FR2986812A1 - Anti-fall safety device for use on roof of bungalow for protecting person working in height, has reserve unit that allows body to move in drawn up position by simple displacement of uprights of body with sliding motion along length of posts - Google Patents

Abstract

The device has a railing body (3) comprising two uprights (4) connected together by cross-pieces (5). Two interposable posts (6) are arranged between the railing body and a pre-equipped transportable type construction unit. The posts are insertable into a set of sleeves. A coupling unit (7) is arranged with the railing body, where the coupling unit is coupled with the posts. A reserve unit allows the body to move in a drawn up position by simple displacement of the uprights of the body with a sliding motion along a length of the posts.

Description

The present invention relates to a fall-proof safety device of the positionable type on a prefabricated construction, generally on the roof, of vertical shaft sleeves, and a construction comprising such a device.

It relates more particularly to an anti-fall safety device for the protection of persons working at height, of the type comprising, on the one hand, a guardrail body comprising at least two uprights interconnected by sleepers and, on the other hand, on the other hand, two posts that can be interposed between the guardrail body and the construction to be secured, said posts being insertable with partial interlocking in the sleeves of the construction to be secured for holding them in an erect position. Many buildings, such as bungalows, are equipped with roofing, especially in the corners of the roof, which is, preferably a flat roof, vertical shaft sleeves integrated at least partially in the roof. These sleeves may allow the attachment of safety devices which are capable of forming, at the periphery of the roof, a fall-proof barrier. Until now, such safety devices are in the form of a railing formed of an assembly of uprights and crosspieces, the railing being fixed by keying, pinning, or screwing the amounts to the sleeves after partial interlocking amounts in said sleeves. As the bungalows are transportable constructions that have to be regularly moved, the result is the obligation to dismantle the guardrail after each intervention and reassemble it before any further intervention on the roof. These interventions generate a loss of time and a risk of loss of the railing that must be stored away from the construction. An object of the present invention is therefore to provide an anti-fall safety device of the aforementioned type whose design allows a pre-equipment of the construction without harming the transport of said construction in the case of a transportable construction. Another object of the present invention is to provide a fall protection device whose design allows easy assembly and disassembly without tools. Another object of the present invention is to provide a fall protection device whose design allows a fast passage from a position of greater bulk corresponding to an active position for securing an inactive position of smaller size. For this purpose, the subject of the invention is a fall-proof safety device of the positionable type on a pre-equipped construction, generally on a roof, with vertical axis sheaths, said safety device comprising on the one hand a guard body. -Body comprising at least two amounts interconnected by cross members and, secondly, two posts interposable between the guardrail body and the construction to be secured, said posts being inserted partially interlocking in the sleeves of the construction to secure for holding them in erect position, characterized in that the safety device comprises means for pivotally coupling the guardrail body to each post for the passage of said guardrail body, in the state coupled to said posts from a lying position to an erected position and, conversely, and means for retaining the guardrail body in an erect position, which can be activated / deactivated simply sliding movement of the posts of the guardrail body along said posts.

Thanks to the design of the retaining means and their passage from an active position to an inactive position by simply sliding the posts of the guardrail body in a direction substantially parallel to the longitudinal axis of the posts, this results in a passage Fast position upright to the recumbent position of the guardrail body to allow storage of the guardrail body on the surface of the roof for possible transport of the construction and reduce the clutter of the guard body -body before a new intervention.

Furthermore, since the posts are insertable to partially fit into the sleeves of the construction and the guardrail body is able to move from an erect position, in which it is retained, to an erect position, in which it is not retained by simple sliding movement, the mounting of the safety device as changes in position of the guardrail body can operate without tools. Preferably, the retaining means are, from the active position, deactivatable by lifting the guardrail body.

Preferably, for each post, the means for pivotally coupling between the guardrail body and said post comprises a pivot axis carried by a post of the railing body and at least one axis bearing disposed on the post.

Said pivot axis extends, perpendicularly to the longitudinal axis of the amount of the guardrail body, on the portion of the amount opposite to that facing the other post of the guardrail body, and the or each landing axis has the shape of a slide, with a longitudinal axis substantially parallel to the pole.

The slide defines a guide path within which said pivot axis is able to slide and rotate on itself. The sliding makes it possible to activate / deactivate the retaining means without breaking the pivot connection between the guardrail body and the post. The rotation of the pivot axis on itself inside the slide allows the passage of the guardrail body from the supine position to the upright position and vice versa.

