JP2016101668A - Ballpoint pen - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a convenient ballpoint pen which has three functions of a ballpoint pen, a pen light, and a touch pen.SOLUTION: A ballpoint pen includes a pen main body 1 and a cap body 2. The pen main body includes an illuminator 31, a storage battery B, and a light transmitting part 32 which transmits illumination light to an external. A touch pen point part 12 is arranged on other end of the pen main body. A first terminal part 51, which is energizably connected to one of a positive electrode and a negative electrode of the storage battery B and has a male screw part 61d, and a second terminal part 52, which is energizably connected to the other of the positive electrode and the negative electrode of the storage battery B, are arranged in a periphery of the touch pen point part. When the cap body covers from an other end side of the pen main body and slides to the one end side, a contact 28 abuts on the first terminal part. When the cap body is rotated in an abutment state, a female screw part 60d of the contact is screwed with the male screw part of the first terminal part. When the cap body is screwed forward, the contact in a screwed state with the first terminal part is made in contact with the second terminal part, and a current flows to light the illuminator.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a ballpoint pen.

2. Description of the Related Art Conventionally, a pen body having a ballpoint pen tip at one end and a cap body that is attached to the pen body from one end side of the pen body, an illuminator inside the pen body, and a storage battery for supplying power to the illuminator In addition, there is a ballpoint pen with a light having a light transmission part for transmitting illumination light from the illuminator to the outside of the pen body in the vicinity of the ballpoint pen tip (see, for example, Patent Document 1) ).
Such a ballpoint pen with a light is provided with a knock type switch or a rotation type switch for turning on the illuminator at the other end of the pen body.

Japanese Patent Laid-Open No. 11-34579

However, the conventional ballpoint pen with light has a problem that a touch pen tip for operating a tablet computer or a smartphone having a touch panel cannot be provided at the other end. In other words, it was necessary to carry a touch pen separately from the ballpoint pen.
Even if the tip of the touch pen is attached to the end of the switch, there is a problem that when the switch is pressed or slid against the touch panel, the switch is operated incorrectly and the illuminator is turned on, which is irradiated to the user and unusable. there were.

  Accordingly, an object of the present invention is to provide a ballpoint pen that has the three functions of a ballpoint pen, a penlight, and a touch pen and is easy to use.

  In order to achieve the above object, a ballpoint pen of the present invention comprises a pen body having a ballpoint pen tip at one end, and a cap body that can be attached to the pen body from one end side. An illuminator and a storage battery for supplying power to the illuminator, and further, light for transmitting illumination light from the illuminator to the outside of the pen body in the vicinity of the ballpoint pen tip. In a ballpoint pen having a transmission part, a touch pen tip is provided at the other end of the pen body, a first terminal part having a male screw part connected to one of the anode and the cathode of the storage battery, and a male screw part; A second terminal portion connected to the other of the anode and the cathode of the storage battery so as to be energized is provided in the vicinity of the touch pen tip, and the cap body is covered from the other end side of the pen body to the one end side. Slide Thus, a contact provided on the back side of the cap body and having a female screw portion abuts on the first terminal portion, and the cap body is in contact with the contact and the first terminal portion. , The female screw portion of the contact is screwed into the male screw portion of the first terminal portion, and the cap body is screwed to engage with the first terminal portion. The contactor is in contact with the second terminal portion and energized, and the illuminator is lit.

In addition, after the contact is brought into contact with the first terminal portion, the cap is rotated by a quarter turn or a half of a turn so that the contact is brought into contact with the second terminal portion. It is configured to contact and energize.
The contact has the female screw portion and the female screw opening side end surface, the first terminal portion is formed of a circular core member having the male screw portion, and the second terminal portion is formed of the circular shape. The cylindrical core member is formed by a cylindrical member that is externally fitted to the shape core member via an insulating layer, and the end surface of the cylindrical member is disposed closer to the one end side than the end surface of the circular core member. The female screw portion of the child is threadedly engaged with the male screw portion of the circular core member, and the female screw opening side end surface of the contactor is in contact with the end surface of the cylindrical member for energization. It is a thing.

  According to the present invention, the three functions of a ballpoint pen, a penlight, and a touch pen are combined, and it is not necessary to carry the penlight, the ballpoint pen, and the touch pen individually. When the touch pen tip is pressed or slid on the touch panel, or when writing with a ballpoint pen, the illuminator does not turn on carelessly, making it easy to use. Despite the absence of a knock-type switch and a rotation-type switch, the illuminator lights up when the cap body is put on and slides, and then the illuminator lights up. Differentiation), and willingness to purchase.

It is a half section front view showing one embodiment of the present invention. It is a half cut front view which shows a slide start state. It is a half-cut cross-sectional front view which shows the contact state of a contactor and a 1st terminal part. It is a principal part expanded end view which shows the contact state of a contact and a 1st terminal part. It is a principal part expanded end view of the state in the middle of screwing. It is a principal part expanded end view of an energized state. It is a half-cut cross-sectional front view of an energized lighting state. It is AA sectional drawing of FIG.

Hereinafter, the ballpoint pen of the present invention will be described in detail based on the illustrated embodiment.
As shown in FIG. 1, the ballpoint pen according to the present invention includes a pen body 1 having a ballpoint pen tip 11 at one end 1a, and a cap body 2 that can be attached to the pen body 1 from the one end 1a side. .

  The pen body 1 is provided with an illuminator 31 such as an LED in the vicinity of the ballpoint pen tip 11 and a storage battery B such as a button battery for supplying power to the illuminator 31 inside a cylindrical pen casing 10. Yes. Further, the pen body 1 is provided with a light transmission part 32 for transmitting the illumination light from the illuminator 31 to the outside of the pen body 1 (pen casing 10) in the vicinity of the ballpoint pen tip part 11.

  That is, in the pen body 1, when power is supplied from the storage battery B to the illuminator 31, the illuminator 31 is turned on, and one end 1 a (the ballpoint pen tip 11) of the pen body 1 is directed via the light transmission part 32. It is configured to function as a penlight that illuminates the direction of the light.

Further, the pen body 1 is connected to the other end 1b at the tip end 12 of a resin or rubber-made tip or the like that can operate the touch panel and the anode of the storage battery B (electrical), and the touch pen. The first terminal portion 51 exposed (projected) from the pen casing 10 in the vicinity of the tip portion 12 is connected to the cathode of the storage battery B through the illuminator 31 (electrically), and the touch pen tip portion 12 is connected. , A second terminal portion 52 exposed (protruded) from the pen casing 10 is provided.
The cap body 2 is provided with a contact 28 for energization on the bottomed back portion 2b side.

The first terminal portion 51 is a conductive circular core member 61 having an annular end surface 61a disposed concentrically so as to surround the touch pen tip portion 12 in plan view (centered on the pen axis L). It consists of the edge part (tip part). The circular core member 61 has a male screw portion 61d on the outer peripheral surface of the end portion.
The second terminal portion 52 is a conductive cylinder having an annular end surface 62a disposed concentrically (centering around the pen axis L) so as to surround the end surface 61a of the circular core member 61 in plan view. It consists of the end part (tip part) of the shaped member 62.

The cylindrical member 62 has an end surface 62a provided closer to the one end 1a side of the pen body 1 than the end surface 61a of the circular core member 61, and is disposed on the circular core member 61 with an insulating layer 90 interposed therebetween. ing.
That is, the end of the circular core member 61 is disposed radially inward of the end of the cylindrical member 62 and protrudes toward the other end 1b, so that the end of the circular core member 61 and the cylindrical member A bamboo shoot-shaped contact step 50 is formed with the end of 62. Further, the touch pen tip portion 12 protrudes from the end surface 61a of the circular core member 61 (to the other end 1b side).

  The insulating layer 90 is formed by interposing a member obtained by molding or processing an insulating material such as resin or rubber material between the circular core member 61 and the cylindrical member 62, or a sealing agent or the like. It is formed by filling an insulating fluidizing agent and then solidifying it.

The contact 28 includes a conductive cylindrical member (cylindrical portion) 60 that protrudes toward the cap opening side on the back portion 2b side of the cap body 2 and has a female screw portion 60d.
The cylindrical member 60 is disposed around the pen axis L in plan view, and has a female screw portion 60d formed on the inner peripheral surface and an annular female screw opening side end surface 60a.
The cap body 2 has a cylindrical cap peripheral wall portion 20 and a cap back wall portion formed of a non-conductive member, and a conductive cylindrical member 60 is fixed to the cap back wall portion to form a conductive cylindrical contact. 28 is formed.

