公开(公告)号：US5189792A

公开(公告)日：1993-03-02

申请号：US807591

申请日：1991-12-16

申请人： Kiyotaka Otsuka ,  Kenzo Shirakawa ,  Masakazu Kita ,  Masao Tanahashi ,  Jyuzaemon Iwasaki

发明人： Kiyotaka Otsuka ,  Kenzo Shirakawa ,  Masakazu Kita ,  Masao Tanahashi ,  Jyuzaemon Iwasaki

IPC分类号： B26B19/04 ,  B26B19/10 ,  B26B19/38

CPC分类号： B26B19/046 ,  B26B19/38 ,  B26B19/3853 ,  B26B19/102

摘要： A reciprocatory cutter head includes a pair of cutter heads mounted to a head frame. Each of the cutter heads is of elongated configuration extending horizontally to define a longitudinal axis and have opposed longitudinal ends. The cutter head includes an elongated outer shearing foil which comes into hair shearing engagement with an inner cutter driven to reciprocate along the longitudinal axis. The cutter heads are floatingly supported to the head frame in such a manner that the cutter heads are vertically movable relative to the head frame independently from each other as well as that each of the cutter heads is vertically movable at one longitudinal end substantially independently of the other longitudinal end. Whereby, the cutter heads cooperate with each other to readily conform to the shapes of a user's skin with maximum skin engaging area for assuring enhanced shaving performance, particularly at the irregularly contoured portions of the skin.

摘要翻译： 往复式刀头包括安装到头架上的一对刀头。 每个刀头具有水平延伸的细长构型以限定纵向轴线并且具有相对的纵向端部。 刀头包括细长的外剪切箔，其与被驱动以沿纵向轴线往复运动的内刀片进行头发剪切接合。 刀头以这样的方式浮动地支撑到头架上，使得刀头相对于头架相互独立地可垂直移动，并且每个刀头可在一个纵向端上垂直移动，大体上独立于 其他纵向端。 由此，刀头彼此配合以便容易地符合用户皮肤的形状，并具有最大的皮肤接合面积，以确保增强的剃刮性能，特别是在皮肤的不规则轮廓部分。

公开(公告)号：US5473818A

公开(公告)日：1995-12-12

申请号：US155218

申请日：1993-11-22

申请人： Kiyotaka Otsuka ,  Jyuzaemon Iwasaki ,  Hikoyoshi Nakagawa

发明人： Kiyotaka Otsuka ,  Jyuzaemon Iwasaki ,  Hikoyoshi Nakagawa

IPC分类号： B26B19/04 ,  B26B19/10 ,  B26B19/38 ,  B26B19/12

CPC分类号： B26B19/384 ,  B26B19/04 ,  B26B19/10

摘要： A dry shaver includes a perforated outer shearing foil and an inner cutter. The outer shearing foil has a first axis along which it is arcuately curved. The inner cutter has a longitudinal axis along which it is arcuately curved to have an arcuate contour in conformity with the outer shearing foil and is driven to reciprocate in hair shearing engagement with the outer shearing foil. The inner cutter comprises a plurality of inner blades which are spaced along the longitudinal axis in parallel relation to each other, each of the blades having opposed first and second faces each defining a cutting edge at its upper end so that the individual cutting edges are cooperative to define the arcuate contour. Each inner blade, which is offset from a longitudinal center of the inner cutter, is formed with a first face directing outwardly in the offset direction with an undercut immediately adjacent to the cutting edge. The undercut cooperates with the adjacent cutting edge to give an first rake angle .beta. with respect to the vertical plane as well as to give a true rake angle .delta. with respect to a plane normal to the curvature of the arcuate contour of the inner cutter at the contact between the adjacent cutting edge and the outer shearing foil.

摘要翻译： 干式剃须刀包括穿孔的外剪切箔和内刀。 外剪切箔具有第一轴线，其沿弧线弯曲。 内切割器具有纵向轴线，沿着该纵向轴线弧形弯曲以具有与外剪切箔一致的弓形轮廓，并被驱动以与外剪切箔片发生剪切接合而往复运动。 内切刀包括沿着纵向轴线彼此间隔开的多个内刀片，每个刀片具有相对的第一和第二表面，每个刀片在其上端限定切削刃，使得各个切削刃是协作的 定义弓形轮廓。 每个内刀片从内刀片的纵向中心偏移，形成有一个第一面，该第一面在偏移方向上向外引导，并且紧邻切割刃的底切。 底切与相邻的切割刃配合，以相对于垂直平面给出第一前角β，并且相对于垂直于内刀具的弧形轮廓的曲率的平面给出真正的前角三角形 相邻切削刃与外剪切箔之间的接触。

