| 摘要 |
Scissors ( 1 ) having a first lever ( 2 ) and a second lever ( 2 ') provided with respective coaxial holes ( 25, 25 ') in their central portions ( 20, 20 ') and a rivet ( 4 ) disposed in the holes ( 25, 25 ') of the levers ( 2, 2 '). The scissors further include a bush ( 3 ) interposed between the rivet ( 4 ) and the surface of the hole ( 25 ) of the first lever ( 2 ) so that the first lever ( 2 ) can rotate with respect to the bush ( 3 ) which is maintained integral with the rivet ( 4 ), and a washer ( 5 ) interposed between the rivet ( 4 ) and the surface of the hole ( 25 ') of the second lever ( 2 '), so that the outward deformation of a portion ( 42 ) of the rivet ( 4 ) compresses the washer ( 5 ) on the central part ( 20 ') of the second lever, making the second lever ( 2 ') integral with the rivet ( 4 ).
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