EP0884660A1 - Sicherheitsventil für eine Uhr - Google Patents
Sicherheitsventil für eine Uhr Download PDFInfo
- Publication number
- EP0884660A1 EP0884660A1 EP97109487A EP97109487A EP0884660A1 EP 0884660 A1 EP0884660 A1 EP 0884660A1 EP 97109487 A EP97109487 A EP 97109487A EP 97109487 A EP97109487 A EP 97109487A EP 0884660 A1 EP0884660 A1 EP 0884660A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- safety valve
- valve according
- lip
- seal
- interior
- 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.)
- Granted
Links
- 238000007789 sealing Methods 0.000 claims description 22
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 238000013459 approach Methods 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 239000002245 particle Substances 0.000 description 6
- 230000009189 diving Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000011324 bead Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 229910052734 helium Inorganic materials 0.000 description 4
- 239000001307 helium Substances 0.000 description 4
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 239000004744 fabric Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
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
Definitions
- the present invention relates to a safety valve for a watch according to the preamble of claim 1.
- An overpressure inside the watch can have the following origin to have:
- Such pressure changes can, for example, at occur during a dive, be it that the watch is in a gaseous environment, like it is in a diving bell is the case, or is located directly in the water.
- the Fabrics that pass through seals into the inside of the watch diffuse is especially the element with helium to call its small atomic size. helium does not only penetrate the clock if it is one for Diving bells are exposed to the usual helium atmosphere, but dissolves in greater depths, i.e. at high Pressure, even from the water.
- the safety valve according to the invention is equipped with a lip seal that is so oriented is that the concentric, apron-shaped lip The lip points from the interior of the watch to the surroundings with increasing ambient overpressure more to the cylindrical surface area pressed, from which excellent sealing results.
- the lip is reversed when there is overpressure in the watch advantageously deformed in such a way that they are cylindrical in shape Surface area is pushed away and forms a passage for an effective pressure reduction.
- the lip seal therefore works without additional, displaceable Elements as an automatic valve.
- Contact areas of the seal are under the sealing area and the parts of the Safety valve or the clock, i.e. Surface areas the seal and surface areas for example the outer and inner walls of the sleeve, the Cover, the watch case, etc., depending on the embodiment of the inventive safety valve.
- O-rings have a circular seam due to the manufacturing process is at the location of the largest circumference. This seam is for seals with small dimensions, as in the Watch industry is the case due to striking irregularities marked on the surface, which is their sealing quality significantly affect. With a lip seal however, at the sealing points, i.e. in the areas in contact with the drilling wall there are no seams. This also contributes significantly to improve the tightness.
- an additional seal is provided on the interior side the lip seal is arranged, for example another water barrier for the immersion process to build.
- the sealing properties of the lip seal of the inventive safety valve however so excellent that even without an additional seal satisfactory results are achieved.
- This additional seal is preferred Embodiment of the invention at ambient pressure automatically compressed by retracting the lip seal used towards the interior will, a movable valve piston on which the lip seal is applied in a stationary manner to the additional To let the seal act.
- the valve piston is reversed in the case of interior overpressure to the opposite Direction driven, relieving the extra Poetry means. So the lip seal has additional the advantage that it acts as a drive to a additional sealing element, such as an O-ring Seal overpressure increasingly and with interior overpressure to put in open position.
- This additional seal can be a preferred one Embodiment of the invention when impending ambient pressure additionally compressed by hand, by placing the safety valve over a screwable lid has the displacement of the valve piston when screwing towards the interior and the compression of the additional sealing element.
- a spring can advantageously be arranged in this way be that the additional sealing element without Exposure to external pressure or the cover in pre-compressed Condition.
- an advantageous embodiment according to the invention shows the external thread lying outside the middle part the sleeve has an annular groove, which is the first time Screwing the cover on a deformation of a threaded section allows so that the lid is no longer can get lost.
- Safety valve 10 has a continuous hollow sleeve 12, which is only partially in one shown middle part 14 or a housing of a clock is screwed in. In the clock there is one in the drawing interior 16 defined below that of the in the Drawing above surrounding 18 hermetically sealed is.
- the sleeve 12 has a shoulder 19 on the outside with respect to the axis 11 circular, the housing 14 facing bearing surface 20. Between this contact surface 20 and a corresponding one on the housing 14 provided, annular support surface 22 is a Metal sealing ring 23 is used, on this Place the interior 16 from the environment 18 seals.
