CN111483374A

CN111483374A - Automobile headrest and processing technology thereof

Info

Publication number: CN111483374A
Application number: CN202010335932.7A
Authority: CN
Inventors: 郑伟; 杨涛; 刘启超; 朱建国
Original assignee: Shanghai Howin Auto Parts Co ltd
Current assignee: Shanghai Howin Auto Parts Co ltd
Priority date: 2020-04-25
Filing date: 2020-04-25
Publication date: 2020-08-04

Abstract

The invention relates to an automobile headrest and a processing technology thereof, relating to the technical field of automobile protective articles and comprising two headrest rods and a headrest body, wherein the headrest body comprises a headrest framework, a headrest sleeve is coated outside the headrest framework, the headrest framework is sleeved and matched with the two headrest rods, and the headrest framework and the headrest rods are connected with a headrest lock; the headrest lock comprises a push plate and a clamping piece, wherein the push plate and the clamping piece are arranged on a headrest framework, the push plate is arranged on the headrest framework in a sliding mode and extends out of the headrest body, a clamping groove is formed in a headrest rod, and the clamping piece is matched with the clamping groove in a clamping mode to fix the headrest framework. The joint piece realizes joint, the separation action with the headrest pole under push pedal and self elastic force to with the effort that originally acts on one side headrest pole decompose into the symmetry formula effort that acts on two headrest poles, make the atress of two headrest poles of automotive headrest more even, stable, and then reach extension automotive headrest life and improve the purpose of automotive headrest safety in utilization.

Description

Automobile headrest and processing technology thereof

Technical Field

The invention relates to the technical field of automobile protective articles, in particular to an automobile headrest and a processing technology thereof.

Background

An automobile headrest is a driving comfort configuration article and a safety protection article. When the vehicle is in rear-end collision or rapid acceleration or rapid deceleration, the human body falls backwards due to inertia, and the pressure of the acceleration or deceleration of the vehicle is concentrated on the fragile neck and head of the human body; the headrest plays a role in buffering at the moment so as to protect the head and the neck of the human body.

The prior patent of the invention with the publication number of CN106114315B discloses an adjustable car seat headrest, which comprises a headrest rod, and an adjustable headrest and a non-adjustable headrest mounted on the headrest rod. The headrest rod comprises a first fixed end used for installing the adjustable headrest and a second fixed end used for fixing the automobile seat headrest on the automobile seat, a first adjusting clamping position and a second adjusting clamping position are respectively arranged on the first fixed end and the second fixed end, the first adjusting clamping position is used for realizing height adjustment through cooperation with the adjustable headrest and the unlocking button, and the second adjusting clamping position is used for realizing integral height adjustment of the automobile seat headrest through cooperation with the automobile seat. The adjustable headrest comprises a mounting plate, a headrest guide sleeve used for being inserted into the first fixed end is arranged on the mounting plate, a mounting groove is formed in the headrest guide sleeve, and an unlocking button is mounted in the mounting groove. The unlocking button comprises a button, a positioning block and a spring, wherein the positioning block and the spring are connected with the button; a user presses the button, the button moves to drive the positioning block to move and extrude the spring, and the positioning block is separated from the first adjusting clamping position to achieve the purpose of unlocking; after the adjustment is completed, the positioning block returns under the action of the spring and is clamped in the other first adjusting clamping position, the adjustable headrest is clamped and fixed with the headrest rod again, and then the height adjustment operation of the adjustable headrest is completed.

In the prior art, only one of the two headrest guide sleeves is provided with the mounting groove, namely, the headrest rod on one side is clamped and fixed with the positioning block, and the stress of the positioning block and the headrest rod is uneven. When the headrest bears great impact force or after long-time use, the locating piece appears becoming flexible or dislocation easily with the joint cooperation of first regulation screens, leads to appearing the unable fixed phenomenon of headrest, and prior art exists and can improve the part.

Disclosure of Invention

Aiming at the defects in the prior art, one of the purposes of the invention is to provide an automobile headrest, the purpose of adjusting the height of the automobile headrest is realized by matching a headrest lock, a headrest framework and headrest rods, and the uniform and stable stress of the two headrest rods is realized on the basis, so that the purposes of prolonging the service life of the automobile headrest and improving the use safety of the automobile headrest are further achieved.

The above object of the present invention is achieved by the following technical solutions: an automobile headrest comprises two headrest rods and a headrest body arranged on the headrest rods, wherein the headrest body comprises a headrest framework connected with the headrest rods, a headrest sleeve covers the outside of the headrest framework, the headrest framework is matched with the two headrest rods in a sliding and sleeving manner, and the headrest framework and the headrest rods are connected with a headrest lock; the headrest lock comprises a push plate and a clamping piece, the push plate and the clamping piece are arranged on a headrest framework in a sliding mode, clamping grooves are formed in the headrest rods along the height direction of the headrest rods, the clamping piece and the clamping grooves are clamped and matched to fix the headrest framework, and the push plate is in sliding motion to abut against the clamping piece and drive the clamping piece to be separated from the clamping grooves in the two headrest rods; the push pedal is connected with the elastic component that is used for driving the push pedal to reset with the headrest framework, works as when the push pedal resets under the elastic component effect, the joint spare resets under self elastic force effect and is fixed with the draw-in groove joint on the two head rest posts.

