US3731482A - Device for fastening a dial to a watch movement - Google Patents

Device for fastening a dial to a watch movement Download PDF

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Publication number
US3731482A
US3731482A US00196372A US3731482DA US3731482A US 3731482 A US3731482 A US 3731482A US 00196372 A US00196372 A US 00196372A US 3731482D A US3731482D A US 3731482DA US 3731482 A US3731482 A US 3731482A
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US
United States
Prior art keywords
dial
holes
feet
pillar plate
plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US00196372A
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English (en)
Inventor
W Glanzmann
R Zaugg
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.)
A Schild SA
Original Assignee
A Schild SA
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 A Schild SA filed Critical A Schild SA
Application granted granted Critical
Publication of US3731482A publication Critical patent/US3731482A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G04B19/06—Dials
    • G04B19/14—Fastening the dials to the clock or watch plates
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53613—Spring applier or remover
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53657—Means to assemble or disassemble to apply or remove a resilient article [e.g., tube, sleeve, etc.]

Definitions

  • the customary devices for fastening dial feet to the pillar plate of watch movements comprise screws or other locking members such as eccentrics or levers which are engaged laterally in holes provided in the edge of the pillar plate.
  • the elastic members are formed of cut plates housed in recesses provided on the back of the pillar plate, these plates being connected to the pillar plate by engagement of a slot which they have at one of their ends onto a pivot which is integral with the against the dial foot is provided along the elastically deformable portion, the plates are brought into diallocking position by rotation around their pivot and cocking, this rotation being controlled by means of a laterally directed tool, while the cocking assures the holding in fastening position thereof.
  • the object of the present invention is therefore to provide a device of the first-mentioned type, the manu facture of which requires only very simple operations which include only a single fastening part and which the said elastic, members in positions in which they are.
  • FIG. 4 is a partial section on a larger scale along the line IV IV of FIG. 3.
  • FIG. 1 there can be noted the device as it is during the mounting of the movement before the putting in place of the dial.
  • the pillar plate 1 has on its bridgeside face two recesses of small height, one of which is shown at 2 in the drawing, each of these recesses being milled in one of the regions where there are provided openings such as the opening 3 intended for the engagement of the feet of the dial.
  • a leaf spring 4 which will preferably be of steel and which comprises the following different portions:
  • the anchoring portion 5 is a cut out rigid linear element with two roundings at its ends, these roundings being force-fitted in corresponding notches in the wall of the recess 2. This portion 5 assures the fastening of the blade 4 to the pillar plate 1.
  • the second portion 6 is a linear arm which extends from the portion 5 and which can flex in a plane parallel to that of the pillar plate. When the leaf spring is in rest position as shown in FIG. I, the end of the portion 6 protrudes to the inside of the periphery of the opening 3. This end of the portion 6 has a bevel 16 the purpose of which will be explained further below.
  • the portion 6 is followed by a third portion 7 having a U or V shape which can itself flex elastically by closing itself slightly.
  • the portion 7 comprises an element which extends approximately in radial direction with respect to the pillar plate 1 and which terminates in the immediate vicinity of the edge of the pillar plate where it forms a protruding head 8 which is rigid. Alongside of this protruding element there is cut out a notch 9 which opens towards the edge of the pillar plate.
  • the leaf spring 4 also has a protrusion 10 which is located approximately on the straight line defined by the bend of the V of the portion 7 and the protruding element 8.
  • FIG. 2 the leaf spring 4 is shown in its position of preparation for the placing of the dial. This operation can be carried out after the mounting of the movement A or upon the placing of the blade 4.
  • the portions 6 and 7 are deformed elastically and are held in this deformed position by engagement of the protruding element 8 in a notch 11 provided in the wall of the recess 2.
  • the side of this notch therefore forms a stop capable of retaining the blade 4 in a flexed position, since the end 5 of this blade is itself fastened rigidly to the pillar plate 1 It is 'seen that when the blade is in this position, the end of the portion 6 and in particular the bevel 16 are displaced out of the limits of the opening 3.
  • the protrusion 10 has come to place itself in front of an'opening 12 which is provided through the pillar plate and to which there corresponds an opening of the same axis and same dimensions providedin one of the bridges of the movement which covers the recess 2.
  • This bridge 13 is shown in FIG. 4 and also has an opening 14 which corresponds to the opening 3.
  • FlG. 2 there is also shown one of the feet 15 of the dial 17.
  • the dial In the position of preparation shown in FIG. 2, the dial can be engaged by its feet entirely free in'the openings 3 and place itself into the exact position which it is to occupy. This operation can be carried out either by placing the dial on a support and engaging the movement on the feet 15 or, on the other hand, by engaging the feet 15 in the openings 3 by displacement of the dial.
  • FIGS. 3 and 4 show the result of the unlocking operation of the blades 4.
  • the end of the portion. 6 of each blade comes to rest laterally against the foot 15.
  • the foot 15 is of brass or in certain cases of copper, while the leaf spring is of steel, the edge of the bevel-l6 engages slightly in the side face of the foot and blocks the dial. The foot is pressed against the wall of the opening 3 so that it cannot move.
  • the bevel 16 is, of course, formed with an inclined plane directed towards the pillar plate.
  • the single part of which it is formed is a leaf spring which can be obtained by a simple cutting operation which is much simpler to carry out than the operations for the manufacture of the screws, levers or eccentrics previously employed.
  • the unlocking of the two leaf springs assuring the fastening of the two feet of an ordinary dial can be effected in a single operation by means of a tool moving in the direction of the axis of the movement.
  • the leaf spring can be moved back easily into its inactive posi'tion, which makes it possible to free the dial while leaving intact the notch formed in the side wall of thefoot by the edge of the bevel 16, so that the dial can be put in place and blocked again under the same conditions as upon the mounting.
  • the location of said notch is automatically determined in such a manner as to prevent any play in the positioning of the dial.
  • Device characterized by the fact that the pillar plate has on its back recesses into each of which there extends an engagement hole of a dial foot and a disengagement hole, and by the fact that the said stops are each formed by the side of a notch provided in the edge of one of the said recesses.
  • the said elastic members are each formed of a spring blade housed in one of the said recesses and having at one of its ends a rigid portion fastened by forcefit between two notches provided in' the edge of the recess.
  • Device characterized by the fact that the disengagement holes are provided in the frame elements fastened to the pillar plate.
  • each elastic member comprises, from one end to the other, a first portion of rigid fastening to the pillar plate, a second linear portion capable of flexing in a plane perpendicular to the foot of the dial with respect to the first portion, said second portion having the said bevel at its end opposite the rigid fastening portion, and
  • a dial having feet adapted to occupy said holes in said plate, resilient means anchored in said plate and normally biased so that a portion thereof intersects-said holes, means to retain said resilient means against said bias with said portion in non-intersecting position, whereby to permit insertion of said feet in said holes, and means to release said resilient means from said retaining means after said feet are in position whereby said portion will engage and hold said feet in said holes.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Connection Of Plates (AREA)
  • Electric Clocks (AREA)
  • Adornments (AREA)
US00196372A 1970-11-26 1971-11-08 Device for fastening a dial to a watch movement Expired - Lifetime US3731482A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1750570A CH540512A (fr) 1970-11-26 1970-11-26 Dispositif pour la fixation d'un cadran sur un mouvement d'horlogerie

