Timepiece comprising a minute repeater mechanism
For a timepiece movement, a striking train mechanism having: at least one resonant element ( 32 ) which can emit at least two sounds of different frequencies, at least two pallets ( 36 ), and at least two hammers ( 34 ) which are designed to be driven by the pallets ( 36 ) in order to strike the resonant element ( 32 ).
1. A striking part adapted to be rotatingly mounted on a minute repeater mechanism, wherein it comprises a single rack which has successively, along one of its edges, a toothed hour section, a tooth-free space and a toothed minute section, said toothed hour section being intended to actuate first means for emitting a sound and said toothed minute section being intended to actuate second means for emitting a second different sound.
2. The striking part of claim 1 , wherein it supports a trigger, comprising a first and second arm each provided with a sensing arm to take an information relating to the current time.
3. The striking part according to claim 1 , wherein a quarter part comprising a toothed quarter section is mounted rotatably relative to said striking part such that the toothed quarter section is able to appear exclusively in said tooth-free space.
4. The striking part of claim 1 , wherein said toothed hour section comprises twelve teeth and said tooth minute section comprises fourteen teeth.
5. The striking part of claim 1 , wherein the toothed minute and hour sections are located in different planes relative to the thickness of said minute repeater mechanism.
6. The striking part of claim 5 , wherein it supports a trigger, comprising a first and second arm each provided with a sensing arm to take an information relating to the current time.
7. The striking part according to claim 5 , wherein a quarter part comprising a toothed quarter section is mounted rotatably relative to said striking part such that the toothed quarter section is able to appear exclusively in said tooth-free space.
8. A timepiece comprising a minute repeater mechanism equipped with:
a power source powering this mechanism,
a control member to actuate this mechanism,
a counting element to take information on the current time, comprising:
an hour snail, an hour sensing arm,
a quarter snail, a quarter sensing arm,
a minute snail, a minute sensing arm,
a toothed hour section, one for quarters and one for minutes mounted rotatably and the movement of which is determined by said counting organ, and
means for emitting a sound, comprising:
two pallets able to be actuated by one and/or the other of the toothed sections,
two hammers moved by pallets, and
two gongs whereon strike said hammers to emit a sound,
wherein said toothed hour and minute sections are located on a striking part comprising a rack which has successively, along one of its edges, a toothed hour section, a tooth-free space and a toothed minute section.
9. The timepiece of claim 8 , wherein said pallets are disposed coaxially and each comprising:
a beak which cooperates with toothed sections mounted mobile in said movement in order to cause said pallets to rotate,
a positioning surface whereon bears an elastic element to keep the pallets in their resting position, and
a pallet stone which acts directly on a pin comprised by the hammers,
and wherein said toothed quarter section encompasses, in its thickness, the beaks of the two pallets.
10. The timepiece of claim 8 , wherein the toothed hour and minute sections are positioned, in the direction of the thickness of the mechanism, respectively in the plane of one and the other of the pallets.
11. The timepiece of claim 10 , wherein said pallets are disposed coaxially and each comprising:
a beak which cooperates with toothed sections mounted mobile in said movement in order to cause said pallets to rotate,
a positioning surface whereon bears an elastic element to keep the pallets in their resting position, and
a pallet stone which acts directly on a pin comprised by the hammers,
and wherein said toothed quarter section encompasses, in its thickness, the beaks of the two pallets.
12. The timepiece of claim 10 , wherein the power source is a barrel the power of which is transmitted to said mechanism through a driving wheel, wherein said trigger and said striking part rotate at the center of said wheel, at least one of said first and second arms of the trigger being oriented concentrically to the driving wheel, and wherein the trigger is coupled with play to the striking part, said play being able to create a relative movement of said trigger relative to said striking part which, through a lever linked with said striking part and moved by said trigger, engages or disengages the striking part with said driving wheel.
13. The timepiece of claim 12 , wherein said pallets are disposed coaxially and each comprising:
a beak which cooperates with toothed sections mounted mobile in said movement in order to cause said pallets to rotate,
a positioning surface whereon bears an elastic element to keep the pallets in their resting position, and
a pallet stone which acts directly on a pin comprised by the hammers,
and wherein said toothed quarter section encompasses, in its thickness, the beaks of the two pallets.
14. The timepiece of claim 8 , wherein the power source is a barrel the power of which is transmitted to said mechanism through a driving wheel, wherein said trigger and said striking part rotate at the center of said wheel, at least one of said first and second arms of the trigger being oriented concentrically to the driving wheel, and wherein the trigger is coupled with play to the striking part, said play being able to create a relative movement of said trigger relative to said striking part which, through a lever linked with said striking part and moved by said trigger, engages or disengages the striking part with said driving wheel.
15. The timepiece of claim 14 , wherein said pallets are disposed coaxially and each comprising:
a beak which cooperates with toothed sections mounted mobile in said movement in order to cause said pallets to rotate,
a positioning surface whereon bears an elastic element to keep the pallets in their resting position, and
a pallet stone which acts directly on a pin comprised by the hammers,
and wherein said toothed quarter section encompasses, in its thickness, the beaks of the two pallets.
16. The timepiece of claim 8 , wherein said striking part comprises a recess, and wherein the quarter part is provided with a shoulder and a pressure surface with which cooperates a first positioning spring, exerting a force aiming to bring said shoulder to abut on said recess.
17. The timepiece of claim 16 , wherein said pallets are disposed coaxially and each comprising:
a beak which cooperates with toothed sections mounted mobile in said movement in order to cause said pallets to rotate,
a positioning surface whereon bears an elastic element to keep the pallets in their resting position, and
a pallet stone which acts directly on a pin comprised by the hammers,
and wherein said toothed quarter section encompasses, in its thickness, the beaks of the two pallets.
18. The timepiece according to claim 16 , wherein a second spring exerts a force on the striking part aiming to drive it in rotation and wherein said positioning spring and said second spring bring said quarter part against a banking element which keeps said mechanism in its resting position.
19. The timepiece of claim 18 , wherein said pallets are disposed coaxially and each comprising:
a beak which cooperates with toothed sections mounted mobile in said movement in order to cause said pallets to rotate,
a positioning surface whereon bears an elastic element to keep the pallets in their resting position, and
a pallet stone which acts directly on a pin comprised by the hammers,
and wherein said toothed quarter section encompasses, in its thickness, the beaks of the two pallets.
20. A Striking mechanism for timepiece movement comprising:
at least one resonant element which can emit at least two sounds of different frequencies,
at least two pallets disposed coaxially and each comprising:
a beak which cooperates with toothed sections mounted mobile in said movement in order to cause said pallets to rotate,
a positioning surface whereon bears an elastic element to keep the pallets in their resting position, and
a pallet stone which acts directly on a pin comprised by a hammer
at least two hammers each comprising a pin whereon directly acts said pallet stones to make them strike said resonant element,
wherein the pallet stone of a first pallet is positioned so as to act on the pin of a first hammer during an ascending phase of its rotational movement in a first direction, and wherein the pallet stone of a second pallet is positioned so as to act on the pin of a second hammer during a descendant phase of its rotational movement in said first direction.