KR20030060284A - tilting apparatus of headrest - Google Patents

tilting apparatus of headrest Download PDF

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Publication number
KR20030060284A
KR20030060284A KR1020020000912A KR20020000912A KR20030060284A KR 20030060284 A KR20030060284 A KR 20030060284A KR 1020020000912 A KR1020020000912 A KR 1020020000912A KR 20020000912 A KR20020000912 A KR 20020000912A KR 20030060284 A KR20030060284 A KR 20030060284A
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KR
South Korea
Prior art keywords
headrest
gear
stay
drive motor
drive
Prior art date
Application number
KR1020020000912A
Other languages
Korean (ko)
Other versions
KR100455530B1 (en
Inventor
정해일
Original Assignee
주식회사 대동오토사운드
주식회사 우보테크
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Priority to KR10-2002-0000912A priority Critical patent/KR100455530B1/en
Publication of KR20030060284A publication Critical patent/KR20030060284A/en
Application granted granted Critical
Publication of KR100455530B1 publication Critical patent/KR100455530B1/en

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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
    • B60N2/838—Tiltable
    • B60N2/853—Tiltable characterised by their adjusting mechanisms, e.g. electric motors
    • 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
    • B60N2/02246—Electric motors therefor
    • B60N2/02253—Electric motors therefor characterised by the transmission between the electric motor and the seat or seat parts
    • 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
    • B60N2/0226—User interfaces specially adapted for seat adjustment
    • B60N2/0228—Hand-activated mechanical switches
    • 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
    • B60N2/865—Head-rests movable or adjustable providing a fore-and-aft movement with respect to the occupant's head
    • 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
    • B60N2/879—Head-rests with additional features not related to head-rest positioning, e.g. heating or cooling devices or loudspeakers
    • 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
    • B60R21/013—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
    • 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
    • B60Y2400/301—Sensors for position or displacement
    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Human Computer Interaction (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Seats For Vehicles (AREA)

Abstract

PURPOSE: A device for tilting a headrest is provided to prevent a passenger from being injured in the neck part and the head part by rotating the headrest forward at high speed through drive of a motor according to a detection signal when a collision occurs or a vehicle approaches an obstacle. CONSTITUTION: A device for tilting a headrest(10) has a driving motor built in a housing(M) combined to a horizontal bar(A) of a stay and received in a space part of the headrest; a turning device(16) turning the housing forward and backward around the horizontal; and an ECU(Electronic Control Unit) applying driving power source, to rotate the driving motor at low speed in case of a manual operation signal input by a user and at high speed in case of emergency operation signal input by a detection signal from one of collision-sensing sensors and a distance-sensing sensor. In the turning device, More than one reduction gear is engaged between a driving gear fixed to the driving motor and a sector gear fixed to the horizontal bar.

Description

헤드레스트 틸팅장치{tilting apparatus of headrest}Tilting apparatus of headrest

본 발명은 주행중 충돌발생시 또는 장애물에 대해 근접시 이의 검출신호에 따라 모터의 구동으로 헤드레스트를 전방으로 고속회동시켜 탑승자의 목부위를 보호할 수 있도록 한 헤드레스트 틸팅장치에 관한 것이다.The present invention relates to a headrest tilting device that can protect the neck of the occupant by rotating the headrest at a high speed forward by the driving of the motor in response to a detection signal when a collision occurs or close to an obstacle while driving.

더욱 상세하게는, 운전자에 의한 수동조작 신호에는 저속으로, 주행중 충돌감지센서 또는 거리감지센서의 검출신호에 의한 긴급조작신호 입력시에는 고속으로 구동모터를 회전시켜 헤드레스트를 전방으로 고속회동시켜 탑승자의 목 및 머리부위의 부상을 방지할 수 있도록 한 틸팅장치에 관한 것이다.More specifically, the driver may rotate at a high speed by rotating the driving motor at high speed when the emergency operation signal is input at a low speed to a manual operation signal by the driver and a detection signal of a collision detection sensor or a distance detection sensor while driving. It relates to a tilting device to prevent injury to the neck and head.

일반적으로, 차종에 따라 모니터를 차량 내부의 인스트루먼트 패널에 설치하거나 또는 운전석과 조수석사이의 중앙위치에 장착되는 콘솔박스에 설치하는 경우, 뒷좌석의 탑승자가 모니터닝하기 위해서는 앉은 상태에서 몸의 중심을 중앙으로 향하고 전방으로 숙이게되므로 자세가 불완전하여 피로도를 가중시키며, 모니터의 설치로 인해 차량의 실내공간이 더욱 좁아지는 문제점을 갖게 된다.In general, when the monitor is installed in the instrument panel inside the vehicle or in the console box mounted at the center position between the driver's seat and the passenger seat, the center of the body of the rear seat is centered while sitting Because it is leaned forward and leans forward, the posture is incomplete, which increases the fatigue degree, and the installation of the monitor has a problem that the interior space of the vehicle is further narrowed.

