JPH0648456Y2 - Pointer type clock - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a pointer type timepiece.

[Prior Art and its Problems] As a pointer type timepiece, a world timepiece (calendar timepiece with time difference correction) disclosed in Japanese Patent Publication No. 58-11031 is known. This kind of world clock uses a Hinoura wheel that transmits the rotation of the minute handwheel to the hour handwheel as a planet wheel. It is rotatably provided, and has a structure in which the Hino back wheel, which forms a planetary car, is axially supported by the shaft portion erected on this Hino back support vehicle. In such a world clock, normally, the Hino back support wheel does not rotate, and the rotation of the minute hand wheel is transmitted to the hour hand wheel via the Hino back wheel, thereby indicating the time and rotating the winding stem. When the Hino back wheel rotates by operation, the Hino back wheel revolves around the pointer axis and rotates the hour hand wheel, so that only the hour hand can be corrected by the time difference to know the time in multiple cities. .

The Hino back wheel used as a planetary wheel in such a world clock is integrally equipped with a gear part that meshes with the minute hand shaft and a pinion that meshes with the hour hand wheel so that the shaft part of the Hino back support wheel can rotate. Although it can be attached, in order to fix the Hino back wheel so that it does not slip out of the shaft of the Hino back support wheel, it is necessary to hold down the Hino back wheel using a Hino back holding member. Such a Hino back pressing member is attached to a plurality of support columns that are erected on the Hino back supporting vehicle. Therefore, in the world timepiece as described above, it is necessary to have a Hino back presser member that holds the Hino back car so that it does not come out from the shaft of the Hino back support car. In order to attach the holding member to the Hino back support car, a plurality of support columns must be erected on the Hino back support car, and there is a problem that the structure is extremely complicated and the assembly work is troublesome. .

[Purpose of Invention] This invention was made in view of the above-mentioned circumstances. The purpose of this invention is to rotate the Hino-back support wheel 25, which supports the Hino-back wheel 23, to rotate the Hino-back support wheel 25. A pointer-type timepiece that revolves the car 23 and rotates only the hour hand H. A pointer-type timepiece capable of supporting the hour hand wheel 24 and the Hinoura wheel 23 with a simple structure without increasing the number of parts. Especially.

[Points of the Invention] In order to achieve the above-mentioned object, this invention has a minute hand shaft 22c.
The Hino back wheel 23 is supported by a support shaft 25a on a Hino back support wheel 25 that is rotatably provided around the shaft center, and a cylinder shaft 25b is installed at the center of the Hino back support wheel 25. The lower end portion of the hour hand wheel 24 is rotatably supported by the upper end portion of the cylinder shaft 25b, and is positioned above the pinion 24a of the hour hand wheel 24 and on the upper surface of the pinion 23b of the Hino back wheel 23. Hino back car 23 supports shaft 25a
The collar portion 24d is formed so as to extend so as to prevent the collar portion 24d from coming off.

[Embodiment] An embodiment in which the present invention is applied to a pointer type world timepiece will be described below with reference to FIGS. 1 to 7.

1 and 2 show a travel watch type pointer type world timepiece. In this world clock, a watch glass 2 is rotatably provided on the front of a watch case 1, a watch movement 3 described later is provided inside the watch case 1, and an alarm stop switch 4 is provided on the upper part of the watch case 1. There is. The watch glass 2 is made of a substantially disk-shaped glass plate, and the world famous city name (for example, LONODN, PA
(RIS, TOKYO, etc.) is provided on the circumference of the city display board 5 according to the time difference, and its mounting structure and rotation transmission mechanism will be described later. A dial 6 of the timepiece movement 3 is provided correspondingly on the lower side of the watch glass 2, and an hour hand H, a minute hand M, a second hand S, an alarm hand AR, etc. are provided between the dial 6 and the watch glass 2. The pointer is provided so that it can be moved. In addition, at the position of "12:00" of the watch case 1 on the outer circumference of the watch glass 2, the alignment mark 7a of each city name is displayed.
Is provided, and a summer time mark (SUMMER) 7b is provided in the vicinity thereof, that is, between the “12:00” position and the “11:00” position. That is, when the clock glass 2 is rotated and the desired city name is aligned with the alignment mark 7a, the hour hand H moves by the time difference as described later,
It becomes possible to know the time of the desired city, and when the clock glass 2 is rotated and the desired city name is aligned with the summer time mark 7b, the hour hand H also moves to know the time in the summer time of the desired city. Is possible.

