METHODS FOR MANUFACTURING A SPRING, A SPRING BRAKE, AND A SPRING BRAKE COMPRISING A SPRING

World Intellectual Property Organization Patent

APP PUB NO WO-2017178654-A1
SERIAL NO

PCTEP2017059072

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Abstract

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The invention concerns a method for manufacturing a spring (1) for a spring brake (14), comprising a shaping and cutting step f) comprising the following sub-steps: - f1) shaping a raw wire into a coil with a plurality of raw turns, the raw wire having: raw portions that extend from the end of the raw wire over at least one raw turn, and an intermediate portion between the raw portions, - f2) separating the first raw portion and the second raw portion of the raw wire by cutting, after implementing sub-step f1), and - f3) shaping a first tab (5), at a first end of the intermediate portion, after sub-step f1), and - f4) shaping a second tab (7), at a second end of the intermediate portion opposite the first end, after sub-step f1).

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Patent Owner(s)

Patent OwnerAddress
SOMFY SASFR50 AVENUE DU NOUVEAU MONDE CLUSES 74300

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Inventor(s)

Inventor Name Address
LAGARDE ERIC CLUSES

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