JPS6214928Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a chair with a simple structure consisting of a seat base and legs.

Several types of chairs have been used in the past, with a simple structure in which metal rod-shaped legs are attached to a circular plate-shaped base, but this type of chair has a function that allows you to sit in a stable state. , the structure is simple and lightweight;
What is most desirable is something that is strong, easy to carry, and can be stacked neatly and easily when not in use.

The present invention aims to provide a chair that can fully exhibit all of the above-mentioned functions required of a chair with a simple structure, and is also extremely comfortable to sit on.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the structure of a chair according to the present invention shown in the drawings will be described below.

In the drawing, 1 is a seat, and 2 is four legs, and the seat 1 and four legs 2 constitute a chair. The seat 1 is made of thermoplastic plastic by blow molding into a circular plate shape with a hollow double wall structure, and a part of its circumference has a hollow that rises outward and upward in an inclined manner. The extending portion 3 having a double wall structure or a double wall structure in which inner surfaces are joined together is integrally formed. This extending portion 3 is molded at the same time as the blow molding of the seat 1, and a hand hole 4 is formed in the extending portion 3. The four legs 2 are formed by bending metal pipes into an inverted L-shape, and their mounting portions 2a are fitted into grooves 5 formed on the lower surface of the seat base 1, and the required number of legs 2 are formed by bending metal pipes into an inverted L shape. It is fixed to the base 1 by a mounting bracket 6. The bent portion 2b and the leg portion 2c of the leg 2 extend outside the circumference of the seat 1, and the leg portion 2c extends substantially vertically downward from the bent portion 2b. A leg cap 7 made of rubber or the like is fitted into the lower end of each leg 2c. Note that a required number of ribs 8 are formed in a concave shape on the lower surface of the seat 1, and the upper ends of these ribs 8 are welded to the back surface of the upper surface of the seat 1, thereby reinforcing the seat 1. ing. As the thermoplastic plastic constituting the seat 1, polyethylene, polypropylene, vinyl chloride, polyamide, polystyrene, ABS resin, etc. are used.

The chair configured as described above has a seat base 1 and legs 2.
The structure is extremely simple. Since the seat 1 has a hollow double wall structure made of thermoplastic plastic, it has sufficient strength and is extremely lightweight. In addition, since the extension part 3 is integrally formed on the seat base 1, the strength of the seat base 1 is further increased, and the lower back is comfortable on the base 1, making it extremely comfortable to sit on. My condition has improved and I am able to sit in a stable condition. Note that the seat 1 has a circular plate shape, and the bent portions 2b and leg portions 2c of the legs 2 protrude outside the circumference of the seat 1, so that the chairs can be stacked one after another in an orderly manner when not in use. . In this case, by sequentially shifting the extensions 3 in the circumferential direction of the seat 1, the extensions 3 do not interfere with the stacking of chairs. Since a hand hole 4 is formed in the extension portion 3, by putting your hand on this hand hole 4,
The chair is easy and convenient to carry.

In short, the chair according to the present invention is composed of a seat base and legs. an extending portion of a double wall structure that rises outwardly and upwardly in an integral manner, and a hand hole is formed in the extending portion;
The legs are made by bending three or more rod-shaped members into an inverted L shape, and the attachment parts of the legs are fixed to the bottom side of the base.
The bent portions of the legs and the legs protrude outside the circumference of the seat, and the leg portions extend downward from the bent portions almost perpendicularly, so that the user can sit in a stable state. It has an extremely simple structure, is lightweight, has great strength, is easy to carry, can be stacked neatly and easily when not in use, and has all the functions required of a chair with a simple structure. It is possible to obtain effects such as extremely comfortable sitting.

[Brief explanation of the drawing]

The drawings show an embodiment of the chair according to the present invention, in which Fig. 1 is an overall plan view, Fig. 2 is a longitudinal sectional front view of the seat, Fig. 3 is a longitudinal sectional side view of the same, and Fig. 4 is a longitudinal sectional view of the seat. is a sectional view taken along the line A-A in Fig. 1, Fig. 5 is a sectional view taken along the line B-B of the same as above, Fig. 6 is a perspective view of the whole, Fig. 7 is a plan view of the stacked state, and Fig. 8 is a sectional view of the above pedestal. FIG. 1...Seat, 2...Legs, 3...Extension, 4...
Hand hole, 8...rib.

Claims (1)

[Scope of utility model registration request] Consisting of a seat and legs, the seat is made of thermoplastic plastic by blow molding to form a circular plate with a hollow double-wall structure, and a part of the circumference rises outward and upward in an inclined manner. An extension part of a double wall structure is integrally formed, a hand hole is formed in the extension part, and the legs are made by bending three or more rod-shaped members into an inverted L shape, and the legs are attached. The bent part of the leg is fixed to the lower surface of the seat, the bent part of the leg and the leg protrude outside the circumference of the seat, and the leg part extends downward from the bent part almost perpendicularly. A chair.