JP6439420B2 - Tube type tire / rim assembly - Google Patents

Description

The present invention relates to Ruchi cube type tire rim assembly having a production is easy and excellent ride comfort and fuel efficiency.

  Conventionally, as disclosed in Patent Document 1, a non-pneumatic tire is known in which air is not filled between an inner surface of a tire and a rim. In such a non-pneumatic tire, unlike a pneumatic tire including a bead portion, a sidewall portion, a shoulder portion, and a tread portion, no carcass or the like is provided in the tire. For this reason, it is not necessary to individually manufacture each part such as a carcass, a belt, a tread, and a bead and then assemble it into a single tire with a molding machine, so that the manufacturing is easy.

JP 2013-39922 A

  However, in a non-pneumatic tire, the impact received from the road surface during tire rolling cannot be buffered by the air in the tire. For this reason, compared with a pneumatic tire, there exists a tendency for riding comfort performance to deteriorate.

  Further, in a non-pneumatic tire, the ground contact portion of the tread ring is greatly deformed when the tire rolls, so that energy loss increases. For this reason, the rolling resistance of the tire is increased, and as a result, the fuel efficiency of the tire is deteriorated.

The present invention aims at providing an easy and and excellent ride comfort and Ruchi cube type tire rim assembly having a fuel efficiency manufacturing.

A tube-type tire / rim assembly according to an aspect of the present invention includes a ring-shaped tube filled with gas, a ring-shaped tread ring disposed on the outer side in the tire radial direction of the tube, and the tube. A tube-type tire including a tube-reinforcing member that at least partially surrounds, and a rim on which the tube-type tire is assembled. The tube-reinforcing member is fixed to the rim.

  It is preferable that the tube, the tread ring, and the tube reinforcing member are assembled as separate parts and can be separated.

  The tube reinforcing member has a mark indicating an arrangement position of the tread ring in a state where the tube reinforcing member surrounds the tube, and the tread ring is indicated by the mark in the tube reinforcing member. It is preferable to be disposed at a position.

  The mark is preferably provided continuously in the tire circumferential direction or intermittently in the tire circumferential direction.

  It is preferable that the tube reinforcing member includes a cord.

  The tube preferably has a radially outer surface in direct contact with a radially inner surface of the tread ring via the tube reinforcing member.

  The tube-type tire may further include a ring-shaped protection ring disposed between the tube and the tread ring.

  The tube may have a plurality of air chambers.

  It is preferable that the tread ring includes a reinforcing layer including a material having higher bending rigidity than the outermost rubber layer.

  It is preferable that the tread ring is bonded to an adjacent member.

  It is preferable that the tube reinforcing member is disposed at least from the position of the end of the tread ring in the tire width direction to the position of the end of the rim.

  The tube-type tire / rim assembly further includes two ring-shaped fixing rings assembled to the rim on the inner side in the tire radial direction than the tube, and the tube reinforcing member includes the rim and the fixing ring. It is preferable to be sandwiched between.

  A fixing groove may be formed in the rim, the tube reinforcing member may have a fixing claw, and the fixing claw may be fitted in the fixing groove.

  A bolt hole may be formed in the rim, a through hole may be formed in the tube reinforcing member, and the tube reinforcing member may be fixed to the rim with a bolt.

According to the present invention, production easy and and excellent ride comfort and Ruchi cube type tire rim assembly having a fuel consumption performance is provided. By providing the tube reinforcing member with a mark indicating the position of the tread ring, a tube type tire / rim assembly that is easy to assemble is provided.

