EP0272515B1 - Couvercle de pile pour boîte de montre - Google Patents

Couvercle de pile pour boîte de montre Download PDF

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Publication number
EP0272515B1
EP0272515B1 EP87117927A EP87117927A EP0272515B1 EP 0272515 B1 EP0272515 B1 EP 0272515B1 EP 87117927 A EP87117927 A EP 87117927A EP 87117927 A EP87117927 A EP 87117927A EP 0272515 B1 EP0272515 B1 EP 0272515B1
Authority
EP
European Patent Office
Prior art keywords
cap
movement
fact
watch
caseband
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 - Lifetime
Application number
EP87117927A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0272515A1 (fr
Inventor
Cyril Vuilleumier
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.)
ETA SA Manufacture Horlogere Suisse
Original Assignee
Eta SA Fabriques dEbauches
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
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Application filed by Eta SA Fabriques dEbauches filed Critical Eta SA Fabriques dEbauches
Publication of EP0272515A1 publication Critical patent/EP0272515A1/fr
Application granted granted Critical
Publication of EP0272515B1 publication Critical patent/EP0272515B1/fr
Anticipated expiration legal-status Critical
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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
    • 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
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C10/00—Arrangements of electric power supplies in time pieces

Definitions

  • the present invention relates to a wristwatch box comprising a backband made in one piece with an enlarging circle equipped with supports for supporting a movement mounted by the top of the middle and provided with needles for displaying the time, said movement being powered by a battery, a circular opening made in the bottom of said case-back by which the battery can be inserted or removed and a removable cover mounted leaktight by means of a gasket on said bottom for close said opening.
  • the first embodiment is described, for example, in patent EP-B-0 024 364 (US 4 362 396).
  • the movement is mounted by the bottom of the middle, itself closed by a screwed back or subject to pressure.
  • the bottom must be removed to change the battery and this operation can only be done by a skilled person equipped with special tools and who, at the same time, will take care to retain the movement to prevent it from escapes from the middle.
  • This execution has the advantage of taking up little space in thickness since the back is hung on the middle in a place located above the underside of the movement. But the battery is not accessible to everyone, as we have just seen, which can be felt as a disadvantage especially today where certain cheap watches commonly offer this possibility.
  • the second embodiment is exposed for example in utility models JP-1 131 545 and JP-1 231 593.
  • the watch case is equipped with a case-back which is sometimes called a monocoque box, where the movement is mounted from the top of the middle.
  • the documents cited show that the middle is equipped with an enlargement circle and supports to support the movement.
  • an opening is made which is just sufficient to change the battery. This opening is closed by a cover screwed into the bottom.
  • This second embodiment also has the advantage of offering a bottom which takes up little space in thickness.
  • the battery cover can be removed by any user and without the need for special tools.
  • the cover has a slot into which a coin can be inserted.
  • the detail of such a construction is shown in patent GB-A-1 408 610. It is immediately seen however that this cover takes up a large space in height first because of the space which must be provided for the receiving slot the coin, then because of the thickness that must be made for the thread and the gasket. Finally this way of doing things is unsightly due to the wart that the cover presents.
  • the document GB-A-1,568,475 proposes a large diameter cover provided with a notch by which the cover can be removed, for example by means of a coin. .
  • the notch is no longer located under the stack but next to it so that the thickness on stack of the movement is not increased by the presence of this notch.
  • the position of said notch is such that it requires a free space between the movement and the inner side of the cover, a space which ultimately results in an increase in the thickness of the watch in all cases where the thickness of the stack is substantially within the thickness of the movement.
  • no space is provided between the cover and the movement by the fact that the means for unlocking the cover are located outside the periphery of this movement, which has the effect to minimize the thickness of the watch.
  • the present invention proposes to eliminate the drawbacks listed above by the means which appear in claim 1.
  • the watch case has a case-back 1 made in one piece with an enlarging circle 2 equipped with supports 3 to support a movement 4.
  • the movement causes the hands to 5 hours and 6 minutes sketched here in mixed lines.
  • These needles surmount a dial not shown and which is housed in the opening delimited by the wall 7.
  • a bezel provided with a crystal according to methods known from the prior art. Dial, flange, bezel and crystal have not been shown here as they are not affected by the present invention.
