JPS58121983A - 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 relates to the outer blade shape of an electric shaver.

Conventionally, efforts have been made to improve the cutting quality of electric shavers, particularly to improve the ability to shave quickly, but by using the outer blade of the present invention, it is possible to improve the ability to shave quickly. - The present invention will be explained below with reference to figures.

Fig. 1 is an external view showing one embodiment of the present invention, and Fig. 2 is an external view showing one embodiment of the present invention.
5 shows an application example of the present invention. FIG. 4 is a side view of the outer cutter 5, WGS is a side view of the outer cutter 3, and FIG. 6 is a side view of the outer cutter 3. It is a usage state diagram.

FIG. 7 is an enlarged view of FIG. 6.

In all the figures, a part of the Iij body is an outer cutter frame for fixing the outer cutter 5, and the outer cutter frame is removably mounted on the main body case 2. It has a single protrusion row 3a that extends in the width direction IK of the sVi main body case, and has a shape that straddles the protrusion as shown in Fig. 4, and has an inclination angle of 03 with respect to the direction of the inner cutter blade.
The pore width is wider and the length is longer than the pore 3c described below.
It has elongated holes 3b with the second largest pore area, and pores 3C provided in other general areas. As is well known, an outer cutter fitting 9 is fixed to the outer cutter 3, and the upper part of the outer cutter fitting 9 engages with the stepped portion of the outer cutter frame 1, so that the outer cutter 6 is fixed in the height direction. The positioning has been completed. 4 is an inner blade, and a large number of blades 4a
is molded in resin in the direction shown in FIG. 4, and is installed in the upper part of the vibrator 5, so that it is always in contact with the inner surface of the outer cutter 3 by means of an inner cutter spring 10.

) Camera 5Fi, as is well known, the ratio of left and right is 1111W from the first drawing surface (@ with switch button 8)
The UIC thin film is configured to withstand the buckling force of the inner blade and the force pushing the outer blade during shaving. It is a means to vibrate left and right, and a motor board 6VC for fixing the motor 7 to the main body case 2 is fixed.
As is well known, an eccentric pin (not shown) is fixed to the tip nA of the shaft, and twice the eccentricity of this eccentric pin is the inner cutter 4.
This is a vibration stroke.

With the above structure, when a user wants to shave his beard, he holds the device in his hand, turns it on, and applies the outer blade 3 to his face, but the easiest way for the user to shave is with his thumb. This is a method of turning on the switch and pressing the outer cutter 5 so that the center line 11 is almost perpendicular to the skin of the face without changing the grip as shown in FIG.

On the other hand, in general, shaving backwards will give you a deeper and faster shave than shaving forwards, but since beards generally grow from the top of the face towards the center of the throat, shaving in this way is recommended. As shown in FIGS. 1 and 2, it is necessary to shave efficiently in some cases.As shown in FIG. 1 and FIG. A major feature is that a row of protrusions 3a are provided on the front surface of the outer cutter. As shown in FIG. 4, and as described above, an elongated hole 3b is provided which has a shape that straddles the protrusion row 3aYr and has an angular deviation of 03 from the direction in which the inner cutter is disposed. Therefore, when the razor is moved in the direction of the arrows shown in FIGS. 6 and 7, the nuclear protrusions first come into contact with the skin and indent the skin. Then, the next beard 13 that is densely layered on the skin, particularly the long beard, falls into the elongated hole 3b, and this beard is guided by the protrusion and guided to the end of the elongated hole, and the outer cutter 3
゜Cut off by close sliding action with inner blade 4. Further, the cut vkFi is finished shaved by the pore located on the right side of the center line 11 in FIG. In addition, in the unlikely event that beards (especially long hairs) that did not fall into the long holes 3b on the first occasion pass through the protrusions for the first time, they will be raised back up by the protrusions, and the hairs will fall into the skin. Instead of being in close contact with the skin, the direction of the hair changes subtly as it is separated from the skin. For this reason, when the electric razor passes through the same manner as described above for the second shave, there is a much higher possibility that the electric razor will fall into the elongated hole 5b than with a conventional electric razor.
There is a very high possibility that it will be cut off the second time, which increases the ability to shave quickly.

In order for the protrusions to produce the above-mentioned effects, as mentioned above, the protrusions must be in a position that makes contact with the skin when the outer blade is pressed against the skin in a natural state after turning on the device.
Furthermore, it is preferable that the protrusions move while squeezing the skin and beard while being pressed, without completely sinking into the skin, but only slightly indented. This position is shown in Figure 2.

The switch button is located on the center line 11 in FIGS. 6 and 7, or in the range of θ, =:30@ from this position, and most preferably in the range of θ1=o° to 30°, with the switch button facing forward. For the type shown in , it is installed in the direction away from the switch (at the back). By doing this, as described above, the long holes 3b can easily catch the beard, especially long hair, allowing for quick shaving.

