CN212313342U - Discontinuous angle regulator device capable of reducing gap - Google Patents
Discontinuous angle regulator device capable of reducing gap Download PDFInfo
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- CN212313342U CN212313342U CN202021055465.4U CN202021055465U CN212313342U CN 212313342 U CN212313342 U CN 212313342U CN 202021055465 U CN202021055465 U CN 202021055465U CN 212313342 U CN212313342 U CN 212313342U
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Abstract
The utility model discloses a can reduce discontinuous formula angle modulation ware device in clearance belongs to seat technical field, still can the low-angle rock scheduling problem design after solving current backrest locking. The utility model discloses can reduce discontinuous formula angle modulation ware device in clearance includes the fixed disk, the activity dish of lock on the fixed disk, the auto-lock subassembly of setting between fixed disk and activity dish, and the cladding of parcel at fixed disk and activity dish junction, the auto-lock subassembly includes the cam, three tooth piece, damping piece and reversing face guard, the top of tooth piece is provided with the tooth piece external tooth, be provided with the dish internal tooth on the activity dish, tooth piece external tooth meshes with the dish internal tooth during locking mutually, the profile of tooth index angle of tooth piece external tooth is 2.125, the profile of tooth index angle of dish internal tooth is 2. The utility model discloses can reduce the meshing clearance between the profile of tooth of can eliminating basically after the locking of discontinuous angle modulation ware device in clearance, reduce the clearance of rocking around the angle modulation ware assembly, use and experience better.
Description
Technical Field
The utility model relates to a seat technical field especially relates to a discontinuous formula angle modulation ware device that can reduce clearance.
Background
In a seat of a motor vehicle such as an automobile, an adjustment mechanism is generally provided for adjusting a reclining angle of a seat back. The adjusting mechanism mainly comprises two types, one type is a discontinuous seat backrest angle adjuster which can adjust the inclination angle of the seat backrest according to a fixed pitch (namely an angle); the other type is a continuous seat backrest angle adjuster which can randomly adjust the inclination angle of the seat backrest.
The discontinuous seat backrest angle adjuster generally realizes the locking of an adjusting angle by utilizing the principle that a tooth block is meshed with inner ring teeth of a movable disc, and the movable disc cannot be completely fixed after the tooth block is meshed with the movable disc due to the unreasonable tooth profile parameter design, namely, a small torsion angle still exists on the movable disc after the movable disc is locked, so that the seat backrest can still swing back and forth within a small angle range after the seat backrest is locked, and the user experience is poor.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a discontinuous angle modulation ware device that can reduce clearance eliminates the meshing clearance between the profile of tooth basically, reduces the clearance of rocking around the angle modulation ware assembly.
To achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides a can reduce discontinuous formula angle modulation ware device of clearance, is in including fixed disk, lock activity dish on the fixed disk, setting are in the fixed disk with auto-lock subassembly between the activity dish and parcel are in the fixed disk with the cladding of activity dish junction, the auto-lock subassembly includes cam, three tooth piece, damping piece and moves back the face guard, the top of tooth piece is provided with the tooth piece external tooth be provided with the dish internal tooth on the activity dish, during the locking tooth piece external tooth with the meshing of dish internal tooth mutually, the profile of tooth index angle of tooth piece external tooth is 2.125, the profile of tooth index angle of dish internal tooth is 2.
In particular, the damping element is three coil springs which are arranged at intervals with the tooth block.
In particular, the top of each tooth block is provided with twenty outer teeth of the tooth block, and each movable disk is provided with one hundred and eighty inner teeth of the disk.
Particularly, three groups of curve combined structures are arranged on the outer periphery of the cam in a centrosymmetric mode, each group of curve combined structures comprises a tooth block high contact section, a tooth block ejection section, a tooth block low contact section and a stop protruding portion which are sequentially connected, the distance between the tooth block low contact section and the center of the cam is smaller than the distance between the tooth block high contact section and the center of the cam is smaller than the distance between the tooth block ejection section and the center of the cam is smaller than the distance between the stop protruding portion and the center of the cam, and the stop protruding portions are matched with the damping piece.
