JP5284193B2 - bolt - Google Patents

Description

  The present invention relates to a bolt used for locking a locking part on one end side of a housing to an article, screwing a nut to a screw part on the other end side, and tightening, and fixing two articles. It is.

  A structure in which a hexagonal column-shaped head is provided at one end of the housing, the head is formed as the locking portion, and a nut is screwed into the other end of the housing. It exists more than before.

  Instead of the hexagonal column shape from the beginning, it is made into a flat plate shape, or the housing is simply bent into an L shape, and the head (locking portion) is changed according to the article to be fixed (situation), or the head The case is arranged in an eccentric relationship.

  In any case, even if the length and diameter of the housing are the same, it is necessary to manufacture the bolt or manage it as a stock every time when the form of the head is changed according to demand.

  The present invention has been created with the objective of providing a suitable provision for inventory management and transportation, paying attention to such a normal situation.

A rod housing that is inserted through a horizontal member placed on the tube column into a vertical hole provided in a joint fitting fixed to one side of the tube column, and arranged on the horizontal member, and parallel to the one side of the tube column the rectangular plate-shaped head piece having a polarization with female screw on one side arranging by, screwed one end of the external thread of the rod rod into the female screw, and configured so as to be integrated with each other, said rod rod On the other end side protruding from the vertical hole, a male screw is provided in a direction opposite to the male screw.

According to the present invention, the head piece and the casing can be separated and used by being screwed together and assembled at the time of use, which is suitable for inventory management and transportation. Further, since the male screw provided at one end of the housing and the male screw provided at the other end are in a reverse screw relationship with each other, the tightening can be performed more firmly as the tightening nut is turned. And the bolt which strengthens joining strength of a pillar and a horizontal member can be provided.

The front view which shows a use condition. FIG. 2 is an enlarged view of a part of FIG. The top view of FIG.

  The drawings show the state of use of the bolt according to the present invention. In the figure, the pipe pillar p of a wooden building and the horizontal member b placed on the pipe pillar p are joined to the bolt B according to the present invention. An application example in which the metal fitting C is used in combination with each other and pulled together and tightened together is shown, and the bolt B is used for joining the shaft assembly.

  The bolt B has a rectangular plate-shaped head piece 2 provided with a female screw 2a at an eccentric position on the male screw 1a of the rod housing 1 in which male screws 1a and 1a 'are respectively engraved on one end side and the other end side. Are assembled with the rod housing 1 by being screwed into the male screw 1a on the one end side.

  The male screw 1a on one end side and the male screw 1a 'on the other end side of the rod housing 1a are in opposite directions, and the male screw 1a' on the other end side is used as an article for receiving the head piece 2 as a pressure receiving part. The tightening nut 3 is tightened and used.

Then, the joint bracket C is fixed to one side of the tube pillar p by a mounting bolt 11 and a mounting nut 12 screwed to the bolt 11, and placed on the tube pillar p in the vertical hole 13 provided in the joint bracket C. Further, one male screw 1a ′ side of the rod housing 1 is inserted through the through hole 14 provided in the horizontal member b, and the tightening nut 3 is attached to the end of the male screw 1a ′ (rod housing) side protruding from the vertical hole 13. When screwed and tightened, the head piece 2 in which one side where the female screw is biased is arranged in parallel with one side of the tube pillar p is provided on the horizontal member b, and the fastening nut 3 is provided with the vertical hole 13. It is press-contacted to the joining metal fitting C, respectively, and the joining state of the column p and the horizontal member b can be obtained.

  Incidentally, since the screws 1a and 1a 'are engraved in directions opposite to each other, even if one of the head piece 2 and the tightening nut 3 to be screwed together is tightened, the other side does not loosen.

The rod housing 1 and the head piece 2 are of course made of metal (steel), and the internal thread 2a provided on the head piece 2 is arranged in an eccentric position so that the bolt B can be arranged as much as possible. This is because the bonding strength between the column p and the horizontal member b is strengthened in the vicinity of p.

1 Rod body 1a, 1a 'Male thread 2 Head piece 2a Female thread 3 Clamping nut

Claims (1)

A rod housing that is inserted through a horizontal member placed on the tube column into a vertical hole provided in a joint fitting fixed to one side of the tube column, and arranged on the horizontal member, and parallel to the one side of the tube column the rectangular plate-shaped head piece having a polarization with female screw on one side arranging by, screwed one end of the external thread of the rod rod into the female screw, and configured so as to be integrated with each other, said rod rod The bolt which provided the external thread in the other end side which protrudes from the said vertical hole in the direction opposite to the said external thread.

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