Abstract
The present invention relates to a big bag having a body having a plurality of sidewalls, an open top end, a closed bottom end, and a perimeter, wherein each one of the sidewalls connects with an adjacent sidewall forming a corner; a plurality of handles, each handle is connected to a corresponding corner; and a central handle connected to a middle section of the closed bottom of the body, wherein the central handle protrudes from the perimeter of the body.
Claims
1. A big bag comprising: a body having a plurality of sidewalls, an open top end, a closed bottom end, and a perimeter, wherein each one of the sidewalls connects with an adjacent sidewall forming a corner; a plurality of handles, each handle is connected to a corresponding corner; a central handle connected to a middle section of the closed bottom end of the body; and wherein the central handle protrudes from the perimeter of the body.
2. A big bag comprising: a body having a plurality of sidewalls, an open top end, a closed bottom end, and a perimeter, wherein each one of the sidewalls connects with an adjacent sidewall forming a corner; a plurality of handles, each handle is connected to a corresponding corner; and at least one pivot device connected to the closed bottom end on an outer side of the big bag.
3. A big bag comprising: a body having a plurality of sidewalls, an open top end, a closed bottom end, and a perimeter, wherein each one of the sidewalls connects with an adjacent sidewall forming a corner; a plurality of handles, each handle is connected to a corresponding corner; and wherein the closed bottom end is removable.
4. The big bag according to claim 1, wherein the big bag is reusable.
5. The big bag according to claim 2, wherein the big bag is reusable.
6. The big bag according to claim 3, wherein the big bag is reusable.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0018] FIG. 1 shows different version of the big bag according to the prior art;
[0019] FIG. 2 shows the different steps used by the prior art to load and unload the big bags;
[0020] FIG. 3 shows the different steps used by the prior art to handle the bags inside a storage center for grains;
[0021] FIG. 4 shows the different steps used by the prior art to handle the bags inside an oil well center;
[0022] FIG. 5a shows a version of the big bag according to the present invention;
[0023] FIG. 5b shows a version of the big bag according to the present invention;
[0024] FIG. 5c shows a version of the big bag according to the present invention;
[0025] FIG. 5d shows a version of the big bag according to the present invention;
[0026] FIG. 5e shows a version of the big bag according to the present invention;
[0027] FIG. 5f shows a version of the big bag according to the present invention;
[0028] FIG. 6a shows the system according to an embodiment of the present invention;
[0029] FIG. 6b shows a top view of the system of FIG. 6a;
[0030] FIG. 6c shows the big bag of being use with the system of FIG. 6a;
[0031] FIG. 6d is an exploited view of the FIG. 6c;
[0032] FIG. 7a shows a system according to an embodiment of the present invention showing the big bag with hooks attached to the bottom of the big bag;
[0033] FIG. 7b shows a system according to an embodiment of the present invention showing the big bag with a side pocket attached to the bottom of the big bag;
[0034] FIG. 8a shows the system according to an embodiment of the present invention to be use with the big bags of FIGS. 7a and 7b;
[0035] FIG. 9 shows a version of the big bag according to the present invention showing the big bag with a lateral discharge panel;
[0036] FIG. 10a shows a system according to an embodiment of the present invention showing the big bag with a bottom discharge panel;
[0037] FIG. 10b shows the system according to an embodiment of the present invention to be use with the big bag of FIG. 10a; and
[0038] FIG. 10c shows the big bag of FIG. 10a in an assembling position.
DETAILED DESCRIPTION OF THE INVENTION
[0039] Now we will give a brief explanation of the different types of bags listed above:
[0040] FIGS. 5a-5f show different version of the big bag 1 according to the present invention. The big bag 1 includes a body 2 having a plurality of sidewalls 3, an open top end 4, a closed bottom 5, and a perimeter 6, wherein each one of the sidewalls 3 connects with an adjacent sidewall forming a corner 7; a plurality of handles 8, each handle 8 is connected to a corresponding corner 7; and a central handle 9 connected to a middle section 10 of the closed bottom 5 of the body, wherein the central handle 9 protrudes from the perimeter 6 of the body 2.
