JPH10196632A - Bolt installation structure and piping supporting fitting - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a novel bolt installation structure which prevents escape of a bolt with a simple structure, and facilitate speedy attaching and detaching of a fitting. SOLUTION: In this bolt installation structure, a bolt B having a barrel 4 with a diameter a little smaller than that of a screw part 3 is inserted into a through-hole 2 formed on a plate-like installation part 1. The diameter of the through-hole 2 is reduced compared to that of the screw part 3 by pressing or hammering the hole edge or periphery of the through-hole 2 in the state that the through-hole 2 is located on the barrel 4. The bolt 2 is thus inserted into the through-hole 2 in an escape-preventive manner.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bolt mounting structure and a pipe support.

[0002]

2. Description of the Related Art For example, there are various types of pipe support fittings, and a support fitting for supporting a pipe via a suspension bolt generally connects the bottoms of a pair of holding halves to each other, thereby forming a polymer. A nut is screwed or screwed into a burring hole through a connection bolt on the upper part of each holding half to be arranged, and the holding half is closed and held to hold the pipe. The lower part of the screw fitting to be screwed to the suspension bolt is fastened by the connection bolt.

[0003] Therefore, in the operation of attaching and detaching the support fitting, the nut is removed from the connecting bolt passing through one upper portion of the holding half, or the connecting bolt is turned from the burring hole to remove it from the burring hole. The other part of the body is opened outward and pivoted (opened) for attachment and detachment.

[0004]

However, the insertion hole of the connecting bolt is formed so large that the holding half can be smoothly rotated and opened and the piping position can be slightly shifted. If the front end of the connecting bolt is unscrewed, the bolt may fall out of the insertion hole and fall.

Further, when the bolt comes off, the holding half and the hanging bolt screw fitting are disconnected, and the holding half also comes off.

For this reason, the bolts must be held down by hand so that the bolts do not come off during the attaching and detaching work, and the workability is poor.

[0007] Such a problem is a common problem not only in a pipe support fitting but also in a fitting connected by bolts.

The present invention finds such a problem, prevents the bolt from being loosened by a simple structure, can surely solve the problem, and can easily and quickly mount and remove the metal fittings. It is an object of the present invention to provide a new bolt mounting structure and a pipe support.

[0009]

The gist of the present invention will be described with reference to the accompanying drawings.

A bolt B having a body portion 4 slightly smaller in diameter than the screw portion 3 is inserted into an insertion hole 2 provided in the plate-shaped mounting portion 1, and the insertion hole 2 is positioned in the body portion 4. Then, the hole edge or the peripheral portion of the insertion hole 2 is pressed or struck to reduce the diameter of the insertion hole 2 to a diameter smaller than that of the screw portion 3 so that the bolt B cannot be removed from the insertion hole 2. The present invention relates to a bolt mounting structure characterized by being mounted.

Further, by striking the opposing position of the peripheral portion of the insertion hole 2 to deform the insertion hole 2 to slightly reduce the diameter of the insertion hole 2 so that the bolt B cannot be removed from the insertion hole 2 and cannot be removed. The bolt mounting structure according to claim 1, wherein the bolt mounting structure is mounted.

The screw portion 3 is formed by rolling the screw portion 3 on the rod portion of the bolt B, and the non-thread portion on the base end side is the body size portion 4 having a slightly smaller diameter than the screw portion 3. , One of 2
The present invention relates to the bolt mounting structure described in the paragraph.

Further, the insertion hole 2 is a long window hole such as a substantially elliptical shape or a substantially oval shape, and the diameter of the insertion hole 2 in the minor axis direction is set slightly larger than the screw portion 3 of the bolt B. By pressing or hitting the edge or the peripheral portion of the insertion hole 2 in the short axis direction, the diameter of the insertion hole 2 in the short axis direction is slightly smaller than the screw portion 3 and slightly larger than the body size portion 4. The bolt mounting structure according to any one of claims 1 to 3, wherein the bolt mounting structure has an appropriate hole diameter.

