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Browse Prior Art Database

Friction Hinge/Tilt Mechanism

IP.com Disclosure Number: IPCOM000113436D
Original Publication Date: 1994-Aug-01
Included in the Prior Art Database: 2005-Mar-27
Document File: 2 page(s) / 26K

Publishing Venue

IBM

Related People

King, ML: AUTHOR [+2]

Abstract

Disclosed is a friction hinge/tilt mechanism for portable computers and other devices with tilting displays.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 100% of the total text.

Friction Hinge/Tilt Mechanism

      Disclosed is a friction hinge/tilt mechanism for portable
computers and other devices with tilting displays.

      The hinge is comprised of an outer tubular part (1), with
springs (2) formed by slitting the tube axially and forming the
spring elements to provide a predetermined deflection when the inner
shaft (3) is pressed into the spring tube; one of the pieces is
rigidly fixed.  Frictional resisting torque is produced between the
movable and stationary shafts depending upon the spring force and
coefficient of friction between the springs (2) and inner shaft (3).
Various retaining and mounting features (4) and (5) may be integrated
in the parts.  The amount of resisting torque is controlled by the
spring geometry, base material and plating properties (material type,
tensile strength, modulus) and diameter of the parts.