US2465571A - Tight winding device for timepieces - Google Patents

Tight winding device for timepieces Download PDF

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Publication number
US2465571A
US2465571A US620495A US62049545A US2465571A US 2465571 A US2465571 A US 2465571A US 620495 A US620495 A US 620495A US 62049545 A US62049545 A US 62049545A US 2465571 A US2465571 A US 2465571A
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US
United States
Prior art keywords
crown
recess
main body
packing
timepieces
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Expired - Lifetime
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US620495A
Inventor
Boninchi Joseph Antoine
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.)
Boninchi & Ses Fils J
J Boninchi & Ses Fils
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Boninchi & Ses Fils J
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Application filed by Boninchi & Ses Fils J filed Critical Boninchi & Ses Fils J
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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
    • G04B37/08—Hermetic sealing of openings, joints, passages or slits
    • G04B37/10—Hermetic sealing of openings, joints, passages or slits of winding stems
    • 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
    • Y10T403/00—Joints and connections
    • Y10T403/70—Interfitted members
    • Y10T403/7047—Radially interposed shim or bushing

Definitions

  • This invention relates to tight winding devices for time-pieces and more particularly to fluid tight winding crowns in which a compressible packing provides a sealing joint between the body of the crown and the pendant neck of the watch case.
  • an ellicient sealing arrangement in which the compressible packing has a cylindrical main body fitted about and in sealing contact with the pendant neck and spaced radially from the side wall of the crown recess in which it is lodged and a lower flange projecting outwards from the periphery of said main body and compressed between and having sealing contact with a shoulder on the outer wall of the crown recess and a clamping piece borne by said crown.
  • the present invention primarily consists in that the cylindrical main body of this flanged packing is pressed radially against the pendant neck by a crown-shaped spring capping said main body, and the bottom of which bears on the bottom of the crown recess.
  • Fig. l is an axial sectional view of this embodiment and Fig. 2 is an elevation with parts in section of the crown-shaped spring alone,
  • I designates the case band of a watch case, 2 the pendant neck and 3 the winding crown in a, recess 5 of which there is lodged a compressible packing 4 which insures the required fluid tightness of the joint between the pendant neck and the crown.
  • the packing is formed of a cylindrical main body 4a fitted about the neck 2 and a lower flange 4b projecting outwards from the periphery of said main body.
  • the cylindrical main body 4a is lodged with radial clearance in the recess 5 of the crown. Also an axial clearance is provided between the upper end of the main body 4a and the bottom of the crown recess 5.
  • the cylindrical main body la of the packing is pressed radially against the pendant neck 2 by a crown-shaped spring-member 8 capping the body la and having resilient lugs 9 extending downwards from its bottom which bears on the bottom of the crown recess 5.
  • the resilient lugs are slightly arched and their length is rated so that their extremities 9 bear on the upper face of the flange ib of the packing thus ensuring durability of the inward radial pressure of the bellied portion of the lugs against the cylindrical body 4a of the packing.
  • the length of the body do is rated so as to leave an axial clearance between the outer extremity of this body and the bottom of the recess 5.
  • a tight winding device for time pieces, the combination with a case body having a pendant neck fixed thereto, of a crown having an annular recess, a compressible packing fitted about said neck, and including a cylindrical main body spaced radially from the side wall and axially from the bottom of said recess and a lower flange projecting outwards from the periphery of said main body, a shoulder on the outer wall of said recess, a clamping piece borne by said crown, said flange being compressed between and having sealing contact with said shoulder and said clamping piece, and a crown-shaped spring member capping said main body and bearing with its bottom on the bottom of said recess, said crown-shaped member having inwardly bellied resilient lugs extending downwards and bearing by their extremities on said flange of the packing so as to exert by their bellied portions a durable inward radial pressure on said cylindrical body of the packing, said body being thereby in durable sealing contact with said pendant neck.

