JP4743328B2 - Puncture repair liquid recovery method and recovery device - Google Patents

Description

  The present invention relates to a method and apparatus for recovering a puncture repair liquid injected into a tire, and more particularly, a puncture repair liquid capable of efficiently performing a puncture repair liquid recovery operation without removing a tire valve. The present invention relates to a recovery method and a recovery apparatus.

  In recent years, when a tire mounted on a vehicle is punctured, a puncture repair liquid is injected into the tire via a tire valve, so that the puncture is repaired immediately and at the same time the air is filled in the tire. ing.

  However, in the puncture repair method as described above, the puncture repair liquid remains in the tire. Therefore, when the tire is removed from the wheel and replaced, the puncture repair liquid overflows from the tire and stains equipment such as a tire changer. There is an inconvenience.

  As countermeasures, various methods for preventing overflow of the puncture repair liquid have been proposed. For example, it has been proposed to solidify the puncture repair liquid by injecting an emulsion coagulant into the tire where the puncture repair liquid remains, and to discard the solidified product of the puncture repair liquid after removing the tire from the wheel. (For example, refer to Patent Document 1). However, in this case, there is a drawback that it is difficult to inject the emulsion coagulant into the tire assembled in the wheel.

  In addition, it has been proposed to remove a tire valve from a wheel, insert a tube into the tire from a mounting hole of the tire valve, and discharge puncture repair liquid in the tire through the tube (for example, Patent Document 2). And Patent Document 3). However, in this case, there is a disadvantage that the tire valve needs to be cut and the tire valve cannot be reused.

  Further, a pipe for forming a gas flow path and a pipe for forming a liquid flow path are inserted into the tire valve, and the pressurized air is introduced into the tire through the gas flow path while the liquid flow path is It has been proposed to discharge the puncture repair liquid to the outside of the tire (see, for example, Patent Document 4). However, in this case, it is necessary to insert a pipe for forming the gas flow path and a pipe for forming the liquid flow path into the tire valve, and the liquid flow path must be made very thin. There is a drawback that it takes a long time to discharge the liquid.

JP 2009-41006 A JP 2003-127242 A JP-A-10-67212 JP 2007-33210 A

  An object of the present invention is to provide a recovery method and a recovery device for puncture repair liquid that enables efficient recovery of the puncture repair liquid without excising the tire valve.

  In order to achieve the above object, a method of recovering puncture repair liquid according to the present invention includes a tube inserted into a tire from a tire valve attached to the wheel and having a length that reaches at least the inner surface of the tire, and one end portion of the tire Using a puncture repair fluid recovery device having a pipe member connected to the valve and having the other end connected to a pressurized air supply source, from the tire valve of the wheel in which the puncture repair fluid has been injected into the tire Remove the valve core, insert the tube into the tire through the tire valve, connect one end of the pipe member to the tire valve, and connect the pressurized air supply source to the other end of the pipe member. After the tire is filled with air from the pressurized air supply source, the pressurized air supply source is removed from the other end of the pipe member to release the pressure in the tire. The utilized is characterized in that recovering the puncture repair liquid in the tire from the other end of the pipe member.

In addition, a puncture repair liquid recovery device of the present invention for achieving the above object includes a tube having a length inserted into a tire from a tire valve attached to the wheel and reaching at least the tire inner surface, and one end portion of the tube. A pipe member connected to the tire valve and having the other end connected to a pressurized air supply source, and the tube and the pipe member can be connected to each other. .
Furthermore, the puncture repair liquid recovery device of the present invention for achieving the above object includes a tube having a length inserted into a tire from a tire valve attached to a wheel and reaching at least the tire inner surface, and one end portion of the tube. A pipe member connected to the tire valve while the other end is connected to a pressurized air supply source, and an attachment connected to the other end of the pipe member. It has a structure that is detachable from the air supply source and has an opening that opens in a direction intersecting the axial direction of the pipe member.

  In the present invention, a puncture repair liquid recovery device including a tube and a pipe member is used, the tube is inserted into the tire via the tire valve, and the tire valve, the pipe member, and the pressurized air supply source are connected to each other. After the tire is filled with air from the pressurized air supply source, the puncture repair liquid in the tire is recovered from the other end of the pipe member by utilizing the action of releasing the pressure in the tire. In this case, it is not necessary to excise the tire valve, and the tire valve can be used as it is after the puncture repair liquid is collected. Also, since the tube can be made as thick as the tire valve allows, when inserting a gas channel tube and a liquid channel tube into the tire valve as before. Compared with, the puncture repair liquid can be collected in a short time. Therefore, according to the present invention, the recovery operation of the puncture repair liquid can be performed efficiently without excising the tire valve. Moreover, according to the present invention, there is also an advantage that the puncture repair liquid recovery device can be configured with a small number of parts without complication.

