EP1916577A2 - Einschraubkrone - Google Patents

Einschraubkrone Download PDF

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Publication number
EP1916577A2
EP1916577A2 EP07118965A EP07118965A EP1916577A2 EP 1916577 A2 EP1916577 A2 EP 1916577A2 EP 07118965 A EP07118965 A EP 07118965A EP 07118965 A EP07118965 A EP 07118965A EP 1916577 A2 EP1916577 A2 EP 1916577A2
Authority
EP
European Patent Office
Prior art keywords
head
piston
tube
crown
thread
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Withdrawn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
EP07118965A
Other languages
English (en)
French (fr)
Other versions
EP1916577A3 (de
Inventor
Laurent Coste
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.)
Pibor Iso SA
Original Assignee
Pibor Iso SA
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 Pibor Iso SA filed Critical Pibor Iso SA
Publication of EP1916577A2 publication Critical patent/EP1916577A2/de
Publication of EP1916577A3 publication Critical patent/EP1916577A3/de
Withdrawn legal-status Critical Current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
    • G04B37/08—Hermetic sealing of openings, joints, passages or slits
    • G04B37/10—Hermetic sealing of openings, joints, passages or slits of winding stems
    • G04B37/103—Hermetic sealing of openings, joints, passages or slits of winding stems by screwing the crown onto the case

