Method of making reduced backlash joint

Patent metadata

Field	Value
Publication number	US-9357983-B2
Application number	US-201113702525-A
Country	US
Kind code	B2
Filing date	Jun 7, 2011
Priority date	Jun 11, 2010
Publication date	Jun 7, 2016
Grant date	Jun 7, 2016

Abstract

A joint and a corresponding method of creating a precision-fit joint, including creating a mating surface on a first joint component so that the mating surface includes one or more interfering features, connecting a second joint component with the mating surface such that the interfering feature is compressed, and heating the mating surface above a glass transition temperature or melting temperature of the mating surface, or otherwise treating the surface, so as to induce flow of material from the interfering feature to a area of relatively low pressure between the first joint component and the second joint component.

First claim

The invention claimed is:

1. A method of creating a precision-fit joint, comprising:
creating a mating surface on a first joint component so that the mating surface includes one or more interfering features;
connecting a second joint component with the mating surface such that the one or more interfering features are compressed, wherein the first joint component is a link for a chain comprising a plurality of links and the second joint component is a pin that connects the first joint component with another link in the chain;
treating the mating surface so as to induce flow of material from the one or more interfering features to an area between the first joint component and the second joint component; and
applying a stabilization mechanism that dampens vibrations between the first and second joint components, wherein the stabilizing mechanism stabilizes operation of a hydraulically controlled surgical device.

2. The method of claim 1 , wherein treating the mating surface includes heating the mating surface above a glass transition temperature or melting temperature of the mating surface.

3. The method of claim 1 , wherein treating the mating surface includes chemically modifying the mating surface.

4. The method of claim 1 wherein creating the interfering feature further comprises:
defining a pattern that allows ventilation during the flow of the material to prevent formation of a bubble.

5. The method of claim 4 wherein the pattern comprises a screw thread pattern.

6. The method of claim 1 , further comprising:
forming the interfering feature from a polymeric material.

7. The method of claim 1 , further comprising:
applying external pressure to the first joint component.

Assignees

• Doyle Mark
• Carefusion 2200 Inc

Inventors

• Doyle Mark

Classifications

• Y10T29/49936

  Surface interlocking · CPC title

• A61B2017/2947

  Pivots · CPC title

• F16G13/10

  with universal joints · CPC title

• A61B34/37

  Leader-follower robots (A61B34/35 takes precedence) · CPC title

• B23P11/00

  Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for  (connecting sheet metal or metal tubes, rods or profiles B21D39/00; riveting B21J; soldering, unsoldering, welding B23K; hand tools for connecting wire or strip B25B25/00; connecting metal parts by adhesives F16B11/00) · CPC title