US3608304A - Watch battery compartment closure cap - Google Patents

Watch battery compartment closure cap Download PDF

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Publication number
US3608304A
US3608304A US54693A US3608304DA US3608304A US 3608304 A US3608304 A US 3608304A US 54693 A US54693 A US 54693A US 3608304D A US3608304D A US 3608304DA US 3608304 A US3608304 A US 3608304A
Authority
US
United States
Prior art keywords
disc
cap
battery compartment
closure cap
crown
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
US54693A
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English (en)
Inventor
Jean Schaad
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.)
Voumard Machines Co SA
Original Assignee
Voumard Machines Co 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 Voumard Machines Co SA filed Critical Voumard Machines Co SA
Application granted granted Critical
Publication of US3608304A publication Critical patent/US3608304A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C10/00—Arrangements of electric power supplies in time pieces

Definitions

  • WATCHBATTERY COMPARTMENT CLOSURE CAP Filed July 14, 1970 INVENTOR.
  • the present invention has for object a cap which is mounted in a bayonet fitting for closing the partition of the source of current of an electric watch.
  • This cap is characterised by the fact that it comprises a circular disc provided with gripping means permitting to rotate it, this circular disc carrying, located on one of its faces, a thin crown shaped member secured to the disc in at least some points of its inner edge, this thin member being provided, at its periphery, with a set of ears angularly distributed equally from each other, protruding on the lateral face of the disc and constituting fastening means permitting to mount the cap in a bayonet fitting on an element provided with an aperture which has to be closed by this cap.
  • the drawing shows, by way of example, one embodiment of the object of the invention.
  • FIG. 1 is a partial sectional view of an electric watch passing through the axis of the source of current
  • FIG. 2 is a plan view, from below, of the cap closing the aperture of the back of the casing through which the battery is put in place and is removed.
  • the movement of the electric watch represented comprises a base-plate 1 carrying a dial 2; it is located in a waterproof casing comprising a back member made of one piece with the middle part 3, and a glass 4 held in place by a false middle part 5.
  • the portion 3a of the back and middle part element 3, which constitutes really the back, is provided with a circular aperture 6 permitting to put in place and to remove an electric battery 7 feeding the movement.
  • This aperture 6 is closed by a cap comprising a circular disc 8 in which are provided two diametrical grooves 9, at right angle to each other, intended to serve as gripping means for a driving member, for instance a coin, permitting to rotate the disc 8 when the cap has to be put in place or to be removed.
  • a driving member for instance a coin
  • the aperture 6 is provided with notches, not repre sented, through which are introduced assembling ears of the disc 8, as disclosed hereafter.
  • the disc 8 is provided with a circular groove 10 in which is located a thin crown shaped member 11 the inner edge of which is provided with several notches 12 in which are engaged embossments 8a of the disc 8, in such a way that the disc is angularly rigid with the crown 11.
  • the material of the disc 8, along the embossments 8a, which has been represented at 13 in FIG. 1 as being lifted, is intended to be turned down onto the inner edge of the crown 11, in a setting operation, so that the crown and the disc is definitely assembled to each other.
  • the crown 11 is provided, at its periphery, with six outer ears 11a protruding on the lateral face, designated by 14, of the disc 8, and by means of which the cap is 3,608,304 Patented Sept. 28, 1971 mounted in a bayonet fitting on the back and middle part element 3-3a, these ears engaging into inner recesses 15 provided in the back, and under portion 3a of this latter.
  • a sealing gasket 16 is located between an edge 8a of the disc 8 and the back.
  • the crown 11 is provided with three radial arms 11b directed towards its centre, prolonged with arc-shaped parts 110. These arms and these arc-shaped parts, which are resilient, are bent so as to be located at a distance from the disc 8, that permits them to be applied elastically against the battery 7, on the one hand for holding it in place and on the other hand for ensuring the electric contact of one of the terminals of this battery with the mass constituted by the casing and the movement.
  • the present arrangement of the cap made of two elements which are definitely assembled to each other, has the advantage, with respect to a cap mounted in a bayonet fitting the ears of which would be made of one piece with its body, to facilitate its manufacture.
  • the disc 8 can be easily obtained by stamping or cutting, that could not be the case if its lateral face 14 should have to be provided with ears, and the crown shaped member 11 can be easily stamped due to its thinness.
  • an elastic fitting of the cap can be obtained without its ears having to protrude much on the lateral face 14 of the disc 8, as it would be the case if such ears, made of one piece with the disc, should have to be able to yield elastically.
  • the whole width of the crown 11 can yield, that is to say the crown 11 can yield from the outer edge of its ears 11a up to its inner edge, at the place of the setting 13, that gives it a higher degree of flexibility than if its sole protruding portion would be able to be deformed.
  • Cap intended to be mounted in a bayonet fitting, for closing the compartment of the source of current of an electric watch, characterised by the fact that it comprises a circular disc provided with gripping means adapted to rotate it, this circular disc carrying, located on one of its faces, a thin crown shaped member secured to the disc in at least some points of its inner edge, this thin member being provided, at its periphery, with a set of ears angularly distributed equally from each other, protruding on the lateral face of the disc and constituting fastening means adapted to mount the cap in a bayonet fitting on an element provided with an aperture which has to be closed by this cap.
  • crown shaped member is provided with at least two arms radially directed inwardly, bent in such a way as to be located at a certain distance from the inner face of the disc, these arms being intended to bear resiliently on the source of current which is located opposite the aperture which is to be closed by the cap.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Battery Mounting, Suspending (AREA)
  • Electromechanical Clocks (AREA)
US54693A 1969-07-15 1970-07-14 Watch battery compartment closure cap Expired - Lifetime US3608304A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1076369A CH537611A (fr) 1969-07-15 1969-07-15 Bouchon pour la fermeture du compartiment de la source de courant d'une montre électrique

