US3475901A - Winding and hand-setting crown for diver watches - Google Patents
Winding and hand-setting crown for diver watches Download PDFInfo
- Publication number
- US3475901A US3475901A US727161A US3475901DA US3475901A US 3475901 A US3475901 A US 3475901A US 727161 A US727161 A US 727161A US 3475901D A US3475901D A US 3475901DA US 3475901 A US3475901 A US 3475901A
- Authority
- US
- United States
- Prior art keywords
- crown
- ring
- members
- winding
- tube
- 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
Links
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
- a winding and hand-setting crown for diver watches comprising a pair of identical and resilient packing members secured to the body member of the crown, each of which consists of a flat ring engaging the watchcase tube only by an edge pressed thereagainst by a bearing surface of the body member of the crown and of an intermediate ring secured thereto.
- This invention relates to winding and hand-setting crowns for diver watches and, more particularly, to crowns comprising resilient packing means located in a cavity of a body member of the crown and being pressed against a watchcase tube.
- the crown has, of course, to be manufactured so as to stand under the required pressures.
- the known crowns used in diver Watches are therefore equipped with packing means which encompass the watchcase tube over a larger surface than with usual watches. Since the diameter of the watchcase tube is usually the same in a diver watch as in a usual watch, the packing means of a crown for diver watches must encompass the watchcase tube over a higher portion than with usual watches in order to satisfy the above-mentioned condition.
- the known crowns for diver watches thus have the drawback that they cannot be actuated easily, unless they are made not only higher, but also with a larger diameter than the usual crowns.
- the crowns of diver watches constitute a big and unaesthetic projection protruding from the watchcase so that the crown is moreover exposed to the risk of being torn away when it happens to come in contact with some foreign hard body.
- the known crowns for diver watches have furthermore the drawback that upon winding the watch, it cannot be noticed when the watch spring has been completely wound up. Since the torque which can be exerted on the winding stem by means of the known crowns for diver watches, exceeds the breaking load of the motor spring of the watch, this spring obviously has to be protected by a device preventing overwinding the motor spring.
- a more particular object of the invention consists in providing the crown with packing means comprising a pair of identical and resilient members which are superimposed to each other, each having, in its natural state, the shape of a flat ring with parallel side faces, an inner end face having a diameter substantially equal to the diameter of the watchcase tube and a thickness larger than the distance between the outer surface of the watchcase tube and the inner surface of the outer Wall of the crown body member, an intermediate ring being inserted between said two packing members.
- Crowns for usual watertight watches comprising a single packing member similar to those of the crown improved according to the invention, are already known in the art. Since the packing member of these known crowns has only one edge engaging the watchcase tube, they can easily be actuated. Said packing member does however not ensure a tight closure capable of standing under outer pressures much stronger than two or three atmospheres.
- FIG. 1 is an axial section of the first embodiment
- FIG. 2 is a similar section of the second embodiment
- FIG. 3 is a similar section of the third embodiment.
- FIG. 4 is a partial perspective view on a larger scale of a member of FIG. 3.
- the crown represented in FIG. 1 comprises a metallic body member 1 provided with an annular cavity 2 arranged for receiving a tube 3 secured to the casing 4 of a diver watch. Cavity 2 extends around a tapped tubular projection 5 provided in the center of 'body member 1 of the crown for screwing the latter on a winding and hand-setting stem 6 controlling the movement of the watch.
- the central tubular projection 5 is surrounded by an outer wall 7 of 'body member 1.
- An annular recess 8 is provided in wall 7 adjacent to the opening of cavity 2.
- Recess 8 has a bottom face 29 intersecting with the inner surface 30 of wall 7 along an edge 14 which is either bevelled or rounded. It is arranged for receiving the packing means of the crown.
- packing means comprise a pair of identical and resilient packing members 9, which are superimposed to each other.
- An intermediate ring 11 is inserted between members 9 and 10 and a closing ring 12 secured to wall 7 by a rim 13 holds members -9, 10 and ring 11 axially in place within recess 8.
- member 9, 10 When member 9, 10 are in their natural state, i.e. before locating them in recess 8, they have the shape of flat rings.. Their side faces 31 are accordingly parallel. Moreover, the diameter of their inner end' faces 18, 19 is substantially equal to that of tube 3. Their thickness is finally larger than the distance a between the outer surface of tube 3 and the inner surface 30 of wall 7.
- the intermediate ring 11 is made of metal like body member 1 of the crown and closing ring 12. Ring 11 has substantially the same thickness as ring 12, but a larger inner diameter. The latter is equal to that of the inner surface 30 of wall 7. Ring 11 has an inner lower free edge 15 which is given the same shape as edge 14 of body member 1.
- ridges 16, 17 not only hold members 9 and 10 within recess 8.
