JPH0588158B2 - - Google Patents
Info
- Publication number
- JPH0588158B2 JPH0588158B2 JP2357686A JP2357686A JPH0588158B2 JP H0588158 B2 JPH0588158 B2 JP H0588158B2 JP 2357686 A JP2357686 A JP 2357686A JP 2357686 A JP2357686 A JP 2357686A JP H0588158 B2 JPH0588158 B2 JP H0588158B2
- Authority
- JP
- Japan
- Prior art keywords
- corrosion
- cutter
- outer blade
- blade
- resistant coating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000005260 corrosion Methods 0.000 claims description 40
- 230000007797 corrosion Effects 0.000 claims description 31
- 239000011248 coating agent Substances 0.000 claims description 18
- 238000000576 coating method Methods 0.000 claims description 18
- 239000010953 base metal Substances 0.000 claims description 17
- 238000005520 cutting process Methods 0.000 claims description 13
- 238000004070 electrodeposition Methods 0.000 description 24
- 238000005323 electroforming Methods 0.000 description 16
- 238000007747 plating Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 6
- 101100334009 Caenorhabditis elegans rib-2 gene Proteins 0.000 description 5
- 239000011159 matrix material Substances 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical group [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 206010040844 Skin exfoliation Diseases 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 229910052763 palladium Inorganic materials 0.000 description 3
- 229910052703 rhodium Inorganic materials 0.000 description 3
- 239000010948 rhodium Substances 0.000 description 3
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 3
- JPJALAQPGMAKDF-UHFFFAOYSA-N selenium dioxide Chemical compound O=[Se]=O JPJALAQPGMAKDF-UHFFFAOYSA-N 0.000 description 3
- 238000004544 sputter deposition Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- WDHWFGNRFMPTQS-UHFFFAOYSA-N cobalt tin Chemical compound [Co].[Sn] WDHWFGNRFMPTQS-UHFFFAOYSA-N 0.000 description 2
- 238000005238 degreasing Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 229940082569 selenite Drugs 0.000 description 2
- MCAHWIHFGHIESP-UHFFFAOYSA-L selenite(2-) Chemical compound [O-][Se]([O-])=O MCAHWIHFGHIESP-UHFFFAOYSA-L 0.000 description 2
- 229910000531 Co alloy Inorganic materials 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
Landscapes
- Dry Shavers And Clippers (AREA)
Description
【発明の詳細な説明】
［産業上の利用分野］
この発明は、電気かみそりの網目状外刃に係
り、腐食がとくに刃先部に起こるのを可及的に抑
制すべく改善したものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a mesh outer cutter of an electric shaver, which is improved to suppress corrosion particularly at the cutting edge as much as possible.
［従来の技術］
従来、この種の網目状外刃いおいてこの全面も
しくは内刃との摺動面側を外刃素地金属より耐食
性の良い他の金属または合金などで被覆して腐食
防止を図ることはよく知られている（文献不詳）。[Prior art] Conventionally, this type of mesh outer cutter was coated with another metal or alloy that had better corrosion resistance than the base metal of the outer cutter on the entire surface or the sliding surface side with the inner cutter to prevent corrosion. It is well known that this is the case (documents unknown).
［発明が解決しようとする問題点］
しかし、上記のようにして防食処理された外刃
も、例えば、防食メツキ層にひずみがあり、局部
腐食または孔食を起こすことが多々ある。この場
合、孔食を起こす部分、つまり孔食発生箇所が刃
先部分であると、たちまち切れ味が低下し、外刃
寿命を極端に短くするという難点があつた。[Problems to be Solved by the Invention] However, even in the case of the outer cutter which has been subjected to the anti-corrosion treatment as described above, for example, the anti-corrosion plating layer is distorted, and local corrosion or pitting corrosion often occurs. In this case, if the pitting corrosion occurs at the cutting edge, the sharpness immediately deteriorates and the life of the outer blade is extremely shortened.
この発明はかかる問題点を解決するためになさ
れたもので髭の切断に直接関与する外刃の少なく
とも刃先部を不動態域とし、髭切断に関与しない
外刃の内刃との摺動面側のその他の箇所を腐食域
とする手段をとることにより、その腐食域を優先
的にかつ集中的に腐食させて刃先部の腐食をでき
るだけ遅延せしめ、もつて外刃寿命を長くするこ
とを目的とする。 This invention was made in order to solve this problem.At least the cutting edge of the outer blade that is directly involved in cutting the beard is made into a passive region, and the sliding surface side of the outer blade that is not involved in cutting the beard with the inner blade is made into a passive region. By taking measures to make other parts of the blade a corroded area, the purpose is to corrode the corroded area preferentially and intensively to delay the corrosion of the cutting edge as much as possible, thereby extending the life of the outer blade. do.
