EP2251746A2 - Uhrenrad und Uhr - Google Patents

Uhrenrad und Uhr Download PDF

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Publication number
EP2251746A2
EP2251746A2 EP10160149A EP10160149A EP2251746A2 EP 2251746 A2 EP2251746 A2 EP 2251746A2 EP 10160149 A EP10160149 A EP 10160149A EP 10160149 A EP10160149 A EP 10160149A EP 2251746 A2 EP2251746 A2 EP 2251746A2
Authority
EP
European Patent Office
Prior art keywords
wheel
pinion
timepiece
base material
oxide film
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.)
Withdrawn
Application number
EP10160149A
Other languages
English (en)
French (fr)
Other versions
EP2251746A3 (de
Inventor
Takuya Murazumi
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.)
Seiko Instruments Inc
Original Assignee
Seiko Instruments Inc
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 Seiko Instruments Inc filed Critical Seiko Instruments Inc
Publication of EP2251746A2 publication Critical patent/EP2251746A2/de
Publication of EP2251746A3 publication Critical patent/EP2251746A3/de
Withdrawn legal-status Critical Current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
    • G04B15/00—Escapements
    • G04B15/14—Component parts or constructional details, e.g. construction of the lever or the escape wheel
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
    • C25D11/02—Anodisation
    • 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
    • G04B13/00—Gearwork
    • G04B13/02—Wheels; Pinions; Spindles; Pivots
    • 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
    • G04B15/00—Escapements
    • G04B15/06—Free escapements
    • G04B15/08—Lever escapements
    • G—PHYSICS
    • G04—HOROLOGY
    • G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D3/00—Watchmakers' or watch-repairers' machines or tools for working materials
    • G04D3/0074—Watchmakers' or watch-repairers' machines or tools for working materials for treatment of the material, e.g. surface treatment
    • G04D3/0079—Watchmakers' or watch-repairers' machines or tools for working materials for treatment of the material, e.g. surface treatment for gearwork components
    • G04D3/0082—Watchmakers' or watch-repairers' machines or tools for working materials for treatment of the material, e.g. surface treatment for gearwork components for gear wheels or gears

