JP2011131546A - Sealing and pumping-up device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sealing and pumping-up device improved in separability of a cap member when pressed by pressurized air. <P>SOLUTION: The pressurized air discharged from the upper end of a holding part 38 presses the inside face of the cap member 60 toward a sealant 32. A top plate 64 is formed of a material having larger bending modulus compared to a cylindrical part 62. Thus, the deformation of the top plate 64 is suppressed, the top plate 64 effectively transmits the pressed force pressed by the pressurized air to the cylindrical part 62. This improves the separability of the cap member 60 when pressed by the pressurized air. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention provides a sealing for increasing the internal pressure of a pneumatic tire by injecting a sealing agent for sealing a puncture hole of a punctured pneumatic tire into the pneumatic tire and then supplying pressurized air into the pneumatic tire. -It relates to a pump-up device.

  Patent Document 1 describes a sealing agent unit that is attached to a sealing agent container that contains a sealing agent for repairing a punctured tire. The sealing agent unit is provided with a cap member that hermetically closes an air flow path through which pressurized air and a sealing agent flow path through which the sealing agent flows are provided in the sealing agent unit.

  Then, by pressing the cap member with pressurized air supplied from the air flow path, the cap member is detached from the boss portion of the sealing agent unit to release the air flow path and the sealing agent flow path. As a result, the sealing agent pressed by the pressurized air is supplied to the punctured tire through the sealing agent passage.

JP 2009-23225 A

  However, in the conventional configuration, when the cap member is pressed by the pressurized air, the cap member is deformed by the pressing force of the pressurized air, and the detachment force is not effectively transmitted to the boss portion (holding portion). Can be considered.

  An object of the present invention is to improve the detachability of the cap member when pressed by pressurized air in consideration of the above fact.

  The sealing / pump-up device according to claim 1 of the present invention contains a sealing agent for sealing a puncture hole of a punctured pneumatic tire, and is formed with a discharge port for discharging the sealing agent. And a connecting portion to which the discharge port of the liquid agent container is connected, and a pressurized air passing through the holding portion provided inside the connecting portion and feeding toward the liquid agent container connected to the connecting portion flows. An injection unit formed with a pressurized air path, a sealing agent extruded by the pressurized air and a gas-liquid passage for sending pressurized air to a punctured pneumatic tire, and the liquid agent attached to the holding unit. A cap member for isolating the pressurized air passage and the gas-liquid passage from a sealing agent accommodated in a container, and the cap member has an outer peripheral surface of the holding portion. And lifting in-cylinder unit, closes the opening of the tubular portion, the top plate is difficult to deform than the tubular portion, characterized in that is provided.

  According to the above configuration, when sealing the puncture hole of the punctured pneumatic tire, first, the pressurized air is flowed into the pressurized air passage, and the pressurized air is sent toward the liquid agent container connected to the connecting portion. . The pressurized air sent toward the liquid agent container presses a cap member that isolates the pressurized air passage and the gas-liquid passage from the sealing agent accommodated in the liquid agent container.

  When the cap member is pressed by the pressurized air, the cylindrical portion of the cap member is released from the holding portion, and the cap member is detached from the holding portion.

  When the cap member is detached from the holding portion, the pressurized air is sent to the sealing agent accommodated in the liquid agent container. And the sealing agent pressed by pressurized air is sent out to the pneumatic tire punctured through the gas-liquid passage.

  Here, the cap member is composed of a cylindrical portion held on the outer peripheral surface of the holding portion, and a top plate that closes the opening of the cylindrical portion and is less likely to deform than the cylindrical portion.

  With this configuration, since the deformation of the top plate is suppressed even when the top plate is pressed by the pressurized air, the top plate effectively transmits the pressing force pressed by the pressurized air to the cylindrical portion. Is released from the holding portion, and the cap member is detached from the holding portion.

  Thus, the detachability of the cap member when pressed by the pressurized air can be improved by effectively transmitting the pressing force pressed by the pressurized air to the cylindrical portion.