By adopting the technical scheme, under the condition that a user does not press the headrest lock, the push plate is reset to the initial non-pressed state under the action of the elastic piece, and meanwhile, the clamping piece is clamped and fixed with the corresponding clamping grooves on the two headrest rods under the action of the elastic force of the clamping piece; and under the condition that the user pressed the headrest lock, the elastic force of elastic component was overcome to the push pedal to the butt drives the joint spare and overcomes the elastic force of self, realizes with the separation action of the draw-in groove on the two headrest poles, and then realizes adjusting the purpose of car headrest height. Because, the joint piece realizes joint, the separation action with two headrest poles under push pedal and self elastic force to decompose the effort that originally was used for one side headrest pole into the bilateral symmetry formula effort that acts on two headrest poles, make the atress of two headrest poles of automotive headrest more even, stable, and then reach extension automotive headrest life and improve automotive headrest safety's purpose.

The present invention in a preferred example may be further configured to: the clamping piece comprises an elastic jacking piece arranged on the headrest framework and a clamping rod matched with the elastic jacking piece, and the clamping rod is arranged on the headrest framework in a sliding manner and is in butt fit with the push plate; the clamping and connecting rod is clamped and fixed with the clamping grooves on the two pillow rods under the jacking action of the elastic jacking piece, and the clamping and connecting rod is separated from the clamping grooves on the two pillow rods under the pushing action of the pushing plate.

Through adopting above-mentioned technical scheme, elasticity roof pressure spare constitutes joint spare with the cooperation of joint pole. When the push plate moves and abuts against the clamping rod to move, the clamping rod overcomes the elastic acting force of the elastic jacking piece and slides and moves towards the direction far away from the headrest rods until the clamping rod is separated from the clamping grooves on the two headrest rods; after the adjustment operation is finished, the push plate does not apply an acting force on the clamping rod any more, and the clamping rod slides reversely under the action of the elastic jacking piece until the clamping rod is in clamping fit with the corresponding clamping groove. Adopt the joint pole combination and the separation mode of sliding, have better smooth and easy nature and the stability in use.

The present invention in a preferred example may be further configured to: the clamping and connecting rod is elastically fixed on the headrest framework and is in butt fit with the push plate, and the clamping and connecting rod is elastically bent under the jacking action of the elastic jacking and pressing piece and is clamped and fixed with the clamping grooves in the two headrest rods.

Through adopting above-mentioned technical scheme, when the push pedal motion and butt joint pole moved, the elastic force of elasticity roof pressure piece was overcome to the joint pole, all is towards the direction of keeping away from the headrest poles and is elastically deformed the bending for the part of draw-in groove on the headrest poles on the joint piece, until with the draw-in groove phase separation on the headrest poles of two heads. After the adjustment operation is finished, the push plate does not apply an acting force on the clamping rod any more, and the clamping rod reversely rotates under the action of the self-deformation elastic force until the clamping rod is clamped and matched with the corresponding clamping groove; in the process, the elastic jacking plate plays a role in improving the reset response speed of the clamping rod and the reset clamping stability. The bending deformation type clamping rod combining and separating mode is adopted, and better clamping stability is achieved.

The present invention in a preferred example may be further configured to: the headrest framework is provided with a jacking groove used for installing the elastic jacking part, and the jacking groove is provided with a limiting part used for limiting the elastic jacking part to be separated.

Through adopting above-mentioned technical scheme, the locating part plays the effect that restriction elasticity roof pressure piece breaks away from the roof pressure groove, is favorable to improving the security and the stability that the headrest lock used.

The present invention in a preferred example may be further configured to: the clamping rod comprises a main rod, two bending sections and two clamping sections, the two bending sections and the two clamping sections are formed by extending the main rod, the clamping sections are in clamping fit with the clamping grooves, and the bending sections are respectively arranged into an inclined straight line structure and a triangular bending structure; an elastic shifting sheet is arranged on the push plate corresponding to the inclined linear structure, and the elastic shifting sheet is in elastic butt fit with the inclined linear structure.

By adopting the technical scheme, in order to realize the purpose that the two clamping sections of the clamping rod are simultaneously clamped and fixed with and separated from the headrest rod, the bending section with two structures of inclined straight line and triangular bending needs to be matched with the push plate to act. The elastic shifting piece can realize elastic combination or separation action of the clamping section with the inclined straight line structure and the clamping groove, has good buffering characteristic, and is favorable for improving the smoothness and the stability of locking and unlocking operations of the automobile headrest.

