Sealed grab bar and a container provided therewith

Abstract

A container and a method of fabrication thereof, the container comprising side walls, a front wall and a back wall, the walls extending from a base wall to a top edge of the container, and defining an inner cavity, wherein the front wall comprises an upper part and a lower part recessed inward from the upper part, the lower part comprising facing walls extending inwardly from an external surface of the upper part to a recessed wall, the facing walls and the recessed wall extending downwardly to the base wall; each one of the two facing walls supporting an engaging element, the two engaging elements facing each other; and a grab bar is secured in rotation between the two facing walls, a first end thereof engaging with a first one of the engaging elements and a second end thereof engaging with a second one of the engaging elements.

Claims

1. A stackable container with a grab bar in complete fluid isolation from an inner cavity of the container, the container comprising: a base wall; walls extending from the base wall to an open end and defining the inner cavity; a grab bar; said grab bar comprising a body with opposite ends; wherein a pair of facing walls extends inwardly, from an external surface of a first one of said walls extending from the base wall, to a recessed wall, said facing walls and said recessed wall extending downwardly to the base wall, each one of said facing walls comprising a non-deformable engaging element, the two engaging elements facing each other on a rotation axis of the grab bar at a distance from said external surface of said first wall, at least a first one of said facing walls being adapted to flex outward from a second one of said facing walls into a grab bar securing position in which a first one of the engaging elements engages with a first end of the body of the grab bar and a second one of the engaging elements engages with a second end of the body of the grab bar; and said at least first one of said facing walls being adapted to be released to an operating position in which the grab bar is secured in rotation between the two facing walls at said distance from the bin relative to the external surface of said wall.

2. The container of claim 1, wherein said facing walls are integrally molded with the base wall and the walls extending from the base wall.

3. The container of claim 1, wherein said engaging elements are integrally molded with the base wall and the walls extending from the base wall.

4. The container of claim 1, wherein said engaging elements are rings.

5. The container of claim 1, wherein said engaging elements are disks.

6. The container of claim 1, wherein said engaging elements are male elements, said grab bar has a length from a first open end thereof to a second open end thereof of at most a distance separating the two facing walls, and of at least a distance separating facing free ends of the male elements.

7. A container comprising side walls, a front wall and a back wall, said walls extending from a base wall to a top edge of the container, and defining an inner cavity, wherein said front wall comprises an upper part and a lower part recessed inward from said upper part, said lower part comprising facing walls extending inwardly from an external surface of said upper part to a recessed wall, the facing walls and the recessed wall extending downwardly to the base wall; each one of the facing walls supporting a non-deformable engaging element, the two engaging elements facing each other; and a grab bar is secured i-non a rotation axis thereof between the facing walls, a first end thereof engaging with a first one of the engaging elements and a second end thereof engaging with a second one of the engaging elements, the engaging elements facing each other on the rotation axis of the grab bar at a distance from said external surface of said front wall.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) In the appended drawings:

(2) FIG. 1 is a perspective view of a container according to an embodiment of an aspect of the present disclosure;

(3) FIG. 2 is a detail of the front wall of the container of FIG. 1;

(4) FIG. 3 is a sectional view of the grab of FIG. 2;

(5) FIG. 4 shows a detail of FIG. 3;

(6) FIG. 5 shows a container before securing a grad bar thereto according to an embodiment of an aspect of the present disclosure;

(7) FIG. 6 is a top view showing connection of a grad bar to a container according to an embodiment of an aspect of the present disclosure;

(8) FIG. 7 shows the container of FIG. 5 after securing the grad bar thereto according to an embodiment of an aspect of the present disclosure;

(9) FIGS. 8A, 8B and 8C show steps of pulling-out test on a grad bar according to an embodiment of an aspect of the present disclosure;

(10) FIGS. 9A-9Q show results of resistance to the pulling-out test on a grad bar according to an embodiment of an aspect of the present disclosure; and

(11) FIGS. 10A-10B show handling of a bin by an automated arm at different angles according to an embodiment of an aspect of the present disclosure;

(12) FIGS. 11A-11B show handling of a bin by an automated arm at different angles according to an embodiment of an aspect of the present disclosure;

(13) FIGS. 12A-12B show handling of a bin by an automated arm at different angles according to an embodiment of an aspect of the present disclosure; and

(14) FIGS. 13A-13B show handling of a bin by an automated arm at different angles according to an embodiment of an aspect of the present disclosure.

DESCRIPTION OF ILLUSTRATIVE EMBODIMENTS

(15) The present invention is illustrated in further details by the following non-limiting examples.

(16) FIG. 1 shows a container comprising a bin (B) defining an inner cavity, and a lid (L) rotatably connected to the bin (B) at a first end thereof and movable between an open position (not shown) giving access to the inside of the cavity and a closed position, illustrated in FIG. 1, preventing access to the inside of the cavity for example.

(17) The bin (B) comprises a base wall 39, and lateral walls including side walls 43, 47, a front wall 45 and a back wall 47, extending from the base 39, defining the an inner cavity.

(18) The front wall 45 of the bin (B) comprises a recess formed laterally by two facing walls 42, 44 extending inwardly from the surface of the front wall 45 of the bin (B), at a height h2 from the base 39, to a recessed wall 46, the recessed wall 46, as well as the two facing walls 42, 44, extending from this height h2 from the base 39 to said base 39 each in a same plane. A grab bar 10 extends between the two facing walls 42, 44, at a distance (d) from the external surface of the recessed wall (see FIG. 6).

(19) The grab bar 10 comprises a generally tubular body 12, which may be hollow as illustrated, with ends 20, 22.

