EP0197518B1 - Boîte de montre - Google Patents

Boîte de montre Download PDF

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Publication number
EP0197518B1
EP0197518B1 EP86104591A EP86104591A EP0197518B1 EP 0197518 B1 EP0197518 B1 EP 0197518B1 EP 86104591 A EP86104591 A EP 86104591A EP 86104591 A EP86104591 A EP 86104591A EP 0197518 B1 EP0197518 B1 EP 0197518B1
Authority
EP
European Patent Office
Prior art keywords
crystal
caseband
supports
watch case
periphery
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
Application number
EP86104591A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0197518A1 (fr
Inventor
Paul Gogniat
Renato Scarinzi
Françoise Albrecht
Marco Scarinzi
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.)
Rado Uhren AG
Original Assignee
Rado Uhren AG
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 Rado Uhren AG filed Critical Rado Uhren AG
Publication of EP0197518A1 publication Critical patent/EP0197518A1/fr
Application granted granted Critical
Publication of EP0197518B1 publication Critical patent/EP0197518B1/fr
Expired 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
    • G04B39/00—Watch crystals; Fastening or sealing of crystals; Clock glasses
    • G04B39/02—Sealing crystals or glasses

Definitions

  • the present invention relates to a watch case and to a method of mounting this box which comprises a base, a middle part provided with a housing intended to receive a movement surmounted by a dial, a crystal whose peripheral zone covers the at least partially the middle part, an enlargement circle arranged between the movement and the middle part and comprising at least on its upper face a seal, at least two supports integral with the middle part, each of said supports forming with said middle part a groove in which the glass can be engaged and means for moving the enlargement circle that can be actuated from outside the box to compress said lining against the internal face of the glass and block said glass against said supports.
  • the grooves of the fixing members are defined by two facing surfaces between which the glass is engaged, the upper surface of the grooves pressing against the upper face of the glass.
  • the box further comprises means for applying the seal against the underside of the glass only after the ice has engaged in the grooves.
  • Document DE-U-1 837081 proposes to subject a spherical crystal to a flat middle.
  • the crystal is surrounded by an elastic bandage which rests on the middle in the manner of an articulated cover and held on it by means of a tab.
  • the bandage is presented as a transition piece to adapt the spherical shape of the crystal to the flat shape of the middle.
  • Patent GB-A-814187 also shows a means of adapting a spherical lens to a flat middle part, this means consisting in holding the lens on the middle part by means of a telescope hooked by clips to said middle part.
  • Patent CH-A-283122 shows a crystal whose upper face molded hot, is formed according to a sphere cap. This glass is provided with a peripheral heel which is sandwiched between a casing circle and a middle-bezel. In this construction, the glass is placed from the top, after which only the middle is placed.
  • a glass having the shape of a spherical cap is interesting on the one hand by that it gives the impression that the watch is very thin provided that said glass is mounted edge to edge with the middle part, at least on one part important of its circumference, and on the other hand because it presents a better resistance to shocks than if it were a flat glass.
  • the main aim of the present invention is therefore to propose a watch case the glass supports of which have come in one piece with the middle part and the crystal of which has, at least in its peripheral zone, a spherical shape with substantially constant thickness and the middle of which has the shape of a portion of a sphere whose radius is substantially equal to the radius of the inner face of the crystal in said peripheral zone so that, to mount the crystal on the middle, the crystal is slid laterally on the upper face of the middle part in a rotational movement around the center of curvature that said upper face has until the peripheral zone of said crystal is engaged in said grooves and then at least partially covers said middle part. Furthermore, the way in which the crystal is fixed to the middle part remains that which has been described in connection with the cited patent and which has the same advantages already explained.
  • FIGS. 1, 2 and 3 show a watch case according to a first embodiment of the invention.
  • This box has a middle part 1 inside which is housed a movement 2 surmounted by a dial 3. Above the dial appear the hands 4.
  • the box also has a crystal 5 whose peripheral area 6 completely covers the middle 1
  • An enlargement circle 7 is placed between movement 2 and the middle part 1.
  • Circle 7 bears on its upper part a seal 8.
  • the circle is arranged to include a second seal 9.
  • the box also has two supports 10 and 11 which face each other and which are integral with the middle part 1
  • the supports 10 and 11 each have a portion 12 which projects beyond the side walls of the middle part. In this portion 12 is made a hole 13 in which a bar 14 is threaded to hold in place a bracelet 15.
  • the supports 10 and 11 form with the middle part 1 grooves 16 in which the crystal 5 can be engaged by its peripheral zone 6
  • the crystal 5 also carries on its lower face a metallization 29 intended to hide from the gaze the upper edge 19 of the middle part, the lining 8 and the flange 30.
  • Figure 2 shows a support 10 made in one piece with the middle part 1 and a portion 12 used to attach a bracelet. Note, however, that the support 10 could be integral with the middle without forming a single piece with it. It could for example be fixed there by means of screws. Similarly, the support 10 could not include the portion 12 and the hole 13 but a simple connecting piece to join the support to the middle part.
  • the box also comprises means for moving the enlargement circle 7 which can be actuated from outside the box to compress the lining 8 against the internal face of the crystal 5. It can be seen in FIG. 2 that the box has a bottom 17 screwed to the middle 1 by screws 18.
  • the circle 7 is independent of the background. It is then necessary, to make the box waterproof from below, to provide the second lining 9. On the other hand, if the circle 7 were made in one piece with the bottom 17, the lining 9 would be superfluous.
  • the glass 5 has at least in its peripheral zone 6 a spherical shape of substantially constant thickness. In the figures, this sphericity is continuous over the entire ice. There could however be other embodiments where, beyond the peripheral zone 6, towards the center of the watch, the crystal would have another radius of curvature.
  • the upper face of the middle part referenced 19 has the shape of a portion of a sphere whose radius is substantially equal to the radius of the internal face 25 of the crystal belonging to the peripheral zone 6.
