JPS5683569A - Turning angle detecting apparatus - Google Patents

Turning angle detecting apparatus

Info

Publication number
JPS5683569A
JPS5683569A JP16038379A JP16038379A JPS5683569A JP S5683569 A JPS5683569 A JP S5683569A JP 16038379 A JP16038379 A JP 16038379A JP 16038379 A JP16038379 A JP 16038379A JP S5683569 A JPS5683569 A JP S5683569A
Authority
JP
Japan
Prior art keywords
boss
cover
housing
turning angle
central
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP16038379A
Other languages
Japanese (ja)
Other versions
JPS6217677B2 (en
Inventor
Kazuhiko Kawakami
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP16038379A priority Critical patent/JPS5683569A/en
Publication of JPS5683569A publication Critical patent/JPS5683569A/en
Publication of JPS6217677B2 publication Critical patent/JPS6217677B2/ja
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P7/00—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices
    • F02P7/06—Arrangements of distributors, circuit-makers or -breakers, e.g. of distributor and circuit-breaker combinations or pick-up devices of circuit-makers or -breakers, or pick-up devices adapted to sense particular points of the timing cycle
    • F02P7/073—Optical pick-up devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Optical Transform (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)

Abstract

PURPOSE:To prevent sticking of powdery substance caused by wear to a photoelectric pickup means and to thereby enhance reliability of a turning angle detecting apparatus, by employing a cover having an erected portion to be fitted into the surface of a boss of a distributor rotor. CONSTITUTION:An annular groove 32 is formed in the end face of a boss 30 which is formed integrally with a distributor rotor 26. Between the boss 30 and a housing 12, there are provided a conical cover 36 formed with a hole at its central portion and having an erected portion 34 surrounding the peripheral portion of the central hole. This erected portion 34 is fitted into the groove 32 formed in the boss 30, and the outer peripheral portion of the cover 36 is fixed by housing 12. Inside the space defined by the cover 36 and housing 12, there is provided a photoelectric pickup 60 consisting of a light emitting element 56 and a light receiving element 58. With such an arrangement, it is enabled to prevent malfunctioning of the apparatus due to sticking of powdery substance produced by the sliding contact between a central contact piece 18 and a rotor electrode 28 to the photoelectric pickup.
JP16038379A 1979-12-12 1979-12-12 Turning angle detecting apparatus Granted JPS5683569A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16038379A JPS5683569A (en) 1979-12-12 1979-12-12 Turning angle detecting apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16038379A JPS5683569A (en) 1979-12-12 1979-12-12 Turning angle detecting apparatus

Publications (2)

Publication Number Publication Date
JPS5683569A true JPS5683569A (en) 1981-07-08
JPS6217677B2 JPS6217677B2 (en) 1987-04-18

Family

ID=15713770

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16038379A Granted JPS5683569A (en) 1979-12-12 1979-12-12 Turning angle detecting apparatus

Country Status (1)

Country Link
JP (1) JPS5683569A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61184916U (en) * 1985-05-09 1986-11-18
JPH0559238U (en) * 1992-01-21 1993-08-06 株式会社ニコン Rotary encoder
JP2007145086A (en) * 2005-11-24 2007-06-14 Howa Kasei Co Ltd Interior material with skin

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61184916U (en) * 1985-05-09 1986-11-18
JPH0559238U (en) * 1992-01-21 1993-08-06 株式会社ニコン Rotary encoder
JP2007145086A (en) * 2005-11-24 2007-06-14 Howa Kasei Co Ltd Interior material with skin

Also Published As

Publication number Publication date
JPS6217677B2 (en) 1987-04-18

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