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WO2005110825A1 - Dispositif d’injection de produit d’etancheite et dispositif d’injection - Google Patents

Dispositif d’injection de produit d’etancheite et dispositif d’injection Download PDF

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Publication number
WO2005110825A1
WO2005110825A1 PCT/JP2005/008856 JP2005008856W WO2005110825A1 WO 2005110825 A1 WO2005110825 A1 WO 2005110825A1 JP 2005008856 W JP2005008856 W JP 2005008856W WO 2005110825 A1 WO2005110825 A1 WO 2005110825A1
Authority
WO
WIPO (PCT)
Prior art keywords
power supply
pump
air
cylinders
sealing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2005/008856
Other languages
English (en)
Japanese (ja)
Inventor
Hideshi Yanagi
Kazuma Nakazawa
Ichirou Yamaguchi
Daisuke Sugio
Yuji Takeda
Shinichi Iwasaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bridgestone Corp
Original Assignee
Bridgestone Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2004294494A external-priority patent/JP2006009778A/ja
Priority claimed from JP2004294495A external-priority patent/JP2006002747A/ja
Application filed by Bridgestone Corp filed Critical Bridgestone Corp
Publication of WO2005110825A1 publication Critical patent/WO2005110825A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C73/00—Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass B29D
    • B29C73/16—Auto-repairing or self-sealing arrangements or agents
    • B29C73/166—Devices or methods for introducing sealing compositions into articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S5/00—Servicing, maintaining, repairing, or refitting of vehicles
    • B60S5/04—Supplying air for tyre inflation
    • B60S5/043—Supplying air for tyre inflation characterised by the inflation control means or the drive of the air pressure system
    • B60S5/046—Supplying air for tyre inflation characterised by the inflation control means or the drive of the air pressure system using electrical or electronical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2030/00—Pneumatic or solid tyres or parts thereof

Definitions

  • the present invention provides a method for increasing the internal pressure of a pneumatic tire by supplying a pressurized air into the pneumatic tire after injecting a sealing agent for sealing the punctured pneumatic tire into the pneumatic tire. And a pump-up device for supplying pressurized air into the pneumatic tire to increase the internal pressure of the pneumatic tire.
  • a sealing / pumping-up device 10 disclosed in Patent Document 1 includes a pressure-resistant container 14 containing a sealing agent 12 and an air conditioner 15 serving as a supply source of pressurized air.
  • the air compressor 15 includes a power cable 18 having a plug 16 provided at a distal end thereof, and a pressure-resistant hose 20 which also extends a discharge locus of pressurized air.
  • the pressure-resistant container 14 is provided with a gas introduction part 22 formed as a riser tube extending to the level of the sealing agent 12 and an outlet valve 24 for discharging the sealing agent 12.
  • a hose 28 having an adapter 26 provided at the distal end is connected to 24.
  • the sealing and pump-up device 10 when a puncture occurs in the tire, the plug 16 is inserted into the cigar socket of the vehicle, and the adapter 26 is screwed to the tire valve 27.
  • the gas inlet 22 is opened by the stopper valve 23.
  • the air compressor 15 is operated, and pressurized air is introduced from the air compressor 15 into the pressure-resistant container 14 through the gas introduction unit 22.
  • the internal pressure of the gas layer above the sealing agent 12 in the pressure vessel 14 increases, and the static pressure in the gas layer increases the outlet valve 24 pressure.
  • the force is also pushed out of the sealing agent 12, and the sealing agent 12 is injected into the tire through the tire valve 27.
  • the pressurized air in the pressure-resistant container 14 is supplied to the inside of the tire through the outlet rono-lev 24, and the tire is cooled. Is expanded at a predetermined internal pressure.
  • a current breaker is usually provided in the air compressor of the sealing-pump-up device as described above, and the current breaker is provided with a motor for driving a pump in the air compressor. If an overcurrent exceeding the allowable current value flows in the power supply circuit for controlling the current supply to the motor, the power supply is shut off to protect the motor and the power supply circuit from the overcurrent.
  • a current breaker applied to this type of sealing-pump-up device a device using a fuse formed by enclosing a metal wire in a glass tube has been generally used.
  • This fuse-type current breaker is installed, for example, between the power supply circuit and the socket, and when an overcurrent flows through the fuse due to an abnormal load on the motor, the metal wire of the fuse melts. When the heat is blown out until it exceeds, the knotting force of the vehicle also cuts off the current supply to the power circuit of the air compressor.
  • Fuse-type current breakers are usually also provided between the vehicle battery and the cigar socket, and the current breakers cause the vehicle side battery and the current supply circuit to overcurrent. It also protects power. Generally, when the rated voltage of the battery is 12 V, the rated current value of the fuse on the vehicle side is set to 15 A.
  • Patent Document 1 Japanese Patent No. 3210863
  • the fuse is generally about 65% or less of the rated current value of the fuse on the vehicle side, that is, a rated current of 10A or less.
  • the one with the set current value must be used.
  • fuses on the vehicle side that have relatively high detection accuracy and responsiveness to overcurrent are used, and fuses on the air compressor side that have a rated current value exceeding 10 A (for example, If 12A or 15A) is used, the starting current when the air compressor starts operating will blow the fuse on the vehicle side, and there is no spare fuse. May cause trouble in driving the vehicle.
  • the drive current supplied to the air compressor of the sealing pump-up device is also limited to 10 A or less, and the air compressor is always operated at a low load (low power) with respect to the original maximum capacity. This must prevent the pump-up device from shortening the time for injecting sealant into the tire and reducing the pump-up time.
  • the fuse used on the air compressor side has higher detection accuracy and responsiveness to overcurrent than the fuse on the vehicle side, and has a rated current value exceeding 10A and a current of 15A or less. Since the detection accuracy and responsiveness of such a fuse vary widely among products and the value of the current flowing through the power circuit of the air compressor fluctuates greatly, the fuse on the air compressor side must be used. However, it is always difficult to blow a fuse in preference to a fuse on the vehicle. If a fuse-type current interrupter is used for the air compressor of the sealing / pump-up device, the current interrupter is activated and the current is interrupted, and the current interrupter is restored. In order to restart the operation of the air compressor, it is necessary to replace a new fuse mounted in the current breaker with a new one, and the operation is complicated.
  • An object of the present invention is to provide a sealing / pump-up device and a pump-up device which can be operated with a current having a maximum current value substantially equal to a rated current value that can be supplied by a vehicle battery, in consideration of the above fact. Is to do.
  • the tire sealing-pump-up device is configured such that a liquid sealing agent is injected into a punctured pneumatic tire, and then the pressurized air is supplied into the pneumatic tire to supply air.
  • Air pumping means for pumping air, driving means for receiving power supply to generate power for driving the sealing agent injecting means and air pumping means, and a battery connected to a battery mounted on a vehicle;
  • Power The power supply means for supplying power to the drive means, and the power supply to the drive means is cut off when an overcurrent exceeding an allowable current value flows through the power supply means. That over-current interrupting means When an overcurrent flows through the power supply means as the overcurrent cutoff means, the movable piece for power cutoff, which is a magnetic material, is actuated by electromagnetic force to supply power to the power supply means. It is characterized by using an electromagnetic current breaker for interrupting.
  • the power supply to the power supply means is cut off.
  • an electromagnetic current breaker that cuts off power supply to the power supply means by operating the movable piece for power cutoff made of magnetic material by electromagnetic force as the overcurrent cutoff means.
  • the current breaker makes it easier to set the detection accuracy and responsiveness to overcurrent to the desired levels, respectively, and the variation in the detection accuracy and responsiveness among individual products. Therefore, the rated current value of the electromagnetic current breaker is approximately equal to the rated current value of the current breaker on the vehicle side.
  • a current having a maximum current value sufficiently close to the rated current value that can be supplied by the battery of the vehicle is supplied to the driving means, Since the sealing agent injection means and the air pumping means can be operated by the power of the driving means, the operating efficiency of the sealing agent injection means and the air pumping means can be respectively increased, and the sealing agent injection time and the pump-up time for the tire can be respectively increased. It can be shortened efficiently.
  • the tire sealing 'pump-up device is characterized in that, after injecting a liquid sealing agent into a punctured pneumatic tire, pressurized air is supplied into the pneumatic tire to provide air.
  • Driving means for generating power for driving the vehicle, power supply means connected to a battery mounted on a vehicle to supply power from the battery to the driving means, and an overcurrent exceeding an allowable current value in the power supply means.
