CN218367522U

CN218367522U - Back-unlocked seat headrest

Info

Publication number: CN218367522U
Application number: CN202222514790.8U
Authority: CN
Inventors: 浦道北; 童杰; 张健; 周均; 邹玉龙
Original assignee: Chongqing Haosite Auto Parts Co ltd
Current assignee: Chongqing Haosite Auto Parts Co ltd
Priority date: 2022-09-22
Filing date: 2022-09-22
Publication date: 2023-01-24
Anticipated expiration: 2032-09-22

Abstract

The utility model provides a back-unlocked seat headrest, a headrest body is arranged on a seat through a headrest rod, and the height of the headrest body can be vertically adjusted on the headrest rod; the headrest rod is provided with a plurality of locking grooves, the seat headrest is also provided with an unlocking structure which can be connected with the locking grooves, the unlocking structure comprises a rotating rod and an unlocking piece which can be in plug-in fit with the locking grooves and is connected with a first spring, the rotating rod is rotatably connected with the headrest body, the first end of the rotating rod is provided with an operating part, and the second end of the rotating rod is abutted against the unlocking piece; the second end of the rotating rod enables the unlocking piece to act to be separated from the locking groove of the headrest rod by operating the operating part; the operating part is released, and the unlocking piece is inserted into the locking groove of the headrest rod under the action of the first spring. The utility model discloses set up the back at the headrest body with the operating portion, make the unblock piece action through the operating portion to unblock the headrest body, unblock convenient operation is particularly useful for unsuitable seat with the setting of release button at headrest body avris.

Description

Back-unlocked seat headrest

Technical Field

The utility model belongs to the seat headrest field, concretely relates to seat headrest of back unblock.

Background

A seat headrest (hereinafter, simply referred to as a headrest) is generally provided at an upper portion of a seat back, and an occupant of the seat rests the headrest on the headrest to improve head comfort. In order to adapt to different requirements of different passengers on the height of the headrest, the headrest is generally made into a structure with adjustable height, specifically, the headrest is installed on an automobile seat through a headrest rod, and a body of the headrest can vertically move on the headrest rod so as to adjust the height of the headrest body. The height-adjustable headrest comprises a common headrest with the height manually adjusted manually and an electric headrest with a headrest body driven by a driving mechanism to move vertically, and the common headrest is low in price and is used in many automobiles.

In the prior art, the unlocking button of most common headrests is arranged on the side of the headrest body. However, in some headrests in which the release button cannot be provided on the headrest body side, the release button needs to be provided on the back surface of the headrest body. For example, the sound box is arranged in the headrest body, and occupies a position, so that the button is difficult to arrange on the side of the headrest body; for example, the space outside the headrest body is insufficient, and people cannot stretch hands to the side of the headrest body to press the button. In view of the above, it is necessary to design a back-unlocked seat headrest.

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 seat headrest of back unblock.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the back-unlocked seat headrest comprises a headrest rod and a headrest body, wherein the headrest body is arranged on the seat through the headrest rod, and the height of the headrest body can be vertically adjusted on the headrest rod; the headrest rod is provided with a plurality of locking grooves which are arranged at intervals along the height direction of the headrest rod, the seat headrest is also provided with an unlocking structure which can be connected with the locking grooves, the unlocking structure comprises a rotating rod and an unlocking piece which can be in inserting fit with the locking grooves and is connected with a first spring, the rotating rod is rotatably connected with the headrest body through a pin shaft, the back of the headrest body is provided with an operation hole for manually operating the rotating rod, the first end of the rotating rod is provided with an operation part corresponding to the operation hole, and the second end of the rotating rod is abutted to the unlocking piece; the second end of the rotating rod can enable the unlocking piece to act to be separated from the lock groove of the headrest rod through pressing/externally pulling the operating part of the rotating rod, and the rotating rod and the unlocking piece can vertically move relative to the headrest rod along with the headrest body; the operating part of the rotating rod is released, and the unlocking piece can be inserted into the locking groove of the headrest rod under the action of the first spring.

Among the above-mentioned technical scheme, set up the back at the headrest body with the operating portion, make the action of unblock spare through the operating portion of pressing/outer pull rod, alright unblock, unblock convenient operation to the headrest body. The utility model discloses a seat headrest is particularly useful for and is unsuitable to set up the seat of release button at headrest body avris.

