JP5024822B2 - Electric razor - Google Patents

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JP5024822B2
JP5024822B2 JP2007138337A JP2007138337A JP5024822B2 JP 5024822 B2 JP5024822 B2 JP 5024822B2 JP 2007138337 A JP2007138337 A JP 2007138337A JP 2007138337 A JP2007138337 A JP 2007138337A JP 5024822 B2 JP5024822 B2 JP 5024822B2
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frame
head
razor
tilting
spring
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JP2008289665A (en
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健作 規工川
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Hitachi Maxell Energy Ltd
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Hitachi Maxell Energy Ltd
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Description

本発明は、かみそりヘッドが本体ケースに対して少なくとも前後、左右方向へ傾動可能に支持してある電気かみそりに関する。   The present invention relates to an electric razor in which a razor head is supported to be tiltable at least in the front-rear and left-right directions with respect to a main body case.

本発明に関して、かみそりヘッドを前後軸と左右軸の回りに傾動可能に支持することは、例えば特許文献1に公知である。そこでは本体ケースでリング枠を左右傾動可能に支持し、リング枠でかみそりヘッドを前後傾動可能に支持している。リング枠の前後面には一対の支軸が突設してあり、これらの支軸を本体ケースに設けた軸受凹部で軸支している。また、かみそりヘッドの左右側面には一対の支軸が突設してあり、これらの支軸をリング枠に設けた軸受凹部で軸支している。   With respect to the present invention, it is known, for example, in Patent Document 1 to support a razor head so that it can tilt around a front-rear axis and a left-right axis. There, the main body case supports the ring frame so that it can tilt left and right, and the ring frame supports the razor head so that it can tilt forward and backward. A pair of support shafts project from the front and rear surfaces of the ring frame, and these support shafts are supported by bearing recesses provided in the main body case. A pair of support shafts project from the left and right side surfaces of the razor head, and these support shafts are supported by bearing recesses provided on the ring frame.

本発明の電気かみそりに関して、かみそりヘッドを全方位方向へ傾動および浮動可能に支持し、複数個のばねで中立位置へ復帰付勢することは特許文献2に公知である。そこでは、内フレームの上部に設けたフロート枠でフロート台を前後、左右、上下方向へ傾動および浮動可能に支持し、フロート枠とフロート台との間に配置した左右一対のばねで、フロート台およびかみそりヘッドを中立位置へ復帰付勢している。   Regarding the electric razor of the present invention, it is known in Patent Document 2 that a razor head is supported so as to be tiltable and floatable in all directions, and is returned to a neutral position by a plurality of springs. The float frame is supported by a float frame provided at the top of the inner frame so that it can be tilted and floated in the front-rear, left-right, and vertical directions, and a pair of left and right springs arranged between the float frame and the float table. The razor head is urged to return to the neutral position.

実公昭49−45910号公報(第1頁右欄19〜30行、第2図)Japanese Utility Model Publication No. 49-45910 (page 1, right column, lines 19 to 30, line 2) 特開2005−218608号公報(段落番号0027、図1)Japanese Patent Laying-Open No. 2005-218608 (paragraph number 0027, FIG. 1)

かみそりヘッドを全方位方向へ傾動および浮動可能に支持する電気かみそりにおいては、肌面の複雑な凹凸にひげ切断面を円滑に追随できる半面、ひげ切断面が不必要に傾動してふらつきやすく、ひげ切断を効果的に行いにくい傾向がある。とくに、特許文献1の電気かみそりにおいては、かみそりヘッドの全体を前後軸と左右軸とで歳差運動できるように支持しているだけであるので、かみそりヘッドを中立位置に戻すことができない。また、本体ケースに作用する衝撃や大きな外力が、前後および左右に設けた支軸のひとつに集中して作用することがあり、そうした場合に支軸や、支軸を支える軸受構造が傷付いて耐久性が損なわれることがある。   In an electric razor that supports the razor head so that it can be tilted and floated in all directions, the whisker cutting surface can smoothly follow the complex irregularities of the skin surface, while the beard cutting surface tilts unnecessarily and is prone to wobbling. It tends to be difficult to cut effectively. In particular, in the electric razor of Patent Document 1, since the entire razor head is supported so as to be capable of precessing between the front and rear axes and the left and right axes, the razor head cannot be returned to the neutral position. Also, impacts and large external forces acting on the main body case may be concentrated on one of the front and rear and left and right support shafts. In such cases, the support shaft and the bearing structure that supports the support shaft may be damaged. Durability may be impaired.

本発明の目的は、肌面の複雑な凹凸に刃面を円滑に追随できるにもかかわらず、かみそりヘッドを確りと支えてひげ切断面の不必要な傾動や旋回を規制してひげ切断を効果的に行える電気かみそりを提供することにある。本発明の目的は、かみそりヘッドが傾動するときの傾動中心となる傾動軸を確りと支えて、外力や衝撃力を分散し緩和でき、本体ケースに衝撃や大きな外力が作用するような場合に、外部荷重がひとつの傾動軸に集中するのを解消して、傾動軸や軸受構造の傷付きを解消し耐久性を向上できる電気かみそりを提供することにある。   The object of the present invention is to effectively cut the whiskers by supporting the razor head firmly and restricting unnecessary tilting and swiveling of the whisker cutting surface even though the blade surface can smoothly follow the complex irregularities of the skin surface. The purpose is to provide an electric razor that can be used automatically. The purpose of the present invention is to firmly support the tilting shaft that becomes the tilting center when the razor head tilts, to disperse and relieve external force and impact force, and when an impact or a large external force acts on the main body case, An object of the present invention is to provide an electric razor that eliminates the concentration of external loads on one tilting shaft, eliminates damage to the tilting shaft and bearing structure, and improves durability.

本発明の電気かみそりは、内刃4および外刃3を備えたかみそりヘッド2が、グリップを兼ねる本体ケース1に対して前後、左右方向へ傾動可能にヘッド支持構造で支持してある。ヘッド支持構造は、本体ケース1に固定されるフレーム21と、フレーム21で相対揺動可能に支持されるヘッド枠22と、フレーム21とヘッド枠22との間に設けられる第1傾動軸23と、ヘッド枠22とかみそりヘッド2との間に設けられる第2傾動軸24と、ヘッド枠22およびかみそりヘッド2を中立位置へ復帰付勢する第1ばね26および第2ばね27とを含む。第1傾動軸23と第2傾動軸24とは、それぞれの軸中心線が互いに直交する状態で配置する。以て、第1傾動軸23の回りに傾動するヘッド枠22を第1ばね26で中立位置へ復帰付勢し、第2傾動軸24の回りに傾動するかみそりヘッド2を第2ばね27で中立位置へ復帰付勢してあることを特徴とする。なお、本発明において本体ケース1に固定されるフレーム21とは、フレーム21が本体ケース1に直接固定してある場合と、実施例に示すように、フレーム21が内ケース10や内フレームなどを介して、間接的に本体ケース1に固定してある場合のいずれをも含むこととする。   In the electric razor of the present invention, a razor head 2 having an inner blade 4 and an outer blade 3 is supported by a head support structure so as to be tiltable in the front-rear and left-right directions with respect to a main body case 1 also serving as a grip. The head support structure includes a frame 21 that is fixed to the main body case 1, a head frame 22 that is supported by the frame 21 so as to be relatively swingable, and a first tilting shaft 23 that is provided between the frame 21 and the head frame 22. And a second tilting shaft 24 provided between the head frame 22 and the razor head 2, and a first spring 26 and a second spring 27 for urging the head frame 22 and the razor head 2 to return to the neutral position. The first tilting shaft 23 and the second tilting shaft 24 are arranged in a state where the respective axial center lines are orthogonal to each other. Thus, the head frame 22 tilting around the first tilting shaft 23 is urged back to the neutral position by the first spring 26, and the razor head 2 tilting around the second tilting shaft 24 is neutralized by the second spring 27. The position is biased back to the position. In the present invention, the frame 21 fixed to the main body case 1 includes the case where the frame 21 is directly fixed to the main body case 1 and the case where the frame 21 includes the inner case 10 and the inner frame as shown in the embodiment. Any of the cases where it is indirectly fixed to the main body case 1 are included.

フレーム21は、対向配置される一対の支持アーム30を備えている。支持アーム30は、第1傾動軸23を介してヘッド枠22と連結される上方の連結部33と、本体ケース1に装着固定される下方の装着部31とを備えている。両支持アーム30における装着部側の対向間隔L2は、本体ケース1の握り太さに対応して連結部33の対向間隔L1より小さく設定する。 The frame 21 includes a pair of support arms 30 arranged to face each other. The support arm 30 includes an upper connecting portion 33 that is connected to the head frame 22 via the first tilting shaft 23, and a lower mounting portion 31 that is attached and fixed to the main body case 1. Opposing distance L2 of the mounting portion side of the two support arms 30 small fences set Ri good opposing distance L1 of the connecting portion 33 corresponding to the grip thickness of the main body case 1.

両支持アーム30の連結部33に連続して、第1傾動軸23回りのヘッド枠22の傾動限界を規定するための補強壁32を横向きに張り出し形成する。以て、かみそりヘッド2およびヘッド枠22に作用する外力を、第1傾動軸23、連結部33、および補強壁32の三者が共同して負担できるようにする。   Continuing from the connecting portion 33 of both the support arms 30, a reinforcing wall 32 for defining the tilt limit of the head frame 22 around the first tilt shaft 23 is formed to project laterally. Therefore, the external force acting on the razor head 2 and the head frame 22 can be jointly borne by the first tilt shaft 23, the connecting portion 33, and the reinforcing wall 32.

両補強壁32と対向するヘッド枠22の下面に補強リブ43を形成する。図6に示すように補強リブ43の突端は、第1傾動軸23の軸中心を円弧中心とする部分円弧面で形成する。 Reinforcing ribs 43 are formed on the lower surface of the head frame 22 facing both the reinforcing walls 32. As shown in FIG. 6, the protruding end of the reinforcing rib 43 is formed by a partial arc surface with the axis center of the first tilting shaft 23 as the arc center.

フレーム21は、対向配置される一対の支持アーム30と、両支持アーム30の下端どうしを繋ぐ橋絡部34とを一体に備えている。   The frame 21 is integrally provided with a pair of support arms 30 arranged to face each other and a bridging portion 34 that connects the lower ends of both support arms 30.

かみそりヘッド2の中心軸線P2が、本体ケース1の中心軸線P1に対して一方向へ傾斜させてある電気かみそりにおいて、支持アーム30の連結部33を、装着部31に対してかみそりヘッド2の中心軸線P2と同じ方向へ傾斜させる。   In the electric razor in which the central axis P2 of the razor head 2 is inclined in one direction with respect to the central axis P1 of the main body case 1, the connecting portion 33 of the support arm 30 is set to the center of the razor head 2 with respect to the mounting portion 31. It is inclined in the same direction as the axis P2.

ヘッド枠22の両端に支持アーム30の連結部33と対向する軸受腕41を設ける。支持アーム30の連結部33とヘッド枠22の軸受腕41とを第1傾動軸23で相対揺動可能に連結する。前記連結部33の上端をヘッド枠22の軸受腕41の上端より上方へ突設する。以て、連結部33が第2傾動軸24の回りに傾動するかみそりヘッド2の傾動限界を規定する規制体を兼ねるようにする。   Bearing arms 41 facing the connecting portion 33 of the support arm 30 are provided at both ends of the head frame 22. The connecting portion 33 of the support arm 30 and the bearing arm 41 of the head frame 22 are connected by the first tilting shaft 23 so as to be relatively swingable. The upper end of the connecting portion 33 projects upward from the upper end of the bearing arm 41 of the head frame 22. Thus, the connecting portion 33 also serves as a regulating body that defines the tilt limit of the razor head 2 that tilts around the second tilt shaft 24.

フレーム21とヘッド枠22を連結する第1傾動軸23の軸端を、本体ケース1に設けた係合穴65で固定支持する。   The shaft end of the first tilt shaft 23 that connects the frame 21 and the head frame 22 is fixedly supported by the engagement hole 65 provided in the main body case 1.

両支持アーム30のそれぞれに、第1傾動軸23の中心軸線と交差する向きのばね受枠25を装着し、ばね受枠25の両端のばね受部55を本体ケース1に対して係合固定する。   A spring receiving frame 25 is mounted on each of the support arms 30 so as to intersect the central axis of the first tilting shaft 23, and the spring receiving portions 55 at both ends of the spring receiving frame 25 are engaged and fixed to the main body case 1.

ばね受枠25とヘッド枠22との間に、第1傾動軸23の回りに傾動したかみそりヘッド2を中立位置へ復帰付勢する第1ばね26を配置する。   A first spring 26 is disposed between the spring receiving frame 25 and the head frame 22 to urge the razor head 2 tilted around the first tilting shaft 23 to return to the neutral position.

ばね受枠25の両端に、ヘッド枠22を間に挟む状態で一対のばね受部55を対向配置し、ばね受部55とヘッド枠22との間に圧縮コイル形の第1ばね26を配置し、ばね受部55の外面を本体ケース1に係合固定する。   A pair of spring receiving portions 55 are disposed opposite to each other of the spring receiving frame 25 with the head frame 22 interposed therebetween, and a compression coil-shaped first spring 26 is disposed between the spring receiving portion 55 and the head frame 22. The outer surface of the spring receiving portion 55 is engaged and fixed to the main body case 1.

ヘッド枠22の軸受腕41に連続して、支持アーム30の補強壁32と上下に対向するばね受ブロック40を設ける。前記ばね受ブロック40とばね受部55との間に第1ばね26を配置する。   A spring receiving block 40 is provided continuously to the bearing arm 41 of the head frame 22 so as to face the reinforcing wall 32 of the support arm 30 in the vertical direction. The first spring 26 is disposed between the spring receiving block 40 and the spring receiving portion 55.

両支持アーム30の補強壁32に、ばね受枠25を装着固定する。   The spring receiving frame 25 is attached and fixed to the reinforcing walls 32 of the both support arms 30.

かみそりヘッド2とヘッド枠22とのいずれか一方に第2傾動軸24を設け、他方に第2傾動軸24で傾動可能に支持される傾動枠42を設ける。前記傾動枠42に、かみそりヘッド2とヘッド枠22との相対上下動作を吸収する浮動穴44を形成する。   A second tilting shaft 24 is provided on one of the razor head 2 and the head frame 22, and a tilting frame 42 that is supported so as to be tiltable by the second tilting shaft 24 is provided on the other. A floating hole 44 is formed in the tilting frame 42 to absorb the relative vertical movement of the razor head 2 and the head frame 22.

内刃4の駆動源となるモーター20、およびモーター20を支持するモーターホルダー16はかみそりヘッド2と一体化してある。モーターホルダー16の対向周面に第2傾動軸24を設け、ヘッド枠22に傾動枠42と浮動穴44を形成する。   A motor 20 that is a driving source of the inner blade 4 and a motor holder 16 that supports the motor 20 are integrated with the razor head 2. A second tilt shaft 24 is provided on the opposing peripheral surface of the motor holder 16, and a tilt frame 42 and a floating hole 44 are formed in the head frame 22.

本体ケース1の内部に内ケース10が収容され、内ケース10の内部にモーター20に駆動電流を供給するための電源部を組み込む。内ケース10にフレーム21の装着部31を装着固定する。   An inner case 10 is accommodated in the main body case 1, and a power supply unit for supplying a drive current to the motor 20 is incorporated in the inner case 10. The mounting portion 31 of the frame 21 is mounted and fixed to the inner case 10.

かみそりヘッド2に第2傾動軸24を設け、ヘッド枠22に第2傾動軸24で傾動可能に支持される傾動枠42を設ける。傾動枠42に、かみそりヘッド2とヘッド枠22との相対上下動作を吸収する浮動穴44を形成する。本体ケース1と傾動枠42との間に、第1傾動軸23の回りに傾動したかみそりヘッド2を中立位置へ復帰付勢する圧縮コイル形の第1ばね26を配置する。   The razor head 2 is provided with a second tilting shaft 24, and the head frame 22 is provided with a tilting frame 42 that is tiltably supported by the second tilting shaft 24. A floating hole 44 for absorbing the relative vertical movement of the razor head 2 and the head frame 22 is formed in the tilt frame 42. Between the main body case 1 and the tilting frame 42, a compression coil-shaped first spring 26 is disposed that urges the razor head 2 tilted around the first tilting shaft 23 to return to the neutral position.

本発明の電気かみそりにおいては、本体ケース1に固定されるフレーム21と、フレーム21で相対揺動可能に支持されるヘッド枠22と、これら両者21・22の間に設けられる第1傾動軸23および第2傾動軸24と、ヘッド枠22およびかみそりヘッド2を中立位置へ復帰付勢する第1ばね26および第2ばね27などでヘッド支持構造を構成し、第1傾動軸23と第2傾動軸24をそれぞれの軸中心線が互いに直交する状態で配置したうえで、第1傾動軸23の回りに傾動したヘッド枠22を第1ばね26で中立位置へ復帰付勢し、第2傾動軸24の回りに傾動したかみそりヘッド2を第2ばね27で中立位置へ復帰付勢できるようにした。   In the electric shaver of the present invention, a frame 21 fixed to the main body case 1, a head frame 22 supported by the frame 21 so as to be capable of relative swinging, and a first tilting shaft 23 provided between both of them. And the second tilting shaft 24, the first spring 26 and the second spring 27, etc. for returning and biasing the head frame 22 and the razor head 2 to the neutral position constitute a head support structure, and the first tilting shaft 23 and the second tilting motion. After the shafts 24 are arranged in a state where the respective axis center lines are orthogonal to each other, the head frame 22 tilted around the first tilting shaft 23 is urged to return to the neutral position by the first spring 26, and the second tilting shaft The razor head 2 tilted around 24 can be urged to return to the neutral position by the second spring 27.

上記のように、フレーム21とヘッド枠22を介してかみそりヘッド2を支持する電気かみそりによれば、肌面の複雑な凹凸に刃面を円滑に追随させながらひげ切断を円滑に行えるにもかかわらず、かみそりヘッド2をフレーム21とヘッド枠22とで確りと支え、さらにヘッド枠22およびかみそりヘッド2を第1ばね26、および第2ばね27で中立位置へ復帰付勢して、かみそりヘッド2が不必要にぐらつくのを規制できるので、ひげ切断面の不必要な傾動や旋回を規制して、ひげ切断を効果的に行える電気かみそりを提供できる。フレーム21を設けることにより、本体ケース1に加わる衝撃などをフレーム21で吸収し分散して、第1傾動軸23に作用する外力を緩和できる。   As described above, according to the electric razor that supports the razor head 2 via the frame 21 and the head frame 22, the whisker can be cut smoothly while the blade surface smoothly follows the complex irregularities of the skin surface. The razor head 2 is firmly supported by the frame 21 and the head frame 22, and the head frame 22 and the razor head 2 are urged to return to the neutral position by the first spring 26 and the second spring 27, so that the razor head 2 Therefore, the electric shaver that can effectively cut the whiskers can be provided by restricting unnecessary tilting and turning of the whisker cutting surface. By providing the frame 21, the impact applied to the main body case 1 is absorbed and dispersed by the frame 21, and the external force acting on the first tilting shaft 23 can be reduced.

対向配置される一対の支持アーム30でフレーム21を構成し、両支持アーム30における装着部側の対向間隔L2を、本体ケース1の握り太さに対応して連結部33の対向間隔L1より小さく設定すると、連結部33の対向間隔L1をできるだけ大きくして、前後幅に比べて左右幅が大きなかみそりヘッド2(あるいは左右幅に比べて前後幅が大きなかみそりヘッド2)を、フレーム21で安定した状態で軸支しながら、グリップを兼ねる本体ケース1の握り太さが太くなるのを避けることができ、したがって電気かみそりの使い勝手を向上できる。 And a frame 21 by a pair of support arms 30 which are opposed, the opposing distance L2 of the mounting portion side of the two support arms 30, Ri yo opposing distance L1 of the connecting portion 33 corresponding to the grip thickness of the main body case 1 If set small fence, and maximize the facing distance L1 of the connecting portion 33, a (large razor head 2 is longitudinal width than the or lateral width) large razor head 2 lateral width than the longitudinal width, the frame 21 While supporting the shaft in a stable state, it is possible to avoid an increase in the grip thickness of the main body case 1 that also serves as a grip, and therefore, it is possible to improve the usability of the electric razor.

両支持アーム30の連結部33に連続して、ヘッド枠22の傾動限界を規定する補強壁32を横向きに張り出し形成し、かみそりヘッド2およびヘッド枠22に作用する外力を、第1傾動軸23、連結部33、および補強壁32の三者が共同して負担するヘッド支持構造によれば、連結部33に連続して補強壁32を設けることで、支持アーム30のヘッド枠22との連結部分の構造強度を増強して外力に対抗できる。しかも、かみそりヘッド2が傾動するときの傾動中心となる第1傾動軸23を確りと支えて、第1傾動軸23に集中しやすい外力を連結部33および補強壁32で分散した状態の許に負担できる。したがって、本体ケース1に衝撃や大きな外力が作用するような場合に、外部荷重が第1傾動軸23に集中するのを解消して、第1傾動軸23や、その軸受構造の傷付きを解消し耐久性を向上できる。   A reinforcing wall 32 that defines the tilt limit of the head frame 22 is formed to extend laterally continuously from the connecting portion 33 of both the support arms 30, and external force acting on the razor head 2 and the head frame 22 is applied to the first tilt shaft 23. According to the head support structure jointly borne by the connection portion 33 and the reinforcing wall 32, the support wall 30 is connected to the head frame 22 by providing the reinforcement wall 32 continuously to the connection portion 33. The structural strength of the part can be increased to counter external forces. In addition, the first tilting shaft 23 that is the tilting center when the razor head 2 tilts is firmly supported, and the external force that tends to concentrate on the first tilting shaft 23 is allowed to be dispersed by the connecting portion 33 and the reinforcing wall 32. Can bear. Therefore, when an impact or a large external force is applied to the main body case 1, the external load is prevented from being concentrated on the first tilting shaft 23, and the first tilting shaft 23 and its bearing structure are not damaged. And durability can be improved.

両補強壁32と対向するヘッド枠22の下面に補強リブ43を設け、その突端が第1傾動軸回51の軸中心を円弧中心とする部分円弧面で形成してあると、補強リブ43によってヘッド枠22の構造強度を増強し、ヘッド枠22に作用する衝撃を緩和吸収できる。ヘッド枠22が第1傾動軸23の回りに前後傾動するときに、補強リブ43が補強壁32に接当するのを防止して、前後傾動動作を円滑に行うことができる。   When the reinforcing rib 43 is provided on the lower surface of the head frame 22 facing both the reinforcing walls 32 and the protruding end is formed by a partial arc surface with the axial center of the first tilt shaft 51 as the arc center, the reinforcing rib 43 The structural strength of the head frame 22 can be increased, and the impact acting on the head frame 22 can be relaxed and absorbed. When the head frame 22 tilts back and forth around the first tilting shaft 23, it is possible to prevent the reinforcing rib 43 from coming into contact with the reinforcing wall 32, and to smoothly perform the forward / backward tilting operation.

対向配置される一対の支持アーム30と、両支持アーム30の下端どうしを繋ぐ橋絡部34とでフレーム21を構成すると、例えば、一対の支持アーム30が独立部品として形成してある場合に比べて、フレーム21の構造強度を向上して、その分だけヘッド支持構造を堅牢化できる。また、フレーム21を本体ケース1に固定した状態において、両支持アーム30の連結部33で支持される一対の第1傾動軸23の中心位置がずれるのをよく防止でき、したがってヘッド枠22およびかみそりヘッド2の第1傾動軸23回りの傾動動作を常に円滑に行える。本体ケース1に作用する衝撃などの外力をフレーム21で吸収し、分散して、前記外力が第1傾動軸23に集中するのを防止できる。   When the frame 21 is configured by the pair of support arms 30 arranged opposite to each other and the bridging portion 34 that connects the lower ends of the both support arms 30, for example, compared to a case where the pair of support arms 30 are formed as independent components. Thus, the structural strength of the frame 21 can be improved, and the head support structure can be made stronger by that amount. Further, in a state where the frame 21 is fixed to the main body case 1, it is possible to well prevent the center positions of the pair of first tilting shafts 23 supported by the connecting portions 33 of the both support arms 30, and therefore the head frame 22 and the razor. The tilting motion of the head 2 around the first tilting axis 23 can be performed smoothly at all times. An external force such as an impact acting on the main body case 1 is absorbed by the frame 21 and dispersed to prevent the external force from concentrating on the first tilting shaft 23.

かみそりヘッド2の中心軸線P2が、本体ケース1の中心軸線P1に対して一方向へ傾斜させてある電気かみそりにおいて、支持アーム30の連結部33を装着部31に対してかみそりヘッド2の中心軸線P2と同じ方向へ傾斜させると、かみそりヘッド2と支持アーム30の連結部33とを同じ方向へ同じ角度だけ傾斜させて、第1傾動軸23をかみそりヘッド2の中心軸線P2を通る平面上、または前記平面の近傍に位置させることができるので、かみそりヘッド2をその中立位置から前後、左右方向へそれぞれ均等に傾動させて、肌面の凹凸に対する追随性を好適化できる。   In the electric razor in which the central axis P2 of the razor head 2 is inclined in one direction with respect to the central axis P1 of the main body case 1, the connecting portion 33 of the support arm 30 is set to the central axis of the razor head 2 with respect to the mounting portion 31. When tilted in the same direction as P2, the razor head 2 and the connecting portion 33 of the support arm 30 are tilted by the same angle in the same direction, and the first tilting shaft 23 is on a plane passing through the central axis P2 of the razor head 2, Alternatively, since the razor head 2 can be positioned in the vicinity of the flat surface, the razor head 2 can be evenly tilted from the neutral position in the front-rear and left-right directions, respectively, so that the followability to the unevenness of the skin surface can be optimized.

ヘッド枠22の両端に設けた軸受腕41と、支持アーム30の連結部33とを第1傾動軸23で相対揺動可能に連結し、連結部33の上端をヘッド枠22の軸受腕41の上端より上方へ突設すると、かみそりヘッド2の全体が下降変位した状態において左右傾動するとき、連結部33がヘッドフレーム15の下面を他の部材に先行して受け止めることができる。つまり、連結部33は第2傾動軸24の回りに傾動するかみそりヘッド2の傾動限界を規定する規制体を兼ねて、かみそりヘッド2の傾動限界を規定できる。   A bearing arm 41 provided at both ends of the head frame 22 and a connecting portion 33 of the support arm 30 are connected to each other by a first tilting shaft 23 so as to be relatively swingable. When projecting upward from the upper end, the connecting portion 33 can receive the lower surface of the head frame 15 in advance of another member when the razor head 2 is tilted left and right in a state where the entire razor head 2 is displaced downward. In other words, the connecting portion 33 can also define the tilt limit of the razor head 2 while also serving as a regulating body that defines the tilt limit of the razor head 2 tilting around the second tilt shaft 24.

フレーム21とヘッド枠22を連結する第1傾動軸23の軸端を、本体ケース1に設けた係合穴65で固定支持すると、フレーム21の下部の装着部31を本体ケース1に固定することに加えて、フレーム21の上部の連結部33を第1傾動軸23を介して本体ケース1に固定できるので、フレーム21を本体ケース1に対してさらに強固に固定でき、しかも一対の第1傾動軸23を本体ケース1で位置決め固定して、第1傾動軸23の中心位置のずれを解消できる。   When the shaft end of the first tilt shaft 23 that connects the frame 21 and the head frame 22 is fixed and supported by the engagement hole 65 provided in the main body case 1, the lower mounting portion 31 of the frame 21 is fixed to the main body case 1. In addition, since the connecting portion 33 at the upper part of the frame 21 can be fixed to the main body case 1 via the first tilt shaft 23, the frame 21 can be more firmly fixed to the main body case 1, and the pair of first tilts The shaft 23 is positioned and fixed by the main body case 1 so that the shift of the center position of the first tilting shaft 23 can be eliminated.

両支持アーム30のそれぞれに、第1傾動軸23の中心軸線と交差する向きのばね受枠25を装着し、ばね受枠25の両端のばね受部55を本体ケース1に対して係合固定するヘッド支持構造によれば、一対の支持アーム30をばね受枠25を介して本体ケース1に固定できるので、フレーム21を本体ケース1に対してさらに強固に固定して、第1傾動軸23をさらに正確に位置決めでき、加えてヘッド支持構造の全体を堅牢化できる。   Each of the support arms 30 is provided with a spring receiving frame 25 in a direction intersecting with the central axis of the first tilting shaft 23, and a head for engaging and fixing the spring receiving portions 55 at both ends of the spring receiving frame 25 to the main body case 1. According to the support structure, since the pair of support arms 30 can be fixed to the main body case 1 via the spring receiving frame 25, the frame 21 is more firmly fixed to the main body case 1, and the first tilting shaft 23 is more accurately fixed. In addition, the entire head support structure can be solidified.

ばね受枠25とヘッド枠22との間に第1ばね26を配置し、第1傾動軸23の回りに傾動したかみそりヘッド2を第1ばね26で中立位置へ復帰付勢すると、かみそりヘッド2およびヘッド支持構造を本体ケース1に組み付ける前に、第1ばね26をばね受枠25とヘッド枠22との間に先組みして、第1ばね26による中立位置への復帰動作を確認できるので、第1ばね26の組み付けをより簡便に行えるうえ、第1ばね26を含むヘッド支持構造の組み付けの手間を大幅に軽減できる。動作不良を早期に発見できる利点もある。   When the first spring 26 is disposed between the spring receiving frame 25 and the head frame 22 and the razor head 2 tilted around the first tilting shaft 23 is urged to return to the neutral position by the first spring 26, the razor head 2 and Before assembling the head support structure to the main body case 1, the first spring 26 can be pre-assembled between the spring receiving frame 25 and the head frame 22, and the return operation to the neutral position by the first spring 26 can be confirmed. The assembly of the first spring 26 can be performed more easily, and the labor for assembling the head support structure including the first spring 26 can be greatly reduced. There is also an advantage that malfunctions can be detected early.

ばね受枠25の両端に設けたばね受部55とヘッド枠22との間に圧縮コイル形の第1ばね26を配置し、ばね受部55の外面を本体ケース1に係合固定するヘッド支持構造によれば、第1ばね26のばね力をばね受部55と本体ケース1とで受け止めて、ばね受部55を確実に固定保持でき、したがってヘッド枠22、およびかみそりヘッド2を常に適正に中立位置に位置保持できる。   A head support structure in which a compression coil-shaped first spring 26 is arranged between the spring receiving portions 55 provided at both ends of the spring receiving frame 25 and the head frame 22 and the outer surface of the spring receiving portion 55 is engaged and fixed to the main body case 1. Accordingly, the spring force of the first spring 26 is received by the spring receiving portion 55 and the main body case 1 so that the spring receiving portion 55 can be securely fixed and held, so that the head frame 22 and the razor head 2 are always properly positioned in a neutral position. The position can be maintained.

ヘッド枠22の軸受腕41に連続して支持アーム30の補強壁32と上下に対向するばね受ブロック40を設け、このばね受ブロック40とばね受部55との間に第1ばね26を配置すると、軸受腕41とばね受ブロック40をL字状に連続させてばね受部分の強度を向上し、第1ばね26を安定した状態で受け止め支持できる。したがって、第1ばね26によるヘッド枠22、およびかみそりヘッド2の中立位置への復帰動作をさらに確実なものとして、かみそりヘッド2が不必要にぐらつくのを規制して確りと保持できる。   A spring receiving block 40 which is vertically opposed to the reinforcing wall 32 of the support arm 30 is provided continuously to the bearing arm 41 of the head frame 22, and the first spring 26 is disposed between the spring receiving block 40 and the spring receiving portion 55. Then, the bearing arm 41 and the spring receiving block 40 are made continuous in an L shape to improve the strength of the spring receiving portion, and the first spring 26 can be received and supported in a stable state. Therefore, the return operation to the neutral position of the head frame 22 and the razor head 2 by the first spring 26 can be further ensured, and the razor head 2 can be reliably held by restricting the wobbling unnecessarily.

両支持アーム30の補強壁32にばね受枠25を装着固定すると、支持アーム30の縦壁30aと補強壁32との内隅空間を利用してばね受枠25を支持アーム30と一体化できるので、本体ケース1内における空間利用に無駄がないうえ、ばね受枠25を安定した状態でしかも強固に支持アーム30に連結できる。ヘッド枠22に設けられるばねブロック40の近傍の補強壁32にばね受枠25を固定するので、第1ばね26を適正に組むことができる。   When the spring receiving frame 25 is mounted and fixed to the reinforcing walls 32 of both the support arms 30, the spring receiving frame 25 can be integrated with the support arm 30 using the inner corner space between the vertical wall 30a of the support arm 30 and the reinforcing wall 32. The space utilization in the main body case 1 is not wasted, and the spring receiving frame 25 can be firmly connected to the support arm 30 in a stable state. Since the spring receiving frame 25 is fixed to the reinforcing wall 32 in the vicinity of the spring block 40 provided on the head frame 22, the first spring 26 can be assembled appropriately.

かみそりヘッド2とヘッド枠22とのいずれか一方に第2傾動軸24を設け、他方に第2傾動軸24で傾動可能に支持される傾動枠42を設けたうえで、傾動枠42にかみそりヘッド2とヘッド枠22との相対上下動作を吸収する浮動穴44を形成すると、肌面に対する押し付け力をかみそりヘッド2が昇降変位することで緩和吸収できるので、ひげ切断時に肌面に作用する圧力を和らげて、ひげ切断後にひりつき感が残るのを解消できる。   A second tilting shaft 24 is provided on one of the razor head 2 and the head frame 22, and a tilting frame 42 that is tiltably supported by the second tilting shaft 24 is provided on the other. If the floating hole 44 that absorbs the relative vertical movement between the head frame 22 and the head frame 22 is formed, the pressing force against the skin surface can be relaxed and absorbed by the razor head 2 moving up and down, so the pressure acting on the skin surface when cutting the beard is reduced. It can be softened to eliminate the feeling of sticking after cutting the beard.

モーター20、およびモーターホルダー16をかみそりヘッド2と一体化し、モーターホルダー16の対向周面に第2傾動軸24を設け、ヘッド枠22に傾動枠42と浮動穴44を形成するヘッド支持構造によれば、かみそりヘッド2がヘッド枠22に対して昇降変位するとき、モーターホルダー16の平坦な対向周面を傾動枠42でスライド案内して、かみそりヘッド2が不必要にぐらつくのを規制できる。したがって、ひげ切断時にかみそりヘッド2が不必要にぐらつくのを規制し、ひげ切断面の不必要な傾動や旋回を規制して、ひげ切断をさらに効果的に行える。   According to the head support structure in which the motor 20 and the motor holder 16 are integrated with the razor head 2, the second tilt shaft 24 is provided on the opposing peripheral surface of the motor holder 16, and the tilt frame 42 and the floating hole 44 are formed in the head frame 22. For example, when the razor head 2 is moved up and down relative to the head frame 22, the flat opposed peripheral surface of the motor holder 16 is slid and guided by the tilt frame 42, so that the razor head 2 can be prevented from wobbling unnecessarily. Therefore, the shaving head 2 can be prevented from wobbling unnecessarily at the time of cutting the beard, and unnecessary tilting and turning of the beard cutting surface can be controlled to further effectively cut the beard.

本体ケース1の内部に電源部を含む内ケース10を収容し、内ケース10にフレーム21の装着部31を装着固定すると、かみそりヘッド2、ヘッド支持構造、および内ケース10の三者を組み立てた後に、これらを本体ケース1に組むことができる。したがって、先の三者を組み立てた時点で、ヘッド支持構造の機械的な動作確認と、モーター20および2次電池12などの電気的な動作確認を事前に行って、動作不良を早期に発見できる。   When the inner case 10 including the power supply unit is accommodated in the main body case 1 and the mounting portion 31 of the frame 21 is mounted and fixed to the inner case 10, the razor head 2, the head support structure, and the inner case 10 are assembled. Later, these can be assembled to the main body case 1. Therefore, when the previous three are assembled, the mechanical operation confirmation of the head support structure and the electrical operation confirmation of the motor 20 and the secondary battery 12 and the like can be performed in advance to detect an operation failure at an early stage. .

かみそりヘッド2に第2傾動軸24を設け、ヘッド枠22に第2傾動軸24で傾動可能に支持される傾動枠42を設け、本体ケース1と傾動枠42との間に、第1傾動軸23の回りに傾動したかみそりヘッド2を中立位置へ復帰付勢する圧縮コイル形の第1ばね26を配置すると、第1ばね26で傾動枠42を押圧保持して、傾動枠42が第2傾動軸24から浮き離れるのを規制でき、したがって、第2傾動軸24が傾動枠42に設けた浮動穴44から抜け出るのを確実に防止できる。   The razor head 2 is provided with a second tilting shaft 24, the head frame 22 is provided with a tilting frame 42 that is tiltably supported by the second tilting shaft 24, and the first tilting shaft is provided between the main body case 1 and the tilting frame 42. When the compression coil-shaped first spring 26 that urges the razor head 2 tilted around 23 to return to the neutral position is disposed, the tilt frame 42 is pressed and held by the first spring 26, and the tilt frame 42 is tilted second. Therefore, the second tilting shaft 24 can be reliably prevented from coming out of the floating hole 44 provided in the tilting frame 42.

(実施例) 図1ないし図10は本発明を適用したロータリー式の電気かみそりの実施例を示す。図2および図3において電気かみそりは、グリップを兼ねる本体ケース1と、その上部に設けられるかみそりヘッド2と、本体ケース1の内部に収容される電装品ユニット3などで構成してある。本体ケース1の前面には、モーター起動用のスイッチボタン4や、モーターの運転状態を切り替えるセレクトボタン5と、LED表示部6とが設けてある。本体ケース1の後面には、きわぞり刃7と、きわぞり刃7を使用姿勢へ押し上げ操作するスライドノブ8が設けてある。図3に示すように、かみそりヘッド2の中心軸線P2は、本体ケース1の中心軸線P1に対してケース前面側へ傾斜させてある。中心軸線P2の傾斜角度は30度である。 (Embodiment) FIGS. 1 to 10 show an embodiment of a rotary electric shaver to which the present invention is applied. 2 and 3, the electric razor is composed of a main body case 1 that also serves as a grip, a razor head 2 provided on the upper portion thereof, an electrical component unit 3 accommodated in the main body case 1, and the like. On the front surface of the main body case 1, a switch button 4 for starting the motor, a select button 5 for switching the operation state of the motor, and an LED display unit 6 are provided. On the rear surface of the main body case 1, there are provided a sliding blade 7 and a slide knob 8 that pushes up the sliding blade 7 to a use posture. As shown in FIG. 3, the central axis P <b> 2 of the razor head 2 is inclined toward the front side of the case with respect to the central axis P <b> 1 of the main body case 1. The inclination angle of the central axis P2 is 30 degrees.

図3において電装品ユニット3は、内ケース10と、その内部に配置される回路基板11および2次電池12などの電源部と、回路基板に実装されて先のボタン4・5で切り換え操作されるスイッチ4a・5aと、複数個の表示用LEDなどで構成してある。図4に示すように、本体ケース1は、前後に分割形成される前ケース1aおよび後ケース1bと、これら前後ケース1a・1bの接合縁の外面を覆う側部カバー1cと、内ケース11に締結固定される底カバー1dとで構成してある。図2〜図4に示すように、前ケース1aの上部にはV字状のパネル76が装着固定してある。このパネル76は、ABS樹脂の外面にエラストマー樹脂を重ねた2色成形品からなり、パネル76の両側端から中央へ向かって膨出させてある。この膨出部を符号77で示す。表面のエラストマー樹脂は滑り止めのために設けられており、先の膨出部77に親指と人差し指との付け根部分をあてがい、あるいはケース後面のスライドノブ8の下部に設けられる指当部78と膨出部77とを握り締めることにより、本体ケース1を確りと保持してひげ切断を行える。さらに、膨出部77に親指をあてがった状態で本体ケース1を握り保持することにより、本体ケース1の向きを肌面の変化に応じて容易に変更できる。左右の側部カバー1cも、上記パネル78と同様にABS樹脂の外面にエラストマー樹脂を重ねた2色成形品からなり、表面のエラストマー樹脂によって滑り止め機能を発揮できる。   In FIG. 3, the electrical component unit 3 is mounted on the inner case 10, a power supply unit such as the circuit board 11 and the secondary battery 12 disposed in the inner case 10, and the switching operation is performed with the previous buttons 4 and 5. Switches 4a and 5a and a plurality of display LEDs. As shown in FIG. 4, the main body case 1 is divided into a front case 1 a and a rear case 1 b that are divided into front and rear, a side cover 1 c that covers the outer surface of the joining edge of the front and rear cases 1 a and 1 b, and an inner case 11 The bottom cover 1d is fastened and fixed. As shown in FIGS. 2 to 4, a V-shaped panel 76 is attached and fixed to the upper portion of the front case 1 a. The panel 76 is a two-color molded product in which an elastomer resin is overlapped on the outer surface of the ABS resin, and is bulged from both side ends of the panel 76 toward the center. This bulging portion is indicated by reference numeral 77. The elastomer resin on the surface is provided to prevent slipping, and the base portion of the thumb and forefinger is attached to the bulging portion 77 at the tip, or the finger rest portion 78 provided at the lower portion of the slide knob 8 on the rear surface of the case. By grasping and tightening the protruding portion 77, the main body case 1 can be securely held and the whiskers can be cut. Furthermore, by gripping and holding the main body case 1 with the thumb applied to the bulging portion 77, the orientation of the main body case 1 can be easily changed according to changes in the skin surface. Similarly to the panel 78, the left and right side covers 1c are made of a two-color molded product in which an elastomer resin is superimposed on the outer surface of the ABS resin, and can exhibit an anti-slip function by the elastomer resin on the surface.

