WO2016144049A1 - Vehicle seat pumping device - Google Patents

Vehicle seat pumping device Download PDF

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Publication number
WO2016144049A1
WO2016144049A1 PCT/KR2016/002171 KR2016002171W WO2016144049A1 WO 2016144049 A1 WO2016144049 A1 WO 2016144049A1 KR 2016002171 W KR2016002171 W KR 2016002171W WO 2016144049 A1 WO2016144049 A1 WO 2016144049A1
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WO
WIPO (PCT)
Prior art keywords
brake
pair
cam
control plate
housing
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Application number
PCT/KR2016/002171
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French (fr)
Korean (ko)
Inventor
최형일
채수민
Original Assignee
주식회사 오스템
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Application filed by 주식회사 오스템 filed Critical 주식회사 오스템
Publication of WO2016144049A1 publication Critical patent/WO2016144049A1/en

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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
    • B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/16—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
    • A47C3/20—Chairs or stools with vertically-adjustable seats

Definitions

  • the present invention relates to a pumping device which is an accessory used for adjusting a vehicle seat, for example, adjusting the height of the seat.
  • the pumping device is disclosed in Korean Patent Registration No. 10-1421927, "Pumping Device for Vehicle Seat”, and Korean Patent Registration No. 10-1361520, “Pumping Device for Adjusting Seat Height and Vehicle Seat Height Adjustment Device Having the Same", and the like. It is applied to the input side of the height adjustment mechanism, or a recliner for rotating the seatback as disclosed in US Patent No. 6,616,241 "ROTATION LIMITING DEVICE AND SEAT RECLINER DEVICE USING THE SAME.”
  • the conventional pumping device as described above has a problem in that manufacturing is complicated and quality control is not easy due to the large number of parts and high precision.
  • an object of the present invention is to provide a pumping device for a vehicle seat, which significantly reduces the number of parts compared to the prior art, facilitates precision and quality control, and simplifies manufacturing.
  • the present invention provides a pumping device for a vehicle seat, comprising: a cylindrical housing through which a shaft is rotatably supported; A brake cam accommodated in the housing and rotating integrally with the shaft; The brake cams are symmetrically disposed on the outer side of the brake cam and are inserted in close contact with the inner circumferential surface of the housing, and are selectively pressed and opened according to the rotational direction of the brake cam.
  • a protruding arm received in the housing and extending in the axial direction adjacent to the pair of brake springs in an axial direction, and selectively pressing and pulling the pair of brake springs through the protruding arms during rotation;
  • a control plate rotating in one or the other direction and rotating the brake cam in the same direction;
  • a bidirectional clutch means provided on one side of the control plate in an axial direction to rotate integrally with the control plate when the rotation is input, and return to the original position by releasing the engagement with the control plate when the rotation input is extinguished. It provides a pumping device for a vehicle seat.
  • the brake spring is a ring having an outer circumferential surface in close contact with the inner circumferential surface of the housing and having a cut surface at one side thereof, and a rotation of the protruding arm of the control plate and the first working part contacted when the brake cam is rotated inside.
  • the second contact portion which is in contact with each other is formed, and when the first action portion is pressed by contact by the rotation of the brake cam, it is caused by a one-way slip on the cutting surface, and the second action is caused by the rotation of the protrusion arm.
  • the acting portion may be retracted due to the opposite slip at the cut surface when the contact is pressurized.
  • the brake spring, the elastic arm portion is formed adjacent to the cutting surface extending into the housing, the elastic arm portion is in contact with the brake cam is maintained in the elastically deformed state by the surface contact state at the cutting surface May be kept at all times.
  • the brake spring may be configured such that a third actuating portion for pressing and rotating the brake cam in the same direction as the protruding arm portion is formed adjacent to the second actuating portion during rotation.
  • the pair of brake springs may be provided to be stacked on each other in the axial direction and may be provided at least two.
  • control plate is formed with a rim portion protruding in the axial direction opposite to the protruding arm
  • the bidirectional clutch means is rotatably received in the rim portion, both ends in the circumferential direction between the rim portion gradually
  • An operating cam forming a plurality of receiving spaces to be narrowed;
  • a pair of rollers accommodated at both ends of each accommodation space;
  • a spring accommodated between the pair of rollers to pressurize the pair of rollers in a circumferential direction, wherein the pair of rollers are provided with a pair of outer small diameter rollers and inner large diameter rollers, respectively.
  • the pumping device for a vehicle seat further includes a cover plate coupled with the housing to accommodate the brake cam, the pair of brake springs, the control plate and the bidirectional clutch means.
  • the cover plate may include a plurality of fixing protrusions extending in the axial direction so as to support the pair of rollers in the circumferential direction on the opposite side of the spring.
  • the pumping device for a vehicle seat is coupled to the axial one side of the operating cam rotates integrally, the connecting plate is formed with a plurality of operating projections penetrating the cover plate in the axial direction;
  • the outer side of the cover plate may further include a lever plate coupled to the plurality of operating projections to rotate integrally with the connecting plate.
  • the pumping device for a vehicle seat can take a relatively simple configuration, such as a brake spring to exert the brake force on the brake cam, significantly reducing the number of parts compared to the prior art and precision and It is possible to provide a pumping device for a vehicle seat that is easy to control quality and simplified manufacturing.
  • FIG. 1 is a perspective view of a pumping device for a vehicle seat according to an embodiment of the present invention
  • FIG. 2 is a front view of the pumping device for a vehicle seat of FIG. 1;
  • FIG. 3 is an exploded perspective view of the pumping device for a vehicle seat of FIG. 1;
  • FIG. 4 is a cross-sectional view taken along line AA of FIG. 2;
  • FIGS. 5A and 5B are plan views at the cutting planes along the line BB of FIGS. 2 and 4, showing a standby state (FIG. 5A) and an operating state (FIG. 5B),
  • FIGS. 6A and 6B show a standby state (FIG. 6A) and an in-operation state (FIG. 6B) as a plan view at the cutting plane along the line CC of FIGS. 2 and 4.
  • the cylindrical housing 10 of the lower portion and the upper cover plate 20 covering them are coupled therebetween. It is a structure for receiving and supporting a plurality of components in the shaft 30 from the lower portion of the housing 10 is rotatably supported.
  • the lever plate 40 is rotatably supported on the outside of the cover plate 20.
  • a brake cam 50 Inside the housing 10, as shown in FIGS. 3 and 4, a brake cam 50, a pair of brake springs 60, a control plate 70, a bidirectional clutch means 80, and a connecting plate 90. ) Is accepted.
  • the brake cam 50 passes through the shaft 30 and rotates integrally therewith.
  • the shaft 30 is rotated only when the brake cam 50 is rotated as the output side of the pumping device 1, and the pinion 100 for transmitting the output to the outside is provided at the outside of the housing 10. Rotate integrally with
  • the pair of brake springs 60 is a means for transmitting the rotational force to the brake cam 50 as described above when the rotation is input through the control plate 70, the outer circumferential surface 61 on the inner circumferential surface 11 of the housing 10; It is in close contact.
  • one brake spring 60-1 blocks the counterclockwise rotation of the brake cam 50, and the other brake spring 60-2 rotates clockwise. To block. The detailed mechanism will be described later.
  • the pair of brake springs 60 are provided to be stacked on each other in the axial direction, and may be provided in two or more, respectively.
  • the control plate 70 is laminated on the upper side of the pair of brake springs 60 in the housing 10, but the protruding arms 71 extending downwardly from the plate surface, ie, in the axial direction, are provided on the brake springs 60. Acts as a rotational input to the
  • the control plate 70 has a rim 72 protruding from the protruding arm 71 in an axial direction opposite to the protruding arm 71, and inside the rim 72, the bidirectional clutch means 80, that is, the operating cam 81, The roller 82 and the spring 83 are accommodated.
  • the bidirectional clutch means 80 transmits the rotational force to the control plate 70 at the time of rotation input through the lever plate 40, and returns the lever plate 40 to its original position when there is no rotation input. .
  • the detailed mechanism will be described later.
  • a lever (not shown) for operating the pumping device 1 is fastened to the lever plate 40.
  • the connecting plate 90 is a medium for connecting the inner operating cam 81 and the outer lever plate 40 with the cover plate 20 interposed therebetween, with a central serration 91 at the operating cam 81 side.
  • a plurality of operating projections 92 are coupled to the serration holes 81a of the circumferential direction and extend in the axial direction so as to penetrate through the extension grooves 21 of the cover plate 20 and the lever plate 40. The fastening is performed by being inserted into the insertion hole 41 at the side.
  • the operating cam rotatably coupled to the bearing portion 73 on the control plate 70 side via the connecting plate 90
  • the shape of the cam curved surface of the operating cam 81 has a wide radial width in the middle portion and gradually narrows the width at both ends.
  • the space S is formed.
  • a pair of rollers 82 are accommodated at both ends, and a spring 83 is accommodated between these rollers 82 to press each roller 82 in the circumferential direction.
  • the roller 82 pressed by the spring 83 is supported in the circumferential direction on the opposite side of the spring 83 by a fixing protrusion 22 extending in the axial direction from the cover plate 20 side.
  • the cam end portion 81b which makes the receiving space S the narrowest makes the roller 82 circumferentially, specifically, relatively wide. It rotates while pushing to the middle part of this wide accommodation space (S).
  • the roller 82 which has been pushed to some extent is caught in the cam portion 81b on the inner side and the rim portion 72 on the outer side, and the operating cam 81, the roller 82, and the rim portion 72 thereafter. That is, the control plate 70 rotates integrally.
  • the rotation of the control plate 70 is stopped by the opposite roller 82 touches the fixing protrusion 22 and reaches the compression limit of the spring 83, and then releases the rotation force applied to the operating cam 81 to release the spring (
  • the roller 82 which has been moved by the restoring force of 83, returns to the original position of FIG. 5A, and rotates the cam end portion 81b in the circumferential direction to return it to its original position.
  • the roller 82 has an end portion of the narrow receiving space S by forming a group in which the small-diameter roller 82-1 is disposed outside and the large-diameter roller 82-2 is disposed inside. It can have a suitable size and at the same time the portion of the inner and outer contact is increased to achieve an improvement in the transmission force to the rim (72).
  • the brake spring 60 whose outer peripheral surface is in close contact with the inner peripheral surface of the housing 10 is a cutting surface in a direction inclined at a predetermined angle with respect to the tangential direction on one side ( 62, it acts to open or retract along the relative sliding, ie, slip, direction of the two contact portions forming this cut surface 62.
  • the brake cam 50 is disposed inside the brake spring 60 as described above, and a part of the cam surface of the brake cam 50 protrudes inwardly adjacent to the cutting surface 62. 63) in contact with or in close proximity.
  • the brake spring 60 forms an elastic arm portion 66 extending inwardly of the housing 10 adjacent to the cutting surface 62 and is kept in contact with the brake cam 50 to be elastically deformed. It is preferable that the surface contact state at the cutting surface 62 is always maintained.
  • the brake cam 50 is rotated under pressure while the third acting portion 65 angularly adjacent to the second acting portion 64 rotates in the brake spring 60.
  • one end portion 52 of the brake cam 50 pushes the elastic arm portion 66 of the brake spring (60-2) counterclockwise to the corresponding cut surface (62). ') causes a slip in the brake spring (60-2) is retracted to be able to rotate as well.

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Abstract

The present invention relates to a vehicle seat pumping device comprising: a housing supported by a shaft; a brake cam accommodated in the housing so as to rotate integrally with the shaft; a pair of brake springs arranged to be symmetrical to each other at the outer side of the brake cam, inserted so as to make close contact with the inner peripheral surface of the housing, and selectively pressed according to the rotational direction of the brake cam and spaced apart, thereby preventing the rotation of the brake cam in one direction and the other direction by means of the friction force generated between the inner peripheral surface of the housing and the brake spring; a control plate having protruding arms neighboring in the shaft direction on the pair of brake springs, and selectively pressing the pair of brake springs and retracting the same when rotating, thereby rotating the brake springs in one direction or the other direction and rotating the brake cam in the same direction; and a two-way clutch means provided at one side of the control plate in the shaft direction so as to engage with the control plate and rotate integrally with the same when rotation is inputted, and releasing the engagement with the control plate and returning the control plate to the original position thereof when the rotation input is released. Therefore, provided is the vehicle seat pumping device significantly reducing the number of parts, facilitating precision and quality management, and simplifying manufacturing, compared to the conventional art.

Description

차량 시트용 펌핑디바이스Pumping device for vehicle seat
본 발명은 차량 시트의 조절, 예를 들어 시트의 높낮이를 조절하기 위해 사용되는 부속품인 펌핑디바이스에 관한 것이다.The present invention relates to a pumping device which is an accessory used for adjusting a vehicle seat, for example, adjusting the height of the seat.
