CN210760371U - Seat four-way headrest - Google Patents
Seat four-way headrest Download PDFInfo
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- CN210760371U CN210760371U CN201921171159.4U CN201921171159U CN210760371U CN 210760371 U CN210760371 U CN 210760371U CN 201921171159 U CN201921171159 U CN 201921171159U CN 210760371 U CN210760371 U CN 210760371U
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- headrest
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- rod
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Abstract
The utility model provides a seat quadriversal headrest, it includes headrest shell, U-shaped headrest pole, release button, X to sliding guide structure and release mechanism. The X-direction sliding guide structure comprises two X-direction gear tubes fixedly connected with the headrest shell; two X are worn to establish on release mechanism's pedestal to the gear pipe, and release mechanism can carry out X to the gear pipe relatively X and move. Two lock tongues of the unlocking mechanism are in intermittent clamping connection with the two X-direction gear shift pipes in a one-to-one correspondence manner; the Z-direction sliding sleeve is sleeved on the U-shaped headrest rod and is clamped with the unlocking steel wire; the unlocking steel wire is in intermittent clamping connection with the U-shaped headrest rod. In the utility model, the X-direction sliding guide structure comprises two X-direction gear tubes, when the four-direction headrest is impacted from two sides, the four-direction headrest can not be inclined, so that the stability of the four-direction headrest is good; and the number of spring bolt is two, and when one damaged, another can also continue to use, makes this four-way headrest still can carry out X to the regulation, improves this four-way headrest's life.
Description
Technical Field
The utility model belongs to the technical field of the seat, concretely relates to seat quadriversal headrest.
Background
Currently, a four-way headrest is mainly applied to a car seat, and can be adjusted in four directions, namely, a front direction and a back direction (X direction) and an up direction and a down direction (z direction) according to the requirements of a passenger so as to increase the comfort of the passenger.
For example, CN104002714B discloses a novel four-way headrest, which comprises a headrest housing, a U-shaped headrest rod, a Z-direction sliding fixing sleeve seat, a button bracket, a latch return spring, an X-direction sliding fixing sleeve seat, an X-direction sliding guide, an unlocking steel wire and an unlocking button; the locking and unlocking among the Z-direction sliding fixing sleeve seat, the button support and the U-shaped headrest rod are realized through the unlocking steel wire, and the locking and unlocking between the clamping tongue and the X-direction sliding guide piece are realized by driving the clamping tongue to move through the unlocking steel wire
The technical scheme mainly has the following problems: 1) the number of the X-direction sliding guide pieces is one, when the headrest is impacted from two sides, the headrest is easy to incline, and the impact resistance is strong and poor, so that the stability of the headrest is poor; 2) The number of the lock tongues is one, the reliability is low, the impact resistance is strong and poor, and once the lock tongues are damaged, the position of the headrest cannot be adjusted.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving the technical problem who exists among the prior art, the utility model aims at providing a better seat quadriversal headrest of stability.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a seat four-way headrest comprises a headrest shell, a U-shaped headrest rod, an unlocking button, an X-direction sliding guide structure capable of moving along with the headrest shell in an X direction relative to the U-shaped headrest rod, and an unlocking mechanism capable of moving along with the headrest shell in a Z direction relative to the U-shaped headrest rod, wherein the four-way headrest has a locking state and an unlocking state, the unlocking button is pressed, the four-way headrest is in the unlocking state, the unlocking button is released, and the four-way headrest is in the locking state;
the X-direction sliding guide structure is arranged in the headrest shell and comprises two X-direction shift pipes which are arranged in parallel and fixedly connected with the headrest shell;
the unlocking mechanism is arranged in the headrest shell and can move in the X direction relative to the X-direction gear tube, and comprises a seat body, wherein two Z-direction sliding sleeves, two lock tongues and an unlocking steel wire directly or indirectly connected with an unlocking button are arranged on the seat body; the base body is provided with two first guide holes arranged in the X direction, and the two X-direction gear pipes correspondingly penetrate through the two first guide holes one by one; the two lock tongues are elastically connected with the base body in the Z direction and are in intermittent clamping connection with the two X-direction gear pipes in a one-to-one correspondence manner; the Z-direction sliding sleeve is sleeved on the U-shaped headrest rod and is clamped with the unlocking steel wire; the unlocking steel wire is elastically connected with the seat body in the X direction and is intermittently clamped with the U-shaped headrest rod;
when the lock is in a locked state, the unlocking steel wire is fixedly clamped with the U-shaped headrest rod, and the lock tongue is fixedly clamped with the X-direction gear tube;
when the lock is in an unlocking state, the unlocking steel wire is separated from the U-shaped headrest rod, and the lock tongue is also separated from the X-direction gear tube.
