CN1185569C - Input device - Google Patents

Abstract

The invention relates to an input device having a rotary electrical element with terminals (5, 6, 7) and a circuit substrate (22) connected to the terminals (5, 6, 7). Forming a remaining portion (5a, 6a, 7a) on the terminal (5, 6, 7); the rotary electric element (1) is mounted on a circuit board (22) by means of mounting legs (19 b). When the rotary electric element (1) is tilted by operating the operating shaft (29), the remaining portions (5a, 6a, 7a) are deflected.

Description

input device

technical field

The invention relates to an input device for controlling scrolling of pictures on a display by utilizing the rotation of a rotating member.

Background technique

In the past, this well-known input device utilizes the rotation of the rotary member of the rotary electric device to control the scrolling of the screen on the display.

Hereinafter, a prior art in which a rotary encoder is used as an input device for the above-mentioned rotary electric component will be described with reference to FIGS. 20 to 23 .

In this input device, a rotary encoder 41 is mounted on a circuit board 54 . The rotary encoder 41 consists of a rotary member 46 with a detected body, a support member 42 with a detection body, and an index plate 52 elastically connected to the rotary member 46. The rotary member 46, the support member 42 and the index plate 52 are fixed. Into an integral mounting plate 53 constitutes. The rotary member 46 is rotatably supported on a fixed member composed of the support member 42 , the index plate 52 and the mounting plate 53 .

The support member 42 is formed as a pentagonal insulating synthetic resin substrate with an engaging hole 43 formed in its central portion. A detection body 44 composed of three conductive metal elastic pieces 44a, 44b, 44c and terminals 45a, 45b, 45c respectively connected to these conductive metal elastic pieces 44a, 44b, 44c are inserted into the supporting member 42.

The rotary member 46 is made of a disc-shaped insulating synthetic resin, and at its central portion, a rotary shaft 47 is integrally formed therewith. One end of the rotary shaft 47 has a flat portion on its inner peripheral surface for insertion into a hole 48 of a manipulation shaft 60 described later, extending in the direction of the rotary axis R through the other end of the rotary shaft 47 . In addition, in order to avoid contact with the shaft 60 when the manipulation shaft 60 is toppled, a large-diameter hole 48a having a diameter larger than that at one end is formed at the other end of the hole 48 . On the rotary member 46 , a ring-shaped conductive plate (not shown) is buried, and a plurality of conductive portions 49 as a part of the conductive plate are exposed on the surface of the rotary member 46 . The objects to be detected 50 are arranged at equal intervals on concentric circles centered on the rotary shaft 47 . In addition, on the entire inner surface of the rotary member 46, a radial concave-convex portion 51 composed of a plurality of concave-convex portions radially extending around the lower rotary shaft 47 is formed. One end of the rotating shaft 47 of the rotating member 46 is inserted into the engagement hole 43 of the supporting member 42, and the plurality of conductive parts 49 are in sliding contact with the three conductive metal elastic pieces 44a, 44b, 44c.

The index plate 52 is made of a metal plate spring and is press-worked, and a protruding portion 52 a elastically contacting the radial concave-convex portion 51 of the rotary member 46 is formed at the front end thereof.

The mounting plate 53 is made into a C-shaped section by bending a metal rectangular plate at right angles on both sides. It has four claws 53a and two mounting feet 53b, and an engaging hole 53c made by punching and deburring. In addition, the mounting plate 53 is placed on the inner surface of the rotary member 46 in a state where the rear end of the index plate 52 is fixed to the inner surface of the mounting plate. The other end of the rotary shaft 47 is inserted into the engaging hole 53c; and the four claws 53a are bent over to clamp the rotary member 46, the support member 42 and the index plate 53 so that they are fixed as a whole. The protruding portion 52 a of the index plate 52 is located in the concave portion of the radial concave-convex portion 51 of the rotary member 46 .

Thus, a fixed member composed of the support member 42, the index plate 52 and the mounting plate 53 is formed. The rotary member 46 is inserted into the engaging holes 43, 53c with a rotary shaft 47, and is rotatably supported on the fixed member. In addition, the detection body 44 composed of three conductive metal elastic pieces 44a, 44b, 44c and the detection body 50 composed of a plurality of conductive parts 49 constitute a pulse signal generation part that generates a pulse signal by the rotation of the rotation member 46.

On the circuit board 54, a terminal insertion hole 54a, a mounting hole 54b and a blank hole 54c are formed. The push switch 55 is sandwiched in this empty knife hole 54c, and is mounted at a position opposing the terminal insertion hole 54a and the mounting hole 54b. The structure of the push switch 55 is as follows: on the body 56 connected and fixed with the circuit board 54, an actuator 56a is arranged, and at one end of the body 56, a coil spring 57 is installed, and at the other end of the body 56 A shaft support portion 58 having an elongated hole 58a opened at the upper end is formed thereon.

In this way, the rotary encoder 41 constituted as above can be connected with the push switch 55 by welding the terminals 45a, 45b, 45c inserted into the terminal insertion hole 54a and the mounting hole 54b with the two mounting feet 53b. The terminals 45 a , 45 b , and 45 c mounted oppositely on the circuit board 54 are electrically connected to the circuit board 54 .