A holding half 5 for holding and supporting the pipe A is also provided.
6 is pivotally connected to the bottom of the holding half 5 so as to be freely opened and closed.
In a pipe support fitting configured to close and hold a bolt B on an upper part of a holding member 6, an upper part of the one clamping half 5 is used as the mounting part 1 according to any one of claims 1 to 4. The present invention relates to a pipe support fitting characterized in that the above described bolt mounting structure is provided so that this bolt B can be screwed and connected to the upper part of the other clamping half 6.

Further, a screw hole for screwing the screw portion 3 of the bolt B or an insertion hole 8 for inserting the screw portion 3 and screwing the nut 7 is provided in the upper portion of the other clamping half 6. According to a fifth aspect of the present invention, there is provided the piping support fitting according to the fifth aspect.

Further, the clamping half 5.
Suspension bolt screwing part 10 screwed to suspension bolt 9 at the upper part of 6
The pipe support according to any one of claims 5 and 6, further comprising:

A clamping half 5 for holding and supporting the pipe A 5.
6 is pivotally connected to the bottom of the holding half 5 so as to be freely opened and closed.
In the pipe support fitting configured to fix and hold the bolt B on the upper part of the hanging member 6, the hanging part of the hanging bolt screw part 10 screwed to the hanging bolt 9 on the upper part of the one holding half 5. 10A is overlapped, and this hanging part 10A is
According to another aspect of the present invention, there is provided a pipe support fitting provided with the bolt mounting structure according to any one of claims 1 to 4.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the present invention (how to implement the invention) will be briefly described with reference to the drawings, showing the operational effects thereof.

A bolt B having a body portion 4 slightly smaller in diameter than the screw portion 3 is inserted into an insertion hole 2 provided in the plate-like mounting portion 1, and the insertion hole 2 is positioned at the body portion 4. Then, by pressing or hitting the edge or peripheral portion of the insertion hole 2, the diameter of the insertion hole 2 is reduced to a diameter slightly smaller than the screw portion 3 and slightly larger than the body size portion 4. Then, the bolt B is detached from the insertion hole 2 and attached undetachably.

Therefore, an insertion hole 2 having a predetermined size is formed in the mounting portion 1 in advance, and after passing the bolt B, the bolt B cannot be detached simply by pressing or hitting.

As a result, even if the screwed connection or the screwed closed state is released by the screw portion 3 of the bolt B, the bolt B is attached without dropping out of the insertion hole 2 of the attachment portion 1. It is not necessary to press the bolt B by hand, so that attachment and detachment work by screwing using the bolt B can be performed extremely quickly.

[0022]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Specific embodiments of the present invention will be described with reference to the drawings.

An insertion hole 2 is formed in the metal plate-shaped mounting portion 1 so that the screw portion 3 of the headed bolt B can be inserted.

On the other hand, the mounting bolt B to be used is formed by forming a screw portion 3 on a rod portion by rolling, and a thin bolt having a base portion having a threadless portion slightly smaller in diameter than the screw portion 3. I do.

In other words, the bolt B has a body portion 4 (in this embodiment, a simple screwless portion) at the base end.

The bolt B with the head is inserted into the insertion hole 2, and the body 4 on the base end side is positioned in the insertion hole 2, and the periphery of the insertion hole 2 is hit. The hole diameter of the insertion hole 2 is reduced by deformation.

In other words, the diameter of the insertion hole 2 is slightly smaller than the diameter of the screw portion 3 due to the reduction, and the bolt B is detachably attached to the insertion hole 2.

Further, in this embodiment, a long window hole is provided so that the bolt B can be slightly moved in a predetermined direction, and the direction of the bolt B can be slightly changed. After forming the insertion hole 2 having a large shape, a linear flaw 11 is formed on the surface by a blade object having a linear blade edge at two opposing portions in the peripheral portion in the short axis direction of the insertion hole 2. The insertion hole 2 is deformed and deformed by pressing or striking it to such an extent that the hole diameter in the short axis direction of the insertion hole 2 is reduced to such an extent that it cannot be removed as described above.

