JP5203101B2 - Wooden bracing corner mounting structure - Google Patents

Description

The present invention relates to a corner fitting structure and corner fitting hardware for wooden bracing, and in particular, a wooden brace installed inside a wall frame by a pair of left and right column members and a pair of upper and lower horizontal members. The present invention relates to a corner fitting structure of a wooden brace that joins a corner of a material and a horizontal member and fastens a column pulling bolt, and a corner fitting that is used in the corner attachment structure.

  For example, as a wall structure of a building such as a wooden house building, a wooden bracing is placed inside a wall frame made up of a pair of pillars consisting of columns and vertical frames and a pair of horizontal members consisting of beams and foundations. What improved the wall strength by attaching is known. In addition, these wooden bracings are generally configured such that one end or both ends thereof are joined to the joining corners of the column member and the horizontal member via the corner fittings (for example, Patent Document 1).

In addition, since the column corner and the horizontal member are often attached with a pulling bolt for tightening the column pulling bolt and pulling the column member to the horizontal member side. There has also been developed a hardware in which a function as a corner mounting hardware for mounting an end portion of a wooden bracing is added to an attracting hardware (see, for example, Patent Document 2).
JP 2000-104342 A JP 2002-339456 A

  As shown in FIG. 5, the attracting metal of Patent Document 2 includes a back plate portion 50, a brace fixing portion 51, and a through bolt engaging engagement portion 52. The back plate portion 50 has both side portions. The brace fixing part 51 is formed by enlarging a part of the rising part 53a on one side, and the penetrating engagement part 52 is a back plate part. 50 is provided in a U-shaped cross section between the rising portions 53a and 53b on the base end side, and the structure is complicated and the processing is not easy. Furthermore, in the attracting metal of Patent Document 2, the central axis of the bracing 54 joined to the attracting metal and the central axis of the attracting bolt 55 are arranged so as to be three-dimensionally crossed from the same plane. As a result, an uneven load may be applied and a stable bonded state may not be maintained.

  The present invention has been made paying attention to such a conventional problem, and the structure of the hardware to be used is simple and easy to process, and the center axis of the wooden bracing to be joined and the drawing bolt Provided is a wooden bracing corner mounting structure that can be arranged so as to intersect a central axis on the same plane to obtain a stable joint state, and a corner mounting hardware used for the corner mounting structure. Objective.

In the present invention, the ends of the wooden bracing installed inside the wall frame body by the pair of left and right column members and the pair of upper and lower horizontal members are joined to the joining corner of the column member and the horizontal member And a pair of wooden bracing corner attachment structures for fastening the column pulling bolts, including a L-shaped cross-sectional portion including a column joining surface portion and a bracing joint surface portion in which a plurality of screw fastening holes are formed. The joint hardware is attached to the joint corner by projecting the bracing joint surface portion in parallel by joining the column joint surface portion to the column material, and the end of the wooden bracing is a pair. In a state of being sandwiched between the bracing joint surface portions of the bracing joint surface and joined to the bracing joint surface portions on both sides, and in the portion between the wooden bracing and the pillar material, It is supported on the edge part of the surface part opposite to the horizontal member, and the bolt fasteners are arranged on both sides. Across the mating engagement surface is disposed on the end portion of the wooden muscle exchange which is joined to the muscle mating engagement surface of the joining hardware penetrates the portion where the column attracting bolts are arranged, A bolt insertion hole is formed, and the end of the column pulling bolt extending through the horizontal member is inserted into the bolt insertion hole formed at the end of the wooden bracing, and the bolt The object is achieved by providing a wooden bracing corner mounting structure that protrudes from a fastening portion of a fastening metal and is fastened to a bolt fastening hole of the bolt fastening metal.

  Further, according to the wooden bracing corner mounting structure of the present invention, the joint hardware is bent and provided perpendicularly to the end of the horizontal member and perpendicularly to the column joint surface portion and the brace joint surface portion. It is preferable that a contact surface portion is provided, and the contact surface portion is attached to the joining corner portion in a state where the contact surface portion is in contact with the horizontal member.

