JPH11304952A - Clock and clock hand adjustment control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a clock for extending the continuation time of a clock after the operation of the adjustment of clock hands and at the same time preventing the deterioration of time indication accuracy. SOLUTION: A clock moves clock hands with the mechanical energy of a spring being transferred via a wheel train 13 and is provided with a traction part 30 for accumulating energy in the spring, a wheel train 50 for performing the addition and subtraction of the amount of traction and the amount of rewinding of the spring, a wheel 52 for addition and subtraction where an added or subtracted torque can be transferred, and a mechanism 44 for adjusting clock hands. Further, the clock is provided with a locking mechanism 90 for adjusting clock hands that is operated in conjunction with the rotation of the wheel 52 for addition/subtraction and locks the mechanism 44 for adjusting clock hands to operation disable state. Since the clock hands cannot be adjusted until the spring can be fully rewound, the continuation of the clock after the operation for adjusting clock hands can be extended.

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 method for controlling the hand setting of the timepiece, and more particularly to a mechanical timepiece having a mainspring and a balance, and converting mechanical energy output when the mainspring is released into electric energy by a generator. By operating the rotation control means with the electric energy to control the rotation period of the generator, the present invention can be used for an electronically controlled mechanical timepiece that accurately moves a pointer fixed to a wheel train.

[0002]

2. Description of the Related Art Conventionally, there has been known a mechanical timepiece that moves a hand using mechanical energy of a mainspring.

In recent years, as described in Japanese Patent Application Laid-Open No. H8-5758, 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. By controlling the value of the current flowing through the coil of the generator in such a manner, an electronically controlled mechanical timepiece that displays the time accurately by accurately moving the hands fixed to the wheel train is also widely used.

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 B). Have.

When the output torque of the mainspring is reduced, the operation of the hand is delayed or stopped, so that it is necessary to wind the mainspring and perform a needle adjusting operation to set the hands at the correct time. This hand adjusting operation is performed, for example, by pulling out the crown (winding stem) to make the hands adjustable, and turning the crown to rotate the hour hand and the minute hand. Conventionally, this needle adjusting operation can always be performed regardless of the state of the mainspring.

[0006]

This needle setting operation is
Usually, from the state where the mainspring is released and the needle stops, or the state where the needle is turning very slowly, the mainspring is wound up and the needle starts to move as usual, and then the crown is pulled out to stop the needle.

At this time, even when the winding amount of the mainspring is small, for example, when the winding number slightly exceeds the winding number B shown in FIG. 8, the needle starts to move normally, so that the needle adjusting operation is performed in that state. May be performed. In this case, there is a problem that the duration from when the needle adjustment operation is performed to when the winding number of the mainspring again falls below the winding number B 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 wound up and stopped, and the generator is not operated and electric energy is not stored in the capacitor, the needle adjustment operation is performed by slightly winding up the mainspring. The needle adjustment operation is performed in a state where the battery is not sufficiently charged.

At the time of the hand setting operation, the handwheel, that is, the wheel train is stopped, so that the generator is also stopped, and no power is generated. For this reason, all of the electric energy charged in the capacitor during the hand setting operation is discharged to the control circuit means, and even if the hand setting operation is performed, the control circuit means stops and accurate hand movement control is performed. As a result, there is a problem that the accuracy of the time indication is lowered even immediately after the hand adjusting operation.

A first object of the present invention is to provide a timepiece that can increase 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 method for controlling the time setting of the timepiece which can prevent a decrease in the accuracy of time indication.

[0013]

According to a first aspect of the present invention, there is provided a timepiece in which a hand connected to the wheel train is driven by mechanical energy of the spring transmitted through the wheel train. A winding unit for accumulating energy in the mainspring, an addition and subtraction wheel train for adding and subtracting the winding amount and the rewind amount of the mainspring, and a torque obtained by adding and subtracting the winding amount and the rewind amount in the addition and subtraction wheel train are transmitted. And a hand adjusting mechanism for a timepiece. When the mainspring has a predetermined number of turns or less, it is operated in conjunction with the rotation of the adding / subtracting car to lock the hand adjusting mechanism inoperable. And a needle adjustment lock mechanism that performs the adjustment.

According to the present invention, the amount of winding and rewinding of the mainspring is detected by using the addition / subtraction wheel train, and the hand setting lock mechanism is operated in conjunction with the rotation of the addition / subtraction vehicle to which the torque is transmitted. In this way, if the mainspring is less than the predetermined number of turns, that is, the hand cannot be set until the mainspring is fully wound, the duration from when the hand is set to when the watch stops again can be lengthened. , It can be a user-friendly watch.

At this time, since the addition / subtraction wheel train is constituted by a plurality of gears, the vehicle for addition / subtraction can be arranged in the space around the barrel car through the wheel train. For this reason, even in the case of a watch having a small component arrangement space, the addition and subtraction wheel train and the like can be sufficiently arranged, and the hand can be locked in the watch.

Here, it is preferable that the needle adjusting lock mechanism is configured to engage with a component constituting the needle adjusting mechanism to stop the movement of the needle adjusting mechanism component.

