JP2020040466A - Functional component mounting pedestal, functional component, functional component mounting system, and tire - Google Patents

Abstract

To provide a functional component mounting pedestal which allows a functional component to be mounted to a tire inner surface in an appropriate direction, and to provide a functional component, a functional component mounting system, and a tire.SOLUTION: A functional component mounting pedestal 100 includes: a base part 120 contacting a tire inner surface; and an enclosing wall part 110 rising from the base part 120, and enclosing a lateral face of a functional component 200. On the base part 120, a mark 150 indicating a rotational direction of a tire is formed. Further, on a top face of the functional component 200, a mark 222 indicating the rotational direction of the tire is formed. In a top view of a state in which engaging protrusions 211 are inserted to second slit portions 142a via first slit portions 141a, the mark 150 and the mark 222 are aligned on a straight line.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a functional component mounting base, a functional component, a functional component mounting system, and a tire.

  2. Description of the Related Art A pneumatic tire mounted on a vehicle or the like (hereinafter, abbreviated as a tire as appropriate) is provided with a functional component such as a sensor for measuring temperature, internal pressure, acceleration, or the like on a tire inner surface such as an inner wall surface of a tread in contact with a road surface. In some cases. Such a tire is provided with a functional component mounting base for mounting the functional component on the inner surface of the tire (Patent Document 1).

JP 2005-532551 A

  In recent years, there has been a demand for accurately detecting acceleration when a tire rotates. The acceleration detected by the functional component (sensor) includes acceleration in the tire radial direction and acceleration in the tire width direction. In order for the functional component to accurately detect such accelerations acting in two directions, the functional component needs to be attached to the tire inner surface in an appropriate direction. However, the invention described in Patent Document 1 does not mention this point, and there is room for improvement.

  Therefore, the present invention has been made in view of such circumstances, and provides a functional component mounting pedestal, a functional component, a functional component mounting system, and a tire capable of mounting a functional component on an inner surface of a tire in an appropriate direction. With the goal.

  The functional component mounting pedestal according to one embodiment of the present invention includes a base portion (base portion 120) in contact with the tire inner surface (tire inner surface 30), and an enclosing wall that rises from the base portion and surrounds a side surface of the functional component (functional component 200). (Surrounding wall 110). A first mark (mark 150) indicating the rotation direction of the tire (tire 10) is formed on the base portion.

  According to the functional component mounting base described above, the functional component is mounted on the tire inner surface in an appropriate orientation.

FIG. 1 is a cross-sectional view of a pneumatic tire along a tire width direction and a tire radial direction. FIG. 2A is a perspective view of the functional component mounting pedestal according to the embodiment of the present invention. FIG. 2B is a top view of the functional component mounting base according to the embodiment of the present invention. FIG. 3 is a perspective view of a functional component mounting pedestal according to the embodiment of the present invention and a functional component mounted on the functional component mounting pedestal. FIG. 4 is a top view of the functional component mounting pedestal according to the embodiment of the present invention and the functional component mounted on the functional component mounting pedestal. FIG. 5A is a perspective view of a functional component mounting base according to another embodiment of the present invention, and a functional component mounted on the functional component mounting base. FIG. 5B is a top view of a functional component mounting pedestal according to another embodiment of the present invention, and a functional component mounted on the functional component mounting pedestal.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the description of the drawings, the same portions are denoted by the same reference numerals, and description thereof will be omitted.

(1) Configuration of Pneumatic Tire With reference to FIG. 1, a configuration of a pneumatic tire 10 (hereinafter, abbreviated as tire 10 as appropriate) according to the present embodiment will be described.

  As shown in FIG. 1, the tire 10 is used by being assembled to a rim hole 50. The space inside the tire 10 assembled in the rim hole 50 is filled with a gas such as air.

  A functional component 200 is mounted on the back side of the tread 20 that contacts the road surface. Examples of the functional component 200 include a sensor that measures temperature, internal pressure, acceleration, and the like. The functional component 200 is not limited to a sensor, and may be a wireless communication device (wireless device) or the like. In the present embodiment, the functional component 200 is described as a device that mainly detects acceleration. The acceleration detected by the functional component 200 includes an acceleration in a tire radial direction and an acceleration in a tire width direction. In order for the functional component 200 to accurately detect acceleration, the functional component 200 needs to be attached to the tire inner surface 30 in an appropriate direction.

  The functional component 200 is mounted on the inner surface of the tire 10, specifically, on the tire inner surface 30 via the functional component mounting base 100. That is, the functional component mounting pedestal 100 is a pedestal for mounting the functional component 200 to the tire inner surface 30.

