JP3865341B2 - Clip attachment device for writing instruments - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a clip attachment device for a writing instrument, and more particularly to a clip attachment device for a writing instrument for attaching a clip to an attachment body such as a shaft tube, a cap, or a tail crown.
[0002]
[Prior art]
Conventionally, in order to insert a writing instrument into a pocket or the like of a clothes, a clip is integrally or separately attached to an attachment main body including a shaft tube, a cap, a tail crown or the like constituting the writing instrument.
[0003]
For example, when a synthetic resin clip is integrally formed with a writing instrument, the clip will not fall off or rotate, but the clip may be broken and a separate member such as a strong metal should be used. Was impossible.
[0004]
On the other hand, examples of making the clip separately from the shaft cylinder and the like include the shape of the clip as shown in FIGS. 16 and 17. That is, as shown in FIG. 16, a projecting mounting portion 71 for attaching the metal clip 8 to the rear end outer wall portion of the synthetic resin shaft cylinder 7 is integrally formed, and forward from the rear end surface of the mounting portion 71. An insertion hole for inserting the metal clip 8 was made in advance, and the bent portion 81 of the metal clip 8 was press-fitted and fixed in this insertion hole. Further, as shown in FIG. 17, there is a clip 9 in which a mounting ring 92 is integrated with the clip 9 by being press-fitted into the shaft cylinder 7.
[0005]
[Problems to be solved by the invention]
However, as in these conventional examples, when the clip is made separately from the shaft cylinder and attached to these mounting bodies, the mounting is difficult, or the clip may fall off the mounting body after mounting, There is a problem that the clip mounting portion easily breaks due to rotation or use.
[0006]
Therefore, the present invention eliminates the disadvantages of the conventional writing instrument clip mounting apparatus as described above, and the clip can be mounted with one touch, and the clip does not fall off or rotate after the mounting, and is long. The purpose is to prevent the mounting portion from being broken by the use of the period.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, a clip attachment device for a writing instrument according to the present invention is a clip attached to an attachment main body made of a shaft tube, a cap, a tail crown, or the like of a writing instrument, and attaches guide means for inserting the clip. A pair of upright portions provided facing the longitudinal direction of the main body, and engaging the clip with a connecting portion at the front end of the upright portion of the mounting body at a predetermined distance from the rear end on the back side of the clip. Ri name by providing a stop means, The locking means is a locking projection composed of a sloped portion descending toward the tip of the clip and an upright wall formed at the rear end of the sloped portion, and the latching projection and the bent portion of the clip rear end And sandwiching a part of the mounting body.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of a clip attachment device for a writing instrument according to the present invention will be described below in detail with reference to the accompanying drawings.
FIG. 1 is a view showing an embodiment of a clip attaching device for a writing instrument according to the present invention. In the figure, the clip 1 includes an elongated clip piece 11, a bent portion 12 at the rear end of the clip piece 11, and an engagement protrusion 13 extending forward from the bent portion 12 on the back surface of the clip piece 11. Yes.
[0009]
And the engagement groove | channel 13a is each formed in the base part of the both sides of this engagement protrusion 13 in a longitudinal direction, and it is easy to insert the front-end | tip of the engagement protrusion 13 at the time of attachment to the attachment main body mentioned later. A guiding portion 13b having a sharp tip is formed.
[0010]
Further, a locking projection 14 as a locking means is provided on the back side of the clip piece 11 spaced forward from the engaging protrusion 13. The locking projection 14 is composed of a guide slope 14a that descends toward the front of the clip 1 and a locking upright wall 14b formed at the rear end of the slope 14a.
[0011]
On the other hand, a cap 3 as an attachment body having an opening 31 at the top is detachably fitted to the shaft cylinder 2 of the writing instrument, and stands up against the outside of the cap 3 from the opening 31 toward the front. Standing portions 32 are provided as guide means for the clips. More specifically, these upstanding portions 32 have gaps 33 that allow the engaging protrusions 13 of the clip 1 to be inserted, but the locking protrusions 14 of the clip 1 can be locked on the front surface. It has the connection part 32a. As is clear from FIG. 6, the engagement guide portions 34 projecting from the upright portions 32 so as to face each other project in the gap 33.
