ES1063463U - Scaffold system "H" (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Scaffolding system h consisting of tubular elements and removable and interconnectable floor plates that define a three-dimensional cross-linked structure characterized by the use of reinforced uprights (vertical boot foot) (2) which, mounted on four leveling spindles ( 1). (Machine-translation by Google Translate, not legally binding)

Description

H system scaffolding

Object of the invention

This report refers to a system of galvanized tubular scaffolding, conceived and realized according to the standardized measures required by European regulations in this regard, both in tube diameter and wall thickness thereof.

The reference scaffold, of type configuration Modular, it is used for mounting on various types of facades and different levels can be successively added according to the work requirements required.

The scaffolding presented, the result of practice in assembly, disassembly, use; and above all, observation of the indications of those responsible for the security of the works, presents obvious improvements in terms of safety, (in phases of use, assembly and disassembly), and in terms of manufacturing speed, also improved stability systems, and versatility of mounting possibilities.

Therefore the object of the invention is get optimize three important aspects based on the experience acquired in the sector, such as manufacturing, handling and safety, compared to other existing systems, The present invention seeks to optimize assembly speed, versatility in the use as auxiliary in the sector of the construction, repair and safety.

Background of the invention

As for the state of the art, they exist in the Multiple market and different scaffolding systems that are based on the frame as a key piece of the structure, both closed frame as open, some more versatile than others, but few are systems that tend to an efficiency capable of gathering speed in the assembly, versatility, and most importantly security both in the assembly process as work according to the normative

Currently the regulations govern with greater vigor, due to successive changes related to improvements in the aspect of safety, which is an essential element to carry out auxiliary construction work such as scaffolding. This implies investing in the innovation and optimization of these types of structures. The different systems of this kind of scaffolding are based on frames or frames with different configurations that incorporate vertical uprights and crossbars, floor platforms, diagonal bracing bars, horizontal safety rails and front and side rails. The main configurations of known frames
They are:

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Gantry type frame with upper crossbar prepared at the upper points for joining by spike.

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Rectangular frames

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Asymmetric side frames in two pieces prepared at their upper ends for joining by spike adopting said joint as joint.

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H-frames with ends upper prepared for spigot joint, adopting said joint as articulation

Each of the configurations presents different fixing elements for joining with elements of security such as railings. They each have different fixing elements for the link with the elements structural, which when operating reduce versatility and safety in the assembly / disassembly

The spikes that serve as a union are made with two different elements and the pressing technique used for its union it implies an increase of weight in the frame and a delay considerable in the manufacturing process.

Explanation of the invention.

Scaffolding for facades of this class is they ride generally starting with leveling and placement of vertical boot elements, then continue with the H frames, at which time, when accessing the floor platform, the operator is always protected by the verticals of the last frame, which allow the previous placement of railings before access this level, due to the H frame configuration itself. This is composed of two vertical uprights and a crossbar. The vertical uprights have edges or lugs (hereinafter  keys) to fix the horizontal guardrails on the level of scaffolding the operator is in, which are Generally circular tube. These railing elements serve to reduce the danger of falling.

Frame scaffolds of any kind have of articulated cotter pins for railings horizontal, being these articulated keys not so safe in as to its possible lack of assurance as those proposed.  The proposed ones are designed to avoid, either by dirt or by typecasting, the lack of accidental assurance of some horizontal railing, very common in construction by accumulation of dirt from falling debris materials, mortars, etc. that prevent the proper functioning of the traditional ones, and that They have caused some accident.

The traditional keys mostly consist of metal parts composed of several pieces, whose safety element is an articulated piece operated by the action of gravity. This induces the assembler to use additional time, because during disassembly, the articulated part has to be moved by the assembler first one end then the other, this form of execution reduces versatility and increases assembly / dismantling execution time.
mounting.

The anchor key system has been devised, (hereinafter key guide), other than articulated, consisting of a metal piece of steel with a single piece striated profile used for fixing horizontal railings of protection in the frame.

With it you can improve and streamline the manufacturing process, because the articulated system has to galvanize the frame independently of the mobile key, to later in workshops, again, proceed to the placement of this one, by means of rivet or pin, with the consequent loss of time, apart from the lack of proper galvanization of the rivet or pin by its own configuration. In the case of the system proposed the guide key is welded to the vertical upright of the frame H by rigid union, without the need for further treatment, and being  galvanized along with it.

This type of fixation is advantageous because it does not count with movable or articulated parts and for providing ease in surface treatment reducing manufacturing costs and operation.

This system allows the use of horizontal rails with a round or square anchor hole, with dimensions depending on the height of the guide key. It is assembled and disassembled previously from a safe position of the lower level of work together with the H frame. The assembler is already protected when it goes up to the next level, allowing a fast work and
sure.

The advantageous improvement of this process of scaffolding fixation in which not only the fault is minimized of restriction of the guardrail without the consequent danger of accident but also the speed and simplicity of the fixation, which follows from claims 5 to 9. The coupling between the railing and the guide key is configured as so that it can be decoupled without the use of a tool some, bypassing articulated pieces and reducing displacement from the assembler to the end to be disassembled, without it having to make the return path without protection, because with the key guide can perform this operation from the opposite side. This shape is simplified and the disassembly process is accelerated.

This advantageous system also provides a added security configuration that does not allow to separate the guardrail when faced with an inconvenience such as the one produced by pulling the horizontal before an attempt of fall, the railing always held together with the guide key. If the railing is in place, the guide key is working, in the case of the mobile phone it can be placed the railing but, not activated the safety system (the articulated element, by typecasting).

During the assembly of the different levels, to as higher levels increase, or there are vain In the interior area of the scaffolding, adequate measures are required Additional security. With the invented system, it is solved this demand, adding possibility of placing railings additional, as a consequence fixing elements are added as provide for the characteristics of the claims. Thus two railing elements are added on the same level (in the area interior) thereby increasing the internal lateral protection and external scaffolding both in the level of work and in the level step stairs.

Scaffolding for facades of this class is they mount successively erecting the different levels of the scaffolding using frame H as the main element, in the process of assembly The current systems use to couple the frames with each other a tubular rod or rod of smaller diameter fixed to the upright, using a welding or pressing system to obtain a connecting pin. This rod or pin must be previously cut, round at its upper end to facilitate the insertion of the upper part, and in turn, represents an increase of weight. The pin plugs into the lower ends of the frame next superior. Procedure not very practical in manufacturing for using different material and more investment time in the upright brass joint, to avoid this, the technique of axial extrusion to obtain the connecting pin reducing Times and material.

According to the experience in this kind of scaffolding the H frame undergoes deformations due to handling and different loads suffered by the vertical uprights of the H frame, to reduce deformations, robust pipe braces are used circular that replace the existing ones mounted between the crossbar and the amount of the frame, achieving greater structural rigidity, and according to the mounting possibilities, the braces can be used as a mooring element, because they are made with the same structural tube that frame H.

Another essential element in the safety of this Scaffolding class is the side railing, whose function unifies the double horizontal railing, and lateral skirting, closing. In Currently there are side railing systems with or without Built-in skirting board, which suffer from real security in terms of robustness, of which it is proposed, as a totally new design and effective, based on the reinforced lateral axis from which the others start Railing pieces. It is introduced like this, the side railing with skirting board, which guarantees robustness necessary to support large efforts without bending due to its axis and its two points of anchorage.

With the new design based on a side frame round tube, on which the intermediate railing is welded, and on which the skirting board is born (double for consistency), avoid the problems of possible bending before a possible fall of a person and it becomes a characteristic piece of this type Scaffolding Compared to other systems that separate skirting boards lateral side rails, making these two or three independent parts, it is clear the improvement of the uniformity of the piece for assembly, and for transport and cutting. Equally with the current design the total weight of the piece is reduced with respect to others with similar functions, as well as the least amount of welding that needs a piece based on a piece of frame which are born two additional pieces (skirting board and railing intermediate).

As for the stability of the scaffolding, these are subject to vulnerability and incidents in the area lower, by crosswalk, hit against the bases of various objects, vehicles, etc., so it is necessary to improve the stability and robustness of the lower parts of the scaffolding

There are currently various systems of support on the ground, being one of them usual in these scaffolding a vertical starter foot that is assembled with the first of the herringbone connection frames, enabling the underpass to a approximate height of two meters. But this structural element (vertical foot), suffers from sufficient rigidity to guarantee stability in case of minor, usual blows of all the structure they support. Therefore it is recommended as part of the present invention the reinforcement of the right foot by adding resistance and lateral stability with a vertical welded on the body of the foot boot, making them a solid and reliable piece on the which rest the entire upper structure.

