US3643424A - Fluidtight watch - Google Patents

Fluidtight watch Download PDF

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Publication number
US3643424A
US3643424A US851276A US3643424DA US3643424A US 3643424 A US3643424 A US 3643424A US 851276 A US851276 A US 851276A US 3643424D A US3643424D A US 3643424DA US 3643424 A US3643424 A US 3643424A
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US
United States
Prior art keywords
packing
improvement
spring ring
axially
movement
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
US851276A
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English (en)
Inventor
Peter Simon
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Individual
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Individual
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Filing date
Publication date
Priority claimed from DE19681798081 external-priority patent/DE1798081C3/de
Application filed by Individual filed Critical Individual
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Publication of US3643424A publication Critical patent/US3643424A/en
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Expired - Lifetime legal-status Critical Current

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    • 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
    • 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
    • G04B37/04—Mounting the clockwork in the case; Shock absorbing mountings
    • G04B37/05—Fixed mountings for pocket or wrist watches
    • G04B37/055—Fixed mountings for pocket or wrist watches with shock damping means including the winding stem
    • 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
    • G04B37/081—Complete encasings for wrist or pocket watches also comprising means for hermetic sealing of the winding stem and crown

Definitions

  • This invention relates to a watch, such as a wristwatch, pocket watch, stopwatch, or the like, having a movement which is floatingly held in a case rendered fluidtight by a softelastic packing disposed between the movement and the watchcase.
  • Watch structures of the aforenoted type are known wherein the packing is secured to the watchcase or movement by adhesive means to seal the case at locations of joints with separately mounted closure elements such as the crystal and the base and provide a seal about the winding stem as well.
  • Such a structure is disclosed for example in German Pat. No.
  • the securing of the packing by adhesive means is disadvantageous in that the assembly of the watch is made more complicated, a replacement of the packing is difiicult, if at all possible, and, further, the presence of adhesives in a wrist watch case is generally undesirable. Also, the mounting of the movement is difficult and, in case of a frontal mounting, a two-part packing is necessary.-
  • a watch structure of the aforeoutlined type wherein the packing serving simultaneously to seal the case and support at leastthe crystal in an axially displaceable manner is urged radially outwardly against the inner wall of the case middle by a resiliently yielding tensioning means, such as at least one preloaded spring ring.
  • a resiliently yielding tensioning means such as at least one preloaded spring ring.
  • the spring ring or the like although exerting a force only in a radial direction not only urges the packing against the case middle, but causes the softelastic material of the packing to expand axially and to be pressed, accordingly, against the sealing edges of the closure elements (such as the crystal and the base) and also against the winding stem.
  • an adhesive to secure the packing in place may be omitted without detriment to the scaling properties.
  • the easy separation of the packing from the case middle permits a simple assembling of the watch and also, if necessary, a simple replacement of the packing.
  • the case middle with the packing and the tensioning means may, without disadvantage, form a mounting unit of the watch, while the movement, the closure element or elements and the winding stem form further mounting units.
  • the mounting unit obviates this disadvantage, since the case middle, the packing and the tensioning means may be easily preassembled with high precision.
  • the pressing of the packing against the inner wall of the case middle ensures that the packing and the case middle, during further assembly of the watch and also thereafter, do not shift or move angularly with respect to one another.
  • Such a characteristic is also essential for a uniform, unobstructed operation of the winding stem.
  • the invention further permits the use of a threaded lid directly pressing against the packing, without danger that the latter, not secured by adhesives, is displaced.