公开(公告)号：US5463813A

公开(公告)日：1995-11-07

申请号：US148566

申请日：1993-11-08

申请人： Kiyotaka Otsuka ,  Jyuzaemon Iwasaki

发明人： Kiyotaka Otsuka ,  Jyuzaemon Iwasaki

IPC分类号： B26B19/04 ,  B26B19/02 ,  B26B19/12

CPC分类号： B26B19/02

摘要： A dry shaver includes a housing mounting thereon a cutter head which comprises a perforated outer shearing foil and an inner cutter. The outer shearing foil has a first axis along which it is arcuately curved. The inner cutter has a longitudinal axis along which it is arcuately curved to have an arcuate contour in conformity with the outer shearing foil. Projecting from the housing is a drive arm which is connected to reciprocate the inner cutter along a reciprocation path parallel to the first axis in hair shearing engagement with the outer shearing foil so that the inner cutter moves to and fro between two end positions spaced along the reciprocation path and defining therebetween a central position. A spring is provided to floatingly support the inner cutter to the drive arm for biasing the inner cutter against the outer shearing foil. The inner cutter is configured to satisfy the following relation that 0.5

摘要翻译： 干式剃须刀包括安装在其上的壳体，其包括穿孔的外剪切箔和内切割器。 外剪切箔具有第一轴线，其沿弧线弯曲。 内切割器具有纵向轴线，沿着该纵向轴线弧形弯曲以具有与外剪切箔一致的弓形轮廓。 从壳体突出的是驱动臂，该驱动臂连接成沿着与第一轴线平行的往复运动路径使内刀片与外剪切箔头发剪切接合而往复运动，使得内刀片沿着 往复运动路径并在其间限定中心位置。 提供弹簧以将内切割器浮动地支撑到驱动臂，以将内刀片偏压抵靠外剪切箔。 内刀片被配置为满足以下关系：0.5

公开(公告)号：US4493149A

公开(公告)日：1985-01-15

申请号：US418083

申请日：1982-09-14

申请人： Masao Tanahashi ,  Toshio Tanabe ,  Kiyotaka Otsuka

发明人： Masao Tanahashi ,  Toshio Tanabe ,  Kiyotaka Otsuka

IPC分类号： B26B19/04 ,  B26B19/38

CPC分类号： B26B19/384 ,  B26B19/04

摘要： Reciprocal blade assembly of electric shaver having means for positively shaving specifically such long beard hair as ones extending along user's face skin or curling which are hard to shave, in addition to ordinary beard hair easy to shave. The means comprises an elongated bent part and slit-shaped hair inlet apertures made in an outer blade of a flexible steel foil fixed as bent semicylindrically to the shaver's head, the bent part being parallel to the longitudinal axis of the blade and the slit-shaped apertures substantially transversing the bent part, and an undulated part corresponding to the bent part and made in respective arcuate cutting blade edges of an inner cutter driven reciprocally to slide at the edges along the inner surface of the outer blade. Other hair inlet apertures made in the outer blade on both sides of the bent part for shaving mainly the ordinary hair are made, for example, to vary in diameter to gradually reduce rigidity against the bending of the outer blade as farther separated sideward from the bent part, whereby intimate contact between the semicylindrically bent outer blade and the inner cutter blade edges is maintained.

摘要翻译： 电动剃须刀的交互式刀片组件具有如下特征：具有这样的长胡须头发的装置，其特征在于，除了容易刮胡子的普通胡须之外，还可以沿着使用者的脸部皮肤或难以剃毛的卷曲延伸。 该装置包括细长的弯曲部分和狭缝状的头发入口孔，其形成在柔性钢箔的外刀片中，该外部刀片固定成与剃须刀头部半圆形弯曲，弯曲部分平行于刀片的纵向轴线并且形状为狭缝状 基本上横切弯曲部分的孔，以及对应于弯曲部分的波纹部分，并且被制成在内刀片的相应弧形切割刀片边缘中，该内刀片沿着外刀片的内表面往复运动以在边缘处滑动。 另外，在弯曲部的两侧的外侧叶片中形成的主要是普通毛发的其他毛发入口孔例如直径变化，从而逐渐降低与外侧刀片的弯曲相反的刚性 从而保持半圆柱形弯曲的外刀片和内刀片刀刃之间的紧密接触。

公开(公告)号：US4413410A

公开(公告)日：1983-11-08

申请号：US321749

申请日：1981-11-16

申请人： Kiyotaka Otsuka ,  Masao Tanahashi

发明人： Kiyotaka Otsuka ,  Masao Tanahashi

IPC分类号： B26B19/14

CPC分类号： B26B19/143 ,  B26B19/141

摘要： A rotary type electric shaver, having an inner cutter and a shaving head mounted thereover; the inner cutter including a rotatable base having receiving slits radially about its axis of rotation; the inner cutter also including a cutter blade inserted in each receiving slit, each cutter blade having a cutting edge and a leg portion, the leg portion terminating in a distal edge having at least one receiving notch and a receiving hole, the receiving hole being located closer to the axis of rotation of rotatable base than that receiving notch; the inner cutter also including a spring assembly for each receiving slit, each spring assembly having at least two spring portions, one end of each spring portion being fixed to the lower surface of the rotatable base, the other end of one of the spring portions engaging the receiving hole and exerting a downward force thereon, the end of the other spring portion engaging the receiving notch and exerting an upward force thereon; the shaving head including a thin, perforated comb; the cutting edge of each cutter blade bearing against the lower surface of the comb; the net upward force on the receiving notch being such that a uniform contact pressure between the cutting edge of each cutter blade against the lower surface of the comb is maintained along the entire cutting edge during operation of the shaver.