  Further, according to the wooden brace corner mounting structure of the present invention, the wooden brace consists of a pair of unit braces, and the other end of the wooden brace constitutes a joining corner where the ends are joined. It is preferable that the struts are joined to an intermediate portion of the other column member facing the column member to form a K-shape together with the other column member.

  In addition, the present invention is a corner mounting hardware used in the above-described wooden bracing corner mounting structure, and is an L-shaped cross-sectional portion comprising a column joining surface portion and a bracing joint surface portion in which a plurality of screw fastening holes are formed. A pair of metal fittings, and the pair of metal fittings attached to the joint corners by joining the column joint surface portion to the column material and projecting the bracing joint surface portion in parallel. Bolt fasteners disposed across the muscular junction surface portions on both sides of the cross joint surface portion that are supported on the opposite edge of the horizontal member, and extending through the horizontal member. Thus, the above-mentioned object is achieved by providing a corner-mounting metal fitting whose end is composed of a column pulling bolt that is fastened to the bolt fastening hole of the bolt fastening metal.

  According to the corner attachment structure or corner attachment hardware of the wooden brace of the present invention, the structure of the hardware to be used is simple and easy to process, and the center axis of the wooden brace to be joined and the drawing bolt A stable joining state can be obtained by arranging the central axis so as to intersect the same plane.

  1 and 2, a corner attachment structure 10 for wooden bracing according to a preferred embodiment of the present invention is a wall structure in a partition wall of a building such as a wooden house building. For example, when the wooden bracing 14 is attached to the inner side of the wall frame 11b and the pair of upper and lower horizontal members 12a and 12b, the wall strength of the partition wall is improved. Moreover, in this embodiment, the wooden bracing 14 is composed of a pair of unit bracings 14a and 14b, and these end portions are, for example, joint corners between one column member 11a and one horizontal member 12a. The corner portion mounting structure 10 of the present embodiment is employed when joining to the joint corner portions 13b of 13a or one column member 11a and the other horizontal member 12b. Further, in the corner portion mounting structure 10 of the present embodiment, the column pulling bolts 15 extending through the horizontal members 12a and 12b are also fastened, and the fastened columns are secured. The central axis X of the pulling bolt 15 and the central axis C of the unit bracing 14a, 14b joined can be easily arranged so as to intersect on the same plane (including substantially the same plane). It has become.

  And the corner | angular part attachment structure 10 of the wooden reinforcement of this embodiment is the wooden reinforcement installed inside the frame for walls by a pair of left and right pillar material 11a, 11b and a pair of upper and lower horizontal members 12a, 12b. 14 is a corner portion mounting structure in which the end portion of 14 is joined to the joining corner portions 13a and 13b of one pillar member 11a and the horizontal members 12a and 12b, and the column pulling bolt 15 is fastened. A pair of joint hardware 20 including an L-shaped cross-sectional portion 19 composed of a column joint surface portion 17 and a bracing joint surface portion 18 in which a screw fastening hole 16 (see FIGS. 3A and 3B) is formed is a column joint. By joining the surface portion 17 to one of the pillar members 11a, the bracing joint surface portion 18 is projected in parallel and attached to the joining corner portions 13a and 13b, and the wooden bracing 14 (unit bracing 14a and 14b) is attached. The end is sandwiched between the pair of muscle joint surfaces 18 In the state of being attached, it is joined and attached to the bracing joint surface portions 18 on both sides, and the horizontal members 12a and 12b of the bracing joint surface portion 18 in the portion between the wooden bracing 14 and the one pillar 11a. The bolt fastening 21 is supported across the opposite edge of the rod and is disposed across the bracing joint surfaces 18 on both sides, and the column pulling is extended through the horizontal members 12a and 12b. The ends of the bolts 15 are fastened to the bolt fastening holes 21 a of the bolt fastening hardware 21.

