EP3736643A1 - Boite de montre etanche - Google Patents
Boite de montre etanche Download PDFInfo
- Publication number
- EP3736643A1 EP3736643A1 EP19173326.0A EP19173326A EP3736643A1 EP 3736643 A1 EP3736643 A1 EP 3736643A1 EP 19173326 A EP19173326 A EP 19173326A EP 3736643 A1 EP3736643 A1 EP 3736643A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- crystal
- watch case
- annular
- seal
- peripheral surface
- 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.)
- Pending
Links
- 239000013078 crystal Substances 0.000 claims abstract description 97
- 230000002093 peripheral effect Effects 0.000 claims abstract description 29
- 230000009189 diving Effects 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 230000000295 complement effect Effects 0.000 claims abstract description 6
- 229910052751 metal Inorganic materials 0.000 claims description 27
- 239000002184 metal Substances 0.000 claims description 27
- 229910000808 amorphous metal alloy Inorganic materials 0.000 claims description 23
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 16
- 239000011521 glass Substances 0.000 claims description 12
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 12
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 7
- 229910052726 zirconium Inorganic materials 0.000 claims description 7
- 229910052763 palladium Inorganic materials 0.000 claims description 4
- 229910052697 platinum Inorganic materials 0.000 claims description 4
- 238000005034 decoration Methods 0.000 claims 1
- 238000010147 laser engraving Methods 0.000 claims 1
- 239000005300 metallic glass Substances 0.000 abstract description 17
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 11
- 239000010936 titanium Substances 0.000 description 10
- 150000002739 metals Chemical class 0.000 description 8
- 229910045601 alloy Inorganic materials 0.000 description 7
- 239000000956 alloy Substances 0.000 description 7
- 229910052594 sapphire Inorganic materials 0.000 description 7
- 239000010980 sapphire Substances 0.000 description 7
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 6
- 238000002425 crystallisation Methods 0.000 description 6
- 230000008025 crystallization Effects 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 238000007789 sealing Methods 0.000 description 6
- 229910052719 titanium Inorganic materials 0.000 description 6
- 238000001816 cooling Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000005266 casting Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000009477 glass transition Effects 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009750 centrifugal casting Methods 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 230000005226 mechanical processes and functions Effects 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 230000007704 transition Effects 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
- G04B39/00—Watch crystals; Fastening or sealing of crystals; Clock glasses
- G04B39/02—Sealing crystals or glasses
-
- 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
-
- 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
- G04B37/0008—Cases for pocket watches and wrist watches
-
- 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
- G04B37/08—Hermetic sealing of openings, joints, passages or slits
- G04B37/084—Complete encasings for wrist or pocket watches without means for hermetic sealing of winding stem or crown
-
- 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
- G04B37/088—Means affording hermetic sealing inside the case, e.g. protective case for the clockwork against dust, the escapement being in a hermetically sealed case
-
- 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
- G04B39/025—Sealing crystals or glasses without special sealing parts
-
- 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
- G04B45/00—Time pieces of which the indicating means or cases provoke special effects, e.g. aesthetic effects
- G04B45/0084—Pictures or inscriptions on the case or parts thereof, attaching complete pictures
Definitions
- the present invention relates to a waterproof watch case, in particular for a diving watch.
- the watch case which comprises a watch movement or a time-based watch module, must be closed in a well-sealed manner.
- the watch case comprises a case back fixed in a sealed manner to a first side of a middle part and a crystal fixed to a second opposite side of the middle part. Sealing gaskets are provided for the assembly of the back, the caseband and the watch crystal.
- a member for controlling or adjusting the functions of the watch is also mounted in a sealed manner through the middle part of the case in the rest position.
- watch cases are not configured or assembled to withstand high water pressures, for example during a dive, given that the pressure inside the watch case is close to atmospheric pressure.
- Simple gaskets of traditional watches are not sufficient to guarantee a good watertightness of the case when diving to very great depths underwater.
