US1962056A - Spring-end connection - Google Patents

Spring-end connection Download PDF

Info

Publication number
US1962056A
US1962056A US561918A US56191831A US1962056A US 1962056 A US1962056 A US 1962056A US 561918 A US561918 A US 561918A US 56191831 A US56191831 A US 56191831A US 1962056 A US1962056 A US 1962056A
Authority
US
United States
Prior art keywords
spring
barrel
ring
friction ring
friction
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
US561918A
Other languages
English (en)
Inventor
Henri Colomb
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US1962056A publication Critical patent/US1962056A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • G04B1/00—Driving mechanisms
    • G04B1/10—Driving mechanisms with mainspring
    • G04B1/18—Constructions for connecting the ends of the mainsprings with the barrel or the arbor
    • G04B1/185—Friction clutch between spring and spring cylinder

Definitions

  • This invention relates to spring-end connections in watch or clock barrels and has as its object the provision of means to prevent overwinding and rupture of the main driving spring 5 of timepieces.
  • this friction ring has two spaced ends so as not to extend over the entire circumference of the barrel, the
  • FIG. 1 is a plan view of a spring barrel showing a spring end connection according to the invention, the spring being deenergized.
  • Figure 2 is a similar View of a spring barrel showing the spring in wound up position.
  • FIGS 3, 4 and 5 are fragmentary cross sections through three modifications of a spring end connection according to the invention.
  • Figures 6 and 7 show in elevation and plan, respectively, the friction ring end of the modification according to Fig. 5.
  • 1 indicates the spring barrel the cover of which has been removed.
  • the main driving spring 3 is connected in well known manner to the winding shaft 2.
  • the resilient M. friction ring 4 is applied with pressure against the cylindrical inner wall of the barrel 1. This ring 4 extends over less than the entire circumference of the barrel leaving a free space 10 between its two ends to expose a portion of the l, inner surface of the barrel.
  • the outer end of the driving spring 3 has a blade-shaped end member 5 riveted or otherwise attached to it, this end member extending at the exterior side of the spring rearwardly relative to the spring and being circularly curved and of such length that it can be passed into the space 10 between the two ends of the friction ring to bear with its entire length against the exposed portion of the inner surface of the barrel.
  • a further drawback in attaching the friction ring to the spring consists in that the spring, when fully tensioned, pulls the end of the friction ring where it is attached, towards the interior of the barrel, so that a portion of the ring is not more in contact with the barrel and the value of friction is again changed.
  • Figures 3 to 7 concern modifications of the spring end connection described with reference to Figs. 1 and 2.
  • the friction ring 4 is inserted into a circular groove 9 formed in the barrel wall.
  • the free end 4a (Fig. 4) 4b (Figs. 5 to 7), of the friction ring or of the spring end member has a specially shaped transverse section in order to enlargen the bearing surface and to better prevent the spring end member from sliding off the end of the friction ring.
  • the free end 4b of the friction ring or of the spring end member, or of both the ring and the end member is provided with a central bulged portion 7.
  • a circular spring barrel In a spring driving mechanism, a circular spring barrel, a winding shaft, an open friction ring bearing with its entire length against the inner circular surface of the barrel and being of shorter length than the inner periphery of the barrel so that a portion of the inner surface of the barrel is exposed between the spaced ring ends, a driving spring having its inner end connected to the driving shaft, and a circularly curved blade-shaped member secured to the outer end of the driving spring and being of such length as to freely pass into the space between the two ring ends to bear against the exposed portion of the inner surface of the barrel, whereby one end of said blade-shaped member abuts against one end of the friction ring upon winding of the driving spring.
  • a spring driving mechanism such as defined in claim 3 and wherein the end of the friction ring abutting against said blade-shaped end member upon winding of the driving spring is bulged to enlargen the bearing surface between end member and friction ring.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Operated Clutches (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
  • Springs (AREA)
US561918A 1930-09-17 1931-09-09 Spring-end connection Expired - Lifetime US1962056A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH151392T 1930-09-17

