JP2001221870A - Switching structure for electronic clock - Google Patents

Abstract

PROBLEM TO BE SOLVED: To conduct the mode switching and display correction of an electronic clock through only the operation of a winding stem. SOLUTION: In the switch structure of the electronic clock, a gear section which is meshed with a mode switching transmission wheel and pinion 9, constituting a mode switching wheel train is formed on a clutch wheel 26 which is interlocked with the operation of a winding stem, and in addition, a cam section 26c is installed to the wheel 26. In addition, the switch of the timepiece is composed of a switch lever engaged with the cam section 26c, a setting switch which is brought into electrical contact with a display correcting pattern arranged on a circuit board according to the direction of rotation of the winding stem, and a regulating spring which positions the switch lever. Since the transmission wheel and pinion 9 are positioned on the side of the winding stem opposite to the switch lever, rotations can be transmitted easily from the clutch wheel 26 to both the transmission wheel and pinion 9 and switch lever, and the mode switching and display correction of this electronic clock having a plurality of mode displays can be performed through only the operation of the winding stem.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switch structure for mode switching of an electronic timepiece having a plurality of mode displays and display correction in the switched mode.

[0002]

2. Description of the Related Art FIG. 8 is a plan view showing a main part of a conventional electronic timepiece, and a mode display switching structure when a winding stem 1 as an external operating member is in a normal use state position, and the mode display. 3 shows a display correction switch structure in a code display. FIG. 9 is a plan view showing the main part of the winding stem 1 shown in FIG. 8 in the first stage, and FIG. 11 and 1
2 is a sectional view of a main part of FIG. The winding stem 1 is positioned by a mandrel 2 and a back presser 3 which are conventionally known winding stem regulating members.

As shown in FIGS. 8, 9, 10 and 11, a head 2a, a shaft 2b and a shaft 2c are formed on the mandrel 2, and a rotating shaft 4a provided on the main plate 4 is rotated. The identification switch 5 having a long hole 5a which is disposed as a center, the head 2a is engaged with the groove 1a of the winding stem 1, and the shaft 2b is engaged with the shaft 2b is provided on the main plate 4. It is rotatably mounted on the rotating shaft 4b. The identification spring portion 5b of the identification switch 5 is a circuit board 6 shown by a two-dot chain line.
The first discrimination pattern 6a and the second discrimination pattern 6b, which are display switching patterns, are disposed so as to be in electrical contact with the position where the winding stem 1 is pulled out. More specifically, as shown in FIG. 9, at the first position of the winding stem 1, the identification spring portion 5b is at a position where it comes into contact with the first identification pattern 6a, and an identification signal is sent to a clock circuit (not shown). Is sent, and the date display (not shown) can be electromagnetically corrected. FIG.
0 at the second position of the winding stem 1, the identification spring portion 5b
Is positioned at a position where it contacts the second identification pattern 6b, so that the time system can be electromagnetically corrected.

[0004] A cannula 7 arranged so that a rotational force is applied counterclockwise by a spring portion 7 a around a rotation shaft 4 c provided on the main plate 4 is guided by a shaft 2 C provided on the mandrel 2. Is positioned at the notch 7b of the cannus 7, and the head 7c of the cannus 7
As shown in FIG. 11, is engaged with the outer peripheral groove 8a of the thumbwheel 8 mounted on the corner 1b of the winding stem 1 so as to be linked with the rotation of the winding stem 1.

A gear portion 8b is formed on an end face of the pinion wheel 8, and the gear portion 8b rotates around a rotation shaft 4d provided on the main plate 4 when the winding stem 1 is in a normal use state. The mode switching transmission wheel 9 is engaged. The mode
The rotation of the mode switching transmission wheel 9 is controlled by the mode switching intermediate wheel (1) 10, the mode switching intermediate wheel (2) 11, and the rotating shaft 13 having the respective rotation center axes on the main plate 4 fixed thereto. A mode switching wheel train is configured to be transmitted to the mode switching vehicle 12.