- the watch case consists of a crystal fixed on an upper side to a caseband-bezel and a caseback fixed to the caseband by screwing it to an internal thread of the caseband.
- the crystal is fixed to the middle part by an annular seal in the shape of a toric and rests on a middle edge.
- a seal is also provided between an outer edge of the back and a lower surface of the caseband.
- a strong metal cup is still provided to bear against an interior surface of the back and against an interior edge of the caseband.
- this does not make it possible to guarantee good sealing of the case during diving to very great depths underwater, which constitutes a drawback.
- the patent CH 372 606 describes a waterproof watch case, which has a central part or middle part surrounding a back and closed by a crystal. A threaded ring bears against an inclined outer surface of the caseback to retain it, and is screwed to a fastening portion connected to the caseband. With such an arrangement presented, this does not make it possible to guarantee good sealing of the box during diving to very great depths underwater, which constitutes a drawback.
- the main aim of the invention is therefore to overcome the drawbacks of the state of the art described above by providing a watertight watch case suitable for withstanding high water pressure for diving at great depths. under water.
- the present invention relates to a waterproof watch case, which comprises the features of independent claim 1.
- An advantage of the watertight watch case is that the crystal is attached to the middle part by means of a one-piece metal seal and with inclined contact surfaces of the middle part and the crystal.
- the metal fixing gasket has a shape complementary to fixing surfaces before the operation of fixing the crystal to the caseband.
- conical bearing surfaces are provided on the crystal and the middle part, or even on the back mounted on an opposite side of the middle part. In this way, pressure forces on the crystal and the back are transmitted to the caseband via conical bearing surfaces and via the one-piece metal seal.
- the fixing of the crystal to the middle part by means of the fixing seal can be done in particular by hot forming. This makes it possible to avoid stress concentrations, to achieve good resistance of the crystal and to achieve very good sealing of the watch case.
- the heated amorphous metal gasket is in a softened state so as to be well applied on the contact surface of the crystal and the contact surface of the middle part, filling everything in. interstice of the surface condition of each contact surface.
- the amorphous metal gasket serves as a stress interface between the caseband and the crystal as the thermal expansion coefficient of the caseband, for example in titanium, is greater than that of the sapphire crystal, for example.
- the figures 1a and 1b show an embodiment of a watch case 1, which can be used for a diving watch.
- the watch case 1 essentially comprises a crystal 3, which can be made of sapphire or mineral glass, fixed on an upper side of a caseband 2, and possibly a back 4 mounted on a lower side of the caseband 2.
- a bezel 7 can also be mounted on the upper side of the middle part 2.
- a movement or watch module 10 is arranged in the watch case 1 in a casing circle 8, and at least one control member, not shown, can be mounted in a sealed manner in the rest position on or through the middle 2 for setting the time, date or other functions of the diving watch.
- the solid back 4 may include an annular edge 14 with internal thread to be screwed onto a thread 26 on the lower side of the caseband 2.
- a surface of annular support 24 of the back 4 comes into contact with an annular interior surface 32 of the middle part 2 of a shape complementary to the support surface 24 during the mounting of the back 4 on the middle part 2.
- the support surfaces 24 and interior 32 are inclined at a determined angle with respect to an axis perpendicular to a watch case plane 1.
- the surfaces 24, 32 are of conical shape and inclined towards the inside of watch case 1 at an angle determined from a central axis of watch case 1. This means that the top of each cone shape is towards the inside of watch case 1.
- the lower side of the caseband 2 further comprises an annular groove 16 housing a gasket O-ring seal 6 in contact with the bearing surface 24 when mounting the back 4 on the middle 2.
- the angle can be of the order of 60 ° ⁇ 5 ° with respect to the central axis. This makes it possible to have a good distribution of the stresses between the bottom 4 and the middle 2 due to the pressure of the water during diving at great depths underwater.
