JP2015044431A - Tire information monitoring device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tire information monitoring device which can attach tire identification information to a tire by a simple method.SOLUTION: A tire information monitoring device comprises: a first part including a sensor; an IC for storing tire identification information; and a second part including an information input unit for receiving input of tire identification information. The information input unit is exposed outside of the second part. This structure enables a user to input tire identification information to the information input unit browsable from the outside, and also to verify information such as air pressure of a tire corresponding to the tire identification information.

Description

  The present invention relates to a tire information monitoring apparatus having a sensor that detects information related to a tire.

  As a conventional tire information monitoring device, for example, there is a device described in Patent Literature 1-5. Patent documents 1-5 are common in that the air pressure sensor attached to the tire monitors whether or not the air pressure of the tire has decreased. More specifically, Patent Document 1 compares the tire identification ID recorded in the receiving unit with the tire identification ID and tire pressure information sent from the transmitter to determine which tire pressure is reduced. The technology to confirm is disclosed. Patent Documents 3-5 disclose a technique for outputting tire air pressure information to a display unit provided in each tire.

JP 2000-233615 A JP 2006-015925 A JP 2006-232127 A JP 2010-230281 A JP 2010-241221 A

  However, in Patent Documents 1-5, for example, when a tire whose tire identification information is registered as a front left wheel is re-registered and used as a front right wheel, or a tire whose tire identification information is registered as a front left wheel. Instead, a technique for providing tire identification information to a tire by a simple method when using a spare tire is not disclosed. Therefore, in these situations, there is a problem that it is difficult to give tire identification information to the tire by a simple method.

  Then, an object of this invention is to provide the tire information monitoring apparatus which can provide tire identification information to a tire by a simple method.

  The tire information monitoring device of the present invention has a first part having a sensor, an IC storing a tire identification ID, and a second part having an information input unit capable of inputting tire identification information, The information input unit is exposed to the outside of the second part.

  According to the tire information monitoring device of the present invention, tire identification information can be given to a tire by a simple method.

Schematic top view of vehicle body and enlarged perspective view of tire Schematic cross section of tire information monitoring device Schematic diagram of the information input unit when the tire information monitoring device is viewed from above Bottom view of the second part of the tire information monitoring device Bottom view of second substrate in first part of tire information monitoring device

  Hereinafter, a tire information monitoring apparatus according to an embodiment of the present invention will be described with reference to FIGS. In FIG. 1 to FIG. 5, the reference numerals for the same parts are omitted, and the description thereof may be omitted as appropriate. Moreover, FIGS. 1-5 shows an example of a preferable form, and are not necessarily limited to each shape.

<Embodiment>
FIG. 1A is a schematic top view of the vehicle body 1 and is described as indicating the front side of the vehicle body on the upper side of the paper and the rear side of the vehicle body on the lower side of the paper surface. As shown in FIG. 1 (a), the vehicle body 1 has four tires 2 at front left, front right, rear left, and rear right positions. FIG. 1B is an enlarged perspective view of the tire 2, and a tire information monitoring device 4 having a valve core 3 inside and capable of injecting air is attached to the tire 2.

  FIG. 2A shows a schematic cross-sectional view of the tire information monitoring device 4. As shown in FIG. 2A, the tire information monitoring device 4 is preferably provided on a rim 5 that is a part of the frame of the tire 2. The tire information monitoring device 4 has a first part 6 located inside the rim (inside the rubber part of the tire) and a second part 7 located outside the rim (outside the rubber part of the tire). doing. The valve core 3 is surrounded by the first part 6 and the second part 7.

  FIGS. 2B to 2D are diagrams illustrating the tire information monitoring device 4 in detail. Specifically, FIG. 2B corresponds to the second portion 7 of the tire information monitoring device 4, FIG. 2C corresponds to the valve core 3 surrounded by the tire information monitoring device 4, and FIG. ) Corresponds to the first part 6 of the tire information monitoring device 4.

  As shown in FIGS. 2B to 2D, the first portion 6 has a sensor 8. The sensor 8 is preferably an air pressure sensor, but may be another sensor such as an acceleration sensor, an angular velocity sensor, a temperature sensor, or a composite sensor thereof. Moreover, the 2nd site | part 7 has IC9 which memorize | stored tire identification ID. The second part 7 has an information input unit 11 through which the tire identification information 10 can be input. The information input unit 11 is exposed outside the second portion 7. With this configuration, it is possible to input tire identification information to the information input unit 11 that can be viewed from the outside, and to know information related to the tire pressure and the like corresponding to the tire identification information. Further, it is preferable that the information input unit 11 and the IC are electrically connected.

  Here, it is preferable that the tire identification information and the tire identification ID have a correspondence relationship. The information input unit 11 is preferably capable of inputting tire identification information that can identify that the tire is located at any of the front right, front left, rear right, and rear left positions. For example, the tire identification information “FL” corresponding to the tire position “front left” corresponds to the tire identification ID “ID: FL”, and the tire identification information “FR” corresponding to the tire position “front right”. And tire identification ID “ID: FR”, tire identification information “RL” corresponding to tire position “rear left” and tire identification ID “ID: RL” correspond, and tire position “ It is preferable that the tire identification information “RR” corresponding to “rear right” corresponds to the tire identification ID “ID: RR”. As described above, since the tire identification information and the tire identification ID have a correspondence relationship, information related to the tire air pressure associated with the tire identification ID corresponding to the tire identification information is transmitted together with the tire identification ID. This is because it can be transmitted by a machine. Thereby, it is possible to easily change the tire identification information when the tire position is changed by tire rotation or the like.

  In addition, the information input unit 11 can input not only tire identification information that can identify that the tire is located at any one of the front right, front left, rear right, and rear left, but also, for example, the tire It is preferable that tire identification information capable of identifying a spare tire or a studless tire can be input. This is because the tire identification information can be easily changed even when the tire is replaced, such as using a spare tire or changing to a studless tire due to seasonal changes. Further, when the vehicle body 1 or a garage storing the vehicle body 1 has spare tires or studless tires, it is also possible to know information on their air pressure and the like.

  Moreover, it is preferable that input information for turning off the power can be input to the information input unit 11. When the vehicle body 1 is not used for a long period of time, turning off the tire information monitoring device 4 contributes to energy saving.

  Further, by transmitting the tire information detected by the sensor 8 (for example, tire information related to air pressure) and the tire identification ID to the receiver of the vehicle body 1, the tire information corresponding to the tire position (the tire information) is transmitted. It is preferable that the information regarding the air pressure and the like can be recognized. In addition, it is good also as a structure which provides the information display part which displays the information regarding the tire pressure etc. in the 2nd site | part 7 in the tire information monitoring apparatus 4. FIG. With this configuration, for example, it is possible to easily confirm whether or not the air pressure is reduced by simply confirming the information display unit when the vehicle body 1 is stopped. However, in order to be able to recognize in real time information related to tire air pressure and the like during traveling, it is preferable that information related to tire air pressure and the like can be transmitted to the receiver of the vehicle body 1 and managed collectively.

  As shown in FIG. 2B, the second portion 7 has a first substrate 12, an information input unit 11 is disposed on the surface side of the first substrate 12, and the first substrate 12 It is preferable that the IC 9 is disposed on the back surface side of 12. Note that the IC 9 may be disposed on the surface side of the first substrate 12. Further, the IC 9 may be provided in the first part 6. However, considering the electrical connection with the sensor 8 mounted on the first part 6, it is preferable that the IC 9 is disposed on the side facing the sensor 8, and in that sense, the IC 9 is the first substrate. 12 is preferably disposed on the back side.

  Further, as shown in FIGS. 2B and 2D, the first part 6 has a first wiring 13, the second part 7 has a second wiring 14, It is preferable that the first wiring 13 and the second wiring 14 are electrically connected through the connection portion 20 by connecting the part 6 and the second part 7. For this purpose, as shown in FIG. 2D, it is preferable that the first wiring 13 has a connection portion 20 that protrudes from the first portion 6 toward the second portion 7. Even if a misalignment occurs when the first part 6 and the second part 7 are connected and a gap is generated, electrical connection between the first wiring 13 and the second wiring 14 can be ensured. Because. In that sense, the second wiring 14 may have a connection portion 20 that protrudes from the second portion 7 toward the first portion 6. In addition, the connection part 20 of the 1st wiring and the 2nd wiring in the connection location of the 1st site | part 6 and the 2nd site | part 7 becomes a structure as shown in FIG.

  In addition, as shown in FIG. 2B, the second portion 7 preferably has a battery 15. Moreover, it is preferable that the 2nd site | part 7 has an opening part from which the battery 15 can be taken out. This is because the battery can be easily replaced. The battery may be installed in the first part 6. In addition, the battery 15 can ensure electric power for the IC 9, the information input unit 11, and the like by being electrically connected to the first substrate 12 through the conductive wire 21.

  Further, as shown in FIG. 2 (d), the first part 6 preferably has a transmitter 16. The first part 6 has a second substrate 17, and the sensor 8 and the transmitter 16 are preferably mounted on the second substrate 17. As long as the IC 9 and the sensor 8 are electrically connected to the transmitter 16, the transmitter 16 may be mounted on the second portion 7. However, the transmitter 16 is more advantageous for miniaturization because of the space problem. Further, the transmitter 16 is preferably arranged at the position of the sensor 8 and the point object with respect to the central axis of the second portion 7 when viewed in plan (see FIG. 5).

  Further, as shown in FIG. 3A, the information input unit 11 has tire identification information 10, and the information input unit 11 can specify a tire position by matching a dial 18 to the tire identification information 10. Preferably it can be done. For example, as shown in FIG. 3A, tire identification information 10 such as FR, RR, FL, and RL is described in the information input unit 11, and the dial 18 is connected to the tire identification information 10 (FR, RR, FL, The tire position can be specified by adjusting to (RL). In addition, for example, as shown in FIG. 3B, tire identification information 10 such as FR, RR, FL, and RL is prepared on the touch panel of the display functioning as the information input unit 11, and the tire is touched with a finger. A configuration in which the tire position can be specified by touching the identification information 10 is conceivable. However, in view of simplicity and cost, it is preferable to use a configuration in which the tire position can be specified using the dial 18 as shown in FIG. In addition, the format of the information input with respect to the information input part 11 is not limited to the above, You may be another structure. For example, a configuration is conceivable in which the tire position can be specified by directly entering tire identification information such as FR, RR, FL, RL on a display functioning as an information input unit (not shown).

