Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent
1995-07-21
1997-10-21
Moore, Chris K.
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
15 42, 15 491, 15201, 15398, 15365, A47L 906
Patent
active
056782799
DESCRIPTION:
BRIEF SUMMARY
FIELD AND BACKGROUND OF THE INVENTION
The invention relates to a floor care appliance, in particular a vacuum cleaning appliance, for example a vacuum cleaner or a floor polisher, having downwardly directed bristles disposed preferably at its outer periphery, the bristles being secured in a mounting or holding strip and the mounting strip being held in a positive manner enclosed in a downwardly opening receiving groove portion of the appliance, which receiving groove portion has sidewalls, inwardly extending projections being disposed on the sidewalls.
Floor care appliances, in particular vacuum cleaning appliances of the kind mentioned initially having downwardly directed bristles, are known. In this connection, constructions are preferred in which the bristles are secured in a holding strip, which is held in a downwardly opening receiving groove portion of the appliance by means of projections moulded on the sidewalls of the receiving groove portion and formed as rear cut-outs. There results because of this construction, a difficult mounting and demounting procedure for the bristle-holding strip, which is especially demanding of force. In this regard, the spring force of the receiving groove portion which is preferably made of plastics must in each case be overcome in the region of its projections. Factory assembly of the holding strip in the receiving groove portion is therefore made difficult. Also, a subsequent removal of the holding strip, for example for the purpose of exchanging bristles which have become worn out by use, proves to be especially demanding of force, since here also the holding strip must be taken out of the retaining groove portion by overcoming the spring force of the projections. In a further known embodiment, it is provided that the receiving groove portion is furnished with stops or abutments disposed on its sidewall, an open formation of the receiving groove portion being provided for mounting the bristle-holding strip. This open moulding is realised in such a manner that the base region of the receiving groove portion is formed open, so that the bristle-holding strip may be introduced from above into the receiving groove portion, which holding strip is then supported on the stops or abutments. The leakages resulting from the open formation in the region of the receiving groove portion, in particular the additional air resulting from this, represent significant disadvantages.
SUMMARY OF THE INVENTION
It is an object of the present invention to provide a floor care appliance of the kind in question, in particular a vacuum cleaning appliance with downwardly directed bristles disposed preferably at its outer periphery, which is constructed in a manner such that mounting and demounting of the holding strip provided with the bristles is facilitated in a manner not requiring force.
By the construction of the invention, there is provided a floor care appliance, in particular a vacuum cleaning appliance with downwardly directed bristles disposed preferably at its outer periphery, which bristles with their holding strip may be mounted in the receiving groove portion without the exercise of force.
Also, a correspondingly force-free demounting of the holding strip fitted with the bristles is possible by virtue of this construction. This is achieved in that the projections of one sidewall are movable into a release disposition for the holding strip. For mounting the bristles secured in the holding strip, this holding strip is inserted in the receiving groove portion of the appliance. Subsequently, the projections of one sidewall of the receiving groove portion may be moved from a release disposition for the holding strip into a retaining disposition. The holding or mounting strip provided with the bristles may now be supported on these projections and is thus secured in the receiving groove portion. This operational displaceability of the projections is provided by the construction of the appliance, the projections being here for example being able to be displaceable at right-angles to
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Braun Thomas
Guhne Wieland
Marafante Gentile
Tecchiati Mario
Farber Martin A.
Moore Chris K.
Vorwerk & Co. Interholding GmbH
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