In the technical scheme, compared with the prior art, the X-direction sliding guide structure comprises two X-direction gear tubes which are arranged in parallel, and when the four-direction headrest is impacted from two sides, the four-direction headrest cannot be inclined, so that the four-direction headrest is good in stability; and the number of spring bolt is two, and when one damaged, another can also continue to use, makes this four-way headrest still can carry out X to the regulation, improves this four-way headrest's life.
In a preferred embodiment of the utility model, a Z-direction sliding sleeve is provided with a transverse seam slot which is clamped with an unlocking steel wire, and a plurality of locking notch slots which are arranged along the Z direction and are intermittently clamped with the unlocking steel wire are arranged on a U-shaped headrest rod;
when the headrest is in a locking state, the unlocking steel wire is clamped and fixed with the locking notch groove on the U-shaped headrest rod;
when the unlocking state is realized, the unlocking steel wire is separated from the locking notch groove of the U-shaped headrest rod.
In the technical scheme, the Z-direction sliding sleeve is provided with the transverse slot which is clamped with the unlocking steel wire, so that the structure is simple; establish locking breach groove on the U-shaped headrest pole, unblock steel wire and locking breach groove intermittent type joint and realize locking and unblock, simple structure, convenient operation.
In a preferred embodiment of the utility model, two X-direction gear tubes are respectively provided with a plurality of bolt clamping grooves which are arranged along the X direction and are in intermittent clamping connection with the bolts; and when the lock is in an unlocking state, the lock tongue is separated from the lock tongue clamping groove of the X-direction gear tube.
Among the above-mentioned technical scheme, X is to establishing the spring bolt draw-in groove on the gear pipe, and the spring bolt realizes locking and unblock with spring bolt draw-in groove intermittent type joint, simple structure, convenient operation.
In a preferred embodiment of the present invention, the unlocking mechanism further comprises a button support connected in abutting contact with the unlocking button, and the unlocking steel wire is fixedly connected to the button support; the button bracket is provided with obliquely arranged sliding columns, and one Z-direction sliding sleeve is provided with a sliding chute matched with the sliding column; and when the unlocking button is pressed, the button support can slide obliquely relative to the seat body through the sliding column and the sliding groove.
After the button bracket is arranged, the unlocking steel wire is connected with the unlocking key through the button bracket; and the button support can enable the sliding column and the sliding groove to slide obliquely relative to the seat body, so that the unlocking steel wire moves obliquely along with the sliding column and has X-direction component motion, the unlocking steel wire can be separated from the U-shaped headrest rod, the lock tongue can be separated from the X-direction gear tube, and the four-direction headrest is in an unlocking state.
In a preferred embodiment of the present invention, the unlocking steel wire has two oblique guide sections parallel to the sliding groove, and two oblique guide grooves matching with the two oblique guide sections are correspondingly arranged on the seat body; when the unlocking button is pressed, the unlocking steel wire can be separated from the U-shaped headrest rod under the action of the inclined guide groove.
The oblique guide section and the oblique guide groove play a role in guiding and limiting, and when the unlocking button is pressed, the unlocking steel wire can slide more stably.
In another preferred embodiment of the present invention, the unlocking mechanism further comprises an unlocking mechanism housing, and the seat body is mounted on the unlocking mechanism housing and is fixed in a clamping manner with the unlocking mechanism housing; a Z-direction sliding sleeve is also mounted on the unlocking mechanism shell.
Among the above-mentioned technical scheme, the rigid coupling is in the same place after the release mechanism shell sets up with the base components of a whole that can function independently, compares release mechanism shell and base integrated into one piece, and this scheme can reduce the technology degree of difficulty, reduction in production cost.
