FR2699208A1 - Extendable barrier. - Google Patents

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

  born to constitute a railing or a dam, or even a barrier

signaling.

  The present invention is indeed more particularly, but

  not exclusively, intended to protect pits, trenches, or

  very, against accidental falls of passers-by or workers, and

  in general, to protect temporarily, the excavated

  permanently installed, 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, but it also makes it possible to provide a temporary barrier for parking, pedestrian street, work areas, etc., or to constitute a simple barrier

support for signaling.

  A garage pit railing, for example, has a

  smooth, a sub-smooth and a plinth.

  Such a railing must be able to be installed and uninstalled

  easily since it must not interfere with the use of the pit.

  This is why we have 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

  right of way over 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

  both at least one heald and one sub-heald, but which is remarkable in that the heald is supported by at least two mechanical diamonds spaced from one another and each formed by four arms articulated together by 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 to an element to be fixed or placed on the ground, while the sub-rail is constituted by a rod parallel to the rail which crosses the two other articulations of each rhombus, called articulations of sub-rail, and that a blocking system is

  designed to block the barrier in at least one position of use

  tion. It is understood that such a barrier is extendable upwards, the heald and the sub-heald can thus be raised or lowered.

  vertically (for horizontal installation).

  According to one embodiment, the blocking system comprises

  on at least one of the sub-beam joints for each diamond

  ge, a threaded ring, intended to come into engagement with a part

threaded from the sub-arm rod.

  Advantageously in this case, a rotational drive means

  tion is further provided to be engaged with the sub-rail rod so that the rotation thereof will cause the spacing, or approximation, the sub-smooth joints and vice versa the approximation or spacing of heald and ground joints Preferably also, the sub-heald rod present for each rhombus

  a threaded part for only one of the sub-articulations

  smooth of said rhombus and a smooth part for the other sub-smooth articulation, the latter comprising a ring in which said rod

  sub-smooth can slide freely.

  According to another embodiment, possibly with actuates-

  Manual, the blocking 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 sub-heald rod, which is made rotatable. to be able to free itself from the pawl by

simple rotation.

  For example in this case, at least one counterweight is provided to maintain the sub-arm rod in a position in which

  the notches with which it is provided, are turned towards the pawls.

  Such a barrier may also be constituted by several elementary barriers connected together by means which subject the sub-rails to rotation at will, while a means for locking in rotation can be provided on at least one

said elementary barriers.

  To allow various applications, an embodiment

  tion is remarkable in that the sub-arm rod has more

  several sections linked together by articulated connections allowing

  thus to constitute a broken line barrier.

  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 arranged in a

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 the other element lifts up when the

  barrier is forced towards the articulated element.

  Depending on the applications, it is also possible to predict that

  the ends of the arm are slidably mounted in two

  sides and that in addition means are provided in at least

  one of the uprights to activate the barrier by acting on the arm.

  The invention will be well understood and other features

  will appear on reading the description which follows and which

  refers to the accompanying drawings in which:

  Figures 1, 2 and 3 show a barrier according to the invention.

  tion in three positions, respectively low, intermediate-

  re et haute, Figure 4 partially shows another embodiment provided with another blocking system, Figure 5 shows a particular connection between two barrier elements, Figure 6 shows an application made possible by connecting the type of that of figure 5,

  Figures 7, 8 and 9 show possible applications.

  A barrier according to the invention, as shown in Figures 1 to 3, comprises a base 1 intended to be fixed to the ground and a

smooth 2 in the form of a bar.

  The rail 2 is movably attached to the base 1, by means of

  articulated arms forming diamonds such as diamonds 3 and 3 '.

  As the figures show, each diamond 3, 3 ′ is made up of

  killed by four arms hinged together.

  The base 1 and the arm 2 in fact comprise respective parts

  4, 4 'and 5.5, on which the corresponding ends of two arms of each diamond are hinged and this is why the

  parts 4, 4 'and 5, 5' will be referred to below as respective joints

soil and boom.

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

pieces 4, 4 'and 5, 5'.

  The other two joints 6, 6 'and 7, 7', called under-

  smooth for the reasons which will be understood below, comprise for one (6, 6 '), a threaded ring 8, 8', and for the other (7, 7 '), a

smooth ring 9, 9 '.

  The rings 8, 8 'and 9, 9' of the joints 6, 6 'and 7, 7'

  are crossed by the sub-rail formed by at least one rod 10.

  The rod 10 here has threaded parts i Qa and parts

ties l Ob smooth.

  The threaded parts l Oa are intended to cooperate with the threaded rings 8, 8 'and the smooth parts l Ob to pass through freely

the rings 9, 9 '.

  In this way, it is understood that a rotation of the rod 11 of the sub-rail makes it possible, by screwing and unscrewing, to bring together or separate

  joints 6 and 7, 6 'and 7' and at the same time of course respecti-

  move aside or bring joints 4 and 5, 4 'and 5' closer together

  and therefore to raise or lower the arm 2 and the rod 10 of the

  smooth. To ensure this rotation, a motor 11 has been provided here.

  electric, hydraulic, pneumatic, or other.

  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-arm rod has several functions here.

  It first constitutes a necessary, even obligatory, sub-rail

  roof for protection, but also a control and

barrier blocking.

