JPH0110124Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a bonding structure of a lattice body.

Conventionally, this type of latticework has mainly been connected using fixing tools such as screws, or by welding the intersections, but these methods require considerable time and effort, leading to high costs. The parts and welded parts were exposed and looked unsightly.

The present invention was devised in view of the above points, and its purpose is to create a lattice connection structure that can be easily and stylishly fixed by press-fitting and engaging the vertical and horizontal beams. It is about providing.

The present invention will be described below based on embodiments shown in the drawings.

1 to 5 show first to fourth embodiments of the lattice coupling structure of the present invention, in whole or in part.

Lattice body X of the first embodiment shown in FIGS. 1 and 2
is constructed by disposing a plurality of vertical struts 1, 1, . . . between a pair of upper and lower horizontal struts 2, 2, which are installed at a predetermined distance from each other.

The vertical beam 1 has a base portion 1a with a square cross section, and an engaging wall 3 is formed from the center of a wall 1b facing the horizontal beam 2 at the base portion 1a, and protruding walls 4, 4 are formed in a longitudinal direction from both sides. , and has a shape that extends in parallel. The distal end of the engagement wall 3 is provided with a sagittal engagement protrusion 3a all along the longitudinal direction, and the protruding wall 4
There are upper and lower protruding walls 5, 5 in the horizontal support 2, which will be described later.
A pair of fitting grooves 4a, 4a are provided in which the fitting grooves are fitted, respectively. That is, in this embodiment, four fitting grooves 4a are provided for one joint portion.

The horizontal beam 2 has a base portion 2a having a square cross section, and upper and lower mutually parallel protruding walls 5, 5 extend in a longitudinal direction from a wall 2b facing the vertical beam 1 at the base portion 2a. This protruding wall 5 has a cross section corresponding to the engaging wall 3 of the vertical beam 1 described above.
An engagement groove 6 having an engagement recess 6a is provided.

Incidentally, these vertical and horizontal beams 1 and 1 are made of aluminum and are formed by extrusion molding.

In order to connect the vertical beam 1 and the horizontal beam 2, the protruding wall 5 of the horizontal beam 2 is inserted into the fitting groove 4a formed in the projecting wall 4 of the vertical beam 1.
At the same time, the engaging wall 3 of the vertical arm 1 is pressed into the engaging groove 6 formed on the protruding wall 5 of the horizontal arm 2. By doing this, the engaging protrusion 3a and the engaging recess 6a are engaged, so that not only is there no risk of the vertical arm 1 slipping out of the horizontal arm 2, but there is also no movement in the longitudinal direction of the horizontal arm 2. It becomes possible. In addition, since the protruding wall 5 of the horizontal strut 2 is fitted into the fitting groove 4a formed in the protruding wall 4 of the vertical strut 1, the vertical strut 1 does not move in its longitudinal direction.

Furthermore, in this embodiment, the heights of the protruding wall 4 of the vertical strut 1 and the protruding wall 5 of the horizontal strut 2 are the same, and the end face of the protruding wall 4 of the horizontal strut 1 is the same as that of the vertical strut 1 of the horizontal strut 2. The engaging convex portion 3a and the engaging concave portion 6a engage when the end surface of the protruding wall 5 of the horizontal beam 2 collides with the opposing wall 1b of the horizontal beam 2 on the vertical beam 1. The rigidity of the lattice body is greatly increased because the bonding is completed.

Note that it is also possible to arrange a closing member (not shown) on the opening side of the vertical and horizontal beams 1 or 2, if necessary.

FIG. 3 shows a second embodiment of the present invention, in which the shapes of each member are similar to those of the first embodiment, but the depth of the fitting groove 4a formed on the protruding wall 5 of the vertical beam 1 is different from that of the first embodiment. A fitting groove 7 into which the protruding wall 5 of the vertical beam 1 can fit is formed in the protruding wall 5 of the horizontal beam 2 at the same depth as the fitting groove 4a on the vertical beam 1 side. . This is similar to the other first embodiment. By doing this, the protruding walls 4 of the vertical struts 1 and the protruding walls 5 of the horizontal struts 2 fit into each other, so that a lattice body with less rattling can be obtained.

