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
  • G04B17/00—Mechanisms for stabilising frequency
  • G04B17/20—Compensation of mechanisms for stabilising frequency
  • G04B17/28—Compensation of mechanisms for stabilising frequency for the effect of imbalance of the weights, e.g. tourbillon
  • G04B17/285—Tourbillons or carrousels
• • 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
  • G04B27/00—Mechanical devices for setting the time indicating means
  • G04B27/004—Mechanical devices for setting the time indicating means having several simultaneous functions, e.g. stopping or starting the clockwork or the hands

Definitions

• the invention relates to a tourbillon for a watch with an adjusting device for adjusting the hands of the watch, with a circular balance which can be pivoted about a pivot axis and with an escapement consisting of an anchor and escape wheel, the escapement and escapement on a base plate are arranged and a balance shaft of the balance is rotatably supported at one end on the base plate and at the other end on a cage enclosing the balance in a basket-like manner, which has outside the radially circumferential periphery of the balance several pillars fixed at a distance from one another on the base plate and with the base plate forms a bogie which is fixedly connected to the secondary drive of the clock and can be driven rotatably with the latter about an axis of rotation coaxial with the pivot axis.
• Tourbillons of the type mentioned are known.
• the object of the invention is therefore to provide a tourbillon of the type mentioned, which allows the pivoting movement of the balance wheel to be blocked in a simple manner when an actuating device of the watch is actuated.
• a stop device can be actuated by the actuating device and the pivoting movement of the balance wheel can be blocked by the stop device, the stop device having an approximately V-shaped or U-shaped double-arm spring that radially out of a normal position outside the circumferential movement path of the pillars can be moved into a blocking position in which it can be resiliently applied to the radially circumferential contour of the balance with contact areas on the free end regions of its two spring arms directed in and against the direction of rotation of the contour of the balance.
• This design ensures, on the one hand, that the stop device in the normal position is outside the circumferential movement path the pillar is in place so that it does not collide with the surrounding cage.
• the double arm spring that, when a spring arm is placed on a pillar of the cage, the other spring arm can continue to arrest the balance wheel in a direct manner.
• the end areas of the spring arms acting on the balance may have a smaller distance from one another in the radial direction of the balance than the smallest distance between the pillars.
• connection point of the two spring arms is outside the circumferential movement path of the pillars when the double arm spring is in the blocking position, the two spring arms can grip around a pillar in the blocking position and be in contact with the balance on both sides of the pillar.
• the free ends of the spring arms extend from their abutment areas on the balance roughly like a ramp away from the balance, threading these free ends between the balance and the pillars is avoided.
• the free end of the rear spring arm in the direction of rotation of the bogie in the blocking position of the double arm spring extends radially outside the circumferential path of movement of the pillars, so that even if the free end of this spring arm is in the blocking position close to a pillar , when the watch is restarted, threading this end of the spring arm between the balance and the pillar is prevented.
• a hooking of the free ends of the spring arms with the balance is further avoided in that the distance between the connection point and the contact areas of the two spring arms is unequal.
• the distance between the connection point and contact area of the front spring arm in the direction of rotation of the bogie is preferably greater than the distance between the connection point and contact area of the spring arm rear in the direction of rotation of the bogie.
• the double-arm spring is preferably freely pivoted in the area of its connection point about a hinge axis parallel to the axis of rotation of the bogie on a pivot lever, the Swivel lever about a parallel to the axis of rotation Axis the double arm spring between its normal position and its blocking position is pivotally actuated.
• the swivel lever can always achieve the same swivel angle, approximately radially in its area between the axis and the joint axis be a spring-loaded contact lever.
• the pivoting lever is preferably a two-armed lever, one arm of which is a contact lever which extends between the axis and the articulated axis and the other arm of which is an actuating arm which can be swiveled and extends away from the axis.
• the actuating arm is designed to be resilient in the pivoting direction of the pivoting lever from the normal position into the blocking position, the possibility of compensating for the different distances between the articulation axis and the pivoting axis of the balance is further increased.
• the actuating arm in a simple design, is approximately U-shaped formed and extends with its two legs of the U approximately away from the area of the axis and can be pivoted by an actuating element which engages in the opening of the U, the front leg of the U being designed to be resilient in the pivoting direction in the pivoting direction from the normal position into the blocking position ,
• the pivoting lever can be driven to be pivotable by an adjusting shaft of the adjusting device which is axially displaceable between a normal position and an adjusting position.
• the balance is locked simultaneously with the movement of the adjusting shaft into its adjusting position for adjusting the pointers
• the pivoting lever is preferably driven by the actuating shaft via a double-armed pivoting element which can be pivoted about a pivoting axis.
• the setting shaft can be rotatably actuated to set a minute hand.
• control shaft can serve as an elevator shaft in its normal position.
• An embodiment of the invention is shown in the drawing and will be described in more detail below. Show it
• Figure 1 is a perspective view of a tourbillon
• FIG. 2 shows a top view of the tourbillon according to FIG. 1
• FIG. 3 shows a rear view of the tourbillon according to FIG. 1
• Figure 4 is a plan view of the balance, swivel lever and double spring arm of the tourbillon according to Figure 1 in a first blocking position
• FIG. 5 shows a plan view of the balance, swivel lever and double arm spring of the tourbillon according to FIG. 2 in a second blocking position
• FIG. 6 shows a plan view of the balance, swivel lever and double-arm spring of the tourbillon according to FIG. 1 in a third blocking position
• Figure 7 is a plan view of the balance, swivel lever and double arm spring of the tourbillon according to Figure 1 in a fourth Blockier ⁇
• the tourbillon shown in the figures has a base plate 1 with three radially outwardly directed arms 2, on the free ends of which there are vertical arrows 3 which are connected to one another at their upper end by a bridge 4 to form a basket-like cage 5.
• a circular balance 6 is arranged in the center of the cage 5 on a balance shaft, which is supported at one end on the base plate 1 and at the other end on the bridge 4, so that the balance 6 can be pivoted about a pivot axis 7.
• the balance shaft is enclosed by a balance spiral 10.
• the balance wheel has a balance ring 11 which is connected to the hub 13 via the balance leg 12, which is in turn arranged on the balance shaft.
• the balance ring 11 has balance screws 14 which protrude radially outward from the balance ring 11 with their screw heads.
• the motherboard 1 there is also an escapement consisting of an armature 8 and an armature wheel 9, the armature 8 interacting with the balance wheel.
• the pillars 3 are arranged radially outside the radially circumferential contour 15 of the balance ring 11 and balance screws 14, so that the cage 5 encloses the balance 6 like a basket.
• the bogie formed from the base plate 1 and the cage can be driven to rotate about an axis of rotation 7 coaxial with the pivot axis of the balance 6 at one revolution per minute.
• a pivot lever 16 is pivotally mounted about an axis 17 parallel to the axis of rotation 7.
• the pivot lever 16 is a two-armed lever, one of which lever arm rests approximately radially to the balance 6 and the other lever 18
• Lever arm is an actuating arm 19.
• the actuating arm 19 is approximately U-shaped, the two legs 20 and 21 of the U extending approximately from the region of the axis 17.
• a lever pin 23 engages in the opening 22 of the U and is arranged at the end of the one lever arm 24 of a two-armed swivel element 25.
• a manually actuated actuating shaft 28 of an actuating device acts, which moves from a normal position into an actuating position. is slidable and by the displacement of the pivot member 25 and thus the pivot lever 16 is pivotable.
• the adjusting shaft 28 serves as the winding shaft of the watch.
• the lever pin 23 of the pivot element 25 pivoted by the actuating shaft 28 acts on the leg 20 of the actuating arm 19 of the actuating arm 19, which is designed to be resilient in its pivoting direction the free end of the pivot lever 18 of the pivot lever 16 pivots toward the restlessness 6.
• a double-arm spring 31 is freely pivoted about an articulation axis 30 parallel to the axis of rotation 7, which is pivoted from its position in the normal position outside the circumferential movement path 32 of the pillar by the contact lever 18 into its blocking position. In the blocking position shown, at least one of the two spring arms 33 and 34 with its contact region 35 and 36 of its free end regions comes to bear against the radially circumferential contour of the balance 6 and blocks its pivoting movement.
• the spring arm 33 of the V-shaped double arm spring 31 extends in the opposite direction and the spring arm 34 in the direction of rotation 37 of the cage 5. Binding point of the two spring arms 33 and 34, the double arm spring 31 is articulated on the application lever 18.
• the distance between the hinge axis 30 and the contact area 35 of the spring arm 34 is greater than the distance between the hinge axis 30 and the contact point 36 of the spring arm 33.
• the free ends 38 and 39 of the spring arms 33 and 34 extend from their contact areas 35 and 36 in a ramp-like manner away from the balance 6, the free end 38 of the rear spring arm 33 in the direction of rotation 37 extending radially outside the circumferential movement path 32 in the blocking position the pillar 3 extends.
• the free ends 38 and 39 of the spring arms 33 and 34 are at a distance from one another which is smaller than the distance between two pillars 3.
• FIGS. 4 to 7 show the various possibilities of the spring arm 31 in its blocking position.
• FIG. 4 shows the double arm spring 31, the two spring arms 33 and 34 of which are in contact with the balance 6 between two pillars 3.
• the double arm spring 31 overlaps a pillar 3 and rests on each side of the pillar 3 with a spring arm 33 and 34 on the balance 6.

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• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Pivots And Pivotal Connections (AREA)
• Electromechanical Clocks (AREA)
• Orthopedics, Nursing, And Contraception (AREA)
• Adornments (AREA)
• Toys (AREA)
• Apparatus For Radiation Diagnosis (AREA)
• Medicines Containing Material From Animals Or Micro-Organisms (AREA)

Applications Claiming Priority (3)

Publications (2)

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Family Applications (1)

Country Status (6)

Cited By (3)

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• 2001
  • 2001-12-07 DE DE10160287A patent/DE10160287A1/de not_active Ceased
• 2002
  • 2002-11-22 EP EP02804189A patent/EP1451647B1/fr not_active Expired - Lifetime
  • 2002-11-22 AT AT02804189T patent/ATE382883T1/de not_active IP Right Cessation
  • 2002-11-22 US US10/467,422 patent/US6846104B2/en not_active Expired - Lifetime
  • 2002-11-22 DE DE50211483T patent/DE50211483D1/de not_active Expired - Lifetime
  • 2002-11-22 JP JP2003549998A patent/JP4126015B2/ja not_active Expired - Lifetime
  • 2002-11-22 WO PCT/EP2002/013107 patent/WO2003048871A2/fr active IP Right Grant

Non-Patent Citations (1)

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