Then, as shown in FIG. 2, when the cap body 2 is put on the other end 1 b side of the pen body 1 and is slid (linearly moved) to the one end 1 a side of the pen body 1, as shown in FIGS. 3 and 4. The cylindrical member 60 (contact 28) contacts the circular core member 61, and the sliding of the cap body 2 toward the one end 1a is restricted. As shown in FIG. 4, the touch pen tip 12 is inserted into the cylindrical member 60.
The thread of the female threaded portion 60d of the cylindrical member 60 abuts on the thread of the male threaded portion 61d of the circular core member 61, and the sliding toward the one end 1a side is restricted (blocked).

  When the cap body 2 is rotated in one direction around the pen axis L from the contact state between the cylindrical member 60 and the circular core member 61 of FIG. 4, as shown in FIG. The portion 60d and the male thread portion 61d of the circular core member 61 are screwed together, and the cap body 2 is screwed toward the one end 1a side of the pen body 1. The cylindrical member 60 and the circular core member 61 are electrically connected so as to be energized in the contact state of FIG. 4 and in the middle of screwing (screwed state) of FIG.

  When the cap body 2 is further rotated in one direction and screwed, as shown in FIG. 6, the female screw opening side end surface 60a of the cylindrical member 60 and the cylindrical member 60 in the threaded state is formed into the cylindrical member 62. The circular core member 61 and the cylindrical member 62 are electrically connected and energized through the cylindrical member 60 in contact with the end surface (tip surface) 62a of the illuminator 31. As shown in FIG. It is configured to light up.

Further, after the cylindrical member 60 comes into contact with the circular core member 61 (see FIG. 4), the cap body 2 is rotated by one quarter rotation (90 degrees) to one and a half rotations in one direction around the pen axis L (see FIG. 4). The end surface 60a of the cylindrical member 60 is in contact with the end surface 62a of the cylindrical member 62 and is energized by being rotated by 540 degrees (see FIG. 6). More preferably, it is provided so as to be energized by rotating it by half rotation (180 degrees) to 1 rotation and 1/4 rotation (450 degrees).
If it is less than the lower limit, the cap body 2 may rotate during writing, and the illuminator 31 may be lit. If the upper limit is exceeded, it takes time for the rotation operation to light up.

  Here, as shown in FIG. 2, a non-conductive friction member 26 provided on the inner surface near the opening of the cap body 2 by covering the cap body 2 from the other end 1 b side of the pen body 1, and the pen casing 10. From the slide start position (slide start state) where the sliding outer peripheral surface 19 (the other end side outer peripheral surface 19B) on the other end 1b side contacts and the sliding contact of the cap body 2 starts, Slide dimension S until the circular core member 61 abuts and the slide of the cap body 2 is restricted (slidable from the end face 21 of the cap body 2 at the slide start position to the end face 21 of the slide restriction position indicated by a two-dot chain line) Stroke dimension) is set to 20 mm or more and 60 mm or less. If it is less than the lower limit value, the cap body 2 may be inadvertently detached, and if the upper limit value is exceeded, the cap body 2 and the pen body 1 become longer and the usability becomes worse.

  Further, the frictional resistance force between the friction member 26 and the slide outer peripheral surface 19 is set to be larger than the own weight (load) of the cap body 2. Further, it is set larger than the load of the pen body 1. That is, the cap body 2 can be slid between the slide start position and the slide restriction position and stopped at a desired position. The vertical posture with the cap body 2 in the upper position, or the pen body 1 in the upper position. Even in the vertical posture, the stop position is maintained (so that the cap body 2 and the pen body 1 do not approach or separate from each other by their own weight).

Further, as shown in FIG. 8, the friction member 26 is 60% or more and 95% of the annular space between the inner peripheral surface 22 of the cap body 2 and the outer peripheral surface 19 for sliding of the pen casing 10 in the cross section. It is provided to block the following. That is, when the cap body 2 is slid or screwed into the pen body 1 by covering 60% to 95% of the outer periphery of the slide outer peripheral surface 19 of the pen casing 10 in the cross section, A plurality (two in the illustrated example) of air passages 25 and 25 are formed around the pen axis L so as to escape the air that is trapped between the cap bodies 2 and compressed. By forming in this way, the compressed air can be removed slowly and smoothly and smoothly, and the cap body 2 can be mounted by sliding or screwing, and a high-class feeling can be produced.
In FIG. 8, the configuration (parts) in the pen casing 10 is not shown.