- the sleeve On the inside, the sleeve has 12 different bores Diameter on, being on one, the environment 18 facing side of the sleeve 12 with a bore 28 a cylinder jacket-shaped wall 29 up to one inwards directed flange 30 brings up an annular Has bearing surface 31, which inside a bore 32 is limited.
- the interior 16 facing side of the sleeve 12 is also a Bore provided, which is designated 34 and itself also extends to the inward flange 30, whereby also on this side of the flange 30 circular, limited internally by the bore 32 Support surface 35 is provided.
- the sleeve 12 is axially movable Piston 36 arranged in the region of the bores 32nd and 34 has a cylindrical shaft 38 which extends up to protrudes the area of the bore 28 and there conical in the direction of the housing and the axis 11 extends almost to the wall 29 of the bore 28 and a bearing surface 39 in the form of a truncated cone forms.
- the truncated cone jacket so oriented that the extent towards the environment 18 increases, between the axis 11 and this Truncated cone is an angle 40 of, for example, 60 °.
- cylindrical jacket-shaped area 46 which by an annular support surface 48 is completed.
- cylinder jacket-shaped area 50 to another Support surface 52 which extends radially outwards and again has the shape of a circular ring.
- a lip seal 56 which has an elastic, rotationally symmetrical lip 58, which is conical in the direction of the housing 14 and from the axis 11 to the wall 29 of the bore 28 expands and rests there under tension.
- the lip seal 56 can also be referred to as a cuff.
- the interior space 16 designated below in FIG. 1 leads to the O-ring 44. Between the O-ring 44, the lip 58, the sleeve 12 and the cover 82 is an intermediate area 65 included. Regarding the function of the lip seal 56 this gap 65 can, however Interior 16 can be assigned to the clock.
- the Lip seal 56 In addition to the first surface area 60, the Lip seal 56 a second, rotationally symmetrical Surface area 66, which is also conical Approaches bore 28 in the direction away from the housing 14. Both surface areas 60 and 66 accordingly point into one similar direction, i.e. towards the housing 14 and the axis 11 away. Between the second surface area 66 and the wall 29 is an angle 68 smaller 90 °, i.e. for example 45 °. Thus the lip is 58 wedge-shaped at an angle of, for example, 35 ° formed and has in the contact area with the wall 29 an approximately pointed edge area 67.
- the lip seal 56 has a base area 70 on, the one under tension between the ones opposite bearing surfaces 48 and 52 is arranged and on the other hand on the cylinder-jacket-shaped area 50 sits.
- An arched transition zone 72 leads from of the bearing surface 52 initially in the direction of the interior 16 and with increasing distance from the axis 11 a curve descriptive towards environment 18 to finally in the second, rotationally symmetrical surface area 66 to pass.
- the bearing surface 52 Towards the surrounding area 18 and following the The bearing surface 52 is the piston 36 by itself tapered head 74 completed, one after externally convex end face 76 which has a stop forms.
- the head 74 is therefore conical, so that the lip seal 56 is placed over it in a simple manner can be.
- the sleeve 12 has a 78 interrupted external thread for receiving one with a short internal thread 80 provided, screwable protective cover 82, the external thread 78 according to FIG. 1 above the middle part 14, i.e. above the toothing 25 is arranged.
- This can be, for example trade a metric fine thread.
- the external thread 78 has a first, annular groove-shaped Interrupt point 84, which is slightly longer than that Internal thread is 80.
- a second, annular groove-shaped interruption point 86 provided that a length 88 of for example half a pitch of the external thread 78 has.
- Threaded section 90 of the external thread 78 leads about the end of the sleeve 12 facing the environment 18 for example, half a thread pitch so that the sleeve 12 at this end one with respect to the axis 11 has concentrically protruding bead 92, which corresponds to an elongated core of the threaded section 90.
- the height of the bead 92 can also be approximately one correspond to half the thread pitch.
- the protective cover 82 Left of the axis 11 is the protective cover 82 in on. shown screwed position, the threaded portion 90 by screwing the protective cover 82 in the second interruption point 86 is shown pushed in and only a small free space 94 of the second Interruption point 86 left.
