The present invention relates to the combined structure of a ball caster, which can drive the ball caster through a simple configuration and combination, thereby reliably supporting a user without slipping when the user is seated. A ball (500) is positioned on the coupling groove portion (416) of a first inner ball caster (410) and the coupling groove portion (426) of a second inner ball caster (420), and then the first inner ball caster (410) and the second inner ball caster (420) are combined to form an inner ball caster (400). An elastic member (300) is fitted to upper bodies (411, 421) of the inner ball caster (400) to be positioned under the locking protrusions (412, 422) of the inner ball caster (400). The inner ball caster (400) to which the elastic member (300) and the ball (500) are coupled has the locking protrusions (412, 422) fitted on the groove portions (219, 229) of an external ball caster (200) formed by coupling a first external ball caster (210) and a second external ball caster (220). The elastic member (300), the ball (500), the inner ball caster (400), and the outer ball caster (200) are combined into one. A housing (100) is fitted and coupled to the outside of the lower bodies (216, 226) of the external ball caster (200). Thus, one ball caster (10) is formed.

    본 발명은 간단한 구성과 결합을 통해 볼캐스터를 구동함으로써 사용자의 착석하는 경우에 미끄럼없이 안정적으로 지지하는 의자 볼 캐스터의 결합 구조에 관한 것으로, 볼(500)이 상기 제1 내부 볼캐스터(410)의 결합 홈부(416)와 제2 내부 볼캐스터(420)의 결합 홈부(426)에 위치한 후, 상기 제1 내부 볼캐스터(410)와 제2 내부 볼캐스터(420)가 결합하여 내부 볼캐스터(400)를 형성되고, 탄성부재(300)가 내부 볼캐스터(400)의 걸림 돌기(412, 422)의 아래에 위치하도록 상기 내부 볼캐스터(400)의 상측 본체(411,421)에 끼움 결합하며, 상기 탄성부재(300)와 볼(500)이 결합한 내부 볼캐스터(400)는 구비하는 걸림 돌기(412,422)가 제1 외부 볼캐스터(210)와 제2 외부 볼캐스터(220)가 결합하여 형성된 외부 볼캐스터(200)의 도입 홈부(219,229)에 끼워져 위치하며, 상기 탄성부재(300)와 볼(500), 내부 볼캐스터(400), 외부 볼캐스터(200)가 하나로 결합하고, 상기 외부 볼캐스터(200)의 하측본체(216,226)에 외부에 하우징(100)이 끼움 결합하여 하나의 볼캐스터(10)를 형성한 것이다.


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    Title :

    A Combined Structure of Ball Caster


    Additional title:

    볼캐스터의 결합구조


    Contributors:

    Publication date :

    2021-05-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

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



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