Further, as shown in FIG. 1, the cap body 2 slides on the sliding outer peripheral surface 19 (one end outer peripheral surface 19A) on the one end 1a side of the stopper portion 13 provided in the outer casing shape in the intermediate portion of the pen casing 10. It can be attached so as to protect the ball-point pen tip portion 11 so that the contact 28 does not come into contact with the pen body 1 in a state where the end-side cap is attached with the end surface 21 of the cap body 2 in contact with the stopper portion 13. Provided.
Further, the outer diameter of the one end side outer peripheral surface 19A and the other end side outer peripheral surface 19B are the same, and the cap body 2 is mounted smoothly and smoothly from the other end 1b side.
Further, by making the cap body 2 a non-transparent member (visible light transmittance is less than 5%), the contact 28 cannot be seen from the outside, and lighting is performed by slide regulation or screwing in any structure. Can not see, it can improve the willingness to purchase and the surprise effect.
Further, the pen casing 10 has a cylindrical first case member 10A having an outer peripheral surface 19A on one end side, a stopper portion 13 and a male screw portion for coupling, an outer peripheral surface 19B on the other end side, and a female screw portion for coupling. A cylindrical second case member 10B, which is formed by screwing the first case member 10A and the second case member 10B together.

Here, an electrical connection structure that connects the first terminal portion 51 and the storage battery B so as to be energized, an electrical connection structure that connects the second terminal portion 52 and the illuminator 31 so that energization is possible, and the illuminator 31 and the storage battery B An electrical connection structure for connecting the two in such a manner that they can be energized will be described with reference to FIG.
The circular core member 61 is directly connected to the storage battery B. The cylindrical member 62 is always connected to the cylindrical member 62 and the pen casing 10 (first case member 10A) via the conductive pen casing 10 (first case member 10A and second case member 10B). The illuminator 31 is connected to the illuminator 31 through a conductive position adjusting coil spring 71 and a conductive pen casing 10 (the first case member 10A). The illuminator 31 includes an intermediate between a first conductive member 72 fitted on the distal end side of the ballpoint pen core member 70, a second conductive member 73 fitted on the proximal end side of the ballpoint pen core member 70, and the ballpoint pen core member 70. The battery B is connected to the storage battery B so as to be energized (conductive) through a conductive conductive coil spring 74 that surrounds the first conductive member 72 and constantly contacts the first conductive member 72 and the second conductive member 73. Alternatively, the outer peripheral wall of the ball-point pen core member 70 may be formed of a conductive material so that electricity can be passed through the ball-point pen core member 70.
In addition, the pen body 1 includes an insulating case member 91 that is externally attached to the storage battery B, an insulating surrounding member 92 that is externally provided on the second conductive member 73, and a first conductive member 72. And an insulating lid member 93 provided between the pen casing 10 (the first case member 10A) and protecting the illuminator 31. Further, the cap peripheral wall portion 20 and the friction member 26 of the cap body 2 are non-conductive. The first terminal portion 51 may be connected to the cathode of the storage battery B, and the second terminal portion 52 may be connected to the anode of the storage battery B. Not only the illustrated electrical connection structure, but the pen body 1 may have a structure in which the first terminal portion 51 is connected to the storage battery B through the illuminator 31 so as to be energized. In other words, at least one (one or both) of the first terminal portion 51 and the second terminal portion 52 may be connected to the storage battery B via the illuminator 31 so as to be energized.

Next, the operation (usage method) of the ballpoint pen according to the present invention will be described.
When operating the touch panel, as shown in FIG. 1, the pen body 1 is used in a state in which the cap body 2 is mounted from the one end 1 a side. Even if the touch pen tip portion 12 is pressed or slid on the touch panel, the illuminator 31 does not light up, which is convenient.

Then, when writing as a ballpoint pen, as shown in FIG. 2, when the cap body 2 is put on the pen body 1 from the other end 1b side and slid by the slide dimension S from the slide start position to the one end 1a side, FIG. As shown, the contact 28 abuts on the first terminal portion 51 and the sliding toward the one end 1a is restricted. Write in this slide regulation state. Even if the cap body 2 moves during writing, the illuminator 31 does not light up and it is easy to use.
Alternatively, the pen body 1 is slightly rotated in one direction around the pen axis L from the state of restricting the slide toward the one end 1a, and the contact 28 and the first terminal portion 51 are screwed as shown in FIG. By bringing the contactor 28 and the second terminal portion 52 into a non-contact state, the cap slide prevention state and the light extinction state are established, and writing can be performed without worrying about the slide of the cap body 2.

