JPS5835487A - Fixing structure for back of watch - Google Patents
Fixing structure for back of watchInfo
- Publication number
- JPS5835487A JPS5835487A JP13463981A JP13463981A JPS5835487A JP S5835487 A JPS5835487 A JP S5835487A JP 13463981 A JP13463981 A JP 13463981A JP 13463981 A JP13463981 A JP 13463981A JP S5835487 A JPS5835487 A JP S5835487A
- Authority
- JP
- Japan
- Prior art keywords
- projection
- back cover
- protrusion
- seal member
- watch
- 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.)
- Pending
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
- G04B37/00—Cases
- G04B37/08—Hermetic sealing of openings, joints, passages or slits
- G04B37/11—Hermetic sealing of openings, joints, passages or slits of the back cover of pocket or wrist watches
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Clamps And Clips (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、時計における裏蓋固定構造に関すＬものであ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a back cover fixing structure for a watch.
腕時計において、裏蓋を胴に固定する簡単な方法として
は、裏蓋とケースの胴とに凹凸等による保合構造を設け
、裏蓋を直接用に嵌合させて固定するものがある。この
ように直接嵌合する構造では、嵌合部に高い精度が要求
され、寸法管理が困難なものとなっている。A simple method for fixing the back cover to the body of a wristwatch is to provide a retaining structure such as unevenness on the back cover and the body of the case, and then directly fit and fix the back cover. In such a direct fitting structure, high precision is required for the fitting portion, making dimensional control difficult.
又、強圧綿できないので、高圧防水構造とすることがで
きない、等の欠点がある。In addition, it has disadvantages such as the fact that it cannot be made into a high-pressure waterproof structure because it cannot be made of high-pressure cotton.
このような事実より、本発明は、直接嵌合せず低い精度
で、しかも確実に裏蓋を固定し、且つ、防水効果も高く
することのできる固定構造を提供せんとするものである
。In view of these facts, the present invention aims to provide a fixing structure that can securely fix the back cover with low precision without direct fitting, and can also have a high waterproof effect.
本発明による裏蓋固定構造は、時計ケースの胴における
裏蓋係合部周壁に形成された水平方向の突起と、裏蓋に
おける周壁に設けられた水平方向の突起とを有し、裏蓋
の突起は胴の突起より内方に位置して食違いの関係位置
を有し、鉤突起間の食違い空間内に弾性シール部材が介
在して裏蓋の脱出を阻止していることを特徴としている
。The case back fixing structure according to the present invention has a horizontal protrusion formed on the circumferential wall of the case back engaging part in the body of the watch case, and a horizontal protrusion provided on the circumferential wall of the case back. The protrusions are located inward from the protrusions on the body and have staggered positions, and an elastic seal member is interposed in the staggered space between the hook protrusions to prevent the case back from escaping. There is.
以下図面を参照して説明する。第１図は裏蓋係合前の状
態を示し、腕時計ケースの胴１は偏平な円筒状をなし、
その下部の下面に裏蓋当接面２が形成され、内周には水
平方向（横方向）の環状係合突起３が形成されている。This will be explained below with reference to the drawings. Figure 1 shows the state before the back cover is engaged, and the body 1 of the wristwatch case has a flat cylindrical shape.
A back cover abutting surface 2 is formed on the lower surface of the lower part, and a horizontal (lateral) annular engagement protrusion 3 is formed on the inner periphery.
該突起３の下部には斜面による傾斜導入部４が形成され
、父上部には係止角部５が形成されている。A sloped introduction part 4 is formed at the lower part of the protrusion 3, and a locking corner part 5 is formed at the father part.
一方、裏蓋６は胴１０当接面２に接する当接面７が外周
に形成され、その内側に垂直方向（軸方向）の環状突起
８が形成されている。On the other hand, the back cover 6 has a contact surface 7 on its outer periphery that contacts the contact surface 2 of the barrel 10, and a vertical (axial) annular protrusion 8 is formed inside the contact surface 7.
該突起８の上部外側に、水平方向の環状係合突起９が形
成されている。該突起９は嵌合時にその下側角部１０が
突起３の角部５より内方（上方）に位置し、又突起９の
外径は突起３の内径より小となっている。A horizontal annular engagement protrusion 9 is formed on the upper outer side of the protrusion 8 . When the protrusion 9 is fitted, the lower corner 10 is located inside (above) the corner 5 of the protrusion 3, and the outer diameter of the protrusion 9 is smaller than the inner diameter of the protrusion 3.
裏蓋を固定するには、ニトリル、ブタジェン、ラバー等
の弾性バンキング又は０リングよりなる弾性シール部材
１１を裏蓋の突起８の外側に形成された溝１２に嵌め、
次に裏蓋を胴１内に押し込むと、０リングシ一ル部材１
１は傾斜導入部４に案内され変形しつつ突起３を通過し
、その一部１１ａが突起３の上側に回り込み、第２図及
び第３図に示すように裏蓋が胴に係合される。裏蓋を外
す時には、工具により裏蓋をこじ明ければ弾性シール部
材１１が変形して裏蓋を外すことができる。To secure the back cover, an elastic sealing member 11 made of an elastic banking or O-ring made of nitrile, butadiene, rubber, etc. is fitted into a groove 12 formed on the outside of the protrusion 8 of the back cover.
Next, when the back cover is pushed into the case 1, the O-ring seal member 1
1 is guided by the inclined introduction part 4 and passes through the protrusion 3 while being deformed, and a portion 11a thereof wraps around the upper side of the protrusion 3, and the back cover is engaged with the case as shown in FIGS. 2 and 3. . When removing the back cover, if the back cover is pried open using a tool, the elastic sealing member 11 is deformed and the back cover can be removed.
この係合状態ではシール部材１１が裏蓋の脱出を阻止し
、かなり強い抜刀、例えば１０〜．を有するものを構成
することができる。In this engaged state, the sealing member 11 prevents the back cover from escaping, and the knife is pulled out quite strongly, for example 10~. It is possible to construct something with
第３図に示した形状の場合の好ましい寸法は次の通りで
ある。Preferred dimensions for the shape shown in FIG. 3 are as follows.
ａニア００ｐ ｂ：３００μ ｃ’４００μ
ｄ ：１５０，１１ ｅ ：３００μ０リングの断
面直径６００μ
第４図ａ乃至（は胴１の突起３の種々の形状を示し、第
５図ａ ” ｃは裏蓋６における突起８の変形例を示す
。このように突起は、種々変形可能で、弾性シール部材
の材質その他の条件に従って適宜選択゛すればよい。a Near 00p b: 300μ c'400μ
d: 150, 11 e: 300μ0 Ring cross-sectional diameter 600μ Figures 4a to () show various shapes of the protrusion 3 on the case 1, and Figures 5a to 5c show modified examples of the protrusion 8 on the case back 6. As described above, the protrusion can be modified in various ways, and may be appropriately selected according to the material of the elastic sealing member and other conditions.
以上で明かなように本発明によれば、裏蓋とは直接嵌合
しないので、高い寸法精度を要求されず、製作組立が容
易である。弾性シール部材を強圧綿することができるの
で高い抜力及び高圧防水効果を得ることができる。As is clear from the above, according to the present invention, since it is not directly fitted to the back cover, high dimensional accuracy is not required and manufacturing and assembly is easy. Since the elastic sealing member can be made of highly compressed cotton, it is possible to obtain a high extraction force and a high-pressure waterproof effect.
第１図は本発明の一実施例の組立前の状態を示す断面図
、第２図は同組立後の状態を示す断面図、第３図は第２
図の一部拡大図、第４図ａ−ｅはケースの胴における保
合突起の変形例を示す断面図、第５図ａ−ｃは裏蓋の突
起の変形例を示す断面図である。
１・・・胴、２・・・裏蓋当接面、３・・・突起、４・
・・傾斜導入部、５・・・係止角部、６・・・裏蓋、１
・・・当接面、８，９・・・突起、１ｏ・・・下側角部
、１１・・・シール部材、１２・・・溝、。
特許出願人 シチズン時計株式会社２４問
ａ ｂ
ａ ｂ
４９９−FIG. 1 is a sectional view showing the state before assembly of an embodiment of the present invention, FIG. 2 is a sectional view showing the state after assembly, and FIG. 3 is the sectional view showing the state after assembly.
4A to 4E are cross-sectional views showing modified examples of the retaining protrusion on the body of the case, and FIGS. 5 AC are cross-sectional views showing modified examples of the protrusion on the back cover. 1...Body, 2...Back cover contact surface, 3...Protrusion, 4...
... Inclined introduction part, 5 ... Locking corner part, 6 ... Back cover, 1
...Abutment surface, 8, 9...Protrusion, 1o...Lower corner, 11...Seal member, 12...Groove. Patent applicant Citizen Watch Co., Ltd. 24 questions a b a b 499-
Claims (1)
平方向の突起と、裏蓋における周壁に設けられた水平方
向の突起とを有し、裏蓋の突起は胴の突起より内方に位
置して食違いの関係位置を有し、鉤突起間の食違い空間
内に弾性シール部材が介在して裏蓋の脱出を阻止してい
ることを特徴とする時計における裏蓋固定構造。It has a horizontal protrusion formed on the circumferential wall of the back cover engaging part on the body of the watch case, and a horizontal protrusion formed on the circumferential wall of the back cover, and the protrusion on the back cover is located inwardly from the protrusion on the body. 1. A back cover fixing structure for a watch, characterized in that the hook projections have staggered relational positions, and an elastic seal member is interposed in the staggered space between the hook projections to prevent the back cover from escaping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13463981A JPS5835487A (en) | 1981-08-27 | 1981-08-27 | Fixing structure for back of watch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13463981A JPS5835487A (en) | 1981-08-27 | 1981-08-27 | Fixing structure for back of watch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5835487A true JPS5835487A (en) | 1983-03-02 |
Family
ID=15133064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13463981A Pending JPS5835487A (en) | 1981-08-27 | 1981-08-27 | Fixing structure for back of watch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5835487A (en) |
-
1981
- 1981-08-27 JP JP13463981A patent/JPS5835487A/en active Pending
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