JPS5920125Y2 - Suspended support device for seat body in chair - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a fan-shaped support device for a seat body in a chair.

In other words, the seat has a suspension structure made of elastic material, making it a comfortable chair with good cushioning.Moreover, even if a concentrated load is applied to the front or rear of the seat depending on how you sit, the reaction will cause the chair to move on the opposite side. It is possible to support the seat part so that it does not lift up, and it is possible to prevent the seat body from changing greatly and becoming uncomfortable, resulting in a chair that is always comfortable to sit on, and it has a simple structure and can be implemented suitably. This is what we provide.

Next, the embodiment shown in the drawings will be described.

Figure 1 shows a side view of the entire chair. Both armrests stand parallel to both sides to provide armrests, and the frames 1 and 1 are formed into a roughly mouth shape. Both ends are connected and both armrests are a lower support frame body 5 that supports the frames 1 and 1.
The upper part of the supporting leg 2 is connected to the center of the lower part of the supporting leg 2, and a caster 6 is attached to the lower part of each leg bar 2a in four directions below the supporting leg 2.

Both armrests have the seat body 3 horizontally between the lower parts of the frames 1 and 1, and both armrests have the seat body 3 in a horizontal position between the lower inner surfaces of the frames 1 and 1 and both sides of the seat body 3 in front and rear positions. Elastic supports AI, A2 and rear elastic supports A2. The seat body 3 has a cushion-type hanging structure by interposing the elastic supports AI and A2 respectively.
2 is formed as shown in FIG. 7 by integrally baking plate bodies 8, 8 on both ends of a round elastic body 7 such as rubber, and protruding bolts 9, 9 from the drawing plate bodies 8, 8, respectively. Both front elastic supports AI are positioned forward of the supporting leg 2, one bolt 9 of AI, and the side rear elastic supports A2 are positioned backward of the supporting leg 2. One bolt 9 of A2 is inserted into both sides of the seat body 3, and the two front elastic supports AI, the other bolt 9 of A1, and the side rear elastic supports A2. A2's other bolt 9
Both armrests are constructed by being fitted laterally from the lower inner surfaces of the frames 1, 1, respectively, and attached to the tips of each by tightening nuts 10.

Both armrests have a horizontal stopper plate 4 formed so that both ends 4a, 4a are bent downward on the inner surface of the lower part of the frames 1, 1, and are fixed integrally by welding, etc., so that no load is applied to the seat body 3. In the state, both ends 4a, front elastic support A on the 4a side
The mounting is configured such that the rear elastic support member A 1 and the rear elastic support member A 2 come together and come into contact with the lower part of the stopper plate 4 .

In addition, both sides of the lower part of the rear back body 11 and both armrests are frame 1.1.
between the rear upper inner surface of the elastic supports AI and A
Elastic support A3.2 formed in the same manner as in A3.2. A3 is installed on the upper and lower sides, respectively, and the nuts 12 are tightened from the outside to install them.

Therefore, the seat body 3 has front and rear elastic supports A on both sides.
I and A2 form a hanging structure, and when the weight of a person sitting on the seat 3 is applied to almost the entire seat 3 as shown in arrow A group as shown in FIG. 10, both elastic supports AI on both sides, A2 similarly deforms and separates below both stopper plates 4, and the seat body 3 is supported with good cushioning properties.

In addition, when a person sitting on the seat 3 leans forward to work at a desk, as shown in Figure 9, the load increases on the front side of the seat 3 as indicated by the arrow, and the front elastic support is applied. body AI,
Due to the growth of AI, the front part of the seat body 3 is lowered,
Even if the rear part of the seat body 3 attempts to move upward due to the reaction, the rear elastic supports A2, A2 collide with the stopper plate 4 from below and are prevented from moving upward, and conversely, the rear part of the seat body 3 When a concentrated load is applied, the front elastic supports AI come into contact with the stopper plate 4, and the seat body 3 is supported without greatly inclining.

In this way, in this invention, both armrests that stand up on both sides are connected to each other so that the frame is supported by the supporting legs, and each armrest has a space between the lower part of the frame and both sides of the seat between them. Both elastic supports are interposed in the front and rear positions to create a cushion-type suspension structure for the seat body, and both armrests have horizontal stopper plates fixed to the lower part of the frame that span above both the front and rear elastic supports. Because of this structure, the seat body has a suspended structure with each elastic support on the left and right front and back, making the chair comfortable to sit on with good cushioning. The elastic support on the opposite side collides with the stopper plate and does not move up any further, preventing the seat body from changing significantly and becoming uncomfortable, resulting in a chair that is always comfortable to sit on. It has the advantage of being easy to construct and manufacture, and can be suitably implemented.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a side view of the entire chair, Fig. 2 is a front view of a part of the chair, and Fig. 3 is the II of Fig. 2.
4 is a plan view of a portion of FIG. 1, FIG. 5 is a perspective view of a portion of FIG. 2, and FIG. 6 is a side view of a portion of FIG. 5. , FIG. 7 is a perspective view of the elastic support, FIG. 8 is an exploded view of FIG. 4, and FIGS. 9 and 10 are explanatory views of the operation of FIG. 3. 1... Armrest is a frame, 2... Support legs, 3...
... Seat body, AI, A2 ... Elastic support, 4
...Stopper plate.

Claims (1)

[Scope of utility model registration request] Both armrests stand up on both sides to form armrests, and the frame is supported by supporting legs, and both armrests have elastic supports at their respective front and back positions between the bottom of the frame and both sides of the seat between them. The seat body has a cushion-type suspension structure, and both armrests have horizontal stopper plates fixed to the lower part of the frame, spanning above both the front and rear elastic supports. A fan-shaped support device for the seat body of a chair.