초록 ▼

An improved, portable, lightweight vibrator which is an integral unit and is easily and quickly removably secured to a screed board to vibrate it. Only a source of electrical power is required to operate it. Virtually any 2×4, 2×6 or larger boards of wood or metal such as aluminum or magnesium up to

An improved, portable, lightweight vibrator which is an integral unit and is easily and quickly removably secured to a screed board to vibrate it. Only a source of electrical power is required to operate it. Virtually any 2×4, 2×6 or larger boards of wood or metal such as aluminum or magnesium up to 20 feet in length can be used as the screed board. When properly installed on the screed board, the vibrator will walk or pull the screed board toward the rough pour, to save time and labor in leveling concrete.

대표청구항 ▼

A portable, lightweight vibrator adapted to be easily and quickly removably secured to a screed board for vibrating the screed board comprising: a generally U-shaped integrally formed housing having a top wall and a pair of side walls, a bottom wall longer in length than said top and pair of side wa

A portable, lightweight vibrator adapted to be easily and quickly removably secured to a screed board for vibrating the screed board comprising: a generally U-shaped integrally formed housing having a top wall and a pair of side walls, a bottom wall longer in length than said top and pair of side walls, and a pair of depending walls below said bottom wall and extending the length thereof, said bottom wall being disposed between said top and pair of side walls and providing a cavity for receiving therein a vibration element, said pair of depending walls forming a channel for receiving therein a screed board to which said vibrator is to be removably secured; means carried by said depending walls for clamping said vibrator to a screed board disposed with said channel; said vibration element comprising an unbalanced rotating element disposed and rotatably supported within said cavity; a source of power for rotatably driving said vibration element secured to said bottom wall and coupled to said vibration element; and a generally U-shaped cover disposed about said source of power and secured to said housing.