JP2936384B2 - Alarm clock - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an alarm clock having two types of alarm output systems.

[0002]

2. Description of the Related Art As shown in FIG. 5, a conventional alarm clock has an alarm for a bell sound, an electronic sound or a melody by a sounding body such as an electric bell or an electronic buzzer, and an alarm for vibration of a vibrating body by a motor drive. Are switched by a changeover switch SW. In order to drive the different alarm output systems, a drive control circuit for driving each of them separately has been provided.

[0003]

However, since the conventional device had to include a sounding body, a vibrating body, and two drive control circuits for individually driving the sounding body and the vibrating body, the circuit configuration became complicated. , The cost was high. Therefore, an object of the present invention is to enable selection of sound and vibration alarms, and to realize the alarm at a low cost with a simple configuration.

[0004]

To achieve the above object, an alarm timepiece according to the present invention comprises a phosphorus, a ball attached to a drive shaft of a motor via an eccentric mass, and
Switching means for switching the relative positions of the motor and phosphorus between a position where the hit ball hits the phosphorus and a position away from the phosphorus is provided. An alarm is generated by a bell sound at a position where the hit ball hits the phosphorus, and an alarm is generated by vibration at a position where the hit ball is away from the phosphorus.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, a time display section 2 having a circular shape is provided on the front left side of a frame 1 of a timepiece. Below, a sound emitting hole 3 formed by a plurality of grooves communicating with the sounding means 3
a is provided. A silence stop button 4 protrudes from an upper portion of the frame 1.

As shown in FIG. 2, a small lid 5 for opening and closing the sound generating means 3 is provided at the center of the rear left side of the frame 1, and a rotatable circular switch is provided at the center of the small lid. A knob 51 is provided. A knob 51a is provided at the center of the switching knob 51.
Are formed to protrude. On the outer periphery of the switching knob 51, an instruction mark 51b having a triangular shape is formed. Switching knob 5
Marks 5a and 5b indicating "bell sound" and "vibration" are displayed on the inner peripheral surface of the small lid 5 opposed to the outer periphery of 1. The switching knob 51 is provided with marks 5a and 5 for "bell sound" and "vibration".
b can be rotated by a stroke necessary to indicate the position b by the instruction mark 51b.

[0007] As shown in FIG.
Phosphorus 6 is provided at a position opposite to. As shown in FIG. 3, the phosphorus 6 has a circular shape as a whole, and has a triangular protrusion 6a projecting inward at one upper portion. The motor 7 is fixed to the inner surface of the switching knob 51 by mounting means (not shown). One end of an eccentric mass 72 is fixed to the projecting end of the drive shaft 71 of the motor 7, and a ball 73 is attached to the other end of the eccentric mass so as to be slightly movable in the direction of centrifugal force.

[0008] Since the motor 7 is attached to the switching knob 51, the motor 7 moves in accordance with the rotation of the switching knob 51. That is, as shown in FIG. 2, when the indication mark 51 b of the switching knob 51 indicates the “bell sound” mark 5 a, as shown in FIG. It is in the position to hit. Also, the switching knob 51
When the instruction mark 51b indicates the "vibration" mark 5b, the hit ball 73 is located at a position away from the protrusion 6a of the phosphorus 6, as shown in FIG. To generate an alarm with a bell sound, the indication mark 51b of the switching knob 51 is set to the mark 5a of "bell sound". In this case, as shown in FIG. 3, the ball 73 and the protruding portion 6a face each other and are at a position where they can be hit. Then, when the motor 7 is driven, the drive shaft 71 rotates and the eccentric mass 72 rotates in conjunction therewith, and the striking ball 73 also rotates with the eccentric mass 72, jumps out in the centrifugal force direction and strikes the projecting portion 6a. Away immediately, which produces a clear bell sound.

To generate an alarm by vibration, the indication mark 51b of the switching knob 51 is matched with the "vibration" mark 5b. In this case, as shown in FIG. 4, the hit ball 73 and the protruding portion 6a are separated from each other. Then, when the motor 7 is driven, the drive shaft 71 rotates, the eccentric mass 72 rotates in conjunction therewith, and the ball 73 also rotates.
Cannot hit the protruding portion 6a, and becomes idle at the eccentric position, causing vibration.

[0010] It is not always necessary to form a projection on the phosphorus, and the ball may directly hit the inner surface of the phosphorus. The motor need not be provided inside the phosphorus, but may be provided outside the phosphorus so that the ball hits the outer surface of the phosphorus. Further, instead of moving the position of the motor, the position of phosphorus may be moved.

[0011]

According to the present invention, it is possible to provide an alarm clock capable of switching between two different alarms of a bell sound and a vibration with a simple configuration at a low cost.

[Brief description of the drawings]

FIG. 1 is a front view showing one embodiment of the present invention.

FIG. 2 is a rear view of the same.

FIG. 3 is a front view showing a state in which a bell sound is generated.

FIG. 4 is a front view showing a state in which vibration is generated.

FIG. 5 is a block diagram showing a conventional example.

[Explanation of symbols]

 51 switching means (switch knob) 6 phosphorus 7 motor 71 drive shaft 72 eccentric mass 73 hit ball

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int. Cl. ⁶ , DB name) G04B 23/02 G04B 25/04 G04C 21/02 G04G 13/02

Claims (1)

(57) [Claims] A ball mounted on the drive shaft of the motor via an eccentric mass; and a position where the ball hits the phosphorus and a position separated from the phosphorus. Switching means for switching the relative position between the ball and the ball. At the position where the hit ball hits the phosphorus, an alarm is generated with a bell sound. An alarm clock characterized by being generated by: