CH709329A2 - Exhaust, room and clockwork timepiece. - Google Patents

Abstract

The invention relates to an escapement, a timepiece movement, and a timepiece that ensure stable operation and energy transfer and have excellent energy transfer efficiency. An escapement includes an anchor (40) having a first impulse pallet (46), a second impulse pallet (48), a first stop pallet (47), and a second stop pallet (49) , and which is pivotally movable about an anchor rod (43), a first exhaust movable (10) having a first escape wheel (14) with which the first impulse pallet (46) ) can come into contact while transmitting its energy to that one, and whose first stopping pallet (47) can engage with or separate from, and a second movable stub (20) which has a second escape wheel (24) with which the second impulse pallet (48) can come into contact, and the second stopping pallet (49) can engage with or separate from, and which meshes with the first movable exhaust (10).

Description

BACKGROUND OF THE INVENTION

[0001] 1. Field of the invention

The present invention relates to an escapement, a movement of a timepiece, and a timepiece.

[0003] 2. Description of the Prior Art

[0004] A mechanical timepiece comprises an escapement for controlling the rotation of a movement barrel, a center wheel, a third wheel, and a second wheel which constitute a wheel train. In general, an escapement mainly includes an escapement wheel, a double roller disposed in a spiral balance pivotally movable about a balance shaft, and an anchor movable pivotally about a rod of anchor.

The double roll includes an impulse pin which comes into contact with the anchor, and which is pivotally displaced with the balance spring by the energy accumulated in a hairspring. The anchor includes an entry pallet and an exit pallet that can engage with or separate from the teeth of the escape mobile. The energy of the hairspring is transferred through the impulse pin so that the anchor moves pivotally around the anchor rod.

In general, the sprung balance used to regulate the speed of the exhaust needs to oscillate at a predetermined cycle (oscillation cycle). Then, a sprung balance post is adapted to be fine in order to maintain a good precision of the sprung balance by eliminating the attenuation of the balance cycle of the sprung balance which is caused by the increased moment of inertia or the friction the balance-spring.

If the impulse resulting from a collision is applied to the end post of the sprung balance, the stud of the sprung balance can be deformed or broken, thus resulting in a degraded accuracy of the sprung balance. In the worst case, there is a possibility that the balance-spring can stop working.

In order to prevent the pin of the sprung balance from being deformed or broken due to the applied pulse, the balance spring bearing uses a bearing resistant to vibration. When the impulse is applied to the sprung balance, the vibration-resistant bearing displaces the sprung balance post in the axial direction and the radial direction to absorb or attenuate the impulse applied to the sprung balance.

In addition, different types of exhaust have been proposed to improve the efficiency and durability of the exhaust.

For example, the patent application JP-A-2012-168172 (first patent document) discloses a timepiece escapement which comprises a first mobile and a second movable mobile meshing one with the other, and a first impulse pallet and a second impulse pallet to which pulses are alternately applied from the first exhaust movable and the second movable, and wherein the first impulse pallet and the second pulse pallet are arranged in the impulse pin of the sprung balance. In the exhaust disclosed in the first patent document, the energy induced from the spiral of the movement barrel is transmitted directly from the first escapement mobile and the second mobile to the first pulse pallet and the second pulse pallet. the spiral balance (this is the escapement called the direct impulse type).

In addition, the patent application JP-A-2004-53 592 (second patent document) discloses a timepiece escapement which comprises the first mobile and the second movable mobile meshing one with the other, and the anchor that can engage with or separate from the first escapement mobile, the second mobile, and the double roll. In the escapement disclosed in the second patent document, the energy induced from the spiral of the movement barrel is transmitted from the first mobile escapement and the second mobile to the double roller of the balance-spring through the anchor ( this is the escapement called the indirect impulse type).

However, when the pulse is applied to the sprung balance from the outside, if the sprung balance moves in the axial direction or the radial direction due to the action of the bearing resistant to vibration, there is has a possibility that stable operation of the exhaust can not be ensured or that the energy can not be transmitted.

In addition, the direct impulse type exhaust disclosed in the first patent document also used the bearing resistant to vibration. When a strong pulse is applied to the stud of the sprung balance, the sprung balance is moved involuntarily. Therefore, in the worst case, there is a possibility that the first and second movable exhaust movable may separate from the first and second pulse pallet pulse. Therefore, there is a possibility that stable operation of the exhaust can not be ensured or that the energy can not be transmitted.

In addition, in the escapement of indirect pulse type disclosed in the second patent document, the anchor engages with or separates from the first mobile exhaust, the second mobile exhaust, and the double roll the balance-spring. As a result, there are several limitations on layout positions, and the anchor tends to be miniaturized. For this reason, when the anchor separates from the first mobile escapement, the second mobile escapement, and the double roller balance spring, a powerful torque is required. Therefore, there is a possibility of degradation of energy transfer efficiency.

SUMMARY OF THE INVENTION

Therefore, the invention is made for the circumstances described above, and its object is to provide an escapement, a timepiece movement, and a timepiece that ensure operation and transfer of stable energy, and which have an excellent efficiency of energy transfer.

