TW201729044A - Electronic pen - Google Patents

Abstract

The present invention prevents a switch from being peeled off a printed circuit board due to a pressing operation of an operation member. The printed circuit board having the switch arranged thereon is disposed inside a hollow section of a tubular casing. The operation member is provided so as to enable the switch to be switched between an ON-state and an OFF-state. A mechanism is provided so as to alternately establish a lock state , in which the operation member is held in the state of being pressed in the axial direction , and a return state , in which the operation member is returned to the state before the lock state, each time the operation member is pressed in the axial direction . An actuator receives a force applied from the outside and is displaced so as to be housed inside the casing of the switch, whereby the switch is switched to either the ON-state or the OFF-state. A switch control member slides in the axial direction in response to the pressing operation of the operation member , and applies, in the lock state , a force to the actuator in the direction orthogonal to the displacement direction of the actuator so as to displace the actuator, and causes, in the return state , the actuator to be returned to the state before the displacement .

Description

Electronic pen

The present invention relates to an electronic pen for position indication of a position detecting sensor.

In recent years, as an input tool for an electronic device, an electronic pen has been used. Such an electronic device includes an input surface for accepting input by an electronic pen, and a position detecting sensor is provided below the input surface. If the user indicates the position by the electronic pen on the input surface of the electronic device, the position detecting sensor will detect the position indicated by the electronic pen. The electronic device performs processing corresponding to the pointed position by the electronic pen detected by the position detecting sensor.

As a method of detecting the position of the position detection sensor by the electronic pen, there are various methods such as an electromagnetic induction method, a capacitance method, and a resistance detection method. The electronic pen, in general, has a cylindrical frame body, and is disposed in the hollow portion of the tubular frame body with the electronic circuit component on which the electronic pen is mounted. Printed substrate.

For example, in the case of an electromagnetic induction type electronic pen, a capacitor is disposed on the printed circuit board so as to form a resonant circuit together with the coil, and the coil is wound around a frame provided in a cylindrical shape. On the magnetic core of the nib side. Further, in the case of an active type electrostatic pen type electronic pen, a signal transmitting circuit for transmitting a signal to a position detecting sensor through a conductive core is disposed on a printed circuit board. In this case, the printed circuit board is arranged such that the substrate surface on which the electronic component such as a switch is mounted is oriented in the general direction along the axial direction.

In the electronic circuit on the printed circuit board in the frame of the electronic pen, a plurality of switches including switching by the user's operation are included. For example, in the case of an electromagnetic induction type electronic pen, a switch for changing the resonance frequency of the resonance circuit by switching the capacitor is provided on the substrate surface of the printed substrate (for example, refer to Patent Document 1 (Japanese Patent Application) Kaiping No. 5-233126 ().). Further, in the case of an active type electrostatic pen type electronic pen, it is provided on the substrate surface of the printed circuit board to provide a signal for ON/OFF of the driving power source or a signal from the signal transmitting circuit. ON, OFF switch for switching.

[Previous Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open No. Hei 5-233126

In addition, the operation member operated by the user to turn the switch ON and OFF is provided in the cylindrical side surface of the housing of the electronic pen, and is provided in the cylindrical frame. The case at the end of the axial direction opposite to the side of the nib. When the operation member for pressing the switch to turn ON and OFF is provided at the circumferential side surface of the cylindrical casing, the direction of the force applied by the pressing operation by the operating member The direction is perpendicular to the printed circuit board, and is a force similar to pressing the frame of the switch provided on the printed circuit board against the substrate surface side of the printed circuit board. Therefore, there is no possibility that a force applied to a switch disposed on a printed substrate may cause a problem in connection between the printed substrate and the switch.

On the other hand, when the operation member operated by the user is set to be turned on and off, the operation member is placed at the end portion of the cylindrical frame opposite to the pen tip side in the axial direction. The force due to the pressing operation of the operating member is applied to the frame of the switch mounted on the substrate surface of the printed circuit board in a direction parallel to the substrate surface.

Therefore, when the force caused by the pressing operation of the operating member is directly applied to the frame of the switch fixed to the substrate surface of the printed substrate, the applied force becomes like It is necessary to peel off the general force of the frame of the switch from the printed substrate, and the electrical connection between the printed substrate and the switch may be defective. In particular, the recent electricity In the sub-pen, the shrinking system is progressing, the printed circuit board is reduced in size, and the open relationship is small. Therefore, it is not easy to fix the switch firmly for the printed circuit board, and the use can be made It is important that the formation of a defective electrical connection between the printed substrate and the switch occurs.

The present invention has an object to provide an electronic pen capable of solving the above problems.

In order to solve the above problems, the present invention provides an electronic pen comprising: a cylindrical frame; and a printed substrate in a direction parallel to an axial direction of the cylindrical frame The upper surface is provided with a substrate surface, and is disposed in a hollow portion of the cylindrical frame; and the switch is provided to be displaced from the switch housing and housed in the switch housing. The operation element for switching the switching state is operated as part of an electronic circuit disposed on the substrate surface of the printed circuit board; and the operating member is provided with the cylindrical body from the cylindrical body a protruding portion that protrudes on the side of the opening on the opposite side, and a sliding member that moves toward the tip end side in the axial direction in the cylindrical frame by pressing the protruding portion; and locks The mechanism is configured to lock the sliding member to the state of the pen tip side when the protruding portion of the operation member is pressed in the axial direction. And the sliding member so as to move the state before the pen tip side of the recovered state, the slide mechanism And a switch control member that slides along an inner wall surface of the cylindrical frame to displace the operating element of the switch, and maintains a specific control by the control of the switch control member in the locked state. The operation of the circuit, and in the aforementioned recovery state, the operation of the specific circuit is released by the control of the aforementioned switching control means.

In the electronic pen according to the invention of claim 1, the protruding portion of the operating member that protrudes from the opening side of the tubular frame opposite to the pen tip side is oriented toward the axis by the user. When the pressing operation is performed, the sliding member of the operating member is set to be in a locked state in which the pressed state is held by the locking mechanism, and the switch is controlled by the sliding member. The action element is displaced and the switch state is switched.

At this time, the force from the outside is continuously applied to the action element of the switch, and the action element is maintained in the displaced state. However, at the frame of the switch, the system is not directly applied with the slave. Externally applied force to the action element of the switch. In other words, the state in which the frame of the switch is directly subjected to the force in the axial direction caused by the sliding movement of the operating member in the axial direction is not caused. Therefore, in the electronic pen caused by the present invention, it is possible to reduce or prevent the problem that the electrical connection between the printed substrate and the switch is caused by the application of the frame of the switch fixed to the printed substrate. situation.

According to the present invention, the electronic pen is in a cylindrical frame In the hollow portion, the printed circuit board is disposed such that the substrate surface is along the axial direction of the casing, and a switch is disposed on the substrate surface of the printed circuit board, and is configured to allow a part to be in a cylindrical shape. In the axial direction, the sliding movement of the operating member provided on the side opposite to the nib side opposite to the nib side is switched in the axial direction to switch the switch to the ON state and the OFF state, and in the electronic pen, The problem of poor electrical connection between the printed substrate and the switch due to sliding movement in the axial direction of the operating member is alleviated or avoided.

1, 1B, 1C‧‧‧ electronic pen

2‧‧‧Shell

3‧‧‧Front casing

4‧‧‧ Rear casing

5‧‧‧Magnetic core coil

51‧‧‧ Ferrite core

52‧‧‧ coil

6‧‧‧ Pen pressure detection module

7‧‧‧Printed substrate

8‧‧‧Substrate holder

9, 9B‧‧‧ core

10‧‧‧Knocker

77, 77B, 77C, 77D‧‧ ‧ switch

14‧‧‧Sliding members

142‧‧‧ Pressing member

142b, 143‧‧‧ switch control components

Fig. 1 is a view for explaining the overall outline of the first embodiment of the electronic pen according to the present invention.

Fig. 2 is an exploded perspective view for explaining an internal configuration of the first embodiment of the electronic pen according to the present invention.

Fig. 3 is a view for explaining an important part of the first embodiment of the electronic pen according to the present invention.

Fig. 4 is a view for explaining an electronic apparatus using the first embodiment of the electronic pen according to the present invention.

FIG. 5 is a view showing an example of the configuration of an electronic circuit of the first embodiment of the electronic pen according to the present invention and an electronic circuit configuration of the position detecting device provided in the electronic device of FIG.

Fig. 6 is a view for explaining a configuration example of a switch used in the first embodiment of the electronic pen according to the present invention.

Fig. 7 is a view showing an example of another electronic circuit configuration of the first embodiment of the electronic pen according to the present invention.

Fig. 8 is a view showing an example of the configuration of an electronic circuit according to a second embodiment of the electronic pen according to the present invention.

FIG. 9 is a view showing an example of an electronic circuit configuration of a position detecting device that operates in conjunction with the second embodiment of the electronic pen according to the present invention.

Fig. 10 is a view showing an example of an electronic circuit configuration of another embodiment of the electronic pen by the present invention.

Fig. 11 is a view for explaining the configuration of an important part of another embodiment of the electronic pen caused by the present invention.

Fig. 12 is a view for explaining a configuration of an important part of another embodiment of the electronic pen by the present invention.

Fig. 13 is a view for explaining the configuration of an important part of another embodiment of the electronic pen caused by the present invention.

Fig. 14 is a view for explaining a configuration of an important part of another embodiment of the electronic pen by the present invention.

Fig. 15 is a view for explaining a configuration of an important part of another embodiment of the electronic pen by the present invention.

Hereinafter, an embodiment of an electronic pen caused by the present invention will be described with reference to the drawings.

[First Embodiment]

The first embodiment is a case where the present invention is applied to an electromagnetic pen of an electromagnetic induction type. Fig. 1 is a view for explaining a configuration example of the first embodiment of the electronic pen according to the present invention, and is an outline for explaining the entire outline of the electronic pen 1 of the embodiment.

1(A) and 1(B) show the case (frame) 2 of the electronic pen 1 of this embodiment, and the inside of the case is shown. In the electronic pen 1 of this embodiment, on the side opposite to the pen tip side (front side) (rear side), it is provided to switch ON and OFF of the switch provided in the casing 2 of the electronic pen 1 Knock-type operating mechanism. Fig. 1(A) is a view showing a state in which the striking stick 10 constituting a part of the tapping type operating mechanism is not pressed, and Fig. 1(B) is pressed for the striking stick 10 The state of the map for display. In addition, FIG. 1(C) is a view in which the electronic pen 1 of this embodiment is viewed from the front end side of the core body 9 in the axial direction. The striking rod 10 constituting a part of the tapping type operating mechanism is an example of an operating member.

As shown in Fig. 1 (A) and (B), the electronic pen 1 is provided with a cylindrical frame which is elongated in the axial direction and which constitutes one of the axial directions and the other opening. The housing 2. The case 2 is made of, for example, a resin. In this embodiment, the front case portion 3 is formed on the side opposite to the pen tip side and the case portion 4 is coupled in the axial direction. It. In this embodiment, the rear casing portion 4 is provided with a combined tubular portion 4a, and the combined tubular portion 4a is provided with an outer peripheral surface shape corresponding to the shape of the inner wall surface of the hollow portion of the front casing portion 3, by making the combined cylindrical portion 4a generally as shown in Figs. 1(A) and (B). The press fitting is fitted into the hollow portion of the front casing portion 3, and the rear casing portion 4 is coupled to the front casing portion 3 in the axial direction.

