JPH0334123Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a folding chair in which the rising angle of a backrest member and the height and inclination of a seat plate can be adjusted in relation to each other.

There are various types of chairs, such as office chairs, dining chairs, rest chairs, and easy chairs.In these chairs, the height and inclination of the seat plate or the rising angle of the backrest member are determined as appropriate depending on the purpose. It will be done.

That is, for example, an office chair or a dining chair,
Since the chair is used to work or eat while sitting, the seat of the chair is high and approximately horizontal, and the backrest is set so that it is easy to perform certain tasks while facing a desk or table. It is assumed to be approximately vertical.
In addition, in rest chairs and easy chairs, the seat height is low and tilts backwards, and the backrest also reclines backwards so that you can take a resting position with your body leaning back and your legs thrown diagonally forward. There is.

Therefore, office chairs and rest chairs differ in the height and inclination of the seat board, or the rising angle of the backrest, and they cannot be used in common.
In homes, offices, etc., different chairs had to be prepared depending on the purpose.

The present invention was developed in view of these points, and by making it possible to adjust the rising angle of the backrest member and the height and inclination of the seat board in relation to each other, it can be used for various purposes from office use and eating to rest use. The purpose is to provide a folding chair that is suitable for a wide range of uses.

That is, the folding chair of the present invention has one leg member, and the intermediate portions of the one leg member and each other are first pivoted on a shaft and intersect with each other, and a rising portion that curves and rises at the upper end is provided. the other leg member;
a seat plate having an upper end portion of the one leg member pivoted to the front end portion by a second shaft and an engaging portion provided at the rear end portion; and a plurality of steps in the vertical direction along the rising portion of the other leg member. and a locking part that removably locks the engaging part, which is provided at a lower stage and has a smaller distance from the second shaft, and is integrally provided or attached to a rising part of the other leg member. the seat plate is located substantially horizontally in a state in which the engaging portion of the seat plate is engaged with a locking portion located at the top of the plurality of seats; Further, the backrest member is configured to stand up substantially vertically.

Hereinafter, the present invention will be described with reference to the drawings and examples.

In FIGS. 1 to 5, reference numeral 1 designates one leg member consisting of two parallel pipes, and a pedestal portion 3 is provided at the lower end portion 2. Reference numeral 5 designates the other leg member having a plate shape, and the intermediate portion of the leg member 1 and the other leg member 5 are pivoted to each other by a first shaft 6 so as to intersect with each other. A pedestal part 8 is provided at the lower end part 7 of the other leg member 5, and a rising part 1 that rises while being curved is provided at the upper end part 9.
0 is formed. Reference numeral 11 designates a seat plate, and from its center to its rear end, a recessed groove 12 into which the other leg member 5, especially its rising portion 10, can be inserted is formed. is pivotally attached to the second shaft 13, and an engaging portion 14 is provided at the rear end portion across the groove 12. Further, reference numeral 15 denotes a locking portion provided in multiple stages in the vertical direction along the rising portion 10 of the other leg member 5, and the lower the stage, the smaller the distance from the second shaft 13 is. The plurality of locking portions 15 removably lock the engaging portions 14 provided at the rear end of the seat plate 11, respectively. As shown in FIG. 5, the locking portion 15 is formed into a narrow, irregularly shaped hole to ensure secure locking with the engaging portion 14. In this case, the locking parts 15 are 15a, 15b, 15b,
There are three pieces of 15c. Further, 16 is a backrest member, and the rising portion 1 of the other leg member 5
It is provided integrally following 0.

Note that the pedestals 3 and 8 of the one leg member 1 and the other leg member 10 are each provided with a rotating sliding member such as a roller pipe or a caster.

The folding chair of the present invention is composed of the above-mentioned parts, and as shown in FIG. Each part is shaped so that the seat plate 11 is positioned approximately horizontally when locked to the topmost locking part 15a among the plurality of locking parts provided along the section 10, and the backrest member 16 stands up approximately vertically.・It determines the dimensions.

Therefore, in the folding chair of the present invention constructed as described above, the engaging part 14 at the rear end of the seat plate 11 is set to any one of the plurality of engaging parts 15a, 15.
b and 15c, the height and inclination of the seat plate 11 and the rising angle of the backrest member 16 can be adjusted in relation to each other according to the purpose of the chair. What is indicated by a broken line in FIG. 6 is that the height of the seat plate 11 is made high and approximately horizontal by locking the engaging portion 14 with the uppermost locking portion 15a, and the backrest member 16 is approximately This is a case where the chair is placed vertically, and is used as an office chair, for example. Also, what is shown by a solid line is the engaging portion 14.
By locking to the lowest locking portion 15c, the seat plate 11 is lowered and tilted backward, and the backrest member 16 is also tilted backward at the same time, and is used as a chair for rest. .

