JPH024602Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a hollow member such as furniture that is constructed by bending a plate material.

[Technical background of the invention and its problems] In general, leg members for furniture, etc.
As shown in FIG. 2, a connecting thin layer 2 made of a flexible material such as a vinyl chloride sheet is laminated on the surface of a plate material 1, and a plurality of bending grooves 3 are formed on the back surface at appropriate intervals. A plate-like body 4 with a concave
There is one formed by bending the above-mentioned bending groove 3, abutting both ends 5, 5 to form a hollow part 6, and gluing the abutting surfaces of the two ends 5, 5. .

However, in conventional leg members of this kind, the abutting portion was a plane joint, so when abutting, the connecting thin layer 2
The restoring force caused the abutting part to jump up, making it difficult to fix it with adhesive. In addition, since the plate-shaped body 4 is formed by bending through the bending grooves 3, if each bending groove 3 is not formed precisely, the entire body will be twisted when abutting, and since the abutting portion is a flat surface, this twisting This has the disadvantage that not only the aesthetic appearance of the bonded edge on the surface is impaired, but also the strength is reduced. Furthermore, since the abutment part was a flat surface, it was vulnerable to side impacts.

[Summary of the invention] This invention consists of laminating a connected thin layer made of a flexible material such as a vinyl chloride sheet on the surface of a plate material whose front and back surfaces are parallel, and laminating a plurality of connected thin layers at appropriate intervals on the back side. consisting of a plate-shaped body with a recessed bending groove, which is bent by the bending groove;
In a hollow leg member such as furniture, which is formed by abutting both ends and bonding the end faces to each other, male and female abutting parts are provided at one end of the board material and the other end that abuts against this. is formed, and the female abutting part has an end face that is continuous at right angles to the front surface, and a trapezoidal tenon groove is provided at the corner between this end face and the edge on the back side, and a tenon is formed at the end on the front side. However, a tenon groove is formed on the back side, and one slope of the tenon groove and the end face,
and the other slope and the back surface are each formed to be smaller than 90 degrees. The above-mentioned problems can be solved by providing a hollow leg member for furniture, etc., which is characterized by being provided with a tenon groove in which the tenons, excluding the surface side of the mold abutment part, are abutted. It prevents the thin layer from springing up, making it simple and easy to fix the abutting surfaces, preventing twisting and distortion during abutting and bonding, improving aesthetics and strength, and further improving the strength after bonding. The purpose is to

[Embodiment of the invention] A hollow leg member for furniture or the like according to the invention will be described based on an embodiment shown in the drawings.

The plate-like body 7 has a connecting thin layer 9 made of a flexible material such as a vinyl chloride sheet, cloth, paper, etc. laminated on the surface of a plate material 8 whose front and back surfaces are parallel, and a connecting thin layer 9 made of a flexible material such as a vinyl chloride sheet, cloth, paper, etc. Multiple bending grooves 1
0 is recessed. The bending grooves 10 are formed in grooves 10a, 10b, and 10c in which a W-shaped groove is connected to the bottom of a ladder-shaped groove and has an intermediate protrusion in the groove bottom, and in 10d in a V-groove. .

The female abutting portion 14 formed at one end of the plate-like body 7 has an end surface 15 that continues perpendicularly to the surface,
A trapezoidal tenon groove 16 is provided at the corner between the end surface 15 and the edge on the back surface side. The angle α between one inclined surface 16a of the trapezoidal tenon groove 16 and the end surface 15, and the other inclined surface 16 of the trapezoidal tenon groove 16.
The angle β between b and the back surface of the plate-shaped body 7 is
Formed smaller than 90 degrees. In this example, the angle α
is formed at 75 degrees, and angle β is formed at 45 degrees.

Therefore, an inverted trapezoidal tenon 17 is formed on the front side of the trapezoidal tenon groove 16, and a V-shaped protrusion 18 is formed on the back side.

A male abutting portion 19 having a shape corresponding to the shape of the end of the female abutting portion 14 at the time of abutment is formed at the other end of the plate-like body 7.

That is, the male type abutment part 19 has an end face 20 that continues perpendicularly to the back surface, and the surface side of the inverted trapezoidal tenon 17 of the female type abutment part is disposed between the end face 20 and the edge on the front side of this end face 20. A V-shaped tenon groove 21 is provided where the two sides 15 and 16a abut against each other, and a trapezoidal tenon that is fitted into the tenon groove 16 of the female abutment part 14 is provided on the back side of the tenon groove 21. 22 is formed, and a V-shaped protrusion 23 is formed on the front side.

