CN1775144A - Seat back adjusting device - Google Patents
Seat back adjusting device Download PDFInfo
- Publication number
- CN1775144A CN1775144A CN 200510130454 CN200510130454A CN1775144A CN 1775144 A CN1775144 A CN 1775144A CN 200510130454 CN200510130454 CN 200510130454 CN 200510130454 A CN200510130454 A CN 200510130454A CN 1775144 A CN1775144 A CN 1775144A
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- base
- sliding sleeve
- slide bar
- plate
- regulating device
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- 230000001105 regulatory effect Effects 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 3
- 230000004308 accommodation Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 13
- 238000005452 bending Methods 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000013016 damping Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 241000282376 Panthera tigris Species 0.000 description 1
- 235000004443 Ricinus communis Nutrition 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The invention discloses a seat backrest adjusting device, which comprises a base and a backrest seat which are mutually hinged, wherein a hinge shaft of the seat backrest adjusting device is sleeved with a torsional spring, one side of the base is provided with a sliding sleeve, a sliding rod is arranged in the sliding sleeve, the sliding rod is sleeved with a spring, one end of the sliding rod extends outwards from the sliding sleeve, the other end of the sliding rod, which is positioned in the sliding sleeve, is provided with a push plate, one end of the sliding sleeve, which penetrates out of the sliding rod, is provided with a spring limiting structure, the other end of the sliding sleeve is provided with an adjusting rod corresponding to the push plate of the sliding rod, the spring is positioned between the push plate and the limiting structure, one. The product of the invention can continuously and steplessly adjust the front and back elevation angles of the seat backrest, has the outstanding use effects of simple structure, small volume, light weight, convenient adjustment, stable performance and the like, and has very wide application prospect.
Description
Technical field
The present invention relates to a kind of chair back regulating device, specifically be meant to be installed in the device that is used to regulate the backrest elevation angle, front and back between backrest frame and the seat frame and plays cushioning effect.
Background technology
At present, the backrest of most of seats all is fixed, people can only eliminate fatigue by adjusting sitting posture after sitting, though some seat has rotation and elevating function, but its backrest all needs just to adjust to before use suitable angle, can't in use carry out in good time adjusting as required, and its angle is to carry out conversion by limited gear, as the swivel chair of quite popularizing now, it is mainly by seat cushion, backrest, the claw type back shaft, rotating shaft, castor and elevation and subsidence regulating device are formed, the shaft set of seat frame bottom is in back shaft, arc curved booms by 90 degree between back rest and the seat frame are connected, curved boom has certain elasticity, generally all be set with the resilient sleeve that is accordion on it, the seat frame bottom is provided with buffer unit, with the strength of buffering human body when pressured backward, this buffer unit comprises on make-up fit cylindrical, lower house, be provided with spring in the housing, one traveller extends through curved boom downwards from the seat frame bottom and is threaded with lower house, upper shell and arc curved boom lean, though such structure can provide certain buffering surplus for backrest, but the angle between backrest and the seat still can't be regulated as required, and also there is same problem in other various types of seats.Chinese patent CN92215139.3 disclosed a kind of " self-adjustable seat " and for example, it is by base, connecting mechanism for rotating, support, back rest and seat frame constitute, base is the relative shape that is rotatably connected with support by connecting mechanism for rotating, the back rest lower end is with the seat frame rear end and is rotatably connected, the nearly lower end of back rest is with support and is rotatably connected, also be provided with a damping unit that flexibly connects with seat frame and support between seat frame and the support, like this when human body to layback or when turning forward, because the effect of damping unit, make between backrest and the seat frame and can slowly form needed comfortable angle, though the backrest of this seat can be regulated as required, but adjusting device need be arranged on the both sides of seat, can take very big space, not attractive in appearance not the saying of influence integral body, it also is very much heavy using, and seat and backrest can move simultaneously, when adjusting backrest, the height at seat also can change, and can't realize the independent adjusting of backrest.According to the knowledge of the applicant, also have some to be used for the device of adjustment seat chair back on the market, as automotive seat adjusting device (Chinese patent CN200420011880.4), fitness equipment seat adjuster (Chinese patent CN03278542.9), though these adjusting devices can satisfy people's instructions for use to a certain extent, but there is complex structure in the former, regulates defectives such as inconvenience, fault rate height, latter's side is too simple, only utilize the fit system of latch, jack to change angle, can't carry out continuous step-less adjustment.
Summary of the invention
Deficiency at prior art exists the object of the present invention is to provide a kind of chair back regulating device simple in structure, easy to use.The step-less adjustment that it can not only realize the elevation angle, backrest front and back can also play good cushioning effect.
