JP5016823B2 - Processing method and processing device for outer cutter having curved shape of electric razor - Google Patents

Processing method and processing device for outer cutter having curved shape of electric razor Download PDF

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JP5016823B2
JP5016823B2 JP2006017473A JP2006017473A JP5016823B2 JP 5016823 B2 JP5016823 B2 JP 5016823B2 JP 2006017473 A JP2006017473 A JP 2006017473A JP 2006017473 A JP2006017473 A JP 2006017473A JP 5016823 B2 JP5016823 B2 JP 5016823B2
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mold
outer blade
peripheral surface
outer peripheral
curved
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JP2007195715A (en
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隼人 井岡
伸宏 吉岡
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Panasonic Corp
Panasonic Holdings Corp
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Panasonic Corp
Matsushita Electric Industrial Co Ltd
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Description

本発明は、髭を外刃と内刃とで挟み込むことにより切断する電気かみそりの曲面形状を有する外刃の加工方法及び加工装置に関する。   The present invention relates to a processing method and a processing apparatus for an outer blade having a curved shape of an electric razor that is cut by sandwiching a ridge between an outer blade and an inner blade.

近年、髭を外刃と内刃とで挟み込むことにより切断するようにした電気かみそりが汎用されている。この電気かみそりは、例えば図２４に示すように、扁平状のハウジング２００の先端に刃部２０１が配設されて構成されている。この刃部２０１は、ハウジング２００内部に配設されている図略のモータにより左右方向に揺動される内刃２０２と、この内刃２０２を覆うように配設された曲面形状を有する外刃２０３とで構成されている。   In recent years, an electric razor is widely used in which a scissor is cut by being sandwiched between an outer blade and an inner blade. For example, as shown in FIG. 24, the electric razor is configured by disposing a blade portion 201 at the tip of a flat housing 200. The blade portion 201 includes an inner blade 202 that is swung left and right by a motor (not shown) disposed in the housing 200, and an outer blade that has a curved shape disposed so as to cover the inner blade 202. 203.

この外刃２０３を加工するには、板状の外刃素材をダイとパンチとで押圧することにより凹凸を形成し、この凹凸を形成した外刃素材を焼き入れ処理した後に内刃と接する側を研削して刃を得るという従来公知の方法が採用される（例えば、特許文献１）。すなわち、具体的には、外刃２０３は、図２５に示すように、鍛造圧印工程２０４、焼入工程２０５、研削工程２０６、焼戻工程２０７、冷間曲げ工程２０８、焼入矯正工程２０９及び焼戻工程２１０を経て加工される。   In order to process the outer cutter 203, a plate-like outer cutter material is pressed with a die and a punch to form irregularities, and the outer cutter material on which the irregularities are formed is subjected to a quenching process and then comes into contact with the inner cutter. A conventionally known method is used in which a blade is obtained by grinding (see Patent Document 1). Specifically, as shown in FIG. 25, the outer blade 203 includes a forging coining step 204, a quenching step 205, a grinding step 206, a tempering step 207, a cold bending step 208, a quenching correction step 209, and It is processed through the tempering step 210.

この鍛造圧印工程２０４では、図２６（ａ）〜（ｃ）に示すように、ダイ（第１の金型）２１２とパンチ（第２の金型）２１３との間に、金属からなる板状の外刃素材２１４が配置され（図２６（ａ））、ダイ２１２とパンチ２１３とで外刃素材２１４が押圧されて外刃素材２１４に複数の凹凸２１５がメッシュ状に形成され（図２６（ｂ））、その後に押圧が解除されて凹凸２１５の形成された外刃素材２１４が外部に取り出される（図２６（ｃ））。   In this forging coining step 204, as shown in FIGS. 26 (a) to 26 (c), a plate made of metal between a die (first mold) 212 and a punch (second mold) 213 is used. The outer blade material 214 is arranged (FIG. 26A), and the outer blade material 214 is pressed by the die 212 and the punch 213, whereby a plurality of irregularities 215 are formed on the outer blade material 214 in a mesh shape (FIG. b)) After that, the pressing is released, and the outer blade material 214 formed with the unevenness 215 is taken out (FIG. 26C).

焼入工程２０５では、凹凸２１５の形成された外刃素材２１４に対して焼き入れ処理が行われる。これにより、硬度が高くなることで次工程の研削処理時に不要なバリが生じにくくなって良好な刃先を形成することができる。   In the quenching process 205, a quenching process is performed on the outer blade material 214 on which the unevenness 215 is formed. Thereby, it becomes hard to produce an unnecessary burr | flash at the time of the grinding process of the next process because hardness becomes high, and a favorable blade edge can be formed.

研削工程２０６では、図２７（ａ）〜（ｂ）に示すように、凹凸２１５の形成された外刃素材２１４が回転駆動される研削砥石２１７上に送り込まれ（図２７（ａ））、研削砥石２１７により凹凸２１５の底面側が研削されることで外刃素材２１４に複数の貫通孔２１８がメッシュ状に形成される（図２７（ｂ））。   In the grinding step 206, as shown in FIGS. 27 (a) to 27 (b), the outer cutter material 214 formed with the irregularities 215 is fed onto a grinding wheel 217 that is rotationally driven (FIG. 27 (a)), and grinding is performed. A plurality of through holes 218 are formed in a mesh shape in the outer blade material 214 by grinding the bottom surface side of the irregularities 215 by the grindstone 217 (FIG. 27B).

焼戻工程２０７では、貫通孔２１８の形成された外刃素材２１４に対して焼き戻し処理が行われる。これにより、外刃素材２１４が柔らかくなることで次工程における曲げ処理が容易となる。   In the tempering step 207, a tempering process is performed on the outer blade material 214 in which the through hole 218 is formed. As a result, the outer cutter material 214 becomes soft, which facilitates the bending process in the next step.

冷間曲げ工程２０８では、図２８（ａ）〜（ｃ）に示すように、台座２２０上の貫通孔２２１の形成された位置に所定間隔をおいて左右方向に配設され、互いに対向する方向に付勢するバネ部材２２２、２２３が配設された一対の下金型２２５、２２６上に貫通孔２１８の形成された外刃素材２１４が配置され（図２８（ａ））、この外刃素材２１４が曲面形状を有する上金型２２７により押圧されて一対の下金型２２５、２２６間に挿入されることで曲面形状に成型され（図２８（ｂ））、上金型２２７を台座２２０の貫通孔２２１に貫通させることで曲面形状に成型された外刃素材２１４が台座２２０の下方に排出される（図２８（ｃ））。この台座２２０の下方に排出された外刃素材２１４は、弾性変形することになる。   In the cold bending step 208, as shown in FIGS. 28A to 28C, the left and right directions are arranged at predetermined positions at positions where the through holes 221 are formed on the pedestal 220 and face each other. An outer blade material 214 in which a through hole 218 is formed is disposed on a pair of lower dies 225 and 226 in which spring members 222 and 223 that are urged to be disposed are arranged (FIG. 28A). 214 is pressed by the upper mold 227 having a curved shape and inserted between the pair of lower molds 225 and 226 to be molded into a curved shape (FIG. 28B), and the upper mold 227 is attached to the pedestal 220. The outer blade material 214 molded into a curved surface shape by passing through the through-hole 221 is discharged below the pedestal 220 (FIG. 28C). The outer blade material 214 discharged below the pedestal 220 is elastically deformed.

焼入矯正工程２０９では、図２９に示すように、弾性変形した外刃素材２１４がセラミック製などの耐熱性下型２２９内に設置され、セラミック製などの耐熱性上型２３０により押圧された状態で焼き入れされることで所定の曲面形状に矯正される。そして、焼戻工程２１０では、所定の曲面形状に矯正された外刃素材２１４が焼き戻され、これにより脆さの取り除かれた外刃２０３（図２４）を得ることができる。
特公昭４５−３７１２号公報 In the quenching correction step 209, as shown in FIG. 29, the elastically deformed outer blade material 214 is installed in a heat resistant lower mold 229 made of ceramic and pressed by a heat resistant upper mold 230 made of ceramic or the like. It is corrected to a predetermined curved surface shape by quenching. In the tempering step 210, the outer blade material 214 corrected to a predetermined curved surface shape is tempered, whereby the outer blade 203 (FIG. 24) from which brittleness is removed can be obtained.
Japanese Examined Patent Publication No. 45-3712

ところが、上記の加工方法によれば、それぞれ複数回の焼入処理と焼戻処理とが必要となるため、加工工程が煩雑となって低廉化を促進することが困難となり、しかも、外刃２０３の内周面形状（内のり形状）を曲げ処理によって得るため、内周面形状（内のり形状）の寸法精度を高めるのに制約が生じることになり、切れ味にばらつきが生じ易くなるという問題があった。   However, according to the above-described processing method, a plurality of quenching treatments and tempering treatments are required, respectively, so that the processing steps become complicated and it is difficult to promote cost reduction. Since the inner peripheral surface shape (inner shape) is obtained by bending, there is a limitation in increasing the dimensional accuracy of the inner peripheral surface shape (inner shape), and there is a problem that the sharpness tends to vary. .

本発明は、このような事情に鑑みてなされたもので、加工工程を簡素化することができ、しかも、内周面形状の寸法精度を容易に高めることのできる電気かみそりの曲面形状を有する外刃の加工方法及び加工装置を提供することを目的とする。   The present invention has been made in view of such circumstances, and it is possible to simplify the machining process and to have an outer surface having a curved shape of an electric razor that can easily increase the dimensional accuracy of the inner peripheral surface shape. It aims at providing the processing method and processing apparatus of a blade.

上記目的を達成するため、請求項１の発明は、髭を外刃と内刃とで挟み込むことにより切断する電気かみそりの曲面形状を有する外刃の加工方法であって、曲げ加工することで金属からなる板状の外刃素材に複数の凹凸を形成しつつ当該外刃素材を曲面形状に成型する第１の工程と、前記曲面形状に成型された外刃素材を焼き入れすることで所定の曲面形状に矯正すると共に硬度を高める第２の工程と、前記焼き入れされた曲面形状の外刃素材の内周面側の凹凸を研削することにより複数の貫通孔が設けられた刃を形成する第３の工程と、前記刃の形成された外刃素材を焼き戻すことで硬度を低くして弾力性を高める第４の工程とを備えたことを特徴としている。   In order to achieve the above object, the invention of claim 1 is a processing method of an outer blade having a curved shape of an electric razor that is cut by sandwiching a scissors between an outer blade and an inner blade, and is made by bending the metal. A first step of forming the outer cutter blade material into a curved shape while forming a plurality of irregularities on the plate-like outer cutter material, and quenching the outer cutter material molded into the curved shape. A blade having a plurality of through holes is formed by grinding the unevenness on the inner peripheral surface side of the hardened curved outer shape with the second step of correcting the curved shape and increasing the hardness. It is characterized by comprising a third step and a fourth step in which the outer blade material on which the blade is formed is tempered to lower the hardness and increase the elasticity.

そして、請求項１の発明は、前記第１の工程では、板状部材の表面に複数の歯が形成されてなる第１の金型と、曲面形状部材の外周面に前記第１の金型の歯に噛み合う複数の歯が形成されてなる第２の金型とを備え、前記板状の外刃素材を前記第１の金型面に配置し、この外刃素材に対して前記第２の金型により押圧力を加えつつ当該第２の金型をその外周面に前記外刃素材を巻き付けながら前記第１の金型に沿って転動させることを特徴としている。 In the first aspect of the present invention, in the first step, the first mold in which a plurality of teeth are formed on the surface of the plate-shaped member, and the first mold on the outer peripheral surface of the curved surface-shaped member. And a second mold formed with a plurality of teeth meshing with the teeth of the first plate, the plate-shaped outer blade material is disposed on the first mold surface, and the second blade is disposed on the outer blade material. The second die is rolled along the first die while the outer blade material is wound around the outer peripheral surface of the second die while applying a pressing force by the die.

請求項２の発明は、請求項１に係る方法において、前記第１の工程では、前記第２の金型をその外周面にフィルムシートを介して前記外刃素材を巻き付けながら前記第１の金型に沿って転動させることを特徴としている。 According to a second aspect of the present invention, in the method according to the first aspect, in the first step, the first metal mold is wound around the outer peripheral surface of the second metal mold via a film sheet. It is characterized by rolling along the mold.

請求項３の発明は、髭を外刃と内刃とで挟み込むことにより切断する電気かみそりの曲面形状を有する外刃の加工装置であって、板状部材の表面に複数の歯が形成されてなる第１の金型と、外周面が前記外刃の内周面形状に合致した形状を有する曲面形状部材の当該外周面に前記第１の金型の歯に噛み合う複数の歯が形成されてなる第２の金型と、前記第１の金型面に配置した板状の外刃素材に対して前記第２の金型により押圧力を加えつつ当該第２の金型をその外周面に前記外刃素材を巻き付けながら前記第１の金型に沿って転動させる転動機構部とを備えたことを特徴としている。 The invention of claim 3 is a processing device for an outer blade having a curved shape of an electric razor that is cut by sandwiching a scissor between an outer blade and an inner blade, and a plurality of teeth are formed on the surface of the plate-like member. A plurality of teeth that mesh with the teeth of the first mold are formed on the outer peripheral surface of the first mold and the curved surface member whose outer peripheral surface has a shape that matches the inner peripheral surface shape of the outer cutter. The second mold is applied to the outer peripheral surface of the second mold and the plate-shaped outer blade material disposed on the first mold surface while applying a pressing force by the second mold. And a rolling mechanism section that rolls along the first mold while winding the outer blade material.

請求項４の発明は、請求項３に係るものにおいて、前記第２の金型が、その外周面に前記外刃素材の端部を係止する係止部を設けたものであり、前記転動機構部が、前記外刃素材の端部を前記係止部に係止させた状態で前記第２の金型を前記第１の金型に沿って転動させるものであることを特徴としている。 According to a fourth aspect of the present invention, in the first aspect, the second mold is provided with a locking portion for locking an end portion of the outer blade material on an outer peripheral surface thereof. The moving mechanism section is configured to roll the second mold along the first mold in a state where the end portion of the outer blade material is locked to the locking section. Yes.

請求項５の発明は、請求項３又は４に係るものにおいて、前記転動機構部が、前記第２の金型の対向する両側面にそれぞれ設けられ、外周縁における先端位置からの距離が外周縁における他の位置からの距離よりも長くなる箇所に突出する支持軸体と、前記第２の金型の対向する両側面側にそれぞれ設けられ、前記支持軸体を挿入した状態で前記第１の金型の一端側と他端側との間を摺動可能で前記第１の金型に対してアーチ状となるスライド孔の形成されたガイド部材と、前記支持軸体を前記ガイド部材のアーチ状のスライド孔に沿って移動させる移動機構とを備えたことを特徴としている。 The invention according to claim 5 is the invention according to claim 3 or 4 , wherein the rolling mechanism portions are respectively provided on opposite side surfaces of the second mold, and the distance from the tip position on the outer peripheral edge is outside. A support shaft projecting to a location that is longer than the distance from the other position on the periphery, and provided on both opposite side surfaces of the second mold, and the first support shaft is inserted into the first shaft. A guide member having a slide hole that is slidable between one end side and the other end side of the mold and has an arch shape with respect to the first mold, and the support shaft body of the guide member. And a moving mechanism for moving along the arched slide hole.

