| 摘要 |
The previous linkages for transmitting signals across an axis (21) between a first member or cylinder (20) and a second member or frame (11) have been relatively difficult to adjust and have had a tendency to bind. Herein, a roller (44) is pivotally mounted to a first link structure (36) which is itself pivotally mounted relative to the cylinder (20). The roller (44) defines a generally circular cam surface (42). A second link structure (52) is mounted to the frame (11) and a generally U shaped member (98) has one of its legs (100) mounted to the second link structure (52) and the other leg (102) positioned to define a coacting surface (106) for action against the roller (44). An adjustment device (122) serves for adjusting the other leg (102) of the generally U-shaped member (98) tangentially and radially relative to the roller (44). Relatively straight forward and easily accessible adjustment is thereby provided. Also, binding problems are reduced.
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