CN209852138U - Four-way headrest - Google Patents

Abstract

The utility model discloses a four-way headrest, which comprises a headrest front cover, an up-down sliding bracket, an inserted bar, a front-back movement guide rail and a push plate, wherein the front-back movement guide rail is connected in the headrest front cover, and the back and forth movement guide rail passes through the up and down sliding bracket and can move on the up and down sliding bracket along the back and forth direction of the headrest front cover, the up-down sliding bracket is sleeved on the inserted bar and can move on the inserted bar along the up-down direction of the headrest front cover, the push plate is arranged in the up-and-down sliding support and can move on the up-and-down sliding support along the left-and-right direction of the headrest front cover, the headrest front cover comprises a push plate, and is characterized in that a first buckling part and a second buckling part are arranged on the push plate, a plurality of first clamping grooves in the front-back direction of the headrest front cover are formed in the front-back movement guide rail, and a plurality of second clamping grooves in the up-down direction of the headrest front cover are formed in the inserted bar. The synchronism is very good, the stability of the four-way headrest is greatly improved, and the assembly is convenient.

Description

Four-way headrest

Technical Field

The utility model relates to the technical field of seats, in particular to four-way headrest.

Background

With the increasing popularity and frequency of use of automobiles, the comfort requirements of passengers on the automobile seats are also increased. The headrest of the automobile seat in the current market is mainly a two-way headrest which is adjusted up and down, the four-way headrest is mostly used for the front row, and the four-way headrest has a complex structure and multiple parts, so that the assembly links are multiple; and the breaking of the force in the unlocking structure is large, the synchronism of up-down and front-back unlocking is low, and the stability is poor.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a quadriversal headrest in order to overcome the structure complicacy of current quadriversal headrest, stability relatively poor grade defect.

The utility model discloses an above-mentioned technical problem is solved through following technical scheme:

a four-way headrest is characterized by comprising a headrest front cover, an up-and-down sliding support, an insertion rod, a front-and-back movement guide rail and a push plate, wherein the front-and-back movement guide rail is connected into the headrest front cover, penetrates through the up-and-down sliding support and can move on the up-and-down sliding support along the front-and-back direction of the headrest front cover, the up-and-down sliding support is sleeved on the insertion rod and can move on the insertion rod along the up-and-down direction of the headrest front cover, the push plate is arranged in the up-and-down sliding support and can move on the up-and-down sliding support along the left-and-right direction of the headrest front cover, a first clamping part and a second clamping part are arranged on the push plate, a plurality of first clamping grooves along the front-and-back direction of the headrest front cover are arranged on the front-and-back movement guide rail, a plurality of second clamping grooves along the up-and-, the four-way headrest has a locking position and an unlocking position;

when the locking position is reached, the first clamping part is connected to the first clamping groove, and the second clamping part is connected to the second clamping groove;

when the unlocking position is reached, the first clamping portion is separated from the first clamping groove, and the second clamping portion is separated from the second clamping groove.

In the scheme, by adopting the structural form, the first clamping part and the second clamping part are simultaneously inserted into or separated from the first clamping groove and the second clamping groove through the movement of the push plate, so that unlocking and locking are realized, the synchronism is very good, no powerful breakage exists in the movement process, and the stability of the four-way headrest is greatly improved; meanwhile, the structure is simple, and the assembly is convenient.

Preferably, the upper and lower sliding support has a limiting groove, the limiting groove is recessed inward from a side of the upper and lower sliding support facing away from the headrest front cover, and one end of the limiting groove extends to an end of the upper and lower sliding support, and the push plate is inserted into the limiting groove from one end of the limiting groove and can move in the limiting groove along the left and right directions of the headrest front cover.

In this scheme, adopt above-mentioned structural style, the spacing groove plays the limited action to the push pedal, with the push pedal restriction at the spacing inslot and can only remove along left right direction, effectively realize the switching back and forth of four-way headrest between locking position and unblock position, improved the stability of four-way headrest.

Preferably, the up-down sliding support further has at least one positioning hole, the positioning hole extends along the sliding direction of the push plate, the push plate is provided with at least one positioning column, the positioning columns correspond to the positioning holes one to one, and the positioning columns are inserted into the positioning holes and can slide in the positioning holes.

In this scheme, adopt above-mentioned structural style, realize the accurate positioning installation of push pedal through reference column and locating hole, and the locating hole will further play the restriction to the reference column, has improved the stability of four-way headrest greatly.