請求項６の発明は、請求項３乃至５の何れかに係るものにおいて、前記第２の金型が、その内部に当該第２の金型の外周面から流体を吐出させる流体通路を設けたもので、前記第２の金型の外周面に巻き付けられた外刃素材を当該外周面から離脱させるときに前記流体通路に流体を供給するようにしたことを特徴としている。 According to a sixth aspect of the present invention, in the method according to any one of the third to fifth aspects, the second mold is provided with a fluid passage for discharging fluid from an outer peripheral surface of the second mold. Therefore, when the outer blade material wound around the outer peripheral surface of the second mold is separated from the outer peripheral surface, fluid is supplied to the fluid passage.

請求項７の発明は、請求項３乃至５の何れかに係るものにおいて、前記第２の金型が、中央に配した中央部材と、この中央部材の両側にそれぞれ配した外側部材と、これらの外側部材を互いに中央部材側に付勢する付勢部材とを備えたもので、前記第２の金型の外周面に巻き付けられた外刃素材を当該外周面から離脱させるときに前記中央部材を外方に引き抜くことにより前記外側部材を前記付勢部材により互いに引き寄せるようにしたことを特徴としている。 The invention according to claim 7 is the invention according to any one of claims 3 to 5 , wherein the second mold includes a central member disposed in the center, outer members disposed on both sides of the central member, and A biasing member that biases the outer members of the second mold toward the central member side, and the central member when the outer blade material wound around the outer peripheral surface of the second mold is detached from the outer peripheral surface. The outer member is pulled toward each other by the urging member by pulling out the outer side of the urging member.

請求項８の発明は、請求項３又は４に係るものにおいて、前記転動機構部が、前記第１の金型面に直交する第１の方向及び前記第１の金型面に平行な第２の方向に駆動可能なカムと、前記第２の金型の内部に形成されて前記カムを摺動させるもので、前記第２の金型の外周面に対応する曲面に沿って形成されたカム受け部と、前記カムを前記第１の方向に押圧力を加えた状態で前記カム受け部に摺動させて前記第２の方向に移動させる移動機構とを備えたことを特徴としている。 The invention according to an eighth aspect is the invention according to the third or fourth aspect , wherein the rolling mechanism portion includes a first direction orthogonal to the first mold surface and a first direction parallel to the first mold surface. A cam that can be driven in the direction of 2 and formed inside the second mold to slide the cam, and formed along a curved surface corresponding to the outer peripheral surface of the second mold. It is characterized by comprising a cam receiving portion and a moving mechanism for sliding the cam in the first direction with a pressing force applied in the first direction and moving the cam in the second direction.

請求項９の発明は、請求項３乃至８の何れかに係るものにおいて、前記転動機構部が、前記外刃素材に対する前記第２の金型の外周面における接触面積が大きい曲面位置では小さい曲面位置よりも押圧力を大きくし、前記外刃素材に対する前記第２の金型の外周面における接触面積が小さい曲面位置では大きい曲面位置よりも押圧力を小さくするようにしたものであることを特徴としている。 The invention according to claim 9 is the invention according to any one of claims 3 to 8 , wherein the rolling mechanism portion is small at a curved surface position where a contact area on the outer peripheral surface of the second mold with respect to the outer blade material is large. The pressing force is made larger than the curved surface position, and the pressing force is made smaller at the curved surface position where the contact area on the outer peripheral surface of the second die with respect to the outer blade material is smaller than at the large curved surface position. It is a feature.

請求項１０の発明は、請求項３又は４に係るものにおいて、前記第２の金型が、外周面が前記外刃の内周面形状に合致した形状を有する２つの曲面形状部材を互いに逆方向を向くように対向させて一体化した形状を有する曲面形状部材により構成されたもので、その曲面形状部材の外周面に前記第１の金型の歯に噛み合う複数の歯が形成されたものであることを特徴としている。 The invention according to claim 10 is the one according to claim 3 or 4 , wherein the second mold is formed by reversing two curved surface-shaped members whose outer peripheral surface has a shape that matches the inner peripheral surface shape of the outer cutter. Consists of a curved member having a shape that is opposed and integrated so as to face the direction, and a plurality of teeth that mesh with the teeth of the first mold are formed on the outer peripheral surface of the curved member It is characterized by being.

請求項１の発明によれば、焼入処理及び焼戻処理の工程数を少なくすることができ、しかも、板状の外刃素材に対する凹凸の形成と曲面形状への成型とを同一の工程で行うことができるため、全体の工程数を効果的に削減することができる結果、製造コストの低廉化を容易に促進することができる。また、板状の外刃素材を所定の曲面形状に成型した後に内周面側を研削して刃を形成することで外刃を得るため、外刃の内周面形状の寸法精度を高めることができ、内刃とのクリアランスを正確に設定することができるようになる結果、かみそりの切れ味を効果的に向上させることができる。   According to the invention of claim 1, the number of steps of the quenching process and the tempering process can be reduced, and the formation of irregularities on the plate-shaped outer blade material and the molding into a curved surface shape are performed in the same process. Since it can be performed, the total number of steps can be effectively reduced. As a result, reduction in manufacturing cost can be easily promoted. In addition, after molding a plate-shaped outer blade material into a predetermined curved surface shape, the outer peripheral surface is obtained by grinding the inner peripheral surface side to form the blade, thus increasing the dimensional accuracy of the inner peripheral surface shape of the outer blade As a result, the clearance with the inner blade can be accurately set, so that the sharpness of the razor can be effectively improved.

そして、請求項１の発明によれば、第１の金型面に配置した板状の外刃素材に対して第２の金型により押圧力を加えつつ、第２の金型をその外周面に外刃素材を巻き付けながら転動させるため、板状の外刃素材に対する凹凸の形成と曲面形状への成型とを同一の工程において確実に行うことができる。 Then, according to the invention of claim 1, while applying a pressing force by the second die relative to the outer cutter element and a plate-like arranged on the first mold surface, the outer peripheral surface thereof a second mold Since the outer cutter material is rolled while being wound around, the formation of irregularities on the plate-like outer cutter material and molding into a curved surface shape can be reliably performed in the same process.

請求項２の発明によれば、第２の金型の外周面にフィルムシートを介して外刃素材が巻き付けられるため、フィルムシートの端部を引っ張ることで曲面形状に成型された外刃素材を第２の金型から容易に離脱させることができる。 According to the invention of claim 2 , since the outer blade material is wound around the outer peripheral surface of the second mold via the film sheet, the outer blade material molded into a curved surface shape by pulling the end of the film sheet. It can be easily detached from the second mold.

請求項３の発明によれば、曲面形状部材の外周面に複数の歯が形成されてなる第２の金型が板状部材の表面に複数の歯が形成されてなる第１の金型面に配置した板状の外刃素材に対して押圧力を加えつつ、その外周面に外刃素材を巻き付けながら転動されるため、板状の外刃素材に対する凹凸の形成と曲面形状への成型とを同時に行うことができ、工程数を効果的に削減することができる結果、製造コストの低廉化を容易に促進することができる。 According to invention of Claim 3 , the 2nd metal mold | die with which several teeth are formed in the outer peripheral surface of a curved-surface-shaped member is the 1st metal mold | die surface by which several teeth are formed in the surface of a plate-shaped member. The plate-shaped outer blade material is rolled while the outer blade material is wound around the outer peripheral surface while applying a pressing force to the plate-shaped outer blade material. As a result, the number of steps can be effectively reduced, and as a result, reduction in manufacturing cost can be easily promoted.

請求項４の発明によれば、板状の外刃素材の端部を外周面の係止部に係止させた状態で第２の金型を転動させるため、板状の外刃素材に対する凹凸の形成と曲面形状への成型とを確実に行うことができる。 According to invention of Claim 4 , in order to roll a 2nd metal mold | die in the state which locked the edge part of the plate-shaped outer blade raw material to the latching | locking part of an outer peripheral surface, with respect to a plate-shaped outer blade raw material It is possible to reliably perform formation of irregularities and molding into a curved surface shape.

請求項５の発明によれば、第２の金型の両側面に設けられた支持軸体をガイド部材のスライド孔に沿って移動させるため、第２の金型を第１の金型に沿って確実に転動させることができる結果、板状の外刃素材に対する凹凸の形成と曲面形状への成型とを確実に行うことができる。 According to invention of Claim 5 , in order to move the support shaft body provided in the both sides | surfaces of a 2nd mold along the slide hole of a guide member, a 2nd mold is followed along a 1st mold. As a result of being able to reliably roll, it is possible to reliably perform formation of irregularities on the plate-shaped outer blade material and molding into a curved surface shape.

請求項６の発明によれば、第２の金型の内部に設けた流体通路に流体を供給することにより、第２の金型の外周面に巻き付けられた外刃素材を第２の金型の外周面から容易に離脱させることができる。 According to the invention of claim 6 , by supplying a fluid to a fluid passage provided in the second mold, the outer blade material wound around the outer peripheral surface of the second mold is used as the second mold. It can be easily detached from the outer peripheral surface of.

請求項７の発明によれば、中央部材を外方に引き抜いて外側部材を付勢部材により互いに引き寄せるようにすることにより、第２の金型の外周面に巻き付けられた外刃素材を第２の金型の外周面から容易に離脱させることができる。 According to the seventh aspect of the invention, the outer member is wound around the outer peripheral surface of the second mold by pulling the center member outward and pulling the outer members together by the biasing member. It can be easily detached from the outer peripheral surface of the mold.

請求項８の発明によれば、カムを第２の金型の内部に形成されたカム受け部に摺動させて移動させるため、第２の金型を第１の金型に沿って確実に転動させることができる結果、板状の外刃素材に対する凹凸の形成と曲面形状への成型とを確実に行うことができる。 According to the eighth aspect of the present invention, since the cam is slid and moved to the cam receiving portion formed inside the second mold, the second mold is surely moved along the first mold. As a result of being able to roll, it is possible to reliably perform formation of irregularities on the plate-shaped outer blade material and molding into a curved surface shape.

請求項９の発明によれば、第２の金型の外刃素材に対する接触面積に対応して外刃素材に対する押圧力が調整されるため、外刃素材を第２の金型の外周面に確実に巻き付けることができ、外刃素材をより正確な寸法で成型することができる。 According to the ninth aspect of the present invention, since the pressing force against the outer blade material is adjusted corresponding to the contact area of the second mold with the outer blade material, the outer blade material is placed on the outer peripheral surface of the second mold. As a result, the outer cutter blade can be reliably wound and the outer blade material can be molded with a more accurate dimension.

請求項１０の発明によれば、第２の金型を第１の金型に対して一回転させることで２つの外刃の転写・曲げ工程を同時に行うことができるため、転写・曲げ工程における作業効率を効果的に向上させることができる。 According to the invention of claim 10 , since the second mold can be rotated once with respect to the first mold, the transfer / bending process of the two outer blades can be performed simultaneously. Work efficiency can be improved effectively.

図１は、本発明の一実施形態に係る電気かみそりの曲面形状を有する外刃の加工方法を説明するための工程を示す図である。すなわち、本発明に係る電気かみそりの曲面形状を有する外刃の加工方法は、髭を外刃と内刃とで挟み込むことにより切断する従来例に示した電気かみそりの外刃であって、図２に示すように、複数の貫通孔１０がメッシュ状に形成されており、長手方向（Ｘ１―Ｘ２）と直交する方向（Ｙ１―Ｙ２）の側面がＵ字に近似した曲面形状を有する外刃１１を得るためのものであり、第１の工程である転写・曲げ工程１２と、第２の工程である焼入工程１３と、第３の工程である研削工程１４と、第４の工程である焼戻工程１５とを備えている。   FIG. 1 is a diagram illustrating a process for explaining a method for processing an outer blade having a curved shape of an electric razor according to an embodiment of the present invention. That is, the processing method of the outer cutter having the curved shape of the electric razor according to the present invention is the outer cutter of the electric razor shown in the conventional example in which cutting is performed by sandwiching the scissors between the outer cutter and the inner cutter. As shown in FIG. 2, the outer blade 11 has a plurality of through holes 10 formed in a mesh shape, and has a curved surface shape in which the side surface in the direction (Y1-Y2) orthogonal to the longitudinal direction (X1-X2) approximates a U-shape. Is a transfer / bending step 12 as a first step, a quenching step 13 as a second step, a grinding step 14 as a third step, and a fourth step. And a tempering step 15.

転写・曲げ工程１２は、金属からなる板状の外刃素材に複数の凹凸をメッシュ状に形成しつつ当該外刃素材を曲面形状に成型する工程である。図３は、この転写・曲げ工程１２を実施するための加工装置１６の構成例を模式的に示すもので、板状部材１７の表面に複数の歯１８がメッシュ状に形成されてなる第１の金型２０と、曲面形状部材２１の曲面を有する外周面に第１の金型２０の歯１８に噛み合う複数の歯２２がメッシュ状に形成されてなる第２の金型２３とを備えている。   The transfer / bending step 12 is a step of forming the outer cutter material into a curved shape while forming a plurality of irregularities in a mesh shape on a plate-like outer cutter material made of metal. FIG. 3 schematically shows an example of the configuration of the processing device 16 for carrying out the transfer / bending step 12. The first is formed by forming a plurality of teeth 18 in a mesh shape on the surface of the plate-like member 17. And a second mold 23 in which a plurality of teeth 22 meshing with the teeth 18 of the first mold 20 are formed in a mesh shape on the outer peripheral surface of the curved surface-shaped member 21 having a curved surface. Yes.

この第２の金型２３を構成する曲面形状部材２１は、歯２２の形成される外周面が外刃１１の内周面形状（内のり形状）に合致した曲面形状を有するものである。すなわち、この曲面形状部材２１は、図４に示すように、長手方向（Ｘ１―Ｘ２）と直交する方向（Ｙ１―Ｙ２）の断面がＵ字（半楕円形状又は半長円形状）に近似した輪郭を有するものであり、先端ａの両側に線対称となる互いに外側に膨らんだ曲面ｂ、ｃを有する長手方向（Ｘ１―Ｘ２）に伸びる外周面ｄと、長手方向（Ｘ１―Ｘ２）に互いに対向する２つの側面ｅ、ｆと、２つの側面ｅ、ｆを結ぶ平面ｇとを備えたブロック体からなるものである。   The curved surface-shaped member 21 constituting the second mold 23 has a curved surface shape in which the outer peripheral surface on which the teeth 22 are formed matches the inner peripheral surface shape (inner shape) of the outer cutter 11. That is, as shown in FIG. 4, the curved surface member 21 has a cross section in a direction (Y1-Y2) orthogonal to the longitudinal direction (X1-X2) approximated to a U-shape (semi-elliptical shape or semi-ellipse shape). An outer peripheral surface d extending in the longitudinal direction (X1-X2) having curved surfaces b and c that are symmetrical with each other on both sides of the tip end a and extending in the longitudinal direction (X1-X2), and in the longitudinal direction (X1-X2) It consists of a block body provided with two opposing side surfaces e and f and a plane g connecting the two side surfaces e and f.