펌핑디바이스는 한국특허등록 제10-1421927호 "차량 시트의 펌핑 디바이스", 한국특허등록 제10-1361520호 "시트 높이 조절용 펌핑 디바이스 및 이를 구비한 차량용 시트 높이 조절 장치" 등에 개시된 바와 같이 차량용 시트의 높이조절기구의 입력측에 적용되거나, 미국특허등록 제6,616,241호 "ROTATION LIMITING DEVICE AND SEAT RECLINER DEVICE USING THE SAME"에 개시된 바와 같이 시트백(seatback)의 회동을 위한 리클라이너(recliner) 등에 적용된다.The pumping device is disclosed in Korean Patent Registration No. 10-1421927, "Pumping Device for Vehicle Seat", and Korean Patent Registration No. 10-1361520, "Pumping Device for Adjusting Seat Height and Vehicle Seat Height Adjustment Device Having the Same", and the like. It is applied to the input side of the height adjustment mechanism, or a recliner for rotating the seatback as disclosed in US Patent No. 6,616,241 "ROTATION LIMITING DEVICE AND SEAT RECLINER DEVICE USING THE SAME."
그러나, 이상과 같은 종래의 펌핑디바이스는 부품수가 많고 높은 정밀도가 요구되는 관계로 제조가 복잡하고 품질관리가 용이하지 않다는 문제가 있었다.However, the conventional pumping device as described above has a problem in that manufacturing is complicated and quality control is not easy due to the large number of parts and high precision.
따라서, 본 발명의 목적은 종래기술에 비해 부품수를 획기적으로 줄이고 정밀도 및 품질 관리가 용이하며 제조가 간소화된 차량 시트용 펌핑디바이스를 제공하는 데 있다.Accordingly, an object of the present invention is to provide a pumping device for a vehicle seat, which significantly reduces the number of parts compared to the prior art, facilitates precision and quality control, and simplifies manufacturing.
상기 목적을 달성하기 위해 본 발명은 차량 시트용 펌핑디바이스(pumping device)에 있어서, 축이 관통되어 회전가능하게 지지되는 원통의 하우징과; 상기 하우징에 수용되어 상기 축과 일체로 회전하는 브레이크캠과; 상기 브레이크캠의 외측에 서로 대칭으로 배치되어 상기 하우징의 내주면에 밀착되게 삽입되며, 상기 브레이크캠의 회전방향에 따라 선택적으로 가압되어 벌어짐으로써 상기 하우징 내주면과의 사이에 발생하는 마찰력을 통해 상기 브레이크캠의 일측 및 타측 방향으로의 회전을 차단하는 한 쌍의 브레이크스프링과; 상기 한 쌍의 브레이크스프링 상에 축방향으로 이웃하여 상기 하우징에 수용되고 축방향으로 연장 형성되는 돌출아암을 가지며, 회전 시 상기 돌출아암을 통해 상기 한 쌍의 브레이크스프링을 선택적으로 가압하여 오므림으로써 일측 또는 타측 방향으로 회전시키고 이와 함께 상기 브레이크캠을 같은 방향으로 회전시키는 컨트롤플레이트; 및 상기 컨트롤플레이트의 축방향 일측에 구비되어 회전 입력 시 상기 컨트롤플레이트와 맞물려 일체로 회전하고, 회전 입력 소멸 시 상기 컨트롤플레이트와의 맞물림이 해제되어 원위치로 복귀하는 양방향 클러치 수단을 포함하는 것을 특징으로 하는 차량 시트용 펌핑디바이스를 제공한다.In order to achieve the above object, the present invention provides a pumping device for a vehicle seat, comprising: a cylindrical housing through which a shaft is rotatably supported; A brake cam accommodated in the housing and rotating integrally with the shaft; The brake cams are symmetrically disposed on the outer side of the brake cam and are inserted in close contact with the inner circumferential surface of the housing, and are selectively pressed and opened according to the rotational direction of the brake cam. A pair of brake springs for blocking rotation in one and the other directions of the; A protruding arm received in the housing and extending in the axial direction adjacent to the pair of brake springs in an axial direction, and selectively pressing and pulling the pair of brake springs through the protruding arms during rotation; A control plate rotating in one or the other direction and rotating the brake cam in the same direction; And a bidirectional clutch means provided on one side of the control plate in an axial direction to rotate integrally with the control plate when the rotation is input, and return to the original position by releasing the engagement with the control plate when the rotation input is extinguished. It provides a pumping device for a vehicle seat.
여기서, 상기 브레이크스프링은, 외주면이 상기 하우징의 내주면에 밀착되고 일측에 절단면을 갖는 링(ring)으로서, 내측에 상기 브레이크캠의 회전 시 접촉되는 제1 작용부와 상기 컨트롤플레이트의 돌출아암의 회전 시 접촉되는 제2 작용부가 형성됨으로써, 상기 브레이크캠의 회전에 의해 상기 제1 작용부가 접촉 가압되는 경우 상기 절단면에서의 일방향 슬립(slip)으로 인해 벌어지고, 상기 돌출아암의 회전에 의해 상기 제2 작용부가 접촉 가압되는 경우 상기 절단면에서의 반대방향 슬립으로 인해 오므려지도록 할 수도 있다.Here, the brake spring is a ring having an outer circumferential surface in close contact with the inner circumferential surface of the housing and having a cut surface at one side thereof, and a rotation of the protruding arm of the control plate and the first working part contacted when the brake cam is rotated inside. The second contact portion which is in contact with each other is formed, and when the first action portion is pressed by contact by the rotation of the brake cam, it is caused by a one-way slip on the cutting surface, and the second action is caused by the rotation of the protrusion arm. The acting portion may be retracted due to the opposite slip at the cut surface when the contact is pressurized.
이때, 상기 브레이크스프링은, 상기 절단면과 인접하여 상기 하우징의 내측으로 연장되는 탄성아암부가 더 형성되고, 상기 탄성아암부는 상기 브레이크캠에 접촉하여 탄성변형된 상태로 유지됨으로써 상기 절단면에서의 면접촉 상태가 항상 유지되도록 할 수도 있다.In this case, the brake spring, the elastic arm portion is formed adjacent to the cutting surface extending into the housing, the elastic arm portion is in contact with the brake cam is maintained in the elastically deformed state by the surface contact state at the cutting surface May be kept at all times.
