JP3265232B2 - Chronograph clock - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chronograph timepiece, and more particularly, to a chronograph hour hand provided with a lever device that does not use a wire spring and measuring hours, minutes and seconds. The present invention relates to a chronograph clock displayed by a chronograph minute hand and a chronograph second hand.

[0002]

2. Description of the Related Art In a conventional chronograph timepiece, a barrel wheel 110 rotates a front train wheel 312 as shown in FIG. A mainspring (not shown) is arranged in barrel barrel 110 and forms the power source of the chronograph timepiece. The second chronograph train wheel 316 is assembled so as to be rotated by the rotation of the front train wheel 312, and the chronograph second hand 118 attached to the second chronograph train wheel 316 measures the elapsed time of "second" such as one second. Display the measurement result. The minute chronograph wheel train 322 is assembled so as to be rotated by the rotation of the second chronograph wheel train 316, and the minute chronograph wheel train 32 is rotated.
The measurement result of the elapsed time of “minute” such as one minute is displayed by the chronograph minute hand 124 attached to the second.
Second chronograph wheel train 316 to minute chronograph wheel train 32
The transmission of rotation to 2 is configured to be performed via an oscillating wheel (not shown).

The barrel kana 912 is a barrel car slip mechanism 91.
0 is attached to the barrel car 110. The hour chronograph intermediate wheel 914 is installed so as to rotate by rotation of the barrel pinion 912. The hour chronograph gear 916 is incorporated so as to rotate by rotation of the intermediate hour chronograph wheel 914. The hour chronograph wheel 920 is attached to the hour chronograph wheel 916 via the hour chronograph slip mechanism 918, and the chronograph hour hand 128 attached to the hour chronograph wheel 920 indicates “hour” as if one hour has elapsed. The measurement result of the elapsed time is displayed. For example, JP-A-50-9463 and JP-A-50-94
No. 64 discloses a configuration of a conventional chronograph timepiece. In a conventional chronograph timepiece,
When the button for starting / stopping the chronograph watch is pressed, an operating lever operated by the button is used. A wire spring is used to position the operation lever, a part of the operation lever is bent, and the wire spring is hooked on the bent portion.

In a conventional chronograph timepiece, a hammer is operated by a leaf spring when a reset button is pressed to return a chronograph hand.

[0005]

However, in a conventional chronograph timepiece, when a start / stop button for starting / stopping the chronograph timepiece is pressed, it is difficult to position and assemble an operation lever operated by the button. Was. In particular, since a wire spring is used for positioning the operation lever, it is difficult to adjust the bending degree of the wire spring. Further, in the conventional chronograph timepiece in which the operation amount of the hammer is large, the amount of deflection of the spring for operating the hammer must be increased, and the spring for operating the hammer is large and long. It was necessary to increase the size of the movement.

An object of the present invention is to provide a chronograph timepiece in which the operation lever can be easily positioned and assembled without using a wire spring. Another object of the present invention is to provide a small chronograph timepiece that can operate a hammer using a spring having good spring characteristics.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention relates to a chronograph timepiece provided with a mainspring in a barrel barrel, and which is based on rotation of the barrel barrel in a chronograph measurement mode. A chronograph wheel provided rotatably, a chronograph second display member for displaying the measurement result of the elapsed time of seconds based on the rotation of the chronograph wheel, and a chronograph wheel provided to rotate based on the rotation of the chronograph wheel A minute chronograph wheel train, a chronograph minute display member for displaying the measurement result of the elapsed time of the minute based on the rotation of the minute chronograph wheel train, and provided so as to rotate based on the rotation of the chronograph wheel. A chronograph wheel train, a chronograph hour display member for displaying the measurement result of elapsed time based on the rotation of the hour chronograph wheel train, and a lever device. It was configured to. The lever device is provided with a lever member provided so as to be capable of linear movement, at least one drive wheel which is provided so as to be rotatable and engaged with the lever member, and applies a rotational force in one direction to the drive wheel. And a chronograph second display member, a chronograph minute display member, and a chronograph hour display member, which are configured to return to zero based on the operation of the lever device.

Further, the lever device of the present invention has two elongated holes, and a longitudinally extending central axis of the elongated holes is provided substantially in parallel. It is preferable to have two driving wheels, each of which engages with a lever member, and two driving wheel springs each configured to apply a rotational force to the two driving wheels in the same direction.

The present invention also relates to a chronograph timepiece, comprising: a base plate constituting a substrate of the chronograph timepiece; a chronograph wheel provided on the front side of the base plate; and a minute chronograph wheel train provided on the back side of the base plate. , A time chronograph wheel train provided on the back side of the main plate, a chronograph second display member for displaying the measurement result of seconds elapsed by rotation of the chronograph wheel, and a minute elapsed time by rotation of the minute chronograph wheel train Chronograph minute display member for displaying the measurement result of the above, a chronograph hour display member for displaying the measurement result of the elapsed time by rotation of the hour chronograph wheel train, and a lever device.

In this chronograph timepiece, the lever device comprises a lever member capable of linear movement, two driving wheels,
It is preferred to have two drive wheel springs.

With this configuration, in the chronograph timepiece, the positioning and assembly of the operating lever can be easily performed, and the hammer can be reliably operated by using a spring having good spring characteristics. Therefore, according to the present invention, a small chronograph timepiece can be realized.

[0012]

[0013]

[0014]

[0015]

[0016]

[0017]

[0018]

[0019]

[0020]

[0021]

[0022]

[0023]

[0024]

[0025]

[0026]

[0027]

[0028]

[0029]

[0030]

Embodiments of the present invention will be described below with reference to the drawings. (1) Configuration of a front wheel train and a chronograph wheel train (1-1) A state in which a chronograph mechanism is not operated. Referring to FIG. 1, a movement (mechanical body) 100 of a chronograph timepiece according to the present invention includes a main plate 102. It has.
Here, of the two sides of the main plate 102, the side with the dial 104 is referred to as the “back side” of the movement, and the dial 10
The side opposite to the side with 4 is referred to as the “front side” of the movement. The train wheel incorporated into the "front side" of the movement is referred to as "front train wheel", and the wheel train incorporated into the "back side" of the movement is referred to as "back train wheel".

In many cases, numerals from 1 to 12 are described on the outer peripheral portion of the dial of the timepiece. Therefore, each direction along the outer peripheral portion of the timepiece is expressed by using this numeral. In the case of a wristwatch, the upper direction and the upper side of the wristwatch are referred to as “12 o'clock direction” and “12:00 side”, respectively, and the right and right sides of the wristwatch are referred to as “3 o'clock direction” and “3 o'clock side”, respectively.
The lower and lower sides of the wristwatch are referred to as "6 o'clock direction" and "6 o'clock side", respectively, and the left and left sides of the wristwatch are referred to as "9 o'clock direction" and "9 o'clock side", respectively. Similarly, the direction and position corresponding to the two o'clock scale of the dial are referred to as "two o'clock direction" and "two o'clock position", and the directions and positions corresponding to the four o'clock scale of the dial are "four o'clock" and "four o'clock". 4 o'clock position ". Referring to FIGS. 1 and 4, a mainspring (not shown) provided in barrel barrel 110 constitutes a power source of the chronograph timepiece. Second car 1
30 is provided so as to rotate based on rotation of barrel barrel 110. The cannon pinion 132 is fitted into the second wheelset 130,
The minute hand 134 attached to the cylindrical pin 132 is configured to display “minute”. Third wheel 136 is second wheel 1
It is provided to rotate based on the rotation of 30. The third wheel & pinion 136 is rotatably supported by the third wheel receiver 720 and the main plate 102. The fourth wheel & pinion 114 is provided so as to rotate based on the rotation of the third wheel & pinion 136.

