CN113306468B

CN113306468B - Sliding locking mechanism of headrest support and automobile seat headrest support

Info

Publication number: CN113306468B
Application number: CN202110792087.0A
Authority: CN
Inventors: 崔国宪
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-07-13
Filing date: 2021-07-13
Publication date: 2022-10-04
Anticipated expiration: 2041-07-13
Also published as: CN113306468A

Abstract

The invention discloses a sliding locking mechanism of a headrest support and a headrest support of an automobile seat, wherein the sliding locking mechanism comprises a sliding plate fixed to the headrest support and a switching box capable of reciprocating on the sliding plate, a plurality of positioning grooves are formed in one surface of the sliding plate, first sliding parts are respectively arranged on two sides of the sliding plate, second sliding parts matched with the first sliding parts are formed on two sides of the switching box, at least one elastic locking component is arranged in the switching box, and the elastic locking component comprises at least one positioning bead partially extending out of the switching box. The sliding locking structure can be adjusted and locked without disassembling screws, and is simple and convenient to operate; and the headrest support using the sliding locking mechanism can conveniently and simply adjust the position of the headrest in three dimensions of up-down, pitching and front-back, and fully meets the headrest requirements of drivers and passengers.

Description

Sliding locking mechanism of headrest support and automobile seat headrest support

Technical Field

The invention relates to the technical field of automobile articles, in particular to a sliding locking mechanism of a headrest support and an automobile seat headrest support.

Background

With the popularization of automobiles, particularly electric vehicles, the time for self-driving and traveling is more and more. Ride comfort also becomes a new pursuit for users.

The top of the front row or the rear row of the automobile seat is generally provided with a detachable headrest which is used as a pillow part when a driver or a passenger needs to have a rest. The headrest of different models is corresponded to different models, and size and shape all differ, but the automobile headrest structure of vehicle self-carrying is generally fixed, sets up for the demand that adapts to driver or rider's head towards the dead ahead to all can not rotate direction or angle.

With the increase of self-driving travel time and travel time, a driver can choose to take appropriate rest in the automobile from time to time, for example, the backrest is adjusted to incline, and the like, so as to take rest. However, the existing automobile headrest with fixed shape and structure cannot adjust the shape and the posture, cannot meet the requirements of drivers or passengers on different resting postures, and is poor in use experience. Particularly, when a back row of passengers doze off and have a rest in long-distance driving, the existing fixed structure headrest cannot play a supporting role, cannot change along with the posture of the passengers, can only lean on the passengers or the doors of the vehicles, and is poor in riding experience.

In the design of current car or electric automobile articles for use, through a plurality of screw fixed position adjustable car seat headrest on car seat basis, however, a plurality of screws need be dismantled earlier to this kind of seat headrest's adjustment mode, just can adjust the position of the seat headrest who increases, then locks the headrest in the position that will adjust by a plurality of screws, and is very inconvenient.

Therefore, the existing headrest structure design of the car seat needs to be improved.

Disclosure of Invention

Based on the above, in order to solve the technical problems in the prior art, the invention provides a screw-free sliding locking mechanism which is used for a headrest bracket and has simple and convenient up-down position adjustment and locking operation; the automobile seat headrest support has the advantages that the headrest direction can be simply and conveniently adjusted in three dimensions of up-down, pitching and front-back, and the headrest requirements of driving and riding users can be fully met.

In a first aspect, the invention relates to a sliding locking mechanism of a headrest bracket, which comprises a sliding plate and a switching box, wherein the sliding plate is used for being fixed to the headrest bracket, the switching box can reciprocate on the sliding plate, a plurality of positioning grooves are formed on one surface of the sliding plate, the positioning grooves are arranged along the motion track of the switching box, first sliding parts are respectively arranged on two sides of the sliding plate, second sliding parts matched with the first sliding parts are formed on two sides of the switching box, at least one elastic locking component is arranged in the switching box, the elastic locking component comprises at least one positioning bead partially extending out of the switching box, the switching box is shifted, the at least one positioning bead slides on the sliding plate along with the switching box, and the position of the switching box falls into the corresponding positioning groove to realize the position locking in a first direction; the transfer box is shifted, and the at least one positioning bead is shifted out from the corresponding positioning groove, so that unlocking can be realized.

