JP2008260175A - Fitting structure of clip for writing utensil - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fitting structure of a clip for a writing utensil which can insert a comparatively thicker object to be inserted under a simple structure and is free from the operating failure of a clip due to the wear of each member in a long-term clip operation. <P>SOLUTION: A nestable tube 5 is fixed inside a barrel 2, and a coil spring 7 and a movable piece 9 with a slope surface 8 in which a first guide groove 12 is formed, are slidably inserted into the nestable tube 5. In addition, a first fitting protrusion 18 is formed at the leg part 14 of the clip 1, and the rear wall surface 19 of the leg part 14 is formed arcuately which is curved inwardly and a second fitting protrusion 21 of the arc shape is formed on the rear wall surface 19. Further, the clip 1 is arranged by fitting the first fitting protrusion 18 of the clip 1 to the first guide groove 12 of the movable piece 9. Besides, a forward wall surface 24 is formed arcuately in the same way as is the second fitting protrusion 21 of the chip 1, and a plug member 22 with a second guide groove 26 of the arc shape is sealed behind the clip 1. The second fitting protrusion 21 of the clip 1 is fitted to the second guide groove 26. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a writing instrument clip mounting structure.

  The function of the writing instrument clip is to prevent rolling when the writing instrument is placed on a desk, etc., and when the cloth such as a pocket is inserted between the clip and the surface of the shaft tube, the cloth is firmly held between the clip and the surface of the shaft tube. In addition, it has a function of preventing a dropout from a pocket or the like when being carried. In order to give the latter clip a clamping function, various attachment structures for writing instrument clips have been proposed.

  Under these circumstances, a clip attachment structure for writing instruments that can hold relatively thick objects such as notebooks, magazines, and pockets of pockets has been proposed. There has been proposed a structure that lifts in a direction away from the surface of the shaft cylinder or the cap cylinder. Among them, as a simple structure, a clip having a structure in which the entire clip is lifted along an inclined surface is disclosed in Japanese Utility Model Laid-Open No. 63-94792. The present invention is capable of adjusting the contact pressure with respect to the cloth of the ball part of the clip of the writing instrument, provided with a guide hole inclined at a required angle with respect to the axial direction on the axis of the writing instrument, and having a ball part A support piece portion inclined at substantially the same angle as the guide hole with respect to the main body is attached to the clip, the support piece portion of the clip is slidably inserted into the guide hole of the shaft, and the support piece portion of the clip is further inserted into the guide hole. A locking device that is fixed at a required position is provided. As a locking device, the pressing element inserted into the through hole is firmly pressed to the upper surface uneven portion of the support piece portion to fix at a required position. .

However, in the above structure, it is necessary to determine and fix the required position of the support piece portion of the clip with respect to the guide hole according to the thickness of the object to be sandwiched, which is difficult to use. In addition, due to the structure, when positioning the clip support piece portion with respect to the guide hole, the support piece portion of the clip is tilted to the guide hole without completely removing the pressing force on the top surface uneven portion of the support piece portion of the presser. If it is moved along, the unevenness of the upper surface unevenness portion rubs against the presser and wears, and there is a problem that the support piece portion cannot be fixed at the required position of the guide hole.
Japanese Utility Model Publication No. 63-94792

  The problem to be solved by the present invention is that the entire clip is a shaft cylinder or a cap when a thing to be clamped is clamped so that a relatively thick object can be clamped with a simple structure and can be easily assembled. Attaching a clip for writing instruments that lifts away from the surface of the cylinder and does not cause malfunction of the clip due to wear of each member for attaching the clip, even if the clip is clamped to the object to be clamped for a long time. The structure is proposed.

