JPS6235834Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a corner connection device for mutually assembled members assembled at right angles in fittings or buildings such as a four-sided frame of a sash or a grid frame.

For hollow members that are assembled at right angles in fittings, etc., there are many cases in which the ends of the members are cut at 45 degrees and butted against each other.In this case, a joint piece is inserted in the corner part and the member and joint piece are assembled at right angles to each other. They are fixed from the surface with fasteners such as nails or screws, but in this case there is no effect of drawing the members together, and the butt portions often open. As a result, the finish of the corner portions is poor and unsightly, and if the dimensional accuracy is not as expected, the installation condition may be affected.

In order to eliminate the above-mentioned conventional disadvantages, the present invention punches and forms an inwardly inclined protruding piece on the side wall near the end of a hollow member whose ends are butted together, and also forms a protruding piece on the inner surface of the protruding piece. The cuffs at both ends of a planar L-shaped corner fitting inserted into the mating corner are exposed with a small gap between them, and screws inserted from the protruding pieces are screwed into the cuffs of the corner fitting. in,
It is characterized in that the butt parts are drawn together by tightening the screws, and the butt parts are connected extremely tightly.

The present invention will be explained below with reference to drawings of embodiments.
In Figs. 1 to 3, 1, 1 is a hollow square member whose ends are cut at a 45° angle and butted vertically and horizontally, and the inner corner side walls 2, 2 near the ends are inwardly Slanted protruding pieces 3, 3 are punched out, screw holes (not shown) are bored in the protruding pieces, and holes 4, 4 are formed in the punched side walls 2, 2. Reference numeral 5 denotes a corner fitting having a hook-shaped or U-shaped cross section and an L-shape in plan view, and has inclined sleeve pieces 7, 7 formed at both ends of the inner corner wall 6 facing the protruding pieces 3, 3, and the sleeves. A screw hole 8 is drilled in the piece, and the entire piece is inserted into the butting corner of the members 1, 1, and the sleeve pieces 7, 7 are made to face the protruding pieces 3, 3 with a booth opening t, and then the protruding pieces The screws 9 inserted from 3 and 3 are screwed into the screw holes 8 of the sleeve pieces of the corner tool.

According to this proposal, the ends of the members 1 and 1 are cut at a 45° angle and assembled at a 90° angle vertically and horizontally, and the mutual members are pulled together via the corner tool 5, so that the abutting portions come into close contact and open. There is no.

That is, the corner tool 5 inserted into the butt corner of the member forms sleeve pieces 7, 7 at both ends of the inner corner wall 6, and the sleeve pieces also form protruding pieces 3 punched into the side walls 2, 2 of the member. , 3 with a small distance t, so that the screw 9 inserted from the protruding piece
When screwed into the screw hole 8 of the sleeve piece, the sleeve pieces 7, 7 come close to the projecting pieces 3, 3 side, and at the same time, the entire corner fitting 5 comes into close contact with the inner corner side of the vertical and horizontal members 1, 1, and the two members are brought into butt direction. It acts to attract the navel.

By making the butt corners come into close contact in this way, the parts can be assembled in a good finished state, which not only gives a good appearance, but also ensures accurate dimensions, which allows for the installation of grids, etc., and fittings to be done in an orderly manner. .

The one shown in FIGS. 4 and 5 is another embodiment of the present invention, in which members 1, 1 have projecting pieces 3', 3' on planar side walls 2', 2' near the ends. , and facing the projecting piece, downwardly inclined sleeve pieces 7', 7' formed at both ends of the top wall 6' of the L-shaped corner fitting 5' having a U-shaped cross section are attached at a small interval t'. The screws 9 inserted through the protruding pieces 3', 3' are screwed into the screw holes 8' of the sleeve pieces of the corner fittings in the same manner as in the first embodiment. However, in this embodiment, the front side walls 2' of the members 1,1,
This embodiment differs from the first embodiment in that protruding pieces 3', 3' are formed on the top wall 6' so that the sleeve pieces 7', 7' of the corner tool also face the protruding pieces. It goes without saying that it has the same effect as the first embodiment in that the members 1 and 1 are tightly connected to each other by tightening the screws 9. be.

[Brief explanation of the drawing]

The drawings are examples, in which Fig. 1 is a perspective view of the main parts of the proposed device, Fig. 2 is a plan view of the same, Fig. 3 is a corner fitting with an L-shaped cross section, and B is a corner fitting with a U-shaped cross section. FIG. 4 is a perspective view of main parts showing another embodiment of the present invention, FIG. 5 is a perspective view of a corner tool used in the above, and FIG. 6 is a perspective view of members assembled vertically and horizontally. be. 1, 1' are members, 2, 2' are side walls, 3, 3' are projecting pieces, 5, 5' are corner fittings, 6 is an inner corner wall, 6' is a top wall, 7, 7' are sleeve pieces, 8 , 8' is a screw hole, 9 is a screw.

Claims (1)

[Claims for Utility Model Registration] (1) An inwardly sloping projecting piece is formed by punching on the side wall near the end of the hollow member whose ends are butted, and the inner surface of the projecting piece is provided with an inner surface inside the abutting corner of the member. A corner of a fitting member, etc., in which the sleeve pieces at both ends of a flat L-shaped corner fitting inserted into the corner fitting are exposed at a small interval, and screws inserted from the protruding pieces are screwed into the sleeve pieces of the corner fitting. Connection device. (2) The connecting device according to claim 1, wherein the protruding piece is formed on the side wall of the inner corner, and the sleeve pieces are formed on both ends of the inner corner wall of the corner fitting. (3) The connecting device according to claim 1, wherein the protruding pieces are formed on the front side wall, and the sleeve pieces are formed on both ends of the top wall of the corner fitting.