FIG. 1 is a perspective view of a tube. FIG. 2 is a perspective view of the tread ring. FIG. 3 is a partial perspective view of the tube reinforcing member. FIG. 4 is a partial plan view of the tube reinforcing member, showing an example of the configuration of the tube reinforcing member. FIG. 5 is a perspective view of the protect ring. FIG. 6 is a front view of a tube type tire / rim assembly according to one embodiment of the present invention. FIG. 7 is a front view of the fixing ring. FIG. 8 is a tire meridian cross-sectional view of a tube-type tire / rim assembly, and is a diagram showing a first mode for fixing a tube reinforcing member to the rim. FIG. 9 is a front view of a tube type tire / rim assembly provided with a fixing ring. FIG. 10 is a tire meridian cross-sectional view of a tube-type tire / rim assembly, and is a diagram showing a second mode for fixing the tube reinforcing member to the rim. FIG. 11 is a tire meridian cross-sectional view of a tube-type tire / rim assembly, and is a diagram showing a third mode for fixing a tube reinforcing member to the rim. FIG. 12 is a diagram illustrating one example of the shape of the fixing claw and the fixing groove. FIG. 13 is a diagram illustrating one example of the shape of the fixing claw and the fixing groove. FIG. 14 is a diagram illustrating one example of the shape of the fixing claw and the fixing groove. FIG. 15 is a diagram illustrating one example of the shape of the fixing claw and the fixing groove. FIG. 16 is a diagram illustrating one example of the shape of the fixing claw and the fixing groove. FIG. 17 is a diagram illustrating one example of the shape of the fixing claw and the fixing groove. FIG. 18 is a tire meridian cross-sectional view of a tube-type tire / rim assembly, and is a diagram showing a fourth mode for fixing a tube reinforcing member to the rim. FIG. 19 shows a tire meridian cross-sectional view of a tube-type tire / rim assembly, and is a diagram showing a fifth mode for fixing a tube reinforcing member to the rim. FIG. 20 is a diagram illustrating an example of the arrangement of the tube reinforcing member, the tread ring, and the rim. FIG. 21 is a diagram illustrating an example of mark arrangement. FIG. 22 is a view showing a tire meridian cross section passing through a mark position of the tube type tire / rim assembly. FIG. 23 is a diagram illustrating another example of the arrangement of marks. FIG. 24 is a diagram showing another example of mark arrangement. FIG. 25 is a diagram illustrating another example of the tread ring. FIG. 26 is a diagram showing a tube-type tire / rim assembly including a tube-type tire configured using a tube having a plurality of air chambers.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. Note that these embodiments do not limit the present invention. In addition, constituent elements of the above embodiment include those that can be easily replaced by those skilled in the art and those that are substantially the same. Furthermore, various forms included in the above embodiments can be implemented in any combination within the obvious range of those skilled in the art. The tube type tire of this embodiment can be mounted on a vehicle such as a passenger car.

  First, terms used in the description of the embodiments are defined as follows. The tire radial direction means a direction orthogonal to the rotation axis of the tube-type tire. The inner side in the tire radial direction means the side toward the rotation axis in the tire radial direction. The outer side in the tire radial direction means the side away from the rotation axis in the tire radial direction. The tire circumferential direction means a direction around the rotation axis as a central axis. The tire width direction means a direction parallel to the rotation axis. The inner side in the tire width direction means the side toward the tire equatorial plane CL in the tire width direction. The outer side in the tire width direction means a side away from the tire equatorial plane CL in the tire width direction. The tire equatorial plane CL means a plane that is orthogonal to the rotation axis of the tube-type tire and passes through the center of the tire width of the tube-type tire.

  FIG. 1 is a perspective view of a tube. FIG. 2 is a perspective view of the tread ring. FIG. 3 is a partial perspective view of the tube reinforcing member. FIG. 4 is a partial plan view of the tube reinforcing member, showing an example of the configuration of the tube reinforcing member. FIG. 5 is a perspective view of the protect ring. FIG. 6 is a front view of a tube type tire / rim assembly according to one embodiment of the present invention. FIG. 7 is a front view of the fixing ring.

  The tube-type tire 1 according to this embodiment includes a ring-shaped tube 3, a ring-shaped tread ring 5, a tube reinforcing member 7, and a protect ring 9. As shown in FIG. 6, the tube 3 is assembled to the outer peripheral surface of the rim 11. The tread ring 5 has a larger outer diameter than the tube 3 and is disposed on the outer side in the tire radial direction of the tube 3. The tube 3 and the tread ring 5 are disposed concentrically on the rim 11.

  The tube 3 is a hollow elastic body and is filled with a gas such as air or nitrogen. The tube 3 extends over the entire circumference in the tire circumferential direction and has a ring shape as a whole. The tube 3 is made of, for example, a synthetic rubber such as butyl rubber, natural rubber, or the like. The tube 3 may have an air valve 31 for filling or discharging gas from the inside. The tube 3 has the same function (internal pressure holding) as a conventional tire tube. The tube 3 has a structure in which the internal space is not connected to the outside other than the openable / closable part such as the air valve 31.

  In addition, the tube 3 consists of the division | segmentation tube divided | segmented into plurality in the tire width direction, the tire circumferential direction, or the tire radial direction, and may have a ring shape as a whole. When the tube 3 has a plurality of divided tubes, even if one divided tube is punctured, the load can be held by another divided tube, so that traveling can be continued even after puncturing. Also, when puncture occurs, only the punctured divided tube needs to be replaced.

  The tread ring 5 is a solid elastic body. The tread ring 5 extends over the entire circumference in the tire circumferential direction and has a ring shape as a whole. The tread ring 5 is made of a known material used as a tread rubber material in a normal pneumatic tire. The outer peripheral surface 51 of the tread ring 5 contacts the road surface when the tire rolls, and corresponds to the tread surface of the pneumatic tire. A tread pattern having a predetermined pattern is formed on the outer peripheral surface 51 of the tread ring 5 in order to improve traveling performance on a wet road surface. A tread pattern having a predetermined pattern is also formed on the inner peripheral surface 53 of the tread ring 5, and the outer peripheral surface 51 and the inner peripheral surface 53 of the tread ring 5 communicate with each other through a through hole 55 extending in the tire radial direction. It may be. As a result, water on the road surface can be more efficiently discharged from the ground contact surface.

