PT80185B

PT80185B - Improved polygonal stackable drums

Info

Publication number: PT80185B
Application number: PT80185A
Authority: PT
Original assignee: Valenciana Cemento
Priority date: 1984-03-29
Filing date: 1985-03-28
Publication date: 1986-10-28
Also published as: IE850807L; GB2157255B; ZA852275B; KR850006724A; DE3511641A1; GB2157255A; DK139885A; AR242010A1; ES285703Y; IE56373B1; PT80185A; IL74749A0; EP0156653A3; FI851257L; AU4045985A; CA1230066A; NZ211605A; DK139885D0; EP0156653A2; ES285703U

Abstract

The specification discloses a number of improvements to polygonal, preferably square, stackable drums. Specifically, the specification discloses, a polygonal, stackable drum (1) comprising; a) a polygonal top (2) having an upraised perimetral rim, (3) formed with a channel (30) immediately inward from the rim (3), with or without a removable lid, b) a polygonal base portion (31) at the bottom of the drum (1) with or without drain holes, having a plurality of feet (9) to be received within the channel (30) of an identical drum when a plurality of drums are stacked vertically on top of each other, wherein; i) each foot (9) is provided with an outwardly projecting step (10) to rest upon the perimetral rim of said identical drum and to transmit the weight of the first drum to the perimetral rim of said identical drum, and, ii) at least one foot (9) may be provided with a shoe, the or each shoe being fixedly attached to the foot, on or after forming of the foot, hook or sling receiving means may be provided on the foot or the shoe, and, c) a side wall surface (6) with or without substantially vertical strengthening ribs, the perimetral rim (3) extending upwardly from the side wall surface; wherein the side wall surface, the top and the base portion are disposed such that the weight of another such drum stacked above the first drum is transmitted through the perimetral rim of the first drum directly into and through the side wall surface and through the base portion to the perimetral rim of the said identical drum.

Description

Description of the object of the invention

COMPANIA VALENCIANA DE CEMENTOS PORTLAND, SA, Spanish, industrial, with headquarters in Colon, 68, 46004 VALENCIA, Spain, intends to obtain in Portugal for: "POLYCARBONIZED POLYMER DRUMS PERFORATED"

The present invention relates to improved stackable polygonal drums.

0 Spanish Utility Model No. 241877 creates a square stackable drum whose base has holes in the guards to allow for the passage of the forklift teeth with bevelled ends and with a sloping lintel to displace the center of gravity in the direction of the geometric center of the load assembly, which allowed the use of the standard load platforms or four-piece platforms, and helped the forklift's teeth to enter and exit the holes, preventing the possibility of being unexpectedly trapped or be dragged.

Drums, as described and contemporaneous with the prior art mentioned above, had a top lid in which the peripheral rim or rim remained under the support element of a second drum placed on a pri56.258

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so that the weight load was partly applied directly to the lid and created the risk of denting the lid. On the other hand, the actual shape of the lid did in fact in some cases make stacking the drums one on top of the other.

U.S. Patent Application Serial No. 134874, filed March 28, 1980 and its partial continuation deposited on July 12, 1982, disclose a drum in which the peripheral rim is raised and there is a drainage channel parallel to the perimeter and immediately inwardly to the raised collar. On the other hand, the support points of the lower base of each drum had a shoulder placed so that the weight of each drum exerted directly along the vertical faces of the stacked drum below it.

It has now been found that improvements can be made in drums with which the life time can be extended and increase the resistance of the drum to the damages suffered in use. On the other hand, further refinements have been made that extend the possibilities of using the tamater.