In order to achieve the object described above, an escapement according to the invention comprises an anchor which has a first pulse pallet, a second pulse pallet, a first stop pallet, and a second pallet and movable pivotally about an anchor rod, a first exhaust movable having a first escape wheel with which the first impulse pallet can come into contact while transmitting its energy, and with which the first stopping pallet can engage or separate from, and a second movable exhaust which has a second escape wheel with which the second impulse pallet can come into contact, and with which the second stopping pallet can engage with or separate from, and which meshes with the first movable exhaust.

According to the invention, the anchor comprising the first impulse pallet and the second impulse pallet is made available, the first escapement wheel having the first escape wheel with which the first pallet impulse can come into contact, and the second escapement mobile having the second escape wheel with which the second impulse pallet can come into contact. As a result, it is possible to assemble an escapement called indirect impulse type escapement which transfers the energy to a balance-spring through the anchor. Therefore, it is possible to ensure stable operation and energy transfer.

In addition, the anchor has the first pulse pallet, the second pulse pallet, the first stop pallet, and the second stop pallet. Accordingly, it is possible to desirably adjust the engagement value of the respective vanes with the first escape wheel and the second escape wheel by suitably adjusting the size or shape of the respective vanes. In addition, in comparison with the technology disclosed in the second patent document, the anchor can freely use the improved design. Therefore, by appropriately adjusting the size of the anchor, a desired magnitude can be set for the generated torque when the first stopping pallet and the second stopping pallet of the anchor separate from the first stub wheel. exhaust and the second escape wheel. Therefore, it is possible to assemble the exhaust which has excellent energy transfer efficiency.

In addition, the first escape wheel of the first escape mobile is formed in two layers including a first escape wheel for the pulse with which the first pulse pallet can come into contact, and a first escape wheel for stopping with which the first stopping pallet can engage with or separate from. The second escape wheel of the second escape mobile is formed in two layers including a second escape wheel for the pulse with which the second pulse pallet can come into contact, and a second escape wheel for the second escape wheel. stop with which the second stop pallet can engage with or separate from.

According to the invention, the first escape wheel is formed in two layers including the first escape wheel for the pulse with which the first pulse pallet can come into contact, and the first escape wheel. for the stop with which the first stop pallet can engage with or separate from. Accordingly, it is possible to independently and desirably set the engagement value between the first pulse pallet and the first escape wheel for the pulse and the engagement value between the first pallet stop and the first escape wheel for stopping. In addition, the second escape wheel is formed in two layers including the second escape wheel for the pulse with which the second pulse pallet can come into contact, and the second escape wheel for stopping with which the second stopping pallet can engage with or separate from. Accordingly, it is possible to independently and desirably set the engagement value between the second pulse pallet and the second escape wheel for the pulse and the engagement value between the second pallet stop and the second escape wheel for stopping. As a result, stable operation and energy transfer are ensured more, and it is possible to assemble the exhaust which has excellent energy transfer efficiency.

In addition, a timepiece movement according to the invention includes the exhaust described above.

In addition, a timepiece according to the invention includes the timepiece movement described above.

According to the invention, the escapement is provided which ensures stable operation and energy transfer, and which has excellent energy transfer efficiency. Therefore, it is possible to provide the timepiece movement and the timepiece that show a high performance.

According to the invention, the escapement is made available including the anchor which has the first impulse pallet and the second impulse pallet, the first exhaust impeller which the first exhaust impeller with which the first impulse pallet can come into contact, and the second exhaust movable which has the second escape wheel with which the second impulse pallet can come into contact. As a result, it is possible to assemble the escapement called indirect impulse type escapement which transfers the energy to the balance spring by means of the anchor. Therefore, it is possible to ensure stable operation and energy transfer.

In addition, the anchor has the first pulse pallet, the second pulse pallet, the first stop pallet, and the second stop pallet. Accordingly, it is possible to desirably adjust the engagement value of the respective vanes with the first escape wheel and the second escape wheel by appropriately adjusting the size or shape of respective vanes. In addition, in comparison with the technology disclosed in the second patent document, the anchor can freely use the improved design. Consequently, by appropriately adjusting the size of the anchor, the desired magnitude can be adjusted for the torque generated when the first stopping pallet and the second stopping pallet of the anchor separate from the first wheel of the anchor. exhaust and the second escape wheel. Therefore, it is possible to assemble the exhaust which has excellent energy transfer efficiency.

BRIEF DESCRIPTION OF THE DRAWINGS

[0026] <tb> Fig. 1 <SEP> is a plan view when a movement of a timepiece according to one embodiment is viewed from the front side. <tb> Fig. 2 <SEP> is a perspective view of an exhaust according to the embodiment. <tb> Fig. 3 <SEP> is a plan view of the exhaust according to the embodiment. <tb> Fig. 4 <SEP> is a view to illustrate the operation of the exhaust. <tb> Fig. 5 <SEP> is a view to illustrate the operation of the exhaust. <tb> Fig. 6 <SEP> is a view to illustrate the operation of the exhaust. <tb> Fig. 7 <SEP> is a view to illustrate the operation of the exhaust. <tb> Fig. 8 <SEP> is a plan view of an exhaust according to an exemplary modification of the embodiment.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0027] Hereinafter, an embodiment of the invention will be described with reference to the drawings.