For achieving the above object, the technical solution used in the present invention is: a kind of chair back regulating device, comprise the base and the backrest seat that are hinged, be set with torsion spring on its hinge, base one side is provided with sliding sleeve, be provided with slide bar in the sliding sleeve, be set with spring on the slide bar, slide bar one end is protruding from sliding sleeve, its other end that is positioned at sliding sleeve is provided with push pedal, slide over the end that slide bar passes and be provided with the spring position limiting structure, the other end is provided with and the corresponding adjusting rod of slide bar push pedal, spring is between push pedal and position limiting structure, the end that slide bar stretches out sliding sleeve is provided with locking member, and this locking member is formed by stacking by a plurality of locking plates that obliquely are arranged between base and the backrest seat, and locking plate one end is sleeved on the slide bar by the slide opening on it, the other end is contained in by the shaft hole sleeve on it in rotating shaft of backrest seat, and the external part of slide bar is provided with the securing member that can above-mentioned locking plate and sliding sleeve end face be compressed mutually by spring.
Described position limiting structure is flanging or projection or the convex edge that the sliding sleeve opening inwardly tightens up.
Described slide bar is a threaded rod, and its end of thread stretches out sliding sleeve, and the securing member that compresses locking plate is a nut.
Described adjusting rod is hinged by rotating shaft and sliding sleeve opening, the end that adjusting rod leans with the slide bar push pedal in rotation process has two working faces, the vertical range at one of them working face and rotating shaft center is greater than the vertical range at another working face and rotating shaft center, and the adjusting rod outer end is a handle
Be set with the pad between each locking plate on the described slide bar, also be provided with pad between locking plate and sliding sleeve end face, locking plate and the securing member.
Described locking plate is strip, and two ends are semicircle, offer axis hole on the end, offer slide opening on the other end.
Described locking member is formed by stacking by 4～20 locking plates.
Also be provided with pad between described spring and the spring position limiting structure.
Described base and backrest seat comprise base plate and upright biside plate, and biside plate forms spatial accommodation.
Described base and backrest seat take the shape of the letter U.
Described sliding sleeve and base side plate are perpendicular and stretch into the base certain distance, and an end is positioned at base inside, and the other end is positioned at chassis outer side.
The side plate of described base and backrest seat is hinged, and the open top of backrest seat is relative with the side opening of base, is the interlock shape, and the side plate opposite face is the inclined-plane,
The base plate of described base is provided with the location journal stirrup at the Qi Sijiao place, offers installing hole on the journal stirrup.
Offer the axis hole suitable with slide bar on described base and the sliding sleeve opposing sideplates, slide bar passes this axis hole and is horizontally set with between the base biside plate.
Be provided with between the biside plate of described backrest seat with its base plate perpendicular be used for the installing plate that links to each other with back rest, installing plate is provided with installing hole.
Be provided with connector between the biside plate of described base.
Described torsion spring is two, is sleeved on abreast on the jointed shaft of base and backrest seat.
Two of described torsion spring turn round arm and lean with the base plate of base or backrest seat respectively.
Two of described torsion spring turn round arm respectively with base or backrest seat on support component lean.
Described support component is riser or projection or transverse axis.
Described torsion spring suppresses in the rotating shaft of backrest seat.
Described sliding on the cross section is square.
The present invention's its base and seat frame in use fixes, backrest seat and back rest fix, whole device is positioned at the back lower place of seat, only take very little usage space, structure is small and exquisite slim and graceful, base and backrest seat are hinged and play the effect of similar hinge, but make backrest with respect to the seat swing, torsion spring on the hinge plays support, cushioning effect, since the locking plate two ends respectively with base on slide bar and the rotating shaft on the backrest seat be hinged, therefore the angle between base and the backrest seat is determined by the oblique locking plate that is arranged between the two, when adjusting rod when the nearer front end face of its rotating shaft and slide bar push pedal lean, slide bar is compressing the pad between locking plate and locking plate with the sliding sleeve end face mutually by nut under the effect of spring, the effect drop shot in frictional force can not move in the slide opening at locking plate this moment, be that base and backrest seat can not relatively rotate, when control crank outwards moves by adjusting rod front end face promotion slide bar, will produce the gap between nut on the slide bar and the locking plate, thereby the clamping force of laying down, this moment slide bar just can be in the slide opening of locking plate freely-movable, be that base and backrest seat can relatively rotate, after being adjusted to suitable angle, again control crank make slide bar reset with locking plate clamp again can realize the location.The user is sitting on the chair adjusting rod by the side and can regulates freely, locking plate locking behind the driving handle downwards, backrest and seat fix, after upwards pulling handle, locking plate loosens, backrest and seat can relatively rotate, and under the effect of torsion spring, has certain elasticity, can work as the elasticity chair and use this moment, after human body overcomes the torsion spring active force backrest is adjusted to suitable angle, driving handle just can be located backrest downwards again, and backrest can carry out continuous step-less adjustment in the angle range of design, have simple in structure, volume is little, in light weight, easy to adjust, the result of use that stable performance etc. are outstanding.