Here, the tenon 22 is not the same size as the tenon groove 16 of the female abutment part 14, but is formed in a size to be press-fitted, that is, slightly larger.

The hollow leg member of furniture or the like according to this embodiment is constructed by bending the plate-shaped body 7 through the bending groove 10, and abutting the male and female abutting portions 14 and 19 formed at both ends to each other adjacent to the bending groove 10. It is formed by bonding the end surfaces and the abutting end surfaces of the male and female abutting portions 14 and 19 with adhesive. 24 is a hollow portion of the leg member thus formed, and 25 is a synthetic resin cap fitted to the upper and lower open ends of the leg member.

In hollow leg members such as furniture having the above configuration, since the tenon groove 16 of the female abutting part 14 is trapezoidal, when abutting, the tenons 17 and 22 of one abutting part are connected to the tenons of the other abutting part. It is easy to fit into the grooves 16 and 21. Moreover, since the tenon 22 of the male type abutment part 19 is formed slightly larger than the tenon groove 16 of the female type abutment part 14, the fit is press-fitted, and
After fitting, the angles formed by both inclined surfaces 16a and 16b of the tenon groove 16 of the female abutment part 14 and the end face 15 and the back surface of the plate-shaped body 7 are both smaller than 90 degrees, so the abutment part When the connecting thin layer 3 tries to open due to the restoring force, one inclined surface 16a of the tenon groove 16 of the female abutting part 14 presses the inclined surface 21a of the tenon 20 of the male abutting part 19 on the tenon groove 21 side. As a matter of fact,
Its resilience is regulated.

Furthermore, since the male and female abutting portions 14, 19 are composed of the tenons 17, 22 and tenon grooves 16, 21 as described above, even if there is a slight difference in the dimensions of each bending groove 10, this slight difference is absorbed by the structure of the abutting portions 14 and 19, and twisting at the time of abutment is prevented.

[Effects of the invention] As described above, according to the hollow leg member for furniture, etc. according to the invention, when both ends of the plate-shaped body are abutted, the abutment part is prevented from jumping up due to the restoring force of the connecting thin layer. This makes fixing the abutting part simple and easy, and also prevents twisting and distortion of the abutting part, making it possible to precisely adhesively fix the abutting part, making it possible to secure the joining edge. The appearance of the surface can be improved and the strength can be improved, and since the abutting parts are structured so that they can be fitted into each other, the strength can be improved.

Furthermore, since the plate-shaped body can be constructed by simply forming tenon grooves of a simple shape on both end faces perpendicular to both the front and back sides, there is also the effect that processing is easy.

[Brief explanation of the drawing]

Figures 1 to 4 show an embodiment of the hollow leg member for furniture, etc. according to the present invention. Figure 1 is a developed end view, Figure 2 is a folded end view, and Figure 3 is an enlarged view of the main parts. An end view, FIG. 4 is a perspective view of the leg member, and FIG.
B is a developed end view and a leg member end view of a conventional example. 7...Plate-shaped body, 8...Plate material, 9...Connection thin layer, 10...Bending groove, 14...Female type abutment part,
15... End face, 16... Tenon groove, 16a... One inclined surface, 17... Tenon, 19... Male abutment part,
20... End face, 21... Tenon groove, 22... Tenon.

Claims (1)

[Scope of utility model registration request] A board in which a connecting thin layer made of a flexible material such as a vinyl chloride sheet is laminated on the surface of a board material whose front and back surfaces are parallel, and a plurality of bending grooves are recessed at appropriate intervals on the back surface. Consists of a shaped body,
In a hollow leg member such as furniture, which is formed by being bent by the above-mentioned bending groove, and by abutting both ends and bonding the end faces to each other, one end of the plate material and the other end abutting against this. Male and female abutting portions are respectively formed on the two sides, and the female abutting portion has an end face that is continuous at right angles to the front surface, and a trapezoidal tenon groove is provided at the corner between this end face and the edge on the back side. A tenon is formed on the front side edge and a tenon groove is formed on the back side, and the angles between one slope of the tenon groove and the end face, and the angles formed between the other slope and the back side are each smaller than 90 degrees. In addition, the male type abutting part is provided with a trapezoidal tenon that is press-fitted into the tenon groove of the female type abutting part, and a tenon groove in which the tenons other than the surface side of the female type abutting part are abutted. A hollow leg member for furniture, etc., characterized by: