JPS63203178A - Inner blade of reciprocating type electric razor - Google Patents
Inner blade of reciprocating type electric razorInfo
- Publication number
- JPS63203178A JPS63203178A JP3866787A JP3866787A JPS63203178A JP S63203178 A JPS63203178 A JP S63203178A JP 3866787 A JP3866787 A JP 3866787A JP 3866787 A JP3866787 A JP 3866787A JP S63203178 A JPS63203178 A JP S63203178A
- Authority
- JP
- Japan
- Prior art keywords
- blade
- blades
- support body
- cutter
- inner blade
- 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.)
- Pending
Links
- 239000000919 ceramic Substances 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000005520 cutting process Methods 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Dry Shavers And Clippers (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔技術分野〕
本発明は往復式電気かみそりの内刃に関するものである
。DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to an inner cutter of a reciprocating electric shaver.
一般の往復式電気かみそりの内刃は、例えば実開昭６０
−１５５４６６号公報に示すように、略半円状の内刃ブ
レードを複数列並設し、その両端部に合成樹脂製の支持
体を一体に形成して複数の内刃ブレードを連結しており
、前記内刃ブレードは一般に金属で形成されている。The inner blade of a general reciprocating electric shaver is, for example,
As shown in Publication No. 155466, a plurality of approximately semicircular inner blades are arranged in parallel in rows, and synthetic resin supports are integrally formed at both ends to connect the plurality of inner blades. , the inner blade is generally made of metal.
ところが、このものは内刃ブレードの両端部が支持体内
に埋設されているため、埋設部分において支持体が分断
され断面積が小さくなって内刃の剛性が小となり、髭剃
時に内刃に負荷が加わったときに支持体が変形して外刃
との密着性が悪（なり、剃味が低下する原因となってい
た。しかも、支持体は一つの金型で一体に形成されるも
のであるため、一定長さの切刃を有する内刃しか得られ
なかった。However, since both ends of the inner blade are buried in the support, the support is divided at the buried part, reducing the cross-sectional area and reducing the rigidity of the inner blade, which increases the load on the inner blade during shaving. When this happens, the support deforms, resulting in poor adhesion with the outer cutter and resulting in poor shaving quality.Furthermore, the support is integrally formed with a single mold. Therefore, only an inner cutter with a cutting edge of a certain length could be obtained.
また、内刃の剛性を向上させるため、実開昭６１−１１
２７８１号に示すように、内刃ブレードと支持体とをセ
ラミックで一体形成した内刃も提案されているが、この
ものは上記従来例と同様、任意の大きさの内刃を制作す
るのが困難であり、しかも支持体は断面円弧状で内刃ブ
レード間を全長にわたって閉塞しているため、髭屑が内
刃ブレード間に詰まる問題点があった。In addition, in order to improve the rigidity of the inner cutter,
As shown in No. 2781, an inner cutter in which the inner cutter blade and the support body are integrally formed of ceramic has been proposed, but like the above conventional example, this inner cutter can be manufactured to any size. Moreover, since the support body has an arcuate cross-section and closes the space between the inner blades over the entire length, there is a problem in that hair debris gets stuck between the inner blades.
本発明は上記問題点に鑑みてなしたもので、その目的と
するところは、内刃の剛性を向上するとともに内刃ブレ
ード間に髭屑が詰まることをなくし、併せて簡単に任意
の大きさの内刃が得られるようにした往復式電気かみそ
りの内刃を提供することにある。The present invention has been made in view of the above-mentioned problems.The purpose of the present invention is to improve the rigidity of the inner cutter, eliminate the clogging of beard debris between the inner cutter blades, and easily cut the inner cutter into any size. To provide an inner cutter for a reciprocating electric shaver which can obtain an inner cutter of 1.
