JP2740305B2 - Rotary electric razor - Google Patents
Rotary electric razorInfo
- Publication number
- JP2740305B2 JP2740305B2 JP30023089A JP30023089A JP2740305B2 JP 2740305 B2 JP2740305 B2 JP 2740305B2 JP 30023089 A JP30023089 A JP 30023089A JP 30023089 A JP30023089 A JP 30023089A JP 2740305 B2 JP2740305 B2 JP 2740305B2
- Authority
- JP
- Japan
- Prior art keywords
- blade
- rotary electric
- inner blade
- cutter
- electric shaver
- 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 - Lifetime
Links
Landscapes
- Dry Shavers And Clippers (AREA)
Description
【発明の詳細な説明】 （イ）産業上の利用分野 本発明は、コイル状に巻回された内刃を有するロータ
リ式電気かみそりに関するものである。The present invention relates to a rotary electric shaver having an inner blade wound in a coil shape.
（ロ）従来の技術 一般に、外刃に設けられている開孔部から挿入された
髭をできるだけ根元から剃るために、ひげそり時におい
て皮膚を外刃に押しつけた時に、内刃が外刃の内面に圧
接していることが望ましい。そのため、例えば特開昭57
-9485号公報に開示されているように、ロータリ式電気
かみそりの内刃が円筒形状に形成され、該内刃の全長に
わたって外刃の内面に均一に圧接しているものがある
が、この場合、内刃の全長にわたって外刃の内面に圧接
させることにより負荷の増大から、前記ロータリ式電気
かみそりに内蔵されているモータの内刃回転駆動力が低
下するという欠点があった。(B) Conventional technology Generally, in order to shave the beard inserted from the opening provided in the outer blade from the root as much as possible, when the skin is pressed against the outer blade during shaving, the inner blade is moved to the inner surface of the outer blade. It is desirable to be in pressure contact with. Therefore, for example, Japanese Patent Application Laid-Open
As disclosed in JP-A-9485, there is a rotary electric shaver in which the inner blade is formed in a cylindrical shape and is uniformly pressed against the inner surface of the outer blade over the entire length of the inner blade. However, there is a drawback that the inner blade rotation driving force of the motor built in the rotary electric shaver is reduced due to an increase in load due to the inner blade being pressed against the inner surface of the outer blade over the entire length of the inner blade.
（ハ）発明が解決しようとする課題 本発明は斯る点に鑑み成されたものであって、ひげそ
り時において皮膚を外刃に押しつけた時に、内刃が外刃
の内面に圧接した状態を保持すると同時に、ロータリ式
電気かみそりに内蔵されているモータの内刃回転駆動力
の低下を軽減しようとするものである。(C) Problems to be Solved by the Invention The present invention has been made in view of the above point, and has a state in which the inner blade is pressed against the inner surface of the outer blade when the skin is pressed against the outer blade during shaving. At the same time, it is intended to reduce the decrease in the rotational driving force of the inner blade of the motor incorporated in the rotary electric shaver.
（ニ）課題を解決するための手段 コイル状に巻回された内刃を有するロータリ式電気か
みそりにおいて、前記内刃は中央部の外径が両端部のそ
れよりも大である樽型形状に形成する。(D) Means for Solving the Problems In a rotary electric shaver having an inner blade wound in a coil shape, the inner blade has a barrel-shaped shape in which the outer diameter at the center is larger than that at both ends. Form.
（ホ）作用 通常、電気かみそりにより髭を剃る場合、該電気かみ
そりの上部に配設された外刃の中央付近で髭を剃る場合
が多い。従って、外刃と内刃の圧接状態は外刃の全長に
わたって保持される必要はなく、外刃の中央付近のみ圧
接状態を保持できればよい。(E) Action Usually, when shaving with an electric razor, the shaving is often performed near the center of the outer blade arranged above the electric razor. Therefore, the press-contact state between the outer cutter and the inner cutter does not need to be maintained over the entire length of the outer cutter, but only needs to be maintained near the center of the outer cutter.