In addition, between the rotary encoder 41 and the push switch 55, a disk-shaped operating member 59 is arranged, and a part of the operating member is located in the above-mentioned empty hole 54c. The manipulation shaft 60 passes through the center of the manipulation member 59 and is fixed together with the manipulation member; both ends of the manipulation shaft are inserted into the hole 48 of the rotary member 46 and the long hole 58a of the push switch 55 . The control shaft 59 and the rotary member 46 rotate integrally, and the control shaft can only perform tilting motion in the up and down directions (arrow B, C directions) of the elongated hole 58a with one end of the rotary shaft 47 as a fulcrum.

In addition, at one end of the manipulation shaft 60, a sleeve 61 is fitted. The coil spring 57 and the actuator 56 a are in contact with the sleeve 61 to keep the manipulation shaft 60 parallel to the circuit board 54 . The sleeve 61 is opposite to the body 56 of the push switch 55 , with a distance of H between each other; and the distance between one end of the body 56 and one end of the rotary shaft 47 of the rotary member 46 is set as L1.

In this state, when the operator rotates the manipulator 59 with his fingers, the protruding portions 52a of the index plate 52 elastically contact with the concavo-convex portions of the radially concavo-convex portion 51 alternately, producing a "click" sound. Simultaneously, since the rotary member 46 is integrated with the manipulation shaft 60 and rotates in the same direction with the manipulation piece 59, along with the rotation of the rotary member 46, the three conductive metal elastic pieces 44a, 44b, 44c contact with a plurality of conductive parts 49. and leave, generating a pulse signal. This pulse signal is output from the terminals 45 a , 45 b , and 45 c as a rotation amount detection signal of the manipulation member 59 , and sent to the circuit board 54 . At this time, since the manipulation shaft 60 and the flat portion and the plane formed on the inner peripheral surface of the hole 48 are engaged with each other, the rotary member 46 and the manipulation shaft 60 can be connected without looseness. Thus, the rotation of the operating member 59 can be reliably transmitted to the rotary member 46 .

In addition, when the operator presses the operating member 59 with his fingers, as shown in Figure 23, the operating shaft 60 takes one end of the above-mentioned rotary shaft 47 as a fulcrum, and one end of the sleeve 61 is embedded in it, and overcomes the elastic force of the coil spring 57, and moves along the direction indicated by the arrow. C direction down a distance of H and dumped. In this way, the sleeve 61 presses the actuator 56a of the push switch 55, and the on-off state of the push switch 55 is switched. The ON/OFF signal of the push switch 55 is input to the circuit board 54 . At this time, the inclination angle of the steering shaft 60 is θ=tan ^-1 (H÷L1), and the other end of the steering shaft 60 is moved in the radial direction by L3×tanθ in the hole 48a. As described above, since the steering shaft 60 and the planes of the hole 48 are engaged with each other, in association with the tilting of the steering shaft 60, the swivel member 46 is also tilted. Thus, the rotating member 46 and the bearings of the mounting plate 53 that rotatably supports the rotating member 46 are subjected to a large load. When the operator stops pressing the operating member 59, the elastic force of the coil spring 57 makes the operating member 59 and the operating shaft 60 return to the state before pressing (arrow B direction).

The detection signal of the amount of rotation of the manipulator 59 in the input circuit board 54 and the on and off signals of the push switch 55 are input to the circuit board 54 after the calculation of the CPU not shown in the figure, and then input to the circuit board 54, which is not shown in the figure. The display device can control the scrolling of the screen or the cursor on the display not shown in the figure.

Next, a method of assembling the rotary encoder 41 will be described. First, in the fixing step, a member for fixing the index plate 52 to the inner surface of the mounting plate 53 by an appropriate method such as bonding is prepared in advance. In addition, in the assembly process, the other end of the rotary shaft 47 of the rotary member 46 is inserted into the engaging hole 53c of the mounting plate 53, and then the three conductive metal elastic pieces 44a, 44b, 44c are opposed to the conductive part 49, and the support The member 42 is capped on the rotary member 46 so that one end of the rotary shaft 47 is inserted into the engagement hole 43 . Then, the four claws 53a of the mounting plate 53 are bent onto the support member 42, and the rotary member 46, the support member 42 and the index plate 52 are clamped, and the assembly of the rotary encoder 41 is completed.

However, in the input device of the above-mentioned prior art, as shown in FIG. 23, when the manipulation shaft 60 is tilted, at the contact points of the hole 48 of the rotary member 46 and the other end of the manipulation shaft 60, there are upward forces F3 respectively. And downward force F4 acts on one end of the rotary shaft 47 . Because of this, there is a torque acting on the rotary encoder 41, so that the rotary encoder 41 falls in the direction of the arrow A. As a result, the load acting on the terminals 45a, 45b, 45c and the soldered portion 62 (connection portion) of the circuit board 54 increases, and the connection between the terminals 45a, 45b, 45c and the circuit board 54 may be broken.

In addition, the manipulation shaft 60 is subjected to the reaction forces of the forces F3 and F4, and cannot be tilted smoothly.