  Further, as shown in FIGS. 2B to 2D, the first portion 6 and the second portion 7 are screwed and caulked with the first connection portion 22 and the second connection portion 23. It is preferable to connect by such a method. Moreover, it is preferable to connect the 3rd connection part 24 and the 4th connection part 25 to the 1st site | part 6 and the valve core 3 by methods, such as screwing and caulking. The first sealing member 26 of the valve core 3 is preferably made of a material having a large friction coefficient such as rubber in order to improve the adhesion with the first portion 6. This is because it is necessary to prevent the air in the tire from leaking out of the tire by maintaining the adhesion.

  Further, as shown in FIG. 2 (d), it is preferable that air in the tire is introduced into the sensor 8 through the air introduction hole 19.

  In order to secure the airtightness between the first portion 6 and the rim 5, the second sealing member 27 was formed as a grommet around the first wiring 13.

  Further, when an air pressure sensor is considered as an example of the sensor, for example, a MEMS air pressure sensor in which a diaphragm is formed on a silicon substrate can be used. By reading the deformation of the diaphragm due to the air pressure in the tire as an electrical signal, it is possible to extract the tire air pressure. When considering other sensors, for example, a MEMS sensor having a silicon substrate can be used.

  The sensor may be formed integrally with an IC that stores the tire identification ID. The sensor may be formed integrally with a plurality of sensors such as an air pressure sensor, an acceleration sensor, and a temperature sensor. For example, a first sensor such as an air pressure sensor may be provided in a first region of the same silicon substrate, and a second sensor such as a temperature sensor may be provided in the second region.

  In addition, when the air pressure sensor is used as the sensor, the tire pressure information is used. When the acceleration sensor is used as the sensor, the tire acceleration information is used. When the temperature sensor is used as the sensor, the tire temperature is used. The tire information monitoring apparatus according to the present invention can know the information.

  According to the tire information monitoring apparatus of the present invention, tire identification information can be given to a tire by a simple method.

DESCRIPTION OF SYMBOLS 1 Car body 2 Tire 3 Valve core 4 Tire information monitoring apparatus 5 Rim 6 1st site | part 7 2nd site | part 8 Sensor 9 IC
DESCRIPTION OF SYMBOLS 10 Tire identification information 11 Information input part 12 1st board | substrate 13 1st wiring 14 2nd wiring 15 Battery 16 Transmitter 17 2nd board | substrate 18 Dial 19 Air introduction hole 20 Connection part 21 Conductor 22 1st connection part 23 2nd connection part 24 3rd connection part 25 4th connection part 26 1st sealing member 27 2nd sealing member

Claims (13)

A first portion having a sensor;
An IC that stores the tire identification ID and a second part that has an information input unit that can input the tire identification information;
The tire information monitoring device, wherein the information input unit is exposed to the outside of the second part. The tire information monitoring apparatus according to claim 1, wherein the information input unit and the IC are electrically connected. The second part has a first substrate;
The information input unit is disposed on a surface side of the first substrate;
The tire information monitoring apparatus according to claim 1, wherein the IC is disposed on a back side of the first substrate. The tire information corresponding to the position of the tire can be recognized by transmitting the tire information detected by the sensor and the tire identification ID corresponding to the tire identification information to a receiver included in a vehicle body. Item 4. The tire information monitoring device according to any one of Items 1 to 3. The tire information monitoring device according to any one of claims 1 to 4, wherein the first portion is attached so as to be positioned inside a rubber portion of the tire. 6. Tire identification information that can identify that a tire is located at any of the front right, front left, rear right, and rear left positions is input to the information input unit. The tire information monitoring device according to any one of the above. The tire information monitoring device according to any one of claims 1 to 6, wherein input information for turning off a power supply can be input to the information input unit. The first part has a first wiring;
The second part has a second wiring;
The said 1st wiring and the said 2nd wiring are electrically connected by connecting the said 1st site | part and the said 2nd site | part, The any one of Claims 1-7 characterized by the above-mentioned. The tire information monitoring device according to one. The tire information monitoring apparatus according to any one of claims 1 to 8, wherein the second part includes a battery. The tire information monitoring apparatus according to claim 9, wherein the second portion has an opening through which the battery can be taken out. The first part has a transmitter;
The first part has a second substrate;
The tire information monitoring apparatus according to claim 1, wherein the sensor and the transmitter are mounted on the second substrate. The tire information monitoring device according to any one of claims 1 to 11, wherein tire information that can be identified as a spare tire or a studless tire can be input to the information input unit. The information input unit has the tire identification information,
The tire information monitoring device according to any one of claims 1 to 12, wherein the information input unit can specify a tire position by matching a dial with the tire identification information.

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