In addition, the sliding locking mechanism is connected with a second direction adjusting component, the second direction adjusting component is linked with a third direction adjusting component, the positioning grooves are arranged in a row on the sliding plate along the motion track of the adapter box, an elastic locking component is arranged in the adapter box, and the elastic locking component comprises a first positioning bead partially extending out of the adapter box.

As a second embodiment of the positioning grooves, the positioning grooves include a first positioning groove and a second positioning groove, the first positioning groove and the second positioning groove are respectively arranged in two rows on the sliding plate along the movement track of the adapter box, a first elastic locking component and a second elastic locking component are arranged in the adapter box, the first elastic locking component includes a first positioning bead, a part of which extends out of the adapter box and is matched with the first positioning groove, and the second elastic locking component includes a second positioning bead, a part of which extends out of the adapter box and is matched with the second positioning groove.

In order to prevent sliding and swinging, the adapter box comprises a first shell and a second shell, wherein the second sliding parts are formed on two sides of the first shell, a limiting piece is arranged in the middle of the first shell, a limiting groove is formed in the middle of the sliding plate, and the limiting piece is used for being inserted into the limiting groove to guide the adapter box to slide.

Furthermore, the edges of two sides of the sliding plate are respectively provided with a first guide convex strip and a second guide convex strip which are used for ensuring the distance between the sliding plate and the first shell, each elastic locking component comprises a mounting cylinder, a spring and a positioning ball which are formed in the adapter box, the mounting cylinder is formed in the adapter box, the first shell is provided with an opening corresponding to the positioning ball, and the diameter of the opening is slightly smaller than that of the positioning ball.

In a second aspect, the invention relates to an automobile seat headrest support, which comprises a headrest support assembly, wherein the headrest support assembly is wrapped in a headrest and used for supporting and adjusting the shape of the headrest, the headrest support assembly is connected with a sliding plate, the sliding plate is slidably assembled with a junction box, a plurality of positioning grooves are formed in one surface of the sliding plate and are arranged along the movement track of the junction box, first sliding parts are respectively arranged on two sides of the sliding plate, second sliding parts matched with the first sliding parts are formed on two sides of the junction box, at least one elastic locking assembly is arranged in the junction box, the elastic locking assembly comprises at least one positioning bead partially extending out of the junction box, position locking in a first direction is realized in the matching of the positioning beads and the positioning grooves, the junction box is connected to a second direction adjustment assembly, the second direction adjustment assembly is linked with a third direction adjustment assembly, the third direction adjustment assembly is slidably mounted on a seat body in a resettable manner, and the seat body is detachably mounted on an automobile seat.

The adapter box comprises a first shell and a second shell, wherein the second sliding piece is formed on two sides of the first shell, a limiting piece is arranged in the middle of the first shell, a limiting groove is formed in the middle of the sliding plate, and the limiting piece is used for being inserted into the limiting groove to guide the adapter box to slide; each elastic locking assembly comprises an installation cylinder, a spring and a positioning ball which are formed in the adapter box, the installation cylinder is formed in the adapter box, an opening is formed in the first shell corresponding to the positioning ball, and the diameter of the opening is slightly smaller than that of the positioning ball.

In one embodiment of the multi-dimensional adjustment, the second direction adjustment assembly includes a connecting support, a pivot post, and a second locking mechanism, the connecting support and the pivot post are rotatably connected together by a bolt, the pivot post is provided with a plurality of third positioning slots, the connecting support is disposed outside the second housing, the second locking mechanism includes a third mounting tube, a third spring, and a third positioning bead extending from the second housing, the third mounting tube penetrates through the second housing, the third spring is disposed in the third mounting tube and presses the third positioning bead, the adaptor box can rotate around the pivot post when the third positioning bead does not fall into the corresponding third positioning slot, and the pitch angle of the headrest support assembly is locked when the third positioning bead falls into the corresponding third positioning slot.

