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CH317198A - Antimagnetic watch box - Google Patents

Antimagnetic watch box

Info

Publication number
CH317198A
CH317198A CH317198DA CH317198A CH 317198 A CH317198 A CH 317198A CH 317198D A CH317198D A CH 317198DA CH 317198 A CH317198 A CH 317198A
Authority
CH
Switzerland
Prior art keywords
magnetic material
box according
watch box
envelopes
antimagnetic
Prior art date
Application number
Other languages
French (fr)
Original Assignee
Rolex Montres
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 Rolex Montres filed Critical Rolex Montres
Publication of CH317198A publication Critical patent/CH317198A/en

Links

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
    • G04B43/00—Protecting clockworks by shields or other means against external influences, e.g. magnetic fields

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)

Description

  

  Boîte de     montre        antimagnétique       L'objet de la présente invention est une  boîte de montre     antimagnétique.    Cette boîte  est caractérisée par le fait qu'elle est constituée  par deux enveloppes fermées, en métal magné  tique, disposées à distance l'une dans l'autre  et reliées entre elles par des pièces en matière  non magnétique.  



  Le dessin ci-annexé représente, à titre  d'exemple, une forme d'exécution de l'objet de  l'invention.  



  L'unique figure du dessin en est une coupe  verticale axiale.  



  La boîte représentée comprend deux enve  loppes disposées à distance l'une dans l'autre  et toutes deux entièrement en une matière ma  gnétique, par exemple en fer doux.  



  L'enveloppe extérieure 1 comprend un  fond la vissé dans une carrure 1b sur laquelle  est montée la lunette<B>le</B> portant la glace 2.  Sous le rehaut     1d    de la carrure est disposée  une plaque 1e, aussi en matière magnétique,  qui constitue la plaque de cadran.  



  La boîte intérieure 3, qui renferme le mou  vement A, est constituée par un fond-calotte  3a fermé par un couvercle 3b, ces parties étant  toutes deux en matière magnétique. 4 est un  anneau en matière non magnétique, par exem  ple en laiton, dans lequel est engagé le couver  cle 3b, et qui sert au centrage de l'enveloppe 3  dans l'enveloppe 1. Entre le fond de ces deux  enveloppes est disposé un ressort-lame 5, éga-         lement    en matière non     magnétique,    qui presse  l'anneau 4 contre la plaque de cadran le.  



  L'expérience a montré qu'en utilisant deux  enveloppes magnétiques fermées, disposées, à  distance, l'une dans l'autre, on arrivait à sup  primer tout champ     magnétique        dans    l'enve  loppe intérieure.



  Antimagnetic watch case The object of the present invention is an antimagnetic watch case. This box is characterized by the fact that it consists of two closed envelopes, made of magnetic metal, arranged at a distance one inside the other and interconnected by pieces of non-magnetic material.



  The accompanying drawing represents, by way of example, an embodiment of the object of the invention.



  The only figure in the drawing is an axial vertical section.



  The box shown comprises two envelopes arranged at a distance one inside the other and both entirely of a magnetic material, for example of soft iron.



  The outer casing 1 comprises a back the screwed into a caseband 1b on which is mounted the bezel <B> le </B> carrying the crystal 2. Under the flange 1d of the caseband is placed a plate 1e, also in magnetic material. , which constitutes the dial plate.



  The inner box 3, which contains the movement A, consists of a bottom-cap 3a closed by a cover 3b, these parts both being made of magnetic material. 4 is a ring made of non-magnetic material, for example brass, in which the cover 3b is engaged, and which serves for centering the casing 3 in the casing 1. Between the bottom of these two casings is arranged a leaf spring 5, also of non-magnetic material, which presses the ring 4 against the dial plate le.



  Experience has shown that by using two closed magnetic envelopes, placed at a distance, one inside the other, one succeeds in suppressing any magnetic field in the inner envelope.