  • the lens once in place but not yet fixed, rests its inner spherical face on the top of the middle also having a spherical curvature of the same radius as that of the inner face 25 of the glass.
  • FIG. 4 To understand how the watch case according to the invention is assembled.
  • the middle part 1 is shown with its supports 10 and 11 which are integral with it.
  • the upper face 19 of the middle part has the shape of a portion of a sphere and forms with the supports 10 and 11 the grooves 16.
  • the crystal 5 is shown separated from the middle. Firstly, the internal face 25 of the crystal 5 is slid onto the upper face 19 of the middle in the direction of the arrow 20.
  • the glass is then animated with a rotating movement which naturally results from the sliding of the spherical surface. presented by the underside of the crystal on the portion of a sphere presented by the top of the middle 19.
  • the peripheral zones 6 of the crystal 5 are made to penetrate into the grooves 16 and this until the the circumference of the crystal coincides with the edge of the middle.
  • the seal is compressed (not shown in this figure) against the internal face of the crystal by actuating the means of displacement of the enlargement circle (not shown) to finally block the crystal 5 against the supports. 10 and 11.
  • the supports 10 and 11 extend on the upper face of the glass at least up to the right of the seal 8. This way of doing makes it possible to use very thin glass, of the order of 0.5 to 0.8 mm thick, because it avoids deformations which could arise at the location of the contact surfaces, which would result in poor sealing at the location of the edges of the glass not covered by the supports.
  • FIGS. 1 to 4 also shows that we are dealing with a shape box where the crystal is a spherical cap cut in a rectangular configuration cut to match the shape of the box.
  • the supports 10 and 11 are located at the place of rectilinear portions presented by the periphery of the glass.
  • Other shapes could be envisaged for the periphery of the box.
  • supports 10 and 11 are used which extend over a large part of the rectilinear portions presented by the periphery of the box.
  • the internal face 21 of the supports 10 and 11 also to have the shape of a portion of a sphere whose radius is substantially equal to the radius of the external peripheral zone of the ice-cap. This way of doing indeed allows a good distribution of the blocking forces acting on the ice. It also gives the object a pleasant aesthetic form.
  • Figure 5 is an alternative embodiment of the construction shown in Figure 2. It is distinguished only by the shape of the groove 22 formed on the one hand the support 23 whose inner face is bevelled and d 'other hand the portion of sphere presented by the top of the middle 19 as was already the case of the construction proposed in .figure 2.
  • the edge of the glass 5 is inclined to form the bevel 24
  • the circle 7 is moved upwards and the lining 8 is pressed against the internal face of the glass to then block the beveled glass against the bevel of support 23.
  • the mounting of the box is the same as that which has been explained in connection with the preceding figures where, firstly, the internal face of the glass is slid onto the upper face of the middle in a rotating movement until the circumference of the crystal coincides with the edge of the middle and where, in a second step, the glass is blocked against the supports of the middle.
  • FIG. 6 is a perspective view of a watch case according to the invention and according to a second embodiment.
  • This is a round box on which is fitted a crystal having the shape of a spherical cap with a circular periphery 26.
  • the middle part 1 the enlargement circle 7 in which is housed a housing the lining 8, the base 17 fixed to the middle of the screw means 18, the crystal 5, the movement 2 and the two supports facing each other which are in the form of claws 27 and 28.
  • the peripheral zone 6 completely covers the middle 1.
  • the supports 26 and 27 must be of small width and that the bottom of the grooves 16 must be straight to allow the overall diameter of the ice to pass during the introduction of it.
  • FIG. 6 clearly shows the very thin appearance of the watch case produced according to the means proposed by the present invention. This impression of thinness is given on the one hand by the fact that the crystal covers the middle part and on the other hand because the crystal is curved, which makes it possible to locate the peripheral zone of the crystal below the level of the dial 3.
  • Figure 7 is a top view of a watch case, partially mounted, according to a third embodiment of the invention. It has been said in relation to Figure 6 that the supports must be narrow in order to be able to introduce the ice.
  • the construction shown in Figure 7 shows two supports 37 and 38 extending over a large arc which makes it impossible to mount the glass as explained in connection with Figure 6.
  • a middle part made in two parts 30 and 31. For the assembly of the case, we begin by sliding the internal face of the crystal 5 onto the upper face of the middle part 30 according to the already mentioned rotating movement, until the glass comes to lodge at the bottom of the groove 16 formed by the support 37 and the middle 30.
  • the upper face of the middle 31 is slid under the glass in the direction of the arrow 39 until said glass fully penetrates into the groove formed in the middle part 31 and the support 38.
  • the two parts 30 and 31 are juxtaposed and touch by their edges 40 and 41.
  • the assembly is continued by introducing from below the circle sealing and movement and we fix the whole soli dement together by screwing the bottom on the middle as already explained in connection with the previous figures.
  • this way of doing also allows the mounting of a middle part which carries more than two supports.
  • a middle part which carries more than two supports.
  • This way of doing things can also be implemented for boxes of rectangular shape where each of the four edges of the glass is retained by a support, two serving to hang a bracelet and the other two serving as decoration.
  • the positioning of the glass by sliding in an arc of a circle is the most suitable means for said positioning.
  • the supports are secured to the middle by screws for example, we could first apply the ice on the middle from above and then fix the supports afterwards. This way of doing, however, requires two simultaneous actions which complicate the reassembly and which can lead to breakage or deformation of the crystal because it will be necessary to press it while the supports are fixed to the middle.
  • the supports will be fixed first and then only the ice will be put in place and then it will be fixed by the displacement means described.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Telephone Function (AREA)
  • Making Paper Articles (AREA)
EP86104591A 1985-04-09 1986-04-04 Boîte de montre Expired EP0197518B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH150785A CH660277GA3 (ko) 1985-04-09 1985-04-09
CH1507/85 1985-04-09

