JPH09276568A - Safety razor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a safety razor having three blades, which is capable of working in well compliance with two types of users, i.e., one having a strong skin and the other having a weak. SOLUTION: A safety razor is structured so that an upper blade 2, middle blade 4, and lower blade 6 are laminated one over another while spacers 3 and 5 are interposed, in such an arrangement that the upper situated blade edge is positioned back from its lower situated blade edge, wherein the spacing between the upper blade 2 and the middle 4 is different from the spacing between the middle blade 4 and the lower 6.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a safety razor having three blades.

[0002]

2. Description of the Related Art Conventionally, there have been two-blade type safety razors, which is the mainstream at present, but three-blade types do not actually exist.

[0003]

If a new three-blade safety razor is to be manufactured and sold, the three blades come into contact with the skin at the same time, so that the burden on the skin becomes large and a user with weak skin is required. There is a risk of losing the razor. However, if the user has strong skin, even a three-blade safety razor will not cause any problems and will not cause razor loss. The skin of the user is different, some strong against the razor blade and some weak against it. When the three-blade safety razor is put on the market, the three blades simultaneously come into contact with the skin, so it is clear that the strength of the skin is more important than ever. Therefore, when the three-blade safety razor is put on the market, it is possible to meet the demand of users by distinguishing between those for users with strong skin and those for users with weak skin, so that the present invention is The task is to provide a safety razor that can meet the demand.

[0004]

According to the structure of the present invention, three blades are stacked in this order from the top to the upper blade, the middle blade and the lower blade through a spacer between the blades. , In the safety razor in which the blade edges of the blade bodies above the blade bodies of the lower blade bodies that are overlapped are retracted, in the safety razor, the distance between the upper blade body and the middle blade body, and the middle blade body and the lower blade body It is characterized in that it is different from the interval.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT FIG. 1 is a safety razor blade for a user with weak skin. An upper blade 2, an upper spacer-3, a middle blade 4, and a lower spacer-5 are arranged on the blade stand 1 in order from the top.
And the lower blade body 6 are stacked in this order. These blades and spacers are sandwiched between the blade stand 1 and the top plate 7, and the top plate 7
Is fixed and coupled by the convex portion 8 provided on the back surface of the. The lower blade 6 is the longest blade, and the next is the middle blade 4.
Therefore, the upper blade 2 is formed to be the shortest. Therefore,
The blade edge of the middle blade body 4 is set back from the blade edge of the lower blade body 6,
The blade edge of the upper blade body 2 is set back from the blade edge of the middle blade body 4.

The upper spacer 3 interposed between the upper blade 2 and the middle blade 4 has a large thickness, and the lower spacer 3 interposed between the middle blade 4 and the lower blade 6 has a large thickness. -5 has a small thickness. Therefore, the distance B between the upper blade 2 and the middle blade 4 is larger than the distance A between the middle blade 4 and the lower blade 6. When the distance between adjacent blades is large, the distance between both blade edges of those blades also becomes large, and the skin bites deeply between the blade edges when shaving, so the angle at which the upper blade contacts the skin is large. However, instead of shaving the beard deeply, the blade on the top causes irritation to the skin. On the other hand, when the distance between adjacent blades is small, the distance between both edges of those blades is also small, and the skin does not penetrate deeply between the edges, so the upper blade touches the skin. The angle becomes smaller and the upper blade becomes softer against the skin.

As shown in FIG. 1, when a spare blade having a small blade body distance A between the lower two blades and a large blade body distance B between the upper two blades is used, the blade body distance A between the lower two blades is small during shaving. Therefore, since the skin does not bite between the edges of the blades, the intermediate blade body 4 has a soft contact with the skin. Further, since the distance B between the upper two blades is large, the skin should dig deeply, but when shaving a beard, the lower two blades 5 and 6 simultaneously pull the beard and the skin in the traveling direction of the blade. Therefore, the skin is stretched sufficiently compared to when it is pulled with a single blade. As a result, since the skin is pulled in the direction of movement by the lower two blades, the skin does not dig in so deeply. Therefore, since the upper blade 2 does not give a strong irritation to the skin, the entire replacement blade relatively softly hits the skin, so that it can be applied to a user with weak skin.

FIG. 2 shows a spare blade whose blade interval is opposite to that of the spare blade shown in FIG. 1 and in which the interval A between the lower two blades is large and the interval B between the upper two blades is small. When shaving a beard using this spare blade, even if the beard and the skin are pulled with only one blade edge of the lower blade body 6, the skin is stretched sufficiently as compared with the case of being pulled with the blade edges of two blade bodies. I can't. Therefore, since the skin that has bitten into the lower two large blade intervals A does not extend so much, the middle blade 4 contacts the skin at a large angle and shave deeply, but it gives strong irritation to the skin. become. Therefore, the safety razor having such a structure can be adapted to a user with strong skin.

[0009]

The present invention has the above-described structure, and the fact that there are three blades enables efficient shaving. In addition, the distance between the upper blade and the middle blade, the distance between the middle blade and the lower blade is different,
When the distance between the upper two blades is increased and the distance between the lower two blades is decreased, it is possible to cope with a user with weak skin. On the contrary, when the distance between the upper two blades is reduced and the distance between the lower two blades is increased, it is possible to cope with a user with strong skin.

[Brief description of drawings]

FIG. 1 is a sectional view of a replacement blade of the present invention.

FIG. 2 is a sectional view of another embodiment of the present invention.

[Explanation of symbols]

 1 Blade Stand 2 Upper Blade 3 Upper Spacer 4 Middle Blade 5 Lower Spacer 6 Lower Blade 7 Top Plate 8 Convex Part

Claims (1)

[Claims] 1. Three blades are stacked in this order from the top to the upper blade, the middle blade and the lower blade through a spacer between the blades,
In a safety razor in which the blade edges of the upper blades are retracted more than the blade edges of the lower blades that are stacked, the distance between the upper blade and the middle blade, and the distance between the middle blade and the lower blade. Safety razor characterized by different from