WO2010134698A2 - Round recliner for a vehicle seat - Google Patents

Round recliner for a vehicle seat Download PDF

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Publication number
WO2010134698A2
WO2010134698A2 PCT/KR2010/002295 KR2010002295W WO2010134698A2 WO 2010134698 A2 WO2010134698 A2 WO 2010134698A2 KR 2010002295 W KR2010002295 W KR 2010002295W WO 2010134698 A2 WO2010134698 A2 WO 2010134698A2
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WO
WIPO (PCT)
Prior art keywords
gear
cam
lock
receiving portion
spring
Prior art date
Application number
PCT/KR2010/002295
Other languages
French (fr)
Korean (ko)
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WO2010134698A3 (en
Inventor
정태주
김훈
Original Assignee
주식회사 오스템
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Application filed by 주식회사 오스템 filed Critical 주식회사 오스템
Publication of WO2010134698A2 publication Critical patent/WO2010134698A2/en
Publication of WO2010134698A3 publication Critical patent/WO2010134698A3/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60NSEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/22Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable
    • B60N2/225Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by cycloidal or planetary mechanisms
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60NSEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/22Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable
    • B60N2/235Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by gear-pawl type mechanisms
    • B60N2/2356Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by gear-pawl type mechanisms with internal pawls
    • B60N2/2362Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by gear-pawl type mechanisms with internal pawls rotatably movable
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60NSEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/22Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable

Definitions

  • the present invention relates to a round recliner for a vehicle seat, and more particularly, to a round recliner for a vehicle seat, in which a compact structure, in particular, a thinner thickness not only lowers weight but also increases space efficiency.
  • a round recliner is a device for adjusting the angle of rotation of the seatback relative to the seat cushion, mounted on the seat, in particular the seat of the vehicle.
  • round recliners have been made in terms of high strength and high rigidity that can withstand external shocks for the safety of the occupants, and accordingly, the components constituting the round recliner are also designed to be large and thick.
  • An object of the present invention is to provide a round recliner for a vehicle seat capable of lowering weight and improving space efficiency while maintaining safety.
  • the present invention provides a support rim formed on an outer circumference, a gear receiving portion adjacent to the inner side of the support rim, and a plurality of lock gear guide protrusions disposed at a predetermined interval in the circumferential direction adjacent to the inside of the gear receiving portion.
  • the cam receiving portion of the holder is formed to extend the cam guide portion forming the same layer as the plurality of spring receiving portion, the cam is accommodated in the cam receiving portion and the body portion to interact with the plurality of lock gear, Is formed extending from the body portion is received and rotatably supported by the cam guide portion and has a plurality of working projections are arranged at regular intervals in the circumferential direction, each of the spring is one end of the plurality of working projections in the rotation direction It can also be configured to elastically press.
  • the sector gear is formed of the first sector gear layer made of the gear, the second sector gear layer made of the cover portion and the third formed of a plurality of engaging projections which are formed at regular intervals in the circumferential direction protruding to the upper surface of the cover portion;
  • the sector gear layer may be formed so that the thickness of the sector gear corresponds to the length from the bottom surface of the first sector gear layer to the top surface of the third sector gear layer.
  • the protruding thicknesses of the plurality of lock gear guide protrusions may be configured to be smaller than the thicknesses of the plurality of lock gears that are sliding guided thereby.
  • the cam has a plurality of operating projections for pressing and sliding the plurality of lock gears on the outer circumferential surface, the lock gear is guided by the operating projections and reciprocally slide between the locking position and the unlocking position, the locking
  • the pressing protrusion for contacting and pressurizing the actuating protrusion at the time of positioning may be additionally formed.
  • the gear of the sector gear is formed with an inner tooth on the inner circumferential surface
  • the lock gear is formed on the outer circumferential surface of the outer gear engaging with the inner tooth of the gear at the locking position
  • the outer gear of the lock gear is formed with the inner tooth of the gear gear It may be formed to engage with the internal teeth on the outside of the pitch circle.
  • the outer edge of the lock gear may be additionally protruded from the round end portion for reinforcing the end portion thereof, and may engage with the inner tooth through the round end portion.
  • the thickness of the holder can be reduced by designing the spring receiving portion of the holder inside the emboss, and the sector gear is also connected to the gears, the cover portion, and the engaging projections.
  • the thickness can be reduced by forming two layers. Accordingly, the overall thickness of the round recliner for the vehicle seat can be reduced, thereby achieving weight reduction and improved space efficiency.
  • the thickness of the lock gear guide protrusion is made thinner than that of the lock gear so that the lock gear guide protrusion is recessed by the pressurization of the lock gear during a strong external impact, thereby preventing the seat back from being caught and improving safety.
  • FIG. 1 and 2 are an exploded perspective view of the vehicle seat round recliner according to an embodiment of the present invention when viewed from the top and bottom, respectively;
  • FIG. 3 is a cross-sectional view showing a coupling state of the round recliner for a vehicle seat of FIG. 1;
  • 4 and 5 are a plan view for explaining the operation of the round recliner for a vehicle seat of FIG.
  • FIG. 6 is a perspective view showing one component of a conventional round recliner for a vehicle seat
  • FIG. 7 is a bottom view showing a modification of the round recliner for a vehicle seat according to the embodiment of the present invention.
  • FIG. 8 is an enlarged view of a portion A of FIG. 7.
  • a round recliner for a vehicle seat includes a holder 110 and a sector gear 150 coupled to each other up and down, and between them.
  • a plurality of lock gears 120, cams 130, and a plurality of springs 140 are received and supported.
  • Holder 110 has a support rim (111) formed on the outer periphery, the gear receiving portion 112 adjacent to the inner side of the support rim 111 is formed.
  • the gear rim 112 receives and rotates the gear 151 of the sector gear 150 to be described later, and the support rim 111 supports the outer surface of the gear 151.
  • a plurality of lock gear guide protrusions 113 are formed to be arranged at regular intervals in the circumferential direction. Each lock gear guide protrusion 113 guides that the lock gear 120 slides during locking and unlocking.
  • a cam accommodating part 114 for accommodating and supporting the cam 130 is formed inside the plurality of lock gear guide protrusions 113.
  • the plurality of lock gears 120 are accommodated inside the holder 110, but are seated on the bottom surface 115 such as the plurality of lock gear guide protrusions 113 and guided by the plurality of guide protrusions 113.
  • the slide position is reciprocated between the locked position (see FIG. 4) and the unlocked position (see FIG. 5).
  • the cam 130 is accommodated in the cam receiving portion 114 of the holder 110 to be rotatably supported, and is integrally rotated by engaging with the operating shaft 10 through the shaft coupling hole 131 of the central portion.
  • the holder 110 is a plurality of first emboss (embo, 116) and the second emboss 117 protruding to the outer surface (that is, the lower surface) are arranged so as to be spaced in a circumferential direction, respectively. It is formed is inserted into the coupling hole provided in any one side of the seat cushion and the seat back through these are coupled.
  • the holder 110 has a plurality of spring receiving portion 118 is formed between each of the plurality of the lock gear guide protrusion 113 described above, each of the spring receiving portion 118
  • the back surface is formed to coincide with the first emboss 116 described above.
  • the accommodating function of the spring 140 and the supporting function of the holder 110 are simultaneously achieved through the spring accommodating part 118 and the first emboss 116 formed integrally with each other.
  • each spring accommodating part 118 is connected with the cam accommodating part 114 of the center.
