CN108382279B - Four-way adjusting mechanism of plug-pin type seat headrest - Google Patents
Four-way adjusting mechanism of plug-pin type seat headrest Download PDFInfo
- Publication number
- CN108382279B CN108382279B CN201810230389.7A CN201810230389A CN108382279B CN 108382279 B CN108382279 B CN 108382279B CN 201810230389 A CN201810230389 A CN 201810230389A CN 108382279 B CN108382279 B CN 108382279B
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- rod
- headrest
- plate
- shaped
- connecting plate
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/80—Head-rests
- B60N2/806—Head-rests movable or adjustable
- B60N2/809—Head-rests movable or adjustable vertically slidable
- B60N2/812—Head-rests movable or adjustable vertically slidable characterised by their locking devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/80—Head-rests
- B60N2/806—Head-rests movable or adjustable
- B60N2/838—Tiltable
- B60N2/841—Tiltable characterised by their locking devices
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/40—Weight reduction
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chair Legs, Seat Parts, And Backrests (AREA)
Abstract
The invention discloses a plug-in type seat headrest four-way adjusting mechanism which comprises headrest foaming, an upper headrest rod assembly, a lower headrest rod assembly and an angle adjusting mechanism assembly, wherein the upper headrest rod assembly is connected with the upper headrest rod assembly; when the angle of the seat headrest needs to be adjusted, an external force is applied to the connecting steel rod, the Z-shaped plate is pushed to drive the rotating shaft to rotate around the axis, the connecting shaft is driven to move in the track hole of the rotating shaft bracket, the locking pin is driven to be separated from the U-shaped rod opening and the limit hole of the supporting plate, and at the moment, the seat headrest is in an unlocking state, and the angle can be adjusted forwards and backwards; when the angle is adjusted to a proper angle, the connecting steel rod is loosened, the force applied by the second reset spring drives the locking pin to pass through the limiting hole of the supporting plate again to connect the steel rod and the Z-shaped plate for corresponding reset, and the angle adjustment is completed. The invention has compact structure and strong universality.
Description
Technical Field
The invention relates to a headrest adjusting mechanism, in particular to a plug-pin type seat headrest four-way adjusting mechanism.
Background
Automotive seating is an important component in an automobile that provides support and safety protection for passengers. As the market for automobiles becomes more competitive, seat comfort is also an important criterion for evaluating the overall seating of an automobile, and thus the overall vehicle.
The automobile seat headrest is an important component for providing good head support for drivers and passengers, relieving fatigue of the drivers and the passengers and improving riding comfort of the automobile.
Most of the existing automobile seat headrests at present have only the function of up-down adjustment (up-down along the trunk line) and have no function of front-back (angle) adjustment, so that passengers, particularly drivers, cannot find suitable head supporting points during driving, and comfort and practicability are reduced. The existing four-way headrest adjusting mechanism is complex in internal structure, high in cost and low in reliability.
Disclosure of Invention
The invention aims to provide a four-way adjusting mechanism of a plug-in type seat headrest, which has a compact structure and can realize adjustment in four directions.
In order to solve the technical problems, the invention adopts the following technical scheme: a plug-in type seat headrest four-way adjusting mechanism comprises headrest foaming, an upper headrest rod assembly, a lower headrest rod assembly and an angle adjusting mechanism assembly:
the upper headrest rod assembly is wrapped in the headrest foam, and comprises a U-shaped rod and a U-shaped rod connecting plate; two ends of the U-shaped rod are respectively provided with a U-shaped rod connecting plate; the U-shaped rod connecting plate is fixedly sleeved on the transmission rod;
the lower headrest assembly comprises a left supporting rod and a right supporting rod, the upper end of the left supporting rod is fixedly connected with a left supporting rod connecting plate, and the upper end of the right supporting rod is fixedly connected with a right supporting rod connecting plate; the left support rod connecting plate and the right support rod connecting plate are both rotatably sleeved on the transmission rod, and two ends of the transmission rod are respectively sleeved with a first reset spring, one end of one first reset spring is fixed on the transmission rod, and the other end of the first reset spring is fixed on the left support rod connecting plate; one end of the other first reset spring is fixed on the transmission rod, and the other end is fixed on the right support rod connecting plate; the left support rod connecting plate is also provided with an opening for the locking pin to pass through; the left support rod and the right support rod are sleeved with a headrest guide sleeve, grooves are formed in the surface of at least one of the left support rod and the right support rod, and the grooves are matched with a locking device of the headrest guide sleeve;
the angle adjusting mechanism assembly comprises a supporting plate, a rotating shaft bracket, a locking pin and a Z-shaped plate, wherein the supporting plate is fixed on a transmission rod, and at least two rows of limiting holes which are arranged by taking the axis of the transmission rod as a rotation center are formed in the supporting plate; the rotating shaft support is fixed on the left support rod connecting plate, the rotating shaft support is a plane, two ends of the plane are bent in the same direction to form two folding surfaces, the two folding surfaces are provided with holes for installing the rotating shaft and annular track holes taking the holes as circle centers, and the bottoms of the folding surfaces are provided with turned edges; the middle part of the Z-shaped plate is provided with a rotating shaft, the upper end of the Z-shaped plate is fixedly provided with a connecting shaft, and the lower end of the Z-shaped plate is provided with a connecting steel rod; an opening is formed in the locking pin, one end of the locking pin is a convex column protruding outwards, the locking pin is sleeved on the connecting shaft by means of the opening, and the convex column of the locking pin penetrates through the left support rod connecting plate and the supporting plate and is installed in the U-shaped rod opening; two second return springs are hung on the connecting rod, and the other ends of the second return springs are hung on the turnups at the bottoms of the folding surfaces of the rotating shaft brackets;
when the angle of the seat headrest needs to be adjusted, an external force is applied to the connecting steel rod, the Z-shaped plate is pushed to drive the rotating shaft to rotate around the axis, the connecting shaft is driven to move in the track hole of the rotating shaft bracket, the locking pin is driven to be separated from the U-shaped rod opening and the limit hole of the supporting plate, and at the moment, the seat headrest is in an unlocking state, and the angle can be adjusted forwards and backwards; when the angle is adjusted to a proper angle, the connecting steel rod is loosened, the force applied by the second reset spring drives the locking pin to pass through the limiting hole of the supporting plate again, and the connecting steel rod and the Z-shaped plate are correspondingly reset to finish angle adjustment;
when the up-down position of the seat headrest needs to be adjusted, the grooves on the left support rod or the right support rod are matched with the headrest guide sleeve locking device to limit or adjust the height of the seat headrest.
Preferably, the latch type seat headrest four-way adjusting mechanism further comprises an unlocking button, wherein a convex column is arranged in the unlocking button and is connected with the connecting steel rod; the unlocking button is embedded in the button decorative cover.
Preferably, the left support rod connecting plate is provided with a limit flanging, the limit flanging is partially wrapped outside the support plate, the rotation process of the support plate is limited, and the limit position of the headrest is further limited.
Preferably, a first bushing is arranged among the left support rod connecting plate, the right support rod connecting plate and the transmission rod.
Preferably, a second bushing is arranged between the rotating shaft and the rotating bracket.
Preferably, a U-shaped rod opening is arranged above a U-shaped rod connecting plate arranged at one end of the U-shaped rod.
Compared with the prior art, the invention has the following beneficial effects:
1) The invention has compact structure, less number of needed parts and high reliability.
2) The invention has convenient operation and improves the comfort of users.
3) The invention can be suitable for most automobile seats on the market by changing the structure of the lower headrest rod, and has good universality.
Drawings
FIG. 1 is a schematic view of the four-way adjustment mechanism of the plug-in seat headrest of the present invention with the headrest removed from foaming;
FIG. 2 is an overall schematic view of a four-way adjustment mechanism for a plug-in seat headrest of the present invention;
FIG. 3 is an exploded view of the four-way adjustment mechanism of the plug-in seat headrest of the present invention with the headrest removed from foaming;
FIG. 4 is a partial rear view of the angle adjustment assembly of the latch type seat headrest four-way adjustment mechanism of the present invention after assembly;
FIG. 5 is a partial side view of the latch seat headrest four-way adjustment mechanism of the present invention with the release button and button trim cover removed;
FIG. 6 is a schematic view of an angle adjustment assembly from another perspective after assembly of the four-way adjustment mechanism of the latch type seat headrest of the present invention.
