JP2009208343A - Sealing pump up device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sealing pump up device capable of reducing load applied to a liquid vessel. <P>SOLUTION: The sealing pump up device supplies a sealant 32 into a tire, and then a compressor unit supplies compressed air from the compressed air port 48 of a flow passage switching mechanism 20 into the flow passage switching mechanism 20. The compressed air supplied into the flow passage switching mechanism 20 flows out of an outflow port 52 and is supplied into the tire through a hose member 54. An inflow port 38 of the flow passage switching mechanism 20 is provided with a check valve 38 allowing flow of only fluid, suppressing inflow of the compressed air into the liquid vessel 18. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a sealing pump-up for injecting a sealing agent for sealing a punctured pneumatic tire into the pneumatic tire and then supplying pressurized air into the pneumatic tire to increase the internal pressure of the pneumatic tire. Relates to the device.

  Patent Document 1 describes a sealing / pump-up device that, when a pneumatic tire is punctured, repairs the tire with a sealing agent and pumps the tire internal pressure up to a specified pressure without replacing the tire and the wheel. Yes.

  According to this sealing / pump-up device, pressurized air is supplied to the inside of the liquid agent container containing the sealing agent by the air supply means. And the sealing agent is pushed out of the liquid agent container by this pressurized air, and is sent into the tire through the hose member.

Japanese Patent Laid-Open No. 9-118779

However, pressurized air is supplied into the liquid container. In order to prevent the liquid container from being damaged by the pressurized air (load), it was necessary to ensure the rigidity of the liquid container. For this reason, the liquid container has become an expensive part.
An object of the present invention is to reduce the load applied to the liquid agent container in consideration of the above fact.

  The sealing and pump-up device according to claim 1 of the present invention is provided with an air supply means for supplying pressurized air, and a first control member that permits only inflow of the pressurized air supplied from the air supply means. A flow path switching mechanism including a pressurized air inflow portion, an inflow portion provided with a second control member that allows only fluid inflow, and an outlet through which fluid can flow out, and a sealing agent accommodated therein And a liquid container that discharges a sealing agent from the discharge port when compressed, and a discharge port connected to the inflow portion provided in the flow path switching mechanism, and the flow path switching mechanism. And a hose member having a distal end portion connected to a tire valve of a pneumatic tire through a valve adapter.

  According to the above configuration, when the liquid agent container in which the sealing agent is accommodated is compressed, the sealing agent is supplied to the inside of the channel switching mechanism from the inflow portion of the channel switching mechanism through the discharge port. Here, a second control member is provided in the inflow portion. Since the second control member is configured to permit only the inflow of fluid, the sealing agent can pass through the inflow portion.

  Further, the sealing agent supplied to the inside of the flow path switching mechanism flows out from an outlet provided in the flow path switching mechanism, and is supplied into the tire through the hose member and the valve adapter and the tire valve. Here, since the 1st control member which permits only the inflow of pressurized air is provided in the pressurized air inflow part provided in the flow-path switching mechanism, a sealing agent flows out only from an outflow port.

  And an air supply means supplies pressurized air from the pressurized air inflow part of a flow-path switching mechanism to the inside of a flow-path switching mechanism. Further, the pressurized air supplied to the inside of the flow path switching mechanism flows out from the outlet provided in the flow path switching mechanism, and is supplied into the tire through the hose member via the valve adapter and the tire valve. . Here, since the second control unit that allows only the inflow of fluid is provided in the inflow portion of the flow path switching mechanism, the flow of pressurized air into the liquid agent container is suppressed.

  As a result, the pneumatic tire punctured by the sealing agent is repaired, and the internal pressure of the tire is increased, so that traveling at a constant speed or less (for example, 80 km / h or less) becomes possible.

  Thus, by providing the second control member at the inflow portion of the flow path switching mechanism to which the discharge port of the liquid agent container is connected, the flow of fluid from the flow path switching mechanism into the liquid agent container is suppressed. That is, since the pressurized air supplied by the air supply means is suppressed from flowing into the liquid agent container, the load applied to the liquid agent container can be reduced.

