JPH088671Y2 - 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 a chair of this type, according to Japanese Utility Model Publication No. 56-48204, a plate-shaped seating portion can be freely opened and closed within a set angle range, the seat height can be adjusted in stages, and the seating portion is closed to open the rear supporting leg. It is well known that a plurality of chairs are arranged in close contact with each other so that they can be stacked.

[Problems to be solved by the device]

In this case, since the seating portion 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.

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

[Means for solving the problem]

In order to achieve this object, the present invention is directed toward the inside of the pillar-shaped front legs on both sides, which are inclined rearward and extend to the back rest position, on both sides inclined forward with the vicinity of the height position of the plate-shaped seating portion as the upper end portion. Columnar rear legs are arranged, the upper end and the front leg are fixed to each other at their intersections, and both sides of the plate-shaped seating rear end toward the front are hinged at the intersections so that they are rearward of the intersections on both sides of the seating. The upper end of the stopper link with the long groove is hinged to the rear end located at
A pin that engages with the long groove at an intermediate position from the upper end to the lower end of the rear legs on both sides and that restrains the rotation of the seat when the load is applied forward of the hinge position of the seat to a substantially horizontal position. It is characterized in that each is projected.

[Action]

In use, the seating portion is supported in a substantially horizontal state by its rear end portion being restrained from rotating by a pin engaging with the lower edge of the long groove of the stopper link.

At the time of horizontal stacking, the seating parts of the arranged chairs are rotated in the backrest direction while the pins are relatively moved along the long groove, and the front leg, the rear leg, the stopper link, and the seating part are adjacent to each other from the front or the rear. Stack in contact or near contact.

〔Example〕

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

In FIG. 1, reference numeral 10 denotes columnar front legs on both sides, which are, for example, pipes and extend linearly while being inclined rearward. A back support 19 is rotatably attached by a pin 19a between the upper ends of the front legs. 11 is a columnar rear leg on both sides inclined forward, which is located inside the front leg 10 and has a bent portion 11a formed by bending the upper end near the height position of the seating portion 13 along the front leg 10.
It is fixed by crossing at. The rotation axis is at this intersection
12 is attached, and the plate-like seating portion 13 is hinged to the front side from the rear end and to the rear side from the center.

At the rear end portion of the seat portion 13, as shown in an enlarged view in FIG. 2, an upper end portion of a stopper link 20 having a long groove 21 is hinged by a pin 14. A pin 22 is provided at an intermediate position on the lower end of the rear legs 11 on both sides so as to engage with the long groove 21 and restrain the rotation of the seating portion 13 when seated at a substantially horizontal position. The length from the lower edge to the upper edge of the long groove 21 that engages with the pin 22 is set to the pin 22 at a position where the seat portion 13 rotates during stacking and the rear portion of the seat portion 13 is aligned in parallel with the rear leg 11. It is set to abut. At the same time, the vertical width of the backrest 19 is set so as to form a space between the front legs 10 so that the seating portion 13 can rotate without interference until the seating portion 13 is thus parallel to the inclination direction of the rear legs 11. Has been done.

At the time of use, the seating portion 13, as shown in FIG. 1,
The rear end portion is supported by the pin 22 of the stopper link 20 and supported in a substantially horizontal state.

At the time of horizontal stacking, as shown in FIG. 4, the arranged chairs 1 are rotated from the front or the rear toward the seat portion 13 toward the backrest 19, so that the front and rear front legs 10, the rear legs 11 and the seat portion 13 are rotated.
Are stacked in order with the two touching each other.

[Effect of device]

As described above, according to the present invention, since the hinged seat portion is horizontally supported by the stopper link at the rear side, the supporting frame or the stopper below the seat portion can be eliminated, so that the stacking pitch can be narrowed, and the hand or hand can be used. Eliminates the risk of clothes being caught between stoppers. Since the hinge position is closer to the front than the rear end of the seating portion, the operating force of the seating portion during stacking can be reduced and the moment can be reduced, so that the stopper structure does not become bulky and the seating can be stabilized. It can be constructed easily and inexpensively with a pipe.

[Brief description of drawings]

1 is a perspective view of a chair according to an embodiment of the present invention, FIG.
FIG. 3 is a side view of a stopper link portion of a chair according to the same embodiment, FIGS. 3A and 3B are front and plan views of the chair according to the same embodiment, and FIG. 4 is a side view showing a stacking state of the chair according to the same embodiment. It is a figure. 10 …… front leg, 11 …… rear leg, 13 …… seating part, 20 …… stopper link, 21 …… long groove, 14, 22 …… pin.

Claims (1)

[Scope of utility model registration request] 1. Inside both of the columnar front legs that are inclined rearwardly and extend to the back rest position, the columnar rear legs that are inclined forwards are arranged with the upper end near the height position of the plate-shaped seating portion. Fixing the intersecting portions of the upper end portion and the front leg to each other, hinge both sides of the rear end of the seating portion closer to the front at the intersecting portions, and are located rearward of the intersecting portions on both sides of the seating portion. The upper ends of the stopper links, each having a long groove formed in the rear end portion, are hinged, respectively, and are engaged with the long groove at an intermediate position from the upper end to the lower end of the rear legs on both sides, and the seating portion A chair characterized in that each of the chairs is provided with a pin for constraining the rotation of the seating portion to a substantially horizontal position when a load is applied forward of the hinge position.