A7 B7 經濟部智慧財產局員Η消費合作社印製 五、發明說明（1 ) 本發明與製造錶殼的方法有關，包括中間部、背蓋及 支撑錶內部另件的支撐環’其中，中間部及支撐環是分別 製造’接著以具彈性之材料製成的另件將支撐環固定到中 間部的內部。本發明也與經由此種方法得到的錶殼有關。 在錶且特別是手錶的領域，將錶的某些另件，如機心 、針面或錶玻璃等配置於支撐環（通常稱爲套環）內，再 將套環塞入錶的中間部，例如瑞士專利 No. 681 127中所描述。 如果是防水錶’要在背蓋四周，旋桿及錶玻璃四周塡 塞許多由彈性材料製成的氣密墊。 雖然中間部內部的機械加工只是簡單地將套環塞入， 但困難之處至今仍未獲滿意解決。特別是，爲避免套環與 中間部間的任何角位移，在前述文件的習知技術中，中間 部必須提供一或多個孔，以容納支撐部相同數量之的爪或 螺絲。中間部內部尺寸的問題是它必須與套環匹配，且因 此保持完整。 當中間部是由硬材料製成時，例如陶瓷材料或硬金屬 ’此問題特別嚴重。另一方面，這些部分通常是以開模或 燒結方法製造，因此會經歷尺寸的變化，未加工的組件很 難得到精確的最終尺寸。另一方面，這些硬零件的內部加 工很困難且昂貴。除了套環與中間部內部的配合問題外， 還有套環與機心正確定位的問題，特別是將其置於中間部 中央位置的問題，中間部未經加工的尺寸或甚至最終尺寸 都不精確。 ---— LI— I!裝·! (請先《讀背面之注意事項一〇寫本頁：A7 B7 Printed by a member of the Intellectual Property Bureau of the Ministry of Economic Affairs and printed by a consumer cooperative. V. Description of the invention (1) The present invention relates to a method of manufacturing a watch case, including a middle part, a back cover, and a support ring for supporting internal parts of the watch. The support ring is manufactured separately and then an elastic member is used to fix the support ring to the inside of the middle portion. The invention also relates to a watch case obtained by such a method. In the field of watches and especially watches, some other parts of the watch, such as the movement, needle surface or watch glass, are arranged in a support ring (commonly called a collar), and then the collar is inserted into the middle of the watch As described in Swiss Patent No. 681 127. If it is a water-resistant watch, it is necessary to surround the back cover, the air-tight pad made of elastic material around the rotating rod and the watch glass. Although the machining of the inside of the middle part simply inserts the collar, the difficulties have not yet been satisfactorily resolved. In particular, in order to avoid any angular displacement between the collar and the middle portion, in the conventional technique of the aforementioned document, the middle portion must be provided with one or more holes to accommodate the same number of claws or screws of the support portion. The problem with the internal dimensions of the middle is that it must match the collar and therefore remain intact. This problem is particularly serious when the middle portion is made of a hard material, such as a ceramic material or a hard metal. On the other hand, these parts are usually manufactured by an open mold or sintering method, and therefore undergo dimensional changes, and it is difficult to obtain accurate final dimensions of the raw components. On the other hand, internal machining of these hard parts is difficult and expensive. In addition to the problem of the fitting of the collar and the inside of the middle, there is also the problem of the correct positioning of the collar and the movement, especially the problem of placing it in the middle of the middle. The unprocessed or even final dimensions of the middle are not accurate. ---— LI— I! Outfit !! (Please read "Precautions on the back side 10" before writing this page:
