WO2015087879A1 - 空気入りタイヤ - Google Patents
空気入りタイヤ Download PDFInfo
- Publication number
- WO2015087879A1 WO2015087879A1 PCT/JP2014/082563 JP2014082563W WO2015087879A1 WO 2015087879 A1 WO2015087879 A1 WO 2015087879A1 JP 2014082563 W JP2014082563 W JP 2014082563W WO 2015087879 A1 WO2015087879 A1 WO 2015087879A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mechanical fastener
- tire
- fastener member
- pneumatic tire
- members
- Prior art date
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- 230000003014 reinforcing effect Effects 0.000 claims description 6
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- 229920001875 Ebonite Polymers 0.000 description 1
- 229940123973 Oxygen scavenger Drugs 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
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- 238000010276 construction Methods 0.000 description 1
- 239000002274 desiccant Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
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- 238000011835 investigation Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
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- 229920001778 nylon Polymers 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
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Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
- B60C23/02—Signalling devices actuated by tyre pressure
- B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
- B60C23/02—Signalling devices actuated by tyre pressure
- B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
- B60C23/0491—Constructional details of means for attaching the control device
- B60C23/0493—Constructional details of means for attaching the control device for attachment on the tyre
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/0061—Accessories, details or auxiliary operations not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/0061—Accessories, details or auxiliary operations not otherwise provided for
- B29D2030/0072—Attaching fasteners to tyres, e.g. patches, in order to connect devices to tyres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C2200/00—Tyres specially adapted for particular applications
- B60C2200/06—Tyres specially adapted for particular applications for heavy duty vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C2200/00—Tyres specially adapted for particular applications
- B60C2200/06—Tyres specially adapted for particular applications for heavy duty vehicles
- B60C2200/065—Tyres specially adapted for particular applications for heavy duty vehicles for construction vehicles
Definitions
- the present invention relates to a pneumatic tire.
- one of a pair of mechanical fastener members for attaching a specific object is provided on the inner surface of the pneumatic tire, and the other is provided on the object side having the specific function.
- the pneumatic tire configured to dispose an object having a specific function on the inner surface of the pneumatic tire by engaging the mechanical fastener member, in particular, the pair of mechanical fastener materials engaged with each other
- the pneumatic tire is capable of stably and firmly holding an object having the specific function on the tire inner surface without being easily released.
- Patent Document 1 A mounting method of mounting has been proposed (Patent Document 1).
- a pneumatic tire in which a surface fastener is vulcanized and bonded to a region corresponding to a tread portion on the tire inner surface, and a sound absorbing material is attached to the tire inner surface via the surface fastener (Patent Document). 2).
- the engagement state of the individual engaging elements of the hook-and-loop fastener is not ideal because the inner peripheral surface of the pneumatic tire is an annular curved surface. Some of them floated at the end portion or the central portion of the tire, and the magnitude of the resulting engagement force may vary (positional variation within the tire, variation between tires). For this reason, the engagement force as expected may not be obtained.
- the hook-and-loop fastener is preferable in that it can realize the engagement in a planar shape without causing a problem of some positional deviation in mounting.
- the attachment position is required to be more accurate and accurate, and there is a functional object that is not suitable for attachment with a hook-and-loop fastener in that respect.
- the inventors of the present invention have previously obtained a large engagement force, and there is almost no variation (positional variation within the tire, variation among tires). Even under severe use conditions in which deformation and compression associated with tire rolling at high temperatures and high speeds are repeated for a long time, the engagement force is less likely to deteriorate or decrease over time, and the desired engagement force can be maintained over a long period of time.
- a mechanical fastener called a hook or a snap is joined to the inner surface of the tire, and various objects having a desired function are attached through the mechanical fastener (Patent Literature). 3, 4, 5, etc.).
- a pneumatic tire having a tool is proposed (Claim (Claim 1) of Patent Document 3), and more specifically, the one fastener is composed of at least two components.
- the two components are fixed by sandwiching a tire member or a tire reinforcing material to constitute one of the fasteners (Claims of Patent Document 3 (Claim 2)) ).
- the object is engaged with the tire inner surface via the mechanical fastener.
- the engagement force obtained is large and the magnitude of the engagement force does not vary (positional variation within the tire, variation between tires).
