公开(公告)号：US5209714A

公开(公告)日：1993-05-11

申请号：US780117

申请日：1991-10-21

申请人： Robert L. Sainte ,  Steven E. Sarns ,  Steven R. Frank

发明人： Robert L. Sainte ,  Steven E. Sarns ,  Steven R. Frank

IPC分类号： A63B21/008

CPC分类号： A63B21/0083 ,  A63B21/00069 ,  A63B21/00072 ,  A63B21/4047 ,  A63B2208/12

摘要： An automatic force generating and control system that automatically sets exercise forces in accordance with user programmed criteria and is capable of providing pressurized flow to both ends of the arm hydraulics and leg exerciser hydraulics. Anticavitation is provided during idling, pressurized flow and when the user is successfully overcoming the pressurized flow. In the preferred embodiment, pressure is regulated by two proportional pressure relief valves which set the pilot pressure of the control valves and switching elements which direct the pressurized flow to the hydraulics. In an alternate embodiment pressure and flow are regulated by a bi-directional pump through the current and voltage sent to the pump by the controls. In a third embodiment the pressure is regulated by a proportional pressure relief valve which is connected in parallel to the ends of either the arm cylinders and to a uni-directional pump. In the alternate embodiments anticavitation is provided by a double pilot operated check valve.

摘要翻译： 自动力产生和控制系统，其根据用户编程的标准自动设定运动力，并且能够向臂液压和腿训练液压两端提供加压流。 在空转，加压流动和用户成功克服加压流量时提供防腐。 在优选实施例中，压力由两个比例压力释放阀调节，所述比例压力释放阀将控制阀的先导压力和将加压流引导到液压装置的开关元件。 在替代实施例中，压力和流量由双向泵通过由控制器发送到泵的电流和电压来调节。 在第三实施例中，压力由比例压力释放阀调节，该比例压力释放阀并联连接到臂缸的端部和单向泵。 在替代实施例中，防空气由双先导操作的止回阀提供。

公开(公告)号：US5064193A

公开(公告)日：1991-11-12

申请号：US439932

申请日：1989-11-13

申请人： Robert L. Sainte ,  Steven E. Sarns ,  Steven R. Frank

发明人： Robert L. Sainte ,  Steven E. Sarns ,  Steven R. Frank

IPC分类号： A63B21/008

CPC分类号： A63B21/0083 ,  A63B21/00069 ,  A63B21/00072 ,  A63B21/4047 ,  A63B2208/12

摘要： An automatic force generating and control system that automatically sets exercise forces in accordance with user programmed criteria and is capable of providing pressurized flow to both ends of the arm hydraulics and leg exerciser hydraulics. Anticavitation is provided during idling, pressurized flow and when the user is successfully overcoming the pressurized flow. In the preferred embodiment, pressure is regulated by two proportional pressure relief valves which set the pilot pressure of the control valves and switching elements which direct the pressurized flow to the hydraulics. In an alternate embodiment pressure and flow are regulated by a bi-directional pump through the current and voltage sent to the pump by the controls. In a third embodiment the pressure is regulated by a proportional pressure relief valve which is connected in parallel to the ends of either the arm cylinders and to a uni-directional pump. In the alternate embodiments anticavitation is provided by a double pilot operated check valve.

摘要翻译： 自动力产生和控制系统，其根据用户编程的标准自动设定运动力，并且能够向臂液压和腿训练液压两端提供加压流。 在空转，加压流动和用户成功克服加压流量时提供防腐。 在优选实施例中，压力由两个比例压力释放阀调节，所述比例压力释放阀将控制阀的先导压力和将加压流引导到液压装置的开关元件。 在替代实施例中，压力和流量由双向泵通过由控制器发送到泵的电流和电压来调节。 在第三实施例中，压力由比例压力释放阀调节，该比例压力释放阀并联连接到臂缸的端部和单向泵。 在替代实施例中，防空气由双先导操作的止回阀提供。