| 主权项 |
1. A connecting adjustment assembly comprising:
a back plate assembly including,
a body having a first side and an opposed second side, the body further having a first edge and an opposed second edge that defines the length of the body, the body also having a third edge and an opposed fourth edge defining a width of the body, the body still further having a groove in the second side that passes along the width of the body,a roller rotationally coupled proximate the second edge of the body; and sliding engagement member including,
a first post configured and arranged to be at least partially received within the groove of the body,a second post,a first side plate,a second side plate, the first post and the second post extending between the first plate and the second plate in a spaced fashion such that the passage is formed by the first post, the second post, the first side plate and the second side plate, anda connecting head extending from the second post. |