Description

TIGHT WINDING DEVICE FOR TIMEPIECES Filed 001;. 5, 1945 figi .IZZL/ JZZ'OJ J 1i .25 017/ inch Z) Patented Mar. 29, 1949 TIGHT WINDING DEVICE FOR TIMEPIECES Joseph Antoine Boninchi, Geneva, Switzerland, assignor to J. Boninchi & Ses Fils, Geneva, Switzerland, a firm of Switzerland Application October 5, 1945, Serial No. 620,495 In Switzerland November 15, 1944 1 Claim.
This invention relates to tight winding devices for time-pieces and more particularly to fluid tight winding crowns in which a compressible packing provides a sealing joint between the body of the crown and the pendant neck of the watch case.
According to U. S. Patent No. 2,405,087, granted on July 30, 1946, to the same inventor, an ellicient sealing arrangement is provided in which the compressible packing has a cylindrical main body fitted about and in sealing contact with the pendant neck and spaced radially from the side wall of the crown recess in which it is lodged and a lower flange projecting outwards from the periphery of said main body and compressed between and having sealing contact with a shoulder on the outer wall of the crown recess and a clamping piece borne by said crown.
The present invention primarily consists in that the cylindrical main body of this flanged packing is pressed radially against the pendant neck by a crown-shaped spring capping said main body, and the bottom of which bears on the bottom of the crown recess.
In order that the invention may be completely understood, attention is directed to the accompanying drawing showing an embodiment of the invention.
In the drawing:
Fig. l is an axial sectional view of this embodiment and Fig. 2 is an elevation with parts in section of the crown-shaped spring alone,
In the drawing, I designates the case band of a watch case, 2 the pendant neck and 3 the winding crown in a, recess 5 of which there is lodged a compressible packing 4 which insures the required fluid tightness of the joint between the pendant neck and the crown. The packing is formed of a cylindrical main body 4a fitted about the neck 2 and a lower flange 4b projecting outwards from the periphery of said main body. The cylindrical main body 4a is lodged with radial clearance in the recess 5 of the crown. Also an axial clearance is provided between the upper end of the main body 4a and the bottom of the crown recess 5. Only the flange 4b is compressed at its periphery between a shoulder 6 of the crown and a clamping washer I forced in the lower part of the crown recess and held in place by setting. Obviously the clamping washer may also be in screw threaded engagement with the crown.
The cylindrical main body la of the packing is pressed radially against the pendant neck 2 by a crown-shaped spring-member 8 capping the body la and having resilient lugs 9 extending downwards from its bottom which bears on the bottom of the crown recess 5. The resilient lugs are slightly arched and their length is rated so that their extremities 9 bear on the upper face of the flange ib of the packing thus ensuring durability of the inward radial pressure of the bellied portion of the lugs against the cylindrical body 4a of the packing. The length of the body do is rated so as to leave an axial clearance between the outer extremity of this body and the bottom of the recess 5.
Owing to the combined effect of the durable radial pressure put on the body M by the lugs 9 and of the axial clearance provided between the extremity of said body and the bottom of the crown-shaped spring 8, a very efficient tight joint is obtained with a particularly soft winding of the crown in spite of all the irregularities which occur in the manufacture of the various parts of the device and of the wear of the packing.
It is to be understood that the number and the shape of the resilient lugs may be chosen at will.
What I claim is:
In a tight winding device for time pieces, the combination with a case body having a pendant neck fixed thereto, of a crown having an annular recess, a compressible packing fitted about said neck, and including a cylindrical main body spaced radially from the side wall and axially from the bottom of said recess and a lower flange projecting outwards from the periphery of said main body, a shoulder on the outer wall of said recess, a clamping piece borne by said crown, said flange being compressed between and having sealing contact with said shoulder and said clamping piece, and a crown-shaped spring member capping said main body and bearing with its bottom on the bottom of said recess, said crown-shaped member having inwardly bellied resilient lugs extending downwards and bearing by their extremities on said flange of the packing so as to exert by their bellied portions a durable inward radial pressure on said cylindrical body of the packing, said body being thereby in durable sealing contact with said pendant neck.
JOSEPH ANTOINE BONINCHI.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 2,237,860 Bolle Apr. 8, 1941 2,399,092 Bolle Apr. 23, 1946 2,405,087 Boninchi July 30, 1946 FOREIGN PATENTS Number Country Date 140,469 Switzerland Nov, 17, 1930 209,993 Switzerland Aug, 16, 1940
US620495A 1944-11-15 1945-10-05 Tight winding device for timepieces Expired - Lifetime US2465571A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH2465571X 1944-11-15

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2682146A (en) * 1947-08-01 1954-06-29 Theresia M Wachter Waterproof watch
US2779153A (en) * 1951-07-13 1957-01-29 Soguel Rene Crown for waterproof watches
US4561763A (en) * 1984-08-03 1985-12-31 Xerox Corporation Drum support apparatus
US20030174590A1 (en) * 2002-03-14 2003-09-18 Yasuo Arikawa Push button structure and an electronic device and timepiece having the same
US20140286146A1 (en) * 2013-03-21 2014-09-25 Casio Computer Co., Ltd. Switch device and timepiece including switch device
US20150234358A1 (en) * 2014-02-19 2015-08-20 Casio Computer Co., Ltd. Switch device and timepiece

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH140469A (en) * 1929-06-29 1930-06-15 Wachter Frank Clock.
CH209993A (en) * 1938-09-07 1940-05-31 Colomb Henri Watch.
US2237860A (en) * 1937-12-09 1941-04-08 Bolle Leon Fluidtight closure for watchcases
US2399092A (en) * 1943-03-24 1946-04-23 Bolle Leon Air or watertight device for timepieces
US2405087A (en) * 1941-09-30 1946-07-30 Boninchi & Ses Fils J Tight winding device for timepieces

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH140469A (en) * 1929-06-29 1930-06-15 Wachter Frank Clock.
US2237860A (en) * 1937-12-09 1941-04-08 Bolle Leon Fluidtight closure for watchcases
CH209993A (en) * 1938-09-07 1940-05-31 Colomb Henri Watch.
US2405087A (en) * 1941-09-30 1946-07-30 Boninchi & Ses Fils J Tight winding device for timepieces
US2399092A (en) * 1943-03-24 1946-04-23 Bolle Leon Air or watertight device for timepieces

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2682146A (en) * 1947-08-01 1954-06-29 Theresia M Wachter Waterproof watch
US2779153A (en) * 1951-07-13 1957-01-29 Soguel Rene Crown for waterproof watches
US4561763A (en) * 1984-08-03 1985-12-31 Xerox Corporation Drum support apparatus
US20030174590A1 (en) * 2002-03-14 2003-09-18 Yasuo Arikawa Push button structure and an electronic device and timepiece having the same
US20140286146A1 (en) * 2013-03-21 2014-09-25 Casio Computer Co., Ltd. Switch device and timepiece including switch device
US8905631B2 (en) * 2013-03-21 2014-12-09 Casio Computer Co., Ltd. Switch device and timepiece including switch device
US20150234358A1 (en) * 2014-02-19 2015-08-20 Casio Computer Co., Ltd. Switch device and timepiece
US9523961B2 (en) * 2014-02-19 2016-12-20 Casio Computer Co., Ltd. Switch device and timepiece

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