JP2008002513A - Valve connector and sealing pumping up device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a valve connector more suppressing inclination of a valve element than in a conventional one to reduce resistance in a flow passage and ensure stable flow rate. <P>SOLUTION: This valve connector 10 constituted by pressing the valve element 16 by a pressing member 122A of a tire valve 122 and separating the valve element 16 from a packing 24 to open a communicating passage 26 is provided with an inclination regulation part 16B provided with an outer side member 14 having a valve connection part on one end side in the axial direction, an inner side member 12 provided on an inner side of the outer side member 14 and having an outside connection part on the other axial end side, the communicating passage 26 for communicating the valve connection part and the outside connection part mutually, and a coil spring 18 for letting the valve element 16 abut on the packing 24 to restrict inclination and moving of the valve element 16 due to pressing of the tire valve 122 on an opposite face to an abutting face of the valve element 16 so that resistance in the flow passage is suppressed and flow rate of the fluid passing through the valve connector 10 is stably ensured more than in the conventional ones. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention injects a valve connector used for connection with a tire valve of a pneumatic tire and a sealing agent for sealing a punctured pneumatic tire into the pneumatic tire, and pressurizes compressed air into the pneumatic tire. The present invention relates to a sealing pump-up device that supplies and raises the internal pressure of a pneumatic tire.

  In recent years, when a pneumatic tire (hereinafter simply referred to as “tire”) is punctured, a sealing pump that repairs the tire with a sealing agent and pumps the internal pressure up to a predetermined reference pressure without replacing the tire and the wheel. Up equipment is widespread.

An example of such a sealing pump-up device is described in Patent Document 1. According to this sealing pump-up device, when a tire is punctured, an operator connects the valve connector attached to the tip of the joint hose to the tire valve of the punctured tire, and uses the sealing agent stored in the sealing agent container. Supply into tire through joint hose and valve connector. When the supply of the predetermined amount of sealing agent is completed, air is sent into the tire by the air compressor until the internal pressure of the tire reaches the specified pressure.
Japanese Patent Laid-Open No. 2001-212883

  As shown in FIG. 4, the conventional valve connector 200 includes a valve connection portion 204 that is detachably connected to the tire valve 220 at one end portion of the connector body 202, and is connected to and separated from the joint hose at the other end portion. A hose connection portion 206 that can be connected is provided. The valve connection portion 204 and the hose connection portion 206 communicate with each other via a communication path 208. In the connector main body 202, a valve body 210, a valve seat portion 212, and a biasing body 214 that makes the valve body 210 abut on the valve seat portion 212 are provided. The valve body 210 includes a pressed portion 210A that protrudes toward the valve connecting portion. When the pressed portion 210A is pressed by the pressing member 222 of the tire valve 220, the valve body 210 is separated from the valve seat portion 212 and communicates. 208 is opened. Further, the inclination of the valve body 210 in the direction opposite to the valve seat portion 212 and the position of the valve body 210 when the valve body 210 contacts the valve seat portion 212 and closes the communication path 208 are regulated. Therefore, the clearance between the inner peripheral surface of the connector main body 202 and the valve body 210 is narrowed.

  Since the clearance described above becomes a fluid flow path when the communication path 208 is opened, a predetermined amount of clearance needs to be secured in order to allow the fluid to flow into the valve connector 200. However, when the valve body 210 is separated from the valve seat portion 212, there is a problem that the valve body 210 is inclined by this clearance. When the valve body 210 is tilted, the flow path described above is narrowed and the flow path resistance is increased, or the fluid flow is disturbed. In addition, the inclination of the valve body 210 is not always constant because of the clearance, and it is difficult to stably secure the flow rate flowing between the valve connection portion 204 side and the hose connection portion 206 side.

  In view of the above facts, the object of the present invention is to provide a valve connector that suppresses the inclination of the valve body to reduce the flow resistance and secures a stable flow rate, and a sealing using this valve connector. It is to provide a pump-up device.

  The valve connector according to claim 1 is a valve connector in which a valve body is pressed by a pressing member of a tire valve and the communication path is opened by separating the valve body from the valve seat portion. An outer member having a valve connecting portion connectable to the tire valve on the side, an inner member provided inside the outer member and having an external connecting portion used for connection to the outside on the other end side in the axial direction; A communication passage that communicates the valve connection portion and the outer connection portion, and an urging body that makes the valve body abut against the valve seat portion, and a contact surface of the valve seat portion of the valve body An inclination restricting means for restricting the inclination movement of the valve body due to the pressing of the tire valve is provided on the opposite surface.