그리고, 상기 브레이크스프링은, 회전 시 상기 브레이크캠을 상기 돌출아암부와 같은 방향으로 가압 회전시키는 제3 작용부가 상기 제2 작용부에 이웃하여 형성되도록 할 수도 있다.The brake spring may be configured such that a third actuating portion for pressing and rotating the brake cam in the same direction as the protruding arm portion is formed adjacent to the second actuating portion during rotation.
또한, 상기 한 쌍의 브레이크스프링은 축방향으로 서로 적층되게 구비되며 각각 2 이상씩 구비되도록 할 수도 있다.In addition, the pair of brake springs may be provided to be stacked on each other in the axial direction and may be provided at least two.
한편, 상기 컨트롤플레이트는 상기 돌출아암의 반대편 축방향으로 테두리림부가 돌출 형성되고, 상기 양방향 클러치 수단은, 상기 테두리림부에 회전 가능하게 수용되어 상기 테두리림부와의 사이에 원주방향으로 양측 단부가 점차 좁아지는 복수의 수용공간을 형성하는 오퍼레이팅캠과; 각 수용공간의 양측 단부에 수용되는 한 쌍의 롤러; 및 상기 한 쌍의 롤러 사이에 수용되어 상기 한 쌍의 롤러를 원주방향으로 가압하는 스프링을 포함하되, 상기 한 쌍의 롤러는 각각 외측의 소구경 롤러와 내측의 대구경 롤러가 한 조를 이루어 구비되도록 할 수도 있다.On the other hand, the control plate is formed with a rim portion protruding in the axial direction opposite to the protruding arm, the bidirectional clutch means is rotatably received in the rim portion, both ends in the circumferential direction between the rim portion gradually An operating cam forming a plurality of receiving spaces to be narrowed; A pair of rollers accommodated at both ends of each accommodation space; And a spring accommodated between the pair of rollers to pressurize the pair of rollers in a circumferential direction, wherein the pair of rollers are provided with a pair of outer small diameter rollers and inner large diameter rollers, respectively. You may.
이 경우, 본 발명에 따른 차량 시트용 펌핑디바이스는 상기 하우징과 결합하여 상기 하우징과의 사이에 상기 브레이크캠, 상기 한 쌍의 브레이크스프링, 상기 컨트롤플레이트 및 상기 양방향 클러치 수단을 수용하는 커버플레이트를 더 포함하고, 상기 커버플레이트는, 상기 축방향으로 연장 형성되는 복수의 고정돌기가 상기 스프링의 반대편에서 상기 한 쌍의 롤러를 원주방향으로 지지하도록 할 수도 있다.In this case, the pumping device for a vehicle seat according to the present invention further includes a cover plate coupled with the housing to accommodate the brake cam, the pair of brake springs, the control plate and the bidirectional clutch means. The cover plate may include a plurality of fixing protrusions extending in the axial direction so as to support the pair of rollers in the circumferential direction on the opposite side of the spring.
나아가, 본 발명에 따른 차량 시트용 펌핑디바이스는 상기 오퍼레이팅캠의 축방향 일측면에 결합하여 일체로 회전하며, 상기 커버플레이트를 축방향으로 관통하는 복수의 오퍼레이팅돌기가 형성되는 커넥팅플레이트와; 상기 커버플레이트의 외측면에서 상기 복수의 오퍼레이팅돌기와 결합하여 상기 커넥팅플레이트와 일체로 회전하는 레버플레이트를 더 포함할 수도 있다.Furthermore, the pumping device for a vehicle seat according to the present invention is coupled to the axial one side of the operating cam rotates integrally, the connecting plate is formed with a plurality of operating projections penetrating the cover plate in the axial direction; The outer side of the cover plate may further include a lever plate coupled to the plurality of operating projections to rotate integrally with the connecting plate.
이상 설명된 바와 같이, 본 발명에 따른 차량 시트용 펌핑디바이스에 의하면 브레이크캠에 대한 브레이크력을 발휘하기 위해 브레이크스프링과 같은 비교적 단순한 구성을 취할 수 있으므로 종래기술에 비해 부품수를 획기적으로 줄이고 정밀도 및 품질 관리가 용이하며 제조가 간소화된 차량 시트용 펌핑디바이스를 제공할 수 있다.As described above, according to the pumping device for a vehicle seat according to the present invention can take a relatively simple configuration, such as a brake spring to exert the brake force on the brake cam, significantly reducing the number of parts compared to the prior art and precision and It is possible to provide a pumping device for a vehicle seat that is easy to control quality and simplified manufacturing.
도 1은 본 발명의 실시예에 따른 차량 시트용 펌핑디바이스의 사시도,1 is a perspective view of a pumping device for a vehicle seat according to an embodiment of the present invention;
도 2는 도 1의 차량 시트용 펌핑디바이스의 정면도,2 is a front view of the pumping device for a vehicle seat of FIG. 1;
도 3은 도 1의 차량 시트용 펌핑디바이스의 분해 사시도,3 is an exploded perspective view of the pumping device for a vehicle seat of FIG. 1;
도 4는 도 2의 AA선에 따른 단면도,4 is a cross-sectional view taken along line AA of FIG. 2;
도 5a 및 도 5b는 도 2 및 도 4의 BB선에 따른 절단면에서의 평면도로서 대기 상태(도 5a) 및 작동중 상태(도 5b)를 도시한 것,5A and 5B are plan views at the cutting planes along the line BB of FIGS. 2 and 4, showing a standby state (FIG. 5A) and an operating state (FIG. 5B),
도 6a 및 도 6b는 도 2 및 도 4의 CC선에 따른 절단면에서의 평면도로서 대기 상태(도 6a) 및 작동중 상태(도 6b)를 도시한 것이다.6A and 6B show a standby state (FIG. 6A) and an in-operation state (FIG. 6B) as a plan view at the cutting plane along the line CC of FIGS. 2 and 4.
본 발명의 실시예에 따른 차량 시트용 펌핑디바이스(1)는, 도 1 및 도 2에 도시된 바와 같이, 하부의 원통 하우징(10)과 이를 덮는 상부의 커버플레이트(20)가 결합하여 그 사이에 다수의 구성요소들을 수용 및 지지하는 구조이며, 하우징(10)의 하부로부터 축(30)이 관통하여 회전 가능하게 지지된다. 커버플레이트(20)의 외측으로는 레버플레이트(40)가 회전 가능하게 지지된다.In the pumping device 1 for a vehicle seat according to an embodiment of the present invention, as shown in Figs. 1 and 2, the cylindrical housing 10 of the lower portion and the upper cover plate 20 covering them are coupled therebetween. It is a structure for receiving and supporting a plurality of components in the shaft 30 from the lower portion of the housing 10 is rotatably supported. The lever plate 40 is rotatably supported on the outside of the cover plate 20.
하우징(10) 내부에는, 도 3 및 도 4에 도시된 바와 같이, 브레이크캠(50), 한 쌍의 브레이크스프링(60), 컨트롤플레이트(70), 양방향 클러치 수단(80) 및 커넥팅플레이트(90)가 수용된다.Inside the housing 10, as shown in FIGS. 3 and 4, a brake cam 50, a pair of brake springs 60, a control plate 70, a bidirectional clutch means 80, and a connecting plate 90. ) Is accepted.
브레이크캠(50)은 축(30)에 관통되어 이와 일체로 회전한다. 축(30)은 펌핑디바이스(1)의 출력측으로서 브레이크캠(50)의 회전 시에만 회전하게 되며, 출력을 외부로 전달하기 위한 피니언(100)이 하우징(10)의 외부에서 상기 축(30)과 일체로 회전한다.The brake cam 50 passes through the shaft 30 and rotates integrally therewith. The shaft 30 is rotated only when the brake cam 50 is rotated as the output side of the pumping device 1, and the pinion 100 for transmitting the output to the outside is provided at the outside of the housing 10. Rotate integrally with
한 쌍의 브레이크스프링(60)은 컨트롤플레이트(70)를 통한 회전 입력 시 상기와 같은 브레이크캠(50)에 회전력을 전달하기 위한 수단으로서 외주면(61)이 하우징(10)의 내주면(11)에 밀착 접촉된다.The pair of brake springs 60 is a means for transmitting the rotational force to the brake cam 50 as described above when the rotation is input through the control plate 70, the outer circumferential surface 61 on the inner circumferential surface 11 of the housing 10; It is in close contact.
반대로, 컨트롤플레이트(70)를 통한 회전 입력이 없는 경우에는 일측 브레이크스프링(60-1)은 브레이크캠(50)의 반시계방향 회전을 차단하며, 타측 브레이크스프링(60-2)은 시계방향 회전을 차단한다. 상세한 메커니즘은 후술하기로 한다.On the contrary, when there is no rotation input through the control plate 70, one brake spring 60-1 blocks the counterclockwise rotation of the brake cam 50, and the other brake spring 60-2 rotates clockwise. To block. The detailed mechanism will be described later.
한 쌍의 브레이크스프링(60)은 축방향으로 서로 적층되게 구비되며, 각각 2 이상씩 구비될 수도 있다.The pair of brake springs 60 are provided to be stacked on each other in the axial direction, and may be provided in two or more, respectively.
컨트롤플레이트(70)는 하우징(10) 내에서 상기한 한 쌍의 브레이크스프링(60) 상측에 적층되되 판면의 하부로, 즉 축방향으로 연장 형성되는 돌출아암(71)이 브레이크스프링(60)에 대한 회전 입력으로서 작용한다.The control plate 70 is laminated on the upper side of the pair of brake springs 60 in the housing 10, but the protruding arms 71 extending downwardly from the plate surface, ie, in the axial direction, are provided on the brake springs 60. Acts as a rotational input to the
컨트롤플레이트(70)는 상기 돌출아암(71)의 반대편 축방향으로 테두리림부(72)가 돌출 형성되고, 이 테두리림부(72) 내측으로는 양방향 클러치 수단(80), 즉 오퍼레이팅캠(81), 롤러(82) 및 스프링(83)이 수용된다.The control plate 70 has a rim 72 protruding from the protruding arm 71 in an axial direction opposite to the protruding arm 71, and inside the rim 72, the bidirectional clutch means 80, that is, the operating cam 81, The roller 82 and the spring 83 are accommodated.
양방향 클러치 수단(80)은 레버플레이트(40)를 통한 회전 입력 시 회전력을 컨트롤플레이트(70)에 전달하고, 회전 입력이 없는 경우에는 상기 레버플레이트(40)를 원위치로 복귀회동시키는 역할을 수행한다. 상세한 메커니즘은 후술하기로 한다. 펌핑디바이스(1)를 조작하기 위한 레버(도면 미도시)는 상기 레버플레이트(40)에 체결된다.The bidirectional clutch means 80 transmits the rotational force to the control plate 70 at the time of rotation input through the lever plate 40, and returns the lever plate 40 to its original position when there is no rotation input. . The detailed mechanism will be described later. A lever (not shown) for operating the pumping device 1 is fastened to the lever plate 40.
커넥팅플레이트(90)는 커버플레이트(20)를 사이에 두고 내측의 오퍼레이팅캠(81)과 외측의 레버플레이트(40)를 연결하는 매개체로서 중앙의 세레이션부(91)가 오퍼레이팅캠(81) 측의 세레이션홀(81a)에 결합하고 외측의 원주방향으로 배치된 복수의 오퍼레이팅돌기(92)가 축방향으로 연장 형성되어 커버플레이트(20)의 연장홈(21)을 통해 관통하여 레버플레이트(40) 측의 삽입홀(41)에 삽입됨으로써 체결이 이루어진다.The connecting plate 90 is a medium for connecting the inner operating cam 81 and the outer lever plate 40 with the cover plate 20 interposed therebetween, with a central serration 91 at the operating cam 81 side. A plurality of operating projections 92 are coupled to the serration holes 81a of the circumferential direction and extend in the axial direction so as to penetrate through the extension grooves 21 of the cover plate 20 and the lever plate 40. The fastening is performed by being inserted into the insertion hole 41 at the side.
양방향 클러치 수단(80)의 작동 메커니즘을 살펴보면, 도 5a에 도시된 바와 같이, 커넥팅플레이트(90)를 매개로 하여 컨트롤플레이트(70) 측의 축수용부(73)에 회전 가능하게 결합하는 오퍼레이팅캠(81)과 컨트롤플레이트(70) 측 테두리림부(72)의 사이에는, 상기 오퍼레이팅캠(81)의 캠곡면의 형상으로 인해 중간부의 반경방향 폭이 넓고 양측 단부의 폭이 점차 좁아지는 모양의 수용공간(S)이 형성된다.Looking at the operation mechanism of the bidirectional clutch means 80, as shown in Figure 5a, the operating cam rotatably coupled to the bearing portion 73 on the control plate 70 side via the connecting plate 90 Between the 81 and the control plate 70 side rim 72, the shape of the cam curved surface of the operating cam 81 has a wide radial width in the middle portion and gradually narrows the width at both ends. The space S is formed.