Particularly, a yielding groove is formed between every two adjacent curve combined structures, and the distance between the yielding groove and the cam center is less than the distance between any position on the curve combined structure and the cam center.
Particularly, the bottom end of the tooth block is sequentially provided with a left protruding portion, a tooth block inner concave portion and a right protruding portion, and when the tooth block is locked, the left protruding portion abuts against the tooth block low contact section and the right protruding portion abuts against the tooth block high contact section.
Particularly, the left side surface of the top end of the tooth block protrudes outwards to form a left boss, the right side surface of the top end of the tooth block protrudes outwards to form a right boss, and the height Hz of the left boss is not equal to the height Hy of the right boss.
Particularly, the return surface cover is provided with a cam fixing clamping hole and a gear block sliding strip hole, and the radius of the gear block sliding strip hole is gradually reduced from one end to the other end.
Particularly, three positioning columns are arranged on the cam in a central symmetry mode, and the positioning columns are matched with the cam fixing clamping holes.
The utility model discloses the profile of tooth indexing angle of the discontinuous angle modulation ware device tooth piece external tooth that can reduce the clearance is 2.125 degrees, and the profile of tooth indexing angle of dish internal tooth is 2 degrees, can eliminate the meshing clearance between the profile of tooth basically after the locking, reduces the rocking gap around the angle modulation ware assembly, and the passenger leans on when the seat back basically can not feel the back and forth rock, uses and experiences better; the discontinuous angle adjuster device has strong applicability, and can be conveniently and quickly installed on seats of various motor vehicles or other seats needing to adjust the inclination angle of the backrest.
Drawings
Fig. 1 is a front view of a discontinuous recliner device according to an embodiment of the present invention;
fig. 2 is a top view of a discontinuous recliner mechanism according to an embodiment of the present invention;
fig. 3 is an exploded view of a discontinuous recliner mechanism according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a self-locking assembly according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a cam according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a tooth block according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a movable plate according to an embodiment of the present invention;
fig. 8 is a partial enlarged view at a in fig. 7.
In the figure:
1. fixing the disc; 2. a movable tray; 4. cladding; 5. an unlocking handle; 21. inner teeth of the disc; 31. a cam; 32. a tooth block; 33. a damping member; 34. a reversing face mask; 311. a tooth block high contact section; 312. a tooth block ejection section; 313. a tooth block low contact section; 314. a stopper boss; 315. a yielding groove; 316. a positioning column; 317. a handle mounting hole; 321. the outer teeth of the tooth blocks; 322. a left projection; 323. a tooth block concave part; 324. a right protrusion; 325. a left boss; 326. a right boss; 327. reversing the convex column; 341. the cam is fixed in the clamping hole; 342. the tooth block slides the rectangular hole.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
The present embodiment discloses a discontinuous recliner device capable of reducing a clearance, which is mounted on a base or a backrest of a seat for adjusting an inclination angle of the backrest of the seat. As shown in fig. 1 to 8, the discontinuous recliner device includes a fixed disc 1, a movable disc 2 fastened to the fixed disc 1, a self-locking assembly disposed between the fixed disc 1 and the movable disc 2, and an enclosure 4 enclosing a joint between the fixed disc 1 and the movable disc 2.
The self-locking assembly comprises a cam 31, three toothed blocks 32, a damping piece 33 and a reversing face guard 34, wherein the toothed blocks 32 and the damping piece 33 are respectively arranged on the periphery of the cam 31, and the reversing face guard 34 is buckled on the side faces of the cam 31 and the toothed blocks 32. The top of the tooth block 32 is provided with tooth block outer teeth 321, the movable disk 2 is provided with disk inner teeth 21, and the tooth block outer teeth 321 are engaged with the disk inner teeth 21 when locking.
The tooth form indexing angle of the tooth block external teeth 321 is 2.125 degrees, the tooth form indexing angle of the disc internal teeth 21 is 2 degrees, and after the tooth block external teeth 321 are meshed with the disc internal teeth 21, meshing gaps among tooth forms can be basically eliminated, and the shaking gaps of the front and the back of the angle adjuster assembly are reduced. The front and back clearance standard of the angle adjuster in the national automobile industry standard is not more than 3.5mm, the front and back clearance of the discontinuous angle adjuster device in the embodiment can be reduced to be within 1.5mm, passengers basically cannot feel the front and back shaking of the backrest when leaning on the backrest of the seat, and the use experience is better. The discontinuous angle adjuster device has strong applicability, and can be conveniently and quickly installed on seats of various motor vehicles or other seats needing to adjust the inclination angle of the backrest.
The damping member 33 prevents the cam 31 from rotating rapidly and at a large angle, and provides for accurate positioning of the tooth block 32, thereby ensuring that the tooth block external teeth 321 mesh with the disk internal teeth 21 smoothly. The specific structure of the damping member 33 is not limited, and the damping member may serve to limit the position and the speed of the cam 31. Preferably, as shown in fig. 4, the damping member 33 is three small coil springs disposed one by one with the three tooth blocks 32. One end of the coil spring is positioned in the disk-shaped rolled main body and is used for being arranged on the fixing structure of the fixed disk 1, so that the whole main body cannot move or rotate; the other end of the spring is lapped on the convex structure of the cam 31, when the cam 31 rotates, the other end of the spring is pushed to move, so that the spring is elastically deformed, the reaction force of the elastic deformation is applied to the cam 31, and the cam 31 is decelerated and limited.
As shown in fig. 5, three sets of curved composite structures are arranged on the outer periphery of the cam 31 in a central symmetry manner, each set of curved composite structures comprises a tooth block high contact section 311, a tooth block ejection section 312, a tooth block low contact section 313 and a stop convex part 314 which are connected in sequence, and the stop convex part 314 is matched with the damping part 33; three positioning columns 316 are arranged on the side surface of the cam 31 in a central symmetry manner and used for fixing the reversing face guard 34; the center of the cam 31 is provided with a handle mounting hole 317 for penetrating the unlocking handle 5, the cross section of the unlocking handle 5 and the handle mounting hole 317 are both non-circular, the unlocking handle 5 can drive the cam 31 to rotate together when rotating, and the cam 31 can push the tooth block 32 to move along the radial direction of the cam 31 in the rotating process until the outer teeth 321 of the tooth block are meshed with the inner teeth 21 of the disc.
The distance between the tooth block low contact section 313 and the center of the cam 31 < the distance between the tooth block high contact section 311 and the center of the cam 31 < the distance between the tooth block ejecting section 312 and the center of the cam 31 < the distance between the stop protrusion 314 and the center of the cam 31. Accordingly, as shown in fig. 6, the bottom end of the tooth block 32 is provided with a left protrusion 322, a tooth block inner recess 323 and a right protrusion 324 in sequence, the left protrusion 322 abuts on the tooth block low contact section 313 and the right protrusion 324 abuts on the tooth block high contact section 311 during locking, so that the whole discontinuous recliner device is more stable when the tooth block outer teeth 321 are engaged with the disc inner teeth 21, and can withstand a sufficiently large external force, such as a pressure applied to a backrest when a passenger leans against the backrest in a high-speed vehicle.
In addition to the above structure, preferably, the top of each tooth block 32 is provided with twenty tooth block external teeth 321, each movable disk 2 is provided with one hundred eighty disk internal teeth 21, and the tooth blocks 32 and the movable disks 2 can enter the teeth more smoothly and easily when contacting each other, so that the tooth block external teeth 321 and the disk internal teeth 21 are prevented from being abutted by misalignment when the tooth blocks 32 move in the radial direction of the cam 31, and the tooth block external teeth 321 and the disk internal teeth 21 cannot be aligned accurately.
On the basis of the structure, an abdicating groove 315 is arranged between two adjacent groups of curve combined structures, the distance between the abdicating groove 315 and the center of the cam 31 is less than the distance between any position on the curve combined structures and the center of the cam 31, and a space is reserved for the tooth block 32 to be separated from the movable disc 2.
The left side on tooth piece 32 top forms left side boss 325 to the evagination, and the right side forms right side boss 326 to the evagination, and the height Hz of left side boss 325 is not equal with the height Hy of right side boss 326, and operating personnel can easily go out the positive and negative (i.e. prevent slow-witted) of tooth piece 32 respectively during the installation, avoids making a mistake the positive and negative because tooth piece 32 full symmetric structure, improves the installation effectiveness.
On the basis of the above structure, the reversing face guard 34 is provided with a cam fixing clip hole 341 and a tooth block sliding strip hole 342, and the radius of the tooth block sliding strip hole 342 gradually decreases from one end to the other end. After installation, the positioning post 316 is clamped in the cam fixing clamping hole 341; the reversing projection 327 of the tooth block 32 is captured in the tooth block sliding slot 342. When the cam 31 rotates, the reversing face guard 34 can synchronously rotate, and the tooth block 32 moves outwards along the radial direction of the cam 31 under the pushing of the tooth block high contact section 311, the tooth block ejecting section 312 and the tooth block low contact section 313 until the tooth block outer teeth 321 are meshed with the disc inner teeth 21; when the backrest inclination angle needs to be adjusted, the rotation cam 31 enables the abdicating groove 315 to be aligned with the tooth block 32, the tooth block 32 cannot be separated from the movable disc 2 without external force, and the inclined tooth block sliding strip hole 342 is used for applying external force to the tooth block 32 through the reversing convex column 327 in the process of rotating along with the cam 31 to enable the tooth block 32 to be separated from the movable disc 2. In order to ensure that the tooth blocks 32 can always move along the radial direction of the cam 31, limit structures are preferably arranged on the inner surface of the fixed disc 1, and the tooth blocks 32 are clamped among the limit structures.
The tooth profile of the tooth block 32 of the discontinuous angle adjuster device adopts a design of twenty tooth profiles with a 2.125-degree division angle and a design of one hundred and eighty tooth profiles with a 2-degree division angle for the tooth profile of the movable disc 2, so that the meshing gap between the tooth profile of the tooth block 32 and the tooth profile of the movable disc 2 is basically eliminated, the front and back gaps of the angle adjuster device are reduced, and the static load strength of the angle adjuster device is improved.
It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.
Claims (9)
1. The utility model provides a can reduce discontinuous formula angle modulation ware device of clearance, its characterized in that, is in including fixed disk (1), lock activity dish (2) on fixed disk (1), set up and be in fixed disk (1) with auto-lock subassembly between activity dish (2) and parcel fixed disk (1) with encrusting (4) of activity dish (2) junction, the auto-lock subassembly includes cam (31), three tooth piece (32), damping piece (33) and moves face guard (34) back, the top of tooth piece (32) is provided with tooth piece external tooth (321) be provided with set internal tooth (21) on activity dish (2), during the locking tooth piece external tooth (321) with set internal tooth (21) mesh mutually, the profile of tooth index angle of tooth piece external tooth (321) is 2.125, the profile of tooth index angle of set internal tooth (21) is 2.
2. A non-continuous recliner arrangement for reducing backlash as claimed in claim 1, characterized in that said damping member (33) is three coil springs, said coil springs being spaced from said toothed block (32).
3. Discontinuous recliner arrangement according to claim 1, characterized in that twenty outer teeth (321) of said blocks are provided on top of each block (32) and one hundred eighty inner teeth (21) of said disc are provided on each movable disc (2).