図3、図4および図10に示すように、内ケース10は、前内ケース10aと後内ケース10bとに分割して形成してあり、蓋合わせ状に接合した両内ケース10a・10bを上下一対のクリップ71で固定している。そのために、前内ケース10aの左右側面の上下に係合爪72を突設し、コ字状に折り曲げたクリップ71の左右腕73に、先の係合爪72に係合する係止穴74を設けている。自由状態におけるクリップ71の左右腕73の対向間隔は、内ケース10の左右幅寸法より小さく設定してあり、したがって、クリップ71を内ケース10に外嵌装着した状態では、左右腕73は、自己の弾性で内ケース10の表面に密着している。内ケース10の上端面には、後述する装着部31を係合装着するための係合枠13が形成され、前内ケース10aの上面左右にブラケット14が形成してある。両内ケース10a・10bの接合面はシールリングでシールしてある。上記のように、前後内ケース10a・10bをクリップ71で分離不能に抱持固定する締結構造によれば、内ケース10の外形をコンパクト化して、その分だけ本体ケース1を小形化しケース太さを小さくでき、握りやすくなる。   As shown in FIG. 3, FIG. 4 and FIG. 10, the inner case 10 is divided into a front inner case 10a and a rear inner case 10b. It is fixed with a pair of upper and lower clips 71. For this purpose, engaging claws 72 are provided on the upper and lower side surfaces of the front inner case 10a so as to project into the left and right arms 73 of the clip 71 bent in a U-shape. Is provided. The spacing between the left and right arms 73 of the clip 71 in the free state is set to be smaller than the left and right width dimensions of the inner case 10. Therefore, when the clip 71 is externally fitted to the inner case 10, It is in close contact with the surface of the inner case 10 due to its elasticity. On the upper end surface of the inner case 10, an engagement frame 13 for engaging and mounting a mounting portion 31 described later is formed, and brackets 14 are formed on the left and right of the upper surface of the front inner case 10a. The joint surfaces of both inner cases 10a and 10b are sealed with a seal ring. As described above, according to the fastening structure in which the front and rear inner cases 10a and 10b are held and fixed by the clip 71 in an inseparable manner, the outer shape of the inner case 10 is made compact, and the main body case 1 is reduced in size to that extent. Can be made smaller and easier to grip.

図5においてかみそりヘッド2は、ヘッドフレーム15と、ヘッドフレーム15の下面に締結固定されるモーターホルダー16と、ヘッドフレーム15に対して着脱できる外刃ホルダー17などを外殻体にして、ヘッドフレーム15の上面上方に前後一対のメイン刃18とセンター刃19を配置し、これら両者の内刃をモーターホルダー16に収容したモーター20の動力で駆動できるようにしてある。縦置き配置したモーター20の回転動力は、ヘッドフレーム15に設けたギヤ伝動機構28を介してメイン刃18の内刃18aに伝動され、同時に図示していない振動子で往復動力に変換してセンター刃19の内刃と、きわぞり刃8の可動刃に伝動される。メイン刃18の外刃18bは外刃ホルダー17に組み付けてある。   In FIG. 5, the razor head 2 includes a head frame 15, a motor holder 16 that is fastened and fixed to the lower surface of the head frame 15, and an outer blade holder 17 that can be attached to and detached from the head frame 15. A pair of front and rear main blades 18 and a center blade 19 are disposed above the upper surface of 15, and both of these inner blades can be driven by the power of a motor 20 accommodated in a motor holder 16. The rotational power of the vertically arranged motor 20 is transmitted to the inner blade 18a of the main blade 18 via a gear transmission mechanism 28 provided on the head frame 15, and at the same time converted into reciprocating power by a vibrator (not shown). It is transmitted to the inner blade of the blade 19 and the movable blade of the kirizori blade 8. The outer blade 18 b of the main blade 18 is assembled to the outer blade holder 17.

上記のかみそりヘッド2を前後、左右、上下、斜めの全方位方向へ傾動可能に浮動支持するために、かみそりヘッド2と本体ケース1との間にヘッド支持構造を設けている。ヘッド支持構造は、本体ケース1に固定されるフレーム21と、フレーム21で相対揺動可能に支持されるヘッド枠22と、フレーム21とヘッド枠22との間に設けられる第1傾動軸23と、ヘッド枠22とかみそりヘッド2との間に設けられる第2傾動軸24と、フレーム21に装着される左右一対のばね受枠25と、ヘッド枠22およびかみそりヘッド2を中立位置へ復帰付勢する第1ばね26および第2ばね27で構成する。   A head support structure is provided between the razor head 2 and the body case 1 in order to float and support the razor head 2 so as to be tiltable in all directions including front and rear, left and right, up and down, and diagonal directions. The head support structure includes a frame 21 that is fixed to the main body case 1, a head frame 22 that is supported by the frame 21 so as to be relatively swingable, and a first tilting shaft 23 that is provided between the frame 21 and the head frame 22. The second tilting shaft 24 provided between the head frame 22 and the razor head 2, the pair of left and right spring receiving frames 25 attached to the frame 21, and the head frame 22 and the razor head 2 are urged to return to the neutral position. The first spring 26 and the second spring 27 are used.

フレーム21は、モーターホルダー16を間に挟んで対向配置される左右一対の支持アーム30と、支持アーム30の下端どうしを繋ぐ橋絡部34とを一体に備えたステンレス板材製のプレス金具で構成してある。支持アーム30は、橋絡部34の左右側縁に連続して上向きに折り曲げられる縦壁30aと、縦壁の上部に連続して外側方へ折り曲げられる補強壁32と、補強壁32に連続して上向きに折り曲げられる連結部33とを備えている。図6に示すように、側面から見た縦壁30aは、上向き、斜め後向き、上向き、斜め前向きの順に屈折する状態で打ち抜き形成されており、これにより連結部33をかみそりヘッド2の中心軸線P2と同じ方向へ同じ角度で傾斜させている。補強壁32と連結部33の壁面とは互いに直交する関係にある。支持アーム30を本体ケース1に固定するために、支持アーム30の下部に装着部31を設ける。   The frame 21 is formed of a stainless steel plate-made press fitting that is integrally provided with a pair of left and right support arms 30 that are opposed to each other with the motor holder 16 therebetween and a bridging portion 34 that connects the lower ends of the support arms 30 to each other. It is. The support arm 30 is continuous with the vertical wall 30a that is continuously bent upward at the left and right side edges of the bridge portion 34, the reinforcing wall 32 that is continuously bent outward at the top of the vertical wall, and the reinforcing wall 32. And a connecting portion 33 that is bent upward. As shown in FIG. 6, the vertical wall 30 a viewed from the side is punched and formed in a state of being refracted in the order of upward, obliquely backward, upward, and obliquely forward, whereby the connecting portion 33 is centered on the central axis P <b> 2 of the razor head 2. Are inclined at the same angle in the same direction. The reinforcing wall 32 and the wall surface of the connecting portion 33 are in a relationship orthogonal to each other. In order to fix the support arm 30 to the main body case 1, a mounting portion 31 is provided at the lower portion of the support arm 30.

図5に示すように、左右一対の支持アーム30における橋絡部34側の対向間隔L2は、連結部33の対向間隔L1に比べて充分に小さく設定してある。これは、橋絡部34側の対向間隔L2をできるだけ小さくして、グリップを兼ねる本体ケース1の握り太さが太くなるのを避けることと、連結部33の対向間隔L1をできるだけ大きくして、前後幅に比べて左右幅が大きなかみそりヘッド2を安定した状態で軸支するためである。   As shown in FIG. 5, the facing distance L <b> 2 on the bridging portion 34 side in the pair of left and right support arms 30 is set to be sufficiently smaller than the facing distance L <b> 1 of the connecting portion 33. This is to make the facing distance L2 on the bridging portion 34 side as small as possible to avoid increasing the grip thickness of the main body case 1 that also serves as a grip, and to increase the facing distance L1 of the connecting portion 33 as much as possible. This is because the razor head 2 having a larger left-right width than the front-rear width is pivotally supported in a stable state.

橋絡部34は平板状に形成してあり、その前後縁に四角形状の連結片35が張り出し形成してある。これらの連結片35を内ケース10の係合枠13に差し込み係合し、さらに左右縦壁30aの下部を、先のブラケット14と共にビス36で前ケース1aに締結することにより、フレーム21が本体ケース1と一体化してある。このように、左右縦壁30aの下部と、ブラケット14とをビス36で共締め固定すると、フレーム21と内ケース10とを、より簡単な構造で本体ケース1に固定できる。このフレーム固定構造から理解できるように、本実施例における装着部31は、橋絡部34と、ビス36で締結される左右の縦壁30aを含む概念である。   The bridging portion 34 is formed in a flat plate shape, and quadrangular connection pieces 35 are formed so as to protrude from the front and rear edges thereof. These connecting pieces 35 are inserted into and engaged with the engaging frame 13 of the inner case 10, and the lower part of the left and right vertical walls 30 a is fastened to the front case 1 a with screws 36 together with the brackets 14. It is integrated with the case 1. Thus, when the lower part of the left and right vertical walls 30a and the bracket 14 are fastened and fixed together with the screws 36, the frame 21 and the inner case 10 can be fixed to the main body case 1 with a simpler structure. As can be understood from this frame fixing structure, the mounting portion 31 in the present embodiment is a concept including a bridge portion 34 and left and right vertical walls 30 a fastened by screws 36.

ヘッド枠22は、モーターホルダー16を周囲を囲むリング状の枠本体39と、枠本体39の左右両側から横向きに張り出されるばね受ブロック40と、ばね受ブロック40の側端から上向きに突設される軸受腕41と、枠主体39の前後面に設けられる傾動枠42と、ばね受ブロック40の下面に突設される左右一対の補強リブ43を一体に備えたプラスチック成形品からなる。枠本体39は、モーターホルダー16の断面形状に合致して、前部および後部が平坦な太鼓形状に形成してあり、これらの平坦部分に円形リング状の傾動枠42が一体に形成してある。傾動枠42で囲まれる円形の空間は、かみそりヘッド2を上下に昇降変位させ、さらに左右に傾動させるための浮動穴44として機能する。   The head frame 22 includes a ring-shaped frame main body 39 that surrounds the motor holder 16, a spring receiving block 40 that protrudes laterally from the left and right sides of the frame main body 39, and a protruding upward from the side end of the spring receiving block 40. And a pair of left and right reinforcing ribs 43 projecting from the lower surface of the spring receiving block 40 are integrally formed with a plastic molded product. The frame main body 39 is formed in a drum shape with a flat front portion and a rear portion that match the cross-sectional shape of the motor holder 16, and a circular ring-shaped tilting frame 42 is integrally formed on these flat portions. . A circular space surrounded by the tilt frame 42 functions as a floating hole 44 for moving the razor head 2 up and down and tilting it further to the left and right.

