Building units and buildings

The building unit design addresses interference issues by incorporating through-portions and notched ends in ceiling girders, ensuring space for tools and fastening members, enhancing assembly efficiency.

JP2026092610APending Publication Date: 2026-06-05TOYOTA HOUSING CORP

Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
TOYOTA HOUSING CORP
Filing Date
2024-11-26
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Existing building units face interference issues between tools and ceiling purlins and reinforcing beams during assembly due to their arrangement, hindering efficient attachment of fastening members.

Method used

The building unit design includes through-portions in the ceiling girders and notched ends of ceiling joists, allowing space for tools and fastening members, with specific distances set to accommodate tools like a ratchet-type torque wrench, preventing interference during assembly.

Benefits of technology

This design ensures sufficient space for tools and fastening members, reducing interference and facilitating efficient assembly by allowing unobstructed access and attachment of fastening components.

✦ Generated by Eureka AI based on patent content.

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  • Figure 2026092610000001_ABST
    Figure 2026092610000001_ABST
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Abstract

The objective is to obtain a building unit and a building that can secure space for tools to be placed in the locations where ceiling beams are positioned. [Solution] Ceiling joists 28 are stretched between the main ceiling beams 24 that constitute part of the building unit 12's frame, and the ends 28A of these ceiling joists 28 are connected to connecting plates 57 provided on the main ceiling beams 24. Furthermore, a through-hole 60 is provided around the connecting plate 57 in the web portion 24A of the main ceiling beams 24, and the end 28A of the ceiling joist 28 is notched on the opposite side of the connecting plate 57.
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Description

Technical Field

[0001] The present invention relates to a building unit and a building.

Background Art

[0002] Patent Document 1 below discloses an invention related to a unit building. In this unit building, a reinforcing beam is attached between the ceiling girders of adjacent building units.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in the prior art described in Patent Document 1 above, depending on the arrangement of the building unit and the reinforcing beam (component), it is conceivable that the tool for attaching the ceiling purlin and the attachment member of the reinforcing beam of the building unit may interfere with each other.

[0005] In consideration of the above facts, an object of the present invention is to obtain a building unit and a building that can secure a space for a tool to enter where the ceiling purlin is arranged.

Means for Solving the Problems

[0006] A building unit according to a first aspect includes a ceiling purlin that is spanned between ceiling girders constituting a part of a frame and has an end connected to a connection plate provided on the ceiling girder, a through - portion is provided in a peripheral portion of the connection plate in a web portion of the ceiling girder, and the end is cut away on the opposite side of the connection plate.

[0007] In the building unit according to the first embodiment, ceiling joists are stretched between ceiling joists that constitute part of the structural frame, and the ends of these ceiling joists are connected to connecting plates provided on the ceiling joists.

[0008] Furthermore, a through-hole is provided around the connecting plate in the web portion of the main ceiling beam, and the end of the secondary ceiling beam is notched on the opposite side of the connecting plate.

[0009] Therefore, in this embodiment, when attaching a component to the main ceiling beam by inserting the mounting member into the penetration provided in the web portion of the main ceiling beam, it is possible to ensure a gap between the mounting member and the secondary ceiling beam.

[0010] In the second embodiment, the building unit is configured such that, in the building unit according to the first embodiment, the distance between the center of the penetration and the web portion of the ceiling beam is set to a distance at which a tool capable of fastening a fastening member having a shaft portion that can be inserted into the penetration can be positioned.

[0011] In the building unit according to the second embodiment, the distance between the center of the penetration provided in the web portion of the main ceiling beam and the web portion of the secondary ceiling beam is set to a distance that allows for the placement of a tool capable of fastening a fastening member having a shaft portion that can be inserted into the penetration. Therefore, when fastening the fastening member, interference between the fastening tool and the web portion of the secondary ceiling beam can be suppressed.

[0012] The building according to the third embodiment comprises a first building unit having a first ceiling beam as the main ceiling beam, and a second building unit having a second ceiling beam arranged along the first ceiling beam, wherein the first ceiling beam and the second ceiling beam are connected by a reinforcing beam.

[0013] In the building according to the third embodiment, the second ceiling beam of the second building unit is positioned along the first ceiling beam of the first building unit. The first and second ceiling beams are connected by a reinforcing beam. Therefore, in this embodiment, when fastening fastening members to the reinforcing beam, interference between the fastening tool and the ceiling joists positioned relative to the first ceiling beam can be suppressed. [Effects of the Invention]

[0014] As described above, the building unit and building according to the present invention have the excellent effect of providing space for tools to be placed in the locations where ceiling beams are installed. [Brief explanation of the drawing]

[0015] [Figure 1] This is a schematic plan view showing the configuration of the building according to this embodiment. [Figure 2] This is a schematic perspective view (viewed by one direction arrow in Figure 2) showing the configuration of the main parts of the building unit according to this embodiment. [Figure 3] This is a schematic cross-sectional view showing the relationship between the main parts of the building unit according to this embodiment and the tools (a cross-sectional view showing the state when cut along line 3-3 in Figure 1). [Modes for carrying out the invention]

[0016] Hereinafter, an example of an embodiment of a building and building unit according to the present invention will be described with reference to Figures 1 to 3. As shown in Figure 1, the "building 10" according to this embodiment includes a foundation (not shown) and a "building unit 12" as a first building unit, a "building unit 14" as a second building unit, and a "building unit 16" as a second building unit, which are arranged on this foundation.

[0017] The building unit 12 includes a frame 18 that constitutes its body. The frame 18 includes a ceiling frame 20 that constitutes the upper portion in its height direction, a floor frame (not shown) that constitutes the lower portion in its height direction, and four columns 22.

[0018] Specifically, the ceiling frame 20 includes a pair of "ceiling girders 24" as the first ceiling girders made of channel steel and a pair of ceiling girders 26 made of channel steel and set to a length shorter than that of the ceiling girders 24. The ceiling girders 24 and the ceiling girders 26 are arranged in a rectangular frame shape, and the end portions of the ceiling girders 24 and the end portions of the ceiling girders 26 are connected by a joint portion 27, thereby constituting the outer peripheral portion of the ceiling frame 20. A plurality of "ceiling joists 28" are spanned between the ceiling girders 24 at a predetermined interval. The configuration of the ceiling joists 28 and its peripheral portions will be described later.

[0019] Also, hereinafter, the longitudinal direction of the building unit 12 will be referred to as the X direction, the short transverse direction of the building unit 12 will be referred to as the Y direction, and the height direction of the building 10 will be referred to as the Z direction.

[0020] The building unit 14 has its longitudinal direction as the Y direction and is arranged on one side in the Y direction of the building unit 12 and on one side in the X direction with respect to the center in the X direction of the building unit 12.

[0021] This building unit 14 includes a frame 30 that constitutes its body. The frame 30 includes a ceiling frame 32 that constitutes the upper portion in its height direction, a floor frame (not shown) that constitutes the lower portion in its height direction, and three columns 33.

[0022] Specifically, the ceiling frame 32 includes a pair of ceiling girders 34 made of channel steel and a pair of "ceiling girders 36" as the second ceiling girders made of channel steel and set to a length shorter than that of the ceiling girders 34. The ceiling girders 34 and the ceiling girders 36 are arranged in a rectangular frame shape, and the outer peripheral portion of the ceiling frame 32 is formed by connecting the ends of the ceiling girders 34 and the ends of the ceiling girders 36 with the joint portions 38. A plurality of ceiling joists 40 are spanned between the ceiling girders 34 at predetermined intervals. In the frame 30, no column 33 is arranged below the joint portion 38 closest to the center of the building unit 12 in the X direction in the Z direction.

[0023] On the other hand, the building unit 16 has its longitudinal direction as the Y direction and is arranged on one side of the building unit 12 in the Y direction and on the other side of the building unit 14 in the X direction.

[0024] This building unit 16 includes a frame 42 that constitutes its body. The frame 42 includes a ceiling frame 44 that constitutes the upper portion in its height direction, a floor frame (not shown) that constitutes the lower portion in its height direction, and three columns 46.

[0025] Specifically, the ceiling frame 44 includes a pair of ceiling girders 48 made of channel steel and a pair of "ceiling girders 50" as the second ceiling girders made of channel steel and set to a length shorter than that of the ceiling girders 48. The ceiling girders 48 and the ceiling girders 50 are arranged in a rectangular frame shape, and the outer peripheral portion of the ceiling frame 44 is formed by connecting the ends of the ceiling girders 48 and the ends of the ceiling girders 50 with the joint portions 52. A plurality of ceiling joists 54 are spanned between the ceiling girders 48 at predetermined intervals. In the frame 42, no column 46 is arranged below the joint portion 52 closest to the center of the building unit 12 in the X direction in the Z direction.

[0026] The ceiling girder 24 on one side in the Y direction, the ceiling girder 36 on the other side in the Y direction arranged along it, and the ceiling girder 50 are connected via a "reinforcing beam 56".

[0027] In this embodiment, the configuration of the ceiling joist 28 located near the reinforcing beam 56 is a distinctive feature. The configuration of the ceiling joist 28 and its surrounding area will be described in detail below.