The balance 140 constitutes a speed control device of the timepiece,
The pallet fork 142 and the escape wheel 144 constitute the escapement device of the watch. The rotation of the fourth wheel & pinion 114 is controlled by the balance with hairspring 140, the ankle 142 and the escape wheel & pinion 144. The center wheel & pinion 130 is provided so as to rotate once an hour. The minute wheel & pinion 146 is provided to rotate based on the rotation of the center wheel & pinion 130. The hour wheel 148 is the second wheel 130
It is provided so as to rotate once every 12 hours based on the rotation of. The hour hand 150 attached to the hour wheel 148 is configured to display “hour”. Second intermediate wheel 152 is provided to rotate based on rotation of fourth wheel & pinion 114. The second wheel 154 is set to 1 based on the rotation of the second intermediate wheel 152.
It is provided to rotate once a minute. Second wheel 154
Is configured to display “second”.

The center of rotation of the fourth wheel & pinion 114 and the second wheel & pinion 130
And the rotation center of the hour wheel 148 are the same. The rotation center of the second wheel & pinion 154 is different from the rotation center of the second wheel & pinion 130. That is, the second hand 156 forms a so-called “small second hand”. The chronograph wheel 200 is replaced by a chronograph receiver 202.
And is rotatably incorporated in the second receiver 204. The center of rotation of the chronograph wheel 200 and the center of rotation of the center wheel & pinion 130 are the same. The fourth wheel & pinion 114 is configured to rotate as incorporated in a part of the chronograph wheel 200. A chronograph second hand 118 is attached to the chronograph wheel 200, and is configured to display the measurement result of the elapsed time of the second based on the rotation of the chronograph wheel 200. The chronograph second hand 118 is a chronograph second display member, and may be a clock hand, a disk, a character's hand or foot, a flower, a star, or the like.

A oscillating weight 210 is rotatably incorporated in the chronograph receiver 202, and is configured to wind up a mainspring (not shown) via an automatic winding mechanism (not shown) by rotation of the oscillating weight 210. The second heart cam 220 is fixed to the chronograph wheel 200 and the chronograph wheel 200
It is configured to rotate integrally with. Second heart cam 22
The second clutch spring 222 that contacts the zero urges the second clutch ring 224 in a direction toward the upper surface of the gear wheel of the fourth wheel & pinion 114. As shown in FIG. 1, when the chronograph mechanism is not operating, the first start / stop lever 740 and the second start / stop lever 742 come into contact with the outer peripheral slope portion of the second clutch ring 224 and the fourth wheel & pinion 114 Release the second clutch ring 224 from the upper surface of the gear. Therefore, the chronograph vehicle 200
Is the fourth wheel 1 against the spring force of the second clutch spring 222.
14 and is not rotated by the rotation of the fourth wheel & pinion 114. In this structure, the second clutch spring 222 and the second clutch ring 224 constitute a first clutch mechanism provided in the chronograph timepiece.

Since the chronograph timepiece of the present invention has the first clutch mechanism, by rotating the second heart cam 220, the chronograph second hand 118 can be reliably returned to zero. Referring to FIGS. 2 and 4, an intermediate hour and minute chronograph wheel (A) 230 is a chronograph receiver 202.
And, it is rotatably incorporated in the barrel holder 232, and is configured to rotate based on rotation of the chronograph wheel 200. The hour-minute intermediate chronograph wheel (B) 234 is rotatably incorporated into the chronograph bridge 202 and the second train wheel bridge 236, and is configured to rotate based on the rotation of the hour-minute intermediate chronograph wheel (A) 230. Have been. Second main plate 24
0 is the back side of the main plate 102, that is, the dial 104 of the main plate 102.
The second wheel train bridge 236 is installed between the second main plate 240 and the dial 104.

The hour-minute chronograph intermediate wheel (B) 234 has an hour-minute chronograph intermediate gear (B) 234a and an hour-minute chronograph intermediate pinion (B) 234b. The hour and minute chronograph middle pin (B) 234b is located on the front side of the main plate
02. Therefore, the hour and minute chronograph intermediate wheel (B) 234 is incorporated so as to penetrate a part of the main plate 102. Hour-minute chronograph intermediate gear (B) 234
a is slidably attached to the shaft portion 234c of the intermediate hour and minute chronograph wheel (B). That is, the hour and minute chronograph intermediate wheel (B) 234 has a slip mechanism.
In the embodiment of the present invention shown in FIG. 2, two hour and minute chronograph intermediate wheels 230 and 234 are provided. In such a configuration having a plurality of intermediate hour and minute chronograph wheels, it is preferable to provide a slip mechanism in one of the intermediate hour and minute chronograph wheels.

An hour chronograph transmission wheel (C) 242 is rotatably incorporated in the main plate 102 and the second train wheel bridge 236,
It is configured to rotate based on the rotation of the hour and minute chronograph intermediate pinion (B) 234b. The hour chronograph transmission wheel (B) 244 is rotatably incorporated into the main plate 102 and the second train wheel bridge 236, and the hour chronograph transmission wheel (C) 2
It is configured to rotate based on the rotation of 42.
The hour chronograph transmission wheel (A) 246 is rotatably incorporated into the main plate 102 and the second train wheel bridge 236, and is configured to rotate based on the rotation of the hour chronograph transmission wheel (B) 244. When the chronograph wheel 250 is the main plate 102
And the second train wheel bridge 236 so as to be rotatable and configured to rotate based on the rotation of the hour chronograph transmission wheel (A) 246. The hour chronograph wheel 250 has an hour chronograph gear 250a, an hour chronograph true 250b, and an hour heart cam 250c.
0b and the hour heart cam 250c are configured to be able to rotate integrally. The hour chronograph gear 250a is pressed against the hour heart cam 250c by the hour clutch spring 252. Hour clutch spring 25
2 constitutes a second clutch mechanism.

During operation of the chronograph mechanism, the hour chronograph stem 250b and the hour heart cam 250c rotate integrally with the hour chronograph gear 250a. A chronograph hour hand 128 is attached to the hour chronograph stem 250b, and is configured to display a measurement result of an elapsed time of “hour” such as “1 hour” during operation of the chronograph mechanism. The chronograph hour hand 128 is a chronograph hour display member, and may be a clock hand, a disk, a hand or foot of a character, a flower or a star. Since the chronograph timepiece of the present invention has the second clutch mechanism, by rotating the hour heart cam 250c,
The chronograph hour hand 128 can be reliably returned to zero.

Referring to FIG. 3 and FIG. 4, an intermediate minute chronograph wheel 258 is rotatably incorporated in the main plate 102 and the second train wheel bridge 236, and an intermediate hour and minute chronograph wheel (B).
It is configured to rotate based on the rotation of 234b. A minute chronograph wheel 260 is rotatably incorporated in the second main plate 240 and the second wheel train bridge 236, and is configured to rotate based on rotation of the intermediate minute chronograph wheel 258. The minute chronograph wheel 260 has a minute chronograph gear 260a, a minute chronograph true 260b and a minute heart cam 260c, and the minute chronograph true 260b and the minute heart cam 260c are configured to be able to rotate integrally. . The minute chronograph gear 260a is pressed against the minute heart cam 260c by the minute clutch spring 262. The minute clutch spring 262 forms a third clutch mechanism.

During operation of the chronograph mechanism, the minute chronograph stem 260b and the minute heart cam 260c rotate integrally with the minute chronograph gear 260a. A chronograph minute hand 124 is attached to the minute chronograph stem 260b, and is configured to display a measurement result of an elapsed time of “minute” such as “1 minute” during operation of the chronograph mechanism. The chronograph minute hand 124 is a chronograph minute display member, and may be a clock hand, a disk, a character's hand or foot, a flower, a star, or the like. Since the chronograph timepiece of the present invention has the third clutch mechanism, by rotating the minute heart cam 260c,
The chronograph minute hand 124 can be reliably returned to zero.

