| 摘要 |
Versatile card-edge or other types of connector receptacles comprise contacts with one or more bowed cantilevered primary contact arms (tines) 26 and one or more cantilevered parallel arms 28 for insulator mounting, both sets of arms extending in a common direction from a common body portion 24. The secondary contact arms (tails) of the contacts may extend from the bottom 44 (horizontally or vertically) or the sides of the contact 36. The mounting arms may have barbed or pointed retention surfaces 32 on either their inside or outside edges and the contacts may be installed into either the top or the bottom of an insulator housing 10. The bowed contact tines may have installation shoulders 34 extending over the top of the insulator housing to provide bearing surfaces for press-fit installation. The connectors may have a zero-insertion-force feature, whereby a spreading bar 78 may be inserted between the bowed tines 26 to pre-spread them for ease of male mating member insertion. The spreading bar 144 may have a long, gradual taper to provide superior mechanical advantage. Associated cam-follower members 142 may be interposed between the bar and the tines. Narrow versions of the contacts (for parallel-mounted connectors) can be effected by providing slitted 172 (rather than slotted) contact tines.
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