この転写・曲げ工程１２では、第１の金型２０面に沿って金属からなる板状の外刃素材２４を配置し、この外刃素材２４に対して第２の金型２３により押圧力（プレス力）を加えつつ、第２の金型２３をその外周面に外刃素材２４を巻き付けながら第１の金型２０に沿って転動させる。   In this transfer / bending step 12, a plate-shaped outer blade material 24 made of metal is disposed along the surface of the first mold 20, and a pressing force ( While applying a pressing force, the second mold 23 is rolled along the first mold 20 while the outer blade material 24 is wound around the outer peripheral surface thereof.

すなわち、第２の金型２３を先端ａが外刃素材２４の中央部側に向き、一方の曲面ｂが外刃素材２４に向くような状態で横臥させ、その一方の曲面ｂにおける先端ａから所定寸法だけ離間した箇所に外刃素材２４の端部を係止させて固定しておき、この状態で第２の金型２３を外刃素材２４に対して押圧力を加えながら第１の金型２０に沿って転動させることで第２の金型２３を立ち上がらせ、この立ち上がった第２の金型２３を横臥させて他方の曲面ｃにおける先端ａから所定寸法だけ離間した箇所が外刃素材２４に当接するまで外刃素材２４に対して第２の金型２３により押圧力を加えながら第１の金型２０に沿って転動させる。   That is, the second mold 23 is laid down with the tip a facing toward the center of the outer blade material 24 and the one curved surface b facing the outer blade material 24, and from the tip a on the one curved surface b. The end of the outer blade material 24 is locked and fixed at a location separated by a predetermined dimension, and in this state, the first mold is applied while pressing the second mold 23 against the outer blade material 24. The second die 23 is raised by rolling along the die 20, and the second die 23 that has risen is laid down and a portion separated by a predetermined dimension from the tip a on the other curved surface c is an outer blade. The outer blade material 24 is rolled along the first mold 20 while applying a pressing force to the outer blade material 24 by the second mold 23 until it comes into contact with the material 24.

これにより、図５に示すように、第１の金型２０と第２の金型２３とにより外刃素材２４に凹凸２６がメッシュ状に形成（転写）され、この凹凸２６の形成された外刃素材２４が第２の金型２３の外周面形状に合致した内周面形状を有する曲面形状に成型されることになる。   As a result, as shown in FIG. 5, the first mold 20 and the second mold 23 form (transfer) irregularities 26 in the outer blade material 24 in a mesh shape. The blade material 24 is molded into a curved surface shape having an inner peripheral surface shape that matches the outer peripheral surface shape of the second mold 23.

焼入工程１３は、曲面形状に成型された図５に示す外刃素材２４を焼き入れ処理する工程であり、セラミックなどで構成された型内に外刃素材２４を保持させるなどして炉内に収納し、その金属材料に適合した温度で所定時間だけ加熱したのち、急速に冷却することで焼き入れ処理が行われる。これにより、所定の曲面形状に矯正されると共に、金属材料の硬度が高められることで、研削工程１４で外刃素材２４を研削するときの不要なバリの発生が抑制され、良好な刃先が形成されることになる。   The quenching step 13 is a step of quenching the outer blade material 24 shown in FIG. 5 formed into a curved surface shape, and the inner blade material 24 is held in a mold made of ceramic or the like, for example. In this case, after quenching at a temperature suitable for the metal material for a predetermined time and then rapidly cooling, a quenching process is performed. As a result, it is corrected to a predetermined curved surface shape and the hardness of the metal material is increased, so that generation of unnecessary burrs when the outer blade material 24 is ground in the grinding step 14 is suppressed, and a good cutting edge is formed. Will be.

研削工程１４は、焼き入れ処理された曲面形状の外刃素材２４の内周面側の複数の凹凸２６を研削することにより複数の貫通孔がメッシュ状に設けられてなる刃を形成する工程であり、図６に示すように、焼き入れ処理された曲面形状を有する外刃素材２４をセラミックなどで構成された型２７の曲面形状を有する保持部２８内に収納して保持させ、この状態で外刃素材２４の内周面側の凹凸２６を砥石などの切削部材で切削することで、図７に示すように、複数の貫通孔２９がメッシュ状に形成されてなる刃３０が形成されることになる。   The grinding step 14 is a step of forming a blade in which a plurality of through holes are provided in a mesh shape by grinding a plurality of irregularities 26 on the inner peripheral surface side of a curved outer blade material 24 that has been quenched. 6. As shown in FIG. 6, the outer blade material 24 having a curved surface shape that has been quenched is accommodated and held in a holding portion 28 having a curved shape of a mold 27 made of ceramic or the like, and in this state By cutting the irregularities 26 on the inner peripheral surface side of the outer blade material 24 with a cutting member such as a grindstone, a blade 30 in which a plurality of through holes 29 are formed in a mesh shape is formed as shown in FIG. It will be.

この外刃素材２４の凹凸２６は、例えば、次のようにして切削される。すなわち、図８に示すように、外周面が外刃素材２４の内周面（内のり面）に合致した形状を有する円盤状の切削部材３２を回転させ、この回転している切削部材３２の外周部分に型２７に保持された外刃素材２４の内周部分が嵌まり込むようにして外刃素材２４を上流側から下流側に向けて切削部材３２を通過させることにより、外刃素材２４の内周面側の凹凸２６が切削される。これにより、刃３０の内周面形状を高精度で仕上げることができる。すなわち、刃３０の内周面形状は、切削部材３２の外周部分の形状により決まるため、切削部材３２の外周部分の形状を管理しておくことで容易に刃３０の内周面形状を高精度で仕上げることができることになる。   The unevenness 26 of the outer blade material 24 is cut as follows, for example. That is, as shown in FIG. 8, the disc-shaped cutting member 32 having a shape whose outer peripheral surface matches the inner peripheral surface (inner surface) of the outer cutter blank 24 is rotated, and the outer periphery of the rotating cutting member 32 is rotated. By passing the cutting member 32 from the upstream side toward the downstream side so that the inner peripheral portion of the outer blade material 24 held by the mold 27 fits in the portion, the inner periphery of the outer blade material 24 is passed. The unevenness 26 on the surface side is cut. Thereby, the inner peripheral surface shape of the blade 30 can be finished with high accuracy. That is, the shape of the inner peripheral surface of the blade 30 is determined by the shape of the outer peripheral portion of the cutting member 32. Therefore, the shape of the inner peripheral surface of the blade 30 can be easily adjusted with high accuracy by managing the shape of the outer peripheral portion of the cutting member 32. It can be finished with.

焼戻工程１５は、刃３０の形成された外刃素材２４を焼き戻す工程であり、セラミックなどで構成された型内に外刃素材２４を保持させるなどして炉内に収納し、その金属材料に適合した温度で所定時間だけ加熱することで焼き戻し処理が行われる。これにより、金属材料の硬度が低くなって外刃素材２４の弾力性が高められ、髭剃りに適した外刃１１を得ることができる。   The tempering step 15 is a step of tempering the outer blade material 24 on which the blade 30 is formed. The outer blade material 24 is held in a furnace formed in a mold made of ceramic or the like, and is stored in the furnace. A tempering process is performed by heating for a predetermined time at a temperature suitable for the material. Thereby, the hardness of a metal material becomes low and the elasticity of the outer blade raw material 24 is improved, and the outer blade 11 suitable for shaving can be obtained.

以上のように、本発明の電気かみそりの曲面形状を有する外刃の加工方法によれば、従来の加工方法に比べて焼入処理及び焼戻処理の工程数を少なくすることができ、しかも、外刃素材２４に対する凹凸２６の形成と曲面形状への成型とを同一の工程で行うことができるため、全体の工程数を効果的に削減することができる結果、製造コストの低廉化を容易に促進することができる。また、板状の外刃素材２４を所定の曲面形状に成型した後にその内周面側を研削して刃３０を形成することで外刃１１を得るため、外刃１１の内周面形状の寸法精度を高めることができ、内刃とのクリアランスを正確に設定することができるようになる結果、かみそりの切れ味を効果的に向上させることができる。   As described above, according to the processing method of the outer blade having the curved shape of the electric razor of the present invention, the number of steps of the quenching process and the tempering process can be reduced as compared with the conventional processing method, Since the formation of the projections and depressions 26 on the outer blade material 24 and the molding into a curved surface shape can be performed in the same process, the total number of processes can be effectively reduced, and the manufacturing cost can be easily reduced. Can be promoted. Moreover, in order to obtain the outer cutter 11 by forming the blade 30 by grinding the inner peripheral surface of the plate-shaped outer cutter material 24 into a predetermined curved surface shape, the inner peripheral surface of the outer cutter 11 is shaped. As a result of improving the dimensional accuracy and setting the clearance with the inner blade accurately, the sharpness of the razor can be effectively improved.

図９は、転写・曲げ工程１２において用いられる加工装置１６の具体的構成例を示す図である。すなわち、加工装置１６は、上述した第１の金型２０及び第２の金型２３（いずれも歯１８、２２の図示を省略）と、第１の金型２０面に沿わせて配置した板状の外刃素材２４に対し第２の金型２３により押圧力を加える一方、第２の金型２３をその外周面に外刃素材２４を巻き付けながら第１の金型２０に沿って転動させることで、外刃素材２４に凹凸２６（図５）をメッシュ状に形成しつつ外刃素材２４を曲面形状に成型する転動機構部３１とを備えている。   FIG. 9 is a diagram illustrating a specific configuration example of the processing apparatus 16 used in the transfer / bending step 12. That is, the processing device 16 includes the first mold 20 and the second mold 23 (both of which the illustrations of the teeth 18 and 22 are omitted) and the plate disposed along the surface of the first mold 20. While the outer die material 24 is pressed by the second die 23, the second die 23 rolls along the first die 20 while the outer cutter material 24 is wound around the outer peripheral surface thereof. Thus, a rolling mechanism portion 31 is provided which forms the outer cutter material 24 into a curved shape while forming the irregularities 26 (FIG. 5) in a mesh shape on the outer cutter material 24.

ここで、第１の金型２０は、台座３７上に設置されている。また、転動機構部３１は、第２の金型２３の両側面（紙面を貫く方向の手前側及び奥行側）にそれぞれ設けられ、各側面の外周縁における先端ａの位置（先端位置）からの距離が当該外周縁における他の位置からの距離よりも長くなる箇所において同軸状に突出する支持軸体３３、３３（手前側の一方のみ図示）と、第２の金型２３の両側面側（紙面を貫く方向の手前側及び奥行側）にそれぞれ配設されたもので、支持軸体３３、３３をそれぞれ挿入した状態で当該支持軸体３３、３３を第１の金型２０の一端側（図示の左端側）と他端側（図示の右端側）との間において摺動可能で第１の金型２０に対してアーチ状となる（上方に向けて凸状となる）スライド孔３４を有するアーチ状ガイド部材３５、３５（手前側の一方のみ図示）と、支持軸体３３、３３をスライド孔３４に挿入した状態でアーチ状ガイド部材３５、３５の一端側（図示の左端側）と他端側（図示の右端側）との間をスライド孔３４に沿って移動させる移動機構３６とを備えている。   Here, the first mold 20 is installed on the pedestal 37. Further, the rolling mechanism 31 is provided on both side surfaces (front side and depth side in the direction penetrating the paper surface) of the second mold 23, and from the position (tip position) of the tip a on the outer peripheral edge of each side surface. The support shaft bodies 33 and 33 (only one on the front side is shown) projecting coaxially at a location where the distance of the outer peripheral edge is longer than the distance from other positions on the outer peripheral edge, and both side surfaces of the second mold 23 (The front side and the depth side in the direction penetrating the paper surface), and the support shaft bodies 33, 33 are inserted into the first mold 20 in the state where the support shaft bodies 33, 33 are inserted, respectively. A slide hole 34 that is slidable between (the left end side in the drawing) and the other end side (the right end side in the drawing) and has an arched shape (projects upward) with respect to the first mold 20. Arched guide members 35, 35 (only one of the front side is shown), With the shaft bodies 33, 33 inserted into the slide hole 34, the gap between one end side (the left end side in the figure) and the other end side (the right end side in the figure) of the arched guide members 35, 35 is along the slide hole 34. And a moving mechanism 36 for moving.

移動機構３６は、アーチ状ガイド部材３５、３５の一端側と他端側とにおける台座３７上にそれぞれ立設された支柱３８、３８と、この支柱３８、３８に跨って配設された天板３９と、この天板３９に取り付けられた金型駆動部４０とを備えている。   The moving mechanism 36 includes struts 38 and 38 erected on a pedestal 37 on one end side and the other end side of the arch-shaped guide members 35 and 35, and a top plate disposed across the struts 38 and 38. 39 and a mold drive unit 40 attached to the top plate 39.

金型駆動部４０は、天板３９に取り付けられた一対の軸受け４２、４２により回転可能に軸支され、第２の金型２３の上方に配設されたねじ軸４３と、このねじ軸４３に螺合され、ねじ軸４３の回転により軸方向に移動されるナット部材４４と、このナット部材４４に接続されて第２の金型２３の両側面側にそれぞれ伸びるように配設され、支持軸体３３、３３をそれぞれ挿入した状態で第１の金型２０に直交する方向（図示の上下方向）に摺動可能なストレート状のスライド孔４５の形成されたストレート状ガイド部材４６、４６（手前側の一方のみ図示）と、天板３９に取り付けられ、ねじ軸４３を回転駆動する駆動モータ４７とを備えている。   The mold driving unit 40 is rotatably supported by a pair of bearings 42, 42 attached to the top plate 39, a screw shaft 43 disposed above the second mold 23, and the screw shaft 43. And a nut member 44 that is axially moved by the rotation of the screw shaft 43 and is connected to the nut member 44 so as to extend to both side surfaces of the second mold 23, and is supported. Straight guide members 46, 46 (in which straight slide holes 45 are formed that are slidable in a direction (vertical direction in the figure) perpendicular to the first mold 20 with the shaft bodies 33, 33 inserted respectively) Only one of the front side is shown), and a drive motor 47 that is attached to the top plate 39 and that rotationally drives the screw shaft 43 is provided.

