JPH02222858A - Time correction structure of timepiece - Google Patents

Abstract

PURPOSE:To enable a thinner shape and smaller size of a time piece without requiring any complicated working by building a slip mechanism with a jumper gear and a jumper pinion to allow the curtailing of the number of parts and a subassembly. CONSTITUTION:A jumper gear 4 has a shaft hole 4a comprising a semicircle, an opening and a jumper section 4c containing a spring 4b near the opening located at the center thereof and a tooth form is formed on the outer circumference thereof. A gear 4 is located sectionally between a 24 hour transmission gear 5 and a jumper wheel seat 6 and an arc circular part of the shaft hole 4a is pivoted at a tooth outer diameter of a jumper pinion 7. The jumper section 4c is pressed to engage the tooth form of the jumper pinion 7 by a force of the spring 4b to form a slip mechanism. The gear 4 is integrated as jumper wheel 3 being engaged with the jumper section 4c and the jumper pinion 7 and in the normal running pointers, the rotation of a cylinder 2 is transmitted to a sub hour wheel 8. The slip mechanism of the jumper wheel 3 generates a slip torque with the jumper section 4c overcoming the force of the spring 4b to override the tooth form of the jumper pinion 7.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a slip mechanism for adjusting the time of a clock by external operation.

[Conventional technology]

The time adjustment 4H construction of conventional clocks was made in 1837, 1983.
A structure is known in which only the hour hand is adjusted independently without stopping the time n1, as described in Japanese Patent Publication No. 7 Oyohi 11031/1983.

[Problem to be solved by the invention]

Guochika has more opportunities to travel abroad, and many people work overseas, and there are also countries like the United States that have time differences within the country, so the watch comes with a time difference correction function that allows you to easily correct the time difference without having to stop your watch. Demand for watches is increasing. but,
The reason why watches with time difference correction have not penetrated the market until now is that
This is because the time difference correction structure is very expensive and it is large compared to ordinary watches. The problems with the conventional structure are shown below.

The former structure of the conventional technology is completed by subassembling five small parts, and requires complicated work such as hooking the jump control lever onto the cam and pushing it into the hole of the 2nd wheel. Since the hour wheel has a guide hole for the jump control lever, it cannot be machined with a normal lathe and is a fairly expensive part. Furthermore, the first hour wheel, second hour wheel, and movement control lever are arranged in three stages in the center, which determines the thickness of the watch, which poses an obstacle to making the watch thinner.

In addition, the stationary structure includes the first hour wheel, second hour wheel, planetary holder, back presser [ ], time-shifting lever cylinder kana, day rear axle, and three day back presser bins for slipping. Not only does it require a large number of parts, but it is also an expensive structure due to the machining required to drill holes on the outer periphery of the planetary bridge and the subassembly of the rear axle and rear presser bottle, making it an expensive structure that is not cost-competitive. It's something that doesn't exist. Furthermore, since the Hinura wheel rotates around the tsutsukana, other parts must be placed out of the way of the Hinura wheel, and the timer lever also requires a considerable amount of flat space. This is a hindrance to the thinning of the skin.

The present invention is intended to solve these problems, and its purpose is to provide an inexpensive structure with a small number of parts, easy subassembly and processing, and an 11f structure with an M-type middle hem.
This provides a time adjustment structure for a fixed time a1.

[Means to solve the problem]

The time adjustment structure for hour R1 of the present invention includes a display member that displays the time, 1) a display wheel that fixes the display member a, a drive section that drives the hour d1, and a movement of the drive section that transmits the movement of the drive section to the display wheel. The transmission train has a correction wheel that transmits the operation of the external operation member to the display wheel, and the transmission wheel train or the display wheel has a slip mechanism, and when the external operation member is rubbed 1, the display member is Change the display! J! ijJ IIF, natoki R1
In the time adjustment structure, the slip mechanism includes a jumper gear having a shaft hole having a tooth profile on the outer periphery and an opening in the center, and a jumper portion located in the opening;
The jumper pinion is characterized in that the shaft hole of the jumper gear and the outer diameter of the gear are pivotally connected, and the jumper pinion is engaged with the jumper portion.

〔Example〕

Fig. 1 is a plan view showing the present invention, Fig. 2 is a state in which the watch of the invention is assembled into a case, Fig. 3 is a plan view showing the operation of the sliding mechanism and regulating mechanism, and Figs. 4 and 5 are FIG. 1 is an assembled sectional view showing an embodiment of the present invention.

In Figures 1 and 4, 2 has a main hour hand 33 and an hour wheel that displays the hours, 23 has a minute hand 34 and a second wheel that displays the minutes, and 24 has a second hand 35 and a second This is the fourth wheel that displays. Here, the main hour hand 33, minute hand 34, and second hand 35 are collectively called the center hand. 8 has a sub-hour hand 36 and is in the sub-hour, which rotates once every 24 hours. wear. 3 is an intermediate wheel that transmits the rotation of the cylinder ltt 2 to the secondary time S18, and has a sliding mechanism. Here, it is assumed to be a jumper car.

Jumper l (3) is pivoted to dowel 1a on the main plate.

The jumper wheel 3 has an enclosure structure, and includes a jumper gear 4 that is a first intermediate wheel that meshes with the hour wheel 2, a 24-hour transmission wheel 5 that is a second intermediate wheel that meshes with the auxiliary hour wheel, and a jumper wheel seat 6. , consists of jumper Kana 7. The jumper wheel seat 6, jumper pinion 7, and 24-hour transmission wheel 5 are integrated by caulking or the like. To explain the rejumper wheel 3 with reference to FIG. 3, the jumper gear 4 has a shaft hole 4a consisting of a semicircular part and an opening in the center, and a jumper part 4 including a spring 4b near the opening.
c is located, and a tooth profile that meshes with the hour wheel 2 is formed on the outer periphery. The jumper gear 4 has the above-mentioned 2 in cross section.
It is located between the 4 o'clock transmission wheel 5 and the jumper wheel seat 6, and the arc portion of the shaft hole 4a is pivoted to the both sides f and l of the jumper 7, and the jumper portion 4c It is attached to and engaged with the tooth profile by the force of the spring 4b, forming a sliding mechanism. The jumper gear 4 is connected to the jumper wheel 3 by the engagement of the jumper portion 4c and the jumper pinion 7.
During normal hand movement, the rotation of the hour wheel 2 is transmitted to the sub-hour clock 8. The sliding mechanism of the jumper wheel 3 generates sliding torque by the jumper portion 4c overcoming the force of the spring 4b and overcoming the tooth profile of the jumper pinion 7. This torque is about 2 gcm. Jumper Kana 7 has 24 teeth, and this sliding is 360°.
/24 steps. The reduction ratio of the hour wheel 2 and the jumper gear 4 is 2, and the reduction ratio of the engagement between the 24-hour transmission wheel 5 and the sub-hour gear 8 is 1. Therefore, the reduction ratio from the hour wheel 2 to the sub-hour wheel 8 is 2, and since the hour wheel 2 rotates once every 12 hours, the sub-hour wheel 8 rotates once every 24 hours, which is twice that, and is displayed in a 24-hour format. do. The sub-hour hand can also indicate a 12-hour system by changing the reduction ratio mentioned above.

Next, correction of the sub-hour hand will be explained with reference to FIGS. 1, 2, and 4. The sub-hour adjustment is performed by rotating the sub-winding stem 13, and only the sub-hour hand is corrected, while the center hour hand maintains the same time. 12 is a 24-hour wheel, and the sub-winding stem 13 is pulled out. It works in the same direction as the sub-time kana 8C.
mesh with.

Reference numeral 14 denotes a 24-hour bolt, which is biased by a spring so that the 24-hour wheel 12 is interlocked with the pulling operation of the sub winding stem 13. The position of the secondary winding stem 13 in the axial direction is determined by the engagement between the click portion 13a and the leaf spring 25. The wheel wheel 12 engages with the corner portion 13b of the sub L [13, and is energized by the 24 o'clock bolt spring.
The step portion 13c of the auxiliary winding stem 13 provides a perfect fit and positioning. When correcting the sub-hour hand, by pulling out the sub-winding stem 13, the 24-hour handwheel 12 is moved to the 12' position by the spring force of the 24-hour lock 14, and the sub-hour hand is moved to the 12' position. It meshes with 8C. In this state, the sub-O
By rotating the 1% 13, the sub hour hand 8 is rotated and the sub hour hand is corrected. When the sub-time side is corrected by the sub-winding stem 13, the center hour hand is not corrected. This is due to the difference between the torque of the hour wheel 2 and the slipping torque of the jumper wheel 3. The slip torque of the jumper car 3 is about 2 gcm as described above. On the other hand, the hour wheel 2 has a torque of about 20 gcm, and the torque at the middle of the jumper is about 40 gcm due to the reduction ratio. Therefore,
The slip torque of jumper wheel 3 and the torque of hour wheel 2 are 20.
There is a double difference, and while the hour wheel continues to operate normally, due to the slipping torque of the jumper wheel 3, only the sub-hour wheel 8, the 24-hour transmission wheel 5 that meshes with it, the jumper wheel seat 6, and the jumper pinion 7. rotates, and only the sub-hour hand is adjusted individually. The number of teeth of the jumper pinion 7 is 24, and the meshing between the 24-hour transmission wheel 5 and the sub-time type 8 is one-to-one, so that the 24-hour small line 24 divided steps are corrected. In other words, since there are 24 hours in a - cycle, a one-hour step correction is made. The advantage of having such a sliding mechanism is effective when conducting business transactions with foreign countries. For example, when conducting transactions between a Japanese trading company and an American trading company, the trading staff in Japan must always know the time in the United States.

At this time, if you display Japan time with the main hour hand and American time with the secondary time SI, you can know the time in both countries at the same time. If the business partner changes to another country, please refer to the supplementary volume 1.
By operating %13, it is possible to adjust the time of only the sub-hour hand without changing the Japan time displayed on the center hand.

Next, setting the time of the center hand will be explained. 11
10 is a main winding stem which is an external operating member, 10 is a wheel that is pivotally attached to the main winding stem 11 and is interlocked with the operation of the winding stem, and 9 is a regulation lever. By pulling the main winding stem 11 from the normal position in the direction of the second stage axis, the switching mechanism, which is not shown in the drawing but which engages with the main shaft 01411, is interlocked, and the winding stem 10 is moved from the back side of the main plate 1. The bolt 40 engaged with the wheel 10 moves it to the 10# position and meshes with the small iron wheel 39. In this state, by rotating the main winding stem 11, the correction is transmitted from the gear wheel 10 to the small iron wheel 39, the hour wheel 41, the second wheel & pinion 23, and the hour wheel 2. The regulation lever 9 is
Lo, 9b' in the first drawer of the 1st volume stem that engages and interlocks with the bolt 40 described in 13il on the opposite side of the main plate,
9b'' operates in the second stage.

At the I+7 position of the regulating lever 9b'', it engages with the jumper seat 6 and brakes the jumper seat 6 with the elastic force of the spring portion 9a.
Adjust rotation. The purpose of the regulation lever 9 is to prevent the rotation of the hour wheel 2 due to center hand correction from being transmitted to the sub-time dial 8. As mentioned in OCT, the slip torque of the jumper car 3 is about 2 gcm.