［問題点を解決するための手段］
この発明は、上記目的を達成するために、次の
ような手段をとつた。すなわち、この発明は、外
刃素地金属よりも耐食性に優れる耐食被膜１２を
全面、もしくは内刃との摺動面側のみに形成する
網目状外刃を前提とし、そのうえで、外刃の内刃
との摺動面側の刃先部４を除く他の箇所に、前記
耐食被膜１２によつて覆われていない外刃素地金
属の露出部５を形成してなる。[Means for Solving the Problems] In order to achieve the above object, the present invention takes the following measures. That is, the present invention is based on a mesh-like outer cutter in which the corrosion-resistant coating 12, which has better corrosion resistance than the base metal of the outer cutter, is formed on the entire surface or only on the sliding surface side with the inner cutter. An exposed portion 5 of the base metal of the outer blade which is not covered with the corrosion-resistant coating 12 is formed at a portion other than the cutting edge portion 4 on the sliding surface side of the blade.
上記外刃素地金属の露出部５を形成する手段と
しては、例えば、外刃を電鋳法によつて製造する
さい、第２図ｄに示すように外刃の内刃との摺動
面側のカウンタシンク３の開口縁に、小さい捨て
突部１１を形成しておいて、この外刃の全面に耐
食被膜１２をメツキあるいはスパツタ等で形成し
たのち前記捨て突部１１を、外刃の内刃との摺動
面側に内刃もしくはその他の部材を摺接する等す
ることにより簡単に欠落、欠損させ、この欠落に
より当該箇所に外刃素地金属の露出部５を形成す
ればよい。 As a means for forming the exposed portion 5 of the outer blade base metal, for example, when manufacturing the outer blade by electroforming, as shown in FIG. A small protrusion 11 is formed on the opening edge of the counter sink 3, and a corrosion-resistant coating 12 is formed on the entire surface of the outer cutter by plating or sputtering. The inner cutter or other member may be brought into sliding contact with the sliding surface side of the blade to easily cause the cutout or chipping, and the exposed portion 5 of the base metal of the outer cutter may be formed at the location due to the chipping.
また、外刃素地金属の露出部５の他の形成方法
としては、外刃を上記と同様に電鋳法によつて製
造する工程途上で外刃のカウンタシンク３のみ
に、耐食被膜１２を剥がれ易くする酸化被膜１３
を形成しておいて、外刃の全面に耐食被膜１２を
形成したのち第５図に示すように前記カウンタシ
ンク３部分のみの耐食被膜１２を剥離して当該箇
所に外刃素地金属の露出部５を形成するようにし
てもよい。 In addition, as another method for forming the exposed portion 5 of the outer blade base metal, the corrosion-resistant coating 12 is peeled off only on the countersink 3 of the outer blade during the process of manufacturing the outer blade by electroforming in the same manner as described above. Oxide film 13 that facilitates
After forming a corrosion-resistant coating 12 on the entire surface of the outer blade, as shown in FIG. 5 may be formed.
［作用］
しかるときは、外刃の内刃との摺動面側の素地
金属の露出部５が、刃先部４よりも優先的にかつ
集中的に腐食促進することになる。[Operation] In such a case, the exposed portion 5 of the base metal on the sliding surface side of the outer cutter and the inner cutter will accelerate corrosion more preferentially and intensively than the cutting edge portion 4.
［発明の効果］
この発明の網目状外刃は、外刃の内刃との摺動
面側であつて刃先部４以外の箇所に、外刃素地金
属の露出部５を形成してなるものであるから、刃
先部４の腐食を回避することができ、切れ味をで
きるだけ長く確保することができて外刃寿命を長
くするという利点がある。[Effects of the Invention] The mesh-like outer cutter of the present invention is formed by forming an exposed portion 5 of the outer cutter base metal at a location other than the cutting edge portion 4 on the sliding surface side of the outer cutter with the inner cutter. Therefore, corrosion of the cutting edge portion 4 can be avoided, and sharpness can be maintained for as long as possible, which has the advantage of extending the life of the outer blade.
