Container for explosive material
10024640 ยท 2018-07-17
Assignee
Inventors
Cpc classification
B65D1/42
PERFORMING OPERATIONS; TRANSPORTING
F42B39/18
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
B65D81/054
PERFORMING OPERATIONS; TRANSPORTING
B65D85/30
PERFORMING OPERATIONS; TRANSPORTING
F42B39/26
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
B65D2501/00
PERFORMING OPERATIONS; TRANSPORTING
B65D2543/00101
PERFORMING OPERATIONS; TRANSPORTING
F42B39/24
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
A45C13/36
HUMAN NECESSITIES
International classification
F42B39/24
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
B65D85/30
PERFORMING OPERATIONS; TRANSPORTING
B65D81/05
PERFORMING OPERATIONS; TRANSPORTING
B65D1/42
PERFORMING OPERATIONS; TRANSPORTING
F42B39/26
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F42B39/18
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F42B39/30
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
Abstract
A thermoplastic container for explosive material comprising: a primary part defining a rigid compartment for holding explosive material, where the primary part comprises: a side wall having an inner periphery defining the side boundaries of the compartment and an outer periphery, a base arranged at a lower end of the side wall defining the lower boundary of the compartment, where an upper end of the side wall is arranged to provide access to the compartment allowing explosive material to be loaded into the compartment; a secondary part comprising: at least one reinforcement element defining an outer periphery of the container, wherein the reinforcement element is coupled to the primary part and is adapted to provide horizontal and/or vertical load support to the primary part and where the reinforcement element comprises at least one collapsible impact zone adapted to absorb an external impact to the secondary part and to transmit the excess forces of the impact into from the reinforcement element to the primary part.
Claims
1. An ammunition container of thermoplastic material comprising: a primary, integrally molded part defining a rigid compartment for holding ammunition, where the primary part comprises: four side walls defining an inner periphery of a sidewall boundary of the compartment and an outer periphery of the sidewall boundary of the compartment, wherein respective ones of the four sidewalls are connected to one another at respective ones of four corners of the primary part, a rectangular base arranged at a lower end of the four side walls defining a lower boundary of the compartment, where an upper end of the four side walls is arranged to provide access to the compartment allowing ammunition to be loaded into the compartment, a secondary part comprising: at least one hollow reinforcement element provided at or near each of the four corners of the primary part, the reinforcement elements defining a reinforcement element outer periphery of the ammunition container, wherein the reinforcement element is integrally molded with the primary part and where the reinforcement element comprises at least one collapsible impact zone adapted to absorb an external impact to the secondary part and to transmit excess forces of the impact from the reinforcement element to the primary part, wherein the outer periphery of the sidewall boundary and the reinforcement element outer periphery together form a complete lateral outer periphery of the primary element, wherein the ammunition container is provided with a substantially flat, lid having four corners corresponding to the four corners of the primary part, that is adapted to selectively prevent access to the compartment, wherein the lid is provided with integrally molded, hollow cooperative top reinforcement elements that extends the reinforcement elements of the secondary part, from a lowermost end of the lid to the uppermost end of the lid, providing at least one second collapsible impact zone and providing horizontal and/or vertical load support from the upper end of the lid and to the lower end of the lid.
2. An ammunition container according to claim 1 where the at least one reinforcement element is adapted to provide horizontal and/or vertical load support to the primary part.
3. An ammunition container according to claim 1 wherein the at least one reinforcement element extends from the lower end of the four side walls to the upper end of the four side walls.
4. An ammunition container for according to claim 1 wherein a first end of the at least one reinforcement element is attached to a first area of the primary part and a second end of the at least one reinforcement element is attached to a second area of the primary part that is distant to the first area along a length of the primary part.
5. An ammunition container according to claim 1 wherein a first area of the primary part is arranged on an end side wall of four side walls of the primary part and a second area of the primary part is arranged on a longitudinal side wall of the four side walls of the primary part.
6. An ammunition container according to claim 1 wherein the collapsible impact zone of the at least one reinforcement element is elevated away from the side wall outer periphery, so that an overlapping area of the impact zone is mechanically independent from an exposed area of the outer periphery of the sidewall boundary.
7. An ammunition container according to claim 1 wherein the at least one collapsible impact zone is arranged to overlap a transitional area of the four side walls where a longitudinal side wall of the four side walls joins an end side wall of the four side walls, where the longitudinal side wall joins the rectangular base of the primary part and/or where the rectangular base joins the end side wall.
