JPH0750987Y2 - Chair - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a chair that can be stacked in order from the front or the rear along a floor surface.

[Conventional technology]

As for this type of chair, according to Japanese Utility Model Publication No. 56-48204, the seat plate can be freely opened and closed within a set angle range, and the seat height can be adjusted in stages, and there are multiple seat plates with the seat plate closed and the rear support legs open. It is well known that individual chairs are provided in close proximity to each other so that they can be stacked.

[Problems to be solved by the device]

In this case, because the seat is supported only at the rear end,
The moment at that portion becomes large, and when the hinge structure is made to have the corresponding strength and rigidity, it becomes large. Therefore, there is a problem that the stacking pitch becomes large and the angle tends to vary when the seating portion is returned to the horizontal state. Furthermore, when stacking, it was necessary to operate the legs and the seat.

Therefore, an object of the present invention is to provide a chair having a small stacking pitch and having a simple structure which can be stacked in order along the floor surface.

[Means for Solving the Problems]

In order to achieve this object, the present invention hinges a plate-shaped seat portion to a rear leg or a connecting member between the rear legs without providing a backrest, and the front leg is fixed to the rear leg via the connecting member. At the same time, stoppers for supporting the seating portion in a substantially horizontal state are provided on the connecting members reaching the front legs or the rear legs. The back surface of the front end of the seat is set higher than the surface of the rear end of the seat, and the cross-sectional shape from the front leg to the rear leg is such that another chair with the same front structure can be stacked inside. In addition, it is configured to be gradually smaller toward the rear.

[Action]

When the rear side chair is moved forward or the front side chair is moved backward, the front surface of the rear seat of the front seat penetrates into the rear surface of the front end of the rear seat, and the front chair of the rear seat moves. Stacked inside.

Hereinafter, stacking is performed in order from the front or the rear in the same manner.

〔Example〕

 1 to 4 show a chair according to an embodiment of the present invention.

FIG. 1 shows a chair 9 of the present invention, in which a rear leg 11 is provided below the rear portion of a frame 10 as a U-shaped connecting member without providing a back support (FIG. 2), and a plate shape is provided. The seating portion 12 is rotatably supported by a hinge 14 at the central portion (FIG. 3a).

At both ends of the frame 10, front and rear legs 15 on both sides, armrest portions 15a on both sides, and a back support portion 15b are integrally fixed, and pipes 16 inclined upward toward the rear are fixed. The frame 10 also functions as a stopper that supports the seat 12 in a horizontal state, and the pipe 16 is covered with an elastic material 16a.

As shown in FIG. 3A, the back surface 12a of the front end portion of the seating portion 12 is formed in an upward curved shape so that the seating portion 12
It is set at a position higher than the surface 12b of the rear end portion.

Casters 17 are attached to the lower ends of the front legs 15 and the rear legs 11, respectively. The distance between the front legs 15 is set so that another chair 9 having the same structure in the front can be stacked inside.
The width is wider than the width of the rear portion of the frame 10, and the frame 10 and the seating portion 12 are formed so as to gradually narrow toward the rear.

The operation is as follows.

When the rear chair 9 is moved forward or the front chair 9 is moved backward, the rear end surface 12b of the front seating portion 12 slides into the rear surface 12a of the front end of the seating portion 12 of the rear chair 9 ( 3b), the rear seating portion 12 is automatically rotated and lifted,
The sheets are stacked in order as shown in FIG.

FIG. 5 shows another embodiment of the present invention, in which the same parts as those in the above-mentioned embodiment are designated by the same reference numerals.

In this case, as shown in FIG. 6a by enlarging the inside of the circle A, a sleeve 32 loaded with a spring 31 provided below the seat receiver 30 is inserted at the upper end portion of the front leg 15 of the pipe 16. ing.
When the user is not seated, the height of the back surface of the front part of the seating part 12 is raised so that the seat part 12 can sneak in without coming into contact with the rear surface of the front chair. In the seated state, the seat support 30
Slider portion 30a slides in the groove 32a against the spring force,
The groove end 32b abuts in a substantially horizontal state.

FIG. 7 shows still another embodiment of the present invention, in which the connecting frame 36 constitutes the bottom frame and
The seat 39 is directly hinged to the upper end of the integrally formed rear leg 37, and the stopper is directly attached to the similarly formed front leg 38.

[Effect of device]

As described above, according to the present invention, since the seating portion is supported by the front legs or the connecting portion, the hinge structure of the rear portion is simplified, and thus the stacking pitch can be reduced. Moreover, simply approaching each other from the front or the rear along the floor,
The front seating portion is sequentially stacked under the back seating portion and is stacked.

[Brief description of drawings]

1 is a perspective view of a chair according to an embodiment of the present invention, FIG. 2 is a perspective view of a frame portion of the chair according to the same embodiment, and FIG. 3a is a side view of a seat portion of the chair according to the same embodiment. 3b is a side view for explaining the stacking state of the seating portion of the chair according to the embodiment, FIG. 4a is a plan view of the frame portion of the chair for stacking state according to the embodiment, and FIG. 4b is for the same embodiment. FIG. 5 is a side view of the chair in a stacking state, FIG. 5 is a perspective view of a chair according to another embodiment of the present invention, FIG. 6a is an exploded perspective view within a circle A of FIG. 5, and FIG. 7 is a perspective view of a chair according to still another embodiment of the present invention. 11, 37 …… rear legs, 12, 39 …… seating part, 14 …… hinge, 1
5, 38 ... Front legs.

Claims (1)

[Scope of utility model registration request] 1. A plate-shaped seat portion is hinged to a rear leg or a connecting member between the rear legs without providing a back support, and the front leg is fixed to the rear leg via the connecting member, and the front leg or the front leg is fixed. The connecting member reaching the rear leg is provided with a stopper that supports the seating portion in a substantially horizontal state, the back surface of the tip end portion of the seating portion is set to a position higher than the rear end portion surface of the seating portion, A chair characterized in that the cross-sectional shape from the front leg to the rear leg is gradually reduced toward the rear so that another chair having the same structure in the front can be stacked inside.