JPH09135972A - Safety razor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a safety razor with a blade edge covered protectively at a specified interval and further, with a contrivance to prevent beard cuttings from clogging between a means to cover the blade edge at a specified interval and a blade body. SOLUTION: This safety razor is composed of plural blade bodies 1, 2, 3 of a thin rectangular metal plates and spacers 4, 5 interposed between the blade bodies for maintaining a specified interval between the blade bodies. Each of the spacers 4, 5 has plural slit grooves 11, 14 provided from the front edge to the rear end of the spacer, so that the front part of the spacer is formed into plural comb teeth 12, 13. In addition, at least, some of the comb teeth 12 has a narrow width on the tip projected slightly more forward than the blade edge of the blade body located on the upper side of the spacer. Further, an upward turning protrusion 15 is provided on the tip of the projecting comb tooth, and assumes a rising position right before the blade edge.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a safety razor having a plurality of blades, and when the blade is used, the entire length of the blade edges does not come into contact with the skin, but the blade edges are spaced from each other to the skin. As for contact, it relates to a safety razor, which is provided with means for partially impeding contact between the blade edge and the skin.

[0002]

2. Description of the Prior Art There are conventional two-blade safety razors provided with means for partially blocking the contact between the blade edge and the skin so that the blade edge contacts the skin at a distance. Was. In the lower blade body, a large number of projections are provided on the upper surface of the guard part integrally provided with the blade stand so as to be parallel to the blade edge at the tip of the blade edge, and the projection is raised immediately before the blade edge. The edge of the lower blade was covered at regular intervals. In the upper blade, a large number of comb teeth are provided on the front part of the top plate that covers the upper blade, and the tips of the comb teeth project slightly ahead of the blade edge of the upper blade to cover the blade edge at equal intervals. Was there.

[0003]

The blade of the safety razor in which the blade edges of the blade contact the skin at a certain interval has the above-described structure, and in particular, the blade edges of the upper blade are spaced apart from each other. There was a problem with the means to put and cover. That is, the blade edge of the upper blade body is formed by forming the front part of the top plate above it into a comb-teeth shape, and the tip end of the comb tooth protrudes slightly ahead of the blade edge of the upper blade body, so that the blade edge Was covered at intervals. Therefore, there is a possibility that the shavings removed during shaving may get stuck between the upper blade and the comb teeth. If you have a two-blade safety razor,
The lower blade can cover the blade edge with a gap by providing a projection on the guard portion, and the upper blade can cover the blade edge with a gap by providing a comb tooth on the front portion of the top plate. , A safety razor with three blades stacked could not cover the edge of the blade in the middle with a gap. It is an object of the present invention to provide a safety razor that eliminates the above drawbacks of conventional products.

[0004]

The structure of the present invention is a safety razor having a plurality of blades, and each blade has a front edge formed with a sharp edge so that the edges are parallel to each other. The blades are mounted on top of each other, and the blade edge of the upper blade body is slightly retracted from the blade edge of the lower blade body, and the interval between the blade bodies is constant. A spacer for keeping the space between the spacer and the spacer is provided with a plurality of cut grooves from the front edge toward the rear end of the spacer so that the front portion of the spacer is divided into a plurality of comb teeth. The tips of at least two comb teeth are formed to have a narrow width, and the tips project slightly forward of the blade edge of the blade body above the spacer, and the tips of the protruding comb teeth It is characterized in that an upward protrusion is provided and the protrusion stands up immediately before the blade edge.

[0005]

Next, embodiments of the present invention will be described with reference to the drawings. An embodiment relates to a safety razor replacement blade having three blades. The three blades, that is, the upper blade 1, the middle blade 2 and the lower blade 3, have an upper spacer 4 and a lower spacer 5 interposed therebetween, and the blade base 6 and the top plate 7 are interposed therebetween. Is sandwiched between. The blade edge 8 of the upper blade body is located slightly retreating from the blade edge 9 of the middle blade body, and the blade edge 9 of the middle blade body is located slightly retreating from the blade edge 10 of the lower blade body. I have.

