JP2003025240A - Special fastening and loosening tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tool capable of easily fastening and loosening a hexagonal nut, a hexagonal bolt, a special bolt, a nut, a pipe union nut, a small screw and the like in a narrow place. SOLUTION: A number of holes 4 are bored in arbitrary positions of a fastening fitting 1 for fastening the bolt, the nut, the pipe union, the small screw and the like, and the holes are used to insert a rod or a handle 2. Fastening or loosening operation is performed by taking the rod or the handle 2 as a hand hold.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tool for tightening and loosening in narrow places such as hexagon bolts, hexagon nuts, special bolts, special nuts, pipe union nuts, pipe joints, small screws, etc. used for railway vehicles and rail vehicle parts. , About jigs.

[0002]

2. Description of the Related Art As a conventional tightening and loosening method, two holes are opened in a fastening metal fitting and a rod is inserted into the hole or a rod is welded and fixed to have a T-shaped or L-shaped handle structure. There is a method of tightening and loosening hexagon bolts. Particularly, as tools for tightening and loosening, there are commercially available +,-driver, monkey spanner, spanner, pipe wrench, ratchet wrench and the like.

[0003]

SUMMARY OF THE INVENTION In the present technology, when fastening or loosening of mounting bolts or the like occurs during internal mounting or underfloor mounting of railcars and railcar parts, pipes, equipment, and metal fittings are provided around them. , Electric wires, etc.
In the commercially available tightening tool used, when the work occurs in a narrow place where the handle interferes with the structure in the rotation direction and cannot rotate, for that reason, cut the handle part of the tool shortly, and in that situation It is necessary to manufacture the special tool that was there and to specialize it.

Therefore, in order to overcome the above-mentioned problems, the present invention is characterized in that tightening and loosening can be performed without requiring a special tool.

[0005]

According to the present invention, a large number of holes are formed in the surface of a fastener, and a rod or a handle is inserted into the hole so that the rod and the handle are rotated in the direction of rotation so as not to interfere with surrounding structures. It is possible to tighten or loosen while inserting the rod or handle into the hole opened in the direction of rotation.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment shown in FIGS. 1 to 4 will be described below. FIG. 1 shows a tool for tightening and loosening a hexagon bolt, a union nut, or a hexagon nut 3, and shows a donut type as a structure. A horizontal or vertical hole 4 is formed on the upper surface or the side surface of the tightening fitting 1, and the hole 4 is tapped or drilled, and the hole 4 is provided with a rod or a handle 2. It can be tightened and loosened by inserting it.

When the rod or the handle 2 interferes with the rotating direction during rotation, a large number of holes 4 are formed in a direction that does not interfere with the structure, and the rod or handle 2 is inserted into the hole 4. It can be tightened and loosened by inserting it.

Referring to FIG. 2, when the tightening metal fitting 9 is a hook type and there is a structure or the like around the hexagon bolt, the union nut or the hexagon nut 3, the donut type of the tightening metal fitting 1 of FIG. To do. A horizontal or vertical hole 4 is formed on the upper surface or the side surface of the tightening metal 9, and the hole 4 is tapped or drilled, and the hole 4 is provided with a rod or a handle 2. It can be tightened and loosened by inserting it.

FIG. 3 shows a small screw tightening and loosening tool. Bit 5 for tightening metal fitting 10 (+ screwdriver at tip, −
A screwdriver, a special-shaped screwdriver), and a lateral hole 4 is formed on the side surface. The hole 4 is a tapped screw or a drilled hole.
By inserting the handle 2, the handle 2 can be tightened and rotated in the loosening direction.

FIG. 4 shows that the upper surface or the side surface of the fastening member 11 is
The holes 4 are formed in the horizontal and vertical directions, and the holes 4 are tapped and drilled, and can be tightened and loosened by inserting a rod or handle 2 into the holes 4. It is a thing. In addition, a presser foot 7 is attached to the tip of the rod or the handle 2 so that even if the size of the attachment bolt changes, it can flexibly cope. Further, there is a pin 8 in the middle of the rod or handle 2, and the rod or handle 2 is bent and can be tightened and rotated in a loosening direction without interfering with surrounding structures.

FIG. 5 shows that the upper surface or the side surface of the tightening fitting 12 is
The holes 4 are formed in the horizontal and vertical directions, and the holes 4 are tapped and drilled, and can be tightened and loosened by inserting a rod or handle 2 into the holes 4. It is a thing. It is characterized in that it can be flexibly adapted to a bolt size by a presser foot 7, and that a pin 8 is provided in the middle of the rod or handle 2 so that the rod or handle 2 bends and can be tightened and rotated in a loosening direction without interfering with surrounding structures. .

[0012]

Industrial Applicability According to the present technology, when tightening or loosening of mounting bolts or the like occurs during internal mounting or underfloor mounting of railcars and railcar parts, pipes, equipment, metal fittings, electric wires, etc. can be secured around them. If there is a structure, and in a commercially available tightening tool that is usually used, when the work occurs in a narrow place where the handle interferes with the structure in the rotation direction and cannot rotate, for that reason, the handle part of the tool is It is necessary to cut it into short pieces, manufacture a special tool suitable for the situation, and specialize it.

Therefore, in order to overcome the above-mentioned problems, the present invention is characterized in that tightening and loosening can be performed without requiring a special tool.

[Brief description of drawings]

FIG. 1 is a schematic diagram and an application example diagram.

FIG. 2 is a schematic diagram and an application example diagram.

FIG. 3 is a schematic diagram and an application example diagram.

FIG. 4 is an application example diagram of FIG. 1.

FIG. 5 is an application example diagram of FIG.

[Explanation of symbols]

1 ... Tightening fitting, 2 ... Rod or handle, 3 ... Hexagon bolt or union nut, Hexagon nut, 4 ... Hole (cutting hole or tapped thread) 5 ... Bit (+ driver, -driver, special-shaped driver), 6 ... screws (tip + screw, -screw, special screw), 7 ... presser foot, 8 ... pin (variable rod or handle 2), 9 ... tightening fitting (hook type), 1
0 ... Tightening fitting, 11 ... Tightening fitting, 12 ... Tightening fitting (hook type).

Claims (2)

[Claims] 1. Hexagon bolts, hexagon nuts, special bolts,
When tightening special nuts, pipe union nuts, pipe joints, small screws, etc., make a number of holes in the tightening metal fittings and arbitrary positions of the tightening metal fittings, and use the holes to insert a rod or handle, Apply force in the tightening direction or loosening direction as a handle, and in a narrow place,
A tool that can be tightened or loosened without interfering with surrounding structures. 2. The above-mentioned handle has a hexagon bolt, a hexagon nut, a special bolt, a special nut, a pipe union nut, and a presser foot so that the size of the pipe joint can be changed, and the handle is foldable. Insert the stick from the side,
A tool that can be rotated vertically.