JP2617178B2 - Clock dial - Google Patents
Clock dialInfo
- Publication number
- JP2617178B2 JP2617178B2 JP61246943A JP24694386A JP2617178B2 JP 2617178 B2 JP2617178 B2 JP 2617178B2 JP 61246943 A JP61246943 A JP 61246943A JP 24694386 A JP24694386 A JP 24694386A JP 2617178 B2 JP2617178 B2 JP 2617178B2
- Authority
- JP
- Japan
- Prior art keywords
- dial
- sapphire
- thickness
- metal substrate
- plate
- 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
Landscapes
- Physical Vapour Deposition (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、サファイヤまたはセラミックスを素材とし
た時計用文字板に関するものである。Description: TECHNICAL FIELD The present invention relates to a timepiece dial made of sapphire or ceramics.
従来の技術としては第５図に示す文字板の部分断面
図、第６図に示す第５図の文字板を時計側に組込んだ部
分断面図のものがある。貴石を素材とする文字板は外周
リング10aを有する金属基板10の裏面に文字板足17を溶
接し、該金属基板10の表面に接着剤９を介して貴石表板
８を固着していた。また貴石以外のセラミックス、サフ
ァイヤ、超硬等の硬質材を表板の素材とする文字板も同
様であった。As a prior art, there is a partial sectional view of the dial shown in FIG. 5 and a partial sectional view of the dial shown in FIG. The dial made of precious stone has a dial foot 17 welded to the back of a metal substrate 10 having an outer peripheral ring 10a, and a precious stone top plate 8 is fixed to the surface of the metal substrate 10 via an adhesive 9. The same applies to dials using hard materials other than precious stones, such as ceramics, sapphire, and super hard, as the material of the front plate.
このような従来の文字板では、第５図及び第６図に示
す通り、文字板の衝撃強度等の機能性を満足させるため
金属基板10に外周リング10aが成形されていることから
通常文字板と比較して、文字板外径が外周リング巾ｉ×
２だけ大きくなる。また時計側13を設計する際に、文字
板受段巾ｋの値は外周リング巾ｉの値だけ大きくなり、
その結果、時計側13の縁巾ｊが通常文字板を用いた時計
側より外周リング巾ｉの値だけ縁太になる。In such a conventional dial, as shown in FIGS. 5 and 6, the outer ring 10a is formed on the metal substrate 10 in order to satisfy the functions such as the impact strength of the dial. The outer diameter of the dial is equal to the outer ring width i ×
It increases by two. In designing the watch side 13, the value of the dial receiving step width k is increased by the value of the outer ring width i,
As a result, the edge width j of the clock side 13 becomes wider than the clock side using the normal dial by the value of the outer peripheral ring width i.
その上、金属基板10の厚みｇは外周リング10aの機械
加工上の制約から300μｍ以上が必要となっている。更
に、貴石表板８の厚みｆも衝撃性の観点から400μｍ以
上となっており、文字板総厚ｈが700μｍ以上になり、3
00μｍ以下の薄型文字板の実用化は困難である。In addition, the thickness g of the metal substrate 10 needs to be 300 μm or more due to restrictions on machining of the outer peripheral ring 10a. Further, the thickness f of the precious stone surface plate 8 is 400 μm or more from the viewpoint of impact properties, and the total thickness h of the dial becomes 700 μm or more.
It is difficult to commercialize a thin dial having a thickness of 00 μm or less.
本発明は、上記欠点をなくし、サファイヤまたはセラ
ミックスの硬質材の薄板を表板の素材とし、薄型で時計
側の細縁化に悪影響を及ぼさない時計用文字板を提供す
ることを目的とする。SUMMARY OF THE INVENTION An object of the present invention is to provide a timepiece dial that is thin and does not adversely affect the thinning of the timepiece side, using a thin plate of hard material such as sapphire or ceramics as a material of the front plate.