  In the tube type tire 1, there are no parts corresponding to the bead part, the sidewall part, and the shoulder part of the pneumatic tire, and no carcass or the like is provided in the tire. For this reason, it is not necessary to individually manufacture each part such as a carcass, a belt, a tread, and a bead and then assemble it into a single tire with a molding machine, so that the manufacturing is easy. Further, the amount of rubber used for one tire can be reduced.

  In conventional pneumatic tires including run-flat tires, if the tire punctures, the entire tire must be replaced. On the other hand, in the tube-type tire 1, even if the tire is punctured, only the tube 3 needs to be replaced, so the tire replacement cost due to puncture is reduced. Further, when the tread ring 5 is worn, only the tread ring 5 can be replaced. Furthermore, the desired performance according to the road surface condition can be easily obtained by properly using a plurality of tread rings 5 having various tread patterns and materials.

  Moreover, in the tube type tire 1, the impact received from a road surface at the time of tire rolling can be buffered with the gas in the tube 3 like a pneumatic tire. For this reason, the tube-type tire 1 can have riding comfort performance equivalent to that of a pneumatic tire.

  Further, in the tube type tire 1, the tube 3 is deformed instead of the ground contact portion of the tread ring 5 when the tire rolls. That is, when the tire rolls, the entire tire is deformed eccentrically, and the rotation center of the tire is deviated, so that the deformation of the contact portion of the tread portion is reduced. For this reason, energy loss becomes small and the rolling resistance of the tire becomes small. As a result, the tube-type tire 1 can have excellent fuel efficiency.

  The tube-type tire 1 includes a tube reinforcing member 7 that at least partially surrounds the tube 3 shown in FIG. In FIG. 3, a part of the tube reinforcing member 7 is cut and omitted for easy understanding. The tube reinforcing member 7 extends over the entire circumference in the tire circumferential direction and has a hollow ring shape as a whole. The tube reinforcing member 7 is put on the tube 3, and the tube 3 is accommodated in the hollow portion of the tube reinforcing member 7. In the present embodiment, the tube reinforcing member 7 surrounds the outer side in the tire radial direction and the outer side in the tire width direction of the tube 3. The tube reinforcing member 7 has a sheet shape, and both ends may be bonded so as to have a ring shape as a whole after being covered with the tube 3.

  The tube reinforcing member 7 is made of a cord. The cord is, for example, a woven fabric, a biaxial woven fabric in which warp and weft intersect at 90 °, and two warps at 60 ° with respect to one weft. It is a triaxial woven fabric that intersects, or a four-axis woven fabric in which two yarns intersect at an angle of 45 ° to a yarn that intersects the length and width of the biaxial fabric. The material of the cord is, for example, polyester, nylon, rayon, aramid, polyketone, polyethylene naphthalate, or a mixture thereof. The cord may be either a single wire or a stranded wire. The cord may be covered with rubber or resin, or may be surface-treated in advance by dipping treatment or the like.

  As a weaving method of the tube reinforcing member 7, plain weave, twill weave, triaxial weave, or the like can be used. In the example of FIG. 4, the cord of the tube reinforcing member 7 is a biaxial fabric in which the warp yarn 71 and the weft yarn 73 intersect at 90 °.

  After the tube 3 is assembled to the rim 11, when the gas is filled therein, the tube 3 expands in the tire radial direction and the tire width direction. At this time, expansion toward the inside in the tire radial direction is suppressed by the rim 11, and expansion toward the outside in the tire radial direction is suppressed by the tread ring 5 or a protect ring 9 described later. However, since there is no member on the outer side in the tire width direction of the tube 3, the expansion of the tube 3 to the outer side in the tire width direction cannot be suppressed. For this reason, the position in the tire width direction of the tube 3 with respect to the rim 11 or the tread ring 5 may be shifted at the time of tire rolling, which means that the ride performance is lowered, the rolling resistance is increased, and the fuel efficiency is lowered. Bring.

  In the present embodiment, the tube 3 is covered with the tube reinforcing member 7, and the tube reinforcing member 7 surrounds the outer side in the tire radial direction and the outer side in the tire width direction of the tube 3. Expansion to the outside in the direction can be suppressed. For this reason, the tube type tire 1 provided with the tube reinforcement member 7 can have more excellent riding comfort performance and fuel consumption performance.

  Moreover, since the tube reinforcement member 7 covers the outer surface of the tube 3, it can reduce that the tube 3 is damaged by a protrusion. Therefore, the tube reinforcing member 7 can also improve the puncture resistance of the tire.

  The tube-type tire 1 further includes a ring-shaped protect ring 9. As shown in FIG. 6, the protect ring 9 has an outer diameter larger than that of the tube 3 and smaller than that of the tread ring 5, and is disposed between the tube 3 and the tread ring 5. The protect ring 9 is disposed concentrically with the tube 3 and the tread ring 5.

