Storage body with functional component and tire

Abstract

To provide a storage body with a functional component and a tire which improve durability of a functional component while enhancing adhesive force of a storage body to a tire inner surface, and enhances sensing accuracy of the functional component and can improve measurement performance of tire information.SOLUTION: A storage body with a functional component includes a functional component 20 having a sensor function of detecting tire information, and a storage body 10 where the functional component 20 is stored, wherein the storage body 10 has a base part 11 provided with at least one through hole B, a storage part 13 for storing the functional component 20, and an opening 14 which communicates with the storage part 13 and takes the functional component 20 in and out, a rear face 11y of the base part 11 is fixed to a tire inner surface by an adhesive X, and modulus M50X [MPa] in 50% elongation of the adhesive X and a modulus M50A [MPa] in 50% elongation of the material A constituting the storage body 10 satisfy a relation of 0.01≤M50X / M50A<1.00.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a container with functional parts and a tire, and more particularly to a container with functional parts and a tire that can increase the adhesive strength of the container to the inner surface of the tire while improving the durability of the functional parts and increasing the sensing accuracy of the functional parts, thereby improving the measurement performance of tire information. [Background technology]

[0002] In order to acquire tire information, functional components (e.g., a sensor unit including a sensor) are installed on the inner surface of a tire (see, for example, Patent Documents 1 and 2). When a container that houses such functional components is attached to the inner surface of the tire, the container can be fixed to the inner surface of the tire using an adhesive or the like to prevent the container from falling off. However, when attaching the container to the inner surface of the tire, air bubbles may get trapped and remain on the adhesive surface, which can cause the container to fall off while the tire is running or cause sensing problems.

[0003] Furthermore, functional components are used to detect tire information such as temperature and internal pressure, as well as impact force and acceleration received from the road surface while the tire is running. However, tire information such as physical quantities observed due to deformation of the tire tread is significantly affected by the physical properties (e.g., hardness) of the area around the functional component. Therefore, depending on the installation position of the functional component, it may not be possible to ensure sufficient sensing accuracy of the functional component. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 6272225 [Patent Document 2] Special Publication No. 2016-505438 Summary of the Invention [Problem to be solved by the invention]

[0005] The object of the present invention is to provide a container with functional parts and a tire that can increase the adhesive strength of the container to the inner surface of the tire while improving the durability of the functional parts and increasing the sensing accuracy of the functional parts to improve the measurement performance of tire information. [Means for solving the problem]

[0006] In order to achieve the above object, the functional part-equipped container of the present invention includes a functional part having a sensor function for detecting tire information and a container in which the functional part is accommodated, the container having a base with at least one through hole, a container section for accommodating the functional part, and an opening communicating with the container section for inserting and removing the functional part, the back surface of the base being fixed to the inner surface of the tire with adhesive X, and the modulus M of the adhesive X at 50% elongation being 50X [MPa] and the modulus M of material A constituting the container at 50% elongation 50A [MPa] and 0.01≦M 50X / M 50A <1.00.

[0007] The tire of the present invention is characterized in that the functional component-equipped container is fixed to the inner surface of the tire. [Effects of the Invention]

[0008] In the present invention, the container has a base with at least one through-hole, a container for accommodating a functional component, and an opening communicating with the container for inserting and removing the functional component. When the container is attached to the tire inner surface, the back surface of the base is fixed to the tire inner surface with adhesive X. However, air bubbles trapped between the tire inner surface and the back surface (adhesive surface) of the base are expelled through the through-holes, so that the tire inner surface and the back surface of the base are tightly adhered to each other, ensuring sufficient adhesion. This allows the container to be firmly adhered to the tire inner surface, preventing the container from peeling off (falling off) during driving. Furthermore, in the present invention, the modulus M of adhesive X at 50% elongation is 50X and the modulus M of material A at 50% elongation 50A 0.01≦M 50X / M 50A <1.00. In other words, by setting the modulus of adhesive X relatively low, excessive impact from the road surface when the tire touches the ground is less likely to be transmitted to the functional components, making it possible to accurately detect changes in physical quantities caused by deformation of the tire tread. This increases the sensing accuracy of the functional components, improving their tire information measurement performance and improving their durability. Sensing accuracy refers to the ability to accurately detect changes in physical quantities caused by deformation of the tread. Improved sensing accuracy reduces the coefficient of variation CV of the peak-to-peak value of the output waveform, making it possible to accurately grasp changes in physical quantities caused by deformation of the tire tread.

