CN201602400U - Chair capable of limiting inclined angle of backrest - Google Patents
Chair capable of limiting inclined angle of backrest Download PDFInfo
- Publication number
- CN201602400U CN201602400U CN2009202961192U CN200920296119U CN201602400U CN 201602400 U CN201602400 U CN 201602400U CN 2009202961192 U CN2009202961192 U CN 2009202961192U CN 200920296119 U CN200920296119 U CN 200920296119U CN 201602400 U CN201602400 U CN 201602400U
- Authority
- CN
- China
- Prior art keywords
- chassis
- backrest
- cam
- pullswitch
- inclination angle
- 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 - Fee Related
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Abstract
The utility model relates to a chair capable of limiting the inclined angle of a backrest, which comprises chair legs, a base plate, a bracket, a backrest and a cushion, wherein the backrest is arranged at the rear end of the bracket; a front support point of the cushion is arranged in the middle of the bracket; a rear support point of the cushion is supported by a connecting rod hinged on the base plate; the base plate is internally provided with an elastic torque mechanism and a shifting fork mechanism for adjusting the elasticity of the elastic torque mechanism; the elastic torque mechanism comprises hexagonal rods supported on two sides of the base plate; and the front end of the bracket is sleeved at two ends parts of the hexagonal rods extending out of the outer side of the base plate. The chair is characterized in that the hexagonal rods are positioned in the base plate and are provided with positioning blocks which are provided with press heads; and the base plate is provided with a limiting device which is matched with the press heads and is used for limiting the inclined angle of the backrest. The chair with the structure can be used for limiting the inclined angle of the backrest.
Description
Technical field
The utility model belongs to furniture and makes the field, is specifically related to a kind ofly can carry out spacing seat to the backrest inclination angle.
Background technology
Present seat, generally by chair pin, chassis, be installed in support on the chassis and cushion and backrest and form, in order to improve comfort level, the general adjusting device of regulating the riding angle that all can on the chassis, be provided with, regulating the angle of inclination of backrest, can carry out spacing seat to the backrest inclination angle such as what adopt torsion glue adjusting device.Adopt the seat of this structure, use comfortable, but present this seat, generally do not have position-limit mechanism, can't limit the angle of inclination of backrest, when the user need control the maximum inclination angle of seat, this present class seat can't be realized.
The utility model content
The purpose of this utility model is to provide a kind of can carry out spacing seat to the backrest inclination angle.
Another purpose of the present utility model be to provide a kind of can many gears control backrest maximum inclination angles can carry out spacing seat to the backrest inclination angle.
The purpose of this utility model is achieved in that a kind ofly can carry out spacing seat to the backrest inclination angle, comprise chair pin 1, chassis 2, be installed in support 3 and backrest 4 and cushion 5 on the chassis 2, described backrest 4 is installed in support 3 rear ends, the strong point 50 is installed in the middle part of support 3 before the cushion 5, the back strong point 51 supports by the connecting rod 6 that is hinged on the chassis 2, be provided with the fork mechanism 8 of elastic torsion mechanism 7 and adjusting elastic torsion mechanism 7 elasticity sizes in the described chassis 2, wherein, elastic torsion mechanism 7 comprises that one is supported on the hexagonal bar 70 of both sides, chassis, the front end sleeve of support 3 is connected on the both ends that hexagonal bar 70 stretches out 2 outsides, chassis, it is characterized in that: described hexagonal bar 70 is positioned at chassis 2 and has locating piece 71, have pressure head 72 on the locating piece 71, described chassis 2 is provided with the stopping means 9 of the restriction backrest inclination angle that cooperates with pressure head 72.
Described stopping means comprises pullswitch 90, travelling gear 91, cam 92 and extension spring 93, cam 92 has the confined planes 920 that matches with pressure head 72, the gear control end of pullswitch 90 is installed in 2 outsides, chassis, travelling gear 91 is by rotating shaft 94 rotatable being installed on 2 sidewalls of chassis, and another backguy end of pullswitch 90 is fixed on and drives travelling gear 91 on this travelling gear 91 with rotating shaft 94 rotations; Described cam 92 is installed in the chassis 2 by a limit shaft 95, this cam 92 have one with the driven gear 96 of travelling gear 91 engagement, described extension spring 93 1 ends are fixed on cam 92, the other end is fixed on the chassis 2.
Have two or more confined planes 920 on the described cam 92, the distance of each confined planes and limit shaft 95 is inequality; Described pullswitch 90 is many gears pullswitch, and its gear is identical with confined planes 920 quantity of cam 92.