In addition, because the steering shaft 60 rotates together with the rotating member 46, and because the size of the hole 48 of the rotating shaft 47 is approximately equal to the shape of the steering shaft 60, the other end of the steering shaft 60 is not easily inserted into the hole 48 of the rotating shaft 47. Therefore, in the work of inserting the steering shaft 60 into the hole 48, the man-hours for assembly are increased.

In addition, the large-diameter portion 48a of the hole 48 is necessary to avoid contact with the shaft 60 when the steering shaft 60 is tipped over, which increases the size of the rotary member 46 and increases the size of the input device 41 .

In addition, since a component for fixing the mounting plate 53 and the indexing plate 52 must be prepared in advance during assembly, the bonding work must be carried out before the assembly process, which results in poor workability and lengthens the entire manufacturing process.

Furthermore, when the installation position of the indexing plate 52 on the inner surface of the mounting plate 53 deviates, the position of the “click” sound obtained by the elastic contact between the protruding portion 52a of the indexing plate 52 and the concave-convex portion 51 of the radial concave-convex portion 51 A deviation is also generated, so that it is impossible to output the detection signal and timing of the rotation amount of the above-mentioned manipulator. Therefore, the mounting accuracy of the indexing plate 52 on the inner surface of the mounting plate 53 must be very high, which makes the positioning of the indexing plate 52 very troublesome, increases the assembly man-hours, and increases the manufacturing cost.

Contents of the invention

The present invention is proposed in consideration of the problems of the prior art, and its purpose is to provide a method that can eliminate the load on the connecting part of the terminal and the circuit board when the rotary electric component is toppled over, so that the terminal and the circuit board can be kept in place. Input devices with good connection status. Another object of the present invention is to provide a control shaft that is easy to insert, can reduce the force generated at the contact point between the hole of the rotary member and the control shaft when the control shaft is tilted, and allows the control shaft to fall smoothly. Small input device. Still another object of the present invention is to provide a rotary electrical component in which the mounting position of the index plate can be easily determined by eliminating the fixing process before the assembly process.

In order to achieve the above object, the input device of the present invention has the following structural members: a fixed member and a rotary member rotatably supported on the fixed member; a rotary electrical element having a terminal for outputting an electrical signal generated by the rotation of the rotary member ; connected with the above-mentioned terminal, the circuit substrate for inputting the above-mentioned electrical signal; extending along the axis direction of the above-mentioned rotary member, and engaging with one end of the above-mentioned rotary member, so as to make the rotary member rotate; the control shaft installed on the above-mentioned control shaft; And a portion provided on the terminal that bends when the rotary electric component is toppled by pressing in a direction perpendicular to the axes of the operating member and the rotary member.

Therefore, when the manipulator is pressed in a direction perpendicular to the axis of the rotary member, since the terminal flexure part is deflected, the rotary electric component is toppled, and a large stress is hardly applied to the connecting portion between the terminal and the circuit board, and it is possible to The terminals and circuit boards are well connected, and the actuator can be pressed smoothly.

In addition, a mounting plate is provided on the above-mentioned fixing member to install the above-mentioned rotary electric component on the above-mentioned circuit board; on the mounting plate, an extension part connected with the above-mentioned circuit board is made; by pressing the above-mentioned operating member, the above-mentioned rotary The type electric component can be tilted from the contact part of the above-mentioned extension part and the above-mentioned circuit board as a fulcrum.

Therefore, since the rotary electric component can be tilted down smoothly by using the contact portion as a fulcrum, the manipulation member can be pressed smoothly.

In addition, in the above structure, the extended portion of the mounting plate is in contact with the board surface of the circuit board.

Therefore, the rotary electric component can be tilted down with a simple structure without welding.

In addition, in the above structure, the terminal is provided with a surplus portion, and the flexure portion is formed using the surplus portion.

Therefore, the rotary electric component can be tilted smoothly.

In addition, in the above-mentioned structure, the above-mentioned remaining portion of the above-mentioned terminal is bent in a C-shape.

Therefore, the rotary electric component can be tilted smoothly.

In addition, in the above-mentioned structure, the C-shaped opening of the above-mentioned remaining part faces the above-mentioned operating member.

Therefore, the rotary electric component can be tilted smoothly.

In addition, in the above configuration, a plurality of the terminals are provided, and the plurality of terminals are arranged on one surface perpendicular to the rotation axis of the steering shaft and protrude from the fixing member toward the circuit board.

Therefore, by pressing the operating member, the rotary electric component having a plurality of terminals can be smoothly toppled.

In addition, in the above configuration, there is a push switch that is driven by pressing the manipulation member.

Therefore, multiple inputs can be made.

In addition, in order to achieve the above object, the input device of the present invention has the following structural members: a fixed member, rotatably supported on the fixed member, a rotary member with a hole extending in the direction of the axis of rotation; the output is generated by the rotation of the rotary member A rotary electrical component for an electrical signal; one end is engaged with the hole of the above-mentioned rotary member to make the rotary member rotate; a control member installed on the above-mentioned control shaft; the above-mentioned hole has a connection with one end of the above-mentioned control shaft for The polygonal hole on the above-mentioned manipulator, and a part of the hole connected with the polygonal hole, which is larger than the diameter of the polygonal hole; on the inner peripheral surface of the above-mentioned polygonal hole, a The tapered portion at the other end has a gradually smaller hole diameter; a step is formed between the polygonal hole and the large-diameter hole.