  The pipe member is preferably flexible. In this case, after the tire is filled with air from the pressurized air supply source, for example, the compressed air is supplied from the other end of the pipe member in a state where the pipe member is bent or crushed to close the flow path of the pipe member. The source is removed, and then the puncture repair liquid in the tire is recovered from the other end of the pipe member by conducting the flow path of the pipe member. Thereby, it is possible to prevent the puncture repair liquid from splashing when the pressurized air supply source is removed.

  At the other end of the pipe member, an attachment having a configuration that is detachable from the pressurized air supply source and having an opening that opens in a direction that intersects the axial direction of the pipe member is mounted. It is preferable to collect the puncture repair liquid with the opening directed downward. Alternatively, it is preferable that the puncture repair liquid is collected in a state where the pipe member has a bent shape or a curved shape and the other end portion of the pipe member faces downward. Alternatively, it is preferable that the puncture repair liquid is collected in a state where the pipe member has a bellows portion in a part in the longitudinal direction and the other end portion of the pipe member faces downward. Thereby, scattering of the puncture repair liquid can be prevented, and the puncture repair liquid can be reliably collected in a container or the like.

  The pipe member may have an on-off valve in a part in the longitudinal direction. In this case, after filling the tire from the pressurized air supply source with the open / close valve opened, the pressurized air supply source is removed from the other end of the pipe member with the open / close valve closed, and then The puncture repair liquid in the tire is collected from the other end of the pipe member by opening the on-off valve. Thereby, it is possible to prevent the puncture repair liquid from splashing when the pressurized air supply source is removed.

  In the present invention, it is preferable to make the tube thinner than the finest detail of the through hole of the tire valve, and to provide a locking portion thicker than the finest detail of the through hole of the tire valve at the end of the tube on the tire valve side. In this case, the tube can be easily inserted into the tire from the tire valve, and the locking portion provided at the end of the tube on the tire valve side is locked by the finest details of the through hole of the tire valve. Can be prevented from falling into the tire.

  Moreover, it is good also as a structure which can connect a tube and a pipe member mutually. In this case, since the tube can be inserted into the tire and the pipe member can be attached to the tire valve at the same time, workability can be improved. Moreover, since the airtightness between the tube and the pipe member is ensured, the puncture repair liquid can be discharged smoothly.

  It is preferable that the tube has a scale indicating a cutting length, and the tube is cut according to the tire size based on the scale. In other words, it is possible to adapt to various tire sizes by setting the length of the tube so that it can reach from the tire valve to the tire inner surface for all tires assumed, and cutting the tube appropriately based on the scale. it can. The scale is preferably displayed directly on the tube, but in some cases, a scale printed on paper or the like may be included in the tube.

  Furthermore, the recovery device for puncture repair liquid preferably includes a coagulant for coagulating the puncture repair liquid and a flexible bag for containing the puncture repair liquid. In this case, the puncture repair liquid extracted from the tire is put into a bag, the puncture repair liquid and the coagulant are mixed in the bag, and the puncture repair liquid is recovered in a coagulated state. As a result, the used puncture repair liquid can be easily and quickly discarded as combustible waste.

It is a side view which shows the collection | recovery apparatus of the puncture repair liquid which consists of embodiment of this invention. It is a side view which shows an example of the tire valve used by this invention. The tube used by this invention is illustrated, (a)-(c) is a side view which shows the principal part of a tube, respectively. The tube used by this invention is illustrated, (a)-(b) is a side view which shows the principal part of a tube, respectively. The attachment of the pipe member used by this invention is illustrated, (a)-(d) is a side view which shows an attachment, respectively. It is a side view which shows the modification of the pipe member used by this invention. It is sectional drawing which shows the further modification of the pipe member used by this invention. It is sectional drawing which expands and shows the connection structure of the pipe member and tube of FIG. It is sectional drawing which shows the modification of the connection structure of the pipe member and tube of FIG. It is a side view which shows the drainage process by the collection | recovery apparatus of the puncture repair liquid of FIG. It is a side view which shows the exhaust_gas | exhaustion process by the collection | recovery apparatus of the puncture repair liquid of FIG. It is a side view which shows the collection | recovery apparatus of the puncture repair liquid which consists of other embodiment of this invention. It is a side view which shows the collection | recovery apparatus of the puncture repair liquid which consists of other embodiment of this invention. It is a side view which shows the bellows part of the pipe member in the collection | recovery apparatus of the puncture repair liquid of FIG. It is a side view which shows the collection | recovery apparatus of the puncture repair liquid which consists of other embodiment of this invention. The pipe member in the collection | recovery apparatus of the puncture repair liquid of FIG. 15 is shown, (a)-(c) is a side view which shows the different operation state of a pipe member. It is a side view which cuts off and shows the flexible bag which enclosed the coagulant | flocculant used by this invention. It is an expanded sectional view which shows the laminate film which comprises the bag of FIG. It is a perspective view which shows the use condition of the bag of FIG.

