EP2042670A1

EP2042670A1 - Scaffolding platform

Info

Publication number: EP2042670A1
Application number: EP08016742A
Authority: EP
Inventors: Rildo Soares Salgado; Michael Röck
Original assignee: Sh Industria De Metalurgia E Servicos De Engenharia Ltda
Current assignee: Sh Industria De Metalurgia E Servicos De Engenharia Ltda
Priority date: 2007-09-26
Filing date: 2008-09-24
Publication date: 2009-04-01
Also published as: BRPI0703762A2

Abstract

Module for metallic floor for scaffolds, comprising lateral structural profiles (1); heads (2) one of them being mounted on the upper side of the male extremity of the module and the other head being mounted on the under side of the female extremity of the module; trellis-work (3) joining inferior crosspieces (4); a central deck plate (5); rabbets (6) having look-like extremities for mounting the module on horizontal cross-pieces of a scaffold; locking elements (8) for preventing lifting of the module; a jamb (9); whereby the modules (M) of the related metallic floor can be locked to the tubular structure of the scaffold by said rabbets (6) or adjoining modules can be slid into each other by said male and female extremities, the sliding movement being stopped by said locking elements (8), to compose a floor of a defined length.

Description

FIELD OF THE INVENTION

The present invention in general relates the metallic floors for use in towers of truss and, in particular, to a module of metallic floor with rabbets for hook in tubular truss where it is possible to incase one or more modules of floor between itself until reaching a length have limited.

DESCRIPTION OF THE PREVIOUS TECHNIQUE

Currently they are known floors metallic manufactured in an only metallic plate and for distinct applications of assembly, they for rabbet or support are on truss pipes.
Such metallic floors more have raised weights and they do not take care of the two necessities in one same model (rabbet and overlapping), beyond having a cost well higher.
Still today the plates wooden also are very used, which are supported on of the pipes and can be transferred, however, generating a step and increasing the risk of accidents, beyond if attacking the environment for the wood to be a natural resources.
Also the construction of floor of truss of the order of international patent PCT/ES2001/000159 , that describes a platform consisting of the assembly between itself of two plates equipped with half complementary plug-in, as well as for a tubular and inferior formation in the opposing extremity to that one of the respective ways of assembly is known, the tubular formation determining a reinforcement of the respective plate, with the particularity of that one them plates, in correspondence with the respective one half of assembly, has a profile in inverted T that collaborates with the reinforcement of the plate. The platform determined for these two plates is made of aluminum and is supplemented by some inferior crosspieces, in which profiles rest, the closed extremities being with supports equipped with conventional hooks to hang the platform with respect to the structure of a truss. This model of metallic floor of truss is configured to receive for rabbet three types of plate composing the platform.
Although in the state of the technique it has a structure of floor of truss formed for plates that incase between itself, and two of them incase in each extremity of the tubular structure of the truss, still it has the necessity of a floor of truss formed for incased modules one to the other for the male system and female, the truss floor covering goes free of determined length, in way that the rabbet that it provides the male union and female also can be used for rabbet in the tubular structure of the truss.

SUMMARY OF THE INVENTION

It is an objective of the present invention to present a metallic floor for towers of composed truss of modules being understood: lateral structural profiles; heads; trellis-work; inferior crosspieces; central plate; rabbets; constraints; e jamb; where the modules of the related metallic floor can be incased one to the other for female the male system and to compose a floor of incased definitive length and when being between itself can be incased and be stopped in the tubular structure of the truss.

BRIEF DESCRIPTION OF THE FIGURES

Figure 1 - it is a upper/lower sight, perspective of the module of metallic floor in accordance with the invention.
Figure 2 - the invention incased in the pipe of the truss is a lateral sight of the module of metallic floor in accordance with.
Figure 3 - the invention is a perspective sight of the module of metallic floor in accordance with showing it in ready position for transfers (emendation).
Figure 4 - the invention in transferred position already (amended) for use is a perspective sight of the module of metallic floor in accordance with on tubular structures.
Figure 5 - it is a sight in detail showing punctures and the acts of drawing back applied to the central plate of the module of metallic floor of the present invention.

