JPH018207Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an attachment and support device for the seat body and back body of a chair.

In other words, the sitting body, etc. can change in any way to respond to the body pressure and posture depending on the dynamic changes in weight and body shape of each person sitting on the chair, and can provide good cushioning and support. It is a comfortable chair that fits well to each person, and the frame of the legs and support part has a smart shape with a flat cross section, and the screws and nuts used for the frame and other connecting parts are None of the mounting parts such as these protrude from the outside surface, and it has a compact structure with almost no exposed parts between the seat, back, etc. and the support side, making assembly extremely easy. The present invention provides a structure that can be easily carried out, has a robust structure, and can be carried out suitably.

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

FIG. 1 shows a perspective view of the entire chair, in which a horizontal support frame 1 with an elliptical cross section and a vertical support frame 1 are connected above both supporting legs 1a that stand up on both sides. The seat body A is connected between the support frames 1 and 1 on both sides that are horizontal, and the back body B is installed between the support frames 1 and 1 on both sides that are vertical. The body A and the back body B have a structure in which a round pipe 3 is loaded as a core around the inside.

A small hole 7 is formed on the inner surface of the pipe-shaped support frame 1, and a large hole 8 is formed on the outer surface thereof in the same axial direction. The end surface of the round nut 2 that can be inserted is installed so that it can be joined to the inner surface of the small hole 7 side, and the screw hole 2a corresponds to the small hole 7 side, and the nut exposed on the large hole 8 side An operating hole 9 into which a tool can be engaged is formed on the outer end surface of the tool 2.

A hole 10 is bored in the side of the pipe 3 facing the side of the seat body A and the back body B, and a round nut 4 having a brim-like end surface 4a is connected so that the end surface 4a is joined to the outer surface of the hole 10. hole 1 until the tip reaches the center of pipe 3.
0 and is fixed by welding.

Reference numeral 5 denotes a round rod-shaped elastic body made of rubber material, synthetic rubber material, or soft plastic material, and disk bodies 11a and 11b integral with bolts 6a and 6b protruding in the same axial direction are formed as special bolts,
Disc bodies 11a and 11b are strongly adhered to both end faces of the elastic body 5, respectively, so that the elastic body 5 is integrally sandwiched between both disc bodies 11a and 11b.

Therefore, screw the bolt 6b into the nut 4 in the pipe 3, insert the other bolt 6a into the support frame 1 through the small hole 7, and insert the nut 2 into the support frame 1 through the large hole 8. Align the screw hole 2a with the bolt 6a, engage the tool in the operating hole 9, and rotate the nut 2. Tighten the screw until the end surface of the nut 2 joins the inner surface of the small hole 7 side of the support frame 1. The installation can be completed by tightening the two places on both sides of the seat body A and the two places on both sides of the back body B in the same way.

When assembled in this way, as shown in Figure 2,
An extremely simple assembly structure is achieved in which only the elastic body 5 is exposed between the side surfaces of the seat body A and the back body B and the inner surface of the support frame 1.

Thus, the sitting body A and the back body B are supported on both sides by the elastic bodies 5, and the body responds to the dynamic changes due to the weight and body shape of the person who lowers his or her hips onto the sitting body A and leans back against the back body B. It can be changed in response to pressure and posture in any way, and can provide cushioning support.

In this way, the support frame integrated with the support legs has a flat shape with an elliptical cross section, as is clear from the above and the drawings, so it is smooth and sleek overall, but especially its lateral outer surface is flat. It is a flat surface, so it is conveniently and securely attached to the flat outer surfaces of the seat and back body of the present invention, and is of a very smart construction, and in attaching this frame to the seat body and back body. A round nut 2 is inserted into the small hole 7 from the large hole 8 drilled in the pipe.
Since the outer end surface of the frame is designed so that it does not protrude from the outer surface of the frame, the heads of screws and connecting members protrude at joints and bends, which are often seen in conventional products, making it difficult for the user to see. It is easy for the user to handle without causing fingers or clothes to get caught, and is extremely effective for this type of product, whose appearance and aesthetics are greatly influenced by commercial value. As for the connection with the elastic body 5 made of rubber material, soft plastic material, etc. interposed between the seat body A and the back body B and the frame 1, the outer surface of the frame formed in a flat shape as described above is Since the bolt 6a that protrudes from the elastic body is screwed into the screw hole 2a of the round nut 4, the elastic body is firmly attached. Furthermore, the other side disk-shaped outer end surface 11b of the elastic body 5 and the protruding bolt are locked to the outer surfaces of the seat body and the back body.
The back body B is formed by arranging a round pipe 3 around the inside, and a hole 10 is bored on the outside of the round pipe 3, and the side surface of the seat body, back body, etc. A round nut 4 having a flange-like end surface 4a is fitted between the cloth and the flange-like end surface 4a, so that a flat portion is formed on the flange-like end surface. When attaching the elastic body 5, the protruding bolt 6b is screwed into the round nut 4 of the seat and back body, and it comes into contact with the flat part formed integrally with the bolt 6b, so it is almost as sure as a tight fit. Since the structure is such that the elastic body 5 can fully exert its effects, the body pressure and posture of each person sitting on the chair can be adjusted according to the dynamic changes caused by the weight and body shape of the person sitting on the chair. This means that the body can change in response to various changes, as well as provide good cushioning and support, making it possible to create a chair that is comfortable to sit on and fits people who sit in a variety of ways. It is possible to have a compact structure in which only the elastic body is exposed between the seat body, etc. and the support frame, and both ends of the elastic body are reliably and firmly connected to the side of the seat body, etc. and the support frame side. It has the advantage that it can have a robust structure, and the entire assembly can be carried out very easily by threading bolts and nuts, and can be carried out suitably.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a perspective view of the chair, Fig. 2 is a sectional view of the main parts, Fig. 3 is an exploded view of Fig. 2, and Fig. 4 shows each of the parts shown in Fig. 3. FIG. 1a... Support leg, 1... Support frame, 2... Nut, A... Seat body, B... Back body, 3... Pipe,
4a... End face, 4... Nut, 5... Elastic body, 6
a, 6b...Bolt.

Claims (1)

[Scope of utility model registration request] Nuts 4 are inserted into the outer side of the pipe 3, which is inserted into the circumference of the seat body and the back body, or one of the seat bodies, in the form of a peripheral frame, so that the end surface is open and substantially coincident with the side surface of the seat body. One bolt 6b of the intervening body is constructed by integrally sandwiching an elastic body 5 made of rubber or soft plastic in the middle, and bolts 6a and 6b protruding from both ends of the elastic body 5. The other bolt 6a is inserted through an inner hole 7 formed in the support frame 1 formed integrally with the support leg, and is passed through the outer hole 8 communicating with the inner hole 7 from the outer surface of the support frame 1. A mounting support device for a seat body, etc. of a chair, characterized in that it is fixed by screwing onto a nut 2 which is inserted flush with the nut 2.