EP0575831A1 - Drücker für eine Uhr - Google Patents

Drücker für eine Uhr Download PDF

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Publication number
EP0575831A1
EP0575831A1 EP93109345A EP93109345A EP0575831A1 EP 0575831 A1 EP0575831 A1 EP 0575831A1 EP 93109345 A EP93109345 A EP 93109345A EP 93109345 A EP93109345 A EP 93109345A EP 0575831 A1 EP0575831 A1 EP 0575831A1
Authority
EP
European Patent Office
Prior art keywords
tube
ring
push button
head
rod
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.)
Ceased
Application number
EP93109345A
Other languages
English (en)
French (fr)
Inventor
Gaston Gagnebin
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.)
Eberhard & Co Sa
Eberhard et Cie SA
Original Assignee
Eberhard & Co Sa
Eberhard et Cie 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 Eberhard & Co Sa, Eberhard et Cie SA filed Critical Eberhard & Co Sa
Publication of EP0575831A1 publication Critical patent/EP0575831A1/de
Ceased 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
    • G04B37/106—Hermetic sealing of openings, joints, passages or slits of winding stems of push buttons

Definitions

  • the present invention relates to a push button for a timepiece comprising a tube, a first portion of which is intended to pass through a middle part and a second portion of which emerges outside said middle part, the end of said second portion having a ring s 'extending towards the inside of the tube and made in one piece with it, a cylindrical mobile element sliding in the tube and comprising in order a head which can be actuated manually and which crosses the ring, the internal diameter of said ring being slightly greater than diameter of the head, a collar surrounding the head and having a diameter slightly smaller than the inside diameter of the tube, the upper face of said collar bearing on the lower face of the ring by the action of a return spring, said flange having in its periphery a groove in which is housed a seal, and a rod capable of actuating u n mechanism internal to the timepiece, the head, the flange and the rod being made in one piece.
  • the utility model JP-U-1,138,488 already offers a push button head sliding in a tube provided with a ring under which a collar surrounding the head is supported, this collar being provided with at least one groove in which takes place a seal intended to cooperate with the inner wall of the tube.
  • This arrangement which is also taken advantage of in the present invention, prevents dirt and stains of external origin from coming into direct contact with the lining, since they are previously retained by the pusher stop system which is constituted by the support of the flange under the ring, which forms a baffle difficult to cross by said dirt.
  • the pusher is therefore no longer subject to mechanical blocking that this dirt brought about.
  • the pusher of the cited document however, has great manufacturing complexity.
  • the head on which the manual pressure acts is not made in one piece with the control rod of the mechanism, which leads to certain drawbacks which will be discussed below.
  • Document FR-A-2.213.528 describes a push button where the head and the rod are made in one piece in order to avoid untimely dismantling of these elements, which often happens when the rod is screwed or driven into the head. If the head falls, not only is the pusher function no longer possible, but also the timepiece is no longer waterproof. In the case where the head is screwed on the rod, an energetic blockage could be a remedy. However, it has been observed that this blockage, given the small dimensions of the screw, is the cause of numerous ruptures of this screw, whether this is when the pusher is assembled or disassembled.
  • the second document cited does not provide any protection for the lining against external dirt since it is not equipped with the baffle system explained in connection with the first document cited.
  • the present invention aims to overcome the drawbacks mentioned by proposing a push button where on the one hand the head and the rod are made in one piece and where on the other hand the seal is protected from dirt.
  • the push button of the invention in addition to having the arrangement described in the first paragraph above, is characterized in that the end of the first portion of the tube is closed by a circular element fixed inside the tube, said circular element being provided with a bore whose diameter is just sufficient to be traversed by the rod and that the return spring is arranged around the rod, each of the ends of said spring s 'pressing respectively on said circular element and under said flange.
  • a first embodiment of the invention is shown in Figures 1 and 2.
  • the push button comprises a tube 3.
  • a first portion 1 of this tube is intended to pass through a middle part 4 and a second portion 2 of this tube emerges at the outside of the middle.
  • the end of the second portion 2 has a ring 5 extending towards the inside of the tube, this ring being made in one piece with the tube 3, preferably by turning.
  • the pusher further comprises a cylindrical mobile element 6 sliding in the tube 3.
  • This mobile element comprises three parts or stages comprising in order, taken from top to bottom, a head 7, a flange 8 and a rod 13.
  • the head 7 manually operable, crosses the ring 5, the internal diameter 40 of the latter being slightly greater than the diameter 41 of the head 7.
  • the flange 8 surrounds the head 7 and has a diameter slightly less than the internal diameter 34 of the tube 3.
  • the upper face 42 of the flange 8 bears on the lower face 9 of the ring 5 by the action of a return spring 10.
  • the flange 8 still has in its periphery a groove 11 in which is housed a lining of sealing 12, the latter resting on the internal wall 34 of the tube 3 to ensure the hermeticity of the pusher.
  • the support of the flange 8 against the ring 5 creates a baffle preventing dirt from being deposited on the internal wall 34 of the tube 3 and thus soil the lining 12.
  • the movable element 6 is terminated by the rod 13 capable of actuating an internal mechanism - not shown - in the timepiece.
  • the head, the flange and the rod are made in one piece thus preventing any dismantling of the movable element 6, dismantling which would be possible if the movable element was made of a screwed rod or chased in the head.
  • FIG. 1 also shows that the return spring 10 is arranged around the rod 13 and rests on the one hand on the circular element 14 and on the other hand under the flange 8.
  • the procedure is preferably as follows.
  • the only tube 3 is threaded into the bore 35 made in the middle part and then fixed by welding.
  • the cylindrical element 6 is supplied, which is fitted with the lining 12.
  • the assembly thus formed is threaded from inside the middle into the tube 3.
  • the return spring 10 is then slipped onto the rod 13 and closed. , also from the inside of the middle part, the tube 3 by placing the circular element 14 at the end of the first portion 1 of said tube.
  • This assembly will be reserved for top-of-the-range timepieces in which a foolproof resistance of the tube in the middle, as well as its waterproofness, are required.
  • FIGS. 1 and 2 show that this plug has a double slot 25 into which can be inserted the end of a specially prepared screwdriver.
  • FIG. 3 A second embodiment is shown in Figures 3 and 4, Figure 3 showing only a partial view of the pusher, that is to say that which is modified compared to the embodiment of Figure 1.
  • the circular element 14 is a disc 19 retained at the end of the first portion 1 of the tube by a ring 20 having a radial elasticity.
  • the disc 19 is supported on a shoulder 30 formed at the end of the first portion 1 of the tube, while the ring 20 is held in place in a groove 31 formed under the disc 19 and in the portion 1 of the tube.
  • the disc 19 has a bore 15 which allows the rod 13 to pass and guide precisely.
  • the ring 20 with radial elasticity is a split ring of rectangular section. This ring carries two beads 32 drilled each of a hole 33 to facilitate its installation or its removal.
  • FIG. 5 a third embodiment is shown in FIG. 5 which only shows a partial view of the pusher, the other part, not shown, being identical to that shown in FIG. 1.
  • the circular element 14 is a disc 21 held at the end of the first portion 1 of the tube.
  • This disc 21 is provided with a bore 15 which allows the rod 13 to pass and guide precisely.
  • the disc is held in the tube by a split ring 22 with radial elasticity which cooperates on the one hand with a first groove 23 made on the periphery of the disc 21 and on the other hand with a second groove 24 made inside the portion 1 of the tube.
  • the groove 23 is deep enough to contain the entire ring 22 when it is compressed. We can therefore introduce the disc 21 with the ring inside the tube.
  • the push button shown in FIG. 1 has a prominent head 7 which can be directly actuated by the user's finger.
  • the present invention also covers, without it being necessary to present it in a figure, a push button more especially used as a corrector and whose head is activated by a point or the end of a ballpoint pen. In the latter case, the head barely protrudes from the upper face of the ring 5 at the same time as it is provided with a conical imprint.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Push-Button Switches (AREA)
EP93109345A 1992-06-25 1993-06-11 Drücker für eine Uhr Ceased EP0575831A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2004/92 1992-06-25
CH200492A CH683056B5 (fr) 1992-06-25 1992-06-25 Bouton poussoir pour pièce d'horlogerie.

