B - Operations – Transporting – 26 – B
Patent
B - Operations, Transporting
26
B
30/60
B26B 19/02 (2006.01) B26B 19/20 (2006.01)
Patent
CA 1045802
ABSTRACT OF DISCLOSURE Disclosed herein is a hair clipper comprising an outer housing of electrically insulating material, a motor located in the housing and including a field structure, an armature structure including a shaft, and bearing assemblies spaced axially of the armature structure and engaging the armature structure and the field structure for supporting the armature structure for rotation relative to the field structure, each of said bearing assemblies including a bearing and a bearing sleeve fabricated of electrically insulating material and located to isolate the bearing from one of the armature structure and the field structure, and screws mounting the field structure from the outer housing. Located at one end of the housing is a blade set connected to the field structure and including a first or stationary blade fixed relative to the field structure, a second blade movable relative to the first blade and including thereon a driven element formed of electrically insulating material and engaged by a drive member carried by the arma- ture shaft to cause reciprocating movement of the second blade relative to the first blade in response to rotation of the shaft, which drive member is located in co-axial, surrounding relation to an eccentric end portion of the shaft and is sup- ported by an annular bearing located between and engaging the end portion and the drive member to afford relative rotation therebetween. The stationary blade of the blade set includes thereon a bracket defining a groove, and there is also pro- vided a blade set mounting assembly including a mounting plate fixed to the field structure, a tongue removably extending into the groove, a hinge pin connecting the tongue and the - 1 - mounting plate to afford pivotal movement of the tongue relative to the mounting plate between a first position per- mitting insertion and withdrawl of the tongue relative to the groove, and a second position preventing such insertion and withdrawal, a leaf spring secured to the mounting plate and including a portion engaging the tongue for selectively and releasably holding the tongue in the first and second positions, and a spring retainer mounted on the mounting plate and including a lip and spaced wings releasably gripping the bracket to releasably retain the blade set on the tongue, a recess in the field structure and a helical spring in the recess bearing, at one end, against the field structure and bearing, at the other end, against the portion of the leaf spring to augment the action of the leaf spring. - 2 -
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