Browse Prior Art Database

Four Position Mechanical Decoder of Two Bit Mechanical Input

IP.com Disclosure Number: IPCOM000085066D
Original Publication Date: 1976-Feb-01
Included in the Prior Art Database: 2005-Mar-02
Document File: 2 page(s) / 40K

Publishing Venue

IBM

Related People

Aldrich, CS: AUTHOR

Abstract

In many implementations, it is desirable to control the translation of a slide member to one of as many as four positions. The illustrated pneumatic device provides the capability of controlling the slide member by the actuation of two pneumatic actuators in combination or individually.

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Four Position Mechanical Decoder of Two Bit Mechanical Input

In many implementations, it is desirable to control the translation of a slide member to one of as many as four positions. The illustrated pneumatic device provides the capability of controlling the slide member by the actuation of two pneumatic actuators in combination or individually.

Slide member 10 is illustrated with four separate stop surfaces. In order of their relative amounts of translation, these four separate surfaces are 12, 14, 16, and 18. The translation of slide 10 to one of its four positions, 12, 14, 16 or 18, is controlled by depending member 20 which is supported in actuator block 22. Depending member 20 is formed with two pivot or fulcrum points 24. Also extending generally perpendicular to the axis of depending member 20 are actuator tabs 26 and 28, for engagement with pneumatic or fluid actuators or electromagnets 30 and 32, respectively.

If slide 10 is to be stopped with the minimum amount of travel, surface or stop member 12 must engage depending member 20. This may be accomplished by not actuating either of the actuators 30 or 32, leaving depending member 12 in a substantially vertical position to engage stop surface 12. However, should the surface 14 be the desired surface to engage depending member 20, actuator 32 acting on arm 28 will rock depending member 20 about fulcrum point 24 on the left, thus presenting depending member 22 to stop surface 14. A similar type of operatio...