JPS6216699Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a regulation/resetting structure for a small electronic watch.

[Conventional technology]

In recent years, as mobile watches have become more fashionable, there has been a demand for smaller and thinner watches. In order to meet this requirement, it is necessary to make batteries smaller and
In addition to thinning and downsizing the motor, the gear train and
It is necessary to save space in the switching section and the adjustment/reset section.

However, the conventional regulation/reset mechanism
As shown in the figure, the regulation lever 1 has two spring parts 1.
Most structures have springs a and 1b, in which the spring 1a generates a force for regulating the gear train, and the spring 1b performs resetting. A conventional regulation/reset structure will be explained below with reference to the drawings.

In the normal carrying state, the regulating lever 1 contacts the spring hook pin 6 with an initial deflection, and a force is constantly acting to rotate it to the left, and the regulating lever degree determining part 1c hits the winding stem 3, setting the degree. has been done. In this case, there is a gap between the regulating portion 1d of the regulating lever 1 and the fifth gear 5 of the front wheel train, and between the regulating lever spring portion 1b and the reset pin 4, and the hands of the watch are moving normally. Next, pull out the winding stem 3 to 3a,
The regulation lever adjustment part 1c is disengaged from the winding stem 3, the regulation lever 1 is rotated by the spring force of the spring part 1a, and the regulation lever regulation part 1d comes into contact with the fifth gear 5 to regulate the wheel train. . At this time, the regulation lever spring part 1b is pressed against the reset pin 4 with a certain degree of deflection to prevent the reset pin 4 from coming into contact with each other due to variations, thereby resetting the circuit.

In the case of this structure, the regulating lever has a spring part that applies a regulating force, a spring part that resets, and a regulating part independently as described above, and the regulating lever requires a considerably large space to operate. There is.

[Problem that the invention attempts to solve]

The present invention eliminates the above-mentioned drawbacks and provides an optimal adjustment/reset structure for a small and thin electronic watch that can be placed in a small space.

[Means for solving problems]

The regulation/resetting structure of the electronic timepiece according to the present invention includes an external operating member, an oshidori that operates in conjunction with the axial movement of the external operating member, and a pin provided on the oshidori that engages with the base plate and the gear train holder. A regulation lever that selectively contacts a gear held in the circuit board to regulate the gear and reset the circuit by selectively connecting to a reset pattern provided on the circuit board, and a regulation lever that suppresses upward movement of the regulation lever. In the adjustment/reset structure for an electronic timepiece, the adjustment lever includes an engagement part that engages with a pin provided on the rear cover to determine the position, and an engagement part that is formed integrally with the engagement part. an elastic section that extends under an IC mounted on the circuit board with a bend so as to bypass the IC; and a tip portion of the elastic section that is shorter than the elastic section and extends in one direction. a regulating part that passes through the lower surface of the train wheel bridge and presses against the gear to regulate the gear; and a reset part that is provided on the other end of the elastic part and presses against the reset pattern to reset the circuit. It is characterized by being provided with.

〔Example〕

Examples will be described below.

FIG. 2 shows an assembled plan view of a vertically elongated model movement with narrowed 3 o'clock to 9 o'clock positions, which employs the adjustment/reset structure of the present invention, and FIG. 3 shows a cross-sectional view.

The battery 14 is insulated from the main plate 30 by an insulating plate 29, fixed to the gear train bridge 12, and fixed to the set screw 26.
The positive terminal 22 is electrically connected to the stator 15, the positive terminal 22 fixed via the coil block 13, and the negative terminal 19 insulated from the ground plate 30 by the insulator 20. The gear train is for two hands, consisting of an hour hand and a minute hand, consisting of a second wheel & pinion 10, a third wheel & pinion 9, a fourth wheel & pinion 8, and a rotor 7. Bearing and set screws 23, 24
Fixed by The stator 15 is located between the main plate 30 and the second bridge 11 in the thickness direction, and the coil block 13 is stacked on top of the stator 15. One side is connected with a set screw 26 via a positive terminal 22, and the other side is bonded to the coil block 13. The coil board 31 and the circuit board 21 overlap each other and are fixed with a set screw 25 via a circuit receiver 32. The circuit block includes a circuit receiver 32, a circuit board 21, a crystal unit 17,
It consists of a MOS-IC 16 and a speed/speed switch 18 that adjusts time accuracy by switching between logical speed and speed, and is fixed by setscrews 25, 23, and 27.

The regulation lever 1 includes a rotating shaft 2 with which the oshidori 33 engages, an engaging portion 1k that engages with a pin 33a installed on the oshidori 33 to determine its position, and the engaging portion 1k.
An elastic part 1a extending with a bend 1i that bends the MOS-IC passes under the MOS-IC 16 and extends to the rotor 7, and the tip part has a gear regulating part 15 in one direction, A circuit reset portion 1g is provided in the other direction, and the engaging portion 1k is assembled into the main plate 30 with a gap by a plastic holding member 28. The pressing member 28 is 28
Hold the dowels a and 28b and fit them into the holes in the base plate with tightness.

Since the elastic part 1a of the regulating lever 1 is provided with a bend 1i that bends the MOS-IC, the reaction force of this spring causes the part 1h of the regulating part 1f to bend into the gear train bridge 1.
2 and the reset portion 1g are securely pressed against the circuit board 21 with an initial deflection.