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C -線· 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公« ) _ 4 - A7 A7 經濟部智慧財產局貝工消费合作社印製 _ B7___ 五、發明說明（2 ) 以橡膠製成的彈性環置於中間部與內金屬環之間，將 機心彈性懸吊於錶殼內是習知技術，特別是在法國專利 No·898 248中提及。橡膠環是預先製造，具有 ’既定尺寸，塞入中間部，使用黏著材料固定。它可以藉黏 著組裝於套環。此環抵住玻璃卡環及錶殼的背蓋以確保密 封，它還包括一管狀側延體，其功用如同發條桿的氣密環 。不過，此類環的尺寸即定，它無法補償中間部尺寸的變 異，或僅能非常局部性地補償。此外，在前述的專利中並 未提及這類的補償。 本發明的目的是提供一種簡單且經濟的製造方法，以 克服前述的缺點，該方法可以將機心正確精準地定位到錶 殼的中間部內，且可補償中間部任何尺寸的變異，特別是 不需對中間部內部機械加工。本發明的另一目的是很容易 做到錶殼的密封。 因此本發明與前文中所定義之方法有關，其特徵是至 少部分另件是由彈性材料製成，模造成形於中間部與支撐 環間的間隙’在該步驟期間，藉著至少一個模心將支撐環 保持在中間部內所要位置’模心以中間部之一或多個參考 面定位。 模製於支撐環與中間部間隙內之材料的彈性特性，可 免除先前極嚴格的限制’即有關於中間部的內部形狀且要 機械加工到所欲的尺寸。事實上，中間部的內表面不需要 任何機械加工’它將爲彈性材料所覆蓋，甚至這些表面粗 糙或未加工更爲有利，因爲它們可以增進黏著性。支撐環 ----— .---:11----裝--- (請先《讀背面之注意事項〇寫本頁) Ή · —線. 本紙張尺度適財@國家標準（CNS)A4規格（210 X 297公楚y -5- 經濟部智慧財產局貝工消费合作社印製 A7 B7___ 五、發明說明（3) 外部尺寸的問題較少’因爲此部分如果是金屬製成，它通 常經過機械加工，如果是塑膠材料模製而成，也具有足夠 的精確度。 • 本發明的重要態樣是支撐環，特別當其是套環時，其 不需要抵靠著中間部的內表面定位，特別是這些表面將與 彈性材料接觸。此允許選擇其它位置做爲定位支撐環的參 考面’例如中間部的外表面，這些位置無論如何都進行過 機械加工或拋光’或是決定手錶外觀的表面，如錶玻璃或 背蓋扣。 由彈性材料製成的另件是好是利用注入、轉移或壓縮 方式覆模入該間隙。此另件也可包括至少—部分是在覆模 步驟之後定位。 彈性材料製成的另件可以構成中間部與錶殼之背蓋間 ’及/或中間部與通過中間部之控制桿間，及/或中間部 與錶殻之錶玻璃間的氣密墊。 覆模的彈性材料最好經過選擇，以使其能與製造中間 部的材料附著。 從以下對兩個較佳具體例的說明將可明瞭本發明的其 它優點，在此以非限制的實例及附圖說明，其中： -圖1是按第一種具體例製造之錶殼的部分截面圖， -圖2是錶殼另一個位置的截面圖， -圖3顯示整個錶殼及手錶內部另件的截面圖， -圖4是槪略說明注入彈性材料之覆模操作的截面圖 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公爱） -6- I 裝 i I \s/ (锖先閲讀背面之注意事項t窝本頁> * S0 · -線· A7 _B7_五、發明說明（4 ) 一圖5顯示第二具體例的截面圖， -圖6是說明第二具體例之覆模步驟的槪圖。 _符號說明 經濟部智慧財產局貝工消費合作社印製 1 錶殼 2 中間部 3 套環 7 背蓋 4 機心 5 針面 9 另件 9， 管形部 10 套管 17 手錶控制桿 12 密封箍 11 冠形鈕凹室 14 凹室 15 肩部 16 扣鉤 19 氣密墊 2 0 圓筒形表面 2 1 凸緣 2 2 上模心 2 3 下模心 請先閲讀背面之注意事項〇窝本頁：C-line · This paper size is in accordance with China National Standard (CNS) A4 specification (210 X 297 male «) _ 4-A7 A7 Printed by the Shellfish Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs _ B7___ 5. Description of the invention (2) Rubber The manufactured elastic ring is placed between the middle part and the inner metal ring, and the movement is elastically suspended in the watch case, which is a known technology, especially mentioned in French Patent No. 898 248. The rubber ring is made in advance, has a predetermined size, is inserted into the middle portion, and is fixed with an adhesive material. It can be assembled on the collar by adhesive. This ring bears against the glass snap ring and the back cover of the case to ensure sealing. It also includes a tubular side extension that functions like an airtight ring for a spring barrel. However, the size of such a ring is fixed, it cannot compensate for variations in the size of the middle section, or it can only compensate very locally. In addition, no such compensation is mentioned in the aforementioned patents. The purpose of the present invention is to provide a simple and economical manufacturing method to overcome the aforementioned disadvantages. This method can accurately and accurately position the movement into the middle portion of the watch case, and can compensate for any size variation of the middle portion, especially Internal machining of the middle section is required. Another object of the present invention is to easily seal the watch case. The invention is therefore related to the method defined above, characterized in that at least part of the other parts are made of an elastic material, moulded into a gap formed between the middle part and the support ring 'during this step, at least one core The support ring is held in the desired position in the middle portion. The die core is positioned with one or more reference surfaces in the middle portion. The elastic properties of the material moulded in the gap between the support ring and the middle part can be exempted from the previous extremely strict restrictions', that is, the internal shape of the middle part and it must be machined to the desired size. In fact, the inner surface of the middle part does not require any machining. It will be covered by elastic materials, and even rough or unprocessed surfaces are more advantageous because they can improve adhesion. Support ring ----— .