JPS5937474B2 - Fixed structure of watch glass - Google Patents
Fixed structure of watch glassInfo
- Publication number
- JPS5937474B2 JPS5937474B2 JP4823277A JP4823277A JPS5937474B2 JP S5937474 B2 JPS5937474 B2 JP S5937474B2 JP 4823277 A JP4823277 A JP 4823277A JP 4823277 A JP4823277 A JP 4823277A JP S5937474 B2 JPS5937474 B2 JP S5937474B2
- Authority
- JP
- Japan
- Prior art keywords
- glass
- packing
- fixed structure
- outer periphery
- watch glass
- 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
Links
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B39/00—Watch crystals; Fastening or sealing of crystals; Clock glasses
- G04B39/02—Sealing crystals or glasses
Landscapes
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electric Clocks (AREA)
- Gasket Seals (AREA)
- Joining Of Glass To Other Materials (AREA)
Description
【発明の詳細な説明】
本発明は腕時計ケースのガラス固定構造に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a glass fixing structure for a wristwatch case.
ガラス外周をパツキンで径方向に圧縮して固定する構造
の公知例の縦断面図を第１図に示す。FIG. 1 shows a longitudinal sectional view of a known example of a structure in which the outer periphery of the glass is compressed and fixed in the radial direction with a gasket.
第１図に於て、１はガラス、２はＬ型パツキン、３は胴
である。In FIG. 1, 1 is a glass, 2 is an L-shaped gasket, and 3 is a barrel.
胴３の内周には環状溝３ａが設けられてお〃圧縮された
Ｌ型パツキン２はこの溝３ａに喰い込み、これによりパ
ツキン２と胴３．！：の間に発生した軸方向の固定力が
増加する。An annular groove 3a is provided on the inner periphery of the shell 3, and the compressed L-shaped packing 2 bites into this groove 3a, whereby the packing 2 and the shell 3. ! : The axial fixing force generated between increases.
これに対して、ガラス１とＬ型パツキン２との間の軸方
向の固定力は溝３ａが設けられていないため、主として
、ガラス１゛とＬ型パツキン２の摩擦力だけによシ決定
されている。On the other hand, since the groove 3a is not provided, the fixing force in the axial direction between the glass 1 and the L-shaped packing 2 is mainly determined only by the frictional force between the glass 1' and the L-shaped packing 2. ing.
周知の如く、摩擦力は、接触する物質相互の摩擦係数と
接触圧力によって決定され、それ故に摩擦係数に係わる
ガラス１の外周面の精粗、及び接触圧力に係わるパツキ
ン２の応力緩和特性の２つの要印に強く左右される。As is well known, frictional force is determined by the friction coefficient and contact pressure between the materials in contact with each other. Therefore, the friction coefficient is determined by the roughness of the outer peripheral surface of the glass 1, and the contact pressure is influenced by the stress relaxation characteristics of the packing 2. It is strongly influenced by one key sign.
従来は、摩擦係数を増加させる為に、ガラス１の外周面
を粗面に加工する方法が用いられていたが、その反面、
粗面によシ水密性が低下してしまう欠点があった。Conventionally, in order to increase the coefficient of friction, a method was used to roughen the outer peripheral surface of the glass 1, but on the other hand,
The rough surface had the disadvantage of decreasing watertightness.
又、一方、従来より広くパツキン材に用いられている合
成樹脂は時計携帯時の長期に亘る厳しい環境変化に暴さ
れて、多かれ少なかれ初期の圧縮応力の緩和を起すこと
は周知であシ、従って、ガラス１とＬ型パツキン２の間
の径方向の接触圧力も当然低下することになる。On the other hand, it is well known that synthetic resins, which have been widely used in packing materials, are exposed to severe environmental changes over a long period of time when watches are carried, and their initial compressive stress is more or less relaxed. Naturally, the radial contact pressure between the glass 1 and the L-shaped packing 2 also decreases.
上に述べた様な理由で、この従来の公知例に於ては、特
にガラス１とＬ型パツキン２の間の長期に亘る安定した
固定力及び水密性を得ることが困難であった。For the reasons mentioned above, in this conventionally known example, it was particularly difficult to obtain stable fixing force and watertightness over a long period of time between the glass 1 and the L-shaped packing 2.
本発明は上記の従来技術の欠点を除くためのものであ仄
ガラス外周に環状突起を設けると共に、Ｌ型パツキンの
材質に熱可塑性エラストマーを用いることによシ、上方
への固定力及び水密性の向上を計ったものである。The present invention is intended to eliminate the above-mentioned drawbacks of the prior art, and by providing an annular protrusion on the outer periphery of the glass and using thermoplastic elastomer as the material of the L-shaped packing, upward fixing force and watertightness are achieved. It was designed to improve the
本発明の実施例を以下図面に基いて説明する。Embodiments of the present invention will be described below based on the drawings.