本発明は上記の目的を達成するため、気相メッキを施
したサファイヤまたはセラミックスからなる硬質材の表
板と、裏面に足を立設した金属基板と接着固定する文字
板において、サファイヤまたはセラミックスの表板の厚
みの範囲を50μｍから200μｍ、裏面に足が立設された
金属基板の厚みの範囲を50μｍから100μｍとして接着
剤を介してそれぞれ組合せ、総厚を110μｍから310μｍ
とする。In order to achieve the above object, the present invention provides a hard plate made of sapphire or ceramics subjected to vapor-phase plating, and a dial plate adhered and fixed to a metal substrate having legs set up on the back surface. The range of the thickness of the front plate is from 50 μm to 200 μm, and the range of the thickness of the metal substrate with the legs standing on the back is 50 μm to 100 μm, and each is combined via an adhesive, and the total thickness is 110 μm to 310 μm.
And
以下図面に基づいて本発明の詳細を説明する。第１図
は本発明の一実施例であるサファイヤ文字板の部分断面
図であり、１はサファイヤ表板、２は接着剤、３は金属
基板、４は文字板足、15は気相メッキをそれぞれ示す。
先ず、サファイヤ文字板の製造工程を工程順に説明す
る。Hereinafter, the present invention will be described in detail with reference to the drawings. FIG. 1 is a partial sectional view of a sapphire dial according to one embodiment of the present invention, wherein 1 is a sapphire top plate, 2 is an adhesive, 3 is a metal substrate, 4 is a dial foot, and 15 is a vapor phase plating. Shown respectively.
First, the steps of manufacturing a sapphire dial will be described in the order of steps.
（１） 所定の形状に成形したサファイヤ表板１の下面
に文字板の美感を与えるためにイオンプレーテング等に
より各種カラーで気相メッキ15の処理をする。(1) In order to give the dial a beautiful appearance on the lower surface of the sapphire front plate 1 formed into a predetermined shape, the vapor phase plating 15 is processed in various colors by ion plating or the like.
（２） 金属基板３はサファイヤ表板１の形状にプレス
成形した後、裏面に文字板足４を溶接しニッケルメッキ
等の湿式メッキ処理をする。(2) The metal substrate 3 is press-formed into the shape of the sapphire front plate 1, and then the dial foot 4 is welded to the back surface and subjected to wet plating such as nickel plating.
（３） 工程（２）の金属基板３の上面に接着剤２（ゴ
ム系接着剤）を10〜20μｍの厚みで均一に塗布し、その
上面に工程（１）のサファイヤ表板１の気相メッキ15が
処理されている面を合わせて圧着し、常温で１時間放置
する。この結果、サファイヤ表板１と金属基板３は接着
剤２を介して強固に接合される。(3) An adhesive 2 (rubber-based adhesive) is uniformly applied to the upper surface of the metal substrate 3 in the step (2) with a thickness of 10 to 20 μm, and the vapor phase of the sapphire top plate 1 in the step (1) is applied on the upper surface The surfaces on which the plating 15 has been treated are combined and pressed, and left at room temperature for 1 hour. As a result, the sapphire top plate 1 and the metal substrate 3 are firmly joined via the adhesive 2.
以上説明した方法で各種厚みのサファイヤ文字板を製
造し、時計の衝撃試験法であるハンマー衝撃試験機を用
いてサファイヤ表板（１）の厚みａと衝撃強度との関係
（サファイヤ表板の割れ等）を実験確認した。下記に実
験方法を記述する。The sapphire dials of various thicknesses are manufactured by the method described above, and the relationship between the thickness a of the sapphire top plate (1) and the impact strength (the cracking of the sapphire top plate) is measured using a hammer impact tester which is an impact test method for a timepiece. Etc.) were confirmed experimentally. The experimental method is described below.