Next, the operation of the valve connector according to claim 1 will be described.
In the valve connector according to claim 1, for example, when the valve connecting portion is connected to the tip end portion of the tire valve in a state where fluid is injected from the external connecting portion side, the pressing member of the tire valve presses the valve body. To separate the valve body from the valve seat. At this time, since the valve body moves in a state in which the inclination of the valve body is restricted by the inclination regulating means, it is possible to suppress the communication path from being narrowed as compared with the conventional art. When the valve body is separated from the valve seat portion, the communication path is opened, and the fluid passes between the valve body and the valve seat portion, and is injected into the tire through the valve connecting portion and the tire valve. Therefore, the inclination of the valve body is suppressed as compared with the conventional one, the flow resistance is reduced, and the flow rate of the fluid passing through the communication path is stably secured.
Further, when the front end portion of the tire valve is separated from the valve connecting portion, the pressing member of the tire valve is separated from the valve body, the valve body is urged by the urging body and abuts against the valve seat portion, and the communication path is closed. The At this time, since the valve body moves in a state in which the inclination of the valve body is regulated by the inclination regulating means, the communication path can be reliably closed, and the pressure member of the tire valve presses the valve body. For the preferred position.

  The valve connector according to claim 2 is the valve connector according to claim 1, wherein the inclination restricting means extends in the direction of the external connection portion, and at least a part thereof is provided inside the inner member. It is characterized in that the inclined movement of the valve body is restricted by contacting the inner surface of the passage.

Next, the operation of the valve connector according to claim 2 will be described.
When the valve body is pressed by the tire valve pressing member and moves in the direction of the external connection portion, at least a part of the inclination regulating means extending in the direction of the external connection portion of the valve body is provided inside the inner member. Since it contacts the inner surface of the passage, the inclination of the valve body is restricted.

  The sealing pump-up device according to claim 3 injects a liquid sealing agent into a punctured pneumatic tire and supplies pressurized air into the pneumatic tire to increase the internal pressure of the pneumatic tire. A sealing pump-up device, comprising a gas-liquid supply means for supplying pressurized air and a sealing agent to the outside, and a hose member having a base end connected to the gas-liquid supply means, and a tip of the hose member The valve connector according to claim 1 or 2 is connected to the portion.

Next, the operation of the sealing pump-up device according to claim 3 will be described. For example, when a pneumatic tire is punctured, a valve connector provided at the tip of the hose member is connected to the tire valve, and a sealing agent is supplied from the gas / liquid supply means to the pneumatic tire through the hose member and the valve connector. Next, pressurized air is supplied from the gas-liquid supply means to the pneumatic tire through the hose member and the valve connector, and the internal pressure of the pneumatic tire is increased. Then, within a certain period of time after the inflation of the pneumatic tire is completed, the vehicle travels preliminarily for a certain distance using the pneumatic tire into which the sealing agent has been injected. As a result, the sealing agent is uniformly diffused into the pneumatic tire, and the sealing agent is filled in the puncture hole, thereby closing the puncture hole. Thereby, puncture repair is completed.
Further, when the valve connector is connected to the tire valve, the tire valve pressing member presses the valve body to separate the valve body from the valve seat portion, but the valve body is restricted from tilting by the tilt regulating means. Therefore, it is possible to suppress the communication path from being narrowed as compared with the prior art. Therefore, the inclination of the valve body is suppressed as compared with the conventional one, the flow resistance is reduced, and the flow rate of the sealing agent and the pressurized air passing through the communication path is stably secured.

  As described above, according to the valve connector of the present invention, the inclination of the valve body is suppressed more than before, the flow resistance is reduced, and the flow rate of the fluid passing through the communication passage is stably secured. Has an excellent effect. Further, according to the sealing pump-up device of the present invention, the inclination of the valve body is suppressed as compared with the conventional one, the flow resistance is reduced, and the flow rate of the sealing agent and the pressurized air passing through the communication path is stabilized. It has an excellent effect of being secured.

