Emergency stop apparatus and method
AssigneeAp Systems Inc.
InventorsKwang Soo Kim, Jong Gwon Choi, Hyun Sik Yun, Joo Hyeok Baek
Life of this patent
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Abstract
Provided are an emergency stop apparatus including a switch unit installed in a work space, electrically connected to a facility, and operable by pulling and a wire which is disposed in the work space so that tension is applied and of which at least one side is detachably mounted on the switch unit and an emergency stop method for quickly stopping the facility at a desired position within the work space in a manner of pulling or pushing the wire.
Claims11
An emergency stop apparatus comprising:
- a switch unit installed in a work space and electrically connected to a facility;
- a wire which is disposed in the work space so that tension is applied and of which at least one side is mounted on the switch unit;
- and
- a connection unit mounted to be connected between the wire and the switch unit and adjustable in length in a mounted direction,
- wherein the switch unit comprises:
- a switch body electrically connected to the facility;
- a stop switch stretchably mounted on the switch body to turn on the switch body by pulling the wire;
- a recovery switch stretchably mounted on the switch body to turn off the switch body by pressing,
- an operation display part mounted on the switch body to display a pulled state of the stop switch;
- and
- a wire hook disposed on end of the stop switch,
- wherein the switch body maintains a turn-on state even when the stop switch is restored to an original state by releasing the stop switch in the turn-on state, and the switch body maintains a turn-off state even when the recovery switch is restored to an original state by removing a pushing force from the recovery switch while in the turn-off state,
- the connection unit comprises a hook body caught by the wire hook and a wire coupling tool that couples an end of the wire, and
- the wire coupling tool comprises a holding part to provide a passage through which the wire passes, and a wire support mounted on the holding part and having a wire support hole.
An emergency stop method for stopping a facility installed in a work space, the emergency stop method comprising:
- providing a switch body electrically connected to the facility and a wire which is disposed in the work space so that tension k applied and of which one end is connected to the switch body;
- operating the facility;
- and
- operating the switch body by using the wire to stop the facility;
- wherein a stop switch k mounted to one side of the switch body, a recovery switch is mounted to the other side of the switch body,
- a wire hook is provided to an end of the stop switch, an operation display part for displaying a pulled state of the stop switch is mounted to the switch body,
- an adjustable connection unit comprising a holding part on one end and a hook body on an opposite end provides for coupling one end of the wire to the holding part and mounting of the connection unit to the wire hook whereby
- tension of the wire is adjusted by adjusting a length of the connection unit, and then a zero point of the operation display part is adjusted,
- wherein stopping the facility comprises:
- pulling the stop switch by pulling or pushing the wire;
- turning-on the switch body when the stop switch is pulled by a force of a reference force or more;
- and
- maintaining a turn-on state of the switch body after releasing the stop switch,
- wherein, after stopping the facility, the emergency stop method further comprises:
- turning-off the switch body by pushing the recovery switch;
- and
- maintaining a turn-off state of the switch body after restoring the recovery switch to an original state.
Dependencies are inferred from the claim text.