  • the spring 140 is accommodated in each spring receiving portion 118, the central end 141 of the spring is supported by a support protrusion 119 protruding in the center of the spring receiving portion 118, The outer end portion 142 extends to the inner cam receiving portion 114 to elastically press the cam 130 in one rotational direction.
  • the spring for rotating the cam is arranged to be laminated on the upper surface or the lower surface of the cam, so that the overall thickness of the recliner is designed to be thick.
  • the formation of 118 may reduce the overall thickness of the recliner.
  • the size of the spring, especially the upper and lower width is formed so large that the thickness of the recliner for accommodating it is designed to be thick, according to the present invention a plurality of springs 140 Since the load is divided by the elastic force required for the rotation of the cam 130, the size can also be formed small, so that the thickness of the recliner can be designed thinner than the prior art.
  • a cam guide portion 119-1 forming the same layer as the plurality of spring receiving portions 118 is extended to the cam receiving portion 114 of the holder 110.
  • the cam 130 also has a body portion 132 interacting with the lock gear 120 and a plurality of action protrusions extending to the lower side of the body portion 132 to interact with the spring 140. It is formed to be divided by (133).
  • the plurality of action protrusions 133 are formed on the lower side of the body portion 132 at regular intervals in the circumferential direction and are rotatably supported by the cam guide portion 119-1.
  • Each action protrusion 133 is rotationally pressed by the outer end 142 of each spring 140 (see FIGS. 4 and 5).
  • the sector gear 150 is inserted into the coupling hole provided on the other side of the seat cushion and the seat back through a plurality of engaging projections 152 which are formed to protrude to the outer surface (that is, the upper surface) and are spaced at regular intervals in the circumferential direction To combine.
  • the factors for determining the thickness of the sector gear 150 include a gear 151 as a first sector gear layer and a gear 151 as a second sector gear layer.
  • a cover portion 153 extending inwardly to cover the plurality of lock gears 120, the cam 130, and the like, and finally, a plurality of protrusions formed on the upper surface of the cover portion 153 as a third sector gear layer.
  • the thickness of the sector gear 150 corresponds to the length from the bottom surface of the first sector gear layer to the top surface of the third sector gear layer.
  • a sector gear layer needs to be additionally formed in the sector gear to accommodate a spring provided on the upper surface of the cam.
  • a separate sector gear layer is unnecessary.
  • the thickness of the gear 150 itself may also be designed thinner than in the prior art.
  • a separate sector gear layer (L in FIG. 6) is formed on the cover part 153 as a means for limiting the range of the reclining angle of the seatback.
  • the thickness of the sector gear 150 can be further reduced.
  • the protrusion thickness t1 of the lock gear guide protrusion 113 on the holder 110 side for guiding the lock gear 120 is the lock gear. Characterized in that it is smaller than the thickness (t2) of 120, according to the prior art that the thickness of the lock gear and the lock gear guide projections are the same as the tooth coupling between the internal gear 154 of the lock gear and the sector gear If an impact to the front or rear through the sector gear occurs in the locked state, the lock gear slides in the direction in which the locking is released along the lock gear guide protrusion due to the impact, and the seat back is free as the unlocking state occurs. There was a meeting of events.
  • the present invention in which the protruding thickness t1 of the lock gear guide protrusion 113 is smaller than the thickness t2 of the lock gear 120 as described above, the lock gear 120 and the sector gear
  • the lock gear guide protrusion 113 is deformed in the circumferential direction due to the pressurization of the lock gear 120 that has received the rotational force of 150, so that the locking state between the lock gear 120 and the sector gear 150 remains unchanged. Since it can hold
  • the upper and lower holders 110 and the sector gears 150 are coupled to each other by the outer circumference of the holder 110 and the sector gear 150, so that the coupling state between the components can be maintained (see FIG. 3).
  • the round recliner 100 for a vehicle seat includes a cam (not shown) to reciprocally slide the plurality of lock gears 120 between a locked position and an unlocked position. 130 and a plurality of actuating protrusions 134 formed in the lock position, and a plurality of actuating protrusions 121 protruding from each of the lock gears 120 so as to contact and pressurize the plurality of actuating protrusions 134 at the locking position. It may be.
  • the actuating protrusion 134 of the cam 130 in the locking position of the lock gear 120 is always maintained in the pressurized state by the pressing protrusion 121, so that the external shock is the sector gear 150 And transmitted to the cam 130 through the lock gear 120 to prevent the locking state of the lock gear 120 from being released as the cam 130 rotates in the unlocking direction (counterclockwise in FIG. 7).
  • the external shock transmitted through the lock gear 120 acts as a strong pressure on the actuating protrusion 134 of the pressurizing protrusion 121, thus rather depressing the actuating protrusion 134 to rotate the cam 130 itself. Will be prevented in advance.
  • the lock gear 120 in the locked position is geared 151 of the sector gear 150. ) Will be matched with).
  • FIG. 8 is an enlarged view of the area A, wherein the gear 151 of the sector gear 150 has an inner tooth 154 formed on its inner circumferential surface, and the lock gear 120 is geared on its outer circumferential surface. It can be seen that the outer tooth 122 is engaged with the inner tooth 154 of 151.
  • the outer tooth 122 of the lock gear 120 is formed to engage with the inner tooth 154 in a pitch circle (p) to be formed with the inner tooth 154 of the gear 151, the
  • the inner tooth 154 may be formed to engage with the inner tooth 154 in a region C outside the pitch circle p (that is, the tooth root side of the inner tooth 154).
  • the gear 151 through the round end R is formed by additionally protruding the round end R for reinforcement at the end of the outer tooth 122 of the lock gear 120. Can be engaged with the internal tooth (154).
  • the outer tooth 122 of the lock gear 120 has a tooth tip height L extending deeper in the direction of the inner tooth 154 of the gear 151.
  • the round recliner 100 for a vehicle seat described above is just one embodiment for better understanding of the present invention, and thus the scope of the present invention should not be considered as being limited thereto.

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Seats For Vehicles (AREA)

Abstract

The present invention relates to a round recliner for a vehicle seat, wherein a holder (110) has a plurality of spring accommodation portions (118) recessed among a plurality of lock gear guide protrusions (113) arranged adjacent to one another along a circumferential direction. Each of the spring accommodation portions (118) has an embossment (116) protruding from a surface thereof and rounded toward the outer circumference of the holder (110). The spring accommodation portions (118) are connected to respective cam accommodation portions (114) formed inside the respective spring accommodation portions (118). Each of the spring accommodation portions (118) accommodates and supports a spring (140) such that one end (142) of the spring (140) elastically presses a cam (130) to rotate the cam (130). Thus, the safety of the round recliner for a vehicle seat is maintained while reducing the weight of the recliner and improving the efficiency of space usage.

Description

차량 시트용 라운드 리클라이너Round Recliner for Vehicle Seat
본 발명은 차량 시트용 라운드 리클라이너에 관한 것으로서, 보다 상세하게는 컴팩트한 구조, 특히 두께가 얇아짐으로써 중량을 낮출 뿐 아니라 공간 효율성을 높인 차량 시트용 라운드 리클라이너에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a round recliner for a vehicle seat, and more particularly, to a round recliner for a vehicle seat, in which a compact structure, in particular, a thinner thickness not only lowers weight but also increases space efficiency.