[First Embodiment]
Hereinafter, a sealing pump-up device according to an embodiment of the present invention will be described. FIG. 1 shows a sealing pump-up device (hereinafter simply referred to as “pump-up device”) according to an embodiment of the present invention. The pump-up device 30 repairs a tire with a sealing agent 36 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. The internal pressure is re-pressurized (pumped up) to the specified pressure.

  As shown in FIG. 1, the pump-up device 30 includes a box-shaped casing 32 as a casing. In the casing 32, an air compressor 34 is provided as a supply source of pressurized air, and a sealing agent is provided therein. A sealing agent container 40 for storing 36 is disposed. The sealant container 40 contains a sealant 36 for the tire 120 to be repaired.

  Here, the sealing agent container 40 is molded from polycarbonate and is translucent or transparent. Further, the sealing agent container 40 is provided with an air receiving port 39 in the top plate portion which is a partition portion on the upper end side along the height direction (arrow H direction) and is sealed in the bottom plate portion which is a partition portion on the lower end side. An agent discharge port 38 is provided.

  Further, the air compressor 34 is provided with an air suction portion 41 and an air supply portion 43, and an air suction port 42 and an air supply port 44 are opened in the air suction portion 41 and the air supply portion 43, respectively. ing. When operating, the air compressor 34 sucks air from the outside through the air suction port 42, pressurizes the suctioned air at a predetermined compression ratio, and discharges the air through the air supply port 44. The air compressor 34 has a compression capacity capable of compressing atmospheric air to about 0.5 MPa to 1.0 MPa.

  The air supply port 44 is connected to one end of a common pipe 46 made of a pressure-resistant hose, pipe, and the like, and an air switching valve 48 is connected to the other end of the common pipe 46. As the air switching valve 48, a three-way (three-port) electromagnetic valve having one intake port 49 and two discharge ports 50 and 51 is used.

  Here, a common pipe 46 is connected to the suction port 49 of the air switching valve 48, and one exhaust port 50 is connected to a first air pipe 54 made of a piping material having sufficient pressure resistance such as a pressure hose and a metal pipe. One end is connected, and the other exhaust port 51 is connected to one end of a second air pipe 56 made of a fluid hose or the like. As the common pipe 46 and the first air pipe 54, it is necessary to use a pipe that can withstand a pressure obtained by multiplying the reference pressure of the tire 120 by a predetermined safety factor (usually 2.0 to 5.0). In addition, the specified pressure of the tire 120 varies in a wide range depending on the type of the vehicle and the like, but is appropriately set in the range of 0.20 MPa to 0.30 MPa for a passenger car.

  The other end of the second air pipe 56 is connected to the air receiving port 39 of the sealing agent container 40. Thus, the discharge port 51 of the air switching valve 48 communicates with the air receiving port 39 of the sealing agent container 40 through the second air pipe 56. One end of a liquid injection pipe 58 is connected to the sealing agent discharge port 38 of the sealing agent container 40.

  Further, similarly to the air switching valve 48, the pump-up device 30 is provided with a gas / liquid switching valve 60 having two suction ports 61 and 62 and one discharge port 63. The other suction port 61 and the other end of the first air pipe 54 are connected to the two suction ports 61 and 62 at 60, respectively. One end of a joint hose 66 is connected to the discharge port 63 of the gas-liquid switching valve 60.

  A valve connector 10 that can be screwed to the tire valve 122 of the tire 120 is disposed at the other end of the joint hose 66. Details of the valve connector 10 will be described later. As the joint hose 66, one having a pressure resistance substantially equal to that of the common pipe 46 and the first air pipe 54 is used.

  The pump-up device 30 is provided with an operation panel 78 having a start / stop button 80 and a gas-liquid switching button 82 outside the casing 32. The operation panel 78 has a drive / control circuit 84 and a power cable (not shown). The power panel is driven from the vehicle by, for example, being inserted into a socket of a cigarette lighter installed in the vehicle. Power is supplied to the control circuit 84. The drive / control circuit 84 controls the air compressor 34, the air switching valve 48, and the gas / liquid switching valve 60 in accordance with operations on the start / stop button 80 and the gas / liquid switching button 82, respectively.

  Next, the sealing agent 36 used for the pump-up device 30 as described above will be described. The sealing agent 36 includes rubber latex such as SBR (styrene butadiene rubber) latex, NBR (acrylonitrile-butadiene rubber) latex, and rubber latex of a mixture of SBR latex and NBR latex, and an aqueous dispersion or an emulsion thereof. It has a resin adhesive added in the state.