Publications (2)

Publication Number Publication Date
EP0197518A1 EP0197518A1 (fr) 1986-10-15
EP0197518B1 true EP0197518B1 (fr) 1989-11-29

Family

ID=4212056

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86104591A Expired EP0197518B1 (fr) 1985-04-09 1986-04-04 Boîte de montre

Country Status (7)

Country Link
US (1) US4727525A (ko)
EP (1) EP0197518B1 (ko)
JP (1) JPH0636040B2 (ko)
CH (1) CH660277GA3 (ko)
DE (1) DE3667212D1 (ko)
HK (1) HK55990A (ko)
SG (1) SG38990G (ko)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH671494B5 (ko) * 1988-02-09 1990-03-15 Phare Jean D Eve Sa Le
CH678254B5 (ko) * 1990-02-16 1992-02-28 Rado Montres Sa
DE19857860A1 (de) * 1998-12-15 2000-06-21 Mannesmann Vdo Ag Zeigerinstrument
EP1716460A2 (en) * 2004-02-20 2006-11-02 Daniel Lazaretnik Oval shaped timepieces and stem arrangement for watches
CN101484519B (zh) 2006-07-11 2012-06-06 住友橡胶工业株式会社 三角胶条用橡胶组合物及具有使用该组合物的三角胶条的轮胎
CN101488006B (zh) * 2008-05-13 2012-07-11 张和国 一种呈四面拱状玻璃的制备方法和应用
DE102015204619A1 (de) * 2015-03-13 2016-09-15 Levitation AG Verfahren zum Herstellen eines Uhrglases mit mindestens einem Schmuckstein

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB814187A (en) * 1956-06-18 1959-06-03 Smith & Sons Ltd S Improvements in indicating instruments
US1333194A (en) * 1918-12-12 1920-03-09 Louis E F Wachter Watch
US1536607A (en) * 1924-10-09 1925-05-05 Buhlman Herman Watchcase bezel
CH283122A (fr) * 1944-09-16 1952-05-31 Schmitz Werner Boîte de montre quadrilatérale.
US2792684A (en) * 1956-04-13 1957-05-21 Dinstman Hyman Crystal and bezel assembly
DE1837081U (de) * 1961-07-06 1961-08-31 Johann Jaeckle Metallwarenfabr Glasdeckel fuer uhren mit reif aus kunststoff.
CH643424B (fr) * 1981-03-30 Arnoux Cesar Sa Boite de montre.
CH643425B (fr) * 1981-06-01 Rado Montres Sa Boite de montre.
CH642810B (fr) * 1981-12-02 Rado Montres Sa Boite de montre.
US4558956A (en) * 1983-12-20 1985-12-17 Mondaine Watch Ltd. Water-tight watch
CH657246GA3 (ko) * 1984-07-12 1986-08-29

Also Published As

Publication number Publication date
JPH0636040B2 (ja) 1994-05-11
US4727525A (en) 1988-02-23
EP0197518A1 (fr) 1986-10-15
JPS61235788A (ja) 1986-10-21
CH660277GA3 (ko) 1987-04-15
SG38990G (en) 1990-09-07
DE3667212D1 (de) 1990-01-04
HK55990A (en) 1990-08-03

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