第２図に本発明の実施例の縦断面図を示す。FIG. 2 shows a longitudinal sectional view of an embodiment of the present invention.
４は無機又は有機のガラス、４ａはガラス外周立上シ部
に設けられた環状突起、５は熱可塑性ニジストマー製の
Ｌ型パツキン、６は胴を示す。4 is an inorganic or organic glass, 4a is an annular projection provided on the raised portion of the outer periphery of the glass, 5 is an L-shaped packing made of thermoplastic nidistomer, and 6 is a body.
６ａは胴の内側に設けられた環状溝である。6a is an annular groove provided inside the barrel.
ガラス４の外周にＬ型パツキン５を装着したのち、一定
の圧縮代を持って胴６の内周大径６ｂ押込む。After attaching the L-shaped gasket 5 to the outer periphery of the glass 4, it is pushed into the large inner diameter 6b of the body 6 with a certain amount of compression.
これによシ、ガラス外周に設けられた環状突起４ａの上
面及び胴６の内周大径６ｂの環状溝６ａの内部にＬ型パ
ツキン５が喰込む。As a result, the L-shaped packing 5 bites into the upper surface of the annular protrusion 4a provided on the outer periphery of the glass and into the annular groove 6a of the large inner diameter 6b of the body 6.
パツキン材としては、弾性と塑性の中間的性質を有する
。As a packing material, it has properties intermediate between elasticity and plasticity.
例えば（商品名）ペルプレン等、永久歪３０〜７０係の
熱可塑性ニジストマーが適しておシ、そのパツキン材の
一部はガラス外周の環状突起４ａ及び胴６の内周大径６
ｂの環状溝６ａに喰込みある程度の塑性変形をして軸方
向の固定を増大せしむると同時に塑性変形後も弾性反撥
力を保持して、ガラス４を径方向に圧縮し水密シールの
機構を果す。For example, a thermoplastic nitrogen gas having a permanent set of 30 to 70, such as (trade name) Pelprene, is suitable.The sealing material is partly made of an annular protrusion 4a on the outer periphery of the glass and a large diameter 6 on the inner periphery of the body 6.
It bites into the annular groove 6a of b and undergoes some plastic deformation to increase fixation in the axial direction, and at the same time maintains elastic repulsion even after plastic deformation to compress the glass 4 in the radial direction and create a watertight seal. fulfill.
パツキン材として合成ゴム等の弾性材料を用いる場合、
環状突起４ａ及び環状溝６ａに喰込んだパツキン材はほ
とんど塑性変形せず、軸方向の固定力の大巾な増加が望
めない。When using elastic materials such as synthetic rubber as the packing material,
The packing material bitten into the annular projection 4a and the annular groove 6a hardly undergoes plastic deformation, and a large increase in the fixing force in the axial direction cannot be expected.
又パツキン材にナイロン又はテフロン等の塑性材に近い
樹脂を用いる場合、パツキン材が環状突起４ａ及び環状
溝６ａ部に塑性変形して喰込み、ガラス４の固定力が著
しく増加するが、塑性変形部の弾性発撥量が少なく水密
シールの機能を果すことがむずかしい。In addition, when a resin similar to a plastic material such as nylon or Teflon is used for the packing material, the packing material plastically deforms and bites into the annular protrusion 4a and the annular groove 6a, and the fixing force of the glass 4 increases significantly. It is difficult to perform the function of a watertight seal because the amount of elasticity of the part is small.
第３図、第４図、第５図に本発明のガラス外周に設けら
れた環状突起の他の実施汐りを示す。FIGS. 3, 4, and 5 show other embodiments of the annular protrusion provided on the outer periphery of the glass according to the present invention.
本発明は上記の如くであシ、従来技術では実現出来なか
ったガラス固定力の大巾な増加とその長期安定性を実現
すると共に、水密性の向上とその長期安定性をも同時に
実現することを可能とした画期的なものである。As described above, the present invention achieves a large increase in glass fixing force and its long-term stability, which could not be achieved with conventional techniques, and also simultaneously achieves improved watertightness and its long-term stability. This is an epoch-making technology that has made this possible.
一般に、有機ガラスは、低温により著しい寸法収縮が生
じる性質を有しておシ、第１図に示すよぅな構造に用い
られた場合ガラスに対するパツキンの径方向の圧縮力が
極端に低下し、ガラスの軸方向固定力と水密性が著しく
損なわれる力ζ本発明の実施例では、ガラスを有機ガラ
スにしてもガラス外周の環状突起部に塑性変形し且つガ
ラスを径方向に弾圧している熱可塑性エラストマー製の
パツキンが有機ガラスの寸法収縮に追従し、固定力と水
密性を充分に維持することができ、その効果は非常だ太
きい。In general, organic glass has the property of causing significant dimensional shrinkage at low temperatures, and when used in the structure shown in Figure 1, the compressive force of the packing in the radial direction against the glass is extremely reduced, causing the glass to shrink. The force that significantly impairs the axial fixing force and watertightness of The elastomer packing can follow the dimensional shrinkage of organic glass and maintain sufficient fixing force and watertightness, and its effectiveness is extremely significant.