In another preferred embodiment of the present invention, the X-direction sliding guide structure further includes a guide tube fixedly connected to the headrest housing, the guide tube is parallel to the X-direction gear tube and is disposed below the gear tube, the unlocking mechanism has a second guide hole, and the guide tube is disposed in the second guide hole.
In the technical scheme, after the guide pipe is additionally arranged, the guide effect is better, so that the four-way headrest is more stable in X-direction adjustment; and the X-direction sliding guide structure is positioned below the two X-direction gear tubes of the guide tube, so that the whole X-direction sliding guide structure is arranged in a triangular shape, and the stability is good.
In another preferred embodiment of the present invention, the specific elastic connection between the unlocking steel wire and the seat body is: the seat body is provided with a steel wire return spring which enables the unlocking steel wire to be elastically connected with the seat body.
When the unlocking state is realized, the unlocking button is released, and the steel wire return spring is used for returning the unlocking steel wire to the locking state; and steel wire return spring's quantity is one, compares and sets up two steel wire return springs, and the resistance when this scheme is pressed the release button is littleer, makes the operator more laborsaving.
In another preferred embodiment of the present invention, the headrest housing includes a front housing and a rear housing, and the front housing and the rear housing are fixed by bolts; the front shell is provided with a front conical column, the rear shell is provided with a rear conical column corresponding to the front conical column, the front shell and the rear shell are fixedly connected together, and the rear end of the front conical column is abutted against the front end of the rear conical column.
The headrest shell consists of a front shell and a rear shell, so that a U-shaped headrest rod, an unlocking button, an X-direction sliding guide structure and an unlocking mechanism are convenient to install; and after the front conical column and the rear conical column are arranged, the strength of the four-direction headrest is further improved, and the deformation of the X-direction gear tube and the guide tube is reduced.
The utility model discloses an among another kind of preferred embodiment, U-shaped headrest pole includes two montants and a horizontal pole, and the middle part of montant has the kink, and the upper end of two montants is fixed with the both ends joint of horizontal pole respectively, all is equipped with locking breach groove on two montants.
The middle part of the vertical rod is provided with a bending part, so that the vertical rod conforms to human engineering and is more comfortable; the vertical rod and the transverse rod are arranged in a split mode, so that the unlocking mechanism can be conveniently installed on the U-shaped headrest rod.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic view of the outer shape structure of a seat four-way headrest of the present invention.
Fig. 2 is a schematic view of the internal structure of the four-way headrest of the present invention with the front housing removed.
Fig. 3 is an exploded view of the seat headrest according to the present invention.
Fig. 4 is a schematic structural diagram of the unlocking mechanism of the present invention, and for easy observation, the unlocking mechanism casing is not shown in the figure.
Fig. 5 is a sectional view a-a of fig. 4, showing the Z-slide sleeve omitted for ease of viewing.
Reference numerals in the drawings of the specification include: the headrest comprises a headrest shell 100, a front shell 110, a rear shell 120, a mounting column 121, a rear tapered column 122, a U-shaped headrest rod 200, a vertical rod 210, a locking notch groove 211, a cross rod 220, an unlocking button 300, an unlocking mechanism 400, a seat body 410, a first guide hole 411, a second guide hole 412, a wedge-shaped block 413, an unlocking steel wire 420, an inclined guide section 421, a cross rod part 422, a steel wire return spring 430, a Z-direction sliding sleeve 440, a transverse seam groove 441, a sliding groove 442, a bolt 450, a bolt return spring 460, an unlocking mechanism shell 470, a sliding sleeve mounting hole 471, a button support 480, a sliding column 481, an X-direction sliding guide structure 500, an X-direction shift pipe 510, a bolt clamping groove 511 and a guide pipe 520.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "vertical", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, mechanically or electrically connected, or may be connected between two elements through an intermediate medium, or may be directly connected or indirectly connected, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.