Therefore, since one end of the operating shaft is engaged with the center of the rotating member, the angle at which the operating shaft is tilted is smaller than that of the prior art; The force can be reduced and the operating member can be pressed smoothly. At the same time, the size of the above-mentioned rotary member can be reduced, and thus, the size of the input device can be reduced. In addition, the steering shaft guided in the tapered portion fits into the above-mentioned hole, so that assembly is easy.

In addition, in the above structure, the included angle between the above-mentioned tapered portion and the above-mentioned rotation axis is 3°.

Therefore, when the manipulation member is pressed to tilt the manipulation shaft, the tapered portion can stably support the manipulation shaft.

In addition, in the above structure, the polygonal holes are hexagonal.

Therefore, at any rotation angle position of the rotation member, the steering shaft can be tilted smoothly.

In addition, in order to achieve the above object, in the present invention, a through hole penetrating along the direction of the rotation axis of the rotation member is formed on the position of the fixing member deviated from the outer surface of the rotation member.

Therefore, input devices such as encoders can be assembled as long as the components of the fixed member and the rotary member are sequentially installed on the jig, and the production efficiency is improved.

In addition, the above-mentioned fixing member is composed of a support member, an index plate that produces a "click" sound feeling by the rotation of the above-mentioned rotating member, and in a state where the above-mentioned support member and the above-mentioned index plate are overlapped, the above-mentioned one member is superimposed on the The above-mentioned indexing plate is fixed to form an integral mounting plate.

Therefore, only by inserting the jig into the through hole, the installation position of the index plate on the mounting plate can be determined, and no positioning work between the index plate and the mounting plate is required, and productivity can be improved.

In addition, the above-mentioned fixing member is formed with two of the above-mentioned through holes.

Therefore, the mutual positions of the constituent parts of the fixing member, especially the positioning of the index plate and the mounting plate can be ensured with high precision.

In addition, on the above-mentioned mounting plate, on both sides of the above-mentioned through-hole, make two fixing holes facing each other outside the above-mentioned through-hole; at the same time, on the above-mentioned supporting member, make two protrusions fixed with the two holes. part.

Therefore, after assembly, the installation position of the support member with respect to the installation board will not deviate.

In addition, on the above-mentioned mounting plate, on both sides of the above-mentioned through hole, two fixing holes are made outside the above-mentioned through hole and opposite to each other; There are three through fixing holes; at the same time, on the above-mentioned supporting member, two protrusions are made to be inserted and fixed in the two fixing holes of the above-mentioned mounting plate and the indexing plate.

Therefore, after assembly, the installation position of the index plate on the mounting plate will not be shifted.

Description of drawings

Fig. 1 is the front view of the rotary electrical element of the input device of the present invention;

Fig. 2 is a side view of the rotary electrical component of the input device of the present invention;

Fig. 3 is a cross-sectional view taken along line 3-3 of Fig. 1;

4 is a view of the inner surface of the supporting member included in the rotary electric element of the input device of the present invention;

Fig. 5 is a side view of the supporting member included in the rotary electric element of the input device of the present invention;

Fig. 6 is a front view of the rotary member of the rotary electrical component of the input device of the present invention;

Fig. 7 is a side view of the rotary member included in the rotary electrical component of the input device of the present invention;

8 is a view of the inner surface of the rotary member of the rotary electrical element of the input device of the present invention;

Fig. 9 is a sectional view taken by line 9-9 in Fig. 6;

10 is a front view showing a state in which a slider is mounted on a rotary member of the rotary electric component of the input device according to the present invention;

Fig. 11 is a front view of the indexing plate included in the rotary electrical component of the input device of the present invention;

Fig. 12 is a sectional view taken along line 12-12 in Fig. 11;

13 is a front view of a mounting plate included in the rotary electrical component of the input device of the present invention;

Fig. 14 is a sectional view taken along line 14-14 in Fig. 13;

Fig. 15 is an explanatory diagram showing a method of assembling the rotary electric component of the input device of the present invention;

Fig. 16 is a sectional view of the input device of the present invention;

17 is a perspective view of a push switch provided on the circuit board of the input device of the present invention;

18 is an explanatory view showing a state in which a push switch provided on a circuit board of the input device of the present invention is driven;

Fig. 19 is a sectional view of the main part of the input device of the present invention;

Fig. 20 is a sectional view of an existing input device;

Figure 21 is an exploded perspective view of Figure 20;

Fig. 22 is a front view of a rotary member included in a rotary electrical component of an existing input device;

23 is an explanatory view showing a state in which a push switch provided on a circuit board of a conventional input device is driven.

Detailed ways

An embodiment of the input device of the present invention will be described below with reference to FIGS. 1 to 19 .

The rotary encoder 1 of this input device is mounted on a circuit board 22 . The rotary encoder 1 outputs electrical signals following the relative rotational movement of the detection body and the detected body. This rotary encoder 1 consists of a rotary member 10 with a detected body 20, a support member 2 with a detection body 9, an index plate 16 elastically connected to the rotary member 10, and the rotary member 10, the support member 2 and the indexing member. The plate 16 is fixed to form an integral mounting plate 17 . The rotary member 10 is rotatably supported on a fixed member composed of the support member 2 , the index plate 16 and the mounting plate 17 .