- the lid 82 can be screwed shut before submerging be a first by thread engagement To form a dirt barrier, and on the other hand the O-ring 44 by moving the piston 36 towards Interior 16 in addition to the compression effect of the Compression coil spring 96 to compress as it left the Axis 11 is shown.
- lip 58 becomes overpressure in the watch deformed so that they from the bore wall 29 to Axis 11 is pushed away and a quick one Relaxation of the interior 16 of the clock allows.
- the angles 64 and 68 entered in FIG. 1 do not have to correspond to the selected 10 ° or 45 °.
- the angle 64 of the wedge-shaped free space 62 is decisive for the opening behavior of the lip seal Internal overpressure and must therefore always be less than Be 90 °.
- the angle 68 is crucial for that Closing and sealing behavior of the lip seal Outside overpressure and therefore must also be fundamentally be less than 90 °. So the lip itself has one Angle that is between 0 ° and 90 °, mentioned here must be that the shape of this lip is not one of those must correspond to Figure 1.
- the two surfaces 64 and 68 also parallel to each other run instead of in a pointed edge area 67 to mouth.
- the edge area 67 also does not have to be pointed be trained, but can be according to requirements be relatively thick on the lip seal.
- the Dirt deflector function is however from a tapered Edge area 67 met particularly well.
- the lip 58 on the surface 29 of the sleeve 12 essentially only in their edge area 67.
- the contact area between lip 58 and surface 29 also be much larger and the Take the shape of a cylinder jacket.
- the lip seal 56 on the Piston 36 fixed.
- the base area of the lip seal in an inside in the Sleeve provided to fix groove while holding the lip leads conically to the axis and rests on the outside of the piston.
- Outgoing of the figure 1 would have the cross-section of the lip seal 56 therefore mirrored on a vertical axis will.
- the lip seal on the outside can be provided on the sleeve, i.e. for example between Sleeve and cover, the lip in this case to the clock is directed towards.
- the Cross section of the lip seal 56 for this purpose on one horizontal axis are mirrored.
- the lip seal in either the sleeve or the lid be fixed while her lip is each on the other component is present.
- protruding bead 92 of Figure 1 are of course not provided if the cover is ring-shaped, for example Has projection that axially on the threaded portion 90th acts.
- the arrangement of the lip seal is on the various places of the inventive safety valve possible, but its orientation is from vitally important.
- the elastic lip should be directed so that it closes when the external pressure is greater than the pressure in the The inside of the watch is and that it opens when there is an internal pressure is present. One is generally sufficient for this extremely slight deformation of the lip.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Safety Valves (AREA)
Abstract
Description
- bei Umgebungsüberdruck ausgezeichnet abdichtet,
- bei Umgebungsunterdruck einen raschen Druckausgleich ermöglicht,
- sowie Schmutzpartikel vom Dichtungsbereich und vom Uhreninnern fernhält.
- die Figur 1 eine Ausführungsform des erfindungsgemässen Sicherheitsventils im Axialschnitt.
Claims (17)
- Sicherheitsventil (10) für ein Uhr, welches ein gehäusefestes Element (12), ein weiteres Element (36) sowie eine zwischen den beiden Elementen (12, 36) angeordnete Dichtung (56) aufweist, die den Uhreninnenraum (16) von der Umgebung (18) abgrenzt, dadurch gekennzeichnet,dass die Dichtung (56) eine Lippendichtung ist, die einen Basisbereich (70) sowie eine rotationssymmetrische Lippe (58) aufweist,dass der Basisbereich (70) in einem ersten (36) dieser Elemente (12, 36) ortsfest angeordnet ist,dass die Lippe (58) an einem zylindermantelförmigen Oberflächenbereich (29) eines zweiten (12) dieser Elemente (12, 36) anliegt unddass die Lippe (58), vom Basisbereich (70) ausgehend und in Richtung zur Umgebung (18) weisend, konisch an den zylindermantelförmigen Oberflächenbereich (29) heranführt und an diesem unter Vorspannung anliegt,um sich einerseits bei einem Innenraum-Überdruck zwecks Druckausgleich zwischen Innenraum (16) und Umgebung (18) vom Oberflächenbereich (29) zu lösen undum anderseits bei einem Umgebungs-Überdruck zwecks Abdichtung des Innenraumes (16) gegenüber der Umgebung (18) verstärkt an den Oberflächenbereich (29) gepresst zu werden.