上記の厚み範囲でそれぞれ部品を組合せサファイヤ文
字板を製造した。また第３図の図表はサファイヤ文字板
のハンマー衝撃試験結果及び製造したサファイヤ文字板
の種類等をあらわしている。 Sapphire dials were manufactured by combining parts in the above thickness range. FIG. 3 shows the results of a hammer impact test of the sapphire dial and the types of the manufactured sapphire dial.
尚、評価基準でハンマー高サ50cm以上を合格とした理
由は、50cmのハンマー高サでハンマー衝撃テストを行な
って問題発生しなかった製品は、市場においても殆どク
レーム発生はない。このことより50cm以上を合格とし
た。また金属基板３の厚みを50μｍとした理由は、金属
基板３の裏面に足を溶接又はロー付け等で固着できる最
低厚が50μｍであるからである。また各厚みのサファイ
ヤ文字板の試験枚数は50枚である。In addition, the reason that the hammer height of 50 cm or more was passed in the evaluation standard is that products that did not cause any problem by performing a hammer impact test with a hammer height of 50 cm hardly have a complaint in the market. From this, 50 cm or more was regarded as passed. The reason why the thickness of the metal substrate 3 is set to 50 μm is that the minimum thickness at which the foot can be fixed to the back surface of the metal substrate 3 by welding or brazing is 50 μm. The test number of sapphire dials of each thickness is 50.
（２） ハンマー衝撃試験 文字板サンプルを時計側に組込んで完成時計として30
cm〜120cmのハンマー高さでの衝撃強度を試験した。(2) Hammer impact test 30
The impact strength at hammer heights of cm to 120 cm was tested.
尚、第３図の図表中の△は、ハンマー衝撃によりサフ
ァイヤ表板１の割れが発生した最低値、○は最高値、◎
は平均値である。In the table of FIG. 3, △ indicates the lowest value at which cracking of the sapphire face plate 1 occurred due to hammer impact, ○ indicates the highest value, ◎
Is the average value.
（３） 試験結果 第３図のサファイヤ文字板のハンマー衝撃試験結果の
図表１に示すデーターが得られ、サファイヤ表板１の厚
みが250〜350μｍの範囲は低い衝撃によりサファイヤ表
板１の割れが発生し不合格となり、厚みが50〜200μｍ
及び400μｍ以上では低い衝撃によるサファイヤ表板１
の割れが発生はなく合格となることが明らかとなった。
これらの結果を再確認する目的で文字板のタワミ量を測
定した結果、サファイヤ表板１の厚みａが200μｍから5
0μｍになるとタワミ量は増大し、上下からの圧力に耐
え割れにくくなることが判明した。又400μｍ以上の厚
みではタワミ量は少いがサファイヤ表板１の強度が増す
ことから、上下からの圧力に耐え割れにくくなることも
わかった。(3) Test results The data shown in Table 1 of the hammer impact test results of the sapphire dial of FIG. 3 are obtained. When the thickness of the sapphire top plate 1 is in the range of 250 to 350 μm, the sapphire top plate 1 is cracked by a low impact. Generated and rejected, thickness is 50-200μm
And sapphire top plate 1 due to low impact above 400μm
It was clear that there was no cracking and the specimen passed.
As a result of measuring the amount of deflection of the dial for the purpose of reconfirming these results, the thickness a of the sapphire front plate 1 was reduced from 200 μm to 5 μm.
At 0 μm, it was found that the amount of deflection increased, and it became difficult to withstand cracks from above and below. When the thickness is 400 μm or more, the amount of deflection is small, but the strength of the sapphire top plate 1 is increased.
以上の実験結果から本発明によるサファイヤ文字板は
下記の厚み構成で製造された。From the above experimental results, the sapphire dial according to the present invention was manufactured with the following thickness configuration.
