| 摘要 |
PROBLEM TO BE SOLVED: To provide a constant volume feeder for articles to be transported having a housing with a hopper simplified in structure, reduced in size and weight, and contributing to the saving of cost. SOLUTION: A large-diameter through hole is formed at each of both end walls of a drum Hd of the housing. Recessed grooves forming conveying chambers arranged in the circumferential direction between themselves and the inner peripheral surface of the drum Hd are formed at the outer peripheral surface of a rotor body Rm. A pair of disk-like end walls closing axial both ends of the recessed grooves are formed integrally with the rotor body Rm. Both ends of a rotor shaft Rj extend from the disk-like end walls to the outside through the large-diameter through holes and pivotally supported on an installation wall B independently of the housing H. One end thereof is connected to a rotatingly driving means M outside the housing H. The gaps between the outer peripheral parts of the disk-like end walls and the opening edges of the large-diameter through holes are sealed by first seal devices allowing the relative rotation and misalignment thereof. The gap between the portion of the outer peripheral part of the rotor body Rm held by the adjacent conveying chambers and the inner peripheral surface of the drum Hd is sealed by a second seal device allowing the relative rotation and misalignment thereof. COPYRIGHT: (C)2008,JPO&INPIT
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