ES2882589T3 - Fall arrest safety structure for formwork with load-bearing panels for slabs - Google Patents

Abstract

An anti-fall safety structure (10) for formwork with load-bearing panels for slabs comprising: - A load-bearing panel (11) comprising at least two lateral longitudinal support profiles (12, 13) mutually connected by transverse elements (14, 20), - At least two support posts (15, 16) for one or more fall protection elements (17), - For each post (15, 16), a post support bracket (22, 18), provided of fastening means (19) for reversible coupling with an external transverse element (20), - Said fastening means (19) having a wedge-type closing system (21), - Said post support clamp (22) comprising, with respect to a configuration for use, a longitudinal load element (24), the fastening means (19) being fixed on the longitudinal load element (24), said fastening means (19) comprising: - A plate of lower support (27), which is supported by a horizontal tubular segment (28) is fixed to the longitudinal load-bearing element (24), - and the wedge-type closing system (21), which is fixed in an upper region of said longitudinal load-bearing element (24), characterized in that said panel of (11) is provided with lower reinforcing bars (35), which are arranged below and transversely with respect to the transverse elements (14, 20) and said support plate (27) is provided in an upper region with two centering elements ( 29), which are adapted to be arranged on the sides of a reinforcing bar (35).

Description

DESCRIPTION

Fall arrest safety structure for formwork with load-bearing panels for slabs

The present invention refers to an anti-fall safety structure for formwork with load-bearing panels for slabs.

The structure has the objective of building a vertical barrier to be applied to formwork systems in order to create adequate operating conditions during the assembly of said structure.

It is known that formwork systems for slabs can be composed of elements such as vertical supports, support heads to be applied to their upper end and load-bearing formwork panels that are directly mounted on the support heads.

Known vertical protection systems applicable to formwork slabs are currently made up of elements that are generally applied to load-bearing beams or formwork panels. EP 1944430 A2 shows a fall arrest safety structure with the characteristics of the preamble of claim 1.

A drawback of systems of this type known up to now is constituted by the fact that they can be moved only with mechanical and not manual means, which slows down the operations to install such systems in a work, consequently entailing an extension of the times of construction and therefore of the costs for the construction company.

Another drawback of systems of this type known up to now is constituted by the fact that they can be assembled in the slab formwork system by virtue of mechanisms that are often complicated and cumbersome from the practical point of view, which slows down the installation operations of these systems on site, consequently entailing an extension of construction times and therefore of costs for the construction company, in addition to increasing the risk from the point of view of correct installation and thus compromising the level of safety assured for workers.

A final drawback of systems of this type known up to now is constituted by the fact that they have a rather limited field of application, since they do not offer a complete technical solution from the point of view of vertical protection because it is normally necessary to complete the protection on each side of the formwork system with other systems that are expensive and slow to run.

The objective of the present invention is to provide a fall-prevention safety structure for formwork with load-bearing panels for slabs that has a reduced footprint and weight and can be handled not necessarily with mechanical lifting means.

An important object of the present invention is to provide a fall arrest safety structure that is very simple and can be handled with mechanisms that are easy to handle.

Another object of the present invention is to provide a safety structure that allows for multiple applications, specifically to provide a complete vertical protection that allows to protect any side of the formwork system with load-bearing panels and therefore to work insurance for workers. workers in all aspects.

This objective, as well as these and other objects that will become more apparent below, are achieved by means of a fall protection structure for formwork with load-bearing panels according to claim 1.

Other characteristics and advantages will be better apparent from the description of a preferred but not exclusive embodiment of the fall arrest safety structure according to the invention, illustrated by non-limiting example in the accompanying drawings, in which:

Figure 1 is a perspective view of a formwork system with two safety structures according to the invention;

Figure 2 is a perspective view of a load-bearing panel of the fall arrest safety structure according to the invention;

Figure 3 is a perspective view of a component of the security structure according to the invention in a first example of its embodiment;

Figure 4 is a front view of the component of Figure 3;

Figure 5 is a view of a detail of Figure 3;

Figure 6 is a front view of the component of Figures 3 and 4 applied to the panel of Figure 2;

Figure 7 is a view of a component of the security structure according to the invention;

Figure 8 is a side view of the component of Figure 7;

Figure 9 is a perspective view of another component of a security structure according to the invention;

Figure 10 is a perspective view of a portion of a security structure according to the invention. With reference to the figures, a fall protection structure for formwork with load-bearing panels for slabs is generally designated by the reference number 10 in a first example of its embodiment.

The security structure 10 comprises:

- A loading panel 11, comprising two lateral longitudinal profiles 12 and 13 to rest on loading heads of a corresponding number of supports, to be understood as being of a type known per se, the lateral profiles 12 and 13 being mutually connected by transverse elements 14 and 20, - At least two support posts 15 and 16 for one or more fall protection elements for example a grating 17,

- For each post 15 and 16, a post support bracket 22 and 18, provided with fastening means 19 for reversible coupling to an external transverse element 20 of the panel 11,

- The fastening means 19 are provided with a wedge-type closing system 21.

Specifically, post support bracket 22 and 18 is clearly visible in Figure 3, showing by example one post support bracket 22, the other post support bracket 18 being understood to be identical.

The pole support bracket 22 comprises, with respect to a configuration for use, a load-bearing longitudinal element 24 constituted for example by a tube with a quadrangular cross-section 25 of which a coupling tube 26 for example having a round cross-section, for a post 15 and 16 protrudes upwards.

The fastening means 19 are fixed on the longitudinal load-bearing element 24.

The fastening means 19 comprise

- A lower support plate 27 that is supported by a horizontal tubular segment 28 that is fixed to the load-bearing longitudinal element 24,

- And the wedge-type closure system 21, which is fixed in an upper region of the longitudinal load element 24.

The bearing plate 27 is designed to rest against the bottom 30 of a lateral cross member 20, while the wedge-type locking system 21 acts against the upper surface 31 of the lateral cross member 20, as shown in Fig. Figure 6.

In particular, the cargo panel 11 is provided with lower reinforcing bars 35, arranged below and transversely to the transverse elements 14 and 20, and the support plate 27 is provided in an upper region with two centering elements 29 adapted to be arranged in the sides of a reinforcing bar 35, as shown in Figure 6; the centering elements 29 can be made up of two tubular segments having the section height of the reinforcing bar 35.

The wedge-type closing system 21 comprises a tubular guide body 32 constituted, for example, by a tubular segment having a quadrangular cross-section and a vertical axis in the configuration for use, and a translation slider 33 clearly visible in Figure 5 arranged to slide vertically in the tubular guide body 32.

The translation slider 33, constituted for example by a tubular segment having a quadrangular cross-section, supports at the upper end a holding plate 36, it is adapted to be pressed against the upper surface 31 of the lateral transverse element 20.

The downward movement of the translation slider 33 is provided by a wedge-shaped body 34, clearly visible in Figures 3 and 4, inserted in a transverse direction with respect to the vertical direction of translation of the slider 33, the body with wedge-shaped 34 being inserted into corresponding passage openings formed respectively in the guide body 32 and in the slider 33.

In a manner known per se, the inclined side of the wedge-shaped body 34 acts by pushing against a corresponding edge or edge 37 of the passage opening 38 in the translation slider 33, while the opposite horizontal side of the wedge-shaped body wedge 34 rests against the upper edge or edge 39 of the passage opening 40 in the guide body 32.

During assembly, therefore, the wedge-shaped body 34 is in a partially withdrawn configuration and the translation slider 33 is in a free configuration and can be raised manually during the engagement of the pole support bracket 22 with a side cross member 20; when the clamp 20 is correctly positioned on the cross member 20, as shown in Figure 6, hitting the wedge-shaped body 34 pushes the slider 33, with the clamping plate 36 against the upper surface 31 of the cross member side 20, causing the fastening means 19 to close.

The coupling tube 26 is hooked on the post 15 and 16.

Post 15, by way of example, is shown in Figure 9, it being understood that the other posts 16 are identical.