  • the invention is particularly advantageous with respect to the floating support provided by the soft-elastic packing, since the tensioning means delivers a practically continuously uniform force and, as a result, it is ensured that the floating support changes its properties only in an insignificant manner with time, if at all. Further, because of the radial force generated by the tensioning means, the movement may be secured, preferably in a preloaded condition, directly to the packing in a simpler and more secure manner than heretofore possible. Thus, by directly fitting the movement into the packing, the movement carrier may be omitted.
  • the watch constructed in accordance with the invention has a further advantage that the tolerances for the watchcase and the crystal 'at locations that accommodate the packing, may be larger than in watches of the prior art.
  • a further advantage resides in a relatively slight load on the packing. Since the resilient tensioning means provides for a continuous readjustment of the packing, the initial pressure force exerted on the closure elements may be held at a smaller value than in known watch structures. As a result, fatigue of the material is less significant and sets in slower.
  • FIG. 1 is a sectional side elevational view of an embodiment of the invention
  • FIG. 2 is a sectional side elevational view of a modification of the structure shown in FIG. 1;
  • FIG. 3 is a sectional side elevational view of a further modification of the structure shown in FIG. 1;
  • FIG. 4 is a sectional side elevational view of still another modification of the structure shown in FIG. 1;
  • FIG. 5 is a sectional side elevational view of another embodiment of the packing and tensioning means
  • FIG. 6 is a plan view of a tensioning means fonning part of the structure shown in FIG. 5;
  • FIG. 7 is a sectional side elevational view of a further embodiment of the invention.
  • FIG. 8 is a side elevational view, partially in section, of a modification of the embodiment shown in FIG. 7.
  • FIG. 1 the watch shown therein is formed .of an assemblycomprising an enclosure generally indicated at 10, a-movement 11 from which there extends radially outwardly a winding stem 12 and a dial l3affixed to said movement, a packing 14 which serves for a complete sealing of the enclosure, and a spring ring 15 disposed concentrically and radially inwardly with respect to the packing and adapted to exert a resilient force thereto in a radially outward direction.
  • the enclosure is formed of a case middle 16, a crystal l7, and a base 18, all made of the usual materials.
  • the spring ring has cylindrical sidewall faces and is an open annulus made of spring steel or the like.
  • the free ends of spring ring 15 are disposed, in this embodiment, at either side of winding stem 12 so that the latter may pass radially through the spring ring 15 without the necessity of providing a bore thereim
  • the gap defined by the free ends of the spring ring 15 is substantially filled by the packing to improve the seal about the winding stem 12.
  • the latter engages with its lower edge a shoulder 59 of the packing 14.
  • the height of the spring ring 15 approximately corresponds to the height of that part of the inner wall of the casemiddle 16 which is engaged by the outer peripheral face 19 of the packing l4.
  • Said peripheral face 19 is designed in such a manner that it extends into an annular circumferential groove 20 provided in the inner face of case middle 16.
  • the packing 14 is further provided with an annular projection2l extending downwardly from its mid portion and pressed against the inner face of base 18.
  • the upstanding annular projection 22 of base 18, securing the latter to the case middle 16, also exerts pressure to the packing 14, whereby the sealing of the base is further improved.
  • the packing 14 has an upper annular rim 24 projecting axially upwardly and engaging the radial terminal edge of crystal 17.
  • Both the crystal 17 and the base 18 are axially resiliently held in the case middle 16 after insertion in a preloaded condition.
  • the bezel 30 and the frustoconical peripheral face 32 of the crystal 17 are urged downwardly towards the inside of the case middle 16.
  • the base 18 by virtue of its preloaded condition, is urged upwardly towards the inside of the case middle 16.
  • the pressures thus generated are counteracted by the elastically resisting forces exerted by the packing 14 on the crystal l7 and base vl8.
  • both the crystal 17 and the base 18 are exposed to two opposed axial forces which, as a function of external forces, preload, as well as pressures exerted by the packing l4, determine the axial position of crystal l7'and base 18 with respect to the case middle 16.
  • the crystal l7 and the base 18 move outwardly; conversely, if the external pressure increases, the named parts I move inwardly.
