JP2009046952A - Brace joint metal fitting of wooden building - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a joint metal fitting for installing a brace in any condition irrespective of the installation angle, thickness and width of the brace. <P>SOLUTION: The brace joint metal fitting comprises a horizontal member metal fitting 4 set in contact with and fixed on a horizontal member, a brace metal fitting 8 set in contact with and fixed on the brace and a joint metal fitting for joining the horizontal member metal fitting 4 and the brace metal fitting 8. The horizontal member metal fitting 4 comprises a plate-like section fixed on the horizontal member with a bolt and a brace metal fitting receiving section vertically fixed on the plate-like section and having a hooking groove and a bolt insertion hole, and the brace metal fitting 8 comprises a long narrow strip of plate fixed on the brace with a bolt and provided with a bolt hole. The joint metal fitting comprises a body section having a bolt hole and a protrusion hole and wing plates erected from both ends. A bolt is inserted in the bolt hole of the brace metal fitting 8, the hooking groove in the brace metal fitting receiving section of the horizontal member metal fitting 4 and the bolt hole of the joint metal fitting, and a lug screw bolt is inserted in the protrusion hole of the joint metal fitting and the bolt hole of the brace metal fitting receiving section of the horizontal member metal fitting 4 for joining. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

The present invention relates to a brace joint hardware for fixing a brace member to a joint portion between a vertical member and a horizontal member of a wooden building.

Conventionally, when a brace material is fixed to a joint between a vertical member and a horizontal member, for example, as shown in FIG. 7, a plurality of nail holes and one bolt hole are provided on one metal plate. A brace bracket is generally used.

In addition, as shown in Patent Document 1, a vertical member fixing plate that is fixed to a vertical member and a horizontal member fixing plate that is fixed to a horizontal member are connected perpendicularly to each other, and one side edge between these fixing plates In addition, a joining method (FIG. 8) using a joining metal fitting in which a brace mounting plate having an appropriate number of insertion holes for inserting the fastening rods is provided.
Patent No. 3012624

However, as shown in Patent Document 1, in the prior art, unless the vertical member such as a column and the horizontal member such as a beam and a base are installed, the brace joint hardware is brought into contact with each of the vertical member and the horizontal member. Because it was not possible, it was forced to be installed on site, and time was required for field work.

In addition, when fixing the brace material as in the past, if the joint metal is fixed to both the vertical member and the horizontal member, the shear force applied to the brace member due to the roll during an earthquake is applied to the vertical member. There was concern about the vertical material being destroyed.

When fixing the brace material, it was necessary to prepare the brace joint hardware of the size suitable for each depending on the thickness and width of the brace material.

Furthermore, when fixing the brace material to two or three sides of the same vertical member, there is a possibility that nails used for the brace joint hardware for fixing each brace member may interfere with each other in the same vertical member. In each case, it was necessary to shift and fix the fixing part of the brace joint hardware.

In addition, when fixing the brace material, the fixing angle of the brace member to be fixed varies depending on the ratio of the length of the vertical member and the horizontal member combined. Therefore, in the case of using the conventional brace joint hardware, it is necessary to prepare the brace joint hardware adapted to each according to the angle of the brace material.

The present invention has been made in view of such circumstances, and can be fixed regardless of the angle, thickness, or width of the brace material to be installed, and reduces the force borne by the vertical material. In addition, the present invention is to provide a brace joint hardware that is cost-effective and has high work efficiency.

The metal fitting of claim 1 is
A brace joint hardware that fixes a brace material to the joint between a vertical member and a horizontal member of a wooden building,
A horizontal member hardware fixed to the horizontal member,
Brace hardware fixed against the brace material,
It is equipped with a metal fitting for joining a horizontal member hardware and a brace hardware,
The horizontal member is composed of a plate-shaped portion and a brace-shaped bracket receiving portion vertically fixed to the plate-shaped portion, the plate-shaped portion is provided with a screw hole, and the brace bracket receiving portion Form a locking groove and bolt insertion hole in
The brace consists of a member of an elongated plate, and forms a screw hole and a bolt insertion hole,
The joining hardware consists of a body part and a blade that is erected from both ends of the body part, and a bolt insertion hole and a projection hole are formed in the body part,
Inserting insertion bolts into the bolt insertion holes of the metal fittings, the locking grooves of the metal fitting receiving portions of the horizontal bracket hardware, and the bolt insertion holes of the bonding hardware,
It is fixed by inserting a lag screw bolt into the projection hole of the joining hardware and the bolt insertion hole of the brace receiving part of the horizontal member.

