FR2698668A1 - Device for quickly connecting a mobile elevation system to a fixed support or both parts of a towing or mooring. - Google Patents

Abstract

The invention relates to a device made in two parts; a support element and another, removable, which receives pulley, hooks or ring as required. This element has two anchoring pins pulled by a spring operating in compression or traction depending on the version. Its installation can be done with a small rope installed on the support. Depending on the desired use, it offers two anchoring solutions: automatic or controlled. The device according to the invention is particularly intended for lifting large loads and for towing or mooring machinery or boats.

Description

The present invention relates to a device for quickly connecting

  a mobile elevation system to a fixed support, or the

  two parts of a tow or mooring.

  This device called "ratchet" also concerns a simple device designed to safely allow workers to climb and descend to the top of palm trees (or other trees) to perform during the year the work required for their work.

  maintenance, or fertilization and date harvesting.

  These different works are traditionally carried out under precarious conditions and without any security often resulting in

accidents by falls.

  Indeed, the workers go up and down and hold on top with the only help of a rope around the body and barefoot, which causes pain in the back and feet

  can lead to falls from exhaustion (Fig 1 & 2).

  The device is made with a set of elements of which

  some are permanently attached to the tree and other mobiles.

  It consists mainly of: a) a support permanently attached to the top (Fig 3) and which will receive at the time of installation the automatic attachment of the lift system (mitt) (Fig 4) To do this, a cable

  weighted this team support, all remaining pending (Fig 5).

  b) a carriage assembly carrying two winches: a main ensuring the ascent and descent of the worker, and an auxiliary securing the automatic ratchet on the fixed support

(Fig 4) -

  c) the worker is equipped with a harness (Fig 6) which, hooked to the mittle will ensure him up and down safely, the winch

  being actuated by a second operator (Fig 6).

  This automatic ratchet comprises more particularly a female element which can be fixed (Fig 11 21) and another male and removable, intended to receive as needed: pulley, hook,

rings, etc. (Fig 12).

  The device comprises mainly for the removable male element: two steel flanges (Fig 13 22) spaced apart by

spacers (Fig 13 23).

  In the space thus created articulates the two lugs (Fig. 12.24) which ensure the hooking on the bearing face of the female element (Fig 11 25). These two lugs are controlled by a piece (Fig 12 26 ) having a double cone and permanently recalled by a compression spring (Fig 12 27) which ensures these pins permanently retracted position, which requires traction

  between the ends of the element to ensure their exit.

  The female element (FIG. 11) consists mainly of a bearing face (FIG. 11) fixed to a support whose shape is

  performed according to the desired use.

  A different version consists in the replacement of the spring in compression (Fig 12 27) by another in tension (Fig 14 28)

  which ensures permanently the position of the pins.

  During the passage in the female element (Fig 11), they retract by pressure and resume their position instantly Pulling on the conical part by means of a small cable (Fig 14 29) ensures the retraction of the lugs and the separation of the elements The dimensions of the device are calculated according to the desired use and the power required. The use is as follows The weighted end of the small cable can thus be lowered and fixed to the pawl, the other end is attached to the auxiliary winch (Fig 9 17) to thereby hoist the pawl to its upper support (Fig 4) ( It can be also by manual traction). The ratchet being already maintained by the auxiliary winch, two lugs can be supported on the fixed support, by traction of

  the worker equipped with his harness, connected by the mittle to this ratchet.

  The ease of assembly and disassembly allows among other things to provide service on several workstations simultaneously with the same traction equipment (winch) (case of several palms). In summary, the above device can be used for many other applications such as towing or mooring vehicles, boats, etc. or for quick rescue by means of a basket of people at risk in case of fire.

  tall buildings or others, and in an economical way.

Claims (3)

  1) Device for quickly connecting a mobile elevation system to a fixed support, or parts of a towing or mooring having two different elements that can connect or separate remotely (Pfg I 5), characterized in that it consists of a main element (Fi '12) called 11 cliquetir. comprising a space in which two controlled pins (24) are articulated by a piece (26) carrying a double cone and permanently recalled by a spring (27 or 28).   the hooking on the bearing face (25) of a second element (21).   2) Device according to claim 1 characterized in that it is used in a simple device for safely allow workers to climb and descent to the top of the palm trees (or other trees) to perform the work necessary for their maintenance (Fig 8) and in this case the weighted end of a small cable waiting on a fixed support at the top of the shaft can be lowered and attached to the 11 ratchet the other end of the cable is hooked to an auxiliary winch so as to hoist the pawl to its upper support The pawl being already maintained by the auxiliary winch, the two lugs (24) can bear on support faces (25) of the fixed support by traction of the equipped worker its harness connected by a muffle to this pawl (This pawl can also be hoisted by manual traction).   3) Device according to claims 1 or 2 characterized in   in addition that under the action of the spring (28), the lugs are out permanently and their retraction ensured by traction on a small cable (29) actuating the conical part for the separation of two elements.