CN111516573A - Seat armrest adjustment mechanism assembly - Google Patents
Seat armrest adjustment mechanism assembly Download PDFInfo
- Publication number
- CN111516573A CN111516573A CN202010485503.8A CN202010485503A CN111516573A CN 111516573 A CN111516573 A CN 111516573A CN 202010485503 A CN202010485503 A CN 202010485503A CN 111516573 A CN111516573 A CN 111516573A
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- CN
- China
- Prior art keywords
- seat
- ratchet wheel
- pawl
- shaft
- mechanism assembly
- 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.)
- Pending
Links
- 238000009434 installation Methods 0.000 claims description 3
- 239000008358 core component Substances 0.000 abstract description 4
- 125000006850 spacer group Chemical group 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
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
- B60N2/75—Arm-rests
- B60N2/763—Arm-rests adjustable
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/54—Supports for the arms
- A47C7/541—Supports for the arms of adjustable type
-
- 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
- B60N2/75—Arm-rests
- B60N2/763—Arm-rests adjustable
- B60N2/77—Height adjustment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D33/00—Seats
- B61D33/0007—Details; Accessories
- B61D33/005—Head, arm or footrests
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Seats For Vehicles (AREA)
Abstract
The invention relates to a seat armrest adjusting mechanism assembly which comprises a ratchet wheel, a pawl and a tooth shielding plate, wherein the ratchet wheel is fixedly connected with an extending shaft of a seat framework; the pawl is matched with the ratchet wheel and rotates around the axis of the ratchet wheel along with the armrest; the cover toothed plate and the ratchet wheel are arranged side by side and sleeved on the extending shaft of the seat framework to rotate; the outer diameter of the tooth shielding part on the tooth shielding plate is larger than that of the ratchet on the ratchet wheel and is used for shielding the ratchet; the pawl covers the shutter plate and the ratchet wheel simultaneously in the thickness direction. The multi-gear height adjusting device is used for multi-gear height adjustment of the seat armrest, supports the arms of passengers and improves the comfort of seat adjustment. Aiming at different handrails, a universal core component is adopted, and only parts related to modeling need to be changed, so that the development cost and the development period can be saved.
Description
Technical Field
The invention relates to a seat armrest adjusting mechanism assembly, which is particularly suitable for seats of vehicles such as automobiles, trains and the like and can be widely applied to the industry of household seats.
Background
The armrest structure of the existing automobile seat is mainly an integral armrest as shown in fig. 5, and has a gear adjusting function. The existing seat armrest adjusting mechanism and the armrest body are of an integrated structure, so that the armrest shapes are different when seats of different vehicle types are different, different armrests need to be developed again, almost all parts need to be developed again, and aiming at the defect, the core component is poor in universality, high in development cost and long in development period.
Disclosure of Invention
The invention aims to provide a seat armrest adjusting mechanism assembly which is used for multi-gear height adjustment of a seat armrest, supports the arms of passengers and improves the comfort of seat adjustment.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the utility model provides a seat armrest adjustment mechanism assembly which characterized in that: comprises a ratchet wheel 1, a pawl 2 and a toothed shielding plate 3,
the ratchet wheel 1 is used for being fixedly connected with an extending shaft of the seat framework;
the pawl 2 is matched with the ratchet wheel 1 and rotates around the axis of the ratchet wheel 1 along with the armrest;
the shutter plate 3 and the ratchet wheel 1 are arranged side by side and sleeved on an extending shaft of the seat framework to rotate; the outer diameter of the tooth shielding part on the tooth shielding plate 3 is larger than the outer diameter of the ratchet on the ratchet wheel 1 and is used for shielding the ratchet; the pawl 2 covers both the shutter plate 3 and the ratchet 1 in the thickness direction.
Furthermore, the axle center of the ratchet wheel 1 is provided with a spline axle hole 12 which is connected with a protruding axle key of the seat framework.
Furthermore, a circular hole 14 is formed in the ratchet wheel 1, and an arc-shaped waist-shaped hole 15 is formed in the position, corresponding to the circular hole 14, of the toothed shielding plate 3; a limit pin 8 is inserted into the circular hole 14, and the limit pin 8 also passes through the kidney-shaped hole 15.