FIG. 3 shows a timepiece movement 3 incorporated in the timepiece case 1. In this timepiece movement 3, a step motor 8 drives a train wheel mechanism 9 to move an hour hand H, a minute hand M, and a second hand S to indicate a time, and a time adjusting mechanism 10 adjusts the hands of an indicator and an alarm mechanism. 11 alarm hands
The alarm time is set by AR, and only the hour hand H is moved by the time difference by the Hino back rotation mechanism 12 according to the rotation of the watch glass 2, and the day and night display mechanism 13 is used for morning (AM) and afternoon (PM). The display is also switched. The watch case 1 is composed of a front case 1a and a rear case 1b. Inside the front case plate 14, the rear case plate 15,
A train wheel bridge front 16 and an intermediate bridge 17 are arranged, and a circuit board 18 is also arranged. Hereinafter, each member will be described in order.

The step motor 8 is a drive source of the timepiece movement 3, and includes a rotor 8a and a stator, a coil, etc. (not shown).
When a predetermined pulse signal is applied to the coil, a magnetic field is generated in the stator according to this pulse signal, and the magnetic field causes the rotor 8a to rotate stepwise. In this case, the rotor 8a is rotatably provided between the rear receiving plate 15 and the train wheel bridge 16.

The train wheel mechanism 9 is driven by a step motor 8 to move a pointer.
Intermediate 19 that meshes with 8b and rotates, and this intermediate wheel 19
The fourth wheel & pinion 20 that meshes with the 19a and rotates, the third wheel & pinion 21 that meshes with the pinion 20a of the fourth wheel & pinion 20 and the third wheel & wheel 2
The minute hand wheel 22 that meshes with the first pinion 21a and rotates, and the Hinoura wheel 23 that meshes with the first pinion 22a of this minute wheel 22 and rotates.
And a hour hand wheel 24 etc. that meshes with the pinion 23b of the Hino back wheel 23 and rotates, and is an intermediate wheel between the rear receiving plate 15 and the train wheel bridge 16.
19, 4th wheel 20, 3rd wheel 21 are arranged, and wheel train bridge 16 and intermediate bridge
A minute hand wheel 22 is disposed between the intermediate hand 17 and the front support plate 14, and a Hino back wheel 23 and an hour hand wheel 24 are disposed between the intermediate hand 17 and the front support plate 14. In this case, the fourth wheel 20 rotated by the intermediate wheel 19 is the kana 20
a and a second hand shaft 20b, which are integrally formed, the second hand shaft 20b includes a cylindrical bearing portion 16a of the train wheel bridge 16 and a rear receiving plate 15.
It is rotatably provided at the upper end of the front support plate 14, and the upper end thereof projects above the front support plate 14, and the second hand S is attached to the projecting portion. The minute hand wheel 22 which rotates by the third wheel 21 has a shaft portion 22c and a gear portion 22d attached by a leaf spring 22e so as to be able to slip and rotate, and the gear portion 22d meshes with a pinion 21a of the third wheel 21. It is provided concentrically with the second hand shaft 20b of the fourth wheel & pinion 20. Therefore, in the minute hand wheel 22, normally, the third wheel & pinion 21 rotates the gear portion 22d, and this rotation is transmitted to the shaft portion 22c, but when a load of a certain amount or more is applied, such as when adjusting the time,
The shaft portion 22c and the gear portion 22d rotate in slip with respect to each other. The shaft portion 22c is rotatably mounted between the outer periphery of the cylindrical bearing portion 16a of the train wheel bridge 16 and the cylindrical bearing portion 17a of the intermediate bridge 17, and the first pinion 22a is provided on the upper portion thereof and A second pinion 22b is formed on each of them, and a pipe 22 for attaching a minute hand is provided on the upper end.
f is provided integrally. The pipe 22f forms a minute hand axis, and the upper end thereof projects above the front receiving plate 14, and the minute hand M is attached to the projecting portion. Further, the Hino back wheel 23, which transmits the rotation of the minute hand wheel 22 to the hour hand wheel 24, is integrally formed with a gear portion 23a at the lower portion and a pinion 23b at the upper portion, and an attachment hole 23c is formed at the center thereof. , Intermediate receiver 17
A support shaft 25a of a Hino back support wheel 25, which will be described later, rotatably provided on the cylindrical bearing portion 17a is inserted into a mounting hole 23c, so that the support shaft 25a is rotatably attached to the support shaft 25a described later. Therefore, in this Hino back wheel 23, normally, the Hino back support wheel 25 is fixed, and the rotation of the minute hand wheel 22 is transmitted to the hour hand wheel 24. To know the time of day, the Hino back support wheel 25 rotates with the minute hand wheel 22 fixed, and with this rotation, the first pinion 22a of the minute hand wheel 22 revolves with the gear portion 23a meshing. , Rotate the hour wheel 24. Furthermore, the hour hand wheel 24 is the first cylinder kana 24.
a and a second cylindrical pinion 24b, between which a flange portion 24c is formed so as to project laterally, and a fitting recess 24d is formed in an annular shape in the inner lower portion thereof to form a central cylindrical shaft 24e. Minute hand
It is rotatably provided on the outer circumference of the 22 pipes 22f. In this case, the first cylinder pinion 24a meshes with the pinion 23b of the Hino rear wheel 23, and the second cylinder pinion 24b meshes with an intermediate wheel 31 described later. The collar portion 24c is located between the first cylinder pinion 24a and the second cylinder pinion 24b, that is, on the upper side of the first cylinder pinion 24a that meshes with the pinion 23b of the Hino back wheel 23, and above the Hino back wheel 23. Protruding above the kana 23b,
As a result, the Hino back wheel 23 is rotatably pressed so as not to come out upward from the support shaft 25a described later. Mating recess 24
In d, the upper end of a cylinder shaft 25b, which will be described later, of the rear wheel support wheel 25 is rotatably fitted, thereby holding the cylinder shaft 25b. The cylindrical shaft 24b forms an hour hand shaft, and the upper end thereof projects above the front receiving plate 14, and the hour hand H is attached to the projecting portion.

