JP7270147B2 - Beam support hardware - Google Patents

Description

TECHNICAL FIELD The present invention relates to beam support hardware for connecting columns and beams in a wooden house.

In the framing method, which is widely used in wooden houses, members such as pillars and beams must be strongly connected to each other to ensure earthquake resistance.
In particular, regarding the connection between the pillar and the beam, as disclosed in Patent Document 1, a metal fitting with a U-shaped cross section is bolted to the pillar, and a slit is provided at the end of the beam to accommodate the support plate of the metal fitting. Metal fittings are known that have a recess for receiving the head.

JP-A-10-331260

However, the construction method using this metal fitting has the following problems.
(1) When attaching metal fittings to a pillar, the top and bottom may be attached incorrectly.
(2) When a metal fitting is fixed with a single bolt, the metal fitting may rotate around the bolt.

SUMMARY OF THE INVENTION An object of the present invention is to provide a beam receiving hardware that is not attached upside down by mistake.

The first invention of the present application, which has been made to achieve the above object, is a beam support fitting attached to the side surface of a pillar and for connecting the pillar and the beam, wherein the flat plate-shaped abutting portion abuts against the side surface of the pillar. and a beam support plate protruding at right angles from both ends of the contact portion. The fixing part has a fixing part that fits into the fixing hole, and the side surface of the fixing part is provided with a key-shaped tenon that fits into the mortise groove provided in the radial direction of the fixing hole. The interior has a space capable of accommodating the head of a bolt for fixing to the pillar, and the interior of the tenon on the side of the fixing portion communicates with the space inside the fixing portion to hold the bolt. To provide a beam receiving hardware characterized by having a bolt tenon groove capable of accommodating a head tenon protruding like a key from the head .

The present invention can obtain at least one of the following effects by the means for solving the above problems.
(1) Due to the tenon, it is not possible to fit the fixing portion of the beam support hardware into the fixing hole that does not have a tenon groove in the correct direction. Therefore, the top and bottom are not attached by mistake.
(2) By providing a tenon on the side surface of the fixed part, even if the fixed part is a single beam-receiving hardware, it will not rotate.
(3) Co-rotation of the bolt can be prevented by using a bolt provided with a bolt tenon groove inside the fixing portion and a bolt tenon corresponding to the bolt tenon groove on the bolt head.

Explanatory drawing of beam support hardware (1) Explanatory drawing of fixed part (1) Explanatory diagram of the mounting state of the beam support hardware (1) Explanatory drawing when using beam support hardware orthogonally Explanatory drawing of the mounting state when the beam support hardware is used orthogonally Explanatory drawing of the inside of the fixed part Explanatory drawing of beam support hardware (2) Explanatory drawing of the mounting state of the beam support hardware (2) Explanatory drawing of fixed part (3) Explanatory drawing of beam support hardware (3)

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below based on the embodiments shown in the drawings.

[Example 1]
<1> Configuration of Beam-receiving Hardware The beam-receiving hardware 1 is attached to the side surface of the pillar 6, and the beam is dropped and fixed to connect the pillar 6 and the beam.
The beam receiving hardware 1 is a U-shaped steel member in plan view, and consists of an abutment portion 2 and beam support plates 3 protruding perpendicularly from both ends of the abutment portion 2 (FIG. 1).

<2> Fixing Part The contacting part 2 is provided with fixing parts 21 protruding in a substantially columnar shape at predetermined intervals (FIG. 2).
A bolt hole 22 is provided in the center of the fixing portion 21 . A bolt head 41 can be accommodated inside the substantially cylindrical fixing portion 21 .
The fixing portion 21 is fitted into a similarly cylindrical fixing hole 61 formed in the side surface of the corresponding column 6 . A bolt insertion hole 62 passing through the column 6 is provided in the center of the fixing hole 61 .
The opposing surface of the column 6 is provided with a receiving hole 63 for receiving the nut 5 screwed with the bolt 4 and the washer 51 .
The fixing hole 61, the bolt insertion hole 62 and the receiving hole 63 are processed in advance at the precut factory.
Then, a bolt 4 is inserted between the beam support plates 3 of the beam receiving hardware 1 abutting on the side surface of the pillar 6, and the nut 5 is screwed through the bolt hole 22, the bolt insertion hole 62, and the washer 51, thereby tightening the beam. Fix the bracket 1 to the post 6 (Fig. 3).

<3> Tenon A tenon 23 is protruded from at least one side surface of the fixed portion 21 . A tenon groove 64 corresponding to the tenon 23 is also provided in the fixing hole 61 of the pillar 6 . The mortise groove 64 is also processed in advance at the precut factory.
When fixing beams perpendicular to each other to the column 6, it is necessary to shift the height of the bolts 4 so that the bolts 4 do not interfere with each other (FIGS. 4 and 5).
For this reason, the fixing portion 21 provided on the contact portion 2 is asymmetrically provided on the center line of the contact portion 2 in the height direction, so that the bolt 4 interferes by turning one of the beam receiving metal fittings 1 upside down. can be installed without
At this time, there is a risk that the beam-receiving hardware 1 is installed upside down. Since the fixing part 21 cannot be fitted into the fixing hole 61 which does not have the mortise groove 64 in the correct direction, the upper and lower sides are not attached by mistake.

[Example 2]
A bolt mortise groove 24 may be provided inside the fixing portion 21 that accommodates the bolt head 41 by cutting out a portion of the columnar shape to match the shape of the tenon 23 (FIG. 6).
By providing a head tenon 42 on the bolt head 41 (Fig. 7) and housing the head tenon 42 in the bolt tenon groove 24 (Fig. 8), the bolt 4 rotates together when the nut 5 is screwed. There is no

[Example 3]
In Examples 1 and 2, a plurality of fixing portions 21 of the contact portion 2 are provided. It may rotate.
However, the beam receiving hardware 1 of the present invention does not rotate by providing the tenon 23 on the side surface of the fixing portion 21 (FIGS. 9 and 10).

Reference Signs List 1 beam receiving hardware 2 abutment portion 21 fixed portion 22 bolt hole 23 tenon 3 beam support plate 4 bolt 41 bolt head 42 head tenon 5 nut 51 Washer 6... Post, 61... Fixing hole, 62... Bolt insertion hole, 63... Accommodating hole, 64... Tenon groove

Claims (1)

Beam-receiving hardware for attaching to the side of a pillar and connecting the pillar and the beam,
A flat plate-shaped contact portion that contacts the side surface of the column;
a beam support plate protruding perpendicularly from both ends of the contact portion,
The contact portion has a fixing portion that protrudes in a substantially cylindrical shape in the opposite direction to the beam support plate and is fitted into a fixing hole provided on the side surface of the column,
A key-like tenon protruding from the side surface of the fixing portion, which fits into a tenon groove provided in the radial direction of the fixing hole ,
The fixing part has a space in which a head of a bolt for fixing to the pillar can be accommodated,
The tenon has a bolt tenon groove inside the tenon on the fixed part side, which communicates with the space inside the fixed part and can accommodate a head tenon that protrudes like a key from the head of the bolt. and beam receiving hardware.

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