  The protect ring 9 extends over the entire circumference in the tire circumferential direction and has a ring shape as a whole. The protect ring 9 is a solid rigid body, such as metals such as steel and aluminum alloys, thermosetting resins, thermoplastic resins, or carbon fiber reinforced plastic (CFRP) and glass fiber reinforced plastic (GFRP). Made of fiber reinforced plastic.

  Since the protect ring 9 is disposed between the tread ring 5 and the tube 3, even if a protrusion or the like penetrates the tread ring 5 in the tire radial direction, it prevents the protrusion from entering the tube 3. Can do. For this reason, the protect ring 9 can improve the puncture resistance of the tire. Moreover, since the protect ring 9 can suppress the deformation | transformation to the tire radial direction of the contact part of the tread ring 5 at the time of tire rolling, it can make tire rolling resistance small. For this reason, the protect ring 9 can also improve the fuel efficiency of the tire.

  The tube type tire 1 is used by being assembled to a rim 11. The rim 11 is made of a material such as aluminum. The rim 11 may be a normal rim used with a pneumatic tire.

  The tube reinforcing member 7 is preferably fixed to the rim 11. As a result, the displacement of the tube reinforcing member 7 during rolling of the tire can be reduced, so that the tube reinforcing member 7 can more effectively suppress the expansion of the tube 3. Hereinafter, five exemplary modes for fixing the tube reinforcing member 7 to the rim 11 will be described.

  In the first aspect, the tube-type tire / rim assembly further includes two ring-shaped fixing rings 13 as shown in FIG. The fixing ring 13 is a solid elastic body. The fixing ring 13 extends over the entire circumference in the tire circumferential direction and has a ring shape as a whole. The fixing ring 13 is made of, for example, synthetic rubber such as butyl rubber, natural rubber, metal such as steel and aluminum alloy, thermosetting resin, thermoplastic resin, or carbon fiber reinforced plastic (CFRP) and glass fiber reinforced plastic ( It is composed of fiber reinforced plastic such as GFRP.

  FIG. 8 shows a tire meridian cross-sectional view of the tube type tire / rim assembly 100a, and shows a first mode for fixing the tube reinforcing member 7a to the rim 11a. FIG. 9 is a front view of a tube-type tire / rim assembly 100 a provided with the fixing ring 13. The tube-type tire / rim assembly 100a shown in FIGS. 8 and 9 includes a ring-shaped tube 3a, a ring-shaped tread ring 5a, and a tube reinforcing member 7a. The tube-type tire / rim assembly 100a is attached to the rim 11a. Since the tube-type tire / rim assembly 100a does not include a protect ring, the radially outer surface of the tube 3a is in contact with the radially inner surface of the tread ring 5a via the tube reinforcing member 7a. Although the tube type tire 1a shown in FIGS. 8 and 9 does not include a protect ring, it is understood that the protect ring may be disposed between the tread ring 5a and the tube 3a.

  As shown in FIG. 8, the two fixing rings 13 are assembled to the rim 11a by press-fitting, adhesion, or the like, in the tire radial direction inner side than the tube 3a. The innermost portion in the tire radial direction of the tube reinforcing member 7a is wound around the fixing ring 13 from the inner side to the outer side in the tire width direction, and is sandwiched between the rim 11a and the fixing ring 13. The tire meridian cross-sectional shape of the fixing ring 13 is not limited to the shape shown in FIG. 8 as long as the tube reinforcing member 7a can be pressed against the rim 11a. By using the two fixing rings 13, the tube reinforcing member 7a can be fixed to the rim 11a by using a normal rim 11a used together with a pneumatic tire. The two fixing rings 13 may be integrated with the tube reinforcing member 7a or may be separate.

  FIG. 10 shows a tire meridian cross-sectional view of the tube type tire / rim assembly 100b, and shows a second mode for fixing the tube reinforcing member 7b to the rim 11b. FIG. 11 shows a tire meridian cross-sectional view of the tube type tire / rim assembly 100c, and shows a third mode for fixing the tube reinforcing member 7c to the rim 11c.

  In the second mode, a fixing groove 113b is formed on the inner side (tube 3b side) of the flange 111b of the rim 11b, and the tube reinforcing member 7b has a fixing claw 73b. In the third aspect, a fixing groove 113c is formed outside the flange 111c of the rim 11c (on the side opposite to the tube 3c), and the tube reinforcing member 7c has a fixing claw 73c. In the second and third modes, the tube-reinforcing members 7b and 7c are fitted to the fixing grooves 113b and 113c of the rims 11b and 11c so that the tube-reinforcing members 7b and 7c are fitted to the rims 11b and 11c. Fixed to.

  The tube reinforcing members 7b and 7c have a plurality of fixing claws 73b and 73c, and the plurality of fixing grooves 113b and 113c are formed on the rims 11b and 11c at predetermined intervals over the entire circumference in the tire circumferential direction. Is preferred. As a result, the tube reinforcing members 7b and 7c can be more firmly fixed to the rims 11b and 11c. Moreover, although the tube type tires 1b and 1c shown in FIGS. 10 and 11 do not include a protect ring, it is understood that the protect ring may be disposed between the tread ring 5b and the tubes 3b and 3c. Good. It is more preferable that the fixing claws 73 b and 73 c are substantially continuous over the entire circumference in the tire circumferential direction and have a ring shape like the fixing ring 13.

