US3817026A - Watch case - Google Patents

Watch case Download PDF

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Publication number
US3817026A
US3817026A US00400141A US40014173A US3817026A US 3817026 A US3817026 A US 3817026A US 00400141 A US00400141 A US 00400141A US 40014173 A US40014173 A US 40014173A US 3817026 A US3817026 A US 3817026A
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US
United States
Prior art keywords
bolt
control member
bolting
watch case
elements
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
US00400141A
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English (en)
Inventor
A Lopez
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.)
Manuf De Boites De Mintres S G
Manufacture De Boites De Mintres S Graber Sa ch
Original Assignee
Manuf De Boites De Mintres S G
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 Manuf De Boites De Mintres S G filed Critical Manuf De Boites De Mintres S G
Application granted granted Critical
Publication of US3817026A publication Critical patent/US3817026A/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
    • G04B37/00—Cases
    • G04B37/0008—Cases for pocket watches and wrist watches
    • G04B37/0016—Cases for pocket watches and wrist watches with folding cover or folding bottom (hinge without spring)

Definitions

  • ABSTRACT An elongated bolt holds both the front and back covers of the watch case in closed position. A pair of balls are movable behind the bolt and a control member acts on its middle portion. When pressing it the bolt tilts around the control member, lower end due to the presence of the lower ball and the upper cover unbolts.
  • the present invention relates to a watch case including a bolting device controlling several movable elements, characterized in that it includes a single control member, the same movement of which controls the selective bolting or unbolting of one orthe other of the said movable elements, according to the position of the case.
  • FIG. 1 is a partial axial sectional view along the axis of the pendant
  • P16. 2 is a partial sectional view along the line llll of the FIG. 1.
  • the drawing shows a pocket-watch case, the middle 1 of which maintains in its center opening movement and a dial (not shown).
  • a crystal 2 is fixed by conventional means, such as a snap fitting to an edge of the middle 1, while over the other face of this middle, there extends a dome 3 which is fixed by exactly the same v means. If desired, this dome could be made of transparent material.
  • the case described is likewise equipped with a front cover 4 and a back cover 5. Each of these covers pivots around a hinge on the middle 1, the hinges being situated at a location diametrically opposed to that which is visible in FIG. 1. The visible portion of that figure is the one which is situated on the side of the pendant shown at 6.
  • This tubular part is driven into a radial opening of the middle I; and passing through it along its axis is a winding stem 7, which carries at its outer end a crown (not shown) and which extends inside the movement through a cylindrical passage traversing the entire thickness of the middle.
  • the diameter of the outer portion of this passage apprecia bly exceeds that of the stem 7.
  • the middle 1 is pierced, parallel to the axis of the movement, by two cylindrical holes 9 and 10 having parallel axes but differing diameters and which encroach upon one another. As will be seen in FIG.
  • the hole 9 furthermore extends into the grooves which form the edges of the crystal 2 and of the dome 3, whereas these grooves, which ensure the fastening of the elements 2 and 3, cover the ends of the hole 10.
  • the holes 9 and 10 are situated a plane diametrically intersecting the case and passing through the axis of the stem 7; the diameter of the hole 10 is smaller than that of the hole 9, and the latter is off-set toward the outside with respect to the hole 10.
  • the two covers 4 and 5 have, in the portions of them which are diametrically opposed to the hinge, inner edges 11 and 12 which project toward the inside and slightly overhang the ends of the hole 9.
  • the bolting itself is ensured and controlled by a device composed of parts lodged in the holes 9 and and in the annular space comprised between the stem 7 and the wall of the passage through which it passes.
  • a coil-spring l3 presses against the shoulder 8 and tends to displace outwardly a sleeve 14 which follows it in the radial passage provided for the stem 7. This sleeve cuts the hole 10 into two parts and imprisons within each of the two end portions of this hole one of two balls 15 and 16, each of which can run along in the hole.
  • a bolt 17 which consists of a profile-tumed part, generally cylindrical in shape, having at each end first a bevel 18, then a groove of rectangular profile 19, the width of which is adjusted to the thickness of each of the edges 11 and 12 which fits into it, then a collar 20, the diameter of which is smaller than that of the hole 9, then an arc-profiled groove 21, the rounding of this groove being equal to the radius of each of the balls 15 and 16.
  • a portion of this part having a diameter equal to that of the collars 20, but with two parallel and symmetrical flat faces 22 and being pierced by a hole coaxial with the stem 7.
  • the device also includes a tube 23 engaged around the stem 7 on the outward side of the case, in such a way that it can be actuated in the direction of the axis of the stem by the winding crown.
  • the tube 23 can slide in the radial passage of the middle, and the end of it is in contact with one of the flat faces 22, while the sleeve 14 is in contact with the other flat face.
  • the bolt can only pivot around an axis perpendicular to the plane of the drawing and situated at the level of the lower collar 20. This movement displaces the upper end of the bolt, as is shown by the dot-dash lines in FIG. 1, against the action of spring 13, which is compressed by the displacement of the sleeve 14.
  • the cover 4 is unbolted, while the cover 5 remains locked.
  • Cover is bolted automatically by pressure upon it.
  • the edge 11 pushes against the bevel 18 so that the bolt returns to the position shown in dot-dash lines until the edge 11 is engaged in the groove 19 of the upper end of the bolt.
  • the spring 13 then ensures the bolting.
  • the device described above may be designed differently, if so desired, and may serve selectively to bolt and unbolt other elements than the cover and, as the case may be, more than two such elements.
  • a bolting device for bolting said elements, said device comprising a control member (23) bolting means operatively connected to said control member and locking means 15, 16) movable under the action of their weight and cooperating with said bolting means at difi'erent'locations according to the position of the case, said locking means thus compelling said bolting means to displace differently in response to a definite displacement of said control member and to selectively bolt and unbolt a different one of said movable elements according to the position of the case.
  • said movable elements comprising front and back covers hinged around parallel axis, said bolting means comprising an elongated bolt freely engaging a first cylindrical hole perpendicular to said axis, said locking means comprising a pair of locking elements each of which cooperates with said bolt at one end thereof and said control memher being arranged to act on a middle portion of said bolt.
  • each of said locking elements being a ball and said balls being guided in a second cylindrical hole parallel to and intersecting said first hole, and said bolt having at each end a catching groove for one of said movable elements, a collar and an arc-profiled groove, each of said collar and arc-profiled groove cooperating with another one of said balls.
  • control member being a tube mounted perpendicularly to said bolt and acting with its innerrend on a flat portion of said bolt.
  • said device comprising a tube portion lodged opposite said control member and a spring sustaining said tube portion to restore said control member and said bolt in a bolting position after an unbolting displacement.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
US00400141A 1972-09-28 1973-09-24 Watch case Expired - Lifetime US3817026A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1420072A CH571739B5 (enrdf_load_stackoverflow) 1972-09-28 1972-09-28

