JPH0532495Y2 - - Google Patents
Info
- Publication number
- JPH0532495Y2 JPH0532495Y2 JP17023088U JP17023088U JPH0532495Y2 JP H0532495 Y2 JPH0532495 Y2 JP H0532495Y2 JP 17023088 U JP17023088 U JP 17023088U JP 17023088 U JP17023088 U JP 17023088U JP H0532495 Y2 JPH0532495 Y2 JP H0532495Y2
- Authority
- JP
- Japan
- Prior art keywords
- fastening member
- curved
- reversing
- comb
- shape memory
- 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 - Lifetime
Links
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims description 12
- 230000009466 transformation Effects 0.000 claims description 7
- 229910045601 alloy Inorganic materials 0.000 claims description 5
- 239000000956 alloy Substances 0.000 claims description 5
- KHYBPSFKEHXSLX-UHFFFAOYSA-N iminotitanium Chemical compound [Ti]=N KHYBPSFKEHXSLX-UHFFFAOYSA-N 0.000 claims description 3
- 229910001000 nickel titanium Inorganic materials 0.000 claims description 3
- 238000004080 punching Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 description 8
- 239000002184 metal Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000010935 stainless steel Substances 0.000 description 6
- 229910001220 stainless steel Inorganic materials 0.000 description 6
- 229910001566 austenite Inorganic materials 0.000 description 5
- 230000002441 reversible effect Effects 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005336 cracking Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000003446 memory effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910017773 Cu-Zn-Al Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
Landscapes
- Clamps And Clips (AREA)
Description
〔産業上の利用分野〕
本考案は、例えばかつらベース内面に取り付け
て、脱毛部周辺の頭髪などを係止するのに用いる
止着部材に関するものである。
〔従来の技術〕
かつらを頭部に装着する場合、一般に、かつら
ベースの内周縁部に沿つて縫糸、接着剤等により
かつら固定用の止着部材を取り付け、この止着部
材を介して脱毛部周辺の頭髪を挟持するようにす
れば、かつらを頭部に確固に装着でき且つその着
脱も容易である。
このような止着部材として、代表的には本出願
人により開示された特公昭５−161785号に記載の
止着部材が知られている。
この種の止着部材は、バネ用ステンレス鋼材で
形成された反転性能を有する湾曲反転部材の一方
の脚片に櫛歯状の多数の突片を形成連設し、これ
らの突片の各自由端が他方の脚片を超えるように
延出させることにより、上記湾曲反転部材の反転
動作に連動して、櫛歯状突片が例えば他方の脚片
上に形成されたクツシヨン材と係脱し、それらの
間に介在された頭髪を挟着するようになつてい
る。上記湾曲反転部材を形成する場合、一般に板
状のステンレス鋼材をコ状またはＵ状に打ち抜い
て、その各自由端を内側に収束するようにして弓
状の湾曲反転性能を付与するようにしている。
〔考案が解決しようとする問題点〕
ところで、この種の止着部材を用いてかつらの
着脱を行うには、その都度必ず湾曲反転部材の反
転動作を必要とし、これを反転させるには、湾曲
反転部材の両端を支えてそのほぼ中央部を手指で
上または下から押圧しなければならない。
しかし、湾曲反転部材は、もともと強制力をも
つて湾曲形成されているため、特に脚片の中央部
近傍に大きな応力歪みが存在しており、このよう
な反転動作の繰り返しによつてステンレス鋼材の
金属疲労が生じて、通常約103回程度の反転動作
により湾曲反転部材に亀裂や割れを生じたり、櫛
歯が折損することにより、止着部材が使用不全と
なつていた。
また、湾曲反転部材に手指にて曲げ応力を加え
る場合、しばしば誤つて該反転部材に無理な力を
加え、その結果、バネ用ステンレス鋼材の弾性限
界を超えてこれを変形し、元の形状に戻らなくな
つたりすることがあつた。また、櫛歯も同様で、
櫛歯が塑性変形を生じて浮いてしまい、脚片に当
接しなくなつたりして頭髪を充分挟着し得なくな
るという問題もあつた。
本考案は上記問題に鑑みて案出されたものであ
つて、例えばかつら使用者が繰り返し湾曲反転部
材の反転動作を行つても容易に破損したり、変形
して元の形状に戻らなくなつたりすること無く、
長期間使用し得る止着部材を提供することを目的
とする。
〔問題点を解決するための手段〕
上記目的を達成するため、本考案では、一対の
脚片を有し該一対の脚片が同一方向へ凹状又は凸
状に湾曲して反転可能とした湾曲反転部材と、基
端が上記湾曲反転部材を構成する一方の脚片に間
隔をあけて形成連設され先端が他方の脚片に掛か
るように突出している複数の櫛歯状突片とから成
り、各突片が湾曲反転部材の反転に伴つて倒伏し
た際、被挟持物を挟持するようにした止着部材に
おいて、少なくとも湾曲反転部材を構成する一対
の脚片を、40℃以下の変態温度を有する形状記憶
合金により形成したことを特徴とする。
〔作用〕
この考案によれば、止着部材の少なくとも湾曲
反転部材が、好ましくは、櫛歯状突片を含む止着
部材の全体が、40℃以下の変態温度を有する形状
記憶合金で形成されていることから、常温で又は
かつら装着時には超弾性作用を発揮し、繰り返し
反転動作を行つても、力学的依存性による金属疲
労を生ずることがなく、反転部材又は櫛歯状突片
もしくはその双方が変形したり、亀裂を生じたり
することが防止され得る。
〔実施例〕
以下、図面に示した実施例に基づいて本考案を
詳細に説明する。
第１図によれば、本考案に係る止着部材１は、
反転性能が付与された湾曲反転部材２とこの湾曲
反転部材２の長辺部を形成する一方の脚片２ａに
間隔を置いて櫛歯状に形成連設された多数の櫛歯
状突片３から基本的に構成されている。
第２図を参照すると、湾曲反転部材２は、一方
の脚片２ａを形成する長片から長手方向ほぼ直角
に延出する多数の櫛歯状突片３を有する基材と、
他方の脚片２ｂを形成する基材の二つの部材で成
つており、これら二つの基材の両自由端はやや拡
開された略コ字状を成して、互いに内方へたわめ
た状態で重合され、鳩目４ａ，４ｂ，４ｃにより
鋲着固定されている。これにより相対向する脚片
２ａ及び２ｂを同一方向に弓形状に湾曲させて反
転性能が付与されている。
櫛歯状突片３は、例えば上記湾曲反転部材２の
一方の脚片２ａを基端として、先端が他方の脚片
２ｂに掛かり、その上面に達するか、又はこれを
超えて延出しており、その先端部近傍が下方へ向
けて屈曲されている。なお、これらの櫛歯状突片
３は図示のように湾曲反転部材２と打ち抜き加工
等により一体的に形成されることもでき、或いは
突片３の基端部を一方の脚片２ａの上面または背
面に溶着し、その先端部が他方の脚片２ｂの上面
に達するか、これを超えて延出するように形成し
てもよい（図示せず）。
