发明名称 Foot-operated hydraulic power source for emergency hydraulic tools
摘要 A readily portable hydraulic power source for supplying hydraulic fluid pressure to emergency hydraulic tools is foot-operated such that the operator's hands are left free to use the hydraulic tools and both the tools and power source may be operated by a single person. The power source includes a generally planar base member, a hydraulic pump fixedly mounted at one end of the base member, a foot-engaging planar member in generally overlying relation to the base member, a hinge connecting ends of the base member and the planar member for movement of the planar member relative to the base, and a resilient spring between the base and planar members to urge the members pivotally apart upon release of pressure from the operator's foot. The operator's foot is retained by straps and a heel retaining portion attached to the planar member, with the heel portion having an arm operatively connected to a hydraulic piston of the pump. Fluid conduits are provided from the hydraulic pump for connection to an emergency tool and from a hydraulic fluid reservoir, which is strapable about the operator's torso, to supply fluid to the hydraulic pump.
申请公布号 US4197706(A) 申请公布日期 1980.04.15
申请号 US19780901430 申请日期 1978.05.01
申请人 BLAKE, DAVID R 发明人 BLAKE, DAVID R
分类号 B25B28/00;F04B9/14;(IPC1-7):F16D31/02 主分类号 B25B28/00
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