DAEGU CATHOLIC UNIVERSITY INDUSTRY ACADEMIC COOPERATION FOUNDATION;대구가톨릭대학교산학협력단
发明人:
KIM JIN GON,김진곤,KIM JI GEON,김지건,KANG GI MUK,강기묵,KIM JIN SEOK,김진석
申请号：
KR1020180021018
公开号：
KR1020190101080A
申请日:
2018.02.22
申请国别(地区):
KR
年份:
2019
代理人:
摘要：
An electric wheelchair, according to an embodiment of the present invention, comprises: a traveling unit including a plurality of traveling wheels； a seat unit including a seat frame and a seat pad； a backrest unit including a backrest frame connected to the seat frame, and a backrest pad； a driving unit including a motor providing power； and an elevating unit adjusting the height of the seat unit. The elevating unit includes: a first shaft member capable of rotating in the axial direction； a first screw formed on the outer circumferential surface of the first shaft member and having a spiral formed from one end toward a center portion of the first shaft member in a first rotational direction； a second screw formed on the outer circumferential surface of the first shaft member and having a spiral formed from the other end toward the center portion of the first shaft member in a second rotational direction； a first nut coupled to the first screw； a second nut coupled to the second screw； a first support member having one end rotatably connected to the seat frame and the other end rotatably connected to the first nut； and a second support member having one end rotatably connected to the seat frame and the other end rotatably connected to the second nut. When the first nut and the second nut are mutually moved in the axial direction by the rotational movement of the first shaft member, the first support member and the second support member are rotated in the vertical direction, respectively, such that the height of the seat unit can be adjusted, thereby enabling a wheelchair user to easily move to a bed having a different height.본 발명의 실시예에 따른 전동 휠체어는, 복수의 주행바퀴를 포함하는 주행부, 좌석프레임 및 좌석패드를 포함하는 좌석부, 좌석프레임에 연결되는 등받이프레임 및 등받이패드를 포함하는 등받이부, 동력을 제공하는 모터를 포함하는 구동부, 좌석부의 높이를 조절하는 승강부를 포함하며, 승강부는, 축방향으로 회전운동 가능한 제1축부재, 제1축부재의 외주면에 형성되며, 제1축부재의 일단부로부터 중심부를 향하며 형성되는 제1회전방향의 나선을 가지는 제1스크루, 제1축부재의 외주면에 형성되며, 제1축부재의 타단부로부터 중심부를 향하며 형성되는 제2회전방향의 나선을 가지는 제2스크루, 제1스크루에 결합되는 제1너트, 제2스크루에 결
