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Double stage taumel gear reduction unit

  • US 4,884,844 A
  • Filed: 08/31/1988
  • Issued: 12/05/1989
  • Est. Priority Date: 09/01/1987
  • Status: Expired due to Term
First Claim
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1. A modular taumel reduction device comprising a housing having an exterior surface, interior surface and at least two ends, the housing having an opening extending from end to end along a first axis of extension through the opening of the housing, the housing having mounting means disposed proximate the exterior surface thereof, the interior surface of the housing having a multiplicity of detent means disposed thereupon, the housing having disposed at one end thereof driving means extending at least partially into the opening of the housing, the driving means having first engagement means extending therefrom proximate the housing for engagement with a first driven means, the first driven means being contained within the housing and having compatible detent means disposed about its perimeter for communication with the detent means disposed on the interior surface of the housing, the first driven means having fewer numbered compatible detent means than those disposed upon the interior surface of the housing or being smaller in diameter than said opening of said housing, the first driven means having second engagement means extending therefrom in a direction substantially parallel to the extension of the first engagement means, the second engagement means for engagement with a second driven means, the second driven means being contained within the housing having compatible detent means disposed about its perimeter for communication with the detent means disposed on the interior surface of the housing, the second driven means having fewer numbered compatible detent means than those disposed upon the interior surface of the housing or being smaller in diameter than said opening of said housing, the second driven means having third engagement means extending therefrom in a direction substantially parallel to the extension of the first and second engagement means, the third engagement means for engagement with at least a third driven means or a moveable frame or lever;

  • whereby when the driving means drives the first engagement means to engage the first driven means such engagement will result in the wobbling of the first driven means within the housing as the detent means of the first driven means intermittently engages the detent means upon the interior of the housing, such intermittent engagement being predetermined to effect a reduction in the speed of the first driven means with respect to the driving means, the first driven means thereby driving the second engagement means thereof to engage the second driven means, such engagement resulting in the wobbling of the second driven means within the housing as the detent means of the second driven means intermittently engages the detent means upon the interior of the housing, such intermittent engagement being predetermined to effect a reduction in the speed of the second driven means with respect to the first driven means, the second driven means thereby driving the third engagement means thereof to engage at least a third driven means, a moveable frame, or lever at a substantially reduced output speed to that of the speed of the driving means.

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