  • an overcurrent interrupting means for interrupting the power supply to the power supply means when flowing, and as an overcurrent interrupting means, an overcurrent interrupting means formed of a metal material when an overcurrent flows to the power supply means.
  • a heat-actuated current breaker that cuts off power supply to the power supply means by deforming the movable piece with Joule heat is used.
  • the power to the power supply means stage is reduced.
  • a thermal-actuated current breaker that cuts off the power supply to the power supply means by deforming the movable piece made of metal material for electric power interruption by Joule heat as the overcurrent cutoff means to cut off the supply
  • Such a heat-operated current breaker can easily set the detection accuracy and responsiveness to an overcurrent to desired levels, respectively, as compared with a fuse-type current breaker, and can provide the detection accuracy and Since the variability between individual responsive products can be reduced, the rated current value of the thermal breaker is approximately equal to the rated current value of the current breakers on both sides of the vehicle, or set to a slightly lower value.
  • the thermally activated current breaker can be reliably operated at a timing earlier than the current breaker on the vehicle side is activated.
  • a current having a maximum current value substantially equal to the rated current value that can be supplied by the battery of the vehicle is supplied to the driving means. Since the sealing agent injection means and the air pumping means can be operated by the power from the means, respectively, the operating efficiency of the sealing agent injection means and the air pumping means can be respectively increased, and the sealing agent injection time and the pump-up time for the tire can be reduced. Each can be shortened efficiently.
  • the current breaker is formed of a bimetal plate.
  • the movable piece is provided with a base end connected to a first contact and a distal end supported so as to be in contact with a second contact, to cut off power supply to the power supply means. In some cases, the movable piece is deformed in the radial direction by Joule heat and separated from the second contact.
  • the current breaker is formed in a plate shape from a metal material having a thermal expansion property. And a movable portion provided with a base portion supported in a cantilevered state and a reversing portion supported in a curved state between a base end and a distal end of the base portion. A base end of the base portion connected to a first contact and a tip end supported to contact a second contact. When the power supply to the power supply means is cut off, the inversion portion is heated by Joule heat. And the tip of the base portion is separated from the second contact force by the second contact force.
  • a sealing and pumping-up device is the sealing and pumping-up device according to any one of claims 1 to 4, wherein the power supply means is provided in a vehicle.
  • a plug member that is detachably fitted into a cigar socket and electrically connected to a battery mounted on a vehicle is provided, and the current breaker is built in or integrally provided with the plug member. I do.
  • the air pressure feeding means is attached to and detached from a tire valve of a tire.
  • An adapter member connected to the tire so that the air generation source can communicate with the tire, and a surface portion of the adapter member is covered with a rubber composition or a resin material.
  • the sealing and pumping-up device is the sealing and pumping-up device according to any one of claims 1 to 6, wherein the sealing agent injecting means includes the sealing agent container. And a suction port for sucking the sealing agent from inside the sealing agent container and discharging the sealing agent sucked from the sealing agent container in a pressurized state and connected to the pneumatic tire.
  • a plurality of cylinders formed respectively, The sealing agent container force is sucked into the cylinder through the suction port when moving in the suction direction to expand the volume in the cylinder, and is disposed so as to be reciprocally movable in each of the plurality of cylinders.
  • the number of cylinders installed is 2N (N is a natural number) and the number of cylinders is set to 2N (N is a natural number) while rotating the pistons in the suction direction and the discharge direction.
  • the pistons are arranged in series along the axial direction, and the clutches of the pistons respectively arranged in N cylinders.
  • the phase difference between the point of attachment to the Kurantasha shift of the piston disposed respectively consolidated point and the rest of the N cylinders of the Kushafuto characterized by being set to 180 °.
  • the 2N cylinders in the sealing agent injection means are arranged in series along the axial direction of the crankshaft, and the N' cylinders are arranged in the N cylinders.
  • the sealing agent injection means includes: An inlet for connecting and sucking the sealing agent from inside the sealing agent container, and an outlet for discharging the sealing agent sucked from inside the sealing agent container in a pressurized state and connected to the pneumatic tire were formed.
  • the sealant in the cylinder is And a plurality of the pistons, each of which is connected to a piston for discharging the agent from the discharge port while pressurizing the agent, is rotated by the power from the driving means, and alternately moves the piston in the suction direction and the discharge direction. Having a crankshaft to be moved,
  • the number of cylinders to be installed is 2N (N is a natural number), N of the 2N cylinders are arranged in series along the axial direction of the crankshaft, and the remaining N cylinders are Along with a circumferential direction centered on the shaft, the cylinders are arranged in series at different portions from the N cylinders, and connection points of the pistons respectively arranged in the N cylinders with the crankshaft. And a phase difference between a connection point of each of the pistons disposed in the remaining N cylinders and the crankshaft is set to 0 °.
  • N cylinders out of 2N are arranged in series along the axial direction of the crankshaft, and the remaining N cylinders are Along with a circumferential direction centered on the crankshaft, arranged in series at a portion different from the N cylinders, and a connection point between a piston and a crankshaft arranged in each of the N cylinders.
  • a pump-up device is a tire pump-up device for supplying pressurized air into a pneumatic tire to increase the internal pressure of the pneumatic tire.
  • an electromagnetic current breaker is used that operates a movable piece for power cutoff, which is a magnetic material, by electromagnetic force to cut off power supply to the power supply means. It is characterized in.
  • the maximum current value substantially equal to the rated current value that can be supplied by the battery of the vehicle.
  • This current can be supplied to the driving means, and the air pressure feeding means can be operated by the power from the driving means, respectively, so that the operation efficiency of the air pressure feeding means can be increased and the pump-up time for the tire can be shortened efficiently.
  • the pump-up device supplies pressurized air into the pneumatic tire.
  • a tire pump-up device that boosts the internal pressure of a pneumatic tire by supplying air to the pneumatic tire, and drives the air pump by receiving external power.
  • a power supply connected to a battery mounted on a vehicle to supply power to the drive, and an overcurrent exceeding an allowable current value to the power supply.
  • an overcurrent interrupting means for interrupting the power supply to the power supply means when the power supply means flows, and as an overcurrent interrupting means, when an overcurrent flows to the power supply means, a power interruption formed by a metal material is performed.
  • a heat-actuated current breaker for interrupting power supply to the power supply means by deforming a movable piece for use with Joule heat is used.
  • the value of current is supplied to the driving means, and the air pressure feeding means can be operated by the power from this driving means, so that the operation efficiency of the air pressure feeding means is increased and the pump-up time for the tires is shortened efficiently. it can.
  • a pump-up device is the pump-up device according to claim 10, wherein the current breaker includes the movable piece formed of a metal plate in a plate shape. The base end of the piece is connected to the first contact and the tip is supported so as to be in contact with the second contact.
  • the movable piece is bent by Joule heat. Characterized in that it is deformed in the direction and is separated from the second contact point.
  • a pump-up device is the pump-up device according to claim 10, wherein the current breaker is formed in a plate shape from a metal material having a thermal expansion property.
  • a movable portion provided with a base portion supported in a cantilevered state, and a reversing portion supported in a curved state between a base end and a front end of the base portion; The base end of the part is connected to the first contact and the tip is supported so as to be in contact with the second contact, and when the power supply to the power supply means is cut off, the reversing part is bent by the Joule heat.
  • the pump-up device according to claim 13 of the present invention is the pump-up device according to any one of claims 9 to 12, wherein the power supply means is fitted to and disengaged from a cigarette socket provided in a vehicle.
  • a plug member is provided so as to be fitted and electrically connected to a battery mounted on a vehicle, and the current breaker is built in or integrated with the plug member.
  • a pump-up device is the pump-up device according to any one of claims 9 to 13, wherein the air pressure feeding means is detachable from a tire valve of a tire. And an adapter member for connecting an air generation source to the tire, and a surface portion of the adapter member is covered with a rubber composition or a resin material.
  • the air pressure feeding means includes a suction port for sucking outside air and a compressed air.
  • the piston is connected to each other, and rotated by the power from the driving means, and the piston is moved alternately in the suction direction and the discharge direction.
  • a shaft
  • the number of the cylinders to be installed is 2N (N is a natural number), the 2N cylinders are arranged in series along the axial direction of the crankshaft, and the pistons respectively arranged in the N cylinders Wherein the phase difference between the connection point with the crankshaft and the connection point with the crankshaft of each of the pistons disposed in the remaining N cylinders is set to 180 °. .
  • the 2N cylinders are arranged in series along the axial direction of the crankshaft, and the pistons respectively arranged in the N cylinders are arranged.
  • N the phase difference between the connection point with the crankshaft and the connection point between the pistons arranged in the remaining N cylinders and the crankshaft.
  • a pump-up device is the pump-up device according to any one of claims 9 to 14, wherein the air pressure feeding means includes a suction port for sucking outside air and a compressed air.
  • the air pressure feeding means includes a suction port for sucking outside air and a compressed air.
  • the piston is connected to each other, and rotated by the power from the driving means, and the piston is moved alternately in the suction direction and the discharge direction.
  • a shaft
  • the number of cylinders to be installed is 2N (N is a natural number), N of the 2N cylinders are arranged in series along the axial direction of the crankshaft, and the remaining N cylinders are Along with a circumferential direction centered on the shaft, the cylinders are arranged in series at different portions from the N cylinders, and connection points of the pistons respectively arranged in the N cylinders with the crankshaft. And the remaining N cylinders, respectively.
  • the phase difference between the piston and the connection point with the crankshaft is set to 0 °.
  • N cylinders out of 2N are arranged in series along the axial direction of the crankshaft, and the remaining N cylinders are connected to the crankshaft.
  • the cylinders are arranged in series in a different direction from the N cylinders along the circumferential direction around the crankshaft, and the connection points of the pistons arranged in the N cylinders with the crankshafts and the rest are arranged.
  • operation can be performed with a current having a maximum current value substantially equal to the rated current value that can be supplied by the vehicle battery.
  • FIG. 1 is a configuration diagram showing a sealing-pump-up device according to a first embodiment of the present invention.
  • FIG. 2A is a side sectional view showing an example of a power breaker applied to the sealing′pump-up device shown in FIG. 1.
  • FIG. 2B is a side cross-sectional view showing one example of a power breaker applied to the sealing′pump-up device shown in FIG. 1.
  • FIG. 3A is a front view and a side view showing an example of an air compressor applied to the sealing and pumping-up device shown in FIG. 1.
  • FIG. 3B is a front view and a side view showing an example of an air compressor applied to the sealing and pumping-up device shown in FIG. 1.
  • FIG. 4A is a front view and a side view showing a modification of the air compressor applied to the sealing and pumping-up device shown in FIG. 1.
  • FIG. 4B is a front view and a side view showing a modified example of the air compressor applied to the sealing and pumping-up device shown in FIG. 1.
  • FIG. 5 is a configuration diagram showing a sealing 'pump-up device according to a second embodiment of the present invention.
  • FIG. 6A is a side sectional view showing an example of a power breaker applied to the sealing′pump-up device shown in FIG. 5.
  • FIG. 6B is a side sectional view showing one example of a power breaker applied to the sealing device shown in FIG. 5;
  • FIG. 7A is a side sectional view showing a modified example of the power breaker applied to the sealing′pump-up device shown in FIG. 5.
  • FIG. 7B is a side sectional view showing a modified example of the power breaker applied to the sealing′pump-up device shown in FIG. 5.
  • FIG. 8A is a perspective view showing the configuration of the power breaker shown in FIG. 7.
  • FIG. 8B is a perspective view showing the configuration of the power breaker shown in FIG. 7.
  • FIG. 9 is a configuration diagram showing a sealing-pump-up device according to a third embodiment of the present invention.
  • FIG. 10 is a configuration diagram showing an example of a conventional sealing 'pump-up device.
  • FIG. 1 shows a sealing-pump-up device according to a first embodiment of the present invention.
  • tire mounted on a vehicle such as an automobile punctures
  • the sealing / pump-up device 30 uses a sealing agent to replace the tire and the tire without replacing the wheel. It repairs and re-pressurizes (pumps up) the internal pressure to the specified pressure.
  • the sealing-pump-up device 30 includes a box-shaped casing 32 as its outer shell, and inside the casing 32, an air-conditioner presser 34 as a supply source of pressurized air. Is arranged.
  • a liquid agent container 40 accommodating a sealing agent 36 is disposed in the casing 32.
  • the liquid agent container 40 contains a sealing agent in an amount (for example, 400 g to 600 g) specified for each type of tire to be repaired by the sealing pump device 30.
  • the liquid container 40 is formed of a resin such as polyethylene or polypropylene! RU
  • liquid agent container 40 a container having a pressure resistance much lower than the pressure (specified pressure) specified as the internal pressure of a general pneumatic tire and having a special airtight structure can be used. There is no need to use.
  • the liquid agent container 40 is provided with an air receiving port 39 on the top plate and a liquid agent discharge port 38 on the bottom plate on the lower end side.
  • the air compressor 34 is provided with an air suction section 41 and an air supply section 43.
  • the air suction section 41 and the air supply section 43 have an air suction port 42.
  • the air supply port 44 is open.
  • the air compressor 34 has a compression capacity capable of compressing air at atmospheric pressure to about 0.5 MPa to 1.OMPa.
  • the air supply port 44 is connected to one end of a common pipe 46 that also provides a pressure, such as a pressure-resistant hose and a pipe, and the other end of the common pipe 46 is connected to an air switching valve 48.
  • One air switching valve 48 A three-way (3-port) solenoid valve having a suction port 49 and two discharge ports 50, 51 is used.
  • a common pipe 46 is connected to a suction port 49 of an air switching valve 48, and a discharge port 50 is connected to a first air pipe 54 having a sufficient pressure resistance such as a pressure-resistant hose or a metal pipe.
  • a first air pipe 54 having a sufficient pressure resistance such as a pressure-resistant hose or a metal pipe.
  • One end is connected to the other end, and one end of a second air pipe 56 that also has a force such as a fluid hose is connected to the other discharge port 51.
  • a predetermined safety coefficient usually 2.0 to 5.0.
  • the specified pressure of the tire 140 varies widely depending on the type of vehicle and the like, but is normally set appropriately in the range of 0.20 MPa to 0.30 MPa for passenger cars.
  • the other end of the second air pipe 56 is connected to the air receiving port 39 of the liquid agent container 40.
  • the discharge port 51 of the air switching valve 48 communicates with the air receiving port 39 of the liquid container 40 through the second air pipe 56.
  • one end of a liquid injection pipe 58 is connected to the liquid discharge port 38 of the liquid container 40 from a low-pressure fluid hose or the like.
  • the sealing / pump-up device 30 includes a gas-liquid switching valve 60 having two suction ports 61 and 62 and one discharge port 63.
  • the other end of the injection pipe 58 and the other end of the first air pipe 54 are connected to the two suction ports 61 and 62 of the gas-liquid switching valve 60, respectively.
  • One end of a joint hose 66 is connected to the discharge port 63 of the gas-liquid switching valve 60.
  • an adapter 68 that can be screwed to the tire valve 142 of the tire 140 is arranged.
  • As the joint hose 66 a joint hose having the same pressure resistance as the common pipe 46 and the first air pipe 54 is used. Specifically, it is preferable to use a pressure-resistant hose reinforced with nylon or the like as the joint hose 66.
  • the adapter 68 that receives pressure from compressed air be formed of a metal material such as stainless steel.
  • a metal material such as stainless steel.
  • the surface portion of the adapter 68 is formed of a metal material, air that has been pressurized and becomes hot flows through the adapter 68 when the tire 140 is pumped up. Worker tire adapter 68 The adapter 68, which has become hot, may cause burns when the user removes it from the bush 142.
  • the surface portion of the adapter 68 is covered with a resin material or a rubber composition having heat resistance and heat insulation, and high-temperature compressed air is supplied to the adapter 68 for a long time. Even after distribution, the surface is kept at a sufficiently low temperature (for example, below 40 ° C).
  • the adapter 68 has a hollow core portion through which compressed air flows is formed of a metal material such as stainless steel, copper, or brass, and has a coating covering the surface portion of the hollow core portion.
  • the part is formed of a resin material such as fluorine resin, nylon, polypropylene, polyethylene, ABS, or a rubber composition such as natural rubber or silicone rubber.
  • the thickness of the coating is preferably 0.2 mn! 44 mm (more preferably, lmn! ⁇ 3 mm). That is, if the thickness of the coating is less than 0.2 mm, the heat insulation will be insufficient and the surface temperature of the adapter 68 will not be sufficiently reduced, and the thickness of the coating will be less than 4 mm. This is because even if the thickness is increased, it hardly contributes to the effect of reducing the surface temperature of the adapter 68, but merely increases the size of the adapter 68.
  • the resin material forming the covering portion nylon or fluorine resin is particularly preferred from the viewpoint of heat resistance and heat insulation, and silicone rubber is particularly preferred as the rubber composition.
  • the covering portion is formed in a tube shape by using a heat-shrinkable resin material, the covering portion is covered on the outside of the core portion, and the covering portion is heated to the shrinkage temperature by hot air or the like.
  • the covering portion can be easily fixed by being brought into close contact with the core portion.
  • such a covering portion may be molded by loading a hollow core portion as an insert core into a molding mold and injecting molten resin or rubber into the molding mold.
  • the sealing / pump-up device 30 is provided with an operation panel 70 having a start / stop button 72 and a gas-liquid switching button 74 outside the casing 32, and a current breaker 76 and a power supply circuit inside the casing 32. 78 are provided.
  • a two-core power cable 80 is connected to the power circuit 78 via a current breaker 76.
  • a plug 82 is provided that is detachable from a cigar socket (not shown) installed in the vehicle. By inserting the plug 82 into the cigar socket, the plug 82 is inserted into the vehicle. powered by The supplied battery power can be supplied to the power supply circuit 78.
  • the power supply circuit 78 controls the operations of the air compressor 34 and the switching valves 48 and 60 according to the operation of the start / stop button 72 and the gas-liquid switching button 74, respectively.
  • the electromagnetic current breaker 76 includes a fixed piece 88, a movable piece 90, and an electromagnet 92 as shown in FIG.
  • the fixed piece 88 and the movable piece 90 are each formed in a plate shape from a conductive material such as iron, and the movable piece 90 is bent at the center in the longitudinal direction so as to be substantially V-shaped. It is supported so as to be swingable between a power-on position (see FIG. 2A) and a cut-off position (see FIG. 2B) around a support shaft 94 provided in the vicinity.
  • the movable piece 90 is always urged toward the energized position by an urging member (not shown) such as a torsion coil panel provided on the support shaft portion 94.
  • an urging member such as a torsion coil panel provided on the support shaft portion 94.
  • the electromagnet 92 includes a cylindrical bobbin 96 having an open end, and a coil 98 formed by winding a copper wire around the outer peripheral surface of the bobbin 96.
  • an electromagnetic pole 102 formed in a plug shape by a ferromagnetic material is press-fitted and fixed in the opening.
  • a plunger 100 formed of a magnetic material such as iron in a cylindrical shape is inserted into the bobbin 96 so as to be slidable in the axial direction, and a coiled spring is provided between the plunger 100 and the electromagnetic pole 102.
  • the member 104 is interposed in a compressed state.
  • the electromagnet 92 presses the plunger 100 against the bottom surface inside the bobbin 96 by the urging force of the spring member 104 as shown in FIG. 2A. It is held at the suction position.
  • the plunger 100 is disengaged by the electromagnetic force generated by the coil 98 as shown in FIG.
  • the suction position force also slides to the suction position on the inner peripheral side of the coil 98.
  • a magnetic path is formed between the electromagnetic pole 102 and the plunger 100 through a conductive layer (not shown) provided on the inner peripheral surface of the bobbin 96, and a strong magnetic force is generated in the electromagnetic pole 102.
  • the magnetic force acts on the other end of the movable piece 90. Due to the magnetic force from the electromagnetic pole 102, the other end of the movable piece 90 is sucked by the electromagnetic pole 102 and swings to the energized position and the cutoff position.
  • the current breaker 76 has a pair of external contacts 106 and 108 and connects one end of the winding forming the coil 98 to the fixed piece 88.
  • one external contact 106 is electrically connected to the other end of the winding of the coil 98, and the other external contact 108 is electrically connected to the movable piece 90.
  • the current breaker 76 is connected in series to one conductor of the power cable 80 via a pair of external contacts 106 and 108. This allows the vehicle battery power to be supplied to the power supply circuit 78 through the power cable 80 when the movable piece 90 is in the energized position, and the power cable 80 is non-conductive when the movable piece 90 is in the cutoff position. As a result, the power supply to the power supply circuit 78 is also shut off.
  • the electromagnetic pole 102 of the electromagnet 92 is configured as a permanent magnet, and after the movable piece 90 is attracted and adsorbed, the movable piece 90 can be held at the cut-off position even when the current to the coil 98 is cut off. ing.
  • the current breaker 76 is provided with a reset switch (not shown). When a predetermined reset operation is performed on the user reset switch S, the movable piece 90 is separated from the electromagnetic pole 102 and the energized position is set. It is possible to return to.
  • the air compressor 34 includes a drive motor 84 and an air pump 86 configured as a reciprocating two-cylinder type.
  • the air pump 86 is provided with a crankshaft 284 rotatably supported by bearings (not shown), and is provided with two cylinders 286, 288 arranged in series along the axial direction of the crankshaft 284. Have been.
  • a suction port 290 and a discharge port 292 are formed, and the suction port 290 and the discharge port 292 are provided in the suction direction and the discharge direction, respectively.
  • a suction valve 294 and a discharge valve 296 that allow fluid (air) to flow therethrough are arranged to be openable and closable.
  • the suction port 290 and the discharge port 292 of the cylinders 286 and 288 are connected to the air suction port 42 and the air supply port 44 through pipes 298 and 300, respectively.
  • the pistons 320, 322 are respectively housed in the cylinders 286, 288 so as to be able to reciprocate along the radial direction about the axis S of the crankshaft 284, respectively. ing. These pistons 320 and 322 are provided in a suction direction (arrow V direction) for expanding the internal volume of the compression chambers 287 and 289 and a discharge direction (arrow ⁇ direction) for reducing the internal volume of the compression chambers 287 and 289. ).
  • the crankshaft 284 is formed with three crank portions 302, 304, and 306 each formed in a disk shape.
  • the crank portion 302 and the crank portion 304 are connected by a crank pin 308, and the crank portion 304 and the crank portion 306 are connected by a crank pin 310.
  • the distance from the axis S to the crankpin 308 and the distance to the crankpin 310 are equal, and the phase difference between the crankpin 308 and the crankpin 310 in the rotation direction about the axis S is It is set to 180 °.
  • Two pistons 320 and 322 are connected to a crankshaft 284 via connecting rods 312 and 314.
  • the connecting rods 312, 314 are relatively rotatably connected to the pistons 320, 322 via piston pins 328 provided on the one end force pistons 320, 322, and the other end is connected to the crankshaft 284.
  • the two cylinders 286, 288 are arranged in series along the axial direction of the crankshaft 284, and the crankpin 308, which is the connection point of the piston 320 with the crankshaft 284, and the crankpin 308, Since the phase difference with the crankpin 310, which is the connection point with the crankshaft 284, is set to 180 °, when one piston 320 moves in the suction direction in the cylinder 286, the other piston 322 Moving in the discharge direction within 288 and when one piston 320 reaches one dead center in cylinder 286, the other piston 322 reaches the other dead center in cylinder 286.
  • a direct-current drive motor 84 is connected to a crankshaft 284 via a speed reducer 326 so that torque can be transmitted.
  • Drive motor 84 When the DC power is supplied by the power supply circuit 78 (see FIG. 1), the torque corresponding to the current value is transmitted to the crankshaft 284 via the speed reducer 326, and the crankshaft 284 is rotated in one direction.
  • the piston diameter is preferably set to 10 mm to 40 mm and the piston stroke force is set to mm to 30 mm.
  • the drive motor 84 for example, RS550VC7525 manufactured by Mabuchi can be used. Under these conditions, when the air pump 86 is operated using a battery (rated voltage 12V, rated current 15A) mounted on the vehicle as a power source, if the piston diameter is smaller than 10mm, the piston will have 320,322 force. When the piston diameter exceeds Omm, the driving torque required for rotating the crankshaft 284 increases, and the rotational speed of the crankshaft 284 cannot be increased. Sufficient compressed air cannot be obtained from the pistons 320 and 322.
  • the piston stroke is smaller than 3 mm, the air compression ratio in the compression chambers 287, 289 is insufficient, and the required air pressure cannot be obtained. If the piston stroke exceeds 30 mm, the crankshaft 284 Since the driving torque required at the time of rotation increases, the rotation speed of the crankshaft 284 cannot be increased, and a sufficient amount of compressed air discharged from the pistons 320 and 322 cannot be obtained.
  • the sealing agent 36 contains rubber latex such as SBR (styrene butadiene rubber) latex and rubber latex of a mixture of NB, and has a resin-based adhesive added in the form of an aqueous dispersant or an aqueous emulsion thereof.
  • rubber latex such as SBR (styrene butadiene rubber) latex and rubber latex of a mixture of NB
  • the sealing agent 36 includes a fibrous material or a whisker, such as polyester, polypropylene, and glass, or a filler (filament), which also has a strength such as calcium carbonate and bonbon black, in order to enhance the sealing property against puncture holes. 1) may be mixed, and silicate or polystyrene particles may be mixed to stabilize the sealing performance.
  • an antifreezing agent such as glycol, ethylene glycol, propylene glycol, an antifoaming agent, a pH adjuster, and an emulsifier are generally added to the sealing agent 36.
  • an antifreezing agent such as glycol, ethylene glycol, propylene glycol, an antifoaming agent, a pH adjuster, and an emulsifier are generally added to the sealing agent 36.
  • the gas-liquid switching valve 60 is a force that opens the first air piping 54. Since the suction port 61 is closed by the air switching valve 48, the gas is supplied into the first air piping 54 by the air compressor 34. Pressurized air does not flow
  • the power supply circuit 78 operates the air compressor 34 to send pressurized air into the liquid agent container 40 through the common pipe 46 and the second air pipe 56.
  • the power supply circuit 78 switches the communication destination of the discharge port 63 of the gas-liquid switching valve 60 from the suction port 62 to the suction port 61 when the operating force of the air compressor 34 has passed for a predetermined time.
  • the inside of the liquid material container 40 communicates with the inside of the tire 140 through the liquid injection pipe 58 and the joint hose 66, and the sealing agent 36 is pushed out of the liquid material container 40 by its own weight and the static pressure of the pressurized air.
  • the agent 36 is injected into the tire 140 through the injection pipe 58 and the joint hose 66.
  • the sealing agent 36 is pushed out of the liquid agent container 40 under the static pressure of the pressurized air.
  • the static pressure of the gas layer above the sealing agent 36 in the liquid agent container 40 is set according to the viscosity of the sealing agent 36, and may be considerably lower than the specified pressure of the tire 140.
  • the static air pressure in the liquid container 40 is set in the range of 0.05 MPa to 0.15 MPa according to the viscosity of the sealing agent 36, and the higher the viscosity of the sealing agent 36 in this range, Set to high pressure.
  • the completion of the injection of the predetermined amount of the sealing agent 36 may be determined by using the time of the injection starting force as a parameter. Also, a transparent window is provided in the liquid agent container 40, and through this window, the worker can use the sealing agent 36. Make sure to check the injection volume.
  • the power supply circuit 78 switches the communication destination of the discharge port 63 of the gas-liquid switching valve 60 from the suction port 62 to the suction port 61, and in synchronization with this, the air switching valve The communication destination of the 48 suction ports 49 is switched from the discharge port 51 to the discharge port 50. Accordingly, the pressurized air supplied from the air compressor 34 is started to be supplied into the tire 140 through the first air pipe 54 and the joint hose 66, and the internal pressure of the tire 140 is increased to expand the tire 140.
  • the operator confirms that the internal pressure of the tire 140 has reached the specified pressure by a pressure gauge (not shown) provided in the air compressor 34, and then presses the start / stop button 72 again. Press.
  • the power supply circuit 78 stops supplying power to the air compressor 34. The operator then removes the adapter 68 from the tire valve 142 and disconnects the joint hose 66 from the tire 140.
  • the worker Immediately after the tire 140 is completely pressurized to the specified pressure, the worker performs preliminary running over a certain distance using the tire 140 into which the sealing agent 36 has been injected. As a result, the sealing agent 36 is uniformly diffused into the tire 140, and the puncturing hole is filled with the sealing agent 36 to close the puncturing hole.
  • the operator again screwes the adapter 68 of the joint hose 66 to the tire valve 142 and operates the air compressor 34 to pressurize the tire 140 to a specified internal pressure.
  • the tire 140 can be used to travel within a predetermined upper limit speed (for example, 80 km).
  • the load of the drive motor 84 abnormally rises due to the failure of the air pump 86, or the leakage from the power supply circuit 78 If an overcurrent that exceeds the allowable current flows through the power cable 80, the overcurrent also flows through the current breaker 76 that is connected in series to the power cable 80. Therefore, if the overcurrent continues to flow through the power cable 80 for more than the predetermined response time, the current breaker 76 causes the movable piece 90 at the energized position to swing by the electromagnet 92 to the interrupted position, thereby causing the power cable 80 to swing. The knotting power of the vehicle through the power supply also cuts off the power supply to the power supply circuit 78.
  • the allowable current value (breaking current value) when the current breaker 76 cuts off the power supply to the power supply circuit 78 with the knotting force is determined by the rated current value of the current breaker (fuse) on the vehicle side.
  • 15A it is preferable to set it to 14A to 18A, and it is even more preferable to set it to 15A to 17A.
  • the current breaker 76 does not interrupt the power supply of the battery power for preferably 100 msec (more preferably, 10 msec) even when a current (starting current) of about 7 OA flows.
  • the response to overcurrent is set.
  • the power supply circuit 78 when an overcurrent flows to the power supply circuit 78 connected to the vehicle battery through the power supply cable 80, the power supply circuit 78
  • the current interrupter 76 By using an electromagnetic current breaker 76 as an overcurrent interrupting means for interrupting the power supply of the current, the current interrupter 76 has better detection accuracy and responsiveness to overcurrent than a fuse type current interrupter. Since it is easy to set a desired level and the variation in detection accuracy and responsiveness among individual products can be reduced, the rated current value of the current breaker 76 is approximately equal to the rated current value of the current breaker on the vehicle side.
  • the detection accuracy and responsiveness of the electromagnetic current breaker 76 for overcurrent should be set sufficiently higher than the current breaker on the vehicle side in advance.
  • Contact fluff when an overcurrent exceeding the allowable current value flowed in the power supply circuit 78 can be operated reliably earlier timing than the current interrupter 76 vehicle side of the current interrupter is activated.
  • the current of the maximum current value substantially equal to the rated current value that can be supplied by the battery of the vehicle is supplied to the drive motor 84 of the air conditioner 34.
  • the pump 86 can be driven by the power from the drive motor, so that the operation efficiency of the air pump 86 is increased and the injection time and the pump-up time of the sealing agent 36 into the tire 140 by the sealing and pump-up device 30 are reduced. In this case, it is not necessary to replace consumable parts such as fuses. Work can be simplified.
  • the two cylinders 286, 288 of the air pump 86 are arranged in series along the axial direction of the crankshaft 284, and the piston 320 is connected to the crankshaft 284.
  • the phase difference between the crankpin 308, which is the point, and the crankpin 310, which is the connection point between the piston 322 and the crankshaft 284, is set to 180 °, so that one piston 320 moves in the suction direction in the cylinder 286.
  • the moving direction of the piston 320 and the moving direction of the piston 322 in the air pump 86 are always opposite, and the piston 320 and the piston 322 have one dead center at the same timing. And the other reaches the dead point, so that the two pistons 320 and 322 as a whole can operate with the inertia forces always balanced, and the countershaft to cancel the inertia forces of the pistons 320 and 322 on the crankshaft 284 There is no need to provide
  • one piston 320 of the air pump 86 moves in the discharge direction, and the moving load of the piston 320 in the cylinder 286 relatively increases.
  • the remaining one piston 322 moves in the suction direction, and the moving load of the piston 322 in the cylinder 288 decreases.
  • the sealing and pumping-up device 30 According to the sealing and pumping-up device 30 according to the present embodiment, the efficiency of supplying the compressed air to the pneumatic tire is increased, and the time for injecting the sealing agent 36 into the tire 140 and the time for pumping-up are improved. Can be shortened.
  • the sealing / pump-up device 30 only the case where the air pump 86 is a two-cylinder in-line arrangement is used as the air pump 86.
  • the number of cylinders is 2N (N is (Natural number) (for example, 4 or 6 cylinders), and these cylinders are arranged in series in a row along the axial direction of the crankshaft. If the phase difference between the connection point (crank pin) and the connection point (crank pin) between the remaining N pistons and the crankshaft is set to 180 °, the N pistons can be set in the same manner as the air pump 86 of the present embodiment.
  • FIG. 4 shows an air conditioner presser 330 applicable to the sealing / pump-up device 30 (see FIG. 1) instead of the air conditioner presser 34 shown in FIG.
  • the air compressor 330 according to this modified example, the same parts as those of the air compressor 34 shown in FIG.
  • the air compressor 330 includes a drive motor 84 and an air pump 331, and the air pump 331 is configured as a reciprocating two-cylinder type.
  • the air pump 331 is provided with a crankshaft 332 rotatably supported by bearings (not shown), and is provided with two cylinders 334 and 336 extending along the radial direction of the crankshaft 332.
  • the one cylinder 334 and the other cylinder 336 are arranged at different portions along the circumferential direction around the axis S of the crankshaft 332, and the axis of the cylinder 334 and the cylinder 336 are The opening angle around the center S is 180 °.
  • compression chambers 338 and 340 are formed.
  • an inlet 342 and an outlet 344 are opened, and the inlet 342 and the outlet 344 are provided with an inlet valve 294 and an outlet valve 296, respectively.
  • pistons 346 and 348 are housed in the cylinders 334 and 336, respectively, so as to be able to reciprocate along the radial direction about the axis S of the crankshaft 332.
  • the crankshaft 332 is formed with two disk-shaped crank portions 350 and 352, and the crank portion 350 and the crank portion 352 are connected by a crank pin 358.
  • the two pistons 346, 348 are connected to the crankshaft 332 via connecting rods 354, 356.
  • the two connecting rods 354, 356 are connected at one end to the pistons 346, 348 via piston pins 360, 362 provided on the pistons 346, 348 so as to be relatively rotatable.
  • crankshaft 332 when the crankshaft 332 is rotated by the torque from the drive motor 84, the rotational motion of the crankshaft 332 is converted into reciprocating motion of the pistons 346 and 348 along the radial direction about the axis S. 346 and 348 move (reciprocate) alternately in the suction direction (arrow V direction) and discharge direction (arrow E direction) in the cylinders 334 and 336.
  • the two cylinders 334 and 336 are arranged so as to extend in the radial direction of the crankshaft 332, and the opening angle between one cylinder 334 and the other cylinder 336 is set to 180 °. And screws installed in the two cylinders 334 and 336, respectively.
  • the piston diameter (diameter) is preferably set to 10 mm to 40 mm and the piston stroke rotor S is set to 4 mm to 30 mm.
  • the external power also sucks air into the cylinders 334, 336 and the air flows in the cylinders 334, 336.
  • the discharge process of discharging from the cylinders 334 and 336 can be performed simultaneously by the same number (one) of pistons, and the inertia force of the two pistons 346 and 348 Since the apparatus can be operated in a balanced state, there is no need to provide the crankshaft 332 with a counterweight for canceling the inertial force of the pistons 346 and 348.
  • the sealing and pumping-up device 30 using the air pump 331 can also increase the efficiency of supplying compressed air to the tire 20 and efficiently inject the sealing agent 36 into the tire 20 and the pump-up time. Can be shortened to
  • N is a natural number
  • N cylinders are arranged in series in a row along the axial direction of the crankshaft, and the remaining N cylinders are centered on the axis S of the crankshaft 332.
  • the opening angle between the one cylinder 334 and the other cylinder 336 is 180 °, but the center is about the axis S of the N cylinders and the remaining N cylinders. Even when the opening angle is larger than 0 ° and smaller than 180 ° (V-shaped arrangement), the crankpin to which N pistons are connected and the crankpin to which the remaining N pistons are connected are also connected.
  • the phase difference is set to 0 °, the rotational resistance of the crankshaft for reciprocating the 2N pistons is kept substantially constant, and the countershaft can be omitted to reduce the weight of the crankshaft. Obtained as in the case.
  • FIG. 5 shows a sealing-pump-up device 110 according to a second embodiment of the present invention.
  • the same parts as those of the sealing' pump-up device 30 according to the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.
  • the difference between the sealing and pumping-up device 110 according to the present embodiment and the sealing and pumping-up device 30 according to the first embodiment is that, as shown in FIG. It is arranged in a plug 82 that can be removed from the socket, and a bimetal type current breaker 112 is used.
  • the bimetal-type current breaker 112 includes a casing 116 and a bimetal 118 disposed in the casing 116.
  • the bimetal 118 is formed in a leaf spring shape by laminating two metal plates 120 and 122 having different thermal expansion coefficients from each other, so that the bimetal 118 is convex downward when the current breaker 112 is not operated. It is curved.
  • the casing 116 is provided with metal supporting portions 119 for supporting the vicinity of both ends of the bimetal 118 with a pair of projections.
  • the bimetal 118 has a movable contact 124 at one end and an internal contact 126 at the other end, and the movable contact 124 and the internal contact 126 are electrically connected to each other by the metal 118.
  • the casing 116 is provided with a fixed contact 128 facing the movable contact 124. When the current breaker 112 is not operated, the fixed contact 128 is provided as shown in FIG. 6A. It is supported so as to be pressed against. [0097] Further, the current breaker 112 is provided with a pair of external contacts 130 and 132 outside the casing 116, and one of the external contacts 130 is electrically connected to an internal contact 126 in the casing 116.
  • the other external contact 132 is electrically connected to a fixed contact 128 in the casing 116.
  • the current breaker 112 is connected in series to one conductor disposed in the plug 82 via its external contacts 130 and 132. Thus, when the current breaker 112 is not operated, the battery power of the vehicle can be supplied to the power supply circuit 78 through the plug 82 and the power supply cable 80.
  • the bimetal 118 is heated by Joule heat generated by the electric resistance of the bimetal 118 itself. At this time, if an overcurrent exceeding the allowable current continues to flow through the bimetal 118 for more than a predetermined response time, the thermal expansion of one metal plate 120 constituting the bimetal 118 causes the thermal expansion of the other metal plate 122 to occur. The expansion causes distortion due to expansion. As a result, the bimetal 118 is deformed from a downwardly convex shape (conducting shape) to an upwardly convex shape (cutoff shape), and separates the movable contact 124 from the fixed contact 128. .
  • the current breaker 112 is provided with a reset switch 134.
  • the reset switch 134 When the user presses the reset switch 134 after the current breaker 112 is activated, the bimetal 118 deformed into a cutoff shape by the reset switch 134 is provided. The central part is pressed downward, and the bimetal 118 is restored to the conductive shape.
  • the allowable current value (cutoff current value) when the current breaker 112 cuts off the battery power and the power supply to the power supply circuit 78 is the same as the case of the current breaker 76.
  • the rated current value of the breaker (fuse) is 15 A, it is more preferable to set it to 14 A to 18 A, and it is more preferable to set it to 15 A to 17 A.
  • the responsiveness of the current breaker 112 is such that even if a current (starting current) of about 70 A flows, the power supply with a notable power is preferably performed over 100 msec (more preferably 10 msec). The responsiveness to overcurrent is set so as not to cut off the current.
  • the sealing 'pump-up device 110 is used.
  • a metal-type current breaker is used as an overcurrent cutoff means to cut off the power supply to the power supply circuit 78.
  • the current breaker 112 can easily set the detection accuracy and the responsiveness to the overcurrent to desired levels, respectively, as compared with the fuse-type current breaker. Since the variability between responsive products can be reduced, the rated current value of the current breaker 112 is set to be approximately equal to or slightly lower than the rated current value of the current breaker on the vehicle side.
  • the allowable current value Current value
  • the current breaker 112 can be reliably operated at a timing earlier than the current breaker on the vehicle side is operated.
  • the sealing 'pump-up device 110 basically the same effects as those of the sealing' pump-up device 30 according to the first embodiment can be obtained, and the common effect can be obtained.
  • the bimetal-type current breaker 112 is easier to miniaturize than the electromagnetic current breaker 76, so that the current breaker 112 is arranged in the plug 82, which facilitates the handling and resetting operation by the user.
  • a small-sized electromagnetic current breaker 76 according to the first embodiment is used, which is disposed in the plug 82 of the sealing / pump-up device 30 in the first embodiment, or It may be provided integrally with.
  • FIGS. 7 and 8 show a hot-wire type current breaker 150 applicable to the sealing-pump-up device 110 according to the second embodiment of the present invention, instead of the current breaker 112 shown in FIG. It is shown.
  • the current breaker 150 includes a casing 152 and a movable piece 154 disposed in the casing 152.
  • the movable piece 154 is formed in a generally rectangular thin plate shape from a metal material such as iron, stainless steel, or copper.
  • Movable piece 1 The base 54 is provided with a substantially rectangular base 156 at the distal end thereof, and the elongated plate-shaped reversing part 160 and the base in the width direction of the base 156 which also have a central force in the width direction of the base 156 extending toward the base end. Both ends force An elongated plate-shaped radius arm 158 extending toward the base end side is formed physically.
  • the width of the reversing portion 160 is wider than the radius arm 158, and the extension length from the base portion 156 is shorter than the radius arm 158.
  • a thick disk-shaped movable contact 162 is fixed to the upper surface side of the base portion 156.
  • the base end of the movable piece 154 is connected to the base end side (the left side in Fig. 7) inside the casing 152, and a block-shaped support for supporting the movable piece 154 in a cantilever state.
  • a portion 164 is provided, and a conductive plate 166 penetrating the support portion 164 along the vertical direction is provided.
  • the conductive plate 166 has a lower end protruding outside the casing 152, and an external contact 130 is connected to the lower end of the conductive plate 166.
  • a block-shaped connecting portion 167 is fixed to the conductive plate 166 at an intermediate portion along the vertical direction so as to extend in the width direction and the base end side, and has a width along the upper surface of the connecting portion 167.
  • a pair of grooves 168 that are cut inward from both ends in the direction are formed.
  • the movable piece 154 has the base ends of the pair of radius arms 158 abut against the upper surface of the connection part 167 and is fitted into the groove 168.
  • the conductive plate 166 is electrically connected to the movable piece 154.
  • the casing 152 has a step-shaped stop portion 170 formed at the base end side of the connecting portion 167 to be in contact with the base end portions of the pair of radius arms 158, respectively.
  • the support portion 164 has a slit-shaped fitting groove 172 in the front surface thereof.
  • the base end of the reversing section 160 is fitted and fixed in the fitting groove 172, and the base end of the reversing section 160 is in contact with the inner end of the fitting groove 172.
  • the length of the reversing portion 160 is such that the force at the rear end of the fitting groove 172 is longer than the shortest distance L to the tip of the reversing portion 160 (see FIG. 7A) by a predetermined length.
  • the reversing portion 160 is held in one of a curved shape (a conductive shape) that is convex upward and a curved shape that is a convex shape (blocking shape) downward.
  • the current breaker 150 is provided with a metal contact plate 174 at an end of the casing 152 opposite to the conductive plate 166, and the contact plate 174 is The tip penetrates the casing 152 along the vertical direction, and is inserted into the casing 152.
  • a fixed contact portion 176 bent toward the base end (conductive plate 166) is formed on the base. The fixed contact portion 176 faces the movable contact 162 disposed at the tip of the movable piece 154 along the vertical direction.
  • An external contact 132 is connected to the lower end of the contact plate 174 extending to the outside of the casing 152.
  • a circular slide hole 178 is formed in the top plate portion of the casing 152, and a reset button 180 is slidably inserted into the slide hole 178.
  • the reset button 180 is for returning the reversing portion 160 in the cut-off shape (see FIG. 7B) to the energized shape (see FIG. 7A).
  • the reset button 180 is connected to the standby position shown by a solid line in FIG. It is slidably supported between the reset positions shown.
  • a leaf spring 184 that presses against the flange portion 182 formed on the distal end side of the reset button 180 and constantly urges the reset button 180 to the standby position is disposed.
  • the movable piece 154 is distorted along the radial direction. As a result, when an overcurrent exceeding the allowable current continues to flow through the movable piece 154 for more than a predetermined response time, the reversing portion 160 reverses the bending direction and changes from the energized shape to the cutoff shape. As shown in FIG. 7B, the movable piece 154 has the reversing portion 160 in a blocking shape, so that the radius arm 158 is bent downward and the movable contact 162 is separated from the fixed contact portion 176 of the contact plate 174.
  • the power supply to the power supply circuit 78 is also cut off by the battery power of the vehicle.
  • the reset button 180 presses the center of the reversing portion 160 deformed into the interrupting shape downward, and the reversing portion 160 is restored to the conducting shape.
  • the movable contact 162 contacts the fixed contact portion 176 of the contact plate 174.
  • the allowable current value (cutoff current value) when the current breaker 150 cuts off the battery power and the power supply to the power supply circuit 78 is the same as the case of the current breaker 112.
  • the responsiveness of the current breaker 150 is preferably set so as not to interrupt the power supply from the battery for 100 ms ec (more preferably, 10 msec). Is set.
  • the detection accuracy and responsiveness to overcurrent are set to desired levels, respectively, as compared with the fuse-type current breaker. And the variation between the individual products with high detection accuracy and responsiveness can be reduced, so that the rated current value of the current breaker 150 is almost equal to or slightly smaller than the rated current value of the current breaker on the vehicle side. ⁇ ⁇ ⁇ Even if the current is set to a lower value, if an overcurrent that exceeds the allowable current value (cutoff current value) flows through the power supply circuit 78, the current breaker 112 will be activated as compared to the current breaker on the vehicle side. Also, it can be operated quickly and reliably.
  • FIG. 9 shows a tire sealing and pumping-up device according to a second embodiment of the present invention.
  • the sealing and pumping-up device 230 like the first and second sealing 'pumping-up devices 30, 110, repairs the tire and the tire without replacing the wheel with a sealing agent when the tire is punctured.
  • the internal pressure is pumped up to a predetermined reference pressure.
  • the same components as those of the first and second sealing' pump-up devices 30 and 110 are denoted by the same reference numerals and description thereof will be omitted.
  • the sealing-pump-up device 230 includes a box-shaped casing 232 as an outer shell portion thereof.
  • a liquid supply pump 236 for supplying the sealing agent 36 is provided.
  • a discharge port 235 is provided for discharging the contained sealing agent 16 to the outside.
  • the liquid supply pump 236 has a liquid agent inlet 238 and a liquid agent supply port 240, each of which is directed to the outside.
  • the liquid agent suction port 238 is connected to a discharge port 235 of the liquid agent container 234 via a connection pipe 242.
  • the liquid supply pump 236 draws in the sealing agent 36 in the liquid agent container 234 through the connection pipe 242 during operation, and discharges the sealing agent 36 from the liquid agent supply port 240 while pressurizing the sealing agent 36.
  • the liquid supply pump 236 has a liquid material supply port 240 connected to a suction port 62 of the gas-liquid switching valve 60 via a liquid supply pipe 244.
  • the air supply port 44 of the air compressor 34 is connected to the suction port 61 of the gas-liquid switching valve 60 via the air pipe 246.
  • the liquid agent container 234 also sucks the sealing agent 36 by the liquid supply pump 236, and supplies the sealing agent 36 into the tire 140 through the joint hose 66.
  • the structure to send is adopted. For this reason, only the static pressure of the sealing agent 36 acts on the liquid container 234, and the internal pressure (positive pressure) of the tire 140 does not directly act on the liquid container 234.
  • the liquid supply pump 236 basically has the same structure as the air compressors 34 and 330 according to the first embodiment (two-cylinder reciprocating type). However, since the sealing agent 36 has the property of an incompressible fluid, the setting of the opening / closing timing of the intake valve and the exhaust valve, the stroke of the piston, the rotation speed of the crankshaft, and the like are different from those of the air compressors 34 and 330. .
  • the operator screws the adapter 68 to the tire valve 142 of the tire 140 and connects the joint hose 66 to the punctured tire 140.
  • the operator inserts the plug 82 at the tip of the power cable 80 into a socket or the like of a cigarette lighter of the vehicle, and then presses the activation Z stop button 74 of the operation panel 70.
  • the power supply circuit 78 connects the suction port 62 of the gas-liquid switching valve 60 to the discharge port 63 and operates the liquid supply pump 236 in conjunction with this.
  • the supply pump 236 draws the sealing agent 36 in the liquid agent container 234 into the cylinders 250 and 252.
  • the sealing agent 36 sucked into the cylinders 250 and 252 is supplied into the tire 140 through the liquid supply pipe 244, the gas-liquid switching valve 60 and the joint hose 66 while the pistons 266 and 268 pressurize the calorie.
  • the power supply circuit 78 stops the liquid supply pump 236 and switches the communication destination of the discharge port 63 of the gas-liquid switching valve 60 from the suction port 62 to the suction port 61. After that, the air compressor 34 is operated. Thereby, the compressed air supplied from the air compressor 34 is supplied into the tire 140 through the air pipe 246, the gas-liquid switching valve 60, and the joint hose 66, and the internal pressure of the tire 140 is increased to expand the tire 140.
  • the operator confirms that the internal pressure of the tire 140 has reached the specified pressure by a pressure gauge (not shown) provided in the air compressor 34, and then presses the start / stop button 72 again. Press.
  • the power supply circuit 78 stops supplying power to the air compressor 34.
  • the worker removes the adapter 68 from the tire valve 142, disconnects the joint hose 66 from the tire 140, performs a preliminary run as in the case of the first embodiment, and then performs sealing / pump-up as necessary.
  • the device 230 pumps up the tire 140 to the specified pressure.
  • the liquid supply pump 236 according to the embodiment of the present invention described above has basically the same structure as the air compressors 34 and 330 according to the first embodiment (the connection point between the N pistons and the crankshaft).
  • the phase difference force between the remaining N pistons and the connection point with the crankshaft is 180 ° in the case of the serial arrangement, and 0 ° in the case of the opposed arrangement, so that the air according to the first embodiment
  • one piston moves in the discharge direction, and even if the moving load of this piston in the cylinder increases relatively, at this time, the remaining one piston sucks.
  • the sealing-pump-up device 230 According to the present embodiment, the supply efficiency of the sealing agent 36 to the pneumatic tire by the liquid supply pump 236 is increased, and the injection time of the sealing agent 36 into the tire 140 is increased. In addition, the efficiency of supplying compressed air to the tire 140 by the air compressor 34 can be increased, and the pump-up time for the tire 140 can be shortened efficiently.
  • a current breaker 76 is disposed between the plug 82 and the power supply circuit 78.
  • the current The power supply to the power supply circuit 78 is cut off. Therefore, according to the sealing 'pump-up device 230 according to the present embodiment, similarly to the sealing' pump-up device 30 according to the first embodiment, the maximum current that is substantially equal to the rated current value that can be supplied by the battery of the vehicle.
  • the sealing / pump-up device 230 instead of the current breaker 76 between the plug 82 and the power supply circuit 78, the power breakers 112 and 150 in the plug 82 Either one may be arranged and the overcurrent may be interrupted by the power breakers 112 and 150.
  • one of the current breakers 76, 112 and 150 is arranged in the plug 82, and The overcurrent may be interrupted by the power interrupters 112 and 150.
  • an air compressor 330 (see FIG. 4) may be used instead of the air compressor 34 to supply compressed air to the tire 140 into which the sealing agent 36 has been injected.
  • the air compressors of Examples C and D can obtain approximately twice as much compressed air as Comparative Example 1 under both no-load and loaded conditions, and are required at this time.
  • the driving current is only about 1.5 times that of Comparative Example 1.
  • the driving current required at this time was reduced by the comparative example. It can be reduced to about 75% of 2.
  • the current value (maximum current value) of the drive current rises to nearly 20A.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)

Abstract

Il est prévu un disjoncteur fonctionnant en amont du disjoncteur installé dans un véhicule en présence de surintensité, de même qu’un moyen d’injection de produit d’étanchéité et un moyen d’injection d'air sous pression sur un courant pouvant être alimenté par une batterie du véhicule et sensiblement égal à la valeur de courant nominal. Un dispositif d’injection (30) fait appel à un disjoncteur électromagnétique (76) comme moyen de coupure en cas de surintensité pour couper l’alimentation d’un circuit d’alimentation (78) lorsqu’un courant trop fort traverse le circuit d’alimentation (78) connecté à la batterie d’un véhicule. On peut régler la précision de détection de surintensité et la réaction à cette même surintensité du disjoncteur (76) plus facilement comme on veut qu’avec des disjoncteurs à fusible, et l’on peut réduire les écarts de précision et de réaction à la détection entre les différents produits. C’est la raison pour laquelle, même si la valeur de courant nominal du disjoncteur (76) est réglée sensiblement égale ou légèrement inférieure à la valeur de courant nominal du disjoncteur de véhicule, on peut utiliser le disjoncteur (76) de manière infaillible avec un minutage plus court que celui du disjoncteur de véhicule lorsqu’un courant trop fort, dépassant la valeur admissible, traverse le circuit d’alimentation (78).
PCT/JP2005/008856 2004-05-19 2005-05-16 Dispositif d’injection de produit d’etancheite et dispositif d’injection Ceased WO2005110825A1 (fr)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
JP2004-149369 2004-05-19
JP2004149369 2004-05-19
JP2004-151707 2004-05-21
JP2004151707 2004-05-21
JP2004-294494 2004-10-07
JP2004294494A JP2006009778A (ja) 2004-05-21 2004-10-07 ポンプアップ装置及びシーリング剤注入装置
JP2004294495A JP2006002747A (ja) 2004-05-19 2004-10-07 シーリング・ポンプアップ装置及びポンプアップ装置
JP2004-294495 2004-10-07

Publications (1)

Publication Number Publication Date
WO2005110825A1 true WO2005110825A1 (fr) 2005-11-24

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Application Number Title Priority Date Filing Date
PCT/JP2005/008856 Ceased WO2005110825A1 (fr) 2004-05-19 2005-05-16 Dispositif d’injection de produit d’etancheite et dispositif d’injection

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WO (1) WO2005110825A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007144668A (ja) * 2005-11-24 2007-06-14 Bridgestone Corp タイヤのパンク修理装置
EP1918085A4 (fr) * 2006-05-30 2009-07-08 Kabushikigaisha Katazen Procede d' injection d' une resine en solution liquide dans une chambre a air, dispositif d' injection et composition de resine elastique remplissant ladite chambre
ITTO20090657A1 (it) * 2009-08-21 2011-02-22 Tek Global Srl Contenitore per un liquido sigillante e kit di riparazione comprendente tale contenitore
WO2013120261A1 (fr) * 2012-02-16 2013-08-22 Jhou Wen-San Dispositif de compression d'air monté sur un véhicule
CN106567825A (zh) * 2016-10-27 2017-04-19 高磊 数控充气泵语音指导操作系统及方法

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JPH07193989A (ja) * 1993-12-28 1995-07-28 Hino Motors Ltd 過電圧抑圧回路
JPH08275373A (ja) * 1995-03-31 1996-10-18 Kokusan Denki Co Ltd 過電流保護装置
JPH08337105A (ja) * 1995-06-12 1996-12-24 Tsuneshige Kobayashi 手をふれずにタイヤにエアを注入できる車
JPH0995111A (ja) * 1995-07-24 1997-04-08 Aruma Trading Kk タイヤ寿命延長剤の注入装置
JP3210863B2 (ja) * 1995-07-11 2001-09-25 住友ゴム工業株式会社 パンクシーリング剤及びタイヤのシーリング・ポンプアップ装置
JP2003109580A (ja) * 2001-09-28 2003-04-11 Sanyo Electric Co Ltd 過電流又は加熱制限素子及びこの素子を用いた電池

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07193989A (ja) * 1993-12-28 1995-07-28 Hino Motors Ltd 過電圧抑圧回路
JPH08275373A (ja) * 1995-03-31 1996-10-18 Kokusan Denki Co Ltd 過電流保護装置
JPH08337105A (ja) * 1995-06-12 1996-12-24 Tsuneshige Kobayashi 手をふれずにタイヤにエアを注入できる車
JP3210863B2 (ja) * 1995-07-11 2001-09-25 住友ゴム工業株式会社 パンクシーリング剤及びタイヤのシーリング・ポンプアップ装置
JPH0995111A (ja) * 1995-07-24 1997-04-08 Aruma Trading Kk タイヤ寿命延長剤の注入装置
JP2003109580A (ja) * 2001-09-28 2003-04-11 Sanyo Electric Co Ltd 過電流又は加熱制限素子及びこの素子を用いた電池

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007144668A (ja) * 2005-11-24 2007-06-14 Bridgestone Corp タイヤのパンク修理装置
EP1918085A4 (fr) * 2006-05-30 2009-07-08 Kabushikigaisha Katazen Procede d' injection d' une resine en solution liquide dans une chambre a air, dispositif d' injection et composition de resine elastique remplissant ladite chambre
ITTO20090657A1 (it) * 2009-08-21 2011-02-22 Tek Global Srl Contenitore per un liquido sigillante e kit di riparazione comprendente tale contenitore
EP2286984A1 (fr) * 2009-08-21 2011-02-23 TEK GLOBAL S.r.l. Récipient pour fluides hermétique et kit de réparation comprenant un tel récipient
US8453684B2 (en) 2009-08-21 2013-06-04 Tek Global S.R.L. Sealing fluid canister, and repair kit comprising such a canister
WO2013120261A1 (fr) * 2012-02-16 2013-08-22 Jhou Wen-San Dispositif de compression d'air monté sur un véhicule
CN104105590A (zh) * 2012-02-16 2014-10-15 周文三 车载用空气压缩机装置
CN104105590B (zh) * 2012-02-16 2016-08-24 周文三 车载用空气压缩机装置
CN106567825A (zh) * 2016-10-27 2017-04-19 高磊 数控充气泵语音指导操作系统及方法

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