Therefore, by the coupling engagement between the regulating lever 9 and the jumper seat 6, the brake torque generated at the jumper seat 6 can be reduced to 2 g.
By setting the jumper wheel seat 6 and the jumper pinion 7 fixed thereto, the 24-hour transmission wheel 5 and the auxiliary hour wheel 8 that mesh with it are fixed, the sliding mechanism is activated, and only the jumper gear 4 rotates. S-n11! The rotation of 2 is not transmitted until 1jt8 when the regulation lever 9 is engaged with the jumper seat 6. The shape of the engaging portion 9b of the regulating lever 9 with the jumper seat 6 is an acute angle, and the tip thereof engages with the tooth profile of the jumper seat 6 to stabilize the generated brake torque. The slip torque of jumper car 3 is ensured to ensure a difference with the slip torque of jumper car 3. Furthermore, the force of the spring 9a of the regulating lever 9 is extremely small, thereby achieving the purpose. However, if the bending stress of the spring 9a has a margin and sufficient force can be obtained, the part 9b of the regulation lever 9 should be made flat, and the jumper seat 6 should also be a mere disc to generate the brake torque fr) using force only in the axial direction. For example, 0 or more mechanisms that can be used are effective when traveling to a foreign country with a time difference.
When traveling from Japan to the United States, you may arrive in the United States with both the center hand and the sub-time set to Japan time, and you may want to set the center button to American time and leave the sub-hour hand to display Japan time. be. In this case, since the adjustment mechanism is provided, only the center hand can be corrected.

If there is no regulating mechanism, the rotation of the hour wheel 2 will be directly transmitted to the auxiliary hour wheel.
After correcting the center clock to American time and pushing the main winding stem back to its original position, the sub-hour hand, which had been set to American time at the same time, will be re-corrected to the time difference between Japan and the United States using the sub-window tool 13. .

In other words, the operation is a two-step operation, which is complicated. In addition, it is necessary to remember the time difference with Japan time, and especially when walking through several countries, it is a great burden to remember the time difference between all those countries and Japan. is also likely to occur. However, if the adjusting mechanism of the present invention is used, only the center needle can be corrected with one winding stem operation, and anyone can use it without error.

Next, as shown in Figures 3 and 4, the main winding stem 11 and the sub winding e413
We will explain the operation when operating sequentially. The 24-hour dial 117.12 and the bolt 14 are interlocked with the sub-winding device 13, and enter the sub-hour hand correction state. Further, the gear wheel lO5 regulating lever 9 is interlocked with the main winding stem 11, and is in the state of correcting the center needle. Here, the main winding stem 11 and the sub-winding tool 13 can each be operated independently, so when the center hand is in the correcting state, the sub-winding tool 13 can be pulled up to bring the sub-hour hand into the correcting state. The reverse procedure is also possible.

Now, when both the center hand and the sub-hour hand can be corrected, when the sub-hour hand is corrected using the sub-winding tool 13, the sub-winding tool 13
To rotate, rotate the minor line 8 and adjust the time as usual.
In addition, 24 hour signal wheel 5, jumper wheel 7, jumper wheel seat 6
It is transmitted to. Here, the jumper seat 6 is regulated by the regulation lever 9, and this brake torque is
This torque is equivalent to the slipping torque of 2 gcm of the jumper wheel 3, and is minute compared to the force required by a human to grasp and turn the winding stem with their fingers. Therefore, the regulation lever 9 is forcibly disengaged from the jumper seat 6, but because it is pushed toward the jumper seat by elastic force, the tip 9b is rubbed by the teeth on the outer periphery of the rotating jumper seat 6. For example, the point 9b of the regulating lever will be in a state where the sharp tip is scraped off with a file, and the tip 9b of the regulating lever will wear out, losing its regulating ability.6 In order to avoid such problems, the present invention When you want to operate the rewind sequentially due to the involvement of the 24 o'clock bolt, use the 24 o'clock bolt,
Alternatively, the operation of the regulating levers is regulated by mutual engagement.

First, pull out the sub n513 and put it in the sub time side correction state,
The tip 14a of the 24-hour bolt 14 moves to the position 14b. In this state, if you pull out the 10th volume stem 11 and set it to the center 3r correction state, the niJ 24 o'clock bolt 14
The tip 14b of the regulating lever 9 comes into contact with the tip 9C of the regulating lever 9, and the tip of the regulating lever 9 does not operate and does not engage with the jumper seat 6.However, since the spring portion 9a is compressed, the main body of the regulating lever 9 The handwheel 10 is activated and the handwheel 10 moves to the needle alignment state.