In the following description, a mechanical timepiece according to the embodiment will be described, and then an exhaust according to the embodiment will be described in detail.

In general, the machine body comprising a drive unit of a timepiece is called a "movement". The finished product condition, by attaching a dial and hands to movement and placing the movement in a timepiece case is called a "complete assembly" of the timepiece. Between two sides of a main plate which constitutes the substrate of the timepiece, the side having the glass of the timepiece case, that is to say, the side having the dial the "side back of the movement. Between the two sides of the main board is called the side having the caseback at the back of the watch case, that is, the opposite side of the dial the "front side" of the watch. movement.

FIG. 1 is a plan view when a movement 101 of a timepiece 100 (corresponding to a "timepiece movement" in the claims) is seen from the front side. In fig. 1, a balance wheel 5a of a sprung balance 5 is illustrated by a double dotted line.

As illustrated in FIG. 1, the timepiece 100 includes the movement 101. The movement 101 has a main plate 102 constituting the substrate. A winding stem guide hole 103 is formed in the main plate 102. A winding stem 104 is rotatably inserted into the winding stem guide hole 103. On the front side (front side from the surface of the 1) of the movement 101, a second mobile 106, a third mobile 107, a center mobile 108, and a movement cylinder 110 which constitute a train 105 are arranged, and an exhaust 1 which controls the rotation of the gear train 105 is also arranged.

The movement cylinder 110 has inside a motor spring 111 serving as a power source of the timepiece 100. The motor spring 111 is armed by turning the winding stem 104. Then, a configuration is adopted so that the movement cylinder 110 is rotated by a rotational force generated when the mainspring 111 is disarmed, and then the center mobile 108 is rotated.

The center mobile 108 meshes with the third mobile 107. If the center mobile 108 is rotated, the third mobile 107 is formed to be rotated.

The third mobile 107 meshes with the second mobile 106. If the third mobile 107 is rotated, the second mobile 106 is formed to be rotated.

The second mobile 106 is rotated, thereby encouraging the exhaust 1 and a speed controller 2 to be driven. Exhaust 1 will be described later in detail.

The cruise control 2 is a mechanism for regulating the speed of the exhaust 1, and comprises the spring balance 5 and a spiral spring (not shown).

The sprung balance 5 has a balance shaft 31 serving as an axis of rotation, a balance wheel 5a which is inserted externally and which is fixed to the balance shaft 31, a double roller 30 (will be described later), and a hairspring (not shown).

Then, the exhaust 1 and the speed regulator 2 are driven, thereby controlling the second mobile 106 so that it rotates once per minute, and controlling the center mobile 108 so that it turns once per hour.

[Exhaust]

FIG. 2 is a perspective view of the exhaust 1 according to the embodiment. In fig. 2, the upper side of the sheet surface represents the front side of the movement 101, and the lower side of the sheet surface represents the rear side of the movement 101.

FIG. 3 is a plan view of the exhaust 1 according to the embodiment. In fig. 3, a front side of the sheet surface represents the front side of the movement 101, and the rear side of the sheet surface represents the rear side of the movement 101. FIG. 3 illustrates only a front tapered face 39 and a pulse peg 36 in the double roll 30 (which will be described later).

Here, FIGS. 2 and 3 illustrate the state where the anchor 40 (to be described later) is located in an intermediate section in the pivoting movement interval.

As illustrated in FIGS. 2 and 3, the escapement 1 according to the present embodiment mainly includes the double roll 30, the anchor 40, the first escape wheel 10, and the second escape wheel 20. Hereinafter, each constituent component the exhaust 1 will be described in detail.

As illustrated in FIG. 2, the double roll 30 is disposed in the sprung balance 5 (see Fig. 1) which moves pivotally about the balance shaft 31. The double roll 30 is a constituent component of the speed regulator 2 (See Fig. 1), and is a constituent component of the exhaust 1. The double roll 30 is a member formed in a circular shape in a plan view, and is inserted externally and fixed to the shaft For example, the double roll 30 is a member formed of a metallic material or a material having a crystalline orientation such as monocrystalline silicon, and is formed by performing an electroplating process or the process LIGA, DRIE and Ml M using an optical method such as photolithography technology. The method of manufacturing the double roll 30 is not limited to the methods described above. For example, the double roll 30 may be formed by mechanically processing a metal material.

The double roll 30 has a rear conical face 32 and the front tapered face 39 formed on the back side (lower side of the sheet surface in Fig. 2) of the movement 101 seen from the rear taper face 32 .

The rear conical face 32 is a disk-shaped member, and having a through hole 33 penetrating in an axial direction of the rear conical face 32. For example, the pulse pin 36 is fitted and fixed in the hole opening 33.

For example, the pulse peg 36 is formed of rubies, has a flat surface on the outer radial side when viewed in the axial direction, and is formed in a semicircular shape having an arcuate surface on it. an inner radial side. The impulse pin 36 is disposed along the axial direction, and protrudes from the rear conical face 32 towards the rearward side of the movement 101. The impulse pin 36 may contact the anchor 40 (which will be described later).

