CN204136826U - Headrest locking device - Google Patents
Headrest locking device Download PDFInfo
- Publication number
- CN204136826U CN204136826U CN201420490052.7U CN201420490052U CN204136826U CN 204136826 U CN204136826 U CN 204136826U CN 201420490052 U CN201420490052 U CN 201420490052U CN 204136826 U CN204136826 U CN 204136826U
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- China
- Prior art keywords
- headrest
- guide sleeve
- head rest
- rest pole
- turning block
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 230000007246 mechanism Effects 0.000 claims abstract description 55
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 230000001141 propulsive effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
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- Chair Legs, Seat Parts, And Backrests (AREA)
Abstract
The utility model relates to a kind of headrest Locking Device, comprise the headrest guide sleeve be slidably sheathed on head rest pole, head rest pole is provided with multiple tracks lock groove along its axis at intervals, also comprise be connected in headrest guide sleeve, embed in lock groove under natural resiliency, snap lock locking mechanism on described headrest guide sleeve is locked in make head rest pole, and be movably set on described head rest pole, its by external force drive and rotate around head rest pole time, pushing tow is carried out to described snap lock locking mechanism, to make snap lock locking mechanism by the rotation release mechanism deviate from lock groove.The releasing force that this headrest Locking Device needs in use is less, easy and simple to handle, and lock of not easily misunderstanding, there is good practicality.
Description
Technical field
The utility model relates to a kind of Locking Device, particularly relates to a kind of headrest Locking Device.
Background technology
Current automotive headrest is divided into integral type and adjustable, adjustable headrest to be divided into again highly regulating and angular adjustment two kinds of forms.Headrest with adjustable height can change according to the height of passenger's body type to headrest, to realize the support to head of passenger, and realizes the protection to passenger's head and neck when having an accident.Present Attitude adjustable headrest is commonly pressing type lock locking apparatus, and this Locking Device easily causes seat foam turn up and affect seat aesthetic property, and releasing force needed for pressing type lock locking apparatus is also comparatively large, operates and inconvenient.On the other hand, pressing type lock locking apparatus is also easy in actual use causes unblock because being not intended to extruding, thus also can bring unnecessary trouble to user.
Utility model content
For solving the deficiencies in the prior art, the utility model provides a kind of headrest Locking Device, and its releasing force needed in use is less, easy and simple to handle, and lock of not easily misunderstanding, there is good practicality.
For achieving the above object, headrest Locking Device of the present utility model, comprise the headrest guide sleeve be slidably sheathed on head rest pole, head rest pole is provided with multiple tracks lock groove along its axis at intervals, also comprise and be connected in headrest guide sleeve, embed under natural resiliency in lock groove, snap lock locking mechanism on described headrest guide sleeve is locked in make head rest pole, and be movably set on described head rest pole, when it rotates around head rest pole by external force drives, pushing tow is carried out to described snap lock locking mechanism, to make snap lock locking mechanism by the rotation release mechanism deviate from lock groove.
Adopt above-mentioned technical scheme, the locking to headrest can be realized when embedding under himself elasticity when snap lock locking mechanism in a lock groove on head rest pole, and when needs adjustment height of headrest, then can drive and rotate release mechanism and make snap lock locking mechanism by deviating from lock groove, such head rest pole just can move up and down in headrest guide sleeve, when moving to proper height, remove the propulsive effort to rotating release mechanism again, snap lock locking mechanism just can embed in lock groove again and again lock headrest under himself elasticity.Due to unlocking manner is become rotation formula, as long as order about rotation release mechanism to rotate when unlocking, thus it is little compared to the releasing force needed for existing push type unblock, operate also easy, and the rotation realizing certain limit owing to will make to rotate release mechanism can unlock snap lock locking mechanism, thus it also can prevent the generation misreading lock situation, is provided with good practicality.
As the restriction to aforesaid way, the outside in head rest pole on described headrest guide sleeve is provided with mounting groove, and described snap lock locking mechanism is placed in mounting groove, and described rotation release mechanism movable set is in mounting groove.Mounting groove is set, snap lock locking mechanism and rotation release mechanism is all in mounting groove Locking Device integral structure can be made to stablize, be also convenient to the layout on automotive seat.