The time adjustment mechanism 10 adjusts the hands of the hour hand H and the minute hand M, and includes a hand wheel 26 and a transmission wheel 27.
The rotation of 26 causes the transmission wheel 27 to rotate and the minute hand wheel 22 of the minute hand wheel 22 to rotate.
Rotate c. That is, the needle wheel 26 is rotatably provided on the shaft portion 17b provided on the lower surface of the intermediate bridge 17, and the shaft portion 26a
Protrudes downward from the rear case 1b, and a knob 26b is provided at the protruding portion. The transmission wheel 27 is rotatably provided on a shaft portion 17c provided on the lower surface of the intermediate receiver 17, a part of its gear portion meshes with the hand wheel 26, and the other part thereof is a minute hand wheel.
The second pinion 22b of 22 meshes with the second pinion 22b, thereby transmitting the rotation of the hand wheel 26 to the minute hand wheel 22. Therefore, when the handwheel 26 is rotated by the knob 26b of the time adjustment mechanism 10,
This rotation is transmitted to the minute hand wheel 22 by the transmission wheel 27, whereby the minute hand shaft 22c of the minute hand wheel 22 rotates to move the minute hand M, and the hour hand wheel 24 rotates via the Hino back wheel 23 to move the hour hand. H is moved and needles are aligned. At this time, the shaft portion 22c and the gear portion 22d of the minute hand wheel 22 slip and rotate with each other, the rotation of the shaft portion 22c is not transmitted to the gear portion 22d, and the third wheel & pinion 21 and below do not rotate.

