EP1785785A2 - Boîtier de montre externe avec lentille constituée de cristal artificiel et procédé de fabrication de celui-ci - Google Patents

Boîtier de montre externe avec lentille constituée de cristal artificiel et procédé de fabrication de celui-ci Download PDF

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Publication number
EP1785785A2
EP1785785A2 EP06001729A EP06001729A EP1785785A2 EP 1785785 A2 EP1785785 A2 EP 1785785A2 EP 06001729 A EP06001729 A EP 06001729A EP 06001729 A EP06001729 A EP 06001729A EP 1785785 A2 EP1785785 A2 EP 1785785A2
Authority
EP
European Patent Office
Prior art keywords
lens
watch case
external watch
case
external
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.)
Withdrawn
Application number
EP06001729A
Other languages
German (de)
English (en)
Other versions
EP1785785A3 (fr
Inventor
Hoi San Loby Ng
Hoi Keung Ng
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1785785A2 publication Critical patent/EP1785785A2/fr
Publication of EP1785785A3 publication Critical patent/EP1785785A3/fr
Withdrawn legal-status Critical Current

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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
    • 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
    • G04B39/004—Watch crystals; Fastening or sealing of crystals; Clock glasses from a material other than glass

Definitions

  • the present invention relates to an external watch case with lens and a method of making the same, and in particular to an external watch case with lens made of artificial crystal glass and a method of making the same.
  • the conventional watches have a watch body and a watch strap or band, the watch body usually comprising watch lens, watch case, back cover, and inside dial, time display device, watch movement and watch adjusting mechanism.
  • the lens is engaged tightly with the watch case through a seal ring.
  • such design can not endure overwhelming external force, and the shape and size of the lens and the watch case are also restricted: Moreover, the visibility of the internal components is affected by the existence of the seal ring and the corresponding mechanism on the watch case.
  • the CN2429852Y also discloses an external case of watch or pocket watch, comprising a ring case having a movement chamber, a watch lens over the movement chamber, and a back cover, the ring case being integrated with the watch lens.
  • Such case is made of such natural transparent materials as jade and carnelian after machining, which has a high cost. Furthermore, the result of being clear and transparent is hard to achieve due to the texture of the natural materials.
  • the object of the present invention is to provide an external watch case with lens made of artificial crystal glass.
  • an external watch case with lens of the present invention is used to form a case for a timepiece portion including at least a time display device, a watch movement and a watch adjusting mechanism, wherein said external watch case with lens is made of artificial crystal glass and comprises an outer lens portion and an outer case portion integrated together, the outer lens portion being disposed on the outer case portion and the whole timepiece portion being accommodated within the outer case portion.
  • the external watch case with lens made of artificial crystal glass has a clear and transparent appearance and can be processed to have tangent surfaces, be plated or engraved.
  • colored crystal glass material can be used, together with design of three-dimensional contouring, thereby resulting in more beautiful and colorful ornamentality.
  • the external watch case with lens of the present invention comprises an outer lens portion 1 and an outer case portion 2 integrated with each other.
  • the outer lens portion 1 is disposed on the outer case portion 2.
  • the structure of the timepiece portion is similar to the conventional structure in the prior arts, and comprises a lens 3, a dial 9, a time display device 4 for displaying time or assisting to display time, a watch adjusting mechanism 5, a watch movement 7, a watch case 6 and a back cover 8.
  • the timepiece portion is accommodated within the outer case portion 2.
  • the outer lens portion is designed corresponding to the lens 3.
  • an opening 10 is formed in the corresponding position on the outer case portion so as to expose the watch adjusting mechanism 5.
  • Said opening 10 may be an aperture formed on the side wall of the outer case portion 2 so as to allow the watch adjusting mechanism 5 to go through.
  • the practical timepiece portion has various structures and may have or not have any one of the aforementioned lens, dial, watch case and back cover.
  • the external watch case with lens of the present invention may also be applicable to such situations.
  • the external watch case with lens of the present invention has pairs of lug portions16, 16' and 17, 17' on the opposite side surfaces, which respectively has inner apertures 26, 26' and 27, 27' for mounting a spring bar 11 so as to be connected with the watch strap 12 or other accessories.
  • the watch adjusting mechanism 5 is positioned at the center of the back cover 8.
  • the embodiment differs from the embodiment shown in Figures 1 and 2 in that there is no opening on the side surface of the outer case portion 2.
  • the external watch case with lens of the present invention is made of artificial crystal glass, if tension is applied to the spring bar when the inner aperture of the lug engages with the spring bar end, stress concentration will be formed at the edges of the aperture with the spring bar end abutting against the inner aperture, thereby easily snapping or breaking the artificial crystal glass of this part.
  • the embodiment of the present invention shown in Figure 8 illustrates that the diameter of the inner aperture 27 is processed to be a little bit larger than the diameter of the spring bar end 14 and the edges of the inner aperture is rounded so as to distribute the stress uniformly.
  • Figure 9 shows another embodiment solving the problem of stress concentration, in which the inner aperture 27 is sleeved with a bush 15 before the spring bar end 14 engaging with the inner aperture 27.
  • Said bush 15 may have a shape of ring or flange and is made of metal or abrasion resistant plastic.
  • the external watch case with lens of the present invention may be manufactured by processing the two component parts as shown in Figures 5 and 6 or Figures 5 and 7 before combining them together or processing them integrally.
  • the difference between the outer lens portions of Figure 6 and Figure 7 lies in that: seen from the top downwardly, the outer lens portion of Figure 6 and the outer case portion of Figure 5 form an external watch case with lens without exposing the lug portions, while the outer lens portion of Figure 7 and the outer case portion of Figure 5 form an external watch case with lens with the lug portions being exposed.
  • the artificial crystal glass is processed to form individual outer case portion 2 and outer lens portion 1, which are then bonded together nicely using an adhesive (e.g. ultraviolet glue) to be transparent after solidification, ensuring that no bubbles are generated in the adhesive.
  • an adhesive e.g. ultraviolet glue
  • the external watch case and external lens with adhesive coated therebetween are placed in a box having reflective materials on the four sides and at the bottom, and the adhesive is irradiated and heated by ultraviolet lights so as to be solidified, whereby the external watch case with lens is formed.
  • the requirement of the present invention can be satisfied by using other appropriate methods to solidify the adhesive.
  • a mold for the integral external watch case with lens is prepared before the melted artificial crystal glass materials are poured into the mold, which forms a rough body of the external watch case with lens after solidification. Afterwards, the rough body is further processed to form the desired body of the external watch case with lens.
  • Coating may be applied on the surface of the external watch case with lens during the manufacturing process in order to enhance the hardness of the surface, to improve the abrasion resistance and to reduce the possibility of break.
  • the methods of applying the coating include (without limitation) plating, spraying or depositing.
  • the external watch case with lens of the present invention can be designed as various three dimensional shapes and processed to have a plurality of reflective tangent surfaces, or can use colored artificial crystal glass materials.
  • the external watch cases can be engraved or gilt to have various patterns. Said external watch cases with lens made of artificial crystal glass will be more gorgeous and colorful, having both practicability and improved ornamentality, providing the watch itself with more added value.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Adornments (AREA)
  • Mirrors, Picture Frames, Photograph Stands, And Related Fastening Devices (AREA)
EP06001729A 2005-11-11 2006-01-27 Boîtier de montre externe avec lentille constituée de cristal artificiel et procédé de fabrication de celui-ci Withdrawn EP1785785A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
HK05110074A HK1083430A2 (en) 2005-11-11 2005-11-11 External watch case with lens made of artificial crystal glass and the manufacturing method for the same

Publications (2)

Publication Number Publication Date
EP1785785A2 true EP1785785A2 (fr) 2007-05-16
EP1785785A3 EP1785785A3 (fr) 2007-08-15

Family

ID=36581697

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06001729A Withdrawn EP1785785A3 (fr) 2005-11-11 2006-01-27 Boîtier de montre externe avec lentille constituée de cristal artificiel et procédé de fabrication de celui-ci

Country Status (4)

Country Link
EP (1) EP1785785A3 (fr)
CN (1) CN1963697A (fr)
HK (1) HK1083430A2 (fr)
WO (1) WO2007054028A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009090527A1 (fr) * 2008-01-11 2009-07-23 Atto Holding Sarl Montre comportant une carrure usinée dans un bloc de matériau extra-dur
EP2902854A3 (fr) * 2014-01-30 2015-09-02 Seiko Epson Corporation Partie externe de montre, procédé de fabrication d'une telle partie et montre
EP2902855A3 (fr) * 2014-01-30 2015-09-02 Seiko Epson Corporation Partie externe de montre, procédé de fabrication d'une telle partie et montre

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100590552C (zh) * 2006-06-01 2010-02-17 杨带珍 具有独立表壳耳的人造水晶玻璃外表壳及其制造方法
CN109991828B (zh) * 2019-05-08 2023-07-18 东莞得利钟表有限公司 一种轻质高弹液态金属手表壳体及其生产方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2429852Y (zh) 2000-06-30 2001-05-09 王民洲 手表、挂表外壳

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH110141A (fr) * 1924-09-02 1925-06-01 Karlen Albert Pièce d'horlogerie.
FR858529A (fr) * 1939-07-31 1940-11-27 Boîtier pour montre et montre d'un tel boîtier
JPS57111260A (en) * 1980-12-29 1982-07-10 Seiko Epson Corp Hard case for watch
US4462697A (en) * 1982-03-04 1984-07-31 Timex Corporation Integral plastic strap and bezel for a wristwatch
CH649436GA3 (fr) * 1982-06-10 1985-05-31
CH653205GA3 (fr) * 1982-07-09 1985-12-31
CH649889GA3 (fr) * 1983-02-23 1985-06-28 Umberto Maglioli Montre-bracelet de forme allongée
JPS61119666A (ja) * 1984-11-16 1986-06-06 Seiko Instr & Electronics Ltd 腕時計用外装部品の表面処理方法
JPS62133181U (fr) * 1986-02-10 1987-08-22
CH681844B5 (fr) * 1991-07-03 1993-12-15 Smh Management Services Ag Montre-bracelet comportant une carrure-lunette, des cornes et un fond faits d'une pièce.
WO1998014839A1 (fr) * 1996-10-03 1998-04-09 Comadur S.A. Boite de montre comportant une enveloppe et un dispositif de support

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2429852Y (zh) 2000-06-30 2001-05-09 王民洲 手表、挂表外壳

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009090527A1 (fr) * 2008-01-11 2009-07-23 Atto Holding Sarl Montre comportant une carrure usinée dans un bloc de matériau extra-dur
RU2477508C2 (ru) * 2008-01-11 2013-03-10 Атто Холдинг Сарл Часы, содержащие средний корпус, выполненный механической обработкой в блоке из сверхтвердого материала
EP2902854A3 (fr) * 2014-01-30 2015-09-02 Seiko Epson Corporation Partie externe de montre, procédé de fabrication d'une telle partie et montre
EP2902855A3 (fr) * 2014-01-30 2015-09-02 Seiko Epson Corporation Partie externe de montre, procédé de fabrication d'une telle partie et montre
US9841732B2 (en) 2014-01-30 2017-12-12 Seiko Epson Corporation Watch external part, manufacturing method for watch external part, and watch

Also Published As

Publication number Publication date
WO2007054028A1 (fr) 2007-05-18
EP1785785A3 (fr) 2007-08-15
CN1963697A (zh) 2007-05-16
HK1083430A2 (en) 2006-06-30

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