CONCRETE PLACING DEVICE

PURPOSE:To uniform working time of concrete placing by providing a vertically position-changeable driving means and a vibrator repeating ascend and descend after the lapse of a determined time in the vicinity of a concrete discharge hole. CONSTITUTION:A concrete working machine 5 is formed of a craw...

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Bibliographic Details
Main Author YAMAMOTO MICHIHIRO
Format Patent
LanguageEnglish
Published 16.05.1991
Subjects
BUILDING
BUILDING IMPLEMENTS OR OTHER BUILDING AIDS, OR THEIRUSE
FIXED CONSTRUCTIONS
FORMS
HANDLING BUILDING MATERIALS ON THE SITE
REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTINGBUILDINGS
SCAFFOLDING
SHUTTERING
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Summary:PURPOSE:To uniform working time of concrete placing by providing a vertically position-changeable driving means and a vibrator repeating ascend and descend after the lapse of a determined time in the vicinity of a concrete discharge hole. CONSTITUTION:A concrete working machine 5 is formed of a crawler running wheel 6, an engine 7 and a generator 8, and provided with a concrete discharge hole 1 from a guide cylinder 21, and a vibrator 2 and a concrete feed port 3 in the vicinity thereof. The generator 8 and a code 9 are connected to the vibrator 2, and a wire 12 and a non-contact switch 14 are provided on a reciprocally rotatable motor 10, forming a vertical position changing means. One end of a vertically rotatable arm 16 is mounted on a reciprocally rotatable motor 17, and a ring body 18 contacting with the wire 12 is provided on the other end to time the ascend and descend of the vibrator. Hence, the working time can be uniformed.
Bibliography:Application Number: JP19890254790