초록 ▼

A device for preventing the unintentional restarting of motors or machines is proposed, it being possible to control the supply of energy to the motor or to the machine by means of a control valve with a mechanically adjustable control element and it being possible to connect the control valve non-d

A device for preventing the unintentional restarting of motors or machines is proposed, it being possible to control the supply of energy to the motor or to the machine by means of a control valve with a mechanically adjustable control element and it being possible to connect the control valve non-detachably to the motor or to the machine, the energy for the motor being generated by means of compressed air, and in that a pneumatic piston, to which the primary air pressure prevailing upstream of the motor and upstream of the control valve can be applied, being arranged as a restarting inhibitor between the control valve and the motor, and in that, in order to apply the primary air pressure, a connecting line being arranged between the motor and the piston.

대표청구항 ▼

1. In combination, a fluid motor and safety means for preventing unintentional restarting of the fluid motor in the event of interruption of the feed of fluid under pressure to the fluid motor comprising: a fluid motor; a source of fluid under pressure; conduit means for feeding fluid under pre

1. In combination, a fluid motor and safety means for preventing unintentional restarting of the fluid motor in the event of interruption of the feed of fluid under pressure to the fluid motor comprising: a fluid motor; a source of fluid under pressure; conduit means for feeding fluid under pressure to the fluid motor; valve means in the conduit means movable between a first position where the flow of fluid under pressure to the fluid motor is blocked and a second position where fluid under pressure is communicated to the fluid motor; actuating means for moving the valve means from the first position to the second position; and safety means for receiving fluid under pressure for holding the safety means in a first position when said actuating means moves the valve means to the second position, the safety means includes means for biasing the safety means to a second position when the flow of fluid under pressure to the safety means ceases thereby allowing the valve means to move to the first position wherein flow of fluid to the motor is blocked. 2. The combination according to claim 1, wherein the valve means is as a throttle valve which is biased by a spring and the fluid under pressure to the first position. 3. The combination according to claim 2, wherein the actuating means includes a release latch for moving the safety means to the first position wherein the safety means biases the throttle valve to the second position. 4. The combination according to claim 3, wherein the safety means includes a piston with a piston rod wherein the piston rod is connected to the release latch. 5. The combination according to claim 2, wherein the actuating means includes a manually activated and pneumatically acting release button which releases fluid under pressure to the safety means wherein the safety means is moved to the first position for biasing the throttle valve to the second position. 6. The combination according to claim 5, wherein a non-return valve is arranged between the pneumatic release button and the fluid motor in such a way that the non-return valve is closed with the releasing of the release button, and in that the non-return valve is opened again when the fluid under pressure is feed to the fluid motor. 7. The combination according to claim 6, further including an emergency shut-off device and a 3/2-way valve associated with the safety means for removing fluid therefrom.