  • the pressures between the crystal 17 and base 18 adjust themselves to the outer pressures and also to the changes in the forces exerted by the packing 14.
  • the shoulder 25 forming part of the case middle 16 prevents the crystal 17 from moving too far downward axially.
  • the lower edge 16' of the case middle 16 has a similar function: it prev'ents'the base 18 from moving too far upward axially. Also, these means prevent an overloading of the packing 14 by accidentally applying excessive strains thereto. If desired, those parts of the .closure elements (such as crystal l7 and base 18) that engage the packing, may be provided with additional annular lips or the like which bite into the packing.
  • the crystal 17a comprises a locking groove 35 having a V-shaped section.
  • the adjacent wall portion of the case middle 16a has a complemental annular projection formed of angularly converging frustoconical wall faces 36 and 37' of case middle 16.
  • the crystal 17a by virtue of the face 37, is urged downwardly against the resilient force of the packing 14a.
  • Base 18a is provided with a V-groove 37 which, with complemental inner peripheral parts of base 18a forms a locking means therefor which is similar in function to the aforedescribed locking means between crystal 17a and the case middle 16a.
  • the base 18a (which, instead of metal may be made of a synthetic material) may be inserted or removed with a conventional crystal clamp.
  • the diameters of cylindrical axial faces 38 (integral with crystal 17a) and 39 (integral withbase 18a) are of substantially identical magnitude.
  • the spring ringlSa has a lower rim 40 which extends over a radial shoulder of the packing 14a so that at that location the packing may not spread downwardly.
  • the free ends 42 and 43 of the spring ring 15a define a gap 41 that extends obliquely with respect to the axis of the ring 15a.
  • the spring ring is provided with a radial bore (not shown) through which the winding stem 12 extends.
  • the movement 11, as in the precedingly described embodiment, is held by the dial 13 which, in turn, is supported at its peripheral portions by the packing 14a.
  • the lower peripheral face of the crystal 17a presses a radially inwardly projecting rim of the packing 14a downwardly onto the upper peripheral portion of the dial 13 for providing a floating suspension of the latter.
  • FIG. 3 there is illustrated a packing ring 14b provided with an annular peripheral V-groove 44 extending over the entire thickness thereof.
  • the inner wall of the case middle 16b has two axially adjacent circumferential V-grooves arranged in such a manner as to accommodate marginal peripheral portions of packing 14b contoured by V-groove 44.
  • the annular, rimlike V-projection 45 formed of two adjacent converging walls of the two aforenoted V-grooves provided in case middle 16b prevents an excessive inward displacement of crystal l7 and base 18b.
  • the abutment does not provide for a sudden and rigid stoppage of crystal 17b and base 18b; portions of the packing 14b disposed between the crystal and the case middle as well as between the base and the case middle resist resiliently to axially inwardly directed external pressures.
  • the dial 13 is held in the case similarly to the precedingly described embodiments.
  • the spring ring b and the packing 1412 are so arranged with respect to one another that the outer wall of the former is in engagement with the inner wall of the latter through the entire height thereof.
  • the spring ring 15b is provided with a bore 15b through which the winding stem 12b extends. The split ends of the spring ring 15! interengage with one another in a manner not shown.
  • the winding stem 12b is provided with a peripheral V-groove 49 forming a lubricating channel which may be at least partially filled with a lubricating material.
  • the surrounding packing Mb prevents leaking of the lubricant which may be oil or grease.
  • the crystal 17b and the base 18b bite into the packing 14b by means of sharp-edged, annular projections.
  • the lower edge face 50 of the crystal 17b immediately adjacent the packing 14b has a frustoconical surface, the imaginary apex of which is disposed above the dial l3 and externally of the movement 11. In this manner the securing means for the dial 13 is further improved.
  • the case middle 16c and the base 18c form an integral enclosure element generally indicated at 51.
  • the elastic securing of the dial 13 by inserting the latter into the packing in a preloaded condition is particularly advantageous.
  • the crystal We is again held in such a manner that it may be resiliently displaced in both axial directions in the same manner, in principle, as in the precedingly described embodiments.
