Cutlery – Cutting tools – With blade moving means
Patent
1986-10-22
1988-07-12
Kazenske, E. R.
Cutlery
Cutting tools
With blade moving means
30228, 30286, B26B 700, B26B 2902
Patent
active
047560851
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a device for the cutting of wallpaper, particularly of wallpaper of any kind that has just been applied to a wall according to the description of claim 1.
Since ceilings or floors are rarely exactly horizontal and parallel usually wallpaper tapes are not cut to the exact length, but always a little longer. After the wallpaper has been applied to the wall, each wallpaper tape is then marked on the upper end at the edge between wall and ceiling and on the lower end at the transition between wall and floor or skirting board, for instance with the back of a pair of scissors or a similar relatively blunt object. Then the wallpaper tape is pulled from the wall on both its ends and it is cut to length along the mark; after that the upper and lower end of the wallpaper tape which is cut to measure is reapplied on the wall.
In DE-PS No. 33 23 144, there is a description of a device for the trimming of wallpaper that has just been applied wherein a plurality of very narrow, approximately 2-3 mm wide knives are arranged parallel on a line. By means of a continuous driven chain, the plurality of knives are actuated in such a manner that within one rotation of the chain all knives are brought to cutting position one after the other by the force of a spring, the total number of knives ensuring that, as a whole, a straight cutting line is being carried out.
On the basis of the small width of the cutting edges of the knives, from the perspective of the observer seeing a wallpaper applied to the wall, a smooth cutting line, in itself straight, is achieved despite possible unevenness along the cutting edge. The cutting can be carried out not only neatly, but also within a very short period of time.
Despite these incontestable advantages, this known device has the disadvantage that, due to the plurality of knives and due to the continuous chain which is driven by a motor, it is relatively heavy and complicated in its structure and thus uneasy to handle, and that is mainly because the wallpaper that has been applied on the wall has to be cut not only at the bottom but also at the top which means that the relatively heavy device usually must be lifted overhead.
Applying wallpaper around a corner, incisions or cutouts, for example for switches, plugs, sockets, and the like, as well as preparative cutting of wallpaper tapes, cannot be carried out with the known device.
According to the invention, a light, handy and simply structured device for the cutting of wallpaper is created, by means of which wallpaper of any kind, that has just been applied can be trimmed with a smooth, neat cut corresponding to the given situation, not only at the usual transition between wall and ceiling, respectively, floor and skirting board, but also at all critical transitions, for example, between mostly perpendicular surfaces abutting mainly under a right angle, in such a manner that it fits exactly, without the wallpaper having to be removed from the wall again. Furthermore, the device according to the invention should also make it possible that incisions and cutouts can be made on the wallpaper as they are necessary, for example, for plugs, sockets or switches, or as well for ventilator covers, shutters and the like. In addition to that, the device according to the invention should be usable for preparatively cutting wallpaper tapes from wallpaper rolls.
Accordingly, this object is achieved in a device of this invention for the cutting of wallpaper of any kind.
According to a preferred embodiment of the present invention, a transfer part, driven by an eccentrically arranged pivot and carrying out an upward and downward lifting movement is arranged in a front housing part. At the end of the transfer part which turns away from the drive an exchangeable knife is attached, an equally exchangeable but stationary knife resting resiliently on it. Both knives projecting from the front housing part are covered up to the moment immediately before the turning on of the electric motor by means of a trigger part which can be shifted a
REFERENCES:
patent: 2125556 (1938-08-01), Glesch
patent: 2911717 (1959-11-01), Knoll
patent: 3006390 (1961-10-01), Draenert
patent: 3009246 (1961-11-01), Witherby
patent: 3262473 (1966-07-01), Elson
patent: 3359637 (1967-12-01), Hansen
patent: 3710445 (1973-01-01), Roth
Folkerts Michael D.
Kazenske E. R.
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