JPS6224712Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a lattice constructed by mutually assembling horizontal bars and vertical bars mainly made of extruded aluminum sections.

A conventional preferred lattice of this type is disclosed in Japanese Utility Model Application No. 170316/1983,
This lattice has a good appearance on both the front and back like a wooden lattice, but its structure requires a slightly larger number of parts, and the intersections between the horizontal and vertical bars have poor strength. are doing.

The present invention eliminates this drawback, and one embodiment thereof will be described below with reference to the drawings.

1 to 4 each show a lattice formed by assembling a plurality of horizontal bars 1 and vertical bars 2, respectively.

As is clear from FIGS. 5 and 6, each horizontal bar 1 is formed by extrusion molding of aluminum into a hollow quadrangular prism shape having a front wall 3, a rear wall 4, an upper wall 5, and a lower wall 6. Upper wall 5 and lower wall 6
Thick parts 5a and 6a protruding in opposite directions are formed on the rear half of each inner surface, and the corners between the front wall 3 and the upper wall 5 and the corner between the front wall 3 and the lower wall 6 are formed. Slanted wall portions 7 and 8 are formed at the corner portions. Each vertical beam 2 is composed of two members: a vertical beam front material 2A and a vertical beam back material 2B, each made of an extruded aluminum material. The left and right side walls 10 and 11 extend rearward from both side edges and are formed into a U-shape in cross section, and the front half of the inner surface of each of the left and right side walls 10 and 11 has a wall that protrudes in opposite directions. Part 1
0a, 11a are formed, and furthermore, at the rear ends of these left and right side walls 10, 11, opposing locking portions 10 are formed.
b, 11b are provided protrudingly. Further, the back material 2B for vertical bars includes a base wall 12 that has the same width as the front material 2A for vertical bars and closes the rear opening surface of the front material 2A, and a front surface of this base wall 12. They are arranged in parallel on both sides and can fit into the U-shaped opening 13 of the vertical beam front member 2A. Consisting of two protruding strips 14, 15, claw strips 14a, 15a are formed at required positions on the outer surfaces of these protruding strips 14, 15 to be engaged with the engaging portions 10b, 11b of the vertical beam front member 2A. has been done.

On each of the horizontal beams 1, opposing end portions of the thick portions 5a, 6a of the inner surfaces of the upper and lower side walls 5, 6 are left uncut at regular intervals along their entire length. A first fitting notch 16 is formed by cutting a predetermined width from the front side wall 3 to the upper and lower side walls 5 and 6, and the thick portions 5a and 6a are
The cross section of the first fitting notch 16 in the horizontal crosspiece 1 is formed into a U-shape as shown in FIG. In addition, in the front material 2A for the vertical beam, opposing end portions of the thick portions 10a and 11a on the inner surfaces of the left and right side walls 10 and 11 were left uncut at regular intervals along the entire length thereof. By cutting the right and left side walls 10, 11 by a predetermined length in the same state, a second fitting notch 19 that fits with the first fitting notch 16 is formed, and the thick portions 10a, 11a are formed. Remaining parts 20, 21 on the tip side of
and the front side wall 9, the cross section of the second fitting notch 19 in the vertical beam front member 2A is formed into a U-shape as shown in FIG. 7C. Furthermore, the vertical beam backing material 2B is similarly designed so that the horizontal beam 1 can be fitted from the rear side wall 4 side by cutting out a predetermined length of the projecting strips 14 and 15 at equal intervals along its entire length. A third fitting notch 22 is formed.

When assembling the horizontal beam 1, the vertical beam front material 2A, and the vertical beam back material 2B having the above-described configurations, first attach the vertical beam in front of the horizontal beam 1 as shown in FIG. Bring the front material 2A for use, fit the corresponding second fitting notches 19 of the front material 2A for vertical bars into each of the first notches 16 for fitting on the horizontal bars 1, and then insert the back material 2B for vertical bars. from the rear of the horizontal bar 1, and place the vertical bar in such a position that the portion of the horizontal bar 1 corresponding to the first fitting notch 16 fits into the third fitting notch 22 of the backing material 2B. The back material 2B is applied to the front material 2A for vertical bars, and the protruding strips 14, 15 are fitted into the U-shaped opening 13 of the front material 2A for vertical bars, and the base ends of the protruding strips 14, 15 are fitted. The claw strips 14a, 15a on the outer side surfaces can be locked to the locking parts 10b, 11b at the rear ends of the left and right side walls 10, 11, and each side can be locked without using any fasteners such as screws. The beam 1 and each vertical beam 2, that is, the vertical beam front material 2A and the vertical beam back material 2B, can be cross-connected to each other. At the intersection of each horizontal bar 1 and each vertical bar 2 arranged in a lattice structure, that is, at the mutually fitting part, the horizontal bar 1
is formed by the rear side wall 4 and the upper and lower thick portions remaining 17 and 18, and the front member 2A for the vertical beam is formed into a U-shape in cross section by the front side wall 9 and the left and right thick portions remaining 20 and 21, respectively. (See FIG. 6 C and FIG. 7 C), the side end surfaces 17a, 18a of the thick portion remaining portions 17, 18 on the side of the horizontal beam 1 and the thick portion remaining portions 20, 21 on the vertical beam front member 2A side. The side end surfaces 20a and 21a of the base wall 12 in the third fitting notch 22 of the vertical beam backing material 2B are in contact with each other in a cross-shaped manner.
The front surface is in contact with the rear side wall 4 of the horizontal beam 1.

