ES1068949U - Perfected scaffolding (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Improved scaffolding, of the type that includes two lateral frames formed by two beams and several crossbars, which are joined with oblique stiffening braces in the assembly or assembly position, with a horizontal and movable horizontal board positioned at the desired height, laying between two homologous crosspieces, and there also being a mobile horizontal brace with handrail functions, characterized in that the oblique braces (5) of stiffening, defined by two bars articulated in a vane, as well as the horizontal brace (7) with handrail functions, have their ends provided with an orthogonal lug intended to be inserted in the hole (11) selected from those existing on the side of the beams (3) of both frames (1, 2), and also including separate bent supports (12) articulated in respective transverse axes and coaxial to the lug, which are capable of partially hugging the adjacent stringer (3) in an angular position of ca it is by gravity preventing the accidental exit of the brace (5, 7), while being raised angularly allows the exit or entry of the brace (5, 7), to disassemble or assemble the scaffold. (Machine-translation by Google Translate, not legally binding)

Description

Improved scaffolding.

Object of the invention

The present invention, as expressed by the set forth in this specification, refers to a scaffold perfected, which has significant advantages over the that exist today and that can be considered their kind.

This type of scaffolding consists of two bracing side frames with stiffening braces and which also include a safety guardrail for the user uploaded to the plank or horizontal board lying between two even crossbars of the side frames.

It is an object of the invention to facilitate the Scaffolding assembly and also provide high security in the anchors so that they are perfectly locked without possibility that any armed element is accidentally left.

Background of the invention

At present the oblique braces that are mounted between the racks for the bracing of these and stability of the scaffold, are determined by bars provided with holes through which respective bolts are incoming linked to the stringers of said side frames, then avoiding its exit through fin pins or other devices similar mounted for this purpose, which entails work complicated and of course an unreliable assembly system.

Description of the invention

In general, the perfected scaffolding which constitutes the object of the present invention, even though it is the type formed by the two side frames defined by two vertical stringers and several horizontal crossbars laid among them, it has the peculiarity that the latter are tubular and cross the beams to offer their mouths to the Exterior. In these mouths penetrated the intended lugs orthogonally at the ends of the oblique braces of stiffening of the scaffolding, as well as the horizontal brace with railing function, existing in these ends two supports layered articulated in the geometric axes themselves that materialize said lugs, said supports being susceptible to partially embrace the adjacent stringer in an angular position obtained by gravity, while to achieve extraction of the brace it is necessary to raise the support angularly so that the angled end that hugs the crossbar does not overlap with it. From This way you easily get the safe position by preventing the accidental exit of the tie.

On the other hand, the mobile board that stands at the desired height, lying between two even crossbars of the side racks, includes at its ends two pairs of plates in "L" collateral and solidarity with them so that they present a free wing directed downwards butt on the outside of the corresponding crossbar, thus immobilizing the board.

Linked to each of these plates in "L" is arranged a lock trigger that is articulated to the be materialized by a lever that oscillates through one of the ends at a midpoint of the "L" plate, dropping its other end by gravity on the inside of the crossbar corresponding to the side frame, having a lower tooth that partially hugs the aforementioned crossbar retaining it simply by gravity.

To disassemble the board it is necessary to turn slightly the trigger to release the tooth and raise the board.

It is also provided that the scaffolding side frames are the stretches of an extendable ladder by incorporating at the upper end of one of them the flanges or clamps that hold the stringers of the other frame, the latter counting lowerly with the connection hooks in the crossbar selected from bottom frame or floor support. The lower frame also has a transverse bar with two cantilever portions provided with end-of-ground support tacos, to increase the safety of the ladder and thanks to which also greater security is obtained in the position of
scaffold.

To facilitate the understanding of characteristics of the invention and forming an integral part of this Descriptive report, accompanying some sheets of plans in whose figures, with an illustrative and non-limiting nature represented the following:

Brief description of the drawings

Figure 1.- It is a perspective view of a perfected scaffolding, object of the invention.

Figure 2.- It is a partial view, in perspective, of the same scaffolding and specifically of the area where the oblique locking braces in the mounting position.

Figure 3.- It is a partial perspective view, of one of the ends of an oblique tie connected to a frame beam and locked with the bracket angled correspondent.

Figure 4.- It is a partial perspective view, of one of the ends of the horizontal board to observe the point where one of the locking triggers is located.

Description of the preferred embodiment

Referring to the numbering adopted in the figures, we can see how the scaffolding perfected that the proposed invention, is formed as seen in figure 1, by two side frames (1) and (2) materialized by two stringers (3) and several crossbars (4) of tubular structure. Both racks lateral (1) and (2) are properly braced with the braces obliques (5) (in this example in number of two and joined articulated in the form of a blade) to achieve stability due, and the board (6) lying between the side frames (1) and (2) resting on the crossbars (4) selected to the desired height There is also a horizontal brace (7) in the upper part, which acts as a railing and is always located at certain distance from the position occupied by the horizontal board (6).