The joint hardware of claim 2 is:
The bolt insertion hole of the metal fitting is a protruding insertion hole for engaging with a locking groove formed in the metal fitting receiving portion of the horizontal member.

The metal fitting of claim 3 is
A small protrusion is provided on the horizontal member installation surface of the plate-like portion of the horizontal member and is fitted into a fitting groove formed in the horizontal member.

According to the invention of claim 1,
The horizontal bracket hardware that abuts and is fixed to the horizontal member, the brace hardware that abuts and is fixed to the brace, and the joint hardware that joins the horizontal bracket and the brace is configured separately. Therefore, in the factory, it is possible to fix the horizontal bracket hardware to the horizontal member and the brace hardware to the brace material before delivery to the site. At the site, each hardware is fixed with bolts. Since only work is required, work efficiency is improved.

In addition, since the brace joint hardware is not fixed to the vertical member, the shearing force applied to the brace due to the rolling in the event of an earthquake is transmitted only to the horizontal member, so the burden on the vertical member is reduced.

In addition, the horizontal bracket hardware and brace hardware can be used when installing the brace material in any situation because the thickness and width of the brace material can be selected. To do.

In addition, even when the brace fittings are fixed to the two or three sides of the same vertical member, nails used for the brace fittings for fixing the brace members interfere with each other. There is nothing.

According to the invention of claim 2,
By fixing the brace's bolt insertion hole to the horizontal bracket, the brace's bolt insertion hole locks the horizontal bracket's brace receiving part. By engaging with the groove, it is inevitably possible to position the brace.
In addition, since the bolt insertion hole of the brace can slide freely inside the locking groove, the angle of the brace can be freely set.

According to the invention of claim 3,
The small protrusions formed on the horizontal member installation surface of the horizontal member fitting are fitted into the fitting groove of the horizontal member, so that the position of the horizontal member hardware is inevitably determined, and the installation position shifts. Can be prevented.

Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.

Here, FIG. 1 is a plan view, a side view, and a rear view of a horizontal member hardware among the brace joint hardware of the present invention. 2 is a plan view, a side view, and a rear view of the brace fitting among the brace fittings, and FIG. 3 is a plan view, a side view, and a rear view of the joining fitting among the brace fittings. is there. FIG. 4 is a perspective view when the brace joint hardware is installed on the horizontal member and the brace, and FIG. 5 is a process diagram for explaining the brace joint. FIG. 6 is a side view in which the angle of the brace can be installed freely.

As shown in FIG. 4, the brace fitting 1 of the present invention is a brace fitting that fixes the brace 3 to the joint between the vertical member 10 and the horizontal member 2 of the wooden building,
As shown in FIGS. 1 to 3, a horizontal member 4 that abuts and is fixed to the horizontal member 2, a brace 8 that abuts and is fixed to the brace material 3, a horizontal member and a brace metal A metal fitting 9 for bonding is provided.

As shown in FIG. 1, the horizontal member 4 is a brace that is formed by bending a metal plate that is welded and fixed vertically to a plate-like portion 5 and a plate-like portion made of a metal plate into a U-shaped cross section. The plate-like portion 5 is provided with a plurality of screw holes 5a for fixing to the horizontal member 2, and one small protrusion 5b on the installation surface on the horizontal member side. Has a semicircular locking groove 7a and a circular bolt insertion hole 7b. The locking groove 7a is formed from the upper edge to the lower edge of the brace receiving part 6 and has a predetermined depth. Further, an inclined surface 7c as a chamfer is formed on the side of the locking groove 7a.