The alarm mechanism 11 sets the alarm hand AR to the alarm time and emits an alarm sound at the set time. The alarm set car 28 and this alarm set car 28
A set intermediate wheel 29 that meshes with and rotates with the set intermediate wheel 29, an alarm wheel 30 that meshes with the set intermediate wheel 29 and rotates to carry an alarm hand AR, and an intermediate wheel 31 that meshes with the second cylinder pinion 24b of the hour wheel 24 and rotates. An alarm rotary wheel 32 that meshes with the intermediate wheel 31 and rotates, and switch springs 33 and 33 that contact and separate from fixed contacts according to the vertical movement of the alarm rotary wheel 32. The alarm set wheel 28 and the alarm rotating wheel 32 are rotatably attached to the shaft portion 14a formed on the lower surface of the front receiving plate 14, and the set intermediate wheel 29 and the intermediate wheel
31 is rotatably mounted on the lower surface of the front receiving plate 14 by a mounting shaft 34. Further, the alarm wheel 30 is rotatably attached to the outer circumference of the hour hand wheel 24. In this case, the alarm set wheel 28 is rotated by the operation of an alarm knob (not shown), is rotatably attached to the shaft portion 14a of the front support plate 14, and has a recess 28a ... Is lightly pushed down by the leaf spring 28b and elastically contacts the lower intermediate plate 40. Alarm rotating car 32 is an intermediate car 31
It is always rotated by the hour hand wheel 24 via the, and is arranged below the alarm set car 28 and is attached to the shaft portion 14a so as to be rotatable and vertically movable. 28a formed on the lower surface of the
A convex portion 32a that is removably inserted into is formed, and switch springs 33, 33 are elastically contacted with the lower surface and are biased upward by the switch springs 33, 33. The switch springs 33, 33 are leaf spring-shaped ones, respectively, which are provided on the circuit board 18 and constantly push up the alarm rotating wheel 32, and when the convex portion 32a is inserted into the concave portion 28a of the alarm setting vehicle 28,
The fixed contact (not shown) arranged above is contacted to output an alarm signal. In addition, the alarm car 30 is its cylinder shaft 30
a projects slightly above the front receiving plate 14, and an alarm needle AR is attached to this projected portion.

The day / night display mechanism 13 switches between AM (AM) and PM (PM) and displays it.
It consists of a rotating day / night display wheel 35 and a day / night display plate 36 attached to the day / night display wheel 35 and rotating integrally. The day / night indicator wheel 35 is rotatably mounted between the front receiving plate 14 and the intermediate receiving plate 17, and the upper end portion of its shaft portion is formed in a cylindrical shape. It is exposed, and the day / night display board 36 is attached to this exposed portion. The day / night display plate 36 is one in which the shaft provided on the lower surface of the disk is screwed into the upper end of the shaft portion of the day / night display wheel 35 from above the front receiving plate 14 and thereby rotates integrally with the day / night display wheel 35. . That is, as shown in FIG. 4, the day / night display board 36 is color-coded (for example, yellow in the morning and black in the afternoon) so that the morning and the afternoon can be distinguished from each other, and the sun is displayed on the boundary between the morning and the afternoon. The moon is displayed, and a part of the upper surface of the day / night display plate 36 can be seen through the small window 6a of the dial 6 provided on the front support plate 14. In this case, since the day / night display board 36 is an analog type that rotates once in 24 hours, if the day / night display board 36 is only color-coded, two colors are almost the same at “0:00” and “0:00” in the afternoon. Since it can be seen through the small window 6a and it is difficult to distinguish between morning and afternoon, the sun or the moon is displayed so that it is possible to know whether it is "0:00" or "0:00". In addition, hour characters 1 to 12 are provided around the dial plate 6, and the small window 6a is provided near "1 o'clock".

