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US 3,951,013 AGranted
Multi-thickness plastic handled scissors
OwnerItalo Marco Levi Laurentiinventor
Life of this patent
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OwnerItalo Marco Levi Laurentiinventor
Estimating the term…
In a preferred embodiment of the present invention, there are provided scissors having cold stamped scissor blade elements which do not include any bend in the shank of either blade element, the difference in level of the respective blade elements relative to one-another being compensated for by having plastic insert rings mounted on each of opposite sides of each blade element's metal ring support, with the upper blade having its lower plastic insert of greater thickness than its upper plastic ring insert, and with the lower blade having its upper plastic ring insert of greater thickness than its lower ring insert, such that the unitary handle in the assembled state of one blade element is on the same level as the unitary handle in the assembled state of the other blade element in so far as respective upper surfaces extending in a common plane and respective lower surfaces extending in another common plane. By virture of the utilization of plastic ring inserts of different thickness for upper and lower ring inserts for each respective blade element's support ring, there is avoided the costly operation of bending one of the shanks of one of the blade elements as well as avoiding any need for a subsequent aligning of the blade element after a prior art bending operation, since because no shank bending is required by the present invention the blade element remains in alignment. Accordingly, the novel construction made possible by a process of lesser steps and cost of production results in high quality scissors at competitively low consumer cost.
A process comprising in combination providing a flat-faced metal sheet, the sheet having predetermined thickness for a scissor blade to be formed therefrom, cold stamping to obtain a scissor element having a blade, shank and handle thereof extending in a common plane and with defined rings in the handle and with pivotable-anchoring shank hole defined therein, conditioning and readying each scissor half, forming upper and lower plastic ring inserts respectively for each of upper and lower faces of the structure of the defined rings, said forming including making one of the plastic ring inserts thicker than the other for each scissor half, mounting a thinner one of the inserts on the top face of the upper scissor half and a thicker one of the inserts on the bottom face of the upper scissor half on the ring structure thereof, and mounting a thicker one of the inserts on the top face of the lower scissor half and a thinner one of the inserts on the bottom face of the lower scissor half, and anchoring together in operative relationship to one-another the upper and lower scissor halves by mounting an anchoring element within the pivotable-anchoring shank holes of the respective upper and lower scissor halves with the shank holes in substantial alignment with one-another.
Dependencies are inferred from the claim text.