このように構成された加工装置１６によれば、ねじ軸４３の回転によりナット部材４４がねじ軸４３の一端側（図示の左端側）と他端側（図示の右端側）との間を移動することで支持軸体３３、３３がストレート状ガイド部材４６、４６により第１の金型２０面に平行する方向（図示の左右方向）に押圧され、アーチ状ガイド部材３５、３５のスライド孔３４、３４に沿って第１の金型２０の一端側（図示の左端側）と他端側（図示の右端側）との間を移動する結果、第２の金型２３が第１の金型２０の一端側と他端側との間で第１の金型２０に沿って転動することになる。なお、アーチ状ガイド部材３５、３５は、支持軸体３３、３３がアーチ状ガイド部材３５、３５のスライド孔３４、３４に沿って移動するとき、第２の金型２３が第１の金型２０面に配置された外刃素材２４に対して押圧力を加えることのできる位置に配設されている。   According to the processing apparatus 16 configured in this way, the nut member 44 moves between one end side (the left end side in the drawing) and the other end side (the right end side in the drawing) of the screw shaft 43 by the rotation of the screw shaft 43. As a result, the support shafts 33 and 33 are pressed by the straight guide members 46 and 46 in a direction parallel to the first mold 20 surface (left and right direction in the drawing), and the slide holes 34 of the arched guide members 35 and 35 are pressed. , 34, the second mold 23 is moved to the first mold 20 as a result of moving between one end side (the left end side in the figure) and the other end side (the right end side in the figure) of the first mold 20. It rolls along the 1st metal mold | die 20 between the one end side of 20 and the other end side. The arch-shaped guide members 35 and 35 are configured such that when the support shaft bodies 33 and 33 move along the slide holes 34 and 34 of the arch-shaped guide members 35 and 35, the second mold 23 is the first mold. It is arranged at a position where a pressing force can be applied to the outer blade material 24 arranged on the 20th surface.

すなわち、支持軸体３３、３３がアーチ状ガイド部材３５、３５の一端側に移動されるときには、支持軸体３３、３３が第１の金型２０に近づく方向（図示の下方）にガイドされることで第２の金型２３が先端ａを第１の金型２０の中央部側に向けて横臥された状態となり、支持軸体３３、３３がアーチ状ガイド部材３５、３５の中央部に移動されるときには、支持軸体３３、３３が第１の金型２０から離反する方向（図示の上方）にガイドされることで第２の金型２３が立直された状態となる。また、支持軸体３３、３３がアーチ状ガイド部材３５、３５の他端側に移動されるときには、支持軸体３３、３３が第１の金型２０に近づく方向（図示の下方）にガイドされることで第２の金型２３が先端ａを第１の金型２０の中央部側に向けて横臥された状態となる。   That is, when the support shaft bodies 33 and 33 are moved to one end side of the arched guide members 35 and 35, the support shaft bodies 33 and 33 are guided in a direction approaching the first mold 20 (downward in the drawing). As a result, the second mold 23 is in a state of being laid down with the tip a directed toward the center of the first mold 20, and the support shaft bodies 33, 33 are moved to the center of the arched guide members 35, 35. At this time, the support shaft bodies 33 and 33 are guided in a direction away from the first mold 20 (upward in the drawing), so that the second mold 23 is upright. Further, when the support shaft bodies 33 and 33 are moved to the other end side of the arched guide members 35 and 35, the support shaft bodies 33 and 33 are guided in a direction approaching the first mold 20 (downward in the drawing). As a result, the second mold 23 is in a state of being laid down with the tip a facing toward the center of the first mold 20.

これにより、第１の金型２０面に沿って板状の外刃素材２４を配置し、第２の金型２３の一方の曲面ｂにおける先端ａから離間した箇所に外刃素材２４の端部を係止した状態で第２の金型２３をアーチ状ガイド部材３５、３５の一端側から他端側に向けて移動させることにより第２の金型２３は外刃素材２４に対して押圧力を加えながら転動されることになる結果、外刃素材２４は凹凸２６がメッシュ状に形成された状態で第２の金型２３の外周面に巻き付けられて曲面形状に成型されることになる。   Thereby, the plate-shaped outer blade material 24 is disposed along the surface of the first mold 20, and the end portion of the outer blade material 24 is located at a position away from the tip a on the one curved surface b of the second mold 23. The second die 23 is pressed against the outer blade material 24 by moving the second die 23 from one end side to the other end side of the arch-shaped guide members 35, 35 in a state where the second die 23 is locked. As a result, the outer blade material 24 is wound around the outer peripheral surface of the second mold 23 and formed into a curved shape with the irregularities 26 formed in a mesh shape. .

図１０は、外刃素材２４の端部を第２の金型２３の外周面に係止するための係止構造の具体例を示す図であり、（ａ）は、第２の金型２３の外周面に鉤状のピンからなる係止部５０を形成したもの、（ｂ）は、第２の金型２３の外周面にスリットからなる係止部５１を形成したもの、（ｃ）は、第２の金型２３の外周面にクランプ機構（締付け具）からなる係止部５２を設けたもので、いずれか１の係止構造を採用することができる。なお、第２の金型２３の外周面に鉤状のピンからなる係止部５０を形成する場合は、外刃素材２４の端部に係止部５０に嵌合可能な孔を形成しておく必要がある。   FIG. 10 is a diagram showing a specific example of a locking structure for locking the end portion of the outer blade material 24 to the outer peripheral surface of the second mold 23, and FIG. 10A shows the second mold 23. (B) is a case where a locking part 51 consisting of a slit is formed on the outer peripheral surface of the second mold 23, (c) The second mold 23 is provided with a locking portion 52 including a clamp mechanism (fastening tool) on the outer peripheral surface, and any one of the locking structures can be employed. In addition, when forming the latching | locking part 50 which consists of a bowl-shaped pin in the outer peripheral surface of the 2nd metal mold | die 23, the hole which can be fitted in the latching | locking part 50 is formed in the edge part of the outer blade raw material 24. It is necessary to keep.

図１１は、外刃素材２４の端部の第２の金型２３への係止状態を示す図であり、（ａ）は、外刃素材２４の端部に形成した孔を第２の金型２３の外周面に形成した係止部５０に嵌合させることで外刃素材２４の端部を係止させたもので、これにより第２の金型２３を転動させたときに外刃素材２４が第２の金型２３の外周面に巻き付けられるようにしたもの、（ｂ）は、外刃素材２４の端部を第２の金型２３の外周面に形成した係止部５１に差し込むことで外刃素材２４の端部を係止させたもので、これにより第２の金型２３を転動させたときに外刃素材２４が第２の金型２３の外周面に巻き付けられるようにしたもの、（ｃ）は、外刃素材２４の端部を第２の金型２３の外周面に設けた係止部５２に挟み込むことで外刃素材２４の端部を係止させたもので、第２の金型２３を転動させたときに外刃素材２４が第２の金型２３の外周面に巻き付けられるようにしたものである。   FIG. 11 is a view showing a state where the end portion of the outer blade material 24 is locked to the second mold 23, and (a) shows a hole formed in the end portion of the outer blade material 24 in the second mold. The end of the outer blade material 24 is locked by being fitted to a locking portion 50 formed on the outer peripheral surface of the mold 23, so that when the second mold 23 is rolled, the outer blade The material 24 is wound around the outer peripheral surface of the second mold 23, and (b) is an engagement portion 51 in which the end of the outer blade material 24 is formed on the outer peripheral surface of the second mold 23. The end portion of the outer blade material 24 is locked by being inserted, whereby the outer blade material 24 is wound around the outer peripheral surface of the second die 23 when the second die 23 is rolled. In the case of (c), the end portion of the outer blade material 24 is engaged by engaging the end portion of the outer blade material 24 with the engaging portion 52 provided on the outer peripheral surface of the second mold 23. One obtained by, in which the outer cutter material 24 when is rolled a second mold 23 is to be wound around the outer peripheral surface of the second mold 23.

図１２は、転写・曲げ工程１２を実施するための加工装置１６の別の構成例を模式的に示すもので、板状部材５７の表面に複数の歯５８がメッシュ状に形成されてなる第１の金型６０と、曲面形状部材６１の曲面を有する外周面に第１の金型６０の歯５８に噛み合う複数の歯６２がメッシュ状に形成されてなる第２の金型６３と、第１の金型６０面に直交する第１の方向及び第２の金型６０面に平行な第２の方向に駆動可能なカム６４と、第２の金型６０の内部に形成された空洞部６５においてカム６４を摺動させるもので、第２の金型６０の外周面に対応する曲面に沿って形成されたカム受け部６６とを備えている。   FIG. 12 schematically shows another configuration example of the processing device 16 for carrying out the transfer / bending step 12, in which a plurality of teeth 58 are formed in a mesh shape on the surface of the plate-like member 57. A first mold 60, a second mold 63 in which a plurality of teeth 62 meshing with the teeth 58 of the first mold 60 are formed in a mesh shape on the outer peripheral surface having the curved surface of the curved surface-shaped member 61, A cam 64 that can be driven in a first direction orthogonal to the surface of one mold 60 and in a second direction parallel to the surface of the second mold 60, and a cavity formed inside the second mold 60 A cam 64 is slid at 65, and is provided with a cam receiving portion 66 formed along a curved surface corresponding to the outer peripheral surface of the second mold 60.

この第２の金型６３を構成する曲面形状部材６１は、歯６２の形成される外周面が外刃１１の内周面形状（内のり形状）に合致した曲面形状を有するものである。すなわち、この曲面形状部材６１は、図１３に示すように、長手方向（Ｘ１―Ｘ２）と直交する方向（Ｙ１―Ｙ２）の断面がＵ字（半楕円形状又は半長円形状）に近似した輪郭を有するものであり、先端ａの両側に線対称となる互いに外側に膨らんだ曲面ｂ、ｃを有する長手方向（Ｘ１―Ｘ２）に伸びる外周面ｄと、長手方向（Ｘ１―Ｘ２）に互いに対向する２つの側面ｅ、ｆと、２つの側面ｅ、ｆを結ぶ平面ｇとを備えたブロック体からなるものである。なお、カム６４は、第２の金型６３の空洞部６５内に配設され、空洞部６５における第２の金型６３の内周面に形成されたカム受け部６６を摺動するようになっており、第１の金型６０面に直交する方向の押圧力が加えられることで第２の金型６３を第１の金型６０側に押圧する。   The curved surface shape member 61 constituting the second mold 63 has a curved surface shape in which the outer peripheral surface on which the teeth 62 are formed matches the inner peripheral surface shape (inner shape) of the outer cutter 11. That is, as shown in FIG. 13, the curved surface-shaped member 61 has a cross section in the direction (Y1-Y2) orthogonal to the longitudinal direction (X1-X2) approximated to a U-shape (semi-elliptical or semi-ellipsoidal shape). An outer peripheral surface d extending in the longitudinal direction (X1-X2) having curved surfaces b and c that are symmetrical with each other on both sides of the tip end a and extending in the longitudinal direction (X1-X2), and in the longitudinal direction (X1-X2) It consists of a block body provided with two opposing side surfaces e and f and a plane g connecting the two side surfaces e and f. The cam 64 is disposed in the cavity 65 of the second mold 63 and slides on the cam receiving part 66 formed on the inner peripheral surface of the second mold 63 in the cavity 65. The second mold 63 is pressed toward the first mold 60 by applying a pressing force in a direction perpendicular to the surface of the first mold 60.

このような構成になる加工装置１６では、図３に示す構成と同様に、第１の金型６０面に沿って外刃素材２４を配置し、この外刃素材２４に対して第２の金型６３により押圧力を加える一方、第２の金型６３をその外周面に外刃素材２４を巻き付けながら第１の金型６０に沿って転動させる。   In the processing apparatus 16 having such a configuration, the outer blade material 24 is disposed along the surface of the first mold 60 as in the configuration shown in FIG. While a pressing force is applied by the mold 63, the second mold 63 is rolled along the first mold 60 while the outer blade material 24 is wound around the outer peripheral surface thereof.

すなわち、第２の金型６３を先端ａが外刃素材２４の中央部側に向き、一方の曲面ｂが外刃素材２４に向くような状態で横臥させ、その一方の曲面ｂにおける先端ａから所定寸法だけ離間した箇所に外刃素材２４の端部を係止させて固定しておき、この状態でカム６４をカム受け部６６に対して押圧力を加えつつ第１の金型６０面に平行な方向に移動させる。これにより、カム受け部６６がカム６４の移動に応じて順次押圧されていくことで、第２の金型６３は外刃素材２４の中央部で立ち上がり、その後に横臥されて他方の曲面ｃにおける先端ａから所定寸法だけ離間した箇所が外刃素材２４に当接するまで転動されることになる。   That is, the second mold 63 is laid down with the tip a facing toward the center of the outer blade material 24 and the one curved surface b facing the outer blade material 24, and from the tip a on the one curved surface b. The end portion of the outer blade material 24 is locked and fixed at a position separated by a predetermined dimension, and in this state, the cam 64 is applied to the surface of the first mold 60 while pressing the cam receiving portion 66. Move in parallel direction. Accordingly, the cam receiving portion 66 is sequentially pressed according to the movement of the cam 64, whereby the second die 63 rises at the center portion of the outer blade material 24, and then is laid down on the other curved surface c. Rolling is performed until a part separated from the tip a by a predetermined dimension contacts the outer blade material 24.

これにより、図５に示すように、第１の金型６０と第２の金型６３とにより凹凸２６がメッシュ状に形成（転写）された状態で外刃素材２４が第２の金型６３の外周面に巻き付けられることで、外刃素材２４が第２の金型６３の外周面形状に合致した内周面形状を有する曲面形状に成型されることになる。   As a result, as shown in FIG. 5, the outer blade material 24 is formed in the second mold 63 in a state where the unevenness 26 is formed (transferred) in a mesh shape by the first mold 60 and the second mold 63. As a result, the outer blade material 24 is molded into a curved surface shape having an inner peripheral surface shape that matches the outer peripheral surface shape of the second mold 63.

図１４は、転写・曲げ工程において用いられる上述した別の構成例の加工装置１６の具体的構成例を示す図である。すなわち、加工装置１６は、上述した第１の金型６０及び第２の金型６３（いずれも歯５８、６２の図示を省略）と、第１の金型６０面に沿わせて配置した板状の外刃素材２４に対し第２の金型６３により押圧力を加える一方、第２の金型６３をその外周面に外刃素材２４を巻き付けながら第１の金型６０に沿って転動させることで、外刃素材２４に凹凸２６（図５）をメッシュ状に形成しつつ外刃素材２４を曲面形状に成型する転動機構部６８とを備えている。   FIG. 14 is a diagram showing a specific configuration example of the processing apparatus 16 of another configuration example described above used in the transfer / bending process. That is, the processing apparatus 16 includes the first mold 60 and the second mold 63 (both of which the illustrations of the teeth 58 and 62 are omitted) and the plate disposed along the surface of the first mold 60. While the outer die material 24 is pressed by the second die 63, the second die 63 rolls along the first die 60 while the outer cutter material 24 is wound around the outer peripheral surface thereof. Thus, a rolling mechanism portion 68 is provided which forms the outer cutter material 24 into a curved shape while forming the irregularities 26 (FIG. 5) in a mesh shape on the outer cutter material 24.

