CN201641146U

CN201641146U - Elastic waist leaning device capable of rising and falling along with chair backrest

Info

Publication number: CN201641146U
Application number: CN2010201162439U
Authority: CN
Inventors: 蔡轩进
Original assignee: Fuh Shyan Co Ltd
Current assignee: Fuh Shyan Co Ltd
Priority date: 2010-02-10
Filing date: 2010-02-10
Publication date: 2010-11-24
Anticipated expiration: 2020-02-10

Abstract

The utility model relates to an elastic waist leaning device capable of rising and falling along with a chair backrest, which comprises an elastic support unit which is telescopic elastically and is pivoted between the lower end of a height adjustable backrest and a chair; the support unit comprises a support inner rod and a support outer rod which mutually penetrate and can draw back by the drawing of a spring arranged therebetween; and springs for swinging the support unit and the backrest to a preset direction are respectively sleeved at the pivoting and fixing parts at both ends of the elastic support unit, therefore, the height of the backrest can be adjusted freely and the waist leaning part at the lower end of the backrest has elastic leaning function so that users of different heights can meet the human engineering leaning and the waits of users can be supported comfortably, thereby lightening the waist and back pain of users sitting for long time.

Description

Can be along with the waist elasticity reclining apparatus of chair tool backrest lifting

Technical field

The utility model is related be a kind of can be along with the waist elasticity reclining apparatus of chair tool backrest lifting, the backrest that mainly is the chair tool is except the height that can adjust dependence, and make that be provided with between the lower end of backrest and the chair tool can elastic telescopic and the elasticity supporter of elasticity pushing tow, and then make the waist of backrest can do flexible leaning to occupant's waist by the position.

Background technology

The modern treats in the time of office long more than the time of staying at home, a comfortable office chair is just being 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.

The utility model content

The purpose of this utility model provide a kind of can be along with the waist elasticity reclining apparatus of chair tool backrest lifting, make the freely structure of degree of heightening of backrest, and then make occupant's back and waist, obtain the support of best appropriateness, chair tool backrest can't allow occupant's back and waist obtain the suitable problem that highly leans in the known technology to solve.

For achieving the above object, what the utility model provided can be along with the waist elasticity reclining apparatus of chair tool backrest lifting, it is characterized in that, be to comprise that one is fixed on the chair tool and for the support unit that backrest is set, and make between support unit and the backrest and combining by a lifting positioning unit, and between chair tool and backrest lower end, establish by an elasticity supporter and be linked to therebetween, wherein:

This elasticity supporter be comprise that the two-phase IPN closes and in the support that flexible is moved bar with support outer bar, and in supporting, hang spring between the bar outside bar and the support and make both have the effect of elasticity condensation, and the lower ending pivot of bar was fixed in the book office on the chair tool in order was supported, support that the upper end of outer bar then is the book office that pivot is fixed in the backrest dorsal part, then again in supporting outside bar and chair tool and the support pin fixed part of bar and backrest be arranged with respectively and can make the spring of backrest towards the occupant.

Described can be along with the waist elasticity reclining apparatus of chair tool backrest lifting, wherein the middle place of bar has been installed with spring in this support, and the lower end that makes spring be hung on support on the bar, the upper end of spring then is to hang on to support on the outer bar, and then makes both have the effect of elasticity condensation.

Described can be along with the waist elasticity reclining apparatus of chair tool backrest lifting, wherein the flank of the outer bar of this support is provided with the slideway that runs through, and establishes one and wear axle and be through in the slideway and wear the upper end that closes bar in supporting simultaneously.

Described can be along with the waist elasticity reclining apparatus of chair tool backrest lifting, wherein this support unit is that the book office on the support body is provided with continuous positioning tooth, and makes the upper/lower terminal end terminal of this continuous positioning tooth be respectively equipped with closure and dial from portion;

This backrest, set up part jointly establishing the cunning that a two ends pivot is fixed in the backrest dorsal part corresponding to the set positioning tooth of support unit place, and be concaved with the fixing chlamydate recessed portion of closing corresponding to the positioning tooth place at the sliding part of setting up jointly, make recessed closing and form between portion and the covering and can wear the space of closing for support unit, but and make this recessed portion of closing solid elasticity of place's pivot be fastened on blocking assembly on arbitrary positioning tooth, and make blocking assembly and the recessed relative book office of portion that closes again, be respectively equipped with can be chimeric mutually caulking groove portion and tuck pointing portion, simultaneously the closure of this support unit with dial from portion can to the blocking assembly oppress or collude from, and make caulking groove portion between the two with tuck pointing portion is chimeric or disengaging.

The beneficial effects of the utility model are, allow backrest can do different Height Adjustment location, and allow the occupant of different heights can both obtain suitable and meet outside the dependence of ergonomics, more make the waist of backrest lower end have the effect that elasticity leans on by the position, the waist that more makes the backrest lower end is by also lifting thereupon of position, the effect that has resiliency supported simultaneously allows occupant's waist obtain more comfortable support.

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 the schematic diagram one of the utility model backrest adjustable bridge structure.

Fig. 3 is the schematic diagram two of the utility model backrest adjustable bridge structure.