[0009] In the present invention, it is preferable that the through-holes include through-holes arranged in the bottom surface of the storage part. Because the back side of the storage part is an area where air bubbles tend to remain, providing through-holes in the bottom surface of the storage part can sufficiently achieve the effect of discharging air bubbles.

[0010] The total area of ​​the through holes S relative to the area S of the back surface of the base B The ratio is preferably in the range of 1.0% to 25.0%. By appropriately setting the size of the through holes in this way, it is possible to obtain a sufficient effect of discharging air bubbles without reducing the adhesive strength or rigidity of the container.

[0011] It is preferable that the bottom surface of the housing portion has an uneven region consisting of convex portions and concave portions, the height difference dH between the convex portions and the concave portions is in the range of 0.1 mm to 2.0 mm, and the through-hole is arranged in the concave portion. Setting the height difference dH of the uneven region appropriately in this way is favorable from the viewpoint of the housing capacity and moldability of the functional component.

[0012] It is preferable that the recessed portion has an adhesive filling region made of adhesive X, and that the height of this adhesive filling region relative to the recessed portion is equal to or less than the height of the protrusion relative to the recessed portion. By appropriately setting the height of the adhesive filling region in this way, it is possible to improve the durability of the functional component while ensuring input to the functional component.

[0013] The recess has an adhesive filling area made of adhesive X, and the projected area S of the bottom of the storage section A The projected area of ​​the adhesive filling area S B1 The ratio is preferably in the range of 30% to 70%, which makes it possible to improve the sensing accuracy of the functional parts while maintaining the durability of the functional parts.

[0014] In the present invention, it is preferable that the container is fixed to the back surface of the tread portion of the tire and that the functional part is contained in the container. It is preferable that the container is made of one or more types of vulcanized rubber. Even when such a container is used, the above-mentioned excellent effects can be obtained.

[0015] Furthermore, it is preferable that the functional part has a sensor function using a piezoelectric element as a sensor element. When a functional part having a sensor function using such a piezoelectric element is used, a remarkable effect can be obtained.

[0016] The tire of the present invention is preferably a pneumatic tire, but may also be a non-pneumatic tire. In the case of a pneumatic tire, the interior thereof can be filled with air, an inert gas such as nitrogen, or other gases.

[0017] In the present invention, the modulus M at 50% elongation 50is the tensile stress at 50% elongation measured in accordance with JIS K6251. [Brief explanation of the drawings]

[0018] [Figure 1] 1 is a perspective view showing an example of a functional component-equipped container according to an embodiment of the present invention; [Figure 2] 2 is a perspective view showing the interior of the functional component-equipped container of FIG. 1, with a portion thereof cut away. FIG. [Figure 3] 2 is a plan view showing the functional component-equipped container of FIG. 1; FIG. [Figure 4] FIG. 4 is a cross-sectional view taken along the line IV-IV in FIG. 3. [Figure 5] 10(a) to 10(c) are explanatory views showing modified examples of a functional component-equipped container according to an embodiment of the present invention. [Figure 6] 10(a) and 10(b) are explanatory diagrams illustrating a method for forming an adhesive filling region. [Figure 7] 10(a) to 10(c) are explanatory views showing another modified example of a functional component-equipped container according to an embodiment of the present invention. [Figure 8] 10(a) to 10(d) are perspective views showing other modified examples of the functional component-equipped container according to the embodiment of the present invention, with a portion of the container cut away to show the interior of the container. [Figure 9] 1 is a meridian cross-sectional view showing an example of a pneumatic tire according to an embodiment of the present invention. [Figure 10] FIG. 4 is a diagram showing an example of an output waveform from a piezoelectric element. [Figure 11] FIG. 10 is a perspective view showing a conventional functional component-equipped container with a portion cut away. DETAILED DESCRIPTION OF THE INVENTION