라운드 리클라이너(round recliner)는 시트, 특히 차량의 시트에 장착되어 시트 쿠션(seat cushion)에 대한 시트백(seatback)의 회동 각도를 조절하기 위한 장치이다.A round recliner is a device for adjusting the angle of rotation of the seatback relative to the seat cushion, mounted on the seat, in particular the seat of the vehicle.
종래의 라운드 리클라이너는 탑승자의 안전을 위해 외부 충격에도 견딜 수 있는 고강도 및 고강성의 관점에서 이루어져 왔으며, 이에 따라 상기 라운드 리클라이너를 구성하는 부품들 또한 크고 두껍게 설계되었다.Conventional round recliners have been made in terms of high strength and high rigidity that can withstand external shocks for the safety of the occupants, and accordingly, the components constituting the round recliner are also designed to be large and thick.
그러나, 최근들어 친환경 및 저연비를 달성하기 위한 기술들이 제안되고 있는 추세에 따라, 차량 시트에 대하여도 안전성을 거의 그대로 유지하면서도 중량을 낮추기 위한 방안이 요구되었다.However, in recent years, as technologies for achieving eco-friendliness and low fuel consumption have been proposed, a method for lowering the weight while maintaining the safety of the vehicle seat is almost required.
마찬가지 이유에서, 소형차에 대한 수요도 높아지고 있는 추세에 따라 안전성을 그대로 유지하면서도 설치 공간을 적게 차지할 수 있는 실용적인 라운드 리클라이너에 대한 수요가 증대되고 있다.For the same reason, the demand for compact cars is also increasing, and the demand for practical round recliners that can occupy less installation space while maintaining safety is increasing.
본 발명의 목적은 안전성을 유지하면서도 중량을 낮추고 공간 효율성을 향상시킬 수 있는 차량 시트용 라운드 리클라이너를 제공하는 데 있다.SUMMARY OF THE INVENTION An object of the present invention is to provide a round recliner for a vehicle seat capable of lowering weight and improving space efficiency while maintaining safety.
상기 목적을 달성하기 위해 본 발명은 외주연에 형성된 지지림, 상기 지지림의 내측에 인접한 기어림 수용부, 상기 기어림 수용부의 내측에 인접하여 원주 방향으로 일정 간격 배치되는 복수의 록기어 가이드 돌기, 상기 복수의 록기어 가이드 돌기의 내측으로 형성되는 캠 수용부를 갖는 홀더와; 상기 홀더에 수용되어 상기 복수의 록기어 가이드 돌기에 의해 슬라이딩 가이드되는 복수의 록기어와; 상기 캠 수용부에 수용되어 회전 시 상기 복수의 록기어를 가압 슬라이딩시키는 캠과; 상기 기어림 수용부에 수용되는 기어림, 상기 기어림의 내측으로 연장 형성되어 상기 복수의 록기어 및 상기 캠을 덮는 커버부를 가지며, 상기 슬라이딩되는 복수의 록기어에 의해 로킹 또는 언로킹되는 섹터기어를 포함하는 차량 시트용 라운드 리클라이너에 있어서, 상기 홀더는 원주방향으로 이웃하는 복수의 록기어 가이드 돌기의 사이마다 함입 형성되는 복수의 스프링 수용부를 가지되 각 스프링 수용부의 이면은 상기 홀더의 외측면으로 돌출되는 엠보를 형성하며, 상기 복수의 스프링 수용부는 각각 내측에 위치하는 상기 캠 수용부와 연결되고, 각 스프링 수용부에는 스프링이 수용 및 지지되어 각 스프링의 일단부가 상기 캠을 회전하도록 탄성 가압하는 것을 특징으로 하는 차량 시트용 라운드 리클라이너를 제공한다.In order to achieve the above object, the present invention provides a support rim formed on an outer circumference, a gear receiving portion adjacent to the inner side of the support rim, and a plurality of lock gear guide protrusions disposed at a predetermined interval in the circumferential direction adjacent to the inside of the gear receiving portion. A holder having a cam housing formed inwardly of the plurality of lock gear guide protrusions; A plurality of lock gears accommodated in the holder and slid by the plurality of lock gear guide protrusions; A cam accommodated in the cam accommodating portion and configured to pressurize and slide the plurality of lock gears during rotation; A sector gear which is geared to be accommodated in the gear receiving portion, extends inwardly of the gear and covers the plurality of lock gears and the cam to cover the cams, and which is locked or unlocked by the sliding plurality of lock gears; A round recliner for a vehicle seat comprising: a holder having a plurality of spring receptacles formed therebetween in a plurality of lock gear guide protrusions neighboring in a circumferential direction, wherein a back surface of each spring receptacle is an outer surface of the holder; And a plurality of spring receiving portions are connected to the cam receiving portions respectively located inside the spring receiving portions, and springs are received and supported at each spring receiving portion so that one end of each spring rotates the cam. A round recliner for a vehicle seat is provided.
여기서, 상기 홀더의 캠 수용부는 상기 복수의 스프링 수용부와 동일한 층을 이루는 캠 가이드부가 연장 형성되고, 상기 캠은 상기 캠 수용부에 수용되어 상기 복수의 록기어와 상호 작용하는 몸체부와, 상기 몸체부로부터 연장 형성되어 상기 캠 가이드부에 수용 및 회전 가능하게 지지되고 원주 방향으로 일정 간격 배치되는 복수의 작용 돌기를 가지며, 상기 각 스프링은 상기 일단부가 상기 복수의 작용 돌기 중 어느 하나를 회전방향으로 탄성 가압하도록 구성할 수도 있다.Here, the cam receiving portion of the holder is formed to extend the cam guide portion forming the same layer as the plurality of spring receiving portion, the cam is accommodated in the cam receiving portion and the body portion to interact with the plurality of lock gear, Is formed extending from the body portion is received and rotatably supported by the cam guide portion and has a plurality of working projections are arranged at regular intervals in the circumferential direction, each of the spring is one end of the plurality of working projections in the rotation direction It can also be configured to elastically press.
이때, 상기 섹터기어는 상기 기어림으로 이루어지는 제1 섹터기어층, 상기 커버부로 이루어지는 제2 섹터기어층 및 상기 커버부의 상면으로 돌출 형성되되 원주방향으로 일정 간격 배치되는 복수의 결합돌기로 이루어지는 제3 섹터기어층으로 이루어지며, 상기 섹터기어의 두께는 상기 제1 섹터기어층의 하단면으로부터 상기 제3 섹터기어층의 상단면까지의 길이에 해당하도록 구성할 수도 있다.In this case, the sector gear is formed of the first sector gear layer made of the gear, the second sector gear layer made of the cover portion and the third formed of a plurality of engaging projections which are formed at regular intervals in the circumferential direction protruding to the upper surface of the cover portion; The sector gear layer may be formed so that the thickness of the sector gear corresponds to the length from the bottom surface of the first sector gear layer to the top surface of the third sector gear layer.
또한, 상기 복수의 록기어 가이드 돌기의 돌출된 두께는 이에 의해 슬라이딩 가이드되는 상기 복수의 록기어의 두께보다 작도록 구성할 수도 있다.In addition, the protruding thicknesses of the plurality of lock gear guide protrusions may be configured to be smaller than the thicknesses of the plurality of lock gears that are sliding guided thereby.