8. An ammunition container according to claim 1 wherein the upper end of the four side walls is provided with a flange extending along the upper end of the four side walls.
9. An ammunition container according to claim 1 wherein the at least one reinforcement element extends from the upper end of the four side walls and towards the lower end of the four side walls and terminating before the at least one reinforcement element it reaches the lower end of the four side walls.
10. An ammunition container according to claim 9 where the four side walls is provided with a reinforcement beam that extends from a lower end of the at least one reinforcement element to the lower end of the four side walls.
11. An ammunition container according to claim 1 wherein the rectangular base is provided with a plurality of diagonal reinforcement beams.
12. An ammunition container according to claim 1 wherein the at least one reinforcement element is provided with a handle.
13. An ammunition container for according to claim 1 wherein the at least one reinforcement element defines a volume between the outer periphery of the side wall boundary of the compartment and an inner boundary of the at least one reinforcement element.
Description
BRIEF DESCRIPTION OF DRAWINGS
(1) The invention is explained in detail below with reference to the drawings, in which
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(11) In the following detailed description of the figures, reference numbers relating to similar parts or elements will be utilized for the same parts or elements in all the embodiments shown unless otherwise stated.
DETAILED DESCRIPTION OF DRAWINGS
(12)
(13) The casing part 2 comprises a primary part 5, which has an inner periphery 6 that defines the compartment 4 of the casing part 2, and an outer periphery that defines an outer periphery 7 of the compartment 4. In this exemplary embodiment the compartment is shown as substantially rectangular. The primary part 5 comprises a side wall that may extend to four sides of the wall in a longitudinal side wall 8 and an end side wall 9, where the longitudinal and the end side walls have opposing end walls (not shown). The side walls have a lower edge 10 defining a bottom part of the compartment 4 and an upper edge 11 defining the upper part of the compartment 4, where the height of the side wall defines the loading volume of the compartment 4. The side walls 8, 9 are provided with a flange 12 that extends along the upper edge 11 of the compartment 4, where the upper edge is designed to embed into the lid part 3, when the lid part is closed, as seen in
(14) Thus, when the lid is closed, the flange 12 is inserted into the volume of the lid part 3, so that the side wall 15 of the lid part 3 overlaps the flange 12 so that the flange 12 is hidden from view when the lid is closed.
(15) The primary part 5 of the casing part 2 of this embodiment is provided with at least four reinforcement elements 16, 17, 18, 19 that are arranged on the outer periphery 7 of the primary part 5. The reinforcement elements 16, 17,18,19 are arranged to overlap the exposed parts, e.g. the corners (20, 21, 22, 23 as shown in
(16) The lid part 3 may be provided with corresponding reinforcement elements 24, 25, 26 are adapted to protect the corners 27 of the flange, and to increase the strength of the lid part 3. The reinforcement elements are capable of absorbing any impact that may be applied to the lid part, minimizing the risk that the flange 12 is damage and/or that the structural integrity of the lid part 3 is compromised, so that the lid will remain in a closed state on the container if an impact is directed towards the lid part.
(17) The reinforcement elements 16, 17, 18, 19 may also be function as an element providing horizontal and/or vertical load bearing capabilities to the primary part 5, so that when a load is applied to the primary part, via the lid part 3 or the flange part 12, the primary part will be able to withstand the load and reducing the risk that the structural integrity side walls 8,9 of the primary part will be compromised, causing the side wall 8,9 to collapse or be damaged by the load. The reinforcement elements 16, 17, 18, 19 may be used to offload a part of the load from the side walls of the primary parts and/or by providing extra strength to the primary part, and improving the rigidity of the side wall, e.g. to prevent the side wall from bulging from its original shape when a load is applied to the primary part. As the flange 12 of the primary part is adapted to be inserted into the lid part 3, providing a seal between the lid part and the flange, any load that is applied to the lid part 3, e.g. during stacking of multiple containers 1, may be transferred into the flange part and onwards towards the side walls 8,9 of the primary part 5. In order to increase the load bearing capabilities of the container, when the lid part 3 closes the compartment 6, the lower edge 37 of the reinforcement elements 24, 25, 26 of the lid part may be adapted to abut an upper edge 38 of the reinforcement elements 16, 17, 18, 19 of the primary part 5. This means that when a load and/or an impact is applied to the lid part 3, the energy of the load or impact may be transferred from the lid part 3 to the reinforcement elements 16, 17, 18, 19 of the primary part, ensuring that the energy is transferred between the two parts 2, 3, and thereby reducing the risk that the energy will be concentrated enough in a small area causing the container 1 to be compromised.