Preferably, the push plate comprises a plate body and a fastener, one end of the fastener is connected to the plate body, the other end of the fastener extends outwards to form a protrusion, and the first fastening portion is located on one side, facing the first clamping groove, of the fastener.

Preferably, a first guide sliding surface is arranged on one side of the first buckle part, which is back to the headrest front cover, a plurality of first clamping grooves are arranged at intervals on one side of the forward and backward movement guide rail, which faces the buckle piece, and a second guide sliding surface is arranged on one side of the first clamping grooves, which is back to the headrest front cover.

In this scheme, adopt above-mentioned structural style, lead the cooperation of spigot surface through first spigot surface and second and be convenient for first buckle portion and insert to first draw-in groove, improved the stability of four-way headrest.

Preferably, the up-down sliding support is provided with a first through hole, the first through hole is sleeved on the inserted bar and can move on the inserted bar along the up-down direction of the headrest front cover, the push plate further comprises an insert, the insert is detachably connected to the plate body, the second clamping portion is located on one side, facing the inserted bar, of the insert, and the insert can be inserted into the first through hole and inserted into the second clamping groove or separated from the second clamping groove.

In this scheme, adopt above-mentioned structural style, can guarantee through the inserts to use with the accurate cooperation of second draw-in groove, guaranteed the practicality and the stability of quadriversal headrest.

Preferably, the four-way headrest further comprises a fixed guide sleeve, the fixed guide sleeve penetrates through the first through hole and is connected to the up-and-down sliding support, the inserted link penetrates through the fixed guide sleeve, and a positioning opening for inserting the second buckling part is formed in the outer peripheral surface of the fixed guide sleeve.

Preferably, the up-down sliding support is provided with a plurality of guide holes, the guide holes penetrate through the up-down sliding support along the front-back direction of the headrest front cover, the front-back movement guide rail is provided with a plurality of guide portions, the guide portions correspond to the guide holes one to one, and the guide portions are inserted into the guide holes and can slide in the guide holes.

In the scheme, the structure is adopted, the guide holes and the guide parts have a guide function, so that the phenomenon of offset and dislocation generated when the front and back movement guide rail moves back and forth is prevented, and the stability of the four-way headrest is improved.

Preferably, the four-way headrest further comprises a return spring, and two ends of the return spring are respectively connected to the upper and lower sliding supports and the push plate;

when the four-way headrest is at the unlocking position and external force is removed, the four-way headrest is restored to the locking position by the action force of the return spring on the push plate.

On the basis of the common knowledge in the field, the above preferred conditions can be combined at will to obtain the preferred embodiments of the present invention.

The utility model discloses an actively advance the effect and lie in:

the four-way headrest of the utility model realizes unlocking and locking through the movement of the push plate, has very good synchronism and greatly improves the stability of the four-way headrest; meanwhile, the structure is simple, and the assembly is convenient.

Drawings

Fig. 1 is an exploded schematic view of a four-way headrest according to an embodiment of the present invention.

Fig. 2 is a schematic structural view of a four-way headrest in a locked position according to an embodiment of the present invention, in which a front headrest cover is omitted.

Fig. 3 is a cross-sectional view taken along line a-a of fig. 2.

Fig. 4 is a cross-sectional view taken along line B-B of fig. 2.

Fig. 5 is a schematic structural view of the four-way headrest in the unlocked position according to the embodiment of the present invention, in which the headrest front cover is omitted.

Fig. 6 is a cross-sectional view taken along line C-C of fig. 5.

Fig. 7 is a cross-sectional view taken along line D-D of fig. 5.

Description of reference numerals:

headrest front cover 1

Front and rear movement guide rail 2

First card slot 21

Second sliding guide surface 211

Guide part 22

Up and down sliding support 3

Limiting groove 31

Positioning hole 32

First through hole 33

Guide hole 34

Inserted link 4

Second card slot 41

Push plate 5

First engaging part 51

Second latch portion 52

Plate body 53

Fastener 54

First guiding and sliding surface 541

Insert 55

Positioning post 56

Fixed guide sleeve 6

Return spring 7

Push button 8

Button cover 9

Headrest rear cover 10

Detailed Description

The present invention will be more clearly and completely described below by way of examples and with reference to the accompanying drawings, but the present invention is not limited thereto.

