FR2843300A1 - Device enabling movement of support leg in soft ground comprises horizontal steel plate with eccentric hole into which hollow tube is welded and into which support leg is introduced - Google Patents

Abstract

The device consists of an oval plate (1) which is placed flat on the ground and has an eccentric hole (2) of a shape adapted to the leg of a ladder. A metal ring (3) is welded to the hole into which the base of the stand is introduced and locked above the plate by a mechanical fixing (6).

Description

The present invention relates to a device for avoiding sinking

  with crutches, a ladder or stepladder, a so-called English cane, cane or high crutch, in loose or uneven ground. Currently, traveling by the sea, in the sand, on paths and in the woods, is subject to crutches being pushed in and loss of stability for the user. Likewise, the fact of using a ladder or a stepladder on soft or sandy soil makes it difficult to use, making the assembly lose all seating. The device according to the invention overcomes this drawback. It 10 is composed of an oval steel plate placed flat, having a circular orifice or a shape adapted to the foot of the material which it will have to support with its user. The hole is offset on the steel plate; this location allows better use of equipment, and allows

  good adaptation to the various soils encountered.

  A metal strip surrounds the orifice which is welded at right angles to the steel plate, it guides and allows the base to be introduced, for example from a

  crutch, ladder or stepladder.

  The set fits over the heel of the stand, ladder or stepladder positioned. A mechanical fixing blocks everything at a maximum height of 20 by 10 centimeters.

  The force exerted on the crutch, the foot of the ladder or stepladder fitted with the device, allows the oval steel plate to put pressure on the ground, and

  thus provides more stability to the user.

  According to particular embodiments, a metal reinforcement can be added to give more rigidity to the base of the device; the fixing passing through the crutch, foot of ladder or stepladder, can be

a nut or a pin.

  Of course, the invention is in no way limited to the embodiment described and shown which has been given only by way of example. Thus, the materials involved in the manufacture of the device of the invention can be made of any rigid metal of sufficient thickness supporting any deformation or plastic material which can be reinforced or reinforced.

2 2843300

  Likewise, the length, width and dimensions of the device can be appreciably different while not creating any risk for the safety of its user, that the device can be covered with plasticized, non-slip material, of any color. In other words, the invention 5 includes all the technical equivalents of the means described, as well as their combinations, if these are carried out according to the spirit and implemented.

  work within the scope of the following claims.

  The accompanying drawings illustrate the invention: - Figure 1 shows the device adaptable on a stand, with in top view, the section of the metal strip (3) and its fixing - Figure 2 shows in profile, the base of the stand introduced into the device, provided with its heel, as well as the fixing - FIG. 3 represents the device adaptable on a ladder or stepladder, with a view from above, the section of the metal strip (3B), and its fixing FIG. 4 represents the device in profile section, the base of the ladder introduced into the device, provided with its heel, as well as the fixing With reference to these drawings, the device comprises an oval steel plate 20 laid flat (1), an eccentric hole (2 and 2a) welded at right angles to introduce the metal base of the stand (4), ladder base

or stepladder (4 bis).

  The assembly adapts above the different crutch heels (5), foot of ladder or stepladder (5 bis) by a mechanical fixing (6) horizontal. 25 For example, the eccentric circular orifice (2 and 2 bis) and its metal strip (3 and 3 bis), are positioned 2 cm from the side edge of the plate

oval steel (1).

  The metal strip (3 and 3 bis) will have a thickness of 3 mm, the plate

  oval steel laid flat (1) 1.5 mm will be welded at right angles.

  A 5 mm circular hole located on a metal strip (3 and 3 bis) allows the fixing using a crutch nut or ladder foot on the device.

Claims (2)

  1 Device to avoid sinking in particular of crutches, feet of ladders or stepladders, in loose or uneven ground, characterized by an oval plate placed flat (1), having an eccentric orifice (2) or of a shape adapted to base of a ladder or stepladder (2 bis), welded to a metal strip (3) or (3 bis), at right angles, into which the base of a crutch (4), a ladder or stepladder (4 bis). A horizontal mechanical fixing (6) blocks the whole, above the crutch heel (5), of the ladder   or the stepladder (5 bis) at a maximum height of 10 centimeters.   The force exerted on the crutch, the foot of the ladder or stepladder, allows the oval steel plate to put pressure on the ground, from top to bottom, and ensures   thus more stability and less penetration to the user.   2 Device according to claim 1, characterized in that the oval plate placed flat (1) and the strip welded thereto, can be of metallic material, steel, aluminum, or rigid plastic material, which can be   reinforced with an internal or external reinforcement, to avoid any deformation.