CN216833348U - Seat headrest adjusting mechanism - Google Patents
Seat headrest adjusting mechanism Download PDFInfo
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- CN216833348U CN216833348U CN202220280651.0U CN202220280651U CN216833348U CN 216833348 U CN216833348 U CN 216833348U CN 202220280651 U CN202220280651 U CN 202220280651U CN 216833348 U CN216833348 U CN 216833348U
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- headrest
- guide sleeve
- sleeve body
- sliding
- adjusting mechanism
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Abstract
The utility model discloses a seat headrest adjustment mechanism, it includes: a guide sleeve body for inserting the headrest inserting rod; a plurality of notches which are arranged at the side part of the headrest inserted link at intervals; the locking end button is arranged on the guide sleeve body in a position-adjustable manner and corresponds to the headrest inserted link, and a locking piece clamped in the notch is formed on the locking end button; the sliding block is slidably arranged in the guide sleeve body and is in driving connection with the lock end button; one end of the inhaul cable is connected with the sliding block, and the other end of the inhaul cable extends out of the guide sleeve body; the slider slides relative to the inserted position of the headrest inserted link under the pulling of the inhaul cable, so that the lock end button is driven to move, the locking piece is separated from the notch, and the restraint on the headrest inserted link is released. The utility model discloses solved the comparatively difficult problem of seat headrest falling completely effectively, optimized the adjustment mechanism of seat headrest for the headrest can fall completely, and is easy and simple to handle, promotes user's use and feels, and simple structure, easily realizes.
Description
Technical Field
The utility model relates to an automobile parts technical field, concretely relates to seat headrest adjustment mechanism.
Background
In order to increase the storage space, many automobile models require the rear seat to have a tilting function. Currently, the steps for realizing the turnover of the back row seat backrest are as follows: firstly, unlocking the headrest and lowering the headrest to the lowest position; secondly, the backrest is unlocked and turned over and laid down. If the customer does not lower the headrest to the lowest position first, the rear row headrest protrudes more, interferes with the rear of the front row seat in the backrest folding process, and cannot be turned to the specified position.
In the practical application process, when the whole pulling-out mode is adopted, the length of the adjusting rod of some headrests is longer (about 226mm), the whole pulling-out mode is inconvenient, the subsequent reinsertion is difficult, and the use feeling is poor; in the full-down mode, it is generally necessary to press a button to allow the headrest to fall, such button is generally disposed at a position of the backrest close to the headrest adjusting lever, the user's hand may be caught between the headrest and the backrest during the falling of the headrest, and the headrest cannot fall down to the lowest position because a certain manipulation space is required for the user to manipulate the button.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a seat headrest adjustment mechanism has solved the comparatively difficult problem of seat headrest falls completely, optimizes the adjustment mechanism of seat headrest for the headrest can fall completely easy and simple to handle, promotes user's use and feels, and simple structure, easily realizes.
The utility model adopts the technical proposal that:
a seat headrest adjustment mechanism, comprising:
a guide sleeve body for inserting the headrest inserting rod;
the notches are arranged at the side parts of the headrest inserted rods at intervals;
the locking end button is arranged on the guide sleeve body in a position-adjustable manner and corresponds to the headrest inserted link, and a locking piece clamped in the notch is formed on the locking end button;
the sliding block is slidably arranged in the guide sleeve body and is in driving connection with the lock end button;
one end of the inhaul cable is connected with the sliding block, and the other end of the inhaul cable extends out of the guide sleeve body;
the slider slides relative to the insertion position of the headrest inserted link under the pulling of the inhaul cable, so that the lock end button is driven to move, the locking piece is disengaged from the notch, and the restraint on the headrest inserted link is released.
Optionally, an insertion rod opening corresponding to the headrest insertion rod is formed in the lock end button, and the locking piece is fixed to one side in the insertion rod opening.
Optionally, one side of the lock end button, which is close to the locking piece, is further provided with a driving port, a driving block is arranged on the slider, which corresponds to the driving port, and the driving block drives the lock end button to move along with the sliding of the slider.
Optionally, a side of the slider close to the headrest insertion rod is provided with a protruding elastic friction member, and the elastic friction member is in contact with the headrest insertion rod when the slider is not pulled by the cable to slide.