According to a first aspect of the present invention there is provided a stackable polygonal drum comprising:

a polygonal top having a raised peripheral rim formed with a channel immediately inside the rim,

b) a polygonal base portion on the bottom of the drum with a plurality of feet entering the channel of an equal drum when several drums are stacked vertically one on top of the other, wherein:

i) each foot has a protruding shoulder for seating on the peripheral rim of said equal drum and for transmitting the weight of the first drum to the peripheral rim of said equal drum,

ii) a foot at least has a shoe, the shoe or each shoe being firmly attached to the foot during

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HK ⁷

or after the formation of the foot, and,

c) a side wall surface, extend the

the peripheral ring is raised upwardly from the side netting surface;

wherein the side wall surface, the top and the base portion are positioned so that the weight of another drum stacked on the first drum is transmitted through the peripheral rim of the first drum directly into and along the surface of the side wall and through the base portion for the peripheral rim of said equal drum.

The shoe or each shoe may be firmly attached to the foot during or after formation thereof, for example by means of spot welding, brazing (if the drum is made of metal), ultrasonic welding the drum is made of fusible plastic material) or by means of a screwed interconnection.

It is desirable that a portion of the at least one side wall surface be formed with a plurality of reinforcements to improve its mechanical strength.

The barrel is preferably a substantial prism. square.

With the use of a square drum, it is possible to obtain a drum with particular possibility of use and ease of handling, but it should be understood that a drum according to the present invention in any of its aspects may be, for example, hexagonal or triangular in horizontal section.

In a first series of embodiments, the foot itself which is provided with a shoe is shorter than another foot which is not provided with a shoe, so that the second foot is as long as the combination of the first foot with the foot so that the drum remains level on a flat surface.

In a second series of embodiments,

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of the foot has a shoe.

In either of these two series of embodiments, the protruding lug of each foot may be provided in the respective foot or in the respective shoe. When the shoe is provided with the protruding shoulder, the shoulder can be compressed or laminated to the shoe. If the pawl is provided with a protruding raised shoulder, it is possible that a member of a carrying handle or a length or a conveyor cable may be passed through the central void of the roller, thus allowing easier handling of the drum.

In addition, the shoe may provide a connection to a suspension hook or the like. For example, in one embodiment of the present invention, the foot sole equipped with a shoe also has an inward embossing and the respective shoe is:

or equipped with a corresponding aperture, by which said suspension hook or the like can enter the stamping into the foot and by which it allows the drum to be lifted,

or equipped with a corresponding inward stamping which accompanies virtually the periphery of the embossment into the shoe, whereby a suspension hook or the like can enter the embossing into the shoe and thereby allow the drum to be lifted,

in either of the two cases summarized above, the opening suitable for entry into the suspension hook or the like may be threaded or provided with other means for locking a displacement means, for example a torsion latch receiving plate.

It follows from the foregoing that the shoe may have various profiles or curvatures in all planes with respect to the foot and be connected so as to form an energy absorbing element, both to give greater mechanical protection to the drum in handling and to cancel the effects of environmental shock or vibration during storage and transport it

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According to a second aspect of the present invention there is provided a stackable polygonal drum comprising:

a polygonal top having a raised peripheral rim formed with a channel immediately inwardly from the rim,

b) a polygonal base portion on the bottom of the drum with a plurality of feet to enter the channel of an equal drum when several drums are stacked on top of each other, wherein each foot has a protruding shoulder to rest on the peripheral rim of the drum. said drum and to transmit the weight of the first drum to the peripheral rim of said equal drum.

c) a side wall surface, in which: i) the peripheral ring is an extension to

above the side wall surface,

ii) the side wall surface has a plurality of grooves compressed to increase its mechanical strength,

iii) the side wall surface has a carrying handle, at least in the form of a stamping in the side wall,

wherein the side wall surface, top and base portion are positioned so that the weight of another such drum stacked on top of the first drum is transmitted through the peripheral rim of the first drum directly inwardly and along the surface of the first drum. side wall and through the base portion to the peripheral rim of said equal drum.

Preferably, the at least one carrying handle formed as a stamp on at least one side pair, is formed at or near the top edge of the side wall. It is considered, however, that said carrying handle may be placed differently on the sidewall surface at any convenient location56.258

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you.

