JPS5853755B2 - Calendar clock with time difference correction device - Google Patents

Description

[Detailed description of the invention] The present invention relates to a calendar clock with time difference correction.

An object of the present invention is to realize a small, thin, and well-designed calendar timepiece with time difference correction.

Traditionally, this type of watch has been a multi-time display clock with a double hour wheel and two hour hands, a time difference adjustment clock with a double hour wheel and a slippery wheel, and a multi-time display clock with a planetary gear mechanism. There was also a time display clock.

However, multi-time display watches have many problems, such as the thicker display area, which makes the watch thicker, and there are also restrictions in terms of design.

Also, mobile watches with time difference adjustment, which had double hinōguruma, had some inconveniences, such as not being able to adjust the day of the week display as part of the calendar adjustment.

If a planetary gear mechanism is used, the structure is extremely complicated, and there are no products with a day of the week display, and
There were many problems, such as the watch being thick and lacking in design and portability.

On the other hand, there was an urgent need to develop a calendar clock with simple time difference adjustment, due to the increased opportunities for overseas travel, the fact that some countries in Europe observe daylight saving time, and some countries that have time differences within their borders.

The present invention provides a portable watch that uses a planetary gear mechanism and is small, thin, excellent in design and portability, and has a minimum cost.The present invention will be described in detail below with reference to embodiments.

FIG. 1 is an explanatory diagram showing this embodiment, and FIG. 2 is an assembled sectional view of FIG. 1.

However, in order to simplify the explanation, the central structure using the planetary gear mechanism is mainly illustrated, and the switching mechanism, correction mechanism, calendar mechanism, etc. are omitted from the drawings.

First, the overall configuration of the embodiment will be described. Rotation synchronized with the time standard, which is decelerated and guided by a gear train placed on the front side of the main plate (on the opposite side from the dial plate), is transmitted to the second gear 2.

The second gear 2 is fixed to a second pinion 3, and a cylindrical pinion 4 is coupled to the second pinion with a torque above a certain level in the rotational direction, and concentrically with the second pinion 2 and the cylindrical pinion 4,
A planetary tube 5 and an hour wheel 6 are arranged.

On top of the planetary tube 5, there is a Hinoura axle 8, a Hinoura intermediate axle 10,
A pin 12 is fixed to the Hino-ura axle 8, and a Hino-ura wheel 7 is attached to the Hino-ura intermediate axle 10.

The rear intermediate wheel 9 is rotatably supported, and constitutes a planetary gear mechanism in which the cylinder pinion 4 is a sun wheel, the rear intermediate wheel 7 is a planetary wheel, and the rear intermediate wheel 9 is a planetary wheel.

On the other hand, the hour wheel 6 and the hour wheel 7a mesh together to form the same reduction gear train as a normal watch, which connects the hour wheel 4 to the hour wheel 7 and the hour wheel 6, and the hour wheel 4 has a minute hand. The hour wheel 6 supports an hour hand.

The Hino-ura pusher 13 holds the Hino-ura wheel 7 and the Hino-ura intermediate wheel 9 on the planetary tube 5, and also guides the ring gear 14 on the outer periphery, while at the same time being held down by the Hino-ura lever 15. It is a member for holding the cross-sectional position of the planetary tube 5, and is supported by the planetary tube 5 by a total of three pins: the Hinoura intermediate axle 10 and the Hinoura pressing pin 12.

A tooth profile is formed on the outer periphery of the planetary tube 5, and the position is intermittently determined one tooth at a time by a time control lever 16.

A ring gear 14 having tooth shapes formed on the inside and outside of a ring shape is arranged concentrically with the planetary tube 5, and the inner stepped side surface is guided by the outer circumference of the Hino back press 13, and the outer plane is The cross-sectional position is determined by pressing with the jump control lever 15.

The inner tooth profile of this ring gear meshes with the intermediate wheel 9, and the outer tooth profile engages with the calendar feed wheel 17, which is always engaged.
The structure is such that the time adjustment wheel 18 is engaged only when adjusting the time.

Next, to explain the operation during normal hand movement, during normal hand movement, the planetary tube 5 is fixed by the time jump control lever 16. The hour hand and minute hand are slowed down by a train of deceleration gears for normal hand movement, which is transmitted through the reverse wheel 7 and the hour wheel 6.

In addition, the calendar wheel is sent by a calendar feed gear wheel train consisting of a daily wheel 7, a daily intermediate wheel 9, a ring gear 14, a calendar feed wheel 17, and a calendar wheel 23.