따라서, 본 발명의 목적은, 운전자에 의한 수동조작 신호 입력시 모터의 저속회전으로 헤드레스트를 회동시켜 운전자에게 편의성을 제공하며, 충돌 등의 긴급조작신호 입력시 헤드레스트를 고속으로 회동시켜 탑승자의 목 및 머리부위의 부상을 방지할 수 있도록 한 헤드레스트 틸팅장치를 제공하는 것이다.Accordingly, an object of the present invention is to provide a convenience to the driver by rotating the headrest at a low speed rotation of the motor when the manual operation signal input by the driver, and to rotate the headrest at high speed during the input of an emergency operation signal such as a collision. To provide a headrest tilting device to prevent neck and head injuries.

본 발명의 다른 목적은, 모터의 회전력을 감속하여 헤드레스트를 회동시키는 감속장치에 의해 모터의 정지시 외력에 의해 헤드레스트의 회동되는 것을 방지하여 탑승자의 머리 및 목부위를 보호할 수 있도록 한 틸팅장치를 제공하는 것이다.Another object of the present invention is to reduce the rotational force of the motor to rotate the headrest by the reduction device to prevent the headrest of the headrest by the external force when the motor is stopped when the tilting to protect the head and neck of the occupant To provide a device.

본 발명의 또 다른 목적은, 헤드레스트 이면에 모니터가 전후방향으로 회동가능하게 힌지고정되어 앞좌석의 헤드레스트가 회동되는 경우에도 뒷좌석의 탑승자가 편한 자세에서 용이하게 모니터링할 수 있고, 차내의 좁은 공간을 효율적으로 활용할 수 있도록 한 틸팅장치를 제공하는 것이다.Still another object of the present invention is that the monitor is pivotally fixed to the back of the headrest in a forward and backward direction so that even when the headrest of the front seat is rotated, the occupant of the rear seat can easily monitor in a comfortable posture, It is to provide a tilting device to make efficient use of space.

도 1은 본 발명에 의한 헤드레스트 틸팅장치의 개략적인 분리사시도,1 is a schematic exploded perspective view of a headrest tilting device according to the present invention;

도 2는 본 발명에 의한 헤드레스트 틸팅장치의 블럭도,2 is a block diagram of a headrest tilting apparatus according to the present invention;

도 3은 본 발명에 의한 헤드레스트 틸팅장치에서 감속장치의 일부절취사시도,3 is a partial cutaway perspective view of the speed reduction device in the headrest tilting device according to the present invention;

도 4는 본 발명에 의한 헤드레스트 틸팅장치의 사용상태를 나타내는 개략도,4 is a schematic view showing a state of use of the headrest tilting device according to the present invention,

도 5는 본 발명에 의한 헤드레스트를 틸팅시키는 구동모터에 전원을 공급하는 수단을 나타내는 개략도,5 is a schematic diagram showing a means for supplying power to a drive motor for tilting a headrest according to the present invention;

도 6은 본 발명에 의한 헤드레스트 틸팅장치에서 다른 감속장치의 일부절취사시도,Figure 6 is a partial cutaway perspective view of another reduction device in the headrest tilting device according to the present invention,

도 7은 본 발명의 다른 실시예에 의해 구동모터에 전원을 공급하는 수단의 개략도 이다.7 is a schematic diagram of a means for supplying power to a drive motor according to another embodiment of the invention.

*도면중 주요 부분에 사용된 부호의 설명* Explanation of symbols used in the main part of the drawing

10; 헤드레스트10; Headrest

11; 구동모터11; Drive motor

14; 섹터기어14; Sector gear

15,15a; 스테이부재15,15a; Stay member

16; 회동장치16; Rotator

17a,17b; 충돌감지센서17a, 17b; Collision Detection Sensor

18; 전자제어장치(ECU)18; Electronic Control Unit (ECU)

19a,19b; 리미트스위치19a, 19b; Limit switch

20; 모니터 수납홈20; Monitor slot

21; 모니터21; monitor

전술한 본 발명의 목적은, 하측이 등받이 상단에 매설되며 상측이 헤드레스트에 매설되어 헤드레스트를 등받이에 대해 승강시키는 스테이를 구비하는 헤드레스트에 있어서,An object of the present invention described above, in the headrest having a stay is buried in the upper end of the lower back and the upper side is buried in the headrest to lift the headrest relative to the backrest,

스테이의 수평바(A)에 결합되어 상기 헤드레스트(10)의 공간부에 수용되는 하우징(M)에 내장되는 구동모터(11)와, 구동모터(11)에 축고정된 구동기어(11a)와 수평바(A)에 고정된 섹터기어(14)사이에 하나 이상의 감속기어가 치합되어하우징(M)을 수평바(A)를 중심축으로하여 전후방으로 회동시키는 회동장치(16)와, 사용자의 수동 조작신호 입력시에는 저속으로, 차량의 충돌감지센서(17a,17b) 및 거리감지센서(17c)중 어느 하나로부터의 검출신호에 의한 긴급조작신호 입력시에는 고속으로 구동모터(11)를 회전시키도록 구동전원을 인가하는 전자제어장치(18)를 구비하는 것을 특징으로 하는 헤드레스트의 틸팅장치를 제공함에 의해 달성된다.Drive motor 11 is coupled to the horizontal bar (A) of the stay is embedded in the housing (M) accommodated in the space portion of the headrest 10 and the drive gear (11a) fixed to the drive motor 11 And one or more reduction gears are engaged between and the sector gear 14 fixed to the horizontal bar A to rotate the housing M back and forth with the horizontal bar A as the center axis. The drive motor 11 is rotated at a high speed when the manual operation signal is input, and at a high speed when an emergency operation signal is inputted by a detection signal from any one of the vehicle collision detection sensors 17a and 17b and the distance detection sensor 17c. It is achieved by providing a tilting device for the headrest, characterized in that it comprises an electronic control device 18 for applying a driving power source.