補強リブ43の突端面は、後述する第1傾動軸23の軸中心を円弧中心とする部分円弧面で形成してある(図6参照)。ばね受ブロック40の上面には、後述する第2ばね27用の第2ばね受体46が突設してあり、ばね受ブロック40の前後面には、後述する第1ばね 用の第1ばね受体47が突設してある。第1・第2のばね受体47・46は、それぞれピン状の突起からなる。   The protruding end surface of the reinforcing rib 43 is formed as a partial arc surface whose center is the axis of the first tilting shaft 23 described later (see FIG. 6). A second spring receiving body 46 for a second spring 27 described later projects from the upper surface of the spring receiving block 40, and a first spring for the first spring described later is provided on the front and rear surfaces of the spring receiving block 40. A receiving body 47 is projected. The first and second spring receivers 47 and 46 are each composed of a pin-shaped protrusion.

ヘッド枠22の軸受腕41を支持アーム30の連結部33の内面に接合して、両者33・41を第1傾動軸23で連結することにより、ヘッド枠22がフレーム21で前後傾動可能に支持される。また、モーターホルダー16の前後面に突設した第2傾動軸24を傾動枠42の上部内面、すなわち浮動穴44の上面で受け止めることにより、かみそりヘッド2の全体が、第2傾動軸24を傾動支点にして左右傾動でき、さらにかみそりヘッド2の全体が上下に昇降変位できる。なお、かみそりヘッド2の昇降動作は、その中心軸線P2に沿った斜めの昇降動作となる。   By joining the bearing arm 41 of the head frame 22 to the inner surface of the connecting portion 33 of the support arm 30 and connecting both 33 and 41 with the first tilting shaft 23, the head frame 22 is supported by the frame 21 so that it can tilt forward and backward. Is done. Further, by receiving the second tilting shaft 24 protruding from the front and rear surfaces of the motor holder 16 by the upper inner surface of the tilting frame 42, that is, the upper surface of the floating hole 44, the entire razor head 2 tilts the second tilting shaft 24. The razor head 2 can be tilted right and left as a fulcrum, and the entire razor head 2 can be moved up and down. The raising / lowering operation of the razor head 2 is an oblique raising / lowering operation along the central axis P2.

上記のように、かみそりヘッド2が組み付けられたヘッド枠22を、第1傾動軸23でフレーム21に組み付けた状態においては、第1傾動軸23と第2傾動軸24とは、それぞれの軸中心線が互いに直交する。したがって、かみそりヘッド2は本体ケース1に対して、前後、左右、上下、斜めの全方位方向へ傾動可能に浮動支持される。また、フレーム21とヘッド枠22を組み付けた状態においては、連結部33の上端がヘッド枠22の軸受腕41の上端より上方へ突設している。これにより、かみそりヘッド2の全体が下降変位した状態において左右傾動するとき、連結部33がヘッドフレーム15の下面を他の部材に先行して受け止めて、かみそりヘッド2の傾動限界を規定できる。つまり、連結部33は第2傾動軸24の回りに傾動するかみそりヘッド2の傾動限界を規定する規制体を兼ねている。このように、連結部33の上端でヘッドフレーム15の下面を受け止めるときの衝突音の発生を防ぐために、ヘッドフレーム15の下面にクッション材を貼付固定することができる。クッション材としては、ゴム、または発泡プラスチック材を適用できる。   As described above, in the state in which the head frame 22 to which the razor head 2 is assembled is assembled to the frame 21 with the first tilting shaft 23, the first tilting shaft 23 and the second tilting shaft 24 have their respective axial centers. The lines are orthogonal to each other. Therefore, the razor head 2 is floatingly supported with respect to the main body case 1 so as to be tiltable in all directions including front and rear, left and right, up and down, and diagonal directions. Further, in the state where the frame 21 and the head frame 22 are assembled, the upper end of the connecting portion 33 protrudes above the upper end of the bearing arm 41 of the head frame 22. As a result, when the entire razor head 2 is tilted to the left and right, the connecting portion 33 can receive the lower surface of the head frame 15 in advance of the other members and define the tilt limit of the razor head 2. That is, the connecting portion 33 also serves as a restricting body that regulates the tilt limit of the razor head 2 that tilts around the second tilt shaft 24. Thus, in order to prevent the occurrence of a collision sound when the lower surface of the head frame 15 is received at the upper end of the connecting portion 33, a cushion material can be stuck and fixed to the lower surface of the head frame 15. As the cushion material, rubber or foamed plastic material can be applied.

ばね受枠25は、左右の支持アーム30の補強壁32に係合装着されるベース部54と、ベース部54の前後端から上向きに突設されるばね受腕55とを一体に設けた、前後に長いプラスチック成形品からなる。ベース部54の上面の前後中央には一対の係合爪56が前後に対向する状態で設けてあり、ばね受腕55の前後対向面には、それぞれ第1ばね26用の第1ばね受体57が突設してある。また、各ばね受腕55の前面および後面には、それぞれ係合ピン58が突設してある(図6参照)。第1ばね受体57はピン状の突起からなる。   The spring receiving frame 25 includes a base portion 54 that is engaged with the reinforcing walls 32 of the left and right support arms 30 and a spring receiving arm 55 that protrudes upward from the front and rear ends of the base portion 54. It consists of a long plastic molded product. A pair of engaging claws 56 are provided in the front-rear center of the upper surface of the base portion 54 so as to face each other, and the first spring receiver for the first spring 26 is provided on the front-rear facing surface of the spring receiving arm 55. 57 protrudes. Engagement pins 58 project from the front and rear surfaces of each spring receiving arm 55 (see FIG. 6). The 1st spring receptacle 57 consists of a pin-shaped protrusion.

図1に示すように、断面が横臥L状のベース部54を、補強壁32の下面と縦壁30aとの内隅部分にあてがって、前後の係合爪56を補強壁32の前後縁に圧嵌係合することにより、ばね受枠25をフレーム21と一体化できる。この組み付け状態におけるばね受枠25は第1傾動軸23と直交する関係にあり、前後のばね受腕55に設けた第2ばね受体57は、ヘッド枠22のばね受ブロック40を間に挟んで前後に対向しており、ばね受ブロック40の前後面に設けた第2ばね受体47と前後に正対している。   As shown in FIG. 1, the base portion 54 having a cross-shaped L-shaped cross section is applied to the inner corner portion between the lower surface of the reinforcing wall 32 and the vertical wall 30 a, and the front and rear engaging claws 56 are attached to the front and rear edges of the reinforcing wall 32. The spring receiving frame 25 can be integrated with the frame 21 by press-fitting engagement. The spring receiving frame 25 in this assembled state is orthogonal to the first tilting shaft 23, and the second spring receiving body 57 provided on the front and rear spring receiving arms 55 sandwiches the spring receiving block 40 of the head frame 22. The front and rear faces the front and rear surfaces of the second spring receiver 47 provided on the front and rear surfaces of the spring receiving block 40.

上記のように各方向へ浮動および傾動可能に支持したヘッド枠22およびかみそりヘッド2を中立位置へ復帰付勢するために、ヘッド枠22とばね受枠25との間に圧縮コイル形のばねからなる4個の第1ばね26を配置し、かみそりヘッド2とヘッド枠22との間に圧縮コイル形のばねからなる2個の第2ばね27を配置する。詳しくは、図1に示すように、ヘッド枠22のばね受ブロック40の前後に設けた第1ばね受体47と、ばね受枠25の前後のばね受腕55に設けた第1ばね受体57との間に第1ばね26を配置し、モーターホルダー16の上端左右に張り出した座壁61の下面にピン状の第2ばね受体62を突設し、この第2ばね受体62と、ヘッド枠22のばね受ブロック40の上面に設けた第2ばね受体46との間に第2ばね27を配置している。   In order to return and urge the head frame 22 and the razor head 2 supported so as to be able to float and tilt in each direction as described above, a compression coil spring is formed between the head frame 22 and the spring receiving frame 25. Four first springs 26 are arranged, and two second springs 27 made of compression coil springs are arranged between the razor head 2 and the head frame 22. Specifically, as shown in FIG. 1, a first spring receiver 47 provided on the front and rear of the spring receiving block 40 of the head frame 22 and a first spring receiver 57 provided on the spring receiving arms 55 on the front and rear of the spring receiving frame 25. The first spring 26 is disposed between the upper end of the motor holder 16 and a pin-shaped second spring receiver 62 is provided on the lower surface of the seat wall 61 projecting from the left and right ends of the motor holder 16. A second spring 27 is disposed between the second spring receiver 46 provided on the upper surface of the spring receiving block 40 of the head frame 22.

先に説明したように、フレーム21は、その装着部31を内ケース10の係合枠13に係合し、左右縦壁30aをブラケット14と共にビス36で前ケース1aに締結することにより本体ケース1と一体化される。この連結構造に加えて、フレーム21の上部左右、および左右一対のばね受枠25の前後をそれぞれ本体ケース1に固定することにより、ヘッド支持構造を本体ケース1に対してさらに強固に固定し、堅牢さを向上できるようにしている。   As described above, the frame 21 has the main body case by engaging the mounting portion 31 with the engagement frame 13 of the inner case 10 and fastening the left and right vertical walls 30a together with the bracket 14 to the front case 1a with screws 36. 1. In addition to this connection structure, the head support structure is more firmly fixed to the main body case 1 by fixing the upper left and right sides of the frame 21 and the front and rear of the pair of left and right spring receiving frames 25 to the main body case 1, and is robust. So that it can be improved.

具体的には図1および図5に示すように、第1傾動軸23の軸端を前ケース1aおよび後ケース1bの接合縁に設けた係合穴65で支持して、連結部33、軸受腕41などの第1傾動軸23の周辺構造を移動不能に固定保持している。また、各ばね受枠25の前側のばね受部55に設けた係合ピン58を前ケース1aの内面に設けたボス66で支持し、さらに、各ばね受枠25の後側のばね受部55に設けた係合ピン58を後ケース1bに設けたボス67で支持して、ばね受枠25および補強壁32を移動不能に固定保持している。連結部33と係合穴65との間には、第1傾動軸23に外嵌するスペーサー68が配置され、第1傾動軸23の側端は側部カバー1cで覆われている。   Specifically, as shown in FIGS. 1 and 5, the shaft end of the first tilting shaft 23 is supported by an engagement hole 65 provided at the joining edge of the front case 1a and the rear case 1b, and the connecting portion 33, bearing The peripheral structure of the first tilt shaft 23 such as the arm 41 is fixedly held so as not to move. Further, the engaging pin 58 provided on the spring receiving portion 55 on the front side of each spring receiving frame 25 is supported by a boss 66 provided on the inner surface of the front case 1a, and further, on the spring receiving portion 55 on the rear side of each spring receiving frame 25. The provided engagement pin 58 is supported by a boss 67 provided on the rear case 1b, and the spring receiving frame 25 and the reinforcing wall 32 are fixedly held so as not to move. A spacer 68 that is externally fitted to the first tilt shaft 23 is disposed between the connecting portion 33 and the engagement hole 65, and the side end of the first tilt shaft 23 is covered with the side cover 1c.

図11および図12は、ヘッド支持構造の別の実施例を示す。そこでは、前後の傾動枠42と、本体ケース1の前後ケース1a・1bの内面に設けたばね受座76との間に第1ばね26を配置して、第1傾動軸23の回りに傾動したヘッド枠22およびかみそりヘッド2を中立位置へ復帰付勢できるようにした。また、傾動枠42に設けられる浮動穴44を上下方向の長溝で形成して、第2傾動軸24が常に浮動穴44と係合する状態で、かみそりヘッド2をヘッド枠22に対して昇降変位できるようにした。この実施例におけるかみそりヘッド2は本体ケース1の中心軸線の延長上に直立する状態で設けてあり、したがって支持アーム30は上下方向に真直ぐに形成してある。ばね受枠25は省略した。他は先の実施例と同じであるので、同じ部材に同じ符号を付してその説明を省略する。以下の実施例においても同様に扱う。上記のように、本体ケース1と傾動枠42との間に、圧縮コイル形の第1ばね26を配置すると、第1ばね26で傾動枠42を押圧保持して、傾動枠42が第2傾動軸24から浮き離れるのを規制でき、したがって、第2傾動軸24が傾動枠42に設けた浮動穴44から抜け出るのを確実に防止できる。   11 and 12 show another embodiment of the head support structure. In this case, the first spring 26 is disposed between the front and rear tilt frames 42 and the spring receiving seats 76 provided on the inner surfaces of the front and rear cases 1 a and 1 b of the main body case 1, and tilts about the first tilt shaft 23. The head frame 22 and the razor head 2 can be urged to return to the neutral position. The razor head 2 is displaced up and down with respect to the head frame 22 in a state where the floating hole 44 provided in the tilting frame 42 is formed by a long groove in the vertical direction and the second tilting shaft 24 is always engaged with the floating hole 44. I was able to do it. The razor head 2 in this embodiment is provided in an upright state on the extension of the central axis of the main body case 1, and therefore the support arm 30 is formed straight in the vertical direction. The spring receiving frame 25 is omitted. Since others are the same as the previous embodiment, the same reference numerals are assigned to the same members, and descriptions thereof are omitted. The same applies to the following embodiments. As described above, when the compression coil-shaped first spring 26 is disposed between the main body case 1 and the tilt frame 42, the tilt frame 42 is pressed and held by the first spring 26, so that the tilt frame 42 is second tilted. Therefore, the second tilting shaft 24 can be reliably prevented from coming out of the floating hole 44 provided in the tilting frame 42.

図13は、ヘッド支持構造のさらに別の実施例を示す。そこでは、モーターホルダー16の下面中央(かみそりヘッド2の下面中央)と内ケース10との間に引っ張りコイル形の第1ばね26を配置して、第1・第2の両傾動軸23・24の回りに傾動したかみそりヘッド2を第1ばね26で中立位置へ復帰付勢できるようにした。また、図10に示すヘッド枠22と同様に、傾動枠42に設けられる浮動穴44を上下方向の長溝で形成し、ばね受枠25は省略した。   FIG. 13 shows still another embodiment of the head support structure. There, a tension coil-shaped first spring 26 is disposed between the center of the lower surface of the motor holder 16 (the center of the lower surface of the razor head 2) and the inner case 10, and both first and second tilting shafts 23, 24 are arranged. The razor head 2 tilted about can be returned to the neutral position by the first spring 26. Similarly to the head frame 22 shown in FIG. 10, the floating hole 44 provided in the tilting frame 42 is formed by a vertically long groove, and the spring receiving frame 25 is omitted.

上記の実施例では、メイン刃18の内刃18aがロータリー式の内刃で構成してある場合について説明したが、メイン刃は往復動形の内刃を備えた切断刃であってもよい。モーター20は縦置き配置する必要はなく横置き配置することができる。かみそりヘッド2の中心軸線P2は、本体ケース1の中心軸線P1に対して傾斜させる必要はない。   In the above embodiment, the case where the inner blade 18a of the main blade 18 is a rotary inner blade has been described. However, the main blade may be a cutting blade having a reciprocating inner blade. The motor 20 does not need to be placed vertically and can be placed horizontally. The central axis P2 of the razor head 2 need not be inclined with respect to the central axis P1 of the main body case 1.

フレーム21は、それぞれ独立部品からなる左右一対の支持アーム30で構成することができ、その場合には橋絡部34を省略して、支持アーム30の下部に設けた装着部31を、本体ケース1の内面壁や、内ケース10に対して個別に締結固定することができる。フレーム21とばね受枠25とは、一体の部品で構成することができる。第1傾動軸23と第2傾動軸は直交する関係で配置するのが好ましいが、概ね直交する関係であってもよい。上記の実施例では橋絡部34が装着部31の一部を兼ねるようにしたが、これら両者はそれぞれ個別に設けることができる。かみそりヘッド2は、前後、左右傾動は可能であるが上下浮動は不能に支持することができる。その場合には、傾動枠42に形成する浮動穴44を、第2傾動軸24と同径の丸穴や角穴で形成して、かみそりヘッド2の昇降変位をヘッド枠22で規制するとよい。   The frame 21 can be composed of a pair of left and right support arms 30 made of independent parts. In this case, the bridge portion 34 is omitted, and the mounting portion 31 provided at the lower portion of the support arm 30 is replaced with a main body case. 1 inner wall and inner case 10 can be individually fastened and fixed. The frame 21 and the spring receiving frame 25 can be configured as an integral part. The first tilt axis 23 and the second tilt axis are preferably arranged so as to be orthogonal to each other, but may be substantially orthogonal. In the above embodiment, the bridging portion 34 serves as a part of the mounting portion 31. However, both of them can be provided individually. The razor head 2 can be supported such that it can be tilted back and forth and left and right but cannot float up and down. In that case, the floating hole 44 formed in the tilting frame 42 may be formed by a round hole or a square hole having the same diameter as the second tilting shaft 24, and the vertical displacement of the razor head 2 may be restricted by the head frame 22.

上記の実施例では、対向配置される左右一対の支持アーム30でフレーム21を構成したが、対向配置される前後一対の支持アーム30でフレーム21を構成することができる。その場合には、前後一対の第1傾動軸23でヘッド枠22を傾動可能に軸支し、左右一対の第2傾動軸24でかみそりヘッド2を傾動可能に軸支する。モーター20を本体ケース1の側に配置し、その伝動機構のみをかみそりヘッド2の側へ配置して、モーター20の回転動力をフレキシブル伝動軸を介して連結して伝動機構へ伝動することにより、内刃18aなどを駆動することができる。   In the above-described embodiment, the frame 21 is configured by the pair of left and right support arms 30 that are disposed to face each other. However, the frame 21 can be configured by the pair of front and rear support arms 30 that are disposed to face each other. In that case, the head frame 22 is pivotally supported by a pair of front and rear first tilting shafts 23, and the razor head 2 is pivotally supported by a pair of left and right second tilting shafts 24. By disposing the motor 20 on the main body case 1 side, disposing only the transmission mechanism on the razor head 2 side, and connecting the rotational power of the motor 20 via the flexible transmission shaft to transmit to the transmission mechanism, The inner blade 18a and the like can be driven.

電気かみそりの縦断正面図である。It is a vertical front view of an electric razor. 電気かみそりの正面図である。It is a front view of an electric razor. 電気かみそりの側面図である。It is a side view of an electric razor. 電気かみそりの主要部品を示す分解斜視図である。It is a disassembled perspective view which shows the main components of an electric razor. ヘッド支持構造の正面図である。It is a front view of a head support structure. 図5におけるA−A線断面図である。It is the sectional view on the AA line in FIG. 図5におけるB−B線断面図である。It is the BB sectional view taken on the line in FIG. 図7におけるC−C線断面図である。It is CC sectional view taken on the line in FIG. 図7におけるD−D線断面図である。It is the DD sectional view taken on the line in FIG. 図4におけるE−E線断面図である。It is the EE sectional view taken on the line in FIG. ヘッド支持構造の別の実施例を示す正面図である。It is a front view which shows another Example of a head support structure. 図10のヘッド支持構造の一部破断側面図である。It is a partially broken side view of the head support structure of FIG. ヘッド支持構造のさらに別の実施例を示す正面図である。It is a front view which shows another Example of a head support structure.

符号の説明Explanation of symbols

1 本体ケース
2 かみそりヘッド
10 内ケース
21 フレーム
22 ヘッド枠
23 第1傾動軸
24 第2傾動軸
25 ばね受枠
26 第1ばね
27 第2ばね
32 補強壁
33 連結部
40 ばね受ブロック
41 軸受腕
DESCRIPTION OF SYMBOLS 1 Main body case 2 Razor head 10 Inner case 21 Frame 22 Head frame 23 1st tilting shaft 24 2nd tilting shaft 25 Spring receiving frame 26 First spring 27 Second spring 32 Reinforcement wall 33 Connection part 40 Spring receiving block 41 Bearing arm

Claims (16)