수용공간(S)으로는 한 쌍의 롤러(82)가 양측 단부에 수용되고, 이들 롤러(82)의 사이에는 스프링(83)이 수용되어 각 롤러(82)를 원주방향으로 가압한다.As the accommodation space S, a pair of rollers 82 are accommodated at both ends, and a spring 83 is accommodated between these rollers 82 to press each roller 82 in the circumferential direction.
스프링(83)에 의해 가압되는 롤러(82)는 커버플레이트(20) 측에서 축방향으로 연장 형성되는 고정돌기(22)에 의해 상기 스프링(83)의 반대편에서 원주방향으로 지지된다.The roller 82 pressed by the spring 83 is supported in the circumferential direction on the opposite side of the spring 83 by a fixing protrusion 22 extending in the axial direction from the cover plate 20 side.
이러한 상태에서 오퍼레이팅캠(81)이 회전하는 경우, 도 5b에 도시된 바와 같이, 수용공간(S)을 가장 좁게 만드는 캠단부(81b)가 롤러(82)를 원주방향으로, 구체적으로는 비교적 폭이 넓은 수용공간(S)의 중간부로 밀면서 회전한다. 어느 정도 밀려난 롤러(82)는 내측의 캠단부(81b)와 외측의 테두리림부(72)에 끼어진 상태가 되고, 이후로는 오퍼레이팅캠(81), 롤러(82) 및 테두리림부(72), 즉 컨트롤플레이트(70)가 일체로 회전한다.When the operating cam 81 rotates in this state, as shown in FIG. 5B, the cam end portion 81b which makes the receiving space S the narrowest makes the roller 82 circumferentially, specifically, relatively wide. It rotates while pushing to the middle part of this wide accommodation space (S). The roller 82 which has been pushed to some extent is caught in the cam portion 81b on the inner side and the rim portion 72 on the outer side, and the operating cam 81, the roller 82, and the rim portion 72 thereafter. That is, the control plate 70 rotates integrally.
컨트롤플레이트(70)의 회전은 반대편 롤러(82)가 고정돌기(22)에 닿아 정지되고 스프링(83)의 압축한도까지 이루어지며, 이후 오퍼레이팅캠(81)에 가했던 회전력을 해제하면 상기 스프링(83)의 복원력에 의해 이동하였던 롤러(82)가 다시 도 5a의 원위치로 복귀하면서 캠단부(81b)를 원주방향으로 회전시켜 원위치시킨다.The rotation of the control plate 70 is stopped by the opposite roller 82 touches the fixing protrusion 22 and reaches the compression limit of the spring 83, and then releases the rotation force applied to the operating cam 81 to release the spring ( The roller 82, which has been moved by the restoring force of 83, returns to the original position of FIG. 5A, and rotates the cam end portion 81b in the circumferential direction to return it to its original position.
한편, 본 실시예에서 롤러(82)는 소구경 롤러(82-1)가 외측에 그리고 대구경 롤러(82-2)가 내측에 배치되도록 한 조를 이룸으로써 폭이 좁은 수용공간(S)의 단부에 알맞은 사이즈를 가질 수 있으며 동시에 내외측 접촉되는 부분이 증가됨으로써 테두리림부(72)에 대한 전달력의 향상을 달성할 수 있다.On the other hand, in the present embodiment, the roller 82 has an end portion of the narrow receiving space S by forming a group in which the small-diameter roller 82-1 is disposed outside and the large-diameter roller 82-2 is disposed inside. It can have a suitable size and at the same time the portion of the inner and outer contact is increased to achieve an improvement in the transmission force to the rim (72).
브레이크스프링(60)의 작동 메커니즘을 살펴보면, 도 6a에 도시된 바와 같이, 외주면이 하우징(10)의 내주면에 밀착된 브레이크스프링(60)은 일측에 접선방향에 대해 소정각도 경사진 방향으로 절단면(62)을 가짐으로써 이 절단면(62)을 이루는 양측 접촉부의 상대적인 슬라이드, 즉 슬립(slip)이 이루어지는 방향에 따라 벌어지거나 오므라드는 작용을 한다.Looking at the operation mechanism of the brake spring 60, as shown in Figure 6a, the brake spring 60 whose outer peripheral surface is in close contact with the inner peripheral surface of the housing 10 is a cutting surface in a direction inclined at a predetermined angle with respect to the tangential direction on one side ( 62, it acts to open or retract along the relative sliding, ie, slip, direction of the two contact portions forming this cut surface 62.
상기와 같은 브레이크스프링(60)의 내측으로는 브레이크캠(50)이 배치되며, 이때 브레이크캠(50)의 캠면의 일부는 상기 절단면(62)에 인접하여 내측으로 돌출 형성되는 제1 작용부(63)와 접촉 내지 밀접하게 근접하도록 위치한다.The brake cam 50 is disposed inside the brake spring 60 as described above, and a part of the cam surface of the brake cam 50 protrudes inwardly adjacent to the cutting surface 62. 63) in contact with or in close proximity.
이 상태에서 브레이크캠(50)이 반시계방향으로 회전할 경우, 그 캠면이 상기 제1 작용부(63)를 접촉 가압하게 되고, 이에 따라 절단면(62)에서의 일방향 슬립(화살표 참조)이 발생하여 브레이크스프링(60, 즉 60-1)은 벌어지게 됨으로써 하우징(10)의 내주면에 더욱 밀착하여 그 사이의 마찰력이 크게 증가하게 된다.In this state, when the brake cam 50 rotates in the counterclockwise direction, the cam surface comes into contact with and pressurizes the first acting portion 63, thereby generating a one-way slip (see arrow) at the cutting surface 62. Therefore, the brake spring 60, that is, 60-1 is opened to be in close contact with the inner circumferential surface of the housing 10, thereby greatly increasing the friction force therebetween.
이러한 마찰력으로 인해 브레이크스프링(60)의 반시계방향 회전은 저지되고, 이로 인해 브레이크캠(50)의 반시계방향 회전 역시 저지된다.Due to this friction force, the counterclockwise rotation of the brake spring 60 is prevented, and thus the counterclockwise rotation of the brake cam 50 is also prevented.
브레이크캠(50)이 반대방향, 즉 시계방향으로 회전하려고 하는 경우에도 나머지 하나의 브레이크스프링(60-2)에 의해 저지된다.Even when the brake cam 50 tries to rotate in the opposite direction, that is, clockwise, it is blocked by the other brake spring 60-2.
