Brushing – scrubbing – and general cleaning – Implements – Fabric
Patent
1994-12-22
1997-03-25
Spisich, Mark
Brushing, scrubbing, and general cleaning
Implements
Fabric
152291, 152294, 152298, 15233, A47L 1320
Patent
active
056132638
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention relates to a cleaning cloth for stretching onto a wiper frame intended for such a cleaning cloth, with pockets for receiving the opposite stretching bow ends.
Known cleaning cloths of this type are either provided with fringes at the edge, are simply stretched over the bow, or protrude via an edge approximately 5 cm beyond the frame edges on all sides.
Cleaning cloths protruding only a short distance beyond the bow edges have been in use for over 25 years, in another construction. The stretching frames also generally belong to the prior art and are everywhere commercially available, so that they are not described in any detail here. The wiper frames are generally introduced in the bent state into the pockets and are then straightened into their extended stable position.
It has now emerged that known stretch cloths were not able to provide adequate wiping in the actual comer area. They were also made up of a plurality of materials (the pockets too were made of fairly rigid plastic), which fact led to difficulties during recycling, due to the sorting out of the various materials, and also brought with it environmental problems due to the high proportion of plastic.
SUMMARY OF THE INVENTION
The object of the invention is to pick up dust and dirt more efficiently than in the case of previous cleaning cloths, and also to provide for better cleaning in the corner areas at the baseboard, without the person who is doing the cleaning having to stoop to any extent and clean these areas possibly with an extra cloth.
This is achieved surprisingly simply by a bead (stiff edge) which lies along the edges of the cleaning cloth and to the outside relative to a seam parallel to the cloth edges, and by a bead which lies to the inside relative to the seam, said seam forming a sort of tilting articulation for the stiffening consisting of the two beads.
The cleaning cloth is preferably turned back on itself at least twice at the edge and stitched, the resulting outer bead being at least three-layered, and the resulting inner bead being at least two-layered.
The width of inner bead and/or outer bead amounts to approximately 2 cm relative to the seam in a preferred embodiment.
The best results have been obtained when the seam was turned back twice and sewn 1 to 2 cm away from the edge. This results in a stiff edge, a kind of bead, which protrudes into the corner and, by means of the firm edge, picks up the dust and dirt more efficiently than do the previously known cleaning cloths. The edge is so firm and short that it does not turn back on itself.
The advantage over previously known cleaning cloth edges which turn back on themselves, and in which the cleaning cloth can lift up on the baseboard and in so doing leave a gap in the corner, lies in the fact that the resulting bead, formed by the double or multiple turn-back and the close seam, guarantees optimal cleaning in the corner.
The multiple turn-back results in a relatively stiff construction which consists of outer bead, inner bead and seam and which forms a sort of tilt when the seam is applied on the bow.
As the bow is pushed in and slips under the inner bead, it presses this "tilt" outward about the seam and thus guarantees an optimal cleaning.
The fact that the pockets consist of the same material as the cloth (the cloth is sewn in once or in several layers for strengthening) affords a considerable advantage from the point of view of environmental technology.
The fact that the seam runs approximately in the center of the double or multiple turn-back at the edge results in a space between the lower bearing surface and the bead so that the bow, during cleaning, can be pushed under the bead from the inside (under the inner bead) and thus prevents the cloth from turning upward, as is still the case with known cloths.
The fact that the edges of the cleaning cloth are particularly stiff prevents the dirt from being simply pushed to and fro.
By means of the application of the stretching frame, a downward pressure automatically occu
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patent: 2631324 (1953-03-01), Du Four
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patent: 5115535 (1992-05-01), Ferre
Metaform Metallverabeitungsgellschaft mbH Industriegebiet
Spisich Mark
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