US3138916A - Watch movement - Google Patents

Watch movement Download PDF

Info

Publication number
US3138916A
US3138916A US175438A US17543862A US3138916A US 3138916 A US3138916 A US 3138916A US 175438 A US175438 A US 175438A US 17543862 A US17543862 A US 17543862A US 3138916 A US3138916 A US 3138916A
Authority
US
United States
Prior art keywords
wheel
wheel assembly
pinion
seconds
watch movement
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
US175438A
Inventor
Beaumann Raymond
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.)
DERBY S A
Original Assignee
DERBY S A
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 DERBY S A filed Critical DERBY S A
Application granted granted Critical
Publication of US3138916A publication Critical patent/US3138916A/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
    • G04B33/00—Calibers
    • 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
    • G04B33/00—Calibers
    • G04B33/10—Calibers with seconds hand arranged in the centre of the dial

Definitions

  • the present invention concerns a watch movement for use with a sweep or conventional seconds hand, in which the axis of the so-called third wheel assembly and the axis of the escape wheel assembly is eachat equal distances from the axes of the two seconds wheel assemblies.
  • the watch movement according to the invention is characterised in that the teeth of the barrel mesh with a pinion of the large driving wheel mounted eccentrically with regard to the center of the movement, the large driving wheel operating the third wheel assembly, and the latter, according to the choice made, either a sweep or conventional seconds wheel assembly or seconds gear.
  • the escape wheel assembly or escape gear is driven by the seconds gear, and the axis of the large driving wheel is offset from the axes of the other gears in order to avoid superposition of the gear wheels and to obtain reduction of the thickness of the movement.
  • FIG. 1 is a diagrammatic plan view of the first embodiment with sweep seconds hand.
  • FIG. 2 is a sectional view taken along the line IIII of FIG. 1.
  • FIG. 3 is a diagrammatic plan view of the second embodiment with ordinary seconds hand.
  • FIGS. 4 and 5 are sectional views taken along the lines IV-IV and V-V respectively of FIG. 3.
  • the main spring barrel 1 of the first embodiment (FIGS. 1 and 2) has teeth 2 engaging a large driving wheel pinion 3 whose axis A is radially spaced from the center C of the watch movement.
  • the large driving wheel 4 meshes with the pinion 5 of the third wheel assembly.
  • the third wheel 6 fixed to the arbor of the pinion 5 engages a sweep seconds pinion 7, the arbor 8 of which carries a sweep seconds hand (not shown).
  • the sweep seconds wheel 9 fixed to the arbor 8 is in mesh with the escape pinion 10.
  • the escape wheel 11 acts on the pin pallet fork 12. Therefore, the sweep seconds means isaso called direct seconds means.
  • the large driving wheel assembly 3, 4 and the third wheel assembly 5, 6 are both rotatably'mountd on the pillar United States Pate i 3,138,916 Patented June30, 1964 fixed to the pillar plate 13.
  • the escape wheel assembly 10, 11 is rotatably mounted on the pillar plate 13 and on the train wheel bridge 14.
  • the pin pallet fork 12 is rotatably supported on the pillar plate 13 and on a cock 17. 18 designates the balance and 19 (FIG. 1) the hairspring.
  • the barrel ratchet wheel is designated 20 and the crown wheel 21.
  • a quadrangular plate 22 with rounded corners is dis posed in a recess of the train wheel bridge 14 to which it is fixed by means of a screw 23.
  • the plate 22 carries four cap pieces or bearings 24 to 27, the first three cap pieces 24 to 26 serving to rotatably support the third wheel assembly 5, 6, the sweep seconds Wheel assembly 7, 9 and the escape Wheel assembly 10, 11.