한편, 브레이크스프링(60)은 절단면(62)과 인접하여 하우징(10)의 내측으로 연장되는 탄성아암부(66)를 형성하고 브레이크캠(50)에 의해 접촉되어 탄성변형된 상태로 유지되도록 함으로써 절단면(62)에서의 면접촉 상태가 항상 유지되도록 하는 것이 바람직하다.Meanwhile, the brake spring 60 forms an elastic arm portion 66 extending inwardly of the housing 10 adjacent to the cutting surface 62 and is kept in contact with the brake cam 50 to be elastically deformed. It is preferable that the surface contact state at the cutting surface 62 is always maintained.
이와는 상반되게, 앞서 설명한 바와 같이 컨트롤플레이트(70)를 통한 반시계방향으로의 회전 입력이 이루어지는 경우에는, 상기 컨트롤플레이트(70)로부터 축방향으로 연장된 돌출아암(71)이 이와 반시계방향으로 인접되게 배치되도록 브레이크스프링(60, 즉 60-1) 측에 돌출 형성되는 제2 작용부(64)가 상기 회전하는 돌출아암(71)에 접촉 가압되며 이 경우, 도 6b에 도시된 바와 같이, 절단면(62)에서 타방향의 슬립(화살표 참조)이 발생하여 브레이크스프링(60, 즉 60-1)은 오므라들게 되어 하우징(10)의 내주면과의 마찰력이 크게 떨어짐과 동시에 돌출아암(71)과 함께 회전하게 된다.On the contrary, when the rotation input in the counterclockwise direction is made through the control plate 70 as described above, the protruding arm 71 extending in the axial direction from the control plate 70 is counterclockwise. The second acting portion 64 protruding on the side of the brake spring 60, that is, 60-1 so as to be adjacently contacted and pressed against the rotating protruding arm 71, in this case, as shown in FIG. 6B, Slip in the other direction (see arrow) is generated at the cutting surface 62, so that the brake spring 60, i.e., 60-1, is retracted so that the frictional force with the inner peripheral surface of the housing 10 is greatly reduced and at the same time, Will rotate together.
그리고, 브레이크스프링(60)에서 제2 작용부(64)와 인접하여 각을 이루는 제3 작용부(65)가 회전하면서 브레이크캠(50)을 가압 회전시키게 된다.In addition, the brake cam 50 is rotated under pressure while the third acting portion 65 angularly adjacent to the second acting portion 64 rotates in the brake spring 60.
이때, 반대편 브레이크스프링(60-2)에 대하여는 브레이크캠(50)의 일단부(52)가 상기 브레이크스프링(60-2) 측의 탄성아암부(66)를 반시계방향으로 밀어 해당 절단면(62')에서의 슬립을 유발하여 브레이크스프링(60-2)이 오므라들게 되어 역시 회전할 수 있게 된다.At this time, with respect to the opposite brake spring (60-2), one end portion 52 of the brake cam 50 pushes the elastic arm portion 66 of the brake spring (60-2) counterclockwise to the corresponding cut surface (62). ') Causes a slip in the brake spring (60-2) is retracted to be able to rotate as well.
돌출아암(71)이 시계방향으로 회전하는 경우에도 상기와 같은 메커니즘으로 나머지 하나의 브레이크스프링(60-2)을 회전시킴으로써 브레이크캠(50)의 시계방향 회전을 달성할 수 있다.Even when the protruding arm 71 rotates in the clockwise direction, it is possible to achieve clockwise rotation of the brake cam 50 by rotating the other brake spring 60-2 with the same mechanism as described above.
한편, 이상에서 설명된 차량 시트용 펌핑디바이스(1)는 본 발명의 이해를 돕기 위한 일실시예에 불과하므로 본 발명의 권리범위 내지 기술적 범위가 상기 설명된 바에 한정되는 것으로 이해되어서는 곤란하다.On the other hand, since the pumping device 1 for a vehicle seat described above is only one embodiment to help understanding of the present invention, it is difficult to understand the scope of the present invention to the technical scope of the present invention.
본 발명의 권리범위 내지 기술적 범위는 후술하는 특허청구범위 및 그 균등범위에 의해 정하여진다.The scope of the invention to the technical scope is defined by the claims and equivalents described below.

Claims (8)

  1. 차량 시트용 펌핑디바이스(pumping device)에 있어서,In a pumping device for a vehicle seat,
    축이 관통되어 회전가능하게 지지되는 원통의 하우징과;A cylindrical housing through which the shaft is rotatably supported;
    상기 하우징에 수용되어 상기 축과 일체로 회전하는 브레이크캠과;A brake cam accommodated in the housing and rotating integrally with the shaft;
    상기 브레이크캠의 외측에 서로 대칭으로 배치되어 상기 하우징의 내주면에 밀착되게 삽입되며, 상기 브레이크캠의 회전방향에 따라 선택적으로 가압되어 벌어짐으로써 상기 하우징 내주면과의 사이에 발생하는 마찰력을 통해 상기 브레이크캠의 일측 및 타측 방향으로의 회전을 차단하는 한 쌍의 브레이크스프링과;The brake cams are symmetrically disposed on the outer side of the brake cam and are inserted in close contact with the inner circumferential surface of the housing, and are selectively pressed and opened according to the rotational direction of the brake cam. A pair of brake springs for blocking rotation in one and the other directions of the;
    상기 한 쌍의 브레이크스프링 상에 축방향으로 이웃하여 상기 하우징에 수용되고 축방향으로 연장 형성되는 돌출아암을 가지며, 회전 시 상기 돌출아암을 통해 상기 한 쌍의 브레이크스프링을 선택적으로 가압하여 오므림으로써 일측 또는 타측 방향으로 회전시키고 이와 함께 상기 브레이크캠을 같은 방향으로 회전시키는 컨트롤플레이트; 및A protruding arm received in the housing and extending in the axial direction adjacent to the pair of brake springs in an axial direction, and selectively pressing and pulling the pair of brake springs through the protruding arms during rotation; A control plate rotating in one or the other direction and rotating the brake cam in the same direction; And
    상기 컨트롤플레이트의 축방향 일측에 구비되어 회전 입력 시 상기 컨트롤플레이트와 맞물려 일체로 회전하고, 회전 입력 소멸 시 상기 컨트롤플레이트와의 맞물림이 해제되어 원위치로 복귀하는 양방향 클러치 수단을 포함하는 것을 특징으로 하는 차량 시트용 펌핑디바이스.It is provided on one side in the axial direction of the control plate is engaged with the control plate and rotates integrally when the rotation input, and when the rotation input is extinguished the engagement with the control plate is characterized in that it comprises a bidirectional clutch means for returning to the original position Pumping device for vehicle seats.