As shown in FIG. 2, the brace metal 8 is composed of an elongated plate body metal plate provided with a plurality of screw holes 8 a to be fixed to the brace material 3, and a protruding insertion hole 8 b at the tip portion, The protruding insertion hole 8b is substantially equal to or slightly smaller than the width of the locking groove 7a formed in the flat metal fitting receiving portion 6 of the horizontal member 4 and can freely enter the locking groove 7a. The diameter is set so that it can slide.

As shown in FIG. 3, the joining hardware 9 is a wing plate erected from the body 13 and both ends of the body so as to be in close contact with the inside of the brace receiving part 6 formed on the horizontal member 4. 14, the bolt insertion hole 9 a and the projection hole 9 b are formed at the same position as the locking groove 7 a and the bolt insertion hole 7 b formed in the bracket receiving part 6 when combined with the bracket receiving part 6. ing.

Next, an example of a procedure for fixing the brace to the joint portion of the vertical member 10 and the horizontal member 2 using the brace joint hardware according to the present invention will be described.

As shown in FIG. 5, first, a fitting groove into which a small protrusion 5 b formed on the horizontal member 4 is fitted to a horizontal member portion at a corner portion formed by the vertical member 10 and the horizontal member 2. 2 a is provided, and the small protrusion 5 b of the horizontal member 4 is fitted and brought into contact with the fitting groove 2 a, and a screw is driven from the screw hole 5 a to fix the horizontal member 4 to the horizontal member 2.

Also, the end of the brace material 3 is processed to match the joint between the vertical member 10 and the horizontal member 2, and the brace 8 is brought into contact with the end so that the protruding insertion hole 8b is on the outside, Screws are struck from the screw holes 8a to fix the brace hardware 8 to the brace material 3.
Further, the brace 3 is formed with a through hole 3a at a position aligned with the protruding insertion hole 8b.

Next, the brace 8 fixed to the brace 3 is joined to the horizontal bar 4 fixed to the horizontal 2. At this time, a protruding insertion hole 8 b formed in the brace 8 from the back side of the brace receiving part 6 is inserted into the locking groove 7 a formed in the brace receiving part 6 of the horizontal member 4. Engage so that it drops from the top.
The inclined surface 7c as a chamfer formed on the upper edge side of the locking groove 7a has an effect of facilitating the engagement with the locking groove 7a.

Further, the joining hardware 9 abuts from the inside of the brace receiving part 6 of the horizontal hardware 4. At this time, the bolt insertion hole 9a formed in the joining hardware 9 is aligned with the locking groove 7a formed in the brace receiving part 6, and the projection hole 9b is inserted into the bolt insertion hole 7b.

Then, the insertion bolt 11a is inserted into the through hole 3a formed in the brace 3 from the side opposite to the side surface on which the brace 8 is installed, and the protruding insertion hole 8b of the brace 8 and the horizontal member 4 are inserted. The fastening groove 7a formed in the brace hardware receiving portion 6 and the bolt insertion hole 9a of the joining hardware 9 are passed through and tightened with the tightening nut 11b on the joining hardware 9 side.
At the same time, the lag screw bolt 12 is inserted through the projection hole 9b formed in the joining hardware 9 and penetrated through the bolt insertion hole 7b of the horizontal mounting hardware 4 to be fastened and fixed to the brace 3.

As described above, the brace fitting 1 according to the present embodiment does not come into contact with the vertical member 10. Therefore, the horizontal brace 4 is fixed to the horizontal member 2 in advance in the factory, and the brace 3 is It can be delivered to the worksite after fixing the metal hardware 8 and can be fixed by joining the hardware with bolts at the worksite to improve work efficiency. Is possible.

Further, the force applied to the brace material 3 with respect to the rolling at the time of the earthquake is mostly transmitted only by the horizontal member 2 by the brace fitting 1 of the present invention, so that the burden on the vertical member 10 is reduced, and the vertical The destruction of the material 10 can be prevented.