  • the inner wall portion 52 of the case middle Me has a frustoconical configuration over its entire height.
  • the packing 140 has a periphery designed so that it conforms to the surface 52.
  • the spring ring 15c is provided with a bore 15c through which the winding stem 12 may extend.
  • the packing 14d shown therein is in principle similar to the packing 14a of FIG. 2 and may find use in a watch designed according to that figure.
  • the packing 14d differs from the packing 14a substantially in that it is formed of a soft-elastic, synthetic material and that the spring ring 1511 may be substantially embedded therein. Accordingly, in this embodiment, the height dimension of the spring ring 150' is lesser than that of spring ring 15a.
  • the two axially extending rims 56 and 57 of packing 14d perform the same function as the corresponding annular rims of the packing 14a.
  • therim 56 serves for elastically holding the dial l3 and simultaneously sealing the crystal.
  • the rim 57 serves to additionally seal the base.
  • FIG. 6 is a plan view of the spring ring 15d.
  • the packing Me is formed of an upper packing ring Me, a lower packing ring 142" and axial spacers 60 (only one shown) arranged in a circular array and interconnecting the two packing rings.
  • the spring 152 is provided with a plurality of axial bores 62 (only one shown) disposed in a circular array for receiving the axial spacers 60 of packing 142. It is thus seen that by virtue of this structure, the spring ring 15c is securely anchored to the packing Me.
  • the outer peripheral portions 61 of the spring ring 15c project radially beyond the contour of packing 14a and extends into an annular groove 52' provided in the case middle 16s.
  • FIG. 8 the assembly formed of packing 14f and spring ring 15f differs from the embodiment shown in FIG. 7 in that the packing rings 14f and 14]" are entirely separate and are bonded to opposed radial faces of spring ring 15f.
  • tensioning means have been described as being a single metallic split ring.
  • tensioning means made of a suitable resilient material other than metal.
  • the spring ring may be closed and provided with circumferential corrugations to generate radially outwardly directed forces.
  • a plurality of spring rings may be used.
  • a coil spring or the like may be inserted in a radially and axially preloaded condition to exert a radial force on the packing pressing it against the case middle and also, to exert an axial force on the closure elements.
  • the dial may be fitted into the packing together with the frontal plate member of the movement.
  • said plate member, fitted alone into the packing may serve as the sole holding means for the movement.
  • a watch case including a case middle
  • a packing made of soft-elastic material and rendering said watch case outwardly fluid tight
  • a movement floatingly supported in said watch case the improvement comprising, tensioning means exerting a force on said packing urging the same against a surrounding inner wall of said case middle.
  • said watch includes a winding stem which is provided with a peripheral annular lubricating groove at a location surrounded by said packing.
  • said tensioning means includes at least one spring adapted to exert both an axially and a radially directed force.
  • said watch case includes frontal and base closure elements, at least one of said closure elements is adapted to shift axially with respect to said case middle.
  • said axially shiftable closure element is exposed to an axially outwardly directed force exerted by said packing; said case middle includes an outwardly tapering frustoconical inner circumferential wall into which said axially shiftable closure element is inserted in a radially preloaded condition; the radial pressure exerted by said last-named closure element on said frustoconical wall generates a force urging said last-named closure element axially inwardly.
  • said holding means is constituted by a plate member forming part of said movement and disposed adjacent a dial secured to said movement; said plate constituting the sole holding means for said movement.
  • said packing has an annular configuration and said tensioning means comprises a preloaded spring ring disposed substantially concentrically with said packing and exerting thereon a radially outwardly directed force.
  • said watch includes a winding stem; said split spring ring has two free ends that define a gap; said split spring ring is so positioned that said winding stem extends radially through said gap.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Gasket Seals (AREA)
US851276A 1968-08-19 1969-08-19 Fluidtight watch Expired - Lifetime US3643424A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681798081 DE1798081C3 (de) 1968-08-19 Uhr