The utility model provides a seat quadriversal headrest, as shown in fig. 1-4, in a preferred embodiment of the utility model, it includes headrest shell 100, U-shaped headrest pole 200, release button 300, can carry out the X of X removal to the sliding guide structure 500 along with headrest shell 100 relative U-shaped headrest pole 200 and can carry out the release mechanism 400 of Z removal along with headrest shell 100 relative U-shaped headrest pole 200. The four-way headrest has a locked state and an unlocked state, the unlocking button 300 is pressed, the four-way headrest is in the unlocked state, the Z-direction height adjustment and the X-direction front-back adjustment of the four-way headrest can be performed, the unlocking button 300 is released, and the four-way headrest is in the locked state.
The X-direction sliding guide structure 500 is installed in the headrest housing 100, and includes two parallel X-direction shift pipes 510 fixed to the headrest housing 100. The unlocking mechanism 400 is installed in the headrest housing 100 and can move in the X direction relative to the X direction shift pipe 510, the unlocking mechanism 400 includes a seat body 410, two Z direction sliding sleeves 440 are installed on the seat body 410 (indirectly installed on the seat body 410 through an unlocking structure housing 470 when being split set, and installed on the seat body 410 when being integrally set), two lock tongues 450, and an unlocking steel wire 420 directly or indirectly connected with the unlocking button 300.
Specifically, the seat body 410 has two first guide holes 411 arranged in the X direction, and the two X-direction shift pipes 510 are correspondingly inserted into the two first guide holes 411 one by one; the two lock tongues 450 are elastically connected with the base body 410 along the Z direction and are in intermittent clamping connection with the two X-direction gear shift pipes 510 in a one-to-one correspondence manner; the Z-direction sliding sleeve 440 is sleeved on the U-shaped headrest rod 200 and is clamped with the unlocking steel wire 420; the unlocking steel wire 420 is elastically connected with the seat body 410 along the Z direction and is intermittently clamped with the U-shaped headrest rod 200.
The specific structures of the lock tongue 450 and the unlock button 300 can be the ones disclosed in CN104002714B, and are not described herein for the prior art; the principle of the unlocking steel wire 420 interacting with the locking tongue 450 to unlock and lock is similar to that disclosed in CN104002714B, and is not described in detail.
In a locking state, the unlocking steel wire 420 is fixedly clamped with the U-shaped headrest rod 200, and the lock tongue 450 is fixedly clamped with the X-direction gear tube 510; in the unlocked state, the unlocking wire 420 is disengaged from the U-shaped headrest rod 200, so that the headrest housing 100 can perform Z-direction movement, i.e., height position adjustment, relative to the U-shaped headrest rod 200 through the unlocking mechanism 400; in addition, in the unlocked state, the latch 450 is also disengaged from the X-direction shift pipe 510, so that the headrest housing 100 can move in the X-direction relative to the unlocking structure through the X-direction shift pipe 510, that is, can move in the X-direction relative to the U-shaped headrest rod 200, that is, can adjust the front and rear positions.
When the four-way headrest is used, the four-way headrest is installed on a seat through the U-shaped headrest rod 200 and is in a locked state in a normal state; the person presses the unlock button 300 without loosing his hand, and the four-way headrest is in the unlocked state.
In the unlocked state, a person can move the four-way headrest in the Z direction (i.e., adjust the high-low position of the four-way headrest), and the headrest housing 100 in the four-way headrest performs the up-and-down Z-direction movement along the U-shaped headrest rods 200 by the unlocking mechanism 400 connected thereto. When the four-way headrest is adjusted to a designated height, the unlocking button 300 is released, the unlocking steel wire 420 is reset and is clamped and fixed with the U-shaped headrest rod 200, and meanwhile, the locking bolt 450 is clamped and fixed with the X-direction gear tube 510, so that the four-way headrest is in a locked state.
In the unlocked state, a user can also move the four-way headrest in the X direction (i.e., adjust the front and rear positions of the four-way headrest), and the headrest housing 100 in the four-way headrest pushes the X-direction shift pipe 510 fixedly connected thereto to move in the X direction along the axial direction of the first guide hole 411. When the four-way headrest is adjusted to a designated front-rear position, the unlock button 300 is released and the four-way headrest is in a locked state.
The process that the four-way headrest adjusted in Z direction and X direction after specifically unlocking and the locking process are the same as those in the prior art, which is not the point of the invention of the present invention, and are not repeated herein, for example, the adjustment process disclosed in CN 104002714B.
