WO2021128438A1 - 一种旋转式网膜电动剃须刀 - Google Patents

一种旋转式网膜电动剃须刀 Download PDF

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Publication number
WO2021128438A1
WO2021128438A1 PCT/CN2020/000303 CN2020000303W WO2021128438A1 WO 2021128438 A1 WO2021128438 A1 WO 2021128438A1 CN 2020000303 W CN2020000303 W CN 2020000303W WO 2021128438 A1 WO2021128438 A1 WO 2021128438A1
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Prior art keywords
knife
inner knife
blade
electric shaver
rotary
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PCT/CN2020/000303
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English (en)
French (fr)
Inventor
黄勇辉
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黄勇辉
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Priority claimed from CN201911353624.0A external-priority patent/CN113021427A/zh
Application filed by 黄勇辉 filed Critical 黄勇辉
Publication of WO2021128438A1 publication Critical patent/WO2021128438A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
    • B26B19/14—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers of the rotary-cutter type; Cutting heads therefor; Cutters therefor
    • B26B19/16—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers of the rotary-cutter type; Cutting heads therefor; Cutters therefor involving a knife cylinder or a knife cone or separate cutting elements moved like a rotating cylinder or a rotating cone

Definitions

  • the invention relates to a rotary retina electric shaver, in particular to an outer knife which is a retina, that is, the outer knife is formed by bending a thin plate, the inner knife is an electric shaver with a rotating movement, and the inner knife blade cuts through The beard hair of the outer knife beard introduction hole and the inner knife blade hole.
  • the rotary electric shaver consists of one or more shaving heads, and each group of shaving heads has It has an outer knife, an inner knife and a driving device for the inner knife.
  • the outer knife is provided with a plurality of beard introduction holes. When the beard hair enters the beard introduction hole, it is cut by the inner knife blade to achieve the purpose of shaving.
  • the rotary electric shaver has its own weaknesses. Due to the limitation of the structure of the rotary electric shaver, the beard introduction hole on the outer knife is limited, so the shave area is not large. In addition, the beard introduction hole of the outer knife should not be too shallow, that is, the thickness of the outer knife plate where the beard introduction hole is located cannot be too thin, so the stubble of the beard after shaving is longer.
  • the other is a reciprocating electric shaver.
  • the outer knife is composed of a combination of an outer knife (especially a net-mode outer knife) and an inner knife, and the upper part of the inner knife assembly is close to the lower part of the outer knife.
  • the inner knife is driven by the motor to reciprocate through the eccentric shaft riveted on the motor shaft.
  • the inner knife assembly cuts through the beard introduction hole on the outer knife.
  • the outer knife is also a retina-type outer knife
  • the inner knife is machined with a bar-shaped groove-shaped blade.
  • the inner cutter of this electric shaver is difficult to process, especially the processing cost is high, and it consumes more steel, and it is also difficult to machine the inner cutter blade with a sharp edge. Therefore, this type of electric shaver is lacking in terms of cost, energy consumption, or shaving efficiency.
  • the rotary retina electric shaver of the present invention takes into account that the reciprocating electric shaver has more beard introduction holes, more inner blades, and no long beard stubble. , High efficiency, low noise and smooth movement of the rotary electric shaver.
  • the purpose of the present invention is to overcome the defects of the prior art by providing an outer knife with more beard introduction holes and a thinner plate, and an inner knife with a sharp edge, and an electric shaver with a rotating inner knife. Shaver. At the same time, there are many inner blades, which have the advantages of high efficiency, low noise, short beard stubble, and smooth movement.
  • a rotary omental electric shaver comprising an outer knife, and an inner knife under the outer knife that closely adheres to the bottom of the outer knife and rotates around the center of rotation.
  • the outer knife is bent to protrude upward when viewed from the direction of the center of rotation
  • the thin plate has a plurality of beard introduction holes penetrating the thin plate in the thickness direction
  • the inner knife is formed by bending the plate and has a cylindrical structure
  • the plate has a plurality of penetrating plates.
  • the thickness of the inner knife blade hole is formed by stamping a sheet material, and at least one side of the inner knife blade hole is an inner knife blade.
  • the multiple beard introduction holes on the outer knife penetrating the thin plate in the plate thickness direction are rectangular narrow holes, and the long sides of the rectangular narrow holes are not perpendicular to the center of rotation.
  • the inner knife has more than two rows of inner knife edge holes in the axial direction of the inner knife axis, and at least one side of each of the inner knife edge holes is an inner knife edge.
  • the blade of the inner knife is parallel to the axis of the inner knife.
  • the included angle between the side surface of the inner knife blade and the cylindrical surface of the inner knife at the tangent line at the inner knife blade is less than 90°.
  • the side surface of the inner knife blade has a curved structure.
  • the size from the blade of the inner knife to the axis of the inner knife is larger than the size from the cylindrical surface of the inner knife plate to the axis of the inner knife.
  • the inner knife is formed by combining two plates, the plate has a semicircular structure, and the semicircular plate has a plurality of inner knife blade holes penetrating the thickness of the plate, and each of the inner knife blade holes There is at least one inner knife edge in it.