  Further, the sealing agent 36 may be mixed with a fiber material or whisker made of polyester, polypropylene, glass or the like, or a filler (filler) made of calcium carbonate, carbon black or the like in order to improve the sealing performance against the puncture hole. In addition, silicate or polystyrene particles may be mixed in order to stabilize the sealing performance.

  In addition to the above-described components, anti-freezing agents such as glycol, ethylene-glycol, and propylene glycol, antifoaming agents, pH adjusters, and emulsifiers are generally added to the sealing agent 36.

(Valve connector)
Next, the configuration of the valve connector 10 will be described in detail. As shown in FIG. 2, the valve connector 10 includes an inner member 12, an outer member 14, a valve body 16, and a coil spring 18. 2 and 3 indicates the axis of the valve connector 10.

  The outer member 14 has a cylindrical shape, and has an outer diameter and an inner diameter that are larger on the other end side than on one end side in the axial direction. The small diameter side of the outer member 14 is referred to as an outer member small diameter portion 14S, and the large diameter side is referred to as an outer member large diameter portion 14L. A female screw 14N that can be screwed with a male screw 122N of the tire valve 122 is formed on the inner peripheral surface of the outer member small diameter portion 14S. Further, a step portion 14D is formed between the inner peripheral surface of the outer member small diameter portion 14S and the inner peripheral surface of the outer member large diameter portion 14L. A cylindrical packing 24 is provided so as to contact the stepped portion 14D and the inner peripheral surface of the outer member large diameter portion 14L. The inner diameter of the packing 24 is smaller than the inner diameter of the outer member small diameter portion 14S. A first groove 14G extending in the circumferential direction is provided on the inner peripheral surface on the end side of the outer member large diameter portion 14L.

  The inner member 12 has a cylindrical shape, and has an outer diameter and an inner diameter that are larger on the other end side than on one end side in the axial direction. The small diameter side of the inner member 12 is referred to as an inner member small diameter portion 12S, and the large diameter side is referred to as an inner member large diameter portion 12L. A hose connection portion 12A to which the joint hose 66 can be connected is formed on the end side of the inner member small diameter portion 12S. Further, a step portion 12D is formed between the outer peripheral surface of the inner member small diameter portion 12S and the outer peripheral surface of the inner member large diameter portion 12L. The inner member large-diameter portion 12L has an outer diameter smaller than the inner diameter of the outer member large-diameter portion 14L, and is outside the annular drop-off prevention sealing (retaining ring) 20 in which the step portion 12D is inserted into the first groove 14G. It arrange | positions inside 14L of outer member large diameter parts so that it may be located in the member small diameter part side. At this time, the end side of the inner member large diameter portion 12L contacts the packing 24, and fluid flows between the outer peripheral surface of the outer member large diameter portion 14L and the outer peripheral surface of the inner member large diameter portion 12L. Is preventing. A second groove 12G extending in the circumferential direction is provided on the stepped portion 12D side of the inner member large diameter portion 12L. The second groove 12G is provided with an annular O-ring 22 that prevents fluid leakage. The outer diameter of the leakage O-ring 22 is larger than the inner diameter of the outer member large-diameter portion 14L, and is disposed in a compressed state in the second groove 12G, and therefore has sufficient water leakage prevention capability.

  A substantially cylindrical valve body 16 is provided inside the inner member large diameter portion 12L. The valve body 16 includes a columnar pressing portion 16A extending to the tire valve connection side, and a columnar inclination regulating portion 16B extending to the joint hose connection side. The valve body 16, the pressing portion 16A, and the inclination restricting portion 16B are all arranged so as to be concentric. The outer diameter of the valve body 16 is larger than the outer diameter of the pressing portion 16 </ b> A, the outer diameter of the inclination regulating portion 16 </ b> B, and the inner diameter of the packing 24. The outer diameter of the pressing portion 16 </ b> A is smaller than the inner diameter of the packing 24, but at least has a diameter that can be pressed by the pressing member 122 </ b> A of the tire valve 122. In addition, the outer diameter of the inclination restricting portion 16B is smaller than the inner diameter of the inner member small diameter portion 12S.