The sealing / pump-up device according to claim 2 of the present invention is characterized in that, in claim 1, the top plate of the cap member is formed of a material having a higher bending elastic modulus than the cylindrical portion. And
According to the said structure, since the top plate of a cap member is shape | molded with the material with a large bending elastic modulus compared with a cylinder part, it can make a top plate hard to deform | transform from a cylinder part.

According to a third aspect of the present invention, the ceiling / pump-up device according to the first aspect is characterized in that the top plate of the cap member includes a reinforcing member that reinforces the top plate.
According to the above configuration, the top plate of the cap member includes the reinforcing member that reinforces the top plate. For this reason, a top plate can be made harder to deform | transform than a cylinder part.

According to a fourth aspect of the present invention, there is provided a sealing / pump-up device according to the first aspect, wherein the top plate of the cap member is thicker than the cylindrical portion.
According to the said structure, the plate | board thickness of the top plate of a cap member is thick compared with the cylinder part. For this reason, a top plate can be made harder to deform | transform than a cylinder part.

  The sealing / pump-up device according to a fifth aspect of the present invention is the sealing / pump-up device according to any one of the first to fourth aspects, wherein the top plate is formed with a protrusion that is inserted into the mouth of the gas-liquid passage. It is characterized by being.

  According to the said structure, the projection part inserted in the mouth part of a gas-liquid channel | path is formed in the top plate. For this reason, the cap member pressed by the pressurized air moves along the gas-liquid passage direction and detaches from the holding portion. As described above, by restricting the moving direction of the cap member, the separation performance of the cap member can be stabilized.

According to the sealing and pump-up device of the first aspect of the present invention, the detachability of the cap member can be improved.
According to the sealing and pump-up device of claim 2 of the present invention, the top plate can be made more difficult to deform than the cylindrical portion.

According to the sealing and pump-up device of the third aspect of the present invention, the top plate can be made more difficult to deform than the cylindrical portion.
According to the sealing and pump-up device of claim 4 of the present invention, the top plate can be made more difficult to deform than the cylindrical portion.

  According to the sealing / pump-up device of claim 5 of the present invention, the detachment performance of the cap member can be stabilized.

1 is a cross-sectional view showing a sealing / pump-up device according to a first embodiment of the present invention. 1 is a cross-sectional view showing a sealing / pump-up device according to a first embodiment of the present invention. 1 is a cross-sectional view showing a sealing / pump-up device according to a first embodiment of the present invention. It is the schematic block diagram which showed the structure of the sealing and pump-up apparatus which concerns on embodiment of this invention. 1 is a cross-sectional view showing a sealing / pump-up device according to a first embodiment of the present invention. 1 is a perspective view showing a sealing / pump-up device and a tire according to a first embodiment of the present invention. It is sectional drawing which showed the sealing and pump-up apparatus which concerns on 2nd Embodiment of this invention. It is sectional drawing which showed the sealing and pump-up apparatus which concerns on 3rd Embodiment of this invention.

  An example of the sealing / pump-up device according to the first embodiment of the present invention will be described with reference to FIGS. In addition, arrow UP shown in a figure shows the vertical direction upper direction.

  (overall structure)

  As shown in FIG. 6, a tire sealing / pump-up device 10 (hereinafter simply referred to as “sealing device”) according to an embodiment of the present invention is a pneumatic tire 14 (hereinafter referred to as a “car”) mounted on a vehicle such as an automobile. When the tire is simply punctured), the tire is repaired with the sealing agent 32 (see FIG. 1) and the internal pressure is re-pressurized (pumped up) to a predetermined reference pressure without replacing the tire and the wheel. )

  The sealing device 10 includes a compressor unit 12 as air supply means. The compressor unit 12 includes a motor, an air pump, a power circuit, and the like, and extends from the power circuit to the outside of the unit. An outgoing power cable (not shown) is provided.

  For example, by inserting a plug provided at the tip of the power cable into a socket of a cigarette lighter installed in the vehicle, power can be supplied to a motor or the like through a power circuit by a battery mounted on the vehicle. Here, the compressor unit 12 can generate pressurized air having a pressure (for example, 300 kPa or more) higher than a reference pressure defined for each type of the tire 14 to be repaired by the air pump.

