| 摘要 |
PCT No. PCT/SE93/00267 Sec. 371 Date Sep. 28, 1994 Sec. 102(e) Date Sep. 28, 1994 PCT Filed Mar. 30, 1993 PCT Pub. No. WO93/20292 PCT Pub. Date Oct. 14, 1993.A coupling device for connection between the operating arm of an excavator and an implement (e.g. bucket) has upper and lower supports and a tilting device having a hinge with a tilt central axis and a transmission gear mounted to the upper and lower supports for tilting of the implement and the lower support part. The gear is a worm gear which has a segment of a worm wheel which is rigidly connected to the upper support and has its center coinciding with the tilt central axis, and a worm screw rotatably journalled to the lower support and rotated by a reversible hydraulic motor to effect tilting about the tilt central axis. |