The realization of axis bearings as a slide facilitates the assembly and disassembly of the pivot connection. Indeed, the slide defines a groove, open at least one of its ends, said upper, in the erected state of the pole, to allow the introduction or the exit by said end of the pivot axis.

Thus, in the same lowering movement of the guardrail body, it is possible to pivotally couple the guardrail body to the pole and then to ensure its retention in the erect position.

The upper end of the groove forming a slideway for receiving a pivot axis may be provided at the sidewalls of the groove through holes to allow the closing of the groove by pinning or otherwise, this closure of the groove preventing inadvertent disassembly of the pivot connection.

Preferably, the or each slide has the shape of a wing external to said pole, this wing delimiting a groove forming a slide. This wing is adapted to form an axial abutment of insertion limitation of the pole inside a sheath of the construction.

Preferably, each post comprises at least two, preferably at least four axis bearings distributed substantially equidistantly around the post.

Thus, two of said axis bearings are arranged in a plane extending orthogonally to a plane passing through the other two axis bearings. This results in the possibility, using the same pole, to couple the guardrail body to the post in four different directions. Preferably, the retaining means extend above the coupling means in the erected position of the guardrail body.

Preferably, the retaining means of the guardrail body in upright position extend between the amount of the guardrail body and post, and comprise, each time, a section of axis carried by the amount of the guard body. body and at least one seat for receiving said section of cradle-shaped shaft disposed on the post, said section of axis extending perpendicularly to the longitudinal axis of the amount of the guardrail body on the part of the post opposite to that facing the other side of the guardrail.

Again, thanks to this design, it results in a simplicity of implementation. Preferably, each post is equipped, on its outer periphery, below the pivotal coupling means carried by said post, projecting elements with spacer function able to allow the maintenance of free spaces between post and sheath , in the partially fitted state of the post in said sheath. These free spaces delimit water flow passages along said post. These waters penetrate into the sleeves and can be channeled through gutters equipping said sleeves. For each post, the pivotal coupling means carried by the post protrude from the post beyond the spacer elements to form an axial stop adapted to limit the introduction of the pole into a sheath.

The subject of the invention is also a preferably transportable construction of the pre-equipped type, generally on the roof, of vertical shaft sleeves, and of a fall protection device, characterized in that the fall arrest device is in accordance with that described herein. -above.

The invention will be better understood on reading the following description of exemplary embodiments, with reference to the appended drawings in which: FIG. 1 represents an overall view of a safety device according to the invention in position erected from the guardrail body in the retained state of said body; Figure 2 shows a partial perspective view of the guardrail body as it is pivotally displaced from the upright position; FIGS. 3A to 3C show as partial diagrammatic views the passage of a railing post from the erected position after lifting the guardrail body, disabling the retaining means, in the supine position; FIG. 4 represents a view in transparency of a post in the state partially fitted in a sheath formed in the roof of a construction; Figure 5 shows a view of the guardrail body alone. As mentioned above, the safety device, which is the subject of the invention, is more particularly intended to equip building roofs, in particular transportable constructions, such as bungalows, to enable roofing interventions. This safety device is generally positioned at the periphery of the roof to form an anti-fall barrier. To allow the positioning of such a safety device, the roof is equipped with sheaths 2 with a vertical axis generally disposed at least at the 5 angles of the roof. As mentioned above, the safety device comprises at least one guardrail body 3 and two posts 6 interposable between the guardrail body 3 and the construction 1 to be secured, said posts 6 being insertable 10 partially interlocked in the sleeves 2 of the construction to secure for their maintenance in erect position. The guardrail body 3 comprises at least two uprights held parallel to each other. In the example shown, the guardrail body 3 is in the form of a one-piece structure made by assembling uprights 4 and crosspieces 5. In particular, in the examples shown, the guardrail body 3 comprises two end uprights and an intermediate upright 20 interconnected by three sleepers, the lower crossbar forming a baseboard. The guardrail body 3 could have equivalently incorporated a gate. Characteristically according to the invention, the safety device comprises means 7 for pivotally coupling the guardrail body 3 to each post 6 for the passage of said guardrail body 3, in the state coupled to said posts. 6, from a lying position to an erected position and, conversely, and means 10 for retaining the guardrail body 3 in upright position, said retaining means 10 being retaining means 30 activated / deactivatable by simple displacement sliding of the uprights 4 of the guardrail body 3 along said posts.