A timepiece is usually provided with a component that constitutes a hand adjusting mechanism that is made operable by pulling a crown. Therefore, when the movement of the needle adjusting mechanism component is stopped, the operation itself of pulling the crown is locked, so that the needle adjusting operation can be locked so that the needle adjusting operation cannot be performed, and the needle adjusting mechanism is locked by the user. Can be clearly understood.

At this time, the needle adjusting lock mechanism has a locking portion engageable with the needle adjusting mechanism component, and includes a needle adjusting lock lever for stopping the movement of the needle adjusting mechanism component. Is preferred.

Further, an actuating engagement portion composed of a concave groove, a convex portion, or the like is formed on the outer periphery of the addition / subtraction wheel, and the hand 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 when the engagement projection is not engaged in the operation engagement portion of the addition / subtraction vehicle, the locking is performed. It is preferable that the portion is configured to engage with the needle adjusting mechanism component to stop the movement of the needle adjusting mechanism component.

When the engaging projection of the needle adjusting lock lever is pressed against the addition / subtraction wheel, the engagement projection is securely engaged with the operating engagement portion such as a notch groove or the outer periphery of the addition / subtraction vehicle. It can be kept in contact, does not generate vibration, can be operated stably, and the reliability of the needle alignment lock mechanism can be improved.

In this case, it is preferable that the center of rotation of the needle adjusting lock lever is disposed between a needle adjusting mechanism component with which the locking portion is engaged and an addition / subtraction wheel. In this case, since the length from the rotation center to the needle adjusting mechanism component can be reduced, the rigidity of the needle adjusting lock lever can be improved accordingly.

The needle adjusting mechanism is configured to lock the needle adjusting mechanism in an inoperable state by engaging a part of the needle adjusting mechanism and cutting off a part of the part of the needle adjusting mechanism. It may be.

In this case, since the needle adjusting mechanism is made inoperable by cutting off a part of the needle adjusting mechanism parts, the needle adjusting operation itself such as pulling out and turning the external operating member such as a crown can be performed. For this reason, when locking the operation of the external operation member itself, a user may try to operate the external operation member forcibly and a large force may be applied to the external operation member. In this case, since the external operation member itself can be operated, it is possible to prevent an excessive force from being applied.

For example, the needle adjusting mechanism includes, as needle adjusting mechanism parts, a winding stem that can be moved in the axial direction, and a hook wheel that can move forward and backward with the movement of the winding stem and mesh with a small iron wheel. When the needle adjustment lock mechanism is in operation, the needle adjustment mechanism cannot be operated by stopping the advance and retreat movement of the stroller, releasing the engagement with the small wheelwheel, and cutting off a part of the needle adjustment mechanism parts. What is necessary is just to comprise so that it may be locked.

With this configuration, the needle adjustment mechanism can be locked only by providing the needle adjustment lock mechanism that can be engaged with the ratchet wheel, and the configuration of the needle adjustment lock mechanism can be simplified, and the components can be simplified. Points can be reduced and costs can be reduced.

Further, the timepiece according to the present invention is operated in conjunction with the rotation of the vehicle for addition and subtraction when the mainspring is wound up to a predetermined number of turns or more, so that the torque during winding in the addition and subtraction wheel train is increased. And a hoist lock mechanism that locks the hoist and the hoist to stop the hoisting of the mainspring.

If the winding lock mechanism is provided, the winding is stopped when the mainspring has reached a predetermined number of turns, thereby preventing the mainspring from being overwound.

Further, the timepiece according to the present invention is operated in conjunction with the rotation of the vehicle for addition and subtraction when the mainspring is rewound to a predetermined number of turns or less, so that the timepiece is rewinded in the train for addition and subtraction. May be provided with a hand lock mechanism that locks the rewinding train to which the torque is transmitted and the train to which the hands are coupled to stop the movement of the hands.

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

Further, the timepiece has a generator for converting mechanical energy of the mainspring transmitted through the wheel train into electric energy, and is driven by the converted electric energy to control a rotation cycle of the generator. An electronically controlled mechanical timepiece having a rotation control means is preferred.

The timepiece according to claim 11 of the present invention is a timepiece, a generator for converting mechanical energy of the mainspring transmitted through the wheel train into electric energy, and a pointer coupled to the wheel train. And an electronically controlled timepiece comprising: a rotation control means driven by the converted electric energy to control the rotation cycle of the generator. A needle adjusting lock mechanism for locking the needle adjusting mechanism inoperable.

In the present invention, since a needle adjusting lock mechanism is provided and the needle cannot be adjusted until the mainspring is sufficiently wound, a charged portion such as a capacitor is set to a higher voltage state. Needle adjustment operation can be performed. For this reason, when returning from the hand setting operation, the driving of the system can be maintained by the condenser, and the hand movement control can be performed with very high accuracy.

In this electronically controlled mechanical timepiece,
When the mainspring has been wound up to a predetermined number of turns or more, a winding-up lock mechanism may be provided to lock the winding section and stop the winding of the mainspring.

If the winding lock mechanism is provided, it is possible to prevent the mainspring from being excessively tightened, and the output torque at the start of rewinding does not increase significantly, and the output torque can be kept substantially constant. For this reason, when the rotor starts up immediately after the needle adjustment, it is possible to accurately predict the time from when the control circuit starts to be driven until the control can be performed, and when the needle adjustment operation is performed after the winding lock, the rotation control circuit is used. When the control is stopped, the correction while the control circuit is stopped can be performed with high accuracy, and the time indication accuracy in the electronically controlled mechanical timepiece can be further improved.

