FR2348515A1 - Digital clock time display - with pinions on same centreline engaging one minute, ten minutes, and hour wheel gears - Google Patents

Digital clock time display - with pinions on same centreline engaging one minute, ten minutes, and hour wheel gears

Info

Publication number
FR2348515A1
FR2348515A1 FR7610689A FR7610689A FR2348515A1 FR 2348515 A1 FR2348515 A1 FR 2348515A1 FR 7610689 A FR7610689 A FR 7610689A FR 7610689 A FR7610689 A FR 7610689A FR 2348515 A1 FR2348515 A1 FR 2348515A1
Authority
FR
France
Prior art keywords
drum
minute
time display
pinion
minutes
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
FR7610689A
Other languages
French (fr)
Other versions
FR2348515B1 (en
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 FR7610689A priority Critical patent/FR2348515A1/en
Publication of FR2348515A1 publication Critical patent/FR2348515A1/en
Application granted granted Critical
Publication of FR2348515B1 publication Critical patent/FR2348515B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C17/00—Indicating the time optically by electric means
    • G04C17/0075—Indicating the time optically by electric means by drums or drum-like devices
    • 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
    • G04B19/00—Indicating the time by visual means
    • G04B19/20—Indicating by numbered bands, drums, discs, or sheets
    • G04B19/21—Drums

Abstract

The time display of a digital clock uses less components for the stepper mechanism so that a less expensive design is combined with smaller overall dimensions. This mechanism has a drive pinion (18) which is integral with a shaft on which a second drive pinion (20) can rotate freely. The first pinion (18) mates with a toothed rim on the periphery of the one-minute drum (16) and with a toothed rim on the periphery of the ten minutes drum (19). The second pinion (20) mates both with another toothed rim on the drum (19) and with a toothed rim on the hour drum (21). The five time display cards on the drum (16) are turned over by a C-shaped recess in the housing. The gear ratio for the pinion (18) is so arranged that the ten minute drum (19) is turned by one-sixth of a full turn every two revolutions of the drum (16).
FR7610689A 1976-04-12 1976-04-12 Digital clock time display - with pinions on same centreline engaging one minute, ten minutes, and hour wheel gears Granted FR2348515A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7610689A FR2348515A1 (en) 1976-04-12 1976-04-12 Digital clock time display - with pinions on same centreline engaging one minute, ten minutes, and hour wheel gears

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7610689A FR2348515A1 (en) 1976-04-12 1976-04-12 Digital clock time display - with pinions on same centreline engaging one minute, ten minutes, and hour wheel gears

Publications (2)

Publication Number Publication Date
FR2348515A1 true FR2348515A1 (en) 1977-11-10
FR2348515B1 FR2348515B1 (en) 1981-10-09

Family

ID=9171707

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7610689A Granted FR2348515A1 (en) 1976-04-12 1976-04-12 Digital clock time display - with pinions on same centreline engaging one minute, ten minutes, and hour wheel gears

Country Status (1)

Country Link
FR (1) FR2348515A1 (en)

Also Published As

Publication number Publication date
FR2348515B1 (en) 1981-10-09

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Legal Events

Date Code Title Description
ST Notification of lapse