JP2011131547A - 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: A disk-like deformation restraining plate 72 superposed on the lower face 64A of a top plate 64 is fixed to the tip end of a pipe body 42. The deformation restraining plate 72 is provided with four openings 74 penetrating front and rear faces with the equal spaces along the outer edge 72A of the deformation restraining plate 72. The pressurized air pressing the top plate 64 presses the top plate 64 through the openings 74 provided along the outer edge 72A. Thus, the top plate 64 effectively transmits the pressed force pressed by the pressurized air to the cylindrical part 62 without deformation. This improves 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 pressurizing air flowing through the holding member provided inside the connecting portion and flowing into the liquid agent container connected to the connecting portion. An injection unit including an air passage, a sealing agent extruded by the pressurized air, and a gas-liquid passage for sending pressurized air to a punctured pneumatic tire, and a cylinder held on the outer peripheral surface of the holding member And a cap member for isolating the pressurized air passage and the gas-liquid passage from a sealing agent accommodated in the liquid agent container. Wherein the injection unit is characterized by suppressing deformation suppressing member deformation of the top plate 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 injection unit is provided with a deformation suppressing member that suppresses deformation of the top plate. 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 deformation suppressing member is fixed to an end of the gas-liquid passage.
According to the said structure, the deformation | transformation suppression member fixed to the edge part of a gas-liquid channel | path suppresses a deformation | transformation of the top plate pressed by pressurized air. Thereby, the top plate effectively transmits the pressing force pressed by the pressurized air to the cylindrical portion, 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.

  A 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 deformation suppressing member is a deformation suppressing plate superimposed on the top plate, and the deformation suppressing plate includes: An opening for guiding the pressurized air fed from the pressurized air passage to the top plate is provided.

  According to the above configuration, the deformation suppressing plate provided with the opening that is superimposed on the top plate and that guides the pressurized air sent from the pressurized air passage to the top plate, deforms the top plate pressed by the pressurized air. Suppress. That is, the pressurized air sent from the pressurized air path presses the top plate through the opening provided in the deformation suppressing plate. The top plate effectively transmits the pressing force pressed by the pressurized air to the cylindrical portion, 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.

According to a fourth aspect of the present invention, there is provided the sealing / pump-up device according to the third aspect, wherein the opening is provided along an outer edge of the deformation suppressing plate.
According to the above configuration, the opening is provided along the outer edge of the deformation suppressing plate. For this reason, compared with the case where an opening is provided inside, the deformation | transformation of the top plate pressed by the pressurized air which passed the opening can be suppressed effectively.

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 the second aspect of the present invention, the detachability of the cap member can be improved.

According to the sealing and pump-up device of claim 3 of the present invention, the detachability of the cap member can be improved.
According to the sealing / pump-up device of claim 4 of the present invention, it is possible to effectively suppress deformation of the top plate pressed by the pressurized air passing through the opening.

  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. It is the perspective view which showed the deformation | transformation suppression board etc. which were employ | adopted for the sealing and pump-up apparatus which concern on 1st Embodiment of this 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 the perspective view which showed the deformation | transformation suppression board etc. which were employ | adopted for the sealing and pumping up apparatus which concerns on 2nd 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. 7, 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 “vehicle”) 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). Further, a valve adapter 40 (see FIG. 7) is provided at the distal end 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. 7).

(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 stored in the liquid container 18. The pressurized air passage 54 and the gas-liquid passage 46 are separated from the air passage 32.

  As shown in FIGS. 2 and 6, a disc-shaped deformation suppressing plate 72 that is superimposed on the lower surface 64 </ b> A of the top plate 64 is fixed to the distal end portion of the tube body 42. Further, the deformation suppressing plate 72 is provided with four openings 74 penetrating the front and back at equal intervals along the outer edge 72A of the deformation suppressing plate 72. With this configuration, deformation of the top plate 64 is suppressed, and pressurized air that has passed through the opening 74 presses the top plate 64.

  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. 7, 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 disk-shaped deformation suppression plate 72 is provided so as to overlap the lower surface 64A of the top plate 64, and four openings are formed along the outer edge 72A of the deformation suppression plate 72. Is provided. That is, the pressurized air that presses the top plate 64 presses the top plate 64 through the opening 74 provided along the outer edge 72A. 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 like the two-dot chain line shown in FIG. Further, 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.

  Here, as indicated by the arrow shown in the liquid agent container 18 of FIG. 4, the flow of the sealing agent 32 pressed by the pressurized air is because the opening 74 is provided along the outer edge 72 </ b> A of the deformation suppressing plate 72. It ’s not disturbed. For this reason, it is suppressed that pressurized air and the sealing agent 32 are discharged while being mixed.

  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. 7, 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. 7, 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 disk-shaped deformation suppression plate 72 is provided so as to overlap the lower surface 64A of the top plate 64, and the four openings 74 are formed along the outer edge 72A of the deformation suppression plate 72. The top plate 64 effectively transmits the pressing force pressed by the pressurized air to the cylindrical portion 62. Thereby, the detachability of the cap member 60 when pressed by pressurized air can be improved.

  The opening 74 is provided along the outer edge 72 </ b> A of the deformation suppressing plate 72. For this reason, compared with the case where the opening 74 is provided inside, the deformation | transformation of the top plate 64 pressed by the pressurized air which passed the opening 74 can be suppressed effectively.

  In addition, by superimposing the deformation suppressing plate 72 on the lower surface 64A of the top plate 64, it is possible to prevent the top plate 64 from being deformed by the hydraulic pressure of the sealing agent 32 even during storage. Is done. Thereby, the sealing performance of 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.

  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. 8, in the second embodiment, four plate-shaped rib members 80 that connect the disk-shaped deformation suppressing plate 72 and the holding portion 38 are provided. Thereby, the rigidity of the deformation | transformation suppression board 72 becomes high, and a deformation | transformation of the top plate 64 can be suppressed effectively.

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 portion 46 Gas-liquid passage 54 Pressurized air passage 60 Cap member 62 Tube portion 64 Top plate 70 Projection portion 72 Deformation suppression plate 72A Outer edge 74 Opening

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;
A connecting portion to which the discharge port of the liquid agent container is connected, and a pressurized air passage through which the pressurized air that passes through the holding member provided inside the connecting portion and is fed to the liquid agent container connected to the connecting portion flows An injection unit in which a sealing agent extruded by the pressurized air and a gas-liquid passage for sending the pressurized air to a punctured pneumatic tire are formed,
A cylinder part held on the outer peripheral surface of the holding member and a top plate for closing the opening of the cylinder part are provided, and the pressurized air passage and the gas-liquid passage are isolated from the sealing agent accommodated in the liquid agent container. A cap member,
A sealing / pump-up device in which the injection unit is provided with a deformation suppressing member that suppresses deformation of the top plate.   The sealing / pump-up device according to claim 1, wherein the deformation suppressing member is fixed to an end portion of the gas-liquid passage. The deformation suppression member is a deformation suppression plate superimposed on the top plate,
3. The sealing / pump-up device according to claim 1, wherein the deformation suppressing plate is provided with an opening that guides the pressurized air fed from the pressurized air passage to the top plate. 4.   The sealing / pump-up device according to claim 3, wherein the opening is provided along an outer edge of the deformation suppressing plate.   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.

Images