JP2008183796A - Sealing pump-up device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sealing pump-up device which can be easily constituted while preventing leak of a sealant. <P>SOLUTION: A sealant unit 12 is provided with a case body 30, a sealant reservoir part 32, a lid member 34, a channel member 40, a bore member 44, and a pressing tool 46. The case body 30 constitutes the outer shell part of the sealant unit 12. The sealing agent reservoir part 32 is constituted integrally with the case body 30, and the part constituting the outer shell part of the sealant unit 12 is made common to the case body 30. Also, the channel member 40 is constituted integrally with the case body 30. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a sealing device that injects a sealing agent for sealing a punctured pneumatic tire into the pneumatic tire.

  In recent years, when a pneumatic tire (hereinafter, simply referred to as “tire”) is punctured, a sealing / pump-up device that repairs the tire with a sealing agent without replacing the tire and the wheel has become widespread. In this type of sealing / pump-up device, the liquid container that contains the sealing agent is separated from the device.

For example, in the sealing / pump-up device described in Patent Document 1, a puncture sealing agent is accommodated, and the outlet is made of an aluminum foil or the like and sealed with a breakable lid (seal member). It is configured to be attached to the storage container.
Japanese Patent Laid-Open No. 2005-199618

  As described above, when the liquid container containing the sealing agent is separated from the apparatus, it has been necessary to load the liquid container into the sealing / pump-up device after the liquid agent container is filled with the sealing agent. In this case, it is necessary to ensure the bondability between the liquid agent container and the sealing agent flow path on the apparatus side, and it is not easy to load while ensuring the bondability.

  An object of the present invention is to provide a sealing / pump-up device that can be easily configured in consideration of the above-mentioned fact and preventing leakage of a sealing agent.

  The sealing / pump-up device according to claim 1 is configured integrally with the casing, the sealing agent storage chamber for storing the sealing agent, the filling port for charging the sealing agent, and A sealing agent reservoir in which a discharge port for discharging the sealing agent is formed; a lid member that closes the filling port; a seal member that covers and closes the discharge port from the sealing agent storage chamber side; and the housing The compressed air is configured to be integrated with a body and communicated with a sealing agent flow path for guiding the sealing agent discharged from the discharge port to a connecting portion with a liquid hose, and an air hose connecting portion serving as an inlet for compressed air, A flow path member that constitutes an air flow path that guides the discharge port from the discharge port into the sealing agent accommodation chamber, and breaks the seal member to discharge the discharge port, the sealing agent flow path, and the air flow. When it is configured to include a piercing member which communicates, and a pump-up unit configured to include an air supply means for supplying the compressed air.

  In the sealing / pump-up device configured as described above, a filling port for filling the sealing agent in the sealing agent reservoir is formed, and the sealing agent is filled from this filling port. The sealing agent reservoir and the flow path member are configured integrally with the housing. Therefore, it is not necessary to load the sealing agent reservoir in the housing, and the sealing / pump-up device can be easily configured. Moreover, since it is an integral structure, since the junction part is not formed in the vicinity of the discharge port, leakage of the discharged sealing agent can be prevented.

  The sealing / pump-up device according to claim 2 is characterized in that the pump-up unit is separated from the casing.

  In this way, by making the pump-up unit configured to include the air supply means for supplying pressurized air as a separate body, it is possible to replace the sealing agent reservoir and use the pump-up unit repeatedly. it can.

  The sealing / pump-up device according to claim 3, further comprising a pressing jig that presses the piercing member toward the sealing agent accommodation chamber, the piercing member being fitted into the air flow path, It is characterized by being pressed to the sealing agent storage chamber side by a jig to break the seal member and to be pushed out to the sealing agent storage chamber.

  In this way, by pushing the perforating member into the sealing agent storage chamber using the pressing jig, the sealing member can be broken to allow the discharge port, the sealing agent passage, and the air passage to communicate with each other.

  According to the present invention, since the sealing agent reservoir, the sealing agent flow path, and the air flow path are integrally formed with the casing, there is no need to load the sealing agent reservoir in the casing. -The pump-up device can be easily configured.

  Hereinafter, a sealing / pump-up device according to an embodiment of the present invention will be described.

(Configuration of sealing / pump-up device)
FIG. 1 shows a sealing / pump-up device 10 according to an embodiment of the present invention. The sealing / pump-up device 10 repairs a tire with a sealing agent without replacing the tire and the wheel when a pneumatic tire (hereinafter simply referred to as “tire”) mounted on a vehicle such as an automobile punctures. To do.

  As shown in FIG. 1, the sealing / pump-up device 10 includes a sealing agent unit 12 and a pump-up unit 14. The sealant unit 12 and the pump-up unit 14 are separated and can be joined to each other by an engagement member (not shown).