According to a third aspect of the present invention there is provided a stackable polygonal drum comprising j

a polygonal top having a raised peripheral rim formed with a channel immediately inside the rim, a virtually central aperture having a laminated rim, and a cap fitted snugly with a hanging flange to close said aperture.

b) a polygonal base portion at the bottom of the drum with a plurality of feet entering the channel of a drum the same as when several drums are stacked vertically one on top of the other, wherein each foot has a protruding shoulder to rest on the rim peripheral portion of said equal drum and to transmit the weight of the first drum to the peripheral rim of said equal drum.

c) a side wall surface, wherein the peripheral rim is formed as an upward extension of the side wall surface,

wherein the side wall surface, the top and the base portion are positioned so that the weight of another of these drums stacked on top of the first drum is transmitted through the peripheral rim of the first drum directly into and along the surface of the side wall and through the base portion for the peripheral rim of said equal drum,

It is desirable that the laminated edge of the virtually central aperture is attached to the opening of a bag for lining the drum, whereby interaction of the contents of the drum with the wall of the drum is avoided.

According to a fourth aspect of the present invention there is provided a stackable polygonal drum comprising a) a polygonal top having a raised peripheral rim formed with a channel immediately inside the rim and with one or more apertures made in the peripheral rim ,

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r

wherein each aperture has an inner liner sleeve which extends through the aperture and flange to retain the sleeve within said aperture,

b) a polygonal base portion on the bottom of the drum with a plurality of feet entering the channel of a drum the same as when several drums are stacked vertically on top of each other, wherein each foot has a protruding shoulder for seating in the peripheral ring of said equal drum and to transmit the weight of the first drum to the peripheral rim of said equal drum.

wherein the side wall surface, the top and the base portion are positioned so that the weight of another such drum stacked upon the first drum is transmitted through the peripheral rim of the first drum directly into and along the surface of the side wall and through the base portion to the peripheral rim of said equal drum,

The existence of a series of manhole openings in the manner described above allows one to attach to each other a plurality of laterally placed drums, or to fasten a drum to a support structure or element by means of the use of a screw fastener, run or analog. In addition, the aperture may provide the drainage function to drain water from the channel without weakening the structure of the drum.

Preferably, the apertures are adapted to receive a carrying handle to facilitate transportation of the drum.

According to a fifth aspect of the present invention there is provided a stackable polygonal drum comprising:

a) a polygonal top having a raised peripheral rim, formed with an immediately inner channel from

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of the rim,

b) a polygonal base portion at the bottom of the drum with a plurality of feet entering the channel of a drum the same as when several drums are stacked vertically on top of one another, wherein:

i) each foot has a protruding shoulder for seating them in the peripheral rim of said equal drum and for transmitting the weight of the first drum to the peripheral rim of said equal drum,

ii) at least one foot has a flow plug for filling and tumbling the drum and is reinforced by the addition of a shoe to the same foot,

wherein the side wall surface, the top and the base portion are positioned so that the weight of another of these drums stacked on top of the first drum is transmitted through the peripheral rim of the first drum directly into and along the surface of the side wall and through the base portion to the peripheral rim of said equal drum.

The drain plug may be located on the sole of the respective foot or on the side of the respective foot. The drain plug may also be used in conjunction with any one or more of the additional features of the invention described herein.

According to a sixth aspect of the present invention there is provided a stackable polygonal drum comprising:

b) a polygonal base portion on the bottom of the drum, with a plurality of feet entering the channel of a

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same drum when several drums are stacked vertically on top of each other, wherein each leg has a protruding shoulder for seating on the peripheral rim of said equal drum and for transmitting the weight of the first drum to the peripheral rim of said equal drum.

i) the peripheral rim is formed as an upward extension of the side wall surface,

ii) a portion of at least the side web surface has some webs compressed to increase its mechanical strength, whereby the compressed webs of contiguous drums placed laterally to each other interlock mutually, thereby increasing the mechanical cohesion of a stack of contiguous drums, and,

wherein the side wall surface, the top and the base portion are positioned so that the weight of another of these drums stacked upon the first drum is transmitted through the peripheral rim of the first drum directly in and through the wall surface and through the base portion to the peripheral rim of said drum.