As the restriction to aforesaid way, described snap lock locking mechanism comprises the resilient locking element be connected in mounting groove, one end of described resilient locking element is connected on headrest guide sleeve, and the other end of resilient locking element embeds in lock groove under resilient locking element natural resiliency.
As the restriction to aforesaid way, described rotation release mechanism comprises and being movably set on head rest pole and the turning block of movable set in described mounting groove, and be arranged on described turning block, when turning block rotates around head rest pole, described resilient locking element one end embedded in lock groove is carried out to the block of pushing tow, described turning block is provided with by the rotating drive mechanism stretching out, order about with bear external force turning block in headrest guide sleeve and rotate around head rest pole.
As the restriction to aforesaid way, described rotating drive mechanism comprises the rotation projection axially arranged along it be fixed on turning block, described headrest guide sleeve is provided with and makes described rotation projection by stretching out in headrest guide sleeve, to order about the rotation slot that turning block carries out around head rest pole rotating via described rotation projection.Make rotating drive mechanism be rotate the integral structure size that projection can reduce lockable mechanism, rotation slot is set while realization drives turning block via rotation projection, the rotation of turning block also can be made more steady.
As the restriction to aforesaid way, described sliding tray be located on headrest guide sleeve, spacing deep-slotted chip breaker can be carried out to described rotation projection around the amount of spin of head rest pole.Sliding tray is set to carry out spacing deep-slotted chip breaker to the amount of spin rotating projection, can prevents the rotation because of turning block from excessively causing Locking Device failure mechanisms, to ensure that Locking Device can effectively use.
As the restriction to aforesaid way, described rotating drive mechanism comprises the turn knob radially arranged being fixed on turning block sidepiece, described headrest guide sleeve is provided with and communicates with the mounting groove in it, to make described turn knob by the breach stretched out in headrest guide sleeve.Make rotating drive mechanism be set to turn knob and can reduce propulsive effort required when ordering about turning block rotation, thus be conducive to the operation of Locking Device.
As the restriction to aforesaid way, described turning block is provided with along its axial arranged orienting lug, described headrest guide sleeve is provided with and makes described orienting lug by stretching out in headrest guide sleeve and the guide groove led around the rotation of head rest pole to described orienting lug.Arranging orienting lug and guide groove can make the rotation of turning block more steady, also can carry out spacing to the amount of spin of turning block via guide groove, to ensure effective use of Locking Device.
As the restriction to aforesaid way, be provided with in described mounting groove be fixed on headrest guide sleeve, relative to the displacement of deviating from of lock groove, spacing limiting stopper is carried out to one end that described resilient locking element embeds in lock groove.Arrange limiting stopper can prevent because turning block rotates excessively and cause Locking Device failure mechanisms, to ensure effective use of Locking Device.
As the restriction to aforesaid way, the position that described turning block is right against resilient locking element is set to recessed recess, and described block is located in recess, and described resilient locking element is arranged in recess.Arranging recess can make the integral thickness of Locking Device reduce, and is beneficial to the layout on automotive seat, also contributes to the structural stability ensureing snap lock locking mechanism simultaneously.
In sum, adopt the technical solution of the utility model, the releasing force that this headrest Locking Device needs in use is less, and lock of not easily misunderstanding, there is good practicality.
Accompanying drawing explanation
Do further to describe in detail to the utility model below in conjunction with the drawings and the specific embodiments:
Fig. 1 is the structural representation of the utility model embodiment one;
Fig. 2 is the structural representation of the headrest guide sleeve in embodiment one;
Fig. 3 is the structural representation of the rotation release mechanism in embodiment one;
Fig. 4 is the structural representation of the utility model embodiment two;
Fig. 5 is the structural representation of the headrest guide sleeve in embodiment two;
Fig. 6 is the structural representation of the rotation release mechanism in embodiment two;
Fig. 7 is the structural representation of Locking Device when having orienting lug and guide groove;
In figure: 1, head rest pole; 2, turning block; 3, headrest guide sleeve; 4, recess; 5, turn knob; 6, projection is rotated; 7, block; 8, lock groove; 9, resilient locking element; 10, mounting groove; 11, head rest pole mounting hole; 12, rotation slot; 13, breach; 14, mount pad; 15, limiting stopper; 16, orienting lug; 17, guide groove.