Definitions

  • the present invention relates to a timepiece wheel and a timepiece equipped with the same.
  • timepiece wheels are used in a timepiece such as a mechanical timepiece.
  • Such timepiece wheels are formed in various shapes according to their uses; and they are combined with each other in a complicated manner to transmit power.
  • high wear resistance is required of a timepiece wheel since it undergoes sliding a large number of times.
  • the protective film formed by the conventional methods exhibits a high level of hardness; in particular, the protective film formed by PVD processing is a film of a very high level of hardness. In Vickers hardness (Hv), it exhibits a high hardness level of 1500 to 3000.
  • the protective film formed by the conventional methods is characterized by high residual stress. Thus, there is nothing for it but to increase the film thickness. If the film thickness is increased, high residual stress is allowed to be accumulated, resulting in a large difference in stress between the film and the base material. Due to this difference in stress, it is highly probable that there are generated in the protective film cracks, fissures, etc. attributable to self-destruction.
  • the film thickness of the protective film has to be as small as approximately 0.1 ⁇ m to 2 ⁇ m.
  • this small film thickness it is highly probable that even a protective film formed as a high hardness coating film is peeled off by rubbing, an impact or the like. As a result, as stated above, it is rather difficult to secure sufficient wear resistance.
  • the strength with which the protective film is held in intimate contact with the base material is rather low, so that the possibility of the protective film being peeled off is high.
  • the contact intimacy is enhanced as the processing temperature at the time of formation of the protective film increases; however, that is likely to adversely affect the base material (through thermal deformation, etc.), so that the processing temperature cannot be increased.
  • the protective film is subject to peeling off; thus, in this respect also, it is difficult to secure sufficient wear resistance.
  • the present invention provides the following means.
  • a timepiece wheel comprising a base material formed as a wheel of a metal allowing anodic treatment, and an anodic oxide film formed on the surface of the base material through anodic treatment.
  • the surface of a base material formed as a wheel is coated with an anodic oxide film.
  • this anodic oxide film is characterized by low residual stress at the time of coating.
  • it does not easily generate a great difference in stress between itself and the base material even if the thickness of the anodic oxide film is increased, so that cracks and fissures are not easily generated.
  • it is possible to coat the surface of the base material with an anodic oxide film of a sufficient thickness (e.g., ten and several ⁇ m), which has been impossible with the prior art. As a result, it is possible to protect the base material with an anodic oxide film of high hardness and sufficient thickness.
  • the anodic oxide film is an oxide formed on the surface of the base material by oxidation reaction through anodic treatment.
  • the anodic oxide film can exert high intimate contact strength, making it possible to enhance the intimacy with which the base material is held in contact with the anodic oxide film.
  • the anodic oxide film is not easily peeled off from the base material.
  • timepiece wheel consisting of a base material whose surface is coated with an anodic oxide film of high hardness and sufficient thickness with high intimate contact strength.
  • an enhancement in wear resistance it is possible to achieve an improvement in durability.
  • a timepiece wheel as described above characterized in that the base material is formed in a uniform thickness all over.
  • an enhancement in wear resistance is achieved by the anodic oxide film, so that there is no need to take general measures for achieving an improvement in wear resistance, such as provision of a step portion (oil sump) for retaining lubricating oil or the like.
  • a step portion oil sump
  • the anodic oxide film is impregnated with lubricating oil, so that it is possible to achieve an enhancement in lubrication property, making it possible to achieve a further enhancement in wear resistance.
  • the timepiece of the present invention is equipped with a timepiece wheel of high wear resistance and improved in durability, so that it is possible to provide a high quality timepiece of high operational reliability capable of ticking away the time accurately for a long period of time.
  • timepiece wheel With a timepiece wheel according to the present invention, it is possible to achieve an enhancement in wear resistance and to achieve an improvement in durability.
  • timepiece due to the provision of the timepiece wheel as described above, it is possible to provide a high quality timepiece of high operational reliability capable of ticking away the time accurately for a long period of time.
  • a mechanical timepiece is taken as an example of the timepiece
  • an escape wheel & pinion is taken as an example of the timepiece wheel.
  • FIG. 1 is a plan view of the movement front side.
  • FIG. 2 is a schematic partial sectional view of the portion extending from the movement barrel to the escape wheel & pinion.
  • FIG. 3 is a schematic partial sectional view of the portion extending from the escape wheel & pinion to the balance with hairspring.
  • a mechanical timepiece 1 is equipped with a movement 100.
  • the movement 100 has a main plate 102 constituting the substrate of the movement 100.
  • a winding stem 110 is rotatably incorporated into a winding stem guide hole 102a of the main plate 102.
  • a dial 104 (See FIGs. 2 and 3 ) is mounted to the movement 100.
