JP5180105B2 - Sealing / pump-up device - Google Patents

Description

  The present invention provides a sealing agent for sealing a puncture hole of a punctured pneumatic tire into the pneumatic tire, and supplying compressed air into the pneumatic tire to increase the internal pressure of the pneumatic tire. The present invention relates to a pump-up device.

  In recent years, when a pneumatic tire (hereinafter simply referred to as “tire”) is punctured, the tire puncture hole is repaired with a sealing agent without replacing the tire and wheel, and the tire internal pressure is pumped to a specified pressure. Sealing / pump-up devices are widely used (for example, Patent Documents 1 and 2).

  In patent document 1, after the container which accommodated the sealing agent was assembled | attached to the injection | pouring unit, the injection | pouring unit is attached to the attaching part provided in the casing. A connector at the tip of the air hose extending from the compressor is connected to the air piping of the injection unit through a through hole in the lower part of the casing, and the tire valve and the fluid piping of the injection unit are connected by a fluid hose.

  By the way, since the apparatus of patent document 1 is the structure which replaces | exchanges a container and an injection | pouring unit, the container is exposed out of the casing. For this reason, when an external force acts only on the container (and the injection unit), the container and the injection unit may move. When these move, the air hose connector on the outside of the casing cannot follow the movement, and the connection between the air piping and the connector is released, or the connector and the air piping are damaged. There is a risk of defects such as injection leakage.

  On the other hand, in Patent Document 2, since the container, the injection unit, and the casing are integrated, no external force is applied only to the container, and air piping is provided in the casing. The piping is not damaged. However, in Patent Document 2, since the container and the injection unit are integrally formed with the casing, the structure is complicated.

International Publication No. 2005/085028 Pamphlet JP 2008-183796 A

  An object of the present invention is to provide a sealing / pump-up device having a simple structure that suppresses air injection leakage by holding an air supply path to a container even when an external force acts on the container in consideration of the above facts. There is.

  The sealing / pump-up device according to claim 1 is connected to a casing and an outlet of a container containing a sealing agent, and an injection unit held in the casing, and inserted into the injection unit. And a breaking means for breaking the sealing member that seals the outlet and being fixed only to the injection unit, and a compressed air supply that supplies the compressed air to the container that is connected to the breaking means and to which the sealing member is broken Means, a sealing agent connected to the injection unit and flowing out to the injection unit through the outlet, and a fluid supply pipe for guiding the compressed air to a pneumatic tire.

  In the sealing / pump-up device according to the first aspect, when the breaking means is inserted into the injection unit, the sealing member is broken and the outlet of the container is opened. At this time, the breaking means is not fixed to the housing, but only to the injection unit. Compressed air is supplied to the container whose seal member has been broken through the breaking means. The compressed air supplied to the container pushes the sealing agent to the injection unit through the outlet of the container, and the extruded sealing agent and the compressed air are guided to the fluid supply pipe and supplied to the pneumatic tire.

  In addition, a sealing agent and compressed air are supplied to the punctured pneumatic tire, and after that, the sealing agent is filled in the puncture hole by traveling a specified distance, and the puncture hole is closed. After running, check the air pressure of the pneumatic tire and resupply compressed air if necessary. By doing in this way, the puncture repair work of a pneumatic tire can be implemented and completed.

  Here, the breaking means is fixed only to the injection unit, the compressed air supply means is connected to the breaking means, and the fluid supply pipe is connected to the injection unit. In other words, since the breaking means, the fluid supply pipe, and the compressed air supply means are not fixed to the casing, an external force acts on the container and the injection unit moves relative to the casing (for example, holding with the casing). These will move following the injection unit. As a result, the connection between the injection unit and the breaking means, the connection between the injection unit and the fluid supply pipe, and the connection between the breaking means and the compressed air supply means are prevented from being released, or the connection portion is prevented from being damaged. Is done. As a result, an air supply path for supplying compressed air from the compressed air supply means to the container is held, and air injection leakage is suppressed. Further, a fluid supply path for supplying fluid (air and sealing agent) from the injection unit to the pneumatic tire is held, and fluid injection leakage is suppressed.

  Further, the suppression of the air injection leakage is performed with a simple structure in which the breaking means is fixed only to the injection unit and the compressed air supply means is connected to the breaking means, and the suppression of the fluid injection leakage is performed by the injection unit. It is made with a simple structure in which a fluid supply pipe is connected.