  As shown in FIG. 1, the sealing device 10 is provided with a liquid agent container 18 containing a sealing agent 32 and an injection unit 20 to which the liquid agent container 18 is connected. A substantially cylindrical neck portion 26 protruding downward is integrally formed at the lower end portion of the liquid container 18.

  The neck portion 26 is formed to have a diameter smaller than that of the main body of the upper container, and a male screw 26 </ b> A is formed on the outer peripheral surface of the neck portion 26. A discharge port 30 for allowing the sealing agent 32 to flow out is formed at the lower end of the neck portion 26.

  In the liquid container 18 of the present embodiment, the anti-deterioration gas is sealed in the liquid container 18 together with the sealing agent 32 in order to prevent the sealing agent 32 from being deteriorated due to oxidation or the like.

  On the other hand, as shown in FIGS. 1 and 2, the injection unit 20 is provided with a columnar first columnar body 22 and an upper side of the first columnar body 22, which is larger than the first columnar body 22. A second columnar body portion 24 is provided as a cylindrical connecting portion having a diameter. Furthermore, an internal thread 24 </ b> A that is screwed into the external thread 26 </ b> A of the liquid container 18 is formed on the inner peripheral surface of the second columnar body 24.

  Further, a packing material 34 is provided between the bottom surface 28 and the neck portion 26 of the second columnar body portion 24 to prevent the sealing agent 32 from leaking between the liquid agent container 18 and the injection unit 20. Yes.

  Further, a cylindrical holding portion 38 formed by extending the first columnar barrel portion 22 upward is provided inside the cylindrical second columnar barrel portion 24. On the inside, a tubular tube body 42 is provided with a gap. Further, the upper end of the tubular body 42 protrudes above the upper end of the holding portion 38. And the gas-liquid channel | path 46 which sends out the sealing agent 32 and the pressurized air to the pneumatic tire 14 punctured by the tubular body 42 is formed.

  Specifically, one end of the gas-liquid passage 46 is constituted by the upper end of the tube body 42, and the other end of the gas-liquid passage 46 extends downward, bends in the middle, and from the side surface of the first columnar body 22. It is comprised by the front-end | tip of the tubular exit pipe body 50 which protrudes. And the base end part of the red joint hose 52 is connected to the outlet pipe 50 through the nipple (illustration omitted). Furthermore, a valve adapter 40 (see FIG. 6) is provided at the tip of the joint hose 52 so as to be detachably connected to a tire valve (not shown) of the tire 14.

  On the other hand, a space between the tube body 42 and the holding portion 38 is a pressurized air passage 54 through which the pressurized air fed toward the liquid container 18 flows. One end of the pressurized air passage 54 is constituted by the upper end of the holding portion 38, and the other end of the pressurized air passage 54 extends downward, bends in the middle, and is a side surface of the first columnar body portion 22. And a distal end of a tubular inlet tube 56 protruding from the opposite side of the outlet tube 50.

  And the base end part of the joint hose 58 is connected to the inlet pipe body 56 via the nipple (illustration omitted). And the front-end | tip part of the joint hose 58 is connected to the pressurized air exit (illustration omitted) of the compressor unit 12 (refer FIG. 6).

(Main part configuration)
Next, the cap member 60 that is attached to the holding portion 38 and isolates the pressurized air passage 54 and the gas-liquid passage 46 from the sealing agent 32 accommodated in the liquid agent container 18 will be described.

  As shown in FIG. 2, the cap member 60 includes a cylindrical cylindrical portion 62 and a top plate 64 that closes the opening of the cylindrical portion 62. Specifically, a top plate 64 is provided so as to cover the upper end surface of the cylindrical portion 62. And the inner peripheral surface of the cylinder part 62 and the outer peripheral surface of the holding part 38 overlap, and the convex part 68 is formed in the inner peripheral surface of the cylinder part 62 over the circumferential direction toward the holding part 38. In addition, a concave portion 66 into which the convex portion 68 is fitted is formed on the outer peripheral surface of the holding portion 38 in the circumferential direction.

  With this configuration, when the sealing device 10 is stored, the convex portion 68 of the cap member 60 fits into the concave portion 66 of the holding portion 38, and the cap member 60 is held by the holding portion 38 and accommodated in the liquid agent container 18. The pressurized air passage 54 and the gas-liquid passage 46 are isolated from the air.

  Further, the top plate 64 of the cap member 60 is formed of a material having a higher bending elastic modulus than the cylindrical portion 62. Specifically, the cap member 60 is integrally formed by two-color molding using two types of materials having different physical property values, and the top plate 64 is a material having a higher bending elastic modulus than the cylindrical portion 62. It is molded with.

  Further, the top plate 64 is formed with a protrusion 70 that is inserted into the mouth 48 of the gas-liquid passage 46. With this configuration, the cap member 60 moves along the direction of the gas-liquid passage 46.

(Action / Effect)
Next, an operation procedure for repairing the punctured tire 14 using the sealing device 10 according to the present embodiment will be described.

  As shown in FIG. 6, when puncture occurs in the tire 14, the operator connects the valve adapter 40 fixed to the distal end portion of the joint hose 52 to the tire valve (not shown) of the tire 14.

  Next, the compressor unit 12 is operated. As shown in FIG. 1, the pressurized air generated by the compressor unit 12 is discharged from the upper end of the holding portion 38 through the joint hose 58 and the pressurized air passage 54.

  As shown in FIG. 3, the pressurized air released from the upper end of the holding portion 38 presses the inner surface of the cap member 60 toward the sealing agent 32.

  Here, as described above, the top plate 64 is formed of a material having a higher bending elastic modulus than the cylindrical portion 62. For this reason, the top plate 64 effectively transmits the pressing force pressed by the pressurized air to the cylindrical portion 62 without being deformed as indicated by a two-dot chain line shown in FIG. Further, the cylindrical portion 62 is formed of a material having a lower bending elastic modulus than the top plate 64. Therefore, the cylindrical portion 62 is deformed by being pressed by the pressurized air, and the convex portion 68 formed on the cylindrical portion 62 is separated from the concave portion 66 formed on the holding portion 38.

  As shown in FIGS. 4 and 5, the top plate 64 effectively transmits the pressing force pressed by the pressurized air to the cylindrical portion 62, and the cylindrical portion 62 is pressed and deformed by the pressurized air. The cap member 60 moves along the direction of the gas-liquid passage 46 and is detached from the holding portion 38 by the convex portion 68 formed in the portion 62 being separated from the concave portion 66 formed in the holding portion 38.

  When the cap member 60 is detached from the holding portion 38, the pressurized air enters the liquid agent container 18 and floats above the sealing agent 32 to form a space (air layer) on the sealing agent 32 in the liquid agent container 18. To do. The sealing agent 32 pressurized by the air pressure from the air layer is injected into the pneumatic tire 14 through the gas-liquid passage 46 and the joint hose 52.

  When all the sealing agent 32 is discharged through the gas-liquid passage 46 and the joint hose 52, the pressurized air is injected into the tire 14 through the gas-liquid passage 46 and the joint hose 52.

  Next, as shown in FIG. 6, when the operator confirms that the internal pressure of the tire 14 has become the specified pressure by the pressure gauge 16 provided in the compressor unit 12, the operator turns off the power switch 28. The compressor unit 12 is stopped and the valve adapter 40 is removed from the tire valve.

  The worker travels preliminarily for a certain distance (for example, 10 km) using the tire 14 injected with the sealing agent 32 within a certain time after the completion of the inflation of the tire 14. As a result, the sealing agent 32 is uniformly diffused inside the tire 14, and the sealing agent 32 is filled in the puncture hole, thereby closing the puncture hole.

  After completion of the preliminary traveling, as shown in FIG. 6, the operator connects the valve adapter 40 provided at the tip of the joint hose 52 to the tire valve of the tire 14, and remeasures the internal pressure of the tire 14 with the pressure gauge 16. If the specified pressure is not reached, the compressor unit 12 is restarted to pressurize the tire 14 to the specified internal pressure. Thereby, the puncture repair of the tire 14 is completed, and the tire 14 can be used to travel at a constant speed or less (for example, 80 km / h or less) within a certain distance range.