The present invention in a preferred example may be further configured to: a triangular protruding structure is formed on the push plate corresponding to the triangular bending structure, and the triangular protruding structure is in elastic butt fit with the triangular bending structure.

Through adopting above-mentioned technical scheme, triangle-shaped protruding structure uses with the cooperation of the bending segment that has triangle bending structure, can realize elastic separation or combination action between them, has better buffer characteristic, is favorable to further improving the smooth and easy nature and the stability of car headrest locking and lock connection operation.

The present invention in a preferred example may be further configured to: a button is arranged on the headrest framework and corresponds to the end part of the push plate; the button is including being fixed in the button cover on the headrest skeleton and sliding the button that sets up in the button cover, set up on the button and be formed with the recess, just correspond the draw-in groove extension in the push pedal and be formed with elastic bulge, elastic bulge and recess elasticity joint cooperation.

By adopting the technical scheme, a user can drive the push plate to move through the button, so that the operation is better in operability and practicability; and the elastic bulge is matched with the groove to realize the purpose of limiting the reset of the push plate, so that the automobile headrest is always in an unlocked state, and the purpose of facilitating a user to finish the adjustment operation is further achieved.

The present invention in a preferred example may be further configured to: the headrest framework is matched with a connecting frame, the connecting frame is fixedly connected to the top ends of the two headrest rods, and the connecting frame and the top ends of the two headrest rods are connected with clamp springs.

By adopting the technical scheme, the connecting frame is used for connecting and fixing the top ends of the two headrest rod pieces so as to improve the overall structural strength and the use stability of the headrest framework; and the installation fixing structure clamped by the clamp springs is adopted, so that the installation convenience and the practicability are better.

Aiming at the defects in the prior art, the invention also aims to provide the automobile headrest processing technology, and the purpose of improving the production and processing quality of the automobile headrest is achieved by combining the early-stage raw material inspection and the later-stage finished product inspection.

The above object of the present invention is achieved by the following technical solutions: a processing technology of an automobile headrest comprises the following steps: s1, inspecting the face sleeve material, the foam material and the headrest framework, warehousing and storing qualified products, and returning unqualified products; s2, transferring the raw materials to a production line, loading the headrest framework into headrest foam on the production line, filling a foam buffer pillow between the headrest framework and the headrest foam, integrally loading the headrest framework, the foam buffer pillow and the headrest foam into a surface sleeve, filling a foam buffer cushion between the headrest surface sleeve and the headrest foam, performing vacuum-pumping treatment, fastening J-shaped strips on the surface sleeve, and fastening a button on the headrest framework; s3, shaping and backstitching the headrest, and ironing the coated headrest; s4, checking the appearance flatness and the functional integrity of the headrest; and S5, packaging and warehousing or delivering the finished product out of a warehouse.

By adopting the technical scheme, the integral combination of the headrest framework, the headrest foaming body and the face sleeve is realized by utilizing the vacuumizing technology, so that the integral appearance ornamental performance of the automobile headrest is favorably improved, and the integral structure compactness of the automobile headrest is favorably improved; and the quality of the production and processing operation of the automobile headrest can be effectively improved by the automobile headrest inspection mode combining the early-stage raw material inspection and the later-stage finished product inspection.

The present invention in a preferred example may be further configured to: in step S1, detecting the foaming hardness of the headrest foam, and checking the insertion/extraction force of the headrest framework; in step S4, the flame retardancy of the headrest, the insertion and extraction force of the headrest, and the button unlocking force of the headrest are detected.

By adopting the technical scheme, in the early feeding link and the later finished product link, the flame retardance, the hardness, the plugging force and the button unlocking force of different fed materials are detected so as to achieve the purpose of comprehensively improving the production and processing operation quality of the headrest.

In summary, the invention includes at least one of the following beneficial technical effects:

1. the push plate is matched with the clamping piece to achieve the purpose of adjusting the height of the automobile headrest, the clamping piece achieves clamping and separating actions with the two headrest rods under the action of the push plate and the elastic force of the clamping piece, and the acting force acting on the headrest rod on one side is decomposed into bilateral symmetrical acting forces acting on the two headrest rods, so that the two headrest rods of the automobile headrest are stressed more uniformly and stably, and the purposes of prolonging the service life of the automobile headrest and improving the use safety of the automobile headrest are achieved;

2. the integral combination of the headrest framework, the headrest foaming body and the face sleeve is realized by utilizing a vacuumizing technology, so that the integral appearance ornamental performance of the automobile headrest is improved, and the integral structure compactness of the automobile headrest is improved; the quality of the production and processing operation of the automobile headrest can be effectively improved by the automobile headrest inspection mode combining the early raw material inspection and the later finished product inspection;

3. the joint spare of two kinds of different cooperation structures of design combines or separates at drive joint pole and draw-in groove joint, can select the drive structure of gliding or the drive structure of selecting the crooked formula of elastic deformation according to the user demand of difference, has better use suitability and practicality.

