Multi-pitch screw, multi-pitch nut, feed screw device using the screw and nut, and method of producing the nut
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 24, 2007
Grant Date -
Jun 30, 2005
app pub date -
Oct 22, 2003
filing date -
Nov 29, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A flat portion 12a and a slope portion 12b are provided on a thread 12 of a multi-pitch screw 10 alternately. The flat portion and the slope portion are provided on the thread of a multi-pitch nut which fastens with this. Consequently, a screw and a nut capable of preventing loosening securely by step are achieved. This enables comfortable and quick feeding and when a torque from a driving source is interrupted, step-like self-lock is activated.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully