FR2634176A1 - BARREL - Google Patents

Abstract

A barrel of thermoplastic synthetic material is provided near each of its bottom surfaces with a hoop. The part 6 of the barrel body extending the cylindrical part 4 and rising from the bottom of the groove 2 towards the bottom 7 of the barrel, has a conical shape. The rolling hoop 1 has a cross section in the shape of a trapezoid, the narrowest side of which is in the region of the bottom of the groove 2 of said hoop; the trapezoid widens towards the thicker end zones of the hoop, the axial end surface of which 5 ends in the plane of the bottom 7 of the barrel.

Description

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  The present invention relates to a barrel of thermoplastic synthetic material provided near its bottom of a hoop protruding from the body or casing of the barrel in the axial extension of the cylindrical portion of said body, and in the zone where the part body or envelope, rising, from the bottom of the groove determined by the hoop to the bottom of the

  barrel, has a conical form of connection with said bottom.

  The carrying and carrying hoops of this type of barrel, which are provided near the bottom surfaces of said barrel and which have a solid cross-section, usually comprise a horizontal contact surface and a vertical contact surface for the arms of a barrel. barrel grabbing tool. In most cases, barrels of this type are essentially blown. Their carrying hoops and transport are obtained during the manufacturing process from the barrel body or casing with which they constitute a single piece. But barrels are also known whose body or tubular casing, on the one hand, and the end zones, on the other hand, are manufactured separately. The barrel end sections, manufactured by injection molding, with their carrying and carrying hoops, are welded to the tubular body of the barrel during a work phase.

separate and subsequent.

  When a filled barrel falls on the ground while being inclined, the carrying hoops and transport are very exposed due to the small thickness of the barrel body or casing. As a result, hoops are preceded by a deformation zone that absorbs most of the shock energy. This effect is obtained by the arrangement of the hoops at a certain distance below the edge of the bottom of the barrel. The body parts or casing of the barrel, rising above the groove of the hoops, have a shape

  conical tightening on the axis of the barrel.

  When the barrel strikes the ground vertically or with an inclination, the zones of elastic end of the barrel being above the hoops,

  are deformed before the hoops themselves are reached.

  As the distance between the hoops and the corresponding end of the barrel is relatively small, the operator can surround with his hand the hoop during the

  tilted roll of the barrel, which allows extremely easy handling.

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  However, when a filled barrel is rolled in an inclined position, the edge of the bottom may be flattened due to the weight of the barrel, which results in inconvenient crushing work during the rolling of the barrel. The support of the corresponding hoop on the ground should partially absorb the deformation of the song of the bottom of the barrel and thus reduce the work of embarrassing treading. Despite this, the rolling of the barrel on its lower edge is still considerably hampered. The area of the song constituting the connection between the body of the barrel and its bottom is relatively thin and can be subjected to excessive effort in case of very hard service, especially in the case of manual rolling of the tilted barrel. The risk of accident is increased during the tilting and rolling of the barrel on the hoop under which

the operator slides his foot.

  In principle, only the carrying and top transport hoops serve as a stop for the gripping tool that lifts and transports the barrel. The lower hoop can be transformed to perform another function. It must be taken into account that the deformation forces occurring during the fall of a filled barrel

  must be absorbed without causing any deterioration.

  For this purpose, the carrier hoop and lower transport must be transformed into rolling hoop and be arranged differently on the body or envelope of the

barrel.

  To achieve this objective, the present invention proposes that the cross section of the rolling hoop has substantially a trapezoid shape whose narrowest side is in the hoop bottom area to flare towards the thicker end zones. hoop, the surface

  axial end of the hoop ending in the plane of the bottom of the barrel.

  This shows that the lower deformable zone has been reduced so that the barrel

  can only be rolled over the rolling hoop.

  The shock energy occurring during the vertical or inclined fall of a barrel, is directly absorbed by the rolling hoop which bends inwards to the narrow zone of connection with the body of the barrel until coming to the contact the conical part of the body of the barrel to lean against it. Of

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  In this way, the energy of shock is absorbed by the rolling hoops which are deformed. The vertical forces due to stacking are absorbed by the rolling hoop and the bottom of the barrel; the distribution of the forces is effected by means of the cylindrical part of the barrel towards the hoop and the bottom of this one. The end surface of the barrel bottom may be arranged slightly recessed with respect to the axial end surface of the rolling hoop in order to obtain an

solid support on the ground.

  When rolling the barrel on its song, it is slightly inclined. In order to improve the absorption of the diagonal load occurring during rolling of the barrel on its edge, the invention proposes that the rolling hoop amounts to

  from the bottom of the groove with a slight conical tilt towards the outside.

