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1. (WO2017154682) DEVICE, METHOD, AND PROGRAM FOR MEASURING SHAPE OF SPIRAL SPRING

Pub. No.:    WO/2017/154682    International Application No.:    PCT/JP2017/007967
Publication Date: Fri Sep 15 01:59:59 CEST 2017 International Filing Date: Wed Mar 01 00:59:59 CET 2017
IPC: G01B 11/24
G01B 21/20
Applicants: CHUO HATSUJO KABUSHIKI KAISHA
中央発條株式会社
Inventors: TAKEUCHI Hideyo
竹内 英世
Title: DEVICE, METHOD, AND PROGRAM FOR MEASURING SHAPE OF SPIRAL SPRING
Abstract:
Provided is a shape measurement device 10 that measures the shape of a spiral spring 30 formed in a spiral shape. This shape measurement device 10 is provided with an input means and a function calculation means. The input means inputs a captured photographic image depicting the spiral spring 30 or measurement data produced by measuring the shape of the spiral spring. The function calculation means uses the input photographic image or the measurement data to calculate at least an inter-coil space function representing the space between neighboring coils of the spiral spring, a pitch function representing the distance between coil cores of neighboring coils of the spiral spring, or a coil thickness function representing the thickness of coils of the spiral spring.