초록 ▼

A safety device for a self-propelled machine with a steering rod guided by an operator\s handle includes a safety handle positioned proximately below the operator\s handle in parallel to at least a portion of the operator\s handle for grasping by the operator. The safety handle has first and second

A safety device for a self-propelled machine with a steering rod guided by an operator\s handle includes a safety handle positioned proximately below the operator\s handle in parallel to at least a portion of the operator\s handle for grasping by the operator. The safety handle has first and second arms projecting vertically downward. A shaft is rotatably mounted in the steering rod below the safety handle, and a sleeve is journalled on the shaft. The first and second arms of the safety handle are rigidly attached to opposite ends of the shaft. An operating disc for controlling the motion of the machine is rotatably mounted in the steering rod. A spring normally biases the operating disc to maintain the machine in a stationary position. A locking arm is rigidly attached to the sleeve and engages teeth in the operating disc for securing the operating disc in a fixed position whereby the motion of the machine is constant. The locking arm distributes the mass of the elements pivotal with the safety handle whereby the torque produced by gravitational forces acting upon the safety handle is practically zero when the safety handle is positioned in contact with the operator\s handle.

대표청구항 ▼

A safety device for a self-propelled machine with a steering rod guided by an operator\s handle comprising: a safety handle positioned proximately below said operator\s handle and parallel to at least a portion of said operator\s handle for grasping by the operator, said safety handle having first a

A safety device for a self-propelled machine with a steering rod guided by an operator\s handle comprising: a safety handle positioned proximately below said operator\s handle and parallel to at least a portion of said operator\s handle for grasping by the operator, said safety handle having first and second arms projecting downwardly from said safety handle; a member rotatably mounted in said steering rod below said safety handle, said first and second arms of said safety handle rigidly attached to opposite ends of said shaft; an operating disc with teeth for controlling the motion of said machine, and rotatably mounted in said steering rod; means normally biasing said operating disc to maintain said machine in a stationary position; a locking arm rigidly connected with said member and engaging said teeth in said operating disc for securing said operating disc in a fixed position whereby the motion of said machine is constant, said locking arm being connected with said member in a position, relative to the safety handle and a pivotal axis of the safety handle and locking arm, that distributes the mass of the elements pivotal with said safety handle such that the torque produced by gravitational forces acting upon said safety handle is practically zero when said safety handle is pivoted into its position of closest proximity with said operator\s handle.