  The sealing / pump-up device according to claim 2, wherein the compressed air supply means is connected to the compressed air generating apparatus that is fixed to the housing and generates compressed air, and the compressed air generating apparatus and the breaking means. An air supply pipe having flexibility, and the fluid supply pipe has flexibility.

  In the sealing / pump-up device according to claim 2, since the air supply pipe connecting the compressed air generating device and the breaking means has flexibility and the fluid supply pipe has flexibility, an external force acts on the container. Thus, the followability of the air supply pipe and the fluid supply pipe when the injection unit moves with respect to the housing is improved as compared with the case where the air supply pipe and the fluid supply pipe do not have flexibility. Thereby, the air supply path and the fluid supply path are effectively held, and the air injection leakage and the fluid injection leakage are further suppressed.

  The sealing / pump-up device according to claim 3, wherein the breaking means has a hook portion, and the injection unit has a hooked portion to which the hook portion is hooked when the breaking means is inserted. .

In the sealing and pump-up device according to the third aspect, when the breaking means is inserted into the injection unit, the hooking portion is hooked on the hooked portion. Thereby, it is suppressed that a breaking means is extruded from an injection | pouring unit with the pressure from the compressed air supplied to the container.
Moreover, since the breaking means is fixed only to the injection unit by inserting the breaking means into the injection unit, the operation of fixing the breaking means becomes easy.

  The sealing / pump-up device according to claim 4, wherein the injection unit has an engaging portion, and the casing is engaged with the engaging portion to hold the injection unit in the casing. It has an engaging part.

  In the sealing / pump-up device according to the fourth aspect, when the engaging portion of the injection unit is engaged with the engaged portion of the casing, the injection unit is held by the casing. Here, when the engaged state between the engaged portion and the engaging portion is released, the holding state between the injection unit and the housing is released, and the injection unit can be removed from the housing. Thereby, replacement | exchange of the injection | pouring unit with which the container was connected is attained.

  As described above, the sealing / pump-up device of the present invention has a simple structure and can suppress air injection leakage by holding the air supply path to the container even when an external force is applied to the container.

It is a fragmentary sectional side view which shows the state which connected the sealing pump-up apparatus and pneumatic tire of 1st Embodiment. It is the perspective view which looked at the housing | casing of the sealing pump-up apparatus of 1st Embodiment from the bottom face side. It is a partial side view which shows the state before inserting a piercing jig | tool into the piercing tool insertion hole of the injection | pouring unit of 1st Embodiment. It is a fragmentary sectional side view which shows the state which inserted the piercing jig | tool into the breach tool insertion hole of the injection | pouring unit of 1st Embodiment. It is a perspective view which shows the state before inserting the injection | pouring unit which connected the container of 1st Embodiment to a holding | maintenance part. It is a perspective view which shows the state after inserting the injection | pouring unit which connected the container of 1st Embodiment in the holding | maintenance part. It is a perspective view which shows the state which inserted the injection | pouring unit which connected the container of 1st Embodiment to the holding | maintenance part, rotated it, and was hold | maintained at the holding | maintenance part. It is a perspective view which shows the state by which the injection | pouring unit which connected the container of 1st Embodiment was hold | maintained at the holding | maintenance part, and the piercing jig | tool was inserted in the piercing tool insertion hole. It is a fragmentary sectional side view which shows the state which external force acted on the container of the injection | pouring unit which connected the container of 1st Embodiment, and the injection | pouring unit inclined from the holding | maintenance part.

[First Embodiment]
Hereinafter, a first embodiment of the sealing / pump-up device of the present invention will be described.
The sealing / pump-up device 10 (hereinafter simply referred to as “sealing device”) replaces tires and wheels when a pneumatic tire (hereinafter simply referred to as “tire”) mounted on a vehicle such as an automobile punctures. This is a device for repairing a puncture hole of a tire with a sealing agent and repressurizing (pumping up) the internal pressure of the tire to a specified pressure. FIG. 1 shows a state where the sealing device 10 and the tire 100 are connected.

  As shown in FIGS. 1 to 4, the sealing device 10 includes a box-shaped casing 11 (an example of a housing) and a liquid container 18 (an example of a container) that contains a sealing agent 32 for repairing a puncture hole of the tire 100. The injection port 20 connected to the outlet 29 of the liquid container 18 and held by the holding portion 160 of the casing 11 and the breaker insertion hole 44 communicating with the pressurized liquid supply chamber 40 of the injection unit 20 are inserted. Then, a breaker 82 (an example of a breaker) that breaks an aluminum seal 30 (an example of a seal member) that seals the outlet 29 of the liquid container 18 and is fixed only to the injection unit 20 by the second claw 203A, and a casing 11, the compressor unit 12 (an example of a compressed air generation device) that generates compressed air, and the piercing tool 82 and the compressor unit 12 are connected to each other. An air hose 170 (an example of an air supply pipe), a joint hose 78 (fluid supply) that guides the sealing agent 32 and the compressed air that are connected to the injection unit 20 and flow out to the pressurized liquid supply chamber 40 through the outlet 29. An example of piping).

(casing)
As shown in FIG. 1, the inside of the casing 11 is divided into a compressor chamber 150 and a container loading chamber 152, the compressor unit 12 is fixed to the compressor chamber 150, and the injection unit 20 is held in the container loading chamber 152. A holding part 160 is provided. The container loading chamber 152 is opened by opening a lid 154 provided in the casing 11 so as to be openable and closable. The lid 154 constitutes a part of the upper wall 11U of the casing 11 when closed. To do. In addition, in the sealing device 10 of this embodiment, it has the structure which stores separately the coupling body 110 which connected the liquid agent container 18 and the injection | pouring unit 20, and the casing 11, and when using the sealing device 10, a figure is shown. As shown in FIG. 1, the lid 154 is opened so that the coupling body 110 is held by the holding portion 160.

  In addition, a manual 17 describing the operation procedure of the sealing device 10 and precautions for use is attached to the back surface of the lid 154. Since the lid 154 is opened when the sealing device 10 is used, the user can easily see the manual 17.

  On the other hand, the ceiling wall 156 of the compressor chamber 150 constitutes a part of the upper wall 11U of the casing 11 together with the lid 154, and the power switch of the compressor unit 12 is placed on the surface (upper surface in FIG. 1) of the ceiling wall 156. 158 and a pressure gauge (not shown) for measuring the pressure of the compressed air generated by the compressor unit 12 are provided.

  As shown in FIGS. 1 and 2, the bottom wall 11 </ b> B of the casing 11 is provided with a through hole 162 having a rectangular cross section under the holding portion 160. The through hole 162 is disposed at a position overlapping the breaker insertion hole 44 of the injection unit 20 of the connector 110 held by the holding portion 160 when viewed from below the casing 11. Further, the size of the through hole 162 is larger than the substantially rectangular base portion 86 of the piercing tool 82, and when the insertion portion 84 of the piercing tool 82 is inserted into the piercing tool insertion hole 44, the through hole The base portion 86 of the piercing tool 82 is accommodated at 162.

  Further, a storage groove 164 for storing an air hose 170 having one end connected to the compressor unit 12 and the piercing tool 82 connected to the other end is provided on the back surface (the lower surface in FIG. 1) of the bottom wall 11B of the casing 11. It has been. The storage groove 164 extends from the lower side of the compressor unit 12 to the through hole 162, and is set so that the air hose 170 storing the groove width and the groove depth does not protrude from the back surface of the bottom wall 11B.

(Compressor unit)
The compressor unit 12 includes an air compressor (not shown), a drive motor for the air compressor, and a drive circuit for the drive motor. As shown in FIG. 1, the compressor unit 12 includes a power cable 14 that extends to the outside of the casing 11, and a cigarette lighter socket installed in the vehicle is attached to the tip of the power cable 14. An insertable plug 15 is provided. By inserting the plug 15 into the socket of the cigarette lighter, power can be supplied from the battery mounted on the vehicle to the drive circuit. When the power switch 158 described above is turned on, power is supplied to the drive circuit. The compressor unit 12 is set so as to be able to generate compressed air having a pressure (for example, 300 kPa or more) higher than a specified pressure defined for each type of tire 100 to be repaired. The power cable 14 is accommodated in the container loading chamber 152 when the sealing device 10 is not used.

  The compressed air generated by the air compressor is supplied to the piercing tool 82 through an air hose 170 connected to an exhaust pipe 166 extending to the outside of the compressor unit 12. The air hose 170 may be a rubber or resin hose that is generally used conventionally.

(Liquid container)
FIG. 3 shows a state where the coupling body 110 is held by the holding portion 160 of the bottom wall 11B. As shown in FIG. 3 (FIG. 3), the liquid agent container 18 accommodates the sealing agent 32 therein, and the lower end portion becomes a cylindrical portion (neck portion 26) having a smaller diameter than the container main body portion on the upper end side. It is shaped as follows. The opening at the tip (lower end in FIG. 3) of the neck 26 is an outlet 29 through which the sealing agent 32 flows out from the liquid container 18 and is closed with a film-like aluminum seal 30. The outer peripheral edge of the aluminum seal 30 is fixed to the peripheral edge of the outlet 29 over the entire circumference. A stepped portion 28 is formed in the middle portion of the neck portion 26 so as to extend to the outer peripheral side.

