CN203168518U - Chair back front-back adjusting mechanism - Google Patents
Chair back front-back adjusting mechanism Download PDFInfo
- Publication number
- CN203168518U CN203168518U CN2013201248787U CN201320124878U CN203168518U CN 203168518 U CN203168518 U CN 203168518U CN 2013201248787 U CN2013201248787 U CN 2013201248787U CN 201320124878 U CN201320124878 U CN 201320124878U CN 203168518 U CN203168518 U CN 203168518U
- Authority
- CN
- China
- Prior art keywords
- chair back
- controls
- guiding mechanism
- connecting rod
- ring gear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000010276 construction Methods 0.000 claims description 7
- 230000003068 static effect Effects 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Images
Landscapes
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
The utility model relates to a chair, and in particular relates to a chair back front-back adjusting mechanism. According to the technical scheme, the chair back front-back adjusting mechanism comprises a chair seat, a chair back movably connected with the chair seat, and locking structure, wherein connecting rods are arranged between the side edges of the chair back and the same sides of the chair seat respectively, one end of each connecting rod is rotatably connected with the chair back, the locking structure is capable of conveniently controlling an included angle between each connecting rod and the chair back. The chair back can be adjusted forward or backward so as to adjust the sitting posture of people.
Description
Technical field
The utility model relates to chair, particularly guiding mechanism before and after a kind of chair back.
Background technology
Prior art, the chair that can move forward and backward for the disclosed a kind of chair back of utility model patent of CN2309746Y as Granted publication number, the chair that the chair back can move forward and backward is that guiding mobile device and positioner are equipped with in both sides and junction, chair foot rest both sides below original chair chairback brace, the guiding mobile device is made up of guideway and the pulley that is installed on the guideway, and positioner is by being installed in locating support, spring, the inserting column on the mobile chairback brace and being installed on the chair foot rest or the location-plate that is loaded on the guideway of chair foot rest is formed.
The utility model content
The purpose of this utility model provides guiding mechanism before and after a kind of chair back, by to the chair back more forward by or more backward conciliation, to adjust human body sitting posture.
Above-mentioned technical purpose of the present utility model is achieved by the following technical programs: guiding mechanism before and after a kind of chair back, the chair back that comprises seat support, flexibly connects with described seat support, described chair back side and described seat support be provided with connecting rod in the same way between the side, an end of described connecting rod is rotationally connected with the described chair back; Guiding mechanism also comprises the latch-up structure that can be convenient to control formation angle angle between described connecting rod and the described chair back before and after this kind chair back.
As of the present utility model preferred, described latch-up structure comprise link be rotationally connected with in the ring gear of described connecting rod, by axle one the described chair back and eccentric be provided with that the tooth that can be engaged in described ring gear buckles buckle arm, can control that described tooth is buckled with described ring gear between mesh or the construction of switch of disengaged condition.
As of the present utility model preferred, described construction of switch comprises the switch column of being located at described button arm, can drive the controls that switch column rotates around described axle one.
As of the present utility model preferred, described controls is rotationally connected with the described chair back by axle two; Have on the described controls and can drive described switch column and be suitable for the chute that described switch column slides.
As of the present utility model preferred, described latch-up structure also comprises locking mechanism, and described locking mechanism comprises by the be rotationally connected described chair back and can contact at described button arm and can make trend that the oriented described ring gear of described tooth fastener draws close or latch segment, an end of action can link and be located at the locking post of described latch segment in described controls other end off-centre when both conflict of axle three; Described controls is provided with and can drives described locking post rotated and be suitable for described locking post slip around described axle three arc groove one.
As of the present utility model preferred, described controls is provided with the arc groove two that can be suitable for described switch column slip and communicate with described chute under described button arm and described ring gear relative static conditions.
As of the present utility model preferred, described latch-up structure also comprises the elastic component that resistance is provided when can the rotation direction when described controls breaks away from described ring gear along described tooth button rotating.
As of the present utility model preferred, gripper shoe is arranged fixedly on the described controls; Described elastic component is located between described gripper shoe and the described chair back.
As of the present utility model preferred, described connecting rod is rotationally connected with described seat support; Also be rotatably connected to pull bar between the described chair back and the described seat support.
