PROBLEM TO BE SOLVED: To provide a caster structure which enables stable traveling by matching directions of tires provided at left and right sides in a structure having revolving casters each having an axle at the rear side relative to a revolving shaft.SOLUTION: A caster structure is formed including: revolving parts 3 each having a revolving shaft 33 which rotates each of revolving casters 2 provided at left and right sides of a vehicle body 10 around a vertical axis; and axle moving parts 4, each of which is attached to the revolving part 3 and uses rotary force of a tire 20 to move an axle 55 in a fore and aft direction of the revolving shaft 33. A connection rod 8 is provided at the front side relative to a support rod 21 supporting the left and right revolving casters 2. The connection rod 8 is connected with axle guides 41 through hinges 81, and a trapezoidal link is formed by using the revolving shafts 33 and the hinges 81.SELECTED DRAWING: Figure 1

    【課題】旋回軸の後方に車軸を有する旋回キャスターを有する構造において、左右に設けられたタイヤの向きを揃えることで、安定した走行を可能にしたキャスター構造を提供する。【解決手段】車体10の左右に設けられる旋回キャスター2を、鉛直軸を中心に回転する旋回軸33を有する旋回部3と、その旋回部3に取り付けられ、前記タイヤ20の回転力を用いて車軸55を前記旋回軸33の前後方向に移動させる車軸移動部4とを備えて構成する。そして、左右の旋回キャスター2を支持する支持ロッド21の前方側に、連結ロッド8を設ける。この連結ロッド8は車軸ガイド41にヒンジ81を介して連結されており、旋回軸33やヒンジ81を用いて台形リンクを構成するようにしておく。【選択図】図1


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    Title :

    CASTER STRUCTURE


    Additional title:

    キャスター構造


    Contributors:

    Publication date :

    2018-10-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge / B60B VEHICLE WHEELS , Räder für Fahrzeuge



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