FR2833250A1 - Lift for transporting loads and persons comprises cabin ascending along ladder comprising vertical guides connected by horizontal beams - Google Patents

Abstract

The lift comprises a cabin (8) which ascends between floors (5) along a ladder. The ladder comprises two vertical guides connected together by horizontal beams (7). One beam comprise a door guiding mechanism and a floor cam stop mechanism.

Description

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METHOD AND DEVICE FOR TRANSPORTING LOADS AND PEOPLE USING A GUIDE BOOT OR GUIDE TRAY
IN SUBSTANTIALLY VERTICAL RAILS
The invention relates to the transport of loads or people generally from the ground or a quay or any other transport vehicle to one or more floors of any building. By building is meant any land, naval, aeronautical construction, etc.

 The word mast designates a more or less vertical construction consisting of two parallel guides used to guide the cabin or the plate by means of rollers or any other track, friction or ball system.

 In the current state of the art, apparatuses generally called hoists or lifts are generally used which consist of a loading platform delimited by railings or covered with a cage. These devices are guided by one or more guides anchored to the building to ensure their stability, but the load lowering is taken up by the feet of the guides which rest on the ground.

 In addition, the landing doors are generally not integral with the guides, but adjusted separately, from an external structure which may be a concrete or metallic building. As a result, a precise adjustment is necessary to ensure correct installation, guaranteeing the functional clearances necessary for the proper functioning of the assembly.

 The guides are more generally distant from the platform carriers.

 The invention consists in implementing two parallel guides which can be merchantable sections and which are used both for the installation of the landing doors and at the same time for guiding the cabin.

 The guides are connected to each other at each floor height by a horizontal beam which can be welded or bolted or even better clamped to them.

 These horizontal beams or landing beams are arranged at each and ge to be served and serve both to keep the guides substantially vertical, to resume the vertical descent of load and to guide the landing carrier7 at the bottom while serving as a bar threshold.

 When mounting such a device, it is possible to pre-mount to the ground

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 a structure composed of two vertical guides (guiding structure) and as many horizontal beams as there are floors to be served on the added height. Thus during handling, the ladder formed by this pre-assembly is brought above the preceding element, connected to the latter. Then the highest horizontal beam for example is lowered down if necessary until it comes to rest on the threshold of the floor and fixed to the latter. The ladder thus set up is stable and there is plenty of time to adjust and connect all the other horizontal beams to the building.

 Once the ladders are in place, all that remains is to install the platform door guides in the upper part and to hang the landing doors. If the site allows, it is possible to pre-mount the guides in the upper part and the doors as well.

 By another aspect of the invention, the cams which serve to slow down and stop the cabin at the level of the landing are integrated in the horizontal beams. Thus without adjustment, we are sure that the cabin will stop automatically at the level of the beam, therefore at the level of the landing.

 By another aspect of the invention, the fact that the guides do not necessarily rest on the ground but are suspended from the building, and in the case where the elevation system is of the pinion / rack or wheel and screw type is interposed between the or the motors and the geared motor (s) a freewheel.

 Thus it is possible to set up mechanical stops limiting the downward stroke of reduced dimensions.

 In fact, in the current state of the art, the low stops are provided with a shock absorber and must imperatively rest on the ground, so much the effort that they have to take up is important. The forces are in fact the self-weight of the cabin to which must be added the forces of the motors driving downwards.

 With the freewheel system, as soon as the cabin touches the low stops, the geared motors rotate in a vacuum.

 The other advantages of this system are that you can stop directly at the platform level of a truck or on the quay of a shipyard if the elevator is installed on a ship afloat without having to install stop cams.

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 The other advantage of this system is that in the event of a collision with the low stops, the reducers do not have to absorb the inertia of the motors launched at their nominal speed, since the freewheels play the role of automatic declutching.

 By another aspect of the invention, in order to reduce the forces in the guide rollers, and thus reduce the section of the vertical guides, while remaining within a reasonable transport template, the cabin is made telescopic.

 The high guide rollers are on the upper part of the high half-cabin, ie at the level of the roof.

