JP4151132B2 - Wristband manufacturing method - Google Patents

Wristband manufacturing method Download PDF

Info

Publication number
JP4151132B2
JP4151132B2 JP31061398A JP31061398A JP4151132B2 JP 4151132 B2 JP4151132 B2 JP 4151132B2 JP 31061398 A JP31061398 A JP 31061398A JP 31061398 A JP31061398 A JP 31061398A JP 4151132 B2 JP4151132 B2 JP 4151132B2
Authority
JP
Japan
Prior art keywords
band body
hole
band
stainless steel
connecting pin
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
Application number
JP31061398A
Other languages
Japanese (ja)
Other versions
JP2000135105A (en
Inventor
昭男 山本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seiko Epson Corp
Original Assignee
Seiko Epson Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Seiko Epson Corp filed Critical Seiko Epson Corp
Priority to JP31061398A priority Critical patent/JP4151132B2/en
Publication of JP2000135105A publication Critical patent/JP2000135105A/en
Application granted granted Critical
Publication of JP4151132B2 publication Critical patent/JP4151132B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Pressure Welding/Diffusion-Bonding (AREA)

Description

【0001】
【発明の属する技術分野】
本発明は連結ピンによって駒同士を結合する形式の腕時計用バンドの製造方法に関する。
【0002】
【従来の技術】
駒同士を結合することによってしなやかな腕時計用バンドを構成するには、通常、駒同士を結合する連結ピンとして打込みピンやローレットピンが使用され、これらの圧入部の外径を外駒に穿設した孔の内径よりも若干大径となすことによって、両者を密嵌させるように構成されていた。
【0003】
ところが、連結ピンとして打込みピンを用いたような場合には、組合わせの如何によって生じる圧入部の外径や孔の内径との間の公差の差の範囲内のバラつきにより、打込みピンの外駒に対する抜き力に大小を生じ、発生率は低いものの長期間の携帯において打込みピンが外駒から抜け出してしまうといった不都合が生じる。
【0004】
また一方、連結ピンとしてローレットピンを用いた場合には、打込みに際しての座屈変形を防止すべく硬度の大なる金属によってローレットピンを成形しなければならない関係上、転造ツールの寿命を縮めてしまったり、転造加工に伴ってローレット部の外径に公差以上のバラつきを生じさせてしまい、ローレット部の外径と孔の内径との差の許容設定公差を確保することが困難で、ローレットピンの外駒に対する抜き力に大小を生じ、発生率は低いものの長期間の携帯においてローレットピンが外駒から抜け出してしまうといった不都合が生じる。
【0005】
【発明が解決しようとする課題】
本発明はこのような問題に鑑みてなされたもので、その目的とするところは、部品相互の組合わせの如何に拘りなく、外駒と連結ピンとの強固な結合を可能にする新たな腕時計用バンドの製造方法を提供することにある。
【0006】
【課題を解決するための手段】
すなわち、本発明はこのような課題を達成するための腕時計用バンドの製造方法として、外駒に設けた孔に、この孔の内径よりも若干大径の連結ピンを圧入することによりステンレス鋼もしくはチタンにより形成された複数の駒を、同じくステンレス鋼もしくはチタンにより形成された連結ピンによりバンド体として一体的に組付け、ついで、このバンド体を、少なくともバンド体を構成する金属の再結晶温度領域まで加熱し、最後に、このバンド体をこの温度領域のもとでバンド体を構成する金属により決まる時間の間保持することにより、外駒の内壁と連結ピンの周面とを拡散接合により強固に結合させるようにしたものである。
【0007】
【発明の実施の形態】
そこで以下に本発明の実施例について説明する。
図1は、ステンレス鋼により成形した外駒と中駒とを、同じくステンレス鋼により成形した連結ピンを用いて結合一体とする腕時計バンドの製造方法について示したものである。
【0008】
平面形状がH型をなす外駒2の張出し部2bには、打込みピン4の大径部4aの径よりも内径が若干小さな貫通孔2aが穿設されていて、はじめに、外駒2の左右の張出し部2b、2bの間に中駒3を嵌め合わせた上、左右の張出し部2b、2bの外側から、小径部4bを先に向けて打込みピン4を貫通孔2bに圧入することにより、中駒3に設けた孔3aに小径部4bを挿入するようにしてバンド体1を一体的に組付ける(図1a)。
【0009】
ついで、このようにして組付け一体となしたバンド体1の本体部、つまり長さを調節する必要のない部分を、電気炉としての無酸化連続炉9の内部に収容し、その上で、バンド体1を、ステンレス鋼の再結晶温度領域である550℃乃至650℃まで加熱する(図1b)。
【0010】
そしてつぎに、この温度領域のもとで約3分間バンド体1を炉9の中に保持すると、図2に示したように、打込みピン4の大径部4aの外周面と、外駒2の貫通孔2aの内周面との間に原子の拡散が生じて、打込みピン4の大径部4aは外駒2の貫通孔2b内に一体的に拡散接合する(図1c)。
【0011】
ところで、実際に商品としてのバンド体1を構成するには、組付け一体となしたバンド体1に溶体化処理を施して良好な耐蝕性を付与させるために、1050℃乃至1150℃まで加熱する必要があるが、この温度領域まで加熱しても、打込みピン4の外周面と外駒2の貫通孔2aの内周面との間の拡散接合は、以下の実施例に見られるように支障なく行われる。
【0012】
(実施例1)
硬度がHv174のステンレス鋼よりなる外駒に貫通孔を設け、ここに、硬度がHv335で,大径部の外径に貫通孔の内径との間で0.02mmと0.04mmの径差を持たせた1.1mm径のステンレス鋼よりなる抜込みピンを1mmと2mmの深さに圧入することによって摩擦接合させた8個の検体と、圧入して1050℃乃至1150℃まで加熱し、ついでこの温度領域に一定時間保持して拡散接合させた8個の検体について、これらの抜き力を比較したところ、表1のような結果が得られた。
【0013】
【表1】

