ES1065310U - Scaffold (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Scaffolding, of the type comprising at least two collapsible trestles (1) on which there is at least one gangway (2) supported by hooks (21) at their ends and optionally protective rails, each constituted trestle (1) by two structures (11a, 11b), resting on the ground and articulated at the upper end and having opposite lower crosspieces (13), joined by at least one chain (15) or similar, to limit the opening of both structures (11a, 11b) and stabilizing their vertical arrangement, characterized in that the structures (11a, 11b) of the trestles (1) comprise one or more additional intermediate beams (14a, 14b), arranged at different heights, for the positioning of the footbridges (2) supporting the operator and the materials at different heights. (Machine-translation by Google Translate, not legally binding)

Description

Scaffold.

Object of the invention

The present invention relates to a scaffold removable of the type of constituted by easels on those that have horizontal support catwalks of the Operator and the materials to use.

Background of the invention

Currently, there is a wide variety of scaffolding for use in construction, both to achieve heights working too high to work at low altitude.

In the latter case the use of scaffolding is common constituted, at least, by two articulated easels, one catwalk or a plank that rests on the easels and some protection railings. Each easel consists of two flat structures, support on the ground and articulated in the upper end Each easel structure is usually formed by two legs joined inferiorly by a crossbar and superiorly by an articulation bar through a hinge with the structure  partner. Maximum opening or separation of the legs is limited by a chain or other similar element fixed to the crossbars bottom of each pair of legs.

The planks or walkways are placed on the upper joint bars, thus winning the height of the easel to work.

However, these scaffolds have several problems, since the increase in height they offer is unique and considerable, which makes it advisable to use a railing of security that is held unevenly over one of the gateways, if possible. In addition the operator depends on an assistant who supply the material from the ground, since the materials that load on the catwalk are low, at the height that conforms this one, and it has to bend down considerably. There are easels fixed that have an upper crossbar that is adjustable in height, but they are certainly unstable when the extension It is considerable.

Description of the invention

The scaffold, object of this invention, presents some technical peculiarities intended to offer the operator some Safer and more comfortable working conditions that optimize your job.

In fact, the scaffolding presents in each of the two structures that form an easel one or more crossbars additional intermediates, arranged at different heights in said structures In this way it is possible to place the walkways at different heights easily, simply by hooking the hooks on the appropriate additional intermediate crossbars, the easels being properly spaced. This is easy be able to place a wide work surface at the right height and even an upper walkway to deposit materials and work tools more at hand.

In turn, the joint is expected to upper is constituted by a tubular cross member in the part top of a stand structure, which is housed loosed inside another tubular crossbar, in the part superior of the other structure. The inner tubular crossbar presents its protruding ends laterally and where they find fixing sleeves and intern housing of a railing support bar.

This ensures that the stability of the gangway or iron placed at maximum height on the articulation is adequate, since it rests on a single element tubular. In addition, as the railing could be placed directly on the sleeves of the easel, it is more stable, enabling that the working height can be varied by changing the walkways without having to disassemble and reassemble the railing.

This railing comprises a support bar constituted by an elongated longitudinal element that presents, in proximity to one extreme, two prominences layered in "L" and oriented towards the upper end. These prominences They serve to fix a table, handrail or elements transverse at the top of the railing. In turn, the support bar presents, next to the lower end, a prominence layered in "L" and oriented towards its end bottom, for the support of the support bar on a board, handrail or lower optional lower safety element, the which can be extracted or omitted to facilitate the supply of material, by an assistant from under the scaffold, to the operator or worker who is on the scaffolding.

The scaffolding may comprise an element of locking of the railing support bar on the sleeve, such as a sergeant or analog, which allows the height setting of the railing.

Description of the figures

To complement the description that is being performing and in order to facilitate the understanding of characteristics of the invention, is attached herein descriptive a set of drawings in which, for illustrative purposes and not limiting, the following has been represented:

Figure 1 shows an elevation view of the Scaffolding in use.

Figure 2 shows a profile view of the Scaffolding of the previous figure.

