Manual four-way headrest

By designing a manual four-way headrest including a headrest pole, a lining block, a support component and a locking mechanism, the problems of the complex structure of the traditional manual four-way headrest and troublesome adjustment of the user are solved, and convenient and safe four-way adjustment is achieved.

CN222859285UActive Publication Date: 2025-05-13ADIENT (CHONGQING) AUTOMOTIVE COMPONENTS CO LTD
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Patent Information

Application Number
CN202422007337.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-19
Publication Date
2025-05-13
Estimated Expiration
2034-08-19

AI Technical Summary

Technical Problem

The traditional manual four-way headrest has a complex structure, numerous parts, poor assembly convenience, and has troublesome user adjustment process.

Method used

A manual four-way headrest is designed, which includes a headrest rod, a liner block, a support member and a locking mechanism. Four-way adjustment is achieved through the intersecting and matching of the headrest rod, lining block and support components, and a locking bar is used to achieve four-way locking, making adjustments easy.

Benefits of technology

It realizes four-way adjustment with low cost, simple structure and convenient installation, significantly improves operational convenience and user experience, and meets various needs while ensuring the safety of adjustment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a manual four-way headrest which comprises a headrest rod used for being connected with a backrest. The headrest rod is sleeved with the lining block in an up-down sliding mode, and a first mounting hole penetrating in the front-back direction of the headrest is formed in the lining block; the supporting component is provided with a guide column extending in the front-back direction of the headrest, and the guide column is assembled in the first mounting hole in a front-back sliding mode; the headrest body is fixedly mounted at the front end of the supporting component; the locking mechanism comprises a locking strip, an elastic element and an unlocking button, the locking strip is slidably mounted in the width direction of the lining block, the elastic element is arranged between the locking strip and the lining block, the unlocking button is used for controlling the locking strip to slide, and a first locking part and a second locking part are arranged on the locking strip; under the elastic force of the elastic element, the first locking part and the second locking part can limit the front-back sliding of the guide column and the up-down sliding of the lining block; and when the unlocking button is pressed, the movement limitation can be relieved. The device has the advantages of being simple and compact in structure, convenient to install and low in cost.
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Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, in particular to a manual four-way headrest. Background Art

[0002] With the popularity of cars in daily life, vehicle safety and riding comfort are increasingly valued by consumers. In order to support the heads of drivers and passengers, relieve riding fatigue, or protect the heads and necks of drivers and passengers, it is necessary not only to adjust the headrest to a suitable height but also to adjust the headrest to a suitable front and rear position according to the different body shapes and postures of the drivers and passengers to ensure riding comfort and safety. Therefore, most car headrests are currently four-way.

[0003] Four-way headrests are divided into two types: electric adjustment and manual adjustment. At present, the manual four-way headrest has the disadvantages of complex internal structure, numerous parts and poor assembly convenience because its height and front and rear adjustment are controlled by different locking mechanisms. At the same time, it is also troublesome for users to manually adjust the headrest. Utility Model Content

[0004] In view of this, the utility model provides a manual four-way headrest, which aims to solve the problem of complex structure of traditional manual four-way headrest.

[0005] To achieve the above purpose, the technical solution of the utility model is as follows:

[0006] A manual four-way headrest, characterized by comprising:

[0007] A headrest rod, which is used to be fixedly connected to the upper end of the backrest;

[0008] An inner lining block is slidably mounted on the headrest rod, and a first mounting hole is provided on the inner lining block that penetrates along the front-rear direction of the headrest;

[0009] A support component, on which a guide column extending in the front-rear direction of the headrest is provided, and the guide column can be slidably assembled in the first mounting hole in the front-rear direction;

[0010] A headrest body, which is fixedly mounted on the front end of the support component; and

[0011] A locking mechanism, the locking mechanism comprising a locking strip slidably installed along the width direction of the inner lining block, an elastic element arranged between the locking strip and the inner lining block, and an unlocking button for controlling the sliding of the locking strip, the locking strip being provided with a first locking portion and a second locking portion; under the elastic force of the elastic element, the first locking portion and the second locking portion can be locked on the guide column and the headrest rod respectively to limit the forward and backward sliding of the guide column and the upward and downward sliding of the inner lining block; pressing the unlocking button can push the locking strip to slide to release the restriction of the first locking portion and the second locking portion on the movement of the guide column and the inner lining block.

[0012] With the above structure, the headrest rod, the lining block and the rear end of the support component can be interlaced and matched to form four-way adjustment, which has low cost and simple structure. Four-way locking is achieved through a locking strip, which is convenient for adjustment.

[0013] Preferably, the support component has a mounting plate at the front and a guide column extending horizontally backward at the rear, the first locking portion is a toothed structure arranged on the locking strip, and the guide column is provided with a rack engaged with the toothed structure. With the above structure, the front and rear adjustment of the headrest is achieved through the engagement of the toothed structure, and the adjustment is stable and convenient.

[0014] Preferably, the second locking portion is a strip-shaped protrusion arranged on the locking strip, and the headrest rod is provided with a strip-shaped groove arrayed to match the strip-shaped protrusion. With the above structure, the adjustment is stable and convenient, and the shaking amplitude of the headrest is small.

[0015] Preferably, the locking strip is provided with a second mounting hole penetrating in the vertical direction of the headrest, the headrest rod is installed in the second mounting hole, the second locking portion is located on the side wall of the second mounting hole away from the unlocking button, the number of the guide posts is 4, and they are installed symmetrically with respect to the locking strip, an escape groove is provided on the upper side of the locking strip, the guide post above the locking strip is installed in the escape groove, and the first locking portion is located on the side wall of the escape groove away from the unlocking button. The above structure is convenient and compact to install.

[0016] Preferably, a first limit buckle is provided at the rear end of the guide column, and when the headrest body is adjusted to the frontmost position, the first limit buckle clamps the inner lining block. With the above structure, the front and rear adjustment range of the headrest is limited.

[0017] As a preferred embodiment, a locking pin is inserted into the upper end of the headrest rod in a direction perpendicular to the axis, the length of the locking pin is greater than the diameter of the headrest rod, a sliding groove is provided in the height direction on the inner lining block, and the locking pin cooperates with the sliding groove to limit the up and down adjustment distance of the headrest body. The above structure is simple and limits the up and down adjustment range of the headrest.

[0018] Preferably, the elastic element is a reset spring, which is installed between the locking strip and the inner lining block to reset the locking strip. With the above structure, when the headrest is adjusted to a suitable position, the headrest can be locked immediately by releasing the button, which has a simple structure and low cost.

[0019] Preferably, the unlocking button includes a button and a button bracket, the button bracket is fixedly mounted on the rear cover facing the side of the locking strip, the button is mounted on the button bracket and abuts against the locking strip, the end surface of the locking strip close to the unlocking button is provided with an extension along the width direction, the extension is used to prevent the button from abutting against the side of the locking strip after the headrest body is adjusted forward and backward, the button is provided with two upper and lower abutment columns, the two abutment columns are used to prevent the button from abutting against the side of the locking strip after the headrest body is adjusted upward and downward. The above structure ensures that the button abuts against the locking strip, and the adjustment is convenient.

[0020] As a preferred embodiment, a spring sheet is installed in the gap between the guide column and the inner lining block, and the spring sheet is used to fill the installation gap. With the above structure, the adjustment is smooth and the shaking amplitude of the headrest is small.

[0021] Preferably, the end surface of the locking strip away from the unlocking button is provided with a second limit buckle, and when the locking strip is reset, the second limit buckle clamps the inner lining block. The above structure is adopted to prevent the locking part from being damaged.

[0022] Compared with the prior art, the beneficial effects of the utility model are:

[0023] 1. The headrest rod, lining block and the rear end of the support component can be interlaced to form a four-way adjustment, which has the technical advantages of low cost, simple and compact structure and easy installation. At the same time, based on this structure, the headrest can be unlocked and locked in the four directions of front, back, up and down through only one locking mechanism. Compared with the traditional manual four-way adjustment, the operation convenience and user experience have been significantly improved.

[0024] 2. A longer adjustment range is set, and limit components are provided for up and down, front and back adjustments to meet a variety of needs while ensuring the safety of adjustment.