(18) The reinforcement elements 16, 17, 18, 19 are applied to the outer periphery of the primary part 5, which means that in the areas where the reinforcement elements areas are provided, the total thickness of the wall is larger than the thickness of the side walls 8,9 having no reinforcement elements. This means that the outer surface 28 of the reinforcement elements 16, 17, 18, 19 is the outermost periphery of the primary part, ensuring when the container 1 is dropped on a flat surface, the initial point of contact with the flat surface is the reinforcement element. Thus, it is prevented that when dropped, the impact will damage the non-reinforced parts of the primary part 5, i.e. the recessed parts of the outer periphery of the casing.
(19) The lid part 3 and the casing part 2 are provided with means for locking the lid part 3 in its closed position on the casing part 2. The means may be in the form of a latching mechanism 29, which is adapted to be attached to a fastener 30 on the end side wall 9 of the primary part. The latching mechanism 29 may be in the form of a draw latch 31, having a loop 32 that is adapted to interact with a fastener 33 on the lid part 3. The draw latch 31 may be closed, so that the loop holds the lid part tightly attached to the casing part, where the hinge 13, 14 holds the opposite end of the lid part 3 in contact with the casing part 2. The draw latch 31, loop 32, and the fasteners 30, 33, may be made of a thermoplastic material. By positioning the latching mechanism 29 may be positioned in the recessed part of the casing part 3, so that the outermost part of the latching mechanism does not extend beyond the outer surface 28 of the reinforcement part, ensuring that any impact with a flat surface will have its initial contact with the reinforcement element, and thereby protecting the latching mechanism.
(20) Furthermore, the lid part 3 may be provided with a handle 34, where the handle, similar to the latching mechanism 29, is arranged in its parked position in an area 35 that is recessed in relation to the top surface 36 of the lid part 3. Thus, if the container 1 is dropped on the lid part 3, the handle will not be the initial contact of the impact, ensuring that the handle is intact when retrieving the container 1 after the impact.
(21) The positioning of the handle 34 and the latching mechanism 29 in their recessed areas is shown in
(22) When an impact hits the container 1, having the reinforcement elements 16, 17, 18, 19, 24, 25, 26 as the initial point of contact, the reinforcement elements may be adapted to collapse in a controlled manner, so that the a part of the kinetic energy of the impact is absorbed by the collapse. The remaining part of the kinetic energy may be transmitted to other parts of the primary part, ensuring that the energy is distributed to a large area and reducing the risk of damage to the primary part 5. In this example the reinforcement element 18 is attached to the longitudinal side wall 7 of the primary part 5, via a transitional area 39. Thus when an impact reaches the outer surface 28 of the reinforcement element 18, the kinetic energy is absorbed by the reinforcement element and transmitted via the transitional area 39 to the longitudinal side wall 7 of the primary part 5. As the transitional area 39 extends from the upper edge 11 of the side wall towards the lower edge 10 of the side wall, the energy may be transferred to a large area or volume of the primary part 5. Furthermore, the primary part may be provided with reinforcement beams 40, 41 that extend along the longitudinal length of the side wall 7, which are in mechanical communication with the reinforcement elements of the primary part 5. The reinforcement beams 40, 41 allow the kinetic energy to be transmitted to other parts of the primary part 5, allowing the kinetic energy to be transmitted to an even larger area of the primary part. The reinforcement beams 40, 41 may also be used to provide strength to the side wall 7 in a direction that is parallel to the reinforcement beam, and reducing the risk of the side wall 7 collapsing in the longitudinal direction.
(23) The top surface 36 of the lid may be provided with a plurality of plugs 42, that extend beyond the top surface of the lid, where the plugs may be adapted to interact with a plurality of cooperating sockets (not shown) that are positioned on the bottom surface of the casing part. Thus, when a container 1 is positioned on top of another container, the plug 42 and sockets will line up and connect, increasing the lateral stability of the stack, as the plugs 42 and sockets ensure that the two containers cannot displace sideward with regards to one another. The plugs may also be positioned in such a way, that one container may be positioned on top of two containers that are positioned approximately perpendicular to the upper container, allowing a crossed stacking of the containers and ensuring that the plugs are lined up with the sockets of the corresponding container.
