US3686883A - Lockable crown for waterproof watch - Google Patents
Lockable crown for waterproof watch Download PDFInfo
- Publication number
- US3686883A US3686883A US131746A US3686883DA US3686883A US 3686883 A US3686883 A US 3686883A US 131746 A US131746 A US 131746A US 3686883D A US3686883D A US 3686883DA US 3686883 A US3686883 A US 3686883A
- Authority
- US
- United States
- Prior art keywords
- crown
- projection
- recess
- construction
- case body
- 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
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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
-
- 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
- G04B3/00—Normal winding of clockworks by hand or mechanically; Winding up several mainsprings or driving weights simultaneously
- G04B3/04—Rigidly-mounted keys, knobs or crowns
Definitions
- FIG/ FIGIZ 1 LOCKABLE CROWN FOR WATERPROOF WATCH BACKGROUND OF THE INVENTION SUMMARY THE INVENTION
- the crown and the case body of a waterproof watch can be locked together to prevent accidental rotation of the crown.
- one of these members has projections thereon and the other has matching recesses therein.
- the crown is rotated until the projections and the recesses are in registry and the crown is pushed toward the case body until it bottoms.
- an object of the present invention is to prevent damage to the seal of a waterproof watch by unintentional rotation of the crown.
- Another object of the invention is to prevent unintentional alteration of the time or day indicated bya watch as a result of unintentional rotation of the crown.
- FIG. 1 is an end view of the crown and part of the watch body
- FIG. 2 is a cross-sectional viewalong lines Il-II;
- FIG. 3 is a partial perspectiveview of a modified form of a crown and case body.
- the case body -11 is fitted with the crown 12.
- the pin 13 is fixed firmly in the case body 11.
- the crown 12 has grooves 14 which engage the pin 13 when the crown is depressed to a bottom position.
- the crown shown there are four rectangular grooves.
- both the grooves and the pin could have other shapes and the number of grooves could be varied as a means of selecting the maximum angle through which it would be necessary to rotate the crown to bring a groove into registry with the pin.
- FIG. 2 15 is a stem pipe on whichthe crown is mounted, 16 is a packing between the stem pipe and the crown and 17 is a ring for retaining the packing.
- the crown is pulled out to a neutral position, rotated until there is registry between the pin and the groove, and then the crown is pushed in until it bottoms.
- the neutral position can be provided in the form of backlash which is greater than the-angle through which the crown must be rotated to bring a groove into registry with the pin.
- an additional step in the distance through which the crown can be moved axially may be provided inwhich the crown can be rotated without either winding the watch or affecting its indication.
- the means for locking the crown against rotation can take a variety of forms.
- the pin could be mounted on the crown and matching recesses could be provided in the case body.
- a waterproof watch construction comprising a case body member, a crown member, one of said members having a projection thereon, and the other having a recess therein adapted to receive said projection, and stem pipe mounted in said case body and said crown member being slidably mounted on said stem pipe, there being a neutral position to which said crown member can be slidingly moved on said stem pipe in which said crown member can be rotated without rotating said stem pipe which would otherwise wind said watch or affect the time indication of said watch, the crown member being rotatable to bring said recess and said projection into registry and being then depressable to engage said projection with said recess, thereby locking said crown member against unintentional rotation, said crown member being disengageable from locked position by outward movement alone.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electric Clocks (AREA)
Abstract
Unintentional rotation of the crown of a waterproof watch and consequent impairment of the seal against entry of water is prevented by rotating the crown relative to the case body to bring a projection on one of these members into registry with a matching recess in the other and depressing the crown, thereby inserting the projection into the recess and locking the crown against rotation.
Description
United States Patent Tarusawa Aug. 29, 1972 [54] LOCKABLE CROWN FOR WATERPROOF WATCH [72] Inventor: Yasutaka Tarusawa,
Nagano, Japan Okaya,
[73] Assignee: Kabushiki Kaisha Suwa Seikosha,
Tokyo, Japan [22] Filed: April 6, 1971 [21] Appl. No.: 131,746
30 Foreign Application Priority Data April 9, 1970 Japan ..45/29796 [52] US. Cl. ..58/90 B [51] Int. Cl. ..G04b 37/08 [58] Field 0i Search.. ..58/90 R, 90 B, 95
[56] 8 References Cited UNITED STATES PATENTS 1,292,540 1/1919 Tough ..58/90 H v FOREIGN PATENTS OR APPLICATIONS 309,485 2/1930 Great Britain ..'...58/9O B Primary Examiner-Richard B. Wilkinson Assistant Examiner-George H. Miller, Jr. Attorney-Blum, Moscovitz, Friedman & Kaplan [57] ABSTRACT Unintentional rotation of the crown of a waterproof watch and consequent impairment of the seal against entry of water is prevented by rotating the crown relative to the case body to bring a projection on one of these members into registry with a matching recess in the other and depressing the crown, thereby inserting the projection into the recess and locking the crown against rotation.