Claims (1)

REVENDICATION Boîte de montre antimagnétique, caractéri sée par le fait qu'elle est constituée par deux enveloppes fermées, en métal magnétique, dis posées à distance l'une dans l'autre et reliées entre elles par des pièces en matière non ma gnétique. SOUS-REVENDICATIONS 1. Boîte selon la revendication, caractérisée par le fait que l'enveloppe extérieure présente un couvercle faisant office de plaque de cadran. 2. Boîte selon la revendication, caractérisée par le fait que l'enveloppe intérieure est enga gée dans un anneau, en matière non magnéti que, qui sert à la centrer dans l'enveloppe exté rieure. 3. CLAIM Antimagnetic watch case, characterized by the fact that it consists of two closed envelopes, in magnetic metal, placed at a distance one inside the other and connected to each other by parts made of non-magnetic material. SUB-CLAIMS 1. Box according to claim, characterized in that the outer casing has a cover serving as a dial plate. 2. Box according to claim, characterized in that the inner casing is engaged in a ring, of non-magnetic material, which serves to center it in the outer casing. 3. Boîte selon la revendication et les sous- revendications 1 et 2, caractérisée par un res sort, en matière non magnétique, disposé entre les deux enveloppes et pressant l'anneau sus mentionné contre la plaque de cadran. Box according to claim and sub-claims 1 and 2, characterized by a res out, in non-magnetic material, disposed between the two envelopes and pressing the aforementioned ring against the dial plate.
CH317198D 1954-09-28 1954-09-28 Antimagnetic watch box CH317198A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH317198T 1954-09-28

Publications (1)

Publication Number Publication Date
CH317198A true CH317198A (en) 1956-11-15

Family

ID=4496694

Family Applications (1)

Application Number Title Priority Date Filing Date
CH317198D CH317198A (en) 1954-09-28 1954-09-28 Antimagnetic watch box

Country Status (1)

Country Link
CH (1) CH317198A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2061561A1 (en) * 1969-07-01 1971-06-25 Saves Gilbert
JPS5028195B1 (en) * 1970-09-12 1975-09-12
WO1997014081A1 (en) * 1995-10-12 1997-04-17 Marco Scaccabarozzi Watch with an electronic mechanism enclosed in a screening element
WO2007012939A1 (en) * 2005-07-29 2007-02-01 Richemont International S.A. Case for screening magnetic fields
DE102009044651A1 (en) * 2009-11-25 2011-05-26 Vacuumschmelze Gmbh & Co. Kg Mechanical clock i.e. mechanical wristwatch, has magnetic shields made of alloy and comprising pot and lid that are connected with each other using spring and screw thread, where separated parts of shields are designed in plate-shape
EP2360536A2 (en) 2010-02-15 2011-08-24 Ball Watch Company SA Antimagnetic and antishock support for a timepiece movement

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2061561A1 (en) * 1969-07-01 1971-06-25 Saves Gilbert
JPS5028195B1 (en) * 1970-09-12 1975-09-12
WO1997014081A1 (en) * 1995-10-12 1997-04-17 Marco Scaccabarozzi Watch with an electronic mechanism enclosed in a screening element
WO2007012939A1 (en) * 2005-07-29 2007-02-01 Richemont International S.A. Case for screening magnetic fields
DE102009044651A1 (en) * 2009-11-25 2011-05-26 Vacuumschmelze Gmbh & Co. Kg Mechanical clock i.e. mechanical wristwatch, has magnetic shields made of alloy and comprising pot and lid that are connected with each other using spring and screw thread, where separated parts of shields are designed in plate-shape
DE102009044651B4 (en) * 2009-11-25 2011-11-03 Vacuumschmelze Gmbh & Co. Kg Clock with magnetic shield
EP2360536A2 (en) 2010-02-15 2011-08-24 Ball Watch Company SA Antimagnetic and antishock support for a timepiece movement

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