FR2913668A1 - Bag i.e. big-bag, filling assisting device for use during e.g. interior work in building, has posts articulated at base, where each post is equipped with hooking unit to hook handle of bag and to maintain bag open in suspended position - Google Patents

Abstract

The device has a base forming a support, and three foldable posts (6) articulated at the base. The posts are moved between a folded storage position and usage raised position. Each post is equipped with a hooking unit (17) near its top for hooking a handle of a bag and for maintaining the bag open in suspended position. The base and the posts are connected by a pivot connection that allows pivoting displacement and translational displacement of the posts.

Description

The present invention relates to the field of devices for assisting

  filling of large bags. For several years, large bags have been used, called big-bags, made of highly resistant flexible material intended for the evacuation, storage and / or transport of bulk materials, such as earth, sand, gravel, rubble. .., in very varied areas such as roads, interior or exterior work, in the building, homes. These bags, generally of cubic shape, the capacity of which can reach 1 to 2 m 3, are provided at the four corners handles forming handles 10 for their handling. When filling, these bags must be kept open. For this purpose, in the factory, the support and holding devices in the open position are rigid mechano-welded assemblies generally consisting of tubular uprights surmounted by a hopper at the top. These are very bulky devices that can not be moved easily. On the exterior sites, the staff uses metal stakes whose base is driven into the ground and which retain, at their top, the handles so as to spread the walls of the bag and facilitate the filling of the latter. In places where it is not possible to drive such stakes into the ground (hard or fragile ground, 20 rehabilitation work inside buildings, for example), it is necessary to provide a person to maintain the ground. open bag, which poses risks of injury related in particular to the materials to be evacuated. There is therefore a real need to provide a device for helping to fill such bags. It is therefore an object of the present invention to provide a simple, inexpensive and low hanging device which is also self-contained and usable without tools and without deterioration of the ground. This device must, in addition, be able to be implemented quickly and by one person. For this purpose, the present invention provides a bag-filling device of large size, big-bag type, provided with handles forming handles, characterized in that it comprises a base forming a base surmounted by minus three amounts hinged to said base and movable between a folded storage position and an upright position of use, each upright being equipped, in the vicinity of its top, of a fastening member of a loop of the bag held suspended.

  The collapsible amounts give the device a minimal footprint. Advantageously, the base and the uprights are connected to each other by means of a pivot connection allowing a pivotal movement about an axis substantially parallel to the plane of the base and a displacement in translation of amounts in a direction parallel to their longitudinal axis, so as to ensure locking or unlocking of said pivot connection. The locking allows, in particular, to ensure the uprights a position held substantially vertical when filling the bag.

  According to a first embodiment of the invention, the amount is, at least at its lower part, a hollow body which, in upright position of the upright, cap a stud projecting from said base ensuring the locking of the pivot connection. Said stud is preferably disposed in the immediate vicinity of an axis 20 bent around which pivots the amount. According to a second embodiment of the invention, on the upper face of the base, is formed a housing defined by two parallel cheeks forming axis bearing and by two ties connecting the two cheeks, for receiving the amount and to . constitute abutments for maintaining said upright in upright position. Advantageously, the two sleepers are located at a level between the base and the pivot axis of the upright, so as to allow, after unlocking, the pivoting of the upright in two opposite directions, one towards its position of storage, the other to a position 30 allowing the release of the bag after filling.

