JP2023114290A - Joint metal and roof structure using the same - Google Patents

Abstract

To provide a joint metal capable of improving sheer performance of a joint part and a roof structure using the same.SOLUTION: A joint metal for jointing a horizontal member and a rafter member of a roof and comprises: a horizontal member joint part 11 having first and second horizontal member joint walls 111, 112 disposed to face each other and a horizontal member wall 113 connecting upper ends of the first and second horizontal member joint walls 111, 112; and a rafter member joint part 12 having first and second rafter member joint walls 121, 122 disposed to face each other and a rafter member receiving wall 123 connecting lower ends of the first and second rafter member joint walls 121, 122, and provided integrally with the horizontal member joint part 11. At least one part of the horizontal member wall 113 and the rafter member receiving wall 123 extend integrally on the same plane.SELECTED DRAWING: Figure 1

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to joint hardware for joining horizontal members of a roof and rafter members, and a roof structure using the same.

As this type of metal joint that has been conventionally used, for example, the structure shown in Patent Document 1 below can be cited. That is, in the conventional structure, the horizontal members of the roof and the rafter members are joined by L-shaped metal fittings. Each piece of L-shaped hardware is joined to the sides of the cross member and the rafter member, respectively.

JP-A-5-44250

In the conventional structure as described above, each piece of the L-shaped hardware is only joined to the side surface of the horizontal member and the rafter member, respectively, so when subjected to vibrations such as earthquakes, the angle of the bent portion of the hardware is particularly reduced. Poor directional angle retention and room for improvement in joint shear performance.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and one of its purposes is to provide a joint metal fitting capable of improving the shear performance of joint portions and a roof structure using the same. .

In one embodiment, a joint metal fitting according to the present invention is a joint metal fitting for joining a horizontal member of a roof and a rafter member, wherein first and second horizontal member joints are arranged to face each other. A horizontal member joint having a horizontal member cover wall connecting between upper ends of the wall and the first and second horizontal member joint walls; and first and second rafter member joint walls arranged to face each other. , and a rafter member receiving wall connecting between the lower ends of the first and second rafter member joint walls, and a rafter member joint provided integrally with the horizontal member joint, A horizontal member is inserted into the first groove formed by the joint wall of the horizontal member and the covering wall of the horizontal member, and the first groove is inserted into the side surface of the horizontal member while the upper surface of the horizontal member is covered with the covering wall of the horizontal member. and the second horizontal member joint wall are joined, and the rafter member is inserted into the second groove formed by the first and second rafter member joint walls and the rafter member receiving wall, and the lower surface of the rafter member is The first and second rafter joining walls are adapted to be joined to the side surfaces of the rafter members while being received by the receiving wall, and at least a portion of the transverse member covering wall and the rafter member receiving wall are coplanar. integrally extended above.

A roof structure according to the present invention, in one embodiment, comprises the joint hardware described above, and transverse members and rafter members joined by the joint hardware.

According to an embodiment of the joint metal of the present invention and the roof structure using the same, since at least a part of the horizontal member cover wall and the rafter member receiving wall are integrally extended on the same plane, When subjected to vibrations such as the horizontal member cover wall and the in-plane rigidity and strength of the rafter member receiving wall, the vibration can be resisted, and the angle between the joint members can be more reliably maintained, It can improve the shear performance of the part.

1 is a perspective view showing a metal joint according to Embodiment 1 of the present invention; FIG. FIG. 2 is a side view showing a roof structure including the joint hardware of FIG. 1; FIG. 3 is a plan view showing the roof structure of FIG. 2; Figure 4 is a perspective view of a roof panel unit including the rafter member of Figure 3; FIG. 5 is a perspective view showing a joint metal fitting according to Embodiment 2 of the present invention; FIG. 6 is a side view showing a roof structure including the joint hardware of FIG. 5; FIG. 7 is a plan view showing the roof structure of FIG. 6; FIG. 8 is a perspective view showing a joint metal fitting according to Embodiment 3 of the present invention; FIG. 11 is a perspective view showing a joint metal fitting according to Embodiment 4 of the present invention; FIG. 10 is a side view showing a roof structure including the joint hardware of FIG. 9; FIG. 11 is a plan view showing the roof structure of FIG. 10; FIG. 11 is a perspective view showing a metal joint according to Embodiment 5 of the present invention; FIG. 13 is a side view showing a roof structure including the joint hardware of FIG. 12; FIG. 14 is a plan view showing the roof structure of FIG. 13; FIG. 11 is a perspective view showing a joint metal fitting according to Embodiment 6 of the present invention; FIG. 16 is a side view showing a roof structure including the joint hardware of FIG. 15; FIG. 17 is a plan view showing the roof structure of FIG. 16; FIG. 12 is a perspective view showing a metal joint according to Embodiment 7 of the present invention; FIG. 19 is a side view showing a roof structure including the joint hardware of FIG. 18; FIG. 20 is a plan view showing the roof structure of FIG. 19;

EMBODIMENT OF THE INVENTION Hereinafter, the form for implementing this invention is demonstrated with reference to drawings. The present invention is not limited to each embodiment, and can be embodied by modifying the constituent elements without departing from the scope of the invention. Moreover, various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in each embodiment. For example, some components may be deleted from all the components shown in the embodiments. Furthermore, components of different embodiments may be combined as appropriate.

Embodiment 1.
FIG. 1 is a perspective view showing a metal joint 1 according to Embodiment 1 of the present invention. A joint metal 1 shown in FIG. 1 is a member for joining a horizontal member of a roof and a rafter member. The horizontal beams and rafters of the roof will be described later with reference to the drawings. The metal joint 1 of the present embodiment is a molded product of one plate-shaped member. The plate member may be a metal plate such as steel. However, a part of the metal joint 1 may be composed of a separate member from the other parts as long as they are integrated as a whole by welding or the like.

