Force measuring device for a bicycle

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(11)

EP 2 546 626 A8

(12)	CORRECTED EUROPEAN PATENT APPLICATION
	Note: Bibliography reflects the latest situation

(15)	Correction information:
	Corrected version no 1 (W1 A1)

(48)	Corrigendum issued on:
	03.04.2013 Bulletin 2013/14

(88)	Date of publication A3:
	16.01.2013 Bulletin 2013/03

(43)	Date of publication:
	16.01.2013 Bulletin 2013/03

(21)	Application number: 12176396.5

(22)	Date of filing: 13.07.2012

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International Patent Classification (IPC):

G01L 3/10^(2006.01)

(84)	Designated Contracting States:
	AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
	Designated Extension States:
	BA ME

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Priority:

13.07.2011 TW 100212838

(71)	Applicant: Xu, Hong-Jun
	Wuxi City, Jiangsu 214000 (CN)

(72)	Inventor:
	HSU, Ching-Feng Taipei City 11045 (TW)

(74)	Representative: Bohnenberger, Johannes et al
	Meissner, Bolte & Partner GbR Postfach 86 06 24 81633 München 81633 München (DE)

(54)	Force measuring device for a bicycle

(57) A force measuring device (100) for a bicycle (4) includes a sleeve shell (2) having a first shell-half outer wall (21a) and an inner tubular wall (22) which are disposed between a bottom bracket shell (46) and a spindle (42), a ring body (32) disposed on the inner tubular wall (22) and having a strain region (323) which is configured to make a strain displacement corresponding to a treading force (F1) exerted on the spindle (42), a sensor holding unit (31) defining a sensor activating zone (313) and a hall sensing unit (33) including a sensor (331) which is disposed in the sensor activating zone (313), and a magnetic member (332) which is displaceable with the straining movement to change a magnetic field generated thereby so as to give off a signal indicative of the magnitude of the treading force (F1).