| 摘要 |
1,209,719. Mounting electrical equipment. APM Inc. 9 May, 1969 [31 May, 1968], No. 23884/69. Heading H1R. [Also in Division H2] Lead wires 7 or alternatively tape cables terminated in blocks 6 of edge connectors 55 insertable in apertures 5 of a frame 2, 3 are interconnected by a stack of circuit boards 11 which are vertically interconnected by combs 13. Combs 13 are secured by projections 16 which are bent to abut shoulders (17, Fig. 11, not shown) in grooves (12) in the inner wall of frame portion 3. Portion 3, which is insulative, is secured to portion 2 by spring fasteners 9 which embrace abutting lugs 8. Frame 2, 3 has grooves 10 in its end walls to support circuit boards 11, which are preferably printed circuit boards. The highest and lowest boards have apertures 49 adjacent each frame aperture 5 to receive latches 46 of blocks 6 hinged at 47 and joined together by a finger grip 50. Blocks 6, of moulded resilient insulative material, have internal cells each containing a resilient tongue 51 which secures an edge connector 55 crimped to a lead wire 7 and having a channel-shaped edge contact, each side wall of the channel being formed as a fork. A further block 4 may be secured by latches 39 over an aperture in the top of frame 2, 3. Block 4 houses fuses 22 and fuse contacts 20, 21 secured in grooves (18, Fig. 10, not shown) of portion 2, opposed fuse contacts being connected to adjacent combs 13 by doubled-over ends 36 inserted in the topmost teeth 19 of the combs, and pairs of adjacent fuse contacts 21 being integral with each other. |
