JPH0775625B2 - Building fire descent evacuation device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an evacuation device capable of safely descending a large number of victims by riding a gondola when a screw fire occurs.

[Conventional technology]

This type of evacuation device needs to be able to control the descent speed against the load of passengers and gondola. Conventionally, it has been proposed to use a brake device as the control mechanism, but the brake device has a risk that speed control is very difficult, acceleration is likely to occur, and failure due to frictional heat is likely to occur. .

Therefore, the inventors previously proposed an evacuation device adopting a so-called escape type (Japanese Patent Laid-Open No. 64-15066),
I tried to solve the problem.

The evacuation device of that application is basically similar to that shown in the embodiment, in which the pin wheel 13 and the pallet fork 14 are pivotally supported by the machine body 10 to be lowered, and the pin wheel 20 of the pin wheel is sequentially mounted on the pallet fork. The upper guide block 23a and the lower guide block 23b, which are received and escaped, are provided in a different shape to control the rotation of the winding drum 12 that rotates integrally with the pin wheel 13.

[Problems to be Solved by the Invention]

According to the escape type evacuation device as described above,
When the upper guide block 23a is pressed downward by the force of the pin wheel 20 turning downward, the pallet fork 14 swings in one direction by the component force of the guide block in the tilt direction, and the swing causes the pin wheel to guide the upper stage guide. When the ankle swings from the block to the lower guide block 23b, the swinging of the ankle is stopped and the swing of the ankle is guided in the upper and lower guides by swinging the ankle in the opposite direction by the component force of the force pressing the lower guide block. The rotation of the pin wheel and take-up drum is controlled by the component force of the blocks 23a and 23b in the direction of inclination. There was no fear of an accident.

However, if the mounting load becomes excessively large, the component force will also increase in proportion to it, and as a result, the pallet fork will be pulled into the pin wheel due to the excessive swing range of the pallet, making it difficult to control the descent speed stably. Also, there is a problem that it is difficult to maintain a constant appropriate speed, although it is less than that of the friction type.

In view of the above situation, the present invention is capable of always maintaining a constant descending speed regardless of the mounted load and capable of starting and stopping the descending evacuation by an extremely light lever operation. The purpose is to provide a device.

[Means for Solving the Problems]

The configuration of the present invention for achieving the above object is such that a pin wheel is pivotally supported on a machine with a gondola to be lowered so as to rotate integrally with the winding drum of the hanging rope, while the pin wheel of the pin wheel is moved to the upper stage. The guide block and the lower guide block sequentially support and support the pallet fork that escapes.The lower part of the pallet is provided with a weight protrusion, and the machine body has stoppers at both ends and a middle portion in the swing range of the protrusion. Each obstacle is provided, and a spring for urging the obstacle so as to project to the position where the obstacle is hooked, and an operation lever for removing the obstacle from the protrusion against the elasticity of the spring are provided. The summary will be given.

[Action]

According to the above configuration, when the obstacle is removed from the projection of the pallet fork by operating the lever, the pallet fork is free to swing, and the upper and lower guide blocks of the pallet receive the pin wheel of the pin wheel. The force acts as a component in the direction of inclination of the guide block, which causes the pallet fork to swing, and one vibration causes the pin wheel to move by one pin wheel, causing the pallet to rotate. However, the rotation speed of the pin wheel is also suppressed by the weight. Further, even if the vibration of the pallet fork becomes faster, it is stopped by the stoppers on both sides, so that the pallet fork does not run out of control, and the descent speed control function is safely maintained.

Also, when the lever is pulled, the descent continues, but when you release your hand from the lever, the obstacle projects with the elasticity of the spring,
The descent is stopped because the pallet fork stops by hanging on the projecting piece.

〔Example〕

 Next, an embodiment of the present invention will be described with reference to the drawings.

The drawing shows one embodiment, and the descent evacuation device is one in which a gondola G is suspended on a machine body 10 having a control device P. The control device P includes a control shaft 11, a winding drum 12, a pin wheel 13, In addition to the pallet fork 14, it is composed of a weight 5, an amplitude control device 6, a handle mechanism 7, etc., which is unique to the present invention.

The machine body 10 serves as a base of the control device P, and the suspension chain 4 of the gondola G is hooked to the machine body 10. Also,
On the upper surface of the machine body 10, a pair of left and right columns that support the control shaft 11 are supported.
16, 16 and a pair of left and right columns 17, which support the ankle shaft 15,
17 and are set up.

On the control shaft 11, winding drums 12 and 12 are integrally attached to both ends between the columns 16 and 16, and a pin wheel 13 is integrally attached to an intermediate portion.

The pin wheel 13 has six pin shafts 19 projecting from one surface of a circular plate 18 along the outer peripheral edge portion thereof at equal intervals, and the pin shaft 19 has a pin wheel.
Twenty is pivotally supported so that it can rotate.

The pallet fork (14) is pivotally supported by the pallet fork (15) so as to swing toward the pin wheel (13) and has a substantially fan shape, but in order to avoid collision with the shaft (11) at the intermediate portion on the control shaft (11) side. A notch 22 is provided in the lower end, and a projecting piece 30 is provided in the center of the lower end. Further, an upper guide block 23a for receiving the pin wheel 20 on the way down and a lower guide block 23b are projectingly provided in the middle of the pallet fork 14, and a weight 5 is provided at the lower end along the arc-shaped edge. It is attached.