In this embodiment, the outer shape in the direction orthogonal to the central axis of the casing 2 (equivalent to the contour shape of the cross section of the casing 2) is set as shown in Fig. 1(C). Flat shape. Further, in this example, the outer shape in the direction orthogonal to the central axis of the casing 2 is configured to have a central axis sandwiching the casing 2 as shown in Fig. 1(C). Two planes 21, 22 that are parallel to each other. Further, the hollow portion constituting the inside of the casing portion 3 and the rear casing portion 4 before the casing 2 is also formed into a flat shape corresponding to the outer shape of the casing 2 in a cross-sectional shape.

[Example of internal configuration of the front casing portion 3 side]

In the hollow portion of the front casing portion 3, a component group is housed, and the component group is arranged in the axial direction, and the core coil 5, the pen pressure detecting module 6, and the printed circuit board 7 are sequentially arranged side by side, and These are integrally combined in the axial direction and modularized. In this case, the printed circuit board 7 is in the hollow portion of the case portion 3 before the flat portion, so that the direction of the long side in the cross section of the hollow portion becomes the width direction of the substrate surface 7a of the printed substrate 7. The way it is configured. Therefore, as the printed substrate 7, even if the electronic pen 1 is small, it is possible to use a relatively wide format. For a wider substrate.

FIG. 2 is an exploded perspective view showing the components arranged in parallel in the casing portion 3 before being housed in the electronic pen 1. In this embodiment, as described above, the outline shape of the cross section of the front casing portion 3 is set to a flat shape, and the hollow portion of the inside of the front casing portion 3 is also a cross section thereof. Since the shape is a flat shape corresponding to the outer shape of the front casing portion 3, the components housed in the front casing portion 3 are also formed to have a shape corresponding to the flat shape of the hollow portion.

As shown in FIG. 2, in the hollow portion of the front casing portion 3, the core coil 5 and the pen pressure detecting module 6 and the substrate holder 8 are disposed from the pen tip side in the axial direction. . At the substrate mounting table portion 81 of the substrate holder 8, the printed circuit board 7 is placed and locked.

The core coil 5 is formed by winding a coil 52 around a columnar magnetic core (in this example, a ferrite core 51). In the ferrite core 51, a through hole 51a in the axial direction is formed, and the core body 9 is inserted into the through hole 51a to be combined with the writing pressure detecting module 6. The pen pressure detecting module 6 detects the writing pressure applied to the front end portion 92 of the core body 9.

The core body 9 is provided with a core body portion 91 formed of an elongated rod-shaped body and a front end portion 92 at one end side of the core body portion 91 formed in the axial direction. The diameter of the core body portion 91 is selected to be smaller than the inner diameter of the through hole 51a of the ferrite core 51. Core 9 The front end portion 92 is configured to protrude through an opening 31 (refer to FIG. 1 (A), (B)) formed at an end portion of the front case portion 3 which is one of the axial directions of the pen tip. External and exposed. The outer diameter of the front end portion 92 of the core body 9 is, for example, 1 mm to 2 mm. In this example, the core body portion 91 is a cylindrical rod having a smaller diameter than the diameter of the front end portion 92. The diameter of the opening 31 is selected to be larger than the diameter of the core body portion 91.

In this case, the core body 9 is a method of conducting a pressure (pen pressure) applied to the tip end portion 92 to the writing pressure detecting module 6 by way of a hard non-conductive material. The resin is composed of, for example, a synthetic resin such as polycarbonate or POM resin, or an ABS (acryonitrile-butadiene-styrene) resin. In this embodiment, the core body 9 is configured to be insertable and detachable with respect to the writing pressure detecting module 6, so that the core body 9 can be inserted and detached from the electronic pen 1.

In this example, the ferrite core 51 is configured to have a flat cross-sectional shape corresponding to the cross-sectional shape of the hollow portion of the casing 2, and the nib side is designed to be thinner at the tip end. The method is configured as a tapered tapered portion. Further, in the case of this example, the tapered portion of the ferrite core 51 is configured to be covered by the protective cap 53 and protected. Further, the end face of the protective cap 53 provided in such a manner as to protect the nib side of the ferrite core 51 is formed as shown in Figs. 1(A) and (B), and is formed by being The step portion 32 at the side of the opening 31 of the inner wall surface of the casing portion 3 is flushed to be modularized and become one. The movement of the electronic pen parts in the axial direction is limited.

One end 52a of the coil 52 wound on the ferrite core 51 and the other end 52b (the winding start end and the winding end end of the coil 52) are on the opposite side to the nib side in the axial direction The extension is configured to be soldered to the printed substrate 7 placed on the substrate holder 8.

In the embodiment, the pen pressure detecting module 6 includes a pressure sensitive portion 61 formed of a plurality of pressure sensitive members, a holder 62, and an engaging member 63. In the pen pressure detecting module 6 of the embodiment, a pen pressure detecting mechanism having a well-known structure described in Japanese Laid-Open Patent Publication No. 2011-186803 is used as the pressure sensitive portion 61. The configuration of a variable capacitance capacitor that changes the electrostatic capacitance in response to the writing pressure. In addition, the pressure sensitive portion 61 is not limited thereto, and for example, it is also possible to use a capacitance as a function of the pen pressure to make the electrostatic capacitance variable as disclosed in Japanese Laid-Open Patent Publication No. 2013-161307. The composition of the variable capacitance capacitor of the semiconductor element.

The holder 62 is made of an insulating material, for example, made of a resin, and integrally includes a holding portion 621 for holding a plurality of pressure-sensitive members constituting the pressure-sensitive portion 61, and for holding it The two electrodes (the one end and the other end of the variable capacitance capacitor formed by the pressure sensitive portion 61) provided in the pressure sensitive portion 61 of the holding portion 621 are placed on the substrate holder 8 The printed substrate 7 is electrically connected to the connecting portion 622.

The engaging member 63 is supported by the holder 62 When the 621 is engaged, the plurality of pressure sensitive parts of the pressure sensitive portion 61 are held by the holding portion 621 of the holder 62. Further, the engaging member 63 is also provided with a fitting portion for holding and holding the ferrite core 51. The fitting portion of the engaging member 63 in which the ferrite core 51 is fitted and held is fitted with the end portion of the ferrite core 51 on the opposite side to the tapered portion, and is configured to detect the writing pressure. The module 6 is combined with a ferrite core 51 wound with a coil 52.

The substrate holder 8 is made of an insulating material, for example, made of a resin, and includes a substrate mounting portion 81 and a fitting portion 82 with the writing pressure detecting module 6.

The substrate mounting table portion 81 of the substrate holder 8 is provided to have a rectangular rectangular printed circuit board 7 such that the substrate surface 7a has a direction along the axial direction and the longitudinal direction of the substrate surface 7a is used. The mounting surface 81a is placed in the axial direction of the electronic pen 1. Further, the substrate mounting table portion 81 is provided at the end portion of the mounting surface 81a on the housing cap side, and has an end portion on the housing cap side of the printed circuit board 7 by itself and the mounting surface 81a. 7b is used as the protrusion 81b. Further, the substrate mounting table portion 81 is provided with projections 81c, 81d, 81e, and 81f that protrude upward from the mounting surface 81a in order to lock the width direction of the printed circuit board 7.

On the other hand, in the vicinity of the end portion on the pen tip side of the printed circuit board 7, the protrusions 81c, 81d, 81e, and 81f of the mounting surface 81a of the substrate mounting table 81 are engaged with each other. The missing portions 7c, 7d, 7e, and 7f are cut. Further, the printed circuit board 7 is such that the end of the rear case portion 4 side The portion 7b is joined by the projection 81b of the substrate mounting table portion 81 and the mounting surface 81a, and the cutout portions 7c, 7d, 7e, and 7f are placed on the substrate mounting portion 81. The projections 81c, 81d, 81e, and 81f are placed so as to be engaged with each other, whereby they are locked to the substrate mounting table 81.

Further, in the embodiment, the fitting portion 82 of the substrate holder 8 has a tubular shape having a hollow portion into which the connecting portion 622 of the holder 62 of the writing pressure detecting module 6 is inserted. At the connection portion 622 of the holder 62, two terminal members (not shown) connected to the two electrodes of the pressure-sensitive portion 61 are formed with the conductor pattern 71 formed at the printed substrate 7. And 72 is formed by way of connection.

In this example, the connection portion 622 of the holder 62 of the pen pressure detecting module 6 is placed in the fitting portion 82 of the substrate holder 8 so as to be placed on the substrate placing portion 81. The printed circuit board 7 is engaged by gripping from the thickness direction of the printed circuit board 7. Thereby, the electrodes of the pressure sensitive portion 61 held by the writing pressure detecting module 6 and the conductor patterns 71 and 72 formed on the substrate surface 7a of the printed substrate 7 are transmitted through the connecting portion 622. Two terminal members are electrically connected. In addition, the terminal members formed on the substrate surface 7a of the printed circuit board 7 and the terminal members of the connecting portion 622 are soldered in order to make the electrical connection stronger.

The electronic pen 1 of this embodiment is formed by the coil 52 and the capacitor wound around the ferrite core 51 in order to transmit the indicated position to the position detecting device (position detecting sensor). Resonance The capacitor 73 constituting the resonant circuit is formed on the substrate surface 7a of the printed circuit board 7.

Further, the substrate surface 7a of the printed circuit board 7 is provided with a push switch (side switch) 74 that is turned ON when pressed, and that is turned OFF when the pressure is stopped, and is provided with a capacitor. 75 (refer to FIG. 2), and the side switch 74 is used to switch the connection and disconnection of the capacitor 75 to the resonant circuit formed by the coil 52 and the capacitor 73.

Further, in this example, the position of the side peripheral surface of the casing portion 3 before the electronic pen 1 corresponding to the arrangement position of the side switch 74 on the printed circuit board 7 is pierced with a through hole (omitted from the figure) The pressing operation of the side switch 74 in a direction orthogonal to the substrate surface 7a of the printed circuit board 7 (indicated by a dotted line in FIG. 1) is adopted to pass through the through hole. The side switch 74 is configured to be pressed.

Further, in the vicinity of the end portion on the side of the rear casing portion 4 of the substrate surface 7a of the printed circuit board 7, the slide operation is performed in the axial direction from the side of the rear casing portion 4 to be turned ON and OFF. Switch 77. As this switch 77, in this embodiment, a switch called a surface mount switch is used. In this embodiment, the switch 77 is an ON or OFF switch that controls the operation and non-operation of the resonant circuit formed by the coil 52 and the capacitor 73.

The surface mount switch has a small and thin frame as is well known. In the normal state, the action element for turning ON and OFF is protruded from the end face of the thickness portion of the frame. unit. Further, the surface mount switch assumes that the switching state when the operating element is protruded from the outside is set as a preset switching state (initial switching state) (one of an ON state or an OFF state).