Preferably, the date wheel 270 is the date wheel holder 27.
2, is rotatably incorporated into the second train wheel bridge 236,
It is configured to display “day”. The date wheel 270 is
It is operated by a calendar feed mechanism (not shown). (1-2) A state in which the chronograph mechanism is operated. Referring to FIGS. 6 to 8, when the chronograph timepiece is set to the chronograph measurement mode and the chronograph mechanism of the chronograph is operating, the second Heart cam 220
Can rotate integrally with the chronograph wheel 200. Second clutch spring 22 that contacts second heart cam 220
2 moves the lower surface of the second clutch ring 224 to the fourth wheel 114
To the top of the gear. Therefore, the chronograph wheel 20
0 is the fourth wheel & pinion 1 due to the spring force of the second clutch spring 222.
14 and can rotate together.

The rotation of the chronograph wheel 200 causes the intermediate hour and minute chronograph wheel (B) 234 to rotate via the rotation of the intermediate hour and minute chronograph wheel (A) 230. The hour-minute chronograph intermediate gear (B) 234a has two spring-like bridge portions 234f.
Between the hour and minute chronograph intermediate wheel (B) 234
34 g are incorporated. Therefore, the bridge part 234
f and the upper shaft portion 234g can slip each other. The rotation of the hour-minute intermediate chronograph wheel (B) 234 causes the hour-hour chronograph transmission wheel (C) 242 and the intermediate minute chronograph wheel 258 to rotate. The rotation of the hour chronograph transmission wheel (C) 242 causes the hour chronograph wheel 250 to rotate via the rotation of the hour chronograph transmission wheel (B) 244 and the hour chronograph transmission wheel (A) 246.

At the same time, the rotation of the intermediate minute chronograph wheel 258 causes the minute chronograph wheel 260 to rotate. By configuring the chronograph timepiece of the present invention in this way,
“Second”, “minute”, and “hour” are measured, and the measurement result of the elapsed time is displayed on the chronograph second hand 118 and the chronograph minute hand 1.
24, it can be indicated by the chronograph hour hand 128. Since the chronograph timepiece of the present invention has a slip mechanism in a part of the intermediate chronograph wheel train, the second heart cam 220, the hour heart cam 250c, and the minute heart cam 260
By rotating c, the chronograph second hand 118,
The chronograph minute hand 124 and the chronograph hour hand 128
It is possible to return to zero at almost the same time. The possibility of damaging the chronograph wheel, the intermediate chronograph wheel train, the minute chronograph wheel train, and the hour chronograph wheel train due to the operation of returning the hands to zero is extremely low.

As described above, the chronograph timepiece of the present invention, as shown in FIG. 5, uses the front wheel train 31 based on the rotation of the barrel barrel 110 in the chronograph measurement mode.
It includes a chronograph wheel 200 provided to rotate through the rotation of the second and fourth wheel & pinion 114. The front wheel train 312 includes a second wheel & pinion 130 and a third wheel & pinion 136. Chronograph second hand 118 constituting a chronograph second display member
Displays the measurement result of the elapsed time in seconds based on the rotation of the chronograph wheel 200. Based on the rotation of the chronograph wheel 200, the minute chronograph wheel train 322 and the hour chronograph wheel train 326 rotate through the rotation of the chronograph intermediate wheel 320. The intermediate chronograph wheel 320 includes an intermediate hour and minute chronograph wheel (A) 230 and an intermediate hour and minute chronograph wheel (B) 234. The minute chronograph wheel train 322 includes a minute chronograph intermediate wheel 258 and a minute chronograph wheel 260. Hour chronograph wheel train 326
The hour chronograph transmission wheel (C) 242, the hour chronograph transmission wheel (B) 244, the hour chronograph transmission vehicle (A)
246 and hour chronograph wheel 250 are included.

The chronograph minute hand 124 constituting the chronograph minute display member displays the measurement result of the elapsed time of the minute based on the rotation of the minute chronograph wheel train 322. Chronograph hour hand 128 constituting a chronograph hour display member
Displays the measurement result of the elapsed time of the hour based on the rotation of the hour chronograph wheel train 326. (2) Structure and operation of hour chronograph operating mechanism and minute chronograph operating mechanism (2-1) Configuration of each part before chronograph measurement is activated Referring to FIG. 9, the implementation of the chronograph timepiece of the present invention will be described. An hour chronograph wheel train and a minute chronograph wheel train are arranged on the back side of the movement 100 in the form. The hour chronograph wheel train is an hour chronograph transmission wheel (C) 242,
An hour chronograph transmission wheel (B) 244, an hour chronograph transmission wheel (A) 246 and an hour chronograph wheel 250 are included.
The minute chronograph wheel train includes a minute chronograph intermediate wheel 258 and a minute chronograph wheel 260.

The operation lever 414 and the hour return transmission lever (A) 416 are arranged on the back side of the movement 100. A start / stop button (not shown) is provided at 2 o'clock of the movement, and the operation lever 414 can be moved by pushing the start / stop button in the direction indicated by the arrow 410. Have been. Also, in the 4 o'clock direction of the movement,
A reset button (not shown) is provided, and by pressing the reset button in the direction indicated by arrow 412,
The hour hammer transmission lever (A) 416 is configured to be movable. An operation cam 420 is provided rotatably around the operation cam assembly pin 422 as a rotation center,
An operation cam positioning pin 424 is provided. The operation cam jumper 426 is provided with operation cam positioning chevron portions 426a and 426.
b. Actuating cam positioning chevron 426a and 42
6b is a spring portion 42 of an elastically deformable operating cam jumper.
6c is provided at a portion close to the tip.

Actuating cam positioning chevron 426a and 42
6b is engaged with the operation cam positioning pin 424. The state shown in FIG. 9 is a state in which the operation cam positioning pin 424 is positioned by the operation cam positioning chevron 426a. In the state shown in FIG. 9, when the start / stop button is pressed, the operating lever 414 is moved, and the movement of the operating lever 414 causes the operating cam 420 to rotate, and the operating cam positioning pin 424 engages with the operating cam positioning chevron 426b. Combine. In this way, by pressing the start / stop button, the operating cam 420
Causes the minute chronograph operating mechanism and the hour chronograph operating mechanism to switch from the stopped state shown in FIG. 9 to the operating state shown in FIG. The hour hammer transmission lever (B) 430 is
The hour hammer transmission lever pin (B) 430p is rotatably provided about the center of rotation. Hour hammer transmission lever (B) 430
Has a first engagement portion (A) 430a that engages with the hour hammer transmission lever (A) 416, and a second engagement portion (B) 430b.

The hour hammer 440 is provided so as to be able to move substantially along a straight line. Hour hammer 4
Forty positioning guides 440a are engaged (B) 430b.
Is engaged. The hour hammer 440 has two long holes 44
0c and 440d. The long hole 440c is guided by the hour hammer pin 442, and the long hole 440d is guided by the hour hammer pin 444. Hour hammer drive wheels 450 and 452 for moving hour hammer 440
Are rotatably provided. Hour hammer driving car 4
An hour hammer driving wheel spring 454 for rotating the wheel 50 in a certain direction and an hour hammer driving wheel spring 456 for rotating the hour hammer driving wheel 452 in a certain direction are provided. The hour hammer driving wheel 450 is urged in a direction to rotate counterclockwise by the spring force of the hour hammer driving wheel spring 454. Hour hammer drive wheel 45
2 is due to the spring force of the hour hammer driving wheel spring 456,
It is urged to rotate counterclockwise. Therefore,
The hour hammer 440 receives a force to move in the direction indicated by the arrow 458 in FIG.