Post 15 comprises, in the example described here, a tubular body 45; the tubular body 45, for example having a quadrangular cross section, is provided on a first side with a lower resting support 46 for a net or grid 17, or other similar fall protection element, and on a second side with three supports with L-shaped, respectively 47, 48 and 49, which are fixed to be spaced apart in a vertical direction, each cooperating with a symmetrical L-shaped support of another post 16 for the support of a fall arrest plate 117, 117a and 117b such and as shown in Figure 1.

At the upper end of the post 15 there is a latching protrusion 53 for the latching of a corresponding upper portion of a grid 17.

A fall arrest grid 17 is provided with a central vertical mesh 55, a lower sloped flap 56, to rest on the support 46, and an upper sloped flap 57 to engage with the engagement protrusions 53 of the various posts 15 and 16.

A foot retaining plate 50 is interposed between the grid 17 and the posts 15 and 16 and rests on the supports 46.

In a preferred embodiment of the security structure according to the invention, shown in Figures 1, 7 and 8, and designated here with the reference number 110, the posts 115 and 116 in Figure 1 are identical to the posts 15 and 16.

Posts 115 and 116 are exemplified in Figure 1 as support fall arrest plates 117, 117a and 117b, by virtue of the different arrangement of post support brackets 122 and 118 from the arrangement of identical posts 15 and 16 on the other. the exemplary embodiment of the invention described above.

By rotating the mounting configuration of posts 15 and 16 by 90°, L-shaped brackets 47, 48 and 49 are in fact available to support plates 117, 117a and 117b as can be seen for posts 115 and 116 in Figure 1.

In this preferred embodiment of the invention, each post support bracket 122 and 118, for example the bracket 122 of Figures 7 and 8, comprises, with respect to a configuration for use, a longitudinal load-bearing element 124, constituted by for example by a tube with quadrangular cross section 125 from which a coupling tube 126, for example having a round cross section, for a post 115 and 116 protrudes upwards.

The other fastening means 119 are fixed on the longitudinal load element 124.

The other fastening means 119 are adapted to act by closing in a vertical direction as in the first embodiment of the invention.

The other fastening means 119 comprise:

- A first resting body of the lower plate type 127, which is supported by the longitudinal load-bearing element 124 and is adapted to rest against the lower load 160 of a lateral longitudinal profile 12 or 13 of a load panel 11;

- And a wedge-type closure system 121 that incorporates a portion of the load-bearing longitudinal element 124, the wedge-type closure system 121 moving a second plate-type body 163 against the upper surface 131 of the lateral longitudinal profile 12, as as shown in Figure 8.

The wedge-type closing system 121 comprises a tubular guide body that is constituted, for example, by the same tube with a quadrangular cross section 125 of the longitudinal load element 124, having a vertical axis in the configuration for use, and a translation slider 133 , arranged to slide in the quadrangular tube 125.

The translation slide 133, constituted for example by a tubular segment having a quadrangular cross-section, supports at the upper end the second plate-type body 163.

The second plate-type body 163 is supported by two bars 164 for connection to the slider 133. The first plate-type body 127 is constituted, for example, by a metal plate.

The slider 133 also supports a spacer 165 adapted to rest against the external vertical surface 166 of the lateral longitudinal profile 12.

The movement of the translation slider 133 is provided by a wedge-type body 134, inserted in a direction transverse to the direction of translation of the slider 133, the wedge-shaped body 134 being inserted into corresponding passage openings formed respectively in the guide body, that is, the quadrangular tube 125 and in the slider 133, in a similar way to what has been described above for the previous embodiment of the invention.

In practice it has been found that the invention achieves its intended aim and objects.

In particular, the invention provides a fall arrest safety structure with reduced size and weight, which can be moved not necessarily with mechanical lifting means, since the pole support brackets, the posts and the fall arrest grids or plates are all components that can be moved. be easily handled by a single operator or at most two operators, without the need to resort to particular lifting means.

Furthermore, the invention provides a security structure that is very simple and can be handled with mechanisms that are easy to handle, by virtue of the fastening means' wedge-type locking system, which can be easily handled with hammers or mallets. adapted.