Point out that at the time of writing this request the petitioner of the present invention is unaware of the existence of the systems introduced in the design of this class of scaffolding with some similar scaffolding system, which by number and wingspan, make this a unique scaffold for use as a facade scaffolding, the result of experience in the sector.

Description of the drawings

The characteristics of the inventive proposal in an illustrative way through the plans of drawings whose references are:

Figure 1, plane illustrating an isometric view of the basic scheme of the scaffolding in assembly phase according to the invention

Figure 2, schematic representation of the boot and its reinforcement

Figures 3a and 3b show a front view of the H frame with robust bracing and adding elements of fixation on the vertical support elements, and detail of the fixing on the braces of the mooring element and the element that emulates visor support.

Figure 4, detail view of the coupling between vertical uprights and the connecting pin, obtained by forming technique from the same tube.

Figure 5, details of the configuration of the fastening device for clamping rails horizontal with lugs both round profile and rectangular.

Figure 6 shows a perspective of the element of side railing safety according to the invention

Preferred embodiment

Figure 1 illustrates an isometric perspective of a scaffolding for facades in the lifting phase. The element of most important support on which the entire structure is mounted is the boot foot (2) of robust structure as shown in the figure 2. These support elements, assigned at the lower level of the scaffolding, are placed on the bases or leveling spindles (1), arranged in a rectangular shape on four points on firm ground, so that they are all on the same geodetic level. Act then, the horizontal railings (4) are installed at the points fixing (11). Vertical assembly continues with placement of the H frames (3) on the starting feet (2). In this step from the work one end of the railing (4) is inserted by means of a lug with hole to position 11, with the guide pins that they have the H frames. (3) An articulated joint is obtained in a way that the frame assembly H and railing are raised to mount on the starter foot (2) fixing the frame H (3) by means of the clamp (12) that has the starter foot (2). The other end of the railing is inserted to position 11 'with frame H (3') parallel to the first one installed, the set is lifted over the other pair of boot feet so that a protective railing for mounting the immediate upper level at a suitable height. For subsequent assembly work, this step is repeated along the scaffolding. It is worth mentioning the functionality in fixing the railings with lugs circular or rectangular giving full compatibility to both types railing (4). The module is complemented with elements of stabilization or diagonal braces (5) that give rise to formation of a bearing three-dimensional framework assigned as base module of the M0 level, from which the following along the facade.

Then proceed to assemble the platforms of ground (7) and step platforms to access the level M1, the sides are protected by installing the elements of side railing (6), complete mounting the rails protectors to obtain according to figure 1 three rows of railings in the respective M1 work level so that Add greater security for operators. Continuing with him procedure is placed another diagonal brace (5 ') intended for ensure horizontal bracing that allow stability structural as the upper levels are built. Fits note that the diagonal elements (5) have at their ends some circular lugs for compatibility with devices fixing joints (10). Mounting level M2 and higher it is done with the placement of H frames (3) on the frames already mounted from the lower level. The start is recommended by Scaffold ends, following the same procedure as the placement of the frames at the M1 level.

Finally the structure is fixed to the facade by placing the mooring (16) to the brace (15) of the frame H (3). The mooring that has a hook is hooked to the eyebolt anchored on the facade. The arranged mooring variant is 45 ° with respect to the eyebolt hooks, being essential in this case the brace that stiffens the H frame. The symmetrical brace that has the frame H is used for the installation of a beam visor (17) that acts as a plate holder whose function is to avoid Falling work objects to the sidewalk or driveway (visors).

Figure 2 shows a perspective of the foot of boot (2). The piece (8) is the base element on which it lift the scaffold, the reinforcing part (9) together with the piece (12) of clamp provide rigidity to the assembly of the elements (2) (3) of vertical uprights. The piece (8) emulates an upright vertical outer side of frame H (3).

Figure 3 shows the main element of the scaffolding, which is used for scaffolding. How part of the claims, a front view of the H frame (3) with their respective fasteners, (11) that allow the installation of three railings on the external side (14) of the vertical upright, and two railings on the inner side (13). The form of execution of the elements (16) and (17) allow the coupling with the braces (15) using fixed clamps (18).

Figure 4 shows the coupling between uprights (8) - (13) (14), whose connecting pin (19), obtained by shaped, allows a better settlement of the upper upright, much more comfortable and safe to have at the base of the spike a flat surface that allows full contact with the base of the upper amount

Figure 5a illustrates the design of the guide key (20) that is part of the vertical uprights (8) or (13) or (14), and the way in which the safety rails (4a) and (4b) they can be coupled with them (figure 5b).