Optionally, the width of the driving port is greater than the width of the driving block, and a gap is always kept between the driving block and the driving port when the sliding block is not pulled by the inhaul cable to slide.
Optionally, the slider slides in the guide sleeve body through a slide rail assembly, and the slide rail assembly is arranged in an inclined manner relative to the insertion direction of the headrest insertion rod.
Optionally, the sliding rail assembly comprises a sliding rail arranged in the guide sleeve body in an inclined mode and a sliding groove arranged on the sliding block in an inclined mode, and the sliding rail is connected with the sliding groove in a sliding mode.
Optionally, the sliding rail assembly includes a long and narrow groove obliquely disposed in the guide sleeve body and a projection obliquely disposed on the slider, and the long and narrow groove is slidably connected to the projection.
Optionally, a portion of the guy cable located in the guide sleeve body is parallel to the arrangement direction of the sliding rail assembly.
Optionally, a reset torsion spring in driving connection with the slider is further arranged in the guide sleeve body, and a reset force opposite to the pulling force direction of the inhaul cable is applied to the slider by the reset torsion spring.
Optionally, the locking end button is elastically and movably mounted on the guide sleeve body through a horizontal spring.
Optionally, the guide sleeve body is provided with a side opening for the sliding block to slide out.
Optionally, a cable mounting hole through which the cable passes is formed in the guide sleeve body.
Optionally, a cable groove for connecting one end of the cable is formed in the slider, and a central connecting line between the cable groove and the cable mounting hole is parallel to the sliding direction of the slider.
The utility model discloses owing to adopt above-mentioned technical scheme, make it have following beneficial effect:
the utility model discloses a seat headrest adjustment mechanism, can drive the slider through the pulling cable and slide, and drive lock end button removes, make the lock piece deviate from the notch, and remove the restraint to the headrest inserted bar, thereby the headrest inserted bar receives self action of gravity whereabouts, even the user only need stimulate the cable can (the cable can also be connected with seat tilting mechanism, when the back overturns, the automatic headrest unblock that stimulates of cable, whereabouts to the lowest position, the operation is very simple, and at headrest whereabouts in-process, user's hand can not block between the top of headrest and the back of the chair, the headrest can realize falling completely, the comparatively difficult problem of seat headrest falls completely has been solved, optimize the adjustment mechanism of seat headrest, make the headrest can fall completely, and is easy and simple to handle, promote user's use and feel, and simple structure, and easy to realize.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a seat headrest adjusting mechanism in a locked state according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of the seat headrest adjusting mechanism provided in the embodiment of the present invention in an unlocked state.
Fig. 3 is an enlarged schematic view of a portion a in fig. 2.
Fig. 4 is a schematic view of a three-dimensional structure of the driving block and the lock end button in a locked state according to an embodiment of the present invention.
Fig. 5 is a schematic view of a three-dimensional structure of the driving block and the lock end button in an unlocked state according to an embodiment of the present invention.
Fig. 6 is a schematic perspective view of a seat headrest adjusting mechanism according to an embodiment of the present invention.
Fig. 7 is an exploded schematic view of a seat headrest adjusting mechanism according to an embodiment of the present invention.
Fig. 8 is a schematic view of an assembly structure of the guide sleeve body and the slider provided by the embodiment of the present invention.
Fig. 9 is a schematic structural diagram of a first side surface of a slider according to an embodiment of the present invention.
Fig. 10 is a schematic structural diagram of a second side surface of the slider according to an embodiment of the present invention.
Fig. 11 is a schematic view of a cable unlocking process provided by an embodiment of the present invention.
Fig. 12 is a schematic view of a button adjustment process provided by an embodiment of the present invention.
Fig. 13 is a schematic structural view of the reset torsion spring provided by the embodiment of the present invention in a free state, a locked state and an unlocked state.
Fig. 14 is a schematic view of a use state of the restoring torsion spring in the locking state of the insert rod according to the embodiment of the present invention.
Fig. 15 is a schematic view of the use state of the reset torsion spring in the unlocking state of the inserted link according to the embodiment of the present invention.