- it can be accurately attached to a predetermined position, and the engagement force is hardly deteriorated or lowered over time due to severe use conditions that are repeated for a long time, and the desired engagement force is maintained over a long period of time.
- An excellent pneumatic tire that can be made was realized.
- one mechanical fastener attached to the inner surface of the tire is composed of at least two parts, and these two parts are fixed by sandwiching a tire member or a tire reinforcing material to constitute the one fastener. If it is used, the fixing is stronger, durability is better, and it is more excellent.
- An object of the present invention is to provide one of a pair of mechanical fastener members for attaching an object having a specific function to the inner surface of a pneumatic tire in view of the above-described points, and to specify the other one
- the pneumatic tire configured to dispose an object having a specific function on the inner surface of the pneumatic tire by engaging the pair of mechanical fastener members provided on the object side having the function of The engagement of the pair of mechanical fastener members engaged with each other is not easily released, and the object having the specific function can be stably and firmly held on the tire inner surface. It is to provide a pneumatic tire.
- the pneumatic tire of the present invention that achieves the above-described object has the following configuration (1).
- One member of a pair of mechanical fastener members that can be separated into two members A and B on the tire inner surface and can further engage the members A and B. And one or more mechanical fastener members A fixed to the tire lumen side, and the mechanical fastener members A and B have a lock mechanism for locking the engagement. Enter tire.
- the pneumatic tire of the present invention preferably has any of the following configurations (2) to (9).
- the mechanical fastener member A fixed to the tire lumen side includes a protruding column having a small outer diameter, a base portion having a flat base, and the protruding column.
- the base portion is buried inside the tire, the covered portion is exposed on the inner surface of the tire, and the base portion and the covered portion sandwich the tire member.
- the mechanical fastener member B paired with the mechanical fastener member A fixed to the tire lumen side engages with the mechanical fastener member A fixed to the tire lumen side.
- the protruding column having a small outer diameter that forms the base part constituting the mechanical fastener member A has a cylindrical column shape, and the cylindrical column shape has no through-hole in the center.
- the said base part and the said covering part are mutually fixed on both sides of the reinforcing material which is a tire member,
- the said mechanical fastener member A is comprised.
- the fixing strength of the mechanical fastener member A to the inner surface of the tire is greater than the engagement strength of the mechanical fastener members A and B when locked.
- the fixing strength of the mechanical fastener member A to the tire inner surface is 0.5 to 100 N / mm 2 , and the engagement strength of the mechanical fastener members A and B when locked is 0.
- the fixing strength of the mechanical fastener member A to the inner surface of the tire is 1.0 to 80 N / mm 2 , and the engagement strength of the mechanical fastener members A and B when locked is 0.
- the pneumatic tire as described in (8) above which is 5 to 30 N / mm 2 .
- one of a pair of mechanical fastener members for attaching an object having a specific function is provided on the inner surface of the pneumatic tire to form a pair.
- An object having a specific function is disposed on the inner surface of the pneumatic tire by providing the other mechanical fastener member on the object side having the specific function and engaging the pair of mechanical fastener members.
- the engagement between the pair of engaged mechanical fastener members is not easily released, and the object having the specific function can be stably attached to the tire inner surface. And it becomes possible to hold firmly.
- the effect obtained by the pneumatic tire of the present invention according to claim 1 described above can be more reliably exhibited.
- the engagement between the pair of mechanical fastener members can be reliably suppressed, so that the attached object is less likely to fall, and the function of the object can be stably maintained over a long period of time. It can be demonstrated.
- the mechanical fastener member A is more firmly fixed to the inner surface of the tire, so that the attached object is very unlikely to fall.
- a pneumatic tire capable of stably exhibiting the function of the tire over a long period of time.
- FIG. 1 is a partially fragmented cross-sectional perspective view showing an embodiment of the pneumatic tire of the present invention, and particularly shows the periphery of a mechanical fastener member provided on the inner surface of the tire.
- FIG. 2 shows a structural example of a pair of mechanical fasteners that can be separated into two members A and B that can be used in the pneumatic tire of the present invention and that can be engaged with each other. It is shown in an exploded view.
- FIG. 3 shows an example of the structure of the mechanical fastener member A that can be used in the pneumatic tire of the present invention, which is shown in an exploded view, and is a diagram of the mechanical fastener member A shown in FIG. Is the same.