  A coil spring 18 is provided on the joint hose connection side from the valve body 16. One end of the coil spring 18 is in contact with a spring receiving portion 16C provided on the valve body 16, and the other end is a stepped portion 12E between the inner peripheral surface of the inner member large diameter portion 12L and the inner peripheral surface of the inner member small diameter portion 12S. Abut. The coil spring 18 urges the valve body 16 to abut against the packing 24. At this time, the pressing portion 16A is disposed in the outer member small diameter portion 14S, and at least the tip portion of the inclination restricting portion 16B is disposed in the inner member small diameter portion 12S.

  In addition, the valve body 16 is normally urged by the coil spring 18 and is in contact with the packing 24, so that the communication passage 26 extending from the joint hose connection side to the tire valve connection side is closed. The communication passage 26 is configured by respective hollow portions formed inside the inner member 12, the outer member 14, and the packing 24.

  When the tire valve 122 is connected to the tire valve connecting portion side, the pressing member 122A of the tire valve 122 presses the pressing portion 16A of the valve body 16, and the valve body 16 is separated from the packing 24 to open the communication passage 26. When the tire valve 122 is detached, the pressing member 122A is separated from the valve body 16, and the valve body 16 is urged by the coil spring 18 to contact the packing 24 and close the communication passage 26.

  In addition, although the outer member 14 and the inner member 12 of the present embodiment are capable of relative rotation in the circumferential direction, it is not necessary to be limited to this configuration, and even a configuration that does not relatively rotate in the circumferential direction. Be good.

The calculation method used when designing the valve body 16 will be described below.
FIG. 5A shows a cross-sectional view of the valve body 16 in the inner member 12. 5A and 5B, the alternate long and short dash line M1 indicates the axis of the valve connector 10 and the valve body 16, and the alternate long and short dash line M2 in FIG. 5B indicates the axis of the valve body 16. 5A and 5B, the dimension L1 indicates the axial length of the inclination restricting portion 16B, the dimension L2 indicates the axial length of the pressing portion 16A, and the dimension D indicates the inner member. The inner diameter of the small-diameter portion 12S is shown, the dimension d shows the outer diameter of the inclination regulating portion 16B, and the dimension δ is the length in the direction perpendicular to the one-dot chain line M1 between the tip of the pressing part 16A on the one-dot chain line M2 Is shown. In addition, the dimension D of this embodiment is 4 mm.

As shown in FIG. 5 (B), when the valve body 16 is inclined with respect to the alternate long and short dash line M1, the end of the inclination restricting portion 16B is brought into contact with the inner peripheral surface of the inner member small diameter portion 12S. The one-dot chain line M2 is inclined by θ degrees with respect to the chain line M1. At this time, the length of the straight line extending in the direction perpendicular to the alternate long and short dash line M2 from the end of the inclination restricting portion 16B on the alternate long and short dash line M2 is approximately d / 2. From these numerical values, the value of θ can be obtained by Tan θ = (d / 2) / L1. For example, if d = 2.5 mm and L1 = 10 mm, the value of θ is approximately 5.13 °.
Further, the value of δ can be obtained by sin θ = δ / L2. For example, if L2 = 8 mm, the value of δ is approximately 0.7 mm. Since the value of δ indicates the blurring of the tip of the pressing portion 16A, when it is desired to suppress the value of δ to 1 mm or less, the values shown in Table 1 may be used as a reference.

In addition, the opening area of the inner member small diameter portion 12S when d = 3 mm is A ₃ = π (4 ² −3 ² ) = 5.50 mm ² , and in the same manner, when d = 2.5 mm, A _{2 ^{.5 = π (4 2 -2.5 2}} ) = 7.66mm 2 , and the case of ^{_{d = 2mm a 2 = π (}} 4 2 -2 2) = a 9.42 mm ^2. From these numerical values, if the value of d is 3 mm or less, a sufficient opening area can be secured.