In the multidimensional adjustment embodiment, the third direction adjustment assembly comprises a moving seat, a switch mechanism, a reset mechanism and a third locking mechanism, wherein the moving seat comprises a body, the front part of the body forms the pivot column, two sides of the body are provided with a first rack and a second rack, and the rear part of the body forms an installation opening; the switch mechanism comprises a reset button and a separator, the reset mechanism comprises a first reset spring arranged in the mounting port, one end of the first reset spring is connected with the body, the other end of the first reset spring is connected with the seat body, the third locking mechanism comprises a first pressing block and a second pressing block, the first pressing block is meshed with the first rack, the second pressing block is meshed with the second rack, the first pressing block is pressed from one side by the first pressing spring, the second pressing block is pressed from the opposite side by the second pressing spring, and each pressing block is respectively meshed with the corresponding rack so as to lock the front position and the rear position of the headrest support; when the reset button is pressed during resetting, the separator separates the first pressing block from the second pressing block, so that each pressing block is separated from the corresponding rack, and meanwhile, the moving seat automatically retracts into the seat body under the pulling of the first reset spring.

In order to realize the adjustment of the shape of the pillow, the headrest supporting component comprises a connecting plate, a first wing plate and a second wing plate which are rotatably arranged on two sides of the connecting plate, a gear mechanism is arranged between the first wing plate or the second wing plate and the connecting plate, the gear mechanism comprises a gear disc arranged on the connecting plate, and a gear meshing structure arranged on each wing plate.

The sliding locking mechanism adopts a screw-free sliding and locking design, can quickly and conveniently adjust and lock the upper position and the lower position of the headrest support, is simple and convenient to operate, and can stably support the head in a locking state.

In addition, the sliding locking mechanism of the headrest bracket is provided with the orientation adjusting component in three-dimensional space, and can simulate the three-dimensional head posture of a passenger to carry out adaptive support. Through the adaptive position adjustment of the upper and lower, every single move and front and back three dimension, the change of headrest direction position can be accomplished to simple operations such as only stirring or pressing the button during adjustment, provides comfortable and docile headrest experience for the user.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Wherein:

FIG. 1 is an overall structure view of the headrest support of the automobile seat, after being sleeved with a fabric headrest;

fig. 2 is a perspective view showing a slide lock mechanism of the headrest bracket according to the present invention;

FIG. 3 is a view showing a structure of a folding shift position of both wings of the slide lock mechanism of the headrest bracket according to the present invention;

FIG. 4 is a schematic view of a portion of the structure within the fabric headrest of the sliding locking mechanism of the headrest bracket according to the present invention;

fig. 5 is an enlarged structural view of a slide plate of the slide locking mechanism of the headrest bracket according to the present invention;

fig. 6 is a partially exploded view of a second locking structure of the slide locking mechanism of the headrest bracket of the invention;

fig. 7 is a view showing a structure in which both wings of the slide lock mechanism of the headrest bracket according to the present invention are detached;

fig. 8 is a perspective view of a shift position mechanism of the slide lock mechanism of the headrest bracket according to the present invention;

fig. 9 is a view showing a pitch and back-and-forth adjustment structure of the slide lock mechanism of the headrest bracket according to the present invention;

fig. 10 is a perspective view of a first housing of the slide lock mechanism of the headrest bracket of the invention;

fig. 11 is a view showing the inner structure of a second housing of the slide lock mechanism of the headrest bracket according to the invention;

fig. 12 is a structural view of a moving seat and a third locking mechanism of the slide locking mechanism of the headrest bracket of the invention;

fig. 13 is a view showing the internal structure of the seat body of the slide lock mechanism of the headrest bracket according to the present invention;

fig. 14 is a structural view of another perspective of the slide lock mechanism housing of the headrest bracket of the invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1, a headrest bracket of the present invention is a perspective view of a headrest 1 fitted thereon. The headrest 1 is filled with elastic cotton, the surface of the headrest is coated with fabric or leather, and a reinforcing plate 12 is arranged behind the headrest.

The sliding locking mechanism is an orientation locking mechanism of the headrest support in the vertical direction, and the headrest support further comprises a pitching orientation locking piece mechanism and a front-back orientation locking mechanism.

The sliding locking mechanism comprises a sliding plate fixed to a headrest support and a switching box capable of reciprocating on the sliding plate, wherein a plurality of positioning grooves are formed in one surface of the sliding plate and are arranged along the motion track of the switching box; the transfer box is shifted, and the at least one positioning bead is shifted out from the corresponding positioning groove, so that unlocking can be realized.

The headrest can quickly adjust the position or the angle in three directions under the action of the vertical direction locking mechanism, the pitching direction locking mechanism and the front and back direction locking mechanism.

In general, the headrest bracket includes a headrest support assembly that is encased in a headrest for supporting and adjusting the shape of the headrest. Outside the headrest 1, the headrest support assembly is connected with the sliding locking mechanism, the sliding locking mechanism is connected to a second direction adjusting assembly through an adapter box 5, the second direction adjusting assembly is linked with a third direction adjusting assembly, the third direction adjusting assembly is slidably mounted on a seat body 7 in a resetting manner, and the seat body 7 is detachably mounted on an automobile seat.

The headrest support for the automobile seat is provided with the spatial three-dimensional direction adjusting assembly, can simulate the three-dimensional head posture, adjusts the position of the headrest in the vertical, pitching and front and back dimensions, and provides comfortable and fitting headrest experience for a user.

By adopting the design of the sliding locking mechanism, when the height position is changed, the headrest can be sensed to slide on the sliding plate 51 by only shifting the headrest and the sound of the positioning bead falling into the positioning groove is heard, so that the sliding distance and the sliding state are judged.

Referring to fig. 3, the shape of the headrest for the car seat of the present invention can be adjusted by adjusting the bending angle of the two side wings, such as the first wing 3 and the second wing 4, under the action of the shift mechanism, so as to change the shape of the headrest while providing stable and comfortable support.

The slide lock mechanism of the headrest bracket and the construction and operation principle of the three-dimensional adjustment headrest bracket will be described in detail below.

DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION

Referring to fig. 2 to 4, a specific product structure of the headrest bracket of the present embodiment is shown.

As shown in fig. 2, the headrest bracket of the present embodiment mainly includes a headrest supporting assembly, a sliding locking mechanism, a second direction adjusting assembly, a third direction adjusting assembly, and a seat body 7.

The headrest support assembly is wrapped in the headrest 1 for supporting and adjusting the shape of the headrest 1. The headrest support assembly is coupled to a slide lock mechanism. The sliding locking mechanism is engaged with the second direction adjustment assembly through the adapter box 5. The second direction adjusting component is linked with the third direction adjusting component, and the third direction adjusting component is installed on the seat body 7 in a sliding manner in a resettable manner. The seat body 7 is detachably mounted to the car seat.

The adapter 5 is surrounded by a first housing 522 and a second housing 521. The housing 7 includes a base 711 and an upper cover 710.

The headrest supporting assembly includes a link plate 2 and first and

second wings

3 and 4 rotatably provided at both sides of the link plate 2. The connection plate 2 includes a first support shaft 212 and a second support shaft 213 engaged with the first wing plate 3. The connection plate 2 further comprises a third support shaft cooperating with the second wing 4 and a fourth support shaft. The back of the connection plate 2 is provided with a plurality of studs 29.

The slide lock mechanism includes a slide plate 51 fixed to the connection plate 2 and an adapter box 5 that slides or locks on the slide plate 51. An up-down direction locking mechanism is arranged in the adapter box 5.

The slide plate 51 is provided with four screw holes 518 corresponding to the studs 29, and the slide plate 51 is fixedly mounted to the rear of the connecting plate 2 by screws.

First sliding parts, namely a first slideway 511 and a second slideway 512 in the embodiment, are respectively arranged on two sides of the sliding plate 51. The sliding plate 51 has a limiting groove 513 formed in the middle thereof. The first slide way 511, the second slide way 512 and the limiting groove 513 are parallel to each other. The sliding plate 51 is recessed towards one side of the adapter box 5 to form a plurality of limiting grooves. The plurality of limiting grooves are arranged along the motion track of the adapter box 5.