The present invention
“1. A movable piece having an inclined surface on one end and a first guide groove formed on the inclined surface along the inclined surface in an axial tube or cap tube having a clip mounting hole that opens rearward. The rear end of the clip is slidable in the axial direction so that the rearmost end is located on the clip mounting hole side, and is urged rearward through a spring. A first locking projection that can be locked to the first guide groove on the front wall surface of the leg, and curved toward the front wall along the rear wall on the rear wall of the leg. A clip provided with an arc-shaped second locking protrusion is disposed by inserting a leg portion into the clip mounting hole and locking the first locking protrusion in the first guide groove of the movable piece. The rear center of the clip is the same as the center point of the arc of the second locking protrusion of the clip that can be locked to the front wall surface of the clip. A plug member provided with a second guide groove having a bottom surface formed in an arc shape whose radius as a center point is substantially the same as or shorter than that of the arc, and the second locking protrusion of the clip is provided in the second guide groove. Locking and fixing in the shaft cylinder or cap cylinder, the entire clip is guided by the first guide groove and the second guide groove and lifted away from the surface of the shaft cylinder or cap cylinder. A mounting structure for a writing instrument clip.
2. The first locking protrusion of the clip is formed to be narrower than the width of the front wall surface in the axial diameter direction and protrudes forward from the front wall surface, and the rear wall surface of the clip is an arc of the second locking protrusion of the clip. The center point of the clip is formed in an arc shape having a radius longer than that of the arc, and the second locking projection of the clip is formed narrower than the width of the rear wall surface in the axial diameter direction. The rear wall of the clip is formed in an arc shape having a radius that is longer than the center of the arc of the second locking projection of the clip. 2. The writing instrument clip mounting structure according to claim 1, wherein the front wall surface of the member abuts. "
It is.

  The first locking protrusion provided on the clip may be the first locking protrusion formed on the front wall surface of the leg, or a protrusion narrower than the width of the front wall surface in the axial radial direction may be provided in front of the front wall surface. What provided as a 1st latching protrusion may be sufficient. Similarly, the second locking projection provided on the clip may have a rear wall surface of the leg as a second locking projection, or a projection that is narrower than the width of the rear wall surface in the axial radial direction behind the rear wall surface. The shape which protruded the part may be sufficient.

  The clamping force for clamping the clip to be clamped is such that the clip body always approaches the surface of the shaft cylinder or the cap cylinder by the action of the inclined surface of the movable piece urged backward by the spring inserted into the inner cylinder. Since the force to push down in the direction to be used is the basis, a clip having a desired clamping force can be obtained by selecting a spring having a desired elastic force.

  Since the present invention is structured as described above, even if a relatively thick object such as a notebook, magazine, or pocket of a bag is inserted into the clip, the entire clip is lifted in a direction away from the surface of the shaft tube or the cap tube, so that it can be held. Since the clip is lifted along the guide groove, the movement is smooth, and a special operation for clamping according to the thickness of the object to be clamped is not required, and it is easy to use. Further, the structure is simple, the assembly is not complicated, and there are great advantages in terms of manufacturing costs. In addition, since the wear of the clip of each member is less likely to occur, there is no risk of the clip malfunctioning when used for many years.

  Since both the second locking protrusion of the clip and the second guide groove of the plug member are formed in an arc shape, and the second locking protrusion of the clip is locked to the second guide groove of the plug member, Not only the entire clip is lifted away from the surface of the shaft tube or cap tube, but also the tip of the clip body is lifted in the direction of expanding from the surface of the shaft tube or cap tube in an arc shape. The distance from the surface of the cylinder or the cap cylinder is increased, and there is an effect that a thicker object can be held.

  As described above, the clip is not lifted straight in the axial radial direction by the locking of the arc-shaped second locking projection to the arc-shaped second guide groove. If the front wall surface is a wall surface extending straight in the axial direction, a part of the rear wall surface of the clip may come into contact with the front wall surface of the plug member when the clip is moved. Although it is necessary to provide the protrusion partly protruding from the rear wall surface, there arises a problem that the length in the axial direction becomes unnecessarily long in design, but by adopting the structure of the invention according to claim 2, Such problems can be solved.

  Further, when the front wall surface and the rear wall surface are the first locking protrusions and the second locking protrusions, the first locking protrusions and the second locking grooves are locked to the first guide grooves and the second guide grooves. The clip may swing in the axial radial direction depending on the dimensional relationship between the width dimension of the stop protrusion in the width direction and the width dimension in the width direction of the first guide groove or the second guide groove. By adopting the structure of the invention, there is an effect that the rocking can be suppressed by bringing the rear wall surface of the clip into contact with the front wall surface of the plug member.