  As described above, the top plate 64 is formed of a material having a higher bending elastic modulus than the cylindrical portion 62, so that the pressing force that the top plate 64 is pressed by the pressurized air is effectively applied to the cylindrical portion 62. introduce. Thereby, the detachability of the cap member 60 when pressed by pressurized air can be improved.

  In addition, since the top plate 64 is formed of a material having a higher bending elastic modulus than the cylindrical portion 62, the top plate 64 is prevented from being deformed by the hydraulic pressure of the sealing agent 32 during storage. The deformation of 62 is suppressed. Thereby, the sealing performance between the cap member 60 and the holding portion 38 when the sealing device 10 is stored can be improved.

  Moreover, since the projection part 70 inserted in the mouth part 48 of the gas-liquid channel | path 46 is formed in the top plate 64, the moving direction of the cap member 60 is controlled by the gas-liquid channel | path 46 direction. Thereby, the removal performance of the cap member 60 can be stabilized.

  Although the present invention has been described in detail with respect to specific embodiments, the present invention is not limited to such embodiments, and various other embodiments are possible within the scope of the present invention. It is clear to the contractor. For example, in the above embodiment, the top plate 64 is formed of a material having a large flexural modulus in order to make the top plate 64 more difficult to deform than the cylindrical portion 62. However, the present invention is not particularly limited to this. The top plate 64 may be made harder to deform than the cylindrical portion 62 by changing other parameters such as a hard material and a soft material) and a plate thickness.

  Next, an example of the sealing / pump-up device according to the second embodiment of the present invention will be described with reference to FIG. In addition, about the same member as 1st Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  As shown in FIG. 7, in the first embodiment, the top plate is provided so as to cover the upper end surface of the cylindrical portion, but in the second embodiment, the inner periphery of the cylindrical portion 80 of the cap member 84. A top plate 82 is provided so as to close the upper end of the surface.

  Next, an example of the sealing / pump-up device according to the third embodiment of the present invention will be described with reference to FIG. In addition, about the same member as 1st Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  As shown in FIG. 8, unlike the first embodiment, the cylindrical portion 92 of the cap member 90 and the top plate 94 are integrally formed of the same material, and the top plate 94 is overlapped on the lower surface of the top plate 94. As shown, a disk-shaped reinforcing member 96 is fixed with an adhesive or the like (not shown).

DESCRIPTION OF SYMBOLS 10 Sealing apparatus 14 Tire 18 Liquid agent container 20 Injection | pouring unit 24 2nd columnar trunk | drum (connection part)
30 Discharge port 32 Sealing agent 38 Holding part 46 Gas-liquid passage 54 Pressurized air path 60 Cap member 62 Cylinder part 64 Top plate 70 Projection part 80 Cylinder part 82 Top plate 90 Cap member 92 Cylinder part 94 Top plate 96 Reinforcement member

Claims (5)

A liquid agent container in which a sealing agent for sealing a puncture hole of a punctured pneumatic tire is contained, and a discharge port for discharging the sealing agent is formed;
Pressurization in which pressurized air flows through the connecting portion to which the discharge port of the liquid agent container is connected and the holding portion provided inside the connecting portion and is sent toward the liquid agent container connected to the connecting portion. An injection unit formed with an air passage, and a gas-liquid passage for sending the sealing agent extruded by the pressurized air and the pneumatic tire punctured with the pressurized air;
A cap member attached to the holding part and separating the pressurized air passage and the gas-liquid passage from a sealing agent accommodated in the liquid container;
A sealing / pump-up device in which the cap member is provided with a cylindrical portion held on the outer peripheral surface of the holding portion, and a top plate that closes an opening of the cylindrical portion and is less likely to deform than the cylindrical portion.   The sealing / pump-up device according to claim 1, wherein the top plate of the cap member is formed of a material having a higher bending elastic modulus than the cylindrical portion.   The ceiling / pump-up device according to claim 1, wherein the top plate of the cap member includes a reinforcing member that reinforces the top plate.   The sealing / pump-up device according to claim 1, wherein the top plate of the cap member is thicker than the cylindrical portion.   The sealing / pump-up device according to any one of claims 1 to 4, wherein a protrusion that is inserted into a mouth portion of the gas-liquid passage is formed on the top plate.

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