In the first embodiment, the positioning grooves are arranged in a row on the sliding plate along the motion track of the adapter box, and an elastic locking assembly is arranged in the adapter box 5, and each elastic locking assembly comprises a mounting cylinder, a spring and a positioning ball which are formed in the adapter box. The resilient locking assembly includes a first positioning bead extending partially out of the adapter box.

Referring to fig. 5 and 10, in the second embodiment, the positioning grooves are arranged in two rows. The positioning grooves include a first positioning groove 514 and a second positioning groove 515, the first positioning groove 514 and the second positioning groove 515 are respectively arranged in two rows on the sliding plate 51 along the movement track of the adapter box 5, and a first elastic locking component and a second elastic locking component are correspondingly arranged in the adapter box 5. Each resilient locking assembly includes a mounting barrel formed in the adapter housing, a spring, and a locating bead. The first resilient locking element comprises a first detent bead 53 which extends partially out of the adapter box and engages the first detent, and the second resilient locking element comprises a second detent bead 54 which extends partially out of the adapter box and engages the second detent.

The following structure is described based on the two rows of positioning grooves of the second embodiment.

As shown in fig. 9 and 10, second sliding members engaged with the first sliding members are formed at both sides of the first housing 522. In this embodiment, the second sliding member is a first sliding piece 523 and a second sliding piece 524 disposed on two sides of the first housing 522. The first housing 522 has a limiting piece 525 disposed in the middle thereof for being inserted into the limiting groove to guide the adapter box to slide. The first sliding piece 523 and the second sliding piece 524 are respectively embedded in sliding ways formed at two sides of the sliding plate 51, for example, the first sliding way 511 and the second sliding way 512, and the adaptor box 5 can slide up and down along the corresponding sliding ways. The stopper 525 is inserted into the stopper groove 513 formed in the middle of the sliding plate 51 and slides up and down therein.

Referring to fig. 10, a first mounting cylinder 526 and a second mounting cylinder 527 penetrating the first housing 522 are provided in the first housing 522 of the adapter 5. The first housing 522 has a first opening corresponding to the first positioning bead 53, and a second opening corresponding to the second positioning bead 54, wherein the diameter of the first opening is slightly smaller than the diameter of the first positioning bead 53, and the diameter of the second opening is slightly smaller than the diameter of the second positioning bead 54. The first spring 531 is disposed in the first mounting cylinder 526 to press the first positioning ball 53, the second spring 541 is disposed in the second mounting cylinder 527 to press the second positioning ball 54, the first positioning ball 53 and the second positioning ball 54 can slide on the sliding plate 51 when not falling into the corresponding first positioning slot and the second positioning slot, and the height position of the headrest supporting assembly along the direction of the sliding plate 51 is locked when falling into the corresponding first positioning slot and the second positioning slot. The 541 elastic force of the first spring 531 and the second spring is related to the pushing force of the positioning ball from the positioning groove, so as to ensure that the positioning ball can be pushed out with proper force and the headrest and the bracket can be positioned at the position of the groove.

Referring to fig. 2 and fig. 3, the folding state of the wing plates on both sides of the headrest frame is shown. The headrest shown in fig. 2 has a small curvature and a large deployment area. In the headrest shown in fig. 3, the first wing plate 3 and the second wing plate 4 on both sides of the connecting plate 2 are retracted, so that the headrest is suitable for fixing the head position of a passenger during sleeping and avoiding the passenger from swinging along with the vehicle.