A writing instrument clip mounting structure according to the present invention will be described below with reference to the drawings. For convenience, the present embodiment will be described as a structure attached to the rear end of the shaft cylinder, but the scope of the present invention is not limited to the embodiment.
FIG. 1 is a longitudinal sectional view of a shaft cylinder portion to which a clip is attached, showing an embodiment of the invention. FIG. 2 is a side view of the clip in the embodiment of the present invention. FIG. 3 is an enlarged cross-sectional view taken along line AA in FIG. FIG. 4 is a diagram showing a state of operation of the clip in FIG. 5 is a cross-sectional view taken along the line BB in FIG. 6 is a cross-sectional view taken along line CC in FIG.

  The attachment structure of the clip for a writing instrument of the present embodiment has a structure in which the clip 1 is attached to a clip attachment hole 3 provided in a rear end portion 2a of a shaft cylinder that houses a writing body (not shown) in the front. is there. As shown in FIG. 1, in the rear end portion 2a of the shaft tube, an inner tube 5 having one end opened and having a bottom portion 4 on the other end, the bottom portion 4 toward the front side of the shaft tube 2 (left side in the figure). Toward, it is fixed inside the shaft cylinder 2 near the clip mounting hole 3 with an adhesive. The bottom 4 of the inner cylinder 5 is in contact with a ring-shaped protrusion 6 formed on the inner wall surface of the shaft cylinder 2 to prevent the inner cylinder 5 from moving forward and to be positioned in the shaft cylinder 2. . Note that members such as the internal structure of the shaft cylinder and the writing body, which are not related to the attachment of the clip to the shaft cylinder, are omitted.

  A coil spring 7 is inserted into the inner cylinder 5 with one end abutting against the bottom portion 4 of the inner cylinder 5, and a movable piece 9 having one end as an inclined surface 8 is disposed at the rear (right side in the drawing). The end surface 10 of the coil spring 7 is brought into contact with the other end of the coil spring 7 so that the rearmost end portion 11 on the rear side of the inclined surface 8 is positioned in the clip mounting hole 3. Is slidably arranged. The inclined surface 8 is provided with a first guide groove 12 formed by opening both ends along the inclined surface 8.

  The clip mounting hole 3 is opened to extend to the rear end of the shaft tube 2, and the clip 1 including the clip body 13 and the leg portion 14 extending in the axial center direction is used, and a part of the leg portion 14 is a shaft tube 2. The rear opening 15 is inserted into the clip mounting hole 3 so as to be positioned. As shown in FIGS. 2 and 3, the lower end portion 16 of the leg portion 14 of the clip 1 is provided with an extension portion 17 that extends forward (left side in the drawing), and at the tip of the extension portion 17. Is provided with a first locking projection 18 projecting from the first guide groove 12 having a width smaller than the width of the extending portion 17 in the axial direction. The rear wall surface 19 of the leg portion 14 is provided with an arcuate second locking projection 21 that is curved toward the front wall surface 20 along the rear wall surface 19, and the rear wall surface 19 is also provided with the second wall surface 19. A radius that is the same as the center point of the arc of the locking projection is formed in an arc shape having a longer diameter than the arc. The clip 1 is disposed by locking a first locking protrusion 18 provided on the extending portion 17 in the first guide groove 12 of the movable piece 10.

  A plug member 22 is fixed to the rear of the leg portion 14 of the clip. The stopper member 22 is provided with a locking portion 23 that can be locked to the clip mounting hole 3 of the shaft tube 2, and the locking portion 23 is locked to the clip mounting hole 3 so that the shaft tube 2 cannot be rotated. Yes (see FIGS. 1 and 6), and the clip 2 is prevented from falling out from the rear opening 15 of the shaft cylinder 2.

  The front wall surface 24 on the leg 14 side of the clip 1 of the plug member 23 is formed in an arc shape in which the radius that is the same as the center point of the arc of the second locking projection 21 of the clip 1 is longer than the arc. It is. The front wall surface 24 is a circle whose radius is the same as the center point of the arc of the second locking projection 21 that can be locked by the second locking projection 21 of the clip 1. A second guide groove 26 having a bottom surface 25 formed in an arc shape is provided, and the second locking protrusion 21 of the clip 14 is locked in the second guide groove 26.

