CN108263260B - Automobile seat backrest waist support control device - Google Patents
Automobile seat backrest waist support control device Download PDFInfo
- Publication number
- CN108263260B CN108263260B CN201810133022.3A CN201810133022A CN108263260B CN 108263260 B CN108263260 B CN 108263260B CN 201810133022 A CN201810133022 A CN 201810133022A CN 108263260 B CN108263260 B CN 108263260B
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- China
- Prior art keywords
- cover plate
- pawl
- shaft
- inner cover
- driven
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- 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.)
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 21
- 239000010959 steel Substances 0.000 claims abstract description 21
- 238000004804 winding Methods 0.000 claims 2
- 238000005452 bending Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/64—Back-rests or cushions
- B60N2/66—Lumbar supports
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/64—Back-rests or cushions
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chair Legs, Seat Parts, And Backrests (AREA)
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
- Seats For Vehicles (AREA)
Abstract
A lumbar support control device of an automobile seat backrest comprises a backrest side plate, a bracket, an inner cover plate, a main shaft, a driving wheel, a driven shaft, a driven wheel and a steel wire; the support is fixedly arranged on the backrest side plate, the inner cover plate is fixedly connected with the support, the main shaft and the driven shaft are rotatably arranged on the inner cover plate, the main shaft is fixedly sleeved with a driving wheel, the driven shaft is fixedly sleeved with a driven wheel, and the driving wheel and the driven wheel are meshed with each other; a reel is fixedly sleeved on the shaft, and a steel wire is wound on the outer edge of the reel, so that the steel wire is driven to be tensioned and loosened when the reel rotates; the other end of the steel wire is connected with a backrest grid on the automobile seat; the main shaft rotates under the action of external force, and finally the reel rotates to drive the steel wire to tighten, arch and loosen the backrest grid on the automobile seat, so that the waist of the backrest of the automobile seat is adjusted. The invention has compact structure and high comfort level.
Description
Technical Field
The invention relates to a lumbar support control device for a car seat backrest, in particular to a manual lumbar support control device for the car seat backrest.
Background
Automotive seating is an important component in an automobile that provides support and safety protection for passengers. As the market competition for automobiles becomes more and more intense, seat comfort is also becoming an important evaluation criterion for evaluating the overall seating of an automobile, and thus the overall vehicle. The backrest lumbar support is an important comfort improvement part on the seat framework. The backrest waist support is assembled on the backrest framework assembly and used for supporting the waist of a passenger and relieving driving fatigue.
The prior automobile seat waist support mainly comprises a traditional fixed waist support and an adjustable waist support, wherein the adjustable waist support is divided into an electric type and a manual type, and is driven by a motor and a mechanical transmission adjusting device respectively, and better support is provided for the waist of a passenger by adjusting the bulge and restoration of a backrest grid.
The manual waist support adjusting device of the seat commonly used in the market at present has the defects of complex main structure and higher cost caused by a plurality of tiny parts; the unsmooth operation causes the problem of poor hand feeling of the user operation.
Disclosure of Invention
The invention aims to provide a lumbar support control device for a backrest of an automobile seat, which is simple in structure and high in reliability.
In order to solve the technical problems, the invention adopts the following technical scheme: a lumbar support control device of an automobile seat backrest comprises a backrest side plate, a bracket, an inner cover plate, a main shaft, a driving wheel, a driven shaft, a driven wheel and a steel wire;
the support is fixed on the backrest side plate, the inner cover plate is fixedly connected with the support, the main shaft and the driven shaft are rotatably arranged on the inner cover plate, the main shaft is fixedly sleeved with a driving wheel, the driven shaft is fixedly sleeved with a driven wheel, and the driving wheel and the driven wheel are meshed with each other; a reel is fixedly sleeved on the shaft, and a steel wire is wound on the outer edge of the reel, so that the steel wire is driven to be tensioned and loosened when the reel rotates; the other end of the steel wire is connected with a backrest grid on the automobile seat;
the inner cover plate is fixedly provided with a pin shaft, a spring is wound on the pin shaft, and a pawl is rotatably arranged on the pin shaft; one end of the spring is arranged on the inner cover plate, and the other end of the spring is arranged on the pawl; a pawl lug matched with the cam is arranged in the middle of the pawl, and one end of the pawl is matched with the ratchet wheel; as the spindle rotates, the cam will periodically disengage and engage the pawl; the ratchet wheel and the pawl are separated from each other when the cam and the pawl are separated from each other, and the ratchet wheel and the pawl are engaged with each other when the cam and the pawl are engaged with each other;
the main shaft rotates under the action of external force, the main shaft drives the driving wheel and the cam to rotate, and the cam jacks the pawl, so that the pawl is separated from the ratchet wheel, and the locking of the main shaft is released; and then the torque is transmitted to the driven wheel by the driving wheel, the driven wheel drives the driven shaft to rotate, the driven shaft drives the reel to rotate, and the steel wire is driven to tighten, arch and loosen the backrest mesh on the automobile seat when the reel rotates, so that the waist of the seat backrest is adjusted.
