JP2801167B2 - Writing implement with rotating ring suspension - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a writing instrument such as a ballpoint pen or a mechanical pencil, to which a string hanging from the neck is attached, a desk stand is connected by a chain, a key ring,
The present invention relates to a writing instrument that uses accessories such as bells by connecting them with strings or chains.

[0002]

2. Description of the Related Art Conventionally, a member constituting a writing instrument is provided with a hole through which a string or a chain for connecting a string or a chain is provided, for example, at the head or crown of a cap, or at a rear end of a shaft or a part of a tail plug. Japanese Utility Model Application Laid-Open No. 52-81224 and Japanese Utility Model Application Laid-Open No. 2-71685 are examples of forming the mounting portion, and a hole for passing a ring for connecting a string or a chain to a shaft or an attached member is formed. Japanese Laid-Open Patent Publication No. 52-87331 and Japanese Utility Model Laid-Open Publication No. 58-26588, etc. Further, a member other than the member constituting the shaft is provided with a means for attaching a string or a chain as in the present invention, and this is integrated with the shaft. Examples of the manner in which the method is performed are described in Japanese Utility Model Publication No.
-11985 and the like.

[0003]

In the prior art, as described above, various examples of means for attaching a string or a chain to a writing instrument are disclosed. There is a drawback that it is difficult to use because the string or the chain or small objects connected to the string or the chain are stuck to the shaft or the back of the hand and obstruct it. Specifically, among writing instruments, especially ballpoint pens and mechanical pencils are often used for writing over a long period of time. Therefore, in order to heal the fatigue of fingers during writing, the user rotates the shaft with the fingertips unconsciously but quite frequently. Due to this, long strings and chains may be wrapped around the shaft, and small items that are connected with relatively short strings or chains as accessories may cause small objects to hit the back of the hand and reduce the concentration of nerves. was there.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and is directed to a writing instrument in which a string or a chain is attached to a shaft or a member constituting the shaft. The part was provided in a protruding shape on the outer peripheral surface and formed in a ring shape,
A rotating ring suspending member is provided separately from the member constituting the shaft, and the rotating ring suspending member is rotatably fitted in the circumferential groove of the shaft or the attached member constituting the shaft. This is a means to solve the problem.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention relates to a writing instrument comprising a writing instrument and a string or a chain attached to a part of the member. Is designed so that it does not cling to the shaft or back of the hand, and a rotatable ring suspension member in which a string or chain attachment portion is provided in a protruding shape on its outer peripheral surface to form a ring shape, It is configured to be rotatably fitted in a circumferential groove provided on the outer periphery of a member to be mounted such as a body. Thus, when the shaft is rotated with the fingertip in a state where the string or the chain touches the shaft or the back, the rotating ring suspension member has the resistance that the string or the chain connected to the attachment portion touches the shaft or the back, Slip with respect to the shaft body without changing its position in the peripheral groove of the fitted member to be fitted, so that only the shaft body rotates and the string or chain is prevented from clinging to the shaft body or back of the hand Things.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings showing embodiments. Although the shapes are different, the same reference numerals are used for members and parts used for the same purpose.

FIG. 1 shows an embodiment of the present invention.
A peripheral groove 1 in the axial rear end portion outer peripheral plane of the shaft 1 made of rear shaft 1b and
c, and the rotatable ring suspension member 3 formed in a ring shape with the attachment portion 3a of the cord 2 provided in a protruding shape on the outer peripheral surface thereof is rotatably fitted into the circumferential groove. 1 shows a knock-type ballpoint pen provided with a rotating ring suspension member with a string.

The shaft body 1 is a grip portion 1 to be gripped during writing.
d and a rear shaft 1b formed by rotatably mounting the rotating ring suspension member 3 in the circumferential groove 1c thereof, are integrally formed by using a connection means such as a screw fitting, and A hollow pen-shaped refill and a retraction mechanism member for reciprocating the brush end of the refill from the tip opening 1e of the front shaft in association with the pressing operation of the knock member 4 are accommodated in the hollow interior (not shown). ). In the embodiment, the shaft body 1 is a shaft body of a knock-type ballpoint pen. However, it is needless to say that a cap-type ballpoint pen may be another writing implement such as a mechanical pencil. It is well known from the prior art that the form of the members constituting the hologram is different and the form of the accessory parts is different.

The rotating ring suspension member 3 has a mounting hole 3c for attaching the string or chain 2 directly or via a connection medium (for example, a connection ring, not shown) on the outer peripheral surface of a ring portion 3b having a predetermined width. Is formed in a protruding shape, and is rotatably fitted into the above-described circumferential groove 1c of the shaft rear shaft 1b. That is, the inner diameter of the ring portion of the rotating ring suspension member is set slightly smaller than the outer diameter of the rear shaft and larger than the circumferential groove diameter, and the ring portion width is set smaller than the circumferential groove width. The attachment to the rear shaft circumferential groove is based on a so-called press-fit drop-in fitting method in which the ring portion temporarily increases in diameter, passes through the rear shaft rear end, and fits into the circumferential groove. Thus, since the relationship between the rotating ring suspension member located in the circumferential groove and the circumferential groove has an appropriate gap in both the radial direction and the width direction, as a matter of course, free rotation is guaranteed. The engagement relationship that does not separate from the peripheral groove is also guaranteed at the same time.