The circuit board 6 is mounted on the mode switching vehicle 12.
Mode switching patterns 6C, 6d, 6e, 6
A mode changeover switch spring 14 formed so as to electrically contact a rotary switch f and 6g as a rotary switch is mounted and positioned by shaft portions 12b and 12c provided on the mode changeover wheel 12. The required mode switching can be performed through the mode switching wheel train by rotating the winding stem 1. Numeral 15 contacts the tooth portions 12a provided with the number of teeth of the mode display (not shown) on the mode switching wheel 12, and positions the mode switching wheel 12 at a predetermined position. It is a mode jump control spring for it. At the first and second positions of the winding stem 1, as shown in FIGS. 9 and 10, the canker 7 is interlocked with the mandarin duck 2 and the cutout portion 7b
And the gear portion 8b of the pinion wheel 8 is disengaged from the mode switching transmission wheel 9.

As shown in FIG. 11, the rotating shaft 13 fixed to the mode switching wheel 12 has a shaft hole 16a of a circuit supporting plate 16 which is a metal member for supporting the circuit board 6.
And a shaft hole 4 f of the base plate 4. A mode hand 18 for indicating a mode display (not shown) written on a dial 17 is provided at the end 13a of the rotating shaft 13.
Is stuck. Reference numeral 19 denotes a mode wheel train supporting plate supporting the mode switching wheel train, and reference numeral 20 denotes a date plate driven by a date wheel driving wheel train (not shown).

Reference numeral 21 denotes a Putz-type display correction button of a conventionally known structure housed in a watch exterior case (not shown). The display correction spring 16b formed integrally with the circuit support plate 16 pushes the mode display correction button 21 to the position 21 ', so that the display correction spring 16b
b ', the display correction pattern 6d disposed including the side surface 6' of the circuit board 6 is electrically contacted with the display correction pattern 6d, and a correction signal is supplied from a clock circuit (not shown) to a clock driving mode. It is provided at a position where it is engaged with the display correction button 21 so as to be sent to a display (not shown) and to make a required correction via a timepiece drive train (not shown). The correction amount and the correction speed are normally controlled by the number of times of pressing the display correction button 21 and the time during which the electrical contact is made.

[0009]

As described above, the mode switching in the conventional example is performed by transmitting the rotation of the mode switching wheel train by rotating the winding stem 1 in the normal use state position. Either the first stage or the second stage of the winding stem 1 is selected, and the selected mode display is corrected by pressing the display correction button 21. For example, when the normal time is to be corrected, first, a rotation operation is performed at the normal use state position of the winding stem 1, and the normal time mode is selected by operating the pointer of the mode hand 18; The winding stem 1 is pulled out to the position of the second stage so that the time can be adjusted. Next, the display is adjusted to a required time by pressing the display correction button 21.

Therefore, conventionally, a mode switching operation having a plurality of mode displays is performed by the winding stem 1, and the mode after the switching is performed.
The display correction was performed by pressing the display correction button 21.

However, the separate provision of the display correction button 21 in addition to the winding stem 1 as an external operation member has been a restriction on the design of the timepiece and a hindrance in reducing the size of the timepiece.

An object of the present invention is to solve the above problems and to provide an electronic timepiece with better operability.

[0013]

In order to achieve the above object, the present invention provides a clock circuit for generating a time signal, a winding stem which is an externally operable member which is operable in the axial direction and operable to rotate, and A winding stem restricting member for setting the stem at a plurality of predetermined positions in the axial direction; and an operation based on a rotating operation of the winding stem when the winding stem is regulated to the normal use state position by the winding stem regulating member. A first switch for generating a first control signal for controlling the timepiece circuit; and a rotation operation of the winding stem when the winding stem is regulated to the non-normal use state position by the winding stem regulating member. A switch structure of an electronic timepiece having a second switch that operates based on the second switch and generates a second control signal for controlling the timepiece circuit, and an identification switch that identifies a position of the winding stem.