Preferably, the bracket is fixedly provided with an inner cover plate, a clamping plate and an outer cover plate.
Preferably, the spindle passes through the outer cover plate and the clamping plate and is rotatably connected with the inner cover plate; the shaft passes through the outer cover plate and the clamping plate and is rotatably connected with the inner cover plate.
Preferably, the steel wire is sleeved with a cutting sleeve, and the cutting sleeve is arranged on the inner cover plate.
Preferably, the inner cover plate, the clamping plate and the outer cover plate are mounted on the bracket through bolts; the inner cover plate, the clamping plate and the outer cover plate are mutually fixed by means of screws.
Preferably, the main shaft is provided with a spline.
Compared with the prior art, the invention has the following beneficial effects:
1) The invention has compact structure, less number of needed parts and high reliability.
2) The invention has simple part structure, reduces the product quality cost and improves the manufacturability of the product.
3) The invention has convenient operation and improves the comfort of users.
4) The invention can be suitable for most automobile seats in the market and has good universality.
Drawings
FIG. 1 is an assembly view of the lumbar support control device of the automotive seat back of the present invention with the clamping plates and outer cover plates removed;
FIG. 2 is an enlarged assembly view of the lumbar support control device for a car seat back according to the present invention;
FIG. 3 is an exploded view of the lumbar support control device for a car seat back according to the present invention;
FIG. 4 is an assembly view of the lumbar support control device of the automotive seat back with the back side plate removed;
FIG. 5 is an assembly view of the internal components of the lumbar support control device for an automotive seat back according to the present invention;
FIG. 6 is an exploded view of another view of the lumbar support control device for an automotive seat back according to the present invention;
FIG. 7 is an assembly view of the internal components of the lumbar support control device of the automotive seat back according to another view of the present invention;
fig. 8 is a schematic view of the pawl, cam and ratchet of the lumbar support control device of the car seat back of the present invention.
In the figure: 1-a backrest side plate; 2-a bracket; 3-an inner cover plate; 4-clamping plates; 5-an outer cover plate; 6-a screw; 7-a bolt; 8-a main shaft; 9-from the shaft; 10-a driving wheel; 11-a cam; 12-driven wheel; 13-ratchet wheel; 14-pawl; 15-pin shafts; 16-a spring; 17-reel; 18-steel wire; 19-cutting sleeve; 1401-detent bump.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific examples, which are not intended to limit the invention, so that those skilled in the art may better understand the invention and practice it.
As shown in fig. 1 to 8, the present invention is integrally fixed to a back side plate 1 by a bracket 2, wherein a plate for fixing and mounting other parts includes an inner cover plate 3, a clamping plate 4, an outer cover plate 5; the middle part of the car seat is provided with a backrest grid (not shown in the figure) corresponding to the waist position of the passenger.
The bracket 2 is approximately C-shaped, namely, the upper part and the lower part of a plane plate are inwards bent, the middle part of the bracket 2 is welded on the side plate 1 of the backrest, and the upper bending part and the lower bending part are respectively provided with screw holes for installing other plates. The clamping plate 4 is a flat plate, and besides the flat plate structure with the same shape as the clamping plate 4, the edges of the inner cover plate 3 and the outer cover plate 5 are also provided with a circle of flanging, so that the inner cover plate 3, the clamping plate 4 and the outer cover plate 5 form a sealing structure for protecting other transmission parts; the inner cover plate 3, the clamping plate 4 and the outer cover plate 5 are fixed together through two screws 6, and the inner cover plate 3, the clamping plate 4 and the outer cover plate 5 are fixedly arranged on the bracket 2 through two bolts 7.
