| 摘要 |
<p>In an embodiment, a holder mechanism is provided. The holder mechanism has an upper and a lower sliding plate, an upper and a lower lever guide arm, and an upper and a lower spring. The sliding plates have an adjustment lever plate rod slot and one or more fingers. The lever guide arms have a hinge end and a spring end and are hinged to their respective sliding plates at a hinge end. Each spring pulls the spring end of its respective lever guide arm and its respective sliding plate together. An adjustment lever between the sliding plates has an upper and a lower guide rod. Each guide rod is between the respective sliding plate and the respective lever guide arm. An adjustment lever plate rod passes through adjustment lever plate rod slots in the upper and lower sliding plates, and is connected to the adjustment lever.</p> |
