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    • 3. 发明专利
    • CONCRETE VIBRATOR WITH FLOAT
    • JPH09217491A
    • 1997-08-19
    • JP4683796
    • 1996-02-09
    • MIKASA SANGYO KK
    • ENOMOTO HIROSHISHIONOYA AKINOBU
    • E21D11/10B06B1/10E04G21/08
    • PROBLEM TO BE SOLVED: To expand the scope of concrete compaction work and make finishing work efficient by connecting a flexible hose to a bar vibrator body and fitting a diaphragm with a float in a detachable manner. SOLUTION: A bar vibrator body 12 is T-shaped and a power cable outlet is protruded from the longitudinal center. A vibration isolating cylinder 30 is mounted to the outlet and a flexible hose 32 to the vibration isolating cylinder. A diaphragm 16 provided with a float 18 made of a lightweight synthetic resin is attached to the bar vibrator body 12 in a detachable manner. A concrete vibrator 10 with a float is inserted from a form inside a tunnel lining and concrete is placed. The vibrator body 12 and the diaphragm 16 vibrate while retained horizontally by the buoyancy of the float 18, removing air bubbles in ready-mixed concrete and performing compaction and finishing work efficiently. The vibration of the vibrator body 12 is cushioned well by the vibration isolating cylinder 30 and thereby lessens fatigue on workers.
    • 7. 发明专利
    • CONCRETE VIBRATOR WITH FLOAT
    • JPH09195512A
    • 1997-07-29
    • JP2740496
    • 1996-01-23
    • MIKASA SANGYO KK
    • ENOMOTO HIROSHISHIONOYA AKINOBU
    • E04G21/08B06B1/02
    • PROBLEM TO BE SOLVED: To widen the horizontal working range and increase the working efficiency, by forming a bar-formed vibrator body to have a T-shaped form and fitting a float detachably to the vibrator body and adjustably for the transfer thereof. SOLUTION: A bar-form vibrator body 12 is formed to have a T-shaped form in which a leading part 16 of the electric source cord is protruded at the longitudinal center and a drive motor 18 is arranged at the central part in the vibrator body 12 and further, eccentric pendulums 22, 22 are fixed to both ends of the rotary shaft 20 respectively. A flexible hose 26 is connected to the leading part 16 of the source cord and a float 14 is detachably and transferably fitted to the flexible hose 26. Since the vibrator body 12 is stretched horizontally, the working range is widened and a compacting work can be efficiently done in a wide range. And the insertion depth of the vibrator body 12 into concrete can be easily adjusted by the positional adjustment of the float 14 or detaching it therefrom.