EP3454136A1 - Armbanduhrengehäuse, armbanduhr und montagekit für eine armbanduhr, die dieses umfasst - Google Patents

Armbanduhrengehäuse, armbanduhr und montagekit für eine armbanduhr, die dieses umfasst Download PDF

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Publication number
EP3454136A1
EP3454136A1 EP17190168.9A EP17190168A EP3454136A1 EP 3454136 A1 EP3454136 A1 EP 3454136A1 EP 17190168 A EP17190168 A EP 17190168A EP 3454136 A1 EP3454136 A1 EP 3454136A1
Authority
EP
European Patent Office
Prior art keywords
stretcher
watch case
bracelet
wristwatch
removably attached
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
Application number
EP17190168.9A
Other languages
English (en)
French (fr)
Inventor
Didier FINCK
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 Manufacture Horlogere Suisse
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 ETA SA Manufacture Horlogere Suisse filed Critical ETA SA Manufacture Horlogere Suisse
Priority to EP17190168.9A priority Critical patent/EP3454136A1/de
Priority to US16/104,166 priority patent/US11262704B2/en
Priority to JP2018158940A priority patent/JP6623264B2/ja
Priority to CN201811041630.8A priority patent/CN109471352B/zh
Publication of EP3454136A1 publication Critical patent/EP3454136A1/de
Pending 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
    • G04B37/14—Suspending devices, supports or stands for time-pieces insofar as they form part of the case
    • G04B37/1486—Arrangements for fixing to a bracelet
    • 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
    • G04B37/0008—Cases for pocket watches and wrist watches
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C5/00—Bracelets; Wrist-watch straps; Fastenings for bracelets or wrist-watch straps
    • A44C5/0053—Flexible straps
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C5/00—Bracelets; Wrist-watch straps; Fastenings for bracelets or wrist-watch straps
    • A44C5/14—Bracelets; Wrist-watch straps; Fastenings for bracelets or wrist-watch straps characterised by the way of fastening to a wrist-watch or the like