The Hino back revolution mechanism 12 transmits the rotation of the timepiece glass 2 only to the hour wheel 24 to move the hour hand H and the day / night display plate 36 by the time difference. As shown in FIGS. 5 to 7, Hino back support wheel rotating mechanism consisting of watch glass 2 and idler wheel 37 that rotates by this watch glass 2, and the day when the Hino back wheel 23 revolves by the idler wheel 37 of this Hino back supporting wheel rotation mechanism. It is composed of a rear support wheel 25 and a restricting member 38 for controlling the rotation of the rear support wheel 25. That is, the watch glass 2 is made of a substantially disk-shaped glass plate as described above, and the cylindrical portion 2a is integrally formed in the lower peripheral portion thereof, and the lower portion of the cylindrical portion 2a is the front receiving plate 14 and the intermediate receiving plate.
It is rotatably attached between 17 and. in this case,
The center of rotation of the watch glass 2 is the same as the center of rotation of the pointer shafts described above, and an internal gear 2b is formed in the lower inner portion of the tubular portion 2a. The idler wheel 37 transmits the rotation of the watch glass 2 to the Hino back support wheel 25 and is rotatably attached to the shaft 14b provided on the lower surface of the front support plate 14 and supported by the intermediate support 17. A first gear portion 37a is formed on the upper side and a second gear portion 37b is formed on the lower side of the outer periphery thereof. The first gear portion 37a meshes with the internal gear 2b of the timepiece glass 2, and the second gear portion 37b forms the sun wheel. It meshes with the back support car 25. The Hino back support vehicle 25 is rotated by an idler wheel 37 to revolve the Hino back vehicle 23, and thereby the hour hand wheel 24 is rotated by a time difference to know the time of each city in the world. That is, this day back support car
A cylindrical cylinder shaft 25b is formed at the center of the cylinder 25 so as to project vertically, and the lower side of the cylinder shaft 25b is rotatably attached to the cylindrical bearing portion 17a of the intermediate bearing 17. Also,
This Hino back support wheel 25 has an opening 25b ₁ formed by cutting off a part of its cylindrical shaft 25b, and a support shaft 25a pivotally supporting the Hino back wheel 23 is provided in the vicinity of the opening 25b _1. It is erected upright and has 11 pin protrusions 25c on the bottom as shown in FIG.
Are provided in an annular shape at equal intervals. In this case, the cylinder shaft 25b
Has a fitting convex portion 25b ₂ formed on the upper end thereof, and the fitting convex portion 25b ₂ is rotatably fitted from below into the fitting concave portion 24d formed on the inner lower surface of the hour wheel 24 described above. As a result, the hour wheel 24 is held so as to rotate smoothly. The support shaft 25a is made of a metal shaft in order to increase the mounting strength of the Hino back wheel 23, which prevents the support shaft 25a from collapsing and the tilt of the Hino back wheel 23 and the hour hand wheel.
Prevents disengagement with 24. Therefore, in the normal timepiece mode, the pin protrusions 25c ... Are not rotated by the regulating member 38 described later in the Hino back support wheel 25, but when the watch glass 2 rotates, the regulating force of the regulating member 38 is resisted. Then, the Hino back wheel 23, which is pivotally supported by the support shaft 25a, revolves, thereby rotating the hour hand wheel 24 and moving the hour hand H by the time difference. When the Hino back wheel 25 rotates, the minute hand wheel 22 is directly connected to the rotor 8a of the step motor 8, so the minute hand wheel 22 does not rotate, and the Hino back wheel 23 does.
It revolves in a state of being meshed with the first pinion 22a of 22.

In order to move the hour hand H by the time difference in this way, the number of teeth of each gear is set as follows. That is, the number of teeth of the internal gear 2b of the watch glass 2 is 96, and the number of teeth of each of the first and second gear portions 37a and 37b of the idler wheel 37 is 31, respectively.
The number of teeth of the Hino back support wheel 25 is 44, the first kana 22a of the minute hand wheel 22.
Has 10 teeth, and Hino Ura 23 has 30 teeth. In addition,
The number of teeth of the kana 23a of the Hinoura cart 23 is 8 and the number of teeth of the hour wheel 24 is 3
There are two. Therefore, when the watch glass 2 is rotated by 15 ° (a rotation angle for designating a city with a time difference of 1 hour, which will be referred to as one step below), the number of teeth of the internal gear 2b of the watch glass 2 is four. Because it moves, the Hino back support car 25 is 1 /
11 rotations. In other words, the Hino back support vehicle 25 makes one revolution in 11 steps. In this way, the Hino back support car 25 rotates 1/11 (360 °
X 1/11 turn) Rotate. (However, 10 is the number of teeth of the first pinion 22a of the minute hand wheel 22 and 30 is the number of teeth of the Hino back wheel 23.) Thus, when the Hino back wheel 23 rotates, the Hino back wheel 23 If is not revolved, the hour wheel 24 Rotate. (However, 8 is the number of teeth of the kana 23b of the Hino back wheel 23, 32 is the number of teeth of the hour hand wheel.) However, since the Hino back wheel 23 revolves, the hour hand wheel 24 is Rotate. In other words, the hour wheel 24 rotates 1/12 rotation, that is, 30 ° (for one hour) when the watch glass 2 rotates 15 °.