  Hereinafter, the configuration of the present invention will be described in detail with reference to the accompanying drawings. 1 to 11 show a puncture repair liquid recovery apparatus according to an embodiment of the present invention. In FIG. 1, 1 is a pneumatic tire, 2 is a wheel, 3 is a tire valve attached to the wheel, and 4 is a puncture repair liquid injected into the pneumatic tire 1.

  As shown in FIG. 1, the puncture repair liquid recovery device of the present embodiment includes a tube 10 having a length inserted into the tire 1 from the tire valve 3 of the wheel 2 and reaching at least the tire inner surface, and the tire valve 3. And a pipe member 30 connected to the pressurized air supply source 20.

  As shown in FIG. 2, the tire valve 3 has a cylindrical through hole 3 a (shown by a broken line) inside, and a constricted portion 3 b that engages with a mounting hole of the wheel 2 on the base end side. An external thread 3c is formed on the tip side. The through-hole 3a is partially narrowed down in the longitudinal direction, and the smallest part 3d having the smallest inner diameter is formed in the part. During the internal pressure filling, a valve core (not shown) is inserted into the tire valve 3.

  On the other hand, as shown in FIGS. 3A to 3C, the tube 10 includes a locking portion 11 at the end on the tire valve side. The outer diameter of the tube 10 is smaller than the inner diameter of the most detailed 3d of the through hole 3a of the tire valve 3, but the outer diameter of the locking portion 11 is larger than the inner diameter of the most detailed 3d of the through hole 3a of the tire valve 3. Yes. In FIG. 3A, a step is formed between the tube 10 and the locking portion 11. In FIG. 3B, the locking portion 11 has a taper that gradually increases from the main body side of the tube 10. In FIG.3 (c), the latching | locking part 11 is formed by deform | transforming the edge part by the side of the tire valve of the tube 10 with a heat | fever. Moreover, you may shape | mold the latching | locking part 11 in the shape equivalent to a valve core. Of course, an adapter for forming the locking portion 11 can be attached to the tube 10.

  In this way, the tube 10 is made thinner than the most detailed 3d of the through hole 3a of the tire valve 3, while the end of the tube 10 on the tire valve side is thicker than the most detailed 3d of the through hole 3a of the tire valve 3. 11 is provided, the tube 10 can be easily inserted into the tire 1 from the tire valve 3, and the locking portion 11 of the tube 10 is locked by the most detailed 3 d of the through hole 3 a of the tire valve 3. Therefore, it is possible to prevent the tube 10 from falling into the tire 1.

  Moreover, the airtightness between the tube 10 and the tire valve 3 can be ensured by making the engaging portion 11 of the tube 10 thicker than the most detailed 3d. In order to ensure airtightness, the inner peripheral surface of the through hole 3a of the tire valve 3 and the outer peripheral surface of the engaging portion 11 of the tube 10 may be in close contact with each other, or the two may be sealed. The axial end surface of the most detailed 3d of the through-hole 3a and the axial end surface of the locking portion 11 of the tube 10 may be in close contact with each other to seal between them.

  The material of the tube 10 is not particularly limited, but rubber such as silicone rubber, synthetic resin such as polypropylene, polyethylene, polyurethane, polyamide, and fluorine resin, metal, and the like can be used. However, if it is too soft, the insertion work of the tube 10 may deteriorate.

  The outer diameter of the tube 10 is preferably in the range of 2.5 mm to 3.15 mm. If the tube 10 is too thick, it becomes difficult to pass the tube 10 through the finest detail 3d of the through hole 3a of the tire valve 3. Conversely, if the tube 10 is too thin, it takes a long time to discharge the puncture repair liquid 4. On the other hand, the outer diameter of the locking portion 11 of the tube 10 is preferably in the range of 3.2 mm to 4.0 mm. If the locking portion 11 is too thick, it is difficult to push the locking portion 11 into the tire valve 3. On the other hand, if the locking portion 11 is too thin, the tube 10 is likely to drop into the tire 1.