Definitions

  • the present invention relates to the field of watchmaking and relates, more particularly to a screw-type watch crown, such as a winding crown.
  • the head 12 may have a screwed state on the thread 11 of the screwing tube 10 when the user does not need to act on the crown.
  • the screwed state is defined by any engagement of the threaded portion 13 in the thread 11.
  • the user unscrews the head 12, which, under the action of the spring member 18, engages the piston 14 and the control rod.
  • the head 12 is thus in an unscrewed state and occupies its first active position which is generally that of reassembly.
  • the unscrewed state is defined by the absence of engagement between the threaded portion 13 in the thread 11.
  • crown In some military or sports timepieces, it also happens that the crown is protected by a crown cover device which can make it more difficult action on the head 12. In particular, it can be difficult for the wearer to perform the combination of thrust actions and rotation of the head.
  • the object of the present invention is to provide a ring whose actuation is facilitated so that it can be used advantageously in parts equipped with crown cover devices.
  • the invention relates to a screw-in crown as described in the second paragraph of the present application, arranged so that the spring member is at its maximum length when the threaded portion of the head is in contact. threading of the screwing tube.
  • the minimum length of the spring member is defined as that which it occupies when the head is completely screwed.
  • At least one abutment element is arranged with reference to the spring member to determine its maximum length, a connecting member between the head and the spring is movable in a stroke defined by the abutment element and the minimum position spring.
  • the stroke of the head in its screwed state is greater than the stroke of the connecting member.
  • the stroke of the head in its screwed state is the distance it travels between its maximum screwing and its minimal screwing.
  • FIG. 2 shows a sectional view of a screw-in crown according to the invention.
  • the ring according to the invention comprises a screwing tube 10 which presents a first portion 10a intended to be fixed in a watch case 20 and a second portion 10b provided with a thread 11 and intended to project from the box.
  • This thread 11 is provided to cooperate with a threaded portion 13 of the inner side walls of a head 12 which forms the gripping portion of the crown.
  • the inner part of the head also has a bottom 15.
  • the ring further comprises a piston 14 for kinematically connecting the head 12 to a control rod of the watch movement housed in the box 20.
  • This control rod is generally the winding stem which allows the wearer to perform, at the same time, the reassembly of the movement and some corrections, in particular of the hour and the date if the movement comprises this function.
  • Seals 22 may be arranged, in a conventional manner, between the screwing tube 10 and the tube 16, on the one hand, and at the junction between the tube 16 and the head 12, on the other hand.
  • a spring 18 is mounted on the rod 24a which guides it.
  • a shell 26 having the shape of a cylinder with a partially open bottom is mounted on the rod 24a, the latter being fitted into the opening of the bottom. It is inserted between the head of the screw 24b and the spring 18 and is oriented towards the head 12. More particularly, the screw 24 serves as a stop element, the head 24b having a bearing zone against which the spring 18 supports the ferrule 26.
  • the maximum length of the spring 18 is defined by the distance between the end of the piston 14 and the collar 26 and can be modulated by the screwing of the screw 24. Note that the head of the screw is positioned with reference to the screwing tube 10 so that the shell can cooperate with the bottom of the head 12 to compress the spring 18.
  • the spring 18 is arranged to exert a force pushing the ferrule 26 against the head 12 and tending to move the latter from the piston 14.
  • the spring 18 ensures the engagement of the head 12 and the control rod when the head is in its unscrewed state.
  • the dimensions of the shell 26 and the screwing tube 10, on the one hand, and the dimensions and the positioning of the thread 11 and the threaded portion 13, on the other hand, are defined so that the head 12 can evolve, when unscrewed, between a first and a second position, without compressing the spring 18. This can be achieved in different ways and playing on the dimensions and positioning of the elements mentioned above.
  • the spring when unscrewing the head 12, the spring reaches its maximum length by putting the ferrule 26 in abutment against the screw head 24b, while the head 12 is still engaged with the screwing tube 10.
  • the race of the head in its screwed state is therefore greater than the stroke of the ferrule.
  • the threaded portion 13 of the head 12 comes into contact with the thread 11 of the screwing tube 10, ready to be screwed, while the spring 18 is still at its maximum length and has not yet been compressed.
  • the stroke of the head 12 to move the rod from its second position to its first position must be less than the total stroke that the head 12 can perform in the unscrewed state, that is to say it must be less than the maximum distance that can separate the threaded portion 13 of the head 12 and the thread 11 of the screwing tube 10.
  • the device described above is advantageous.
  • the head 12 When the user presses the head 12 to bring it closer to the box 20, it moves in a first step until it comes into contact with the shell 26, thus filling the gap.
  • the head 12 compresses the spring 18, as shown in Figure 6, to a certain threshold where the force reached is sufficient to push the rod into its first active position.
  • the crown is then substantially in the position of FIG.
  • the user can then rotate the head 12 so as to engage the threaded portion 13 of the head 12 on the thread 11 of the screwing tube 10, without having to simultaneously press on it.
  • the ferrule 26 not being in contact with the head 12, the spring 18 exerts no force at this time against the head 12. Only later, during the screwing of the head 12, that it comes into contact with the ferrule 26 and compresses the spring 18.
  • the user has only continue to print a rotational movement to the head 12, the advance generated by the screwing is sufficient to compress the spring back and return to the screwed position.
  • this embodiment does not require to make that very little modification compared to existing wreaths.
  • the piston 14 has a hollow cylinder shape with a partially open bottom, relatively similar to the ferrule 26 above .
  • a rod 28 provided with a head 30 is disposed inside the tube 16 through the piston 14, the head 30 cooperating with the bottom of the piston which serves as a stop element.
  • the free end of the rod 28 disposed inside the tube 16 receives a retaining ring 32 which is integral therewith. This serves as a connecting member between the head and the spring. It is advantageously removable and can be screwed onto the rod 28.
  • the spring 18 is, as in the first embodiment, mounted on the rod 28 and is supported on one side against the piston 14 and, the other side, against the retaining ring 32 sized to also form an element of the abutment.
  • the spring tension can be adjusted by acting on the position of the ring 32.
  • the dimensions of the retaining ring 32, the rod 28 and the screwing tube 10, on the one hand, and the dimensions and the positioning of the thread 11 and the threaded portion 13, d on the other hand, are defined so that the head 12 can evolve, when unscrewed, between a first and a second position, without compressing the spring.
  • the spring 18 reaches its maximum length by putting the head 30 of the rod 28 in abutment against the bottom of the piston, while the head 12 is still engaged with the screwing tube 10
  • the stroke of the head in its screwed state is therefore greater than the stroke of the retaining ring.
  • the threaded portion 13 of the head 12 is in contact with the thread 11 of the screwing tube 10, ready to be screwed, while the spring 18 is still at its maximum length and has not yet been compressed.
  • Such a device is advantageous because it requires less space than that of the first embodiment. Indeed, the space required for the displacement of the movable element (the ferrule in the first example, the rod in the second example) allowing compression of the spring, is formed in the piston, more particularly in a part which is generally dig. It is thus possible to use the invention with a short piston, which is more difficult with the first embodiment, in particular to secure the screw and the piston.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Springs (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
EP07118965A 2006-10-27 2007-10-22 Einschraubkrone Withdrawn EP1916577A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH01718/06A CH703671B1 (fr) 2006-10-27 2006-10-27 Couronne à visser et procédé de vissage d'une telle couronne.