  The liquid container 18 is formed from various resin materials having gas barrier properties and metal materials such as an aluminum alloy, and the type of the tire 100 (see FIG. 1) to be repaired by the sealing device 10 inside. A larger amount of sealing agent 32 than a prescribed amount (for example, 200 g to 800 g) corresponding to the size or the like is accommodated.

(Injection unit)
As shown in FIG. 3, the injection unit 20 includes a unit main body 34 that is formed in a substantially bottomed cylindrical shape with an upper end opened, and a leg 36 that projects from the lower end of the unit main body 34 to the outer peripheral side. An example of an engaging portion). The lower end side of the neck portion 26 of the liquid agent container 18 is inserted into the inner peripheral side of the unit main body portion 34, and the step portion 28 of the neck portion 26 is joined to the upper end surface (upper end surface of the peripheral wall portion) of the unit main body portion 34. Is connected and fixed to the injection unit 20 to form a connecting body 110. When the neck 26 is joined to the unit main body 34, a pressurized liquid supply chamber 40 is formed between the inner wall surface of the unit main body 34 and the aluminum seal 30. The pressurized liquid supply chamber 40 communicates with the inside of the liquid agent container 18 when the aluminum seal 30 is broken by the piercing tool 82. That is, when the aluminum seal 30 is broken and the outlet 29 is opened, the sealing agent 32 flowing out from the outlet 29 flows into the pressurized liquid supply chamber 40.

  Further, the leg portion 36 has a substantially rectangular shape in a plan view (viewed from the bottom surface side), the end in the longitudinal direction protrudes in an arc shape, and is provided on the inner surface (upper surface in FIG. 1) of the bottom wall 11B. It is held by a protruding holding portion 160 (an example of an engaged portion). The holding unit 160 will be specifically described. The holding unit 160 includes a first protrusion 167 and a second protrusion 168 that are opposed to each other with the through hole 162 interposed therebetween. The first protrusions 167 and the second protrusions are arranged with an interval longer than the length of the leg part 36 in the short direction, and the leg part 36 is interposed between the first holding part 160 and the second holding part 160. It can be inserted (see FIG. 6). In addition, a first recess 167A and a second recess 168A are formed below the first protrusion 167 and the second protrusion 168, respectively, and inserted between the first protrusion 167 and the second protrusion 168. When the leg part 36 is rotated in the axial direction of the coupling body 110, the end part in the longitudinal direction of the leg part 36 enters the first dent part 167A and the second dent part 168A, respectively (see FIG. 7). Furthermore, in the present embodiment, the wall surface of the first dent portion 167A and the wall surface of the second dent portion 168A are slightly larger than the trajectory through which the end when the leg portion 36 is rotated, It serves as a guide for rotating the coupling body 110 in the axial direction. Further, the circle slightly larger than the above-mentioned locus is slightly to the extent that there is no backlash when the longitudinal end of the leg portion 36 enters the wall surface of the first recess 167A and the second recess 168A. A large circle is preferable. In this way, one end of the leg 36 in the longitudinal direction enters the first depression 167A of the first protrusion 167, and the other end of the leg 36 enters the second depression 168A of the second protrusion 168. The coupling body 110 is held by the holding unit 160.

  On the other hand, a substantially cylindrical inner peripheral cylindrical portion 42 is formed coaxially on the inner peripheral side of the unit main body 34. The inside of the inner peripheral cylindrical portion 42 has a circular cross-sectional hole (described above) that passes between the lower end surface of the injection unit 20 (the bottom surface of the leg portion 36) and the upper end surface of the inner peripheral cylindrical portion 42 along the central axis. The breaking tool insertion hole 44).

  In the sealing device 10 of the present embodiment, when the upright state shown in FIG. 1 and FIG. 3 is set (the liquid agent container 18 is in the upper state and the injection unit 20 is in the lower state), the sealing agent 32 in the liquid agent container 18 is caused by its own weight. The aluminum seal 30 of the liquid container 18 is in a pressurized state.

