| 摘要 |
A coupler includes first and second spaced-apart ribs (R1, R2) each defining first and second bores (B1a, B1b, B2a, B2b). The first bore of the first rib is aligned with the first bore of the second rib on a first pin-on axis (L1), and the second bore of the first rib aligned with the second bore of the second rib on a second pin-on axis (L2). A first hook assembly (H1) includes a first hook (FH) adapted to receive a first associated attachment pin (P1). The first hook assembly (H1) is fixed relative to the first and second ribs (r1, R2). A second hook assembly (H2) includes a second hook (SH) adapted to receive a second associated attachment pin (P2). The second hook assembly (H2) is selectively pivotable relative to the first and second ribs (R1, R2) toward and away from the first hook assembly (H1). An actuator (J) is operatively connected to the second hook assembly (H2) to pivot the second hook (H2) assembly selectively relative to the first and second ribs (R1, R2). |