Moreover, in the corner | angular part attachment structure 10 of this embodiment, the joining hardware 20 is contact | abutted at the edge part by the side of the horizontal members 12a and 12b, and bends perpendicularly | vertically with the column joining surface part 17 and the bracing joint surface part 18. A surface portion 22 is provided, and the contact surface portion 22 is attached to the joining corner portions 13a and 13b in a state where the contact surface portion 22 is in contact with the horizontal members 12a and 12b.

  Furthermore, in the corner | angular part attachment structure 10 of this embodiment, the wooden bracing 14 consists of a pair of unit bracings 14a and 14b as mentioned above, and these other ends are joined to the end. It is joined to the middle part of the other pillar member 12b opposite to the pillar member 12a constituting the joining corner portions 13a and 13b, and forms a K-shape with the other pillar member 12b.

  In the present embodiment, the pair of upper and lower horizontal members 12a and 12b constituting the wall frame are based on the lower horizontal member 12a, and the upper horizontal member 12b is a stud holder. Yes. 2 and FIGS. 3A to 3C show the corner portion mounting structure 10 and the corner portion mounting hardware at the joint corner portion 13a between one pillar member 11a and the lower horizontal member 12a. Yes.

In this embodiment, as shown in FIGS. 3A to 3C, the corner mounting hardware used in the above-described corner mounting structure 10 is a column joint surface portion 17 in which a plurality of screw fastening holes 16 are formed. And a pair of joint hardware 20 including the L-shaped cross-section portion 19 composed of the brace joint surface portion 18 and the column joint surface portion 18 are joined to one column member 12a and the brace joint surface portion 18 is projected in parallel to form a joint angle. For the pair of metal fittings 20 attached to the portion 13a, the bracing joint surface portion 18 is supported on the opposite edge of the cross member 12a and is disposed across the bracing joint surface portions 18 on both sides. A bolt fastening metal 21 and a column pulling bolt 15 extending through the horizontal members 12a and 12b and having an end fastened to a bolt fastening hole 21a of the bolt fastening metal 21.

  Here, the joining hardware 20 constituting the corner portion mounting hardware can be easily formed by, for example, cutting, bending, or punching a metal plate having a thickness of about 3.2 mm. The column joint surface portion 17 of the joint hardware 20 is formed in a vertically long rectangular shape having a width of about 30 mm and a height of about 180 mm, for example, and the brace joint surface portion 18 is perpendicular to one side of the column joint surface portion 17. Are formed in a generally rectangular shape, for example, having a width of about 105 to 130 mm and a height of about 180 mm, and a part of the periphery projecting as an arc-shaped portion 18a. In addition, a plurality of screw fastening holes 16 for driving fixing screws toward the column member 11a are formed in the column joining surface portion 17, and a wooden bracing 14 (unit muscle) is formed in the bracing joint surface portion 18. A plurality of screw fastening holes 16 for driving fixed screws toward the intersection 14a) are formed.

  It should be noted that the screw fastening hole 16 provided in the column joint surface portion 17 is embossed so that the head of the fixed screw that has been driven in is stored flat and the end of the wooden bracing 14 is well accommodated. It has been subjected. Further, the screw fastening hole 16 of the muscular joint surface 18 is provided at one position at the center of the arc-shaped portion 18a provided at the periphery of the muscular joint surface 18, and the center is the center. It is provided at seven locations at substantially equal angular intervals along the circumference. Accordingly, it is possible to join the ends of the wooden bracing 14 to the bracing joint surface 18 in a well-balanced manner in accordance with different mounting angles of the wooden bracing 14.

Further, the contact surface portion 22 provided at the end of the column joining surface portion 17 and the bracing joint surface portion 18 on the side of the horizontal member 12 a is located at the end edge portion of the column joining surface portion 17 and the end edge portion of the bracing joint surface portion 18. These are joined together to form three surfaces that are perpendicular to each other together with the column joint surface portion 17 and the bracing joint surface portion 18. By providing the contact surface portion 22 on the metal joint 20, the L-shaped cross-section portion 19 formed by the column joint surface portion 17 and the bracing joint surface portion 18 can be strongly reinforced, and the contact surface portion 22 can be horizontally disposed. By making it contact | abut to the base material 12a, the load from the joining hardware 20 can be supported by the horizontal material 12a in the stable state.

