JPH0331844Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to the end structure of a fastener used for fixing piping, etc.

[Conventional technology and problems]

For example, in order to fix a pipe constituting a conduit to a structure, as shown in FIG. By fitting the stopper 11 made of a U-bolt onto the bracket 2 and fixing both ends of the stopper 11 to the bracket 2, the bracket 2
A structure is adopted in which the pipe 3 is fixed.

Conventionally, the above-mentioned fasteners have been made by bending a single metal wire into a U-shape and using a U-bolt with male threads on both ends for screwing a nut, and a band made by bending a band-shaped metal plate into a U-shape. A band-type U-bolt with separate screw shafts fixed to both ends is used.

By the way, the former U-bolt using metal wire has the advantage that it is easy to manufacture and has excellent strength because the entire length is one piece, but on the other hand, when the pipe is tightened, the wire comes into contact with the pipe. ,
There are fewer contact surfaces, which weakens the fixation of the pipe, and when it comes to dissipating static electricity generated in the pipe, there is a problem of electrical instability due to the small number of contact surfaces.

In addition, the latter band-type U-bolt makes surface contact with the pipe and can solve the problem of the former U-bolt using metal wire, but the screw shafts at both ends are separate from the band. Since it must be fixed by welding or caulking, the processing cost is high, and the difference in the materials of the band and the screw shaft makes the joint part unstable in terms of strength, and the weld part is prone to rust. There is.

This idea was made to solve the problems encountered with band-type U-bolts, and the band and the screw shafts provided at both ends are integrally molded to reduce processing costs and prevent unstable strength. It is an object to provide a stop end structure that can be resolved.

[Means for solving problems]

In order to solve the above-mentioned problems, this invention has been developed by attaching a
The structure is such that a cylindrical part formed by bending this plate in the width direction is connected, and a male thread is provided on the outer peripheral surface of this cylindrical part.

[Effect]

By bending the end of the band-shaped plate that makes up the fastener body in the width direction over the required length, connecting a cylindrical part to the end of the band-shaped plate, and machining a male thread on the outer circumferential surface of this cylindrical part, the band can be made. The screw shaft is integrated with the screw shaft, and the object to be fixed can be firmly fixed by tightening the nut screwed onto the screw shaft.

〔Example〕

Hereinafter, embodiments of this invention will be described based on the accompanying drawings.

The fastener 11 in the drawing shows an example in which it is applied to the U-bolt for fixing a pipe shown in FIG. Cylindrical portions 13 are provided at both ends of the main body 12,
13 are integrally connected, and a male thread 1 is provided on the outer peripheral surface of the cylindrical part.
It is configured by providing 4.

The cylindrical portion 13 is formed by bending the end of a band-shaped plate constituting the fastener main body 12 over a predetermined length in the width direction. Since it is integrally molded with 12, it is possible to improve strength and stability.

This cylindrical portion 13 may have a gap between the abutting edges on both sides, and since the inside thereof is hollow, it can be used as a passage for a ground wire or a heat-retaining current carrying wire.

The stop of this invention has the above-mentioned structure, and as shown in FIG.
By tightening the nut 15 screwed into the pipe 3
Since the stop main body 12 is formed of a band-shaped plate, the pipe 3 can be fixed in surface contact with the bracket 2.

Note that the fastener is not limited to the band-type U-bolt as shown in the figure, but may be constructed of a combination of a band-like plate and a screw shaft, such as a battledore used to connect columns, etc. in an architectural structure. It can be widely applied to many things.

〔effect〕

As described above, according to this invention, a cylindrical part is bent at the end of the fastener main body using a band-shaped plate, and a male thread is provided on the outer periphery of this cylindrical part, so that it becomes connected to the fastener main body and the screw shaft. The cylindrical part is integrated, and the strength of the interconnected part can be stabilized,
No more problems with rust.

Further, since it is only necessary to bend a part of the belt-shaped plate, processing becomes easy and processing costs can be reduced.

Furthermore, since the cylindrical portion is hollow inside, it can be used as a passage for wiring.

[Brief explanation of the drawing]

Fig. 1 is a front view of a fastener equipped with an end structure according to this invention, Fig. 2 is a side view of the same, Fig. 3 is a longitudinal cross-sectional side view taken along the arrow - in Fig. 1, and Fig. 4 is a bottom view. ,
FIG. 5 is an exploded perspective view of the main parts of the same, and FIG. 6 is a longitudinal cross-sectional view showing the state of use of the same. 11 is a stopper, 12 is a stopper body, 13 is a cylindrical part,
14 is a male screw.

Claims (1)

[Scope of utility model registration request] An end structure of a fastener in which a cylindrical part formed by bending the plate in the width direction is connected to the end of a band-shaped plate constituting the main body of the fastener, and a male thread is provided on the outer peripheral surface of the cylindrical part.