By the way, the restricting member 38 for restricting the rotation of the rear wheel supporting wheel 25 as described above is fixed in the recess 17c of the intermediate receiving member 17 and is configured as shown in FIGS. 6 and 7. That is, the regulating member 38 is a flat plate made of synthetic resin, and by cutting the center in an arc shape, a concave elastic portion 38a is formed on one side of the regulating member 38, and this elastic portion 38a supports the rear side of the sun. Of the 11 pin protrusions 25c formed on the underside of the car 25,
The two pin protrusions 25c, 25c are elastically locked. In this case, a mountain-shaped protrusion 38b to be inserted between the two pin protrusions 25c, 25c is formed at the center of the elastic portion 38a. Therefore, with this regulating member 38, the protruding portion 38b of the elastic portion 38a is inserted between the next pin projections 25c and 25c of the rear wheel support wheel 25 with a click feeling every time the watch glass 2 is rotated by 15 °. The position of the support vehicle 25 is restricted.

Next, the case of using the world clock configured as described above will be described.

Normally, the step motor 8 moves the hour hand H, the minute hand M, and the second hand S through the train wheel mechanism 9, and the reference mark of the reference city, that is, the city name displayed on the city display plate 5 of the watch glass 2 and the alignment mark of the watch case 1. The time in the city where 7a coincides, for example, London in FIG. 1 and Tokyo in FIG. 2, is indicated and displayed. That is, when the rotor 8a of the step motor 8 rotates, the fourth wheel & pinion 20 rotates via the intermediate wheel 19, which causes the second hand S to move. Also, when the fourth wheel 20 rotates, the third wheel
The minute hand wheel 22 is rotated via 21, whereby the minute hand M moves. Further, when the minute hand wheel 22 rotates, the hour hand wheel 24 also rotates via the Hino back wheel 23, whereby the hour hand H moves.
In this case, the Hinoura support car 25 provided with the Hinoura support car 23
Since the position is restricted by the restricting member 38, it does not rotate. Therefore, the Hino Ura cart 23 rotates on the spot without revolving. When the hour hand wheel 24 rotates in this way, the alarm rotating wheel 32 and the day / night display wheel 35 also rotate via the intermediate wheel 31, rotate the day / night display plate 36, and let the small window 6a of the dial plate 6 open in the morning and afternoon. Is displayed.

In order to know the time of each city in the world with such a world clock, the clock glass 2 on the front may be turned to match the city name of which the time is desired with the alignment mark 7a of the watch case 1. For example, as shown in FIG. 1, while the alignment mark 7a is aligned with "LONDON" on the city display board 5 and the time in London is "10:10 am", the watch glass 2 is rotated,
As shown in FIG. 2, when "TOKYO" on the city display board 5 is aligned with the alignment mark 7a, the hour hand H and the day / night display board 36 move to display the time in Tokyo, "7:10 pm". That is, when the watch glass 2 rotates, as shown in FIG. 5, the first gear of the idler wheel 37 is attached to the internal gear 2b of the watch glass.
Since the gear portion 37a is meshed, the idler wheel 37 rotates together with the watch glass 2. And this idler car
The rotation of the idler wheel 37 is transmitted to the Hino back support wheel 25 because the second gear portion 37b of 37 meshes with the Hino back support wheel 25. When the rotation of the idler wheel 37 is thus transmitted to the Hino back support wheel 25, the Hino back support wheel 25 rotates against the elastic force of the elastic portion 38a of the restriction member 38. In this case, every time the timepiece glass 2 rotates by 15 °, the day wheel back support wheel 25 rotates by 1/11 with a click feeling due to the protrusion 38b formed on the elastic portion 38a of the regulating member 38. When the Hino back wheel 25 rotates in this way, the Hino back wheel 23 will be the first pinion of the minute hand wheel 22.
Rotating while rotating while engaging with 22a, the hour wheel 24
Rotate by 30 °. In this state, since the minute hand wheel 22 is directly connected to the step motor 8, it does not rotate.
Therefore, the hour hand wheel 24 rotates in accordance with the rotation of the watch glass 2, but the minute hand wheel 22 and the fourth wheel & pinion 20 do not rotate, and the hour hand H
Only the hand moves. When the hour hand wheel 24 thus rotates, the intermediate wheel 31 rotates, and the intermediate wheel 31 rotates the day / night display wheel 35, and also rotates the day / night display plate 36 provided on the day / night display wheel 35. As a result, either morning or afternoon is displayed through the small window 6a of the dial plate 6. That is, when the time in London is in the morning (white) as shown in FIG. 1 and the watch glass 2 is turned to set in Tokyo as shown in FIG. 2, the small window 6a of the dial 6 is shown in the afternoon. (Indicated by diagonal lines) is displayed, which distinguishes between morning and afternoon.