In the figure: 1-foaming a headrest; 5-a transmission rod; 6-supporting plates; 8-a first return spring; 9-a first bushing; 10-a second bushing; 21-left strut; 22-right struts; 23-a left support rod connecting plate; 24-right support rod connecting plates; 31-U-shaped bar; a 32-U-shaped rod connection plate; 41-a rotating shaft bracket; 42-connecting shaft; 43-locking pin; 44-a rotation axis; 45-a second return spring; 46-connecting steel bars; 47-Z-shaped plate; 71-an unlock button; 72-button decorative cover; 211-grooves; 231-limiting flanging; 601-limiting holes; 3101-U-bar openings.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific examples, which are not intended to limit the invention, so that those skilled in the art may better understand the invention and practice it.
As shown in fig. 1 to 6, the present invention is divided into three parts, an upper headrest rod assembly, a lower headrest rod assembly, and an angle adjustment mechanism assembly:
the upper headrest rod assembly comprises a U-shaped rod 31, two U-shaped rod connecting plates 32 welded at two ends of the U-shaped rod 31, the U-shaped rod connecting plates 32 are fixedly welded on the transmission rod 5, a U-shaped rod opening 3101 is arranged above the U-shaped rod connecting plates 32 arranged at one end of the U-shaped rod 31, and the size of the U-shaped rod opening 3101 is matched with the size of a convex column of the locking pin 43. The upper headrest rod assembly is completely wrapped in the headrest foam 1.
The lower headrest rod assembly comprises a left support rod 21 and a right support rod 22, a left support rod connecting plate 23 is welded at the upper end of the left support rod 21, a right support rod connecting plate 24 is welded at the upper end of the right support rod 22, the left support rod connecting plate 23 and the right support rod connecting plate 24 are rotatably sleeved on the transmission rod 5, two ends on the transmission rod 5 are respectively sleeved with a first reset spring 8, one ends of the two first reset springs 8 are fixed on the transmission rod 5, and the other ends are correspondingly fixed on the left support rod connecting plate 23 or the right support rod connecting plate 24.
The left strut connecting plate 23 is also provided with an outwardly extending flat plate portion provided with an opening through which the boss of the locking pin 43 passes. The lower section of the left support rod 21 is provided with a plurality of grooves 211, the grooves 211 are used for adjusting the upper and lower heights of the headrest in a matched mode with the headrest guide sleeve of the automobile seat, and the grooves 211 can also be arranged on the right support rod 22. In addition, a limit flange 231 is provided at the rear side of the left strut connecting plate 23 to partially wrap the support plate 6.
The first bushing 9 is arranged among the left support rod connecting plate 23, the right support rod connecting plate 24 and the transmission rod 5, and the bushing can enable the support rods to rotate smoothly relative to the transmission rod 5.
The angle adjustment mechanism assembly includes a support plate 6, a spindle bracket 41, a locking pin 43, and a Z-shaped plate 47. The supporting plate 6 is welded on the transmission rod 5, three rows of limiting holes 601 which are arranged by taking the axis of the transmission rod 5 as the rotation center are arranged on the supporting plate 6, and the size of each limiting hole 601 is matched with the convex column of the locking pin 43. The rotating shaft support 41 is a plane, two ends of the plane are bent towards the same direction to form two folding surfaces, the plane of the rotating shaft support 41 is welded on the left support rod connecting plate 23 and provided with an opening corresponding to the convex column of the locking pin 43, the two folding surfaces of the rotating shaft support 41 are provided with an opening for installing the rotating shaft 44 and an annular track hole taking the opening as a circle center, and the bottoms of the two folding surfaces are also provided with turned edges for installing the second reset spring 45.
A rotating shaft 44 is welded in the middle of the Z-shaped plate 47, two ends of the rotating shaft 44 are arranged on the rotating shaft bracket 41, and a second bushing 10 is arranged between the rotating shaft 44 and the rotating shaft bracket; a connecting shaft 42 is fixed at the upper end of the Z-shaped plate 47, and two ends of the connecting shaft 42 are placed in annular track holes of the rotating shaft bracket 41; the other end of the Z-shaped plate 47 is riveted with a connecting steel rod 46, and the connecting steel rod 46 is used for connecting with the unlocking button 71.
