CN206254829U - Seat angle adjustor and the seat with the seat angle adjustor - Google Patents
Seat angle adjustor and the seat with the seat angle adjustor Download PDFInfo
- Publication number
- CN206254829U CN206254829U CN201621419481.0U CN201621419481U CN206254829U CN 206254829 U CN206254829 U CN 206254829U CN 201621419481 U CN201621419481 U CN 201621419481U CN 206254829 U CN206254829 U CN 206254829U
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- CN
- China
- Prior art keywords
- cam
- angle adjustor
- seat angle
- seat
- ratchet
- 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.)
- Withdrawn - After Issue
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- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
- Seats For Vehicles (AREA)
Abstract
The utility model discloses a kind of seat angle adjustor and the seat with the seat angle adjustor, the seat angle adjustor includes ratchet, unblock cam and locking cam；The unblock cam and the locking cam are set in together by the boss and through hole that cooperate；Also include more than one adjustment ring, the adjustment ring is unlocked between cam and the ratchet located at described, to prevent the unblock cam from departing from the locking cam.The structure design of the seat angle adjustor can reduce the required precision of each part, correspondingly, reduce processing cost, while also can ensure that the reliability of work.
Description
Technical field
The utility model is related to chair angle regulation technology field, and in particular to a kind of seat angle adjustor and with the seat
The seat of recliner.
Background technology
Fig. 1 is refer to, Fig. 1 is a kind of structural representation of exemplary seat.
As illustrated, common seat includes the chair back 10 and seat support 20；Seat is in use, different in order to adapt to
Demand, can carry out appropriate adjustment to the angle of the chair back 10 and seat support 20, especially for automotive seat, generally be adjusted by seat
Angle device 30 realizes this function.
It is a kind of exploded perspective view of common seat angle adjustor please also refer to Fig. 2 a and Fig. 2 b, Fig. 2 a, Fig. 2 b are one kind
The generalized section of common seat angle adjustor.
Seat angle adjustor 30 includes ratchet 32, unblock cam 33, sliding block 34, locking cam 35, central shaft 36, back-moving spring
37 and coulisse 38.
Generally, the ratchet 32 of seat angle adjustor 30 is fixed as one with the chair back 10, and coulisse 38 is fixed as one with seat support 20
Body.Ratchet 32 can be rotated relative to coulisse 38, so that the angle of adjusting back 10 and seat support 20.
Wherein, unblock cam 33, locking cam 35 and back-moving spring 37 are respectively provided with the centre bore run through for central shaft 36, and
Can be rotated under the drive of central shaft 36, locking cam 35 is generally aligned in the same plane with sliding block 34, locking cam 35 is located at chute
In the central slot of plate 38, sliding block 34 is located in the chute of the outer end of coulisse 38, and sliding block 34 only can be in the chute along footpath
To slip.
During locking, locking cam 35 is contradicted from locking face and sliding block 34 from locking face, the sliding block ratchet of the outer end of sliding block 34 with
The ratchet ratchet engagement of ratchet 32, now ratchet 32 cannot be rotated relative to coulisse 38 so that, the chair back 10 and seat support of seat
20 relative position is fixed；Lockup state is kept by back-moving spring 37.
During unblock, when central shaft 36 applies the external torque opposite with back-moving spring 37, unblock cam 33 is rotated, and is driven
To the direction translational of central shaft 36 in chute, then sliding block ratchet is completely disengaged with ratchet ratchet for sliding block 34, and now, ratchet 32 can
Center relative to coulisse 38 rotates freely, so that, can as needed adjust the angle of the chair back 10 and seat support 20.
It is entirety in order to all parts of seat angle adjustor 30 are contained, is additionally provided with sheath 31.The sheath 31 it is interior
Circle coordinates with the cylindrical gap of ratchet 32, and, the sheath 31 is fixed with coulisse 38, so that ratchet 32 can be with respect to 31 turns of sheath
It is dynamic.
