Granted Patent B2

US 12,746,608 · App. 18/029,623 · Granted Sep 29, 2026

Inventors: Mirco Basei (Codogne', IT); Giorgio Pigatti (Cordignano, IT); Oreste Da Rodda (Revine Lago, IT)

Assignee: SILCA S.P.A.

B23C3/355

Abstract

Claims (41)

1 . Clamp for key cutting machine, said clamp comprising:

a lower jaw with a polygonal shape, configured to be placed on a support of a key cutting machine and equipped with a first central hole for crossing a pin fixed to said support and allowing rotation of said lower jaw around said pin, said lower jaw comprising at least a first lower external face facing outwards with respect to said first central hole;

an upper jaw with a polygonal shape, placed above said lower jaw and equipped with a second central hole, aligned with said first central hole, for the crossing of said pin and allowing rotation of said upper jaw around said pin, said upper jaw comprising at least a first upper external face facing outwards with respect to said first central hole;

at least a first lower insert and at least a first upper insert, and

removable fixing means for removably fixing said first lower insert in the first lower seat of said lower jaw and said first insert upper in the first upper seat of said upper jaw,

wherein

said lower jaw is equipped with at least a first lower seat which is obtained on the first lower external face and which is configured to house said at least one first lower insert,

said upper jaw is equipped with at least a first upper seat which is obtained on the first upper external face and which is configured to house said at least one first upper insert configured to cooperate with said first lower insert of said lower jaw to clamp an interposed key.

2 . The clamp according to claim 1 , wherein said fixing means comprise:

at least a first screw placed to pass through said first lower insert and engaged by screwing in said first lower seat of said lower jaw;

at least a second screw placed to cross said first upper insert and engaged by screwing in said first upper seat of said upper jaw.

3 . The clamp according to claim 1 , wherein said fixing means comprise at least one magnetic portion associated and/or integrated in the inserts and configured to be magnetically fixed to a ferromagnetic part associated and/or integrated in the seats, or vice versa.

4 . The clamp according to claim 1 , wherein said fixing means comprise removable mechanical interlocking means and countermeans which are mounted and/or obtained respectively on/in said inserts and on/in said locations.

5 . A clamp for key cutting machine, said clamp comprising:

a lower jaw with a polygonal shape, configured to be placed on a support of a key cutting machine and equipped with a first central hole for crossing a pin fixed to said support and allowing rotation of said lower jaw around said pin, said lower jaw comprising at least a first lower external face facing outwards with respect to said first central hole;

an upper jaw with a polygonal shape, placed above said lower jaw and equipped with a second central hole, aligned with said first central hole, for the crossing of said pin and allowing rotation of said upper jaw around said pin, said upper jaw comprising at least a first upper external face facing outwards with respect to said first central hole;

at least a first lower insert and at least a first upper insert,

wherein

said lower jaw is equipped with at least a first lower seat which is obtained on the first lower external face and which is configured to house said at least one first lower insert,

said upper jaw is equipped with at least a first upper seat which is obtained on the first upper external face and which is configured to house said at least one first upper insert configured to cooperate with said first lower insert of said lower jaw to clamp an interposed key and,

wherein said first lower insert comprises a first lower gripping portion and said first upper insert comprises a first upper gripping portion shaped to hold, in cooperation with said first lower clamp portion, a key interposed therebetween.

6 . A clamp for key cutting machine, said clamp comprising:

a lower jaw with a polygonal shape, configured to be placed on a support of a key cutting machine and equipped with a first central hole for crossing a pin fixed to said support and allowing rotation of said lower jaw around said pin, said lower jaw comprising at least a first lower external face facing outwards with respect to said first central hole;

an upper jaw with a polygonal shape, placed above said lower jaw and equipped with a second central hole, aligned with said first central hole, for the crossing of said pin and allowing rotation of said upper jaw around said pin, said upper jaw comprising at least a first upper external face facing outwards with respect to said first central hole;

at least a first lower insert and at least a first upper insert, and

at least a second lower insert and at least a second upper insert wherein:

said lower jaw is equipped with at least a first lower seat which is obtained on the first lower external face and which is configured to house said at least one first lower insert,

said upper jaw is equipped with at least a first upper seat which is obtained on the first upper external face and which is configured to house said at least one first upper insert configured to cooperate with said first lower insert of said lower jaw to clamp an interposed key.

7 . The clamp according to claim 6 , wherein said second lower insert comprises a second lower gripping portion and said second upper insert comprises a second upper gripping portion shaped to hold, in cooperation with said second lower clamp portion, a key interposed between them.

8 . The clamp according to claim 7 , wherein the second lower gripping portion of said second lower insert is shaped differently than the first lower gripping portion of said first lower insert and the second upper gripping portion of said second upper insert is shaped differently with respect to the first upper gripping portion of said first upper insert.

9 . The clamp according to claim 1 , wherein:

said lower jaw is equipped with at least a second lower seat which is formed on a second lower external face and which is configured to house said at least one second lower insert or said at least one first lower insert;

said upper jaw is equipped with at least a second upper seat which is obtained on a second upper external face and which is configured to house said at least one second upper insert or said at least one first upper insert.

10 . The clamp according to claim 9 , wherein:

said first lower external face and said second lower external face are formed on two mutually opposite faces of the lower jaw, and

said first upper external face and said second upper external face are formed on two mutually opposite faces of the upper jaw.

11 . The clamp according to claim 1 , wherein:

on each external face of said lower jaw there is a corresponding lower seat for housing and removable fixing of at least one lower insert;

on each external face of said upper jaw there is a corresponding upper seat for housing and removable fixing of at least one upper insert;

said lower inserts comprise a corresponding lower gripping portion and said upper inserts comprise a corresponding upper gripping portion shaped to hold, in cooperation with said portion clamp, a key interposed between them.

12 . The clamp according to claim 1 , wherein at least one face of said lower jaw and of said upper jaw is devoid of seats for housing and removable fixing of an insert.

Assignments (1)

Priority Claims (1)

Continuity (1)

References Cited (15)