The locking pin 43 is shaped like a '', is of a rectangular annular structure with an opening in the middle, and one end of the outer side extends out of a pair of symmetrical convex columns, the locking pin 43 is sleeved in the connecting shaft 42 in a separated mode through the opening in the middle, and the pair of convex columns sequentially penetrate through the left support rod connecting plate 23 and the supporting plate 6 to be finally installed in the U-shaped rod opening 3101 of the U-shaped rod 31.
The unlocking button 71 is wrapped by a button decorative cover 72 and is installed on one side of the headrest foam 1, and a long convex column is arranged inside the unlocking button 71 and penetrates through the button decorative cover 72 to be connected with the connecting steel rod 46.
The left support rod 21 and the right support rod 22 of the invention are sleeved with a headrest guide sleeve and are arranged on the backrest of the automobile seat, the headrest guide sleeves are provided with locking devices, the most commonly used locking devices are limiting elastic sheets, for example, a seat headrest guide sleeve is disclosed in a patent CN201720493081.2, an automobile seat headrest guide sleeve is disclosed in a patent CN201420824278.6, an automobile seat headrest guide sleeve is disclosed in a patent CN200720068253.8, and the like; because of the national relevant standards, and the industry rules, standards and the like in the automobile industry, the headrest guide sleeve is arranged on the existing automobile seat, and the invention does not relate to the change of the structure of the headrest guide sleeve, the headrest guide sleeve does not appear in the drawing.
When the invention needs to carry out the up-down height of the headrest of the seat, the groove 211 on the left support rod 21 is matched with the locking device (usually a limiting elastic sheet) of the headrest guide sleeve, and the height is adjusted by an unlocking button (or other unlocking equipment) on the headrest guide sleeve, so that the description adjusting step of the patent can be referred to.
In a state before the unlocking button 71 is not pressed (locking state), as shown in fig. 1, 4 and 6, the connecting shaft 42 is located at the forefront end of the annular track hole of the connecting bracket 41, the locking pin 43 is inserted into the U-shaped rod hole 3101, when the angle of the seat headrest needs to be adjusted, a user presses the unlocking button 71, the unlocking button 71 pushes the connecting steel rod 46, the connecting steel rod 46 pushes the Z-shaped plate 47 to drive the rotating shaft 44 to rotate along the axis, the connecting shaft 42 at the other end of the Z-shaped plate 47 is pulled to move backwards in the annular track hole, the connecting shaft 42 drives the locking pin 43 to be separated from the limiting holes 601 of the U-shaped rod hole 3101 and the supporting plate 6, the second reset spring 45 is elongated, the unlocking state is obtained at this time, the headrest foaming 1 is pushed to adjust the angle, after the unlocking button 71 is released, the second reset spring 45 applies a force to enable the locking pin 43 to pass through the supporting plate 6 again (when the seat headrest is adjusted to the maximum gear, the locking pin 43 passes through the U-shaped rod hole 1), other parts such as the connecting shaft 42, the Z-shaped plate 47 are reset to the positions of the steel plates 3100. A pair of first return springs 8 provided at both ends of the transmission rod 5 provide a return torsion force for relative rotation between the upper head rod assembly and the lower head rod assembly.
The angular gear of the headrest of the seat can be adjusted by the number of the limiting holes 601 arranged on the supporting plate 6, and in this embodiment, three gears are selected, and the gears can be increased or decreased according to the actual requirements (i.e. the number of the limiting holes 601 and the corresponding area of the supporting plate 6 are correspondingly increased or decreased). The limit flange 231 arranged at the rear of the left support rod connecting plate 23 is used for limiting the movement progress of the support plate 6 and the headrest and preventing the headrest from rotating in an over-position manner; the button decorative cover 72 limits the travel of the unlocking button 1, so that the locking pin 43 can only be separated from the U-shaped rod hole 3101 and the limiting hole of the supporting plate 6, and the locking pin 43 cannot return due to the fact that the locking pin cannot be separated from the left support rod connecting plate 23.
The above-mentioned embodiments of the present invention are not intended to limit the scope of the present invention, and the embodiments of the present invention are not limited thereto, and all kinds of modifications, substitutions or alterations made to the above-mentioned structures of the present invention according to the above-mentioned general knowledge and conventional means of the art without departing from the basic technical ideas of the present invention shall fall within the scope of the present invention.