Regarding how to install both guide blocks 23a and 23b, the upper end guide block 23a is provided on the control shaft 11 side and the lower guide block 23a is provided on the opposite side thereof so as to be mutually misaligned, and both are tilted low in the misalignment direction. There is.

The amplitude regulation device 6 is configured by providing stoppers 6a, 6a of the protrusion 30 at both ends thereof in the vibration range of the protrusion 30 of the pallet fork 14, and the stopper 6a is made of a rubber-like elastic material suitable for noise prevention. It is formed in a roller shape, and is pivotally supported on the upper end of a standing plate 33 fixed to the machine body 10. The interval between the stoppers 6a, 6a may be adjustable.

In the handle mechanism 7, an obstacle 35 is provided so as to be retractable at a lower portion of the pallet fork 15 in a swinging range of the protrusion 30 of the pallet fork 14. A core rod 36 is attached to the obstacle 35 and a core rod 36 is attached.
Is inserted into and supported by a support cylinder 37, and the obstacle 35 is urged in the “out” direction by a coil spring 38. Also, the core rod
An operation lever 39 is pivotally attached to the base end of 36, and a hanging string is attached to the lever 39.
I have attached 40. In addition, a hole 41 through which the obstacle 35 appears and disappears is provided at the lower end of one of the columns 17 that supports the pallet fork 14.

In the above-mentioned descent evacuation system P, the obstacle 35 is constantly projected by the elasticity of the coil spring 38, is caught by the projecting piece 30 of the pallet fork 14 and stops swinging of the pallet fork 14, and the pin wheel 20 of the pin wheel 13 is reinforced by the pallet fork 14 Upper guide block 23a
Alternatively, the control device P does not operate and the gondola G is in a stopped state because the pin wheel 13 is prevented from rotating by being hooked on one of the lower guide blocks 23b. Therefore, the victim can safely transfer to the gondola G while the gondola G is stopped.

When descending, the disaster victim who has transferred to the gondola G removes the obstacle 35 from the projection 30 and releases the pallet fork 14 by pulling down the hanging string 40 and rotating the operation lever 3p. And if you pull down the hanging string 40
When the pin wheel 13 rotates due to the swing of 14, the control device P operates and the gondola G continues to descend at an appropriate speed.
When the hand is released or loosened from the hanging string 40, the obstacle 35 projects due to the elasticity of the coil spring 38 and hooks on the projecting piece 30 to stop the pallet fork 14, thereby stopping the descent of the gondola G. Therefore, the operation of the gondola G can be performed very easily even by women and women.

The swing of the pallet fork 14 is also suppressed by the weight 5, and the weight 5
The energy stored in is lost by colliding with the stoppers 6a, 6a alternately, so that the descending speed of the gondola G is not accelerated and is kept constant regardless of the descending time, distance, etc. There is no inconvenience such that 14 is attached to the pin wheel 13 so as to be entangled, and the suppressing device P continues to operate safely without trouble.

〔The invention's effect〕

As described above, according to the descending evacuation device of the present invention, since the weight is provided at the lower end portion of the pallet for suppressing the rotation of the winding drum of the hanging rope, the swing speed of the pallet fork is controlled. A very stable constant descent speed can be obtained from the start to the end of descent, and since the swing range of the pallet fork is regulated by both stoppers, there is no trouble due to runaway of the pallet fork, and the descent can be performed safely. Moreover, the descent can be started by pulling the operation lever and stopped by pulling the hand from the lever, so it is extremely easy to drive and even women and girls who are weak in machine knowledge can make mistakes. There is no effect, and there is an excellent effect that you can evacuate safely.

[Brief description of drawings]

1 is a side view of an evacuation descent device, FIGS. 2 and 3 are front views showing the essential parts of the descent device in order of operation, and FIG. 4 is a side view of FIG. 5 is an enlarged sectional view of the handle mechanism. P ... Control device, G ... Gondola 3 ... Suspending rope, 5 ... Weight 6a ... Stopper, 10 ... Aircraft 12 ... Winding drum, 13 ... Pin wheel 14 ... Ankle, 20 ... Pin wheel 23a, 23b …… Guide block, 30 …… Projection piece 35 …… Obstacle, 38 …… Spring 39 …… Operating lever

Claims (1)

[Claims] 1. A machine with a gondola to be lowered supports a pin wheel so as to rotate integrally with the winding drum of the suspension rope, while the pin wheel of the pin wheel is sequentially guided by an upper guide block and a lower guide block. The pallet fork that is received and escaped is supported, and the weight and the protrusion are provided at the lower end of the pallet.In addition, the aircraft has stoppers at both ends and obstacles in the middle in the swinging range of the protrusion, and obstacles. A building fire descent evacuation device, characterized in that a spring for urging an object to a position where it hits the projecting piece and a control lever for removing an obstacle from the projecting piece against the elastic force of the spring are provided. .