- the crystal 3 comprises an annular peripheral surface 13 to be fixed by means of a one-piece metal seal 5, 5 'for fixing to an annular inner surface 12 on the upper side of the middle part 2.
- the annular inner surface 12 is preferably of complementary shape to the annular peripheral surface 13.
- the seal 5, 5 ', as an interface between the middle part 2 and the crystal 3, can also be produced before the fixing operation with a complementary shape to the contact surfaces of the crystal 3 on the caseband 2.
- the annular peripheral surface 13 of the crystal 3 is inclined at a defined angle smaller than 90 ° with respect to an axis perpendicular to a watch case plane 1.
- the inner surface ring 12 is inclined generally towards the inside of the box of watch 1 at the same angle as the annular peripheral surface 13 with respect to a central axis.
- the middle part 2 is generally cylindrical in shape
- the peripheral inner surface 13 and the annular inner surface 12 are conical in shape and inclined at a defined angle towards the inside of the watch case.
- the defined angle of inclination of surfaces 12 and 13 can be of the order of 43 ° ⁇ 5 ° from to the central axis. This makes it possible to have a good distribution of the stresses between the crystal 3 and the caseband 2 due to the pressure of the water during diving at great depths underwater.
- the difference in water pressure relative to the pressure inside the watch case 1 tends to close any gap remaining between the surfaces 12, 13 in contact and the seal 5, 5 ′ for fixing thanks to the The inclination of the contact surfaces towards the inside of the watch case 1. This guarantees a good seal and resistance to high pressures.
- the one-piece metal fixing seal 5, 5 ' is made of amorphous metal or metal glass or amorphous metal alloy. It can include a first part 5 and a second part 5 '.
- the fixing gasket 5, 5 ′ is of annular shape for the hermetic closing of the crystal 3 on the middle part 2.
- the first part 5 of the gasket is of conical shape, while the second part 5 'is cylindrical.
- the length of the first part 5 in cross section can be of the order of 5 mm, while the height of the second part of the seal 5, 5 ′ can be of the order of 2.5 mm.
- the thickness of the seal can be of the order of 0.65 mm.
- the one-piece metal seal 5, 5 ′ for fixing the annular shape is made of an amorphous metal alloy so as to fix the crystal 3 to the middle 2, for example by hot deformation.
- fixing the crystal 3 to the caseband 2 one seeks to completely fill the space between the crystal 3 and the caseband 2.
- the seal with pressure of the crystal 3 on the caseband 2
- the The heat-softened amorphous metal seal completely matches the surface finish of the crystal 3 and the caseband 2, which guarantees a good hermetic seal.
- the metal also compensates for a possible defect of angles between the conical surface of the crystal 3 and the conical surface of the middle part 2, and thus makes it possible to ensure a perfect contact between the crystal 3 and the middle part 2, which reduces high stress concentrations during pressurization.
- This is very important because the crystal 3 is generally made of a fragile material, such as sapphire or mineral glass. Thus, a very localized contact of the crystal 3 on the middle part 2 risks causing a break when pressurizing under water.
- the amorphous metal gasket 5, 5 ′ serves as an interface between the middle part 2 and the crystal 3.
- this seal also serves to accumulate stresses during the cooling operation. This is important because the thermal expansion coefficient of the titanium middle part 2 is greater than the contact surface of the sapphire crystal 3.
- the alloy of amorphous metals can be mainly composed of zirconium, which makes it possible to form the seal at a temperature above 350 ° C, that is to say above the glass transition temperature. of the alloy.
- the zirconium-based amorphous metal alloy can be composed of Zr (52.5%), Cu (17.6%), Ni (14.9%), Al (10%) and Ti (5%).
- the zirconium-based amorphous metal alloy can also include Zr (58.5%), Cu (15.6%), Ni (12.8%), Al (10.3%) and Nb (2.8%).
- the zirconium-based amorphous metal alloy can also include Zr (44%), Ti (11%), Cu (9.8%), Ni (10.2%) and Be (25%), or finally Zr (58%) , Cu (22%), Fe (8%) and Al (12%).