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US3643424A true US3643424A (en) 1972-02-22

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Application Number Title Priority Date Filing Date
US851276A Expired - Lifetime US3643424A (en) 1968-08-19 1969-08-19 Fluidtight watch

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US (1) US3643424A (xx)
JP (1) JPS4819274B1 (xx)
CH (2) CH508920A (xx)
FR (1) FR2017168B1 (xx)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3727367A (en) * 1970-10-08 1973-04-17 Y Fujimori Shock proof watchcase
US3828549A (en) * 1972-12-18 1974-08-13 Seiko Instr & Electronics Watertight watchcase
US4397567A (en) * 1980-11-06 1983-08-09 Timex Corporation Timepiece construction with a caseback removable using a credit card
US4497584A (en) * 1982-06-21 1985-02-05 Firma H. Finger Wrist watch case with vulcanized gasket
US4529323A (en) * 1982-11-09 1985-07-16 Omega Sa Leak resistant watch casing having annular elastic element surrounding a casing ring which centers the watch movement relative to the casing
US4545688A (en) * 1983-01-10 1985-10-08 Asuag-Ssih Watch case having synthetic material seals between detachable parts thereof
US4626108A (en) * 1984-06-07 1986-12-02 Gebruder Junghans Gmbh Wristwatch with seal
US5163030A (en) * 1989-11-30 1992-11-10 Tissot S.A. Watch case intended for automated assembly
US5467325A (en) * 1993-12-23 1995-11-14 Smh Management Services Ag Watch case
US20060002242A1 (en) * 2002-11-18 2006-01-05 Williy Meier Watch case
US20060126440A1 (en) * 2004-02-20 2006-06-15 Daniel Lazaretnik Square shaped timepieces with transparent views
US20090245032A1 (en) * 2006-09-27 2009-10-01 Omega S.A. Watch case with a composite middle part
US9323225B2 (en) * 2014-08-29 2016-04-26 Casio Computer Co., Ltd. Timepiece
US10466651B2 (en) * 2016-09-09 2019-11-05 Montres Tudor SA Watch glass

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50125363A (xx) * 1974-03-23 1975-10-02
CH632890B (fr) * 1979-08-08 Gen Watch Co Ltd Procede de fabrication d'une boite de montre et boite de montre obtenue par ce procede.
JPH01170419U (xx) * 1988-05-18 1989-12-01
CH681844B5 (fr) * 1991-07-03 1993-12-15 Smh Management Services Ag Montre-bracelet comportant une carrure-lunette, des cornes et un fond faits d'une pièce.
CH693049A5 (fr) * 1998-02-27 2003-01-31 Rado Montres Sa Procédé de réalisation d'étanchéité dans une montre.
CH700383B1 (de) 2009-02-13 2013-03-15 Raphael Fleischhauer Uhrengehäuse.

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1268821A (en) * 1917-10-06 1918-06-11 Charles L Depollier Watchcase.
US2256200A (en) * 1939-07-28 1941-09-16 Donovan J Heilman Watchcase
DE824472C (de) * 1949-12-28 1951-12-10 Erwin Piquerez Abgedichtete Uhrenschale
GB721920A (en) * 1952-07-17 1955-01-12 Charles Jules Juillerat Waterproof shock-absorbing watch case
FR1239947A (fr) * 1959-04-30 1960-09-02 Etablissements Frainier Soc D Boîte de montre à fermeture étanche
DE1186416B (de) * 1958-01-08 1965-01-28 Emir S A Uhrgehaeuse mit abnehmbarem Boden
FR1434497A (fr) * 1965-03-25 1966-04-08 Junghans Geb Ag Garniture d'étanchéité pour boîtiers de montres, notamment de montres-bracelets
US3492810A (en) * 1967-07-07 1970-02-03 Movado Montres Timepiece case with movement-securing shock-absorbing means

