JPS6053638B2 - Electric razor with razor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an electric razor with a sharpening blade, and aims to provide an electric razor with a sharpening blade that is simple and easy to use.

[Prior art]

Although many types of electric razors with sharpening blades have been devised and commercialized, they have had various drawbacks.

For example, when a shaving blade is added to a vibrating electric razor, a driven arm 37 is provided at the center of the movable shaving blade 35, as shown in Japanese Patent Laid-Open No. 55-24029.
In this case, since an outer cutter and an inner cutter are installed in the center of the electric razor, a means for driving the movable blades is disclosed in Japanese Patent Laid-Open No. 55
In the case of -24029, the trimmer drive rod 36 and the driven arm 37 had to be separated from the inner cutter 6 and outer cutter 4 in terms of height. For this reason, the height of the scraping blade when used for scraping is located at a lower height than the outer blade, making it difficult to use. [Objective] The present invention improves this and makes it easier to use by setting the crease blade at the same height as the outer cutter, and at the same time provides a simple crease knife.

〔Example〕

Hereinafter, the present invention will be explained in detail with reference to the drawings.

Fig. 1 is an assembly diagram showing an embodiment of the present invention, Fig. 2 is a partial side view of the scraping blade as seen from the right side of Fig. 1, and Fig. 3 is a perspective view of the movable scraping blade. It is a diagram. In all the figures, 1 is a motor, 2 is a motor board that positions the motor, and below is a case ( (not shown). Vibrator 4 Rotating part 3a
It has an inner blade drive part 4b in which the inner blade 5 engages with the upper part of the vibrator 4 on a line that almost coincides with the axis of (on the vertical line in FIG. 1), In the figure (indicated by arrow A), a movable scraping blade driving part 4a, which is an engagement part with the movable scraping blade 7, is provided protruding from the outer side of the outer end of the inner cutter 5.

6 is a sharpening fixed blade fixed to the sharpening board 9; 7
As is well known, the movable scraping blade is pressed against the fixed scraping blade 6 by a spring (not shown).

Moreover, the end face of the movable scraping blade is bent to form the vibrator 4.
A driven arm 7a that can be engaged with the movable scraping blade drive section 4a is formed. When the movable cutting blade drive section 4a and the driven arm 7a are engaged (the state shown in FIG. 1), they are at a position where they cross the inner cutter 5 in the height direction (direction of arrow B in FIG. 1). ing. In Figure 1, the inner blade 5
The lower surface and the upper surface of the driven arm 7a cross each other by an amount C in the height direction. In FIG. 1, the fixed scraping blade 6 and the movable scraping blade 7 are shown by dashed lines. 10 is an eccentric joint that fixes the rotation of the motor 1.

[Effect]

To explain the operation, when the motor rotates, the vibrator 4 is reciprocated in the arrow direction A around the pin 3 by the eccentric joint 10.

Then, the inner cutter 5 engages with the inner cutter drive part 4b of the vibrator 4, and the inner cutter 5 having a blade moves back and forth, and the beard can be shaved by the action with the outer cutter. When the user uses the scraping blade, when he performs another external operation, the entire scraping blade jumps up in a well-known manner, and the driven arm 7a of the movable blade 7 moves to the movable scraping blade drive section 4a of the vibrator 4. It engages with the oscillator and reciprocates in response to the movement of the vibrator. At this time, since the driving part 4a of the vibrator is laterally separated from the rotating part 3a in the vibration direction as described above, not only horizontal movement but also vertical movement is involved, but the driven arm 7a of the movable blade Due to the sliding between the part and the inner surface of the groove of the drive section 4a, only horizontal movement is transmitted to the movable scraping blade, and the adhesion between the scraping blade and the fixed scraping blade is not impaired. [Effect] As explained above, in the present invention, the vibrator is provided with an inner blade drive section in which the inner blade engages and a movable scraping blade drive section in which the movable scraping blade engages, and these two drive sections are connected to the vibrator. installed at a position outside the outer end of the inner blade in the vibration direction, and a driven arm that engages with the movable cutter blade driving portion of the vibrator is provided from the center of the movable cutter blade to a position outside the outer end of the inner cutter; The movable scraping blade drive unit and the driven arm are disposed at positions where they cross in the height direction when they are engaged, so that the driven arm of the movable scraping blade is moved outward from the outer end of the inner blade. Since it can be installed, the position of the scraping blade can be set at the same height as the inner and outer blades without interfering with the inner and outer blades.

For this reason, it is possible to set a scraping blade on the top of the electric razor, creating a design similar to a safety razor, thereby providing an easy-to-use scraping blade. In addition, even if installed in this way, only one vibrator is required, and there is no need to provide any special accessories for the movable cutting blade, so the mechanism can be simplified, improving reliability and reducing costs. I can figure it out. In addition,
The driven arm 7a and the scraping movable blade 7 are formed as two bodies,
Even if it is fixed by welding or the like, the same effect as in the first embodiment can be obtained.

[Brief explanation of the drawing]

FIG. 1 is an assembly diagram showing an embodiment of the present invention. Figure 2 is a side view showing the cutting blade. FIG. 3 is a perspective view showing the movable scraping blade. In the figure, 1 is the motor, 2 is the motor board, 4 is the vibrator, 5 is the inner blade, and 7 is the movable cutting blade.

Claims (1)

[Scope of Claims] 1. An inner cutter that is driven in pressure contact with an outer cutter, a vibrator that vibrates the inner cutter, a motor that drives the vibrator, a motor board that holds the motor, a sharpening fixed blade, and this. The vibrator has a lower rotary part rotatably supported on the lower end of the motor board, and an upper part of the vibrator. An inner blade drive part is provided which is formed to protrude almost on a line upward of this rotating part, and a scraping movable blade drive part which is formed to protrude to an outer position of the outer end of the inner cutter in the vibration direction of the inner cutter. , the movable scraping blade has a driven arm protruding from the center thereof to a position outside the outer end of the inner cutter to engage with the movable scraping blade driving section, and the movable scraping blade driving section and the covered An electric razor with a sharpening blade, characterized in that the drive arm is arranged at a position that crosses the inner cutter in the height direction when the two are engaged.