- FIG. 1 is a partially fragmented cross-sectional perspective view showing an embodiment of the pneumatic tire of the present invention, and particularly shows the periphery of a mechanical fastener member provided on the inner surface of the tire.
- FIG. 2 shows a structural example of a pair of mechanical fasteners that
- FIG. 4 shows an example of the structure of a pair of mechanical fastener members A and B that can be used in the pneumatic tire of the present invention, shown in an exploded view, and the mechanical fastener shown in FIG. Although it is the same as the figure of the members A and B, the base part of the mechanical fastener member A is not illustrated.
- FIG. 5 shows another structural example of the mechanical fastener member A that can be used in the pneumatic tire of the present invention, which is an exploded view, and shows the mechanical fastener shown in FIGS. The difference from the tool member A is that it is fixed to the tire inner surface via a reinforcing material.
- FIG. 5 shows another structural example of the mechanical fastener member A that can be used in the pneumatic tire of the present invention, which is an exploded view, and shows the mechanical fastener shown in FIGS. The difference from the tool member A is that it is fixed to the tire inner surface via a reinforcing material.
- FIG. 6 shows another structure of a pair of mechanical fasteners that can be separated into two members A and B that can be used in the pneumatic tire of the present invention and that can be engaged with each other.
- An example is shown, which is an exploded view similar to FIGS. 2 and 4.
- FIGS. 7A and 7B are perspective views illustrating a method for measuring the fixing strength of the mechanical fastener member employed in the present invention.
- 8 (a) and 8 (b) are schematic diagrams for explaining a method for measuring the fixing strength of the mechanical fastener member employed in the present invention, in which a tensile test shaft jig is attached to the mechanical fastener. The method of engaging is shown.
- FIG. 9 is a schematic diagram for explaining a method for measuring the fixing strength of the mechanical fastener member employed in the present invention, and is a model example of the structure of a tensile test shaft jig engaged with the mechanical fastener. It is shown.
- FIG. 10 schematically shows the fixing position of the mechanical fastener member employed in the embodiment and is a schematic sectional view in the tire meridian direction.
- the pneumatic tire 1 of the present invention can be separated into two members A and B on the tire inner surface 2, and the members A and B can be further engaged with each other.
- One member 3 of the pair of mechanical fasteners and having one or more mechanical fastener members A fixed to the tire lumen side, the mechanical fastener members A and B are: It has a locking mechanism that locks the engagement between them.
- 4 is a tread portion
- 5 is a sidewall portion
- 6 is a bead portion.
- the mechanical fastener is a pair that can be separated into two fastener members and can be physically engaged again, and this engagement and separation can be repeated freely.
- the mechanism of the engagement itself is basically the same as that described in Patent Documents 3 to 5 described above.
- Typical examples are mechanical fasteners called hooks or snaps, which are generally used in the clothing industry, and more specifically, snap buttons, ring snaps, ring hooks, American snaps, American hooks, eyelet hooks, spring hooks.
- the term “jumper hook” is a general term, and unlike the so-called “surface fastener” in which the area of the engagement portion is infinite in all areas, the engagement portion has a small area (for example, preferably about 1 to 115 mm 2). Etc., more preferably about 4 to 90 mm 2 ). That is, for example, even engagement in a small area of about 1 to 115 mm 2 means that strong engagement is achieved by a mechanical male-female structure or the like, which itself has a known structure. Good.
- the material can be formed using metal, synthetic resin, hard rubber, or the like.
- the mechanical fastener members A and B have a lock mechanism for locking the engagement state between them. That is, in addition to the engagement mechanism, it has a lock mechanism.
- this locking mechanism By having this locking mechanism, the engagement between the mechanical fastener members A and B is suppressed from being released, and the specific arrangement disposed in the tire lumen via the mechanical fastener member is performed.
- An object having the above function can be prevented from falling off and falling, and can be reliably held in the tire lumen.
- the mechanical fastener members A and B have a lock mechanism that locks the engagement between them” means a mechanism that satisfies all the following requirements (a) to (c): It is to have.
- the mechanical fastener member A fixed to the tire lumen side is an example of a typical structure as shown in FIG.
- the base portion 13 includes a protruding column 11 having a small outer diameter and a flat base 12, and the covering portion 15 includes an insertion hole 14 having an inner diameter larger than the diameter of the protruding column 11.
- the base portion 13 is buried inside the tire (not shown), the covering portion 15 is exposed on the inner surface of the tire, and the base portion 13 and the covering portion 15 are sandwiched between tire members (not shown).
- the mechanical fastener member A is constituted by being fixed to the above. According to the knowledge of the present inventors, this combined structure can fix the mechanical fastener member A to the tire inner surface under the highest fixing strength.
- FIG. 2 shows a model diagram as an example.
- the mechanical fastener member B paired with the mechanical fastener member A fixed to the tire lumen side is engaged with the mechanical fastener member A fixed to the tire lumen side.
- the mechanical fastener member B is removed from the mechanical fastener member B.
- the claw portion 17 fitted to the groove portion 16 provided on the side surface of A protrudes so that the mechanical fastener members A and B are fitted to each other and a lock mechanism is configured. .
- the portion 18 of the mechanical fastener member B that is pressed in contact with the mechanical fastener member A has a spring characteristic that is recessed on the opposite side (upper side in the figure) when pressed, and the opposite side.
- the claw portion 17 protrudes toward the central axis.
- the protruding claw portion 17 is fitted into the groove portion of the member A as the engagement state of both members A and B advances, and the engagement state of both members is locked.
- This locking mechanism is preferable because it has a relatively simple structure and is reliable in operation.
- the locking mechanism for engaging the mechanical fastener members A and B since the locking mechanism for engaging the mechanical fastener members A and B is employed, the engagement (fitting) of the mechanical fastener member can be performed by an external force (centrifugal force or excessive road surface input). It will not be released.
- the spring characteristic that dents in the pressing direction when pressed is a characteristic that has been used for a long time with metal lids such as Ito cans that contain paint.
- the top of the mechanical fastener member B is pushed downward so as to be recessed, so that the protruding claw portion 17 spreads to the original state, is separated from the groove portion 16, and the engagement is released.
- FIG. 6 shows another structural example of a pair of mechanical fasteners that can be used in the pneumatic tire of the present invention, which is shown in an exploded view as in FIGS. 2 and 4 is that the covering portion 15 of the fastener member A has an arc-shaped cross-section edge line and bulges on the outer peripheral side to form a convex portion. is there.
- the shape of the fastener member B is also made so that it can be fitted to the covering portion 15. Because of the shape having the convex portion, once the claw portion 17 that has once protruded is fitted into the groove portion 16, the locking effect becomes extremely large.
- the protruding column 11 having a small outer diameter forming the base portion 13 constituting the mechanical fastener member A has a cylindrical column shape, and the cylindrical column shape has a central hole penetrating therethrough.
- the flat base portion preferably has a circular flat plate shape.
- the cylindrical columnar shape when the central hole passes through, unvulcanized rubber flows to the covered portion 15 side (the tire lumen side) through the hole during the vulcanization molding of the tire. This is not preferable because tire molding is not performed well at that portion.
- the cylindrical columnar hole in the non-penetrating state may be formed by sticking a plate-like sealing material on the flat plate portion (columnar bottom portion) or plugging the cylindrical portion.
- the flat base portion has a circular flat plate shape because the fixing strength of the mechanical fastener member A can be made more uniform in all directions.
- the diameter of the flat base portion 12 is preferably larger than the outer diameter of the maximum diameter portion of the covering portion 15.
- the mechanical fastener member A includes a base portion 13 and a covered portion 15, the base portion 13 is buried inside the tire, and the covered portion 15 is exposed on the inner surface of the tire, The base portion 13 and the covering portion 15 sandwich a reinforcing member 19 that is a tire member, and are fixed to each other to form a mechanical fastener member A.
- the fixing strength of the mechanical fastener member A is as follows: A range of 0.5 to 100 N / mm 2 is preferable.
- the fixing strength of the mechanical fastener member A to the inner surface of the tire is set to be greater than the engagement strength of the mechanical fastener members A and B at the time of locking the engagement, so that the inner surface of the mechanical fastener member A is tired. It is preferable that a fixing structure and an engagement structure of the mechanical fastener members A and B are formed. The reason for this is that when the engagement attachment state is gradually destroyed after the start of traveling as a tire due to the mass of an object attached to the tire inner surface, the mechanical fastener member A Since the engagement locking state of the mechanical fastener members A and B is destroyed before the fixing state to the tire inner surface is destroyed, damage to the tire body side is less likely to occur. Is preferred.
