Vehicle, wheel suspension device and method of assembling vehicle
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B60G-003/18
B62D-021/12
출원번호
US-0127523
(2005-05-12)
등록번호
US-7461851
(2008-12-09)
발명자
/ 주소
Yamamura,Takashi
Shimizu,Katsuhisa
Seto,Minoru
Ooishi,Tomoaki
Smith,Craig
출원인 / 주소
Yamaha Hatsudoki Kabushiki Kaisha
Yamaha Motor Manufacturing Corporation
대리인 / 주소
Keating & Bennett, LLP
인용정보
피인용 횟수 :
10인용 특허 :
12
초록▼
A vehicle includes a wheel suspension device on a right side and a wheel suspension device on a left side, with the right and left side wheel suspension devices being connected to each other through a rear frame mounted on a body frame. The right and left side wheel suspension devices include a lowe
A vehicle includes a wheel suspension device on a right side and a wheel suspension device on a left side, with the right and left side wheel suspension devices being connected to each other through a rear frame mounted on a body frame. The right and left side wheel suspension devices include a lower arm supported at an inner end of the rear frame so as to extend outward and so as to be pivotally movable in a vertical direction. The right and left side wheel suspension devices also include an upper arm connected to the outer end of the lower arm through a wheel-supporting knuckle and so as to extend outward from the knuckle. The wheel suspension devices are provided with a rear cushion unit connected at one end to the swinging side end of one of the lower and upper arm members. At least one of the inner end of the upper arm and the other end of the rear cushion unit is supported on the rear frame so as to be pivotally movable.
대표청구항▼
What is claimed is: 1. A vehicle comprising: a body frame including a main body frame and a separate sub-frame connected to the main body frame; wheel suspension devices supporting the body frame, the wheel suspension devices being provided on left and right sides of the vehicle, the wheel suspensi
What is claimed is: 1. A vehicle comprising: a body frame including a main body frame and a separate sub-frame connected to the main body frame; wheel suspension devices supporting the body frame, the wheel suspension devices being provided on left and right sides of the vehicle, the wheel suspension devices including: the sub-frame; left and right lower arms each having a first end supported on the sub-frame for pivotal movement in a vertical direction and a second end extending outward from a side of the sub-frame; left and right knuckles each connected to the second end of the left and right lower arms, respectively, for pivotal movement in the vertical direction and arranged to support a wheel for rotation; and left and right upper arms each having a first end connected for pivotal movement in the vertical direction to the left and right knuckles, respectively, at a position above a connection portion connecting the left and right knuckles and the left and right lower arms, respectively, and extending inward from the first end; the body frame including the left and right elongated cushion units each having a first longitudinal end pivotally connected for pivotal movement to the left and right lower arms at a location inward from the second ends of the left and right lower arms; wherein second ends of said left and right upper arms and second longitudinal ends of said left and right cushion units are pivotally connected to said body frame and at least one of said second ends of said left and right upper arms and said second longitudinal ends of said left and right cushion units is pivotally connected to said sub-frame; and the sub-frame includes at least one connection member connecting the sub-frame to the main body frame and arranged to allow the sub-frame to pivot about a horizontal axis with respect to the main body frame. 2. The vehicle according to claim 1, wherein said sub-frame is connected detachably to said main body frame. 3. The vehicle according to claim 1, wherein the at least one connection member includes a shock-absorbing member made of rubber. 4. The vehicle according to claim 1, wherein the second ends of said left and right upper arms and said left and right cushion units are each connected to said sub-frame. 5. The vehicle according to claim 1, wherein if said at least one of said second ends of said left and right upper arms and said left and right cushion units is not connected to the sub-frame, the other of said at least one of said second ends of said left and right upper arms and said left and right cushion units is connected to the main body frame, in at least one of said left and right upper arms and said left and right cushion units, the second ends of which are connected to the body frame, a vibration-preventing member made of rubber is provided in at least one of connecting portions at the first end and at the second end, and a vibration-preventing member made of rubber is provided in the connecting portion of the sub-frame that is connected to the main body frame. 6. The vehicle according to claim 1, further comprising a power distribution device including an input shaft connected to an engine, a pair of left and right output shafts each connected to respective left and right wheels, a gear device arranged to transmit rotation of said input shaft to the output shafts, and a casing member arranged to support said gear device, input shaft and output shafts for rotation, the power distribution device being provided on said sub-frame. 7. The vehicle according to claim 1, wherein said knuckle supports a rear wheel for rotation. 8. The vehicle according to claim 1, wherein said knuckle supports a front wheel rotatably and is connected to said second ends of the left and right upper and lower arms for pivotal movement in the vertical direction and in the lateral direction, and a steering device is connected to said knuckle. 9. The vehicle according to claim 8, wherein a casing member supporting a rotational shaft for rotation is mounted to said sub-frame, said rotational shaft is arranged to receive a steering force at a top thereof and having at a bottom thereof a pitman arm for turning said knuckle through a tie rod to the left and right mounted thereon. 10. A wheel suspension device provided on a main body frame constituting part of a body of a vehicle and supporting the body of the vehicle, said wheel suspension device comprising: a sub-frame connectable to said main body frame; left and right lower arms each having a first end supported on the sub-frame for pivotal movement in a vertical direction and a second end extending outward from a side of the sub-frame; left and right knuckles each connected to the second end of the left and right lower arms for pivotal movement in the vertical direction and arranged to support a wheel for rotation; left and right upper arms each having a first end connectable for pivotal movement in the vertical direction to the left and right knuckles, respectively, at a position above a connecting portion of the knuckle; and elongated left and right cushion units having first longitudinal ends pivotally connectable to a body frame made up of said sub-frame and said main body frame; wherein the left and right upper arms are connected at a second end to said sub-frame for pivotal movement in the vertical direction, and the left and right cushion units are pivotally connected at second longitudinal ends to the left and right lower arms at a location inward from the second ends of the left and right lower; and the sub-frame includes at least one connection member connecting the sub-frame to the main body frame and arranged to allow the sub-frame to pivot about a horizontal axis with respect to the main body frame. 11. The wheel suspension device according to claim 10, wherein a power distribution device including an input shaft connected to an engine for supplying power to said vehicle, a pair of left and right output shafts each connected to the respective left and right wheels, a gear device for transmitting the rotation of said input shaft to the output shafts, and a casing member for supporting said gear device, input shaft and output shafts for rotation, is provided on said sub-frame. 12. The wheel suspension device according to claim 10, wherein said knuckle supports the rear wheel rotatably. 13. A method of assembling a vehicle comprising the steps of: connecting inner ends of left and right lower arms to a sub-frame; connecting lower ends of left and right knuckles to outer ends of the left and right lower arms, respectively, and connecting upper ends of the left and right knuckles to outer ends of left and right upper arms; pivotally connecting first longitudinal ends of elongated left and right cushion units to said left and right lower arms at a location inward from the outer ends of said left and right lower arms, respectively, and pivotally connecting at least either one of inner ends of said upper arms and upper longitudinal ends of said cushion units to said sub-frame, to define a wheel suspension unit; thereafter assembling the sub-frame of the wheel suspension unit to a body frame such that the sub-frame is arranged to pivot in a vertical direction with respect to the body frame; and then if the inner ends of said upper arms or the upper ends of said cushion units are not connected to the sub-frame, the inner ends or the upper ends, which are not connected to the sub-frame, are connected to the body frame.
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이 특허에 인용된 특허 (12)
Kalhok, David; Rondeau, Pierre; Portelance, Martin, All terrain vehicle.
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