Good effect of the present utility model is: be provided with pressure head on the locating piece of elastic torsion mechanism, the chassis is provided with the stopping means of the restriction backrest inclination angle that cooperates with pressure head, adopt the seat of this structure, when if the user need limit the backrest inclination angle, stopping means is adjusted to the below of pressure head, when the backrest hypsokinesis, after pressure head is resisted against stopping means, locating piece can't rotate again, also can't rotate with the hexagonal bar of locating piece socket, make the fixed angle of support, so just limited the maximum inclination angle of backrest.
As further improvement of the utility model, stopping means has a plurality of confined planes that cooperate with pressure head, the distance of each confined planes and limit shaft is inequality, and the gear of many gears pullswitch is identical with the confined planes quantity of cam, this structural design, the maximum inclination angle of regulating backrest just can have many grades, such as, confined planes has three, and the maximum inclination angle that limits backrest can be respectively 20 degree or 30 degree or 40 degree.
Description of drawings
Fig. 1 can carry out spacing seat front view to the backrest inclination angle for the utility model;
Fig. 2 can carry out spacing seat left view to the backrest inclination angle for the utility model;
Seat left view when Fig. 3 is the backrest hypsokinesis;
Fig. 4 is a chassis internal structure schematic diagram;
Fig. 5 is the stopping means stereogram;
Fig. 6 is the stopping means fundamental diagram.
The specific embodiment
Below in conjunction with accompanying drawing the utility model can be described in further detail the specific embodiment that the backrest inclination angle is carried out spacing seat.
Embodiment: as Fig. 1-shown in Figure 6, described in the utility modelly can carry out spacing seat to the backrest inclination angle, mainly by chair pin 1, chassis 2, be installed in support 3 and backrest 4 and cushion 5 compositions on the chassis 2, backrest 4 is installed in support 3 rear ends, the strong point 50 is installed in the middle part of support 3 before the cushion 5, the back strong point 51 supports by the connecting rod 6 that is hinged on the chassis 2, cushion 5 can produce interlock with the angle variation of backrest 4, improve comfort level, change the preceding strong point 50 installation sites of cushion 5, during backrest 4 hypsokinesis, the angle of inclination of its cushion 5 varies in size, it is forward more that the strong point 50 is installed in the position of support 3, and cushion 5 angles change more little.Be provided with elastic torsion mechanism 7 and fork mechanism 8 in the chassis 2, wherein, elastic torsion mechanism 7 has the hexagonal bar 70 that is supported on 2 both sides, chassis, the front end sleeve of support 3 is connected on the both ends that hexagonal bar 70 stretches out the outside, chassis, hexagonal bar 70 is positioned at chassis 2 and has locating piece 71, has pressure head 72 on the locating piece 71.Chassis 2 is provided with the stopping means 9 of the restriction backrest inclination angle that cooperates with pressure head 72, this stopping means mainly is made up of many gears pullswitch 90, travelling gear 91, cam 92 and extension spring 93, cam 92 has the confined planes 920 that matches with pressure head 72, the gear control end of pullswitch 90 is installed in 2 outsides, chassis, travelling gear 91 is by rotating shaft 94 rotatable being installed on 2 sidewalls of chassis, and another backguy end of pullswitch 90 is fixed on and drives travelling gear 91 on this travelling gear 91 with rotating shaft 94 rotations.Cam 92 is installed in the chassis 2 by a limit shaft 95, this cam 92 have one with the driven gear 96 of travelling gear 91 engagement, extension spring 93 1 ends are fixed on cam 92, the other end is fixed on the chassis 2.When needing the angle of inclination of restriction backrest 4, stir pullswitch, make travelling gear 91 rotations, drive driven gear 96 rotations, the confined planes 920 of cam 92 is adjusted to the below of pressure head 72, during the backrest hypsokinesis, elastic torsion mechanism 7 rotates, and drives pressure head 72 rotations, when pressure head 72 is resisted against at confined planes 920, elastic torsion mechanism 7 can't rotate again, has so just limited the further hypsokinesis of backrest 4, realizes limit function, when needs reset, discharge many gears pullswitch 90, cam 92 is got back to initial position under the pulling force of extension spring 93.
As Fig. 4, Fig. 5, shown in Figure 6, cam 92 is designed to have six confined planes 920, the distance of each confined planes and limit shaft 95 is inequality, and pullswitch 90 adopts many gears pullswitch, and its gear is identical with confined planes 920 quantity of cam 92, by stirring pullswitch to different gears, the different confined planes of cam 92 are cooperated with pressure head 72, can change the maximum inclination angle of backrest 4, certainly, confined planes 920 is not limited to six, can also be other quantity.