さらに本実施例では、上記湾曲反転部材２の他
方の脚片２ｂには、櫛歯状突片３が倒伏した際に
これらの突片３と脚片２ｂとの間で摩擦係数が一
層増大し得るように耐油性のゴムパイプ５が被着
されている。
ここで、上記湾曲反転部材２を構成する一対の
脚片２ａ，２ｂは約40℃以下、通常約10℃〜30℃
の変態温度（Af点、即ちオーステナイト変態終
了温度）を有する形状記憶合金により形成されて
いる。本実施例ではこの湾曲反転部材２と櫛歯状
突片３を含む止着部材１の全体が該形状記憶合金
により形成されている。
本考案に適用される形状記憶合金は記憶熱処理
によつて一旦一定の形状を記憶すると、これを変
形しても適当に加熱するだけで記憶された形状に
復元する合金であり、その種類は特に制限される
ものではなく、Cu−Zn−Al等の銅系合金や、例
えば「古河NT合金」（商品名）として古河電気
工業株式会社から市販されているNi−Ti合金な
どが好適に使用され得る。
ここで、本考案者等は、形状記憶合金がオース
テナイト相において上記のような形状記憶効果以
外に以下のような種々の性質を発揮する点に着目
して、これを止着部材に適用したものである。
先ず、形状記憶合金は変態温度以上、即ちオー
ステナイト相では大きな応力が加えられて生じた
歪みが、除荷されることにより完全に元の形状に
回復され得る超弾性的性質を有する点である。
一般に、金属は弾性歪みが特に小さく、従来、
止着部材に用いられていたバネ用ステンレス鋼に
おいてはせいぜい0.2〜0.5％位であつて。これを
超えて止着部材を撓めようとする力が加わると破
断してしまう。また破断に至らない程度の応力で
あつても、除荷されたときに歪みが塑性変形とし
て残つてしまい、反転部材が変形すると充分な反
転力が生じなくなつてしまつたり、櫛歯状突片が
変形すると、反転部材を反転させても毛髪を挟持
できなくなつたりして止着部材として使用できな
くなることがあつた。
これに対し、例えばNi−Ti合金の弾性歪みは
約６％と桁違いに大きいことから、これを反転部
材に用いることにより、止着部材に無理な力が加
わつた場合でも、従来以上の耐久力を発揮し、容
易に破断することが無い。
さらに、オーステナイト相においては結晶の結
び付きが強く、金属疲労に対する耐久性が高い。
したがつて、従来のバネ用ステンレス鋼を用いた
止着部材にあつては、反転動作が繰り返されるこ
とにより、その際の応力が弾性限界内のものであ
つても約103回程度で粒界割れを生じていたのに
対し、形状記憶合金で形成した止着部材では、例
えば２％の弾性歪みを加えても105の繰り返し使
用が可能であり、また、0.5％の歪み利用では106
回以上にも及ぶ反転動作を行つても、金属疲労に
よる粒界割れは起こらないことを、種々実験の結
果見出した。
また、オーステナイト相においては、一般に腐
食を生じにくい。これは、結晶方向が揃つたマル
テンサイト相にあつては、結晶の粒界付近におい
て応力が集中した場合、この付近で腐食割れが生
[Industrial Application Field] The present invention relates to a fastening member that is attached to, for example, the inner surface of a wig base and is used to fasten hair around a hair removal area. [Prior Art] When a wig is attached to the head, a fastening member for fixing the wig is generally attached along the inner peripheral edge of the wig base with sewing thread, adhesive, etc., and the hair removal area is attached via this fastening member. By pinching the surrounding hair, the wig can be securely attached to the head and can be easily put on and taken off. As such a fastening member, the fastening member disclosed in Japanese Patent Publication No. 5-161785 disclosed by the present applicant is typically known. This type of fastening member has a curved reversing member made of stainless steel material for springs and having reversing performance, and has a number of comb-like protrusions formed and connected to one leg of the curved reversing member. By extending the end beyond the other leg piece, the comb tooth-like protruding piece engages and disengages from, for example, a cushion material formed on the other leg piece in conjunction with the reversing operation of the curved reversing member, and It is designed to pinch the hair interposed between them. When forming the above-mentioned curve reversal member, generally a plate-shaped stainless steel material is punched out in a U-shape or a U shape, and each free end thereof is converged inward to provide bow-like curve reversal performance. . [Problems to be solved by the invention] By the way, in order to put on and take off a wig using this type of fastening member, it is necessary to reverse the curved reversing member each time. It is necessary to support both ends of the reversing member and press approximately the center thereof from above or below with your fingers. However, since the curved reversal member is originally formed into a curved shape with forced force, there is a large stress strain especially near the center of the leg piece, and repeating such reversing action causes the stainless steel material to deteriorate. Metal fatigue occurs, and the curved reversing member usually cracks or cracks after approximately 10 3 reversing operations, and the comb teeth break, making the fastening member unusable. In addition, when applying bending stress to a curved reversible member with fingers, it is often the case that an excessive force is applied to the reversible member by mistake, and as a result, it deforms beyond the elastic limit of the stainless steel material for the spring and returns to its original shape. There were times when I couldn't go back. Also, the comb teeth are the same,
There was also a problem in that the comb teeth were plastically deformed and floated, making them no longer in contact with the leg pieces, making it impossible to adequately clamp the hair. The present invention was devised in view of the above-mentioned problems. For example, even if the wig user repeatedly performs the reversing operation of the curved reversing member, the wig may easily break or deform and become unable to return to its original shape. without doing anything,
The object is to provide a fastening member that can be used for a long period of time. [Means for Solving the Problems] In order to achieve the above object, the present invention provides a curved structure having a pair of legs, the pair of legs being curved concavely or convexly in the same direction so as to be reversible. It consists of an inversion member and a plurality of comb-like protrusions whose base ends are formed and connected at intervals to one of the leg pieces constituting the curved inversion member, and whose tips protrude so as to hang on the other leg piece. , in the fastening member that clamps the object when each protruding piece collapses as the curved reversing member is reversed, at least the pair of leg pieces constituting the curved reversing member is heated to a transformation temperature of 40°C or less. It is characterized by being formed from a shape memory alloy having the following characteristics. [Function] According to this invention, at least the curve reversal member of the fastening member, preferably the entire fastening member including the comb-like protrusions, is formed of a shape memory alloy having a transformation temperature of 40°C or less. Because of this, it exhibits superelastic action at room temperature or when worn as a wig, and does not cause metal fatigue due to mechanical dependence even if the reversal operation is repeated, and the reversal member, the comb-like protrusions, or both can be prevented from deforming or cracking. [Example] Hereinafter, the present invention will be explained in detail based on the example shown in the drawings. According to FIG. 1, the fastening member 1 according to the present invention is
A curved reversing member 2 provided with reversing performance and a large number of comb-like protrusions 3 formed in a comb-like shape at intervals on one leg 2a forming the long side of this curved reversing member 2. It basically consists of. Referring to FIG. 2, the curved reversing member 2 includes a base material having a large number of comb-like protrusions 3 extending substantially perpendicularly in the longitudinal direction from a long piece forming one leg piece 2a;
The other leg piece 2b is made up of two base materials, and both free ends of these two base materials form a slightly expanded U-shape and bend inward toward each other. The eyelets 4a, 4b, and 4c are fixed by riveting. As a result, the opposite leg pieces 2a and 2b are curved in the same direction in an arch shape, thereby imparting reversal performance. For example, the comb tooth-like protruding piece 3 has one leg piece 2a of the curved reversing member 2 as its base end, and its tip hooks onto the other leg piece 2b, reaching the upper surface of the other leg piece 2b, or extending beyond this. , the vicinity of its tip is bent downward. Note that these comb-like protruding pieces 3 can be formed integrally with the curved reversing member 2 by punching or the like as shown in the figure, or the proximal end of the protruding piece 3 can be attached to the upper surface of one of the leg pieces 2a. Alternatively, it may be welded to the