JPH10213681A - Timepiece - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a works timepiece capable of reducing the occupied space of a brightness detection means and fixing without additionally decorating the dial plate. SOLUTION: In this timepiece the cover 5b of a cap 5 pushed and operated during functioning of monitor of a control unit 3 is formed with a transparent material transmitting visible light. In a medium body 7 moving during switching operation, a CdS cell 6 detecting brightness of the environment is contained and in the control unit 3, the monitor switch and the CdS cell 6 are combined in one. By this, the occupying space for fixing and the parts number of the CdS cell 6 are reduced, and a fixing work becomes easy. Since it becomes unnecessary to additionally decorate the dial plate not fixed by the CdS cell 6, the reduction of production cost becomes possible.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a timepiece in which a decorative body moves at the time of reporting.

[0002]

2. Description of the Related Art In the case where a mechanical clock that performs a moving operation of a decorative body at the time of a report is placed in a room that is turned off at night, for example, a moving operation of the decorative body that gives a visual decorative effect to the clock. Since it is not visible, it is meaningless to make the decoration body perform the movement operation, and only wasteful power is consumed. For this reason, in this type of timepiece, the sensor detects that the brightness of the environmental atmosphere in which the timepiece body is arranged falls below a predetermined value, and stops the movement of the decorative body.

Therefore, a photoconductive cell such as a CdS cell for detecting visible light and performing photoelectric conversion is attached to this type of timepiece as lightness detecting means, and a decorative body is provided based on a detection signal of the lightness detecting means. Drive circuit is disabled. This lightness detecting means needs to be arranged in a portion of the timepiece body that does not become a shadow to accurately detect the lightness of the environmental atmosphere, and it is necessary to prevent damage due to dirt or movement of the decorative body. For this purpose, conventionally, an opening is provided in a part of the dial, a photoconductive cell is arranged as a brightness detecting means in the opening, and the protective glass of the dial is used as a cover, or a special cover is used. In many cases, the photoconductive cell is covered.

[0004]

In the above-mentioned conventional timepiece, it is necessary to separately provide an external decoration on the dial in order to make the brightness detecting means provided at the opening of the dial inconspicuous, so that it is neat. In some cases, it is difficult to obtain a feeling dial plate, giving a feeling of complexity, and there is a problem in manufacturing cost due to the external decoration.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a timepiece in which the space occupied by the brightness detecting means is reduced and the dial can be attached without separately providing an external decoration. It is in.

[0006]

In order to achieve the above object, according to the present invention, a timing operation is performed at a predetermined time set in advance, and at a time other than the predetermined time, the report operation is performed by operating a monitor switch. Monitor operation means for performing a time operation, and an optical sensor for detecting the brightness of the environmental atmosphere in which the timepiece main body is arranged, and when the detected brightness becomes equal to or less than a predetermined value set in advance, the time notification operation is disabled. The operation unit of the monitor switch is made of an optically transparent member, and
The optical sensor is arranged in a region where light can be received in the operation unit, and the monitor switch and the optical sensor are integrally configured.

According to the timepiece of the present invention, the timepiece operation is performed at a predetermined time set in advance, and the monitor switch of the monitor driving means for performing the timekeeping operation at a time other than the predetermined time, and the timepiece main body includes: Since the optical sensor that detects the brightness of the environmental atmosphere to be placed is integrated, it is possible to easily attach the operation stopping means by reducing the number of parts and occupying space, It is not necessary to separately provide an exterior for the dial to which the sensor is not attached, and the manufacturing cost can be reduced.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a front view of a timepiece to which the present embodiment is applied, FIG. 2 is an explanatory diagram showing a configuration of a main part of the present embodiment, and FIG. 3 shows a configuration of a control system of a decorative body of the present embodiment. It is a block diagram.

In this embodiment, as shown in FIG. 1, a monitor switch for monitoring and driving the decorative body 2 at a time other than the designated time is provided on one side of the watch main body 1.
The control unit 3 is integrally mounted with a CdS cell as a photoconductive cell for detecting the brightness of the environmental atmosphere in which the light emitting element is disposed. A dial 12 is disposed substantially at the center of the surface of the watch main body 1, and a decorative body 2 that performs a time movement operation is disposed on the watch main body 1 so as to surround the dial 12. .

As shown in FIG. 2A, the control unit 3 includes a cap 5 comprising a ring plate 5a and a transparent cylindrical cover 5b which covers the ring plate 5a and is fixed to the ring plate 5a. A CdS cell 6 is inserted and fixed at the tip, and a base 10 having a columnar intermediate body 7 whose tip portion is inserted into the cap 5 and terminals t1 and t2.
The moving body 8 having the contact piece 15 is constituted by a switch body 11 which is pushed in to perform a switching operation. Also, intermediate 7
Has the extraction contact piece 1 connected to the output terminal of the CdS cell 6.
6 is attached.

The control unit 3 comprises a cap 5, an intermediate 7
FIG. 2B shows a non-operating state of the monitor switch in which the cap 5 is not pushed and operated. In this case, the terminals t1 and t2 are electrically non-operable. When the cap 5 is pushed in from this state, the moving body 8 is pushed into the base 10 via the intermediate body 7 as shown in FIG. It is configured such that t2 is electrically connected.