As shown in fig. 1 to 7, the four-way headrest according to the embodiment of the present invention includes a headrest front cover 1, an up-down sliding bracket 3, an insert rod 4, a forward-backward movement guide rail 2 and a push plate 5, the forward-backward movement guide rail 2 is connected to the inside of the headrest front cover 1, and the fore-and-aft movement guide rail 2 passes through the up-and-down sliding support 3 and can move on the up-and-down sliding support 3 along the fore-and-aft direction of the headrest front cover 1, the up-and-down sliding support 3 is sleeved on the inserted bar 4 and can move on the inserted bar 4 along the up-and-down direction of the headrest front cover 1, the push plate 5 is arranged in the up-and-down sliding support 3 and can move on the up-and-down sliding support 3 along the left-and-right direction of the headrest front cover 1, the push plate 5 is provided with a first buckling part 51 and a second buckling part 52, the fore-and-aft movement guide rail 2 is provided with a plurality of first clamping grooves 21 along the fore-and-aft direction of the headrest front cover 1, and the inserted bar 4.

The four-way headrest has a locking position and an unlocking position; in the locking position, the first locking part 51 is connected to the first card slot 21, and the second locking part 52 is connected to the second card slot 41; in the unlocking position, the first locking portion 51 is separated from the first locking groove 21, and the second locking portion 52 is separated from the second locking groove 41. When the four-direction headrest is not subjected to external force acting force, the four-direction headrest is in a locking position, the first buckling part 51 is connected with the first clamping groove 21, and the forward and backward movement guide rail 2 is limited to move on the upper and lower sliding supports 3 through the first buckling part 51 and the first clamping groove 21; the second locking part 52 is connected to the second locking groove 41, and the movement of the up-and-down sliding bracket 3 on the inserted link 4 is limited by the second locking part 52 and the second locking groove 41, so that the four-way headrest is locked. When the four-way headrest is subjected to external force, the force acts on the push plate 5 and pushes the push plate 5 to move in the left-right direction, the four-way headrest is located at an unlocking position, the first buckling part 51 is separated from the first clamping groove 21, and the front-back movement guide rail 2 can move in the front-back direction on the upper and lower sliding supports 3, so that the front headrest cover 1 is driven to move back and forth for adjustment; the second buckling part 52 is separated from the second clamping groove 41, and the up-down sliding support 3 can move up and down on the inserted rod 4, so that the headrest front cover 1 is driven to move up and down to adjust, and the front, back, up and down positions of the four-direction headrest are adjusted. Through the movement of the push plate 5, the first buckling part 51 and the second buckling part 52 are simultaneously inserted into or separated from the first clamping groove 21 and the second clamping groove 41, so that unlocking and locking are realized, the synchronism is very good, no powerful breakage occurs in the moving process, and the stability of the four-way headrest is greatly improved; meanwhile, the structure is simple, and the assembly is convenient. Here, the left-right direction, the front-back direction, and the up-down direction are all orientations with respect to the front surface of the headrest front cover 1.

In the embodiment, the four-way headrest further comprises a button 8, a button cover 9 and a headrest rear cover 10, the headrest rear cover 10 is connected to the headrest front cover 1 and forms a headrest framework, and the unlocking structures are arranged in the headrest framework. The button cover 9 is arranged on the headrest front cover 1, and the button 8 is connected with the push plate 5 and is positioned in the button cover 9. The push plate 5 is pushed by a force on the button 8 in use.

The four-way headrest also comprises a return spring 7, and two ends of the return spring 7 are respectively connected with the upper and lower sliding supports 3 and the push plate 5; when the four-way headrest is in the unlocking position and the external force is removed, the four-way headrest is restored to the locking position by the acting force of the return spring 7 on the push plate 5. The return spring 7 is used for restoring to the initial position, namely the four-way headrest is located at the locking position, and the reuse of the four-way headrest is guaranteed.

The up-down sliding support 3 is provided with a limiting groove 31, one side of the limiting groove 31, which faces away from the headrest front cover 1, of the up-down sliding support 3 is inwards recessed, one end of the limiting groove 31 extends to the end of the up-down sliding support 3, and the push plate 5 is inserted into the limiting groove 31 from one end of the limiting groove 31 and can move in the limiting groove 31 along the left-right direction of the headrest front cover 1. The limiting groove 31 has a limiting effect on the push plate 5, the push plate 5 is limited in the limiting groove 31 and can only move along the left and right directions, the four-way headrest can be effectively switched back and forth between the locking position and the unlocking position, and the stability of the four-way headrest is improved.

