WO2020139124A1 - Synthetic rope - Google Patents

Abstract

The utility model relates to rope production and can be used for producing synthetic ropes comprising a core and a sheath that are subjected to mechanical loads and the accompanying displacement of the sheath relative to the core. The novel aspect of the claimed utility model is the fact that two or more two-sided synthetic hooked strips are disposed between the core and the sheath of the rope. The proposed technical solution makes it possible to prevent the sheath from sliding along the core when the rope is being used, thereby preserving the operational characteristics of the rope and simultaneously providing low manufacturing costs.

Description

ROPE SYNTHETIC

[0001] The utility model relates to rope products and can be used for the production of synthetic ropes containing a core and a sheath, which are designed to lower the load along a fixed rope, as well as in other areas.

[0002] A synthetic rope is known (see AS SU 727720, class D07B 1/00, 1980) containing a core in the form of polyamide threads and a braid (sheath) arranged parallel to the axis of the rope. A disadvantage of the known synthetic rope in the case of using a rope to lower loads along it is the displacement of the shell relative to the core, leading to a deterioration in the operational properties of the rope.

[0003] A combined rope is known consisting of a core made of synthetic fibers and enclosed in a sheath of synthetic fibers, on top of which is an intermediate layer of soft elastic synthetic material into which steel wire strands of the outer layer of the rope are pressed (see Eurasian patent JMe 017642 B1, IPC D07B 1/02, priority 05/15/2005, applicant and patent holder: KAZAR DRATSAYLVERK SAAR).

[0004] In said rope, there was no slippage of the strands of the sheath relative to the core of the rope.

[0005] A disadvantage of the known combined rope is the relative complexity of its manufacture due to the need to supplement the equipment for the usual process of manufacturing ropes with equipment for extruding the intermediate layer.

[0006] A rope for climbing is known (see CN106012621, application number 102016000544031 of 07/12/2016, publication number 106012621, date publication 12.10.2016, type of publication A, IPC D07B 1/04, D07B 1/16, B05B 7/12). The rope for climbing is made of nylon threads and includes a core, an outer shell and an intermediate shell located between the core and the outer shell, which is an adhesive film. The adhesive film is made of hot-melt adhesive and connects the core and the outer shell to each other so that there are no mutual displacements of the core and the outer shell in the rope.

[0007] The specified climbing rope provides increased safety when using it, since mechanical impact on the rope, leading to displacement or even complete rupture of the outer shell, does not creep along the core of the rope.

[0008] The disadvantage of this rope is the relative complexity of its manufacture due to the need to supplement the equipment for the normal process of manufacturing the rope with equipment for applying glue to the core of the rope, as well as equipment for heating the rope in order to transfer the hot melt into a liquid state for gluing the core and the outer shell of the rope.

[0009] The objective of the proposed solution is to develop a synthetic rope suitable for continuous operation under mechanical stress with the accompanying displacement of the sheath relative to the core.

[0010] This problem is solved due to the fact that in the synthetic rope, consisting of a core and a sheath, between the core and the sheath are two or more double-sided synthetic hook tape. [UN] The proposed technical solution eliminates slippage of the rope sheath along its core, thereby improve the operational properties of the rope and simplify the process of its manufacture in comparison with the manufacture of a rope with an extruded intermediate layer and a rope with an adhesive intermediate layer. When implementing the proposed technical solution, it is necessary to supplement the equipment for the usual process of manufacturing ropes with a mechanical device for attaching a hook tape to the core of the rope, and this device does not belong to complex technological equipment.

[0012] FIG. 1 of the attached images shows the proposed synthetic rope in the context; in FIG. 2 - double-sided hook tape.

[0013] The synthetic rope contains a core 1, a sheath 2 and located between two double-sided hook tape 3.

[0014] The rope is used as follows: fix it at the top point, after which the load is lowered along the rope on the trigger device. When lowering the load, the rope is subjected to mechanical stress, which provokes the displacement of the sheath 2 of the rope relative to its core 1, while the hooks of the hook tape 3, which mesh with the core 1 and sheath 2, prevent the sheath 2 from being displaced relative to the core 1.

[0015] As a result, the declared synthetic rope ensures the preservation of its operational properties when used, in addition, the manufacture of the rope does not require the use of additional processing equipment, which ensures economy in its manufacture.

Claims

FORMULA A synthetic rope consisting of a core and a sheath, characterized in that two or more synthetic double-sided hook tapes are located between the core and the sheath.