  The functional component mounting base 100 is mounted on the tire inner surface 30. The method of attaching the functional component attachment pedestal 100 to the tire inner surface 30 is not particularly limited. The separate functional component mounting pedestal 100 may be adhered with an adhesive, or may be integrally formed when the tire 10 is vulcanized, if possible.

  Although the type of the tire 10 is not particularly limited, the present embodiment will be described as being mounted on a construction vehicle (such as an off-road dump truck) used in a large-scale civil engineering work site or a mining site of a mine. Of course, the tire 10 may be mounted on a car such as a passenger car, a truck, a bus, or the like that travels on a normal paved road (general road and highway).

(2) Structure of Functional Component Mounting Base Next, the structure of the functional component mounting base 100 will be described with reference to FIGS. 2A and 2B.

  As shown in FIG. 2A, the functional component mounting pedestal 100 has a surrounding wall 110 and a base 120. The functional component mounting base 100 is made of an elastic body and has flexibility. The functional component mounting base 100 can be made of an elastomer material such as rubber, and preferably has an HS hardness of 30 to 80 degrees.

  The surrounding wall 110 rises from the base 120 and surrounds the side surface of the functional component 200. When the functional component mounting pedestal 100 is mounted on the tire inner surface 30, the surrounding wall portion 110 may be described as extending inward in the tire radial direction from the base portion 120 in contact with the tire inner surface 30.

  The inner wall surface of the surrounding wall portion 110 contacts the side surface of the functional component 200. As shown in FIG. 2B, the surrounding wall portion 110 is circular in a top view so as to surround the side surface of the functional component 200 having a circular planar shape. The base 120 is also circular, like the surrounding wall 110. The diameter of the base 120 is larger than the diameter of the surrounding wall 110. The functional component 200 is inserted into the opening 130 formed by the surrounding wall 110. The shapes of the surrounding wall 110 and the base 120 are not limited to circular. For example, the shape of the base 120 may be rectangular.

  The mark 150 (first mark) formed on the base portion 120 indicates the rotation direction of the tire 10. In the following, the rotation direction of the tire 10 is simply referred to as the rotation direction. The shape of the mark 150 is not particularly limited as long as the shape indicates the rotation direction. As an example, the shape of the mark 150 shown in FIGS. 2A and 2B is a triangular shape indicating the rotation direction. In FIG. 2B, of the three vertices forming mark 150, a straight line passing through the vertex outside base portion 120 indicates the rotation direction. Note that the mark 150 may have a shape that directly indicates the rotation direction, or may have a shape that indirectly indicates the rotation direction. For example, the mark 150 may have a shape indicating a direction shifted by 90 degrees from the rotation direction.

  As shown in FIG. 2A, engagement recesses 140 a to 140 d that engage with the engagement protrusions 211 provided on the side surface of the functional component 200 are formed on the inner wall surface of the surrounding wall 110. The engagement projection 211 will be described later. In the present embodiment, four engagement recesses are formed, but the number is not limited to this. It is sufficient that two or more engagement recesses are formed. Further, as shown in FIG. 2B, the engagement recesses 140 a to 140 d are formed at irregular intervals along the circumference of the surrounding wall 110. In other words, the engaging recesses 140a to 140d are not formed at equal intervals along the circumference of the surrounding wall 110.

  As shown in FIG. 2A, the engagement recess 140a has a width corresponding to the engagement protrusion 211, and extends in a first direction (vertical direction of the functional component mounting pedestal 100) orthogonal to the bottom surface of the base 120. The one slit portion 141a and the second slit portion 142a which is continuous with the end of the first slit portion 141a on the base portion 120 side and extends in a second direction orthogonal to the first direction (the left-right direction of the functional component mounting base 100). Have. Although not shown, the engagement recesses 140b to 140d also have first slit portions 141b to 141d and second slit portions 142b to 142d, respectively.

  Further, as shown in FIG. 2B, the engagement recesses 140a, 140d and the engagement recesses 140b, 140c are formed symmetrically with respect to a straight line L intersecting with a straight line indicating the rotation direction. That is, in FIG. 2B, there are two sets of engagement recesses formed to be line-symmetric. One set is engagement recesses 140a and 140d. The other set is engagement recesses 140b and 140c. As shown in FIG. 2B, a distance D1 along the circumference between one pair of recesses (engaging recesses 140a and 140d) and a circumference D1 between the other pair of recesses (engaging recesses 140b and 140c). Is equal to the distance D2.

