Textiles: fluid treating apparatus – Machines – Plural fluid treating machines
Patent
1987-10-28
1989-08-15
Stinson, Frankie L.
Textiles: fluid treating apparatus
Machines
Plural fluid treating machines
68 58, 68142, D06E 2104
Patent
active
048563021
DESCRIPTION:
BRIEF SUMMARY
CROSS REFERENCE TO RELATED APPLICATIONS
This application is a national phase application of PCT/EP87/00114 filed 26 Feb. 1987 and based upon German National Application P No. 3607119.0 filed 5 Mar. 1986 under the International Convention.
The invention relates to a batch washing machine with with at least one rotatingly supported and driven cylinder in which several washing compartments are formed.
BACKGROUND OF THE INVENTION
From German patent document DE-OS No. 25 27 502 and the DE-OS No. 28 01 381, a batch washing machine with a twin shell washing drum is known, wherein the inner cylinder is suspended by several chains and is driven rotatingly. The batch washing machine is built as a continuous washing machine, wherein the inner cylinder is subdivided by partitions into several washing compartments, filled with different washing liquids and through which the laundry is passed through, step by step. In order to insure the transport of the laundry, in the inner cylinder spirally configured advancement ribs are provided, which at a corresponding rotating motion of the cylinder move the laundry over the partitions. The inner movable cylinder is surrounded by an outer fixed cylinder or only by a half-shell, a free space being thus created between the two, this space being subdivided into segments, corresponding to the washing compartments, wherein the various washing solutions are kept. The inner cylinder is perforated at least in its lower portion, so that the washing solutions can reach its interior spaces.
Batch washing machines with twin-shell washing drums have the best washing efficiency, however they create problems with the support system of the rotating inner cylinder. The chain has to be passed through the washing liquid, which impairs the lubrication of the chain and leads to a short life span of the chain. German patent document DE-OS No. 25 27 502 atmosphere solve this problem with a special sealing system, which however in practice has proven to have quite unsatisfactory results. Besides, the double function of the chain as a support- and a driving means leads to considerable constructive difficulties. The driven cylinder does not have a perfect rotation and due to displacements of the laundry in its inner space turns erratically. This, together with the various chain elongations in the row of chain drives leads to the danger of the inner and outer cylinder brushing against each other, impairing their operation. German patent document DE-OS No. 28 01 381 tries to solve this problem with a complicated driving technique with dynamic force balancing.
OBJECT OF THE INVENTION
It is therefore the object of the invention to provide a batch washing machine which can have a simpler and safer support- and driving system for the rotating cylinder.
SUMMARY OF THE INVENTION
The invention attains this object in that the cylinder is supported on rollers only at its both ends and also driven there.
The solution according to the invention can be used for all types of batch washing machines, whether their washing drums ar single- or twin shelled. This support system based on exclusively supporting the cylinder at its ends and with the drive in the immediate vicinity of the support point has the advantage that the rotation of the driven and suitably reinforced cylinder is safeguarded in the points where this is actually needed. At the cylinder ends namely feeding- and discharge devices for the laundry reach into the internal space of the cylinder, the cylinder being in an accurate alignment therewith.
In the case of a single-shell washing drum, the support- and drive means act directly upon the outside of the rotating cylinder. In the case of a twin-shell washing drum, according to the invention, the inner cylinder projects beyond the outer fixed cylinder by a certain stretch and is mounted and driven by rollers via this projection. The drive can be managed in both cases in any desired manner. Besides the aforementioned chain drive, a gear drive or a fractional drive is possible. In comparison to the kn
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patent: 2053932 (1936-09-01), Zimarik
patent: 2426455 (1947-08-01), Jorgenson
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patent: 2800786 (1957-07-01), Schang
patent: 2865188 (1958-12-01), Kling et al.
patent: 4094172 (1978-06-01), Arenot
patent: 4619121 (1986-10-01), Mollerus
Dubno Herbert
Kleindienst GmbH Firma
Stinson Frankie L.
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