  As shown in FIG. 3, a cylindrical gas-liquid supply pipe 74 extending to the outer peripheral side is integrally formed on the peripheral wall portion of the unit main body 34. The gas-liquid supply pipe 74 has an inside communicating with the pressurized liquid supply chamber 40, and a tip portion connected to a joint hose 78 via a nipple 76. A valve adapter 80 that can be connected to the tire valve 102 of the tire 100 is provided at the tip of the joint hose 78. When the sealing device 10 is used, after the coupling body 110 is attached to the holding portion 160, the joint hose 78 is taken out from the gap between the open lid 154 and the casing 11 (see FIG. 1), and the valve adapter 80 is removed. By connecting to the tire valve 102, the pressurized liquid supply chamber 40 and the tire 100 communicate with each other. As a result, the sealing agent 32 that has flowed into the pressurized liquid supply chamber 40 is supplied to the tire 100 via the internal spaces of the gas-liquid supply pipe 74, the joint hose 78, and the valve adapter 80. These internal spaces constitute the fluid supply path 120. As the joint hose 78, a rubber or resin hose generally used conventionally can be used.

(Breaking tool)
As shown in FIG. 3, the piercing tool 82 includes a rod-shaped insertion portion 84 that is press-fitted (inserted) into the piercing tool insertion hole 44, and a substantially rectangular base portion 86 formed at the base end portion of the insertion portion 84. I have. A connection pipe 180 that can connect the other end of the air hose 170 described above is provided on a side surface of the base portion 86, and the air hose 170 is connected to the connection pipe 180. The piercing tool 82 is formed with an air passage 182 that passes from the connecting pipe 180 through the base portion 86 and opens at the distal end of the insertion portion 84. In the present embodiment, a check valve is not provided in the air passage 182, but a check valve may be provided for the purpose of preventing the sealing agent 32 from flowing from the liquid agent container 18 to the air compressor.

  On the other hand, the distal end portion 85 of the insertion portion 84 is shaped to easily break through the aluminum seal 30 (substantially conical in this embodiment). Further, two insertion grooves are formed on the outer peripheral surface of the insertion portion 84, and O-rings 96 are respectively inserted into the pair of insertion grooves. Further, the length of the insertion portion 84 is longer than the dimension from the lower end of the breaking tool insertion hole 44 to the aluminum seal 30. Accordingly, when the entire insertion portion 84 of the piercing tool 82 is press-fitted into the piercing tool insertion hole 44, the distal end portion 85 of the insertion portion 84 is positioned above the aluminum seal 30. That is, the distal end portion 85 of the insertion portion 84 enters the liquid agent container 18. In this state, the compressed air is efficiently supplied into the liquid agent container 18 by supplying the compressed air through the piercing tool 82.

  At this time, each of the pair of O-rings 96 presses the outer peripheral end to the inner peripheral surface of the breaker insertion hole 44 over the entire circumference in a state where the insertion portion 84 is press-fitted into the breaker insertion hole 44. ing. Thereby, in a state where the entire insertion portion 84 is press-fitted into the breaker tool insertion hole 44, the breaker tool insert hole 44 is sealed by the pair of O-rings 96, that is, the breaker tool insert hole 44 is sealed. It becomes a state.

  As shown in FIGS. 3 and 4, near the both ends of the base portion 86, first support columns 193 that are elastically deformable and rise vertically from the upper surface of the base portion 86 are provided. A first claw 193A having a triangular shape in a side view is integrally formed on the side surface on the distal end side and the insertion portion 84 side of the first support column 193. Further, on the insertion portion 84 side of the first support column 193, an elastically deformable second support column 203 that rises vertically from the upper surface of the base portion 86 and has a lower height than the first support column 193 is provided. A triangular second claw 203 </ b> A is integrally formed on the distal end side of the second support column 203 and the side surface on the first support column 193 side in a side view. Note that both the first claw 193A and the second claw 203A have a flat bottom surface parallel to the base portion 86 in a side view.

  The interval between the first struts 193 is wider than the length of the legs 36 in the short direction, and the distance between the first claws 193A is narrower than the length of the legs 36 in the short direction. For this reason, the first claw 193 </ b> A is caught on the edge of the leg 36. Specifically, when the insertion portion 84 of the piercing tool 82 is inserted into the piercing tool insertion hole 44, the first claw 193A is elastically deformed outward when it exceeds the edge of the leg portion 36 in the short direction. When the first claw 193A passes through the edge of the leg portion 36 in the short direction, the first struts return to their original positions. As a result, the flat surface of the first claw 193A is caught on the edge of the leg portion 36 in the short direction. Note that the tip of the piercing tool 82 does not reach the aluminum seal 30 at the position where the first claw 193A passes through the edge of the leg 36 in the short direction. That is, the aluminum seal 30 is not pierced.