The front conical face 39 is a disc-shaped member, and is constituted to have a diameter which is smaller than that of the rear conical face 32. A crescent-shaped curved portion 39a which is set back from radially inwardly is formed at a position corresponding to the impulse pin 36 on the outer peripheral surface of the front conical face 39. When the anchor 40 (which will be described later) and the impulse pin 36 engage with each other, the crescent-shaped portion 39a functions as an exhaust portion which prevents a dart 44b of the anchor 40 from contacting the tapered face before 39. In addition, the stinger 44b of the anchor 40 can slidably contact a partial area on both sides through the crescent-shaped portion 39a in the circumferential direction, in the outer peripheral surface of the front conical face 39.

The anchor 40 includes an elongate anchor body 41 extending along the radial direction of the double roll 30, a pallet holding portion 42 disposed in an end portion of the anchor body 41, an anchor rod 43 pivotally supporting the anchor body 41, and a plurality of pallets (the first impulse pallet 46, the first stop pallet 47, the second impulse pallet 48, and the second pallet stop 49).

The anchor rod 43 is disposed in an end portion of the body of the anchor 41. The anchor rod 43 pivotally supports the anchor body 41 so that it is pivotally movable. around a central axis P of the anchor rod 43.

A kite-shaped portion 44 formed in a U-shape in a plan view is disposed in the other end portion of the anchor body 41 which is the opposite side to the anchor rod 43. An inner side of the kite-shaped portion 44 is adapted to serve as a pallet bridge 44a with which the impulse pin 36 can engage or separate due to the pivotal movement of the double roller 30.

In addition, the stinger 44b protruding towards the conical front face 39 of the double roller 30 is disposed on the inner side of the kite-shaped portion 44. When the double roller 30 is pivotally displaced a distal end of the stinger 44b slidably engages a partial area on both sides through the crescent-shaped portion 39a in the circumferential direction, in the outer peripheral surface of the front conical face 39. This may prevent the anchor 40 to be pivotally displaced even when the impulse pin 36 separates from the pallet bridge 44a.

The pallet holding portion 42 formed essentially in a cross shape in the plan view is disposed in an end portion of the anchor body 41. The pallet holding portion 42 has a pair of portions of the pulse pallet holding 42a and 42c (the first impulse pallet holding part 42a and the second impulse pallet holding part 42c) which are arranged to widen towards the opposite side of the double roller 30 and a pair of stop pallet holding portions 42b and 42d (the first stop pallet holding portion 42b and the second stop pad holding portion 42d) which are arranged to widen toward one another. on the side of the double roll 30.

The first impulse pallet holding part 42a and the first stop pallet holding part 42b are arranged on the side of the first exhaust movable member 10 (which will be described later) with respect to the central axis P of the anchor rod 43. The second impulse pallet holding part 42c and the second stopping pallet holding part 42d are arranged on the side of the second escapement wheel 20 (which will be described farther) with respect to the central axis P of the anchor rod 43.

The first impulse pallet holding part 42a and the first stop pallet holding part 42b, and the second impulse pallet holding part 42c and the second stopping block holding part 42c 42d are formed in a symmetrical form with respect to the anchor body 41.

In the present embodiment, the first impulse pallet holding part 42a and the first stop pallet holding part 42b, and the second impulse pallet holding part 42c and the second part Shutoff pad 42d is configured to be formed in symmetrical form with respect to the anchor body 41. However, without being limited to the symmetrical shape, all of these elements can be formed into any desired shape. In this case, depending on the shape, the number of teeth may be modified for the first exhaust movable 10 and / or the second exhaust movable 20. Together with this change, the shape of the first holding part of impulse pallet 42a, the first stop pallet holding part 42b, the second impulse pallet holding part 42c, and / or the second stop pallet holding part 42d can be changed .

Slots are formed respectively in the first impulse pallet holding part 42a, the first stop pallet holding part 42b, the second impulse pallet holding part 42c, and the second part of stop pallet holding 42d.

The first impulse pallet 46 is inserted into and held by the slot in the first impulse pallet holding portion 42a. The first impulse pallet 46 is arranged to protrude from the first impulse pallet holding portion 42a. A pulse surface 46a which can collide with the first escapement wheel 10 (to be described later) is disposed in a projection portion of the first pulse pallet 46. The pulse surface 46a of the first impulse pallet 46 is formed to be flat, and is arranged to face the direction of rotation of the first exhaust movable 10. For example, the thickness of the first impulse pallet 46 is equal to the thickness of the anchor 40.

The first stop pallet 47 is inserted into and held by the slot in a first stop pallet holding portion 42b. The first stop pallet 47 is arranged to protrude from the first stop pallet holding portion 42b. An engagement-clearing surface 47a which can engage with or separate from the first escape wheel 10 is disposed in a projection portion of the first stop pallet 47. The engagement-release surface 47a of the first stop pallet 47 is formed to be flat, and is arranged to face the direction of rotation of the first exhaust movable 10. For example, the thickness of the first stop pallet 47 is thicker that the thickness of the first impulse pallet 46. The first stop pallet 47 protrudes towards the rear side (lower side in Fig. 2) of the movement 101 further than the first impulse pallet 46 .