  As shown in FIGS. 4A to 4B, the tube 10 includes a scale 12 that indicates the cutting length with alphabets A to D, and the tube 10 is cut according to the tire size based on the scale 12. It is supposed to be. In other words, the length of the tube 10 before use is set to reach the tire inner surface from the tire valve 3 for all possible tires, and by appropriately cutting the tube 10 based on the scale 12, It adapts to various tire sizes. In FIG. 4A, the scale 12 is directly displayed on the tube 10. In FIG. 4B, the scale 12 is printed on a sheet 13 made of paper or the like. The sheet 13 on which the scale 12 is printed may be dedicated, but a part of the instruction manual may be used. In any case, the meaning of the scale 12 is described in an instruction manual or the like. For example, the instruction manual displays the correspondence between the alphabets A to D of the scale 12 and the tire size. The scale 12 may be distinguished by changing the thickness, color, number, etc. of the line, or may be added with numbers, symbols, etc. instead of the above-mentioned alphabet.

  As shown in FIG. 1, the pressurized air supply source 20 includes an electric compressor 21, a hose 22 connected to the compressor 21, and a cord 23 and a plug 24 for connecting the compressor 21 to a power source. ing. A connection fitting 25 having a female screw portion is attached to the end portion of the hose 22 so as to be rotatable.

  Note that since the pressurized air supply source 20 does not require high pressure, a bicycle inflator or the like can be used in place of the electric compressor 21. In that case, no power source is required. Of course, it is also possible to use a commercial large-scale compressor instead of the portable compressor 21.

  The pipe member 30 is composed of a cylindrical pipe having a curved shape, and one end portion 31 is connected to the tire valve 3 while the other end portion 32 is connected to the pressurized air supply source 20. Yes. The pipe member 30 has flexibility, and can be easily bent by hand, but can be restored to its original shape. Therefore, the pipe member 30 can be bent or crushed to block the flow path of the pipe member 30 as necessary.

  As a constituent material of the pipe member 30, it is preferable to use a synthetic resin such as polyvinyl alcohol (PVA) or polyethylene (PE), or a rubber such as silicone rubber.

  The connection structure between one end 31 of the pipe member 30 and the tire valve 3 and the connection structure between the other end 32 of the pipe member 30 and the pressurized air supply source 20 are not particularly limited. It may be a mechanical fastening or a fitting by elastic deformation. Here, one end portion 31 is fitted to the tire valve 3 based on elastic deformation, and the other end portion 32 is provided with an attachment 33 detachably attached to the pressurized air supply source 20. . In other words, the attachment 33 has a male screw portion that engages with the connection fitting 25 of the hose 22 of the pressurized air supply source 20.

  Various structures as shown in FIGS. 5A to 5D can be employed for the attachment 33 of the pipe member 30. In FIG. 5A, the attachment 33 includes a fixing portion 33 a that is fitted and fixed to the pipe member 30, and a connection portion 33 b that includes a male screw portion that engages with the connection fitting 25 of the pressurized air supply source 20. And an opening 33 c that opens in the axial direction of the pipe member 30. In FIG. 5B, the attachment 33 includes a fixing portion 33 a that is fitted and fixed to the pipe member 30, a tapered connection portion 33 b that is fitted to the coupling metal 25 of the pressurized air supply source 20, and the pipe member 30. And an opening 33c opening in the axial direction.

  In FIG. 5C, the attachment 33 includes a fixing portion 33 a that is fitted and fixed to the pipe member 30, and a connection portion 33 b that includes a male screw portion that engages with the connection fitting 25 of the pressurized air supply source 20. The pipe member 30 has an opening 33c that opens in a direction crossing the axial direction of the pipe member 30. In FIG. 5D, the attachment 33 includes a fixing portion 33 a that is fitted and fixed to the pipe member 30, a tapered connection portion 33 b that is fitted to the connecting metal fitting 25 of the pressurized air supply source 20, and the pipe member 30. And an opening 33c that opens in a direction intersecting the axial direction. In the case of FIGS. 5C and 5D, the puncture repair liquid 4 can be prevented from scattering by setting the opening 33c of the attachment 33 downward when the puncture repair liquid 4 is collected.

  As shown in FIG. 6, the pipe member 30 may be configured by combining a large diameter pipe 30a and a small diameter pipe 30b inserted into the large diameter pipe 30a. In this case, the large-diameter pipe 30 a is fitted into the tire valve 3, and the small-diameter pipe 30 b is fitted into the connection fitting 25 of the pressurized air supply source 20.

  Further, as shown in FIG. 7, the tube 10 and the pipe member 30 may be configured to be connected to each other. In FIG. 7, a connecting member 34 is attached to the end portion 31 of the pipe member 30, and the tube 10 and the pipe member 30 are connected to each other via the connecting member 34. In this case, since the tube 10 can be inserted into the tire 1 and the pipe member 30 can be attached to the tire valve 3 at the same time, workability can be improved. Moreover, since the airtightness between the tube 10 and the pipe member 30 is ensured, the puncture repair liquid 4 can be discharged smoothly.

