Extending barrier on rollers with manually extensible and retractable pivoting elements

Abstract

Extending barrier on wheels consisting of modular elements ( 1 ) swiveling with respect to one another of light alloy with anti-corrosion treatment, all identical and each having two vertical arms ( 14. 15 ) forming an X and swiveling at their center and ends on the following element rendering it extensible and folding manually; with modular end pieces ( 1 A. 5 ) each provided with a means of attachment, preferably locking, each to a fixed point on the site (S 1 , S 2 ) for its immobilization in the extended position between these fixed points.

1 - Extending barrier on wheels characterized in that it comprises pivoting modular elements forming an X of corrosion-proof treated light alloy, each identical and each comprising two vertical arms, the main arm ( 14 ) and the secondary arm ( 15 ), swiveling at the center on vertical pin ( 65 ) of main arm and at the ends on the following elements, rendering it manually extendible and folding and whereby the end elements ( 1 A,  5 ) of the barrier are each provided with attaching means ( 3 , 4 , 7 , 8 ), preferably locking, each at a corresponding fixed point on the site for immobilization in the extended position between said fixed points, or secured to it, preferably anchored provisionally or otherwise and whereby the secondary arm ( 15 ) consists of vertical bars ( 18 ) swaged at the ends into two horizontal profiles ( 20 ) and main arm ( 14 ) comprising vertical bars ( 17 ) attached to two horizontal profiles ( 16 ) each by means of four screws ( 75 ).  
     
     
         2 - Extending barrier according to  claim 1 , characterized in that the two ends each terminate in a complete X-shaped modular element ( 1 A), in that these end elements of said module each include at least two means ( 3 ,  4 ,  95 ) of attachment in the deployed position to a corresponding fixed point of the site, said attachments working together as a means of limiting the extension of the barrier, and as lateral stabilizes.  
     
     
         3 - An extending barrier according to  claim 1 , characterized in that the two ends each terminate in a special modular element ( 5 ) consisting of a normal V-shaped half element swiveling as a triangle and provided in the articulating part with at least one means of attachment ( 7 ,  95 ) to the corresponding fixed point of the site.  
     
     
         4 - An extending barrier according to  claim 3 , characterized in that its means of deployment limitation between two site attaching points consists of at least one chain ( 22 ) stretched between two arms ( 14 ,  15 ) of at least one modular element.  
     
     
         5 - An extending barrier according to  claim 3 , characterized in that its means of limiting deployment between two site attaching points consists of two identical connecting rods, articulating together, and between the pivots of the two successive X-shaped modular elements.  
     
     
         6 - An extending barrier according to one of the previous claims, characterized in that each of the wheels ( 10 ,  11 ) is attached to the end of a sliding pin in a tube integral with the corresponding modular element including a high stop defining the normal retracted position on each of these wheels, the low position, variable according to the change in level of the site, being maintained by a self-locking means on the wheel-holder pin, in the low position or in the high position.  
     
     
         7 - An extending barrier according to  claim 1 , characterized in that the reinforcement of lateral stability is obtained by a means of assembling modular elements ( 25 ) including two main and secondary X-shaped vertical arms, in which two arms on the same side are extended by one pitch step ( 29 ) beyond the end of the arms of the normal modular element, said extended arms including a fourth pivot at their extended end for assembly on the following next identical modular element or a special end module ( 26 ,  27 ,  28 ).  
     
     
         8 - An extending barrier according to  claim 7 , characterized in that when it comprises an assembly of reinforced lateral stability modular elements ( 25 ), it has a special modular element ( 40 ) at the lefthand end and a symmetrical righthand end ( 41 ), each including an arm ( 33 ) of the normal modular element working together with an arm ( 30 ) of the special modular element, so that said arms of this special modular element terminate in the same vertical perpendicular plan (S 1 ) at the longitudinal axis of said barrier, while the free end of the normal module arm swiveling on a short arm ( 31 ), swiveling at the end of the extended arm of the next modular element means that the ends are each provided with means of attachment ( 3 ,  4 ,  95 ) with or without a lock to the fixed part of the site, for the immobilization of said barrier.  
     
     
         9 - An extending barrier according to claims  7  and  8 , characterized in that it comprises an assembly of modular elements ( 25 ) with reinforced lateral stability and has two special module end elements ( 26 ,  27 ), each consisting of an arm ( 30 ) of the normal modular element swiveling on a short arm ( 31 ) by a pitch length to form an end triangle having at least one means of attachment ( 4 ) to a fixed point of the site, while the other end ( 27 ) of said barrier also includes a normal arm ( 36 ) swiveling at the middle of arm ( 30 ).  
     
     
         10 - An extending barrier according to one of claims  7 ,  8  and  9 , characterized in that it comprises an assembly of modular elements ( 25 ) with reinforced lateral stability, with two ends ( 26 ,  27 ) forming a triangle, one of the ends of which ( 26 ) pivots on an intermediate modular element ( 28 ) whose secondary arm ( 34 ) is shorter by one pitch step than that of module ( 25 ).  
     