In this electronically controlled mechanical timepiece,
When the mainspring is rewound to a predetermined number of turns or less, a hand lock mechanism for locking the wheel train transmitting the torque from the mainspring to the generator side and stopping the movement of the hands may be provided.

If a hand lock mechanism is provided, the train wheel, that is, the hand can be forcibly stopped when the output torque of the mainspring decreases and accurate hand movement cannot be performed, and the time is erroneously displayed. Can be prevented.

According to a fourteenth aspect of the present invention, there is provided a mainspring, a generator for converting mechanical energy of the mainspring transmitted through the wheel train into electric energy, a pointer coupled to the wheel train, A time adjustment mechanism for controlling the rotation cycle of the generator driven by the applied electric energy, and a time adjustment mechanism for the timepiece, wherein the timepiece has a predetermined number of turns or less. The needle adjusting mechanism is locked to be inoperable by a needle adjusting lock mechanism to disable the needle adjusting operation.

The present invention also has a needle adjustment lock mechanism, which cannot perform needle adjustment until the mainspring is sufficiently wound, so that a charged part such as a capacitor is set to a higher voltage state. Needle adjustment operation can be performed. For this reason, when returning from the hand setting operation, the driving of the system can be maintained by the condenser, and the hand movement control can be performed with very high accuracy.

[0039]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One 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 the present embodiment, and FIGS.
Is a cross-sectional view of the main part.

1 to 4, the electronically controlled mechanical timepiece includes a barrel wheel 1 composed of a mainspring 1a, a barrel gear 1b, a barrel barrel 1c, and a barrel lid 1d. Mainspring 1a
The outer end is fixed to the barrel gear 1b, and the inner end is fixed to the barrel barrel 1c. The barrel barrel 1c is supported by the main plate 2 and rotates integrally with the square wheel 4.

The square wheel 4 is engaged with the hazel 3 so as to rotate clockwise but not counterclockwise. The square wheel 4 is operated by operating a winding stem 31 connected to a crown (not shown), so that a wheel 32, a round wheel 33,
It is configured to rotate through the square hole intermediate wheel 34, rotate the barrel barrel 1c, and wind up the mainspring 1a. Accordingly, the winding stem 31, the center wheel 32, the round wheel 33, the square hole intermediate wheel 34, and the square wheel 4 constitute a winding unit 30 that accumulates energy in the mainspring 1 a.

As shown in FIG. 3, the rotation of the barrel gear 1b is transmitted to the second wheel & pinion 6, then increased in speed to the third wheel & pinion 7,
The speed is increased from the third wheel & pinion 7 to the second hand wheel 8 and the fourth wheel & pinion 9 and further sequentially from the fourth wheel & pinion 9 and transmitted to the fifth wheel & pinion 10, the sixth wheel & pinion 11 and the rotor 12. The second wheel 6 has a cylinder pinion 6a.
, A minute hand (not shown) is fixed, and a second hand is fixed to the second hand wheel 8. In addition, the minute wheel 38a is provided in the cylindrical pinion 6a.
The hour wheel 6b is connected via an hour wheel, and the hour hand is fixed to the hour wheel 6b.

Each of the vehicles 6 to 11 and the rotor 12
It is supported by the train wheel bridge 14 and the second bridge 15 and the main plate 2.
A wheel train 13 for transmitting the mechanical energy of the mainspring 1a to the hands (hour hand, minute hand, second hand) is constituted by each of the wheels 6 to 11.

As shown in FIG. 1, the electronically controlled mechanical timepiece includes 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 inertial disk 1.
2c. Among them, the rotor inertia disk 12c
Is for reducing fluctuations in the rotation speed of the rotor 12 with respect to fluctuations in the driving torque from the barrel car 1.

Each of the coil blocks 21 and 22 is
And a coil 24 wound therearound. Each core 23 includes a core stator portion 23a disposed 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,
The voltage is boosted and rectified through a rectifier circuit such as a transistor rectifier, charged into a smoothing capacitor, and a rotation control circuit (rotation control means) (not shown) for controlling the rotation of the generator 20 with the power from the capacitor is operated. In addition,
The rotation control circuit is constituted by 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 unit, and the like, and a quartz oscillator is used for the oscillation circuit.

To adjust the minute hand and the hour hand, the crown is pulled out, the winding stem 31 is moved in the axial direction, and the stop wheel 35 is moved by the action of the setting lever 40, the click spring 41 and the latch 42 to the small iron wheel 36. This operation is performed by rotating the pinion wheel 6a and the hour wheel 6b from the small iron wheel 36 via the minute minute wheel 37 and the minute minute wheel 38. Accordingly, the crown, the Makinshin 31, the wheelwheel 35, the small iron wheel 36, the intermediate minute wheel 37, the minute wheel 38,
A needle adjusting mechanism 44 is constituted by the setting lever 40, the click spring 41, and the latch 42.