[0025] 3. Install spring sheets to fill the installation gap, make the adjustment stable, and reduce the shaking amplitude of the headrest. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is an exploded view of the utility model;

[0027] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0028] Figure 3 It is a schematic diagram of the external structure of the utility model;

[0029] Figure 4 A schematic diagram showing the first locking portion 09;

[0030] Figure 5 A schematic diagram showing the second locking portion 10;

[0031] Figure 6 A schematic diagram showing the first buckle 02d and the spring sheet 14;

[0032] Figure 7 A schematic diagram showing the second buckle 07d;

[0033] Figure 8 A schematic diagram showing the button 11;

[0034] Fig. 9 It is a schematic diagram of the structure of the locking strip 07. DETAILED DESCRIPTION

[0035] The utility model is further described below in conjunction with embodiments and drawings.

[0036] like Figure 1 and 3 As shown, a manual four-way headrest, the core components of which mainly include a headrest rod 01, a support component 02, an inner lining block 03, a locking mechanism 04 and a headrest body A. The lower part of the headrest rod 01 is used to be fixedly connected to the upper end of the backrest of the car seat. Figure 2 It can be seen that the inner lining block 03 is close to a rectangular block structure, and its left and right ends can be slidably mounted on the headrest rod 01. The lower part of the inner lining block 03 is provided with a first mounting hole 03b that runs through the headrest in the front-to-back direction. The rear part of the support component 02 is provided with guide columns 02b that extend in the front-to-back direction of the headrest. The number of guide columns 02b is consistent with the number of first mounting holes 03b, and they are slidably mounted in the first mounting holes 03b one by one. In this embodiment, please refer to the attached Figure 1 The headrest body A is composed of a support frame plate 06 and a flexible foam 05 covering the surface of the support frame plate 06 , wherein the support frame plate 06 is fixedly installed at the front end of the support component 02 .

[0037] The locking mechanism 04 includes a locking strip 07, an elastic element 13 and an unlocking button 08. The locking strip 07 is a rectangular strip structure. Figure 2 and 4 It can be seen that the locking strip 07 is slidably arranged in the inner lining block 03 along the width direction of the inner lining block 03. The elastic element 13 is arranged between the locking strip 07 and the inner lining block 03. The unlocking button 08 is installed on the side of the headrest, which is used to control the sliding of the locking strip 07. Figure 4 The locking strip 07 is provided with a first locking portion 09 at the position corresponding to the guide column 02b. Figure 5 , the locking strip 07 is provided with a second locking portion 10 at a position corresponding to the headrest rod 01. In this embodiment, the elastic element 13 is a reset spring, which is installed between the lining block 03 and the locking strip 07, and is used to reset the locking strip 07. Under the elastic force of the elastic element 13, the first locking portion 09 and the second locking portion 10 can be locked on the guide column 02b and the headrest rod 01 respectively to limit the guide column 02b from sliding forward and backward and the lining block 03 from sliding up and down. Pressing the unlocking button 08 can push the locking strip 07 to slide, so as to release the first locking portion 09 and the second locking portion 10 from limiting the movement of the guide column 02b and the lining block 03, thereby realizing the synchronous unlocking of the headrest height and front and back adjustment.

[0038] like Figure 2 and Figure 4 As shown, the support component 02 has a mounting plate 02a at the front and a guide column 02b extending horizontally backward at the rear. The first locking portion 09 is a toothed structure provided on the locking strip 07. A rack 02c meshing with the toothed structure is provided on the side of the guide column 02b away from the unlocking button 08. In the locked state, the toothed structure of the locking strip 07 meshes with the rack 02c, and in the unlocked state, the toothed structure is away from the rack 02c.

[0039] like Figure 2 and Figure 5 As shown, the second locking portion 10 is a strip-shaped protrusion arranged on the locking strip 07, and a strip-shaped groove 01a engaged with the strip-shaped protrusion is arrayed on the side of the headrest rod 01 away from the unlocking button 08. When in the locked state, the strip-shaped protrusion of the locking strip 07 is engaged with the strip-shaped groove 01a, and when unlocked, the strip-shaped protrusion is away from the strip-shaped groove 01a.

