JPS55166460A - Molded commutator - Google Patents

Molded commutator

Info

Publication number
JPS55166460A
JPS55166460A JP7234379A JP7234379A JPS55166460A JP S55166460 A JPS55166460 A JP S55166460A JP 7234379 A JP7234379 A JP 7234379A JP 7234379 A JP7234379 A JP 7234379A JP S55166460 A JPS55166460 A JP S55166460A
Authority
JP
Japan
Prior art keywords
molded member
sleeve
face
flange
guide groove
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.)
Pending
Application number
JP7234379A
Other languages
Japanese (ja)
Inventor
Shigeki Saito
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 JP7234379A priority Critical patent/JPS55166460A/en
Publication of JPS55166460A publication Critical patent/JPS55166460A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R39/00—Rotary current collectors, distributors or interrupters
    • H01R39/02—Details for dynamo electric machines
    • H01R39/04—Commutators

Landscapes

  • Motor Or Generator Current Collectors (AREA)

Abstract

PURPOSE:To prevent a molded member from cracking and facilitate balancing, by setting the length of a shaft sleeve smaller than that of the molded member and by providing a guide groove on one end face of the sleeve to make balancing holes. CONSTITUTION:A sleeve 1, which is tightly fitted on a rotary shaft, is integrated with a commutator bar 2 by a molded member 3. The axial length of the sleeve 1 is set smaller than that of the molded member 3. A flange 1 is provided on one end of the sleeve 1 and exposed at the molded member. A guide groove 12 is provided on the peripheral surface of the flange 11 to make balancing holes. The inside diameter D1 of the part of the hole 31 of the molded member 3, which is in contact with the other end face of the sleeve 1, is set small but the inside diameter of the hole 31 is increased as D2 away from the end face. As a result, the molded member 3 does not crack when a rotary shaft is tightly fitted.
JP7234379A 1979-06-11 1979-06-11 Molded commutator Pending JPS55166460A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7234379A JPS55166460A (en) 1979-06-11 1979-06-11 Molded commutator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7234379A JPS55166460A (en) 1979-06-11 1979-06-11 Molded commutator

Publications (1)

Publication Number Publication Date
JPS55166460A true JPS55166460A (en) 1980-12-25

Family

ID=13486551

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7234379A Pending JPS55166460A (en) 1979-06-11 1979-06-11 Molded commutator

Country Status (1)

Country Link
JP (1) JPS55166460A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2366890A1 (en) * 2010-03-19 2011-09-21 Robert Bosch GmbH Balanced electric machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2366890A1 (en) * 2010-03-19 2011-09-21 Robert Bosch GmbH Balanced electric machine

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