[0019] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the accompanying drawings, in which: Figures 1 to 4 show a functional component-equipped container according to an embodiment of the present invention.

[0020] As shown in FIGS. 1 to 4, the functional component 20 is housed inside a housing body 10. The housing body 10 has a flat base 11 fixed to the inner surface of the tire, a cylindrical side wall 12 protruding from the base 11, a housing section 13 formed by the base 11 and the side wall 12, and an opening 14 communicating with the housing section 13 and for inserting and removing the functional component 20. The housing body 10 may be a molded body made of one type of vulcanized rubber, or may be a molded body made of multiple types of vulcanized rubber. The housing section 13 is the internal region of the housing body 10 excluding the thickness of the opening 14.

[0021] The base 11 is provided with at least one through hole B penetrating through its thickness direction. In FIG. 2 , the through holes B include a through hole B1 provided on the inside of the housing body 10 and a through hole B2 provided on the outside of the housing body 10. Furthermore, an adhesive filling region made of adhesive X is formed in the through hole B of the base 11. Specifically, when the housing body 10 is attached to the tire inner surface, the back surface 11y of the base 11 is fixed to the tire inner surface with the adhesive X. At this time, the adhesive X is filled into the through hole B of the base 11, and the adhesive X hardens inside the through hole B, and then an adhesive filling region is formed. This adhesive filling region includes both a case where the inside of the through hole B is completely filled with adhesive X and a case where the inside of the through hole B is not completely filled with adhesive X. Note that hereinafter, when the term "adhesive filling region" is used, it refers to the adhesive filling region of the through hole B1 of the through holes B1 and B2.

[0022] In such a container 10, the modulus M of the adhesive X at 50% elongation is 50X [MPa] and the modulus M of the material A constituting the container 10 at 50% elongation 50A [MPa] means 0.01≦M 50X / M 50A <1.00. That is, in the present invention, the modulus M of adhesive X satisfies the relationship 50X is set relatively low so that adhesive X is softer than material A.

[0023] The functional component 20 has a contact surface 21 that contacts the inner surface of the tire. That is, the contact surface 21 is the surface that contacts the bottom surface 13x of the housing 13. The functional component 20 also has a structure in which various electronic components are housed inside a housing 23. The electronic components can be configured to include various sensors, transmitters, receivers, control circuits, batteries, and the like for acquiring tire information. Tire information acquired by the sensors can include the internal temperature and pressure of the pneumatic tire, the amount of tread wear, and the like. For example, a temperature sensor or pressure sensor is used to measure the internal temperature and pressure. To detect the amount of tread wear of a tire, for example, a sensor element 22 made of a film-like piezoelectric element is disposed on the contact surface 21 of the functional component 20. The sensor element 22 detects an output voltage corresponding to tire deformation during driving, and the amount of tread wear is detected based on the output voltage. Alternatively, an acceleration sensor or magnetic sensor can be used. The sensor element 22 can be disposed on either the outer or inner surface of the housing 23.