Detailed description of the invention
Embodiment one
The present embodiment relates to a kind of headrest Locking Device, as shown in Figure 1 to Figure 3, it comprises the headrest guide sleeve 3 be slidably sheathed on head rest pole 1, head rest pole 1 is provided with multiple tracks lock groove 8 along its axis at intervals, also comprise and be connected in headrest guide sleeve 3, embed in one lock groove 8 under himself elasticity, snap lock locking mechanism on headrest guide sleeve 3 is locked in make head rest pole 1, and be movably set on head rest pole 1, when it rotates around head rest pole 1 by external force drives, pushing tow can be carried out to snap lock locking mechanism, to make snap lock locking mechanism by the rotation release mechanism deviate from lock groove 8.
The structure of headrest guide sleeve 3 as shown in Figure 2, head rest pole mounting hole 11 is provided with at the middle part of headrest guide sleeve 3, namely head rest pole 1 slides and is located in head rest pole mounting hole 11, and headrest guide sleeve 3 via the top being fixed on automotive seat outside it, thus realizes resting the head on the installation on automotive seat.On headrest guide sleeve 3, circular mounting groove 10 is had in the arranged outside of head rest pole mounting hole 11 in the present embodiment, mounting groove 10 makes headrest guide sleeve 3 form housing structure on the whole, namely snap lock locking mechanism and rotation release mechanism are arranged in mounting groove 10, also make this headrest Locking Device integral structure comparatively compact thus, be also convenient to the layout on automotive seat.
Snap lock locking mechanism in the present embodiment comprises the resilient locking element 9 in the mounting groove 10 be arranged on headrest guide sleeve 3, resilient locking element 9 can be a kind of torsion spring structure as shown in Figure 2, now one end of resilient locking element 9 can be fixed in the mounting groove 10 of headrest guide sleeve 3 via the mounting blocks 14 be connected on headrest guide sleeve 3, and the other end of resilient locking element 9 is then positioned at the position of head rest pole mounting hole 11.Structure when head rest pole 1 is installed on headrest guide sleeve 3 can as shown in fig. 1, and one end that now resilient locking element 9 is positioned at head rest pole mounting hole 11 place then can be subject to the extruding of head rest pole 1 to it, and can be pressed on because of the elasticity of himself on head rest pole 1.If when certain lock groove 8 on head rest pole 1 is now right against resilient locking element 9, one end that resilient locking element 9 is arranged in headrest mounting hole 11 place also just can embed lock groove 8 under himself elasticity, at this moment can realize the locking of head rest pole 1 on headrest guide sleeve 3.
Certain resilient locking element 9 is except can be above-mentioned torsion spring version, it yet can adopt stage clip to connect the version of a fixture block, now one end of stage clip can be fixed on via mounting blocks 14 in the mounting groove 10 on headrest guide sleeve 3 equally, and the other end of stage clip then connects fixture block.And in order to realize via rotation release mechanism to the unblock of snap lock locking mechanism, one end that fixture block is now right against head rest pole mounting hole 11 need be set to arcwall face.When head rest pole 1 is installed on headrest guide sleeve 3, fixture block in resilient locking element 9 now can be pressed on head rest pole 1 under the elastic force of stage clip, when certain lock groove 8 on head rest pole 1 is right against fixture block, fixture block just can embed in lock groove 8 under the effect of stage clip, thus realizes the locking of head rest pole 1 on headrest guide sleeve 3.
