To prevent slip rotation from occurring in performing a depression operation, without increasing the weight of a pull-up operation load of an operation handle, and surely perform rotational locking at a neutral position.SOLUTION: A lifter device 10 comprises: a feeding part A for transmitting rotation of an input member N coupled to an operation handle to an output shaft; a lock part B for rotationally locking the output shaft to a support member S; and a friction generation part for applying frictional force to rotation of the output shaft. The friction generation part generates friction by pushing a clutch part 57a in a radial direction according to rotation of an inner lever 53 constituting the input member N, and pressing a leaf spring 57b against a rotary ring 57d rotating together with the output shaft. The inner lever 53 remains in a friction restriction state not pushing the clutch part 57a in the radial direction, even when the operation handle is rotated to the neutral position and a lifting side. However, when the operation handle is rotated from the neutral position to a lowering side, the inner lever pushes the clutch part 57a in the radial direction into a friction ON-state P2, so that the rotary ring 57d is pressed against a fixed ring 57e in order to generate frictional force.SELECTED DRAWING: Figure 39

    【課題】操作ハンドルの引上げ操作荷重を重くすることなく、押下げ操作時の滑り回転を防止し、かつ中立位置の時に確実に回転ロックすること。【解決手段】リフタ装置10は、操作ハンドルに結合された入力部材Nの回転を出力軸に伝達する送り部Aと、出力軸を支持部材Sに回転ロックするロック部Bと、出力軸の回転に摩擦力を掛ける摩擦発生部とを有する。摩擦発生部は、入力部材Nを成すインナレバー53の回転によりクラッチ部57aを径方向に押動して板バネ57bを出力軸と共に回転する回転リング57dに押し付けて摩擦を発生させる。インナレバー53は、操作ハンドルが中立位置及び上昇側に回されてもクラッチ部57aを径方向に押動せず摩擦抑制状態とするが、中立位置から下降側に回されることでクラッチ部57aを径方向に押動して摩擦オン状態P2とし、回転リング57dを固定リング57eに押し付けて摩擦力を発生させる。【選択図】図39


    Access

    Download


    Export, share and cite



    Title :

    LIFTER DEVICE


    Additional title:

    リフタ装置


    Contributors:

    Publication date :

    2020-09-10


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60N SEATS SPECIALLY ADAPTED FOR VEHICLES , Sitze besonders für Fahrzeuge ausgebildet / A47C Stühle , CHAIRS



    LIFTER DEVICE

    KAJINO YUSUKE / SUZUKI YASUAKI | European Patent Office | 2020

    Free access

    LIFTER DEVICE

    KAJINO YUSUKE / SUZUKI YASUAKI | European Patent Office | 2020

    Free access

    LIFTER DEVICE

    KAJINO YUSUKE / SUZUKI YASUAKI | European Patent Office | 2019

    Free access

    Lifter device

    SUZUKI YASUAKI | European Patent Office | 2023

    Free access

    LIFTER DEVICE

    KAJINO YUSUKE / SUZUKI YASUAKI | European Patent Office | 2021

    Free access