JPH08261367A - Bolt pulloff preventing device for turn buckle for suspending piping suspension band - Google Patents

Abstract

PURPOSE: To perform an efficient piping work by a method wherein bolt by which a piping suspension band is suspended in a cantilever state from a turn buckle is temporarily held. CONSTITUTION: A foamed resin cushion material 15 is located between the suspension pieces 13 of the suspension part 12 of a turn buckle 10 for suspending a piping suspension hand 20. The diameter of the bolt insertion hole 14 of the suspension piece 13 is decreased and the bolt shaft of a bolt 31 is held in a rebound manner and arranged at the turn buckle 10. A bolt 31 by which the piping suspension band 20 is brought into a cantilever state and on which a nut 32 is not yet mounted is prevented from dropping from the turn buckle 10. This constitution, after the piping suspension band 20 is preset to the turn buckle 10, holds a pipe C, fastens a bolt nut by one hand, and performs a piping work by a single worker.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bolt retaining device for a turnbuckle for suspending a pipe suspension band used for piping in a building.

[0002]

2. Description of the Related Art As is well known, the piping of this type of building generally uses a turnbuckle and a piping suspension band, and the turnbuckle is screwed to and supported by a suspension bolt hanging from the upper slab.
A pipe suspension band is clamped and hung on the suspension part of the turnbuckle, and the pipe suspension band is used to suspend and support a pipe pipe below the ceiling below the upper slab.

At this time, the turnbuckle is provided with an upper threaded portion for screwing the suspension bolt and a suspension portion having a bolt insertion hole for tightening and suspending a piping suspension band, and the suspension portion has a bolt insertion hole transparently. It shall be formed by a single hanging piece installed or by a pair of hanging pieces facing each other, and the pipe hanging band is generally a pair of semi-circular shapes that are openably and closably connected via a hinge (link). It is provided with a pipe receiving portion and a hanging piece through which a pair of bolt insertion holes at the tip of each pipe receiving portion are transparently provided. On one side of the hanging part, the outer side of the hanging part of the buckle is overlapped with the above-mentioned pair of hanging pieces of the piping hanging band, and then the bolts are inserted through the bolt insertion holes of the hanging part and the pair of hanging pieces. It is supposed to be done by tightening the nut That.

[0004]

[Problems to be Solved by the Invention] However, in this case,
In order to facilitate the work of tightening the piping suspension band at a high place above, the relationship between the bolt insertion hole of the turnbuckle and the bolt is such that a bolt of 8 mm diameter is used for a bolt insertion hole of 10.5 mm diameter. Since the bolt insertion hole is a round hole for bolt loose fitting so that the bolt is loosely fitted, the bolt is inserted into the bolt insertion hole of the turnbuckle, and the bolt is inserted with the nut not attached. Even if you try to hold it temporarily, the bolt will come off the turnbuckle, causing it to fall.

That is, when the piping work is performed by individually tightening and suspending the piping suspension bolts on the turnbuckle which is screwed to and supported by the suspension bolts, it is not necessary to intentionally hold the bolts. In the work, a worker manually holds a pipe of a predetermined length, and another worker closes the pipe suspension band while holding the pipe, and then suspends and tightens the turnbuckles. And generally requires multiple workers.

Therefore, in order to improve the efficiency of the piping work, for example, one hanging piece is previously supported by a plurality of turn buckles that are screwed to and supported by hanging bolts, so that each piping hanging band in an open state is cantilevered. Temporarily hold the bolts, or temporarily tighten the nuts to prevent the nuts from being lost, and then close each piping suspension band in a holding manner with the piping pipe held by one hand, and then hang the tightening suspension in order. By doing so, a simple and reliable piping work can be performed by a single worker. However, in the above piping work, the bolts cannot be temporarily held. Therefore, immediately after inserting the bolts or temporarily tightening them. When removing the nut, the bolt and the piping suspension band fall,
There is no choice but to set the bolt and the piping suspension band again, which is a complicated task.

The present invention has been made in view of the above circumstances, and the first problem to be solved by the present invention is to make nuts suitable for performing simple and reliable piping work by a single operator. The present invention is to provide a bolt retaining device for a turnbuckle for suspending a piping suspension band that can temporarily hold and hold an unattached bolt. Secondly, in addition to this, further tightening strength of a piping suspension band (EN) Provided is a bolt retaining device for a turnbuckle for suspending a piping suspension band, which improves the efficiency and eliminates the possibility of loosening as much as possible.