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

The addition / subtraction wheel train 50 is provided with a power reserve needle 5
An eightiest wheel 52 having a fixed number 1, a power reserve wheel 53 fixed to the shaft of the eightiest wheel 52, a first planetary wheel 54 a meshing with the power reserve wheel 53, and the planetary wheels 54 a An eighty first wheel 54 having a second planetary wheel 54b integrated with the second planetary wheel 54b; a planetary intermediate wheel 55 meshing with the second planetary wheel 54b of the eighty first wheel 54;
The 82nd wheel 56 and the 82nd wheel 5
The 83rd wheel 57 which meshes with 6, the 84th wheel 58 which meshes with the 83rd wheel 57, and the 80th wheel 5 which is the planetary car
The eighty-fifth wheel 59 as a solar car with 4 attached,
The 86th wheel 60 meshing with the 85th wheel 59, the 87th wheel 61 meshing with the 86th wheel 60, and the 87th wheel 6
And an eighty-eighth wheel 62 that meshes with the first wheel.

The eighty-eighth wheel 58 is meshed with the square wheel 4, and the eighty-eighth wheel 62 is meshed with the barrel gear 1 b of the barrel wheel 1.

Therefore, when the square wheel 4 is rotated by the winding operation of the mainspring 1a, the torque is sequentially reduced from the 84th wheel 58 and the 83rd wheel 57, the 82nd wheel 56, and the The power is transmitted to the car 54. Here, when winding the mainspring 1a, the barrel gear 1b is slow in rotation and almost stopped, so that the eighty-eighth wheel 62 to the eighty-fifth wheel 59 are fixed and transmitted to the eighty first wheel 54. The torque is transmitted to the power reserve wheel 53, the 80th wheel 52, and the power reserve hand 51.

On the other hand, when the mainspring 1a is rewound, since the square wheel 4 is stopped, the eighty-eighth wheel 58 to the planetary intermediate wheel 55 are also stopped. When the barrel gear 1b is rotated, the torque is sequentially reduced from the 88th wheel 62 to the 87th wheel 61, the 86th wheel 60, the 85th wheel 59
Is transmitted to At this time, since the planetary intermediate wheel 55 with which the eighty-first wheel 54 is engaged is stopped, the eighty-first wheel 54 revolves while rotating around the planetary intermediate wheel 55. As a result, the power reserve wheel 53 meshing with the 80th wheel 54 also rotates in the reverse direction to the direction of the winding operation of the mainspring 1a, and the 80th wheel 52 and the power reserve needle 51 also rotate in the reverse direction. It is supposed to be.

In this embodiment, since the reduction ratio is set to 1/12 from the barrel wheel 1 (square 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.

Accordingly, in the addition / subtraction wheel train 50, the 84th wheel 58, the 83rd wheel 57, and the 82nd wheel 56 transmitting the torque from the square wheel 4 to the 80th wheel 52. , Planet Intermediate Wheel 5
5, an 80th wheel 54 and a power reserve wheel 53 constitute a hoisting wheel train 50a and transmit the torque from the barrel gear 1b to the 80th wheel 52. 61, 86th car 60, 85th car 59, 80th car 5
4. The rewind wheel train 50b is constituted by the power reserve wheel 53.

When the square wheel 4 rotates, a torque corresponding to the amount of winding of the mainspring 1a is transmitted to the 80th wheel 52 and added as rotation in a predetermined direction.
Is unwound and the barrel gear 1b rotates, the mainspring 1a
Is transmitted, and is subtracted as rotation in the opposite direction. Therefore, the 80th wheel 52 constitutes an addition / subtraction vehicle.

As shown in FIG. 5, the eighteenth wheel 52 is formed in a disk shape having no teeth formed on the outer periphery. Is formed along the notch 52a.

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

The hoisting lock mechanism 70 has an eighty-fourth wheel 58
And a take-up lock lever 71 that engages with the lever. This lever 71 is rotatable around a rotation shaft 71 a provided between the eighty-eighth wheel 58 and the eighty-eighth wheel 52,
A locking portion 72 that can be engaged with the teeth of the eighty-eighth wheel & pinion 58 and an engaging protrusion 73 that can be engaged with the cut groove 52a of the eighty-second wheel & pinion 52 are provided. Then, approximately U
A spring portion 74 extending in the shape of a letter is in contact with the locking pin 75, and the action of the spring portion 74 causes the engagement projection 7 to move.
3 is pressed against the 80th wheel 52. For this reason, when the engagement projection 73 is engaged with the cut groove 52a of the 80th & pinion 52, as shown by a two-dot chain line in FIG.
The locking portion 72 is engaged with the eighty-fourth wheel 58 and
, That is, the hoisting wheel train 50a, the hour wheel 4, and the hoisting portion 30 are locked or stopped, and the mainspring 1 is rotated.
The winding of a is stopped.

On the other hand, when the engaging projection 73 is in pressure contact with the outer periphery of the 80th wheel 52 other than the cut groove 52a, FIG.
As shown by a solid line, the locking portion 72 is also separated from the eighty-fourth wheel 58, so that the hoisting wheel train 50a can be rotated and the mainspring 1a can be hoisted.