In a preferred embodiment of the present invention, the locking groove is provided on the back surface of the headrest rod, the operating portion of the rotating rod is pressed forward, and the second end of the rotating rod enables the unlocking member to move backward to be disengaged from the locking groove of the headrest rod; or the locking groove is arranged in front of the headrest rod, the operating part of the rotating rod is pulled backwards, and the second end of the rotating rod can enable the unlocking piece to move forwards to be separated from the locking groove of the headrest rod.

In the technical scheme, the lock groove is arranged on the back side and the front side of the headrest rod, and can be selected according to actual conditions.

In a preferred embodiment of the present invention, a second spring is provided between the rotating rod and the headrest body, and both ends of the second spring are respectively connected to the rotating rod and the headrest body.

Among the above-mentioned technical scheme, the piece that unlocks and bull stick set up independent first spring and second spring respectively, and the piece that unlocks resets under the effect of first spring, and the bull stick resets under the effect of second spring, and the mutual noninterference that resets of the piece that unlocks and bull stick, the reliability is higher.

In a preferred embodiment of the present invention, the unlocking member includes an unlocking plate that can be inserted into the lock groove, and an abutting plate that is fixedly connected to the unlocking plate and abuts against the second end of the rotating rod, and the abutting plate can slide in the direction of pressing/pulling the rotating rod.

In the technical scheme, the unlocking sheet is a thin plate part and is convenient to insert into the locking groove of the headrest rod; the abutting plate abuts against the second end of the rotating rod and plays a role in guiding the forward and backward movement of the unlocking piece.

The utility model discloses an among the preferred embodiment, unlocking structure still establishes on the headrest pole and can be on the headrest pole vertical gliding mechanism box body including the cover, headrest body and mechanism box body fixed connection, and the piece of deblocking is installed in the mechanism box body and can slide around in the mechanism box body, and the both ends of first spring are connected with piece of deblocking and mechanism box body respectively.

Among the above-mentioned technical scheme, install the deblocking piece through setting up the mechanism box body, the mechanism box body plays the guide effect to the seesaw of deblocking piece, compares and relies on first spring messenger deblocking piece back-and-forth movement when not setting up the mechanism box body, and this scheme makes the operation of deblocking piece reliable and stable, and can prolong unlocking structure's life.

In another preferred embodiment of the present invention, the mechanism box body is integrally injection molded, the rear end of the mechanism box body is open, and the front end of the mechanism box body has an open slot for the second end of the unlocking member and/or the rotating rod to extend out to make the two abut against each other.

Among the above-mentioned technical scheme, the integrative injection moulding processing cost of mechanism box body is low, and the rear end opening of mechanism box body is convenient for install the unlocking piece in the mechanism box body.

In another preferred embodiment of the present invention, the mechanism box body is fixedly connected with a guide sleeve which is sleeved on the headrest rod and is vertically and slidably connected with the headrest rod.

Among the above-mentioned technical scheme, the sliding sleeve and the vertical sliding connection of headrest pole, the sliding sleeve plays the guide effect, can avoid the mechanism box body to rock on the headrest pole, makes the mechanism box body more firm with being connected of headrest pole.

In another preferred embodiment of the present invention, the unlocking structure further includes a mechanism housing with an opening at the front end, the mechanism box is installed in the mechanism housing and is vertically slidably connected to the mechanism housing, and the headrest rod is fixedly connected to the mechanism housing and the upper portion of the headrest rod is located in the mechanism housing.

In the technical scheme, the mechanism housing fixedly connected with the headrest rod is arranged to accommodate the mechanism box body, so that the back of the seat headrest is more attractive.

In another preferred embodiment of the present invention, the number of the headrest rods is two, and the outer walls of the two headrest rods are provided with locking grooves.

Among the above-mentioned technical scheme, the headrest body is connected with the seat through two montants for the headrest pole is more firm with being connected of seat.

In another preferred embodiment of the present invention, the left and right sides of the inside of the headrest body are respectively provided with a sound box, and the wiring harness of the sound box passes through the headrest body and extends outward.

Among the above-mentioned technical scheme, carry on the stereo set in the headrest body, compare and install the stereo set on the control panel of car, can promote the stereo set quality and the privacy in the car.

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 rear side perspective view of a back unlocked seat headrest of an embodiment.

Fig. 2 is a schematic view of the headrest body of the embodiment exploded with the unlocking mechanism and the headrest rods.

Fig. 3 is an exploded view of the back unlocked seat headrest of the embodiment.

Fig. 4 is a schematic view of the embodiment of the lever, unlocking member, guide sleeve and headrest rod connection.