  • the side where the dial 104 is arranged is referred to as the back side of the movement 100
  • the side opposite to the side where the dial 104 is arranged is referred to as the front side of the movement 100.
  • a train wheel assembled to the front side of the movement 100 is referred to as the front train wheel
  • a train wheel assembled to the back side of the movement 100 is referred to as the back train wheel.
  • the position of the winding stem 110 in the axial direction is determined by a switching device including a setting lever 190, a yoke 192, a yoke spring 194, and a setting lever jumper 196.
  • a winding pinion 112 is rotatably provided on the guide shaft portion of the winding stem 110.
  • a center wheel & pinion 124 is rotated through rotation of the movement barrel 120.
  • An escape wheel & pinion 130 is rotated through rotation of a second wheel & pinion 128, a third wheel & pinion 126, and the center wheel & pinion 124.
  • the movement barrel 120, the center wheel & pinion 124, the third wheel & pinion 126, and the second wheel & pinion 128 constitute the front train wheel.
  • An escapement/governor device for controlling the rotation of the front train wheel is formed by a balance with hairspring 140, the escape wheel & pinion 130, and a pallet fork 142.
  • the balance with hairspring 140 is equipped with a balance staff 140a and a hairspring 140c.
  • a cannon pinion 150 rotates simultaneously.
  • a minute hand 152 mounted to the cannon pinion 150 indicates "minute.”
  • the cannon pinion 150 is equipped with a slip mechanism for the center wheel & pinion 124. Based on the rotation of the cannon pinion 150, an hour wheel 154 is rotated through rotation of a minute wheel. And, an hour hand 156 mounted to the hour wheel 154 indicates "hour.”
  • the hairspring 140c is a spiral (helical) thin-plate spring having a plurality of turns.
  • the inner end portion of the hairspring 140c is fixed to a collet 140d fixed to the balance staff 140a.
  • the outer end portion of the hairspring 140c is fixed in position by a screw via a stud 170a mounted to a stud support 170 fixed to a balance bridge 166 (See FIG. 1 ).
  • a regulator 168 is rotatably mounted to the balance bridge 166.
  • the balance with hairspring 140 is rotatably supported with respect to the main plate 102 and the balance bridge 166.
  • the movement barrel 120 is equipped with a barrel wheel 120d, a barrel arbor 120f, and the mainspring 122.
  • the barrel arbor 120f is equipped with an upper shaft portion 120a and a lower shaft portion 120b.
  • the barrel arbor 120f is formed of a metal such as carbon steel.
  • the barrel wheel 120d is formed of a metal such as brass.
  • the center wheel & pinion 124 is equipped with an upper shaft portion 124a, a lower shaft portion 124b, a pinion portion 124c, a wheel portion 124d, and a bead portion 124h.
  • the pinion portion 124c of the center wheel & pinion 124 is formed so as to be in mesh with the barrel wheel 120d.
  • the upper shaft portion 124a, the lower shaft portion 124b, and the bead portion 124h are formed of a metal such as carbon steel.
  • the wheel portion 124d is formed of a metal such as nickel.
  • the third wheel & pinion 126 is equipped with an upper shaft portion 126a, a lower shaft portion 126b, a pinion portion 126c, and a wheel portion 126d.
  • the pinion portion 126c of the third wheel & pinion 126 is formed so as to be in mesh with the wheel portion 124d.
  • the second wheel & pinion 128 is equipped with an upper shaft portion 128a, a lower shaft portion 128b, a pinion portion 128c, and a wheel portion 128d.
  • the pinion portion 128c of the second wheel & pinion 128 is formed so as to be in mesh with the wheel portion 126d.
  • the upper shaft portion 128a and the lower shaft portion 128b are formed of a metal such as carbon steel.
  • the wheel portion 128d is formed of a metal such as nickel.
  • the escape wheel & pinion 130 is equipped with an upper shaft portion 130a, a lower shaft portion 130b, an escape pinion portion 130c, and an escape wheel portion 132.
  • the escape pinion portion 130c is formed so as to be in mesh with the wheel portion 128d.
  • the pallet fork 142 is equipped with a body of pallet fork 142d and a pallet staff 142f.
  • the pallet staff 142f is equipped with an upper shaft portion 142a and a lower shaft portion 142b.
  • the movement barrel 120 is rotatably supported with respect to the main plate 102 and the barrel bridge 160. That is, the upper shaft portion 120a of the barrel arbor 120f is rotatably supported with respect to the barrel bridge 160. The lower shaft portion 120b of the barrel arbor 120f is rotatably supported with respect to the main plate 102.
  • the center wheel & pinion 124, the third wheel & pinion 126, the second wheel & pinion 128, and the escape wheel & pinion 130 are rotatably supported with respect to the main plate 102 and the train wheel bridge 162. That is, the upper shaft portion 124a of the center wheel & pinion 124, the upper shaft portion 126a of the third wheel & pinion 126, the upper shaft portion 128a of the second wheel & pinion 128, and the upper shaft portion 130a of the escape wheel & pinion 130 are each rotatably supported with respect to the train wheel bridge 162.
  • the lower shaft portion 124b of the center wheel & pinion 124, the lower shaft portion 126b of the third wheel & pinion 126, the lower shaft portion 128b of the second wheel & pinion 128, and the lower shaft portion 130b of the escape wheel & pinion 130 are each rotatably supported with respect to the main plate 102.
  • the pallet fork 142 is rotatably supported with respect to the main plate 102 and the pallet bridge 164. That is, the upper shaft portion 142a of the pallet fork 142 is rotatably supported with respect to the pallet bridge 164. The lower shaft portion 142b of the pallet fork 142 is rotatably supported with respect to the main plate 102.