Publications (1)

Publication Number Publication Date
EP0575831A1 true EP0575831A1 (de) 1993-12-29

Family

ID=4223655

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93109345A Ceased EP0575831A1 (de) 1992-06-25 1993-06-11 Drücker für eine Uhr

Country Status (2)

Country Link
EP (1) EP0575831A1 (de)
CH (1) CH683056B5 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3339966A1 (de) 2016-12-23 2018-06-27 Rolex Sa Drucktaste für eine uhr

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH5582A (de) * 1892-07-01 1893-02-15 Fuchs Carl Wilhelm Selbstthätig wirkende Stellvorrichtung an Rollläden, Jalousien etc.
CH229461A (fr) * 1941-12-22 1943-10-31 Colomb Henri Boîte étanche.
CH239783A (fr) * 1942-01-15 1945-11-15 Colomb Henri Poussoir étanche.
EP0030696A1 (de) * 1979-12-13 1981-06-24 Societe Suisse Pour L'industrie Horlogere Management Services S.A. Minidrücker

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH5582A (de) * 1892-07-01 1893-02-15 Fuchs Carl Wilhelm Selbstthätig wirkende Stellvorrichtung an Rollläden, Jalousien etc.
CH229461A (fr) * 1941-12-22 1943-10-31 Colomb Henri Boîte étanche.
CH239783A (fr) * 1942-01-15 1945-11-15 Colomb Henri Poussoir étanche.
EP0030696A1 (de) * 1979-12-13 1981-06-24 Societe Suisse Pour L'industrie Horlogere Management Services S.A. Minidrücker

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
CH-A-5582/74 (LA NATIONALE S.A.) *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3339966A1 (de) 2016-12-23 2018-06-27 Rolex Sa Drucktaste für eine uhr
CN108241286A (zh) * 2016-12-23 2018-07-03 劳力士有限公司 用于钟表的按钮
JP2018155729A (ja) * 2016-12-23 2018-10-04 ロレックス・ソシエテ・アノニムＲｏｌｅｘ Ｓａ 時計用ボタン
US11188028B2 (en) 2016-12-23 2021-11-30 Rolex Sa Button for a timepiece
CN108241286B (zh) * 2016-12-23 2022-04-01 劳力士有限公司 用于钟表的按钮
JP7096663B2 (ja) 2016-12-23 2022-07-06 ロレックス・ソシエテ・アノニム 時計用ボタン

Also Published As

Publication number Publication date
CH683056B5 (fr) 1994-07-15
CH683056GA3 (fr) 1994-01-14

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