According to a seventh aspect of the present invention there is provided a stackable polygonal drum comprising:

b) a polygonal base portion on the bottom of the drum with a plurality of feet entering the channel of a drum the same when several drums are stacked vertically upon each other, wherein each foot has a protruding shoulder for seating on the peripheral rim of said equal drum and to transmit the weight of the first drum to the peripheral rim of said equal drum.

c) a side wall surface, wherein: i) the peripheral ring is formed as a pro56.258

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upwardly from the side wall surface, and,

(ii) a virtually vertical

is provided on the side wall surface to act as a buttress and thereby increase its mechanical strength,

wherein the side wall surface and the top and base portion are positioned so that the weight of another such drum stacked upon the first drum is transmitted through the peripheral rim of the first drum directly into and along of the side wall surface and through the base portion to the peripheral rim of said equal drum.

Preferably, the essentially vertical ribs acting as buttresses are formed in pairs placed adjacent to some or all of the vertical edges of the barrel, wherein a rib of each pair is disposed on either side of each vertical edge.

According to an eighth aspect of the present invention there is provided a stackable polygonal drum comprising:

b) a polygonal base portion on the bottom of the drum with a plurality of feet entering the channel of a drum the same when several drums are stacked vertically upon each other, wherein each foot has a protruding shoulder for seating on the peripheral rim of said drum and to transmit the weight of the first drum to the perl ring. and each foot is formed together with the respective protruding shoulder in a single pressing operation,

10

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wherein the side wall surface, the top and the base portion are positioned so that the weight of another such drum stacked upon the first drum is transmitted through the peripheral rim of the first drum directly into and along the surface of the side wall and through the base portion for the peripheral rim of said equal drum.

According to a ninth aspect of the present invention there is provided a stackable polygonal drum which comprises

b) a polygonal base portion at the bottom of the drum forming the drum floor with a plurality of feet entering the channel of a drum equal to several stacks being stacked vertically on top of each other, wherein each foot has a shoulder protruding to seat the peripheral rim of said equal drum and to transmit the weight of the first drum to the peripheral rim of said equal drum, and each foot has a surface facing inwardly between the sole of the foot and the floor of the base portion.

wherein the side wall surface, the top and the base portion are positioned so that the weight of another such drum stacked upon the first drum is transmitted through the peripheral rim of the first drum directly into and along the surface of the side wall and through the base portion of the peripheral ring of the same drum.

In any of the aspects of the present invention described above, the drum may be fabricated from metal or from plastic material.

In addition, in any aspect of the

11

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In the above described invention, means may be formed for connecting means of transport either at the top or at the base portion of the drum.

The present invention will be more fully described by way of example with reference to the accompanying figures in which:

Figure 1 shows a section of a drum according to the present invention made by a diagonal,

Figure 2 shows an enlarged view of the junction between the drum top and the side wall surface,

Figure 3 shows an enlarged view of the junction between the base portion of the drum and the side wall surface,

Figure 4 shows a foot view of a tamed in accordance with the present invention seen from inside the drum,

Figure 5 shows a section through a foot of a drum according to the present invention,

Figure 6 shows a view analogous to Figure 4, but with a flow plug,

Figure 7 shows a section through a foot of a tamer according to the present invention and details of a shoe having a drainage hole in its sole,

Figure 8 shows a detail of the upper rim of a drum having an aperture in the rim,

Figure 9 shows a detail of the lower rim of a drum having a carrying handle above the rim,

Figure 10 shows a section through a barrel according to the present invention made by a diagonal, with ribs added to reinforce the side stop surface,

Figure 11 shows a section through a foot of a drum according to the present invention with a shoe variant joined by means of spot welding,

Figure 12 shows the top of a tam12

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bor in accordance with the present invention, equipped with a cap,

Figure 13 shows a modified shoe,

Figure 14 shows a modified shoe,

Figure 15 shows a modified foot, and

Figure 16 shows in profile another variant of the present invention.

