Browse Prior Art Database

Self-Leveling Mechanism for Display Terminals or Other Devices

IP.com Disclosure Number: IPCOM000041167D
Original Publication Date: 1987-Oct-01
Included in the Prior Art Database: 2005-Feb-02
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Miles, AW: AUTHOR [+3]

Abstract

This article describes a self-leveling mechanism which establishes four point contacts for a display terminal or other device on uneven surfaces without operator action. Referring to Fig. 1, a display terminal 10 (shown mostly in phantom) includes fixed front feet 12 and 14 and a self-leveling mechanism 16 including a rod 18 and a pair of cams 20 and 22 rigidly attached to the rod 18 at opposite ends. The rod 18 is journaled in spaced supports 24 and 26. The supports are rigidly attached to the remainder of the terminal. The cams 20 and 22 are identical but are mounted on rod 18 so that the major axis of one cam is at right angles to the major axis of the other.

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Self-Leveling Mechanism for Display Terminals or Other Devices

This article describes a self-leveling mechanism which establishes four point contacts for a display terminal or other device on uneven surfaces without operator action. Referring to Fig. 1, a display terminal 10 (shown mostly in phantom) includes fixed front feet 12 and 14 and a self-leveling mechanism 16 including a rod 18 and a pair of cams 20 and 22 rigidly attached to the rod 18 at opposite ends. The rod 18 is journaled in spaced supports 24 and 26. The supports are rigidly attached to the remainder of the terminal. The cams 20 and 22 are identical but are mounted on rod 18 so that the major axis of one cam is at right angles to the major axis of the other.

When installing the terminal 10 on a supporting surface, fixed feet 12 and 14 are allowed to contact the surface first. The back of the terminal is lowered toward the surface. Fig. 2 shows the self-leveling mechanism during the installation process. As the terminal (represented only by support 26) is lowered toward the surface 28, cam 22 contacts the surface and rotates about the axis of rod 18 in the direction indicated by arrow 30. Cam 20 is forced to rotate in the same direction or toward the surface 28. Regardless of whether surface 28 is uneven or not, cams 20 and 22 continue to move as a unit until both cams are resting on the surface. This is illustrated in Fig. 3.

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