JP2005315896A - Transponder for loading tire - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a transponder for loading a tire freely attachable to an existing tire. <P>SOLUTION: The transponder body 1A is arranged between two beltlike metal plates 1D, 1E and the metal plate 1D or 1E is welded to the rim of the tire or bonded to the rim of the tire, due to metal plates 1F, 1G provided between two pieces of the beltlike metal plates 1D, 1E as buffer members. This enables easily mounting to the existing tires and largely reducing of failure generation of a transponder itself compared with the conventional transponders, due to no requirement containing environmental conditions during manufacturing of tires in the durable conditions of the transponder. The transponder body 1A arranged between two pieces of the beltlike metal plates 1D, 1E by the metal plates 1F, 1G, so that the failure generation can be reduced. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a tire mounting transponder.

  When obtaining identification, internal pressure, temperature, rotation speed, etc. with respect to a tire, a technology of a type that receives electrical oscillation energy from a position away from a specific tire and sends a signal from a transponder embedded in the tire is known. It has been.

  In addition, the transponder includes an integrated circuit and an outer shell that protects the integrated circuit.

  An example of this type of technology is disclosed in Japanese Utility Model Laid-Open No. 2-123404. In this technique, the embedding position of the transponder in the tire is set at the center of the carcass ply winding-up portion tip level or on the outer surface of the carcass ply of the buttress portion.

  As another example, Japanese Utility Model Laid-Open No. 7-13505 discloses a pneumatic tire equipped with a transponder. This is an improvement of the technique described above. That is, in the above-described technology, the transponder is a foreign matter for the tire. Therefore, when embedded in the tire, the high temperature and high pressure that the transponder receives during the vulcanization process during tire manufacture and the external force that the transponder receives during load rolling of the tire There is a concern about the failure of the transponder itself due to heat generated by the tire. In order to solve these problems, in this pneumatic tire, a pocket for storing a transponder is provided in a raising part provided on the inner peripheral surface of the bead part of the toroidal tire.

As a result, the raised part having the pocket for storing the transponder is provided in the bead part that moves less on the inner peripheral surface of the tire and is not moved from the part constituting the tire, so there is no adverse effect on the tire, and the pocket Since the transponder can freely enter and exit, the stored transponder can be inspected or replaced when necessary.
Japanese Utility Model Publication No. 2-123404 Japanese Utility Model Publication No.7-153505

  However, in the former case of the conventional example, as described above, the transponder is a foreign matter for the tire. Therefore, if the transponder is embedded in the tire body, the high temperature and high pressure that the transponder receives in the vulcanization process at the time of tire manufacture, and the load rolling of the tire Occasionally, the transponder itself may fail due to the external force received by the transponder and the heat generated by the tire.

  Further, in the latter case, there are problems in that the transponder mounting position is limited and the pocket forming process is required, so that the transponder cannot be mounted on the existing tire.

  In view of the above problems, an object of the present invention is to provide a tire mounting transponder that can be freely attached to an existing tire.

  In order to achieve the above object, the present invention provides a tire mounting transponder that transmits and receives information according to a predetermined signal. In the transponder main body between two strip-shaped metal mounting plates having a predetermined thickness. We propose a transponder for mounting tires, which is characterized by having a pin.

  According to the tire mounting transponder, the transponder body is sandwiched between the two strip-shaped metal mounting plates, so that when mounting on the tire, the mounting plate is welded to the tire rim, or the mounting plate. Is bonded to the rim of the tire and can be easily attached to an existing tire.

  According to claim 2, there is proposed a tire mounting transponder according to claim 1, wherein a buffer plate for protecting the transponder body is provided between the two metal mounting plates. To do.

  According to the tire mounting transponder, the buffer plate is provided between the two mounting plates, thereby protecting the transponder body sandwiched between the mounting plates.

  According to a third aspect of the present invention, in the tire mounting transponder according to the second aspect, the buffer plate is made of a metal plate insulated from the two metal mounting plates, and the metal plate is connected to the transponder body as an antenna. We propose a tire-mounted transponder characterized by the above.

  According to the tire mounting transponder, the buffer plate between the two mounting plates is connected to the transponder body as an antenna. Since the mounting plate and the buffer plate have a band shape, for example, when the buffer plate serving as the antenna is embedded along the longitudinal direction of the mounting plate, the length of the antenna can be increased and the entire inner circumference of the tire It is also possible to go around the antenna. This makes it possible to access the transponder from any location outside the tire.

  According to the tire mounting transponder of the first aspect of the present invention, since the transponder body is sandwiched between the two strip-shaped metal mounting plates, the mounting plate is attached to the tire rim during mounting on the tire. Since it can be welded or the mounting plate is bonded to the tire rim and can be easily mounted on an existing tire, the transponder can be easily mounted on an existing tire or after the tire is manufactured. In addition, it is not necessary to include the environmental conditions at the time of tire manufacture in the endurance conditions of the transponder, and the occurrence of failure of the transponder itself is greatly reduced compared to the conventional case.

  According to the tire mounting transponder according to claim 2, in addition to the above-described effect, a buffer plate is provided between the two mounting plates, whereby a transponder body sandwiched between the mounting plates is provided. Since it is protected, the occurrence of failure can be further reduced.

  According to the tire mounting transponder according to claim 3, in addition to the above effect, the buffer plate between the two mounting plates is connected to the transponder body as an antenna, and the mounting plate and the buffer plate have a belt shape. Therefore, for example, if a buffer plate serving as the antenna is embedded along the longitudinal direction of the mounting plate, the length of the antenna can be increased and the antenna can be circulated throughout the tire inner periphery. . This makes it possible to access the transponder from any location outside the tire.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is an external view showing a tire mounting transponder in a first reference example of the present embodiment. In the figure, reference numeral 1 denotes a transponder, which is composed of a transponder body 1A and an adhesive portion 1B. In the transponder body 1A, an electronic circuit and an antenna line are formed on a ceramic substrate by printing, and the electronic circuit is molded with a ceramic insulator, and has a rectangular parallelepiped shape that is 10 mm in length and width and 2 mm in thickness.

  An adhesive portion 1B having the same shape as that of the transponder body 1A is attached to the lower surface of the transponder body 1A. The bonding portion 1B is made of an elastic member having insulating properties and heat insulation properties, and by applying an adhesive or the like to the elastic member, the transponder 1 can be mounted in an arbitrary tire to be mounted. .

  FIG. 2 is a block diagram of an electric circuit showing the transponder body 1A. In the figure, reference numeral 1A denotes a transponder body, which includes a reception antenna 11, a rectifier circuit 12, a central processing unit 13, a storage unit 14, a transmission unit 15, and a transmission antenna 16.

  The rectifier circuit 12 includes diodes 121 and 122, a capacitor 123, and a resistor 124, and forms a known full-wave rectifier circuit. A reception antenna 11 is connected to the input side of the rectifier circuit 12, and a high-frequency current induced in the reception antenna 11 is rectified and converted into a direct current, and the central processing unit 13, the storage unit 14, and the transmission unit 15 It is output as a drive power supply.

  The central processing unit 13 includes a well-known CPU 131 and a digital / analog (hereinafter referred to as D / A) converter 132. When the CPU 131 is driven by being supplied with power, it is stored in a storage unit 14 including a semiconductor memory such as an EEPROM. The stored information is read and this information is output to the transmitter 15 via the D / A converter 132.

  The transmission unit 15 includes an oscillation circuit 151, a modulation circuit 152, and a high-frequency amplification circuit 153. Based on an information signal input from the central processing unit 13, for example, a 300 MHz carrier wave oscillated by the oscillation circuit 151, the modulation circuit 15 The signal is modulated by 152 and supplied to the transmitting antenna 16 via the high-frequency amplifier circuit 153.

  On the other hand, for the above-described transponder 1, for example, a scanner as shown in FIG. 3 is used. In the figure, reference numeral 2 denotes a scanner, which comprises a reception antenna 21, a reception unit 22, a central processing unit 23, a keyboard 24, a display unit 25, a transmission unit 26, a transmission antenna 27, and a power supply unit 28 for supplying power to them. Has been.

  Here, as described later, the scanner 2 in the present reference example radiates the first frequency electromagnetic wave to the transponder 1 and receives the second frequency electromagnetic wave radiated from the transponder 1 accordingly. By doing so, the information access to the transponder 1 is said.