In the state shown in FIG. 9, the hour hammer 440
The hour heart cam returning part 440h is engaged with the hour heart cam 250c to return it to zero, and at the same time, the minute heart cam returning part 440 provided on the hour hammer 440.
m is engaged with the minute heart cam 260c to make it zero. In this state, the hour hammer operating pin 460 provided on the operating cam 420 is
Not touching any part of. (2-2) Operation at the Start of Chronograph Measurement Next, referring to FIG. 10, the start / stop button in the 2:00 direction of the movement is pushed in the direction of arrow 410. In this way, when the chronograph timepiece is set to the chronograph measurement mode, the movement of the operation lever 414 causes the operation cam 420 to rotate counterclockwise,
The operation cam positioning pin 424 is engaged with the operation cam positioning chevron 426b. At this time, the hour hammer operating pin 460 provided on the operating cam 420 also rotates in the counterclockwise direction, and the hour hammer 440 is turned to the arrow 470 in FIG.
Move in the direction indicated by. Hour hammer transmission lever (B) 4
The engagement portion (B) 430 b of the thirty meshes with the valley 440 b of the hour hammer 440. Hour hammer transmission lever (B) 43
0 is urged by a hammer transmission lever spring 432 in a direction to rotate counterclockwise as described later.

In this state, when the hour heart return lever 440 h is provided on the hour hammer 440, the hour heart cam 25
0c, and at the same time, the minute heart cam returning part 440m provided on the hour hammer 440 is moved to the minute heart cam 260c.
Move away from (2-3) Operation During Chronograph Measurement Next, referring to FIG. 11, FIG. 11 shows a state in which the operation lever has returned to the original position after pressing the start / stop button. The operating cam positioning pin 424 remains engaged with the operating cam positioning chevron 426b, and the hour hammer operating pin 460 determines the position of the hour hammer 440.
0c and the minute heart cam 260c.

In this state, as the chronograph wheel 200 rotates, the hour and minute chronograph intermediate wheel (A) 230 rotates, and further, the hour and minute chronograph wheel trains and the minute chronograph wheel train rotate, and the chronograph wheel train rotates. Activate the graph. That is, the rotation of the chronograph wheel 200 causes the rotation of the hour and minute chronograph intermediate wheel (A) 230 to rotate the hour and minute chronograph intermediate wheel (B) 234. The rotation of the hour-minute intermediate chronograph wheel (B) 234 causes the hour-hour chronograph transmission wheel (C) 242 and the intermediate minute chronograph wheel 258 to rotate. The rotation of the hour chronograph transmission wheel (C) 242 causes the hour chronograph wheel 250 to rotate via the rotation of the hour chronograph transmission wheel (B) 244 and the hour chronograph transmission wheel (A) 246. The rotation of the minute chronograph intermediate wheel 258 causes the minute chronograph wheel 260 to rotate.

Accordingly, "hour", "minute", and "second" can be measured by the chronograph mechanism configured as described above. (2-4) Operation for Stopping Chronograph Measurement Next, referring to FIG. 12, the start / stop button in the 2:00 direction of the movement is pressed in the direction of arrow 410. The movement of the operation lever 414 causes the operation cam 420 to rotate clockwise, and the operation cam positioning pin 424 engages with the operation cam positioning chevron 426a. At this time, the hour hammer operating pin 460 provided on the operating cam 420 also rotates clockwise, and the hour hammer operating pin 460 separates from the hour hammer 440. In this way, the chronograph clock is changed from the chronograph measurement mode to the chronograph stop mode. (2-5) Configuration of Each Part When Chronograph Measurement is Stopped Referring to FIG. 13, FIG. 13 shows that after pressing the start / stop button, the operating lever 414 returns to the original position. Indicates the status. The working cam positioning pin 424 remains engaged with the working cam positioning chevron 426a.
The hour hammer transmission lever (B) 430 has an engagement portion (B) 430.
b remains engaged with the valley 440b of the hour hammer 440, and the hour hammer 440 does not move.

In this state, when the hour cam return lever 440 h provided on the hour hammer 440 is moved to the hour heart cam 25
0c, and the minute heart cam return portion 440m provided on the hour hammer 440 is also held apart from the minute heart cam 260c. The movement of the operation lever 414 causes the operation cam 420 to rotate clockwise around the operation cam assembly pin 422 as a rotation center. As a result, a chronograph wheel 200 is provided by a start / stop mechanism, which will be described later, provided on the front side of the movement.
Is prevented from rotating. As a result, the rotation of the hour chronograph wheel 250 and the minute chronograph wheel 260 stops,
The function of measuring the elapsed time by the chronograph mechanism is stopped.

Accordingly, in this state, the chronograph second hand 118, the chronograph minute hand 124, and the chronograph hour hand 1
28 is the "second" elapsed from the start,
Stops displaying "minute" and "hour" respectively. (2-6) Reset Operation Referring to FIG. 13, by pressing a reset button (not shown) located at 4 o'clock of the movement in the direction indicated by the arrow 412, the hour return transmission lever (A) 416 is moved.
It is rotated clockwise around the hour hammer transmission lever pin (A) 416p. Hour hammer transmission lever (A) 41
6 is the operating end 416a of the hour hammer transmission lever (B) 430.
Of the first hammer transmission lever (B) 430p and the hour hammer transmission lever pin (B) 430p.
Around the clockwise. Then, the second engagement portion (B) 43 of the hour hammer transmission lever (B) 430
0b is disengaged from the valley 440b of the hour hammer 440. Then, as shown in FIG. 14, the hour hammer 440 moves in the direction indicated by the arrow 458 by the force received from the hour hammer driving wheels 450 and 452.

As a result, when the hour heart return lever 440 provided on the hour hammer 440h is moved to the hour heart cam 250c
To return to zero, and at the same time,
The minute heart cam returning part 440m provided in 40 engages with the minute heart cam 260c to return it to zero. At the same time, the second heart cam is also reset to zero, as described later. Therefore, as a result of this reset operation, the chronograph second hand 11
8, chronograph minute hand 124, chronograph hour hand 128
Returns to the "zero position" before the start of the operation of the chronograph mechanism and stops. (3) Configuration and Operation of Operating Lever Referring to FIGS. 15 and 16, the operating lever 414 used in the chronograph timepiece of the present invention includes an operating lever (A) 5.
10 and an operation lever (B) 512. The operation lever (A) 510 has a base portion 510a and a button operation input portion 510b, and the button operation input portion 510b is provided substantially at right angles to the base portion 510a. Upon pressing the start / stop button, this force is configured to be applied to the button actuation input 510b. Two long holes 510
c and 510d are provided on the base portion 510a. The operating lever 414 is provided so as to be able to move along a substantially straight line by the elongated holes 510c and 510d.

The operating lever (B) 512 is attached to the base 510a so as to be rotatable about the operating lever pin (B) 514 as a center of rotation. The operating lever (B) 512 is
It has a positioning guide portion 512a and an operation cam engaging portion 512b that engages with the operation cam 420. Operating lever spring 5
16 is secured to the base 510 by pins 518 and 520.
a. The operating lever spring 516 includes a spring 5
16a, and a setting portion 516b provided at the tip of the spring portion 516a. The setting portion 516b is configured to engage with the positioning guide portion 512a to perform positioning of the operation lever (B) 512. Therefore, the operating lever (B)
The operation lever 512 can rotate about the operation lever pin (B) 514 as a rotation center, but the initial position of the operation cam engaging portion 512 b of the operation lever (B) 512 is the operation lever spring 51.
It is determined by 6.

With such a configuration, the operating lever (B)
The positioning of 512 is facilitated, and the assembly and adjustment of the operating lever 414 is simple. 17 and 18, the operation lever (B) 512 is attached to the base portion 510a so as to be rotatable around the operation lever brim pin (B) 524 as a rotation center. Actuating lever collar pin (B)
524 has a collar part 524a, and this collar part 524a
Prevents the engagement between the setting portion 516b of the operating lever spring 516 and the positioning guide portion 512a of the operating lever (B) 512 from being released. Operating lever brim pin (B) 52
The distance between the lower surface of the fourth flange portion 524a and the upper surface of the base portion 510a is larger than the thickness of the operating lever spring 516 and larger than the thickness of the operating lever (B) 512. Therefore, the operating lever (B) 5
12 can rotate, and the setting portion 516b of the operation lever spring 516 can surely set the positioning guide portion 512a of the operation lever (B) 512.

