JPS584584A - Reciprocal electric razor - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a reciprocating blade comprising a reciprocating inner cutter in which a large number of blades are arranged in parallel, a driver for reciprocating the inner cutter, and an outer cutter in sliding contact with the inner cutter. The purpose of this invention is to improve the shaving effect by causing the outer blade to slightly vibrate with a simple structure and efficiently introducing long or curly beard into the beard introduction hole.

Conventionally, the idea of slightly vibrating the outer cutter has been known, but its structure was complicated and had the disadvantage of being less practical.

The present invention has been made in view of this background, and the following describes the first
Description will be made according to the embodiment shown in FIGS. 3 to 3.

In the figure, (1) is a housing, (2) is a rotary motor housed in the housing (1), (3) is an eccentric shaft attached to the output shaft of the rotary motor (2), and (4) is a rotary motor housed in the housing (1). This is a balancer attached to the eccentric shaft (3). (5) is a drive element made of stone molded wood that converts the rotational motion of the motor into reciprocating motion, and the thin flexible legs (5) correspond to the chains of a swing.
5 m), (5 turtle), an inner blade support piece (5b) supported by the free end of the flexible leg (51) and having a U-shaped overall shape and corresponding to the seat of a swing; It consists of a cantilever-shaped elastically deformable piece (5C) whose base is fixed to the piece (5b) and which is elastically deformed in a direction other than the displacement direction of the inner cutter support piece (5b), that is, the reciprocating direction of the inner cutter to be described later. And elastically deformable piece (5C)
is provided with a hole (6) into which the eccentric shaft (3) is loosely fitted with a small gap, and a connecting protrusion (7) connected to the inner cutter (described later) is provided at the center of the upper surface of the inner cutter support piece (5b). ing.

(8) is a U-shaped outer cutter with a large number of hair introduction holes, and a highly rigid outer cutter support plate (9) is attached to the U-shaped end.
, +91. (10) is an auxiliary drive element, which has a rectangular tube part (101) that fits into the connecting protrusion (7) and transmits the driving force of the drive element (5), and a center part that can be bent freely via a plastic hinge. and connected to the rectangular tube part (10 m) (in this embodiment, integrally connected) and connected at both ends to the outer cutter support plate (9), in this embodiment provided on the outer cutter support plate (9). and a swing shaft (11) between the plastic hinge and both ends.
), (11) are pivotally supported by a pair of drive groups (Job), (1
0b). The auxiliary drive element (10) is moved in the direction opposite to the displacement direction of the drive element (S), that is, the inner blade (to be described later)
Move the outer cutter (8) in the opposite direction to L (12).
is an inner cutter in which a large number of fan-shaped blades (121), (121... Outer blade (8) l (
1! come into contact with (13) is an outer cutter frame that surrounds the outer cutter (8), and (14) is a dustproof gasket provided to protect the live part.

Such a reciprocating electric shaver operates as follows.

The eccentric shaft (3) of the motor (2) makes an orbital circular motion with respect to the output shaft, and the orbiting circular motion is deformed and absorbed by the elastic deformable piece (5C) and cooperates with the deformation of the flexible leg (5a). This converts the inner cutter support piece (5b) into a movement in the X direction shown in the drawing, that is, a reciprocating movement of the inner cutter. This includes a rectangular tube part (
7) moves to the right in the illustration, the auxiliary drive element (
The central plastic hinge of 10) also moves to the right and is bent via the plastic hinge, causing drive 1 (tab
) rotates around the pivot shaft (11), so both ends of the drive group (10b) move to the left in the figure, causing the outer cutter (8) to move to the left. In other words, the outer blade (12) is the inner blade (8)
It vibrates in the opposite phase.

In the above embodiment, the driver (5) has flexible legs (5).
a) and an elastically deformable piece (5C) to convert rotational motion into reciprocating motion; however, the driver of the present invention is of course not limited to this; Although the movement of the child (5) is transmitted to the outer cutter (8) in opposite phases, it goes without saying that it may be transmitted to the outer cutter (8) in the same phase.

As described above, the reciprocating electric shaver of the present invention is.

The drive element is equipped with an auxiliary drive element that follows the engagement of the drive element, and an outer cutter is attached to the auxiliary drive element to slightly vibrate the outer cutter. It has been possible to provide a razor with a micro-vibration outer blade that is good at introducing hair with a simple configuration that requires only the use of the necessary drive element.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view showing a reciprocating electric shaver according to an embodiment of the present invention, and Fig. 21i is a section 1iE of the same. FIG. 3 is a schematic diagram illustrating how the outer cutters fit together. Patent applicant Matsushita Electric Works Co., Ltd. Patent attorney Toshimaru Takemoto (and 2 others)

Claims (1)

[Claims] (1) In a reciprocating electric shaver consisting of an inner cutter with a large number of blades arranged in parallel and reciprocating motion, a driver for reciprocating the inner cutter, and an outer cutter with which the inner cutter comes into sliding contact, the driver 1. A reciprocating electric shaver characterized in that the drive element is provided with an auxiliary drive element that follows fitting, and an outer cutter is attached to the auxiliary drive element so as to slightly vibrate the outer cutter.