Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Patent
1996-05-01
1999-02-09
Moore, Chris K.
Brushing, scrubbing, and general cleaning
Machines
With air blast or suction
151444, 15410, A47L 932
Patent
active
058678620
DESCRIPTION:
BRIEF SUMMARY
FIELD AND BACKGROUND OF THE INVENTION
The present invention relates to a vacuum cleaning appliance which is operated by an electric motor and having a telescopic handle which is provided with a hand grip.
Such vacuum cleaners are well known. By means of the telescopic handle, the hand grip can be brought to an ergonomically favorable height of use. For this purpose, the telescopic handle generally has several detent attachment positions which can be released by depressing a lock (-release) button. Furthermore, it is also known to detach such a handle from the vacuum cleaner by a lock button in order to be able to use the handle for another appliance. The location of the hand grip on the free end of a telescopic handle is disadvantageous for various tasks. Thus, for instance, it is difficult to manipulate the vacuum cleaner for work close to the floor. Furthermore, when vacuuming cushions or the like the vacuum cleaner which is provided in this case with a suction hose is very inconvenient to handle.
SUMMARY OF THE INVENTION
The object of the present invention is to develop a vacuum cleaning appliance of this type in such a manner that it is easier to use.
As a result of the development of the invention, a vacuum cleaning appliance of this type is easier to handle. This is due, in particular, to the fact that the hand grip is removable and can be attached between a telescopic middle piece and an anchoring point for the handle on the appliance. When working close to the floor or when vacuuming cushions or the like, the hand grip can be removed from the handle and fastened at a different place on the handle. This is done preferably in the region where the handle enters into the motor housing of the vacuum cleaning appliance. In this way, the handle is arranged close to the center of gravity of the vacuum cleaner, which is an advantage with respect, in particular, to its ease of use. Such an arrangement is that the handle is located between the telescopic middle piece and an anchoring point for the handle on the appliance. For this purpose, the telescopic handle is lengthened in ordinary fashion by means of a locking button, whereupon the hand grip is inserted between the telescopic middle piece and the anchoring point for the handle on the appliance. In this connection, it is also possible that, after the positioning of the hand grip in the indicated region, the telescopic middle piece is pushed back again in the direction towards the anchoring point for the handle, a locking being thereby effected between the hand grip and the telescopic middle piece. This lock also can be opened by a lock button. The hand grip is thus form-locked (held by the shape of the parts) in the region close to the center of gravity of the vacuum cleaner. Particularly when vacuuming cushions, in which case the vacuum cleaner is provided, for instance, with a suction hose, such an arrangement of the hand grip is of particular advantage ergonometrically since particularly in this case the vacuum cleaner is frequently carried and thus the arrangement of the hand grip close to the center of gravity of the vacuum cleaner is favorable. The hand grip can advantageously be arranged on one end of the handle. This arrangement is advantageous, in particular, with ordinary vacuuming of carpets or the like. In this case also, the hand grip is arranged, via a detent, on the end of the handle. The detent can be opened by means of a lock button. In known manner, the telescopic handle can be lengthened so as to permit an ergonomically optimal adaptation to the height of the user. The hand grip which is formed in this manner can be detached from the end of the handle by means of the lock button and, as described above, fastened to the handle at a point closer to the center of gravity. It is particularly advantageous in this connection for the handle to have a stationary base rod on which the telescopic middle piece can be displaced. Upon the displacement of the telescopic middle piece, a free space is formed between the telescopic middle piece and
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Patent Abstracts of Japan, vol. 16, No. 334 (C-09640 Jul. 21, 1992 & JP,A, 04 097 718 (Matsushita Electric Ind Co) Mar. 30, 1992 see abstract.
Patent Abstracts of Japan, vol. 17, No. 93 (C-1029) 24, Feb. 1993 & JP, A,04 285517 (Sanyo Electric Co. Ltd) 9 Oct. 1992 see abstract.
Patent Abstracts of Japan, vol. 16, No. 164 (C-0931) 21, Apr. 1992 & JP,A,04 012 721 (Mitsubishi Electric Home Appliance Co. Ltd) 17 Jan. 1992, see abstract.
Patent Abstracts of Japan, vol. 17, No. 232 (C-1056) 12, May 1993 & JP,A,04 364 822 (Sharp Co) 17, Dec. 1992, see abstract.
Ahlf Heinz Jurgen
Helmes Ludger
Strohmeyer Rolf
Farber Martin A.
Moore Chris K.
Vorwerk & Co. Interholding GmbH
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