WO2001077758A1

WO2001077758A1 - Electronic timepiece with indicator hands

Info

Publication number: WO2001077758A1
Application number: PCT/JP2000/002247
Authority: WO
Inventors: Yuichi Shino; Takayuki Satodate
Original assignee: Seiko Instruments Inc.
Priority date: 2000-04-06
Filing date: 2000-04-06
Publication date: 2001-10-18
Also published as: CN1353827A; CN1132072C; HK1047165B; AU3672300A; HK1047165A1; EP1184748A1

Abstract

An electronic timepiece (100) having indicator hands capable of giving various indications by utilizing a mechanical driving mechanism, the timepiece comprising time hands (101, 102) that indicate time, first and second indicator hands (104, 103) separate from the time hands (101, 102), a motor (200) that rotates in one direction, and a train wheel that transmits the rotation of the motor (200) such that the first and second indicator hands (104, 103) are rotated in opposite directions, each forwardly and backwardly within a predetermined range. The train wheel transmits the rotation of the motor (200) such that the first and second indicator hands (104, 103) are rotated in opposite directions, each forwardly and backwardly within a predetermined range.

Description

Specification

Electronic watch with indicator hand

The present invention relates to an electronic timepiece with a display hand having a display hand integrally formed with a figure or the like. Background art

2. Description of the Related Art Conventionally, an electronic timepiece with a display hand having a display hand integrally formed with a figure such as a character has been used.

In a conventional electronic timepiece with a display hand, a hand having a function as a display hand is constituted by a needle-shaped second hand or a disk-shaped second hand, and the second hand also serves as the display hand. Also, in a conventional electronic timepiece provided with a display hand that operates only by a user's operation, the display hand also functions as a time hand that indicates time, or the display hand operates in conjunction with the time hand. It was something to do.

Therefore, any of the electronic timepieces described above has only one display hand that also serves as a time display, and one display hand can give various movements to a figure such as a character. And various displays could not be provided. In addition, although there were electronic watches with a display hand that constantly moved, there was only a disk-shaped second hand or a hand-shaped second hand with a figure or the like, and various displays such as giving various movements were given. I couldn't do it.

When the display hand also serves as the time hand or is linked to the time hand, the size of the figure that can be formed on the display hand is limited due to the restriction of the moment of the hand. It was difficult to use an indicator hand that could display various information. An object of the present invention is to provide an electronic timepiece with display hands provided with display hands capable of performing various displays by using a mechanical drive mechanism. Disclosure of the invention

The present invention employs the following technical configuration to achieve the above object.

That is, an electronic timepiece with a display hand of the present invention includes: a time hand indicating time; first and second display hands provided separately from the time hand; a motor rotating in one direction; and the motor And a wheel train for transmitting the rotation of the first and second display hands to reciprocally rotate the respective first and second display hands in a predetermined range in opposite directions. The wheel train receives the unidirectional rotation of the motor and reciprocates the first and second display hands within a predetermined range.

Here, the wheel train is formed on a part of the circumference of a first car that rotationally drives the first display hand, and a second car that rotationally drives the second display hand. A third car having first and second pinions alternately meshing with the first car and the second car and rotating according to the rotation of the motor; and a reversing car. When the first pinion meshes with the first wheel, the rotation of the first pinion is transmitted to the second wheel via the reversing wheel, and the second pinion is rotated. When is meshed with the second vehicle, the rotation of the second pinion may be transmitted to the first vehicle via the reversing wheel.

The third vehicle has the first and second pinions and gears, and rotates by receiving rotation of the motor transmitted to the gears, and the first pinion rotates with the first pinions. The second kana does not mesh with the second car when meshing with the car, and the first kana does not mesh with the second car when meshing with the second car. The first and second wheels may be configured so as not to mesh with the first wheel, and the first and second pins may be configured to have the same number of teeth. Good.

Further, the time hand and the display hand may be arranged coaxially. The electronic timepiece may be an electronic watch. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a front view showing the appearance of a specific example of an electronic timepiece with a display according to the present invention.

FIG. 2 is a rear view of a drive mechanism used in a specific example of the electronic timepiece with a display hand according to the present invention.

FIG. 3 is an enlarged rear view of a drive mechanism used in a specific example of the electronic timepiece with a display according to the present invention.

FIG. 4 is a sectional view taken along line BB in FIG.

FIG. 5 is a partially enlarged sectional view of FIG.

FIG. 6 is a front view showing the appearance of another specific example of the electronic timepiece with a display hand according to the present invention.

FIG. 7 is a front view showing the appearance of another specific example of the electronic timepiece with a display hand according to the present invention. BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, specific examples of the electronic timepiece with a display according to the present invention will be described in detail with reference to the drawings.

FIG. 1 is a front view showing the external appearance of a specific example of an electronic timepiece with a display hand according to the present invention, and shows an example of an electronic watch. In FIG. 1, an electronic wristwatch 100 with a display hand has an hour hand consisting of a minute hand 101 and an hour hand 102 representing time, and a star-shaped figure 106 is formed physically. 1st display hand 104, crescent-shaped figure 105 ,

Four

3. It has a dial 107 and an operation switch 108 for generating music. The display hands 103 and 104 are arranged between the minute hand 101 and the hour hand 102 and the dial 107.

As will be described later, one motor different from the motor that drives the time hands 101 and 102 is used as the drive source, and the reduction ratio is equivalent to the second hand. By using a wheel train that transmits rotation in the opposite direction, the pair of display hands 103 and 104 are moved in opposite directions at the same speed and within the same predetermined angle A, respectively. It is driven to rotate in a reciprocating manner.

FIG. 2 is a rear view showing the drive mechanism of the electronic wristwatch 100 with display hands shown in FIG. 1, and FIG. 3 is an enlarged back view showing the drive mechanism of the electronic watch with display hands shown in FIG. FIG. 4, FIG. 4 is a cross-sectional view taken along the line BB in FIG. 2, and FIG. 5 is a partially enlarged cross-sectional view of FIG. 4, and the same parts are denoted by the same reference numerals. 2 to 5, a time hand consisting of a minute hand 101 and an hour hand 102 and a pair of display hands 103, 104 are provided between the main plate 201 and the support plate 202. A driving mechanism for rotating and driving, and an electronic circuit are accommodated, and are configured in detail as follows.

The first stepping motor 200 constituted by the coil 203, the stay 210 and the rotor magnet 205 rotates only in one direction. The stator 204 and the coil 203 are fixed to the main plate 201 by screws 207 and 208.

The gear 302 of the car 209 meshes with the kana 206 of the low magnet 205. The gear 302 of the car 210 as the third car meshes with the kana 302 of the car 209. Each of the wheels 210 has a first kana 304 and a second kana 300 5 having the same number of teeth formed on a part of the circumference and arranged above and below the toothed wheel 303. It has. That is, the vehicle 210 has a three-stage configuration of the gear 310 and the kana 304,305. _r

D kana 304 and 305 are configured to alternately mesh with an hour wheel 2 13 as a first car and a wheel 2 12 as a second car. That is, when the kana 304 meshes with the gear 3107 of the wheel 2 13, the kana 304 does not mesh with the gear 310, and the kana 304 meshes with the gear 300. When the kana is no longer in mesh, the kana 305 meshes with the gear 306, and when the kana 305 no longer meshes with the gear 306, the kana 304 becomes a gear 307. It is configured to mesh with.

The wheel 2 13 is for rotating the display 104 and has a display hand 104 formed thereon. The hour wheel 2 1 2 is for rotating the display hand 103, and the display hand 103 is formed as a body.

On the other hand, between the hour wheel 2 1 2 and the hour wheel 2 1 3, a fourth wheel 23 0 and a fifth wheel 22 9 of the same shape, which constitute a reversing vehicle, are meshed with each other. The hour wheels 2 1 2 and 2 1 3 are configured to rotate in opposite directions at the same speed. As a result, the indicator hand 103 and the indicator hand 104 are configured to be driven to rotate at the same speed and in opposite directions to each other, and therefore, the crescent formed integrally with the indicator hand 103 The figure 105 and the star figure 106 formed integrally with the display needle 104 are driven to rotate at the same speed in opposite directions.

In addition, the car 210, the hour wheel 211, 213, and the car 229, 230 transmit the rotation of the motor 200, and the first and second display hands 104, 1 0 3 is reciprocated in a predetermined range in the opposite direction.

On the other hand, the electronic wristwatch 100 has a configuration for rotating the minute hand 101 and the hour hand 102. That is, a second stepping motor 222 constituted by a coil 2 19, a stay 220 and a rotor magnet 221 is provided, and a car 2 2 3 for transmitting the rotation of the rotor magnet 2 21 is provided. , 2 2 4, the car 2 14 for rotating the minute hand 101 and the hour hand 102 It has an hour wheel 2 15 for

The hour wheel 2 12, 2 13, 2 15 are arranged concentrically on a shaft 2 16 integrally formed with the vehicle 2 14. As a result, the minute hand 101, the hour hand 102 and the display hands 103 and 104 are arranged on the same axis. Therefore, a dedicated space for mounting the display hands 103 and 104 is not required, so that the size can be reduced, and a sense of unity with the design on the dial 107 can be provided. Becomes possible.

Further, an integrated circuit 217 incorporating a crystal oscillator 218 constituting an oscillation circuit and a driving circuit is incorporated.