---: 11 ---- install --- (please read the “Cautions on the back side, write this page first”) 线 · —line. The paper size is suitable for financial @ National standards (CNS ) A4 specifications (210 X 297 Gongchu y -5- printed by A7 B7___, Shelley Consumer Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs) V. Description of the invention (3) There are fewer problems with the external dimensions, because if this part is made of metal, it It is usually mechanically processed and has sufficient accuracy if it is molded from a plastic material. • An important aspect of the present invention is the support ring, especially when it is a collar, it does not need to be against the inner part of the middle part. Surface positioning, especially these surfaces will be in contact with the elastic material. This allows choosing other positions as reference surfaces for positioning the support ring 'such as the outer surface of the middle, these positions have been machined or polished anyway' or determine the watch The appearance of the surface, such as watch glass or back cover buckle. It is better that the part made of elastic material is overmolded into the gap by injection, transfer or compression. This part can also include at least-partly in the overmolding step. After positioning. Made of elastic material The other parts can form an airtight pad between the middle part and the back cover of the case and / or between the middle part and the control rod passing through the middle part, and / or between the middle part and the watch glass. The material is preferably selected so that it can adhere to the material used to make the middle portion. Other advantages of the present invention will be apparent from the following description of two preferred specific examples, which will be described with non-limiting examples and drawings. Among them:-Fig. 1 is a partial cross-sectional view of a case manufactured according to the first specific example,-Fig. 2 is a cross-sectional view of another position of the case, and-Fig. 3 is a cross-sectional view of the entire case and internal parts of the watch, -Figure 4 is a cross-sectional view illustrating the operation of overmolding by injecting an elastic material. The paper dimensions are applicable to China National Standard (CNS) A4 (210 X 297 public love) -6- I 装 i I \ s / (Read first Note on the back page t> This page> * S0 ·-line · A7 _B7_ V. Description of the invention (4)-Figure 5 shows a cross-sectional view of the second specific example,-Figure 6 is an overlay mold illustrating the second specific example槪 Symbol of the steps. _ Symbol description Printed by Shelley Consumer Cooperative of Intellectual Property Bureau, Ministry of Economic Affairs 1 Case 2 Middle part 3 Collar 7 Back cover 4 Movement 5 Needle surface 9 Other parts 9, Tube part 10 Sleeve 17 Watch lever 12 Seal hoop 11 Crown button recess 14 Recess 15 Shoulder 16 Hook 19 Airtight Pad 2 0 Cylindrical surface 2 1 Flange 2 2 Upper mold core 2 3 Lower mold core Please read the precautions on the back first.