  • Lubricating oil is applied to the bearing portion of the barrel bridge 160 rotatably supporting the upper shaft portion 120a of the barrel arbor 120f, the bearing portion of the train wheel bridge 162 rotatably supporting the upper shaft portion 124a of the center wheel & pinion 124, the bearing portion of the train wheel bridge 162 rotatably supporting the upper shaft portion 126a of the third wheel & pinion 126, the bearing portion of the train wheel bridge 162 rotatably supporting the upper shaft portion 128a of the second wheel & pinion 128, the bearing portion of the train wheel bridge 162 rotatably supporting the upper shaft portion 130a of the escape wheel & pinion 130, and the bearing portion of the pallet bridge 164 rotatably supporting the upper shaft portion 142a of the pallet fork 142.
  • lubricating oil is applied to the bearing portion of the main plate 102 rotatably supporting the lower shaft portion 120b of the barrel arbor 120f, the bearing portion of the main plate 102 rotatably supporting the lower shaft portion 124b of the center wheel & pinion 124, the bearing portion of the main plate 102 rotatably supporting the lower shaft portion 126b of the third wheel & pinion 126, the bearing portion of the main plate 102 rotatably supporting the lower shaft portion 128b of the second wheel & pinion 128, the bearing portion of the main plate 102 rotatably supporting the lower shaft portion 130b of the escape wheel & pinion 130, and the bearing portion of the main plate 102 rotatably supporting the lower shaft portion 142b of the pallet fork 142.
  • the main plate 102, the barrel bridge 160, the train wheel 162, and the pallet fork 164 may be formed of a metal such as brass, or a resin such as polycarbonate.
  • the escape wheel & pinion 130 is composed of a metal base material 132 formed in a predetermined thickness, an anodic oxide film 133 covering the entire surface of the base material 132 through anodic treatment, and a shaft member 131 driven into the center of the base material 132.
  • FIG. 4 is a plan view of the escape wheel & pinion 130 and the pallet fork 142 in mesh with each other. It should be noted, however, that, in FIG. 4 , the anodic oxide film 133 is omitted.
  • FIG. 5 is an enlarged perspective view of a tooth portion 132a of the escape wheel & pinion 133.
  • the base material 132 is formed as a wheel of a material allowing anodic treatment, for example, aluminum (AI). More specifically, its upper and lower surfaces are formed as flat surfaces; further, it is formed in a uniform thickness all over, and has a plurality of tooth portions 132a formed in a special, hook-like configuration. Pallet jewels 144a, 144b of the pallet fork 142 described below come into contact with the distal ends of the plurality of tooth portions 132a. That is, the side surfaces of the distal end portions of the tooth portions 132a are formed as sliding surfaces (impact surfaces) 132b with which the pallet jewels 144a, 144b come into contact to slide thereon.
  • a material allowing anodic treatment for example, aluminum (AI). More specifically, its upper and lower surfaces are formed as flat surfaces; further, it is formed in a uniform thickness all over, and has a plurality of tooth portions 132a formed in a special, hook-like configuration. Pallet jewels 144a, 144b of the pallet fork
  • the anodic oxide film 133 is a high hardness coating film whose hardness in Hv (Vickers hardness) ranges approximately from 1600 to 2000, and covers the surface of the base material 132 in a sufficient thickness (ten and several ⁇ m).
  • the shaft member 131 is a member mounted by being driven into a retention hole (not shown) provided at the center of the base material 132; its center axis is identical with the center axis of the escape wheel & pinion 130.
  • the above-mentioned upper shaft portion 130a is provided at the upper end portion of the shaft member 131, and the lower shaft portion 130b is provided at the lower end portion thereof.
  • an escape pinion portion 130c is provided below the upper shaft portion 130a.
  • the escape pinion portion 130c is in mesh with the wheel portion 128d of the second wheel & pinion 128, whereby the rotational force of the second wheel & pinion 128 is transmitted to the shaft member 131 to rotate the escape wheel & pinion 130.
  • the pallet fork 142 is equipped with a body of pallet fork 142d formed in a T-shaped configuration by three pallet beams 143, and a pallet staff 142f; the body of pallet fork 142d is rotatable due to the pallet staff 142f consisting of a shaft.
  • the pallet jewels 144a, 144b are provided at the distal ends of two pallet beams 143 of the three pallet beams 143; an inter-horn member 145 is mounted to the distal end of the remaining pallet beam 143.
  • the pallet jewels 144a, 144b consist of ruby formed in a rectangular-prism-like configuration; they are glued to the pallet beams 143 by adhesive or the like.
  • the pallet fork 142 When the pallet fork 142, constructed as described above, rotates around the pallet staff 142f, the pallet jewel 144a or the pallet jewel 144b comes into contact with the distal end of a tooth portion 132a of the escape wheel & pinion 130, more specifically, with the sliding surface 132b thereof. In this process, the pallet beam 143 to which the inter-horn member 145 is mounted comes into contact with a banking pin (not shown), thereby preventing further rotation of the pallet fork 142 in the same direction. As a result, the rotation of the escape wheel & pinion 130 is also temporarily stopped.
  • the anodic oxide film 133 is characterized by low residual stress at the time of coating.
  • the anodic oxide film 133 does not easily involve generation of a large difference in stress between itself and the base material 132, so that it is little subject to generation of cracks, fissures, etc.
