CN201911670U

CN201911670U - Waist rest device for office chair

Info

Publication number: CN201911670U
Application number: CN 201020263828
Authority: CN
Inventors: 蔡轩进
Original assignee: Fuh Shyan Co Ltd
Current assignee: Fuh Shyan Co Ltd
Priority date: 2010-07-15
Filing date: 2010-07-15
Publication date: 2011-08-03
Anticipated expiration: 2020-07-15

Abstract

The utility model discloses a waist rest device for an office chair. The waist rest device comprises a backrest arranged on the chair, wherein the backrest also comprises a back rest part for the user to lean and waist rest parts pivoted at the lower end of the back rest part, wherein the waist rest parts comprise two symmetrical waist rest sheets which are pivoted and fixed together, the two waist rest sheets have the function of inward elastic swing and combination; meanwhile, a connecting seat is pivoted at the pivoting and fixing part between the two waist rest sheets and is pivoted together with an elastic support unit installed on the office chair, and then the waist rest parts have the function of elastic support, so that the waist of the user is subjected to proper elastic support, and the waist rest parts can support the waist of the user like a hand, therefore the waist of the user can be supported more appropriately and comfortably.

Description

The office chair lumbar support apparatus

Technical field

The waist that the utility model relates to a kind of office chair chair back is by the position, except the effect with resilient support, more makes waist be the design of two-piece type by the position, makes and occupant's waist can be embraced the person of holding.

Background technology

The modern treats may be long more than the time of staying at home in the time of office, and a comfortable office chair has just been played the part of considerable role, but long-time constant sitting posture can cause the generation of occupant's back pain also, and the at present commercially available waistband protector of declaring to prevent the back pain generation, its effect is not proved yet, and the over reliance waistband may bring minus effect, for the back pain that the computer operation user may cause because of long-time static sitting posture, then must consider the seat of selecting opening and closing suitable.

Generally speaking, trunk uprightly or sitting posture a little forward (this moment thigh with above the waist angle less than 90 degree), the pressure that intervertebral disc of lumbar vertebra bears is greater than stance, so long-time static sitting posture (lacking posture change), also cause fatigue easily, so we often see that after the sitting, people's health will move about, the discomfort of releiving.Back rest supports body wt partly simultaneously, it is stressed to reduce lumbar vertebrae, and muscle also can be loosened, so the support that makes waist obtain leaning against during work is very important to reducing lower back fatigue as far as possible.

Therefore, when seat was sat down too deeply, lumbar vertebrae can't touch the chair back and can not get supporting, or backrest then makes lumbar vertebrae obtain less than suitable support when too high or too low.

In addition, the designer is in order to allow the waist of the occupant on chair obtain proper supporting, be to be the utility model of 201020116243 " can along with the waist elasticity reclining apparatus of chair tool backrest lifting " just like application number, it is to comprise that one can adjust the elasticity supporter that articulates a tool elastic telescopic between backrest lower end highly and the chair tool, and this supporter is to comprise that the two-phase IPN closes, but and be provided with the spring drawing between the two and interior bar of the support of elasticity condensation and the outer bar of support, and make the two ends pin fixed part of elasticity supporter, the sheathed respectively spring that makes supporter and backrest swing towards predetermined party, and then except backrest can be done the different Height Adjustment, more make the waist of backrest lower end have the effect that elasticity leans on by the position, the occupant of different heights can both be met outside the dependence of ergonomics, more make occupant's waist obtain comfortable support, long-time occupant's pain in back and loin more can be alleviated; Though above-mentioned gimmick has allowed occupant's waist obtain well to support, but if more excellent design is arranged, can allow occupant's waist obtain more complete support, promptly be the purpose of the utility model maximum.

The utility model content

Therefore, obtain the effect of more complete support for the waist of realizing the aforementioned occupant of allowing, this is novel be allow termination under the chair back establish one can swing and the waist that shored by an elasticity supporter lean on portion, simultaneously this waist by portion be for about two waists be articulated by the sheet symmetry, and make two waists have the effect of elasticity clamping by sheet, allow occupant's waist except the support that is subjected to elastic force, the effect that more has holder to embrace.

The technical scheme that its technical problem that solves the utility model adopts is: a kind of office chair lumbar support apparatus, this device is to establish the chair back on the chair tool, but and this chair back includes that a back-rest and is connected under the back-rest and the waist of swing by portion, and make this waist establish an elasticity supporter by connecing between portion behind and the chair tool, wherein this waist by portion be comprise two left-right symmetry and pivot admittedly together waist and make this two waist be equiped with can allowing the spring of two waists by sheet by the clamping of sheet elasticity by the sheet pin fixed part.

Again, above-mentioned two waists of the present utility model articulate a joint chair again by locating pin fixed part between the sheet, make this joint chair and the elasticity supporter that is installed on the office chair be articulated again.

