Safety brake system for an engine
    2.
    发明授权
    Safety brake system for an engine 失效
    发动机的安全制动系统

    公开(公告)号:US4979596A

    公开(公告)日:1990-12-25

    申请号:US371724

    申请日:1989-06-27

    申请人: Lee E. Roller

    发明人: Lee E. Roller

    IPC分类号: A01D34/68

    CPC分类号: A01D34/6812 A01D2101/00

    摘要: A safety brake system for a walk behind lawn mower in which provision is made for alternative orientations of the engine relative to the mower deck and operator's position while utilizing the same components for the safety brake system. Only the interconnection of the components is changed for the alternative engine orientations. In one configuration, a control lever connected intermediate an operator actuated bowden cable and the brake disengagement device is pivoted between the attachment points of the control lever to the bowden cable and the disengagement device such that a reverseal of direction of pull is effected. In the other configuration, the point of attachment of the control lever to the disengagement device is on the same side of the pivot point of attachment to the bowden cable such that no reversal of direction of pull occurs. The control lever is manufactured with both attachment points so that a bowden cable approaching the engine from the rear of the mower can by attached to one or the other to actuate the brake disengagement device regardless of the selected orientation of the engine.

    Compliance brake for an internal combustion engine powered implement
    3.
    发明授权
    Compliance brake for an internal combustion engine powered implement 失效
    内燃机动力工具的合规制动

    公开(公告)号:US4889213A

    公开(公告)日:1989-12-26

    申请号:US237293

    申请日:1988-08-26

    申请人: Lee E. Roller

    发明人: Lee E. Roller

    摘要: A safety device for an internal combustion engine powered implement and for disabling the operation of the internal combustion engine by means of a brake. The safety device includes a braking lever and a control lever which are both mounted on a single pivot member. Two springs are provided, the first of which normally urges the braking lever into contact with the flywheel of the internal combustion engine to prevent rotation thereof. The second spring biases the control lever into a rest position wherein the deadman control lever assumes its normal non-operated position and allows adjustment of control effort. The braking lever and control lever are mounted on the pivoting member by means of bushings to permit independent pivoting movement of the levers when the deadman lever is operated. The control lever contacts the braking lever by means of an abutment surface thereby rotating the braking lever out of contact with the flywheel and permitting the engine to operate. The braking lever also includes a protrusion for contacting an ignition circuit switch whereby the ignition circuit of the engine is also disabled in the rest position of the deadman control lever.