  When attaching the functional component mounting base 100 to the tire inner surface 30, the user may mount the functional component mounting base 100 such that the rotation direction and the mark 150 match. Then, as described later, when the user attaches the functional component 200 to the functional component mounting base 100, the functional component 200 is attached to the tire inner surface 30 in an appropriate direction. Thereby, the functional component 200 can accurately detect the acceleration.

  Next, a method of attaching the functional component 200 will be described with reference to FIGS.

  As shown in FIG. 3, the functional component 200 includes a grip 220 for a user to grip the functional component 200, and a main body 210 formed below the grip 220. The main body 210 stores an acceleration sensor, a battery, a board, and the like. On the side surface of the main body 210, an engagement protrusion 211 that engages with the engagement recesses 140a to 140d is formed. A plurality of notches 221 are formed in the grip portion 220. By forming the notch 221, the user can easily hold the functional component 200. The diameter of the grip 220 is slightly larger than the diameter of the opening 130. A part of the grip part 220 contacts the inner wall surface of the surrounding wall part 110 in a state where a certain pressure is applied.

  As shown in FIG. 3, a mark 222 (second mark) is formed on the upper surface of the grip 220. The mark 222 indicates the rotation direction in the same manner as the mark 150. Further, the shape of the mark 222 is a triangular shape like the shape of the mark 150. However, the shape of the mark 222 is not particularly limited as long as the shape indicates the rotation direction. The mark 222 may have a shape that directly indicates the rotation direction, or may have a shape that indirectly indicates the rotation direction.

  As shown in FIG. 3, the user inserts the engaging projection 211 into the corresponding first slit portion 141a. Although not shown, there are four first slit portions. Thereafter, the user rotates the functional component 200 clockwise to insert the engaging projection 211 into the second slit portion 142a. Thereby, the functional component 200 is fixed to the functional component mounting base 100.

  As shown in FIGS. 3 and 4, in a top view in a state where the engaging protrusion 211 is inserted through the second slit portion 142a via the first slit portion 141a, the mark 150 and the mark 222 Line up along.

  The user may mount the functional component mounting base 100 and the functional component 200 with the target shown in FIG. Thereby, the convenience of the user at the time of the mounting operation is improved. In the state shown in FIG. 4, the functional component 200 can accurately detect the acceleration.

(3) Function / Effect As shown in FIG. 2A, a mark 150 indicating the rotation direction of the tire 10 is formed on the base 120 of the functional component mounting base 100. The user can attach the functional component attachment pedestal 100 to the tire inner surface 30 such that the mark 150 and the rotation direction match. Thereby, the convenience of the user at the time of the mounting operation is improved. After attaching the functional component mounting pedestal 100 to the tire inner surface 30, the user attaches the functional component 200 to the functional component mounting pedestal 100. At this time, as shown in FIG. 3, the user inserts the engaging projections 211 into the corresponding first slit portions 141a (engaging recesses 140a). As described above, since the engaging recesses 140a (the engaging recesses 140a to 140d) are formed at irregular intervals along the circumference of the surrounding wall 110, the engaging protrusions of the functional component 200 and the Positioning of the component mounting pedestal 100 with the engaging recess is facilitated. Further, as shown in FIG. 2B, the engagement recesses 140a and 140d and the engagement recesses 140b and 140c are formed symmetrically with respect to a straight line L intersecting with a straight line indicating the rotation direction. Of the two sets of engagement recesses formed symmetrically with each other, a distance D1 along the circumference between one set of recesses (engagement recesses 140a and 140d) and a gap between the other set of recesses (engagement recesses). The distance D2 along the circumference in 140b and 140c) is equal. This makes it easier for the user to grasp the intervals between the engagement recesses 140a to 140d. Therefore, the alignment between the engaging projections 211 of the functional component 200 and the engaging recesses 140a to 140d of the functional component mounting pedestal 100 is further facilitated.

  After inserting the engaging projection 211 into the corresponding first slit portion 141a, the user rotates the functional component 200 clockwise to insert the engaging projection 211 through the second slit portion 142a. Thereby, the functional component 200 is fixed to the functional component mounting base 100. In a top view in this state, as shown in FIG. 4, the mark 150 and the mark 222 formed on the upper surface of the functional component 200 are arranged in a straight line along the rotation direction. The user may mount the functional component mounting base 100 and the functional component 200 with the target shown in FIG. Thereby, the user can attach the functional component 200 to the functional component mounting base 100 in an appropriate direction. Therefore, according to the present embodiment, the convenience of the user at the time of the mounting operation is improved. In the state shown in FIG. 4, the functional component 200 can accurately detect the acceleration.