[0010] It is considered that there are various embodiments of the rotating ring suspension member 3 , but it is roughly classified into an embodiment obtained by molding of a resin material. As shown in Fig. 2, the ring portion 3b has a ring shape. Another Embodiment Processed with a Metal Material As shown in FIG. 3, a ring portion 3b is partially cut away to form a discontinuous portion 3d. The latter elastic part is given the freedom to expand in diameter during mounting, but after fitting into the circumferential groove 1c, it is restored to its shape at the time of molding, and free rotation is guaranteed in the circumferential groove, As in the embodiment shown in FIG.

When the rotating ring suspension member 3 is fitted into the circumferential groove 1c of the member to be mounted (the rear shaft 1b in the embodiment), it is mounted in a press-fit state while expanding the diameter of the ring portion 3b. Is preferably chamfered. Therefore, in the embodiment shown in FIG. 2, the insertion surface may have a tapered chamfer, and in the other embodiment shown in FIG. 3, the insertion surface may be in either the left or right direction. It is good to be formed in.

FIG. 3 shows another embodiment processed with a metal material.
The rotating ring suspension member 3 has a ring portion 3b and a mounting portion 3a.
Can be processed separately, and can be integrally processed by soldering, brazing, or the like. In addition, it is not conceivable that the means having the discontinuous portion 3d in the ring portion may be implemented using a resin material. However, if the string or the chain 2 is pulled strongly, the ring portion easily expands in diameter and the circumferential groove is formed. 1c, a metal material having excellent rigidity and elasticity should be used.

Further, since the outer peripheral shape of the attached member to which the rotating ring suspension member 3 is attached is likely to be a circular shape in many cases, the attached portion is expressed as a peripheral groove 1c, but this is an irregular shape such as a polygonal shape. Even if there is, as long as the rotating ring suspension member is in the attached portion and the engagement relationship that ensures freedom of rotation and prevention of disengagement is made, the purpose intended by the present invention can be achieved, The attached portion does not necessarily have to be continuous as a circumferential groove. The point is that a groove (not shown) which is concentric with the inner diameter of the ring portion smaller than the inner diameter of the ring portion 3b instead of the circumferential groove may be provided. That is self-evident.

According to the present invention, there is provided a shaft
The rotating ring suspension member 3 attached to the attachment portion 3a of the string or the chain 2 attached to the inside of the peripheral groove 1c of the first ring 1c can be used while rotating the shaft with a fingertip during writing. Slips in the circumferential groove of the shaft due to the resistance to contact with the shaft and the back of the hand, so that strings and chains are prevented from clinging to the shaft and the back of the hand, eliminating the feeling of unpleasant writing. Things.

[0015]

The present invention has been used as a souvenir or a novelty product in demand expansion means, such as a writing implement with a string hanging from the neck or a chain connected to a desk stand, or a small object such as a key ring or a bell. Although it is a writing instrument connected with a pen, a ballpoint pen that often writes for a long time with high writing pressure is unconscious because it heals tiredness of fingers during writing, and in the case of a mechanical pencil, it changes the lead contact angle of the lead core However, since the strings and chains are used quite often while turning the shaft with their fingertips, long strings and chains are stuck to the shaft and back of the hand and become obstacles, and relatively small strings and chains are used as accessories as accessories. The objects connected by the drawback have the drawback that small objects hit the back of the hand every time they rotate and the nerves cannot be concentrated, so they end up in the desk or inside the glove compartment, and are effective as souvenirs and novelties It can not be sufficiently exhibited.

According to the present invention, the attachment member for the string or the chain is provided separately from the body of the writing implement, thereby enabling the attachment member for the string or the chain to be rotatably connected to the body of the writing implement. Thereby, even when the writing implement body is rotated with the fingertip during writing, the discomfort due to the prior art described above, such as the string or the chain clinging to the shaft or the back of the hand or the small objects hitting the back of the hand, is wiped out. Therefore, it greatly contributes to the further expansion of writing instruments as souvenirs and novelty products.

[Brief description of the drawings]

FIG. 1 is a front view showing an appearance of a knock-type ballpoint pen with a cord according to an embodiment of the present invention.

FIG. 2 is an enlarged explanatory view of a rotating ring suspension member of the embodiment;
(A) is a front view, (b) is a longitudinal sectional view of (a).

FIG. 3 is an enlarged explanatory view of a rotating ring suspension member according to another embodiment, wherein (a) is a front view and (b) is a longitudinal sectional view of (a).

[EXPLANATION OF SYMBOLS] 1 shaft 1a destination shaft 1b rear shaft (attached member) 1c circumferential groove 2 cord or chain 3 rotating ring suspension members 3a attaching portion 3b ring portion 3c mounting hole

Claims (1)

(57) [Claims] 1. A writing instrument with a string or a chain in which a string or a chain is attached to a part of a member constituting the writing instrument, wherein a string or chain attachment portion is provided in a projecting shape on an outer peripheral surface thereof and formed into a ring shape. A writing implement provided with a rotating ring suspending member, wherein the ring suspending member is rotatably fitted in a circumferential groove of the attached member.