  As shown in FIG. 8, the connecting member 34 includes a fixing portion 34 a that is fitted and fixed to the pipe member 30, a connection portion 34 b that has an internal thread portion that engages with the tire valve 3, and an end portion of the tube 10. And a cylindrical projection 34c to be held. In the example of FIG. 8, the cylindrical protrusion 34c is inserted inside the tube 10, but in the example of FIG. 9, the tube 10 is inserted inside the cylindrical protrusion 34c. . In the former case, it is necessary to make the outer diameter of the cylindrical protrusion 34c smaller than the inner diameter of the tube 10, so that the flow rate of the puncture repair liquid 4 is reduced. In the latter case, the flow path of the puncture repair liquid 4 is sufficient. Can be secured.

  Next, a method for recovering the puncture repair liquid using the above-described puncture repair liquid recovery apparatus will be described. First, as shown in FIG. 1, the valve core is removed from the tire valve 3 of the wheel in which the puncture repair liquid 4 is injected into the tire 1, and the tube 10 is inserted into the tire 1 through the tire valve 3. Since the tube 10 is adjusted in advance to an appropriate length, the tip of the tube 10 abuts against the inner surface of the tire, while the locking portion 11 on the tire valve side is locked to the most detailed 3d of the through hole 3a of the tire valve 3.

  Next, one end 31 of the pipe member 30 is connected to the tire valve 3, and the hose 22 of the pressurized air supply source 20 is connected to the other end 32 of the pipe member 30. Thereby, the pipe member 30 is connected between the tire valve 3 and the pressurized air supply source 20 to form a series of pressurized air supply paths. Then, the tire 1 is filled with air from the pressurized air supply source 20. Since the injection amount of the puncture repair liquid 4 is, for example, about 650 ml in the size of 215 / 60R16, the air pressure in the tire 1 is in the range of 50 kPa to 100 kPa, for example, about 80 kPa as the pressure for discharging the puncture repair liquid 4 You can do it.

  As shown in FIG. 10, after filling with air, the hose 22 of the pressurized air supply source 20 is removed from the end portion 32 of the pipe member 30, and the puncture repair liquid in the tire 1 is utilized using the action of releasing the pressure in the tire 1. 4 is recovered from the other end 32 of the pipe member 30. The puncture repair liquid 4 may be collected in a container 35 having an appropriate capacity.

  Since the pipe member 30 has flexibility, after filling with air, the pipe member 30 is bent or crushed to close the flow path of the pipe member 30, and pressurized air is supplied from the end 32 of the pipe member 30. The hose 22 of the supply source 20 is removed, and then the puncture repair liquid 4 is recovered by making the flow path of the pipe member 30 conductive. Thereby, it is possible to prevent the puncture repair liquid 4 from being scattered when the pressurized air supply source 20 is removed. However, when the pipe member 30 has a sufficient length, it takes a certain amount of time to discharge the puncture repair liquid 4, and therefore it is not always necessary to close the flow path of the pipe member 30.

  When the recovery of the puncture repair liquid 4 is almost completed, air is discharged from the end portion 32 of the pipe member 30. At this time, as shown in FIG. It should be upward. Thereby, scattering of the puncture repair liquid 4 can be suppressed.

  According to the recovery method of the puncture repair liquid described above, it is not necessary to remove the tire valve 3 when recovering the puncture repair liquid 4 in the tire 1, and the tire valve 3 is used as it is after the recovery of the puncture repair liquid 4. be able to. Further, since the tube 10 can be made as thick as possible within the range allowed by the tire valve 3, the puncture repair liquid 4 can be collected in a short time based on the pressure in the tire 1. Therefore, the recovery operation of the puncture repair liquid 4 can be performed efficiently without excising the tire valve 3.

  12 to 16 each show a puncture repair liquid recovery apparatus according to another embodiment of the present invention. Since these embodiments differ from the above-described embodiments only in the structure of the pipe member, the same components as those in FIG. 1 are denoted by the same reference numerals in FIGS. 12 to 16 and detailed descriptions thereof are omitted. To do.

  In the embodiment of FIG. 12, the pipe member 30 has a bent shape. When the puncture repair liquid 4 is collected, the end portion 32 of the pipe member 30 is directed downward. Thereby, scattering of the puncture repair liquid 4 can be prevented, and the puncture repair liquid 4 can be reliably recovered in the container 35. Thus, the bending condition of the pipe member 30 can be selected as appropriate.

