The present invention is produced by the combination of a book cart and a stairway type ladder which are used in a library. In particular, the present invention can eliminate inconvenience of having to carry a book cart and a ladder in a separate manner when organizing books. To this end, a ladder is coupled to a conventional wheeled book cart. The stairway type ladder attached to the side surface portion of the book cart can be used while being conveniently lowered or raised by means of a rail. Furthermore, a fixing device which can be conveniently controlled is mounted in order to prevent an accident in which the book cart can be pushed backward and overturned when the ladder is in use. The fixing device of the present invention has a shape in which anti-slip rubber is attached to the lower end of a cylindrical stainless steel, so as to be connected to the ladder to descend along with the ladder when the ladder is lowered in order to allow the floor and the ladder of the fixing device to form a right-angled triangle shape, thereby allowing the book cart to be stably fixed. The material of the book cart is an aluminum material so as to make the weight of the book cart and the ladder to be as light as possible, thereby facilitating ease in use. Therefore, according to the present invention, inconvenience, which is caused because the ladder and the book cart have to be simultaneously carried when books are to be moved to a higher place, can be eliminated.

    기술분야: 도서관에서 이용하는 북카트와 계단식 사다리를 합친 발명이다. 해결하고자 하는 과제: 서정리시 북카트와 사다리를 따로 들고다녀야하는 번거로움을 없애고자 한다. 과제의 해결수단: 기존의 바퀴가 달린 북카트에 사다리를 결합한 제품이다. 북카트의 측면부분에 붙어있는 계단식 사다리를 레일로 편하게 내리고 올리며 사용할수있다. 또한 사다리를 이용할때 북카트가 뒤로밀려 전복될수있는 사고를 방지하기위해 편리한 조작이 가능한 고정장치를 탑재하였다. 본 발명품의 고정장치는 원통형 스테인리스 스틸의 하단에 미끄럼을 방지하는 고무가 부착 되어있는 형태로 사다리와 연결되어있어 사다리를 내릴때 함께 내려와 바닥과 고정장치 사다리가 직각삼각형 형태를 이루어 안정적으로 북카트가 고정될 수 있도록 설계하였다. 북카트의 소재는 알류미늄 소재로하여 북카트와 사다리의 무게를 최대한 가볍게 만들어 쉽게 사용할 수 있도록 하였다. 효과 등: 본 발명품으로 높은곳에 도서를 이동시키자 할때 사다리와 북카트를 같이 들고다녀야하는 번거로움을 없앨 수 있다.


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    Title :

    Ladder Book Cart


    Additional title:

    사다리 북카트


    Contributors:
    KIM JU HYUN (author)

    Publication date :

    2021-05-07


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    B62B Von Hand bewegte Fahrzeuge, z.B. Handkarren oder Kinderwagen , HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS / E06C LADDERS , Leitern



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