第２図は本発明によるサファイヤ文字板を時計側に組
込んだ部分断面図を示す。５は時計側、5aは文字板受段
部、６はパッキン、７は風防ガラス、ｄは縁巾、ｅは文
字板受段巾をそれぞれ示す。金属基板３に外周リングが
無いことから、文字板受段巾ｅも小さくなり縁巾ｄは細
縁になり、細縁化が可能となった。又サファイヤ表板１
と金属基板３が薄くなり、文字板厚みｃは110〜310μｍ
が可能となった。 FIG. 2 is a partial cross-sectional view in which the sapphire dial according to the present invention is assembled on the clock side. Reference numeral 5 denotes a watch side, 5a denotes a dial receiving portion, 6 denotes packing, 7 denotes a windshield, d denotes an edge width, and e denotes a dial receiving step width. Since there is no outer ring on the metal substrate 3, the dial receiving step width e becomes smaller, the edge width d becomes narrower, and thinning is possible. Sapphire top plate 1
And the metal substrate 3 becomes thinner, and the dial thickness c is 110 to 310 μm.
Became possible.
次に上記実施例と同様に、各種厚みのセラミックス文
字板を製造し、ハンマー衝撃試験機を用いて、セラミッ
クス表板の厚みと衝撃強度との関係（セラミックス表板
の割れ等）を実験確認した結果が第４図のセラミックス
文字板のハンマー衝撃試験結果の図表に示されている。
サファイヤ文字板の衝撃挙動と同じ結果が得られ、110
〜310μｍ厚のセラミックス文字板も可能となった。こ
れらのことにより、時計側も従来の貴石文字板を使用し
た側よりも薄型化が可能となった。Next, in the same manner as in the above example, ceramic dials of various thicknesses were manufactured, and the relationship between the thickness of the ceramic front plate and the impact strength (crack of the ceramic front plate, etc.) was experimentally confirmed using a hammer impact tester. The results are shown in the table of the results of the hammer impact test on the ceramic dial in FIG.
The same result as the impact behavior of the sapphire dial was obtained.
Ceramic dials with a thickness of up to 310 μm have also become possible. For these reasons, the watch side can be made thinner than the side using the conventional precious stone dial.
以上説明したように、本発明によれば、気相メッキを
施したサファイヤまたはセラミックスからなる表板の厚
みを50μｍから200μｍの薄板としたこと、時計機械へ
の取付足を立設した金属基板の厚みを50μｍから100μ
ｍとしたこと、この金属基板に接着剤を介して表板を接
着固定し時計用文字板としたことにより、時計の通常携
帯（通常使用）においてサファイヤまたはセラミックス
からなる表板の割れ等の発生がなく、従来では得られな
かった、通常文字板としての機能を十分満足させたもの
を提供することができる。また、金属基板の外周にリン
グが必要ないこと、時計用文字板の総厚が110μｍから3
10μｍとなることとより、時計側の細縁化が可能になる
と共に薄型化も可能となり、時計側の細縁化及び薄型化
に悪影響を及ぼさない時計用文字板を提供することがで
きるようになった。また、表板を薄くしたことによって
表板の透明感が高まり、美観のために設けた各種カラー
の気相メッキの色彩が鮮明に見えるようになって一層文
字板の美観も向上し、更に文字板に立体感が現れるよう
になり高級感をかもし出す効果が現れた。As described above, according to the present invention, the thickness of the top plate made of sapphire or ceramics subjected to vapor phase plating is a thin plate of 50 μm to 200 μm, 50μm to 100μ thickness
The surface plate is bonded and fixed to the metal substrate via an adhesive to form a timepiece dial, which can cause cracking of the surface plate made of sapphire or ceramics during normal carrying (usual use) of the timepiece. Therefore, it is possible to provide a product which sufficiently satisfies the function as a normal dial, which has not been obtained in the past. In addition, there is no need for a ring on the outer periphery of the metal substrate, and the total thickness of the timepiece dial is 110 μm to 3 μm.
