JPS6019265B2 - Reciprocating electric razor blade structure - Google Patents

Description

【発明の詳細な説明】 本発明は往復式電気かみそりの刃の構造に関し、その要
旨とするところは、かまぼこ型に屈曲した平板状の外刃
１に内刃２の往復摺動万向に平行な凹の屈曲条部４を設
け、内刃２に屈曲条部４に対応して凹欠状の対応部５を
設け、凹の屈曲条部４から外刃１の屈曲条部４以外の部
分である平面部９に到るスリット状刃孔６群を外刃１に
設け、屈曲条部４の中央底部付近においてはスＩＪット
状刃孔６の縁に切刃１１を設けず、内外刃２，１間の隙
間量を小さくし、屈曲条部４の両側部付近においてはス
リット状刃孔６の縁に切刃１１を設けて内外刃２，１間
の隙間基を大きくして成ることを特徴とする往復式電気
かみそりの刃の構造に係るものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the structure of a reciprocating electric shaver blade. A concave bent strip 4 is provided, a concave corresponding portion 5 is provided on the inner cutter 2 corresponding to the bent strip 4, and a portion of the outer cutter 1 other than the bent strip 4 is provided from the concave bent strip 4. The outer cutter 1 has a group of 6 slit-shaped cutting holes that reach the plane part 9, and the cutting edge 11 is not provided at the edge of the slit-shaped cutting hole 6 near the center bottom of the bent strip 4, so that the inner and outer edges are The amount of gap between the blades 2 and 1 is reduced, and cutting blades 11 are provided at the edges of the slit-shaped blade hole 6 near both sides of the bent strip 4 to increase the gap between the inner and outer blades 2 and 1. This invention relates to the structure of a reciprocating electric razor blade characterized by the following.

第１０図に比較例として示すように、全てのスリット状
刃孔６の全周緑に切刃１１を設けてあり、しかも屈曲条
部４付近において内外刃２，１間の隙間量も小さいもの
にあっては、図示のように内刃２の案内部１２が屈曲条
部４の切刃１１によって削りとられて対応部５が広くな
り、内外刃２，１間の隙間量が全体に亘つて大きくなっ
て外刃１が変形し易くなり、内刃２と外刃１が衝突して
外刃１を破損するという問題がある。As shown in FIG. 10 as a comparative example, cutting edges 11 are provided around the entire circumference of all the slit-shaped blade holes 6, and the gap between the inner and outer blades 2 and 1 is small near the bent strip 4. As shown in the figure, the guide part 12 of the inner cutter 2 is scraped off by the cutting edge 11 of the bent strip part 4, so that the corresponding part 5 becomes wider, and the amount of clearance between the inner and outer cutters 2 and 1 is increased throughout the entire area. As a result, the outer cutter 1 tends to deform as the outer cutter 1 becomes larger and the inner cutter 2 collides with the outer cutter 1, causing damage to the outer cutter 1.

本発明は叙上の問題点に鑑みてなされたものであり、そ
の目的とするところは外刃が大きく変形しないように保
持でき、しかも切刃により対応部が削られず、内刃の案
内部等の摩耗を防止できると共に外刃の破損を防止でき
る往復式電気かみそりの刃の構造を提供するにある。The present invention was made in view of the above-mentioned problems, and its purpose is to hold the outer cutter so that it does not deform significantly, and to prevent the corresponding part from being scraped by the cutting edge, and to prevent the guide part of the inner cutter, etc. The purpose of the present invention is to provide a reciprocating electric shaver blade structure that can prevent wear and damage to the outer blade.

以下本発明を図示実施例に基き詳述する。The present invention will be described in detail below based on illustrated embodiments.