In addition, the invention provides a safety structure that allows to provide a vertical protection that is complete, that is, it allows to protect any side of a formwork system comprising load-bearing panels, and therefore without load-bearing beams, and therefore makes the job safe for workers in all respects, as it can be provided with post support brackets that are suitable for fixing to a frame profile of a formwork panel.

The invention thus conceived is susceptible of numerous modifications and variations, provided they come within the scope of the invention which is defined only by the appended claims.

In practice, the components and materials used, provided they are compatible with the specific use, as well as the contingent shapes and dimensions, may be any according to requirements and the state of the art.

This application claims priority from Italian patent application No. 102016000036668 (UA2016A002458).

Where the technical elements mentioned in any claim are followed by reference signs, those reference signs have been included for the sole purpose of increasing the intelligibility of the claims and accordingly such reference signs have no limiting effect on the interpretation of the claims. each element identified by way of example by such reference signs.

Claims (6)

1. An anti-fall safety structure (10) for load-bearing panel formwork for slabs comprising: - A loading panel (11) comprising at least two lateral longitudinal support profiles (12, 13) mutually connected by transverse elements (14, 20), - At least two support posts (15, 16) for one or more fall protection elements (17), - For each post (15, 16), a post support bracket (22, 18), provided with fastening means (19) for reversible engagement with an external transverse element (20), - Said fastening means (19) having a wedge-type closing system (21), - Said post support bracket (22) comprising, with respect to a configuration for use, a load-bearing longitudinal element (24), the fastening means (19) being fixed on the load-bearing longitudinal element (24), said means of clamp (19) comprising: - A lower support plate (27), which is supported by a horizontal tubular segment (28) is fixed to the load-bearing longitudinal element (24), - and the wedge-type closure system (21), which is fixed in an upper region of said load-bearing longitudinal element (24), characterized in that said loading panel (11) is provided with lower reinforcing bars (35), which are arranged below and transversely with respect to the transverse elements (14, 20) and said support plate (27) is provided in an upper region with two centering elements (29), which are adapted to be arranged on the sides of a reinforcing bar (35). 2. The anti-fall safety structure according to claim 1, characterized in that said support plate (27) is preset to rest against the lower part (30) of a lateral transverse element (20), said closing system of wedge type (21) acting against the upper surface (31) of said lateral transverse element (20). 3. The anti-fall safety structure according to claim 2, characterized in that said wedge-type closure system (21) comprises a tubular guide body (32), with an axis that is vertical in the configuration for use, and a translation slider (33), which is designed to slide vertically in the tubular guide body (32), said translation slider (33) supporting, at the upper end, a clamping plate (36) that is adapted to be pressed against the upper surface (31) of the lateral cross member (20). 4. The anti-fall safety structure according to claim 3, characterized in that said wedge-type closure system (21) comprises a wedge-shaped body (34) that is inserted in a transverse direction with respect to the vertical direction of translation of the slider (33), said wedge-shaped body (34) being inserted into corresponding passage openings formed respectively in the guide body (32) and in said slider (33). 5. The anti-fall safety structure according to one or more of the preceding claims, characterized in that said post (15) comprises a tubular body (45); said tubular body (45) for example having a quadrangular cross-section, being provided on a first side with a lower support bracket (46) for a net or grid (17) or other similar fall protection element, and on a second side of L-shaped supports (47, 48, 49) that are fixed and spaced in a vertical direction, each cooperating with a symmetrical L-shaped support of another post (116) in the support of another fall arrest plate (117, 177a, 117b), a hooking protrusion (53) being present at the upper end of the post (15), for hooking a corresponding upper portion of a grid (17). 6. The anti-fall safety structure according to claim 5, characterized in that said other post (116) comprises other fastening means (119) comprising: - A first support body of the lower plate type (127), supported by a load-bearing longitudinal element (124) and adapted to rest against the lower face (160) of a lateral longitudinal profile (12, 13) of a load-bearing panel (eleven); - And a wedge-type closure system (121), which incorporates a portion of said load-bearing longitudinal element (124) of said other fastening means (119), said wedge-type closure system (121) of said other means fastening (119) moving a second plate-type body (163) against the upper surface (131) of said lateral longitudinal profile (12, 13).