Next, I will explain the operation of the regulation lever.
When the winding stem 3 is pulled out from the carrying state, the handle 33 engaged with the winding stem 3 rotates counterclockwise about the rotating shaft 2 and stops at a predetermined position determined by the switching member. As a result, pin 3 of Oshidori 33
The regulating lever 1, which has a bend 1i on the elastic part 1a formed integrally with the engaging part 1k that engages with the engagement part 3a, also rotates around the rotating shaft 2, and the regulating lever 1 whose height is determined by the gear train bridge 12 rotates around the rotating shaft 2. The 1h portion of the regulating portion 1f provided at one end of the elastic portion 1a of the lever 1 engages with the rotor pinion 7a as shown in 1r for regulation by having a spring deflection amount 34 corresponding to the necessary regulating force. However, the reset portion 1g provided at the other end of the elastic portion 1a of the regulation lever 1 moves while being in pressure contact with the circuit board 21, contacts the reset pattern 21a provided on the circuit board 21, and resets the circuit. Reset. As described above, the regulation lever 1 of this embodiment
The reset contact is fixed by a single elastic part 1a integrated with the engaging part, using the spring property in the plate thickness direction, and the force necessary for adjustment is applied by the spring property in the plane direction.
By arranging the regulating part 1f and the reset part 1g at the tip of the part a, only one elastic part 1a is required, and the elastic part 1a is bent 1i to form a MOS-IC.
Since it can be stacked underneath, it saves space in the plane direction necessary for adjustment and reset operations, and the elastic part 1a having the bending part 1i is always in contact with the base plate due to the reaction force of being pressed against the reset part 1g. Because of this, even if there is a small gap between the MOS-IC and the MOS-IC, it will not come into contact with the MOS-IC during operation, and it has the great effect of saving space in the thickness direction as well.

In addition, since the contact point with the reset was conventionally made using a single spring section arranged in a plane, the position of the spring tip was subject to variations in the stroke due to variations in processing and engagement with other parts. However, in the case of this embodiment, the distance from the regulating portions 1f and 1h of the regulating lever 1 to the reset portion 1g and the rotor pinion 7a are
Since the reset position is determined only by the relationship between

Furthermore, since the regulating section and the reset section are provided at the tip of one elastic section, the relative positions of the regulating section and the reset section do not change and they operate in synchronization, so that the timing of regulation and reset can be reliably determined.

[Effect of idea]

As described above, the present invention includes an engaging part that engages with the pin of the adjustment lever, and an elastic part that is integrally formed with the engaging part and bends the IC.
A regulating part and a reset part are provided in two directions at the tip of the elastic part, and the elasticity of the elastic part in the plane direction and the plate thickness direction is used to regulate the gear and reset the circuit in synchronization with the external operating member. As a result, contact between the gear and the reset pattern is ensured, the space occupied by the elastic part can be saved and the shape of the elastic part can be simplified, and the elastic part can be curved below the IC. Therefore, even if they are placed one on top of the other, the elastic part is always in contact with the main plate side due to the reaction force of bending, so it is pressed against the gear train or circuit board without contacting the IC, so resetting and adjustment can be performed reliably. At the same time, space can be saved in the thickness direction as well.
Furthermore, the bending adjusts the spring force and controls the pressure contact force with the pattern on the circuit board. Furthermore, since the adjustment part and the reset part are formed at the tip of the elastic part, and each length is formed to be shorter than the elastic part, the relative positions do not change and they operate synchronously, allowing for reliable adjustment and reset. Can be made like a women's bracelet,
It is possible to provide an optimal regulation/reset structure for small and thin electronic watches. On the other hand, since the regulating part is disposed below the train wheel bridge, upward movement of the regulating part is prevented, and pressure contact with the train wheel is ensured.

[Brief explanation of the drawing]

FIG. 1 shows a plan view of a conventional embodiment, FIG. 2 shows an assembled plan view of an embodiment of the present invention, and FIG. 3 shows an assembled sectional view of an embodiment of the present invention. 1... Regulation lever, 2... Rotating shaft, 3... Winding stem, 4... Reset pin, 5... Fifth wheel, 6...
Spring hanging pin, 7... rotor, 8... fourth wheel,
9... Third wheel, 10... Second wheel, 11... Second bridge, 12... Gear train bridge, 13... Coil block,
14...Battery, 15...Stator, 16...
MOS IC, 17...Crystal unit, 18...Range/speed switch, 19...Minus terminal, 20...Insulator, 21...Circuit board, 22...Positive terminal, 2
3, 24, 25, 26, 27... Set screw, 28
... Pressing member, 29 ... Insulating plate, 30 ... Base plate,
31...Coil board, 32...Circuit receiver, 33...
Oshidori.

Claims (1)

[Scope of utility model registration request] an external operating member; a pusher that operates in conjunction with the axial movement of the external operating member; and a pusher that engages with a pin provided on the pusher and selectively abuts a gear held on a main plate and a gear train bridge. a regulation lever for regulating the gear and selectively connecting to a reset pattern provided on the circuit board to reset the circuit;
In the regulation/resetting structure for an electronic timepiece, the regulation lever has an engaging part that engages with and positions a pin provided on the adjustment lever; an elastic part formed integrally with the engaging part and extending with a bend so as to pass under the IC mounted on the circuit board and bypass the IC; and an elastic part formed shorter than the elastic part. a regulating part provided in one direction at the distal end of the elastic part and passing through the lower surface of the train wheel bridge and press against the gear to regulate the gear; and a regulating part provided in the other direction at the distal end of the elastic part for regulating the gear. A regulating/resetting structure for an electronic watch, characterized in that it is provided with a reset part that presses against a pattern and resets a circuit.