JPH0223313Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an evacuation device, and more particularly to an evacuation device that can be operated randomly and that can exert an appropriate braking action according to the weight of the person descending.

Hitherto, various structures have been proposed for evacuation equipment intended for descending from high places, but in general, the braking action is adjusted according to the weight of the person descending to adjust the descending speed to an appropriate level. Many of them were designed in such a way that they required precise operation when descending. Due to the nature of this type of evacuation equipment, it is desirable that it can be used randomly, and as mentioned above, requiring reliable operation may cause fear in the descendants or, in the worst case scenario, There was a possibility that unexpected accidents could occur, so improvements were needed.

The present invention was devised in view of the above-mentioned problems, and its gist is that a rotating body, which has brake drums integrally installed on both sides of a descending rope winding drum, is installed inside the machine frame. The brake drum is rotatably attached to a shaft horizontally mounted on the machine frame, and the horizontal shaft is movable in the vertical direction within the machine frame, and each brake drum has a brake belt with both ends fixed to the upper part of the machine frame. The evacuation device is characterized in that the descending rope is wound in a plurality of turns, and the descending rope is wound in a plurality of turns on the descending rope winding drum. An object of the present invention is to provide an evacuation device that allows the user to descend at a safe speed by automatically adjusting the braking action during descent according to the weight of the person descending.
In other words, the aim is to provide an evacuation tool that can be operated randomly.

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 and 2, a long hole 3 is formed in the center of the side plates 2, 2 of the rectangular machine frame 1 in the vertical direction.
A shaft 4 is inserted into the machine frame 1 through the elongated hole 3.
is horizontally mounted so as to be vertically movable, and a rotating body 5 is rotatably attached to the shaft 4. The rotating body 5 has a descending rope winding drum 6 in the center, and brake drums 7, 7 are integrally provided on both sides of the drum 6, and brake belts 8 are attached to the brake drums 7, 7, respectively. The ends 8a, 8a of the brake belt 8 are fixed to the upper frame 9 of the machine frame 1 with bolts 10, 10, and the descending rope winding drum 6 is provided with: The descending rope 12 inserted through the lower frame 11 of the machine frame 1 is wound approximately 4 or 5 times. The portion of the lower frame 11 through which the descending rope 12 is inserted is a long groove 13 extending in the longitudinal direction of the lower frame 11, and a rope guide 14 is attached below the long groove 13. This rope guide 14
The tool 15 is brought into contact with the descending rope 12, and the descending rope 12 is attached to the descending rope winding drum 6.
This is a device that works to prevent the device from being rolled up incorrectly, and the tool 12
is fixed to the tip of the shaft 17 inserted into the body 16 that constitutes the rope guide 14, facing the descending rope 12 side, and is biased toward the descending rope 12 side via the coil spring 18. The descending rope 12 is sandwiched between the descending rope 15 and the fuselage 16, so that the passing position of the descending rope 12 is always maintained at a constant position. In the figure, 19 is a carabiner connected to the upper part of the machine frame 1, and is used to hang this evacuation equipment from an evacuation area such as an evacuation exit or balcony. Further, 20 is a carabiner connected to the end of the descending rope 12, and is used as an accessory belt worn by the descending person (see Fig. 4).
It is for hanging. The descending rope winding drum 6 may be made of ordinary iron, but it may also be made of other materials that can exert a frictional force against the descending rope and have excellent heat resistance.

Next, the state of descent using the evacuation equipment of the above embodiment will be explained. When descending, the descendant 21 attaches the accessory belt 22 to the body as shown in FIG. descend with one foot on the The descending rope 12 is sufficiently long;
One end is hung down to the ground or other landing point, and the descender 21 holds this hanging descending rope 12, and sequentially sends out the descending rope 12 upward to the distance that the descender 21 has descended. do. The weight of the descender 21 is applied to the rotating body 5 via the descending rope 12, and the shaft 4 of the rotating body 5 is inside the elongated hole 3.
Descend a distance according to your weight. As a result, the contact pressure between the brake drum 7 and the brake belt 8 on the rotating body 5 changes according to the weight of the descender 21,
In the case of a heavy descender 21, the contact pressure is strong, and in the case of a light descender 21, the contact pressure is weak. That is, the braking action by the brake drum 7 and the brake belt 8 is automatically adjusted according to the weight of the descending person 21, and the rotation of the rotating body 5, that is, the drum 6 for winding the descending rope, is almost constant regardless of the weight of the descending person. The rotation speed is limited to Therefore, the descender 21 can descend safely at the circumferential speed determined by the rotational speed of the descending rope winding drum 6, which is limited as described above. Since the descending rope 12 is wound multiple times around the descending rope winding drum 6 to make the friction surface between the drum and the rope sufficiently long, there is no possibility that the descending rope 12 will slip on the descending rope winding drum 6. There is no danger of sudden descent.

If you want to stop during the descent, descender 2
It is only necessary to firmly grasp the descending rope 12 on the hanging side that is held by the user 1 to prevent it from moving upward, and it can be easily stopped.

In this way, by making the rotating body 5 movable up and down within the machine frame 1, the braking action between the brake drum 7 and the brake belt 8 is automatically adjusted according to the weight of the descending person 21. , since we were able to achieve a constant descending speed at random,
People of all ages and genders can descend safely without causing any fear. In addition, since the descent can be stopped simply by firmly grasping the descending rope 12 on the hanging side, the operation is simple and does not require complicated operations, which also improves safety. can be improved.

As described in detail above, in the present invention, a rotating body including brake drums integrally provided on both sides of a descending rope winding drum is rotatably mounted on a shaft horizontally suspended within the machine frame. The shaft is movable in the vertical direction within the machine frame, and each brake drum is wound with a plurality of brake belts with both ends fixed to the upper part of the machine frame. This evacuation device is characterized by a descending rope wrapped in multiple turns, so the braking action during descent is automatically adjusted according to the weight of the person descending, resulting in a random, almost constant, safe speed. This has the effect of providing evacuation gear that can be used for descent.

[Brief explanation of the drawing]

Fig. 1 is a front view of an embodiment of the present invention, Fig. 2 is a side view thereof, Fig. 3 is an enlarged sectional view taken along the line - - in Fig. 1, and Fig. 4 is a front view of the embodiment in use. . 1... Machine frame, 4... Axis, 5... Rotating body, 6...
Drum for winding the descending rope, 7... Brake drum, 8... Brake belt, 12... Descending rope.

Claims (1)

[Scope of utility model registration request] A rotating body with brake drums integrally provided on both sides of a descending rope winding drum is rotatably mounted on a shaft horizontally mounted within the machine frame, and the horizontal shaft moves vertically within the machine frame. In addition, each of the brake drums is wound with a plurality of turns of a brake belt, both ends of which are fixed to the upper part of the machine frame, and the descending rope winding drum is wound with a plurality of turns of a descending rope. Evacuation equipment with certain characteristics.