  The pump-up unit 14 includes a box-shaped casing 20 as an outer shell, and the front side of the casing 20 is a door 20A that can be opened and closed. Inside the casing 20, a motor, an air compressor, a power supply circuit, a control board, etc. (all not shown) are arranged. A pressure-resistant hose 64 (see FIG. 3) is connected to the air compressor. A power cable 22 extending from the power circuit to the outside of the unit is provided inside the casing 20. By inserting the plug 24 provided at the tip of the power cable 22 into a socket of a cigarette lighter installed in the vehicle, for example, a battery mounted on the vehicle can supply power to the motor or the like through the power circuit. Become. Further, a joint hose 60 is provided inside the casing 20. One end of the joint hose 60 is connected to a nipple 41A at the tip of a liquid agent hose connection portion 41 described later. The other end of the joint hose 60 is provided with a valve adapter 62 that is detachably connected to the tire valve 102 of the tire 100.

  An operation switch 66 and a pressure gauge 68 are disposed on the upper portion of the casing 20. The operation switch 66 is a switch for supporting the operation and stop of the sealing / pump-up device 10. The pressure gauge 68 is connected to the joint hose 60 and can measure the internal pressure of the tire 100.

  The pump-up unit 14 can generate compressed air having a pressure (for example, 300 kPa or higher) higher than a specified pressure defined for each type of tire 100 (see FIG. 2) to be repaired by the air compressor. .

  As shown in FIG. 3, the sealing agent unit 12 includes a housing 30, a sealing agent reservoir 32, a lid member 34, a flow path member 40, a piercing member 44, and a pressing jig 46.

  The housing 30 constitutes an outer shell portion of the sealant unit 12. The sealing agent storage unit 32 is configured integrally with the housing 30, and the portion constituting the outer shell portion of the sealing agent unit 12 is common to the housing 30.

  A sealing agent storage chamber 34 that can store the sealing agent S is formed inside the sealing agent storage unit 32. The upper part of the sealing agent reservoir 32 is open, and a filling port 35 for filling the sealing agent S is formed. A male screw 35N capable of screwing the lid member 34 is formed on the outer surface of the sealing agent reservoir 32 on the filling port side, and an annular groove 33A is formed on the upper end surface of the sealing agent reservoir 32. When the sealing agent S is filled, the lid member 34 is removed and the filling port 35 is opened, and the filling port 35 is closed by the lid member 34 after filling is completed. An O-ring 33 is fitted in the groove 33A. Sealing between the lid member 34 and the sealing agent reservoir 32 is performed by the O-ring 33. A discharge port 36 for discharging the sealing agent S is formed below the sealing agent storage unit 32.

  The discharge port 36 has a smaller diameter than that of the upper sealing agent storage chamber 34 and is covered with a seal member 38 so as to close the discharge port 36 from the sealing agent storage chamber 34 side. An aluminum seal or the like can be used as the seal member 38. The outer peripheral edge portion of the sealing member 38 is fixed to the sealing agent storage chamber 34 side outside the discharge port 36 over the entire periphery by adhesion or the like.

  The lid member 34 is shaped like a disk and has a lid portion 34A that closes the filling port 35. The lid member 34 protrudes downward from the outer periphery of the lid portion 34A, and has an annular shape in which a female screw 34N that engages with a male screw 35N is formed. It is comprised by the engaging part 34B.

  The sealing agent storage chamber 34 is filled with a slightly larger amount of the sealing agent S than a prescribed amount (for example, 200 g to 400 g) according to the type and size of the tire 100 to be repaired by the sealing / pump-up device 10. . The sealing agent S can be loaded directly from the filling port 35 by removing the lid member 34. As described above, since the sealing agent S can be directly filled into the sealing agent storage chamber 34 configured in the casing 30, it is not necessary to set the bottle in the casing after the sealing agent is once filled in the bottle or the like.

  In this embodiment, the sealing agent S is filled without a space without providing a space. However, in order to prevent alteration of the sealing agent S due to oxidation, nitridation, etc., an inert gas such as Ar is sealed at the time of shipment. A small amount may be enclosed in the sealing agent storage chamber 34 together with the agent S.

  In the sealing / pump-up device 10, the sealing agent S in the sealing agent storage chamber 34 is in a state of pressurizing the seal member 38 by its own weight.

  Below the discharge port 36 of the sealant storage part 32, a flow channel member 40 that constitutes a sealing agent flow channel 45 communicating with the discharge port 36 and an air flow channel 42 communicating with the discharge port 36 is sealed. It is formed integrally with the agent reservoir 32. The flow path member 40 has a cylindrical shape and is integrally connected to the bottom of the housing 30.

  In addition, the housing | casing 30, the sealing agent storage part 32, and the flow-path member 40 can be shape | molded by resin materials, such as PP and PE.