  As shown in FIG. 4, in the clip 1, the first locking protrusion 18 is locked in the first guide groove 12 of the movable piece 9, and the second locking protrusion 21 is locked in the second guide groove 26 of the plug member 22. When an object to be clamped (not shown) is inserted between the clip body 13 and the surface of the shaft tube 2, the clip 1 is guided by the first guide groove 12 and the second guide groove 26, and the clip 1 is The distance between the first guide groove 12 and the second guide groove 26 in the axial center direction is shortened by the lifting (moving upward in the drawing) and the amount of the lifting, but the movable piece 9 extends the leg 14 of the clip 1. Since the protrusion 17 moves while being pushed forward (left side in the drawing), the separation distance in the axial direction between the first guide groove 12 and the second guide groove 26 becomes short, and the clip 14 cannot be lifted. The extension portion 17 of the clip 1 Until positioned in the vicinity of the lip mounting hole 3 it can be lifted. Further, the clip 1 is not only lifted straight in the direction perpendicular to the axial direction, but the second locking projection 21 and the second guide groove 26 are formed in an arc shape, so that the tip of the clip body 13 is The part 13a is greatly opened, and it is possible to clamp a relatively thick object to be clamped.

  In the present embodiment, when the object to be clamped is inserted between the surface of the clip main body 13 and the shaft cylinder 2, a ball portion 27 is provided on the back surface of the distal end portion 13a of the clip main body 13 for clamping the object to be clamped. Although the protruding portion 28 is provided on the surface of the shaft cylinder 2 facing the ball portion 27, the ball portion 27 and the protruding portion 28 may not be provided.

  The attachment structure of the clip for a writing instrument of the present invention can hold a relatively thick object, and the shaft cylinder and the cap to which the clip is attached may be made of synthetic resin, metal or wood, and is adopted without any limitation. The material of the clip can also be employed without limitation.

It is a longitudinal cross-sectional view of the axial cylinder part which attached the clip which shows the Example of this invention. It is a side view of the clip in the Example of this invention. It is an expanded sectional view of the AA line part in FIG. It is the figure which showed the state of the operation | movement of the clip in FIG. It is sectional drawing of the BB line part in FIG. It is sectional drawing of the CC line part in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Clip 2 Shaft cylinder 3 Clip attachment hole 7 Coil spring 8 Inclined surface 9 Movable piece 12 1st guide groove 13 Clip main body 14 Leg part 18 1st latching protrusion 19 Back wall surface 21 2nd latching protrusion 22 Plug member 24 Front wall surface 26 Second guide groove

Claims (2)

  A movable piece having an inclined surface at one end and a first guide groove formed along the inclined surface in the axial tube or cap tube having a clip attachment hole opened at the rear is provided to the rear of the inclined surface. The rear end of the clip is slidable in the axial direction so that it is positioned on the clip mounting hole side, and is urged rearward through a spring, and the clip body and legs are located behind the movable piece. A first locking projection that can be locked to the first guide groove on the front wall surface of the leg portion, and a circular arc shape curved toward the front wall surface along the rear wall surface on the rear wall surface of the leg portion. The clip provided with the second locking protrusion is disposed with the leg portion inserted into the clip mounting hole and the first locking protrusion locked in the first guide groove of the movable piece. The center point of the arc of the second locking projection of the clip that can lock the second locking projection of the clip to the front wall surface A stopper member provided with a second guide groove having a bottom surface formed in an arc shape whose radius is substantially the same as or shorter than the arc, and the second locking protrusion of the clip is locked in the second guide groove. The entire clip is fixed in the shaft cylinder or the cap cylinder, and the entire clip is guided by the first guide groove and the second guide groove so as to be lifted away from the surface of the shaft cylinder or the cap cylinder. Mounting structure for writing instrument clips.   The first locking protrusion of the clip is formed to be narrower than the width of the front wall surface in the axial diameter direction and protrudes forward from the front wall surface, and the rear wall surface of the clip is an arc of the second locking protrusion of the clip. The center point of the clip is formed in an arc shape having a radius that is longer than the arc, and the second locking protrusion of the clip is formed narrower than the width in the axial radial direction of the rear wall surface. The rear wall of the clip is formed in an arc shape having a radius that is longer than the center of the arc of the second locking protrusion of the clip. The attachment structure for a clip for a writing instrument according to claim 1, wherein the front wall surface of the member is brought into contact.

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