Drawings

FIG. 1 is a schematic view of the general structure of an automotive headrest;

FIG. 2 is a schematic view of an installation structure for showing a foaming cushion and a receiving groove;

FIG. 3 is an exploded view of the mounting structure for the foaming cushion and the mounting groove;

FIG. 4 is an exploded view of a grid-like structure used primarily to show the foamed cushion pillows;

fig. 5 is a schematic view mainly illustrating the general structure of the headrest lock;

FIG. 6 is an exploded view of the mounting structure of the link bracket and headrest rods;

FIG. 7 is a schematic view of a driving structure of the engaging member and the pushing plate according to the first embodiment;

FIG. 8 is a schematic structural view of the carrier plate;

FIG. 9 is a schematic view of the construction of a push plate;

FIG. 10 is a bottom view of the skeletal shell primarily used to show the spacing protrusions;

FIG. 11 is a schematic view of a matching structure of the frame housing and the carrier plate for mainly showing the opening structure;

FIG. 12 is a schematic diagram of an exploded structure of the button;

FIG. 13 is a schematic view of a driving structure of the pusher and the clip according to the second embodiment;

fig. 14 is a block diagram of the process flow of the headrest manufacturing in the third embodiment.

In the figure, 1, a headrest body; 11. a headrest cover; 12. foaming the headrest; 121. accommodating grooves; 13. a headrest face sleeve; 14. a foamed cushion pad; 15. a foaming cushion pillow; 151. a grid-like structure; 2. a headrest rod; 21. a card slot; 22. a second connecting groove; 3. a headrest framework; 31. embedding a groove; 32. a skeletal shell; 33. a carrier plate; 331. a limiting plate; 332. a limiting block; 333. jacking the groove; 334. a guide plate; 335. hanging a column; 336. a limiting member; 34. a guide sleeve; 35. a limiting protrusion; 36. a connecting frame; 361. a first connecting groove; 362. a clamp spring; 4. a headrest lock; 5. a clamping piece; 51. a clamping and connecting rod; 511. a main rod; 512. bending the section; 513. a clamping section; 51-A, a triangular bending structure; 51-B, inclined straight line configuration; 52. an elastic jacking member; 521. a main board; 522. a butt joint plate; 523. a connecting plate; 6. pushing the plate; 61. a guide groove; 62. hooking the column; 63. a triangular protrusion structure; 64. an elastic shifting piece; 65. an elastic bulge; 7. an elastic member; 8. an open cell structure; 9. a button; 91. a button sleeve; 911. a sliding groove; 92. pressing a key; 921. a sliding block; 922. and (4) a groove.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The first embodiment is as follows:

as shown in fig. 1, an automotive headrest comprises a headrest body 1 and two headrest rods 2 mounted on the headrest body 1, wherein the two headrest rods 2 are symmetrically arranged about a central axis of the headrest body 1 and are used in cooperation with an automotive seat. Referring to fig. 1 and 3, the headrest body 1 includes an inner headrest framework 3, the headrest framework 3 is slidably sleeved with the two headrest rods 2, and a headrest lock 4 for locking the headrest rods 2 is disposed on the headrest framework 3. The user controls the joint combination action or the separation action of the headrest rod 2 and the headrest framework 3 through the headrest lock 4 at the same time, so that the aim of manually adjusting the height of the automobile headrest is fulfilled.

As shown in fig. 1 and 2, the headrest body 1 includes a headrest cover 11 covering the headrest framework 3, the headrest cover 11 includes a headrest foam 12 directly covering the headrest framework 3, the headrest foam 12 is made of a foam material, the headrest foam 12 is covered with a headrest cover 13, and the headrest cover 13 is generally sewn from a leather material. As shown in fig. 2, an accommodating groove 121 is formed in a headrest surface (the headrest surface refers to a surface facing the head of a driver) of the headrest foam 12, and a foam cushion 14 is embedded in the accommodating groove 121, and as shown in fig. 2 and 3, an installation position of the foam cushion 14 corresponds to the headrest surface of the headrest framework 3 in the headrest foam 12 and is clamped between the headrest surface cover 13 and the headrest foam 12, and then the positioning and installation are realized by matching gaps around the foam cushion 14 with protrusions on the accommodating groove 121. The foamed cushion pad 14 may play a role of cushioning a driver or a passenger, and may simultaneously improve the riding comfort.

