FR3064617A1 - MONTE-CHARGE OF CONSTRUCTION - Google Patents

Abstract

A set of parts intended to form a construction hoist, comprising: at least one support foot (4), designed to be positioned vertically, and having a fastening element (45), a lifting element (81), designed for making a movement along a longitudinal axis at the support foot (4), a translational element (8), designed to effect a movement along an axis transverse to the support foot (4), characterized in that the set of parts further comprises at least one guide rail (6), adapted to be fixed transversely to at least one support foot (4), in a fastening zone corresponding to the fastening element (45) of a support foot ( 4), and having at least two holding sections located on either side of the attachment zone, at least two reinforcing arms (5) each having a first end (55) designed to be fixed to the holding section respective of the guide rail (6) and a second end (43) e to be fixed to the support foot (4).

Description

(54) CONSTRUCTION LOADER.

FR 3 064 617 - A1 (57) Set of parts intended to form a work site hoist, comprising: at least one support leg (4), designed to be positioned vertically, and having a fixing element (45), an element lifting (81), designed to perform a movement along a longitudinal axis to the support leg (4), a translation element (8), designed to perform a movement along an axis transverse to the support leg (4), characterized in that the set of parts further comprises at least one guide rail (6), designed to be fixed transversely to at least one support foot (4) in a fixing zone corresponding to the fixing element (45) of a support leg (4), and comprising at least two holding sections located on either side of the fixing zone, at least two reinforcing arms (5) each having a first end (55) designed to be fixed to the respective holding section of the guide rail (6) and a second ext remitted (43) designed to be fixed to the support leg (4).

i

The subject of the invention is a site hoist and more particularly a site hoist intended to be installed at the level of the floor of a building to be supplied with components.

By freight elevator is meant a device making it possible to transport components vertically, which may for example be materials, objects, kitchen elements, etc.

Hoists are used to supply components to a site located on one floor of a building. These are freight elevators temporarily installed. This is called a site hoist. They can be installed for example on a balcony between two slabs on one floor, in a stairwell, an elevator hopper, a picture window, or a window. To limit costs, they must be movable and reusable.

There are known solutions for site hoists. The state of the art can be illustrated by patent document US2002084238 which discloses a freight elevator equipped with four support feet, a guide rail, a lifting element mounted on an element in translation. This freight elevator is intended to be fixed between two slabs on one floor, facing an opening through which the guide rail passes. It allows components to be mounted at the level desired and then transferred to the interior of the volume in which the freight elevator is placed.

The drawback posed by this freight elevator is that it requires a large floor space at the level of the site floor. Indeed, the support structure of the guide rail is composed of four support legs that must be placed facing the transfer opening.

Furthermore, the presence of the support feet, on either side of the guide rail, does not allow handling laterally when the components are opened, during reception. Objects should only be retrieved from the opening through which they were transferred.

In addition, the system described can be folded but it is not intended to be disassembled between each use. Thus the freight elevator itself may be difficult to assemble and install on the floor of the site.

The object of the invention is to remedy all or part of the aforementioned drawbacks by proposing a set of parts intended to form a site hoist, comprising:

- at least one support leg, designed to be positioned vertically, and having a fixing element, [Type text]

- a lifting element, designed to perform a movement along a longitudinal axis at the support leg,

- a translation element, designed to perform a movement along an axis transverse to the support leg, characterized in that the freight elevator further comprises:

- At least one guide rail, designed to be fixed transversely to at least one support leg in a fixing zone corresponding to the fixing element of a support leg, and comprising at least two holding sections located on the side on the other side of the fixing area.

at least two reinforcing arms each having a first end adapted to be fixed to the respective holding section of the guide rail and a second end designed to be fixed to the support leg.

Thus, the part assembly makes it possible to assemble, by a single worker, a freight elevator at the level of the floor to be supplied. Each piece weighs less than 25kg in order to handle them without risk of injury.

According to a characteristic of the invention that a guide rail is designed to be fixed transversely to a support leg at a fixing zone positioned substantially in the middle of the guide rail.

Thus the presence of a single support leg per guide rail makes it possible to limit the floor area occupied by the assembled freight elevator. In addition, its balanced structure allows rapid installation and disassembly by one man. The support leg, intended to be positioned at an opening, does not hinder the handling of the load when it is received. Finally, the length of the guide rail intended to be positioned outside the building is substantially identical to the length of the guide rail intended to be positioned inside the stage to be supplied.

