CN111319532A - Headrest device with active protection function - Google Patents
Headrest device with active protection function Download PDFInfo
- Publication number
- CN111319532A CN111319532A CN202010242433.3A CN202010242433A CN111319532A CN 111319532 A CN111319532 A CN 111319532A CN 202010242433 A CN202010242433 A CN 202010242433A CN 111319532 A CN111319532 A CN 111319532A
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- Prior art keywords
- headrest
- rod
- cylinder
- displacement sensor
- fixing part
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- 238000006073 displacement reaction Methods 0.000 claims abstract description 38
- 230000005611 electricity Effects 0.000 claims description 3
- 230000006378 damage Effects 0.000 abstract description 8
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 208000027418 Wounds and injury Diseases 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 4
- 208000014674 injury Diseases 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 208000028373 Neck injury Diseases 0.000 description 2
- 229920005830 Polyurethane Foam Polymers 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000013013 elastic material Substances 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000010985 leather Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000011496 polyurethane foam Substances 0.000 description 2
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000011534 incubation Methods 0.000 description 1
- 231100000518 lethal Toxicity 0.000 description 1
- 230000001665 lethal effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Images
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
- B60N2/888—Head-rests with arrangements for protecting against abnormal g-forces, e.g. by displacement of the head-rest
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
Abstract
The invention provides an active protection headrest device, which comprises a headrest, a piston connecting rod and a controller, wherein the headrest comprises a movable headrest moving part and a headrest fixing part fixed on an automobile seat, a cylinder is arranged in the headrest fixing part, the inner wall of the cylinder is in sliding connection with one end of the piston connecting rod, the other end of the piston connecting rod is fixed with the headrest moving part, one end, away from the headrest moving part, of the cylinder is connected with inflation equipment, the side wall of the cylinder is also connected with an air release pipe, a passenger head displacement sensor is arranged below the headrest fixing part, one end, away from the headrest fixing part, of the headrest moving part is provided with a pressure sensor, and the inner wall of the cylinder is provided with a cylinder displacement. The headrest device can be started in time and protect the neck of a passenger when in rear-end collision, so that the neck damage is avoided, the position of the headrest can be automatically adjusted according to different passenger states, and the requirements of different users on the riding safety are met.
Description
Technical Field
The invention belongs to the technical field of automobile safety, and particularly relates to an active protection headrest device.
Background
Rear-end collisions are the least lethal type of accident among the various types of accidents, but the probability of injury they cause is the highest. In case of a rear collision of the vehicle, the head of the driver is kept at the original position or moves slowly due to inertia, while the body of the driver moves forward along with the vehicle, so that the neck of the driver is injured. The post-impact injury is the most serious secondary injury in traffic accidents, has many complications and long incubation period, and not only can the injured person suffer great pain, but also can bring about great property loss.
Neck protection among the prior art is given priority to the seating system, and the protection principle is that the back through the seating system and headrest restriction head moves backward for last trunk when the rear-end collision, and then reduces the injured risk of neck. Although there is a mechanical active headrest, the main principle is that in the collision process, the occupant presses the seat backwards due to inertia, and the headrest is activated through a spatial link mechanism, but in the technical scheme, the response time can be different due to different occupant conditions, that is, before the headrest acts, neck injury may occur, and the safety of the neck of the occupant cannot be ensured. Therefore, it is necessary to develop a device capable of automatically adjusting the position of the headrest according to different occupant conditions to meet the requirements of different users on the riding safety.
Disclosure of Invention
In view of the above, the present invention provides an active protection headrest apparatus, which can be activated in time and protect the neck of a passenger in a rear-end collision, so as to avoid the occurrence of neck injury, and can automatically adjust the position of the headrest according to different passenger states, thereby meeting the requirements of different users on riding safety.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the utility model provides a headrest device of initiative protection, includes headrest, piston rod, controller, and the headrest has the cylinder including headrest moving part that can remove, fix the headrest fixed part on car seat in the headrest fixed part, the cylinder inner wall with piston rod's one end sliding connection, piston rod's the other end with headrest moving part is fixed, inflation equipment with the controller electricity is connected.