  • Movement 4, which generally includes a stepping motor controlled by a quartz, is powered by a battery 8 which is outlined by the dashed lines in FIG. 1.
  • a box of the type which has just been described, with mounting of the movement from above may have a bottom made in one piece with the middle part. In this bottom is then formed an opening to allow the change of the battery, opening which is closed by a cover.
  • This is what is actually found in the construction presented in FIG. 1 where the removal of the cover referenced 9 gives direct access to the battery 8.
  • the cover 9 of the present invention covers the entire movement 4 instead of covering only the single battery contained in this movement.
  • the removable cover 9 is mounted leaktight on the backband 1 by means of a sealing gasket 10, the latter being pinched between the cover 9 and a groove 16 formed in the bottom 11 of the backband 1 when the cover is in place.
  • FIG. 2 is a bottom view of the case back 1 drawn on a scale reduced by half compared to the scale used for FIG. 1, we see that the opening 12 made in the backband 1 is circular, that. this opening is coaxial with the axis of the hands 5, 6 and has a diameter substantially larger than the diameter of the circle 13 circumscribing the movement 8, the circle 13 being shown in phantom in Figure 2.
  • Figure 2 also shows the enlargement circle 2 equipped with supports 3 against which the movement comes to bear which is not shown here but which is imaginable by the outline 14 of the opening in which it enters and by the stack 8 sketched in broken lines. This is a barrel movement, which explains the oblong shape of the opening 14. We could thus have a round movement, in which case the opening 14 would merge with the circumscribed circle 13.
  • the cover 9 is made integral with the backband by fixing means situated outside the circumscribed circle 13 and at a level situated above the lower face 15 of the movement 4. These fixing means, so to speak enveloping the movement in its periphery, bring the fixing of the cover in the thickness of the middle and no longer in the thickness of the bottom as was provided in the prior art discussed above, hence the obvious gain in space in the thickness watch overall.
  • the cover 9 carries a stiffening circle 17 made in one piece with it, this circle comprising at least two bent wings 18 cooperating with as many notched flanges 19 formed in the backband 1.
  • FIG. 2 shows a case back 1 provided with three arched inlets 20, 21 and 22 and three notched edges 19, 23 and 24. Each of the notched edges has a gently sloping entrance followed by a flat, the passage of a plane to the other being represented by the dotted line 25.
  • the respective wings 18 of the cover 9 are introduced into the arched inlets 20, 21 and 22 turns the cover clockwise by compressing the lining 10 in its housing 16.
  • the wings 18 then engage on the notched edges referenced respectively 19, 23 and 24 until they abut against the edges referenced respectively 26 , 27 and 28.
  • the wing 18 cooperates with the flange 19 at a level located within the thickness of the movement 4.
  • the cover further carries means capable of being actuated by the wearer of the watch to open and close said cover.
  • these means consist of two notches 29 and 30 formed on the outside of the cover 9. These notches can be cylindrical or of any shape and are arranged on the same diameter.
  • FIG. 1 also shows that the notches 29 and 30 are located opposite the fixing means carried on the inner side of the cover or, if preferred, opposite the stiffening circle 17 and this for obvious reasons of solidity and of the cover. In the notches can engage the ends of the branches of a U-shaped key not shown in the drawing and delivered to the purchase of the watch.
  • FIG. 3 shows such a solution.
  • the watch case the bottom 11 of which is visible and the cover 9 secured to this bottom, is equipped with a bracelet represented by its strands 40 and 41.
  • the strand 40 comprises a loop 42 provided with a pin 44 which cooperates with one of the holes 43 of the strand 41.
  • each branch of the loop 42 has an asperity 45, 48 intended to cooperate with a notch 29, 30 formed in the cover 9.
  • the asperities 45, 48 are located in the extension of the branches of the loop 42.
  • Figure 4 shows another embodiment of the key forming an integral part of the strap buckle.
  • the roughness is no longer located in the extension of the branches of the loop but perpendicular to said branches in the form of pins referenced 46 and 47.
  • Figures 5, 6a and 6b show a second embodiment of the invention.
  • the cover 9 secured in the bottom 11 is devoid of the notches 29, 30 which characterized the first embodiment of the invention.
  • the cover 9 carries grooves 50 arranged radially on the outside of said cover and in the periphery of the latter. These grooves or grooves, arranged in bumps ( Figures 6a) or hollow ( Figure 6b) on the cover allow you to set up or remove this cover simply with your fingers. In this embodiment, a key is no longer necessary.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromechanical Clocks (AREA)
  • Electric Clocks (AREA)
  • Battery Mounting, Suspending (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
EP87117927A 1986-12-17 1987-12-04 Couvercle de pile pour boîte de montre Expired - Lifetime EP0272515B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH503086A CH666783GA3 (ja) 1986-12-17 1986-12-17
CH5030/86 1986-12-17

Publications (2)

Publication Number Publication Date
EP0272515A1 EP0272515A1 (fr) 1988-06-29
EP0272515B1 true EP0272515B1 (fr) 1990-02-28

Family

ID=4286745

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87117927A Expired - Lifetime EP0272515B1 (fr) 1986-12-17 1987-12-04 Couvercle de pile pour boîte de montre

Country Status (5)

Country Link
US (1) US4845694A (ja)
EP (1) EP0272515B1 (ja)
JP (1) JPS63167292A (ja)
CH (1) CH666783GA3 (ja)
DE (1) DE3761788D1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9618904B2 (en) 2015-02-27 2017-04-11 Eta Sa Manufacture Horlogere Suisse Plastic or electroformed watch case with removable crystal

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH679357B5 (ja) * 1990-06-07 1992-08-14 Ebauchesfabrik Eta Ag
JPH04203998A (ja) * 1990-11-29 1992-07-24 Matsushita Electric Ind Co Ltd バンド付携帯機器
US5528239A (en) * 1992-04-17 1996-06-18 Crystal Semiconductor Corporation Low noise transmission of output data from a delta-sigma modulator
CH685526B5 (fr) * 1993-12-23 1996-02-15 Smh Management Services Ag Boîte de montre.
EP1434114B1 (fr) 2002-12-23 2010-04-07 Asulab S.A. Montre dont la boîte comporte un fond ou couvercle avec fixation à baionnette pour ouverture manuelle
IT1393323B1 (it) * 2009-03-20 2012-04-20 Blue Diamond S R L Orologio da polso
IT201800003473A1 (it) * 2018-03-13 2019-09-13 Cressi Sub Spa Sportello di chiusura del vano batteria delle apparecchiature per uso subacqueo con dispositivo di chiusura munito di agganci esterni
CN116249462A (zh) 2020-06-16 2023-06-09 汤姆福特国际有限责任公司 单体式表带

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH205592A (fr) * 1938-07-18 1939-06-30 Alpina Union Horlogere S A Boîte de montre.
FR912019A (fr) * 1944-03-27 1946-07-26 Boîte de montre étanche
CH319291A (fr) * 1954-09-08 1957-02-15 Piquerez Sa Ervin Montre étanche munie d'un remontoir automatique
CH374937A (fr) * 1961-10-19 1964-03-13 Boites De Montres S Graber S A Boîte de montre étanche
CH537611A (fr) * 1969-07-15 1973-02-15 Voumard Machines Co Sa Bouchon pour la fermeture du compartiment de la source de courant d'une montre électrique
JPS49101776U (ja) * 1972-12-22 1974-09-02
JPS53110563A (en) * 1977-03-08 1978-09-27 Citizen Watch Co Ltd Electronic wristwatch
JPS56150377A (en) * 1980-04-24 1981-11-20 Citizen Watch Co Ltd Open-close device of wristwatch case
US4397567A (en) * 1980-11-06 1983-08-09 Timex Corporation Timepiece construction with a caseback removable using a credit card
JPS5826290A (ja) * 1981-08-07 1983-02-16 Tenryu Kogyo Kk 携帯時計用ウラブタの製造方法
JPS5852588A (ja) * 1981-09-24 1983-03-28 Seiko Epson Corp 時計用外装部品
JPS59636U (ja) * 1982-06-28 1984-01-05 株式会社クボタ 脱穀排ワラ結束装置
DE8306359U1 (ja) * 1983-03-05 1989-05-24 Gebrueder Junghans Gmbh, 7230 Schramberg, De

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9618904B2 (en) 2015-02-27 2017-04-11 Eta Sa Manufacture Horlogere Suisse Plastic or electroformed watch case with removable crystal

Also Published As

Publication number Publication date
EP0272515A1 (fr) 1988-06-29
JPH0574030B2 (ja) 1993-10-15
DE3761788D1 (de) 1990-04-05
US4845694A (en) 1989-07-04
JPS63167292A (ja) 1988-07-11
CH666783GA3 (ja) 1988-08-31

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