The second impulse pallet 48 is inserted into and held by the slot in the second impulse pallet holding portion 42c. The second impulse pallet 48 is disposed to protrude from the second impulse pallet holding portion 42c. A pulse surface 48a that can collide with the second escapement wheel 20 (to be described later) is disposed in a projecting portion of the second pulse pallet 48. The pulse surface 48a of the second impulse pallet 48 is formed to be flat, and is arranged to face the direction of rotation of the second exhaust movable 20. For example, the thickness of the second impulse pallet 48 is equal to the thickness of the anchor 40.

The second stop pallet 49 is inserted into and held by the slot in the second stop pallet holding part 42d. The second stop pallet 49 is arranged to protrude from the second stop pallet holding portion 42d. An engagement-clearance surface 49a which can engage with or separate from the second exhaust movable member 20 is disposed in a projection portion of the second stop pallet 49. The engagement-release surface 49a of the second stop pallet 49 is formed to be flat, and is arranged to face the direction of rotation of the second exhaust movable 20. For example, the thickness of the second stop pallet 49 is thicker that the thickness of the second impulse pallet 48. The second stopping pallet 49 protrudes towards the rear side (bottom side in Fig. 2) of the movement 101 farther than the second impulse pallet 48.

As illustrated in FIG. 3, a pair of tilt pins 45a and 45b (shown omitted in Fig. 2) are disposed on both sides with respect to the anchor 40. The tilting pins 45a and 45b rise from the main stage 102 of the movement 101. The anchor 40 is pivotally displaced, thereby putting the anchor body 41 in contact with the tilting pins 45a and 45b. This adjusts the pivoting movement value of the anchor 40.

As illustrated in FIG. 2, for example, the first escapement wheel 10 and the second escape wheel 20 are elements formed respectively of a metallic material or a material having a crystalline orientation such as monocrystalline silicon, and are formed by carrying out a treatment Electroplating or Lithography Galvanoformung Abformung (LIGA), Deep Reactive Ion Etching (DRIE), and Metal Injection Molding (MIM) processes that use an optical method such as photolithography technology.

The first exhaust mobile 10 is a disc-shaped gear element having a central axis Q1, and it includes a first wheel 11, an exhaust pinion 12, and the first escape wheel 14.

The first wheel 11 includes several portions of teeth 11a on an outer peripheral surface. The tooth portion 11a of the first wheel 11 meshes with a tooth portion 21a of a second wheel 21 of the second escapement wheel 20 (which will be described later).

The exhaust pinion 12 meshes with the second mobile 106 (see Fig. 1) constituting the gear train 105. The energy of the motor spring 111 inside the motion cylinder 110 is transferred to the pinion exhaust 12 through the center mobile 108, the third mobile 107, and the second mobile 106 (see all of Figure 1). This causes the first escapement mobile 10 to rotate clockwise around the central axis Q1.

The first exhaust mobile 10 includes the first escape wheel 14 between the first wheel 11 and the exhaust pinion 12 in the axial direction. The first escape wheel 14 according to the present embodiment is formed in two layers including the first escape wheel for the pulse 15 and the first escape wheel for the stop 16.

The first escape wheel for the pulse 15 is disposed at a position corresponding to the first pulse pallet 46 of the anchor 40 in the axial direction of the central axis Q1, which is the rear side ( lower side in Fig. 2) of the movement 101 which is further away from the escape pinion 12, and the first pulse pallet 46 can come into contact with the first escape wheel for the pulse 15. The first wheel exhaust system for the pulse 15 has several first portions of pulse teeth 15a. Among the first pulse tooth portions 15a, a surface in the direction of rotation (in the clockwise direction in Fig. 3) on the side of the first escape wheel 10 is adapted to be a contact surface 15b which comes into contact with the impulse surface 46a of the first impulse pallet 46 of the anchor 40.

The first escape wheel for the stop 16 is disposed on the rear side (lower side in Fig. 2) of the movement 101 seen from the first escape wheel for the pulse 15, and the first stopping pallet 47 can engage with or separate from the first escape wheel for stopping 16. The first stopping escape wheel 16 has a plurality of first teeth portions for stopping16a. Of the first teeth portions for stopping 16a, a surface in the direction of rotation (in the clockwise direction in Fig. 3) on the side of the first escape wheel 10 is adapted to be an engagement-clearance surface 16b which can engage with or separate from the engagement-clearance surface 47a of the first stop pallet 47 of the anchor 40.

The second mobile escapement 20 is a disc-shaped gear element having a central axis Q2, and includes the second wheel 21 and a second escape wheel 24.

The second wheel 21 includes several portions of teeth 21a on an outer peripheral surface. The tooth portion 21a of the second wheel 21 meshes with the tooth portion 11a of the first wheel 11 of the first escape wheel 10. The energy of the motor spring 111 inside the movement barrel 110 is transferred to the second wheel 21 through the center mobile 108, the third mobile 107, the second mobile 106, and the first mobile escape 10 (see all of Figure 1). This causes the second mobile escapement 20 to rotate counterclockwise around the central axis Q2.