The hexagonal bar 70 that the utility model patent adopted can also be non-revolution structures such as four angular poles, triangle pole, adopts these structures, all belongs to equivalent technical solutions of the present utility model, falls into protection domain of the present utility model.
Claims (3)
1. one kind can be carried out spacing seat to the backrest inclination angle, comprise chair pin (1), chassis (2), be installed in support (3) and backrest (4) and cushion (5) on the chassis (2), described backrest (4) is installed in support (3) rear end, the preceding strong point of cushion (5) (50) is installed in the middle part of support (3), the back strong point (51) supports by the connecting rod (6) that is hinged on the chassis (2), be provided with the fork mechanism (8) of elastic torsion mechanism (7) and adjusting elastic torsion mechanism (7) elasticity size in the described chassis (2), wherein, elastic torsion mechanism (7) comprises that one is supported on the hexagonal bar (70) of both sides, chassis, the front end sleeve of support (3) is connected on the both ends that hexagonal bar (70) stretches out the outside, chassis (2), it is characterized in that: described hexagonal bar (70) is positioned at chassis (2) and has locating piece (71), have pressure head (72) on the locating piece (71), described chassis (2) are provided with the stopping means (9) of the restriction backrest inclination angle that cooperates with pressure head (72).
2. according to claim 1ly can carry out spacing seat to the backrest inclination angle, it is characterized in that: described stopping means comprises pullswitch (90), travelling gear (91), cam (92) and extension spring (93), cam (92) has the confined planes (920) that matches with pressure head (72), the gear control end of pullswitch (90) is installed in outside, chassis (2), travelling gear (91) is installed on the sidewall of chassis (2) by rotating shaft (94) is rotatable, and another backguy end of pullswitch (90) is fixed on the last travelling gear (91) that drives of this travelling gear (91) and rotates with rotating shaft (94); Described cam (92) is installed in the chassis (2) by a limit shaft (95), this cam (92) have one with the driven gear (96) of travelling gear (91) engagement, described extension spring (93) one ends are fixed on cam (92), the other end is fixed on the chassis (2).
3. according to claim 2ly can carry out spacing seat to the backrest inclination angle, it is characterized in that: have two or more confined planes (920) on the described cam (92), the distance of each confined planes and limit shaft (95) is inequality; Described pullswitch (90) is many gears pullswitch, and its gear is identical with confined planes (920) quantity of cam (92).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202961192U CN201602400U (en) | 2009-12-30 | 2009-12-30 | Chair capable of limiting inclined angle of backrest |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202961192U CN201602400U (en) | 2009-12-30 | 2009-12-30 | Chair capable of limiting inclined angle of backrest |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201602400U true CN201602400U (en) | 2010-10-13 |
Family
ID=42947103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202961192U Expired - Fee Related CN201602400U (en) | 2009-12-30 | 2009-12-30 | Chair capable of limiting inclined angle of backrest |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201602400U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105496052A (en) * | 2015-12-03 | 2016-04-20 | 安徽理工大学 | Ergonomic chair with arc-adjustable backrest |
| CN109393797A (en) * | 2018-10-22 | 2019-03-01 | 浙江粤强家具科技有限公司 | One kind taking a seat adaptive adjustable chair holder structure |
| CN112089242A (en) * | 2019-06-18 | 2020-12-18 | 深圳市恒天顺发实业有限公司 | Chair with back rest |
-
2009
- 2009-12-30 CN CN2009202961192U patent/CN201602400U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105496052A (en) * | 2015-12-03 | 2016-04-20 | 安徽理工大学 | Ergonomic chair with arc-adjustable backrest |
| CN105496052B (en) * | 2015-12-03 | 2018-02-23 | 安徽理工大学 | A kind of adjustable Ergonomic chair of chair back radian |
| CN109393797A (en) * | 2018-10-22 | 2019-03-01 | 浙江粤强家具科技有限公司 | One kind taking a seat adaptive adjustable chair holder structure |
| CN109393797B (en) * | 2018-10-22 | 2024-04-12 | 浙江粤强家具科技有限公司 | Self-adaptive adjustable seat structure for sitting |
| CN112089242A (en) * | 2019-06-18 | 2020-12-18 | 深圳市恒天顺发实业有限公司 | Chair with back rest |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101013 Termination date: 20101230 |