7 Claims, 3 Drawing Figures PATENTED M19 2 9 1973 FIG/ FIGIZ 1 LOCKABLE CROWN FOR WATERPROOF WATCH BACKGROUND OF THE INVENTION SUMMARY THE INVENTION The crown and the case body of a waterproof watch can be locked together to prevent accidental rotation of the crown. For this purpose one of these members has projections thereon and the other has matching recesses therein. To lock the crown to the case body,
the crown is rotated until the projections and the recesses are in registry and the crown is pushed toward the case body until it bottoms.
Accordingly, an object of the present invention is to prevent damage to the seal of a waterproof watch by unintentional rotation of the crown.
Another object of the invention is to prevent unintentional alteration of the time or day indicated bya watch as a result of unintentional rotation of the crown.
Still other objects and advantages of the invention will in part be obvious and will in part be apparent from the specification.
The invention accordingly comprises the features of construction, combination of elements, and arrangement of parts which will be exemplified in the construction hereinafter set forth, and the. scope of the invention will be indicated in the claims.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an end view of the crown and part of the watch body;
FIG. 2 is a cross-sectional viewalong lines Il-II; and
FIG. 3 is a partial perspectiveview of a modified form of a crown and case body.
DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIG. 1, the case body -11 is fitted with the crown 12. The pin 13 is fixed firmly in the case body 11. The crown 12 has grooves 14 which engage the pin 13 when the crown is depressed to a bottom position. Inthe crown shown there are four rectangular grooves. Obviously both the grooves and the pin could have other shapes and the number of grooves could be varied as a means of selecting the maximum angle through which it would be necessary to rotate the crown to bring a groove into registry with the pin.
Turning to FIG. 2, 15 is a stem pipe on whichthe crown is mounted, 16 is a packing between the stem pipe and the crown and 17 is a ring for retaining the packing. In order to lock the crown without disturbing the indication of the watch, the crown is pulled out to a neutral position, rotated until there is registry between the pin and the groove, and then the crown is pushed in until it bottoms. The neutral position can be provided in the form of backlash which is greater than the-angle through which the crown must be rotated to bring a groove into registry with the pin. Alternatively an additional step in the distance through which the crown can be moved axially may be provided inwhich the crown can be rotated without either winding the watch or affecting its indication.
As is obvious, the means for locking the crown against rotation can take a variety of forms. Thus, the pin could be mounted on the crown and matching recesses could be provided in the case body.
In the variations described up to this point the pin and the grooveshave been parallel to the axis of the crown. However, radial projections and'recesses could also be used. Referring now to FIG. 3, radial, wedgeshaped projections 18 on the crown 12 can be brought into registry with recesses 19 in the case body 1 1. In the Examples shown, there are four wedges on the crown but, as is evident, even one wedge would be sufficient for most cases.
It will thus be seen that the objects set forth above, among those made apparent from the preceding description, are efficiently attained and, since certain changes may be made in the above construction without departing from the spirit and scope of the invention, it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.
It is also to be understood that the following claims are intended to cover all of the generic and specific features of the invention herein described, and all statements of the scope of the invention which, as a matter of language, might be said to fall therebetween.
What is claimed is:
l. A waterproof watch construction, comprising a case body member, a crown member, one of said members having a projection thereon, and the other having a recess therein adapted to receive said projection, and stem pipe mounted in said case body and said crown member being slidably mounted on said stem pipe, there being a neutral position to which said crown member can be slidingly moved on said stem pipe in which said crown member can be rotated without rotating said stem pipe which would otherwise wind said watch or affect the time indication of said watch, the crown member being rotatable to bring said recess and said projection into registry and being then depressable to engage said projection with said recess, thereby locking said crown member against unintentional rotation, said crown member being disengageable from locked position by outward movement alone.
2. The construction as defined in claim 1, wherein said projection is a pin firmly fixed in said case body member and said recess is a groove in the rim of said crown.
3. The construction as defined in claim 1, wherein said crown member is mounted for rotation on said case body member with sufficient backlash so that said crown member can be rotated to bringsaid recess into registry with said projection without disturbing the 7. The construction as defined in claim 6 wherein said projection is in said crown member, and said recess is in said case body member.
