CA1195851A - Water-resistant fixing device of a mirror on an element of a watch case - Google Patents
Water-resistant fixing device of a mirror on an element of a watch caseInfo
- Publication number
- CA1195851A CA1195851A CA000426682A CA426682A CA1195851A CA 1195851 A CA1195851 A CA 1195851A CA 000426682 A CA000426682 A CA 000426682A CA 426682 A CA426682 A CA 426682A CA 1195851 A CA1195851 A CA 1195851A
- Authority
- CA
- Canada
- Prior art keywords
- watch
- fact
- glass
- water
- watch case
- 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
Links
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
- G04B39/00—Watch crystals; Fastening or sealing of crystals; Clock glasses
- G04B39/02—Sealing crystals or glasses
Landscapes
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Joining Of Glass To Other Materials (AREA)
- Rear-View Mirror Devices That Are Mounted On The Exterior Of The Vehicle (AREA)
- Electric Clocks (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE:
Water-resistant device for fixing a water glass to an element of a watch case. The lower face of the watch glass is provided with a peripheral bevel defining, in service position and with the frontal and lateral walls of a shoulder step formed by the watch case element, a recess having an O-ring seal.
Water-resistant device for fixing a water glass to an element of a watch case. The lower face of the watch glass is provided with a peripheral bevel defining, in service position and with the frontal and lateral walls of a shoulder step formed by the watch case element, a recess having an O-ring seal.
Description
The presen~ invention ~elates ~o A water-resistant device ~or fixing a watch glass on an element, a bezel or middle~bezel for examp~e, of a watch case.
Generall~, the m~ddle of a watch case is pro-vided with a shoulder step, definin~ a housing ~or the watch glass, Qn which the said watch glass res~s. The water~resistant flxation of the watch glass on said middle is obtained by placing a compressib~e gasket between the periphery o~ the watc~ glass and the middle of the watch ~0 case~ The compress~ble gasket has generally the shape of a I or of a L, it can sometimes be partially housed in a ~roove pro~lded in ~he middle to ascertain its axial positioning, In these realizations,-the upper face of the gasket is visible and this hurts the ~sthetical outlook of the watch. Furthermore, at the contact of air and dust, the gasket can be damaged. Finally, the aging of the gasket cause~ it to crack, causing defects of the water-resistance.
There are also watch cases in which the watch ~lass is glued in a housing o the middle part of the watch. In these latter xealizations, the replacem~nt of v the glass, when it is scratched for example, is difficult and the water~resistance is not guaranteed.
~5 The present invention has for its object water-resistant fixing of the watch glass on an element of a watch case, tending to overcome the drawbacks oE the aforesaid realizations More specifically, the object of the invention lies in the provision of a device for watertightly mounting a watch glass, having a lower face, on a watch case element defining a watch glass ope~ing shaped as a shoulder step formed by a front wall and a lateral wall, device characterized ~y the ~act that the watch glass is flat and has an outer ~imension corresponding to the opening;
~9s~
by the fac~ ~h~t ~h~ ~a~ g~ss lo~e~ f~ce co~priseS a pexiphe~l be~el de~in~r~n ser~içe positio~ and with the front and lateral ~alls, a ca~it~ having a triangular cross~section in which an ~r~ng se~ling gasket is compressed~ and b~ the f~ct that the watc~ glass is drl~en or glue~ into the watçh case ele~ent.
The attached drawing shows schematlcally and by wa~ of example t~70 embodiments of the water-resistant fixing device accordlng to the inYe~tion~
Figure 1 ls a parti~l cross-section of a watch case using the water-resistant fixing device f~r the watch glass, according to the in~ention.
Figure 2 is a partial cross-section on a larger scale of a watch case sho~ing one embodiment of the ~ater-resistant fixing de~ice for the watch glass, Figure 3 is a partial cross-section on a larger scale of a watch case showing another embodiment of the ~ater resistant flx~ng device.
In the embodiment shown at figure 3r the 2Q water-resistant de~ice for flxing t~e watch glass 1 on a mlddle 2 of the watch case comprises a shoulder step 3 provided in the middle 2 which can be separated from the upper face of this middle by a distance of 0,75 mm for example, This shoulder step is located on the whole periphery of the middle and determines a housing intended to receive the watch glass.
