| 摘要 |
<p>A strap binding apparatus in which a binding strap (3) is fed, held and tensioned by and between a pair of reversible operating wheels (2B, 2T) in a binding head (1) has one of the operating wheels (2B, 2T) rotatably supported on an axis (t) which is located at a predetermined fixed position. The other of the operating wheels (2B, 2T) is rotatably supported on an eccentric axis (b) which is eccentric with respect to a base axis (X) of an eccentric shaft (9). Either the one or the other wheel (2T) is connected to a rotary drive system. The apparatus also includes a supporting plate (8) rotatably supported on the fixed axis, a connecting link (10) connected to the supporting plate (8) and carrying a connecting pin (14), a lever (12) attached to the eccentric shaft (9) and having a slot (13) in which the connecting pin (14) engages to interconnect the supporting plate (8) and the eccentric shaft (9); and, a spring (6) attached to the supporting plate (8) to bias it into one position. Preferably, the one wheel (2T) which is driven is located on the fixed axis and the rotary drive system is connected to the support plate (8) so that reaction loads from the rotary drive system casue rotation of it.</p> |