ここで、第１の金型６０は、台座６９上に設置されている。また、転動機構部６８は、第１の金型６０面に沿わせて配置した板状の外刃素材２４に対し、第２の金型６３の接触面積に対応した押圧力（外刃素材２４に対する接触面積が少ない曲面領域では接触面積の多い曲面領域よりも小さい押圧力とし、外刃素材２４に対する接触面積が多い曲面領域では接触面積の少ない曲面領域よりも大きい押圧力とする。）を第２の金型６３により加えるようにしたもので、第２の金型６３の空洞部６５内に配設された上述のカム６４と、カム６４を摺動させるカム受け部６６と、カム６４を第１の金型６０面と直交する方向に押圧力を加えながらカム受け部６６を摺動して第１の金型６０面に平行な方向に移動させる移動機構７１とを備えている。   Here, the first mold 60 is installed on a pedestal 69. Further, the rolling mechanism 68 is configured to apply a pressing force (outer blade material) corresponding to the contact area of the second die 63 to the plate-like outer blade material 24 arranged along the surface of the first die 60. In the curved region where the contact area with respect to 24 is small, the pressing force is smaller than the curved region where the contact area is large, and in the curved region where contact area with the outer blade material 24 is large, the pressing force is larger than the curved region where the contact area is small. It is added by the second mold 63, and the cam 64 disposed in the cavity 65 of the second mold 63, the cam receiving section 66 for sliding the cam 64, and the cam 64. And a moving mechanism 71 for sliding the cam receiving portion 66 in a direction parallel to the first mold 60 surface while applying a pressing force in a direction perpendicular to the first mold 60 surface.

ここで、カム６４は、図１５に示すように、第２の金型６３の両側面から外方にそれぞれ突出する支持軸体７２、７２が同軸状に設けられたものである。また、カム受け部６６は、上述したように、第２の金型６３の内部に形成されてカム６４を摺動させるもので、第２の金型６３の外周面に対応する曲面に沿って形成され、図１５に示すように、カム６４が摺動可能な凹溝７３により構成されたものである。   Here, as shown in FIG. 15, the cam 64 is provided with support shaft bodies 72, 72 coaxially projecting outward from both side surfaces of the second mold 63. Further, as described above, the cam receiving portion 66 is formed inside the second mold 63 and slides the cam 64, and is along a curved surface corresponding to the outer peripheral surface of the second mold 63. As shown in FIG. 15, the cam 64 is formed by a slidable groove 73.

移動機構７１は、第１の金型６０の一端側（図示の左側）と他端側（図示の右側）とにおける台座６９にそれぞれ立設された直動アクチュエータ７５、７５と、この直動アクチュエータ７５、７５に跨って配設された天板７６と、この天板７６に取り付けられた金型駆動部７７とを備えている。   The moving mechanism 71 includes linear motion actuators 75 and 75 erected on a pedestal 69 on one end side (left side in the figure) and the other end side (right side in the figure) of the first mold 60, and the linear motion actuator. 75 and 75, and a mold driving unit 77 attached to the top plate 76.

直動アクチュエータ７５、７５は、軸駆動部７８により駆動軸体７９が軸方向（図示の上下方向）に伸縮可能に構成されたものである。また、金型駆動部７７は、天板７６に取り付けられた一対の軸受け８０、８０により回転可能に軸支され、第２の金型６３の上方に配設されたねじ軸８１と、このねじ軸８１に螺合され、ねじ軸８１の回転により軸方向に移動されるナット部材８２と、このナット部材８２から垂下される押圧部材８３と、第２の金型６３の両側面側（紙面を貫く方向の手前側及び奥行側）にそれぞれ配設され、支持軸体７２、７２をそれぞれ支持する支持部材８４、８４（手前側の一方のみ図示）と、支持部材８４、８４を上部で連結する平板部材８５と、押圧部材８３と平板部材８５との間に配設された圧力センサ８６と、天板７６に取り付けられ、ねじ軸８１を回転駆動する駆動モータ８７とを備えている。この駆動モータ８７は、ねじ軸８１の回転数を検出するためのエンコーダ８８が付設されたものである。   The linear actuators 75 and 75 are configured such that a drive shaft body 79 can be expanded and contracted in the axial direction (the vertical direction in the figure) by a shaft drive unit 78. The mold driving unit 77 is rotatably supported by a pair of bearings 80, 80 attached to the top plate 76, and a screw shaft 81 disposed above the second mold 63, and the screw A nut member 82 that is screwed to the shaft 81 and moved in the axial direction by the rotation of the screw shaft 81, a pressing member 83 that hangs down from the nut member 82, and both side surfaces of the second mold 63 (on the paper surface) The support members 84 and 84 (only one of the front sides are shown) disposed on the front side and the depth side in the penetrating direction and respectively supporting the support shaft bodies 72 and 72 are connected to the support members 84 and 84 at the upper part. A flat plate member 85, a pressure sensor 86 disposed between the pressing member 83 and the flat plate member 85, and a drive motor 87 that is attached to the top plate 76 and rotates the screw shaft 81 are provided. This drive motor 87 is provided with an encoder 88 for detecting the rotational speed of the screw shaft 81.

このように構成された加工装置１６によれば、直動アクチュエータ７５、７５の駆動軸体７９を伸縮させて長さを調節することで天板７６をカム６４が第２の金型６３に対して所定の押圧力を加え得る位置に設定しておき、この状態でねじ軸８１の回転によりナット部材８２がねじ軸８１の一端側（図示の左端側）と他端側（図示の右端側）との間を移動することで、支持部材８４、８４に支持軸体７２、７２を介して支持されたカム６４がカム受け部６６を押圧しつつカム受け部６６を摺動して第１の金型６０に平行に移動する結果、第２の金型６３が第１の金型６０の一端側と他端側との間で第１の金型６０に沿って転動することになる。   According to the processing apparatus 16 configured in this way, the cam 64 is moved from the second mold 63 by the cam 64 with respect to the top plate 76 by adjusting the length by expanding and contracting the drive shaft body 79 of the linear actuators 75 and 75. In this state, the nut member 82 is rotated at one end side (the left end side in the drawing) and the other end side (the right end side in the drawing) by rotating the screw shaft 81. , The cam 64 supported by the support members 84 and 84 via the support shafts 72 and 72 slides on the cam receiver 66 while pressing the cam receiver 66. As a result of moving parallel to the mold 60, the second mold 63 rolls along the first mold 60 between one end side and the other end side of the first mold 60.

すなわち、カム６４が第１の金型６０の一端側に移動されたときに、第２の金型６３が先端ａを第１の金型６０の中央部側に向けて横臥された状態となるようにカム６４と第２の金型６３との位置関係を設定しておくことで、カム６４が第１の金型６０の一端側から第１の金型６０の中央部に移動されるときには、カム６４がカム受け部６６を押圧しつつ摺動する結果、カム受け部６６が順次押圧されていくことで第２の金型６３が立ち上がった状態となる。また、カム６４が第１の金型６０の中央部から他端側に移動されるときには、カム６４がカム受け部６６を押圧しつつ摺動する結果、カム受け部６６が順次押圧されていくことで第２の金型６３が先端ａを第１の金型６０の中央部側に向けて横臥された状態となる。   That is, when the cam 64 is moved to one end side of the first mold 60, the second mold 63 is in a state where the tip a is directed toward the center portion side of the first mold 60. By setting the positional relationship between the cam 64 and the second mold 63 in this way, when the cam 64 is moved from one end side of the first mold 60 to the center portion of the first mold 60. As a result of the cam 64 sliding while pressing the cam receiving portion 66, the cam receiving portion 66 is sequentially pressed, so that the second mold 63 rises. Further, when the cam 64 is moved from the central portion of the first mold 60 to the other end side, the cam 64 is slid while pressing the cam receiving portion 66, so that the cam receiving portion 66 is sequentially pressed. As a result, the second mold 63 is in a state of being laid down with the tip a facing toward the center of the first mold 60.

このようにして第２の金型６３が転動される場合、第２の金型６３を構成する曲面形状部材６１はＵ字に近似した曲面形状を有していることから、第２の金型６３の第１の金型６０に対する接触面積が変動することになるが、直動アクチュエータ７５、７５の伸縮動作により第１の金型６０に対する接触面積が大きい場合には小さい場合に比べて押圧力を大きくし、第１の金型６０に対する接触面積が小さい場合には大きい場合に比べて押圧力を小さくすることで、第２の金型６３による単位面積当たりの押圧力が略一定に制御される。これにより、外刃素材２４を安定した条件で成型することが可能となる。   When the second mold 63 is rolled in this manner, the curved surface-shaped member 61 constituting the second mold 63 has a curved surface shape that approximates a U-shape. The contact area of the mold 63 with respect to the first mold 60 varies. However, when the contact area with respect to the first mold 60 is large due to the expansion and contraction of the linear motion actuators 75 and 75, the pressing area is smaller than when the contact area is small. When the pressure is increased and the contact area with the first mold 60 is small, the pressing force per unit area by the second mold 63 is controlled to be substantially constant by reducing the pressing force as compared with the case where the pressure is large. Is done. Thereby, it becomes possible to shape | mold the outer blade raw material 24 on the stable conditions.

すなわち、第２の金型６３の第１の金型６０に対する接触面積は第２の金型６３が横臥した状態から立直した状態になるに従って小さくなり、立直した状態から横臥した状態になるに従って大きくなる。このため、エンコーダ８８により検出したねじ軸８１の基準位置からの回転数とカム６４の位置（すなわち、ねじ軸８１の基準位置からの回転数と第２の金型６３の接触面積）とを対応づけておき、ねじ軸８１の基準位置からの回転数に応じて直動アクチュエータ７５、７５の動作を制御する（すなわち、接触面積が小さい場合は直動アクチュエータ７５、７５の駆動軸体７９、７９を伸長させ、接触面積が大きい場合は駆動軸体７９、７９を縮小させる。）ことで、第２の金型６３による第１の金型６０に対する単位面積当たりの押圧力が略一定に設定される。なお、圧力センサ８６は、実際の押圧力を監視するものであり、圧力センサ８６から出力される信号に基づいて直動アクチュエータ７５、７５の軸駆動部７８が伸縮される。   That is, the contact area of the second mold 63 with respect to the first mold 60 decreases as the second mold 63 changes from the lying state to the upright state, and increases as the second mold 63 changes from the upright state to the lying state. Become. For this reason, the rotation speed from the reference position of the screw shaft 81 detected by the encoder 88 corresponds to the position of the cam 64 (that is, the rotation speed from the reference position of the screw shaft 81 and the contact area of the second mold 63). In addition, the operation of the linear actuators 75 and 75 is controlled in accordance with the rotational speed from the reference position of the screw shaft 81 (that is, when the contact area is small, the drive shaft bodies 79 and 79 of the linear actuators 75 and 75 are controlled. When the contact area is large, the drive shafts 79 and 79 are contracted.) By this, the pressing force per unit area of the second mold 63 against the first mold 60 is set to be substantially constant. The The pressure sensor 86 monitors the actual pressing force, and the shaft drive unit 78 of the linear actuators 75 and 75 is expanded and contracted based on a signal output from the pressure sensor 86.

これにより、第１の金型６０面に沿って板状の外刃素材２４を配置し、第２の金型６３の一方の曲面ｂにおける先端ａから離間した箇所に外刃素材２４の端部を係止した状態でカム６４を第１の金型６０の一端側から他端側に向けて移動させることにより、第２の金型６３は外刃素材２４に対して接触面積に対応した押圧力を加えながら転動される結果、外刃素材２４は凹凸２６がメッシュ状に形成された状態で第２の金型６３の外周面に巻き付けられて曲面形状に成型されることになる。   Thereby, the plate-shaped outer blade material 24 is arranged along the surface of the first mold 60, and the end portion of the outer blade material 24 is located at a position away from the tip a on one curved surface b of the second mold 63. When the cam 64 is moved from one end side to the other end side of the first mold 60 in a state in which the second mold 63 is locked, the second mold 63 presses the outer blade material 24 in accordance with the contact area. As a result of rolling while applying pressure, the outer blade material 24 is wound around the outer peripheral surface of the second mold 63 and formed into a curved shape with the irregularities 26 formed in a mesh shape.

このように、図１４に示す構成の加工装置１６では、第２の金型６３が外刃素材２４に対して接触面積に対応した押圧力を加えながら転動されるため、外刃素材２４がより正確な寸法精度で成型されることになる。なお、外刃素材２４の端部の係止構造は、図１０に示す構成が採用される。   As described above, in the processing apparatus 16 having the configuration shown in FIG. 14, the second die 63 is rolled while applying a pressing force corresponding to the contact area to the outer blade material 24. It will be molded with more accurate dimensional accuracy. In addition, the structure shown in FIG. 10 is employ | adopted for the latching structure of the edge part of the outer blade raw material 24. FIG.

図１６は、図１４に示す構成の加工装置１６の押圧力を調整するための制御構成を説明するためのブロック図である。すなわち、加工装置１６は、押圧力を調整するための制御部９０を備えている。この制御部９０は、演算処理を実行するＣＰＵ、処理プログラムやデータなどを記憶するＲＯＭ、及び、データを一時的に記憶するＲＡＭを備えたマイクロコンピュータなどで構成されたもので、圧力センサ８６及びエンコーダ８８が接続されると共に、直動アクチュエータ７５、７５及び駆動モータ８７が接続されたものである。   FIG. 16 is a block diagram for explaining a control configuration for adjusting the pressing force of the processing apparatus 16 having the configuration shown in FIG. That is, the processing device 16 includes a control unit 90 for adjusting the pressing force. The control unit 90 includes a CPU that executes arithmetic processing, a ROM that stores processing programs and data, and a microcomputer that includes a RAM that temporarily stores data. The encoder 88 is connected, and the linear actuators 75 and 75 and the drive motor 87 are connected.

また、制御部９０には、プレス力算出部９１、直動アクチュエータ制御部９２、押圧力判別部９３、モータ制御部９４、位置検出部９５、及び、位置判別部９６の各機能実現部を備えている。ここで、プレス力算出部９１は、カム６４による第２の金型６３（カム受け部６６）に対する押圧力を算出するものである。この押圧力は、例えば、ねじ軸８１の基準位置からの回転数（あるいは、第２の金型６３の第１の金型６０に対する位置）から接触面積に対応した押圧力を求める計算式がＲＯＭなどの記憶部に記憶されており、この計算式に基づき算出される。   In addition, the control unit 90 includes function realizing units such as a pressing force calculation unit 91, a linear motion actuator control unit 92, a pressing force determination unit 93, a motor control unit 94, a position detection unit 95, and a position determination unit 96. ing. Here, the pressing force calculation unit 91 calculates the pressing force of the cam 64 against the second mold 63 (cam receiving portion 66). For example, the calculation formula for calculating the pressing force corresponding to the contact area from the number of rotations from the reference position of the screw shaft 81 (or the position of the second mold 63 with respect to the first mold 60) is ROM. And is calculated based on this calculation formula.

直動アクチュエータ制御部９２は、直動アクチュエータ７５、７５の軸駆動部７８、７８の動作を制御してプレス力算出部９１で算出された押圧力を加えるのに必要な位置に駆動軸体７９、７９を伸縮させるものである。押圧力判別部９３は、圧力センサ８６から出力される信号に基づいてプレス力算出部９１で算出された押圧力が実際に加えられているか否かを判別するものである。   The linear motion actuator control unit 92 controls the operation of the shaft drive units 78 and 78 of the linear motion actuators 75 and 75 to apply the pressing force calculated by the press force calculation unit 91 to a position necessary for applying the drive shaft body 79. 79 are expanded and contracted. The pressing force determination unit 93 determines whether or not the pressing force calculated by the pressing force calculation unit 91 is actually applied based on a signal output from the pressure sensor 86.

モータ制御部９４は、駆動モータ８７の速度を制御するもので、カム６４を第１の金型６０面に平行な方向に一定速度で移動させるものである。位置検出部９５は、ねじ軸８１の基準位置からの回転数に基づいてカム６４（あるいは、第２の金型６３）の位置を検出するものである。位置判別部９６は、位置検出部９５で検出された位置データとプレス終了位置データと比較することでカム６４の位置が外刃素材２４を成型し終わった位置であるプレス終了位置に達したか否かを判別するものである。   The motor control unit 94 controls the speed of the drive motor 87 and moves the cam 64 at a constant speed in a direction parallel to the surface of the first mold 60. The position detector 95 detects the position of the cam 64 (or the second mold 63) based on the number of rotations from the reference position of the screw shaft 81. The position determination unit 96 compares the position data detected by the position detection unit 95 with the press end position data to determine whether the position of the cam 64 has reached the press end position where the outer cutter blank 24 has been formed. This is to determine whether or not.

図１７は、図１４に示す構成の加工装置１６の動作例を説明するためのフローチャートである。まず、カム６４（あるいは、第２の金型６３）の現状の位置が位置検出部９５により検出され（ステップＳ１）、その後にカム６４の位置がプレス終了位置に達しているか否かが位置判別部９６により判別される（ステップＳ３）。   FIG. 17 is a flowchart for explaining an operation example of the machining apparatus 16 having the configuration shown in FIG. First, the current position of the cam 64 (or the second mold 63) is detected by the position detector 95 (step S1), and then it is determined whether or not the position of the cam 64 has reached the press end position. It is discriminated by the part 96 (step S3).

ステップＳ３における判別が否定されると、現状の位置における第２の金型６３の接触面積に対応した押圧力（すなわち、単位面積当りの押圧力を一定にするための押圧力）である目標プレス力がプレス力算出部９１により算出され（ステップＳ５）、その算出された目標プレス力に基づいて直動アクチュエータ７５、７５の軸駆動部７８、７８が直動アクチュエータ制御部９２により駆動され、駆動軸体７９、７９が所定の伸縮長さに設定される（ステップＳ７）。   If the determination in step S3 is negative, the target press is a pressing force corresponding to the contact area of the second mold 63 at the current position (that is, a pressing force for making the pressing force per unit area constant). The force is calculated by the pressing force calculation unit 91 (step S5), and the axis driving units 78 and 78 of the linear actuators 75 and 75 are driven by the linear actuator control unit 92 based on the calculated target pressing force. The shaft bodies 79, 79 are set to a predetermined expansion / contraction length (step S7).

次いで、算出された目標プレス力（押圧力）が第２の金型６３に加えられているか否かが押圧力判別部９３により判別される（ステップＳ９）。この判別が肯定されると、駆動モータ８７がモータ制御部９４により駆動され、カム６４が次の位置に移動され（ステップＳ１１）、引き続いてステップＳ１に移行し、その後のステップが繰り返し実行される。なお、ステップＳ３における判別が肯定されると、カム６４の移動が終了する。また、ステップＳ９における判別が否定されると、ステップＳ７に移行し、その後のステップが繰り返し実行される。   Next, whether or not the calculated target pressing force (pressing force) is applied to the second mold 63 is determined by the pressing force determining unit 93 (step S9). If this determination is affirmed, the drive motor 87 is driven by the motor control unit 94, the cam 64 is moved to the next position (step S11), the process proceeds to step S1, and the subsequent steps are repeatedly executed. . If the determination in step S3 is affirmative, the movement of the cam 64 ends. If the determination in step S9 is negative, the process proceeds to step S7, and the subsequent steps are repeatedly executed.

以上のように、本発明の電気かみそりの曲面形状を有する外刃の加工方法の転写・曲げ工程１２において用いられる加工装置１６、１６は、板状部材の表面に複数の歯が形成されてなる第１の金型２０、６０と、外周面が外刃の内周面形状に合致した形状を有する曲面形状部材の当該外周面に第１の金型２０、６０の歯に噛み合う複数の歯が形成されてなる第２の金型２３、６３と、第１の金型２０、６０面に配置した板状の外刃素材２４に対して第２の金型２３、６３により押圧力を加えつつ第２の金型２３、６３をその外周面に外刃素材２４を巻き付けながら第１の金型２０、６０に沿って転動させる転動機構部３１、６８とを備えているため、刃を形成するための凹凸２６の形成（転写）と、外刃素材２４の曲面形状への成型とを同時に行うことができる結果、外刃１１を加工するための工程数を効果的に削減することができ、製造コストの低廉化を容易に促進することができる。   As described above, the processing devices 16 and 16 used in the transfer / bending step 12 of the processing method of the outer blade having the curved shape of the electric razor according to the present invention have a plurality of teeth formed on the surface of the plate-like member. A plurality of teeth meshing with the teeth of the first molds 20 and 60 on the outer peripheral surface of the first mold 20 and 60 and the curved surface member whose outer peripheral surface matches the inner peripheral shape of the outer blade. While applying the pressing force by the second molds 23 and 63 to the formed second molds 23 and 63 and the plate-like outer blade material 24 arranged on the first molds 20 and 60 surface, Since the second molds 23 and 63 are provided with rolling mechanism portions 31 and 68 that roll along the first molds 20 and 60 while winding the outer blade material 24 around the outer peripheral surface thereof, the blades Simultaneously forming (transferring) the irregularities 26 for forming and forming the outer blade material 24 into a curved shape. Results that can be performed, it is possible to reduce the number of steps for processing the outer blade 11 effectively, it is possible to easily promote the cost reduction of manufacturing cost.

なお、本発明の電気かみそりの曲面形状を有する外刃の加工方法及び加工装置は、上記実施形態のように構成されるものであるが、これらの実施形態のものに限るものではない。例えば、以下に述べるような種々の変形態様を必要に応じて採用することができる。   In addition, although the processing method and processing apparatus of the outer blade which has the curved shape of the electric razor of this invention are comprised like the said embodiment, it is not restricted to the thing of these embodiment. For example, various modifications as described below can be adopted as necessary.

（１）上記実施形態では、上述の加工装置１６、１６において、第２の金型２３、６３の外周面に巻き付けられた外刃素材２４を第２の金型２３、６３から離脱させるための格別な構成を採用していないが、例えば、図１８乃至図２０に示す何れかの構成を採用することもできる。   (1) In the above embodiment, in the above-described processing apparatuses 16 and 16, the outer blade material 24 wound around the outer peripheral surface of the second mold 23 and 63 is detached from the second mold 23 and 63. Although no special configuration is employed, for example, any configuration shown in FIGS. 18 to 20 may be employed.

すなわち、図１８は、上述の加工装置１６、１６において、第２の金型２３、６３の外周面に巻き付けた外刃素材２４を第２の金型２３、６３から容易に離脱させるようにした第１の構成例を示す図である。この第１の構成例では、図１８（ａ）に示すように、外刃素材２４と第２の金型２３、６３との間に、外刃素材２４よりも長い寸法を有する樹脂製などのフィルムシート１００を介在させた状態で外刃素材２４を第２の金型２３、６３の外周面に巻き付けるようにしたものである。   That is, FIG. 18 shows that the outer blade material 24 wound around the outer peripheral surfaces of the second molds 23 and 63 is easily detached from the second molds 23 and 63 in the processing devices 16 and 16 described above. It is a figure which shows the 1st structural example. In the first configuration example, as shown in FIG. 18A, a resin having a longer dimension than the outer blade material 24 is provided between the outer blade material 24 and the second molds 23 and 63. The outer blade material 24 is wound around the outer peripheral surfaces of the second molds 23 and 63 with the film sheet 100 interposed.

このように、外刃素材２４と第２の金型２３、６３との間にフィルムシート１００を介在させる場合、第１の金型２０、６０上に設置する外刃素材２４の上に予めフィルムシート１００を載置しておき、この状態で第２の金型２３、６３を第１の金型２０、６０に沿って転動させるようにすればよい。このような加工方法によれば、図１８（ｂ）に示すように、外刃素材２４と第２の金型２３、６３との間から露出するフィルムシート１００の端部を把持して外刃素材２４を離脱させる方向に引っ張ることで成型した外刃素材２４を第２の金型２３、６３から容易に離脱させることができる。   As described above, when the film sheet 100 is interposed between the outer cutter material 24 and the second molds 23 and 63, the film is previously placed on the outer cutter material 24 installed on the first molds 20 and 60. The sheet 100 may be placed and the second molds 23 and 63 may be rolled along the first molds 20 and 60 in this state. According to such a processing method, as shown in FIG. 18 (b), the edge of the film sheet 100 exposed from between the outer blade material 24 and the second molds 23, 63 is gripped, and the outer blade The outer blade material 24 formed by pulling in the direction in which the material 24 is detached can be easily detached from the second molds 23 and 63.

図１９は、上述の加工装置１６、１６において、第２の金型２３、６３の外周面に巻き付けた外刃素材２４を第２の金型２３、６３から容易に離脱させるようにした第２の構成例を示す図である。この第２の構成例では、図１９（ａ）に示すように、第２の金型２３、６３の内部に、第２の金型２３、６３の外刃素材２４が巻き付けられる外周面に設けられた複数の吐出口１０２から空気などの流体を吐出させる流体通路１０３を設けたもので、これらの吐出口１０２を覆うように外刃素材２４を第２の金型２３、６３の外周面に巻き付けるようにしたものである。   FIG. 19 shows a second embodiment in which the outer cutter material 24 wound around the outer peripheral surface of the second mold 23, 63 is easily detached from the second mold 23, 63 in the above-described processing devices 16, 16. It is a figure which shows the example of a structure. In the second configuration example, as shown in FIG. 19A, the second molds 23 and 63 are provided on the outer peripheral surface around which the outer blade material 24 of the second molds 23 and 63 is wound. The fluid passage 103 for discharging fluid such as air from the plurality of discharge ports 102 is provided, and the outer blade material 24 is provided on the outer peripheral surface of the second molds 23 and 63 so as to cover these discharge ports 102. It is designed to be wrapped around.

このように、第２の金型２３、６３の内部に空気などの流体を吐出させる流体通路１０３を設けた場合、図１９（ｂ）に示すように、流体供給部１０４から第２の金型２３、６３の流体通路１０３に空気などの流体を送り込むようにすると、吐出口１０２から排出される流体の圧力により第２の金型２３、６３の外周面に巻き付けられた外刃素材２４が押し広げられる結果、外刃素材２４を第２の金型２３、６３の外周面から容易に離脱させることができる。   As described above, when the fluid passage 103 for discharging a fluid such as air is provided inside the second molds 23 and 63, as shown in FIG. When a fluid such as air is fed into the fluid passages 103 of the second and third dies 23 and 63, the outer blade material 24 wound around the outer peripheral surfaces of the second molds 23 and 63 is pushed by the pressure of the fluid discharged from the discharge port 102. As a result of spreading, the outer blade material 24 can be easily detached from the outer peripheral surfaces of the second molds 23 and 63.

図２０は、上述の加工装置１６、１６において、第２の金型２３、６３の外周面に巻き付けた外刃素材２４を第２の金型２３、６３から容易に離脱させるようにした第３の構成例を示す図である。この第３の構成例では、図２０（ａ）に示すように、第２の金型２３、６３を、中央に配設される中央部材１０６と、この中央部材１０６の第１の金型２０，６０の一端側及び他端側である両側に互いに離脱可能に配設される２つの外側部材１０７、１０７と、この２つの外側部材１０７、１０７を互いに中央部材１０６側に付勢するバネなどからなる２つの付勢部材１０８、１０８とから構成したもので、このように構成した第２の金型２３、６３の外周面に外刃素材２４を巻き付けるようにしたものである。   FIG. 20 shows a third example in which the outer cutter material 24 wound around the outer peripheral surfaces of the second molds 23 and 63 is easily detached from the second molds 23 and 63 in the processing apparatuses 16 and 16 described above. It is a figure which shows the example of a structure. In the third configuration example, as shown in FIG. 20A, the second molds 23 and 63 are arranged by a central member 106 disposed in the center and the first mold 20 of the central member 106. , 60, two outer members 107, 107 that are detachably disposed on both sides that are one end side and the other end side, and a spring that urges the two outer members 107, 107 toward the central member 106 side, etc. The outer blade material 24 is wound around the outer peripheral surfaces of the second molds 23 and 63 configured as described above.

すなわち、中央に位置する中央部材１０６は、先端が先細り状となる楔形形状を有するもので、２つの外側部材１０７、１０７から容易に引き抜くことができるようにしたものである。また、付勢部材１０８、１０８は、第２の金型２３、６３の両側面にそれぞれ設けられたもので（一方の側面のみ図示）、両端がそれぞれの外側部材１０７、１０７の側面に設けられたピン体１０９、１０９に係止されている。   That is, the central member 106 located at the center has a wedge shape with a tapered tip, and can be easily pulled out from the two outer members 107 and 107. The urging members 108 and 108 are provided on both side surfaces of the second mold 23 and 63 (only one side surface is shown), and both ends are provided on the side surfaces of the outer members 107 and 107, respectively. The pin bodies 109 and 109 are locked.

このように、第２の金型２３、６３を、中央に配設される中央部材１０６と、この中央部材１０６の両側にそれぞれ離脱可能に配設される２つの外側部材１０７、１０７と、この２つの外側部材１０７、１０７を互いに中央部材１０６側に付勢するバネなどからなる２つの付勢部材１０８、１０８とから構成した場合、図２０（ｂ）に示すように、引き上げ機構部１１０により中央部材１０６を上方に引き抜くことで２つの外側部材１０７、１０７が互いに引き寄せられる結果、外刃素材２４を第２の金型２３、６３の外周面から容易に離脱させることができる。   As described above, the second molds 23 and 63 are provided with a central member 106 disposed in the center, two outer members 107 and 107 disposed detachably on both sides of the central member 106, and When the two outer members 107 and 107 are constituted by two urging members 108 and 108 made of springs or the like for urging each other toward the central member 106 side, as shown in FIG. By pulling the central member 106 upward, the two outer members 107 and 107 are pulled toward each other. As a result, the outer blade material 24 can be easily detached from the outer peripheral surfaces of the second molds 23 and 63.

