CN201019313Y

CN201019313Y - Back of chair

Info

Publication number: CN201019313Y
Application number: CNU2007200058169U
Authority: CN
Inventors: 黄舜
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-02-27
Filing date: 2007-02-27
Publication date: 2008-02-13
Anticipated expiration: 2017-02-27

Abstract

Disclosed is a chair-back of seat, wherein a vertical chair-back support is arranged at one side of the seat cushion, two support brackets corresponding to each other in horizontal direction are arranged on the chair-back support; the central part of two fixed seat which can elastic flexural distort can be movably combined to the support bracket of the chair-back support, and the peripheral two fixed seat can be combined to the central back side of the chair-back who presents a symmetric figure. The two chair-backs can flexibly adjust taking fixed seat (support bracket of the chair-back support) as a fulcrum according to the external force, therefore having different covering and supporting effect.

Description

Backrest

Technical field

The utility model is meant a kind of different antiforms of complying with especially about the backrest of seat, adjusts the backrest of wrapped position.

Background technology

Mostly existing backrest is one-body molded, therefore, though can be at some specific group or most user's antiform and make suitable relatively shaped design, in the hope of satisfying the user demand of above-mentioned group;

Yet, because the difference on consumer's build and the stature, its back shape also has obvious difference, the real application demand that is difficult to satisfy different build consumers of the structure of the single backrest of above-mentioned tradition, comfortableness when therefore tending to influence backrest forms the defective in the practical application.

Novel content

Main purpose of the present utility model is to provide a kind of can adjust angle and the shape that coats health automatically according to user's back size shape, to produce the preferable backrest that leans against comfortableness.

The utility model is for achieving the above object and effect, and its practiced technical scheme comprises: a back bracket, uprightly be incorporated into an avris of a seat cushion, and be provided with two horizontal corresponding bearings in this back bracket; Two backrests have symmetrical shape; Two holders, the characteristic of tool elastic springing makes this two holder be incorporated into the backrest rear side with periphery respectively, and can suitably be incorporated into versatilely on the bearing of this back bracket with the position, stage casing.

The beneficial effects of the utility model are: this two backrest can be that fulcrum is adjusted flexibly with holder (bearing of back bracket), thereby produce different coating support effects with the external force effect, thereby satisfies different build consumers' application demand.

Description of drawings

Fig. 1 is a structure decomposition map of the present utility model.

Fig. 2 is an entire combination schematic diagram of the present utility model.

Fig. 3 is a combination part cutaway view of the present utility model.

Fig. 4 is a backrest adjustment action schematic diagram of the present utility model.

[primary clustering symbol description]

1..... the following portion of back bracket 11....

12.... the polygonal protuberance 122 of bearing 121..., 31... screw

2..... holder 21.... side opening 211... backrest bolt

22.... central perforation 23.... cage bolt 24.... polygonal opening

3..... backrest 4..... seat cushion

The specific embodiment

Fig. 1 is a structure decomposition map of the present utility model, by its entire combination schematic diagram and combination part profile with reference to Fig. 2-3, can clearly find out, the utility model mainly comprises: back bracket 1, holder 2 and backrest 3 etc. are partly, wherein, this back bracket 1 is provided with portion 11 in bottom transverse, can be for seat cushion 4 one avris that are incorporated into seat, make this back bracket 1 be vertical and be arranged at this seat cushion 4 edges, then be provided with two horizontal corresponding bearings 12 in back bracket 1 top, establish a polygonal protuberance 121 on each bearing 12, and provide a screw 122 in these polygonal protuberance 121 central authorities, two holders 2 are made strip shape body with the tool elastomeric material, its stage casing has been horizontally set with a central perforation 22, and in these central authorities' perforation 22 1 distolateral polygonal openings 24 that are provided with, make this polygonal opening 24 be sleeved on the polygonal protuberance 121 of back bracket 1, and run through this central authorities' perforation 22 with a cage bolt 23, and be screwed in this screw 122, this holder 2 is incorporated on the bearing 12 of this back bracket 1, in holder 2 outer ends or periphery be provided with several side openings 21, two backrests 3 have the shape of symmetry, be provided with the side opening 21 that several screws 31 correspond respectively to holder 2 in its dorsal part, can run through this side opening 21 for several backrest bolts 211, and be screwed in the screw 31 on the backrest 3, this backrest 3 is mutually combined with holder 2.

Fig. 4 is a backrest adjustment action schematic diagram of the present utility model, by shown in this figure as can be known, when external force (as: user reclines with the back) acts on two backrests 3, because each backrest 3 is to be arranged on the bearing 12 of back bracket 1 by holder 2, utilize this holder 2 to have the characteristic of stressed generation elastic springing, make each backrest 3 can adjust wrapped position and angle,, use producing preferable support comfortableness so that form best applying with this user back according to user's back shape.

Hence one can see that, and backrest of the present utility model really has automatic adjustment wrapped position, carries Rise the effect of overall comfort.

Claims

1. backrest, it is characterized in that: it comprises at least:

One back bracket, it uprightly is incorporated into an avris of a seat cushion, is provided with two horizontal corresponding bearings on this back bracket;

Two backrests, it has the shape of symmetry;

The holder of two tool elastic springing characteristics, this two holder is incorporated into the backrest rear side with periphery respectively, suitably is incorporated into versatilely on the bearing of this back bracket with the position, stage casing.

2. backrest according to claim 1, it is characterized in that: the bearing central authorities of this back bracket provide a screw, this holder is provided with a central perforation at relative position, and a cage bolt runs through this central authorities' perforation and is screwed in this screw, and this holder is incorporated on the bearing of this back bracket.

3. as backrest as described in the claim 2, it is characterized in that: the bearing of this back bracket is provided with a polygonal protuberance at the screw periphery, this holder should be provided with the together polygonal opening of shape by central authorities' perforation periphery relatively, this polygonal opening is sleeved on polygonal protuberance, forms the location between this backrest and the back bracket.

4. backrest according to claim 1, it is characterized in that: the periphery of this holder is provided with several side openings, and several backrest bolt-throughs are screwed in the corresponding screw that is provided with of backrest dorsal part and form combination.