Cutting – With tool sharpener or smoother – Spatially fixed tool
Patent
1983-08-18
1985-08-27
Meister, James M.
Cutting
With tool sharpener or smoother
Spatially fixed tool
83 13, 76 82, 76 85, B26D 120, B26D 712
Patent
active
045371032
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to an arrangement for a cutting device which comprises a circular cutting blade which is preferably mounted so that it can rotate freely and is supported so that it can be displaced across a web of material which it is desired to cut, consisting, for example, of a paper web which can be fed out from a roll, this circular cutting blade being partially accommodated in a tubular accommodating member which is equipped with a slit and extends across the web of material.
The main object of the present invention is primarily to provide a device of the kind described above which enables the circular blade to be made to rotate and to be sharpened as it is displaced across the web of material, without any component requiring adjustment or replacement to accomplish this.
The said object is achieved with a device according to the present invention which is primarily characterised in that the accommodating member is spring-loaded to make it rotate towards the circular blade, causing it to rest against and co-act with the latter via a metal part so that as the circular blade is being displaced along the accommodating member with the said close contact effect it is made to rotate, while simultaneously being sharpened against the said metal part.
The invention is described in the following with reference to the accompanying drawings on which:
FIG. 1 shows the cutting device with an associated housing, viewed at an angle from the front,
FIG. 2 shows the cutting device viewed at an angle from the front, looking from one of its ends, with parts of the housing shown partially pivoted up,
FIG. 3 shows the cutting device, viewed from its other end, with parts of the housing pivoted up,
FIG. 4 is a schematic cross-section view of the cutting device, and
FIG. 5 shows the actual cutting device with its associated mounting, viewed at an angle to the cutting device.
Enclosed in a housing which is designated with the numeral 1 on the drawings there is a mounting arrangement 2, a feed arrangement 3 and a cutting device 4 for a web 5A of material which may be fed out, for example, from a roll 5 consisting, for example, of paper or some other suitable material. One end piece 1A of the housing 1 encloses drive devices 6 and 7 for the said feed arrangement 3 and the cutting device 4 respectively, together with, for example, a plurality of electric motors 8 with associated gears 9. The other end piece 1B of the housing encloses the collective control devices 10 and actuating devices 11 for operating the said feed and cutting devices 3, 4 respectively. The control devices 10 are composed of electrical devices such as circuit boards with their associated electrical components, for example. The actuating devices 11 expediently consist of an automatic slot mechanism 11 which is coin-operated and, by means of a plurality of control knobs 12, allows the selection of a desired amount of material to be fed out of the arrangement from the roll 5 after an appropriate quantity of coins has been inserted through the coin slot 13 of the automatic slot mechanism 11. The actuating devices 11 and the control device 10 are connected to the said drive devices 6, 7 via electrical cables 14 in a manner which is not described in detail.
The mounting arrangement 2 consists expediently of two supporting devices 17 and 18 located at a distance from each other, each of these being attached respectively to a side wall 15 or 16 projecting out from a housing part 1C which may be connected to a wall; these supporting devices 17 and 18 enable a mounting axle 19, which can co-act with a roll 5 of a material web, to be supported and a new roll 5 to be inserted rapidly.
A housing cover 1D which forms part of the housing 1, being connected to the part 1C of the housing and mounted so that it can pivot around a hinge 20, expediently has an aperture 21 through which it is possible to see, like a window, for example, enabling the roll 5 and the feed arrangement 3 to be viewed from the outside.
The feed arrangement 3 consists of a plurality of dri
REFERENCES:
patent: 3181406 (1965-05-01), Sayles
patent: 3496817 (1970-02-01), Staats
patent: 4088049 (1978-05-01), Benedict
patent: 4358975 (1982-11-01), Higgins
Knoble John L.
Meister James M.
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