  • the anodic oxide film 133 can be formed in a thickness of 0.1 ⁇ m to ten and several ⁇ m (for example 0.1-15 ⁇ m or 20 ⁇ m or more), thus making it possible to coat the surface of the base material 132 with an anodic oxide film 133 of sufficient thickness, which has been impossible in the prior art. As a result, it is possible to protect the base material 132 with an anodic oxide film 133 of high hardness and sufficient thickness.
  • the anodic oxide film 133 is an oxide formed on the surface of the base material 132 by oxidation reaction through anodic treatment.
  • the anodic oxide film 133 can exhibit high strength for intimate contact, making it possible to enhance the intimacy with which the base material 132 and the anodic oxide film 133 are held in contact with each other.
  • the anodic oxide film 133 is not easily peeled off from the base material 132.
  • the number of times that the escape wheel & pinion 130 undergoes sliding exceeds several million a year, which means it is a wheel very subject to wear.
  • an enhancement in wear resistance is achieved due to the anodic oxide film 133, so that it is not so subject to wear despite the large number of times that it undergoes sliding, which means it is superior in reliability.
  • the base material 132 is formed of aluminum (Al), which is a light metal, so that it is especially superior in escapement efficiency.
  • the mechanical timepiece 1 of this embodiment is equipped with the escapement wheel & pinion 130 as described above, that is, the escapement wheel & pinion 130 which is of high wear resistance, which helps to achieve an improvement in durability, and which helps to achieve an enhancement in escapement efficiency, so that it can tick away the time accurately for a long period of time, thus making it possible to provide a high quality timepiece of high operational reliability.
  • the anodic oxide film 133 may be impregnated with various lubricants.
  • the anodic oxide film 133 formed through anodic treatment is of such a nature as to be of a porous structure, so that when lubricating oil is applied as the lubricant, the lubricating oil can be reliably retained. That is, the anodic oxide film 133 can be sufficiently impregnated with lubricating oil, thus serving as an oil pool.
  • the lubricant is not restricted to lubricating oil; it is also possible to adopt, for example, a granular solid lubricant, such as carbon, teflon (registered trademark), or molybdenum disulfide.
  • a granular solid lubricant such as carbon, teflon (registered trademark), or molybdenum disulfide.
  • the impregnation is possible by filling the anodic oxide film 133 with the solid lubricant through suction, rubbing or the like. In this case also, the same effect can be attained.
  • the base material 132 is formed of aluminum (Al), it is also possible to employ aluminum alloy, or some other metal material as long as it is a metal allowing anodic treatment.
  • a metal material such as magnesium (Mg) or magnesium alloy, or titanium (Ti) or titanium alloy, or lithium (Li).
  • Mg magnesium
  • Ti titanium
  • Li lithium
  • metal material it is desirable to adopt a metal material that is as light as possible as in the case, for example, of aluminum (Al). This helps to achieve a reduction in weight and, at the same time, to achieve an improvement in the mobility of the product as a wheel, thereby achieving an enhancement in operational efficiency. From this point of view, it is desirable to adopt magnesium (Mg) or magnesium alloy.
  • the timepiece wheel of this embodiment is applied to the escapement wheel & pinion 130, it is applicable not only to the escapement wheel & pinion 130 but also to some other wheel. In particular, it is suitably applicable to a wheel which involves large sliding load and of which high wear resistance is required.
  • FIG. 6 is a plan view of the front side of the movement of an automatic timepiece.
  • FIG. 7 is a schematic partial sectional view showing a portion extending from a movement barrel to a ball bearing.
  • a ratchet wheel 201 is rotated through rotation of a winding pinion (not shown), winding up a mainspring (not shown) accommodated in a movement barrel 202.
  • the ratchet wheel 201 is in mesh with a center transmission pinion 205a of a center transmission wheel 205 whose upper and lower shaft portions are pivoted by a barrel bridge 203 and a transmission bridge 204.
  • the center transmission wheel 205 is rotated.
  • the center transmission wheel 205 is in mesh with the distal end of a pawl lever 206.
  • the proximal end side of the pawl lever 206 is fixed to a first transmission wheel 209 whose upper and lower shaft portions are pivoted by a center wheel bridge 207 and a transmission wheel bridge 208.
  • the first transmission wheel 209 is in mesh with a first transmission intermediate wheel 211 whose upper and lower shaft portions are pivoted by a third wheel bridge 210 and the transmission wheel bridge 208. As a result, through rotation of the first transmission wheel, the first transmission intermediate wheel 211 is rotated. Further, the first transmission intermediate wheel 211 is in mesh with a gear 212a formed on the outer peripheral surface of a ball bearing 212. Thus, through rotation of the first transmission intermediate wheel 211, the ball bearing 212 is rotated.
  • the first transmission wheel 209, the first transmission intermediate wheel 211, and the center transmission wheel 205 are wheels which involve large sliding load and of which high wear resistance is required; and, the timepiece wheel of the present invention is also suitably applicable to these wheels.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Gears, Cams (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
EP10160149A 2009-05-11 2010-04-16 Uhrenrad und Uhr Withdrawn EP2251746A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2009114770A JP2010261906A (ja) 2009-05-11 2009-05-11 時計用歯車及び時計

