CN202557365U - Vehicle seat lumbar support - Google Patents
Vehicle seat lumbar support Download PDFInfo
- Publication number
- CN202557365U CN202557365U CN2012200935814U CN201220093581U CN202557365U CN 202557365 U CN202557365 U CN 202557365U CN 2012200935814 U CN2012200935814 U CN 2012200935814U CN 201220093581 U CN201220093581 U CN 201220093581U CN 202557365 U CN202557365 U CN 202557365U
- Authority
- CN
- China
- Prior art keywords
- dome element
- lumbar support
- drag
- vehicle seat
- line
- 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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- Seats For Vehicles (AREA)
Abstract
The utility model discloses a vehicle seat lumbar support. The vehicle seat lumbar support comprises a base frame, an arch element, a driver and an inhaul cable, one end of the arch element is arranged on the base frame in a sliding mode, the other end of the arch element is fixedly arranged on the base frame, one end of the inhaul cable is connected with the driver, and a lever mechanism is disposed between the other end of the inhaul cable and a sliding end of the arch element. During the arching process of the arch element in the seat lumbar support, efforts are saved through the lever mechanism, the pulling force endured by the inhaul cable is small, and the hand wheel adjustment is easy and convenient. The vehicle seat lumbar support has the advantages that the work reliability is good, and phenomena that the inhaul cable is broken when pulled and a head portion falls off are difficult to appear.
Description
Technical field
The utility model relates to the automotive seat technical field, especially relates to the holder of a kind of automotive seat waist.
Background technology
Seat lumbar is mounted in back of seat inside in order to regulate the arch upward regulating mechanism of degree of back of seat.The occupant can regulate the degree that back of seat arches upward through regulating the waist holder, to reach the adjustment sitting posture, to slow down the tired effect of the small of the back.The raising that Along with people's requires car comfort, the waist holder extensively is used on the automotive seat.
The holder of existing automobile seat waist comprises dome element and the drag-line that plastics with favorable elasticity are processed; Dome element one end is fixed, and the other end links to each other with the steel rope of drag-line.When tense wire rope, the height that dome element arches upward just raises; When loosening steel rope, the height that dome element arches upward just reduces.The occupant can or loosen the height that arches upward that steel rope is regulated dome element through tension, and then has regulated the height that arches upward of backrest, to reach the effect of ride comfort.
Disclosed at present automotive seat waist deposits in following problem: though dome element is an elastomeric element; But in order to hold in the palm in tension always in the control process middle part of the side repeatedly, dome element need have bigger resistance of deformation, and tense wire rope arches upward dome element; Pulling force on the steel rope is bigger; Occur easily in long-term use that steel rope is broken or the steel rope head comes off causes waist holder failure phenomenon, and the pulling force on the steel rope is bigger, the adjusting difficulty of handwheel; Because dome element one end is fixed; The other end is strained by steel rope, and dome element is big in the back rigidity that arches upward, the continuous and backrest generation impact in driver and conductor's back when vehicle jolts; Buffering can only rely on the backrest material of seat, therefore having relatively high expectations to the backrest material.
The utility model content
The utility model technical matters to be solved provides the holder of a kind of automotive seat waist, arches upward in the process to reach dome element, and the pulling force that drag-line bears is little, purpose easy to adjust.
In order to solve the problems of the technologies described above; The technical scheme that the utility model adopted is: the holder of a kind of automotive seat waist; Comprise pedestal, dome element, actuator, drag-line, described dome element one end slides and is located on the pedestal, and the dome element other end fixedly is located on the pedestal; Described drag-line one end is connected with actuator, is provided with leverage between the sliding end of the described drag-line other end and dome element.
Described leverage comprises the lever sheet, and the fulcrum of lever sheet is connected with the fixed end of dome element through pull bar, and the power point of lever sheet one end is connected with drag-line, and the resistance point of the lever sheet other end is connected with the sliding end of dome element.
The resistance point of the described lever sheet other end is connected through extension spring with the sliding end of dome element.
The utility model adopts such structure; Have the following advantages: laborsaving through leverage, the tensile force f of pull bar of making a concerted effort to equal of the tensile force f 2 of pull of steel wire F1 and extension spring to dome element, the tensile force f 2 of its pull of steel wire F1 and extension spring is all less than the tensile force f of pull bar to dome element; Therefore; Reduced pull of steel wire, and can select the extension spring of less pulling force for use, handwheel is regulated easy and convenient.This Seat lumbar functional reliability is good, is not prone to steel rope and breaks the phenomenon that comes off with the steel rope head.
Description of drawings
The mark of facing down among expressed content of each width of cloth accompanying drawing of this specification sheets and the figure is made brief description:
Fig. 1 is the utility model automotive seat waist holder organigram.