According to a characteristic of the invention, the guide rail has two holding sections positioned symmetrically on either side of the fixing zone, substantially on the first quarter and the last quarter from one end of the guide rail. .

Thus the guide rail is supported over its entire length, increasing its mechanical strength.

According to a characteristic of the invention, the second ends of each of the two reinforcing arms are designed to be fixed at the same level of the support leg.

[Type text]

Thus the means of fixing the reinforcement arms to the support leg is simplified. Indeed, the reinforcement arms are fixed to each other in addition to being fixed to the support foot. Furthermore, the resistance of the guide rail is thus uniform over its entire length.

According to a characteristic of the invention, the guide rail has a T-shaped groove which extends along said guide rail.

Thus the rail has a cavity which lightens the weight of the guide rail and allows the translation element to slide.

According to a characteristic of the invention, the assembly includes two guide rails.

Thus the freight elevator forms an arch in the middle of which the load is transported, making it possible to increase the mechanical resistance of the assembly.

According to a characteristic of the invention, the translation element comprises four wheels, intended to roll inside the T-slot, having a diameter substantially equal to the length of the internal part of the T-slot in transverse view.

Thus the force exerted by the load is distributed at four points on two rails making it possible to increase the mechanical resistance of the assembly. Furthermore, the wheels are held by the guide rail allowing a single axis of movement for the translation element.

According to a characteristic of the invention, the translation element is a plate possibly equipped with a motorized transport source.

Thus, the movement of the translation element along the groove of the guide rail can be remote controlled or actuated by a worker by means of a pole.

According to a characteristic of the invention, the top of the translation element is designed not to protrude from the guide rail when the wheels are inserted in the T-slot.

Thus the maximum height of a load that can be transported is optimized in relation to the floor in which the work is carried out. Indeed, the guide rails can be positioned as close as possible to the upper slab of the floor to be supplied, thus maximizing the height available.

According to a characteristic of the invention, the lifting element is designed to be fixed on the translation element.

Thus the freight elevator has only one cable which is intended to raise and lower the load. The installation and disassembly of the freight elevator are facilitated.

[Type text]

According to a characteristic of the invention, the part assembly includes a safety barrier intended to be positioned on a hinge on a return spring between the two support legs.

Thus the loads are not hampered during translation inside the building and the barrier closes after the passage of the loads. The safety of workers is increased by reducing the risk of accidental fall.

The invention also relates to a site hoist positioned at the opening of a storey of a building comprising:

- at least one support leg positioned vertically, and having a fixing element, a lifting element designed to effect a vertical movement, a translation element designed to effect a movement along an axis transverse to the support leg, characterized in that the lift also includes:

at least one guide rail fixed transversely to at least one support leg in a fixing zone corresponding to the fixing element of a support leg, and comprising at least two holding sections located on either side of the fixation.

at least two reinforcing arms each having a first end fixed to the respective holding section of the guide rail and a second end fixed to the support leg.

Thus, a freight elevator makes it possible to mount a load at the level of the storey to be supplied and then to transfer it inside the building. A worker therefore does not have to bend over the void when receiving the load. The risk of accidental fall is reduced. In addition, the freight elevator allows the transport of large loads. In fact, the guide rail is fixed to a support leg at least at the level of a fixing zone and at least at the level of two holding sections.

The invention also relates to a site hoist positioned at the opening of a storey of a building comprising:

- two support legs positioned vertically, and each having a fixing element, a lifting element designed to effect a vertical movement, a translation element designed to effect a movement along an axis transverse to the support leg, characterized in that the freight elevator further includes:

[Type text]

- two guide rails, each fixed transversely to a support leg in a fixing zone corresponding to the fixing element of a support leg, and each comprising at least two holding sections located on either side of the attachment area.

- At least two reinforcing arms, for each of the support legs, each having a first end fixed to the respective holding section of the guide rail and a second end fixed to the support foot.

Thus, the freight elevator optimizes the load that can be transported while maintaining a structure with a limited number of parts. The maximum load that can be moved is 1 ton.

The invention will be better understood from the following description, which relates to one or more embodiments according to the present invention, given by way of nonlimiting examples and explained with reference to the appended schematic drawings, in which:

- Figure 1 is a side view of the device according to the invention

- Figure 2 is a top view of the device according to the invention

- Figure 3 is a front view of the device according to the invention

- Figure 4 is a perspective view of the device according to the invention positioned at an opening of a floor of a building.