DETAILED DESCRIPTION OF THE INVENTION

The present invention will be described to follow in more details in set with the appended drawings in order to better clarify the functioning and the use of the related invention.
In Figure 1, to the right, lateral structural profile 1 in form of "U" of both sides of the module is shown to a perspective sight for the superior part of a module of metallic floor of the present invention, represented generically for letter M, contemplating, central plate 5 printed and hardened to guarantee rigidity and tack during the use of the metallic floor and to prevent accumulation of water on the floor, this central plate 5 I contend jamb 9, and heads 2 installed in the extremities of the module. The details of the stamping and the hardening of central plate 5 will be described more below. In an extremity of the module of metallic floor M, a head 2 it is installed over the same and in the other extremity another head 2 is installed under the same. Heads 2 are installed in opposing surfaces in the module of floor M to provide the rabbet between modules for female the male system and. In the extremities of lateral structural elements 1 rabbets 6 are fixed, also fixed to heads 2, destined to incase in the pipe of the truss.
In Figure 1, to the left, it is shown to a perspective sight for the inferior part of a module of metallic floor M contemplating inferior crosspieces 4, joined for its extremities to the lateral structural profiles 1, and joined trellis-works 3 to inferior crosspieces 4. The method of preferred union of all the parts composing the module of the present invention is by means of welding, however, the invention also contemplates the union for any another conventional method that provides the same resistance that the welding.
Figure 2 is a lateral sight of the module of metallic floor M mounted in the pipe of truss 8 (that it is not part of the invention). The module of floor M incases in the pipe of truss 8 by means of the rabbet 6 (four parts for module) and the locking in position enters the module of floor M and the pipe of truss 8 is made by means of constraint 8. This constraint 8 is confectioned in plate or bar of metal, any adjusted format, and fixed in inferior crosspieces 4 by means of welding or another way of conventional setting equivalent. Constraint 8 also provides locking enters two modules of floor M incased by female the male system and; in this situation constraint 8 functions to provide the locking against installed head 2 under the module of floor M.
Figure 3 is a perspective sight of the module of metallic floor M in ready position for transfers (emendation). In this position of emendation two rabbets 6 of the female extremity of the module of floor M if project for inside of lateral structural elements 1 of the extremity male of the module of floor M. At the same time, two rabbets 6 of the extremity male of the module of floor M if they project for inside of go between two rabbets 6 of the female extremity of the module of floor M, of this form providing the perfect rabbet enters both the modules of floor M for its respective extremities male and female. Jamb 9 serves mainly to strengthen the edge of the extremity of central plate 5, therefore, this central plate 5 in this point is vulnerable to knead for occasion of the hook between floor modules, being able to future provoke difficulty in the hook of the related modules of floor. Jamb 9 is located on the superior face of central plate 5 to allow the hook of rabbet 6. Jamb 9 also limits this hook of rabbet 6 and provides the continuity of the surface of the module of floor M.
Figure 4 is a perspective sight of the module of metallic floor M in transferred position already (amended) for use on tubular structures. Here two modules are incased by the female extremity of one of them in the male extremity of the other and stopped between itself for the operation of constraint 8 against head 2. The consecutive setting of two modules of floor M can be made of this form until reaching a maximum limit of 2,5 meters, that is the limit to provide the resistance required for the truss floor.
Figure 5 is a sight in details of the punctures and the acts of drawing back printed in central plate 5 to provide hardening of central plate 5, tack to the module of floor M and to prevent the accumulation of water in the module of floor M. Small punctures 10 are printed in general with 6,35 mm of diameter. The function of these small punctures 10 is to prevent the accumulation of water on the module of floor M. The short and long oblong the acts of drawing back, 11a and 11b respectively, are not pierced. In contrast these short and long the acts of drawing back are printed in high relief, with approximately 1 mm of height. The purpose of this high relief is to harden central plate 5 in the transversal direction, in the same way that a wavy plate would be more resistant of what a smooth plate. Punctures biggest 12 are pierced with the acted of drawing back edges approximately 1 mm for top of the surface of central plate 5. This the acts of drawing back above of the surface of central plate 5 serves to guarantee good tack to the footwear of the users of the truss and to reduce the risk of slipping of the staff used in the service.
The object of the present invention if differentiates of the floors of truss usually used by if being able you work with one same modulates of floor incased in the structure of truss by means of existing rabbets in the same. Also it is possible you work with transfers (amendment) of floor you modulate, where stops transfers it the floor functions in system of male and female (in each extremity) will be rabbet of modulates it in to other until forming the desired linear length in meters, since that if it obeys go exempts maximum of 2,50 meters.
The object of the present invention guarantees greater stability and security to the joint floor/structure, since to the transferred being, it if it keeps the same in level and with equal resistance of the proper floor.
Valley to stand out that the object of the present invention was developed using plates of some thicknesses, where in such a way we guarantee minor weight, low cost and greater resistance, since the biggest thicknesses are used only in the structural part, and the other parts with lesser thicknesses are worked and hardened.
While the invention was described with regard to preferred incorporation, it is not intended to limit the extension of the invention to the particular form. Alternatives, modifications and equivalents could inside be made of the spirit and target of the invention as defined for the claim appends.

Claims

Module of metallic floor for towers of truss, characterized in that it understands: joined lateral structural profiles (1) between itself by means of inferior crosspieces (4), these in turn on one to another one by means of trellis-works (3); heads (2), one of them installed over the module (m) in the male extremity of the module (m) and to other installed under the module (m) in the female extremity of the module (m); central plate (5) settled on the structural elements (2) and the inferior crosspieces (4), the central plate (5) having small punctures (10) printed, the acts of drawing back oblong (11a, 11b) in high relief and bigger punctures (12) with the acts of drawing back extreme edges above of the central plate (5); rabbets (6), two of them settled internally to the lateral structural elements (1) and a head (2) over the module (m), to external form the male extremity of the module (m) and others two of fixed them to the lateral structural elements (1) and a head (2) under the module (m), to form the female extremity of the module (m); settled constraint (8) on inferior crosspieces (4); e settled jamb (9) to the central plate (5); where the module (m) can be incased to the tubular structure of the truss for rabbets (6) and be stopped in position for the constraint (8).
Module, according to claim 1, characterized in that some modules (m) can be incased one to the other for female the male system and to compose a floor of truss of incased definitive length and when being between itself can be stopped in position one in relation to the other for the constraint (8).