Therefore, in this embodiment, it is sufficient to simply insert the bolt B, and the bolt B is rotatable and somewhat movable in accordance with the application. It can be mounted in a state, and this impact can be performed with good stability and speedy. It is easy to manufacture, does not deteriorate mass productivity, and does not increase the cost.

In this embodiment, since the thin bolt having the body portion 4 is formed by the conventional rolling, the existing bolt can be used as it is, which is excellent in practicality. Of course, it is also possible to dare to form the narrow body portion 4 at the base end of the bolt B.

Next, an embodiment of a pipe support fitting employing the bolt mounting structure according to the present embodiment will be further described.

In the present embodiment, the present invention is applied to a support fitting having the following configuration.

The lower portions of the holding halves 5 and 6 each having a substantially semicircular holding portion at the lower portion and having an upper portion for polymerization at the upper portion are pivoted so as to be rotatable outward. Wear and open and close,
The pipe A is held between the holding portions of the holding halves 5 and 6, and a bolt B is inserted and stopped between the upper pieces of the upper part to close and hold the pipe A. This is for connecting the suspension bolt screwing portion 10 (screw fitting) to be screwed.

That is, the hanging bolt screwing portion 10 is screwed to the hanging bolt 9, the pipe A is held by the lower holding halves 5, 6, and the pipe A is held by the hanging bolt 9 through the main fitting. It is supported by hanging.

In the embodiment shown in FIG.
The bolt mounting structure described above is adopted as the mounting part 1 with one upper part of the bolt 6.

More specifically, for example, as shown in FIG. 4, the upper piece of the upper half of the left clamping half 5 is used as the mounting portion 1 and a headed bolt B is attached to the insertion hole 2 in a state where it cannot be removed. Hanging part B, hanging part 10A of bolted part 10 (screw fitting)
Through the insertion hole 2 ', and through the insertion hole 8 provided in the upper half of the other holding half 6, and screwed into the nut 7 provided in the insertion hole 8, to close and hold the holding half 5, 6. At the same time, the suspension bolt screwing portion 10 is connected.

Therefore, even when the screw portion 3 of the bolt B is removed from the nut 7 during attachment or detachment, even if the bolt B is pulled out of the other insertion holes 8, 2 ', the bolt B remains on the upper piece of the upper portion of the clamping half 5. It does not come off from the insertion hole 2 provided.

As shown in FIGS. 5 and 6, in the second embodiment in which the hanging portion 10A of the suspension bolt screwing portion 10 is the mounting portion 1 and the bolt mounting structure is applied, the upper portion of the clamping half 5 is used. The bolt B is passed through the through hole 2 of the hanging part 10A, and the bolt B is inserted through the through hole 2 'of the hanging part 10A. Then, the pressing or hitting process is performed around the through hole 2' of the hanging part 10A. B is attached to the suspension bolt screwing portion 10 in a state where it cannot be removed.

With the construction as shown in FIGS. 5 and 6, in this second embodiment, the bolt B does not come off and the suspension bolt is screwed to the holding halves 5, 6. The part 10 can be prevented from falling apart, and it becomes a more excellent pipe support fitting.

[0040]

Since the present invention is constructed as described above, it is possible to prevent the bolt from coming out of the insertion hole by simply pressing or hitting the periphery of the insertion hole after the bolt is inserted, and a simple structure. As a result, an epoch-making bolt mounting structure and a pipe support fitting excellent in workability without inferior in mass productivity can be obtained.

According to the second aspect of the present invention, the impact processing can be performed easily and speedily. In the third aspect of the present invention, an existing roll-formed bolt can be used, and the practicality is further improved. Bolt mounting structure and piping support fittings.

According to the fourth aspect of the present invention, the bolt can be freely moved in a predetermined direction, and such a long window hole is often used particularly in a pipe support fitting.
Excellent in practicality.

Further, in the inventions according to the fifth, sixth, and seventh aspects, even if the bolts are disengaged in the mounting and dismounting operations, the bolts do not come off, so that the workability and safety are excellent. It becomes a revolutionary pipe support fitting.

