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1. (WO2018048314) APPLIANCE DIRECT-DRIVE MOTOR MOUNTING ARRANGEMENT

Pub. No.:    WO/2018/048314    International Application No.:    PCT/NZ2017/050116
Publication Date: Fri Mar 16 00:59:59 CET 2018 International Filing Date: Sat Sep 09 01:59:59 CEST 2017
IPC: D06F 39/12
D06F 37/26
H02K 5/15
Applicants: FISHER & PAYKEL APPLIANCES LIMITED
Inventors: JACKSON, Russell Joseph
Title: APPLIANCE DIRECT-DRIVE MOTOR MOUNTING ARRANGEMENT
Abstract:
A reinforcing plate for stiffening an end wall of the water tub of a laundry washing machine. The plate is fastened to a central, recessed region of the end wall about a drive shaft and includes engagement features for contacting and engaging with complementary features formed on/in the end wall. A motor may be recess-mounted to the wall to reduce axial length of the motor and tub assembly. Once effectively engaged, the plate stiffens the thinned end wall, enabling effective transfer of out-of-balance forces from the shaft to the radially outer region of the end wall. The shape of the plate and/or the shape/arrangement of the engagement features enables rotational engagement of the plate to the end wall despite variations in plate and end wall dimensions from inherent manufacturing tolerances of those parts. A direct-drive motor assembly in which such a reinforcing plate forms a bearing housing is also described.