As shown in Figures 4 to 5, the supporting member 2 is a substantially pentagonal substrate made of insulating synthetic resin. On its peripheral edge, a U-shaped side wall 3 is made, and at the front end of the side wall 3, two The protruding portion 3a is formed with two through holes 3b along the direction of the axis of rotation R, and on both sides of the through holes 3b, two opposite protruding portions 3c are formed outside the two through holes 3b. In addition, a circular engaging hole 4 is formed in the support member 2, and a conductive plate not shown in the figure is embedded in the engaging hole 4 to surround the hole 4. As shown in FIG. At the same time, three terminals 5 , 6 , 7 made of conductive elastic material and respectively conducting with the conductive plate are inserted into the supporting member 2 . In addition, a plurality of conductive portions 8 as a part of the above-mentioned conductive plate have a concentric circular shape centering on the joint hole 4 and are exposed on the inner surface of the support member 2 to serve as detection bodies 9 . The three terminals 5, 6, 7 have the same shape, and the remaining parts 5a, 6a, 7a are respectively made into curved shapes, and are integrated with the three terminals.

As shown in FIGS. 6 to 10, the rotary member 10 is made of a disc-shaped insulating synthetic resin, and the rotary shaft 11 is integrally formed with its central part. At one end of the rotary shaft 11 , a hexagonal hole 12 for inserting a later-described manipulation shaft 29 extends in the direction of the rotary axis R through the other end of the rotary shaft 11 . On the surface of the rotary member 10, an annular recess 13 surrounding the rotary shaft 11 is formed. In the recess 13, three protruding portions 13a are formed; in a state where each protruding portion 13a is pressed into the three holes 14b, an annular slider 14 having three sliding pieces 14a made of a conductive metal plate, supports in the recess 13 . In this way, the slider 14 constitutes the object 20 to be detected.

In addition, on the entire circumference of the inner surface of the rotary member 10, radial concave-convex portions 15 composed of a plurality of concave portions 15a and convex portions 15b radially extending radially around the rotary shaft 11 are formed alternately. On the inner peripheral surface of the hole 12 of the rotary shaft 11, a tapered portion 12a is made from one end of the rotary member 10 to the other end whose diameter gradually decreases; at the end of the tapered portion 12a, a small diameter parallel to the rotary axis R is made. Portion 12b; connected to the small diameter portion 12b, a large diameter portion 12c is formed; and at the end of the tapered portion 12a, a stepped portion 12d is formed. As shown in Figure 3, the slope of the tapered portion 12a is at one end of the rotary member 10 at the intersection point P0 of the extension line K of the tapered portion 12a and the axis of rotation R, connecting any point P1 on the extension line K and the straight line of the intersection point P0 K', the angle α between the straight line R' connecting any point P2 on the axis of rotation R and the intersection point P0. The angle α is set at approximately 3°. One end of the rotating shaft 11 of the rotating member 10 is inserted into the engagement hole 4 of the supporting member 2;

As shown in FIGS. 11 to 12, the indexing plate 16 is made by punching a metal plate spring, and has a substantially rectangular through hole 16a in its center and a protruding portion 16b on its top surface. In addition, at the rear end of the index plate 16, two through holes 16c are formed, and on both sides of the through holes 16c, two opposite fixing holes 16d are formed outside the two through holes 16c. 3, the other end of the rotary shaft 11 of the rotary member 10 is inserted into the through hole 16a of the index plate 16, and the two protrusions 3c of the support member 2 are embedded and fixed in the two fixing holes 16d. The two through holes 16c are opposed to the two through holes 3b of the support member 2, and the protruding portion 16b is elastically connected to the radial concave-convex portion 15 of the rotary member 10.

As shown in FIGS. 13 to 14, the mounting plate 17 is made of a metal flat plate through bending. On both sides of its back 18, there are two sidewalls 19 bent at right angles, and on each side of these two sidewalls 19, there are respectively two (total four in both sides) claws 19a; Each has one (total two on both sides) mounting feet 19b. In addition, on the back surface 18, a circular joint hole 18a is made by using a stamping deburring process; on both sides of this joint hole 18a, two joint holes 18b are made on the outside; at the same time, below the joint hole 18a, along In the direction of the axis of rotation R, two through holes 18c and two opposite fixing holes 18d are formed on both sides of the holes 18c outside of it. In addition, an extended portion 18e is formed integrally with the lower edge of the rear wall 18 below the through hole 18c.

As shown in Figures 1 to 3, the other end of the rotary shaft 11 is inserted into the engaging hole 18a of the mounting plate 17, and the two protruding parts 3a on the supporting member 2 are respectively inserted in the two engaging holes 18b; meanwhile, the supporting member 2 The two protrusions 3c on the top are inserted and fixed in the two fixing holes 18d. The support member 2, the rotary member 10 and the index plate 16 are located between the two side walls 19, and the through hole 16c of the index plate 16 is opposite to the through hole 3b of the support member 2, by placing the four claws 19a on the two sides of the support member. Side bending is over, available four claws 19a and back wall 18, clamp support member 2, and rotary member 10 and indexing plate 16 make them into a whole.

