Tape measure device & method of manufacturing

Details Tape measure device & method of manufacturing Tape measure device & method of manufacturing

G - Physics

01

B

G01B 3/10 (2006.01)

Patent

CA 2629677

A tape measure device has an elongated blade (20) with a central concave- convex segment (40) with at least one planar segment (42, 44) adjoining edgewise the central concave-convex segment to form a junction that extends substantially along the entire length of the elongated blade. During formation of the blade the junction is annealed to avoid formation of a flaw or incipient fracture along the junction.

L'invention concerne un dispositif de mètre-mesure avec une lame allongée (20) et un segment central concave-convexe (40) ayant au moins un segment plan (42, 44) adjacent par les bords au segment concave-convexe pour former une jonction qui s'étend sensiblement le long de toute la longueur de la lame allongée. Au cours de la formation de la lame, la jonction est recuite afin d'éviter la formation d'un défaut ou d'une amorce de fissure le long de la jonction.

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