CN103610340B

CN103610340B - A kind of office chair

Info

Publication number: CN103610340B
Application number: CN201310637445.6A
Authority: CN
Inventors: 左宗雷; 刘洋; 程军
Original assignee: UE Furniture Co Ltd
Current assignee: UE Furniture Co Ltd
Priority date: 2013-12-02
Filing date: 2013-12-02
Publication date: 2016-06-22
Anticipated expiration: 2033-12-02
Also published as: CN103610340A

Abstract

The invention discloses a kind of office chair, including the chair back, the described chair back be connected to one can between headrest or two states of Lumbar the supporter that freely change, be symmetrically arranged on two with two swing arms at the chair back, one end of swing arm is hinged with supporter, and the other end of swing arm is hinged with back seat sides；Swing arm downwardly turns over and makes supporter be resisted against the position, middle and lower part of the chair back to form Lumbar；Swing arm is flipped up making supporter be in chair back top position and sentences formation headrest, is provided with the stopping means making supporter be maintained at chair back top position place in the hinged place of swing arm Yu the chair back。The office chair of the present invention is provided with a supporter, and this supporter freely can be changed between headrest or two states of Lumbar, such that it is able to meet the demand of different crowd, reduces again cost simultaneously；And supporter can need to select different materials, such as cloth art or leather according to different, and it is filled with other implant to keep elastic。

Description

A kind of office chair

Technical field

The present invention relates to swivel chair, office chair technical field, particularly to a kind of office chair that can use flexibly。

Background technology

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

Although and the office chair being simultaneously provided with Lumbar and headrest can meet the demand of part population simultaneously, but adding cost, it is impossible to enough accomplish the flexible and changeable demand deacclimatizing other crowds。

Summary of the invention

Instant invention overcomes deficiency existing in above-mentioned prior art, provide a kind of flexible and changeable office chair being adapted to different crowd needs, this office chair is provided with a supporter, this supporter freely can be changed between headrest or two states of Lumbar, such that it is able to meet the demand of different crowd, reduce again cost simultaneously。

The technical scheme is that and be achieved in that:

A kind of office chair, including the chair back, the described chair back be connected to one can between headrest or two states of Lumbar the supporter that freely change, be symmetrically arranged on two with two swing arms at the chair back, one end of swing arm is hinged with supporter, and the other end of swing arm is hinged with back seat sides；Swing arm downwardly turns over and makes supporter be resisted against the position, middle and lower part of the chair back to form Lumbar；Swing arm is flipped up making supporter be in chair back top position and sentences formation headrest, is provided with the stopping means making supporter be maintained at chair back top position place in the hinged place of swing arm Yu the chair back。

As preferably, being respectively fixed with side plate in the both sides of supporter, being fixed with a lasso in the middle part of side plate, lasso centre is provided with screw, and one end of swing arm is buckled on lasso and is fixed by screw and side plate, is also cased with rubber washer on screw。Thus, supporter can do 360 degree of rotations around swing arm。

As preferably, described stopping means includes guide pillar and the overall limit shaft in round pie, described limit shaft is fixed in back seat sides, guide pillar is in the catching groove being arranged at the swing arm other end, peripheral region along limit shaft offers the guide groove of circular arc, guide groove includes and contacts the first end face coordinated and the second end face coordinated with guide pillar contacts side surfaces with guide pillar end face, the end at guide groove two ends forms stopper section respectively, one it is additionally provided with in order to that block guide pillar and elastically-deformable shell fragment can be produced in the position near the guide groove upper end end, described shell fragment is domed, extend two flange respectively to both sides in the lower end of shell fragment, limit shaft offers 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, it is provided with screw in limit shaft centre, the catching groove of the swing arm other end is fixed again through screw and limit shaft after being buckled on limit shaft, now guide pillar slides along guide groove and passes through stopper section and shell fragment screens。After the setting of limit shaft makes swing arm be flipped up, owing to guide pillar can be stuck in the position, end stopper section of guide groove upper end by the effect of shell fragment, supporter so just can be made to be maintained at the top position of the chair back, use as headrest；When needs use as Lumbar, downwardly turn over swing arm, make guide pillar overcome the elastic force of shell fragment to force shell fragment to deform, thus departing from the guide groove upper end end and moving along guide groove, just can use as Lumbar when the upset of such supporter is to chair back lower end。

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

As preferably, described guide groove is semicircle。

Have employed the design concept of the present invention of technique scheme and provide the benefit that:

