JPS58156653A - Reinforcing integrated lumber obtained by bonding fiber under pressure - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] Long laminated timber conventionally used in construction is weak and unsuitable for decorative purposes and is subject to stress. Although the hardware is fixed and buried with nails and bolts, the size and position of the joints of the pillars are uncertain, and there is a risk of damaging the reinforcing hardware, etc. that was provided during on-site processing, and weakening the adhesive strength. However, the bearing strength of the joint part was poor.

This invention was made to improve these drawbacks, and the reinforced laminated wood of this invention has synthetic resin fibers 3 wrapped around at least the surface portion of the laminated wood 1 where the reinforcing hardware 2 is embedded. The materials for the lamina and adhesive used in the laminated wood 1 comply with the standard specifications for laminated wood and wood structure design standards, and are manufactured in accordance with the Japanese Agricultural Standards. Apply adhesive evenly to the bonded areas of all parts and parts,
The reinforcing hardware 2 is made of laminated laminated wood, and has a wide cross-section with a bonding surface that does not damage the laminated wood or fibers 3 and does not have sharp edges like small light mountain shapes, etc., and has been subjected to anti-rust surface treatment. use The synthetic resin fiber 3 includes polypropylene,
It is an ultra-thin fiber made of polyacrylic or other materials that is highly resistant to chemicals, durable, strong, and has little elasticity. It is also possible to use a tape made of these materials with an adhesive applied to the adhesive surface, and the width of the cloth is preferably 25 centimeters or less.

To explain this in more detail based on drawings, laminated wood 1
The reinforcing hardware 2 is smoothly embedded in the grooves of the same shape and cross section in the four corners of the core material of A series of diagonal windings of synthetic resin fibers 3 are applied to the surfaces of these long pieces, so that they are pressed tightly against the ends of the pieces.
The material is rolled up to a uniform thickness to the other end without overlapping or uneven winding, without wrinkles, and if necessary, reinforcement of the material length with sufficient margin only at points where stress is concentrated. The metal fittings 2 may be buried as described above, and the fibers 3 may be crimped and wrapped around the laminated wood from the ends as described above, and the outer surface formed in this way has high-quality lamina 4 on the upper and lower edges, and high-quality lamina 4 on both side edges. A high-quality laminated lamina with a desired cross section is applied to the desired position and covered with fibers 3. By changing the cross-sectional size of the outer edge lamina 4 and 5, the desired cross-section can be obtained. It is possible to obtain square timbers of the following dimensions. The finished surface is entirely covered with a decorative thin plate 6, and a removable sticker 7 is affixed to the finished product to clearly indicate the parts that can be carved and the positions of reinforcing hardware 2.

Alternatively, high-quality lamina 4 and 5 for the outer edge are crimped to the outer surface of the reinforcing metal fittings 2 that are buried flat and smooth in the four corners of the core material of the laminated wood 1, and the entire surface is covered with the outer peripheral surface. It is also possible to wrap the fibers 3 diagonally in a series while pressurizing them from the ends as described above, and then directly affix the decorative thin plate 6 to the surface of the fibers 3.

As a partial reinforcement method, reinforcing hardware 2 of the required length is embedded in the four corners of the high-quality lamina of the laminated wood 1 in the same manner as described above, and the fibers 3 are wrapped around the reinforcing hardware 2. By using the high-quality lamina 4 and the high-quality laminated lamina 5 with a margin, it is possible to perform pressure bonding using a combination of adhesive bonding and bolt connection. This method can be used for the tenon penetration part of the barrel of a through-post.

The reinforced laminated wood with the fibers of the present invention configured as described above is obtained by embedding the members and parts of the present invention in important points of the laminated wood.
By crimping, the material is made into a single piece with increased strength and rigidity, making it durable and sticky.The countless strong warp and weft threads compensate for the shortcomings of laminated wood, such as splitting and cracking, and can be wrapped tightly diagonally. This increases the effective shear stress. Furthermore, if the core member has a constant cross section, machining will be simplified and efficiency will be improved; explanatory stickers will facilitate on-site machining; excessive notches will be restrained to maintain strength; By adhering lamina 4 and 5 to the outside by changing the method of combining the members of the invention, it is possible to carve the seat part as well as the tenon of the seat tenon, improve the adhesion of the joint, and wrap it. Fiber 3 and adhesive have the effect of preventing corrosion.

In addition, the following can be done as an embodiment.

(a) The reinforcing hardware 2 can be made of light angle steel.

(b) The fibers 3 can be made into a tape made of fibers.

[Brief explanation of drawings]

FIG. 1 is a sectional view of the laminae 4 and 5 bonded to the four outer circumferential surfaces of the invention. FIG. 2 is a sectional view of the lamina 4 bonded to the upper and lower edges of the invention. FIG. 3 is a sectional view of the four corners of the invention. FIG. 3 is a cross-sectional view of fibers crimped onto a surface where reinforcing hardware 2 is embedded. FIG. 4 is a sectional view of the present invention in which reinforcing hardware 2 is embedded in the four corners and fibers 3 are crimped onto the outer peripheral surface. FIG. 5 is a cutaway perspective view of a member of the present invention 1... Laminated wood 2... Reinforcing hardware 3... Fiber 4... High quality lamina 5... High quality laminated lamina 6... Decorative thin board 7... Release sheet patent applicant Ryo Emoto

Claims (1)

[Scope of Claims] 1. Reinforced laminated wood made of fibers made of synthetic resin wrapped around at least the surface portion of laminated wood where reinforcing hardware is embedded. 2. Reinforced laminated wood made of fibers crimped together as claimed in claim 1, wherein the synthetic resin fibers are tapes made of synthetic resin fibers.