In this embodiment, as shown in FIG. 3, a predetermined voltage is applied to a terminal t1 of the control unit 3 by a battery 26, and the extraction contact 16 is connected to a control unit output circuit 21. . An output terminal of the control unit output circuit 21 is connected to one input terminal of an AND gate 22, and the other input terminal of the AND gate 23 is
The output terminal of the timer 24 that outputs a drive signal when a preset time for driving the decorative body is reached is connected.
The output terminal of the AND gate 22 is connected to one input terminal of the OR gate 23, the other input terminal of the OR gate 23 is connected to the terminal t2, and the output terminal of the OR gate 23 is a driving circuit for driving the decorative body. The decorative body 2 is connected to an output terminal of the drive circuit 25.

The operation of this embodiment having the above configuration will be described. The brightness of the environmental atmosphere where the watch body 1 is placed
If there is a predetermined value or more, the control unit 3
The visible light transmitted through the transparent material cover 5b enters the light receiving surface of the CdS cell 6, and the CdS cell 6 outputs a photoelectrically converted light receiving signal.
6, and is input to the control unit output circuit 21.

As a result, the control unit output circuit 21 is activated, the logic value of the unit signal at the output terminal of the control unit output circuit 21 becomes "1", and when the preset time signal time comes, the output of the timer 24 is output. The logic value of the signal at the terminal becomes "1". As a result, only the logical value of the signal at one input terminal of the OR gate 23 becomes "1",
The logic of the signal at the output terminal of the R gate 23 becomes “1”, and the drive signal is input to the drive circuit 25.
Is in the operating state, and the decorative body 2 performs the time movement operation.

When the brightness of the environmental atmosphere in which the watch main body 1 is arranged falls below a predetermined value, no light receiving signal is output from the CdS cell 6 and the unit signal of the output terminal of the control unit output circuit 21 is output. The logical value is “0”, and even if the logical value of the signal at the output terminal of the timer 24 becomes “1” at a predetermined time signal time, the logical value of the signal at the output terminal of the AND gate 22 becomes “0”. And the decorative body 2 does not perform the time movement operation unless the monitor switch is operated.

When the decorative body 2 is to be monitored for the time movement during a time period other than the predetermined time signal time, the cap of the control unit 3 which is always in the state shown in FIG. 5, the terminals t1 and t2 are electrically connected to each other by the contact piece 15, a predetermined voltage from the battery 26 is applied to the other input terminal of the OR gate 23, and the output terminal of the OR gate 23 is The logical value of the signal becomes “1”, and the decoration 2
Is driven, and a monitoring operation of the notification movement by the decorative body 2 is performed.

As described above, according to the present embodiment, the cap 5 that is pushed in at the time of the monitor operation of the control unit 3 is formed of a transparent material that transmits visible light, and is attached to the intermediate body 7 that moves at the time of the switch operation. Since the CdS cell 6 for detecting the brightness of the environmental atmosphere is built in and the monitor switch and the CdS cell 6 are integrated in the control unit 3,
The space occupied by dS mounting and the number of parts are reduced, mounting can be easily performed, and it is not necessary to separately provide an exterior for a dial on which CdS cannot be mounted.
Manufacturing costs can also be reduced.

In the present embodiment, the decoration is operated.
Although the monitor switch has been described as an example, it goes without saying that the present invention can be applied to a monitor switch that operates a sound generator such as a melody.

[0019]

As described above, according to the present invention,
Installation of the operation stop means can be easily performed by reducing the number of parts and occupying space, and it is not necessary to separately add an exterior to the dial to which the sensor can not be attached, and the manufacturing cost can be reduced. become.

[Brief description of the drawings]

FIG. 1 is a front view of a timepiece to which an embodiment of the present invention has been applied.

FIG. 2 is an explanatory diagram showing a configuration of a main part of the embodiment.

FIG. 3 is a block diagram showing a configuration of a control system of the decorative body of the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Watch main body 2 ... Decorative body 3 ... Control unit 5 ... Cap 6 ... CdS cell 7 ... Intermediate body 8 ... Moving body 10 ... Base body 11 ... Switch body 15 ... Contact piece 16 ... Extraction contact piece 21 ... Control unit output circuit 22 ... AND gate 23 ... OR gate 24 ... timer 25 ... drive circuit 26 ... battery

Claims (1)

[Claims] 1. A timepiece operation is performed when a predetermined time set in advance is reached, and at a time other than the predetermined time, monitor drive means for performing the timekeeping operation by operating a monitor switch, and the watch main body are arranged. A time sensor having an optical sensor for detecting the brightness of the ambient atmosphere, and an operation stopping means for disabling the timing operation when the detected brightness becomes equal to or less than a predetermined value. A timepiece in which an operation part of a switch is made of an optically transparent member, and the optical sensor is arranged in a light-receiving area in the operation part, and the monitor switch and the optical sensor are integrally formed. .