4. A discontinuous recliner device according to any one of claims 1 to 3, characterized in that three sets of curvilinear composite structures are arranged on the outer periphery of said cam (31) in a centrosymmetric manner, each set of curvilinear composite structures comprising a tooth mass high contact section (311), a tooth mass ejecting section (312), a tooth mass low contact section (313) and a stop lug (314) connected in sequence, the distance between the tooth mass low contact section (313) and the center of said cam (31) being < the distance between the tooth mass high contact section (311) and the center of said cam (31) being < the distance between the tooth mass ejecting section (312) and the center of said cam (31) being < the distance between the stop lug (314) and the center of said cam (31), said stop lug (314) cooperating with said damping member (33).
5. A discontinuous recliner arrangement according to claim 4, characterized in that between two adjacent sets of said curved composite structures there is provided an abdicating groove (315), the distance between said abdicating groove (315) and the centre of said cam (31) being < the distance between any point on said curved composite structures and the centre of said cam (31).
6. A discontinuous recliner arrangement according to claim 4, characterized in that said bottom end of said tooth block (32) is provided with a left protrusion (322), a tooth block inner recess (323) and a right protrusion (324) in sequence, said left protrusion (322) abutting on said tooth block low contact section (313) and said right protrusion (324) abutting on said tooth block high contact section (311) when locked.
7. The discontinuous recliner device with reduced backlash of claim 6, wherein said teeth (32) have a top end with a left side protruding outwardly forming a left boss (325) and a right side protruding outwardly forming a right boss (326), said left boss (325) having a height Hz that is not equal to a height Hy of said right boss (326).
8. The discontinuous recliner device capable of reducing a clearance according to any one of claims 1 to 3, wherein the reverse face guard (34) is provided with a cam fixing catching hole (341) and a tooth block sliding elongated hole (342), and the tooth block sliding elongated hole (342) is gradually reduced in radius from one end to the other end.
9. The discontinuous recliner device for reducing backlash of claim 8, wherein said cam (31) is centrally and symmetrically provided with three positioning posts (316), said positioning posts (316) being engaged with said cam fixing holes (341).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021055465.4U CN212313342U (en) | 2020-06-10 | 2020-06-10 | Discontinuous angle regulator device capable of reducing gap |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021055465.4U CN212313342U (en) | 2020-06-10 | 2020-06-10 | Discontinuous angle regulator device capable of reducing gap |
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| CN212313342U true CN212313342U (en) | 2021-01-08 |
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| CN202021055465.4U Active CN212313342U (en) | 2020-06-10 | 2020-06-10 | Discontinuous angle regulator device capable of reducing gap |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111546960A (en) * | 2020-06-10 | 2020-08-18 | 无锡全盛安仁机械有限公司 | Discontinuous angle regulator device capable of reducing gap |
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2020
- 2020-06-10 CN CN202021055465.4U patent/CN212313342U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111546960A (en) * | 2020-06-10 | 2020-08-18 | 无锡全盛安仁机械有限公司 | Discontinuous angle regulator device capable of reducing gap |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Discontinuous angle adjuster device capable of reducing gap Effective date of registration: 20220112 Granted publication date: 20210108 Pledgee: Wuxi Xishan sub branch of Bank of Jiangsu Co.,Ltd. Pledgor: WUXI QUANSHENG ANREN MACHINERY Co.,Ltd. Registration number: Y2022320010013 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.1999 Dongsheng Road, Xishan Economic and Technological Development Zone, Wuxi City, Jiangsu Province Patentee after: Jiangsu Quansheng Cabin Technology Co.,Ltd. Address before: No.1999 Dongsheng Road, Xishan Economic and Technological Development Zone, Wuxi City, Jiangsu Province Patentee before: WUXI QUANSHENG ANREN MACHINERY Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |