Tire repair kit

Abstract

We provide a tire repair kit that can efficiently repair punctures in objects. [Solution] This is a tire repair kit 1 for repairing a puncture in an object T. It includes a container 2 containing tire repair fluid R, a compressed air source 3 for supplying compressed air A, and a mixing device 4 attached to the container 2 for generating a mixture of tire repair fluid R and compressed air A. The mixing device 4 includes a mixing chamber 5 for generating the mixture, a first inlet passage 6 connected to the compressed air source 3, a second inlet passage 7 for supplying tire repair fluid R from the container 2 to the mixing chamber 5, and an outlet passage 8 for discharging the mixture from the mixing chamber 5. The first inlet passage 6 includes a first opening 6a for supplying compressed air A toward the container 2 and a second opening 6b for supplying compressed air A toward at least one of the mixing chamber 5 and the second inlet passage 7.

Description

[Technical Field]

[0001] This invention relates to a puncture repair kit for repairing a puncture in an object. [Background technology]

[0002] Conventionally, tire repair kits for repairing objects such as punctured tires are known. For example, Patent Document 1 below proposes a tire repair kit that can shorten the compressed air supply time by branching and distributing compressed air from a compressor, thereby suppressing the solidification of the tire repair fluid in the supply path. [Prior art documents] [Patent Documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2023-066212 [Overview of the project] [Problems that the invention aims to solve]

[0004] However, the tire repair kit described in Patent Document 1 sometimes causes the repair fluid to solidify in parts because the compressed air and repair fluid are not uniformly mixed when discharged. Therefore, there was a need for further improvements in terms of the efficiency of tire repair.

[0005] This invention was devised in view of the above-described circumstances, and its main objective is to provide a puncture repair kit that can efficiently repair punctures in objects. [Means for solving the problem]

[0006] The present invention relates to a tire repair kit for repairing a puncture in an object, comprising: a container containing a tire repair fluid; a compressed air source for supplying compressed air; and a mixing device attached to the container for generating a mixture of the tire repair fluid and the compressed air, wherein the mixing device comprises: a mixing chamber for generating the mixture; a first inlet passage connected to the compressed air source; a second inlet passage for supplying the tire repair fluid from the container to the mixing chamber; and an outlet passage for discharging the mixture from the mixing chamber, wherein the first inlet passage comprises: a first opening for supplying the compressed air toward the container; and a second opening for supplying the compressed air toward at least one of the mixing chamber and the second inlet passage. [Effects of the Invention]

[0007] The tire repair kit of the present invention, having the above-described configuration, can efficiently repair punctures in objects. [Brief explanation of the drawing]

[0008] [Figure 1] This is a schematic cross-sectional view showing one embodiment of the tire repair kit of the present invention. [Figure 2] This is a schematic cross-sectional view showing a tire repair kit of another embodiment. [Figure 3] Figure 1 is a plan view of the mixing chamber. [Figure 4] Figure 1 is a schematic perspective view showing the first inlet channel. [Figure 5] This is a perspective view of a second embodiment of the first inlet channel. [Figure 6] This is a perspective view of the third embodiment of the first inlet channel. [Modes for carrying out the invention]

[0009] One embodiment of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a cross-sectional view schematically showing the puncture repair kit 1 of the present embodiment. As shown in FIG. 1, the puncture repair kit 1 is suitably used for filling an object T such as a punctured tire with a puncture repair liquid R and compressed air A.

[0010] The puncture repair kit 1 of the present embodiment includes a container 2 in which a puncture repair liquid R is stored, and a compressed air source 3 for supplying compressed air A. The container 2 has, for example, a mouth portion 2a for storing the puncture repair liquid R inside the container 2. It is desirable to store the puncture repair liquid R in the container 2 from the mouth portion 2a. The mouth portion 2a of the present embodiment has a film (not shown) for hermetically holding the stored puncture repair liquid R. Such a container 2 is suitable for storing the puncture repair liquid R for a long period of time.

[0011] [[ID=�]] The compressed air source 3 is, for example, a compressor. The compressed air source 3 generates compressed air A by being supplied with electricity through a cord (not shown) connected to an external power source, for example. Such a compressed air source 3 can supply a large amount of compressed air A in a small size and has excellent storage properties when not in use.

[0012] The puncture repair kit 1 of the present embodiment includes a mixing device 4 attached to the container 2 for generating a mixture of the puncture repair liquid R and the compressed air A. The mixing device 4 of the present embodiment includes a mixing chamber 5 for generating a mixture of the puncture repair liquid R and the compressed air A. The mixing chamber 5 is, for example, a space surrounded by a top surface 5a located upward during puncture repair, a floor surface 5b located downward, and an inner surface 5c and an outer surface 5d connecting the top surface 5a and the floor surface 5b. Such a mixing device 4 can uniformly mix the puncture repair liquid R and the compressed air A in a wide space.

[0013] The mixing device 4 of the present embodiment includes a first inlet flow path 6 connected to the compressed air source 3 and a second inlet flow path 7 for supplying the puncture repair liquid R from the container 2 to the mixing chamber 5. The first inlet flow path 6 of the present embodiment includes a first opening 6a for supplying compressed air A toward the container 2.

[0014] Such a mixing device 4 increases the internal pressure in the container 2 by the compressed air A supplied to the container 2, and even when the viscosity of the puncture repair liquid R is relatively high, the puncture repair liquid R can be smoothly supplied from the second inlet flow path 7 by this internal pressure. Further, since the supply speed of the puncture repair liquid R is high in such a mixing device 4, the puncture repair liquid R and the compressed air A can be uniformly mixed in the mixing chamber 5 without being aerosolized. Here, the non-aerosolized mixture is a mixture in which the particle diameter of the puncture repair liquid R exceeds 500 μm.

[0015] FIG. 2 is a cross-sectional view schematically showing a puncture repair kit 1 of another embodiment. As shown in FIGS. 1 and 2, the first inlet flow path 6 of the present embodiment includes a second opening 6b for supplying the compressed air A toward at least one of the mixing chamber 5 and the second inlet flow path 7. In FIG. 1, a second opening 6b for supplying the compressed air A toward the mixing chamber 5 is illustrated. In FIG. 2, a second opening 6b for supplying the compressed air A toward the second inlet flow path 7 is illustrated. Such a mixing device 4 can supply the compressed air A to the inside of at least one of the mixing chamber 5 and the second inlet flow path 7 without inhibiting the flow of the puncture repair liquid R in the second inlet flow path 7, and can efficiently mix the puncture repair liquid R and the compressed air A.

[0016] The mixing device 4 of the present embodiment includes an outlet flow path 8 for discharging the mixture of the puncture repair liquid R and the compressed air A from the mixing chamber 5. Such a mixing device 4 can efficiently discharge the mixture of the puncture repair liquid R and the compressed air A. Therefore, the puncture repair kit 1 of the present embodiment can efficiently repair the puncture of the object T.

[0017] In a more preferred aspect, the puncture repair liquid R has a viscosity of 100 mPa·s or less at 25°C. Such a puncture repair liquid R can be smoothly supplied from the second inlet flow path 7 to the mixing chamber 5 during use in a normal temperature environment and can be efficiently mixed with the compressed air A.

[0018] In this specification, the viscosity of the tire repair fluid R is the value measured using a Type B viscometer in accordance with the provisions of JIS K7117-1:1999, under the conditions of spindle LV-4 and rotation speed of 10 rpm.

[0019] The tire repair fluid R preferably has a viscosity of 400 mPa·s or less at -30°C. When used in a low-temperature environment, such tire repair fluid R is supplied from the second inlet passage 7 to the mixing chamber 5 by compressed air A supplied from the first opening 6a, and can be mixed with the compressed air A and discharged to the punctured object T.

[0020] The tire repair fluid R preferably contains at least glycol. Examples of glycols include ethylene glycol, 1,3-propanediol, and propylene glycol. Such a tire repair fluid R is suitable for efficiently repairing the punctured area even when a small amount is injected as a mixture into the punctured object T.

[0021] The mixing chamber 5 is formed, for example, by combining a first member 5A and a second member 5B. The first member 5A is connected to, for example, an outlet channel 8, and a first inlet channel 6 passes through it. The second member 5B is connected to, for example, the first inlet channel 6, and a first opening 6a and a second inlet channel 7 are formed therein. Such a mixing chamber 5 can simplify the manufacturing process and help to reduce manufacturing costs. However, the mixing chamber 5 is not limited to this embodiment and may, for example, be integrally molded.

[0022] The first member 5A is preferably formed in the shape of a bottomed cylinder. In this embodiment, the first member 5A constitutes the floor surface 5b of the mixing chamber 5. Such a mixing chamber 5 can secure a stable space with a simple structure, which helps to reduce manufacturing costs.

[0023] The first component 5A has, for example, a mounting portion 5e that is attached to the mouth 2a of the container 2. In this embodiment, the mounting portion 5e is screw-connected to the mouth 2a for use during tire repair. Such a mixing device 4 is easy to attach to the container 2 and can prevent it from detaching from the container 2 even when compressed air A pressure is applied.

[0024] The second member 5B is preferably formed in a bottomed cylindrical shape. The second member 5B is located, for example, inside the first member 5A. In this embodiment, the second member 5B constitutes the top surface 5a and the outer surface 5d of the mixing chamber 5. Such a mixing chamber 5 can secure a stable space with a simple structure, which helps to reduce manufacturing costs.

[0025] The first member 5A and the second member 5B are integrally joined by, for example, a locking mechanism (not shown). Such a mixing chamber 5 can improve stability during use by preventing the first member 5A and the second member 5B from disassembling due to the pressure of compressed air A. Note that the joining method of the first member 5A and the second member 5B is not limited to this method; for example, they may be screw-jointed or press-fitted.

[0026] The outer diameter of the second member 5B is preferably larger than the inner diameter of the opening 2a of the container 2. Since such a second member 5B can be positioned by contacting the opening 2a, there is no risk of it coming off the first member 5A when the pressure of compressed air A is applied.

[0027] Figure 3 is a plan view of the mixing chamber 5 in Figure 1. As shown in Figures 1 to 3, the second member 5B has at least one, and in this embodiment four, breaking sections 9 on the side of the top surface 5a of the mixing chamber 5 that is opposite to the mixing chamber 5, for breaking the film (not shown) provided at the mouth 2a of the container 2. Preferably, at least one breaking section 9 is provided between the first opening 6a and the second inlet passage 7. In this embodiment, the breaking sections 9 are provided around the first opening 6a. By attaching such a mixing device 4 to the container 2, the film of the container 2 can be broken and the tire repair fluid R can be supplied to the mixing chamber 5, and mixing with compressed air A in the mixing chamber 5 can be performed smoothly.

[0028] The first inlet passage 6, in its use state during tire repair, preferably includes a horizontal portion 6c extending horizontally and a vertical portion 6d extending vertically. Here, the horizontal portion 6c extending horizontally is the part that circulates compressed air A parallel to the support surface, such as the ground, that supports the tire repair kit 1 in use. The vertical portion 6d extending vertically is the part that circulates compressed air A in a direction perpendicular to the horizontal portion 6c.

[0029] The vertical portion 6d includes, for example, a ball valve 10 to prevent the tire repair fluid R from flowing back into the compressed air source 3. Figure 1 shows the ball valve 10 when compressed air A is being supplied. The ball valve 10 when the supply of compressed air A is stopped is shown by a dashed line in Figure 1. This first inlet passage 6 prevents the tire repair fluid R from flowing back into the compressed air source 3, even if some tire repair fluid R remains inside the container 2 when the supply of compressed air A from the compressed air source 3 is stopped, thereby preventing damage to the compressed air source 3.