- the inner end faces 18, 19 of members 9, 10 extend in an inclined direction relative to the watchcase tube 3, even before shifting the crown thereupon.
- FIG. 2 a thinner ring as shown in the second embodiment (FIG. 2) could also be resorted to.
- the intermediate ring 22 of this second embodiment is still rigid like ring 11 of the first embodiment so that its bevelled or rounded edge 23 causes edge 21 of member 10 to be pressed against tube 3 under the conditions described with reference to the first embodiment.
- tongues 24- each having the form of a sector of a circular zone, are formed all around ring 22 at regularly staggered places thereof. These tongues are cut along three sides of said sectors: the outer circular side and the two radial ones. Tongues 24 can then be bent out of the plane of ring 22 so as to engage the external side face of member 9 like ridge 16 of the first embodiment.
- the third embodiment shows still a further manufacturing possibility of the intermediate ring.
- the intermediate ring consists of a flat spring 25 made of tempered steel.
- the inner edge 26 of this ring is bent upwards so that its convex surface has the same shape as rounded edge 14 of body member 1 of the crown.
- a plurality of inclined slots 27 are provided around ring 25 from the inner edge and at regularly staggered places thereof.
- the anohoring means provided on ring 25 are made in a manner similar to that described with reference to the second embodiment.
- Triangular tongues 28 are cut at regularly staggered places around ring 25 in the vicinity of its outer edge.
- Tongues 28 are cut along two sides of the triangle. They are then bent at right angle out of the plane of ring 25. Because of the curved shape of edge 26 of ring 25, the anchoring means provided on this ring need not stretch the portion of member 9 adjacent to the external side face thereof in order to hold member 9 in the same position as in the two first embodiments.
- tongues 28 have only to prevent member 9 from being pulled out of recess 8 upon shifting the crown in axial direction along tube 3.
- Members 9, 10 which constitute the packing means of the crown thus operate in this third embodiment exactly in the same manner as in the two first embodiments.
- a winding and hand-setting crown comprising, in combination,
- a body member (1) including an outer wall (7) and a central tubular projection (5) arranged for permitting the crown to be secured to the winding and hand-setting stem, said outer wall and said central tubular projection being separated from each other by an annular cavity (2) provided in said body member and being arranged for receiving a portion of the watchcase tube,
- a recess (8) provided in said outer wall adjacent to the opening of said cavity, said recess having a bottom face (29) intersecting with the inner surface (30) of said outer wall along a bearing edge (14), packing means located in said recess and comprising a pair of identical and resilient packing members (9, 10) being superimposed to each other, each having, in its natural state, the shape of a flat ring with parallel side faces (31), an inner end face (18, 19) having a diameter substantially equal to the diameter of the watchcase tube and a thickness larger than the distance (a) between the inner surface of said outer wall and the outer surface of the watchcase tube, each of said packing members being arranged in said recess so that one of its side faces constitutes an external face and is directed toward the opening of said cavity, an intermediate ring (11) inserted between the two members of said pair of packing members and having an internal side face (32) directed toward the bottom of said cavity and a free edge directed in the opposed direction,
- said intermediate ring being made out of a material less resilient than the packing members of said pair and having substantially the same outer diameter as said packing members, but an inner diameter larger than that of said packing members,
- a closing ring (12) having an internal side face (33) directed toward the bottom of said cavity and being secured to said outer wall and maintaining said pair of packing members and said intermediate ring within said recess,
- said intermediate ring (11) being rigid and having a rectangular cross-section and an inner diameter equal to the diameter of the inner surface of said outer wall (7),
- said free edge (15) being beveled or rounded up in exactly the same manner as said bearing edge (14).
- said anchoring means (16, 17) consisting of annular ridges having a triangular cross-section.
- said intermediate ring (22) being thin andjthe anchoring means provided thereon consisting of a plurality of tongues (24) partially cut out therefrom and bent out of the plane thereof.
- said intermediate ring consisting of a flat spring (25) having its inner edge bent so as to give the face of said ring directed toward the opening of said cavity the shape both of the bottom of said recess (8) and of said bearing edge (14).
