JPH0623764Y2 - Bolt mounting guide for arm - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a guide for a bolt that is passed through a metal arm attached to a utility pole or the like.

[Prior Art] Conventionally, a bolt has been used to attach a wrist wire to a utility pole or the like. FIG. 7 is a perspective view showing a conventional method in which a bolt for such attachment is passed through a hole in a arm member. Referring to FIG. 7, holes 2 and 3 are formed in the pair of facing surfaces of arm member 1. A bolt 4 is passed through the holes 2 and 3, and a male screw portion at the tip of the bolt 4 is screwed and attached to a female screw portion of a utility pole or the like.

[Problems to be Solved by the Invention] However, in such a conventional method, although the bolt can be easily inserted into the hole 3 on the front side, the hole 2 is located away from the hole 3. Therefore, there is a problem that the tip of the bolt 4 passing through the hole 3 is difficult to pass through the hole 2.

An object of the present invention is to solve the above-mentioned conventional problems and provide a bolt mounting guide for a wrist wire which allows a bolt to be easily inserted through a pair of holes formed in the wrist wire.

[Means for Solving the Problems] A bolt mounting guide for a wristband according to the present invention is a tubular body having an inner diameter into which a bolt can be inserted and an outer diameter into which a pair of holes in the armband can be inserted, and one end of the tubular body. A substantially conical cap that is inserted into the inside of the cylinder, a flange portion that is provided at the other end of the cylinder body, and that abuts the peripheral portion of the hole when the cylinder body is inserted into the hole, And a locking protrusion provided on the outer peripheral surface of the cylindrical body separated by the thickness of the plate member and having an inclination that rises toward the flange portion.

The material used for the bolt mounting guide of the present invention is not particularly limited, but a plastic guide is preferable from the viewpoint of ease of handling, ease of molding, and price.

[Operation] The bolt mounting guide of the present invention is provided with a cylindrical body having an inner diameter into which a bolt can be inserted and an outer diameter into which a pair of holes of the arm member can be inserted. For this reason, by inserting the cylinder into the pair of holes of the armpiece, the bolt can be inserted into the cylinder and the bolt can be inserted into the pair of holes of the armpiece.

Further, since a substantially conical cap is inserted inside one end of the tubular body, it is easy to insert the tubular body into the pair of holes of the arm member. This cap is pushed out when the bolt is inserted into the cylindrical body and is separated from the cylindrical body.

Further, the bolt mounting guide of the present invention is provided with a flange portion that comes into contact with the peripheral portion of the hole when the tubular body is inserted, and a locking protrusion that is separated from the flange portion by a thickness corresponding to the thickness of the plate material forming the armor. ing. Since the locking projection has a slope that rises as it approaches the flange, the locking projection passes through the hole when inserting the cylinder, but conversely, in the direction in which the cylinder is pulled out, the cylinder does not move. Lock the body so that it does not fall out. The peripheral portion of the hole is sandwiched by the locking projection and the flange portion to position the cylindrical body.

[Embodiment] FIG. 1 is a side view showing an embodiment of the present invention. Referring to FIG. 1, the bolt mounting guide 10 is configured by inserting a cap 12 inside one end of a tubular body 11. The inner diameter of the cylinder has a size into which a bolt can be inserted, and the outer diameter of the cylinder has an outer diameter into which a pair of holes of the arm bar can be inserted.

A flange portion 13 is formed on the other end of the cylindrical body 11. A locking projection 14 is formed on the outer peripheral surface of the tubular body 11 separated from the flange portion 13 by a distance corresponding to the thickness of the plate material constituting the arm. The locking projection 14 has a slope that rises toward the flange portion. Therefore, although the cylinder body 11 can be inserted in the direction in which it is inserted into the hole of the armband,
The locking projection 14 locks the tubular body 11 in the pulling-out direction.

FIG. 2 shows the bolt mounting guide 10 shown in FIG.
It is sectional drawing which shows the state mounted | worn with. Referring to FIG. 2, the cylindrical body 11 has such a length that the tip thereof reaches the hole 2. However, the length is set so as not to protrude from the hole 2.

The periphery of the hole 3 is sandwiched by the locking protrusion 14 and the flange portion 13. Such a locking protrusion 14 and the flange portion 1
The cylindrical body 11 is positioned by 3.