- the alloy of amorphous metals may be mainly composed of platinum (Pt), which makes it possible to form the seal at a temperature above 230 ° C.
- the platinum-based amorphous metal alloy can include Pt (57.5%), Cu (14.7%), Ni (5.3%) and P (22.5%). Provision may also be made to produce the one-piece metal seal 5, 5 'from an alloy of amorphous metals based mainly on palladium (Pd, which makes it possible to form the seal at a temperature above 300 ° C.
- a titanium-based amorphous metal alloy can include Ti (41.5%), Zr (10%), Cu (35%), Pd (11%) and Sn (2.5%).
- An alloy of amorphous metals based on palladium may include Pd (43%), Cu (27%), Ni (10%) and P (20%), or Pd (77%), Cu (6%) and Si ( 16.5%), or finally Pd (79%), Cu (6%), Si (10%) and P (5%).
- a nickel-based amorphous metal alloy can include Ni (53%), Nb (20%), Ti (10%), Zr (8%), Co (6%) and Cu (3%), or Ni (67%), Cr (6%), Fe (4%), Si (7%), C (0.25%) and B (15.75%), or finally Ni (60 %), Pd (20%), P (17%) and B (3%).
- An iron-based amorphous metal alloy can include Fe (45%), Cr (20%), Mo (14%), C (15%) and B (6%), or Fe (56%), Co ( 7%), Ni (7%), Zr (8%), Nb (2%) and B (20%).
- a gold-based amorphous metal alloy can include Au (49%), Ag (5%), Pd (2.3%), Cu (26.9%) and Si (16.3%).
- annular fastening joint with the first part 5 of conical shape and the second part 5 'of cylindrical shape is shown in a three-dimensional partial sectional view at the bottom. figure 2a .
- This form of two-part seal 5, 5 ' is used for fixing the crystal 3 to the middle 2 as shown in figures 2b and 2c .
- the gasket 5, 5 ' is first of all placed on the upper side of the caseband 2.
- the first part 5 of the gasket is in contact with the annular inner surface 12, while the second part 5' is close to the wall annular interior 22 of the middle 2.
- the crystal 3 is mounted on the seal 5, 5 '.
- the annular peripheral surface 13 of the lens 3 is in contact with the first part 5 of the seal, while the annular outer wall 23 ice 3 above the annular peripheral surface 13 is close to the second part 5 'of the seal.
- the seal 5, 5 ' is placed between the middle part 2 and the crystal 3.
- an anti-overflow tool MC is placed on the upper side of the caseband 2 and in contact with the annular outer wall 23 of the crystal 3.
- This anti-overflow tool MC is used to prevent the amorphous metal alloy of the seal from coming out of the upper side of the caseband 2.
- Another anti-overflow tool not shown in underside of the inner side of the watch case to prevent the amorphous metal alloy of the gasket from coming out of the underside.
- a high tool MH presses the crystal 3 towards the case 2, while a low tool MB holds the lower side of the case 2 in support.
- a pressure of the order of 10,000 to 80,000 N is applied to the crystal 3 on the caseband 2 at a temperature of the order of 480 ° C. for a period of 30 - 250 seconds.
- the pressure exerted by the sapphire 3 on the part 5 of the seal causes the material contained in the part 5 of the seal to flow towards the part 5 'as well as downwards.
- the consequences are a downward displacement of the glass 3 and a thinning of the part 5 of the seal until the seal completely fills the space between the caseband 2, the anti-overflow tool MC, the interior anti-overflow tool and ice 3.
- the amorphous metal gasket will, during its flow, mold all the details of surfaces 12, 13, 22 and 23.
- the dimensions of the caseband 2, of the seal 5, 5 'and of the crystal 3 will want to decrease proportionally to their respective coefficients of expansion ⁇ .