/8V 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） A7 B7 五、發明說明（5 ) 24 模具滑桿 2 6 上表面 3 0 內肩部 3 1 外凸緣 3 2 氣密墊_ 3 3 參考面 3 4 軸 圖1到3所顯示的錶殼1包括中間部2、套環3、背 蓋7。機心4及針面5由套環3支撐。覆模彈性材料製成 的另件9塡充於套環3及中間部2間的整個間隙，並延# 進中間部的側孔，經由管形部9 ’在其內側形成一套管 1 〇 ’以容納手錶控制桿1 7。在套管1 〇內，此管形部 具有一圓形的密封箍1 2。在外側，套管1 〇通向成形於 中間部2的冠形鈕凹室1 1。 圖2顯示相對於圖1之截面圖偏移一角度的截面圖。 這也是爲何套管1 〇的出口 1 3在截面之平面的外部。圖 2顯示機心4的位置6以及背蓋7的位置8。套環3包括 凹室1 4，用以容納機心4的爪，此爪是將機心4固定到 套環3。 圖1及2顯示套環3具有一肩部15 ，嵌在彈性另件 9中。在覆模後，此肩部使環3及另件9相互固定。 從圖3可看出，彈性另件9構成背蓋7與中間部2 ， 以及中間部與控制桿1 7間的密封，歸因於密封箍1 2。 -----rrl·--I.---裝 i — (锖先閲讀背面之注意事寫本頁) “· --線. 經濟部智慧財產局貝工消费合作社印製 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -8- A7 B7 五、發明說明（6 ) 背蓋7以扣鉤1 6與彈性另件9的下部扣合固定，以確保 組裝的防水。 •ill·!*! — ·裝.— I 請先閲讀背面之注ΦΪ#項&窝本頁) 氣密墊19負責錶玻璃18的密封，氣密墊19與彈 性另件9不相連，擠壓於錶玻璃的邊緣與中間部的圓筒形 表面2 0間，稱爲錶玻璃扣合。不過，彈性另件9也可從 置於針面5上之凸緣2 1的後方向上延伸，如圖5所示， 構成錶玻璃1 8與中間部2間密封的氣密墊。 現請參閱圖4，描述成形彈性另件9之覆模的注入步 驟。最好先在要施加彈性材料之中間部2及套環3的表面 上塗布底劑（p r i m e r )以增進彈性材料的黏著。中 間部2放在模具中，模具的固定部（圖中未顯示）完整地 支撐中間部的外圍，以避免被注入的壓力爆破，其壓力會 到達相當高的値。圖4顯示模具的3個活動件，即與環3 嚙合將其固定在定位的上模心2 2，模造彈性另件9下部 線· 的下模心2 3，以及成形管形部9 ’內套管1 0的模具滑 件2 4。模具滑件2 4上塗有底劑以防止與彈性材料黏著 。另件2 2到2 4在箭頭所示的方向移動。彈性材料以習 經濟部智慧財產局貝工消费合作社印製 知的方法經由模心2 2或2 3注入，進料通道孔經過環3 〇 環3相對於中間部2的側面定位不是由中間部而僅是 由上模心2 2支撐，錶玻璃扣2 0的作用如同中間部上的 參考面。如有需要，也可使用中間部的上表面2 6做爲高 度參考面。因此，套環3及其所容納的所有另件，特別是 機心及針面，將在手錶內佔其所該在的正確位置，特別是 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -9- 經濟部智慧財產局貝工消费合作社印製 A7 _____B7__________ 五、發明說明（7 ) 相對於此開放空間的最佳中心，與中間部之內部形狀的任 何不精確無關。背蓋的情況也相同，其位置是由另件9的 下部定義，以傳統的方法藉上模心2 2爲基準，以下模心 _ 2 3模造。 以傳統的方法開模：模具滑件2 4向外抽出，下模心 2 3向下，上模心2 2向上拉開。 彈性另件9的自黏特性使環3及中間部2可以完美地 相互固定在一起，免除了諸如中間部之內部形狀的限制。 還可考慮另一種情況，彈性另件9是由各種另件組合而成 ，每個各佔據環3、中間部2、套管1 0及背蓋7的一部 分。例如，管形部9’可事先覆模或預製而成，並在覆模 步驟前先將其固定在中間部的孔內。 圖5及6顯示本發明的第二種具體例，以下僅就與第 一具體例不同之處加以描述。在本例中，彈性另件9模造 於中間部2及凸緣2 1所構成的支撐環之間。另件9也滿 足套環的功能，因爲它的內表面是經由精確定位及尺寸模 造所得到，與中間部之內部的任何不準確無關。爲使機心 4定位，另件9具有一內肩部3 0，機心的外凸緣3 1固 定於其內。 如前所述，彈性另件9沿著錶玻璃扣2 0向上延伸’ 在錶玻璃1 8與中間部之間形成一氣密墊3 2。 圖6顯示模造成形圖5所示之彈性另件9的方法’與 圖4相同，但模心2 2及2 3的基準稍有不同。爲確保完 美的側向定位，特別是凸緣2 1及另件9之內表面的定心 ----ίΓ————裝·II <請先閲讀背面之注意事項〇寫本頁> SJ! 線. 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -10- A7 390980 ____B7__ 五、發明說明（8 ) ’上模心2 2的基準是以中間部2的外圍表面做爲參考面 3 3。按傳統的方法，下模心2 3以上模心2 2爲基準垂 直滑動，例如沿著通過兩個模心的軸桿3 4。 第二具體例的變化，也可提供結合凸緣2 1的套環， 如圖3所示的情況，但向上較短或與凸緣結合成單個另件 〇 熟悉此方面技術的人士不難想像本發明的其它變化， 不會偏離申請專利範圍所定義的範圍。特別是，所描述的 方法也可應用到錶殼的背蓋與中間部合而爲一，機心從錶 殼上方裝入的情況。 無論以何種方法製造錶殼的中間部及其它另件，都可 以使用本發明的方法。不過，它對省去中間部之內部的機 械加工特別有利。特別是當後者是以模造成形，例如金屬 射模，或是使用陶瓷材料、硬金屬或其它可使用模製之材 料的情況。 • n I I- I Γ ρ ΒΓ I ^ I ϋ I — I (锖先閱讀背面之注意事寫本頁) 幻· --線· 經濟部智慧財產局貝工消费合作杜印製 本紙張尺度適用中國國家標準（CNS)A4規格（210 X 297公釐） -11 -/ 8V This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) A7 B7 V. Description of the invention (5) 24 Mold slider 2 6 Upper surface 3 0 Inner shoulder 3 1 Outer flange 3 2 Airtight pad_ 3 3 Reference surface 3 4 Axes The case 1 shown in FIGS. 1 to 3 includes a middle portion 2, a collar 3, and a back cover 7. The movement 4 and the needle surface 5 are supported by the collar 3. An additional part 9 made of overmolded elastic material fills the entire gap between the collar 3 and the middle part 2 and extends into the side hole of the middle part, and forms a set of tubes 1 on its inner side via the tubular part 9 '. 'To accommodate the watch joystick 1 7. Within the sleeve 10, the tubular portion has a circular sealing collar 12. On the outside, the sleeve 10 leads to a crown button cavity 11 formed in the middle portion 2. FIG. 2 shows a cross-sectional view offset by an angle from the cross-sectional view of FIG. 1. This is also why the outlet 13 of the sleeve 10 is outside the plane of the section. FIG. 2 shows position 6 of the movement 4 and position 8 of the back cover 7. The collar 3 includes a recess 14 for receiving the claw of the movement 4, which is used to fix the movement 4 to the collar 3. Figures 1 and 2 show that the collar 3 has a shoulder 15 embedded in an elastic member 9. After overmolding, this shoulder fixes the ring 3 and the other part 9 to each other. As can be seen from FIG. 3, the elastic component 9 constitutes the seal between the back cover 7 and the middle portion 2, and the middle portion and the control rod 17, which is attributed to the seal hoop 12. ----- rrl · --I .