CONTAINER FOR HANDLING AND TRANSPORTING CYLINDERS
The invention relates to a container for handling and transporting cylinders, for example glass cylinders, comprising a bottom wall for supporting the cylinders in z-direction having a support bottom for supporting the cylinders and an opposite outer bottom and side walls for supporting the cylinders in x-direction as well as side walls for supporting the cylinders in y-direction, the side walls having a support side for supporting the cylinders and an opposite outer side.
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The present application is a U.S. National Phase Application pursuant to 35 U.S.C. §371 of International Application No. PCT/EP2011/056995 filed May 3, 2011, which claims priority to European Patent Application No. 10161819.7 filed on May 4, 2010. The entire disclosure contents of these applications are herewith incorporated by reference into the present application.
FIELD OF INVENTIONThe invention is related to containers for handling and transporting items, in particular containers or vessels for medicaments comprising a vitreous body of substantially tubular shape. With known containers for handling and transporting multiple vessels or cartridges, so-called mass trays, the cartridges are packed head-up. The packing of the cylinder-like cartridges in the form of arrays is not optimal. Tight packing to maximise the number of items to be handled and transported with the container is problematic since the body of the items may become subject to fracture or breakage. However the more items can be packed within one container, the more cost efficient the items can be handled, in particular transported.
BACKGROUNDTransportation costs are, beside the weight of goods, calculated on the volume of the goods. Therefore, the tightest array of items results in a reduction of transport costs per transport item. However, one problem of known containers is the fact that vibration or mechanical impact on the container during transportation can influence the quality of the item, in particular could lead to breakage or damage like hairline cracks. This is especially known for glass cylinders. The tightest array, in particular in perfect, e.g. hexagonal order, is usually in form of combs as to the relation between the different cylinders.
It is therefore on object of the present invention to provide an improved container having that serves to protect the items transported therein. Moreover, the invention aims to reduce the number of fractures and/or broken items during handling and transportation thereof while maintaining a high package density.
SUMMARYThe invention therefore provides a container according to independent claim 1 as well as geometrical means to be placed therein according to claim 21.
The container according to the present invention is designed for handling and transporting items, that are typically provided in form of tubular shaped cartridges filled or to be filled with a liquid medicament. The container comprises a bottom structure, like a bottom wall for supporting the cylinders in z-direction. The bottom structure has an inner support bottom for supporting the cylinders and an opposite outer bottom. Furthermore, the container comprises at least a first and a second side wall section supporting the items in x-direction as in y-direction. Therefore, the side wall sections comprise an inner support side facing towards the items and further comprising an opposite and outer side. The container further comprises geometrical means for disturbing a perfect order of items when arranged, i.e. densely packed in the container.
According to the present invention, a coordinate system is used to define the different orientations of the side wall sections. Hence, the first side wall section substantially extends in y-direction and the second side wall section substantially extends in x-direction. Typically, first and second side wall section are arranged substantially orthogonal with respect to each other, wherein the first and the second side wall extends substantially perpendicular out of the bottom wall of the container. Also the bottom structure or bottom wall extends perpendicular to the elongation of both, first and second side wall sections. Such coordinate system is shown in the figures and has a x-direction and a y-direction defined by the bottom wall of the container.
However, the side wall sections and the bottom structure may also extend at a different angel with respect to each other. Hence, the container may then feature a rhombus-shaped structure.
In the present invention is distinguished between singular items, like glass cylinders on the one hand and an array of such items on the other hand. An array of items is in general an accumulation of multiple items in any kind of order. For instance an array of tubular shaped items can be positioned with a planar axial end face on the bottom structure while the side walls of adjacently and regularly arranged tubular items mutually abut and are arranged in a comb- or hexagonal or hexagonal closest, hence in a perfect packing.
For supporting the items, the container has side walls and a bottom wall. Such walls can all be perpendicular to each other, but do not need to be. Also variations of side walls resulting for example in a triangular shape of the container are possible within the scope of the present invention. During a filling or packing process, the items are placed in the container. Such placing can take place by handling single items or small packages of items like 10 pieces at one time. For better placing of the items, the container, in particular its bottom wall can be slightly pivoted respect to the horizontal direction. By way of such a pivoted orientation, the cylinders positioned in the container driven by the gravitation automatically arrange along the tilted bottom and/or side walls to the deepest possible point within the container. That way, the packing automatically results in the tightest packing of tubular items in a staggered array. Such tightest packing is referred herein also as “perfect order” of items. Such perfect order allows having the maximum number of items packed within the container.
