JPS62265588A - Time adjusting mechanism of digital timepiece - Google Patents

Abstract

PURPOSE:To easily make a time adjustment by switching a pendulum through a belt, and making and breaking an addition or a substraction contact. CONSTITUTION:The belt 6 is extended between two rotary bodies e.g. a gear 2 and a roller 4. A small rotary body e.g., a pinion 8 is engaged with the gear 2 and the pendulum 10 is coupled with the pinion 8. When the belt 6 is rotated clockwise or counterclockwise, the pendulum 10 is swung to make and break the addition contact 14 or subtraction contact. Consequently, the figure on a time dial varies in an increase or decrease direction.

Description

[Detailed description of the invention] B. Utilization fields of industrial production The present invention relates to a time setting mechanism for a digital watch.

BACKGROUND OF THE INVENTION Conventionally, the time of a digital watch is usually set by pressing a push button. That is, in conventional time setting, the numbers on the time display board are advanced one by one by pressing push buttons one by one to set the desired time. If the desired time and the time on the time display board are far apart, first move the numbers forward by pressing and holding the push button, and then press the push buttons once a little before the desired time to set them. It is something.

On the other hand, the time of a nail-type clock is set by turning the time setting knob and continuously rotating the hands on the time display plate, so that the desired time can be set quickly. However, with the method of setting the time on a digital watch as described above, the number on the time display changes only once each time the button is pressed, so it is necessary to press the button many times to set the desired time. Yes, it was a hassle.

Means for Solving the Problems The time setting mechanism of a digital watch according to the present invention will be explained based on FIG. 1 corresponding to an embodiment. Two rotating bodies 2,
4. A belt stretched between the two rotating bodies 6. A small rotating body 8 that contacts and interlocks with one of the two rotating bodies 2, and a camera connected to this small rotating body 8. 10. Consists of contacts 14.18 for adding and subtracting numbers on the clock display board. When the belt 6 is turned, the small rotating body 8 rotates, and the camera 10 is swung to turn on the contacts 14.18. , OFF.

21 Action When the belt 6 is turned to the right or left, the pendulum 10 is taken and the addition contact 14 or subtraction contact 18 is turned on.

Turn OFF and add or subtract the numbers on the time display board.

E. EXAMPLE The time setting mechanism of a digital timepiece according to the present invention will be described below with reference to the drawings.

FIG. 1 is a plan view showing an embodiment of a time setting mechanism for a digital timepiece according to the present invention, and FIG. 2 is a front view of FIG. 1.

In these figures, a belt 6 is stretched between two rotating bodies, such as a gear 2 and a roller 4.

A small rotating body such as a binion 8 is meshed with the gear 2,
A pendulum 10 is connected to the nion 8 and the pendulum 10 . Substrate 12
PCB lands 14, 16, 18 are formed on the top, of which land 14 constitutes a summing contact and land 16
constitutes a common contact, and land 18 constitutes a subtraction contact.

Photographer 1o has slider 2o and this slider 2.
The slide contact 22 is connected to the contact point 22. The slider 20 is connected to a column 24 and is rotatable around the column 24.

An elastic body, such as a spring 26, is connected to two points A, A on the slider 2o, and a constant pressing force is applied so that the slide contact 22 is located within the common contact 16 of the PCB land under normal conditions. There is.

The slider 2o has at least one groove 28 formed near its periphery to engage the teeth of the pinion 8.

When the belt 6 rotates, the gear 2 and the pinion 8 rotate, and the slider 20 that meshes with the pinion 8 is rotated around the support 24. As a result, the slide contact 22 swings left and right around the support 24 as shown by the arrow in FIG.
(not shown) Add, subtract, and count the numbers above. While the pinion 8 rotates to the right or left by an angle corresponding to 360''/number of teeth, the slider 20 rotates a certain distance to the right or left around the support 240 and then disengages from the pinion 8. .

The rotation angle of the slider 20 due to the rotation of the binion 8 is
The angle is sufficient for the sliding contact to contact the addition contact 14 or the subtraction contact 18 to perform a switching action. When the slider 2o and the pinion 8 are disengaged, the action of the spring 26 causes the slider 20 and the slide contact to return to their original positions.

Since the spring 26 is provided in this embodiment, the sliding contact 22 can be kept stable within the common contact 16 of the PCB land while the belt 6 is not rotating. In addition, since a constant pressure is applied to point A when the slider 20 starts to swing left and right, stable and reliable movement can be achieved by 1q. If the springs 26, 26 were not present, the initial settling pressure at the time of starting the movement would be OKy, causing uneven movement and making the mechanism very unstable.

FIG. 3 is a diagram showing a modified example of the slider 20, in which the pillar 24 of the slider 20 is omitted and the peripheral portion thereof is shown.

In this figure, the slider 200 is provided with a strut 280 near its periphery, and the strut 280 engages with the pinion 8 to perform the same function as the groove 28 in the embodiment shown in FIGS. 1 and 2.

According to the time setting mechanism of the present invention, there is no need to press a push button many times, and the time can be set by continuously rotating the belt.

Further, according to the present invention, a time setting mechanism that can quickly set the time can be obtained.

[Brief explanation of drawings]

Fig. 1 is a plan view showing one embodiment of the time setting mechanism of a digital watch according to the present invention, Fig. 2 is a front view of the time setting mechanism shown in Fig. 1, and Fig. 3 is a surrounding area of a modified example of the slider. FIG. 2... Rotating body (gear), 4... Rotating body (roller),
6...Belt, 8...Small rotating body (binion), 1o
... Photographer, 14 ... Addition contact, 16 ... Subtraction contact, 20°200 ... Slider, 22 ... Slide contact, 26 ... Spring.

Claims (3)

[Claims] (1) Two rotating bodies, a belt stretched between the two rotating bodies, a small rotating body that contacts and interlocks with one of the two rotating bodies, and a connection to the small rotating body The clock is comprised of a pendulum and a contact point for adding and subtracting numbers on a time display board, and when the belt is turned, the small rotating body rotates and the pendulum is swung, turning the contact point ON and OFF. A time adjustment mechanism for digital watches. (2) The time setting mechanism according to claim 1, wherein the two rotating bodies are a roller and a gear, and the small rotating body is a pinion that meshes with the gear. (3) The pendulum consists of a slider that is rotatable about one point and a slide contact mounted on the slider, and the slider has a spring so that the slide contact is positioned between the addition contact and the subtraction contact. The time setting mechanism for a digital timepiece according to claim 1, characterized in that the time setting mechanism is pressed in a direction to