KR100501518B1 - Shock absorber of head rest for vehicle - Google Patents
Shock absorber of head rest for vehicle Download PDFInfo
- Publication number
- KR100501518B1 KR100501518B1 KR10-2002-0064399A KR20020064399A KR100501518B1 KR 100501518 B1 KR100501518 B1 KR 100501518B1 KR 20020064399 A KR20020064399 A KR 20020064399A KR 100501518 B1 KR100501518 B1 KR 100501518B1
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- KR
- South Korea
- Prior art keywords
- headrest
- seatback
- head
- vehicle
- shock absorber
- Prior art date
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- 230000035939 shock Effects 0.000 title claims abstract description 20
- 239000006096 absorbing agent Substances 0.000 title claims abstract description 17
- 238000001514 detection method Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims 1
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 208000014674 injury Diseases 0.000 description 3
- 208000028373 Neck injury Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 235000013527 bean curd Nutrition 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
- B60R21/0136—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to actual contact with an obstacle, e.g. to vehicle deformation, bumper displacement or bumper velocity relative to the vehicle
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- 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
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/0224—Non-manual adjustments, e.g. with electrical operation
- B60N2/0244—Non-manual adjustments, e.g. with electrical operation with logic circuits
- B60N2/0272—Non-manual adjustments, e.g. with electrical operation with logic circuits using sensors or detectors for detecting the position of seat parts
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- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/015—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
- B60R21/01512—Passenger detection systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
- B60R21/207—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in vehicle seats
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R2021/0002—Type of accident
- B60R2021/0004—Frontal collision
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R2021/0002—Type of accident
- B60R2021/0011—Rear collision or recoiling bounce after frontal collision
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R2021/003—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks characterised by occupant or pedestian
- B60R2021/0032—Position of passenger
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R2021/003—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks characterised by occupant or pedestian
- B60R2021/0039—Body parts of the occupant or pedestrian affected by the accident
- B60R2021/0048—Head
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
- B60R21/207—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in vehicle seats
- B60R2021/2074—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in vehicle seats in head rests
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2400/00—Special features of vehicle units
- B60Y2400/30—Sensors
- B60Y2400/304—Acceleration sensors
- B60Y2400/3042—Collision sensors
Abstract
본 발명은 자동차의 추돌 및 충돌시 운전자 및 탑승자의 목에 가해지는 충격을 완충, 완화시킬 수 있도록 발명된 자동차의 헤드레스트 완충장치에 관한 것이다.The present invention relates to a headrest shock absorber of a vehicle invented to cushion and mitigate an impact applied to a neck of a driver and a passenger during a collision and a collision of a vehicle.
본 발명은 시트백 힌지부에 각도 센서를 내장하여 두부와 헤드레스트가의 갭을 추산한 후, 헤드레스트에 내장되어 있는 에어백의 점화시키는 인플레이터의 수를 조절하여 원하는 양만큼 부풀릴 수 있는 것을 특징으로 한다.The present invention is characterized by the built-in angle sensor in the seatback hinge to estimate the gap between the head and the headrest, and then inflates the desired amount by adjusting the number of ignited inflators of the airbag built into the headrest. do.
Description
본 발명은 자동차의 헤드레스트 완충장치에 관한 것으로, 더욱 상세하게는 시트백 힌지부에 센서를 내장하여 시트백의 각도를 검출하고, 그 검출된 데이터는 ECU로 보내지고, 상기 ECU에는 시트백 각도별 두부와 헤드레스트간의 갭 데이터가 사전에 입력되어 있어서, 그 상황에 맞게 두부와 헤드레스트간의 갭을 추산해낸다.The present invention relates to a head restraint shock absorber of a vehicle, and more particularly, a sensor embedded in a seat back hinge to detect an angle of a seat back, and the detected data is sent to an ECU, and the ECU has a head for each seat back angle. The gap data between the headrests is input in advance, and the gap between the head and the headrest is estimated according to the situation.
한편, 차량내에는 추돌 감지 센서가 내장되어 있어 사고 발생을 감지할 수 있다.Meanwhile, a collision detection sensor is built in the vehicle to detect an accident.
