(57) A driving device for let-off-side and take-up-side terry motion members (15, 16)
included in a cloth-shifting-type pile loom (1) includes drive-transmission mechanisms
(20, 30) provided respectively for the two terry motion members (15, 16) and both
linked to a driving shaft (mls) of common driving means (ml) provided for the two
terry motion members (15, 16). The drive-transmission mechanisms (20, 30) include
a rocking member (18) rocked by the driving means (ml), supporting units (24, 34)
respectively supporting the terry motion members (15, 16), and linking means including
at least one linking member (22, 26, 27, 28, 29, 32) that links the rocking member
(18) to the supporting units (24, 34). One of the drive-transmission mechanisms (20,
30) corresponding to the let-off-side or take-up-side terry motion member (15, 16)
is additionally provided with drive-changing means (40, 50, 60, 70) having a designated
actuator (m2) as a driving source and changing a rocking position of one of the supporting
units (24, 34) included in the drive-transmission mechanism (20, 30) with respect
to a certain rotary phase of the driving shaft (m1s). The drive-changing means (40,
50, 60, 70) is actuated in a shifting process of the terry motion member (15, 16).
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