The winding stem regulating member is engaged with a shaft portion of the winding stem,
It is composed of an oscillating mandrel that rotates in conjunction with the axial operation of the winding stem, and a spring member that regulates the turning position of the oscillating mandrel. The first switch meshes with a gear portion provided on the thumbwheel. The rotating mode switching transmission wheel and the rotation from the mode switching transmission wheel are transmitted and selectively contact a plurality of mode switching patterns provided on a circuit board to display a plurality of modes. It is composed of a mode switching vehicle for switching,
A second switch is provided with the thumbwheel interlocked with the turning operation of the winding stem, a switch lever which swings by engaging a cam portion formed on the thumbwheel, and the winding stem interlocked with the switch lever. And a correction switch that contacts a correction pattern provided on the circuit board in accordance with the rotation direction of
The mode switching transmission wheel is disposed on the opposite side of the winding stem from the switch lever.

Further, the second switch further comprises a regulating spring which contacts the switch lever in order to regulate the switch lever to the neutral position.

The identification switch is a switch that swings in conjunction with the rotation of the mandrel and contacts a winding true position identification pattern provided on the circuit board.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 is a plan view of a main part in which the winding stem 1 is positioned in a normal use state position.
A back presser 3 which is a spring member for restricting the rotation of the mandrel 2
The identification switch 5 is the same as that of the conventional example. FIG. 2 shows FIG.
FIG. 3 is an enlarged view of a main part of FIG. 2 from which some parts are not overlapped. FIG. 4 is a plan view of an essential part of the winding stem 1 pulled out to the first stage. The identification spring 5b of the identification switch 5 is mounted on a circuit board 28 on which the clock circuit 25 shown in FIG. The first identification pattern 28a, which is a negative pattern, is electrically contacted, and the date can be corrected. FIG. 5 is a plan view of a main part in a state where the winding stem 1 is positioned at the second stage, and shows the identification spring portion 5.
b is in electrical contact with a second identification pattern 28b, which is an identification pattern, so that the time system (not shown) of each of the normal time, the alarm time, and the local time can be corrected. is there. In this embodiment, the number of modes has four modes of the date, the normal time, the alarm time, and the local time, respectively. 2 each so that it can be corrected in a short time even from the direction
Modes, that is, 8 modes are circumferentially indicated (not shown) at predetermined positions on the dial 18 and are configured so as to be indicated by the mode hand 18 shown in FIG. ing.

FIGS. 6 and 7 are cross-sectional views of main parts of FIG.
An outer peripheral groove 26a and a gear 26b and two cam portions 26c projecting from the outer peripheral portion are formed on the ratchet wheel 26, and the ratchet wheel 26 is formed at a corner 1b of the former 1 by the former 1
Are engaged so as to interlock with the rotation of. A switch lever 22 is swingably mounted on the base plate 27 above the winding stem 1 in a cross section about a rotation shaft 27e provided on the base plate 27 as a center of rotation. As shown in FIG. 2, FIG. 4 and FIG. 5, the end portion has a symmetrical protruding portion 22a at a position where it engages with the cam portion 26c.
22a 'and a switching shaft 22c is provided. Reference numeral 23 denotes a correction switch.
Reference numeral 3 has a bifurcated notch 23a and a correction spring 23b, and is disposed so as to be swingable about the rotation shaft 27d on the switch lever 22 so that the bifurcated notch 23a is The second switch of the present invention is constituted by interposing the switching shaft 22c and interlocking with the switch lever.

The regulating spring 24 has a V-shaped tip 24a at its tip.
The switch lever 22 is pressed against the switching shaft 22c with a required clockwise rotational force, and positions the switch lever 22 at the neutral stable position shown in FIG. The correction switch 23 is also linked to the switch lever 22 and is in the neutral stable position.

The first correction pattern 28h and the second correction pattern 28i are required display correction patterns provided on the circuit board 28, respectively, and the correction spring portion 28b is shown in FIGS. As shown in FIG. 3, in the neutral stable position of the switch lever 22, the first correction pattern 28h
And the second correction pattern 28i.

