Squegee mounting for floor scrubber
First Claim
1. In combination with a floor scrubber having a frame, a powered brush mounted on said frame for working cleaning solution into a floor, and suction means including a squeegee assembly behind the brush for recovering spent liquid, an improved mounting assembly for said squeegee comprising:
- a mounting bracket mounted beneath said frame at the rear of said machine;
a gimbal housing mounted beneath the frame of said machine and adjacent the rear thereof, said gimbal housing mounting to said bracket for rotation about a transverse horizontal axis;
a yoke mounted to said gimbal housing for rotation about a vertical axis and including a rearwardly extending first member adapted for swinging motion in a horizontal plane;
said squeegee assembly including a forwardly-extending second member;
means for coupling said second tubular member of said squeegee assembly to said first member of said gimbal housing to permit rotation of said squeegee assembly about a horizontal axis parallel to the direction of travel of said machine when said squeegee assembly is centered for adjusting to uneven surfaces.first spring means connected between said machine of said frame and said housing for biasing the rear end of said housing in a downward direction to apply a downward force on said squeegee assembly;
second spring means carried in said housing for urging said yoke toward the centered position thereof; and
means on said housing for receiving a lift cable, whereby when said lift cable is raised vertically, said housing pivots about said first pivot axis against the bias of said first spring means to raise said squeegee assembly and said second pivot means to a nonuse position above the floor.
1 Assignment
0 Petitions
Accused Products
Abstract
An integral gimbal housing is trunnion mounted beneath and to the rear of the frame of a floor scrubber. The gimbal housing includes a vertical pivot shaft to which a yoke is mounted. A spring biases the gimbal housing to the use position. The yoke swings laterally and includes a rearwardly extending tubular receptacle which receives a forwardly extending tube of the squeegee so that the squeegee assembly has independent rotation about a horizontal axis and the squeegee adjusts to uneven surfaces. Torsion springs bias a vertical pivot shaft in the gimbal housing to the center position.
39 Citations
10 Claims
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1. In combination with a floor scrubber having a frame, a powered brush mounted on said frame for working cleaning solution into a floor, and suction means including a squeegee assembly behind the brush for recovering spent liquid, an improved mounting assembly for said squeegee comprising:
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a mounting bracket mounted beneath said frame at the rear of said machine; a gimbal housing mounted beneath the frame of said machine and adjacent the rear thereof, said gimbal housing mounting to said bracket for rotation about a transverse horizontal axis; a yoke mounted to said gimbal housing for rotation about a vertical axis and including a rearwardly extending first member adapted for swinging motion in a horizontal plane; said squeegee assembly including a forwardly-extending second member; means for coupling said second tubular member of said squeegee assembly to said first member of said gimbal housing to permit rotation of said squeegee assembly about a horizontal axis parallel to the direction of travel of said machine when said squeegee assembly is centered for adjusting to uneven surfaces. first spring means connected between said machine of said frame and said housing for biasing the rear end of said housing in a downward direction to apply a downward force on said squeegee assembly; second spring means carried in said housing for urging said yoke toward the centered position thereof; and means on said housing for receiving a lift cable, whereby when said lift cable is raised vertically, said housing pivots about said first pivot axis against the bias of said first spring means to raise said squeegee assembly and said second pivot means to a nonuse position above the floor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. In combination with a floor scrubbing machine having a frame, a powered brush mounted on said frame in a forward position for working cleaning solution into a floor to be treated, and suction means including a squeegee assembly behind said brush for recovering spent liquid from the floor, an improved mounting assembly for said squeegee comprising:
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a mounting bracket mounted beneath said frame at the rear of said frame and including first and second downwardly depending legs, the lower portion of each leg providing a journal for defining a trunnion mount; a gimbal housing having a top plate, first and second side plates and a bottom plate connected together to form a rigid, integral housing, said top plate extending rearwardly to a distal end, said first and second side plates each including an outwardly-extending stub shaft received respectively in the journals of said first and second depending legs of said mounting bracket, whereby said housing is trunnion-mounted to said bracket; first spring means connected between said frame and said gimbal housing for urging said squeegee assembly to use position; a shaft mounted vertically in said housing; second spring means for centering said yoke while permitting said yoke to rotate about a vertical axis; a yoke mounted to said shaft and extending rearwardly thereof; and means for mounting said squeegee assembly to said yoke while permitting said squeegee assembly to rotate about a horizontal axis defined by said yoke, whereby said squeegee may accommodate itself to variations in floor level. - View Dependent Claims (10)
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Specification