With such a configuration, the operating lever spring 5
There is no danger that the 16 setting portions 516b will come off the positioning guide portion 512a of the operating lever (B) 512, and the operation of the operating lever spring 516 will be stable. (4) Configuration and Operation of Hour Hammer When referring to FIGS. 19 and 20, in the reset state where the chronograph mechanism is not operating, the hour hammer 4
The long hole 440 c of the forty is guided by an hour hammer pin 442 provided on the second base plate 240,
The slot 440d is guided by a hammer pin 444 provided on the second base plate 240. The hour hammer driving wheels 450 and 452 are connected to the second main plate 240 and the second train wheel bridge 2.
36, and is rotatably provided between them, and is attached with screws 570 in a raised state. The hour hammer driving wheel springs 454 and 456 are formed of wire springs having a shape close to a part of an arc. The first end 454a of the hour hammer driving wheel spring 454 enters the guide hole 240g of the second main plate 240, and the second end 454b enters the guide hole 450g of the hour hammer driving wheel 450. The first end 456a of the hour hammer drive wheel spring 456 is the second main plate 2
40, the second end 456b is in the guide hole 452h of the hour hammer drive wheel 452.

The pin 450f provided on the hour hammer driving wheel 450 enters the hole 440f of the hour hammer 440,
A pin 452f provided in the hour hammer driving wheel 452 is inserted into the hole 440g of the hour hammer 440. Accordingly, the hour hammer 440 is subjected to such a force as to move in the direction indicated by the arrow 458 in FIG. In the state shown in FIG. 19, the hour heart cam return portion 440h provided on the hour hammer 440 engages the hour heart cam 250c to return it to zero, and at the same time, the minute portion provided on the hour hammer 440. Heart cam return part 440m is minute heart cam 2
60c, and this is returned to zero. Referring to FIG. 21, when the chronograph mechanism is operating, the hour hammer 440 is moving in the direction indicated by the arrow 470 in FIG. The hour heart return 25 440 h provided on the hour hammer 440 is connected to the hour heart cam 25.
0c, and at the same time, the minute heart cam returning part 440m provided on the hour hammer 440 is moved to the minute heart cam 260c.
Is kept away from the

In this state, the hour hammer driving wheel spring 4
54 and 456 are deformed and urge the hour hammer driving wheels 450 and 452 in a direction to rotate counterclockwise. (5) Configuration and Operation of Second Chronograph Mechanism (5-1) State in which Chronograph Mechanism is Operated Referring to FIGS. 22 and 23, the operation cam pins 710 move from the back side of the main plate 102 to the front side of the main plate 102. Extending to the operation cam 420. Working cam pin 710
Is provided outside the outer periphery of the main plate 102, and is provided movably outside the outer periphery of the main plate 102. With this configuration, it is not necessary to provide a through hole in the base plate 102. Therefore,
When a chronograph mechanism is mounted on a movement that does not have a chronograph mechanism, the chronograph mechanism can be additionally mounted without affecting parts already incorporated in the main plate.

The operating lever pin (C) 724 is the third support 72
0 is provided. An operation lever (C) 722 is provided between the third receiver 720 and the chronograph receiver 202 so as to be rotatable around the operation lever pin (C) 724 as a rotation center.
The operating lever (C) 722 has an elongated hole 722a, and a portion 710a near the tip of the operating cam pin 710 is
Enter 22a. The long hole 722a is the operating lever pin (C).
The first arc-shaped arc portion 722b farther from the first lever 724 and the first arc-shaped arc portion 722 closer to the operation lever pin (C) 724.
c. In a state where the chronograph mechanism is operated, as shown in FIG. 22, the portion 710a near the tip of the operation cam pin 710 is located at a position near the first elongated hole arc portion 722b.

A third receiver 720 is provided on the front side of the main plate 102. The first start / stop lever pin 732 and the second start / stop lever pin 734 are provided on the first receiver 730. The first start / stop lever 740 is provided on the third receiver 720 so as to be rotatable around the first start / stop lever pin 732 as a rotation center. The second start / stop lever 742 is provided on the third receiver 720 so as to be rotatable around the second start / stop lever pin 734 as a rotation center. The second start / stop lever 742 has a spring portion 742a.
The second start / stop lever 742 is urged to rotate clockwise by the spring force of 2a. The second start / stop lever interlocking portion 742b of the second start / stop lever 742 engages with the first start / stop lever interlocking portion 740b of the first start / stop lever 740. Therefore, the first start / stop lever 740 is urged by the spring force of the spring portion 742a of the second start / stop lever 742 so that the first start / stop lever 740 rotates counterclockwise.

The first start / stop lever positioning portion 740c of the first start / stop lever 740 engages with the operation lever positioning portion 722d of the operation lever (C) 722. Actuating lever (C) 722 centering on operating lever pin (C) 724
Is determined by the engagement between the portion 710a close to the tip of the operation cam pin 710 and the elongated hole 722c, and as a result, the first start / stop lever 740 with the first start / stop lever pin 732 as the center of rotation. Is also determined in the rotational direction. Similarly, the position of the second start / stop lever 742 in the rotation direction about the second start / stop lever pin 734 is also determined. In this state, as shown in FIG. 7, the clutch operating portion 740f of the first start / stop lever 740 is connected to the second clutch ring 2
No contact with 24. Similarly, the second start / stop lever 742
7 does not contact the second clutch ring 224, as shown in FIG. Therefore, the second clutch ring 224 receives the spring force of the second clutch spring 222 and contacts the fourth wheel & pinion 114, and the rotation of the fourth wheel & pinion 114 causes the chronograph wheel 200 to rotate.

In this state, when the chronograph wheel 200 rotates, the hour and minute chronograph intermediate wheel (A) rotates, and further, the hour and minute chronograph wheel trains and the minute chronograph wheel train rotate. Perform the operation of. Therefore, by the chronograph mechanism configured as described above,
"Minute" and "second" can be measured. A hammer 750 is provided rotatably about a hammer pin 752 as a rotation center. The heart cam return-to-zero portion 750 a of the hammer 750 is separated from the second heart cam 220. The hammer 750 is operated by a hammer spring (not shown).
It is biased to rotate in a counterclockwise direction. The position of the hammer 750 in the rotation direction is
Is determined by the fact that a part of the lever contacts the operating lever (C) 722.

A hammer transmission lever 756 is provided rotatable about a hammer transmission lever pin 758 as a center of rotation. (5-2) A state in which the chronograph mechanism is stopped In a state in which the chronograph mechanism is stopped, as shown in FIG.
Is located at a position close to the second elongated arc portion 722c. In this state, the clutch operating portion 740 of the first start / stop lever 740
f contacts the second clutch ring 224, and at the same time, the clutch operating portion 742 f of the second start / stop lever 742 also contacts the second clutch ring 224. Therefore, the second clutch ring 2
24 is away from the fourth wheel 114, and even if the fourth wheel 114 rotates, the chronograph wheel 200 does not rotate.

With the structure in which the operating lever (C) 722 is provided with the elongated hole 722a, the position of the clutch operating portion 740f of the first start / stop lever 740 and the clutch operating portion 742f of the second start / stop lever 742 are accurately determined. be able to. At this time, the heart cam return-to-zero portion 750a of the hammer 750
Remain away from the second heart cam 220. In this state, when the chronograph wheel 200 stops, the hour and minute intermediate wheel (A) also stops, and the hour and minute chronograph wheel trains and the minute chronograph wheel train also stop. As a result, the chronograph second hand 118 and the chronograph minute hand 12
4. The chronograph hour hand 128 stops displaying the elapsed time "second", "minute", and "hour" from the start point. Therefore, with the chronograph mechanism configured as described above, the measurement results of the elapsed time of “hour”, “minute”, and “second” can be read. (5-3) Operation for resetting the chronograph mechanism With the operation of the chronograph stopped, a reset button (not shown) is pressed, and the hammer transmission lever 756 is rotated clockwise about the hammer transmission lever pin 758 as the center of rotation. Rotate in the direction of. Then, the hammer 750 is engaged with the hammer transmission lever 756, and rotates clockwise around the hammer pin 752. The heart cam return-to-zero portion 750a of the hammer 750 comes into contact with the second heart cam 220 to return the second heart cam 220 to zero.