In this state, the auxiliary hour hand correction by the auxiliary winding tool 13 is performed as usual, and the regulation lever 9 and the jumper seat 6 are not engaged, so that wear of the tip of the regulation lever as described in 011 can be avoided. In addition, when the main winding stem 11 is pulled out and the center needle is adjusted in the reverse procedure, the tip Q9c of the regulating lever 9 is 9
Move to c'.

The position of the tip 9c' of the regulation lever 9 is 24 o'clock bar 1.
4, so when the sub-winding stem 13 is pulled out in this state, the tip 14a of the 24-hour bolt 14 will come into contact with the regulation lever 9, and the 24-hour bolt will not operate. It does not interlock and does not mesh with the sub-hour pinion 8C.In other words, only the sub-winding stem 13 is pulled out, so even if you turn the sub-winding stem 13, it will just idle and the 24 o'clock position will not be corrected.
When the main winding stem 11 is pushed into the normal position from this state, the tip of the regulating lever 9 moves to the 9C position, disengaging from the 24 o'clock bolt 14, and normal 24 o'clock correction becomes possible. According to this structure, wear of the regulation lever can be prevented without adding any parts.

The overall appearance of this watch will be explained again with reference to FIGS. 1, 4, and 5. 15 is a day star wheel to which the day dial 37 is attached, 17 is a day wheel to which the day hand 38 is attached, 20 is a moon phase type that displays the moon phase, and 16 is a day star wheel, day wheel, and moon phase type that advance once a day. The position of the 0-day hire car 15, which is a date wheel, is determined by the rojanba 26, and is moved once a day by the date claw part lea of the date wheel to display the date. M car 17 has day jumper 2
The position is determined by 7a, and the day feed pawl portion 1 of the mouth wheel
The jumper 27a is integrally formed with the calendar holder 27, and when it is assembled to engage with the day wheel, the jumper 27a is sent to a position where it is sunk under the main body of the calendar holder 27. Become. As a result, the 0 day wheel 16 whose upper side holds the calendar and whose height is determined by the main plate at the lower side and ensures engagement with the day wheel is connected to the date wheel intermediate wheel 2a which is integrally provided with the hour wheel 2. The tooth profile 16c on the outer periphery of the 0-day dial 16, which is rotated by the hour wheel 2 and rotates once every 24 hours, is not all the same shape. When the If point is exceeded, the day wheel is rotated by the spring force of the jumper 27a, but at this time, the day wheel and the day wheel are in the locus of the day wheel, so the day wheel and the day wheel interfere, and the day wheel cannot turn completely. , the day of the week indication is incorrect.

In order to prevent this, the backlash between the date wheel and the intermediate date wheel is increased, and the amount of interference between the day wheel 17 and day feed pawl 18b is rotated forward and released. Therefore, the January age ratio 20, in which only the tooth profile of the part that meshes at the time of day feeding is made thin, and the other parts are made thicker in order to provide a margin for strength, is pivoted by the shaft hole 1b provided in the main plate 1. , moon phase jumper 28
0 month old wheel 1 whose position in the rotational direction is determined by
9 meshes with the moon phase mold 20 and rotates one month phase per day.

The moon phase intermediate wheel 18 meshes with the moon phase drive wheel 19.

The moon phase pattern 20 is moved by the day feed pawl 16b of the date wheel 16. The day shift pawl 16b engages with the moon phase intermediate wheel 18 to give it rotation. This rotation is transmitted through the moon phase intermediate wheel 18, the moon phase wheel 19, and the moon phase type 20. The two intermediate wheels of the drive wheel 19 are used, and since there is a degree of freedom in setting the position of the intermediate wheels, the outer diameter of the date wheel can be made compact, and parts can be arranged with high efficiency in a narrow space. Can be done.

This section explains how to quickly correct the day, day, and moon phase display.

The calendar correction transmission wheel 29 is located on the main winding stem 11, is supported by the shaft 1c of the main plate 1, and the day wheel 17 is arranged above. 30 is a second day correction intermediate wheel, 31 is a -day correction intermediate wheel, and 32 is a day correction transmission wheel. 42 is a calendar correction wheel, and A is adjusted according to the rotation direction of the calendar correction intermediate wheel.
direction, rotates in the B direction. First day correction intermediate car 3 in direction A
1) The 0 month age which engages with the second day correction intermediate wheel 30 and the date wheel 15 to transmit rotation and perform date correction.In the B direction, meshes with the day correction transmission wheel 32 and transmits rotation to the day wheel and performs day correction. A quick fix is
1 month age correction lever 2 performed by moon age correction lever 21
1 is attached to the shaft 1d of the main plate, and consists of a correction part 21aS, an operating part 21b, and a spring part 21c.The 1st month age correction is performed by pressing a button 43 provided on the exterior case. The position is biased in the rotation direction by a spring 21c and determined by the contact between the 21d portion and the base plate 1e. At the time of correction, by pushing the button 43, the button and the moon age correction lever 21b come into contact, and the correction part 21a moves to 21a', engages with the tooth profile of the monthly mold 20, and corrects it. When the correction is complete, press button 4
When the force pushing 3 is released, the moon phase correction lever 21 returns to its original position by the force of the spring 21c, and at the same time, the correction part 21a of the moon phase correction lever and the moon phase type are disengaged, and the jumper 2
Due to the spring force of 8, the lunar mold 20 is moved one pitch to the position.
It rotates until it stabilizes. The operating stroke of the button has a margin with respect to the reference stroke for moon age correction.

Therefore, the correction part 21a of the moon phase correction lever and the tooth profile of the moon phase mold 20 are locked, and the lever can be pushed further.

If the user presses the button while looking at the moon phase display and checking the correction status, the user will not have to apply much force, but if the watch falls and the button side falls down, the force will be 5000~ A force of 20,000 G is applied, and the button is pushed in by the length of the stroke. When such a large force is applied to the button, the operation part 21b and the correction part 2
A semi-rigid portion 21e provided in the middle of 1a is bent to prevent load from being applied to other parts, thereby preventing breakage.

In this embodiment, a jumper wheel is placed between the hour hand of the 12-hour system and the sub-hour hand of the 24-hour system. A watch with time difference correction is also fine.

〔Effect of the invention〕

As explained above, according to the present invention, by integrally forming the jumper spring within the jumper gear, it is possible to reduce the number of parts and subassembly, and it is possible to perform complicated machining using only press processing and simple lathe processing. Because you don't need
Significant cost reduction is possible. In addition, the space efficiency in terms of planar and tiered surfaces is good, and it is possible to downsize the watch to a FLL type.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing an embodiment of the present invention. FIG. 2 is a diagram showing the timepiece of the present invention assembled into a case. FIG. 3 is a plan view showing the relationship between the sliding mechanism and regulating mechanism of the present invention. FIG. 4 is a sectional view showing an embodiment of the present invention. FIG. 5 is a sectional view showing an embodiment of the present invention. 1... Main plate 2... Hour wheel 3... Jumper wheel 4... Jumper gear 5... 24 hour transmission wheel 6... Jumper wheel seat 7... Jumper pinion 8... Secondary hour wheel 9...Regulation lever 10...Set wheel 11...Main winding stem 12...24 hour hand wheel 13...Sub winding stem 14...24 hour bolt 33...Hour hand 36. ... Sub-hour hand and above Figure 2 Applicant: Seiko Epson Corporation

Claims (1)

[Claims] A display member that displays the time, a display wheel that fixes the display member, a drive unit that drives the clock, a transmission wheel train that transmits the motion of the drive unit to the display vehicle, and an operation of an external operation member that transmits the operation of the display vehicle to the display vehicle. In the time adjustment structure of a timepiece, the transmission wheel train or the display wheel has a slip mechanism, and the display of the display member can be changed by operating the external operating member, the slip mechanism The jumper gear has a shaft hole having a tooth profile on the outer periphery and an opening in the center, and a jumper portion located in the opening, and the shaft hole of the jumper gear and the outer diameter of the gear are pivotally connected, A time adjustment structure for a watch, characterized by comprising a jumper kana that engages with a jumper part.