[0030] The mixing chamber 5 is preferably formed around the vertical portion 6d of the first inlet passage 6. For example, the mixing chamber 5 is formed around the ball valve 10. In this embodiment, the vertical portion 6d of the first inlet passage 6 constitutes the inner surface 5c of the mixing chamber 5. Such a mixing chamber 5 can secure a large space and efficiently and uniformly mix the tire repair fluid R and compressed air A. Furthermore, since the mixing chamber 5 in this embodiment is composed of a first member 5A and a second member 5B, the assembly of the ball valve 10 can be easily performed.

[0031] The second inlet passage 7 extends, for example, along the vertical portion 6d of the first inlet passage 6. Such a second inlet passage 7 can smoothly supply the tire repair fluid R to the mixing chamber 5 by compressed air A supplied from the vertical portion 6d and gravity.

[0032] Figure 4 is a schematic perspective view showing the first inlet flow path 6 of Figure 1. As shown in Figures 1 to 4, the first opening 6a in this embodiment is formed at the upper end of the vertical portion 6d in use. Such a first opening 6a can efficiently supply compressed air A into the container 2.

[0033] The first opening 6a includes at least one circular opening, in this embodiment. Such a first opening 6a is easy to manufacture and helps to efficiently supply compressed air A into the container 2. The first opening 6a is not limited to this embodiment and may include, for example, multiple openings, slit-shaped openings, or polygonal openings.

[0034] The opening area S1 of the first opening 6a is preferably 1 mm 2 That concludes the explanation. The opening area S1 of the first opening 6a is 1 mm². 2 This ensures that a sufficient amount of compressed air A is supplied to the container 2, and that the tire repair fluid R is reliably supplied even in low-temperature environments. From this perspective, the opening area S1 of the first opening 6a is more preferably 5 mm 2 The above, and more preferably 15 mm2 The above is the case.

[0035] Here, the opening area S1 of the first opening 6a is the area on the upper end surface of the second member 5B, and when it includes a plurality of openings, it is obtained as the total of those areas.

[0036] The opening area S1 of the first opening 6a is preferably 700 mm 2 or less. When the opening area S1 of the first opening 6a is 700 mm 2 or less, the flow velocity of the compressed air A supplied to the container 2 can be kept at a certain level or higher, and the compressed air A can be supplied to the depth of the container 2 even in a low-temperature environment. From this perspective, the opening area S1 of the first opening 6a is more preferably 200 mm 2 or less, and even more preferably 40 mm 2 or less.

[0037] From these, the opening area S1 of the first opening 6a is preferably 1 to 700 mm 2 and more preferably 5 to 200 mm 2 and even more preferably 15 to 40 mm 2 It should be noted that the combination of the upper limit value and the lower limit value of these numerical ranges can be arbitrarily selected.

[0038] The second opening 6b of the present embodiment is formed on the side surface of the vertical portion 6d. Such a second opening 6b can efficiently supply the compressed air A to at least one of the mixing chamber 5 formed around the vertical portion 6d and the second inlet flow path 7 extending along the vertical portion 6d.

[0039] The second opening 6b includes at least one, in this embodiment, one circular opening. Such a second opening 6b is easy to process and helps to efficiently supply the compressed air A to at least one of the mixing chamber 5 and the second inlet flow path 7. The second opening 6b is not limited to such a mode, and for example, it may include a plurality of openings.

[0040] The opening area S2 of the second opening 6b is preferably 0.1 mm 2 That concludes the explanation. The opening area S2 of the second opening 6b is 0.1 mm². 2 This ensures that compressed air A is reliably supplied directly to at least one of the mixing chamber 5 and the second inlet passage 7, which helps in uniform mixing in the mixing chamber 5. From this perspective, the opening area S2 of the second opening 6b is more preferably 1 mm 2 The above, and more preferably 2 mm 2 That's all.

[0041] Here, the opening area S2 of the second opening 6b is the area of ​​the outer circumferential surface of the vertical portion 6d or the end face on the second inlet channel 7 side, and when it includes multiple openings, it is calculated as the sum of their areas.