Hereinafter, the operation of this example will be described in detail with reference to FIGS. 1 to 5. In FIG. 3, when the rotor magnet 205 of the stepping motor 200 rotates in the minus direction (the direction of the arrow) and the kana 206 rotates in the direction of the arrow, the gear 206 Wheel 2 0 9 with which 0 1 meshes rotates in the direction of the arrow. Car 2 0 9 Kana 3 0 2 Gear 3 0 3 meshes with gear 3 0 2 Car 2 1 0 rotates in the direction of the arrow Kana 3 0 5 rotates with gear 3 2 6 of hour wheel 2 1 2 geared I do. As a result, the hour wheel 21 2 rotates in the direction of the solid arrow, and the display hand 103 rotates in the direction of the arrow.

At the same time, the wheel 2 29 in which the gear 3 0 8 meshes with the gear 3 0 6 of the hour wheel 2 1 2 rotates in the direction of the arrow, and the wheel 2 3 0 in which the gear 3 9 meshes with the gear 3 0 8 Rotates in the direction of the arrow. As a result, the hour wheel 2 13 in which the gear 3 07 meshes with the gear 3 09 rotates in the direction of the dashed arrow opposite to that of the hour wheel 2 12, and the indicating hand 104 moves in the arrow direction. To rotate.

The above operation is performed while the kana 305 meshes with the gear 306. As a result, the crescent-shaped figure 105 integrated with the indicating hand 103 rotates a predetermined angle in the direction of the arrow, and the star-shaped figure 106 integrated with the indicating hand 104 becomes It rotates by the same angle at the same speed as the crescent figure 105. Next, from the state shown in Fig. 3, the car 210 rotates in the direction of the arrow, and the kana 304 moves away from the gear 310, and at the same time, the kana 304 moves to the gear 300 of the hour wheel 211. The teeth mesh and rotate in the direction of the arrow in this state. As a result, the hour wheel 2 13 rotates in the direction indicated by the solid arrow, and the display hand 104 rotates in the direction opposite to the arrow.

At the same time, the wheel 2 3 0 with which the gear 3 0 9 meshes with the gear 3 0 7 of the hour wheel 2 1 3 rotates in the direction opposite to the arrow, and the wheel 2 2 9 with which the gear 3 0 9 meshes with the gear 3 0 9 Rotates in the direction indicated by the arrow. As a result, the hour wheel 2 12 in which the gear 3 06 meshes with the gear 3 08 rotates in the direction of the dashed arrow, and the indicating hand 10 3 rotates in the direction opposite to the arrow.

The above operation is performed while the kana 304 is engaged with the gear 307. As a result, the crescent-shaped figure 105 integrated with the indicating hand 103 rotates by the predetermined angle in the direction opposite to the arrow, and the star-shaped figure 100 integrated with the indicating hand 104 is displayed. 6 rotates the same angle in the direction opposite to the arrow at the same speed as the crescent figure 105. Next, the car 210 rotates further, and the kana 304 rotates and moves away from the gear 307, and at the same time, the kana 305 meshes with the gear 306 of the hour wheel 211. Rotate in the direction of the arrow in the prone position.

Thereafter, the above operation is repeated, and the crescent-shaped figure 105 integrated with the indicating hand 103 and the star-shaped figure 106 integrated with the indicating hand 104 are mutually moved within a predetermined angle range. Reciprocal rotation at the same speed in the opposite direction becomes possible.

FIG. 6 is a front view showing the appearance of another specific example of the electronic timepiece with a display hand according to the present invention, and the same parts as those in FIG. 1 are denoted by the same reference numerals.

In FIG. 6, an electronic wristwatch 100 with a display hand has a time hand constituted by a minute hand 101 and an hour hand 102, and has an arrow-shaped figure 800 formed physically. There is provided a second indicating hand 104 in which a first indicating hand 103 and a heart-shaped figure 800 2 are integrally formed. Indication hands 103, The numeral 104 is arranged between the minute hand 101 and the hour hand 102 and the dial 1107. Each of the pair of display hands 103 and 104 is rotationally driven to reciprocate in the opposite direction at the same speed within the same predetermined angle C.

FIG. 7 is a front view showing the appearance of another specific example of the electronic timepiece with a display hand according to the present invention, and the same parts as those in FIGS. 1 and 6 are denoted by the same reference numerals.

In FIG. 7, an electronic wristwatch 100 with a display hand has a time hand consisting of a minute hand 101 and an hour hand 102, and a first body in which an arrow-shaped figure 800 1 is formed physically. It has a second display hand 104 in which the display hand 103 and the heart-shaped figure 802 are formed physically. The indications 103 and 104 are arranged between the minute hand 101 and the hour hand 102 and the dial 107. The pair of display hands 103 and 104 are driven to rotate reciprocally in opposite directions at the same speed and within the same predetermined angle D.

