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EP4145229A1 - Zeigeranzeige für uhr - Google Patents

Zeigeranzeige für uhr Download PDF

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Publication number
EP4145229A1
EP4145229A1 EP22203199.9A EP22203199A EP4145229A1 EP 4145229 A1 EP4145229 A1 EP 4145229A1 EP 22203199 A EP22203199 A EP 22203199A EP 4145229 A1 EP4145229 A1 EP 4145229A1
Authority
EP
European Patent Office
Prior art keywords
section
needle
indicator
hand
timepiece
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
Application number
EP22203199.9A
Other languages
English (en)
French (fr)
Inventor
Stéphane OES
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Patek Philippe SA Geneve
Original Assignee
Patek Philippe SA Geneve
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Patek Philippe SA Geneve filed Critical Patek Philippe SA Geneve
Priority to EP22203199.9A priority Critical patent/EP4145229A1/de
Publication of EP4145229A1 publication Critical patent/EP4145229A1/de
Pending legal-status Critical Current

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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
    • G04B19/00—Indicating the time by visual means
    • G04B19/04—Hands; Discs with a single mark or the like
    • G04B19/042—Construction and manufacture of the hands; arrangements for increasing reading accuracy

Definitions

  • the present invention relates to an indicator hand for a timepiece and a timepiece provided with such a hand.
  • the hour and minute indicator hands rotate above a dial bearing indications.
  • the dial includes areas dedicated to displaying auxiliary information such as the date, the month, the day of the week, the moon phases, the hours and minutes of chronograph, etc.
  • the dial can thus comprise one or more apertures through each of which is visible an indication carried by a disc rotating under the dial.
  • the dial can also carry indications with which cooperate small hands located at a lower height than that of the hour and minute hands.
  • the second section can be a distal end part of the body.
  • the first section can extend from the fixing part to the second section.
  • the first section can bear the antireflection coating over its entire surface.
  • the transparent material can be glass or sapphire.
  • the second section can be made of said transparent material but can be surface-treated to be opaque or less transparent than the first section, at least when the needle is seen from above.
  • the second section can be made of said transparent material but can carry a layer which makes it opaque or less transparent than the first section, at least when the needle is seen from above.
  • Said layer can be a paint layer or a metal layer.
  • all or part of the surface of the second section can be frosted or textured to make the second section opaque or less transparent than the first section, at least when the needle is seen from above.
  • the indicator needle may be in one piece.
  • the top surface of the first section may be chamfered.
  • the upper surface of the first section can be curved, without an edge.
  • At least the surface or surfaces of the first section that carry the antireflection coating can be polished.
  • the body can be hollowed out.
  • the present invention further proposes a timepiece comprising an indicator hand as defined above.
  • the indicator hand can be arranged to pivot above a dial, the first section allowing the indicator hand to pass over at least one information zone of the dial without masking it even partially.
  • THE figures 1 to 3 on the one hand and 4 to 6 on the other hand show two examples of an indicator hand for a timepiece, in particular for a wristwatch, pocket watch or clock, according to the invention.
  • Needle 1a illustrated in figures 1 to 3 is for example an hour or minute indicator hand or a chronograph hand.
  • Needle 1b illustrated in figures 4 to 6 is for example a hand indicating the number of the week in the year (weekly).
  • Each of these needles 1a, 1b comprises a fixing part 10a, 10b pierced with a hole 11a, 11b allowing the assembly of the needle by driving in, gluing, brazing or other on an axis. From the fixing part 10a, 10b extends radially a body 12a, 12b.
  • the body 12a, 12b consists of a first section 13a, 13b and a distal end section 14a, 14b, the latter constituting the indicator part of the needle intended to cooperate with the numbers and/or indexes of a graduation.
  • the body 12a of the needle 1a has a tapered shape from one end to the other and its distal end section 14a is therefore the thinnest part of the body 12a.
  • the body 12b of the needle 1b has a T-shape with a straight first section 13b terminated by the distal end section 14b having the shape of an arc of a circle transverse to the first section 13b.
  • the needle 1a further comprises a counterweight 15a extending from the fixing part 10a in the opposite direction to the body 12a.
  • the first section 13a, 13b is made entirely of a transparent material, preferably of glass, in particular of tempered glass, or of sapphire.
  • this first section 13a, 13b bears an antireflection coating 16a, 16b at least on its upper surface 17a, 17b and/or on its lower surface 18a, 18b, and preferably over its entire surface, the upper surface 17a, 17b being the surface seen by the user when looking at the dial of the timepiece from above (or from the front).