  2. 제1항에 있어서,The method of claim 1,
    상기 브레이크스프링은,The brake spring is,
    외주면이 상기 하우징의 내주면에 밀착되고 일측에 절단면을 갖는 링(ring)으로서, 내측에 상기 브레이크캠의 회전 시 접촉되는 제1 작용부와 상기 컨트롤플레이트의 돌출아암의 회전 시 접촉되는 제2 작용부가 형성됨으로써,A ring having an outer circumferential surface in close contact with the inner circumferential surface of the housing and having a cut surface at one side thereof, wherein a first actuating portion contacted when the brake cam rotates and a second actuating portion contacting when the protruding arm of the control plate rotates. Formed,
    상기 브레이크캠의 회전에 의해 상기 제1 작용부가 접촉 가압되는 경우 상기 절단면에서의 일방향 슬립(slip)으로 인해 벌어지고,When the first acting portion is pressed by contact by the rotation of the brake cam is caused due to the one-way slip (slip) on the cutting surface,
    상기 돌출아암의 회전에 의해 상기 제2 작용부가 접촉 가압되는 경우 상기 절단면에서의 반대방향 슬립으로 인해 오므려지는 것을 특징으로 하는 차량 시트용 펌핑디바이스.And the second acting portion is contacted and pressurized by the rotation of the protruding arm to be retracted due to slip in the opposite direction at the cut surface.
  3. 제2항에 있어서,The method of claim 2,
    상기 브레이크스프링은,The brake spring is,
    상기 절단면과 인접하여 상기 하우징의 내측으로 연장되는 탄성아암부가 더 형성되고, 상기 탄성아암부는 상기 브레이크캠에 접촉하여 탄성변형된 상태로 유지됨으로써 상기 절단면에서의 면접촉 상태가 항상 유지되는 것을 특징으로 하는 차량 시트용 펌핑디바이스.An elastic arm portion is further formed adjacent to the cut surface and extends inwardly of the housing, and the elastic arm portion is in contact with the brake cam and is maintained in a deformed state so that the surface contact state at the cut surface is always maintained. Pumping device for vehicle seat.
  4. 제2항에 있어서,The method of claim 2,
    상기 브레이크스프링은,The brake spring is,
    회전 시 상기 브레이크캠을 상기 돌출아암부와 같은 방향으로 가압 회전시키는 제3 작용부가 상기 제2 작용부에 이웃하여 형성되는 것을 특징으로 하는 차량 시트용 펌핑디바이스.The pumping device for a vehicle seat, characterized in that the third acting portion for pressing and rotating the brake cam in the same direction as the protruding arm portion is formed adjacent to the second acting portion.
  5. 제1항에 있어서,The method of claim 1,
    상기 한 쌍의 브레이크스프링은 축방향으로 서로 적층되게 구비되며 각각 2 이상씩 구비되는 것을 특징으로 하는 차량시트용 펌핑디바이스.The pair of brake springs are provided to be stacked on each other in the axial direction, each of the pumping device for a vehicle seat, characterized in that provided with at least two.
  6. 제1항에 있어서,The method of claim 1,
    상기 컨트롤플레이트는 상기 돌출아암의 반대편 축방향으로 테두리림부가 돌출 형성되고,The control plate protrudes from the rim in the axial direction opposite to the protruding arm,
    상기 양방향 클러치 수단은,The bidirectional clutch means,
    상기 테두리림부에 회전 가능하게 수용되어 상기 테두리림부와의 사이에 원주방향으로 양측 단부가 점차 좁아지는 복수의 수용공간을 형성하는 오퍼레이팅캠과; 각 수용공간의 양측 단부에 수용되는 한 쌍의 롤러; 및 상기 한 쌍의 롤러 사이에 수용되어 상기 한 쌍의 롤러를 원주방향으로 가압하는 스프링을 포함하되,An operating cam rotatably received at the edge portion to form a plurality of receiving spaces between the edge portion and the edge portion gradually narrowed in the circumferential direction; A pair of rollers accommodated at both ends of each accommodation space; And a spring accommodated between the pair of rollers to pressurize the pair of rollers in a circumferential direction.
    상기 한 쌍의 롤러는 각각 외측의 소구경 롤러와 내측의 대구경 롤러가 한 조를 이루어 구비되는 것을 특징으로 하는 차량 시트용 펌핑디바이스.Each of the pair of rollers is a pumping device for a vehicle seat, characterized in that the outer small diameter rollers and the inner large diameter rollers are formed in a pair.
  7. 제6항에 있어서,The method of claim 6,
    상기 하우징과 결합하여 상기 하우징과의 사이에 상기 브레이크캠, 상기 한 쌍의 브레이크스프링, 상기 컨트롤플레이트 및 상기 양방향 클러치 수단을 수용하는 커버플레이트를 더 포함하고,And a cover plate coupled to the housing to accommodate the brake cam, the pair of brake springs, the control plate, and the bidirectional clutch means.
    상기 커버플레이트는,The cover plate,
    상기 축방향으로 연장 형성되는 복수의 고정돌기가 상기 스프링의 반대편에서 상기 한 쌍의 롤러를 원주방향으로 지지하는 것을 특징으로 하는 차량 시트용 펌핑디바이스.And a plurality of fixing protrusions extending in the axial direction to support the pair of rollers in the circumferential direction on the opposite side of the spring.
  8. 제7항에 있어서,The method of claim 7, wherein
    상기 오퍼레이팅캠의 축방향 일측면에 결합하여 일체로 회전하며, 상기 커버플레이트를 축방향으로 관통하는 복수의 오퍼레이팅돌기가 형성되는 커넥팅플레이트와;A connecting plate coupled to one axial side surface of the operating cam to rotate integrally and having a plurality of operating protrusions penetrating the cover plate in an axial direction;
    상기 커버플레이트의 외측면에서 상기 복수의 오퍼레이팅돌기와 결합하여 상기 커넥팅플레이트와 일체로 회전하는 레버플레이트를 더 포함하는 것을 특징으로 하는 차량 시트용 펌핑디바이스.And a lever plate coupled to the plurality of operating protrusions on the outer side of the cover plate to rotate integrally with the connecting plate.
PCT/KR2016/002171 2015-03-11 2016-03-04 Vehicle seat pumping device WO2016144049A1 (en)

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