[0024] The above-described functional component-equipped container has a base 11 provided with at least one through-hole B, a container section 13 for accommodating the functional component 20, and an opening 14 communicating with the container section 13 for inserting and removing the functional component 20. When the container 10 is attached to the tire inner surface, the back surface 11y of the base 11 is fixed to the tire inner surface with adhesive X. However, air bubbles trapped between the tire inner surface and the back surface 11y (adhesive surface) of the base 11 are expelled through the through-hole B, so that the tire inner surface and the back surface 11y of the base 11 are tightly adhered to each other, ensuring sufficient adhesion. This allows the container 10 to be firmly adhered to the tire inner surface, preventing the container 10 from peeling off (falling off) during running. In addition, the modulus M of the adhesive X at 50% elongation is 50X and the modulus M of material A at 50% elongation 50A 0.01≦M 50X / M 50A <1.00. That is, the modulus M of adhesive X is 50XBy setting this to a relatively low value, excessive impact received from the road surface when the tire touches the ground is less likely to be transmitted to the functional part 20, and it becomes possible to accurately detect changes in physical quantities caused by deformation of the tread portion of the tire. This increases the sensing accuracy of the functional part 20, improving the tire information measurement performance, and also improving the durability of the functional part 20.

[0025] In particular, it is preferable that the through-holes B include through-holes B1 arranged on bottom surface 13x of storage section 13. Because the back side of storage section 13 is an area where air bubbles are likely to remain, providing through-holes B1 on bottom surface 13x of storage section 13 can sufficiently achieve the effect of discharging air bubbles.

[0026] In the above-mentioned functional part-equipped container, the total area S of the through holes B relative to the area S of the back surface 11y of the base 11 is B The ratio S B / S×100% is preferably in the range of 1.0% to 25.0%, more preferably in the range of 2.0% to 15.0%, and most preferably in the range of 3.0% to 10.0%. The area S of the back surface 11y of the base 11 means the entire area of ​​the back surface 11y of the base 11 including the through-holes B, and the total area S of the through-holes B B means the total area of ​​all the through holes B provided in the base 11. By appropriately setting the size of the through holes B in this way, it is possible to obtain a sufficient effect of discharging air bubbles without reducing the adhesive strength or rigidity of the housing body 10.

[0027] Here, the ratio S B If the ratio S / S is less than 1.0%, the through holes B are too small compared to the size of the base 11, and therefore, the bubble discharge effect cannot be sufficiently obtained. B If / S exceeds 25.0%, the through-holes B are too large compared to the size of the base 11, which tends to reduce the adhesive strength and rigidity of the housing body .

[0028] 5(a) to 5(c) show modified examples of a functional component-equipped container according to an embodiment of the present invention. As shown in FIGS. 5(a) and 5(b), a concave-convex region consisting of a convex portion 131 and a concave portion 132 is formed on the bottom surface 13x of the container portion 13. The convex portion 131 is disposed at the center of the container portion 13, and the concave portion 132 has a plurality of through-holes B1 disposed at intervals around the convex portion 131. In such a concave-convex region, the height difference dH between the convex portion 131 and the concave portion 132 (see FIG. 5(b)) is preferably in the range of 0.1 mm to 2.0 mm, more preferably in the range of 0.3 mm to 0.7 mm. Setting the height difference dH of the concave-convex region appropriately in this manner is advantageous in terms of the containment capacity and moldability of the functional component 20. Note that FIGS. 5(a) and 5(b) show a state in which the concave portion 132 is not filled with adhesive X.

[0029] When attaching such a housing body 10 to the inner surface of the tire, a predetermined amount of adhesive X is applied to the inner surface of the tire, and the housing body 10 is placed on top of it. The adhesive X flows into the recesses 132 through the through holes B1, filling the entire recesses 132 with the adhesive X. After the adhesive X pooled in the recesses 132 hardens, a circular adhesive filling region R is formed in the recesses 132. The height of this adhesive filling region R relative to the recesses 132 does not exceed the height of the protrusions 131 relative to the recesses 132, and is preferably equal to or less than the height of the protrusions 131. In this case, the height of the adhesive filling region R relative to the recesses 132 is preferably in the range of 0.1 mm to 2.0 mm, and more preferably in the range of 0.3 mm to 0.7 mm. FIG. 5(c) shows a case where the height of the adhesive filling region R is the same as the height of the protrusions 131. In this case, the bottom of the housing body 13 is uniformly flat in the area including the protrusions 131. In this way, by setting the height of the adhesive filling region R to be equal to or less than the height of the protrusion 131, it is possible to improve the durability of the functional component 20 while ensuring input to the functional component 20. This is because the protrusion 131, made of the relatively hard material A, is located below the sensor element 22 of the functional component 20, and therefore the impact received from the road surface when the tire touches the ground is efficiently transmitted to the functional component 20.