  • the cap piece 27 is not used in this embodiment and is only used to support the arbor of an ordinary or conventional seconds hand when the sweep seconds hand isomitted as is described with reference to FIGS. 3 to 5.
  • the axis B of the third wheel assembly 5, 6 and the axis D of the escape wheel assembly 10, 11 is each at equal distances from the axes of the two seconds wheel assemblies, i.e.
  • EEC and ECD form two isosceles triangles having a common base EC.
  • the axis A of the large driving wheel assembly 3, 4 is spaced from the axes B, C, D, E, so that the line ABCD of FIG. 1, indicating the path of force transmission from the large driving wheel to the escapement, is an angular forward line with no oppositely directed portions.
  • An intermediate wheel 20 mounted on the arbor of the large driving wheel assembly 3, 4 with friction produced by a wire spring 28 is in mesh with the minute wheel 30 which engages the cannon pinion 31 that is plate 13 and on the train wheel bridge 14.
  • the sweep seconds arbor 8 is rotatably mounted on the train wheel bridge 14 and on a bushing 15 forced into a sleeve 16 loosely mounted on the sleeve 16.
  • the pinion 32 of the minute Wheel 3i meshes with the hour Wheel 33.
  • the cannon pinion 31 carries the minute hand (not shown) and the hour wheel 33 the hour hand (not shown either).
  • FIGS. 3 to 5 differs from that of FIGS. 1 and 2 in that the sweep seconds hand is omitted and replaced by an ordinary seconds hand the axis E of which is spaced from the center C of the watch movement.
  • corresponding parts are indicated in FIGS. 3 to 5 with the same reference characters as in FIGS. 1 and 2.
  • the wheel 6 of the third wheel assembly meshes with a pinion 34 for an ordinary or eccentric seconds hand (not shown) carried by the arbor 35 of said pinion 34.
  • the wheel 36 of the seconds wheel assembly fixed to the arbor 35 meshes with the pinion 10 of the escape wheel 11 which cooperates with the pin pallet fork 12.
  • the arbor 35 is rotatably mounted on the pillar plate 13 and on the train wheel bridge 14 and is supported at its upper end by the cap piece 27 having the axis E.
  • the axis A of the large driving Wheel assembly 3, 4 is radially spaced from the axes B, C, D and E, so that the line ABED (FIG. 3) indicating the path of force transmission from the large driving wheel to the escap'ement, is again an angular forward line with no oppositely directed portions.
  • the plate 22 may be pro vided with only three caps pieces, viz: either pieces 24, 26 and 25 or pieces 24, 26 and 27 when the movement is equipped with a sweep seconds hand or with an ordinary seconds hand. 7
  • each of said three wheel. assemblies including a wheel and a pinion, each wheel and pinion being singly mounted on one of said arbors for joint rotation, j i
  • said bearings being arranged so as to form, when considered in a plan view, the points of a quadrangle, the individual axes of all of said four bearings thus being spaced from each other.
  • said first and second named two bearings being arranged so as to form, when considered in a plan view, the points of twoisosceles triangles having a common base, said first named two bearings being at the vertices of said triangles, said second named two bearings being at the ends of said common base.
  • said large driving wheel, third wheel, and seconds wheel assemblies forming a gear train transmitting motionfrom said main spring barrel'to said escape wheel assembly along an angular forward line free of any oppositely directed portions.
  • said support including a train wheel bridge, and a plate member fixed to said train wheel bridge, said bearings being mounted on said plate member.

