To provide a caster with a simple structure that can suppress a movement of a chair by becoming unrotatable when a person sits on it.SOLUTION: A caster 7 includes: a rotating shaft 22; an inner ring part 23 fitted thereto; and an outer ring part 24 fitted to the inner ring part 23 from an outside. The outer ring part 24 is made of elastomer material, for example, and consists of: an inner rim layer 27 and an outer rim layer 28 which each have a thin-wall-shape and high density; and a compression-deformable layer 29 with a three-dimensional lattice structure located between them. The compression-deformable layer 29 is configured to have elastic strength that allows it to collapse and deform significantly when a person sits on it. Thus, when the person is seated on a chair, the chair is restrained from moving, and a user can perform his/her duty or work in a stable manner. Since a ground contact area with a floor surface F is increased, the chair is less likely to be damaged even if the floor is wooden flooring.SELECTED DRAWING: Figure 3

    【課題】人が着座すると回転不能になって椅子の移動を抑制できるキャスタを、簡単な構造で提供する。【解決手段】キャスタ7は、回転軸22とこれに嵌着した内輪部23、及び、内輪部23に外側から嵌着した外輪部24とを有する。外輪部24は例えばエラストマを素材にして作られており、密度が高い薄肉の内リム層27と外リム層28、及び、両者の間に位置した三次元格子構造の圧縮変形層29とで構成されている。圧縮変形層29は、人が着座すると大きく潰れ変形する弾性強度に設定されている。従って、椅子は、人が着座すると移動が抑制されて、使用者は執務・作業を安定的に行える。床面Fとの接地面積が増大するため、床がフローリングであっても傷つけにくい。【選択図】図3


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    Titel :

    FURNITURE CASTER AND METHOD OF MANUFACTURING THEREOF, FURNITURE, CHAIR


    Weitere Titelangaben:

    什器用キャスタ及びその製造方法、什器、椅子


    Beteiligte:
    KAN TOMOJI (Autor:in) / TAKAHASHI KENSUKE (Autor:in) / YAMAMOTO YOHEI (Autor:in) / TAKETANI TOMOKI (Autor:in)

    Erscheinungsdatum :

    2023-03-13


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    B60B VEHICLE WHEELS , Räder für Fahrzeuge / A47C Stühle , CHAIRS



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