Browse Prior Art Database

Molded Keyboard Structure

IP.com Disclosure Number: IPCOM000079716D
Original Publication Date: 1973-Aug-01
Included in the Prior Art Database: 2005-Feb-26
Document File: 2 page(s) / 46K

Publishing Venue

IBM

Related People

Bixler, LC: AUTHOR

Abstract

The keyboard 18 of a key operated device 10 comprises a housing 11 with integral key pads 12. The key pads 12 and housing 11 are made of plastic and molded as a unitary integrated structure. As seen in Fig. 2, the pads 12 are formed in a cup-like shape with the cylindrical wall portion 13 integrally connected with the cylindrical well portion 14 of the housing 11 which surrounds each pad. The pad wall 13 and well portion 4 are tapered to merge into a continuous thin flexible connection 15, which allows pad 12 to be depressed without deformation of the pad 12 or bending of the housing 11, so that protrusion 16 from pad 12 activates a switch element 17.

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

Molded Keyboard Structure

The keyboard 18 of a key operated device 10 comprises a housing 11 with integral key pads 12. The key pads 12 and housing 11 are made of plastic and molded as a unitary integrated structure. As seen in Fig. 2, the pads 12 are formed in a cup-like shape with the cylindrical wall portion 13 integrally connected with the cylindrical well portion 14 of the housing 11 which surrounds each pad. The pad wall 13 and well portion 4 are tapered to merge into a continuous thin flexible connection 15, which allows pad 12 to be depressed without deformation of the pad 12 or bending of the housing 11, so that protrusion 16 from pad 12 activates a switch element 17.

This keyboard structure has the advantage of being completely sealable, so that moisture and dust or other impurities cannot readily affect internal switch elements. Additionally, the keyboard structure is easily fabricated with mass production equipment and techniques.

1

Page 2 of 2

2

[This page contains 3 pictures or other non-text objects]