  The receiving unit 22 of the scanner 2 includes a receiver 221 and an analog / digital (hereinafter referred to as A / D) converter 222. The input side of the receiver 221 is connected to the receiving antenna 21, and has a high frequency of 300 MHz. After receiving and detecting this, it is output to the central processing unit 23 via the A / D converter 222.

  The central processing unit 23 includes a known CPU 231 and a memory 232, and the central processing unit 231 stores information input from the receiving unit 22 in the memory 232 and a display unit 25 based on a command input from the keyboard 24. To display.

  Further, the oscillation unit 26 includes a transmission circuit 261 and a switch 262. The transmission circuit 261 outputs a high frequency signal of, for example, 100 KHz to 300 KHz to the transmission antenna 27 when the switch 262 is turned on.

  The scanner 2 is incorporated in a pistol-shaped housing 2A, for example, as shown in FIG. A receiving antenna 21 and a transmitting antenna 27 are arranged at the front end of the housing 2A, and a keyboard 24 and a display unit 25 are arranged on the top surface. Further, a switch 262 is disposed at the trigger position in front of the grip 2B.

  As shown in FIG. 5, the transponder 1 having the above-described configuration is attached to the inner wall surface 31 of the tire 3, the surface of the rim 32, the core 33, or the like. Therefore, it can be mounted on all types of tires as well as existing tires, and there is no risk of occurrence of conventional tire peeling failure. It is not necessary to include environmental conditions in the durability conditions of the transponder, and the occurrence of failure of the transponder itself is greatly reduced compared to the conventional case.

  Further, since the transponder 1 is attached via an elastic member having insulating properties and heat insulation properties, heat conduction and impact from the tire and conduction of static electricity generated in the tire are absorbed or alleviated by the elastic member, and the transponder is transferred to the transponder. The effect of is avoided.

  Further, as shown in FIG. 6, the management of the tire with the transponder attached can be easily performed at the time of manufacture or the like by using the above-described handy scanner 2, and the data processing device 41 can be used for transmission and reception. By connecting the antennas 43a and 43b via the controller 42, the management terminal 44 can perform centralized management of tires in use with the transponder 1 attached. In this case, as shown in FIG. 7, by providing the antenna 43a along the road on which the vehicle 5 such as a truck with a transponder-equipped tire travels, the tire of the traveling vehicle 5 can also be managed.

  Furthermore, as shown in FIG. 6, by providing a processing device 45, a display unit 46 connected thereto, and an in-vehicle antenna 47 in the vehicle, it is possible to easily obtain information on tires used by the driver in the driver's seat. Can do.

  Next, a second reference example of the present invention will be described.

  FIG. 8 is a block diagram showing a tire mounting transponder of a second reference example. In the figure, the same components as those of the first reference example described above are denoted by the same reference numerals, and description thereof is omitted. Further, the difference between the first reference example and the second reference example is that the length is further increased in place of the bonding portion 1B in the first reference example, and the bonding portion 1C in which the antennas 11 and 16 are embedded is provided. It is in having established.

  The adhesive portion 1C is made of an elastic member having an insulating property as described above. The transponder body 1A is bonded to the substantially central portion of the surface, and an adhesive or the like is applied to the back surface of the adhesive portion 1C, thereby The transponder 1 can be mounted in any desired tire. Here, it is desirable that the antennas 11 and 16 have a length that is an integral multiple of λ / 4 of the operating frequency.

  According to the transponder 1 having the above-described configuration, the antennas 11 and 16 are embedded in the bonding portion 1C, and the bonding portion 1C has a band shape. For example, the antennas 11 and 16 along the longitudinal direction of the bonding portion 1C. Is embedded, the length of the antenna can be increased, and if the transponder 1 is attached by extending the adhesive portion 1C in the circumferential direction of the tire, the antenna can be routed over the entire inner circumference of the tire. As a result, the transponder 1 can be accessed from any location outside the tire.

  Next, a third reference example of the present invention will be described.

  FIG. 9 is a block diagram showing a tire mounting transponder of a third reference example. In the figure, the same components as those of the second reference example described above are denoted by the same reference numerals, and description thereof is omitted. Further, the difference between the second reference example and the third reference example is that at least a part of the antennas 11 and 16 in the second reference example are formed in a spiral shape or a wave shape and embedded in the bonding portion 1C. It is to have done.

  Thereby, since at least a part of the antennas 11 and 16 are formed in a spiral shape or a wave shape, even when the elastic tire is deformed, the antenna wire expands and contracts in the spiral shape or the wave shape portion. It is not cut off, and it is possible to reduce failure due to antenna disconnection.

  Next, examples of the present invention will be described.

  10 is an exploded perspective view showing a transponder according to an embodiment of the present invention, and FIG. 11 is a side sectional view. In the figure, the same components as those in the first to third reference examples described above are denoted by the same reference numerals and the description thereof is omitted. That is, reference numeral 1 denotes a transponder, which is composed of a transponder body 1A, two metal plates 1D and 1E having a predetermined length and width, and metal plates 1F and 1G coated with insulation.

  The transponder main body 1A is sandwiched between the two metal plates 1D and 1E, and is located at substantially the center thereof. Further, between the two metal plates 1D and 1E, metal plates 1F and 1G are sandwiched as a buffer member in a portion other than the transponder main body 1A, and these are fixed by an adhesive.

  Furthermore, although not shown, the metal plates 1F and 1G are connected to a circuit in the transponder body 1A so as to be in an electrically conductive state so that they can be used as the antennas 11 and 16 described above.

  When the transponder 1 having the above-described configuration is mounted on a tire, the metal plate 1D or 1E is bonded or spot welded to the tire rim. With such an attachment method, the transponder 1 can be easily attached to an existing tire, and the electrical grounding state of the transponder 1 is improved. Furthermore, there is no risk of occurrence of conventional tire peeling failure, etc., and there is no need to include the environmental conditions at the time of tire manufacture in the durability of the transponder, and the occurrence of failure of the transponder itself is greatly reduced compared to the conventional case. The

  Further, since the transponder body 1A sandwiched between the metal plates 1D and 1E is protected by the metal plates 1F and 1G, the occurrence of failure can be further reduced, and the metal plates 1F and 1G are connected to the transponder body as an antenna. As a result, the length of the antenna can be increased and the antenna can be routed around the entire inner circumference of the tire. As a result, the transponder 1 can be accessed from any location outside the tire.

  The above-described embodiment is an example, and the present invention is not limited to this.

1 is an external view showing a tire mounting transponder in a first reference example of the present invention. The block diagram of the electric circuit which shows the transponder main body in the 1st reference example of this invention 1 is a block diagram of an electric circuit showing a scanner according to a transponder of the present invention. 1 is an external view showing a scanner according to a transponder of the present invention. The figure explaining the tire mounting example of the transponder of this invention The figure explaining the management system using the transponder of this invention The figure explaining the management system using the transponder of this invention The block diagram which shows the transponder of the 2nd reference example of this invention The block diagram which shows the transponder of the 3rd reference example of this invention The disassembled perspective view which shows the transponder of the Example of this invention Side surface sectional drawing which shows the transponder of the Example of this invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Transponder, 1A ... Transponder main body, 1B ... Adhesion part, 1C ... Adhesion part, 1D-1G ... Metal plate, 11 ... Reception antenna, 12 ... Rectifier circuit, 13 ... Central processing part, 14 ... Memory | storage part, 15 ... Oscillating unit, 16 ... transmitting antenna, 2 ... scanner, 2A ... housing, 2B ... grip, 21 ... receiving antenna, 22 ... receiving unit, 23 ... central processing unit, 24 ... keyboard, 25 ... display unit, 26 ... Transmitter 27, antenna for transmission, 28 power supply unit, 3 tire, 31 wall surface of tire, 32 rim, 33 core, 41 data processor, 42 controller 43a, 43b antenna 44 ... management terminal, 45 ... processing device, 46 ... display unit, 47 ... in-vehicle antenna, 5 ... vehicle.

Claims (3)

In the tire mounting transponder that sends and receives information by a predetermined signal,
A transponder for mounting a tire, characterized in that a transponder body is sandwiched between two strip-shaped metal mounting plates having a predetermined thickness. The tire mounting transponder according to claim 1, wherein a buffer plate for protecting the transponder body is provided between the two metal mounting plates. 3. The tire mounting according to claim 2, wherein the buffer plate is made of a metal plate insulated from the two strip-shaped metal mounting plates, and the metal plate is connected to the transponder body as an antenna. transponder.

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