On the other hand, when a force in a direction orthogonal to the thickness direction of the casing is applied to the operating element, the operating element is displaced so as to be housed in the switch housing, and the surface mounting relationship is switched to be opposite to the initial switching state. status. Thereafter, when the force applied to the operating element is removed, the operating element returns to a state of being protruded to the outside, and the surface mounting relationship is operated to return to the initial switching state.

In this embodiment, the switch 77 formed by the surface mount switch is used as the operating element 77a for switching between ON and OFF thereof, as shown in Fig. 1(A) 2 and Fig. 3(A) which will be described later. Generally, it is disposed on the substrate surface 7a of the printed circuit board 7 in a state of protruding along the direction of the substrate surface 7a of the printed circuit board 7. In other words, the switch 77 is disposed such that the thickness direction of the thin frame is orthogonal to the substrate surface 7a.

Further, in this embodiment, as shown in Fig. 1, Fig. 2, and Fig. 3, at the end portion on the side of the casing portion 4 after the printed substrate 7, the width of the printed substrate 7 is made wider than the other. In a narrower manner, an L-shaped cutout portion 7g that is cut in the longitudinal direction (the axial direction of the electronic pen) is formed. As shown in FIG. 1 and FIG. 3, in a portion of the cutout portion 7g of the printed board 7, a specific space is formed between the front portion of the front housing portion 3 and the inner wall of the front housing portion 3. The switch 77 is such that its action element 77a protrudes from the space of the cutout portion 7g. The output method is disposed on the substrate surface 7a of the printed circuit board 7. That is, the switch 77 is such that its operating element 77a crosses the direction of the axis of the electronic pen (in this example, it is the wide direction of the printed substrate 7 and is aligned with the axis direction) The direction in which the intersection is protruded and positioned in the space of the cutout portion 7g of the printed circuit board 7 is disposed on the substrate surface 7a of the printed circuit board 7.

In this embodiment, as will be described later, when the striking rod 10 constituting a part of the tapping type mechanism is pressed, the sliding member 14 is integrally formed to slide integrally with the striking rod 10. The front end portion is configured to be able to enter the space portion of the cutout portion 7c and to slide in the axial direction (refer to FIGS. 1(A) and (B)). Further, the external force is applied to the operating element 77a of the switch 77 by the sliding movement of the sliding member 14 in the axial direction, and the switch 77 is switched from the initial switching state. Thereafter, when the sliding member 14 returns to the original position in response to the return of the striking rod 10 to the original state, since the external force applied to the operating member 77a of the switch 77 disappears, the switch 77 is restored to Initial switching status.

[Example of internal configuration of the rear casing portion 4 side]

Next, with reference to Fig. 3, a portion of the knocking mechanism provided at the side of the casing portion 4 after the electronic pen 1 of this embodiment will be described. That is, FIG. 3 is a diagram for explaining a portion of the knocking mechanism at the side of the casing portion 4 after being disposed in the electronic pen of this embodiment, and FIG. 3(A) is a tap The figure when the stick 10 is not in the state of the push operation, Fig. 3(B) is a view showing a state in which the striking stick 10 is pressed.

The tapping mechanism of the electronic pen 1 of this embodiment is configured similarly to the striking cam mechanism of the percussive ballpoint pen of the stationery, and is provided with the striking bar 10, the rotating member 11, and the cam body 12. And the combination of the return coil springs 13 and the locking mechanism. The detailed configuration and operation of the striking cam mechanism of the striking ball pen are well known, and thus the description thereof is omitted here.

In the electronic pen 1 of this embodiment, the striking rod 10 is provided with a cross section having a hollow portion with the rear casing portion 4 (the cross section is a cross section perpendicular to the axial direction, and the following Similarly, the first rod-shaped portion 10a having a cross-sectional shape of a flat shape and having a cross section which is smaller than the transverse cross section of the hollow portion and integrally formed with the first rod-shaped portion 10a The second rod portion 10b of the portion where the rotary element 11 is connected, and the crotch portion 10c formed at the end surface on the side opposite to the joint side between the first rod portion 10a and the second rod portion 10b, Constituting it. Further, the striking stick 10 is configured to be capable of accepting a user's tapping operation (pressing operation) and slidingly moving in the axial direction of the hollow portion of the rear casing portion 4 to make the body itself One of the first rod-like portions 10a and the crotch portion 10c are housed in the rear casing portion 4 so as to protrude from the opening 4b of the rear casing portion 4 to the outside. The striking stick 10 constitutes a projection.

The crotch portion 10c is formed so as to cause a step difference between itself and the first rod portion 10a. In this example, the cross section of the crotch portion 10c is cross-sectioned. The shape and size of the surface are set to be the same as the outer peripheral shape and size of the cross section of the rear casing portion 4. When the electronic pen 1 of the embodiment is taken out (extracted) from the storage recessed portion provided in the casing of the electronic device provided with the position detecting sensor, the crotch portion 10c is taken out. Use the finger force to use it.

The cam body 12 is formed on the inner wall surface of the rear casing portion 4 and is configured to engage with the rotary member 11. The rotary member 11 is moved in the axial direction and rotated in the hollow portion of the rear casing portion 4 in accordance with the sliding movement of the striking rod 10 in the axial direction, and the engagement state with the cam body 12. Change. Thereby, a tapping action is performed in response to the tapping operation of the striking stick 10.

Further, in this embodiment, the sliding member 14 is coupled to the rotary member 11. The sliding member 14 is formed of a rod-shaped body 141 and a pressing portion member 142, and a pressing portion member 142 is attached to one end side of the rod-shaped body 141, and the other end portion of the rod-shaped body 141 is attached. The side is attached to a fitting portion (not shown) provided at the rotary member 11 to be attached. The pressing portion member 142 includes a fitting portion 142a fitted to the rod-shaped body 141 and a switching force for controlling the switch 77 by applying a force in the axial direction to the operating member 77a of the switch 77. Switch control member 142b. The switch control member 142b, in this example, is constituted by a rod-shaped piece.

As shown in FIGS. 3(A) and (B), the fitting portion 142a of the pressing portion member 142 is formed of a cylindrical member having a fitting recess in which the rod-shaped body 141 is fitted. Opening of the pressing member 142 The closing control member 142b is constituted by a rod-like piece that can be moved in the axial direction in the cutout portion 7g of the printed board 7, and the fitting portion 142a with the pressing portion member 142 is on the cylindrical side thereof. Integrate in one piece. In this case, the rod-like piece as the switch control member 142b of the pressing portion member 142 is configured to be capable of being matched when the knocking bar 10 is not pressed as shown in Fig. 3(A). The action element 77a of the switch 77 provided at the printed substrate 7 does not apply a force in the axial direction, and when the knocker 10 is pressed as shown in Fig. 3(B), it can be The operating element 77a of the switch 77 disposed at the printed circuit board 7 applies a general length of the force in the axial direction.

Further, the return coil spring 13 of the knocking cam mechanism is attached in a state in which the rod-shaped body 141 of the sliding member 141 is inserted, and is configured to be provided on the end surface in the axial direction of the rotary element 11 and The recovery coil spring locking portions 15 in the rear casing portion 4 are stretched and contracted.

That is, in the state of FIG. 3(A), if the crotch portion 10c of the striking rod 10 is pressed, the rotating member 11 is included by the sliding movement with respect to the axial direction of the striking rod 10. And the action of the knocking cam mechanism of the cam body 12, in the state where the crotch portion 10c of the striking rod 10 is in the vicinity of the end portion of the opening 4b of the rear casing portion 4, in the state of FIG. 3(B), the striking rod The 10 series becomes a locked state that is locked.

At this time, the switch control member 142b of the pressing portion member 142 enters the space of the cutout portion 7g of the printed circuit board 7, and applies an external force to the operating element 77a of the switch 77 so as to be housed in the operating element 77a. The direction of the body of the switch 77 is displaced. herein In the case, as shown in Figs. 3(A) and (B), the action element 77a of the switch 77 of this example is rotated about the pivot point 77b, whereby it is as in Fig. 3(A). Generally, it is displaced as shown by the arrow so as to be housed in the casing of the switch 77. Therefore, the force in the axial direction caused by the sliding movement of the switch control member 142b is applied to the direction intersecting the displacement direction of the operating element 77a of the switch 77 (in this example, the direction orthogonal to each other) )on.

Thereby, the switch 77 is switched to one of an OFF state or an ON state from one of an ON state or an OFF state which is an initial switching state. Further, at this time, the first rod-like portion 10a formed on the striking rod 10 is engaged with the engaging projection (not shown) formed on the inner wall of the hollow portion of the rear casing portion 4 The fitting hole 10d at the position and the striking rod 10 are locked in the state of Fig. 3(B).

Further, if the side of the crotch portion 10c of the striking rod 10 is pressed again from the state of Fig. 3(B), the locking state is blocked by the striking cam mechanism including the rotating member 11 and the cam body 12. Release, by returning the coil spring 13, the striking rod 10, and the rotating element 11, sliding back in the axial direction in a state of returning to the state of FIG. 3(A), and FIG. 3(A) It is locked in the state. Further, at this time, the second rod-like portion 10a formed on the striking rod 10 is engaged with the engaging projection (not shown) formed on the inner wall of the hollow portion of the rear casing portion 4. The fitting hole 10e and the striking rod 10 are locked in the state of Fig. 3(A).

And, in response to this, the striking rod 10 and the rotating member 11 Returning to the state of FIG. 3(A), the switch control member 142b of the pressing portion member 142 that has entered the space of the cutout portion 7g of the printed circuit board 7 is returned as shown in FIG. 3(A). When the external force is applied to the operating element 77a of the switch 77, the operating element 77a returns to a state in which it protrudes from the casing of the switch 77. Thereby, the switch 77 is switched from one of the OFF state or the ON state to one of the ON state and the OFF state.

As in the above, in response to the tapping operation for the striking stick 10, the switch 77 is switched. When the switching control of the switch 77 is performed, in this embodiment, the operating element 77a of the switch 77 is displaced by the force in the axial direction caused by the switch control member 142b of the pressing portion member 142. However, the force in the axial direction is a force applied in a direction intersecting with the direction in which the operating element 77a is displaced in the housing, and is applied to the operating element 77a of the switch 77. There is no case where it is directly applied to the frame of the switch 77. That is, the frame of the switch 77 is applied with the force of the displacement direction caused by the action element 77a, but the axis corresponding to the tapping operation is not directly applied. The situation of the direction of force. Further, of course, the force by which the operating element 77a is to be displaced in the frame of the switch 77 is a force smaller than the force in the axial direction corresponding to the tapping operation.

Further, in this example, the operating member is constituted by the sliding member 14 provided with the striking rod 10 and the switch control member.

In this way, in this embodiment, The tapping operation is configured to perform switching control of the switch 77. However, since there is no case where the force of the axial direction corresponding to the tapping operation is directly applied to the casing of the switch 77, This can reduce or avoid the problem that the electrical connection between the printed circuit board 7 and the switch 77 is defective due to the application of the force that causes the switch 77 to peel off from the printed substrate 7.