--- install i — (锖 read the notes on the back first and write this page) "· -line. The paper size printed by the Shelley Consumer Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs applies China National Standard (CNS) A4 (210 X 297 mm) -8- A7 B7 V. Description of the invention (6) The back cover 7 is fastened with the hook 16 and the lower part of the elastic accessory 9 to ensure the assembly Waterproof. Ill ·! *! — · Install. — I Please read the note on the back ΦΪ # Item & this page) The airtight gasket 19 is responsible for sealing the glass 18, and the airtight gasket 19 and the elastic accessory 9 are not Connected, squeezed between the edge of the watch glass and the cylindrical surface 20 in the middle, called the watch glass buckle. However, the elastic member 9 can also be from the back of the flange 21 on the needle surface 5 Extending upwards, as shown in Figure 5, constitutes an air-tight gasket that seals between the watch glass 18 and the middle portion 2. Now referring to Figure 4, the injection step of the overmold for forming the elastic part 9 will be described. A primer is applied to the surface of the middle portion 2 and the collar 3 of the elastic material to improve the adhesion of the elastic material. The middle portion 2 is placed in a mold, and the fixed portion of the mold (not shown in the figure) (Shown) completely support the periphery of the middle part to avoid being burst by the injected pressure, which will reach a relatively high pressure. Figure 4 shows the three movable parts of the mold, which mesh with the ring 3 to fix it on the positioning upper mold. Core 2 2, moulded elastic part 9 lower line · lower die core 2 3, and mould slide 2 2 for forming tubular part 9 'inner sleeve 10 0. The mould slide 2 4 is coated with a primer to prevent contact with The elastic material is adhered. The other parts 2 2 to 2 4 move in the direction shown by the arrow. The elastic material is injected through the mold core 2 2 or 2 3 in the method known by the printed materials of the Shell Property Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. The hole passes through the ring 3 〇 The positioning of the ring 3 relative to the middle part 2 is not supported by the middle part but only by the upper mold core 2 2. The watch glass buckle 20 acts like a reference surface on the middle part. If necessary, also The upper surface 26 of the middle part can be used as the height reference surface. Therefore, the collar 3 and all the other components it contains, especially the movement and needle surface, will occupy the correct position in the watch, In particular, this paper size applies to China National Standard (CNS) A4 (210 X 297 (Centi) -9- Printed by the Shelley Consumer Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs A7 _____B7__________ 5. Description of the Invention (7) The optimal center of this open space is not related to any inaccuracy of the internal shape of the middle. The situation is the same, its position is defined by the lower part of the other part 9, and the traditional method borrows the mold core 2 2 as the reference, and the following mold core _ 2 3 is molded. Open the