[0030] The adhesive filling region R shown in FIG. 5 can be formed, for example, using the core 30 shown in FIG. 6(a). This core 30 has a main body 31 having a shape substantially identical to the storage section 13 of the housing body 10, and at least one ventilation path 33 for discharging air (air bubbles) to the outside. The ventilation path 33 is disposed at a position corresponding to the through-hole B1 formed in the bottom surface 13x of the storage section 13 and penetrates the core 30 in the height direction. As shown in FIG. 6(b), adhesive X is applied to the inner surface of the tire, and then the housing body 10 is attached on the adhesive X with the core 30 inserted into the storage section 13. Then, air is discharged from the ventilation path 33 as the adhesive X cures. After the adhesive X cures, the core 30 is pulled out of the housing body 10. This allows the adhesive filling region R to be provided in the recess 132 formed in the bottom surface 13x of the storage section 13. The height of the adhesive filling region R relative to the recess 132 can be set as desired by, for example, appropriately adjusting the amount of adhesive X applied to the tire inner surface.

[0031] 7(a) to 7(c) show another modified example of a functional component-equipped container according to an embodiment of the present invention. As shown in FIG. 7(a), an uneven region consisting of protrusions 131 and 133 and a recess 132 is formed on the bottom surface 13x of the container 13. The protrusions 131 and 133 are disposed at the center of the container 13, and the recess 132 has a plurality of through holes B1 disposed at intervals around the periphery of the protrusion 131. The protrusions 131 and 133 are formed in a stepped shape relative to the recess 132, with the protrusion 131 being the highest and the protrusion 133 being the next highest. Note that FIG. 7(a) shows a state in which the adhesive X has not been filled into the recess 132.

[0032] When attaching such a housing body 10 to the inner surface of the tire, a predetermined amount of adhesive X is applied to the inner surface of the tire, and the housing body 10 is placed on top of it. The adhesive X flows out into the recesses 132 through the through holes B1, filling the entire recesses 132 with the adhesive X. After the adhesive X pooled in the recesses 132 hardens, a circular adhesive filling region R is formed in the recesses 132. The height of this adhesive filling region R relative to the recesses 132 does not exceed the height of the protrusions 133 relative to the recesses 132, and is preferably equal to or less than the height of the protrusions 133. FIG. 7(b) shows a case where the height of the adhesive filling region R is the same as the height of the protrusions 133. In this case, the area of ​​the bottom of the housing body 13 including the protrusions 133 is uniformly flat, and only the protrusions 131 protrude from that area.

[0033] In such an adhesive filling region R, the projected area S of the bottom surface 13x of the containing section 13 A The projected area S of the adhesive filling area R B1 The ratio S (shaded area in Figure 7(c)) B1 / S A ×100% is preferably in the range of 30% to 70%. A is the projected area of ​​the entire bottom surface 13x including the protrusions 131, 133 and the through-hole B1 when viewed from above. B1 is basically the projected area of ​​the adhesive filling region formed by filling the recess 132 with adhesive X when viewed from above, but if the adhesive X does not flow out of the through hole B1 and remains inside the through hole B1, it is the total area of ​​the through hole B1. B1 / S A By appropriately setting the value of the resistance, the sensing accuracy of the functional component 20 can be improved while maintaining the durability of the functional component 20.

