JPS5937987B2 - Reciprocating electric razor blade structure - Google Patents
Reciprocating electric razor blade structureInfo
- Publication number
- JPS5937987B2 JPS5937987B2 JP7092780A JP7092780A JPS5937987B2 JP S5937987 B2 JPS5937987 B2 JP S5937987B2 JP 7092780 A JP7092780 A JP 7092780A JP 7092780 A JP7092780 A JP 7092780A JP S5937987 B2 JPS5937987 B2 JP S5937987B2
- Authority
- JP
- Japan
- Prior art keywords
- blade
- slit
- cutter
- bent
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Dry Shavers And Clippers (AREA)
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するもので
ある。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the structure of a reciprocating electric shaver blade.
従来、上記のような往復式電気かみそりの刃の構造は、
第1図a、bに示すように外刃1′の凹又は凸の屈曲条
部4′から外刃1′の平面部9′に到るスリット状刃孔
群6′と平面部グに設けた刃孔群7′との境界部分A′
は、内刃の往復摺動方向にほぼ平行となる直線状に形成
され、剛性が大きいものとなっていた。Conventionally, the structure of reciprocating electric razor blades as described above is
As shown in FIGS. 1a and 1b, the slit-like cutting hole group 6' extending from the concave or convex curved strip 4' of the outer cutter 1' to the flat part 9' of the outer cutter 1' and the flat part groove are provided. The boundary part A' with the blade hole group 7'
is formed in a straight line substantially parallel to the reciprocating sliding direction of the inner cutter, and has high rigidity.
このため外刃1′をかまぼこ型に屈曲させた場合、境界
部分Rが他の部分に比べて屈曲する度合が少なくほぼ平
板状となり、したがって境界部分A′近傍において第4
図に示すように、外刃1′と内刃2′との間に隙間δが
発生し、切味が悪くなるという欠点があった。Therefore, when the outer cutter 1' is bent into a semicylindrical shape, the boundary portion R is less bent than other portions and becomes almost flat, so that the fourth edge is formed near the boundary portion A'.
As shown in the figure, a gap δ is generated between the outer cutter 1' and the inner cutter 2', resulting in poor cutting quality.
かかる隙間δが発生する状態を図に従って詳述する。The state in which such a gap δ occurs will be explained in detail with reference to the drawings.
第2図に示すように、外刃1′の屈曲条部4′の近傍部
は、内刃1により仮想線で示す位置から実線で示す位置
に押し上げられるのであり、このような内刃2′と外刃
1′との干渉式γは、平面部9′におけるものより太き
(なる。As shown in FIG. 2, the portion of the outer cutter 1' near the bent strip 4' is pushed up by the inner cutter 1 from the position shown by the imaginary line to the position shown by the solid line. The interference equation γ between the outer cutter 1' and the outer cutter 1' is thicker than that at the flat portion 9'.
屈曲条部4′の近傍は、内刃2により強く干渉されるの
で、外刃強度を確保するため、屈曲条部4′近傍部を予
めその剛性を大にしである。Since the vicinity of the bent strip 4' is strongly interfered with by the inner cutter 2, the rigidity of the portion near the bent strip 4' is increased in advance in order to ensure the strength of the outer cutter.
又、屈曲条件4′を設けたため、この近傍の剛性が増す
。Furthermore, since the bending condition 4' is provided, the rigidity in this vicinity increases.
そして剛性が大きな屈曲条部4′の近傍よりも境界部分
A′の剛性が犬となるのである。The rigidity of the boundary portion A' is greater than that of the vicinity of the bent strip 4', which has greater rigidity.
つまり、曲げ剛性の大きさの順位は、境界部分A′、屈
曲条部4′そして平面部9′の順になるのである。In other words, the order of bending rigidity is the boundary portion A', the bent strip portion 4', and the flat portion 9'.
このために、第3図に示すように、屈曲条部4′近傍、
境界部分A′そして平面部9′の各々の曲率半径ρ1.
ρ2及びρ3は、ρ2〉ρ1〉ρ3の関係となる特にρ
2は極めて太き(、境界部分A′はほぼ平面状を呈する
。For this purpose, as shown in FIG. 3, near the bent strip 4',
The radius of curvature ρ1 of each of the boundary portion A' and the plane portion 9'.
ρ2 and ρ3 have the relationship of ρ2〉ρ1〉ρ3, especially ρ
2 is extremely thick (the boundary portion A' is almost flat).
しかして内刃2′と外刃1′との間には、第4図に示す
ように、境界部分A′の近傍において大きな隙間δが発
生し、この箇所における切味が悪くなるのである。As shown in FIG. 4, a large gap δ is generated near the boundary portion A' between the inner cutter 2' and the outer cutter 1', resulting in poor cutting quality at this location.
本発明はこのような従来欠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、屈曲条部から平面部に到
るスリット状刃孔群と平面部の刃孔群との境界部分を内
刃の往復摺動方向に対してジグザグ状に形成することで
、内刃の往復摺動方向に長い境界部分に沿った剛性を小
さくでき、このことにより、内刃と外刃との密着度を向
上でき、切味を向上させるとともに内刃、外刃の局部的
な干渉を低減でき、騒音を抑制でき、内刃、外刃の寿命
を延ばすことができる往復式電気かみそりの刃の構造を
提供することにある。The present invention has been made in view of these conventional drawbacks, and its purpose is to eliminate the boundary between the slit-shaped blade hole group extending from the bent strip portion to the flat portion and the blade hole group in the flat portion. By forming the inner cutter in a zigzag shape in the reciprocating sliding direction, it is possible to reduce the rigidity along the long boundary part in the reciprocating sliding direction of the inner cutter, which improves the degree of adhesion between the inner cutter and the outer cutter. We have developed a reciprocating electric razor blade structure that improves sharpness, reduces local interference between the inner and outer cutters, suppresses noise, and extends the life of the inner and outer cutters. It is about providing.
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.
1は平板状の外刃であり、これをかまぼこ型に屈曲させ
た状態で電気かみそり本体3に取付ける。Reference numeral 1 denotes a flat outer cutter, which is bent into a semicylindrical shape and attached to the electric shaver main body 3.
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本乃至複数本の屈曲条部4を設けである。The outer cutter 1 is provided with one or more bent stripes 4 over its entire length in parallel to the reciprocating sliding direction of the inner cutter 2.
この屈曲条部4は凹でも凸でもよい。This bent strip 4 may be concave or convex.
第11図は凸の場合を示し、他の図面では全て凹の場合
を示している。FIG. 11 shows a convex case, and all other drawings show a concave case.
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にかげてスリット状刃孔6を内刃2の往復摺動方
向に列設して設けである。Slit-shaped blade holes 6 are arranged in a row in the reciprocating sliding direction of the inner cutter 2 extending from the bent strip 4 to a flat portion 9 that is a portion of the outer cutter 1 other than the bent strip 4.
一方、内刃2は摺動方向に直交して上級がアーチ状とな
ったブレード10を多数個列設して形成してあり、各ブ
レード10には外刃1の凹又は凸の屈曲条部4に対応し
て凹欠状又は凸起状とした対応部5を設けてあり、屈曲
条部4が凹の場合対応部5は凹欠状となって凹欠状の対
応部5内に屈曲条部4が位置し、屈曲条部4が凸の場合
対応部5は凸起状となって凸の屈曲条部4内に凸起状の
対応部5が位置するものである。On the other hand, the inner cutter 2 is formed by arranging a large number of blades 10 that are perpendicular to the sliding direction and each of which has an arch shape at the upper end. 4, a corresponding part 5 is provided in a concave or convex shape, and when the bent strip part 4 is concave, the corresponding part 5 becomes a concave part and is bent into the concave part 5. When the striped portion 4 is located and the bent striped portion 4 is convex, the corresponding portion 5 has a convex shape, and the corresponding portion 5 having a convex shape is located within the convex bent striped portion 4.
外刃1の平面部9には小孔状刃孔7aと長孔状刃孔8と
から成る刃孔群7を設げである。The flat part 9 of the outer cutter 1 is provided with a hole group 7 consisting of a small hole 7a and a long hole 8.
これらの小孔状刃孔7a及び長孔状刃孔8は共に一部と
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7a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置しである
。These small hole-like blade holes 7a and long hole-like blade holes 8 are both formed as a part, and the slit-like blade holes 6 group, the small hole-like blade holes 7a group, and the long holes provided in the bent strip 4 are connected to each other. The 8 groups of shaped blade holes are the inner blade 2
It is divided and arranged in a direction perpendicular to the direction of reciprocating sliding.