  On the side wall of the flow path member 40, a liquid hose connection portion 41 protruding radially outward from the side wall is formed, and an air connection portion 43 is formed on the side opposite to the liquid agent hose connection portion 41. A nipple 41 </ b> A is attached to the distal end portion of the liquid hose connection portion 41. A nipple 43 </ b> A is attached to the distal end portion of the air hose connection portion 43. A joint hose 60 is connected to the nipple 41A, and a pressure-resistant hose 64 for supplying pressurized air from the compressor is connected to the nipple 43A.

  The sealing agent flow path 45 is formed downward from the upper end surface of the flow path member 40, bent at the height position of the liquid hose connection part 41, and directed toward the distal end of the liquid hose connection part 41. Is formed so as to penetrate from the upper end surface to the tip end surface of the liquid agent hose connecting portion 41.

  The air flow path 42 includes a vertical air flow path 42A and a horizontal air flow path 42B. The vertical air flow path 42 </ b> A is formed so as to penetrate from the upper end surface of the flow path member 40 downward to the bottom surface of the housing 30. The horizontal air flow path 42B is formed from the front end surface of the air hose connection portion 43 toward the vertical air flow path 42A in the horizontal direction, and communicates with the vertical air flow path 42A.

  The piercing member 44 includes a plug portion 44A and a piercing portion 44B. The plug portion 44A has a cylindrical shape that can be inserted into the vertical air flow path 42A, has two groove portions 44C formed in the circumferential direction, and is fitted with an O-ring 44O. The plug portion 44A is inserted into the vertical air flow path 42A from the discharge port 36 side. One O-ring 44O is disposed above the lateral air flow path 42B, and the other O-ring 44O is disposed below the lateral air flow path 42B.

  The piercing portion 44B of the piercing member 44 is provided at one end of the plug portion 44A and has a larger diameter than the plug portion 44A. A plurality of blades 44H for easily breaking through the seal member 38 are formed at the tip of the perforated part 44B. The piercing member 44 is disposed in a stepped portion 47 configured between the seal member 38 and the vertical air flow path 42A.

  The pressing jig 46 includes a columnar insertion portion 47 and a disk-shaped base portion 48 formed at one end (bottom portion) of the insertion portion 47 and having a larger diameter than the insertion portion 47. The insertion portion 47 is formed with a jig communication path 49 that extends from the distal end surface toward the base portion 48 side, bends toward the side surface at the intermediate portion, and forms an opening 49A on the side surface.

  The diameter of the insertion portion 47 is also slightly smaller than the vertical air flow path 42A, so that it can be inserted into the vertical air flow path 42A. The length of the insertion portion 47 is substantially equal to the entire path length of the vertical air flow path 42A. As a result, when the entire insertion portion 47 of the pressing jig 46 is inserted into the vertical air flow path 42A from below, the piercing member 44 is pushed out into the sealing agent storage chamber 34 as shown in FIG.

  As shown in FIG. 4, the opening 49A at one end of the jig communication passage 49 (the side surface side of the insertion portion 47) has a horizontal air flow path 42B in a state where the entire insertion portion 47 is inserted into the vertical air flow path 42A. It is formed in the position where it communicates with. As a result, the lateral air flow path 42 </ b> B communicates with the sealing agent storage chamber 34 via the jig communication path 49.

  A pair of groove portions 47A is formed in the circumferential direction above and below the opening 49A of the insertion portion 47, and an O-ring 47O is fitted into each. In a state where the entire insertion portion 47 is inserted into the vertical air flow path 42B, one of the pair of O-rings 47O is disposed above the horizontal air flow path 42B, and the other is positioned above the horizontal air flow path 42B. Located on the lower side.

(Operation of sealing / pump-up device)
Next, an operation procedure for repairing the punctured tire 100 using the sealing / pump-up device 10 according to the present embodiment will be described.

  When puncture occurs in the tire 100, first, the operator screws the valve adapter 62 of the joint hose 60 onto the tire valve 102 of the tire 100 as shown in FIG. 2.

  Next, the operator inserts the insertion portion 47 of the pressing jig 46 into the vertical air flow path 42 </ b> A of the sealing / pump-up device 10 from below. Then, the bottom side of the plug portion 44A of the piercing member 44 is pushed by the pressing jig 46, the piercing member 44 moves to the discharge port 36 side, and the piercing portion 44B hits the seal member 38. When the pressing jig 46 is further pushed in, the seal member 38 is pierced by the piercing portion 44 </ b> B, and the piercing member 44 enters the sealing agent accommodation chamber 34. Furthermore, when the base portion 48 of the pressing jig 46 is abutted against the housing 30 and the entire insertion portion 47 is completely inserted, the plug portion 44A of the piercing member 44 comes out of the vertical air flow path 42A and the sealing agent storage chamber. 34 is released.