Thus, the support member 2, the index plate 16 and the mounting plate 17 constitute the above-mentioned fixing member. The rotary member 10 is rotatably supported on the fixed member with a rotary shaft 11 inserted into the engaging holes 4, 18a. The support member 2 and the through holes 3b, 16c, and 18c of the index plate 16 and the mounting plate 17 constitute two through holes penetrating the fixing member. These two through holes are located at positions deviated from the rotary member 10 , that is, on the outer side of the rotary member 10 in a plan view, and pass through in the direction of the rotary axis R. Using the detected body 20 composed of the slider 14 and the detected body 9 composed of a plurality of conductors 8, a pulse signal generating part that generates a pulse signal by the rotation of the rotating member 10 can be formed.

Next, a method of assembling the rotary encoder 1 thus constituted will be described. As shown in FIG. 15, the jig 21 composed of two positioning pins 21b vertically fixed on the surface of the flat base 21a is assembled in the following procedure.

First, insert the two through holes 18c formed on the back surface 18 of the mounting plate 17 into the two positioning pins 21b of the fixture 21, and install the mounting plate 17 on the fixture 21. Next, insert the two through holes 16c formed at the rear end of the index plate 16 into the two positioning pins 21b of the fixture 21, and the index plate 16 is installed on the fixture 21. In this way, the index plate 16 is in contact with the back surface 18 of the mounting plate 17, and the two fixing holes 18d and 16d of the mounting plate 17 and the index plate 16 are overlapped and opposed to each other.

Next, the other end of the rotary shaft 11 of the rotary member 10 is inserted into the engagement hole 18 a of the mounting plate 17 to mount the rotary member 10 on the jig 21 . Next, in the state where the inner surface of the support member 2 faces the jig 21, the two through holes 3b of the support member 2 are inserted into the two positioning pins 21b of the jig 21, so that the two protrusions 3c are inserted and fixed on the jig 21. The support member 2 is mounted on the jig 21 in the two fixing holes 16d, 18d of the index plate 16 and the mounting plate 17 .

Then, the four claws 19a of the mounting plate 17 are bent onto the support member 2, and the four claws 19a and the back wall 18 are used to clamp the support plate 2, the rotary member 10 and the indexing plate 16, and they are fixed as one. Overall, the assembly is complete. After the assembly is completed, in the state where the supporting member 2 and the indexing plate 16 are overlapped, the back wall 18 of the mounting plate 17 overlaps with the indexing plate 16, and the supporting member 2 and the indexing plate 16 can be aligned by cooperating with the four claws 19a. The degree plate 16 remains in a fixed integral state. From one end toward the other end of the rotary member 10, the three terminals 5, 6, 7 and the extension 18e of the mounting plate are arranged in sequence. In this way, the assembly method of the rotary encoder 1 only needs to install the mounting plate 17, the indexing plate 16, the rotary member 10 and the support member 2 on the jig 21 sequentially, and the rotary encoder 1 can be assembled. Since there is no need for a fixed process prior to the assembling process as in the prior art, productivity can be improved.

In addition, since the mounting position of the indexing plate 16 on the mounting plate 17 is determined by two positioning pins 21b, when the indexing plate 16 is in contact with the back side 18 of the mounting plate 17, the indexing plate 16 is relatively The mounting plate 17 has no positional offset. Therefore, when inserting the two protrusions 3c of the support member 2 into the two fixing holes 16d, 18d on the index plate 16 and the mounting plate 17, even if the relationship between the fitting dimensions is strict, it can be easily inserted. In addition, after the rotary encoder 1 is assembled, since the two protrusions 3c of the support member 2 are press-fitted into the two fixing holes 16d, 18d on the indexing plate 16 and the mounting plate 17, the indexing The installation of degree plate 16 on mounting plate 17 will not be loosened, and the installation position will not deviate.

As shown in FIG. 16, the thus constituted and assembled rotary encoder 1 can be mounted and used on a circuit board 22 provided with a circuit pattern not shown in the figure. That is: on the circuit board 22, three terminal insertion holes 22a and two installation holes 22b are made, and the installation feet 19b of the rotary encoder 1 are fixedly installed in each installation hole 22b, and the inserted three terminals 5, 6, 7. By soldering each terminal insertion hole 22a with solder 23, it can be electrically connected with the above-mentioned circuit pattern. At this time, since the mounting feet 19b are not welded, when the rotary encoder 1 takes the extension portion 18e on the mounting plate 17 and the contact portion P3 of the circuit board 22 as a fulcrum, and falls along the arrow A direction, each terminal 5, 6, The remaining parts 5a, 6a, and 7a set on 7 have no load effect and still maintain the natural length S1.

In addition, an empty knife hole 22c is formed in the circuit board 22, and a push switch 24 is mounted on the opposite side of the empty knife hole 22c, facing the rotary encoder 1. As shown in Figure 17, an actuator 25a is arranged on the body 25 of the push switch 24 which is connected and fixed with the circuit board 22; , forming a shaft support portion 27 having an elongated hole 27a opened at the upper end.