Referring to fig. 7, in order to adjust the shape of the headrest, a shift mechanism is disposed between the first wing plate 3 or the second wing plate 4 and the connecting plate 2, and the shift mechanism includes at least one shift plate disposed on the connecting plate 2 and a shift engaging structure disposed on each wing plate. Referring to fig. 6, a first gear plate 23 is disposed on the top of a first supporting shaft 212 of the connecting plate 2, a second gear plate 24 is disposed below a second supporting shaft 213, a gear engaging structure engaged with the first gear plate 23 is disposed in the lower portion of a gear rotating shaft 32 of the first wing plate 3, and a gear engaging structure engaged with the second gear plate 24 is also disposed in the upper portion of the gear rotating shaft 32 of the first wing plate 3. The gear mechanism of the second wing plate 4 is the same and will not be described in detail. This gear dish and gear interlock structure mutually support for the user is breaking off with the fingers and thumb when moving headrest both sides edge off with the fingers and thumb, sends the sound of switching the gear and provides the feeling that the gear switched.

As shown in fig. 8 and 11, the second direction adjustment assembly is a head rest support pitch angle adjustment mechanism. The second direction adjustment assembly includes a connecting support 58 disposed on the adaptor box 5, a pivot post 73 disposed on the base, and a second locking mechanism. The connecting support 58 and the pivot post 73 are rotatably connected together by a bolt 59, a plurality of third positioning slots 732 are formed in the pivot post 73, and the connecting support 58 is a pair respectively disposed on two sides of the exterior of the second housing 521.

Referring to fig. 10 and 11, the main components of the second locking mechanism are mounted in the adapter box 5, and include a third mounting cylinder 55, a third spring 571, and a third positioning ball 57 extending from the second housing 521. A third opening is formed on the second casing 521 corresponding to the third positioning bead 57. The diameter of the third opening is slightly smaller than the diameter of the third positioning bead 57. The third mounting tube 55 is penetrated through the second housing 521, the third spring 571 is disposed in the third mounting tube 55 to press the third positioning ball 57, the adaptor box 5 and the headrest supporting assembly can rotate around the pivot post 73 when the third positioning ball 57 does not fall into the corresponding third positioning slot 732, and the pitch angle of the headrest supporting assembly is locked when the third positioning ball 57 falls into the corresponding third positioning slot 732.

The third direction adjustment assembly is mainly installed in the base body 7, and the body of the moving base 72 extends out of the base body 7 to serve as a pivot post 73 to be matched with the second locking structure of the second direction adjustment assembly. The third directional adjustment assembly includes a kinematic seat 72, a switch mechanism, a reset mechanism, and a third locking mechanism.

As shown in fig. 12 and 13, the motion base 72 includes a body, and the front portion of the body forms the pivot post 73. The body is provided with a first rack 723 and a second rack (not shown) at both sides and a mounting port 721 at the rear. The switch mechanism includes a reset button 74 and a separator 743. The return mechanism includes a first return spring 75 installed in the installation opening 721, and one end of the first return spring 75 is connected to the main body and the other end is connected to the seat body 7.

Referring to fig. 12 to 14, the third locking mechanism includes a first pressing block 745 and a second pressing block disposed on the movable base 72. The first pressing block 745 is engaged with the first rack 723. The second pressing block is meshed with the second rack. The first pressure piece is pressed from one side by a first pressure spring 746 and the second pressure piece is pressed from the opposite side by a second pressure spring. Each pressing block is respectively meshed with the corresponding rack so as to lock the front and back positions of the headrest support.

The third direction adjusting component for adjusting the front and rear positions can realize automatic reset by pressing the reset button. The headrest and the headrest bracket as a whole are retracted to the initial position along with the moving seat 72. When the reset button 74 is pressed during resetting, the wedge structure at the end of the separator 743 separates the first pressing block 745 and the second pressing block, so that each pressing block is disengaged from the corresponding rack, and simultaneously, the motion base automatically retracts into the base body 7 under the pulling of the first reset spring 75.

The headrest support of the automobile seat can be quickly and tightly pressed and installed on two headrest connecting rods at the top of the automobile seat. The seat body 7 is provided with a first clamping mechanism and a second clamping mechanism in a sliding manner. The first locking mechanism includes a first buckle 91 and a second return spring 915 which can slide and extend out of the base 7. First bayonet lock 912 is provided in first clasp body 91. One end of the second return spring 915 is connected to the first buckle 91 through a connection post 914, and the other end is connected to the fixing post 712 of the seat body 7. The second locking mechanism includes a second locking body 92 and a third return spring 925. The second locking body 92 is provided with a second locking opening 922. Similarly, one end of the third return spring 925 is connected to the second buckle body 92, and the other end is connected to the fixing post of the seat body 7.