The correspondence of reference numerals is as follows:
1-free end cap; 2-guide sleeve body; 21-torsion spring catch point; 22-torsion spring mounting post; 23-a slide rail; 24-a narrow groove; 25-a cable mounting hole; 26-side opening; 3-a reset torsion spring; 4-a slide block; 41-a chute; 42-a bump; 43-free end elastic friction member; 44-torsion spring mounting holes; 45-a drive block; 46-a lock end resilient friction member; 47-a cable groove; 48-free end sliding sleeve; 5-locking end cap; 6-locking end button; 61-a rod-inserting port; 62-a drive port; 63-button boss; 7-a locking pin; 8-a button spring; 9-headrest insert rod; 91-notch; 10-a guy cable; 101-a cable base; 102-a cable end; 11-a backrest; 12-headrest.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 10, an embodiment of the present invention provides a seat headrest adjusting mechanism, which mainly includes a guide sleeve body 2, a lock end button 6, a slider 4, a cable 10 and a plurality of notches 91 spaced apart from each other and disposed on a side portion of a headrest rod 9.
2 inside hollows of guide pin bushing body, fixed mounting is in the top position of car seat back when using, two jacks have been seted up at this guide pin bushing body 2's top, two headrest inserted bars 9 that supply the headrest insert and establish, as shown in fig. 1 and fig. 2, the right side is the lock end of headrest, the left side is the free end, lock end button 6 is installed in the cooperation on the jack on guide pin bushing body 2 right side, it is provided with inserted bar mouth 61 to correspond headrest inserted bar 9 on the lock end button 6, be formed with the locking piece that supplies the card to locate in notch 91 in the lock end button 6, locking piece adopts locking pin 7 in this embodiment, locking pin 7 is fixed in one side in inserted bar mouth 61.
The lock end button 6 can be installed on the jack of the lock end of the guide sleeve body 2 in a left-right moving mode, furthermore, a lock end cap 5 is arranged on the lock end button 6, an opening for the lock end button 6 to penetrate out is formed in the right side of the lock end cap 5, the lock end button 6 can move left and right in the lock end cap 5, the lock end button 6 and the lock end cap 5 can be connected through two button springs 8, the two button springs 8 are symmetrically located on the front side and the rear side of the lock end button 6, when the lock end button 6 is pressed inwards relative to the lock end cap 5, the button springs 8 are compressed, after the lock end button 6 is loosened, the button springs 8 extend, and the lock end button 6 is pushed out to reset.
Further, the notch 91 is located on the side portion of the headrest plug rod 9 close to the locking pin 7, the lock end button 6 is not pressed in the initial state, the two button springs 8 are extended to push the locking pin 7 into the notch 91 at the corresponding position of the headrest plug rod 9, and the headrest plug rod 9 is locked. When the head restraint button 6 is pressed inwards, the button spring 8 is compressed, the locking pin 7 is separated from the notch 91, the restraint on the head restraint inserted rod 9 is removed, the force in the vertical direction can be applied to the head restraint inserted rod to adjust the position of the head restraint, after the adjustment is in place, the locking end button 6 is loosened, the locking end button 6 receives the reset force provided by the button spring 8 and moves along the horizontal direction until the locking end button 9 is contacted, the head restraint is adjusted to be flush with the locking pin 7 and the notch 91 on the head restraint inserted rod 9, then the locking pin 7 enters the notch 91 to lock the head restraint at the corresponding height position, the process can refer to fig. 12, and the adjustment of the head restraint position by the locking end button 6 is realized.
The free end of the guide sleeve body 2 is provided with a free end cap cover for inserting the jack of the headrest inserting rod 9, the free end does not need to be provided with a lock end button, and the headrest is locked as long as one of the two headrest inserting rods is locked. Of course, if desired, the free end can be modified to be the same as the lock end so that both headrest posts can be locked more securely.
The sliding block 4 is slidably arranged in the guide sleeve body 2 and is in driving connection with the locking end button 6. Referring to fig. 4-5, a driving opening 62 is further formed in one side of the lock end button 6 close to the locking pin 7, a driving block 45 is arranged on the slider 4 corresponding to the driving opening 62, and the driving block 45 can contact with the lock end button 6 along with the sliding of the slider 4, and then drives the lock end button 6 to move, so as to unlock the headrest.