Hereinafter, the configuration of each part of the metal joint 1 may be described using the terms width direction 1w, depth direction 1d, and height direction 1h. The terms back and front may be used in relation to the depth direction 1d, and the terms up and down may be used in relation to the height direction 1h. The width direction 1w, the depth direction 1d and the height direction 1h may be directions orthogonal to each other. The terms 1w in the width direction, 1d in the depth direction, and 1h in the height direction are defined for explanation based on the orientation of the joint metal 1 in FIG. not a thing These width direction 1w, depth direction 1d and height direction 1h may be more generally called the first direction, the second direction and the third direction, respectively.

As shown in FIG. 1 , the metal joint 1 of this embodiment has a horizontal member joint portion 11 and a rafter member joint portion 12 . A cross member joint 11 is a portion intended to be joined to a cross member. The rafter joint 12 is the part intended to be joined to the rafter. The rafter member joint portion 12 is provided integrally with the horizontal member joint portion 11 . By joining the horizontal member joint portion 11 to the horizontal member and joining the rafter member joint portion 12 to the rafter member, the horizontal member and the rafter member can be joined to each other via the joint hardware 1 .

<Regarding the joints of horizontal members>
The horizontal member joint portion 11 connects first and second horizontal member joint walls 111 and 112 arranged to face each other and upper ends of the first and second horizontal member joint walls 111 and 112. It has a horizontal member covered wall 113 that

The first and second horizontal member joining walls 111 and 112 are walls extending in the width direction 1w and the height direction 1h of the joint metal 1, and are separated from each other in the depth direction 1d of the joint metal 1. are placed. The first and second cross member joining walls 111, 112 may extend parallel to each other. In FIG. 1, the first horizontal member joint wall 111 is arranged on the far side in the depth direction 1d, and the second horizontal member joint wall 112 is arranged on the front side in the depth direction 1d.

The height of the second horizontal member joining wall 112 is lower than the height of the first horizontal member joining wall 111 . When the lower ends of the first and second horizontal member joining walls 111 and 112 are placed on a horizontal surface, the upper end of the second horizontal member joining wall 112 is positioned below the upper end of the first horizontal member joining wall 111. do.

The second horizontal member joining wall 112 has a pair of partial walls 112a and 112b spaced apart from each other in the width direction 1w. A notch 112c is provided between the partial walls 112a, 112b. The width of the notch 112c in the width direction 1w may match or be wider than the width of the rafter member receiving wall 123 (connecting wall 123b) described below in the same direction.

The first and second horizontal member joining walls 111 and 112 are provided with first and second bolt holes 114 and 115 spaced apart from each other in the width direction 1w. The width direction 1w is synonymous with the width direction of the first and second horizontal member joining walls 111 and 112 . These first and second bolt holes 114, 115 are adapted to allow the passage of bolts passing through the transverse members, respectively, as will be explained later with reference to the drawings.

The first bolt hole 114 includes a first opening 114 a provided in the first horizontal member joining wall 111 and a second opening 114 a provided in the second horizontal member joining wall 112 while being arranged coaxially with the first opening 114 a. 2 openings 114b. The shapes of the first and second openings 114a, 114b may be different, as shown in FIG. 1, or may be the same. Similarly, the second bolt hole 115 is arranged coaxially with a third opening 115a provided in the first horizontal member joining wall 111 and provided in the second horizontal member joining wall 112. and a fourth opening 115b. The shapes of the third and fourth openings 115a, 115b may be different, as shown in FIG. 1, or may be the same. The second opening 114b and the fourth opening 115b provided in the second horizontal member joining wall 112 can be provided in different partial walls 112a and 112b, respectively.

The distance between the center positions of the first and second bolt holes 114, 115 in the width direction 1w is set to 50% or more of the full width of the first and second horizontal member joining walls 111, 112. As shown in FIG. The full width of the first and second horizontal member joining walls 111 and 112 may be understood as the full length of a first groove 116 described later in the width direction 1w. The rafter member joint portion 12 is arranged between the first bolt hole 114 and the second bolt hole 115 in the width direction 1w.

The horizontal member covering wall 113 is a wall portion extending in the width direction 1w and the depth direction 1d of the metal joint 1 as a whole, and the upper ends of the first and second horizontal member joint walls 111 and 112 as described above. connecting between.

The horizontal member covering wall 113 of the present embodiment includes an orthogonal wall 113a extending from the upper end of the first horizontal member joining wall 111 along a plane orthogonal to the first horizontal member joining wall 111, and an orthogonal wall It has an inclined wall 113b which is provided between the tip of 113a and the upper end of the second horizontal member joining wall 112 and which extends obliquely with respect to the orthogonal wall 113a.

As described above, the upper end of the second horizontal member joining wall 112 is positioned lower than the upper end of the first horizontal member joining wall 111, and the inclined wall 113b descends toward the second horizontal member joining wall 112. It is slanted so that The inclined wall 113b has an upper end 113b1 (one end on the orthogonal wall 113a side in the depth direction 1d) and a lower end 113b2 (an end on the second horizontal member joining wall 112 side in the depth direction 1d). are doing. The inclination angle of the inclined wall 113b with respect to the orthogonal wall 113a is determined according to the inclination angle of the rafter member with respect to the horizontal. That is, a plurality of joint metal fittings 1 having different inclination angles of the inclined wall 113b may be prepared, and the joint metal fittings 1 having an inclination angle corresponding to the slope of the roof may be selected and used.