  The bolt fastener 21 can be easily formed by, for example, subjecting a metal plate having a thickness of about 6.0 mm to cutting, bending, drilling, and the like. The bolt fastener 21 includes a flat fastening portion 21b having a substantially rectangular shape in which a bolt fastening hole 21a is formed at a central portion, and a long side portion of the fastening portion 21b perpendicular to the fastening portion 21b. A pair of first locking legs 21c that are bent and a pair of second locking legs 21d that are bent vertically from the short side portion of the fastening part 21b to the fastening part 21b. The cross-sectional shape along the plane parallel to the long side portion and the cross-sectional shape along the plane parallel to the short side portion are both formed into a U-shaped cross-sectional shape.

  The bolt fastener 21 is attached to the joint corner 13a with a pair of joint hardware 20 joining and fixing the column joint surface portion 18 to one column member 12a, and projecting the bracing joint surface portion 18 in parallel. Then, the pair of first locking legs 21c are inserted between the pair of bracing joint surfaces 18 on the opposite side of the horizontal member 12a, and the pair of second locking legs. In a state in which these are clamped and locked so as to be sandwiched from both sides by 21d, by placing the back surface of the fastening portion 21b on the upper end surface of the edge portion, one pillar material 11a and the wooden bracing 14 (unit It is attached so as to straddle the bracing joint surface portions 18 on both sides at the intermediate portion with the portion to which the bracing 14a) is joined.

  The column pulling bolt 15 whose end is fastened to the bolt fastening hole 21a of the bolt fastening hardware 21 is an anchor bolt used in a state where one end is embedded and fixed in a concrete foundation, or a floor between upper and lower floors. Various bolt members known as pulling bolts such as double screw bolts having male screw portions at both ends that are used in a state of penetrating the head portion and the ceiling portion can be used. The column pulling bolt 15 is disposed through the horizontal member 12 a, and an end thereof is inserted into the bolt fastening hole 21 a, and the bolt fastening metal 21 is tightened using the washer 23 and the nut member 24. It is fastened to the hole 21a. With this fastening force, one pillar 12a is moved to the horizontal members 12a and 12b via a pair of joint hardware 20 and bolt fastening 21 fixed to the one pillar 12a using a fixing screw. Will be attracted.

In this embodiment, the end portion of the wooden bracing 14 (unit bracing 14a, 14b) joined to the bracing joint surface portion 18 of the joint hardware 20 penetrates a portion where the column pulling bolt 15 is disposed. , A bolt insertion hole (not shown) is formed in advance, and the column pulling bolt 15 is inserted into the bolt insertion hole 15 by inserting the column pulling bolt 15 into the wooden bracing 14 (unit bracing 14a, 14b) can be arranged so as to cross the end.

  In order to form the corner mounting structure 10 of the present embodiment using the above-described corner mounting hardware, as shown in FIGS. 1 and 2, the joint angle between one column member 11a and the horizontal members 12a and 12b. The wooden bracing is performed by inserting the pair of fittings 20 attached to the portions 13a and 13b between the bracing joint surface portions 18 arranged in parallel at an interval corresponding to the thickness of the wooden bracing 14. 14 (unit braces 14a, 14b) are disposed. In addition, by fixing the fixed screws 25 from the outside to the ends of the wooden bracings 14 into the screw fastening holes 16 of the bracing joint surface portions 18 arranged in close contact with both sides of the end portions, The end is fixed to the joint hardware 20.