As shown in fig. 2 and 3, a foaming cushion pillow 15 is interposed between the headrest foam 12 and the headrest surface of the headrest framework 3, and the foaming cushion pillow 15 is directly abutted against the headrest surface of the headrest framework 3; as shown in fig. 3, an embedding groove 31 is formed on the headrest surface of the headrest framework 3, the foaming cushion 15 is embedded and clamped in the embedding groove 31, and a part of the foaming cushion 15 is embedded and clamped in the embedding groove 31, and the other part is embedded and coated in the foaming headrest. As shown in fig. 4, a latticed structure 151 is formed on the side of the foam cushion pillow 15 facing the headrest frame 3, and as shown in fig. 1 and 2, the shape of the side of the foam cushion pillow 15 (see fig. 3) away from the headrest frame 3 is matched with the headrest surface shape of the headrest cover 13 and the headrest foam 12; when the automobile decelerates or collides, the foaming cushion 14 plays a first role in buffering and protecting, the headrest foaming 12 plays a second role in buffering and protecting, and the headrest foaming 12 and the foaming cushion pillow 15 are matched to play a third role in buffering and protecting, so as to further enhance the buffering effect of the automobile headrest and protect the head safety of the driver or the passenger.

As shown in fig. 3 and 4, the headrest framework 3 includes a framework casing 32 made of plastic material, the framework casing 32 is in direct contact with the headrest foam 12 and the foam cushion pillow 15, and as shown in fig. 4 and 5, a bearing plate 33 for bearing the headrest lock 4 is further installed and fixed in the framework casing 32, and the two headrest rods 2 are slidably fitted with the bearing plate 33 through guide sleeves 34.

As shown in fig. 5, the headrest lock 4 includes a clamping member 5 for clamping and fixing with the two headrest rods 2, a push plate 6 for sliding along the plane of the bearing plate 33 and driving the clamping member 5 to separate from the two headrest rods 2, and an elastic member 7 for driving the push plate 6 to move in a resetting manner. As shown in fig. 5 and 6, a plurality of engaging grooves 21 are uniformly formed on the two headrest rods 2 along the extending direction of the respective rods, the number of the engaging grooves 21 is specifically determined by the adjustable stages of the headrest, and the engaging grooves 21 on the two headrest rods 2 are symmetrically arranged. Referring to fig. 5 and 7, the clamping member 5 includes a clamping rod 51 that slides along the plane of the bearing plate 33, and an elastic pressing member 52 for driving the clamping rod 51 and the clamping grooves 21 on the two pillow bars 2 to be clamped and fixed at the same time, it should be noted that the pushing plate 6 and the clamping rod 51 are arranged in a staggered sliding manner, and the sliding direction of the pushing plate 6 is perpendicular to the sliding direction of the clamping rod 51. Referring to fig. 6 and 7, when the headrest of the vehicle is in the locked state, the latch rod 51 is abutted against the headrest rods 2 under the action of the elastic abutting member 52, and two ends of the latch rod 51 are respectively embedded and latched in the corresponding slots 21, so as to lock the headrest rods 2 and the headrest body 1. When the user need adjust the car headrest, drive push pedal 6 glide movement, butt drive joint pole 51 glide movement and with draw-in groove 21 phase separation in the time of push pedal 6 motion, it needs to be noted that push pedal 6 and elasticity roof pressure piece 52 butt respectively in the both sides of joint pole 51 bottom, then adjust the operation, no longer exert effort on push pedal 6, then push pedal 6 is reverse glide movement to initial position department under the pulling force effect that elasticity reset the piece, joint 5 is reverse glide movement under the effect of elasticity roof pressure piece 52 and realizes the joint with draw-in groove 21 after adjusting fixed, and then reach the purpose of adjusting car headrest position height.

As shown in fig. 6, in order to improve the overall structural strength and the use stability of the car headrest, the two headrest rods 2 penetrate through the two upper end portions extending into the headrest framework 3 and are provided with the connecting frame 36, the two end portions of the connecting frame 36 are both provided with the first connecting groove 361, the positions of the two headrest rods 2 corresponding to the connecting grooves are provided with the second connecting groove 22, and the first connecting groove 361 and the second connecting groove 22 are elastically clamped and provided with the snap spring 362, so that the purpose that the connecting framework shell 32, the two headrest rods 2, the bearing plate 33 and the connecting frame 36 form an overall structure is achieved.

As shown in fig. 8, a limiting plate 331 and a limiting block 332 are integrally formed on the bearing plate 33, the limiting plate 331 is located at a side position of the bearing plate 33, and the limiting block 332 is located at a position on the bearing plate 33 close to the limiting plate 331; the limit plate 331 and the limit block 332 are formed with a pressing groove 333 in a matching manner, as shown in fig. 5 and 8, the elastic pressing member 52 is inserted into the pressing groove 333, the limit block 332 is formed with a limit member 336 for limiting the elastic pressing member 52 to be separated from the pressing groove 333, and the limit member 336 is a block-shaped protrusion structure formed at the upper end of the limit block 332. Referring to fig. 7 and 8, the elastic pressing member 52 is a plate structure with elastic deformation characteristics, and includes a main plate 521 inserted into the pressing groove 333 and engaged with the limiting member 336 to realize clamping and fixing, the main plate 521 is a bilateral symmetry structure, two ends of the main plate 521 extend to form abutting plates 522 engaged with two ends of the clamping rod 51, and the main plate 521 and the corresponding abutting plates 522 are formed with connecting plates 523. The abutting plate 522 is parallel to the main plate 521, and the connecting plate 523, the main plate 521 and the abutting plate 522 form an inclined angle structure, so that the elastic abutting member 52 drives the clamping rod 51 to slide under the action of its own deformation force.