  • the anti-reflective coating 16a, 16b can be of the same type as those used for watch crystals. Thanks to its transparent material and the anti-reflective coating 16a, 16b, the first section 13a, 13b is almost invisible to the user and therefore does not hide the information carried by the dial.
  • the hand can therefore move above information areas of the dial, such as for example an aperture 2 ( figure 7 ) or a zone 3 dedicated to a chronograph counter ( figure 8 ) and cooperating with a small needle (not shown).
  • the hand according to the invention designated by 4
  • points towards a scale 6 which is associated with it to display information of a different nature from that of zones 2 and 3. Which whatever the speed of movement of the needle 4, the reading of the information displayed in the window 2 or in the counter display zone 3 will not be hindered, even partially.
  • the transparency of hand 4 can also be useful to avoid masking other (large) hands pivoting in the center of dial 5.
  • At least the surface(s) of the first section 13a, 13b which carry the antireflection coating 16a, 16b are polished.
  • the entire surface of the first section 13a, 13b is polished before the application of the antireflection coating 16a, 16b.
  • its distal end section 14a, 14b is opaque or less transparent than the first section 13a, 13b, at least when the needle 1a, 1b, 4 and dial 5 are seen from above (or from the front), so as to be visible to the user.
  • the needle 1a, 1b is in one piece, made of glass or sapphire, and bears the antireflection coating 16a, 16b over its entire surface, and its distal end section 14a, 14b is made of further surface treated to be opaque or less transparent than the first section 13a, 13b.
  • the surface treatment of the distal end section 14a, 14b may consist in depositing on the latter an opaque layer 19a, 19b, for example a layer of paint or a metal layer. This opaque layer 19a, 19b can be deposited only on the upper surface and/or on the lower surface, or on the entire surface of the distal end section 14a, 14b.
  • This opaque layer 19a, 19b can be deposited in different ways, for example by deposit physical vapor deposition (PVD) or chemical vapor deposition (CVD) in the case of a metallic coating.
  • the surface treatment of the distal end section 14a, 14b may consist of roughening or laser texturing of all or part of the surface of the section 14a, 14b.
  • an intermediate piece for example made of brass, can be brazed or fixed elastically in the hole 11a, 11b then driven on the axis.
  • the transparent material chosen in the present invention is a low density material which gives the needle 1a, 1b low inertia.
  • the needle 1a, 1b in particular when it is made of sapphire, can be obtained by an engraving technique.
  • the preferred manufacturing method in the present invention in particular when the needle 1a, 1b is made of glass, is 3D printing, more particularly the technique known under the name FEMTOPRINT (registered trademark) which makes it possible to obtain shapes complex and hollowed out to lighten the part and thus further reduce its inertia.
  • Needle 1a illustrated in figures 1 to 3 has its upper surface which is chamfered, giving the upper surface of the body 12a, in particular the upper surface 17a of the first section 13a, a faceted shape (cf. picture 3 ) which lightens the needle and improves its aesthetics.
  • the body 12a is further lightened by a groove 20a formed in its lower surface.
  • the first section 13b of the body 12b of the needle 1b illustrated in figures 4 to 6 is a half-cylinder (cf. figure 6 ).
  • the upper surface 17b of this first section 13b is thus curved, without edges. This shape also lightens the needle and improves its aesthetics.
  • the needle 1a can be hollowed out in different ways than that illustrated in figures 2 and 3 .
  • the recess could be made essentially inside the needle without, or almost, an outlet to the outside, as the FEMTOPRINT process allows.
  • the thickness e of the body 12a, 12b can be variable, as shown in figure 1 for the body 12a, in order to better distribute the stresses and in particular to increase its stiffness where the forces are highest, namely near the fixing part 10a, 10b.
  • the height h of the body 12a, 12b can be variable for a better distribution of the stresses.
  • the needle according to the invention can also have a non-rectilinear profile, of curved shape or with recesses, for example to follow a curvature of the dial or to pass over the barrel of another needle or of another three-dimensional organ. while keeping the indicator part of the hand close to the dial.
  • the body of the needle according to the invention could have several opaque parts serving as indicator parts and several first transparent sections bearing an anti-reflective coating.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
EP22203199.9A 2018-10-18 2018-10-18 Zeigeranzeige für uhr Pending EP4145229A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP22203199.9A EP4145229A1 (de) 2018-10-18 2018-10-18 Zeigeranzeige für uhr

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP18201140.3A EP3640745B1 (de) 2018-10-18 2018-10-18 Anzeigezeiger für uhr
EP22203199.9A EP4145229A1 (de) 2018-10-18 2018-10-18 Zeigeranzeige für uhr