Publications (1)

Publication Number Publication Date
US3608304A true US3608304A (en) 1971-09-28

Family

ID=4366573

Family Applications (1)

Application Number Title Priority Date Filing Date
US54693A Expired - Lifetime US3608304A (en) 1969-07-15 1970-07-14 Watch battery compartment closure cap

Country Status (5)

Country Link
US (1) US3608304A (US20100154137A1-20100624-C00004.png)
CH (2) CH537611A (US20100154137A1-20100624-C00004.png)
DE (1) DE2036095A1 (US20100154137A1-20100624-C00004.png)
FR (1) FR2051766A1 (US20100154137A1-20100624-C00004.png)
GB (1) GB1297413A (US20100154137A1-20100624-C00004.png)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3736741A (en) * 1970-11-27 1973-06-05 Rolex Montres Device for securing an electrical cell in a timepiece movement
US3943699A (en) * 1975-01-13 1976-03-16 Motorola, Inc. Ultra thin electronic watch
US3945195A (en) * 1975-01-13 1976-03-23 Motorola, Inc. Ultra thin electronic watch with improved visibility display
US3984257A (en) * 1975-06-27 1976-10-05 Hughes Aircraft Company No fault battery insertion device
US4068466A (en) * 1975-03-11 1978-01-17 Jean-Louis Kernen Coupling device of the back-cover and the middle of a waterproof shaped watch-case
US4228389A (en) * 1976-12-22 1980-10-14 National Semiconductor Corporation Non-reversible consumer replaceable watch battery
US4276632A (en) * 1978-09-22 1981-06-30 Heiwado Boeki Kabushiki Kaisha Hatch locking mechanism for the battery compartment of a wristwatch
FR2508667A1 (fr) * 1981-06-24 1982-12-31 Ebauchesfabrik Eta Ag Procede et moyens pour monter de facon etanche une pile dans une boite de montre
US4525079A (en) * 1982-12-13 1985-06-25 Gebruder Schmidt GMBH & Co. KG System for retaining a wall on a clock housing
US4845694A (en) * 1986-12-17 1989-07-04 Eta Sa Fabriques D'ebauches Battery cap for a watch case
US5010532A (en) * 1988-06-30 1991-04-23 Eta Sa Fabriques D'ebauches Electronic watch having an opening for receiving a battery and a cover closing this opening, and method of mass-producing this watch
US5923622A (en) * 1998-02-09 1999-07-13 Leader International Watch Co., Ltd. Watch case back cover assembly

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5213544Y2 (US20100154137A1-20100624-C00004.png) * 1971-06-11 1977-03-26
DE102005046931B4 (de) * 2005-09-30 2007-11-15 Siemens Ag Vorrichtung zum Verriegeln von Deckeln

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3736741A (en) * 1970-11-27 1973-06-05 Rolex Montres Device for securing an electrical cell in a timepiece movement
US3943699A (en) * 1975-01-13 1976-03-16 Motorola, Inc. Ultra thin electronic watch
US3945195A (en) * 1975-01-13 1976-03-23 Motorola, Inc. Ultra thin electronic watch with improved visibility display
US4068466A (en) * 1975-03-11 1978-01-17 Jean-Louis Kernen Coupling device of the back-cover and the middle of a waterproof shaped watch-case
US3984257A (en) * 1975-06-27 1976-10-05 Hughes Aircraft Company No fault battery insertion device
US4228389A (en) * 1976-12-22 1980-10-14 National Semiconductor Corporation Non-reversible consumer replaceable watch battery
US4276632A (en) * 1978-09-22 1981-06-30 Heiwado Boeki Kabushiki Kaisha Hatch locking mechanism for the battery compartment of a wristwatch
FR2508667A1 (fr) * 1981-06-24 1982-12-31 Ebauchesfabrik Eta Ag Procede et moyens pour monter de facon etanche une pile dans une boite de montre
CH646577GA3 (fr) * 1981-06-24 1984-12-14 Ebauchesfabrik Eta Ag Procédé d'usinage du fond d'une boîte de montre moyens pour la mise en oeuvre du procédé et boîte de montre résultant de la mise en oeuvre du procédé.
US4488345A (en) * 1981-06-24 1984-12-18 Eta S.A., Fabriques D'ebauches Method and apparatus for assembling a watch case having improved structure for installing a battery cell
US4525079A (en) * 1982-12-13 1985-06-25 Gebruder Schmidt GMBH & Co. KG System for retaining a wall on a clock housing
US4845694A (en) * 1986-12-17 1989-07-04 Eta Sa Fabriques D'ebauches Battery cap for a watch case
US5010532A (en) * 1988-06-30 1991-04-23 Eta Sa Fabriques D'ebauches Electronic watch having an opening for receiving a battery and a cover closing this opening, and method of mass-producing this watch
US5923622A (en) * 1998-02-09 1999-07-13 Leader International Watch Co., Ltd. Watch case back cover assembly

Also Published As

Publication number Publication date
FR2051766A1 (US20100154137A1-20100624-C00004.png) 1971-04-09
CH537611A (fr) 1973-02-15
CH1076369A4 (US20100154137A1-20100624-C00004.png) 1973-02-15
GB1297413A (US20100154137A1-20100624-C00004.png) 1972-11-22
DE2036095A1 (de) 1971-02-11

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