JPS6234946Y2 - - Google Patents

Description

[Detailed explanation of the invention] This project is designed to operate a crane that is installed above a room where humans are absolutely prohibited to enter, such as a radioactive waste storage room, in case of an emergency. This relates to an escape device for escaping from the unmanned room in the event of a stoppage.

Conventionally, in order to escape this type of crane from an indoor location where people cannot enter, an endless chain is run parallel to the crane rail from beginning to end, and in case of an emergency, the crane is connected to the endless chain and the chain is moved. Some systems allow the chain to escape as it rotates, but since the chain rotates all the time, it is more abrasive than normal and cannot be fully effective in an emergency. However, it was difficult to develop a suitable method for this purpose. However, in the present proposal, the emergency ejection vehicle body is installed stationary at the back of the crane, and it is pulled out from outside using a winch manually or by other available power, and the crane is thereby evacuated outside. Therefore, even in the event of an emergency, the crane can be completely evacuated from an unmanned room without causing any unexpected trouble, which is very effective.

Next, a detailed explanation will be given with reference to the accompanying drawings showing an example of implementation. Reference numeral 1 denotes an emergency ejection rail, which has a cross-sectional shape that wraps around the upper part of the crane 2 laterally in a concave shape, and is installed above and parallel to the rail 3 of the crane. Reference numeral 5 denotes an emergency push-out vehicle body, which is permanently installed in a stationary state at the tip 4 of the emergency push-out rail 1. 6 is a take-up winch, which is installed outside where people can access it. Reference numeral 7 denotes a connecting line made of a wire rope or the like, the tip of which is connected to the emergency push-out car body 5, and runs through the gap 2a at the top of the crane 2, interfering with the abutment part 2' of the emergency push-out car body 5 of the crane. It passes through the emergency push-out rail 1 without moving, bypasses a pulley 8 provided outside the end of the emergency push-out rail 1, descends, and connects to the take-up winch 6. In this case, the emergency ejection vehicle body 5 abuts against the abutting portion 2' of the crane 2, presses the crane 2, and causes the crane 2 to escape to the outside.

This proposal has the above-mentioned configuration, and when attempting to escape the crane 2 installed in a room where humans are prohibited from entering or leaving the room without using the crane's power, By winding the winding winch 6 outdoors and pulling out the emergency ejection car body 5 at the tip over the rail 1 via the connecting line 7 such as a wire rope, the crane 2 located in the middle is pressed by the car body 5. Since it is a device for escaping outside the room and is normally installed in a stationary state, it is subject to unexpected wear and there is no risk of malfunction.
It is very effective because it allows people to easily escape outside the room.

9 in the figure is a chamber wall.

[Brief explanation of the drawing]

The attached drawings show an example of the implementation of the present invention.
The figure is a side view of the mechanism of this device, and FIG. 2 is a sectional view of the main part. 1... Emergency ejection rail, 2... Crane,
2'... Contact part, 3... Crane rail, 4...
...Rail tip, 5...Emergency push-out vehicle body, 6...
Winding winch, 7... Connection line, 8... Pulley, 9...
...Room wall.

Claims (1)

[Scope of utility model registration request] An emergency push-out rail 1 is constructed parallel to the rail 3 of the crane 2, and the tip 4 of the emergency push-out rail 1 is
In addition to permanently installing an emergency ejection vehicle body 5,
The tip of a connecting line 7 such as a wire rope is connected to the emergency ejecting vehicle body 5, and the connecting line 7 is pulled out along the emergency ejecting rail, and the rear end of the connecting line 7 is brought outside. An escape device for an unmanned room crane, characterized in that the crane 2 is connected to a take-up winch 6 provided therein, and a contact portion 2' of the crane 2 with the emergency ejection vehicle body 5 is provided at a position where it does not interfere with the connection line 7. .