(20) As illustrated for example in FIGS. 2, 3, 4 and 5, each facing wall 42, 44 comprises an engaging element, such a male element such as a protuberance or a knob 24, 26 for example, within the recess formed by the two facing walls 42, 44 and the recessed wall 46 as discussed hereinabove, at the distance (d) from the external surface of the recessed wall 46 (see FIG. 6), at a height (h2) relative to the base 39 of the bin (B), i.e. facing each other so as to provide a rotation axis for the grab bar at the height (h1) relative to the base 39 of the bin (B). The height (h1) is typically selected so that the distance h=h2-h1 between the rotation axis for the grab bar and the top 37 of the recess formed by the facing walls 42, 44 and the recessed wall 46 allows rotation of the grab bar and gripping the grab bar (see for example FIG. 8C).

(21) The engaging element 24, 26 may be a male element, such as ring as illustrated herein or a disk or a knob, projecting from an outer surface of the wall 42, 44. Each male element 24, 26 has a length (H) from the outer surface of its respective wall 42, 44 (see FIG. 4). The grab bar 10 as a length of at most a distance separating the two facing walls 42, 44, and at least a distance separating the facing free ends of the knobs 24, 26.

(22) Alternatively, the engaging element 24, 26 may be a female element, i. e. a recess within the thickness of the facing wall 42, 44, adapted for receiving the ends 20, 22 of the grab bar.

(23) The two facing walls 42, 44 extending outwardly from an external surface of the front wall 46 of the bin (B) are flexible between a grab bar insertion position and an operating position of the bin (B) as will be described hereinafter in relation to FIGS. 5-7 for example.

(24) The respective length of the grab bar 10 and of each one of the knobs 24, 26 are selected to provide engagement of the knobs within the open ends 20, 22 of the bar 10 once the walls 42, 44 are released to the operating position of the bin (B), so that the bar 10 does not disengage therefrom upon use of the container, as will be discussed hereinbelow.

(25) The knobs 24, 26 may be integrally molded with the bin (B).

(26) As shown in FIGS. 5-7 for example, when the bin (B) formed with knobs 24, 26 is just removed from the mold, before complete cooling thereof, the facing walls 42, 44 may be manually flexed outwards from one another so as to be pulled apart from one other (see arrows in FIG. 6), into the grab bar insertion position allowing inserting the grab bar 10 therebetween and engaging the knobs 24, 26 within the respective open ends 20, 22 of the grab bar 10. Once the demolded bin is cooled and mold shrinkage has occurred, the facing walls 42, 44 may still be flexed outwards by force, using a tool for example.

(27) Once the grab bar 10 is secured within the space between the two facing walls 42, 44 and the separating pressure between the two facing walls 42, 44 is released (see FIG. 7), in the operating position of the bin (B), the bar 10 is secured in rotation between the two facing walls 42, 44 and in complete fluid isolation from the cavity, i.e. from the inside of the bin (B) of the container, the walls forming the inner cavity being all exempt of aperture to the exterior of the bin.

(28) In the operating position of the bin (B), the bar 10 is locked into position to the bin (B), while free in rotation about the rotation axis formed by the facing elements 24, 26 within the space between the two facing walls 42, 44, entirely externally from the inside of the bin (B) (see FIGS. 3, 4, 6), and each wall 42, 44 defines a same plane above and below the bar 10 (see FIGS. 1, 2). As a result, as may be seen from FIG. 6, the bar connection region of the bin does not interfere when stacking containers one inside the other.

(29) The bar 10 is in complete fluid isolation from the cavity, i.e. from the inside of the bin (B) of the container 100, so that when the container is tipped over for discharging from the front thereof in the open position of the lid (L), there is no spilling of leachate from side walls of the bin (B).

(30) The bin is typical injected molded in polyethylene for example. The grab bar may be a rolled metal member, or a pultruded or extruded plastic member for example.

(31) FIG. 9. show results of tests of resistance to pulling-out of a metal grab bar according to an embodiment of an aspect of the present disclosure, when submitted to rough handling by garbage truck automated arms as known in the art. The tests consisted in cycles of handling with a Bayne truck automated arm operated a pressure of about 1500 psi, using an empty bin positioned within the automated arm (see FIG. 8). An emptying cycle was started, in conditions of extreme shaking, i.e. rough handling preventing full cycles, thereby only allowing abrupt and interrupted and accelerated cycles. The test was stopped every 250 cycles to assess the damages to the bin, and, in absence of crevices on the front wall of the bin, for example in the area of the recess formed by the two facing walls 42, 44, the test was resumed. FIG. 9 show the front wall of a bin thus tested, after 250, 500, 750, 1000, 1250, 1500, and 2000 cycles. As can be seen, the surface finish of the grab bar was only merely altered and no fatigue ou crevice could be seen on the bin.

(32) Another series of tests were performed to assess whether a metal grab bar according to an embodiment of an aspect of the present disclosure withstands handling of the bin by an automated arm picking the bin up at an angle of 45 degrees (see FIG. 10 B and FIG. 12) as opposed to the normal pickup up position (See FIG. 10A and FIG. 11). For a pick up at 45 degrees although the bin deforms, the grab bar remains in place and connected to the bin by the knobs 24, 26 at the end of 260 cycles (FIG. 13). Note that the bin used for these tests was the same as previously used for the grab bar pull-out test described hereinabove in relation to FIGS. 8-9, and has therefore already been submitted to rough handling.

(33) The scope of the claims should not be limited by the embodiments set forth in the examples, but should be given the broadest interpretation consistent with the description as a whole.