  On the other hand, the second column 203 can be inserted into the through hole 37 formed in the leg portion 36 of the injection unit 20, and when the second column 203 is inserted into the through hole 37, the second claw 203 </ b> A becomes the edge of the through hole 37. It is supposed to be caught in. Specifically, the insertion portion 84 of the piercing tool 82 is inserted into the piercing tool insertion hole 44, and the second claw 203 </ b> A of the second column 203 is aligned with the through hole 37 by aligning the position of the second column 203 with the through hole 37. When inserted, the second strut 203 is elastically deformed inward, and the distance between the two struts 203 is narrowed. When the second claw 203A passes through the through hole 37, the distance between the two struts 203 is restored. Return to. As a result, the second claw 203 </ b> A is caught on the edge of the through hole 37. At the position where the second claw 203A passes through the through hole 37, the aluminum seal 30 is pierced by the distal end portion 85 of the piercing tool 82, and the distal end portion 85 enters the liquid agent container 18.

  In a state where the piercing tool 82 is inserted into the piercing tool insertion hole 44 and the second claw 203A is hooked on the edge of the through hole 37, the exhaust pipe 166, the air hose 170, and the air passage 182 are interposed through the internal spaces. Compressed air generated by the air compressor is supplied into the liquid container 18. These internal spaces constitute the air supply path 60.

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

  First, when the tire 100 is punctured, the user removes the casing 11 from the storage space of the vehicle, arranges it on the road surface or the like so that the power switch 158 and the pressure gauge (not shown) face upward, and the lid 154. To open the container loading chamber 152. Since the manual 17 is affixed to the back surface of the lid 154 opened at this time, the user can work while checking the manual 17 sequentially.

  Next, the user takes out the coupling body 110 stored separately from the casing 11 from the storage space of the vehicle, places the injection unit 20 downward (see FIG. 5), and moves the leg portion 36 to the first protrusion 167 and the second protrusion 168. (See FIG. 6), and then the connecting body 110 is rotated in the axial direction so that the end portions in the longitudinal direction of the leg portions 36 are inserted into the first recess portion 167A and the second recess portion 168A (see FIG. 6). 7). Thereby, the coupling body 110 is held by the holding unit 160.

  Then, the valve adapter 80 is connected to the tire valve 102 of the tire 100 through the joint hose 78 previously connected to the gas-liquid supply pipe 74 of the injection unit of the coupling body 110 through the upper portion of the container loading chamber 152 (see FIG. 1). . Thereby, the fluid supply path 120 is configured, and the pressurized liquid supply chamber 40 and the inside of the tire 100 communicate with each other through the fluid supply path 120.

  Next, the user takes out the power cable 14 stored in the container loading chamber 152 from the upper portion of the container loading chamber 152, inserts the plug 15 into a socket (not shown) of a cigarette lighter installed in the vehicle, and turns on the vehicle engine. Call. Thereby, electric power can be supplied from the vehicle battery (DC 12 V) to the drive circuit of the compressor unit 12.

  Next, the lower part of the casing 11 is lifted from the road surface, and the positions of the base part 86 and the through hole 162 of the piercing tool 82 are matched, and the positions of the piercing tool insertion hole 44 and the tip part 85 of the piercing tool 82 are matched. After the alignment, the insertion portion 84 of the piercing tool 82 is inserted into the piercing tool insertion hole 44. When the entire base portion 86 of the piercing tool 82 is inserted into the through hole 162, the aluminum seal 30 is pierced by the tip portion 85. When the tip 85 breaks through the aluminum seal 30, the second claw 203 </ b> A is caught on the edge of the through hole 37 of the injection unit 20 (see FIG. 8), and the tip 85 is kept in the liquid container 18. Let At this time, the O-ring 96 provided in the insertion portion 84 comes into contact with the inner surface of the breaking tool insertion hole 44 and seals the breaking tool insertion hole 44. Thereby, it is suppressed that the fluid leaks outside from the breaker tool insertion hole 44.

  When the aluminum seal 30 is pierced, the sealing agent 32 in the liquid agent container 18 flows out to the pressurized liquid supply chamber 40 through the hole 31 formed in the aluminum seal 30. When the power switch 158 is turned on and the compressor unit 12 is operated, the compressed air generated by the air compressor of the compressor unit 12 is supplied into the liquid container 18 through the air supply path 60. When the compressed air is supplied into the liquid agent container 18, the compressed air floats upward in the liquid agent container 18 to form a space (air layer G) on the sealing agent 32 in the liquid agent container 18 (FIG. 4). reference). The sealing agent 32 pressurized by the air pressure from the air layer G is pushed out to the pressurized liquid supply chamber 40 through the hole 31 formed in the aluminum seal 30. Then, the sealing agent 32 in the pressurized liquid supply chamber 40 is injected (supplied) into the pneumatic tire 100 through the fluid supply path 120. Thereafter, when all of the sealing agent 32 is supplied from the pressurized liquid supply chamber 40 and the fluid supply path 120 to the tire 100, the compressed air passes through the liquid agent container 18, the pressurized liquid supply chamber 40, and the fluid supply path 120. It is injected (supplied) into the tire 100.