- the engagement strength of the mechanical fastener members A and B at the engagement lock has a certain level or more. According to the knowledge of the present inventors, the engagement strength is 0. It is preferably 2 to 50 N / mm 2 .
- the fixing strength of the mechanical fastener member A to the tire inner surface is larger than the engagement strength of the mechanical fastener members A and B at the time of engagement locking, and
- the fixing strength of the mechanical fastener member A to the tire inner surface is 0.5 to 100 N / mm 2
- the engagement strength of the mechanical fastener members A and B when locked is 0.2 to 50 N / mm 2 That is.
- the fixing strength of the mechanical fastener member A to the tire inner surface is practically preferable from the viewpoint of the general mass of the object to be attached, etc., within the range of 1.0 to 80 N / mm 2 .
- the engagement strength of the mechanical fastener members A and B when locked is more preferably 0.5 to 30 N / mm 2 .
- the attachment position of the mechanical fastener member 3 (A) is not particularly limited, other than the vicinity of the tire equator on the tire inner surface as shown in FIG. Since the tread portion 4 receives a strong centrifugal force due to tire rotation, and repeatedly receives the shape change of the inner surface of the tire accompanying the rolling of the tire, the bead portion 6 or the sidewall portion is less affected. It may be provided on the inner surface of the tire near 5. A plurality of the mechanical fastener members 3 (A) may be provided by being dispersed in any number of places. This is because even if one cannot be used, the other can be used.
- the fixing strength of the mechanical fastener member 3 is within the above-mentioned range (0.5 to 100 N / mm 2 ), according to the knowledge of the present inventors, almost all the objects to be attached in the tire lumen are obtained. It can cope with mounting and fixing sufficiently. If it is less than 0.5 N / mm ⁇ 2 >, it cannot respond to attaching a heavy object. On the other hand, if it is intended to realize a fixed strength exceeding 100 N / mm 2 , the rigidity in the circumferential direction of the tire becomes non-uniform when the rigidity of only the fixed portion of the tire structure is partially increased. For this reason, the uniformity deteriorates, which is not preferable, or when the rigidity is increased over the entire circumference of the tire as the method, the manufacturing cost is unnecessarily increased, which is not preferable.
- the tire member refers to a constituent member of a tire made of rubber, resin or the like, and specifically corresponds to an inner liner, a carcass, or the like.
- a rubber layer, a rubber-reinforced reinforcing fiber layer or a resin layer which is used for the exclusive purpose of being present between the base portion 13 of the fastener member A and the covering portion 15 on the inner surface of the tire,
- a reinforcing layer obtained by laminating a plurality of layers may be additionally provided as the reinforcing member 19.
- Such a configuration is generally preferable because the air blocking performance in the tire is improved.
- the object having a specific function disposed on the inner surface of the pneumatic tire is not particularly limited as long as it is determined according to the desired characteristics.
- an electronic device including a sensor Any one of a circuit, (b) a balance weight, (c) a run-flat core, (d) an object coated or mounted with an oxygen scavenger, a desiccant and / or an ultraviolet detection color former, and (e) a sound absorbing material Or the case where it is the object which combined those two or more is preferable.
- the pneumatic tire of the present invention is a tire for construction vehicles, industrial vehicles, or heavy loads having a tire outer diameter of 0.8 m or more.
- the wheels used for such tires generally have a shape that makes it difficult to attach the air pressure meter. This is because it is usually attached to the inner surface of the tire.
- the fixing strength of the mechanical fastener member A and the engagement strength when the mechanical fastener members A and B are engaged and locked are based on the measurement methods described below.
- (A) Method of measuring the fixing strength of the mechanical fastener member A After vulcanizing the green tire on which the mechanical fastener member 3 is installed and manufacturing the tire according to the present invention, in the vicinity of the mechanical fastener member 3 A tire is cut out to obtain a test sample S (FIG. 7A).
- a pair of holes 20 (FIG. 8 (a)) is formed in the mechanical fastener member 3 of the test sample, a rod-shaped penetrating jig 22 is passed through the pair of holes 20, and for the tensile test through the penetrating jig 22.
- the shaft jig 23 is attached to the test sample (FIG. 8B).
- the tensile test shaft-shaped jig 23 has the structure shown in the model diagram of FIG. 9, and has a pair of holes 21 near the cylindrical end portion.
- the inner surface of the tire around the mechanical fastener member 3 is used.
- the fixing plate 24 is fixedly installed on the plate 2, and the breaking force when the mechanical fastener member 3 is pulled out in the vertical direction with respect to the fixing plate 24 is obtained.
- the drawing speed is 500 ⁇ 50 mm / min.
- a fixing plate 24 having a hole with a diameter DE 1.30 to 1.35 times the diameter d of the protruding portion of the mechanical fastener 3 is used.
- the fixing plate 24 is firmly fixed so as not to rise. Thereafter, the tensile test shaft jig 22 is pulled upward, and the maximum value of the tensile force until the mechanical fastener 3 is detached from the tire structure is defined as the breaking force.
- the calculated value of the breaking force is a value obtained by dividing the maximum cross-sectional area of the mechanical fastener member 3 (N / mm 2 ) as a value per unit cross-sectional area.
- the value is a fixed strength (N / mm 2 ).
- the above measurement method should be said to be a specific example of the measurement method. If the method is based on the tensile test method as described above, it is more appropriate depending on the shape of the mechanical fastener. You may make some changes to the way you think.
- Tensile test (tensile speed 500 ⁇ 50 mm / minute) in the axial direction of mechanical fastener members A and B which are engaged and locked
- the same test is performed on three test samples, and the average value is defined as the engagement strength (N / mm 2 ).
- Example 1 and Comparative Example 1 As a mechanical fastener member, a pneumatic tire of the present invention in which the engagement between both members A and B can be locked by the mechanism shown in FIGS. 2 and 4 was manufactured.
- the mechanical fastening member is fixed to the tire inner surface with a rubber-reinforced reinforcing fiber layer (a fabric woven using nylon fiber yarns as warps and wefts and filled with rubber) 19.
- a rubber-reinforced reinforcing fiber layer (a fabric woven using nylon fiber yarns as warps and wefts and filled with rubber) 19.
- the pneumatic tire is for an industrial vehicle (diameter: about 2670 mm), and as shown in FIG. 10, one mechanical fastener member 3 is vulcanized on the equator portion of the inner peripheral surface of the tread portion.
- Example 1 is provided by vulcanization adhesion in the molding process (Example 1).
- a mechanical fastener member a pneumatic tire having a mechanical fastener member that is exactly the same as that of the first embodiment described above, except that the engagement between both members A and B is performed without providing a special locking mechanism. (Comparative Example 1).
- a pneumatic sensor (with a transmitter) was fixed using a mechanical fastener member.
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Abstract
Description
(1)タイヤ内面に、2つの部材A、Bに分離することができてさらにそれら部材A、Bどうしを係合させることができる一対の機械的留め具部材のうちの一方の部材であってかつタイヤ内腔側に固定されている機械的留め具部材Aを1つ以上有し、該機械的留め具部材A、Bは、前記係合をロックさせるロック機構を有することを特徴とする空気入りタイヤ。
(2)前記一対の機械的留め具部材のうち、タイヤ内腔側に固定されている機械的留め具部材Aは、外径の小さな突出柱と平板状基部を有するベース部と、該突出柱の径よりも大きな内径の挿入孔を有する被せ部からなり、前記ベース部はタイヤ内部に埋没し、前記被せ部はタイヤ内表面に露出し、該ベース部と該被せ部はタイヤ部材を挟んで、相互に固定されて機械的留め具部材Aを構成していることを特徴とする上記(1)記載の空気入りタイヤ。
(3)前記タイヤ内腔側に固定されている機械的留め具部材Aと対になる機械的留め具部材Bは、前記タイヤ内腔側に固定されている機械的留め具部材Aと係合する際に、該機械的留め具部材Aが機械的留め具部材Bと接触して該機械的留め具部材Bを押圧することにより、該機械的留め具部材Bから、前記機械的留め具部材Aの側面に設けられた溝部と嵌合する爪部が突出することにより、機械的留め具部材A、Bどうしが嵌合するように構成されて、前記ロック機構を構成していることを特徴とする上記(1)または(2)記載の空気入りタイヤ。
(4)前記機械的留め具部材Aを構成するベース部をなす前記外径の小さな突出柱は、筒状の柱状を呈しており、該筒状の柱状は中心の孔が貫通しておらず、前記平板状基部は、円形の平板状を呈していることを特徴とする上記(2)記載の空気入りタイヤ。
(5)前記ベース部と前記被せ部が、タイヤ部材である補強材を挟んで、相互に固定されて、前記機械的留め具部材Aを構成していることを特徴とする上記(2)記載の空気入りタイヤ。
(6)前記補強部材が、ゴム引き補強繊維層を含んでなることを特徴とする上記(5)記載の空気入りタイヤ。
(7)前記機械的留め具部材Aのタイヤ内面への固定強度が、前記機械的留め具部材A、Bの係合ロック時の係合強度よりも大きいことを特徴とする上記(1)~(6)のいずれかに記載の空気入りタイヤ。
(8)前記機械的留め具部材Aのタイヤ内面への固定強度が0.5~100N/mm2 であり、前記機械的留め具部材A、Bの係合ロック時の係合強度が0.2~50N/mm2 であることを特徴とする上記(1)~(7)のいずれかに記載の空気入りタイヤ。
(9)前記機械的留め具部材Aのタイヤ内面への固定強度が1.0~80N/mm2 であり、前記機械的留め具部材A、Bの係合ロック時の係合強度が0.5~30N/mm2 であることを特徴とする上記(8)記載の空気入りタイヤ。
(a)機械的留め具部材A、Bを係合させる際には、AとBを接近させる方向に力を加えることにより係合し、
(b)かつ、機械的留め具部材A、Bを係合解除させる際には、AとBを離間させる方向に力を加えて係合を解除する構造の機械的留め具において、
(c)係合を解除する前の段階で、上記(b)の方向とは別の方向に力を作用させることによって機能する機構を有し、その機構が働いてはじめて、上記(b)の動作が可能となる構造を有していること。
機械的留め具部材3を設置したグリーンタイヤを加硫し、本発明にかかるタイヤを製造した後、機械的留め具部材3の周辺でタイヤを切り出して試験サンプルSとする(図7(a))。試験サンプルの機械的留め具部材3に一対の穴20(図8(a))を開け、該一対の穴20に棒状の貫通冶具22を通し、該貫通治具22を介して、引張試験用軸状治具23を試験サンプルに取り付ける(図8(b))。引張試験用軸状治具23は、図9にモデル図を示した構造のものであり、円筒状の端部近くに一対の穴21を有している。
係合ロックさせた機械的留め具部材A、Bの軸方向に引張試験(引張速度500±50mm/分。基本的に、上記(A)機械的留め具部材Aの固定強度の測定法での引張速度と同じとする。)を行い、係合ロックされている部分の面積(係合ロックされている部分が環状の場合は囲まれた内部の面積も含める)でわり、機械的留め具部材A、Bの係合ロック時の係合強度(N/mm2 )を求めた。試験は、3つの試験サンプルで同じ試験を行い、その平均値を該係合強度(N/mm2 )とする。