헤드레스트에는 두부를 보호할 수 있는 에어백이 내장되어 있고, 상기 에어백은 시트백에 내장되어 있는 인플레이터에 의해서 작동하게 된다. 상기 인플레이터에는 원하는 조절 단수 만큼의 작은 인플레이터들이 서지 탱크부에 연결되어 있어서 ECU는 각도 센서의 감지값에 의해 두부와 헤드레스트간의 갭을 추산하고 미리 에어백의 팽창량을 결정하고 있다가, 사고 발생시 점화되는 인플레이터 수를 조절하여 원하는 만큼만 에어백을 팽창 시킬 수 있는 차량용 헤드레스트 완충장치에 관한 것이다.The headrest has a built-in airbag to protect the head, and the airbag is operated by an inflator built into the seatback. The inflator is connected to the surge tank part as small as the desired number of adjustment stages so that the ECU estimates the gap between the head and the headrest based on the detected value of the angle sensor and determines the amount of inflation of the airbag in advance. The present invention relates to a vehicle headrest shock absorber that can inflate airbags only as desired by adjusting the number of inflators.
일반적으로 자동차의 시트는 승객의 편안함을 제공하도록 쿠션제로 제작되고, 운전자 또는 승객의 편안한 자세를 위하여 설치되어 진다.In general, the seat of the vehicle is made of cushioning material to provide passenger comfort, and is installed for a comfortable posture of the driver or passenger.
이와 같은 자동차 시트는 대부분 그 상부에 운전자 또는 승객들의 목을 보호하기 위하여 헤드 레스트를 구비하게 된다.Most of these car seats have a head rest on their top to protect the neck of the driver or passengers.
도 5 는 종래 자동차 시트의 헤드레스트를 보여주는 사시도이다.5 is a perspective view showing a headrest of a conventional vehicle seat.
자동차 시트는 시트쿠션(22)과 상기 시트쿠션의 후방에 체결구로 설치되어 전후방으로 일정각도 회동되는 시트백(10)과 상기 시트백의 상단에 체결 축으로 일정길이가 상하로 조절 가능하도록 체결구로 체결하는 헤드레스트(20)로 구성된 시트로 되어 있다.The car seat is fastened to the seat cushion 22 and the seat cushion by a fastener so that a predetermined length can be adjusted up and down by a fastening shaft on the upper end of the seat back 10 and the seat back which are rotated at a predetermined angle back and forth. It is made of a sheet composed of the headrest 20.
상기 시트는 운전자의 신체조건에 따라 시트백과 헤드레스를 각각 별도의 손잡이를 조정하여 장거리 주행에 편안한 승차감을 주는 것이다.The seat is a comfortable ride for long distance driving by adjusting the separate handles of the seat back and headless according to the physical condition of the driver.
그러나, 이러한 종래의 시트구조는 후방에서 추돌 및 충돌의 발생시에 그 충격에 의해 시트에 앉은 운전자 또는 승객의 머리부위가 관성력에 의해 헤드레스트에 부딪칠 경우 시트 쿠션과 헤드레스트 내부에 구비된 쿠션재가 적은량의 충격에너지를 흡수하여 완충작용을 하였다.However, such a conventional seat structure has a cushion material provided inside the seat cushion and the headrest when the head of the driver or passenger sitting on the seat hits the headrest by inertia force when the collision and collision occur in the rear. A small amount of shock energy was absorbed and buffered.
하지만, 이것만으로 머리 부위를 보호하지 못함으로 경미한 충격에도 머리부위가 부상을 입는 문제점이 야기되었다.However, this alone does not protect the head, causing a problem of injury to the head even with a slight impact.
또한, 인체의 머리부위를 지지하기 위하여 설치된 헤드레스트는 목의 부상방지와 편안함을 주기 위해 설치되었지만 갑작스러운 추돌 및 충돌로 인해서 발생하는 충격을 효과적으로 흡수하지 못하고, 목이 뒤방향으로 꺾이는 부상의 위험이 항상 뒤따르고 있으므로 운전자 또는 승객들의 대비가 절실한 실정이었다.In addition, the headrest installed to support the head of the human body is installed to prevent neck injuries and comfort, but does not effectively absorb shocks caused by sudden collisions and collisions, and there is a risk of injury that the neck is bent backwards. Since it always follows, the driver or passengers were in desperate need.
이에 종래에는, 도 6, 도 7 에서 도시한 바와 같이, 시트백 내부에 내장되어 있는 시트백 프레임에 슬롯(51,52)을 형성하고, 헤드레스트 프레임(15)에 가이드축(53)을 형성하여 상기 슬롯(51,52)에 결착하며, 추진 장치(56)를 상기 헤드레스트 프레임의 지지대(55)의 전방 위치에 고정함으로써, 자동차 후방 추돌 사고시에 상기 추진 장치(56)의 추진부재(57)가 상기 지지대에 충격을 가하면 헤드레스트(20)가 전측 상방으로 이동하게 되어 탑승자의 머리와 헤드레스트의 간격을 최소화함으로써, 탑승자의 머리가 뒤로 젖혀지는 것을 막아주어 목부상을 방지할 수 있는 헤드레스트 완충장치가 발명되었다.In the related art, as illustrated in FIGS. 6 and 7, slots 51 and 52 are formed in the seatback frame embedded in the seatback, and guide shafts 53 are formed in the headrest frame 15 to form the guide shaft 53. The propulsion member 57 of the propulsion device 56 in the event of an automobile rear collision is fixed by fixing the propulsion device 56 to the front position of the support 55 of the headrest frame. When the shock is applied to the support, the headrest 20 is moved upwards and upwards to minimize the gap between the headrest of the occupant and the headrest, thereby preventing the head of the occupant from being leaned back to prevent neck injuries. The device was invented.
그러나, 상기와 같은 종래 헤드레스트 완충장치는 시트백 기울기에 의한 승객의 머리와 헤드레스트간의 거리 변화를 고려하지 못하고(착좌 자세에서 시트백의 기울기가 수직 방향으로 세워지면 두부와 헤드레스트간의 갭이 축소되고 반대로 눕히면 갭이 증가된다) 기계적으로 작동거리가 결정되어서 시트백이 세워진 상태, 즉 두부와 헤드레스트간의 갭이 축소 된 상태에서 추돌사고 발생시 전진되는 헤드레스트에 의해 상해를 입을 수 있는 문제점이 발생하였다.However, the conventional headrest shock absorber as described above does not consider the change of the distance between the head of the passenger and the headrest due to the seatback inclination (when the seatback inclination is set in the vertical direction, the gap between the head and the headrest is reduced. On the contrary, the gap is increased.) The working distance is determined mechanically, and the seatback is erected, that is, the headrest that is advanced in the event of a collision in the state where the gap between the head and the headrest is reduced may cause injury.
따라서, 본 발명은 상기와 같은 기존의 차량용 헤드레스트 완충장치에서 발생하는 단점을 해결하고자 한 것으로서, 시트백 힌지부에 센서를 내장하여 시트백의 각도를 검출하고, 그 검출된 데이터는 ECU로 보내지고, 상기 ECU에는 시트백 각도별 두부와 헤드레스트간의 갭 데이터가 사전에 입력되어 있어서, 그 상황에 맞게 두부와 헤드레스트간의 갭을 추산해낸다.Therefore, the present invention is to solve the disadvantages that occur in the conventional vehicle headrest shock absorber as described above, the built-in sensor in the seat back hinge to detect the angle of the seat back, the detected data is sent to the ECU, In the ECU, the gap data between the head and the headrest for each seatback angle is input in advance, and the gap between the head and the headrest is estimated according to the situation.
한편, 차량내에는 추돌 감지 센서가 내장되어 있어 사고 발생을 감지할 수 있고,Meanwhile, a collision detection sensor is built in the vehicle to detect an accident.
