JPS63249084A - electronic clock - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a switching mechanism for an electronic timepiece.

[Conventional technology]

Conventionally, in the switching mechanism of electronic clocks,
172781K As shown, the retaining part for positioning the oshidori is provided on the rigid part of the bolt, and the spring part of the bolt is installed on the oshidori shaft that does not move or on the external part of the oshidori where the position of the spring does not change with the movement of the oshidori. It was common to engage them.

[Problem that the invention seeks to solve]

However, in the structure shown in 411 Publication No. 56-172781, when moving from one stable position of the oshidori to another stable position, the external operating member feels a pleasant resistance (hereinafter referred to as a click feeling). A small mountain shape is formed between one stable position and the other stable position in the positioning engagement part of the Nikanugi. For this reason, after pulling out the crown to adjust the time display state, the moment the crown is pushed in, the crown overcomes the small mountain shape of the locking bolt that produces a click feeling, works in conjunction with the locking bolt, and moves directly above the winding. When the train enters and slides, it ends up being pushed towards the small iron train that is interlocking with the display correction. This movement causes the small train to rotate, causing the time display hands to jump and other problems. In other words, the watch has the fatal flaw that even if the user tries to set the time accurately, the watch will not be able to set the time accurately.

In particular, in an effort to reduce costs, the regulation lever that mechanically regulates the rotation of the gear train has been abolished, and an electronic regulation system that determines the pulse direction by determining the magnetic pole of the rotor for the step motor has been adopted. This problem is noticeable in watches that have been used for a long time. In addition, in order to prevent this problem when using a mechanical regulating lever, the engagement between the regulating lever and the gear train is released after the steering wheel passes over the small mountain shape of the bolt. It is necessary to design the timing as such, and if the design includes even the middle of the shape and position of one part, it is extremely difficult to completely prevent needle skipping. For this reason, the assembly process requires assembly and use of one part and one-handed correction, which is a major problem when such a structure is adopted.

The present invention has been made to solve such problems.The purpose of the present invention is to simplify the design of switching structures such as pushbuttons, bolts, and regulating levers, reduce defects in the assembly process, and make them cheaper and more reliable. Along with realizing an expensive watch,
By eliminating the mechanical adjustment lever, it is also possible to adopt a cheaper structure, providing watch users with a highly reliable, low-cost electronic watch that can accurately set the time.

Measures to solve problem C] The electronic timepiece of the present invention includes at least an external operating member.

A handle that engages with the nuclear external operating member, and a locking bolt fixed to the handle and formed with a rigid body part and a spring part so as to sandwich a T-bin, and for positioning a lock that regulates the stable position of the handle. It is characterized in that an engaging portion is provided in the spring portion of the bar.

[Effect]

According to the above structure of the present invention, the retaining part for regulating the stable position of the shishidori is provided in the spring part of the bolt.
Oshidori bZ Even when moving from one stable position to another, the rigid body part of the bolt, that is, the main body, only moves according to the predetermined cam shape, and the rigid body part of the bolt precisely transmits a click feeling to the external operating member. does not move, and needle skipping does not occur at all after needle alignment is completed.

〔Example〕

Embodiments of the present invention will be described in detail based on the drawings. FIG. 1 is a plan view of the switching structure of this embodiment. 1
Kemaki Makoto, 2Fi! ? It is tied to the winding stem 1 at the edge. 2
The bFi oshidori shaft rotates the oshidori 2 as the 1st roll stem 1 is pulled out and pushed in. Further, the rear shaft 2b is integrally molded with the rear shaft 2, and is positioned by a round hole in a base plate 16 made of a synthetic resin material. The push pin 2a is also integrally formed with the push rod 2, and protrudes in the opposite direction to the push rod shaft 2b. A cam-shaped portion 3b is formed by press working on the rigid body portion of the rear pin 2α-type #3, and a pin engaging portion Sa is formed in the same manner at the tip of the spring portion. In addition, by cutting the slotted part 3e at the last 1st slit of the bolt 3, positional deviations in intermediate processing steps are eliminated, and accurate positioning of the oshidori 2 is achieved, reducing the variation in the click feeling when switching. Efforts are being made to stabilize the structure. Reference numeral 4 denotes a stop wheel that engages with the bolt 3 and slides in the axial direction of the first winding stem 1. In FIG. This indicates that the person is stealing money. The small iron car 5 is meshed with the minute car 8, and the 1 minute car is 8 and the intermediate car 9. hair.