Figure 0004151132
【0014】
(実施例2)
硬度がHv320のステンレス鋼よりなる外駒に貫通孔を設け、硬度がHv335で、大径部の外径に貫通孔の内径との間で0.02mmと0.04mmの径差を持たせた1.1mm径のステンレス鋼よりなる抜込みピンを1mmと2mmの深さに圧入して摩擦結合させた8個の検体と、圧入して拡散結合させた8個の検体のそれぞれについて抜き力を比較したところ、表2のような結果が得られた。
【0015】
【表2】
Figure 0004151132
【0016】
これに対して本発明の第2の実施例は、純チタンにより成形した外駒2と中駒3とを合金チタンにより形成した打込みピン4により連接させた上、この打込みピン4を外駒2の孔2bに圧入して拡散接合によりバンド体1として一体的に構成するようにしたものである。
【0017】
この実施例は、外駒2と中駒3を打込みピン4により組付けることによって非長さ張設部分のバンド体1を構成し、ついで、このバンド体1を電気炉9内で再結晶温度領域で、しかも結晶粒が粗大化しない温度領域である850℃乃至880℃まで加熱した上、約45分間真空炉9内でこの温度に保持し、打込みピン4の外周面と外駒2の貫通孔2bの内周面との内で拡散結合させることにより、両者を一体的に結合させるようにしたものである。
【0018】
(実施例3)
単体で焼鈍した硬度がHv130の平面形状がH形の外駒に、硬度がHv322で大径部の外径に貫通孔の内径との間で0.01mm、0.02mm及び0.04mmの径差を持たせた1.1mm径の合金チタンよりなる打込みピンを1mmの深さと2mmの深さに打込んで摩擦接合させた8個の検体と、打込んだ上真空炉中で850℃乃至880℃に加熱し、さらにこの温度で45分間炉内に保持した8個の検体についてそれぞれの抜き力を比較したところ、表3に示したような結果が得られた。
【0019】
【表3】
Figure 0004151132
【0020】
(実施例4)
硬度がHv232の平面形状がH形の純チタンよりなる外駒の貫通孔に、硬度がHv322で大径部の外径に貫通孔の内径との間で0.01mm、0.02mm及び0.04mmの径差を持たせた1.1mm径の合金チタンよりなる打込みピンを圧入して摩擦接合させた8組の検体と、実施例3と同様の拡散結合をさせた8組の検体について、それぞれの打込みピンの抜き力を調べたところ、表4に示したような結果が得られた。
【0021】
【表4】
Figure 0004151132
【0022】
表3及び表4から、径差が小さい場合の摩擦接合に大きな差が現れるのは、チタンによって成形した外駒に真円の孔をあけるのが困難であることを現われており、この場合でも、拡散接合処理を施したものでは、抜き力に差が小さくなって接合の信頼性を向上させ得ることが判った。
【0023】
これに対して図3は、連結ピンとしてローレットピンを使用した場合の本発明の第3の実施例を示したものである。
【0024】
中駒13にステンレス鋼で形成したローレットピン14を挿通した上、同じくステンレス鋼により形成した外駒12の内面に穿設されたローレットピン14の両端部14aの外径よりも若干小径の袋穴12aに、ローレットピン14の両端部14aを圧入してバンド体10として組付け一体とし、ついで、このバンド体10を電気炉19内で、再結晶温度領域以上のオーステナイト処理に必要な1050℃乃至1150℃の温度領域まで加熱し、さらに、このバンド体10を炉19内で約3分間保持するようにしたものである。
【0025】
これにより、ローレットピン14の両端部外周面と、外駒12の袋穴12aの内周面の間に原子の拡散が生じて、両者は拡散接合により強固に一体的に結合する。
【0026】
(実施例5)
硬度がHv300のステンレス鋼よりなる外駒に、硬度がHv345で両端部に0.05mmと0.07mmの径差を持たせた外径が1.3mmのステンレス鋼よりなるローレットピンを1.8mmの深さに圧入した検体と、圧入した後に1150℃の加熱を施した上、3分間この温度のもとで保持した検体とについて、それぞれの抜き力を測定したところ、表5に示したような結果が得られた。
【0027】
【表5】
Figure 0004151132
【0028】
なお、以上は腕時計用バンドの非長さ調節部分の結合工程について説明したものであるが、これらのバンド体の一端に設ける長さ調節部においては、予め端部に位置する外駒の孔にヘアピン等を挿入した状態で拡散接合処理を行い、その処理を終えた後で孔からヘアピン等を抜き取って、ここにアジャスト部品としての十分なばね性を有する新たなヘアピンを挿入するなどの組み付け作業を施して、腕時計用バンドとして完成させることになる。
【0029】
【発明の効果】
以上述べたように本発明によれば、ステンレス鋼もしくはチタンにより形成した外駒の孔に、同じくステンレス鋼もしくはチタンにより形成した連結ピンを圧入して組付けたバンド体を、少なくともバンド体を構成する金属の再結晶温度領域まで加熱し、ついで、これを、バンド体を構成する金属により決まる時間の間この温度を保持するようにしたので、再結晶温度領域までの加熱と、この温度での一定時間の保持とを通じて、外駒の孔の内周面と連結ピンの外周面との間で原子の拡散による接合を生じさせ、外駒の孔と連結ピンの外径との間に、例え公差の差の範囲内のバラつきがあっても、バンド体を構成する微細な部材相互の結合を長期に安定的に保持させることによって、腕時計バンドとしての信頼性を大巾に向上させることができ、さらには、一定の結合強度を持たせつつ連結ピンの圧入深さを短くすることにより、外駒の形状上の制約を解いて腕時計バンドにさらに斬新なデザインを付与させることができる。
【0030】
しかも、連結ピンと外駒の孔の内径との差の許容設定範囲を広げることを可能となし、この許容設定範囲を確保するための部材相互の層別や取り直しを不要となして、腕時計バンドの製造コストをさらに軽減することを可能とする。
【図面の簡単な説明】
【図1】(a)乃至(c)は本発明の一実施例をなす腕時計用バンドの製造工程を示した図である。
【図2】(a)(b)は拡散接合工程と、単なる圧入工程によりそれぞれ結合された外駒と打込みピンの結合状態を拡大して示した写真である。
【図3】(a)乃至(c)は本発明の他の実施例をなす腕時計用バンドの製造工程を示した図である。
【符号の説明】
1、10 バンド体
2、12 外駒
2a 貫通孔
3、13 中駒
4 打込みピン
14 ローレットピン[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method for manufacturing a wristwatch band in which pieces are coupled by a connecting pin.
[0002]
[Prior art]
In order to construct a flexible wristwatch band by connecting pieces, a driving pin or knurled pin is usually used as a connecting pin for connecting pieces, and the outer diameter of these press-fitting parts is drilled in the outer piece. By making the diameter slightly larger than the inner diameter of the hole, the two are closely fitted.
[0003]
However, when a driving pin is used as the connecting pin, the outer piece of the driving pin is caused by variations within the tolerance difference between the outer diameter of the press-fitting portion and the inner diameter of the hole caused by the combination. However, there is a problem in that the driving pin is pulled out of the outer piece when carried for a long period of time although the rate of occurrence is low.
[0004]
