Vibrating apparatus for forming concrete blocks
AssigneeKatsura Machine Co., Ltd.
InventorYoji Sekiguchi
Life of this patent
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Abstract
A vibrating apparatus for forming a concrete block by a vibration compaction method. The apparatus has a mold box for contouring a concrete block to be produced, a receiving plate which is detachably and resiliently attached to the bottom of the mold box, a device for vibrating the mold box, and an air spring device which permits a close and resilient contact between the mold box and the receiving plate. This close contact permits the receiving plate to effectively follow the vibration of the mold box. The vibration of the mold box is effectively transmitted to the concrete block material.
Claims6
Vibrating apparatus for forming a concrete block comprising:
- (a) a framework which has arms at opposite sides thereof and receiving blocks at a portion lower than said arms with a predetermined distance between said arms and said receiving blocks;
- (b) a four-sided mold box for forming a concrete block;
- (c) a receiving plate at the bottom of said mold box;
- (d) a platform which has a resilient layer thereon,
- said mold box being vertically movable and held in position by said receiving plate and said platform;
- (e) air spring means for resiliently pressing said mold box downwardly;
- said air spring means having a plurality of bellows, each of which is disposed at the bottom of said arms of the framework, (f) a hydraulic cylinder means for pressing said platform and said receiving plate upwardly above said receiving blocks such that said receiving plate is closely contacted with said mold box against the resilient force of said air spring means;
- (g) means for vibrating said mold box,
- said means for vibrating the mold box having a shaft rotatably connected to said mold box, an eccentric weight member connected to said shaft, and driving device for rotating said shaft.
Dependencies are inferred from the claim text.