  12 to 17 show examples of the shapes of the fixing claw and the fixing groove, respectively. As shown in FIGS. 12 to 17, the tire meridional cross-sectional shapes of the fixing claws 73 d to 73 i are, for example, a circle, a semicircle, two consecutive semicircles, a triangle, a quadrangle, a trapezoid, and the like. In this case, the fixing grooves 113d to 113i have shapes complementary to the fixing claws 73d to 73i.

  FIG. 18 is a tire meridian cross-sectional view of the tube-type tire / rim assembly 100d, and shows a fourth mode for fixing the tube reinforcing member 7d to the rim 11d. In the fourth aspect, a bolt hole 115d is formed on the outer side of the flange 111d of the rim 11d (the side opposite to the tube 3d), and a through hole 75d is formed in the tube reinforcing member 7d. A female screw is cut in the bolt hole 115d. In the fourth aspect, the two bolts 15 are screwed into the bolt holes 115d through the through holes 75d of the tube reinforcing member 7d, whereby the tube reinforcing member 7d is fixed to the rim 11d.

  The through holes 75d and the bolt holes 115d are preferably formed at predetermined intervals over the entire circumference in the tire circumferential direction, and the tube reinforcing member 7d is preferably fixed to the rim 11d with bolts 15 at a plurality of tire circumferential positions. As a result, the tube reinforcing member 7d can be more firmly fixed to the rim 11d. Further, although the tube type tire 1d shown in FIG. 18 does not include a protect ring, it is understood that the protect ring may be disposed between the tread ring 5b and the tube 3d.

  FIG. 19 shows a tire meridian cross-sectional view of the tube-type tire / rim assembly 100e, and shows a fifth mode for fixing the tube reinforcing member 7e to the rim 11e. In the fifth aspect, an insertion hole 117 is formed in the center portion of the rim 11e in the tire width direction, and a through hole 75e is formed in the tube reinforcing member 7e. In the fifth aspect, the bolt 15 is screwed into the nut 17 through the insertion hole 117 of the rim 11e and the through hole 75e of the tube reinforcing member 7e, whereby the tube reinforcing member 7e is fixed to the rim 11e.

  The through holes 75e and the insertion holes 117 are preferably formed at predetermined intervals over the entire circumference in the tire circumferential direction, and the tube reinforcing member 7e is preferably fixed to the rim 11e with bolts 15 at a plurality of tire circumferential positions. As a result, the tube reinforcing member 7e can be more firmly fixed to the rim 11e. Further, although the tube type tire 1e shown in FIG. 19 does not include a protect ring, it is understood that the protect ring may be disposed between the tread ring 5b and the tube 3e.

  Here, the tube-type tire is manufactured by assembling a tube, a tread ring, and a tube reinforcing member, which are provided as separate parts, with respect to the rim. For example, in a tire store, each part may be arranged and assembled with respect to a rim worn by a store clerk when selling tires. Further, the user may assemble a tube-type tire immediately before using the tire. The tube type tire can be an assembly type by adopting the above-described configuration, and the weight of the tire, the number of parts can be reduced, and the manufacturing process can be simplified. Moreover, since it is an assembly type, it is easy to disassemble and replace parts after assembly. That is, the tube, the tread ring, and the tube reinforcing member are assembled as separate parts and can be separated. Hereinafter, a manufacturing method of the tube type tire and the tube type tire / rim assembly will be described.

  The tube, the tread ring, and the fixing ring are each manufactured through a material mixing process, a material processing process, a vulcanization process, an inspection process after vulcanization, and the like. The protect ring and the rim are manufactured by casting, forging, injection molding, cutting, or the like.

  In the case of a tube type tire / rim assembly equipped with a protection ring, each part is assembled as follows. First, a tube reinforcing member is placed over a tube that is not filled with gas so as to at least partially surround the tube. Next, the tube covered with the tube reinforcing member is assembled to the outer peripheral surface of the rim. In addition, you may cover a tube reinforcement member after attaching a tube to the outer peripheral surface of a rim. Next, the protect ring is disposed outside the tube in the tire radial direction. Next, the tread ring is disposed outside the protect ring in the tire radial direction. At this time, the tread ring may be fixed to the protect ring by press fitting, bonding, or the like, and the protect ring may be bonded to the tube reinforcing member. Finally, the inside of the tube is filled with gas. As a result, the tube is in close contact with the outer peripheral surface of the rim, and in close contact with the inner peripheral surface of the protect ring via the tube reinforcing member.