     
         11 - An extending barrier according to one of  claims 1  to  10 , characterized in that the horizontal profile ( 16 ) of the modular element arm ( 14 ) is U-shaped, and for which the upper part ( 48 ) of the vertical flanges is sloped toward the inside to facilitate the engaging of bosses ( 46 ) used for clipping the handrail profile ( 12 ) on the angles ( 47 ), while the core ( 48 ) is punched at the articulation points of the modular element arms, and in the longitudinal axis with holes ( 49 ) providing passage for the articulation pins and attaching holes for the bars ( 17 ).  
     
     
         12 - An extending barrier according to  claims 1  to  11 , characterized in that the profile ( 20  of the arms ( 15 ) of the modular elements and cover ( 50 ) are U-shaped, and for which the free end ( 51 ) (FIG. 18) of the flanges is folded at right angles toward the inside, then folded back again at a right angle ( 52 ) toward the top, each terminating in a clipping boss ( 53 ) and having lower angles ( 54 ) either rounded or broken, and core ( 57 ) punched with holes accommodating the bars ( 18 ), then swaged at ( 115 ,  116 ) inside profiles ( 20 ) at top and bottom and at the pivots with a hole, also punched, to accommodate a bar ( 15 ) without swaging, through which a pivot pin ( 65 ) passes and whereby its cover ( 50 ) is also an inverted U-shape section whose short and finned flanges ( 55 ) terminate in a clipping boss ( 56 ) complementary to those of profile ( 20 ).  
     
     
         13 - An extending barrier according to one of  claims 1  to  12 , characterized in that the bar profile ( 18 ) is rectangular in section with rounded angles, while the middle of the lower face of the two smaller sides includes a screw recess ( 60 ) for attachment using one of the four screws ( 75 ) between profiles ( 16  and  20 ).  
     
     
         14 - An extending barrier according to one of  claims 1  to  13 , characterized in that the pivot of the arms ( 14 ,  15 ), between the profiles ( 16 ) of the main arms ( 14 ) and the profiles ( 20  and  50 ) of the secondary arms ( 15 ), provided with their crimped bars ( 18 ), is a pin ( 65 ) engaging in the corresponding holes of the profiles, while nuts ( 66 ,  67 ) have been installed and brought up against the profiles ( 16 ) at the same time as washers ( 68  and  69 ) allowing a slight pivoting clearance between nuts ( 66 ,  67 ) and washers ( 68 ,  69 ) so that the secondary arms ( 15 ) may pivot smoothly on bearings ( 64 ) of pivot pin ( 65 ), flat washers ( 70 ) and locking washers ( 71 ), placed on the threaded ends of the pin ( 65 ) and nuts ( 72 ) being locked on the washers to immobilize pin ( 65 ) on arms ( 14 ).  
     
     
         15 - An extending barrier according to one of  claims 1  to  14 , characterized in that the ends of secondary arms ( 15 ) have a retraction plate arrangement ( 84 ) for bearing on the floor provided with a means of quick locking ( 86 ) in the idle position, or bearing on the floor.  
     
     
         16 - An extending barrier according to one of  claims 1  to  15 , characterized in that the length can be of any dimension and obtained by the assembly of as many normal or special X-shaped modular elements ( 90 ,  91 ,  92 ) as necessary with end elements including attaching means ( 93 ) which may be locked by a padlock ( 102 ) or by a lock.  
     
     
         17 - An extending barrier according to one of  claims 1  to  16 , characterized in that its transport and provisional setting up on a site, for a considerable length, is by several sections ( 90 ,  91 ,  92 ) folded and easily loaded on a truck with a forklift truck, whereby said sections are assembled together by an interconnecting plate ( 93 ,  98 ) made integral with special parts ( 95 ) closing the profiles ( 16 ) extending on the outside by a plate ( 96 ) drilled with a large hole ( 97 ) corresponding to a matching hole in plate ( 98 ), in which is inserted a shouldered pin ( 109 ) and whereby a padlock hasp is engaged in a hole ( 103 ) drilled in the end of the pin ( 101 ) preventing unauthorized opening.  
     
     
         18 - An extending barrier according to one of  claims 1  to  17 , characterized in that the means of attachment between the end closing parts ( 95 ) and the corresponding fixed points on the site consists of a clevis ( 107 ), in which pin ( 101 ) is inserted and locked by a padlock ( 102 ) and in that clevis ( 107 ) is extended by a threaded pin ( 108 ) inserted in the hole of a plate or metal post ( 109 ) and locked to said plate by means of four nuts ( 110 ) after the interposition on either side of plate ( 109 ) of tapered washers ( 111 ) damping the efforts brought to apply against the barrier.  
     
     
         19 - An extending barrier according to one of  claims 1  to  17 , characterized in that for its deployment in exhibition areas where the floor is carpeted, it has no wheels, said barrier bearing solely on its plates which are larger in this case and designed to slide on the carpet.  
     
     
         20 - An extending barrier according to one of  claims 1  to  19 , characterized in that the gaps between the bars ( 17 ,  18 ) may be closed by any means such as cladding metal, corrugated iron, plastic panels, whether opaque, transparent or translucent, of laminated glass or light alloy, inserted into beading embedded in the small profiles of the standard light alloy U sections, anti-corrosion treated and attached to the smaller sides of bars ( 17 ,  18 ).