In the four-way headrest of the present invention, the X-direction sliding guide structure 500 comprises two X-direction shift tubes 510 arranged in parallel, and when the four-way headrest is impacted from both sides, the four-way headrest will not be inclined, so that the four-way headrest has good stability; and the number of the locking tongues 450 is two, and when one is damaged, the other can be used continuously, so that the four-way headrest can still be adjusted in the X direction, and the service life of the four-way headrest is prolonged.
As shown in fig. 3, in another preferred embodiment of the present invention, a transverse slot 441 is provided on the Z-direction sliding sleeve 440 to engage with the unlocking steel wire 420, so that the unlocking steel wire 420 engages with the Z-direction sliding sleeve 440; a plurality of locking notch grooves 211 which are arranged along the Z direction and are intermittently clamped with the unlocking steel wire 420 are arranged on the two vertical rods 210 of the U-shaped headrest rod 200 at intervals; the two X-direction shift tubes 510 are provided with a plurality of bolt clamping grooves 511 which are arranged along the X direction and are in intermittent clamping connection with the bolts 450.
In the locked state, the unlocking steel wire 420 is fixed to the locking notch groove 211 of the U-shaped headrest rod 200 in a clamping manner, and the latch 450 is fixed to the latch slot 511 of the X-direction shift lever 510 in a clamping manner. In the unlocked state, the unlocking steel wire 420 is separated from the locking notch groove 211 of the U-shaped headrest rod 200, and the latch 450 is separated from the latch catching groove 511 of the X-direction shift lever 510.
As shown in fig. 3, in another preferred embodiment of the present invention, the headrest housing 100 is a plastic member, which includes a front housing 110 and a rear housing 120, and the front housing 110 and the rear housing 120 are fastened and then bolted together; the headrest housing 100 has two through-holes at the bottom thereof, through which the lower portions of the two vertical rods 210 of the U-shaped headrest rods 200 are located. The front shell 110 and the rear shell 120 are both provided with mounting columns 121, and the front end and the rear end of the X-direction shift pipe 510 are respectively sleeved on the mounting columns 121 of the front shell 110 and the rear shell 120, so that the X-direction shift pipe 510 is fixedly connected with the headrest shell 100.
As shown in fig. 3, in another preferred embodiment of the present invention, a rear tapered pillar 122 is disposed on the rear housing 120, a front tapered pillar (not shown) corresponding to the rear tapered pillar 122 is disposed on the front housing 110, and after the front housing 110 and the rear housing 120 are fixedly connected together, the rear end of the front tapered pillar abuts against the front end of the rear tapered pillar 122. Thereby increasing the strength and reducing the deformation of the headrest housing 100.
As shown in fig. 3, in another preferred embodiment of the present invention, the U-shaped headrest rod 200 comprises two vertical rods 210 and a horizontal rod 220, the middle parts of the two vertical rods 210 are both provided with bending parts, and the upper ends of the two vertical rods 210 are respectively fixed to the two ends of the horizontal rod 220 in a clamping manner. The middle part of the vertical rod 210 is provided with a bending part, so that the human engineering is met, and the comfort level is improved; the vertical bars 210 and the horizontal bars 220 are arranged separately, so that the unlocking mechanism 400 can be conveniently installed on the U-shaped headrest rod 200.
As shown in fig. 2 and 3, in another preferred embodiment of the present invention, the unlocking mechanism 400 further includes a button holder 480 abutting against the unlocking button 300, and the unlocking wire 420 is fixedly connected to the button holder 480, and as shown in fig. 5, the unlocking wire 420 has a cross bar portion 422 engaged with the button holder 480, so that when the unlocking button 300 is pressed, the unlocking button 300 moves the unlocking wire 420 in a left-rear direction through the button holder 480. As shown in fig. 4, the button bracket 480 is provided with a sliding column 481 arranged obliquely, and the Z-direction sliding sleeve 440 on the right side is provided with a sliding groove 442 matched with the sliding column 481; when the unlock button 300 is pressed, the button bracket 480 can slide in the left and right directions with respect to the housing 410 through the sliding post 481 and the sliding groove 442.
