US3633356A - Mechanism for detachably attaching a timepiece movement to a watch casing, especially the middle ring thereof - Google Patents

Mechanism for detachably attaching a timepiece movement to a watch casing, especially the middle ring thereof Download PDF

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Publication number
US3633356A
US3633356A US64427A US3633356DA US3633356A US 3633356 A US3633356 A US 3633356A US 64427 A US64427 A US 64427A US 3633356D A US3633356D A US 3633356DA US 3633356 A US3633356 A US 3633356A
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United States
Prior art keywords
ring
movement
holder ring
watch
holder
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US64427A
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English (en)
Inventor
Seizo Kitazima
Tetuya Yasuda
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Citizen Watch Co Ltd
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Citizen Watch Co Ltd
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Filing date
Publication date
Application filed by Citizen Watch Co Ltd filed Critical Citizen Watch Co Ltd
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Publication of US3633356A publication Critical patent/US3633356A/en
Anticipated expiration legal-status Critical
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    • 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
    • G04B37/04—Mounting the clockwork in the case; Shock absorbing mountings
    • G04B37/05—Fixed mountings for pocket or wrist watches
    • G04B37/052—Fixed mountings for pocket or wrist watches with shock damping means not related to the winding stem

Definitions

  • a movement holder ring for resiliently attaching a timepiece movement to a watch casing by means of fixing means such as case screws or pins comprising the provision of a pair of inwardly projecting attaching tongues made integral with a ring flange which constitutes the holder ring, together with a web ring made integral therewith.
  • These tongues are arranged substantially diametrally opposite to each other and has each such a configuration that they are brought into engagement with said respective fixing means when assembling of the holder ring and the watch movement in the interior of said watch casing.
  • Said holder ring has several inwardly and outwardly and downwardly directing projections for assuring optimum contact with the movement as well as the watch housing, for keeping the movement in position and in a shock-absorbing way.
  • This invention relates to improvements in and relating to a mechanism for detachably attaching a timepiece movement to a watch casing, especially the middle ring thereof. More specifically, it relates to improvements in the movement holder ring ofa watch.
  • FIG. 1 is a perspective view of a preferred embodiment of a movement holder ring which constitute a main and substantial part of the movement attaching mechanism according to this invention.
  • FIG. 2 is a part of a cross section of the movement holder ring, taken substantially along a section line 11-11 shown in FIG. 1, wherein, however, part of a conventional dial plate and a conventional watch movement are additionally shown.
  • FIG. 3 is a part of an axial section of a watch wherein the movement holder ring has been inserted in position.
  • FIGS. 46 are respective plan views of several modified attaching tongues projecting inwardly and radially from the movement holder ring proper.
  • FIG. 7 is a similar view to FIG. 4, showing a still modified form of the attaching tongue adapted for cooperation with a positioning pin in place of a case screw.
  • FIG. 8 is a similar view to FIG. 2, showing, however, the still modified form of the attaching tongue illustrated in FIG. 7.
  • FIG. 9 is a similar view to FIG. 7, illustrating, however, a still modified form of the attaching pin.
  • the numeral 10 generally denotes a movement holder ring which comprises a ring web 11 and a ring flange 12 made integral therewith, said web being interrupted at two positions 13 and 14 positioned substantially diametrally opposite to each other.
  • a pair of attaching tongues 16 and 17 project from the material of the ring flange 12 in a shouldered way and at a slightly lower level. These tongues 16 and 17 are arranged substantially in a diametrally opposite way, as seen from FIG. 1. These tongues are formed with respective screw-receiving openings 16a and 17a, respectively.
  • the holder ring 10 is made from a tough and elastic material such as a stainless steel sheet by a combined punching and drawing two-step press job.
  • each of the attaching tongues 16 and 17 there are provided a pair of inwardly directing small projections 18;l9 or 20;2l, respectively, for snugly contacting with the circumferential wall of the watch movement 22 shown in FIG. 3 as an example.
  • the web 11 is formed with a plurality of circumferential and elongated grooves 26, 27 and 28 arranged circumferentially one after another and at certain mutual distances one after another, for providing an enough degree of elasticity to the holder ring 10 per se, to absorb occasionally encountering outside shocks applied to the movement through the watch casing and the holder ring when assembled together and while in use.
  • a pair of peripheral enlarged edges 33 and 34 are formed on the ring flange 12 in the integral manner, the center of each of these edges when seen in the peripheral direction of the holder ring 10 being situated on a diameter thereof which is drawn at substantially right angles connecting the pair of the attaching tongues 16 and 17.
  • These elongated edges 33 and 34 are arranged to contact with the inside wall of the casing, as at 35 in FIG. 3, of the watch.
  • the numeral 37 denotes a crystal or watch glass; 38 a seconds hand; 39 a minute hand; 40 an hour hand; 41 a dial plate; 42 a winding stem; and 43 a crown.
  • the numeral 44 represents a conventional plate of the watch movement generally shown at 22, said plate being formed with two tapped holes for threadedly receiving respective case screws 36. In FIG. 2, however, one of these case screws 36 and its mating tapped hole 45 only are shown.
  • the plate 44 For receiving each of the attaching tongues 16 and 17, the plate 44 is formed with a recess 46 one side edge 46a of which is adapted for serving as effective means for circumferential positioning of the holder ring 10, as will be easily supposed from FIG. 4.
  • the casing 35 attached with dial plate 41 and glass 37 is inverted up and down in its position from that shown in FIG. 3 and then the back cover 32 is removed from the casing for exposing the interior space thereof.