Publications (1)

Publication Number Publication Date
US1962056A true US1962056A (en) 1934-06-05

Family

ID=4406685

Family Applications (1)

Application Number Title Priority Date Filing Date
US561918A Expired - Lifetime US1962056A (en) 1930-09-17 1931-09-09 Spring-end connection

Country Status (3)

Country Link
US (1) US1962056A (fr)
CH (1) CH151392A (fr)
DE (1) DE545964C (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2617248A (en) * 1948-12-31 1952-11-11 Foster H Brown Overwind preventer
US4241534A (en) * 1979-02-14 1980-12-30 Mattel, Inc. Toy vehicle with spring drive mechanism
US20100038925A1 (en) * 2008-08-13 2010-02-18 Aero Industries, Inc. Actuation Mechanism for a Tarping System
JP2014526691A (ja) * 2011-09-15 2014-10-06 ウーテーアー・エス・アー・マニファクチュール・オロロジェール・スイス コア直径が低減された時計の香箱アセンブリ

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1176574B (de) * 1953-10-27 1964-08-20 Dr Reinhard Straumann Federhaus mit Rutschkupplung fuer Selbst-aufzuguhren
DE1061957B (de) * 1958-03-18 1959-07-23 Erich Kallmeyer Blutdruckmesser
DE1192596B (de) * 1958-06-16 1965-05-06 Durowe Ag Selbstaufzuguhr mit kraftschluessiger Kupplung
EP3021172A1 (fr) * 2014-11-11 2016-05-18 Montres Breguet SA Organe moteur pour mouvement d'horlogerie

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2617248A (en) * 1948-12-31 1952-11-11 Foster H Brown Overwind preventer
US4241534A (en) * 1979-02-14 1980-12-30 Mattel, Inc. Toy vehicle with spring drive mechanism
US20100038925A1 (en) * 2008-08-13 2010-02-18 Aero Industries, Inc. Actuation Mechanism for a Tarping System
US8061759B2 (en) * 2008-08-13 2011-11-22 Aero Industries, Inc. Actuation mechanism for a tarping system
JP2014526691A (ja) * 2011-09-15 2014-10-06 ウーテーアー・エス・アー・マニファクチュール・オロロジェール・スイス コア直径が低減された時計の香箱アセンブリ

Also Published As

Publication number Publication date
DE545964C (de) 1932-03-09
CH151392A (fr) 1931-12-15

Similar Documents

Publication Publication Date Title
US1962056A (en) Spring-end connection
US1567783A (en) Key-chain reel
US2644193A (en) Spring sash balance
US9448533B2 (en) Barrel shaft for a clock movement, barrel spring and barrel including such a spring and/or such a shaft
US2617248A (en) Overwind preventer
US2192101A (en) Spiral spring
US3624883A (en) Process for forming spirally wound main springs
GB1341579A (en) Spiral springs and methods of making them
US1415489A (en) Pocket tape
EP0649075B1 (fr) Barillet à ressort délivrant un couple constant
US3625502A (en) Power spring with keeper and bridle
US2036720A (en) Coilable metal tape
US3475901A (en) Winding and hand-setting crown for diver watches
US1565655A (en) Metallic bobbin for photographic or like films
US1922921A (en) Mainspring for watches, clocks, etc.
US3599422A (en) Mainspring slipping ring for a self-winding timepiece
DE601970C (de) Befestigungsvorrichtung fuer mit einer Welle umlaufende Teile
US3358438A (en) Jointed winding stem with screwed-on button
US1699964A (en) Spring
US21255A (en) harrison
US1616569A (en) Time train
US2011081A (en) Coilable metal measuring tape
US497429A (en) Mainspring for watches
US1091561A (en) Safety attachment for watch-springs.
CH181861A (de) Federtriebwerk, insbesondere für Uhren.