  The extension of the median axis of the cross section of the rolling hoop

  cuts the zone of the center of gravity of the barrel.

  Thus, the rolling hoops are largely relieved of the folding forces during rolling so that, due to the deformation, a relatively limited support is obtained on the ground, which facilitates rolling. The stacking forces are transmitted directly by the rolling hoop to the barrel body or casing. Axially distributed stiffening ribs are provided on the part of the hoop presenting the section

cross-section.

  According to the invention, the outer diameter of the radial end surface of the

  rolling hoop corresponds to the maximum diameter of the body of the barrel.

  This allows to palletize the barrel with a minimum space requirement.

  The invention will be explained in a purely indicative manner using the drawings

  attached by way of non-limiting example.

  Figure 1 is a side view of a bung barrel.

  Figure 2 shows an enlarged detail view of the barrel head.

  Figure 3 shows an enlarged detail view of the base of the barrel.

  Finally, we will find a list of the different benchmarks used during

of the description.

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  In the accompanying drawing, the cylindrical portion (4) of the body or casing of the barrel (9) is provided at its ends with a head surface (10) and a base surface (7). In the head surface of the barrel are arranged the non

represented on the drawing.

  In the vicinity of the barrel head there is the carrier and carrying hoop (11) of full cross-section, which has a horizontal contact surface (13) and a vertical contact surface (14) for the arms of the barrel.

  the input tool not shown in the drawing.

  The carrying and carrying hoop (11) is connected to the body (4) of the barrel by a cross member (15) forming one. piece with said body (4) and extending the horizontal contact surface (13). The bottom of the groove, determined by the cross member (15) and the portion (12) of the body of the barrel, the latter (12) being connected to the bottom (10) of the barrel by a conical surface, is arranged, according to the example presented at a certain distance below the

  horizontal contact surface (13) of the carrying and carrying hoop (11).

  The rolling hoop (1), arranged in the area of the base or bottom bottom of the

  barrel, has a cross section of substantially trapezoidal shape.

  The narrowest or narrowest part of the rolling hoop (1) is in the bottom region of its groove (2). Apart from a better ability to weld the compressed material during the manufacturing process, there is obtained here a kind of hinge around which the hoop (1) can bend

  inwards when deformation forces are applied laterally.

  From this narrowest point, the hoop (1) rises towards the area

thicker end.

  The axial end surface (5) of the hoop (1) terminates approximately in the plane of the bottom (7) of the barrel (9) which is extended by the conical portion (6) to end in the cylindrical portion (4) of the body barrel (9). The radial end surface (3) has the same size as the central portion

  cylindrical (4) barrel body (9).

  The rolling hoop (1) is inclined slightly outward from the bottom of the groove (2). The extension of the median axis (8), indicated in dotted line and passing through the cross section of the hoop (1), intersects the area of the center of

  gravity of the barrel (9) not indicated in the drawing.

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  Nomenclature 1. rolling hoop 2. hoop groove (1) 3. radial end surface of the hoop (1) 4. cylindrical part of the barrel body 5. axial end surface of the hoop (1) 6. conical part barrel body 7. barrel base area 8. median axis 9. barrel 10. barrel head surface 11. carrying and carrying hoops 12. conical barrel body 13. horizontal contact surface 14. surface of cask vertical contact 15. crosses

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Claims (4)

claims   1. barrel of thermoplastic synthetic material provided near its bottom with a hoop protruding from the body or casing of the barrel in axial extension of the cylindrical portion of said body and in the zone where the part of the body or envelope rising , from the bottom of the groove determined by the hoop, towards the bottom of the barrel, has a conical shape of connection with said bottom characterized in that the rolling hoop (1) has a substantially trapezoid-shaped cross section of which the the narrowest side is in the area of the bottom of the hoop (1) which tapers towards the thicker end zones of the hoop, the axial end surface (5) of said hoop ending in the plane of the bottom (7). ) of the barrel. Barrel according to Claim 1, characterized in that the hoop (1) rises from the bottom of the groove (2) with a slight inclination towards the outside and that the extension of the spindle median (8) passing through the cross section of the hoop intersects the zone of the center of gravity of the barrel.   Barrel according to Claims 1 and 2, characterized in that the diameter   outside the radial end surface (3) of the hoop (1) corresponds to the   maximum diameter of the body (4) barrel.   Barrel according to one of Claims 1 to 3, characterized in that the part   hoop (1), having the narrowest cross-section, has on its inner and outer peripheral surfaces   axial stiffening distributed regularly.