One end of the main shaft 8 is provided with a spline and extends out of the outer cover plate 5, wherein the spline is used for being matched with a plastic hand wheel, and a user can operate the hand wheel to adjust the backrest waist support. The main shaft 8 and the secondary shaft 9 penetrate through the clamping plate 4, the outer cover plate 5 and are rotatably arranged on the inner cover plate 3. The spindle 8 is welded with a driving wheel 10 at a section between the outer cover plate 5 and the clamping plate 4, and is welded with a cam 11 at a section between the clamping plate 4 and the inner cover plate 3. A driven wheel 12 is welded to the shaft 9 at a section between the outer cover plate 5 and the clamping plate 4, a ratchet wheel 13 is welded to a section between the clamping plate 4 and the inner cover plate 3, and the driving wheel 10 is engaged with the driven wheel 12. A pin shaft 15 is fixedly arranged on the inner cover plate 3, and a spring 16 and a rotatable pawl 14 are sleeved on the pin shaft 15; six bosses and six grooves are arranged on the cam 11, and a pawl bump 1401 matched with the grooves is arranged in the middle of the pawl 14; the other end of the pawl 14 is engaged with the ratchet 13.
The reel 17 is fixed to the trailing end of the driven shaft, and a wire 18 is wound around the outer edge of the reel 17. The steel wire 18 is sleeved with a cutting sleeve 19 and is connected with the backrest grid; the clamping sleeve 19 is fixedly mounted on the inner cover plate 3. When the reel 17 rotates, the steel wire 18 is driven to tighten or loosen, and the steel wire 18 drives the backrest grid on the automobile seat to enable the backrest grid to arch outwards or lay flat, so that seat waist adjustment is achieved.
The working principle of the invention is as follows:
if the backrest grid is required to be adjusted to be in an arched state, an external force is applied to the main shaft 8 through the operation of the hand wheel to rotate, so that the driving wheel 10 and the cam 11 are driven to rotate. With the rotation of the spindle 8, the cam 11 is periodically separated from and contacted with the pawl 14, namely, when the boss on the cam 11 is contacted with the pawl bump 1401 on the pawl 14, the pawl 14 is sprung, the pawl 14 is separated from the ratchet 13, and the spring 16 is stressed, so that the invention is in an unlocked state; the cam 11 then continues to rotate and the spring 16 releases the force which is received to urge the pawl 14 back so that the recess in the cam 11 contacts the pawl tab 1401 of the pawl 14 and the pawl 14 reengages the ratchet 13, which is the locked condition.
So continuously rotate main shaft 8, action wheel 10 just constantly transmits the moment of torsion to from driving wheel 12, and from driving wheel 12 drives from axle 9 rotation, and the rotation of reel 17 is driven to the axle 9, and reel 17 tightens up wire 18 and makes wire 18 twine on reel 17, finally drives the seat outwards and backs the net arch, and the waist holds in the palm at this moment and has been the arch state. In this condition, the wire 18 is forced and has a tendency to relax in a reverse rotation, preventing the wire 18 from rebounding due to the constantly high frequency co-locking of the cam 11 and pawl 14 during adjustment.
I.e. during adjustment, the bracket 2, the inner cover 3, the clamping plate 4, the outer cover 5, the screws 6, the bolts 8, the pins 15 are stationary with respect to the back side plate 1, while the spindle 8, the shaft 9, the driving wheel 10, the cam 11, the driven wheel 12, the ratchet 13, the pawl 14, the spring 16, the reel 17, the wire 18 are all moving.
When the backrest mesh is to be adjusted to a relaxed state, the principle is the same as described above, and the main shaft 9 is forced to rotate in the opposite direction.
The above-mentioned embodiments of the present invention are not intended to limit the scope of the present invention, and the embodiments of the present invention are not limited thereto, and all kinds of modifications, substitutions or alterations made to the above-mentioned structures of the present invention according to the above-mentioned general knowledge and conventional means of the art without departing from the basic technical ideas of the present invention shall fall within the scope of the present invention.