Reference numerals in the drawings of the specification include: the headrest comprises a headrest body 10, a headrest front part 11, a headrest rear part 12, a sound 13, a sound harness 131, a headrest rod 20, a locking groove 21, a connecting metal plate 30, a rotating rod 41, an operating part 411, a pin shaft 412, a second spring 413, an unlocking piece 42, an unlocking piece 421, an abutting plate 422, a first spring 423, a mechanism box body 43, an opening groove 431, a positioning taper sleeve 432, a guide sleeve 44, a mechanism outer cover 45 and a headrest rod fixing pin 22.

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 accompanying drawings are exemplary only for 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", and the like, indicate orientations or positional relationships based on the orientations or positional relationships 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 back unblock seat headrest, as shown in fig. 1 in a preferred embodiment of the utility model, this seat headrest includes headrest rods 20 and headrest body 10, and headrest body 10 passes through headrest rods 20 and installs on car seat, and headrest body 10 can be on headrest rods 20 vertical height-adjusting. In this embodiment, the number of the headrest rods 20 is two, the two headrest rods 20 are vertically arranged and located at the rear side of the headrest body 10, the two headrest rods 20 are fixedly connected with the connecting metal plate 30, and the two headrest rods 20 are fixedly mounted on the car seat through the connecting metal plate 30.

As shown in fig. 2-4, the two headrest rods 20 have a plurality of locking grooves 21 spaced apart from each other along the height direction thereof, for example, the locking grooves 21 are formed on the back of the headrest rods 20, and the seat headrest of the present invention further has an unlocking structure capable of being connected to the locking grooves 21 of the two headrest rods 20 at the same time. Specifically, the unlocking structure includes a rotating rod 41 and an unlocking piece 42 connected with a first spring 423 and capable of being in plug-in fit with the lock groove 21, and the unlocking piece 42 can be manually switched between a locked state and an unlocked state by operating the rotating rod 41.

The rotating rod 41 is arranged in the headrest body 10, the rotating rod 41 is rotatably connected with the headrest body 10 through a vertically arranged pin shaft 412, a first end (left end shown in fig. 4) of the rotating rod 41 is provided with an operating part 411, the back surface of the headrest body 10 is provided with an operating hole corresponding to the operating part 411, the operating part 411 is embedded in the operating hole, and the back surface of the headrest body 10 is also provided with an opening corresponding to a second end (right end shown in fig. 4) of the rotating rod 41. The unlocking member 42 is located behind the second end of the rotating rod 41, and the second end of the rotating rod 41 is always abutted against the front end of the unlocking member 42 by the first spring 423.

With such a technical solution, in a normal state, under the elastic force of the first spring 423, the unlocking member 42 is inserted into the locking grooves 21 of the two headrest rods 20 to lock the headrest body 10, and the headrest body 10 cannot move vertically relative to the headrest rods 20. When the height of the headrest body 10 needs to be adjusted, the user presses the operating portion 411 of the rotating lever 41 forward by hand to rotate the second end of the rotating lever 41 backward around the pin 412, and the second end of the rotating lever 41 overcomes the elastic force of the first spring 423 to move the unlocking member 42 backward to disengage from the locking grooves 21 of the two headrest rods 20, thereby unlocking the headrest body 10. Then, the headrest body 10 can be vertically moved to a proper height with respect to the headrest rods 20, and then the operating portion 411 is released, the second end of the rotating rod 41 is rotated forward around the pin shaft 412 under the elastic force of the first spring 423, the unlocking member 42 moves forward, and the unlocking member 42 is inserted into the locking grooves 21 of the two headrest rods 20, thereby completing the locking of the headrest body 10.

When the operating portion 411 is released, the unlocking member 42 moves forward and is not inserted into the lock groove 21, but abuts against the outer wall of the headrest rod 20, and at this time, the headrest body 10 moves downward due to the weight of the headrest body 10, and the unlocking member 42 is inserted into the lock groove 21 immediately below the unlocking member under the elastic force of the first spring 423.

It should be noted that the locking groove 21 may also be arranged in front of the headrest rod 20, in this case, the unlocking member 42 and the rotating rod 41 are elastically connected through the first spring 423, and when one pulls the operating portion 411 of the rotating rod 41 backward, the second end of the rotating rod 41 rotates forward around the pin 412, and under the pulling force of the first spring 423, the unlocking member 42 moves forward to disengage from the locking groove 21 of the headrest rod 20, so as to unlock the headrest body 10.