[0034] In the present invention, the through holes B may be provided only on the inside or only on the outside of the container 10. Furthermore, the through holes B may be additionally provided in the side wall portion 12 other than the base portion 11. Furthermore, the planar shape and number of the through holes B are not particularly limited. 2, examples of the through holes B1 and B2 include a configuration in which each through hole B2 has a circular planar shape and is arranged at intervals around the side wall portion 12 as shown in Fig. 8(a), a configuration in which each through hole B1 has a circular planar shape and is arranged off-center from the center of the storage portion 13 as shown in Fig. 8(b), a configuration in which each through hole B1 has a fan-shaped planar shape and is arranged off-center from the center of the storage portion 13 as shown in Fig. 8(c), and a configuration in which each through hole B1 has a circular planar shape, each through hole B2 has a fan-shaped planar shape, and the through holes B1 and B2 are arranged at intervals around the side wall portion 12 as shown in Fig. 8(d). In the present invention, it is preferable that no through hole B1 is arranged in the central region of the bottom surface 13x of the storage portion 13, and that a member made of material A is present in a region below the sensor element 22 of the functional component 20.

[0035] Fig. 9 shows a pneumatic tire in which a container with functional parts is fixed to the inner surface of the tire. As shown in Fig. 9, the pneumatic tire has a tread portion 1 extending in the circumferential direction of the tire to form an annular shape, a pair of sidewall portions 2, 2 arranged on both sides of the tread portion 1, and a pair of bead portions 3, 3 arranged on the radially inner side of the sidewall portions 2.

[0036] A carcass layer 4 is mounted between the pair of bead portions 3, 3. This carcass layer 4 includes a plurality of reinforcing cords extending in the tire radial direction, and is folded back from the inside to the outside of the tire around a bead core 5 disposed in each bead portion 3. A bead filler 6 made of a rubber composition and having a triangular cross section is disposed on the outer periphery of the bead core 5.

[0037] On the other hand, multiple belt layers 7 are embedded on the outer peripheral side of the carcass layer 4 in the tread portion 1. These belt layers 7 include multiple reinforcing cords that are inclined with respect to the tire circumferential direction, and are arranged so that the reinforcing cords cross each other between the layers. In the belt layers 7, the inclination angle of the reinforcing cords with respect to the tire circumferential direction is set to a range of 10° to 40°, for example. Steel cords are preferably used as the reinforcing cords of the belt layers 7. At least one belt cover layer 8 is arranged on the outer peripheral side of the belt layer 7, with the aim of improving high-speed durability, and the reinforcing cords are arranged at an angle of, for example, 5° or less with respect to the tire circumferential direction. As the reinforcing cords of the belt cover layer 8, organic fiber cords such as nylon and aramid are preferably used.

[0038] The above-described tire internal structure is a typical example of a pneumatic tire, but is not limited to this.

[0039] In the pneumatic tire, a container 10 containing a functional part 20 having a sensor function for detecting tire information is installed on the back surface of the tread portion 1. Such a container with functional part is fixed to the back surface of the tread portion 1 of the tire with an adhesive X. [Example]

[0040] The tire size is 185 / 65R15, and the tire is equipped with a functional part and a housing body. The housing body has a base, a housing portion, and an opening. The back surface of the base is fixed to the inner surface of the tire with adhesive X. The shape of the housing body, M of the housing body 50A , the area of ​​the base of the container S, and the amount of adhesive X M 50X , the total area of ​​the through holes S B , the projected area of ​​the adhesive filling area S B1 , ratio M 50X / M 50A , ratio S B / S, ratio S B1 / S ATires of Comparative Examples 1 and 2 and Examples 1 to 5 were manufactured with the height difference of the bottom surface of the storage portion set as shown in Table 1. The functional part had a sensor function using a piezoelectric element as the sensor element, and the functional part was attached to the back surface of the tread portion via the storage body.