  In the case of a tube-type tire / rim assembly without a protect ring, the parts are assembled as follows. First, a tube reinforcing member is placed over a tube that is not filled with gas so as to at least partially surround the tube. Next, the tube covered with the tube reinforcing member is assembled to the outer peripheral surface of the rim. In addition, you may cover a tube reinforcement member after attaching a tube to the outer peripheral surface of a rim. Next, the tread ring is disposed outside the tube reinforcing member in the tire radial direction. At this time, the tread ring may be fixed to the tube reinforcing member by being bonded to the tube reinforcing member. Finally, the inside of the tube is filled with gas. As a result, the tube adheres to the outer peripheral surface of the rim.

  The tube-type tire / rim assembly may not include at least one of the tube reinforcing member and the protect ring. In consideration of workability, it is preferable to fill the inside of the tube with gas after all parts are assembled to the rim. However, even if the gas is filled at a different timing (for example, before the tube is assembled to the rim). Good.

  When the tube reinforcing member is fixed to the rim with the fixing ring, first, the two fixing rings are assembled to the outer peripheral surface of the rim on the outer side in the tire width direction. After that, when assembling the tube covered with the tube reinforcing member to the outer peripheral surface of the rim, the elastic fixing ring is lifted from the rim, the tube reinforcing member is passed between the fixing ring and the rim, and the tube reinforcing member is fixed. Between the rim and the rim. When the tube reinforcing member is covered on the tube after the tube is assembled to the outer peripheral surface of the rim, the tube reinforcing member is sandwiched between the fixing ring and the rim when the tube reinforcing member is covered.

  When the tube reinforcing member is fixed to the rim with the fixing claw, when the tube covered with the tube reinforcing member is assembled to the outer peripheral surface of the rim, the fixing claw of the tube reinforcing member is fitted into the fixing groove of the rim. When the tube reinforcing member is put on the tube after the tube is assembled to the outer peripheral surface of the rim, the fixing tab of the tube reinforcing member is fitted to the fixing groove of the rim when the tube reinforcing member is put.

  When fixing the tube reinforcing member to the rim with bolts, when assembling the tube covered with the tube reinforcing member to the outer peripheral surface of the rim, the bolt is threaded into the bolt hole or nut of the rim through the through hole of the tube reinforcing member. . In addition, when the tube reinforcing member is put on the tube after the tube is assembled to the outer peripheral surface of the rim, when the tube reinforcing member is put, the bolt is threaded into the bolt hole or the nut of the rim through the through hole of the tube reinforcing member. .

  FIG. 20 is a diagram illustrating an example of the arrangement of the tube reinforcing member, the tread ring, and the rim. As shown in FIG. 20, the tube reinforcing member 7 is disposed at least from the position of the end portion in the tire width direction of the tread ring 5 to the position of the end portion of the rim 11 in a state of surrounding the tube 3. Is preferred. As long as the tube reinforcing member 7 is disposed so as to cover the tube 3 in the range H from the position of the end portion of the tread ring 5 in the tire width direction to the position of the end portion of the rim 11, pressure resistance and tire rigidity are provided. Can be secured. The tube reinforcing member 7 may surround the entire tube 3.

  By the way, a mark indicating the arrangement position of the tread ring in a state where the tube reinforcing member surrounds the tube may be provided on the tube reinforcing member. FIG. 21 is a diagram showing an example of the arrangement of marks provided on the tube reinforcing member 7f. FIG. 21 is a partial perspective view of the tube reinforcing member 7f. As shown in FIG. 21, in this example, two circular marks M1 and M2 are provided on the tube reinforcing member 7f. As shown in FIG. 21, the marks M1 and M2 are provided on the surface of the tube reinforcing member 7f at positions separated in the tire circumferential direction.

  FIG. 22 is a view showing a tire meridian cross section passing through the position of the mark M1 of the tube-type tire / rim assembly 100. FIG. As shown in FIG. 22, the mark M1 is provided on the surface of the tube reinforcing member 7f at a position corresponding to the position of the end of the tread ring 5 in the tire width direction. Although not shown, the mark M2 is similarly provided on the surface of the tube reinforcing member 7f at a position corresponding to the position of the end of the tread ring 5 in the tire width direction.

  When the tube type tire / rim assembly 100 is assembled, the tread ring 5 is provided on the surface of the tube reinforcing member 7f so that both ends of the tread ring 5 in the tire width direction are positioned at the positions of the marks M1 and M2, respectively. . By performing the assembling work in this way, the relative positions of the tube reinforcing member 7f and the tread ring 5 can be brought into an appropriate state. That is, the marks M1 and M2 indicate the arrangement positions of the tread ring 5 in a state where the tube reinforcing member 7f surrounds the tube 3.

  The tread ring 5 may be bonded to the surface of the tube reinforcing member 7f with an adhesive. By adhering the tread ring 5 and the tube reinforcing member 7f with an adhesive, it is possible to ensure the durability of the connection state of the interface between the tread and the tube reinforcing member 7f. In order to strengthen the adhesive force, surface treatment may be applied to at least the adhesive surface of the tube reinforcing member 7f.