According to the automobile seat headrest support, the headrest is connected with the three-dimensional orientation adjusting assembly, so that the headrest can simulate the three-dimensional head posture of a passenger, the position of the headrest in the direction can be adjusted through the vertical dimension, the pitching dimension and the front-back dimension, and comfortable head support experience is provided for the passenger.

The vertical direction locking mechanism of the automobile seat headrest adopts a sliding locking design, when the height position is changed, the headrest can be sensed by only shifting the headrest on the sliding plate 51 and the sound of the positioning bead falling into the positioning groove is heard, the sliding distance and the state can be immediately judged, compared with the mode that a plurality of screws are dismounted by using a screwdriver and then are installed laboriously, the vertical position is adjusted simply, quickly and conveniently.

The shape of the headrest of the automobile seat can be adjusted by bending under the action of the gear mechanism, so that the shape of the headrest is changed, and meanwhile, stable and comfortable support is provided.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the invention is not limited by the scope of the appended claims.

Claims

1. A sliding locking mechanism of a headrest support is characterized in that the sliding locking mechanism is used for adjusting and locking the upper position and the lower position of the headrest support and is linked with a second direction adjusting component used for adjusting and locking the pitching angle of the headrest support, the second direction adjusting component is linked with a third direction adjusting component used for adjusting and locking the front position and the rear position of the headrest support, the sliding locking mechanism comprises a sliding plate used for being fixed to the headrest support and a switching box capable of moving back and forth on the sliding plate, the second direction adjusting component comprises a connecting support arranged on the switching box, a pivoting column arranged on the third direction adjusting component and a second locking mechanism, the connecting support and the pivoting column are rotatably connected together through bolts, a plurality of third positioning grooves used for being matched with the second locking mechanism are formed in the pivoting column, a plurality of positioning grooves are formed in one surface of the sliding plate, the positioning grooves are arranged along the movement track of the switching box, first sliding pieces are respectively arranged at two sides of the sliding plate, second sliding pieces matched with the first sliding pieces are formed at two sides of the switching box, at least one elastic locking component is arranged in the switching box, and at least one sliding ball extends out of the switching box along the shifting direction of the switching box, and stays in the positioning grooves in the sliding direction of the switching box, and at least one switching box along the sliding ball, and at least one switching position of the switching box; and the transfer box is shifted, and the at least one positioning bead is shifted out from the corresponding positioning groove, so that unlocking can be realized.

2. The headrest bracket sliding locking mechanism of claim 1, wherein the plurality of positioning grooves are arranged in a row on the sliding plate along a movement path of the adapter box, and an elastic locking member is disposed in the adapter box and includes a first positioning bead partially protruding from the adapter box.

3. The headrest bracket sliding locking mechanism of claim 1, wherein the plurality of positioning slots includes a first positioning slot and a second positioning slot, the first and second positioning slots being arranged in two rows on the sliding plate along a movement path of the adapter box, respectively, a first resilient locking member and a second resilient locking member being disposed within the adapter box, the first resilient locking member including a first positioning bead partially extending out of the adapter box and cooperating with the first positioning slot, the second resilient locking member including a second positioning bead partially extending out of the adapter box and cooperating with the second positioning slot.

4. The headrest bracket sliding lock mechanism according to any one of claims 1 to 3, wherein the adapter box includes a first housing and a second housing, the second sliding member is formed on both sides of the first housing, and a stopper piece is provided in a middle portion of the first housing, and a stopper groove is formed in a middle portion of the sliding plate, and the stopper piece is adapted to be inserted into the stopper groove to guide the sliding movement of the adapter box.

5. The headrest bracket sliding lock mechanism according to claim 4, wherein the sliding plate is provided at both side edges thereof with first and second guide ribs for securing a space between the sliding plate and the first housing, respectively, each of the elastic lock members includes a mounting cylinder formed in an adapter box, a spring and a positioning ball, the mounting cylinder being formed in the adapter box, the first housing being provided with an opening corresponding to the positioning ball, the opening having a diameter slightly smaller than a diameter of the positioning ball.