  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 addition, other position locking means can be

  provided, as shown, for example, in Figure 4.

  In this embodiment of Figure 4, 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 sub-arm rod 10 '.

  In addition, in this embodiment, a counterweight 16 forces the sub-plate 10 'to be presented in such a way that the notches 14, 15

  which it is provided with 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 while 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 stringer 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 4, 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 in this each effect a coupling groove 16 ', as shown in the figure

  4 In addition, in this case, it is also possible to provide a locking means.

  ge of 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 one element.

  FIG. 5 shows a barrier of the type of that of FIGS. 1 to 3, but the sub-stringer 10 of which is in several sections connected between

  them by fittings, such as fitting 17, here of Cardan type.

  Such an arrangement allows in particular to make elbows as shown schematically the barrier of Figure 6 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 6 already shows an application Figures 7 to 11

  show other possible applications.

  With two barriers as described, one can, for example,

  protect a garage pit 18, as shown in Figure 7.

  Figures 1 to 7 show a base 1 formed of a T-shaped iron

  overturned (Figure 7) or L-shaped (Figure 6) and therefore constituting a plin-

  tea. FIGS. 8 to 11, on the other hand, show a U-shaped base 1. The base 1 in FIG. 8 is intended to be placed in an excavation, or as here between two elements 19, 20 forming ramps. We then understand that the entire barrier can fold back into the base 1, the assembly forming, for example, a retarder (the smooth

  2 being wide enough to cover the base 1).

  In the application of FIG. 9, only one ramp element 19 is provided, the barrier being, for example, intended for a landing quay.

  FIGS. 10 and 11 show a barrier as previously

  ment 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 may be a barrier

forming a portal, for example.

  To actuate the barrier, there is provided here at least one jack 23 arranged in at least one of the uprights, said jack being intended

to act on the rail 2.

  As in the case of Figure 8, the base is mounted between

  two elements 19, 20 forming ramps.

  Furthermore, as shown more particularly in FIG. 11,

  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 lock the vehicle from below.

  It is obvious that in this case, one can not foresee the articula-

tion only on one side.

  In addition, the element intended to rise can be equipped with a crutch which unfolds at the time of pivoting to prevent it

  return to initial position without special intervention.

Claims (13)

  1) Extensible barrier comprising at least one stringer (2) and a sub-stringer (10,10 '), characterized in that the stringer (2) is supported by at least two mechanical diamonds (3,3') spaced apart from one the other and each formed of four arms hinged together by their   ends, in that the arm (2) is fixed on one of the articulations   tions of each rhombus, called heald joint (5.5 '), the articula-   diametrically opposite tion, called ground articulation (4,4 '), being intended to be fixed to the ground or to an element (1) to be fixed or placed on the ground, while the sub-rail is constituted by a rod (10, 10 ') parallel to the heald which crosses the two other articulations (6,7; 6', 7 '; 6 ", 7") of each rhombus, called heald articulations, and that a blocking system is provided to block the barrier in at minus a 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 (6,6 ') for each rhombus, a threaded ring (8,8'), intended to engage with a threaded part (i Oa) of the rod sub-beam (10,10 ').   3) Barrier according to claim 2, characterized in that a rotational drive means (11) is further provided to be in   taken with the sub-arm rod (10,10 ') so that the rotation   tion of this will result in the spreading, or reconciliation, of   sub-arm joints (6,7; 6 ', 7') and vice versa   spacing or spacing of the hinge (5.5 ') and ground joints (4.4 ').   4) Barrier according to one of claims 2 and 3, charac-   sée in that the sub-rail rod (10,10 ') has for each rhombus (3,3') a threaded part (10 a) for only one (6,6 ') of the sub-rail joints of said rhombus and a smooth part   (10 a) for the other sub-arm joint (7,7 '), this comprises   both a ring (9.9 ') in which said sub-rail rod can slide freely.   5) Barrier according to claim 1, characterized in that the blocking system comprises for each diamond and on at least one of the sub-hinge joints (6 ", 7"), a pawl (12,13) intended to come into engagement with at least one notch (14,15) formed on the rod (10 ') of the sub-rail, which is made rotatable to be able to   release 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-rail in a position in which the notches (14,15) which it   is fitted, 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 as desired, while a means for locking in rotation can be provided on the minus one of said basic barriers.   8) Barrier according to one of claims 1 to 7, characterized   in that the sub-arm rod has several connected sections   between them by articulated connections (17) thus making it possible to   kill a broken line barrier.   9) Barrier according to one of claims 1 to 8, characterized   in that the ground articulation (4,4 ') is fixed to a base (1) formed   mant at least one plinth, said base being intended to be fixed or to rest on the ground.   ) Barrier according to claim 9, characterized in that the base (1) has the shape of a U.   11) Barrier according to one of claims 9 and 10, character-   sée in that the base (1) is intended to be disposed in an excavation tion provided for this purpose.   12) Barrier according to claim 11, 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 (23.24 ) 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.   13) Barrier according to one of claims 1 to 12, charac-   sée in that the ends of the heald (2) are slidably mounted   in two lateral uprights (21,22).   14) Barrier according to claim 13, characterized in that means (23) are provided in at least one of the uprights (21,22)   to activate the barrier by acting on the arm (2).