Further, the pawl 2 is fixed on a pawl shaft 4, a coil spring 5 is further arranged on the pawl shaft 4, a hook 16 is arranged at the outer end of the coil spring 5, and the hook 16 is hooked on the limit pin 8.
Furthermore, the adjusting mechanism assembly further comprises a box body 7 and a cover plate 6 fixedly covering the box body 7, the ratchet wheel 1, the pawl 2 and the tooth shielding plate 3 are all located in the box body 7, and two ends of the pawl shaft 4 are respectively in rotating connection with the box body 7 and the cover plate 6; during installation, the cover plate 6 is fixedly connected with the seat armrests, the whole adjusting mechanism assembly is installed on a seat framework extension shaft, and the seat framework extension shaft sequentially penetrates through the box body 7, the toothed shielding plate 3, the ratchet 1 and the cover plate 6.
Furthermore, a shaft seat 11 for installing a protruding shaft of the seat framework is arranged in the box body 7.
Furthermore, a clamp spring 10 used for clamping a retaining groove in the seat framework extension shaft is further arranged in the box body 7, so that the seat framework extension shaft is prevented from axially falling out.
The invention has the beneficial effects that:
(1) the multi-gear height adjusting device is used for multi-gear height adjustment of the seat armrest, supports the arms of passengers and improves the comfort of seat adjustment. Aiming at different handrails, a universal core component is adopted, and only parts (a cover plate and a box body) related to the shape are required to be changed, so that the development cost and the development period can be saved.
(2) The independent core part is integrally designed, the core part can be fixedly connected to the handrail, the special-shaped shaft extending from the framework backrest extends into the core part for fixing, the handrail and the special-shaped shaft generate rotary motion through the core part, and meanwhile, gear adjustment is carried out, so that the handrail can be fixed at different high and low positions relative to the backrest, and the comfort is improved.
Drawings
FIG. 1 is an exploded view of a seat arm adjustment mechanism assembly according to one embodiment.
FIG. 2 is a schematic diagram of the core components of a seat arm rest adjustment mechanism assembly according to one embodiment.
Fig. 3 is a schematic view of the embodiment when the armrest is lowered.
Fig. 4 is a schematic view of the embodiment when the armrest is received upward.
FIG. 5 is an overall schematic view of a seat armrest adjustment mechanism assembly according to an embodiment.
In the figure: ratchet 1, pawl 2, toothed plate 3, pawl axle 4, wind spring 5, apron 6, box body 7, spacer pin 8, ratchet base 9, jump ring 10, axle bed 11, spline shaft hole 12, circular shaft hole 13, circular port 14, waist type hole 15, crotch 16.
Detailed Description
In order to better understand the present invention, the following embodiments are further described.
As shown in fig. 1 and 2, the armrest adjustment mechanism assembly comprises a box body 7, a cover plate 6 fixedly covering the box body 7, a ratchet 1, a pawl 2 and a toothed shielding plate 3, wherein the ratchet 1, the pawl 2 and the toothed shielding plate 3 are all located in the box body 7.
The axle center of the ratchet wheel 1 is provided with a spline axle hole 12 which is connected with a protruding axle key of the seat framework.
The pawl 2 is matched with the ratchet wheel 1 and rotates around the axis of the ratchet wheel 1 along with the seat armrest (namely, the axis of the extending shaft of the seat framework).
The shutter plate 3 and the ratchet wheel 1 are arranged side by side and sleeved on an extending shaft of the seat framework to rotate; the outer diameter of the tooth shielding part on the tooth shielding plate 3 is larger than the outer diameter of the ratchet on the ratchet wheel 1 and is used for shielding the ratchet; the pawl 2 covers both the shutter plate 3 and the ratchet 1 in the thickness direction.
A circular hole 14 is formed in the ratchet wheel 1, and an arc-shaped waist-shaped hole 15 is formed in the position, corresponding to the circular hole 14, of the toothed shielding plate 3; a limit pin 8 is inserted into the circular hole 14, and the limit pin 8 also passes through the kidney-shaped hole 15. The pawl 2 is fixed on a pawl shaft 4, a coil spring 5 is further arranged on the pawl shaft 4, a hook 16 is arranged at the outer end of the coil spring 5, and the hook 16 is hooked on the limit pin 8.
