RU2027458C1 - Unit for descent - Google Patents

Abstract

FIELD: alpinist equipment. SUBSTANCE: unit has snap hook and rope (half-stirrup unit). Additional loop is pulled out in opposition to loop which is pulled out in opposition to base end of the rope. The loops are separated in space by means of a protrusion of the snap hook. Snap hook has gush over surface; there is protrusion 5 onto internal generating line of the surface. Rope has base part made in form of loop 6 and two free ends. Branches of base loop embrace snap hook and protrusion 5 by loops 7 and 8; free ends of the rope embrace opposite side of the protrusion. Base loop is disposed between crossed branches 9-10 of the loops. Base loop of the rope is thrown onto the protruding place and descent is realized by controlling tension of both free ends of the rope simultaneously. EFFECT: improved safety. 14 dwg

Description

 The descent device refers to the equipment of climbers and can be used to lower people and various objects from protruding terrain. It is possible to use the device in rescue equipment and during airborne landing of people and cargo.

 A device for launching (1), comprising a carbine and a cable interacting with the surfaces of the bend of the carbine.

 However, the braking force in similar devices, equivalent to the mass of the object being lowered, is small and does not exceed 6000 N (600 kgf) (2). In addition, the known device does not allow the descent of people or goods remotely, being on the level line remote from the carbine connected to the lowering object, and also makes it impossible to carry out insurance descending.

 The technical task of the invention is to increase the mass of the dropped objects, the implementation of the remote descent of objects and an increase in safety during operation of the device.

 This goal is achieved by the fact that the carbine is equipped with a latch with a clutch, forming a closed loop together with the body of the carbine, a protrusion is made on the inner surface of the carbine, the cable is placed in the carbine with the formation of an elongated root loop, the branches of which are located on opposite sides of the protrusion and on opposite sides of plane of the carabiner, and the branches of the root loop are placed counter one another around the surfaces of the bend of the carabiner and with the formation of additional counter-located along the body of the carabiner e, covering the root loop on the outer surface of the carabiner, and are missing inside the body of the carabiner with the arrangement of branches parallel to one another.

 In FIG. 1 shows a descent device; in FIG. 2 - an option for mounting it; in FIG. 3-8 - a sequence of operations performed for the interaction of the cable with the surfaces of the bend of the carabiner; in FIG. 9-14 are specific examples of the use of a descent device.

 In FIG. 1, a trigger device is shown, consisting of carabiner 1 and cable 2. Carabiner 1 has a latch 3 and a clutch 4. The latch 3 is used to insert the cable 2 into the internal body of the carabiner 1. The clutch 4 clamps the latch 3 at the place where the latter engages with the body of the carabiner 1. The body of the carabiner, the latch 3 with the clutch 4 form a closed loop of the carabiner. A protrusion 5 is made on the inner surface of the carabiner 1. The protrusion 5 spatially separates the loops 7 and 8 and thereby eliminates the friction of the said loops against each other along the axial generatrix of the cable with a loaded carabiner 1. This reduces the wear of the cable and eliminates the possibility of spontaneous locking of the assembly formed on the surface of the bend of the carabiner 1. The cable 2 is placed in the carabiner 1 with the formation of a root loop 6. The branches 7 and 8 of the main loop 6 are located around the surfaces of the bend of the carabiner 1 from opposite sides projection 5 and on opposite sides of the plane of the rifle, i.e. placed opposite one another, and also form loops 9 and 10 located along the body of the carabiner, covering the root loop 6 from the outer surface of the carabiner and passing into branches 11 and 12, missed inside the body of the carabiner. The root loop 6 is fixed at the relief point of the protruding terrain, and the carabiner 1 is connected to the lowering object.

 In FIG. 2 illustrates an attachment option for a descent device. The carbine 1 is fixed at the relief point of the protruding terrain, and the lowered object is connected to the root loop 7. The branches 11 and 12 are directed towards the root loop 6.

 In FIG. 3-8 show the sequence of operations performed for the interaction of the cable with the surfaces of the bend of the carabiner.