  Indeed, when the bag of flexible material is filled, its walls are often bulged outwardly and prevent its easy release from the filling aid device. The possible pivoting of one or more uprights in two opposite directions makes it possible to release the bag when it has crowded walls. According to other advantageous features of the invention: the base is in the form of a polygon, said uprights being arranged, in erect position, in the vicinity of the polygon's vertices; in the folded position, the uprights are arranged along the sides of said polygon; the base consists of an assembly of profiles forming a frame; the hooking member of a handle of the bag is a bent piece protruding fixed in the extension of the top of a first amount, able, in the folded position of the amounts, to hold in place one of the amounts adjacent to said first amount, especially during transport. The invention will be better understood on reading the following description of exemplary embodiments with reference to the accompanying drawings, in which: FIG. 1 is a general perspective view of a bag filling aid device according to the present invention; invention; FIGS. 2A and 2B are partial perspective views of the first embodiment of the invention respectively showing the upright upright (FIG. 2A) and folded position (FIG. 2B); Figs. 3A and 3B are partial perspective views of the first embodiment presented at a different angle than Figs. 2A and 2B; FIGS. 4A and 4B are partial perspective views of the second embodiment of the invention respectively showing the upright (FIG. 4A) and folded position (FIG. 4B); Figure 5 is a partial perspective view of the pivot connection according to a first variant of the second embodiment of the invention; Figure 6 is a partial perspective view of the pivot connection according to a second variant of the second embodiment of the invention; Figure 7 is a partial perspective view of the top of a post equipped with a removable fastening member; Figure 8 is a partial perspective view of the top of a post equipped with a removable attachment member and adjustable in height; Figure 9 is a perspective view of the device of the invention, according to the first embodiment, in the folded state; Fig. 10 is a perspective view of the device of the invention according to the second embodiment in the folded state; FIG. 11 is an enlargement of detail C of FIG. 10. As mentioned above, the device that is the subject of the invention is intended to aid the filling of a bag 1 of large size, of the big-bag type. , Comprising a bottom 2 and side walls 3 made of flexible material woven flexible very strong, and provided in its upper part handles 4 forming handles. The capacity of these bags can reach 1 to 2 m3. According to the invention, the aid for filling such bags 1 comprises a base 5 forming a base surmounted by at least three uprights (if the bottom of the bag is triangular for example), four uprights 6 in the example presented. In Figure 1. The base consists of either a plate or, as in the illustrations shown, an assembly of profiles 7 forming a polygonal frame. Each of the uprights 6 is equipped, in the vicinity of its top, with an attachment member 17 of the handles, 4 so as to keep the bag 1 open, in the suspended position, the bottom 2 of the bag 1 being able, after filling, whether or not to rest on said base 5. Each upright 6, is articulated to said polygonal base 5, by means of a pivot connection, and is movable between an upright position (as shown schematically in FIGS. 1, 3A and 6, and in FIG. dotted in FIGS. 9 and 10) preferably located near the vertices of the polygon, and a folded storage position (see in particular FIGS. 9 to 11, and FIGS. 2B, 3B and 4B), towards the center of the polygonal base 5, or along the segments thereof, as shown in Figures 9 and 10. According to a first embodiment of the invention, shown in Figures 2A, 2B and 3A, 3B, the amount 6 is mounted rotating around a bent axis disposed in the immediate vicinity of a stud 9, the 10 axis bent and the stud 9 being fixed to the upper face of the base 5. Said upright 6 affects, at least in its lower part, the shape of a hollow body 12 (visible in particular in Figure 3B). In the lower walls of the upright 6 are provided two oblong slots 11 intended to receive the axis 10, and to allow on the one hand a rotational movement R of the upright 6 about the axis 10, and on the other hand a displacement of said amount in translation T with respect to the base 5. Thus the upright 6 comes, in erect position, to cover said stud 9. The upright 6 can consist for example of a tube or a hollow section, and the stud 9 respectively be of square or circular section in the interior volume of the amount, so as to maintain and thus ensure the locking of the upright 6 upright.

  For the release of said upright 6, it is moved in translation away from the base 5 above the stud 9, and once the hollow body 12 clear of the stud, the amount is rotated around the l axis 10 to be placed in the folded position, substantially parallel to the upper face of the base 5 or inclined towards the latter (as shown in Figures 2B and 3B). According to a second embodiment of the invention, shown in FIGS. 4A, 4B, 5 and 6, two parallel cheeks 13, fixed substantially perpendicular to the upper face of the base 5, support an axis 14 substantially parallel to the plane of the base 5.

  In a first variant illustrated by FIGS. 4A and 4B, the axis 14 is integral with the two cheeks 13 and the upright 6 is equipped (as in the first embodiment) with two oblong slots 11 facing each other, arranged at the 6. In a second variant illustrated in FIGS. 5 and 6, the axis 14 is integral with the upright 6 and oblong slots 15 perpendicular to the base 5 are formed in the cheeks 13 in order to receive in these two variants, the lights 11 or 15 allow on the one hand the pivoting of the upright 6 about said axis 14 and secondly a translation displacement along the longitudinal axis of said amount. During this movement, the upright 6 is inserted into a housing delimited by the two cheeks 13 and 10 by two cross members 16 connecting said cheeks, constituting stops for holding the pivot connection of said upright in upright position and thus locking. The two crosspieces 16 are positioned at a level between the base 5 and the axis 14 of pivoting of the upright 6, so as to allow, after unlocking the pivot connection by moving the upright to the top of said housing, its pivoting in two opposite directions, parallel to the cheeks 13: one to its storage position, the other to a position deviating from the polygon formed by the base and allowing the release of the bag. Indeed, if after filling, the release of the bag 1 is made difficult because of a bulge of its side walls 3 coming to rest on the uprights 6 erected, it is thus possible, thanks to the particular structure of the device of the present invention, after unlocking the pivot connection, by lifting the lower portion of said amount, either above the stud 9 projecting from the base 5, or out of the housing defined by the cheeks 13 and the cross members 16, to separate said 6 outward amount (according to the position shown in dashed lines in Figures 2B, 3B and 4B, as well as in Figures 9 and 10), and to release the bag 1. In upright position, the amounts can be arranged substantially perpendicularly to the plane of the base 5, or preferably slightly inclined outwardly of the polygon, so as to promote the opening of the bag 30 and its release once filled.