The first and second horizontal member joining walls 111 and 112 and the horizontal member covered wall 113 are arranged to have a U-shaped cross section as a whole and form a first groove 116 as a whole. The first groove 116 extends in the width direction 1w and opens downward. As will be described later with reference to the drawings, the joining hardware 1 has a horizontal member inserted into the first groove 116, and the horizontal member covered wall 113 covers the upper surface of the horizontal member. , the first and second horizontal member joining walls 111, 112 are joined to each other.

<Regarding rafter member joints>
The rafter member joint portion 12 includes first and second rafter member joint walls 121 and 122 arranged to face each other, and a rafter member that connects the lower ends of the first and second rafter member joint walls 121 and 122. It has a receiving wall 123 .

The first and second rafter member joining walls 121 and 122 are walls extending along a plane intersecting the extending planes of the first and second horizontal member joining walls 111 and 112 . Preferably, the first and second rafter member joint walls 121 and 122 extend along a plane orthogonal to the extending planes of the first and second horizontal member joint walls 111 and 112 . The first and second rafter member joining walls 121 and 122 of the present embodiment extend in the depth direction 1d and the height direction 1h of the joining metal fitting 1, respectively, and are separated from each other in the width direction 1w of the joining metal fitting 1. are placed. The first and second rafter joining walls 121, 122 may extend parallel to each other.

Third bolt holes 124 are provided in the first and second rafter member joint walls 121 and 122 . The third bolt holes 124 are adapted to allow the passage of bolts through the rafter members, as will be explained later with reference to the drawings. The third bolt hole 124 includes a fifth opening 124a provided in the first rafter member joining wall 121 and a sixth opening provided in the second rafter member joining wall 122 while being arranged coaxially with the fifth opening 124a. 124b.

The rafter member receiving wall 123 is a wall portion extending in the width direction 1w and the depth direction 1d of the metal joint 1 as a whole, and extends between the lower ends of the first and second rafter member joint walls 121 and 122 as described above. Connected.

The rafter member receiving wall 123 extends integrally on the same plane as at least a portion of the horizontal member covering wall 113 . The rafter member receiving wall 123 of the present embodiment extends integrally with the inclined wall 113b of the horizontal member cover wall 113 on the same plane.

The rafter member joint portion 12 of the present embodiment is provided outside the horizontal member joint portion 11 in the depth direction 1d. The depth direction 1d is synonymous with the separation direction of the first and second horizontal member joint walls 111 and 112 . The rafter member receiving wall 123 extends from the horizontal member covered wall 113 in one direction in the depth direction 1d. More specifically, the rafter member receiving wall 123 extends in the depth direction from one end 113b2 of the lower side of the inclined wall 113b so as to form the same plane as the inclined wall 113b at the central portion of the horizontal member covering wall 113 in the width direction 1w. It is extended to the front side related to 1d. The rafter member receiving wall 123 extends obliquely with respect to the orthogonal wall 113a in the same manner as the inclined wall 113b. The rafter member receiving wall 123 is slanted downward as it separates from the second horizontal member joining wall 112 .

The rafter member receiving wall 123 connects the rafter member receiving wall body 123a that connects the lower ends of the first and second rafter member joining walls 121 and 122, and the rafter member receiving wall body 123a and the horizontal member cover wall 113. connection wall 123b. The length of the connection wall 123b in the depth direction 1d is set to be equal to or greater than the height of the second rafter member joining wall 122 arranged on the front side in the depth direction 1d. In other words, the partial walls 112a and 112b and the first and second rafter member joining walls 121 and 122 are bent back, and the partial walls 112a and 112b, the rafter member receiving wall 123 and the first and second rafter member joining walls 121 and 122 are bent back. are positioned on the same plane, the first and second rafter member joining walls 121, 122 may be positioned ahead of the tips of the partial walls 112a, 112b.

The first and second rafter joining walls 121 and 122 and the rafter receiving wall 123 are arranged to have a U-shaped cross section as a whole and form a second groove 125 as a whole. The second groove 125 extends in a direction intersecting the extending direction of the first groove 116 when the metal joint 1 is viewed along the height direction 1h. Preferably, the second grooves 125 extend in a direction orthogonal to the extending direction of the first grooves 116 when the metal joint 1 is viewed along the height direction 1h. Also, the second groove 125 opens in the opposite direction to the first groove 116 with respect to the height direction 1h. The second groove 125 of the present embodiment extends in the depth direction 1d and opens upward. As will be described later with reference to the drawings, the joint metal 1 is attached to the first and second sides of the rafter member in a state in which the rafter member is inserted into the second groove 125 and the lower surface of the rafter member is received by the rafter member receiving wall 123 . Second rafter joining walls 121, 122 are adapted to be joined.

Next, FIG. 2 is a side view showing a roof structure including the joint hardware 1 of FIG. 1, and FIG. 3 is a plan view showing the roof structure of FIG. As shown in FIGS. 2 and 3, the roof structure according to Embodiment 1 includes the joint hardware 1 described above, and horizontal members 2 and rafter members 3 joined by the joint hardware 1 .

A roof may form part of a wooden structure, for example a wooden house. The horizontal member 2 and the rafter member 3 are longitudinal members having a rectangular cross section as a whole. When the horizontal member 2 and the rafter member 3 are viewed along the vertical direction as shown in FIG. Preferably, the longitudinal direction 2a of the cross member 2 is perpendicular to the longitudinal direction 3a of the rafter member 3 . The horizontal members 2 and the rafter members 3 are typically wooden members, but may be metal members such as rectangular steel pipes. The horizontal member 2 may be a horizontally extending member such as an eaves girder or a purlin. The rafter member 3 is arranged above the horizontal member 2 . Although not shown in FIGS. 2 and 3, other members such as sheathing boards, waterproof sheets, and roofing materials (tiles, etc.) may be arranged above the rafter members 3 .

As particularly shown in FIG. 2, the rafter member 3 of this embodiment extends obliquely with respect to the horizontal direction. More specifically, the rafter member 3 extends obliquely such that one end in the longitudinal direction 3a is positioned higher than the other end. One end of the upper rafter member 3 can be positioned on the ridge side of the roof, and the other end of the lower rafter member 3 can be positioned on the eave side of the roof. The angle of inclination of the rafter members 3 with respect to the horizontal direction may vary from roof to roof.

The upper part of the horizontal member 2 is provided with a notch 20 into which the lower part of the rafter member 3 can be inserted. The notch 20 is a depression as if a part of the upper corner of the horizontal member 2 was chamfered according to the inclination angle of the rafter member 3 with respect to the horizontal. The notch 20 may be formed over the entire length of the horizontal member 2 . In the illustrated embodiment, the width 20w of the notch 20 in the width direction of the horizontal member 2 (the direction perpendicular to the longitudinal direction 2a of the horizontal member 2) is narrower than the full width of the horizontal member 2. As shown in FIG.

The length 20L of the notch 20 in the longitudinal direction 2a of the horizontal member 2 of this embodiment is set wider than the width 3w of the rafter member 3 in the same direction. As shown in FIG. 3, the length 20L of the notch 20 is set wider than the width 1w of the metal joint 1 in the same direction. It is preferable that the length 20L of the notch 20 is approximately the same as the width 1w of the joint 1 so that the side wall of the notch 20 can determine the position of the joint 1 . The length 20L of the notch 20 can be 103% or more and 120% or less of the width 1w of the metal joint 1 . The width 1w of the joint hardware 1 (the width of the horizontal member joint portion 11) is wider than the width 3w of the rafter member 3. As shown in FIG. The width 3w of the rafter member 3 is equal to the distance between the inner surfaces of the first and second rafter member joint walls 121 and 122. As shown in FIG.

As shown in FIG. 2, at the position where the notch 20 is provided, the upper surface 21 of the horizontal member 2 includes an orthogonal surface 21a extending orthogonally to the first side surface 221 of the horizontal member 2, and an inclined surface 21b that extends obliquely with respect to the orthogonal surface 21a. The inclined surface 21 b connects the tip of the orthogonal surface 21 a and the upper end of the second side surface 222 of the horizontal member 2 . The inclined surface 21 b constitutes the bottom surface of the notch 20 . The second side surface 222 is a surface opposite to the first side surface 221 with respect to the width direction of the horizontal member 2 . The upper end of the second side surface 222 is located below the upper end of the first side surface 221 and the orthogonal surface 21a. The inclined surface 21 b is inclined downward toward the second side surface 222 . The inclined surface 21 b may extend parallel to the lower surface 31 of the rafter member 3 . That is, the inclination angle of the inclined surface 21b with respect to the orthogonal surface 21a is set according to the inclination angle of the rafter member 3 with respect to the horizontal.

The joint hardware 1 is arranged on the horizontal member 2 so that the inclined wall 113b of the horizontal member covering wall 113 is accommodated in the notch portion 20. As shown in FIG. Moreover, the joint metal 1 is arranged so as to be interposed between the horizontal member 2 and the rafter member 3 . The joining hardware 1 joins the horizontal member 2 and the rafter member 3 . As shown in the figure, the horizontal member 2 is inserted into the first groove 116 , and the side surfaces 221 and 222 of the horizontal member 2 are attached to the side surfaces 221 and 222 while the upper surface 21 of the horizontal member 2 is covered with the horizontal member covered wall 113 . First and second horizontal member joint walls 111 and 112 are joined. Further, the rafter member 3 is inserted into the second groove 125 and the first and second rafter member joint walls are attached to the side surfaces 32 and 33 of the rafter member 3 in a state in which the lower surface 31 of the rafter member 3 is received by the rafter member receiving wall 123 . 121 and 122 are joined.

In the roof structure of this embodiment, the first and second bolts 41 and 42 passing through the horizontal member 2 are inserted into the first and second bolt holes 114 and 115 of the first and second horizontal member joining walls 111 and 112. (See FIG. 1), the first and second horizontal member joining walls 111 and 112 are joined to the side surfaces 221 and 222 of the horizontal member 2 . Similarly, the third bolts 43 penetrating the rafter member 3 are passed through the third bolt holes 124 (see FIG. 1) of the first and second rafter member joint walls 121 and 122, thereby connecting the first and second rafters. Member joining walls 121 and 122 are joined to the side surfaces 32 and 33 of the rafter member 3 . The first to third bolts 41 to 43 may be called through bolts. Nuts 41a-43a can be attached to the tips of the first through third bolts 41-43.

Preferably, at least one of the horizontal member 2 and the rafter member 3 is provided in advance with through holes through which the first to third bolts 41 to 43 are passed. In other words, the through holes are preferably formed before the first to third bolts 41 to 43 are passed through. The through holes may be formed at the construction site of the structure, but are preferably preformed at the factory. In particular, it is preferable that the rafter member 3 is provided with a through hole in advance. In this embodiment, both the horizontal member 2 and the rafter member 3 are provided with through holes in advance.

However, the method of joining the first and second horizontal member joining walls 111 and 112 to the side surfaces 221 and 222 of the horizontal member 2 and the first and second rafter member joining walls 121 and 121 to the side surfaces 32 and 33 of the rafter member 3 are The joining method of 122 is arbitrary and other fastening members such as screws or lag screw bolts may be used. When another binding member is used, the portion where the binding member is used does not have to be pre-formed with a through hole.

Next, FIG. 4 is a perspective view showing the roof panel unit 5 including the rafter member 3 of FIG. The rafter member 3 may be a single member, but the rafter member 3 of the present embodiment constitutes a part of the roof panel unit 5 unitized together with the sheathing board 50 and the roof material 51 . Roof panel unit 5 may also include other members such as tarpaulin 52 . For the sake of explanation, FIG. 4 shows a part of the structure cut away.

The rafter member 3 can be lifted together with the entire roof panel unit 5 by a crane or the like and placed above the horizontal member 2 . Before the rafter member 3 is arranged above the horizontal member 2 , the horizontal member joining portion 11 of the joint hardware 1 can be joined to the horizontal member 2 . Then, the rafter member 3 can be arranged so as to be inserted into the second groove 125 of the joint metal 1 joined to the horizontal member 2 .

In the joint metal 1 and the roof structure using it as in the present embodiment, at least a part of the horizontal member covering wall 113 and the rafter member receiving wall 123 extend integrally on the same plane. When subjected to vibration such as an earthquake, the vibration can be resisted by utilizing the in-plane rigidity and strength of at least a part of the horizontal member cover wall 113 and the rafter member receiving wall 123 . Therefore, compared with the conventional L-shaped metal fittings, the angle between the joining members can be more reliably maintained, and the shearing performance of the joining portion can be improved.

In addition, since the inclined wall 113b of the horizontal member cover wall 113 extends integrally with the rafter member receiving wall 123 on the same plane, even in a roof where the rafter member 3 is arranged inclined with respect to the horizontal, It is possible to more reliably improve the shear performance of the joint.

Further, since the horizontal member covered wall 113 further has the orthogonal wall 113a, the rigidity of the horizontal member joint portion 11 can be improved, and the shear performance of the joint portion can be improved more reliably.

Further, since the rafter member receiving wall 123 extends from the horizontal member covering wall 113, at least a portion of the horizontal member covering wall 113 and the rafter member receiving wall 123 can be provided separately. As a result, a large amount of in-plane rigidity and proof stress that can be used for vibration resistance can be secured, and the shear performance of the joint can be improved more reliably.

1, the rafter member receiving wall 123 extends from the lower end 113b2 of the inclined wall 113b, so that the rafter member receiving wall 123 extends from the upper end 113b1 of the inclined wall 113b. The rafter member receiving wall 123 can be shortened compared to the case. As a result, local deformation of the rafter member receiving wall 123 when subjected to vibration can be suppressed, and the shear performance of the joint portion can be improved more reliably.

Also, the joint walls 111 and 112 are spaced apart from each other in the width direction of the first and second horizontal member joining walls 111 and 112 so that the first and second bolts 41 and 42 passing through the horizontal member 2 are passed through. The first and second bolt holes 114 and 115 are provided in the first and second horizontal member joining walls 111 and 112, so that the first and second bolts 41 and 42 are used to secure the first and second horizontal members. The material joining walls 111 and 112 can be easily joined to the horizontal member 2 . In addition, since the first and second bolt holes 114 and 115 are spaced apart in the width direction of the first and second horizontal member joining walls 111 and 112, the horizontal member cover wall is Rotation of 113 can be suppressed, and the shear performance of the joint portion can be improved more reliably. Furthermore, it becomes possible to confirm the construction state by visual observation from below during the joining work.

Further, since the third bolt hole 124 adapted to pass the third bolt 43 penetrating the rafter member 3 is provided in the first and second rafter member joint walls 121 and 122, the third bolt 43 Thus, the first and second rafter member joining walls 121 and 122 can be easily joined to the rafter member 3 . In addition, by inserting some third bolts 43 into the rafter members 3 and utilizing the third bolts 43 as temporary fixings of the rafter members 3, the construction efficiency can be reduced by reducing the time constraint of the crane for lifting the rafter members 3. can increase Furthermore, it becomes possible to confirm the construction state by visual observation from below during the joining work.

At least one of the horizontal member 2 and the rafter member 3 is pre-formed with through holes through which the first to third bolts 41 to 43 are passed. A highly accurate structure that can improve accuracy can be realized. In particular, since the rafter member 3 is pre-formed with a through-hole through which the third bolt 43 is passed, it is possible to reduce the time constraint of the crane for lifting the rafter member 3 and improve construction efficiency. Furthermore, it becomes possible to confirm the construction state by visual observation from below during the joining work.

Moreover, the rafter member 3 may constitute a part of the roof panel unit 5 unitized together with the sheathing board 50 and the roof material 51 . When the rafter member 3 constitutes a part of the roof panel unit 5, it is particularly useful to be able to confirm the construction state by visual observation from below.

Embodiment 2.
5 is a perspective view showing a joint metal 1 according to Embodiment 2 of the present invention, FIG. 6 is a side view showing a roof structure including the joint metal of FIG. 5, and FIG. 7 shows the roof structure of FIG. It is a top view. In the first embodiment, the horizontal member cover wall 113 has the orthogonal wall 113a and the inclined wall 113b. However, as shown in FIGS. 5 to 7, the orthogonal wall 113a may be omitted and the entire horizontal member covered wall 113 may be formed by the inclined wall 113b. At this time, the entire horizontal member covered wall 113 may extend integrally on the same plane as the rafter member receiving wall 123 . Further, in the first embodiment, the width 20w of the notch 20 is narrower than the full width of the horizontal member 2, and the upper surface 21 of the horizontal member 2 has the orthogonal surface 21a. The shape of the upper part can be changed as appropriate. When using the metal joint 1 of Embodiment 2, the width 20w of the notch 20 is matched with the overall width of the horizontal member 2, and the upper surface 21 of the horizontal member 2 at the position of the notch 20 is composed only of the inclined surface 21b. may be Other configurations are the same as those of the first embodiment.

In this way, the orthogonal wall 113a may be omitted, and the entire horizontal member cover wall 113 may be configured by the inclined wall 113b.

Embodiment 3.
FIG. 8 is a perspective view showing a metal joint 1 according to Embodiment 3 of the present invention. As shown in FIG. 8, a rib 126 can also be provided on at least one side of the connecting wall 123b of the rafter member receiving wall 123. As shown in FIG. In the form shown in FIG. 8, ribs 126 are provided on both sides of the connecting wall 123b. However, ribs 126 may be provided on only one side.

The rib 126 protrudes from the side portion of the connection wall 123b in a direction crossing the extension surface of the connection wall 123b. It is preferable that the rib 126 is perpendicular to the extending surface of the connecting wall 123b. In the illustrated embodiment, the rib 126 extends over the entire length of the connecting wall 123b (with respect to the depth direction 1d, the base end of the connecting wall 123b located on the inclined wall 113b side and the tip of the connecting wall 123b located on the rafter member receiving wall main body 123a side). The entire area between However, the ribs 126 may be provided only along part of the entire length of the connecting wall 123b. Moreover, instead of being continuously provided along the entire length of the connecting wall 123b, the rib 126 has a plurality of partial ribs provided spaced apart in the length direction (depth direction 1d) of the connecting wall 123b. good too. The height of the rib 126 is lower than the height of the first and second rafter member joining walls 121,122. The rib 126 can be formed by bending a protruding piece laterally protruding from the connecting wall 123b. The width of the notch 112c provided between the partial walls 112a and 112b of the second horizontal member joining wall 112 can be made wider than the width of the connecting wall 123b by the amount of the projecting piece. Other configurations are the same as those of the first and second embodiments.

By providing the rib 126 on at least one side of the connection wall 123b of the rafter member receiving wall 123 in this manner, local deformation of the rafter member receiving wall 123 when subjected to vibration can be more reliably suppressed. It is possible to further improve the shear performance of the joint.

Embodiment 4.
9 is a perspective view showing a joint metal 1 according to Embodiment 4 of the present invention, FIG. 10 is a side view showing a roof structure including the joint metal 1 of FIG. 9, and FIG. 11 is a roof structure of FIG. It is a plan view showing. In Embodiment 1, the rafter member receiving wall 123 has been described as extending from the lower end 113b2 of the inclined wall 113b. However, as shown in FIGS. 9-11, the rafter member receiving wall 123 may extend from the upper end 113b1 of the inclined wall 113b. The rafter member receiving wall 123 of the fourth embodiment extends from the upper end 113b1 of the inclined wall 113b toward the depth side in the depth direction 1d so as to be flush with the inclined wall 113b.

In particular, as shown in FIG. 9, the width of the connection wall 123b of the rafter member receiving wall 123 can be made wider than the width of the rafter member receiving wall main body 123a. The same applies when the rafter member receiving wall 123 extends from the lower end 113b2 of the inclined wall 113b as in the first to third embodiments. The width of the connecting wall 123b may be uniform along the extending direction of the connecting wall 123b, or may vary along the extending direction of the connecting wall 123b. In this embodiment, the width of the connection wall 123b is gradually widened from the tip on the side of the rafter member receiving wall main body 123a toward the base on the side of the inclined wall 113b. The width of the tip of the connection wall 123b matches the width of the rafter member receiving wall main body 123a. The width of the connection wall 123b may be changed continuously or may be changed stepwise. When the width of the connecting wall 123b is continuously changed, the side ends of the connecting wall 123b extend obliquely with respect to the extending direction of the connecting wall 123b (see FIG. 9).

The first horizontal member joining wall 111 has a pair of partial walls 111a and 111b spaced apart from each other in the width direction 1w. A notch 111c is provided between the partial walls 111a, 111b. The width of the notch 111c in the width direction 1w is wider than the width of the rafter member receiving wall 123 in the same direction. However, if the width of the connection wall 123b matches the width of the rafter receiving wall body 123a, the width of the notch 111c may match the width of the rafter receiving wall 123. The notch 112c may not be provided in the second horizontal member joining wall 112 .

The length of the connecting wall 123b of the rafter member receiving wall 123 of this embodiment is equal to the length (L1) of the orthogonal wall 113a in the depth direction 1d and the length of the first horizontal member joining wall 111 in the height direction 1h. It is set to be equal to or greater than the length (L1+L2) plus the length (L2). In other words, the orthogonal wall 113a, the partial walls 111a and 111b and the first and second rafter joining walls 121 and 122 are bent back, and the orthogonal wall 113a, the partial walls 111a and 111b, the rafter member receiving wall 123 and the first and second rafter joining walls 121 and 122 are bent back. When the rafter member joint walls 121 and 122 are positioned on the same plane, the first and second rafter member joint walls 121 and 122 may be positioned ahead of the tips of the partial walls 111a and 111b. Other configurations are the same as those of the first to third embodiments.

Thus, the rafter member receiving wall 123 may extend from the upper end 113b1 of the inclined wall 113b.

