Patent ID: 8882415

Claim:
A telescopic cover of a machine tool, which comprises a pair of first cover members attached to a mobile element capable of reciprocating relative to a fixed portion of the machine tool in a predetermined linear direction and disposed for movement along with the mobile element, a pair of second cover members supported by the pair of first cover members, and a connecting member which connects the pair of second cover members to each other, wherein the pair of second cover members are movable in the linear direction in association with the action of the pair of first cover members, and the telescopic cover further comprises: a first pulley and a second pulley individually disposed on a joint body formed of the pair of second cover members and the connecting member, at a predetermined distance from each other in the linear direction; and a single wire stretched around and between the first and second pulleys, wherein one and the other end portions of the wire are secured to the fixed portion on one side of a line segment which connects the respective centers of rotation of the first and second pulleys and a middle portion of the wire is secured to the mobile element on the other side of the line segment.