A bolt is inserted into the inside of such a cylinder 11 from the hole 3 side. By inserting the bolt, the cap 12 is pushed out and removed from the cylindrical body 11.

FIG. 3 is a cross-sectional view showing a state in which a bolt is passed through the bolt mounting guide. As shown in FIG. 3, a cylinder 11 is inserted between the hole 2 and the hole 3 of the armband 1. By inserting a bolt 4 into the cylinder 11, the bolt 4 is attached to the armband 1.
The armband 1 can be attached to a telephone pole or the like through.

The bolt mounting guide of the present invention may be inserted into the arm at a work site where the arm is mounted on a utility pole or the like, but it is preferable to mount it on the arm before carrying it in the work site in advance if possible. The bolt mounting guide shown in FIG. 1 can be held by a holder as shown in FIG. Referring to FIG. 4, the insertion portion 21 of the holder 20 is inserted into the tubular body 11 to hold the bolt mounting guide. The flange 21 of the holder 20 contacts the flange 23 of the bolt mounting guide so that the insertion portion 21 does not contact the cap 12.

FIG. 5 is a perspective view showing a state in which the bolt attachment guide is attached to the hole of the arm while holding it by the holder. In FIG. 5, the mobile tool arm 30 holds the holder 20, and the bolt mounting guide 10 is inserted into the hole 3 of the arm member 1. As a matter of course, the holder 20 may be held by hand and attached to the arm.

In this invention, the cap and the tubular body may be molded separately, and then combined, or the integrally molded one may be cut and combined. FIG. 6 is a side view showing the shape of the molded product when the integrally molded products are cut and combined. A molded product 40 as shown in FIG. 6 is molded by a molding method such as blow molding, and A shown in FIG.
If cut at the portions B and B, the portion on the left side of A becomes a cap and the portion on the right side of B becomes a cylinder.

[Effect of the Invention] As described above, by inserting the bolt mounting guide of the present invention into the hole of the armpiece in advance, the bolt can be easily passed through the armband and the armband can be attached to the utility pole or the like. Is possible.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of the present invention. FIG. 2 is a sectional view showing a state in which the bolt mounting guide of the embodiment shown in FIG. 1 is mounted in the hole of the arm member. FIG. 3 is a cross-sectional view showing a state in which a bolt is passed through the bolt mounting guide shown in FIG. FIG. 4 is a side view showing a state in which the bolt mounting guide of the embodiment shown in FIG. 1 is held by a holder. FIG. 5 is a perspective view showing a state in which the bolt mounting guide is attached to the hole of the arm member while being held by the holding tool. FIG. 6 is a side view showing a molded product for producing the bolt mounting guide of the embodiment of FIG. FIG. 7 is a perspective view showing a conventional method of passing a bolt through a hole of a wrist metal. In the figure, 1 is a armband, 2 and 3 are holes of a armband, 4 is a bolt, 10 is a bolt mounting guide, 11 is a cylinder, 12 is a cap, 13 is a flange portion, 14 is a locking protrusion, and 20 is a holding member. A tool, 30 is a starter arm, and 40 is a molded product.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kenichi Sonoda 4498-1 Irino, Aya-cho, Higashimori-gun, Miyazaki Prefecture (72) Inventor Yuji Ikeda 3-163 Ohashi, Miyazaki, Miyazaki (72) Inventor Terumasa Masudome 122-1 Yanozaki, Miyazaki City, Miyazaki Prefecture 205-1 Park Building 205 (72) Creator Mitsuo Komori 1-46, Funatsuka, Miyazaki City, Miyazaki Prefecture (56) References

Claims (1)

[Scope of utility model registration request] 1. A pair of arms formed on opposite surfaces of the armrest, respectively.
A guide for passing a bolt through a pair of holes, the cylinder having an inner diameter into which the bolt can be inserted and an outer diameter into which the pair of holes of the arm member can be inserted, and an inside of one end of the cylinder. A substantially conical cap to be inserted, a flange portion provided at the other end of the tubular body, which comes into contact with a peripheral portion of the hole when the tubular body is inserted into the hole of the armpiece, and the flange portion to the arm. A bolt mounting guide for a metal fitting, comprising: a locking projection provided on an outer peripheral surface of the cylindrical body separated by a thickness corresponding to a plate material forming the gold, and having an inclination that rises toward the flange portion.