The parts of the seat angle adjustor 30 are more, finally combine it is integral after, being processed, be heat-treated etc. influences, each zero
The axial dimension of part is respectively provided with certain fluctuation.Three holes for unlocking cam should be enclosed within the boss of locking cam, if assembling
Afterwards, when axial space is larger, unblock cam and locking cam can be caused to depart from, cause both cannot synchronous axial system, influence seat
The normal of recliner is used, if after assembling, when axial space is smaller, then unblock cam can be made to be close to the inwall of ratchet, in solution
During lock or locking, cause to produce friction between unblock cam and ratchet inwall, same the normal of influence seat angle adjustor makes
With.So, to make the axial gap of each part after assembling in rational scope, to ensure the feature of seat angle adjustor, just
Each part must be made to be respectively provided with precision higher, which again increases difficulty of processing, cause processing cost to rise.
In view of this, the structure of existing seat angle adjustor how is improved, seat is ensured with while processing cost is reduced
The functional reliability of recliner, is the current technical issues that need to address of those skilled in the art.
Utility model content
The purpose of this utility model is to provide a kind of seat angle adjustor and the seat with the seat angle adjustor, and the seat is adjusted
The structure design of angle device can reduce the required precision of each part, correspondingly, reduce processing cost, while also can ensure that work
The reliability of work.
In order to solve the above technical problems, the utility model provides a kind of seat angle adjustor, including ratchet, unblock cam and lock
Only cam；The unblock cam and the locking cam are set in together by the boss and through hole that cooperate；Also include one
Individual above adjustment ring, the adjustment ring is unlocked between cam and the ratchet located at described, to prevent the unblock cam from departing from
The locking cam.
The seat angle adjustor that the utility model is provided, also includes more than one adjustment on the basis of existing technology
Ring, the adjustment ring is used to prevent unblock cam from departing from locking cam, in this way, by adjusting between unblock cam and ratchet
The domain compensates the mismachining tolerance of each parts of seat angle adjustor, it is ensured that unblock cam is with locking cam without departing from Neng Goutong
Step is rotated, and so, because the design of adjustment ring, the required precision of each part of recliner can be reduced, during assembling product, by each
The adjustment ring of the actual mated condition selection respective thickness of part adjusts axial gap, the recliner is normally used, and adjusts
The design of the domain allows that each component dimensional tolerances of recliner suitably amplify, and reduces difficulty of processing, correspondingly reduces and adds
Work cost.The structure design of the seat angle adjustor is able to ensure that functional reliability while processing cost is reduced.
Optionally, also including central shaft, its centre bore for running through the unblock cam and the locking cam；The adjustment
Ring set is loaded on the central shaft.
Optionally, the unblock cam is provided with some through holes circumferentially arranged, with institute on the locking cam
State that number of through-holes is consistent and the corresponding boss in position；The adjustment ring is located in the space that each boss is surrounded.
Optionally, also including sliding block, under lockup state, the locking face of the locking cam is supported with the locking face of the sliding block
Touch, so that the sliding block is engaged with the ratchet；Wherein, thickness of the thickness of the locking cam more than the sliding block.
Optionally, also including sheath and coulisse；The sheath includes first annular plate, the second annular slab and cylinder, institute
The one end for stating cylinder is affixed with the periphery wall of the first annular plate, and the other end is affixed with the internal perisporium of second annular slab；
The inwall of the first annular plate and the inwall of the cylinder lateral surface respectively with the ratchet, periphery wall are fitted, and described
The inwall of second ring plate is affixed with the coulisse.
Optionally, second annular slab passes through to be welded and fixed with the coulisse.
Optionally, second annular slab is fixed with the coulisse by way of laser welding.
The utility model also provides a kind of seat, including the seat support that is hinged and the chair back and is placed between seat support and the chair back
Seat angle adjustor, the seat angle adjustor is using the seat angle adjustor described in any of the above-described.
Because foregoing seat angle adjustor has aforementioned techniques effect, the seat with the seat angle adjustor also has identical
Technique effect, repeats no more.
