Title:
ORIGINAL POSITION DETECTING DEVICE FOR SUNLIGHT LIGHTING DEVICE
Document Type and Number:
Japanese Patent JP3619561
Kind Code:
B2
Abstract:
PURPOSE: To always accurately detect the original position of a lightening prism by providing a micro switch as a detecting means for detecting the original position of a lightening prism, arranging a prism or a prism detecting roller, and providing a prism or a ring position following lever.
CONSTITUTION: A rotary ring 7 is integrally tuned with a lightening prism 1 by a rotary driving device 9. An original point roller 15 is fitted to the rotary ring 7 for integration, and on the other hand, a contact 14s of a micro switch 14, which is to be operated by a roller 15 when the rotary ring 7, namely the prism 1, achieves the original point, is arranged at the predetermined position with a switch main body. In this case, a ring position detecting roller 11 is always pushed to the ring 7 so as to be turned together by a spring 13 through a ring position following lever 10, and even in the case where the rotation locus of the ring 7 is displaced from the center of the initial rotation, the lever 10 is rotated on the basis of the real rotation locus of the ring 7 so that the contact 14s of the switch 14 is not displaced from the operating position of the roller 15. Consequently, the original roller 15 operates the contact 14s of the switch 14 so as to accurately detect the original position.
Inventors:
Fujimoto
Kiyoto Kobayashi
Kiyoto Kobayashi
Application Number:
JP5379395A
Publication Date:
February 09, 2005
Filing Date:
February 20, 1995
Export Citation:
Assignee:
Sanyo Electric Co., Ltd.
International Classes:
G02B7/182; F21S11/00; (IPC1-7): F21S11/00; G02B7/182
Domestic Patent References:
| JP777664A | ||||
| JP6313835A | ||||
| JP667079A | ||||
| JP61180217A |
Attorney, Agent or Firm:
Haruya Saito
Fujimoto Iso
Fujimoto Iso