- ⁇ 8.5 to 11 ppm for titanium, 12 to 18 ppm for stainless steel; 12 to 16 for gold
- amorphous metals in particular their very high elastic limit ⁇ e (eg: 1700 MPa for a Zr base; 1550 MPa for a Pd base; 1350 MPa for a Pt base) coupled with an elastic deformation Very high ⁇ e (1.5 to 2% for all amorphous metals), make it possible to avoid plasticization of the seal 5, 5 ′ in its zone of contact with the glass 3 during stress at very high pressures.
- Caseband 2 whose mechanical properties (e.g.
- the fixing of the crystal 3 to the caseband 2 by means of the seal 5, 5 ' is carried out at a temperature of the order of 380 ° C. by applying a pressure of approximately 10,000 - 80,000 N for 30 - 250 seconds.
- the fixing of the crystal 3 to the caseband 2 by means of the seal 5, 5 ' is carried out at a temperature of the order of 280 ° C by applying a pressure of approximately 10,000 - 80,000 N for 30 - 250 seconds.
- Another way of reducing the stresses in the glass 3 after the assembly process, as described above, is to partially or totally crystallize the seal 5, 5 'of amorphous metal.
- crystallization generates a reduction in the volume of the amorphous metal and therefore of the seal 5, 5 ', which slightly detaches the middle-seal and seal-glass contact surfaces.
- the differential retraction of the caseband 2 must first compensate for the vacuum left by the crystallization of the amorphous metal before starting to tighten on the crystal 3.
- the residual stresses in the sapphire are less compared to a gasket. 100% amorphous.
- the crystallization of the seal 5, 5 ′ can take place by maintaining the assembly at a temperature for a long time after the forming phase. For example, for the case of a zirconium-based alloy, holding for 5 min at 480 ° C. can generate crystallization of the seal. It is also possible to increase the temperature from 20 ° C to 100 ° C after the creep phase in order to accelerate crystallization or to modify its nature (different crystalline phases). It is also possible to decrease the temperature after the creep phase in order to obtain a slower and finer crystallization.
- the figure 2c shows the result of attaching crystal 3 to caseband 2 after removing the tools used for it.
- a bezel 7 covers the upper side of the middle part 2.
- the first part 5 of the gasket fixedly connects the annular peripheral surface 13 of the crystal 3 to the annular inner surface 12 of the middle part 2.
- the second part 5 'of the gasket fixedly connects the annular inner wall 22 of the middle part 2 and the annular outer wall 23 of the crystal 3. Normally the first part 5 of the seal extends below the level of the connection between the bottom of the crystal 3 and the caseband 2, which therefore does not include the inner spout presented to figures 2b and 2c .
- the figure 3 shows a partial detail section of a variant of the attachment of the crystal 3 to the caseband 2.
- the crystal 3 comprises an annular peripheral surface 13 to be fixed by means of a one-piece metal seal 5, 5 'for fixing on an annular inner surface 12 on the upper side of the middle part 2.
- the middle part 2 is generally cylindrical in shape
- the peripheral inner surface 13 of the crystal 3 is conical in shape
- the annular inner surface 12 of the middle part 2 is in the plane of the watch case 1 in the form of a portion of a disc.
- the first part 5 of the seal is between the peripheral inner surface 13 and the annular inner surface 12, while the second part 5 'of the seal is between the annular inner wall 22 of the caseband 2 and the annular outer wall 23 of the crystal 3 .
- the figure 4 schematically shows a top view of an embodiment of a watch case 1.
- the watch case 1 comprises the middle part 2, the crystal 3, a bezel 7 and a control member 9 in the form of a stem-crown passing through the middle part 2.
- the stem-crown comprises a conical surface, not shown in contact with a conical inner surface of the middle part 2 in the rest position to ensure tightness and resistance to water pressure in diving.
- An inscription 103 of a word or of a number or of drawings is made at the connection of the annular peripheral surface 13 of the glass 3 on the first part of the fixing joint.