Claims (7)
1. A waterproof watch construction, comprising a case body member, a crown member, one of said members having a projection thereon, and the other having a recess therein adapted to receive said projection, and stem pipe mounted in said case body and said crown member being slidably mounted on said stem pipe, there being a neutral position to which said crown member can be slidingly moved on said stem pipe in which said crown member can be rotated without rotating said stem pipe which would otherwise wind said watch or affect the time indication of said watch, the crown member being rotatable to bring said recess and said projection into registry and being then depressable to engage said projection with said recess, thereby locking said crown member against unintentional rotation, said crown member being disengageable from locked position by outward movement alone.
2. The construction as defined in claim 1, wherein said projection is a pin firmly fixed in said case body member and said recess is a groove in the rim of said crown.
3. The construction as defined in claim 1, wherein said crown member is mounted for rotation on said case body member with sufficient backlash so that said crown member can be rotated to bring said recess into registry with said projection without disturbing the watch indication.
4. The construction as defined in claim 1, wherein said projection and said recess have axes parallel to the axis of said crown member.
5. The construction as defined in claim 1, wherein said projection and said recess have axes radial with respect to the axis of said crown.
6. The construction as defined in claim 5 wherein said projection and said recess are wedge-shaped.
7. The construction as defined in claim 6 wherein said projection is in said crown member, and said recess is in said case body member.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2979670 | 1970-04-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3686883A true US3686883A (en) | 1972-08-29 |
Family
ID=12285946
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US131746A Expired - Lifetime US3686883A (en) | 1970-04-09 | 1971-04-06 | Lockable crown for waterproof watch |
Country Status (3)
Country | Link |
---|---|
US (1) | US3686883A (en) |
GB (1) | GB1337846A (en) |
HK (1) | HK5277A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2600787A1 (en) * | 1986-06-24 | 1987-12-31 | Dupont S T | MANUAL CONTROL SYSTEM AND ITS USE IN A MULTI-FUNCTION WATCHMAKING MOVEMENT |
US6210034B1 (en) * | 1997-03-21 | 2001-04-03 | Cartier International B.V. | Devices for leakproofing instrument-control buttons, particularly for the winding and time-setting buttons of watches |
US20030030230A1 (en) * | 2001-07-28 | 2003-02-13 | Manufacture Jaeger-Lecoultre Sa | Sealed crown for watch casing |
US20080008053A1 (en) * | 2004-04-14 | 2008-01-10 | Meco Sa | Crown for Timepiece With Disconnecting Gear Device |
EP2390733A1 (en) * | 2010-05-27 | 2011-11-30 | Hartzband, Paul | Ornamental object with a mobile element |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1292540A (en) * | 1918-03-18 | 1919-01-28 | Dubois Watch Case Company | Watch. |
GB309485A (en) * | 1928-04-11 | 1930-02-13 | Georges Huguenin | Improvements in watches |
-
1971
- 1971-04-06 US US131746A patent/US3686883A/en not_active Expired - Lifetime
- 1971-04-19 GB GB2434171*A patent/GB1337846A/en not_active Expired
-
1977
- 1977-01-27 HK HK52/77A patent/HK5277A/en unknown
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1292540A (en) * | 1918-03-18 | 1919-01-28 | Dubois Watch Case Company | Watch. |
GB309485A (en) * | 1928-04-11 | 1930-02-13 | Georges Huguenin | Improvements in watches |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2600787A1 (en) * | 1986-06-24 | 1987-12-31 | Dupont S T | MANUAL CONTROL SYSTEM AND ITS USE IN A MULTI-FUNCTION WATCHMAKING MOVEMENT |
EP0251851A1 (en) * | 1986-06-24 | 1988-01-07 | S.T. DUPONT Société anonyme dite: | Manual setting device and its use in a multiple-function clockwork movement |
US6210034B1 (en) * | 1997-03-21 | 2001-04-03 | Cartier International B.V. | Devices for leakproofing instrument-control buttons, particularly for the winding and time-setting buttons of watches |
US20030030230A1 (en) * | 2001-07-28 | 2003-02-13 | Manufacture Jaeger-Lecoultre Sa | Sealed crown for watch casing |
US6902169B2 (en) * | 2001-07-28 | 2005-06-07 | Richemont International Sa | Sealed crown for watch casing |
US20080008053A1 (en) * | 2004-04-14 | 2008-01-10 | Meco Sa | Crown for Timepiece With Disconnecting Gear Device |
US7384190B2 (en) * | 2004-04-14 | 2008-06-10 | Meco Sa | Crown for timepiece with disconnecting gear device |
EP2390733A1 (en) * | 2010-05-27 | 2011-11-30 | Hartzband, Paul | Ornamental object with a mobile element |
WO2011147955A1 (en) * | 2010-05-27 | 2011-12-01 | Hartzband, Paul | Finery object having a movable element |
Also Published As
Publication number | Publication date |
---|---|
GB1337846A (en) | 1973-11-21 |
HK5277A (en) | 1977-02-04 |
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