Brief description of the drawings
Fig. 1 is a kind of structural representation of exemplary seat；
Fig. 2 a are a kind of exploded perspective view of common seat angle adjustor；
Fig. 2 b are a kind of generalized section of common seat angle adjustor；
Fig. 3 provides seat angle adjustor a kind of generalized section of specific embodiment by the utility model；
Fig. 4 is the structural representation of adjustment ring shown in Fig. 3；
Fig. 5 a are the theoretical cooperation schematic diagram of the sliding block with locking cam of existing recliner；
Fig. 5 b are the actual cooperation schematic diagram of the sliding block with locking cam of existing recliner；
Fig. 6 a are provided the sliding block of seat angle adjustor and the theoretical cooperation schematic diagram of locking cam by the utility model；
Fig. 6 b are provided the sliding block of seat angle adjustor and the actual cooperation schematic diagram of locking cam by the utility model；
Fig. 7 is the structural representation of sheath shown in Fig. 3.
In Fig. 1 to Fig. 2 b：
The chair back 10, seat support 20, seat angle adjustor 30；
Sheath 31, ratchet 32 unlocks cam 33, sliding block 34, locking cam 35, central shaft 36, back-moving spring 37, coulisse
38；
In Fig. 3 to Fig. 7：
Seat angle adjustor 30, sheath 31 ', ratchet 32 unlocks cam 33, and sliding block 34, locking cam 35, central shaft 36 is sliding
Frid 38；First annular plate 311 ', the second annular slab 312 ', cylinder 313 '；
Adjustment ring 60.
Specific embodiment
Core of the present utility model is to provide a kind of seat angle adjustor and the seat with the seat angle adjustor, and the seat is adjusted
The structure design of angle device can reduce the required precision of each part, correspondingly, reduce processing cost, while also can ensure that work
The reliability of work.
In order that those skilled in the art more fully understand the utility model scheme, below in conjunction with the accompanying drawings and specific implementation
The utility model is described in further detail for mode.
Fig. 3 and Fig. 4 is refer to, wherein, Fig. 3 provides a kind of cuing open for specific embodiment of seat angle adjustor by the utility model
Face schematic diagram；Fig. 4 is the structural representation of adjustment ring shown in Fig. 3.
In the embodiment, seat angle adjustor 30 includes ratchet 32, unblock cam 33 and locking cam 35；The unblock He of cam 33
Locking cam 35 is set in together by the boss 353 and through hole for cooperating；Also include more than one adjustment ring 60, adjustment ring
60 between unblock cam 33 and ratchet 32, to prevent unblock cam 33 from departing from locking cam 35.
In specific scheme, unblock cam 33 is provided with some through holes circumferentially arranged, the centre-to-centre spacing unblock of each through hole
The centre distance of cam 33 is equal, that is to say, that each through hole be located at same circumference on, correspondingly, on locking cam 35 set with
Number of through-holes is consistent and the one-to-one some boss 353 in position, and during assembling, each boss 353 of locking cam 35 is each passed through
Each through hole of cam 33 is unlocked, both are assembled.
As shown in figure 3, in order to ensure unblock cam 33 and locking cam 35 can be well matched with synchronous axial system, boss
353 generally have certain thickness, and so, being unlocked between cam 33 and ratchet 32 for fear of boss 353 can have certain axial direction
Gap, if the mismachining tolerance of ratchet 32, unblock cam 33 and locking cam 35 is larger, it is easy to cause unblock convex after mounting
Wheel 33 is moved axially between locking cam 35 and ratchet 32, and is departed from locking cam 35, and the normal of influence recliner is used,
And can solve the problem after adjustment ring 60 is set.
The seat angle adjustor 30 is additionally provided with more than one adjustment ring 60 on the basis of original structure, and the adjustment ring 60 sets
Between unblock cam 33 and ratchet 32, be used to prevent unblock cam 33 from departing from locking cam 35, in this way, by adjustment ring 60 come
Compensate the mismachining tolerance of each parts of seat angle adjustor 30, it is ensured that unblock cam 33 is with locking cam 35 without departing from Neng Goutong
Step is rotated, and so, because the design of adjustment ring 60, can reduce the required precision of each part of recliner, during assembling product, is passed through
The adjustment ring of the actual mated condition selection respective thickness of each part adjusts axial gap, the recliner is normally used,
The design of adjustment ring 60 allows that each component dimensional tolerances of recliner suitably amplify, and reduces difficulty of processing, correspondingly reduces
Processing cost.The structure design of the seat angle adjustor 30 is able to ensure that functional reliability while processing cost is reduced.
