CN202269696U

CN202269696U - Chair

Info

Publication number: CN202269696U
Application number: CN201120359951XU
Authority: CN
Inventors: 程宽; 李颜琳; 张秋子
Original assignee: Zhejiang University ZJU
Current assignee: Zhejiang University ZJU
Priority date: 2011-09-23
Filing date: 2011-09-23
Publication date: 2012-06-13
Anticipated expiration: 2021-09-23

Abstract

The utility model discloses a chair. The chair comprises a chair back, a chair seat and chair legs, wherein the lower half sections of the chair legs are provided with hollow cavities, the bottom parts of the hollow cavities are provided with openings, the inner part of each hollow cavity is provided with a spring and a universal wheel in sequence from up to down, the universal wheel comprises a support and a wheel, one end of the spring is fixedly connected with the top part of each hollow cavity, and the other end of the spring is fixedly connected with the support of the universal wheel. The chair disclosed by the utility model has the advantages that the wheels at the lower parts of the chair legs are telescopic, and the chair can be guaranteed to be stable and not to slide when a user sits on the chair; and the friction between the chair legs and the ground can be avoided when the user stands up or the chair is not used, and the chair can be conveniently moved. The chair disclosed by the utility model can be widely used for a household, an office, and the like.

Description

A kind of chair

Technical field

The utility model relates to a kind of thing to sit on, and more particularly, the utility model relates to a kind of chair.

Background technology

At present, current chairs has two types, and a kind of is shank band roller, and a kind of is that shank is not with roller.When people want that when shank was not stood up with the chair of roller, people's thigh can eject a segment distance backward with chair, at this moment the chair leg not only causes very big friction infringement to the floor, and the noise of friction is also very ear-piercing; Simultaneously, be not inconvenient to move with the chair of roller.And the chair of existing band roller, though convenient moving, after the people took, chair also was easy to slide, instability.

Like the Chinese patent Granted publication number is CN 2889012Y, and Granted publication day is the patent application case of 2007-04-18, discloses a kind of Five-wheel rotatable chair pin; Comprise the sleeve pipe with collar aperture and five legs that evenly distribute and be fixed in the sleeve pipe excircle and outwards stretch, the front end bottom of leg is provided with the roller installing hole, and its weak point is; Described Five-wheel rotatable chair pin; After existing the people to take equally, chair slides easily, problem of unstable.

Summary of the invention

The purpose of the utility model is to overcome in the prior art people when conventional chair is got up, and the chair leg causes damage to ground easily, and the chair of existing band roller; After the people takes; Chair is easy to slide, and unsettled deficiency guarantees stable when a kind of taking a seat is provided; And the user plays immediately that the chair leg is little to the friction on ground, the convenient chair that moves when nobody takes a seat.

In order to solve the problems of the technologies described above, the utility model takes following proposal to be achieved: a kind of chair is provided, comprises the chair back; Seat support, the chair leg, second is truncated into the hollow cavity of bottom opening said chair leg; Spring, universal wheel are installed in the cavity from top to bottom successively; Said universal wheel comprises support and wheel, and an end of said spring is fixedly connected with the cavity top, and the other end is fixedly connected with caster bracket.The chair of present design; The universal wheel of its chair leg bottom is connected with spring, and when the user occupied this chair, the spring of chair shank was owing to the pressure of receiving gravity compresses; Make among the universal wheel income chair leg that is connected in spring bottom, can guarantee that chair is stable and do not slide; When rise immediately or nobody when taking a seat, spring loses pressure and pulley is ejected the chair leg, has avoided the friction on chair shank and ground, can easily move chair again, this Chair structure is simple, and is with low cost.

As a kind of preferred version of such scheme, said universal wheel is plate universal wheel.Adopt plate universal wheel, when universal wheel and spring were affixed, contact-making surface was big, and it is firm to connect.

As a kind of preferred version of such scheme, said chair back inner face is vertically arranged with two raised lines.When people leaned against on the raised line, raised line can play the effect of massage.

As a kind of preferred version of such scheme, said wheel is processed by rubber or metal material.Rubber or metal wheel are more wear-resisting, long service life, and little with the frictional force on ground.

The beneficial effect of the utility model is:

1. when taking a seat among the roller indentation chair leg, can guarantee that chair is stable and do not slide.

2. stand up or nobody when taking a seat roller stretch out outside the chair leg, avoided the friction on chair shank and ground, can easily move chair again.

3. simple in structure, with low cost.

Description of drawings

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

Fig. 2 is a kind of structural representation of the chair shank of the utility model.

Among the figure: the chair back 1 seat support 2 chair legs 3 springs 4 supports 5 wheels 6 raised lines 7.

The specific embodiment

Below in conjunction with the accompanying drawing and the specific embodiment the utility model is described in further detail: shown in Fig. 1 and Fig. 2, a kind of chair of present embodiment comprises the chair back 1; Seat support 2, chair leg 3, second is truncated into the hollow cavity of bottom opening said chair leg 3; Spring 4, universal wheel are installed in the cavity from top to bottom successively, and said universal wheel comprises support 5 and wheel 6, and an end of said spring 4 is fixedly connected with the cavity top; The other end is fixedly connected with caster bracket 5; During static load, the wheel 6 of universal wheel stretches out outside chair leg 3, contacts with ground; During dynamic load, in the wheel 6 withdrawal chair legs 3, chair leg 3 directly contacts with ground.Said universal wheel is plate universal wheel.The said chair back 1 inner face is vertically arranged with two raised lines 7.Said wheel 6 is processed by rubber or metal material.Said chair also is provided with handrail, and handrail is provided with foam-rubber cushion, and it is more comfortable to let the people be seated.

When the user was sitting on the chair, the spring 4 of chair shank was under pressure and compresses, and made among the wheel 6 income chair legs 3 that are connected in the spring bottom.When rise immediately or nobody when taking a seat, spring 4 loses pressure and wheel 6 is ejected chair leg 3.With regard to not feeling unstable, play the friction of immediately also having avoided chair shank and ground when the user takes a seat like this because of chair leg pulley, and convenient moving.

Should explain be; Above embodiment is only unrestricted in order to the technical scheme of explanation the utility model; The technical scheme of the utility model is made amendment or is equal to replacement; And do not break away from the spirit and the scope of the utility model technical scheme, all should be encompassed in the middle of the claim scope of the utility model.

Claims

1. a chair comprises the chair back, seat support; The chair leg is characterized in that, second is truncated into the hollow cavity of bottom opening said chair leg; Spring, universal wheel are installed in the cavity from top to bottom successively; Said universal wheel comprises support and wheel, and an end of said spring is fixedly connected with the cavity top, and the other end is fixedly connected with caster bracket.

2. a kind of chair according to claim 1 is characterized in that, said universal wheel is plate universal wheel.

3. a kind of chair according to claim 1 and 2 is characterized in that, said chair back inner face is vertically arranged with two raised lines.

4. a kind of chair according to claim 1 and 2 is characterized in that said wheel is processed by rubber or metal material.