Publications (1)

Publication Number Publication Date
US3731482A true US3731482A (en) 1973-05-08

Family

ID=4425948

Family Applications (1)

Application Number Title Priority Date Filing Date
US00196372A Expired - Lifetime US3731482A (en) 1970-11-26 1971-11-08 Device for fastening a dial to a watch movement

Country Status (6)

Country Link
US (1) US3731482A (de)
JP (1) JPS5137797B1 (de)
CH (2) CH1750570A4 (de)
DE (1) DE2152810C3 (de)
FR (1) FR2115159B1 (de)
GB (1) GB1346109A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120124814A1 (en) * 2010-11-23 2012-05-24 Eta Sa Manufacture Horlogere Method and device for securing a display element

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02104031U (de) * 1989-01-25 1990-08-17
JP6504584B1 (ja) * 2018-03-20 2019-04-24 セイコーインスツル株式会社 時計
CN117280285A (zh) * 2021-05-04 2023-12-22 Eta瑞士钟表制造股份有限公司 用于维持或限制钟表部件的间隙的装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US780775A (en) * 1904-04-13 1905-01-24 Harrison S Bookwalter Watch-dial fastener.
US1065952A (en) * 1912-02-23 1913-07-01 Waltham Watch Co Fastener for watch-dials, &c.
US1074130A (en) * 1912-07-02 1913-09-30 William B Miller Dial-fastening device for watches.
CH76707A (fr) * 1917-09-27 1918-02-01 Horlogerie De Granges Soc D Dispositif de fixation d'un cadran à pieds au mouvement d'une montre
US3488943A (en) * 1967-12-19 1970-01-13 Ebauchesfabrik Eta Ag Latching device for the dial on a watch movement

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US780775A (en) * 1904-04-13 1905-01-24 Harrison S Bookwalter Watch-dial fastener.
US1065952A (en) * 1912-02-23 1913-07-01 Waltham Watch Co Fastener for watch-dials, &c.
US1074130A (en) * 1912-07-02 1913-09-30 William B Miller Dial-fastening device for watches.
CH76707A (fr) * 1917-09-27 1918-02-01 Horlogerie De Granges Soc D Dispositif de fixation d'un cadran à pieds au mouvement d'une montre
US3488943A (en) * 1967-12-19 1970-01-13 Ebauchesfabrik Eta Ag Latching device for the dial on a watch movement

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120124814A1 (en) * 2010-11-23 2012-05-24 Eta Sa Manufacture Horlogere Method and device for securing a display element
US8763252B2 (en) * 2010-11-23 2014-07-01 Eta Sa Manufacture Horlogère Suisse Method and device for securing a display element

Also Published As

Publication number Publication date
JPS5137797B1 (de) 1976-10-18
GB1346109A (en) 1974-02-06
DE2152810A1 (de) 1972-06-15
FR2115159B1 (de) 1975-07-18
FR2115159A1 (de) 1972-07-07
DE2152810B2 (de) 1973-12-13
CH540512A (fr) 1973-03-15
CH1750570A4 (de) 1973-03-15
DE2152810C3 (de) 1978-09-28

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