［実施例 １］
第１図はこの発明に係る網目状外刃の第１実施
例を示しており、この外刃は多数の毛導入孔１と
これを囲む断面皿形のリブ２を有し、リブ２の内
刃との摺動面側にはカウンタシンク３が形成さ
れ、リブ２の内刃との摺動面と毛導入孔２の内周
面との交わり部には刃先部４が形成されている。
そしてリブ２の内刃との摺動面とカウンタシンク
３との境界部に、外刃素地金属の露出部５を形成
している。[Example 1] Fig. 1 shows a first example of a mesh-like outer cutter according to the present invention, and this outer cutter has a large number of hair introduction holes 1 and a rib 2 having a dish-shaped cross section surrounding them. A counter sink 3 is formed on the sliding surface of the rib 2 with the inner cutter, and a cutting edge portion 4 is formed at the intersection of the sliding surface of the rib 2 with the inner cutter and the inner peripheral surface of the hair introduction hole 2. It is formed.
An exposed portion 5 of the outer blade base metal is formed at the boundary between the sliding surface of the rib 2 with the inner blade and the countersink 3.
かかる外刃を電鋳法で製造する場合について説
明する。 A case where such an outer cutter is manufactured by electroforming will be explained.
まず、第２図ａに示すように、導電性の電鋳母
型６の表面に、外刃の毛導入孔１に相当するパタ
ーンの電気絶縁膜７を形成する。この電気絶縁膜
７は、周知のように電鋳母型６の表面にホトレジ
ストを塗布あるいは貼付け、これをマスクを使っ
て光で部分的に露光し現像することによつて形成
される。次いで、電気絶縁膜７が形成された電鋳
母型６を電着槽（図示せず）に浸漬させて１次電
着を行つて、第２図ｂに示すごとく母型６の電気
絶縁膜７によつて覆われていない表面、すなわち
その母型６の導電表面に、断面山形の１次電着層
８を形成する。この１次電着層８は、従来の電鋳
外刃よりも１次電着量（電着厚さ）を少なくして
その山形の頂部付近が電気絶縁膜７の表面より高
く突出し、その山形のすそ部が電気絶縁膜７の表
面より低くなるように形成することによりその山
形の傾斜面と電気絶縁膜７との間に小さい凹溝９
を形成する。 First, as shown in FIG. 2a, an electrically insulating film 7 having a pattern corresponding to the hair introduction holes 1 of the outer blade is formed on the surface of a conductive electroforming mold 6. This electrical insulating film 7 is formed, as is well known, by coating or pasting a photoresist on the surface of the electroforming mold 6, and partially exposing it to light using a mask and developing it. Next, the electroforming matrix 6 on which the electrically insulating film 7 has been formed is immersed in an electrodeposition tank (not shown) to perform primary electrodeposition, thereby forming the electrically insulating film on the matrix 6 as shown in FIG. 2b. A primary electrodeposition layer 8 having a chevron-shaped cross section is formed on the surface not covered by the electrode 7, that is, on the conductive surface of the matrix 6. This primary electrodeposition layer 8 has a smaller amount of primary electrodeposition (electrodeposition thickness) than the conventional electroformed outer blade, and the vicinity of the top of the mountain shape protrudes higher than the surface of the electrical insulating film 7. By forming the base so that it is lower than the surface of the electrical insulating film 7, a small groove 9 is formed between the mountain-shaped inclined surface and the electrical insulating film 7.
form.
次いで、上記母型６を水酸化ナトリウム等の水
溶液中で＋電解して１次電着層８の表面に剥離処
理を行つたのち、ニツケル、またはニツケルとコ
バルトの合金などの２次電着を行つて第２図ｃに
示すごとく１次電着層８の表面上に外刃のリブ２
となる２次電着層１０を形成する。この２次電着
により、上記凹溝９に、小さい捨て突部１１が形
成される。 Next, the matrix 6 is electrolyzed in an aqueous solution such as sodium hydroxide to perform a peeling treatment on the surface of the primary electrodeposition layer 8, and then a secondary electrodeposition of nickel or an alloy of nickel and cobalt is applied. Then, as shown in FIG.
A secondary electrodeposited layer 10 is formed. By this secondary electrodeposition, a small sacrificial protrusion 11 is formed in the groove 9.