The office chair of the present invention is provided with a supporter, and this supporter freely can be changed between headrest or two states of Lumbar, such that it is able to meet the demand of different crowd, reduces again cost simultaneously；And supporter can need to select different materials, such as cloth art or leather according to different, and it is filled with other implant to keep elastic。

Accompanying drawing explanation

Fig. 1 is that supporter is as the use view rested the head on when using；

Fig. 2 is supporter use view when using as Lumbar；

Fig. 3 is the explosive view of the chair back of the present invention 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。

Detailed description of the invention

The specific embodiment of the present invention is as follows:

Embodiment: a kind of office chair, as shown in Figures 1 to 3, including the chair back 1, the described chair back 1 is connected to a supporter 2 freely can changed between headrest or two states of Lumbar, it is symmetrically arranged on two with two swing arms 3 at the chair back 1, one end of swing arm 3 is hinged with supporter 2, and the other end of swing arm 3 and the chair back 1 are hinged at；Swing arm 3 downwardly turns over and makes supporter 2 be resisted against the position, middle and lower part of the chair back 1 to form Lumbar；Swing arm 3 is flipped up making supporter 2 be in the chair back 1 top position and sentences formation headrest。

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

Supporter 2 is when using as headrest, for making supporter 2 can be maintained at the position above the chair back, is provided with the stopping means making supporter 2 be maintained at the chair back 1 top position place in the hinged place of swing arm 3 with the chair back 1。

As illustrated in figures 3-6, described stopping means includes guide pillar 8 and the overall limit shaft 9 in 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 being arranged at the swing arm other end, and catching groove 10 shape, size and limit shaft 9 match；And guide pillar 8 is to arrange along the direction being perpendicular to limit shaft 9, peripheral region along limit shaft 9 offers the guide groove 11 of circular arc, guide groove 11 is semicircle, guide groove 11 includes and contacts the first end face 13 coordinated with guide pillar end face 12 and contact the second end face 15 coordinated with guide pillar side 14, the end at guide groove 11 two ends forms stopper section 16 respectively, one it is additionally provided with in order to that block guide pillar 8 and elastically-deformable shell fragment 17 can be produced in the position near the guide groove upper end end, described shell fragment 17 is domed, two flange 18 are extended to two lateral direction respectively in the lower end of shell fragment 17, limit shaft 9 offers the draw-in groove 19 suitable with shell fragment 17 shape, described shell fragment 17 and flange 18 are stuck in described draw-in groove 19, and shell fragment 17 upper end protrudes from the second end face 15 of guide groove, it is provided with screw 6 in limit shaft 9 centre, the catching groove 10 of swing arm 3 other end is fixed with limit shaft 9 again through screw 20 after being buckled on limit shaft 9, now slide and pass through stopper section 16 and shell fragment 17 screens in guide pillar 8 guide groove region of arrow institute labelling along Fig. 5。

Claims

1. an office chair, including the chair back, it is characterized in that: the described chair back is connected to a supporter freely can changed between headrest or two states of Lumbar, be symmetrically arranged on two with two swing arms at the chair back, one end of swing arm is hinged with supporter, and the other end of swing arm is hinged with back seat sides；Swing arm downwardly turns over and makes supporter be resisted against the position, middle and lower part of the chair back to form Lumbar；Swing arm is flipped up making supporter be in chair back top position and sentences formation headrest, is provided with the stopping means making supporter be maintained at chair back top position place in the hinged place of swing arm Yu the chair back。

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

3. a kind of office chair according to claim 1, it is characterized in that: described stopping means includes guide pillar and the overall limit shaft in round pie, described limit shaft is fixed in back seat sides, guide pillar is in the catching groove being arranged at the swing arm other end, peripheral region along limit shaft offers the guide groove of circular arc, guide groove includes and contacts the first end face coordinated and the second end face coordinated with guide pillar contacts side surfaces with guide pillar end face, the end at guide groove two ends forms stopper section respectively, one it is additionally provided with in order to that block guide pillar and elastically-deformable shell fragment can be produced in the position near the guide groove upper end end, described shell fragment is domed, extend two flange respectively to both sides in the lower end of shell fragment, limit shaft offers 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, it is provided with screw in limit shaft centre, the catching groove of the swing arm other end is fixed again through screw and limit shaft after being buckled on limit shaft, now guide pillar slides along guide groove and passes through stopper section and shell fragment screens。

4. a kind of office chair according to claim 3, it is characterised 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, it is characterised in that: described guide groove is semicircle。