When adjusting the hour hand, the rotational force from the crown is transferred from the winding stem and the Tsuzumi wheel to the hour hand adjustment wheel train (not shown) to the hour adjustment wheel 1.
9 and by rotating the planetary tube 5, the hino-ura wheel 7 and the hino-ura intermediate wheel 9 are made to revolve around the tube pinion 4.

Since the hour cylinder pinion 4 is normally moving, it does not rotate because it is bundled through the second gear 2. It is well known that rotation occurs at the same time.

Therefore, the hour wheel 6 that meshes with the Japanese back Japanese kana 7a rotates by an angle obtained by subtracting the effect of the rotation angle from the revolution angle of the Japanese Japanese Japanese Kana 7a.

The rotation angle of the hour wheel 6, that is, the hour hand, thus generated is the planetary tube 5.
For each rotation of one tooth formed on its outer periphery,
If the number of teeth of each part is set to 30 degrees (1 hour), the hour hand will rotate in 1 hour steps due to the action of the hourly movement lever 16.

Of course, it operates in the same way in both forward and reverse rotations.

The ring gear 14 is arranged to transmit rotations for calendar advance and time correction.

In a reduction gear train incorporating a planetary gear mechanism, the hour wheel 7 revolves as the hour hand is corrected and rotates around the hour wheel. The ring gear 14 having an internal gear is placed in a position where it is always engaged with the rear wheel 7 so that the rear wheel 7 meshes with the rear wheel 7 no matter where it is located, or the rotation can be taken out by this, or Either a double-structured hour wheel is placed at a different height from the back pinion to transmit the rotation to the calendar feed, and this is how the rotation is extracted.

Further, in order to take out the rotation of the time adjustment, as in the present invention, the time adjustment wheel 18, which can be attached and detached by operating an external operating member, is engaged with the ring gear 14, and by rotating the time adjustment wheel 18, the ring gear 14 is rotated. The hour wheel 6 is rotated by rotating the gear 14, and the intermediate wheel 9 meshes with the internal teeth of the gear 14, and the hour wheel 6 passes through the intermediate wheel 9 and the rear wheel 7.
, the cylinder pinion 4 is rotated to correct the hour and minute hands. At this time, the calendar feed wheel meshing with the external teeth of the ring gear also sends the calendar wheel in conjunction with the movement of the hour and minute hands.

Further, since the second pinion 3 and the tube pinion 4 are configured to slip with a constant torque, the front wheel train is not rotated.

The intermediate wheel in this structure is an intermediate wheel for making the rotation direction of the ring gear 14 the same during normal hand movement and during hour hand correction.

When the hour wheel 6 rotates in the forward direction during normal hand movement, the ring gear 14 rotates in the same direction as the hour wheel 6 through the hour wheel 6, the hour wheel 7 meshing with the hour wheel 6, and the hour wheel 6 through the intermediate wheel 9. When correcting the hour hand, when the hour wheel 6 is rotated in the forward direction, the hour wheel 7 and intermediate hour wheel 9 that mesh with it revolve around the hour wheel 6 in the same direction as the hour wheel 6. Therefore, the ring gear 14 also rotates in the same direction as the hour wheel.

Therefore, since the rotation direction of the ring gear 14 can be the same in both cases, the movement of the calendar wheel 23 can be completely linked to the movement of the hour and minute hands from the ring gear 14 through the calendar feed wheel 17.

However, if the intermediate wheel 9 is not provided and the wheel T is directly engaged with the ring gear 14, the direction of rotation of the ring gear during normal hand movement and when the hour hand is corrected is different, and when the hour hand is corrected, the hour hand A problem arises in that a discrepancy occurs between the movement of the calendar wheel and the movement of the calendar wheel, causing the calendar wheel to be sent at an arbitrary time.

In addition, by making this intermediate wheel a reduction gear consisting of two upper and lower wheels, the number of teeth of the ring gear that meshes with it can be reduced to create a wheel with a smaller diameter.

As another embodiment of the present invention, in the time adjustment method, the cylindrical pina 4
A tooth profile is formed on a part of the second pinion 3 arranged coaxially with the
Rotate this second pinion 3 by operating the external operating member,
One possible method is to rotate the cylindrical pinion, hinoshi wheel, and hour wheel that are fixed on the same axis, and the rotation of the calendar feed can be taken out from the hour wheel.

An embodiment showing these will be described with reference to an explanatory diagram in FIG. 3 and an assembled sectional view in FIG. 4.

First, to explain the configuration, the rotation is decelerated by a gear train arranged on the front side of the main plate (on the opposite side from the dial plate), and the rotation synchronized with the guided time standard is transmitted to the second gear 2.

The second gear 2 is torque-coupled with the second pinion 3, and slips when the torque exceeds a certain level, and the second pinion 3 is a time adjustment wheel that meshes with the time adjustment intermediate wheel 22.

