초록 ▼

A vibrating screed is provided which permits selective adjustment of the angle between the axis of a rotatable eccentric and the plane defined by the bottom of the screed plate to vary the relative vertical compaction and horizontal smoothing oscillation movement imparted by the eccentric. The scree

A vibrating screed is provided which permits selective adjustment of the angle between the axis of a rotatable eccentric and the plane defined by the bottom of the screed plate to vary the relative vertical compaction and horizontal smoothing oscillation movement imparted by the eccentric. The screed includes a frame, motor, an eccentric driven by the motor, a screed plate, and a pair of locking hinges which releasably connect the frame to the screed plate at one of a multiplicity of possible angular relationships therebetween. The screed plate includes a tension adjustment to facilitate leveling of the screed and the weight of the eccentric is positioned between two spaced-apart bearings for enhanced support and for enabling the axis of rotation of the eccentric to be varied relative to the screed plate.

대표청구항 ▼

[ I claim:] [1.] A vibrating screed comprising:a frame;an eccentric rotatable about a first axis and mounted on said frame;a source of rotational power carried by said frame and coupled to said eccentric for rotating said eccentric about said first axis;a screed plate; anda locking hinge adjustably

[ I claim:] [1.] A vibrating screed comprising:a frame;an eccentric rotatable about a first axis and mounted on said frame;a source of rotational power carried by said frame and coupled to said eccentric for rotating said eccentric about said first axis;a screed plate; anda locking hinge adjustably securing said frame to said screed plate at one of a plurality of selectable angular relationships therebetween whereby said first axis of said eccentric may be varied relative to said screed plate.