  As an adhesive used for bonding the tread ring 5 and the tube reinforcing member 7f, for example, a two-component mixed type adhesive, more preferably a two-component mixed room temperature curing type adhesive can be used. A stimulus response type adhesive that causes a reversible reaction such as hardening or softening by a stimulus such as heat or electricity may be used.

  The tube 3 and the tube reinforcing member 7f may be bonded or may not be bonded.

  23 and 24 are diagrams showing another example of the arrangement of marks provided on the tube reinforcing member 7f. 23 and 24 are partial perspective views of the tube reinforcing member 7f.

  In the example shown in FIG. 23, a plurality of circular marks M3 and M4 are provided on the surface of the tube reinforcing member 7f. A plurality of marks M3 and M4 are provided on the surface of the tube reinforcing member 7f intermittently in the tire circumferential direction. In the example shown in FIG. 24, linear marks M5 and M6 are provided on the surface of the tube reinforcing member 7f. The marks M5 and M6 have a shape that is continuous in the tire circumferential direction on the surface of the tube reinforcing member 7f. The marks M3 and M4 and the marks M5 and M6 also indicate the arrangement positions of the tread ring 5 in a state where the tube reinforcing member 7f surrounds the tube 3.

  As described above, since the marks M1 and M2, the marks M3 and M4, or the marks M5 and M6 are provided on the surface of the tube reinforcing member 7f, the assembly work of the tube type tire / rim assembly 100 can be easily performed. And can be carried out efficiently. That is, in assembling the tube-type tire / rim assembly 100, when the tread ring 5 is disposed outside the tube reinforcing member 7f in the tire radial direction, the tread ring 5 is disposed and bonded with the position of the mark as a target. Can do. For this reason, the relative position of the tread ring 5 and the tube reinforcing member 7f can be in an appropriate state.

  23 and 24, in order to improve the efficiency of the assembly work of the tube-type tire / rim assembly 100, the distance between the mark M3 and the mark M4 in the tire width direction, and the distance between the mark M5 and the mark M6 in the tire width direction. Is preferably equal to the width of the tread ring 5 disposed on the surface of the tube reinforcing member 7f. However, since it is only necessary to know the relative position, the width does not need to be exactly the same.

  The marks M1 to M4 may be a circle, a rhombus, a star, or other symbols, or symbols such as “!”, “&”, “$”, And “#”. The marks M1 to M4 may be provided on the surface of the tube reinforcing member 7f by printing, or may be provided on the surface of the tube reinforcing member 7f by bonding protrusions. Further, in the tube reinforcing member 7f, the mark may be provided on the surface of the tube reinforcing member 7f by forming the mark portion with a member having a different color from other portions. For example, when the tube reinforcing member 7f is a woven fabric made of a cord, the mark may be provided on the surface of the tube reinforcing member 7f by setting the mark portion to a cord having a different color from the cords of other portions.

  FIG. 25 is a diagram illustrating another example of the tread ring. FIG. 25 shows a tire meridional section of a tube-type tire / rim assembly. In FIG. 25, the tread ring 5 c includes the reinforcing layer 50. That is, in the tread ring 5c, the reinforcing layer 50 is disposed inside the rubber layer on the solid ring made of rubber. The rubber layer may be a laminate of a plurality of rubber layers or a single layer. The rubber layer has a tread pattern with a radially outer surface serving as a ground contact surface. The reinforcing layer 50 is formed using a material having higher bending rigidity than the outermost rubber of the tread ring 5c. For example, a rubber layer reinforced with an organic fiber cord such as steel, polyester, nylon, rayon, aramid, polyketone, polyethylene naphthalate, or a mixture thereof may be used as the reinforcing layer 50. The cord may be a single wire or a stranded wire. Moreover, you may comprise the reinforcement layer 50 with the material containing a thermosetting or thermoplastic resin. The tread ring 5c including the reinforcing layer 50 has higher rigidity than the case where the reinforcing layer 50 is not included.

  FIG. 26 is a diagram showing a tube-type tire / rim assembly 100f provided with a tube-type tire 1f configured using a tube 3f having a plurality of air chambers. FIG. 26 shows a tire meridian cross-sectional view of a tube-type tire / rim assembly. In FIG. 26, a partition wall 13a extending inward in the tire radial direction is formed in the tube 3f in parallel with the inner peripheral surface of the tread ring 5f in the tire meridian cross-sectional view. As the partition wall 13a, high-density polyethylene, polypropylene, polybutylene, polymethyl methacrylate, polystyrene, thermoplastic polyurethane, and the like can be used in addition to a normal rubber member used for the tube 3f.

  Thereby, the tube 3f is partitioned and formed by the partition wall 13a into a first chamber 131 close to the tread ring 5f and a second chamber 132 far from the tread ring 5f. That is, the tube 3f has a plurality of air chambers in the tire radial direction. For example, the first chamber 131 is filled with an elastic body, and the second chamber 132 is filled with gas. Here, air is generally used as the gas, but other nitrogen gas, a mixture of air and nitrogen, and the like can be used. In addition, the elastic body includes elastic bodies other than rubber such as thermoplastic urethane.