Landscapes

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

Description

June 30, 1964 R. BEAUMANN 3,138,916
WATCH MOVEMENT Filed Feb. 26, 1962 2 Sheets-Sheet 1 a PVT 7 INVENTOR Raymond Beaumann June 30, 1964 R. BEAUMANN 3,138,916
WATCH MOVEMENT Filed Feb. 26, 1962 2 Sheets-Sheet 2 13% r /A v 2 INVENTOR Raymond Beaumann 3,138,916 WATCH MOVEMENT Raymond Beaumann, Les Bois, Switzerland, assignor to Derby S.A., Neuchatel, Switzerland Filed Feb. 26, 1962, Ser. No. 175,438 Claims priority, application Switzerland Mar. 2, 1961 I Claims. (CI. 58-59) The present invention concerns a watch movement for use with a sweep or conventional seconds hand, in which the axis of the so-called third wheel assembly and the axis of the escape wheel assembly is eachat equal distances from the axes of the two seconds wheel assemblies.
There are several prior constructionsof the above kind. In all these prior watch movements the teeth of the barrel are in mesh with a pinion whose axis lies in the center of the watch movement. Such pinion is either coaxially connected with the large driving wheel or an ordinary intermediate wheel. It is for this reason that the prior watch movements are complicated and require superposition of wheels and pinio-ns of the gear train so that the total height or thickness of the Watch movement is increased.
I The invention remedies these inconveniences. The watch movement according to the invention is characterised in that the teeth of the barrel mesh with a pinion of the large driving wheel mounted eccentrically with regard to the center of the movement, the large driving wheel operating the third wheel assembly, and the latter, according to the choice made, either a sweep or conventional seconds wheel assembly or seconds gear. The escape wheel assembly or escape gear is driven by the seconds gear, and the axis of the large driving wheel is offset from the axes of the other gears in order to avoid superposition of the gear wheels and to obtain reduction of the thickness of the movement. I
The accompanying drawing illustrates by way of examples two embodiments of the watch movement according to the invention.
FIG. 1 is a diagrammatic plan view of the first embodiment with sweep seconds hand.
FIG. 2 is a sectional view taken along the line IIII of FIG. 1.
FIG. 3 is a diagrammatic plan view of the second embodiment with ordinary seconds hand.
FIGS. 4 and 5 are sectional views taken along the lines IV-IV and V-V respectively of FIG. 3.
The main spring barrel 1 of the first embodiment (FIGS. 1 and 2) has teeth 2 engaging a large driving wheel pinion 3 whose axis A is radially spaced from the center C of the watch movement. The large driving wheel 4 meshes with the pinion 5 of the third wheel assembly. The third wheel 6 fixed to the arbor of the pinion 5 engages a sweep seconds pinion 7, the arbor 8 of which carries a sweep seconds hand (not shown). The sweep seconds wheel 9 fixed to the arbor 8 is in mesh with the escape pinion 10. The escape wheel 11 acts on the pin pallet fork 12. Therefore, the sweep seconds means isaso called direct seconds means. The
large driving wheel assembly 3, 4 and the third wheel assembly 5, 6 are both rotatably'mountd on the pillar United States Pate i 3,138,916 Patented June30, 1964 fixed to the pillar plate 13. The escape wheel assembly 10, 11 is rotatably mounted on the pillar plate 13 and on the train wheel bridge 14. The pin pallet fork 12 is rotatably supported on the pillar plate 13 and on a cock 17. 18 designates the balance and 19 (FIG. 1) the hairspring. The barrel ratchet wheel is designated 20 and the crown wheel 21.
A quadrangular plate 22 with rounded corners is dis posed in a recess of the train wheel bridge 14 to which it is fixed by means of a screw 23. The plate 22 carries four cap pieces or bearings 24 to 27, the first three cap pieces 24 to 26 serving to rotatably support the third wheel assembly 5, 6, the sweep seconds Wheel assembly 7, 9 and the escape Wheel assembly 10, 11. The cap piece 27 is not used in this embodiment and is only used to support the arbor of an ordinary or conventional seconds hand when the sweep seconds hand isomitted as is described with reference to FIGS. 3 to 5. The axis B of the third wheel assembly 5, 6 and the axis D of the escape wheel assembly 10, 11 is each at equal distances from the axes of the two seconds wheel assemblies, i.e. from thecentral axis C and the axis E of the ordinary seconds hand, respectively. Therefore, there is BC=BE and DC=DE (FIG. 1). EEC and ECD form two isosceles triangles having a common base EC. The axis A of the large driving wheel assembly 3, 4 is spaced from the axes B, C, D, E, so that the line ABCD of FIG. 1, indicating the path of force transmission from the large driving wheel to the escapement, is an angular forward line with no oppositely directed portions.
