JPS6032389Y2 - car speed limiter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a speed limiting device for a vehicle that can forcibly reduce the vehicle speed by cutting off the ignition circuit of the vehicle when the vehicle attempts to drive at a speed exceeding the speed limit.

Traditionally, methods to control excessive speeding include, for example, sounding a chime when the speed exceeds 100 krIt on an expressway to warn the driver that the speed limit has been exceeded, restrictions imposed by traffic enforcement, or measures taken by the driver himself. There was no way to fundamentally prevent speeding violations other than leaving it to the police to refrain from driving.

In order to prevent speeding violations, this invention uses a speed detector that detects the speed of a moving vehicle and a speed-sensitive switch that is activated by this speed detector to automatically detect speed violations when the speed limit is exceeded. The engine's ignition circuit is cut off and the engine is decelerated, thereby forcibly preventing speeding violations.Also, when driving on expressways and local roads, the speed limit can be set to two levels, high speed and low speed, using the speed limit setting handle. In addition to being able to switch the speed limit setting handle, the speed limit setting handle is installed outside the vehicle, such as on the roof of the vehicle, so that it can be operated, for example, by an official at the entrance to an expressway, and the switching state of the speed limit setting handle is also installed outside the vehicle. This can be confirmed by the high speed and low speed indicators, so even if a driver abuses the speed limit setting handle and switches to high speed while driving on a general road, the switching status will be displayed on the above display. It is an object of the present invention to provide a vehicle speed limiting device that can easily be checked from the outside by the speed limiter, thereby facilitating traffic enforcement for speeding violations and encouraging drivers to exercise self-restraint.

Hereinafter, one embodiment of the present invention will be specifically described based on the embodiment shown in the drawings.

In the illustrated example, the speed detector 1 has the same principle and structure as a conventionally known automobile speedometer, and is connected to the automobile transmission etc. by a vehicle speed transmission cable 2, and rotates at a rotation angle proportional to the traveling speed of the automobile. It rotates a shaft 6, and is composed of a rotating outer cylinder 3, a rotating inner cylinder 4, a brake spring 5, and a rotating shaft 6.

The speed sensitive switch 7 controls the ignition circuit on and off depending on the running speed of the vehicle, and includes an insulating tube 10 attached to the rotating shaft 6, a sliding contact piece 9 fixed to the insulating tube 10, and a fixed electrode. The sliding contact piece 9 is driven by the speed detector 1 and slides on the fixed electrode 8,
Further, the fixed electrode 8 is partially insulated and divided into a conductive region and a non-conductive region, and when the sliding contact piece 9 slides on the fixed electrode 8 and rotates, the ignition circuit is controlled on and off. be.

Further, a speed limit setting handle 11 is attached to the fixed electrode 8, and is configured to switch the speed limit into two stages: high speed and low speed.

Fig. 2a shows a state in which the handle 11 is set to the low speed side, and Fig. 2b shows a state in which the handle 11 is set to the high speed side. The angles at which the conductive regions 8 are slid and rotated are switched to θ1 and θ2, respectively.

Further, the high speed switch S1 and the low speed switch S2 are linked to the speed limit setting handle 11, and when the handle is in the high speed position, the high speed switch S1 closes, lighting up the high speed display 16 shown in FIG. When the steering wheel is in the low speed position, the low speed switch S2 closes and the low speed indicator 17 lights up.

Further, the vehicle speed limiter 15 based on the present invention is attached to the roof 19 of the vehicle 18 in this embodiment, and the speed limit setting handle 11 is made to protrude from the side wall of the vehicle speed limiter 15 to the outside.

Incidentally, the vehicle speed limiter 15 may be installed inside the vehicle, and only the speed limit setting handle 11 or a lever for remotely controlling this handle 11 may be provided on the roof 19 of the vehicle 18, etc.; in this case, of course. However, it goes without saying that remote control will be required using electromagnetic solenoids and the like.

With this configuration, the rotation transmitted by the vehicle speed transmission cable 2 causes the speed detector 1 to rotate the rotary shaft 6 at a rotation angle proportional to the vehicle speed, thereby rotating the sliding contact piece 9 driven by the rotary shaft 6.