Definitions

  • the invention relates to a watch case for a wristwatch.
  • the invention also relates to a wristwatch comprising the watch case and a bracelet attached to the watch case.
  • the invention further relates to an assembly kit of the wristwatch, comprising the wristwatch and several bracelets.
  • Such a watch case is for example described in the patent application EP 0 386 621 A1 .
  • two support struts of the middle part are arranged on both sides of it.
  • the two stretchers extend beyond the space occupied by the middle part to serve as means of attachment to a bracelet.
  • two spring bars are fixed by their pivots in housings, generally formed by blind holes, formed in faces opposite the ends of the shafts, the bars being inserted each into an eyelet provided at one end of each strand of the bracelet.
  • the two stretchers are fixed permanently on the middle part, for example via screws.
  • a disadvantage of the proposed watch case is that it does not allow to change the bracelet without tools. It is indeed necessary, to make a bracelet change, to act on the pivots of the spring bars by means of a tool adapted, to retract and disengage from their homes to separate the bracelet from the watch case.
  • the elements of the frame consist of two shafts arranged on either side of the middle part of the watch case, and two members for attaching the shafts to the bracelet.
  • the two stretcher fixing members to the bracelet consist of two screws which connect the stretcher at their ends, and which each comprise at one end a knurled head which protrudes at the end. outside stretchers. Each screw is inserted inside an eyelet formed in one end of a strand of the bracelet, to ensure the attachment of the bracelet to the frame.
  • the object of the invention is therefore to provide a watch case for a wristwatch which makes it possible to change the bracelet without tools, in an easy and non-restrictive manner, and overcomes the aforementioned drawbacks of the state of the art.
  • the invention relates to a watch case for a wristwatch, which comprises the features mentioned in the independent claim 1.
  • An advantage of such a watch case according to the invention lies in the fact that a support stretcher of the caseband is removably attached directly thereto, and that the means for detachably attaching the strap to the stretcher is form when the stretcher is attached to the middle part.
  • the means of separating the stretcher, equipping a fastener of the stretcher to the middle part a user can easily change the bracelet without tools. Indeed, since the removable attachment means of the strap to the stretcher form when the stretcher is attached to the middle part, the bracelet is detached very easily reverse stretcher when it is detached from the middle part. This unique disassembly operation is extremely simple for the user, who can then change the bracelet by detaching the initial bracelet from the stretcher (s) and replacing it with a new bracelet. The user can then regularly change the wristband of his wristwatch, for example for aesthetic reasons or convenience.
  • the means for detachably attaching a bracelet to the stretcher comprise means for retaining the bracelet, able to be inserted into an eyelet or a similar device provided in one end of a strand of the bracelet. This facilitates the bracelet change operation once the removable stretcher disengaged, allowing easy release of the strap vis-à-vis the stretcher.
  • the watch case comprises two support struts of the middle part, arranged on either side of the middle part; one of the two stretchers forming the stretcher fixed removably to the middle part, the other stretcher being fixed for example permanently to the middle part.
  • each stretcher is provided with two L-shaped end portions, each L-shaped end portion of each stretcher forming one of said retaining means and comprising an axis capable of being inserted into an end strand of the bracelet. This further facilitates the operation of changing the bracelet once the removable stretcher disengaged, allowing easy release of the bracelet by simply sliding along the end axes of the shafts.
  • each stretcher came from a room with its end portions L. This makes it easier to machine stretchers and reduce the cost of manufacturing them.
  • the stretcher is attached to a sidewall of the middle part. This reduces the machining cost of the watch case.
  • the invention also relates to a wristwatch comprising the watch case described above, which comprises the features mentioned in claim 13.
  • a particular form of the wristwatch is defined in claim 14.
  • the invention also relates to a kit for assembling a wristwatch, comprising the wristwatch described above, and which comprises the features mentioned in claim 15.
  • the figure 1 represents a wristwatch 1, which comprises a watch case 2 and a bracelet 4 removably attached to the watch case 2.
  • the wristwatch 1 may for example belong to a kit (not shown) further comprising one or several additional bracelet (s).
  • additional bracelets constitute as many interchangeable wristbands for the wristwatch 1, which can be removably attached to the watch case 2.
