FR2621346A1 - Articulated protection barrier adaptable for parapets - Google Patents

Abstract

Protection barrier 4 for unoccupied garage pit placed perpendicularly at the end of articulated longitudinal handrails 3 protecting the pit 12. When pushed by an actuator the parallel guard rails rise and at the same time the barrier 4 preventing entry into the pit positions itself perpendicularly at each end of the pit. To be used in garages or businesses having a pit or an excavation to be protected.

Description

 The present invention relates to a hinged protective barrier or balustrade, known as a railing (4) for the protection of pits, excavations, trenches or the like, automatically and perpendicularly placed at the end of the pit (12) preventing workers who are unknowingly at risk to fall unexpectedly into this pit, whether day or night.

 So if the pit is not in use, it should be protected all around. This barrier (4) secured to a longitudinal ramp (3) which, by pivoting on an axis (6) is positioned horizontally at right angles, between the two right and left ramps (3). thereby obstructing the entrance to the pit, front or rear. That is to say at each at each end of the pit.

 This control of the longitudinal ramps (3) and the uprights (2 and 2 ') which are also articulated on axes, places in the yokes (I3) and (5). These ramps at rest being folded over the ground, can be lifted by means of uprights (2) actuated by unlivgFin hydraulic, pneumatic, electric motor iu other. The side ramps (3 and 3 ') are raised thanks to the uprights (2) shoots by cylinder. These uprights are also articulated at their base and at their top on the ramps (3), by pins or ball joints (5-5 '), each articulation of these ramps, can be done in the same direction, or in the opposite direction .Once the ramps (3) arrived at their highest point raised horizontally, the barrier (4) deploys at a right angle perpendicularly preventing the entry of the pit.

The articulation of this bar or barrier (4) is as follows. The link (8) supports the bar (4) by pivoting on the axis (6). At the end of this link (8) is mounted a ball joint (7) on which pivots an adjustable rod (9), also pivoting on another ball joint (7) whose rod is integral, which allows rotation at right angles of the bar or barrier (4). Flanges (5) make the ramp (3) integral with the uprights (2) each pivoting on an axis (IO)
The base or the periphery of the pit is provided with yokes (I3) receiving the base of the uprights (2) or they pivot when the jack pushes.

The invention will be better understood by referring to the description and the accompanying drawings by way of example, schematic, non-limiting indicative, but are subject to numerous variants of embodiments and aplications, as product
New industrial.

 FIG - I - represents a longitudinal ramp (3) lowered to ground level, showing in (4) the folded barrier. In (2) the uprights articulated on the axes (5). In (I) the bar (3) fixed to the ground on which pivot the uprights (2) and (2 ') during the maneuver produced by the double-acting venom.

 FIG-2- shows in (4) the actual barrier, at the time of its opening the jack pushing the uprights (2) which pivot on their base, as well as at their top thanks to an axis (10). While the rods (8) and the rod (9) pivot on ball joints (7). The cylinders are double acting.

 FIG-3 - represents an enlarged, 1tirincipe of articulation of the rods (8) and (9) pivoting on an axis (6) integral with the upper ramp (3).

 FIG- 4 - is an elevation view, showing the longitudinal ramp (3) placed vertically and whose barrier (4) is articulated at right angles and at the same height between the two ramps (3) right and left, preventing the entrance to the pit The joints (5) and 5 ') or axes are held in place by yokes (I3) which can be sealed in the cement at the edge of the pit (I2).

 FIG- 5 - shows a view of the interior of the right side pit, revealing the barrier (4) obstructing the descent into the pit.

 FIG- 6 - shows also seen from the inside of the left cat pit, the protective bar (4) which is also placed perpendicularly between the two strips (4) thus preventing falling into the pit (I2) Each ramp (3) and uprights (2 and 2 ') are actuated each by an appropriate cylinder, right and left, operating at the same time or separately. The cylinders could be replaced by an electric motor and remote controls.

 The invention may also vary in form, model of materials, dimensions without altering the idea and the principle of the invention.

Claims (2)

 R E V E N D I C A T I O N S  top under the ramp (3).  will pivot at their base on a fixed axis, and also at their  lifted together by the action of the jack, These uprights (2)  will be raised at the height of the uprights (2), which will  directly at the end of the pit as soon as the parallel ramps (3)  protection will then be placed automatically and perpendicular  protection preventing unconscious people from unexpectedly falling into the pit. This barrier (4) or bar of  or placed by instantaneous joints becomes a barrier  so-called protective railing, when by the play of jacks  I - The invention relates to a protective bar or barrier  2 - Barrier according to claim - I - characterized  in that the longitudinal ramps (3) will be raised at the  vertical thanks to the uprights (2) pushed and raised at the  vertical by a jack, hydraulic or pneumatic.  several cylinders, pneumatic. or others. or double acting.  that the longitudinal ramps (3) will be lifted by one or  3e- Barrier according to claim -I- characterized in that  made by a suitable electric motor.  what the control of the whole joints can be  4 - Barrier according to claim -I- characterized in  place vertically under the thrust of the jack.  in (6) with it as the uprights (2) are  right angle bracket on which it is supported and swivels  secured by pivoting at (6) of the ramp (3) thanks to a  5 - Barrier according to the preceding claims is  anointed lumines.  automatically either by its ap-near, or by a painting  terrified by the fact that at night it can be made bright  6 - Barrier according to the preceding claims, charac