In the examples shown, for each post 6, the pivoting coupling means 7 between the guardrail body 3 and said post 6 comprise a pivoting pin 8 carried by an upright 4 of the guardrail body 3 and at least one bearing 9 axis disposed on the pole 6.

Said pivot axis 8 extends, perpendicularly to the longitudinal axis of the upright 4 of the guardrail body 3, on the part of the upright 4 opposite to that facing the other upright 4 of the guardrail body 3, and the or each axis bearing 9 has the shape of a slide, with a longitudinal axis substantially parallel to the post 6. Each post 6 here comprises four bearings 9 of axis distributed substantially equidistantly around the post 6.

In particular, the four bearings 9 of axis of a post 6 respectively affect the shape of a peripheral outer wing to said post 6 and are arranged in the manner of the arms of a cross around said post, each wing being formed of two elements 91, such as flat, parallel delimiting between them a groove 92 forming a slide.

Each wing extends over a part of the length of the pole. The so-called lower end of each bearing slide 9 of axis forms a support surface 93 adapted, in erected position of the post 6 and in the inserted state of the post 6 in the sheath 2 of the construction 1 to be secured, to on the upper end of said sheath 2. Indeed, each wing protrudes from the post of a sufficient length to form, in the nested state of the post in a sheath 2 of the construction 1, an axial limit stop of the introduction of the pole inside said sheath.

The retaining means 10 extend above the coupling means 7 in the erected position of the guardrail body 3.

In particular, the means 10 for retaining the guardrail body 3 in the erect position extend between the upright 4 of the guardrail body 3 and the post 6, and comprise in each case a section 11 of axle carried by the upright 4 of the guardrail body and at least one seat 12 for receiving said section 11 of cradle-shaped shaft attached or integrated to the post 6. Said section 11 of axis extends perpendicularly to the longitudinal axis of the amount of the 3 guardrail body, on the opposite side of the portion facing the other amount 4 of the body 3 guardrail.

Again, preferably, the posts have four seats distributed substantially equidistantly around the post. Each U-shaped seat is disposed above an axle bearing so that the web of the U is aligned in a vertical plane with the groove formed by the axle bearing slide in the erected state. of the post 6. To facilitate its maintenance in the erected state while maintaining a free space between the peripheral wall of the post and the inner wall of the sheath, each post 6 is equipped, on its outer periphery, below the means 7 of coupling to pivoting, carried by said post 6 of elements 13 protruding spacer function adapted to allow the maintenance of free spaces between post 6 and sleeve 2, partially embedded state of the post 6 in said sheath 2. The perimeter over the entire perimeter of the post taken at the level of the pivoting coupling means carried by said post to allow a partial interlocking of the post in a sleeve 2 to the level of coupling means. Each post is preferably a metal post with quadrangular section. The elements 13 projecting are arranged on two opposite faces, said first faces, said post leaving free the other faces. These projecting elements form, on each first face of the post, an ear made using for example a flat, whose faces extend parallel to the faces of the pole without ear, said second faces of the post. These ears are capable of coming, by their edge opposite their connecting edge to the post, bearing against two opposite inner faces, said first inner faces, of the sheath. Each ear can support a bar longer than the width of the first face of the pole. This bar is applied against the first face of the pole. This bar projects from the longitudinal edges of said first face to form, by its free ends, a bearing surface against two opposite inner faces of the sheath, said second inner faces of the sheath. Each post is provided at two different levels of the ear / bar assemblies as described above. The establishment of a safety device, as described above, operates extremely easily. At first, two posts 6 are threaded into two sheaths 2 chosen so that in the partially fitted state of the posts 6 in the sleeves 2, the grooves formed by the slideways of the axis bearings of said posts are positioned in the same vertical plane facing one another. The guardrail body 3 with each of its uprights equipped with a pivot axis surmounted by an axle section is inserted from above into the space left free between said posts, so that by lowering the body of railing the pivot axis of each post of the guardrail body is inserted into one of the post slide grooves facing each other, and the axle section is inserted into the cradle overlying the slideway housing the guardrail body. pivot axis. The mounting of the safety device is completed.

