JP2010036503A - Writing utensil - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide the clip of a writing utensil, the pinching force of the clip can easily be changed in the clip, with which the writing utensil is retained by the pocket or the like of clothes. <P>SOLUTION: The basic end of a spring holder 11 is pivoted by the outside of a body 1. A clip 16 is rockingly mounted to the spring holder. Between the clip and the spring holder, a spring 19 is provided so as to elastically thrusting the tip of the clip against the outside of the body. The tip under surface of the spring holder contacts a rotary tube 8 rotatably attached to the body. On the outside of the rotary tube, a thrusting surface 23 is formed so as to push up the fulcrum of the clip 16 through the spring holder 11 when the rotary tube is turned. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a clip for a writing instrument, and more particularly to a clip for a writing instrument that can easily change the clamping force of the clip.

The writing instrument is provided with a clip so that it can be easily carried by being sandwiched between objects to be sandwiched such as pockets and bags. However, since these clips generally have a constant clamping force, they cannot be reliably fixed due to the thickness of the object to be clamped, and may easily fall off, or the clamping force may be too strong to use. It was. Therefore, a clip has been proposed in which the clamping force can be changed according to the thickness of clothes or the like (see, for example, Patent Document 1). However, the clip described in Patent Document 1 has a complicated structure and is difficult to assemble, and it is not easy to change or adjust the clamping force.
Japanese Utility Model Publication No. 50-10831 (Claims for utility model registration, drawings)

  The problem to be solved by the present invention is to provide a clip for a writing instrument in which the clamping force can be easily changed according to the thickness of an object to be sandwiched such as a pocket or clothes, the structure is simple and economical, and the clamping force can be easily adjusted. Is to provide.

  According to the present invention, the base end of the spring holder is pivotally attached to the main body so as to be swingable, and the clip is attached to the spring holder so as to be swingable. A spring is provided between the tip of the spring holder and the clip so as to bias the spring, and a rotating cylinder is provided on the main body so as to rotate in contact with the lower surface of the spring holder, and when the rotating cylinder is rotated, A clip for a writing instrument is provided in which an arc-shaped pressing surface whose distance from the center gradually changes is provided on the outer surface of the rotating cylinder in contact with the spring holder so as to push up the fulcrum of the clip.

  The present invention is configured as described above, and the base end of the spring holder is pivotally attached to the main body and the clip is attached to the spring holder so that the spring can swing. The tip of the clip is elastically attached to the outer periphery of the main body. A spring is provided between the tip of the spring holder and the clip so as to urge the clip in the direction of contact, a rotating cylinder that rotates in contact with the lower surface of the spring holder is provided on the main body, and the spring holder is rotated when the rotating cylinder is rotated. Since the arc-shaped pressing surface in which the distance from the center gradually changes is formed on the outer surface of the rotating cylinder in contact with the spring holder so as to push the fulcrum of the clip through, the tip of the spring holder is pushed up when the rotating cylinder is rotated, The clip fulcrum can be raised to increase the clip clamping force. Further, if the rotating cylinder is rotated in the reverse direction, the clip fulcrum can be lowered to weaken the clamping force, and the optimum clamping force can be obtained.

  In addition, if the rotating cylinder is used as a writing tool tail plug and a knock for feeding the refill is inserted into the tail plug in a non-rotatable state, the knock protruding from the rear end of the main body can be rotated to easily rotate the rotating cylinder. The clip adjustment operation is easier.

  Although the present invention can be applied to various writing instruments, FIGS. 1 and 2 show an embodiment in which the present invention is applied to a knock-type writing instrument. As is well known, a refill 2 is housed in a main body 1 forming a shaft cylinder, and the refill holder 3 is attached to the rear between a refill holder 3 that supports the rear end of the refill and an inner step portion 4 of the main body 1. A knocking spring 5 is provided. An annular receiving groove 26 and a locking portion 27 are formed at the rear portion of the refill holder 3, and the knock 6 is inserted so as to protrude from the rear of the main body 1, and the annular raised portion 28 formed on the inner surface of the knock is received by the receiving portion. The engaging portion 27 is engaged with the groove 26 and a part of the engaging portion 27 is inserted into the hole 29 formed in the knock so as to be rotatably connected. If the knock 6 is knocked, the tip of the refill 2 can be projected from the tip 7 to be writable or can be retracted and stored as is well known. The refill feed mechanism can be formed in various other known knock mechanisms, rotary feed mechanisms, or the like, or a side knock feed mechanism. In addition to the ballpoint pen as shown in the figure, appropriate parts of various products using a writing instrument such as a fountain pen, a mechanical pencil, a highlighter pen, a marker, and other clips, and other clips may be used as the main body.

  A rotary cylinder 8 is provided at the rear end of the main body 1 so as to be rotatable in a retracted state. In the embodiment shown in the figure, the rotary cylinder constitutes a tail plug of a writing instrument. A long groove 9 is formed on the inner surface of the rotating cylinder 8 in a facing state, and a guide projection 10 is also provided on the outer periphery of the knock 6 in a facing state. By engaging the guide projection 10 with the long groove 9, respectively. The knock can be moved in the longitudinal direction of the rotating cylinder and cannot be rotated in the circumferential direction. Accordingly, when the knock 6 is rotated, the tail plug is rotated, and when the knock is knocked and moved in the longitudinal direction, the tip of the refill can be protruded or immersed.