  • the two ends of the inner knife are respectively engaged with a right fixing frame and a left fixing frame
  • the right fixing frame is provided with a driving device detachably connected to the power source
  • the right fixing frame and the left fixing frame are respectively arranged
  • the inner knife blade is formed by removing material after the plate is punched by a punching die.
  • the present invention has the following beneficial effects: the rotary retina electric shaver of the present invention has the advantages of high efficiency, low noise, short stubble on the beard, and smooth movement.
  • Figure 1 is a three-dimensional analysis view of the cutter head of a rotary omental electric shaver of the present invention
  • Figure 2 is a cross-sectional view of the cutter head of a rotary omental electric shaver of the present invention
  • Figure 3 is a perspective view of an electric shaver with a rotary omental electric shaver head of the present invention
  • FIG. 4 is a cross-sectional view of a blade with two inner blades in a single inner blade hole in the inner blade of a rotary omental electric shaver according to the present invention
  • Figure 5 is a cross-sectional view of the inner blade of a rotary omental electric shaver of the present invention with an arc-shaped structure on the side of the inner blade;
  • FIG. 6 is a perspective view of the inner knife of the rotary omental electric shaver of the present invention in which the size from the inner knife blade to the inner knife axis is larger than the size from the cylindrical surface of the inner knife sheet to the inner knife axis;
  • FIG. 7 is a cross-sectional view of the inner knife of the rotary omental electric shaver of the present invention in which the size from the inner knife blade to the inner knife axis is larger than the size from the cylindrical surface of the inner knife sheet to the inner knife axis;
  • FIG. 8 is a perspective view of the outer knife with a rectangular narrow hole in the outer knife beard introduction hole of a rotary omental electric shaver according to the present invention
  • FIG. 9 is a three-dimensional analysis view of the inner blade of a rotary omental electric shaver of the present invention in which the inner blade is composed of two plates;
  • the three-dimensional analytical view and cross-sectional view of the cutter head of a rotary omental electric shaver of the present invention As shown in the figure, the upper part of the inner knife is close to the bottom of the outer knife, and the inner knife rotates around the center of rotation. .
  • the outer knife is composed of a thin plate that is bent into an upward convex shape when viewed from the direction of the center of rotation.
  • the thin plate has a plurality of whisker introduction holes penetrating the thin plate in the thickness direction.
  • the inner knife is formed by bending the plate and has a cylindrical structure.
  • the plate has a plurality of inner knife edge holes penetrating the thickness of the plate, the inner knife edge holes are formed by stamping the plate, and at least one side of the inner knife edge holes is an inner knife edge.
  • the inner knife blade hole is punched from the plate through a stamping die and then processed.
  • the stamping process includes bending, stretching, etc. After the stamping process, heat treatment is performed as needed, and then the material is removed, and then it is bent and formed on the stamping die.
  • the stamping dies are highly efficient.
  • the rotating movement of the cutter head is more stable and quiet.
  • the inner cutter blade holes in the figure are arranged neatly, and the actual application is not limited to this.
  • Both ends of the inner knife are respectively engaged with a right fixing frame and a left fixing frame.
  • the right fixing frame is provided with a driving device detachably connected to the power source, and the right fixing frame and the left fixing frame are respectively provided with a cylindrical shape.
  • the right fixing frame and the left fixing frame that are engaged with the inner knife simultaneously serve as the rotating shaft of the inner knife, and the right fixing frame or the left fixing frame can be set in a detachable connection structure.
  • each inner knife blade hole can have two inner knife blades, as shown in the present embodiment, each inner knife blade hole of the quadrilateral shape has two The inner knife blade. Respectively suitable for use in forward and reverse rotation. Furthermore, any side of the inner knife blade hole that is not perpendicular to the center of rotation can be made into an inner knife blade.
  • the size from the inner knife edge to the inner knife axis is larger than the size from the cylindrical surface of the inner knife sheet to the inner knife axis, and the contact area of the inner knife and the outer knife at this time Less, thus reducing friction.
  • the whisker introduction hole of the outer knife is provided with a rectangular narrow hole.
  • This structure is more convenient for long beards to enter.
  • the rectangular narrow hole is perpendicular to the center of rotation d or more Inclined at a small angle, the length of the narrow side is 0.2-0.5mm.
  • the beard introduction hole can be arranged in a special shape.
  • the inner knife is composed of two or more plates.
  • Two or more plates are composed of a right fixing frame and a left fixing frame respectively, and the right fixing frame and the left fixing frame can be set to be detachably connected.
  • the beneficial effects of the present invention compared with the prior art are: the rotary retina electric shaver of the present invention takes into account the more beard introduction holes of the reciprocating electric shaver, and the inner blade is also More, the stubble of the beard is not long, the efficiency is high, and the rotary electric shaver has the advantages of low noise and stable movement.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dry Shavers And Clippers (AREA)