Next, an operation procedure for repairing the punctured tire 120 using the pump-up device 30 according to the present embodiment will be described.
When puncture occurs in the tire 120, first, the operator first engages the male screw 122N of the tire valve 122 with the female screw 14N of the valve connector 10, and the male screw 122N until the tip of the male screw 122N bites into the packing 24. Insert inside. At this time, only the outer member 14 is rotated with respect to the tire valve 122, and the inner member 12 does not need to be rotated. Therefore, the valve connector 10 can be easily attached to the tire valve 122 without rotating the joint hose 66. The pressing portion 16A of the valve body 16 is pressed by the pressing member 122A of the tire valve 122, and the valve body 16 is separated from the packing 24 as shown in FIG. Thereby, the communication path 26 is opened. Here, when the valve body 16 is separated from the packing 24, even if the valve body 16 is inclined with respect to the axial direction, the tip end portion of the inclination regulating portion 16B abuts on the inner peripheral surface of the inner member small diameter portion 12S, In order to regulate the inclination of the valve body 16 so that it does not incline above a certain level, the valve body 16 moves to the joint hose connection side in a state where the inclination is restricted. For this reason, it is suppressed that the valve body 16 inclines and the communicating path 26 is narrowed. Therefore, the inclination of the valve body 16 is suppressed as compared with the conventional one, the flow resistance is reduced, and the flow rate of the sealing agent 36 passing through the communication path 26 is stably secured. Further, before the communication path 26 is opened, the pressing member 122A is also pressed by the pressing portion 16A, and a valve on the tire valve side (not shown) is also opened, so that the communication path 26 and the inside of the tire 120 are communicated.

  At this time, the air compressor 34 is stopped, and the air switching valve 48 is in a position (pressure position) where the suction port 49 communicates with the discharge port 51. On the other hand, the gas-liquid switching valve 60 is in a position where the discharge port 63 communicates with the suction port 61 and closes the liquid injection pipe 58, and the sealing agent 36 in the sealant container 40 passes through the liquid injection pipe 58 due to its own weight. To prevent it from leaking to the side. At this time, the gas-liquid switching valve 60 opens the first air pipe 54, but is closed by the air switching valve 48, so that the first air pipe 54 is pressurized by the air compressor 34. Air does not circulate.

  Next, the operator presses the start / stop button 80 on the operation panel 78 after inserting the power cable into the socket of the cigarette lighter of the vehicle. In conjunction with this, the drive / control circuit 84 operates the air compressor 34 to send pressurized air into the sealing agent container 40 through the common pipe 46 and the second air pipe 56.

  Further, the drive / control circuit 84 switches the communication destination of the discharge port 63 in the gas-liquid switching valve 60 from the suction port 61 to the suction port 62 when a predetermined time has elapsed from the operation of the air compressor 34. As a result, the inside of the sealing agent container 40 communicates with the inside of the tire 120 through the injection pipe 58 and the joint hose 66, and the sealing agent 36 is pushed out from the inside of the sealing agent container 40 by its own weight and the static pressure of the pressurized air. The sealing agent 36 is injected into the tire 120 through the injection pipe 58, the joint hose 66, and the valve connector 10.

  The sealing agent 36 passes through the communication passage 26 of the valve connector 10, but the O-ring 22 is disposed between the outer peripheral surface of the inner member large diameter portion 12L and the inner peripheral surface of the outer member large diameter portion 14L. Since the gap is sealed, leakage of the sealing agent 36 from this portion can be prevented. Further, a packing 24 is also arranged at a connection portion between the tire valve 122 and the valve connector 10, and the packing 24 is sandwiched between the inner member 12 and the tip end portion of the tire valve 122 by inserting the tire valve 122. In addition, since it is in close contact with adjacent members, leakage of the sealing agent 36 from this portion can also be prevented. The packing 24 seals a gap between the outer peripheral surface of the inner member large diameter portion 12L and the inner peripheral surface of the outer member large diameter portion 14L.

  The operator presses the gas-liquid switching button 82 on the operation panel 78 when the injection of a predetermined amount of the sealing agent 36 from the sealing agent container 40 into the tire 120 is completed.

  In conjunction with the depression of the gas-liquid switching button 82, the drive / control circuit 84 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 synchronizes with this. The communication port of the suction port 49 is switched from the discharge port 51 to the discharge port 50. Thus, the pressurized air supplied from the air compressor 34 is started to be supplied into the tire 120 through the first air pipe 54 and the joint hose 66, and the tire 120 is inflated by increasing the internal pressure of the tire 120.

  Thereafter, when the operator confirms that the internal pressure of the tire 120 has become the specified pressure by a pressure gauge (not shown) provided in the air compressor 34, the operator presses the start / stop button 80 again. In conjunction with this, the drive / control circuit 84 stops the air compressor 34.

  Next, the operator removes the valve connector 10 from the tire valve 122 and disconnects the joint hose 66 from the tire 120.