  After that, a bolt insertion hole (not shown) in which the end portion of the column pulling bolt 15 extending through the horizontal members 12a and 12b is formed in the contact surface portion 22 of the metal fitting 20 or a wooden bar is formed. Bolt fasteners 21 attached to the edges of the brace joint surface portion 18 of the joint fitting 20 through bolt insertion holes (not shown) formed at the ends of the intersection 14 (unit reinforcement 14a, 14b). It protrudes from the fastening part 21b. Further, the column pulling bolt 15 is fastened by screwing the nut member 24 into the male threaded portion of the end of the column pulling bolt 15 that has been protruded and fastening the end to the bolt fastening hole 21a. The corner portion mounting structure 10 is formed in a state where the central axis X of the bolt 15 and the central axis C of the joined wooden bracing 14 (unit bracings 14a and 14b) are intersected on the same plane. Become.

  Here, the unit bracings 14a and 14b constituting the wooden bracing 14 are made of a wooden member having a rectangular cross-sectional shape of, for example, 105 mm × 38 mm, and each end thereof is connected to one column member 12a as described above. It is attached to the joining corners 13a, 13b of the pair of upper and lower horizontal members 12a, 12b, and the other end is attached to the middle part of the other pillar member 12b opposite to the one pillar member 12a, and the middle part fitting 26 The other pillar material 12b and the pair of unit reinforcements 14a and 14b form a K-shape.

In the present embodiment, as shown in FIGS. 4A and 4B, the intermediate joint metal piece 26 is cut, bent, or perforated into a metal plate having a thickness of about 3.2 mm, for example. Etc., and has an L-shaped cross-sectional shape composed of a column joining surface portion 28 provided with a plurality of screw fastening holes 27 and a bracing joint surface portion 29. The intermediate joint metal part 26 is driven by a fixed screw into the screw fastening hole 27 at the intermediate part of the other pillar member 12b, and joins the pillar joint face part 28 to the other pillar member 11b, thereby providing a bracing joint face part 29. It is attached in a state of protruding inward . Further, the other end portions of the unit bracings 14a and 14b are fixed to the bracing joint surface portion 29 of the intermediate joint fitting 26 by driving a fixing screw from the screw fastening hole 27 toward the other end portion. become.

  The wooden bracing 14 is composed of a pair of unit bracings 14a and 14b, and is a bracing that forms a K-shape with the other column member 12b. As compared with the above, the wall strength can be further improved.

  In this embodiment, as shown in FIGS. 1 and 2, a floor base plywood 30 is laid on a base as a lower horizontal member 12 a at the lower joint corner 13 a of the wall frame. The joining hardware 20 is attached to the joining corner portion 13a in a state where the abutting surface portion 22 is in contact with the horizontal member 12a with the floor base plywood 30 interposed therebetween. Moreover, in this embodiment, the inner pillar 31 is provided in the center part of the inner side of the wall frame body by the left-right paired pillar material 11a, 11b and the upper-lower pair horizontal member 12a, 12b.

  And according to the corner | angular part attachment structure 10 and corner | angular part attachment hardware of this embodiment which have the above-mentioned structure, while the structure of a hardware is simple and processing is easy, it is the wooden bracing 14 (unit bracing 14a) to be joined. , 14b) and the central axis X of the pulling bolt 15 are arranged so as to intersect on the same plane, and a stable joined state can be obtained.

  That is, according to the present embodiment, the joining hardware 20, the bolt fastening hardware 21, and the column pulling bolt 15 constituting the corner mounting hardware are subjected to cutting, bending, drilling, and the like on the metal plate. Or the end of the wooden bracing 14 is sandwiched between the brace joint surface portions 18 of the pair of joint hardware 20 and can be easily formed using a known column pulling bolt. The end portions of the column pulling bolts 15 are fastened to bolt fastening holes 21a of bolt fastening hardware 21 disposed across the bracing joint surface portions 18 on both sides. Therefore, it becomes possible to make the central axis C of the wooden bracing 14 and the central axis X of the column pulling bolt 15 intersect on the same plane, thereby stabilizing the wooden bracing 14 and the column pulling. It is possible to obtain the joined state of the bolt 15 To become.

  The present invention is not limited to the above-described embodiment, and various modifications can be made. For example, the wooden bracing is not necessarily made of a pair of unit bracings, and may be wooden bracing attached in a hanging shape or a hanging shape. Further, it is not always necessary to provide the contact surface portion on the metal joint, and various other shapes can be adopted as the metal joint and the bolt fastening metal.