In addition, as mentioned above, the elongated hole 5b according to the present invention is provided in the crotch part and is wider than the narrow hole, has a longer length, and has a larger area. Previously, it was known that the larger the hole in the outer blade, the easier it was for hair to be introduced into the hole. I was unable to exceed a certain size because I was in a situation where I was in pain. However, as in the present invention, by straddling the protrusion, even if the skin falls into the protrusion as shown in Fig. 5, there is no inner cutter near the protrusion, and the protrusion rises! There is an inner cutter at the starting point of the protrusion, but due to the elasticity of the skin, the outer cutter does not come into perfect contact with the skin, so we created an extremely long and wide hole that extends beyond the starting point of the protrusion. However, it also has the characteristic of not causing any pain. Furthermore, it is desirable in terms of cost that the inner cutter can have a simple shape with a cylindrically ground side surface similar to that of a general electric shaver.

However, in the present invention, the protrusion of the outer cutter is
Since it is placed near the skin, it receives a force equivalent to the force of pressing it against the skin. This pressing force acts as a force that tries to dent the outer cutter, but if the outer cutter is dented, it not only loses its adhesion with the inner cutter, but also interferes with the vibrating inner cutter, causing the outer cutter to dent. It can also be destroyed.

Therefore, in the present invention, the beam 3 located around the protrusion and elongated hole
The elasticity of d should be stronger than that of the general beam, and the fourth
As shown in the figure, another major feature is that the long holes are inclined by θl with respect to the arrangement direction of the inner cutters. In order to strengthen the elasticity, the width of the beam should be wider than the periphery of the pore located in the general part, and it should also be made from multiple peaks and valleys as shown in Figure 8, which are different from the area around the pore 3c shown in Figure 7. It was made into a single beam. By doing this, it is possible to not only increase the strength but also give an image of a precise appearance rather than a simple wide beam. Moreover, the reason why the beam 5d is provided at es' is to prevent interference with the inner cutter even if the beam 5d is slightly bent.

As detailed above, the outer cutter according to the present invention, the row of protrusions provided in the range of 09 to 30'' from the center of the outer cutter, the elongated hole extending longer than the starting point of the protrusion across the wrinkled protrusion row, and the bending of the protrusion. Increasing the strength around the elongated holes to reduce the number of protrusions eliminates pain during shaving, improves quick shaving by reliably introducing not only short hair but also long hair, and reduces protrusions. If the height is within the same level as the tip R of the protrusion, the texture will not be impaired.

As an application example of the present invention, FIG. To explain, when the center line of the main body case 2 is 12 and the center line 1 of the outer cutter 5 is 11, 11, 121 or 0. It's only leaning. At this time, the protrusion row 3a of the outer cutter 5 is inclined by 01 from the center line 11 of the outer cutter 3, but by setting this θ angle fO-50 and using the above-mentioned outer cutter, the same effect as in the first embodiment can be produced. be able to.

Also, 1 of the present invention! The invention can be easily implemented not only in a reciprocating electric shaver in which the inner cutter vibrates back and forth, but also in a rotary electric shaver in which the inner cutter rotates.

[Brief explanation of drawings]

Fig. 1 is an external view showing one embodiment of the present invention, and Fig. 2 is an external view showing one embodiment of the present invention.
3 is a sectional view showing an application example of the present invention, FIG. 4 is a schematic partial plan view showing the outer cutter, FIG. 5 is a side view of FIG. 4, and FIG. 6 is a sectional view of FIG. A state diagram of the electric shaver according to the present invention in use, FIG. 7 is an enlarged view of FIG. t@6, FIG. 8 is a sectional view of the beam around the pore, and FIG. In the figure, 1... Outer blade frame 2... Body case 5... Outer blade 4... Inner blade 8... Switch button 5a. ...Protrusion row 5b of the outer cutter...Elongated hole 3c of the outer cutter...Small hole of the outer cutter

Claims (3)

[Claims] (1) An outer cutter having a row of protrusions extending in the width direction of the electric razor, an inner cutter that slides in contact with the inner surface of the outer cutter, a case member that supports the outer cutter, and a protrusion on the outer cutter. An electric shaver in which the row is set in a range of 01=0 to 50 degrees from the center of the outer cutter. (2) An outer cutter having a row of protrusions extending in the width direction of the electric shaver, an inner cutter that slides in contact with the inner surface of the outer cutter, a case member that supports the outer cutter, and a switch operating member provided on the case member. The electric shaver is characterized in that the row of protrusions is located in a direction farther from the switch operation piece than the center of the outer cutter. (3) The electric shaver consists of an outer cutter having a row of protrusions extending in the width direction, an inner cutter that slides in contact with the inner surface of the outer cutter, and a case member that supports the outer cutter, and the outer cutter has a row of protrusions. An M razor characterized in that the beams connected to each protrusion are made of a stronger elasticity than the beams of the general portion of the outer cutter.