Method and apparatus for fastener tensioning

Details Method and apparatus for fastener tensioning Method and apparatus for fastener tensioning

1977-01-27

1978-08-08

Ruehl, Charles A.

Metal working

Method of mechanical manufacture

With testing or indicating

73 88F, 173 12, B23Q 500

Patent

active

041047788

ABSTRACT:
A fastener tensioning method and apparatus for obtaining a desired degree of tension in a fastener. The apparatus includes a means for applying rotation to a fastener, a means for measuring the torque applied by the means for rotating the fastener, a means for determining a rate of change of torque applied to the fastener with respect to the rotation applied to the fastener, a means for detecting when the rate of change of torque with respect to rotation becomes a constant, a means for accomplishing a desired amount of rotation of the fastener beyond the rotation required to achieve the constant rate of change of torque with respect to rotation, and a means for shutting off the means for applying rotation to the fastener in response to the total desired rotation being achieved. The embodiment herein described improves the well-known "turn of the nut" method for fastener tensioning by providing that method with a well determined starting point.

REFERENCES:
patent: 2756622 (1956-07-01), La Belle
patent: 4013895 (1977-03-01), Akiyoshi et al.

Affiliated with

Also associated with

Rating

Method and apparatus for fastener tensioning does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for fastener tensioning, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for fastener tensioning will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-911313