Description of drawings
Fig. 1 is an overall structure schematic diagram of the present invention;
Fig. 2 is a decomposition texture schematic diagram of the present invention;
Fig. 3 is the decomposition texture schematic diagram of slide bar and locking member
Structural representation when Fig. 4 does not install locking member and slide bar for the present invention;
Structural representation when Fig. 5 is in locking state for the present invention, wherein Fig. 5 (a) is the A-A cross-sectional schematic of Fig. 5 (b), Fig. 5 (c) is the B-B cross-sectional schematic of Fig. 5 (b);
The structural representation when but Fig. 6 is in adjustment state for the present invention, wherein Fig. 6 (a) is the C-C cross-sectional schematic of Fig. 6 (b), Fig. 6 (c) is the D-D cross-sectional schematic of Fig. 6 (b).
Specific embodiment
The present invention is further detailed explanation below in conjunction with accompanying drawing.
Description of reference numerals:
1---base 2---sliding sleeve
3---backrest seat 4---transverse axis
5---rotating shaft 6---torsion spring
7---screw rod 8---spring
9---push pedal 10---square washer
11---adjusting rod 12---handle
13---locking plate 14---nut
15---connector 16---circular gasket
As Fig. 1, Fig. 2, shown in Figure 4, base 1 takes the shape of the letter U, biside plate by base plate and bending is downwards formed, be provided with connector 15 between the biside plate, four jiaos of place's journal stirrups of base plate for being used for linking to each other with seat frame, vertically be provided with a rectangle sliding sleeve 2 on its left plate, sliding sleeve 2 one ends are positioned at the base inboard, its opening has four flangings that inwardly fold, be used for spring is remained in the sliding sleeve, the other end is positioned at chassis outer side, and its opening is a U-shaped hinged seat, the two side semicircular in shape of hinged seat, so that relatively rotate with adjusting rod, offer through hole that passes for slide bar and the axis hole that is hinged with backrest seat 3 on the right plate of base 1, through hole roughly is positioned at the middle part of side plate, and axis hole is positioned at the Yi Jiaochu of side plate near base plate.Certainly, the spring holding structure of sliding sleeve opening part can be the projection of inwardly tightening up or convex edge or the like form, provides fulcrum as long as can lean with spring for it.
As Fig. 1, Fig. 2, shown in Figure 4, backrest seat 3 also takes the shape of the letter U, form by base plate and upright biside plate, be provided with the transverse axis 4 that is used for the suit locking plate between the biside plate, also be provided with between its biside plate and be used for the installing plate that links to each other with back rest, this installing plate and base plate are perpendicular, offer installing hole on it, axis hole on the backrest seat 3 is positioned at the drift angle place of side plate, keep a determining deviation with base plate, base 1 is hinged by axis hole on it and rotating shaft 5 with backrest seat 3, be tiger interlock shape, the open top of backrest seat 3 is relative with the side opening of base 1, both base plates are perpendicular, the side that side plate is relative is the inclined-plane,, both are unlikely to interfere phenomenon so that can better rotating, be set with two torsion springs that are arranged side by side 6 in the rotating shaft 5, the arm of turning round of torsion spring 6 suppresses respectively on the transverse axis 4 with the base plate of base 1 and backrest seat 3, like this, at backrest seat 3 when its rotating shaft is rotated with respect to base, when promptly human body is pressured backward, at first to overcome the elastic force of torsion spring, torsion spring can play good buffering and supporting role here, and backrest can seesaw with human body, has good elasticity.
As Fig. 1, Fig. 2, shown in Figure 3, be provided with screw rod 7 in the sliding sleeve 2, be set with spring 8 on the screw rod 7, the end of thread of screw rod 7 is protruding from the interior side opening of sliding sleeve 2, the through hole that passes on another side plate is horizontally installed in the base 1, parallel with the transverse axis 4 on the backrest seat, be fixed with square push pedal 9 on the screw head, spring 8 suppresses on the flanging of sliding sleeve 2 by square washer 10, adjusting rod 11 is hinged by the U-shaped seat of rotating shaft and sliding sleeve opening, the end that adjusting rod 11 leans with slide bar push pedal 9 in rotation process is the obtuse angle folding surface, comprise two planes, the vertical range at one of them plane and rotating shaft center is greater than the vertical range at another plane and rotating shaft center, but adjusting rod is in the just lead-screw side-to-side movement in sliding sleeve of when swing like this, realizes the clamping of locking plate or loosens, and the end of adjusting rod 11 is flat bending handle 12, adjusting rod 11 is an integral structure with handle 12, offers promising its on the sliding sleeve 2 gap in swing space is provided.The end that adjusting rod 11 is used for the lead-screw push pedal can be made into other suitable shapes, as cam-shaped, curved surface shaped or the like.