As shown in Figure 3, it comprises the movable turning block 2 be set on head rest pole 1 to the structure of the rotation release mechanism in the present embodiment, and turning block 2 is a circular block, is provided with the through hole passed for head rest pole 1 in the middle.The external diameter of turning block 2 is slightly less than the internal diameter of the mounting groove 10 on headrest guide sleeve 3, to make in the rotating mounting groove 10 be installed on headrest guide sleeve 3 of turning block 2.Rotation release mechanism in the present embodiment also comprises the block 7 be connected on turning block 2, the position of block 7 on turning block 2 is arranged can be as shown in Figure 3, now for ease of describing, when being installed on by turning block 2 in the mounting groove 10 on headrest guide sleeve 3 (mounting structure now can as shown in fig. 1), the resilient locking element 9 that the correspondence position of resilient locking element 9 on turning block 2 is placed separately via in figure 3 shows.It can thus be appreciated that when the position setting of block 7 on turning block 2 can make turning block 2 be installed in mounting groove 10, block 7 is arranged in the original position that resilient locking element 9 embeds lock groove 8 just.Like this when turning block 2 rotates around head rest pole 1 in mounting groove 10, pushing tow is carried out in the one end that can embed in lock groove 8 via block 7 pairs of resilient locking element 9, deviate from by lock groove 8 with the one end making resilient locking element 9 embed in lock groove 8, now also namely achieve the unblock between resilient locking element 9 and head rest pole 1.
On turning block 2, being also axially provided with one along it in the present embodiment and rotating projection 6, rotating the opposite side of projection 6 for being arranged on turning block 2 relative to block 7.And on headrest guide sleeve 3 also correspondence as shown in Figure 2 be provided with a rotation slot 12, when turning block 2 is installed in mounting groove 10, the rotation projection 6 on turning block 2 can penetrate in rotation slot 12, can stretch out by headrest guide sleeve 3.And rotation slot 12 is the deep-slotted chip breaker that arranges concentric on the head rest pole mounting hole 11 on headrest guide sleeve 3 in the present embodiment, therefore when applying propulsive effort to the rotation projection 6 stretched out in by rotation slot 12, can make to rotate projection 6 to slide along rotation slot 12, namely the turning block 2 being simultaneously arranged in mounting groove 10 also starts to rotate around head rest pole 1, the block 7 be arranged on like this on turning block 2 also just can carry out pushing tow to one end that resilient locking element 9 embeds in lock groove 8, thus realize the unblock of head rest pole 1 on headrest guide sleeve 3.
Structure when making turning block 2 and head rest pole 1 be installed on headrest guide sleeve 3 in the present embodiment can as shown in fig. 1, and shown in Fig. 1 be state when head rest pole 1 is locked on headrest guide sleeve 3.With the position shown in Fig. 1 and direction for benchmark, it can thus be appreciated that when needing the latched position of adjustment head rest pole 1 on headrest guide sleeve 3, when also namely needing the locking of the lock groove 8 removed on resilient locking element 9 pairs of head rest poles 1, turning effort can be applied in the direction of the clock to the rotation projection 6 on turning block 2, make to rotate projection 6 slid clockwise in rotation slot 12, now turning block 2 then can carry out clws rotation around head rest pole 1.Pushing tow is carried out in one end that the rotation of turning block 2 drives block 7 to start to embed resilient locking element 9 lock groove 8, and the one end making resilient locking element 9 embed in lock groove 8 is thus deviate from from lock groove 8, and such head rest pole 1 just can be axially freely movable along it.And when head rest pole 1 is adjusted to correct position, just the turning effort to rotating projection 6 applying can be removed, now due to the elasticity of resilient locking element 9 self, resilient locking element 9 just can order about block 7 round about by the one end of deviating from lock groove 8, also namely anticlockwise direction rotates, turning block 2 and on rotation projection 6 also next can be driven to play rotation at block 7, until resilient locking element 9 embeds in the lock groove 8 on head rest pole 1 again, at this moment also just the locking of the recovery after adjustment is achieved to head rest pole 1.
