WO1994013885A1

WO1994013885A1 - Collapsible barrier

Info

Publication number: WO1994013885A1
Application number: PCT/FR1993/001221
Authority: WO
Inventors: René Anglade
Original assignee: Anglade Rene
Priority date: 1992-12-11
Filing date: 1993-12-10
Publication date: 1994-06-23
Also published as: FR2699208B1; EP0628111B1; CA2129529A1; ATE158042T1; EP0628111A1; JPH07504006A; FR2699208A1; DE69313834D1; AU5653794A; BR9305869A

Abstract

A collapsible barrier comprising at least one rail (2) and a secondary rail (10'). The barrier is remarkable in that the rail (2) is supported by two or more spaced apart diamond-shaped mechanical assemblies (3') each consisting of four arms hinged together at their ends, in that said rail (2) is attached to one hinge of each assembly, i.e. a rail hinge (5), while the opposite hinge, i.e. a ground hinge (4), is fixed to the ground or to a member (1) placed on or fixed to the ground, said secondary rail consisting of a rod (10') parallel to the rail passing through or passed through by the other two hinges (6, 7) of each assembly, and in that at least one locking system is provided for locking the barrier in at least one operative position.

Description

Extendable barrier.

The invention relates to an extendable barrier, in particular intended to constitute a railing or a barrier, or even a signaling barrier.

The present invention is in fact more particularly, but not exclusively, intended to protect the pits, trenches, or at all, against the accidental falls of passers-by or workers, and in general, to temporarily protect the excavations. permanently, such as garage pits.

However, not only does the invention also make it possible to equip a platform, a terrace, a loading dock, or the like, it may also make it possible to provide a temporary barrier for parking, pedestrianized area, work areas, etc., or constitute a simple support barrier for signaling.

A garage pit railing, for example, has a heald, a sill and a baseboard.

Such a guardrail must be able to be installed and uninstalled easily since it must not hinder the use of the pit. This is why we imagined railings of the folding type, such as those described in French patents 2621346 and 2661932 in the name of the same inventor.

One of the drawbacks of the known devices is the need to provide a housing for the folded railing which constitutes a grip on the pit and / or requires earthworks.

The barrier according to the invention makes it possible inter alia to avoid this drawback.

The invention indeed provides an extendable barrier comprising at least one heald and one sub-heald, but which is remarkable in that the heald is supported by at least two mechanical diamonds separated from one another and each formed of four arms hinged together at their ends, in that the heald is fixed to one of the articulations of each rhombus, called heald articulation, the diametrically opposite articulation, called ground articulation, being intended to be fixed to the ground or on an element to be fixed or placed on the ground, while the sub-rail is constituted by at least one rod parallel to the rail which crosses the two other joints of each rhombus, called sub-arm joints, or is crossed by them, and that at least one blocking system is provided for blocking the barrier in at least one position of use.

It is understood that such a barrier is extendable upwards, the heald and the sub-heald can thus be raised or lowered vertically (for a horizontal installation).

According to one embodiment, the blocking system comprises on at least one of the sub-hinge joints for each losan¬ ge, a threaded ring, intended to come into engagement with a threaded part of the sub-smooth rod.

Advantageously in this case, a rota¬ tion drive means is further provided to be engaged with the sub-smooth rod so that the rotation thereof causes the spacing, or the approximation, of the joints sub-rail and vice versa the approximation or spacing of the heald and floor joints. Also preferably, the sub-arm rod has, for each rhombus, a threaded part for only one of the sub-hinge joints of said rhombus and a smooth part for the other sub-hinge articulation, the latter comprising a ring wherein said sub-arm rod can slide freely.

According to another embodiment, possibly with manual actuation, the locking system comprises for each diamond and on at least one of the sub-hinge joints, a pawl intended to come into engagement with at least one notch formed on the shank rod, which is made rotatable to be able to disengage from the pawl by simple rotation.