A cylindrical pinion 4 is coupled to the second pinion 3 with a torque above a certain level in the rotation direction, and a planetary tube 5 and a first hour wheel 20 are connected concentrically to the second pinion 3 and the cylindrical pinion 4. A rotatable hour wheel 7 is supported around the hour wheel 8 fixed to the planetary tube 5, as in the present invention. A planetary gear mechanism is constructed in which numeral 4 is a sun wheel and hinoshi wheel 7 is a planetary wheel.

On the other hand, the first hour wheel 20 and the hour wheel 7a mesh with each other, forming the same reduction gear train as a normal watch, which connects the hour wheel 4 to the hour wheel 7 and the first hour wheel 20. is the minute hand, 1st
The hour wheel 20 supports an hour hand.

The Hino-ura pusher 13 is a member for holding the Hino-ura wheel 7 on the planetary tube 5 and at the same time holding the cross-sectional position of the planetary tube 5 by pressing the outer circumferential part with the Hino-ura pusher 15. It is supported by the planetary tube 5 by a genuine Hino press pin 12.

Teeth are formed on the outer periphery of the planetary tube 5, and the position is intermittently determined by each tooth by a time control lever 16.

The operations during normal hand movement and when the hour hand is corrected will not be explained because the planetary wheel mechanism operates in almost the same way as in the embodiment of the present invention.

Next, when taking out the rotation of the time adjustment, the time adjustment intermediate wheel 22 is rotated by operating the external operating member, and the second pinion 3 that meshes with it and the cylinder pinion 4 that is torque-coupled thereto are rotated. Further, the hour hand and minute hand are corrected by rotating the hour wheel 7 and the first hour wheel 20.

The hour wheel 23 has a second hour wheel 21 fixed to the first hour wheel 20. It is interlocked via a calendar feeder 17 that meshes with this.

Further, since the second gear 2 and the second pinion 3 are configured to slip with a constant torque, the front wheel train is not rotated.

As mentioned above, Hino back gear 7 (
In a calendar clock with time difference adjustment that does not use the ring gear 14 on the outer periphery of the planetary wheel, a double-walled hour wheel must be placed to send the calendar wheel, which increases the thickness of the movement.

Furthermore, in order to adjust the time, a tooth profile is formed on the second pinion 3 placed on the front side of the main plate, and in order to extract rotation from this gear, it is necessary to transmit the rotation transmitted from the external operating member to the endorsement wheel train to the front side. , the structure becomes complicated, and other embodiments have many problems.

According to the present invention, the structure is simplified by arranging the ring gear 14 on the outer periphery of the backward gear 7 (planetary gear) so as to mesh the calendar feed wheel, time adjustment wheel, and wheel.
We are now able to provide a thin and compact calendar clock with time difference correction that is highly reliable and low cost.

Further, as a conventional example, Publication No. 4518188 can be mentioned, and when compared with this, it will be understood that the mechanism of the present invention has been extremely simplified.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram showing one embodiment of the present invention. FIG. 2 is an assembled sectional view of FIG. 1. FIG. 3 is an explanatory diagram showing another embodiment of the present invention. FIG. 4 is an assembled sectional view of FIG. 3. 1...Main plate, 2...Second gear, 3...
...2nd kana, 4...tsutsukana, 5...
... Planetary tube, 6 ... Hour wheel, 7 ... Monument wheel, 8 ... Hinohura axle, 9 ... Hinohura intermediate wheel, 10 ...Shino Ura intermediate axle, 12... Yamano Ura Oshi Epin, 13... Shin no Ura Oshi work 14...
...Ring gear, 15...Chudaku control lever 16
...Time jump lever, 17...Calendar feed,
18... Time adjustment wheel, 19... Hour adjustment wheel, 20... First hour wheel, 21... Second hour wheel.
Hour wheel, 22... Time adjustment intermediate wheel, 23...
...Calendar wheel.

Claims (1)

[Claims] 1. A sun gear that is a minute hand shaft, a planetary gear that meshes with the sun gear and can revolve around it, an hour wheel that meshes with the planetary gear and is an hour hand shaft located concentrically with the minute hand shaft, and a planetary tube that supports the planetary wheel. and a lever for positioning the planetary tube in stages, and having a planetary gear transmission mechanism that can move the hour hand position intermittently in either forward or reverse directions by one hour. A planetary intermediate wheel is supported on a mat and engages with the planetary gear, and a ring gear is disposed on the outer orbit of the planetary intermediate wheel and is positioned concentrically with the sun gear. A calendar clock with a time difference correction device characterized by having a wheel train mechanism engaged with a vehicle train.