During concrete operations, the machining accuracy of each parts of seat angle adjustor 30 can be reduced suitably, when product is assembled,
Every product of detection is actual coordinate after unlock needed between cam 33 and ratchet 32 thickness for adjusting be it is how many, according to the thickness come
Processing adjustment ring 60, adjustment ring 60 is assembled in corresponding product, to ensure that unblock cam 33 will not take off with locking cam 35
From, can synchronous axial system, to ensure the normal work of seat angle adjustor 30.
The seat angle adjustor 30 also includes central shaft 36, and the central shaft 36 is in unblock cam 33 and locking cam 35
Heart hole, unlocked under the drive of central shaft 36 cam 33 and locking cam 35 can synchronous axial system, by locking cam 35 with adjust
The cooperation of the sliding block 34 of angle device, while moving radially with movable slider 34, so that engaging or de- by sliding block 34 and ratchet 32
From come lock seat the chair back and seat support or adjustment the chair back and seat support between angle.
In specific scheme, adjustment ring 60 is cyclic structure, is set on central shaft 36, be located at unblock cam 33 with
Between ratchet 32, realize simple.
In specific scheme, adjustment ring 60 is located in the space that each boss 353 of locking cam 35 is surrounded, that is to say, that
Adjustment ring 60 is embedded in each boss 353, and the radial direction that adjustment ring 60 can be limited to a certain extent is rocked, and is so set
Adjustment ring 60 need not design larger size, can also material-saving.
Generally, sliding block 34 is located in the groove that the coulisse 38 of recliner is formed with locking cam 35, specifically, coulisse
38 middle part is provided with the central slot for accommodating locking cam 35, and the periphery of central slot is circumferentially arranged with corresponding with the number of sliding block 34
Chute, to accommodate sliding block 34, sliding block 34 can only radially be slided in chute.
Sliding block 34 and locking cam 35 have the locking face for cooperating, in a latched condition, the locking face of sliding block 34 with
The locking face conflict of locking cam 35, the ratchet of the outer end of sliding block 34 and the ratchet engagement of ratchet 32, make ratchet 32 to rotate, with
The relative position of the locking chair back and seat support；During unblock, make unblock cam 33 and locking cam 35 synchronous by rotary middle spindle 36
Rotate, unblock cam 33 is radially-inwardly translated with movable slider 34, locking cam 35 is rotated as sliding block 34 reserves mobile space simultaneously,
Sliding block 34 is set to be disengaged from ratchet 32, ratchet 32 can be rotated relative to coulisse 38, with the angle between adjusting back and seat support.
In existing design, sliding block 34 is equal to the thickness of locking cam 35, as illustrated in fig. 5 a, under theory state, sliding block
34 is concordant respectively with the two sides of locking cam 35, the mating surface of both thickness directions is fitted completely, and in actual conditions, due to
Processing, rigging error of part etc., sliding block 34 can not fit completely in a thickness direction with locking cam 35, such as institute in Fig. 5 b
Show, in practical set and operation process, sliding block 34 axially (is being defined) with locking cam 35 on the basis of central shaft 36, also
It is the presence of deviation on thickness direction so that both mating surfaces cannot fit completely, i.e., both contacts area reduce, and work as seat
When recliner 30 is subject to relatively large load, locking cam 35 will bear very big pressure, when it subtracts with the contact area of sliding block 34
After small, it is easy to produce pressure feedback deformation, influence the normal work of seat angle adjustor 30.
