DK173931B1 - Barrel - Google Patents

Description

DK 173931 B1

BACKGROUND OF THE INVENTION 1. Field of the Invention The invention relates to a barrel of thermoplastic having a protruding roller projecting from the barrel casing near the barrel base in axial extension of the cylindrical sheath portion where the sheath region extending from the barrel to the casing from the groove base is tapered into the barrel floor.

As a rule, barrels are provided on the sheath adjacent to the associated end faces, in solid cross-section, massive support and transport rings with a horizontal and a vertical abutment surface for the gripping arms of a gripping device.

10 These are generally barrels made as a whole by the blowing method, in which the carrier and conveyor rings during manufacture are integrally formed with the casing of the barrel. However, barrels are also known in which the tubular sheath portion and the barrel ends are made separately. The end portions made by injection molding with the carrier and transport rings placed thereon are welded to the tubular barrel body in a further work process.

Since the carrier and transport rings, due to their relatively small thickness, are severely exposed when a filled 20 barrel from a certain height falls obliquely on the ground, a so-called deformation zone must be inserted in which the shock absorbing zone absorbs most of the shock energy. . This is done in such a way that the rings are spaced below the top and bottom edge of the barrel, respectively. The portion of the barrel protruding above the annular groove rises tapered towards the longitudinal axis of the barrel.

If a barrel falls obliquely or vertically to the ground, the elastic barrel portion of the rings deforms before reaching the rings.

Due to the relatively short distance of the rings from the top surface or bottom of the barrel, the person handling the barrel may grip the ring when the barrel is rolled in an oblique position, so that a very convenient handling of the barrel is obtained.

35 When a filled barrel is rolled in an oblique position, the bottom edge is pressed down flat due to the weight of the barrel so that a disturbing "rolling mill" occurs during rolling. With the support of the relevant support and transport ring on the ground, the deformation of the bottom edge must be partially intercepted, thereby mitigating the disturbing rolling work.

5 However, rolling the barrel over the bottom edge is nevertheless very troublesome. In addition, the edge area in the transition between the barrel sheath and bottom is relatively thin and can be overloaded by gentle treatment, especially when the barrel is rolled in an oblique position by hand. Furthermore, there is an increased risk of accidents when tilting and rolling the barrel due to the high-seated rolling under which the worker's foot can get caught.

Since it is only the top carrier and conveyor ring that should withstand a used barrel gripper with which the barrel is to be lifted and transported, the lower carrier and conveyor ring for conversion to another function.

However, here too, it must still be taken into account that the deformation forces can be intercepted without the destruction of a filled barrel without destruction.

20 For this purpose, the lower bearing and transport ring must be transformed into a roller and take a somewhat different position on the barrel sheath.

This is achieved in accordance with the invention in that the cross-sectional roll with approximation takes the form of a trapezoid, the narrowest of which lies in the groove of the ring, from which the cross-section grows in width up to a thicker end region of the ring whose axial end surface terminates in the plane of the barrel floor.

It is seen that the lower deformation zone here is omitted, so that the barrel can only be rolled on the roller.

The impact energy that arises when a barrel strikes in an oblique or vertical position during a downpour is absorbed directly into the roller, which folds inward around the narrow connection point with the barrel cap and thereby deforms elastically until it abuts the conical sheath portion where it is supported.

35 In this way, the shock energy is absorbed by the roller which is deformed.

3 GB 173931 B1 ^ Vertical stacking forces are absorbed by the roller and by the barrel bottom, with a force distribution across the cylindrical sheath portion of the ring and over the conical sheath portion of the barrel base. The end surface of the barrel floor may be slightly retracted relative to the axial end surface of the roller to provide secure support on the floor.

According to the invention, the diagonal load occurring during rolling over the edge can be better absorbed by the rolling starting from the groove bottom slightly outwards, so that the extension of the center axis placed through the annular cross section cuts the center of gravity within the barrel. In this way, the rolling is largely relieved of bending forces during the rolling, so that due to the negligible deformation, a relatively narrow, limited abutment surface 15 is obtained against the floor, which favors the rolling work. The stacking forces are directed directly over the roller into the barrel casing.

In one embodiment of the invention, the outer diameter of the radial end surface of the roller corresponds to the diameter at the circumference of the barrel sheath, whereby the barrel can be palletized 20 without loss.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view of a spindle barrel; FIG. 2 is an enlarged sectional view of the top end of the barrel; and FIG. 3 on a larger scale a section of the bottom portion of the barrel.

In the drawing, reference numeral 4 denotes the cylindrical portion of the casing of a barrel 9, and 10 denotes the top end surface of the barrel 30 and 7 the end surface of the barrel bottom. No spun is shown in the top surface of the barrel.

Near the top surface of the barrel is mounted a massive support and transport ring 11 with a horizontal abutment surface 13 and a vertical abutment surface 14 for gripping arms not shown on a 35 barrel gripper for lifting the barrel.

The carrier and conveyor ring 11 is integrally connected to the barrel casing over a connecting ring 15. The groove base between the connecting ring 15 and a conical section 12 extending towards the top end surface 10 is spaced apart in the illustrated embodiment below the carrier and transport ring 11. abutment surface 13.

A roller ring 1 in the bottom region of the barrel has a cross-section with a trapezoidal shape. The narrowest or narrowest place of the rolling ring 1 lies in the groove bottom 2. In addition to better weldability of the material 10 during manufacture, a kind of charnier is provided here, which the ring 1 can break inwards when it is struck by lateral deformation forces. From the narrowest point, the ring 1 grows to a thickened end region.

The axial end face 5 of the ring 1 ends approximately in plane with the barrel bottom 7, which passes over a conical sheath portion 6 into the cylindrical barrel sheath 4. The radial end face 3 of the ring corresponds to the outer diameter of the barrel sheath 4.

The scroll 1 slightly tapered outwardly from the groove bottom 2. The extension of a dotted 20 mid axis 8 inserted through the ring cross section cuts the center of gravity 9 of the barrel 9, which is not shown in the drawing.

Claims (4)

1. A thermoplastic barrel having an axial extension of the cylindrical shaft protruding from the barrel casing near the bottom of the barrel, the tapered area extending from the groove bottom 5 between the roller and the barrel casing into the barrel bottom, characterized in that the roller (1) in approximate cross-section, is shaped like a trapezoid, the narrowest of which lies in the groove bottom (2) of the ring (1), from which the cross-section grows up to a thicker end region 10 of the ring (1) whose axial end surface (5) terminates in the barrel floor (7). ) plan. Barrel according to claim 1, characterized in that the roller (1) is slightly conical outwardly from the groove bottom (2) and that the extension of the middle axis (8) placed through the ring cross-section (8) intersects the center of gravity within the barrel (9). Barrel according to claims 1 and 2, characterized in that the outer diameter of the radial end surface (3) of the roller (1) corresponds to the diameter at the circumference of the barrel cap (4). 4. A barrel according to the preceding claims, characterized in that the roller (1) in its narrowest cross-section is stiffened with uniformly distributed axial ribs at its inner and outer circumference.