Abstract

一种旋转式网膜电动剃须刀，包括外刀，和在外刀下方紧贴外刀底部绕旋转中心旋转的内刀，所述的外刀由被弯曲成从旋转中心方向观察呈向上凸起形状的薄板材构成，所述的薄板材具有在板厚方向贯穿薄板材的多个胡须导入孔，所述的内刀由板材弯曲构成，呈圆柱状结构，所述的板材具有多个贯穿板材厚度的内刀刀刃孔，所述的内刀刀刃孔由板材冲压构成，所述的内刀刀刃孔中至少有一边是内刀刀刃。

Description

一种旋转式网膜电动剃须刀 1.技术领域
本发明涉及一种旋转式网膜电动剃须刀，特别指一种外刀为网膜，即外刀由薄板材弯曲构成，内刀为旋转运动的电动剃须刀，内刀刀刃切断穿过外刀胡须导入孔和内刀刀刃孔的胡须毛发。
背景技术
公知的现在市场上有两种流行的电动剃须刀，其中一种是旋转式电动剃须刀，旋转式电动剃须刀具有一到多个剃须刀头组成，每组剃须刀头都具有一个外刀、一个内刀以及内刀的驱动装置，外刀上具有多个胡须导入孔，当胡须毛发进入胡须导入孔时，被内刀刀刃切断从而达到了剃须的目的。但是旋转式电动剃须刀有其自身的弱点，由于旋转式电动剃须刀结构所限，外刀上的胡须导入孔有限，因此剃须面积不大。而且外刀胡须导入孔不宜太浅，即胡须导入孔所在的外刀板厚不能太薄，因而剃须后的胡须留茬较长。
另外一种是往复式电动剃须刀，其外刀是由外刀(特别是网模式的外刀)和内刀组合构成，内刀组合上部紧贴外刀下部。内刀由电机通过铆合在电机轴上的偏心轴驱动其往复运动。内刀组合切断穿过外刀上的胡须导入孔。此类电动剃须刀的胡须导入孔虽然较多，内刀刀刃也较多，胡须留茬也不长。但是有个比较明显的缺点，就是往复运动的噪音大，内刀组合不断的处在加速减速之间，能耗损失大。而且内刀的刀刃很难做成锋利的刃口，不利于切断胡须。
还有一种是旋转式的网膜电动剃须刀，其外刀也是由网膜式的外刀，内刀由棒形的刚才经过机械加工出槽状刀刃。这种电动剃须刀的内刀加工难度大，特别是加工成本高，而且要消耗较多的钢材，还有就是内刀刀刃也很难加工出锋利的刃口。所以此类电动剃须刀无论是从成本或者是能耗，还是剃须效率来看都比较欠缺。
鉴于上述电动剃须刀的缺点，本发明的一种旋转式网膜电动剃须刀兼顾了往复式电动剃须刀的胡须导入孔较多，内刀刀刃也较多，胡须留茬也不长、效率高以及旋转 式电动剃须刀的噪音低、运动平稳等优点。
发明内容
本发明的目的在于为克服现有技术的缺陷，提供了一种有着胡须导入孔较多，较薄板材构成的外刀，以及有着锋利刃口的内刀刀刃，旋转运动的内刀的电动剃须刀。同时内刀刀刃也较多，有效率高以及噪音低、胡须留茬短、运动平稳优点。
为实现上述目的，本发明采用以下技术方案：