Figures 1 to 4 show an embodiment of a freight elevator 1 according to the invention in its assembled configuration and positioned between two slabs 2, 3 of a floor of a building, facing an opening. The different elements of the freight elevator 1 are fixed to each other in a reversible manner by means of a fixing system of the screw-nut type allowing a worker to pass the freight elevator from a “kit” state. ie a set of spare parts, in an assembled state, and vice versa.

The freight elevator in a “kit” state includes the following parts: two support legs 4, two guide rails 6, 4 reinforcement arms 5, a translation element 8, a lifting element 81, a safety barrier 7 and a safety bar 62.

The support leg 4 is composed of a first part 46 which slides in a second part 47 in order to adjust the height of the support leg 4. Each of the parts 46, 47 has on two faces facing each other. regularly spaced bores 42. When the two parts 46, 47 are in place, they are fixed together by means of a fixing pin (not shown). Thus, the support leg 4 is adjustable in height between 2m and 3m50.

[Type text]

Furthermore, the support leg 4 has at each of its ends a fixing plate 41, 44 provided with four bores 441.

In addition, the support leg 4 comprises, at its end 44 intended to be positioned at the top when the support leg 4 is vertical, a fixing element 45. The fixing element 45 is in the form of a plate provided with bores intended to receive a screw-nut system.

The guide rail 6 is a rail which comprises in its center, a fixing zone, and at each of its ends, a holding section. The fixing zone is provided with bores corresponding to the recesses of the fixing element 45 of the support leg 4. The holding section is provided with bores intended to receive a screw-nut system.

Furthermore, the guide rail 6 has a T-shaped groove 64 over its entire length. It measures between 2m and 3m. A first end of the rail is provided with a cover 61. A second end of the rail is provided with a slot 65 on the face opposite to that having the T-shaped groove 64.

The reinforcing arm 5 is a hollow beam which comprises a first end provided with a fixing plate 55 whose bores correspond to the bores of the holding section of the guide rail 6. The second end comprises a fixing part 43 provided with '' bores intended to receive a screw-nut system.

The translation element 8 has a structure of two support beams 82 arranged parallel to one another and assembled by two transverse hollow beams 83. The support beams 82 are provided at their ends with wheels 84. The transverse beams 83 support a lifting element 81.

The lifting element 81 is a winch comprising a motorized drum on which a lifting cable 85 is wound. The motor is controlled remotely by means of a remote control.

The safety bar 62 is a beam of length equal to the length of the support beam 82 of the translation element 8 increased by two thicknesses of wheels 84. The safety bar 62 has at its ends a system of screws and bolts 63 with a diameter equal to the thickness of the slot 65 of the guide rail 6.

The safety barrier 7 has a thickness of a few centimeters, a length slightly greater than the length of the support beam 82 of the translation element 8 and a height of 50 centimeters. The safety barrier 7 is provided with a spring hinge 71.

[Type text]

In the assembled configuration of the freight elevator 1, the support legs 4 are fixed vertically between the two slabs 2, 3 on one floor by means of dowels passed through the bores 441 of the fixing plates 44, 41 present at their ends. The fixing between the support leg 4 and the guide rail 6 is carried out by bolting the fastening element 45 present on the support foot 4 with the fixing zone present on the guide rail 6. The fixing plate 55 of the reinforcement arms 5 is bolted with the fixing section of the guide rail 6. The fixing pieces 43 of the reinforcement arms 5 are bolted together and to the support leg.

Thus, the site hoist 1 comprises two assemblies formed by a guide rail 6, a support leg 4 and two reinforcing arms 5. The two assemblies are independent of each other, symmetrical and positioned opposite each other, on either side of a building opening. The Tee grooves 64 of the guide rails are parallel and facing each other and the sealed ends 61 of the guide rails 6 are positioned outside the building.

The distance between the support legs 4 is equal to the distance between the wheels 84 of the translation element 8 which are positioned inside the T-slot 64 of the guide rails 6. After the installation of the translation element 8 between the guide rails 6, the safety bar 62 is placed at the level of the slots 65 of the two guide rails 6. Thus, the cover 61 of the guide rail 6 at one end and the bar safety 62 at the second end serve to retain the translational element 8. The translational element 8 is moved along the guide rails 6 by means of a pole maneuvered by a worker.

The security barrier 7 is put in place by means of hinges 71 between the two support legs 4 so that the top of the security barrier reaches a height of between lm50 and 70cm from the lower slab 2, for example lmlO.

When the freight elevator 1 is installed, a worker pushes the translational element 8, using a pole, against the sealed ends 61 of the guide rails 6. Then he lowers the lifting cable 85 by means a remote control which operates the motor of the lifting element 81. The load 86 is then attached to the lifting cable 85 and then reassembled, up to the floor on which the freight elevator 1 is placed, by operating the motor of the lifting element 81. The worker brings the translation element 8 using the pole to the interior of the building so as to abut against the safety bar 62. During the translation of outside towards inside, load 86 came into contact with safety barrier 7 and pushed it [Type a text] inwards. The safety barrier 7 opened during the passage of the load 86 and then closed thanks to the return spring 71.

Of course, the invention is not limited to the embodiments described and shown in the appended figures. Modifications remain possible, in particular from the point of view of the constitution of the various elements or by substitution of technical equivalents, without thereby departing from the scope of protection of the invention.

[Type text]

Claims (13)

1. Set of parts intended to form a site hoist, comprising: at least one support leg (4), designed to be positioned vertically, and having a fixing element (45), - a lifting element (81), designed to perform a movement along a longitudinal axis at the support leg (4), - a translation element (8), designed to perform a movement along an axis transverse to the support leg (4), characterized in that the set of parts further comprises: - at least one guide rail (6), designed to be fixed transversely to at least one support leg (4) in a fixing zone corresponding to the fixing element (45) of a support leg (4) , and comprising at least two holding sections located on either side of the fixing zone, at least two reinforcing arms (5) each having a first end (55) designed to be fixed to the respective holding section of the guide rail (6) and a second end (43) designed to be fixed to the support leg (4). 2. Set of parts according to claim 1, characterized in that a guide rail (6) is designed to be fixed transversely to a support leg (4) at a fixing zone positioned substantially in the middle of the rail. guide (6). 3. Set of parts according to any one of the preceding claims, characterized in that the guide rail (6) has two holding sections positioned symmetrically on either side of the fixing zone, substantially on the first quarter and the last quarter from one end of the guide rail (6). 4. Set of parts according to any one of the preceding claims, characterized in that the second ends (43) of each of the two reinforcing arms (5) are designed to be fixed at the same level of the support leg (4). 5. Set of parts according to any one of the preceding claims, characterized in that the guide rail (6) has a T-shaped groove (64) which extends along said guide rail (6). [Type text] ίο 6. Set of parts according to any one of the preceding claims, characterized in that it comprises two guide rails (6). 7. Set of parts according to claim 6, characterized in that the translation element (8) comprises four wheels (84), intended to roll inside the T-slot (64), having a substantially equal diameter to the length of the internal part of the T-slot (64) in transverse view. 8. Set of parts according to claim 7, characterized in that the translation element (8) is a plate possibly equipped with a motorized transport source. 9. Set of parts according to any one of the preceding claims, characterized in that the top of the translation element (8) is designed not to protrude from the guide rail (6) when the wheels (84) are inserted in the T-slot (64). 10. Set of parts according to any one of the preceding claims, characterized in that the lifting element (81) is designed to be fixed on the translation element (8). 11. Set of parts according to any one of the preceding claims, characterized in that it comprises a safety barrier (7) intended to be positioned on hinge on return spring (71) between the two support legs (4) . 12. Construction hoist (1) positioned at the opening of a storey of a building comprising: - at least one support leg (4) positioned vertically, and having a fixing element (45), a lifting element (81) designed to effect a vertical movement, a translation element (8) designed to effect a movement according to an axis transverse to the support leg (4), characterized in that the freight elevator further comprises: at least one guide rail (6) fixed transversely to at least one support leg (4) in a fixing zone corresponding to the fixing element (45) [Type a text] of a support leg (4) , and comprising at least two holding sections located on either side of the fixing zone. at least two reinforcing arms (5) each having a first end (55) fixed to the respective holding section of the guide rail (6) and a second end (43) fixed to the support leg (4). 13. Construction hoist (1) positioned at the opening of a storey of a building comprising: - two support legs (4) positioned vertically, and each having a fixing element (45), a lifting element (81) designed to effect a vertical movement, a translation element (8) designed to effect a movement according to a axis transverse to the support leg (4), characterized in that the freight elevator (1) further comprises: two guide rails (6), each fixed transversely to a support leg (4) in a fixing zone corresponding to the fixing element (45) of a support leg (4), and each comprising at least two sections of holding located on either side of the fixing area. - at least two reinforcement arms (5), for each of the support legs, each having a first end (55) fixed to the respective holding section of the guide rail (6) and a second end (43) fixed to the foot -support (4). [Type text] 441 2/3 2- ^ e