As of the present utility model preferred, described controls is armrests.
In sum, the utlity model has following beneficial effect: the utility model is simple in structure, easy to implement, connecting rod can be fixed on the seat support, also can be rotationally connected with seat support, if connecting rod is fixed on the seat support, then may not need the setting of pull bar, but it is stable poor, the ordinary circumstance lower link also is rotationally connected with seat support, connecting rod, pull bar, the chair back, form a quadrangle space that is rotationally connected mutually between the seat support, certainly connecting rod, pull bar is also can be mutually arranged in a crossed manner forming two triangle spaces, but generally speaking, for forming a quadrangle space, ring gear and the engagement of tooth button by latch-up structure make the fixed angle that forms between connecting rod and the chair back, thus locking chair back current location, when ring gear and the disengagement of tooth button, then can be by changing the angle between connecting rod and the chair back so that rotate the chair back, make the chair back forward by or lean on backward; Certainly under the setting in above-mentioned quadrangle space, latch-up structure can be located between any a pair of adjacent side in quadrangle space, and not only for being located between connecting rod and the chair back; The setting of arc groove two makes latch-up structure can not influence engagement degree between ring gear and the tooth button owing to the fine rotation of controls; Controls can be armrests.
Description of drawings
Fig. 1 is the example structure schematic diagram;
Fig. 2 is the syndeton schematic diagram of square groove spare and latch-up structure among the embodiment;
Fig. 3 is A portion enlarged drawing among Fig. 2;
Fig. 4 is B portion enlarged drawing among Fig. 2;
Fig. 5 is the engagement schematic diagram between ring gear and the tooth button among the embodiment;
Fig. 6 is controls and switch column among the embodiment, locks the structural representation between the post;
Fig. 7 is the schematic diagram that is rotationally connected between pull bar and the chair back among the embodiment.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
This specific embodiment only is to explanation of the present utility model; it is not to restriction of the present utility model; those skilled in the art can make the modification that does not have creative contribution to present embodiment as required after reading this specification, but as long as all are subjected to the protection of Patent Law in claim scope of the present utility model.
Embodiment: guiding mechanism before and after a kind of chair back, the chair back 2 that comprises seat support 1, flexibly connects with seat support 1, the chair back 2 sides and seat support 1 be provided with connecting rod 31, pull bar 32 in the same way between the side, the two ends of connecting rod 31 are rotationally connected with the chair back 2 and seat support 1 respectively, and the two ends of pull bar 32 are rotationally connected with the chair back 2 and seat support 1 respectively; Connecting rod 31 and pull bar 32 can be arranged in a crossed manner with and the chair back 2 and seat support 1 between form two triangle spaces, by making tensile deformation that these two triangle spaces produce so that adjust the front and back rotation amplitude of the chair back 2; And connecting rod 31 is non-intersect with pull bar 32 in this example, and connecting rod 31, pull bar 32 form the quadrangle space with the chair back 2, seat support 1, allow tensile deformation so that adjust the front and back rotation amplitude of the chair back 2 by is produced from this quadrangle space.
For ease of limiting the current location of the chair back 2, present embodiment also comprises latch-up structure, owing under tetragonal wherein one jiao of isogonal situation, then can't stretch, in like manner, latch-up structure is used for limiting any one angle of four angles in described quadrangle space; In the present embodiment, latch-up structure is used for limiting the angle between connecting rod 31 and the chair back 2; And in the present embodiment, connecting rod 31 more is close on the seat support 1 than the end near the chair back 2 than the junction of pull bar 32 with seat support 1 with the junction of seat support 1; Connecting rod 31 more is close on the chair back 2 than the end near seat support 1 than the junction of pull bar 32 with the chair back 2 with the junction of the chair back 2.
The chair back 2 has hollow square groove spare 21 near the both side ends of seat support 1, and the end that pull bar 32 is connected in the chair back 2 can be positioned at square groove spare 21; Described latch-up structure comprises the ring gear 41 that links in connecting rod 31, and ring gear 41 is fixedly arranged on or one is located at the end that connecting rod 31 is connected with the chair back 2 generally speaking; Be rotatably connected to button arm 42 by axle 1 on the square groove spare 21, on the button arm 42 relatively axle one 421 off-centre be provided with can with the tooth button 422 of ring gear 41 engagements, latch-up structure also comprises controlling and meshes between tooth button 422 and the ring gear 41 or the construction of switch of disengaged condition.