  The sealing / pump-up device according to a second aspect of the present invention is the first check valve according to the first aspect, wherein the first control member allows only the flow of the pressurized air into the flow path switching mechanism. Or it is a 1st on-off valve member, It is characterized by the above-mentioned.

According to the above configuration, the first check valve or the first on-off valve member provided in the pressurized air inflow portion permits only the inflow of pressurized air to the flow path switching mechanism. For this reason, the sealing agent does not enter the air supply means.
Thereby, a sealing agent can be flowed out from the outflow port provided in the flow-path switching mechanism, and can be supplied in a tire through a hose member.

  The sealing / pump-up device according to a third aspect of the present invention is the sealing / pump-up device according to the first or second aspect, wherein the second control member is a second check valve or a second opening / closing valve member that permits only the inflow of fluid. It is characterized by being.

According to the above configuration, the second check valve or the second opening / closing valve member provided in the inflow portion permits only the inflow of fluid to the flow path switching mechanism. For this reason, pressurized air does not enter the liquid agent container.
Thereby, the load added to a liquid agent container can be reduced.

  A sealing / pump-up device according to a fourth aspect of the present invention is characterized in that, in any one of the first to third aspects, the liquid container is formed in an accordion shape by an elastic member.

According to the said structure, the liquid agent container is shape | molded by the elastic member by the bellows shape. That is, by compressing the liquid agent container, the bellows-like bellows portion contracts and the sealing agent is discharged from the discharge port of the liquid agent container.
In this way, the sealing agent can be easily discharged from the discharge port by forming the liquid container into an accordion shape with the elastic member.

  According to the present invention, the load applied to the liquid agent container can be reduced.

  A sealing / pump-up device 10 according to an embodiment of the present invention will be described with reference to FIGS.

(overall structure)
FIG. 5 shows a sealing / pump-up device 10 according to an embodiment of the present invention. When a pneumatic tire (hereinafter simply referred to as “tire”) mounted on a vehicle such as an automobile punctures, the sealing / pump-up device 10 removes the tire and the wheel without replacing the tire and the wheel without using the sealing agent 32 ( 1), the internal pressure is re-pressurized (pumped up) to a predetermined reference pressure.

  The sealing / pump-up 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. A power cable (not shown) extending to the outside 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.

  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.

  The sealing / pump-up device 10 includes a liquid container 18 containing a sealing agent 32 (see FIG. 1), and a discharge port 26 through which the sealing agent 32 provided in the liquid container 18 discharges. A shaped channel switching mechanism 20 is provided.

  As shown in FIG. 1, the discharge port 26 is formed with a diameter smaller than that of the container main body portion above it. Further, an aluminum seal 30 for sealing the sealing agent 32 in the liquid agent container 18 is disposed at the opening (lower end) of the discharge port 26.

  Here, the liquid container 18 is made of various elastic resin materials having gas barrier properties, and the side surface is formed in a bellows shape so as to expand and contract in the vertical direction (the vertical direction shown in FIG. 1). Further, in the liquid container 18, a slightly larger sealing agent than a prescribed amount (for example, 200 g to 400 g) according to the type and size of the tire 14 (see FIG. 5) to be repaired by the sealing / pump-up device 10. 32 is filled.

  In the liquid agent container 18 of this embodiment, as shown in FIG. 1, the sealing agent 32 is filled in the liquid agent container 18 without a space without providing a space, but the sealing agent 32 is oxidized, nitrided, or the like. In order to prevent the deterioration due to the above, an inert gas such as Ar may be sealed in the liquid container 18 together with the sealing agent 32 at the time of shipment.

  Further, when the liquid agent container 18 is placed in an upright state with the discharge port 26 facing downward on the upper side of the flow path switching mechanism 20, the sealing agent 32 in the liquid agent container 18 is pressed against the aluminum seal 30 of the liquid agent container 18 by its own weight. It becomes a state.

