To provide a press working method that can efficiently manufacture ratchets constituting a reclining mechanism, with a little mechanical load.SOLUTION: A press working method, which manufactures, by press working, ratchets (100) constituting a reclining mechanism for a vehicular seat, performs, at different timings for one-time press operation, a first step for forming at least a portion of a first ratchet, a second step for completing the first ratchet, a third step for forming at least a portion of a second ratchet and a fourth step for completing the second ratchet.SELECTED DRAWING: Figure 6

    【課題】リクライニング機構のラチェットを、少ない機械的負荷で効率良く製造することが可能なプレス加工方法を提供する。【解決手段】車両シート用のリクライニング機構を構成するラチェット(100)を、プレス加工により製造するプレス加工方法において、第1のラチェットの少なくとも一部を形成する第1工程と、第1のラチェットを完成させる第2工程と、第2のラチェットの少なくとも一部を形成する第3工程と、第2のラチェットを完成させる第4工程と、を1回のプレス動作の異なるタイミングで行う。【選択図】図6


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    Title :

    PRESS WORKING METHOD


    Additional title:

    プレス加工方法


    Contributors:

    Publication date :

    2024-04-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B21D WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL , Bearbeiten oder Verarbeiten von Blechen, Metallrohren, -stangen oder -profilen ohne wesentliches Abtragen des Werkstoffs / B30B PRESSES IN GENERAL , Pressen allgemein / B60N SEATS SPECIALLY ADAPTED FOR VEHICLES , Sitze besonders für Fahrzeuge ausgebildet / A47C Stühle , CHAIRS



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