JPH0332784Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention relates to a vehicle speed limiting device, and in particular, the first and second pick-ups are integrally enclosed, and the pick-up part, igniter, and signal line are integrally covered. The present invention relates to a vehicle speed limiting device that can be coated to prevent unnecessary cancellation of vehicle speed limiting.

[Background Art] In recent years, with the improvement in speed performance of vehicles, vehicle speed limiting devices have been proposed from the viewpoint of safety and the like. In conventional vehicle speed limiters, when the vehicle reaches a set speed, the vehicle speed sensor outputs a signal to delay the ignition timing,
Vehicle speeds are restricted by reducing the number of ignitions and reducing vehicle speed.

[Problems to be solved by the invention] However, in conventional vehicle speed limiters, in order to release the vehicle speed limit, modifications such as removing the vehicle speed sensor consisting of a speedometer or tachometer or cutting the signal line are required. Therefore, it becomes impossible to detect the speed of the vehicle, the ignition characteristics cannot be changed, and the vehicle speed cannot be limited.

[Purpose of the invention] Therefore, in order to eliminate the above-mentioned inconvenience, the purpose of this invention is to provide a first pick-up for detecting the engine ignition state and a second pick-up for detecting the axle rotation state on separate shafts, and to The pickup section is formed by integrally enclosing the pickup section and the second pickup section, and a box body is provided that integrally covers the pickup section and the igniter and the signal line connecting the pickup section and the igniter. The object of the present invention is to realize a vehicle speed limiting device that can prevent modification such as removal of the signal line or cutting of the signal line, and can achieve reliable vehicle speed restriction.

[Means for Solving the Problems] In order to achieve this object, this invention provides a first pick-up for detecting the engine ignition state and a second pick-up for detecting the axle rotation state, respectively, on separate shafts. A first pick-up and a second pick-up are integrally covered to form a pick-up part, and a box body is provided which integrally covers the pick-up part and the igniter and the signal line connecting the pick-up part and the igniter. It is characterized by

[Function] According to this invention, modifications such as removal of the first and second pickups and cutting of the signal line are prevented, and the ignition state is detected by the first and second pickups to ensure reliable vehicle speed restriction.

[Example] Hereinafter, an example of this invention will be described in detail based on the drawings.

1 to 4 show examples of this invention. In FIG. 1, 2 is an engine, and 4 is a first rotor for a generator. A first protrusion 6 is formed at one location on the outer circumference of the first rotor 4. Further, a second rotor 10 is provided at the same center as the drive sprocket 8, and second protrusions 12 are formed on the outer periphery of the second rotor 10 at four locations at equal intervals around the circumference. First and second pickups 14 and 16 are provided between the first and second rotors 4 and 10, respectively.
As shown in FIGS. 1, 2 and 4, the pick-ups 14 and 16 are integrally covered with a cover plate 18 to form a box-shaped pick-up portion 20. At this time, as shown in FIGS. 2 and 3, the back section 20Z of the pick-up section 20 is formed of a magnetic material, and the first pick-up 14 is attached to the inner surface of this back section 20Z, and the second pick-up section 20Z is attached via the permanent magnet 22. Attach pick-up 16. Further, only the tips 14a and 16a of the first and second pick-ups 14 and 16 are provided with holes 20 formed on both sides of the pick-up portion 20, respectively.
The rotors a and 20b are configured to protrude toward the first and second rotors 4 and 10, respectively.

Note that the reference numeral 24 is a drive chain that engages with the drive sprocket 8.

Further, as shown in FIG. 4, the pickup section 20 enclosing the first and second pickups 14 and 16 and the igniter 30 and a signal line 34 to be described later connecting the pickup section 20 and the igniter 30 are further integrated. Form a coating.

That is, the pickup section 20 and the igniter 3
0 and the signal line 34 are integrally covered to form a box body 32.

Next, the effect will be explained.

By driving the engine 2 and rotating the first rotor 4, the first protrusion 6 on the outer periphery of the first rotor 4
passes through the tip 14a of the first pick-up 14,
An electromotive force is generated in the magnetized first pickup 14 by electromagnetic induction. At this time, the second rotor 10 also rotates, the second protrusion 12 passes the tip 16a of the second pickup 16, and an electromotive force is generated in the second pickup 16 biased by the permanent magnet 22.

As a result, the first and second pick-ups 1
The ignition timing and vehicle speed can be detected by the electromotive force of 4 and 16, and when the vehicle speed exceeds a set value, a signal is output to the igniter 30 to change the ignition characteristics to limit the vehicle speed.

Furthermore, by integrally covering the first and second pick-ups with a cover plate to form a pick-up portion, removal of the first and second pick-ups is prevented, thereby preventing unnecessary modification of the vehicle speed limit. be able to.

Furthermore, the box body 32 allows the pickup section 2 to be
0 and the igniter 30, the pick-up section 2
Since the signal line 34 connecting the 0 and the igniter 30 can also be covered, it is possible to prevent the signal line from being cut and to prevent unnecessary modification of the vehicle speed limit, thereby contributing to improving safety during driving. This increases the reliability of the vehicle speed limiting device.

[Effects of the invention] As explained in detail above, according to this invention, the first pick-up for detecting the engine ignition state and the second pick-up for detecting the axle rotation state are provided on separate shafts, and the first pick-up and the second pick-up are provided on separate shafts. The pick-up part is integrally covered with the pick-up part, and the pick-up part and the igniter are integrally covered with a signal line connecting the pick-up part and the igniter. Modifications such as cutting the wire can be prevented,
It is possible to achieve a reliable vehicle speed limit.

Additionally, the reliability of the device is increased, contributing to improved safety during driving.

Furthermore, it is possible to detect the rotational state of the axle and output a vehicle speed signal, which can be used not only as a signal for adjusting an igniter, but also as a signal source for a speedometer and other devices.

[Brief explanation of the drawing]

Figures 1 to 4 show an embodiment of this invention, Figure 1 is a schematic diagram of the engine part, Figure 2 is a cutaway perspective view of the main part of the pickup section, and Figure 3 shows how the second pickup is installed. The perspective view and FIG. 4 are schematic diagrams of the engine parts. In the figure, 2 is the engine, 4 is the first rotor,
6 is the first protrusion, 8 is the drive sprocket, 10
1 is a second rotor, 12 is a second projection, 14 is a first pick-up, 16 is a second pick-up, 18 is a cover plate, 20 is a pick-up part, 22 is a permanent magnet, 2
4 is a drive chain, 30 is an igniter, 32 is a box body, and 34 is a signal line.

Claims (1)

[Scope of utility model registration request] A first pick-up for detecting the engine ignition state and a second pick-up for detecting the axle rotation state are provided on separate shafts, and the first pick-up and the second pick-up are integrally encapsulated to form a pick-up portion, A vehicle speed limiting device characterized in that a box body is provided that integrally covers the pick-up part and the igniter, and a signal line connecting the pick-up part and the igniter.