On the other hand, when a knurled pin is used as the connecting pin, the knurled pin must be formed of a metal having a high hardness in order to prevent buckling deformation at the time of driving. The outer diameter of the knurled part may vary more than the tolerance due to the rolling process, and it is difficult to ensure the allowable setting tolerance of the difference between the outer diameter of the knurled part and the inner diameter of the hole. Although the pin pulling force with respect to the outer piece is large and small, the inconvenience that the knurled pin comes out of the outer piece when carried for a long period of time is low.
[0005]
[Problems to be solved by the invention]
The present invention has been made in view of such problems, and the object of the present invention is for a new wristwatch that enables a strong connection between an outer piece and a connecting pin regardless of the combination of components. It is in providing the manufacturing method of a band.
[0006]
[Means for Solving the Problems]
That is, the present invention provides a wristwatch band manufacturing method for achieving such a problem, by press-fitting a connecting pin having a diameter slightly larger than the inner diameter of the hole into the hole provided in the outer piece. A plurality of pieces formed of titanium are integrally assembled as a band body by a connecting pin also formed of stainless steel or titanium, and then this band body is at least a recrystallization temperature region of a metal constituting the band body. Finally, this band body is held for a time determined by the metal constituting the band body under this temperature region, thereby strengthening the inner wall of the outer piece and the peripheral surface of the connecting pin by diffusion bonding. It is made to combine.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Therefore, examples of the present invention will be described below.
FIG. 1 shows a method for manufacturing a wristwatch band in which an outer piece and a middle piece formed of stainless steel are joined and integrated using a connecting pin formed of stainless steel.
[0008]
A through hole 2a having a slightly smaller inner diameter than the diameter of the large-diameter portion 4a of the driving pin 4 is formed in the projecting portion 2b of the outer piece 2 having an H-shaped planar shape. The intermediate piece 3 is fitted between the overhanging portions 2b and 2b, and from the outside of the left and right overhanging portions 2b and 2b, the small diameter portion 4b is pointed first and the driving pin 4 is press-fitted into the through hole 2b. The band body 1 is integrally assembled so that the small diameter portion 4b is inserted into the hole 3a provided in the middle piece 3 (FIG. 1a).
[0009]
Next, the main body portion of the band body 1 assembled and integrated in this way, that is, the portion that does not need to be adjusted in length, is accommodated in the non-oxidation continuous furnace 9 as an electric furnace, and then, The band body 1 is heated to 550 ° C. to 650 ° C., which is a recrystallization temperature region of stainless steel (FIG. 1b).
[0010]
Next, when the band body 1 is held in the furnace 9 for about 3 minutes under this temperature region, as shown in FIG. 2, the outer peripheral surface of the large diameter portion 4a of the driving pin 4 and the outer piece 2 Diffusion of atoms occurs between the inner peripheral surface of the through-hole 2a and the large-diameter portion 4a of the driving pin 4 is diffusion-bonded integrally with the through-hole 2b of the outer piece 2 (FIG. 1c).
[0011]
By the way, in order to actually configure the band body 1 as a product, the band body 1 assembled and integrated is heated to 1050 ° C. to 1150 ° C. in order to give a solution treatment to give good corrosion resistance. Although it is necessary, even if heated to this temperature range, the diffusion bonding between the outer peripheral surface of the driving pin 4 and the inner peripheral surface of the through hole 2a of the outer piece 2 is hindered as seen in the following embodiments. Done without.
[0012]
(Example 1)