  Next, when the user confirms that the internal pressure of the tire 100 has become the specified pressure using a pressure gauge (not shown), the compressor unit 12 is stopped and the valve adapter 80 is removed from the tire valve 102.

  The user travels preliminarily for a certain distance (for example, 10 km) using the tire 100 into which the sealing agent 32 has been injected within a certain time after the completion of the inflation of the tire 100. As a result, the sealing agent 32 is uniformly diffused inside the tire 100, and the sealing agent 32 is filled in the puncture hole, thereby closing the puncture hole.

  After the preliminary run is completed, the user re-measures the internal pressure of the tire 100, reconnects the valve adapter 80 of the joint hose 78 to the tire valve 102 as necessary, and restarts the compressor unit 12 to define 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 device 10 of the present embodiment, as shown in FIG. 1, the piercing tool 82 is fixed only to the injection unit 20, and the air hose 170 is connected to the piercing tool 82. Connected to the injection unit 20. In other words, since the piercing tool 82, the joint hose 78, and the air hose 170 are not fixed to the casing 11, an external force acts on the liquid container 18 and the injection unit 20 moves relative to the casing 11 (as shown in FIG. 9). In the case where the holding state with the holding unit 160 is released and the injection unit 20 moves), these follow the injection unit 20. As a result, the connection between the injection unit 20 and the piercing tool 82, the connection between the injection unit 20 and the joint hose 78, and the connection between the piercing tool 82 and the air hose 170 are released, or these connection parts are damaged. Is suppressed. As a result, the air supply path 60 for supplying compressed air from the compressor unit 12 to the liquid container 18 is held, and air injection leakage is suppressed. Further, the fluid supply path 120 for supplying fluid (air and sealing agent 32) from the injection unit 20 to the tire 100 is held, and fluid injection leakage is suppressed.

  In addition, the air injection leakage is suppressed by a simple structure in which the piercing tool 82 is fixed only to the injection unit 20 and the air hose 170 is connected to the piercing tool 82, and the fluid injection leakage is suppressed. 20 with a simple structure in which a joint hose 78 is connected.

  Furthermore, since the air hose 170 that connects the compressor unit 12 and the piercing tool 82 is made of a flexible material such as a conventional hose material, so-called rubber material or resin material, external force is applied to the liquid container 18. The followability when acting and the injection unit 20 moves relative to the casing 11 is improved. Since the joint hose 78 that connects the injection unit and the tire 100 is made of a flexible material such as a conventional hose material, so-called rubber material or resin material, an external force acts on the liquid container 18. Thus, the followability when the injection unit 20 moves relative to the casing 11 is improved. Thereby, the air supply path 60 and the fluid supply path 120 are effectively held, and the air injection leakage and the fluid injection leakage are further suppressed. The air hose 170 and the joint hose 78 may be flexible metal bellows tubes.

  Further, when the second claw 203 </ b> A of the piercing tool 82 is caught on the edge of the through hole 37 of the injection unit 20, the piercing tool 82 is pushed out of the injection unit 20 by the pressure from the air layer G of the liquid container 18. It is suppressed. Furthermore, since the piercing tool 82 is fixed to the injection unit 20 by inserting the piercing tool 82 into the piercing tool insertion hole 44 of the injection unit 20, the operation of fixing the piercing tool 82 is simplified.

  After completing the repair of the tire 100 using the sealing device 10, the coupling body 110 whose liquid container 18 is emptied is removed from the holding portion 160, the power cable 14 is stored in the container loading chamber 152, and the lid 154 is closed and the casing 11 is stored. At this time, the leg 36 of the injection unit 20 is removed from the holding unit 160 by rotating the connecting body 110 to a predetermined position and lifting the connecting body 110, so that the connecting body 110 can be easily removed from the casing 11. . Therefore, the connection body 110 can be easily replaced.

