JP2017127394A5 - - Google Patents

Claims (8)

A plurality of cutting blades (16-19) having fixed blades (22, 26) and movable blades (23, 27) are arranged on the razor head (2),
A movable blade drive structure (D1, D2) for reciprocatingly driving the movable blade (23, 27) includes a motor (3) and a drive lever (55, 27) for transmitting the power of the motor (3) to the movable blade (23, 27). 56), and a coupling body (57-60),
The drive lever (55, 56) is arranged in a state intersecting with the reciprocating direction of each movable blade (23, 27), and one end thereof is supported by the swing central shaft (68, 69) so as to be reciprocally swingable. ,
Connected bodies (57-60) are arranged at a plurality of positions in the longitudinal direction of the drive levers (55, 56) facing each movable blade (23, 27) in the vertical direction,
An electric shaver characterized in that the distance between each coupling body (57 to 60) and the swing center axis (68, 69) is different. Each fixed blade (22, 26) has a blade hole for introducing a beard,
The opening area of the blade hole of the fixed blade (22, 26) on the side close to the swing center axis (68, 69) of the drive lever (55, 56) is the swing center axis (68) of the drive lever (55, 56). The electric shaver according to claim 1, wherein the electric shaver is set to be larger than the opening area of the blade hole of the fixed blade (22, 26) far from 69).   The electric shaver according to claim 1 or 2, wherein the fixed blade (22, 26) on the side close to the swinging central axis (68, 69) of the drive lever (55, 56) is formed of a slit blade. A pair of cutting blade groups (C1, C2) consisting of a plurality of cutting blades (16-19) are arranged on the razor head (2), and a movable blade driving structure (for each cutting blade group (C1, C2)) ( D1 and D2) are provided,
A drive lever (55) constituting the movable blade drive structure (D1) of one cutting blade group (C1) and a drive lever (56) constituting the movable blade drive structure (D2) of the other cutting blade group (C2) The electric shaver according to any one of claims 1 to 3, wherein each of the movable blade driving structures (D1 and D2) is driven to swing in a state of being synchronized in opposite directions. The swinging central axis (68) of the drive lever (55) constituting the movable blade drive structure (D1) of one cutting blade group (C1) and the movable blade drive structure (D2) of the other cutting blade group (C2) The swinging central axis (69) of the drive lever (56) constituting the motor is separated from the motor (3),
The movable blade drive structure (D1, D2) includes an operation conversion structure that converts the rotational power of the motor (3) into a reciprocating swinging operation.
The electric razor according to claim 4, wherein each drive lever (55, 56) is simultaneously driven in a reverse direction by means of a single motor (3) through a motion conversion structure.   The motion conversion structure consists of an eccentric cam (62, 63) fixed to the output shaft (3a) of the motor (3) and a cam groove (64, 65) formed at the swinging tip of each drive lever (55, 56). The electric shaver according to claim 4 or 5, wherein the electric shaver is configured. One drive lever (55) and the other drive lever (56) are arranged before and after the central axis of the motor (3),
The at least one of the front and rear drive levers (56) is inclined with respect to the front and rear central axis of the razor head (2) perpendicular to the central axis of the motor (3). Electric razor. A plurality of coupling bodies (57 to 60) are arranged at a plurality of locations of one drive lever (55) and the other drive lever (56), respectively.
The distance from the axial center of the rocking | fluctuation center axis | shaft (68 * 69) of each drive lever (55 * 56) to the center of each connection body (57-60) is made different. The electric razor described in one.