  After completion of the expansion of the tire 120 at the specified pressure, the worker travels preliminarily for a certain distance using the tire 120 into which the sealing agent 36 has been injected before the sealing agent 36 is cured. As a result, the sealing agent 36 is uniformly diffused into the tire 120, and the sealing agent 36 is filled in the puncture hole to close the puncture hole. After completion of the preliminary traveling, the operator again screws the valve connector 10 of the joint hose 66 to the tire valve 122 and operates the air compressor 34 to pressurize the tire 120 to a specified internal pressure. As a result, when the puncture repair of the tire 120 is completed and the joint hose 66 is removed from the tire 120, normal traveling using the tire 120 becomes possible.

[Other Embodiments]
In the first embodiment, the valve connector 10 of the present invention is applied to the pump-up device 30. However, the present invention is not limited to this configuration, and the present invention is applied to all other devices for flowing fluid into the tire through the tire valve. The valve connector 10 can be used.

  [Test Example] In order to confirm the effect of the present invention, one type of sealing pump-up device of a comparative example and one type of sealing pump-up device of an example to which the present invention was applied were prepared, and the following evaluation items were evaluated. went.

  Evaluation of sealing agent injection time: At an environmental temperature of 60 ° C., the time for injecting the liquid sealing agent into a punctured pneumatic tire was measured and evaluated. The test was performed 20 times, and the average value was used as the evaluation value.

Example: A sealing pump-up device to which the first embodiment is applied.
Comparative example: A sealing pump-up device in which the valve connector of the example is a conventional one.

  From the results of Table 2, it can be seen that the injection time of the sealing agent in the example was improved as compared with the comparative example. This is because the flow resistance is reduced because the inclination of the valve body is suppressed, and the supply rate of the sealing agent is improved on average because the flow rate of the sealing agent passing through the communication passage is stably secured. Conceivable.

It is a block diagram which shows the sealing pump up apparatus which concerns on this embodiment. It is a longitudinal section at the time of closure of a valve connector concerning this embodiment. It is a longitudinal section at the time of opening of a valve connector concerning this embodiment. It is a longitudinal cross-sectional view at the time of closure of the conventional valve connector. (A) It is the figure which represented typically the valve connector which concerns on this embodiment, and entered the dimension line in each site | part. (B) It is the figure which represented typically the state which inclined the valve connector of FIG. 5 (A), and entered the dimension line in each site | part.

Explanation of symbols

10 Valve connector 12A Hose connection (external connection)
12 inner member 12S inner member small diameter part (inner member)
12L inner member large diameter part (inner member)
14 outer member 14S outer member small diameter part (outer member)
14L Outer member large diameter part (outer member)
16 Valve body 16A Pressing part (valve body)
16B Inclination restricting part 18 Coil spring (biasing body)
24 Packing (valve seat)
26 Communication passage 30 Pump-up device (sealing pump-up device)
34 Air compressor (gas-liquid supply means)
36 Sealant 40 Sealant container (gas-liquid supply means)
66 Joint hose (hose member)
120 tire 122 tire valve 122A pressing member

Claims (3)

In the valve connector in which the valve body is pressed by the pressing member of the tire valve, and the communication path is opened by separating the valve body from the valve seat portion.
An outer member having a valve connecting portion connectable to the tire valve on one end side in the axial direction;
An inner member provided on the inner side of the outer member and having an external connection portion used for connection to the outside on the other end side in the axial direction;
A communication path communicating the valve connection portion and the outer connection portion;
An urging body for bringing the valve body into contact with the valve seat portion,
A valve connector characterized in that an inclination restricting means for restricting an inclination movement of the valve body by pressing of the tire valve is provided on a surface of the valve body opposite to a contact surface of the valve seat portion.   The tilt regulating means regulates the tilt movement of the valve body by extending in the direction of the external connecting portion and at least a part of which is in contact with the inner surface of the communication path provided inside the inner member. The valve connector according to claim 1. A sealing pump-up device that injects a liquid sealing agent into a punctured pneumatic tire and supplies pressurized air into the pneumatic tire to increase the internal pressure of the pneumatic tire,
A gas-liquid supply means for supplying pressurized air and a sealing agent to the outside;
A hose member having a base end connected to the gas-liquid supply means,
A sealing pump-up device, wherein the valve connector according to claim 1 or 2 is connected to a tip portion of the hose member.

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