(Main part configuration)
Only an inflow of fluid into the flow path switching mechanism 20 is allowed to an inflow port 36 provided on the upper surface 20A of the flow path switching mechanism 20 and connected to the discharge port 26 of the liquid agent container 18 by a nut 34. A check valve 38 is provided. A common flow path 40 communicating with the check valve 38 is provided below the check valve 38.

  With this configuration, as shown in FIG. 2, when the upper surface 18 </ b> A of the liquid agent container 18 is pressed downward, the bellows portion 18 </ b> B formed on the side surface contracts, and the sealing agent 32 accommodated inside breaks the aluminum seal 30. The sealing agent 32 flows out toward the inlet 36. Furthermore, the sealing agent 32 reaches the common flow path 40 through the check valve 38.

  On the other hand, as shown in FIG. 1, a pressure air hose 44 extending from the compressor unit 12 (see FIG. 5) is connected to one side surface 20 </ b> B of the flow path switching mechanism 20 via a joint coupler 46. A pressurized air port 48 as an inflow portion is provided. Further, a check valve 50 that permits only the inflow of pressurized air into the common flow path 40 is provided in the pressurized air port 48.

  Furthermore, the other side surface 20C opposite to the one side surface 20B of the flow path switching mechanism 20 is provided with an outlet 52 that allows the fluid to flow out from the common flow path 40. The base end portion of the joint hose 54 is connected. Note that a valve adapter 56 (see FIG. 5) that is detachably connected to the tire valve 16 of the tire 14 is provided at the distal end portion of the joint hose 54.

(Action / Effect)

  Next, an operation procedure for repairing the punctured tire 14 using the sealing / pump-up device 10 according to the present embodiment will be described.

  As shown in FIGS. 4 and 5, when puncture occurs in the tire 14, first, the operator connects the liquid agent container 18 to the inlet 36 of the flow path switching mechanism 20 with the nut 34. Next, the valve adapter 56 provided at the tip of the joint hose 54 is screwed to the tire valve 16 of the tire 14, and the common flow path 40 (see FIG. 1) is communicated with the tire 14 through the joint hose 54.

  Then, as shown in FIG. 2, the operator presses the upper surface 18A of the liquid agent container 18 downward. As a result, the bellows portion 18B of the liquid agent container 18 contracts, the sealing agent 32 housed inside breaks the aluminum seal 30, and the sealing agent 32 flows out toward the inlet 36. Furthermore, the sealing agent 32 reaches the common flow path 40 through the check valve 38.

  The sealing agent 32 reaching the common flow path 40 flows out from the outflow port 52, passes through the joint hose 54, and is supplied into the pneumatic tire 14 through the valve adapter 56 and the tire valve 16.

  Here, conventionally, the tire valve 16 is provided with a core member (not shown) so that the air in the tire 14 does not flow out of the tire valve 16. However, since the core member is pressed by the pressure of the sealing agent 32 and the tire valve 16 is opened, the sealing agent 32 can be supplied into the tire without removing the core member.

  Further, since the check air valve 48 is provided in the pressurized air port 48 provided to face the outflow port 52, the sealing agent 32 does not enter the compressor unit 12 (see FIG. 5). .

  Further, as shown in FIG. 3, after the liquid container 18 is pushed out and the sealing agent 32 is supplied to the tire 14, the operator turns on the switch 60 (see FIG. 5) of the compressor unit 12 to supply pressurized air. generate. As shown by the arrows in FIG. 3, the pressurized air flows from the pressurized air port 48 into the flow path switching mechanism 20 via the pressure hose 44 and reaches the common flow path 40 through the check valve 50. The pressurized air that reaches the common flow path 40 flows out from the outlet 52, passes through the joint hose 54, and is supplied into the pneumatic tire 14 through the valve adapter 56 and the tire valve 16. Here, since a check valve 38 that allows only the inflow of fluid is provided at the inlet 36 of the flow path switching mechanism 20, the flow of pressurized air into the liquid agent container 18 is suppressed. .