（２）上記実施形態では、転写・曲げ工程１２において用いられる図９に示す加工装置１６は、１つの外刃の転写・曲げ加工を行うものであるが、２つの外刃の転写・曲げ加工を同時に行うことができる構成とすることもできる。   (2) In the above embodiment, the processing device 16 shown in FIG. 9 used in the transfer / bending step 12 performs the transfer / bending of one outer blade, but the transfer / bending of two outer blades. It can also be set as the structure which can perform simultaneously.

すなわち、図２１は、転写・曲げ工程において用いられる加工装置１６として、２つ分の外刃の転写・曲げ加工を同時に行うことができる構成例を模式的に示す図である。この構成例では、上述の第１の金型２０に代え、２つ分の外刃を得ることのできる大きさの板状の外刃素材１１９を配置可能な板状部材１２０の表面に複数の歯１２１が形成された第１の金型１２２を用いると共に、上述の第２の金型２３に代え、外周面が外刃の内周面形状に合致した形状（側面が楕円形状又は長円形状に近似した形状）を有する２つの曲面形状部材（第２の金型２３を構成する曲面形状部材２１に相当するもの）を互いに逆方向を向くように対向させて一体化した形状を有する曲面形状部材１２３の外周面に第１の金型１２２の歯１２１に噛み合う複数の歯１２４が形成された第２の金型１２５を用いたものである。   That is, FIG. 21 is a diagram schematically illustrating a configuration example in which the two outer blades can be simultaneously transferred and bent as the processing device 16 used in the transfer and bending process. In this configuration example, instead of the first mold 20 described above, a plurality of plate-shaped outer blade materials 119 having a size capable of obtaining two outer blades can be disposed on the surface of the plate-shaped member 120 on which a plurality of plate-shaped outer blade materials 119 can be arranged. While using the 1st metal mold | die 122 in which the tooth | gear 121 was formed, it replaced with the above-mentioned 2nd metal mold | die 23, and the outer peripheral surface matched the inner peripheral surface shape of an outer blade (a side surface is elliptical shape or oval shape) Curved surface shape having a shape obtained by integrating two curved surface shape members (corresponding to the curved surface shape member 21 constituting the second mold 23) facing each other in opposite directions. A second mold 125 in which a plurality of teeth 124 that mesh with the teeth 121 of the first mold 122 is formed on the outer peripheral surface of the member 123 is used.

この構成例によれば、第１の金型１２２面に沿って板状の外刃素材１１９を配置し、この外刃素材１１９に対して第２の金型１２５により押圧力を加えつつ、第２の金型１２５をその外周面に外刃素材１１９を巻き付けながら第１の金型１２２に沿って転動させて一回転させることで２つ分の外刃の転写・曲げ加工を同時に行うことができ、転写・曲げ工程１２における作業効率を効果的に向上させることができる。なお、２つ分の外刃の転写・曲げ加工の行われた外刃素材１１９は、その適所にレーザを照射するなどして切断することで２分割するようにすればよい。   According to this configuration example, the plate-shaped outer blade material 119 is disposed along the surface of the first mold 122, and the second mold 125 applies a pressing force to the outer blade material 119 while The two molds 125 are simultaneously rolled and bent along the first mold 122 by rolling the outer mold material 119 around the outer peripheral surface of the second mold 125 and rotating it twice. The working efficiency in the transfer / bending step 12 can be effectively improved. The outer blade material 119 on which the two outer blades have been transferred and bent may be divided into two parts by cutting the outer blade material 119 by irradiating it with a laser.

この図２１に示す加工装置１６の具体的構成としては、図２２に示すように、第２の金型１２５の両側面（紙面を貫く方向の手前側及び奥行側）の中央部に支持軸体１２７、１２７（手前側の一方のみ図示）を設けると共に、第２の金型１２５の両側面側（紙面を貫く方向の手前側及び奥行側）に第２の金型１２５を１回転させることのできる形状のアーチ状ガイド部材１２８、１２８（手前側の一方のみ図示）を設置しておき、このアーチ状ガイド部材１２８、１２８に設けたスライド孔１２９、１２９（手前側の一方のみ図示）に支持軸体１２７、１２７をそれぞれ挿入した状態でアーチ状ガイド部材１２８、１２８の一端側（図示の左端側）と他端側（図示の右端側）との間をスライド孔１２９、１２９に沿って移動させるようにすればよい。   As a specific configuration of the processing apparatus 16 shown in FIG. 21, as shown in FIG. 22, a support shaft body is provided at the center of both side surfaces (the front side and the depth side in the direction passing through the paper surface) of the second mold 125. 127 and 127 (only one on the front side is shown), and the second mold 125 is rotated once on both side surfaces of the second mold 125 (front side and depth side in a direction penetrating the paper surface). An arch-shaped guide member 128, 128 (only one on the front side shown) is installed and supported by slide holes 129, 129 (only one on the front side shown) provided in the arch-shaped guide member 128, 128. It moves along the slide holes 129 and 129 between the one end side (the left end side in the figure) and the other end side (the right end side in the figure) of the arch-shaped guide members 128 and 128 with the shaft bodies 127 and 127 inserted respectively. Let me do Good.

また、図２１に示す加工装置１６の別の具体的構成として、図２３に示すように、第２の金型１２５の内部に図１２及び図１４に示す構成と同様の構成になるカム受け部１３０と図１２及び図１４に示す構成と同様の構成になるカム１３１とを設けておき、このカム１３１をカム受け部１３０において押圧力を加えた状態で第１の金型１２２の一端側から他端側に向けて摺動させるようにすることもできる。   Further, as another specific configuration of the processing device 16 shown in FIG. 21, as shown in FIG. 23, a cam receiving portion having the same configuration as that shown in FIGS. 12 and 14 inside the second mold 125. 130 and a cam 131 having the same configuration as that shown in FIGS. 12 and 14 are provided, and the cam 131 is applied from one end side of the first mold 122 with a pressing force applied to the cam receiving portion 130. It can also be made to slide toward the other end side.

（３）上記実施形態では、外刃素材２４の端部を第２の金型２３、６３に係止するための係止構造は、いずれも機械的に係止する構成のものについてしか説明していないが、例えば、外刃素材２４を構成する金属材料が磁石に吸着可能なものである場合には、第２の金型２３、６３の外周面の所定位置に磁石を埋設しておくことで係止部を構成し、この磁石に外刃素材２４の端部を吸着させることで係止させることもできる。   (3) In the above-described embodiment, the locking structure for locking the end portion of the outer blade material 24 to the second molds 23 and 63 will be described only for a structure in which both are mechanically locked. However, for example, when the metal material constituting the outer blade material 24 can be attracted to the magnet, the magnet is embedded in a predetermined position on the outer peripheral surface of the second molds 23 and 63. It can also be made to lock by constituting an engaging part and adsorbing the end of the outer blade material 24 to this magnet.

（４）上記実施形態では、図１４に示す構成の加工装置１６は、第２の金型６３の接触面積に対応して押圧力を調節するようにしたものであるが、例えば、直動アクチュエータ７５、７５を長さ調節のできない支柱に代えるなどすることにより、押圧力を調節しない構成とすることもできる。また、図１４に示す加工装置１６の押圧力を調節する構成は、図９に示す構成の加工装置１６に適用することもできる。この場合、図１４に示す構成の加工装置１６の直動アクチュエータ７５、７５、圧力センサ８６などを用いるようにすればよい。   (4) In the above embodiment, the processing device 16 having the configuration shown in FIG. 14 is configured to adjust the pressing force in accordance with the contact area of the second mold 63. It is also possible to adopt a configuration in which the pressing force is not adjusted by replacing 75 and 75 with a column whose length cannot be adjusted. Moreover, the structure which adjusts the pressing force of the processing apparatus 16 shown in FIG. 14 can also be applied to the processing apparatus 16 of the structure shown in FIG. In this case, the linear motion actuators 75 and 75, the pressure sensor 86, etc. of the processing apparatus 16 having the configuration shown in FIG. 14 may be used.

本発明の一実施形態に係る電気かみそりの曲面形状を有する外刃の加工方法を説明するための工程図である。It is process drawing for demonstrating the processing method of the outer blade which has the curved shape of the electric razor which concerns on one Embodiment of this invention. 電気かみそりの曲面形状を有する外刃を示す斜視図である。It is a perspective view which shows the outer blade which has the curved-surface shape of an electric razor. 転写・曲げ工程を実施するための加工装置の構成例を模式的に示す図である。It is a figure which shows typically the structural example of the processing apparatus for implementing a transcription | transfer / bending process. 第２の金型を構成する曲面形状部材の形状を説明するための斜視図である。It is a perspective view for demonstrating the shape of the curved-surface-shaped member which comprises a 2nd metal mold | die. 外刃素材の転写・曲げ工程を説明するための図である。It is a figure for demonstrating the transcription | transfer / bending process of an outer blade raw material. 外刃素材の研削工程を説明するための図である。It is a figure for demonstrating the grinding process of an outer blade raw material. 外刃素材の研削工程で形成された刃を示す図である。It is a figure which shows the blade formed at the grinding process of the outer blade raw material. 外刃素材の研削方法を説明するための図である。It is a figure for demonstrating the grinding method of an outer blade raw material. 図３に示す加工装置の具体的構成例を示す図である。It is a figure which shows the specific structural example of the processing apparatus shown in FIG. 外刃素材の係止構造の具体例を示す図であり、（ａ）は、第２の金型の外周面に鉤状のピンからなる係止部を形成したもの、（ｂ）は、第２の金型の外周面にスリットからなる係止部を形成したもの、（ｃ）は、第２の金型の外周面にクランプ機構からなる係止部を設けたものである。It is a figure which shows the specific example of the latching structure of an outer blade raw material, (a) formed the latching | locking part which consists of a hook-shaped pin in the outer peripheral surface of a 2nd metal mold | die, (b) FIG. 2C shows an example in which a locking part made of a slit is formed on the outer peripheral surface of the second mold, and FIG. 外刃素材の係止状態を示す図であり、（ａ）は、外刃素材の端部に形成した孔を第２の金型の外周面に形成したピンからなる係止部に嵌合させることで外刃素材の端部を係止させたもの、（ｂ）は、外刃素材の端部を第２の金型の外周面に形成したスリットからなる係止部に差し込むことで外刃素材の端部を係止させたもの、（ｃ）は、外刃素材の端部を第２の金型の外周面に設けたクランプ機構からなる係止部に挟み込むことで外刃素材の端部を係止させたものである。It is a figure which shows the latching state of an outer blade raw material, (a) fits the hole formed in the edge part of an outer blade raw material to the latching | locking part which consists of the pin formed in the outer peripheral surface of a 2nd metal mold | die. (B) is an outer cutter by inserting the end of the outer cutter material into an engaging part made of a slit formed on the outer peripheral surface of the second mold. (C) shows the end of the outer blade material by inserting the end portion of the outer blade material into the engaging portion made of a clamp mechanism provided on the outer peripheral surface of the second mold. The part is locked. 転写・曲げ工程を実施するための加工装置の別の構成例を模式的に示すものである。Another structural example of the processing apparatus for implementing a transcription | transfer / bending process is shown typically. 第２の金型を構成する曲面形状部材の形状を説明するための斜視図である。It is a perspective view for demonstrating the shape of the curved-surface-shaped member which comprises a 2nd metal mold | die. 図１２に示す加工装置の具体的構成例を示す図である。It is a figure which shows the specific structural example of the processing apparatus shown in FIG. カム及びカム受け部の構成を説明するための要部断面図である。It is principal part sectional drawing for demonstrating the structure of a cam and a cam receiving part. 図１４に示す構成の加工装置の押圧力を調整するための制御構成を説明するためのブロック図である。It is a block diagram for demonstrating the control structure for adjusting the pressing force of the processing apparatus of a structure shown in FIG. 図１４に示す構成の加工装置の動作例を説明するためのフローチャートである。It is a flowchart for demonstrating the operation example of the processing apparatus of a structure shown in FIG. 第２の金型の外周面に巻き付けられた外刃素材を第２の金型から容易に離脱させる第１の構成例を示す図で、（ａ）は、外刃素材の第２の金型への巻き付け時の構成を示す図であり、（ｂ）は、外刃素材の第２の金型からの離脱方法を説明するための図である。It is a figure which shows the 1st structural example which makes it easy to detach | leave the outer blade raw material wound around the outer peripheral surface of the 2nd metal mold | die from a 2nd metal mold | die, (a) is the 2nd metal mold | die of an outer blade raw material. It is a figure which shows the structure at the time of winding around, (b) is a figure for demonstrating the removal method of the outer blade raw material from the 2nd metal mold | die. 第２の金型の外周面に巻き付けられた外刃素材を第２の金型から容易に離脱させる第２の構成例を示す図で、（ａ）は、第２の金型の構造を説明するための図であり、（ｂ）は、外刃素材の第２の金型からの離脱方法を説明するための図である。It is a figure which shows the 2nd structural example which makes it easy to detach | leave the outer blade raw material wound around the outer peripheral surface of the 2nd metal mold | die from a 2nd metal mold | die, (a) demonstrates the structure of a 2nd metal mold | die. (B) is a figure for demonstrating the removal method from the 2nd metal mold | die of an outer blade raw material. 第２の金型の外周面に巻き付けられた外刃素材を第２の金型から容易に離脱させる第３の構成例を示す図で、（ａ）は、第２の金型の構造を説明するための図であり、（ｂ）は、外刃素材の第２の金型からの離脱方法を説明するための図である。It is a figure which shows the 3rd structural example which makes it easy to detach | leave the outer blade raw material wound around the outer peripheral surface of the 2nd metal mold | die from a 2nd metal mold | die, (a) demonstrates the structure of a 2nd metal mold | die. (B) is a figure for demonstrating the removal method from the 2nd metal mold | die of an outer blade raw material. ２つ分の外刃の転写・曲げ工程を同時に実施することができる加工装置の構成例を模式的に示す図である。It is a figure which shows typically the structural example of the processing apparatus which can implement simultaneously the transcription | transfer / bending process of two outer blades. 図２１に示す加工装置の具体的構成例を示す図である。It is a figure which shows the specific structural example of the processing apparatus shown in FIG. 図２１に示す加工装置の別の具体的構成例を示す図である。It is a figure which shows another specific structural example of the processing apparatus shown in FIG. 電気かみそりの構成を説明するための図である。It is a figure for demonstrating the structure of an electric shaver. 電気かみそりの曲面形状を有する外刃の従来の加工方法を説明するための工程図である。It is process drawing for demonstrating the conventional processing method of the outer blade which has the curved-surface shape of an electric razor. 従来の加工方法における鍛造圧印工程を説明するための図で、（ａ）は、ダイとパンチとの間に外刃素材を配置した状態を示す図、（ｂ）は、ダイとパンチとで外刃素材を押圧することで複数の凹凸がメッシュ状に形成された状態を示す図、（ｃ）は、押圧が解除されて凹凸の形成された外刃素材が外部に取り出される状態を示す図である。It is a figure for demonstrating the forge coining process in the conventional processing method, (a) is a figure which shows the state which has arrange | positioned the outer blade raw material between die | dye and a punch, (b) is an outside with a die | dye and a punch. The figure which shows the state in which several unevenness | corrugations were formed in mesh shape by pressing a blade raw material, (c) is a figure which shows the state from which the press is cancelled | released and the outer blade raw material in which the unevenness | corrugation was formed is taken out outside. is there. 従来の加工方法における研削工程を説明するための図で、（ａ）は、凹凸の形成された外刃素材を研削砥石上に送り込む状態を示す図、（ｂ）は、凹凸の底部が研削されることで外刃素材に複数の貫通孔がメッシュ状に形成された状態を示す図である。It is a figure for demonstrating the grinding process in the conventional processing method, (a) is a figure which shows the state which sends the outer blade raw material in which the unevenness | corrugation was formed on a grinding wheel, (b) is the bottom part of an unevenness | ground being ground. It is a figure which shows the state by which the several through-hole was formed in the outer blade raw material in mesh shape. 従来の加工方法における冷間曲げ工程を説明するための図で、（ａ）は、一対の下金型上に貫通孔の形成された外刃素材を配置した状態を示す図、（ｂ）は、外刃素材を下金型間に挿入することで曲面形状に成型した状態を示す図、（ｃ）は、曲面形状に成型された外刃素材を台座の下方に排出させた状態を示す図である。It is a figure for demonstrating the cold bending process in the conventional processing method, (a) is a figure which shows the state which has arrange | positioned the outer blade raw material in which the through-hole was formed on a pair of lower metal mold | die, (b) is The figure which shows the state shape | molded in the curved surface shape by inserting an outer blade raw material between lower metal mold | dies, (c) is the figure which shows the state which discharged | emitted the outer blade raw material shape | molded in the curved surface shape below the base. It is. 従来の加工方法における焼入矯正工程を説明するための図である。It is a figure for demonstrating the hardening correction process in the conventional processing method.

１１ 外刃
１２ 転写・曲げ工程（第１の工程）
１３ 焼入工程（第２の工程）
１４ 研削工程（第３の工程）
１５ 焼戻工程（第４の工程）
１６ 加工装置
１７、５７ 板状部材
１８、２２、５８、６２、１２１、１２４ 歯
２０、６０、１２２ 第１の金型
２１、６１、１２３ 曲面形状部材
２３、６３、１２５ 第２の金型
２４、１１９ 外刃素材
２６ 凹凸
３１、６８ 転動機構部
３３ 支持軸体
３４ スライド孔
３５ アーチ状ガイド部材
３６、７１ 移動機構
５０、５１、５２ 係止部
６４ カム
６６ カム受け部
１００ フィルムシート
１０３ 流体通路
１０６ 中央部材
１０７ 外側部材
１０８ 付勢部材 11 Outer blade 12 Transfer / bending process (first process)
13 Quenching process (second process)
14 Grinding process (third process)
15 Tempering process (4th process)
16 Processing device 17, 57 Plate-shaped members 18, 22, 58, 62, 121, 124 Teeth 20, 60, 122 First mold 21, 61, 123 Curved-shaped members 23, 63, 125 Second mold 24 119 Outer blade material 26 Concavities and convexities 31, 68 Rolling mechanism portion 33 Support shaft body 34 Slide hole 35 Arch-shaped guide members 36, 71 Moving mechanisms 50, 51, 52 Locking portion 64 Cam 66 Cam receiving portion 100 Film sheet 103 Fluid Passage 106 central member 107 outer member 108 biasing member

Claims (10)

髭を外刃と内刃とで挟み込むことにより切断する電気かみそりの曲面形状を有する外刃の加工方法であって、曲げ加工することで金属からなる板状の外刃素材に複数の凹凸を形成しつつ当該外刃素材を曲面形状に成型する第１の工程と、前記曲面形状に成型された外刃素材を焼き入れすることで所定の曲面形状に矯正すると共に硬度を高める第２の工程と、前記焼き入れされた曲面形状の外刃素材の内周面側の凹凸を研削することにより複数の貫通孔が設けられた刃を形成する第３の工程と、前記刃の形成された外刃素材を焼き戻すことで硬度を低くして弾力性を高める第４の工程とを備え、
前記第１の工程では、板状部材の表面に複数の歯が形成されてなる第１の金型と、曲面形状部材の外周面に前記第１の金型の歯に噛み合う複数の歯が形成されてなる第２の金型とを備え、前記板状の外刃素材を前記第１の金型面に配置し、この外刃素材に対して前記第２の金型により押圧力を加えつつ当該第２の金型をその外周面に前記外刃素材を巻き付けながら前記第１の金型に沿って転動させることを特徴とする電気かみそりの曲面形状を有する外刃の加工方法。 A method of machining an outer blade having a curved shape of an electric razor that is cut by sandwiching a ridge between the outer blade and the inner blade, and forming a plurality of irregularities on a metal plate-like outer blade material by bending. A first step of molding the outer cutter material into a curved surface shape, and a second step of correcting the predetermined curved shape by quenching the outer cutter material molded into the curved shape and increasing the hardness. A third step of forming a blade provided with a plurality of through holes by grinding irregularities on the inner peripheral surface side of the quenched curved outer blade material, and the outer blade formed with the blade Including a fourth step of tempering the material to reduce hardness and increase elasticity,
In the first step, a first mold in which a plurality of teeth are formed on the surface of the plate-shaped member, and a plurality of teeth that mesh with the teeth of the first mold are formed on the outer peripheral surface of the curved member. The plate-shaped outer blade material is disposed on the first mold surface, and a pressing force is applied to the outer blade material by the second die. A method of processing an outer cutter having a curved shape of an electric razor, wherein the second die is rolled along the first die while the outer cutter material is wound around an outer peripheral surface thereof . 前記第１の工程では、前記第２の金型をその外周面にフィルムシートを介して前記外刃素材を巻き付けながら前記第１の金型に沿って転動させることを特徴とする請求項１記載の電気かみそりの曲面形状を有する外刃の加工方法。 In the first step, according to claim, characterized in that to roll along said first mold while wrapping the outer cutter element through a film sheet the second die on its outer circumferential surface 1 The processing method of the outer blade which has the curved surface shape of the electric razor of description. 髭を外刃と内刃とで挟み込むことにより切断する電気かみそりの曲面形状を有する外刃の加工装置であって、板状部材の表面に複数の歯が形成されてなる第１の金型と、外周面が前記外刃の内周面形状に合致した形状を有する曲面形状部材の当該外周面に前記第１の金型の歯に噛み合う複数の歯が形成されてなる第２の金型と、前記第１の金型面に配置した板状の外刃素材に対して前記第２の金型により押圧力を加えつつ当該第２の金型をその外周面に前記外刃素材を巻き付けながら前記第１の金型に沿って転動させる転動機構部とを備えたことを特徴とする電気かみそりの曲面形状を有する外刃の加工装置。   A processing apparatus for an outer blade having a curved shape of an electric razor that cuts a ridge by sandwiching a scissor between the outer blade and the inner blade, and a first mold in which a plurality of teeth are formed on the surface of a plate-shaped member; A second mold in which a plurality of teeth that engage with the teeth of the first mold are formed on the outer peripheral surface of the curved surface-shaped member having an outer peripheral surface that matches the inner peripheral surface shape of the outer blade; While applying a pressing force to the plate-shaped outer cutter material arranged on the first mold surface by the second die, the outer cutter material is wound around the outer periphery of the second die. An outer blade processing apparatus having a curved shape of an electric razor, comprising: a rolling mechanism section that rolls along the first mold. 前記第２の金型は、その外周面に前記外刃素材の端部を係止する係止部を設けたものであり、前記転動機構部は、前記外刃素材の端部を前記係止部に係止させた状態で前記第２の金型を前記第１の金型に沿って転動させるものであることを特徴とする請求項３記載の電気かみそりの曲面形状を有する外刃の加工装置。 The second mold is provided with a locking portion that locks an end portion of the outer blade material on an outer peripheral surface thereof, and the rolling mechanism portion engages the end portion of the outer blade material with the engagement. The outer cutter having a curved shape of an electric razor according to claim 3 , wherein the second die is rolled along the first die in a state where the second die is engaged with a stopper. Processing equipment. 前記転動機構部は、前記第２の金型の対向する両側面にそれぞれ設けられ、外周縁における先端位置からの距離が外周縁における他の位置からの距離よりも長くなる箇所に突出する支持軸体と、前記第２の金型の対向する両側面側にそれぞれ設けられ、前記支持軸体を挿入した状態で前記第１の金型の一端側と他端側との間を摺動可能で前記第１の金型に対してアーチ状となるスライド孔の形成されたガイド部材と、前記支持軸体を前記ガイド部材のアーチ状のスライド孔に沿って移動させる移動機構とを備えたことを特徴とする請求項３又は４記載の電気かみそりの曲面形状を有する外刃の加工装置。 The rolling mechanism portion is provided on each of opposite side surfaces of the second mold, and supports projecting to a location where the distance from the tip position on the outer peripheral edge is longer than the distance from other positions on the outer peripheral edge. Provided on opposite side surfaces of the shaft body and the second mold, and can slide between one end side and the other end side of the first mold with the support shaft body inserted. And a guide member formed with an arched slide hole with respect to the first mold, and a moving mechanism for moving the support shaft along the arched slide hole of the guide member. The processing apparatus of the outer blade which has the curved shape of the electric razor of Claim 3 or 4 characterized by these. 前記第２の金型は、その内部に当該第２の金型の外周面から流体を吐出させる流体通路を設けたもので、前記第２の金型の外周面に巻き付けられた外刃素材を当該外周面から離脱させるときに前記流体通路に流体を供給するようにしたことを特徴とする請求項３乃至５の何れかに記載の電気かみそりの曲面形状を有する外刃の加工装置。 The second mold is provided with a fluid passage for discharging fluid from the outer peripheral surface of the second mold, and an outer blade material wound around the outer peripheral surface of the second mold is provided. 6. The processing apparatus for an outer blade having a curved shape of an electric razor according to claim 3 , wherein a fluid is supplied to the fluid passage when the fluid is separated from the outer peripheral surface. 前記第２の金型は、中央に配した中央部材と、この中央部材の両側にそれぞれ配した外側部材と、これらの外側部材を互いに中央部材側に付勢する付勢部材とを備えたもので、前記第２の金型の外周面に巻き付けられた外刃素材を当該外周面から離脱させるときに前記中央部材を外方に引き抜くことにより前記外側部材を前記付勢部材により互いに引き寄せるようにしたことを特徴とする請求項３乃至５の何れかに記載の電気かみそりの曲面形状を有する外刃の加工装置。 The second mold includes a central member disposed in the center, outer members disposed on both sides of the central member, and biasing members that bias these outer members toward the central member. Then, when the outer blade material wound around the outer peripheral surface of the second mold is separated from the outer peripheral surface, the outer member is pulled toward each other by the biasing member by pulling the central member outward. The processing apparatus for an outer blade having a curved shape of an electric razor according to any one of claims 3 to 5 . 前記転動機構部は、前記第１の金型面に直交する第１の方向及び前記第１の金型面に平行な第２の方向に駆動可能なカムと、前記第２の金型の内部に形成されて前記カムを摺動させるもので、前記第２の金型の外周面に対応する曲面に沿って形成されたカム受け部と、前記カムを前記第１の方向に押圧力を加えた状態で前記カム受け部に摺動させて前記第２の方向に移動させる移動機構とを備えたことを特徴とする請求項３又は４記載の電気かみそりの曲面形状を有する外刃の加工装置。 The rolling mechanism includes a cam that can be driven in a first direction orthogonal to the first mold surface and a second direction parallel to the first mold surface, and a second mold A cam receiving portion formed along a curved surface corresponding to an outer peripheral surface of the second mold, and a pressing force of the cam in the first direction. 5. The processing of the outer blade having the curved shape of the electric razor according to claim 3, further comprising a moving mechanism that slides the cam receiving portion in the added state and moves the cam receiving portion in the second direction. apparatus. 前記転動機構部は、前記外刃素材に対する前記第２の金型の外周面における接触面積が大きい曲面位置では小さい曲面位置よりも押圧力を大きくし、前記外刃素材に対する前記第２の金型の外周面における接触面積が小さい曲面位置では大きい曲面位置よりも押圧力を小さくするようにしたものであることを特徴とする請求項３乃至８の何れかに記載の電気かみそりの曲面形状を有する外刃の加工装置。 The rolling mechanism portion increases the pressing force at a curved surface position where the contact area on the outer peripheral surface of the second die with respect to the outer blade material is large as compared to a small curved surface position, and the second metal against the outer blade material. The curved shape of the electric razor according to any one of claims 3 to 8, wherein a pressing force is made smaller at a curved surface position where the contact area on the outer peripheral surface of the mold is smaller than at a large curved surface position. A processing device for an outer blade. 前記第２の金型は、外周面が前記外刃の内周面形状に合致した形状を有する２つの曲面形状部材を互いに逆方向を向くように対向させて一体化した形状を有する曲面形状部材により構成されたもので、その曲面形状部材の外周面に前記第１の金型の歯に噛み合う複数の歯が形成されたものであることを特徴とする請求項３又は４記載の電気かみそりの曲面形状を有する外刃の加工装置。
The second mold has a curved surface-shaped member having a shape obtained by integrating two curved surface-shaped members having an outer peripheral surface that matches a shape of the inner peripheral surface of the outer blade so as to face each other in opposite directions. 5. The electric shaver according to claim 3 , wherein a plurality of teeth that mesh with the teeth of the first mold are formed on an outer peripheral surface of the curved surface-shaped member. A processing device for an outer blade having a curved shape.
JP2006017473A 2006-01-26 2006-01-26 Processing method and processing device for outer cutter having curved shape of electric razor Expired - Fee Related JP5016823B2 (en)

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JPS5359566A (en) * 1976-11-05 1978-05-29 Odensha Kk Method of making matrix for outer blade of electric razor
JPS54136538A (en) * 1978-04-17 1979-10-23 Toshiba Corp Forming method
JPS5586489A (en) * 1978-12-25 1980-06-30 Hitachi Maxell Preparation of outer edge of reciprocating electric razor
JPS5867278A (en) * 1981-10-19 1983-04-21 九州日立マクセル株式会社 Production of mesh-like outer blade of electric razor
JPS58125621U (en) * 1982-02-17 1983-08-26 三田川金属工業株式会社 Flange bending machine
JPH02144089A (en) * 1988-11-25 1990-06-01 Matsushita Electric Works Ltd Manufacture of external shaving cutter for electric shaver
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