JP2008049823A - Blowout detection device of supporting wheel tire for magnetic floating type vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a blowout detection device of a supporting wheel tire for a magnetic floating type vehicle capable of detecting blowout of the supporting wheel tire for the magnetic floating type vehicle by an inexpensive system with a simple structure without impairing reliability. <P>SOLUTION: The blowout detection device of the supporting wheel tire for the magnetic floating type vehicle is provided with the supporting wheel tire 1; an external contact auxiliary wheel 2 provided on the supporting wheel tire 1; a radio transmitter 5 arranged on a crown surface part 3 of the external contact auxiliary wheel 2; and a radio receiver 6 for receiving a radio wave from the radio transmitter 5. When the supporting wheel tire 1 blows out and the crown surface part 3 of the external contact auxiliary wheel 2 contacts a traveling road surface 7, the radio transmitter 5 emits a signal for informing the blowout. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a puncture detection device for supporting wheel tires of a magnetically levitated vehicle.

  Conventionally, a magnetically levitated vehicle need not use a supporting wheel tire when ascending, but uses a supporting wheel tire before the vehicle ascends and when the vehicle lands.

  A magnetically levitated vehicle travels with supporting wheel tires that are mounted on each vehicle during wheel traveling. Therefore, in the unlikely event that puncture occurs in the support wheel tire, it is necessary to take a stop treatment promptly, so the function of detecting the occurrence of puncture in the support wheel tire is important.

  On the other hand, since the supporting wheel tires used are hollow, each supporting wheel is now equipped with an internal pressure detection device that directly detects the internal pressure of each supporting wheel tire to monitor the internal pressure before reaching the supporting wheel puncture. However, the current apparatus has a very complicated structure and is an expensive system.

  FIG. 4 is a view showing a tire of such a conventional magnetically levitated vehicle, and FIG. 5 is a view showing a pressure sensor for detecting the air pressure of the tire.

  4 and 5, 101 is a supporting wheel tire (hollow) of a magnetically levitated vehicle, 102 is a circumscribing auxiliary wheel, 103 is a pressure sensor mounting portion, 104 is a drawer cable, and 105 is a case for housing a sensor signal transmission circuit. 106 are tire wheels.

  The tire 101 of such a magnetically levitated vehicle is provided with a pressure sensor (not shown), and an output signal from the pressure sensor is led out to the case 105 via the lead-out cable 104. .

Also, in ordinary automobile tires, (1) there is a system that interrogates a tire sensor, a wheel including a sensor and an electric conductor is provided, the electric conductor extends around the rotation axis of the wheel, and the sensor is electrically Electrically connected to the conductor. With this configuration, communication between the sensor and the remote device for interrogation is improved (see Patent Document 1 below). (2) In a mounting structure of a tire condition monitoring device for attaching a monitoring sensor to a part of a rim of a tire wheel, a fitting for fitting and mounting a monitoring sensor composed of a sensor body and a sensor holder on a part of the rim. There is disclosed a structure in which a joint portion is formed and the monitoring sensor is attached to the fitting portion so as not to protrude from the surface of the rim (see Patent Document 2 below).
JP 2005-537166 Gazette JP 2005-324732 A

  However, as described above, the current apparatus is high-speed, vibrated, and used in a poor environment. Therefore, the structure is very complicated and an expensive system is required to ensure reliability. ing.

  Moreover, the conventional monitoring device for ordinary automobile tires has a problem that its configuration is complicated.

  The present invention eliminates the above-described problems and provides a support wheel tire for a magnetic levitation vehicle that can detect a puncture of a support wheel tire for a magnetic levitation vehicle with an inexpensive system with a simple structure without impairing reliability. An object is to provide a puncture detection device.

In order to achieve the above object, the present invention provides
[1] In a puncture detection device for a supporting wheel tire of a magnetically levitated vehicle,
A support wheel tire, a circumscribed auxiliary wheel provided on the support wheel tire, a radio transmitter disposed on a head surface portion of the circumscribed auxiliary wheel, and a radio receiver that receives radio waves from the radio transmitter When the support wheel tire is punctured and the head surface portion of the circumscribed auxiliary wheel is in contact with the road surface, the wireless transmitter emits a signal indicating puncture.

  [2] In the puncture detection device for a support wheel tire of the magnetically levitated vehicle according to [1] above, the wiring to the radio transmitter is arranged on a head surface portion of the circumscribed auxiliary wheel, and the puncture is caused by cutting the wiring. This is notified.

  [3] In the puncture detection device for a support wheel tire of a magnetically levitated vehicle according to [2] above, the wireless transmitter transmits a weak radio wave in a normal state, and when the support wheel tire is punctured, It is characterized by notifying that it is a puncture when the signal is interrupted.

  ADVANTAGE OF THE INVENTION According to this invention, the puncture detection apparatus of the support wheel tire of a magnetic levitation type vehicle can be provided with a simple structure and a reliable and inexpensive system.

  A puncture detection device for a supporting wheel tire of a magnetically levitated vehicle according to the present invention includes a supporting wheel tire, a circumscribed auxiliary wheel provided on the supporting wheel tire, a radio transmitter disposed on a head surface portion of the circumscribed auxiliary wheel, A radio receiver for receiving radio waves from the radio transmitter, the support wheel tire is punctured, and the head surface portion of the circumscribed auxiliary wheel is in contact with the traveling road surface, the radio transmitter is punctured. It has the function to alert | report.

