Dismiss
InnovationQ will be updated on Sunday, Oct. 22, from 10am ET - noon. You may experience brief service interruptions during that time.
Browse Prior Art Database

Low Stress Connector

IP.com Disclosure Number: IPCOM000091619D
Original Publication Date: 1968-Apr-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 40K

Publishing Venue

IBM

Related People

Gustafson, RM: AUTHOR

Abstract

Contacts 10 and 12 are both open and closed by cams 14, 16, and 18 to reduce the stress that must be exerted on them in order to make proper electrical contact to printed circuit board 20. Contacts 10 and 12 are normally biased in some preset position by molding them into frame 22. Prior to the insertion of the board 20, contacts 10 and 12 must be opened by cam 16 exerting an upward force on the interior sides of contacts 10 and 12. This provides sufficient clearance between the contacts to allow a board 20 to go between them.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 100% of the total text.

Page 1 of 2

Low Stress Connector

Contacts 10 and 12 are both open and closed by cams 14, 16, and 18 to reduce the stress that must be exerted on them in order to make proper electrical contact to printed circuit board 20. Contacts 10 and 12 are normally biased in some preset position by molding them into frame 22. Prior to the insertion of the board 20, contacts 10 and 12 must be opened by cam 16 exerting an upward force on the interior sides of contacts 10 and 12. This provides sufficient clearance between the contacts to allow a board 20 to go between them.

Once board 20 is in position between contacts 10 and 12, cams 14 and 18 exert force on the outsides of such contacts 10 and 12 to clamp them to board 20 and thus increase the contact pressure to the desired level. By opening and closing contacts 10 and 12 in this manner, high contact pressures can be obtained without causing undue stress on contacts 10 and 12.

Cams 14, 16, and 18 are formed of a unitary member that is carried in actuating members 24 and 26 slidably set within frame 22. Force is exerted on members 24 and 26 by levers 28 and 30 which slide in grooves 32 and 34 to cause the up and down movement of cams 14, 16, and 18 when they are actuated. A latch is provided for preventing card 20 from being inserted or removed if contacts 10 and 12 are not completely open.

1

Page 2 of 2

2

[This page contains 1 picture or other non-text object]