As shown in Fig. 1, Fig. 6 and Fig. 7, the figure attached to the indicating hands 103, 104 can be various figures such as characters or characters, or the indicating hands 10 By changing the mounting angle of 3, 104, or changing the rotation angle range of the display 103, 104, etc., various forms can be realized.

As described above, the electronic timepiece with display hands according to the specific example of the present invention is provided separately from the time hands 101 and 102 indicating the time and the time hands 101 and 102. The first and second display hands 104, 103, a motor 200 rotating in one direction, and the first and second tables by transmitting the rotation of the motor 200. A train wheel (wheels 210, 229, 230, hour wheel 211, 213) for reciprocatingly rotating the indicating needles 104, 103 in a predetermined range in the opposite directions. It is characterized by comprising.

Therefore, a display with display hands 103 and 104 capable of various displays _g

It is possible to provide an electronic wristwatch 100 with a 釙.

In addition, a single motor can be used to drive the displays 103 and 104, and it is not necessary to use a plurality of motors, so that the configuration can be made at a low cost. In addition, when using a motor for forward / reverse rotation instead of the motor 200, problems such as high power consumption, low torque, and short battery life of the electronic watch arise. However, such a problem does not occur in this specific example because a motor that rotates in one direction is used. In addition, a display that cannot be expressed only by rotation in a single direction, for example, by forming both hands or both feet of a character integrally with two display hands 103, 104, etc. It is possible to display a movement desired to operate within a predetermined range.

When the two hands are integrally formed on the display hands 103 and 104, the hands are reciprocated with the patapa within a predetermined range to be moved. By setting the mounting angle of 04 variously, it is possible to express an action in which the character shakes his hand greatly or shows applause.

In addition, since the display hands 103 and 104 are reciprocating at all times, if they are displayed at a store, for example, it is possible to differentiate them from other watches. Become.

In addition, the indication hands 103 and 104 are arranged between the time hand and the dial 107, so that the design on the dial 107 can be integrated. be able to.

In each of the above specific examples, the display hands 103 and 104 are rotated at the same speed, but by changing the reduction ratio of the wheel train, they are rotated at different speeds. You may do so.

Further, in each of the above specific examples, the rotation range of the display hands 103 and 104 is _{(1) Although} they are the same, they may be different.

Further, in each of the above specific examples, the time hand is constituted by the minute hand 101 and the hour hand 102, but a second hand may be added thereto. Industrial applicability

As described above, the electronic timepiece with display hands according to the present invention can be applied to various types of electronic timepieces such as wall-mounted electronic timepieces and desk-type electronic timepieces as well as electronic timepieces.

Claims

The scope of the claims

1. Time hands (101, 102) indicating time and first and second display hands (104, 1) provided separately from the time hands (101, 102). 0 3), a motor (200) that rotates in one direction, and rotation of the motor (200) to transmit the first and second display hands (104, 103). An electronic timepiece with a display, comprising: a wheel train for reciprocally rotating the wheels in predetermined directions in opposite directions.

2. The wheel train is provided with a first wheel (2 13) for driving the first display hand (104) and a second car for driving the second display hand (103). The car (2

1 2), and the first and second kana (30) formed respectively on a part of the circumference and alternately meshing with the first car (2 13) and the second car (2 1 2). A third car (210) which has the same function as the motor (200) and has a third car (220, 230) for rotating in accordance with the rotation of the motor (200). And

When the first pinion (304) meshes with the first wheel (210), the rotation of the first pinion (304) causes the rotation of the reversing wheel (229). 2 3) to the second car (2 1 2)

When the second pinion (305) meshes with the second wheel (2122), the rotation of the second pinion (305) causes the rotation of the reversing wheel (229, The electronic timepiece with a display hand according to claim 1, wherein the electronic timepiece is transmitted to the first vehicle (213) via a second vehicle (230).

3. The third car (210) includes the first and second pinions (304, 305) and a gear (303), and the third car (210) has a gear (303). The motor rotates while receiving the rotation of the motor (200) that is transmitted, and when the first pinion (304) meshes with the first wheel (213), the second pinion (304) meshes with the second wheel. The kana (305) does not engage with the second car (2 1 2) and the second kana (3 When the first vehicle (210) is engaged with the second wheel (212), the first vehicle (304) is configured not to mesh with the first vehicle (213). 3. The electronic timepiece with a display hand according to claim 2, wherein:

4. The electronic timepiece with display hands according to claim 3, wherein the first and second kana (304, 305) are configured to have the same number of teeth.

5. The method according to claim 4, wherein the time hands (101, 102) and the display hands (103, 104) are arranged coaxially. Electronic clock with display 釙.

6. The electronic timepiece with a display according to any one of claims 1 to 5, wherein the electronic timepiece is an electronic watch (100).