US Patent No. 9,457,444

MACHINE TOOL HAVING MOVABLE COVERS


Patent No. 9,457,444
Issue Date October 04, 2016
Title Machine Tool Having Movable Covers
Inventorship Keita Asano, Yamanashi (JP)
Assignee FANUC CORPORATION, Yamanashi (JP)

Claim of US Patent No. 9,457,444

1. A machine tool, comprising:
a cover covering a machining space;
a table;
a saddle; and
a pair of expandable and contractible movable covers respectively disposed on two side surfaces of the table or the saddle
in the moving direction thereof, wherein

one end of each of the expandable and contractible movable covers is fixed to a side surface of the table or the saddle and
the other end of each of the expandable and contractible movable covers is fixed to the cover;

upper surfaces of the movable covers are inclined in a direction perpendicular to the direction of expansion and contraction
of the movable covers in a manner such that they slope down from one side not fixed to any one of the table, cover or saddle
to the other side, and

a direction of inclination of the upper surface of one of the movable covers is opposite to that of the other of the movable
covers so that chips which have fallen onto the upper surfaces of the movable covers flow downward from the other sides of
the movable covers toward opposite sides of the table or saddle in opposite directions.