JPS56155887A - Speed indicator for swimming available to self-measurement - Google Patents

Speed indicator for swimming available to self-measurement

Info

Publication number
JPS56155887A
JPS56155887A JP5891180A JP5891180A JPS56155887A JP S56155887 A JPS56155887 A JP S56155887A JP 5891180 A JP5891180 A JP 5891180A JP 5891180 A JP5891180 A JP 5891180A JP S56155887 A JPS56155887 A JP S56155887A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
switch
board
timepiece
swimmer
start
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
JP5891180A
Inventor
Hiroyoshi Kojima
Original Assignee
Hiroyoshi Kojima
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

Links

Classifications

    • GPHYSICS
    • G04HOROLOGY
    • G04FTIME-INTERVAL MEASURING
    • G04F10/00Apparatus for measuring unknown time intervals by electric means
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07CTIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C1/00Registering, indicating or recording the time of events or elapsed time, e.g. time-recorders for work people
    • G07C1/22Registering, indicating or recording the time of events or elapsed time, e.g. time-recorders for work people in connection with sports or games

Abstract

PURPOSE:To measure a swimming speed easily, rapidly and securely by a swimmer himself or herself, by using a start switch board incorporated power source switch and radio transmitter plus a time board consisting of a digital timepiece and relational members. CONSTITUTION:Switch board 2 incorporated radio transmitter 6 and ready switch is provided on start base 1 and once a swimmer starts, electric power is supplied to the switch board 2. On the other hand, time board 4 provided on the surface, etc., of the counter wall to start base 1 consists of switch 9, a radio receiver, large- sized digital timepiece 7, plural small-sized digital timepieces 8..., etc., and waterproofed completely. Every time the swimmer touches switch 9, the display of timepiece 7 is shifted to timepieces 8 one after another and timepiece 7 is reset, so that the swimmer can measure his or her speed rapidly, securely and easily alone without the help of another person.
JP5891180A 1980-05-02 1980-05-02 Speed indicator for swimming available to self-measurement Pending JPS56155887A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5891180A JPS56155887A (en) 1980-05-02 1980-05-02 Speed indicator for swimming available to self-measurement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5891180A JPS56155887A (en) 1980-05-02 1980-05-02 Speed indicator for swimming available to self-measurement

Publications (1)

Publication Number Publication Date
JPS56155887A true true JPS56155887A (en) 1981-12-02

Family

ID=13097991

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5891180A Pending JPS56155887A (en) 1980-05-02 1980-05-02 Speed indicator for swimming available to self-measurement

Country Status (1)

Country Link
JP (1) JPS56155887A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2615971A1 (en) * 1987-06-01 1988-12-02 Brainos Philippe Infrared chronometer for swimming pools
US7821876B2 (en) * 2006-02-27 2010-10-26 Frantz Frederick E Synchronization of a plurality of devices in a wireless sensor arrangement

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2615971A1 (en) * 1987-06-01 1988-12-02 Brainos Philippe Infrared chronometer for swimming pools
US7821876B2 (en) * 2006-02-27 2010-10-26 Frantz Frederick E Synchronization of a plurality of devices in a wireless sensor arrangement
US8085623B2 (en) 2006-02-27 2011-12-27 Frederick E Frantz Synchronization of a plurality of devices in a wireless sensor arrangement

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