Therefore, being improved with locking cam 35 sliding block 34 herein, make the thickness of locking cam 35 more than sliding block 34
Thickness, so, as shown in Figure 6 a, under theory state, sliding block 34 is located at the middle part of locking cam 35, mating surface and the lock of sliding block 34
Only cam 35 is fitted completely, even if because mismachining tolerance or rigging error or operating cause sliding block 34 to offset, because of locking cam 35
Thickness also ensures that the mating surface of sliding block 34 is fitted completely with locking cam 35, as shown in Figure 6 b, really more than the thickness of sliding block 34
Protecting sliding block 34 will not reduce with the contact area of locking cam 35, evade seat angle adjustor 30 when by relatively large load, lock
Feedback deformation is pressed caused by only cam 35 reduces because of contact area such that it is able to improve the functional reliability of seat angle adjustor 30.
Seat angle adjustor 30 is generally additionally provided with sheath, each parts of recliner is contained and is integrated.
Fig. 2 b are refer to, in existing design, sheath 31 has two of two inner ring surfaces of two relative inner ring surfaces and connection
Inner peripheral surface, step transition between two inner peripheral surfaces a, inner ring surface of sheath 31 is fitted with the lateral surface of ratchet 32, in another
Anchor ring is fitted with the lateral surface of coulisse 38, and the perisporium of two inner peripheral surfaces just with ratchet 32, coulisse 38 is fitted, wherein sheath
31 is affixed with coulisse 38.
As shown in Figure 2 b, A1 positions are the FX of sheath 31 and coulisse 38, when ratchet 32 is subject to lateral external force,
Side force transmits the force to sheath 31 by the A2 positions that sheath 31 is fitted with ratchet 32, and foregoing sheath 31 is consolidated with coulisse 38
Determine the fulcrum that region A1 positions are the stress of sheath 31, fulcrum force A1 is apart from each other with the stress point A2 of sheath 31, easily
Flexural deformation is produced, causes the intensity of sheath 31 not enough, the reliability of the influence work of seat angle adjustor 30.
Therefore, the structure to sheath have also been made improvement herein, in order to be distinguished with existing structure, hereafter marked with label 31 '
Note sheath, specifically refers to Fig. 3 and combines Fig. 7 understandings, wherein, Fig. 7 is the structural representation of sheath shown in Fig. 3.
In the embodiment, sheath 31 ' includes first annular plate 311 ', the second annular slab 312 ' and cylinder 313 ', wherein, cylinder
One end of body 313 ' is affixed with the periphery wall of first annular plate 311 ', and the other end is affixed with the internal perisporium of the second annular slab 312 ',
The cross section of sheath 31 ' is substantially in zigzag；The inwall of first annular plate 311 ' and the inwall of cylinder 313 ' respectively with ratchet 32
Lateral surface, periphery wall laminating, the inwall of the second annular slab 312 ' are affixed with coulisse 38, it is clear that the second annular slab 312 ' and cunning
Medial surface (towards the side of the ratchet 32) connection of frid 38.
After being set as above, the inwall of the second annular slab 312 ' of sheath 31 ' is affixed with the medial surface of coulisse 38, such as Fig. 3
Shown, sheath 31 ' is B positions with the FX of coulisse 38, and when ratchet 32 is subject to lateral external force, side force passes through sheath
31 ' first annular plate 311 ' transmits the force to sheath 31 ', and foregoing sheath 31 ' is with the FX B positions of coulisse 38
The fulcrum of the stress of sheath 31 ', comparison diagram 3 and Fig. 2 b, after above-mentioned sheath 31 ', the stress point and fulcrum force of sheath 31 ' it
Between distance substantially shorten, therefore the moment of flexure that sheath 31 ' is subject to is smaller, under identical material can to ratchet 32 provide power higher with
Lateral force resisting.
After comparison diagram 3 and Fig. 2 b can also be seen that the sheath 31 ' using said structure, the volume of sheath 31 ' substantially compared with
It is small, it is necessary to material it is few, both save material cost, additionally aid reduce the entirety of seat angle adjustor 30 weight.
In specific scheme, the second annular slab 312 ' and the coulisse 38 of sheath 31 ' are fixed by way of welding, simply
It is reliable；More specifically, both can be by the way of laser welding.
The utility model also provides a kind of seat, including the chair back, seat support and seat angle adjustor, and the seat angle adjustor is upper
Seat angle adjustor described in text.
Because above-mentioned seat angle adjustor has above-mentioned technique effect, so the seat including the seat angle adjustor also has phase
Same technique effect, will not be repeated here.
The seat to seat angle adjustor provided by the utility model and with the seat angle adjustor has been carried out in detail above
It is thin to introduce.Specific case used herein is set forth to principle of the present utility model and implementation method, above example
Explanation be only intended to help and understand method of the present utility model and its core concept.It should be pointed out that for the art
For those of ordinary skill, on the premise of the utility model principle is not departed from, some changing can also be carried out to the utility model
Enter and modify, these are improved and modification is also fallen into the utility model scope of the claims.
Claims (8)
1. seat angle adjustor, including ratchet, unblock cam and locking cam；The unblock cam and the locking cam pass through phase
The boss and through hole for mutually coordinating are set in together；Characterized in that, also including more than one adjustment ring, the adjustment ring is located at institute
State between unblock cam and the ratchet, to prevent the unblock cam from departing from the locking cam.
2. seat angle adjustor according to claim 1, it is characterised in that also including central shaft, it is convex that it runs through the unblock
The centre bore of wheel and the locking cam；The adjustment ring is set in the central shaft.
3. seat angle adjustor according to claim 1, it is characterised in that the unblock cam is provided with some circumferentially to be arranged
The through hole of cloth, the corresponding boss in and position consistent with the number of through-holes on the locking cam；The adjustment ring
In the space that each boss is surrounded.
4. the seat angle adjustor according to claim any one of 1-3, it is characterised in that also including sliding block, under lockup state,
The locking face of the locking cam contradicts with the locking face of the sliding block, so that the sliding block is engaged with the ratchet；Wherein, institute
State the thickness of the thickness more than the sliding block of locking cam.
5. the seat angle adjustor according to claim any one of 1-3, it is characterised in that also including sheath and coulisse；Institute
Sheath is stated including first annular plate, the second annular slab and cylinder, the periphery wall of one end of the cylinder and the first annular plate
Affixed, the other end is affixed with the internal perisporium of second annular slab；The inwall of the first annular plate and the inwall of the cylinder
Lateral surface respectively with the ratchet, periphery wall are fitted, and the inwall of second annular slab is affixed with the coulisse.
6. seat angle adjustor according to claim 5, it is characterised in that second annular slab passes through with the coulisse
It is welded and fixed.
7. seat angle adjustor according to claim 6, it is characterised in that second annular slab passes through with the coulisse
The mode of laser welding is fixed.
8. seat, including the seat support that is hinged and the chair back and the seat angle adjustor that is placed between the seat support and the chair back, its
It is characterised by, the seat angle adjustor is using the seat angle adjustor as any one of claim 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621419481.0U CN206254829U (en) | 2016-12-22 | 2016-12-22 | Seat angle adjustor and the seat with the seat angle adjustor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621419481.0U CN206254829U (en) | 2016-12-22 | 2016-12-22 | Seat angle adjustor and the seat with the seat angle adjustor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206254829U true CN206254829U (en) | 2017-06-16 |
Family
ID=59030084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621419481.0U Withdrawn - After Issue CN206254829U (en) | 2016-12-22 | 2016-12-22 | Seat angle adjustor and the seat with the seat angle adjustor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206254829U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106494272A (en) * | 2016-12-22 | 2017-03-15 | 湖北中航精机科技有限公司 | Seat angle adjustor and the seat with the seat angle adjustor |
-
2016
- 2016-12-22 CN CN201621419481.0U patent/CN206254829U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106494272A (en) * | 2016-12-22 | 2017-03-15 | 湖北中航精机科技有限公司 | Seat angle adjustor and the seat with the seat angle adjustor |
| CN106494272B (en) * | 2016-12-22 | 2019-03-26 | 湖北中航精机科技有限公司 | Seat angle adjustor and seat with the seat angle adjustor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170616 Effective date of abandoning: 20190326 |