JPS6325187Y2 - - Google Patents

Description

The purpose of the device is to prevent the device from rotating when placed on a desk or to attach to clothing when carried.

However, it is unnecessary when writing, and with writing implements that have a rotating mechanism, if the clip hits your hand while writing, it may rotate in the direction of storing the cursive, so the cursive font will be removed midway through writing. The paper is stored in the paper, obstructing writing, and making it very uncomfortable to use.

The present invention has been devised for the purpose of eliminating such drawbacks.

To explain the illustrated embodiment, the base 1 is connected to the tip shaft 2.
It is located at the tip of the front shaft 2 and is screwed into a mechanical stopper 3 inside the front shaft 2. A rotation stopper 4 is press-fitted into the inner diameter portion of the rear end of the mechanism stopper 3. The rear end of the detent has a polygonal cross-section such as a hexagonal shape, and has a larger diameter than the front end. The tip of an internal tube screw 6 having a similar polygonal shape is fitted into the inner diameter portion of the polygonal portion 5 of the rotation stopper 4. Therefore, the inner tube screw 6 can slide in the axial direction with respect to the rotation stopper 4, but cannot rotate in the circumferential direction. An outer pipe threaded connection tube 7 is fitted onto the front outer periphery of the large diameter portion at the rear end of the detent 4 . The tip of an outer tube screw 8 that is threadedly engaged with the inner tube screw 6 is fitted into the outer diameter portion of the outer tube screw connection cylinder 7. A washer 9 and a washer 10 are interposed between the rear end surface of the outer tube screw connection tube 7 and the outer diameter stepped portion of the detent 4, and the outer tube screw connection tube 7
A washer 11 and a washer 12 are also in contact with the front side.
A preload spring 13 is interposed between the washer 12 and the outer step of the mechanism stopper 3. A refiel adhesive screw 14 is press-fitted into the inner diameter portion of the rear end of the inner tube screw 6, and a refiel tail plug 15 is installed inside the refiel adhesive screw.
The tip is screwed on. There is a hole in the distal end surface of the re-feel tail plug, into which the rear end of an insertion pipe 17, in which the rear end of the ball-point pen re-feel 16 is removably inserted into the inner diameter part, is press-fitted. A rear shaft 18 is located behind the front shaft 2. The rear end of the joint tube 19, the tip of which is press-fitted into the inner diameter of the rear end of the outer tube screw 8, is removably inserted into the inner diameter of the rear shaft with a certain fitting force. The rear shaft 18 is provided with a window 21 through which a clip 20 (described later) can freely move in and out, and an inner cylinder 22 is press-fitted into the inner diameter part. As shown in FIG. 3, the inner cylinder is provided with a slit 23 and a slit 24 on both opposing sides from the rear end. The slit 23 is coaxial with the rear shaft window 21 and has a slightly wider width, and the slit 24 has a slightly wider width than the outer diameter protrusion 26 of the cam body 25, which will be described later. Inside the inner cylinder 22, there is a hole 27 in the center of the front end surface into which the rear end of the refill tail plug 15 described above is inserted, and an outer diameter protrusion 26 on one side surface, and a tapered slope on the rear end surface. Cam body 2 with a cam slope 28
5 is fitted so as to be slidable in the axial direction. Since the outer diameter protrusion 26 of the cam body is fitted into the slit 24 of the inner cylinder, rotation is prevented. Inner cylinder 22 inside the rear shaft
As shown in Fig. 3, a groove 30 having the same width as the window 21 of the rear shaft is formed in the axial direction on one side of the rear end, and the rear end opens the groove to the opposite side. A clip guide 32 having long holes 31 extending perpendicular to the axial direction is provided on both side walls of the rear shaft 18 with its front end in contact with the rear end of the inner cylinder 22.
It is press-fitted into one piece. The clip 20 is housed in the groove 30 of the clip guide 32. The clip has a ball portion 34 on the inner surface of the front end that contacts the cam slope 28 of the cam body 25, and mounting legs 35 extend toward the inner surface on both sides of the rear end. This mounting leg portion 35 has a mounting hole 37 for a clip shaft 36 formed therein. The clip shaft 36 has a central portion having a larger diameter than the support portions at both ends, and has four quarters cut out. The clip shaft 36 is connected to the clip mounting leg 35.
The center portion is fitted into a mounting hole 37 provided in the clip guide 32, and the support portions at both ends thereof are inserted into the elongated holes 31 of the clip guide 32, thereby making the clip rotatable about the same axis. A helical spring 39 is attached to the inner surface of the clip, the proximal end of which is engaged with the center notch 38 of the clip shaft 36, and the other end is integrally fixed to the bottom of the groove of the clip guide 32, to secure the tip of the clip. It is always pressed in the direction of the inner surface. Therefore, the ball portion 34 of the clip is pressed and abutted against the cam slope of the cam body as described above.
The outer surface of the clip is flush with the outer peripheral surface of the rear axle in the stored state. A tail plug 40 is press-fitted and integrated into the rear end of the rear shaft 18.

The state shown in Figure 1 is the Paul Pen refill 16.
The tip of the clip protrudes from the base, that is, in the writing state, and at this time the clip is recessed into the rear shaft as shown. Next, when the rear shaft is rotated in the A direction, the joint cylinder 19
The outer tube screw 8 rotates through the outer tube screw 8, and the inner tube screw 6 which is threaded therewith cannot rotate, so it slides rearward. As the internal tube screw 6 slides backward, the pole pen refill 16 that is integrally connected thereto retreats and stores its tip in the mouthpiece, and the refill tail plug 15
also retreat. As the refeel tail plug 15 retreats, the cam body 25 in contact with the rear end is pushed and slides rearward. As the cam body 25 moves backward, the ball portion 34 of the clip that comes into contact with the cam slope 28 is lifted and appears on the outer surface of the rear shaft. In this state, the clip performs the function of securing to clothing or preventing it from rolling. That is, when the clip is attached to a pocket of clothing, the cloth A lifts up the ball portion 34 of the clip 20 and enters between the clip and the outer surface of the rear shaft like a wedge, resisting the elastic force of the helical spring. Lift up the clip. At this time, the clip shaft 36 fitted into the clip moves toward the clip lifting side along the long hole 31 of the clip guide 32 and locks the fabric. Next, the clip is stored in the rear shaft and rotated in the opposite direction to cause the re-feel to protrude from the base. That is, the refill tail plug 15 moves to the front of the axis,
The ball portion 34 of the clip connects the cam slope with the helical spring 39.
The cam body 25 is moved in the axial direction by being pushed by the elastic force of the cam body, and the ball portion moves toward the clip storage side along the cam slope, and the clip 20 is stored in the rear shaft. The ballpoint pen refill 16 protrudes from the tip of the base 1 as the inner tube screw 6 moves forward due to the rotation of the outer tube screw 8. At this time, a rib 29 provided on the outer diameter portion of the rear end of the inner tube screw 6 regulates the length of the inner tube screw 6 .

As mentioned above, the present invention has the effect of greatly improving usability because the clip does not sink into the shaft and interfere with writing when writing, and when not in use, the clip appears and performs its original function.

[Brief explanation of drawings]

The figure shows an embodiment of the present invention.
2 is a cross-sectional view of the main part when the clip is extended, and FIG. 3 is a perspective view of the clip, the inner cylinder, the clip guide, and the clip shaft. 1...Brouse, 2...Front shaft, 3...Mechanism stop, 4
... Anti-rotation, 5... Anti-rotation polygonal part, 6...
...Inner pipe thread, 7...Outer pipe thread connection tube, 8...Outer pipe thread, 9, 10, 11, 12...Washer, 13...
Preload spring, 14...Refeel adhesive screw, 15...
... Refeel tail plug, 16 ... Ballpoint pen refill, 17 ... Adhesive pipe, 18 ... Rear shaft, 19 ...
...Joining tube, 20...Clip, 21...Rear shaft window, 22...Inner cylinder, 23, 24...Slit, 2
5...Cam body, 26...Cam body outer diameter protrusion, 27
... Hole, 28 ... Cam slope, 29 ... Rib, 30
...Groove portion, 31...Elongated hole, 32...Clip guide, 34...Ball portion, 35...Mounting leg portion, 36...
Clip shaft, 37...Mounting hole, 38...Notch,
39... spiral spring, 40... tail plug, i... fabric.

Claims (1)

[Scope of utility model registration request] A cam body that moves backward as the writing body is stored is placed behind the writing body whose tip moves in and out by sliding in the axial direction, and a ball portion on the inner surface of the tip is attached to the cam slope of the cam body by spring force. A clip to be brought into contact with the pressed state is mounted in the rear shaft so as to be rotatable about its mounting part as a fulcrum, and the bearing hole of the clip shaft, which serves as the fulcrum, is made into a long hole extending perpendicular to the axial direction. It enables movement in the direction perpendicular to the axial direction, and when the writing body is stored, the cam body moves backward to cause the clip to protrude to the outside surface of the shaft, and when the writing body is protruded, the cam body is moved forward to retract the clip into the shaft. A mechanism for ejecting and retracting a clip in a writing instrument consisting of: