JP2007210378A - Light emitting tire - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To remove defects of "a light-emitting tire" for a vehicle such as a conventional automobile or a bicycle or the like having "a light storage body" which emits afterglow light by the irradiation of the sunbeam from the outside or having "an electrical light-emitting body" such as an LED, EL or the like emitting light by receiving the power supply from a battery. <P>SOLUTION: "A light emitting tire" 10 for the vehicle is equipped with a tread (ground part) 11 and a side wall 12, and provided with "a stress light-emitting body" 100 repeatedly emitting light by a force. The light-emitting tire is provided with a ring-shaped stress light-emitting body 100 continued and divided to the side wall 12. By utilizing such an event that the tire 10 is always elastically deformed and vibrated in traveling of the vehicle, the force due to the deformation and vibration is applied to the stress light-emitting body 100, and the stress light-emitting body 100 emits the light. The tire can be seen to be ring shape by an after-image effect. The stress light-emitting body 100 can be provided on a contact part 11a with the road surface of the tread 11 or a groove part 11b. The tire improves traffic safety and exhibits a decoration effect, an illumination effect and an advertising effect or the like. The stress light-emitting body 100 can be added afterward. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

The present invention relates to a light emitting tire.

The present invention relates to a light emitting tire having a light emitter in a tire having a tread portion (grounding portion) and a sidewall portion (side wall).

Conventionally, as such a light-emitting tire, a light-emitting tire provided with (A) “light-emitting tire provided with a phosphorescent body” and (B) “electric light-emitting body” is known as shown below.

(A) <Luminous tire with phosphorescent body>

Conventionally, in a rubber tire having a tread part (grounding part) and an annular side wall part (side wall), a light emitting tire provided with a “phosphorescent body” in at least a part of the tire is known.

This “phosphorescent substance” is a fluorescent substance that exhibits phosphorescence, phosphorescence, afterglow, and night-light (glow-in-the-dark). Means a fluorescent member.

This “phosphor” accumulates energy when it is irradiated for a predetermined time with sunlight, ultraviolet rays from a fluorescent lamp, visible light, etc., and after the irradiation of the excitation light stops, it is visible in a longer wavelength band than the excitation light. Shows the characteristic of continuously producing afterglow of light rays.

Luminous tires containing such phosphors are light-emitting tires. Drivers and pedestrians of vehicles such as automobiles and bicycles can easily recognize each other, and traffic in dark places such as night and cloudy days. Accidents can be prevented and a decorative effect can be obtained.

The luminescent tire containing such a phosphorescent body is disclosed by patent document 1 thru | or patent document 7, for example.

Patent Document 1 (Japanese Patent Laid-Open No. 8-318715), “tires for automobiles, etc.” is easily noticeable by coloring and emitting light by coloring the peripheral groove portion and side surfaces of the tire with “fluorescent paint”. Thus, a luminescent tire that alerts the vehicle driver and prevents accidents such as rear-end collisions has been disclosed.

As a result, it is possible to provide a tire such as an automobile that can easily prevent a rear-end collision accident at night and daytime.

This “fluorescent paint” is described in paragraph 0015 of the specification of Patent Document 1 as being “nocturnal paint”.

Patent Document 2 (Japanese Patent Laid-Open No. 10-000907), “Tire, Wheel, Vehicle, and Manufacturing Method” includes a tread portion and a sidewall portion that are in contact with the ground of a wheel constituting a vehicle such as a bicycle or an automobile. In a vehicle tire, a vehicle tire including a phosphorescent material in at least a part of the sidewall portion is disclosed.

As a result, the vehicle driver, the bicycle driver, and the pedestrian can easily recognize each other and prevent a traffic accident at night.

In Patent Document 2, as a method for manufacturing a vehicle tire, a phosphorescent material is mixed into a raw tire, molded, vulcanized, a phosphorescent material is mixed into a sidewall portion, and an adhesive containing the phosphorescent material. It is disclosed that it has been applied, the phosphorescent material is applied to the sidewall portion, the phosphorescent material is embedded, and the phosphorescent material is embedded in the sidewall portion.

Patent Document 3 (Japanese Patent Laid-Open No. 2000-185528), “Tire”, and Patent Document 4 (US Pat. No. 6,807,995, October 26, 2004) corresponding thereto “Pneumatic tire singing long after phosphorous rubber composition (Pneumatic tire using long-glow phosphorescent rubber composition) ”includes a specific phosphorescent rubber composition that ensures visibility at night and in dark places and has a decorative effect. A luminescent tire used for a part of a tire is disclosed.

Disclosed is a tire including a rubber support, a non-black rubber that does not display black disposed on the rubber support, and a phosphorescent luminescent layer having a phosphorescent layer formed on at least a part of the outer surface of the non-black rubber. Has been.

In a tire in which non-black rubber is applied to at least a portion of the tire, at least a portion of the non-black rubber is blended with a strontium aluminate-based or calcium aluminate-based phosphorescent phosphor to substantially contaminate carbon black. Tires that do not contain a natural anti-aging agent and are crosslinked with a crosslinking agent other than sulfur. Also, a two-layer structure of the surface layer of the luminous rubber composition layer and a lower layer of a reflective rubber layer colored in a light color, or a surface layer of a transparent or translucent cover layer and a lower layer of the luminous rubber composition layer And adopting the non-black rubber as a two-layer structure.

Patent Document 5 (Japanese Patent Laid-Open No. 2003-049021), “Rubber composition and tire and hose comprising the rubber composition”, the rubber composition of the present invention is a diene rubber composition not containing carbon black. The diene rubber component is blended with ultramarine blue, further phosphorescent phosphorescent material is blended, and the light emission luminance of the rubber composition after 10 minutes from the irradiation of 400 lux light for 20 minutes is 10 mcd / m 2 or more. It is disclosed that.

Thus, a self-luminous rubber composition that accumulates daylight natural light and emits safe phosphorescence to the human body is obtained. Further, a beautiful blue rubber composition having high emission luminance is provided. Furthermore, a tire and a rubber hose that are visible even at night are provided.

Patent Document 6 (Japanese Patent Application Laid-Open No. 2003-118297), “Transcription Print and Tire Attached To It”, ensures sufficient light emission luminance and minimizes the amount of phosphorescent pigment used. A transfer print and a tire to which the transfer print is attached are disclosed.

The surface of an unvulcanized rubber sheet in which a phosphorescent rubber layer having a thickness of 0.5 mm or more obtained by blending a phosphorescent pigment with rubber and a base rubber layer having a thickness of 0.1 mm or more exhibiting a bright color are laminated. In US Pat. No. 6,057,834, it is disclosed to print a mask layer that forms an arbitrary display shape.

Patent Document 7 (US Pat. No. 6,807,995, October 26, 2004) “Glow-in-the-dark tire sidewalls”
(Side wall of the luminous tire), a rubber support, a non-black rubber (side wall) that is vulcanized together with the rubber support and is present in at least a part of the rubber support, and the non-black rubber It discloses a phosphor tire side wall comprising a phosphor layer present on the outer surface, the phosphor layer containing almost no fluorescent material and no rubber.

Accordingly, it is disclosed that a small amount of phosphorescent material can be used, and as a result, an inexpensive safety tire can be provided.

(B) <Luminous tire with electroluminescent body>

A conventional luminescent tire provided with an electroluminescent body is formed by embedding or bonding an electroluminescent body made of a semiconductor light emitting element such as a light emitting diode or an electroluminescent element.

Light emitting tires equipped with such an electroluminescent body are disclosed in, for example, Patent Document 8 to Patent Document 11.

For example, Patent Document 8 (Patent Publication No. 1-103502) discloses a battery or a generator that embeds a light emitting diode (LED) in a road contact portion of a tire, that is, a tread portion, and supplies electric energy to the LED. An “illuminating light tire” is disclosed in which a power source is arranged on a wheel cover and an LED and a power source are connected by a lead wire (feed wire).

For example, in Patent Document 9 (US Pat. No. 6,798,140) issued on Sep. 28, 2004, an electroluminescence lamp, a driving device that lights the electroluminescence lamp, and a battery that supplies power to the driving device are disclosed. In addition, “tire having an electroluminescent device”, which includes a power source such as a piezoelectric body and improves visibility of a vehicle in a dark place, is disclosed.

In this document, an electroluminescent lamp consisting of a thin sheet, panel, or wire is arranged on a rubber patch attached to a tire sidewall, and the electroluminescent lamp is a logo, trademark or decoration. It is described that it can be made into this shape.

For example, in Patent Document 10 (Patent Publication No. 2005-227752 Publication) and Patent Document 11 (US Patent Publication No. 20050134475) corresponding to this Patent Publication 10 issued on June 23, 2005, there are a plurality of tires on a vehicle. A system for providing illumination by providing a point light source (LED or OLED operating at one or more wavelengths) is disclosed.

(Stress light emitter)

The “stress luminescent material” that can be used in the present invention is described below.

Conventionally, stress luminescence having stress luminescence (stress luminescence, stress emission) that emits light reversibly upon application of stress such as friction, impact, compression, bending, and tension, mechanical stimulation, and mechanical energy. The body is known.

The term “stress luminescence” (stress luminescence) includes triboluminescence and mechanical luminescence (mechano-luminescence).

Such stress-stimulated luminescent materials are described in, for example, Patent Documents 12 to 29.

Patent Document 12 (Japanese Patent Laid-Open No. 11-120801), the name of the invention “Inorganic thin film that emits light by force and its manufacturing method”, Patent Document 9 (Japanese Patent Laid-Open No. 11-263970), the name of the invention “Light-emitting material, "Manufacturing method and light emitting method using the same", Patent Document 10 (US Pat. No. 6,117,574, October 26, 2004), title of the invention "triboluminescent inorganic thin film and manufacturing method thereof" "Triboluminescent organic material and" a method for preparation theleof "is added with one or more emission centers of rare earths or transition metals to a base material composed of one or more of inorganic piezoelectric oxides, sulfides, carbides and nitrides of wurtzite structure Powder, bulk, thin film, etc., from the outside Frictional forces, the light emitter is disclosed which emits light by mechanical energy of stress or the like.

Patent Document 13 (Japanese Patent Laid-Open No. 2000-063824), title of the invention “stress luminescent material and method for producing the same” and Patent Document 14 corresponding to Patent Document 13 (US Pat. No. 6,117,574, October 26, 2004) ), “Stress luminescent material and manufacturing method thereof”, “stress luminescent material and manufacturing method thereof” and “stress emission material and its manufacturing method” include friction force, shear force, impact force, pressure, etc. The present invention provides a new type of stress-stimulated luminescent material that emits light efficiently due to mechanical external force of a material different from those known so far, and includes oxides, sulfides, carbides, and nitridings of FeS2 structure. For the base material consisting of one or more kinds of materials, for mechanical energy Therefore, a stress-stimulated luminescent material is disclosed in which the luminescence intensity formed by adding one or more emission centers of rare earths or transition metals that emit light when excited electrons return to the ground state exhibits stress dependence.

Patent Document 14 (Japanese Patent Application Laid-Open No. 2001-049251), title of the invention “High-intensity light-emitting material, method for producing the same, and light-emitting method using the same” and Patent Document 15 corresponding to Patent Document 14 (US Pat. No. 6,280,655), The title of the invention “High brightness stress luminescent material” “HIGH-LUMINOCITY STRESS-LUMINESCENT MATERIAL” is composed of an alkaline earth metal oxide and an aluminum oxide, and the composition ratio of the alkaline earth metal ions therein A high-luminance luminescent material that is deficient in alkaline earth metal deficiency is disclosed.

Patent Document 16 (Japanese Patent Laid-Open No. 2001-2373317), the name of the invention “stress luminescent material and its manufacturing method”, emits light efficiently by mechanical stimulation such as frictional force, shearing force, impact force, pressure, etc. Therefore, one or more emission centers of rare earths or transition metals that emit light when electrons excited by mechanical energy return to the ground state are added to the base material made of one or more of the oxides of the melilite structure. As for the stress-stimulated luminescent material, the luminescent intensity of which the luminescence intensity exhibits stress dependence is disclosed.

Patent Document 17 (Japanese Patent Application Laid-Open No. 2005-320425), the title of the invention “stress luminescent composite material transparent in the visible light region, water-resistant stress luminescent inorganic particles, and production methods thereof, and use thereof” By applying an appropriate surface treatment to the stress-stimulated inorganic particles whose particle size is less than or equal to the wavelength of visible light, it is possible to disperse uniformly in the polymer material, thereby making it transparent in the visible light region. Stress-luminescent composite materials and stress-luminescent inorganic particles imparted with water resistance by surface treatment are disclosed.

In Patent Document 18 (Japanese Patent Application Laid-Open No. 2006-022455), the name of the invention “Sheet-like Stress-Luminescent Structure Containing Stress-Luminescent Material and Use thereof”, stress is concentrated on the fine particles of stress-luminescent material in the sheet The sheet-like stress light-emitting structure further improves the luminous efficiency of the stress light-emitting material fine particles. In the sheet-like stress light-emitting structure, the bonding agent containing the stress light-emitting material fine particles and the bonding agent are provided. A stress-stimulated luminescent structure is disclosed that includes a microstructure having a large elastic modulus to concentrate the stress on the stress-stimulated luminescent material particles in the sheet, thereby further improving the luminous efficiency of the stress-stimulated luminescent material particles. Yes.

Patent document 19 (Japanese Patent Laid-Open No. 2005-075838), the name of the invention “light emitting material and light emitting material utilization apparatus using the same” includes MNb 2 O 6 (M is a group of Mg, Ca, Sr, Co, respectively) Using an oxide with a columbite structure represented by at least one selected metal element), external stresses such as friction, shear, and pressure are efficiently and instantaneously converted into visible light, and high chemistry A stress-stimulated luminescent material that has mechanical stability and emits light by mechanical stress such as vibration and friction that can be used in high temperatures, oxidizing atmospheres, outdoors and in water is disclosed.

This stress-stimulated luminescent material instantaneously converts mechanical external stress into visible light and can emit light efficiently.

The conventional stress light-emitting material disclosed in Patent Document 11 (Japanese Patent Laid-Open No. 2000-063824) or the like includes vibration and friction in the specification 0002 stage of Patent Document 20 (Japanese Patent Laid-Open No. 2005-075838). As materials that emit light when mechanical stress such as these are applied, sulfide-based and aluminate-based phosphors containing light-emitting ions such as rare earth, copper, and bismuth are known. However, it is described that these luminescent materials have problems such as a lack of chemical stability of luminescent ions or a base material and a long afterglow time.

The specification 0020 stage of Patent Document 21 (Japanese Patent Laid-Open No. 2005-075838) has the advantage that the phenomenon of the time can be accurately sensed because the base material has no afterglow. It is also described that it has high chemical stability and can be used at high temperatures, in an oxidizing atmosphere, outdoors and in water.

Patent Document 22 (Japanese Patent Laid-Open No. 2004-71511), title of invention “optical waveguide, optical waveguide device, mechanical optical device, detection device, information processing device, input device, key input device, and fiber structure” and Patent Document 22 And corresponding patent document 23 (US Patent Publication No. 20040120684), title of invention "optical waveguide, optical waveguide device, mechanical optical device, detection device, information processing device, input device, key input device, and fiber structure" Optical waveguide, optical waveguide apparatus, optomechanical apparatus, detecting apparatus, information processing apparatus, input inappapatient "ratus, and fiber structure" provides an optical waveguide, an optical waveguide device, a mechanical optical device, a detection device, an information processing device, an input device, a key input device, and a fiber structure that are flexible and can be easily applied to a large area. The optical fiber is crossed and bonded, and a stress luminescent material is included in the intersection, and the stress luminescent material is provided in the clad of the optical fiber. As the stress luminescent material, for example, SrAl ₂ O ₄ : Eu It is disclosed that a composite material with polyester is used and that these optical fibers constitute a key input device.

Patent Document 24 (Japanese Patent Laid-Open No. 2004-137351), the title of the invention “Composite Material, Artificial Luminous Skin, and Artificial Luminous Body” and Patent Document 22 corresponding to Patent Document 22 (US Pat. No. 6,932,920), The title of the invention “Composite material, artificial luminescent skin and artificial luminescent body” “Complex material, artificial light-emitting skin and artificial light-emitting body” easily emits light even if a person touches it with hands or fingers. And a composite material capable of causing light emission only when touched, and a flexible material having a Young's modulus of less than 10 MPa and particles 11 such as SrAl ₂ O ₄ : Eu particles that emit light by stress. Elastic body, for example silico Ngomu, synthetic rubber, it is disclosed to form a composite material due to natural rubber, the use of this composite material as the artificial light-emitting skin or artificial light-emitting body is disclosed.

Patent Document 25 (Japanese Patent Application Laid-Open No. 2005-300587), the title of the invention “stress light emitting element”
Provides light-emitting sticks (light-emitting elements) such as emergency supplies, display light sources, light-emitting toys, etc. that do not use power supplies, fuel, and chemiluminescent materials. Disclosed is a stress light emitting stick (stress light emitting element, stress light emitting rod) that emits light by applying a force to the end, with light emission provided on the surface and inside of the (stick, long member), and preferably a weight at the end. Has been.

The inventor of the invention described in Patent Document 25 is the same person as the inventor of the present invention.

For example, the end of the luminous rod is enlarged to make it a spherical weight, and if the whole is made of rubber, it is very safe and even children can handle it with peace of mind. Both the weight and luminous rod are transparent and translucent inside It is disclosed that a rod can be made into a U-shape or a tuning-fork type, in which a weight is also shined when a powder of stress-stimulated luminescent material is added.

Patent Document 26 (Japanese Patent Application Laid-Open No. 2005-322421) and the title of the invention “Stress Light Emitting Element and Stress Light Emitting Device” provide a light emitting element that emits light without using a power source, fuel, or chemiluminescent material. In addition, a light-transmitting wall member (or capsule) such as a sphere having a space surrounded by walls and shells, one or more particulate members movably disposed in the space, a wall member, and / or There is disclosed a stress-stimulated light-emitting element comprising a stress-stimulated luminescent material that emits light by mechanical stimulation (giving mechanical energy) contained in a particulate member.

The inventor of the invention described in Patent Document 26 is the same person as the inventor of the present invention.

Further, for example, by fixing the grip to the stress light emitting element, manually gripping the grip and swinging or turning the stress light emitting element left and right, the particulate members or the particulate member and the wall member collide or rub against each other, It is disclosed that the stress light emitting element blinks and emits light L by this mechanical stimulation and is emitted from the light transmissive wall member.

In order to give mechanical stress to the stress light emitting element, it is disclosed that an artificial mechanical energy applying means such as a piezoelectric vibrator is used in addition to manual operation.
Japanese Patent Application Laid-Open No. 8-318715, title of invention “tires for automobiles” Japanese Patent Application Laid-Open No. 10-000907, title of invention “tire, wheel, vehicle, and manufacturing method” Japanese Patent Laid-Open No. 2000-185528, title of invention “tire” US Pat. No. 6,807,995 Patent Publication, October 26, 2004, Title of Invention “Pneumatic Tire Using Long Luminescent Phosphorescent Rubber Composition” “Pneumatic tire using long afterphosphor rubber composition” Japanese Patent Application Laid-Open No. 2003-04902, title of invention “Rubber composition and tire and hose made of the rubber composition” Japanese Patent Laid-Open No. 2003-118297, title of invention “transfer print and tire to which it is attached” US Pat. No. 6,807,995 Patent Publication, October 26, 2004, Title of Invention “Sidewall of Luminous Tire” “Glow-in-the-dark tire sidewalls” (Patent Publication No. 1-103502) US Pat. No. 6,798,140, issued September 28, 2004 Japanese Patent Publication No. 2005-227752 Published in US Patent Publication No. 20050134475, June 23, 2005 Japanese Patent Application Laid-Open No. 11-120801, title of invention “Inorganic thin film that emits light by force and manufacturing method thereof” Japanese Patent Application Laid-Open No. 11-263970, title of invention “Luminescent material, method for producing the same, and luminescent method using the same” US Pat. No. 6,117,574, October 26, 2004, title of invention “triboluminescent inorganic thin film and method for producing the same” “Triboluminescent organic material and method for preparation theof” Japanese Patent Laid-Open No. 2000-063824, title of invention “stress luminescent material and method for producing the same” US Pat. No. 6,117,574, October 26, 2004, title of invention “Friction Luminescent Inorganic Thin Film and Method for Producing the Same” “Stress emission material and its manufacturing method” Japanese Patent Application Laid-Open No. 2001-049251, title of invention “High-intensity light-emitting material, method for producing the same, and light-emitting method using the same” U.S. Pat. No. 6,280,655 patent title, invention name “high brightness stress luminescent material” “HIGH-LUMINOCITY STRESS-LUMINESCENT MATERIAL” Japanese Patent Application Laid-Open No. 2001-2373317, title of invention “stress luminescent material and manufacturing method thereof” Japanese Patent Application Laid-Open No. 2005-320425, title of invention “stress luminescent composite material transparent in visible light region, water-resistant stress luminescent inorganic particles, production method thereof, and use thereof”

Japanese Patent Application Laid-Open No. 2006-022455, title of invention “sheet-like stress-stimulated luminescent structure including stress-stimulated luminescent material and use thereof” Japanese Patent Application Laid-Open No. 2005-075838, title of invention “Luminescent Material and Luminescent Material Utilizing Device Using the Same” Japanese Patent Application Laid-Open No. 2004-71511, Title of Invention “Optical Waveguide, Optical Waveguide Device, Mechanical Optical Device, Detection Device, Information Processing Device, Input Device, Key Input Device, and Fiber Structure” U.S. Patent No. 20040120684 Patent Publication, Name of Invention Optical Waveguide, Optical Waveguide Device, Mechanical Optical Device, Detection Device, Information Processing Device, Input Device, Key Input Device, and Fiber Structure "" Optical waveguide apparatus, optical mechanical apparatus " , Detecting apparatus, information processing apparatus, input apparatus, key-input apparatus, and fiber structure ” Japanese Patent Application Laid-Open No. 2004-137351, Title of Invention “Composite Material, Artificial Luminous Skin, and Artificial Luminous Body” US Pat. No. 6,932,920, title of invention “Composite material, artificial luminescent skin and artificial luminescent body” “Complex material, artificial light-emitting skin and artificial light-emitting body” Japanese Patent Application Laid-Open No. 2005-300587, title of invention “stress light emitting device” Japanese Patent Application Laid-Open No. 2005-322421, title of invention “stress light emitting element and stress light emitting device”

The problems of (A) <Luminous tire with phosphorescent body> are as follows.

In order to cause the phosphor to emit afterglow light, it is basically necessary to irradiate excitation light such as sunlight for a predetermined time.

For example, in the case where the “phosphorescent material” described in Patent Document 1 to Patent Document 7 is provided in at least a part of a tire of a vehicle such as an automobile or a bicycle, a short-wavelength light such as an ultraviolet ray slightly contained in sunlight is predetermined. It is essential to irradiate with time (excitation saturation time).

And there exists a big fault that afterglow light emission stops after the predetermined time (afterglow time) after the excitation saturation time progresses.

Even during daytime, when sunlight is applied to the phosphor for the saturation time of the phosphor, enough time for the vehicle to travel on rainy, cloudy days or at night will be limited by the phosphor's afterglow time. .

When driving a vehicle after it has been parked for a long time in a dark place or in a dark place, sufficient light energy is not accumulated in the phosphor stored in the tire, so the afterglow time of the phosphor further decreases. In addition, the afterglow brightness is lowered.

The above-mentioned (B) <Luminous tire with an electroluminescent body> problems are as follows.

In order to emit an electroluminescent body such as a light emitting diode (LED) and an electroluminescent panel (EL), a power source for supplying driving power to the electroluminescent body is basically required.

For example, in the case where the “electroluminescent body” described in Patent Document 8 to Patent Document 11 is provided in a tread portion or a sidewall portion of a vehicle tire such as an automobile or a bicycle, the tire is constantly applied to the tire when the vehicle travels. Generally receives non-directional omni-directional vibration and / or non-directional deformation, and at the same time, at least the LED, EL, etc. provided on the tire breaks, fatigues or breaks away from the tire There is a problem that causes.

In addition, the battery that supplies electrical energy to the electroluminescent body, the power source of the generator, the drive device that drives the electroluminescent body, and the lead wires that connect the electroluminescent body and the drive device are attached to tires, wheels, etc. There are many problems that tires, wheels, etc. receive vibrations and / or deformations when the vehicle is traveling, and the power supply, driving device, and lead wires are broken, fatigued, or broken easily from the tires accordingly.

Furthermore, it is difficult to attach the electroluminescent body to the tread portion or sidewall portion of the tire.

A luminescent tire provided with an electroluminescent body has a large number of parts for an electronic device including an electroluminescent body, a power source, a lead wire, and the like, resulting in an increase in cost.

One object of the present invention is to eliminate the above-mentioned problem (A) <Light-emitting tire with a phosphorescent body>.

Another object of the present invention is to eliminate the above-mentioned problem (B) <Luminous tire with electroluminescent body>.

In order to achieve the above object, the light-emitting tire of the present invention is one in which “stress light-emitting body” is disposed in at least a part (one place) of the tire.

In the present invention, basically, a stress illuminant (including a frictional illuminant) that emits light reversibly by mechanical stimulation or a stress generated when the tire is elastically deformed or vibrated at all times when the vehicle travels is actively used. This is a stress light emitting tire having self-luminous property.

The light-emitting tire of the present invention includes an elastic tire and a stress-stimulated luminescent material that emits light reversibly when mechanical stress is applied to at least a part of the tire.

One aspect of the present invention is a rubber tire comprising a tread (grounding portion) and a sidewall (side wall), and a stress illuminant that reversibly emits light by applying mechanical stress disposed on at least a part of the sidewall. This is a light emitting tire.

Another aspect of the present invention is reversible by applying a tread having at least one road surface contact portion and at least one groove, a rubber tire comprising a sidewall, and mechanical stress disposed in at least a part of the groove. A light emitting tire comprising a stress luminescent material that emits light.

According to another aspect of the present invention, there is provided a tread having at least one road surface contact portion and at least one groove, a rubber tire made of a sidewall, and mechanical stress placed on at least a part of the road surface contact portion. A light-emitting tire made of a stress-stimulated luminescent material that emits light reversibly.

Some preferred embodiments (side wall light emitting tires) of the present invention are as follows.

A preferable side wall light emitting tire includes a rubber tire composed of a tread and a side wall, and a stress light emitting member that emits light reversibly when mechanical stress is applied to at least a part of the side wall. The light emitting member is composed of a light transmissive rubber and a plurality of stress luminescent particles contained in the light transmissive rubber.

A preferable other side wall light emitting tire includes a rubber tire composed of a tread and a side wall, and a stress light emitting member that emits light reversibly by applying mechanical stress disposed on at least a part of the side wall, The stress-stimulated luminescent member is a laminate composed of a light-emitting rubber layer containing a plurality of stress luminescent particles in a light-transmitting rubber and a reflective rubber layer containing a plurality of reflectors in the light-transmitting rubber.

A preferable other side wall light emitting tire includes a rubber tire composed of a tread and a side wall, and a stress light emitting member that emits light reversibly by applying mechanical stress disposed on at least a part of the side wall, The stress-stimulated luminescent member is a laminate composed of a light-emitting rubber layer containing a plurality of stress luminescent particles in a light-transmitting rubber and a reflective rubber layer containing a plurality of reflectors in the light-transmitting rubber.

Other preferable sidewall light emitting tires are at least one of a rubber tire composed of a tread and a sidewall, a stress light emitter that emits light reversibly when mechanical stress is applied, and the sidewall colored in black. It is made of at least one non-black rubber member colored in white or chromatic color and embedded in the part, and the stress-stimulated luminescent material is arranged in at least a part of the exposed part of the non-black rubber member.

Other preferable side wall light emitting tires include a rubber tire made of a tread and a side wall, a stress light emitter that emits light reversibly when mechanical stress is applied, and the stress light emitter is used as a light-transmitting rubber member. It comprises at least one light emitting rubber member contained, and the light emitting rubber member is embedded and disposed so as to expose a light emitting surface in at least a part of the sidewall.

Some preferred embodiments (tread light emitting tires) of the present invention are as follows.

The tread light emitting tire according to a preferred embodiment of the present invention is reversible by applying a mechanical tire disposed in at least a part of at least one groove formed in the tread and a rubber tire including a tread and a sidewall. The stress light emitting member is composed of a light transmitting rubber and a plurality of stress light emitting particles contained in the light transmitting rubber.

Another tread light emitting tire according to a preferred embodiment of the present invention includes a rubber tire composed of a tread and a sidewall, and mechanical stress applied to at least a part of at least one groove formed in the tread. Reflective rubber comprising a stress light-emitting member that emits light reversibly, wherein the stress light-emitting member includes a light-emitting rubber layer containing a plurality of stress light-emitting particles in a light-transmitting rubber and a plurality of reflectors in the light-transmitting rubber. It is a laminate composed of layers.

Another tread light emitting tire according to a preferred embodiment of the present invention includes a rubber tire composed of a tread and a sidewall, and mechanical stress applied to at least a part of at least one groove formed in the tread. Reflective rubber comprising a stress light-emitting member that emits light reversibly, wherein the stress light-emitting member includes a light-emitting rubber layer containing a plurality of stress light-emitting particles in a light-transmitting rubber and a plurality of reflectors in the light-transmitting rubber. It is a laminated body composed of layers, and the laminated body is embedded in at least the bottom of the groove.

Another tread light emitting tire according to a preferred embodiment of the present invention includes a rubber tire composed of a tread and a sidewall, and mechanical stress applied to at least a part of at least one groove formed in the tread. A stress light-emitting member that emits light reversibly, and the stress light-emitting member includes a light-transmitting rubber and a plurality of stress-light-emitting particles contained in the light-transmitting rubber, and at least a part of the plurality of stress-light-emitting particles. Exists at a position lower than at least the depth of the friction limit of the groove.

Another tread light-emitting tire according to a preferred embodiment of the present invention includes a tread having at least one road surface contact portion and at least one groove, a rubber tire made of a sidewall, and at least a part of the road surface contact portion. It consists of a stress light emitter that emits light reversibly upon application of mechanical stress.

Another tread light-emitting tire according to a preferred embodiment of the present invention includes a tread having at least one road surface contact portion and at least one groove, a rubber tire made of a sidewall, and at least a part of the road surface contact portion. The stress light-emitting member that emits light reversibly upon application of mechanical stress is disposed, and the stress light-emitting member includes a light-transmitting rubber and a plurality of stress-light-emitting body particles contained in the light-transmitting rubber.

Another tread light-emitting tire according to a preferred embodiment of the present invention includes a tread having at least one road surface contact portion and at least one groove, a rubber tire made of a sidewall, and at least a part of the road surface contact portion. The stress-stimulated light-emitting member that reversibly emits light when applied with mechanical stress is disposed. The stress-stimulated light-emitting member includes a light-transmitting rubber and a plurality of stress-stimulated luminescent particles contained in the light-transmitting rubber. The member is embedded in the contact portion so that the light emitting surface is exposed.

Another tread light-emitting tire according to a preferred embodiment of the present invention includes a tread having at least one road surface contact portion and at least one groove, a rubber tire made of a sidewall, and at least a part of the road surface contact portion. It is composed of a stress-stimulated light-emitting member that emits light reversibly upon application of mechanical stress. It is a laminate comprising a reflective rubber layer contained in a permeable rubber.

Another tread light-emitting tire according to a preferred embodiment of the present invention includes a tread having at least one road surface contact portion and at least one groove, a rubber tire made of a sidewall, and at least a part of the road surface contact portion. It is composed of a stress light emitting member that reversibly emits light by applying an embedded mechanical stress, and the stress light emitting member is composed of a light transmitting rubber and a plurality of stress light emitting particles contained in the light transmitting rubber. At least a part of the stress-stimulated luminescent particles is present at a position lower than at least the friction limit depth of the groove.

A light-emitting tire according to another preferred embodiment of the present invention is reversible by applying a rubber tire composed of a tread and a sidewall, and mechanical stress disposed on at least a part of the tread and at least a part of the sidewall. It consists of a stress luminescent material that emits light.

A light emitting member for rubber and tire according to a preferred embodiment of the present invention is a light emitting member for rubber and tire that includes a stress light emitting body that emits light when mechanical stress is applied and is fixed to at least a part of the rubber tire. .

A light emitting member for rubber and tire according to another preferred embodiment of the present invention comprises a light emitting rubber member containing a plurality of stress light emitting particles that emit light when mechanical stress is applied to a light transmissive rubber. It is a light emitting member for rubber and tire for fixing to at least a part.

A light emitting member for rubber and tire according to another preferred embodiment of the present invention comprises a laminate composed of a light emitting layer containing a stress light emitting body that emits light upon application of mechanical stress and a reflective layer, and is provided with at least one of rubber and tire. It is the light emitting member for rubber | gum and tire for fixing to a part.

A light emitting member for rubber and tire according to another preferred embodiment of the present invention includes a light emitting rubber member containing a plurality of stress light emitting particles that emit light by applying mechanical stress to the light transmitting rubber, and a light transmitting rubber. It is a light emitting member for rubber and tire that includes a laminate composed of a reflecting member containing a plurality of light reflecting materials and is fixed to at least a part of the rubber and tire.

The present invention positively utilizes the stress applied to the tire during traveling of any vehicle having at least one tire such as an automobile, bicycle, truck, bus, etc., and causes the stress light emitter to emit light by this stress. is there.

According to the present invention, a stress illuminator attached to at least a part of an elastic tire emits visible light and emits it to the outside by a force such as deformation or vibration received by an elastic tire such as a rubber tire when the vehicle is traveling.

The visible display by self-emission from the stress illuminant is visually recognized by a person such as a pedestrian such as an automobile such as an automobile, an automobile or a bicycle, or a driver of a vehicle of another vehicle.

This visual display improves traffic safety and exhibits decorative effects, illumination effects, fashion effects, advertising effects, and the like.

Examples of the material of the “stress luminescent material” that reversibly emits visible light upon application of stress that can be used in the present invention include the stress luminescent materials described in the above-mentioned Patent Documents 12 to 29. .

In the present invention, the material of the “stress luminescent material” is not limited to the stress luminescent material described in Patent Document 12 to Patent Document 29, etc., and any stress luminescent material that emits light reversibly upon application of stress. Can be used.

Various embodiments of the present invention will be described below with reference to FIGS.

1 to 27, the same components and the same parts are denoted by the same reference numerals.

In the first aspect of the light-emitting tire of the present invention, “stress light-emitting body” is arranged on at least a part (one place) of the side wall (side wall) of the tire, and some of the embodiments embody it. Embodiments are described below with reference to FIGS.

In the second aspect of the light emitting tire of the present invention, “stress light emitter” is disposed in at least a part (one place) of the groove of the tread of the tire, and some embodiments embodying it are as follows. This will be described below with reference to FIGS.

In the third aspect of the light-emitting tire of the present invention, “stress light-emitting body” is disposed on at least a part (one place) of the road surface contact surface of the tread of the tire, and some embodiments embodying the same are described. Is described below with reference to FIGS.

<Tire with stress light-emitting members on the tread sidewall>

The first to ninth embodiments of the present invention described below are embodiments in which a stress light emitting member is disposed on a sidewall of a tire.

<First embodiment of the present invention>

A first embodiment of the present invention will be described with reference to FIGS.

FIG. 1 is a conceptual elevation view showing a diamond assembly (diamond assembly) in which a stress light emitting diamond according to a first embodiment of the present invention is attached to a rim as a cross section, cut along a line AA in FIG. is there.

FIG. 2 is a conceptual elevation showing an enlarged cross-sectional view of the stress light-emitting diamond shown in FIG.

FIG. 3 is a conceptual perspective view of the stress light emitting diamond shown in FIGS. 1 and 2.

FIG. 4 is a conceptual cross-sectional view showing an enlarged vicinity 18 of the stress-stimulated light emitting member attached to the stress diagram shown in FIG.

Referring to FIGS. 1 to 3, a known general tubeless tire 10 basically includes a carcass (framework) 13, a tread (grounding portion) 11 (11 a), sidewalls (sidewalls) 12, and the like. The belt 16 includes an inner liner 16 and a pair of left and right beads 14.

The carcass, that is, the carcass cord 13 is a skeleton of the tire 10 made of a synthetic fiber cord.

The tread 11 (11a) is made of rubber that is resistant to abrasion at the portion that contacts the road surface and the ground. The tread 11 is provided with a plurality of grooves 11b.

The sidewall 12 is a portion of the side surface of the tire 10 and is made of rubber that is strong against expansion and contraction that vertically expands and contracts and serves as a cushion.

The belt 16 connects the carcass 13 and the tread 11 and is made of synthetic fiber or steel wire and rubber, and reinforces the whole.

The inner liner 15 is a rubber layer formed on the inner side of the tire 10 and is in contact with the air filled in the tire to hold the air.

The bead 14, that is, the annular bead core, fixes both ends of the carcass 13 and prevents a plurality of reinforcing beads that come into contact with the edge 20 b of the rim 20 in order to prevent the wheel 21 from coming off from the rim (rim) 20. It is a pair of left and right bundles of bead wires (steel wires).

In the tubeless tire 10, a pair of beads 14 are in contact with a pair of left and right edges 20 b of the rim 20, and a rim-well that is the bottom of the inner liner 15 of the tire 10 and the center recess of the rim 20. The air 17 is press-fitted and filled in an internal space formed by the inner surface 20a of the tire, and the tire 10 is kept in an expanded state by the pressure of the air.

Referring again to FIGS. 1 to 3, in the first embodiment of the present invention, the stress light emitting member 100 is disposed outside the sidewall 12.

As shown in FIG. 3, in the first embodiment of the present invention, the pattern shape of the stress-stimulated light emitting member 100 is a ring-shaped pattern that continuously extends in a ring shape.

In the present embodiment, the stress-stimulated luminescent member 100 is composed of a stress-stimulated luminescent sheet or a stress-stimulated luminescent film containing the “stress luminescent material” described in, for example, Patent Document 12 to Patent Document 29 described above.

As shown in FIG. 4, in the present embodiment, the stress-stimulated light emitting member 100A is generally a ring-shaped non-black chromatic color with high brightness, for example, white, formed on the sidewall 12 of the black achromatic tire 10. It is a laminate comprising a non-black layer 120 that preferably contains a light reflecting material, and a stress light-emitting film 110 formed on the non-black layer 120.

The non-black layer 120 and the stress light emitting film 110 preferably contain a light-transmitting rubber-like elastic body such as a transparent rubber or a translucent rubber in order to withstand and resist deformation and vibration applied to the tire. ,

Examples of the material of the light-transmitting rubber-like elastic material that can be used in the present invention include natural rubber (NR), butadiene rubber (BR), neoprene rubber, chloroprene rubber (CR), styrene-butadiene rubber (SBR), isoprene. Rubber (IR), ethylene-propylene-diene rubber (EPDM), chloroprene rubber (CR), acrylonitrile-butadiene rubber (NBR), silicone rubber, acrylic rubber, urethane rubber, ethylene / propylene rubber, fluororubber, polystyrene elastomer, polyurethane There are synthetic rubbers such as elastomers and polybutadiene elastomers, elastomers, etc., or two or more of these substances can be mixed.

When an additive such as a vulcanizing material is added to the material of the light-transmitting rubber elastic body, it is desirable to use a material that does not lower its original transparency for vulcanization and curing.

The stress-stimulated light emitting member 100A shown in FIG. 4 is a non-black, non-black, high-lightness achromatic or high-lightness, such as white, which extends continuously in a ring shape on the side wall 12 of the normally black achromatic tire 10, for example. A rubber-based paint containing a light-transmitting rubber-like elastic body is applied to the colored light-reflecting material, and a rubber-based binder made of the light-transmitting rubber-like elastic body is formed on the light-reflecting coating film (non-black layer) 120. The stress luminescent film 110 may be formed by applying a stress luminescent paint in which a plurality of stress luminescent particles are dispersed.

The average particle size of the stress-stimulated luminescent particles contained in the stress-stimulated luminescent film 110 is, for example, about 1 micrometer to 100 micrometers, and usually about 1 micrometer. Although it is about 10 micrometers (micro-meter), it is not limited to this.

The mixing amount of the stress-stimulated luminescent particles into the rubber elastic body (after vulcanization) is preferably 1 to 95 weight percent (wt /%).

The higher the content of the stress-stimulated luminescent particles, the higher the brightness. However, when the content exceeds 95 weight percent (wt /%), the rubber elasticity decreases. On the other hand, when the content of the stress-stimulated luminescent particles is less than 1 weight percent (wt /%), the rubber elasticity is improved, but sufficient light emission luminance cannot be obtained.

The stress luminescent particles are set in consideration of various conditions such as tire deformation, vibration followability, weather resistance, durability and stress luminescent brightness of the stress luminescent film 110, and cost. 5-50 weight percent (wt /%) is more preferable, and 10-20% weight percent (wt /%) is most desirable.

The stress light emitting member 100A (the light reflecting coating film 120 and the stress light emitting film 110) is composed of a rubber-based paint of the above-described light-reflecting paint and stress-luminescent paint, and an unvulcanized or semi-vulcanized material containing a vulcanized material as a rubber-based binder. It is desirable to vulcanize after forming the sidewall 12 using the rubber.

An uncured and semi-cured light reflecting coating film 120 is formed on the sidewall 12 and then vulcanized, and an unvulcanized and semi-cured stress light emitting film 110 is formed on the vulcanized light reflecting coating film 120 by coating. It may be vulcanized and integrated later.

The uncured and semi-cured light reflecting coating film 120 and the uncured and semi-cured stress light emitting film 110 may be coated on the sidewall 12 and then vulcanized.

As a result, a stress-stimulated light emitting member 100A having the elasticity in which the light reflection coating film 120 and the stress-stimulated light emitting film 110 are integrated is obtained, and the stress-stimulated light emitting member 100A is firmly integrated with the sidewall 12.

By vulcanizing the light-reflecting coating film 120 and the stress-emitting film 110 in this way, stress emission that can follow the elastic deformation and vibration of the rubber sidewall 12 that is greatly elastically deformed and vibrates when the vehicle is traveling. The member 100A is obtained.

As the light reflecting material contained in the light reflecting coating film (non-black layer) 120, non-black pigments such as white pigments and chromatic pigments, or light reflections such as beads made of glass or transparent plastic, aluminum, silver, etc. Metal particles are used.

Instead of using the light reflection coating film 120 and the stress light emission coating film 110, a stress light emission sheet 110 in which the stress light emission coating film 110 is previously formed on the light reflection sheet 120 is prepared, and the stress light emission sheet 110 is unvulcanized, A rubber adhesive may be vulcanized by sticking to the sidewall 12 using a semi-vulcanized rubber adhesive.

As the light reflecting sheet 120, it is desirable to use a re-regressive reflecting sheet in which a large number of high refractive index glass and plastic beads are arranged adjacent to a reflecting layer such as aluminum.

Such a retro-reflective (retro-reflective) sheet is commercially available, for example, as “Scotchlite” (registered trademark) reflective sheet from Sumitomo 3M Limited and US 3M Limited.

Instead of using the light reflecting coating film 120 and the stress light emitting coating film 110, an unvulcanized pre-vulcanized or semi-cured light reflecting film 120 and an unvulcanized or semi-cured stress light emitting film 110, A semi-vulcanized stress light-emitting sheet 110 is prepared. For example, a stress light-emitting sheet 110 having a shape such as a ribbon, a decorative piece, an applique, or a patch is attached to the surface of the side wall 12, and the unvulcanized or half-vulcanized sheet is attached. The stress-stimulated luminescent sheet 110 may be vulcanized and fixed.

An unvulcanized and semi-vulcanized stress light emitting sheet 110 comprising an unvulcanized and semi-cured light reflecting film 120 and an unvulcanized and semi-cured stress light emitting film 110 is previously unvulcanized and semi-vulcanized side. The stress light emitting sheet 110 and the side wall 12 may be simultaneously vulcanized after being laminated on the wall 12.

In any of the above-described methods, the stress-stimulated light emitting tire 10 can obtain a stress-stimulated light emitting member 100A that can follow elastic deformation and vibration of the sidewall 12 when the vehicle travels by vulcanizing.

Since the light emitted from the stress-stimulated luminescent film 110 is a non-directional scattered light, it is directed to the side wall 12 at the same time as it is emitted to the outside. Therefore, it is desirable to provide the light reflecting coating film 120, and the light reflecting coating film 120 is provided. It is useful for reflecting the light beam traveling in the direction of the sidewall 12 to be emitted to the outside.

However, the light reflection coating film 120 may be deleted for cost reduction.

Referring to FIGS. 1 and 2 again, when a vehicle such as an automobile or a truck mounted with the stress-stimulated tire 10 on the rim 20 of the wheel 21 travels, the stress-stimulated tire 10 has the rotating shaft 32 of the wheel 21. The stress-stimulated tire 10 moves while generating contact friction with the road surface and the ground 31.

When the vehicle travels, the rubber tire 10 is always elastically deformed and vibrated, and stresses such as vibration, friction, impact, compression, bending, and tension are applied not only to the tread 11 but also to the sidewall 12 and the stress light emitting member 100A.

Therefore, the stress light emitting member 100A attached to the sidewall 12 always emits light corresponding to the stress received by the rubber tire 10 when the vehicle travels.

When a stress luminescent material used for the stress luminescent member 100A that can be increased substantially in proportion to the strength of the stress is used, the tire 10 has an uneven shape on the road surface, water on the road surface, icing on the road surface, on the road surface. Lights up with brightness corresponding to road conditions such as snow.

The luminance of light emitted from the stress light emitting member 100A is abnormally changed and / or abnormally flashes (flashing) due to a tire failure such as abnormal wear of the tread 11 of the tire 10 or a decrease in air pressure of the tire 10.

As a result, the abnormality of the tire 10 can be visually warned. For example, the following vehicle sees this abnormal light emission to increase the inter-vehicle distance, the pedestrian and the bicycle pay attention to the abnormal light emission vehicle, Safety measures can be taken.

For example, the “phosphorescent material” described in Patent Document 1 to Patent Document 7 does not emit afterglow unless irradiated for a predetermined time with a short-wavelength light such as ultraviolet rays slightly contained in sunlight, so that the tire is always in motion. It is completely independent of the stress received.

For example, the “electroluminescent body” described in Patent Documents 8 to 11 includes a light emitting diode provided on a tire, an electroluminescent body such as an electroluminescence device, a power source such as a battery and a generator, a lead wire, and the like. Electronic devices are required, which tend to cause breakage, fatigue, or failure to break away from tires, etc., and increase costs.

In the present invention, a very simple “stress luminescent material that directly utilizes elastic deformation and vibration of a tire without using a“ phosphorescent material ”excited by light or an“ electroluminescent material ”that is weak against stress application. ”Can be used, can withstand the strong stress experienced by the tire, and can be provided at low cost.

<Second embodiment of the present invention>

The second embodiment of the present invention is a modification of the above-described first embodiment.

FIG. 5 is a conceptual side view of a stress light-emitting diamond showing a second embodiment of the present invention.

The second embodiment of the present invention differs from the first embodiment described above only in the pattern shape of the stress light emitting member attached to the sidewall 12, and the other parts are the same as those in the first embodiment described above. Therefore, for the description of the same parts as those of the first embodiment (reference numerals are the same as those in FIG. 3), refer to the first embodiment.

Referring to FIG. 5, in the light emitting tire according to the second embodiment of the present invention, a plurality of stress light emitting members 101 are provided at a plurality of locations along a sidewall 12 continuously extending in a ring shape of the conventional tire 10. It is attached.

At least one or a plurality of the stress light emitting members 101 emits light when the vehicle is traveling.

When the vehicle travels, the wheel 21 and the tire 10 rotate R, so that the observer appears to emit light in a continuous ring shape with an afterimage effect of human eyes.

<Third embodiment of the present invention>

The third embodiment of the present invention is a modification of the above-described first embodiment.

FIG. 6 is a conceptual side view of a stress light emitting diagram showing a third embodiment of the present invention.

The third embodiment of the present invention differs from the first embodiment described above only in the stress light emitting member attached to the sidewall 12, and the other parts are the same as in the first embodiment described above. Therefore, for the description of the same parts as those in the first embodiment (reference numerals are the same as those in FIG. 3), refer to the first embodiment described above.

Referring to FIG. 6, the light emitting tire according to the third embodiment of the present invention is a stress-stimulated luminescent material that exhibits an arbitrary pattern in at least one portion of sidewall 12 that continuously extends in a ring shape of conventional tire 10. It attaches to the stress light-emitting member containing.

In the example of the tire 10 shown in FIG. 6, the stress light emitting member 102 and the stress light emitting member 103 having an arbitrary pattern showing an arbitrary pattern such as a logo, a character such as a company name, or a decorative pattern are attached to the sidewall 12. It has been.

The stress light emitting member 102 includes a pattern region 102a and a background region 102b excluding the pattern region 102a, and at least the background region 102b includes a stress light emitter and becomes the stress light emitting region 102b.

For example, the pattern region 102a may be colored white or chromatic with high brightness.

The pattern region 102a may be made light-reflective by containing a light-reflective material such as aluminum particles and glass beads.

The pattern region 102 a may protrude from the stress light emission region 120 b and the sidewall 12.

The other stress light emitting members 103 are composed of a pattern region 103a and a background region 103b excluding the pattern region 103a, and at least the pattern region 103a includes a stress light emitter to become a stress light emitting pattern region 103a.

The background region 103b may be colored, for example, with a high whiteness or a chromatic color.

The background region 103b may be light reflective by containing a light reflective material such as aluminum particles or glass beads.

The pattern region 103 a may protrude from the background region 103 b and the sidewall 12.

Therefore, the stress light emitting member 102 emits light from the stress light emitting background region 102b when the tire 10 rotates. The stress light emitting member 103 emits light from the stress light emitting pattern region 103a.

Since the wheel 30 and the tire 10 rotate when the vehicle is traveling, the light emitted from the stress light emitting member 102 and / or the stress light emitting member 103 is emitted from the observer in a continuous ring shape with the addition of the afterimage effect of human eyes. Looks.

<Fourth embodiment of the present invention>

A fourth embodiment of the present invention will be described with reference to FIG.

FIG. 7 is a schematic enlarged cross-sectional view showing the stress light emitting member 100B, which is a modification of the stress light emitting member 100A shown in FIG.

As shown in FIG. 7, in the present embodiment, the stress-stimulated light emitting member 100B is generally a ring-shaped non-black chromatic color with high brightness, for example, white, formed on the sidewall 12 of the black achromatic tire 10. It is composed of a laminate composed of a non-black layer 120 preferably containing a light reflecting material, a stress light-emitting film 110 formed on the non-black layer 120, and a transparent or translucent light-transmitting layer 130.

Since the non-black layer 120 and the stress light emitting film 110 are the same as those in FIG. 4, refer to the above description for details.

The light transmissive layer 130 is preferably made of a light transmissive rubber, and the stress luminescent film 110 contained in the stress luminescent film 110 is protected from the external environment such as moisture such as rain and moisture to obtain weather resistance. Therefore, for example, in order to obtain crack resistance that protects the stress light emitting film 110 from being scratched by hitting a stepping stone, and to protect the stress light emitting film 110 from water, a cleaning agent, brushing, and the like during tire cleaning. Useful for obtaining detergency.

<Fifth embodiment of the present invention>

A fifth embodiment of the present invention will be described with reference to FIG.

FIG. 8 is a schematic enlarged sectional view showing the stress light emitting member 100C.

Referring to FIG. 8, the stress-stimulated light emitting member 100 </ b> C according to the fifth embodiment of the present invention is a white, high-lightness chromatic color embedded in at least a part of a sidewall 12 made of normal black rubber of the tire 10. Alternatively, it includes a non-black rubber layer 140 made of rubber containing light reflecting particles and a stress light emitting layer 110 formed on the non-black rubber layer 140.

In the present embodiment, the stress-stimulated luminescent layer 110 contains the “stress luminescent material” described in, for example, Patent Document 12 to Patent Document 29 described above.

As described above, the stress-stimulated luminescent layer 110 is preferably obtained by dispersing a plurality of stress-stimulated luminescent particles in transparent rubber as described above.

The stress-stimulated luminescent layer 110 of the present embodiment is the same as the stress-stimulated luminescent layer 110 shown in FIG. 4, so refer to the description in FIG.

Conventionally, tires provided with a non-black rubber layer such as white or chromatic color different from a normal black tire on at least a part of the sidewall in order to improve decoration, advertisement, fashion, etc. are well known and commercially available. Yes.

The non-black rubber layer shows, for example, a ring-shaped pattern such as a ribbon or a band, or a company name, a brand name, a logo, other marks, or a design.

Normally, a tire provided with a non-black rubber layer on the side wall of such a black tire is previously vulcanized and integrated together with the tire body at the time of tire manufacture.

In the fifth embodiment of the present invention, a conventional commercially available tire 10 in which a non-black rubber layer 140 such as white is provided on the sidewall 12 is used, and a stress light emitting layer 110 is formed by retrofitting to produce a stress light emitting member 100C. Can be produced.

In this case, the stress light emitting layer 110 can be easily retrofitted at an automobile repair shop or work place.

Normally, a tire provided with a non-black rubber layer on the side wall of such a black tire is previously vulcanized and integrated together with the tire body at the time of tire manufacture.

As described above, the stress-stimulated luminescent layer 110 is made of unvulcanized or semi-vulcanized transparent rubber in which a plurality of stress-stimulated luminescent particles are dispersed in advance as described above, such as white exposed on the sidewall 12 of the conventional commercially available tire 10. It is desirable to form a layer on the non-black rubber layer 140 and then integrate with the commercially available tire 10 by vulcanization.

When manufacturing a tire having the stress light emitting member 100C by a tire manufacturer, the black sidewall 12 made of unvulcanized raw rubber, an unvulcanized non-black rubber layer 140, and an unvulcanized transparent rubber are manufactured at the time of manufacture. Can be manufactured at once by laminating the stress-stimulated luminescent layer 110 containing the luminescent layer 110 in this order, and then simultaneously vulcanizing the black sidewall 12, the non-black rubber layer 140 and the stress-stimulated luminescent layer 110.

<Sixth Embodiment of the Present Invention>

A sixth embodiment of the present invention will be described with reference to FIG.

FIG. 9 is a schematic enlarged sectional view showing the stress light emitting member 100D.

Referring to FIG. 9, a stress light emitting member 100 </ b> D according to the sixth embodiment of the present invention is a modification of the fifth embodiment of the present invention, and the stress light emission of the stress light emitting member 100 </ b> C illustrated in FIG. 8. A light transmission protective layer 130 for protecting the stress-stimulated light emitting layer 110 is formed on the layer 110.

Since the light transmission protective layer 130 is the same as the light transmission protection layer 130 shown in FIG. 7, the description thereof is omitted here.

<Seventh embodiment of the present invention>

A seventh embodiment of the present invention will be described with reference to FIG.

FIG. 10 is a schematic enlarged sectional view showing the stress light emitting member 100E.

Referring to FIG. 10, a stress-stimulated light emitting member 100E according to a seventh embodiment of the present invention is a laminate composed of a light-reflecting rubber layer 120 and a stress-stimulated luminescent layer 110 in advance, and the laminates 120 and 110 transmit light. Embedded in the conductive rubber member 150.

Since the reflective layer 120 and the stress light emitting layer 110 are the same as the reflective layer 120 and the stress light emitting layer 110 shown in FIG. 4, their descriptions are omitted here.

The laminates 120 and 110 may be unvulcanized or vulcanized.

The laminated bodies 120 and 110 can be vulcanized after being embedded in the unvulcanized light-transmitting rubber member 150 to integrate them.

Since the laminates 120 and 110 are surrounded and encapsulated by the light transmissive rubber member 150, the stress light emitting layer 110 is completely protected from the external environment, and a stress light emitting member 100E having extremely good weather resistance and crack resistance is obtained. It is done.

<Eighth Embodiment of the Present Invention>

The eighth embodiment of the present invention will be described with reference to FIG.

FIG. 11 is a schematic enlarged sectional view showing the stress light emitting member 100F.

Referring to FIG. 11, a stress-stimulated luminescent member 100F according to an eighth embodiment of the present invention exposes a part of a light-transmitting rubber member 160b in which a plurality of stress-stimulated luminescent particles 160a are dispersed in advance, and the remaining part. Is embedded in the sidewall 12 of the tire 10.

By laminating an unvulcanized and semi-cured light-transmitting rubber member 160b in which a plurality of stress-stimulated luminescent particles 160a are dispersed in advance with an unvulcanized and sidewall, and vulcanizing simultaneously with an unvulcanized tire body, The light emitting tire 10 having the stress light emitting member 100F can be manufactured all at once.
<Ninth embodiment of the present invention>

A ninth embodiment of the present invention will be described with reference to FIG.

FIG. 12 is a schematic enlarged sectional view showing the stress light emitting member 100G.

Referring to FIG. 12, in the stress-stimulated luminescent member 100G of the ninth embodiment of the present invention, a part of a light-transmitting rubber member 160b in which a plurality of stress-stimulated luminescent particles 160a is dispersed in advance is exposed and the remaining part is exposed. The stress light emitting member 100F shown in FIG. 11 embedded in the side wall 12 of the tire 10 and the reflective layer 120 is further provided on the bottom surface of the stress light emitting member 100F.

In this embodiment, the side wall 12 itself can emit light from stress-stimulated luminescent particles even in a normal black rubber layer, and the light that has traveled to the side wall 12 can be redirected to the outside.

Since the reflective layer 120 is the same as the reflective layer 120 denoted by the same reference numerals in FIGS. 4 and 7, the description thereof is omitted here.

A laminate of an unvulcanized and semi-cured light-transmitting rubber member 160b in which a plurality of stress luminescent particles 160a are dispersed in advance, and a reflective layer 120 containing unvulcanized and semi-cured rubber and light reflecting particles, The light emitting tire 10 having the stress light emitting member 100F can be manufactured at a time by laminating with vulcanized and sidewalls and vulcanizing simultaneously with the unvulcanized tire body.

<Tire with a stress-stimulated light emitting member in the tread groove>

The following tenth to fourteenth embodiments of the present invention are embodiments in which a stress light emitting member is disposed in a groove portion of a tire tread.

<Tenth embodiment of the present invention>

<Tenth embodiment of the present invention>

A tenth embodiment of the present invention will be described with reference to FIGS.

FIG. 13 is a schematic cross-sectional view showing a main part of a tire in which a stress light emitting member is disposed in a groove portion of a tread.

14 is a schematic elevation view showing a tread surface of the tire shown in FIG.

FIG. 15 is a schematic enlarged cross-sectional view showing the vicinity 40 of the stress light-emitting member of FIG. 13 in an enlarged manner.

Referring to FIGS. 13 to 15, a known general tubeless tire 10 basically includes a carcass 13 that is a skeleton of the tire 10, a tread 11 that includes a plurality of grooves 11 b and a ground contact portion 11 a, and a sidewall 12. And a reinforcing belt 16, an inner liner 16 formed inside the tire 10, and a pair of left and right beads 14 that fix both ends of the carcass 13 and prevent it from coming off the rim 20 of the wheel.

In the tubeless tire 10, a pair of beads 14 are in contact with a pair of left and right edges 20 b of the rim 20, and from the surface of the inner liner 15 of the tire 10 and the inner surface 20 a of the rim well that is the bottom of the central recess of the rim 20. Air 17 is press-fitted and filled in the internal space formed, and the tire 10 is inflated by the pressure of the air.

The stress light emitting member 200 is disposed in the groove portion 11 b of the tread 11.

As shown in FIG. 14, in the tread pattern of this embodiment, a plurality of strip-shaped contact portions 11a extending substantially linearly with the road surface and a plurality of strip-shaped grooves 11b extending substantially linearly are alternately arranged. Yes.

The stress light emitting member 200 is disposed along at least one bottom surface of the plurality of grooves 11b.

As shown in FIGS. 13 and 15, the depth d2 of the groove in which the stress light emitting members 200, 200A are disposed is desirably larger than the depth d1 of the groove in which the stress light emitting members 200, 200A are not disposed.

The wear limit of the groove of the normal tread 11 is up to the depth d1.

That is, the total height of the stress light emitting members 200 and 200A is d2 minus d1.

By setting the depth of the groove in this way, the stress light emitting members 200 and 200A can exist until the tire 10 is worn to the wear limit of the groove 11b of the tread 11.

As described above, it is not always necessary to change the depth of the groove in which the stress light emitting members 200 and 200A are disposed and the depth of the groove in which the stress light emitting members 200 and 200A are not disposed. The stress light-emitting members 200 and 200A may be provided on the normal commercially available tire 10 having a substantially constant d2 by post-processing.

The stress light emitting member 200A shown in FIG. 15 includes a light reflecting layer 220 disposed on the bottom surface of the groove 11b with a depth d1, a stress light emitting layer 210 in which a plurality of stress light emitting particles 210a are dispersed in a light transmissive rubber 210b, It is desirable to comprise the light-transmissive protective layer 230 made of a permeable rubber, and a laminated body in which these layers are laminated.

Since the basic configuration of the stress light emitting member 200A is the same as that of the stress light emitting members 100A and 100B described in detail with reference to FIGS. 4 and 7, the description thereof is omitted here.

That is, the light reflection layer 220, the stress light emission layer 210, and the light transmission protective layer 230 of the stress light emission member 200A are the light reflection layer 120, the stress light emission layer 110, and the light transmission protection layer 130 shown in FIGS. It corresponds to.

In order to reduce the cost, the light reflecting layer 220 and / or the light transmitting protective layer 230 may be omitted, and a stress light emitting member including only the stress light emitting layer 210 may be used.

As shown in FIG. 14, when the vehicle such as an automobile travels, the tire 10 rotates around the central axis 32, and the vehicle moves due to the friction that the tread 11 contacts the road surface 31.

As shown in FIG. 14, when the vehicle travels, the tire 10 is elastically deformed and vibrated, and the plurality of strip-shaped stress light emitting members 200 arranged in the grooves 11 b of the tread 11 emit light.

This light emission is well visible from the driver of the following vehicle, for example, and is useful for traffic safety and decorativeness. When viewed from the side of the sidewall, the circular outline of the tire is emitted and observed.

<Eleventh embodiment of the present invention>

The eleventh embodiment of the present invention will be described with reference to FIG.

The eleventh embodiment of the present invention is different from the tenth embodiment of the present invention only in the pattern of the stress light emitting member, and the other parts are the same, so the other parts are omitted. .

16 is a schematic elevation view showing a tread surface of the tire shown in FIG.

Referring to FIG. 16, the plurality of stress light emitting members 201 are arranged in the groove portion 11 b of the tread 11.

The pattern of the tread 11 of this embodiment includes a plurality of strip-shaped contact portions 11a that extend in a substantially straight line that contacts the road surface, and a substantially straight line that does not contact the road surface in a normal state where the contact portions 11a are not worn to the wear limit. A plurality of strip-shaped grooves 11b extending in a shape are alternately arranged.

In FIG. 16, at least one strip-shaped stress light emitting member 201 is disposed separately from each other along the bottom surface of each of the plurality of grooves 11 b in each of the plurality of strip-shaped grooves 11 b extending in a straight line. ing.

When the vehicle such as an automobile travels, the tire 10 rotates R about the central axis 32, and the vehicle moves due to the friction that the tread 11 contacts the road surface 31.

Since the tire 10 is elastically deformed, vibrates and extends in a straight line, at least one strip-shaped stress light emitting member 201 is disposed in each of the plurality of strip-shaped grooves 11b when the vehicle travels. Nearly the entire width looks shining. When viewed from the side of the sidewall, the circular outline of the tire is emitted and observed.

Even when a plurality of strip-shaped stress light-emitting members 201 are separately disposed in each groove 11b, or when one strip-shaped stress light-emitting member 201 is disposed in each groove 11b, when a vehicle travels, Due to the afterimage effect of the eyes, the light emitted from the strip-shaped stress light-emitting members 201 arranged in the respective grooves 11b is observed with the entire height of the tire 10 shining. When viewed from the side of the sidewall, the circular outline of the tire is emitted and observed.

Therefore, in this embodiment, this light emission is observed when the entire tread 11 of the tire 10 shines, and for example, is visually recognized very well by the driver of the following vehicle, which is useful for traffic safety, decorativeness, and the like.

<Twelfth embodiment of the present invention>

A twelfth embodiment of the present invention will be described with reference to FIG.

The twelfth embodiment of the present invention differs from the tenth embodiment of the present invention only in the tread pattern and the stress light emitting member pattern, and the other is the same.

17 is a schematic elevation view showing a tread surface of the tire shown in FIG.

Referring to FIG. 17, the pattern of the tread 11 is alternately arranged with a plurality of vertical contact portions 11 a and a plurality of strip-shaped contact portions 11 a that extend in a substantially linear manner in contact with the road surface. When the portion 11a is in a normal state, the plurality of strip-like grooves 11c1 extending in a substantially straight line that do not contact the road surface and the plurality of lateral grooves 11c2 so as to intersect and connect with the plurality of grooves 11c1 at a predetermined angle. Consists of.

Thus, the pattern of the tread 11 includes a sea-like pattern including the connected grooves 11c1 and 11c2 and an island-shaped pattern including the plurality of contact portions 11a.

In FIG. 17, the stress-stimulated light emitting member 202 is connected to the bottom regions of all the grooves 11c1 and 11c2.

When the vehicle such as an automobile travels, the tire 10 rotates R about the central axis 32, and the vehicle moves due to the friction that the tread 11 contacts the road surface 31.

Since the tire 10 is elastically deformed, vibrates, and has a belt-like groove 11c1 and a stress light emitting member 202 connected to the bottom surface of the groove 11c2, the tire 10 has an afterimage effect on human eyes. Nearly the entire area of the 10 treads 11 appears to shine. When viewed from the side of the sidewall, the circular outline of the tire is emitted and observed.

Therefore, in this embodiment, this light emission is observed with the entire tread 11 of the tire 10 shining and observed, for example, from the driver of the following vehicle, and is useful for traffic safety and decorativeness.

<Thirteenth embodiment of the present invention>

A thirteenth embodiment of the present invention will be described with reference to FIGS.

FIG. 18 is a schematic enlarged cross-sectional view of the vicinity 30 of the location where the stress light-emitting member 200 of FIG. 13 is disposed.

The stress light emitting member 200 </ b> B of this embodiment is disposed in the groove portion 11 b of the tread 11.

As shown in FIG. 18, the groove 11b of the tread 11 of this embodiment is substantially “V” -shaped and has an opening wider than its bottom surface.

The stress light emitting member 200B includes a light reflecting layer 241a formed on the bottom surface of the groove 11b, a light reflecting layer 241b formed on a wall having an inclination extending from the bottom surface to the opening, and a light reflecting layer formed on the bottom surface. The stress light-emitting layer 210 is formed of a light-transmitting rubber 210b and embedded with a plurality of stress light-emitting particles 210a, and the light-transmitting protective layer 230 is formed on the stress light-emitting layer 210.

As shown in FIGS. 13 and 18, the depth d2 of the groove in which the stress light emitting members 200 and 200B are disposed is preferably larger than the depth d1 of the groove in which the stress light emitting members 200 and 200B are not disposed.

The depth d1 of the transmission protective layer 230 is set to the wear limit of the groove 11b of the normal tread 11.

That is, the total height of the stress light emitting layer 210 and the light transmission protective layer 230 is d2 minus d1.

By setting the depth of the groove in this way, the stress light emitting layer 210 and the light transmission protective layer 230 can exist until the tire 10 is worn to the wear limit of the groove 11b of the tread 11.

In this embodiment, since the reflective layer 241b is formed on a wall having an inclination extending from the bottom surface to the opening, light emitted from the stress light emitting layer 210 is reflected by the reflective layer 241b and diffused from the opening to be externally applied. Can be emitted.

<Fourteenth embodiment of the present invention>

A fourteenth embodiment of the present invention will be described with reference to FIGS.

FIG. 19 is a schematic enlarged cross-sectional view of the vicinity 30 of the location where the stress light emitting member 200 of FIG. 13 is disposed.

The stress-stimulated light emitting member 200 </ b> C of this embodiment is disposed in the groove portion 11 b of the tread 11.

As shown in FIG. 19, the groove 11b of the tread 11 of this embodiment is substantially “V” -shaped and has an opening wider than its bottom surface.

The stress light emitting member 200 </ b> C includes a “V” -shaped light reflecting layer 241, a stress light emitting layer 211, and a light transmission protective layer 231.

That is, the stress light emitting member 200C includes a substantially “V” -shaped light reflecting layer 241 formed on the bottom surface of the substantially “V” -shaped groove 11b and a wall having an inclination extending from the bottom surface to the opening, and this A substantially “V” -shaped stress light-emitting layer 211 formed on the light-reflecting layer 241 in which a plurality of stress-luminescent particles are embedded in light-transmitting rubber, and a substantially “V” -shaped light transmission formed on the stress-light-emitting layer 211. It consists of a protective layer 231.

As shown in FIG. 19, the stress light emitting layer 211 of the stress light emitting member 200C of this embodiment can have a larger area of the stress light emitting layer than the stress light emitting layer 210 of the stress light emitting member 200B shown in FIG. The amount of luminescence can be increased.

For example, the depth of the groove 11b excluding the stress light emitting member 200C is d2 and the depth of the groove 11b from the opening to the surface of the transmission protective layer 231 is d1, and the wear limit depth of the groove 11b of the normal tread 11 is d1. Can be set to d1.

By setting the depth of the groove in this manner, the stress light emitting member 200C in the inclined portion is simultaneously worn until the ground contact portion 11a that contacts the road surface of the tread 11 is worn to the wear limit of the groove 11b of the tread 11. Thus, the stress-stimulated light emitting member 200C at the bottom can be present.

Therefore, although the light emission luminance of the stress light emitting member 200C decreases, the stress light emitting member 200C can continue to emit light up to the wear limit.

<Tire with a stress-stimulated light emitting member disposed on the tread road surface contact portion>

The fifteenth to xxth embodiments of the present invention to be described below are embodiments in which a stress light emitting member is embedded and arranged in a road surface contact portion of a tread of a tire.

<Fifteenth embodiment of the present invention>

A fifteenth embodiment of the present invention will be described with reference to FIGS.

FIG. 20 is a schematic cross-sectional view showing a main part of a tire in which a stress light emitting member is embedded in a road surface contact portion of a tread.

21 is a schematic elevation view showing an example of the tread pattern of the tire shown in FIG.

FIG. 22 is a schematic enlarged cross-sectional view showing an enlarged vicinity portion 50 of the stress light-emitting member of FIG.

20 to 22, a known general tubeless tire 10 basically includes a carcass 13 that is a skeleton of the tire 10, a tread 11 that includes a plurality of grooves 11b and a ground contact portion 11a, and a sidewall 12. And a reinforcing belt 16, an inner liner 16 formed inside the tire 10, and a pair of left and right beads 14 that fix both ends of the carcass 13 and prevent it from coming off the rim 20 of the wheel.

In the tubeless tire 10, a pair of beads 14 are in contact with a pair of left and right edges 20 b of the rim 20, and from the surface of the inner liner 15 of the tire 10 and the inner surface 20 a of the rim well that is the bottom of the central recess of the rim 20. Air 17 is press-fitted and filled in the internal space formed, and the tire 10 is inflated by the pressure of the air.

As shown in FIG. 21, in the tread pattern of this embodiment, a plurality of strip-shaped contact portions 11a extending substantially linearly with a road surface and a plurality of strip-shaped grooves 11b extending substantially linearly are alternately arranged. Yes.

The stress-stimulated light emitting member 300 is disposed so as to be embedded in at least a part of the road surface contact portion 11 a of the tread 11.

In the example shown in FIG. 21, the stress-stimulated light emitting member 300 is disposed so as to be buried substantially at the center of one strip-shaped contact portion 11 a located approximately in the middle of the width of the tread 11.

As shown in FIG. 22, the depth (thickness of the stress light emitting member 300A) d3 for embedding the stress light emitting member 300A embedded in the substantially central portion of the road surface contact portion 11a of the tread 11 is larger than the groove depth d1 of the tread 11. It is desirable to do.

A stress light emitting member 300A shown in FIG. 22 includes a light reflecting layer 320 disposed on an embedded bottom surface, a stress light emitting layer 310 in which a plurality of stress light emitting particles are dispersed in a light transmissive rubber, and light composed of a light transmissive rubber. It is desirable that the transparent protective layer 330 is formed, and a laminated body in which these layers are laminated.

As shown in FIG. 22, it is more desirable to make the depth d4 of the light-transmitting protective layer 330 larger than the depth d1 of the groove before use which is not worn, so that the tire is worn to the wear limit of the depth d1. However, the stress light emitting layer 310 exists, and the light emission can be continued.

Since the basic structure of the stress light emitting member 300A is the same as that of the stress light emitting members 100A and 100B described in detail with reference to FIGS. 4 and 7, the description thereof is omitted here.

That is, the light reflection layer 320, the stress light emission layer 310, and the light transmission protective layer 330 of the stress light emission member 300A are the light reflection layer 120, the stress light emission layer 110, and the light transmission protection layer 130 shown in FIGS. It corresponds to.

As shown in FIG. 21, when a vehicle such as an automobile travels, the tire 10 rotates R about the central axis 32, and the vehicle moves due to friction that the tread 11 contacts the road surface 31.

As shown in FIG. 21, when the vehicle travels, the tire 10 is elastically deformed and vibrated, and at least one strip-shaped stress light-emitting member 300 or 300 </ b> A disposed on the road surface contact portion 11 a of the tread 11 emits light. When viewed from the side of the sidewall, the circular outline of the tire is emitted and observed.

This light emission is well seen by the driver of the following vehicle, for example, and is useful for traffic safety and decorativeness.

<Sixteenth Embodiment of the Present Invention>

A sixteenth embodiment of the present invention will be described with reference to FIG.

The sixteenth embodiment of the present invention is a modification of the fifteenth embodiment.

FIG. 23 is a schematic elevational view showing another example of a pattern in which a stress light emitting member is embedded and arranged in the road surface contact portion of the tread of the tire shown in FIG.

As shown in FIG. 23, in the tread pattern of this embodiment, a plurality of strip-shaped contact portions 11a extending substantially linearly with a road surface and a plurality of strip-shaped grooves 11b extending substantially linearly are alternately arranged. Yes.

The stress-stimulated light emitting member 300 is disposed so as to be embedded in at least a part of the road surface contact portion 11 a of the tread 11.

In the example shown in FIG. 23, a plurality of strip-like stress light emitting members 301 are separately arranged and embedded in the center of one strip-like contact portion 11 a located substantially in the middle of the width of the tread 11.

The configuration of the stress light emitting member 301 is the same as that of the stress light emitting members 300 and 301A shown in FIGS.

As shown in FIG. 23, when the vehicle such as an automobile travels, the tire 10 rotates around the central axis 32, and the vehicle moves due to the friction that the tread 11 contacts the road surface 31.

When the vehicle travels, the tire 10 is elastically deformed and vibrated, and one or more strip-shaped stress light emitting members 301 disposed on the road surface contact portion 11a of the tread 11 emit light.

This light emission is well seen by the driver of the following vehicle, for example, and is useful for traffic safety and decorativeness.

Since the tire 10 is rotating R while the vehicle is traveling, when viewed from the tread surface, the belt at the tire height is continuously emitted and observed due to the afterimage effect of human eyes. When viewed from the side of the sidewall, the circular outline of the tire is emitted and observed.

<Seventeenth embodiment of the present invention>

A seventeenth embodiment of the present invention will be described with reference to FIG.

The seventeenth embodiment of the present invention is a modification of the fifteenth and sixteenth embodiments.

FIG. 24 is a schematic enlarged cross-sectional view showing a vicinity portion 50 of the stress-stimulated light emitting member arranged and embedded in the road surface contact portion 11a of the tread 11 of the tire shown in FIG.

Referring to FIG. 24, the stress-stimulated light emitting member 300 </ b> B includes a substantially “V” -shaped light reflecting layer 350 having an inclined portion extending upward from the bottom surface and a maximum depth d <b> 3 formed on the bottom surface, and “V Stress in which a plurality of stress-emitting particles 340a arranged in the vicinity of the bottom surface of the light reflecting layer 350 are embedded in the light-transmitting rubber 340b filled from the bottom surface of the letter-shaped light reflecting layer 350 to the road surface contact surface 11a. It consists of a light emitting layer 350.

In the stress-stimulated luminescent layer 340, the bottom side is a light emitting part containing a lot of stressed luminescent particles 340a, and the top side functions as a light transmission protecting part of the light emitting part that hardly contains the stressed luminescent particles 340a.

As shown in FIG. 24, it is desirable that the depth d4 of the light transmission protecting portion is larger than the depth d1 that is the wear limit of the tread groove 11b.

By setting the depth of the light transmission protecting portion in this way, the reflective layer 350 and the stress light emitting portion gradually wear as the road surface contact surface 11a of the tread 11 wears. Thus, the stress light emitting portion can exist until it is worn down to the wear limit d1 of the 11 grooves 11b.

In this embodiment, since the reflective layer 350 is formed to extend upward from the bottom surface, the light emitted from the stress light-emitting portion is reflected by the substantially “V” -shaped reflective layer 350 and passes through the light transmission protection portion. And can be diffused and emitted to the outside.

<Eighteenth embodiment of the present invention>

The eighteenth embodiment of the present invention will be described with reference to FIG.

The eighteenth embodiment of the present invention is a modification of the sixteenth and seventeenth embodiments.

FIG. 25 is a schematic enlarged cross-sectional view showing the vicinity portion 50 of the stress light-emitting member arranged so as to be embedded in the road surface contact portion 11a of the tread 11 of the tire 10 shown in FIG.

Referring to FIG. 25, the stress light emitting member 300 </ b> C is disposed so as to be embedded in at least a part of the road surface contact portion 11 a of the tread 11.

Referring to FIG. 25, stress-stimulated light emitting member 300 </ b> C includes a substantially “V” -shaped light reflecting layer 350 having an inclined portion that extends upward from the bottom surface and has a maximum depth d <b> 3 formed on the bottom surface, and “V A plurality of stress-stimulated particles 360a arranged on the light-transmitting rubber 360b filled from the bottom surface of the light-reflecting layer 350 to the road surface contact surface 11a so as to be concentrated near the bottom surface and the inclined portion of the light reflecting layer 350. The stress light emitting layer 360 is embedded.

The stress light emitting layer 360 is a light emitting portion in which the vicinity of the bottom surface and the vicinity of the inclined portion contain a large amount of stress light emitting particles 340b, and the other functions as a light transmission protecting portion of a light emitting portion that hardly contains the stress light emitting particles 360a. Are integrated.

As shown in FIG. 25, the depth d4 of the stress light emitting portion near the bottom surface is desirably larger than the depth d1 that is the wear limit of the tread groove 11b.

By setting in this way, the reflective layer 340 and the stress light emitting portion gradually wear as the road surface contact surface 11a of the tread 11 wears, but the tire 10 wears a limit d1 of the groove 11b of the tread 11. A stress light emitting portion in the vicinity of the bottom surface can exist until it is worn out.

In this embodiment, since the reflective layer 350 is formed to extend upward from the bottom surface, the light emitted from the stress light-emitting portion is reflected by the substantially “V” -shaped reflective layer 350 and passes through the light transmission protection portion. And can be diffused and emitted to the outside.

In this embodiment, since the stress light emitting portion exists in the vicinity of the inclined portion in the same manner as the bottom surface, the light emitting area can be increased.

<Nineteenth embodiment of the present invention>

A nineteenth embodiment of the present invention will be described with reference to FIG.

The nineteenth embodiment of the present invention is a modification of the sixteenth, seventeenth and eighteenth embodiments.

FIG. 26 is a schematic enlarged cross-sectional view showing a vicinity portion 50 of the stress light-emitting member arranged and embedded in the road surface contact portion 11a of the tread 11 of the tire 10 shown in FIG.

Referring to FIG. 26, the stress light emitting member 300 </ b> D is disposed so as to be embedded in at least a part of the road surface contact portion 11 a of the tread 11.

Referring to FIG. 26, the stress-stimulated light emitting member 300 </ b> D includes a substantially “V” -shaped light reflecting layer 350 having an inclined portion that spreads and extends upward from the bottom surface and a maximum depth d <b> 3 formed on the bottom surface, It comprises a stress-stimulated light-emitting layer 370 in which a plurality of stress-stimulated light-emitting particles 370a are substantially uniformly dispersed and embedded in a light-transmitting rubber 370b filled from the bottom surface of the letter-shaped light reflecting layer 350 to the road surface contact surface 11a.

In this embodiment, since the reflective layer 350 is formed to extend upward from the bottom surface, light emitted from the stress light-emitting portion is reflected and diffused by the substantially “V” -shaped reflective layer 350 to the outside. It can be emitted.

In this embodiment, since the stress luminescent particles 370a are almost uniformly dispersed in the stress luminescent layer 370, the amount of luminescence can be increased.

As the road surface contact surface 11a of the tread 11 is worn, the reflective layer 350 and the stress light emitting layer 370 are gradually worn. The stress light emission part can exist.

<Twentieth embodiment of the present invention>

A twentieth embodiment of the present invention will be described with reference to FIG.

The twentieth embodiment of the present invention is a modification of the sixteenth to nineteenth embodiments.

FIG. 27 is a schematic enlarged cross-sectional view showing the vicinity portion 50 of the stress light-emitting member disposed in the road surface contact portion 11a of the tread 11 of the tire 10 shown in FIG.

Referring to FIG. 27, the stress-stimulated light emitting member 300 </ b> E is embedded and disposed in at least a part of the road surface contact portion 11 a of the tread 11.

Referring to FIG. 27, stress-stimulated light emitting member 300 </ b> E has a substantially trapezoidal or pyramidal cross section, and has a light reflecting layer 390 disposed on the outer surface excluding the top surface serving as a light exit window, and light reflecting layer 390. It is composed of a stress light emitting layer 380 in which a plurality of stress light emitting particles 380a are substantially uniformly dispersed and embedded in a light transmitting rubber 380b filled in the enclosed space.

In this embodiment, since the stress-stimulated luminescent member 300E disperses the stress-stimulated luminescent particles 340b almost uniformly in the stress-stimulated luminescent layer 380, the amount of emitted light can be increased.

In this embodiment, since the stress light emitting member 300E has a substantially trapezoidal or pyramid shape in cross section, the stress light emitting member 300E is firmly embedded in the tread 10 and can sufficiently follow the vibration and elastic deformation that are received when the vehicle travels. . ,

As the road surface contact surface 11a of the tread 11 is worn, the reflective layer 340 and the stress light emitting layer 380 are gradually worn. The stress light emission part can exist.

The present invention is not limited to the various embodiments described above, and any combination of components and components of the various embodiments is possible.

Various embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to these embodiments, and various modifications, based on the spirit of the present invention and the scope of the claims, Design changes and improvements are possible.

FIG. 1 is a conceptual elevation view showing a diamond assembly (diamond assembly) in which a stress light emitting diamond according to a first embodiment of the present invention is attached to a rim as a cross section, cut along a line AA in FIG. is there. FIG. 2 is a conceptual elevation showing an enlarged cross-sectional view of the stress light-emitting diamond shown in FIG. FIG. 3 is a conceptual perspective view of the stress light emitting diamond shown in FIGS. 1 and 2. FIG. 4 is a conceptual cross-sectional view showing an enlarged vicinity 18 of the stress-stimulated light emitting member attached to the stress diagram shown in FIG. FIG. 5 is a conceptual side view of a stress light-emitting diamond showing a second embodiment of the present invention. FIG. 6 is a conceptual side view of a stress light emitting diagram showing a third embodiment of the present invention. FIG. 7 is a schematic enlarged sectional view showing the stress light emitting member 100B. FIG. 8 is a schematic enlarged sectional view showing the stress light emitting member 100C. FIG. 9 is a schematic enlarged sectional view showing the stress light emitting member 100D. FIG. 10 is a schematic enlarged sectional view showing the stress light emitting member 100E. FIG. 11 is a schematic enlarged sectional view showing the stress light emitting member 100F. FIG. 12 is a schematic enlarged sectional view showing the stress light emitting member 100G. FIG. 13 is a schematic cross-sectional view showing a main part of a tire in which a stress light emitting member is disposed in a groove portion of a tread. 14 is a schematic elevation view showing a tread surface of the tire shown in FIG. FIG. 15 is a schematic enlarged cross-sectional view showing the vicinity 40 of the stress light-emitting member of FIG. 13 in an enlarged manner. 16 is a schematic elevation view showing a tread surface of the tire shown in FIG. 17 is a schematic elevation view showing a tread surface of the tire shown in FIG. FIG. 18 is a schematic enlarged cross-sectional view of the vicinity 30 of the location where the stress light-emitting member 200 of FIG. 13 is disposed. FIG. 19 is a schematic enlarged cross-sectional view of the vicinity 30 of the location where the stress light emitting member 200 of FIG. 13 is disposed. FIG. 20 is a schematic cross-sectional view showing a main part of a tire in which a stress light emitting member is embedded in a road surface contact portion of a tread. 21 is a schematic elevation view showing an example of the tread pattern of the tire shown in FIG. FIG. 22 is a schematic enlarged cross-sectional view showing an enlarged vicinity portion 50 of the stress light-emitting member of FIG. FIG. 23 is a schematic elevational view showing another example of a pattern in which a stress light emitting member is embedded and arranged in the road surface contact portion of the tread of the tire shown in FIG. FIG. 24 is a schematic enlarged cross-sectional view showing a vicinity portion 50 of the stress-stimulated light emitting member arranged and embedded in the road surface contact portion 11a of the tread 11 of the tire shown in FIG. FIG. 25 is a schematic enlarged cross-sectional view showing the vicinity portion 50 of the stress light-emitting member arranged so as to be embedded in the road surface contact portion 11a of the tread 11 of the tire 10 shown in FIG. FIG. 26 is a schematic enlarged cross-sectional view showing a vicinity portion 50 of the stress light-emitting member arranged and embedded in the road surface contact portion 11a of the tread 11 of the tire 10 shown in FIG. FIG. 27 is a schematic enlarged cross-sectional view showing the vicinity portion 50 of the stress light-emitting member disposed in the road surface contact portion 11a of the tread 11 of the tire 10 shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Tire 11 ... Tread 11a ... Road surface contact part 11b ... Groove (groove)
12 ... side fall (side wall)
13 ... Carcass (skeleton, framework)
14 ... Bead (bead core, steel wire)
15 ... Inner liner 16 ... Belt 17 ... Air 20 ... Rim (mounting frame)
20a ... Rimwell (bottom of rim)
20b ... Rim edge 30 ... Wheel 30a ... Wheel cap 31 ... Road surface 32 ... Center axis, rotation axis 100 ... Stress light emitting member 100A ... Stress light emitting member 100B ... Stress light emitting member 100C ... Stress light emitting member 100D ... Stress light emitting member 100E ... Stress light emitting member 100F ... Stress light emitting member 100G ... Stress light emitting member 100A ... Stress light emitting member 101 ... Stress Light emitting member 102 ... Stress light emitting member 103 ... Stress light emitting member 110 ... Reflective layer, reflective sheet 120 ... Stress light emitting layer 130 ... Light transmission protective layer 140 ... Light transmission member, Light transmission Layer 150 ... light transmission member, light transmission layer 160a ... stress light emitting particle 160b ... light transmission member 200 ... stress light emission member 200A ... stress light emission member 200B ... stress emission Member 200C ... Stress light emitting member 201 ... Stress light emitting member 202 ... Stress light emitting member 210 ... Stress light emitting layer 210a ... Stress light emitting particle 210b ... Light transmitting member 211 ... Stress light emitting layer 220 ... light reflection layer 230 ... light transmission protective layer 231 ... light transmission protection layer 241 ... light reflection layer 241a ... light reflection layer 241b ... light reflection layer 300A ... stress emission Member 300B ... Stress light emitting member 300C ... Stress light emitting member 300D ... Stress light emitting member 300E ... Stress light emitting member 301 ... Stress light emitting member 302 ... Stress light emitting member 310 ... Stress light emitting layer 320 ... light reflecting layer 330 ... light transmitting member 340 ... stress light emitting layer 340a ... stress light emitting particle 340b ... light transmitting member 350 ... light reflecting layer 360 ... stress light emitting layer 36 a ... stress luminescent particles 360b ... light transmissive member 370 ... stress luminescent layer 370a ... stress luminescent particles 370b ... light transmissive member 380 ... stress luminescent layer 380a ... stress luminescent particles 380b ... Light transmission member 390 ... Light reflection layer

Claims (23)

An elastic tire;
A light-emitting tire comprising a stress-stimulated luminescent material that reversibly emits light when mechanical stress is applied to at least a part of the tire.
Rubber tires consisting of tread (grounding part) and sidewall (side wall),
A light-emitting tire comprising a stress-stimulated luminescent material that emits light reversibly when mechanical stress is applied to at least a part of the sidewall.
Rubber tires consisting of treads and sidewalls,
A stress light emitting member that emits light reversibly by applying mechanical stress disposed on at least a part of the sidewall,
A light emitting tire, wherein the stress light emitting member comprises a light transmissive rubber and a plurality of stress luminescent particles contained in the light transmissive rubber.
Rubber tires consisting of treads and sidewalls,
A stress light emitting member that emits light reversibly by applying mechanical stress disposed on at least a part of the sidewall,
The light-emitting tire in which the stress-stimulated light-emitting member is a laminate including a light-emitting rubber layer containing a plurality of stress-stimulated luminescent particles in a light-transmitting rubber and a reflective rubber layer containing a plurality of reflectors in the light-transmitting rubber. .
Rubber tires consisting of treads and sidewalls,
A stress illuminant that emits light reversibly upon application of mechanical stress;
It is composed of at least one non-black rubber member colored in white or chromatic color that is embedded in at least a part of the side wall colored in black,
A light-emitting tire in which the stress-stimulated luminescent material is disposed on at least a part of an exposed portion of a non-black rubber member.
Rubber tires consisting of treads and sidewalls,
A stress illuminant that emits light reversibly upon application of mechanical stress;
Consisting of at least one light emitting rubber member containing the stress luminescent material in a light transmissive rubber member,
A light-emitting tire in which the light-emitting rubber member is disposed so as to be exposed in at least a part of the sidewall so as to expose a light emitting surface.
Rubber tires consisting of treads and sidewalls,
A light-emitting tire comprising a stress-stimulated illuminant that emits light reversibly when mechanical stress is applied to at least a part of the tread.
Rubber tires consisting of treads and sidewalls,
The stress light-emitting member that emits light reversibly by applying mechanical stress disposed on at least a part of the tread,
A light emitting tire, wherein the stress light emitting member comprises a light transmissive rubber and a plurality of stress luminescent particles contained in the light transmissive rubber.
Rubber tires consisting of treads and sidewalls,
A stress light emitting member that emits light reversibly by applying mechanical stress disposed in at least a part of at least one groove formed in the tread,
A light emitting tire, wherein the stress light emitting member comprises a light transmissive rubber and a plurality of stress luminescent particles contained in the light transmissive rubber.
Rubber tires consisting of treads and sidewalls,
A stress light emitting member that emits light reversibly by applying mechanical stress disposed in at least a part of at least one groove formed in the tread,
The light emitting tire, wherein the stress light emitting member is a laminate including a light emitting rubber layer containing a plurality of stress light emitting particles in a light transmissive rubber and a reflective rubber layer containing a plurality of reflectors in the light transmissive rubber.
Rubber tires consisting of treads and sidewalls,
A stress light emitting member that emits light reversibly by applying mechanical stress disposed in at least a part of at least one groove formed in the tread,
The stress light emitting member is a laminate comprising a light emitting rubber layer containing a plurality of stress light emitting particles in a light transmissive rubber, and a reflective rubber layer containing a plurality of reflectors in the light transmissive rubber,
A light-emitting tire in which the laminate is embedded at least at the bottom of the groove.
Rubber tires consisting of treads and sidewalls,
A stress light emitting member that emits light reversibly by applying mechanical stress disposed in at least a part of at least one groove formed in the tread,
The stress-stimulated luminescent member comprises a light-transmitting rubber and a plurality of stress-stimulated luminescent particles contained in the light-transmitting rubber,
A luminescent tire in which at least some of the plurality of stress-stimulated luminescent particles are present at a position lower than at least a friction limit depth of the groove.
A tread having at least one road surface contact portion and at least one groove, a rubber tire comprising a sidewall, and
A light-emitting tire comprising a stress-stimulated luminescent material that emits light reversibly when mechanical stress is applied to at least a part of the road surface contact portion.
A tread having at least one road surface contact portion and at least one groove, a rubber tire comprising a sidewall, and
A light-emitting tire comprising a stress-stimulated luminescent material that emits light reversibly when mechanical stress is applied to at least a part of the road surface contact portion.
A tread having at least one road surface contact portion and at least one groove, a rubber tire comprising a sidewall, and
A stress light-emitting member that emits light reversibly by applying mechanical stress disposed at least a part of the road surface contact portion,
A light emitting tire, wherein the stress light emitting member comprises a light transmissive rubber and a plurality of stress luminescent particles contained in the light transmissive rubber.
A tread having at least one road surface contact portion and at least one groove, a rubber tire comprising a sidewall, and
A stress light-emitting member that emits light reversibly by applying mechanical stress disposed at least a part of the road surface contact portion,
The stress-stimulated luminescent member comprises a light-transmitting rubber and a plurality of stress-stimulated luminescent particles contained in the light-transmitting rubber,
A light emitting tire embedded in the contact portion so that the stress light emitting member exposes a light emitting surface.
A tread having at least one road surface contact portion and at least one groove, a rubber tire comprising a sidewall, and
A stress light-emitting member that emits light reversibly by applying mechanical stress disposed at least a part of the road surface contact portion,
The light emitting tire, wherein the stress light emitting member is a laminate including a light emitting rubber layer containing a plurality of stress light emitting particles in a light transmissive rubber and a reflective rubber layer containing a plurality of reflectors in the light transmissive rubber.
A tread having at least one road surface contact portion and at least one groove, a rubber tire comprising a sidewall, and
A stress light emitting member that emits light reversibly by application of mechanical stress embedded in at least a part of the road surface contact portion,
The stress-stimulated luminescent member comprises a light-transmitting rubber and a plurality of stress-stimulated luminescent particles contained in the light-transmitting rubber,
A luminescent tire in which at least some of the plurality of stress-stimulated luminescent particles are present at a position lower than at least a friction limit depth of the groove.
Rubber tires consisting of treads and sidewalls,
A light-emitting tire comprising a stress-stimulated luminescent material that emits light reversibly when mechanical stress is applied to at least a part of the tread and at least a part of the sidewall.
A light emitting member for rubber / tire comprising a stress light emitting body that emits light upon application of mechanical stress, and is fixed to at least a part of the rubber / tire.
A rubber / tire light emitting member for fixing to at least a part of a rubber / tire, comprising a light emitting rubber member containing a plurality of stress-stimulated luminescent particles that emit light by applying mechanical stress to a light transmissive rubber.
A rubber / tire light emitting member for fixing to at least a part of a rubber / tire, comprising a laminate comprising a light emitting layer containing a stress light emitting body that emits light upon application of mechanical stress and a reflective layer.
A rubber comprising a light-emitting rubber member containing a plurality of stress-stimulated luminescent particles that emit light when mechanical stress is applied to a light-transmitting rubber, and a reflecting member including a plurality of light-reflecting materials in the light-transmitting rubber. -A light emitting member for rubber and tire for fixing to at least a part of the tire.

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