To explain this point in more detail, as shown in FIG.
In the state in which the seat plate 11 is held in position a, the seat plate 11 is approximately horizontal, and the backrest member 16 is approximately vertical. Therefore, when the locking position of the locking portion 14 is moved to the lower locking portion 15b, the locking portion 15b is moved to the locking portion 15b.
Since it is located below A, the slope is given by the difference in height, and the seat plate 11 is moved backward (backrest member 16
side). Further, one leg member 1 and the other leg member 5 are pivoted by a first shaft 6 to form an X-shape, and the upper end 4 of one leg member 1 is pivoted to the front end of the seat plate 11. Since the engaging portion 13 at the rear end is engaged with the upper end 9 (rising portion 10) of the other leg member 5, the seat plate 11 is opened when one leg member 1 and the other leg member 5 are opened. This means that the degree is regulated. By the way, the distance between the second locking part 15b from the top and the second shaft 13 is smaller than that between the topmost locking part 15a and the second shaft 13. Therefore, the locking of the engaging portion 14 is performed from the locking portion 15a to the locking portion 15a.
5b, the degree of leg opening between one leg member 1 and the other leg member 5 becomes larger, thereby lowering the height of the seat plate 11, and at the same time, the other leg member 5
will fall down, and the backrest member 16 will also lean backwards accordingly. Furthermore, if the engaging part 14 is replaced with the locking part 15c located at a lower stage, the seat plate 11 will tilt further backward, and its height will become lower.
At the same time, the backrest member 16 also tilts more rearward. Figure 8 shows the seat plate 11 and the backrest member 1.
6 is an explanatory diagram in which the locking portions are adjusted in conjunction with each other, and in this case, the locking portions are provided in five stages. For example, indicates the mode of use, such as for working, for meetings, V for rest, and easy chair.

In addition, the height and inclination of the seat plate 11, the backrest member 1
The inclination of 6 is the leg members 1 and 5 on one side and the other side, and the seat plate 1.
1, the shape of the rising portion 10, the spacing between the plurality of locking portions, etc., as appropriate.

FIG. 9 shows the folded state, with the first shaft 6
The one leg member 1 and the other leg member 5 are folded around , and the seat plate 11 is folded around the second shaft 13 .
It is something that can be folded.

FIG. 10 shows another embodiment, in which a separately produced backrest member 16 is fixed to a rising portion 10 at the upper end 9 of the other leg member 5.

As mentioned above, the folding chair of this invention is
By locking the engaging portion provided at the rear end of the seat plate with one of the plurality of locking portions, the inclination and height of the seat plate and the inclination of the backrest member can be adjusted, and they can be adjusted in relation to each other. Since it can be adjusted to suit the purpose, it can be used for a wide range of purposes, from office use to rest use.

In addition, it has a simple structure and can be folded, making it convenient for storage and transportation.

[Brief explanation of drawings]

Fig. 1 is a side view of a folding chair according to an embodiment of the present invention, Fig. 2 is a plan view, Fig. 3 is a front view, Fig. 4 is a rear view, and Fig. 5 is a view of the locking part. The enlarged views, FIGS. 6 to 8 are explanatory diagrams of usage, FIG. 9 is a side view of the folded state, and FIG. 10 is a rear view of another embodiment. 1... One leg member, 5... The other leg member, 6
...First axis, 10...Rising part, 11...
Seat plate, 13...Second shaft, 14...Engagement portion, 1
5, 15a, 15b, 15c...Locking portion, 16...
...Backrest member.

Claims (1)

[Scope of utility model registration request] one leg member; the other leg member has a rising portion that curves and stands up at its upper end; a seat plate having an upper end of the leg member pivoted to the front end with a second shaft and having an engaging portion at the rear end;
A locking portion that removably locks the engaging portion, which is provided in multiple stages in the vertical direction along the rising portion of the other leg member, and the distance from the second shaft is decreased as the stage goes lower. and a backrest member provided integrally with or attached to the rising portion of the other leg member, the engaging portion of the seat plate being located at the top of the plurality of locking portions. 1. A folding chair characterized in that the seat plate is positioned substantially horizontally when engaged with the folding chair, and the backrest member is configured to stand substantially vertically.