Claims (4)
1. A four-way adjusting mechanism of a plug-type seat headrest is characterized in that: comprises a headrest foaming unit (1), an upper headrest rod assembly, a lower headrest rod assembly and an angle adjusting mechanism assembly:
the upper headrest rod assembly is wrapped in the headrest foam (1) and comprises a U-shaped rod (31) and a U-shaped rod connecting plate (32); two ends of the U-shaped rod (31) are respectively provided with a U-shaped rod connecting plate (32), and a U-shaped rod opening (3101) is arranged above the U-shaped rod connecting plate (32) arranged at one end of the U-shaped rod (31); the U-shaped rod connecting plate (32) is fixedly sleeved on the transmission rod (5);
the lower headrest assembly comprises a left supporting rod (21) and a right supporting rod (22), wherein the upper end of the left supporting rod (21) is fixedly connected with a left supporting rod connecting plate (23), and the upper end of the right supporting rod (22) is fixedly connected with a right supporting rod connecting plate (24); the left support rod connecting plate (23) and the right support rod connecting plate (24) are both rotatably sleeved on the transmission rod (5), and two ends of the transmission rod (5) are respectively sleeved with a first reset spring (8), wherein one end of the first reset spring (8) is fixed on the transmission rod (5), and the other end of the first reset spring is fixed on the left support rod connecting plate (23); one end of the other first reset spring (8) is fixed on the transmission rod (5), and the other end is fixed on the right support rod connecting plate (24); the left support rod connecting plate (23) is also provided with an opening for the locking pin (43) to pass through; the left support rod (21) and the right support rod (22) are sleeved with a headrest guide sleeve, a groove (211) is formed in the surface of at least one support rod of the left support rod (21) and the right support rod (22), and the groove (211) is matched with a locking device of the headrest guide sleeve;
the angle adjusting mechanism assembly comprises a supporting plate (6), a rotating shaft bracket (41), a locking pin (43) and a Z-shaped plate (47), wherein the supporting plate (6) is fixed on a transmission rod (5), and at least two rows of limiting holes (601) which are arranged by taking the axis of the transmission rod (5) as a rotation center are formed in the supporting plate (6); the rotating shaft support (41) is fixed on the left support rod connecting plate (23), the rotating shaft support (41) is a plane, two ends of the plane are bent in the same direction to form two folding surfaces, the two folding surfaces are provided with holes for installing the rotating shaft (44) and annular track holes taking the holes as circle centers, and the bottoms of the folding surfaces are provided with turned edges; a rotating shaft (44) is arranged in the middle of the Z-shaped plate (47), a connecting shaft (42) is fixedly arranged at the upper end of the Z-shaped plate, a connecting steel rod (46) is arranged at the lower end of the Z-shaped plate, and a second bushing (10) is arranged between the rotating shaft (44) and the rotating shaft bracket (41); an opening is formed in the locking pin (43), one end of the locking pin (43) is provided with a convex column protruding outwards, the locking pin (43) is sleeved on the connecting shaft (42) by means of the opening, and the convex column of the locking pin (43) penetrates through the left support rod connecting plate (23) and the supporting plate (6) and is arranged in the U-shaped rod opening (3101); a second reset spring (45) is also hung on the connecting shaft (42), and the other end of the second reset spring (45) is hung on the flanging at the bottom of the folding surface of the rotating shaft bracket (41);
when the angle of the seat headrest needs to be adjusted, an external force is applied to the connecting steel rod (46), the Z-shaped plate (47) is pushed to drive the rotating shaft (44) to rotate around the axis, the connecting shaft (42) is driven to move in the track hole of the rotating shaft bracket (41), the locking pin (43) is driven to be separated from the U-shaped rod hole (3101) and the limit hole (601) of the supporting plate (6), and at the moment, the seat headrest is in an unlocking state, and the angle can be adjusted forwards and backwards; when the angle is adjusted to a proper angle, the connecting steel rod (46) is loosened, the second return spring (45) releases the received force to drive the locking pin (43) to pass through the limit hole of the supporting plate (6) again, and the connecting steel rod (46) and the Z-shaped plate (47) correspondingly return to finish the angle adjustment;
when the up-down position of the seat headrest is required to be adjusted, the grooves (211) on the left support rod (21) or the right support rod (22) are matched with the headrest guide sleeve locking device to limit or adjust the height of the seat headrest.
2. The latch type seat headrest four-way adjustment mechanism according to claim 1, wherein: the plug-in type seat headrest four-way adjusting mechanism further comprises an unlocking button (71), wherein a convex column is arranged in the unlocking button (71) and is connected with the connecting steel rod (46); the unlocking button (71) is embedded in the button decorative cover (72).
3. The latch type seat headrest four-way adjustment mechanism according to claim 2, wherein: the left support rod connecting plate (23) is provided with a limit flanging (231), and the limit flanging (231) is partially wrapped outside the support plate (6) to limit the rotation progress of the support plate (6) so as to limit the limit position of the headrest.
4. The latch type seat headrest four-way adjustment mechanism according to claim 3, wherein: a first bushing (9) is arranged among the left support rod connecting plate (23), the right support rod connecting plate (24) and the transmission rod (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810230389.7A CN108382279B (en) | 2018-03-20 | 2018-03-20 | Four-way adjusting mechanism of plug-pin type seat headrest |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810230389.7A CN108382279B (en) | 2018-03-20 | 2018-03-20 | Four-way adjusting mechanism of plug-pin type seat headrest |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108382279A CN108382279A (en) | 2018-08-10 |
| CN108382279B true CN108382279B (en) | 2023-07-21 |
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ID=63067835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810230389.7A Active CN108382279B (en) | 2018-03-20 | 2018-03-20 | Four-way adjusting mechanism of plug-pin type seat headrest |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108382279B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109701106A (en) * | 2019-02-13 | 2019-05-03 | 王瑞 | A kind of steady type infusion support |
| EP4010224B1 (en) * | 2019-08-07 | 2023-07-19 | Volvo Truck Corporation | A headrest for a vehicle seat |
| CN110877555A (en) * | 2019-11-14 | 2020-03-13 | 广汽零部件有限公司 | Foldable headrest |
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| US6000760A (en) * | 1996-10-31 | 1999-12-14 | Chung; Hae Il | Device for tilting headrest for automobile and device for moving headrest forward and backward in which the tilting device is used |
| US6045181A (en) * | 1998-03-18 | 2000-04-04 | Ikeda Bussan Co., Ltd. | Adjustable headrest |
| US6485096B1 (en) * | 1999-06-10 | 2002-11-26 | Intier Automotive Inc. | Continuous self-adjusting head restraint system |
| DE102007043065A1 (en) * | 2007-09-11 | 2009-03-12 | Grammer Ag | Head restraint for vehicle seat, has locking device provided with pivot, slotted hole-like connecting rod, U-shaped latch plate and clamping units to shift locking device in locking position when minimum force acts on pad body |
| CN102259607A (en) * | 2010-05-31 | 2011-11-30 | 格瑞玛股份公司 | Headrest for motor-vehicle seat |
| CN103260945A (en) * | 2010-12-24 | 2013-08-21 | 提爱思科技股份有限公司 | Forward-backward position adjusting device for headrest |
| CN202966032U (en) * | 2012-12-20 | 2013-06-05 | 东莞市勇哥汽车配件有限公司 | Adjustable neck pillow specialized for automobiles |
| CN203460738U (en) * | 2013-07-26 | 2014-03-05 | 长城汽车股份有限公司 | Automobile seat headrest adjusting mechanism |
| CN104369681A (en) * | 2014-12-12 | 2015-02-25 | 重庆宏立至信汽车部件制造有限公司 | Foldable frame assembly of seat headrest |
| CN205706285U (en) * | 2016-03-28 | 2016-11-23 | 格拉默车辆内饰（上海）有限公司 | The adjustment structure of pendulum model four-way headrest |
| CN206012388U (en) * | 2016-08-31 | 2017-03-15 | 浙江天成自控股份有限公司 | The headrest angle regulation mechanism of seat |
| CN206664366U (en) * | 2017-04-06 | 2017-11-24 | 全兴工业研发（廊坊）有限公司 | Fold-down vehicle seat is rested the head on |
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| CN108382279A (en) | 2018-08-10 |
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