Title:
CRANE LIGHTING DEVICE
Document Type and Number:
Japanese Patent JP2014201431
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a crane lighting device which enables safe night work.SOLUTION: A crane lighting device calculates an optical axis 12S of a camera 12 according to postures of a crane 1 and the camera 12. The crane lighting device calculates an optical axis 13S of a searchlight 13 according to postures of the crane 1 and the searchlight 13. Subsequently, the crane lighting device controls the inclination of the searchlight 13 so that the optical axis 13S of the searchlight 13 is arranged parallel with the optical axis 12S of the camera 12.
Inventors:
TANISUMI KAZUYA
ISHIKAWA IWAO
TSUDA KAZUAKI
MUNEKIYO MASAYUKI
ISHIKAWA IWAO
TSUDA KAZUAKI
MUNEKIYO MASAYUKI
Application Number:
JP2013081838A
Publication Date:
October 27, 2014
Filing Date:
April 10, 2013
Export Citation:
Assignee:
TADANO LTD
International Classes:
B66C15/00; B60Q1/24; B66C13/00
Domestic Patent References:
| JPH0815995B2 | 1996-02-21 | |||
| JPS54144650A | 1979-11-12 | |||
| JPH11132071A | 1999-05-18 | |||
| JP2000344461A | 2000-12-12 | |||
| JPH09142773A | 1997-06-03 | |||
| JP2011207571A | 2011-10-20 |
Attorney, Agent or Firm:
Tamio Nishiwaki
Nishiwaki History of 怜
Nishiwaki History of 怜
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