  Although the embodiments of the present invention have been described above, it should not be understood that the description and drawings forming part of this disclosure limit the present invention. From this disclosure, various alternative embodiments, examples, and operation techniques will be apparent to those skilled in the art.

  For example, as shown in FIG. 5A, a mark 160 (third mark) indicating the rotation direction may be formed on the edge 110a of the surrounding wall 110. As shown in FIG. 5B, in a top view in a state where the engagement convex portion 211 is inserted through the second slit portion 142a via the first slit portion 141a, the mark 150, the mark 222, and the mark 160 are rotated in the rotation direction. Line up along. The user may mount the functional component mounting base 100 and the functional component 200 with the target shown in FIG. 5B as a target. Thereby, the convenience of the user at the time of the mounting operation is further improved.

DESCRIPTION OF SYMBOLS 10 Tire 20 Tread 30 Tire inner surface 50 Rim hole 100 Functional component mounting base 110 Surrounding wall 110a Edge 120 Base 130 Openings 140a to 104d Engaging recess 141a First slit portion 142a Second slit portion 150 Mark (first mark)
160 mark (3rd mark)
200 functional component 210 main body 211 engaging projection 220 gripping part 222 mark (second mark)

Claims (8)

A functional component mounting base for mounting the functional component on the tire inner surface, which is the inner surface of the tire,
A base portion in contact with the tire inner surface,
An enclosing wall portion that rises from the base portion and surrounds a side surface of the functional component,
A functional component mounting base, wherein a first mark indicating a rotation direction of the tire is formed on the base portion. The surrounding wall portion is circular in a top view of the functional component mounting pedestal,
On the inner wall surface of the surrounding wall portion, a plurality of engaging concave portions that are engaged with the engaging convex portions provided on the side surface of the functional component are formed,
The functional component mounting pedestal according to claim 1, wherein the engagement concave portions are formed at irregular intervals along a circumference of the surrounding wall portion. The functional component mounting pedestal according to claim 2, wherein the engagement recess is formed symmetrically with respect to a straight line that intersects a straight line indicating the rotation direction of the tire. The engagement recess includes two sets of recesses formed in the line symmetry,
4. The functional component mounting base according to claim 3, wherein a distance along the circumference between the recesses of one set is equal to a distance along the circumference between the recesses of the other set. 5. The functional component mounting pedestal according to claim 1, wherein a third mark indicating a rotation direction of the tire is formed at an edge of the surrounding wall. A functional component attached to the tire inner surface, which is the inner surface of the tire, using the functional component mounting base,
The functional parts mounting base is
A base portion in contact with the tire inner surface,
An enclosing wall portion that rises from the base portion and surrounds a side surface of the functional component,
On the inner wall surface of the surrounding wall portion, an engagement concave portion that engages with an engagement convex portion provided on a side surface of the functional component is formed,
The engagement recess,
A first slit portion having a width corresponding to the engagement convex portion and extending in a first direction orthogonal to a bottom surface of the base portion;
A second slit portion connected to an end of the first slit portion on the base portion side and extending in a second direction orthogonal to the first direction;
A functional component, wherein a second mark indicating a rotation direction of the tire is formed on an upper surface of the functional component. A functional component mounting base for mounting a functional component on a tire inner surface that is an inner surface of the tire, and a functional component mounting system including the functional component,
The functional component mounting base,
A base portion in contact with the tire inner surface,
An enclosing wall portion that rises from the base portion and surrounds a side surface of the functional component,
On the inner wall surface of the surrounding wall portion, an engagement concave portion that engages with an engagement convex portion provided on a side surface of the functional component is formed,
The engagement recess,
A first slit portion having a width corresponding to the engagement convex portion and extending in a first direction orthogonal to a bottom surface of the base portion;
A second slit portion connected to an end of the first slit portion on the base portion side and extending in a second direction orthogonal to the first direction;
A first mark indicating a rotation direction of the tire is formed on the base portion,
A second mark indicating a rotation direction of the tire is formed on an upper surface of the functional component,
The first mark and the second mark are arranged in a straight line in a top view in a state where the engagement convex portion is inserted through the second slit portion via the first slit portion. Functional component mounting system.   A tire comprising the functional component mounting pedestal according to claim 1 or the functional component mounting system according to claim 7.

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