一种旋转式网膜电动剃须刀，包括外刀，和在外刀下方紧贴外刀底部绕旋转中心旋转的内刀，所述的外刀由被弯曲成从旋转中心方向观察呈向上凸起形状的薄板材构成，所述的薄板材具有在板厚方向贯穿薄板材的多个胡须导入孔，所述的内刀由板材弯曲构成，呈圆柱状结构，所述的板材具有多个贯穿板材厚度的内刀刀刃孔，所述的内刀刀刃孔由板材冲压构成，所述的内刀刀刃孔中至少有一边是内刀刀刃。
外刀上的在板厚方向贯穿薄板材的多个的胡须导入孔为长方形窄孔，长方形窄孔的长边不垂直于旋转中心。
所述的内刀在内刀轴心的轴向上具有两排以上的内刀刀刃孔，所述的每个内刀刀刃孔中至少有一边为内刀刀刃。
所述的内刀刀刃平行于内刀轴心。
所述的内刀刀刃侧面与内刀圆柱面在内刀刀刃处的切线的夹角小于90°。
所述的内刀刀刃侧面为弧面形状结构。
所述的内刀刀刃到内刀轴心的尺寸大于内刀板材圆柱面到内刀轴心的尺寸。
所述的内刀由两块板材组合而成，所述的板材呈半圆状结构，所述的半圆状板材上具有贯穿板材厚度的多个内刀刀刃孔，所述的每个内刀刀刃孔中至少有一个内刀刀刃。
所述的内刀两端面分别卡合有右固定架和左固定架，所述的右固定架上设置有与动力源可分离连接的驱动装置，所述的右固定架和左固定架分别设置有圆柱状的右轴和左轴。
所述的内刀刀刃为由板材经冲压模具冲压后去除材料构成。
本发明与现有技术相比的有益效果是：本发明的一种旋转式网膜电动剃须刀，具有效率高以及噪音低、胡须留茬短、运动平稳优点。
下面结合附图和具体实施例对本发明作进一步描述。
附图说明
图1是本发明一种旋转式网膜电动剃须刀的刀头立体解析图；
图2是本发明一种旋转式网膜电动剃须刀的刀头剖视图；
图3是具有本发明一种旋转式网膜电动剃须刀刀头的电动剃须刀立体图；
图4是本发明一种旋转式网膜电动剃须刀的内刀中单个内刀刀刃孔具有两个内刀刀刃的刀头的剖视图；
图5是本发明一种旋转式网膜电动剃须刀的内刀刀刃侧面为圆弧状结构的内刀剖视图；
图6是本发明一种旋转式网膜电动剃须刀的内刀中内刀刀刃到内刀轴心的尺寸大于内刀板材圆柱面到内刀轴心的尺寸的立体图；
图7是本发明一种旋转式网膜电动剃须刀的内刀中内刀刀刃到内刀轴心的尺寸大于内刀板材圆柱面到内刀轴心的尺寸的剖视图；
图8是本发明一种旋转式网膜电动剃须刀的外刀胡须导入孔为长方形窄孔的外刀立体图；
图9是本发明一种旋转式网膜电动剃须刀的内刀由两块板材组合而成的内刀立体解析图；
附图标记说明
1  内刀   11  内刀刀刃孔   12  内刀刀刃
13  圆弧状侧面    14  内刀板材圆柱面    2  外刀
21  胡须导入孔    22  外刀底部   23  外刀固定条
3   右固定架    31  右轴   32  可分离连接的驱动装置
4   左固定架    41  左轴   5  外刀座
6   具有本发明一种旋转式网膜电动剃须刀刀头的电动剃须刀
a   内刀刀刃侧面与内刀圆柱面在内刀刀刃处的切线的夹角
b   内刀刀刃到内刀轴心的尺寸
c   内刀板材圆柱面到内刀轴心的尺寸
d   旋转中心
具体实施方式
为了更充分理解本发明的技术内容，下面结合具体实施例和说明书附图(附图仅通过示意图表示本发明的结构，其形状、大小、比例与实际应用时是有所不同的)对本发明的技术方案进一步介绍和说明，但不局限于此。
如图1至图2所示，本发明的一种旋转式网膜电动剃须刀的刀头立体解析图和剖视图，如图所示内刀上部紧贴外刀底部，内刀绕旋转中心旋转。外刀由被弯曲成从旋转中心方向观察呈向上凸起形状的薄板材构成，薄板材具有在板厚方向贯穿薄板材的多个胡须导入孔，内刀由板材弯曲构成，呈圆柱状结构，板材具有多个贯穿板材厚度的内刀刀刃孔，内刀刀刃孔由板材冲压构成，所述的内刀刀刃孔中至少有一边是内刀刀刃。当胡须穿过外刀胡须导入孔以及内刀内刀刀刃孔时，胡须被旋转的内刀刀刃切断。内刀刀刃孔由板材经过冲压模具冲压并后加工出来，冲压工艺包括折弯、拉伸等，冲压工艺后还根据需要进行热处理，然后去除材料，后在在冲压模具上弯曲成型。冲压模具效率高。刀头的旋转运动更平稳安静。刀轴心的轴向上具有两排以上的内刀刀刃孔，图中的内刀刀刃孔排列整齐，实际应用中并不局限于此。
内刀两端面分别卡合有右固定架和左固定架，所述的右固定架上设置有与动力源可分离连接的驱动装置，所述的右固定架和左固定架分别设置有圆柱状的右轴和左轴。 内刀卡合的右固定架和左固定架同时作为内刀的转轴，右固定架或左固定架可以设置为可分离连接的结构。
更进一步的，如图4、5所示的内刀剖视图，每个内刀刀刃孔内可以有两条内刀刀刃，如本实施例所示的四边形状的每个内刀刀刃孔有两条内刀刀刃。分别适合正反向旋转时使用。更进一步的只要是内刀刀刃孔的任何一条与旋转中心不垂直的边都可以做成内刀刀刃。
更进一步的，如图6、7所示的内刀中内刀刀刃到内刀轴心的尺寸大于内刀板材圆柱面到内刀轴心的尺寸，此时的内刀与外刀运动接触面积较少，因而减少摩擦力。
更进一步的，如图8所示的外刀立体图，外刀的胡须导入孔设置成长方形窄孔，这种结构更方便长须进入，一般地，长方形窄孔与旋转中心d相垂直或者以较小的角度倾斜，窄边长度0.2-0.5mm。更进一步的，胡须导入孔可以设置成异形形状。
更进一步的，如图9所示的内刀立体解析图，内刀由两个或者两个以上的板材组成。两个或者两个以上的板材组成分别卡合有右固定架和左固定架，右固定架和左固定架可以设置成可分离连接。
综上所述，本发明与现有技术相比的有益效果是：本发明的一种旋转式网膜电动剃须刀兼顾了往复式电动剃须刀的胡须导入孔较多，内刀刀刃也较多，胡须留茬也不长、效率高以及旋转式电动剃须刀的噪音低、运动平稳优点。
以上所述仅以实施例来进一步说明本发明的技术内容，以便于读者更容易理解，但不代表本发明的实施方式仅限于此。本发明的保护范围以权利要求书为准。

