The present invention relates to a device for opening and closing a cover of a cargo box of a cargo truck, capable of opening and closing a cover, made of a tent, of various cargo trucks having a cargo box by using a four-bar link instrument. A purpose of the present invention is to provide an opening and closing device of a new structure, capable of minimizing an operation radius of a rotary arm and smoothly opening and closing a cover. To achieve the purpose, the opening and closing device includes: a fixing member (10) fixed to an upper part of both sides of a cargo box; a link member connected with the fixing member (10) to be rotated around the fixing member (10); a driving part (40) delivering a force to the link member to shake the same; a gear box (30) connected to a lower part of the link member; a rotary arm (50) having one end connected with the gear box (30), and having the other end connected with a winding rod (61) to be rotated; and a winding rod (61) horizontally connecting the rotary arms (50) provided on both sides of the cargo box. As the link member is shaken by the operation of the driving part (40), the winding rod (61) and the pair of rotary arms (50) connected with the link member wind or unwind a tent cover (60) while performing circular arc-shaped movement in an upper part of the cargo box.
본 발명은 적재함이 박스 형태로 구성된 각종 화물차량에서 천막으로 된 덮개를 4절 링크기구를 이용하여 개폐하는 화물차량의 적재함 덮개 개폐장치에 관한 것으로서, 회동암의 작동반경을 최소화시키고 덮개를 원활하게 개폐시킬 수 있는 새로운 구조의 개폐장치를 제공하는데 그 목적이 있다. 이를 위하여 본 발명은, 적재함의 양측면 상부에 고정되는 고정부재(10)와, 상기 고정부재(10)에 연결되어 고정부재(10)를 중심으로 회동하는 링크부재와, 상기 링크부재에 힘을 전달하여 요동시키는 구동부(40)와, 상기 링크부재의 하부에 연결되는 기어박스(30)와, 일단이 상기 기어박스(30)와 연결되고, 타단이 권취 로드(61)와 연결되어 회동하는 회동암(50)과, 적재함의 양측에 구비되는 회동암(50)을 수평으로 연결하는 권취 로드(61)를 포함하고, 상기 구동부(40)를 작동시켜 링크부재를 요동운동시킴으로써, 상기 링크부재와 연결된 한 쌍의 회동암(50) 및 권취 로드(61)가 적재함 상부에서 원호운동을 함면서 천막 덮개(60)를 풀거나 감도록 하는 것을 특징으로 한다.
OPENING AND CLOSING APPARATUS OF FREIGHT COVER OF CARGO TRUCK
화물차량의 적재함 덮개 개폐장치
2021-04-27
Patent
Electronic Resource
Korean
IPC: | B60P Fahrzeuge zum Transport von Lasten oder zum Befördern, Tragen oder Aufnehmen besonderer Lasten oder Gegenstände , VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS / B60J WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES , Fenster, Windschutzscheiben und bewegbare Dächer, Türen oder Ähnliches für Fahrzeuge |
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