Figure 3 shows a profile view of the scaffolding mounted at its maximum height and with the railing installed.

Figure 4 shows an elevation view of the Scaffolding of the previous figure.

Figure 5 shows an assembly detail of the railing.

Figure 6 shows a profile view of a folded scaffold trestle.

Figure 7 shows an elevation view sectioning of a detail of the installation of the walkways or plates on the easel.

Preferred Embodiment of the Invention

As can be seen in the figures referenced, the scaffolding consists of two easels (1) folding, walkways (2) or intermediate plates and optionally a railing consisting of support bars (3) of railing on which tables or handrails are arranged (4) transversal if deemed necessary for safety.

As depicted in Figures 6 and 7, each easel (1) consists of a pair of structures (11 a, 11 b) articulated at the top and respectively configured by longitudinal legs (12), preferably with  plastic support blocks, a lower cross member (13) next to the lower end and intermediate crossbars (14a, 14b). The lower crossbars (13) are joined by a chain (15) which limits the opening of the easel (1a, 1b), and the crossbars intermediates (14a, 14b) are arranged at different heights for the fixing the walkways (2) by hooks (21) existing in its ends The articulation of both structures (11a, 11b) is constituted by a tubular cross member (16b) in the upper part of a structure (11b), which is housed loosely inside another tubular cross member (16a), also arranged in the part superior of the other structure (11a). The tubular crossbar (16b) inside is extended by the outside of the mouths of the other tubular cross member (16a), extending at protruding ends, where the legs are welded (12), and where some fixing sleeves (17) and through housing of a bar railing support (3).

The railing support bar (3) is constituted by an elongated longitudinal element, which in proximity to one end has two prominences (31a) angled in "L" and oriented towards the near end, where they can fix the upper cross tables or handrails (4). Turn in proximity to the opposite end of the element longitudinal of the support bar (3), there is a prominence (31b) layered in "L", and oriented opposite, for the support on a table or handrail (4) lower than the limit of one adjacent walkway (2), as can be seen in figures 3 to 5.

As seen in Figures 1 and 2, the scaffolding may have a variable number of gateways (2), arranged supported on the different intermediate crossbars (14a, 14b) or on the upper tubular cross members (16a, 16b), defining  an operator's movement surface by means of two gateways (2) parallel and a deposit area for tools and materials raised by another gateway (2).

Once nature is sufficiently described of the invention, as well as a preferred embodiment, for the appropriate purposes that the materials, form, size and arrangement of the elements described may be modified, as long as this does not imply an alteration of the essential features of the invention claimed in continuation.

Claims (4)

1. Scaffolding, of the type comprising at least two folding stands (1) on which there are at least one gangway (2) supported by hooks (21) at its ends and optionally protective railings, each being constituted easel (1) by two structures (11a, 11b), of support on the ground and articulated at the upper end and which have opposite lower cross members (13), joined by at least one chain (15) or similar, to limit the opening of both structures (11a, 11b) and stabilizing their vertical arrangement, characterized in that the structures (11a, 11b) of the stands (1) comprise one or more additional intermediate crossbars (14a, 14b), arranged at different heights, for the positioning of the walkways (2) of support of the operator and the materials at different heights. 2. Scaffolding according to claim 1, characterized in that the articulation of the structures (11a, 11b) is constituted by a tubular cross member (16b) of the structure (11b), housed with the possibility of turning inside a tubular cross member ( 16a) of the structure (1la). 3. Scaffolding according to claim 2, characterized in that the ends of the tubular crossbar (16b) protrude through the ends of the crossbar (16a) and have fixing sleeves (17) and through housing of a support bar (3) of the railing. 4. Scaffolding according to claim 2, characterized in that the railing support bar (3) is constituted by an elongated longitudinal element that has prominences (31a) bent in "L" and oriented towards the upper end, for fixing tables, handrails (4) or transverse elements, and a prominence (31b) in "L" oriented towards the lower end, for the support of the bar on a table, handrails (4) or transverse element
lower.