CN203619115U

CN203619115U - Office chair

Info

Publication number: CN203619115U
Application number: CN201320782973.6U
Authority: CN
Inventors: 左宗雷; 刘洋; 程军
Original assignee: Zhejiang Yongyi Furniture Co Ltd
Current assignee: UE Furniture Co Ltd
Priority date: 2013-12-02
Filing date: 2013-12-02
Publication date: 2014-06-04
Anticipated expiration: 2023-12-02

Abstract

The utility model discloses an office chair. The office chair comprises a chair back, wherein the chair back is connected with a supporting body which can be freely transformed between a headrest state or a waist rest state, two oscillating arms are respectively and symmetrically arranged on two sides of the chair back, one end of each oscillating arm is hinged with the supporting body, and the other end of each oscillating arm is hinged with the side surface of the chair back; the oscillating arms are overturned downwards so that the supporting body pushes against the lower middle part of the chair back to form a waist rest; the oscillating arms are overturned upwards so that the supporting body is arranged above the chair back to form a headrest, and a limiting device which is used for keeping the supporting body at a position above the chair back is arranged on the hinge position of each oscillating arm and the chair back. The office chair is provided with one supporting body, and the supporting body can be freely transformed between the headrest state or the waist rest state, so that the requirements of different people can be met and the cost is reduced; moreover, the supporting body can be made of different materials such as fabric or leather according to different requirements, and other fillers can fill in the supporting body so as to maintain the elasticity.

Description

A kind of office chair

Technical field

The utility model relates to swivel chair, office chair technical field, particularly a kind of office chair that can use flexibly.

Background technology

Existing office chair or be only provided with headrest, only being provided with waist leans on, and different people has different user demands, such as the office chair that is only provided with headrest cannot meet the demand that some people loosens, has a rest for waist, be only provided with the office chair that waist leans on and cannot meet again the demand that some people loosens, has a rest head.

Although lean on the demand that can meet part population with the office chair of headrest and be provided with waist simultaneously simultaneously, increase cost, can not accomplish the flexible and changeable demand of deacclimatizing other crowds.

Utility model content

The utility model has overcome existing deficiency in above-mentioned prior art, a kind of flexible and changeable office chair that can adapt to different crowd needs is provided, this office chair is provided with a supporter, this supporter can freely be changed by between two states at headrest or waist, thereby can meet the demand of different crowd, reduce again cost simultaneously.

The technical solution of the utility model is achieved in that

A kind of office chair, comprise the chair back, the described chair back is connected with one can lean on the supporter of freely changing between two states at headrest or waist, is provided with two swing arms in the bilateral symmetry of the chair back, one end and the supporter of swing arm are hinged, and the other end and the back seat sides of swing arm are hinged; The position, middle and lower part that swing arm upset downwards makes supporter be resisted against the chair back is leaned on to form waist; Swing arm is upwards overturn and is made supporter sentence formation headrest in chair back top position, is provided with uses so that supporter remains on the stopping means at chair back top position place in the hinged place of swing arm and the chair back.

As preferably, be respectively fixed with side plate in the both sides of supporter, be fixed with a lasso at side plate middle part, lasso centre is provided with screw, and one end of swing arm is buckled on lasso and by screw and side plate and fixes, and on screw, also cover has rubber washer.Thus, supporter can be done 360 degree rotations around swing arm.

As preferably, described stopping means comprises that guide pillar and entirety are the limit shaft of round pie, described limit shaft is fixed in back seat sides, guide pillar is in the catching groove that is arranged at the swing arm other end, offer the guide groove of circular arc along the peripheral region of limit shaft, guide groove includes and contacts the first end face coordinating and the second end face coordinating with guide pillar contacts side surfaces with guide pillar end face, the end at guide groove two ends forms respectively stopper section, be also provided with near the position of the guide groove upper end end one in order to block guide pillar and can produce elastically-deformable shell fragment, described shell fragment is arch, two flange are extended respectively in lower end at shell fragment to both sides, on limit shaft, offer the draw-in groove suitable with shell fragment shape, described shell fragment and flange are stuck in described draw-in groove, and shell fragment upper end protrudes from the second end face of guide groove, be provided with screw in limit shaft centre, the catching groove of the swing arm other end is fixed by screw and limit shaft after being buckled on limit shaft again, now guide pillar is along guide groove slip and by stopper section and shell fragment screens.Limit shaft be arranged so that swing arm is upwards overturn after, because the effect of shell fragment can be stuck in guide pillar the position, end stopper section of guide groove upper end, so just can make supporter remain on the top position of the chair back, use as headrest; In the time that needs lean on to use as waist, the swing arm of overturning downwards, the elastic force that makes guide pillar overcome shell fragment forces shell fragment to deform, thereby departs from the guide groove upper end end and move along guide groove, just can be used as waist and lean on to use when supporter turn to chair back lower end like this.

As preferably, described limit shaft is fixed on the chair back by least two screws.

As preferably, described guide groove is semicircle.

Adopt design concept of the present utility model and the beneficial effect of technique scheme to be:

Office chair of the present utility model is provided with a supporter, and this supporter can freely be changed by between two states at headrest or waist, thereby can meet the demand of different crowd, has reduced again cost simultaneously; And supporter can, according to the different different materials of need to selecting, such as cloth art or leather, and be filled other filler to keep elasticity in inside.