 The low guide rollers are on the lower part of the lower half-cabin, ie at floor level.

 By this same aspect of the invention, a cabin is obtained which is easy to transport from one site to another and of large volume for operation on site.

 An improvement of this device consists in installing, in the case of a lift by pinion / rack or wheel and screws, the vertical drive system on the upper half-cabin. Thus, it is possible to telescoping or deploying the two half-cabins thanks to the drive system.

 Plate 1/3 shows the telescopic cabin in the folded position and in the telescoped position.

Plate 2/3 represents the vertical guides, the horizontal parts, the landing doors and the cabin in front view
Plate 3/3 shows the vertical guides, the horizontal parts, the landing doors and the cabin in side view.

1 = Galet de guidage haut 2 = Galet de guidage bas 3 = Demie cabine haute 4 = Demie cabine basse 5 = Plancher 6 = sol 7 = poutre horizontale 8 = cabine 9 = rail guide supérieur droit NOMENCLATURE :

1 = High guide roller 2 = Low guide roller 3 = Half high cabin 4 = Half low cabin 5 = Floor 6 = floor 7 = horizontal beam 8 = cabin 9 = upper right guide rail

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10 = portes fermées 11 = portes ouvertes 12 = bâtiment
L'ascenseur comporte un dispositif d'entraînement du plateau le long de la structure portante, le mécanisme d'entraînement comportant des moto réducteurs munis de roues libres.

10 = closed doors 11 = open doors 12 = building
The elevator comprises a device for driving the platform along the supporting structure, the drive mechanism comprising motor reducers provided with free wheels.

 The elevator has a cabin door linked to the platform and a landing door linked to a landing on which a landing beam is mounted so as to eliminate assembly play between the two doors.

 The ladder typically has a length of the order of 12 m.

The telescopic cabin is high and is to be mounted on or in place of the platform
The cabin roof is telescopic
The elevator comprises a landing beam formed by an angle iron, one of the wings of which is pressed against a landing on which the landing beam rests and thus provides a rolling connection.

 The elevator has adjustable toads for fixing landing beams to masts.

 The elevator has a door suspension beam attached to the two masts.

Claims (11)

CLAIMS 1 - Building elevator comprising a load plate and a guiding structure, the load plate evolving along the guiding structure, the guiding structure comprising two supporting masts fixed to the building, characterized in that the masts are fixed between them and the building by a set of landing beams themselves fixed to the building.  2 - Elevator according to claim 1, characterized in that a landing beam comprises a door guide mechanism.  3 - Elevator according to one of claims 1 to 2, characterized in that a landing beam comprises a stage stop mechanism, in particular a cam mechanism.  4 - Elevator according to one of claims 1 to 3, characterized in that a landing beam is fixed to the building to resume the vertical descent of load.  5 - Elevator according to one of claims 1 to 4, characterized because it comprises a drive device of the plate along the supporting structure, the drive mechanism comprising gearmotors provided with free wheels.  6 - Elevator according to one of claims 1 to 5 characterized in that it comprises a cabin door linked to the platform and a landing door linked to a landing on which is mounted a landing beam, so as to remove assembly play between the two doors.  7 - Elevator according to one of claims 1 to 6, characterized in that it comprises mast elements and pre-assembled landing beams, the assembly forming a ladder of great length, typically of the order of 12 m.  8 - Elevator according to one of claims 1 to 7 characterized in that it comprises a telescopic cabin in height, to be mounted on or in place of the platform, the guide rollers of the cabin being mounted at the base and on the telescopic roof of this cabin.  9 - Elevator according to one of claims 1 to 8, characterized in that it comprises a landing beam formed by an angle iron, one of the <Desc / Clms Page number 6>  wings is pressed on a bearing on which the landing beam rests and thus ensures a rolling connection.  10 - Elevator according to one of claims 1 to 9 characterized in that it comprises adjustable toads for fixing the landing beams to the masts.  11 - Elevator according to one of claims 1 to 10 characterized in that it comprises a door suspension beam fixed to the two masts.