CN2669714Y

CN2669714Y - Chair with self-turnover seat board

Info

Publication number: CN2669714Y
Application number: CNU2004200145394U
Authority: CN
Inventors: 何建国
Original assignee: 何文乐
Priority date: 2004-01-05
Filing date: 2004-01-05
Publication date: 2005-01-12
Anticipated expiration: 2014-01-05

Abstract

The utility model discloses a chair with a self-turnover seat board, comprising a foot rack, a back board provided on the foot rack, a seat board rotating around a shaft which is fixed on the foot rack, an ear rack connected to the foot rack and a spring seat fixedly connected to the ear rack through a bolt. A shaft combined with the ear rack as one body respectively penetrates a spring on the spring seat and a connecting rack connected to the seat board. Both ends of the spring are respectively fixed to the spring seat and the connecting rack. The utility model reaches a comfortable effect for user without sitting inclined forward, and the utility model is also provided with a table top panel to make the chair and the table top have the structure of one body, saving a rack for supporting the panel and reducing the installation cost.

Description

A kind of chair with the automatic turn over function of seat board

Technical field

The utility model relates to a kind of chair, particularly a kind of chair with the automatic turn over function of seat board.

Background technology

The chair with the automatic turn over function of seat board in the market normally moves forward the seat board central shaft, make center of gravity be positioned at the rear, because weight reason of unbalanced, seat board need not be affected on the backboard that just can fold into the platform chair, thereby for use, cleaning and maintenance provide convenience, but people's center of gravity when taking needs and must turn forward, and the time has been grown and can feel later tired.

Summary of the invention

In order to overcome the deficiencies in the prior art, the utility model provides a kind of simple in structure, chair with the automatic turn over function of seat board.

The technical scheme that its technical problem that solves the utility model adopts is: a kind of chair with the automatic turn over function of seat board, comprise foot rest, at the seat board that is provided with backboard on the foot rest and can rotates around the axle that is fixed on the foot rest, be connected with the ear frame on the foot rest, be bolted to connection spring base on the ear frame, with the ear frame be that the axle of one passes the spring on the spring base respectively and is connected link on the seat board, described both ends of the spring is separately fixed on spring base and the link; The spacing hole of restricted seat board slewing area on the described spring base is connected with the limited block that rotates in spacing hole on the link; Described foot rest top is provided with two cross bars that stretch backward, and the desktop panel is installed on the cross bar; On the inserted link that described backboard is plugged on foot rest links to each other; Described backboard and seat board surface are designed according to the body line.

The beneficial effects of the utility model are: the utility model adopts said structure, when the user when chair gets up, seat board is folding on the backboard of platform chair under the active force of spring, and user's seat that need not turn forward when using, thereby reaches comfortable effect; The utility model also is equipped with the desktop panel, and the structure that chair and desktop are become one is used for the support of support panel thereby saved, and reduces installation cost.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is a deployed configuration schematic diagram of the present utility model;

Fig. 3 is that the A of Fig. 2 is to schematic diagram;

Fig. 4 is the B place structure enlarged diagram of Fig. 3.

The specific embodiment

With reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4, a kind of chair with the automatic turn over function of seat board, comprise foot rest 1, be provided with backboard 3 on the foot rest 1 and can rotating 90 ° seat board 2 around being fixed on axle 7 on the foot rest 1, be connected with ear frame 13 on the foot rest 1, be bolted to connection spring base 9 on the ear frame 13, also it can be made of one structure in the middle of the reality, with spool 7 springs 10 and the link 8 that be connected seat board 2 on that respectively pass spring base 9 on of ear frame 13 for one, the spacing hole 11 of restricted seat board 2 slewing areas on the spring base 9, be connected with the limited block 12 that in spacing hole 11, rotates on the link 8, the use of limited block 12 and spacing hole 11 has guaranteed the rotation of seat board 2 around 90 ° in axle 7 works, elastomer block can be installed in two side at spacing hole 11, thereby prevents that limited block 12 from damaging with the rigid collision of spacing hole 11.When the user is sitting in seat board 2, the link 8 that is connected on the seat board 2 elongates spring 10, when when chair gets up, seat board 2 at auto-folder under the restoring force of spring 10 to the backboard 3 of platform chair, and user's seat that need not turn forward when using, thereby reach comfortable effect.

The utility model can be set up two cross bars 4 that stretch backward at foot rest 1 top, desktop panel 5 is installed on the cross bar 4, desktop panel 5 can be single or multiple lift or even drawer-type structure etc., the design makes the structure that chair and desktop become one, thereby when in lecture theater or conference hall, installing, only need utilize bolt that foot rest 1 is installed and get final product on the ground, be used for the support of support panel thereby saved, the reduction installation cost.The backboard 5 of this product adopts the mounting means that is plugged on the inserted link 6 that links to each other with foot rest 1, thereby reaches the purpose that makes things convenient for installation, maintenance, and backboard 5 and seat board 3 surfaces design according to the body line, makes people more comfortable in use.

The utility model is not limited to single use, and making in use to increase into a row two or three etc., because this product is simple in structure, reasonable in design, and has the seat board characteristics of upset automatically, thereby is widely used in public places such as conference hall, cinema.

Claims

1. chair with the automatic turn over function of seat board, comprise foot rest (1), at the seat board (2) that is provided with backboard (3) on the foot rest (1) and can rotates around spool (7) that are fixed on the foot rest (1), it is characterized in that being connected with on the foot rest (1) ear frame (13), be bolted to connection spring base (9) on the ear frame (13), pass the spring (10) on the spring base (9) respectively and be connected link (8) on the seat board (2) with the axle (7) of ear frame (13) for one, described spring (10) two ends are separately fixed on spring base (9) and the link (8).

2. a kind of Stairs chair according to claim 1 is characterized in that the upward spacing hole (11) of restricted seat board (2) slewing area of described spring base (9), is connected with the limited block (12) that rotates in spacing hole (11) on the link (8).

3. a kind of Stairs chair according to claim 1 is characterized in that described foot rest (1) top is provided with two cross bars (4) that stretch backward, is equipped with desktop panel (5) on the cross bar (4).

4. a kind of Stairs chair according to claim 1 is characterized in that described backboard (5) is plugged on the inserted link (6) that links to each other with foot rest (1).

5. a kind of Stairs chair according to claim 1 is characterized in that described backboard (5) and seat board (3) surface designs according to the body line.