JPS5724876A - Gear device for watch - Google Patents

Gear device for watch

Info

Publication number
JPS5724876A
JPS5724876A JP10012680A JP10012680A JPS5724876A JP S5724876 A JPS5724876 A JP S5724876A JP 10012680 A JP10012680 A JP 10012680A JP 10012680 A JP10012680 A JP 10012680A JP S5724876 A JPS5724876 A JP S5724876A
Authority
JP
Japan
Prior art keywords
shaft
burr
shaft hole
burrs
molded
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
JP10012680A
Other languages
Japanese (ja)
Other versions
JPS6148869B2 (en
Inventor
Akio Matsumoto
Koichi Inasumi
Kazuhiro Araki
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP10012680A priority Critical patent/JPS5724876A/en
Publication of JPS5724876A publication Critical patent/JPS5724876A/en
Publication of JPS6148869B2 publication Critical patent/JPS6148869B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B31/00—Bearings; Point suspensions or counter-point suspensions; Pivot bearings; Single parts therefor
    • G04B31/004—Bearings; Point suspensions or counter-point suspensions; Pivot bearings; Single parts therefor characterised by the material used
    • G04B31/016—Plastic bearings

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Gears, Cams (AREA)

Abstract

PURPOSE:To eliminate troubles due to burrs by containing the burrs into a space formed by the end of a shaft and the outer circumference of the bottom of a shaft hole. CONSTITUTION:A semispherical shell-shaped convex section 3 is provided in the center of the end of a shaft 2 of a gear 1 molded with a resin such as nylon. A burr 4 is produced projecting on the mating surface with the die. On the other hand, a shaft hole 5a is formed in a box body 5 molded with a resin in such a manner as to be sunk like a cone in the periphery thereof. This allows the burr to develop on the end of the shaft at a somewhat inner position as illustrated so as to avoid interference with the bottom of the shaft hole 5a and the surrounding area thereof thereby preventing possible troubles by the burr 4.
JP10012680A 1980-07-21 1980-07-21 Gear device for watch Granted JPS5724876A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10012680A JPS5724876A (en) 1980-07-21 1980-07-21 Gear device for watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10012680A JPS5724876A (en) 1980-07-21 1980-07-21 Gear device for watch

Publications (2)

Publication Number Publication Date
JPS5724876A true JPS5724876A (en) 1982-02-09
JPS6148869B2 JPS6148869B2 (en) 1986-10-27

Family

ID=14265625

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10012680A Granted JPS5724876A (en) 1980-07-21 1980-07-21 Gear device for watch

Country Status (1)

Country Link
JP (1) JPS5724876A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60191983U (en) * 1984-05-30 1985-12-19 ナイルス部品株式会社 clock train mechanism
JPS6327788A (en) * 1986-07-22 1988-02-05 Shichizun Denshi:Kk Preparation of winding stem for wristwatch
JPS63132381U (en) * 1987-12-21 1988-08-30
JPH1054886A (en) * 1997-06-18 1998-02-24 Seiko Epson Corp Train wheel guiding structure for watch
WO2012035926A1 (en) * 2010-09-15 2012-03-22 日本精機株式会社 Instrument driving device

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60191983U (en) * 1984-05-30 1985-12-19 ナイルス部品株式会社 clock train mechanism
JPS6327788A (en) * 1986-07-22 1988-02-05 Shichizun Denshi:Kk Preparation of winding stem for wristwatch
JPS63132381U (en) * 1987-12-21 1988-08-30
JPH0650792Y2 (en) * 1987-12-21 1994-12-21 セイコーエプソン株式会社 Wheel train guide structure
JPH1054886A (en) * 1997-06-18 1998-02-24 Seiko Epson Corp Train wheel guiding structure for watch
WO2012035926A1 (en) * 2010-09-15 2012-03-22 日本精機株式会社 Instrument driving device
JP2012063185A (en) * 2010-09-15 2012-03-29 Nippon Seiki Co Ltd Driving device for instrument
CN103109162A (en) * 2010-09-15 2013-05-15 日本精机株式会社 Instrument driving device
US9074913B2 (en) 2010-09-15 2015-07-07 Nippon Seiki Co., Ltd. Instrument driving device

Also Published As

Publication number Publication date
JPS6148869B2 (en) 1986-10-27

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