Accompanying drawing explanation

The use view of Fig. 1 when to be supporter use as headrest;

Fig. 2 use view when using that is supporter as waist;

Fig. 3 is the explosive view of the utility model chair back and supporter, swing arm;

Fig. 4 is the disassembled form schematic diagram of limit shaft and shell fragment;

Fig. 5 is the assembled state schematic diagram of limit shaft and shell fragment;

Fig. 6 is the disassembled form schematic diagram of guide pillar and limit shaft.

The specific embodiment

The specific embodiment of the present utility model is as follows:

Embodiment: a kind of office chair, as shown in Figures 1 to 3, comprise the chair back 1, the described chair back 1 is connected with one can lean on the supporter 2 of freely changing between two states at headrest or waist, be provided with two swing arms 3 in the bilateral symmetry of the chair back 1, one end of swing arm 3 and supporter 2 are hinged, and the other end of swing arm 3 and the chair back 1 side are hinged; The position, middle and lower part that swing arm 3 upset downwards makes supporter 2 be resisted against the chair back 1 is leaned on to form waist; Swing arm 3 is upwards overturn and is made supporter 2 sentence formation headrest in the chair back 1 top position.

Supporter 2 is as follows with the connected mode of swing arm 3: the both sides at supporter 2 are respectively fixed with side plate 4, be fixed with a lasso 5 at side plate 4 middle parts, lasso 5 centre are provided with screw 6, one end of swing arm 3 is buckled on lasso 5 and by screw 20 and side plate 4 and fixes, and on screw 20, also cover has rubber washer 7.Thus, supporter 2 can be around self doing 360 degree rotations.

Supporter 2, in the time using as headrest, for making supporter 2 can remain on the position of chair back top, is provided with and uses so that supporter 2 remains on the stopping means at the chair back 1 top position place with the hinged place of the chair back 1 in swing arm 3.

As shown in Fig. 3～6, described stopping means comprises that guide pillar 8 and entirety are the limit shaft 9 of round pie, described limit shaft 9 is fixed in back seat sides by least two screws, and guide pillar 8 is in the catching groove 10 that is arranged at the swing arm other end, and catching groove 10 shapes, size and limit shaft 9 match, and guide pillar 8 is along the direction setting perpendicular to limit shaft 9, offer the guide groove 11 of circular arc along the peripheral region of limit shaft 9, guide groove 11 is semicircle, guide groove 11 includes and contacts the first end face 13 coordinating with guide pillar end face 12 and contact the second end face 15 coordinating with guide pillar side 14, the end at guide groove 11 two ends forms respectively stopper section 16, be also provided with near the position of the guide groove upper end end one in order to block guide pillar 8 and can produce elastically-deformable shell fragment 17, described shell fragment 17 is arch, two flange 18 are extended to two lateral direction respectively in lower end at shell fragment 17, on limit shaft 9, offer the draw-in groove 19 suitable with shell fragment 17 shapes, described shell fragment 17 and flange 18 are stuck in described draw-in groove 19, and shell fragment 17 upper ends protrude from the second end face 15 of guide groove, be provided with screw 6 in limit shaft 9 centre, the catching groove 10 of swing arm 3 other ends is fixing with limit shaft 9 by screw 20 again after being buckled on limit shaft 9, now guide pillar 8 slides along the guide groove region of arrow institute mark in Fig. 5 and passes through stopper section 16 and shell fragment 17 screens.

Claims

1. an office chair, comprise the chair back, it is characterized in that: the described chair back is connected with one can lean on the supporter of freely changing between two states at headrest or waist, is provided with two swing arms in the bilateral symmetry of the chair back, one end and the supporter of swing arm are hinged, and the other end and the back seat sides of swing arm are hinged; The position, middle and lower part that swing arm upset downwards makes supporter be resisted against the chair back is leaned on to form waist; Swing arm is upwards overturn and is made supporter sentence formation headrest in chair back top position, is provided with uses so that supporter remains on the stopping means at chair back top position place in the hinged place of swing arm and the chair back.

2. a kind of office chair according to claim 1, it is characterized in that: the both sides at supporter are respectively fixed with side plate, be fixed with a lasso at side plate middle part, lasso centre is provided with screw, one end of swing arm is buckled on lasso and by screw and side plate and fixes, and on screw, also cover has rubber washer.

3. a kind of office chair according to claim 1, it is characterized in that: described stopping means comprises that guide pillar and entirety are the limit shaft of round pie, described limit shaft is fixed in back seat sides, guide pillar is in the catching groove that is arranged at the swing arm other end, offer the guide groove of circular arc along the peripheral region of limit shaft, guide groove includes and contacts the first end face coordinating and the second end face coordinating with guide pillar contacts side surfaces with guide pillar end face, the end at guide groove two ends forms respectively stopper section, be also provided with near the position of the guide groove upper end end one in order to block guide pillar and can produce elastically-deformable shell fragment, described shell fragment is arch, two flange are extended respectively in lower end at shell fragment to both sides, on limit shaft, offer the draw-in groove suitable with shell fragment shape, described shell fragment and flange are stuck in described draw-in groove, and shell fragment upper end protrudes from the second end face of guide groove, be provided with screw in limit shaft centre, the catching groove of the swing arm other end is fixed by screw and limit shaft after being buckled on limit shaft again, now guide pillar is along guide groove slip and by stopper section and shell fragment screens.

4. a kind of office chair according to claim 3, is characterized in that: described limit shaft is fixed on the chair back by least two screws.

5. a kind of office chair according to claim 3, is characterized in that: described guide groove is for semicircle.