이하, 본 발명의 헤드레스트 틸팅장치를 첨부도면을 참조하여 상세하게 설명하되, 이는 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자가 용이하게 실시할 수 있을 정도로 상세하게 설명하기 위한 것이지, 이로 인해 본 발명의 기술적인 사상 및 범주가 한정되는 것을 의미하지는 않는 것이다.Hereinafter, the headrest tilting device of the present invention will be described in detail with reference to the accompanying drawings, which are intended to be described in detail so that those skilled in the art can easily carry out the present invention. It does not mean that the technical spirit and scope of the present invention is limited.

도 1 내지 도 5에 도시된 바와 같이, 본 발명은 등받이의 상단에 헤드레스트가 역U자형상의 스테이에 의해 수직방향으로 승강가능하게 장착되어 탑승자의 머리부를 받쳐주는 헤드레스트에 적용되며, 이들은 당해분야에서 공지된 기술내용에 속한다 할 것이므로 이들 구성의 상세한 설명은 생략함을 밝혀둔다.As shown in Figs. 1 to 5, the present invention is applied to a headrest that supports the head of the occupant by mounting the headrest on the upper end of the backrest in a vertical direction by an inverted U-shaped stay. It will be understood that the detailed description of these configurations will be omitted because it will belong to the known art in the field.

따라서, 본 발명에 의한 헤드레스트 틸팅장치는, 전술한 스테이의 수평바(A)에 결합되어 헤드레스트(10)의 공간부에 수용되는 하우징(M)에 내장되는 정역구동하는 구동모터(11)와, 구동모터(11)에 축고정된 구동기어(11a)와 수평바(A)에 고정된 섹터기어(14)사이에 하나 이상의 감속기어가 치합되어 수평바(A)를 중심축으로하여 헤드레스트(10)를 전후방으로 회동시키는 회동장치(16)와, 사용자에 의한 수동 조작신호 입력에 따라 구동모터(11)를 저속으로 회전시키고, 차량의 충돌감지센서(17a,17b) 및 거리감지센서(17c)중 어느 하나로부터의 검출신호에 따라구동모터(11)에 이를 고속회전시키도록 구동전원을 인가하는 전자제어장치(18)를 구비한다.Therefore, the headrest tilting device according to the present invention is coupled to the horizontal bar (A) of the stay described above, the drive motor 11 for forward and backward driving embedded in the housing (M) accommodated in the space portion of the headrest 10 And one or more reduction gears are engaged between the drive gear 11a fixed to the drive motor 11 and the sector gear 14 fixed to the horizontal bar A, so that the headrest is positioned with the horizontal bar A as the central axis. Rotating device 16 for rotating the front and rear and the driving motor 11 at a low speed in response to a manual operation signal input by a user, and collision detection sensors 17a and 17b and a distance detection sensor of the vehicle ( An electronic control device 18 is provided to apply driving power to the drive motor 11 to rotate it at high speed in accordance with a detection signal from any one of 17c).

바람직한 실시예에 의하면, 도 1 및 도 4에 도시된 바와 같이, 전술한 헤드레스트(10)뒷면에 형성된 모니터 수납홈(20)에 앞좌석의 탑승자가 헤드레스트(10)를 전후방향으로 회동시키는 경우에도 뒷좌석의 탑승자가 용이하게 모니터링할 수 있도록 모니터(21)가 전후방향으로 회동가능하게 힌지고정 된다.According to a preferred embodiment, as shown in Figures 1 and 4, the front seat occupant rotates the headrest 10 in the front and rear direction in the monitor receiving groove 20 formed on the back of the headrest 10 described above. Even in the case of the rear seat occupant, the monitor 21 is pivotally fixed to the front and rear direction so that it can be easily monitored.

도 3 및 도 6에 도시된 바와 같이, 전술한 회동장치(16)의 내부하우징(H)내측면에 섹터기어(14)측면과 대향되게 설치되어 내부하우징(M)의 회동시 섹터기어(14)의 양측면중 어느 일면과 접촉될 때 구동모터(11)의 구동전원을 차단하는 리미트스위치(19a,19b)를 구비한다. 이때 리미트스위치(19a,19b)의 구조 및 작동은 당해분야에서 이용하는 기술내용에 속한다 할 것이므로 이에 대한 상세한 설명은 생략함을 밝혀둔다.As shown in FIG. 3 and FIG. 6, the internal gear H of the above-described rotating device 16 is installed to face the side of the sector gear 14 so that the sector gear 14 when the internal housing M is rotated. And limit switches 19a and 19b for cutting off the driving power of the driving motor 11 when contacted with either one of the two sides. At this time, the structure and operation of the limit switch (19a, 19b) will belong to the technical content used in the art, so the detailed description thereof will be omitted.

도 3 및 도 6에 도시된 바와 같이, 전술한 구동기어(11a)로서 평기어 또는 워엄이 사용될 수 있다.3 and 6, a spur gear or a worm may be used as the above-described drive gear 11a.