Fig. 2 is the utility model leverage organigram.
Among the figure: 1. actuator, 2. drag-line, 3. pedestal, 4. dome element, 40. sliding ends, 41. fixed ends, 5. pull bar, 6. leverage, 60. lever sheets, 61. extension springs, A. power point, B. resistance point, O. fulcrum.
The specific embodiment
Contrast accompanying drawing below,, the specific embodiment of the utility model is done further detailed explanation through description to embodiment.
As depicted in figs. 1 and 2, the holder of a kind of automotive seat waist comprises pedestal 3, dome element 4, actuator 1, drag-line 2, and dome element 4 one ends slide and are located on the pedestal 3, and dome element 4 other ends fixedly are located on the pedestal 3, and drag-line 2 one ends are connected with actuator 1; In order to reduce the pulling force that drag-line bears, the waist holder is easy to adjust, is provided with leverage 6 between the sliding end 40 of drag-line 2 other ends and dome element 4.
Preferably; Leverage 6 comprises lever sheet 60; The fulcrum O of lever sheet 60 is connected with the fixed end 41 of dome element 4 through pull bar 5, and the power point A of lever sheet 60 1 ends is connected with drag-line 2, and the resistance point B of lever sheet 60 other ends is connected with the sliding end 40 of dome element 4.
In order to make the internal state after dome element 4 arches upward become elasticity by rigidity, the resistance point B of described lever sheet 60 other ends is connected through extension spring 61 with the sliding end 40 of dome element 4.During the strength after dome element receives the driver and conductor, leaned on; Because the stretching action of extension spring 61 can suitably be oppressed dome element and produce small distortion, therefore; When vehicle jolts; The waist holder has just possessed certain self pooling feature, and the applying degree of human body and back of seat is better, takes more comfortable.
Actuator 1 can be handwheel or automatically controlled strainer.Drag-line 2 preferred steel ropes.
In the utility model; Laborsaving through leverage; Because being connected through pull bar on the fixed end of dome element, the fulcrum of lever sheet can not produce displacement; The power arm of lever sheet prizes resistance arm, and the sliding end that drives extension spring traction dome element is made motion of translation along pedestal, thereby the degree of arching upward of realizing dome element is regulated.Wherein, The tensile force f of pull bar of making a concerted effort to equal of the tensile force f 2 of pull of steel wire F1 and extension spring to dome element; The tensile force f 2 of its pull of steel wire F1 and extension spring all less than the tensile force f of pull bar to dome element, therefore, has reduced pull of steel wire; And the extension spring that can select less pulling force for use, the adjusting of handwheel is easy and convenient.
Combine accompanying drawing that the utility model has been carried out exemplary description above; Obviously the concrete realization of the utility model does not receive the restriction of aforesaid way; As long as adopted the design of the utility model and the improvement of the various unsubstantialities that technical scheme is carried out; Or the design of the utility model and technical scheme are directly applied to other occasion without improving, all within the protection domain of the utility model.
Claims (3)
1. automotive seat waist holder; Comprise pedestal (3), dome element (4), actuator (1), drag-line (2); Described dome element (4) one ends slide and are located on the pedestal (3); Dome element (4) other end fixedly is located on the pedestal (3), and described drag-line (2) one ends are connected with actuator (1), it is characterized in that: be provided with leverage (6) between the sliding end (40) of described drag-line (2) other end and dome element (4).
2. automotive seat waist as claimed in claim 1 holder; It is characterized in that: described leverage (6) comprises lever sheet (60); The fulcrum (0) of lever sheet (60) is connected with the fixed end (41) of dome element (4) through pull bar (5); The power point (A) of lever sheet (60) one ends is connected with drag-line (2), and the resistance point (B) of lever sheet (60) other end is connected with the sliding end (40) of dome element (4).
3. automotive seat waist as claimed in claim 2 holder is characterized in that: the resistance point (B) of described lever sheet (60) other end is connected through extension spring (61) with the sliding end (40) of dome element (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200935814U CN202557365U (en) | 2012-03-13 | 2012-03-13 | Vehicle seat lumbar support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200935814U CN202557365U (en) | 2012-03-13 | 2012-03-13 | Vehicle seat lumbar support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202557365U true CN202557365U (en) | 2012-11-28 |
Family
ID=47207056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200935814U Expired - Fee Related CN202557365U (en) | 2012-03-13 | 2012-03-13 | Vehicle seat lumbar support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202557365U (en) |
-
2012
- 2012-03-13 CN CN2012200935814U patent/CN202557365U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121128 Termination date: 20150313 |
|
| EXPY | Termination of patent right or utility model |