Furthermore, the device also comprises a sensing assembly, wherein the sensing assembly comprises a passenger head displacement sensor, a pressure sensor and a cylinder displacement sensor which are electrically connected with the controller.
Furthermore, the head displacement sensor of the passenger is arranged below the headrest fixing part, the pressure sensor is arranged at one end, away from the headrest fixing part, of the headrest moving part, and the cylinder displacement sensor is arranged on the inner wall of the cylinder.
Furthermore, the piston connecting rod comprises a first rod, a second rod and a third rod which are connected in sequence, the first rod is located in the headrest moving portion, the third rod is located in the air cylinder, and the third rod is connected with the inner wall of the air cylinder in a sliding mode.
Further, still include at least one spring, the spring is located between first pole and the third pole, the one end of spring with the inner wall of cylinder is connected, and the other end and the third pole of spring are connected.
Further, the cylinder displacement sensor is located between the first rod and the third rod.
Further, still include the buffer block, the buffer block is located the third pole with between the gas charging means, the buffer block is fixed in the inner wall of cylinder.
The vehicle seat further comprises a headrest rod, one end of the headrest rod extends into the headrest fixing part, the other end of the headrest rod extends out of the headrest fixing part, the occupant head displacement sensor is located on the headrest rod, and the occupant head displacement sensor is located between the headrest moving part and the headrest rod.
Furthermore, the headrest fixing part is connected with the inflation equipment through an inflation tube, and an inflation valve is arranged in the inflation tube.
Furthermore, the number of the air release pipes is two, the two air release pipes are respectively positioned on two sides of the air cylinder, and air release valves are arranged in the air release pipes. The inflation valve and the air release valve are electrically connected with the controller.
Furthermore, the headrest comprises an inner container made of polyurethane foam and a face sleeve wrapping the inner container.
The face cover is made of fabric or leather materials, and the face cover wraps the outer surface of the headrest to play a role in buffering.
Furthermore, the pressure sensor is positioned between the inner container and the face sleeve.
Furthermore, the buffer block is made of elastic materials.
Further, the buffer block is preferably made of elastic rubber material.
Further, the occupant head displacement sensor and the air cylinder displacement sensor are preferably OMEGA-LP804 miniature position sensors.
Further, the pressure sensor is preferably an MTO-L10C micro load cell.
Further, the controller is preferably a CQ57HB76-401A controller.
Further, the cylinder is preferably an SMC-MXS12-40AS type cylinder.
Compared with the prior art, the headrest device for active protection, which is created by the invention, has the following advantages:
(1) the headrest device can be started in time and protect the neck of a passenger when in rear-end collision, so that the neck damage is avoided, the position of the headrest can be automatically adjusted according to different passenger states, and the requirements of different users on the riding safety are met.
(2) The headrest device can automatically adjust the pressure relief time according to the pressure of the head of a passenger after contacting with the headrest moving part, prevents unnecessary damage, has high flexibility, and is suitable for protection under different conditions.
(3) According to the headrest device, the spring is arranged in the cylinder, when the piston connecting rod is pushed by airflow to move towards the direction close to the headrest moving part, the spring can play a role in buffering through compression of the spring, and the piston connecting rod is prevented from being greatly impacted by the air.
(4) According to the headrest device, the buffer block is arranged, so that large impact force generated when the piston connecting rod is in contact with the buffer block can be avoided, the head of a passenger is prevented from being damaged or uncomfortable by the action force, and the safety and the comfort of the headrest device are improved.
(5) The headrest device of the invention can automatically adjust the trigger time of the device according to the distance between the head of the passenger and the headrest moving part.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the invention without limitation. In the drawings:
fig. 1 is a schematic view of a headrest apparatus according to an embodiment of the invention when not activated;
fig. 2 is a schematic view of the headrest moving portion after the headrest device according to the embodiment of the invention is triggered.
Description of reference numerals:
1-headrest; 11-a headrest moving portion; 12-headrest fixing part; 13-a pressure sensor; 2-a cylinder; 21-a cylinder displacement sensor; 22-a spring; 23-a buffer block; 4-a controller; 5-an inflation tube; 6-an inflation device; 7-a gas escape pipe; 8-headrest rods; 9-occupant head displacement sensor; 10-a piston rod; 101-a first rod; 102-a second rod; 103-third bar.
Detailed Description
It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which are merely for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.
In the description of the invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "connected" are to be construed broadly, e.g. as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.
The invention will be described in detail with reference to the following embodiments with reference to the attached drawings.
As shown in fig. 1-2, an active protection headrest device, including headrest 1, piston rod 10, controller 4, headrest 1 including the headrest removal portion 11 that can remove, fix the headrest fixed part 12 on car seat, have cylinder 2 in the headrest fixed part 12, the 2 inner walls of cylinder with piston rod 10's one end sliding connection, piston rod 10's the other end with headrest removal portion 11 is fixed, and the one end that headrest removal portion 11 was kept away from to cylinder 2 is connected with inflation equipment 6, and the lateral wall of cylinder 2 still is connected with air release pipe 7, inflation equipment 6 with controller 4 electricity is connected.
The pressure relief time can be automatically adjusted according to the pressure of the contact between the head of a passenger and the headrest moving part 11, unnecessary injury is prevented, the flexibility is high, the device is suitable for protection under different conditions, the application range is wide, and the flexibility is strong.
When the automobile is in rear-end collision, the automobile headrest can be started in time and protects the neck of a passenger, the neck damage is avoided, the position of the headrest 1 can be automatically adjusted according to different passenger states, and the requirements of different users on riding safety are met.
The device also comprises a sensing assembly, wherein the sensing assembly comprises a passenger head displacement sensor 9, a pressure sensor 13 and a cylinder displacement sensor 21 which are electrically connected with the controller 4.
The occupant head displacement sensor 9 is provided below the headrest fixing portion 12, the pressure sensor 13 is provided at one end of the headrest moving portion 11 remote from the headrest fixing portion 12, and the cylinder displacement sensor 21 is provided on the inner wall of the cylinder 2.
The piston connecting rod 10 includes a first rod 101, a second rod 102, and a third rod 103 connected in sequence, the first rod 101 is located in the headrest moving portion 11, the third rod 103 is located in the cylinder 2, and the third rod 103 is slidably connected to an inner wall of the cylinder 2.
When the inflator 6 continues to inflate the air cylinder 2, the air flow pushes the third rod 103 to move toward the headrest moving portion 11, so that the piston rod 10 pushes the headrest moving portion 11 to move away from the headrest fixing portion 12. When the third rod 103 moves, the cylinder displacement sensor 21 may acquire the displacement of the movement of the third rod 103 in real time.
The air cylinder further comprises at least one spring 22, the spring 22 is located between the first rod 101 and the third rod 103, one end of the spring 22 is connected with the inner wall of the air cylinder 2, and the other end of the spring 22 is connected with the third rod 103.
The spring 22 is arranged in the cylinder 2, when the piston connecting rod 10 is pushed by airflow to move towards the direction close to the headrest moving part 11, the compression of the spring 22 can play a role in buffering, so that the piston connecting rod 10 is prevented from generating large impact on the air, and the safety is higher.
The cylinder displacement sensor 21 is located between the first rod 101 and the third rod 103.
The air inflation device is characterized by further comprising a buffer block 23, wherein the buffer block 23 is located between the third rod 103 and the air inflation device 6, and the buffer block 23 is fixed on the inner wall of the air cylinder 2.
The buffer block 23 is made of an elastic material.
The buffer block 23 is preferably made of an elastic rubber material.