[0041] 11, the container 100 of Comparative Examples 1 and 2 has a base 101, a side wall 102, a container 103, and an opening 104, and no through-hole is formed in the base 101. The containers of Examples 1 to 3 do not have an uneven region on the bottom surface of the container, whereas the containers of Examples 4 and 5 have an uneven region on the bottom surface of the container, and an adhesive filling region made of adhesive X is formed in the recesses of the uneven region.However, in Example 4, the bottom surface of the container is uniformly flat, while in Example 5, the center of the container protrudes by 1.0 mm in the thickness direction of the base beyond the adhesive filling region.

[0042] These test tires were evaluated for workability during bonding, sensing accuracy, and durability of functional parts using the following test methods, and the results are shown in Table 1.

[0043] Workability when bonding: For each test tire, the task of fixing the housing containing the functional parts to the tire inner surface with an adhesive was repeated 10 times, the total time required for the task was measured, and the average task time per task was calculated. The evaluation results were expressed as an index using the reciprocal of the calculated value, with Comparative Example 1 being set at 100. A larger index value means better workability during bonding.

[0044] Sensing accuracy: Each test tire was mounted on a wheel with a rim size of 15 × 5.5 and mounted on a drum testing machine. A running test was conducted under conditions of an air pressure of 230 kPa, a load of 60% of the maximum load capacity, and a speed of 30 km / h. The output detected by the sensor element (piezoelectric element) was recorded. Figure 10 shows an example of the output waveform from the piezoelectric element. In this output waveform, when the portion of the tread where the functional component is installed comes into contact with the ground, negative and positive peaks are sequentially formed in the output of the piezoelectric element over time T, resulting in a peak-to-peak value V. The average value Vave and standard deviation σ of the peak-to-peak values ​​V of the output waveform obtained from each of the 10 measurements were then calculated, and the coefficient of variation CV (CV = σ / Vave) was calculated. The evaluation results were expressed as an index using the reciprocal of the coefficient of variation CV, with Comparative Example 1 being 100. A higher index value indicates better sensing accuracy. Sensing accuracy was evaluated in this manner.

[0045] Functional parts durability: Each test tire was mounted on a wheel with a rim size of 15 x 5.5 and attached to a drum testing machine. A running test was conducted with an air pressure of 360 kPa and a load of 88% of the maximum load capacity. Specifically, the speed was increased by 10 km / h every 10 minutes, and the maximum speed at which sensing by the functional parts was possible was measured. The evaluation results were expressed as an index, with Comparative Example 1 being 100. The higher the index value, the better the durability of the functional parts.

[0046] [Table 1]

[0047] As can be seen from Table 1, in comparison with Comparative Example 1, the tires of Examples 1 to 5 were improved in all of the workability during bonding, sensing accuracy, and durability of functional parts.

[0048] On the other hand, in Comparative Example 2, the modulus M of adhesive X 50XAlthough the sensing accuracy and durability of the functional parts could be improved by setting the value to a relatively low value, the workability during bonding could not be improved because no through-hole was provided in the base.