[0041] The big bag 1 may be made of a flexible material, for example, polypropylene raffia fabric. The big bag 1 may have a cubic, rectangular, or conical shape. The sidewalls 3 may be may be sewn among themselves and to the closed bottom 5. The lifting handles 8 may be sewn in the vertices of said mouth of said container pocket, and also includes at least one central device of complementary mooring, of longform characteristics arranged in the inside of said bag, defined by at least one upper handle integrally linked to a first end of a sling and at the other distal end is associated with at least one pivot point adhered to the bottom of the base of said bag.
[0042] The Big bag 1 with the additional upper central handle 9 provides a holding point for the self-unloading of the bag.
[0043] FIGS. 6a-6d show the system 20 is used in combination with the big bag 1 according to the present invention. The system 20 according to an embodiment of the present invention includes a body 22 having a central point 26 and four arms 24, each one of the arms 24 includes a first end 24a connected to the central point 26 and a second end 24b projecting away from the central point 26, the body 22 has a cross shape. A hook 28 is connected to each one of the second ends 24b of the body 22. A main hook 30 is connected to the central point 26 of the body 22.
[0044] The system 20 holds the big bag 1 using five hooks, one in each of the four corners and a central one. When the bag is unloaded, the four hooks retract or open abruptly. The fifth hook remains closed holding the bag and allowing the immediate discharge of the bag by gravity. The activation of the hooks and rotation can be hydraulic, mechanical, magnetic, etc.
[0045] FIG. 7 shows the big bag according to an embodiment of the present invention, the big bag 30 includes a body 32 having a plurality of sidewalls 34, an open top end 36, a closed bottom 38, wherein each one of the sidewalls 34 connects with an adjacent sidewall forming a corner 40; a plurality of handles 42, each handle 42 is connected to a corresponding corner 7; and at least one pivot 44 that allows self-unloading of the bag. The incorporation of at least one pivot point (lateral or central) in the pocket at the bottom, and at least two attachment points at the top will allow self-discharge. The characteristic that determines the new bag is the use of at least two handles in the upper part, and one or more handles (including an extended handle) (central or lateral) in the lower part that facilitate the 180 degrees turn and the abrupt unloading of the bag.
[0046] FIG. 8 shows the mechanism of handling and unloading a reusable big bag of FIG. 7. This mechanism allows self-unloading of the bag. The mechanism 46 includes: a frame 47, two arms 48 (one in the inferior part and other in the superior part), and an activation mechanism 49. The upper arm has two hooks 48a that hold the bag 30 by the handles and it rotates 180 degrees to release the handles by using an activation mechanism 49 that allows the immediate unloading of the bag by gravity. The lower arm is fixed to the attachment. 12 degrees slewing action on both sides, facilitating the clamping and hooking.
[0047] FIG. 9 shows an embodiment according to the present invention. The big bag 40 includes a side discharge 42. The big bag requires a structure similar to that of a container (with or without wall) and a side discharge hopper 42 with an inflatable wedge 44. The wedge is fill with air or water. The shape of the bag copies the shape of the structure and the inflatable wedge. The discharge of the bag may be in the form of a hopper or not.
[0048] FIG. 10a shows an embodiment according to the present invention. The big bag 50 includes a central removable panel 52. The big bag 50 requires a structure similar to that of a container (without a wall) and a lower central discharge hopper. The shape of the bag copies the shape of the structure and the hopper. The wall-less structure of the bag refers to the fact that it can be folded, or the supporting columns of the structure can be removed. it requires a structure similar to that of a container (with or without wall) and a side discharge hopper with a folding mobile tilt floor. The shape of the bag copies the shape of the structure and the folding mobile tilt floor. The discharge of the bag may be in the form of a hopper or not.
[0049] At present, the methods of unloading for the sand use maritime ISO containers modified with a lower hopper, making it difficult to transport the empty containers by the volume that they occupy during the return to be filled again. Therefore, the big bag 50 was designed that can be used as a wall, in a foldable manner, using a container and/or a similar structure of smaller size for the transport of the sand.
[0050] In order to manipulate the big bag 50, it is necessary to design devices that adequately allow performing or complementing the functions for which the bags were created. For this we have designed equipment that achieve an immediate unloading of the bags, in which the bags can be reused or destroyed. These devices were created to be used in conjunction with the new designs of the bags, in forklifts, telehandlers, cranes, or similar lifting equipment.
[0051] FIG. 10b shows the mechanism that is use for the big bag 50. FIG. 10c shows the big bag 50 in a working position.