機械的留め具部材として、両部材AとBの係合を図2、図4に示した機構によりロックすることができる本発明の空気入りタイヤを製造した。
2:タイヤ内面
3:機械的留め具部材
4:トレッド部
5:サイドウォール部
6:ビード部
11:突出柱
12:平板状基部
13:ベース部
14:挿入孔
15:被せ部
16:溝部
17:爪部
18:機械的留め具部材Aと接して押圧される部分
19:補強部材
20:試験サンプルの機械的留め具部材に開けられる一対の穴
21:引張試験用軸状治具の一対の穴
22:貫通治具
23:引張試験用軸状治具
24:固定板
A:タイヤ内腔側に固定されている機械的留め具部材
B:機械的留め具部材Aと対を構成する機械的留め具部材
Claims (9)
- タイヤ内面に、2つの部材A、Bに分離することができてさらにそれら部材A、Bどうしを係合させることができる一対の機械的留め具のうちの一方の部材であってかつタイヤ内腔側に固定されている機械的留め具部材Aを1つ以上有し、該機械的留め具部材A、Bは、前記係合をロックさせるロック機構を有することを特徴とする空気入りタイヤ。
- 前記一対の機械的留め具部材のうち、タイヤ内腔側に固定されている機械的留め具部材Aは、外径の小さな突出柱と平板状基部を有するベース部と、該突出柱の径よりも大きな内径の挿入孔を有する被せ部からなり、前記ベース部はタイヤ内部に埋没し、前記被せ部はタイヤ内表面に露出し、該ベース部と該被せ部はタイヤ部材を挟んで、相互に固定されて機械的留め具部材Aを構成していることを特徴とする請求項1記載の空気入りタイヤ。
- 前記タイヤ内腔側に固定されている機械的留め具部材Aと対になる機械的留め具部材Bは、前記タイヤ内腔側に固定されている機械的留め具部材Aと係合する際に、該機械的留め具部材Aが機械的留め具部材Bと接触して該機械的留め具部材Bを押圧することにより、該機械的留め具部材Bから、前記機械的留め具部材Aの側面に設けられた溝部と嵌合する爪部が突出することにより、機械的留め具部材A、Bどうしが嵌合するように構成されて、前記ロック機構を構成していることを特徴とする請求項1または2記載の空気入りタイヤ。
- 前記機械的留め具部材Aを構成するベース部をなす前記外径の小さな突出柱は、筒状の柱状を呈しており、該筒状の柱状は中心の孔が貫通しておらず、前記平板状基部は、円形の平板状を呈していることを特徴とする請求項2記載の空気入りタイヤ。
- 前記ベース部と前記被せ部が、タイヤ部材である補強材を挟んで、相互に固定されて、前記機械的留め具部材Aを構成していることを特徴とする請求項2記載の空気入りタイヤ。
- 前記補強部材が、ゴム引き補強繊維層を含んでなることを特徴とする請求項5記載の空気入りタイヤ。
- 前記機械的留め具部材Aのタイヤ内面への固定強度が、前記機械的留め具部材A、Bの係合ロック時の係合強度よりも大きいことを特徴とする請求項1~6のいずれかに記載の空気入りタイヤ。
- 前記機械的留め具部材Aのタイヤ内面への固定強度が0.5~100N/mm2 であり、前記機械的留め具部材A、Bの係合ロック時の係合強度が0.2~50N/mm2 であることを特徴とする請求項1~7のいずれかに記載の空気入りタイヤ。
- 前記機械的留め具部材Aのタイヤ内面への固定強度が1.0~80N/mm2 であり、前記機械的留め具部材A、Bの係合ロック時の係合強度が0.5~30N/mm2 であることを特徴とする請求項8記載の空気入りタイヤ。
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US15/104,228 US10160271B2 (en) | 2013-12-13 | 2014-12-09 | Pneumatic tire |
RU2016128062A RU2660204C2 (ru) | 2013-12-13 | 2014-12-09 | Пневматическая шина |
EP14868770.0A EP3081401B1 (en) | 2013-12-13 | 2014-12-09 | Pneumatic tire |
JP2015528770A JP5943152B2 (ja) | 2013-12-13 | 2014-12-09 | 空気入りタイヤ |
AU2014362537A AU2014362537B2 (en) | 2013-12-13 | 2014-12-09 | Pneumatic tire |
CN201480067610.1A CN105813865B (zh) | 2013-12-13 | 2014-12-09 | 充气轮胎 |
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- 2014-12-09 CN CN201480067610.1A patent/CN105813865B/zh active Active
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AU2014362537A1 (en) | 2016-07-14 |
CN105813865A (zh) | 2016-07-27 |
EP3081401A1 (en) | 2016-10-19 |
EP3081401B1 (en) | 2020-06-17 |
US20160318357A1 (en) | 2016-11-03 |
RU2660204C2 (ru) | 2018-07-05 |
CN105813865B (zh) | 2018-11-09 |
US10160271B2 (en) | 2018-12-25 |
AU2014362537B2 (en) | 2017-11-23 |
JPWO2015087879A1 (ja) | 2017-03-16 |
JP5943152B2 (ja) | 2016-06-29 |
EP3081401A4 (en) | 2017-08-02 |
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