[0008]

According to the first aspect of the present invention, the bolt shaft is elastically held, hooked, or frictionally held on the suspension of the turnbuckle. By so doing, a bolt retaining means for retaining a bolt not having a nut attached thereto is provided, and in accordance with the second problem, the bolt retaining means is elastic in the bolt nut tightening direction. That is, according to the first aspect of the present invention, in accordance with the first object, the first aspect of the present invention is provided in a hanging portion for fastening a pipe hanging band in a turnbuckle and a bolt insertion hole of the hanging portion. A bolt retaining device for a turnbuckle for suspending a pipe suspension band, comprising: a bolt retaining device for elastically retaining a bolt shaft of a nut-unattached bolt that has been inserted, claim 2, and the bolt shaft of claim 1. Retaining the bolt that holds the A bolt retaining device for a turnbuckle for suspending a pipe suspension band, characterized in that a bolt retaining means for retaining or frictionally retaining a bolt shaft is used instead of the step. A bolt retaining device for a turnbuckle for suspending a pipe hanging band, characterized in that the bolt retaining means is formed by an interposing member interposed between a pair of spaced-apart suspension pieces forming a suspended portion of the turnbuckle, A pipe suspending band for hanging according to claim 4, characterized in that the bolt retaining means according to claim 1 or 2 is provided by an attachment member attached to one or both outer surfaces of a hanging portion of a turnbuckle. A turnbuckle bolt retaining device, and according to the second problem, according to claim 5, the interposition member of claim 3 or the attachment member of claim 4 is additionally elasticized in the bolt nut tightening direction. Having And a bolt retaining device for a turnbuckle for suspending a pipe suspension band, characterized by being an intermediate member or an additional member made of synthetic resin or metal, and these are respectively means for solving the above problems as the gist of the invention. It is a thing.

The bolt retaining means for elastically holding the bolt shaft according to claim 1 of the present invention has, for example, a bolt through hole having a diameter smaller than that of the bolt insertion hole, and elastically holds the bolt shaft through the bolt through hole. 3. A bolt shaft, which is closed by a notch such as a radial pattern and elastically holds a bolt shaft that is opened so as to press the center of the bolt shaft. The bolt retaining means may be, for example, a mode in which the bolt shaft is elastically held by hooking and locking the thread groove of the bolt shaft on a hooking portion that projects all or part of the inside of the diameter of the bolt insertion hole. Includes a mode in which the bolt shaft can be pulled out in the horizontal direction by reducing the diameter, and the bolt shaft is frictionally held in a horizontal or inclined state by the friction force of rubber, foam synthetic resin, etc., which has a width and thickness and has frictional properties. The means is A member other than the buckle is elastically inserted between the hanging pieces of the turnbuckle or is provided with a fixing means such as an adhesive, or the inner side surface of one hanging piece is provided with a fixing means such as an adhesive. It is installed by applying it, and it is installed by applying a fixing means such as adhesive to the outer surface of one or both hanging pieces, and furthermore, it is fitted and fixed to one of the hanging pieces. The attachment is generally performed, but in particular, the hook-holding device according to the second aspect can be integrated with the hanging portion when manufacturing the turnbuckle, in addition to the above.

When the bolt retaining means is provided with or attached to a member different from the turnbuckle, the member is made of rubber, soft or semi-hard synthetic resin or foam synthetic resin for elastic retention. The member is in the form of a hard synthetic resin, a metal piece member for holding the hook, a rubber having a thickness in the width direction for holding the friction, a soft synthetic resin, a foamed synthetic resin, or the like having a frictional piece member. It is possible,
Further, when rubber, synthetic resin or metal having elasticity in the bolt nut tightening direction according to claim 5 is used, in addition to the use of elasticity of materials such as rubber and synthetic resin, especially in metal Can be a spring washer or the like which uses elasticity imparted by processing like the spring washer.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail with reference to the drawings showing the following embodiments. In FIG. 1 to FIG. The pipe suspensions 10, 20 and 30 which are supported by suspension are the turnbuckles, the pipe suspension bands and the bolts and nuts constituting the pipe suspension A, respectively.