헤드레스트에는 두부를 보호할 수 있는 에어백이 내장되어 있고, 상기 에어백은 시트백에 내장되어 있는 인플레이터에 의해서 작동하게 된다. 상기 인플레이터에는 원하는 조절 단수 만큼의 작은 인플레이터들이 서지 탱크부에 연결되어 있어서 ECU는 각도 센서의 감지값에 의해 두부와 헤드레스트간의 갭을 추산하고 미리 에어백의 팽창량을 결정하고 있다가, 사고 발생시 점화되는 인플레이터 수를 조절하여 원하는 만큼만 에어백을 팽창 시킬 수 있는 구조로 두부의 위치에 따라 적절한 에어백 팽창량을 조절하여 효과적으로 두부를 보호할 수 있고, 시트백 각도별로 에어백 팽창량을 조절할 수 있는 차량용 헤드레스트 완충장치 제공하는데 그 목적이 있다. The headrest has a built-in airbag to protect the head, and the airbag is operated by an inflator built into the seatback. The inflator is connected to the surge tank part as small as the desired number of adjustment stages so that the ECU estimates the gap between the head and the headrest based on the detected value of the angle sensor and determines the amount of inflation of the airbag in advance. By controlling the number of inflators, the airbag can be inflated as much as you want. It can effectively protect the head by adjusting the proper airbag inflation amount according to the position of the head. The purpose is to provide a device.
본 발명은 차량용 헤드레스트 완충장치에 관한 것으로, 시트백 힌지부에 각도 센서를 내장하여 두부와 헤드레스트가의 갭을 추산한 후, 헤드레스트에 내장되어 있는 에어백의 점화시키는 인플레이터의 수를 조절하여 원하는 양만큼 부풀릴 수 있는 것을 특징으로 한다.The present invention relates to a vehicle headrest shock absorber, comprising a built-in angle sensor in the seatback hinge to estimate the gap between the head and the headrest, and then adjust the number of inflators to ignite the airbag built into the headrest. It is characterized by being inflatable by an amount.
이하, 본 발명은 첨부한 도면을 참조로 상세하게 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
도 1 은 본 발명에 따른 차량용 헤드레스트 완충장치가 설치된 상태를 개략적으로 도시한 단면도이다.1 is a cross-sectional view schematically showing a state in which a vehicle headrest shock absorber according to the present invention is installed.
도 1 에서 도시한 바와 같이, 자동차 시트백(10) 힌지부에 시트백(10)의 각도를 검출할 수 있는 시트백 각도 센서(4)가 내장되어 있다.As shown in FIG. 1, a seatback angle sensor 4 capable of detecting the angle of the seatback 10 is built in the hinge portion of the automobile seatback 10.
상기 시트백 각도 센서(4)에서 검출된 데이터는 ECU(15)로 보내지고, 상기 ECU(15)에는 시트백(10) 각도별 두부(30)와 헤드레스트간의 갭(a,b) 데이터가 사전에 입력되어 있어서, 그 상황에 맞게 두부(30)와 헤드레스트간(20)의 갭을 추산해낸다.The data detected by the seatback angle sensor 4 is sent to the ECU 15, and the ECU 15 previously stores gap (a, b) data between the head 30 and the headrest for each seatback 10 angle. The gap between the head 30 and the headrest 20 is estimated according to the situation.
한편, 차량내에는 추돌 감지 센서(40)가 내장되어 있어 사고 발생을 감지할 수 있다.On the other hand, the collision detection sensor 40 is built in the vehicle can detect the occurrence of an accident.
헤드레스트(20)에는 두부(30)를 보호할 수 있는 에어백(2)이 내장되어 있고, 상기 에어백(2)은 시트백(10)에 내장되어 있는 인플레이터(7,8,9)에 의해서 작동하게 된다.The headrest 20 has a built-in airbag 2 to protect the head 30, and the airbag 2 is operated by the inflators 7, 8, 9 embedded in the seatback 10. do.
상기 인플레이터(7,8,9)에는 원하는 조절 단수 만큼의 작은 인플레이터(7,8,9)들이 서지 탱크부(6)에 연결되어 있다.The inflators 7, 8, 9 are connected to the surge tank 6 with as small inflators 7, 8, 9 as the desired number of adjustment stages.
상기 서지 탱크부(6)는 시트백(20) 내부와 헤드레스트(20) 내부의 관(12)을 통하여 인플레이터(7,8,9)의 점화로 발생된 가스를 에어백(2)으로 보낸다.The surge tank 6 sends the gas generated by the ignition of the inflators 7, 8, 9 to the airbag 2 through the tube 12 inside the seatback 20 and inside the headrest 20.