Publications (2)

Publication Number Publication Date
EP1916577A2 true EP1916577A2 (de) 2008-04-30
EP1916577A3 EP1916577A3 (de) 2009-08-05

Family

ID=38235712

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07118965A Withdrawn EP1916577A3 (de) 2006-10-27 2007-10-22 Einschraubkrone

Country Status (2)

Country Link
EP (1) EP1916577A3 (de)
CH (1) CH703671B1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2166420A2 (de) * 2008-09-22 2010-03-24 Boninchi S.A. Screwed crown with valve or integrated pushbutton
CN108572541A (zh) * 2017-03-13 2018-09-25 精工电子有限公司 带柄头锁定机构的钟表
CN115390418A (zh) * 2021-05-19 2022-11-25 梅科股份公司 用于控制具有触觉反馈的钟表机芯的装置和包括这种装置的时计，特别是表
CN115847092A (zh) * 2023-02-03 2023-03-28 天王电子（深圳）有限公司 一种手表表壳底盖智能装配机

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH204911A (fr) * 1937-08-20 1939-05-31 Colomb Henri Montre à remontoir étanche.
CH331413A (fr) * 1955-06-13 1958-07-15 Piquerez Sa Ervin Pièce d'horlogerie étanche

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1453026A (fr) * 1965-11-04 1966-04-15 Gunzinger Freres S A Dispositif de remontage et de mise à l'heure d'une montre étanche
CH608160B (fr) * 1976-03-23 Boninchi Sa Couronne etanche de remontoir.
JPS6042393Y2 (ja) * 1980-01-24 1985-12-26 シチズン時計株式会社 クオ−ツ腕時計の防水リユウズ装置
EP1554635B1 (de) * 2002-10-04 2006-07-26 Ks 22 S.A. Betätigungsvorrichtung für uhren
DE60308139T2 (de) * 2003-03-13 2007-08-09 Richemont International S.A. Wasserdichter Drücker

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH204911A (fr) * 1937-08-20 1939-05-31 Colomb Henri Montre à remontoir étanche.
CH331413A (fr) * 1955-06-13 1958-07-15 Piquerez Sa Ervin Pièce d'horlogerie étanche

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2166420A2 (de) * 2008-09-22 2010-03-24 Boninchi S.A. Screwed crown with valve or integrated pushbutton
EP2166420A3 (de) * 2008-09-22 2014-04-02 Boninchi S.A. Screwed crown with valve or integrated pushbutton
CN108572541A (zh) * 2017-03-13 2018-09-25 精工电子有限公司 带柄头锁定机构的钟表
CN108572541B (zh) * 2017-03-13 2021-07-27 精工电子有限公司 带柄头锁定机构的钟表
CN115390418A (zh) * 2021-05-19 2022-11-25 梅科股份公司 用于控制具有触觉反馈的钟表机芯的装置和包括这种装置的时计，特别是表
CN115847092A (zh) * 2023-02-03 2023-03-28 天王电子（深圳）有限公司 一种手表表壳底盖智能装配机
CN115847092B (zh) * 2023-02-03 2023-07-28 天王电子（深圳）有限公司 一种手表表壳底盖智能装配机

Also Published As

Publication number Publication date
EP1916577A3 (de) 2009-08-05
CH703671B1 (fr) 2012-03-15

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