最後に、母型６を電着槽から引き上げて２次電
着層１０を１次電着層８の剥離処理面から剥離す
れば、第２図ｄに示すごとく毛導入孔１と、カウ
ンタシンク３を有するリブ２とを有するととも
に、カウンタシンク３の開口縁に小さい突部１１
を有する網目状外刃が得られる。 Finally, when the matrix 6 is pulled up from the electrodeposition bath and the secondary electrodeposition layer 10 is peeled off from the peeled surface of the primary electrodeposition layer 8, the hair introduction hole 1 and the countersink are formed as shown in FIG. 2d. 3, and a small protrusion 11 on the opening edge of the counter sink 3.
A mesh-like outer cutter having the following properties is obtained.
そして、この電鋳外刃は、第３図に示すように
その素地金属であるニツケル等よりも耐食性に優
れるロジウム、パラジウム、あるいはスズーコバ
ルト等のメツキでその全面に耐食被膜１２を形成
する。しかるのち、この外刃を電気かみそりに組
み込み、内刃を外刃の内刃との摺動面側に対し摺
接させると、上記小さい捨て突部１１がその内刃
との摺接により容易に掻き落とされ、第１図に示
すようにその欠落箇所に外刃素地金属の露出部５
が形成されるのである。 As shown in FIG. 3, this electroformed outer cutter is coated with a corrosion-resistant coating 12 made of rhodium, palladium, tin-cobalt, or the like, which has better corrosion resistance than the base metal such as nickel. After that, when this outer cutter is assembled into an electric shaver and the inner cutter is brought into sliding contact with the sliding surface of the outer cutter and the inner cutter, the small sacrificial protrusion 11 can be easily removed by sliding contact with the inner cutter. As shown in FIG.
is formed.
なお、上記捨て突部１１を欠損、欠落させる他
の方法としては，外刃を電気かみそりに組み込む
前の段階で、外刃の内刃との摺動面側を適宜部材
で摺接して捨て突部１１を落とし、露出部５を形
成することもできる。 In addition, as another method for chipping or missing the above-mentioned sacrificial protrusion 11, before the outer cutter is assembled into the electric shaver, the sliding surface side of the outer cutter and the inner cutter is brought into sliding contact with an appropriate member and the sacrificial protrusion 11 is removed. It is also possible to drop the portion 11 and form the exposed portion 5.
この実施例によれば、外刃の電鋳にさいし１次
電着量を従来の電着量よりも僅かに少なくして１
次電着し、電鋳後１次電着により形成された小さ
い捨て突部１１を欠落、欠損するという簡単な手
段で、外刃素地金属の露出部５が容易に形成され
る。また、１次電着量を少なくした分だけ、リブ
２の実質の厚みを増すことができて機械的強度に
優れる電鋳外刃を得ることもできる。 According to this embodiment, when electroforming the outer blade, the amount of primary electrodeposition is slightly smaller than the amount of conventional electrodeposition.
The exposed portion 5 of the outer blade base metal can be easily formed by a simple method of performing secondary electrodeposition and then chipping or chipping the small sacrificial protrusion 11 formed by the primary electrodeposition after electroforming. Furthermore, the actual thickness of the ribs 2 can be increased by the amount of the primary electrodeposition, and an electroformed outer cutter with excellent mechanical strength can be obtained.
［実施例 ２］
つぎに、外刃の内刃との摺動面側のみに耐食被
膜を形成する第２実施例を挙げる。この場合は、
上記第１実施例の場合と同様に電鋳法で毛導入孔
１と、カウンタシンク３を有するリブ２とを有す
るとともに、カウンタシンク３の開口縁に小さい
突部１１を有する網目状外刃を得たのち、この電
鋳外刃は、耐食性に優れたロジウム、パラジウ
ム、スズーコバルト、もしくは窒化チタン等の窒
化物の耐食被膜１２をスパツタ等により、その内
刃との摺動面側のみに形成する。しかるのち第１
実施例の場合と同様に内刃の摺接手段等により捨
て突部１１を欠落させれば、外刃素地金属の露出
部５が外刃の内刃との摺動面側に形成される。[Example 2] Next, a second example will be described in which a corrosion-resistant coating is formed only on the sliding surface side of the outer cutter and the inner cutter. in this case,
As in the case of the first embodiment, a mesh-like outer cutter is formed by electroforming to have a hair introduction hole 1 and a rib 2 having a countersink 3, as well as a small protrusion 11 at the opening edge of the countersink 3. After obtaining the electroformed outer cutter, a corrosion-resistant coating 12 made of a nitride such as rhodium, palladium, tin-cobalt, or titanium nitride, which has excellent corrosion resistance, is formed by sputtering or the like only on the sliding surface side with the inner cutter. . After that, the first
If the sacrificial protrusion 11 is removed by the sliding contact means of the inner cutter or the like as in the case of the embodiment, an exposed portion 5 of the outer cutter base metal is formed on the sliding surface side of the outer cutter and the inner cutter.