In this exemplary embodiment, the racks lateral (1) and (2) are respective sections of a ladder extensible, as shown in figure 1 the frame (1) superiorly it has the flanges (8) or clamps of the stringers (3) of the other sliding frame (2), and the latter it has the two hooks (9) of connection in the crossbar selected from the side frame (1).

To increase the stability of both scaffolding as with the ladder, the side frame (1) has lower of a crossbar (10) whose ends are cantilevered and provided with two support tacos on the floor.

With this structure the scaffolding can become on stairs and vice versa.

One of the basic characteristics of the invention is determined by fast and safe anchoring means for the mounting of the braces (5) on the blade and the upper brace (7) or railing, or, for the disassembly of the scaffolding.

In figures 2 and 3 you can see in detail the structure of these anchoring means, defined by a stud orthogonal at both flattened ends of the braces (5), or (7), which is introduced in the corresponding hole (11) selected from the stringers (3), these holes materialized (11) in this case by the mouths of the crossbars themselves (4) that emerge on the other side of the stringers (3).

In addition to this busty that is observed with line of  strokes in figure 3, there is an angled support (12) (see figure 3) which is rotating around a screw-shaft (13) coaxial with said stud but that rotates outside the tight. In this figure 3 the layered support (12) occupies severity the locking position of the tie rod (5) or (7) because it is not allows parallel displacement of the tie rod to cause exit of the pin, since said angled support (12) has a section (14) transverse and another end (15) that turns in parallel to partially embrace the crossbar (3) avoiding accidental exit of the strap (see also figure 1).

To disassemble the scaffolding, the same as for mount it, the support (12) must be raised angularly so that the extreme pin or final section (15) of the double bend that experience the support (12), do not overlap with the crossbar (3) and then the strap (5) or (7).

Another feature of the invention can we see it in figure 4 and it is the way to ensure the stability of the horizontal board (6) that rests on the two crossbars (4) selected counterparts from the two racks lateral (1) and (2). It is carried out by the plates in "L" (16) inverted, in solidarity with the sides of the board (6), whose free branches descend outside the crossbar (4) corresponding avoiding slippage. As an element of security that complements this retention is provided a trigger lock (17) defined by a lever that oscillates at a midpoint (18) of the "L" plate (16) and which is a carrier of a tooth (19) lower which is placed by gravity below the crossbar (4), so that it is partially embraced and the board (6) totally immobilized There is a top 20 on the plate in "L" (16), so that the projection (21) of the trigger (17) get to stop with him when you want to disassemble the scaffolding, or to change position in height to the horizontal board (6). This small turn is enough to release the tooth (19) with respect of the crossbar (4).

Claims (4)

1. Improved scaffolding, of the type that includes two lateral frames formed by two stringers and several crossbars, which are joined with oblique stiffening braces in the assembly or assembly position, with a mobile horizontal board and positionable at the desired height, laid between two homologous crossbars, and there is also a mobile horizontal brace with railing functions, characterized in that the oblique stiffening braces (5), defined by two articulated vane bars, as well as the horizontal brace (7) with railing functions, have its ends provided with an orthogonal stud intended to be inserted in the hole (11) selected from those existing on the side of the stringers (3) of both frames (1, 2), and also including two angled supports (12) articulated in respective transverse and coaxial axes to the nipple, which are capable of partially embracing the adjacent stringer (3) in an angular drop position by gravity preventing the accidental exit of the tie rod (5, 7), while being raised angularly allows the exit or entry of the tie rod (5, 7), to disassemble or assemble the scaffolding. 2. Improved scaffolding according to claim 1, characterized in that the holes (11) of the stringers (3) are materialized by the mouths of the tubular crossbars (4) that emerge outside the stringers (3). 3. Improved scaffolding according to claim 1, characterized in that the horizontal board (6) includes at its ends two pairs of inverted "L" plates, with a wing directed downwards butting on the outside of the crossbar (4) corresponding immobilizing linearly the board (6), and as many pairs of locking triggers (17) in the direction of elevation thereof, defined by an oscillating lever at one end at a midpoint of the "L" plate (16) and whose other end has a tooth (19) that partially hugs the aforementioned crossbar (4) supporting the board (6), blocking in this position by gravity. 4. Improved scaffolding according to claim 1, characterized in that the side frames (1, 2) of the scaffold are the stretches of an extensible ladder, one of which has a long crossbar (10) supporting the ground and a clamp or flange (8) at the upper end, and the other with the two hooks (9) connecting with the crossbar (4) selected from the first frame (1).