[0012]
In addition, the code | symbol 35 is a pinching convex part which narrows the gap of the front-end | tip of the clip 1 and the outer peripheral part of the cap 3 in order to ensure insertion, when inserting a writing instrument in a pocket. Further, the knock member 4 protrudes from the opening 31 of the cap 3.
[0013]
Hereinafter, the assembly operation of the clip attachment device for a writing instrument according to the above embodiment will be described.
The guide portion 13 b at the tip of the engagement protrusion 13 of the clip 1 is opposed and positioned in the opening 31 of the cap 3 and is inserted into the gap 33 of the cap 3. At this time, the engaging grooves 13a at both ends of the clip 1 are engaged with and guided by the engaging guide portions 34 of the standing portion 32 of the cap 3, respectively. In this insertion process, when the inclined portion 14a of the locking projection 14 on the back side of the clip 1 gets over the connecting portion 32a at the front end of the standing portion 32, the upright wall 14b is in contact with the front surface of the connecting portion 32a. 3 is attached.
[0014]
That is, at this time, if the locking projection 14 is provided at a position where the front wall of the bent portion 12 at the rear end of the clip 1 is brought into contact with the rear end of the cap 3, the bent portion 12 and the locking projection are provided. 14, the front and rear of the upright portion 32 of the cap 3 are clamped, so that the clip can be securely locked.
[0015]
Therefore, even if a force in the direction of pulling out the clip is applied to the clip thereafter, the clip does not fall out of the cap, and the clip does not rotate as in the conventional example of FIG. Although the above-described assembling operation has been described in detail, the assembling operation can be easily and surely assembled in a moment with one touch.
[0016]
Next, FIGS. 7 to 15 show a clip mounting device according to another embodiment of the present invention, and this embodiment reverses the concave-convex relationship of the clip mounting means to the mounting body of the above embodiment. Is.
[0017]
That is, the clip 5 includes an elongated clip piece 51, a bent portion 52 at the rear end of the clip piece 51, and an engaging protrusion 53 extending forward from the bent portion 52 on the back surface of the clip piece 51. A locking groove 54 as a locking means is provided in the width direction at the front end of the engaging protrusion 53. The rear end of the locking groove 54 has an upright wall portion 54a.
[0018]
Further, the outer side of the bent portion 52 at the rear end of the clip 5 is formed in an arc shape, and a right angle portion 52a is provided on the inner side. The right angle portion 52a of the bent portion 52 functions as a stopper / positioning means when the clip 5 is set on the shaft tube 6. Further, as is apparent from FIG. 8, a guide portion 53 a having a sharp tip is formed at the front portion of the engagement protrusion 53 protruding from the clip piece 51 on both sides. In addition, the code | symbol 55 is a clamping convex part which narrows the gap of the front-end | tip of the clip 5 and the outer peripheral part of the axial cylinder 6 in order to ensure insertion, when inserting a writing instrument in a pocket etc. in the figure.
[0019]
On the other hand, as shown in FIGS. 12 to 14, the outer wall portion spaced apart from the rear end opening of the shaft cylinder 6 as a mounting body by a predetermined distance is locked to the locking groove 54 on the back side of the clip 5. A protrusion 61 is provided. A guide groove 62 in which the guide protrusion 53 of the clip 5 is inserted and guided is formed in the longitudinal direction at the rear portion of the locking protrusion 61.
[0020]
As shown in the figure, if the thickness of the upright portion 63 as the guiding means extending in the longitudinal direction on both sides of the shaft cylinder 6 is made thinner than the thickness of the cylindrical portion which is the main body of the shaft cylinder 6, it bends outward. Therefore, when the clip 5 is inserted, there is an advantage that the upright portion 63 is easily expanded by the engaging protrusions 53 on both sides of the clip 5 in the guide groove 62 formed in the longitudinal direction of the upright portion 63.
