JPH0632722U - Coupling with bolt holding member - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] The semi-coupling member is equipped with a bolt holding member so as to prevent the bolt from falling off to improve workability and productivity. [Structure] The bolt holding member 10 is formed in a circular shape having a size capable of engaging with the inside of the other end side flange 5 of the half coupling member 2a. Further, a circular through hole 11 through which the bolt 7 can be inserted is formed inside the bolt holding member 10, and a protrusion-shaped slip-out preventing portion 12 that slidably contacts the outer peripheral surface of the bolt 7 is formed around the through hole 11 in the circumferential direction. The slit portions 13 are formed at predetermined intervals. The pull-out prevention portion 12 is formed with a so-called return portion X so that the bolt 7 does not come off even if the bolt 7 is pulled in the direction of the arrow. If a bolt is inserted through 11, it will be held in a stable state.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a coupling provided with a bolt holding member, and more specifically, a bolt attached to one of the other end side flanges of the semi-coupling member does not drop from the semi-coupling member and stably holds it. The present invention relates to a coupling provided with a bolt holding member capable of

[0002]

[Prior art]

 Conventionally, a coupling 1 as shown in FIG. 3 has been used as a joint member for connecting divided members or pipe materials. This coupling 1 connects one end side flanges 3 of a pair of half-coupling members 2a, 2b formed in a semi-circular shape so as to be openable and closable via a ring-shaped connecting member 4 and at the other end side flange. The bolt 7 was inserted through the bolt 5, and the nut 8 was used to tighten and fix the bolt.

[0003]

[Problems to be solved by the device]

 However, when mounting the coupling 1 as described above, the bolt 7 is attached to one half coupling member 2a, and the other half coupling member 2b is bolted to the bolt 7 while the bolt 7 is held by hand. Then, the nut 8 was attached to the bolt 7 and tightened and fixed.

By the way, in recent years, in a mass production factory, an electric nut tightening machine called an impact wrench and a nut runner is often used for tightening the bolt 7, and such an electric nut tightening machine is used. When using a machine, holding the bolts 7 by hand as described above requires a lot of work and cannot improve workability and productivity. Therefore, the bolts 7 are held on the compressor 1 in advance. It was requested to keep it.

The present invention has been devised by focusing on such a conventional problem, and by holding the bolts in the semi-coupling member in advance so as not to drop, the bolts are tightened one by one when tightening them. It is an object of the present invention to provide a coupling equipped with a bolt holding member that can improve workability and productivity without having to press down with.

[0006]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the gist of the present invention is that a bolt to be inserted into and attached to one end side flange of a half coupling member is held on the other end side flange via a bolt holding member. Is. This bolt holding member is a plate-shaped member that can be engaged with the inside of the flange on the other end side, and is provided with a plurality of slits through which the bolts are inserted in the center thereof, and the plurality of slits are provided with bolt removal preventing portions. In the turbocharger assembly, it is possible to easily hold the bolts when they are mounted in the coupling used to fasten the turbine housing and compressor housing to the bearing housing, and also to prevent them from falling off. It is a thing.

[0007]

[Function of the device]

 The present invention is configured as described above, and when the coupling is delivered, the semi-coupling member is previously held by the bolt holding member so that the bolt does not fall off. Since it is not necessary to hold it down by hand, it can be easily assembled even when using an electric nut tightening machine and impact wrench.

[0008]

[Example of device]

 An embodiment of the present invention will be described below with reference to the accompanying drawings. The same components as those in the conventional example are designated by the same reference numerals and the description thereof will be omitted. FIG. 1 is a plan view of a bolt holding member 10 according to the present invention which is attached to a coupling 1, and FIG. 2 is a side view of FIG. 1, wherein the bolt holding member 10 is made of a thin metal plate, a resin plate, paper, or the like. The material used is punched by a press or the like.

The bolt holding member 10 is formed in a circular shape having a size such that it can be engaged with the inside of the other end side flange 5 of the half coupling member 2 a holding the bolt holding member 10. In addition, a circular through hole 11 through which the bolt 7 can be inserted is formed inside the bolt holding member 10, and a protrusion-shaped removal preventing portion 12 that slidably contacts the outer peripheral surface of the bolt 7 is formed around the through hole 11. Are formed at predetermined intervals with the slit portion 13 in between.

As shown in FIG. 2, the slip-out preventing portion 12 is formed with a so-called return portion X so that the bolt 7 does not slip out even if the bolt 7 is pulled in the direction of the arrow. After it is once inserted into the through hole 11 of the member 10, it does not easily fall off, and the bolt 7 is held by the circumferential pull-out prevention part 12, so that it can be swung in the left-right direction. There is no such thing, and it is what is held in a stable state.

The through hole 11 into which the bolt 7 is inserted, the slip-out preventing portion 12 and the slit portion 13 are not limited to the above-described configuration, and can be arbitrarily designed depending on the diameter and length of the bolt 7. Also, the slit portion 13 is not limited to the slit having the width as described above, and a small through hole may be provided at the center of the slip-out prevention portion 12 and a plurality of cuts may be formed in the radial direction around the through hole. good.

The detachment prevention portion 12 as described above is fitted from the tip of the bolt 7 when the bolt 7 is previously inserted into the flange 5 on the other end side of the semi-coupling member 2a when the coupling 1 is delivered. The bolt 7 is attached to the other end side flange 5 of the semi-coupling member 2a and is to be delivered to the delivery destination. Then, in the assembly factory, the bolt 7 is inserted into a predetermined position of the other half coupling member 2b without being pressed by one hand, and is fixed by tightening through a nut 8.

As described above, according to the embodiment of the present invention, when the coupling 1 is delivered, the half coupling member 2a is held in advance by the bolt holding member 10 so that the bolt 7 does not fall off. When the coupling 1 is mounted, it is not necessary to press the bolts 7 by hand one by one, and the assembly can be easily performed even when an electric nut tightening machine is used.

[0014]

[Effect of device]

 According to this invention, the bolt to be inserted into and attached to the other end side flange of the half coupling member as described above is held on the other end side flange through the bolt holding member. Since there is no need to hold down with, there is an effect that workability and productivity can be improved. Moreover, since the structure and the members are simple, there is an effect that the manufacturing can be performed at low cost.

[Brief description of drawings]

FIG. 1 is a plan view of a bolt holding member according to the present invention mounted on a coupling.

FIG. 2 is a side view of FIG.

FIG. 3 is a front view of a conventional coupling.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Coupling 2a, 2b Half coupling member 3 One end side flange 4 Connecting member 5 Other end side flange 7 Bolt 8 Nut 10 Bolt holding member 11 Through hole 12 Drop prevention part 13 Slit part X Return part

Claims (3)

[Scope of utility model registration request] 1. A pair of half-coupling members, which are formed in a semi-arcuate shape, have one end-side flanges openably and closably connected through a connecting member, and the other end-side flanges can be fastened and fixed through a bolt and a nut. In the coupling configured as described above, the bolt that is inserted into and attached to the other end side flange of the half coupling member is held on the other end side flange via the bolt holding member. Coupling with. 2. The bolt holding member according to claim 1, wherein the bolt holding member is a plate-like member that can be engaged with the inside of the other end side flange, and a plurality of slits through which the bolts are inserted are provided at the center thereof. Coupling with members. 3. A coupling having a bolt holding member according to claim 2, wherein a plurality of slits formed in the bolt holding member are provided with bolt removal preventing portions.