JPS6256601B2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a portable security buzzer with a light provided with a lighting bulb, and its purpose is to simultaneously supply current from a power battery to the buzzer and the lighting bulb. Our goal is to provide a switch structure that never fails.

Hereinafter, the present invention will be explained based on drawings showing embodiments thereof. In Figures 1 and 2, 1 is a main body case containing a buzzer 2, a lighting bulb 3, a plurality of power batteries 4, etc., 5 is a knob for operating the buzzer switch, and 6 is a voltage check switch for the power battery 4. 7 is a switch button for the lighting bulb 3; 8 is a lighting switch that comes into contact with and leaves the base of the lighting bulb 3; this lighting switch 8 is operated by the sliding operation of the switch button 7; Ru. 9 is a contact connected to the lighting switch 8 and fixed to the main body case 1 with a screw 10; 11 and 12 are a pair of contact pieces constituting the buzzer switch 13; , one movable contact piece 11 is fixed to the main body case 1 with a screw 14, one end thereof is connected to one terminal 15 of the power battery 4, and the other end faces the contactor 9. Also, the other fixed contact piece 12
is fixed to the main body case 1 with a screw 16 with a space between it and the movable contact piece 11, and the knob 5
By interposing the movable contact piece 11 and the fixed contact piece 12 between the movable contact piece 11 and the fixed contact piece 12, the contact between the two is broken and the movable contact piece 11 comes into contact with the contactor 9. When used as a security buzzer, when the knob 5 is pulled out, the movable contact piece 11 comes into contact with the fixed contact piece 12 by its own elastic force, so that the buzzer 2 sounds. In this case, the contact between the movable contact piece 11 and the contactor 9 is broken. Reference numeral 17 denotes a contact piece whose one end is connected to one terminal 15 of the power supply battery 4 via a resistor 18. This contact piece 17 is fixed to the case 1 and
The other end faces the fixed contact piece 12.
The contact piece 17 and the fixed contact piece 12 constitute a voltage check switch 20 for the power battery 4. 21 is the other terminal of the power supply battery 4, and this other terminal 21 is connected to the terminal lead 22 of the lighting bulb 3 and the coil of the buzzer 2.

FIG. 3 shows the electric circuit in the above configuration, in which the buzzer 2 and the lighting bulb 3 are connected to the power source battery 4.
A switch 20 is connected in parallel to the buzzer 2 circuit via a resistor 18 to check the voltage of the power battery 4, and the circuit for the lighting bulb 3 is operated by sliding the switch button 7. Lighting switches 8 are connected in series. 23
is a main switch composed of a contactor 9 connected to the circuit of the above-mentioned lighting bulb 3 and a pair of contact pieces 11 and 12 forming a buzzer switch 13, and this main switch 23 is connected to the circuit of the buzzer 2. It is provided between the circuit of the lighting bulb 3 so that both circuits can be switched.

The operation in the above configuration will be explained. Now, with the knob 5 inserted between the movable contact piece 11 and the fixed contact piece 12 as shown in FIG. Due to the contact, the lighting bulb 3 lights up. In this state, knob 5
When the movable contact piece 11 is pulled out, the movable contact piece 11 moves away from the contact 9 on the side of the lighting bulb 3 and comes into contact with the fixed contact piece 12. As a result, the lighting bulb 3 goes out and the buzzer 2 sounds. When the knob 5 is inserted again between the movable contact piece 11 and the fixed contact piece 12, the buzzer 2 stops sounding and the lighting bulb 3 lights up.

As described above, according to the present invention, a switch structure is adopted in which the lighting bulb and the buzzer do not operate at the same time, thereby preventing the life of the battery that serves as the power source from decreasing significantly. In addition, it can be operated effectively even at low voltage.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a portable security buzzer with a light showing an embodiment of the present invention, FIG. 2 is a sectional side view of the main parts of the buzzer, and FIG. 3 is an electric circuit diagram of the buzzer. 2...Buzzer, 3...Lighting bulb, 4...Power battery, 5...Knob, 8...Lighting switch, 9...
...Contact element, 11...Movable contact piece, 12...Fixed contact piece, 13...Buzzer switch, 23...Main switch.

Claims (1)

[Claims] 1 Connect a buzzer and a lighting bulb in parallel to the power battery, connect a lighting switch in series with the lighting bulb, and connect both circuits between the buzzer circuit and the lighting bulb circuit. A switchable main switch is provided, and the main switch is composed of a contactor connected to the circuit of the lighting bulb and a pair of contact pieces constituting a buzzer switch, and the pair of contact pieces can be switched by inserting and removing the knob. Consisting of a movable contact piece and a fixed contact piece that are separated from each other, the movable contact piece is brought into contact with the contact of the lighting bulb circuit when the knob is inserted, and the movable contact piece is brought into contact with the fixed contact piece when the knob is pulled out. A portable security buzzer with a light, characterized by being configured as follows.