As shown in fig. 2 to 4, in this embodiment, the unlocking structure further includes a mechanism box 43 that is sleeved on the headrest rod 20 and can slide vertically on the headrest rod 20, and the headrest body 10 is fixedly connected to the mechanism box 43, for example, the mechanism box 43 is fixedly connected to the headrest body 10 through a bolt. The unlocking piece 42 is installed in the mechanism box body 43 and can slide back and forth in the mechanism box body 43, for example, the abutting plate 422 of the unlocking piece 42 is connected with the mechanism box body 43 in a sliding manner, and two ends of the first spring 423 are respectively fixedly connected with the mechanism box body 43 and the unlocking piece 42.

After the mechanism case 43 is provided, the pressing operation portion 411 unlocks the locking of the headrest body 10, and the mechanism case 43 is vertically moved on the headrest rod 20 to adjust the headrest body 10 to a proper position, and since the unlocking member 42 is installed in the mechanism case 43, the unlocking member 42 vertically moves together with the mechanism case 43 at random.

As shown in fig. 4, in another preferred embodiment, a second spring 413 is provided between the rotary rod 41 and the headrest body 10, two ends of the second spring 413 are respectively connected to the rotary rod 41 and the headrest body 10, for example, the rear end of the second spring 413 is fixed to the front end of the operation portion 411. The rotating lever 41 and the unlocking member 42 are provided with independent return springs, respectively, and the rotating lever 41 can be returned by the second spring 413 after the operating portion 411 is released.

As shown in fig. 4, in another preferred embodiment, the unlocking piece 42 includes an unlocking piece 421 which can be inserted into the locking groove 21, and an abutting plate 422 which is fixed to the unlocking piece 421 and abuts against the second end of the rotating rod 41, and the abutting plate 422 can slide in a direction of pressing/pulling the rotating rod 41 outward (i.e., a front-rear direction). Specifically, the unlocking piece 421 extends in the width direction of the headrest body 10, and both ends of the unlocking piece 421 are inserted into the lock grooves 21 of the headrest rod 20, respectively; the abutting plate 422 is fixedly connected with the middle part of the unlocking sheet 421 and is located between the two headrest rods 20, the abutting plate 422 is in a triangular structure with a large back and a small front, and the front end of the abutting plate 422 abuts against the second end of the rotating rod 41.

As shown in fig. 4, it is further preferable that the number of the first springs 423 is two, two first springs 423 are respectively disposed on the left and right sides of the abutting plate 422, the rear end of the first spring 423 is fixedly connected to the unlocking piece 421, and the front end of the first spring 423 is fixedly connected to the mechanism case 43.

In another preferred embodiment, as shown in fig. 2 and 3, the mechanism case 43 is integrally injection-molded, and the rear end of the mechanism case 43 is opened, thereby facilitating the installation of the unlocking member 42 in the mechanism case 43; the front end of the mechanism box 43 has an opening groove 431 through which the second end of the unlocking member 42 and/or the rotating rod 41 extends to abut against each other, for example, in a normal state, the abutting plate 422 of the unlocking member 42 extends from the opening groove 431 to abut against the second end of the rotating rod 41.

In another preferred embodiment, as shown in fig. 3 and 4, a guide sleeve 44 is fixed in the mechanism box 43, which is sleeved on the headrest rods 20 and is connected with the headrest rods 20 in a vertically sliding manner, two guide sleeves 44 are respectively arranged on the two headrest rods 20, and the rear sides of the two guide sleeves 44 are provided with a notch through which the unlocking piece 421 is inserted into the locking groove 21 of the headrest rods 20.

As shown in fig. 1 to 3, in another preferred embodiment, the unlocking structure further includes a mechanism housing 45 with an opening at the front end, the mechanism housing 45 is integrally injection-molded, the mechanism box body 43 is installed in the mechanism housing 45, the headrest rod 20 is fixedly connected with the mechanism housing 45, and the upper portion of the headrest rod 20 is located in the mechanism housing 45. As shown in fig. 2 and 4, the headrest rods 20 are connected to the mechanism cover 45 in such a manner that the upper ends of the two headrest rods 20 sequentially pass through the through hole at the bottom of the mechanism cover 45, the through hole at the bottom of the mechanism case 43, the guide bush 44, and the opening at the top of the mechanism case 43 from bottom to top and extend toward the top of the mechanism cover 45, and the two headrest rod fixing pins 22 pass through the mechanism cover 45 in the front-rear direction and are inserted into the upper portions of the two headrest rods 20, respectively.