As shown in fig. 8, the bearing plate 33 is integrally formed with a guide plate 334 along the length direction thereof, the guide plate 334 is perpendicular to the bearing surface of the bearing plate 33 and is located at the other side of the bearing plate 33 away from the position of the position-limiting plate 331, and as shown in fig. 9, a guide groove 61 is formed on the push plate 6 corresponding to the position of the guide plate 334; the guide plate 334 vertically penetrates through the guide groove 61 and is in sliding fit with the guide groove 61, so that the purpose of limiting the offset movement of the push plate 6 is achieved. As shown in fig. 5, the inner wall of the headrest framework 3 is integrally formed with a limiting protrusion 35, and the limiting protrusion 35 abuts against the upper surface of the push plate 6 to realize sliding fit, thereby achieving the purpose of limiting the occurrence of the bouncing phenomenon of the push plate 6.

Referring to fig. 8 and 9, a hanging column 335 is vertically formed on the supporting plate 33, a hook column 62 is vertically formed on the pushing plate 6, two ends of the elastic member 7 (shown in fig. 5) can be respectively hung on the hanging column 335 and the hook column 62, and a spring can be used as the elastic member 7 (shown in fig. 5) to achieve the purpose of driving the pushing plate 6 to reset.

As shown in fig. 7, the latch lever 51 extends and bends along the length direction of the carrier plate 33. The clamping rod 51 comprises a main rod 511, and a bending section 512 and a clamping section 513 which are formed by bending and extending two ends of the main rod 511, wherein the main rod 511 is formed by linearly extending the main rod 511 along the length direction of the bearing plate 33, the two ends of the main rod 511 are respectively formed by bending and extending the bending section 512 and the clamping section 513 in sequence, the bending section 512 is used for being abutted and matched with the push plate 6 to realize linkage, and as shown in fig. 6 and 7, the clamping section 513 is used for being matched with the clamping groove 21 to realize clamping and fixing.

As shown in fig. 7, the bending section 512 includes an inclined straight line structure 51-B on one side and a triangular bending structure 51-a on the other side, an elastic shifting piece 64 and a triangular protrusion structure 63 are respectively formed on the push plate 6 at positions corresponding to the inclined straight line structure 51-B and the triangular bending structure 51-a, the elastic shifting piece 64 is in elastic abutting fit with the inclined straight line structure 51-B, and the triangular protrusion structure 63 is in elastic abutting fit with the triangular bending structure 51-a.

As shown in fig. 10 and 11, in actual assembly, the bottom of the frame housing 32 is provided with an opening, and the bearing plate 33 is matched with the bottom opening of the frame housing 32 through the front and rear sides of the bearing plate to realize clamping and fixing, so as to achieve the purpose of closing the bottom opening of the frame housing 32, and to enable the frame housing 32 and the bearing plate 33 to be assembled and matched to form an integrated structure, thereby achieving the purpose of adjusting the height of the headrest of the automobile. As shown in fig. 11 and 12, either end of the push plate 6 is extended and formed and is matched with the framework shell 32 to form an open pore structure 8, and a button 9 used for being matched with the push plate 6 is fixedly mounted on the open pore structure 8. Referring to fig. 11 and 12, the button 9 includes a sleeve 91 coaxially disposed and snap-fitted into the opening structure 8, and the sleeve 91 is resiliently snap-fitted to an end of the push plate 6 (see fig. 9) through an outer side wall. The button sleeve 91 is internally provided with a button 92 along the axial direction in a sliding manner, the button 92 is provided with a sliding block 921 along the axial direction in an extending manner, the button sleeve 91 is provided with a sliding groove 911 along the axial direction, and the button 92 realizes the pressing and rebounding actions of the button 92 through the sliding guide matching of the sliding block 921 and the sliding groove 911.

As shown in fig. 11 and 12, a groove 922 is formed at the tail end of the key 92 extending into the opening structure 8, the groove 922 is approximately a trapezoidal opening structure, and as shown in fig. 9, an elastic protrusion 65 approximately in a hook-shaped structure is formed at the end of the push plate 6 extending corresponding to the groove 922; under the cooperation restriction of sliding block 921 and sliding groove 911, elastic positioning snap fit is realized with recess 922 to elastic protrusion 65. When the locking of the automobile headrest needs to be released, a user only needs to press the key 92 to drive the push plate 6 to move; when the user releases the key 92, the push plate 6 can be reset to the initial state, and the key 92 is simultaneously pressed to the initial state by the push plate 6, so that the unlocking operation is completed.

The present embodiment is further described below with reference to specific actions:

when the headrest of the automobile is in the locked state, the push plate 6 and the key 92 are both in the initial state, and the two clamping sections 513 of the clamping rod 51 are clamped and fixed with the corresponding clamping grooves 21 on the headrest rod 2 under the action of the elastic jacking piece 52. When a user needs to adjust the height position of the headrest of the automobile, the button 92 is pressed, so that the push plate 6 slides and abuts against the two bent sections 512 of the clamping rod 51, and the clamping rod 51 is driven to slide and move against the elastic force of the elastic pressing member 52 until the two clamping sections 513 of the clamping rod 51 are separated from the clamping groove 21, thereby completing the unlocking operation. After the user adjusts and finds the suitable height position of headrest body 1, can loosen button 92, then joint pole 51 slide motion under the effect of elasticity casting die, and realize the joint with the draw-in groove 21 after adjusting fixed, it needs to be noted that, the mode that both can adopt artificial manual debugging seeks the draw-in groove 21 of suitable position, also can install the elasticity joint structure who uses with draw-in groove 21 cooperation in guide pin bushing 34, be similar to the well excellent marble structure of folding umbrella, telescopic spring card pearl etc., seek the draw-in groove 21 of suitable position, thereby accomplish the height position control operation of car headrest.

Example two:

as shown in fig. 13, a headrest for a vehicle differs from the first embodiment in that: the joint 5 and the push plate 6 are matched to realize different linkage driving structures for locking and unlocking the automobile headrest lock 4. In this embodiment, the two bending sections 512 of the latch rod 51 are elastically twisted and fixed on the bearing plate 33 and are abutted against the elastic pressing member 52 and the pushing plate 6, the bending sections 512 can be integrally formed with the bearing plate 33 to form a twisted structure, or can be twisted and connected by using a torsion spring, and other similar structures capable of elastically rotating can be also applied to the connection between the bending sections 512 and the bearing plate 33 (the elastic rotating structure is not shown in fig. 13, but is mainly used for showing the difference of the pressing and contacting positions of the elastic pressing member 52 and the latch rod 51). When the two bent sections 512 of the clamping rod 51 abut against the elastic pressing member 52, the two clamping sections 513 are clamped and fixed with the corresponding clamping grooves 21, and the elastic pressing member 52 plays a role in further improving the clamping and fixing stability; when the height of the headrest of the automobile needs to be adjusted, the two clamping sections 513 are clamped with the clamping groove 21 under the action of the elastic deformation force of the respective bending sections 512, and the elastic jacking piece 52 plays a role in accelerating the rebound resetting of the bending sections 512 and the clamping sections 513 and improving the clamping stability.

Example three:

as shown in fig. 14, a process for manufacturing an automobile headrest includes the following steps:

s1, firstly assembling a headrest framework 3, then inspecting a facing material, a foaming material and the headrest framework 3, warehousing and storing qualified products, and returning unqualified products; when detecting the material of headrest foaming 12 and the headrest framework 3 performance, need detect the foaming hardness of headrest foaming 12, detect the structural integrity of headrest framework 3 simultaneously.

S2, the raw materials are transferred to a production line, the headrest framework 3 is arranged in the headrest foaming 12 on the production line, meanwhile, the foaming buffering pillow 15 is filled between the headrest framework 3 and the headrest foaming 12, the foaming buffering pillow 15 is clamped and fixed in the embedding groove 31, then the headrest framework 3, the foaming buffering pillow 15 and the headrest foaming 12 are integrally arranged in the surface sleeve, meanwhile, the foaming buffering cushion 14 is filled between the headrest surface sleeve 13 and the headrest foaming 12, the foaming buffering cushion 14 is embedded in the accommodating groove 121, then, the vacuumizing treatment is carried out through vacuumizing equipment, and finally, the J-shaped strip on the headrest surface sleeve 13 is fastened to seal the headrest surface sleeve 13, and the button 9 is fastened on the headrest framework 3.

And S3, shaping and backstitching the automobile headrest, and ironing the coated automobile headrest.

S4, checking the appearance flatness and the functional integrity of the automobile headrest; the items to be detected comprise the flame retardance of the detected automobile headrest, the plugging force of the automobile headrest and the unlocking force of a button 9 of the automobile headrest, wherein the plugging force range of the automobile headrest is 5-60N, and the unlocking force range of a headrest lock 4 of the automobile headrest is 10-30N.

And S5, packaging and warehousing or delivering the finished product out of a warehouse.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. The utility model provides an automobile headrest, including two headrest poles (2) and install headrest body (1) on headrest pole (2), its characterized in that: the headrest body (1) comprises a headrest framework (3) connected with the headrest rods (2), a headrest sleeve (11) is coated outside the headrest framework (3), the headrest framework (3) is matched with the two headrest rods (2) in a sliding and sleeving manner, and the headrest framework (3) and the headrest rods (2) are connected with headrest locks (4); the headrest lock (4) comprises a push plate (6) and a clamping piece (5) which are arranged on a headrest framework (3), the push plate (6) is arranged on the headrest framework (3) in a sliding mode, a clamping groove (21) is formed in the headrest rod (2) along the height direction of the headrest rod, the clamping piece (5) is clamped and matched with the clamping groove (21) to fix the headrest framework (3), the push plate (6) is abutted to the clamping piece (5) in a sliding motion, and the clamping piece (5) is driven to be separated from the clamping grooves (21) in the two headrest rods (2); push pedal (6) are connected with elastic component (7) that are used for driving push pedal (6) to reset with headrest framework (3), work as push pedal (6) when reseing under elastic component (7) effect, joint spare (5) reset under self elastic force effect and fixed with draw-in groove (21) joint on two headrest poles (2).

2. The headrest for cars of claim 1, characterized in that: the clamping piece (5) comprises an elastic jacking piece (52) arranged on the headrest framework (3) and a clamping rod (51) matched with the elastic jacking piece (52), and the clamping rod (51) is arranged on the headrest framework (3) in a sliding manner and is abutted and matched with the push plate (6); the clamping rods (51) are clamped and fixed with the clamping grooves (21) on the two head pillow rods (2) under the jacking action of the elastic jacking pieces (52), and the clamping rods (51) are separated from the clamping grooves (21) on the two head pillow rods (2) under the pushing action of the pushing plate (6).

3. The headrest for cars of claim 2, characterized in that: the clamping rod (51) is elastically fixed on the headrest framework (3) and is in butt fit with the push plate (6), and the clamping rod (51) is elastically bent under the jacking action of the elastic jacking piece (52) and is clamped and fixed with the clamping grooves (21) on the two headrest rods (2).

4. A headrest for cars according to claim 2 or 3, characterized in that: the headrest framework (3) is provided with a jacking groove (333) used for installing the elastic jacking part (52), and the jacking groove (333) is provided with a limiting part (336) used for limiting the elastic jacking part (52) to be separated.

5. A headrest for cars according to claim 2 or 3, characterized in that: the clamping rod (51) comprises a main rod (511), two bending sections (512) and two clamping sections (513), wherein the two bending sections (512) and the two clamping sections (513) are formed by extending the main rod (511), the clamping sections (513) are clamped and matched with the clamping grooves (21), and the bending sections (512) are respectively arranged into an inclined straight line structure (51-B) and a triangular bending structure (51-A); an elastic shifting sheet (64) is arranged on the push plate (6) corresponding to the inclined straight line structure (51-B), and the elastic shifting sheet (64) is in elastic butt fit with the inclined straight line structure (51-B).

6. The headrest for cars of claim 5, characterized in that: a triangular protruding structure (63) is formed on the push plate (6) corresponding to the triangular bending structure (51-A), and the triangular protruding structure (63) is in elastic abutting fit with the triangular bending structure (51-A).

7. The headrest for cars of claim 1, characterized in that: a button (9) is arranged on the headrest framework (3), and the button (9) is arranged corresponding to the end part of the push plate (6); button (9) including be fixed in button cover (91) on headrest framework (3) and slide and set up button (92) in button cover (91), set up on button (92) and be formed with recess (922), just correspond draw-in groove (21) and extend and be formed with elastic bulge (65) on push pedal (6), elastic bulge (65) and recess (922) elasticity joint cooperation.

8. The headrest for cars of claim 1, characterized in that: the headrest framework (3) is matched with a connecting frame (36), the connecting frame (36) is fixedly connected to the top ends of the two headrest rods (2), and the connecting frame (36) and the top ends of the two headrest rods (2) are connected with clamp springs (362).

9. A processing technology of an automobile headrest is characterized in that: s1, inspecting a surface sleeve material, a foaming material and a headrest framework (3), warehousing and storing qualified products, and returning unqualified products; s2, the raw materials are transferred to a production line, the headrest framework (3) is arranged in headrest foaming (12) on the production line, a foaming buffer pillow (15) is filled between the headrest framework (3) and the headrest foaming (12), then the headrest framework (3), the foaming buffer pillow (15) and the headrest foaming (12) are integrally arranged in a face sleeve, a foaming buffer pad (14) is filled between a headrest face sleeve (13) and the headrest foaming (12), then vacuumizing treatment is carried out, finally J-shaped strips on the face sleeve are fastened, and a button (9) is fastened on the headrest framework (3); s3, shaping and backstitching the headrest, and ironing the coated headrest; s4, checking the appearance flatness and the functional integrity of the headrest; and S5, packaging and warehousing or delivering the finished product out of a warehouse.

10. The automotive headrest processing technology according to claim 9, characterized in that: in step S1, the foam hardness of the headrest foam (12) is detected, and the insertion/extraction force of the headrest frame (3) is checked; in step S4, the flame retardancy of the headrest, the insertion/removal force of the headrest, and the unlocking force of the button (9) of the headrest are detected.