As described above, the 80th wheel 52 is set to rotate by 180 degrees when the number of turns of the mainspring 1a becomes 6, that is, while the square wheel 4 rotates six times. For this reason, when the number of windings for which winding is desired to be locked (for example, the number of windings A before the output torque greatly changes in the case of the mainspring 1a having the characteristics shown in FIG.
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 has a pointer lock lever 81 that engages with the 87th wheel 61 as shown in FIG. This lever 81 is the 87th wheel 6
A locking portion 82 rotatable about a rotation shaft 81 a provided between the first and eighth wheel 52 and capable of engaging with the teeth of the 87-second wheel 61; And an engaging projection 83 which can be engaged with the cut groove 52a. A spring portion 84 extending in a substantially U-shape from the main body of the lever 81 is in contact with the locking pin 85, and this spring portion 84
The locking 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.

For this reason, when the engaging projection 83 is engaged with the cut groove 52a of the eighty-three wheel & pinion 52, as shown by a two-dot chain line in FIG. The rotation of the 87th wheel 61, that is, the rotation of the rewinding train 50b is locked by engaging with the count wheel 61, and the rewinding of the mainspring 1a, that is, the movement of the hands of the hands is stopped.

On the other hand, when the engaging projection 83 is in pressure contact with the outer periphery of the 80th wheel & pinion 52 other than the cut groove 52a, FIG.
As shown by a solid line, the locking portion 82 is also separated from the 87th wheel 61, and the rotation of the rewinding train 50b, that is, the movement of the hands can be performed.

It should be noted that the pointer lock lever 81 is also set so that the engaging projection 83 engages with the notch groove 52a of the eighteenth wheel & pinion 52 when the number of turns to lock the rewinding (stop the hand operation) 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 when the number of turns B at which the output torque is greatly reduced.

In the present embodiment, it is necessary to lock the winding when the winding is completed, that is, when the number of windings is substantially "6". The time when the output torque is reduced due to the release of the mainspring 1a, that is, the number of turns is almost approaching "0". There is a minute difference. Accordingly, each of the levers 71 and 81 is arranged such that each of the engagement protrusions 73 and 83 is located at a position substantially 180 degrees opposite to the 80th wheel & pinion 52. Specifically, it is arranged at a position having an angle of about 160 to 180 degrees.

The needle adjusting lock mechanism 90 includes a needle adjusting lock lever 91 which engages with the pinwheel 35 as shown in FIG. The lever 91 has a base end integrated with the lever 71, and can be engaged with a groove 35 a formed on the outer periphery of the pinwheel 35 on the distal end extending along the outer periphery of the square wheel 4. An engaging portion 92 is formed.

For this reason, when the engaging projection 73 is engaged with the cut groove 52a of the 80th wheel 52, as shown by a two-dot chain line in FIG. 35 away from the wheel, allowing the stroller wheel 35 to move to the small iron wheel 36 side,
That is, the needle adjusting mechanism 44 can be operated.

On the other hand, when the engaging projection 73 is pressed against the outer periphery of the 80th wheel 52 other than the cut groove 52a, FIG.
As shown by the solid line, the engaging portion 92 engages with the stroller 35 to move the stroller 35 toward the small iron wheel 36, that is, locks the needle adjusting mechanism 44, and pulls out the winding stem 31 and the like. The needle adjustment operation itself cannot be performed.

Therefore, until the winding is locked by the winding lock lever 71, that is, until the mainspring 1a is sufficiently wound, the needle adjusting mechanism 44 is locked by the needle adjusting lock lever 91, and the needle adjusting operation cannot be performed. I have.

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

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

2) Each of the winding lock mechanisms 70,
The pointer lock mechanism 80 and the needle adjustment lock mechanism 90 are provided with an addition / subtraction wheel train 50 arranged on the outer peripheral side of the barrel wheel 1 and the square wheel 4.
, And the space around the barrel car 1 can be effectively used, and does not hinder the miniaturization and thinning of the timepiece. In particular, a mortar crucifix-type locking mechanism provided with a finger fixed to a barrel and a gear called a cruciform cross attached to the barrel, which has been conventionally used in a clock (table clock), includes a barrel shin 1c and a barrel. A finger or a gear must be directly attached to the car 1, and accordingly, the watch becomes thicker, the degree of freedom in fitting parts becomes smaller, and the design becomes more difficult. And the space can be used effectively. For this reason, even in a watch having a small component arrangement space, it is possible to realize a winding stop (hand stop) at the time of winding and rewinding the mainspring 1a, and a lock function of needle adjustment.

3) The hoisting lock lever 71 is
, The rotation is restricted by engaging with the eighty-fourth wheel 58 in which the retained torque is reduced because the speed is increased, so that the winding can be locked with a smaller force. For this reason,
The strength required for the hoisting lock lever 71 and the 84th wheel 58 can be reduced, and these components can be reduced in size and thickness.

Similarly, since the pointer lock lever 81 is engaged with the 87th wheel 61 whose holding torque is reduced because the speed is increased with respect to the barrel wheel 1, the rotation of the pointer lock lever 81 is smaller. The winding can be locked by force. For this reason, the strength required for the pointer lock lever 81 and the 87th wheel 61 can be reduced, and these components can be reduced in size and thickness.

4) The engagement projection 73 of the winding lock lever 71 and the needle adjustment lock lever 91 and the engagement projection 83 of the pointer lock lever 81 are pressed against the 80th wheel 52 by the action of the springs 74 and 84. The engagement projections 73, 8
3 can be reliably engaged with the cut groove 52a, or can be kept in contact with the outer periphery of the 80th wheel & pinion 52, and can be operated stably without vibration or the like. Hand lock mechanism 80, needle alignment lock mechanism 90
Reliability can also be improved.

5) Rotating shaft 71 of hoisting lock lever 71
a is disposed between the eighty-eighth wheel 58 and the eighty-eighth wheel 52, so that each locking portion 72 engaged with each wheel 58, 52 from the rotating shaft 71a, The length up to 73 can be shortened, and the rigidity of the winding lock lever 71 can be improved accordingly.

Similarly, the rotating shaft 8 of the pointer lock lever 81
Since 1a is disposed 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 reduced, and the rigidity of the pointer lock lever 81 can be improved accordingly.

Further, since the rotating shaft 71a of the needle adjusting lock lever 91 is also disposed between the stop wheel 35 and the 80th wheel 52, the rotating shaft 71a is engaged with each wheel 35, 52 from the rotating shaft 71a. The lengths of the locking portions 92 and the engagement protrusions 73 can be reduced, and the rigidity of the needle adjustment lock lever 91 can be improved accordingly.

It should be noted that the fact that the rotating shafts 71a and 81a are disposed between the vehicles means that the distance between the rotation centers of the vehicles is larger than the distance between the rotation centers of the vehicles.
This means that the length from the rotation center of each vehicle to each of the rotation shafts 71a and 81a is short.

6) Since the winding of the mainspring 1a can be locked with a predetermined number of turns, the output torque at the start of rewinding of the mainspring 1a does not increase significantly, and the output torque can be kept substantially constant. For this reason, when the rotor 12 rises immediately after the needle adjustment, the time from when the control circuit starts driving until the control can be controlled 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 while the control circuit is stopped can be performed with high accuracy, and the time indication in the electronically controlled mechanical timepiece can be performed. Accuracy can be further improved.

7) Further, since there is no remarkably high output torque, the governing brake range, that is, the torque to be controlled can be limited. For this reason, the accuracy at the time of speed control can be further improved, and the time indication accuracy can be further improved, and unnecessary brake control such as when extremely high output torque is applied becomes unnecessary. , The duration of the clock by the mainspring 1a can be lengthened.

8) Since the addition and subtraction train train 50 which can input and raise the winding torque and the rewinding torque to make one output is provided, the power reserve needle 51 is provided on the 80th wheel 52. The power reserve, that is, the remaining time of the watch, can also be displayed.

9) Since the pointer locking mechanism 80 is provided, the output torque of the mainspring 1a is reduced, and the generator 20 cannot obtain a power generation amount capable of driving the control circuit in the electronically controlled mechanical timepiece, so that the hand operation can be controlled. When it disappears (free-run state), the train wheel 13, that is, the hands, can be forcibly stopped, and the time can be prevented from being erroneously displayed.

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 is also stopped, the user of the watch can be made to clearly recognize that the output torque has decreased and the operation is abnormal, and the user can be reliably prevented from mistaking the time.

10) The hand lock mechanism 80 can prevent the mainspring 1a from rewinding below the required number of turns.
Unnecessary winding during winding (between the winding numbers 0 and B in FIG. 8) can be eliminated, and the winding operation can be shortened.

11) A needle alignment lock mechanism 90 is provided.
Since the hands cannot be set until the mainspring 1a is sufficiently wound, the time from when the hands are set to when the clock stops again can be maximized. Watches can be provided.

12) Also, since the hand adjusting lock mechanism 90 is provided, when the output torque of the mainspring 1a is reduced and the electronically controlled mechanical timepiece is stopped, the hands can be adjusted until the mainspring 1a is sufficiently wound. It is possible to secure a sufficiently long system stoppage time until the above situation occurs.
At this time, while the mainspring 1a is being wound by hand, the generator 20 is operated intermittently due to the output from the mainspring 1a. As a result, a charged portion such as a capacitor can be brought to a higher voltage state. For this reason, in order to perform the needle adjusting operation, each needle is stopped, that is, the generator 20 is stopped.
When the operation is stopped, the time during which the system can be driven by the condenser can be extended, and if the needle adjustment operation can be completed in a normal time, the system is driven until the generator 20 starts operating. Can be maintained.

Therefore, the system can be controlled immediately after the hand adjustment, and the hand movement control can be performed with extremely high accuracy.

Further, if the needle setting operation is completed within a predetermined time, a certain amount of power is left in the capacitor. The time lag until the control circuit is driven can be shortened, so that errors in time control can be reduced, and a more accurate hand setting operation can be performed.

13) Each of the lock mechanisms 70 and 90 is automatically operated in conjunction with the winding operation of the mainspring 1a, so that it can be operated without the operator's awareness and the operability is further improved. be able to. Similarly, the pointer lock mechanism 80 automatically operates according to the number of turns of the mainspring 1a, so that no burden is imposed on the operator and the operability is not reduced.

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

15) Since the needle adjusting lock mechanism 90 engages the needle adjusting lock lever 91 with the pinwheel 35 to lock the needle adjusting mechanism 44 inoperatively, the user can use the crown (Makishin 31). Is also locked, so that the user can clearly understand that the needle adjusting mechanism 44 is in the locked state, and the operation can be performed intuitively, and the operability can be improved.

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

For example, in the above-described embodiment, the winding lock mechanism 70, the pointer lock mechanism 80, the needle alignment lock mechanism 9
0 is provided, for example, as shown in FIG.
As shown in FIG. 7, only the needle adjustment lock mechanism 90 may be provided, or as shown in FIG. 7, only the winding lock mechanism 70 and the needle adjustment lock mechanism 90 may be provided. Further, although not shown, only the pointer locking mechanism 80 and the hand setting locking mechanism 90 may be provided. In short, the timepiece of the present invention only needs to have at least the hand adjusting lock mechanism 90.

In the above-described embodiment, the levers 71,
Although 91 is integrated, these may be separated.
Further, when the levers 71 and 91 are separately provided, the engaging projections 73 and 93 of the levers 71 and 91 are connected to the 80th wheel 5
By changing the position of engagement with the second cut groove 52a,
The operation timings of the levers 71 and 91 may be different. For example, in the above embodiment, the winding lock lever 7
The needle adjustment operation was not allowed until the winding was locked in step 1. However, if the mainspring 1a had a predetermined number of turns or more, it was set so that the needle adjustment operation could be performed even before the winding was locked. You may.

The specific configuration of the addition / subtraction wheel train 50 is not limited to that of the above-described embodiment, but may include an input from the square wheel 4 at the time of hoisting and a time of rewinding by incorporating a planetary mechanism. Addition and subtraction of the input from barrel box 1 to 80th wheel 52
Anything can be output as long as it can be output.

Further, the pointer locking mechanism 80 is not limited to the one using the above-mentioned addition / subtraction wheel train 50.
A configuration may be adopted in which the number of turns of a is detected and the rewinding of the mainspring 1a can be locked when the number of turns becomes equal to or less than a predetermined number of turns.

In the above embodiment, the winding lock mechanism 70
Has engaged the hoisting lock lever 71 with the eighth wheel & pinion 58 to lock it, but the vehicle that engages the lever 71 may be another vehicle provided in the hoisting portion 30 or the hoisting wheel train 50a. However, it is preferable that the lever 71 is engaged with a wheel having a smaller torque than the square wheel 4.

Similarly, in the pointer lock mechanism 80,
Not only the case where the 87th wheel 61 is stopped, but also any one of the rewinding train 50 b and the train 13 to the generator 20 may be stopped. However, it is preferable that the lever 81 be engaged with a car having a smaller torque than the barrel car 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.
A lock mechanism may be employed in which the outer periphery of the zero car is pressed against and the brake is applied by the frictional force.

The needle adjusting lock mechanism 90 includes:
As in the above-described embodiment, the handwheel 35 is immovably locked so that the winding stem 31 cannot be operated. For example, the winding stem 31 can be pulled out and operated. And the like, the parts of the needle adjustment mechanism may be separated from each other to disable the needle adjustment. In this case, since the external operation member itself such as the crown (Makishin 31) can be operated,
As in the case where the operation of the external operation member itself is locked, the user does not forcefully operate the external operation member, and there is no possibility that a large force is applied to the external operation member, and excessive force is applied to the external operation member, etc. There is an advantage that can be prevented.

Further, in the above-described embodiment, the cut-out groove 52a is formed in the 80th wheel & pinion 52 as the engaging portion for operation. It may be a part. In short, as the operating engagement portion, each lever 7
1, 81, 91 should just be formed so that it may be operated.

The present invention is not limited to an electronically controlled mechanical timepiece,
The present invention may be applied to a mechanical timepiece provided with a wheel, ankle, balance, and the like.

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

Further, a winding lock lever 71 or another lever operated in accordance with the winding lock state is provided so that the on / off state of the winding lock state can be identified by an IC, and the switch is turned on by operating this lever. For example, a signal may be supplied to the IC in response to the winding lock state. According to this structure, the winding lock state can be recognized on the IC, so that the IC can determine whether the mainspring torque is high or low. Therefore, the IC controls the output of a pulse for measuring the rate for checking the accuracy of a circuit requiring power consumption other than the normal control only when the mainspring torque is high, the power generation capacity is high, and the capacitor voltage is high. Can also be realized.

[0107]

As described above, according to the timepiece and the hand adjusting method of the timepiece according to the present invention, unless the mainspring is less than a predetermined number of turns, that is, if the mainspring is not wound more than a predetermined number of turns,
Since the hand adjustment operation cannot be performed, the time duration of the clock after the hand adjustment operation can be extended, and the time indication accuracy can be prevented from lowering.

[Brief description of the 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 sectional view showing a main part of FIG.

FIG. 3 is a sectional view showing a main part of FIG. 1;

FIG. 4 is a sectional view showing a main part of FIG. 1;

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 present 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]

 REFERENCE SIGNS LIST 1 barrel box 1a mainspring 1b barrel barrel gear 1c barrel barrel 4 square hole wheel 13 wheel train 20 generator 30 hoisting section 31 wind truth 35 concatenation wheel 36 small iron wheel 44 needle setting mechanism 50 wheel train for addition and subtraction 50a hoisting wheel train 50b rewind Wheel train 52 80th wheel 52a as an addition / subtraction vehicle 52a notch groove 70 hoisting lock mechanism 71a rotating shaft 71 hoisting lock lever 72 locking portion 73 engaging projection 74 spring portion 80 pointer locking mechanism 81a rotating shaft 81 pointer lock Lever 82 Locking portion 83 Engagement protrusion 84 Spring portion 90 Needle adjustment lock mechanism 91 Needle adjustment lock lever 92 Locking portion

Claims (14)

[Claims] 1. A timepiece for moving a hand coupled to a wheel train with mechanical energy of a spring transmitted through a wheel train, a winding unit for storing energy in the spring, and a winding amount of the spring. An addition and subtraction wheel train for adding and subtracting the rewinding amount and a rewinding amount, an addition and subtraction vehicle for transmitting a torque obtained by adding and subtracting the winding amount and the rewinding amount in the addition and subtraction wheel train, and a hand adjusting mechanism for a timepiece. A timepiece comprising: a hand setting lock mechanism that is operated in conjunction with rotation of the vehicle for adding and subtracting when the mainspring has a predetermined number of turns or less, and locks the hand setting mechanism inoperable. 2. The timepiece according to claim 1, wherein the hand setting lock mechanism is configured to engage with a part of the hand setting mechanism to stop the movement of the hand setting mechanism part. A clock characterized by the following. 3. The timepiece lock according to claim 2, wherein the hand setting lock mechanism has a locking portion engageable with the hand setting mechanism component, and stops movement of the hand setting mechanism component. A timepiece comprising a lever. 4. The timepiece according to claim 3, wherein an actuating engagement portion is formed on an outer periphery of said addition / subtraction wheel, said hand adjusting lock lever is pressed against said addition / subtraction vehicle, and said addition / subtraction wheel is pressed. An engagement protrusion that can be engaged is formed in the operation engagement portion of the vehicle, and when the engagement protrusion is not engaged in the operation engagement portion of the addition / subtraction vehicle, the engagement portion is A timepiece configured to engage with the hand adjusting mechanism component to stop the movement of the hand adjusting mechanism component. 5. The timepiece according to claim 3, wherein the center of rotation of the hand setting lock lever is located between a hand setting mechanism component with which the locking portion is engaged and an addition / subtraction wheel. A clock characterized by being arranged. 6. The timepiece according to claim 1, wherein the hand adjusting lock mechanism engages with a part of the hand adjusting mechanism to separate a part of the part of the hand adjusting mechanism. A timepiece, wherein the timepiece adjusting mechanism is configured to lock the hand adjusting mechanism in an inoperable state. 7. The timepiece according to claim 6, wherein the hand adjusting mechanism includes, as a hand adjusting mechanism component, a winding stem that is movable in an axial direction, and a handwheel that moves forward and backward with the movement of the winding stem. A stitch wheel that can be meshed with the stitch wheel, and the needle adjustment lock mechanism locks the needle adjustment mechanism inoperable by stopping the advance and retreat movement of the stitch wheel and releasing the engagement with the small iron wheel. A watch characterized by being constituted. 8. The timepiece according to claim 1, wherein when the mainspring is wound up to a predetermined number of turns or more, the mainspring is actuated in conjunction with the rotation of the addition / subtraction wheel, and the addition / subtraction wheel is operated. A timepiece comprising: a hoisting wheel train to which a torque at the time of hoisting is transmitted in a train; and a hoisting lock mechanism for locking the hoisting portion and stopping hoisting of a mainspring. 9. The timepiece according to claim 1, wherein when the mainspring is rewound to a predetermined number of turns or less, the timepiece is actuated in conjunction with rotation of the addition / subtraction vehicle to provide the addition / subtraction. A timepiece comprising: a rewinding wheel train to which a torque at the time of rewinding is transmitted in a wheel train, and a handwheel locking mechanism for stopping the hand movement of the hands by locking the wheel train to which the hands are coupled. 10. The timepiece according to claim 1, wherein the generator converts mechanical energy of the mainspring transmitted through the wheel train into electric energy, and is driven by the converted electric energy. And 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 the wheel train to electric energy, a pointer coupled to the wheel train, and driven by the converted electric energy, An electronically controlled timepiece having rotation control means for controlling a rotation cycle of a generator, comprising: a hand adjustment mechanism for the timepiece; and locking the hand adjustment mechanism inoperable when the mainspring has a predetermined number of turns or less. A timepiece comprising a hand setting lock mechanism. 12. The timepiece according to claim 11, wherein a winding portion for storing energy in the mainspring;
A timepiece comprising: a winding lock mechanism for locking the winding portion and stopping winding of the mainspring when the mainspring is wound up to a predetermined number of turns or more. 13. The timepiece according to claim 11, 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 of turns or less. And a pointer lock mechanism for locking the wheel train to stop the hand movement of the hands. 14. A mainspring, a generator for converting mechanical energy of the mainspring transmitted through the wheel train into electric energy, a pointer coupled to the wheel train, and driven by the converted electric energy, A timepiece adjustment control method comprising: a rotation control means for controlling a rotation cycle of a generator; and a timepiece adjustment mechanism, wherein, when the mainspring has a predetermined number of turns or less, the time adjustment is performed by a time adjustment lock mechanism. A hand setting control method for a timepiece, wherein a hand setting operation is disabled by locking a mechanism to be inoperable.