US 11,938,549 B2Granted

Tool coupling

AssigneeIscar, Ltd.

InventorGil Hecht

Life of this patent

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Abstract

A tool coupling extends along a longitudinal axis and has a first component, a second component, and a clamp for fastening the first component to the second component. The first component has a male clamping portion, the second component has a female clamping portion, and the clamp is located in an inner cavity of the second component. The male clamping portion has a first abutment region located axially rearward of a first plane perpendicular to the longitudinal axis, the inner cavity has a second abutment region located axially forward of the first plane, and the first and second abutment regions face towards the first plane. In a fastened state, a clamp first engagement region of the clamp makes clamping contact with the male clamping portion's first abutment region, and a clamp second engagement region of the clamp makes clamping contact with the inner cavity's second abutment region.

Claims27

Dependent claims

A tool coupling (20) extending in a forward-to-rearward direction (DF, DR) along a longitudinal axis (A1), and having a first plane (P1) perpendicular to the longitudinal axis (A1) and a second plane (P2) containing the longitudinal axis (A1) and transverse to the first plane (P1), the second plane (P2) having an upper side (SU) defining an upward direction (DU) of the tool coupling (20) and a lower side (SL) which is opposite to the upper side (SU) and defines a downward direction (DD) of the tool coupling (20), the tool coupling (20) comprising:

a first component (22), a second component (24), and a clamp (26) for fastening the first component (22) to the second component (24),
the first component (22) having a first body portion (28) and a male clamping portion (30) extending from a rear mating end (32) of the first body portion (28) in the rearward direction (DR),
the second component (24) having a second body portion (34), a female clamping portion (36), and an inner cavity (38), the female clamping portion (36) opening out to a forward mating end (40) of the second body portion (34) and the inner cavity (38) communicating with the female clamping portion (36), and
the clamp (26) located in the inner cavity (38) and having a clamp forward engagement portion (42) and a clamp rear drive portion (44), the clamp forward engagement portion (42) having a clamp first engagement region (62) and a clamp second engagement region (64), wherein:
the male clamping portion (30) occupies the female clamping portion (36) and has a first abutment region (46) located axially rearward of the first plane (P1);
the inner cavity (38) has a second abutment region (48) located axially forward of the first plane (P1), the second abutment region (48) being located on the upper side (SU) of the second plane (P2);
each of the first and second abutment regions (46, 48) faces towards the first plane (P1);
and
in a fastened state of the tool coupling (20):
a rear mating surface (58) of the rear mating end (32) makes clamping contact with a forward mating surface (60) of the forward mating end (40);
the clamp first engagement region (62) makes clamping contact with the male clamping portion's first abutment region (46);
and
the clamp second engagement region (64) makes clamping contact with the inner cavity's second abutment region (48).

10 more elements

A tool coupling (20) extending in a forward-to-rearward direction (DF, DR) along a longitudinal axis (A1), and comprising:

a forward component (22) having a first body portion (28) and a male clamping portion (30) extending from a rear mating end (32) of the first body portion (28) in the rearward direction (DR), the male coupling portion (30) comprising a male hook (31) projecting in the rearward direction (DR);
a rear component (24) having a second body portion (34), a female clamping portion (36), and an inner cavity (38), the female clamping portion (36) opening out to a forward mating end (40) of the second body portion (34) and the inner cavity (38) communicating with the female clamping portion (36);
and
a clamp (26) located in the inner cavity (38), the clamp (26) having a clamp forward engagement portion (42) and a clamp rear drive portion (44), the clamp forward engagement portion (42) comprising a clamp hook (43) which projects in the forward direction (DF);
wherein;
the male clamping portion (30) occupies the female clamping portion (36);
and
upon actuation of a screw member (104) operatively engaged to the clamp rear drive portion (44), the tool coupling (20) is adjustable between
a fastened state in which:
the clamp hook (43) is engaged to the male hook (31);
and
a rear mating surface (58) of the rear mating end (32) makes clamping contact with a forward mating surface (60) of the forward mating end (40);
an unfastened state in which:
the clamp hook (43) is disengaged from the male hook (31), and wherein:
actuation of the screw member (104) about a screw axis (A4) results in rotation of the clamp (26) about a swivel axis (A5) transverse to the longitudinal axis (A1);
and
the swivel axis (A5) is not fixed relative to the rear component (24).

14 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/073,617Filed 19 Oct 2020
Published: US 2022/0118527 A121 Apr 2022
Granted: 26 Mar 2024
Term ends: Not estimatedThe source records don’t support an estimate.

Classification14 codes

B23B 29/046
Tool holders for a single cutting tool: with an intermediary toolholder
B23B 31/103
Characterised by the retaining or gripping devices or their immediate operating means: retention by pivotal elements, e.g. catches, pawls
F16B 2/065
External, i.e. with contracting action: using screw-thread elements
F16B 2/18
Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening:…