Fig. 4 is the structural representation one of the utility model backrest lower end elasticity supporter.

Fig. 5 is the structural representation two of the utility model backrest lower end elasticity supporter.

Fig. 6 is the local enlarged diagram of the forward sight of the utility model backrest adjustable bridge structure.

Fig. 7 is the schematic diagram of the utility model backrest when rising to highest point.

Fig. 8 is the schematic diagram of the utility model backrest when dropping to bottom position.

Fig. 9 is that the utility model blocking assembly is by the schematic diagram after pushing aside.

Figure 10 is the illustrative view one of the utility model elasticity supporter.

Figure 11 is the illustrative view two of the utility model elasticity supporter.

Among the figure: 1 support unit, 11 positioning tooths, 12 closures, 13 groups from portion, 14 guide channels, 2 backrests, 20 pin fixed parts, the 21 sliding parts of setting up jointly, 210 pin fixed parts, the 211 recessed portions of closing, 212 cover the 213 protruding portions that lead, 214 tuck pointing portions, 22 blocking assemblies, 221 free ends, 222 caulking groove portions, 23 springs, 24 pin fixed parts, 3 elasticity supporter, 31 support interior bar, 311 conduits, 312 hook portions, 313 perforation, 32 springs, 33 springs, 34 support outer bar, 340 pin fixed parts, 341 slideways, 35 wear axle, 36 screw rods, 37 hinged arms, 38 springs, 4 pin fixed parts, 41 hinged arms.

The specific embodiment

The technical scheme that its technical problem that solves the utility model adopts is, comprise that one can adjust between the backrest lower end and chair tool of height, articulate the supporter of a tool elastic telescopic thrusting action, and this elasticity supporter is to comprise that but the two-phase IPN closes and is provided with spring between the two and draws and interior bar of the support of elasticity condensation and the outer bar of support, and the lower end and the upper end of supporting outer bar of interior bar are supported in order, the solid book office of difference pivot in chair tool and backrest correspondence, and at the sheathed respectively spring that makes supporter and backrest swing towards predetermined party of each pin fixed part.

Illustrate in greater detail below in conjunction with accompanying drawing.

See also Fig. 1,2 and shown in Figure 3, establish a support unit 1 on the utility model chair tool, and on this support unit 1, be provided with the backrest 2 that can slide up and down the location, and the support body that this support unit 1 is a ㄇ type, and respectively be provided with continuous positioning tooth 11 in the corresponding section, both sides of this support body, and make the end terminal of two ends up and down of this continuous positioning tooth 11, be respectively equipped with closure 12 and dial, and respectively be concaved with guide channel 14 in the both sides of support unit 1 again from portion 13.

In addition, this backrest 2 is corresponding to support unit 1 set positioning tooth 11 parts, if having the cunning of pin fixed part 210, two ends set up part 21 jointly, make by this pin fixed part 210 and set up part 21 pivots jointly and be fixed on the set pin fixed part 20 in backrest 2 dorsal part corresponding positions sliding, allow backrest 2 freely be swung, be concaved with the recessed portion 211 of closing at the sliding part 21 of setting up jointly corresponding to positioning tooth 11 places of support unit 1, establish one again again and can be covered on the recessed covering 212 fixing in the portion 211 of closing, and then make recessed closing form between portion 211 and the covering 212 and can wear the space of closing for support unit 1, and order covers 212 inboards and convexes with the protruding portion 213 that leads that can sleeve in the guide channel set on the support unit 1 14 again, the solid blocking assembly 22 that can freely swing of portion 21 places (being recessed portion 211 places of closing) pivot is closed in the cunning of positioning tooth 11 sides in the order position again simultaneously, and establish a spring 23 can be to blocking assembly 22 outside elasticity pushing tows, and then make free end 221 places of this blocking assembly 22, just in time can flexibly be embedded in corresponding on positioning tooth 11 set on arbitrary support unit 1; In addition, establish a caulking groove portion 222 on this blocking assembly 22 again, closing portion 21 (being recessed portion 211 places of closing) and locate then to be convexly equipped with a tuck pointing portion 214, when making blocking assembly 22 closed, make its caulking groove portion 222 can be embedded in the tuck pointing portion 214 and locate corresponding to sliding.

In addition, as Fig. 4, shown in Figure 5, the elasticity supporter 3 of an elasticity pushing tow is established in the position between backrest 2 lower ends and chair tool, promptly establish a pin fixed part 4 at chair tool book office, and the lower end dorsal part book office of backrest 2 also is provided with pin fixed part 24, the two ends of this elasticity supporter 3 promptly respectively pivot be fixed in pin fixed part 4, on 24, and this elasticity supporter 3 comprises that a lower ending pivot is fixed on the pin fixed part 4, and wear bar 31 in the support of closing by hinged arm 41, simultaneously wear a spring 32 at this hinged arm 41, allow and support interior bar 31 that the strength towards backrest 2 swings is arranged, and the middle place of bar 31 was provided with the conduit 311 that can be installed with spring 33 in order was supported again, and the lower end that makes spring 33 hang in the hook portion 312, and then the outer bar 34 of the support of establishing a hollow, make to wear for bar 31 in supporting and close and can do flexible action, and two flank correspondences of the outer bar 34 of this support are provided with slideway 341, establishing one again wears axle and 35 is through in the slideway 341, and wear in the perforation 313 of closing bar 31 upper ends in supporting, make simultaneously the upper end of spring 33 collude again being hung on and support outer bar 34 slightly on the screw rod 36 of upper end locking, and then allow the effect that has inside elasticity condensation in supporting between bar 31 and the outer bar 34 of support; Secondly, the upper end of the outer bar 34 of this support is provided with pin fixed part 340, and also be provided with pin fixed part 24 corresponding to backrest 2 dorsal part places, make two pin fixed