back surface and its tip may reach or extend beyond the upper surface of the other leg piece 2b (not shown). Furthermore, in this embodiment, the other leg piece 2b of the curve reversing member 2 is provided with a friction coefficient that further increases between the comb-like protrusion piece 3 and the leg piece 2b when the comb-like protrusion piece 3 is collapsed. An oil-resistant rubber pipe 5 is attached so as to obtain the desired effect. Here, the pair of leg pieces 2a, 2b constituting the above-mentioned curved reversing member 2 is heated at a temperature of about 40°C or less, usually about 10°C to 30°C.
It is made of a shape memory alloy having a transformation temperature (Af point, that is, the austenite transformation end temperature). In this embodiment, the entire fastening member 1 including the curved reversing member 2 and the comb-teeth shaped protrusions 3 is made of the shape memory alloy. The shape memory alloy used in the present invention is an alloy that once memorizes a certain shape through memory heat treatment, and can be restored to the memorized shape by just heating it appropriately even if it is deformed. Although not limited to this, copper-based alloys such as Cu-Zn-Al, and Ni-Ti alloys commercially available from Furukawa Electric Co., Ltd. as "Furukawa NT Alloy" (trade name), for example, are preferably used. obtain. Here, the present inventors have focused on the fact that shape memory alloys exhibit the following various properties in addition to the shape memory effect described above in the austenite phase, and have applied this to fastening members. It is. First, shape memory alloys have superelastic properties that allow them to completely recover to their original shape by unloading the strain that occurs when a large stress is applied at temperatures above the transformation temperature, that is, in the austenite phase. In general, metals have particularly small elastic strains, and conventionally,
In stainless steel for springs used for fastening members, it is about 0.2 to 0.5% at most. If a force exceeding this amount is applied to bend the fastening member, it will break. Furthermore, even if the stress does not lead to fracture, the strain will remain as plastic deformation when the load is removed, and if the reversing member deforms, sufficient reversing force will not be generated, or a comb-like protrusion may occur. When the piece is deformed, it may become impossible to hold hair even when the reversing member is reversed, making it impossible to use it as a fixing member. On the other hand, the elastic strain of Ni-Ti alloy, for example, is about 6%, which is an order of magnitude larger, so by using this for the reversing member, even if excessive force is applied to the fastening member, it will be more durable than before. It exerts strength and does not break easily. Furthermore, the austenite phase has strong crystal bonds and high durability against metal fatigue.
Therefore, in the case of conventional fastening members using stainless steel for springs, due to repeated reversing operations, even if the stress at that time is within the elastic limit, particles will break down after about 103 times. In contrast, fastening members made of shape memory alloys can be used repeatedly for 10 5 times even when 2% elastic strain is applied, and when 0.5% strain is used, 10 6
As a result of various experiments, we have found that intergranular cracking due to metal fatigue does not occur even if the reversal operation is repeated more than once. Furthermore, in the austenite phase, corrosion is generally less likely to occur. This is because in the martensitic phase where the crystal orientation is aligned, if stress is concentrated near the grain boundaries of the crystals, corrosion cracks will occur in this area.
