JPH0577037B2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a timepiece indicator device.

(Prior art) A guide device for an analog alarm clock is provided with a protrusion on the hour hand wheel or a guide cam that engages with the hour hand wheel, and the guide wheel provided coaxially with the hour hand wheel or guide cam has the protrusion. A hole is provided opposite to the hole through which this protrusion can fall, and when the reference set time and the current time match, the protrusion fits into the hole and falls into the guide, thereby pushing the hour hand wheel or indicator cam. The alarm was configured so that the spring came into contact with a reference terminal formed on the printed circuit board and the alarm sounded.

(Problem to be Solved by the Invention) In the known indicator device for the analogue alarm clock as described above, it takes approximately 30 to 30 minutes from when the alarm sound starts to when the age spring opens and the alarm sound stops.
It takes 40 minutes, so if you forget to press the alarm button and leave it alone, the alarm will continue to ring for that time. As a result, the battery's lifespan was shortened, and the alarm sound was a nuisance to those around them.

SUMMARY OF THE INVENTION An object of the present invention is to shorten the closing time interval of the indicator switch in an indicator device for an analog alarm clock, thereby extending the battery life.

(Means for Solving the Problems) In order to achieve the above object, the present invention is characterized by having two sets of guide mechanisms, a first and a second guide mechanism, each of which has a guide wheel and a guide wheel. It consists of a constant-speed rotating wheel located coaxially with this, and one of the reference wheel and this constant-speed rotating wheel, for example, a protrusion falls toward the constant-speed rotating wheel, and the protrusion falls toward the reference wheel. Further, the second guide mechanism is configured to fall as a guide with a predetermined phase delay with respect to the first guide mechanism, and and first and second spring pieces that are displaced in conjunction with the respective reference falling movements of the second reference mechanism, and the reference switch is closed by the displacement of the first spring piece, and then the reference switch is closed by the displacement of the first spring piece. It was made to close by the displacement of the second spring piece.

(Function) In the first guide mechanism, when the guide set time and the current time match due to the rotation of the constant speed rotating wheel, the first guide mechanism
The first spring piece is displaced in conjunction with the falling of the indicator of the indicator mechanism, the indicator switch is closed, and an alarm sound is generated. Then, after a predetermined short period of time has passed, the second
When the reference mechanism falls, the second spring piece is displaced to open the reference switch and automatically stop the alarm sound.

(Example) Examples of the present invention will be described below with reference to the drawings.

In FIG. 1, a base plate 1 is provided with a first guide mechanism A and a second guide mechanism B.

Therefore, first, the configuration of the first guide mechanism A will be explained.

The base plate 1 is provided with a first reference wheel 2 that is rotated when setting the reference time, and a first hour wheel 3 coaxially with the reference wheel 2.
A minute hand wheel 4 and a second hand wheel 5 are provided coaxially with each other. By the way, according to the illustrated example, the constant speed rotating wheel is composed of an hour hand wheel 3 that rotates at a constant speed by a clock mechanism and a first rotating body 6 located on the upper surface side of the hour hand wheel. This is what is being done.
At least two protrusions 6a are vertically provided on the lower surface of the rotating body 6 and engage with the hole 3a of the hour hand wheel 3. A hole 2a is provided in which the object falls at the time. The rotating body 6 is movable in the axial direction of the indicator wheel 2 and the hour wheel 3.

As shown in the second figure, a first spring piece 7 is in elastic contact with the upper surface of the rotating body 6, and the base end of this spring piece 7 is connected and fixed to a circuit on a printed circuit board (not shown). It is a cantilever supported type.

Next, a specific example configuration of the second guide mechanism B will be explained. Support column 1 integrally formed on base plate 1
A is pivotally supported by a second indicator wheel 20 that meshes with the indicator wheel 2 of the indicator mechanism A, and a second hour wheel 30 that meshes with the hour hand wheel 3 and coaxially with the indicator wheel 20.
The number of teeth of the indicator wheel 20 and the hour hand wheel 30 is the same as the number of teeth of the indicator wheel 2 and the hour hand wheel 3, respectively.

Further, a second rotating body 60 having substantially the same configuration as the rotating body 6 is provided on the upper surface of the hour wheel 30.
A protrusion 60a is vertically provided on the rotating body 60, and is capable of engaging with the hole 30a of the hour hand wheel 30 and falling into the hole 20a of the indicator wheel 20.

A second spring piece 70 is in elastic contact with the upper surface of the rotating body 60, and the spring piece 70 is also cantilevered with its base end fixed to the printed circuit board.
As shown in the second figure, the tip 70a of the spring piece 70 is
A reference switch 9 is configured to face the tip 7a of the spring piece 7 so as to be able to come into contact with and separate from it. A stopper 8 can be engaged with the lower surface of the tip 7a of the spring piece 7, as shown in FIGS. 2 and 3.

Further, the first reference mechanism B is set to drop the reference value with a predetermined phase lag, for example, 15 minutes, with respect to the first reference mechanism A.