The up-down sliding support 3 further has at least one positioning hole 32, the positioning hole 32 extends along the sliding direction of the push plate 5, the push plate 5 has at least one positioning column 56, the positioning columns 56 correspond to the positioning holes 32 one by one, and the positioning columns 56 are inserted into the positioning holes 32 and can slide in the positioning holes 32. During the equipment, insert push pedal 5 to spacing groove 31 in, and in reference column 56 inserted corresponding locating hole 32, realize the accurate positioning installation of push pedal 5 through reference column 56 and locating hole 32, and locating hole 32 will further play the limiting displacement to reference column 56, improved the stability of four-way headrest greatly.

The push plate 5 includes a plate body 53 and a latch 54, one end of the latch 54 is connected to the plate body 53, the other end of the latch 54 extends outward to form a protrusion, and the first latch 51 is located on one side of the latch 54 facing the first card slot 21. The plate body 53 moves in the limiting groove 31 of the upper and lower sliding supports 3 in the left-right direction, the fastener 54 can be inserted into the first clamping groove 21 or separated from the first clamping groove 21, the structure is simple, and the processing and manufacturing are convenient. Wherein, the plate body 53 and the fastener 54 are integrally formed.

The first locking portion 51 has a first guiding surface 541 on a side facing away from the headrest front cover 1, a plurality of first locking grooves 21 are arranged at intervals on a side of the forward and backward movement guide rail 2 facing the locking member 54, and a second guiding surface 211 is arranged on a side of the first locking grooves 21 facing away from the headrest front cover 1. The first buckling part 51 can be conveniently inserted into the first clamping groove 21 through the matching of the first slide guiding surface 541 and the second slide guiding surface 211, and the stability of the four-way headrest is improved. In the locked position, one side surface of the first buckling part 51 facing the headrest front cover 1 and one side surface of the first clamping groove 21 facing the headrest front cover 1 are abutted and matched with each other, and the front end surface of the headrest front cover 1 is parallel.

The up-down sliding support 3 is provided with a first through hole 33, the first through hole 33 is sleeved on the inserted link 4 and can move on the inserted link 4 along the up-down direction of the headrest front cover 1, the push plate 5 further comprises an insert 55, the insert 55 is detachably connected to the plate body 53, the second buckling part 52 is positioned on one side of the insert 55 facing the inserted link 4, and the insert 55 can be inserted into the first through hole 33 and inserted into the second clamping groove 41 or the insert 55 is separated from the second clamping groove 41. In the locking position, the insert 55 is inserted into the first through hole 33 and the second engaging groove 41, and the up-and-down sliding bracket 3 is restricted from moving on the inserting rod 4; when the headrest is in the unlocking position, the insert 55 is driven to be separated from the second clamping groove 41 by the movement of the push plate 5, so that the up-and-down sliding support 3 can move up and down on the inserted rod 4, and the up-and-down position of the four-direction headrest can be adjusted. The insert 55 can ensure the accurate matching of the headrest with the second clamping groove 41, and the practicability and stability of the four-way headrest are ensured. The number of the first through holes 33 and the number of the insert rods 4 are not limited, and in this embodiment, the number of the insert rods 4 is two, and the two insert rods 4 are respectively disposed at two ends of the vertical sliding bracket 3.

The four-way headrest further comprises a fixed guide sleeve 6, the fixed guide sleeve 6 penetrates through the first through hole 33 and is connected to the upper and lower sliding supports 3, the inserted bar 4 penetrates through the fixed guide sleeve 6, and a positioning opening for inserting the second buckling part 52 is formed in the outer peripheral surface of the fixed guide sleeve 6. The fixed guide sleeve 6 is fixed on the up-down sliding support 3 in a buckling mode and is used for being sleeved on the inserted rod 4, the up-down sliding support 3 is favorably used through the fixed guide sleeve 6, and the stability of the four-way headrest is improved.