  • the movement 22 is inserted from upper in position and the holder ring 10 is positioned between the outer periphery of the movement and the inside wall of the middle ring 35 of the watch casing in such a way that each of the attaching tongues l6-l7 is positioned within the area of the related recess 46 on the plate 44.
  • the holder ring 10 is slightly rotated until the tongue 16 or 17 has been brought into contact with the positioning side edge 46a of the recess 46.
  • case screws 36 are inserted through the receiving openings 16a and 17a into the respective tapped holes 45 and then tightened.
  • the holder ring is expanded in a specific diametral direction along the line connecting the tongues 16 and 17 by tightening said screws 36, but, this is compensated to a substantial degree by the provision of two elongated enlarged edges 33 and 34, thereby substantially all the outer periphery of the ring flange 12 will be brought into contact with the inner wall surface of the middle ring 35. In this way, an optimum and resilient positioning of the movement 22 by the holder ring is assured, in spite of the forced deformation of the ring caused by tightening of the case screws.
  • the removed back cover 32 is attached back in position, as shown in FIG. 3.
  • the axially depending projections 29-31 are brought into pressure contact with the ring shoulder 32a formed on the inside wall surface of the back cover 32.
  • the holder ring 10 having an axially resilient structure attained by the provision of several separated and elongated peripheral grooves 2628, is resiliently compressed in axial direction to a certain degree, thus the movement 22 being positioned in an optimum manner and under resiliently pressurized condition, for absorbing occasional outside shocks.
  • the stem 42 which has been shown only partially for avoiding the complexity of the drawing, is introduced through the interruption into a peripheral groove 47.
  • the stem By turningly positioning of the holder ring 10 in the aforementioned way, the stem will be submerged into the said groove 47. In this way, the stem may be kept in its proper position for avoiding excess rotational resistance by contact with the holder ring 10.
  • the dismantling of the holder ring 10 and the movement 22 from the watch casing 35 attached with glass 37 and back cover 32 may be carried into effect in the reverse order.
  • FIG. 4 shows a modified form of the attaching tongue at 116 which is formed with a fork fingers 116a and 116b in place of the foregoing screw-receiving hole 16a.
  • the fork groove 116a formed between the fingers 116a and 116k serves well as the screw-receiving means.
  • the width of the groove 1160 is so selected well to support the enlarged head at 36a of case screw 36 by the fork fingers 116a and 116b.
  • the similar feature is also applied to the opposite tongue, although not shown.
  • the dimension of the hole 16a or 17a is naturally selected to prevent a slip-in of the enlarged head as at 36a of the case screw.
  • FIG. 5 is a still further modified form of the case screw at 116 which is, however, substantially similar to that shown in FIG. 4.
  • one ofthe fork fingers 16a has a shorter length than the other finger 116b" for easier catch of the case screw 36.
  • the opposite tongue may have naturally the same structure, although not shown.
  • the still modified tongue at 116 shown in FIG. 6, it is formed into a substantially rectangular configuration in its plan view.
  • This tongue 116" is so dimensioned that upon assemble of the movement holder ring 10, a part of the enlarged head 36a of the case screw 36 is kept in pressure abutment against the inner and straight end edge 116a" of the tongue.
  • a more easy engagement of the case screw with the tongue is assured when assembling of the holder ring in position.
  • the attaching tongue at 216 having fork fingers 216a and l16b defining an open groove 2166 is substantially similar to that shown in FIG. 4.
  • the tongue is so designed and dimensioned so as to cooperate with a case pin 136 which is held in position by insertion in a plain hole bored through the plate 44 in place of the foregoing tapped hole 45.
  • the case pin 136 has a tapered head 136a which has such a diametral dimension that when the forked tongue 216 is forcibly pressed in the axial direction of the watch the groove 2160 is elastically and provisionally expanded for allowing passage of the tapered pinhead 136a through the groove. Upon such forced passage, the pinhead is caught by the now recontracted groove 216C.
  • the edge 46a of the recess 46 serves for initial and circumferential positioning of the holder ring 10 by cooperation with one side straight edge portion 216d of the tongue.
  • the pinheadreceiving groove 216c' is formed laterally of the tongue 216'.
  • this lateral groove 2160' in place of the axial groove 216C in the foregoing would be self-explanatory by comparing the chain dotted line position with the full line one shown in FIG. 9. More specifically, the purpose is for lateral catch of the case pin by the catching groove 216a by an initial turning of the holder ring 10.
  • the recess 46' on the plate 44 in this embodiment is selected to have a substantially larger area than the foregoing recess 46.
  • Mechanism for detachably attaching a timepiece movement to a watch casing, especially the middle ring thereof by means of a holder ring said mechanism being characterized by that said holder ring comprising an interrupted web ring, an interrupted ring flange made integral therewith, a plurality of separated inward projections formed integral with said ring flange and adapted for contact with the outer peripheral surface of said movement, a plurality of elongated circumferential grooves for providing an axial resiliency to said holder ring, a plurality of separated depending projections formed on the ring web and adapted for contact with a back cover of said watch, and a pair of inwardly projecting tongues made integral with said ring flange and arranged substantially diametrally opposite to each other, the main part of each of said tongues being positioned at a slightly lower level than that of said ring flange and said tongues being so shaped that they engage with fixing means mounted on the plate of said movement.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
US64427A 1969-08-25 1970-08-17 Mechanism for detachably attaching a timepiece movement to a watch casing, especially the middle ring thereof Expired - Lifetime US3633356A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1969080600U JPS4833328Y1 (fr) 1969-08-25 1969-08-25