Further, the width of the connection wall 123b of the rafter member receiving wall 123 can be made wider than the width of the rafter member receiving wall body 123a. Since the width of the connecting wall 123b is wider than the width of the rafter member receiving wall main body 123a, the rigidity of the connecting wall 123b can be improved compared to the case where the width of the connecting wall 123b is the same as the width of the rafter member receiving wall main body 123a. As a result, local deformation of the rafter member receiving wall 123 when subjected to vibration can be suppressed more reliably, and the shear performance of the joint portion can be further improved.

Embodiment 5.
12 is a perspective view showing a joint metal 1 according to Embodiment 5 of the present invention, FIG. 13 is a side view showing a roof structure including the joint metal 1 of FIG. 12, and FIG. 14 is a roof structure of FIG. It is a plan view showing. As shown in FIGS. 12 to 14, rafter receiving walls 123 may extend from ends 113b1 and 113b2 on both sides of the inclined wall 113b. That is, the rafter member receiving wall 123 may extend from the horizontal member covered wall 113 in at least one of the separation directions (depth direction 1d) between the first and second rafter member joining walls 121 and 122 . Others are the same as those of the first to fourth embodiments.

Embodiment 6.
15 is a perspective view showing a joint metal 1 according to Embodiment 6 of the present invention, FIG. 16 is a side view showing a roof structure including the joint metal 1 of FIG. 15, and FIG. 17 is a roof structure of FIG. It is a plan view showing. In Embodiments 1 to 5, description has been given of modes in which the rafter members 3 to be joined are arranged at an angle with respect to the horizontal. However, depending on the roof, the rafter member 3 may extend horizontally. The joint metal 1 of Embodiment 6 shown in FIGS. 15 to 17 is adapted to join a horizontally extending rafter member 3 and a horizontal member 2 .

In the horizontal member cover wall 113 of the sixth embodiment, an orthogonal wall 113a extending along a plane orthogonal to the first horizontal member joining wall 111 is positioned between the upper end of the first horizontal member joining wall 111 and the second horizontal member joining wall 111 . It connects with the upper end of the horizontal member joining wall 112 . That is, the inclined wall 113b described in the first to fifth embodiments is omitted, and the entire horizontal member covered wall 113 is constituted by the orthogonal wall 113a. The upper end of the second horizontal member joining wall 112 is arranged at the same height as the upper end of the first horizontal member joining wall 111 .

The rafter member receiving wall 123 of Embodiment 6 extends integrally on the same plane as the orthogonal wall 113a. More specifically, the rafter member receiving wall 123 extends from one end of the orthogonal wall 113a to the near side in the depth direction 1d at the central portion of the horizontal member covering wall 113 in the width direction 1w. The rafter member receiving wall 123 extends integrally on the same plane as the entire horizontal member covering wall 113 .

As shown in FIGS. 16 and 17, the rafter member 3 is placed on top of the horizontal member 2 with the joint metal 1 interposed therebetween. The notch 20 described in Embodiment 1 is omitted. Other configurations are the same as those of the first to fifth embodiments.

Thus, the rafter member receiving wall 123 may extend integrally on the same plane as the orthogonal wall 113a.

Embodiment 7.
18 is a perspective view showing a joint metal 1 according to Embodiment 7 of the present invention, FIG. 19 is a side view showing a roof structure including the joint metal 1 of FIG. 18, and FIG. 20 is a roof structure of FIG. It is a plan view showing. In Embodiments 1 to 6, the rafter member joint portion 12 is provided outside the horizontal member joint portion 11 in the separation direction (depth direction 1d) of the first and second horizontal member joint walls 111 and 112. explained as follows. However, as shown in FIGS. 18 to 20, even if the rafter member joint portion 12 is provided inside the horizontal member joint portion 11 related to the separation direction of the first and second horizontal member joint walls 111 and 112, good.

When the rafter member joint portion 12 is provided inside the horizontal member joint portion 11 , at least part of the horizontal member covered wall 113 can also serve as the rafter member receiving wall 123 . In the illustrated embodiment, a portion of the inclined wall 113b of the horizontal member joint portion 11 also serves as the rafter member receiving wall 123. As shown in FIG. More specifically, in the central portion of the inclined wall 113b in the width direction 1w, the inclined wall 113b also serves as the rafter member receiving wall 123 in a predetermined length range from the upper one end 113b1. Hereinafter, the portion of the inclined wall 113 b that also serves as the rafter member receiving wall 123 may be simply referred to as the rafter member receiving wall 123 . In the illustrated embodiment, the length of the rafter member receiving wall 123 in the depth direction 1d is shorter than the total length of the inclined wall 113b in the depth direction 1d. However, the length of the rafter member receiving wall 123 in the depth direction 1d may be the entire length of the inclined wall 113b in the depth direction 1d.

A notch 61 communicating with the first groove 116 is provided on the side of the rafter member receiving wall 123 . In the illustrated embodiment, notches 61 are provided on both sides of the rafter member receiving wall 123, and the first and second rafter member joint walls 121 and 122 are formed by cutting and raising the plate material at the notch 61 portions. ing. However, the notch 61 may be formed only on one side of the rafter member receiving wall 123 . In other words, the rafter member receiving wall 123 may be arranged to be biased to one side in the width direction 1w.

The horizontal member covered wall 113 can include a lip portion 62 extending from the upper end of at least one of the first and second horizontal member joining walls 111 and 112 toward the notch 61 . The horizontal member covering wall 113 of the present embodiment includes a first lip portion 621 (perpendicular wall 113 a ) extending from the upper end of the first horizontal member joining wall 111 and the upper end of the second horizontal member joining wall 112 . and a second lip portion 622 extending from. It may be understood that the rafter member receiving wall 123 connects between the tip of the first lip portion 621 and the tip of the second lip portion 622 .