以上述べたように本考案の止着部材によれば、
止着部材の少なくとも湾曲反転部材が、さらに好
ましくは、櫛歯状突片を含む止着部材全体が40℃
以下の変態温度を有する形状記憶合金で形成され
ている。
したがつて、この止着部材は形状記憶効果によ
り温度依存性による反転動作を行い、常温又はか
つら着用時に超弾性的効果を発揮し得るから、か
つらの裏面に止着部材を取り付けて使用者が繰り
返し止着部材の反転動作を行つても、力学的依存
性による金属疲労を生じることなく、従つて容易
に破損したり、変形して元の形状に戻らなくなる
ことが無い。また耐食性に優れていることから長
期間劣化することなく使用し得る優れた止着部材
を提供することができる。
As described above, according to the fastening member of the present invention,
At least the curved reversal member of the fastening member, more preferably the entire fastening member including the comb-like protrusions, is heated to 40°C.
It is made of a shape memory alloy with a transformation temperature of: Therefore, this fastening member performs a temperature-dependent reversal action due to the shape memory effect, and can exhibit a superelastic effect at room temperature or when the wig is worn. Even if the fastening member is repeatedly reversed, metal fatigue due to mechanical dependence does not occur, and therefore, the fastening member does not easily break or deform and cannot return to its original shape. Furthermore, since it has excellent corrosion resistance, it is possible to provide an excellent fastening member that can be used for a long period of time without deteriorating.
第１図は本考案に係る止着部材の一実施例を示
す斜視図、第２図は本考案に係る止着部材の分解
平面図である。
１……止着部材、２……湾曲反転部材、２ａ…
…一方の脚片、２ｂ……他方の脚片、３……櫛歯
状突片、５……ゴムパイプ。
FIG. 1 is a perspective view showing an embodiment of the fastening member according to the present invention, and FIG. 2 is an exploded plan view of the fastening member according to the present invention. 1...Fixing member, 2...Curved reversal member, 2a...
...one leg piece, 2b...the other leg piece, 3...comb tooth-shaped piece, 5...rubber pipe.
Claims (1)
へ凹状又は凸状に湾曲して反転可能とした湾曲
反転部材と、基端が上記湾曲反転部材を構成す
る一方の脚片に間隔をあけて形成連設され先端
が他方の脚片に掛かるように突出している複数
の櫛歯状突片とから成り、各突片が湾曲反転部
材の反転に伴つて倒伏した際、被挟持物を挟持
するようにした止着部材において、 上記湾曲反転部材を構成する一対の脚片が40
℃以下の変態温度を有する形状記憶合金により
形成されていることを特徴とする止着部材。 (2) 前記形状記憶合金がNi−Ti合金であること
を特徴とする、請求項第１項に記載の止着部
材。 (3) 前記櫛歯状突片が打ち抜き加工等にて湾曲反
転部材と一体に形成され、該湾曲反転部材及び
櫛歯状突片の全体が形状記憶合金にて形成され
ていることを特徴とする、請求項第１項に記載
の止着部材。[Claims for Utility Model Registration] (1) A curved reversing member having a pair of legs, the pair of legs being curved concavely or convexly in the same direction so as to be able to be reversed; It consists of a plurality of comb-like protrusions that are formed and connected at intervals on one of the leg pieces constituting the reversing member, and whose tips protrude so as to hang on the other leg piece. In the fastening member that clamps the object when it falls down due to reversal, the pair of legs constituting the curved reversal member has a length of 40 mm.
A fastening member characterized in that it is formed of a shape memory alloy having a transformation temperature of 0.degree. C. or less. (2) The fastening member according to claim 1, wherein the shape memory alloy is a Ni-Ti alloy. (3) The comb tooth-like protrusion piece is formed integrally with the curve reversing member by punching or the like, and the curve reversing member and the comb tooth-like protrusion piece are entirely formed of a shape memory alloy. The fastening member according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17023088U JPH0532495Y2 (en) | 1988-12-29 | 1988-12-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17023088U JPH0532495Y2 (en) | 1988-12-29 | 1988-12-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0290620U JPH0290620U (en) | 1990-07-18 |
| JPH0532495Y2 true JPH0532495Y2 (en) | 1993-08-19 |
Family
ID=31460993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17023088U Expired - Lifetime JPH0532495Y2 (en) | 1988-12-29 | 1988-12-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0532495Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2515068Y2 (en) * | 1992-09-11 | 1996-10-23 | 唯作 岩淵 | Wig stopper |
-
1988
- 1988-12-29 JP JP17023088U patent/JPH0532495Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0290620U (en) | 1990-07-18 |
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