以下本発明の第１の実施例を図面第１図乃至第５図に基
づき説明する。１は円弧状の内刃ブレードで、その両端
部には前記内刃ブレード１の板厚よりも大なる一対の支
持体２，２を備え、前記内刃ブレード１と支持体２とは
セラミックで一体形成し、支持体２同士を連結して内刃
ブレード１を複数列並設するようにし内刃を構成してい
る。前記支持体２には内刃ブレード並設方向に貫通する
孔３を形成し、前記孔３に連結棒４を挿通して支持体２
同士を連結しており、また支持体２の内刃ブレード１と
の連結側と反対面には凹溝５を形成し、剛性を低下する
ことなく軽量化をはかっている。また、第４図に示すよ
うに、内刃ブレード１は外周部の板厚（図中３寸法）を
内周部の板厚（図中す寸法）に比べて大とし、切刃エツ
ジを鋭角として切味性能を向上させるとともに、前記内
刃ブレード１と支持体２との連結部（図中Ｃ部）はＲ形
状として強度を向上させている。更に、第５図に示すよ
うに、内刃ブレード１の円弧を放物線形状にし、最も使
用頻度の大なる頂上部近傍に加わる負荷Ｐの上下方向分
力Ｐ１を半円弧状の内刃ブレードに比べて小さくし、内
刃ブレード１が変形し難くしている。A first embodiment of the present invention will be described below with reference to FIGS. 1 to 5 of the drawings. Reference numeral 1 denotes an arc-shaped inner blade, and a pair of supports 2, 2 having a thickness greater than the thickness of the inner blade 1 are provided at both ends thereof, and the inner blade 1 and the support 2 are made of ceramic. The inner blades are formed integrally, and the inner blades 1 are arranged in a plurality of rows by connecting the supports 2 to each other to form an inner blade. A hole 3 penetrating in the direction in which the inner blades are arranged side by side is formed in the support body 2, and a connecting rod 4 is inserted into the hole 3 to connect the support body 2.
A concave groove 5 is formed on the surface of the support body 2 opposite to the side connected to the inner cutter blade 1, thereby reducing the weight without reducing the rigidity. In addition, as shown in Fig. 4, the inner blade 1 has a thickness at the outer circumference (dimension 3 in the figure) that is larger than the thickness at the inner circumference (dimension 3 in the figure), and the cutting edge is set at an acute angle. In addition to improving the cutting performance, the connecting portion between the inner cutter blade 1 and the support body 2 (portion C in the figure) is rounded to improve strength. Furthermore, as shown in Fig. 5, the arc of the inner blade 1 is made into a parabolic shape, and the vertical component force P1 of the load P applied near the top, which is most frequently used, is compared to that of the inner blade with a semicircular arc shape. The inner cutter blade 1 is made smaller and less likely to deform.
次に、本発明の第２実施例を第６図及び第７図に基づき
説明する。この実施例は支持体２の内刃ブレード並設方
向一端面に凸部６を形成するとともに他端面に凹部７を
形成し、支持体２同士を凹凸係合して連結するのであっ
て、その他の構成は上記第１の実施例と同様である。Next, a second embodiment of the present invention will be described based on FIGS. 6 and 7. In this embodiment, a convex portion 6 is formed on one end surface of the support body 2 in the direction in which the inner blades are arranged side by side, and a recess portion 7 is formed on the other end surface, and the support bodies 2 are connected by engaging each other with the concave and convex portions. The configuration is the same as that of the first embodiment.
更に、本発明の第３の実施例を図面第８図乃至第１０図
に基づき説明する。この実施例は第８図及び第９図に示
すように、一対の支持部２．２間を連結する連結片８を
形成し°ておき、複数の内刃ブレード１を連結した後、
第１０図に示すように、前記連結片８を切除するのであ
り、その他の構成は上記第１の実施例と同様である。す
なわち、セラミックの射出成形による内刃の製造におい
ては、セラミックの粉末と有機材料とを適当量配合した
材料を射出成形し、その後脱脂、焼結するのであるが、
射出成形した直後のものは強度的に弱く、脱脂及び焼結
工程で変形や割れ等が発生する恐れがあり、これを上述
した連結片８で防止するようにしているのである。Furthermore, a third embodiment of the present invention will be explained based on FIGS. 8 to 10 of the drawings. In this embodiment, as shown in FIGS. 8 and 9, a connecting piece 8 connecting a pair of support parts 2.2 is formed, and after connecting a plurality of inner cutter blades 1,
As shown in FIG. 10, the connecting piece 8 is removed, and the rest of the structure is the same as that of the first embodiment. In other words, when manufacturing inner blades by ceramic injection molding, a material containing appropriate amounts of ceramic powder and organic material is injection molded, and then degreased and sintered.
Immediately after injection molding, the strength is weak and there is a risk that deformation or cracking may occur during the degreasing and sintering process, and this is prevented by the above-mentioned connecting piece 8.
尚、上記第１乃至第３の実施例では内刃ブレードを１個
づつ連結するようにしているが、本発明はこれに限定さ
れるものではなく、例えば２個あるいは３個を１組とし
て一体形成し、これを複数組連結して内刃を構成するも
のであっても本発明の要旨を逸脱するものではない。In the first to third embodiments described above, the inner blades are connected one by one, but the present invention is not limited to this. For example, two or three inner blades may be connected as a set. Even if the inner cutter is constructed by connecting a plurality of sets, this does not depart from the gist of the present invention.
以上の如く、本発明は、円弧状の内刃ブレードと前記内
刃ブレードの板厚よりも大なる支持体とをセラミックで
一体形成し、前記支持体同士を連結して前記内刃ブレー
ドを複数列並設するようにしたことを特徴とする往復式
電気かみそりの内刃であって、内刃ブレードと支持体と
をセラミックで一体形成しているので、軽量で且つ剛性
大なる内刃が得られ、また任意の数の内刃ブレードを連
結できるため、一つの金型で部品を作り、この部品の組
合あわせ数を変えることにより内刃の長さが自由に設定
でき、更に使用に際しては内刃ブレード間の隙間から髭
屑が落ちるので、従来例のように内刃ブレード間に髭屑
が詰まることもなくなるのである。As described above, the present invention includes integrally forming an arc-shaped inner blade and a support body larger than the plate thickness of the inner blade, and connecting the supports to each other to form a plurality of inner blades. The inner blades of a reciprocating electric shaver are characterized by being arranged in rows, and the inner blades and the support are integrally formed of ceramic, resulting in lightweight and highly rigid inner blades. In addition, since any number of inner blades can be connected, the length of the inner blade can be freely set by making a part with one mold and changing the number of parts combined. Since the beard debris falls from the gap between the blades, it is no longer possible for the beard debris to become clogged between the inner blades as in the conventional example.
第１図は本発明の第１実施例の組立前の単品斜視図、第
２図は同上の分解斜視図、第３図は同上の一部を断面し
た組立後の内刃の斜視図、第４図は同上の横断面図、第
５図は同上の縦断面図、第６図は第２の実施例の組立前
の単品斜視図、第７図は同上の一部を断面した組立後の
内刃斜視図、第８図は第３の実施例の組立前の単品斜視
図、第９図は同上の分解斜視図、第１０図は同上の一部
を断面した組立後の内刃斜視図である。
１−・内刃ブレード、２・−・支持体、３−・孔、４一
連結棒、５・・−凹溝、６−凸部、７−凹部。FIG. 1 is a perspective view of the first embodiment of the present invention before assembly; FIG. 2 is an exploded perspective view of the same; FIG. 3 is a partially sectional perspective view of the inner cutter after assembly; Figure 4 is a cross-sectional view of the same as above, Figure 5 is a longitudinal cross-sectional view of the same as above, Figure 6 is a perspective view of the second embodiment before assembly, and Figure 7 is a partially sectional view of the same as above after assembly. FIG. 8 is a perspective view of the third embodiment before assembly; FIG. 9 is an exploded perspective view of the same; FIG. 10 is a partially sectional perspective view of the inner cutter after assembly. It is. 1--Inner cutter blade, 2--Support body, 3--Hole, 4-connecting rod, 5--Concave groove, 6--Convex portion, 7--Concave portion.
Claims (1)
りも大なる支持体とをセラミックで一体形成し、前記支
持体同士を連結して前記内刃ブレードを複数列並設する
ようにしたことを特徴とする往復式電気かみそりの内刃
。 ２）内刃ブレード並設方向に貫通する孔を支持体に形成
し、前記孔に連結棒を挿通して支持体同士を連結したこ
とを特徴とする特許請求の範囲第１項記載の往復式電気
かみそりの内刃。 ３）支持体の内刃ブレード並設方向端部に支持体同士を
連結する凹凸係合部を形成したことを特徴とする特許請
求の範囲第１項記載の往復式電気かみそりの内刃。 ４）内刃ブレードの両端部に支持体を連結し、前記支持
体の内刃ブレードとの連結側と反対面に凹溝を形成した
ことを特徴とする特許請求の範囲第１項記載の往復式電
気かみそりの内刃。 ５）内刃ブレードの円弧を放物線形状としたことを特徴
とする特許請求の範囲第１項記載の往復式電気かみそり
の内刃。 ６）内刃ブレードの外周部の板厚を内周部の板厚よりも
大としたことを特徴とする特許請求の範囲第１項記載の
往復式電気かみそりの内刃。 ７）内刃ブレードと支持体との連結部をＲ形状としたこ
とを特徴とする特許請求の範囲第１項記載の往復式電気
かみそりの内刃。[Scope of Claims] 1) An arc-shaped inner blade and a support body having a thickness greater than the thickness of the inner blade are integrally formed using ceramic, and the support bodies are connected to each other to form a plurality of inner blades. The inner blades of a reciprocating electric razor are characterized by being arranged in rows. 2) A reciprocating type reciprocating type according to claim 1, characterized in that a hole penetrating in the direction in which the inner cutter blades are arranged side by side is formed in the support body, and a connecting rod is inserted into the hole to connect the supports to each other. The inner blade of an electric razor. 3) The inner blade of a reciprocating electric shaver according to claim 1, characterized in that a concave-convex engaging portion for connecting the supports to each other is formed at the end of the support in the direction in which the inner blades are arranged side by side. 4) A reciprocating machine according to claim 1, characterized in that a support body is connected to both ends of the inner blade, and a groove is formed on a surface of the support body opposite to the side connected to the inner blade. The inner blade of an electric razor. 5) The inner cutter of a reciprocating electric shaver according to claim 1, wherein the inner cutter blade has a parabolic arc. 6) The inner cutter of a reciprocating electric shaver according to claim 1, wherein the inner cutter blade has a thickness greater at the outer circumference than at the inner circumference. 7) The inner cutter of a reciprocating electric shaver according to claim 1, wherein the connecting portion between the inner cutter blade and the support body is rounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3866787A JPS63203178A (en) | 1987-02-20 | 1987-02-20 | Inner blade of reciprocating type electric razor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3866787A JPS63203178A (en) | 1987-02-20 | 1987-02-20 | Inner blade of reciprocating type electric razor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63203178A true JPS63203178A (en) | 1988-08-23 |
Family
ID=12531622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3866787A Pending JPS63203178A (en) | 1987-02-20 | 1987-02-20 | Inner blade of reciprocating type electric razor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63203178A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008526287A (en) * | 2005-01-03 | 2008-07-24 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Hair trimming device and cutter member assembly for such device |
-
1987
- 1987-02-20 JP JP3866787A patent/JPS63203178A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008526287A (en) * | 2005-01-03 | 2008-07-24 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Hair trimming device and cutter member assembly for such device |
| US9610695B2 (en) | 2005-01-03 | 2017-04-04 | Koninklijke Philips N.V. | Hair-clipping device and cutter-member assembly for such a device |
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