  • the wristband 4 and the additional wristbands may for example consist of articulated metal links, a plastic material, or a flexible material such as leather.
  • the watch case 2 comprises a middle part 6 and at least one stretcher 7a, 7b of support of the caseband 6.
  • the watch case 2 comprises two support shafts 7a, 7b.
  • the watch case 2 further comprises means 8 for detachably attaching the strap 4 to the struts 7a, 7b, and a member 13 for detachably attaching one of the struts 7a, 7b to the caseband 6.
  • the watch case 2 contains a movement (not shown) of usual construction, for example a circular mechanical movement; as well as a dial 9 above which are displaced display means formed of needles 10.
  • the movement comprises a winding crown 11 which extends outside the watch case 2, through an orifice arranged in the middle part 6.
  • the caseband 6 is of annular shape and is closed by a bottom 12 in the lower part, by an ice 18 whose peripheral edge rests on an upper annular rim 16.
  • the ice 18 is for example an ice cream sapphire.
  • the configuration of the watch case is substantially circular.
  • the invention is not limited to such a configuration of the watch case, nor to the other arrangements described above for the middle part 6.
  • Each stretcher 7a, 7b is preferably attached to a sidewall of the middle part 6.
  • the middle part 6 comprises for example at least one groove 20a, 20b for receiving a stretcher 7a, 7b, hollowed in one of his flanks.
  • middle part 6 comprises two grooves 20a, 20b.
  • the depth of each groove 20a, 20b is such that the corresponding stretcher 7a, 7b is housed flush with the box in the groove 20a, 20b. This reduces the machining costs of the watch, while improving the aesthetic appearance of the latter.
  • Stretcher 7a, 7b are arranged on either side of middle part 6 and are oriented in the direction of a longitudinal direction corresponding generally to the direction of extension of strap 4.
  • the longitudinal direction substantially corresponds to the direction 6h - 12h of the watch case 2 when the bracelet 4 is attached to the watch case 2.
  • the shafts 7a, 7b protrude at 6 o'clock and 12 o'clock from the middle part 6 so that they can attach the bracelet 4 to the watch case 2, as will be described in more detail later.
  • a first stretcher 7a of the two stretcher is secured to the middle part 6 and is not intended to be detached from the middle part by the user as is the case for the second stretcher 7b for reasons which will appear hereinafter.
  • the first stretcher 7a has a central portion pierced at its center with a passage lumen of the winding crown 11.
  • the light (not shown) is aligned with the orifice of the middle part 6, so that the winding crown 11 extends through the middle 6 and the first stretcher 7a.
  • the latter further comprises at each end of its portion - arcuate in the illustrated example-- housed in the groove 20a formed in the sidewall of the middle a threaded hole 7c extending in a direction perpendicular to the plane of the 9.
  • the holes each receive a fixing screw 7d which passes through a hole 6a opening into the groove 20a of the middle part to secure the stretcher 7a to a right side of the middle part 6 ( figure 2b ).
  • the right flank is defined as the flank located on the right half of the dial 9, considered with respect to the 6h - 12h axis of the watch case 2.
  • a second stretcher 7b is removably attached to the middle part 6 via the fastening member 13.
  • the fastening member 13 is provided with means 24 for separating the second stretcher 7b from the middle part 6.
  • the means of uncoupling 24 are configured to allow a tool-free release of the second stretcher 7b of the middle part 6, as will be detailed later.
  • the fastener 13 is formed of a ring.
  • the ring 13 comprises a head 26 extended by a fastening rod 28.
  • the head 26 of the ring protrudes outside the watch case 2 and forms in this example the means of separating 24.
  • the second stretcher 7b has a central portion 22b pierced at its center with a passage 30 of the crown 13. Such a position of the light 30 in the center of the central portion 22b of the second stretcher 7b is however not limited in the context of the present invention .
  • the lumen 30 is aligned with an opening 32 formed on a left flank of the middle part 6.
  • the opening 32 receives the fixing rod 28 of the crown 13, allowing a firm attachment of the second stretcher 7b against the left flank of the middle part 6 when the ring 13 is engaged in the middle 6, through the second stretcher 7b.
  • the fixing rod 28 is a screw and the opening 32 is a threaded opening.
  • the fastening rod 28 is a bayonet and the opening 32 is adapted to cooperate with the bayonet to allow attachment of the second stretcher 7b on the middle part 6.
  • each stretcher 7a, 7b is of complementary shape to that of one of the grooves 20a, 20b of the middle part 6, so as to be received in the groove 20a, 20b.
  • the central portions of the shafts 7a, 7b are of arcuate form.
  • the invention is not limited to such a shape for the central portions of the shafts.