Construction of switch can have various ways, for example when tooth button 422 meshes with ring gear 41, to buckle fixedly square groove spare 21 of arm 42 by a latch fitted shaft 1, thereby limit the angle angle of connecting rod 31 and the chair back 2, need make when relatively rotating between connecting rod 31 and the chair back 2, as long as extract latch, again tooth button 422 is thrown off with ring gear 41 and get final product, Deng, as long as other can realize controlling between tooth button 422 and the ring gear 41 form of engagement or disengaged condition, and present embodiment, construction of switch comprises the switch column 431 of being located at button arm 42, can drive the controls 432 that switch column 431 rotates around axle 1, controls 432 also can be multiple version, and in the present embodiment, controls 432 is armrests.
Latch-up structure also comprises locking mechanism, locking mechanism comprise by axle 3 4411 be rotationally connected square groove spare 21 and can contact at button arm 42 and tooth button 422 is had the trend of drawing close to ring gear 41 or latch segment 441, an end of action can link in controls 4 other ends relatively axle 3 4411 off-centre be located at the locking post 442 of latch segment 441; Controls 432 is provided with and can drives locking post 442 rotated and be suitable for locking post 442 slips around axle 3 4411 arc groove 1.
Because present embodiment square groove spare 21 is the hollow setting, button arm 42, latch segment 441 etc. can be located in the square groove spare 21, thereby also be had the arc groove 3 211 that is suitable for switch column 431 and slides, be suitable for locking the arc groove 4 212 that post 442 slides in the respective side walls of square groove spare 21; Certainly parts such as button arm 42, latch segment 441 can be established outside the square groove spare 21, then do not need to arrange arc groove 3 211 and arc groove 4 212, and at this moment, square groove spare 21 also needn't the hollow setting.
Latch-up structure also comprises the elastic component 45 that resistance is provided when can the rotation direction when controls 432 breaks away from ring gears 41 along tooth button 422 rotating; Elastic component 45 can be spring; Go up between two controls 432 gripper shoe 433 is fixedly arranged; Elastic component 45 is located between gripper shoe 433 and the chair back 2.
Claims (10)
1. guiding mechanism before and after the chair back, the chair back (2) that comprises seat support (1), flexibly connects with described seat support (1), it is characterized in that, the described chair back (2) side and described seat support (1) be provided with connecting rod (31) in the same way between the side, an end of described connecting rod (31) is rotationally connected with the described chair back (2); Guiding mechanism also comprises the latch-up structure that can be convenient to control formation angle angle between described connecting rod (31) and the described chair back (2) before and after this kind chair back.
2. guiding mechanism before and after a kind of chair back according to claim 1, it is characterized in that described latch-up structure comprises and links in the ring gear (41) of described connecting rod (31), is rotationally connected with the described chair back (2) and off-centre by axle one (421) and is provided with the tooth that can be engaged in described ring gear (41) and buckles buckleing arm (42), can controlling described tooth and buckle and mesh between (422) and the described ring gear (41) or the construction of switch of disengaged condition of (422).
3. guiding mechanism before and after a kind of chair back according to claim 2, it is characterized in that described construction of switch comprises the switch column (431) of being located at described button arm (42), can drive the controls (432) that switch column (431) rotates around described axle one (421).
4. guiding mechanism before and after a kind of chair back according to claim 3 is characterized in that described controls (432) is rotationally connected with the described chair back (2) by axle two (4321); Have on the described controls (432) and can drive described switch column (431) and be suitable for the chute (4322) that described switch column (431) slides.
