| 摘要 |
The second fold roller mechanism of the folder includes adjustable stop members associated with the fold roller support levers for regulating and maintaining a predetermined space between the rollers in their operative position. Spring members are provided to bias the support levers against the stop members and these spring members are mounted on the stop members so that when space adjustments of the rollers are effected, the stop members, the support levers and the spring members move in unison as an integral unit and the preset tension of the spring members remains constant throughout all positions of adjustment. In the preferred embodiment, a spacer block is connected to the support lever and interposed between the stop member and the spring member. The spacer block is connected to the support lever through resilient means which, in effect, absorb the normal oscillations of the support lever, so that the spacer block remains in constant contact with the stop member and the noise level and shocks imparted to the mechanism are substantially reduced. |