A through hole is provided in an outer piece made of stainless steel having a hardness of Hv174, where the hardness is Hv335 and the diameter difference between the outer diameter of the large diameter portion and the inner diameter of the through hole is 0.02 mm and 0.04 mm. 8 specimens friction-joined by press-fitting a drawn pin made of stainless steel with a diameter of 1.1 mm to a depth of 1 mm and 2 mm, and press-fitted and heated to 1050 ° C. to 1150 ° C., then Table 8 shows the results obtained by comparing the extraction forces of the eight specimens that were diffusion-bonded while being held in this temperature region for a certain period of time.
[0013]
[Table 1]
Figure 0004151132
[0014]
(Example 2)
A through hole was provided in an outer piece made of stainless steel having a hardness of Hv320. The hardness was Hv335, and the outer diameter of the large-diameter portion had a diameter difference of 0.02 mm and 0.04 mm between the inner diameter of the through hole. Extraction force is applied to each of 8 specimens that are friction-bonded by press-fitting a 1.1 mm diameter stainless steel extraction pin to a depth of 1 mm and 2 mm, and 8 specimens that are press-fitted and diffusion-bonded. When compared, the results shown in Table 2 were obtained.
[0015]
[Table 2]
Figure 0004151132
[0016]
On the other hand, in the second embodiment of the present invention, the outer piece 2 and the middle piece 3 formed of pure titanium are connected by a driving pin 4 formed of titanium alloy, and the driving pin 4 is connected to the outer piece 2. The band body 1 is integrally formed by press-fitting into the hole 2b.
[0017]
In this embodiment, an outer piece 2 and an inner piece 3 are assembled by a driving pin 4 to constitute a band body 1 of a non-length extending portion, and then the band body 1 is recrystallized in an electric furnace 9. The region is heated to 850 ° C. to 880 ° C., which is a temperature region in which the crystal grains do not coarsen, and is maintained at this temperature in the vacuum furnace 9 for about 45 minutes. The two are integrally coupled by diffusion coupling with the inner peripheral surface of the hole 2b.
[0018]
(Example 3)
A single piece annealed with a hardness of Hv130 in a planar shape with an H-shaped outer piece, with a hardness of Hv322 and a diameter of 0.01mm, 0.02mm and 0.04mm between the outer diameter of the large diameter part and the inner diameter of the through hole Eight specimens made by frictional joining of a 1 mm diameter and 2 mm depth driving pins made of 1.1 mm diameter titanium alloy with a difference, and 850 ° C. to When the extraction force of each of the eight specimens heated to 880 ° C. and held in the furnace for 45 minutes at this temperature was compared, the results shown in Table 3 were obtained.
[0019]
[Table 3]
Figure 0004151132
[0020]
Example 4
In the through hole of the outer piece made of pure titanium whose hardness is Hv232, the hardness is Hv322, the hardness is Hv322, 0.01mm, 0.02mm and 0.04mm between the outer diameter of the large diameter part and the inner diameter of the through hole 8 specimens that were friction-joined by press-fitting a driving pin made of a 1.1 mm diameter titanium alloy having a diameter difference of 8 and 8 specimens that were diffusion-bonded in the same manner as in Example 3, respectively. When the pulling force of the driving pin was examined, the results shown in Table 4 were obtained.
[0021]
[Table 4]
Figure 0004151132
[0022]
From Table 3 and Table 4, the large difference appears in the friction welding when the diameter difference is small, which means that it is difficult to make a perfect hole in the outer piece formed of titanium. It has been found that in the case where the diffusion bonding process is performed, the difference in the drawing force is reduced and the reliability of the bonding can be improved.
[0023]
On the other hand, FIG. 3 shows a third embodiment of the present invention in which a knurled pin is used as the connecting pin.
[0024]
