JPS58130077A - 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 particularly relates to the shape of the outer blade of an electric shaver.

Conventionally, stain-resistant razors have sought sharpness, especially quick shaving performance, but with the use of the outer blade of the present invention, it is possible to improve this quick shaving performance. Ta.

The present invention will be explained below with reference to figures, but parts not directly related to the first part II4 will be simplified or omitted.

Figure t/141 is a part of the outer rope garden showing an example of the present invention, Figure 2 is an A-mu section rkJ diagram of Figure 1, Figure 3 is a partial enlarged view of the outside according to the present invention, and *' figure. 5 is a cross-sectional view of the outside 5, FIG. 5 is a usage state of the electric shaver according to the present invention, and FIG. 6 is an enlarged view of FIG. 5.

In all the figures, reference numeral 1 denotes a tomo fishing external force frame which is a part of the body and keeps the outer blade ink constant, and the outer blade frame is mounted on the main body case 2 in a removable manner. 5 has a row of protrusions 5a extending in the direction of the width of the main body case, and has a shape that straddles the protrusions and has an inclination angle θ■ with respect to the direction of the inner blade, so that it can be inserted through the small hole 5C described later. It has long holes 6b with a large hole area and nine small holes 3C provided in the other general parts. As is well known, an outer cutter mounting stem ν is fixed to the outer cutter 5, and the upper part of the outer cutter mounting stem engages with the stepped portion of the outer cutter frame 1, thereby positioning the external force 5 in the longitudinal direction. has been completed. Reference numeral 4 denotes an inner blade, and a large number of blades 4a are resin-molded in the direction shown in Fig. 95, and are incorporated into the upper end of the vibrator 5, and are always in contact with the inner surface of the outer blade h5 by the inner blade spring 10, and are in good condition. .

11m! The + child 5 has a thin film on the left and right four end faces when viewed from the side in Figure 1, right N (with the switch button 8), as is well known. It is configured to withstand the force that pushes the outer blade at the time, and the thin film is used as a node.
A screw motor 7 is fixed 71 to a motor board 6 for fixing it to the main body case 2 by a means for moving the inner side 4 substantially horizontally from side to side. Further, as is well known, an eccentric pin (not shown) is fixed to the tip of the shaft of the motor 7, and the photographing stroke of the inner cutter 4 is twice the eccentricity of this eccentric pin.

With the above structure, when a user shaves his beard, he holds the device in his hand, turns it on, and places the outer blade 5 on his face. However, the most commonly used shaving method is In this method, turn on the switch with your thumb, and press it outward without changing your grip, so that the center line 11 of N5 is almost perpendicular to the skin of your face, as shown in FIGS. 5 and 6.

On the other hand, in general, shaving in the opposite direction (@) will give you a deeper and faster shave than shaving in the opposite direction. When shaving the beard in the opposite direction, it is necessary to be able to shave efficiently. For this purpose, the present invention uses a multi-layer outer blade 5 shown in FIGS. 1 and 2.
A major feature is that a row of protrusions 3a is provided on the front surface of the outer cutter at a position extremely close to the center line 11 of the blade and away from the switch button 8. As shown in No. 4, and as described above, a long hole 5b is provided which has a shape that straddles this protrusion row 3a and has an angle of 03 from the direction in which the inner cutter is arranged. When the razor blade is moved in the direction of the arrows shown in the fifth @ and sixth @, that is, in the direction of reverse shaving, the protrusions 5a first indent the skin. Then, the beard 1s that is in close contact with the skin (even the 1st beard) stands out from the skin, and the beard 1s stands out from the skin.
flljK is depressed, and this beard is cut off by sliding action between the long side or short side of the elongated hole, the outer cutter 5, and the inner cutter 4, while guiding it with the protrusion. Also, after cutting it off, it is M2 figure.

The long hole 6b and the small hole 3atC located on the right side of the center $4111 in FIG. 5 are closed. In order to get the full effect of the long hair 11Il hair during this final shaving, straddle the above-mentioned protrusion and raise the protrusion height from the starting point of the protrusion to a height of 14F.
A hole with a length of at least 2.5 times f) is efficient. This is because the area around the starting point of the protrusions cannot be shaved in a rounded shape as it does not adhere to the skin. Also, in the unlikely event that the beard (particularly long hair) that did not fit into the long hole 5 bKl on the first occasion, the hair will be erected by the protrusion when it passes through the protrusion for the first time. Since it is no longer in close contact with the skin and the direction has changed slightly, an electric shaver similar to that described above for the second shave was passed through the elongated hole 5b. The possibility of shaving is much higher than with conventional electric razors, and the possibility of shaving melting the second time is extremely high, which increases the ability to shave quickly.

As mentioned above, the protrusions produce the effects mentioned above.
After turning on the instrument switch, when pressing the outer blade against the skin in a natural state, one protrusion should be in a position that makes appropriate contact with the skin, and also that the protrusion should be completely absorbed into the skin when the blade is pressed properly. It is desirable to move while squeezing the skin and beard while leaving only a slight indentation in the skin without causing any damage.This position is shown in Figure 2.

On the center line 11 of Figures 5 and 6, or within the range of u and xsoo from this position, and most preferably 01=0
In the range of 6 to 30 degrees, for types with switch buttons on the front, the direction in which the switch moves away from the button (back l1
If side) K is provided.

By doing this, the above-mentioned long hole 5b becomes a beard.
In particular, it is easy to catch long hair and can be done quickly (-), and since there are long holes on both sides of the protrusion that straddle the protrusion, the protrusion and the long hole act in the same way as described above even when moving from the direction opposite to the arrow. do. In addition, as described above, the present invention has a long pore (5C provided in the crotch) and a large area, so even long beards and beards that are not oriented in the same direction are extremely difficult to fall into. It has become. Conventionally, the larger the hole in the outer cutter, the
It is known that beards tend to fall in easily and are easily cut, but if the beard gets too large, the skin will get into the hole and be scraped by the inner blade located on the inner surface of the outer blade, causing a painful condition. It was impossible for me to get -. However, when the elongated hole 5b is positioned across the protrusion as in the present invention, the protrusion
Acting as a sieve, the beard falls into the long hole,
It acts to push the skin away from the inside, and even if the skin near the top of the protrusion falls into the elongated hole, the inner part is not in close contact with the wrinkled protrusion, so the origin of the protrusion It has the characteristic that it does not cause pain even if an extremely long and wide hole extending beyond the starting point (range A in FIG. 4) is provided. Furthermore, it is desirable in terms of cost that the inner side surface shape is cylindrically ground in the same way as a general electric shaver, so that a simple shape with a 9 shape can be adopted. However, in the present invention, since the protrusion of the outer cutter is provided near the center line 11 of the cutter, it receives a force equivalent to the force of pressing against the skin. This pushing force is a force that tries to dent the outside, but if the outer blade is dented, it not only loses its close contact with the inside, but also interferes with the inside while stroking, causing the outer blade to dent. may also be destroyed. Therefore, in the present invention, the protrusion is located at the circumference of the elongated hole! The elasticity of t13 (l) is made wider than the beam of the part, and the thickness is increased in some parts to make it stronger, and the elongated hole is tilted by 03 with respect to the arrangement direction of the inner cutter. This is done so that even if 3d bends slightly, it will not interfere with the inside.