The slider 4 is further provided with a protruding lock end elastic friction member 46 and a free end elastic friction member 43 at the side close to the headrest plug-in lever 9, and the slider is provided with a free end sliding bush 48 at the free end, the free end elastic friction member 43 is located on the side away from the slider body portion inside the free end sliding bush 48, and the width of the inner side of the free end sliding bush 48 is larger than the width of the headrest plug-in lever 9. In the initial state, the free end headrest rod is located in the free end sliding sleeve 48 and one side part is contacted with the free end elastic friction piece 43, and the lock end elastic friction piece 46 is contacted with the side part of the lock end headrest rod 9 to provide friction force.
Furthermore, a side opening 26 is formed at one end of the free end of the guide sleeve body 2 corresponding to the free end sliding sleeve 48 of the sliding block 4, so that the sliding path of the sliding block is ensured to be free of interference.
Further, the width of the driving opening 62 of the lock end button 6 is larger than the width of the driving block 45, and as shown in fig. 4 and 5, in the initial state, a safety gap L1 is kept between one side edge of the driving opening 62 close to the locking pin 7 and the driving block 45, as shown in fig. 4, and at this time, the elastic friction members at both ends are respectively kept in contact with the two headrest rods to provide proper operating force. When the lock end button 6 is pressed to unlock the headrest rods, the gap L2 becomes smaller but larger than 0, so that the edge of the lock end button 6 is ensured not to contact with the driving block 45, i.e. the sliding block 4 is not triggered to slide, and at this time, the elastic friction pieces at the two ends are respectively kept in contact with the two headrest rods to provide proper operating force, and the unlocking distance L' of the lock end button 6 is L1-L2. Therefore, the lock pin 7 is pulled out of the notch 91 by pressing the lock end button 6, and the restraint on the headrest rod 9 is released, so that the headrest position can be adjusted by applying a vertical force to the headrest rod 9. At the same time, the elastic friction member on the slider 4 is kept in contact with the headrest plug rod 9, providing an appropriate operating force.
Referring to fig. 6, the cable 10 has a cable end 102 connected to the cable groove 47 at the bottom of the slider 4, and a second end extending out of the cable mounting hole 25 at the bottom of the guide sleeve body 2, and further, the cable 10 is provided with a cable base 101 at a position close to the second end, and the cable base 101 is fixed in the cable mounting hole 25.
The slider 4 can slide close to or slide away from relative to the inserted position of the headrest inserted link 9 under the pulling of the inhaul cable 10, so that the drive lock end button 6 moves, the locking pin 7 is separated from the notch 91, the restraint on the headrest inserted link 9 is removed, and the headrest inserted link 9 is completely fallen under the action of self gravity.
Further, the slider 4 slides in the guide sleeve body 2 through a slide rail assembly, the slide rail assembly is disposed in an inclined manner at a certain angle with respect to the insertion direction of the headrest insertion rod 9, as shown in fig. 7 to 10, the slide rail assembly includes a slide rail 23 and a slot 24 which are disposed in parallel in the guide sleeve body 2 and correspond to the upper and lower sides of the slider 4, and a slide groove 41 and a protrusion 42 which are disposed at the upper and lower sides of the slider 4 and slide in cooperation with the slide rail 23 and the slot 24 are correspondingly disposed. The part of the guy cable 10 in the guide sleeve body 2 is parallel to the arrangement direction of the sliding rail component. The guide sleeve body 2 is also internally provided with a reset torsion spring 3 which is in driving connection with the sliding block 4, and the reset torsion spring 3 applies reset force opposite to the pulling force direction of the inhaul cable 10 to the sliding block 4. The guide sleeve body 2 is internally provided with a torsion spring mounting column 22 and a torsion spring stop point 21 for mounting and limiting the reset torsion spring 3, the torsion spring mounting column 22 is used for mounting the reset torsion spring 3, and the torsion spring stop point 21 is used for limiting one end of the reset torsion spring 3. A torsion spring mounting hole 44 is arranged at a corresponding position on the sliding block 4 and used for limiting the other end of the reset torsion spring 3. The configuration of the return torsion spring 3 is shown in fig. 13, where the left diagram shows a state where the return torsion spring 3 is at an initial angle (free state) α 0, the middle diagram shows a state where the return torsion spring 3 is at a headrest insert lever lock position angle α 1, and the right diagram shows a state where the return torsion spring 3 is at a headrest insert lever unlock position angle α 2, where the unlock angle α is α 1- α 2. In addition, the use state of the return torsion spring 3 in the pre-load state (initial plunger lock position, angle α 1) is shown in fig. 14, and the use state of the return torsion spring 3 in the forced state (initial plunger unlock position, angle α 2) is shown in fig. 15.