도 4에 도시된 바와 같이, 전술한 감속기어(16b)의 축(S)에 설치되어 감속장치(16)의 회동을 검출하는 로우터리센서(RS)를 구비한다. 이때 로우터리센서(RS)는 예를들어 가변저항으로 이루어지는 것으로, 미리 설정된 각도의 범위내에서 축(S)의 회전됨에 따라 저항값이 가변된다.As shown in FIG. 4, a rotary sensor RS is installed on the shaft S of the reduction gear 16b and detects rotation of the reduction gear 16. At this time, the rotary sensor RS is made of, for example, a variable resistor, the resistance value is variable as the axis (S) is rotated within a range of a predetermined angle.

도 5에 도시된 바와 같이, 전술한 구동모터(11)에 케이블(31,32)을 통해 전기적으로 연결되는 도전체인 스테이부재(15,15a)를 전기적으로 절연하여 결합하는절연체의 이음구(25)와, 스테이부재(15,15a)를 삽입시 통전될 수 있도록 등받이(26)상단에 매설된 스테이가이드(27,28)의 통공(27a,28a)에 결합되고 전원선에 연결된 접점판(29,30)을 구비한다.As shown in FIG. 5, the insulator 25 of the insulator electrically insulating and coupling the stay members 15 and 15a, which are conductors electrically connected to the above-described driving motor 11, through the cables 31 and 32. And contact plates 29 coupled to the through holes 27a and 28a of the stay guides 27 and 28 embedded in the upper back 26 so that the stay members 15 and 15a can be energized when the stay members 15 and 15a are inserted. 30).

도 3에 도시된 바와 같이, 전술한 회동장치(16)는, 전술한 구동모터(11)에 축고정된 구동기어(11a)에 치합하는 2단형 제1감속기어(11b)와, 제1감속기어(11b)의 소기어(11c)에 치합하는 2단형 제2감속기어(16a)와, 제2감속기어(16a)의 소기어(16b)에 치합하며 섹터기어(14)에 소기어(16d)가 치합하는 2단형 제3감속기어(16b)와, 수평바(A)에 회동가능하게 결합되어 구동기어(11a),감속기어(11b,16a,16b) 및 섹터기어(14)를 수용하는 내부하우징(H)을 구비한다.As shown in FIG. 3, the above-described rotating device 16 includes a two-stage first reduction gear 11b that meshes with the driving gear 11a axially fixed to the driving motor 11 and the first reduction gear. The two-stage second reduction gear 16a meshes with the small gear 11c of the gear 11b and the small gear 16b of the second reduction gear 16a. Is coupled to the two-stage third reduction gear (16b) and the horizontal bar (A) rotatably to accommodate the drive gear (11a), the reduction gear (11b, 16a, 16b) and the sector gear (14). An inner housing (H) is provided.

도 7은 본 발명의 다른 실시예에 의해 구동모터에 전원을 공급하는 수단의 개략도로서, 등받이(26)상단에 매설된 스테이가이드(27,28)에 결합하는 스테이부재(15,15a)중, 일측 스테이부재(15)는 환봉으로 형성되며 타측 스테이부재(15a)는 속이 빈 금속파이프로서 상단이 스테이부재(15)에 용접고정됨에 따라, 등받이(26)에 매설되는 파이프인 스테이부재(15a)를 통과하는 케이블(31,32)을 통하여 헤드레스트(10)를 회동시키는 구동모터(11)에 전원을 공급할 수 있게 된다.7 is a schematic diagram of a means for supplying power to a drive motor according to another embodiment of the present invention, among the stay members 15 and 15a coupled to the stay guides 27 and 28 embedded on the upper back 26. One side stay member 15 is formed of a round bar and the other stay member 15a is a hollow metal pipe, the upper end of which is fixed to the stay member 15 by welding, the stay member 15a being a pipe embedded in the backrest 26. It is possible to supply power to the drive motor 11 for rotating the headrest 10 through the cable (31, 32) passing through.

미 설명부호 M은 회동장치(16)를 몰딩처리하여 수용하는 하우징 이다.Reference numeral M is a housing that accommodates the rotational device 16 by molding.

이하에서, 본 발명에 의한 헤드레스트 틸팅장치의 작동을 첨부도면을 참조하여 설명하면 아래와 같다.Hereinafter, the operation of the headrest tilting device according to the present invention will be described with reference to the accompanying drawings.

도 4에 도시된 바와 같이, 주행도중 또는 주차시 헤드레스트(10)를 전방으로 회동시키기 위하여 운전자에 의해 스위치(미도시됨)를 조작하는 경우, 전술한 전자제어장치(18)로 부터 구동모터(11)에 인가되는 저속전압에 의해 구동모터(11)를 저속으로 회전시켜 헤드레스트(10)를 저속으로 회동시킬 수 있게 된다.As shown in FIG. 4, when the switch (not shown) is operated by the driver to rotate the headrest 10 forward while driving or parking, the driving motor from the above-described electronic controller 18 is driven. By the low voltage applied to the (11), the drive motor 11 can be rotated at a low speed so that the headrest 10 can be rotated at a low speed.