Two ends of the pawl shaft 4 are respectively and rotatably connected with the box body 7 and the cover plate 6; during installation, the cover plate 6 is fixedly connected with the seat armrests, the whole adjusting mechanism assembly is installed on a seat framework extension shaft, and the seat framework extension shaft sequentially penetrates through the box body 7, the toothed shielding plate 3, the ratchet 1, the ratchet base 9 and the cover plate 6. The ratchet 1 is mounted on a ratchet base 9, and the ratchet base 9 is mounted on the cover plate 6 and is rotatable with respect to the cover plate 6. The box body 7 is internally provided with a shaft seat 11 (a bearing seat and the like) for installing a projecting shaft of the seat framework. And a clamp spring 10 for clamping a retaining groove on the seat framework extension shaft is further arranged in the box body 7, so that the seat framework extension shaft is prevented from axially disengaging.
A use method and a principle of a seat armrest adjusting mechanism assembly are as follows:
(1) as shown in fig. 2, the whole adjusting mechanism assembly is fixedly connected with the armrest through the cover plate 6 and is connected with the seat through the seat framework extension shaft; the ratchet wheel 1 is fixed with an extending shaft of the seat framework, the pawl 2 is coupled with the box body 7 of the cover plate 6, and the pawl 2 can rotate around the axis of the extending shaft of the seat framework in a single direction and is limited by the ratchet on the ratchet wheel 1 in the reverse direction. The pawl 2 is tightly attached to the ratchet 1 by the force of the coil spring 5. The toothed shielding plate 3 is concentric with the ratchet wheel 1 and can rotate flexibly relatively, and the toothed shielding plate 3 can play a limiting role in meshing the ratchet wheel 1 and the pawl 2.
(2) As shown in fig. 3, when the armrest is retracted, the pawl 2 falls on the toothed shutter plate 3; during handrail downstream, the shielding plate 3 moves along with pawl 2 under the action of 2 frictional forces of pawl, and when the shielding plate 3 rotates the one end limit of waist type hole 15, the spacing shielding plate 3 stop motion of spacer pin 8, at this moment pawl 2 continues to rotate the lower extreme position of ratchet on ratchet 1 from the shielding tooth dropping card of shielding plate 3 by a certain distance.
As shown in fig. 4, when the armrest moves upward, the pawl 2 falls into the ratchet of the previous ratchet 1, so as to realize gear unidirectional adjustment, and simultaneously, the cover toothed plate 3 is pushed to rotate upward in a follow-up manner until the cover toothed plate 3 reaches the limit of the other end of the kidney-shaped hole 15, and is limited by the limit pin 8 to stop moving, and then the armrest continues to move for a while until the ratchet 1 falls onto the cover toothed plate 3, so that the armrest moves to the upper limit, and the next cycle can be started.
(3) As shown in fig. 1, the ratchet wheel base 9 is fixedly connected with the ratchet wheel 1 through a direction slot, and has the function of ensuring a certain damping torque when the handrail rotates. The clamp spring 10 is installed on the shaft seat 11, and the clamp spring 10 clamps the retaining groove of the seat frame extension shaft to prevent axial removal.
The above description is only an application example of the present invention, and certainly, the present invention should not be limited by this application, and therefore, the present invention is still within the protection scope of the present invention by equivalent changes made in the claims of the present invention.
Claims (7)
1. The utility model provides a seat armrest adjustment mechanism assembly which characterized in that: comprises a ratchet wheel (1), a pawl (2) and a toothed shielding plate (3),
the ratchet wheel (1) is used for being fixedly connected with an extending shaft of the seat framework;
the pawl (2) is matched with the ratchet wheel (1) and rotates around the axis of the ratchet wheel (1) along with the armrest;
the tooth shielding plate (3) and the ratchet wheel (1) are arranged side by side and sleeved on an extending shaft of the seat framework to rotate; the outer diameter of the tooth shielding part on the tooth shielding plate (3) is larger than the outer diameter of the ratchet at the ratchet wheel (1) and is used for shielding the ratchet; the pawl (2) covers the toothed shielding plate (3) and the ratchet wheel (1) in the thickness direction.
2. A seat arm adjustment mechanism assembly according to claim 1, wherein: the axle center of the ratchet wheel (1) is provided with a spline shaft hole (12) which is connected with a protruding shaft key of the seat framework.