The utility model discloses a seat headrest adjustment mechanism can realize two kinds of unblock modes:
the first adjusting mode is as follows: cable unlocking
Unlocking action:
the inhaul cable 10 is pulled to drive the sliding block 4 to move obliquely downwards and move into the side opening 26, the sliding rail 23, the sliding groove 41, the narrow groove 24 and the protruding block 42 are matched to slide, the driving block 45 is in contact with the locking end button 6 along with the sliding of the sliding block 4, then the locking end button 6 is driven to move, the locking end button 6 drives the locking pin 7 to move, the locking pin 7 is made to be separated from the notch 91, and the restraint on the headrest inserted link 9 is released. And at the same time, the frictional force between the elastic friction member of the slider 4 and the headrest rod 9 is released. Thereby enabling the headrest to fall completely by its own weight.
Resetting action:
the inhaul cable 10 is loosened, the sliding block 4 moves towards the oblique direction under the reset force of the torsion spring 3 until the elastic friction piece on the sliding block 4 contacts the headrest inserted link 9, and the reset is completed.
And a second adjusting mode: push button adjustment
Unlocking action:
the lock end button 6 is pressed to disengage the lock pin 7 from the notch 91, and the restraint on the headrest insert rod 9 is released, so that the headrest position can be adjusted by applying a vertical force to the headrest insert rod 9. At the same time, the elastic friction member on the slider 4 is kept in contact with the headrest plug rod 9, providing an appropriate operating force.
Resetting action:
the lock end button 6 is released and the lock end button 6 is moved in the horizontal direction by the return force provided by the button spring 8 until it contacts the headrest rod 9. When the headrest is adjusted up and down until the locking pin 7 is flush with the notch 91 at the corresponding position on the headrest insert rod 9, the locking pin 7 enters the notch 91 to lock the headrest at the corresponding height position.
As further shown in fig. 11 and 12, the seat headrest adjusting mechanism of the present invention is installed on the top of the car seat backrest 11 when in use, and the headrest 2 is inserted into the guide sleeve body 2 of the mechanism through the headrest rod 9. The cable 10 can link with the mechanism of overturning of backrest, at first stimulates the cable when overturning the backrest downwards, through the utility model discloses a seat headrest adjustment mechanism falls the headrest to the extreme low position in advance, carries out the seat and overturns again, avoids interfering or causing other injuries etc. with the front bank because of forgetting the adjustment headrest and cause the seat to overturn the in-process. In addition, can also cause the cable pulling by accuse appearance in trunk switch or the automobile body, trigger the utility model discloses a seat headrest adjustment mechanism works, realizes adopting mode such as accuse appearance key unblock in pressing trunk key to fall or the automobile body.
The utility model discloses a seat headrest adjustment mechanism, can drive the slider through the pulling cable and slide, and drive lock end button removes, make the locking piece deviate from the notch, and remove the restraint to the headrest inserted bar, thereby the headrest inserted bar receives self action of gravity whereabouts, even the user only need stimulate the cable can, the operation is very simple, and at headrest whereabouts in-process, user's hand can not block between the top of headrest and the back of the chair, the headrest can realize falling completely, the comparatively difficult problem of seat headrest falling completely has been solved, optimize the adjustment mechanism of seat headrest, make the headrest fall completely, and is easy and simple to handle, promote user's use and feel, and simple structure, and easy to realize.