전술한 구동모터(11)의 회전력이 구동기어(11a)에 치합되는 2단형 감속기어(11b, 16a,16b)를 통과하면서 점차적으로 감속되므로 헤드레스트(10)를 저속으로 회동시킬 수 있는 것이다.Since the rotational force of the above-described drive motor 11 is gradually decelerated while passing through the two-stage reduction gears 11b, 16a, and 16b meshed with the drive gear 11a, the headrest 10 can be rotated at a low speed.

즉, 전술한 구동모터(11)의 회전력이 구동모터(11)에 축고정된 구동기어(11a)과, 구동기어(11a)에 치합되는 감속기어(11b,16a,16b)를 통과하여 감속기어(16b)와 치합된 섹터기어(14)에 전달되면서 최종적으로 감속됨에 따라, 감속된 회전력에 의해 섹터기어(14)에 관통되어 고정된 스테이의 수평바(A)를 중심축으로하여 헤드레스트(10)를 저속으로 회동시킬 수 있는 것이다.That is, the above-mentioned rotational force of the drive motor 11 passes through the drive gear 11a fixed to the drive motor 11 and the reduction gears 11b, 16a, and 16b meshed with the drive gear 11a. As the gear is finally decelerated while being transmitted to the sector gear 14 engaged with the 16b, the headrest is formed with the horizontal axis A of the stay fixed through the sector gear 14 by the reduced rotational force as the center axis. 10) can be rotated at low speed.

이때, 도 3 및 도 4에 도시된 바와 같이, 전술한 헤드레스트(10)는 설정된 각도범위내에서 전방 또는 후방으로 회동하여 구동모터(11)에 과부하 발생하는 것을 방지할 수 있게 된다.At this time, as shown in Figures 3 and 4, the above-described headrest 10 can be prevented from overloading the drive motor 11 by rotating forward or backward within the set angle range.

즉, 섹터기어(14)의 좌우측면과 대향되게 회동장치(16)의 내부하우징(H)내측면에 설치된 리미트스위치(19a,19b)가 섹터기어(14)의 좌우측면중 어느 일측면과 접촉으로 인해 전술한 감속장치(16)의 회동하는 것을 감지하여 검출신호를 전자제어장치(18)에 보냄에 따라, 전자제어장치(18)에서 구동모터(11)에 인가되는 구동전원을 차단하게 되므로 헤드레스트(10)는 설정된 각도범위내에서 전방 또는 후방으로 회동할 수 있는 것이다.That is, the limit switches 19a and 19b provided on the inner side of the inner housing H of the rotating device 16 are in contact with one of the left and right sides of the sector gear 14 so as to face the left and right sides of the sector gear 14. As a result of detecting the rotation of the above-described deceleration device 16 and sending a detection signal to the electronic control device 18, the driving power applied to the driving motor 11 is cut off from the electronic control device 18. The headrest 10 can rotate forward or backward within a set angle range.

한편, 주행도중 차량의 전방 또는 후방에서 충돌하는 경우 이를 감지하는 충돌감지센서(17a,17b) 또는 차량 후방의 거리감지센서(17c)에 의해 감지되는 검출신호에 따라 전자제어장치(18)로 부터 구동모터(11)에 인가되는 고속전압에 의해 구동모터(11)를 고속으로 회전시켜 헤드레스트(10)를 전방으로 고속회동시킬 수 있게 된다.On the other hand, from the electronic control device 18 in accordance with the detection signal detected by the collision detection sensor (17a, 17b) or the distance detection sensor (17c) in the rear of the vehicle to detect the collision in the front or rear of the vehicle while driving The high speed voltage applied to the driving motor 11 allows the driving motor 11 to rotate at a high speed so that the headrest 10 can be rotated at a high speed forward.

따라서, 충돌시 운전자의 목 및 머리부가 후방으로 과도하게 젖혀져 다치는 것을 방지할 수 있게 된다.Therefore, the neck and head of the driver can be prevented from being excessively folded backward and injured in the event of a collision.

이때, 전술한 구동모터(11)의 회전력이 구동기어(11a) 및 감속기어(11b,16a,16b)에 의해 감속된 후 섹터기어(14)에 관통삽입된 스테이부재(15)에 전달되어 헤드레스트(10)를 스테이의 수평바(A)를 중심축으로하여 회동시키는 것과, 헤드레스트(10)를 설정된 각도범위내에서 전후방향으로 회동시키는 기술내용은, 전술한 바와 같이 운전자가 미도시된 스위치를 조작하여 헤드레스트(10)를 저속으로 회동시킬때와 동일하게 되므로 생략한 것이다.At this time, the above-mentioned rotational force of the drive motor 11 is decelerated by the drive gear 11a and the reduction gears 11b, 16a, and 16b, and then transmitted to the stay member 15 penetrated through the sector gear 14 to the head. As described above, the rest of the rest 10 is rotated around the horizontal bar A of the stay as the center axis, and the head rest 10 is rotated in the front-rear direction within the set angle range. Since the operation is the same as when the headrest 10 rotates at a low speed by operating a switch, it is omitted.