또한, 상기 캠은 외주면에 상기 복수의 록기어를 가압 슬라이딩시키기 위한 복수의 작동돌기가 형성되고, 상기 록기어는 해당 작동돌기에 의해 가이드되어 로킹 위치와 언로킹 위치 사이에서 왕복 슬라이드되며, 상기 로킹 위치 시 상기 작동돌기를 접촉 가압하기 위한 가압돌기가 추가적으로 돌출 형성될 수도 있다.In addition, the cam has a plurality of operating projections for pressing and sliding the plurality of lock gears on the outer circumferential surface, the lock gear is guided by the operating projections and reciprocally slide between the locking position and the unlocking position, the locking The pressing protrusion for contacting and pressurizing the actuating protrusion at the time of positioning may be additionally formed.
또한, 상기 섹터기어의 기어림은 내주면으로 내치가 형성되고, 상기 록기어는 로킹 위치 시 상기 기어림의 내치에 치합하는 외치가 외주면에 형성되며, 상기 록기어의 외치는 상기 기어림의 내치와 형성하게 되는 피치원의 외측에서 상기 내치와 치합하도록 형성될 수도 있다.In addition, the gear of the sector gear is formed with an inner tooth on the inner circumferential surface, the lock gear is formed on the outer circumferential surface of the outer gear engaging with the inner tooth of the gear at the locking position, the outer gear of the lock gear is formed with the inner tooth of the gear gear It may be formed to engage with the internal teeth on the outside of the pitch circle.
여기서, 상기 록기어의 외치는 이끝 부분의 보강을 위한 라운드 단부가 부가적으로 돌출 형성되어, 상기 라운드 단부를 통해 상기 내치와 치합할 수도 있다.In this case, the outer edge of the lock gear may be additionally protruded from the round end portion for reinforcing the end portion thereof, and may engage with the inner tooth through the round end portion.
이상과 같은 본 발명에 따른 차량 시트용 라운드 리클라이너에 의하면, 홀더의 스프링 수용부를 엠보의 내측에 설계함으로써 상기 홀더의 두께를 줄일 수 있으며, 섹터기어 또한 기어림, 커버부 및 결합돌기로 이어지는 3개의 층으로 형성함으로써 그 두께를 줄일 수 있다. 이에 따라, 차량 시트용 라운드 리클라이너의 전체 두께를 줄일 수 있으므로 중량 감소 및 공간 효율성의 향상을 달성할 수 있다.According to the round recliner for a vehicle seat according to the present invention as described above, the thickness of the holder can be reduced by designing the spring receiving portion of the holder inside the emboss, and the sector gear is also connected to the gears, the cover portion, and the engaging projections. The thickness can be reduced by forming two layers. Accordingly, the overall thickness of the round recliner for the vehicle seat can be reduced, thereby achieving weight reduction and improved space efficiency.
그리고, 록기어 가이드 돌기의 두께를 록기어보다 더 얇게 형성함으로써 강한 외부 충격 시 상기 록기어 가이드 돌기가 록기어의 가압으로 함몰되도록 함으로써 시트백이 제껴지는 현상을 방지하여 안전성을 도모할 수 있다.In addition, the thickness of the lock gear guide protrusion is made thinner than that of the lock gear so that the lock gear guide protrusion is recessed by the pressurization of the lock gear during a strong external impact, thereby preventing the seat back from being caught and improving safety.
도 1 및 도 2는 본 발명의 실시예에 따른 차량 시트용 라운드 리클라이너를 각각 상부 및 하부에 바라보았을 때의 분해 사시도,1 and 2 are an exploded perspective view of the vehicle seat round recliner according to an embodiment of the present invention when viewed from the top and bottom, respectively;
도 3은 도 1의 차량 시트용 라운드 리클라이너의 결합 상태를 도시한 단면도,3 is a cross-sectional view showing a coupling state of the round recliner for a vehicle seat of FIG. 1;
도 4 및 도 5는 도 1의 차량 시트용 라운드 리클라이너의 작동을 설명하기 위한 평면도,4 and 5 are a plan view for explaining the operation of the round recliner for a vehicle seat of FIG.
도 6은 종래의 차량 시트용 라운드 리클라이너의 일 구성요소를 도시한 사시도,6 is a perspective view showing one component of a conventional round recliner for a vehicle seat;
도 7은 본 발명의 실시예에 따른 차량 시트용 라운드 리클라이너의 변형례를 도시한 저면도,7 is a bottom view showing a modification of the round recliner for a vehicle seat according to the embodiment of the present invention;
도 8은 도 7의 A 영역에 대한 부분 확대도이다.FIG. 8 is an enlarged view of a portion A of FIG. 7.
본 발명의 실시예에 따른 차량 시트용 라운드 리클라이너는, 도 1 및 도 2에 도시된 바와 같이, 상하로 결합되는 홀더(holder, 110)와 섹터기어(sector gear, 150), 그리고 이들 사이에 수용 및 지지되는 복수의 록기어(lock gear, 120), 캠(cam, 130), 복수의 스프링(140)을 포함한다.As shown in FIGS. 1 and 2, a round recliner for a vehicle seat according to an exemplary embodiment of the present invention includes a holder 110 and a sector gear 150 coupled to each other up and down, and between them. A plurality of lock gears 120, cams 130, and a plurality of springs 140 are received and supported.
홀더(110)는 외주연에 형성되는 지지림(support rim, 111), 이 지지림(111)의 내측에 인접한 기어림 수용부(112)가 형성된다. Holder 110 has a support rim (111) formed on the outer periphery, the gear receiving portion 112 adjacent to the inner side of the support rim 111 is formed.
기어림 수용부(112)에는 후술하는 섹터기어(150)의 기어림(151)이 수용되어 접촉 회전하며, 상기 지지림(111)은 기어림(151)의 외측면을 지지한다.The gear rim 112 receives and rotates the gear 151 of the sector gear 150 to be described later, and the support rim 111 supports the outer surface of the gear 151.
기어림 수용부(112)의 내측으로는 복수의 록기어 가이드 돌기(113)가 원주 방향으로 일정 간격 배치되도록 형성된다. 각 록기어 가이드 돌기(113)는 해당 록기어(120)가 로킹 및 언로킹 시 슬라이딩되는 것을 가이드한다.Inside the gear receiving portion 112, a plurality of lock gear guide protrusions 113 are formed to be arranged at regular intervals in the circumferential direction. Each lock gear guide protrusion 113 guides that the lock gear 120 slides during locking and unlocking.
복수의 록기어 가이드 돌기(113)의 내측으로는 상기 캠(130)을 수용 및 지지하기 위한 캠 수용부(114)가 형성된다.A cam accommodating part 114 for accommodating and supporting the cam 130 is formed inside the plurality of lock gear guide protrusions 113.
복수의 록기어(120)는 홀더(110)의 내측에 수용되되 상기한 복수의 록기어 가이드 돌기(113)와 같은 바닥면(115) 상에 안착되어 상기 복수의 가이드 돌기(113)에 의해 가이드된 상태로 로킹 위치(도 4 참조)와 언로킹 위치(도 5 참조) 간을 왕복 슬라이드 한다.The plurality of lock gears 120 are accommodated inside the holder 110, but are seated on the bottom surface 115 such as the plurality of lock gear guide protrusions 113 and guided by the plurality of guide protrusions 113. In the closed state, the slide position is reciprocated between the locked position (see FIG. 4) and the unlocked position (see FIG. 5).
캠(130)은 상기 홀더(110)의 캠 수용부(114)에 수용되어 회전 가능하게 지지되며, 중심부의 축 결합홀(131)을 통해 작동축(10)과 결합하여 일체로 회전한다.The cam 130 is accommodated in the cam receiving portion 114 of the holder 110 to be rotatably supported, and is integrally rotated by engaging with the operating shaft 10 through the shaft coupling hole 131 of the central portion.
캠(130)의 시계방향 회전 시, 복수의 록기어(120)는 가압되어 도 4의 로킹 위치에서 도 5의 언로킹 위치로 슬라이드된다. 반대로, 도 5의 언로킹 상태에서, 캠(130)의 반시계 방향 회전으로 인해 복수의 록기어(120)가 도 4의 로킹 위치로 복귀 슬라이드 된다.When the cam 130 rotates clockwise, the plurality of lock gears 120 are pressed and slide from the locking position of FIG. 4 to the unlocking position of FIG. 5. In contrast, in the unlocked state of FIG. 5, the plurality of lock gears 120 slide back to the locking position of FIG. 4 due to the counterclockwise rotation of the cam 130.
한편, 도 2를 참조하면, 홀더(110)는 외측면(즉, 하측면)으로 돌출되는 복수의 제1 엠보(embo, 116)와 제2 엠보(117)가 각각 원주방향으로 일정 간격 배치되도록 형성되어 이들을 통해 시트쿠션과 시트백 중 어느 일측에 마련된 결합홀에 삽입되어 결합한다.On the other hand, referring to Figure 2, the holder 110 is a plurality of first emboss (embo, 116) and the second emboss 117 protruding to the outer surface (that is, the lower surface) are arranged so as to be spaced in a circumferential direction, respectively. It is formed is inserted into the coupling hole provided in any one side of the seat cushion and the seat back through these are coupled.
이때, 도 1을 참조하면, 홀더(110)는 상기한 복수의 록기어 가이드 돌기(113)의 사이마다 함입 형성되는 복수의 스프링 수용부(118)를 가지되, 각 스프링 수용부(118)의 이면이 상기한 제1 엠보(116)와 일치하도록 형성된다.At this time, referring to Figure 1, the holder 110 has a plurality of spring receiving portion 118 is formed between each of the plurality of the lock gear guide protrusion 113 described above, each of the spring receiving portion 118 The back surface is formed to coincide with the first emboss 116 described above.
즉, 서로 일체로 형성되는 스프링 수용부(118)와 제1 엠보(116)를 통해 스프링(140)의 수용 기능과 홀더(110)의 지지 기능을 동시에 달성한다.That is, the accommodating function of the spring 140 and the supporting function of the holder 110 are simultaneously achieved through the spring accommodating part 118 and the first emboss 116 formed integrally with each other.
또한, 각 스프링 수용부(118)는 중앙의 캠 수용부(114)와 연결되어 있다.In addition, each spring accommodating part 118 is connected with the cam accommodating part 114 of the center.
이에 따라, 각 스프링 수용부(118)에는 스프링(140)이 수용되되, 상기 스프링의 중앙측 단부(141)는 스프링 수용부(118)의 중앙에 돌출 형성된 지지돌기(119)에 의해 지지되고, 외측 단부(142)는 내측의 캠 수용부(114)로 연장되어 캠(130)을 일측 회전방향으로 탄성 가압하게 된다.Accordingly, the spring 140 is accommodated in each spring receiving portion 118, the central end 141 of the spring is supported by a support protrusion 119 protruding in the center of the spring receiving portion 118, The outer end portion 142 extends to the inner cam receiving portion 114 to elastically press the cam 130 in one rotational direction.
종래의 라운드 리클라이너에 의하면, 캠을 회전시키기 위한 스프링이 상기 캠의 상면 내지 하면에 적층되게 배치됨으로써 이로 인해 리클라이너의 전체 두께가 두껍게 설계되었는 바, 본 발명에 의하면 상기와 같은 스프링 수용부(118)의 형성을 통해 리클라이너의 전체 두께를 감소시킬 수 있다.According to the conventional round recliner, the spring for rotating the cam is arranged to be laminated on the upper surface or the lower surface of the cam, so that the overall thickness of the recliner is designed to be thick. The formation of 118 may reduce the overall thickness of the recliner.
또한, 종래에는 단일의 스프링으로 캠을 회전시키도록 설계됨으로 인해 스프링의 사이즈, 특히 상하 폭이 크게 형성되어 이를 수용하기 위한 리클라이너의 두께도 두껍도록 설계되었으나, 본 발명에 의하면 복수의 스프링(140)이 캠(130)의 회전에 필요한 탄성력을 나누어 부담하게 되므로 그 사이즈 또한 작게 형성될 수 있으므로 결과적으로 리클라이너의 두께를 종래기술에 비해 더 얇게 설계할 수 있다.In addition, conventionally designed to rotate the cam with a single spring, the size of the spring, especially the upper and lower width is formed so large that the thickness of the recliner for accommodating it is designed to be thick, according to the present invention a plurality of springs 140 Since the load is divided by the elastic force required for the rotation of the cam 130, the size can also be formed small, so that the thickness of the recliner can be designed thinner than the prior art.
여기서, 홀더(110)의 캠 수용부(114)에는 상기한 복수의 스프링 수용부(118)와 동일한 층을 이루는 캠 가이드부(119-1)가 연장 형성된다.Here, a cam guide portion 119-1 forming the same layer as the plurality of spring receiving portions 118 is extended to the cam receiving portion 114 of the holder 110.
이에 대하여, 캠(130) 또한 록기어(120)와 상호 작용하는 몸체부(132)와, 이 몸체부(132)의 하측면으로 연장 형성되어 상기 스프링(140)과 상호 작용하는 복수의 작용 돌기(133)로 구분되도록 형성된다.On the contrary, the cam 130 also has a body portion 132 interacting with the lock gear 120 and a plurality of action protrusions extending to the lower side of the body portion 132 to interact with the spring 140. It is formed to be divided by (133).
복수의 작용 돌기(133)는 몸체부(132)의 하측면에 원주 방향으로 일정 간격 배치되게 형성되어 상기한 캠 가이드부(119-1)에 수용 및 회전 가능하게 지지된다.The plurality of action protrusions 133 are formed on the lower side of the body portion 132 at regular intervals in the circumferential direction and are rotatably supported by the cam guide portion 119-1.
각 작용 돌기(133)는 각 스프링(140)의 외측 단부(142)에 의해 회전 가압된다(도 4 및 도 5 참조).Each action protrusion 133 is rotationally pressed by the outer end 142 of each spring 140 (see FIGS. 4 and 5).
한편, 섹터기어(150)는 외측면(즉, 상측면)으로 돌출 형성되어 원주방향으로 일정 간격 배치되는 복수의 결합돌기(152)를 통해 시트쿠션과 시트백 중 다른 일측에 마련된 결합홀에 삽입되어 결합한다.On the other hand, the sector gear 150 is inserted into the coupling hole provided on the other side of the seat cushion and the seat back through a plurality of engaging projections 152 which are formed to protrude to the outer surface (that is, the upper surface) and are spaced at regular intervals in the circumferential direction To combine.
도 1 내지 도 3을 참조하여 이러한 섹터기어(150)의 두께를 결정하는 요소들을 살펴보면, 제1 섹터기어층으로서 기어림(151)이 있으며, 제2 섹터기어층으로서 상기 기어림(151)의 내측으로 연장 형성되어 복수의 록기어(120), 캠(130) 등을 덮는 커버부(153)가 있으며, 마지막으로 제3 섹터기어층로서 상기 커버부(153)의 상면에 돌출 형성되는 복수의 결합돌기(152)가 있다.Referring to FIGS. 1 to 3, the factors for determining the thickness of the sector gear 150 include a gear 151 as a first sector gear layer and a gear 151 as a second sector gear layer. There is a cover portion 153 extending inwardly to cover the plurality of lock gears 120, the cam 130, and the like, and finally, a plurality of protrusions formed on the upper surface of the cover portion 153 as a third sector gear layer. There is a coupling protrusion 152.