5. guiding mechanism before and after a kind of chair back according to claim 4, it is characterized in that, described latch-up structure also comprises locking mechanism, and described locking mechanism comprises by the be rotationally connected described chair back (2) and can contact at described button arm (42) and described tooth button (422) is had the trend of drawing close to described ring gear (41) or latch segment (441), an end of action can link and be located at the locking post (442) of described latch segment (441) in described controls (4) other end off-centre of axle three (4411); Described controls (432) is provided with and can drives described locking post (442) rotated and be suitable for described locking post (442) slip around described axle three (4411) arc groove one (4323).
6. guiding mechanism before and after a kind of chair back according to claim 4, it is characterized in that described controls (432) is provided with under described button arm (42) and described ring gear (41) relative static conditions can be suitable for the arc groove two (4324) that described switch column (431) slides and communicates with described chute (4322).
7. according to guiding mechanism before and after each described a kind of chair back of claim 3-6, it is characterized in that, described latch-up structure also comprise can be when described controls (432) breaks away from described ring gear (41) along described tooth button (422) rotation direction the elastic component (45) of resistance is provided when rotating.
8. guiding mechanism before and after a kind of chair back according to claim 7 is characterized in that described controls (432) is gone up fixedly gripper shoe (433); Described elastic component (45) is located between described gripper shoe (433) and the described chair back (2).
9. guiding mechanism before and after a kind of chair back according to claim 1 is characterized in that described connecting rod (31) is rotationally connected with described seat support (1); Also be rotatably connected to pull bar (32) between the described chair back (2) and the described seat support (1).
10. guiding mechanism before and after a kind of chair back according to claim 3 is characterized in that described controls (432) is armrests.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201248787U CN203168518U (en) | 2013-03-19 | 2013-03-19 | Chair back front-back adjusting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201248787U CN203168518U (en) | 2013-03-19 | 2013-03-19 | Chair back front-back adjusting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203168518U true CN203168518U (en) | 2013-09-04 |
Family
ID=49065284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201248787U Expired - Lifetime CN203168518U (en) | 2013-03-19 | 2013-03-19 | Chair back front-back adjusting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203168518U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104224419A (en) * | 2014-08-07 | 2014-12-24 | 齐齐哈尔医学院 | Adult sitting posture correction chair |
-
2013
- 2013-03-19 CN CN2013201248787U patent/CN203168518U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104224419A (en) * | 2014-08-07 | 2014-12-24 | 齐齐哈尔医学院 | Adult sitting posture correction chair |
| CN104224419B (en) * | 2014-08-07 | 2016-08-17 | 齐齐哈尔医学院 | Adult's sitting posture orthopedic chair |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10827841B1 (en) | Chair waist backrest height adjusting device | |
| TWI566721B (en) | Backrest device | |
| CN102894699A (en) | Follow-up device of backrest of movable chair | |
| CN204020626U (en) | The angle adjusting mechanism of child's safety seat for vehicle | |
| CN204196734U (en) | Vehicle-mounted child safety seat | |
| CN108082260A (en) | Children trolley sits pocket fold mechanism | |
| CN203168518U (en) | Chair back front-back adjusting mechanism | |
| DE202015100700U1 (en) | Infants game device | |
| CN201888556U (en) | A seat with a variable center of gravity | |
| CN205381296U (en) | Children's seat pocket and children article | |
| CN103169283A (en) | Tray structure of reclining chair | |
| CN107374130A (en) | A kind of swivel chair special manual positioner | |
| CN103815691A (en) | Winter-summer multifunctional chair | |
| CN104553907B (en) | Automobile children safety hand basket | |
| CN203793157U (en) | Seat back angle regulating mechanism of child safety seat | |
| CN202536750U (en) | Automatic leisure rocking chair | |
| CN203873345U (en) | Beach chair with soft armrests | |
| CN203986973U (en) | The function Comfortable chair of scalable cushion and backrest | |
| CN103082724A (en) | Chair capable of changing gravity center along with changes in elevation angle of backrest | |
| CN201188994Y (en) | Leisure air-actuated chair | |
| CN202723275U (en) | Environment-friendly child swing seat | |
| CN212415306U (en) | Bed guardrail with knob opening mode | |
| CN205125596U (en) | Seat | |
| CN204016765U (en) | Massage armchair | |
| CN212368655U (en) | Multifunctional sofa chair |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130904 |
|
| CX01 | Expiry of patent term |