By making the thickness 10 μm, the watch side can be thinned and thinned, so that a timepiece dial that does not adversely affect the thinned and thinned watch side can be provided. became. In addition, by reducing the thickness of the front plate, the transparency of the front plate is enhanced, the colors of the vapor-phase plating of various colors provided for aesthetic appearance can be seen clearly, the aesthetic appearance of the dial is further improved, and the character The three-dimensional effect came to appear on the board, and the effect of giving a sense of quality appeared.
第１図及び第２図は本発明の実施例で第１図はサファイ
ヤ文字板の部分断面図、第２図は第１図の文字板を時計
側に組込んだ部分断面図、第３図はサファイヤ文字板の
ハンマー衝撃試験結果を示す図、第４図はセラミックス
文字板のハンマー衝撃試験結果を示す図、第５図及び第
６図は従来例で第５図は文字板の部分断面図、第６図は
第５図の文字板を時計側に組込んだ部分断面図である。 １……サファイヤ表板、 ２、９……接着剤、 ３、10……金属基板、10a……外周リング、 ４、17……文字板足、 ５、13……時計側、5a……文字板受段部、 ６……パッキン、 ７……風防ガラス、 15……気相メッキ。1 and 2 show an embodiment of the present invention. FIG. 1 is a partial cross-sectional view of a sapphire dial, FIG. 2 is a partial cross-sectional view in which the dial of FIG. Fig. 4 shows the results of a hammer impact test of a sapphire dial, Fig. 4 shows the results of a hammer impact test of a ceramic dial, Figs. 5 and 6 are conventional examples, and Fig. 5 is a partial cross-sectional view of the dial. FIG. 6 is a partial sectional view in which the dial of FIG. 5 is assembled on the clock side. 1 ... sapphire top plate, 2, 9 ... adhesive, 3, 10 ... metal substrate, 10a ... outer peripheral ring, 4, 17 ... dial foot, 5, 13 ... clock side, 5a ... character Plate receiving step, 6 ... Packing, 7 ... Windshield, 15 ... Gas phase plating.
Claims (1)
表板と、時計機械への取付足を立設した金属基板とを接
着固定した文字板において、前記表板は、サファイヤま
たはセラミックスからなり、前記表板の厚みの範囲を50
μｍから200μｍ、前記金属基板の厚みの範囲を50μｍ
から100μｍとして接着剤を介してそれぞれ組み合わ
せ、総厚が110μｍから310μｍとなることを特徴とする
時計用文字板。1. A dial in which a front plate using a thin plate of a hard material subjected to vapor-phase plating and a metal substrate on which a mounting foot for a timepiece is erected are adhered and fixed, wherein the front plate is made of sapphire or Made of ceramics, the thickness range of the top plate is 50
μm to 200 μm, the thickness range of the metal substrate is 50 μm
A timepiece dial characterized by having a total thickness of 110 μm to 310 μm, each being combined with an adhesive of from 110 μm to 100 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61246943A JP2617178B2 (en) | 1986-10-17 | 1986-10-17 | Clock dial |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61246943A JP2617178B2 (en) | 1986-10-17 | 1986-10-17 | Clock dial |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63100395A JPS63100395A (en) | 1988-05-02 |
| JP2617178B2 true JP2617178B2 (en) | 1997-06-04 |
Family
ID=17156049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61246943A Expired - Fee Related JP2617178B2 (en) | 1986-10-17 | 1986-10-17 | Clock dial |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2617178B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0545592U (en) * | 1991-11-22 | 1993-06-18 | 京セラ株式会社 | Clock face |
| JP2545421Y2 (en) * | 1991-12-25 | 1997-08-25 | 京セラ株式会社 | clock |
| US6155383A (en) * | 1996-06-11 | 2000-12-05 | Shimano, Inc. | Bicycle brake device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5522657U (en) * | 1978-08-01 | 1980-02-14 | ||
| JPS5631374U (en) * | 1979-08-16 | 1981-03-26 |
-
1986
- 1986-10-17 JP JP61246943A patent/JP2617178B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63100395A (en) | 1988-05-02 |
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