Title:
PULSE GENERATOR AND PULSE GENERATOR FOR CAMERA
Document Type and Number:
Japanese Patent JP3174487
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a pulse generator capable of simplifying a pattern on a code disk and attaining more miniaturization by establishing positional relations for bringing one of a pair of contact terminals into contact with a grounding land part, when the other contact terminal comes into contact with a pulse generating land part at the rotation of a pair of the contact terminals.
SOLUTION: When a film is moved to the right during winding, a sprocket 21 whose engaging teeth 21c are engaged with perforations P is rotated counterclockwise. Thus, a pulse generating gear 23 is rotated clockwise by the rotation of a transmission gear 22, so that a brush is rotated in the same direction together with the pulse generating gear 23. When a pair of the contact terminals 25a and 25b are half rotated counterclockwise, at the time of rotating the brush, the contact terminal 25a comes into successive contact with three places in plural pulse generating land parts, in a state that the contact terminal 25b is in contact with the grounding land on the code disk 26. Therefore, the brush can output a three-pulse signal.
Inventors:
Tetsuo Hosokawa
Application Number:
JP23306295A
Publication Date:
June 11, 2001
Filing Date:
September 11, 1995
Export Citation:
Assignee:
Asahi Optical Co., Ltd.
International Classes:
G01D5/165; G01D5/245; G03B17/00; G03B17/18; G03B17/42; (IPC1-7): G03B17/00; G01D5/245; G03B17/18
Domestic Patent References:
| JP617061U |
Attorney, Agent or Firm:
Kunio Miura
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