Fire escape – ladder – or scaffold – Horizontal traversing - actuation – control – or response
Patent
1990-01-04
1991-07-02
Machado, Reinaldo P.
Fire escape, ladder, or scaffold
Horizontal traversing - actuation, control, or response
182 37, 182 38, E04G 316, E04G 2100
Patent
active
050279211
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a method and a device for transporting and distributing materials and/or equipment around the periphery of a building.
The invention can be used in the technical field of building construction or renovation works or civil engineering works.
It also relates to a device supplementing equipment which is widely used by builders, i.e. the various types of scaffolding and platforms used for external building works.
2. Description of Background and Material Information
The distribution of various equipment and/or materials around the periphery of a building so that external works can be carried out takes place from the ground using either cranes or mobile elevating machines, or even manually on the working platform or the flooring of the scaffolding.
Cranes provide access to all points of the building exterior, but the costs of using them to carry out external works is very high. In addition, the crane driver's lack of visibility of the external walls opposite the crane is a serious source of danger. As a result of these drawbacks, cranes are hardly ever used to carry out external works.
Mobile elevating machines have a limited working height and allow a satisfactory distribution of equipment and materials only if these machines can circulate around the entire periphery of the buildings, which is seldom the case in practice.
Finally, manual movement on working platforms is difficult and costly. The fatigue caused by such work can be reduced by trucks moving on the floor of the platform since this rolling equipment is inexpensive and easy to move. This method is not or is little used, however, since the space which the trucks occupy impedes movement on the platforms and work itself. The center of gravity of the loads also has to be low if these trucks are to be stable. Loads must therefore be low and wider than they are high.
SUMMARY OF THE INVENTION
The invention aims in particular to remedy these various drawbacks.
According to the method and device of the invention, at least one truck is attached to the parapet of the platform by creating a rigid and sliding or rolling connection therebetween. The truck is therefore always held and guided, during its movements, by the parapet. The connection is provided by at least one sliding or rolling member rigid with the truck and in engagement with at least one longitudinal member of the parapet, preferably the uppermost longitudinal member of the parapet. In addition, the truck-parapet connection makes it possible to transmit at least the horizontal forces in the force diagram of the device to the parapet.
In an embodiment, the chassis of the truck sits astride the parapet and the framework is provided with at least one wheel transmitting the weight of the truck and its load to at least one longitudinal member of the parapet framework.
In a further embodiment, the weight of the truck and its load are transmitted to the framework of the floor of the platform or scaffolding, via the rolling or sliding of the lower portion of the truck on this floor. In this case, the body of the truck may be outside or inside the parapet or straddling the latter.
In all cases, the device provides the truck with all or part of the stability needed for the free positioning of the load which it is transporting. The use of the truck guided by the parapet therefore enables, without additional cost, the transportation of loads above or externally to the parapet without impeding movement and work on the floor. The guiding provided also means that the loads can be readily manually moved simply by pushing. It can also be seen that the truck movements may be readily motor driven.
The installation of the device of the invention on a self-raising scaffolding creates a distribution system which, as a result of the coordinated movements of the truck and the platform, covers the whole of the exterior of the building. The movements of the self-raising scaffolding may also be motor driven.
Depending on the type of tr
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