Publications (2)

Publication Number Publication Date
EP2251746A2 true EP2251746A2 (de) 2010-11-17
EP2251746A3 EP2251746A3 (de) 2012-05-23

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2472340A1 (de) * 2011-01-03 2012-07-04 Patek Philippe SA Genève Bestandteil einer Uhr und sein Herstellungsverfahren
CN102540847A (zh) * 2010-12-16 2012-07-04 精工电子有限公司 构件、构件的制造方法及钟表
EP2363762B1 (de) * 2010-03-04 2017-11-22 Montres Breguet SA Uhr mit einem mechanischen Hochfrequenzuhrwerk
CN108205249A (zh) * 2016-12-20 2018-06-26 尼瓦洛克斯-法尔股份有限公司 用于钟表机芯的部件
EP3002637B1 (de) 2014-09-29 2018-11-28 Richemont International S.A. Uhrensystem mit verbesserten tribologischen eigenschaften
US11520290B2 (en) * 2018-03-29 2022-12-06 Rolex Sa Wheel for horology movement
EP4022398B1 (de) * 2019-08-29 2023-07-26 ETA SA Manufacture Horlogère Suisse Klebeverfahren für uhrenkomponenten

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008544290A (ja) 2005-06-28 2008-12-04 ウーテーアー・エス・アー・マニファクチュール・オロロジェール・スイス 強化された微小機械部品

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US3034286A (en) * 1957-04-30 1962-05-15 Straumann Inst Ag Escapement
CH340777A (de) * 1957-04-30 1959-08-31 Straumann Inst Ag Bestandteil für Uhren, welcher reibende Flächen aufweist
CH344676A (fr) * 1959-09-29 1960-02-15 D Ebauches De Bettlach S A Fab Procédé de fabrication de roues dentées pour pièces d'horlogerie et roue obtenue selon ce procédé
JPS569370A (en) * 1979-07-04 1981-01-30 Seiko Instr & Electronics Ltd Surface treatment of watch part
JPS6069197A (ja) * 1983-09-26 1985-04-19 Seiko Epson Corp 精密摺動部品

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008544290A (ja) 2005-06-28 2008-12-04 ウーテーアー・エス・アー・マニファクチュール・オロロジェール・スイス 強化された微小機械部品

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2363762B1 (de) * 2010-03-04 2017-11-22 Montres Breguet SA Uhr mit einem mechanischen Hochfrequenzuhrwerk
CN102540847A (zh) * 2010-12-16 2012-07-04 精工电子有限公司 构件、构件的制造方法及钟表
EP2472340A1 (de) * 2011-01-03 2012-07-04 Patek Philippe SA Genève Bestandteil einer Uhr und sein Herstellungsverfahren
EP3002637B1 (de) 2014-09-29 2018-11-28 Richemont International S.A. Uhrensystem mit verbesserten tribologischen eigenschaften
CN108205249A (zh) * 2016-12-20 2018-06-26 尼瓦洛克斯-法尔股份有限公司 用于钟表机芯的部件
US11520290B2 (en) * 2018-03-29 2022-12-06 Rolex Sa Wheel for horology movement
EP4022398B1 (de) * 2019-08-29 2023-07-26 ETA SA Manufacture Horlogère Suisse Klebeverfahren für uhrenkomponenten

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