As can be seen from fig. 5, in another preferred embodiment of the present invention, the unlocking steel wire 420 has two oblique guiding sections 421 parallel to the sliding slot 442, two oblique guiding slots matched with the two oblique guiding sections 421 are correspondingly disposed on the left and right portions of the seat body 410, the oblique guiding slots are formed by two wedge blocks 413 oppositely disposed on the seat body 410, and preferably, the two wedge blocks 413 are staggered. The seat body 410 is provided with a steel wire return spring 430 which is positioned behind the unlocking steel wire 420, and the steel wire return spring 430 elastically connects the unlocking steel wire 420 with the seat body 410; the wire return spring 430 is used to return the unlocking wire 420 after the unlocking button 300 is released.
When the unlocking button 300 is pressed, the unlocking wire 420 moves leftward and compresses the wire return spring 430 to move backward (in a left-rear direction indicated by an arrow in fig. 5) under the action of the inclined guide groove; the unlocking wire 420 is separated from the locking notch groove 211 of the U-shaped headrest rod 200 after moving backward; meanwhile, when the unlocking steel wire 420 moves in the left-rear direction, the unlocking steel wire acts on the locking tongue 450 to compress the locking tongue return spring 460, so that the locking tongue 450 moves downwards, and the locking tongue 450 is separated from the locking tongue clamping groove 511 of the X-direction gear shifting pipe 510.
As shown in fig. 3, in another preferred embodiment of the present invention, the unlocking mechanism 400 further includes an unlocking mechanism housing 470, and the seat body 410 is mounted on the unlocking mechanism housing 470 and is fastened and fixed thereto; the left side and the right side of the unlocking mechanism shell 470 are provided with sliding sleeve mounting holes 471, and the two Z-direction sliding sleeves 440 are correspondingly clamped in the sliding sleeve mounting holes 471 one to one.
As shown in fig. 3, in another preferred embodiment of the present invention, the X-direction sliding guide structure 500 further includes a guide tube 520 fixedly connected to the headrest housing 100, and the front and rear ends of the guide tube 520 are respectively sleeved on the mounting posts 121 of the front housing 110 and the rear housing 120; the guide tube 520 is disposed parallel to and below the X-direction shift lever 510, the seat body 410 of the unlocking mechanism 400 has a second guide hole 412, and the guide tube 520 is inserted into the second guide hole 412. The two X-direction shift tubes 510 and the guide tube 520 make the whole X-direction sliding guide structure 500 in a triangle shape, and the triangle has good stability.
It should be noted that parts not disclosed in this specification may all adopt the prior art, such as disclosed in CN 104002714B.
In the description herein, reference to the description of the terms "preferred embodiment," "one embodiment," "some embodiments," "an example," "a specific example" or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A seat four-way headrest comprises a headrest shell, a U-shaped headrest rod, an unlocking button, an X-direction sliding guide structure capable of moving along with the headrest shell in an X direction relative to the U-shaped headrest rod, and an unlocking mechanism capable of moving along with the headrest shell in a Z direction relative to the U-shaped headrest rod, wherein the four-way headrest has a locking state and an unlocking state, the unlocking button is pressed, the four-way headrest is in the unlocking state, the unlocking button is released, and the four-way headrest is in the locking state; the method is characterized in that:
the X-direction sliding guide structure is arranged in the headrest shell and comprises two X-direction gear tubes which are arranged in parallel and fixedly connected with the headrest shell;
the unlocking mechanism is installed in the headrest shell and can move in the X direction relative to the X-direction gear tube, and comprises a seat body, wherein two Z-direction sliding sleeves, two lock tongues and an unlocking steel wire directly or indirectly connected with the unlocking button are installed on the seat body; the base body is provided with two first guide holes arranged in the X direction, and the two X-direction gear pipes correspondingly penetrate through the two first guide holes one by one; the two lock tongues are elastically connected with the base body in the Z direction and are in intermittent clamping connection with the two X-direction gear pipes in a one-to-one correspondence manner; the Z-direction sliding sleeve is sleeved on the U-shaped headrest rod and is clamped with the unlocking steel wire; the unlocking steel wire is elastically connected with the seat body in the X direction and is in intermittent clamping connection with the U-shaped headrest rod;
when the lock is in the locked state, the unlocking steel wire is fixedly clamped with the U-shaped headrest rod, and the lock tongue is fixedly clamped with the X-direction gear tube;
when the lock is in the unlocking state, the unlocking steel wire is separated from the U-shaped headrest rod, and the lock tongue is also separated from the X-direction gear tube.