As shown in Figure 3, locking member is formed by stacking by eight locking plates 13, locking plate 13 is strip, two ends are semicircle, offer slide opening on one end, offer axis hole on the other end, locking plate 13 1 ends are sleeved on the screw rod 7 by the strip slide opening on it, the other end is contained on the transverse axis 4 of backrest seat by the shaft hole sleeve on it, locking plate obliquely is arranged between base 1 and the backrest seat 3, between the locking plate, between locking plate and the sliding sleeve end face, be provided with the circular gasket 16 that is sleeved on the screw rod between locking plate and the securing member, nut 14 on the screw rod 7 compresses locking plate and pad thereof mutually with the sliding sleeve end face, owing to adopted multi-sheet structure and between locking plate, be provided with pad, therefore when nut is locked locking plate, can obtain enough frictional force and prevent screw rod and locking plate relative motion under the effect of spring force, locking plate obliquely is supported between base 1 and the backrest seat 3, prevents that it from relatively rotating.Locking plate quantity is decided by seat size and backrest weight, as long as effective tie down screw, locking plate also can be shapes such as bending or arc-shaped bend, as long as can play the effect of effective support.
As shown in Figure 4, when adjusting rod when the nearer arc transiting surface of its rotating shaft and screw rod push pedal 9 lean, screw rod 7 is compressing the pad between locking plate 13 and locking plate 16 with the sliding sleeve end face mutually by nut 14 under the effect of spring 8, can not in slide opening at locking plate move at screw rod under the effect of frictional force this moment, be that base 1 can not relatively rotate with backrest seat 3, both base plates are perpendicular.
As shown in Figure 5, when the moving control crank 12 of upper plate outwards moves by adjusting rod 11 front end face lead-screws 7, will produce the gap between nut 14 on the screw rod 7 and the locking plate, thereby the clamping force of laying down, each locking plate is loosening mutually, this moment screw rod 7 just can be in the slide opening of locking plate freely-movable, promptly base 1 and backrest seat 3 can relatively rotate, after being adjusted to suitable angle, again with handle 12 to press down make screw rod 7 reset with locking plate clamp again can realize the location.
Claims (10)
1, a kind of chair back regulating device, it is characterized in that, comprise the base and the backrest seat that are hinged, be set with torsion spring on its hinge, base one side is provided with sliding sleeve, be provided with slide bar in the sliding sleeve, be set with spring on the slide bar, slide bar one end is protruding from sliding sleeve, its other end that is positioned at sliding sleeve is provided with push pedal, slide over the end that slide bar passes and be provided with the spring position limiting structure, the other end is provided with and the corresponding adjusting rod of slide bar push pedal, spring is between push pedal and position limiting structure, the end that slide bar stretches out sliding sleeve is provided with locking member, and this locking member is formed by stacking by a plurality of locking plates that obliquely are arranged between base and the backrest seat, and locking plate one end is sleeved on the slide bar by the slide opening on it, the other end is contained in by the shaft hole sleeve on it in rotating shaft of backrest seat, and the external part of slide bar is provided with the securing member that can above-mentioned locking plate and sliding sleeve end face be compressed mutually by spring.
2, chair back regulating device according to claim 1 is characterized in that, is set with the pad between each locking plate on the described slide bar, also is provided with pad between locking plate and sliding sleeve end face, locking plate and the securing member.
3, chair back regulating device according to claim 2, it is characterized in that, described adjusting rod is hinged by rotating shaft and sliding sleeve opening, the end that adjusting rod leans with the slide bar push pedal in rotation process has two working faces, the vertical range at one of them working face and rotating shaft center is greater than the vertical range at another working face and rotating shaft center, and the adjusting rod outer end is a handle
4, chair back regulating device according to claim 3 is characterized in that, described position limiting structure is flanging or projection or the convex edge that the sliding sleeve opening inwardly tightens up.
5, chair back regulating device according to claim 4 is characterized in that, described slide bar is a threaded rod, and its end of thread stretches out sliding sleeve, and the described securing member that compresses locking plate is a nut.
