Abstract: A rolling bearing holder unit disclosed herein includes: a rolling bearing with a predetermined rotation axis, the rolling bearing including: an outer ring; an inner ring placed inward relative to an inner circumferential surface of the outer ring to be coaxial with the outer ring; and a plurality of rolling bodies placed between the outer ring and the inner ring; a bearing holder placed in contact with an outer circumferential surface of the outer ring or an inner circumferential surface of the inner ring in the rolling bearing; and a strain gauge with a resistor that is configured to detect a strain of the outer ring or the inner ring.

Abstract: A reduced thickness trimmer unit for electric shavers is mounted within and partly on a head casing. The unit has a frame, a stationary cutter on one end and a movable cutter which cooperates with the stationary cutter. The frame contains a resilient leg which extends interiorly thereof and within the plane thereof so as to resiliently support at its free end a coupling element for connection with the movable cutter. The coupling element engages with an eccentric cam carried on the driving shaft of the motor so that it is driven by the driving shaft to reciprocate relative to the frame within the plane of the frame as the resilient leg limits the coupling element to move in the reciprocating direction within the plane of the frame. The resilient leg and the coupling element combine to convert rotary motion of the driving shaft into reciprocatory motion of the movable cutter in the trimmer unit and are received within the thickness of the frame.

Abstract: A self-regulating electric heater includes a plurality of ceramic PTC resistors having flat contact surfaces on their opposite sides disposed between a pair of flat electrode plates with the contact surfaces in electrical and thermal contact with the plates. A support frame of electrically insulative material is formed with receiving portions respectively for the PTC resistors and the electrode plates to positions and hold the resistors and plates in assembled relationship for insertion as a single assembly into a closed-end cavity in a metallic radiator with the electrode plates in good heat transfer contact with the inner wall surface of the cavity. The frame is provided with spring seats receiving springs which coact with the radiator to bias the support frame into the cavity to insure stable intimate thermal contact between the electrode plates and inner cavity wall. The PTC resistors may be provided with chamfered edges along the peripheries of the flat contact surfaces thereof.

Abstract: An electric shaver with a trimmer is disclosed in which a single flexible seal is used to protect the motor and electric parts from water and other material entering through the perforated comb or the trimmer.

Abstract: An electric shaver with a trimmer is disclosed in which a single flexible seal is used to protect the motor and electric parts from water and other material entering through the perforated comb or the trimmer.