Incidentally, slanted wall portions 2 are provided at the corner portions of the front side wall 9 and the left and right side walls 10 and 11 in the vertical beam front member 2A.
3 and 24 are formed. Also, the first
The upper wall 5 and the lower wall 6 at the fitting notch 16
The respective notch surfaces 25 and 26 of the vertical beam front member 2A have a tapered shape, and similarly the notch surfaces 27 and 28 of the left and right side walls 10 and 11 of the second fitting notch 19 of the vertical beam front member 2A also have a tapered shape. There is.

As explained above, the lattice of the present invention has hollow rectangular column-shaped horizontal bars that have a thick wall on the rear half of the inner surface of each of the upper and lower walls, and a thick wall that has a thick wall on the front half of the inner surface of each of the left and right side walls. A vertical beam front member having a U-shaped cross section and forming locking portions facing each other at the rear ends of the left and right side walls, and a front member for the vertical beam that is fitted into the U-shaped openings of the front member on both front sides of the base wall. It is composed of three types of crosspiece members: a back material for the vertical crosspiece, which has two protruding stripes to accommodate the vertical crossbeam, and a claw strip on the outer surface of each protruding strip that engages with the locking portion of the front member. Compared to conventional grids, the number of parts is smaller, making it easier to manufacture and assemble, and can be provided at a lower cost. In addition, the opposite tip side portions of each thick part are left uncut on the horizontal crosspiece, and the first fitting notch is formed by cutting from the front side wall to the upper and lower side walls. A second fitting notch that fits into the first fitting notch is formed on the front material by cutting off the left and right side walls while leaving the opposite tip side portions of each thick part uncut. In addition, the backing material for the vertical beam is provided with a third protruding strip to which the horizontal beam is fitted from the side wall side.
Since the fitting notch is formed, at the intersection of each horizontal bar and each vertical bar, the horizontal bar forms a U-shaped cross section with the upper and lower thick remaining portions and the rear side wall, which is a so-called reinforcement structure. Since the front material for the vertical beam also has a U-shaped cross section with the left and right thick remaining portions and the front side wall, the strength of the front material for both the horizontal beam and the vertical beam at this intersection is greater than that of the intersection of a conventional lattice. can also provide much larger and more rigid structural grids.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a front view of the lattice, Fig. 2 is a rear view of the same, Fig. 3 is a sectional view taken along the line - - of Fig. 5 is an exploded perspective view of the main part of the lattice,
Figure 6A is a front view showing the main part of the horizontal bar, Figure 6B is a plan view, Figure 6C is a sectional view taken along the line H--H, and Figure 7A is the main part of the front member for the vertical bar. 7B is a side view, and FIG. 7C is a sectional view taken along the line H--H in FIG. 7A. 1... Horizontal bar, 2... Vertical bar, 2A... Front material for vertical bar, 2B... Back material for vertical bar, 3... Front wall of horizontal bar, 4... Rear side wall, 5... Upper wall , 5a... Thick part, 6... Lower side wall, 6a... Thick part, 9... Front side wall of front member for vertical beam, 10... Left side wall, 10a...
Thick part, 10b...Locking part, 11...Right side wall, 1
1a... Thick part, 11b... Locking part, 12... Base wall, 14, 15... Projection strip, 14a, 15a...
Claw strip, 16...first fitting notch, 19...second
Fitting notch, 22...Third fitting notch.

Claims (1)

[Scope of utility model registration request] The front and rear side walls and the upper and lower side walls are formed into a hollow rectangular column shape, and the cross section is made up of a horizontal bar with a thick part formed in the rear half of the inner surface of each of the upper and lower walls, and the front and left and right side walls. A front member for a vertical beam, which is formed in a letter shape and has a thick part on the front half of the inner surface of each of the left and right side walls, and a locking part that faces each other at the rear end of the left and right side walls, and a base wall. A vertical crosspiece having two protruding strips on both sides of the front surface that fit into the U-shaped opening of the front member, and having claw stripes on the outer surface of each of the protruding strips that engage with the locking portions of the front member. The first fitting notch is made by cutting out the front side wall to the upper and lower side walls while leaving the facing tip side portions of each thick part on the horizontal crosspiece without removing them. A second fitting is formed on the front member for the vertical beam, and the left and right side walls are cut out while leaving the opposite end side portions of each thick portion remaining without cutting, and the second fitting is fitted into the first fitting notch. A lattice in which a fitting notch is formed, and a third fitting notch is formed by cutting out a protruding strip on the backing material for the vertical bars, into which the horizontal bars are fitted from the rear side wall side.