Further, when it is desired to know the time of the city where the summer time is implemented, the clock glass 2 is turned and the desired city name is set to the summer time 7b. Then, similarly to the above, only the hour hand H and the day / night display board 36 move, and the time in summer time of the city can be known.

To set the alarm time, an alarm knob (not shown) is operated to set the alarm hand AR to a desired time and the stop switch 4 is turned on.
That is, when the alarm set wheel 28 is rotated by the alarm knob, the alarm wheel 30 is rotated via the set intermediate wheel 29, thereby setting the alarm hand AR at a desired time and rotating the alarm set wheel 28 to rotate the alarm. The car 32 is pushed down and the switch springs 33, 33 are pushed down. As a result, the alarm time is set, and when the time advances in this state, the hour wheel 24 of the train wheel mechanism 9 causes the intermediate wheel
The alarm rotating wheel 32 rotates via 31 while elastically contacting the lower surface of the alarm set wheel 28. Then, at the set alarm time, the convex portion 32a formed on the upper surface of the alarm rotating wheel 32 becomes the concave portion 2 formed on the lower surface of the alarm setting vehicle 28.
8a, whereby the alarm rotating wheel 32 is pushed up by the switch springs 33, 33, and
33, 33 contacts a fixed contact (not shown) above it, outputs an alarm signal, and emits an alarm sound. To stop the alarm sound, the stop switch 4 may be pressed to turn it off. With such an alarm mechanism, if you turn the watch glass 2 and keep displaying the time of other countries, the alarm will sound at the time of other countries, so after seeing the time of other countries, reset it to your own time. I need to put it. On the contrary, it can also be used to sound an alarm at the time of another country.

To adjust the time, turn the clock glass 2 to align the city name of your own with the alignment mark 7a, and in this state, adjust the time.
All you have to do is to operate the knob 26b of 10. That is, knob 26b
When is rotated, the hand wheel 26 rotates, and this rotation is transmitted to the minute hand wheel 22 via the transmission wheel 27, which causes the minute hand wheel 22 to rotate and the hour hand wheel 24 to be transmitted via the Hinoura wheel 23. Rotate,
Further, this rotation causes the day / night indicator wheel 35 to rotate via the intermediate wheel 31, and the minute hand M, the hour hand H, and the day / night indicator plate 36 are moved to correct the time.

Therefore, according to such a world clock, the time of each city in the world can be easily known by an extremely simple operation of only rotating the watch glass 2, and the time can be read in the same state as an ordinary clock. It is possible to read the time easily and easily. In particular, the hour hand wheel 24 of the wheel train mechanism 9 incorporated in such a world clock is
A collar portion 24c protruding laterally from the upper side of the first cylinder pinion 24a that meshes with the pinion 23b is integrally formed, and the collar portion 24c is located on the pinion 23b at the upper part of the Hino back wheel 23, and Since the back wheel 23 is rotatably held so as not to come out upward from the support shaft 25a provided upright on the Hino back support wheel 25, the Hino back holding member as a separate component as in the conventional case is unnecessary, and It also eliminates the need for multiple support posts to attach it. Therefore, the structure for pressing the Hino back wheel 23 becomes extremely simple, the number of parts is small, and it is possible to easily assemble. In this case, since the support shaft 25a erected on the Hino back wheel support 25 is made of a metal shaft, it is possible to increase the mounting strength of the Hino back wheel 23, prevent the support shaft 25a from falling down, and support the shaft 25a.
It is possible to reliably prevent the disengagement of the Hino back wheel 23 and the hour hand wheel 24 due to the inclination of.

