CN2745439Y

CN2745439Y - Chair with device for preventing collision of seat plate and backplate

Info

Publication number: CN2745439Y
Application number: CN 200420150139
Authority: CN
Inventors: 何建国
Original assignee: 何文乐
Priority date: 2004-05-27
Filing date: 2004-05-27
Publication date: 2005-12-14
Anticipated expiration: 2014-05-27

Abstract

The utility model discloses a chair with device for preventing collision of seat plate and backplate, comprising a left foot rack, a right foot rack, a backplate which is connected with the left foot rack and the right foot rack, a seat plate which can rotate around an axis which is fixed to the foot rack, and two ear racks which are connected with the left foot rack and the right foot rack. The seat plate is provided on two ear racks through a turning device, a gag lever post is connected with the side of the seat plate, and an upper clamping rib and a lower clamping rib which limit the rotation scope for the gag lever post are on the ear racks. When a user sits on the seat plate, the limit function between the gag lever post and the upper clamping rib is used to prevent the mutual collision of the seat plate and the backplate effectively. The utility model is also provided with a table top panel, making the chair and the table top have the structure of one body. Thereby, the utility model saves a rack for supporting the panel and reduces the installation cost.

Description

A kind of chair that prevents that seat board and backboard from colliding mutually

Technical field

The utility model relates to a kind of chair, particularly a kind of seat board faldstool.

Background technology

Existing market upper base plate faldstool 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 easy to use, but because when being sitting on the seat board, the seat board roof pressure is on backboard, thereby cause normal generation of seat board and backboard to be collided mutually, damage product easily.

Summary of the invention

In order to overcome the deficiencies in the prior art, the utility model provides a kind of chair that prevents that seat board and backboard from colliding mutually.

The technical scheme that its technical problem that solves the utility model adopts is:

A kind of chair that prevents that seat board and backboard from colliding mutually, the seat board that it comprises left and right sides foot rest, be connected the backboard on the foot rest of the left and right sides and can rotate around the axle that is fixed on the foot rest, be connected with the ear frame on the foot rest of the left and right sides, seat board is installed on the two ear framves by slewing equipment, the side of seat board is connected with gag lever post, the upper clamp bar of restricted gag lever post slewing area and lower clamp bar on the ear frame; Described upper clamp bar is the convex tendon that ear frame edge extends out; Described slewing equipment comprises the sleeve on the side that is fixed on the axle on the ear frame and is fixed on seat board, and described sleeve is installed on the axle, and can rotate around the axis; Described gag lever post is wrapped with and plays the crashproof material of shape: foot rest top, the described left and right sides is provided with two cross bars that stretch backward, and the desktop panel is installed on the cross bar; Described backboard and seat board surface are designed according to the body line.

The beneficial effects of the utility model are: when the user when chair gets up, seat board folds on the backboard of platform chair because of the gravity effect, owing to be connected with gag lever post in the side of seat board, the upper and lower card muscle of restricted gag lever post slewing area on the ear frame, when the user is sitting on the seat board, use the position-limiting action between gag lever post and the upper clamp bar, effectively prevented the mutual collision that seat board and backboard take place; Upper clamp bar is the convex tendon that ear frame edge extends out, and the design effectively is hidden in slewing equipment in the two ear framves, and the outward appearance that makes product is create an aesthetic feeling more; 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;

The A place of Fig. 2 split structural representation when Fig. 3 was the utility model seat board folded state;

The A place of Fig. 2 split structural representation when Fig. 4 was the utility model seat board deployed condition.

The specific embodiment

With reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4, a kind of chair that prevents that seat board and backboard from colliding mutually, it comprises left and right sides foot rest 1, be connected the backboard 3 on the left and right sides foot rest 1 and can rotate 90 ° seat board 2 around being fixed on axle 6 on the ear frame 11, be connected with ear frame 11 on the left and right sides foot rest 1, seat board 2 is installed on the two ear framves 11 by slewing equipment, the side of seat board 2 is connected with gag lever post 21, the upper and

lower card muscle

4,5 of restricted gag lever post 21 slewing areas on the ear frame 11; When the user is sitting in seat board 2, use the position-limiting action between gag lever post 21 and the card muscle 4, effectively prevented the mutual collision that seat board 2 and backboard 3 take place, and card muscle 5 limited seat board 2 can be around the rotation of 90 ° in axle 6 works.In order to prevent that gag lever post 21 and card muscle 4 from rigid collision taking place, gag lever post 21 can be enclosed with outside and play the crashproof material of shape., the convex tendon that upper clamp bar 4 of the present utility model extends out for ear frame 11 edges, the design effectively is hidden in slewing equipment in the two ear framves, and the outward appearance that makes product is create an aesthetic feeling more.

Described slewing equipment comprises the sleeve 22 on the side that is fixed on the axle 6 on the ear frame 11 and is fixed on seat board 2; described sleeve 22 is installed on the axle 6; and can rotate around axle 6; this product uses the gravity effect of seat board 2 to fold on the backboard 3 of platform chair; certainly, slewing equipment can also adopt other common frame for movement, no matter thereby use which kind of mode; as long as it reaches technique effect of the present utility model with essentially identical means, all should belong to protection domain of the present utility model.

The utility model can be set up two cross bars 7 that stretch backward at foot rest 1 top, desktop panel 8 is installed on the cross bar 7, desktop panel 8 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.Backboard 3 designs according to the body line with seat board 2 surfaces, 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, thereby is widely used in public places such as conference hall, cinema.

Claims

A kind of chair that prevents that seat board and backboard from colliding mutually, the seat board (2) that it comprises left and right sides foot rest (1), is connected the backboard (3) on the left and right sides foot rest (1) and can rotates around spool (6) that are fixed on the foot rest (1), it is characterized in that: be connected with ear frame (11) on the left and right sides foot rest (1), seat board (2) is installed on the two ear framves (11) by slewing equipment, the side of seat board (2) is connected with gag lever post (21), and ear frame (11) is gone up the upper clamp bar (4) and the lower clamp bar (5) of restricted gag lever post (21) slewing area.
2. a kind of chair that prevents that seat board and backboard from colliding mutually according to claim 1 is characterized in that: the convex tendon that described upper clamp bar (4) extends out for ear frame (11) edge.
3. a kind of chair that prevents that seat board and backboard from colliding mutually according to claim 1, it is characterized in that: described slewing equipment comprises the sleeve (22) on axle (6) that is fixed on the ear frame (11) and the side that is fixed on seat board (2), described sleeve (22) is installed on the axle (6), and can rotate around axle (6).
4. a kind of chair that prevents that seat board and backboard from colliding mutually according to claim 1 is characterized in that: described gag lever post (21) is wrapped with and plays the crashproof material of shape.
5. a kind of chair that prevents that seat board and backboard from colliding mutually according to claim 1 is characterized in that: described left and right sides foot rest (1) top is provided with two cross bars (7) that stretch backward, and desktop panel (8) is installed on the cross bar (7).
6. a kind of chair that prevents that seat board and backboard from colliding mutually according to claim 1 is characterized in that: described backboard (3) designs according to the body line with seat board (2) surface.