  The base end of the spring holder 11 is pivotally attached to the side surface of the main body 1 so as to be swingable. In the embodiment shown in the figure, a mounting shaft 12 is formed on the main body 1, a fitting portion 13 is provided at the proximal end of the spring holder 11, and the fitting portion 13 is fitted on the mounting shaft 12 to support the spring holder 11. 11a. A mounting shaft that protrudes laterally at the base end of the spring holder and is fitted with a fitting part on the main body, or a mounting hole that is provided separately on the spring holder and the main body. May be communicated with the mounting hole (not shown). The main body 1 is provided with an outer peripheral projection 14 so as to face the rear end of the spring holder when the tip of the spring holder 11 is close to the main body. On both sides of the spring holder 11, there are support plates 15 erected upward in a facing state, and clips 16 are attached to the support plates 15 so as to be swingable. In the connection structure of the clip 16 and the support plate 15 shown in the figure, a mounting hole 17 is provided in the support plate 15, and a mounting shaft 18 formed inward of the clip 16 is fitted into the mounting hole 17. 16 is provided as a fulcrum 16a, but a mounting shaft is provided on the support plate, a mounting hole is provided in the clip, and both are fitted, or a mounting hole is provided in both the support plate 15 and the clip 16, and the mounting shaft is provided separately. May be connected in communication (not shown).

  A spring 19 is provided between the tip of the spring holder 11 and the clip 16 so as to bias the clip 16 in a direction in which the tip of the clip 16 elastically contacts the outer periphery of the main body 1. The spring 19 is constituted by a substantially S-shaped leaf spring, one end is inserted into the receiving groove 20 formed in the spring holder 11, and the other end is brought into contact with the back surface of the clip 16 to urge the clip 16. Yes. A spring such as a torsion spring can be used instead of the leaf spring (not shown).

  A pressing protrusion 21 is formed on the lower surface of the tip of the spring holder 11, and a groove 22 into which the pressing protrusion 21 is inserted is formed in the rotary cylinder (tail plug) 8. The spring holder 11 is formed at the bottom of the groove 22. A pressing surface 23 is formed so as to push up the tip. When the rotating cylinder is rotated, the pressing surface 23 has an arc shape (substantially spiral) in which the distance from the rotation center of the rotating cylinder 8 gradually changes so that the fulcrum 16a of the clip 16 can be pushed up via the spring holder 11. ).

  Further, as shown in FIGS. 4 and 5, characters such as “normal load” and “power lock” and appropriate signs as an indication 24 indicating the rotational position of the rotary cylinder 8 at an appropriate position on the rear end of the main body 1. If the rotary cylinder (tail plug) 8 or the knock 6 is provided with an arrow display 27 to instruct this display, the clip 16 can be seen at a glance and used. Cheap.

  When the pressing protrusion 21 of the spring holder 11 is in contact with the deep portion of the pressing surface 23 of the rotating cylinder 8 as shown in FIG. 1 with the above configuration, the distance A between the fulcrum 16a of the clip 16 and the central axis of the main body is It is the shortest distance and can be clamped to an object to be clamped such as a pocket with a normal spring pressure.

  When the knock 6 is rotated to the state shown in FIG. 2, the fulcrum 16a of the clip 16 is pushed up around the fulcrum 11a of the spring holder 11, and the distance A between the fulcrum 16a of the clip 16 and the center axis of the main body is The spring 19 is compressed to a maximum distance and is in a power lock state with the maximum clamping force, and can be clamped to the object to be clamped with a large force. Moreover, if it is set as the intermediate position of FIG. 1 and FIG. 2, a clamping force can be changed suitably.

  In the above-described embodiment, the shaft cylinder of the writing instrument is used as the main body. However, the clip may be provided using the cap of the writing instrument or the like as the main body, or as described above, the clip may be provided using the other appropriate article as the main body. In the above embodiment, the rotating cylinder also serves as a tail plug and rotates with a knock. However, the rotating cylinder can be directly rotated without using a knock, or an appropriate rotating cylinder can be provided at an intermediate portion of the shaft cylinder. It may be provided, or may be a rotating cylinder that is provided with an appropriately shaped operation piece that is not a complete cylinder and moves the spring holder.

Sectional drawing which shows one Example of this invention and the clamping force of a clip is a normal state. Sectional drawing when the clamping force of a clip is a power lock state. The reference figure which shows the state which attaches a spring holder to a main part. Explanatory drawing which displays that the clamping force of a clip is a normal state. Explanatory drawing which displays that the clamping force of a clip is a power lock state.

Explanation of symbols

1 Body 2 Refill 6 Knock 8 Rotating barrel (tail plug)
11 Spring holder 11a Spring holder fulcrum 15 Support plate 16 Clip 16a Clip fulcrum 19 Spring 21 Press projection 23 Press surface

Claims (4)

  The base end of the spring holder is pivotally attached to the main body so as to be swingable, and the clip is attached to the spring holder so as to be swingable, and the spring is urged so that the tip of the clip elastically contacts the outer periphery of the main body. A spring is provided between the tip of the holder and the clip, and a rotating cylinder is provided on the main body so as to rotate in contact with the lower surface of the spring holder. When the rotating cylinder is rotated, the fulcrum of the clip is pushed up via the spring holder. A clip for a writing instrument in which an arc-shaped pressing surface whose distance from the center gradually changes is formed on the outer surface of the rotating cylinder in contact with the spring holder.   The clip of the writing instrument according to claim 1, wherein the spring holder has a pressing protrusion on a lower surface of the tip, a groove into which the pressing protrusion enters is formed in the rotating cylinder, and the pressing surface is formed on a groove bottom.   The clip of the writing instrument according to claim 1 or 2, wherein the rotating cylinder is a tail plug provided at a rear portion of the main body.   A knock for feeding out the refill stored in the main body through a knock operation is inserted into the tail plug, and the knock is connected to the tail plug in the longitudinal direction and is non-rotatable in the rotation direction. The clip of the writing instrument according to claim 3.

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