In the embodiment described above, the watch glass 2 is rotatably provided on the watch case 1 as the rotation operation member, and the cities of the world are displayed on the periphery of the watch glass 2. However, the present invention is not limited to this. A bezel ring may be rotatably provided on the outer periphery, and each city in the world may be displayed on the bezel ring. Moreover, the means for driving the Hino back support vehicle 25 is not limited to the watch glass 2 and the bezel ring described above. Alternatively, the crown winding stem may be operated.

Further, the present invention is not limited to the travel watch type as described above, but can be widely applied to other hands such as wrist watches.

[Effect of the Invention] As described in detail above, according to the pointer type timepiece of the present invention, the Hino back wheel 25 and the Hino back wheel 23 are provided so as to be rotatable around the axis of the minute hand shaft 22c. Is supported by a support shaft 25a, and a cylindrical shaft 25b is formed so as to project upward at the center of the rear wheel support wheel 25. The lower end of the hour wheel 24 is rotatably supported by the upper end of the cylindrical shaft 25b. Then, at this time, a flange portion 24d, which is located on the upper side of the pinion 24a of the handwheel 24 and is located on the upper surface of the pinion 23b of the Hino back wheel 23 and which prevents the Hino back wheel 23 from slipping out of the support shaft 25a, is formed. Therefore, in the pointer type timepiece in which the Hino-back wheel 23 is revolved to rotate the Hino-back wheel 23 and rotate only the hour hand H, the hour hand wheel 24 and the date are set in a simple structure without increasing the number of parts. The back wheel 23 can be supported.

[Brief description of drawings]

1 to 7 show an embodiment in which the present invention is applied to a travel watch type world timepiece, FIG. 1 and FIG. 2 are front views showing the usage state, and FIG. 3 is a watch case. FIG. 4 is a front view of the day / night display board of the day / night display mechanism, FIG.
FIG. 5 is an enlarged cross-sectional view of an essential part of the Hino-rear revolution mechanism, FIG. 6 is an exploded perspective view thereof, and FIG. 7 is an enlarged bottom view showing the relationship between the Hino-rear support vehicle and the restriction member. 9: Wheel train mechanism, 12: Hino back revolution mechanism, 22: Minute hand wheel, 23: Hino back wheel, 23a: Gear part, 23b: Kana, 24
...... Hour wheel, 24a ...... Cylinder 1st cylinder, 24c ...... Flange, 25 ......
Hino back support car, 25a …… support shaft, H …… hour hand.

Claims (1)

[Scope of utility model registration request] 1. A minute hand wheel 22 having a minute hand shaft 22c and a pinion 22a to which a minute hand M is attached, and an hour hand shaft 24e and a pinion 24a to which an hour hand H is attached, which are rotatable about the axis of the minute hand shaft 22c. An hour hand wheel 24 provided, and a gear portion 23a that meshes with the pinion 22a of the minute hand wheel 22 is located at the bottom,
A pinion 23b that meshes with the pinion 24a of the hour hand wheel 24 is integrally formed in the upper part, and a mounting hole 23c is formed in the center,
The rotation of the hour wheel 22 is rotated by the rotation of the hour wheel 22.
Hino back wheel 23 transmitted to 24, is provided rotatably around the axis of the minute hand shaft 22c, the Hino back wheel 23 by inserting into the mounting hole 23c of the Hino back wheel 23 on the upper surface. The Hino rear support vehicle 25 having a supporting shaft 25a rotatably supported is provided upright, and the Hino rear support vehicle rotating mechanism for rotating the Hino rear support vehicle 25. in the center of the 25 cylindrical shaft 25b having an opening 25b ₁ part of the gear portion 23a of the date Roh minute wheel 23 is inserted is protruded upward, the hour wheel 24 has its lower end the cylindrical shaft It is rotatably supported at the upper end of 25b, and above the pinion 24a of the hour hand wheel 24 is located on the upper surface of the pinion 23b of the Hino-back wheel 23, and the Hino-back wheel 23 from the support shaft 25a. A pointer type timepiece characterized in that a collar portion 24d is formed to extend so as to prevent it from coming out.