mold by the traditional method: mold slide 2 4 outwards Withdraw, the lower core 2 3 is downward, and the upper core 2 2 is pulled upward. The self-adhesive property of the elastic part 9 allows the ring 3 and the middle portion 2 to be perfectly fixed to each other, eliminating the internal shape such as the middle portion limits. Another case can also be considered. The elastic parts 9 are made up of various parts, each occupying a part of the ring 3, the middle part 2, the sleeve 10 and the back cover 7. For example, the tubular portion 9 'can be overmolded or prefabricated in advance, and it can be fixed in a hole in the middle portion before the overmolding step. 5 and 6 show a second specific example of the present invention, and only the differences from the first specific example will be described below. In this example, the elastic member 9 is molded between the support ring formed by the middle portion 2 and the flange 21. The other part 9 also fulfills the function of the collar, because its inner surface is obtained by precise positioning and dimensional molding, regardless of any inaccuracy inside the middle portion. In order to position the movement 4, the other part 9 has an inner shoulder 30, and the outer flange 31 of the movement is fixed therein. As described above, the elastic member 9 extends upward along the watch glass buckle 20 'to form an air-tight pad 32 between the watch glass 18 and the middle portion. Fig. 6 shows that the method of forming the elastic member 9 shown in Fig. 5 'is the same as that of Fig. 4, but the bases of the mold cores 2 2 and 23 are slightly different. To ensure perfect lateral positioning, especially the centering of the inner surfaces of the flange 21 and the accessory 9 ---- ίΓ ———— install · II < Please read the precautions on the back first. Write this page > SJ! Line. This paper size is applicable to Chinese National Standard (CNS) A4 (210 X 297 mm) -10- A7 390980 ____B7__ 5. Description of the invention (8) 'The upper die core 2 2 is based on the middle part 2 The peripheral surface is used as the reference surface 3 3. According to the conventional method, the lower mold core 2 3 is vertically slid above the mold core 22 as a reference, for example, along the shaft rod 3 4 passing through the two mold cores. A variation of the second specific example can also provide a collar combined with the flange 21, as shown in FIG. 3, but it is short upward or combined with the flange into a single piece. It is not difficult for those familiar with this technology to imagine Other variations of the invention will not depart from the scope defined by the scope of the patent application. In particular, the described method can also be applied to the case where the back cover and middle part of the case are integrated into one, and the movement is inserted from above the case. The method of the present invention can be used regardless of the method of manufacturing the middle part of the watch case and other parts. However, it is particularly advantageous for eliminating the need for machining inside the middle. This is especially the case when the latter is formed by molding, such as metal injection molding, or when ceramic materials, hard metals, or other molding materials can be used. • n I I- I Γ ρ ΒΓ I ^ I ϋ I — I (锖 Please read the note on the back to write this page first) Magic ·-Line · Intellectual Property Bureau of the Ministry of Economic Affairs Chinese National Standard (CNS) A4 (210 X 297 mm) -11-