  In the embodiment of FIG. 13, the pipe member 30 has a bellows portion 36 in a part in the longitudinal direction (see FIG. 14). The bellows portion 36 may be processed integrally with the pipe member 30, or the pipe member 30 may be configured by connecting separate pipes to both sides of the bellows portion 36. When the pipe member 30 is provided with the bellows portion 36 in a part in the longitudinal direction as described above, when the tire 1 is filled with air, the pipe member 30 is in a straight state and when the puncture repair liquid 4 is recovered. The end 32 of the pipe member 30 is directed downward, and when the air is discharged from the tire 1, the end 32 of the pipe member 30 is directed upward. Thereby, scattering of the puncture repair liquid 4 can be prevented, the puncture repair liquid 4 can be reliably collected in the container 35, and an optimum working state can be ensured in each process.

  In the embodiment of FIG. 15, the pipe member 30 has an on-off valve 37 in a part in the longitudinal direction. More specifically, as shown in FIGS. 16 (a) to 16 (c), an opening / closing valve 37 is disposed in a flow path connecting one end 31 and the other end 32 of the pipe member 30. The flow path of the pipe member 30 opens and closes based on the state of the opening / closing valve 37.

  In this case, first, the tube 10 is inserted into the tire 1 through the tire valve 3, and the pipe member 30 is connected between the tire valve 3 and the pressurized air supply source 20, and then shown in FIG. As described above, the tire 1 is filled with air from the pressurized air supply source 20 with the on-off valve 37 opened. Next, as shown in FIG. 16B, the hose 22 of the pressurized air supply source 20 is removed from the end 32 of the pipe member 30 with the on-off valve 37 closed. Thereafter, the puncture repair liquid 4 in the tire 1 is recovered from the other end 32 of the pipe member 30 by utilizing the action of releasing the pressure in the tire 1 by opening the on-off valve 37. Thus, when the pipe member 30 is provided with the opening / closing valve 37 in a part in the longitudinal direction, it is possible to prevent the puncture repair liquid 4 from being scattered when the pressurized air supply source 20 is removed.

  Further, in each of the above-described embodiments, the puncture repair liquid 4 is recovered from the other end 32 of the pipe member 30. As a container for recovery, in addition to a bucket, a bottle, etc., a flexible bag Can be used. And it is preferable to coagulate the puncture repair liquid 4 with a coagulant in a flexible bag.

  FIGS. 17-19 show the flexible bag which enclosed the coagulant | flocculant used by this invention. As shown in FIG. 17, the puncture repair liquid recovery apparatus according to this embodiment includes a coagulant 40 for coagulating the puncture repair liquid and a flexible bag 50 for containing the puncture repair liquid. I have.

  The coagulant 40 is not particularly limited as long as it coagulates a puncture repair liquid containing emulsion particles. For example, a coagulant described in JP 2009-41006 A can be used. This coagulant contains a mineral that causes aggregation of emulsion particles and a gelling agent.

  As said mineral, at least 1 sort (s) chosen from the group which consists of a silicate, an oxide, and carbonate can be used. For example, as the mineral, at least one selected from the group consisting of alumina, sodium silicate, magnesium silicate, aluminum silicate, montmorillonite, bentonite, and zeolite may be used.

  On the other hand, as the gelling agent, at least one selected from the group consisting of polyethylene oxide, polypropylene oxide, hydroxyethyl cellulose and their modified polymers, sodium alginate, propylene glycol alginate and dibenzylidene sorbitol may be used.

  The amount of the gelling agent is 20 to 700 parts by weight, preferably 60 to 200 parts by weight with respect to 100 parts by weight of the mineral. However, the coagulant may be, for example, a filler, an anti-aging agent, an antioxidant, a pigment (dye), a plasticizer, a thixotropic agent, and an ultraviolet absorber, in addition to minerals and gelling agents. Further, additives such as a flame retardant, a surfactant, a dispersant, a dehydrating agent, and an antistatic agent can be contained.

  On the other hand, the flexible bag 50 is formed by heat-sealing two side sheets 51 and 52 made of a laminate film 54 and one gusset 53 made of a laminate film 54. A coagulant 40 is sealed in the bag 50 in advance. Further, it is desirable that the bag 50 has a capacity of 700 ml to 2000 ml in order to accommodate the puncture repair liquid collected from inside the tire. The gusset 53 is arranged at the lower part of the bag 50. The gusset 53 is in a folded state when not in use, but may be always open. In any case, the bag 50 has a three-dimensional shape in a state where the gusset 53 is unfolded and is self-supporting.

