|국가/구분||United States(US) Patent 등록|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 8 인용 특허 : 15|
A roller drive unit is provided for an air freight system in an aircraft and comprises a drive roller that can be retracted and raised in order to transport freight containers in various directions. Unlike conventional roller drive units of this type which are only capable of conveying freight containers in forward or backward directions, the roller drive unit of the present invention is adapted to convey freight containers in any desired direction. To this end the roller drive unit comprises a substantially annular fixing device for attachment of the ro...
1. A roller drive unit for the transportation of freight containers in a plurality of directions comprising:a substantially annular fixing means for attachment of the roller drive unit to a floor of a cargo hold; a drive roller for rotational engagement with a freight container to be transported; and a carrier means for the drive roller and relative to which the drive roller can be retracted and can be raised into an operation position for rotational engagement with said freight container, the carrier means being located within the annular fixing means a...