The up-down sliding support 3 is provided with a plurality of guide holes 34, the guide holes 34 penetrate through the up-down sliding support 3 along the front-back direction of the headrest front cover 1, the front-back movement guide rail 2 is provided with a plurality of guide parts 22, the guide parts 22 correspond to the guide holes 34 one by one, and the guide parts 22 are inserted into the guide holes 34 and can slide in the guide holes 34. The guide hole 34 and the guide portion 22 have a guiding function, and prevent the displacement and dislocation phenomenon when the forward and backward movement of the forward and backward movement guide rail 2, thereby improving the stability of the four-way headrest. The shape of the guide portion 22 is not limited, and the first engaging grooves 21 may be provided at intervals on the guide portion 22.

Although specific embodiments of the present invention have been described above, it will be understood by those skilled in the art that this is by way of example only and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and the principles of the present invention, and these changes and modifications are all within the scope of the present invention.

Claims (9)

1. A four-way headrest is characterized by comprising a headrest front cover, an upper sliding support, a lower sliding support, an insertion rod, a front-back movement guide rail and a push plate, wherein the front-back movement guide rail is connected into the headrest front cover, the front-back movement guide rail penetrates through the upper sliding support and the lower sliding support and can move on the upper sliding support and the lower sliding support along the front-back direction of the headrest front cover, the upper sliding support and the lower sliding support are sleeved on the insertion rod and can move on the insertion rod along the upper-lower direction of the headrest front cover, the push plate is arranged in the upper sliding support and the lower sliding support and can move on the upper sliding support and the lower sliding support along the left-right direction of the headrest front cover, a first clamping part and a second clamping part are arranged on the push plate, a plurality of first clamping grooves along the front-back direction of the headrest front cover are arranged on the front-back movement guide rail, a plurality of second clamping grooves along the upper-lower direction of, the four-way headrest has a locking position and an unlocking position;

when the locking position is reached, the first clamping part is connected to the first clamping groove, and the second clamping part is connected to the second clamping groove;

when the unlocking position is reached, the first clamping portion is separated from the first clamping groove, and the second clamping portion is separated from the second clamping groove.

2. The four-way headrest according to claim 1, wherein the up-down sliding bracket has a stopper groove recessed inward from a side of the up-down sliding bracket facing away from the headrest front cover, and one end of the stopper groove extends to an end of the up-down sliding bracket, and the push plate is inserted into the stopper groove from one end of the stopper groove and is movable in the stopper groove in a left-right direction of the headrest front cover.

3. The four-way headrest according to claim 1, wherein the up-down sliding bracket further comprises at least one positioning hole extending along the sliding direction of the push plate, the push plate comprises at least one positioning post, the positioning posts are in one-to-one correspondence with the positioning holes, and the positioning posts are inserted into the positioning holes and can slide in the positioning holes.

4. The four-way headrest according to claim 1, wherein the push plate comprises a plate body and a latch, one end of the latch is connected to the plate body, the other end of the latch extends outward to form a protrusion, and the first latch is located on a side of the latch facing the first slot.

5. The four-way headrest according to claim 4, wherein a side of said first catch portion facing away from said headrest front cover has a first slide guide surface, a plurality of said first catching grooves are provided at intervals on a side of said forward-rearward movement guide rail facing said catching member, and a side of said first catching grooves facing away from said headrest front cover has a second slide guide surface.

6. The four-way headrest according to claim 1, wherein the vertically sliding bracket has a first through hole, the first through hole is sleeved on the insert rod and can move on the insert rod along the vertical direction of the headrest front cover, the push plate further comprises an insert, the insert is detachably connected to the plate body, the second locking portion is located on one side of the insert facing the insert rod, and the insert can be inserted into the first through hole and inserted into the second locking groove or the insert is separated from the second locking groove.

7. The four-way headrest according to claim 6, further comprising a fixing guide passing through the first through hole and coupled to the up-down sliding bracket, wherein the insert rod passes through the fixing guide, and a positioning hole for inserting the second locking part is formed on an outer circumferential surface of the fixing guide.

8. The four-way headrest according to claim 1, wherein the up-down sliding bracket has a plurality of guide holes penetrating therethrough in a front-rear direction of the headrest front cover, the front-rear movement guide rail has a plurality of guide portions corresponding one-to-one to the guide holes, and the guide portions are inserted into the guide holes and slidably moved therein.

9. The four-way headrest according to claim 1, further comprising a return spring, both ends of said return spring being connected to said up-down sliding bracket and said push plate, respectively;

when the four-way headrest is at the unlocking position and external force is removed, the four-way headrest is restored to the locking position by the action force of the return spring on the push plate.