Furthermore, when the surroundings become dark during the memo in presentations or lectures, the cap body 2 is rotated in one direction and screwed, and as shown in FIG. The end surface 60a contacts the end surface 62a of the cylindrical member 62 and is energized. As shown in FIG. 7, the illuminator 31 is turned on, and the ballpoint pen tip 11 and the recording paper are illuminated via the light transmitting portion 32. You can continue writing. When the surroundings become bright, the illuminator 31 is turned off by rotating the cap body 2 in the other direction.
That is, there is no need to remove the cap body 2, and it is possible to quickly and quietly switch between lighting and extinguishing without making a clicking sound as compared with the knock type or the rotating type.
Moreover, it can be used as a penlight like a flashlight, not only during writing.

  Also, when a prospective purchaser looks at a stationery store or the like, it is easily understood that there is a ballpoint pen tip 11 and a touch pen tip 12, but the illuminator 31 is not exposed to the outside, and a knock type or Since there is no rotary switch and the contact 28 is in contact with the first terminal portion 51 and the second terminal portion 52 inside the cap body 2, the timing and structure of turning on and off can be understood at a glance from the outside. Unable to obtain surprises, impressions, and surprise effects that produce interest, and directing effects.

In the present invention, for ease of explanation, the case where the pen body 1 is fixed and the cap body 2 is lit and turned off by sliding or rotating is described. However, the pen body 1 and the cap body 2 May be moved closer to or away from each other in the direction of the pen axis L, or the cap body 2 may be fixed and the pen body 1 may be inserted into and removed from the cap body 2, or the cap body 2 and the pen body 1 may be The illuminator 31 can be turned on / off by rotating in a different direction around the pen axis L or by rotating the pen body 1 with the cap body 2 fixed.
That is, the sliding of the cap body 2 means that the pen body 1 is fixed relative to the cap body 2 and the cap body 2 is slid relative to the pen body 1. Means that the pen body 1 is fixed relative to the cap body 2 and the cap body 2 is rotated relative to the pen body 1, and only the cap body 2 is moved and used ( It does not limit the state of use).

  The design of the present invention can be changed, and the circular core member 61 may be cylindrical or cylindrical. Electrical connection structure for connecting the first terminal portion 51 and the storage battery B so as to be energized, Electrical connection structure for connecting the second terminal portion 52 and the storage battery B so as to be energizable, and connection between the illuminator 31 and the storage battery B The electrical connection structure that connects to the storage battery B, the electrical connection structure that connects one or both of the first terminal portion 51 and the second terminal portion 52 to the storage battery B via the illuminator 31 so as to be energized, and the insulation structure For example, the circular core member 61 may be connected to the storage battery B via a conductive member, or may be electrically connected to each electrical connection structure using a conductor or a conductor wire.

  As described above, the ballpoint pen of the present invention includes the pen body 1 having the ballpoint pen tip 11 at one end 1a and the cap body 2 that can be attached to the pen body 1 from the end 1a side. In addition, an illuminator 31 and a storage battery B for supplying electric power to the illuminator 31 are provided inside, and the illumination light from the illuminator 31 is transmitted to the outside of the pen body 1 in the vicinity of the ballpoint pen tip 11. In the ballpoint pen having the light transmitting portion 32 for providing the touch pen tip 1, a touch pen tip portion 12 is provided at the other end 1b of the pen body 1, and the male screw portion 61d is connected to one of the anode and the cathode of the storage battery B so as to be energized. And a second terminal portion 52 connected to the other of the anode and the cathode of the storage battery B so as to be energized is provided in the vicinity of the touch pen tip portion 12, and from the other end 1b side of the pen body 1. Cover the cap body 2 and slide it to the one end 1a side. Then, the contact 28 provided on the back portion 2b side of the cap body 2 and having the female screw portion 60d abuts on the first terminal portion 51, and the cap 28 is in contact with the contact 28 and the first terminal portion 51. By rotating the body 2, the female screw part 60 d of the contact 28 is screwed into the male screw part 61 d of the first terminal part 51, and the cap body 2 is screwed to screw the first terminal part 51 and screw. Since the contact 28 in the combined state comes into contact with the second terminal portion 52 and is energized, and the illuminator 31 is lit, it has the three functions of a ballpoint pen, penlight, and touch pen. , It becomes unnecessary to carry the touch pen individually. Even if the touch pen tip 12 is pressed or slid on the touch panel, the illuminator 31 does not light up and the usability is good (no malfunction). Despite the absence of a knock-type switch or a rotary switch, the illuminator 31 is turned on by turning the cap body 2 and turning it, making it easier for the prospective purchaser to be interested (discrimination from conventional ballpoint pens) ) And willingness to purchase. Further, the contact 28 and the first terminal portion 51 are screwed together, and the contact 28 and the second terminal portion 52 are not contacted, so that the cap body 2 is prevented from sliding, but the light is turned off. You can write in