  In FIG. 26, gas is injected into the first chamber 131 through the air valve 31, and gas is injected into the second chamber 132 through the air valve 31a. These air valves 31 and 31a can be positioned on the opposite side (opposite position) in the tire circumferential direction in consideration of, for example, tire uniformity. In particular, the filling of the thermoplastic urethane into the first chamber 131 can be performed by injecting urethane foam through the air valve 31 and then curing the urethane foam in the first chamber 131.

  As shown in FIG. 26, the tube 3f has a plurality of air chambers, and by filling the first chamber 131 close to the tread ring 5f with an elastic body, foreign matter such as nails is formed on the outer surface of the tread ring 5f. Even in the case of piercing, the first chamber 131 located on the inner side in the tire radial direction of the tread ring 5f is filled with the elastic body, so that puncture is avoided and traveling for a fixed distance is possible. FIG. 26 shows a case where a tube-type tire is configured using a tube having a plurality of air chambers in the tire radial direction, but a tube-type tire is configured using a tube having a plurality of air chambers in the tire width direction. May be.

1, 1a, 1b, 1c, 1d, 1e, 1f Tube type tire 100, 100a, 100b, 100c, 100d, 100e, 100f Tube type tire / rim assembly 3, 3a, 3b, 3c, 3d, 3e, 3f tube 31, 31a Air valve 5, 5a, 5b, 5c, 5f Tread ring 50 Reinforcement layer 51 Outer peripheral surface 53 Inner peripheral surface 55 Through hole 7, 7a, 7b, 7c, 7d, 7e, 7f Tube reinforcing member 71 Warp thread 73 Weft thread 73b, 73c, 73d, 73e, 73f, 73g, 73h, 73i Fixing claw 75d, 75e Through hole 9 Protect ring 11, 11a, 11b, 11c, 11d, 11e Rim 111b, 111c, 111d Flange 113b, 113c, 113d, 113e, 113f 113g, 113h, 113i fixing groove 15d, 115e bolt hole 117 insertion hole 13 fixing ring 15 bolt 17 nut 131 first chamber 132 second chamber

Claims (14)

A ring-shaped tube filled with gas inside,
A ring-shaped tread ring disposed on the outer side in the tire radial direction of the tube ;
A tube reinforcement member that at least partially surrounds the tube;
And Ruchi cube-type tire with a,
A rim on which the tubular tire is assembled;
With
A tube-type tire / rim assembly in which the tube reinforcing member is fixed to the rim. The tube type tire and rim assembly according to claim 1 , wherein the tube, the tread ring, and the tube reinforcing member are assembled as separate parts and are separable . The tube reinforcing member has a mark that indicates an arrangement position of the tread ring in a state where the tube reinforcing member surrounds the tube,
The tube type tire and rim assembly according to claim 1 or 2, wherein the tread ring is disposed at a position indicated by the mark in the tube reinforcing member . The tube type tire / rim assembly according to claim 3, wherein the mark is provided continuously in the tire circumferential direction or intermittently in the tire circumferential direction . The tubular tire / rim assembly according to any one of claims 1 to 4, wherein the tube reinforcing member includes a cord . 6. The tube according to claim 1 , wherein a radially outer surface of the tube is in direct contact with a radially inner surface of the tread ring via the tube reinforcing member . Tube type tire / rim assembly. The tube type tire / rim assembly according to any one of claims 1 to 5, further comprising a ring-shaped protection ring disposed between the tube and the tread ring . The tube type tire and rim assembly according to any one of claims 1 to 7 , wherein the tube has a plurality of air chambers . The tube type tire / rim assembly according to any one of claims 1 to 8, wherein the tread ring includes a reinforcing layer including a material having a higher bending rigidity than the outermost rubber layer . The tubular tire / rim assembly according to any one of claims 1 to 9, wherein the tread ring is bonded to an adjacent member . The tube according to any one of claims 1 to 10, wherein the tube reinforcing member is disposed at least from a position of an end portion of the tread ring in a tire width direction to a position of an end portion of the rim. Type tire / rim assembly. Furthermore, two ring-shaped fixing rings assembled to the rim on the inner side in the tire radial direction than the tube,
The tube type tire / rim assembly according to any one of claims 1 to 11, wherein the tube reinforcing member is sandwiched between the rim and the fixing ring. The tube according to any one of claims 1 to 12 , wherein a fixing groove is formed in the rim, the tube reinforcing member has a fixing claw, and the fixing claw is fitted in the fixing groove. Type tire / rim assembly. Bolt holes are formed in said rim, said the through hole is formed in the tube reinforcing member, the tube reinforcing member is fixed to the rim bolts, as claimed in any one of claims 13 Tube type tire / rim assembly.

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