もつとも、スパツタにより外刃全面に耐食被膜
１２を形成することもできる。外刃の表面側にも
耐食被膜１２を形成すれば、その表面側も腐食し
にくくなり、肌触りも良好となることは言うまで
もない。 However, the corrosion-resistant coating 12 can also be formed on the entire surface of the outer blade by sputtering. It goes without saying that if the corrosion-resistant coating 12 is also formed on the surface side of the outer cutter, that surface side will also be less likely to corrode and will have a good texture.
［実施例 ３］
第４図は網目状外刃のカウンタシンク３に、外
刃素地金属の露出部５を形成する第３実施例を示
している。この実施例においても外刃は電鋳法に
よつて製造し、電鋳後、耐食被膜を形成するので
あるが、第１実施例のものと異なる点は、１次電
着層８の表面に施される剥離剤として、２次電着
層１０の剥離にさいし２次電着層１０側に移行
し、耐食被膜の形成加工時にはその耐食被膜のメ
ツキを剥がれやすくするという、亜セレン酸を使
用する点にある。[Embodiment 3] FIG. 4 shows a third embodiment in which an exposed portion 5 of the base metal of the outer blade is formed on the countersink 3 of the mesh-shaped outer blade. In this embodiment as well, the outer blade is manufactured by the electroforming method, and a corrosion-resistant coating is formed after electroforming. As the release agent applied, selenite is used, which migrates to the secondary electrodeposited layer 10 side when the secondary electrodeposition layer 10 is peeled off, and makes it easier to peel off the plating of the corrosion-resistant coating during the formation process of the corrosion-resistant coating. It is in the point of doing.
すなわち、第５図ａに示すように電鋳母型６の
表面への電気絶縁膜７の形成、および１次電着工
程までは、第１実施例の場合と同様に行う。１次
電着後は、第５図ｂに示すように１次電着層８の
表面に剥離処理を施すのであるが、この剥離剤と
して亜セレン酸を使用する。この処理により１次
電着層８の表面に形成されたセレンの酸化被膜１
３は、第５図ｄに示すように２次電着層１０を１
次電着層８から剥離するときに２次電着層１０の
カウンタシンク３側に転移付着する。 That is, as shown in FIG. 5a, the formation of the electrical insulating film 7 on the surface of the electroforming mold 6 and the primary electrodeposition process are performed in the same manner as in the first embodiment. After the primary electrodeposition, as shown in FIG. 5b, the surface of the primary electrodeposition layer 8 is subjected to a peeling treatment, and selenite is used as the peeling agent. A selenium oxide film 1 formed on the surface of the primary electrodeposition layer 8 by this treatment.
3, as shown in FIG. 5d, the secondary electrodeposited layer 10 is
When it is peeled off from the secondary electrodeposition layer 8, it transfers and adheres to the countersink 3 side of the secondary electrodeposition layer 10.
ついで、電鋳外刃を防食メツキするに先立ち、
メツキの密着性を良くするために上記電鋳外刃に
超音波脱脂、あるいは電解脱脂等の前処理を施
す。この前処理が行われても前記セレンの酸化被
膜１３は外刃のカウンタシンク３から剥がれない
で該カウンタシンク３に付着したまま残る。かく
して、ロジウム、パラジウム等の防食メッキを外
刃の全面に施して耐食被膜１２を形成する。この
とき外刃のセレンの酸化被膜１３が形成されたカ
ウンタシンク３では耐食被膜１２との密着性が悪
いため、防食メツキ後カウンタシンク３部分のみ
の耐食被膜１２はすぐに剥がれて、第４図に示す
ように外刃素地金属の露出部１９がカウンタシン
ク３に形成されることになる。 Next, before applying anti-corrosion plating to the electroformed outer blade,
In order to improve the adhesion of plating, the electroformed outer blade is subjected to pretreatment such as ultrasonic degreasing or electrolytic degreasing. Even if this pretreatment is performed, the selenium oxide film 13 is not peeled off from the countersink 3 of the outer cutter and remains attached to the countersink 3. In this way, anti-corrosion plating of rhodium, palladium or the like is applied to the entire surface of the outer cutter to form a corrosion-resistant coating 12. At this time, since the countersink 3 on which the selenium oxide film 13 of the outer blade was formed had poor adhesion to the corrosion-resistant film 12, the corrosion-resistant film 12 only on the countersink 3 part peeled off immediately after anti-corrosion plating, as shown in FIG. As shown in FIG. 3, an exposed portion 19 of the outer blade base metal is formed on the countersink 3.
