JP2011226590A - Bolt holder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a falling prevention implement facilitating mounting/dismounting of a bolt member, and preventing a fall of the bolt member in time of high place work.SOLUTION: This bolt holder includes a block body holding the bolt members 50 each comprising a shaft part 52 and a non-circular head part 51. The bolt holder includes, on one face side of the block body, hole parts 7 each fitted on the head part 51 in a state that turning around the shaft center of the bolt member 50 is restricted. Each hole part 7 has a nearly same shape as a shape of the head part 51, has a depth not less than a thickness of the head part 51, and is disposed with a magnetic force generation member 6 which exerts magnetic force for holding the head part 51 in the hole part 7, near the hole part 7.

Description

  The present invention relates to a bolt holder for preventing a bolt member from dropping in a high place work.

  As a work at a high place such as repair work of a steel tower, for example, there is a work of attaching and removing a bolt provided to the steel tower. If the bolt member is dropped when performing such a work at a high place, the bolt member may be damaged or lost, and there is a risk of damaging a building or structure underneath. In particular, when working on a steel tower, an operator often works by wearing insulating gloves. Thereby, a small member such as a bolt member is difficult to grasp and is likely to be dropped.

  Therefore, a method for preventing the bolt member from dropping when working at a high place has been proposed (Patent Document 1). In Patent Document 1, a tool bag for storage is installed immediately below the work position, and if a member is dropped, the bolt member is dropped in the tool bag.

  Moreover, the fall prevention tool for preventing the fall of a volt | bolt member is proposed (patent document 2). The fall prevention tool of patent document 2 is provided with the holding | maintenance part which hold | maintains the head of a bolt member, and the hanging part which is connected to a holding | maintenance part and suspends a holding | maintenance part. The holding part has an elastic force and is configured by a cylindrical body having one end opened. The inner peripheral surface on the opening end side of the cylindrical body has a flange erected toward the inner diameter side. Then, the head of the bolt member is housed in the cylinder, and the worker is suspended by the operator via the hanging portion, so that the operator holds the bolt member. And a nut is attached to a bolt member in the state where the fall prevention tool was attached, and a fall prevention tool is removed after that. Thereby, a bolt member will always be hold | maintained to an operator via a fall prevention tool, and fall can be prevented.

JP 2009-291923 A JP 2010-25302 A

  However, when a tool bag is used as in Patent Document 1, since the work position changes frequently, there is a problem that it is troublesome to re-install the tool bag each time. In addition, when trying to install a tool bag, the place where it can be installed at a high place is extremely limited, so it may not be installed directly below the work position. Furthermore, the tool bag may be unstable due to the wind, and it is not always possible to collect the falling material. Moreover, when using a fall prevention net | network, the fallen material may jump by a net | network and may jump out outside, and the certainty of collection is not high.

  The thing of patent document 2 hold | maintains the head of a bolt member with a flange, and when an impact is added to a cylinder and the opening part of a cylinder opens to an outer peripheral side with an elastic force, a bolt member will be easy. There was a problem of falling out. Further, the shapes of the head of the bolt member and the cylinder do not match, and the head may turn in the circumferential direction in the cylinder. Furthermore, since the cylinder has a flange, it is difficult to insert the head into the cylinder, and the head inserted into the cylinder is difficult to remove. As a result, there is a problem that it takes work time.

  In view of the above-described problems, the present invention provides a fall prevention tool that can easily attach and detach a bolt member and can prevent the bolt member from dropping during work at a high place.

  The bolt holder of the present invention is a bolt holder having a block body that holds a bolt member composed of a shaft portion and a non-circular head, and the axis of the bolt member is provided on one side of the block body. The hole includes a hole into which the head is fitted in a state in which the rotation of the head is restricted, and the hole is substantially the same as the shape of the head and has a depth equal to or greater than the thickness of the head. As described above, a magnetic force generating member for applying a magnetic force for holding the head in the hole is disposed in the vicinity of the hole.

  According to the bolt holder of the present invention, since the hole portion is provided on one surface side of the block body and the magnetic force generating member is disposed in the vicinity of the hole portion, the head portion of the bolt member can be held by the magnetic force. . Moreover, since the shape of the hole is substantially the same as the non-circular shape of the head, it is possible to prevent the bolt member from rotating in the circumferential direction while holding the bolt member. In addition, since the depth of the hole is equal to or greater than the thickness of the head, it is possible to prevent the head from coming out of the hole even when the shaft is impacted and displaced in the circumferential direction.