그리고, 도 6에 도시된 바와 같이, 전술한 구동모터(11)에 축고정된 워엄(11a)과 이와 치합하는 감속기어(11b)의 감속비에 의해 구동모터(11)정지시 외력에 의해 헤드레스트(10)가 회동하는 것을 방지함에 따라, 주행중 충돌 발생시 탑승자의 목 및 머리부가 과도하게 젖혀져 다치는 것을 예방할 수 있는 것이다.As shown in FIG. 6, the headrest is restrained by the external force when the driving motor 11 is stopped by the reduction ratio of the worm 11a fixed to the driving motor 11 and the reduction gear 11b engaged therewith. By preventing the turning of (10), the neck and head of the occupant can be prevented from being excessively injured and injured in the event of a collision during driving.

한편, 전술한 헤드레스트(10)뒷면에 형성된 모니터 수납홈(20)에 전후방향으로 회동가능하게 힌지고정된 모니터(21)를 미도시된 힌지핀을 중심축으로하여 전방또는 후방으로 회동시킴에 따라, 앞좌석의 탑승자가 헤드레스트(10)를 회동시키는 경우에도 뒷좌석의 탑승자는 넓은 시야각도를 확보할 수 있게 되므로 모니터(21)를 편안한 자세에서 용이하게 시청(視聽)할 수 있게 된다.On the other hand, the monitor 21, which is hinged to the monitor receiving groove 20 formed on the back of the headrest 10 described above to be rotated in the front-rear direction, rotates forward or rearward with the hinge pin not shown as a central axis. Accordingly, even when the front seat occupant rotates the headrest 10, the rear seat occupant can secure a wide viewing angle, so that the monitor 21 can be easily viewed in a comfortable posture.

한편, 도 5에 도시된 바와 같이, 전술한 구동모터(11)는 스테이부재(15,15a)에 접점시켜 전원을 공급받아 구동할 수 있게 된다. 즉 전술한 스테이부재(15,15a)가 중간에 삽입되는 절연체인 이음구(25)에 의해 연결되고, 등받이(26)상단에 매설된 절연체인 스테이가이드(27,28)의 통공(27a,28a)에 스테이부재(15,15a)가 삽입되어 통전될 수 있도록 도전체인 접점판(29,30)이 통공(27a,28a)에 결합된 것이다.On the other hand, as shown in Figure 5, the above-described drive motor 11 is in contact with the stay member (15, 15a) can be driven by receiving power. That is, the above-described stay members 15 and 15a are connected by the joint 25 which is an insulator inserted in the middle, and the through holes 27a and 28a of the stay guides 27 and 28 which are the insulators embedded in the upper back 26. The contact plates 29 and 30, which are conductors, are coupled to the through holes 27a and 28a so that the stay members 15 and 15a can be inserted into and energized.

따라서, 전술한 등받이(26)상단에 매설된 스테이가이드(27,28)의 통공(27a,28a)에 스테이부재(15,15a)를 삽입시킴에 따라 등받이(26)외부로 부터 공급되는 전원은 스테이부재(15,15a)에 전달되며, 일측 스테이부재(15)에 접속되는 케이블(31)과 타측 스테이부재(15a)에 접속되는 케이블(32)을 구동모터(11)에 접속시킴에 따라, 구동모터(11)구동용 케이블이 통과하는 관통공을 스테이부재(15,15a)에 형성하는 작업이 불필요하여 배선작업이 용이하게 된다.Accordingly, the power supplied from the outside of the backrest 26 is inserted by inserting the stay members 15 and 15a into the through holes 27a and 28a of the stay guides 27 and 28 embedded in the upper part of the backrest 26 described above. As the cable 31 connected to the stay member 15 and 15a and connected to the one stay member 15 and the cable 32 connected to the other stay member 15a is connected to the drive motor 11, It is not necessary to form the through-holes through which the drive motor 11 drive cable passes in the stay members 15 and 15a, which facilitates wiring work.

이상에서와 같이, 본 발명의 헤드레스트 틸팅장치는 아래와 같은 이점을 갖는다.As described above, the headrest tilting device of the present invention has the following advantages.

운전자에 의한 스위치의 조작으로 헤드레스트를 회동시켜 운전자에게 편의성을 제공하며, 주행도중 충돌발생시 모터를 고속회전시킴에 따라 헤드레스트를 고속으로 회동시켜 탑승자의 목 및 머리부위의 부상을 방지할 수 있게 된다.By operating the switch by the driver, the headrest can be rotated to provide convenience to the driver, and the headrest can be rotated at high speed as the motor rotates at high speed in the event of a collision during driving, thereby preventing the injuries of the occupant's neck and head. do.

또한, 모터의 회전력을 감속하여 헤드레스트를 회동시키는 감속장치가 모터의 정지시에 제동기능을 발휘하게되어 외력에 의해 헤드레스트가 회동되는 것을 방지하여 탑승자의 머리 및 목부위를 보호할 수 있다.In addition, the deceleration device for rotating the headrest by decelerating the rotational force of the motor exerts a braking function when the motor is stopped, thereby preventing the headrest from rotating by external force, thereby protecting the head and neck of the occupant.

또한, 헤드레스트 이면에 모니터가 전후방향으로 회동가능하게 힌지고정되어 앞좌석의 헤드레스트가 회동되는 경우에도 뒷좌석의 탑승자가 편한 자세에서 용이하게 모니터링할 수 있고, 차내의 좁은 공간을 효율적으로 활용할 수 있다.In addition, the monitor is hinged on the back of the headrest in a forward and backward direction so that even when the headrest of the front seat is rotated, the rear seat occupant can easily monitor in a comfortable posture, and can effectively utilize the narrow space inside the car. have.