This coupling procedure represents a innovative scaffolding idea, because a union is adopted by hitch. The piece (20) and the piece (8) or (13) or (14) are glued by means of a rigid union.

As shown in Figure 5c, both the geometry as the design of the fixing piece are designed in such a way that the railing element (4) is inserted using movements of alternative tilting, plus a translation movement horizontal. The idea is in not being able to insert the railing simply with a linear translation movement. In the same way to separate the railing (4) movements of alternative tilting, plus a translation movement. For Obtain these restrictions, the guide key (20) has some outgoing and incoming tabs on the upper side (21) and on the lower (22). For this purpose, on the outgoing tabs Lower has a few small stops added (23). In the First lower flange a curved groove (24) is adopted. This special configuration adopted in the guide key has a powerful consequence, of preventing the exit by accident of the railing, when the horizontal is in the last step, increasing security against accidental separation. Yes the first two restrictions (figure 5c 'and figure 5c'), which prevent the separation of railing will fail, the third step (figure 5c '') makes it impossible the separation of both elements. Then the generous element that has this invention is to ensure that carelessness or accident is can release the railing, because it needs a gradual movement, which  Instantly it is impossible to fail by mistake.

Another objective in the configuration adopted to the invention is to achieve compatibility in the use of railings with rectangular lugs (25) and with lugs circular (26).

Figure 6 represents the side railing with skirting board, another security element that introduces a new design and innovation based on a side gantry (24) of tube round. A cantilever beam (25) is rigidly attached to it  free end is intended to insert the guide key as part of the upright (3) inside the tube (25), so similar to a male female union. The other end of the beam cantilever has a rigid connection with the separator (26) through the side gantry (24), in turn connected with a clamp (12) for embedding in the upright (3), at which time we have a degree of freedom of vertical translation for obtain the appropriate height of the side railing with respect to the platform floor.

The lower end of the side gantry (24) is rigidly attached to the skirting board (27) (double for consistency), It prevents bending problems. This system differs from other systems that separate side skirting from side railings making independent parts that make transportation difficult and They delay assembly. This security element is made very easy to transport by its low weight, as well as facilitates assembly and exploded view It is characterized by its robustness, making it a characteristic piece of this type of scaffolding.

The invention and the examples described in what antecedents can be put into practice trying variants of according to the imaginative, and according to your spreadsheet, without change the functionality for which the invention was conceived.

Claims (9)

1. Scaffolding system H formed by removable and attachable tubular elements and floor plates that define a three-dimensional bearing cross-linked structure characterized by the use of reinforced uprights (vertical starter foot) (2) which, mounted on four leveling spindles ( one). 2. Scaffolding system H characterized by the assembly of the railing elements (4) that at the same time that the frames H (3) are raised allowing the operator to always be protected when accessing the following levels. 3. System H scaffolding according to claims 2 to 4, characterized in that the railing element (4) joins the upright (8) or (13) (14) by the piece (20) rigidly bonded, provided with projecting flanges and upper and lower recesses attachable with the railing element (4) which has lugs at its ends for insertion in the guide key (20). 4. System H scaffold according to claim 5 characterized by the flat part (20) having two upper projections (21) and two lower projections (22) (guide key), which in turn has the two lower projections of two small protrusions added, and which also has a notch (24) in a first curved shape. 5. System H scaffolding according to the preceding claims characterized in that the work level has three railing elements (4) on the outer side and two railing elements (4) on the inner side. 6. System H scaffold according to claim 2 characterized by the brace (15) rigidly attached to the crossbar and the uprights of the frame H (3), to support mooring elements (16) and / or elements acting as a visor (17). 7. System H scaffolding according to claim 10, characterized in that the connecting pin of the uprights (8) (13) (14) allows an effective plug-in connection from the forming of the same tube. 8. System H scaffolding according to the preceding claims characterized in that the frame H (3) can accommodate a side railing (6), whose final position is achieved by inserting the cantilever beam (25) into the guide key (20) being careful to do so on the outer part of the scaffold, the other end is fixed to the clamp on the vertical upright (13) of the frame H (3), this element being above the guide key of the inner part of the scaffolding. 9. System H scaffolding according to claim 10, characterized in that the mooring element (16) can be made in an angular position of 45 ° from the frame hinge H, therefore the anchor works both against vertical and horizontal loads, essentially useful if desired reduce loads to the ground.