In FIG. 4, the winding stem 1 is located at the first stage,
The date can be corrected, but as a correction operation for advancing the date (not shown), turning the winding stem 1 in a counterclockwise direction causes the cam portion 26c provided on the knob wheel 26 to rotate. The projecting portion 22 of the switch lever 22
a, and the switching shaft 22c of the switch lever 22 shown in FIG. 7 is rotated clockwise around the rotating shaft 27e to a position 22c 'shown by a broken line against the regulating spring 24. , The correction switch 23 is also rotated in the same direction, and the correction spring portion 23b is moved to the first correction pattern 28.
h, a correction signal, which is the second control signal of the present invention, is sent to a clock drive motor (not shown) and a required date correction is made via a date plate drive train (not shown). Can be performed. Further, by rotating the winding stem 1 clockwise, the cam portion 26c is engaged from the protruding portion 22a 'direction, and the correction spring portion 23b is moved to the second correction pattern 28.
The date can be turned back to the position where it comes into contact with i (not shown).

As described above, the knob wheel 26 has:
Since two cam portions 26c are provided,
Per rotation, the required correction signal can be transmitted twice, and when the switching shaft 22c deviates from the rotation locus of the cam portion 26c, the spring force of the regulating spring 24 moves along the V-shaped portion 24a. The winding stem 1 is returned to the neutral position and the continuous rotation of the winding stem 1 is enabled.

In FIG. 5 in which the winding stem 1 is positioned at the second stage, the time system can be corrected by the same operation of the winding stem 1. That is, the winding stem 1 can be advanced by rotating it counterclockwise, and can be delayed by rotating it clockwise.

In the position where the winding stem 1 is normally used, the gear portion 26b provided on the end face of the pinion wheel 26 has a rotation center as a shaft 27d as shown in FIG.
The rotation of the knob wheel 26, that is, the rotation of the winding stem 1 has the respective rotation center axes on the main plate 27 as in the conventional example. A mode switching intermediate wheel (1) 10, a mode switching intermediate wheel (2) 11, and a mode switching wheel 12 to which a rotating shaft 13 is fixed.
The mode change train wheel is configured to be transmitted to the vehicle. The mode switching wheel 12 is disposed as a rotary switch so as to be in electrical contact with mode switching patterns 28C, 28d, 28e, 28f and 28g formed on the circuit board 28. The mode changeover switch spring 14 is connected to the
It is positioned and mounted on the shaft portions 12b and 12c provided on the mode changeover wheel 12, operates based on the rotation operation of the winding stem 1, functions as a first switch of the present invention, and controls the clock circuit 25. A first control signal is generated to perform required mode switching. Reference numeral 15 denotes a tooth portion 12 in which the mode switching wheel 12 is provided with the number of teeth as many as the number of the mode display.
a, which is a mode jump control spring for positioning the mode switching wheel 12 at a predetermined position. At the first and second positions of the winding stem 1, as shown in FIGS. 4 and 5, the gear portion 26b of the pinion wheel 26 is engaged with the mode switching transmission wheel 9 by the cannula 7 as shown in FIGS. Even if the winding stem 1 is rotated, the rotation is not transmitted to the mode switching wheel train, and the mode switching cannot be performed.

In the normal use position of the winding stem 1, as shown in FIG.
Since c is located at the position corresponding to the concave portion 22b of the switch lever 22, the switch lever 22 is not affected by the rotation operation of the winding stem 1 without engaging with the cam portion 26c.

As described above, according to the present invention, the mode switching and the display correction of an electronic timepiece having a plurality of mode displays can be performed only by the winding operation, and the operability is improved. Unlike the conventional case, there is no need to provide a display correction button other than the winding stem, which is advantageous for miniaturization of the timepiece.

[Brief description of the drawings]

FIG. 1 is a plan view of a main part of a digital watch according to an embodiment of the present invention, in which a winding true position indicating a mode change and a mode correction rotation is in a normal use state position.

FIG. 2 is an enlarged plan view of a main part of FIG. 1 of the present invention.

FIG. 3 omits the overlapping of some parts from FIG. 2 of the present invention,
It is the top view which expanded the principal part.