[0028] As shown in Figure 2, a "connecting plate 57" with its thickness direction as the X direction is positioned on the inner circumference of the main ceiling beam 24, and this connecting plate 57 is joined to the main ceiling beam 24 by a joint (not shown) such as welding.

[0029] The ceiling beam 28 is shaped like a rectangular tube extending in the Y direction, and its "end portion 28A" is joined to the connecting plate 57 by a joint (not shown) such as welding. Furthermore, when viewed from the Z direction, the end portion 28A has a rectangular cutout on the opposite side of the connecting plate 57.

[0030] Furthermore, as shown in Figure 3, a pair of through-holes 60 are formed at predetermined intervals in the Z direction around the connecting plate 57 in the web portion 24A of the main ceiling beam 24 on one side in the Y direction, through which the shaft portion 58A of the bolt 58, which serves as a fastening member for fastening the reinforcing beam 56, can be inserted. The lower through-hole 60 in the Z direction is positioned so as to fit within the inner circumference of the secondary ceiling beam 28 when viewed from the Y direction.

[0031] Furthermore, the distance D between the center of the lower penetration 60 in the Z direction and the "web portion 28B" of the ceiling beam 28 is set to a distance (approximately 20-25 mm) that accommodates the head 62A of the "ratchet-type torque wrench 62" used as a tool for fastening the bolts 58.

[0032] <Operation and Effects of This Embodiment> Next, the operation and effects of this embodiment will be described.

[0033] In this embodiment, as shown in Figures 1 and 2, the building unit 12 has ceiling joists 28 spanning between ceiling main beams 24 that constitute part of the building frame, and the ends 28A of these ceiling joists 28 are connected to connecting plates 57 provided on the ceiling main beams 24.

[0034] Furthermore, a through-hole 60 is provided around the connecting plate 57 in the web portion 24A of the main ceiling beam 24, and the end portion 28A of the secondary ceiling beam 28 is notched on the opposite side of the connecting plate 57.

[0035] Therefore, in this embodiment, when attaching the reinforcing beam 56 to the ceiling beam 24 by inserting the shaft portion 58A of the bolt 58 into the through portion 60 provided in the web portion 24A of the ceiling beam 24, it is possible to ensure a gap between the bolt 58 and the ceiling joist 28.

[0036] Furthermore, the distance D between the center of the penetration 60 provided in the web portion 24A of the main ceiling beam 24 and the web portion 28A of the secondary ceiling beam 28 is set to a distance at which a ratchet-type torque wrench 62 capable of fastening a bolt 58, which has a shaft portion 58A that can be inserted into the penetration 60, can be positioned. Therefore, when fastening the bolt 58, interference between the ratchet-type torque wrench 62 used to fasten it and the web portion 28A of the secondary ceiling beam 28 can be suppressed.

[0037] Furthermore, in this embodiment, the ceiling beams 36 of building unit 14 and 50 of building unit 16 are arranged along the ceiling beam 24 of building unit 12. The ceiling beams 24, 36, and 50 are connected by reinforcing beams 56. Therefore, in this embodiment, when fastening bolts 58 to the reinforcing beams 56, interference between the ratchet-type torque wrench 62 used for fastening and the secondary ceiling beams 28 arranged relative to the ceiling beams 24 can be suppressed. [Explanation of symbols]

[0038] 10 Buildings 12 Building Units (First Building Unit) 14. Building Unit (2nd Building Unit) 16 Building Units (2nd Building Unit) 24 Ceiling beam (1st ceiling beam) 24A Web Department 28 Ceiling beam 28A end 28B Web Department 36 Ceiling beam (2nd ceiling beam) 50 Ceiling beam (2nd ceiling beam) 56 Reinforcement beams 57 Connection Plate 58 Bolts (fastening members) 58A Shaft 60 Penetration 62 Ratchet-type torque wrench (tool)

Claims

1. The structure includes a ceiling joist that spans between the main ceiling beams that constitute part of the structural frame, and whose ends are connected to connecting plates provided on the main ceiling beams. A through-hole is provided in the peripheral portion of the connecting plate in the web portion of the main ceiling beam, The end portion has a notch on the opposite side of the connecting plate. Building unit.

2. The distance between the center of the penetration and the web portion of the ceiling beam is set to a distance at which a tool capable of fastening a fastening member having a shaft portion that can be inserted into the penetration can be positioned. The building unit according to claim 1.

3. The building comprises a first building unit having a first ceiling beam as the main ceiling beam, and a second building unit having a second ceiling beam arranged along the first ceiling beam, wherein the first ceiling beam and the second ceiling beam are connected by reinforcing beams. building.