In the present embodiment, rotation slot 12 can be and arrange longer length on headrest guide sleeve 3, now in order to avoid causing losing between block 7 with resilient locking element 9 contacting because rotation projection 6 drives turning block 2 to rotate excessively, thus cause the problem of Locking Device inefficacy, headrest guide sleeve 3 also can arrange a limiting stopper 15 as shown in Figure 2, limiting stopper 15 can when block 7 pushing tow resilient locking element 9 embeds one end in lock groove 8 to certain position, this one end of resilient locking element 9 is stopped, thus can the further rotation of limit stop 7, also just avoid block 7 thus to turn to and disengage with resilient locking element 9 and cause Locking Device to lose efficacy.Certainly except arranging except the form of limiting stopper 15 on headrest guide sleeve 3, also by making rotation slot 12 be set to the length-specific be suitable in the present embodiment, and realize the control of turning block 2 around the amount of spin of head rest pole 1, such setting is also more simple compared to the form arranging limiting stopper 15.But from increasing Locking Device structural stability and using the angle of validity to consider, certainly also can be as shown in Figure 1, these two kinds of spacing forms of rotation slot 12 of limiting stopper 15 and length-specific are all given use.
Embodiment two
The present embodiment relates to a kind of headrest Locking Device, as as shown in Fig. 4 to Fig. 6, this headrest Locking Device has the structure roughly the same with the headrest Locking Device in embodiment one, difference is on turning block 2, not arrange rotation projection in the present embodiment, and headrest guide sleeve 3 does not then arrange rotation slot.For realizing the driving of the rotation of turning block 2 in mounting groove 10 in the present embodiment, on headrest guide sleeve 3, being provided with the breach 13 be connected with mounting groove 10 as shown in Figure 5, and the sidepiece of turning block 2 is provided with turn knob 5 as shown in Figure 6.When turning block 2 is installed in mounting groove 10, turn knob 5 on turning block 2 can be as shown in Figure 4 with the mated condition of the breach 13 on headrest guide sleeve 3, now turn knob 5 is arranged in breach 13, and stretch out by breach 13, the driving of the turning block 2 to mounting groove 10 just can be realized thus via turn knob 5.
In the present embodiment, breach 13 can be and be set to longer length along its week side on headrest guide sleeve 3, now cause disengaging between block 7 and resilient locking element 9 for preventing because turn knob 5 drives turning block 2 to rotate excessively, still can be and be provided with limiting stopper 15 on headrest guide sleeve 3.Certainly except arranging limiting stopper 15, yet can utilize and making the length-specific that breach 13 is set to be suitable for and the control realized turning block 2 amount of spin.And from increasing Locking Device structural stability and using the angle of validity to consider, two kinds of above-mentioned modes also can be and are used as shown in Figure 4 simultaneously.
And on above-mentioned architecture basics, be the further stability increasing turning block 2 and rotate in mounting groove 10 in the present embodiment, also can be as shown in Figure 7, turning block 2 is provided with an orienting lug 16, and correspondence is provided with a guide groove 17 on headrest guide sleeve 3.Orienting lug 16 is substantially identical with the structure of rotation slot with the rotation projection in embodiment one with the structure of guide groove 17, but for avoiding unnecessary interference, the orienting lug 16 in the present embodiment can stretch out by guide groove 17.The releasing process of Locking Device in the present embodiment, and the control process of head rest pole 1 is all roughly the same with embodiment one, no longer repeats at this.
Claims (10)
1. a headrest Locking Device, comprise the headrest guide sleeve be slidably sheathed on head rest pole, head rest pole is provided with multiple tracks lock groove along its axis at intervals, it is characterized in that: also comprise be connected in headrest guide sleeve, embed in lock groove under natural resiliency, snap lock locking mechanism on described headrest guide sleeve is locked in make head rest pole, and be movably set on described head rest pole, its by external force drive and rotate around head rest pole time, pushing tow is carried out to described snap lock locking mechanism, to make snap lock locking mechanism by the rotation release mechanism deviate from lock groove.
2. headrest Locking Device according to claim 1, is characterized in that: the outside in head rest pole on described headrest guide sleeve is provided with mounting groove, described snap lock locking mechanism is placed in mounting groove, and described rotation release mechanism movable set is in mounting groove.
3. headrest Locking Device according to claim 2, it is characterized in that: described snap lock locking mechanism comprises the resilient locking element be connected in mounting groove, one end of described resilient locking element is connected on headrest guide sleeve, and the other end of resilient locking element embeds in lock groove under resilient locking element natural resiliency.