In the present embodiment, the turnbuckle 10 is provided with a rotatable nut 11 at the upper end that is rotatably installed, and a hanging part 12 having a bolt insertion hole 14 for fastening and hanging a piping hanging band 20. Reference numeral 12 designates this as formed by a pair of hanging pieces 13 in a separating direction through which the bolt insertion hole 14 is provided, and the hanging portion 12 is provided with a bolt retaining means 15 which will be described later. The suspension band 20 includes a pair of semicircular pipe receiving portions 21 that are openably and closably connected to each other via a hinge 23, and a suspending piece 24 in which a pair of bolt insertion holes 26 at the tip of each pipe receiving portion are transparently provided. And
The bolt nut 30 is composed of a hexagonal bolt 31 and a hexagonal nut 32 adapted to the bolt shaft.

The bolt retaining means 15 provided in the hanging portion 12 of the turnbuckle 10 elastically holds the bolt shaft of the nut 32 and the unattached bolt 31 which is inserted into the bolt insertion hole 14 of the hanging portion 12 so that the bolt is retained. In the present embodiment, the bolt retaining means 15 serves as a retaining device for the suspension 31 of the hanging portion 1 of the turnbuckle 10.
2 is formed by an interposing member that is interposed between a pair of hanging pieces 13 that are spaced apart and face each other.
The intermediate member 5 is made of rubber, synthetic resin or metal having elasticity in the tightening direction of the bolt and nut 30, for example, an intermediate member made of expanded polyethylene of expanded synthetic resin.

That is, the bolt retaining means 15 of the present embodiment is slightly smaller than the hanging piece 13 of the hanging portion 12 and has, for example, a diameter of 2.5 cm and a thickness of 5 mm, and a bolt penetrating diameter of 7 mm in the center. As a thick disk-shaped cushioning piece member through which the hole 16 is provided, an intermediate member made of expanded polyethylene is used.
This is inserted so as to be elastically press-fitted between the pair of spaced-apart suspension pieces 13, is interposed between these suspended pieces 13, and is installed in the suspension part 12, and the bolt shaft of the bolt 31 is While being elastically held, the tightening strength of the bolt nut 30 is improved by the elasticity of the bolt nut 30 in the tightening direction.

The elastic holding of the bolt shaft of the bolt 31 is as follows.
The diameter of the bolt insertion hole 14 of the hanging portion 12, that is, the hanging piece 13 is reduced, and the bolt through hole 16 is set so that the bolt 31 can be pushed and penetrated. In this example, the bolt insertion hole 14 has a diameter of 10.5 mm, for example, and is a loose fitting hole into which a bolt 31 having a diameter of 8 mm is loosely fitted.
By making the bolt through hole 16 have a diameter of 7 mm, the diameter of the bolt insertion hole 14 can be reduced, the bolt 31 can be pushed in and penetrated, and its elastic holding can be maintained.

In addition, the tightening strength of the bolt nut 30 can be improved by using the intervening member of this embodiment as a piece member made of foamed polyethylene alone, so that the elasticity of the material makes the bolt nut 30 elastic in the tightening direction. This is done by gaining inspiration.

Reference numeral 22 in the drawing denotes the pipe receiving portion 2 of the pipe suspension band 20.
1 is a reinforcing rib that bulges in the longitudinal direction thereof, and 25 is a swelling stop of the bolt 31 by bulging in a protruding shape on one of the hanging pieces 24 of the piping hanging band 20 on the bolt 31 insertion side to provide one or a pair.