6, chair back regulating device according to claim 5 is characterized in that, described base and backrest seat comprise base plate and upright biside plate, and biside plate forms spatial accommodation.
7, chair back regulating device according to claim 6 is characterized in that, described base and backrest seat take the shape of the letter U.
8, chair back regulating device according to claim 7 is characterized in that, described sliding sleeve and base side plate are perpendicular and stretch into the base certain distance, and an end is positioned at base inside, and the other end is positioned at chassis outer side.
9, chair back regulating device according to claim 8 is characterized in that, described base and backrest seat are hinged at the angle point place of its side plate, and the open top of backrest seat is relative with the side opening of base, is the interlock shape, and the side plate opposite face is the inclined-plane,
10, chair back regulating device according to claim 9, it is characterized in that, the base plate of described base is provided with the location journal stirrup at the Qi Sijiao place, offer installing hole on the journal stirrup, offer the axis hole suitable on described base and the sliding sleeve opposing sideplates with slide bar, slide bar passes this axis hole and is horizontally set with between the base biside plate, be provided with between the biside plate of described backrest seat with its base plate perpendicular be used for the installing plate that links to each other with back rest, installing plate is provided with installing hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510130454 CN1775144A (en) | 2005-12-09 | 2005-12-09 | Seat back adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510130454 CN1775144A (en) | 2005-12-09 | 2005-12-09 | Seat back adjusting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1775144A true CN1775144A (en) | 2006-05-24 |
Family
ID=36764960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510130454 Pending CN1775144A (en) | 2005-12-09 | 2005-12-09 | Seat back adjusting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1775144A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102056512A (en) * | 2008-06-05 | 2011-05-11 | 株式会社内田洋行 | Chair with tilting backrest |
| CN106724259A (en) * | 2017-02-15 | 2017-05-31 | 浙江安吉铭成椅业有限公司 | One kind has the improved chair base of structure |
| CN107049640A (en) * | 2017-02-15 | 2017-08-18 | 浙江安吉铭成椅业有限公司 | A kind of wheel seat base of convenient regulation angle |
| CN107397364A (en) * | 2016-05-20 | 2017-11-28 | 永艺家具股份有限公司 | Damper regulation mechanism for leisure chaise longue |
| CN108514264A (en) * | 2018-06-20 | 2018-09-11 | 昆山奇朗数码科技有限公司 | A kind of power seat |
| CN109330781A (en) * | 2018-10-15 | 2019-02-15 | 安徽工程大学 | Transfer device |
| CN113796688A (en) * | 2021-09-30 | 2021-12-17 | 中山市东立家具配件有限公司 | Stepless locking chassis of office chair |
| TWI827479B (en) * | 2023-02-22 | 2023-12-21 | 陳信華 | Control lever structure of chair adjustment device |
-
2005
- 2005-12-09 CN CN 200510130454 patent/CN1775144A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102056512A (en) * | 2008-06-05 | 2011-05-11 | 株式会社内田洋行 | Chair with tilting backrest |
| CN102056512B (en) * | 2008-06-05 | 2013-06-12 | 株式会社内田洋行 | Chair with tilting backrest |
| CN107397364A (en) * | 2016-05-20 | 2017-11-28 | 永艺家具股份有限公司 | Damper regulation mechanism for leisure chaise longue |
| CN107397364B (en) * | 2016-05-20 | 2023-06-02 | 永艺家具股份有限公司 | Damping adjusting mechanism for leisure chair |
| CN106724259A (en) * | 2017-02-15 | 2017-05-31 | 浙江安吉铭成椅业有限公司 | One kind has the improved chair base of structure |
| CN107049640A (en) * | 2017-02-15 | 2017-08-18 | 浙江安吉铭成椅业有限公司 | A kind of wheel seat base of convenient regulation angle |
| CN108514264A (en) * | 2018-06-20 | 2018-09-11 | 昆山奇朗数码科技有限公司 | A kind of power seat |
| CN109330781A (en) * | 2018-10-15 | 2019-02-15 | 安徽工程大学 | Transfer device |
| CN109330781B (en) * | 2018-10-15 | 2024-05-14 | 安徽工程大学 | Transfer device |
| CN113796688A (en) * | 2021-09-30 | 2021-12-17 | 中山市东立家具配件有限公司 | Stepless locking chassis of office chair |
| TWI827479B (en) * | 2023-02-22 | 2023-12-21 | 陳信華 | Control lever structure of chair adjustment device |
| US20240280168A1 (en) * | 2023-02-22 | 2024-08-22 | Hsin-Hua Chen | Control pull-bar structure of chair adjusting device |
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