[0021]
Therefore, when the clip 5 according to the above configuration is attached to the shaft tube 6, when the tip end of the clip 5 is inserted between the upright portions 63 of the shaft tube 6 from the rear side, the engaging protrusion 53 is caused to move into the shaft tube by the guide portion 53 a of the clip 5. Six guide grooves 62 are introduced. Then, the clip 5 is advanced along the guide groove 62 of the shaft tube 6, and the locking groove 54 of the shaft tube 6 reaches the locking protrusion 61 of the shaft tube 6 and is fitted and fixed thereto.
[0022]
Therefore, at this time, if the locking projection 61 is provided at a position where the rear wall of the right angle portion 52a of the rear end bent portion 52 of the clip 5 is brought into contact with the rear end of the shaft tube 6, the bent portion 12 and the locking groove 54 can reliably hold the rear part of the shaft tube 6 back and forth, so that the clip can be locked securely.
[0023]
In addition, since the guiding portion 53a is formed at the front end of the engaging protrusion 53 that protrudes laterally from the middle of the clip 5 in the forward movement process of the clip 5, the engaging protrusion 53 is formed in the guide groove of the shaft tube 6. As shown in FIG. 15, the clip 5 is securely attached to the shaft cylinder 6 of, for example, a mechanical pencil.
[0024]
【The invention's effect】
Clips can be attached with a single touch using the guide means provided on the clip and the mounting body, and after installation, the clip does not fall off or rotate due to the locking means provided on the clip and the mounting body. Even if the period is used, the clip is not broken.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a clip attachment device for a writing instrument according to an embodiment of the present invention.
2 is an assembled perspective view of the clip attachment device of FIG. 1. FIG.
FIG. 3 is a plan view of the clip attachment device of FIG. 1;
4 is a cross-sectional view taken along line AA in FIG.
FIG. 5 is a front view of the clip mounting device of FIG. 1;
6 is a cross-sectional view taken along line BB in FIG.
FIG. 7 is a front view of a clip according to another embodiment of the present invention.
8 is a plan view of the clip of FIG. 7. FIG.
9 is a bottom view of the clip of FIG. 7. FIG.
10 is a side view of the clip of FIG. 7;
11 is a cross-sectional view taken along line CC of the clip of FIG.
12 is a plan view of the rear shaft of FIG. 7. FIG.
13 is a right side view of the rear shaft of FIG. 7. FIG.
14 is an enlarged cross-sectional view of a main part of the rear shaft in FIG. 12;
15 is a cross-sectional view showing a state where the clip of FIG. 7 is attached. FIG. 16 is a front view showing a state where a conventional clip is attached to a shaft cylinder.
FIG. 17 is a front view showing another conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Clip 11 Clip piece 12 Bending part 13 Engagement protrusion 13a Engagement groove 13b Guide part 14 Locking protrusion (locking means)
14a Slope 14b Upright wall 2 Shaft cylinder 3 Cap (mounting body)
31 Opening 32 Standing part (guide means)
32a connecting part 33 clearance 34 engaging guide part 35 clamping convex part 4 knocking member 5 clip 51 clip piece 52 bent part 52a right angle part 53 engaging protrusion 53a guide part 54 locking groove (locking means)
54a Standing wall 55 Clamping convex part 6 Shaft cylinder (mounting body)
61 Locking projection 62 Guide groove 63 Standing portion (guide means)

Claims (3)

A clip attached to an attachment body composed of a shaft tube, a cap or a tail crown of a writing instrument, and the guide means for inserting the clip is provided on a pair of upright portions provided facing the longitudinal direction of the attachment body, Ri from the rear side of the rear end of the clip positioned at a predetermined distance name provided locking means for locking the clip on the connecting portion of the upright portion front end of the mounting body, The locking means is a locking projection composed of a sloped portion that descends toward the tip of the clip and an upright wall formed at the rear end of the sloped portion. A clip attachment device for a writing instrument, wherein a part of the attachment main body is sandwiched between. Engagement protrusions projecting outward are provided on both sides of the rear part of the clip, and the mounting body is provided with a pair of upright parts formed with guide grooves into which the engagement protrusions are engaged and guided. The clip attachment device for a writing instrument according to claim 1 . The clip attachment device for a writing instrument according to claim 2, wherein a guide portion is provided at each end of the engagement protrusion.

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