- Sicherheitventil nach Anspruch 1, dadurch gekennzeichnet, dass die Lippe (58) zwei rotationssymmetrische Oberflächenzonen (60, 66) aufweist, wovon eine erste (60) dieser Oberflächenzonen dem Uhreninnenraum (16) zugewandt und eine zweite (66) dieser Oberflächenzonen in Kontakt mit der Umgebung (18) ist.
- Sicherheitventil nach Anspruch 2, dadurch gekennzeichnet, dass die erste Oberflächenzone (60) im wesentlichen, vom Basisbereich (70) ausgehend und in Richtung zur Umgebung (18) weisend, konisch zum zylindermantelförmigen Oberflächenbereich (29) führt, dass zwischen der ersten Oberflächenzone (60) und dem zylindermantelförmigen Oberflächenbereich (29) ein rotationssymmetrischer Freiraum (62) vorgesehen ist, der im Querschnitt im wesentlichen keilförmig ausgebildet und durch die Lippe (58) von der Umgebung (18) abgegrenzt ist, und dass die zweite Oberflächenzone (66) im wesentlichen, vom Basisbereich (70) ausgehend und in Richtung zur Umgebung (18) weisend, konisch zum zylindermantelförmigen Oberflächenbereich (29) führt.
- Sicherheitventil nach Anspruch 3, dadurch gekennzeichnet, dass sich die beiden Oberflächenzonen (60, 66) in Richtung zum zylindermantelförmigen Oberflächenbereich (29) hin annähern und in einen im wesentlichen spitzförmig ausgebildeten Lippenrand (67) münden.
- Sicherheitventil nach Anspruch 4, dadurch gekennzeichnet, dass die zweite Oberflächenzone (66) am Basisbereich (70) in eine Wölbung (72) übergeht.
- Sicherheitventil nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass das weitere Element (36) gegenüber dem gehäusefesten Element (12) mindestens in Richtung einer Achse (11) bewegbar ist.
- Sicherheitventil nach Anspruch 6, dadurch gekennzeichnet, dass das bewegliche Element (36) vom gehäusefesten Element (12) mindestens teilweise umschlossen ist.
- Sicherheitsventil nach Anspruch 7, dadurch gekennzeichnet, dass der Basisbereich (70) im beweglichen Element (36) ortsfest angeordnet ist und der zylindermantelförmige Oberflächenbereich (29) innseitig am gehäusefesten Element (12) vorgesehen ist.
- Sicherheitsventil nach Anspruch 7, dadurch gekennzeichnet, dass der Basisbereich (70) im gehäusefesten Element (12) ortsfest angeordnet ist und der zylindermantelförmige Oberflächenbereich (29) aussenseitig am beweglichen Element (36) vorgesehen ist.
- Sicherheitventil nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass das Sicherheitsventil (10) eine weitere Dichtung (44) aufweist.
- Sicherheitventil nach Anspruch 10, dadurch gekennzeichnet, dass die weitere Dichtung (44) innenraumseitig der Lippendichtung (56) angeordnet ist und zwischen ihr und der Lippendichtung (56), bzw. zwischen der Umgebung (18) und dem Innenraum (16) einen Zwischenraum (65) bildet.
- Sicherheitventil nach Anspruch 11, dadurch gekennzeichnet, dass die weitere Dichtung (44) ein O-Ring ist.
- Sicherheitventil nach Anspruch 10, 11 oder 12, dadurch gekennzeichnet, dass das weitere Element (36) ein, gegenüber dem gehäusefesten Element (12) mindestens in Richtung einer Achse (11) verschiebbarer, Kolben ist, auf welchem der Basisbereich (70) ortsfest angebracht ist, und dass der Kolben (36) die weitere Dichtung (44) komprimieren kann.
- Sicherheitventil nach Anspruch 13, dadurch gekennzeichnet, dass ein auf dem gehäusefesten Element (12) verschraubbarer Deckel (82) vorgesehen ist, um zwecks Komprimierung der weiteren Dichtung (44) die Verschieben des Kolbens (36) zu ermöglichen.
- Sicherheitventil nach Anspruch 14, dadurch gekennzeichnet, dass das gehäusefeste Element (12) einen Gewindeabschnittes (90) aufweist, der durch eine Unterbruchsstelle (86) vom übrigen Gewinde (78) getrennt ist, damit beim erstmaligen Zuschrauben des Deckels (82) eine Deformation des Gewindeabschnittes (90) möglich ist.
