JP3024349U - Stop lamp lighting device linked to the exhaust brake - Google Patents

Abstract

(57) Abstract: [PROBLEMS] To provide a stop lamp lighting device that prevents a rear-end collision accident by lighting a stop lamp when an exhaust brake is used. SOLUTION: A changeover switch 1 for enabling operation of an exhaust brake provided in a driver's seat of a vehicle, a first switch 2 for detecting whether or not an accelerator is operated, and whether or not a clutch is operated. Second switch 3 for detecting
A first circuit 6 in which a solenoid coil 4 of an electromagnetic valve provided for an exhaust brake is connected in series, a third switch 8 for detecting that a foot brake is operated, and a third switch 8 A second circuit 7 including a stop lamp 9 and 9 that lights up when the operation of the foot brake is detected, a relay drive circuit 11 that detects a terminal voltage of the solenoid coil 4 and drives a relay 10, and a relay 1.
It is characterized in that the contact circuit 10a of 0 is constituted by a relay switch circuit 12 in which the third switch 8 is connected in parallel.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 The present invention relates to a stop lamp lighting device linked to an exhaust brake, which is capable of lighting the stop lamp in conjunction with the use of the exhaust brake of a large vehicle such as a truck.

[0002]

[Prior art]

 Conventionally, large vehicles such as trucks are equipped with an exhaust brake, which strengthens the brake condition and enhances the braking performance of the truck.However, when the exhaust brake operates, a foot brake is used. On the other hand, since the stop lamp does not light up, the following vehicle cannot immediately recognize the speed-down of the preceding vehicle due to the exhaust brake, so that the following vehicle collides with a large vehicle equipped with the exhaust brake for a while. There are many accidents.

[0003]

[Problems to be solved by the device]

 The present invention has been made in view of the above-mentioned points, and an object thereof is to turn on a stop lamp like a foot brake when an exhaust brake is used in a large vehicle equipped with an exhaust brake. Therefore, a new stop lamp tuning device that prevents a rear-end collision is provided.

[0004]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, a stop lamp lighting device according to the present invention interlocks with an exhaust brake, and a switch for enabling the operation of an exhaust brake provided in a driver's seat of a vehicle and whether or not an accelerator is operated. The first switch for detecting whether or not the clutch is operated, the second switch for detecting whether or not the clutch is operated, and the solenoid coil of the solenoid valve provided for the exhaust brake are connected in series. A second circuit comprising a circuit, a third switch for detecting that the foot brake is operated, and a stop lamp that is turned on when the third switch detects the operation of the foot brake; and the solenoid coil. The relay drive circuit that detects the terminal voltage of the relay and drives the relay, and the relay circuit that connects the contact circuit of this relay to the third switch in parallel. Characterized by being composed of a switch circuit.

[0005]

[Embodiment of device]

 An embodiment of a stop lamp lighting device linked to an exhaust brake according to the present invention will be described with reference to FIG. In the figure, reference numeral 1 is provided in a driver's seat of a large vehicle such as a truck, and a changeover switch is operated to change over when the exhaust brake B is to be operated. 1 switch (this switch is OFF during accelerator operation), 3 is a second switch that detects whether or not a clutch (not shown) is in operation (this switch is in operation during clutch operation) 4 is a solenoid coil of an electromagnetic valve provided for the exhaust brake B, and includes a switching switch 1, a first switch 2, a second switch 3 and a solenoid coil 4 in a battery 5 To form a first circuit 6.

Reference numeral 7 denotes a second circuit. The second circuit 7 includes a third switch 8 for detecting that a foot brake (not shown) is operated, and a pair of stops that are turned on when the operation of the foot brake is detected. The third switch 8 and the stop lamp 9 are connected to the battery 5 in series to form the second circuit 7.

In the present invention, a relay drive circuit 11 is provided for detecting the terminal voltage of the solenoid coil 4 and driving the relay 10 when the terminal voltage exceeds a predetermined value. The circuit 10a is connected in parallel to the third switch 8 to form a relay switch circuit 12 so that the stop lamps 9 and 9 are turned on when the exhaust brake B is activated.

In the stop lamp lighting device configured as described above, when the exhaust brake B is used while the vehicle is traveling, when the changeover switch 1 is operated, the exhaust brake B becomes operable. In this state, for example, when the accelerator operation is stopped, the exhaust brake B is activated and the first circuit 6 is brought into conduction, so that a current flows through the solenoid coil 4. Then, the terminal voltage of the solenoid coil 4 is amplified by the relay drive circuit 11, and the relay drive circuit 11 operates the relay 10.

When the relay 10 is activated, the contact circuit 10 a of the relay 10 is closed, so that the second circuit 7 becomes conductive via the relay switch circuit 12 and a current flows through the second circuit 7. Then, the stop lamps 9 and 9 are turned on. Although the vehicle slows down with the operation of the exhaust brake B, the stop lamps 9 and 9 light up, so that the following vehicles can easily recognize that the vehicle has slowed down in the same manner as when using the foot brake. It is possible to prevent a rear-end collision accident. Even in this state, when the exhaust brake B is not operated, the contact circuit 10a of the relay 10 is open, so that the stop lamps 9 1 and 9 2 are turned on according to the operation of the foot brake.

[0010]

[Effect of device]

 Since the stop lamp lighting device interlocked with the exhaust brake according to the present invention is configured as described above, when the exhaust brake is used, the stop lamp of the vehicle is lit to notify the following vehicle that the vehicle has slowed down. As a result, the brake lights will be activated and it will be possible to recognize the speed down of the vehicle as in the case of using the foot brake, and it is possible to prevent a rear-end collision. Moreover, since it has a simple structure and can be realized at low cost, it has excellent features such as easy implementation.

[Brief description of drawings]

FIG. 1 is a circuit diagram showing an embodiment of the present invention.

[Explanation of symbols]

 1 Changeover switch 2 1st switch 3 2nd switch 4 Solenoid coil 5 Battery 6 1st circuit 7 2nd circuit 8 3rd circuit 9 Stop lamp 10 Relay 10a Contact circuit 11 Relay drive circuit 12 Relay switch circuit

Claims (1)

[Scope of utility model registration request] 1. A changeover switch provided in a driver's seat of a vehicle for enabling operation of an exhaust brake, a first switch for detecting whether or not an accelerator is operated, and whether or not a clutch is operated. A second switch for detecting
A first circuit in which a solenoid coil of an electromagnetic valve provided for the exhaust brake is connected in series, a third switch for detecting that a foot brake is operated, and the third circuit
When the switch of detects the operation of the foot brake,
A second circuit including a lit stop lamp, a relay drive circuit that detects a terminal voltage of the solenoid coil and drives a relay, and a relay circuit in which a contact circuit of the relay is connected in parallel to the third switch. A stop lamp lighting device interlocked with the exhaust brake, characterized by being configured with a switch circuit.