JPH0223317Y2 - - Google Patents

Description

[Detailed explanation of the invention] Conventionally, slow descent machines used to descend evacuees from high places in buildings in the event of a fire break out, when not in use, are stored in a storage box together with the descending cable and the reel around which the band at the end of the descending cable is wrapped. When winding the descending cable around the reel, turn the reel side to prevent the descending cable from twisting.
Since it is necessary to eliminate the risk of evacuees turning when descending using a slow descent aircraft, it is not only necessary to have great skill to wrap the bands and descent ropes around the reel so that they do not spin around, but also to prevent the wrapped bands and descent ropes from spinning. It was difficult to make it compact. In addition, during periodic inspections by qualified fire equipment inspectors or fire equipment engineers, or during evacuation drills for building occupants, there is a risk that a reel dropped outdoors may separate from the descent rope or band and roll far on the ground. Even during an evacuation descent, a reel accidentally dropped into the room may roll far on the floor while letting out the descending cable, delaying the evacuation.

The present invention deals with this problem, and a cylindrical drum 4 around which the descending rope 2 of the descending machine 1 and the band 3 at the end thereof are wound is provided with an insertion hole 5 for the end of the band. The gist of the reel 6 is a descending rope reel 6 characterized in that the end of the band 3 inserted through the insertion hole is attached to the inner circumferential wall of the drum 4 to frictionally fix the band end to the drum 4.

1 and 2 show an embodiment of the present invention,
The descending rope reel 6 has a conventional outer diameter flange 7 at one end of a cylindrical drum 4 made of an elastic material such as rubber.
and a flange 8 having a smaller outer diameter than the flange 7 are integrally provided at the other end, and the insertion hole 5 at the end of the band is bored in the drum 4 so as to be biased towards the flange 8.

As shown schematically in FIG. 3, the gradual descending machine 1 is equipped with a groove wheel with which the descending rope 2 is frictionally engaged, and a centrifugal brake connected in conjunction with the groove wheel. After the upper end hook 9 of the machine is engaged with a mounting bracket attached to a predetermined position of a building and the notch of the hook 9 is closed with a screw tube 10, a reel made of an elastic material is wound around the descending cable 2 and band 3. 6 is dropped outdoors, the descending cable and band are allowed to hang down, and the evacuee slowly descends while holding himself in the band 3 above, as before.

According to the above configuration, when winding the band 3 and descending cable 2 around the reel 6, the end of the band 3 that becomes the lower side when hanging as described above is inserted into the insertion hole 5.
The end of the band is attached to the inner wall of the drum 4 as shown in Fig. 1 by inserting the end of the band into the inner wall of the drum 4, and the end of the band is frictionally fixed to the drum by holding it down with a finger inserted through the opening at the side end of the drum. Then, while rotating the reel side, attach the remainder of the band 3 to the drum 4, as well as the descending cable 2 and the other band 3.
When it is wound, its outer periphery reaches approximately the position shown by the chain line A in FIG. Since the band 3 has a thickness of about 6 mm even when folded to be wound around the drum, the band occupies a large proportion of the winding space of the reel 6, but the end of the band is stored inside the drum 4. In addition, the ends of the band are frictionally fixed to the drum, and the remainder of the band and descending line 2 are attached to the reel 6.
In addition, since the reel is wound while rotating, there is no risk of twisting the wrapped descent rope 2, and the band and descent rope wound around the reel are made compact, making it possible to reduce the outer diameter of the flange 8, etc. It can be made smaller than before.

Also, when the reel 6 dropped outdoors during periodic inspection, etc., separates from the band 3 engaged with the insertion hole 5 and falls, the reel 6 is braked due to the frictional resistance between the band and the insertion hole 5. Because of this, there is no fear that the reel will roll far as in the past.

If the outer diameters of the flanges 7 and 8 at both ends of the drum are made different as shown in the figure, the reel 6 rolling on the ground or floor surface F will not draw a linear trajectory but a spiral trajectory. There is no need to search around for loose reels as in the past, which is convenient.

According to the present invention, the end of the band is frictionally fixed to the drum, and the ratio of the band to the winding space of the reel is reduced, making the band and descending rope compact, and moreover, no twisting occurs in the descending rope. Therefore, it is not only easy to wind the descending cable or band, but also the outer diameter of the flange on at least one side of the reel can be made smaller than before, and the reel can be wrapped around the insertion hole. Since the reel is automatically braked when it separates and falls from the band that was engaged with it, there is no fear that the fallen reel will roll far.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional front view of an embodiment of the present invention, FIG. 2 is a developed sectional view taken along the line X--X in FIG. 1, and FIG. 3 is a perspective view schematically showing the entire gradual descent machine. 1... Gradual descent aircraft, 2... Descending cable, 3... Band,
4... Drum, 5... Insertion hole, 6... Descending rope reel, 7, 8... Flange.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A cylindrical drum around which a descending rope of a descending machine and a band at its end are wound, with an insertion hole for the end of the band, and a band inserted into the insertion hole. 1. A descending cable reel, characterized in that the end of the band is attached to the inner circumferential wall of the drum to frictionally fix the end of the band to the drum. (2) A descending rope reel as described in claim (1) of the utility model registration, in which the flanges at both ends of the drum have different outer diameters.