At this time, on the back side of the movement,
As described above, the hour heart return portion 440h provided on the hour hammer 440 engages the hour heart cam 250c to return it to zero, and at the same time, the minute heart cam return provided on the hour hammer 440. The zero portion 440m engages the minute heart cam 260c to return it to zero. Therefore, in this reset state, the chronograph second hand 118, the chronograph minute hand 124, and the chronograph hour hand 128 return to the “zero position” before the start of the operation of the chronograph mechanism and stop. (6) Configuration and operation of hammer transmission lever and hour hammer transmission lever (A) Referring to FIGS. 26 and 27, the hour hammer transmission lever (A) 416 is an hour hammer transmission lever pin (A) 416p.
And a time hammer transmission lever button operating portion 416s which is substantially perpendicular to the hammer transmission lever flat portion 416t. The hammer transmission lever 756 is connected to the hammer transmission lever pin 75.
8 has a hammer transmission lever flat portion 756t and a hammer transmission lever button operating portion 756s substantially perpendicular to the hammer transmission lever flat portion 756t. Hour hammer transmission lever button operating section 416s and hammer transmission lever button operating section 7
56s are configured to be substantially parallel. The hour hammer transmission lever button operating section 416s is located closer to the inside of the movement than the hammer transmission lever button operating section 756s.

The hour hammer transmission lever spring 432 biases the hour hammer transmission lever (B) 430 in a direction to rotate counterclockwise. The hour hammer transmission lever spring 432 is preferably formed of a coil spring. Hour hammer transmission lever spring 432
Due to the spring force, the hour hammer transmission lever (B) 430 is rotated counterclockwise, and the hour hammer transmission lever (A) 416 in contact with the hour hammer transmission lever (B) 430 is rotated counterclockwise. Can be rotated. Hour hammer transmission lever (A)
When the 416 rotates counterclockwise, the hour hammer transmission lever button operating section 416s pushes the hammer transmission lever button operating section 758s, so that the hammer transmission lever 756 can be rotated counterclockwise. With such a configuration of the present invention, by providing one return spring, the return force can be sequentially transmitted to the three levers. Therefore, the number of parts of the chronograph timepiece can be reduced, and the size of the timepiece can be reduced. (7) Description of the operation of the chronograph timepiece (7-1) The state in which the chronograph mechanism is not operating Referring to FIG. 28, in the state in which the chronograph mechanism is not operating, the hour hand 150 indicates the current time. The minute hand 134 indicates “minute” of the current time, and the second hand 156 indicates “second” of the current time. The chronograph timepiece shown in FIG. 28 displays an intermediate time between “10: 8: 12” and “10: 8: 13”.

In this state, the chronograph hour hand 128
Stop at the position indicated by “12” and set the chronograph minute hand 1
24 is stopped at the position indicated by “30”, and the chronograph second hand 118 is stopped at 12:00 on the clock, ie, at the position indicated by “60”. Chronograph second hand 118
Is configured to make one revolution per minute, and the chronograph second scale 810 corresponding to the chronograph second hand 118 is arranged along the outer circumference of the timepiece, that is, along the rotation trajectory of the tip of the chronograph second hand 118. 5 "," 10 "," 15 "
.. "50", "55" and "60" are provided. The chronograph timepiece is preferably configured to be a so-called "10 vibration" timepiece. “10 vibrations” refers to a configuration in which the balance with a balance swings 36,000 times an hour.
Here, "swing" indicates a state in which the balance with hairspring rotates in one direction, and the balance with hairspring returns to the original position in "two swings".
That is, the balance with hairspring vibrates 10 times per second and reciprocates 5 times per second.

With this configuration, “1/1”
A chronograph timepiece capable of performing chronograph measurement in "0 second" units can be realized. In this configuration,
The chronograph second scale 810 is provided every “1/10 second”, or the chronograph second scale 810 is set to “1/1”.
It is good to provide every 5 seconds. The chronograph timepiece may be configured to be a so-called "5.5 vibration", "6 vibration" or "8 vibration" timepiece. In these configurations, the chronograph second scale 810 is set according to the number of vibrations, and the number of teeth of the wheel train is also set according to the number of vibrations. With such a configuration, a chronograph timepiece with higher accuracy can be realized. Chronograph minute hand 124
Is configured to rotate once every 30 minutes, and a chronograph minute scale 812 corresponding to the chronograph minute hand 124 is
Along the rotation trajectory of the tip of the chronograph minute hand 124,
“5”, “10”, “15”, “20”, “25” and “30” are provided. Chronograph minute hand 124
May be configured to rotate once per 60 minutes.

The chronograph hour hand 128 is set once every 12 hours.
The chronograph hour scale 814 that is configured to rotate and that corresponds to the chronograph hour hand 128 has “1”, “2”,
"3" ... "11" and "12" are provided.
The chronograph hour hand 128 may be configured to rotate once every 24 hours. The date character 820 of the date indicator 270 indicates the current date. The chronograph clock shown in FIG. 28 displays “5 days”. (7-2) The state in which the chronograph mechanism is operated In the state shown in FIG. 28, the start / stop button 830 in the 2:00 direction of the chronograph timepiece is pressed.

Referring now to FIG. 29, the operation of the start / stop button 830 causes the operation lever 414 to move, the operation cam 420 to rotate in the counterclockwise direction, and the operation cam positioning pin 424 to move the operation cam jumper 426. It engages with the actuating cam positioning chevron 426b. When the operation cam pin 710 provided on the operation cam 420 moves, the operation lever (C) 722 is rotated. When the operating lever (C) 722 rotates, the operating lever (C)
722 is a state in which no force is applied to the first start / stop lever 740. Accordingly, the second start / stop lever 742 and the first start / stop lever 740 are held at positions separated from the second clutch ring 224 by the spring force of the spring portion 742 of the second start / stop lever 742. As a result, the spring force of the second clutch spring 222 causes the second clutch ring 224 to contact the fourth wheel & pinion 114, and the rotation of the fourth wheel & pinion 114 causes the chronograph wheel train to rotate.

Referring to FIG. 30, chronograph hour hand 1
The reference numeral 28 indicates that the chronograph hour scale 814 is rotating between “1” and “2” while continuing to rotate.
The chronograph minute hand 812 continues to rotate while indicating “22” of the chronograph minute scale 812, and the chronograph second hand 118 continues to rotate while indicating between “16” and “17” of the chronograph second scale 810. That is, the measurement of the chronograph timepiece is in a state where “1 hour, 22 minutes, 16 seconds, 7” has elapsed at this moment. (7-3) The state in which the chronograph mechanism is stopped In the state shown in FIG. 30, the start / stop button 830 in the 2:00 direction of the chronograph timepiece is pressed again.

Referring now to FIG. 31, the operation of the start / stop button 830 causes the operation lever 414 to move, the operation cam 420 to rotate clockwise, and the operation cam positioning pin 424 to move the operation cam positioning chevron. 42
6a. When the operation cam pin 710 provided on the operation cam 420 moves, the operation lever (C) 722 is rotated. When the operating lever (C) 722 rotates, the operating lever (C) 722 applies a force to the first start / stop lever 740. Therefore, the first start / stop lever 740
, The second start / stop lever 742 and the first start / stop lever 740 contact the second clutch ring 224, and the second clutch ring 224 is separated from the fourth wheel & pinion 114. As a result, even if the fourth wheel & pinion 114 rotates, the chronograph wheel train does not rotate. Therefore, the rotation of the chronograph wheel train is regulated by the second start / stop lever 742 and the first start / stop lever 740. (7-4) Operation of Reset Referring to FIG. 32, the reset button 840 is pressed to
The hammer transmission lever 756 is rotated. Then, when the hammer transmission lever 756 rotates, the hammer transmission lever 7 is rotated.
The hammer 750 engaged with 56 rotates. The hammer spring 760 biases the hammer 750. The second heart cam 220 is returned to zero by the heart cam returning part 750a of the hammer 750.

The operation of the reset button 840 causes the hour hammer transmission lever (A) 416 to rotate, and the rotation of the hour hammer transmission lever (A) 416 causes the hour hammer transmission lever (B) 430 to rotate. . As a result, the hour hammer 44
0 is activated to return the hour heart cam 250c and minute heart cam 260c to zero. Here, the hour hammer 440
The hammer lever pin 44 provided on the second base plate 240
It moves while being guided by 2,444. The hour hammer driving wheels 450 and 452 are hour hammer driving wheel springs 450 and 4.
52. Therefore, as a result of this reset operation, as shown in FIG.
8, chronograph minute hand 124, chronograph hour hand 128
Returns to the "zero position" before the start of the operation of the chronograph mechanism and stops.

[0076]

Since the chronograph timepiece of the present invention does not use a wire spring, the positioning and assembly of the operating lever is easy. Further, in the chronograph timepiece of the present invention, since the hammer is operated using a spring having good spring characteristics, the spring does not become large or long, so that the chronograph timepiece can be downsized.

[Brief description of the drawings]

FIG. 1 is a partial sectional view showing a portion from a third wheel and a fourth wheel to a second wheel in a state where a chronograph mechanism is not operated in an embodiment of a chronograph timepiece of the present invention.

FIG. 2 is a partial sectional view showing a chronograph wheel train and an hour chronograph wheel train in a state where the chronograph mechanism is not operated in the embodiment of the chronograph timepiece of the present invention.

FIG. 3 is a partial cross-sectional view showing a minute chronograph wheel train from an intermediate hour and minute chronograph wheel (B) in a state where the chronograph mechanism is not operated in the embodiment of the chronograph timepiece of the present invention.

FIG. 4 is a functional block diagram showing a wheel train configuration of an embodiment of the chronograph timepiece of the present invention.

FIG. 5 is a schematic functional block diagram showing a wheel train configuration of an embodiment of the chronograph timepiece of the present invention.

FIG. 6 is a schematic plan view for explaining the operation of the chronograph timepiece according to the embodiment of the present invention in a state where the chronograph mechanism is operated.

FIG. 7 shows a chronograph timepiece according to an embodiment of the present invention in a state where a chronograph mechanism is operated.
It is a fragmentary sectional view showing a portion from the third wheel and the fourth wheel to the second wheel.

FIG. 8 shows an embodiment of a chronograph timepiece according to the present invention, in a state where a chronograph mechanism is operated.
It is a partial sectional view showing a time chronograph wheel train from a chronograph wheel.

FIG. 9 is a schematic plan view showing an hour chronograph operating mechanism and a minute chronograph operating mechanism on the back side of the movement in a state where the chronograph mechanism is stopped in the embodiment of the chronograph timepiece of the present invention.

FIG. 10 is a schematic plan view showing an hour chronograph operating mechanism and a minute chronograph operating mechanism on the back side of the movement when the start / stop button is pressed in the embodiment of the chronograph timepiece of the present invention.

FIG. 11 shows the chronograph timepiece according to the embodiment of the present invention, in which the operation lever returns to the original position after the start / stop button is pressed and the chronograph mechanism is operated, and the back side of the movement. It is a schematic plan view showing a chronograph operating mechanism and a minute chronograph operating mechanism.

FIG. 12 is an embodiment of the chronograph timepiece according to the present invention, in which the start / stop button is pressed to stop the chronograph mechanism while the chronograph mechanism is operating, It is a schematic plan view which shows a minute chronograph operation mechanism.

FIG. 13 shows the hour chronograph operating mechanism and minute chronograph operating mechanism on the back side of the movement when the reset button is pressed with the chronograph mechanism stopped in the embodiment of the chronograph timepiece of the present invention. It is a schematic plan view.

FIG. 14 shows the hour chronograph operating mechanism and minute chronograph operating mechanism on the back side of the movement when the reset button is pressed to return the hour heart cam and minute heart cam to zero in the embodiment of the chronograph timepiece of the present invention. It is a schematic plan view.

FIG. 15 is a perspective view showing an operation lever used in the embodiment of the chronograph timepiece of the present invention.

FIG. 16 is a plan view showing an operation lever used in the embodiment of the chronograph timepiece of the present invention.

FIG. 17 is a perspective view showing an operating lever having a brim pin used in the embodiment of the chronograph timepiece of the present invention.

FIG. 18 is a plan view showing an operating lever having a brim pin used in the embodiment of the chronograph timepiece of the present invention.

FIG. 19 is a schematic plan view showing the operation of the hour hammer when the hour heart cam and minute heart cam are reset to zero in the embodiment of the chronograph timepiece of the present invention.

FIG. 20 is an enlarged partial sectional view showing the structure of the hour hammer driving wheel and the hour hammer driving wheel spring in the embodiment of the chronograph timepiece of the present invention.

FIG. 21 is a schematic plan view showing the operation of the hour hammer in a state where the chronograph mechanism is operated in the embodiment of the chronograph timepiece of the present invention.

FIG. 22 is a schematic plan view showing the second chronograph operating mechanism on the front side of the movement when the chronograph mechanism is operated in the embodiment of the chronograph timepiece of the present invention.

FIG. 23 is an enlarged partial cross-sectional view showing a structure of an operation cam and an operation lever (C) in the embodiment of the chronograph timepiece of the present invention.

FIG. 24 is a schematic plan view showing the second chronograph operating mechanism on the front side of the movement when the chronograph mechanism is stopped in the embodiment of the chronograph timepiece of the present invention.

FIG. 25 is a schematic plan view showing the second chronograph operating mechanism on the front side of the movement when the chronograph mechanism is reset in the embodiment of the chronograph timepiece of the present invention.

FIG. 26 is a schematic plan view showing an hour hammer transmission lever (B) and an hour hammer transmission lever (A) in the embodiment of the chronograph timepiece of the present invention.

FIG. 27 is a partial sectional view showing an hour hammer transmission lever (B), an hour hammer transmission lever (A), and a hammer transmission lever in the embodiment of the chronograph timepiece of the present invention.

FIG. 28 is a plan view showing an appearance of the chronograph timepiece in a state where the chronograph mechanism is not operated in the embodiment of the chronograph timepiece of the present invention.

FIG. 29 is a schematic block diagram showing the operation of the start / stop lever in a state where the chronograph mechanism is not operated in the embodiment of the chronograph timepiece of the present invention.

FIG. 30 is a plan view showing an appearance of the chronograph timepiece in a state where the chronograph mechanism is operated in the embodiment of the chronograph timepiece of the present invention.

FIG. 31 is a schematic block diagram showing the operation of the start / stop lever in a state where the operation of the chronograph mechanism is stopped in the embodiment of the chronograph timepiece of the present invention.

FIG. 32 is a schematic block diagram showing the operation of the hammer in a state where the operation of the chronograph mechanism is reset in the embodiment of the chronograph timepiece of the present invention.

FIG. 33 is a plan view showing the appearance of the chronograph timepiece in a state where the operation of the chronograph mechanism is reset in the embodiment of the chronograph timepiece of the present invention.

FIG. 34 is a functional block diagram of a conventional chronograph timepiece.