즉, 섹터기어(150)의 두께는 상기 제1 섹터기어층의 하단면으로부터 제3 섹터기어층의 상단면까지의 길이에 해당한다.That is, the thickness of the sector gear 150 corresponds to the length from the bottom surface of the first sector gear layer to the top surface of the third sector gear layer.
종래의 라운드 리클라이너에 의하면 섹터기어에는 캠의 상면에 마련되는 스프링을 수용하기 위해 별도의 섹터기어층을 추가로 형성하여야 하였음에 반해, 본 발명에 의하면 이와 같은 별도의 섹터기어층이 불필요하므로 섹터기어(150)의 자체 두께도 종래기술에 비해 더 얇게 설계할 수 있다.According to the conventional round recliner, a sector gear layer needs to be additionally formed in the sector gear to accommodate a spring provided on the upper surface of the cam. However, according to the present invention, such a separate sector gear layer is unnecessary. The thickness of the gear 150 itself may also be designed thinner than in the prior art.
기타, 종래의 라운드 리클라이너에는 시트백의 리클라이닝(reclining) 각도의 범위를 제한하기 위한 수단으로서 상기 커버부(153) 상에 별도의 섹터기어층(도 6의 L)을 형성하였으나, 본 발명에서는 이러한 구성을 배제함으로써 섹터기어(150)의 두께를 더욱 감소시킬 수 있다.In addition, in the conventional round recliner, a separate sector gear layer (L in FIG. 6) is formed on the cover part 153 as a means for limiting the range of the reclining angle of the seatback. By excluding the configuration, the thickness of the sector gear 150 can be further reduced.
한편, 본 발명의 실시예에 따른 차량 시트용 라운드 리클라이너(100)는 록기어(120)를 가이드하는 홀더(110) 측의 록기어 가이드 돌기(113)의 돌출 두께(t1)가 상기 록기어(120)의 두께(t2)보다 작은 것을 특징으로 하는 바, 록기어와 록기어 가이드 돌기의 두께가 서로 동일하였던 종래기술에 의할 경우 상기 록기어와 섹터기어의 내치(154) 간 치형 결합되는 로킹 상태에서 상기 섹터기어를 통한 전,후방으로의 충격이 발생하면, 록기어는 이 충격으로 인해 상기 록기어 가이드 돌기를 따라 로킹이 해제되는 방향으로 슬라이드되어 로킹 해제 상태가 발생함에 따라 시트백이 자유 회동하는 사태가 발생하기에 이르렀다.On the other hand, in the vehicle seat round recliner 100 according to an embodiment of the present invention, the protrusion thickness t1 of the lock gear guide protrusion 113 on the holder 110 side for guiding the lock gear 120 is the lock gear. Characterized in that it is smaller than the thickness (t2) of 120, according to the prior art that the thickness of the lock gear and the lock gear guide projections are the same as the tooth coupling between the internal gear 154 of the lock gear and the sector gear If an impact to the front or rear through the sector gear occurs in the locked state, the lock gear slides in the direction in which the locking is released along the lock gear guide protrusion due to the impact, and the seat back is free as the unlocking state occurs. There was a meeting of events.
이에 비해, 상기와 같이 록기어 가이드 돌기(113)의 돌출 두께(t1)가 상기 록기어(120)의 두께(t2)보다 더 작도록 한정되는 본 발명에 의하면, 록기어(120)와 섹터기어(150) 간 로킹 상태에서 상기 섹터기어(150)를 통한 전,후방으로의 충격 발생 시, 이 충격으로 상기 록기어(120)가 록기어 가이드 돌기(113)를 따라 슬라이드되기에 앞서 상기 섹터기어(150)의 회전력을 전달받은 록기어(120)의 가압으로 인해 상기 록기어 가이드 돌기(113)가 원주방향으로 변형하게 되어 상기 록기어(120)와 상기 섹터기어(150) 간 로킹 상태는 그대로 유지시킬 수 있으므로, 시트백이 자유 회동하는 현상을 방지할 수 있다. 이에 따라, 본 발명은 강한 외부 충격의 경우 홀더(110) 측 록기어 가이드 돌기(113)가 변형하도록 유도함으로써 시트백의 회동으로 인한 착석자의 사고를 예방할 수 있다.On the contrary, according to the present invention in which the protruding thickness t1 of the lock gear guide protrusion 113 is smaller than the thickness t2 of the lock gear 120 as described above, the lock gear 120 and the sector gear When the shock to the front and rear through the sector gear 150 occurs in the interlocking state between the 150 and 150, the sector gear before the lock gear 120 slides along the lock gear guide protrusion 113 by the impact. The lock gear guide protrusion 113 is deformed in the circumferential direction due to the pressurization of the lock gear 120 that has received the rotational force of 150, so that the locking state between the lock gear 120 and the sector gear 150 remains unchanged. Since it can hold | maintain, the phenomenon which the seatback rotates freely can be prevented. Accordingly, the present invention can prevent the accident of the seated occupant due to the rotation of the seat back by inducing the holder 110 side lock gear guide protrusion 113 in the case of a strong external impact.
상하로 결합되는 홀더(110)와 섹터기어(150)는 커버 하우징(160)에 의해 외주연부가 함께 둘러싸여 지지됨으로써 상기와 같은 구성요소간 결합 상태가 유지될 수 있다(도 3 참조).The upper and lower holders 110 and the sector gears 150 are coupled to each other by the outer circumference of the holder 110 and the sector gear 150, so that the coupling state between the components can be maintained (see FIG. 3).
이상과 같은 구성을 갖는 차량 시트용 라운드 리클라이너(100)의 작동은 도 4 및 도 5에 도시된 바와 같이 이루어진다.Operation of the vehicle seat round recliner 100 having the above configuration is made as shown in FIGS. 4 and 5.
도 4는 로킹 상태의 리클라이너(100)를 도시한 것으로서, 캠(130)은 각각의 스프링(140)에 의해 반시계 방향으로 가압된 상태이며 각 록기어(120)를 외측으로 밀어줌으로써 기어림 수용부(112)에 수용되는 기어림(도 2의 151)의 내치(154)에 치합되도록 한다.4 shows the recliner 100 in a locked state, in which the cam 130 is pressed counterclockwise by the respective spring 140 and crawled by pushing the lock gear 120 to the outside. It is to be engaged with the inner tooth 154 of the gear (151 of FIG. 2) accommodated in the receiving portion (112).
이때, 작동축(도 2의 10)의 회전 조작으로 캠(130)이 시계방향으로 회동하면 각 록기어(120)는 록기어 가이드 돌기(113)를 따라 내측으로 슬라이드 됨으로써 상기 기어림(151)과의 치합이 해제되어 언로킹 상태가 된다.At this time, when the cam 130 is rotated in the clockwise direction by the rotation operation of the operating shaft (10 in FIG. 2), each of the lock gear 120 is slid inward along the lock gear guide protrusion 113, the gear 151 The engagement with the is released and becomes the unlocked state.