Between the rotary encoder 1 and the push switch 24, a disc-shaped operating member 28 is provided. A part of the operating member is located in the above-mentioned empty knife hole 22c, corresponding to the hole 12 of the rotary member 10, the operating shaft 29 with a hexagonal cross section runs through the center of the operating member 28, and is fixed with the operating member. Both ends of the manipulation shaft 29 are inserted into the hole 12 of the rotary member 10 and the long hole 27 a of the push switch 24 . The manipulator 28 rotates together with the rotary member 10, and only the small diameter part 12b (the rear end of the tapered part 12a) of the hole of the rotary shaft 11 is a fulcrum, and the up and down direction (arrow B, C direction) of the elongated hole 27a is dumped.

In addition, on one end of the manipulation shaft 29, a sleeve 30 is fitted. The coil spring 26 and the actuator 25 a are in contact with the sleeve 30 to keep the manipulation shaft 29 parallel to the circuit board 22 . As in the prior art, assuming that the sleeve 30 is opposite to the body 25 of the push switch 24, they are separated from each other by a distance H; and the distance between one end of the body 25 and one end of the rotary shaft 11 of the rotary member 10 is L1 .

When the operator rotates the manipulation member 28 with his fingers, the protruding portion 16b of the indexing plate 16 elastically contacts with the concave portion 15a and the convex portion 15b of the radial concave-convex portion 15 alternately, producing a “click” sound. Since the rotating member 10 rotates in the same rotating direction as the operating member 28 together with the operating shaft, as the rotating member 10 rotates, the three sliding pieces 14a and the plurality of conductive parts 8 contact and separate to generate a pulse signal. This pulse signal is input from terminals 5 , 6 , and 7 as an output signal of the amount of rotation of the operating member 28 , and sent to the circuit board 22 .

When the operator presses the manipulator 28 with his fingers, as shown in Figure 18, one end of the sleeve 30 is embedded in the manipulator shaft 29, with the small diameter part 12b (the rear end of the tapered part 12a) of the hole of the rotary shaft 11 as the fulcrum, According to the direction of arrow C, overcome the elastic force of coil spring 26, drop a distance H and topple over. At this time, the sleeve 30 presses the actuator 25 a of the push switch 24 to switch the push switch 24 on and off. The ON and OFF signals of the switch 24 are input into the circuit board 22 . At this time, the small-diameter portion 12b of the hole of the rotary shaft 11 as the fulcrum is separated from one end of the rotary shaft 11 by a distance of L2 on the opposite side of the push switch 24 at one end of the rotary shaft 11, so that , the tilting of the steering shaft 29 is not hindered by contact with parts other than the small-diameter portion 12b of the hole of the rotary shaft 11 . In addition, since there is the stepped portion 12d, and, as mentioned above, the inclination of the tapered portion 12a is approximately 3°, the arrangement relationship between the rotary encoder 1 and the push switch 24 is the same as in the prior art. But the angle of inclination θ1=tan ^-1 [H÷(L1+L2)] of the steering shaft 29 is smaller than that of the prior art; meanwhile, the other end of the steering shaft 29 is supported by the tapered portion 12a, so it can stably support the dumping The steering shaft 29.

Thus, as shown in FIG. 19, when the manipulation shaft 29 is tilted, an upward force F1 and a downward force F2 are generated at the contact points of the small diameter portion 12b of the rotary member 10 and the other end of the manipulation shaft 29, respectively. Compared with the prior art, the magnitude of these two forces is small, therefore, the reaction force of the forces F1 and F2 on the manipulation shaft 29 is also small, and the manipulation shaft 29 can be tilted smoothly. In addition, by reducing the upward and downward forces F1, F2, the moment on the rotary encoder 1 in the direction of the arrow A is also reduced, and the tilting amount of the rotary encoder 1 in the direction of the arrow A is also reduced. Therefore, it is possible to reduce the load on the connection portion (the portion where the solder 23 is present) of the respective terminals 5, 6, 7 and the rotary substrate 22. In addition, since the inclination angle of the operating shaft 29 is reduced, the radius size of the large-diameter portion 12c of the hole of the rotating shaft 11 made to avoid contact with the operating shaft 29 can be reduced, so that the size of the rotating member 10 can be reduced, and the size of the rotating member 10 can be reduced. The size of the rotary encoder 1 is reduced. And because the hole 12 of the rotary member 10 and the manipulation shaft 29 inserted therein are regular hexagons, no matter what the rotation angle position of the rotary member 10 is, the manipulation shaft 29 can be tilted smoothly.

In addition, since the manipulation shaft 29 is engaged at the center of the rotary member 10, the manipulation shaft 29 moves in the radial direction by a distance of (L3/2)tanθ1 near both end openings of the hole 12. This means that the radius size of the large-diameter portion 12c of the hole 12 of the rotary shaft 11 made in order to avoid contact with the manipulation shaft 29 can be made smaller in the prior art, so that the size of the rotary member 10 can be reduced, so that the rotary The size of the encoder 1 is reduced. A flat surface is also formed on the small diameter portion 12a of the hole 12, so that it can be reliably engaged with the manipulation shaft 29, so that the rotary member 10 can be tilted along with the manipulation shaft 29. In addition, in this embodiment, since the manipulation shaft 29 engages with the center of the rotary member 10 in the direction of the rotary axis R, and is in contact with the bearing through the rotary shaft 11 of the rotary member 10, it can be compared with the prior art. Damage to the bearing portion of the rotary member 10 is suppressed.

