WO2014083221A1

WO2014083221A1 - Levelling-stabilising device for objects supported on legs

Info

Publication number: WO2014083221A1
Application number: PCT/ES2013/070745
Authority: WO
Inventors: Cesar Gancedo Martinez
Original assignee: Cesar Gancedo Martinez
Priority date: 2012-11-28
Filing date: 2013-10-28
Publication date: 2014-06-05
Also published as: ES1078379Y; ES1078379U

Abstract

The invention relates to a levelling-stabilising device for objects supported on legs, objects such as tables, ladders, scaffolding and generally objects that have legs as supporting elements, characterised in that it consists of at least two vertical supports (1,1') on the lower end of each of which is arranged a hydraulic chamber (2,2') containing a piston (3, 3') that forms the element for support on the ground (4), the two hydraulic chambers (2,2') being connected by means of a hydraulic circuit (5) provided with a key (7) for interrupting same, such that when the key (7) is in an opening position, the pistons (3,3') can move together in the vertical direction, and when the key is closed, the pistons are locked in a working position.

Description

LEVEL-STABILIZER DEVICE FOR SUPPORTED OBJECTS

ABOUT LEGS

OBJECT OF THE INVENTION

The present invention relates to a device that has been specially designed to quickly and easily achieve a perfect leveling of any object supported on legs, as well as a fixation or stabilization in such position.

The invention is particularly applicable to tables, portable stairs, scaffolding, platforms of all kinds and in general to all those objects that use legs as a support element.

The device of the invention makes it possible to compensate for marked unevenness in the floor or support surface, adopting the object supported on such device a perfect horizontal and / or vertical leveling. BACKGROUND OF THE INVENTION

Most of the objects intended to rest on the ground through legs, whether through two, four or more of such legs, are structured such that the lower extremity of such legs is included in an imaginary horizontal plane, so that its support is only adequate when the ground is in turn perfectly horizontal, which in practice does not happen in most cases, which makes the object "lame", with the possibility of tilting, which cause in turn that the positioning is unstable. To solve this problem, chocks are usually used that are inserted between the legs and the ground, shims that must have a specific thickness in each case and that make the support unsafe with the consequent risk of more or less serious accidents. Trying to obviate this problem it is known to use regulating screws that are located as a lower extension of the legs and that constitute the supports of the object on the ground. However, this solution is extraordinarily slow and difficult to handle when, over time, fouling occurs that hinders the movement of thread, as for example in the case of objects that can be used in works, where plaster sticks or others fall on them. materials that adhere to the aforementioned screws. In addition the possibilities of regulation of these threaded devices is very short, so that they are unusable in certain cases, such as that of a portable staircase that at a given moment must rest on two steps of a ladder, with obvious and pronounced height difference over the support planes. DESCRIPTION OF THE INVENTION

The leveling-stabilizing device that the invention proposes solves in a fully satisfactory manner the above-mentioned problem, achieving a perfect leveling and stabilization of the object in question, with a simple structure, highly effective and quickly manipulated.

More specifically, the device in question, which may be integrated in the object in question or constitute an adaptable complement thereto, is embodied in a hydraulic piston for each leg, the different pistons being related to each other by means of a hydraulic circuit that the intercoms, a circuit in which an easily accessible stopcock is established, so that when said key is open the pistons can go down and up freely until a perfect leveling of the object is achieved, at which time the closing of said key supposes the stiffening of each and every one of the pistons, with the consequent fixation and stabilization of the object in question with respect to the ground. DESCRIPTION OF THE DRAWINGS

To complement the description that will then be made and in order to help a better understanding of the features of the invention, according to a preferred example of practical implementation thereof, a set of drawings is attached as an integral part of said description. where, for illustrative and non-limiting purposes, the following has been represented:

Figure 1 It shows, according to a schematic representation in front elevation, a leveling-stabilizing device for objects supported on legs made in accordance with the object of the present invention.

Figure 2. Shows, according to a representation similar to Figure 1, a leveling-stabilizing device applied to a portable ladder, supported on a horizontal plane.

Figure 3. Shows a representation similar to that of Figure 2, but in which the ladder appears supported on an inclined plane. Figure 4. It shows, finally, another representation similar to that of Figure 2, but in which the ladder is supported on two different steps of a ladder.

PREFERRED EMBODIMENT OF THE INVENTION

In view of the figures outlined and in particular of Figure 1, it can be seen how the device proposed by the invention is constituted from vertical supports (1, 1 '), which can be integrated into the structure of the object of which try, for example, as part of their legs, or which may constitute an accessory that is adaptable to the object in question. These two vertical supports are topped by their lower extremity in two chambers (2.2 ') in which respective hydraulic pistons (3.3') play, which constitute the real support elements on the ground (4). The different chambers (2.2 ') are related to each other by means of a hydraulic circuit (5) that is associated with both the vertical supports (1) and a crossbar (6) that relates such supports, establishing themselves in the most appropriate place of said hydraulic circuit (5), the most easily accessible, a key (7) capable of maintaining the different branches of the circuit (5) intercommunicated, or unitary isolated.

According to this structuring, when the key (7) is open, the pistons (3,3 ') can rise and fall by passing the oil from one to the other, until a perfect leveling is achieved, at which point the closing of the key ( 7) causes such leveling to be secured and stabilized over time.

By way of example, in the specific case shown in figures 2 to 4, it can be observed that in a portable staircase provided with two legs, the device can be integrated into the ladder, forming part of said legs (8), related by means of the classics crossbars (9), of which one of them corresponds to the crossbar (6) mentioned above, in which part of the hydraulic circuit (5) is housed, in which the key (7) is established. When the ladder rests on the horizontal floor (4), the pistons (3,3 ') finished off in the corresponding non-slip supports (10), emerge from the hydraulic cylinders (2) in the same magnitude, as shown in Figure 2, which makes the ladder adopt a vertical layout. If, on the other hand, the ground (4 ') adopts an inclined plane, with any inclination, the opening of the stopcock (7) means that the pistons (3,3') can move together through the hydraulic circuit, so that the piston (3), corresponding to the lowest support, protrudes from the corresponding chamber (2) in greater amplitude than the piston (3 ') makes it from its corresponding chamber (2'), until the critical moment that the ladder It adopts a perfectly vertical arrangement, at which point the closing of the key (7) breaks the communication between the two chambers, and the pistons remain fixed, completing the slope generated by the inclined plane (4 '). With a similar arrangement for the pistons (3,3 ') and as shown in Figure 4, it is also possible to stabilize the staircase as a whole when it rests on two steps (1 1, 1 1') of a construction ladder.

Claims

one . Leveling-stabilizing device for objects supported on legs, objects such as tables, portable stairs, scaffolding and in general objects that use legs as 5 support elements, characterized in that it consists of at least two vertical supports (1, 1 ') in each one of which is established, at the level of its lower end, a hydraulic chamber (2.2 ') in which a piston (3, 3') plays which constitutes the support element on the ground (4), both being hydraulic chambers (2.2 ') related by means of a hydraulic circuit (5) provided with a stop key (7) thereof, so that in the opening position for said key (7) the pistons (3.3') are They can be combined vertically, being locked in the working position by closing the key (7).

2. Leveling-stabilizing device for objects supported on legs, according to claim 1, characterized in that the vertical supports (1, 1 ') together with the crossbar (6) that relates them, constitute a structure adaptable to the object in question.

3. Leveling-stabilizing device for objects supported on legs, according to claim 1, characterized in that the vertical supports (1, 1 ') together with the crossbar (6) that relates them, form part of the structure of the object in question .