한편, 본 발명의 실시예에 따른 차량 시트용 라운드 리클라이너(100)는, 도 7에 도시된 바와 같이, 복수의 록기어(120)를 로킹 위치와 언로킹 위치 사이에서 왕복 슬라이드시키기 위해 캠(130)에 형성되는 복수의 작동돌기(134)와, 로킹 위치 시 이들 복수의 작동돌기(134)를 접촉 가압하기 위해 각 록기어(120)에 추가적으로 돌출 형성되는 복수의 가압돌기(121)를 가질 수도 있다.Meanwhile, as shown in FIG. 7, the round recliner 100 for a vehicle seat according to an exemplary embodiment of the present invention includes a cam (not shown) to reciprocally slide the plurality of lock gears 120 between a locked position and an unlocked position. 130 and a plurality of actuating protrusions 134 formed in the lock position, and a plurality of actuating protrusions 121 protruding from each of the lock gears 120 so as to contact and pressurize the plurality of actuating protrusions 134 at the locking position. It may be.
이에 따라, 록기어(120)의 로킹 위치에서 캠(130)의 작동돌기(134)는 상기 가압돌기(121)에 의해 항상 가압된 상태를 유지하며, 이로 인해 외부의 충격이 섹터기어(150)와 록기어(120)를 통해 캠(130)에 전달되어 상기 캠(130)이 언로킹 방향(도 7에서는 반시계 방향)으로 회전함에 따라 록기어(120)의 로킹 상태가 해제되는 것을 방지할 수 있다.Accordingly, the actuating protrusion 134 of the cam 130 in the locking position of the lock gear 120 is always maintained in the pressurized state by the pressing protrusion 121, so that the external shock is the sector gear 150 And transmitted to the cam 130 through the lock gear 120 to prevent the locking state of the lock gear 120 from being released as the cam 130 rotates in the unlocking direction (counterclockwise in FIG. 7). Can be.
즉, 록기어(120)를 통해 전달되는 외부 충격은 가압돌기(121)의 작동돌기(134)에 대한 강력한 압력으로 작용함으로써 오히려 상기 작동돌기(134)를 함몰시키게 되어 캠(130) 자체의 회전을 미연에 방지시키게 되는 것이다.That is, the external shock transmitted through the lock gear 120 acts as a strong pressure on the actuating protrusion 134 of the pressurizing protrusion 121, thus rather depressing the actuating protrusion 134 to rotate the cam 130 itself. Will be prevented in advance.
그리고, 본 발명의 실시예에 따른 차량 시트용 라운드 리클라이너(100)는, 도 7의 A 영역 등에서 확인되는 바와 같이, 로킹 위치의 록기어(120)가 섹터기어(150)의 기어림(151)과 치합하게 된다.In the vehicle seat round recliner 100 according to the embodiment of the present invention, as shown in area A of FIG. 7 or the like, the lock gear 120 in the locked position is geared 151 of the sector gear 150. ) Will be matched with).
도 8은 상기 A 영역에 대한 확대도로서, 섹터기어(150)의 기어림(151)은 그 내주면으로 내치(154)가 형성되고, 이에 대응하여 록기어(120)는 그 외주면으로 상기 기어림(151)의 내치(154)에 치합하는 외치(122)가 형성됨을 알 수 있다.FIG. 8 is an enlarged view of the area A, wherein the gear 151 of the sector gear 150 has an inner tooth 154 formed on its inner circumferential surface, and the lock gear 120 is geared on its outer circumferential surface. It can be seen that the outer tooth 122 is engaged with the inner tooth 154 of 151.
여기서, 록기어(120)의 외치(122)는 기어림(151)의 내치(154)와 형성하게 되는 피치원(pitch circle, p)에서 상기 내치(154)와 치합하도록 형성되는 대신에, 상기 피치원(p)의 외측(즉, 상기 내치(154)의 이뿌리 측)인 C 영역에서 상기 내치(154)와 치합하도록 형성될 수 있다.Here, the outer tooth 122 of the lock gear 120 is formed to engage with the inner tooth 154 in a pitch circle (p) to be formed with the inner tooth 154 of the gear 151, the The inner tooth 154 may be formed to engage with the inner tooth 154 in a region C outside the pitch circle p (that is, the tooth root side of the inner tooth 154).
예를 들어, 상기 록기어(120)의 외치(122)의 이끝 부분에 이의 보강을 위한 라운드 단부(R)가 부가적으로 돌출 형성되도록 함으로써, 상기 라운드 단부(R)를 통해 기어림(151)의 내치(154)와 치합하도록 할 수 있다.For example, the gear 151 through the round end R is formed by additionally protruding the round end R for reinforcement at the end of the outer tooth 122 of the lock gear 120. Can be engaged with the internal tooth (154).
이에 의하면, 록기어(120)의 외치(122)의 강도를 보강함으로써 섹터기어(150)를 통한 고강도의 외력 전달 시 상기 외치(122)에 파손(failure)이 발생되는 현상을 개선할 수 있다.According to this, by reinforcing the strength of the outer tooth 122 of the lock gear 120 it is possible to improve the phenomenon that the failure (failure) occurs in the outer tooth 122 during the transmission of high-strength external force through the sector gear 150.
상기와 같은 라운드 단부(R)의 보강으로 록기어(120)의 외치(122)는 기어림(151)의 내치(154) 방향으로 더 깊게 연장되는 이끝 높이(L)를 갖는다.With the reinforcement of the round end R as described above, the outer tooth 122 of the lock gear 120 has a tooth tip height L extending deeper in the direction of the inner tooth 154 of the gear 151.
이상에서 설명된 차량 시트용 라운드 리클라이너(100)는 본 발명의 이해를 돕기 위한 일 실시예에 불과하므로 본 발명의 권리범위 내지 기술적 범위가 이에 한정되는 것으로 간주되어서는 안 된다.The round recliner 100 for a vehicle seat described above is just one embodiment for better understanding of the present invention, and thus the scope of the present invention should not be considered as being limited thereto.
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 (7)

  1. 외주연에 형성된 지지림, 상기 지지림의 내측에 인접한 기어림 수용부, 상기 기어림 수용부의 내측에 인접하여 원주 방향으로 일정 간격 배치되는 복수의 록기어 가이드 돌기, 상기 복수의 록기어 가이드 돌기의 내측으로 형성되는 캠 수용부를 갖는 홀더와; 상기 홀더에 수용되어 상기 복수의 록기어 가이드 돌기에 의해 슬라이딩 가이드되는 복수의 록기어와; 상기 캠 수용부에 수용되어 회전 시 상기 복수의 록기어를 가압 슬라이딩시키는 캠과; 상기 기어림 수용부에 수용되는 기어림, 상기 기어림의 내측으로 연장 형성되어 상기 복수의 록기어 및 상기 캠을 덮는 커버부를 가지며, 상기 슬라이딩되는 복수의 록기어에 의해 로킹 또는 언로킹되는 섹터기어를 포함하는 차량 시트용 라운드 리클라이너에 있어서,A support rim formed on an outer circumference, a gear receiving portion adjacent to the inner side of the support rim, a plurality of rock gear guide protrusions disposed at regular intervals in a circumferential direction adjacent to the inner side of the gear rim receiving portion, and the plurality of rock gear guide protrusions A holder having a cam receiving portion formed inwardly; A plurality of lock gears accommodated in the holder and slid by the plurality of lock gear guide protrusions; A cam accommodated in the cam accommodating portion and configured to pressurize and slide the plurality of lock gears during rotation; A sector gear which is geared to be accommodated in the gear receiving portion, extends inwardly of the gear and covers the plurality of lock gears and the cam to cover the cams, and which is locked or unlocked by the sliding plurality of lock gears; In the vehicle seat round recliner comprising:
    상기 홀더는 원주방향으로 이웃하는 복수의 록기어 가이드 돌기의 사이마다 함입 형성되는 복수의 스프링 수용부를 가지되 각 스프링 수용부의 이면은 상기 홀더의 외측면으로 돌출되는 엠보를 형성하며,The holder has a plurality of spring receiving portion is formed between each of the plurality of lock gear guide protrusions adjacent in the circumferential direction, the back surface of each spring receiving portion forms an emboss protruding to the outer surface of the holder,
    상기 복수의 스프링 수용부는 각각 내측에 위치하는 상기 캠 수용부와 연결되고, 각 스프링 수용부에는 스프링이 수용 및 지지되어 각 스프링의 일단부가 상기 캠을 회전하도록 탄성 가압하는 것을 특징으로 하는 차량 시트용 라운드 리클라이너.Each of the plurality of spring receiving portion is connected to the cam receiving portion located inside, each spring receiving portion for the vehicle seat, characterized in that the spring is accommodated and supported so that one end of each spring to elastically rotate the cam Round Recliner.