  Further, after the contact 28 comes into contact with the first terminal portion 51, the cap 28 is rotated by a quarter turn or a half of a turn to be screwed, so that the contact 28 is brought into contact with the second terminal portion 52. Since it is configured to be in contact and energized, it is possible to easily and quickly switch between the illumination lighting state and the non-lighting state. Further, it is possible to prevent the illuminator 31 from being turned on carelessly during writing.

  Further, the contact 28 has a female screw portion 60d and a female screw opening side end surface 60a, the first terminal portion 51 includes a circular core member 61 having a male screw portion 61d, and the second terminal portion 52 includes: The circular core member 61 is formed of a cylindrical member 62 that is externally fitted via an insulating layer 90, and the end surface 62a of the cylindrical member 62 is closer to the one end 1a side than the end surface 61a of the circular core member 61. The female screw portion 60d of the contact 28 is screwed into the male screw portion 61d of the circular core member 61, and the female screw opening side end surface 60a of the contact 28 is in contact with the end surface 62a of the cylindrical member 62. Thus, since it is configured to energize, it is not necessary to provide a complicated switch mechanism on the pen body 1 side, and it can be manufactured easily and quickly with a simple structure.

DESCRIPTION OF SYMBOLS 1 Pen main body 1a One end 1b The other end 2 Cap body 2b Back part
10 Pen casing
11 Ballpoint
12 Touch pen tip
28 Contact
31 Illuminator
32 Light transmission part
51 1st terminal
52 2nd terminal
60 Tube
60a Female thread opening side end face
60d female thread
61 Circular core
61a End face
61d Male thread
62 Cylindrical member
62a end face
90 Insulation layer B Storage battery

Claims (3)

A pen body (1) having a ballpoint pen tip (11) at one end (1a), and a cap body (2) that can be attached to the pen body (1) from one end (1a) side. The main body (1) has an illuminator (31) and a storage battery (B) for supplying power to the illuminator (31) inside, and further, in the vicinity of the ballpoint pen tip (11), In a ballpoint pen having a light transmission part (32) for transmitting illumination light from the illuminator (31) to the outside of the pen body (1),
A touch pen tip (12) is provided at the other end (1b) of the pen body (1), and is electrically connected to one of the anode and the cathode of the storage battery (B) and has a male screw portion (61d). A first terminal portion (51) and a second terminal portion (52) connected to the other of the anode and the cathode of the storage battery (B) so as to be energized are provided in the vicinity of the touch pen tip portion (12),
By covering the cap body (2) from the other end (1b) side of the pen body (1) and sliding it toward the one end (1a) side, the inner side (2b) side of the cap body (2) A contact (28) provided and having a female screw portion (60d) contacts the first terminal portion (51), and the contact (28) and the first terminal portion (51) are in contact with each other. By rotating the cap body (2), the female screw part (60d) of the contact (28) is screwed into the male screw part (61d) of the first terminal part (51), By screwing the cap body (2), the contact (28) screwed with the first terminal portion (51) is brought into contact with the second terminal portion (52) to energize the illuminator. A ballpoint pen configured to light up (31).   After the contact (28) comes into contact with the first terminal part (51), the cap (2) is rotated by a quarter turn or a half of a turn, and is screwed. The ballpoint pen according to claim 1, wherein (28) contacts the second terminal portion (52) and is energized. The contact (28) has the female screw portion (60d) and the female screw opening side end surface (60a),
The first terminal portion (51) includes a circular core member (61) having the male screw portion (61d),
The second terminal portion (52) is composed of a cylindrical member (62) disposed on the circular core member (61) in an outer fitting manner via an insulating layer (90),
The end surface (62a) of the cylindrical member (62) is disposed closer to the one end (1a) than the end surface (61a) of the circular core member (61),
The female screw part (60d) of the contact (28) is screwed into the male screw part (61d) of the circular core member (61), and the female screw opening side end face of the contact (28) The ballpoint pen according to claim 1 or 2, wherein (60a) contacts the end face (62a) of the cylindrical member (62) to energize.

Images