An intermediate wheel 20 mounted on the arbor of the large driving wheel assembly 3, 4 with friction produced by a wire spring 28 is in mesh with the minute wheel 30 which engages the cannon pinion 31 that is plate 13 and on the train wheel bridge 14. The sweep seconds arbor 8 is rotatably mounted on the train wheel bridge 14 and on a bushing 15 forced into a sleeve 16 loosely mounted on the sleeve 16. The pinion 32 of the minute Wheel 3i meshes with the hour Wheel 33. The cannon pinion 31 carries the minute hand (not shown) and the hour wheel 33 the hour hand (not shown either).
The embodiment illustrated in FIGS. 3 to 5 differs from that of FIGS. 1 and 2 in that the sweep seconds hand is omitted and replaced by an ordinary seconds hand the axis E of which is spaced from the center C of the watch movement. For an easy understanding of the drawing, corresponding parts are indicated in FIGS. 3 to 5 with the same reference characters as in FIGS. 1 and 2.
The wheel 6 of the third wheel assembly meshes with a pinion 34 for an ordinary or eccentric seconds hand (not shown) carried by the arbor 35 of said pinion 34. The wheel 36 of the seconds wheel assembly fixed to the arbor 35 meshes with the pinion 10 of the escape wheel 11 which cooperates with the pin pallet fork 12. The arbor 35 is rotatably mounted on the pillar plate 13 and on the train wheel bridge 14 and is supported at its upper end by the cap piece 27 having the axis E.
In this second embodiment, as in the first one, the axes B, C, D and E are disposed in such a way that BC=BE and DC=DE (FIG. 3). The axis A of the large driving Wheel assembly 3, 4 is radially spaced from the axes B, C, D and E, so that the line ABED (FIG. 3) indicating the path of force transmission from the large driving wheel to the escap'ement, is again an angular forward line with no oppositely directed portions. In this way any axial superposition of wheel assemblies of the gear train is avoided 'in both' embodiments and, therefore, the thickness of the watch movement is reduced.
In a modified embodiment, the plate 22 may be pro vided with only three caps pieces, viz: either pieces 24, 26 and 25 or pieces 24, 26 and 27 when the movement is equipped with a sweep seconds hand or with an ordinary seconds hand. 7
While I have shown and described two embodiments of my invention, I do not wish to restrict the scope of protection thereto, but reserve the right to make such modi- (e) an arbor for each of said three wheel assemblies,
(1) a support, and p (g) four bearings on said support, each bearing having an axis,
(1) each of said three wheel. assemblies including a wheel and a pinion, each wheel and pinion being singly mounted on one of said arbors for joint rotation, j i
(2) said spring barrel and said three wheel assemblies, being meshingly connected in the order indicated, i
(3) two of said bearings rotatably supporting the arbors for said third wheel assembly and said escape wheel assembly, each of the other two of said bearings-being adapted to rotatably support the arbor of a seconds wheel assembly,
(4) said bearings being arranged so as to form, when considered in a plan view, the points of a quadrangle, the individual axes of all of said four bearings thus being spaced from each other.
2. In the watch movement according to claim 1, said first and second named two bearingsbeing arranged so as to form, when considered in a plan view, the points of twoisosceles triangles having a common base, said first named two bearings being at the vertices of said triangles, said second named two bearings being at the ends of said common base. v
3. In the watch movement; according to claim 1, a center, a large driving wheel assembly meshingly interposed between saidv main spring barrel and said third wheel assembly, a fourth arbor for said large wheel assembly,
and'a fifth bearing to rotatably support said fourth arbor, said fifth bearing, when considered in said plan view, being outside said quadrangle. V
4. In the watch movement according, to claim 3, said large driving wheel, third wheel, and seconds wheel assemblies forming a gear train transmitting motionfrom said main spring barrel'to said escape wheel assembly along an angular forward line free of any oppositely directed portions. I Q
'5. In the Watch movement according to claim 1, said support including a train wheel bridge, and a plate member fixed to said train wheel bridge, said bearings being mounted on said plate member. i
References Cited in the file of this patent UNITED STATES PATENTS r 2,872,775 Maire- Feb. 10, .1959
FOREIGN PATENTS 260,122 Switzerland July 1,1949