4. headrest Locking Device according to claim 3, it is characterized in that: described rotation release mechanism comprises and being movably set on head rest pole and the turning block of movable set in described mounting groove, and be arranged on described turning block, when turning block rotates around head rest pole, described resilient locking element one end embedded in lock groove is carried out to the block of pushing tow, described turning block is provided with by the rotating drive mechanism stretching out, order about with bear external force turning block in headrest guide sleeve and rotate around head rest pole.
5. headrest Locking Device according to claim 4, it is characterized in that: described rotating drive mechanism comprises the rotation projection axially arranged along it be fixed on turning block, described headrest guide sleeve is provided with and makes described rotation projection by stretching out in headrest guide sleeve, to order about the rotation slot that turning block carries out around head rest pole rotating via described rotation projection.
6. headrest Locking Device according to claim 5, is characterized in that: described sliding tray be located on headrest guide sleeve, spacing deep-slotted chip breaker can be carried out to described rotation projection around the amount of spin of head rest pole.
7. headrest Locking Device according to claim 4, it is characterized in that: described rotating drive mechanism comprises the turn knob radially arranged being fixed on turning block sidepiece, described headrest guide sleeve is provided with and communicates with the mounting groove in it, to make described turn knob by the breach stretched out in headrest guide sleeve.
8. headrest Locking Device according to claim 7, it is characterized in that: be provided with along its axial arranged orienting lug on described turning block, described headrest guide sleeve is provided with and makes described orienting lug by stretching out in headrest guide sleeve and the guide groove led around the rotation of head rest pole to described orienting lug.
9. the headrest Locking Device according to claim 5 or 7, is characterized in that: be provided with in described mounting groove be fixed on headrest guide sleeve, relative to the displacement of deviating from of lock groove, spacing limiting stopper is carried out to one end that described resilient locking element embeds in lock groove.
10. headrest Locking Device according to claim 4, is characterized in that: the position that described turning block is right against resilient locking element is set to recessed recess, and described block is located in recess, and described resilient locking element is arranged in recess.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420490052.7U CN204136826U (en) | 2014-08-28 | 2014-08-28 | Headrest locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420490052.7U CN204136826U (en) | 2014-08-28 | 2014-08-28 | Headrest locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204136826U true CN204136826U (en) | 2015-02-04 |
Family
ID=52413535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420490052.7U Expired - Fee Related CN204136826U (en) | 2014-08-28 | 2014-08-28 | Headrest locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204136826U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018076230A1 (en) * | 2016-10-27 | 2018-05-03 | Daimay North America Automotive, Inc. | Headrest assembly |
| CN112450634A (en) * | 2020-06-24 | 2021-03-09 | 延锋安道拓座椅有限公司 | Double-locking headrest guide sleeve structure |
| US11142108B2 (en) | 2018-04-20 | 2021-10-12 | Daimay North America Automotive, Inc. | Bushing arrangement for headrest assembly |
| US11192482B2 (en) | 2018-08-06 | 2021-12-07 | Daimay North America Automotive, Inc. | Headrest assembly including locking arrangement reducing BSR |
-
2014
- 2014-08-28 CN CN201420490052.7U patent/CN204136826U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018076230A1 (en) * | 2016-10-27 | 2018-05-03 | Daimay North America Automotive, Inc. | Headrest assembly |
| US10821869B2 (en) | 2016-10-27 | 2020-11-03 | Daimay North America Automotive, Inc. | Headrest assembly |
| US11142108B2 (en) | 2018-04-20 | 2021-10-12 | Daimay North America Automotive, Inc. | Bushing arrangement for headrest assembly |
| US11192482B2 (en) | 2018-08-06 | 2021-12-07 | Daimay North America Automotive, Inc. | Headrest assembly including locking arrangement reducing BSR |
| CN112450634A (en) * | 2020-06-24 | 2021-03-09 | 延锋安道拓座椅有限公司 | Double-locking headrest guide sleeve structure |
| CN112450634B (en) * | 2020-06-24 | 2023-12-01 | 延锋国际座椅系统有限公司 | Double-locking headrest guide sleeve structure |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150204 |