A - Human Necessities – 47 – L
Patent
A - Human Necessities
47
L
15/76
A47L 11/162 (2006.01)
Patent
CA 1203356
Coupling Device For Floor Maintenance Machines Abstract A coupling device adapted for use with floor main- tenance machines of the type such as floor brushing, buffing, polishing, scrubbing or the like which enables automatic coupling of the maintenance element (i-e., brush, buffing disc or the like) without direct manual implementation there- of. The device includes an annual plate member having a circular opening adapted to receive a circular mounting flange carried by the machine drive shaft with the drive shaft having radially projecting lugs which are adapted to pass through radially extending arcuate recesses formed in the plate member so as to lockably engage behind the plate member. On one side of the plate member a first series of inner peripheral cam-like ramps communicate with one end the arcuate recesses and on the opposite side of the plate member a second series of inner peripheral cam-like ramps communi- cate with the opposite ends of the arcuate recesses. The second series of cam-like ramps include multiple tapered surfaces which terminate in integral, arcuate segmental webs disposed generally axially opposite associated of the first series of cam-like ramps all of which component parts syner- gistically coact to enable automatic coupling and decoupling of the maintenance element.
406876
Macrae & Co.
Malish Terrance J.
LandOfFree
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