KR940004241Y1 - Alarm stop clock only by seperate key - Google Patents

Abstract

No content.

Description

Clock stops alarm only by independent key

1 is a detailed circuit diagram of a clock in which an alarm is stopped only by an independent key of the present invention.

* Explanation of symbols for main parts of the drawings

1: flip-flop 2: resistance

3: transistor 4: relay driver

5: relay 6: alarm device

7: Movement 8: Alarm time adjustment knob

9: key 10: handle portion

11 insertion part 12 insertion hole

13: push switch 14: elastic piece

15: conduction terminal 16: power supply

[Field of design]

The present invention relates to a clock with an alarm function.

Specifically, the present invention places the key separated from the clock away from the clock before going to bed, and wakes up from the bed when the alarm sounds in wake-up time to bring the key away from the clock to stop the clock's alarm. It is about a clock that must wake you up by constructing a clock.

[Design background]

As a result of population growth and industrialization, nuclear familyization has accelerated, resulting in an explosion of single organizations, as well as extended periods of singleness, as seen in full-blown phenomena. In addition, industrialization has increased the demand for punctuality in school, business, public affairs, and social activities, and the importance of time has gradually increased as opportunities for leisure use for self-realization such as hobbies, leisure, sports, and social education have expanded. It is emphasized. As a result, the burden of morning weather increased, so that school, work, appointments, and plans were not disrupted. In particular, the burden of punctuality of single life has increased, and in order to meet such demands, a clock has been produced in which the alarm continues to sound every 5 minutes after pressing the alarm stop button. However, the conventional clock has a power switch protruding from the outside. The alarm can be stopped without waking up, so the effect is questionable.

Conventional design, filed by the present applicant as No. 91-16215, can be stopped only by a separate tool, ie, a key, separate from the clock once the alarm function is activated. As a clock or alarm clock, if the key is placed outside or indoors before bedtime after adjusting the alarm time, physical activity must be performed to stop the alarm, so that the user can wake up to the scheduled time without interruption. It was.

However, the conventional design is to compose the switching part using mechanical parts such as drive motor, pinion gear, spring, locking bar and conductor, which can stop the alarm only by a separate tool. There was a disadvantage that the volume of the clock increases.

[Purpose of designation]

An object of the present invention is to provide a switching unit composed of electronic circuits to solve the above problems, the volume is simple, the structure is simple, there is almost no failure, and the manufacturing cost can be lowered.

Another object of the present invention is to provide a clock that can only wake up at the scheduled time by allowing the alarm to be stopped by a key separate from the clock.

Summary of the proposal

The present invention consists of a relay driver, a relay, an alarm device, a movement and a key composed of a flip-flop and a resistor and a transistor.

[Description of Specific Example of Design]

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

The present invention is connected to the relay driver (4) consisting of a flip-flop (1), a resistor (2) and a transistor (3), a relay (5) and a relay (5) operated by a control signal of the relay driver (4). Alarm device 6, the movement 7 and a separate key 9 for stopping the alarm signal is generated.

The flip-flop 1 of the relay driver 4 is composed of two NAND gates, and the output is connected to the base of the transistor 3 through the resistor 2.

The transistor 3 drives the relay 5, and when the transistor is in a conducting state, the relay contact is in a conducting state, and when the transistor is in a blocking state, the relay contact is in a blocking state.

The relay 5 is driven by the transistor 3 and an alarm signal sounds when the relay contact is in a conductive state and the alarm signal is stopped when the relay is in a blocked state.

Movement (7) is the main part to operate the clock and adjust the alarm time adjustment knob 8 of the movement, the alarm time can be adjusted, and when the predetermined alarm time, the terminals A and B of the movement are connected internally.

Key 9 is formed by the handle portion 10 and the insertion portion 11 is formed integrally and the length from the center of the handle portion 10 to one end was a length that can reach the center of the push switch (13). .

Effects and effects of the present invention are as follows.

In order to operate the alarm device 6, the push switch 13 is placed in the "on" state, and a constant time is designated by the alarm timing adjusting knob 8. When the predetermined time comes, the circuit in the movement 7 is operated to connect the movement terminals A and B internally. Then, the input C of the flip-flop is connected to the + terminal of the power supply 16 to the "high" state, and D is connected to the-terminal to the "low" state, so the output terminal E of the flip-flop 1 is "high". It becomes a state. Since the output terminal E of the flip-flop is connected to the base of the transistor 3 via the resistor 2, the transistor becomes conductive when the terminal E is in the "high" state. When the transistor becomes conductive, the relay switch becomes a conductive state, and the alarm device 6 is connected to a power source to generate an alarm signal. As described above, once the alarm device starts to operate, the alarm device continues to operate even if the push switch 13 is turned “off”.

In order to stop the operation of the alarm device, the insertion part 11 of the key is inserted into the insertion hole 12 to press the elastic piece 14 downward to connect the conductive terminals 15 to each other. Then, the flip-flop's input C becomes “low” because the input C of the flip-flop is connected to the negative terminal of the power supply, and the input D is connected to the + terminal of the power supply and becomes “high”. . When the output terminal E of the flip-flop is in the "low" state, the transistor 3 is cut off. When the transistor is cut off, the relay switch is opened and the alarm device is disconnected from the power supply and the alarm device stops operating.

The handle portion 10 of the key allows the length from the center of the handle portion to one end to reach the center portion of the push switch 13 to stop the operation of the alarm device. The push switch to be in the "off" state is pressed by the knob of the key so that the push switch 13 is in the "off" state, and then the elastic piece 14 is pressed to stop the alarm operation. Also, in order to stop the alarm of the clock, it is necessary to take the key 9 far from the clock to stop the alarm of the clock, so that the effect of making sure the weather is generated, the insertion hole of the key 12 and the insertion portion of the key The shape of (11) is uniquely formed so that nothing other than the key can enter the insertion hole.

Although the present invention has been described in detail only with respect to the embodiments described, it will be apparent to those skilled in the art that various modifications or changes can be made within the spirit and scope of the present invention, and such variations and modifications fall within the scope of the appended utility model claims. Of course.

Claims (3)

According to the voltage values applied to the input terminals C and D, the flip-flop 1 having two states of "low" and "high" at the output terminal E and the relay 5 according to the voltage state of the output terminal E of the flip-flop The relay device 4 including the transistor 3 whose base is connected to the output terminal E of the flip-flop 1 through the resistor 2 for the purpose of conduction or interruption, the alarm device 6 as the transistor 3 is conducted or disconnected. Relay 5 for operating or stopping), an alarm device 6 for generating or stopping an alarm signal as the relay 5 is turned on or off, and an alarm device by connecting terminals A and B to a preset alarm time. A clock in which the alarm is stopped only by an independent key, characterized in that it comprises a movement (7) for operating (6). The method of claim 1, wherein the insertion hole 12 is formed in the watch case so that the elastic piece 14 is brought into contact with the conducting terminal 15 by applying a force from the outside, the elastic piece 14 is provided in the insertion hole. A clock in which the alarm is stopped only by an independent key, characterized in that a special shape is formed to prevent contact with other tools other than the key (9). The press switch of claim 1, wherein the length of the insertion portion 11 and the handle portion 10 from the center to one end is inserted into the insertion hole 12 so that the elastic piece 14 contacts the conductive terminal 15. Alarm clock is stopped only by an independent key, characterized in that the key (9) is formed integrally with the handle portion (10) coming to the 1/2 point of (13).