Machine tool
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United States of America Patent
Stats
-
May 8, 2001
Grant Date -
N/A
app pub date -
Oct 16, 1998
filing date -
Dec 3, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A machine tool in which a feed member is fed in a feeding direction relative to a fixed member wherein the feed member is guided by a linear linkage mechanism including a first arm linked to the fixed member at its one end so as to swivel about a first axis, a second arm having the same length as the first arm and being linked to the first arm at its one end so as to swivel about a second axis and also linked to the feed member at its other end so as to swivel about a third axis. A first gear is secured on the fixed member at the one end of the first arm and is coaxial with the first axis. A second gear is secured on the second arm at the other end thereof and is coaxial with the second axis. A chain is provided around the first and the second gears. The first gear has a diameter twice that of the second gear.
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