JP3650922B2 - Construction structure of architectural metal frame - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a joining structure of a metal frame for building that can firmly join the corners of the metal frame by a simple operation.
[0002]
[Prior art]
Conventionally, in order to form a building frame, an upper frame and a vertical frame formed in a predetermined cross-section are prepared for each member, and the ends of these frame members are notched and assembled to each other. Later, it was fixed using welding means.
Also, without fitting and joining in this way, the end of each member was cut into an inclined shape and the cut surfaces were brought into contact with each other and welded or fixed with screws using a bracket such as a corner block. .
[0003]
[Problems to be solved by the invention]
However, in the above-described fitting assembly, a notch mold for fitting becomes complicated, and much work is required for welding and finishing work. In addition, in the case of forming the frame corners by bringing the frame members that are cut into an inclined shape into contact with each other, not only the misalignment due to the displacement of each frame material occurs at the joint, but also the labor for welding and fitting of the metal fittings is required. It was. In addition, when joining with a metal fitting or the like, there is a possibility that the contact is not sufficiently made, a gap is formed in the joint portion, or sufficient strength against torsional force cannot be secured.
[0004]
[Means for Solving the Problems]
The present invention has been made for the purpose of solving these problems, and in forming a frame corner by joining a metal frame for construction, a long metal frame material having a predetermined cross section is provided. A V-shaped notch is provided in the direction of the prospective surface, and a plurality of locking pieces are alternately opposed to each other at a predetermined interval on the notch end surface located on the prospective surface. The metal frame member is bent along the V-shaped notch, the notch end surfaces are brought into contact with each other, and the front end side of the engaging piece engaged with each other is bent. It is characterized in that a frame corner is formed.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
One embodiment of the joining structure of the metal frame for construction concerning the present invention is described based on a drawing.
In FIG. 1, reference numeral 1 denotes a metal frame attached to an opening, and the metal frame 1 is composed of a top-shaped three-side frame 2 and a lower frame 3 composed of an upper frame 1a and left and right vertical frames 1b and 1b. It is configured.
[0006]
The three-sided frame 2 is formed by bending a long frame member 5 made of a steel plate or the like to form a frame corner 4. The frame member 5 has a prospective surface 5a and a frame as shown in FIG. The length is formed in a substantially U-shaped cross section composed of finding surfaces 5b, 5b extending at right angles from both ends of the prospective surface 5a, and further ribs 5c, 5c bent so as to face the leading ends thereof. Are set to dimensions corresponding to the lengths of the left and right vertical frames 1b, 1b and the upper frame 1a, and when the three-way frame 2 is formed, the notches 6, 6 are formed at predetermined positions to form the frame corners 4, 4. Is provided. As shown in FIG. 2 (B), the notch portion 6 has a V-shape as viewed from the side of the finding surface 5b of the frame member 5 with the ribs 5c and 5c remaining on the tip side thereof, and extends in the direction of the prospective surface 5a. The tip end angle R is set at a right angle.
That is, the frame member 5 is divided into left and right vertical frames 1b and 1b and an upper frame 1a by a V-shaped cutout portion 6 and is connected in a series by ribs 5c.
[0007]
Reference numeral 6a denotes a plurality of locking pieces that are located on the prospective surface 5a of the frame member 5 and that are opposed to each other from the notch end faces 6b and 6b that are opposed to each other at predetermined intervals. The distance t1 between 6a and 6a is set slightly wider than the width t2 of the opposing locking piece 6a.
FIG. 3 is a perspective view of a notch main part of the frame member 5.
[0008]
Next, a case where the frame corner 4 is joined using the frame member 5 formed in this way will be described with reference to FIG.
The upper frame 1a formed across the notch 6 provided in the frame 5 is bent at a right angle by the rib 5c at the tip of the V-shaped notch 6 with respect to the vertical frame 1b (in the direction of the arrow in FIG. 4A). ) And the two notch end surfaces 6b and 6b are brought into contact with each other, and at the same time, the plurality of notch end surfaces 6b and 6b which are located on the prospective surface 5a and are opposed to each other are alternately provided at a predetermined interval. One of the locking pieces 6a is fitted between the other locking pieces 6a, 6a and the leading ends thereof protrude from each other. From this state, the leading end side of the locking piece 6a of the vertical frame 1b is expected to be the upper frame 1a. If the front end side of the locking piece 6a of the upper frame 1a is bent toward the surface 5a side of the vertical frame 1b, the frame corner 4 is formed as shown in FIG. As a result, the cut-out end surfaces 6b and 6b are pressed together by bending at the distal end side of the locking piece 6a, and are joined without causing a gap in the joint portion.
[0009]
In the above embodiment, the case where the frame corner portion 4 is formed at a right angle has been described. However, for example, when a polygonal frame is formed, the tip angle of the V-shaped cutout portion 6 is changed. Of course, other angles may be used.
[0010]
In addition, the metal frame 1 may be configured as an L-shaped two-way frame instead of a three-way frame, and it suffices as long as the corners of the frame are joined as described.
[0011]
【The invention's effect】
According to the present invention, when forming the corners of the frame, frame members composed of different members are not joined to each other, so that a step due to a mistake in the joints does not occur, and skill and labor are required. Since the frame corners can be formed only by engaging the integrally formed locking pieces and bending the tip without using welding means or connecting fittings, the work efficiency is improved. Moreover, since the locking pieces are joined and fixed in a meshed state, a strong frame corner can be obtained even with a twisting force.
[Brief description of the drawings]
FIG. 1 is an external view of a metal frame.
FIG. 2A is a top view of a frame member.
(B) is a side view of (A).
(C) is a plan view of (A).
FIG. 3 is a perspective view of a main part showing a notch part of FIG. 2;
FIG. 4A is an operation state diagram for forming a frame corner.
(B) is a joined state diagram of the corners of the frame.
FIG. 5 is an external perspective view of a frame corner.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Metal frame 1a Upper frame 1b Vertical frame 2 Three-sided frame 3 Lower frame 4 Frame corner 5 Frame material 5a Finding surface 5b Expecting surface 5c Rib 6 Notch 6a Locking piece 6b Notch end surface

Claims (1)

A long metal frame member having a predetermined cross section is provided with a V-shaped cutout portion in the direction of the prospective surface, and a plurality of the cutout end surfaces located on the prospective surface are provided at predetermined intervals. The metal frame members are bent along the V-shaped cutouts so that the cutout end faces come into contact with each other and mesh with each other. A joining structure for a metal frame for building, wherein the front end side of the locking piece is bent to form a corner portion of the frame.

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