因に、上記１次電着層８の表面に施される剥離
剤としては、一般に水酸化ナトリウム等が用いら
れるが、水酸化ナトリウムの酸化被膜は上記防食
メツキ前に行われる前処理により簡単に剥がれる
ため、防食メツキとの密着性が低下せず、防食メ
ツキを目的通り容易に剥がすことができないので
ある。 Incidentally, sodium hydroxide or the like is generally used as a release agent applied to the surface of the primary electrodeposited layer 8, but the oxide film of sodium hydroxide can be easily removed by pre-treatment performed before the anti-corrosion plating. Because it peels off, the adhesion to the anti-corrosion plating does not deteriorate, and the anti-corrosion plating cannot be easily removed as intended.
この実施例においても外刃の電鋳工程、防食メ
ツキ工程に特別な工程を加えることなく、外刃の
カウンタシンク３に外刃素地金属の露出部５を簡
単に形成することができる。 In this embodiment as well, the exposed portion 5 of the base metal of the outer blade can be easily formed on the countersink 3 of the outer blade without adding any special steps to the electroforming process and anti-corrosion plating process of the outer blade.
第１図は本発明に係る電気かみそりの網目状の
外刃の第１実施例を示す一部断面図、第２図ａ，
ｂ，ｃ，ｄはその外刃の電鋳法による製造工程
図、第３図は電鋳後の外刃に防食メツキを施した
状態を示す断面図である。第４図は本発明の第３
実施例を示す外刃の一部断面図、第５図ａ，ｂ，
ｃ，ｄはその外刃の電鋳法による製造工程図であ
る。
１……毛導入孔、２……リブ、３……カウンタ
シンク、４……刃先部、５……外刃素地金属の露
出部、11……捨て突部、12……耐食被膜。
FIG. 1 is a partial cross-sectional view showing a first embodiment of the mesh-like outer blade of an electric shaver according to the present invention; FIG.
b, c, and d are manufacturing process diagrams of the outer cutter by electroforming, and FIG. 3 is a cross-sectional view showing the outer cutter after electroforming with anticorrosion plating applied. Figure 4 shows the third embodiment of the present invention.
Partial cross-sectional view of the outer cutter showing the embodiment, FIGS. 5a, b,
c and d are manufacturing process diagrams using the electroforming method for the outer cutter. DESCRIPTION OF SYMBOLS 1... Hair introduction hole, 2... Rib, 3... Counter sink, 4... Cutting edge portion, 5... Exposed portion of outer blade base metal, 11... Disposable protrusion, 12... Corrosion resistant coating.
Claims (1)
２とを有してなる電気かみそりの網目状外刃にお
いて、外刃の少なくとも内刃との摺動面側に耐食
被膜１２を、刃先部４以外の箇所に耐食被膜１２
で覆われていない外刃素地金属の露出部５を設け
るように形成してあることを特徴とする電気かみ
そりの網目状外刃。1. In a mesh-like outer blade of an electric shaver having a large number of hair introduction holes 1 and ribs 2 surrounding the hair introduction holes 1, a corrosion-resistant coating 12 is provided on at least the sliding surface side of the outer blade with the inner blade, Corrosion-resistant coating 12 on parts other than the cutting edge 4
A mesh-like outer blade for an electric shaver, characterized in that it is formed so as to provide an exposed portion 5 of an outer blade base metal that is not covered with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2357686A JPS62181083A (en) | 1986-02-05 | 1986-02-05 | Reticulated outer blade of electric razor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2357686A JPS62181083A (en) | 1986-02-05 | 1986-02-05 | Reticulated outer blade of electric razor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62181083A JPS62181083A (en) | 1987-08-08 |
| JPH0588158B2 true JPH0588158B2 (en) | 1993-12-21 |
Family
ID=12114374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2357686A Granted JPS62181083A (en) | 1986-02-05 | 1986-02-05 | Reticulated outer blade of electric razor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62181083A (en) |
-
1986
- 1986-02-05 JP JP2357686A patent/JPS62181083A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62181083A (en) | 1987-08-08 |
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