Patent ID: 11904393
Assignee: ISCAR, LTD.
Field: Machine tools (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. An elongated insert holder (24), having a holder longitudinal axis (B) defining opposite forward to rearward directions (DF, DR), the insert holder (24) comprising:
a holder end surface (28), formed at a forward end of the insert holder (24) and intersected by the holder longitudinal axis (B);
a holder peripheral surface (26) extending circumferentially about the holder longitudinal axis (B) and comprising a pocket near side holder surface (32a) and a pocket far side holder surface (32b);
a shank portion (34) and an insert mounting portion (36) located at a forward end of the shank portion (34);
upper and lower jaws (38, 40) which are spaced apart by a clamping recess (42) recessed in the holder end surface (28), the upper jaw (38) being resiliently movable with respect to the lower jaw (40) upon rotation around an angled pivot axis (P); and
a forwardly protruding clamping finger (56) and a forwardly protruding support rib (58) located on the upper and lower jaws (38, 40), respectively; and
an insert receiving pocket (60) extending along a pocket longitudinal axis (L) and configured to receive a cutting insert therein, the insert receiving pocket (60) being formed in the clamping recess (42) and defined, at least partially, by pocket upper and lower surfaces (62a, 62b) formed on the upper and lower jaws (38, 40), respectively, and extending onto the clamping finger (56) and support rib (58), respectively, to define a pocket front opening (66);
wherein:
the insert receiving pocket (60) opens out to the pocket near side holder surface (32a); the resilient upper jaw (38) and the lower jaw (40) are connected by an angled hinge portion (50);
the clamping recess (42) is defined partially by an elongated recess hinge surface (52) formed on the angled hinge portion (50), between the upper and lower jaws (38, 40);
the elongated recess hinge surface (52) comprises a first hinge end (54a) and a second hinge end (54b), longitudinally spaced apart from one another along the holder longitudinal axis (B); and
the second hinge end (54b) is located forward of the first hinge end (54a).