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US3633356A true US3633356A (en) 1972-01-11

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JP (1) JPS4833328Y1 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4122664A (en) * 1976-03-25 1978-10-31 Ebauches Electroniques S.A. Electronic watch
US4218873A (en) * 1977-12-15 1980-08-26 Louis Lang S.A. Sealed, shaped watch-case
US5043957A (en) * 1989-05-03 1991-08-27 Eta Sa Fabriques D'ebauches Watch comprising means for lateral positioning of the movement in the watch case
US20030030230A1 (en) * 2001-07-28 2003-02-13 Manufacture Jaeger-Lecoultre Sa Sealed crown for watch casing
US6575619B1 (en) * 1999-04-22 2003-06-10 Eta Sa Fabriques D'ebauches Method for assembling a casing ring in a watch case and casing ring for such method
EP2275882A1 (fr) * 2009-07-14 2011-01-19 ETA SA Manufacture Horlogère Suisse Dispositif de blocage d'un mouvement d'une pièce d'horlogerie
EP3483668A1 (fr) * 2017-11-13 2019-05-15 Rolex Sa Système de fixation d'un mouvement horloger dans une boîte de montre
EP3483667A1 (fr) * 2017-11-13 2019-05-15 Rolex Sa Système de fixation d'un mouvement horloger dans une boîte de montre
CN114185256A (zh) * 2020-09-15 2022-03-15 奥米加股份有限公司 用于将钟表机芯紧固在表壳中的紧固系统
US11327442B2 (en) 2017-11-13 2022-05-10 Rolex Sa System for fixing a timepiece movement in a watch case
US20230100861A1 (en) * 2021-09-29 2023-03-30 Eta Sa Manufacture Horlogère Suisse Protective ring for a horology movement and horology movement including said protective ring

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1259197A (en) * 1913-09-03 1918-03-12 Louis S Auriema Watch.
US1995951A (en) * 1932-08-04 1935-03-26 Firm Fabriques D Horlogerie Th Shock and blow proof watch
CH262600A (de) * 1948-01-12 1949-07-15 Langendorf Uhrenfabrik Halter zur Befestigung eines Uhrwerkes in einem Uhrgehäuse.
GB676401A (en) * 1949-10-21 1952-07-23 Eterna Ltd Watch Factory Fixing plate for positioning a watch or clock movement in its case
US3520130A (en) * 1968-07-05 1970-07-14 Jean Jacques Oltramare Suspending device for timepiece movement