~ he watch glass 1 has a ~iameter or an outside dimension or the ~haped watch case, corresponding to the dimensions of the housing of the middle so that the watch glass is fastened in the housing of the middle.
Preferabl~, the watch glass 1 is dri~en in the said housing of the middle 2, but it could also be glued in said housing.
~ 2 ~s~
~e lo~er face o~' the ~irror comprlses a bevel 4 defining~ ln service p~sition,'an annular cavity With the angle of the houstng provided in th,e middle 2. An O-ring g~sket 5 ha~ing a circuIar s~ape or another shape, corresponding to the one of the ~ldd~e 2 is, ~n sexVice position, compressed in said ca~i~y which it fills practically en~lre~ and guarantees perfect water t~ghtness between the mlddle 2 and the glass 1~ This g~sket 5 is entirely protected and does not e~tend between the glass ~0 and the middle ~ic~ are in tight mechanica~ contact on a portion of the-thickness of the gl~ss 1~
For the ~asket 5 not to be ~islble through the watch glass l, it can be translucent or transparent, In another embodiment r th,e beveled face 4 of the glass 1 ~5 can be metallized or ground opaque t~us mak,ing the gasket 5.
In its non deformed state the gasket can have a section having a diameter of 0,3 mm for example.
The main ad~antages of this embodiment are that:
1. The gl~ss 1 is in mechanical contact with the middle 2, providing for a perfect fixing of the glass;
Generall~, the m~ddle of a watch case is pro-vided with a shoulder step, definin~ a housing ~or the watch glass, Qn which the said watch glass res~s. The water~resistant flxation of the watch glass on said middle is obtained by placing a compressib~e gasket between the periphery o~ the watc~ glass and the middle of the watch ~0 case~ The compress~ble gasket has generally the shape of a I or of a L, it can sometimes be partially housed in a ~roove pro~lded in ~he middle to ascertain its axial positioning, In these realizations,-the upper face of the gasket is visible and this hurts the ~sthetical outlook of the watch. Furthermore, at the contact of air and dust, the gasket can be damaged. Finally, the aging of the gasket cause~ it to crack, causing defects of the water-resistance.
There are also watch cases in which the watch ~lass is glued in a housing o the middle part of the watch. In these latter xealizations, the replacem~nt of v the glass, when it is scratched for example, is difficult and the water~resistance is not guaranteed.
~5 The present invention has for its object water-resistant fixing of the watch glass on an element of a watch case, tending to overcome the drawbacks oE the aforesaid realizations More specifically, the object of the invention lies in the provision of a device for watertightly mounting a watch glass, having a lower face, on a watch case element defining a watch glass ope~ing shaped as a shoulder step formed by a front wall and a lateral wall, device characterized ~y the ~act that the watch glass is flat and has an outer ~imension corresponding to the opening;
~9s~
by the fac~ ~h~t ~h~ ~a~ g~ss lo~e~ f~ce co~priseS a pexiphe~l be~el de~in~r~n ser~içe positio~ and with the front and lateral ~alls, a ca~it~ having a triangular cross~section in which an ~r~ng se~ling gasket is compressed~ and b~ the f~ct that the watc~ glass is drl~en or glue~ into the watçh case ele~ent.
The attached drawing shows schematlcally and by wa~ of example t~70 embodiments of the water-resistant fixing device accordlng to the inYe~tion~
Figure 1 ls a parti~l cross-section of a watch case using the water-resistant fixing device f~r the watch glass, according to the in~ention.
Figure 2 is a partial cross-section on a larger scale of a watch case sho~ing one embodiment of the ~ater-resistant fixing de~ice for the watch glass, Figure 3 is a partial cross-section on a larger scale of a watch case showing another embodiment of the ~ater resistant flx~ng device.
In the embodiment shown at figure 3r the 2Q water-resistant de~ice for flxing t~e watch glass 1 on a mlddle 2 of the watch case comprises a shoulder step 3 provided in the middle 2 which can be separated from the upper face of this middle by a distance of 0,75 mm for example, This shoulder step is located on the whole periphery of the middle and determines a housing intended to receive the watch glass.
