Coaxial mounting seat for the shank of a toolholder

Details Coaxial mounting seat for the shank of a toolholder Coaxial mounting seat for the shank of a toolholder

2006-05-16

2006-05-16

Ashley, Boyer D. (Department: 3722)

Chucks or sockets

Longitudinal screw clamp

C279S157000, C409S231000

Reexamination Certificate

active

07044478

ABSTRACT:
A mounting seat (1) for machine-tools allowing coaxial engagement of the shank (2c) of a toolholder member (2) includes internally a cylindrical bush (3) supporting a plurality of ball bearings (4i) arranged without play between the internal surface (1i) of the mounting seat (1) and the external surface (2e) of the shank (2c). The bush (3) is able to perform an axial sliding movement (S) towards the outside of the mounting seat (1) over a length smaller than or equal to the axial length of its zone occupied by the ball bearings (4i), further axial travel thereof being prevented by end-of-travel stop elements (3s, 1r) and the abovementioned bush (3) having, mounted on it, elements able to prevent separation of the ball bearings (4n) when the zone thereof occupied by the latter is located outside of the mounting seat (1).

REFERENCES:
patent: 3521896 (1970-07-01), Masakazu
patent: 3774928 (1973-11-01), Hanak et al.
patent: 5158408 (1992-10-01), Naito
patent: 5322304 (1994-06-01), Rivin
patent: 5622373 (1997-04-01), Tagami
patent: 5788249 (1998-08-01), Tagami
patent: 5997226 (1999-12-01), Tagami
patent: 6779955 (2004-08-01), Rivin
Patent Abstracts of Japan vol. 007, No. 092 (M-298), Apr. 16, 1983 & JP 058 015639 A (Seiwa Seimitsu Kouki), Jan. 29, 1983 abstract.

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