Claims (5)
1. The utility model provides a car seat back waist holds in palm controlling means which characterized in that: comprises a backrest side plate (1),
A bracket (2), an inner cover plate (3), a main shaft (8), a driving wheel (10), a driven shaft (9), a driven wheel (12),
The steel wire (18) is provided with a spline on the main shaft (8);
the bracket (2) is fixedly arranged on the backrest side plate (1), and the inner cover plate (3) is fixedly connected with the bracket (2)
The main shaft (8) and the slave shaft (9) are rotatably arranged on the inner cover plate (3), the main shaft (8) is fixedly sleeved with a driving wheel (10), the slave shaft (9) is fixedly sleeved with a driven wheel (12), and the driving wheel (10) and the driven wheel (12) are meshed with each other; a reel (17) is fixedly sleeved on the shaft (9), and a steel wire (18) is wound on the outer edge of the reel (17), so that the steel wire (18) is driven to be tensioned and loosened when the reel (17) rotates; the other end of the steel wire (18) is connected with a backrest grid on the automobile seat;
the inner cover plate (3) is fixedly provided with a pin shaft (15), a spring (16) is wound on the pin shaft, and a pawl (14) is rotatably arranged on the pin shaft; one end of the spring (16) is arranged on the inner cover plate (3), and the other end is arranged on the pawl (14); a pawl bump (1401) matched with the cam (11) is arranged in the middle of the pawl (14), and one end of the pawl (14) is matched with the ratchet wheel (13); as the spindle (8) rotates, the cam (11) will periodically disengage and engage with the pawl (14); the ratchet wheel (13) and the pawl (14) are separated from each other when the cam (11) and the pawl (14) are separated from each other, and the ratchet wheel (13) and the pawl (14) are engaged with each other when the cam (11) and the pawl (14) are engaged with each other;
the main shaft (8) rotates under the action of external force, the main shaft (8) drives the driving wheel (10) and the cam (11) to rotate, the cam (11) jacks up the pawl (14), the pawl (14) is separated from the ratchet wheel (13), and locking of the shaft (9) is released; and then the torque is transmitted to the driven wheel (12) by the driving wheel (10), the driven wheel (12) drives the driven shaft (9) to rotate, the winding wheel (17) is driven by the driven shaft (9) to rotate, and the steel wire (18) is driven to tighten, arch and loosen the backrest mesh on the automobile seat when the winding wheel (17) rotates, so that the waist of the backrest of the automobile seat is adjusted.
2. The automobile seat back lumbar support control device according to claim 1, wherein: an inner cover plate (3), a clamping plate (4) and an outer cover plate (5) are fixed on the bracket (2).
3. The automobile seat back lumbar support control device according to claim 2, characterized in that: the main shaft (8) passes through the outer cover plate (5) and the clamping plate (4) and is rotatably connected with the inner cover plate (3); the shaft (9) passes through the outer cover plate (5) and the clamping plate (4) and is rotatably connected with the inner cover plate (3).
4. The automobile seat back lumbar support control device according to claim 3, characterized in that: the steel wire (18) is sleeved with a cutting sleeve (19), and the cutting sleeve (19) is arranged on the inner cover plate (3).
5. The lumbar support control device for a car seat back according to any one of claims 1 to 4, wherein: the inner cover plate (3), the clamping plate (4) and the outer cover plate (5) are arranged on the bracket (2) through bolts (7); the inner cover plate (3), the clamping plate (4) and the outer cover plate (5) are mutually fixed by means of screws (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810133022.3A CN108263260B (en) | 2018-02-09 | 2018-02-09 | Automobile seat backrest waist support control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810133022.3A CN108263260B (en) | 2018-02-09 | 2018-02-09 | Automobile seat backrest waist support control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108263260A CN108263260A (en) | 2018-07-10 |
| CN108263260B true CN108263260B (en) | 2024-02-23 |
Family
ID=62773948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810133022.3A Active CN108263260B (en) | 2018-02-09 | 2018-02-09 | Automobile seat backrest waist support control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108263260B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108891318B (en) * | 2018-08-30 | 2023-10-13 | 福州联泓交通器材有限公司 | Manual automobile seat waist supporting mechanism and working method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4576410A (en) * | 1982-05-26 | 1986-03-18 | Aisen Seiki Kabushika Kaisha | Lumbar support for a backrest |
| WO2003029043A1 (en) * | 2001-10-03 | 2003-04-10 | L & P Property Management Company | Apparatus and method for return actuator |
| CN206374601U (en) * | 2016-12-01 | 2017-08-04 | 长春市新发展塑胶工业有限公司 | A kind of two-way grid type hand-operated waist support |
| CN207984641U (en) * | 2018-02-09 | 2018-10-19 | 广州汽车集团零部件有限公司 | A kind of motor vehicle seat back waist support control device |
-
2018
- 2018-02-09 CN CN201810133022.3A patent/CN108263260B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4576410A (en) * | 1982-05-26 | 1986-03-18 | Aisen Seiki Kabushika Kaisha | Lumbar support for a backrest |
| WO2003029043A1 (en) * | 2001-10-03 | 2003-04-10 | L & P Property Management Company | Apparatus and method for return actuator |
| CN206374601U (en) * | 2016-12-01 | 2017-08-04 | 长春市新发展塑胶工业有限公司 | A kind of two-way grid type hand-operated waist support |
| CN207984641U (en) * | 2018-02-09 | 2018-10-19 | 广州汽车集团零部件有限公司 | A kind of motor vehicle seat back waist support control device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108263260A (en) | 2018-07-10 |
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