It meshes with the rotor 10. Therefore, when the winding stem 1 is rotated, the minute wheel 8 carrying the minute hand rotates and the rotor 1
It has a structure that rotates up to 0.

Therefore, in this watch, when the first winding stem 1 is pushed in, the first pulse is output from the integrated circuit, and from this pulse it is determined whether the rotor 10 has rotated or not.
When not rotating, an electronic regulation method is used in which a correction pulse is issued in the opposite direction to the initial pulse. The stator surrounding the 12-Fi rotor 10 is a coil block in contact with the 11-piece stator 12 and wound with copper wire. Here, the cam-shaped portion 3b described in m is formed only with a cam shape that determines only the appropriate amount of movement of the continuous loading car 4, and the winding stem 1 is pushed in, and the shift pin 2cL is rotated clockwise. Even so, it is clear that a situation in which the incoming train 4 is pushed out in the direction of the small iron car 5 and rotates the branch wheel 8 will not occur.

Moreover, when the winding stem 1 is pushed in, the winding stem 1 passes over the small mountain shape of the bottle engaging portion 3α formed at the tip of the spring, so that the winding stem 1 can have a good lick feeling. In addition, in such a switching structure, it is easy to process that the engagement part between the oshidori 2 and the cannula 3 is a round bottle with the oshidori 2, and it is also easy to control the quality of the product. Moreover, since the side surface of the round pin can be mirror-finished, there is less wear on the engaging part between the bolt 3 and the pin, and long-term wave stability and t-switching performance can be ensured. In addition, the shape of the engaging portion of the bolt 5 is very easy to design and has the effect of being able to set a stable shape because it can be set as a cam shape or a click shape for a round pin. The bolt spring 3C is soldered to a circuit board (not shown) and placed between the crystal oscillator 6 and the ground plate 16 in a curved cross-section (details will be explained with reference to FIG. 3)1. The force that separates the rolling stock 4 from the small iron car 5 when the winding stem 1 is pushed in is mainly generated by the spring 3G. When the winding stem 1 of the reset spring 3d is drawn out, the integrated circuit 15 is brought into contact with the circuit board adhesive pattern (not shown) with the tip of the spring.
+1 so as to enter a reset state in which the motor output pulse from ゛ is stopped. Here, the reset structure of this embodiment will be explained in detail using FIG. 2. FIG. 2 is a sectional view of the reset portion. In the plan view of FIG. 1, a circuit board 14 and an integrated circuit 15, which have been described above, are shown. The cross-sectional relationship between the battery positive terminal 131 and the train wheel receiver 17 is shown. It is held by a five-bar base plate 16 and a gear train support 17, and is a comb so that it can be moved in a plane.

The reset spring 301 is held between the reset spring 2 and the back surface of the integrated circuit 15, and due to the slight bending process, the reset spring 301 contacts the back surface of the integrated circuit 15, and the integrated circuit 15
It is configured to have the same potential as the positive terminal of. This is done when the tip of the reset spring 3d intersects the circuit board 14 cross-sectionally and the first winding stem 1 is pulled out to correct the needle.
It comes into contact with the reset pattern wired on the circuit board 14,
This was done to lower the reset pattern to a positive potential, and the main plate 16 and gear train bridge 17h are made of synthetic resin.

It has a conductive structure that is very effective when electrical conduction is busy and saves space. Note that the copper foil is pasted on the polyimide tape of the circuit board 14 by forming a pattern by etching, and the integrated opening path 15 is bonded by soldering. 1
Reference numeral 3 denotes a battery positive terminal, which is electrically connected to the positive terminal of the electrolyte, and also serves as a presser for the circuit board 14. Shishidori shaft 26#-t It is integrally molded with the Shishidori 2, and the base plate 1
It engages with the round hole 6. The hole in the main plate into which the oshidori shaft 2b is inserted has a two-stage hole diameter so as to escape the tip of the oshidori shaft 2b, and when removing the first winding stem 1, the oshidori 2 is rotated cross-sectionally, as shown by the two-dot chain line. Care has been taken to ensure that the hole in the base plate does not deform even under extreme conditions.