parts

340,24 to be worn and lump together by hinged arm 37, and a sheathed spring 38 on this hinged arm 37 allows the two ends of spring 38 flexibly be resisted against respectively on interior bar 34 of support and the backrest 2.

Therefore, as shown in Figure 6, when backrest 2 is desired to carry out the adjustment of height, as long as backrest 2 is upwards pushed away, can allow blocking assembly 22 spring that is subjected to the elasticity pushing tow and make its free end 221 be fastened on the positioning tooth 11 of diverse location, and then make backrest 2 can obtain the adjustment and the location of differing heights, again as shown in Figure 7, if when backrest 2 by on when being pushed into maximum prefetch and locating surely, the closure 12 that this blocking assembly 22 can be subjected to continuous positioning tooth 11 upper ends compresses, force blocking assembly 22 to be swung to the right, make caulking groove portion 222 on it be entrenched in the tuck pointing portion 214 and be positioned, this moment, backrest 2 promptly can be freely to lower slider, and then as Fig. 8, shown in Figure 9, when sliding to minimum book office under the backrest, the free end 221 of this blocking assembly 22, can offset and pushed left with dialling from portion 13, make the

caulking groove portion

222 and 214 disengagings of tuck pointing portion of blocking assembly 22 come, and then make blocking assembly 22 again because of being subjected to the pushing tow of spring 23, recovery is the state that can flexibly be fastened on each positioning tooth 11, allows backrest 2 can be fit to the dependence height of oneself again by low and high adjustment.

Simultaneously, see also Figure 10, shown in Figure 11, after backrest 1 is adjusted to any one suitable predetermined altitude, the lower end waist of this backrest 2 is by the position, the dependence position that also just in time can meet occupant's waist, simultaneously by the elasticity thrusting action of elasticity supporter 3, allow backrest 2 waist by the position have towards occupant's waist against effect, and then make occupant's waist can obtain comfortable support.

Claims

One kind can be along with the waist elasticity reclining apparatus of chair tool backrest lifting, it is characterized in that, be to comprise that one is fixed on the chair tool and for the support unit that backrest is set, and make between support unit and the backrest and combining by a lifting positioning unit, and between chair tool and backrest lower end, establish by an elasticity supporter and be linked to therebetween, wherein:

This elasticity supporter be comprise that the two-phase IPN closes and in the support that flexible is moved bar with support outer bar, and in supporting, hang spring between the bar outside bar and the support and make both have the effect of elasticity condensation, and the lower ending pivot of bar was fixed in the book office on the chair tool in order was supported, support that the upper end of outer bar then is the book office that pivot is fixed in the backrest dorsal part, then again in supporting outside bar and chair tool and the support pin fixed part of bar and backrest be arranged with respectively and can make the spring of backrest towards the occupant.
2. according to claim 1 can be along with the waist elasticity reclining apparatus of chair tool backrest lifting, it is characterized in that, the middle place of bar has been installed with spring in this support, and the lower end that makes spring is hung on the interior bar of support, the upper end of spring then is to hang on to support on the outer bar, and then makes both have the effect of elasticity condensation.
3. according to claim 2 can it is characterized in that along with the waist elasticity reclining apparatus of chair tool backrest lifting, the flank of the outer bar of this support is provided with the slideway that runs through, and establishes one and wear axle and be through in the slideway and wear the upper end that closes bar in supporting simultaneously.
4. according to claim 1 can it is characterized in that along with the waist elasticity reclining apparatus of chair tool backrest lifting, wherein:

This support unit is that the book office on the support body is provided with continuous positioning tooth, and makes the upper/lower terminal end terminal of this continuous positioning tooth be respectively equipped with closure and dial from portion;

This backrest, set up part jointly establishing the cunning that a two ends pivot is fixed in the backrest dorsal part corresponding to the set positioning tooth of support unit place, and be concaved with the fixing chlamydate recessed portion of closing corresponding to the positioning tooth place at the sliding part of setting up jointly, make recessed closing and form between portion and the covering and can wear the space of closing for support unit, but and make this recessed portion of closing solid elasticity of place's pivot be fastened on blocking assembly on arbitrary positioning tooth, and make blocking assembly and the recessed relative book office of portion that closes again, be respectively equipped with can be chimeric mutually caulking groove portion and tuck pointing portion, simultaneously the closure of this support unit with dial from portion can to the blocking assembly oppress or collude from, and make caulking groove portion between the two with tuck pointing portion is chimeric or disengaging.