EP 0451424 A1 19911016 - Racquet stringing tension measuring device.
Title (en)
Racquet stringing tension measuring device.
Title (de)
Seitenspannungsmessgerät für einen Schläger.
Title (fr)
Appareil de mesure de la tension du cordage d'une raquette.
Publication
Application
Priority
- EP 90500039 A 19900411
- AU 5377490 A 19900420
- CA 2014494 A 19900412
Abstract (en)
A device to measure the tension of the stringing of rackets used for playing tennis, squash, etc., which entails an end area (2) to strike the said stringing and another adjacent area which includes a multiple diapason or tuning device (5). On striking the stringing, and depending on the tension of the strings, one of the diapasons vibrates, thus providing a signal which can later be measured or digitalized to provide a measurement of the tension of the stringing. <IMAGE>
IPC 1-7
IPC 8 full level
A63B 51/00 (2006.01)
CPC (source: EP)
A63B 51/005 (2013.01)
Citation (search report)
[A] WO 8903709 A1 19890505 - MATJASIC KLAUS [DE]
Designated contracting state (EPC)
AT BE CH DE DK FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0451424 A1 19911016; EP 0451424 B1 19950524; CA 2014494 A1 19911012; DE 69019732 D1 19950629; DE 69019732 T2 19960222
DOCDB simple family (application)
EP 90500039 A 19900411; CA 2014494 A 19900412; DE 69019732 T 19900411