内刃(4)および外刃(3)を備えたかみそりヘッド(2)が、グリップを兼ねる本体ケース(1)に対して前後、左右方向へ傾動可能にヘッド支持構造で支持されており、
ヘッド支持構造は、本体ケース(1)に固定されるフレーム(21)と、フレーム(21)で相対揺動可能に支持されるヘッド枠(22)と、フレーム(21)とヘッド枠(22)との間に設けられる第1傾動軸(23)と、ヘッド枠(22)とかみそりヘッド(2)との間に設けられる第2傾動軸(24)と、ヘッド枠(22)およびかみそりヘッド(2)を中立位置へ復帰付勢する第1ばね(26)および第2ばね(27)とを含み、
第1傾動軸(23)と第2傾動軸(24)とは、それぞれの軸中心線が互いに直交する状態で配置されており、
第1傾動軸(23)の回りに傾動するヘッド枠(22)が第1ばね(26)で中立位置へ復帰付勢され、第2傾動軸(24)の回りに傾動するかみそりヘッド(2)が第2ばね(27)で中立位置へ復帰付勢してあり、
フレーム(21)が、対向配置される一対の支持アーム(30)を備えており、
支持アーム(30)は、第1傾動軸(23)を介してヘッド枠(22)と連結される上方の連結部(33)と、本体ケース(1)に装着固定される下方の装着部(31)とを備えており、
両支持アーム(30)における装着部側の対向間隔(L2)が、本体ケース(1)の握り太さに対応して連結部(33)の対向間隔(L1)より小さく設定してある電気かみそり。
A razor head (2) having an inner blade (4) and an outer blade (3) is supported by a head support structure so as to be tiltable in the front-rear and left-right directions with respect to the main body case (1) also serving as a grip,
The head support structure includes a frame (21) fixed to the main body case (1), a head frame (22) supported by the frame (21) so as to be capable of relative swinging, and the frame (21) and the head frame (22). A first tilt shaft (23) provided between the head frame (22) and the razor head (2), a second tilt shaft (24) provided between the head frame (22) and the razor head ( 2) a first spring (26) and a second spring (27) for urging return to the neutral position;
The first tilt axis (23) and the second tilt axis (24) are arranged in a state in which the respective axis center lines are orthogonal to each other,
The razor head (2) tilted around the second tilting shaft (24) is urged by the first spring (26) to return the head frame (22) tilting around the first tilting shaft (23) to the neutral position. There Ri Thea urges return to the neutral position by the second spring (27),
The frame (21) includes a pair of support arms (30) arranged to face each other,
The support arm (30) includes an upper connecting portion (33) connected to the head frame (22) via the first tilt shaft (23), and a lower mounting portion (attached to the main body case (1)). 31) and
Both opposing distance of the mounting portion side of the support arm (30) (L2) is, Ru Thea set smaller than the opposing gap (L1) of the connecting portion corresponding to the grip thickness of the main body case (1) (33) Electrical Razor.
両支持アーム(30)の連結部(33)に連続して、補強壁(32)が横向きに張り出し形成されており、
かみそりヘッド(2)およびヘッド枠(22)に作用する外力を、第1傾動軸(23)、連結部(33)、および補強壁(32)の三者が共同して負担する請求項1記載の電気かみそり。
A reinforcing wall (32) is formed so as to extend laterally continuously to the connecting portion (33) of both support arms (30),
The external force acting on the razor head (2) and the head frame (22) is jointly borne by the first tilting shaft (23), the connecting portion (33), and the reinforcing wall (32). Electric razor.
両補強壁(32)と対向するヘッド枠(22)の下面に補強リブ(43)が形成されており、
補強リブ(43)の突端が、第1傾動軸(23)の軸中心を円弧中心とする部分円弧面で形成してある請求項2記載の電気かみそり。
Reinforcing ribs (43) are formed on the lower surface of the head frame (22) facing both the reinforcing walls (32),
The electric razor according to claim 2, wherein the protruding end of the reinforcing rib (43) is formed as a partial arc surface having the center of the first tilting shaft (23) as the arc center .
フレーム(21)が、対向配置される一対の支持アーム(30)と、両支持アーム(30)の下端どうしを繋ぐ橋絡部(34)とを一体に備えている請求項2または3記載の電気かみそり。 The frame (21) according to claim 2 or 3, wherein the frame (21) is integrally provided with a pair of support arms (30) arranged to face each other and a bridging portion (34) connecting the lower ends of the both support arms (30) . Electric razor. かみそりヘッド(2)の中心軸線(P2)が、本体ケース(1)の中心軸線(P1)に対して一方向へ傾斜させてあり、
支持アーム(30)の連結部(33)が、装着部(31)に対してかみそりヘッド(2)の中心軸線(P2)と同じ方向へ傾斜させてある請求項4記載の電気かみそり。
The central axis (P2) of the razor head (2) is inclined in one direction with respect to the central axis (P1) of the main body case (1),
The electric shaver according to claim 4, wherein the connecting portion (33) of the support arm (30) is inclined in the same direction as the central axis (P2) of the razor head (2) with respect to the mounting portion (31) .
ヘッド枠(22)の両端に支持アーム(30)の連結部(33)と対向する軸受腕(41)が設けられており、
支持アーム(30)の連結部(33)とヘッド枠(22)の軸受腕(41)とが第1傾動軸(23)で相対揺動可能に連結されており、
前記連結部(33)の上端がヘッド枠(22)の軸受腕(41)の上端より上方へ突設されていて、連結部(33)が第2傾動軸(24)の回りに傾動するかみそりヘッド(2)の傾動限界を規定する規制体を兼ねている請求項4または5記載の電気かみそり。
Bearing arms (41) facing the connecting portion (33) of the support arm (30) are provided at both ends of the head frame (22),
The connecting portion (33) of the support arm (30) and the bearing arm (41) of the head frame (22) are connected by a first tilting shaft (23) so as to be capable of relative swinging,
A razor in which the upper end of the connecting portion (33) projects upward from the upper end of the bearing arm (41) of the head frame (22), and the connecting portion (33) tilts around the second tilting shaft (24). The electric razor according to claim 4 or 5, which also serves as a regulating body that defines a tilt limit of the head (2) .
フレーム(21)とヘッド枠(22)を連結する第1傾動軸(23)の軸端が、本体ケース(1)に設けた係合穴(65)で固定支持してある請求項6記載の電気かみそり。 The shaft end of the first tilting shaft (23) connecting the frame (21) and the head frame (22) is fixedly supported by an engagement hole (65) provided in the main body case (1) . Electric razor. 両支持アーム(30)のそれぞれに、第1傾動軸(23)の中心軸線と交差する向きのばね受枠(25)が装着されており、
ばね受枠(25)の両端のばね受部(55)が本体ケース(1)に対して係合固定してある請求項1から7のいずれかに記載の電気かみそり。
A spring receiving frame (25) is mounted on each of the support arms (30) in a direction intersecting with the central axis of the first tilting shaft (23),
The electric shaver according to any one of claims 1 to 7, wherein spring receiving portions (55) at both ends of the spring receiving frame (25) are engaged and fixed to the main body case (1) .
ばね受枠(25)とヘッド枠(22)との間に、第1傾動軸(23)の回りに傾動したかみそりヘッド(2)を中立位置へ復帰付勢する第1ばね(26)が配置してある請求項8記載の電気かみそり。 Between the spring receiving frame (25) and the head frame (22), a first spring (26) for urging the razor head (2) tilted about the first tilting shaft (23) to the neutral position is disposed. The electric shaver according to claim 8 . ばね受枠(25)の両端に、ヘッド枠(22)を間に挟む状態で一対のばね受部(55)が対向配置されて、ばね受部(55)とヘッド枠(22)との間に圧縮コイル形の第1ばね(26)が配置されており、
ばね受部(55)の外面が本体ケース(1)に係合固定してある請求項9記載の電気かみそり。
A pair of spring receiving portions (55) are arranged opposite to each other at both ends of the spring receiving frame (25) with the head frame (22) sandwiched therebetween, and between the spring receiving portion (55) and the head frame (22). A first spring (26) in the form of a compression coil is arranged;
The electric shaver according to claim 9, wherein an outer surface of the spring receiving portion (55) is engaged and fixed to the main body case (1).
ヘッド枠(22)の軸受腕(41)に連続して、支持アーム(30)の補強壁(32)と上下に対向するばね受ブロック(40)が設けられており、
前記ばね受ブロック(40)とばね受部(55)との間に第1ばね26が配置してある請求項10記載の電気かみそり。
A spring receiving block (40) vertically opposite to the reinforcing wall (32) of the support arm (30) is provided continuously to the bearing arm (41) of the head frame (22).
The electric shaver according to claim 10, wherein a first spring (26) is arranged between the spring receiving block (40) and the spring receiving portion (55) .
両支持アーム(30)の補強壁(32)に、ばね受枠(25)が装着固定してある請求項8から11のいずれかに記載の電気かみそり。 The electric razor according to any one of claims 8 to 11, wherein a spring receiving frame (25) is attached and fixed to the reinforcing walls (32) of both support arms (30) . かみそりヘッド(2)とヘッド枠(22)とのいずれか一方に第2傾動軸(24)が設けられ、他方に第2傾動軸(24)で傾動可能に支持される傾動枠(42)が設けられており、
前記傾動枠(42)に、かみそりヘッド(2)とヘッド枠(22)との相対上下動作を吸収する浮動穴(44)が形成してある請求項8から12のいずれかに記載の電気かみそり。
A second tilting shaft (24) is provided on one of the razor head (2) and the head frame (22), and a tilting frame (42) supported so as to be tiltable by the second tilting shaft (24) is provided on the other. Provided,
The electric razor according to any one of claims 8 to 12, wherein the tilting frame (42) is formed with a floating hole (44) for absorbing the relative vertical movement of the razor head (2) and the head frame (22). .
内刃(4)の駆動源となるモーター(20)、およびモーター(20)を支持するモーターホルダー(16)がかみそりヘッド(2)と一体化されており、
モーターホルダー(16)の対向周面に第2傾動軸(24)が設けられ、ヘッド枠(22)に傾動枠(42)と浮動穴(44)が形成してある請求項13記載の電気かみそり。
A motor (20) serving as a drive source for the inner blade (4) and a motor holder (16) supporting the motor (20) are integrated with the razor head (2),
The electric shaver according to claim 13, wherein a second tilting shaft (24) is provided on the opposing peripheral surface of the motor holder (16), and a tilting frame (42) and a floating hole (44) are formed in the head frame (22). .
本体ケース(1)の内部に内ケース(10)が収容され、内ケース(10)の内部にモーター(20)に駆動電流を供給するための電源部が組み込まれており、
内ケース(10)にフレーム(21)の装着部(31)が装着固定してある請求項1記載の電気かみそり。
An inner case (10) is accommodated in the main body case (1), and a power supply unit for supplying a drive current to the motor (20) is incorporated in the inner case (10).
2. An electric shaver according to claim 1, wherein the mounting portion (31) of the frame (21) is mounted and fixed to the inner case (10) .
かみそりヘッド(2)に第2傾動軸(24)が設けられ、ヘッド枠(22)に第2傾動軸(24)で傾動可能に支持される傾動枠(42)が設けられており、
前記傾動枠(42)に、かみそりヘッド(2)とヘッド枠(22)との相対上下動作を吸収する浮動穴(44)が形成されており、
本体ケース(1)と傾動枠(42)との間に、第1傾動軸(23)の回りに傾動したかみそりヘッド(2)を中立位置へ復帰付勢する圧縮コイル形の第1ばね(26)が配置してある請求項13記載の電気かみそり。
The razor head (2) is provided with a second tilting shaft (24), and the head frame (22) is provided with a tilting frame (42) supported so as to be tiltable by the second tilting shaft (24),
The tilting frame (42) is formed with a floating hole (44) for absorbing the relative vertical movement of the razor head (2) and the head frame (22),
A compression coil type first spring (26) which urges the razor head (2) tilted about the first tilting shaft (23) to return to the neutral position between the main body case (1) and the tilting frame (42). The electric shaver according to claim 13 is arranged .
JP2007138337A 2007-05-24 2007-05-24 Electric razor Expired - Fee Related JP5024822B2 (en)

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