Electro-hydraulic actuator of a motorcycle stand
원문보기
IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0136693
(2002-04-30)
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우선권정보 |
EP-0110636 (2001-04-30) |
발명자
/ 주소 |
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대리인 / 주소 |
The Bilicki Law Firm P.C.
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인용정보 |
피인용 횟수 :
1 인용 특허 :
4 |
초록
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An actuating device (1) for the rotation of a stand (4) of a vehicle, such as a motorcycle or scooter, between a standing position and a rest position, and allowing also the reverse maneuver in order to rotate the stand from the position of vehicle on the stand up to that in which the vehicle lowers
An actuating device (1) for the rotation of a stand (4) of a vehicle, such as a motorcycle or scooter, between a standing position and a rest position, and allowing also the reverse maneuver in order to rotate the stand from the position of vehicle on the stand up to that in which the vehicle lowers spontaneously. At least one hydraulic actuator (1) is provided that operates, between a first and a second position, an actuating member (7) or piston rod that engages with the stand (4) up to bringing it respectively from the rest position to the standing position. A flow control hydraulic circuit delivers pressurized liquid to the actuator (1) for moving the actuating member (7) from the first to the second position, and allows the back stroke of the actuating member (7) to the first position when the flow of the liquid ceases, whereby the stand (4) can be brought back to said rest position independently from the actuating member (7). When the stand is in the standing position and the actuating member (7) has turned back to the first position, means are provided operated by the actuator (1) for starting the return rotation of the stand (4) from the standing position to the rest position up to a point wherein it is not necessary to bear the weight of the vehicle for carrying out the rotation. The actuator is particularly suitable for handling a motorcycle stand, with the advantages that in case of lack of pressure in the hydraulic circuit the stand is free in its movement towards the rest position in which it remains as if the device does not exist. Furthermore, the actuator makes easier the lowering step of the vehicle from the stand, even if the lowering from the stand is possible also in traditional way.
대표청구항
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1. An actuator device for the rotation of a vehicle stand, said stand (4) being pivotally connected (4b) to said vehicle frame (2) between a first resting position and a second standing position, comprising at least one hydraulic actuator (1) operating an actuating member (7) between a first and a s
1. An actuator device for the rotation of a vehicle stand, said stand (4) being pivotally connected (4b) to said vehicle frame (2) between a first resting position and a second standing position, comprising at least one hydraulic actuator (1) operating an actuating member (7) between a first and a second position, said actuating member (7) when passing from said first to said second position engaging with said stand (4) up to bringing it respectively from the rest position to the standing position, a flow control hydraulic circuit being provided that delivers pressurized liquid to said hydraulic actuator (1) for moving said actuating member (7) from said first to said second position and allows the back stroke of said actuating member (7) to said first position when the flow of said liquid ceases, whereby said stand (4) can be brought back to said rest position independently from said actuating member (7), wherein, when said stand (4) is in said standing position and said actuating member (7) has turned back to said first position, means are provided by said actuator (1) for starting the return rotation of said stand (4) from said standing position to said rest position up to a point wherein it is not necessary bear the weight of the vehicle for carrying out the rotation. 2. An actuator device according to claim 1, wherein said actuator is a hydraulic cylinder (1) comprising a piston (7a) and said actuating member is a piston rod (7) sliding in said stand and connected to said piston, said piston rod moving between an extended position corresponding to said first position to a retracted position, whereby said stand (4) is brought to said standing position by pulling through said piston rod (7a) by an abutting end of the latter (7b). 3. An actuator device according to claim 2, wherein said means for starting the return rotation of said stand (4) comprise a pushing element (29) in said cylinder having a tubular portion (33) sliding coaxially on said piston rod (7) and having an end external to said cylinder suitable for urging a lever (5) integral to said stand, said piston (7a) pushing said stand independently from said piston rod by pressure against said pushing element (29). 4. An actuator device according to claim 3, wherein said pushing element has a head (29) suitable for urging said piston (7a) and resilient means set between said head and the bottom (31) of said cylinder (1) that oppose (29) the movement of said tubular portion (33) towards said stand. 5. Am actuator device according to claim 1, wherein said actuator is a hydraulic cylinder (1) comprising a piston (7a) and said actuating member is a piston rod (7) sliding in said stand and connected to said piston (7a), said piston rod (7) moving between an extended position corresponding to said second position to a retracted position, whereby said stand is brought to said standing position pushed by said piston rod through a first abutment that pushes said stand. 6. An actuator device according to claim 5, wherein said means for starting the return rotation of said stand (4) comprise a second abutment provided at the end of said piston rod (7) distanced from said first abutment, whereby said piston rod pushes by said first abutment causing the stand to move from said rest position to the standing position and pulls by said second abutment causing the back stroke of said stand towards said rest position, the distance between said first and second abutment allowing the stand to complete the movement of back stroke to said rest position independently from said piston. 7. An actuator device according to claim 1, wherein said flow control hydraulic circuit comprises a flow control valve (16) connected with a first port (1a) and a second port (1b) of said hydraulic actuator (1), said means for starting the back rotation of said stand comprising an electro-distributor (32) associated to said flow control hydraulic circuit.
이 특허에 인용된 특허 (4)
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Gratza Peter (Munich DEX), Installation for lowering a kickstand arranged on a motorcycle.
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Gigli Mario (No. 429 ; Via Flaminia Rome IT), Motorcycle auxiliary support system.
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Yaple Winfred E. (6428 Pepperdine ; NE. Albuquerque NM 87111), Powered motorcycle lift/stand.
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Willman David M. (1234 Margine Ave. Daytona Beach FL 32114), Retractable motorcycle stop-support wheels.
이 특허를 인용한 특허 (1)
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Ridley,Clay K., Automatic kick stand for two-wheeled vehicle.
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