~ he watch glass 1 has a ~iameter or an outside dimension or the ~haped watch case, corresponding to the dimensions of the housing of the middle so that the watch glass is fastened in the housing of the middle.
Preferabl~, the watch glass 1 is dri~en in the said housing of the middle 2, but it could also be glued in said housing.
~ 2 ~s~
~e lo~er face o~' the ~irror comprlses a bevel 4 defining~ ln service p~sition,'an annular cavity With the angle of the houstng provided in th,e middle 2. An O-ring g~sket 5 ha~ing a circuIar s~ape or another shape, corresponding to the one of the ~ldd~e 2 is, ~n sexVice position, compressed in said ca~i~y which it fills practically en~lre~ and guarantees perfect water t~ghtness between the mlddle 2 and the glass 1~ This g~sket 5 is entirely protected and does not e~tend between the glass ~0 and the middle ~ic~ are in tight mechanica~ contact on a portion of the-thickness of the gl~ss 1~
For the ~asket 5 not to be ~islble through the watch glass l, it can be translucent or transparent, In another embodiment r th,e beveled face 4 of the glass 1 ~5 can be metallized or ground opaque t~us mak,ing the gasket 5.
In its non deformed state the gasket can have a section having a diameter of 0,3 mm for example.
The main ad~antages of this embodiment are that:
1. The gl~ss 1 is in mechanical contact with the middle 2, providing for a perfect fixing of the glass;
2. The ~asket 5 is entirely protected, thereby preventing any accidental damage thereto and reducing its aging;
3. The ga~ket 5 is not visible.
4. This embodiment can be applied to circular or shaped watches and is particularly well adapted for extra-thin watches t since it takes little room, in height, permitting in certain cases to reduce the height of the watch case.
In the embodiment of the device shown in figures 1 and 2, the middle 2 further comprises an inclined face 6. This enables, for a same dimension of the gasket 5,-and thus of the ca~ity receiving it~ to reduce the length o~ the beveled face 4 of the glass and thus ~3S~5~
of the heig~t of the cavit~ e~abling a~so ~o reduce the thickness of the glass ~n.d of ~he shoulder Step of the middle.
Here aiso, t~e-glass 1 is driven ln or ylued in the houslng of the middle 2 and t~e ~asket ~s made in~isible either because it is translucent or by metalliza.tion or opa.que~g~inding of the beveled face of the glass 1~
Further to the above advantage, this second embodiment enables a further reduction in the ~hickness of the glass and of the ~atch case.
Preferably~ the beveled face 4 of the glass 1 forms an angle of 45 with the lower ~ace of the said glass 1.
In the embodiment of the device shown in figures 1 and 2, the middle 2 further comprises an inclined face 6. This enables, for a same dimension of the gasket 5,-and thus of the ca~ity receiving it~ to reduce the length o~ the beveled face 4 of the glass and thus ~3S~5~
of the heig~t of the cavit~ e~abling a~so ~o reduce the thickness of the glass ~n.d of ~he shoulder Step of the middle.
Here aiso, t~e-glass 1 is driven ln or ylued in the houslng of the middle 2 and t~e ~asket ~s made in~isible either because it is translucent or by metalliza.tion or opa.que~g~inding of the beveled face of the glass 1~
Further to the above advantage, this second embodiment enables a further reduction in the ~hickness of the glass and of the ~atch case.
Preferably~ the beveled face 4 of the glass 1 forms an angle of 45 with the lower ~ace of the said glass 1.
Claims (5)
1. A device for watertightly mounting a watch glass, having a lower face, on a watch case element defining a watch glass opening shaped as a shoulder step formed by a front wall and a lateral wall, device characterized by the fact that the watch glass is flat and has an outer dimension corresponding to said opening;
by the fact that said watch glass lower face comprises a peripheral bevel defining, in service position and with said front and lateral walls, a cavity having a triangular cross-section in which an O-ring sealing gasket is compressed, and by the fact that said watch glass is driven or glued into said watch case element.
by the fact that said watch glass lower face comprises a peripheral bevel defining, in service position and with said front and lateral walls, a cavity having a triangular cross-section in which an O-ring sealing gasket is compressed, and by the fact that said watch glass is driven or glued into said watch case element.