In this position, the guardrail body held upright can be locked with a pin connected by a chain to the pole. This pin is inserted into two holes formed in the sidewalls of the cradle above the location occupied by the axis section. This device can be replaced by a spring blade to retain all. To allow the passage of the guardrail body from the upright position to the supine position, it is appropriate, if the pin has been inserted into the holes, to disengage and lift the guardrail body to extract the section axis of its cradle, while the pivot axis slides in parallel in its slide. Once the guardrail body is sufficiently raised so that the axle sections extend above the cradles with which they are associated, the guardrail body is pivotally driven about its pivot axis up to the supine position. In the supine position of the railing, the pivot axis descends under the effect of the weight of the guardrail body in its slide to come to bear against the upper face of the sleeve because the groove of the slide is open to each from its ends. To dismantle the safety device, simply lift the guardrail body to extract the axis sections of the cradles with which they are associated and the pivot axes of their slides, and then disassemble the posts 25 of their sleeves. All of the operations described above are carried out without tools and without special arrangements for roofs already equipped with ducts. 30

Claims (11)

REVENDICATIONS1. Fall arrest safety device of the positionable type on a construction 5 (1) pre-equipped, generally on the roof, with sheaths (2) with a vertical axis, said safety device comprising, on the one hand, a body (3) of guardrails comprising at least two uprights (4) interconnected by crosspieces (5) and, secondly, two posts (6) interposable between the guardrail body (3) and the construction (1) to be secured, said posts (6) being insertable with partial engagement in the sleeves (2) of the construction to be secured for holding them in an erect position, characterized in that the safety device comprises means (7) for pivotally coupling the body (3 ) railing at each post (6) for the passage of said guardrail body (3), in the state coupled to said posts (6), from a lying position to an erected position and, conversely, and means (10) for retaining the guardrail body (3) in an erect, activatable position es / deactivable by simply sliding movement of the uprights (4) of the body (3) guardrail along said poles. 20 2. Safety device according to claim 1, characterized in that the means (10) of retaining are, from the active position, deactivable by lifting the body (3) guardrail. 3. Safety device according to any one of claims 1 or 2, characterized in that for each pole (6), the means (7) pivotally coupling between the body (3) guardrail and said post (6) comprise a pivot shaft (8) carried by a post (4) of the guardrail body (3) and at least one axle bearing (9) disposed on the post (6). 30 4. Safety device according to claim 3, characterized in that said axis (8) pivot extends, perpendicularly to the longitudinal axis of the upright (4) of the body (3) guardrail, on the part of the amount (4) opposing the conveyor to the other post (4) of the guardrail body (3), and in that the or each bearing (9) of axle is in the form of a rail, longitudinal axis substantially parallel to the pole (6). 5. Safety device according to claim 4, characterized in that the or each slide has the shape of a wing external to said pole, said flange defining a groove forming a slide, said wing being adapted to form an axial limit stop of introduction of the pole inside a sheath of the construction. 6. Safety device according to any one of claims 3 to 5, characterized in that each post (6) comprises at least two, preferably at least four bearings (9) of axis distributed substantially equidistantly around the post (6). 7. Safety device according to claim 4 or any one of claims 5 or 6, taken in combination with claim 4, characterized in that the said lower end of each bearing slide (9) axis forms a surface (93) bearing, in upright position of the post (6) and in the inserted state of the post (6) in the sleeve (2) of the construction (1) to be secured, to bear on the end upper of said sheath (2). 8. Safety device according to any one of claims 1 to 7, characterized in that the means (10) for retaining extend above the coupling means (7) in the erected position of the body (3). bodyguard. 9. Safety device according to any one of claims 1 to 8, characterized in that the means (10) for retaining the body (3) guardrail upright position extend between upright (4) of the body ( 3) railing 30 and post (6), and each comprise, a section (11) axis carried by the amount (4) of the guardrail body and at least one seat (12) of receiving said cradle-shaped shaft section (11) disposed on the pole (6), said axle section (11) extending perpendicularly to the longitudinal axis of the railing body (3) on the part of the amount opposite to that facing the other upright (4) of the guardrail body (3). 10. Safety device according to any one of claims 1 to 9, characterized in that each pole (6) is equipped, on its outer periphery, below the means (7) of pivotal coupling carried by said pole ( 6), elements (13) protruding spacer function adapted to allow the maintenance of free spaces between post (6) and sleeve (2), in the partially fitted state of the post (6) in said sheath (2). 11. A preferably transportable construction of the type pre-equipped generally with vertical shaft roofing (2) and a fall protection device, characterized in that the fall arrest device is in accordance with one of the claims 1 to 10. .