The part not involved in the utility model is the same as the prior art or can be realized by adopting the prior art. Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (13)
1. A seat headrest adjusting mechanism, comprising:
a guide sleeve body for inserting the headrest inserting rod;
the notches are arranged at the side parts of the headrest inserted rods at intervals;
the locking end button is arranged on the guide sleeve body in a position-adjustable manner and corresponds to the headrest inserted link, and a locking piece clamped in the notch is formed on the locking end button;
the sliding block is slidably arranged in the guide sleeve body and is in driving connection with the lock end button;
one end of the inhaul cable is connected with the sliding block, and the other end of the inhaul cable extends out of the guide sleeve body;
the slider slides relative to the insertion position of the headrest inserted link under the pulling of the inhaul cable, so that the lock end button is driven to move, the locking piece is disengaged from the notch, and the restraint on the headrest inserted link is released.
2. The seat headrest adjusting mechanism according to claim 1, wherein: the lock end button is provided with an inserted rod port corresponding to the headrest inserted rod, and the locking piece is fixed on one side in the inserted rod port.
3. The seat headrest adjusting mechanism as claimed in claim 2, wherein: one side of the lock end button, which is close to the locking piece, is also provided with a driving port, a driving block is arranged on the sliding block corresponding to the driving port, and the driving block drives the lock end button to move along with the sliding of the sliding block.
4. The seat headrest adjusting mechanism according to claim 3, wherein: one side of the slider, which is close to the headrest inserted bar, is provided with a protruding elastic friction piece, and the elastic friction piece is in contact with the headrest inserted bar when the stay cable does not pull the slider to slide.
5. The seat headrest adjusting mechanism according to claim 3, wherein: the width of the driving port is larger than that of the driving block, and a gap is always kept between the driving block and the driving port when the sliding block slides without being pulled by the inhaul cable.
6. The seat headrest adjusting mechanism according to any one of claims 1 to 5, wherein: the slider slides in the guide sleeve body through a sliding rail assembly, and the sliding rail assembly is obliquely arranged relative to the inserting direction of the headrest inserting rod.
7. A seat headrest adjusting mechanism according to claim 6, wherein: the sliding rail assembly comprises a sliding rail arranged in the guide sleeve body in an inclined mode and a sliding groove arranged on the sliding block in an inclined mode, and the sliding rail is connected with the sliding groove in a sliding mode.
8. A seat headrest adjusting mechanism according to claim 6, wherein: the sliding rail assembly comprises a long and narrow groove obliquely arranged in the guide sleeve body and a convex block obliquely arranged on the sliding block, and the long and narrow groove is connected with the convex block in a sliding mode.
9. The seat headrest adjusting mechanism according to claim 1, wherein: the guide sleeve body is also internally provided with a reset torsion spring in driving connection with the sliding block, and the reset torsion spring applies reset force opposite to the pulling force direction of the inhaul cable to the sliding block.
10. The seat headrest adjusting mechanism according to claim 1, wherein: the locking end button is elastically and movably arranged on the guide sleeve body through a horizontal spring.
11. The seat headrest adjusting mechanism according to claim 1, wherein: and a side opening for sliding the sliding block out is formed in the guide sleeve body.
12. The seat headrest adjusting mechanism according to claim 1, wherein: and the guide sleeve body is provided with a cable mounting hole for the cable to penetrate out.
13. The seat headrest adjusting mechanism as claimed in claim 12, wherein: the sliding block is provided with a cable groove for connecting one end of the cable, and the central connecting line of the cable groove and the cable mounting hole is parallel to the sliding direction of the sliding block.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN202220280651.0U CN216833348U (en) | 2022-02-11 | 2022-02-11 | Seat headrest adjusting mechanism |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN202220280651.0U CN216833348U (en) | 2022-02-11 | 2022-02-11 | Seat headrest adjusting mechanism |
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CN216833348U true CN216833348U (en) | 2022-06-28 |
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CN202220280651.0U Active CN216833348U (en) | 2022-02-11 | 2022-02-11 | Seat headrest adjusting mechanism |
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CN (1) | CN216833348U (en) |
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2022
- 2022-02-11 CN CN202220280651.0U patent/CN216833348U/en active Active
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