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US 12,448,798 B2Granted
Floor stripper machine
AssigneeNational Flooring Equipment, Inc.
InventorsMatthew C. Burk, Cole Willard
Life of this patent
Estimating the term…
Abstract
Employing a microcomputer and a user interface to control the operation of various motors and a linear actuator of a floor stripper improves efficiency and effectiveness while reducing vibration and sound levels during a floor stripping operation.
Claims15
A floor stripper comprising:
- (a) a frame supported by a plurality of wheels;
- (b) an oscillating body coupled to the frame, said oscillating body oscillated with respect to the frame by an eccentric and a body motor;
- and
- (c) a blade head coupled to the oscillating body by a blade pitch adjustment mechanism, said blade pitch adjustment mechanism comprising:
- (i) a linkage;
- and
- (ii) a linear actuator coupled to the linkage and adapted to manipulate the linkage to adjust the pitch of the blade head relative to the oscillating body, wherein the linkage comprises:
- (1) a first bar having a lower section, an upper section, and a rearwardly projecting section;
- (2) an output link having a first end and second end, the output link pivotally coupled adjacent the first end to the lower section of the first bar and pivotally coupled adjacent the second end to the blade head;
- and
- (3) a bellcrank comprising a hub, a first arm extending from the hub, the first arm pivotally coupled to the rearwardly projecting section of the first bar, and a second arm extending from the hub pivotally coupled to the blade head, and wherein the linear actuator is an electro-mechanical linear actuator coupled to the hub of the bellcrank and to the upper section of the first bar.
8 more elements
A floor stripper comprising:
- a frame supported by a plurality of wheels;
- an oscillating body coupled to the frame, said oscillating body oscillated with respect to the frame by an eccentric and a body motor;
- a blade head coupled to the oscillating body by a blade pitch adjustment mechanism, said blade pitch adjustment mechanism comprising (i) a linkage and (ii) a linear actuator coupled to the linkage and adapted to manipulate the linkage to adjust the pitch of the blade head relative to the oscillating body;
- and
- a blade holding tool having a shaft and wherein said blade head comprises a neck having a bore adapted to receive the shaft, wherein said shaft has an annular groove and a stop, and the neck has a front surface adapted to engage the stop and a slot aligned with the annular groove when the stop engages the front surface.
2 more elements
Dependencies are inferred from the claim text.