- the inscription 103 may also be provided to have a contact surface of the glass 3 structured and / or with a decorative layer deposited on its surface.
- This structuring and / or deposit 63 can be placed on the annular peripheral surface 13 of the crystal 3. It can also be envisaged to write a or several words, or numbers or patterns by etching the deposit 63 by means of a laser beam L coming from a laser device 50.
- the deposit 63 may be of a different color from the first part of the fixing joint. Therefore after the engraving of the inscription 103 on the deposit 63, the annular peripheral surface 13 of the crystal 3 can be placed or fixed on the first part of the fixing joint, which is of a different color than the deposit 63 .
- the watch case by its middle part may have a general shape different from a cylinder.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Gasket Seals (AREA)
- Electric Clocks (AREA)
- Joining Of Glass To Other Materials (AREA)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19173326.0A EP3736643A1 (fr) | 2019-05-08 | 2019-05-08 | Boite de montre etanche |
US16/846,811 US11768469B2 (en) | 2019-05-08 | 2020-04-13 | Water-resistant watch case |
JP2020075898A JP6994075B2 (ja) | 2019-05-08 | 2020-04-22 | 耐水性の携行型時計ケース |
RU2020115125A RU2750662C1 (ru) | 2019-05-08 | 2020-04-29 | Корпус водонепроницаемых часов |
CN202010377805.3A CN111913384B (zh) | 2019-05-08 | 2020-05-07 | 防水表壳 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19173326.0A EP3736643A1 (fr) | 2019-05-08 | 2019-05-08 | Boite de montre etanche |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3736643A1 true EP3736643A1 (fr) | 2020-11-11 |
Family
ID=66448483
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19173326.0A Pending EP3736643A1 (fr) | 2019-05-08 | 2019-05-08 | Boite de montre etanche |
Country Status (5)
Country | Link |
---|---|
US (1) | US11768469B2 (zh) |
EP (1) | EP3736643A1 (zh) |
JP (1) | JP6994075B2 (zh) |
CN (1) | CN111913384B (zh) |
RU (1) | RU2750662C1 (zh) |
Citations (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH217284A (fr) * | 1941-01-18 | 1941-10-15 | Schmitz Otto | Boîte de montre étanche. |
CH251697A (fr) * | 1944-05-17 | 1947-11-15 | Colomb Henri | Boîte étanche pour montres et appareils de mesure. |
US2951333A (en) * | 1956-11-30 | 1960-09-06 | Morf Ernest | Watertight wrist-watch case |
CH372606A (de) | 1961-09-19 | 1963-06-29 | Bloesch S A | Wasserdichtes Formuhrgehäuse |
CH378792A (fr) * | 1962-06-14 | 1963-11-30 | Longines Montres Comp D | Boîte de montre étanche |
GB1153764A (en) * | 1966-06-01 | 1969-05-29 | Piquerez Sa Ervin | Watertight Watch Case |
JPS60247187A (ja) * | 1984-05-22 | 1985-12-06 | Citizen Watch Co Ltd | 腕時計のケ−スとガラスの固定構造 |
CH659561GA3 (en) * | 1984-12-27 | 1987-02-13 | Waterproof watch case | |
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- 2020-04-22 JP JP2020075898A patent/JP6994075B2/ja active Active
- 2020-04-29 RU RU2020115125A patent/RU2750662C1/ru active
- 2020-05-07 CN CN202010377805.3A patent/CN111913384B/zh active Active
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Also Published As
Publication number | Publication date |
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JP6994075B2 (ja) | 2022-01-14 |
US11768469B2 (en) | 2023-09-26 |
JP2020183948A (ja) | 2020-11-12 |
CN111913384B (zh) | 2022-06-10 |
RU2750662C1 (ru) | 2021-06-30 |
US20200356061A1 (en) | 2020-11-12 |
CN111913384A (zh) | 2020-11-10 |
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