 Initially form a root loop 6 (figure 3). The branches 7 and 8 of this loop are located on opposite sides from the plane of the carabiner 1. Then, the sleeve 4 (Fig. 4) is shifted in the radial direction, the latch 3 is bent into the internal body of the carabiner 1, branches 7 are passed into this body from opposite sides from the plane of the carabiner and 8 and place them on opposite sides of the protrusion 5 (Fig. 5), after which the branches 7 and 8 are placed around the bend surfaces of the carbine towards one another. Then, loops 9 and 10 (FIGS. 6 and 7) are formed, covering the root loop 6 from the side of the outer surface of the carbine 1 and located along the body of the carbine, the branches 11 and 12 (Fig. 8) are passed into the internal body of the carbine 1, and the carabiner is latched 3 (figure 1) and clamp the latch in place of its engagement with the body of the carabiner clutch 4.

 The omitted object is connected to the carabiner 1, and the descent of this object is carried out by changing the tension of the branches 11 and 12 of the cable (figure 1). When transferring force to branches 11 and 12, the lowered object transfers its mass through carabiner 1, branches 7 and 8 to loops 9 and 10. The latter compress the root loop 6, which is equivalent to tightening the knot on the surface of the bend of carabiner 1, and the carabiner with it fastened the object hangs motionlessly on the root loop 6. When the tension of the branches 11 and 12 is reduced, the adhesion force of the loops 9 and 10 with the root loop 6 is reduced, which is equivalent to loosening the knot on the surface of the bend of the carabiner 1 and lower the carabiner with the object fixed on it along the branches 11 and 12 of the cable .

 Possible descent of objects by pulling the root loop 6 (figure 2) from the fixed carabiner 1. In this case, the lowering object is connected to the root loop 6. The adjustment of the descent speed is carried out similarly.

 According to the results of the pilot test, the change in the tension force of the branches 11 and 12 of the cable, sufficient to control the speed of the launched objects up to their stop, is within 1-2% of the equivalent mass of these objects. Due to the large gear ratio, the device is able to replace the system of mechanical blocks.

 In FIG. 9-14 show specific examples of the use of a descent device.

 In FIG. 9 the descending is connected to the carabiner 1 by means of a chest harness. The root loop 6 is tied to a hook driven into a crevice of a rock. The descent is carried out by adjusting the tension of the branches 11 and 12.

 In FIG. 10 is the same, but branches 11 and 12 are simultaneously an additional support for the descendant. The carbine is fixed on the back of the descending one.

 In FIG. 11 descending is connected to the root loop 6, elongated from the carabiner 1. Carabiner 1 is mounted on a hook (Fig.2), and the descent is carried out by adjusting the tension of the branches 11 and 12 (Fig.11).

 In FIG. 12 shows the same circuit as in FIG. 11, but the descent is remotely carried out by the insurer, located on a different level line from the descending one. Cushioning increases device security.

 In FIG. 13 shows the same circuit as in FIG. 12, but the object to be lowered is the load.

 In FIG. 14 shows a descent diagram as in FIG. 9, but the descendant insures himself with the help of an ice ax tied to branches 11 and 12. The ice ax balances the descendant. The descent is carried out by alternately raising the branches 11 and 12. Instead of an ice ax, another object can be used.

 Before the prototype, the claimed device has the advantage of increasing the mass of the dropped objects, at least 2.5 times and requires much less effort from the descending one.

 In addition, the claimed device allows the descent of people or goods remotely, while on a level line remote from the carbine.

 The latter circumstance makes it possible to provide security for a descending one, which increases the safety of the device during its operation.

Claims (1)

 DEVICE FOR DESCENT, containing a carbine and a cable interacting with the surfaces of the carbine, characterized in that the carbine is provided with a latch with a clutch, forming a closed contour together with the body of the carbine, a protrusion is made on the inner surface of the carbine, the cable is placed in the carbine with the formation of an elongated root loop, a branch which are located on opposite sides of the protrusion and on opposite sides of the plane of the carabiner, and the branches of the root loop are placed opposite one another around the surfaces of the bend of the carabiner and rofessional additional oppositely disposed along the body carbine loops covering radical loop with the outer surface side of the rifle and passed inside the body of the rifle with the location of the branches parallel to one another.

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