In another preferred embodiment, as shown in fig. 1 and 3, one sound 13 is provided on each of the left and right sides inside the headrest body 10, and the harness 131 of the sound extends outward through the headrest body 10. In the present embodiment, the headrest body 10 includes a headrest front portion 11 and a headrest rear portion 12, an accommodation space for accommodating the audio 13 is provided between the headrest front portion 11 and the headrest rear portion 12, and as shown in fig. 1, a harness 131 of the audio is fixed to the connecting metal plate 30 through the headrest rear portion 12.

In another preferred embodiment, a headrest rear case with an opening at the front end, to which the mechanism cover 45 is fixed, may be provided outside the mechanism cover 45 for aesthetic reasons, and the mechanism cover 45 is located in the headrest rear case.

In the description of the present specification, 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 present 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

1. The back-unlocked seat headrest comprises a headrest rod and a headrest body, wherein the headrest body is arranged on a seat through the headrest rod, and the height of the headrest body can be vertically adjusted on the headrest rod; the headrest rod is provided with a plurality of locking grooves which are arranged at intervals along the height direction of the headrest rod, the seat headrest is also provided with an unlocking structure which can be connected with the locking grooves, the unlocking structure comprises a rotating rod and an unlocking piece which can be in plug fit with the locking grooves and is connected with a first spring, the rotating rod is rotatably connected with the headrest body through a pin shaft, the back of the headrest body is provided with an operation hole for manually operating the rotating rod, the first end of the rotating rod is provided with an operation part corresponding to the operation hole, and the second end of the rotating rod is abutted to the unlocking piece;

the second end of the rotating rod can enable the unlocking piece to act to be separated from the lock groove of the headrest rod by pressing/outwards pulling the operating part of the rotating rod through the operating hole, and the rotating rod and the unlocking piece can vertically move relative to the headrest rod along with the headrest body; the operating part of the rotating rod is loosened, and the unlocking piece can be inserted into the locking groove of the headrest rod under the action of the first spring.

2. The back unlocked seat headrest of claim 1, wherein the locking slot is provided on a back surface of the headrest rod, the operating portion of the rotating rod is pressed forward, and the second end of the rotating rod enables the unlocking member to be operated backward to be disengaged from the locking slot of the headrest rod;

or the locking groove is arranged in front of the headrest rod, the operating part of the rotating rod is pulled backwards, and the second end of the rotating rod can enable the unlocking piece to move forwards to be separated from the locking groove of the headrest rod.

3. The back unlocked seat headrest of claim 1, wherein a second spring is disposed between the rotary rod and the headrest body, and two ends of the second spring are respectively connected to the rotary rod and the headrest body.

4. The back unlocked seat headrest of claim 1, wherein the unlocking member comprises an unlocking tab insertable into the locking slot and an abutment plate fixedly secured to the unlocking tab and abutting against the second end of the rotating rod, the abutment plate being slidable in a direction of pressing/pulling the rotating rod outward.

5. The back unlocked seat headrest according to any one of claims 1-4, wherein the unlocking structure further comprises a mechanism case sleeved on the headrest rod and vertically slidable on the headrest rod, the headrest body is fixedly connected with the mechanism case, the unlocking member is installed in the mechanism case and can slide back and forth in the mechanism case, and two ends of the first spring are respectively connected with the unlocking member and the mechanism case.

6. The back unlocked seat headrest of claim 5, wherein the mechanism housing is integrally injection molded, the rear end of the mechanism housing is open, and the front end of the mechanism housing has an open slot through which the second end of the unlocking member and/or the rotating lever extends to abut.

7. The back-unlocked seat headrest of claim 5, wherein a guide sleeve is fixedly secured to the mechanism housing and slidably coupled to the headrest rods in a vertical direction.

8. The back unlocked seat headrest of claim 5, wherein the unlocking structure further comprises a mechanism housing with an open front, the mechanism cartridge being mounted in the mechanism housing, the headrest rod being fixedly secured to the mechanism housing and an upper portion of the headrest rod being located in the mechanism housing.

9. The back unlocked seat headrest according to any one of claims 1 to 4, wherein the number of the headrest rods is two, and the lock grooves are provided on outer walls of both the headrest rods.

10. The back unlocked seat headrest according to any one of claims 1 to 4, wherein one sound is provided on each of left and right sides inside the headrest body, and the harness of the sound extends outward through the headrest body.