  Next, as shown in FIG. 5, when the operator confirms that the internal pressure of the tire 14 has become the specified pressure by the pressure gauge 62 provided in the compressor unit 12, the operator turns off the switch 60 and turns on the compressor. The unit 12 is stopped and the valve adapter 56 is removed from the tire valve 16.

  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 completing the preliminary traveling, the operator reconnects the valve adapter 56 of the joint hose 54 to the tire valve 16 of the tire 14, and re-measures the internal pressure of the tire 14 with the pressure gauge 62. The compressor unit 12 is restarted to pressurize the tire 14 to a 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.

  Thus, the check valve 38 provided at the inlet 36 suppresses the flow of pressurized air generated by the compressor unit 12 into the liquid agent container 18. Thereby, the load added to the liquid container 18 can be reduced.

Further, by reducing the load applied to the liquid container 18, the thickness of the liquid container 18 can be reduced, and further, the space can be saved and the weight can be reduced by reducing the thickness.
Moreover, an inexpensive material can be selected as the material of the liquid container 18 by reducing the load applied to the liquid container 18.

  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-described embodiment, check valves 38 and 50 are provided at the inlet 36 and the pressurized air port 48 to prevent the back flow of the fluid. Instead, an openable / closable valve member may be provided. .

  In this case, the sealing valve and the pressurized air can be supplied into the tire by opening the opening / closing valve member when allowing the flow into the common flow path, and closing the opening / closing valve member at other times. it can.

  Moreover, in the said embodiment, although the non-return valve 38, the common flow path 40, and the non-return valve 50 were provided integrally, it is good also as a different body instead of this.

It is sectional drawing which showed the liquid agent container, the flow-path switching mechanism, etc. which were provided in the sealing pump-up apparatus which concerns on embodiment of this invention. It is sectional drawing which showed the liquid agent container, the flow-path switching mechanism, etc. which were provided in the sealing pump-up apparatus which concerns on embodiment of this invention. It is sectional drawing which showed the liquid agent container, the flow-path switching mechanism, etc. which were provided in the sealing pump-up apparatus which concerns on embodiment of this invention. It is the perspective view which showed the liquid agent container, the flow-path switching mechanism, etc. which were provided in the sealing pump-up apparatus which concerns on embodiment of this invention. 1 is a schematic configuration diagram showing a sealing / pump-up device according to an embodiment of the present invention.

Explanation of symbols

10 Sealing / pump-up device 12 Compressor unit (air supply means)
14 Tire 16 Tire valve 18 Liquid container 20 Flow path switching mechanism 26 Discharge port 32 Sealing agent 36 Inflow port (inflow part)
38 Check valve (second check valve)
48 Pressurized air port (Pressurized air inlet)
50 Check valve (first check valve)
52 Outlet 54 Joint hose (hose member)
56 Valve adapter

Claims (4)

Air supply means for supplying pressurized air;
A pressurized air inflow portion provided with a first control member allowing only inflow of pressurized air supplied from the air supply means; and an inflow portion provided with a second control member allowing only inflow of fluid; A flow path switching mechanism comprising an outlet through which fluid can flow out,
A liquid agent container in which a sealing agent is housed and provided with a discharge port connected to the inflow portion provided in the flow path switching mechanism, and the sealing agent is discharged from the discharge port when compressed;
A hose member having a base end connected to an outlet provided in the flow path switching mechanism and a tip connected to a tire valve of a pneumatic tire through a valve adapter;
A sealing / pump-up device.   2. The sealing pump according to claim 1, wherein the first control member is a first check valve or a first on-off valve member that permits only the flow of the pressurized air into the flow path switching mechanism. Up device.   3. The sealing / pump-up device according to claim 1, wherein the second control member is a second check valve or a second on-off valve member that permits only inflow of fluid. 4.   The sealing / pump-up device according to any one of claims 1 to 3, wherein the liquid agent container is formed in an accordion shape by an elastic member.

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