  The pressing jig 46 remains in the vertical air flow path 42A. Then, the lateral air flow path 42B2 is communicated with the sealing agent storage chamber 34 through the jig communication passage 49, and the pressurized air from the compressor can be fed into the sealing agent storage chamber 34.

  On the other hand, the sealing agent flow path 45 communicates with the sealing agent storage chamber 34 when the seal member 38 is broken.

  In this state, the operator turns on the operation switch 66. As a result, the pump-up unit 14 is operated, and the pressurized air from the pump-up unit 14 is supplied into the sealing agent storage chamber 34 via the pressure hose 64 and the jig communication passage 49. When pressurized air is supplied into the sealing agent storage chamber 34, the pressurized air floats upward in the sealing agent storage chamber 34 to form an air layer. The sealing agent S is discharged from the discharge port 36 to the sealing agent passage 45 by the air pressure of the air layer, and is injected into the tire 100 through the liquid hose connection portion 41 and the joint hose 60.

  After all the sealing agent S in the sealing agent storage chamber 34 has been discharged, pressurized air is injected into the tire 100 via the joint hose 60.

  When the operator confirms that the internal pressure of the tire 100 has become the specified pressure using the pressure gauge 68, the operator turns off the operation switch 66 to stop the compressor, and removes the valve adapter 62 from the tire valve 102.

  The worker travels preliminarily for a certain distance using the tire 100 into which the sealing agent S has been injected within a certain time after the completion of the inflation of the tire 100. As a result, the sealing agent S is uniformly diffused into the tire 100, and the sealing agent S is filled in the puncture hole to close the puncture hole. After completion of the preliminary traveling, the operator re-measures the internal pressure of the tire 100, screwes the valve adapter 62 of the joint hose 60 to the tire valve 102 again as necessary, and restarts the compressor to redefine the tire 100. Pressurize to internal pressure. Thereby, the puncture repair of the tire 100 is completed, and the tire 100 can be used to travel at a certain speed or less (for example, 80 km / h or less) within a certain distance range.

  According to the sealing / pump-up device 10 of the present embodiment, since the housing 30 and the sealing agent reservoir 32 are integrally configured, the sealing agent S can be filled directly into the housing 30. Therefore, unlike the case where the container of the sealing agent is separated from the casing, it is not necessary to install the sealing agent in the casing after filling the container with the sealing agent. Moreover, since the sealing agent storage part 32 and the flow path member 40 are integrally formed, there is no joint between the sealing agent storage chamber 34 and the sealing agent flow path 45, and the sealing agent from the joint is provided. Leakage can be prevented.

  In this embodiment, the sealing agent unit 12 and the pump-up unit 14 are separated from each other, but are not necessarily separated. In particular, the pump-up unit 14 can be used repeatedly by replacing the sealing agent storage part side by making it a separate body.

It is a perspective view which shows the structure of the sealing and pump-up apparatus which concerns on embodiment of this invention. It is a perspective view which shows the connection of a sealing pump-up apparatus and a tire. It is sectional drawing which shows the structure of the sealing agent unit at the time of storage, and a pressing jig. It is sectional drawing which shows the structure of the sealing agent unit of the state which inserted the pressing jig.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Sealing / pump-up apparatus 12 Sealing agent unit 20 Casing 30 Case 32 Sealing agent storage part 34 Sealing agent storage chamber 34 Cover member 35 Filling port 36 Discharge port 38 Seal member 40 Flow path member 41 Liquid agent hose connection part 41A Nipple 42 Air Flow path 42B Horizontal air flow path 43 Air hose connection part 43 Air connection part 43A Nipple 44A Plug part 44B Perforation part 44 Perforation member 45 Sealing agent flow path 46 Pressing jig 49 Jig communication path

Claims (3)

A housing,
A sealant storage chamber that is configured integrally with the casing and that includes a sealant storage chamber for storing a sealant, a filling port for filling the sealant, and a discharge port for discharging the sealant. And
A lid member for closing the filling port;
A sealing member that covers and closes the discharge port from the sealing agent storage chamber side;
It is configured integrally with the casing, and communicates with a sealing agent flow path that guides the sealing agent discharged from the discharge port to a connecting portion with a liquid hose, and an air hose connecting portion that becomes an inlet of compressed air, A flow path member constituting an air flow path for guiding compressed air from the discharge port to the sealing agent accommodation chamber;
A perforating member that breaks the seal member to communicate the discharge port with the sealing agent passage and the air passage;
A pump-up unit configured to include air supply means for supplying the compressed air;
Sealing and pump-up device with   The sealing / pump-up device according to claim 1, wherein the pump-up unit is separated from the housing. A pressing jig for pressing the piercing member toward the sealing agent storage chamber;
The piercing member is fitted into the air flow path, pressed by the pressing jig toward the sealing agent storage chamber, breaks the seal member, and is pushed out to the sealing agent storage chamber. The sealing pump-up device according to 1.

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