  As shown in FIG. 18, the laminate film 54 includes an intermediate layer 54a having gas barrier properties, an inner layer 54b laminated on the inner side of the intermediate layer 54a, and an outer layer 54c laminated on the outer side of the intermediate layer 54a. . The constituent material of the intermediate layer 54a includes ethylene / vinyl alcohol copolymer (EVOH), polyamide (PA), polyvinylidene chloride (PVDC), polyvinyl alcohol (PVA), MX nylon (MXD6), and polyacrylonitrile resin (PAN). In addition to a synthetic resin having a low gas permeability such as a metal foil such as an aluminum foil can be used. On the other hand, as a constituent material of the inner layer 54b and the outer layer 54c, a synthetic resin such as polyethylene, polyester, nylon or the like can be used in order to ensure mechanical strength and weather resistance. The inner layer 54b and the outer layer 54c are preferably made of the same material, but may be made of different materials depending on the required characteristics.

  In the case of synthetic resin, the thickness of the intermediate layer 54a is preferably 5 μm to 200 μm. In the case of a metal foil such as an aluminum foil, the thickness may be 1 nm to 500 nm, preferably 5 nm to 200 nm. If the intermediate layer 54a is too thin, the gas barrier property is lowered. Conversely, if the intermediate layer 54a is too thick, the flexibility is lowered. The thickness of each of the inner layer 54b and the outer layer 54c may be 5 μm to 100 μm. If the inner layer 54b and the outer layer 54c are too thin, the durability at the time of mixing the puncture repair liquid and the coagulant is lowered, and conversely if it is too thick, the flexibility is lowered.

  Each of the inner layer 54b and the outer layer 54c may be a single layer or a plurality of layers made of different materials. In the case of a plurality of layers, the total thickness is preferably 5 μm to 100 μm.

  An opening 55 (see FIG. 19) is formed by tearing the upper end portion of the bag 50 from the cut edge 55 as a starting point. . The bag 50 is provided with a sealing band 57 along the opening 56. The structure of the sealing band 57 is not particularly limited as long as the opening 56 can be sealed. For example, the groove 57a extending along the opening 56 in one side sheet 51, In the other side sheet | seat 52, it can comprise from the protrusion 57b extended along the opening part 56, and fitting elastically with respect to the groove | channel 57a.

  When recovering the puncture repair liquid 4 using the coagulant 40 and the bag 50 described above, as shown in FIG. 19, the upper end of the bag 50 containing the coagulant 40 is opened, and the inside of the tire 1 is inserted therein. The extracted puncture repair liquid 4 is introduced. Next, after the opening portion 56 of the bag 50 is sealed with the sealing band 57, the puncture repair liquid 4 and the coagulant 40 are mixed by holding the flexible bag 50, thereby puncturing the bag 50. The repair liquid 4 is solidified. As a result, the used puncture repair liquid 4 can be easily and quickly discarded as combustible waste together with the bag 50.

  In the puncture repair liquid recovery method described above, since the sealing band 57 is provided in the opening 56 of the flexible bag 50, the puncture repair liquid 4 is reliably prevented from overflowing when the bag 50 is held. can do.

  The flexible bag 50 is made of a laminate film 54 including an intermediate layer 54a having a gas barrier property. Since the coagulant 40 is sealed in the bag 50 in advance, the contained coagulant 40 is contained in the air. The quality can be maintained for a long time without being exposed.

  Furthermore, since the bag 50 has a gusset 53 at the lower portion and is a self-supporting structure, it is not necessary to support the bag 50 when the puncture repair liquid 4 is extracted from the tire 1. Therefore, even if the operation of the valve or the like is required when extracting the puncture repair liquid 4 from the tire 1, there is an advantage that all the collection operations can be performed by one person.

  In the embodiment described above, the case where the flexible bag is made of a laminate film including an intermediate layer having a gas barrier property and the coagulant is enclosed in advance in the bag has been described. A soft plastic bag or the like may be used as the flexible bag, and the coagulant may be enclosed in another package having gas barrier properties. In that case, a coagulant may be introduced into the flexible bag together with the puncture repair liquid, and the puncture repair liquid and the coagulant may be mixed.

DESCRIPTION OF SYMBOLS 1 Pneumatic tire 2 Wheel 3 Tire valve 4 Puncture repair liquid 10 Tube 11 Locking part 12 Scale 20 Pressurized air supply source 30 Pipe member 31 One end part 32 Other end part 33 Attachment 36 Bellows part 37 On-off valve

Claims (22)