2. A device as claimed in claim 1, characterized by the fact that said bevel is metallized.
3, A device as claimed in claim 1, characterized by the fact that said bevel is ground.
4. A device as claimed in claim 1, characterized by the fact that said gasket is translucent or transparent.
5. A device as claimed in claims 1, 2 or 3, characterized by the fact that said front and lateral walls of said shoulder step are at right angles to one another.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH292482A CH652562GA3 (en) | 1982-05-11 | 1982-05-11 | |
| CH2924/82 | 1982-05-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1195851A true CA1195851A (en) | 1985-10-29 |
Family
ID=4244681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000426682A Expired CA1195851A (en) | 1982-05-11 | 1983-04-26 | Water-resistant fixing device of a mirror on an element of a watch case |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS58196478A (en) |
| CA (1) | CA1195851A (en) |
| CH (1) | CH652562GA3 (en) |
| DE (2) | DE3316327A1 (en) |
| FR (1) | FR2526970B1 (en) |
| GB (1) | GB2119975B (en) |
| IT (1) | IT1237344B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3736643A1 (en) * | 2019-05-08 | 2020-11-11 | Omega SA | Watertight watch case |
| EP3736644A1 (en) * | 2019-05-08 | 2020-11-11 | Omega SA | Watertight watch case |
| EP4194969A1 (en) * | 2021-12-07 | 2023-06-14 | The Swatch Group Research and Development Ltd | Sealed closing device for a watch case |
| EP4198646A1 (en) * | 2021-12-16 | 2023-06-21 | Omega SA | Watertight watch case with fastening seal |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH136A (en) * | 1889-01-24 | Hugo Steinke | Springless security lock | |
| CH5670A (en) * | 1892-09-01 | 1893-02-15 | Warwick Benjamin William | Self-rectifying flexible shaft or conductor for motion transmission |
| CH219201A (en) * | 1940-03-27 | 1942-01-31 | Morf Ernest | Shaped waterproof watch box. |
| CH281803A (en) * | 1948-12-23 | 1952-03-31 | Rolex Montres | Process for decorating a watch crystal and watch crystal obtained by this process. |
| GB1153764A (en) * | 1966-06-01 | 1969-05-29 | Piquerez Sa Ervin | Watertight Watch Case |
| FR2386852A1 (en) * | 1977-04-06 | 1978-11-03 | Citizen Watch Co Ltd | WATCH GLASS FIXING STRUCTURE |
| JPS609742Y2 (en) * | 1979-01-27 | 1985-04-05 | シチズン時計株式会社 | Fixed structure of watch case |
| GB2094034B (en) * | 1981-02-20 | 1985-01-30 | Citizen Watch Co Ltd | Structure of watch case |
-
1982
- 1982-05-11 CH CH292482A patent/CH652562GA3/fr unknown
-
1983
- 1983-04-21 IT IT8320710A patent/IT1237344B/en active
- 1983-04-26 CA CA000426682A patent/CA1195851A/en not_active Expired
- 1983-04-28 JP JP58074227A patent/JPS58196478A/en active Pending
- 1983-04-29 FR FR8307296A patent/FR2526970B1/en not_active Expired
- 1983-05-04 DE DE19833316327 patent/DE3316327A1/en not_active Withdrawn
- 1983-05-04 DE DE8313220U patent/DE8313220U1/en not_active Expired
- 1983-05-06 GB GB08312453A patent/GB2119975B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2526970B1 (en) | 1987-04-24 |
| DE3316327A1 (en) | 1983-11-17 |
| DE8313220U1 (en) | 1984-10-25 |
| GB8312453D0 (en) | 1983-06-08 |
| IT8320710A0 (en) | 1983-04-21 |
| GB2119975B (en) | 1985-11-06 |
| CH652562GA3 (en) | 1985-11-29 |
| GB2119975A (en) | 1983-11-23 |
| JPS58196478A (en) | 1983-11-15 |
| IT1237344B (en) | 1993-05-31 |
| FR2526970A1 (en) | 1983-11-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEC | Expiry (correction) | ||
| MKEX | Expiry |