JPS6227437Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement in a clip that is attached to a cylindrical body such as a barrel or a cap of a writing instrument.

Well-known clips of this type can be roughly divided into those that utilize the elasticity of the clip itself and those that are constructed with a spring at the attachment point between the clip and the cylindrical body.

In the former case, if the end of the clip attached to the cylindrical body is repeatedly lifted off the side opposite to the attachment side, the elasticity will be lost due to deformation of the fulcrum part near the attachment part or collapse of the internal structure of the fulcrum part. However, the latter has the disadvantage that the clamping pressure at the opposite end is lost and the clip does not perform its original function. Due to the complicated structure of the part, there is the inconvenience that it cannot be installed on a shaft cylinder equipped with a knocking mechanism or a feeding mechanism, which is a disadvantage in that its applications are extremely limited.In addition, it is difficult to devise ways to prevent the spring from repeatedly bending to the limit. Is it the clip attachment part?
It has to be applied to the mounting part of the cylinder, which has the disadvantage that the structure of the mounting part and the assembly for mounting are complicated.

The present invention was developed by focusing on such well-known clips, and whether the leg rod itself is a rigid or elastic body, or whether it is integrated with or separate from the cylinder, it can be used to The separate clip attachment configuration, with or without springs, is easy to configure and versatile, and there is little risk of permanent loss of clamping pressure at the opposite end of the leg rod. The purpose is to provide useful clips.

If some embodiments are explained with reference to the drawings,
Each drawing shows an example in which the leg rod 1 is integrated with the shaft cylinder body 2 or the cap cylinder body 2, and the arrangement relationship of the leg rod 1 and the movable contact 3 is slightly different in each figure. being changed.

In the first example shown in FIG. 1, a spring 4 is installed in an inner cavity 101 that is recessed from the side facing the cylinder body 2 to the opposite side near the end of the leg rod 1 on the side opposite to the mounting side.
At the same time, an inner tube 5 having an inwardly engaging edge 501 is attached, and the inwardly engaging edge 501 is placed on the cylindrical body side.
Further, the surface facing the cylindrical body 2 is formed into a circular arc such as a hemispherical shape, and the end of the leg rod side (opposite to the surface facing the cylindrical body side) is a hollow movable member with an outward engaging edge 301. Attach and configure the contactor 3. To attach the movable contact 3, attach the outward engaging edge 301 to the inner tube 5.
The spring 4 is installed so that the outward engaging edge 301 is engaged with the inward engaging edge 501 of the inner tube 5, and one end of the spring 4 is fitted into the hollow movable contact 3. Thus, the spring 4 is interposed between the leg rod 1 and the movable contact 3, and the contact is urged toward the cylinder body 2.

In the second example shown in FIG. 2, a through hole is bored near the end of the leg rod 1 on the side opposite to the mounting side, from the side facing the cylinder body 2 to the opposite side, and in the through hole. A cover plate 102 is attached to the end opposite to the cylindrical body side to form a lumen 101 similar to the first example, and the spring 4 is inserted into the lumen, and a lid plate 102 is attached to the end of the cylindrical body side of the lumen 101. The movable contact 3 is attached so that the outward engagement edge 301 of the movable contact 3 is engaged with the inward engagement edge 103 of the constructed leg rod 1. The configuration of the movable contactor 3 itself is the same as in the first example, and the intervening configuration of the spring 4 is also the same as in the first example.
Similar to the example. Therefore, the movable contact 3
As in the example, it is pressed against the cylinder by the spring 4.

In the third example shown in FIG. 3, a through hole is drilled near the end of the leg rod 1 on the side opposite to the mounting side, from the side facing the cylinder body 2 to the opposite side. A small cylinder 102' is attached to the side opposite to the cylinder side to form the same inner cavity 101 as in the first example, and the spring 4 is inserted into the internal cavity, and a leg is formed at the end of the internal cavity 101 on the cylinder side. The movable contact 3 is attached so that the outward engagement edge 301 of the movable contact 3 is engaged with the inward engagement edge 103 of the rod 1. The configuration of the movable contact 3 itself and the spring 4
The intervening structure and the like are the same as those of the two embodiments.

The three embodiments described above represent an example in which the leg rod 1 is integrally formed with the cylinder body 2, an example in which the movable contactor 3 is formed in a hollow structure, etc., but the present invention is not limited to these examples. , the clip constituted by the leg rod 1 may be a well-known band clip separate from the cylinder 2 or a clip of other configuration, and the movable contact 3 has an outwardly directed engaging edge 301. If it is, it may be a solid body made by dividing a sphere in half. Although the spring 4 is shown to be a coil spring, it is not limited to these, and any spring that presses the movable contact 3 toward the cylinder body may be used, so it may be a plate spring, for example.

As is clear from the above description, the present invention has a spring interposed between the leg rod and the movable contact.
Whether the leg rod is a rigid or elastic body, whether it is integrated with or separate from the cylinder, or whether the leg rod is separate from the cylinder.
It is possible to apply strong clamping pressure to the side facing the cylinder body near the end opposite to the mounting side of the leg rod, regardless of how or when it is installed. . Therefore, it is possible to maintain a strong clamping pressure near the opposite end of the leg rod indefinitely, and an excellent clipping function is exhibited. Then, the leg rod side of the movable contact is placed in the inner cavity of the leg rod, the movable contact is attached to the leg rod, and the movable contact is pressed toward the cylindrical body side by the spring, thereby forming the leg. An outward engaging edge formed on the movable contact can be engaged with an inward engaging edge formed on the inner cavity of the rod. Therefore, it is possible to eliminate the fear of the movable contact falling off from the leg rod,
It can be used with peace of mind, and the clip function can be more reliably performed.

Therefore, it is possible to provide high-quality clips and achieve the intended purpose.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway longitudinal sectional front view showing a first example of the clip of the present invention, FIG. 2 is a front view of the second example,
FIG. 3 is a front view of the third example. In the figure, 1 is a leg rod, 2 is a cylinder, 3 is a movable contact,
4 is a spring.

Claims (1)

[Scope of utility model registration request] Near the end of the leg rod on the side opposite to the mounting side, an inner cavity is formed from the side facing the cylindrical body to the opposite side, and an inwardly engaging edge is formed on the cylindrical side of the lumen, and the movable contact an outward engaging edge is formed on the leg rod side, the leg rod side of the movable contact is disposed within the inner cavity to attach the movable contact to the leg rod, and a spring is disposed between the leg rod and the movable contact. A clip for a writing instrument that has a movable contact that is pressed against the cylindrical body through an intervening device.