For example in this case, at least one counterweight is provided to hold the sub-arm rod in a position in which the notches with which it is provided, are turned towards the pawls. Such a barrier can also be constituted by several elementary barriers connected together by means which subject the sub-rails to rotation as desired, while a means for locking in rotation can be provided on at least one of said elementary barriers. . According to a particularly advantageous embodiment, the blocking system includes, for some at least of the diamonds, a double-acting cylinder whose rod acts on one of the arms of said diamond. ge, while the sub-heald joints are mounted coulissan¬ your in the sub-heald so that actuation of the actuator causes the spacing, or reconciliation, of the sub-heald joints and vice versa, the reconciliation or the spacing of the boom and floor joints. Preferably in this case, the cylinder of the jack is positioned substantially at ground level, parallel to the sub-beam and to the beam, while the rod of said cylinder is articulated by at least one link to one of the arms neighboring the ground joint of said rhombus. The end of the rod of the jack can, for example, be articu¬ lated to the link by means of at least one roll of roule¬ ment.

In particular to ensure a well parallel lifting of the heddle, one of the two sub-hinge joints of at least some of the diamonds are connected together by a connecting bar. Advantageously also, at least some of the sub-hinge joints are stressed by a compression spring acting in particular as a damping means on the descent.

To allow various applications, an embodiment is remarkable in that the sub-rail rod has several sections connected to each other by articulated connections thus making it possible to constitute a barrier in a broken line.

The floor joint is, for example, fixed to a base forming at least one plinth, said base being intended to be fixed or to rest on the ground.

The base can have the shape of an inverted T, but also the shape of a U.

The base can also be intended to be placed in an excavation provided for this purpose. In this case and according to one embodiment, the base is, for example, framed on either side of its length by elements forming a ramp and it is articulated to at least one of said elements which rests on the ground of such so that the other element is raised when the barrier is forced towards the articulated element. Depending on the applications, it is also possible to provide for the ends of the heddle to be slidably mounted in two lateral uprights, means which can also be provided in at least one of the uprights to activate the barrier by acting on the arm. The invention will be clearly understood and other particularities will appear on reading the description which follows and which refers to the appended drawings in which:

FIGS. 1, 2 and 3 show a barrier according to the invention in three positions, respectively low, intermediate and high,

FIGS. 4, 5 and 6 correspond to FIGS. 1 to 3, according to another embodiment,

FIG. 7 partially shows another embodiment provided with another blocking system,

FIG. 8 shows a particular connection between two barrier elements,

FIG. 9 represents an application made possible by a connection of the type of that of FIG. 8,

- Figures 10 to 15 show possible applications of the embodiments shown in the preceding figures.

A barrier according to the invention, as shown in Figures 1 to 6, comprises a base 1 intended to be fixed or placed on the ground, or on any element integral with the latter, and a heddle 2 in the form of a bar (identical parts from one embodiment to another having the same references).

The rail 2 is movably attached to the base 1, by means of articulated arms forming diamonds such as diamonds 3 and 3 '.

In the embodiment of Figures 1 to 3, there are two diamonds 3 and in the embodiment of Figures 4 to 6, three diamonds 3 'are used (there could of course be more).

As the figures show, each diamond 3, 3 ′ is made up of four arms hinged together. The base 1 and the rail 2 in fact comprise parts respec¬ tively 4 and 5 on which are articulated the corres¬ ponding ends of two arms of each rhombus and this is why the parts 4 and 5 will be referred to below as joints respectively of soil and stringer.

In fact, it is perfectly understood that the arms of the rhombus could be directly articulated with one another without the intermediary of parts 4 and 5.

The other two joints 6, 6 'and 7, 7', are said to be sub-smooth for the reasons which will be understood below. In the embodiment of Figures 1 to 3, the sub-arm joints

6, 7 have for one 6, a threaded ring 8 and for the other 7, a smooth ring 9.

The rings 8 and 9 of the joints 6 and 7 are crossed by the sub-rail formed by at least one bar or rod 10.