[Explanation of symbols]

 100 Movement (mechanical body) 102 Main plate 104 Dial 110 Dial barrel 114 Fourth wheel 118 Chronograph second hand 124 Chronograph minute hand 128 Chronograph hour hand 130 Second wheel 132 Cylinder pinion 134 Minute hand 136 Third wheel 140 Balance 142 Ankle 144 Cancer Wheel 146 Minute wheel of the day 148 hour wheel 150 hour hand 152 second intermediate wheel 154 second wheel 156 second hand 200 chronograph wheel 202 chronograph receiver 204 second receiver 210 oscillating weight 220 seconds heart cam 222 seconds clutch spring 224 seconds clutch ring 230 hours minute Chronograph intermediate wheel (A) 232 barrel barrel 234 hour minute chronograph intermediate wheel (B) 234a hour minute chronograph intermediate gear (B) 234b hour minute chronograph intermediate pinion (B) 234f bridge portion 234g upper shaft portion 236 second ring Reception 240 Second main plate 242 hour chronograph transmission wheel (C) 244 hour chronograph transmission wheel (B) 246 hour chronograph transmission wheel (A) 250 hour chronograph wheel 250a hour chronograph gear 250b hour chronograph true 250c heart cam 252 hour clutch spring 258 minute chronograph intermediate wheel 260 minute chronograph wheel 260a minute chronograph gear 260b minute chronograph true 260c minute heart cam 262 minute clutch spring 270 day indicator 272 day indicator holder 312 front wheel train 316 second chronograph wheel train 320 Chronograph intermediate wheel 322 minute chronograph wheel train 326 hour chronograph wheel train 414 operating lever 416 hour hammer transmission lever (A) 416p hour hammer transmission lever pin (A) 420 operating cam 422 operating cam built-in pin 424 operating cam position Determining pin 426 Operating cam jumper 426a, 426b Operating cam positioning chevron 426c Spring portion of operating cam jumper 430 Hour return transmission lever (B) 430p Hour return transmission lever pin (B) 430a Engagement part (A) 430b Engagement part (B ) 432 hour hammer spring 440 hour hammer 440a Positioning guide 440c, 440d hammer long hole 440h heart cam return zero part 440m minute heart cam return zero part 442, 444 hour hammer pin 450, 452 hammer Lever driving wheel 454, 456 hour hammer driving wheel spring 460 hour hammer operating pin 510 Operating lever (A) 510a Base portion 510b Button operation input portion 510c, 510d Slot 512 Operating lever (B) 512a Positioning guide portion 512b Working cam engaging part 514 Actuating lever pin (B) 516 Actuating lever spring 516a Spring portion 516b Regulating portion 524 Actuating lever brim pin (B) 524a Collar portion 710 Actuating cam pin 720 Third support 722 Actuating lever (C) 722c Actuating lever positioning portion 722a Long hole 724 Actuating lever pin (C) 730 First reception 732 First start / stop lever pin 734 Second start / stop lever pin 740 First start / stop lever 740b First start / stop lever interlocking section 740c First start / stop lever positioning section 740f Clutch operating section 742 Second start / stop Lever 742a Spring portion 742b Second start / stop lever interlocking portion 742f Clutch operating portion 750 Hammer return lever 750a Heart cam return-to-zero portion 752 Hammer lever pin 756 Hammer transmission lever 758 Hammer transmission lever pin 760 Hammer lever spring 810 Chronograph second scale 8 2 chronograph minute scale 814 chronograph time scale 820 days character 830 start-stop button 840 reset button

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Norio Shibuya 1-8-1, Nakase, Mihama-ku, Chiba-shi, Chiba Inside Seiko Instruments Inc. (72) Inventor Takeshi Takenaka 1-8-8, Nakase, Mihama-ku, Chiba-shi (72) Inventor Katsuhisa Sakuma 1-8-8 Nakase, Mihama-ku, Chiba-shi, Chiba Seiko Instruments Inc. (56) References JP-A-7-5098 (JP, A) JP-A-7-72272 (JP) JP-A-51-105860 (JP, A) JP-B-5-30236 (JP, B2) JP-A-1-14952 (JP, Y2) JP-B-47-31886 (JP, Y1) (58) Field surveyed (Int. Cl. ⁷ , DB name) G04F ^7/ 00-7/10 G04B 19/00

Claims (4)

(57) [Claims] 1. A chronograph timepiece powered by a mainspring provided in a barrel wheel, wherein the barrel wheel (11) is in a chronograph measurement mode.
A chronograph wheel (200) rotatably provided based on the rotation of the chronograph wheel (200); and a chronograph second display member (118) for displaying the measurement result of the elapsed time of the second based on the rotation of the chronograph wheel (200). ), A minute chronograph wheel train (322) provided to rotate based on the rotation of the chronograph wheel (200), and an elapsed time of minute based on the rotation of the minute chronograph wheel train (322). A chronograph minute display member (124) for displaying the measurement result of the above, a time chronograph wheel train (326) provided to rotate based on the rotation of the chronograph wheel (200), and the time chronograph wheel A chronograph hour display member (128) for displaying the measurement result of the elapsed time based on the rotation of the row (326); and a lever device, wherein the lever device is capable of linear movement. A lever member (440) provided in the rotational movably provided, engaging the lever member (440), at least one drive wheel (450, 452)
A driving wheel spring (454, 456) configured to apply a unidirectional rotational force to the driving wheel (450, 452), and the chronograph second display based on the operation of the lever device. Member (118), the chronograph minute display member (12
4) and the chronograph hour display member (128) is configured to be reset to zero. 2. The chronograph timepiece according to claim 1, wherein the lever device has two long holes, and a longitudinal center axis of the long holes is provided substantially in parallel. Member (44
0), and are provided so as to be rotatable, and each of the lever members (4
40) two drive wheels (450, 452) engaging
A chronograph timepiece comprising: and two drive wheel springs (454, 456) each configured to apply a rotational force in the same direction to the two drive wheels (450, 452). 3. In the chronograph measurement mode, seconds,
A chronograph timepiece capable of measuring elapsed time of minutes and hours, comprising: a main plate (102) constituting a substrate of the chronograph timepiece; and a front surface of the main plate (102) for measuring elapsed time of seconds. A chronograph wheel (200); a minute chronograph wheel train (322) provided on the back side of the main plate (102) for measuring the elapsed time of minutes; and provided on the back side of the main plate (102); An hour chronograph wheel train (326) for measuring the elapsed time of time; and a chronograph second display member (11) for displaying the measurement result of the elapsed time in seconds by rotation of the chronograph wheel (200).
8), a chronograph minute display member (124) for displaying the measurement result of the elapsed time of the minute by rotation of the minute chronograph wheel train (322), and time by the rotation of the hour chronograph wheel train (326). A chronograph display member (128) for displaying the measurement result of the elapsed time; and a lever device. The lever device is provided with a lever member (440) provided to be capable of linear movement, At least one drive wheel (450, 452) engaging the lever member (440).
A driving wheel spring (454, 456) configured to apply a rotational force in one direction to the driving wheel (450, 452).
And a chronograph second display member (118) and a chronograph minute display member (12) based on the operation of the lever device.
4) and the chronograph time display member (128) is configured to return to zero. 4. In the chronograph measurement mode, seconds,
A chronograph timepiece capable of measuring elapsed time of minutes and hours, comprising: a base plate (102) constituting a substrate of the chronograph timepiece; A chronograph wheel (200), provided on the back side of the main plate (102), and a minute chronograph wheel train (322) for measuring the elapsed time of minutes; provided on the back side of the main plate (102); A time chronograph wheel train (326) for measuring the elapsed time of time, and a chronograph second display member (11) for displaying the measurement result of the elapsed time in seconds by rotation of the chronograph wheel (200).
8), a chronograph minute display member (124) for displaying the measurement result of the elapsed time of the minute by rotation of the minute chronograph wheel train (322), and time by the rotation of the hour chronograph wheel train (326). A chronograph display member (128) for displaying the elapsed time measurement result; and a lever device, wherein the lever device has two long holes, and a longitudinal center axis of the long holes is provided substantially in parallel. The linearly movable lever member (4
40), and are provided so as to be rotatable, and each of the lever members (4
40) two drive wheels (450, 452) engaging
And two drive wheel springs (454, 456) each configured to apply a rotational force in the same direction to the two drive wheels (450, 452), and actuation of the lever device. The chronograph second display member (118) and the chronograph minute display member (12
4) and the chronograph time display member (128) is configured to return to zero.