- Sicherheitventil nach Anspruch 10 bis 15, dadurch gekennzeichnet, dass eine Feder (96) vorgesehen ist, welche das weitere Dichtungselement (44) vorspannt.
- Uhr mit dem Sicherheitventil nach einem der vorangehenden Ansprüche.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE59711215T DE59711215D1 (de) | 1997-06-11 | 1997-06-11 | Sicherheitsventil für eine Uhr |
EP19970109487 EP0884660B1 (de) | 1997-06-11 | 1997-06-11 | Sicherheitsventil für eine Uhr |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19970109487 EP0884660B1 (de) | 1997-06-11 | 1997-06-11 | Sicherheitsventil für eine Uhr |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0884660A1 true EP0884660A1 (de) | 1998-12-16 |
EP0884660B1 EP0884660B1 (de) | 2004-01-14 |
Family
ID=8226903
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19970109487 Expired - Lifetime EP0884660B1 (de) | 1997-06-11 | 1997-06-11 | Sicherheitsventil für eine Uhr |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0884660B1 (de) |
DE (1) | DE59711215D1 (de) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9588494B2 (en) | 2013-10-30 | 2017-03-07 | Richemont International S.A. | Holding and indexing device for timepieces |
EP3428740A1 (de) * | 2017-07-14 | 2019-01-16 | The Swatch Group Research and Development Ltd | Sicherheitsventil für armbanduhr |
JP2019020391A (ja) * | 2017-07-20 | 2019-02-07 | オメガ・エス アー | 腕時計用安全弁 |
CN109751441A (zh) * | 2017-11-08 | 2019-05-14 | 奥米加股份有限公司 | 手表安全阀 |
EP3483669A1 (de) * | 2017-11-08 | 2019-05-15 | Omega SA | Sicherheitsventil für armbanduhr |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH237996A (fr) * | 1942-12-21 | 1945-06-15 | Kehrer Edmond | Organe extérieur de commande étanche pour pièce d'horlogerie. |
GB2045478A (en) * | 1979-03-29 | 1980-10-29 | Boninchi Sa | Water-tight winder for a diver's watch |
-
1997
- 1997-06-11 EP EP19970109487 patent/EP0884660B1/de not_active Expired - Lifetime
- 1997-06-11 DE DE59711215T patent/DE59711215D1/de not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH237996A (fr) * | 1942-12-21 | 1945-06-15 | Kehrer Edmond | Organe extérieur de commande étanche pour pièce d'horlogerie. |
GB2045478A (en) * | 1979-03-29 | 1980-10-29 | Boninchi Sa | Water-tight winder for a diver's watch |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9588494B2 (en) | 2013-10-30 | 2017-03-07 | Richemont International S.A. | Holding and indexing device for timepieces |
EP3428740A1 (de) * | 2017-07-14 | 2019-01-16 | The Swatch Group Research and Development Ltd | Sicherheitsventil für armbanduhr |
CN109253288A (zh) * | 2017-07-14 | 2019-01-22 | 斯沃奇集团研究和开发有限公司 | 用于表的安全阀 |
US10691070B2 (en) | 2017-07-14 | 2020-06-23 | The Swatch Group Research And Development Ltd | Safety valve for watches |
JP2019020391A (ja) * | 2017-07-20 | 2019-02-07 | オメガ・エス アー | 腕時計用安全弁 |
CN109751441A (zh) * | 2017-11-08 | 2019-05-14 | 奥米加股份有限公司 | 手表安全阀 |
EP3483670A1 (de) * | 2017-11-08 | 2019-05-15 | Omega SA | Sicherheitsventil für armbanduhr |
EP3483669A1 (de) * | 2017-11-08 | 2019-05-15 | Omega SA | Sicherheitsventil für armbanduhr |
US10838365B2 (en) | 2017-11-08 | 2020-11-17 | Omega Sa | Watch safety valve |
US10908557B2 (en) | 2017-11-08 | 2021-02-02 | Omega Sa | Escape valve for a watch |
Also Published As
Publication number | Publication date |
---|---|
EP0884660B1 (de) | 2004-01-14 |
DE59711215D1 (de) | 2004-02-19 |
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