Specifically, the hour hand wheel 3 and the hour hand wheel 30 have a hole 3a and a hole 30a at the same location, respectively, and the reference wheel 2 and the reference wheel 20 have a hole 2a and a hole 20a at the same location, respectively. has been established, and the number of teeth on hour hand wheels 3 and 30 and indicator wheels 2 and 20 are respectively
If there are 48 wheels, either the hour hand wheel 3 and the hour hand wheel 30 are meshed in the same phase, and the reference wheel 20 is meshed with the reference wheel 2 one tooth (7.5 degrees) out of phase, or
Alternatively, the hour hand wheel 30 is brought into mesh with the hour hand wheel 3 with a phase shift of one tooth (7.5 degrees), and the reference wheel 2 and the reference wheel 20 are brought into mesh with the same phase. As a result, the hole 2a and the hole 20a or the hole 3a and the hole 3
The phase with 0a is shifted by one tooth (7.5 degrees), and the second guide mechanism B falls behind the first guide mechanism A with a delay of 15 minutes. Note that the number of teeth on each gear is not limited to 48, and by selecting the appropriate number of teeth and shifting the phase of each gear by the appropriate number of teeth, it is possible to set the desired guide fall delay time. be.

In addition, the guide fall delay time can be set not only by the meshing phase shift of each gear as described above, but also by shifting the relative opening position of each hole in each gear. In this case, the standard delay time is not affected by the meshing phase of each gear, so the degree of freedom in setting the standard delay time increases,
It is also possible to set the standard delay time to a short time, such as 3 minutes or 5 minutes.

Next, the operation of the present invention will be explained with reference to FIG. 1 and FIGS. 3A to 3C.

FIG. 1 shows a state in which a reference time is set by the reference car 2 and before the reference time arrives.
At this time, each tip 7 of the spring piece 70 with the spring piece 7
a and 70a are separated as shown in FIG. 3A.
When the reference time and the current time match due to the rotation of the hour hand wheel 3, the protrusion 6a of the rotary body 6 of the reference mechanism A falls into the hole 2a of the reference wheel 2, that is, the reference falls, as shown in FIG. 3B. The tip 7a of the spring piece 7
is also moved downward and comes into contact with the tip 70a of the spring piece 70, and at the same time, the indicator switch 9 is closed.

Next, when 15 minutes have passed, the protrusion 6 of the rotating body 60 that is linked to the rotation of the hour hand wheel 30 of the indicator mechanism B
0a falls into the hole 20a of the reference wheel 20, and as a result, the tip 70a of the second spring piece 70 is displaced downward as shown in FIG. 8 prevents the displacement, so that the tip 70a of the spring piece 70 is separated from the tip 7a of the spring piece 7, and the indicator switch 9 is opened.

In this way, the indicator switch 9 is opened by the operation linked to the indicator drop of the spring piece 7.

As another embodiment of the constant speed rotating wheel, the rotating body 6 may be omitted and the hour hand wheel 3 itself may be provided with a protrusion so that the protrusion can fall into the hole 2a of the indicator wheel 2. However, in the case of this configuration, since the hour hand is attached to the tip of the shaft of the hour hand wheel 3 and moves back and forth in conjunction with the drop of the guide, it is necessary to increase the distance between the dial and the front cover accordingly.

(Effects of the Invention) According to the present invention having the above configuration, since the indicator switch is automatically opened within a short time,
Even if you forget to press the stop button, the battery will not be wasted, and the life of the battery can be extended. Also, since the alarm sound does not continue for a long time, it does not disturb those around you.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is a sectional view thereof, FIG. 2 is a sectional view taken along the line of FIG. 1, and FIGS. 3 A to C are sectional views showing the operation of the present invention. It is. A...First guide mechanism, B...Second guide mechanism, 2
...First guide wheel, 2a... Hole, 3... Gear (first hour hand wheel) constant speed rotating wheel, 6... Rotating body, 3a...
Hole portion, 6a... Protrusion, 7... First spring piece, 7a...
...Tip of the first spring piece, 20...Second guide wheel, 2
0a... Hole, 30... Gear (second hour hand wheel) constant speed rotating wheel, 60... Rotating body, 30a... Hole, 60
a... Protrusion, 70... Second spring piece, 70a... Tip of the second spring piece, 8... Stopper, 9... Reference switch.

Claims (1)

[Scope of Claims] 1. Consisting of a reference wheel that is rotated when setting the reference time, and a constant speed rotating wheel located coaxially with the reference wheel and rotated at a constant speed by a clock mechanism, two sets of guide mechanisms, first and second, in which a protrusion is formed on one side of the car and the constant-speed rotating wheel, and a hole into which the protrusion can fall is formed on the other side; , the guideline falls with a predetermined phase delay with respect to the first guideline mechanism, and the first and second guide mechanisms are displaced in conjunction with the guideline dropping operations of the first and second guide mechanisms, respectively. A timepiece indicator device comprising a spring piece, and an indicator switch that is closed by the first spring piece and opened by displacement of the second spring piece. 2. In claim 1, the first and second guide mechanisms are characterized in that the guide wheels and the constant speed rotating wheels mesh and interlock with each other, each having the same number of teeth. Clock reference device. 3. In claim 1 or 2, both constant speed rotating wheels include a gear and a rotating body having a protrusion located on the upper surface side of the gear and movably passing through the gear in the axial direction. A timepiece characterized in that a hole into which the protrusion can fall is formed in the indicator wheel, and the first and second spring pieces are in elastic contact with both of the rotating bodies, respectively. A guideline device. 4. In claim 1 or 3, the first and second spring pieces are supported in a cantilever manner, and the tips of the spring pieces face each other so as to be able to move toward and away from each other to form the reference switch. A clock reference device characterized by: