| 摘要 |
<p>A clamp mechanism (19) for clamping the edge (17) of a printed cirtuit board (11) between the side walls (91a, 91b) of a slot in a wall (93) of an enclosure for housing the board in parallel spaced relationship with other boards. The mechanism (19) comprises an elongated element (21) of resilient material having corrugations (23) whose crests are at regularly spaced positions along its length. An actuation means (25) coupled with the elongated element for relative longitudinal motion therewith is provided with riser elements (31b) spaced like the corrugations and positioned so as to move on such relative motion into engagement with the crests to effect the required clamping action. The riser elements (31b) are in the form of rollers (31b) to minimise frinctional resistance to operation. A further feature of the arrangement is a spigot arrangement (89, 95) on a lever 75 for operating the mechanism which provides positive locking of the board (11) when clamped.</p> |