(24) For a crossed stacking it may be advantageous that the proportional size of the container is approximately 2:1 where the length of the container is approximately two times the width of the container. This allows two containers to be cross stacked on top of a single container where the half of the length of the upper container overlaps the width of the lower container, or vice versa.
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(26) The lid part 3 has been introduced to close the compartment 4, where the lower edge 37 of the reinforcement elements 24, 25, 26 abuts the upper edge of the reinforcement elements 16,17,18,19, creating a mechanical connection between the reinforcement elements of the lid part 3 and the casing part 2, allowing kinetic energy to be transmitted from the lid part 3 and into the casing part 2.
(27) The handle 34 may be seen as being in it parked position within the circumference outermost surface 36 of the top part 3. When the handle 34 is grabbed, the ends 43, 44 of the handle 34 allow the handle 34 to extend upwards and extending out of the recess 35 so that the handle may be accessed, similar to the handle of a wine box. The ends are loosely attached to the lid part, and have a margin of movement, allowing the length of the handle 34 between the handle sockets 45, 46 to become longer. When the handle is released, it may return to its parked position, inside the recess 35, due to e.g. the mechanical memory of the handle. I.e. any deformation to the material during the grabbing of the handle 34 may be reversible. The handle 34 may be made out of rubber, or any thermoplastic material.
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(29) Thus, the reinforcement member may absorb part of the impact, and as the reinforcement members are attached at a first 54 and a second end 55, in this view, to the primary part 5, the kinetic energy of the impact may be transferred from the reinforcement element 16, 17, 18, 19 and to the side walls 7, 7, 9, 9 of the primary part 5, ensuring that the kinetic energy is distributed to different parts of the primary part 5.
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(32) Furthermore, it may be seen in
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(34) The container 100 differs though from the container 1 shown in
(35) The reinforcement elements 116, 117, and 118, in the areas covering the front end 126 and the back end 150 (shown in
(36) Furthermore, the volume of the reinforcement elements may further be utilized to fix a front handle 131 to the casing part 2, where the front handle 131 extends from within the volume of one of the reinforcement element 116 and across the first end 129 horizontally and into the volume of the opposite reinforcement element 117. The reinforcement element may be provided with an opening 132 that allows the front handle 131 to exit from the volume, where the opening 132 may be dimensioned to be smaller than an end part of the front handle 131, so that the end part is prevented from exiting the opening in a horizontal direction when a force is applied to the front handle 131.
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(39) The first latching mechanism 127 may be inserted into the reinforcement elements 116 and 117 on the front end of the casing 2, as well as the front handle 131. Thus, the first latching mechanism 127 and the front handle 131 may be introduced into the volume of the reinforcement elements from the upper periphery of the reinforcement elements 116, 117, where the clasp 128 is rotationally coupled to the first latching mechanism 127.
(40) The top part 3, may be provided with an upper handle 141 that is adapted to extend from the lower side 142 of the top part and into the handle compartment 143 on the upper side of the top part 3. The upper handle 141 may be provided with end members 144, 145, which may be positioned in corresponding receiving elements in the top part 3, ensuring that end members 144, 145 are securely attached to the top part 3, allowing the container 100 to be carried during use. The lower side 142 of the top part 3 may be provided with a reinforcement plate 146, that provides an increased rigidity to the top part 3 and is capable of being releasably mounted on the lower side, and thereby providing a fastening mechanism for the handle, so that the ends 144, 145 of the handle are pressed between the upper surface of the reinforcement plate 146 and the lower side 142 of the top part. The upper handle 141 may be adapted to be flexible, so that when the handle is being used, it extends from within the compartment 143, while it retracts into the compartment 143 when not in use. The person skilled in the art will realize on basis of the above, that a different type of handle may be provided in the top part 3.
(41) The top part 3, may be provided with second hinge members 138, that may be releasable attached to the back end of the top part 3, where the second hinge members are adapted to be coupled to the first hinge members of the casing 2.
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(44) The person skilled in the art will realize that elements shown in the embodiment in