図中１は平板状の外刃であり、これをかま‘まこ型に屈
曲させた状態で電気かみそり本体３に取付ける。外刃１
には内刃２の往復摺動方向に平行に全長にわたって１本
乃至複数本の凹の屈曲条部４を設けてある。屈曲条部４
の側壁４ａから外刃１の屈曲条部４以外の部分である平
面部９にかけて多数のスリット状刃孔６を内刃２の往復
沼動方向に列設して設けてある。屈曲条部４の中央底部
付近（第４図のａの範囲）においては第４図に示すよう
にスリット状刃孔６の縁に髭切断用の切刃１１を設けず
、屈曲条部４の両側部付近（第４図のｂの範囲）におい
てはスリット状刃孔６の縁に切刃１１を設けてある。一
方、内刃２は摺動方向に直交して上緑がアーチ状となっ
たプレード１０を多数個列設して形成してあり、各プレ
ード１０１こは外刃１の凹の屈曲条部４に対応してコ字
状の溝１３を切欠してあり、この溝１３内に設けた合成
樹脂製等の案内部１２に更に屈曲条部４と対向して対応
部５を設けてあり、切刃１１のない屈曲条部４の中央底
部付近に対向する箇所においては対応部５は浅くして内
外刃１，２間の隙間量を小さくし、切刃１１のある屈曲
条部４の両側部付近に対向する箇所においては対応部５
を深くして内外刃１．２間の隙間量を大きくしてある。
このように屈曲条部４の底部付近において切刃１１を設
けず、内外刃２，１間の隙間量を小さくし、その両側部
において切刃１１を設けて内外刃２，１間の隙間量を大
きくしているために、外刃１は主としてその底部付近で
対応部５により保持され、外刃１が大きく変形した場合
は隙間量の大きな両側部付近でも受けられるようになっ
ている。しかも案内部１２と接する機会が多い屈曲条部
４の中央部付近に切刃１１がないので、案内部１２が切
刃１１により削りとられ、早く摩耗してしまうことが防
止されている。これにより案内部１２の摩耗は小さくな
り、摩耗により外刃１の変形が大きくなることを防止で
き、屈曲条部４を保護することができて外刃１の長寿命
を保証できるものである。外刃１の平面部９には小孔状
刃孔７と最孔状刃孔８とを設けてある。In the figure, reference numeral 1 denotes a flat outer cutter, which is bent into a semicylindrical shape and attached to the electric shaver main body 3. Outer blade 1
One or more concave bent strips 4 are provided over the entire length in parallel to the reciprocating sliding direction of the inner cutter 2. Bent striation 4
From the side wall 4a of the outer cutter 1 to the plane portion 9 of the outer cutter 1 other than the bent strip 4, a large number of slit-like cut holes 6 are arranged in rows in the direction of the reciprocating movement of the inner cutter 2. Near the center bottom of the bent strip 4 (range a in FIG. 4), as shown in FIG. A cutting blade 11 is provided at the edge of the slit-shaped blade hole 6 near both sides (range b in FIG. 4). On the other hand, the inner cutter 2 is formed by arranging a large number of blades 10 which are perpendicular to the sliding direction and whose top green is arched. A U-shaped groove 13 is cut out to correspond to the groove 13, and a guide part 12 made of synthetic resin or the like provided in this groove 13 is further provided with a corresponding part 5 facing the bent strip part 4. The corresponding portion 5 is made shallower in the area facing the central bottom of the bent strip 4 without the blade 11 to reduce the amount of gap between the inner and outer blades 1 and 2, and Corresponding part 5 at the location facing the vicinity
is deepened to increase the amount of clearance between the inner and outer cutters 1 and 2.
In this way, the cutting edge 11 is not provided near the bottom of the bent strip 4 to reduce the gap between the inner and outer cutters 2 and 1, and the cutting edge 11 is provided on both sides of the cutter to reduce the gap between the inner and outer cutters 2 and 1. Since the outer cutter 1 is made large, the outer cutter 1 is mainly held by the corresponding part 5 near its bottom, and if the outer cutter 1 is deformed significantly, it can be received near both sides where the gap is large. Moreover, since there is no cutting edge 11 near the center of the bent strip 4 which has many chances of coming into contact with the guide section 12, the guide section 12 is prevented from being scraped off by the cutting edge 11 and worn out quickly. This reduces wear on the guide portion 12, prevents deformation of the outer cutter 1 from increasing due to wear, protects the bent strip 4, and ensures a long life of the outer cutter 1. A small hole-like hole 7 and a most-hole-like hole 8 are provided in the flat surface 9 of the outer cutter 1.

これらの小孔状刃孔７及び最孔状刃孔８は共に一群とし
て形成してあって、屈曲条部４に設けたスリット状刃孔
６群と小孔状刃孔７群と長孔状刃孔８群は、内刃２の往
復摺動方向と直交する方向に区画して配直してある。第
３図に示す実施例では、内刃２の往復摺敷方向と直交す
る方向において、中央に屈曲条部４とこれに付随するス
リット状刃孔６群を、両側に４・孔状刃孔７群を、その
両側に長孔状刃孔８群をそしてその更に両側に小孔状刃
孔７群を配置した例であり、第８図に示示す実施例は一
側から順に最孔状刃孔８群、屈曲条部４とスリット状刃
孔６群、小孔状刃孔７群、そして長孔状刃孔８群を配直
した例であり、また第９図に示す実施例は中央に小孔状
刃孔７群、その両側に屈曲条部４とスリット状刃孔６群
、その両側に長孔状刃孔８群を配置した例である。往復
式電気かみそりは、その使用時には肌に押圧して内刃の
摺動万向と直交する方向に動かされ、髭は外刃１の上を
内刃２の摺動方向を直交方向へ移動してゆく。These small hole-like blade holes 7 and the most hole-like blade holes 8 are both formed as a group, and the slit-like blade holes 6 group, the small hole-like blade hole 7 group, and the elongated hole-like hole are formed in the bent strip 4. The 8 groups of blade holes are divided and rearranged in a direction perpendicular to the reciprocating sliding direction of the inner blade 2. In the embodiment shown in FIG. 3, in the direction perpendicular to the reciprocating sliding direction of the inner cutter 2, a bent strip 4 and a group of 6 slit-shaped cutting holes attached thereto are provided at the center, and four hole-shaped cutting holes are provided on both sides. This is an example in which 7 groups of long holes are arranged on both sides, and 7 groups of small holes are arranged on both sides of the 7 groups, and the embodiment shown in FIG. This is an example in which the arrangement of 8 groups of blade holes, the bent strip 4, 6 groups of slit-shaped blade holes, 7 groups of small-hole-shaped blade holes, and 8 groups of long-hole-shaped blade holes, and the embodiment shown in FIG. This is an example in which 7 groups of small hole-shaped blade holes are arranged in the center, bent strips 4 and 6 groups of slit-shaped blade holes are arranged on both sides thereof, and 8 groups of long hole-shaped blade holes are arranged on both sides. When using a reciprocating electric razor, the shaver is pressed against the skin and moved in a direction perpendicular to the sliding direction of the inner blade 1, and the beard moves on the outer blade 1 in a direction perpendicular to the sliding direction of the inner blade 2. I'm going to go.

小孔状刃孔７においては長い髭を導入することはできな
いものの、短い髭や長孔状刃孔８及びスリット状刃孔６
において短く切断することのできなかった髭をとらえて
内刃２との間でより短く切断して剃り上げる。長孔状刃
孔８では小孔状刃孔７に導入できなかった長い髭を導入
してこれを切断する。屈曲条部４から平面部９にかけて
のスリット状刃孔６は、屈曲条部４によって外刃１面に
接していない所の肌を伸ばして長い髭やくせのある髭を
起こしてこれをスリット状刃孔６に導入するのである。
屈曲条部４の中央底部付近には切刃１１がないが、もと
もとこの部分は切断作用に寄与しない部分であり、スリ
ット状刃孔６による切断作用は屈曲条部４の両側部付近
における切刃１１によって充分に行なわれるものである
。本発明は叙述のような構成を有し、屈曲条部の中央底
部付近においてはスリット状刃孔の縁に切刃を設けず、
内外刃間の隙間量を小さくし、屈曲条部の両側部付近に
おいてはスリット状刃孔の縁に切刃を設けて内外刃間の
隙間量を大きくしてあるから、隙間量の小さな屈曲条部
の中央底部付近において外刃が保持され、外刃が大きく
変形した場合には隙間量の大きな屈曲条部の両側部付近
でも外刃が保持されるものであり、また対応部と接する
機会の多い屈曲条部の中央底部付近に切刃がないので対
応部が切刃に削りとられて早く摩耗してしまうことを防
止できる利点がある。Although long whiskers cannot be introduced into the small-hole-shaped blade hole 7, short whiskers, long-hole-shaped blade holes 8, and slit-shaped blade holes 6 can be introduced.
The beard that could not be cut short is caught and cut shorter between the inner blade 2 and shaved. The long hairs that could not be introduced into the small hole-like blade hole 7 are introduced into the long-hole-like blade hole 8 and cut. The slit-shaped blade hole 6 from the bent strip 4 to the flat surface 9 stretches the skin in the area that is not in contact with the outer blade 1 surface by the bent strip 4 to raise a long beard or curly beard. It is introduced into the blade hole 6.
Although there is no cutting edge 11 near the center bottom of the bent strip 4, this part originally does not contribute to the cutting action, and the cutting action by the slit-shaped blade hole 6 is caused by the cutting edge near both sides of the bent strip 4. 11 is sufficient. The present invention has the configuration as described above, and there is no cutting edge provided at the edge of the slit-shaped blade hole near the center bottom of the bent strip.
The amount of clearance between the inner and outer blades is reduced, and cutting edges are provided on the edges of the slit-shaped hole near both sides of the bent strip to increase the amount of clearance between the inner and outer cutters. The outer cutter is held near the center bottom of the part, and if the outer cutter is significantly deformed, it is also held near both sides of the bent strip where there is a large gap, and there is no opportunity for contact with the corresponding part. Since there is no cutting edge near the center bottom of the many curved stripes, there is an advantage that the corresponding portion can be prevented from being scraped off by the cutting edge and worn out quickly.

しかもこれにより対応部の摩耗は小さくなり、摩耗によ
り外刃の変形が大きくなることを防止でき、屈曲条部を
保護できて外刃を長寿命にすることができる利点がある
。Furthermore, this has the advantage that the wear of the corresponding portion is reduced, the deformation of the outer cutter can be prevented from becoming large due to wear, the bent strip can be protected, and the life of the outer cutter can be extended.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明の一実施例を示す一部切欠側面図、第２
図ａ，ｂは外刃と内刃の斜視図、第３図ａ，ｂは外刃の
正面図及び側面図、第４図は同上の外刃と内刃の装着時
の断面図、第５図は外刃のスリット状刃孔を示す平面図
、第６図は第５図のＸ−Ｘ断面図、第７図は第５図のＹ
−Ｙ断面図、第８図及び第９図は夫々外刃の他例を示す
平面図、第１０図は比較例を示す断面図である。 １・・・・・・外刃、２・・・・・・内刃、４・・・・
・・屈曲条部、５・・・・・・対応部、６・・・・・・
スリット状刃孔、９・・・・・・平面部、１１・・・・
・・切刃。 第１図 第２図 第３図 第４図 第５図 第６図 第７図 第８図 第９図 第ー０図FIG. 1 is a partially cutaway side view showing one embodiment of the present invention, and FIG.
Figures a and b are perspective views of the outer cutter and inner cutter, Figures 3 a and b are front and side views of the outer cutter, Figure 4 is a sectional view of the same outer and inner cutters as shown above, and Figure 5. The figure is a plan view showing the slit-shaped cutter hole of the outer cutter, Figure 6 is a sectional view taken along line XX in Figure 5, and Figure 7 is a Y-Y in Figure 5.
-Y sectional view, FIGS. 8 and 9 are plan views showing other examples of the outer cutter, respectively, and FIG. 10 is a sectional view showing a comparative example. 1...Outer blade, 2...Inner blade, 4...
...Bending section, 5... Corresponding section, 6...
Slit-shaped blade hole, 9... Flat part, 11...
...Cutting blade. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure-0

Claims (1)

【特許請求の範囲】[Claims] １ かまぼこ型に屈曲した平板状の外刃に内刃の往復摺
動方向に平行な凹の屈曲条部を設け、内刃に屈曲条部に
対応して凹欠状の対応部を設け、凹の屈曲条部から外刃
の屈曲条部以外の部分である平面部に到るスリツト状刃
孔群を外力に設け、屈曲条部の中央底部付近においては
スリツト状刃孔の縁に切刃を設けず、内外刃間の隙間量
を小さくし、屈曲条部の両側部付近においては、スリツ
ト状刃孔の縁に切刃を設けて内外刃間の隙間量を大きく
して成ることを特徴とする往復式電気かみそりの刃の構
造。1. A concave bent strip parallel to the reciprocating sliding direction of the inner cutter is provided on the flat outer cutter bent in a semicylindrical shape, and a concave notched corresponding portion is provided on the inner cutter to correspond to the bent strip. A group of slit-shaped blade holes extending from the bent strip of the outer cutter to the plane part other than the bent strip of the outer cutter is provided as an external force, and a cutting edge is attached to the edge of the slit-shaped cut hole near the center bottom of the bent strip. The cutting edge is not provided, but the amount of gap between the inner and outer blades is made small, and the amount of gap between the inner and outer cutters is increased by providing cutting edges on the edges of the slit-shaped cutting holes near both sides of the bent strip. The structure of the reciprocating electric razor blade.