JP3531473B2 - Clock and clock hand adjustment control method - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a timepiece and a timepiece alignment control method for a timepiece, and relates to a mechanical timepiece having a mainspring and a balance and converting mechanical energy output when the mainspring is unwound into electric energy by a generator. By operating the rotation control means with the electric energy to control the rotation cycle of the generator, it can be used for an electronically controlled mechanical timepiece that accurately moves a pointer fixed to a train wheel.

[0002]

2. Description of the Related Art Conventionally, there is known a mechanical timepiece that uses mechanical energy of a mainspring to move a pointer.

Further, in recent years, as described in JP-A-8-5758, mechanical energy when the mainspring is released is converted into electric energy by a generator, and the rotation control means is operated by the electric energy. An electronically controlled mechanical timepiece is also often used in which the hands fixed to the train wheel are moved accurately to display the time accurately by controlling the value of the current flowing through the coil of the generator.

By the way, as shown in FIG. 8, the mainspring has a characteristic that the torque output from the mainspring becomes small at the last rewinding (when the number of turns becomes equal to or less than a predetermined number of turns B). I have it.

When the output torque of the mainspring decreases in this way, the movement of the hand is delayed or stopped. Therefore, it is necessary to wind the mainspring and adjust the hands at the correct time by performing the needle alignment operation. This hand setting operation is performed, for example, by pulling out the crown (winding stem) to make it possible to set the hands and rotating the crown to rotate the hour hand and the minute hand. In addition, conventionally, this needle matching operation can always be performed regardless of the state of the mainspring.

[0006]

[Problems to be Solved by the Invention]
Usually, from the state where the mainspring unwinds and the needle stops, or when it rotates very slowly, the mainspring is wound up and the needle starts to move normally, and then the crown is pulled out to stop the needle.

At this time, even if the winding amount of the mainspring is small, for example, even when the number of windings is slightly more than the number B of windings in FIG. 8, the needle starts to move as usual, and the needle alignment operation is performed in that state. There is a possibility to go. Further, in this case, there is a problem that the number of windings of the mainspring is reduced to the number of windings B or less in FIG.

Further, in the electronically controlled mechanical timepiece, a capacitor for storing the electric energy obtained by the generator is provided and the electric energy is output from the capacitor to the rotation control means for driving.

However, when the mainspring is rewound and stopped, the generator is not operated, and the electric energy is not accumulated in the capacitor, when the mainspring is slightly wound up to perform the needle alignment operation, the capacitor is removed. Needle adjustment operation is performed when the battery is not fully charged.

At the time of the needle matching operation, the needle, that is, the train wheel is stopped, so that the generator is stopped and power is not generated. For this reason, all the electric energy charged in the capacitor is discharged to the control circuit means during the needle matching operation, and even if the needle matching operation is performed, the control circuit means stops and accurate hand movement control is performed. In the end, there is a problem that the time indication accuracy is deteriorated even immediately after the hand adjusting operation.

A first object of the present invention is to provide a timepiece capable of lengthening the duration of the timepiece after the hand setting operation.

A second object of the present invention is to provide, in addition to the first object, a timepiece and a timepiece alignment control method capable of preventing a decrease in time indication accuracy.

[0013]

A timepiece according to claim 1 of the present invention is a timepiece in which the mechanical energy of a mainspring transmitted through a train wheel moves a pointer connected to the train wheel. A winding unit for storing energy, an addition / subtraction train wheel for adding / subtracting the winding amount and the rewinding amount of the mainspring, and torque obtained by adding / subtracting the winding amount and the rewinding amount in the addition / subtracting train wheel is transmitted. When the mainspring has a predetermined number of windings or less, it is operated in conjunction with the rotation of the addition / subtraction car to lock the hand adjustment mechanism inoperable. It is characterized in that it is provided with a needle adjusting lock mechanism.

In the present invention as described above, the needle alignment lock mechanism which detects the winding amount and the rewinding amount of the mainspring by using the addition / subtraction wheel train, and is operated in association with the rotation of the addition / subtraction vehicle to which the torque is transmitted. By this, when the mainspring is less than the predetermined number of turns, that is, it is not possible to adjust the hands until the mainspring has been sufficiently wound up, so it is possible to increase the duration from the time when the hands are adjusted until the watch stops again. , It can be a convenient clock.

At this time, since the addition and subtraction train wheel is composed of a plurality of gears and the like, the addition and subtraction wheel or the like can be arranged in the space around the barrel wheel through the train wheel. Therefore, even in the case of a watch having a small space for arranging parts, the train wheel for addition and subtraction and the like can be sufficiently arranged, and the watch can also be locked for hand adjustment.

[0016] Here, it is preferable that the needle alignment lock mechanism is configured to engage with a component forming the needle alignment mechanism to stop the movement of the needle alignment mechanism component.

Usually, a timepiece is provided with parts constituting a hand setting mechanism which is brought into an operable state by pulling a crown (winding stem). Therefore, if the movement of this needle matching mechanism component is stopped, the operation itself for pulling the crown is locked, so that it can be locked so that the needle matching operation cannot be performed, and the needle matching mechanism is locked to the user. Can be clearly understood.

In this case, the needle alignment lock mechanism has a locking portion capable of engaging with the needle alignment mechanism component, and is provided with a needle alignment lock lever for stopping the movement of the needle alignment mechanism component. It is preferable.

Further, an operating engagement portion composed of a concave groove or a convex portion is formed on the outer periphery of the addition / subtraction vehicle, and the needle adjusting lock lever is pressed against the addition / subtraction vehicle. An engaging projection that can be engaged is formed in the operating engagement portion of the addition / subtraction vehicle, and if the engagement projection is not engaged in the operation engagement portion of the addition / subtraction vehicle, the locking is performed. Preferably, the portion is configured to engage the needle alignment mechanism component to stop movement of the needle alignment mechanism component.

When the engagement protrusion of the needle adjusting lock lever is pressed against the addition / subtraction vehicle, the engagement protrusion is surely engaged with the operating engagement portion such as a cut groove, or is contacted with the outer periphery of the addition / subtraction vehicle. They can be kept in contact with each other, vibration is not generated, stable operation is possible, and the reliability of the needle alignment lock mechanism can be improved.

At this time, it is preferable that the rotation center of the needle alignment lock lever is arranged between the needle alignment mechanism component with which the locking portion is engaged and the addition / subtraction vehicle. In this case, since the length from the center of rotation to the needle alignment mechanism component can be shortened, the rigidity of the needle alignment lock lever can be improved accordingly.

Further, the needle adjusting mechanism is configured to lock the needle adjusting mechanism in an inoperable state by engaging with the parts constituting the needle adjusting mechanism and separating a part of the parts of the needle adjusting mechanism. It may have been done.

In this case, since the needle matching mechanism is made inoperable by disconnecting a part of the needle matching mechanism component, the needle matching operation itself such as pulling out and rotating the external operating member such as the crown can be performed. Therefore, when the operation of the external operating member itself is locked, a large force may be applied to the external operating member by the user trying to operate the external operating member by force, but a part of the needle adjusting mechanism part is disconnected. In this case, since the external operation member itself can be operated, it is possible to prevent an unreasonable force from being applied.

For example, the needle aligning mechanism includes, as the needle aligning mechanism parts, a winding stem that is movable in the axial direction, and a ratchet wheel that can move forward and backward with the movement of the winding stem and mesh with a small iron wheel. The needle alignment lock mechanism is inoperable by stopping the forward / backward movement of the clutch wheel to release the meshing with the small iron wheel and disconnecting a part of the needle alignment mechanism parts. It may be configured to lock to.

According to this structure, the needle alignment lock mechanism can be locked only by providing the needle alignment lock mechanism that can be engaged with the clutch wheel, and the configuration of the needle alignment lock mechanism can be simplified and parts can be provided. The number of points can be reduced and the cost can be reduced.

Further, in the timepiece of the present invention, when the mainspring is wound up to a predetermined number of turns or more, it is operated in association with the rotation of the addition / subtraction wheel, and the torque during winding in the addition / subtraction train wheel is increased. It is also possible to provide a winding train wheel to which is transmitted and a winding lock mechanism for stopping the winding of the mainspring by locking the winding portion.

If the winding lock mechanism is provided, the winding can be stopped when the mainspring reaches a predetermined number of windings, and the mainspring can be prevented from being overtightened.

Further, in the timepiece of the present invention, when the mainspring is rewound to a predetermined number of turns or less, the timepiece is operated in association with the rotation of the addition / subtraction wheel to rewind in the addition / subtraction train wheel. It may be provided with a pointer lock mechanism that locks the rewinding wheel train to which the torque is transmitted and the wheel train to which the pointer is coupled to stop the movement of the pointer.

If the pointer lock mechanism is provided, the train wheel, that is, the pointer can be forcibly stopped and the time is erroneously displayed when the output torque of the mainspring is reduced and accurate hand movement becomes impossible. Can be prevented.

Furthermore, the timepiece controls the rotation cycle of the generator by being driven by the generator which converts the mechanical energy of the mainspring transmitted through the train wheel into electric energy and the converted electric energy. It is preferably an electronically controlled mechanical timepiece provided with rotation control means.

A watch according to claim 11 of the present invention is a timepiece, a generator for converting mechanical energy of the mainspring transmitted through the train wheel into electric energy, and a pointer connected to the train wheel. And a rotation control means for controlling the rotation cycle of the generator by being driven by the converted electrical energy, in a case where a timepiece hand-setting mechanism is provided and the mainspring has a predetermined number of turns or less. Further, a needle alignment lock mechanism for locking the needle alignment mechanism inoperable is provided.

In the present invention as described above, since the needle alignment lock mechanism is provided and the needle alignment cannot be performed until the mainspring is sufficiently wound up, the charging unit such as the capacitor is set to a higher voltage state. Needle adjustment operation can be performed. For this reason, when returning from the needle matching operation, the system can be kept driven by the capacitor, and the hand movement control can be performed with extremely high accuracy.

In this electronically controlled mechanical timepiece,
A winding lock mechanism may be provided that locks the winding portion and stops winding of the mainspring when the mainspring is wound more than a predetermined number of times.

If the winding lock mechanism is provided, it is possible to prevent the mainspring from being over-tightened, and the output torque at the start of rewinding does not become significantly large, and the output torque can be kept substantially constant. Therefore, at the time of starting the rotor immediately after the needle alignment, it is possible to accurately predict the time until the control circuit starts driving and becomes controllable, and when the needle alignment operation is performed after the winding lock, the rotation control circuit Even when the watch is stopped, the correction can be performed with high accuracy while the control circuit is stopped, and the time indication accuracy in the electronically controlled mechanical timepiece can be further improved.

In this electronically controlled mechanical timepiece,
A pointer lock mechanism may be provided to lock the train wheel that transmits the torque from the mainspring to the generator side to stop the movement of the pointer when the mainspring is rewound to a predetermined number or less.

If the handwheel lock mechanism is provided, the train wheel, that is, the hands can be forcibly stopped when the output torque of the mainspring is reduced and accurate hand movement cannot be performed. It can be prevented.

The invention according to claim 14 is characterized in that a mainspring, a generator for converting mechanical energy of the mainspring transmitted through the train wheel into electric energy, a pointer connected to the train wheel, and a converter. A method for controlling time adjustment of a timepiece, which comprises a rotation control means for controlling the rotation cycle of the generator driven by the generated electric energy, and a timepiece adjustment mechanism, wherein the mainspring has a predetermined number of windings or less. The needle alignment lock mechanism locks the needle alignment mechanism inoperable to disable the needle alignment operation.