Even though such tightest packing seems beneficial in terms of transport and storage space and transport costs, such an arrangement is fairly prone to unavoidable mechanical impact. Since the breakable or vitreous items are arranged in a mutually abutting configuration, any mechanical shock or impact will propagate through the array of items, and may eventually cause fracture or breakage of such items.
Therefore, an inventive container comprises geometrical means, which prevent the glass cylinders to order themselves into perfect order. The geometrical means are adapted to impede a regular and perfect arrangement of items in the container. Hence, the geometrical means serve to induce geometrical disorder to the array of items. Generally speaking, by way of the geometrical means, the symmetry of the transport volume with respect to the size and geometry of the items to be stored therein can be broken. Also, a manipulated order of the cylinders by an operator into perfect order is avoided. Moreover, even during the handling and transportation process, the geometrical means prevent the items to return by shaking and vibrating of the container to a perfect order.
Therefore, by using an inventive container with geometrical means for disturbing the perfect order of the items, the inter-item transmittance and mechanical propagation of vibrations, of mechanical impact or impulses from outside the container can be reduced. It has to be noted that the geometrical means do not need to disturb the perfect order all over the cylinder array, but at least in the area of the container which are most likely the place for the incoming or accumulation of vibration or impulses.
According to an embodiment, the container may comprise the geometrical means on the inside facing support side of at least one side wall section. Furthermore, the geometrical means may be located on or in the support structure, hence on or in the bottom wall. Such different possible locations can be used to adapt the container to different kinds, in particular geometric forms or sizes of the cylinders to be handled and transported. For example, it could be useful to have special shapes of geometrical means at the bottom structure for disturbing the perfect order within the array of items. It has to be noted that, depending on the respective specific needs, the geometrical means can have different elements, which can comprise different locations at the support sides as well as on the support structure.
In some specific situations it could be of benefit, if the geometrical means is located only at the support bottom. It is of advantage that in such cases, when the geometrical means is not located at the support sides, that the geometrical means do not reduce the number of cylinders that can be stored in the container. Such embodiment makes benefit of the present invention, but does not affect the usability of the container as to transportation costs.
One further option of the location of the geometrical means is that the geometrical means extend from the support bottom of the bottom wall in z-direction. That way, the geometrical means can be located freely spaced apart from the side walls, namely in a middle or other arbitrary areas of the container. In particular for complex kinds of items or also for the handling and transportation of different kinds of items, such like glass cylinders of different size or shape within one and the same container. The location of the geometrical means may offer highest flexibility. That way, the perfect order of the items array can also be disturbed in areas of the container, which are spaced apart from the side walls.
In a further preferred embodiment, the geometrical means comprise projections or projected structures rising from the bottom structure. The projections themselves may comprise a flat-shaped socket but could be also designed as a pin or stud. Preferably, the projections are arranged in a chessboard-like pattern. Then, the projections are regularly and alternately arranged along the first and the second side wall sections, hence in x- and y-direction.
Preferably, the surface of the projections parallel to the bottom structure is larger than the diameter of the items to be arranged thereon. This way, items like glass cylinders can be arranged onto such projections or interstitially therebetween. Since the lateral size in x- and y-direction of the projections is larger than the diameter or circumference of the items to be placed thereon, a geometric disorder can be induced into the array of items.
Preferably, the projections comprise a rectangular, oval or even circular shaped elevated socket portion having a planar support surface on its top end. Moreover, the elevation or height of the projections can be kept rather small. It may range between 1 mm and 5 mm, preferably between 2 mm and 4 mm. The elevation of the flattened and planar supports may be 10- to 50-times smaller than their lateral extent in either x- or y-direction.
The projections may further be regularly or irregularly arranged across the entire inside facing surface of the bottom structure of the container. Even with regularly, chessboard-like arranged projections, the symmetry of a densely packed array of items to be arranged thereon can be broken.
It is further of particular benefit, when the projections comprise at least one bevelled side surface, which may extend at an angle between 30° and 90°, preferably between 45° and 60° with respect to the plane of the bottom structure, defined by the x- and y-direction. Moreover, the planar support may extend parallel to the bottom structure but may also be slanted by e.g. 1° to 5° with respect to the plane of the bottom structure. By having bevelled side surfaces, a tilting moment or torque can be induced to items that are positioned thereon. Additionally, when the items are to be automatically arranged into the container, the bevelled surface may suffice to separate adjacently arranged items along x- and/or y-direction.
Introduction of geometrical irregularities into the array of items may not be due to the angle, the bevelled side surfaces extend with respect to the bottom structure but may also depend from the lateral extent of such side surfaces.
According to another embodiment, the distance between neighbouring projections along the first and/or second side wall section is larger than the respective extent of said sections along these directions. This way, corners of rectangular shape projecting sockets are separated by a predetermined distance from each other. The distance between neighbouring projections may be defined as the distance in x- or y-direction, adjacently located edge portions of neighbouring projections are separated from each other.
It is of further benefit, when the projections are integrally formed with a surrounding mat structure which is further adapted to cover the entire inside facing surface of the bottom structure of the container. This way, even existing containers can be retrofitted with geometrical disorder means by simply placing a mat structure onto the bottom structure of the container. The mat structure may comprise a flexible material of e.g. natural or synthetic rubber. Furthermore, the mat structure may comprise thermoplastic material, such like polyethylene, polypropylene or the like.
According to the present invention it is also possible to have a container wherein the geometrical means is at least partly of rigid material. The expression “rigid material” is to be understood as a material with little elastic characteristics. Such a material could be chosen from metal or plastic material, for example thermoplastic material. The use of rigid material ensures stability of the items itself as well as the array of items with the order disturbed by the geometrical means. Moreover, the use of thermoplastics as rigid material enables easy and cost efficient production of the geometrical means. If a container is also made of thermoplastics, the container could be produced together with the geometrical means integrally by using an injection molding process.
It is also possible according to the present invention if the container has the geometrical means made at least partly of elastic material. Such elastic material could for example be foam, neoprene or rubber. The use of elastic material results in the further benefit that impulses or vibrations the container is exposed to can be dampened. Due to such dampening effect for example it would be sufficient to arrange a reduced number of geometrical means in or on the container while still attaining the same or even a better effect with regard to the statistical number of breakage or damage of the cylinders. Such elastic material could also be combined with rigid material parts. That way, for example the connecting parts of the geometrical means with the bottom wall or the side walls of the container can be made of the rigid material, while the part of the geometrical means contacting the cylinders can be made of the elastic material.
Also, the geometrical means may comprise a specific coverage of rigid base material with an elastic cover. However, it has to be noted that the inventive effect of reducing the statistical number of cylinder defects like fracture or breakage is predominately attainable by the position and shape of the geometrical disturbing means, that serve to annihilate an otherwise establishing perfect order of the items in the container. Possible damping effects of elastic material or parts made of elastic material are only additional with less effect than the disturbance effect of the geometrical means.
At an inventive container, the geometrical means can be constructed and located within the container to disturb the perfect order of the items array at least in the corner areas defined by the connection of the side walls. Surprisingly it has been found that after transportion of the item in the container, most defects of items, like vitreous cylinders or cartridges, occur in or near the corners and/or the wall areas of the container. Therefore, for effective reduction of the statistical number of defects of the cylinders, the geometrical means are located in particular in such vulnerable areas.
The container according to another embodiment may also comprise geometrical means that comprise connecting elements for connecting such geometrical means to parts of the container. Preferably, the geometrical means can be positively locked with corresponding parts of the container, e.g. its side wall or bottom section. In particular, geometrical order-disturbing means can be clicked to the side walls and/or the bottom wall. Respective connecting elements can for example be constructed as pins or clips which can be used to click the geometrical means into corresponding cavities of the respective side wall or bottom wall. By using such connecting elements, the geometrical means can be removable from the container. Hence, the interconnection is of releasable type.
That way, the entirety of geometrical means can be in principle removed from the container, for example when empty containers are to be arranged in a nested and staggered way.
Moreover, by using such removable geometrical means, different configurations of such geometrical means can be realized within the same container and with the same geometrical means. Therefore, also different sizes of items as to their diameter can be transported by benefiting from the inventive idea and by using one and the same inventive container with different configurations.
One possibility for the construction according to the present invention is a container wherein the geometrical means comprise disturbing wings. According to such an embodiment, multiple wings are located all over the support bottom of the container, extending in z-direction. The wings are constructed with an elliptical profile to fit smooth within the array of items. Due to such disturbing wings, the items have enough space to transform shock impacts into kinetic energy.
A further possibility for the construction according to the present invention is a container wherein the geometrical means comprise protective lanes or respective grooves. Such protective lanes are located at least partly on the support bottom, facing in z-direction. The protective lanes may be of different width and/or of different depth, for example the width can be as wide as the extent or diemater of the item to be placed thereon. Moreover, the lanes adjacent to the container side wall can be wider than the outer dimensions of diameter of the item. It may be due to such protecting lanes, that the items have enough space to transform shock impacts into kinetic energy. Furthermore that way, the items themselves, e.g. in form of glas cylinders, are positioned at different heights and different spacing and for example do not touch each other at a protruding melting ring at either edge of the cylinder.
It can also happen that some cylinders are angled against the z-direction due to the fact that they stand only partly on one of the upper portions of the protective lanes. By such different manipulations of the perfect order in the cylinder array, the statistical number of defects of the cylinder can be reduced.
It is also possible at an inventive container that the geometrical means comprise a wave braking frame. Such a wave braking frame is located at the support sides of at least one, preferably at three or four of the support sides. For example, the breaking frame has a profile with different widths, which varies frequently. By using such a geometrical means, the areas at the corners and the side walls of the container are in particular areas of a cylinder array with disturbed perfect order. That way it is possible, for example, to disturb up to seven rows of the cylinder array, seen in x- and y-direction from the support sides.
A further alternative for the geometrical means in an inventive container can be that the geometrical means comprise long form disturbing wings. The use of such wings is similar to the use of the disturbing wings described above. However, the effect on the cylinder array of long disturbing wings can be increased as to the effective area of the geometrical means with less additional parts. Such a long disturbing wing held to divide the cylinder array in different sections of different and above all separated orders. Due to such long form disturbing wings, mechanical impact and shock or linear momentum can only be transferred within one such section.
One further embodiment with geometrical means located on the support bottom of the container with minimal extension in z-direction is the use of curved protective lanes. Such curved protective lanes have a similar functionality compared to the ordinary protective lanes. However, due to the curved structure, less protective lanes are necessary to disturb the perfect order of the cylinder array. Such curved protective lanes also do not reduce the number of cylinders per container. Also a reduction down to two lanes can be carried out due to the fact that the lanes comprise their curves in particular at the ends near the corner between the side walls. That way, for example two curved protective lanes mainly in x-direction are generally sufficient for disturbing the perfect order of the cylinder array.
Additional to the geometrical means, the container may further comprise shock absorbing means, e.g. in form of foam protection elements. Respective elements being plastically and/or elastically deformable are preferably arranged at the inside facing side wall sections, in order to absorb externally applied mechanical impact. Such protection elements may provide a damping effect into the array of cylinders.
In one embodiment, items or cylinders that are handled or transported in the container of the present invention comprise a material susceptible to fracture or breakage under mechanical stress. For example the cylinders comprise or even consist of glass. The cylinders preferably have a substantially cylindrical cross-section. For example, the items may be designed as a tube, a vial, an ampoule, a carpoule, or a cartridge. Preferably, all cylinders in a container of the same cross-section and consist of the same material. In one embodiment, the cylinders are glass cylinders, such as glass cartridges or glass carpoules.
Also part of the present invention is a geometrical means for the use in an inventive container with one or any combination of the above described features.
The present invention will be described in more detail with respect to the figures. Such figures show:
The order of glass cylinders 100 as shown in
In
A further embodiment of the present invention is shown in
A further embodiment of the present invention is shown in
Also the use of at least one or several protection elements 64 is possible within an inventive container 10. The protections elements 64 may comprise a plastic and/or elastic foam protection 64 and may be arranged at the side wall sections 20, 30 and/or at the bottom structure 40. Especially when the protection elements comprise inward facing or upwardly directed protrusions, they may also induce the desired effect of disturbing a regular arrangement of cartridges. Besides a possible disturbing effect, the plastic foam protection 64 further induces a damping effect into the system of the container 10. In particular in situations where vibrations of specific frequencies are introduced into the container and therefore also into the array of glass cylinders 100, the damping effect of the plastic foam protection can damp the amplitude of the vibration. Besides the damping, due to the disturbing of the perfect order within the array of glass cylinders 100, the transmittance and propagation of vibrations and other mechanical excitations can be reduced or even cut off.
As illustrated in the cross-sectional illustration according to
In an alternative embodiment as illustrated in
Further illustrated in
In the cross-sections according to
In
According to the present invention, all different kinds of geometrical means 50 described above, are to be understood as examples. Moreover, such geometrical means 50 can comprise different elements for disturbing the perfect order of the glass cylinder array.
Claims
1-21. (canceled)
22. Container for handling and transporting items comprising:
- a bottom structure for supporting the items in z-direction at least a first side wall section for supporting the items in x-direction; and
- at least a second side wall section for supporting the items in y-direction; and
- geometrical means adapted to disturb a perfect order of the items when arranged in the container.
23. Container according to claim 22, characterised in that the geometrical means is located on an inside facing support side of the first and/or second side wall section and/or is located on the bottom structure.
24. Container according to claim 22, characterised in that the geometrical means is extending from the support bottom of the bottom wall in z-direction.
25. Container according to claim 22, characterized in that the geometrical means comprise at least one projection rising from the bottom structure.
26. Container according to claim 25, wherein the projections comprise a rectangular or oval shaped elevated socket portion comprising a planar support surface.
27. Container according to claim 25, wherein the projections are regularly arranged across the inside facing surface of the bottom structure.
28. Container according to claim 25, wherein the projections comprises at least one bevelled side surface extending at an angle between 30° and 90°, preferably between 45° and 60° with respect to the plane of the bottom structure.
29. Container according to claim 25, wherein a distance between neighbouring projections along the first and/or second side wall sections (x, y) is larger than the lateral extension of the projections in these directions.
30. Container according to claim 25, wherein the projections are integrally formed with a mat structure adapted to cover the entire inside facing surface of the bottom structure.
31. Container according to claim 22, characterised in that the geometrical means is at least partly of rigid material.
32. Container according to claim 22, characterised in that the geometrical means is at least partly of elastic material.
33. Container according to claim 22, characterised in that the geometrical means are constructed and located within the container to disturb the perfect order of the cylinder array at least in corner areas defined by the connection of first and second side walls sections.
34. Container according to claim 22, characterised in that the geometrical means comprise connecting elements for interconnecting geometrical means to parts of the container.
35. Container according to claim 22, characterised in that the geometrical means comprise disturbing wings.
36. Container according to claim 22, characterised in that the geometrical means comprise protective lanes.
37. Container according to claim 22, characterised in that the geometrical means comprise a wave braking frame.
38. Container according to claim 22, characterised in that the geometrical means comprise long form disturbing wings.
39. Container according to claim 22, characterised in that the geometrical means comprise curved protective lanes.
40. Container according to claim 22, further comprising shock absorbing means arranged at the first and/or second side wall sections and/or at least partially across the bottom, structure.
41. Container according to claim 22, being further adapted to receive and/or to carry multiple cartridges ampoules or vials of tubular shape filled or to be filled with a liquid medicament.
42. Geometrical means for the use in a container with the features of claim 22.
Type: Application
Filed: May 3, 2011
Publication Date: Aug 15, 2013
Applicant: SANOFI-AVENTIS DEUTSCHLAND GMBH (Frankfurt am Main)
Inventors: Paul-Gerhard Kibat (Frankfurt), Matthias Scharf (Frankfurt), Hanno Juhnke (Frankfurt), Jasmin Groeschke (Frankfurt), Rainer Bernhardt (Frankfurt), Jan-Peter Spengler (Frankfurt), Michael Schrack (Pliezhausen), Olaf Zeckai (Weinheim)
Application Number: 13/695,181
International Classification: B65D 25/10 (20060101); B65D 81/107 (20060101); B65D 85/20 (20060101); B65D 81/02 (20060101);