  The block body includes a flat base and a block main body attached to the surface of the base, the hole is provided in the block main body, and an embedding hole is provided in the base. The magnetic force generating member is embedded in the burying hole. Thereby, the magnetic force which adsorb | sucks a bolt head can be made to act.

  One block body can be provided with holes of different sizes. Moreover, the hole part of a different shape can also be provided in one block main body. Thereby, the bolt member of various sizes can be held.

  At least the block body can be made of aluminum. Thereby, weight reduction can be achieved.

  The bolt holder of the present invention can hold the head of the bolt member in the hole with a simple configuration, and can effectively prevent the bolt member from falling. In addition, the bolt member can be prevented from rotating in the circumferential direction, and the head can be stably prevented from coming out of the hole. Thereby, this bolt holder is excellent in retainability and is optimal for work at high places.

  When the magnet is embedded in the base, a magnetic force attracted to the bolt head can be applied, so that the bolt member can be stably held and the holding function of the bolt member can be further enhanced. .

  If one block body is provided with holes of different sizes and shapes, bolt members of various sizes can be held, and the versatility is excellent.

  If the block main body is made of aluminum, the weight can be reduced, and it can be held with one hand, so that the workability can be further improved.

It is a perspective view of the bolt holder of the present invention. FIG. 2 is an enlarged perspective view of the bolt holder of FIG. 1. It is sectional drawing of the bolt holder of the said FIG. It is a top view of the bolt holder of the said FIG. It is a perspective view which shows the state which hold | maintained the bolt member to the volt | bolt holder of the said FIG.

  Embodiments of the bolt holder of the present invention will be described below with reference to FIGS.

  This bolt holder is used to prevent the bolt member from falling by holding the bolt member when performing, for example, mounting / removing bolts provided on the tower as high-level work such as repair work of the tower. is there. The bolt member 50 held by the bolt holder of the present invention includes a head 51 (see FIG. 5) having a non-circular shape (in the present embodiment, a regular hexagon) and a shaft portion 52 (see FIG. 5). Is.

  The bolt holder includes a block body as shown in FIG. 1, and includes a base 1 and a block body 2 erected from the base 1.

  As shown in FIG. 2, the base 1 is made of a flat aluminum material having a rectangular shape in plan view. As shown in FIG. 3, the base 1 includes a thick portion 3 having a large thickness and a thin portion 4 having a thickness slightly smaller than the thick portion 3. The thick portion 3 is provided with embedding holes 5a and 5b which are open to the block main body, and magnetic force generating members (magnets) 6a and 6b are embedded in the embedding holes 5a and 5b. The magnets 6a and 6b are arranged so as to be in contact with the bottom wall portion 8 of the block body 2 to be described later, and are circular so as to overlap most of the bottom surfaces of the hole portions 7a and 7b in plan view as shown in FIG. It has a shape. Thereby, the magnetic force for hold | maintaining the head 51 of the bolt member 50 in hole part 7a, 7b can be made to act on the bottom face of hole part 7a, 7b.

  A through hole 10 is provided in the thin wall portion 4 of the base 1. As shown in FIG. 1, a coil strap 15 composed of a coil wire 16 and an eggplant 17 is connected to the through hole 10 by a connecting member (ring) 18. Is attached through.

  The block body 2 is attached to the surface of the base 1 as shown in FIG. The block main body 2 is made of aluminum, and has a bottom wall portion 8 having the same shape as the thick portion 3 of the base 1 in plan view, as shown in FIG. And a peripheral wall portion 9 having two hole portions 7a and 7b. As a result, the holes 7 a and 7 b are closed by the bottom wall portion 8 and open to the side opposite to the base 1.

  As shown in FIG. 4, the holes 7a and 7b have a regular hexagonal shape in plan view, and the one hole 7a and the other hole 7b have the same shape but different sizes. The holes 7a and 7b have substantially the same shape as the head 51 of the bolt member 50 held in the holes 7a and 7b in plan view. Thereby, when the head 51 is fitted into the holes 7a and 7b, the rotation of the bolt member 50 around the axis is restricted. As shown in FIG. 3, the depth D of the holes 7a and 7b is equal to or greater than the thickness dimension D1 of the head 51 of the bolt member 50 held in each of the holes 7a and 7b (D> D1). ).

  As shown in FIG. 4, through holes 12 are respectively provided at four corners of the block main body 2, and screws 11 (see FIG. 2) are inserted into the through holes 12 so that the block main body 2 is attached to the base 1. It is fixed to.

  When the bolt member 50 is held by the bolt holder of the present invention, the head portion 51 of the bolt member 50 is fitted into the holes 7a and 7b. In this case, since the magnets 6 a and 6 b are embedded in the base 1, a magnetic force for attracting the head 51 of the bolt member 50 acts via the bottom wall portion 8. And the head 51 is hold | maintained by the hole parts 7a and 7b by attracting the head part 51 to the bottom face of the hole parts 7a and 7b.

  In this case, since the one hole portion 7a and the other hole portion 7b are different, the bolt member 50 having the head portion 51 corresponding to each of the hole portions 7a and 7b can be held. In this way, the bolt members 50 having different head 51 sizes can be held by one bolt holder.

  On the other hand, when removing the bolt member 50 held by the bolt holder, the head portion 51 is separated from the bottom surface of the holes 7a and 7b against the magnetic force by pulling the shaft portion 52 in the axial direction. Can be extracted from the holes 7a and 7b.

  Thus, according to the bolt holder of the present invention, the holes 7a and 7b are provided on one side of the block body, and the magnets 6a and 6b are disposed in the vicinity of the holes 7a and 7b. The head 51 can be held by magnetic force. Thereby, the head 51 of the bolt member 50 can be held in the holes 7a and 7b with a simple configuration, and the bolt member 50 can be effectively prevented from falling. Further, since the shapes of the holes 7a and 7b are substantially the same as the non-circular shape of the head 51, the bolt member 50 can be prevented from rotating in the circumferential direction while the bolt member 50 is held. Furthermore, since the depth of the holes 7a and 7b is equal to or greater than the thickness of the head 51, it is possible to stabilize the head 51 from coming out of the hole 7 even if the shaft 52 is impacted and displaced in the circumferential direction. Can be prevented. Thereby, this bolt holder is excellent in retainability and is optimal for work at high places.

  Since the embedding hole 5 is provided in the base 1 and the magnets 6 a and 6 b are embedded in the embedding hole 5, a magnetic force for attracting the head 51 can be applied. Thereby, the bolt member 50 can be stably held, and the holding function of the bolt member 50 can be further enhanced.

  Since the hole portions 7a and 7b having different sizes are provided in one block main body 2, the bolt members 50 of various sizes can be held, and the versatility is excellent.

  Since the block body 2 is made of aluminum, the weight can be reduced, and the block body 2 can be easily held with one hand, so that the workability can be further improved.

  As mentioned above, although it demonstrated per embodiment of this invention, this invention is not limited to the said embodiment, A various deformation | transformation is possible, for example, the surrounding wall part 9 and the bottom wall part 8 which comprise the block main body 2, and However, the peripheral wall portion 9 and the bottom wall portion 8 may be integrated. The number of the holes 7 provided in the block body 2 may be one, or may be three or more. When providing the several hole part 7, the shape and magnitude | size of each hole part 7 may differ.

DESCRIPTION OF SYMBOLS 1 Base 2 Block main body 3 Male-female structure 5 Embedded hole 6 Magnetic force generation member 7 Hole 50 Bolt member 51 Head 52 Shaft D Hole depth D1 Head thickness

Claims (5)

A bolt holder having a block body for holding a bolt member comprising a shaft portion and a non-circular head,
Provided on one side of the block body is a hole into which the head is fitted in a state where the rotation around the axis of the bolt member is restricted,
The hole portion is substantially the same as the shape of the head portion, and a magnetic force for holding the head portion in the hole portion acts in the vicinity of the hole portion as a depth greater than the thickness dimension of the head portion. The bolt holder characterized by having arrange | positioned the magnetic force generation member to make.   The block body includes a flat base and a block main body attached to the surface of the base, the hole is provided in the block main body, and an embedding hole is provided in the base. The bolt holder according to claim 1, wherein the magnetic force generating member is embedded in the embedding hole.   The bolt holder according to claim 1 or 2, wherein holes of different sizes are provided in one block body.   The bolt holder according to any one of claims 1 to 3, wherein a hole body having a different shape is provided in one block body.   The bolt holder according to any one of claims 1 to 4, wherein at least the block main body is made of aluminum.

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