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP18201140.3A Division-Into EP3640745B1 (de) 2018-10-18 2018-10-18 Anzeigezeiger für uhr
EP18201140.3A Division EP3640745B1 (de) 2018-10-18 2018-10-18 Anzeigezeiger für uhr

Publications (1)

Publication Number Publication Date
EP4145229A1 true EP4145229A1 (de) 2023-03-08

Family

ID=63914824

Family Applications (4)

Application Number Title Priority Date Filing Date
EP22203199.9A Pending EP4145229A1 (de) 2018-10-18 2018-10-18 Zeigeranzeige für uhr
EP18201140.3A Active EP3640745B1 (de) 2018-10-18 2018-10-18 Anzeigezeiger für uhr
EP19790083.0A Pending EP3867706A1 (de) 2018-10-18 2019-10-17 Zeiger zur anzeige von sekunden oder bruchteilen einer sekunde für eine uhr
EP19790085.5A Active EP3867707B1 (de) 2018-10-18 2019-10-17 Anzeigezeiger für uhr

Family Applications After (3)

Application Number Title Priority Date Filing Date
EP18201140.3A Active EP3640745B1 (de) 2018-10-18 2018-10-18 Anzeigezeiger für uhr
EP19790083.0A Pending EP3867706A1 (de) 2018-10-18 2019-10-17 Zeiger zur anzeige von sekunden oder bruchteilen einer sekunde für eine uhr
EP19790085.5A Active EP3867707B1 (de) 2018-10-18 2019-10-17 Anzeigezeiger für uhr

Country Status (2)

Country Link
EP (4) EP4145229A1 (de)
WO (2) WO2020079636A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023036977A1 (en) * 2021-09-13 2023-03-16 Maturitas As An improved watch hand system providing improved readability of information displayed on different locations of a watch dial
NO20211096A1 (de) * 2021-09-13 2023-03-14

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE822293C (de) * 1949-07-16 1951-11-26 Uhrenfabriken Gebrueder Jungha Zeiger fuer Zeitmesser u. dgl.
DE29604580U1 (de) * 1996-03-12 1997-05-15 Liauw, Ek Tjien, 60323 Frankfurt Kalender-Uhr mit 3 Zeigern, die durch 3 Ringe am Ende die Datumsziffer, den Monat und den Tag zeigen; das Zifferblatt ist in 3 Kreisen eingeteilt für Tag, Monat, Datum
US20030112712A1 (en) * 2001-12-13 2003-06-19 Asulab S.A. Luminous hands and display device including the same, particularly in a timepiece
FR2867285A1 (fr) * 2004-03-03 2005-09-09 Benoit Espiau Montre
CH707437A1 (fr) * 2013-01-10 2014-07-15 Richemont Int Sa Procédé optique pour rendre invisible au moins un composant d'un mouvement de montre.

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH682966B5 (fr) * 1992-02-10 1994-06-30 Gerald Genta Aiguille pour pièce d'horlogerie.
EP1722281A1 (de) 2005-05-12 2006-11-15 ETA SA Manufacture Horlogère Suisse Analoger Anzeiger aus kristallenem Material, Uhr mit solchem Anzeiger, und Herstellungsverfahren dafür

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE822293C (de) * 1949-07-16 1951-11-26 Uhrenfabriken Gebrueder Jungha Zeiger fuer Zeitmesser u. dgl.
DE29604580U1 (de) * 1996-03-12 1997-05-15 Liauw, Ek Tjien, 60323 Frankfurt Kalender-Uhr mit 3 Zeigern, die durch 3 Ringe am Ende die Datumsziffer, den Monat und den Tag zeigen; das Zifferblatt ist in 3 Kreisen eingeteilt für Tag, Monat, Datum
US20030112712A1 (en) * 2001-12-13 2003-06-19 Asulab S.A. Luminous hands and display device including the same, particularly in a timepiece
FR2867285A1 (fr) * 2004-03-03 2005-09-09 Benoit Espiau Montre
CH707437A1 (fr) * 2013-01-10 2014-07-15 Richemont Int Sa Procédé optique pour rendre invisible au moins un composant d'un mouvement de montre.

Also Published As

Publication number Publication date
WO2020079633A1 (fr) 2020-04-23
EP3640745B1 (de) 2023-02-22
WO2020079636A1 (fr) 2020-04-23
EP3640745A1 (de) 2020-04-22
EP3867707A1 (de) 2021-08-25
EP3867706A1 (de) 2021-08-25
EP3867707B1 (de) 2022-11-02

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