Claims
- 1. A device for cutting sheet material, comprising:
- (A) a dolly disk;
- (B) a pressure disk; and
- (C) a cutting disk which is detachably and coaxially clamped between said dolly disk and said pressure disk, said cutting disk having a diameter which is greater than the larger of the diameters of said dolly disk and said pressure disk,
- wherein said cutting disk has two lateral surfaces that are substantially parallel to a center plane of said cutting disk and a peripheral surface with a cross section substantially symmetric to said center plane;
- wherein said peripheral surface has a rounded summit area and two straight flanks which are oblique to said center plane, said flanks connecting said rounded summit area with said two lateral surfaces; and
- wherein said cutting disk has a thickness which is sufficiently small to allow said peripheral surface thereof to perform a cutting operation.
- 2. The device as claimed in claim 1, wherein said diameter of said cutting disk is between 0.50 and 0.70 mm greater than the larger of the diameters of said dolly disk and said pressure disk.
- 3. The device as claimed in claim 3, wherein said diameter of said cutting disk is between 0.55 and 0.65 mm greater than the larger of the diameters of said dolly disk and said pressure disk.
- 4. The device as claimed in claim 2, wherein said thickness of said cutting disk is between 0.08 and 0.15 min.
- 5. The device as claimed in claim 4, wherein said thickness of said cutting disk is between 0.10 and 0.13 mm.
- 6. The device as claimed in claim 1, wherein said cutting disk is composed of one of carbon steel and chromium steel.
- 7. The device as claimed in claim 1, further comprising a rotatable dolly roller for supporting said sheet material on a side of said material which faces away from said cutting disk.
- 8. The device as claimed in claim 7, wherein said dolly roller has a peripheral surface which is composed of hardened steel.
- 9. The device as claimed in claim 1, wherein said peripheral surface is provided with axial grooves.
- 10. The device as claimed in claim 9, wherein the depth of said axial grooves is between 0.20 mm and 0.25 mm.
- 11. The device as claimed in claim 10, wherein the depth of said axial grooves is between 0.21 mm and 0.24 mm.
- 12. The device as claimed in claim 1, wherein the device for cutting is a device for performing, with respect to said sheet material, a function selected from the group consisting of: cutting through, cutting into, perforating through, and perforating into.
- 13. The device as claimed in claim 1, wherein the sheet material is selected from the group consisting of paper, metal foil, plastic film, and a label material disposed on a backing.
- 14. A method of cutting sheet material, comprising:
- (A) providing a cutting disk which is detachably and coaxially clamped between a dolly disk and a pressure disk, said cutting disk having a diameter which is greater than the larger of the diameters of said dolly disk and said pressure disk;
- wherein said cutting disk has two lateral surfaces that are substantially parallel to a center plane of said cutting disk and a peripheral surface with a cross section substantially symmetric to said center plane;
- wherein said peripheral surface has a rounded summit area and two straight flanks which are oblique to said center plane, said flanks connecting said rounded summit area with said two lateral surfaces; and
- (B) cutting said sheet material with a peripheral surface of said cutting disk.
- 15. The method as claimed in claim 14, wherein said step (B) includes the step of cutting said sheet material with said cutting disk having a thickness which is between 0.08 and 0.15 mm.
- 16. The method as claimed in claim 15, wherein said step (B) includes the step of cutting said sheet material with said cutting disk having a thickness which is between 0.10 and 0.13 mm.
- 17. The method as claimed in claim 14, wherein said step (A) includes the step of providing said peripheral surface with axial grooves.
- 18. The method as claimed in claim 17, wherein said step (A) includes the step of providing said grooves to a depth between 0.20 mm and 0.25 mm.
- 19. The method as claimed in claim 18, wherein said step (A) includes the step of providing said grooves to a depth between 0.21 mm and 0.24 mm.
Priority Claims (1)
Number |
Date |
Country |
Kind |
41 32 120.0 |
Sep 1991 |
DEX |
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Parent Case Info
The present application is a divisional of U.S. patent application Ser. No. 08/084,446, filed Jul. 1, 1993, now U.S. Pat. No. 5,309,792, issued May 10, 1994, which is a divisional of U.S. patent application Ser. No. 07/806,289, filed Dec. 13, 1991, now abandoned.
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Divisions (2)
|
Number |
Date |
Country |
Parent |
84446 |
Jul 1993 |
|
Parent |
806289 |
Dec 1991 |
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