Abstract: A tire can include a first magnetic body disposed at a predetermined position in a tread portion, a magnetic sensor disposed radially inward of the first magnetic body, and a second magnetic body disposed closer to the magnetic sensor than the first magnetic body is. At a position where the magnetic sensor is disposed, a direction of a magnetic force line emitted by the first magnetic body and a direction of a magnetic force line emitted by the second magnetic body can be different from each other.

Abstract: A puncture repair kit that reduces the difference between a pressure displayed on a manometer of a compressor device and an actual tire internal pressure. The compressor device (2) is connected with a bottle unit (3) directly. A cap 6 comprises a one-way valve (14) to prevent puncture-sealing agent from flowing back toward the compressor device. A cylinder (12) of the compressor device (2) comprises a branch chamber (21) receiving compressed air from a pump chamber (11). The branch chamber (21) is connected with an air feeding passage (39) extending toward a bottle unit (3), a manometer (22), a relief valve (23), and a surge chamber (70) to store the compressed air from the pump chamber (11) and to reduce the pressure fluctuation of the compressed air.

Abstract: Disclosed is a cap unit wherein safety is increased by preventing a reversed flow of a puncture-sealing agent. A cap main body (33) comprises an air flow passage (31) consisting of a vertical flow passage (31A) extending downward from an air passage upper opening (31a), a lateral flow passage (31B) laterally extending from an air intake port (31b), and a connecting flow passage (31C) connecting therebetween. The air flow passage (31) is provided with a reversed flow preventing device (22). The cap main body (33) is provided with a vertical hole (40) consisting of first to fourth vertical holes (40A to 40D) which have inner diameters increasing downwardly from the upper end in a stepwise manner, and the first to third vertical holes (40A to 40C) form the vertical flow passage (31A).

Abstract: A cap unit is provided with: a cap body having a first flow channel for feeding the compressed air from a compressor into a bottle container, and a second flow channel for sequentially taking out a puncture repair agent and the compressed air from the bottle container; and a first and second inner lids which are independent from one another and which close the first and second flow channels. The cap body has a boss portion extending upward from the bottom surface of a mouth portion securing recess, and provided with a first inner lid securing portion. The first inner lid is fitted into the first inner lid securing portion The upper opening portion of the first flow channel opens further inward than the first inner lid securing portion, and the upper opening portion of the second flow channel opens further outward than the first inner lid securing portion.

Abstract: A cap unit is provided with: a cap body having a first flow channel for feeding the compressed air from a compressor into a bottle container, and a second flow channel for sequentially taking out a puncture repair agent and the compressed air from the bottle container; and a first and second inner lids which are independent from one another and which close the first and second flow channels. The cap body has a boss portion extending upward from the bottom surface of a mouth portion securing recess, and provided with a first inner lid securing portion. The first inner lid is fitted into the first inner lid securing portion The upper opening portion of the first flow channel opens further inward than the first inner lid securing portion, and the upper opening portion of the second flow channel opens further outward than the first inner lid securing portion.

Abstract: A puncture repair kit that reduces the difference between a pressure displayed on a manometer of a compressor device and an actual tire internal pressure. The compressor device (2) is connected with a bottle unit (3) directly. A cap 6 comprises a one-way valve (14) to prevent puncture-sealing agent from flowing back toward the compressor device. A cylinder (12) of the compressor device (2) comprises a branch chamber (21) receiving compressed air from a pump chamber (11). The branch chamber (21) is connected with an air feeding passage (39) extending toward a bottle unit (3), a manometer (22), a relief valve (23), and a surge chamber (70) to store the compressed air from the pump chamber (11) and to reduce the pressure fluctuation of the compressed air.

Abstract: Disclosed is a cap unit wherein safety is increased by preventing a reversed flow of a puncture-sealing agent. A cap main body (33) comprises an air flow passage (31) consisting of a vertical flow passage (31A) extending downward from an air passage upper opening (31a), a lateral flow passage (31B) laterally extending from an air intake port (31b), and a connecting flow passage (31C) connecting therebetween. The air flow passage (31) is provided with a reversed flow preventing device (22). The cap main body (33) is provided with a vertical hole (40) consisting of first to fourth vertical holes (40A to 40D) which have inner diameters increasing downwardly from the upper end in a stepwise manner, and the first to third vertical holes (40A to 40C) form the vertical flow passage (31A).

Abstract: A vehicle estimate navigation apparatus including: a speed vector calculation means for calculating, based on GPS information by a GPS receiver mounted in a running vehicle, a speed vector of a running speed of the vehicle; a tire rotation information detection means for detecting rotation information of tires attached to the vehicle; a tire rotation speed calculation means for calculating rotation speeds of the tires based on tire rotation information obtained by the tire rotation information detection means; a speed calculation means for calculating a vehicle speed based on the speed vector information; a yaw rate calculation means for calculating a vehicle yaw rate based on the speed vector information; a first parameter calculation means for calculating a first parameter of a first relational expression between the vehicle speed calculated by the speed calculation means and the tire rotation speed, the vehicle speed being obtained based on a formula model for calculating a tire ground speed based on the t

Abstract: Deadhesion of an IC tag inlet during vulcanization molding of tire is suppressed, while preventing adhesion of a portion other than a sticking out portion. An IC tag comprises a sheet-like IC tag inlet 2, a protective cover 3 of an unvulcanized rubber sheet adhered to the surface Sf of the inlet 2 through a primer layer 10 and an adhesive layer 11, and an antiadhesive layer 4 formed on the rear surface Sr of the inlet 2, wherein a maximum value Ga?max of storage shear modulus Ga? of a rubber of the protective cover 3 at a temperature of 150 to 200° C. and a storage shear modulus Gb?0 of the primer layer 10 at a temperature T0 showing the maximum value Ga?max satisfy the following equation: Ga?max×10?2<Gb?0.

Abstract: A vehicle estimate navigation apparatus including: a speed vector calculation means for calculating, based on GPS information by a GPS receiver mounted in a running vehicle, a speed vector of a running speed of the vehicle; a tire rotation information detection means for detecting rotation information of tires attached to the vehicle; a tire rotation speed calculation means for calculating rotation speeds of the tires based on tire rotation information obtained by the tire rotation information detection means; a speed calculation means for calculating a vehicle speed based on the speed vector information; a yaw rate calculation means for calculating a vehicle yaw rate based on the speed vector information; a first parameter calculation means for calculating a first parameter of a first relational expression between the vehicle speed calculated by the speed calculation means and the tire rotation speed, the vehicle speed being obtained based on a formula model for calculating a tire ground speed based on the t

Abstract: Provided is a method which is free from falling into a state impossible for detecting inner pressure lowering of tires even when GPS signals cannot be received and capable of precisely detecting inner pressure lowering of tires. A method for alarming inner pressure lowering of tires comprising a step of receiving satellite electric wave utilized for GPS and then detecting inner pressure lowering of tires utilizing the information of the satellite electric wave, and a step of detecting inner pressure lowering of tires utilizing wheel speed information, wherein said method comprises a step of judging whether the judgment result of inner pressure lowering of tires detected in the respective steps is adopted or not.

Abstract: Deadhesion of an IC tag inlet during vulcanization molding of tire is suppressed, while preventing adhesion of a portion other than a sticking out portion. An IC tag comprises a sheet-like IC tag inlet 2, a protective cover 3 of an unvulcanized rubber sheet adhered to the surface Sf of the inlet 2 through a primer layer 10 and an adhesive layer 11, and an antiadhesive layer 4 formed on the rear surface Sr of the inlet 2, wherein a maximum value Ga?max of storage shear modulus Ga? of a rubber of the protective cover 3 at a temperature of 150 to 200° C. and a storage shear modulus Gb?0 of the primer layer 10 at a temperature T0 showing the maximum value Ga?max satisfy the following equation: Ga?max×10?2<Gb?0.

Abstract: The present invention provides a method for attaching an IC tag. In the method, an IC tag performing wireless communication using an electronic component appropriately disposed is attached to an article made from an elastically deformable material. Specifically, the IC tag is attached to a predetermined portion of the article, exclusive of a disposition section where the electronic component is disposed. The invention provides (i) an IC tag which is not damaged even when attached to an article made from an elastically deformable material, such as a tire used under extreme environment, (ii) a method for attaching the IC tag, and (iii) an article with the IC tag attached.

Abstract: Provided is a method for detecting decrease in an inner pressure of a tire with excellent accuracy by calculating accurate dynamic load radii by comparing the GPS speed information with tire rotational speed information collecting data only when a stable measurement of the dynamic load radii is possible, as well as by utilizing GPS positioning information for a running state of a vehicle, and an apparatus and a program thereof.

Abstract: A judgment method of road surface condition includes steps of: periodically detecting the wheel rotational speeds of the four wheel tires of a vehicle, memorizing the wheel rotational speed of each of tires, determining a slip ratio from said wheel rotational speeds, determining the acceleration or deceleration of the vehicle, determining a relation equation between said slip ratio and the acceleration or deceleration of the vehicle, determining a judgment value for judging a friction coefficient between the road surface and tires based on the slope of said relation equation determined, and setting a threshold which is used for judging the friction coefficient from the judgment value using the information of wireless tags which were buried in the tires.

Abstract: A pneumatic tire (1) has a tire cavity surface (HS) to which an accommodation tool (11) for accommodating an electronic component is bonded. The accommodation tool (11) includes an accommodation space (10) for accommodating an electronic component (W) therein, and includes a bonding region (11Sb) which is bonded to the tire cavity surface (HS) and which is provided on one end of a back surface (11S) directed to the tire cavity surface (HS). Only the bonding region (11Sb) is bonded to the tire cavity surface (HS), thereby making it possible to separate a portion of a non-bonding region (11Sa) on the side of the other end of the back surface (11S) from the tire cavity surface (HS).

Abstract: A magnetic bias film 9 includes a magnetic bias magnet 11 that has magnetic layers and generates a magnetic field within a plane perpendicular to a lamination direction of the magnetic layers, which is manufactured in the shape of substantially a rectangular prism having a long side, a short side, and a thickness (in the lamination direction) in order of decreasing lengths. A ratio of the long side with respect to the short side of the magnetic bias magnet 11 in length is in a range of 5 to 200.

Abstract: A method, apparatus and program for judging road surface conditions on which a vehicle is running. The method, apparatus and program includes the steps of: obtaining wheel speed rotational information of driving wheels of the vehicle during running from wheel speed detectors, receiving GPS radio waves to calculate positional information, and judging road surface conditions during running on the basis of a relationship between the wheel speed rotational information and the positional information. Conditions of road surfaces on which a vehicle is running can be accurately judged.

Abstract: The present invention provides a method for attaching an IC tag. In the method, an IC tag performing wireless communication using an electronic component appropriately disposed is attached to an article made from an elastically deformable material. Specifically, the IC tag is attached to a predetermined portion of the article, exclusive of a disposition section where the electronic component is disposed. The invention provides (i) an IC tag which is not damaged even when attached to an article made from an elastically deformable material, such as a tire used under extreme environment, (ii) a method for attaching the IC tag, and (iii) an article with the IC tag attached.

Abstract: Provided is a method which is free from falling into a state impossible for detecting inner pressure lowering of tires even when GPS signals cannot be received and capable of precisely detecting inner pressure lowering of tires. A method for alarming inner pressure lowering of tires comprising a step of receiving satellite electric wave utilized for GPS and then detecting inner pressure lowering of tires utilizing the information of the satellite electric wave, and a step of detecting inner pressure lowering of tires utilizing wheel speed information, wherein said method comprises a step of judging whether the judgment result of inner pressure lowering of tires detected in the respective steps is adopted or not.