Further, when the brace 8 fixed to the brace 3 is joined to the horizontal brace 4 fixed to the horizontal member 2, the insertion bolt 11 a is tightened with the tightening nut 11 b and the lug screw bolt 12 is attached. Therefore, the brace material 3 can be used for installation of the brace material 3 in any situation regardless of the thickness and width of the brace material 3 and the cost can be reduced.

In addition, by joining the brace 8 fixed to the brace 3 to the horizontal brace 4 fixed to the horizontal member 2, the protruding insertion hole 8 b of the brace 8 is formed into the horizontal brace 4. Since it is possible to slide freely in the locking groove 7a formed in the brace receiving part 6 of the brace, the angle of the brace material 3 should be freely set as shown in FIG. Is possible.

In addition, the brace | joint metal fitting 1 which concerns on embodiment is not limited to the above-mentioned structure, Various structural changes are possible.
For example, a plurality of insertion bolts 11a and lag screw bolts 12 used when joining the brace hardware 8, horizontal member metal 4, and joining hardware 9 are formed, and a plurality of bolt insertion holes and small protrusions are formed. It is possible to make changes without departing from the spirit of the present invention.

It is a top view, a side view, and a rear view of a horizontal member of the brace joint hardware of the present invention. It is a top view, a side view, and a rear view of a brace fitting among brace joint fittings of the present invention. It is the top view, side view, and rear view of the metal fitting for joining among the brace metal fittings of this invention. It is a perspective view at the time of installing the brace joint metal fittings of the present invention in a horizontal member and a brace member. It is process drawing for demonstrating the brace material fixation in the brace joint metal fitting of this invention. It is a side view in which the angle of a brace material can be installed freely in the brace joint metal fitting of the present invention. It is a perspective view which shows the state in which the vertical member, the horizontal member, and the brace are being fixed by the conventional brace plate. It is a perspective view which shows the conventional brace joint metal fitting.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Brace joint metal 2 Horizontal material 3 Brace material 4 Horizontal material metal 5 Plate-like part 5a of horizontal material hardware Screw hole 5b of horizontal material hardware Small protrusion 6 of horizontal material hardware 6 Brace material receiving part 7a Semicircular locking groove 7b Bolt insertion hole 7c Inclined surface 8 Bracket 8a Brace screw hole 8b Brace protrusion insertion hole 9 Joining hardware 9a Joining hardware bolt insertion hole 9b Joining hardware Projection hole 10 Vertical member 11a Insertion bolt 11b Clamping nut 12 Lag screw bolt 13 Body part 14 for joining hardware Blade of joining object

Claims (3)

A brace joint hardware that fixes a brace material to the joint between a vertical member and a horizontal member of a wooden building,
A horizontal member hardware fixed to the horizontal member,
Brace hardware fixed against the brace material,
It is equipped with a metal fitting for joining a horizontal member hardware and a brace hardware,
The horizontal member is composed of a plate-shaped portion and a brace-shaped bracket receiving portion vertically fixed to the plate-shaped portion, the plate-shaped portion is provided with a screw hole, and the brace bracket receiving portion Form a locking groove and bolt insertion hole in
The brace consists of a member of an elongated plate, and forms a screw hole and a bolt insertion hole,
The joining hardware consists of a body part and a blade that is erected from both ends of the body part, and a bolt insertion hole and a projection hole are formed in the body part,
Inserting insertion bolts into the bolt insertion holes of the metal fittings, the locking grooves of the metal fitting receiving portions of the horizontal metal fittings, and the bolt insertion holes of the bonding hardware,
A metal joint, which is fixed by inserting a lag screw bolt into a projection hole of the metal fitting for joining and a bolt insertion hole of a brace metal receiving part of the horizontal member. The bolt insertion hole of the metal fitting is a protruding insertion hole for engaging with a locking groove formed in the metal fitting receiving part of the horizontal member. The listed joint hardware. The projection according to claim 1 or 2, wherein a small protrusion is provided on a horizontal member installation surface of the plate-like portion of the horizontal member and fitted in a fitting groove formed in the horizontal member. Bonded hardware.

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