  2. 제1항에 있어서,The method of claim 1,
    상기 홀더의 캠 수용부는 상기 복수의 스프링 수용부와 동일한 층을 이루는 캠 가이드부가 연장 형성되고,The cam receiving portion of the holder extends the cam guide portion forming the same layer as the plurality of spring receiving portions,
    상기 캠은 상기 캠 수용부에 수용되어 상기 복수의 록기어와 상호 작용하는 몸체부와, 상기 몸체부로부터 연장 형성되어 상기 캠 가이드부에 수용 및 회전 가능하게 지지되고 원주 방향으로 일정 간격 배치되는 복수의 작용 돌기를 가지며,The cam is accommodated in the cam receiving portion and the body portion interacting with the plurality of lock gears, a plurality of extending from the body portion is received and rotatably supported in the cam guide portion and arranged in a circumferential direction at a predetermined interval Has the process of action,
    상기 각 스프링은 상기 일단부가 상기 복수의 작용 돌기 중 어느 하나를 회전방향으로 탄성 가압하는 것을 특징으로 하는 차량 시트용 라운드 리클라이너.Each said spring has said one end part elastically pressurizing any one of the said several actuating protrusion in a rotation direction, The round recliner for vehicle seat | seats.
  3. 제1항 또는 제2항에 있어서,The method according to claim 1 or 2,
    상기 섹터기어는 상기 기어림으로 이루어지는 제1 섹터기어층, 상기 커버부로 이루어지는 제2 섹터기어층 및 상기 커버부의 상면으로 돌출 형성되되 원주방향으로 일정 간격 배치되는 복수의 결합돌기로 이루어지는 제3 섹터기어층으로 이루어지며, 상기 섹터기어의 두께는 상기 제1 섹터기어층의 하단면으로부터 상기 제3 섹터기어층의 상단면까지의 길이에 해당하는 것을 특징으로 하는 차량 시트용 라운드 리클라이너.The sector gear may include a first sector gear layer formed of the gear, a second sector gear layer formed of the cover part, and a third sector gear formed of a plurality of coupling protrusions protruding from an upper surface of the cover part and disposed at regular intervals in the circumferential direction. And a thickness of the sector gear corresponds to a length from a lower surface of the first sector gear layer to an upper surface of the third sector gear layer.
  4. 제1항에 있어서,The method of claim 1,
    상기 복수의 록기어 가이드 돌기의 돌출된 두께는 이에 의해 슬라이딩 가이드되는 상기 복수의 록기어의 두께보다 작은 것을 특징으로 하는 차량 시트용 라운드 리클라이너.The protruding thickness of the plurality of lock gear guide protrusions is smaller than the thickness of the plurality of lock gears that are slid guided thereby.
  5. 제1항에 있어서,The method of claim 1,
    상기 캠은 외주면에 상기 복수의 록기어를 가압 슬라이딩시키기 위한 복수의 작동돌기가 형성되고,The cam is provided with a plurality of operating projections for pressing and sliding the plurality of lock gear on the outer peripheral surface,
    상기 록기어는 해당 작동돌기에 의해 가이드되어 로킹 위치와 언로킹 위치 사이에서 왕복 슬라이드되며, 상기 로킹 위치 시 상기 작동돌기를 접촉 가압하기 위한 가압돌기가 추가적으로 돌출 형성되는 것을 특징으로 하는 차량 시트용 라운드 리클라이너.The lock gear is guided by the corresponding operation protrusion and reciprocally slides between the locking position and the unlocking position, wherein the locking protrusion for contacting and pressurizing the operating protrusion at the locking position is further protrudingly formed. Recliner.
  6. 제1항에 있어서,The method of claim 1,
    상기 섹터기어의 기어림은 내주면으로 내치가 형성되고,The gear of the sector gear is formed in the inner peripheral surface,
    상기 록기어는 로킹 위치 시 상기 기어림의 내치에 치합하는 외치가 외주면에 형성되며,The lock gear is formed on the outer circumferential surface of the outer gear that meshes with the inner tooth of the gear at the locking position,
    상기 록기어의 외치는 상기 기어림의 내치와 형성하게 되는 피치원의 외측에서 상기 내치와 치합하도록 형성되는 것을 특징으로 하는 차량 시트용 라운드 리클라이너.The outer gear of the lock gear is formed so as to engage with the inner tooth on the outside of the pitch circle formed with the inner tooth of the gear rim.
  7. 제6항에 있어서,The method of claim 6,
    상기 록기어의 외치는 이끝 부분의 보강을 위한 라운드 단부가 부가적으로 돌출 형성되어, 상기 라운드 단부를 통해 상기 내치와 치합하는 것을 특징으로 하는 차량 시트용 라운드 리클라이너.And the outer edge of the lock gear additionally protrudes from the round end portion for reinforcement of the end portion, and engages with the inner tooth through the round end portion.
PCT/KR2010/002295 2009-05-22 2010-04-14 Round recliner for a vehicle seat WO2010134698A2 (en)

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KR1020090044756A KR20100125840A (en) 2009-05-22 2009-05-22 Round recliner for vehicle seat
KR10-2009-0044756 2009-05-22

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015194699A1 (en) * 2014-06-20 2015-12-23 주식회사 오스템 Recliner for vehicle seat

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000342369A (en) * 1999-06-08 2000-12-12 Aisin Seiki Co Ltd Seat back angle adjustment system
JP2002186535A (en) * 2000-12-21 2002-07-02 Araco Corp Reclining device
JP2004016651A (en) * 2002-06-19 2004-01-22 Aisin Seiki Co Ltd Seat reclining device
KR20070111566A (en) * 2006-05-18 2007-11-22 다이모스(주) Reclining device of seat for vehicle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000342369A (en) * 1999-06-08 2000-12-12 Aisin Seiki Co Ltd Seat back angle adjustment system
JP2002186535A (en) * 2000-12-21 2002-07-02 Araco Corp Reclining device
JP2004016651A (en) * 2002-06-19 2004-01-22 Aisin Seiki Co Ltd Seat reclining device
KR20070111566A (en) * 2006-05-18 2007-11-22 다이모스(주) Reclining device of seat for vehicle

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