6. The utility model provides an automobile seat headrest support, includes headrest supporting component, headrest supporting component cladding is used for supporting and adjusting among the headrest the shape of headrest, its characterized in that, headrest supporting component connects the sliding plate, sliding plate and a switching box sliding assembly, a sliding plate forms a plurality of constant head tanks on the surface, a plurality of constant head tanks along the movement track of switching box is arranged, the sliding plate both sides set up first slider respectively, switching box both sides form with first slider complex second slider, set up an at least elasticity locking component in the switching box, elasticity locking component includes that the part stretches out at least one location pearl of switching box, the locking of position about realizing in location pearl and the constant head tank cooperation, the switching box is connected to the second direction adjustment subassembly that is used for pitch angle adjustment and locking, second direction adjustment subassembly linkage is used for headrest support front and back position adjustment and the third direction adjustment subassembly of locking, second direction adjustment subassembly is including setting up connecting support on the switching box, setting up in the pin joint post and the second locking mechanism of third direction adjustment subassembly, the pin joint post is connected together through the pin joint is used for the third direction adjustment subassembly to the pedestal of the removable mounting of third direction adjustment subassembly, and the pedestal can be used for resetting to the third direction adjustment subassembly on the pedestal.

7. The headrest bracket for the seat of the automobile according to claim 6, wherein the adapter box comprises a first shell and a second shell, the second sliding member is formed on two sides of the first shell, a limiting piece is arranged in the middle of the first shell, a limiting groove is formed in the middle of the sliding plate, and the limiting piece is used for being inserted into the limiting groove to guide the adapter box to slide; each elastic locking assembly comprises an installation cylinder, a spring and a positioning ball which are formed in the adapter box, the installation cylinder is formed in the adapter box, an opening is formed in the first shell corresponding to the positioning ball, and the diameter of the opening is slightly smaller than that of the positioning ball.

8. The headrest bracket for a seat of a vehicle as claimed in claim 7, wherein the second locking mechanism includes a third mounting tube, a third spring and a third positioning ball extending from the second housing, the third mounting tube extends through the second housing, the third spring is disposed in the third mounting tube and presses the third positioning ball, the adapter box is rotatable about the pivot post when the third positioning ball does not fall into the corresponding third positioning slot, and the pitch angle of the headrest support assembly is locked when the third positioning ball falls into the corresponding third positioning slot.

9. The headrest bracket for the seat of the automobile according to claim 8, wherein the third direction adjustment assembly comprises a moving seat, a switch mechanism, a reset mechanism and a third locking mechanism, the moving seat comprises a body, the front part of the body forms the pivot column, two sides of the body are provided with a first rack and a second rack, and the rear part of the body forms a mounting opening; the switch mechanism comprises a reset button and a separator, the reset mechanism comprises a first reset spring installed in the installation opening, one end of the first reset spring is connected with the body, the other end of the first reset spring is connected with the seat body, the third locking mechanism comprises a first pressing block and a second pressing block, the first pressing block is meshed with the first rack, the second pressing block is meshed with the second rack, the first pressing block is pressed from one side by the first pressing spring, the second pressing block is pressed from the opposite side by the second pressing spring, and each pressing block is respectively meshed with the corresponding rack so as to lock the front and back positions of the headrest support; when the reset button is pressed during reset, the separator separates the first pressing block from the second pressing block, each pressing block is separated from the corresponding rack, and meanwhile, the moving seat automatically retracts into the seat body under the pulling of the first reset spring.

10. The headrest bracket for vehicle seats according to any of claims 6 to 9, wherein the headrest support assembly includes a connecting plate, and a first wing and a second wing rotatably disposed on either side of the connecting plate, and a shift mechanism is disposed between the first wing or the second wing and the connecting plate, the shift mechanism including a shift plate disposed on the connecting plate and a shift engaging structure disposed on each wing.