IP Library Granted Patent US 12680298
Granted Patent B2
US 12680298 · App. 18/271,784 · Granted Jul 14, 2026

Load-bearing panel and building frame structure

Inventors: Daiki Fukumoto (Osaka, JP); Kazumi Hijikata (Osaka, JP); Ayana Hisazumi (Tokyo, JP); Keiichi Sato (Tokyo, JP); Kazunori Fujihashi (Tokyo, JP)
Assignees: SEKISUI HOUSE, LTD.; NIPPON STEEL CORPORATION
E04B2/707
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 12680298
App. No.
18/271,784
Granted
Jul 14, 2026
Kind
B2
Abstract

A load-bearing panel according to one or more embodiments may include: a rectangular-shaped base frame formed by joining a pair of horizontal base materials to a pair of vertical base materials; and a composite surface material made of wooden plywood and a metal plate stacked on each other. Four side edges of the composite surface material are attached to a base frame by driving nails. The spacing between the nails in a center part of each side edge in the length direction is smaller than the spacing between the nails in both end parts of the side edge.

Claims (33)

1 . A load-bearing panel comprising:

a rectangular-shaped base frame formed by joining a pair of horizontal base materials arranged in parallel with each other so as to have a certain distance to a pair of vertical base materials arranged in parallel with each other so as to have a certain distance; and

a rectangular-shaped composite surface material made of wooden plywood and a metal plate stacked on each other, the composite surface material being placed on the base frame such that four side edges of the composite surface material extend along and are overlapped with entire lengths of four base materials comprising the pair of horizontal base materials and the pair of vertical base materials, respectively, and are attached to the respective base materials of the base frame by driving nails, wherein

spacing between the nails in a center part of each of the four side edges in a length direction of the side edge of the composite surface material is smaller than spacing between the nails in both end parts of the side edge in the length direction.

2 . The load-bearing panel according to claim 1 , wherein

the composite surface material is attached to the base frame such that the metal plate is interposed between the base frame and the wooden plywood.

3 . The load-bearing panel according to claim 1 , wherein

the center part having the smaller spacing between the nails is a part having a length in a range of 40 to 60% of a length of each of the four side edges.

4 . The load-bearing panel according to claim 1 , wherein

in both end parts of each of the four side edges in the length direction of the composite surface material, the nails are arranged in a linear manner at regular intervals along a material length direction of the pair of vertical base materials or the pair of horizontal base materials, and

in the center part of each of the four side edges in the length direction, the nails are arranged in a zig-zag manner sandwiching an extension line of the linear arrangement.

5 . A building frame structure comprising the load-bearing panel according to claim 1 , the load-bearing panel being attached to an inside of an opening surface of a structural plane surrounded by: a pair of horizontal members arranged in parallel with each other so as to have a certain distance in a vertical direction; and a pair of upright members arranged in parallel with each other so as to have a certain distance in a horizontal direction, wherein

the pair of horizontal base materials and the pair of vertical base materials of the load-bearing panel are respectively attached to the pair of horizontal members and the pair of upright members with fixing tools.

6 . A building frame structure comprising the load-bearing panel according to claim 1 , the load-bearing panel being attached to an inside of an opening surface of a structural plane surrounded by: a pair of horizontal members arranged in parallel with each other so as to have a certain distance in a horizontal direction; and a pair of flat laying members arranged in a direction orthogonally intersecting the pair of horizontal members so as to have a certain distance in the horizontal direction, wherein

the pair of horizontal base materials and the pair of vertical base materials of the load-bearing panel are respectively attached to the pair of horizontal members and the pair of flat laying members with fixing tools.

7 . The load-bearing panel according to claim 1 , wherein

the spacing between the nails in the center part of each of the four side edges in the length direction of the side edge of the composite surface material is 0.5 times the spacing between the nails in both end parts of the side edge in the length direction.

8 . The load-bearing panel according to claim 1 , further comprising

vertical middle rail material provided between and extending parallel to the pair of vertical base materials, wherein

upper and lower ends of the vertical middle rail material are connected the pair of horizontal base materials, respectively,

the composite surface material is overlapped with an entire length of the vertical middle rail material and is attached to the vertical middle rail material by nails,

spacing between the nails in vertical middle rail material in the length direction of the vertical middle rail material is greater than the spacing between the nails in both end parts of each of the four side edge in the length direction of the side edge.

9 . A building frame structure comprising a rectangular-shaped composite surface material made of wooden plywood and a metal plate stacked on each other, the composite surface material being placed on a front surface of a structural plane surrounded by: a pair of horizontal members arranged in parallel with each other so as to have a certain distance in a vertical direction; and a pair of upright members arranged in parallel with each other so as to have a certain distance in a horizontal direction, such that four side edges of the composite surface material extend along and are overlapped with entire lengths of the four members comprising the pair of horizontal members and the pair of upright members, respectively, and are attached to the respective members of the structural plane by driving nails, wherein

spacing between the nails in a center part of each of the four side edges in a length direction of the side edge of the composite surface material is smaller than spacing between the nails in both end parts of the side edge in the length direction.

10 . The building frame structure according to claim 9 , wherein

the composite surface material is attached to the structural plane such that the metal plate is interposed between the structural plane and the wooden plywood.

11 . The building frame structure according to claim 9 , wherein

the center part having the smaller spacing between the nails is a part having a length in a range of 40 to 60% of a length of each of the four side edges.

12 . The building frame structure according to claim 9 , wherein

in both end parts of each of the four side edges in the length direction of the composite surface material, the nails are arranged in a linear manner at regular intervals along a material length direction of a material surrounding the structural plane, and

in the center part of each of the four side edges in the length direction, the nails are arranged in a zig-zag manner sandwiching an extension line of the linear arrangement.

13 . A building frame structure comprising a rectangular-shaped composite surface material made of wooden plywood and a metal plate stacked on each other, the composite surface material being placed on an upper surface of a structural plane surrounded by: a pair of horizontal members arranged in parallel with each other so as to have a certain distance in a horizontal direction; and a pair of flat laying members arranged in a direction orthogonally intersecting the pair of horizontal members so as to have a certain distance in the horizontal direction, such that four side edges of the composite surface material extend along and are overlapped with entire lengths of the four members comprising the two pairs of horizontal members, respectively, and are attached to the respective members of the structural plane by driving nails, wherein

spacing between the nails in a center part of each of the four side edges in a length direction of the side edge of the composite surface material is smaller than spacing between the nails in both end parts of the side edge in the length direction.