The rod 10 here has threaded portions 10a and smooth portions 10b.

The threaded parts 10a are intended to cooperate with the threaded rings 8 and the smooth parts 10b are intended to pass freely through the rings 9.

In this way, it is understood that a rotation of the sub-rail rod 10 makes it possible, by screwing and unscrewing, to bring the joints 6 and 7 closer or apart and at the same time of course respectively to move the joints 4 and 5 and therefore raise or lower the heald 2 and the rod 10 of the heald.

To ensure this rotation, an electric, hydraulic, pneumatic, or other motor 11 is provided here.

The dimensions are such that in the folded position (Figure 1), all the elements are housed in the base 1. It is understood that the sub-rail rod has several functions here.

It constitutes first of all a necessary smooth, even obliga¬ toire for protection, but also a control and blocking member of the barrier. We can consider several possible elevation heights depending on the uses, Figure 3 showing a maximum elevation depending on the length provided for the threaded parts of the rod 10.

It is clear, however, that the entire rod 10 could be threaded.

In the embodiment of FIGS. 4 to 6, the sub-heald joints 6 ′, 7 ′ are also crossed by a sub-heald rod 10 ′, but here each articulation 6 ′, 7 ′ has an axis which crosses a corresponding light 10 ′ has been arranged in said sub-smooth rod (see also FIG. 12 for a perspective view).

There is therefore no threaded part here, nor a motor 11. On the other hand, it can be seen that the two diamond shapes 3 ′ at the end are fitted with jacks 26, for example hydraulic, the cylinders of which are arranged in the base 1 opposite one another, parallel to said base and therefore parallel to the rail 2 and to the rod 10 'of the sub-rail. The rods 27 of the cylinders 26 are articulated by the intermediary of a roller 28 to a double link 29, itself articulated to one of the arms of the diamond close to the articulation 4 of the ground, the references aforementioned 27 to 29 being only indicated on one of the jacks 26 which equips one of the diamonds 3 'of FIG. 6 to avoid unnecessary repetitions.

In addition, in this particular and entirely advantageous embodiment of FIGS. 4 to 6, one of the sub-hinge joints of each rhombus, in this case here the hinges 6 ′, are connected together by a bar of connection 30. It will be understood that the actuation of the jacks 26 makes it possible to act on one of the arms of the end diamonds and thus to cause the lifting and lowering of the heddle 2 and of the rod 10 ' sub-stringer, the system thus being able to take, among other things, the positions shown in FIGS. 4 to 6, FIG. 4 showing the folded position in which, as before, the assembly is housed in the base 1.

The connecting bar 30 appeared very useful for ensuring a well parallel lifting of the heald and the sub-heald. In addition, the bar 30 stiffens the diamond 3 'of the medium without cylinder, because it is clear that it is not necessary to provide a cylinder by diamond and the arrangement shown with three diamonds and two cylinders is particularly advantageous .

The inventor also provided compression springs (not visible in the drawings) arranged in the openings 10'a, to provide damping on descent and / or to facilitate lifting.

In addition, other position locking means can be provided, as shown, for example, in the embodiment of FIG. 7 in which, in fact, the sub-hinge joints, referenced here 6 "and 7 ", include pawls 12, 13 intended to cooperate with notches 14, 15 formed in the rod 10" of the sub-arm.

In addition, in this embodiment, a counterweight 16 forces the sub-arm 10 "to be presented in such a way that the notches 14, 15 with which it is provided are turned towards said pawls 12, 13.

It is perfectly understood that in this embodiment, it suffices to lift the heald 2 to cause the locking of the pawls whereas it is necessary to turn the sub-heald 10 "to release the latter and fold up the barrier. It is also understood that the lifting of the arm 2 can be done by any means and even of course manually.

