| 摘要 |
The coupler (1) is insertable from front side (20) into the front plate (2). The coupler(s) is held in position by a lock spring (14) gripping behind the front plate, the coupler(s) is also releasable from the front side. The front plate has apertures (22) for the release of couplers from front side, in addition to plug-in openings (21). Typically the plug-in opening is of elongated shape for plugging-in and locking several couplers in a row, with at least one coupler having a screw connection instead of lock spring.
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