FIG. 4 shows a third embodiment of the present invention, in which the vertical beam 1 is
It has a base 1a with a rectangular cross section, and an engagement wall 3 integrally extends in the longitudinal direction from one side of the wall 1b facing the crosspiece 2 in the base 1a, and a wall 4 projects from the other side parallel to this. is overdue. At the tip of the engaging wall 3, an engaging convex portion 3a is formed all over in the longitudinal direction, and the protruding wall 4
has a fitting groove 4 into which a protruding wall 5 of a horizontal beam, which will be described later, is fitted.
A has been applied.

The horizontal beam 2 has a base portion 2a having a rectangular cross section, and a projecting wall 5 extends in the longitudinal direction from the center of a wall 2b facing the vertical beam 1 at the base portion 2a. This protruding wall 5 is provided with an engagement groove 6 having an engagement recess 6a. 8 is a cut groove, which is the engaging wall 3
This is done to make it easier for the engagement groove 6 to widen when being press-fitted into the engagement groove 6.

FIG. 5 shows a fourth embodiment of the present invention, and the cross section is omitted.
It uses a letter-shaped member. In this case, vertical 1
The parallel walls that constitute the engaging wall 3 and the protruding wall 4 become the engaging wall 3 and the protruding wall 4 as they are. The engagement wall 3 has an engagement protrusion 3a at its tip, and the protruding wall 4 has a fitting groove 4a into which the protruding wall 6 of the crosspiece 2 is fitted.

Furthermore, the parallel walls forming the crossbar 2 directly form a pair of protruding walls 5,5. This protruding wall 5 is provided with an engaging groove 6 having an engaging recess 6a, so that the engaging wall 3 of the vertical beam 1 can be engaged therewith. 8 indicates a kerf. Incidentally, the connection is performed by press-fitting in the same manner as in the first embodiment.

Although the present embodiment is as described above, it goes without saying that the specific dimensions, shapes, combinations, etc. of each member can be changed in various ways as long as they do not go against the spirit of the present invention.

The present invention is as described above, and the protruding wall of the horizontal beam is fitted into the fitting groove provided on the protruding wall of the vertical beam, and the engagement wall of the vertical beam is fitted into the fitting groove provided on the protruding wall of the horizontal beam. Since the structure is such that the engaging convex part and the engaging concave part are engaged by being press-fitted into the groove, the lattice bodies can be joined together without welding or using fixing tools as in the conventional method, so the process can be simplified. Therefore, it is possible to reduce costs, and since the head of the fixing tool and the welded part are not exposed, it is a practically useful idea that contributes to improving the appearance.

[Brief explanation of the drawing]

FIG. 1 is a partially exploded perspective view of a lattice body according to a first embodiment of the present invention, FIG. 2a is an exploded view of the same, and FIG.
Figure b is a plan view of Figure 2a, Figure 3a is an exploded view of the second embodiment, Figure 3b is a plan view of Figure 3a, Figure 4a is an exploded view of the third embodiment, 4b is a plan view of FIG. 4a, FIG. 5a is an exploded view of the fourth embodiment, and FIG. 5b is a plan view of FIG. 5a. 1... Vertical beam, 2... Horizontal beam, 3... Engagement wall, 3a
...Engaging convex portion, 4...Protruding wall (vertical side), 4a...
...Fitting groove, 5...Protruding wall (horizontal side), 6...Engagement groove, 6a...Engagement recess.

Claims (1)

[Scope of utility model registration request] On the side of the vertical bar facing the horizontal bar, an engaging wall and a protruding wall extending in the longitudinal direction are projected approximately parallel to each other, and the engaging wall has an engaging protrusion, and the protruding wall has an engaging protrusion as described below. It has a fitting groove into which the protruding wall of the horizontal crosspiece fits,
A protruding wall extends in the longitudinal direction on the side of the horizontal bar facing the vertical bar, and the protruding wall is provided with an engagement groove having an engaging recess, so that the protruding wall of the horizontal bar is connected to the vertical bar. It is characterized by fitting into the fitting groove of the protruding wall, and press-fitting the engaging wall of the vertical bar into the engaging groove provided in the protruding wall of the horizontal bar, so that the engaging protrusion and the engaging recess are engaged. The bonding structure of the lattice body.