[0049] The present disclosure includes the following inventions [1] to

[10] . The invention [1] is a functional part-equipped container comprising a functional part having a sensor function for detecting tire information and a container in which the functional part is housed, the container having a base with at least one through-hole, a container section for housing the functional part, and an opening communicating with the container section for inserting and removing the functional part, the back surface of the base being fixed to the inner surface of the tire with adhesive X, and the modulus M of the adhesive X at 50% elongation 50X [MPa] and the modulus M of material A constituting the container at 50% elongation 50A [MPa] and 0.01≦M 50X / M 50A <1.00. Invention [2] is the functional part-equipped container according to invention [1], characterized in that the through-holes include through-holes arranged on the bottom surface of the container section. The invention [3] is a method for manufacturing a semiconductor device using a semiconductor laser, in which the total area S of the through holes is calculated based on the area S of the back surface of the base. B The functional part-equipped container according to the invention [1] or [2] is characterized in that the ratio of is in the range of 1.0% to 25.0%. Invention [4] is a container with functional parts according to any one of inventions [1] to [3], characterized in that the bottom surface of the container has an uneven area consisting of convex portions and concave portions, the height difference dH between the convex portions and the concave portions is in the range of 0.1 mm to 2.0 mm, and the through hole is arranged in the concave portion. Invention [5] is a container with functional parts according to invention [4], characterized in that the recess has an adhesive filling area made of the adhesive X, and the height of this adhesive filling area relative to the recess is equal to or less than the height of the protrusion relative to the recess. The invention [6] has an adhesive filling area made of the adhesive X in the recess, and the projected area S of the bottom surface of the storage sectionA The projected area S of the adhesive filling area B1 The functional part-equipped container according to the invention [4] or [5] is characterized in that the ratio of is in the range of 30% to 70%. Invention [7] is a container with functional parts according to any one of inventions [1] to [6], characterized in that a container for storing the functional parts is fixed to the back surface of the tread portion of the tire, and the functional parts are stored in the container. Invention [8] is a container with functional parts according to any one of inventions [1] to [7], characterized in that the container is made of one or more types of vulcanized rubber. An invention [9] is a container with functional parts according to any one of inventions [1] to [8], characterized in that the functional part has a sensor function using a piezoelectric element as a sensor element. The invention

[10] is a tire characterized in that the functional component-equipped container according to any one of the inventions [1] to [9] is fixed to the inner surface of the tire. [Explanation of symbols]

[0050] 1 Tread section 2 Sidewall 3 Bead section 10 Containment Unit 11 Base 11y back side 12 Side wall 13 Storage section 13x bottom 14 Openings 20 Functional parts 21 Contact surface 22 Sensor element B1,B2 through hole X Adhesive

Claims

1. A functional part-equipped container including a functional part having a sensor function for detecting tire information and a container for accommodating the functional part, The housing body has a base portion provided with at least one through hole, a housing portion for housing the functional component, and an opening portion communicating with the housing portion for inserting and removing the functional component, the back surface of the base portion is fixed to the tire inner surface with adhesive X, and the modulus M of the adhesive X at 50% elongation is 50X [MPa] and the modulus M of the material A constituting the container at 50% elongation 50A [MPa] and 0.01≦M 50X / M 50A <1.

00.

2. The container with functional parts according to claim 1 , wherein the through-holes include a through-hole disposed in the bottom surface of the container portion.

3. The total area S of the through holes relative to the area S of the back surface of the base B 2. The container with functional parts according to claim 1, wherein the ratio of the number of the functional parts is in the range of 1.0% to 25.0%.

4. The container with functional parts according to claim 1, characterized in that the bottom surface of the container section has an uneven area consisting of convex portions and concave portions, the height difference dH between the convex portions and the concave portions is in the range of 0.1 mm to 2.0 mm, and the through hole is arranged in the concave portion.

5. 5. The container with functional parts according to claim 4, wherein the recess has an adhesive filling area made of the adhesive X, and the height of this adhesive filling area relative to the recess is equal to or less than the height of the protrusion relative to the recess.

6. The recess has an adhesive filling area made of the adhesive X, and the projected area S of the bottom surface of the storage portion A The projected area S of the adhesive filling area B1 5. The container with functional parts according to claim 4, wherein the ratio of the number of the functional parts is in the range of 30% to 70%.

7. 2. The container with functional parts according to claim 1, wherein a container for accommodating the functional parts is fixed to the back surface of the tread portion of the tire, and the functional parts are accommodated in the container.

8. 2. The container with functional parts according to claim 1, wherein the container is made of one or more types of vulcanized rubber.

9. 2. A container with functional parts according to claim 1, wherein the functional parts have a sensor function using a piezoelectric element as a sensor element.

10. A tire, characterized in that the functional part-equipped container according to any one of claims 1 to 9 is fixed to the inner surface of the tire.

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