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH28928A (de) * 1903-07-09 1904-06-30 C Comte Dispositif-protecteur pour mouvements de montres de poche
US2294175A (en) * 1940-08-14 1942-08-25 Manning Maxwell & Moore Inc Dial instrument case
FR898248A (fr) * 1941-03-31 1945-04-13 Gebru Der Thiel G M B H Dispositif de support du mécanisme des montres
FR905856A (fr) * 1942-12-28 1945-12-17 Hans Steimann Boîte de montre étanche
CH338404A (fr) * 1956-08-14 1959-05-15 Monnier & Cie R Cadre d'encageage pour pièce d'horlogerie
CH347773A (fr) * 1958-07-03 1960-07-15 Villard Gilbert Montre
CH1084163A4 (xx) * 1963-09-02 1965-05-31

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1268821A (en) * 1917-10-06 1918-06-11 Charles L Depollier Watchcase.
US2256200A (en) * 1939-07-28 1941-09-16 Donovan J Heilman Watchcase
DE824472C (de) * 1949-12-28 1951-12-10 Erwin Piquerez Abgedichtete Uhrenschale
GB721920A (en) * 1952-07-17 1955-01-12 Charles Jules Juillerat Waterproof shock-absorbing watch case
DE1186416B (de) * 1958-01-08 1965-01-28 Emir S A Uhrgehaeuse mit abnehmbarem Boden
FR1239947A (fr) * 1959-04-30 1960-09-02 Etablissements Frainier Soc D Boîte de montre à fermeture étanche
FR1434497A (fr) * 1965-03-25 1966-04-08 Junghans Geb Ag Garniture d'étanchéité pour boîtiers de montres, notamment de montres-bracelets
US3492810A (en) * 1967-07-07 1970-02-03 Movado Montres Timepiece case with movement-securing shock-absorbing means

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3727367A (en) * 1970-10-08 1973-04-17 Y Fujimori Shock proof watchcase
US3828549A (en) * 1972-12-18 1974-08-13 Seiko Instr & Electronics Watertight watchcase
US4397567A (en) * 1980-11-06 1983-08-09 Timex Corporation Timepiece construction with a caseback removable using a credit card
US4497584A (en) * 1982-06-21 1985-02-05 Firma H. Finger Wrist watch case with vulcanized gasket
US4529323A (en) * 1982-11-09 1985-07-16 Omega Sa Leak resistant watch casing having annular elastic element surrounding a casing ring which centers the watch movement relative to the casing
US4545688A (en) * 1983-01-10 1985-10-08 Asuag-Ssih Watch case having synthetic material seals between detachable parts thereof
US4626108A (en) * 1984-06-07 1986-12-02 Gebruder Junghans Gmbh Wristwatch with seal
US5163030A (en) * 1989-11-30 1992-11-10 Tissot S.A. Watch case intended for automated assembly
US5467325A (en) * 1993-12-23 1995-11-14 Smh Management Services Ag Watch case
US20060002242A1 (en) * 2002-11-18 2006-01-05 Williy Meier Watch case
US20060126440A1 (en) * 2004-02-20 2006-06-15 Daniel Lazaretnik Square shaped timepieces with transparent views
US20090245032A1 (en) * 2006-09-27 2009-10-01 Omega S.A. Watch case with a composite middle part
US7988350B2 (en) * 2006-09-27 2011-08-02 Omega S.A. Watch case with a composite middle part
US9323225B2 (en) * 2014-08-29 2016-04-26 Casio Computer Co., Ltd. Timepiece
US10466651B2 (en) * 2016-09-09 2019-11-05 Montres Tudor SA Watch glass

Also Published As

Publication number Publication date
FR2017168B1 (xx) 1974-05-03
DE1798081B2 (de) 1976-07-08
JPS4819274B1 (xx) 1973-06-12
CH1247369A4 (xx) 1971-02-15
FR2017168A1 (xx) 1970-05-22
CH508920A (de) 1971-02-15
DE1798081A1 (de) 1971-09-16

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