One can of course imagine connecting several barriers of the type of Figure 7, means being provided to subject at will in rotation, the sub-beams 10 ". These means can, for example, be arranged in the counterweights 16 which include this effect each a coupling groove 16 ′, as shown in FIG. 7. In addition, in this case, it is also possible to provide a means for locking the rotation of at least one of the barriers, this means comprising, for example, a lock provided in at least one of the articulations 6 ", 7", actuable by a key. This locking can of course be provided even if the barrier is in a single element.

FIG. 8 shows a barrier of the type of that of FIGS. 1 to 3 (it is of course possible to use the same means or similar means for the embodiment of FIGS. 4 to 6), but the sub-stringer 10 of which is in several sections linked together by fittings, such as fitting 17, here of Cardan type.

Such an arrangement makes it possible in particular to make elbows as shown in the barrier of FIG. 9 provided with at least one connection 17.

For a barrier of this type, the rail 2 and / or the base 1 can also be in several parts (or in one and have elbows).

Figure 9 already shows an application. Figures 10 to 13 show other possible applications.

With two barriers as described, it is possible, for example, to protect a garage pit 18, as shown in FIG. 10 (it is by way of example that the embodiment of FIGS. 1 to 3 is used here. ).

Figures 1 to 10 show a base 1 formed of an inverted T-shaped iron (Figure 10) or L-shaped (Figure 9) and therefore constituting a plin¬ the.

Figures 11 to 15, on the other hand, show a U-shaped base 1. The base 1 in Figures 11 and 12 is intended to be available in an excavation, or as here between two elements 19, 20 forming ramps, the barrier of FIG. 11 being of the type described in connection with FIGS. 1 to 3, and that of FIG. 12 of the type of that described in connection with FIGS. 4 to 6. It is then understood that the entire barrier can be folded in the base 1, the assembly forming, for example, a retarder (the arm 2 being wide enough to cover the base 1).

In the application of FIG. 13, only one ramp element 19 is provided, the barrier being, for example, intended for a landing quay.

Figures 14 and 15 show a barrier as previously described, but which is further provided here with two lateral uprights 21 and 22 in which the ends of the heddle 2 are, for example, slidably mounted. It can be a barrier forming a portal, for example. An entirely interesting embodiment can of course be directly obtained with the embodiment of FIGS. 4 to 6, the sliding being ensured by the openings 10'a. For this, it suffices simply to add mon¬ tants in FIG. 12. To actuate the barrier of FIGS. 14 and 15, there is provided at least one jack 23 arranged in at least one of the uprights, said jack being intended to act on the rail 2. However, with a device such as that of FIG. 12, the actuating cylinders are arranged as already said in the base 1. As in the case of FIGS. 11 and 12, the base is mounted between two elements 19, 20 forming ramps.

In addition, as shown more particularly in FIG. 15, the base and the uprights 21 and 22 are articulated at 24, 25 with the said elements respectively 19 and 20.

In this way, if the barrier is forced with a vehicle in one direction or the other, the barrier will pivot towards the element opposite to the direction of arrival of the vehicle while the other element will be driven in rotation and will block the vehicle. from below.

It is obvious that in this case, the articulation can only be provided on one side.

In addition, the element intended to be raised can be equipped with a stand which unfolds at the time of pivoting to prevent its return to the initial position without special intervention.

Claims

1) Extensible barrier comprising at least one stringer (2) and a sub-stringer (10,10 ', 10 "), characterized in that the stringer (2) is supported by at least two mechanical diamonds (3,3') separated from each other and each formed of four arms articulated together by their ends, in that the heald (2) is fixed to one of the articulations of each rhombus, called heald articulation (5), the diametrically opposite articulation, known as the ground articulation (4), a prop intended to be fixed to the ground or to an element (1) to be fixed or placed on the ground, while the sub-arm is constituted by at least one tig ( 10,10 ', 10 ") parallel to the heald which crosses the two other articulations (6,7; 6', 7 '; 6", 7 ") of each rhombus, called sub-heald joints, or is crossed by them, and that at least one blocking system is provided for blocking the barrier in at least one position of use.

