JPH0111092Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a folding chair.

For example, as a conventional folding chair,
−38439 Publication and 1929 Utility Model Application Publication No.
There is one in Publication No. 13518. That is, in the former method, a pair of rectangular frames each having a seat support frame attached to the upper end of the leg frame are crossed in an X shape, and the middle part of the rising part of the leg frame is pivoted, and a backrest frame is attached to each seat support frame. is erected, opening regulating rods are provided at the front and rear ends of a pair of seat support frames, and a seat is stretched between the pair of seat support frames and the backrest frame. In addition, the latter has columns with different lengths at the front and back, and a horizontal foot section is provided across the bottom ends of these columns, and a hinge is provided between them for a pair of frames with a seat support shaft at the top. Furthermore, a backrest is stretched between a pair of long pillars, and a seat that can be folded into two is arranged between a pair of seat support shafts.

However, all of the conventional folding chairs mentioned above have disadvantages in that they have complicated frame structures, cannot be manufactured at low cost, and are bulky due to their increased height when folded.

The present invention solves these conventional problems, and aims to provide a folding chair that can simplify the shape of the frame, make it easier to manufacture, and reduce costs, and that can be folded into a compact shape. purpose.

Embodiments of the present invention will be described with reference to the drawings. A,
A' is a support member made of pipe material, etc., and 1, 1' are the base legs of the support member placed on the floor. Intermediate support portions 3, 3' are bent in a row, and rising portions 4, 4' to which end portions of the backrest member 12 are attached are provided at the upper ends of the intermediate support portions 3, 3', and support members A, A' Seat mounting members 5, 5' are provided near the upper ends of the intermediate pillars 3, 3' to project horizontally approximately forward, and the central parts of the intermediate pillars 3, 3' are crossed with each other to form an axis. Three trapezoidal members 8 of a seat 8 made of polypropylene or the like are attached to the seat mounting members 5 and 5' of the two support members A and A', respectively, and are pivoted at the mounting portion 6.
A, 8b and the trapezoidal members 8a, 8c on both sides are fixed inside the triangular member 8c. Members 8a and 8 of the seat 8
The boundary between c, 8b and 8c is a V-shaped folding hinge 10, 11 provided from the rear center edge 7 to the front edge 9 of the seat 8. These folding hinges 10 and 11 are formed into folding hinges having a connecting thin wall portion 8d on the lower edge like members 8a and 8c, 8b and 8c, as shown in FIG. 8A. In addition, as shown in Figure 8B of the table, members 8a and 8c,
The side edges of 8b and 8c are pivotally connected with a pin 8e.

To use the folding chair of the present invention, the backrest member 12 is extended by spreading the base legs 1 and 1' of the support members A and A' horizontally about the pivoting part 6. At the same time, widen the space between seat mounting members 5 and 5',
The members 8a, 8b, 8c of the seat 8 are formed into a flat plate shape so that the seat 8 can be seated by opening on both sides.
Once the width of the backrest member 12 is widened, it will not widen any further, so even if you sit on the seat, you will not feel unstable.

When storing or transporting without using the present invention, by holding the rising parts 4 and 4' by hand and bringing them together inwardly, the strut members A and A' will be drawn together around the shaft attachment part 6, and the As shown in FIGS. 6 and 7.

As mentioned above, the folding chair of this invention is
The support member, the so-called frame, includes a base leg part at the lower end that is placed on the floor, a central support part at the middle part that rises from the base leg part at an acute angle, and a rising part at the upper end part. It can be easily manufactured by bending a single piece of pipe material, etc., and its frame structure is simple, so it can be manufactured at low cost. In addition, since the strut members are pivoted by intersecting the intermediate struts that rise up at an acute angle between the pair, the intersecting axes have an angle with respect to the horizontal, which is different from the conventional method. Unlike the horizontal or vertical axis, the height of the frame does not increase when folded, and the folded shape can be made compact, making it convenient to carry and store.

[Brief explanation of the drawing]

Figure 1 is a side view of the present invention in use, Figure 2 is a plan view, Figure 3 is a bottom view, Figure 4 is a front view, and Figure 5 is a front view.
6 is a side view of the present invention in a folded state, FIG. 7 is a front view, and FIGS. 8A and 8B are enlarged side views of the hinge portion of the seat. A, A'... Support member, 1, 1'... Pedestal part,
2, 2'... Front end of the base leg, 3, 3'... Intermediate support part, 4, 4'... Rising part of the upper end of the intermediate support part, 5, 5'... Seat mounting member, 6... shaft attachment part,
7...Rear central edge of seat, 8...Seat, 9...
Front edge of the seat, 10, 11...Folding hinge, 12...Backrest member.

Claims (1)

[Scope of utility model registration request] A stand leg part placed on the floor is provided at the lower end part, an intermediate support part is provided that bends at an acute angle from the front end of the stand leg part, and a rising part that stands up vertically is provided at the upper end of the intermediate support part, A pair of strut members in which the center portions of the intermediate strut portions intersect with each other and are pivotally supported by a shaft attachment portion, a flexible backrest member having an end portion attached to a rising portion of these strut members, and the pair of struts. Seat mounting members project horizontally toward the front above the pivoting part of the intermediate support part of the member, and are fixed to each seat mounting member and folded into a V shape from the rear center edge to the front edge. A folding chair consisting of a seat with a hinge.