FIG. 3 is an n-plane view of the crystal resonator portion. crystal oscillator 6
is soldered to the copper foil pattern formed on the circuit board 14, and the two vibrator supports formed on the base plate 16 at different heights are arranged so that the soldering part is higher than the other by parts 16α and 16b. The receiver is closed and the battery positive terminal 1
3 and is fixed by a second vibrator pressing spring 13α. Connect the vicinity of the vibrator valve spring 13α to the circuit board 14 using the battery positive terminal 13 screw 18. The main plate 16 is fixed via the coil block 11 and the stator 12, and the tip of the oscillator valve spring 13α is bent upward and connected to the back cover 19 of the watch, so the crystal oscillator 6 is securely fixed to the main plate 16 through the stator 12. This makes it possible to fix it to the base plate 16. This prevents rate shifts due to external disturbances such as drops and vibrations, resulting in a highly reliable watch body. Here 1.
The bolt spring 3c of the bolt 3 is bent down and placed below the crystal oscillator 6, that is, between it and the base plate 16, as explained in FIG. With this in mind, the soldering part is raised to minimize the amount of bending of the crystal sensor 6 locking spring 3C, and the soldering part is raised so that the oscillator valve spring 13α can be placed above the crystal oscillator 6. The opposite part of the spring is lowered toward the main plate 16 (it is arranged diagonally). Also, the middle of the spring is bent up so that contact continuity can be established with the crystal oscillator 6 of the bolt spring 3c. The terminal 3 is set to the same potential as the battery positive terminal 15. This structure is extremely effective and reliable as a method of establishing conduction in the n-plane direction in a limited planar space, and in this watch body, the second
As explained in the figure below, in addition to the contact conduction between the back surface of the integrated circuit 15 and the reset spring 3d, there is positive conduction at two places during reset, making it possible to dramatically increase the reliability of conduction. There is. In this embodiment, a two-hand watch without a mechanical adjustment lever has been described, but the same effect can be obtained with a five-hand watch with a adjustment lever. or,
Regarding the positive conduction during reset, I mentioned the structure that establishes conduction at two places, but even if only one of them is conductive, it is possible to obtain a sufficiently reliable conduction.

〔Effect of the invention〕

As described above, according to the present invention, by providing the engaging part for positioning the oshidori in the spring part of the bolt, even if the oshidori moves from one stable position to another stable position,
The rigid part, or main body, of the cannula simply moves according to the predetermined cam shape.

The rigid body part of the bolt does not move in order to transmit the click feeling to the external operating member, and needle skipping does not occur at all after needle alignment is completed. For this reason, the conventional timing-related convention of canceling the regulation after the needle has finished moving and the possibility of needle skipping is eliminated is freed, and the design 1 is easy to assemble and has good after-sales service. can be realized. Furthermore, even the elimination of the regulation lever makes it possible to achieve 40T performance, making it possible to provide the market with inexpensive and highly reliable watches. ′

[Brief explanation of the drawing]

FIG. 1 is a plan view of the switching structure. FIG. 2 is a sectional view of the reset section. Figure 3 is an h-plane view of the crystal oscillator section. 1. Winding stem 2. Shishidori 3. Bolt 4. Tsuzumi wheel 5. Small iron car 6. Crystal wheel 8. Minute wheel
9. Intermediate wheel 10. Rotor 11. Coil proof 12.
- Stator 13... Battery positive terminal 14... Circuit board 15... Integrated circuit 16... Base plate 1
7... Gear train bridge 18... Screw 19... Back cover and above Applicant: Seiko Epson Corporation 13 9G1 Box end 14th name plate 15#--Number 17 Gear train missing Figure 2

Claims (1)

[Claims] At least an external operation member, a handle that engages with the external operation member, and a bolt formed with a rigid body part and a spring part so as to sandwich a pin fixed to the handle, and for regulating the stable position of the handle. An electronic timepiece characterized in that a positioning engagement part is provided on the spring part of the bolt.