Also in the present invention as described above, since the needle alignment lock mechanism is provided and the needle alignment cannot be performed until the mainspring is sufficiently wound up, the charging unit such as the capacitor is set to a higher voltage state. Needle adjustment operation can be performed. For this reason, when returning from the needle matching operation, the system can be kept driven by the capacitor, and the hand movement control can be performed with extremely high accuracy.

[0039]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a plan view schematically showing an electronically controlled mechanical timepiece as a timepiece according to this embodiment, FIGS. 2 and 4.
FIG. 4 is a cross-sectional view of the main part thereof.

1 to 4, the electronically controlled mechanical timepiece is provided with a barrel wheel 1 including a mainspring 1a, a barrel gear 1b, a barrel stem 1c and a barrel lid 1d. Mainspring 1a
Has an outer end fixed to the barrel wheel 1b and an inner end fixed to the barrel arbor 1c. The barrel barrel 1c is supported by the main plate 2 and rotates integrally with the ratchet wheel 4.

The ratchet wheel 4 meshes with the spigot 3 so as to rotate clockwise but not counterclockwise. This square wheel & pinion 4 is operated by operating a winding stem 31 connected to a crown (not shown), so that a chisel wheel 32, a round hole wheel 33,
The barrel 1a is rotated through the square hole intermediate wheel 34 to rotate the barrel barrel 1c to wind up the mainspring 1a. Therefore, the winding stem 31, the chisel wheel 32, the round hole wheel 33, the square hole intermediate wheel 34, and the square hole wheel 4 constitute a winding portion 30 for storing energy in the mainspring 1a.

As shown in FIG. 3, the rotation of the barrel wheel 1b is transmitted to the center wheel & pinion 6 and then accelerated to the third wheel & pinion 7.
The third wheel 7 is transmitted to the second hand wheel 8 and the fourth wheel 9 and then to the fifth wheel 10, the sixth wheel 11 and the rotor 12 by sequentially increasing the speed from the fourth wheel 9. Then, the second wheel 6 has a tubular pinion 6a.
The minute hand (not shown) is fixed via the, and the second hand is fixed to the second hand wheel 8. In addition, the back car 38
The hour wheel 6b is connected via the, and the hour hand is fixed to the hour wheel 6b.

The vehicles 6 to 11 and the rotor 12 are
It is supported by the train wheel bridge 14, the second bridge 15, and the main plate 2.
Further, the wheels 6 to 11 constitute a train wheel 13 that transmits the mechanical energy of the mainspring 1a to the hands (hour hand, minute hand, second hand).

As shown in FIG. 1, this electronically controlled mechanical timepiece has a generator 20 composed of a rotor 12 and coil blocks 21 and 22. The rotor 12 includes a rotor magnet 12a, a rotor pinion 12b, and a rotor inertia disk 1
2c. Of these, the rotor inertial disk 12c
Is for reducing fluctuations in the rotational speed of the rotor 12 with respect to fluctuations in the driving torque from the barrel wheel 1.

The coil blocks 21 and 22 have cores 23, respectively.
The coil 24 is wound around each coil. Each core 23 includes a core stator portion 23a arranged adjacent to the rotor 12, a core winding portion 23b around which the coil 24 is wound, and a core magnetic conduction portion 2 connected to each other.
3c is integrally formed.

In the above electronically controlled mechanical timepiece, the generator 2
AC output from 0 is boost rectification, full-wave rectification, half-wave rectification,
A smoothing capacitor is boosted and rectified through a rectifier circuit including transistor rectifier and the smoothing capacitor is charged, and a rotation control circuit (rotation control means) (not shown) that controls the rotation of the generator 20 is operated by the power from the capacitor. In addition,
The rotation control circuit is composed of an integrated circuit (IC) including an oscillation circuit, a frequency dividing circuit, a rotation detection circuit, a rotation speed comparison circuit, an electromagnetic brake control means, etc., and a crystal oscillator is used for the oscillation circuit.

In order to adjust the minute hand and the hour hand, the crown is pulled out to move the winding stem 31 in the axial direction, and the handwheel 35, the click spring 41, and the bolt 42 are used to move the hand wheel 35 to the setting wheel 36. It is performed by moving to the side and engaging with each other, and rotating the cannon pinion 6a and the hour wheel 6b from the small iron wheel 36 through the intermediate wheel 37 of the day and the intermediate wheel 38 of the day. Therefore, the crown, the winding stem 31, the clutch wheel 35, the small iron wheel 36, the intermediate wheel of the day 37, the vehicle of the day 38,
The needle 40, the click spring 41, and the needle 42 form a needle alignment mechanism 44.

This electronically controlled mechanical timepiece has a mainspring 1
An addition / subtraction train wheel 50 for adding / subtracting the winding amount and the rewinding amount of a is provided.

The addition / subtraction train wheel 50 has a power reserve hand 5.
No. 1 is fixed, a power reserve wheel 53 fixed to the shaft of this eighty wheel 52, a first planet wheel 54a meshing with the power reserve wheel 53, and this planet wheel 54a. The eighteenth wheel 54 having a second planetary wheel 54b integrated with the second planetary wheel 54b, the planetary intermediate wheel 55 meshing with the second planetary wheel 54b of the eighty most wheel 54, and the planetary intermediate wheel 5
The 82nd wheel 56 and the 82nd wheel 5 that rotate together with the 5th wheel
No. 83 57 that meshes with No. 6, No. 58 58 that meshes with No. 57 57, and No. 5 No. 5 which is the planetary car
85th wheel 59 as a solar car with 4 attached,
The 86th wheel 60 that meshes with the 85th wheel 59, the 87th wheel 61 that meshes with the 86th wheel 60, and the 87th wheel 6
It is configured by including an eighty-eight wheel & pinion 62 meshing with 1.

The eighty-fourth wheel 58 is meshed with the square hole wheel 4, and the eighty-eight wheel 62 is meshed with the barrel wheel 1b of the barrel wheel 1.