ECU(15)는 각도 센서의 감지값에 의해 두부(30)와 헤드레스트간(30)의 갭을 추산하고 미리 에어백(2)의 팽창량을 결정하고 있다가, 사고 발생시 점화되는 인플레이터(7,8,9) 수를 조절하여 원하는 만큼만 에어백(2)을 팽창 시킬 수 있다.The ECU 15 estimates the gap between the head 30 and the headrest 30 based on the detected value of the angle sensor, determines the inflation amount of the airbag 2 in advance, and then inflate the ignition in the event of an accident. 8,9) You can inflate the airbag 2 only as much as you want by adjusting the number.
즉 점화되는 인플레이터(7,8,9) 수를 조절하면 발생하는 가스량이 조절되어 에어백(2)의 팽창량을 조절할 수 있다.That is, by adjusting the number of ignited inflators (7, 8, 9) it is possible to adjust the amount of gas generated to adjust the inflation amount of the airbag (2).
도 2, 도 3 은 시트백의 각도에 따라 두부와 헤드레스트 사이의 갭의 상태를 도시한 단면도이다.2 and 3 are cross-sectional views showing the state of the gap between the head and the headrest according to the angle of the seatback.
도 3 에서 도시한 바와같이 착좌 자세에서 시트백(10)의 기울기가 수직 방향으로 세워지면 두부(30)와 헤드레스트(20)간의 갭(b)이 축소되고, 도 2 에서 도시한 바와 같이 착좌 자세에서 시트백(10)을 뒤로 눕히면 갭(a)이 증대된다.As shown in FIG. 3, when the inclination of the seatback 10 is erected in the vertical direction in the seating position, the gap b between the head 30 and the headrest 20 is reduced, and the seating position as shown in FIG. 2. When the seatback 10 is laid back at, the gap a increases.
따라서, 본 발명에 따른 차량용 헤드레스트 완충장치는 두부의 위치에 따라 적절한 에어백 팽창량을 조절하여 효과적으로 두부를 보호할 수 있고, 시트백 각도별로 에어백 팽창량을 조절할 수 있다.Therefore, the vehicle headrest shock absorber according to the present invention can effectively protect the head by adjusting the appropriate airbag inflation amount according to the position of the head, and can adjust the airbag inflation amount for each seatback angle.
첨부한 도 4 를 참조로 본 발명에 따른 차량용 헤드레스트 완충장치 작동 순서를 설명하면 다음과 같다.Referring to the accompanying Figure 4, the operation of the vehicle headrest shock absorber according to the present invention will be described.
시트백에 내장되어 있는 시트백 각도 센서에서 시트백의 각도를 검출하면(100), 상기 검출된 데이터와 시트백 각도별로 두부와 헤드레스트간의 갭 데이터가 ECU로 보내진다(110).When the angle of the seatback is detected by the seatback angle sensor embedded in the seatback (100), the gap data between the head and the headrest is transmitted to the ECU by the detected data and the seatback angle (110).
그후, ECU는 상기 데이터로 두부와 헤드레스트간의 갭을 추산하고(120), 사고 발생시 점화시킬 인플레이터의 수를 결정하게 된다(130).The ECU then estimates the gap between the head and the headrest with the data (120) and determines the number of inflators to ignite in the event of an accident (130).
다음으로, 사고가 발생하게 되면 추돌감지 센서에서 사고 발생을 감지하여 그 신호를 ECU로 보내면(140), ECU는 두부와 헤드레스트 사이의 갭의 상태에 따라 인플레이터를 점화시켜(150), 에어백을 팽창시켜 두부를 보호하게 된다(160).Next, when an accident occurs, the collision detection sensor detects the occurrence of the accident and sends the signal to the ECU (140), the ECU ignites the inflator according to the state of the gap between the head and the headrest (150), the airbag Inflated to protect the head (160).
이상에서 본 바와 같이, 본 발명에 따른 차량용 헤드레스트 완충장치에 의하면, 시트백 힌지부에 각도 센서를 내장하여 두부와 헤드레스트가의 갭을 추산한 후, 헤드레스트에 내장되어 있는 에어백의 점화시키는 인플레이터의 수를 조절하여 원하는 양만큼 부풀릴 수 있는 구조로서, As described above, according to the vehicle headrest shock absorber according to the present invention, the angle sensor is built into the seatback hinge to estimate the gap between the head and the headrest, and then inflates the airbag embedded in the headrest. The structure can be inflated by the desired amount by adjusting the number of,
사고 발생시 점화되는 인플레이터 수를 조절하여 원하는 만큼만 에어백을 팽창 시킬 수 있는 구조로 두부의 위치에 따라 적절한 에어백 팽창량을 조절하여 효과적으로 두부를 보호할 수 있고, 시트백 각도별로 에어백 팽창량을 조절할 수 있다. The inflator can be inflated as much as you want by adjusting the number of inflators to be ignited in case of an accident. It can effectively protect the head by adjusting the proper airbag inflation amount according to the position of the head, and the airbag inflation amount can be adjusted for each seatback angle.
도 1 은 본 발명에 따른 차량용 헤드레스트 완충장치가 설치된 상태를 개략적으로 도시한 단면도1 is a cross-sectional view schematically showing a state in which the vehicle headrest shock absorber according to the present invention is installed
도 2, 도 3 은 시트백의 각도에 따라 두부와 헤드레스트 사이의 갭의 상태를 도시한 단면도2 and 3 are cross-sectional views showing the state of the gap between the head and the headrest according to the angle of the seatback.
도 4 은 본 발명에 따른 차량용 헤드레스트 완충장치 작동 순서를 도시한 블록도Figure 4 is a block diagram showing the operation sequence of the vehicle headrest shock absorber according to the invention
도 5 는 종래의 자동차 시트의 헤드레스트를 보여주는 사시도5 is a perspective view showing a headrest of a conventional car seat
도 6, 도 7 은 종래 발명에 따른 차량용 헤드레스트 완충장치의 작동 상태를 나타내기 위해 도시한 작동도6 and 7 is an operation diagram shown to show the operating state of the vehicle headrest shock absorber according to the prior invention
〈도면의 주요부분에 대한 부호 설명〉<Explanation of symbols on the main parts of the drawing>
2 : 에어백 4 : 시트백 각도 센서2: airbag 4: seatback angle sensor
6 : 서지 탱크 7,8,9 : 인플레이터6: surge tank 7,8,9: inflator
10 : 시트백 15 : ECU10: seatback 15: ECU
20 : 헤드레스트 30 : 두부20: headrest 30: tofu
40 : 추돌 감지 센서 51,52 : 슬롯40: collision detection sensor 51,52: slot
53 : 가이드축 54 : 충돌 감지 센서53: guide axis 54: collision detection sensor
55 : 헤드레스트 프레임 56 : 추진장치55 headrest frame 56 propulsion device
57 : 추진부재57: propulsion member
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2002-0064399A KR100501518B1 (en) | 2002-10-22 | 2002-10-22 | Shock absorber of head rest for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2002-0064399A KR100501518B1 (en) | 2002-10-22 | 2002-10-22 | Shock absorber of head rest for vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20040035309A KR20040035309A (en) | 2004-04-29 |
| KR100501518B1 true KR100501518B1 (en) | 2005-07-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR10-2002-0064399A KR100501518B1 (en) | 2002-10-22 | 2002-10-22 | Shock absorber of head rest for vehicle |
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| Country | Link |
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| KR (1) | KR100501518B1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100568147B1 (en) * | 2004-06-11 | 2006-04-05 | 현대모비스 주식회사 | Apparatus installed in a headrest of automobiles for protecting a neck |
| KR101510943B1 (en) * | 2013-08-13 | 2015-04-10 | 한국오므론전장주식회사 | Method for adjusting position of headrest |
| CN107901801B (en) * | 2017-12-05 | 2023-06-09 | 杭州琴侣高新技术有限公司 | Light safety seat capable of damping and adjusting space for helping sleep |
| KR102214276B1 (en) | 2019-09-27 | 2021-02-09 | 공주대학교 산학협력단 | A headrest for cars using magnetic rheological elastomer |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6030036A (en) * | 1996-02-02 | 2000-02-29 | Trw Occupant Restraint Systems Gmbh | Vehicle seat with gas bag located in the back rest |
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2002
- 2002-10-22 KR KR10-2002-0064399A patent/KR100501518B1/en not_active IP Right Cessation
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6030036A (en) * | 1996-02-02 | 2000-02-29 | Trw Occupant Restraint Systems Gmbh | Vehicle seat with gas bag located in the back rest |
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