A - Human Necessities – 47 – J
Patent
A - Human Necessities
47
J
A47J 19/00 (2006.01) A47J 43/07 (2006.01)
Patent
CA 2113691
A shaft (6) extending from a motor housing (1) of the mixer terminates in an end portion (10) which, for easy attachment of an operating head (H) thereto, is formed with a shallow circumferential groove (18). This permits fitting a hub or sleeve (13) on the operating head (H) onto the end portion (10) of the shaft with axial misalignment, without exerting lateral bending forces on the hub (13). The head is formed with a resiliently deflectable tab or flap (15) for frictional engagement with the shaft, to hold the head in secure axial position on the shaft. The terminal end (19) of the shaft (6) is convex, essentially ball-shaped or part-spherical. Preferably, a guide ring or guide surface (23), having the diameter of the shaft, is positioned between the circumferential or ring-shaped groove (18) and the ball-shaped or spherical end (19). The .groove (18) is shallow, wider than deep, and preferably, in cross section, part-circular. The circle has a radius of curvature of preferably between about 75% to 150% of the diameter of the shaft (6) on which the operating head is fitted.
Fetherstonhaugh & Co.
Maweva Holding Ag. (ltd.)
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