Claims (1)

1. IN A WATCH MOVEMENT, (A) A MAIN SPRING BARREL, (B) A THIRD WHEEL ASSEMBLY, (C) AT LEAST A SINGLE SECONDS WHEEL ASSEMBLY, (D) AN ESCAPE WHEEL ASSEMBLY, (E) AN ARBOR FOR EACH OF SAID THREE WHEEL ASSEMBLIES, (F) A SUPPORT, AND (G) FOUR BEARINGS ON SAID SUPPORT, EACH BEARING HAVING AN AXIS, (1) EACH OF SAID THREE WHEEL ASSEMBLIES INCLUDING A WHEEL AND A PINION, EACH WHEEL AND PINION BEING SINGLY MOUNTED ON ONE OF SAID ARBORS FOR JOINT ROTATION, (2) SAID MAIN SPRING BARREL AND SAID THREE WHEEL ASSEMBLIES BEING MESHINGLY CONNECTED IN THE ORDER INDICATED,
US175438A 1961-03-02 1962-02-26 Watch movement Expired - Lifetime US3138916A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH3138916X 1961-03-02

Publications (1)

Publication Number Publication Date
US3138916A true US3138916A (en) 1964-06-30

Family

ID=4574370

Family Applications (1)

Application Number Title Priority Date Filing Date
US175438A Expired - Lifetime US3138916A (en) 1961-03-02 1962-02-26 Watch movement

Country Status (1)

Country Link
US (1) US3138916A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3208210A (en) * 1963-10-07 1965-09-28 Kienzle Uhrenfabriken Ag Wrist watch movement having central and eccentric seconds hand arbors
US3779002A (en) * 1972-01-27 1973-12-18 Schild Sa A Watch movement with off-center center wheel and pinion
US4074517A (en) * 1975-07-14 1978-02-21 Kabushiki Kaisha Daini Seikosha Gear train for a wrist watch
US20120092969A1 (en) * 2009-03-25 2012-04-19 Hublot S.A., Geneve Clock movement

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH260122A (en) * 1947-05-08 1949-02-28 Bandi Fred Central seconds watch movement.
US2872775A (en) * 1954-06-17 1959-02-10 Tavannes Watch Co Sa Watch movement

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH260122A (en) * 1947-05-08 1949-02-28 Bandi Fred Central seconds watch movement.
US2872775A (en) * 1954-06-17 1959-02-10 Tavannes Watch Co Sa Watch movement

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3208210A (en) * 1963-10-07 1965-09-28 Kienzle Uhrenfabriken Ag Wrist watch movement having central and eccentric seconds hand arbors
US3779002A (en) * 1972-01-27 1973-12-18 Schild Sa A Watch movement with off-center center wheel and pinion
US4074517A (en) * 1975-07-14 1978-02-21 Kabushiki Kaisha Daini Seikosha Gear train for a wrist watch
US20120092969A1 (en) * 2009-03-25 2012-04-19 Hublot S.A., Geneve Clock movement
US8894276B2 (en) * 2009-03-25 2014-11-25 Hublot Sa. Geneve Clock movement

Similar Documents

Publication Publication Date Title
US3138916A (en) Watch movement
DE870523C (en) Device for the automatic winding of clocks
US3844107A (en) Timepiece
US3412550A (en) Self-winding watch movement
US2872775A (en) Watch movement
US2749779A (en) Reversible input unidirectional output transmission gearing
US3064415A (en) Arrangement for the winding and timesetting of a watch
US3857235A (en) Electrical clock movement
US3747329A (en) Sweep second watch movement
US2766578A (en) Timepiece movement with a jumping second-beating hand
US2969636A (en) Chronometer
GB1099897A (en) Seconds hand drive train arrangement
US3901019A (en) Watch movement
US2556110A (en) Clockwork mechanism
US3324646A (en) Pivoting device of a watch movement train element
US3029592A (en) Motion-work for time-pieces
US3296790A (en) Hands setting mechanism for an electric timepiece
GB1442708A (en) Timepiece mechanism
FR1203676A (en) Backlash-free spindle drive mechanism
US2921476A (en) Timepiece movement with a jumping second-beating hand
US3716984A (en) Watch structure having plastic and metal components
US2728187A (en) Watch with indirectly driven minute hand
US3779002A (en) Watch movement with off-center center wheel and pinion
US2903846A (en) Watch movement with a central seconds hand
US1799454A (en) Self-winding timepiece