It is a front view which shows the corner | angular part attachment structure of the wooden bracing which concerns on preferable one Embodiment of this invention. It is the A section expansion perspective view of FIG. The structure of the corner | angular part attachment hardware used in the corner | angular part attachment structure of the wooden bracing which concerns on preferable one Embodiment of this invention is demonstrated, (a) is a front view, (b) Right view, (c) is a top view. is there. The structure of the intermediate | middle part joining metal fitting used in the corner | angular part attachment structure of the wooden bracing which concerns on preferable one Embodiment of this invention is demonstrated, (a) is a front view, (b) It is a left view. It is a perspective view explaining the structure of the corner | angular part attachment structure of the conventional wooden bracing.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Corner installation structure 11a, 11b of wooden bracing Column material 12a, 12b Horizontal member 13a, 13b Joint corner 14 Wooden bracing 14a, 14b Unit bracing 15 Column pulling bolt 16 Screw fastening hole 17 Column joint surface part 18 Bracing joint surface 19 L-shaped cross section 20 Joint metal 21 Bolt fastening metal 21a Bolt fastening hole 22 Abutting surface 26 Middle joint metal C Central axis of wooden bracing X Center axis of column pulling bolt

Claims (4)

Join the ends of the wooden bracing installed inside the wall frame by a pair of left and right column members and a pair of upper and lower horizontal members to the corners of the column members and the horizontal member, It is a corner fitting structure of wooden bracing that tightens the closing bolt,
A pair of metal fittings including an L-shaped cross-sectional portion composed of a column joint surface portion and a bracing joint surface portion in which a plurality of screw fastening holes are formed joins the column joint surface portion to the pillar material, thereby joining the braces. It is attached to the joint corner with the joint surface protruding in parallel,
The end of the wooden bracing is attached and attached to the bracing joint surfaces on both sides in a state of being sandwiched between a pair of the bracing joint surfaces,
And in the part between the said wooden bracing and the said column material, it is made to support on the edge part on the opposite side to the said horizontal member of the said bracing joint surface part, and the bolt fastening metal object is the said bracing joint surface part of both sides It is arranged across
At the end of the wooden brace to be joined to the bracing joint surface portion of the joint metal, a bolt insertion hole is formed through the portion where the column pulling bolt is disposed,
An end of the column pulling bolt extending through the horizontal member is inserted into the bolt insertion hole formed at the end of the wooden bracing and protrudes from the fastening portion of the bolt fastening metal is allowed, the corner mounting structure of wooden muscle exchange for fastening the bolt fastening hole of the bolt tightening Chakkin thereof.   The joint hardware includes a contact surface portion that is bent perpendicularly to the column joint surface portion and the bracing joint surface portion at an end portion on the horizontal member side, and the corresponding contact surface portion is provided on the horizontal member. The corner attachment structure for wooden bracing according to claim 1, wherein the corner attachment structure is attached to the joint corner in a contact state.   The wooden bracing is composed of a pair of unit bracings, and the other end of the wooden bracing is joined to an intermediate portion of the other pillar facing the pillar constituting the joining corner to which the end is joined. The corner attachment structure for wooden braces according to claim 1 or 2, wherein the braces form a K-shape together with the other pillar material. A corner mounting hardware used in the corner mounting structure of wooden muscle exchange according to any one of claims 1 to 3,
A pair of metal fittings including an L-shaped cross-sectional portion composed of a column joint surface portion and a bracing joint surface portion in which a plurality of screw fastening holes are formed, and joining the column joint surface portion to the column member and the bracing joint surface portion Are supported at the edge of the bracing joint surface portion on the opposite side to the horizontal member, so that the bracing on both sides is supported. A bolt fastening metal member disposed across the joint surface part, and a column pulling bolt extending through the horizontal member and having an end fastened to a bolt fastening hole of the bolt fastening metal part Corner mounting hardware consisting of

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