Publications (1)

Publication Number Publication Date
US3817026A true US3817026A (en) 1974-06-18

Family

ID=4398764

Family Applications (1)

Application Number Title Priority Date Filing Date
US00400141A Expired - Lifetime US3817026A (en) 1972-09-28 1973-09-24 Watch case

Country Status (3)

Country Link
US (1) US3817026A (enrdf_load_stackoverflow)
CH (2) CH571739B5 (enrdf_load_stackoverflow)
FR (1) FR2201496B3 (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100220562A1 (en) * 2009-02-20 2010-09-02 Yoshio Hozumi Portable watch
US20210088974A1 (en) * 2019-09-20 2021-03-25 The Swatch Group Research And Development Ltd Sub-assembly of external parts for timepiece or watch or a piece of jewellery
US11415944B2 (en) * 2019-06-17 2022-08-16 Omega Sa Timepiece, in particular a pocket watch, equipped with at least one cover
US11442411B2 (en) * 2018-06-28 2022-09-13 Montres Jaquet Droz Sa Timepiece, in particular a pocket watch, equipped with at least one cover
US11650547B2 (en) 2019-09-20 2023-05-16 The Swatch Group Research And Development Ltd Sub-assembly of external parts for timepiece or watch or a piece of jewellery

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US308445A (en) * 1884-11-25 Watch-case spring
US3444685A (en) * 1967-01-31 1969-05-20 Georges Juillerat Device for actuating openable cover members for watch face

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US308445A (en) * 1884-11-25 Watch-case spring
US3444685A (en) * 1967-01-31 1969-05-20 Georges Juillerat Device for actuating openable cover members for watch face

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100220562A1 (en) * 2009-02-20 2010-09-02 Yoshio Hozumi Portable watch
US7942574B2 (en) * 2009-02-20 2011-05-17 Seiko Instruments Inc. Portable watch
US11442411B2 (en) * 2018-06-28 2022-09-13 Montres Jaquet Droz Sa Timepiece, in particular a pocket watch, equipped with at least one cover
US11415944B2 (en) * 2019-06-17 2022-08-16 Omega Sa Timepiece, in particular a pocket watch, equipped with at least one cover
US20210088974A1 (en) * 2019-09-20 2021-03-25 The Swatch Group Research And Development Ltd Sub-assembly of external parts for timepiece or watch or a piece of jewellery
US11630422B2 (en) * 2019-09-20 2023-04-18 The Swatch Group Research And Development Ltd Sub-assembly of external parts for timepiece or watch or a piece of jewellery
US11650547B2 (en) 2019-09-20 2023-05-16 The Swatch Group Research And Development Ltd Sub-assembly of external parts for timepiece or watch or a piece of jewellery

Also Published As

Publication number Publication date
CH571739B5 (enrdf_load_stackoverflow) 1976-01-15
FR2201496A1 (enrdf_load_stackoverflow) 1974-04-26
FR2201496B3 (enrdf_load_stackoverflow) 1976-08-20
CH1420072A4 (enrdf_load_stackoverflow) 1975-08-15

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