CN110949202A - Self-locking structure of high-strength multi-point contact type angle adjuster of automobile seat - Google Patents
Self-locking structure of high-strength multi-point contact type angle adjuster of automobile seat Download PDFInfo
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- CN110949202A CN110949202A CN201911416114.3A CN201911416114A CN110949202A CN 110949202 A CN110949202 A CN 110949202A CN 201911416114 A CN201911416114 A CN 201911416114A CN 110949202 A CN110949202 A CN 110949202A
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- 230000008859 change Effects 0.000 claims description 21
- 238000009434 installation Methods 0.000 description 20
- 230000006872 improvement Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000005253 cladding Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Classifications
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- 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
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/22—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
- Seats For Vehicles (AREA)
Abstract
The invention relates to a high-strength multi-point contact type angle adjuster self-locking structure of an automobile seat, which comprises a fixed disc, wherein a driving shaft is arranged in the fixed disc, and a self-locking assembly is arranged between the driving shaft and the fixed disc; the self-locking assembly comprises a cam and a coil spring, the cam is mounted on the driving shaft, a tooth block is arranged between the cam and the fixed disk, the coil spring comprises a cam pre-tightening coil spring, the cam pre-tightening coil spring is arranged between the cam and the fixed disk, and the periphery of the fixed disk is provided with a movable disk. According to the invention, the plurality of tooth blocks are meshed with the tooth profile of the movable disc, so that the materials of the movable disc and the fixed disc are reduced, the thickness is reduced, the weight is reduced, the meshing of the plurality of tooth blocks can improve the locking strength, the plurality of tooth blocks are ingeniously meshed with the tooth profile of the movable disc through the cam curve and the tooth block curve, the number of angle adjusters is reduced, the weight of the seat is reduced, and the cost is reduced.
Description
Technical Field
The invention belongs to the technical field of automobile seat equipment, and relates to a high-strength multi-point contact type angle adjuster self-locking structure of an automobile seat.
Background
The existing automobile seat adjusting mechanisms are divided into two major categories according to the latest automobile industry standard (QC) in China, and one is an adjusting mechanism for adjusting the angle of a seat back according to fixed pitch (namely angle), which is called as a discontinuous seat back angle adjuster; the adjusting mechanism capable of randomly adjusting the angle of the seat back is called as a continuous seat back angle adjuster, is used for manually adjusting the angle of the seat back, and has the advantages of relatively simple structure, convenience in use, strong universality, low cost and the like, so that the application is wide; the latter is mostly used for the electric adjustment of the angle of the backrest of the seat, and is mostly used for medium and high grade automobile seats due to the relatively complex structure and higher production cost.
The seat backrest angle adjusters are symmetrically arranged on two sides of the seat, and driving shafts 5 of the angle adjusters on the two sides are connected through a synchronizing rod. The strength of the seat backrest angle adjuster before and after single locking is higher than 3000Nm, the stress point of the locking structure is single, and the seat backrest angle adjuster is easy to damage.
Disclosure of Invention
The invention aims to provide a high-strength multi-point contact type angle adjuster self-locking structure of an automobile seat, which is high in strength.
According to the technical scheme provided by the invention: a self-locking structure of a high-strength multi-point contact type angle adjuster of an automobile seat comprises a fixed disc, wherein a driving shaft is arranged in the fixed disc, and a self-locking assembly is arranged between the driving shaft and the fixed disc; the self-locking assembly comprises a cam and a coil spring, the cam is installed on the driving shaft, a tooth block is arranged between the cam and the fixed disc, the coil spring comprises a cam pre-tightening coil spring, the cam pre-tightening coil spring is arranged between the cam and the fixed disc, and a movable disc is arranged on the periphery of the fixed disc.
As a further improvement of the present invention, a driving shaft installation groove is formed in the fixed disk, one side of the driving shaft installation groove is communicated with the driving shaft through hole, a coil spring installation groove is formed in the periphery of the driving shaft installation groove, the coil spring installation groove is a cam coil spring installation groove, a coil spring positioning block is arranged in the coil spring installation groove, one side of the driving shaft installation groove is provided with a tooth block spacing block, and a tooth block sliding groove is formed between the tooth block spacing blocks.
