Scissors made of steel stampings |
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| 申请号 | US48942774 | 申请日 | 1974-07-17 | 公开(公告)号 | US3913422A | 公开(公告)日 | 1975-10-21 |
| 申请人 | KRUSIUS BROTHERS; | 发明人 | WEBER DIETRICH; | ||||
| 摘要 | Shears made of cut parts of a steel sheet, the upper and lower portions being integrally structured and each having a cutting blade, a shank and a finger hole. | ||||||
| 权利要求 | 1. A method of making shears having a first and a second shear comprising the steps of: A. cutting from steel sheet two integral parts each of substantially two arms-shape, the arms being disposed in an angle to one another, such that the first arm includes a cutting edge and a stem, and the second arm has a slight Sconfiguration and a strap projecting from the arms junction, B. a. a first bending step for bending the second arm of each part along with the strap to form substantially a ring structure, the ends of the arm and strap substantially abutting, b. a second bending step for bending said ring structure angularly out of its plane, and C. joining the first and second shears by a shear pin traversing both shears. 2. The method as claimed in claim 1 wherein said first bending step is performed such that said ring structure is of circular configuration. 3. The method as claimed in claim 1 wherein said first bending step is performed such that said ring structure is of oval configuration. 4. The method as claimed in claim 1 wherein said second bending step is performed such that the ring structure is bent out of its plane by an angle of less than 90*. 5. The method as claimed in claim 1 wherein said second bending step is performed such that the ring structure is bent out of its plane by an angle exceeding 90*. 6. The method as claimed in claim 1 wherein the two arms-shape is formed in a V configuration. 7. The method as claimed in claim 1 wherein the two arms-shape is formed in an L configuration. 8. The method as claimed in claim 1 wherein the two arms-shape is formed in a T configuration. 9. The method as claimed in claim 1 comprising the steps of providing a gap in the ring structure. 10. The method as claimed in claim 1 wherein said bending steps are performed such that the ring structures have, in side elevation, parallelogramlike configurations, each inclining in a direction different from the other. 11. The method as claimed in claim 1 wherein said bending steps are performed such that the ring structure is disposed obliquely to the longitudinal direction of the shears forming an obtuse angle with the associated cutting edge. |
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