In the invention according to the eighth aspect, the bolt inserted into one side of the holding half is attached so as not to come off from the hanging portion of the hanging bolt screwing portion that overlaps with the half. The bolts do not come off even when the clothes are removed, and the clamping half and the suspension bolts are not displaced, resulting in an epoch-making bolt mounting structure and piping support with superior workability and safety. .

Further, since any of the inventions can be realized by simply utilizing the existing configuration, it is suitable for mass production, is not expensive, and has a very practical utility with a bolt mounting structure and a pipe support fitting. Become.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of a first embodiment before impact processing.

FIG. 2 is an explanatory view after impact processing of the present embodiment.

FIG. 3 is an explanatory perspective view of a mounting completed state of the embodiment.

FIG. 4 is an explanatory front sectional view of a pipe support fitting of the present embodiment.

FIG. 5 is an explanatory view of a hanging bolt screwing portion of the pipe support fitting of the second embodiment.

FIG. 6 is an explanatory front sectional view of a pipe support fitting of a second embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Attachment part 2 Insertion hole 3 Screw part 4 Trunk part 5.6 Holding half 7 Nut 8 Insertion hole 9 Hanging bolt 10 Hanging bolt screwing part 10A Hanging part A Pipe B Bolt

Claims (8)

[Claims] 1. A bolt having a body part slightly smaller in diameter than a screw part is inserted into an insertion hole provided in a plate-shaped mounting part, and the insertion hole is positioned at the body part, and then inserted. A bolt mounting structure wherein a hole diameter of an insertion hole is reduced to a diameter smaller than that of the screw portion by pressing or hitting a hole edge portion or a peripheral portion of the hole, and a bolt is removed from the insertion hole so as to be permanently attached. . 2. The insertion hole is distorted and deformed by banging the opposing position of the peripheral portion of the insertion hole to slightly reduce the diameter of the insertion hole, and the bolt is detachably attached from the insertion hole. The bolt mounting structure according to claim 1, wherein 3. The screw-shaped part is rolled on the rod part of the bolt, and the non-threaded part on the base end side is the body part having a diameter slightly smaller than that of the screw part. 2. The bolt mounting structure according to claim 1. 4. The insertion hole is a long window hole such as a substantially elliptical shape or a substantially oval shape, and the hole diameter in the short axis direction of the insertion hole is set slightly larger than the screw portion of the bolt. The hole diameter in the short axis direction of the insertion hole is slightly smaller than the screw portion and slightly larger than the body size portion by pressing or hitting the edge portion or the peripheral portion in the short axis direction. The bolt mounting structure according to any one of claims 1 to 3. 5. A pipe support fitting wherein a bottom portion of a holding half for holding and supporting a pipe is pivotally connected to be freely opened and closed, and a bolt is fastened to an upper portion of the holding half to close and hold the pipe. The bolt mounting structure according to any one of claims 1 to 4, wherein an upper portion of said one clamping half is used as said mounting portion, and said bolt is screwed and connected to an upper portion of the other clamping half 6. A pipe support fitting characterized in that the pipe support fitting is obtained. 6. A screw hole for screwing a screw portion of the bolt or an insertion hole for screwing a nut through the screw portion is provided in an upper portion of the other clamping half. The described pipe support fitting. 7. The pipe support according to claim 5, wherein a suspension bolt screwing portion for screwing to the suspension bolt is provided at an upper portion of the holding half via the bolt. Metal fittings. 8. A pipe support fitting wherein a bottom portion of a holding half for holding and supporting a pipe is pivotally connected to be openable and closable, and a bolt is fixed to an upper portion of the holding half to close and hold the pipe. 5. The method according to claim 1, wherein a hanging portion of a hanging bolt screwing portion to be screwed to the hanging bolt is superposed on the upper portion of the one holding half, and the hanging portion is used as the mounting portion. A pipe support fitting provided with the bolt mounting structure described in (1).