  Hereinafter, embodiments of the present invention will be described in detail.

  FIG. 1 is a schematic diagram of a puncture detection device for supporting wheel tires of a magnetically levitated vehicle according to the present invention, FIG. 2 is a schematic diagram showing an arrangement state of the radio transmitter, and FIG. 3 is a block diagram of the radio transmitter.

  In FIG. 1, 1 is a supporting wheel tire, 2 is a circumscribed auxiliary wheel provided on the supporting wheel tire 1, 3 is a head surface portion of the circumscribed auxiliary wheel 2, 4 is an axle that can be raised and lowered, and 5 is a radio transmitter. , 6 is a radio receiver for receiving radio waves from the radio transmitter 5, and 7 is a running surface of the support wheel tire 1. The wireless transmitter 5 is firmly fixed to the side surface of the circumscribed auxiliary wheel 2.

  Here, as shown in FIGS. 2 and 3, the wireless transmitter 5 includes a power source 5A, a wiring 5B connected to the power source 5A, a transmission unit 5C, and a transmission antenna 5D.

  As described above, a circumscribing auxiliary wheel 2 is provided for handling rotation support when the support wheel tire 1 is punctured. When the puncture of the support wheel tire 1 occurs, the head surface portion 3 of the circumscribed auxiliary wheel 2 is For the first time, it will contact the running surface 7 of the support wheel tire 1. Then, as shown in FIG. 2, the wiring 5 </ b> B of the wireless transmitter 5 is disposed on the head surface portion 3 of the circumscribed auxiliary wheel 2. Therefore, the head surface portion 3 of the circumscribed auxiliary wheel 2 comes into contact with the traveling surface 7 of the supporting wheel tire 1, and a radio signal is generated from the radio transmitter 5 using this contact occurrence as a trigger. For example, a signal can be transmitted from the wireless transmitter 5 by sensing the grounding of the wiring 5 </ b> B of the wireless transmitter 5.

  Alternatively, the signal from the radio transmitter 5 that has transmitted the signal by the head surface portion 3 of the circumscribed auxiliary wheel 2 coming into contact with the traveling surface 7 of the supporting wheel tire 1 and disconnecting the wiring 5B of the radio transmitter 5. The puncture of the supporting wheel tire 1 may be detected by receiving the signal with the wireless receiver 6 mounted on the magnetic levitation vehicle.

  According to the present invention, the radio transmitter 5 is arranged on the circumscribing auxiliary wheel 2 of the support wheel tire 1, and the puncture detection signal of the support wheel tire 1 is received from the radio transmitter 5. Thereby, the puncture of the support wheel tire 1 can be detected.

  In addition, this invention is not limited to the said Example, A various deformation | transformation is possible based on the meaning of this invention, and these are not excluded from the scope of the present invention.

  The puncture detection device for the support wheel tire of the magnetic levitation vehicle according to the present invention can be used for detecting the puncture of the support wheel tire of the magnetic levitation vehicle with a simple configuration.

It is a schematic diagram of the puncture detection apparatus of the support wheel tire of the magnetic levitation type vehicle of the present invention. It is a schematic diagram which shows the arrangement | positioning state of the radio | wireless transmitter of the puncture detection apparatus of the support wheel tire of the magnetic levitation type vehicle of this invention. It is a block diagram of the radio | wireless transmitter of the puncture detection apparatus of the support wheel tire of the magnetic suspension type vehicle of this invention. It is a schematic diagram which shows the tire of the conventional magnetic levitation type vehicle. It is a schematic diagram which shows the attachment state of the pressure sensor which detects the pneumatic pressure of the tire of the conventional magnetic levitation type vehicle.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Support wheel tire 2 circumscribing auxiliary wheel 3 head part of circumscribing auxiliary wheel 4 axle which can be raised / lowered 5 radio transmitter 6 radio receiver 7 traveling surface of supporting wheel tire

Claims (3)

(A) a supporting wheel tire;
(B) a circumscribed auxiliary wheel provided on the supporting wheel tire;
(C) a radio transmitter disposed on the head surface of the circumscribed auxiliary wheel;
(D) comprising a radio receiver for receiving radio waves from the radio transmitter;
(E) When the supporting wheel tire is punctured and the head surface portion of the circumscribed auxiliary wheel comes into contact with the traveling road surface, the radio transmitter emits a signal notifying that it is punctured. Puncture detection device for supporting wheel tires.   2. The puncture detection device for a support wheel tire of a magnetically levitated vehicle according to claim 1, wherein a wiring to the radio transmitter is arranged on a head surface portion of the circumscribed auxiliary wheel, and a puncture is notified by cutting the wiring. A puncture detection device for supporting wheel tires of a magnetically levitated vehicle.   3. The puncture detection device for a support wheel tire of a magnetically levitated vehicle according to claim 2, wherein the radio transmitter transmits a weak radio wave at a normal time, and the signal from the radio transmitter is interrupted when the support wheel tire is punctured. A puncture detecting device for supporting wheel tires of a magnetically levitated vehicle, characterized in that it is informed that the vehicle is punctured.

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