The arrangement of the buffer block 23 can avoid the generation of large impact force when the piston connecting rod 10 contacts with the buffer block 23, prevent the head of a passenger from being damaged or uncomfortable by the acting force, and increase the safety and comfort of the headrest device.
The vehicle headrest system further comprises a headrest rod 8, one end of the headrest rod 8 extends into the headrest fixing part 12, the other end of the headrest rod 8 extends out of the headrest fixing part 12, the occupant head displacement sensor 9 is located on the headrest rod 8, and the occupant head displacement sensor 9 is located between the headrest moving part 11 and the headrest rod 8.
The occupant head displacement sensor 9 can acquire the displacement of the movement of the occupant in real time and transmit the acquired data to the controller 4, and the controller 4 controls the starting or stopping time of the protection mechanism.
The headrest fixing part 12 is connected with the inflation equipment 6 through an inflation tube 5, and an inflation valve is arranged in the inflation tube 5.
The two air release pipes 7 are arranged, the two air release pipes 7 are respectively positioned on two sides of the air cylinder 2, and air release valves are arranged in the air release pipes 7.
The inflation valve and the air release valve are electrically connected with the controller 4.
The headrest 1 comprises an inner container made of polyurethane foam and a surface sleeve wrapping the inner container.
The face cover is made of fabric or leather materials, and the face cover wraps the outer surface of the headrest 1 to play a role in buffering.
The pressure sensor 13 is positioned between the inner container and the face sleeve.
The pressure sensor 13 can collect the pressure between the head of the occupant and the headrest moving portion 11 in real time.
Through setting up passenger's head displacement sensor 9, pressure sensor 13, cylinder displacement sensor 21, can give controller 4 with the data real-time transfer that gathers, and then controller 4 can be nimble quick adjusting device aerify or lose heart for flexibility, the security of this device are higher.
The specific using process is as follows:
in actual use, the headrest fixing part 12 is fixed with the automobile seat, the inflation equipment 6 and the sensor 4 are fixed with the back of the automobile seat, the controller 4 is connected with the automobile safety system, and meanwhile, the passenger head displacement sensor 9, the pressure sensor 13, the cylinder displacement sensor 21 and the inflation equipment 6 are all electrically connected with the controller 4.
When the automobile safety system detects that the rear collision occurs, the passenger head displacement sensor 9 sends the collected passenger displacement signal to the controller 4, and the controller 4 controls the inflation equipment 6 to inflate the air cylinder 2, and simultaneously opens the inflation valve and closes the air release valve. At this time, the inflator 6 continues to inflate the cylinder 2, and the air flow pushes the piston rod 10 to move toward the headrest moving portion 11, and the piston rod 10 pushes the headrest moving portion 11 to move away from the headrest fixing portion 12 until the headrest moving portion 11 comes into contact with the head of the occupant.
At this time, the pressure sensor 13 will collect a pressure signal and transmit the pressure signal to the controller 4, and when the pressure value reaches a set value, the controller 4 controls the inflation valve and the inflation device 6 to close and opens the release valve. At this time, the air cylinder 2 is deflated, so that the piston rod 10 moves in a direction away from the headrest moving portion 11, and the headrest moving portion 11 is driven to move in a direction close to the headrest fixing portion 12. When the controller 4 detects that the pressure value collected by the pressure sensor 13 is small, the air release valve is closed, and the air release valve is not opened until the pressure value reaches the proper value, so that the head of the whole process is ensured to be in a proper pressure range. When the piston rod 10 continues to move away from the headrest moving portion 11 until it abuts against the cushion block 23, the controller 4 closes the release valve 12, and the whole process is finished.
When the cylinder displacement sensor 21 detects that the piston rod 10 has moved to the extreme position, the head is not in contact with the headrest moving portion 11, and at this time, the controller 4 controls the inflation valve and the inflation device 6 to be closed, and at this time, the piston rod 10 is kept still until the headrest 1 is in contact with the head moving portion, and then the above-described operation is performed.
It should be noted that when the pressure value acquired by the pressure sensor 13 is smaller than the preset value, both the inflation valve and the deflation valve are closed, and the deflation valve is not opened until the pressure reaches the preset value. When the pressure value collected by the pressure sensor 13 is larger than the preset value, the air release valve is opened, the headrest moving part 11 moves towards the direction close to the headrest fixing part 12 until the piston connecting rod 10 abuts against the buffer block 23, the air release valve is closed, and the process is finished.
When the headrest moving part 11 does not reach the reset position at last, the device can remind a user, and the user can manually push the headrest moving part 11 to the original position without any influence on the device.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the invention, so that any modifications, equivalents, improvements and the like, which are within the spirit and principle of the present invention, should be included in the scope of the present invention.
Claims (10)
1. The utility model provides a headrest device of initiative protection which characterized in that: including headrest (1), piston connecting rod (10), controller (4), headrest (1) including headrest removal portion (11) that can remove, fix headrest fixed part (12) on car seat, have cylinder (2) in headrest fixed part (12), cylinder (2) inner wall with the one end sliding connection of piston connecting rod (10), the other end of piston connecting rod (10) with headrest removal portion (11) are fixed, and the one end that headrest removal portion (11) was kept away from in cylinder (2) is connected with inflation equipment (6), and the lateral wall of cylinder (2) still is connected with disappointing pipe (7), inflation equipment (6) with controller (4) electricity is connected.
2. An actively protected headrest apparatus as claimed in claim 1, wherein: the device also comprises a sensing assembly, wherein the sensing assembly comprises a passenger head displacement sensor (9), a pressure sensor (13) and a cylinder displacement sensor (21) which are electrically connected with the controller (4).
3. An actively protected headrest apparatus as claimed in claim 2, wherein: the head displacement sensor (9) of the passenger is arranged below the headrest fixing part (12), the pressure sensor (13) is arranged at one end, away from the headrest fixing part (12), of the headrest moving part (11), and the cylinder displacement sensor (21) is arranged on the inner wall of the cylinder (2).
4. An actively protected headrest apparatus as claimed in claim 1, wherein: the piston connecting rod (10) comprises a first rod (101), a second rod (102) and a third rod (103) which are sequentially connected, the first rod (101) is located in the headrest moving portion (11), the third rod (103) is located in the cylinder (2), and the third rod (103) is connected with the inner wall of the cylinder (2) in a sliding mode.
5. An actively protected headrest apparatus as claimed in claim 4, wherein: the hydraulic cylinder is characterized by further comprising at least one spring (22), wherein the spring (22) is located between the first rod (101) and the third rod (103), one end of the spring (22) is connected with the inner wall of the cylinder (2), and the other end of the spring (22) is connected with the third rod (103).
6. An actively protected headrest apparatus as claimed in claim 4, wherein: the cylinder displacement sensor (21) is located between the first rod (101) and the third rod (103).
7. An actively protected headrest apparatus as claimed in claim 6, wherein: still include buffer block (23), buffer block (23) are located third pole (103) with between gas charging equipment (6), buffer block (23) are fixed in the inner wall of cylinder (2).
8. An actively protected headrest apparatus as claimed in claim 1, wherein: the vehicle headrest system is characterized by further comprising a headrest rod (8), wherein one end of the headrest rod (8) extends into the headrest fixing part (12), the other end of the headrest rod (8) extends out of the headrest fixing part (12), the occupant head displacement sensor (9) is located on the headrest rod (8), and the occupant head displacement sensor (9) is located between the headrest moving part (11) and the headrest rod (8).
9. An actively protected headrest apparatus as claimed in claim 1, wherein: the headrest fixing part (12) is connected with the inflation equipment (6) through an inflation tube (5), and an inflation valve is arranged in the inflation tube (5).
10. An actively protected headrest apparatus as claimed in claim 9, wherein: the air release pipes (7) are two, the two air release pipes (7) are respectively located on two sides of the air cylinder (2), air release valves are arranged in the air release pipes (7), and the inflation valves and the air release valves are electrically connected with the controller (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010242433.3A CN111319532A (en) | 2020-03-31 | 2020-03-31 | Headrest device with active protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010242433.3A CN111319532A (en) | 2020-03-31 | 2020-03-31 | Headrest device with active protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111319532A true CN111319532A (en) | 2020-06-23 |
Family
ID=71167912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010242433.3A Pending CN111319532A (en) | 2020-03-31 | 2020-03-31 | Headrest device with active protection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111319532A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113771715A (en) * | 2021-08-31 | 2021-12-10 | 浙江零跑科技股份有限公司 | Seat structure with auxiliary headrest |
| CN115257490A (en) * | 2022-06-22 | 2022-11-01 | 廊坊市金色时光科技发展有限公司 | Composite adjusting type head supporting device |
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| US6568754B1 (en) * | 2000-10-30 | 2003-05-27 | Ford Global Technologies, Llc | Expandable, redeployable automotive headrest |
| KR20040088221A (en) * | 2003-04-09 | 2004-10-16 | 현대모비스 주식회사 | Seat having a head-rest of length variable |
| CN1799901A (en) * | 2004-12-08 | 2006-07-12 | 格瑞玛股份公司 | Vehicle seat headrest |
| WO2009126149A1 (en) * | 2008-04-08 | 2009-10-15 | Lear Corporation | Active head restraint system for a vehicle seat |
| CN202251213U (en) * | 2011-09-09 | 2012-05-30 | 宁波利达气动成套有限公司 | Rotation-preventing cylinder |
| CN105235561A (en) * | 2015-10-26 | 2016-01-13 | 成都云科新能汽车技术有限公司 | Method for adjusting automobile seat headrest with protection function |
| WO2019174987A1 (en) * | 2018-03-13 | 2019-09-19 | Bayerische Motoren Werke Aktiengesellschaft | Head restraint of a vehicle seat |
| CN212073818U (en) * | 2020-03-31 | 2020-12-04 | 中国汽车技术研究中心有限公司 | Headrest device with active protection function |
-
2020
- 2020-03-31 CN CN202010242433.3A patent/CN111319532A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6568754B1 (en) * | 2000-10-30 | 2003-05-27 | Ford Global Technologies, Llc | Expandable, redeployable automotive headrest |
| KR20040088221A (en) * | 2003-04-09 | 2004-10-16 | 현대모비스 주식회사 | Seat having a head-rest of length variable |
| CN1799901A (en) * | 2004-12-08 | 2006-07-12 | 格瑞玛股份公司 | Vehicle seat headrest |
| WO2009126149A1 (en) * | 2008-04-08 | 2009-10-15 | Lear Corporation | Active head restraint system for a vehicle seat |
| CN202251213U (en) * | 2011-09-09 | 2012-05-30 | 宁波利达气动成套有限公司 | Rotation-preventing cylinder |
| CN105235561A (en) * | 2015-10-26 | 2016-01-13 | 成都云科新能汽车技术有限公司 | Method for adjusting automobile seat headrest with protection function |
| WO2019174987A1 (en) * | 2018-03-13 | 2019-09-19 | Bayerische Motoren Werke Aktiengesellschaft | Head restraint of a vehicle seat |
| CN212073818U (en) * | 2020-03-31 | 2020-12-04 | 中国汽车技术研究中心有限公司 | Headrest device with active protection function |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113771715A (en) * | 2021-08-31 | 2021-12-10 | 浙江零跑科技股份有限公司 | Seat structure with auxiliary headrest |
| CN115257490A (en) * | 2022-06-22 | 2022-11-01 | 廊坊市金色时光科技发展有限公司 | Composite adjusting type head supporting device |
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