本発明によれば、ロータリ式電気かみそりの内刃を中
央部の外径が両端部のそれよりも大である樽型形状に形
成しているので、前記内刃の外刃との圧接は中央付近の
みとなり、その結果、ロータリ式電気かみそりに内蔵さ
れているモータの内刃回転駆動力に対する負荷を軽減
し、前記駆動力の低下を抑制することができる。According to the present invention, since the inner blade of the rotary electric shaver is formed in a barrel shape in which the outer diameter at the center is larger than that at both ends, the inner blade is pressed against the outer blade at the center. As a result, the load on the inner blade rotational driving force of the motor built in the rotary electric shaver can be reduced, and the decrease in the driving force can be suppressed.
（ヘ）実施例 以下本発明の実施例を図面に基づき詳述する。第１図
は本発明を用いたロータリ式電気かみそりの要部断面
図、第２図は同上電気かみそりの内刃正面図である。(F) Example An example of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a sectional view of a main part of a rotary electric shaver using the present invention, and FIG. 2 is a front view of an inner blade of the electric shaver.
第１図において（１）は本発明電気かみそりを用いた
ロータリ式電気かみそりの本体ケースであり、該本体ケ
ース（１）の上端には多数の髭導入孔を有する外刃
（２）が設けられている。而して、外刃（２）の内面に
は内刃体（３）及びモータ（４）が配設されている。こ
の内刃体（３）は前記モータ（４）のギア（５）に連結
されるギヤを一方に有する一対の支持体（６）（６）
と、前記本体ケース（１）に遊嵌される回転軸（７）
と、前記支持体（６）に保持されると共に前記回転軸
（７）を中心として第２図に示すようにコイル状に巻回
された内刃（８）とより成っている。従って、前記内刃
体（３）はモータ（４）の駆動により前記ギヤ（５）を
介してモータ（４）と一体的に駆動するものである。In FIG. 1, (1) is a main body case of a rotary electric shaver using the electric shaver of the present invention, and an outer blade (2) having a number of beard introduction holes is provided at an upper end of the main body case (1). ing. Thus, an inner cutter body (3) and a motor (4) are provided on the inner surface of the outer cutter (2). The inner blade body (3) has a pair of supports (6) and (6) each having a gear connected to a gear (5) of the motor (4).
And a rotating shaft (7) loosely fitted in the main body case (1).
And an inner blade (8) held by the support (6) and wound in a coil shape around the rotation shaft (7) as shown in FIG. Accordingly, the inner cutter body (3) is driven integrally with the motor (4) via the gear (5) by driving the motor (4).
さて、前記内刃（８）はコイル状の金属線材を研削加
工することにより得られるものであり、第２図に示すよ
うに、前記内刃（８）は中央部の外径が両端部のそれよ
りも大である樽型形状となっている。この樽型形状の内
刃（８）は前記の如く中央部の外径が両端部のそれより
も大きいために、前記外刃（２）の内面とは前記中央部
のみ圧接するようになっている。Now, the inner cutter (8) is obtained by grinding a coil-shaped metal wire, and as shown in FIG. 2, the inner cutter (8) has an outer diameter at the center at both ends. The barrel shape is larger than that. Since the outer diameter of the central portion of the barrel-shaped inner blade (8) is larger than that of both ends as described above, only the center portion is brought into pressure contact with the inner surface of the outer blade (2). I have.
一方、通常、電気かみそりにより髭を剃る場合、該電
気かみそりの上部に配設された外刃の中央付近で髭を剃
ることが多い。従って、前記外刃（２）と前記内刃
（８）の圧接状態は外刃（２）の全長にわたって保持さ
れる必要はなく、外刃（２）の中央付近のみ圧接状態を
保持できればよい。即ち、前述の如く本発明は内刃と外
刃の圧接は互いに中央付近のみであるため、結果とし
て、モータ（４）の内刃回転駆動力に対する負荷を軽減
し、前記駆動力の低下を抑制することができる。On the other hand, in general, when shaving with an electric razor, the shave is often performed near the center of an outer blade provided above the electric razor. Therefore, the press-contact state between the outer cutter (2) and the inner cutter (8) does not need to be maintained over the entire length of the outer cutter (2), but only needs to be maintained near the center of the outer cutter (2). That is, as described above, in the present invention, the pressure contact between the inner cutter and the outer cutter is only near the center of each other, and as a result, the load on the inner cutter rotational driving force of the motor (4) is reduced, and the decrease in the driving force is suppressed. can do.