Now, if the speed limit setting handle 11 is set to the low speed side as shown in FIG. When the sliding contact piece 9 starts to rotate from position 13 and exceeds the lower speed limit (for example, 50 m/hour), the sliding contact piece 9
reaches the non-conductive area of the fixed electrode 8, the ignition circuit of the car is cut off, the engine braking action is activated and the car is decelerated, and when the car speed returns to the lower speed limit again, the sliding contact piece 9
The fixed electrode 8 becomes conductive, and the ignition circuit of the automobile becomes conductive, so that the automobile continues to run.

Furthermore, when the speed limit setting knob 11 is set to the high speed side as shown in Figure 2, the conductive area θ2 where the sliding contact piece 9 conducts with the fixed electrode 8 and slides expands, and the automobile It becomes possible to increase the speed up to the speed limit (for example, 80 b/hr).

In addition, the high-speed switch S1 and the low-speed switch S2, which operate in conjunction with the speed limit setting handle 11, are used as shown in FIG.
The set position of the speed limit setting handle 11 can be confirmed from outside the vehicle by lighting up the high speed display 16 and the low speed display 17 attached to the roof 19 of the automobile 18 shown in FIG. 4.

FIGS. 3 and 4 are specific examples showing the state in which the vehicle speed limiter 15 is actually installed in a vehicle.

This embodiment decelerates the car by cutting off the car's ignition circuit when the driver tries to drive the car over the speed limit, forcing the driver to comply with the speed limit, and The speed limit can also be changed when driving on general roads.

In addition, in order to avoid abuse of the speed limit setting handle, this device is installed outside the vehicle, and when driving on an expressway, the speed limit setting handle can be operated by an official at the entrance of the expressway. Even if a vehicle abuses the steering wheel while driving on a general road, the switching status of the steering wheel can be checked from the outside using high-speed and low-speed indicators installed outside the vehicle, making it easy to conduct traffic enforcement for speeding violations. This can encourage drivers to refrain from speeding.

As described above, the present invention uses a speed detector that detects the speed of a car and a speed sensitive switch that is driven by the speed sensor to operate.When the car is driven over the speed limit, the ignition circuit of the car is disconnected and the engine is turned off. The brakes decelerate the vehicle, forcibly preventing violations of the speed limit, and the speed limit setting handle, a switch that operates in conjunction with this, and a high-speed/low-speed indicator that lights up due to this switch are used to prevent the vehicle from violating the speed limit. When driving on general roads, the speed limit can be changed to each legal speed limit, and the speed limit setting handle can be prevented from being misused.

[BRIEF DESCRIPTION OF THE DRAWINGS] Fig. 1 is a schematic perspective view showing an embodiment of the present invention, Figs. 2 a and b are enlarged plan views of the speed sensitive switch portion, and Figs. 3 and 4 are diagrams showing the embodiment of the present invention. A specific installation example is shown, with FIG. 3 being a plan view and FIG. 4 being a side view. DESCRIPTION OF SYMBOLS 1...Speed detector, 7...Speed sensitive switch, 2...Fixed electrode, 9...Sliding contact piece, 11... Speed limit setting handle, 15...
...Automobile speed limiter, 16...High speed indicator, 17...Low speed indicator, S□...
...High speed switch, S2...Low speed switch.

Claims (1)

[Scope of utility model registration request] It has a speed detector that detects the speed of the car, a sliding contact piece that is driven by the speed detector and rotates at an angle proportional to the speed of the car, and an annular fixed electrode on which the sliding contact piece slides. The sliding surface of the fixed electrode on which the sliding contact piece slides is divided into a conductive area and a non-conductive area, and when the speed of the automobile exceeds a predetermined speed limit, the sliding contact piece becomes non-conductive. A speed-sensitive switch is used to control the ignition circuit of an automobile intermittently by the on-off operation, and the fixed electrode of the speed-sensitive switch is rotated to change the ignition circuit from the on state to the off state. A speed limit setting handle that switches the separation angle between the conductive area and the zero speed position of the sliding contact when the vehicle is stopped according to the two-stage set speed limit, high and low, and detects the switching position of this speed limit setting handle. It is equipped with low-speed and high-speed switches, and low-speed and high-speed indicators that are energized by these switches to display the set speed limit, and the speed limit setting handle can be placed outside the vehicle, such as on the roof of the vehicle. A vehicle speed limiting device characterized in that it is installed in a vehicle.