[0040] like Fig. 9 As shown, the locking strip 07 is provided with a second mounting hole 07e which passes through the headrest in the up and down direction, the headrest rod 01 is installed in the second mounting hole 07e, the second mounting hole 07e is widened to ensure that the sliding of the locking strip 07 is not hindered, and the second locking portion 10 is located on the side wall of the second mounting hole 07e away from the unlocking button 08.

[0041] like Figure 5 As shown, there are four guide posts 02b, which are installed symmetrically with respect to the locking strip 07 and are distributed in a rectangular shape, wherein two guide posts 02b are located on the upper side of the locking strip 07 and the other two are located on the lower side of the locking strip 07. Fig. 9It can be seen that two avoidance grooves 07g are provided on the upper side of the locking strip 07, and two guide posts 02b on the upper side of the locking strip 07 are located in the two avoidance grooves 07g, and the first locking portion 09 is arranged on the side wall of the avoidance groove 07g away from the unlocking button 08. The headrest rod 01, the inner lining block 03, and the guide post 02b can be interlaced and matched to form a four-way adjustment, which has low cost and simple structure. The four-way locking is achieved by a locking strip 07, and the headrest body A can be adjusted up and down and front and back at the same time by pressing the button 11, which is convenient for adjustment.

[0042] like Figure 6 As shown, the rear ends of the four guide columns 02b are each provided with a first limit buckle 02d. When the headrest body A is adjusted to the frontmost position, the first limit buckle 02d clamps the inner lining block 03. In this embodiment, the mounting plate 02a and the first limit buckle 02d cooperate to limit the front and rear adjustment range of the headrest body A.

[0043] A spring sheet 14 is installed in the gap between the guide column 02b and the inner lining block 03. The spring sheet 14 is used to fill the installation gap so that the headrest can be stably adjusted with a small shaking amplitude.

[0044] like Figure 2 As shown, a locking pin 15 is inserted into the upper end of the headrest rod 01 in a direction perpendicular to the axis. The length of the locking pin 15 is greater than the diameter of the headrest rod 01. A slide groove 03a is provided along the height direction on the inner lining block 03. The locking pin 15 cooperates with the slide groove 03a to limit the up and down adjustment range of the headrest body A.

[0045] like Figure 3 , Figure 7 and Figure 8 As shown, the unlocking button 08 includes a button 11 and a button bracket 12. The button bracket 12 is fixedly mounted on the rear cover B facing the side of the locking strip 7. The button 11 is mounted on the button bracket 12 and abuts against the locking strip 07. To ensure that the button 11 abuts against the side of the locking strip 07 when the headrest body A is in any position, an extension portion 07c is provided along the width direction of the end surface of the locking strip 07 close to the unlocking button 08. The button 11 is provided with upper and lower abutting columns 11a. A spring is installed on the lower abutting column 11a to prevent the button 11 from getting stuck and being difficult to reset when the lower abutting column 11a abuts against the locking strip 07.

[0046] After the button is pressed, the locking strip 07 slides along the length direction of the inner lining block 03, and the first locking portion 09 and the second locking portion 10 leave the headrest rod 01 and the guide column 02b respectively. The headrest body A can be adjusted up and down and front and back at the same time. In this embodiment, the end surface of the locking strip 07 away from the unlocking button 08 is provided with a second limit buckle 07d. When the locking strip 07 is reset, the second limit buckle 07d clamps the inner lining block 03 to prevent the first locking portion 09 and the second locking portion 10 from excessive wear and damage.

[0047] Finally, it should be noted that the above description is only a preferred embodiment of the present invention. Under the guidance of the present invention, ordinary technicians in this field can make a variety of similar expressions without violating the purpose and claims of the present invention, and such changes fall within the scope of protection of the present invention.

Claims

1. A manual four-way headrest, characterized in that: include: A headrest rod (01) is used for being fixedly connected to the upper end of the backrest; An inner lining block (03) which is slidably mounted on the headrest rod (01) up and down, and the inner lining block (03) is provided with a first mounting hole (03b) penetrating along the front-rear direction of the headrest; A support component (02) is provided with a guide column (02b) extending in the front-rear direction of the headrest, and the guide column (02b) can be slidably assembled in the first mounting hole (03b) in the front-rear direction; A headrest body (A) fixedly mounted on the front end of the support component (02); and A locking mechanism (04), the locking mechanism (04) comprising a locking strip (07) slidably installed along the width direction of the inner lining block (03), an elastic element (13) arranged between the locking strip (07) and the inner lining block (03), and an unlocking button (08) for controlling the sliding of the locking strip (07); the locking strip (07) is provided with a first locking portion (09) and a second locking portion (10); under the elastic force of the elastic element (13), the first locking portion (09) and the second locking portion (10) can be locked on the guide column (02b) and the headrest rod (01) respectively to limit the guide column (02b) from sliding forward and backward and the inner lining block (03) from sliding up and down; pressing the unlocking button (08) can push the locking strip (07) to slide, so as to release the restriction of the first locking portion (09) and the second locking portion (10) on the movement of the guide column (02b) and the inner lining block (03).

2. The manual four-way headrest according to claim 1, characterized in that: The support component (02) has a mounting plate (02a) at the front and a guide column (02b) extending horizontally backward at the rear. The first locking portion (09) is a toothed structure arranged on the locking strip (07). The guide column (02b) is provided with a rack (02c) meshing with the toothed structure.

3. The manual four-way headrest according to claim 1, characterized in that: The second locking portion (10) is a strip-shaped protrusion arranged on the locking strip (07), and strip-shaped grooves (01a) matching the strip-shaped protrusion are distributed in an array on the headrest rod (01).

4. The manual four-way headrest according to claim 1, characterized in that: The locking strip (07) is provided with a second mounting hole (07e) penetrating in the vertical direction of the headrest, the headrest rod (01) is installed in the second mounting hole (07e), the second locking portion (10) is located on the side wall of the second mounting hole (07e) away from the unlocking button (08), the number of the guide columns (02b) is four, and they are installed symmetrically with respect to the locking strip (07) in the vertical direction, the upper side of the locking strip (07) is provided with an avoidance groove (07g), the guide column (02b) above the locking strip (07) is installed in the avoidance groove (07g), and the first locking portion (09) is located on the side wall of the avoidance groove (07g) away from the unlocking button (08).

5. The manual four-way headrest according to claim 1, characterized in that: A first limiting buckle (02d) is provided at the rear end of the guide column (02b), and when the headrest body (A) is adjusted to the frontmost position, the first limiting buckle (02d) clamps the inner lining block (03).

6. The manual four-way headrest according to claim 1, characterized in that: A locking pin (15) is inserted into the upper end of the headrest rod (01) in a direction perpendicular to the axis, and the length of the locking pin (15) is greater than the diameter of the headrest rod (01). The inner lining block (03) is provided with a slide groove (03a) in a height direction, and the locking pin (15) cooperates with the slide groove (03a) to limit the up and down adjustment distance of the headrest body (A).

7. The manual four-way headrest according to claim 1, characterized in that: The elastic element (13) is a reset spring, which is installed between the locking strip (07) and the inner lining block (03) and is used to reset the locking strip (07).

8. The manual four-way headrest according to claim 1, characterized in that: The unlocking button (08) comprises a button (11) and a button bracket (12); the button bracket (12) is fixedly mounted on the rear cover (B) opposite to the side of the locking strip (07); the button (11) is movably mounted on the button bracket (12) and abuts against the locking strip (07); an end surface of the locking strip (07) close to the unlocking button (08) is provided with an extension portion (07c) along the width direction; the extension portion (07c) is used to prevent the button (11) from being unable to abut against the side of the locking strip (07) after the headrest body (A) is adjusted forward and backward; the button (11) is provided with two upper and lower abutment columns (11a); the two abutment columns (11a) are used to prevent the button (11) from being unable to abut against the side of the locking strip (07) after the headrest body (A) is adjusted upward and downward.

9. The manual four-way headrest according to claim 1, characterized in that: A spring sheet (14) is installed in the gap between the guide column (02b) and the inner lining block (03), and the spring sheet (14) is used to make up for the installation gap.

10. The manual four-way headrest according to claim 1, characterized in that: The end surface of the locking strip (07) away from the unlocking button (08) is provided with a second limiting buckle (07d), and when the locking strip (07) is reset, the second limiting buckle (07d) clamps the inner lining block (03).