However, at least one of the first and second lip portions 621 and 622 is omitted, and the rafter member receiving wall 123 directly extends from the upper end of at least one of the first and second horizontal member joining walls 111 and 112. may be Other configurations are the same as those of the first to sixth embodiments.

Thus, the rafter member joint portion 12 may be provided inside the horizontal member joint portion 11 , and at least a portion of the horizontal member covering wall 113 may also serve as the rafter member receiving wall 123 .

In addition, since the horizontal member covered wall 113 includes the lip portion 62, the rigidity of the horizontal member joint portion 11 can be improved compared to a configuration in which the lip portion 62 is omitted. A configuration including the lip portion 62 is particularly useful in a configuration in which the horizontal member cover wall 113 also serves as the rafter member receiving wall 123 .

Reference Signs List 1: Joint hardware 11: Horizontal member joint portion 111: First horizontal member joint wall 112: Second horizontal member joint wall 113: Horizontal member cover wall 113a: Orthogonal wall 113b: Inclined wall 114: First bolt hole 115: Second bolt hole 116: First groove 12: Rafter member joint portion 121: First rafter member joint wall 122: Second rafter member joint wall 123: Rafter member receiving wall 123a: Rafter member receiving wall body 123b: Connection wall 124 : Third bolt hole 125 : Second groove 126 : Rib 2 : Horizontal member 3 : Rafter member 5 : Roof panel unit 50 : Roofing plate 51 : Roof member 41 : First bolt (bolt)
42: Second bolt (bolt)
43: Third bolt (bolt)
61: Notch 62: Lip portion

Claims (14)

A joining hardware for joining a roof horizontal member and a rafter member,
a horizontal member joint portion having first and second horizontal member joint walls arranged to face each other and a horizontal member covered wall connecting upper ends of the first and second horizontal member joint walls; ,
First and second rafter member joint walls arranged to face each other, and a rafter member receiving wall connecting between lower ends of the first and second rafter member joint walls; an integral rafter joint and
The horizontal member is inserted into a first groove formed by the first and second horizontal member joining walls and the horizontal member covering wall, and the horizontal member covering wall is placed on the upper surface of the horizontal member. The first and second horizontal member joining walls are joined to the side surfaces of the horizontal member in the state of being bent, and a second groove is formed by the first and second rafter member joining walls and the rafter member receiving wall. The rafter member is inserted into the rafter member, and the first and second rafter member joining walls are joined to the side surfaces of the rafter member while the lower surface of the rafter member is received by the rafter member receiving wall. cage,
at least a portion of the horizontal member cover wall and the rafter member receiving wall extend integrally on the same plane,
joining hardware. The horizontal member covering wall has an inclined wall extending at an angle to a plane orthogonal to the first and second horizontal member joining walls,
wherein the slanted wall extends integrally with the rafter member receiving wall on the same plane;
The joining hardware according to claim 1. The horizontal member covering wall further has an orthogonal wall extending from the upper end of the first horizontal member joining wall along a plane orthogonal to the first horizontal member joining wall,
The inclined wall is provided between the tip of the orthogonal wall and the upper end of the second horizontal member joining wall,
The joining hardware according to claim 2. The rafter member joint portion is provided outside at least one of the horizontal member joint portions in the separation direction of the first and second horizontal member joint walls,
The rafter member receiving wall extends from the horizontal member covering wall in at least one direction in the separating direction,
The metal joint according to any one of claims 1 to 3. The rafter member receiving wall extends from one lower end of the inclined wall,
5. The metal joint according to claim 4, which cites claim 2 or 3. The rafter member receiving wall includes a rafter member receiving wall main body connecting the lower ends of the first and second rafter member connecting walls, and a connecting wall connecting the rafter member receiving wall main body and the horizontal member cover wall. and
At least one side of the connecting wall is provided with a rib,
The metal joint according to claim 4 or 5. The rafter member receiving wall includes a rafter member receiving wall main body connecting the lower ends of the first and second rafter member connecting walls, and a connecting wall connecting the rafter member receiving wall main body and the horizontal member cover wall. and
The width of the connecting wall is wider than the width of the rafter member receiving wall main body,
The metal joint according to claim 4 or 5. The rafter member joint portion is provided inside the horizontal member joint portion in the separation direction of the first and second horizontal member joint walls,
at least part of the horizontal member cover wall also serves as the rafter member receiving wall,
The metal joint according to any one of claims 1 to 3. A notch communicating with the first groove is provided on a side of the rafter member receiving wall,
The horizontal member covering wall includes a lip portion extending from an upper end of at least one of the first and second horizontal member joining walls toward the notch,
The joining hardware according to claim 8. The first and second horizontal member joint walls are spaced apart from each other in the width direction of the first and second horizontal member joint walls so that bolts passing through the horizontal member are passed through the respective joint walls. provided with first and second bolt holes adapted to
Joining hardware according to any one of claims 1 to 9. The first and second rafter member joining walls are provided with third bolt holes adapted to pass bolts passing through the rafter members,
Joining hardware according to any one of claims 1 to 10. The metal joint according to any one of claims 1 to 11;
a horizontal member and a rafter member joined by the joint hardware,
roof structure. At least one of the horizontal member and the rafter member is provided in advance with a through hole through which a bolt is passed,
13. Roof construction according to claim 12 with reference to claim 10 or 11. The rafter member constitutes a part of a unitized roof panel unit together with the sheathing board and the roof material,
Roof structure according to claim 12 or 13.