摘要翻译： 一种旋转式电动剃须刀，其具有安装在其上的内切刀和剃头; 所述内切割器包括具有围绕其旋转轴线径向接收狭缝的可旋转基座; 所述内刀具还包括插入在每个接收狭缝中的切割刀片，每个刀片具有切割边缘和腿部部分，所述腿部终止于具有至少一个接收凹口和接收孔的远侧边缘中，所述接收孔位于 更接近可旋转基座的旋转轴线; 所述内刀片还包括用于每个接收狭缝的弹簧组件，每个弹簧组件具有至少两个弹簧部分，每个弹簧部分的一端固定到所述可旋转底座的下表面，所述一个弹簧部分的另一端接合 所述接收孔在其上施加向下的力，所述另一个弹簧部分的端部接合所述接收凹口并在其上施加向上的力; 剃须头包括一个薄的穿孔梳子; 每个切割刀片的切割边缘抵靠梳​​子的下表面; 在接收槽口处的净向上的力使得在剃须刀的操作期间沿着整个切割刃保持每个切割刀片的切割边缘与梳子的下表面之间的均匀的接触压力。

公开(公告)号：US4926552A

公开(公告)日：1990-05-22

申请号：US292015

申请日：1988-12-30

申请人： Kiyotaka Otsuka ,  Hideji Wataya

发明人： Kiyotaka Otsuka ,  Hideji Wataya

IPC分类号： B26B19/04 ,  B26B19/10

CPC分类号： B26B19/04 ,  B26B19/102

摘要： A cutting head for reciprocatory-type shavers comprises a mount frame carrying a shearing foil and an inner cutter driven to reciprocate in shearing contact with the shearing foil. The mount frame has a pair of opposed side bars between which the shearing foil extends in a convexly shaped manner to have its longitudinal axis extending along the apex of the shearing foil and in parallel with the side bars. The inner cutter is driven to reciprocate along the longitudinal axis and is mounted to be movable to a limited extent laterally towards the side bars. The opposite lower end or the lateral end portions of the shearing foil are secured to the outside surfaces the side bars, respectively such that each of the side bars is interposed between the inner cutter and the lower end portion of the shearing foil. Consequently, the portions can be prevented from contacting directly with and scratched or damaged by the inner cutter even when the inner cutter is forced to move laterally towards the side bar together with the shearing foil as a result of the latter being pressed against the skin of the user during the shaving operation.

摘要翻译： 用于往复式剃须刀的切割头包括承载剪切箔的安装框架和被驱动以与剪切箔剪切接触往复运动的内刀片。 安装框架具有一对相对的侧杆，剪切箔以凸形方式延伸，其纵向轴线沿着剪切箔的顶点延伸并且与侧杆平行。 内刀片被驱动以沿着纵向轴线往复运动，并且被安装成可横向朝侧杆移动到有限的程度。 剪切箔的相对的下端或侧端部分别固定到侧杆的外表面，使得每个侧杆都插入剪切箔的内切割器和下端部之间。 因此，即使当内刀片与剪切箔一起被迫横向移向侧杆时，也可以防止这些部分与内刀具直接接触和刮伤或损坏，这是因为它们被压在皮肤上 用户在剃须操作期间。

公开(公告)号：US5490328A

公开(公告)日：1996-02-13

申请号：US247583

申请日：1994-05-23

申请人： Yasunori Ueda ,  Kiyotaka Otsuka

发明人： Yasunori Ueda ,  Kiyotaka Otsuka

IPC分类号： B26B19/04 ,  B26B19/10 ,  B26B19/42

CPC分类号： B26B19/102 ,  B26B19/046 ,  B26B19/10

摘要： A dry shaver has a housing with a head frame floatingly supporting an outer shearing foil. An associated inner cutter is driven to move in hair shearing engagement with the outer shearing foil. The head frame is formed with a stopper which is in use adapted to come into contact with a user's skin. The shaver is characterized in that the outer shearing foil is supported to the head frame by means of a floating mechanism which, when the outer shearing foil is depressed at a given portion by contact with the user's skin, allows an upper end of the depressed portion of the outer shearing foil to displace down beyond the stopper such that the stopper comes into contact with the skin for bearing the depressing force.

摘要翻译： 干式剃须刀具有一个外壳，头部框架浮动地支撑外部剪切箔。 驱动相关联的内切割器以与外剪切箔发生剪切接合。 头部框架形成有用于适应于与使用者的皮肤接触的止挡件。 所述剃须刀的特征在于，所述外剪切箔通过浮动机构支撑在所述头框架上，当所述外剪切箔通过与使用者​​的皮肤接触而在给定部分处被压下时，允许所述凹陷部分的上端 的外剪切箔向下移动超过止动件，使得止动件与皮肤接触以承受压力。