The spacers 4 and 5 are both formed from a single metal plate, and are provided with a plurality of cut grooves 11 and 14 from the front edge to the rear edge of the spacer. Server
Is divided into a plurality of comb teeth 12 and 13. Since the comb teeth 12 and 13 are bent at an angle close to a right angle in the middle, only the front half of the bent comb teeth 12 and 13 is attached to each blade, and the bent rear half of the spacer. Hangs outward from the rear end of the blade and hangs close to the rear end of the blade. Each of the comb teeth 12, 13 is not of the same shape but is divided into two types, a long comb tooth 12 and a short comb tooth 13.

The lower spacer 5 has ten comb teeth 12, 1
3, long comb teeth 12 are provided therein, and short comb teeth 1 are provided.
3 is 6 pieces. The long comb teeth 12 have a slightly pointed triangular tip, and an upward projection 15 is integrally provided at the tip. The tip of the long comb tooth 12 protrudes slightly forward from the blade edge 9 of the middle blade body thereon, so that the projection 15 rises immediately before the blade edge 9. Therefore, the skin comes into contact with the projections 15 when shaving, so that the blade edge of that portion does not come into contact with the skin. The projection 15 is formed in a rounded shape in order to improve the texture when used. Since the tip of the long comb tooth 12 only slightly protrudes beyond the blade edge 9 of the middle blade, the tip of the comb tooth 12 does not extend to the blade edge 10 of the lower blade body thereunder. Is also located at the rear. There is no projection at the tip of the short comb tooth 13 of the lower spacer, and since the length is short, it is retracted from the blade edge 9 of the middle blade body. Therefore, the tip of the short comb tooth 13 is exposed to the outside. I haven't. In the present invention, the short comb teeth 13 having no projection are not necessarily required.

The comb teeth 12, 13 of the lower spacer are sandwiched between the middle blade body 2 and the lower blade body 3 in the above-described state, but the lower spacer 5 itself is further provided. The lower part of the lower spacer bends downward at the rear end of the lower blade body 3 and hangs down at the rear part of the lower blade body 3.
A plurality of cut grooves 14 provided between the comb teeth 12 and 13
Cuts into the rear portion of the lower spacer, so that the cut groove 14 extends to the rear half of the lower spacer which is bent at the rear end of the lower blade body 3 and hangs down. Therefore, the spacer portions sandwiched between the middle blade body 2 and the lower blade body 3 are only the comb teeth 12 and 13 arranged at intervals.
Since the base extending in series is exposed to the outside from the rear end of the blade body, the cut groove 14 between the comb teeth penetrates through the gap between both blade bodies 2 and 3 in the front-rear direction to remove shavings. It is a passage for discharging from the rear end.

The upper spacer-4 has nine comb teeth 12,13.
Are provided, in which five long comb teeth 12 and five short comb teeth 13
Are four. The tip of the long comb tooth 12 has a slightly pointed triangular shape and an upward projection 15 is integrally provided at the tip, and there is no projection at the tip of the short comb tooth 13 of the upper spacer. The lower spacer 5 is similar to the lower spacer 5 described above, in that the tip of the comb tooth 13 which is retracted from the blade edge 8 of the upper blade body and is short is not exposed to the outside. The function of the upper spacer-4 is the same as that of the lower spacer-5.

The upper spacer 4 also bends in the middle similarly to the lower spacer 5, and the rear portions of the two spacers hanging from the rear end of the blade body to the outside are overlapped with each other. The rear half of the lower spacer 5 is in contact with the lower spacer 5 so as to cover the outer half of the lower half. The cut groove 11 of the upper spacer is deeply cut, and the lower blade body 3 is formed similarly to the cut groove 14 of the lower spacer.
Because it reaches below the upper surface of the upper space,
The base portion 16 of the lower spacer does not cover the rear opening for discharging the whiskers by the notch 14 of the lower spacer, and does not prevent the whiskers stuck in the notch 14 of the lower spacer from being discharged. Absent.
As is apparent from this, the cut grooves 11 and 14 of the upper and lower spacers are provided so that their center lines are substantially at the same position in order to discharge shavings. The reason for this is that if the positions of the cut grooves 11 and 14 do not match, the shavings clogging the cut groove 14 of the lower spacer will be interrupted by the comb teeth 12 and 13 of the upper spacer. Because it cannot be discharged from the rear end.

As described above, five long comb teeth 12 of the upper spacer are provided at intervals, and four long comb teeth 12 of the lower spacer are provided at intervals. The positions of the long comb teeth of both spacers do not match. The reason is that if the positions of the long comb teeth 12 of both spacers are the same, both the upper and lower projections 1 provided at the tips of the comb teeth.
This is because the positions 5 and 15 coincide with each other, and the upper blade 1 and the middle blade 2 are shaved off at the same place on the skin, being interrupted by those projections. Therefore, when the safety razor is viewed from above, the upper and lower projections are alternately arranged. As shown in FIGS. 2 and 4, the width and pitch of the cut groove 11 of the upper spacer and the cut groove 14 of the lower spacer are the same and overlap. Therefore, the long comb teeth 12 of the upper spacer and the short comb teeth 13 of the lower spacer overlap with the same width, and the upper spacer is overlapped.
The short comb teeth 13 and the long comb teeth 12 of the lower spacer overlap with the same width. Reference numeral 17 denotes each blade and space.
A through hole provided in the server, for inserting a columnar leg provided on the back surface of the top plate 7 to connect these components.

[0012]

The present invention is constructed as described above, and the tips of the comb teeth of the spacer are formed to have a narrow width, and the tips of the blades are on the upper side of the spacer. The projections are provided slightly forward, and the protruding tips of the comb teeth are provided with upward projections, and the projections stand upright in front of the blade edge.
Therefore, even if the whiskers are likely to be clogged between the comb teeth of the spacer and the blade body, the whiskers do not get in from the tip of the comb teeth due to the protrusion. In addition, since the comb teeth are formed on the spacer and the width of the tip is made smaller to provide an upward protrusion, and the protrusion is raised immediately before the blade edge, the center of a safety razor with three blades stacked. The edge of the blade can also be covered at intervals.

[Brief description of the drawings]

FIG. 1 is a perspective view of the present invention.

FIG. 2 is an exploded perspective view of the present invention.

FIG. 3 is a sectional view showing the relationship between three blades and a spacer.

FIG. 4 is a partial side view of FIG. 3 viewed from the left side.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Upper blade body 2 Middle blade body 3 Lower blade body 4 Upper spacer 5 Lower spacer 6 Blade base 7 Top plate 8 Blade edge 9 Blade edge 10 Blade edge 11 Cut groove 12 Comb tooth 13
Comb tooth 14 Cut groove 15 Projection 16 Base 17 Through hole

Claims (1)

[Claims] 1. A safety razor having a plurality of blade bodies formed of a rectangular thin metal plate, wherein a sharp edge is formed at a front edge of each blade body so that the blade edges are parallel to each other. The blades are mounted on top of each other, and the blade edge of the upper blade body is slightly retracted from the blade edge of the lower blade body, and the interval between the blade bodies is constant. There is a spacer to keep it,
The spacer is divided into a plurality of comb teeth by providing a plurality of cut grooves from its front end edge toward its rear end, and at least a part of the comb teeth has a width at its tips. Is formed narrow and its tip protrudes slightly forward of the blade edge of the blade body above the spacer, and the protruding tip of the comb tooth is provided with an upward projection, and the projection is the blade edge. Safety razor characterized by standing up just before