2) Barrier according to claim 1, characterized in that the locking system comprises on at least one of the sub-hinge joints (6) for each diamond, a threaded ring (8), intended to engage with a part threaded (10a) of the sub-smooth rod (10).

3) Barrier according to claim 2, characterized in that u rotational drive means (11) is further provided to be e taken with the sub-smooth rod (10) so that the rotation of it- this causes the spacing, or the approximation, of the sub-heald joints (6,6 ′) and conversely the approximation or the separation of the heald (5) and ground (4) joints.

4) Barrier according to one of Claims 2 and 3, characterized in that the sub-rail rod (10) has, for each rhombus (3), a threaded part (10a) for only one (6) of the articulations of the sub-smooth of said rhombus and a smooth part (10b) for the other sub-smooth articulation (7), the latter comprising a ring (9) in which said sub-smooth rod can slide freely.

5) Barrier according to claim 1, characterized in that the locking system comprises for each diamond and on at least one of the sub-hinge joints (6 ", 7"), a pawl (12,13) intended to engaging with at least one notch (14,15) formed on the shank (10 "), which is made rotatable so that it can be released from the pawl by simple rotation.

6) Barrier according to claim 5, characterized in that at least one counterweight (16) is provided to maintain the rod (10 ") of sub-smooth in a position in which the notches (14,15) with which it is provided , are turned towards the pawls.

7) Barrier according to one of claims 1 to 6, characterized in that it consists of several elementary barriers connected together by means (16 ') which subject the sub-rails (10 ") to rotation, while means for locking in rotation can be provided on at least one of said elementary barriers.

8) Barrier according to claim 1, characterized in that the blocking system comprises for some at least diamonds (3 ') a jack (26) with double effect whose rod (27) acts on one of the arms of said diamond (3 '), while the sub-heald joints (6', 7 ') are slidably mounted in the sub-heald (10') so that actuation of the jack (26) causes the spacing, or the approximation of the sub-heald joints (6 ', 7') and vice versa, the approximation or spacing of the heald (5) and ground (4) joints.

9) Barrier according to claim 8, characterized in that the cylinder of the jack is positioned substantially at ground level, parallel to the sub-rail (10 ') and the rail (2), while the rod (27) of said cylinder is articulated by at least one link (29) to one of the arms adjoining the ground articulation (4) of said rhombus.

10) Barrier according to claim 9, characterized in that the end of the rod (27) of the jack (26) is articulated to the link (29) via at least one roller (28). il) Barrier according to one of claims 8 to 10, characterized in that one (6 ') of the two sub-hinge joints (10') of at least some of the diamonds (3 ') are connected between them by a connecting bar (30).

12) Barrier according to one of claims 8 to 11, characterized in that at least some of the sub-hinge joints (7 ') are biased by a compression spring acting in particular as a damping means for the descent. 13) Barrier according to one of claims 1 to 12, characterized in that the sub-rail rod has several sections connected to each other by articulated connections (17) thus making it possible to constitute a barrier in a broken line. 14) Barrier according to one of claims 1 to 13, characterized in that the ground articulation (4) is fixed to a base (1) forming at least one plinth, said base being intended to be fixed or to rest on the ground.

15) Barrier according to claim 14, characterized in that the base (1) has the shape of a U.

16) Barrier according to one of claims 14 and 15, caracté¬ ized in that the base (1) is intended to be disposed in an excavation provided for this purpose.

17) Barrier according to claim 16, characterized in that the base (1) is framed on either side of its length by elements (19,20) forming a ramp and in that it is articulated (24,25 ) to at least one of said elements (19,20) which rests on the ground so that the other element is raised when the barrier is forced towards the articulated element. 18) Barrier according to one of claims 1 to 17, characterized in that the ends of the heddle (2) are slidably mounted in two lateral uprights (21,22).

19) Barrier according to claim 18, characterized in that means (23) are provided in at least one of the uprights (21,22) for actuating the barrier by acting on the rail (2).