Therefore, when the ratchet wheel 4 is rotated by the winding operation of the mainspring 1a, the torque is gradually reduced from the 84th wheel 58 to the 83rd wheel 57, 82nd wheel 56, 8th wheel. It is adapted to be transmitted to the tenth most wheel 54. Here, when the mainspring 1a is wound up, the barrel wheel 1b rotates slowly and is almost stopped, so that the 88th wheel 62 to the 85th wheel 59 are fixed and transmitted to the 88th wheel 54. The torque is transmitted to the power reserve hand wheel 53, the 80th wheel 52, and the power reserve hand 51.

On the other hand, when the mainspring 1a is rewound, the square wheel & pinion 4 is stopped, so that the number 84 wheel 58 to the planetary intermediate wheel 55 are also stopped. When the barrel wheel 1b is rotated, the torque thereof is gradually reduced from the 88th wheel 62 to the 87th wheel 61, the 86th wheel 60, and the 85th wheel 59.
Be transmitted to. At this time, since the intermediate planetary wheel 55 with which the eighteenth wheel 54 meshes is stopped, the eighty-eighth wheel 54 revolves around the planetary intermediate wheel 55 while revolving around its axis. As a result, the power reserve handwheel 53 meshing with the forty-first wheel 54 also rotates in the opposite direction to the winding operation of the mainspring 1a, and the eighties wheel 52 and the power reserve hand 51 also rotate in the opposite direction. It is supposed to be done.

In this embodiment, since the reduction gear ratio is set to 1/12 from the barrel complete wheel 1 (square slot wheel 4) to the 80th wheel 52, when the number of turns of the mainspring 1a is "6" ( The rotation angle is 360 degrees × 6 = 2160 degrees), and the 80th wheel 52, that is, the power reserve hand 51 is set to rotate 180 degrees.

Therefore, in the addition / subtraction train wheel 50, the 84th wheel 58, the 83rd wheel 57, and the 82nd wheel 56 which transmit the torque from the square hole wheel 4 to the 80th wheel 52. , Planetary intermediate car 5
A winding wheel train 50a is constituted by the fifth, forty-eighth wheel 54 and the power reserve wheel 53, and the eighty-eighth wheel 62, the eighty-seventh wheel for transmitting the torque from the barrel gear 1b to the eighty-eight wheel 52. 61, 86th car 60, 85th car 59, 80th car 5
4. The power reserve wheel 53 constitutes a rewinding wheel train 50b.

When the square wheel & pinion 4 rotates, a torque corresponding to the winding amount of the mainspring 1a is transmitted to the eighteenth wheel & pinion 52 and added as rotation in a predetermined direction.
When the barrel wheel 1b is rewound and rotates, the mainspring 1a
The torque corresponding to the amount of rewinding is transmitted and subtracted as rotation in the opposite direction. Therefore, the number 80 wheel 52 constitutes an addition / subtraction vehicle.

As shown in FIG. 5, the eighteenth wheel & pinion 52 is formed in a disk shape with no teeth formed on its outer circumference. A notch groove 52a is formed along the line.

Around the 80th wheel 52, a winding lock mechanism 70 that locks (stops) the rotation of the winding wheel train 50a, a pointer lock mechanism 80 that locks (stops) the rotation of the rewinding wheel train 50b, A needle alignment lock mechanism 90 that locks the needle alignment mechanism 44 is provided.

The winding lock mechanism 70 includes a forty-fourth wheel 58.
And a winding lock lever 71 that engages with. The lever 71 is rotatable about a rotating shaft 71a provided between the eighty-fourth wheel 58 and the eighty-eight wheel 52,
A locking portion 72 that can be engaged with the teeth of the eighteenth wheel & pinion 58 and an engaging projection 73 that can be engaged with the cut groove 52a of the eighty-fourth wheel 52 are provided. From the main body of the lever 71, approximately U
A spring portion 74 extending in a letter shape abuts on the locking pin 75, and the action of the spring portion 74 causes the engagement projection 7
3 is pressed against the 80s wheel 52. Therefore, when the engagement protrusion 73 is engaged with the cut groove 52a of the eighteenth wheel 52, as shown by a two-dot chain line in FIG.
The locking portion 72 engages with the 84th wheel 58 to make the 84th wheel 58.
Of the winding wheel 50a, the winding wheel train 50a, the ratchet wheel 4, and the winding portion 30 are locked, that is, stopped.
The winding of a will be stopped.

On the other hand, in the case where the engaging projection 73 is in pressure contact with the outer periphery of the eighteenth wheel 52 other than the notch groove 52a, FIG.
As indicated by the solid line, the locking portion 72 is also separated from the eighty-fourth wheel 58, and the winding wheel train 50a can be rotated and the mainspring 1a can be wound up.

As described above, the eighteenth wheel 52 is set to rotate 180 degrees when the number of turns of the mainspring 1a becomes 6, that is, while the ratchet wheel 4 rotates six times. Therefore, when the number of turns at which winding is desired to be locked (for example, the number of turns A before the output torque changes significantly in the case of the mainspring 1a having the characteristics shown in FIG. 8), the engagement protrusion 7
The 80th wheel 52 may be set at an angle such that 3 engages with the cut groove 52a of the 80th wheel 52.

Similarly, the pointer lock mechanism 80 also includes a pointer lock lever 81 that engages with the 87th wheel 61 as shown in FIG. This lever 81 is the 87th wheel 6
The locking portion 82 which is rotatable about a rotary shaft 81a provided between the 1st and 80th wheel 52 and which can be engaged with the teeth of the 87th wheel 61 and the 80th wheel 52. An engaging projection 83 that can be engaged with the cut groove 52a is provided. A spring portion 84 extending from the main body portion of the lever 81 in a substantially U shape is in contact with the locking pin 85.
The engagement portion 82 and the engaging projection 83 are brought into pressure contact with the 87th wheel 61 and the 80th wheel 52 by the action of.

Therefore, when the engaging projection 83 is engaged with the cut groove 52a of the eighty-eight wheel & pinion 52, the locking portion 82 is eighty-seven as shown by the two-dot chain line in FIG. By engaging with the number wheel 61, the rotation of the 87th wheel 61, that is, the rotation of the rewinding wheel train 50b is locked, and the rewinding of the mainspring 1a, that is, the movement of the pointer is stopped.

On the other hand, in the case where the engagement projection 83 is pressed against the outer periphery of the eighteenth wheel 52 other than the cut groove 52a,
As shown by the solid line, the locking portion 82 is also separated from the 87th wheel 61, and the rewinding wheel train 50b can be rotated, that is, the pointer can be moved.

The pointer lock lever 81 is also set so that the engaging projection 83 engages with the notch groove 52a of the watch 80 when the number of turns desired to lock rewinding (stop hand movement) is reached. ing. For example, in the case of the mainspring 1a having the characteristics shown in FIG. 8, the rewinding may be locked at the time of the number of windings B at which the output torque greatly decreases.

In the present embodiment, it is necessary to lock the winding when the winding is completed, that is, when the number of windings is almost "6", and the lock for rewinding (stopping hand movement) is required. , At the time when the mainspring 1a is unwound and the output torque is reduced, that is, the number of turns is close to "0", and between them, the number of turns is "6", that is, the eighteenth wheel 52 rotates nearly 180 degrees. There is a minute difference. Therefore, the levers 71 and 81 are arranged such that the engaging protrusions 73 and 83 are located at positions facing the eighteenth wheel 52 by approximately 180 degrees. Specifically, it is arranged at a position having an angle of about 160 to 180 degrees.

As shown in FIG. 5, the needle setting lock mechanism 90 includes a needle setting lock lever 91 that engages with the hand wheel 35. This lever 91 is integrated with the lever 71 on the base end side, and further engages with the groove 35a formed on the outer periphery of the clutch wheel 35 on the front end side extending along the outer periphery of the square hole wheel 4. The locking portion 92 is formed.

Therefore, when the engaging projection 73 is engaged with the cutout groove 52a of the eighteenth wheel & pinion 52, as shown by the chain double-dashed line in FIG. It is distant from 35 and it is possible to move the clutch wheel 35 to the small iron wheel 36 side,
That is, the needle adjusting mechanism 44 can be operated.

On the other hand, in the case where the engaging projection 73 is pressed against the outer periphery of the eighteenth wheel 52 other than the cut groove 52a, FIG.
As shown by a solid line, the locking portion 92 engages with the clutch wheel 35 to move the clutch wheel 35 to the small wheel & wheel 36 side, that is, to lock the needle adjusting mechanism 44 and pull out the winding stem 31 and the like. The needle alignment operation of is not possible.

Therefore, until the winding is locked by the winding lock lever 71, that is, until the mainspring 1a is sufficiently wound up, the needle alignment lock lever 91 locks the needle alignment mechanism 44 so that the needle alignment operation cannot be performed. There is.

According to this embodiment, the following effects can be obtained.

1) By providing the winding lock mechanism 70, it is possible to prevent the mainspring 1a from being over-tightened. Therefore, it is possible to prevent a very high torque from being applied to the train wheel 13 or the like at the beginning of rewinding due to over-tightening of the mainspring 1a, and to reliably prevent the train wheel 13 or the like from being broken.

2) Further, the winding lock mechanisms 70,
The pointer lock mechanism 80 and the needle alignment lock mechanism 90 are added / subtracted train wheel 50 arranged on the outer peripheral side of the barrel wheel 1 or the ratchet wheel 4.
The space around the barrel wheel 1 can be effectively used, and there is no hindrance to the miniaturization and thinning of the timepiece. In particular, a Mort's cross type winding stop mechanism, which has conventionally been used in a clock (clock) and has a finger fixed to the barrel barrel and a gear called a Mort's cross attached to the barrel barrel, is a barrel barrel 1c and barrel barrel. Since it is necessary to directly attach fingers and gears to the car 1, the thickness of the timepiece becomes thicker, and the degree of freedom in storing parts becomes smaller, which makes design difficult. High, and space can be effectively used. For this reason, even in a watch having a small space for arranging components, it is possible to realize a winding stop (hand movement stop) and a needle alignment lock function when winding and unwinding the mainspring 1a.

3) The hoisting lock lever 71 is the square wheel 4
As a result, the rotation is restricted by engaging with the number 84 wheel 58, which has a smaller torque due to the increased speed, so that the winding can be locked with a smaller force. For this reason,
The strength required for the winding lock lever 71 and the 84th wheel 58 can be reduced, and these parts can be made small and thin.

Similarly, since the pointer lock lever 81 engages with the 87th wheel 61, which has a small torque due to the speed increase with respect to the barrel wheel 1, it regulates the rotation, so that it is smaller. Winding can be locked by force. Therefore, the strength required for the pointer lock lever 81 and the 87th wheel 61 can be reduced, and these parts can be made small and thin.

4) The engaging protrusions 73 of the winding lock lever 71 and the needle setting lock lever 91 and the engaging protrusions 83 of the pointer lock lever 81 are pressed against the eighth wheel & pinion 52 by the action of the spring portions 74 and 84. Therefore, the engaging protrusions 73, 8
3 can be securely engaged with the cut groove 52a, or can be kept in contact with the outer periphery of the 80th wheel 52, and can be stably operated without vibration or the like, and the winding lock mechanism 70 or Pointer lock mechanism 80, needle alignment lock mechanism 90
The reliability of can also be improved.

5) Rotating shaft 71 of winding lock lever 71
Since a is disposed between the forty-eighth wheel & pinion 58 and the forty-eight wheel & pinion 52, each locking portion 72 engaged with each wheel 58, 52 from the rotating shaft 71a, the engaging protrusion. The length up to 73 can be shortened, and the rigidity of the winding lock lever 71 can be improved accordingly.

Similarly, the rotary shaft 8 of the pointer lock lever 81
Since 1a is arranged between the 87th wheel 61 and the 80th wheel 52, each locking portion 82 engaged with each wheel 61, 52 from the rotating shaft 81a, the engaging protrusion. The length up to 83 can be shortened, and the rigidity of the pointer lock lever 81 can be improved accordingly.

Further, since the rotating shaft 71a of the needle setting lock lever 91 is also arranged between the clutch wheel 35 and the 80th wheel 52, the rotating shaft 71a engages with the respective wheels 35, 52. It is possible to shorten the lengths of the respective locking portions 92 and the engaging projections 73, and the rigidity of the needle adjusting lock lever 91 can be improved accordingly.

The fact that the rotating shafts 71a and 81a are arranged between the cars means that the rotating shafts 71a and 81a are located between the centers of rotation of the cars.
This means that the length from the rotation center of each vehicle to each of the rotating shafts 71a and 81a is short.

6) Since the winding-up of the mainspring 1a can be locked at a predetermined number of windings, the output torque at the start of rewinding the mainspring 1a does not become significantly large, and the output torque can be kept substantially constant. For this reason, when the rotor 12 rises immediately after needle matching, the time until the control circuit starts driving and becomes controllable can be predicted with high accuracy. Therefore, even if the rotation control circuit is stopped when the hand setting operation is performed after the winding lock, the correction can be performed with high accuracy while the control circuit is stopped, and the time indication in the electronically controlled mechanical timepiece is shown. The accuracy can be further improved.

7) Further, since there is no remarkably high output torque, it is possible to limit the speed regulating brake range, that is, the controlled torque. Therefore, the accuracy during speed adjustment can be further improved, the time indication accuracy can be further improved, and unnecessary brake control such as when an extremely high output torque is applied is unnecessary. , The duration of the clock by the mainspring 1a can be lengthened.

8) Since the addition / subtraction train wheel 50 capable of adding and subtracting the hoisting torque and the unwinding torque to be added and subtracted to provide one output is provided with the power reserve hand 51 in the eighties wheel 52. The power reserve, that is, the remaining time of the clock can also be displayed.

9) Since the pointer lock mechanism 80 is provided, the output torque of the mainspring 1a decreases, and the generator 20 cannot obtain the amount of power generation capable of driving the control circuit in the electronically controlled mechanical timepiece, so that the hand movement control can be performed. When it disappears (free running state), the train wheel 13, that is, the hands can be forcibly stopped, and it is possible to prevent erroneous display of the time.

When the output torque decreases and the pointer locking mechanism 80 operates, the barrel gear 1b also stops and the hour hand, minute hand,
Since the second hand also stops, the user of the timepiece can be made to clearly recognize that the output torque is reduced and the operation is abnormal, and the user can be surely prevented from erroneously recognizing the time.

10) Since the pointer lock mechanism 80 can prevent the mainspring 1a from winding back below the required number of windings,
Wasteful winding (between the number of windings 0 to B in FIG. 8) at the time of winding can be eliminated, and the winding operation can be shortened.

11) By providing a needle alignment lock mechanism 90,
Since the hands cannot be adjusted until the mainspring 1a has been sufficiently wound up, the time from the time the hands are adjusted to the time the watch stops again can be maximized, making the electronically controlled machine easy to use. A clock can be provided.

12) Further, since the needle alignment lock mechanism 90 is provided, when the output torque of the mainspring 1a is lowered and the electronically controlled mechanical timepiece is stopped, the needle alignment can be performed until the mainspring 1a is sufficiently wound. It is possible to secure a sufficiently long system down time until such a situation occurs.
At this time, while the mainspring 1a is being wound by hand, the generator 20 is also operated intermittently due to the output from the mainspring 1a. Therefore, if the time until the mainspring 1a is wound is long, the generator 20 The charging unit such as a capacitor can be brought to a higher voltage state. Therefore, in order to perform the needle matching operation, each needle is stopped, that is, the generator 20
It is possible to lengthen the time that the system can be driven by the capacitor when the motor is stopped, and if the needle alignment operation can be completed in the normal time, drive the system until the generator 20 starts operating. Can be maintained.

Therefore, the system can be controlled immediately after the hands are aligned, and the movement of the hands can be controlled with extremely high accuracy.

Further, if the needle alignment work is completed within a predetermined time, a certain amount of electric power is left in the capacitor. Therefore, when the needle alignment work is completed and the generator 20 is operated, it is quicker than in the conventional case. Since the capacitor can be charged and the time lag until the control circuit is driven can be shortened, the time control error is reduced, and more accurate needle alignment work can be performed.

13) Since the lock mechanisms 70 and 90 are automatically operated in association with the winding operation of the mainspring 1a, the lock mechanisms 70 and 90 can be operated without the operator's awareness and the operability is further improved. be able to. Similarly, since the pointer lock mechanism 80 automatically operates according to the number of windings of the mainspring 1a, the operator is not burdened at all and the operability is not deteriorated.

14) Lever 7 of each lock mechanism 70, 90
Since 1 and 91 are integrated, the number of parts can be reduced and the cost can be reduced.

15) Since the needle alignment lock mechanism 90 locks the needle alignment mechanism 44 inoperable by engaging the needle wheel 35 with the needle alignment lock lever 91, the user can lock the crown (winding stem 31). Since the operation of pulling the needle is also locked, it is possible for the user to clearly understand that the needle adjusting mechanism 44 is in the locked state, and an intuitive operation can be performed to improve operability.

The present invention is not limited to the above-described embodiments, but includes modifications and improvements as long as the object of the present invention can be achieved.

For example, in the above embodiment, the winding lock mechanism 70, the pointer lock mechanism 80, the needle alignment lock mechanism 9 are used.
Although there were three types of lock mechanisms of 0, for example, as shown in FIG.
7, the needle alignment lock mechanism 90 alone may be provided, or, as shown in FIG. 7, only the winding lock mechanism 70 and the needle alignment lock mechanism 90 may be provided. Further, although not shown, only the pointer lock mechanism 80 and the needle alignment lock mechanism 90 may be provided. In short, the timepiece of the present invention only needs to be provided with at least the hand setting lock mechanism 90.

Further, in the above embodiment, the levers 71 of the winding lock mechanism 70 and the needle alignment lock mechanism 90,
Although 91 is integrated, these may be separated.
Further, when the levers 71 and 91 are separately provided, the engaging protrusions 73 and 93 of the levers 71 and 91 are not attached to the 80th wheel 5.
By changing the position that engages with the second cut groove 52a,
The operation timing of each lever 71, 91 may be different. For example, in the above-described embodiment, the winding lock lever 7
Until the winding was locked with 1, the needle alignment operation was disabled. However, if the mainspring 1a has a predetermined number of windings or more, the needle alignment operation is set even before the winding is locked. May be.

Further, the concrete structure of the addition / subtraction train wheel 50 is not limited to that of the above-mentioned embodiment, but by incorporating a planetary mechanism or the like, input from the square hole wheel 4 at the time of winding and at the time of rewinding. Addition and subtraction from the input from barrel barrel 1
Anything that can be output to.

Further, the pointer lock mechanism 80 is not limited to the one using the addition / subtraction train wheel 50, but the mainspring 1
It is only necessary to adopt a configuration in which the number of turns of "a" can be detected and the rewinding of the mainspring 1a can be locked when the number of turns falls below a predetermined number.

In the above embodiment, the winding lock mechanism 70 is used.
Although the 84th wheel 58 is locked by engaging the hoisting lock lever 71, the vehicle engaging the lever 71 may be another vehicle provided in the hoisting unit 30 or the hoisting wheel train 50a. However, it is preferable that the lever 71 is engaged with a vehicle having a torque smaller than that of the ratchet wheel 4.

Similarly, in the pointer lock mechanism 80 as well,
Not limited to the case where the 87th wheel 61 is stopped, either one of the rewinding wheel train 50b and the train wheel 13 to the generator 20 may be stopped. However, it is preferable that the lever 81 is engaged with a car having a smaller torque than the barrel wheel 1.

Further, in each of the lock mechanisms 70 and 80, the locking portions 72 and 82 of the levers 71 and 81 are locked by engaging with the gears.
You may employ | adopt the lock mechanism which presses the outer periphery of 0 car and applies a brake by the frictional force.

Further, as the needle alignment lock mechanism 90,
As in the above-described embodiment, it is not limited to the handwheel 35 that is immovably locked and the winding stem 31 cannot be operated. For example, the winding stem 31 can be pulled out and operated, but the small iron wheel 36. It is also possible to separate the parts of the needle matching mechanism such as the above to disable the needle matching. In this case, since the external operation member itself such as the crown (winding stem 31) can be operated,
When the user tries to operate the external operation member by force, such as when the operation of the external operation member itself is locked, there is no possibility that a large force is applied to the external operation member, and an excessive force is applied to the external operation member. There is an advantage that can be prevented.

Further, in the above-described embodiment, the notch groove 52a is formed in the eighteenth wheel & pinion 52 as the engaging portion for operation, but a convex portion is formed on the outer periphery of the eighteenth wheel & pinion 52 to engage in operation. It may be part. In short, the actuating engagement portion functions as each lever 7 at a predetermined timing as the eighties wheel 52 rotates.
It suffices that it is formed so that 1, 81 and 91 are actuated.

The present invention is not limited to the electronically controlled mechanical timepiece,
It may be applied to a mechanical timepiece including an escape wheel, pallet fork, balance wheel and the like.

The winding part for winding the mainspring 1a is not limited to manual winding, but an automatic winding device using a rotary weight may be used. As the barrel wheel, a barrel wheel in which a slip mechanism operates at the time of winding for automatic winding may be used.

Further, in order to identify ON / OFF of the winding lock state by the IC, a winding lock lever 71 and another lever actuated corresponding to the winding lock state are provided, and the switch is turned on by the operation of this lever. For example, a signal may be given to the IC in response to the winding lock state. According to this structure, since the winding lock state can be recognized on the IC, the IC can determine whether the mainspring torque is high or low. Therefore, the IC that outputs a pulse for rate measurement for confirming the accuracy of circuits that require power consumption other than normal control only when the mainspring torque is high, the power generation capacity is high, and the capacitor voltage is also high. It can also be realized by

[0107]

As described above, according to the timepiece and the timepiece hand alignment control method of the present invention, when the mainspring has a predetermined number of turns or less, that is, unless the number of turns exceeds the predetermined number of turns.
Since the hand setting operation cannot be performed, it is possible to extend the time duration of the timepiece after the hand setting operation and prevent the time indication accuracy from deteriorating.

[Brief description of drawings]

FIG. 1 is a plan view showing an electronically controlled mechanical timepiece according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a main part of FIG.

FIG. 3 is a cross-sectional view showing a main part of FIG.

FIG. 4 is a cross-sectional view showing a main part of FIG.

FIG. 5 is a schematic view showing a main part of each lock mechanism of the embodiment.

FIG. 6 is a plan view showing an electronically controlled mechanical timepiece according to a modification of the invention.

FIG. 7 is a plan view showing an electronically controlled mechanical timepiece according to another modification of the present invention.

FIG. 8 is a diagram showing characteristics of a mainspring.

[Explanation of symbols]

1 barrel car 1a Spring 1b barrel barrel 1c Makoto Shin 4 square hole car 13 trains 20 generator 30 winding section 31 Makima 35 car 36 small iron car 44 Needle alignment mechanism 50 Addition / subtraction train wheel 50a winding train 50b Rewind train wheel 52 No. 80 car for addition and subtraction 52a Notch groove 70 Winding lock mechanism 71a rotation axis 71 Winding lock lever 72 Locking part 73 Engagement protrusion 74 Spring part 80 Pointer lock mechanism 81a rotation axis 81 Pointer lock lever 82 Locking part 83 Engagement protrusion 84 Spring part 90 Needle alignment lock mechanism 91 Needle alignment lock lever 92 Locking part

─────────────────────────────────────────────────── ─── Continued Front Page (58) Fields surveyed (Int.Cl. ⁷ , DB name) G04B 1/00-9/00 G04B 17/00 G04B 27/00 G04C 10/00

Claims (14)

(57) [Claims] 1. A timepiece in which a pointer connected to the train wheel is moved by mechanical energy of the mainspring transmitted through the train wheel, a winding portion for accumulating energy in the mainspring, and a winding amount of the mainspring. The wheel train for addition and subtraction for adding and subtracting the rewinding amount and the addition and subtraction wheel train, the addition and subtraction vehicle to which the torque obtained by adding and subtracting the winding amount and the rewinding amount is transmitted in the addition and subtraction wheel train, and the hand setting mechanism of the timepiece. A timepiece having a needle setting lock mechanism that locks the hand setting mechanism inoperable when the mainspring has a predetermined number of turns or less and is operated in association with the rotation of the addition / subtraction vehicle. 2. The timepiece according to claim 1, wherein the needle alignment lock mechanism is configured to engage with a component that constitutes the needle alignment mechanism and stop the movement of the component. Watch characterized by. 3. The timepiece according to claim 2, wherein the needle alignment lock mechanism has a locking portion that can be engaged with the needle alignment mechanism component, and stops movement of the needle alignment mechanism component. A watch characterized by being configured with a lever. 4. The timepiece according to claim 3, wherein an operating engagement portion is formed on the outer periphery of the addition / subtraction vehicle, the needle adjusting lock lever is pressed against the addition / subtraction vehicle, and the addition / subtraction wheel is added. An engaging protrusion that can be engaged is formed in the operating engagement portion of the vehicle, and when the engaging protrusion is not engaged in the operating engagement portion of the addition / subtraction vehicle, the locking portion is A timepiece characterized in that the timepiece is configured to be engaged with the hand-setting mechanism component to stop the movement of the hand-setting mechanism component. 5. The timepiece according to claim 3 or 4, wherein the center of rotation of the needle alignment lock lever is between the needle alignment mechanism component with which the locking portion is engaged and the addition / subtraction vehicle. A clock characterized by being placed. 6. The timepiece according to any one of claims 1 to 5, wherein the needle-matching lock mechanism engages with a component of the needle-matching mechanism to disconnect a part of the component of the needle-matching mechanism. The timepiece is configured to lock the hand setting mechanism in an inoperable state. 7. The timepiece according to claim 6, wherein the hand-adjusting mechanism is, as a hand-adjusting mechanism part, a winding stem that is movable in the axial direction, and moves forward and backward with the movement of the winding stem to move to an iron wheel. A needle wheel that can be engaged, and the needle-matching lock mechanism locks the needle-matching mechanism inoperable by stopping the forward / backward movement of the ratchet wheel and releasing the meshing with the small iron wheel. A watch characterized by being configured. 8. The timepiece according to any one of claims 1 to 7, wherein when the mainspring is wound more than a predetermined number of times, the mainspring is operated in association with the rotation of the addition / subtraction vehicle and the addition / subtraction wheel is rotated. A timepiece comprising: a winding wheel train to which torque during winding is transmitted in the train; and a winding lock mechanism for locking the winding portion to stop winding of the mainspring. 9. The timepiece according to any one of claims 1 to 8, wherein when the mainspring is rewound below a predetermined number of turns, the timepiece is operated in association with the rotation of the addition / subtraction vehicle to perform the addition / subtraction. A timepiece characterized by comprising a rewinding wheel train to which torque at the time of rewinding is transmitted in the train wheel and a pointer lock mechanism for locking the wheel train to which the pointer is coupled to stop the movement of the pointer. 10. The timepiece according to any one of claims 1 to 9, wherein the generator converts mechanical energy of the mainspring transmitted through the train wheel into electric energy, and is driven by the converted electric energy. An electronically controlled mechanical timepiece including a rotation control means for controlling the rotation cycle of the generator. 11. A mainspring, a generator for converting mechanical energy of the mainspring transmitted through a train wheel into electric energy, a pointer connected to the train wheel, and the driven by the converted electric energy. An electronically controlled timepiece having a rotation control means for controlling a rotation cycle of a generator, comprising a timepiece hand-adjusting mechanism, and locks the hand-measuring mechanism inoperable when the mainspring has a predetermined number of turns or less. A timepiece having a hand setting lock mechanism. 12. The timepiece according to claim 11, further comprising a winding portion for storing energy in the mainspring.
A timepiece comprising a winding lock mechanism that locks the winding portion to stop winding of the mainspring when the mainspring is wound more than a predetermined number of times. 13. The timepiece according to claim 11 or 12, wherein a winding portion for storing energy in the mainspring and a torque from the mainspring when the mainspring is rewound to a predetermined number or less. And a pointer lock mechanism for stopping the movement of the pointer by locking the train wheel that transmits the power to the generator side. 14. A mainspring, a generator for converting mechanical energy of the mainspring transmitted through a train wheel into electric energy, a pointer coupled to the train wheel, and a drive driven by the converted electric energy. A method for adjusting the hands of a timepiece, which comprises a rotation control means for controlling the rotation cycle of a generator and a hand-setting mechanism of the timepiece, wherein when the mainspring has a predetermined number of turns or less, A method for controlling time setting of a timepiece, which locks a mechanism inoperable to disable a time setting operation.