なお、本発明ロータリ式電気かみそりにより髭を剃る
場合、前記外刃（２）の中央付近に皮膚を押し当てる
と、外刃（２）の変形と共に、前記内刃（８）はコイル
状になっているために押し当てる強さに応じて変形が可
能であり、その結果、内刃（８）の圧接面積は皮膚を押
し当てる強さに応じて増加していき、実質的に髭剃り可
能な面積を減少させることはない。In the case of shaving with a rotary electric razor of the present invention, when the skin is pressed near the center of the outer blade (2), the inner blade (8) is coiled together with the deformation of the outer blade (2). As a result, the pressing area of the inner blade (8) increases according to the pressing force of the skin, and can be substantially shaved. It does not reduce the area.
（ト）発明の効果 以上のように本発明によれば、ロータリ式電気かみそ
りの内刃を中央部の外径が両端部のそれよりも大である
樽型形状に形成されているので、前記内刃と外刃との圧
接は中央付近のみとなり、その結果、ロータリ式電気か
みそりに内蔵さるているモータの内刃回転駆動力に対す
る負荷を軽減し、前記駆動力の低下を抑制することがで
きる。なお、内刃と外刃の圧接面積は皮膚を押し当てる
強さに応じて増加していくので、実質的に髭剃り可能な
面積を減少させることはない。(G) Advantages of the Invention As described above, according to the present invention, the inner blade of the rotary electric shaver is formed in a barrel shape in which the outer diameter of the central portion is larger than that of both ends. The pressure contact between the inner blade and the outer blade is only in the vicinity of the center, and as a result, the load on the inner blade rotational driving force of the motor incorporated in the rotary electric shaver can be reduced, and the decrease in the driving force can be suppressed. . In addition, since the press contact area between the inner blade and the outer blade increases according to the strength of pressing the skin, the area that can be shaved is not substantially reduced.
第１図は本発明を用いたロータリ式電気かみそりの要部
断面図、第２図は同上電気かみそりの内刃正面図であ
る。 （１）……本体ケース、（２）……外刃、（３）……内
刃体、（４）……モータ、（５）……ギヤ、（６）……
支持体、（７）……回転軸、（８）……内刃。FIG. 1 is a sectional view of a main part of a rotary electric shaver using the present invention, and FIG. 2 is a front view of an inner blade of the electric shaver. (1) ... body case, (2) ... outer cutter, (3) ... inner cutter, (4) ... motor, (5) ... gear, (6) ...
Support, (7) ... rotating shaft, (8) ... inner blade.
Claims (1)
リ式電気かみそりにおいて、前記内刃は中央部の外径が
両端部のそれよりも大である樽型形状に形成されている
ことを特徴とするロータリ式電気かみそり。1. A rotary electric shaver having an inner blade wound in a coil shape, wherein the inner blade is formed in a barrel shape having an outer diameter at a central portion larger than that at both ends. A rotary electric razor characterized by the following.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30023089A JP2740305B2 (en) | 1989-11-17 | 1989-11-17 | Rotary electric razor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30023089A JP2740305B2 (en) | 1989-11-17 | 1989-11-17 | Rotary electric razor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03159676A JPH03159676A (en) | 1991-07-09 |
| JP2740305B2 true JP2740305B2 (en) | 1998-04-15 |
Family
ID=17882285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30023089A Expired - Lifetime JP2740305B2 (en) | 1989-11-17 | 1989-11-17 | Rotary electric razor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2740305B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010067833A (en) * | 2001-04-02 | 2001-07-13 | 김맹기 | electric razor |
-
1989
- 1989-11-17 JP JP30023089A patent/JP2740305B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03159676A (en) | 1991-07-09 |
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