In order to suspend and support the piping pipe C by the piping suspending tool A of this example, for example, the hole-in anchors 2 are embedded in the upper slab B at predetermined intervals, and the hanging bolts 1 are screwed down to the hanging bolts. Installation step, turnbuckle installation step of screwing and supporting each turnbuckle 10 to each suspension bolt 1, each turnbuckle 10 temporarily holds a bolt 31 that cantilevers the pipe suspension band 20, and if necessary, Bolt 3
1, a pipe suspension band cantilever bolt installation process for temporarily tightening the nut 32 to prevent loss, a pipe pipe C of a predetermined length is lifted to a fixed position, and each pipe suspension band 20 is wrapped, and the turnbuckle 10 is Pipe hanging band 20 to bolt nut 30
It can be performed by the pipe installation process that is
According to the method of suspending and supporting the pipe C, the pipe suspending band 20 is attached to the bolt inserting hole 2 of the suspending piece 24 on one side thereof.
6, the bolt 31 is supported by the bolt 31, and the bolt 31 is pushed through the bolt through hole 16 of the bolt retaining means 15 of the hanging portion 12 of the turnbuckle 10 so that the bolt 31 penetrates the bolt 31. The pipe hanging band 20 is elastically held by the pipe 15, and the pipe receiving portion 21 is vertically arranged in two rows to open the pipe hanging band 20 and can surely support the load of the pipe hanging band 20. When the nut 32 is temporarily fastened, even if the nut 32 is not attached, including the case where the nut 32 is removed, the pipe hanging hand 20 is prevented from falling so as to prevent the pipe hanging hand 20 from falling. Even in the installation process, the piping pipe C can be held, for example, with the left hand, and the holding work and the fastening work of the piping suspension band 20 can be performed with the right hand. In, the bolt retaining means 1
With the provision of 5, it is possible for a single worker to perform the piping work at a high place easily, reliably and efficiently.

FIGS. 6 to 9 show other examples. FIG. 6 shows the bolt retaining means 15 for retaining the bolt shaft elastically.
Is an example in which a piece member made of expanded polyethylene alone is attached to both outer surfaces of the hanging portion 12 of the turnbuckle 10 by, for example, an adhesive fixing means. The hanging portion 12 is configured as a single hanging portion by a pair of hanging pieces 13 facing each other.

FIG. 7 also shows a bolt retaining means 15 for holding the bolt shaft elastically, which closes the bolt insertion hole 14 while
In the example in which the bolt shaft that is expanded by the radial cutout 17 and presses the center is used as an interposing member that is a piece member of only rubber or soft synthetic resin so as to hold it by the elasticity of the expansion. is there.

FIG. 8 shows an example in which a bolt retaining means 15 for retaining the bolt shaft is used in place of the bolt retaining means for elastically retaining the bolt shaft. In this embodiment, the bolt retaining means 15 is a spring. It has a washer-like resilience, and the edge portion of the central bolt through hole 16 that protrudes within the diameter of the bolt insertion hole 14 so as to reduce the diameter of the bolt insertion hole 14 is hooked with the hook portion 1.
As a spring metal piece of a piece member of No. 8, the bolt shaft is hooked and held as an interposition member interposed between a pair of spaced-apart hanging pieces 13 forming a hanging portion 12 of the turnbuckle 10 as in the above example. It is as a thing.

FIG. 9 shows an example in which a bolt retaining means 15 for frictionally retaining the bolt shaft is used instead of the bolt retaining means for elastically retaining the bolt shaft. In this embodiment, the bolt retaining means 15 is The diameter of the bolt through hole 16 in the interposing member that is made into a piece member having a frictional width such as the foamed polyethylene or rubber is made to be the same as or slightly larger than the diameter of the bolt shaft of the bolt 31. The bolt shaft is made smaller in diameter than the bolt insertion hole 14 so that the bolt shaft can be pulled out in the horizontal direction, and the bolt shaft is held in a horizontal or inclined state by the frictional force of the material.

In the same manner as in the above-mentioned example, all of these support the bolt 31 without a nut or one hanging piece to hold the bolt 31 that cantilevers the pipe hanging band 20 and prevent the falling. Each of them has elasticity in the tightening direction of the bolt nut 30, and contributes to improvement of the tightening strength of the bolt nut 30.

Although the illustrated example is as described above, the hanging portion of the turnbuckle is configured as a single tongue shape, and the bolt retaining means is an attachment member attached to the outer surface thereof. Attaching to the outer surface of both suspension parts, the bolt retaining means is configured as a composite member of metal and rubber or synthetic resin, and when elastic holding or friction holding is performed, for example, by rubber or synthetic resin, When hooking and holding, configure the engaging part with the bolt shaft with metal or synthetic resin, replace the pipe suspension band with a pair of pipe receiving parts with the above hinges, and replace the other parts between the pipe receiving parts. Connected by the opening and closing means or holding a plurality of pipes at the same time, when fixing the bolt retaining means to the suspension part, by fixing means other than adhesion such as screwing, fitting, etc. Including In carrying out the above, the concrete shapes, structures, materials, dimensions of the turnbuckle, hanging parts, bolt retaining means, piping suspending band, bolt nuts, their relations, additions to them, usage modes, piping methods, etc. The present invention can be variously modified without departing from the spirit of the invention described above, and the present invention is not limited to the above-described embodiments.

