SE501648C2 - Dish of thermoplastic with rolling ring - Google Patents

Abstract

A drum of thermoplastic material comprises a rolling ring which projects from the drum shell in the vicinity of the bottom of the drum. The rolling ring in the cross-section is approximately trapezium-shaped. The narrowest area of the ring is at the base of the ring groove, and the axial end face of the ring is coplanar with the plane of the drum bottom.

Description

5 ~ 01 648 When a filled dish is rolled into an inclined position, it is pressed the bottom edge to a flat position due to the weight of the barrel so that through the rolling a disturbing "kneading work" arises.

Through the abutment of the current bearing and transport ring 'towards the deformation of the bottom edge shall be partially absorbed and the disturbing kneading work is thereby mitigated.

However, rolling the barrel on the bottom edge is still very difficult. In addition, the edge area is in the transition between the barrel jacket and bottom are relatively thin and can be over- loaded during harsh treatment, especially if the drum is rolled in inclined position by hand. Furthermore, there is an increased risk for accidents by overturning and rolling the barrel due to the high rolling ring, under which the worker's foot can get stuck.

As it is only the top support and transport ring which is to form a bracket for any barrel grip used device, by means of which the drum is to be lifted and transported, invites the lower carrying and transport ring to one change to another function. However, one should also here still take into account the deformation forces in case of falls of a filled barrel must be able to be absorbed without damage.

To this end, the lowest carrier and transport the ring is transformed into a scroll ring and take one slightly different position on the barrel jacket. This is accomplished according to invention mainly in that the rolling ring in section approximately has the shape of a trapezoid, whose the narrowest place is in the track bottom of the ring, from which the the incision increases up to a thicker end area of the ring, whose axial end surface ends in the plane of the barrel bottom.

It is easily understood that the lowest deformation zone here has been omitted so that the drum can only be rolled on the the ring.

The impact energy that occurs when a barrel is tilted or vertical position collapses and hits the ground occupied directly in the rolling ring that folds inwards around the narrowest the connection point with the barrel jacket and is thereby deformed elastic until it abuts the conical jacket portion, where 501 648 it is supported. In this way, impact energy is absorbed by the rolling the ring, which is deformed.

Vertical stacking forces are absorbed by the scroll ring and of the barrel bottom by a force distribution over the cylindrical mantle portion out of the ring and over the conical one the mantle part in the barrel bottom. The end surface of the barrel bottom can be anything retracted in relation to the axial of the rolling ring end surface to achieve a secure support on the floor.

The diagonal variable occurring when rolling on the edge the loading can according to the invention be better absorbed by the rolling ring starting from the bottom of the track tilts slightly outwards so that the elongation of the center laid through the ring cross-section the shaft intersects the center of gravity area inside the barrel. This relieves the rolling ring largely from bending forces below rolling so that due to the insignificant deformation a relatively narrow and limited contact surface is achieved the floor, which facilitates the rolling work. The stacking forces is led directly via the rolling ring into the barrel jacket.

In one embodiment of the invention, the the diameter of the radial end face of the rolling ring diameter at the circumference of the barrel jacket, whereby the barrel can be palletized without loss of space.

The invention is described in more detail below with reference to the accompanying drawing, in which Fig. 1 shows a cracked barrel from the side, Fig. 2 on a larger scale a detail of the barrel upper end and Fig. 3 shows on a larger scale a portion of the bottom of the dish.

The drawing shows the cylindrical part 4 of the jacket to a barrel 9 with an upper end surface 10 and an end surface 7 in the barrel bottom. There are cracks not shown in the upper surface of the dish.

Near the upper surface of the dish is placed a solid support and transport ring 11 with a horizontal abutment surface 13 and a vertical abutment surface 14 for gripping arms (not shown) on a barrel gripping device for lifting the barrel.

The support and transport ring 11 is via a connecting ring in one piece connected to the barrel jacket 4. The track bottom between the connecting ring 15 and one conical towards the upper end surface 10 of the drum tapered jacket portion 12 is in the embodiment shown

Claims (4)

É ~> 01 648 located at a distance below the bearing surface 13 of the support and transport ring 11. A rolling ring 1 in the bottom area of the drum has a cross section which has an approximately trapezoidal shape. The narrowest point on the rolling ring 1 lies in the groove bottom 2. In addition to better weldability of the material sprained during manufacture, a kind of hinge joint is thereby provided, around which the ring 1 can bend inwards when it is hit by deformation forces from the side. From the narrowest point, the ring 1 increases to a thickened end area. The axial end surface 5 of the ring 1 ends approximately flush with the barrel bottom 7, which via a conical casing part 6 merges into the cylindrical barrel jacket 4. The radial end surface 3 of the ring corresponds to the outer diameter of the barrel casing 4. The rolling ring 1 slopes slightly conically outwards from the groove bottom The extension of a dotted line laid through the ring cross section. center axis 8 intersects the center of gravity of the barrel 9, which is not shown in the drawing. P a t e n t k r a v Thermoplastic barrels and with a rolling ring projecting from the barrel jacket adjacent to its bottom and in an axial extension of the cylindrical jacket part, the jacket area extending from the bottom of the groove between the rolling ring and the barrel jacket passing conically into the barrel bottom, characterized in that the rolling ring (1) in cross section has approximately the shape of a trapezoid, the narrowest place of which lies in the groove bottom (2) of the ring (1), from which the cross section increases up to a thicker end area of the ring (1), the axial end surface (5) in the barrel bottom (7) plane. Barrel according to claim 1, characterized in that the rolling ring (1) is slightly conically inclined outwards from the groove bottom (2) and that the extension of a center axis (8) laid through the ring cross section intersects the center of gravity area inside the barrel (9). 501 648 Barrel according to claim 2, characterized in that the outer diameter of the radial end surface (3) of the rolling ring (1) corresponds to the diameter at the circumference of the barrel jacket (4). Barrel according to one of Claims 1 to 3, characterized in that the rolling ring (1) is stiffened in its narrowest cross section with evenly distributed axial strips at its inner and outer circumference.