Claims (8)

하측이 등받이 상단에 매설되며 상측이 헤드레스트에 매설되어 헤드레스트를 등받이에 대해 승강시키는 스테이를 구비하는 헤드레스트에 있어서:In a headrest having a stay, the lower side of which is buried in the upper part of the backrest and the upper side of which is buried in the headrest to lift the headrest relative to the backrest: 상기 스테이의 수평바(A)에 결합되어 상기 헤드레스트(10)의 공간부에 수용되는 하우징(M)에 내장되는 구동모터(11);A driving motor 11 coupled to the horizontal bar A of the stay and embedded in a housing M accommodated in the space of the headrest 10; 상기 구동모터(11)에 축고정된 구동기어(11a)와 상기 수평바(A)에 고정된 섹터기어(14)사이에 하나 이상의 감속기어가 치합되어 상기 하우징(M)을 상기 수평바(A)를 중심축으로하여 전후방으로 회동시키는 회동장치(16); 및One or more reduction gears are engaged between the drive gear 11a fixed to the drive motor 11 and the sector gear 14 fixed to the horizontal bar A to connect the housing M to the horizontal bar A. Rotating device (16) for rotating forward and backward with a central axis; And 사용자의 수동 조작신호 입력시에는 저속으로, 차량의 충돌감지센서(17a,17b) 및 거리감지센서(17c)중 어느 하나로부터의 검출신호에 의한 긴급조작신호 입력시에는 고속으로 구동모터(11)를 회전시키도록 구동전원을 인가하는 전자제어장치(18)를 구비하는 것을 특징으로 하는 헤드레스트의 틸팅장치.The drive motor 11 at a low speed when a user inputs a manual operation signal, and at a high speed when an emergency operation signal is input by a detection signal from any one of the collision detection sensors 17a and 17b and the distance detection sensor 17c of the vehicle. Tilting apparatus of the headrest, characterized in that it comprises an electronic control device for applying a driving power to rotate the. 제1항에 있어서, 상기 회동장치(16)의 내부하우징(H)내측면에 상기 섹터기어(14)측면과 마주보게 설치되어 상기 하우징(M)의 회동시 상기 섹터기어(14)의 양측면중 어느 일면과 접촉되면 상기 구동모터(11)의 구동전원을 차단하는 리미트스위치(19a,19b)를 구비하는 것을 특징으로 하는 헤드레스트의 틸팅장치.According to claim 1, wherein the inner side of the internal housing (H) of the rotating device 16 is provided to face the side of the sector gear 14, the side of the two sides of the sector gear 14 during the rotation of the housing (M) And a limit switch (19a, 19b) to cut off the driving power of the drive motor (11) when in contact with any one surface. 제1항에 있어서, 상기 헤드레스트(10)뒷면에 형성된 모니터 수납홈(20)에 모니터(21)가 전후방으로 회동가능하게 힌지고정된 것을 특징으로 하는 헤드레스트의 틸팅장치.The tilting apparatus of claim 1, wherein the monitor (21) is hinged and fixed to the monitor receiving groove (20) formed on the rear surface of the headrest (10). 제1항에 있어서, 절연체의 이음구(25)에 의해 결합되나 전기적으로 절연되며, 상기 구동모터(11)에 케이블(31,32)을 통해 전기적으로 연결되는 도전체인 스테이부재(15,15a); 및According to claim 1, Stay members (15, 15a) is a conductor coupled to the electrical insulator (25) of the insulator, but electrically insulated, and electrically connected to the drive motor (11) via cables (31,32); And 상기 스테이부재(15,15a)를 삽입시 통전될 수 있도록 상기 등받이(26)상단에 매설된 스테이가이드(27,28)의 통공(27a,28a)에 결합되고 전원선에 연결된 접점판(29,30)을 구비하는 것을 특징으로 하는 헤드레스트의 틸팅장치.Contact plates 29 coupled to the through holes 27a and 28a of the stay guides 27 and 28 embedded in the upper backrest 26 so as to be energized when the stay members 15 and 15a are inserted. Tilting device of the headrest, characterized in that it comprises a 30). 제1항에 있어서, 상기 회동장치(16)는;The rotating apparatus (16) according to claim 1, further comprising: a rotating device (16); 상기 구동모터(11)에 축고정된 구동기어(11a)에 치합하는 2단형 제1감속기어(11b);A two-stage first reduction gear (11b) meshing with the drive gear (11a) fixed to the drive motor (11); 상기 제1감속기어(11b)의 소기어(11c)에 치합하는 2단형 제2감속기어(16a); 및A two-stage second reduction gear (16a) meshing with the small gear (11c) of the first reduction gear (11b); And 상기 제2감속기어(16a)의 소기어(16b)에 치합하며 상기 섹터기어(14)에 소기어(16d)가 치합하는 2단형 제3감속기어(16b);A two-stage third reduction gear (16b) that meshes with the small gear (16b) of the second reduction gear (16a) and that the small gear (16d) meshes with the sector gear (14); 상기 수평바(A)에 회동가능하게 결합되어 상기 구동기어(11a), 감속기어(11b,16a,16b) 및 섹터기어(14)를 수용하는 내부하우징(H)을 구비하여 이루어진 것을 특징으로 하는 헤드레스트의 틸팅장치.It is rotatably coupled to the horizontal bar (A) comprises an internal housing (H) for receiving the drive gear (11a), reduction gear (11b, 16a, 16b) and the sector gear (14) Tilting device of the headrest. 제1항에 있어서, 상기 감속기어(16b)의 축(S)에 설치되고 상기 회동장치(16)의 회동에 따라 저항값이 가변되는 로우터리센서(RS)를 구비하는 것을 특징으로 하는 헤드레스트의 틸팅장치.The headrest according to claim 1, further comprising a rotary sensor (RS) installed on the shaft (S) of the reduction gear (16b) and having a resistance value varied according to the rotation of the rotating device (16). Tilting device. 제1항에 있어서, 상기 구동모터(11)에 구동전원을 인가하는 케이블(31,32)은;According to claim 1, Cables (31, 32) for applying a drive power to the drive motor (11); 등받이(26)상단에 매설된 스테이가이드(27,28)에 결합하는 스테이부재(15,15a)중 환봉의 스테이부재(15)에 상측이 용접고정된 속이빈 파이프의 스테이부재(15a)에 삽입되어 헤드레스트(10)에 매설된 구동모터(11)에 연결된 것을 특징으로 하는 헤드레스트의 틸팅장치.Inserted into the stay member 15a of the hollow pipe of which the upper side is welded and fixed to the stay member 15 of the round bar among the stay members 15 and 15a coupled to the stay guides 27 and 28 embedded on the upper back 26. The headrest tilting device, characterized in that connected to the drive motor 11 embedded in the headrest (10). 제1항에 있어서, 상기 구동기어(11a)는 평기어 또는 워엄인 것을 특징으로 하는 헤드레스트의 틸팅장치.The tilting device of a headrest according to claim 1, wherein the drive gear (11a) is a spur gear or a worm.
KR10-2002-0000912A 2002-01-08 2002-01-08 tilting apparatus of headrest KR100455530B1 (en)

