CONCRETE COLUMN STRIKING DEVICE
PROBLEM TO BE SOLVED: To provide a concrete column striking device capable of reducing fatigue of a person who strikes and obtaining accurate vibration data.SOLUTION: A device main body 1 is held against a concrete column in a state that a tip of a probe 5 contacts a surface of a concrete column 14....
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Zusammenfassung: | PROBLEM TO BE SOLVED: To provide a concrete column striking device capable of reducing fatigue of a person who strikes and obtaining accurate vibration data.SOLUTION: A device main body 1 is held against a concrete column in a state that a tip of a probe 5 contacts a surface of a concrete column 14. When the probe 5 is moved inside a housing, a gear 11 engaged with a rack gear on the probe 5 converts a length that the probe 5 moves inside the housing into a number of rotation. A cam type gear 12, which rotates in tandem with the gear 11 and is engaged with the rack gear on an extendable guide 9, converts the number of the rotation into the length that the extendable guide 9 moves in a direction to compress a spring 7. Because the cam type gear 12 has a cam shape, compression of the spring 7, which is released when the cam type gear 12 rotates to a prescribed position, enables a hammer 6 to strike the surface of the concrete column 14. |
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