| 摘要 |
<p>A lance driving mechanism for a shuttleless loom includes a sley which is mounted for reciprocal pivotal movement, a pivotally mounted sector unit having a sector gear thereon, a lance band mounted on the sley for reciprocal movement relative thereto and lance band driving gears coupling the sector gear with the lance band to impart driving motion to the lance band upon pivotal movement of the sector unit. A connecting rod is attached between the sector unit and an eccentric crank in order to drive the sector unit. One end of the connecting rod is eccentrically mounted upon the crank and the eccentric mounting thereof is adjustable. The sector unit is mounted upon a support member which is, in turn, pivotally mounted for reciprocal motion with the sley and which includes thereon the lance band driving gears. The sector unit is mounted upon the support member for pivotal movement relative thereto about an axis other than the axis of rotation of the support member and the support member is mounted by an eccentric pivotal attachment which permits adjustable positioning of the height thereof.</p> |