In this case, since the casing 2 of the electronic pen 1 has a flat shape, and the printed circuit board 7 is such that the longitudinal direction of the transverse section along the flat hollow space of the casing becomes the width direction of the substrate surface. Since the method is housed in the casing 2, the printed circuit board 7 can be made wider. Therefore, even if the L-shaped cutout portion 7g having the longitudinal direction is formed at the end portion of the printed circuit board 7, the space for arranging the switch 77 can be secured at the printed circuit board 7, and the system can be easily installed. The switch 77 is disposed on the printed circuit board 7 in a state where the operating element 77a of the switch 77 protrudes from the space portion of the L-shaped cutout portion 7g.

[Storage of the electronic pen 1 with an electronic device having a position detecting device]

The electronic pen 1 of this embodiment is configured to be housed in a casing of an electronic device including a position detecting device including a position detecting sensor. Fig. 4 shows an example of an electronic device 200 using the electronic pen 1 of the first embodiment. In this example, the electronic device 200 is a high-performance mobile phone terminal having a display screen 200D having a display device such as an LCD (Liquid Crystal Display). The lower portion (back side) of the display screen 200D is provided with a position detecting device 202 having an electromagnetic induction method.

In the electronic device 200, if the position indication operation is performed by the electronic pen 1 on the display screen 200D, the position detecting device 202 provided on the back side of the display screen 200D detects that the electronic pen 1 has been used. The position of the operation and the writing pressure, and the microcomputer included in the position detecting device 202 of the electronic device 200 apply display processing corresponding to the operation position and the writing pressure on the display screen 200D.

Further, in the casing of the electronic device 200 of this example, the housing recess 201 for accommodating the electronic pen 1 is provided. The user stores the electronic pen 1 in the housing recess 201 as needed, and takes out the electronic pen 1 housed in the housing recess 201 from the electronic device 200, and uses the display screen 200D as an input surface. Perform a position indication operation.

In this embodiment, the electronic pen 1 is in use, as shown in FIG. 4(A), and the striking stick 10 is set to be in a state in which the locked state is released, and the first stick of the striking stick 10 is used. A part of the portion 10a is exposed from the rear case portion 4. On the other hand, when it is housed in the housing recess 201 of the electronic device 200, the knocking operation is performed in a locked state, and the knocking bar 10 is housed in the rear casing portion 4. status. Therefore, when the electronic pen 1 is housed in the housing recess 201 of the electronic device 200, as shown in FIG. 4(A), the percussion stick 10 of the electronic pen 1 after the reception is not from the electronic device. The frame of the machine 200 protrudes and becomes a state that does not interfere.

Moreover, the electronic pen 1 is received from the electronic device 200. When the hole 201 is taken out, first, the knocking operation is performed on the electronic pen 1 to release the locked state, and as shown in FIG. 4(B), the tapping bar 10 is set from the rear case portion 4 as usual. Outstanding state. Thereby, the user can easily take the electronic pen 1 out of the housing recess 201 of the electronic device 200 by using the crotch portion 10c of the striking stick 10 as a finger application point.

Further, in the peripheral surface of the casing 2 of the electronic pen 1 of this example, as in the foregoing, at a position corresponding to the side switch 74 disposed at the printed circuit board 7, it is penetrated. The hole 78 and the pressing operation element 76 of the side switch 74 are configured to be exposed so that the side switch 74 can be pressed by the through hole 78.

[Example of electronic circuit of electronic pen 1 and electronic circuit of position detecting device used together with electronic pen 1]

Next, an example of the circuit configuration in the position detecting device for detecting the position of the electronic pen 1 and the detection of the pen pressure by the electronic pen will be described with reference to Fig. 5 .

The electronic pen 1 is provided with a resonance circuit 1R for electromagnetic coupling with the position detecting sensor 210 of the position detecting device 202. However, in this example, the resonant circuit 1R is a coil 52 and a capacitor 73. The variable capacitance capacitors 6C constituted by the pen pressure detecting module 6 are connected in parallel with each other. Further, the resonant circuit 1R is constructed by connecting a series circuit between the side switch 74 and the capacitor 75 formed of the wafer component in parallel as shown in Fig. 5. The side switch 74 is made by the pressing operation performed by the user. ON and OFF, and control is made as to whether or not the capacitor 75 and the coil 52 are connected in parallel to form a part of the resonance circuit 1R.

Further, in order to control the operation and non-operation of the resonant circuit 1R, a switch 77 is connected in parallel with the coil 52. In this embodiment, the switch 77 is a switch having a constant opening type as shown in the schematic diagram of Fig. 6(A), and is not applied to the operating member 77a as if the operating member 77a is accommodated. In the initial switching state of the general force in the frame of the switch 77, the contact 77c is turned OFF. On the other hand, the switch 77 of this embodiment applies a force to the operating element 77a, and the operating element 77a is displaced by being rotated in the center of the rotating fulcrum 77b to be accommodated in the casing of the switch 77. When the contact 77c is turned ON (closed).

Therefore, in a non-locked state (a state shown in FIG. 1(A) and FIG. 3(A)) in which one of the striking bars 10 protrudes from the rear casing portion 4, since the switch 77 is OFF ( Therefore, the connection of the capacitors 73, 6C, and 74 of the coil 52 is effective, and the resonant circuit 1R is in an operating state. Moreover, if the knocker bar 10 is pressed and becomes a locked state (the state shown in FIG. 1(B) and FIG. 3(B)) which does not protrude from the rear case part 4, since the switch 77 is a Since it is ON (closed), since both ends of the coil 52 are short-circuited by the switch 77, the same state is obtained when the capacitors 73, 6C, and 74 are not connected to the coil 52, and the resonant circuit 1R is used. Becomes a non-action state.

In this case, when the resonant circuit 1R is in an operating state, The connection of the capacitor 75 to the resonant circuit 1R is controlled by the ON/OFF of the side switch 74, and the resonance frequency is changed. Further, in response to the writing pressure applied to the writing pressure detecting module 6, since the electrostatic capacitance of the capacitor 6C constituted by the writing pressure detecting module 6 is changed, the resonance frequency is changed in response to the writing pressure. . The position detecting device 202 is configured to detect a frequency change by detecting a phase change of the signal from the electronic pen 1, and detect whether the side switch 74 is pressed, and detect that the phase switch 74 is pressed. The pen pressure at the core 9 of the electronic pen 1.

At the position detecting device 202, the position detecting coil 210 is formed by laminating the X-axis direction loop coil group 211 and the Y-axis direction loop coil group 212. Further, the position detecting device 202 is provided with a selection circuit 213 that is connected to the X-axis direction loop coil group 211 and the Y-axis direction loop coil group 212. The selection circuit 213 sequentially selects one of the two loop coil groups 211 and 212.

Further, in the position detecting device 202, an oscillator 231, and a current driver 232, and a switching connection circuit 233, and a signal amplifier 234, a detector 235, a low-pass filter 236, and a sample hold are provided. A circuit 237, an A/D conversion circuit 238, a synchronous detector 239, a low pass filter 240, a sample and hold circuit 241, an A/D conversion circuit 242, and a processing control unit 243. The processing control unit 233 is constituted by a microcomputer.

The oscillator 231 generates an alternating current signal of frequency f0. Moreover, the oscillator 231 supplies the generated alternating current signal to the current drive. At the actuator 232 and the synchronous detector 239. The current driver 232 converts the AC signal supplied from the oscillator 231 into a current and sends it to the switching connection circuit 233. The switching connection circuit 233 is a connection destination (the transmission side terminal T and the reception side terminal R) to which the loop coil selected by the selection circuit 213 is connected by the control from the processing control unit 243. ) for switching. Among the connection targets, a current driver 232 is connected to the communication side terminal T, and a signal receiving amplifier 234 is connected to the reception side terminal R.

The induced voltage generated at the loop coil selected by the selection circuit 213 is sent to the receiving amplifier 234 via the selection circuit 213 and the switching connection circuit 233. The sense amplifier 234 amplifies the induced voltage supplied from the loop coil and sends it to the detector 235 and the synchronous detector 239.

The detector 235 detects the induced voltage generated at the loop coil, that is, the received signal, and sends it to the low pass filter 236. The low pass filter 236 is provided with a cutoff frequency which is sufficiently lower than the frequency f0 described above, and converts the output signal of the detector 235 into a direct current signal and sends it to the sample hold circuit 237. The sample-and-hold circuit 237 holds the voltage value of the output signal of the low-pass filter 236 at a specific timing (specifically, at a specific timing during the signal receiving period), and sends it to the A/D (Analog). To Digital) conversion circuit 238. The A/D conversion circuit 238 converts the analog output of the sample and hold circuit 237 into a digital signal and sends it to the processing control unit 243.

Synchronous detector 239, on the other hand, will receive the signal amplifier The output signal of 234 is synchronously detected by the AC signal from the oscillator 231, and the signal of the level corresponding to the phase difference between the two is sent to the low pass filter 240. The low pass filter 240 is provided with a cutoff frequency which is more sufficiently lower than the frequency f0, and converts the output signal of the synchronous detector 239 into a direct current signal and sends it to the sample hold circuit 241. The sample-and-hold circuit 241 holds the voltage value at the specific timing of the output signal of the low-pass filter 240 and sends it to the A/D (Analog to Digital) conversion circuit 242. The A/D conversion circuit 242 converts the analog output of the sample and hold circuit 241 into a digital signal and sends it to the processing control unit 243.

The processing control unit 243 controls each unit of the position detecting device 202. That is, the processing control unit 243 controls the timing of the selection of the loop coil at the selection circuit 213, the switching of the switching connection circuit 233, and the timing of the sample and hold circuits 237 and 241. The processing control unit 243 loops the coil group 211 and the Y-axis direction coil group 212 from the X-axis direction based on the input signals from the A/D converter circuits 238 and 242 for a certain transmission duration. Send the wave for transmission.

At each of the loop coils of the X-axis direction loop coil group 211 and the Y-axis direction loop coil group 212, an induced voltage is generated by radio waves transmitted from the electronic pen 1. The processing control unit 243 calculates the coordinate value of the pointing position of the electronic pen 1 in the X-axis direction and the Y-axis direction based on the level of the voltage value of the induced voltage generated at each of the loop coils. Further, the processing control unit 243 checks the level of the signal corresponding to the phase difference between the transmitted radio wave and the received radio wave. It is detected whether the side switch 74 is depressed and the pen pressure is detected.

In this manner, at the position detecting device 202, the position of the electronic pen 1 that has approached can be detected by the processing control unit 243. Further, by detecting the phase (frequency offset) of the received signal, it is possible to detect whether or not the pressing operation element 76 of the side switch 74 at the electronic pen 1 is pressed, and can detect it. The pen pressure applied to the core 9 of the electronic pen 1.

Further, in the electronic device 200, as a function corresponding to the ON or OFF operation of the side switch 74 of the electronic pen 1, for example, a function similar to the click operation of the mouse on the display screen 200D is registered in advance, and the like. The operation information of the side switch 74 from the control unit 243 is processed, and the control circuit (main computer) of the electronic device 200 determines that the function registered as described above is performed.