FIG. 4 is a plan view of a main part of the present invention in which some parts are omitted from FIG. 1, the winding stem is pulled out to the first stage, and the winding stem is rotated counterclockwise.

FIG. 5 is a plan view of an essential part of the present invention in which some parts are omitted from FIG. 1, the winding stem is pulled out to a second stage, and the winding stem is rotated counterclockwise.

FIG. 6 is a sectional view of a main part of FIG. 1 of the present invention.

FIG. 7 is a cross-sectional view of a main part around the knob wheel of FIG. 1 of the present invention.

FIG. 8 is a plan view of a main part of a conventional electronic timepiece showing a mode change and a mode correction around a winding true position in a normal use state position.

FIG. 9 is a plan view of a main part in which some parts are omitted from FIG. 7 of the conventional example, the winding stem is pulled out to the first level, and a display correction button is pressed in;

FIG. 10 is a plan view of a main part in which some parts are omitted from FIG. 7 of the conventional example, the winding stem is pulled out to the second level, and the display correction button is pressed in;

FIG. 11 is a sectional view of a main part of FIG. 7 of a conventional example.

FIG. 12 is a cross-sectional view of a main part in which a display correction button in FIG.

[Explanation of symbols]

 DESCRIPTION OF REFERENCE NUMBERS 1 Wind truth 2 Oscillation 3 Back holder 5 Identification switch 5b Identification spring 7 Kannuki 9 Mode switching transmission wheel 10 Mode switching intermediate wheel (1) 11 Mode switching intermediate wheel (2) 12 Mode switching vehicle Reference Signs List 22 Switch lever 23 Correction switch 23b Correction spring 24 Regulation spring 25 Clock circuit 26 Wheel 26b Gear 26c Cam 28 Circuit board 28a First identification pattern 28b Second identification pattern 28h First correction pattern 28i Second modified pattern

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2F002 AA05 AB02 AB03 AB04 AC01 AC02 BA06 BA08 BA26 BD03 EE01 EH01 2F082 AA00 BB01 BB02 BB03 CC01 EE02 EE03 EE05 EE06 EE08 FF01 FF05

Claims (4)

[Claims] 1. A clock circuit for generating a time signal, a winding stem which is an external operation member operable in the axial direction and operable to rotate, and a winding stem for setting the winding stem at a plurality of predetermined positions in the axial direction. A winding stem restricting member, a first control signal for operating based on a rotation operation of the winding stem and controlling the timepiece circuit when the winding stem is regulated to the normal use state position by the winding stem regulating member. When the winding stem is regulated to the non-usual use state position by the winding stem regulating member, a first switch for generating the first switch that operates based on the rotating operation of the winding stem and controls the timepiece circuit. (2) A switch structure of an electronic timepiece having a second switch for generating a control signal and an identification switch for identifying the position of the winding stem. 2. A winding stem restricting member includes a mandrel that engages with a shaft portion of the winding stem and rotates in conjunction with an axial operation of the winding stem, and a spring member that regulates a rotating position of the mandrel. The first switch includes a mode switching transmission wheel that rotates by meshing with a gear unit provided on the thumbwheel, and a plurality of rotation switches transmitted from the mode switching transmission wheel, which are provided on a circuit board. And a mode switching vehicle for selectively contacting the mode switching pattern to switch a plurality of mode displays.
A second switch is provided with the thumbwheel interlocked with the turning operation of the winding stem, a switch lever which swings by engaging a cam portion formed on the thumbwheel, and the winding stem interlocked with the switch lever. And a correction switch that contacts a correction pattern provided on the circuit board in accordance with the rotation direction of
2. The mode switching transmission wheel is disposed on the opposite side of the winding stem from the switch lever.
The switch structure of the electronic timepiece described. 3. The switch structure for an electronic timepiece according to claim 2, wherein the second switch further has a regulating spring that contacts the switch lever to regulate the switch lever to the neutral position. 4. The electronic timepiece according to claim 2, wherein the identification switch is a switch that swings in conjunction with the rotation of the mandrel and contacts a winding true position identification pattern provided on the circuit board. Switch structure.