Control device for self-propelled towed vehicle专利检索-曳力装置钓鱼与渔业专利检索查询-专利查询网

Control device for self-propelled towed vehicle

阅读：8发布：2022-10-13

专利汇可以提供Control device for self-propelled towed vehicle专利检索，专利查询，专利分析的服务。并且A device for controlling the operation of a self-propelled towed vehicle has an extensible drawbar with two telescoping parts capable of relative movement therebetween. A piston of a master hydraulic cylinder is fixedly attached to one of the drawbar parts and is positionable in accordance with the relative movement thereof. Each towed vehicle has an associated master cylinder which effects the control of the movement of one or more pistons of slave hydraulic cylinders, which in turn control the hydrostatic transmission and source of motive power with its respective towed vehicle. Hydraulic linkages are provided with respect to each drawbar master cylinder and the slave cylinders to insure increased motive power as the load in towed vehicle increases. In this regard, the hydrostatic transmission is controlled and the source of motive power regulated for the towed vehicle when the towed vehicle overtakes the towing device due to broken control springs, quick stops, accidental uncouplings, or the like. The hydraulic system controlling the above functions further includes means to compensate for fluid expansion and contraction from temperature variations or system leaks.，下面是Control device for self-propelled towed vehicle专利的具体信息内容。

权利要求

1. A speed control device for a towed self-propelled vehicle wherein the towed vehicle has a power means for propelling same and control linkages associated therewith which are positionable to turn said power means on or off, said vehicle operable to be towed by a towing prime mover, said device comprising, an extensible drawbar interconnecting said prime mover and said vehicle, a master hydraulic cylinder having a piston operatively associated with said drawbar, said piston movable with respect to said cylinder in accordance with the relative location of said prime mover and said vehicle, a slave cylinder means hydraulically connected with said master cylinder and further operatively connected with said control linkages, said slave cylinder means operable in response to said master cylinder piston to control the positioning of said control linkages thereby controlling the condition of said power means, and hydraulic means including a hydraulic fluid pump for insuring that said power means is turned off when said vehicle inadvertently overtakes said prime mover, a variable pressure regulator, and means for hydraulically interconnecting said pump and said variable pressure regulator with said master cylinder, said slave cylinder means being actuated in accordance with a pressure condition within said variable pressure regulator to operate said control linkages.

2. A speed control device for a self-propelled vehicle wherein said towed vehicle has a power means for propelling same and control linkages associated therewith which are positionable to turn said power means on or off, said towed vehicle including a transmission means with associated control linkages for transmitting the motive power developed by said power means to operatively proPel said towed vehicle, said vehicle operable to be towed by a towing prime mover or another self-propelled towed vehicle, said device comprising an extensible drawbar interconnecting said prime mover and said vehicle, a master hydraulic cylinder having a piston operatively associated with said drawbar, said piston movable with respect to said cylinder in accordance with the relative location of said prime mover and said vehicle, a slave cylinder means, and at least one variable pressure regulator hydraulically connected between said slave cylinder means and said master cylinder, said slave cylinder means further operatively connected with said control linkages of said power means and said transmission means, said slave cylinder means operable in response to said master cylinder piston and said variable pressure regulator to control the positioning of said control linkages thereby controlling the condition of said power means and said transmission means, said positioning of said linkages being variable in accordance with the variable and controlled pressure at least partly established by said variable pressure regulator

3. The invention as in claim 2 wherein said device includes a fluid pump interconnected with said variable pressure regulator, means for hydraulically interconnecting said pump and said variable pressure regulator with said master cylinder, said slave cylinder means being actuated in accordance with a pressure condition within said variable pressure regulator.

4. The invention as in claim 2 including means for connecting a plurality of variable pressure regulators between said slave cylinder means and said master cylinder.

5. A speed control device for a towed self-propelled vehicle wherein the towed vehicle has a power means for propelling same and control linkages associated therewith which are positionable to turn said power means on or off, said vehicle operable to be towed by a towing prime mover, said device comprising, an extensible drawbar interconnecting said prime mover and said vehicle, a master hydraulic cylinder having a piston operatively associated with said drawbar, said piston movable with respect to said cylinder in accordance with the relative location of said prime mover and said vehicle, a slave cylinder means hydraulically connected with said master cylinder and further operatively connected with said control linkages, said slave cylinder means operable in response to said master cylinder piston to control the positioning of said control linkages thereby controlling the condition of said power means, hydraulic means, including a hydraulic fluid pump, for insuring that said power means is turned off when said vehicle inadvertently overtakes said prime mover, wherein said insuring means includes means for hydraulically interconnecting said master cylinder with said slave cylinder means, said last-mentioned hydraulic interconnecting means including a hydraulic fluid reservoir, at least one variable pressure regulator, means interconnecting said master cylinder with said variable pressure regulator, means interconnecting said pump with said variable pressure regulator, means interconnecting said variable pressure regulator with said slave cylinder means so that said control linkages turn off said power means when said vehicle inadvertently overtakes said prime mover.

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Control device for self-propelled towed vehicle

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