As described above, in the electronic pen 1 of this embodiment, the switch 77 is turned ON by pushing the striking rod 10 into the casing 2 and setting it to the locked state by the locking mechanism. The resonant circuit 1R is in a non-operating state. In this state, the electronic pen 1 of this embodiment is housed in the housing recess 201 of the electronic device 200 as shown in FIG. 4(A). Therefore, there is no case where the striking stick 10 protrudes from the outside and causes an obstacle.

However, it is necessary to note that the electronic pen 1 is locked in a state in which the striking stick 10 is pushed into the casing 2, and therefore, by the striking mechanism. Compensates with the elastic force of the coil spring 13 for recovery and becomes constant for the switch 77 of the printed substrate 7. A state in which a force in the axial direction is applied.

However, in the electronic pen 1 of this embodiment, even in the case of the operating element 77a of the switch 77, a force in the axial direction is constantly applied, and the force in the axial direction is also applied to the operating element 77a of the switch. The direction in which the displacement directions intersect is not in a state of being directly applied to the frame of the switch 77. Therefore, even if the switch 77 of the printed circuit board 7 is applied constantly, there is no force that causes the switch 77 to peel off from the printed circuit board 7. Therefore, it is possible to reduce or even avoid the printed circuit board 7 and the switch. The problem of poor electrical connection between 77.

Further, in the electronic pen 1 of this embodiment, since the striking stick 10 is set to be in an unlocked state (returned state) protruding from the casing 2, the electronic component 1 of the switch 77 is operated at the operating element 77a of the switch 77. Since no force is applied, there is no force at all that causes an electrical connection between the switch 77 and the printed circuit board 7 to be defective.

Further, in the electronic pen 1 of the embodiment, the printed circuit board is formed in the hollow portion of the casing 2 from the ferrite core 51 around which the coil 52 is wound up to the substrate holder 8 The parts of the electronic pen for the parts that are arranged in parallel in the axial direction and are integrally formed. Further, the end portion on the nib side of the ferrite core 51 is opposed to the step portion 32 at the side of the opening 31 of the front case portion 3 formed on the pen tip side of the electronic pen 1 via the protective cap 53. The movement in the axial direction of the parts for the electronic pen is limited.

Therefore, when by the tapping rod 10 for the electronic pen 1, When the stroke of the line is applied and the force generated in the axial direction of the electronic pen 1 is directly applied to the frame of the switch 77, the tap 10 is pressed every time. At the time of the operation, the end portion on the nib side of the ferrite core 51 is in contact with the step portion 32 at the side of the opening 31 of the front casing portion 3 via the protective cap 53. Further, when the pressure is applied to the ferrite core 51 from the outside for a long period of time, the magnetic flux density of the magnetic flux penetrating the ferrite core 51 is affected, and therefore, there is a resonance characteristic of the resonance circuit 1R. The difference between the change (resonance frequency change). The change in the resonance characteristics of the resonant circuit 1R may cause erroneous detection at the position detecting device 202, for example, for the detection of the writing pressure or the operation of the side switch 74.

However, in the electronic pen 1 of this embodiment, as in the above-described general, the force generated in the axial direction of the electronic pen 1 by the tapping operation performed on the striking stick 10 of the electronic pen 1 is It is configured not to be directly applied to the frame of the switch 77. Therefore, at the ferrite core 51, the pressure applied from the outside is hardly generated based on the tapping operation, and the pressure can be reduced and even reduced. The influence on the resonance characteristics of the resonance circuit 1R is avoided.

[Other examples of electronic circuits of electronic pen 1]

In the example of FIG. 5, the operation and non-operation of the resonance circuit 1R are controlled by connecting the switch 77 and the coil 52 in parallel, but the operation and non-operation of the resonance circuit 1R are controlled. The configuration is not limited to this.

FIG. 7 is a display of another example of the electronic circuit of the electronic pen 1. In the example of FIG. 7, the coil 52 and the capacitor 73 and the variable capacitance capacitor formed by the pen pressure detecting module 6 are shown. A switch 77 is inserted between 6C and a series circuit between the side switch 74 and the capacitor 75. That is, the switch 77 is inserted between one end of the coil 52 and the other circuit elements. Other than this, it is the same as the electronic circuit example of the electronic pen 1 shown in FIG.

In the example of FIG. 7, the switch 77 is a switch having a constant-closing type as shown in the schematic diagram of FIG. 6(B), and the action element 77a is not applied to the action element 77a. The contact 77c is turned ON (closed) in the initial switching state of the general force in the casing of the switch 77. On the other hand, the switch 77 of this embodiment applies a force to the operating element 77a, and the operating element 77a is displaced by being rotated in the center of the rotating fulcrum 77b to be accommodated in the casing of the switch 77. When the contact 77c is turned OFF.

Therefore, in a non-locked state (a state shown in FIG. 1(A) and FIG. 3(A)) in which one of the striking bars 10 protrudes from the rear casing portion 4, since the switch 77 is ON ( In the closed state, the capacitors 73, 6C, and 74 are connected in parallel to the coil 52, and the resonant circuit 1R is in an operating state. Moreover, if the knocker bar 10 is pressed and becomes a locked state (the state shown in FIG. 1(B) and FIG. 3(B)) which does not protrude from the rear case part 4, since the switch 77 is a OFF, therefore, the capacitors 73, 6C, and 74 are in a non-connected state with respect to the coil 52 by the switch 77, and the resonant circuit 1R becomes non-connected. Action state.

The electronic pen 1 exhibits the same operational effects as those of the electronic circuit of Fig. 5 even in the configuration in which the electronic circuit of Fig. 7 is provided.

Further, in the above-described embodiment, in order to accommodate the electronic pen 1 in the housing recess 201 of the electronic device 200, the knocker bar 10 is not protruded from the housing of the electronic device 200 during storage. In the state in which the electronic pen is not in use (when the resonant circuit 1R is not in operation), the striking stick 10 is configured to be pushed into the locked state in the casing 2. However, in the electronic pen of this embodiment, it is not absolutely necessary to adopt the general configuration of this example. When the electronic pen is not in use (when the resonant circuit 1R is not in operation), the knocker 10 may be configured to be The non-locked state of the state in which the casing 2 is protruded.

[Second Embodiment]

The first embodiment described above is an electromagnetic induction type electronic pen. However, the present invention can also be applied to an active electrostatic pen as an example of an electrostatic pen type electronic pen. The electronic pen 1B of the second embodiment described below is an active electrostatic pen for this purpose. Fig. 8 is a view showing an example of an electronic circuit of the electronic pen 1B of the second embodiment, and the same components as those of the first embodiment are denoted by the same reference numerals.

The electronic pen 1B of the second embodiment is provided with a signal transmitting circuit 101, and detects the position from the signal transmitting circuit 101. The signal is sent to the position detecting sensor of the electrostatic capacitance type position detecting device corresponding to the electronic pen 1B. The position detecting sensor is configured to detect the position indicated by the electronic pen 1B by detecting the position detecting signal from the electronic pen 1B.

The mechanical structural configuration of the electronic pen 1B of the second embodiment is slightly the same as that of the electronic pen 1 of the first embodiment shown in Fig. 1. However, in the electronic pen 1B of the active electrostatic pen described below, the coil 52 wound around the ferrite core 51 is set as a charging circuit for charging the power of the signal transmitting circuit 101. portion.

Further, in the electronic pen 1B of the second embodiment, the electronic pen 1 of the first embodiment is provided with a core body 9B having a core material, and is disposed on the printed circuit board. The electronic components and the electronic circuits formed by the electronic components are different.

The core body 9B of the electronic pen 1B of the second embodiment is made of, for example, a conductive member made of a conductive metal or a hard resin in which a conductive powder is mixed. Further, as shown in Fig. 8, the position detecting signal from the signal transmitting circuit 101 is supplied to the core 9B. The signal transmitting circuit 101 is disposed on the printed circuit board 7 and electrically connected to the output end of the core 9B and the signal transmitting circuit 101 by a connecting conductor 102 formed of a wire or a metal conductor.

In this case, the core body 9B is inserted into the through hole of the ferrite core 51 and fitted to the pressing member (pressure transmitting member) of the pen pressure detecting module 6, but if it is not set directly The ground member is fitted to the pressing member of the pen pressure detecting module 6, but is provided with a conductive rubber or the like. It is preferable that the conductive elastic member is fitted to the pressing member and the conductive elastic member is electrically connected to the signal transmitting circuit 101 via the connecting conductor 102. Thereby, the core 9B can be connected to the signal transmitting circuit 101 by fitting the core 9B to the pressing member of the writing pressure detecting module 6 via the conductive elastic member.

In this case, the signal transmitting circuit 101 is constituted by an oscillating circuit in this example, and the oscillating circuit is, for example, a coil and a capacitor (corresponding to the capacitor 73 of the first embodiment) The resulting resonance is constructed using an LC oscillating circuit. Further, both ends of the variable capacitance capacitor 6C constituted by the writing pressure detecting module 6 are connected to the signal formed on the printed substrate in such a manner as to form part of the resonant circuit as shown in FIG. The signaling circuit 101 is electrically connected. Further, as shown in Fig. 8, the series circuit between the side switch 74 and the capacitor 75 is also connected to the signal transmitting circuit 101 in parallel with the variable capacitance capacitor 6C. The oscillating circuit constituting the signal transmitting circuit 101 generates a frequency change in response to the capacity of the variable capacitance capacitor 6C constituted by the writing pressure detecting module 6, and changes the frequency in response to the ON/OFF of the side switch 74. The signal is supplied to the core 9B.

Further, in this example, the electronic circuit formed at the printed circuit board 7 is as shown in FIG. 8. In addition to the signal transmitting circuit 101, a driving circuit for driving the signal transmitting circuit 101 is provided. A driving voltage generating circuit 110 (power supply circuit) of a voltage (supply voltage). The driving voltage generating circuit 110 is provided with the following circuit structure The circuit configuration includes an electric double layer capacitor 111 as an example of a storage element, a rectifying diode 112, a voltage conversion circuit 113, a capacitor 114, and a switch 77B.

The switch 77B controls the operation and non-operation of the driving voltage generating circuit 110 by controlling the supply of the voltage to the voltage converting circuit 113 stored in the electric double layer capacitor 111, and for the signal. The supply of the driving voltage of the signaling circuit 101 is controlled. The switch 77B is disposed on the printed circuit board 7 similarly to the switch 77 of the first embodiment. However, in the electronic pen 1B of the second embodiment, the switch 77B uses the constant-close type switch shown in Fig. 6(B).

In the electronic pen 1B of this example, when it is mounted on a charger (not shown), an induced magnetic power is generated at the coil 52 by the alternating magnetic field generated by the charger, and is transmitted through the diode 112. The double layer capacitor 111 is charged. The voltage conversion circuit 113 receives the voltage accumulated in the electric double layer capacitor 111 through the switch 77B, converts it into a constant voltage, and supplies it as a power source of the signal transmitting circuit 101.

Further, in the case where the electronic pen 1B as the electrostatic stylus in this example performs a normal operation of transmitting a signal to the position detecting sensor of the position detecting device, as shown in FIG. 8, the coil 52 is configured to be The fixed potential (in this example, the ground potential (GND)) is used, and the coil 52 functions as a shield electrode provided around the core 9B. In addition, the electronic pen 1B of this embodiment performs The fixed potential of the coil 52 during normal operation is not limited to the ground potential, and may be the positive side potential of the power source (drive voltage) or the middle side of the power source (drive voltage) and the ground potential. Potential.

Since the electronic pen 1B of the second embodiment is pressed, the knocker bar 10 is pressed and is not locked from the rear casing portion 4 (Fig. 1 (Fig. 1). B) and the state shown in FIG. 3(B), since the switch 77B is turned OFF, the voltage system accumulated in the electric double layer capacitor 111 is not blocked by the switch 77B. It is supplied to the voltage conversion circuit 113. Therefore, at the signal transmitting circuit 101, the driving voltage is not supplied from the voltage converting circuit 113, and the signal transmitting circuit 101 is in a non-operating state, and does not transmit a signal.

On the other hand, in a non-locked state (a state shown in FIG. 1(A) and FIG. 3(A)) in which one of the striking bars 10 protrudes from the rear casing portion 4, since the switch 77B is Since it is ON (closed), the voltage accumulated in the electric double layer capacitor 111 is supplied to the voltage conversion circuit 113 through the switch 77B. Therefore, the voltage is supplied from the voltage conversion circuit 113 to the signal transmitting circuit 101, and the signal transmitting circuit 101 is in an operating state and transmits a signal.

As described above, in the electronic pen 1B of the second embodiment, the supply of the driving voltage (power supply voltage) to the signal transmitting circuit 101 is controlled by the tapping operation of the striking stick 10. The signal is controlled by the signal, and the operation and non-operation of the electronic pen 1B can be controlled.

The signal transmitting circuit (oscillation circuit) 101 generates a signal for changing the frequency in response to the capacity of the variable capacitance capacitor 6C constituted by the pen pressure detecting module 6, and is generated in response to the ON of the side switch 74. And OFF to change the frequency of the signal, and the generated signal is supplied to the core 9B. The signal from the signal transmitting circuit 101 is radiated by the core 9B as an electric field generated based on the signal. The position detecting device that detects the coordinates of the position indicated by the electronic pen 1B of the second embodiment can extract the pen pressure applied to the core 9B based on the frequency of the signal, and The ON and OFF operations of the side switch 74 can be detected.

FIG. 9 is a diagram for detecting a position on the position detecting sensor for receiving a signal from the electronic pen 1B configured as an active electrostatic capacitance type stylus and detecting the writing pressure and detecting the same. The position detecting device 700 of the ON/OFF operation of the side switch 74 is a block diagram for explanation.

The position detecting device 700 of this embodiment is formed by a position detecting sensor 710 and a pen detecting circuit 720 connected to the position detecting sensor 710 as shown in FIG. In this example, the position detecting sensor 710 is a cross-sectional view, but the first conductor group 711, the insulating layer (not shown), and the second conductor group 712 are sequentially stacked from the lower layer side. Formed by. The first conductor group 711 is, for example, a plurality of first conductors 711Y ₁ , 711Y ₂ , ... 711Y _m (m is an integer of 1 or more) extending in the lateral direction (X-axis direction). Arranged in parallel in the Y-axis direction.

Further, the second conductor group 712 is formed so as to extend in a direction intersecting with the extending direction of the first conductors 711Y ₁ , 711Y ₂ , ... 711Y _m , and in this example, the longitudinal direction is orthogonal to each other. The plurality of second conductors 712X ₁ , 712X ₂ , ..., 712X _n (n is an integer of 1 or more) on the (Y-axis direction) are arranged in parallel in the X-axis direction with a predetermined interval therebetween.

In this manner, the position detecting sensor 710 of the position detecting device 700 includes a sensing pattern formed by intersecting the first conductor group 711 and the second conductor group 712 to detect the indication by the electronic pen 1B. The composition of the position.

In addition, in the following description, when it is not necessary to distinguish each conductor for the first conductors 711Y ₁ , 711Y ₂ , ... 711Y _m , the conductor is referred to as a first conductor 711Y. Similarly, for the second conductors 712X ₁ , 712X ₂ , ... 712X _n , when it is not necessary to distinguish each conductor, the conductor is referred to as a second conductor 712X.

The pen detecting circuit 720 is a selection circuit 721 as an input/output interface between the position detecting sensor 710, and an amplifying circuit 722, a band pass filter 723, a detecting circuit 724, and a sample holding circuit 725. And an AD (Analog to Digital) conversion circuit 726 and a control circuit 727 are constructed.

The selection circuit 721 selects one conductor 711Y or 712X from the first conductor group 711 and the second conductor group 712 based on the control signal from the control circuit 727. The conductor selected by the selection circuit 721 is connected to the amplification circuit 722 from the electronic pen 1B. The incoming signal is detected by the selected conductor and amplified by the amplification circuit 722. The output of the amplifying circuit 722 is supplied to the band pass filter 723, and only the components of the frequency of the signal transmitted from the electronic pen 1B are extracted.

The output signal of the bandpass filter 723 is detected by the detector circuit 724. The output signal of the detection circuit 724 is supplied to the sample and hold circuit 725, and is sampled and held at a specific timing by the sampling signal from the control circuit 727, and then by the AD conversion circuit 726. Is converted to a digital value. The digital data from the AD conversion circuit 726 is read and processed by the control circuit 727.

The control circuit 727 operates by transmitting a control signal to the sample and hold circuit 725, the AD conversion circuit 726, and the selection circuit 721 by a program stored in the internal ROM. Further, the control circuit 727 is configured to calculate the position coordinates on the position detecting sensor 710 indicated by the electronic pen 1B based on the digital data from the AD conversion circuit 726, and detect the electronic pen by the electronic pen The pen pressure detected by the pen pressure detection module of 1B.

As a flow of the operation, the control circuit 727 supplies a selection signal to the selection circuit 721, selects each of the second conductors 712X, and reads the data output from the AD conversion circuit 726 as a signal level.

When a signal of a level higher than a specific value is detected from any of the second conductors 712X, the control circuit 727 is detected. The number of the second conductor 712X having the highest signal level and the plurality of second conductors 712X around it are memorized. Similarly, the control circuit 727 controls the selection circuit 721, and the first conductor 711Y of the first conductor 711Y that has detected the largest signal level and the plurality of first conductors 711Y around it. The number is for memory.

Thereafter, the control circuit 727 detects the position on the position detecting sensor 710 indicated by the electronic pen 1B based on the number of the second conductor 712X and the number of the first conductor 711Y which are generally stored as described above. .

Further, the control circuit 727 detects the frequency of the signal from the AD conversion circuit 726, and detects the ON/OFF operation of the side switch 74 based on the detected frequency. Further, the control circuit 727 detects the pen pressure detected by the pen pressure detecting module of the electronic pen 1B based on the frequency of the signal from the AD conversion circuit 726. The control circuit 727 is, for example, provided with information on the correspondence table between the oscillation frequency of the oscillation circuit constituting the signal transmission circuit 101 of the electronic pen 1B and the pen pressure value, and detects the pen pressure based on the information of the correspondence table. value.

Further, in the above-described example, the electronic pen 1B is configured to convert the pen pressure detected by the pen pressure detecting module 6 into a frequency and supply it to the core 9B, but as a corresponding to the pen pressure The signal attribute is not limited to the frequency, and may be configured to match the phase of the signal or the number of times of the signal to the pen pressure.

Further, in the electronic pen 1B having the configuration of the active electrostatic pen of the above-described example, the coil 52 wound around the ferrite core 51 is used. It is a coil for charging, but it may be configured to include a battery (BATTERY) as a supply source of the power supply voltage of the signal transmitting circuit 101. In this case, the ferrite core in which the coil is wound is unnecessary. Further, the switch 77B is provided in such a manner as to control the supply of the power supply voltage from the battery to the signal transmitting circuit 101.

Further, in the electronic pen 1B having the configuration of the active electrostatic pen of the above-described example, the signal transmitting circuit 101 is configured to have only an oscillation circuit, and is configured to transmit the pen pressure as a change in the oscillation frequency thereof. The position detecting device is, however, the signal transmitting circuit can also be constituted by an oscillating circuit and a circuit for specifically modulating the oscillating signal thereof, and the pen pressure information, for example, as the above-mentioned ASK signal, etc. Transfer to the position detection device.

[Other Embodiments or Modifications]

In the electronic pens 1 and 1B of the above-described embodiment, the switches that are switched and controlled by the tapping operation of the tapping bar are one, but they may be plural. In Fig. 10, an electronic circuit of an electronic pen for switching control of two switches by a tapping operation of a tap is shown.

In the electronic pen 1 of the electromagnetic induction system according to the first embodiment, a wireless circuit for wirelessly transmitting identification information of the electronic pen itself is provided, and a driving circuit for generating a driving voltage for the wireless circuit is provided. And configured as a driving circuit for generating a circuit from the driving voltage by a switch that is turned ON and OFF by a tapping operation of a tapping bar The supply of pressure is controlled.

In the same manner as the electronic pen 1 of the first embodiment, the electronic pen 1C of the example of FIG. 10 includes a resonant circuit 1R that is controlled to operate and not operated by the switch 77, and Further, the wireless circuit 121, the ID memory 122, and the driving voltage generating circuit 130 are further provided. The driving voltage generating circuit 130 includes a circuit configuration including an electric double layer capacitor 131 as an example of an electric storage device, a rectifying diode 132, a voltage converting circuit 133, and a capacitor. 134, and switch 77C.

The switch 77C, in this example, is the same surface mount switch as the switch 77, and uses the constant-close type switch shown in Fig. 6(B).

In the electronic pen 1C of this example, when it is mounted on a charger (not shown), an induced magnetic power is generated at the coil 52 by the alternating magnetic field generated by the charger, and is transmitted through the diode 132. The double layer capacitor 131 is charged. The voltage conversion circuit 133 receives the voltage accumulated in the electric double layer capacitor 131 through the switch 77C, converts it into a constant voltage, and supplies it as a power source of the wireless circuit 121 and the ID memory 122.

The ID memory 122 is a non-volatile memory and holds the identification information (ID) of the electronic pen 1C itself. The wireless circuit 121 is the identification information to be stored in the ID memory 122, for example, wirelessly transmitted to the outside in a certain period. The position detecting device used with the electronic pen 1C is provided with a signal received from the electronic pen 1C. The function of identifying information sent by wireless signals.

In the electronic pen 1C of this example, the switch 77 and the switch 77C are arranged side by side in the axial direction on the end portion on the side of the casing portion 4 after the printed circuit board 7 as shown in Fig. 11 . In this case, the switch 77 and the switch 77C are arranged such that the operating elements 77a and 77Ca protrude from the side of the L-shaped cutout portion 7g formed at the end portion of the printed circuit board 7. It is provided on the printed substrate 7. In other words, the switch 77 and the switch 77C are disposed on the printed circuit board 7 such that the operating elements 77a and 77Ca protrude in a direction intersecting the axial direction.

In the electronic pen 1C of this example, the switch control member 142b of the pressing portion member 142 that slides in the axial direction in response to the tapping operation of the striking bar 10 is configured to be able to be cut in the printed substrate 7. In the portion 7g, the operating elements 77a and 77Ca of the switches 77 and 77C which are arranged side by side in the axial direction are displaced in a direction in which the respective faces of the switch 77 and the switch 77 are displaced. force. That is, in this example, the sliding movement distance in the axial direction of the striking rod 10 due to the tapping operation is configured to allow the switching control member 142b to operate the two switching members 77 and 77C. 77a and 77Ca are displaced in a direction toward the inside of the casing to a general distance.

Since it is configured as described above, in the electronic pen 1C of this example, if the knocker bar 10 is pressed, it becomes a locked state that does not protrude from the rear casing portion 4 (Fig. 1(B) and The state shown in Fig. 3(B) is slipped by the axial direction of the switch control member 142b. When the movements are made, the operating elements 77a and 77Ca of the switches 77 and 77C are displaced in the direction of the casing, the switch 77 is in the ON state, and the switch 77C is in the OFF state.

Therefore, the resonant circuit 1R of the electronic pen 1C is in a non-operating state, and at the driving voltage generating circuit 130, since the electrical double layer capacitor 131 and the voltage converting circuit 133 are disconnected, the wireless circuit 121 is And the ID memory 122 is not supplied with a driving voltage, and the wireless transmission system for identifying information is not performed. Therefore, the electronic pen 1C of this example is similar, as shown in FIG. 4(A), in a state in which the striking rod 10 is pushed into the casing portion 4 after the electronic pen 1C. It is housed in the accommodating part of the electric machine.

In addition, charging of the electric double layer capacitor 131 is possible in any of the ON state and the OFF state of the switches 77 and 77C, but the state in which the wireless transmission of the identification information is not performed is performed ( When the switch 77C is in the OFF state, charging can be performed more efficiently.

On the other hand, in a non-locked state (a state shown in FIGS. 1(A) and 3(A)) in which one of the striking bars 10 protrudes from the rear casing portion 4, the switch control member 142b, In a state in which it is not inserted into the cutout portion 7g of the printed circuit board 7, the operating elements 77a and 77Ca of the switches 77 and 77C are in a state of protruding from the outside of the frame, and the switch 77 is turned OFF ( In the ON state, the switch 77C is in the ON state.

Therefore, the resonant circuit 1R of the electronic pen 1C becomes an action In the state, and at the driving voltage generating circuit 130, since the electrical double layer capacitor 131 and the voltage converting circuit 133 are connected, the driving voltage is supplied to the wireless circuit 121 and the ID memory 122, The identification information is sent wirelessly. Therefore, in the case of the electronic pen 1C of this example, when a position indication is used for the position detecting device, a part of the striking stick 10 protrudes from the casing portion 4 after the electronic pen 1C. In the return state, the operating elements 77a and 77Ca of the switches 77 and 77C are in a state where no force is applied from the outside.

As described above, in the electronic pen 1C, switching control can be simultaneously performed for the two switches 77 and 77C, and the axis of the switch control member 142b is the same as that of the electronic pens 1 and 1B of the above-described embodiment. The force of the axial direction caused by the sliding movement of the direction is not directly applied to the frame of the switches 77 and 77C, so that the switches 77 and 77C and the like can be alleviated or avoided. The problem of poor electrical connection between the printed boards 7 is problematic.

In addition, in the example of Fig. 11, since the two switches 77 and 77C are arranged side by side in the axial direction on the printed circuit board 7, there is a need for the action elements for the two switches 77 and 77C. The problem that the sliding movement distance of the axial direction of the switch control member 142b controlled by 77a and 77Ca is increased. In Fig. 12, an example of improvement is shown.

In the example of FIG. 12, as shown in FIG. 12(B), the switch 77 is disposed on the surface of the substrate on the surface side of the printed substrate 7. The switch 77C is disposed on the substrate surface on the back side of the printed circuit board 7. In this case, as shown in FIG. 12(A), the switch 77 and the switch 77C are disposed on the printed circuit board 7 so as to have the same position in the longitudinal direction of the printed circuit board 7. On the back of the substrate surface.

In the electronic pen 1C of this example, the pressing portion member 142C that slides in the axial direction in response to the tapping operation of the striking stick 10 is configured to correspond to that shown in FIG. 12(A). Two switches 77 and 77C are provided with two switch control members 142b1 and 142b2. The switch control members 142b1 of the two switch control members 142b1 and 142b2 are configured to open the switch on the surface side of the printed circuit board 7. The operation element 77a of the 77 is displaced, and the switch control member 142b2 is configured to displace the operation element 77Ca of the switch 77C on the back side of the printed circuit board 7.

In the example of Fig. 12, also in the same manner as in the example of Fig. 11, by the tapping operation of the striking rod 10, as in the foregoing, the switches 77 and 77C are switched and controlled, and perform the same functions as described above. effect. However, in the case of the example of FIG. 12, the sliding movement distance in the axial direction caused by the tapping operation of the striking rod 10 is only required to be shorter than the case of the example of FIG. However, there is an effect that only the same distance as in the case of the first embodiment or the second embodiment described above is required.

In the example of FIGS. 11 and 12, the two switches 77 and 77C are interlocked by the tapping operation of the striking stick 10. Although the switching control is performed, the switch 77 and the switch 77C may be independently switched and controlled. Fig. 13 is a view showing a configuration example of an important part of the electronic pen constituted as such.

As shown in Fig. 13, in the same manner as in the example of Fig. 12, a switch 77 and a switch 77C are disposed on the surface of the front surface of the printed circuit board 7. In the example of Fig. 13, the tapping mechanism is configured to be divided into the first tapping mechanism and the second striking mechanism in response to the switch 77 and the switch 77C. That is, the switch 77 is provided with a first tapping mechanism formed by the striking rod 10A, the rod-shaped body 141A, and the pressing portion member 142A, and the switch 77C is provided with the striking rod 10B and The second knocking mechanism formed by the rod body 141B and the pressing portion member 142B. For example, the first striking mechanism and the second striking mechanism are configured to have the same configuration as the striking mechanism of the multicolor pen.

Further, by performing a tapping operation on the striking stick 10A, the first striking mechanism interactively presents a locked state and a restored state, and the switch 77 is subjected to switching control. Further, the knocking operation is performed on the striking stick 10B, and the second striking mechanism interactively exhibits a locked state and a restored state, and the switch 77C is switched.

Further, of course, in the electronic pen using two switches, the function of switching control by the two switches is not limited to the example of FIG. For example, in the electromagnetic induction type electronic pen according to the first embodiment, the pen pressure information detected by the pen pressure detecting module 6 can be configured, for example, to use Bluetooth (registered trademark) regulations. The wireless communication means sends the signal to the side of the position detecting device, and is configured to control the action and non-action of the resonant circuit by one of the two switches, and by the other one, The operation and non-action of the wireless communication means are controlled.

In the above example, the case where the opening relationship is switched by the tapping mechanism is two. However, even if the opening relationship is three or more, the same can be applied. For example, in the example of FIG. 11, three or more switches are arranged side by side in the axial direction, and a switch control member that slides in the axial direction in response to the tapping operation of the striking bar is used. The moving distance can be adjusted by matching the number of switches.

Further, when three or more switches are used, by combining the example of Fig. 11 and the example of Fig. 12, it is possible to slide in the axial direction in response to the tapping operation of the tapping rod. The moving distance of the moving switch control member is set to be shorter than in the case of the example of FIG.

In the above example, the protruding direction of the operating element of the switch that is switched by the tapping mechanism is intersected with the axial direction of the sliding movement of the switch control member (in the above example, The direction of the orthogonal). However, by generally configuring as shown in Fig. 14, even when the operating element of the switch protrudes in the axial direction, the electronic pen resulting from the present invention can be constructed.

That is, in the example shown in Fig. 14, the switch 77D of this example is as shown in Fig. 14(A) so that the action element 77Da protrudes from the side of the casing portion 4 in the axial direction. Way to configure On the printed substrate 7. Moreover, the pressing portion member 142C in this example is formed by the fitting portion 142a fitted to the rod-shaped body 141 and the switch control member 143 integrally formed at the fitting portion 142a.

The switch control member 143 is formed of the same rod-like piece 1431 as the control unit 142b of the above-described first embodiment and the operating element control member 1432 joined to the rod-shaped piece 1431. In this example, the operating element control member 1432 is joined to the rod-shaped piece 1431 at the one end side 1432a side in the longitudinal direction thereof, and is configured to be capable of being joined to the other end 1432b side in the longitudinal direction. It is separated from the rod piece 1431.

Further, the operating element control member 1432 is constituted by a member having elasticity, for example, by a resin having elasticity, and by its elastic force, generally, as shown in Fig. 14(A), it is configured such that All of them are locked along the rod piece 1431.

On the other hand, if the striking bar 10 is pressed and the rod piece 1431 of the switch control member 143 of the pressing portion member 142 is slidably moved so as to be inserted into the cutout portion 7g of the printed circuit board 7, the sliding movement is performed. At the time, the front end of the operating element control member 1432 is in contact with the end surface of the thickness portion of the switch 77D, and the other end 1432b side of the operating element control member 1432 is separated from the rod piece 1431. Thereafter, the other end 1432b of the separated action element control member 1432 is displaced as shown in Fig. 14(B) such that the action element 77Da of the switch 77D is oriented in the direction of the housing housed in the switch 77D. The mode works, and therefore, the switch 77D is switched.

Further, if the rod piece 1431 of the switch control member 143 is returned to the state shown in Fig. 14(A) by the next tap operation, the action element control member 1432 is as shown in Fig. 14(A). As shown in the figure, in the state of being locked along the rod-like piece 1431, the operating element 77Da of the switch 77D is also returned to the state of being protruded to the outside.

In the same manner as in the case of FIG. 14, even in the state in which the operating element 77Da of the switch 77D is disposed on the printed circuit board 7 in a state of being protruded in the axial direction, the same is true. With respect to the operating element 77Da, a force in a direction intersecting the displacement direction of the operating element is applied by the operating element control member 1432, and the switch 77D is switched. In this case, by the elastic force of the operating element control member 1432, a force in the axial direction is applied to the frame of the switch 77D, but the force in the axial direction is only the action. The element control member 1432 is a small force that is locked along the rod piece 1431, and therefore is small compared to the force of the axial direction due to the sliding movement of the rod piece 1431 in the axial direction. .

Therefore, in the case of the example of Fig. 14, the example of the axial direction directly applied to the frame of the switch 77D is also reduced, so that the switch 77D is printed. The problem of peeling off of the substrate 7 is alleviated.

[Other Modifications]

Further, in the above-described embodiment, the pressure sensitive portion 61 of the writing pressure detecting module 6 uses a variable capacity capacitor to make the frequency of the resonant circuit. The rate is a variable configuration. However, it is a matter of course that the configuration may be such that the inductance value of the resonance circuit is made variable in response to the writing pressure.