The beneficial effects of the utility model are, the waist of the chair back leans on portion except seeing through the elasticity supporter, occupant's waist can be subjected to outside the flexible support, and its two waist forms as holding in the palm the waist of embracing the occupant as the both hands by sheet, allows occupant's waist can obtain more comfortable dependence.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is a schematic perspective view of the present utility model;

Fig. 2 is a side view of the present utility model;

Fig. 3 is the decomposing schematic representation of the utility model chair back;

Fig. 4 is the side sectional view of the utility model chair back;

Fig. 5 is the A-A section enlarged diagram of Fig. 4.

1. chair tools among the figure, the 2. chair back, 21. back-rests, 211. grooves, 212. back of the body lids, 22. waists are by portion, and 221. waists are by sheet, the solid seat of 222,223. pivots, 224. pivots, 225.T word portion, 226. pivots, 227. joint chairs, 228. springs, 3. elasticity supporter.

The specific embodiment

See also Fig. 1,2 show, chair tool 1 of the present utility model is provided with a chair back 2, and between the chair back 2 lower ends and chair tool 1, if be linked in therebetween by an elasticity supporter 3, and this chair back 2 comprises a back-rest 21, and one the waist that is connected to back-rest 21 lower ends by portion 22, and Fig. 3 and for example, shown in 4, wherein this waist comprises again that by portion 22 the symmetrical waist in two left and right sides is by sheet 221, and make this two waist by on the sheet 221 next-door neighbour limits, the place, below, be installed with the solid seat 222 of relative pivot respectively, 223, and the solid seat 222,223 of two relative pivots of top is established to be worn by a pivot 224 and is lumped together, and this pivot 224 extends upward in its terminal T word portion 225 that forms simultaneously, and locate behind in the lower end of these T word portion 225 pairing back-rests 21, be arranged with one and can hold the groove 211 of T word portion 225, and establish a back of the body and cover 212 and can be locked in groove 211 places, and then T word portion 225 can not broken away from for outside the groove 211, and allow pivot 224 can carry out the swing of ground, front and back, even waist can be done the wobbling action of front and back by portion 22.

In addition, two waists are by the solid seat 222 of two pivots of sheet 221 belows, between 223, also be to wear He Shugu by another pivot 226, and establish a joint chair 227 again more in addition also simultaneously through the solid seat 222 of this pivot 226 and this two pivot, 223 wear and lump together, the opposite side of this joint chair 227 then is that the end with aforesaid elasticity supporter 3 is articulated, the other end of this elasticity supporter 3 then is the book office that pivot is fixed in chair tool 1 correspondence, enable to see through this elasticity supporter 3 and hold on this waist, allow waist lean on portion 22 to have the effect of resiliency supported by portion 22.

In addition, solid two waists of above-mentioned pivot are by the solid seat 222 of the upper and lower pivot of sheet 221, on 223, wear each pivot 224 that closes therebetween, on 226, be arranged with several springs 228 simultaneously, and make the two ends pin of each spring 228 respectively be resisted against the solid seat 222 of pivot of corresponding position, on 223, and then allow two waists have the effect (showing) of inside elastic closure by sheet 221 as Fig. 5.

Therefore, when occupant on chair tool 1 and its waist rests on this waist by in the portion 22 time, this waist is subjected to the pushing tow of elasticity supporter 3 by portion 22 behind because of it, allow waist lean on outside portion 22 can keep fitting on occupant's the waist tightly, and waist more can be held occupant's waist as embracing as the both hands by two waists of portion 22 by sheet 221, makes occupant's waist more feel proper and comfortable.

Claims

1. office chair lumbar support apparatus, it is characterized in that, this device is to establish the chair back on the chair tool, but and this chair back includes that a back-rest and is connected under the back-rest and the waist of swing by portion, and make this waist establish an elasticity supporter by connecing between portion behind and the chair tool, wherein this waist by portion be comprise left-right symmetry and pivot admittedly together two waists and make two waists be equiped with can making the spring of two waists by sheet by the clamping of sheet elasticity by the pin fixed part of sheet.

2. office chair lumbar support apparatus according to claim 1, it is characterized in that, this two waist is located upper and lower by the next-door neighbour relative edge of sheet, be installed with respectively relatively and respectively and wear the solid seat of He Shugu pivot together with a pivot, and with being arranged with spring on each pivot season, and the two ends pin that makes spring is resisted against respectively on the solid seat of corresponding pivot, and then orders about the effect that two waists have elasticity and close by sheet.

3. office chair lumbar support apparatus according to claim 1, it is characterized in that this two waist is by sheet below pivot together the solid seat of two pivots admittedly, its pivot is worn simultaneously again and is closed on another joint chair, allow this joint chair and elasticity supporter articulate, the other end of elasticity supporter then is that pivot is fixed on the chair tool.

4. office chair lumbar support apparatus according to claim 1, it is characterized in that, this two waist is by sheet top pivot together the solid seat of two pivots admittedly, its pivot extends upward and forms a T word portion in the upper end, then be arranged with a groove that can be installed with this T word portion corresponding to the back-rest part, then at groove locking one back of the body lid and T word portion can not deviate from.