3. A seat arm adjustment mechanism assembly according to claim 1, wherein: a circular hole (14) is formed in the ratchet wheel (1), and an arc-shaped waist-shaped hole (15) is formed in the position, corresponding to the circular hole (14), of the toothed shielding plate (3); a limiting pin (8) is inserted into the circular hole (14), and the limiting pin (8) simultaneously passes through the kidney-shaped hole (15).
4. A seat arm adjustment mechanism assembly according to claim 3, wherein: the pawl (2) is fixed on a pawl shaft (4), a coil spring (5) is further arranged on the pawl shaft (4), a hook (16) is arranged at the outer side end of the coil spring (5), and the hook (16) is hooked on the limiting pin (8).
5. A chair armrest adjustment mechanism assembly as claimed in claim 4 wherein: the adjusting mechanism assembly further comprises a box body (7) and a cover plate (6) fixedly covered on the box body (7), the ratchet wheel (1), the pawl (2) and the tooth shielding plate (3) are all located in the box body (7), and two ends of the pawl shaft (4) are respectively in rotating connection with the box body (7) and the cover plate (6); during installation, apron (6) and armrest fixed connection, whole adjustment mechanism assembly install on the seat skeleton projecting shaft, the seat skeleton projecting shaft passes box body (7), hides toothed plate (3), ratchet (1) and apron (6) in proper order.
6. A seat arm adjustment mechanism assembly according to claim 5, wherein: a shaft seat (11) for installing a seat framework extension shaft is arranged in the box body (7).
7. A chair armrest adjustment mechanism assembly as claimed in claim 5 or 6, wherein: the clamping spring (10) used for clamping the retaining groove in the seat framework extension shaft is further arranged in the box body (7), and the seat framework extension shaft is prevented from axially disengaging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010485503.8A CN111516573A (en) | 2020-06-01 | 2020-06-01 | Seat armrest adjustment mechanism assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010485503.8A CN111516573A (en) | 2020-06-01 | 2020-06-01 | Seat armrest adjustment mechanism assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111516573A true CN111516573A (en) | 2020-08-11 |
Family
ID=71909305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010485503.8A Pending CN111516573A (en) | 2020-06-01 | 2020-06-01 | Seat armrest adjustment mechanism assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111516573A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112757984A (en) * | 2021-02-04 | 2021-05-07 | 重庆宏立至信科技发展集团有限公司 | Stepped adjusting mechanism with boosting locking function for seat |
| CN114872600A (en) * | 2022-06-16 | 2022-08-09 | 江铃汽车股份有限公司 | Car handrail with many gears are adjusted |
| CN115257488A (en) * | 2022-08-08 | 2022-11-01 | 明阳科技（苏州）股份有限公司 | Seat armrest adjusting device of one-way locking |
-
2020
- 2020-06-01 CN CN202010485503.8A patent/CN111516573A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112757984A (en) * | 2021-02-04 | 2021-05-07 | 重庆宏立至信科技发展集团有限公司 | Stepped adjusting mechanism with boosting locking function for seat |
| CN112757984B (en) * | 2021-02-04 | 2022-03-11 | 麦格纳座椅研发(重庆)有限公司 | Stepped adjusting mechanism with boosting locking function for seat |
| CN114872600A (en) * | 2022-06-16 | 2022-08-09 | 江铃汽车股份有限公司 | Car handrail with many gears are adjusted |
| CN115257488A (en) * | 2022-08-08 | 2022-11-01 | 明阳科技（苏州）股份有限公司 | Seat armrest adjusting device of one-way locking |
| CN115257488B (en) * | 2022-08-08 | 2023-11-17 | 明阳科技（苏州）股份有限公司 | Armrest adjusting device of seat of one-way locking |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Country or region after: China Address after: 441000 No. 98 Huangpi Avenue, Huopai Industrial Park, Xiangzhou Economic Development Zone, Xiangyang City, Hubei Province Applicant after: Hubei Jifeng Intelligent Technology Co.,Ltd. Address before: 441116 xiafeng village, hopai Town, Xiangzhou District, Xiangyang City, Hubei Province Applicant before: JIFENG AUTOMOBILE TECHNOLOGY XIANGYANG Co.,Ltd. Country or region before: China |