In Figures 1, 2 and 3, there is shown a stackable, square tampon 1. which comprises a square top 2 having a raised peripheral rim 3 formed with a channel 30 immediately inwardly from the rim. The peripheral ring 3 ® formed as an upward extension of the side stop surface 6. There is a base portion 31 at the bottom of the drum forming the floor 8 of the drum and each of the feet 9 entering the channel 3θ of a drum equal when a plurality of such drums are stacked vertioally one on top of the other,

The foot 9 has a protruding shoulder 10 for seating on the peripheral rim 3 of an equal drum.

The side wall surface 6 is attached to the top 2 and to the base portion 31 at points 5 and 7 respectively, the nature of a possible variant of these joints being shown in Figures 2 and 3 respectively. The side wall surface 6 has presses 11 and 12 which act to strengthen the side wall surface and prevent the dismantling of an empty drum when a full drum is stacked thereon. The pressing 11 is a window-type pressing, while the pressing 12 comprises an essentially vertical rib which is established on the side wall surface 6 to act as a buttress.

A bore 4 for a catch member is open

to top 2,

Turning now to Figure 4, there is shown a cross-sectional view of a drum in accordance with the present invention, seen from the inside of the drum. The compressed or laminated cam 10 is seen from the interior together with the joint 7 between

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the side wall surface 6 and the base portion 31. When the drum is used, the space within the foot 9 may be filled with a resin or other sealant compound up to the level of the floor 8 to prevent residue buildup when the drum is dumped.

The presses 12 which act as buttresses can be formed in pairs arranged adjacent at least some of the vertical edges of the drum, with a rib of each pair being placed on each side of the respective vertical edge.

Figures 6 and 7 show, respectively, a view analogous to that of Figure 4, but with a drainage hole 13 opened in the foot wall 9 ^and a cut by a foot of a drum according to the present invention with details of a shoe 14 which has a drainage hole 17 in its sole.

In Figure 7, shoe 14 follows virtually the foot profile 9 · θ drain hole 17 pierces shoe 14 and foot 15, and is closed by a flow plug 16. In such embodiments, the foot seal as described above has particular utility,

The inclined surface 15 which forms the inner surface of the drum is inclined between the sole 32 of the foot and the drum floor 8, such as the inclined surface of the shoe 14. This inclined surface 14 is particularly useful when the drum is be lifted by a forklift when the forks are pointed from any offset position when hitting this surface.

Figure 8 shows a detail of the upper rim 3 of a drum having an aperture 18 in the rim. The aperture has an inner liner sleeve 19 which extends through the aperture and has a collar for retaining the sleeve within said aperture. This aperture can act as a fixation point for a handle or lifting hook. By making a series of sleeve-covered apertures in the manner described above, it is possible to secure together a plurality of sleeves 14 56.258

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or fastening an insulated drum to a support structure or member by use of a threaded fastener to a shaped stud or the like. In addition, the aperture may have the function of draining water from the channel without weakening the drum structure.

An additional feature shown in Figure 8 is the inward embossing 60 of the side wall surface 6, which in this example rests on the lower surface of the top 2 along the line 6l. With a stamping into this type, a structure can be produced by means of which a full drum can be manipulated without deformation.

Figure 9 shows a detail of the lower joint 7, i.e. the junction at the lower edge of the side wall 6. In this variant of the present invention, a handle 20 is stamped on the side wall 6 above the joint. Alternatively or in addition, there may be an analog handle in the form of a stamping into the side wall below the top joint 5.

Figure 10 shows a section through a barrel according to the present invention made by a diagonal, with ribs 21 added to reinforce the side wall surfaces 6. The added skirts are represented in a "St. Andrew's Cross" formation, but other formations may be used, for example diagonal canals,

vertical or horizontal. As a further alternative, the formation of "St. Andrew's Cross" may extend over an entire body of at least one polyhedral drum in a manner analogous to that of gasoline containers.

Figure 10 also shows a loose handle 34 attached to the side wall surface by means of fixedly attached assemblies to the surface.

Figure 11 shows a section through a foot 9 of a drum according to the present invention with a variant of the shoe 22 joined by means of spot welding at points 23. It should be noted that this shoe does not follow the

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profile of the foot over its entire outer surface and thus forms an energy absorbing member to provide greater mechanical protection to the drum in handling and to compensate for the effects of environmental shock or vibrations during storage and transport.

Figure 12 shows the upper portion of a drum in accordance with the present invention, a drum having a cap 25, on the top 2. The cap 25 may be located in the center or off-center. A pendant collar 24 forms a securing point for a bag 27, which is secured in place by a ring 28 having a centering means 29. The cap may be held in place by a sealing ring 26 which may have deformable protrusions to hold the cap in place in the event of a collision.

13 shows a modified shoe 40 attached to a foot 49 having a laminated shoulder 4l. Another optional feature is shown in the figure, in which a D-shaped ring 48 passes through the central void 42 of the mine, thereby permitting easier handling of the drum.

Figure 14 shows a modified shoe 43 attached to a foot 5θ, which has a corresponding aperture 44 in a stamping into the foot 48, whereby a lifting hook or the like (not shown) can enter the shoe into the foot and thereby allowing the drum to be raised.

Figure 15 depicts a modified foot 45, with a corresponding inward embossment 46 that accompanies virtually the inward embossing profile 47 of the shoe 51, whereby a lifting hook or the like (not shown) can enter the embossing into the shoe and thereby enable the drum to be raised. In either of the above two cases, as shown in Figures 14 and 15, the opening suitable for entering therein the lifting hook or the like may be threaded, or equipped by

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any other means with means for locking a means of transport in its place. In addition, the drum floor 8 has at least one inward embossing (of which only one is shown, referenced 57), which acts as a support for transporting and / or handling the drum.

Figure 16 is a further variant of the present invention in which the foot 54 is suitable for entry into a shoe 53 having a 55 ° laminate step

A cable or wire 56 passes through a void between the foot 54 and the shoe 53, thereby allowing easier handling of the drum.

The deposit of the first application for the invention described above was made in Great Britain on 29 March 1984 under No. 84 08088.

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Claims

Polyvalent stackable drum, improved

which comprises:

(a) a top having a protruding hoop upwardly along the entire perimeter, with one or more apertures formed with a channel inwardly from the rim, having an aperture for a cap,

b) a base portion having a plurality of blades which are to enter the channel of an identical drum stacked thereon, each blade having a protruding step for seating in the peripheral rim of said identical drum, and

c) a side wall surface with compressed ridges, the peripheral ring extending upwardly from said side wall;

characterized in that a foot has at least one shoe attached thereto, in that the cap has a depending flange for closing the top aperture, said aperture having an inwardly wound edge, from the drum, to In order to retain a bag for the inner lining of the drum,

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so that the apertures of the peripheral ring have an inner sleeve that extends through the aperture and is retracted to be retained.

The stackable polygonal drum as claimed in claim 1, characterized in that the drum is a preferably quadrangular prism "

The stackable polygonal drum, improved according to claim 1, characterized in that the foot having the shoe is shorter than the others, so as to coincide with the height of the shoe.

The stackable polygonal drum is improved according to claims 1 and 3, characterized in that the protruding step of each stacking foot is fed into the respective shoe.

5. A stackable polygonal drum according to claim 4, characterized in that the shoe has a handle for movement.

An improved stackable polygonal drum according to claim 5, characterized in that the base of at least one foot having a shoe also has an inwardly compressed means following the shoe.

An improved stackable polygonal drum according to claim 1, characterized in that the side wall surface has at least one inwardly compressing means which forms a horizontal channel for the travel handle.

The stackable polygonal drum as claimed in claim 1, characterized in that the apertures of the peripheral ring are suitable for entering a movement handle.

Improved stackable polygonal drum according to claim 1, characterized in that there is a sub-vertical groove at least on the side wall surface to serve as an anchor.

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An improved stackable polygonal drum according to claim 9, characterized in that said grooves are formed in pairs arranged contiguously with some or all of the vertical edges of the drum.