第7図に示す実施例では、内刃2の往復摺動方向と直交
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、両側に小孔状刃孔7a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/」9
獣刃孔7a群を配置した例である。In the embodiment shown in FIG. 7, in the direction orthogonal to the reciprocating sliding direction of the inner cutter 2, a bent strip 4 and a group of 6 slit-shaped blade holes attached thereto are provided at the center, and small hole-shaped blade holes 7a are provided on both sides. 8 groups of elongated blade holes on both sides of the group, and 8 groups of elongated blade holes on both sides of the group, and further on both sides / 9
This is an example in which a group of blade holes 7a are arranged.
往復式電気かみそりは、その使用時には内刃2の摺動方
向と直交する方向に動かされる。When the reciprocating electric shaver is used, it is moved in a direction perpendicular to the sliding direction of the inner cutters 2.
従って肌の1点について考えると、この1点に接触する
外刃10部分は内刃2の摺動方向と直交する方向で推移
してゆく。Therefore, considering one point on the skin, the portion of the outer cutter 10 that contacts this one point moves in a direction perpendicular to the sliding direction of the inner cutter 2.
長孔状刃孔8から小孔状刃孔7a、スリット状刃孔6と
いうように変るわけである。The blade holes change from a long hole-like blade hole 8 to a small hole-like blade hole 7a, and then to a slit-like blade hole 6.
小孔状刃孔7a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どの間でより短く切断して剃り上げる。Although long whiskers cannot be introduced into the small hole-shaped blade hole 7a, short whiskers or whiskers that could not be cut short in the long-hole-shaped blade hole 8 and the slit-shaped blade hole 6 can be caught and cut into the inner blade 2. Cut it shorter in between and shave it.
長孔状刃孔8では小孔状刃孔7aに導入できなかった長
い髭を導入してこれを切断する。In the elongated blade hole 8, long whiskers that could not be introduced into the small blade hole 7a are introduced and cut.
屈曲条部4から平面部9にかげてのスリット状刃孔6は
、例えば屈曲条部4が凹の場合、第12図に示すように
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11やくせのある髭11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。For example, when the bent strip 4 is concave, the slit-shaped cutter hole 6 extending from the bent strip 4 to the flat surface 9 is located at a place where the bent strip 4 does not touch the surface of the outer cutter 1, as shown in FIG. The skin of the blade is stretched to raise a long beard 11 or a curly beard 11, and this is introduced into the slit-shaped blade hole 6.
第12図は電気かみそりを動かすにつれて、髭11が右
側から順次左側へと移動し、内刃2とで切断される状態
を示している。FIG. 12 shows a state in which the beard 11 sequentially moves from the right side to the left side as the electric shaver is moved, and is cut by the inner blade 2.
ここでスリット状刃孔6は平面部9においては屈曲条部
4に対して傾斜させてあって、内刃2のブレード10に
対してはさみ角をもたせて切味の向上と、外刃1と内刃
2との干渉防止を図っている。Here, the slit-shaped cutting hole 6 is inclined with respect to the bent strip 4 in the flat part 9, and has a scissoring angle with respect to the blade 10 of the inner cutter 2, thereby improving cutting quality and improving the cutting quality of the outer cutter 1. This is intended to prevent interference with the inner cutter 2.
屈曲条部4と平面部9とのなす角θは鈍角とするのが外
刃1と内刃2の密着度の確保の点で好ましい。It is preferable that the angle θ formed between the bent strip portion 4 and the flat portion 9 be an obtuse angle in order to ensure the degree of adhesion between the outer cutter 1 and the inner cutter 2.
第7図に示す実施例にあってはスリット状刃孔6を長ス
リツト状刃孔6aと、内刃2の摺動方向と略直交する方
向であり且つ長スリツト状刃孔6aとほぼ平行でやN短
かい短スリット状刃孔6bとの二重で形成し、長スリツ
ト状刃孔6aと短スリット状刃孔6bとを内刃2の摺動
方向に交互に配置し、長スリツト状刃孔6aの平面部側
の端部と短スリット状刃孔6bの平面部側の端部とを互
いに反対側へ屈曲させである。In the embodiment shown in FIG. 7, the slit-shaped blade hole 6 is arranged in a direction substantially perpendicular to the sliding direction of the inner cutter 2 and substantially parallel to the long slit-shaped blade hole 6a. The long slit-shaped blade holes 6a and the short slit-shaped blade holes 6b are arranged alternately in the sliding direction of the inner cutter 2, and the long slit-shaped blade holes 6a and the short slit-shaped blade holes 6b are arranged alternately in the sliding direction of the inner cutter 2. The end of the hole 6a on the flat side and the end of the short slit-shaped blade hole 6b on the flat side are bent to opposite sides.
そして長スリツト状刃孔6aと短スリット状刃孔6b及
び小孔状刃孔7aとの間は、つまり、スリット状刃孔6
と刃孔群7との境界部分Aは、第7図とこれを拡大した
第10図aに示すように、内刃摺動方向に対してジグザ
グ状にしである。And between the long slit-shaped blade hole 6a, the short slit-shaped blade hole 6b, and the small hole-shaped blade hole 7a, that is, the slit-shaped blade hole 6
The boundary portion A between the blade hole group 7 and the blade hole group 7 is in a zigzag shape with respect to the inner blade sliding direction, as shown in FIG. 7 and an enlarged view of FIG.
このように境界部分Aは内刃2の往復摺動方向に対して
ジグザグ状に形成されているので内刃2の往復摺動力向
に長い境界部分Aの剛性を境界部分Aが直線状となって
いるものに比べて小さくすることができるのである。In this way, the boundary part A is formed in a zigzag shape with respect to the reciprocating sliding direction of the inner cutter 2, so that the rigidity of the long boundary part A in the reciprocating sliding direction of the inner cutter 2 is adjusted so that the boundary part A is linear. It can be made smaller than what is currently available.
このことは、外刃1をかまぼこ型に屈曲させた場合、境
界部分A及びこれの近傍の曲率半径を小さくでき、外刃
1と内刃2との密着度を向上できるのである。This means that when the outer cutter 1 is bent into a semicylindrical shape, the radius of curvature of the boundary portion A and the vicinity thereof can be reduced, and the degree of adhesion between the outer cutter 1 and the inner cutter 2 can be improved.
第13図は境界部分Aの他の実施例を示し、内刃摺動方
向においてサインカーブ状にしたものである。FIG. 13 shows another embodiment of the boundary portion A, which has a sine curve shape in the sliding direction of the inner blade.
かくて本発明にあっては、かまぼこ型に屈曲自在な外刃
に内刃の往復摺動方向に平行に屈曲条部を設け、屈曲条
部から平面部に到るスリット状刃孔を外刃に設けたこと
により、長い髭やくせ髭を屈曲条部とスリット状刃孔と
で効率よく導入切断することができるものでありながら
、ことに本発明にあっては、屈曲条部から平面部に到る
スリツト状刃孔群と平面部の刃孔群との境界部分を内刃
の往復摺動方向に対してジグザグ状に形成したので、内
刃の往復摺動力向に長い境界部分の剛性を内刃の往復摺
動方向に沿う直線状にした従来のものに比べて小さくす
ることができ、このことにより、境界部分及びこれの近
傍の曲率半径を小さくでき、内刃と外刃との密着度を向
上でき、切味を向上させることができるものであり、加
えて局部的な内刃と外刃との干渉を低減でき、局部的な
摺接騒音、及び偏摩耗を抑制でき、長期にわたって安定
的な使用ができるものである。Thus, in the present invention, the outer cutter, which can be bent into a semicylindrical shape, is provided with a bent strip in parallel to the reciprocating sliding direction of the inner cutter, and the slit-shaped cutter hole extending from the bent strip to the flat surface is formed in the outer cutter. Although long beards and curly beards can be introduced and cut efficiently using the bent strips and the slit-like blade holes, the present invention particularly provides a method for cutting long beards and curly beards from the bent strips to the flat section. The boundary between the slit-shaped blade holes and the flat blade hole group is formed in a zigzag shape with respect to the reciprocating sliding direction of the inner cutter, so that the rigidity of the long boundary portion in the reciprocating sliding direction of the inner cutter is improved. can be made smaller than the conventional one, which has a straight line along the reciprocating sliding direction of the inner cutter, and as a result, the radius of curvature of the boundary part and the vicinity thereof can be made smaller, and the radius of curvature between the inner cutter and the outer cutter can be made smaller. It can improve adhesion and cutting quality, and in addition, it can reduce local interference between the inner and outer cutters, suppress local sliding noise and uneven wear, and last for a long time. It can be used stably for a long time.