  A tube that is inserted into the tire from a tire valve attached to the wheel and has a length that reaches at least the inner surface of the tire, and one end connected to the tire valve while the other connected to a pressurized air supply source A puncture repair liquid recovery device including a pipe member, and a valve core is removed from a tire tire valve of a wheel in which the puncture repair liquid is injected into the tire, and the tube is inserted into the tire through the tire valve. And connecting one end of the pipe member to the tire valve, connecting the pressurized air supply source to the other end of the pipe member, and filling the tire with air from the pressurized air supply source, The pressurized air supply source is removed from the other end of the pipe member, and the puncture repair liquid in the tire is removed from the other end of the pipe member by utilizing the action of releasing the pressure in the tire. Method for recovering puncture repair liquid, characterized in that it et recovered.   The pipe member is flexible, and after the tire is filled with air from the pressurized air supply source, the compressed air is supplied from the other end of the pipe member in a state where the flow path of the pipe member is closed. 2. The puncture repair according to claim 1, wherein the puncture repair liquid in the tire is collected from the other end of the pipe member by removing the supply source and then conducting the flow path of the pipe member. Liquid recovery method.   The other end of the pipe member is attached to an attachment having a configuration that is detachable with respect to the pressurized air supply source and that opens in a direction intersecting the axial direction of the pipe member, The method for recovering puncture repair liquid according to claim 1 or 2, wherein the puncture repair liquid is recovered with the opening of the attachment facing downward.   3. The puncture according to claim 1, wherein the pipe member has a bent shape or a curved shape, and the puncture repair liquid is collected with the other end portion of the pipe member facing downward. How to collect repair liquid.   The pipe member has a bellows part in a part in the longitudinal direction, and the puncture repair liquid is collected in a state where the other end part of the pipe member faces downward. The recovery method of the puncture repair liquid as described.   The pipe member has an opening / closing valve in a part in the longitudinal direction, and the pipe member is filled with air from a pressurized air supply source with the opening / closing valve opened, and then the opening / closing valve is closed. The puncture repair liquid in the tire is recovered from the other end portion of the pipe member by removing the pressurized air supply source from the other end portion of the tire and then opening the on-off valve. The recovery method of the puncture repair liquid as described.   The tube is made thinner than the finest detail of the through hole of the tire valve, and a locking portion thicker than the finest detail of the through hole of the tire valve is provided at the end of the tube on the tire valve side. The recovery method of the puncture repair liquid according to any one of claims 1 to 6.   The puncture repair liquid recovery method according to claim 1, wherein the tube and the pipe member are configured to be connectable to each other.   The recovery of the puncture repair liquid according to any one of claims 1 to 8, wherein the tube includes a scale indicating a cutting length, and the tube is cut according to a tire size based on the scale. Method.   The puncture repair liquid recovery method according to claim 9, wherein the scale is directly displayed on the tube.   The puncture repair liquid recovery device includes a coagulant for coagulating the puncture repair liquid and a flexible bag for containing the puncture repair liquid, and the puncture repair liquid extracted from the tire is The puncture repair liquid and the coagulant are mixed in the bag, and the puncture repair liquid is recovered in a coagulated state. Recovery method of puncture repair liquid as described in 1. A tube that is inserted into the tire from a tire valve attached to the wheel and has a length that reaches at least the inner surface of the tire, and one end connected to the tire valve while the other connected to a pressurized air supply source A puncture repair liquid recovery apparatus comprising: a pipe member configured to be connected to the tube and the pipe member .   The said pipe member has flexibility, The recovery apparatus of the puncture repair liquid of Claim 12 characterized by the above-mentioned. A tube that is inserted into the tire from a tire valve attached to the wheel and has a length that reaches at least the inner surface of the tire, and one end connected to the tire valve while the other connected to a pressurized air supply source A pipe member, and an attachment connected to the other end of the pipe member, the attachment being detachable from the pressurized air supply source, and the axial direction of the pipe member puncture repair liquid recovery apparatus characterized in that it has an opening which opens toward a direction intersecting.   The puncture repair liquid recovery apparatus according to claim 12 or 13, wherein the pipe member has a bent shape or a curved shape.   The puncture repair liquid recovery device according to claim 12 or 13, wherein the pipe member has a bellows portion in a part in a longitudinal direction.   The puncture repair liquid recovery apparatus according to claim 12, wherein the pipe member has an on-off valve in a part in a longitudinal direction.   The tube is made thinner than the finest detail of the through hole of the tire valve, and a locking portion thicker than the finest detail of the through hole of the tire valve is provided at the end of the tube on the tire valve side. The puncture repair liquid recovery device according to any one of claims 12 to 17. The puncture repair liquid recovery apparatus according to claim 14, wherein the pipe member has flexibility .   The puncture repair liquid recovery apparatus according to any one of claims 12 to 19, wherein the tube includes a scale indicating a cutting length.   The puncture repair liquid recovery device according to claim 20, wherein the scale is directly displayed on the tube.   The recovery of the puncture repair liquid according to any one of claims 12 to 21, further comprising: a coagulant for coagulating the puncture repair liquid; and a flexible bag for containing the puncture repair liquid. apparatus.

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