As described above, the present invention has the following major features: 1) the cutting edge line extending in the width direction of the electric shaver is provided near the top of the outer cutter; Since the @ protrusion is provided near the center line 11 of the outer cutter where it is most efficient, it is possible that the # protrusion may have an adverse effect. This is because the wrinkle projections press directly against the skin, making the skin feel too harsh. Or, the above-mentioned force to push down the protrusion acts, making it too easy to bend the beam 5d around the elongated hole toward the inner cutter.Furthermore, the contact area between the skin and the outer cutter surface is too small around the protrusion. Shortening the castle, long hole 3b and pore 3C
In order to increase the width of the beam between the beams, the pore area ratio decreases, and conversely, the fastness is impaired, etc., but in the present invention,
In order to eliminate this negative effect, we will show it in the 4th garden! By making the height of one row of protrusions smaller than the tip R of the corrugated protrusions, consideration was given to making the angle o4 between the protrusion starting point and -crotch an obtuse angle so that the protrusion would come into clear contact with the skin, as shown in Figure 4. The radius of the row of protrusions shown is made smaller than twice the leading edge R of the wrinkle protrusions.
Aiming for the same effect as above, the resolute shape of the protrusion was formed from a part of a simple single circle, and the radius A of the protrusion (as shown in the 4th EIK ) was made as small as possible and created with less f.

By taking these measures, the effects of the projections and long holes described above can be fully utilized without impairing xp, skin feel, finish shaving properties of the pores, and durability against external forces.

The present invention has been described in detail above. As shown in FIG. 4, the Rin circle touches the tip RK near the starting point of the protrusion, has a size within the same degree as the R, and has a curvature opposite to that of the nucleus R. It may also be possible to change the configuration to a circular arc. Also, as mentioned above, the protrusion needs to have an appropriate size in terms of skin contact and porosity, and H is α6■
〜α1 wm, A is t2■〜α2■, R is α6−〜α1
■ is optimal.

[Brief explanation of drawings]

Fig. 1 is an external view showing an embodiment of the present invention, Fig. jlIz is an octagonal sectional view of the first cross-section, and Fig. s5 is a partially enlarged view of the outer cutter of the present invention. FIG. 4 is a diagram of the outer cutter, FIG. 5 is a diagram of how the electric shaver according to the present invention is used, and FIG. 6 is an enlarged view of FIG. 5. In all diagrams, 1... Outer frame 2... Main body case 5...
Outer 4...Inner 5a...Protrusion row
sb...Long hole 5C...Small hole 5d...
Beam 4a between the long holes... Inner h Figure 14 A shows the distance between the starting points of the protrusions that is longer than the width of the protrusions 50

Claims (5)

[Claims] (1) An outer cutter having a row of protrusions extending in the width direction of the electric shaver, a long hole located across the protrusions, an inner cutter that slides in contact with the inner surface of the outer cutter of the scissors, and supports the outer cutter. An electric shaver comprising a case member, and the height of the row of protrusions of the outer cutter is made smaller than the tip R of the wrinkle protrusion. (2) The electric shaver has a row of extending protrusions, an elongated hole located across the branch protrusions, an inner cutter that slides in contact with the inner surface of the outer cutter, and an inner cutter that slides in contact with the inner surface of the outer cutter. It consists of a case member that supports the outer cutter, and the width of the row of protrusions on the outer cutter is set to n4H at the tip of the branch protrusion.
An electric razor whose special mission is to set it smaller than twice the size of your friend. (3) A case that supports the long hole located across the external force percent branch protrusion that has a row of protrusions extending in the width direction of the electric shaver, the inner cutter that slides in contact with the inner surface of the outer cutter, and the outer cutter. Part i1)
, an electric shaver characterized in that the cross-sectional shape of the protrusion of the outer cutter is formed as a part of a single circle. (4) A case that supports the outer blade having a row of protrusions extending in the width direction of the electric shaver, the elongated hole located across the protrusions, the inner blade that slides in contact with the inner surface of the outer blade, and the outer blade. The shape of the outer protrusion is formed according to claims 1 to 5! ! Electric razor with IjP fine. (5) An outer cutter having a row of protrusions extending in the width direction of the electric shaver, a long hole located across the branch protrusions, an inner cutter that slides in contact with the outer inner surface, and a case member that supports the outer cutter described in 117 An electric shaver comprising: the cross-sectional shape of the protrusion of the outer cutter is formed by a part of a single circle, and the width of the branch protrusion is within 1W.