  Such an inclination can be obtained, for example, by an inclination of the stud 9 towards the outside, or by a positioning of the "outer" crosspiece 16a, closer to the base 5 than the "internal" crosspiece 16b, or by any suitable form of the stud 9 or crosspieces 16.

  The very simple and refined connection, between the upright 6 and the base 5 of the device according to the present invention, allows its easy cleaning, materials such as dust, gravel or otherwise frequently contaminate this area when filling the bag. In addition, the galvanizing step, if the various parts of the device are made of metal, is facilitated because the structure has no recess in which could come to lodge deposits, detrimental to the articulation and the locking of the uprights 6 The fastening member 17 of each loop 4 of the bag 1 is fixed, for example by welding, close to the top of each upright 6, either directly on the said upright, or on a piece 18, of sheath type, sliding along the upright, as illustrated in Figures 7 and 8. Such a slider 18 allows in particular an adjustment of the position of the fastening member 17 by means for example of a butterfly screw 19 or a pin 20 , associated with notches or holes in the upper part of the upright. The uprights 6 can thus adapt to different heights of bags 1. Said sliding piece 18 also has the advantage of easy release of the handles 4 after filling the bag, and after removal of said piece 18, a smaller footprint the amount during storage. Advantageously, the hooking member 17 is a bent piece (as shown in Figures 7 and 8) projecting in the extension of the top of a first upright, so as to hold in place, in the folded position of the uprights , one of the amounts adjacent said first amount., as visible in Figures 9, 10 and 11. The uprights 6 are thus retained against the plane of the base 5 during transport.

  The device according to the present invention is both very light, because it can be made in the form of profiles, and very compact, which facilitates its handling and transport. On site, it allows the filling of big bags by one person, without additional tools, and without deterioration of the soil. Finally, of simple structure, for example in mechanically welded elements, its manufacture is inexpensive.

Claims (10)

  1. Device for filling bag (1) of large size, big-bag type, provided with handles (4) forming handles, characterized in that it comprises a base (5) forming a base surmounted by at least three uprights (6) articulated to said base (5) and movable between a folded storage position and an upright position of use, each upright (6) being equipped, in the vicinity of its top, with a body of hooking (17) of a handle (4) of the bag (1) kept suspended.   2. Device according to claim 1, characterized in that the base (5) and the uprights (6) are connected to each other by means of a pivot connection allowing a pivotal movement about an axis (10,14) substantially parallel to the plane of the base (5) and a displacement in translation of the uprights (6) in a direction parallel to their longitudinal axis, so as to ensure a locking, respectively an unlocking, of said pivot connection .   3. Device according to one of claims 1 or 2, characterized in that the upright (6) is, at least at its lower part, a hollow body which, in upright position of the upright, comes to cap a stud (9 ) protruding from said base (5) ensuring the locking of the pivot connection.   4. Device according to claim 3, characterized in that said stud (9) is disposed in the immediate vicinity of a bent axis (10) about which pivots the upright (6).   5. Device according to one of claims 1 or 2, characterized in that, on the upper face of the base (5), is formed a housing defined by two flanges (13) parallel axis bearing and by two sleepers (16) connecting the two cheeks (13), intended to receive the upright (6) and to constitute stops for maintaining said upright position.   6. Device according to claim 5, characterized in that the two crosspieces (16) are located at a level between the base (5) and the pivot axis (14) of the upright (6), so as to allow after unlocking, the pivoting of the upright in two opposite directions, one to its storage position 9, the other to a position allowing the release of the bag (1) after filling.   7. Device according to any one of the preceding claims, characterized in that the base (5) is in the form of a polygon, said uprights (6) being arranged in upright position in the vicinity of the polygon's vertices. .   8. Device according to claim 7, characterized in that, in the folded position, the uprights (6) are arranged along the sides of said polygon.   9. Device according to any one of the preceding claims, characterized in that the base (5) consists of an assembly of profiles (7) forming a frame.   10. Device according to any one of the preceding claims, characterized in that the fastening member (17) of a loop (4) of the bag is a bent piece projecting in the extension of the top of a first amount , 15 able, in the folded position of the amounts, to maintain in place one of the amounts adjacent to said first amount, especially during transport.