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KR101054759B1 (en) * 2004-09-30 2011-08-05 현대자동차주식회사 Active Headrest Device and its Control Method for Forecasting Back Collision
US9096154B2 (en) 2012-12-12 2015-08-04 Hyundai Motor Company Reclining apparatus of headrest for rear seat in vehicle
WO2016080763A1 (en) * 2014-11-20 2016-05-26 허치영 Headrest for vehicle
CN111516577A (en) * 2019-02-05 2020-08-11 温泽机械和制模(2009)有限责任公司 Power actuated reclining headrest assembly and method of automatic deployment thereof
WO2020234000A1 (en) * 2019-05-20 2020-11-26 Hettich Franke Gmbh & Co. Kg Electromotor adjusting unit for adjusting the inclination of a support part of an item of seating furniture
CN112277750A (en) * 2020-11-23 2021-01-29 浙江吉利控股集团有限公司 Automobile seat
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RU2810358C2 (en) * 2019-05-20 2023-12-27 Хеттих Франке ГмбХ унд Ко. КГ Electric motor adjustment unit for adjusting tilt of supporting part of seating furniture, supporting part of seating furniture and seating furniture

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KR101054759B1 (en) * 2004-09-30 2011-08-05 현대자동차주식회사 Active Headrest Device and its Control Method for Forecasting Back Collision
KR100879097B1 (en) * 2007-07-09 2009-01-15 현대자동차주식회사 Safety apparatus for safety a rear seat monitor for automobill
US9096154B2 (en) 2012-12-12 2015-08-04 Hyundai Motor Company Reclining apparatus of headrest for rear seat in vehicle
WO2016080763A1 (en) * 2014-11-20 2016-05-26 허치영 Headrest for vehicle
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CN106998916A (en) * 2014-11-20 2017-08-01 许治宁 Vehicle head rest
CN111516577A (en) * 2019-02-05 2020-08-11 温泽机械和制模(2009)有限责任公司 Power actuated reclining headrest assembly and method of automatic deployment thereof
WO2020234000A1 (en) * 2019-05-20 2020-11-26 Hettich Franke Gmbh & Co. Kg Electromotor adjusting unit for adjusting the inclination of a support part of an item of seating furniture
CN113873921A (en) * 2019-05-20 2021-12-31 海蒂诗弗兰克有限及两合公司 Electric adjustment unit for adjusting the inclination of a support part of a piece of seating furniture, support part and piece of seating furniture
US11793312B2 (en) 2019-05-20 2023-10-24 Hettich Franke Gmbh & Co. Kg Electromotor adjusting unit for adjusting the inclination of a support part of an item of seating furniture
RU2810358C2 (en) * 2019-05-20 2023-12-27 Хеттих Франке ГмбХ унд Ко. КГ Electric motor adjustment unit for adjusting tilt of supporting part of seating furniture, supporting part of seating furniture and seating furniture
CN113873921B (en) * 2019-05-20 2024-06-11 海蒂诗弗兰克有限及两合公司 Electric adjustment unit for adjusting the inclination of a support part of a piece of seating furniture, support part and seating furniture
CN112277750A (en) * 2020-11-23 2021-01-29 浙江吉利控股集团有限公司 Automobile seat
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