[Other embodiments]
In the above-described embodiment, the connection body 110 in which the liquid agent container 18 and the injection unit 20 are connected in advance and the casing 11 are separately stored. However, the present invention is not limited to this structure, and the liquid agent container 18 is not limited thereto. And the injection unit 20 may be stored separately and connected when the sealing device 10 is used to form the connection body 110.

  In the above-described embodiment, the air hose 170 is connected to the connection pipe 180 of the piercing tool 82. However, this connection is a screw connection or a part where the connection pipe 180 of the air hose 170 is inserted all around. It is good also as a structure which presses over and connects, and when using the sealing apparatus 10, it is good also as a structure which connects the connection pipe | tube 180 and the air hose 170 of the breaching tool 82. FIG.

  Furthermore, in the above-described embodiment, the holding portion 160 is configured by the first protrusion 167 and the second protrusion 168. However, the present invention is not limited to this configuration, and the holding portion may have any structure as long as it can hold the coupling body. Well, for example, the legs of the injection unit 20 are formed in a disk shape, and external threads are formed on the outer peripheral surface thereof, and the holding portions are erected on the bottom wall 11B, and the cylindrical bodies are formed with internal threads on the inner peripheral surface thereof. It is good also as a structure which hold | maintains a connection body to the holding part 160 by screwing together.

  Further, in the above-described embodiment, the distal end portion 85 of the breaching tool 82 is configured to directly pierce the aluminum seal 30. However, the present invention is not limited to this configuration. Alternatively, a member having a sharp point may be disposed, and the member may be pushed out from the breaker insertion hole 44 by the breaker 82 and the aluminum seal 30 may be broken through the sharp tip of the member.

  And in the above-mentioned embodiment, it was set as the structure which breaks the aluminum seal 30 with the front-end | tip part 85 of the breaching tool 82, For example, the hollow 31 provided in the aluminum seal 30 is provided in the aluminum seal 30 so that the hole 31 opened with the breaching tool 82 may become large. It may be. By doing in this way, the hole 31 becomes large and the aluminum seal 30 flows out from the liquid agent container 18 efficiently.

  In the above-described embodiment, the lid 154 can be opened and closed. However, the present invention is not limited to this configuration, and the lid 154 may be removable from the casing 11 (that is, a detachable structure). .

  Furthermore, in the above-described embodiment, the joint hose 78 is connected to the injection unit 20 in advance. However, the present invention is not limited to this configuration, and the joint hose 78 is connected to the injection unit 20 in advance. Instead, the power supply cable 14 and the container loading chamber 152 may be housed. In this case, the joint hose 78 may be connected to the injection unit 20 after the injection unit 20 is held by the holding unit 160.

  The embodiments of the present invention have been described above with reference to the embodiments. However, these embodiments are merely examples, and various modifications can be made without departing from the scope of the invention. It goes without saying that the scope of rights of the present invention is not limited to these embodiments.

10 Sealing / pump-up device 11 Casing (housing)
12 Compressor unit (compressed air generator)
18 Liquid container (container)
20 Injection unit 29 Outlet 30 Aluminum seal (seal member)
32 Sealing agent 36 Leg (engaging part)
37 Through-hole (hooked part)
78 Joint hose (fluid supply piping)
82 Breaking tools (breaking means)
100 tires (pneumatic tires)
160 Holding part (engaged part)
167 1st protrusion 167A 1st hollow part 168 2nd protrusion 168A 2nd hollow part 170 Air hose (air supply piping)
203 2nd support 203A 2nd nail (hook part)

Claims (4)

A housing,
An infusion unit connected to the outlet of the container containing the sealing agent and held in the housing;
Breaking means that breaks a seal member that seals the outlet when inserted into the injection unit, and is fixed only to the injection unit;
Compressed air supply means connected to the breaking means and for supplying compressed air to the container in which the seal member is broken;
A sealing agent that is connected to the injection unit and flows out to the injection unit through the outlet, and a fluid supply pipe that guides the compressed air to a pneumatic tire;
Sealing and pump-up device. The compressed air supply means includes a compressed air generation device that is fixed to the housing and generates compressed air, and a flexible air supply pipe that connects the compressed air generation device and the breaking means,
The sealing / pump-up device according to claim 1, wherein the fluid supply pipe has flexibility. The breaking means has a hooking portion,
The sealing / pump-up device according to claim 1, wherein the injection unit has a hooked portion that is hooked by the hooking portion when the breaking means is inserted. The injection unit has an engaging portion;
The sealing / pump-up device according to any one of claims 1 to 3, wherein the housing includes an engaged portion that engages with the engaging portion and holds the injection unit in the housing. .

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