Claims (10)

  1. 一种旋转式网膜电动剃须刀，包括外刀，和在外刀下方紧贴外刀底部绕旋转中心旋转的内刀，
    其特征在于，所述的外刀由被弯曲成从旋转中心方向观察呈向上凸起形状的薄板材构成，所述的薄板材具有在板厚方向贯穿薄板材的多个胡须导入孔，
    所述的内刀由板材弯曲构成，呈圆柱状结构，所述的板材具有多个贯穿板材厚度的内刀刀刃孔，所述的内刀刀刃孔由板材冲压构成，所述的内刀刀刃孔中至少有一边是内刀刀刃。
  2. 根据权利要求1所述的一种旋转式网膜电动剃须刀，其特征在于，外刀上的在板厚方向贯穿薄板材的多个的胡须导入孔为长方形窄孔，长方形窄孔的长边不垂直于旋转中心。
  3. 根据权利要求1所述的一种旋转式网膜电动剃须刀，其特征在于，所述的内刀在内刀轴心的轴向上具有两排以上的内刀刀刃孔，所述的每个内刀刀刃孔中至少有一边为内刀刀刃。
  4. 根据权利要求1或3所述的一种旋转式网膜电动剃须刀，其特征在于，所述的内刀刀刃平行于内刀轴心。
  5. 根据权利要求1或3所述的一种旋转式网膜电动剃须刀，其特征在于，所述的内刀刀刃侧面与内刀圆柱面在内刀刀刃处的切线的夹角小于90°。
  6. 根据权利要求1或3所述的一种旋转式网膜电动剃须刀，其特征在于，所述的内刀刀刃侧面为弧面形状结构。
  7. 根据权利要求1或3所述的一种旋转式网膜电动剃须刀，其特征在于，所述的内刀刀刃到内刀轴心的尺寸大于内刀板材圆柱面到内刀轴心的尺寸。
  8. 根据权利要求1中任一项所述的一种旋转式网膜电动剃须刀，其特征在于，所述的内刀由两块板材组合而成，所述的板材呈半圆状结构，所述的半圆状板材上具有贯穿板材厚度的多个内刀刀刃孔，所述的每个内刀刀刃孔中至少有一个内刀刀刃。
  9. 根据权利要求1所述的一种旋转式网膜电动剃须刀，其特征在于，所述的内刀两端面分别卡合有右固定架和左固定架，所述的右固定架上设置有与动力源可分离连接的驱动装置，所述的右固定架和左固定架分别设置有圆柱状的右轴和左轴。
  10. 根据权利要求1所述的一种旋转式网膜电动剃须刀，其特征在于，所述的内刀刀刃为由板材经冲压模具冲压后去除材料构成。
PCT/CN2020/000303 2019-12-24 2020-12-16 一种旋转式网膜电动剃须刀 WO2021128438A1 (zh)

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JPH0112699Y2 (zh) * 1980-09-29 1989-04-13
CN2892407Y (zh) * 2006-01-10 2007-04-25 超人集团有限公司 一种滚动式电动剃须刀
CN102039604A (zh) * 2009-10-21 2011-05-04 九州日立麦克赛尔株式会社 旋转刀头及具有旋转刀头的小型电器
JP2012024415A (ja) * 2010-07-26 2012-02-09 Kyushu Hitachi Maxell Ltd 回転刃、および回転刃を備えた小型電気機器
JP2012024461A (ja) * 2010-07-27 2012-02-09 Kyushu Hitachi Maxell Ltd 刃物の製造方法、この製造方法で得られる刃物と、小型電気機器
JP2012035007A (ja) * 2010-08-11 2012-02-23 Kyushu Hitachi Maxell Ltd 刃物の製造方法、この製造方法で得られる刃物と、小型電気機器

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0112699Y2 (zh) * 1980-09-29 1989-04-13
CN2892407Y (zh) * 2006-01-10 2007-04-25 超人集团有限公司 一种滚动式电动剃须刀
CN102039604A (zh) * 2009-10-21 2011-05-04 九州日立麦克赛尔株式会社 旋转刀头及具有旋转刀头的小型电器
JP2012024415A (ja) * 2010-07-26 2012-02-09 Kyushu Hitachi Maxell Ltd 回転刃、および回転刃を備えた小型電気機器
JP2012024461A (ja) * 2010-07-27 2012-02-09 Kyushu Hitachi Maxell Ltd 刃物の製造方法、この製造方法で得られる刃物と、小型電気機器
JP2012035007A (ja) * 2010-08-11 2012-02-23 Kyushu Hitachi Maxell Ltd 刃物の製造方法、この製造方法で得られる刃物と、小型電気機器

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