In the above-described embodiments and modifications, when the lock operation is performed by the tapping operation, the system is in a non-use state, and is housed in the electronic device, and is set by the tapping operation. In the return state, it is in a use state in cooperation with the position detecting device of the electronic device. However, this configuration is for preventing the protrusion of the striking rod when the electronic pen is housed in the accommodating portion of the electronic device, and the ease of taking out when the electronic pen is taken out from the accommodating portion is considered. Adopted. Of course, the electronic pen of the present invention may be configured to be in a non-use state when set to a return state by a tapping operation, and to be in a locked state by a tapping operation. A state of use in cooperation with a position detecting device of an electronic device.

Further, in the electronic pen according to the above-described embodiment, the cross-sectional shape of the casing is flat, but the shape is not limited thereto, and of course, the cross-sectional shape may be circular.

Further, the electronic pen of the above-described embodiment is configured to include a pen pressure detecting module and a side switch. However, the pen pressure detecting module and the side switch are not the electronic pen of the present invention. The necessary composition, of course, may not be the composition of such components.

[Other application examples]

In the first embodiment, the number of the striking bars 10 is one, and it is configured to respond to the locking state and the returning state caused by the tapping operation thereof. In the state, the resonant circuit is set to an operating state or to a non-operating state. However, the present invention is not limited thereto, and may be configured to change the resonance frequency of the resonant circuit in response to the locked state and the restored state caused by the tapping operation of one tapping bar.

For example, the example shown in (A) of FIG. 15 is an example of the configuration. In this example, the coil 52 and the capacitor 73 are connected in parallel, and are connected in response to the tapping operation. The series circuit of the OFF switch 77E and the capacitor 79. In this case, when the lock operation is performed by the tapping operation, for example, the switch 77E is OFF, and the resonance circuit is constituted by the coil 52 and the capacitor 73, and is set to the resonance frequency fa, and When the cancel state is reached, the switch 77E is turned ON, and the resonant circuit is constituted by the coil 52, the capacitor 73, and the capacitor 79, and the resonance frequency is fb (≠fa). At the position detecting device, when the signal of the frequency sent from the electronic pen is detected, for example, if the frequency of the detected signal is fa, the electronic pen will be applied to the application. The resulting drawing input is expressed in black, and if the frequency of the detected signal is fb, the drawing input by the electronic pen is expressed in red on the application.

Further, the position detecting device may not be a difference in the frequency of the electronic pen to be used as the difference in the color of the electronic pen, but may be configured as the thickness of the line or as a real It is detected by the difference in the type of line such as a line, a dotted line, or a chain line.

Further, in the case of the electronic pen having the first tapping mechanism and the second striking mechanism as in the example of Fig. 13, it may be The general circuit configuration shown in Fig. 15 (B). That is, in this example, in series with the coil 52 and the capacitor 73, a series circuit of the switch 77F and the capacitor 791 which are turned ON and OFF in response to the tapping operation at the first tapping mechanism is connected. And a series circuit of the switch 77G and the capacitor 792 that are turned ON and OFF in response to the tapping operation at the second tapping mechanism.

In the case of the electronic pen of the example of FIG. 15(B), the ON and OFF states of the switch 77F and the switch 77G corresponding to the tapping operation of the first tapping mechanism and the tapping operation of the second tapping mechanism are based on the tapping operation of the first tapping mechanism and the tapping operation of the second tapping mechanism. The combination of the electronic pen's resonant circuit can be switched to four different resonant frequencies, and the electronic pen is capable of transmitting signals of the four frequencies. Therefore, in the position detecting device, for each of the four types of signals from the electronic pen, for example, four types of black, red, blue, and eraser can be assigned. The function.

Further, in the above-described example, when the operation member is one as in the first embodiment or the second embodiment, or a plurality of switches and the like are arranged as in the example of FIG. In the case where the plurality of operation members correspond to the plurality of operation members, the protruding portion of each of the operation members is configured to protrude from the opening portion of the end portion of the cylindrical frame 2 opposite to the nib side. The protruding portion of the operation member is not limited to being protruded from the opening side of the end portion of the cylindrical frame in the axial direction. For example, the opening that protrudes from the protruding portion of the operating member may be disposed on the circumferential side surface of the casing 2 opposite to the nib side. In this case, the general configuration is as follows: that is, the opening of the peripheral side of the frame The long hole in the axial direction is slidably moved in the axial direction by pressing the protruding portion on one side, and the sliding member of the operating member connected to the protruding portion is slid, whereby the sliding member slides, The action elements of the corresponding switches are displaced.

Similarly to the above, the switching of the switch by the striking mechanism of the electronic pen of the present invention can be utilized to change the recognition state of the electronic pen in the application of the position detecting device.

1, 1B, 1C‧‧‧ electronic pen

2‧‧‧Shell

3‧‧‧Front casing

4‧‧‧ Rear casing

4a‧‧‧ Combined with the tubular part

5‧‧‧Magnetic core coil

6‧‧‧ Pen pressure detection module

7‧‧‧Printed substrate

7a‧‧‧Substrate surface

7b‧‧‧End

7g‧‧‧cutting

9‧‧‧ core

10‧‧‧Knocker

10c‧‧‧锷

14‧‧‧Sliding members

21, 22‧‧‧ plane

31‧‧‧ openings

32‧‧‧Steps Department

51‧‧‧ Ferrite core

52‧‧‧ coil

53‧‧‧Protection cap

61‧‧‧The Ministry of Pressure

62‧‧‧Support Department

63‧‧‧ engaging members

73‧‧‧ Capacitors

74‧‧‧ side switch

76‧‧‧ Press the operating element

77‧‧‧ switch

77a‧‧‧Action elements

81b, 81c, 81d‧‧‧ protrusion

91‧‧‧ core body

92‧‧‧ front end

Claims (15)

An electronic pen comprising: a cylindrical frame; and a printed circuit board having a substrate surface in a direction parallel to an axial direction of the cylindrical frame, and being The switch is disposed in a hollow portion of the tubular frame, and the switch includes an operation member that is displaced from the switch housing and is housed in the switch housing to switch the switch state. And operating as one of the electronic circuits disposed on the substrate surface of the printed circuit board; and the operating member is provided with a protrusion protruding from the side of the opening opposite to the pen tip side of the cylindrical frame body a sliding member that moves toward the tip end side in the axial direction in the cylindrical frame by pressing the protruding portion; and a locking mechanism for each of the operating members When the protruding portion is pressed in the axial direction, the locking member is held in a locked state in which the sliding member is moved to the pen tip side, and the sliding member is moved to the aforementioned In the return state of the state before the tip side, the sliding member includes a switch control member that slides along the inner wall surface of the cylindrical frame to displace the operating element of the switch, and borrows in the locked state. The operation of the specific circuit is maintained by the control of the switch control means, and the operation of the specific circuit is released by the control of the switch control means in the recovery state. An electronic pen as recited in claim 1 of the scope of the patent application, wherein The switch control member of the sliding member slides along an inner wall surface of the cylindrical casing, and applies a force in a direction intersecting with a displacement direction of the operating member to the operating member to cause the switch The motion element is displaced. The electronic pen according to the first aspect of the invention, wherein the printed circuit board is placed in a hollow portion of the tubular frame body so that the substrate surface is aligned along an axial direction of the frame body. The switch is configured such that the operating element is displaced in a casing of the switch by a force applied from the outside, and is in the ON state or the OFF state before the displacement. When one of the states is switched to the other state, and when the force applied from the outside disappears, the person is returned in such a manner as to switch to the state before the displacement. The electronic pen according to the first aspect of the invention, wherein the switch is disposed such that the operating element protrudes in a direction intersecting an axial direction of the cylindrical frame. In the printed circuit board, when the switching control member is in the locked state, the moving member is applied to the operating member of the switch in response to the sliding movement of the sliding member in the axial direction of the operating member. The force in the direction of the direction of displacement. The electronic pen according to the fourth aspect of the invention, wherein the cutting portion of the printed circuit board opposite to the pen tip side of the casing is formed with a cutout portion in the axial direction. Further, the switch is disposed such that the operating element protrudes from the cutout portion in a general state, and is disposed on an opening side of the printed circuit board opposite to the pen tip side of the housing, and the switch control member The portion that slides in the axial direction is configured to slide in the axial direction at the cutout portion of the printed circuit board. The electronic pen according to the fourth or fifth aspect of the invention, wherein the frame body is formed of a flat cylindrical body, and the printed circuit board is formed so as to be flat in a hollow portion of the frame body. The direction in which the long side is formed in the cross section is a wide direction, and is disposed in the aforementioned frame. The electronic pen according to the first aspect of the invention, wherein the switch is disposed on the printed circuit board such that the operating element protrudes in a direction of an axial direction of the cylindrical frame. The switch control member is provided with a member that moves in a direction intersecting the axial direction in response to a sliding movement of the sliding member of the operating member in the axial direction when the locked state is established. The member that moves in a direction intersecting the axial direction applies a force in a direction intersecting the displacement direction of the operating element with respect to the operating element of the switch. The electronic pen according to claim 1, wherein when the position indication of the position detecting sensor is performed, the sliding member of the operating member is set to the returning state, and the position detecting is not performed. The sliding member of the aforementioned operating member when the position of the sensor is indicated It is set to the aforementioned lock state. The electronic pen according to claim 1, wherein a magnetic core to which a coil is wound is disposed between the pen tip side and the printed circuit board. The printing substrate and the magnetic core are in the frame by engaging an end portion of the magnetic core with the tip end side of the cylindrical body on a stepped portion of the inner wall of the pen tip side The position of the axial direction of the body is limited. The electronic pen according to claim 8, wherein the printed circuit board is provided with a capacitor that forms a resonant circuit together with the coil, and the switch is configured such that the sliding member of the operating member is provided. In the case of the locked state, the resonant circuit is brought into an operating state, and is switched, and when the sliding member of the operating member is set to the returning state, the resonant circuit is in a non-operating state. And was switched. The electronic pen according to claim 1, wherein a power source is disposed in the tubular casing, and the printed circuit board is mounted on the printed circuit board. An electronic circuit driven by a power supply voltage, wherein the switch interrupts supply of a power supply voltage from the power source to the electronic circuit when the sliding member of the operating member is set to the locked state And switching, and when the sliding member of the operating member is in the recovery state, the supply of the power supply voltage from the power supply circuit to the electronic circuit is performed. And was switched. The electronic pen according to claim 11, wherein the electronic circuit includes a signal transmitting circuit, and a conductive core is disposed at a nib side of the cylindrical frame. The signal from the signal transmitting circuit is sent out from the conductive core. The electronic pen according to claim 1, wherein the plurality of switches that are switched to the ON state and the OFF state by the operation member are plural. The electronic pen according to claim 13, wherein the plurality of switches are disposed on a surface and a back surface of the printed wiring board. An electronic pen according to claim 1, wherein the two operation members are provided, and two switches are provided on the printed circuit board, and the two operation members are provided by the two operation members. One of the switches of the two switches is switched to the ON state and the OFF state, and the other of the two switches is switched to the ON state by the other of the two operation members. And OFF state.