2. A seat four-way headrest according to claim 1, wherein the Z-direction sliding sleeve is provided with a transverse slot which is clamped with the unlocking steel wire, and the U-shaped headrest rod is provided with a plurality of locking notch slots which are arranged along the Z direction and are intermittently clamped with the unlocking steel wire;
when the lock is in the locked state, the unlocking steel wire is clamped and fixed with the locking notch groove on the U-shaped headrest rod;
and when the unlocking state is realized, the unlocking steel wire is separated from the locking notch groove of the U-shaped headrest rod.
3. A seat four-way headrest according to claim 1 or 2, wherein two X-direction shift tubes are respectively provided with a plurality of bolt clamping grooves which are arranged along the X direction and are in intermittent clamping connection with the bolts;
and when the lock is in the unlocking state, the lock tongue is separated from the lock tongue clamping groove of the X-direction gear tube.
4. A four-way headrest for seats according to claim 2, wherein said unlocking mechanism further comprises a button bracket connected in abutting contact with said unlocking button, said unlocking wire being fixedly connected to said button bracket; the button bracket is provided with obliquely arranged sliding columns, and one Z-direction sliding sleeve is provided with a sliding chute matched with the sliding column; and when the unlocking button is pressed, the button support can slide obliquely relative to the base body through the sliding column and the sliding groove.
5. A four-way headrest for seats according to claim 4, wherein said unlocking wire has two inclined guide sections parallel to the slide grooves, and two inclined guide grooves are correspondingly formed on said seat body for engaging with the two inclined guide sections; when the unlocking button is pressed, the unlocking steel wire can be separated from the U-shaped headrest rod under the action of the inclined guide groove.
6. A four-way headrest for seats according to claim 2, wherein said release mechanism further includes a release mechanism housing, said seat body being mounted on and snap-fitted to said release mechanism housing; the Z-direction sliding sleeve is also arranged on the unlocking mechanism shell.
7. A four-way headrest for seats according to claim 1, 2, 4, 5 or 6, wherein said X-direction sliding guide structure further comprises a guide tube fixedly connected to said headrest housing, said guide tube being disposed parallel to and below said X-direction shift position tube, said unlocking mechanism having a second guide hole, said guide tube being inserted into said second guide hole.
8. A four-way headrest for seats according to claim 7, wherein said unlocking wire is elastically connected to the seat body in a manner that: the seat body is provided with a steel wire return spring, and the steel wire return spring enables the unlocking steel wire to be elastically connected with the seat body.
9. A seat headrest according to claim 7, wherein said headrest housing includes a front shell and a rear shell, said front and rear shells being secured by bolts; the front shell is provided with a front conical column, the rear shell is provided with a rear conical column corresponding to the front conical column, the front shell is fixedly connected with the rear shell, and the rear end of the front conical column is abutted against the front end of the rear conical column.
10. A seat four-way headrest according to any one of claims 2, 4, 5 or 6, wherein the U-shaped headrest rod comprises two vertical rods and a cross rod, the middle parts of the vertical rods are provided with bent parts, the upper ends of the two vertical rods are respectively clamped and fixed with the two ends of the cross rod, and the two vertical rods are respectively provided with the locking notch grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921171159.4U CN210760371U (en) | 2019-07-24 | 2019-07-24 | Seat four-way headrest |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921171159.4U CN210760371U (en) | 2019-07-24 | 2019-07-24 | Seat four-way headrest |
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| CN210760371U true CN210760371U (en) | 2020-06-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113475887A (en) * | 2021-07-29 | 2021-10-08 | 恒林家居股份有限公司 | Chair with headrest |
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2019
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113475887A (en) * | 2021-07-29 | 2021-10-08 | 恒林家居股份有限公司 | Chair with headrest |
| CN113475887B (en) * | 2021-07-29 | 2023-12-26 | 恒林家居股份有限公司 | Chair with headrest |
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