A knurled pin 14 made of stainless steel is inserted into the middle piece 13 and a bag hole having a slightly smaller diameter than the outer diameter of both end portions 14a of the knurled pin 14 formed in the inner surface of the outer piece 12 also made of stainless steel. 12a, both ends 14a of the knurled pin 14 are press-fitted and integrated as a band body 10, and the band body 10 is then integrated in the electric furnace 19 to a temperature of 1050 ° C. or more necessary for austenite treatment at a recrystallization temperature region or higher. The band body 10 is heated to a temperature range of 1150 ° C., and the band body 10 is held in the furnace 19 for about 3 minutes.
[0025]
As a result, atomic diffusion occurs between the outer peripheral surfaces of both ends of the knurled pin 14 and the inner peripheral surface of the bag hole 12a of the outer piece 12, and both are firmly and integrally bonded by diffusion bonding.
[0026]
(Example 5)
An outer piece made of stainless steel with a hardness of Hv300, a knurled pin made of stainless steel with an outer diameter of 1.3 mm and a hardness difference of 0.05 mm and 0.07 mm at both ends with a hardness of Hv345 is 1.8 mm. Table 5 shows the results of measuring the extraction force of the sample pressed to a depth of 1 mm and the sample heated at 1150 ° C. after being pressed and held at this temperature for 3 minutes. Results were obtained.
[0027]
[Table 5]
Figure 0004151132
[0028]
The above description is about the joining process of the non-length adjusting portion of the wristwatch band. However, in the length adjusting portion provided at one end of these band bodies, the hairpin is inserted in the hole of the outer piece located at the end portion in advance. After performing the diffusion bonding process, insert the hairpin etc. from the hole and insert a new hairpin with sufficient springiness as an adjustment part. It will be completed as a wristwatch band.
[0029]
【The invention's effect】
As described above, according to the present invention, at least a band body is formed by assembling a connecting pin formed by stainless steel or titanium into a hole of an outer piece formed of stainless steel or titanium. The metal was heated to the recrystallization temperature region, and then this temperature was maintained for a time determined by the metal constituting the band body, so that the heating to the recrystallization temperature region and the constant temperature at this temperature were maintained. Through the retention of time, a junction is formed by diffusion of atoms between the inner peripheral surface of the outer piece hole and the outer peripheral surface of the connecting pin. For example, there is a difference in tolerance between the outer piece hole and the outer diameter of the connecting pin. Even if there is a variation within the range, the reliability of the wristwatch band can be greatly improved by stably maintaining the coupling between the minute members constituting the band body for a long period of time. News, by shortening the press-fitting depth of the connecting pin while providing a constant coupling strength, it is possible to impart further innovative design watchband by solving the constraints on the shape of the outer frame.
[0030]
In addition, it is possible to widen the allowable setting range of the difference between the connecting pin and the inner diameter of the hole of the outer piece, making it unnecessary to stratify and rework the members to ensure this allowable setting range, and to manufacture watch bands The cost can be further reduced.
[Brief description of the drawings]
FIGS. 1A to 1C are diagrams showing a manufacturing process of a wristwatch band according to an embodiment of the present invention.
FIGS. 2A and 2B are photographs showing an enlarged view of the coupling state of an outer piece and a driving pin that are coupled by a diffusion bonding process and a simple press-fitting process, respectively.
FIGS. 3A to 3C are diagrams showing a manufacturing process of a wristwatch band according to another embodiment of the present invention. FIGS.
[Explanation of symbols]
1, 10 Band body 2, 12 Outer piece 2a Through hole 3, 13 Middle piece 4 Driving pin 14 Knurled pin