The second escapement wheel 20 includes the second escape wheel 24 on the front side (upper side in Fig. 2) of the movement 101 seen from the second wheel 21. The second escape wheel 24 according to the This embodiment is formed in two layers including a second escape wheel for the pulse 25 and a second escape wheel for the stop 26.

The second escape wheel for the pulse 25 is disposed at a position corresponding to the second impulse pallet 48 of the anchor 40 in the axial direction of the central axis Q2, and the second pallet of pulse 48 may contact the second escape wheel for pulse 25. The second escape wheel for pulse 25 has a plurality of second portions of pulse teeth 25a. Of the second pulse tooth portions 25a, a surface in the direction of rotation (in the anti-clockwise direction in Fig. 3) on the side of the second escape wheel 20 is adapted to be a contact surface 25b which contacts the impulse surface 48a of the second impulse pallet 48 of the anchor 40.

The second escape wheel for the stop 26 is disposed on the rear side (lower side in Fig. 2) of the movement 101 seen from the second escape wheel for the pulse 25, and the second pallet stopper 49 may engage with or separate from the second escape wheel for stop 26. The second escape wheel for stop 26 has a plurality of second portions of multiple teeth for stop 26a. Of the second teeth part for the stop 26a, a surface in the direction of rotation (in the anti-clockwise direction in Fig. 3) on the side of the second escape wheel 20 is adapted to be an engagement-clearance surface 26b that can engage with or disengage from the engagement-clearance surface 49a of the second stop pallet 49 of the anchor 40.

Here, the lengths of the first stop pallet holding portion 42b and the second stop pad holding portion 42d are respectively configured to be approximately half the length of the anchor body 41. That is to say, in comparison with the escapement disclosed in the second patent document, it is possible to form a wider anchor 40. Consequently, the magnitude of the torque generated when the first stopping pallet 47 and the second stop pallet 49 of the anchor 40 separate from the first escape wheel 14 of the first escape wheel 10 and the second escape wheel 24 of the second escape wheel 20 can be further decreased in comparison to that in the second patent document. Therefore, it is possible to assemble the exhaust 1 which has excellent energy transfer efficiency.

[Operation]

Figs. 4-7 are views to illustrate the operation of the exhaust 1.

Subsequently, the operation of the escapement 1 configured as described above will be described with reference to FIGS. 4-7.

[0079] Hereinafter, the operation in a case where the double roller 30 moves in a counter-clockwise pivotal manner about a central axis O in response to free oscillations of the balance-spring 5 (see Fig. 1) will be described sequentially. In addition, in the state of the beginning of operation in the following description, as illustrated in FIG. 4, the anchor body 41 of the anchor 40 is in contact with the tilting pin 45b on the side of the second mover 20, and the second stopping pallet 49 of the anchor 40 engages with the second escape wheel for the stop 26 of the second mobile exhaust 20. At this moment, the rotation is stopped in the second mobile exhaust 20 and the first mobile exhaust 10 which mesh with the second mobile d exhaust 20.

As illustrated in FIG. 4, if the double roll 30 is pivotally displaced counterclockwise, the pallet bridge 44a of the anchor 40 engages with the impulse pin 36. At this time, the ankle pulse 36 contacts the inner surface of a pallet bridge 44a (on the right-hand side in Fig. 4). In this way, the rotational force (i.e., the spring force of the hairspring spiral 5, see Fig. 1) of the double roller 30 acts on the anchor 40.

Then, as illustrated in FIG. 5, if the double roll 30 is more pivotally displaced counterclockwise, the pulse pin 36 presses the inner surface of the pallet bridge 44a. In this way, the anchor 40 and the first impulse pallet 46, the first stop pallet 47, the second impulse pallet 48, and the second stopping pallet 49 which must be held in the anchor 40 are pivotally displaced in a clockwise direction about a central axis P of the anchor rod 43. Here, the crescent-shaped portion 39a is formed in the front conical face 39. In this manner, when the anchor 40 and the impulse pin 36 engage with each other, the front tapered face 39 and the tug 44b of the anchor 40 do not come into contact with each other. other. As a result, the rotational force of the double roll 30 can be effectively transferred to the anchor 40 without interfering with the pivoting movement of the anchor 40.

If the anchor 40 is pivotally displaced, the second stopping pallet 49 is moved in the direction away from the second stenter 20. In this way, the second stopping pallet 49 and the second escape wheel for the stop 26 of the second mobile escapement 20 separate from one another, and the second mobile exhaust 20 and the first mobile escape 10 which mesh with the second mobile exhaust 20 become respectively pivotally movable. Consequently, the energy of the mainspring 111 inside the movement barrel 110 (see FIG 1) is transferred to the first mobile 10 via the center mobile 108, the third mobile 107, and the second mobile 106, thereby causing the first escapement mobile 10 to turn in the direction of clockwise. In addition, the energy of the mainspring 111 inside the movement barrel 110 (see FIG 1) is transferred to the second escapement wheel 20 which meshes with the first escapement wheel 10 by the bias of the first escapement mobile 10, thereby causing the second escapement mobile 20 to rotate in the opposite direction of the clockwise.

In addition, if the second escapement wheel 20 rotates in the counterclockwise direction, the second pulse tooth portion 25a of the second escape wheel for the pulse 25 collides. with the second impulse pallet 48. In this way, as illustrated in FIG. 6, the energy of the mainspring 111 within the movement cylinder 110 (see Fig. 1) is induced to the double roll 30 by the second mobile 20 and the anchor 40 as the force of rotation of the double roll 30 (i.e., sprung balance 5: see Fig. 1), and the double roll 30 is further pivotally displaced in a counter-clockwise direction. shows. In addition, if the anchor 40 is pivotally displaced, the first stop pallet 47 is moved in the direction toward the first exhaust movable 10.

Then, as illustrated in FIG. 7, the first stopping pallet 47 moving close to the first movable escapement 10 and the first movable rotating escapement 10 come into contact with each other, the first stopping pallet 47 and the first part teeth for stopping 16a of the first escape wheel for the stop 16 engage with each other, and the anchor body 41 contacts the tilting pin 45a. In this way, the rotation of the first mobile escapement 10 is stopped, and the second mobile escapement 20 which meshes with the first mobile exhaust 10 is also stopped.

After the amount of counterclockwise pivoting movement of the double roll 30 is maximized, the direction of pivotal movement of the double roll 30 is reversed in the opposite direction to the direction in the clockwise direction. 'a watch.

Then, the operation similar to that described above causes the first stopping pallet 47 and the first tooth portion for the stop 16a of the first escape wheel for the stop 16 to separate. one of the other so that the first mobile exhaust 10 rotates in the direction of clockwise. In addition, if the first escapement wheel 10 rotates in the clockwise direction, the first pulse tooth portion 15a of the first escape wheel for the pulse 15 collides with the first pallet In this way, the energy of the mainspring 111 within the motion cylinder 110 (see Fig. 1) is induced to the double roll 30 by means of the first escapement mobile. 10 and the anchor 40 as the rotational force of the double roll 30 (i.e., the balance-spring 5, see Fig. 1), and the double roll 30 is moved further pivoting way in a clockwise direction. In addition, if the anchor 40 is pivotally displaced, the second stopping pallet 49 is moved in the direction towards the second stenter 20.

Then, as illustrated in FIG. 4, the second stop pallet 49 of the anchor 40 engages with the second escape wheel for the stop 26 of the second escape mobile 20, and the anchor body 41 comes into contact with the pin tipping 45b. In this way, the respective rotations of the second exhaust mobile 20 and the first exhaust mobile 10 which mesh with the second exhaust mobile 20 are stopped.

[0088] Hereinafter, the operation described above is performed repeatedly. In this way, the escapement 1 according to the embodiment can be operated as an escapement called escapement of the indirect pulse type 1 in which the commitment-separation between the second mobile escapement 20 and the second stop pallet 49 , and the engagement-separation between the first escapement mobile 10 and the first stop pallet 47 are performed repeatedly and alternately, and in which the energy is induced to the balance-spring 5 (see Fig. 1) through the anchor 40.

(Advantageous effect)

According to the embodiment, the escapement 1 includes the anchor 40 including the first impulse pallet 46 and the second impulse pallet 48, the first exhaust mobile 10 having the first escape wheel 14 with which the first impulse pallet 46 can come into contact, and the second escapement wheel 20 having the second escape wheel 24 with which the second impulse pallet 48 can come into contact. Consequently, it is possible to assemble the escapement called indirect impulse type escapement 1 which transfers the energy to the balance-spring 5 via the anchor 40. Therefore, it is possible to ensure a functioning and a stable energy transfer.

In addition, the anchor 40 has the first pulse pallet 46, the second pulse pallet 48, the first stop pallet 47, and the second stop pallet 49. As a result, it is possible to adjust in a desired manner the engagement value of the respective pallets with the first escape wheel 14 and the second escape wheel 24 by suitably adjusting the size or shape of the respective pallets (of the first pallet of impulse 46, the second impulse pallet 48, the first stopping pallet 47, and the second stopping pallet 49). In addition, in comparison with the technology disclosed in the second patent document, the anchor 40 can freely use an improved design. Consequently, by appropriately adjusting the size of the anchor 40, the desired magnitude can be adjusted for the torque generated when the first stop pallet 47 and the second stop pallet 49 of the anchor 40 separate from each other. the first escape wheel 14 and the second escape wheel 24. Therefore, it is possible to assemble the exhaust 1 which has excellent energy transfer efficiency.

In addition, the first escape wheel 14 is formed in two layers including the first escape wheel for the pulse 15 with which the first impulse pallet 46 can come into contact, and the first impeller 15 exhaust for the stop 16 with which the first stop pallet 47 can engage with or separate from. As a result, it is possible to independently and desiredly adjust the amount of engagement between the first impulse pallet 46 and the first impeller 15 for the impulse and the amount of engagement between the first impulse pallet stop 47 and the first escape wheel for stopping 16. In addition, the second escape wheel 24 is formed in two layers including the second escape wheel for the pulse 25 with which the second impulse pallet 48 may contact, and the second escape wheel for the stop 26 with which the second stop pallet 49 can engage with or separate from. As a result, it is possible to independently and desiredly adjust the amount of engagement between the second impulse paddle 48 and the second impeller for the impulse and the amount of engagement between the second paddle stop 49 and the second escape wheel for stop 26. Therefore, the stable operation and energy transfer are ensured more, and it is possible to assemble the exhaust 1 which has excellent transfer efficiency d 'energy.

In addition, according to the movement 101 and the timepiece 100 of the embodiment, it is made available the exhaust 1 which ensures stable operation and energy transfer, and which has an excellent efficiency of energy transfer. Therefore, it is possible to provide the movement 101 and the timepiece 100 which show a high performance.

The embodiment is configured so that the energy of the mainspring 111 inside the movement cylinder 110 is transferred to the first exhaust mobile 10. However, the energy transferred to the first mobile exhaust 10 is not limited to that. For example, a configuration may be adopted in which energy is transferred to the first movable escapement 10 from the mainspring disposed in a different location of the motion cylinder 110.

[0095] (Example of modification of the embodiment)

FIG. 8 is a plan view of the exhaust 1 according to an exemplary modification of the embodiment.

Then, the exhaust 1 according to the modification example of the embodiment will be described.

In the embodiment, the first escape wheel 14 of the first escape mobile 10 is formed in two layers including the first escape wheel for the pulse 15 and the first escape wheel for the In addition, the second escape wheel 24 of the second escape wheel 20 is formed in two layers including the second escape wheel for the pulse 25 and the second escape wheel for the stop 26 ( see Fig. 2).

On the other hand, as illustrated in FIG. 8, the modification example of the embodiment is different from the embodiment in that the first escape wheel for the pulse 15 and the first escape wheel for the stop 16 are formed in one piece as a the first escape wheel 14, and in that the second escape wheel for the pulse 25 and the second escape wheel for the stop 26 are formed in one piece as the second escape wheel 24. Hereinafter, the description will be omitted with respect to configuration items that are the same as those in the embodiment.

The first escapement wheel 10 includes the first escape wheel 14. The first escape wheel 14 has a plurality of first exhaust tooth portions 14a. The first impulse pallet 46 may contact the first exhaust tooth portions 14a of the first escape wheel 14, and the first stop pallet 47 may engage with or separate from the first portions of exhaust tooth 14a. That is, the first escape wheel 14 according to the exemplary modification of the embodiment functions as the first escape wheel for the pulse 15 and the first escape wheel for stopping. according to the embodiment.

The second escape wheel 20 includes the second escape wheel 24. The second escape wheel 24 has several second exhaust tooth portions 24a. The second impulse pallet 48 may contact the second exhaust tooth portions 24a of the second escape wheel 24, and the second stop pallet 49 may engage with or separate from the second exhaust portions 24a. exhaust tooth 24a. That is, the second escape wheel 24 according to the modification example of the embodiment functions as the second escape wheel for the pulse 25 and the second escape wheel for the stop 26 according to the embodiment.

According to the modification example of the embodiment, it is not necessary to form a wheel by dividing the wheel into multiple layers. Therefore, it is possible to easily manufacture the first exhaust mobile 10 and the second exhaust mobile 20.

The technical scope of this invention is not limited to the embodiment described above, and it may be modified in addition in different ways in a field of application not moving away from the spirit of the invention. 'invention.

The shapes or materials of the first exhaust mobile 10, the second exhaust mobile 20, the double roller 30, the anchor 40, the pulse pin 36, the first impulse pallet 46 , the first stop pallet 47, the second impulse pallet 48, and the second stop pallet 49 are not limited to those according to the embodiment and the modification example of the embodiment.

In addition, the methods of fixing the pulse pin 36, the first pulse pallet 46, the first stop pallet 47, the second pulse pallet 48, and the second pallet stop 49 are not limited to those according to the embodiment and the modification example of the embodiment.

In addition, so that the field of application does not depart from the spirit of the invention, the configuration elements according to the embodiment described above can be appropriately replaced by elements of the invention. known configuration.

Claims (4)

An exhaust (1) comprising: an anchor (40) having a first impulse pallet (46), a second impulse pallet (48), a first stop pallet (47), and a second stop pallet (49), and is pivotally movable about an anchor rod (43); a first escape wheel (10) which has a first escape wheel (14) with which the first impulse paddle (46) can contact while transmitting its energy, and with which the first stop paddle (47) can engage with or separate from; and a second escape wheel (20) which has a second escape wheel (24) with which the second impulse pallet (48) can come into contact, and with which the second stopping pallet (49) can engage with or separate from, and which meshes with the first movable exhaust (10). 2. The exhaust (1) according to claim 1, wherein the first escape wheel (14) of the first escape wheel (10) is formed in two layers including a first escape wheel for the pulse (15) with which the first pulse pallet (46) can come into contact, and a first escape wheel for the stop (16) with which the first stop pallet (47) can engage with or separate from, and wherein the second escape wheel (24) of the second escape wheel (20) is formed in two layers including a second escape wheel for the pulse (25) with which the second pulse pallet (48) can come into contact, and a second escape wheel for the stop (26) with which the second stop pallet (49) can engage with or separate from. 3. A timepiece movement (101) (100) comprising: the exhaust (1) according to claim 1 or 2. 4. A timepiece (100) comprising: the timepiece movement (101) according to claim 3.