As a further improvement of the invention, the middle part of the driving shaft is provided with a driving shaft mounting ring, one side of the driving shaft mounting ring is provided with a cam mounting shaft end, the periphery of the cam mounting shaft end is provided with a cam limiting block, the top surface of the cam limiting block is provided with a cam limiting surface, and one side of the cam limiting block is provided with a cam positioning block.
As a further improvement of the invention, a gear mounting hole is formed in the cam, a gear positioning groove is formed in the gear mounting hole, a cam coil spring convex block is arranged on the cam, and the periphery of the cam is a cam gradual-change surface.
As a further improvement of the invention, the middle part of the coil spring is provided with a coil spring positioning groove, and the end part of the coil spring is an elastic pre-tightening end; the coil spring is the cam pre-tightening coil spring.
In a further improvement of the present invention, the outer periphery of the tooth block is an outer tooth portion, and the inner periphery of the tooth block is a tooth block tapered surface.
As a further improvement of the invention, the inner periphery of the movable disk is provided with an inner gear ring meshed with the outer gear part on the outer periphery of the gear block.
As a further improvement of the invention, the coil spring positioning groove and the coil spring positioning block are semicircular.
As a further improvement of the present invention, the cam gradually-changing surface includes a first cam gradually-changing surface and a second cam gradually-changing surface.
As a further development of the invention, the tooth block progression surfaces comprise a first tooth block progression surface and a second tooth block progression surface.
Compared with the prior art, the invention has the following advantages:
1. the invention adopts the tooth-shaped engagement of a plurality of tooth blocks and the movable disc, reduces the materials of the movable disc and the fixed disc, has the thickness to reduce the weight, improves the locking strength by the engagement of 6 tooth blocks, and ingeniously engages the tooth shapes of the plurality of tooth blocks and the movable disc together through the curve of the cam and the tooth blocks.
2. The invention reduces the total weight of the angle adjuster to 0.35Kg, and the strength of the single angle adjuster before and after locking is higher than 3000Nm, thus being suitable for some customers with higher strength of the seat, reducing the weight of the seat by reducing one angle adjuster and reducing the cost by partially adopting the seat with the strength of the double-side angle adjuster before and after locking of the single angle adjuster of 2000 Nm.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a sectional view a-a of fig. 1.
FIG. 3 is a schematic structural view of the fixing plate of the present invention.
Fig. 4 is a schematic view of the cam and tooth block matching structure of the invention.
Fig. 5 is a schematic structural view of the cam of the present invention.
Fig. 6 is a schematic structural view of the tooth block of the present invention.
Fig. 7 is a schematic view showing the structure of the coil spring of the present invention.
Fig. 8 is a schematic view showing the structure of the installation of the coil spring of the present invention.
Fig. 9 is a schematic view of the construction of the drive shaft of the present invention.
Fig. 10 is a schematic structural diagram of the present invention at the time of locking.
Fig. 11 is a schematic structural diagram of the present invention at the start of unlocking.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
In the figures 1-11, the device comprises a fixed disc 1, a left side 1-1, a right side 1-2, a driving shaft installation groove 1-3, a driving shaft through hole 1-4, a coil spring installation groove 1-5, a coil spring positioning block 1-6, a tooth block spacing block 1-7, a tooth block sliding groove 1-8, a movable disc 2, a self-locking component 3, a cam 3-1, a gear installation hole 3-11, a gear positioning groove 3-12, a cam left side 3-13, a cam right side 3-14, a cam coil spring convex block 3-15, a cam gradual change surface 3-16, a first cam gradual change surface 3-161, a second cam gradual change surface 3-162, a tooth block 3-2, an external tooth part 3-21, a tooth block gradual change surface 3-22, a first tooth block gradual change surface 3-221, a second tooth block gradual change surface 3-222, a second tooth block gradual change surface 3-, 3-3 parts of coil spring, 3-31 parts of coil spring positioning groove, 3-32 parts of elastic pre-tightening end, 4 parts of cladding, 5 parts of driving shaft, 5-1 parts of driving shaft mounting ring, 5-2 parts of cam limiting block, 5-21 parts of driving shaft coil spring acting surface, 5-22 parts of cam limiting surface, 5-3 parts of cam positioning block, 5-4 parts of cam mounting shaft end and the like.
As shown in fig. 1-2, the invention relates to a high-strength multipoint contact type angle adjuster self-locking structure for an automobile seat, which comprises a fixed disc 1, as shown in fig. 3, the fixed disc 1 comprises a left surface 1-1, the reverse surface of the left surface 1-1 is a right surface 1-2, a driving shaft installation groove 1-3 is formed in the fixed disc 1, one side of the driving shaft installation groove 1-3 is communicated with a driving shaft through hole 1-4, coil spring installation grooves 1-5 are uniformly formed in the periphery of the driving shaft installation groove 1-3, the coil spring installation grooves 1-5 are cam coil spring installation grooves, and coil spring positioning blocks 1-6 are arranged in the coil spring. Tooth block spacing blocks 1-7 are arranged on one side of the driving shaft mounting groove 1-3 in six equal parts, and tooth block sliding grooves 1-8 are formed between the tooth block spacing blocks 1-7.
A driving shaft 5 is arranged in the fixed disc 1, as shown in fig. 9, a driving shaft mounting ring 5-1 is arranged in the middle of the driving shaft 5, a cam mounting shaft end 5-4 is arranged on one side of the driving shaft mounting ring 5-1, cam limiting blocks 5-2 are evenly arranged on the periphery 3 of the cam mounting shaft end 5-4 in an equal division mode, and cam limiting surfaces 5-22 are arranged on the top surface. One side of the cam limiting block 5-2 is provided with a cam positioning block 5-3. The cam limiting block 5-2 and the cam positioning block 5-3 are positioned on the same axis. The driving shaft mounting ring 5-1 is positioned in the driving shaft mounting groove 1-3, and the cam mounting shaft end 5-4 is positioned in the left surface 1-1 of the fixed disc 1.
As shown in fig. 2, a self-locking assembly 3 is disposed between the driving shaft 5 and the fixed disk 1 to ensure that the driving shaft 5 and the fixed disk 1 cannot move in a normal state.
The self-locking assembly 3 comprises a cam 3-1, a tooth block 3-2 and a coil spring 3-3, as shown in fig. 4-5, the cam 3-1 comprises a cam left side 3-13, the reverse side of the cam left side 3-13 is a cam right side 3-14, a gear mounting hole 3-11 is formed in the cam 3-1, the gear mounting hole 3-11 is matched with a cam mounting shaft end 5-4, gear positioning grooves 3-12 are uniformly formed in 3 equal parts of the gear mounting hole 3-11, and the gear positioning grooves 3-12 are matched with cam positioning blocks 5-3. Cam 3-1 has cam coil spring lugs 3-15 evenly distributed on right side 3-14 of the cam 3-3. The cam 3-1 is installed on the driving shaft 5, the cam installation shaft end 5-4 is located in the gear installation hole 3-11, the cam positioning block 5-3 is embedded into the gear positioning groove 3-12, the peripheral size of the cam limiting block 5-2 is larger than that of the cam positioning block 5-3, and the cam limiting face 5-22 is abutted against the end face, located on the right side 3-14 of the cam, of the cam 3-1, so that radial one-way limiting of the cam 3-1 and the driving shaft 5 is completed.
As shown in FIG. 7, coil spring positioning grooves 3-31 are formed in the middle of coil springs 3-3, the coil spring positioning grooves 3-31 are matched with coil spring positioning blocks 1-6, and elastic pre-tightening ends 3-32 are arranged at the end portions of the coil springs 3-3. As shown in fig. 8, the coil spring 3-3 is located in the coil spring mounting groove 1-5, the coil spring positioning block 1-6 is embedded into the coil spring positioning groove 3-31, the fixation of the coil spring 3-3 and the fixed disk 1 is completed, the coil spring 3-3 is a cam pre-tightening coil spring, and the elastic pre-tightening end 3-32 of the cam pre-tightening coil spring is abutted against the side surface of the cam coil spring convex block 3-15, so as to prevent the cam 3-1 from rotating counterclockwise (unlocking direction).
The tooth block 3-2 is arranged in the tooth block sliding groove 1-8 in a sliding mode, as shown in figure 6, the outer periphery of the tooth block 3-2 is provided with an outer tooth part 3-21, and the inner periphery of the tooth block 3-2 is abutted to the outer periphery of the cam 3-1. The outer periphery of the cam 3-1 is a cam gradual change surface 3-16, and the inner periphery of the tooth block 3-2 is a tooth block gradual change surface 3-22. When cam 3-1 rotates clockwise, the contact point of cam tapered surface 3-16 and tooth block tapered surface 3-22 expands outward. In the embodiment, the cam gradually-changing surfaces 3-16 comprise first cam gradually-changing surfaces 3-161 and second cam gradually-changing surfaces 3-162, the gear block gradually-changing surfaces 3-22 comprise first gear block gradually-changing surfaces 3-221 and second gear block gradually-changing surfaces 3-222, the first cam gradually-changing surfaces 3-161 are abutted against the first gear block gradually-changing surfaces 3-221, the second cam gradually-changing surfaces 3-162 are abutted against the second gear block gradually-changing surfaces 3-222, and the strength applied to the angle adjuster in the use process or the experiment process of the angle adjuster by the seat framework is borne in a sharing mode, so that the strength before and after locking of the single angle adjuster is improved.
The periphery of the fixed disc 1 is provided with a movable disc 2, and the inner periphery of the movable disc 2 is provided with an inner gear ring meshed with the outer gear part 3-21 on the periphery of the gear block 3-2.
The working process of the invention is as follows:
the angle adjusters are symmetrically arranged on the side surface of the seat. When locking is to be performed, the driving shaft 5 rotates clockwise, the cam positioning block 5-3 drives the cam 3-1 to rotate clockwise, the contact point of the first cam gradual change surface 3-161 and the first tooth block gradual change surface 3-221 and the contact point of the second cam gradual change surface 3-162 and the second tooth block gradual change surface 3-222 expand outwards, the tooth block 3-2 moves outwards along the tooth block sliding groove 1-8 in the radial direction until the outer tooth part 3-21 is meshed with the inner ring gear on the inner periphery of the movable disc 2, as shown in fig. 10. The movable disc 2 is locked, and the tooth blocks 3-2 and the driving shaft 5 cannot rotate clockwise. The elastic pretension end 3-32 of the cam pretension coil spring is propped against the side surface of the cam coil spring convex block 3-15, so that the cam 3-1 is prevented from rotating anticlockwise (unlocking direction).
When unlocking is needed (anticlockwise rotation), the driving wheel 5 anticlockwise rotates to drive the cam 3-1 to anticlockwise rotate, and unlocking is started.
Claims (10)
1. The utility model provides a car seat high strength multiple spot contact angle modulation ware auto-lock structure which characterized in that: the structure comprises a fixed disc (1), a driving shaft (5) is installed in the fixed disc (1), and a self-locking assembly (3) is arranged between the driving shaft (5) and the fixed disc (1); the self-locking assembly (3) comprises a cam (3-1) and a coil spring (3-3), the cam (3-1) is installed on a driving shaft (5), a tooth block (3-2) is arranged between the cam (3-1) and the fixed disc (1), the coil spring (3-3) comprises a cam pre-tightening coil spring, the cam (3-1) is arranged between the fixed disc (1) and the cam pre-tightening coil spring, and the periphery of the fixed disc (1) is provided with a movable disc (2).
2. The self-locking structure of the high-strength multi-point contact type angle adjuster of the automobile seat according to claim 1, characterized in that: drive shaft mounting grooves (1-3) are formed in the fixed disc (1), one sides of the drive shaft mounting grooves (1-3) are communicated with drive shaft through holes (1-4), coil spring mounting grooves (1-5) are formed in the peripheries of the drive shaft mounting grooves (1-3), the coil spring mounting grooves (1-5) are cam coil spring mounting grooves, coil spring positioning blocks (1-6) are arranged in the coil spring mounting grooves (1-5), tooth block spacing blocks (1-7) are arranged on one sides of the drive shaft mounting grooves (1-3), and tooth block sliding grooves (1-8) are formed between the tooth block spacing blocks (1-7).
3. The self-locking structure of the high-strength multi-point contact type angle adjuster of the automobile seat according to claim 1, characterized in that: the novel cam limiting device is characterized in that a driving shaft mounting ring (5-1) is arranged in the middle of the driving shaft (5), a cam mounting shaft end (5-4) is arranged on one side of the driving shaft mounting ring (5-1), a cam limiting block (5-2) is arranged on the periphery of the cam mounting shaft end (5-4), a cam limiting surface (5-22) is arranged on the top surface of the cam limiting block (5-2), and a cam positioning block (5-3) is arranged on one side of the cam limiting block (5-2).
4. The self-locking structure of the high-strength multi-point contact type angle adjuster of the automobile seat according to claim 1, characterized in that: the cam (3-1) is provided with gear mounting holes (3-11), the gear mounting holes (3-11) are provided with gear positioning grooves (3-12), the cam (3-1) is provided with cam coil spring convex blocks (3-15), and the periphery of the cam (3-1) is provided with cam gradual change surfaces (3-16).
5. The self-locking structure of the high-strength multi-point contact type angle adjuster of the automobile seat according to claim 1, characterized in that: the middle part of the coil spring (3-3) is provided with a coil spring positioning groove (3-31), and the end part of the coil spring (3-3) is an elastic pre-tightening end (3-32); the coil spring (3-3) is the cam pre-tightening coil spring.
6. The self-locking structure of the high-strength multi-point contact type angle adjuster of the automobile seat according to claim 1, characterized in that: the outer periphery of the tooth block (3-2) is provided with an outer tooth part (3-21), and the inner periphery of the tooth block (3-2) is provided with a tooth block gradual change surface (3-22).
7. The self-locking structure of the high-strength multi-point contact type angle adjuster of the automobile seat as claimed in claim 6, wherein: and an inner gear ring meshed with the outer gear part (3-21) on the periphery of the gear block (3-2) is arranged on the inner periphery of the movable disc (2).
8. The self-locking structure of the high-strength multi-point contact type angle adjuster of the automobile seat as claimed in claim 5, wherein: the coil spring positioning grooves (3-31) and the coil spring positioning blocks (1-6) are semicircular.
9. The self-locking structure of the high-strength multi-point contact type angle adjuster of the automobile seat as claimed in claim 4, wherein: the cam gradual change surface (3-16) comprises a first cam gradual change surface (3-161) and a second cam gradual change surface (3-162).
10. The self-locking structure of the high-strength multi-point contact type angle adjuster of the automobile seat as claimed in claim 6, wherein: the tooth block gradual change surfaces (3-22) comprise a first tooth block gradual change surface (3-221) and a second tooth block gradual change surface (3-222).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911416114.3A CN110949202B (en) | 2019-12-31 | 2019-12-31 | High-strength multipoint contact type self-locking structure of angle adjuster of automobile seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911416114.3A CN110949202B (en) | 2019-12-31 | 2019-12-31 | High-strength multipoint contact type self-locking structure of angle adjuster of automobile seat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110949202A true CN110949202A (en) | 2020-04-03 |
| CN110949202B CN110949202B (en) | 2024-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911416114.3A Active CN110949202B (en) | 2019-12-31 | 2019-12-31 | High-strength multipoint contact type self-locking structure of angle adjuster of automobile seat |
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| Country | Link |
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| CN (1) | CN110949202B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111660890A (en) * | 2020-06-10 | 2020-09-15 | 无锡全盛安仁机械有限公司 | Discontinuous angle adjuster and seat |
| CN113147533A (en) * | 2021-04-15 | 2021-07-23 | 佛吉亚(无锡)座椅部件有限公司 | Manual angle adjuster and adjusting method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111660890A (en) * | 2020-06-10 | 2020-09-15 | 无锡全盛安仁机械有限公司 | Discontinuous angle adjuster and seat |
| CN111660890B (en) * | 2020-06-10 | 2022-08-23 | 无锡全盛安仁机械有限公司 | Discontinuous angle adjuster and seat |
| CN113147533A (en) * | 2021-04-15 | 2021-07-23 | 佛吉亚(无锡)座椅部件有限公司 | Manual angle adjuster and adjusting method |
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| Publication number | Publication date |
|---|---|
| CN110949202B (en) | 2024-04-16 |
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