  • the second stretcher 7b comprises at least one element 34 for guiding and positioning the stretcher on the middle part 6, visible at the Figures 3 and 4 .
  • the second stretcher 7b comprises two guiding and positioning elements 34.
  • Each guiding and positioning element 34 is for example formed of a stud projecting from an inner face of the central portion 22b of the stretcher.
  • the caseband 6 comprises on its left flank, for example in the groove 20b formed on this flank, two orifices 36 for receiving the elements 34.
  • each element 34 is arranged at one end of the central portion 22b of the second stretcher 7b, and each receiving orifice 36 is arranged at a corresponding position on the middle part 6.
  • this location of the elements 34 and the orifices 36, as well as their number is in no way limiting in the context of the present invention.
  • the means 8 for detachably attaching the bracelet 4 to the struts 7a, 7b comprise means 42 for retaining the strap 4, inserted in eyelets 40a provided in the ends 40 of the strap 4 intended to be fixed to the box.
  • the bracelet is a flexible bracelet whose eyelets 40a conventionally define a through passage extending from one side edge to the other of the bracelet strand, but it goes without saying that according to a variant the passage defining the eyelets 40a the bracelet is not through, as long as its length is able to receive the retaining means of the bracelet.
  • each stretcher 7a, 7b is provided with two “L” end portions.
  • the retaining means 42 are thus formed of “L” end portions.
  • each stretcher 7a, 7b has come in one piece with its two "L” end portions 42.
  • Each "L" end portion 42 comprises an axis 44 inserted into the eyelet 40a provided in the ends 40 of the wristband 4.
  • Each axis 44 is substantially parallel to the axis 3h-9h of the watch case 2 when the Stretcher 7a, 7b corresponding is attached to the middle 6.
  • each strand 40 of the bracelet 4 receives in its eyelet 40a two opposite axes 44 each belonging to one of the shafts 7a, 7b.
  • This configuration of the axes 44 in the strands 40 thus provides a removable fastener 8 of the strap 4 to the struts 7a, 7b, the fastener 8 being formed when the second stretcher 7b is fixed to the middle part 6.
  • the opposite axes 44 inside the same eyelet 40a of a strand of the bracelet 4 have a length such that a small space 46 is formed between the free ends of the axes 44 when the second stretcher 7b is attached to the middle 6 while maintaining a length of penetration of the axes sufficient to ensure a reliable behavior of the bracelet 4 on the retaining means when the bracelet 4 is subjected in particular to a tensile force along the longitudinal axis of the bracelet.
  • the material of the bracelet is flexible will advantageously equip the eyelets 40a of the bracelet with rigid reinforcing tubes.
  • the outer surface of the pins 44 is treated so as to obtain a coefficient of friction such that it allows a predetermined clearance of the axes 44 in the eyelets 40a of the strands of the bracelet 4.
  • a treatment is for example obtained via the deposit a coating layer on the axes 44, such a coating layer may for example be a layer of polytetrafluoroethylene (PTFE). This makes it easier to assemble and dismount the bracelet 4.
  • PTFE polytetrafluoroethylene
  • a user When a user wishes to separate the bracelet 4 from the watch case 2, for example to change the bracelet, it starts by actuating the means 24 for separating the second stretcher 7b.
  • the user unscrews at first the head 26 of the ring 13, which disengages the second stretcher 7b of the groove 20b in the direction of the arrow F1.
  • This operation makes it possible to separate the second stretcher 7b from the middle part 6.
  • the means 8 for detachably attaching the strap 4 to the struts 7a, 7b partly disengage, by sliding the end axes 44 of the second stretcher 7b out of strands 40 of the bracelet 4.
  • the user can then advantageously replace the bracelet 4 by a new bracelet, then attach it to the stretchers 7a, 7b by reversing the sequence of operations described above.
  • the watch case according to the invention has been made with reference to two support struts of the middle part.
  • this particular number of stretchers is in no way limiting in the context of the present invention.
  • the watch case may have only one support stretcher of the middle part, which then forms the removable stretcher.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
  • Adornments (AREA)
EP17190168.9A 2017-09-08 2017-09-08 Armbanduhrengehäuse, armbanduhr und montagekit für eine armbanduhr, die dieses umfasst Pending EP3454136A1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP17190168.9A EP3454136A1 (de) 2017-09-08 2017-09-08 Armbanduhrengehäuse, armbanduhr und montagekit für eine armbanduhr, die dieses umfasst
US16/104,166 US11262704B2 (en) 2017-09-08 2018-08-17 Watch case, wristwatch and wristwatch assembly kit comprising it
JP2018158940A JP6623264B2 (ja) 2017-09-08 2018-08-28 時計ケース、腕時計、及び時計ケースを備える腕時計組立てキット
CN201811041630.8A CN109471352B (zh) 2017-09-08 2018-09-07 表壳、包括其的腕表和腕表套件

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17190168.9A EP3454136A1 (de) 2017-09-08 2017-09-08 Armbanduhrengehäuse, armbanduhr und montagekit für eine armbanduhr, die dieses umfasst

Publications (1)

Publication Number Publication Date
EP3454136A1 true EP3454136A1 (de) 2019-03-13

Family

ID=59829294

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17190168.9A Pending EP3454136A1 (de) 2017-09-08 2017-09-08 Armbanduhrengehäuse, armbanduhr und montagekit für eine armbanduhr, die dieses umfasst

Country Status (4)

Country Link
US (1) US11262704B2 (de)
EP (1) EP3454136A1 (de)
JP (1) JP6623264B2 (de)
CN (1) CN109471352B (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3560371B1 (de) * 2018-04-26 2023-12-27 Rolex Sa Vorrichtung zum befestigen eines armbands auf einem uhrengehäuse
CN112075729A (zh) * 2019-06-14 2020-12-15 Oppo广东移动通信有限公司 可穿戴设备
USD954565S1 (en) * 2020-04-17 2022-06-14 Parmigiani Fleurier SA Watch

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH124791A (de) * 1927-04-05 1928-03-01 Frank Farr Armbanduhr.
US2559238A (en) * 1946-06-04 1951-07-03 Wallin Edward Watch band attachment
CH513453A (fr) 1968-05-01 1971-04-15 Ulrich Klingenberg Hans Montre-bracelet
JPS6399292U (de) * 1986-12-18 1988-06-27
EP0386621A1 (de) 1989-03-07 1990-09-12 Eta SA Fabriques d'Ebauches Uhr mit einer durch zwei Längsträger getragenen Werkplatten- und Mittelteil-Einheit
DE10305305A1 (de) * 2003-02-10 2004-09-02 Junghans Uhren Gmbh Gehäusemittelteil für eine Armbanduhr sowie Verfahren zu dessen Herstellung

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3897612A (en) * 1974-07-25 1975-08-05 Textron Inc End attachment for watch bands and self-contained component for use in making the same
JP2575903Y2 (ja) * 1993-08-31 1998-07-02 シチズン時計株式会社 バンド付時計
EP1048991A1 (de) * 1999-04-28 2000-11-02 de Grisogono Holding SA Vorrichtung zum Auswechseln von Uhrarmbändern
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
JP5311056B2 (ja) * 2007-07-31 2013-10-09 並木精密宝石株式会社 腕時計ケース
US8978942B2 (en) * 2010-11-10 2015-03-17 Brian K. Bell Quick release watch band
US10085523B2 (en) * 2014-08-11 2018-10-02 Apple Inc. Attachment system for an electronic device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH124791A (de) * 1927-04-05 1928-03-01 Frank Farr Armbanduhr.
US2559238A (en) * 1946-06-04 1951-07-03 Wallin Edward Watch band attachment
CH513453A (fr) 1968-05-01 1971-04-15 Ulrich Klingenberg Hans Montre-bracelet
JPS6399292U (de) * 1986-12-18 1988-06-27
EP0386621A1 (de) 1989-03-07 1990-09-12 Eta SA Fabriques d'Ebauches Uhr mit einer durch zwei Längsträger getragenen Werkplatten- und Mittelteil-Einheit
DE10305305A1 (de) * 2003-02-10 2004-09-02 Junghans Uhren Gmbh Gehäusemittelteil für eine Armbanduhr sowie Verfahren zu dessen Herstellung

Also Published As

Publication number Publication date
CN109471352B (zh) 2020-10-27
CN109471352A (zh) 2019-03-15
US11262704B2 (en) 2022-03-01
US20190079457A1 (en) 2019-03-14
JP2019049546A (ja) 2019-03-28
JP6623264B2 (ja) 2019-12-18

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