[0025]

As described above, according to the first aspect of the present invention, there is provided a hanging part for tightening and suspending a pipe hanging band in a turnbuckle,
A bolt retaining means for elastically retaining a bolt shaft of a nut-unattached bolt inserted through the bolt insertion hole of the suspension portion is provided. Claim 2 elastically retains the bolt shaft of claim 1. In place of the bolt retaining means, a bolt retaining means for holding or frictionally holding the bolt shaft is used, and in claim 3, the bolt retaining means according to claim 1 or 2 is used for the hanging portion of the turnbuckle. According to a fourth aspect of the present invention, the bolt retaining means according to the first or second aspect is provided on one side of the hanging portion of the turnbuckle or Since it is characterized by an attached member attached to both outer surfaces, a nut-unattached bolt or a nut-unattached bolt that bears one hanging piece and cantilevers a pipe suspension band is used as a turnbuckle. A bolt retaining device for a turnbuckle for suspending a piping suspension band that can be held and prevented from falling by retaining it, thus enabling simple, reliable and efficient piping work by a single operator. Can be provided.

According to a fifth aspect of the present invention, the intermediate member according to the third aspect or the additional member according to the fourth aspect is additionally made of rubber, synthetic resin or metal having elasticity in the bolt nut tightening direction. In addition to the above, in addition to the above, the pipe suspension band fastening with bolts and nuts The fastening strength of the hanging band is further improved, and the possibility of loosening is eliminated as much as possible. It can be used as a bolt removal device for a turnbuckle for hanging a band.

[Brief description of drawings]

FIG. 1 is a front view of an installed state showing a relationship between a turnbuckle and a piping suspension band.

FIG. 2 is a partially enlarged front view showing the relationship between the turnbuckle and the piping suspension band.

FIG. 3 is a partially enlarged side view showing the relationship between the turnbuckle and the piping suspension band.

FIG. 4 is an exploded perspective view showing a relationship between a turnbuckle and bolt retaining means.

FIG. 5 is a perspective view showing a relationship between a bolt that cantilevers a pipe suspension band and a turnbuckle.

FIG. 6 is a partially enlarged front view showing another example.

FIG. 7 is a perspective view showing another example.

FIG. 8 is an exploded perspective view showing another example.

FIG. 9 is a perspective view showing another example.

[Explanation of symbols]

 A Piping suspender B Slab C Piping pipe 1 Suspension bolt 10 Turnbuckle 12 Suspension part 13 Suspension piece 14 Bolt insertion hole 15 Bolt retaining means 20 Piping suspension band 24 Suspension piece 30 Bolt nut 31 Bolt 32 Nut

Claims (5)

[Claims] 1. A bolt retaining means for elastically retaining a bolt shaft of a nut-unattached bolt inserted in a bolt insertion hole of the suspension, in a suspension for fastening and suspending a pipe suspension band in a turnbuckle. A bolt retaining device for a turnbuckle for suspending a piping suspension band. 2. A hanger for hanging a pipe hanging band, characterized in that instead of the bolt retaining means for elastically retaining the bolt shaft of claim 1, bolt retaining means for retaining or frictionally retaining the bolt shaft is used. Turnbuckle bolt removal device. 3. A pipe suspension characterized in that the bolt retaining means according to claim 1 or 2 is formed by an interposing member interposed between a pair of spaced-apart suspension pieces forming a suspension of a turnbuckle. Bolting device for turnbuckles for hanging bands. 4. A hanger for hanging a pipe hanging band, characterized in that the bolt retaining means according to claim 1 or 2 is formed by an attachment member attached to the outer surface of one or both of the hanging parts of the turnbuckle. Turnbuckle bolt removal device. 5. The intermediate member according to claim 3 or the additional member according to claim 4, which is additionally made of rubber, synthetic resin, or metal having elasticity in the bolt nut tightening direction. A bolt retaining device for a turnbuckle for suspending a pipe suspension band, characterized by being used as a member.