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1259197A (en) * 1913-09-03 1918-03-12 Louis S Auriema Watch.
US1995951A (en) * 1932-08-04 1935-03-26 Firm Fabriques D Horlogerie Th Shock and blow proof watch
CH262600A (de) * 1948-01-12 1949-07-15 Langendorf Uhrenfabrik Halter zur Befestigung eines Uhrwerkes in einem Uhrgehäuse.
GB676401A (en) * 1949-10-21 1952-07-23 Eterna Ltd Watch Factory Fixing plate for positioning a watch or clock movement in its case
US3520130A (en) * 1968-07-05 1970-07-14 Jean Jacques Oltramare Suspending device for timepiece movement

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4122664A (en) * 1976-03-25 1978-10-31 Ebauches Electroniques S.A. Electronic watch
US4218873A (en) * 1977-12-15 1980-08-26 Louis Lang S.A. Sealed, shaped watch-case
US5043957A (en) * 1989-05-03 1991-08-27 Eta Sa Fabriques D'ebauches Watch comprising means for lateral positioning of the movement in the watch case
US6575619B1 (en) * 1999-04-22 2003-06-10 Eta Sa Fabriques D'ebauches Method for assembling a casing ring in a watch case and casing ring for such method
US20030030230A1 (en) * 2001-07-28 2003-02-13 Manufacture Jaeger-Lecoultre Sa Sealed crown for watch casing
US6902169B2 (en) * 2001-07-28 2005-06-07 Richemont International Sa Sealed crown for watch casing
EP2275882A1 (fr) * 2009-07-14 2011-01-19 ETA SA Manufacture Horlogère Suisse Dispositif de blocage d'un mouvement d'une pièce d'horlogerie
WO2011006818A1 (fr) * 2009-07-14 2011-01-20 Eta Sa Manufacture Horlogere Suisse Dispositif de blocage d'un mouvement d'une pièce d'horlogerie
CN102576214A (zh) * 2009-07-14 2012-07-11 伊塔瑞士钟表制造股份有限公司 用于锁固钟表机芯的装置
CN102576214B (zh) * 2009-07-14 2013-09-04 伊塔瑞士钟表制造股份有限公司 用于锁固钟表机芯的装置
US8714814B2 (en) 2009-07-14 2014-05-06 Eta Sa Manufacture Horlogere Suisse Device for locking a timepiece movement
EP3483667A1 (fr) * 2017-11-13 2019-05-15 Rolex Sa Système de fixation d'un mouvement horloger dans une boîte de montre
US11327442B2 (en) 2017-11-13 2022-05-10 Rolex Sa System for fixing a timepiece movement in a watch case
CN109782567A (zh) * 2017-11-13 2019-05-21 劳力士有限公司 用于在表壳中固定时钟机芯的系统
US11604436B2 (en) 2017-11-13 2023-03-14 Rolex Sa System for fixing a timepiece movement in a watch case
EP3483668A1 (fr) * 2017-11-13 2019-05-15 Rolex Sa Système de fixation d'un mouvement horloger dans une boîte de montre
EP3968099A1 (fr) * 2020-09-15 2022-03-16 Omega SA Systeme de fixation d'un mouvement d'horlogerie dans une boite de montre
KR20220036322A (ko) * 2020-09-15 2022-03-22 오메가쏘시에떼아노님 시계 케이스 내에서 측시 무브먼트를 체결하기 위한 시스템
US20220083009A1 (en) * 2020-09-15 2022-03-17 Omega Sa System for fastening a horological movement in a watch case
CN114185256A (zh) * 2020-09-15 2022-03-15 奥米加股份有限公司 用于将钟表机芯紧固在表壳中的紧固系统
CN114185256B (zh) * 2020-09-15 2023-09-05 奥米加股份有限公司 用于将钟表机芯紧固在表壳中的紧固系统
KR20230136581A (ko) * 2020-09-15 2023-09-26 오메가쏘시에떼아노님 시계 케이스 내에서 측시 무브먼트를 체결하기 위한 시스템
KR102614844B1 (ko) 2020-09-15 2023-12-15 오메가쏘시에떼아노님 시계 케이스 내에서 측시 무브먼트를 체결하기 위한 시스템
US11982978B2 (en) * 2020-09-15 2024-05-14 Omega Sa System for fastening a horological movement in a watch case
US20230100861A1 (en) * 2021-09-29 2023-03-30 Eta Sa Manufacture Horlogère Suisse Protective ring for a horology movement and horology movement including said protective ring

Also Published As

Publication number Publication date
JPS4833328Y1 (fr) 1973-10-09

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