JPS589923Y2 - Beam member - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a beam member, and more specifically, to a beam member for fixing joints of wooden frames and the like.

More specifically, this invention relates to an auxiliary member, that is, a flint beam, for accurately fixing the joints of beams or foundations made of wood at right angles, such as flint foundations.

It is common to use beams and flint beams to reliably reinforce the joints between square timbers in wooden buildings.

As a type of flint beam, a flint beam has been developed which is an L-shaped metal member, ie, an angle, and has nail holes or bolt holes provided at both ends of the angle to connect it to wood.

These flint beams are very easy to use and effective in construction because they are suitable for mass production, but when the wood dries and shrinks after construction, the bolted parts become loose. As a result, it is not possible to properly secure the wood joints, and the question is how well the building will withstand earthquakes.

The purpose of this invention is to provide a beam member that can effectively and reliably fix the joint of a wooden frame even after construction, taking the above points into consideration.

Another object of this invention is to provide a beam member that is easier to construct than conventional beams of this type.

Another object of this invention is to provide a metal beam member that does not cause any problems when constructing floors, etc., and is convenient for supporting joists and the like.

Next, preferred embodiments of this invention will be described in detail with reference to the drawings.

As shown in the drawings, the metal beam member 10 of this invention is preferably cut out from an elongated metal plate, such as a steel plate 12, and its both ends are preferably formed so that the extended straight lines can intersect at right angles.

A plurality of nail holes 13 are provided at both ends of the metal plate 12 for fixing the metal plate 12 to wood with nails.

Further, a reinforcing member 14 made of the same material as the metal plate 12 is integrated with the metal plate 12 by suitable means such as welding so as to extend in the longitudinal direction along the central axis X-Y of the metal plate 12. .

With the above configuration, the metal plate 12 and the reinforcing member 14 form a T-shaped cross section.

Both ends of the reinforcing member 14 end at a distance inward from both ends of the metal plate 12, and make a constant angle θ, or an angle of 45° in the case of a flint beam, with respect to the center line XY of the metal plate. The bent portions 15 are formed by bending them in the same direction.

The edges 16 of these side bends 15 can be inclined toward the metal plate 12 .

Further, a nail hole 17 may be provided at the end of the reinforcing member 14 in the vicinity of the bent portion 15, if necessary.

Since the beam member 10 of this invention is constructed as described above, when this is used, at the joint between the wood and the square timber W, a saw is applied to the part of the beam member 10 corresponding to the bent part 15. By making a slight cut C by, for example, inserting the bent part 15 of the reinforcing member 14 into the cut C, both ends of the metal 12 are placed on the surface of the square timber W.

Therefore, by inserting a nail into the nail hole 13 of the metal plate 12 and driving it, the beam member 10 can be accurately fixed to the joint.

According to the beam member 10 of this invention, the reinforcing member 14 is correctly positioned and fixed in a state in which the reinforcing member 14 bites into the joint part of the wood at the pressure welding part 15, so that even if the wood shrinks after construction, there is no possibility that the reinforcing member 14 may shrink. However, it does not cause any trouble.

Further, according to this invention, since the beam member 10 forms a T-shape together with the reinforcing member 14, when installing a floorboard, the flat portions of the metal plates 12 on both sides of the reinforcing member 14 are used to support the reinforcing member 14. This is much more effective than a beam constructed of L-shaped angle members.

[Brief explanation of drawings]

Figure 1 is a perspective view of the metal beam member of this invention seen from the bottom, Figure 2 is a perspective view of a notch made in the right-angled frame joint of wood, and Figure 3 is a perspective view of the metal beam member of this invention viewed from the bottom. FIG. 3 is a perspective view showing a state in which it is used for a frame joint. The relationship between the symbols in the drawings and the elements of this invention is as follows. 10... Beam member, 12... Metal plate, 1
3...Nail hole, 14...Reinforcement member, 15
・・・・・・Refraction part.

Claims (4)

[Scope of utility model registration request] (1) A long and thin metal plate with multiple nail holes at both ends,
a reinforcing member configured integrally with the metal plate so as to extend in the longitudinal direction along the central axis of the metal plate, and both ends of the reinforcing member are spaced inwardly from the ends of the metal plate. 1. A beam member characterized in that the beam member has a bent portion that ends at a certain angle in the same direction with respect to the central axis. (2) The beam member according to claim 1, wherein the angle of the bent portion of the reinforcing member is 45°. (3) The beam member according to claim 1 or 2, wherein the edge of the bent portion of the reinforcing member is inclined. (4) The beam member according to each of the above claims, wherein a nail hole is provided in a portion of the reinforcing member near the bent portion.