As shown in FIG. 18, when the rotary encoder 1 falls in the direction of the arrow A due to the tilting of the operating shaft 29, since the protruding portion 16b of the index plate 16 is embedded in the concave portion 15a of the radial concave-convex portion 15 of the rotary member 10, The rotary member 10 cannot rotate, so the rotary encoder 1 can use the extension part 18e integrated with the back surface 18 of the mounting plate 17 and the contact part P3 of the circuit substrate 22 as a fulcrum, and can be tilted smoothly to form a gap between the circuit substrate 22 and the circuit substrate 22. The gap t, so that the remaining parts 5a, 6a, 7a of the three terminals 5, 6, 7 are shortened from the natural length S1 to the length S2, can absorb the tilting amount of the rotary encoder 1. As a result of the absorption, due to the toppling of the rotary encoder 1, the load on the connecting parts of the respective terminals 5, 6, 7 and the circuit substrate 22 is eliminated, and the respective terminals 5, 6, 7 and the circuit substrate 22 can maintain a good connection. Connection Status.

When the operator stops pressing the manipulation piece 28 with his fingers, the elastic force of the coil spring 26 can make the manipulation piece 28 and the manipulation shaft 29 return to the state before pressing (direction of arrow C); , the rotary encoder 1 can be returned to the state before pressing (opposite direction of arrow A). In this way, the detection signal of the amount of rotation of the manipulator 28 of the input circuit board 22 and the on and off signals of the push switch 24 can be inputted after the CPU operation of the circuit board 22 not shown in the figure, and input the In the display device, scrolling of a screen on a display not shown in the figure, a cursor, and the like are controlled.

In addition, in this embodiment, the object to be detected 20 is provided on the rotary member 10, and the detection body 9 is provided on the support member 2; Body 20. In addition, in this embodiment, the combination of the detected body 20 composed of the slider 14 and the detected body 9 composed of a plurality of conductive parts constitutes a pulse signal generating part that generates pulses from the rotation of the rotating member 10; The invention is not limited thereto; other, for example, VR encoders or variable resistors can be used, which are composed of sliders and resistors, magnets and Hall elements, and the like.

Claims (12)

1. An input device having: fixed member; a rotary member rotatably supported on the above-mentioned fixed member; Rotary electrical components having terminals for outputting electrical signals generated by the rotation of said rotary member; A circuit board equipped with rotary electrical components, connected to the above-mentioned terminals, and inputting the above-mentioned electrical signals; an operating shaft extending along the axial direction of the above-mentioned rotary member, one end of which is engaged with the above-mentioned rotary member to rotate the rotary member; the operating member mounted on the above-mentioned operating shaft; It is characterized in that a flexure part is provided on the above-mentioned terminal, and when the operating member is pressed in a direction perpendicular to the axis of the rotary member, the above-mentioned rotary electrical component will fall, and the flexure part of the terminal will deflection occurs. 2. The input device according to claim 1, wherein the fixing member has: a mounting plate for mounting the rotary electric component on the circuit board; an extension part is formed by the mounting plate, and according to The portion where the extension portion contacts the circuit board is used as a fulcrum so as to be tilted. 3. The input device according to claim 2, wherein the extension of the mounting board is provided so as to be in contact with the board surface of the circuit board. 4. The input device according to claim 1, wherein said terminal is provided with a surplus portion, and said flexure portion is formed by said surplus portion. 5. The input device according to claim 4, wherein said remaining portion is formed by bending said terminal into a C-shape. 6. The input device according to claim 5, wherein the C-shaped opening of the remaining part is formed in such a way as to face the manipulation member. 7. The input device according to claim 1, further comprising a push-type switch that is driven by pressing the operating member. 8. The input device according to claim 1, wherein a through hole penetrating along the direction of the rotation axis of the rotation member is provided at a position of the fixing member deviated from the rotation member. 9. The input device as claimed in claim 8, wherein the above-mentioned fixed member is composed of a support member, an index plate that produces a “click” sound feeling through the rotation of the above-mentioned rotary member, and the above-mentioned support member is aligned with the above-mentioned index. The boards are overlapped and maintained as a single mounting board. 10. The input device according to claim 8, wherein two of the through holes are formed in the fixing member. 11. The input device according to claim 9, characterized in that, on the above-mentioned mounting plate, on both sides of the above-mentioned through-hole, a pair of relatively penetrating fixing holes clamping the above-mentioned through-hole are provided; at the same time, on the above-mentioned support The member is provided with a pair of protruding parts fixed to the pair of holes. 12. The input device according to claim 9, characterized in that, on the above-mentioned mounting plate, on both sides of the above-mentioned through-hole, a pair of relatively penetrating fixing holes clamping the above-mentioned through-hole are provided; on the above-mentioned indexing plate On the top, there is a pair of fixing holes that are opposite to the pair of fixing holes of the above-mentioned mounting plate; at the same time, on the above-mentioned support member, there is a pair of a pair of fixing holes that are inserted and fixed on the above-mentioned mounting plate and the indexing plate. protruding part.

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