しかも、スリット状刃孔の平面部側の端部な交互に反対
側へ屈曲させてスリット状刃孔群と平面部の刃孔群との
境界部分を内刃の往復摺動方向に対してジグザグ状に形
成しであるから、あちらこちら向いて寝ている長い髭を
スリット状刃孔内にもれなく導入することができ、長い
髭の刈り残しがないという効果を有するものである。In addition, the ends of the slit-shaped blade holes on the flat side are bent alternately to the opposite side, so that the boundary between the slit-shaped blade holes and the blade holes in the flat part is zigzag in the reciprocating sliding direction of the inner cutter. Since it is formed in a shape, it is possible to introduce long beards lying facing each other into the slit-shaped blade hole without leaking, and it has the effect that there is no uncut part of the long beards.
第1図a、bは従来例の外刃の正面図及び側面図、第2
図は同上の作用を示す一部破断した側面図、第3図は同
上の曲率半径を示す説明図、第4図は同上の部分拡大断
面図、第5図は本発明の一実施例の一部切欠側面図、第
6図a 、bは同上の外刃と内刃の斜視図、第1図は同
上の外刃の正面図、第8図は同上の縦断面図、第9図は
同上の曲率半径を示す説明図、第10図a、bは第7図
の部分拡大正面図、断面図、第11図は同上の凸の屈曲
条部の一例を示す断面図、第12図は同上の作用を示す
拡大縦断面図、第13図は同上の境界部分の他の実施例
を示す朽略正面図であって、1は外刃、2は内刃、4は
屈曲条部、5は対応部、6はスリット状刃孔、1は刃孔
群、9は平面部、Aは境界部分である。Figures 1a and b are front and side views of the conventional outer cutter;
The figure is a partially broken side view showing the effect of the above, Figure 3 is an explanatory diagram showing the radius of curvature of the same, Figure 4 is a partially enlarged sectional view of the same, and Figure 5 is an example of an embodiment of the present invention. 6a and b are perspective views of the outer cutter and inner cutter as above, Fig. 1 is a front view of the outer cutter as above, Fig. 8 is a vertical sectional view as above, and Fig. 9 is as above. 10a and 10b are partially enlarged front views and sectional views of FIG. 7, FIG. 11 is a sectional view showing an example of the convex bent strip of the same as the above, and FIG. 12 is the same as the above. 13 is a schematic front view showing another embodiment of the boundary portion of the same, in which 1 is an outer cutter, 2 is an inner cutter, 4 is a bent strip, and 5 is a In the corresponding parts, 6 is a slit-shaped blade hole, 1 is a group of blade holes, 9 is a plane part, and A is a boundary part.
Claims (1)
摺動方向に平行な凹又は凸の屈曲条部を設け、凹又は凸
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
に到るスリット状刃孔群を外刃に設けた往復式電気かみ
そりの刃の構造において、スリット状刃孔の平面部側の
端部を交互に反対側へ屈曲させてスリット状刃孔群と平
面部の刃孔群との境界部分を内刃の往復摺動方向に対し
てジグザグ状に形成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 or convex bent line parallel to the reciprocating sliding direction of the inner cutter is provided on a flat plate-shaped outer cutter that can be bent freely in a semicylindrical shape, and a portion of the outer cutter other than the bent line is provided from the concave or convex bent line. In the structure of a reciprocating electric shaver blade in which the outer blade is provided with a group of slit-shaped blade holes that reach a plane part, the ends of the flat part side of the slit-shaped blade holes are alternately bent to the opposite side to form slit-shaped blade holes. A reciprocating electric shaver blade structure characterized in that a boundary between a group of blade holes and a group of blade holes in a plane part is formed in a zigzag shape with respect to the reciprocating sliding direction of an inner blade.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7092780A JPS5937987B2 (en) | 1980-05-27 | 1980-05-27 | Reciprocating electric razor blade structure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7092780A JPS5937987B2 (en) | 1980-05-27 | 1980-05-27 | Reciprocating electric razor blade structure |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56166877A JPS56166877A (en) | 1981-12-22 |
JPS5937987B2 true JPS5937987B2 (en) | 1984-09-13 |
Family
ID=13445624
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7092780A Expired JPS5937987B2 (en) | 1980-05-27 | 1980-05-27 | Reciprocating electric razor blade structure |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5937987B2 (en) |
-
1980
- 1980-05-27 JP JP7092780A patent/JPS5937987B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS56166877A (en) | 1981-12-22 |
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