Claims (4)

外駒に設けた孔に、該孔の内径よりも若干大径の連結ピンを圧入することによりステンレス鋼もしくはチタンにより形成された複数の駒を、同じくステンレス鋼もしくはチタンにより形成された上記連結ピンによりバンド体として一体的に組付け、ついで、該バンド体を、少なくとも該バンド体を構成する金属の再結晶温度領域まで加熱し、最後に、上記バンド体を該温度領域のもとで上記バンド体を構成する金属により決まる時間の間保持するようにした腕時計用バンドの製造方法であって、
ステンレス鋼よりなる上記外駒の孔に、同じくステンレス鋼よりなる上記連結ピンを圧入して複数の駒を組付けたバンド体を、少なくとも再結晶温度領域である550℃乃至650℃まで加熱し、ついで、該バンド体を上記温度領域のもとで約3分間保持するようにしたことを特徴とする腕時計用バンドの製造方法。
A plurality of pieces formed of stainless steel or titanium by press-fitting a connecting pin having a diameter slightly larger than the inner diameter of the hole into a hole provided in the outer piece, and the connecting pin formed of stainless steel or titanium. Then, the band body is heated to at least the recrystallization temperature region of the metal constituting the band body, and finally the band body is heated under the temperature region. A method for manufacturing a wristwatch band which is held for a time determined by a metal constituting the body ,
A band body in which a plurality of pieces are assembled by press-fitting the connecting pin also made of stainless steel into the hole of the outer piece made of stainless steel is heated to at least a recrystallization temperature region of 550 ° C. to 650 ° C., A method for producing a wristwatch band, characterized in that the band body is held for about 3 minutes under the above temperature range .
外駒に設けた孔に、該孔の内径よりも若干大径の連結ピンを圧入することによりステンレス鋼もしくはチタンにより形成された複数の駒を、同じくステンレス鋼もしくはチタンにより形成された上記連結ピンによりバンド体として一体的に組付け、ついで、該バンド体を、少なくとも該バンド体を構成する金属の再結晶温度領域まで加熱し、最後に、上記バンド体を該温度領域のもとで上記バンド体を構成する金属により決まる時間の間保持するようにした腕時計用バンドの製造方法であって、
ステンレス鋼よりなる上記外駒の孔に、同じくステンレス鋼よりなる上記連結ピンを圧入して複数の駒を組付けたバンド体を、再結晶温度以上である溶体化処理に必要な1050℃乃至1150℃の温度領域まで加熱し、ついで、該バンド体を上記温度領域のもとで約3分間保持するようにしたことを特徴とする腕時計用バンドの製造方法。
A plurality of pieces formed of stainless steel or titanium by press-fitting a connecting pin having a diameter slightly larger than the inner diameter of the hole into a hole provided in the outer piece, and the connecting pin formed of stainless steel or titanium. Then, the band body is heated to at least the recrystallization temperature region of the metal constituting the band body, and finally the band body is heated under the temperature region. A method for manufacturing a wristwatch band which is held for a time determined by a metal constituting the body,
A band body in which a plurality of pieces are assembled by press-fitting the connecting pin also made of stainless steel into the hole of the outer piece made of stainless steel is 1050 ° C. to 1150 ° C. necessary for the solution treatment that is higher than the recrystallization temperature. A wristwatch band manufacturing method characterized in that the band body is heated to a temperature range of approximately 3 minutes and then held for about 3 minutes under the temperature range.
外駒に設けた孔に、該孔の内径よりも若干大径の連結ピンを圧入することによりステンレス鋼もしくはチタンにより形成された複数の駒を、同じくステンレス鋼もしくはチタンにより形成された上記連結ピンによりバンド体として一体的に組付け、ついで、該バンド体を、少なくとも該バンド体を構成する金属の再結晶温度領域まで加熱し、最後に、上記バンド体を該温度領域のもとで上記バンド体を構成する金属により決まる時間の間保持するようにした腕時計用バンドの製造方法であって、
チタンよりなる上記外駒の孔に、同じくチタンよりなる連結ピンを圧入して複数の駒を組付けたバンド体を、少なくとも再結晶温度領域である850℃乃至880℃まで加熱し、ついで、該バンドを上記温度領域のもとで約45分間保持することを特徴とする腕時計用バンドの製造方法。
A plurality of pieces formed of stainless steel or titanium by press-fitting a connecting pin having a diameter slightly larger than the inner diameter of the hole into a hole provided in the outer piece, and the connecting pin formed of stainless steel or titanium. Then, the band body is heated to at least the recrystallization temperature region of the metal constituting the band body, and finally the band body is heated under the temperature region. A method for manufacturing a wristwatch band which is held for a time determined by a metal constituting the body,
A band body in which a plurality of pieces are assembled by press-fitting a connecting pin made of titanium into the hole of the outer piece made of titanium is heated to at least a recrystallization temperature region of 850 ° C. to 880 ° C., and then the band Is held for about 45 minutes under the above temperature range.
外駒に設けた孔に、該孔の内径よりも若干大径の連結ピンを圧入することによりステンレス鋼もしくはチタンにより形成された複数の駒を、同じくステンレス鋼もしくはチタンにより形成された上記連結ピンによりバンド体として一体的に組付け、ついで、該バンド体を、少なくとも該バンド体を構成する金属の再結晶温度領域まで加熱し、最後に、上記バンド体を該温度領域のもとで上記バンド体を構成する金属により決まる時間の間保持するようにした腕時計用バンドの製造方法であって、
上記外駒に設けた孔に、該孔の内径よりも0.01mm乃至0.04mm大径の連結ピンを圧入するようにしたことを特徴とする腕時計用バンドの製造方法。
A plurality of pieces formed of stainless steel or titanium by press-fitting a connecting pin having a diameter slightly larger than the inner diameter of the hole into a hole provided in the outer piece, and the connecting pin formed of stainless steel or titanium. Then, the band body is heated to at least the recrystallization temperature region of the metal constituting the band body, and finally the band body is heated under the temperature region. A method for manufacturing a wristwatch band which is held for a time determined by a metal constituting the body,
A method for producing a wristwatch band, wherein a connecting pin having a diameter of 0.01 mm to 0.04 mm larger than the inner diameter of the hole is press-fitted into the hole provided in the outer piece.
JP31061398A 1998-10-30 1998-10-30 Wristband manufacturing method Expired - Fee Related JP4151132B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP31061398A JP4151132B2 (en) 1998-10-30 1998-10-30 Wristband manufacturing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP31061398A JP4151132B2 (en) 1998-10-30 1998-10-30 Wristband manufacturing method

Publications (2)

Publication Number Publication Date
JP2000135105A JP2000135105A (en) 2000-05-16
JP4151132B2 true JP4151132B2 (en) 2008-09-17

Family

ID=18007380

Family Applications (1)

Application Number Title Priority Date Filing Date
JP31061398A Expired - Fee Related JP4151132B2 (en) 1998-10-30 1998-10-30 Wristband manufacturing method

Country Status (1)

Country Link
JP (1) JP4151132B2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003038218A (en) * 2001-07-27 2003-02-12 Citizen Watch Co Ltd Connecting pin for band and producing method for the same
JP4754122B2 (en) * 2001-09-07 2011-08-24 シチズンホールディングス株式会社 Manufacturing method for watch parts
JP2006304956A (en) * 2005-04-27 2006-11-09 Citizen Watch Co Ltd Metal band
CN103202581A (en) * 2013-03-28 2013-07-17 邓湘凌 Connecting structure of ceramic watch band
JP7157635B2 (en) * 2018-11-16 2022-10-20 シチズン時計株式会社 Band connection structure
JP7157636B2 (en) * 2018-11-19 2022-10-20 シチズン時計株式会社 Band connection structure and band manufacturing method
JP7351619B2 (en) * 2019-01-29 2023-09-27 シチズン時計株式会社 connecting band

Also Published As

Publication number Publication date
JP2000135105A (en) 2000-05-16

Similar Documents

Publication Publication Date Title
JP2593088B2 (en) Eyeglass frame and manufacturing method thereof
JP4151132B2 (en) Wristband manufacturing method
JP2001157661A (en) Connection structure of operating wire for endoscope
JP4176636B2 (en) Watch exterior parts and manufacturing method thereof
KR20010022936A (en) Wrist watch band adjust pin, method of manufacturing the pin, and wrist watch band connection structure
JP2003159333A (en) Core material for guide wire for medical treatment and guide wire for medical treatment
JP2006304956A (en) Metal band
US5655300A (en) Method of making stampato jewelry
JP2599090B2 (en) Suture needle, suture needle with thread, and method of manufacturing the same
JP3058276U (en) Watch band
JP4548811B2 (en) Attaching structure of the pin for jewelry
JPH10185192A (en) Ceramic glow plug and manufacture thereof
JP2003190291A (en) Manufacturing method for medical guide wire core material and medical guide wire
JPH105995A (en) Joining method of ni-ti alloy
JP3190443B2 (en) Glasses material
US20010023319A1 (en) Guide wire used for medical treatment
JP4754122B2 (en) Manufacturing method for watch parts
JPH06189814A (en) Manufacture of middle buckling device for wrist watch band
JPH07178539A (en) Joinable shape memory member
JP2022021277A (en) Guide wire and manufacturing method for the same
JPS6363522A (en) Hot working method for reducing diameter of pipe
JPS6118919A (en) Manufacture of flexible temple
JP2000162554A (en) Method for brazing metallic material for spectacles and frame for spectacles obtained by this brazing method
JP2707434B2 (en) Accessories parts
JPH03211701A (en) Slide contact and its manufacture

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20050908

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20070801

RD03 Notification of appointment of power of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7423

Effective date: 20071227

RD04 Notification of resignation of power of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7424

Effective date: 20071221

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20080219

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20080410

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20080610

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20080623

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110711

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110711

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120711

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120711

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130711

Year of fee payment: 5

LAPS Cancellation because of no payment of annual fees