また、有機ガラスは射出成形； により容易に成型する
ことができ、この点でも本発明の実用効果は太きい。Further, organic glass can be easily molded by injection molding, and the practical effects of the present invention are significant in this respect as well.
以上述べた如く、本発明は多大の効果を有しておち、胴
に直接ガラスを固定する構造だけでなく、ガラス縁を用
いた構、造に適用してもその効果を発揮するものである
。As described above, the present invention has many effects, and its effects are exhibited not only when applied to structures in which glass is directly fixed to the body, but also when applied to structures using glass edges. .
第１図は従来の時計ガラスの固定構造を示す縦断面図、
第２図は不発明の実施例を示す縦断面図、第３図、第４
図、第５図はそれぞれガラス外周の環状突起の他の実施
例を示す縦断面図である。
１．４・・・・・・ガラス、２．５・・・・・・Ｌ型パ
ツキン、３．６・・・・・・胴。Figure 1 is a vertical cross-sectional view showing the fixing structure of a conventional watch glass.
Figure 2 is a vertical sectional view showing an embodiment of the invention, Figures 3 and 4.
5 are longitudinal cross-sectional views showing other embodiments of the annular protrusion on the outer periphery of the glass. 1.4... Glass, 2.5... L-shaped gasket, 3.6... Body.
Claims (1)
を有するガラス固定部材との間に、熱可塑性エラストマ
ーよシなるＬ型パツキンを絞代をもって装着して構成し
、ガラスの固定力と防水性を得ることを特徴とする時計
ガラスの固定構造。1. An L-shaped packing made of thermoplastic elastomer is attached with a drawing margin between the glass having a protrusion on the outer periphery of the glass and the glass fixing member having a groove on the large diameter of the inner periphery. Fixed structure of watch glass, characterized by obtaining strength and waterproofness.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4823277A JPS5937474B2 (en) | 1977-04-26 | 1977-04-26 | Fixed structure of watch glass |
| GB1516778A GB1566543A (en) | 1977-04-26 | 1978-04-18 | Arrangement for holding a watch glass on a watch case |
| DE19782817770 DE2817770A1 (en) | 1977-04-26 | 1978-04-22 | ARRANGEMENT FOR HOLDING A PROTECTIVE GLASS |
| HK54381A HK54381A (en) | 1977-04-26 | 1981-11-05 | Arrangement for holding a watch glass on a watch case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4823277A JPS5937474B2 (en) | 1977-04-26 | 1977-04-26 | Fixed structure of watch glass |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS53133061A JPS53133061A (en) | 1978-11-20 |
| JPS5937474B2 true JPS5937474B2 (en) | 1984-09-10 |
Family
ID=12797685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4823277A Expired JPS5937474B2 (en) | 1977-04-26 | 1977-04-26 | Fixed structure of watch glass |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS5937474B2 (en) |
| DE (1) | DE2817770A1 (en) |
| GB (1) | GB1566543A (en) |
| HK (1) | HK54381A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS609742Y2 (en) * | 1979-01-27 | 1985-04-05 | シチズン時計株式会社 | Fixed structure of watch case |
| FR2537297B1 (en) * | 1982-12-02 | 1985-10-11 | Poux Jean Yves | SYSTEM FOR ADJUSTING QUARTZ WATCHES "WITHOUT PUSHERS OUTSIDE THE CASE" |
| WO1984002203A1 (en) * | 1982-12-02 | 1984-06-07 | Poux Jean Yves | Quartz watch with monobloc case, without press-button or crown on the outside |
| DE69911908T2 (en) * | 1999-03-03 | 2004-11-04 | Rolex Sa | Device for tightly attaching a watch glass to a watch case |
| WO2009009764A1 (en) | 2007-07-12 | 2009-01-15 | Apple Inc. | Methods for integrally trapping a glass insert in a metal bezel and produced electronic device |
| JP5369145B2 (en) * | 2011-07-08 | 2013-12-18 | マルミ光機株式会社 | Waterproofing mechanism of filter frame in digital camera |
| WO2013162504A2 (en) | 2012-04-23 | 2013-10-31 | Apple Inc. | Methods and systems for forming a glass insert in an amorphous metal alloy bezel |
-
1977
- 1977-04-26 JP JP4823277A patent/JPS5937474B2/en not_active Expired
-
1978
- 1978-04-18 GB GB1516778A patent/GB1566543A/en not_active Expired
- 1978-04-22 DE DE19782817770 patent/DE2817770A1/en not_active Ceased
-
1981
- 1981-11-05 HK HK54381A patent/HK54381A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| JPS53133061A (en) | 1978-11-20 |
| DE2817770A1 (en) | 1978-11-02 |
| GB1566543A (en) | 1980-05-08 |
| HK54381A (en) | 1981-11-13 |
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