JPH02285129A - Bolt jointing metal fitting - Google Patents

Abstract

PURPOSE:To facilitate the jointing of members by inserting rear metal fittings provided with a screw slot set eccentrically from the central section, into a space between a joint metal fitting provided with a loose hole, and a jointed member, to be freely moved. CONSTITUTION:A joint metal fittings 1 is formed with base plates 3, 3 and a connecting plate 4, and fitting slots 5, 5 and a slender longish penetration slot 6 are arranged. After that, on a circular-plate-shaped rear metal fittings 2, a screw slot 10 is set on the section set eccentrically from the central section. Then, the bolt slot 12 of a joint member 11 is put together with the slot 6 of the connecting plate 4, and on the screw slot 10 of the rear metal fittings 2, a joint bolt 13 is spirally fitted, and is jointed to a member 7 to be jointed. As a result, even if the bolt slot of the member is slightly shifted positionally, it is easily corrected and the member can be jointed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates primarily to bolt joint fittings for joining wooden members together.

[Prior Art] In general, bolt-based joints have greater toughness and strength than nails or adhesives, and are therefore widely used in wooden structures.

[Problem to be solved by the invention]

However, when joining wooden parts with bolts, the bolt holes in the parts to be joined must be set accurately, and if the bolt holes are even slightly misaligned, the bolts may not be able to be inserted. .

For this reason, there has been a strong desire among those involved to develop a bolt joint fitting that can be joined with bolts even if the bolt holes are slightly out of alignment.

This invention was developed in response to these demands.
Even if the bolt holes of the parts you are trying to join are slightly misaligned,
It is an object of the present invention to provide a bolt joint fitting that can easily correct this problem and reliably join members together.

[Means to solve the problem]

The present invention mainly relates to bolt joint fittings for joining wooden members together, and includes a joint fitting fixed to the members to be joined, and a bolt connecting fitting for joining wooden members together. A back metal fitting is inserted in a movable state, and a loose hole is provided in the joint metal fitting, and a screw hole for screwing a joining bolt through the loose hole is provided in the back metal fitting eccentrically from the center of the back metal fitting. The above object is achieved by the configuration provided.

〔Example] Hereinafter, the present invention will be explained with reference to an illustrated embodiment.

The bolt joint fitting of this invention is composed of a joint fitting 1 and a back fitting 2.

The joint fitting 1 is a rectangular plate-shaped piece 2 with a certain thickness.
The two base plates 3, 3 are installed vertically or horizontally separated for a certain period of time, and these two base plates 3, 3
One connecting plate 4 is welded and fixed on top of the two base plates 3.3, and mounting holes 5, 5,
It is constructed by forming bolt through holes 6 in approximately the center of the connecting plate 4, respectively.

The through hole 6 is formed in a circular shape or in the shape of an elongated hole vertically or horizontally.

The joint fitting 1 configured as described above is attached to the member 7 to be joined, and the screw 8 is attached to the member 7 to be joined through the mounting hole 5.5.
．． 8 is firmly fixed to the member 7 to be joined.

A space 9 corresponding to the thickness of the base plate 3 is created between the member to be joined 7 and the connection plate 4, and the back metal fitting 2 is inserted into this space 9.

The back metal fittings 2 are the upper and lower or left and right base plates 3 of the space 9.
It is formed into a circular plate shape that can be freely rotated and inscribed between the three parts, and a screw hole 10 is bored at a part slightly eccentric from the approximate center thereof.

The joining member 11 is placed on the connecting plate 4 of the joint fitting 2, and the bolt hole 12 of the joining member 11 is
are overlapped with the bolt insertion holes 6 of the connecting plate 4.

The joining member 11 is joined to the member 7 to be joined by screwing the joining bolt 13 into the screw hole 10 of the back metal fitting 2 through the bolt hole 12 and the bolt insertion hole 6.

In such a case, if you want to slightly shift the joining position of the joining member 11 in the vertical or horizontal direction, move the back metal fitting 2 into the space 9.
After adjusting the position of the screw hole 10 to a predetermined position by appropriately rotating the screw hole 10 within the housing, the connecting bolt 13 is screwed into the screw hole.

The thicknesses of the base plate 3.3 of the joint fitting 2 and the connecting plate 4, as well as the diameter of the joining bolt 13, are determined depending on the magnitude of the external force acting on the joint.

〔Effect of the invention〕

Since the present invention has the above configuration, it has the following effects.

(2) The joining position of the members to be joined can be easily changed by appropriately moving the back metal fitting to shift the position of the tapped hole and then screwing together the joining bolt.

Therefore, even if the screw holes are slightly misaligned, you can correct this and
The joining members can be reliably joined at accurate positions.

Moreover, since the structure is extremely simple, handling is also easy.

[Brief explanation of drawings]

Figures 1 to 3 show an embodiment of the present invention, with Figure 1 being an exploded side view of the joint showing the installed state of the joint fitting and back fitting, and Figure 2 showing the joint fitting and back fitting. A front view, and FIG. 3 is a side view thereof. 1... Joint metal fittings, 2... Back metal fittings, 3... Base plate, 4... Connection plate, 5 Mounting holes, 6...
... Bolt through hole, 7... Member to be joined, 8... Screw, 9... Space, 10... Screw hole, 11... Joining member, 12... Bolt hole, 13...・Joining bolt. Patent applicant Asahi Kasei Industries, Ltd.

Claims (1)

[Claims] (1) Consisting of a joint metal fitting that is fixed to the member to be joined, and a back metal fitting that is inserted into the space between the joint metal fitting and the member to be joined so that it can move freely, and a loose hole is provided in the joint metal fitting. The bolt joint fitting is also characterized in that the back metal fitting is provided with a screw hole for screwing a joining bolt through the loose hole eccentrically from the center of the back metal fitting.