- said fiat spring (25) being provided with a plurality of slots ,(27) extending in an inclined direction from its inner edge and being regularly staggered therearound.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Gasket Seals (AREA)
- Electric Clocks (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH652867A CH473420A (fr) | 1967-05-09 | 1967-05-09 | Couronne de remontoir et de mise à l'heure pour montre de plongée |
Publications (1)
Publication Number | Publication Date |
---|---|
US3475901A true US3475901A (en) | 1969-11-04 |
Family
ID=4311012
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US727161A Expired - Lifetime US3475901A (en) | 1967-05-09 | 1968-05-07 | Winding and hand-setting crown for diver watches |
Country Status (4)
Country | Link |
---|---|
US (1) | US3475901A (fr) |
CH (1) | CH473420A (fr) |
DE (1) | DE1773392B2 (fr) |
GB (1) | GB1224896A (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3863438A (en) * | 1973-06-29 | 1975-02-04 | Rene Soguel | Device for insuring the tightness of a timepiece casing |
US4979156A (en) * | 1989-07-27 | 1990-12-18 | Kester Lynn C | Screw-on watch stem seal |
US6137750A (en) * | 1997-06-11 | 2000-10-24 | Meco Sa Grenchen | Safety valve for a timepiece |
US6200020B1 (en) * | 1997-06-11 | 2001-03-13 | Meco Sa Grenchen | Operating means with a seal, for a timepiece |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH495001A (de) * | 1968-11-07 | 1970-04-30 | Meyer & Co Ag | Vorrichtung zum Abdichten der Aufzugkrone einer Uhr |
JPS4967655U (fr) * | 1972-09-22 | 1974-06-13 | ||
US4440403A (en) * | 1977-05-30 | 1984-04-03 | Asahi Kogaku Kogyo Kabushiki Kaisha | Drop-proof and dust-proof device in rotary operation section of camera |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2771734A (en) * | 1953-05-06 | 1956-11-27 | Morf Ernest | Watch crown seal |
US2912819A (en) * | 1957-07-19 | 1959-11-17 | Joseph Waldman & Sons | Waterproof watch crown |
FR1205087A (fr) * | 1958-11-03 | 1960-01-29 | Cheval Freres Ets | Couronne de remontoir pour montre étanche |
-
1967
- 1967-05-09 CH CH652867A patent/CH473420A/fr not_active IP Right Cessation
-
1968
- 1968-05-07 US US727161A patent/US3475901A/en not_active Expired - Lifetime
- 1968-05-07 GB GB21590/68A patent/GB1224896A/en not_active Expired
- 1968-05-09 DE DE1773392A patent/DE1773392B2/de active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2771734A (en) * | 1953-05-06 | 1956-11-27 | Morf Ernest | Watch crown seal |
US2912819A (en) * | 1957-07-19 | 1959-11-17 | Joseph Waldman & Sons | Waterproof watch crown |
FR1205087A (fr) * | 1958-11-03 | 1960-01-29 | Cheval Freres Ets | Couronne de remontoir pour montre étanche |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3863438A (en) * | 1973-06-29 | 1975-02-04 | Rene Soguel | Device for insuring the tightness of a timepiece casing |
US4979156A (en) * | 1989-07-27 | 1990-12-18 | Kester Lynn C | Screw-on watch stem seal |
US6137750A (en) * | 1997-06-11 | 2000-10-24 | Meco Sa Grenchen | Safety valve for a timepiece |
US6200020B1 (en) * | 1997-06-11 | 2001-03-13 | Meco Sa Grenchen | Operating means with a seal, for a timepiece |
SG98363A1 (en) * | 1997-06-11 | 2003-09-19 | Meco Sa Grenchen | A safety valve for a timepiece |
Also Published As
Publication number | Publication date |
---|---|
CH473420A (fr) | 1969-07-15 |
CH652867A4 (fr) | 1969-01-31 |
GB1224896A (en) | 1971-03-10 |
DE1773392A1 (de) | 1971-06-09 |
DE1773392B2 (de) | 1975-11-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2771734A (en) | Watch crown seal | |
US3475901A (en) | Winding and hand-setting crown for diver watches | |
US3130539A (en) | Watch crown seal | |
US2237860A (en) | Fluidtight closure for watchcases | |
US4313187A (en) | Water resisting crown structure for electronic wristwatches | |
US3003601A (en) | Weld connection | |
JPS6341564B2 (fr) | ||
US6575619B1 (en) | Method for assembling a casing ring in a watch case and casing ring for such method | |
US2482317A (en) | Tight winding device for watches | |
US1910908A (en) | Watchcase | |
US3633356A (en) | Mechanism for detachably attaching a timepiece movement to a watch casing, especially the middle ring thereof | |
US3499281A (en) | Watch crown | |
US2985213A (en) | Peened mounting for nut-like member | |
US1962056A (en) | Spring-end connection | |
US2733567A (en) | Zellweger | |
US2773347A (en) | Winding crown for timepiece movement | |
US3469391A (en) | Device for fixing a wristband to a watch-case | |
US1292540A (en) | Watch. | |
US2405087A (en) | Tight winding device for timepieces | |
US2327112A (en) | Watchcase | |
US2302340A (en) | Waterproof watchcase | |
US3792576A (en) | Watertight watch | |
US3863438A (en) | Device for insuring the tightness of a timepiece casing | |
US3686883A (en) | Lockable crown for waterproof watch | |
US2218889A (en) | Tight winding device |