Machine tool and drive regulation device for said machine tool
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 5, 2016
Grant Date -
May 15, 2014
app pub date -
Jul 10, 2012
filing date -
Jul 14, 2011
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A drive regulation device for a machine tool that stops driving of a motor when a door (18) provided for a cover (17) for covering a driven body driven by the motor becomes to be in an open state includes a detection unit (21) detecting an open/closed state of the door (18) provided for the cover (17) for covering the driven body driven by the motor, an excitation operation unit (22) switching the motor between an excitation state and a non-excitation state, a speed regulation unit (23) stopping the motor, when the motor that has been stopped is rotated faster than a predetermined allowable rotation speed, and a speed-regulation switch unit (24) controlling the speed regulation unit (23), in a case where the detection unit (21) detects that the door (18) is in the open state, such that the speed regulation unit (23) works when the motor is in the excitation state, and the speed regulation unit (23) does not work when the motor is in the non-excitation state.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2012 Application Filing Year
- B23Q Class
- 581 Applications Filed
- 430 Patents Issued To-Date
- 74.02 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 1 Citation Count
- B23Q Class
- 20.59 % this patent is cited more than
- 9 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jan 5, 2028 |