[0042] The opening area S2 of the second opening 6b is preferably 700 mm 2 The following applies: The opening area S2 of the second opening 6b is 700 mm². 2 The following conditions ensure that a sufficient amount of compressed air A is supplied to container 2, and that the tire repair fluid R is reliably supplied even in low-temperature environments. From this perspective, the opening area S2 of the second opening 6b is more preferably 200 mm². 2 The following, and more preferably 11 mm 2 The following applies:

[0043] Based on these considerations, the opening area S2 of the second opening 6b is preferably 0.1 to 700 mm². 2 And more preferably, 1 to 200 mm 2 And more preferably, 2 to 11 mm 2 The combination of the upper and lower limits of these numerical ranges can be arbitrarily selected.

[0044] The opening area S2 of the second opening 6b is preferably 1% or more of the opening area S1 of the first opening 6a. Having the opening area S2 of the second opening 6b be 1% or more of the opening area S1 of the first opening 6a ensures a reliable supply of compressed air A directly to at least one of the mixing chamber 5 and the second inlet passage 7, contributing to uniform mixing in the mixing chamber 5. From this viewpoint, the opening area S2 of the second opening 6b is more preferably 5% or more of the opening area S1 of the first opening 6a, and even more preferably 10% or more.

[0045] The opening area S2 of the second opening 6b is preferably 500% or less of the opening area S1 of the first opening 6a. By having the opening area S2 of the second opening 6b be 500% or less of the opening area S1 of the first opening 6a, a sufficient amount of compressed air A can be supplied to the container 2, and the puncture repair fluid R can be reliably supplied even in low-temperature environments. From this viewpoint, the opening area S2 of the second opening 6b is more preferably 200% or less of the opening area S1 of the first opening 6a, and even more preferably 50% or less.

[0046] Based on these considerations, the opening area S2 of the second opening 6b is preferably 1% to 500% of the opening area S1 of the first opening 6a, more preferably 5% to 200%, and even more preferably 10% to 50%. The combination of the upper and lower limits within these numerical ranges can be arbitrarily selected.

[0047] Figure 5 is a perspective view showing a second embodiment of the first inlet channel 6. As shown in Figure 5, the second opening 6b of the first inlet channel 6 may include, for example, a polygonal opening. The second opening 6b of the second embodiment includes a rectangular opening. Such a second opening 6b can adopt a shape that is appropriate to the shape and size of the mixing chamber 5, and helps in uniform mixing in the mixing chamber 5.

[0048] Figure 6 is a perspective view showing a third embodiment of the first inlet passage 6. As shown in Figure 6, the second opening 6b of the first inlet passage 6 may communicate with, for example, the first opening 6a. In this case, the opening area of ​​the opening is determined based on the position of the opening, with the virtual outer end shown by the dashed line in Figure 6 as the boundary. Such a second opening 6b is suitable for supplying a large amount of compressed air A to the mixing chamber 5 and helps in uniform mixing in the mixing chamber 5. The first inlet passage 6 of the third embodiment may be combined with, for example, the second member 5B in Figure 2 to form the second opening 6b in Figure 2.

[0049] As shown in Figures 1 to 3, the second inlet channel 7 of this embodiment includes a second inlet opening 7a that opens into the mixing chamber 5. The second inlet opening 7a includes at least one, and in this embodiment, three slit-shaped openings. Such a second inlet opening 7a promotes uniform mixing in the mixing chamber 5 by restricting the supply of puncture repair fluid R to the mixing chamber 5, and ensures reliable supply of puncture repair fluid R even in low-temperature environments. The second inlet opening 7a is not limited to this configuration and may be, for example, a circular opening, a rectangular opening, or a single elongated opening.

[0050] It is preferable that the second inlet opening 7a and the second opening 6b are formed on the same side of the vertical portion 6d in a plan view. Such a mixing device 4 can promote uniform mixing in the mixing chamber 5 and suppress the partial solidification of the tire repair fluid R inside the outlet passage 8.

[0051] The outlet channel 8 of this embodiment includes an outlet opening 8a that opens into the mixing chamber 5. Preferably, the outlet opening 8a and the second opening 6b are formed on opposite sides of the vertical portion 6d in a plan view. Such an outlet opening 8a helps to promote uniform mixing in the mixing chamber 5 and to suppress the partial solidification of the tire repair fluid R inside the outlet channel 8.

[0052] Although particularly preferred embodiments of the present invention have been described in detail above, the present invention is not limited to the embodiments described above and can be implemented in various modified forms.

[0053] [Note] The present invention is as follows:

[0054] [Invention 1] A tire repair kit for repairing a puncture in an object, A container holding tire repair fluid, A compressed air source for supplying compressed air, The container is equipped with a mixing device for producing a mixture of the tire repair fluid and the compressed air, The mixing apparatus is A mixing chamber for producing the aforementioned mixture, A first inlet passage connected to the compressed air source, A second inlet channel for supplying the tire repair fluid from the container to the mixing chamber, The mixing chamber includes an outlet channel for discharging the mixture from the mixing chamber, The aforementioned first inlet channel is A first opening for supplying the compressed air toward the container, Includes a second opening for supplying the compressed air toward at least one of the mixing chamber and the second inlet passage, Tire puncture repair kit.

[0055] [Invention 2] The first inlet passage includes a horizontal portion extending horizontally during tire repair and a vertical portion extending vertically. The puncture repair kit according to the present invention 1, wherein the first opening is formed at the upper end of the vertical portion.

[0056] [Invention 3] The puncture repair kit according to the present invention, wherein the second opening is formed on the side surface of the vertical portion.

[0057] [4th Invention] The puncture repair kit according to the present invention 2 or 3, wherein the mixing chamber is formed around the vertical portion.

[0058] [5th ​​Invention] The puncture repair kit according to any one of the present invention 2 to 4, wherein the second inlet channel extends along the vertical portion.

[0059] [Invention 6] The outlet passage includes an outlet opening that opens into the mixing chamber, A tire repair kit according to any one of claims 2 to 5 of the present invention, wherein the outlet opening and the second opening are formed on opposite sides of the vertical portion in a plan view.

[0060] [7th Invention] The second inlet channel includes a second inlet opening that opens into the mixing chamber. A tire repair kit according to any one of claims 2 to 6 of the present invention, wherein the second inlet opening and the second opening are formed on the same side of the vertical portion in a plan view.

[0061] [8th Invention] The puncture repair kit according to the present invention, wherein the second inlet opening includes at least one slit-shaped opening.

[0062] [Invention 9] The puncture repair kit according to any one of inventions 2 to 8, wherein the vertical portion has a ball valve for preventing the puncture repair fluid from flowing back into the compressed air source.

[0063] [Invention 10] A tire repair kit according to any one of inventions 1 to 9, wherein the opening area of ​​the second opening is 5% to 200% of the opening area of ​​the first opening.

[0064] [Invention 11] The puncture repair fluid has a viscosity of 100 mPa·s or less at 25°C and a viscosity of 400 mPa·s or less at -30°C, as described in any one of invention 1 to 10. [Explanation of Symbols]

[0065] 1. Tire repair kit 2 containers 3. Compressed air source 4 Mixing device 5 Mixing chamber 6 1st inlet channel 6a 1st opening 6b 2nd opening 7 Second inlet channel 8 Outlet channel

Claims

1. A tire repair kit for repairing a puncture in an object, A container holding tire repair fluid, A compressed air source for supplying compressed air, The container is equipped with a mixing device for producing a mixture of the tire repair fluid and the compressed air, The mixing apparatus is A mixing chamber for producing the aforementioned mixture, A first inlet passage connected to the compressed air source, A second inlet passage for supplying the tire repair fluid from the container to the mixing chamber, The mixing chamber includes an outlet channel for discharging the mixture from the mixing chamber, The first inlet channel is, A first opening for supplying the compressed air toward the container, It includes a second opening for supplying the compressed air toward at least one of the mixing chamber and the second inlet passage, Tire puncture repair kit.

2. The first inlet passage includes a horizontal portion extending horizontally during tire repair and a vertical portion extending vertically. The puncture repair kit according to claim 1, wherein the first opening is formed at the upper end of the vertical portion.

3. The puncture repair kit according to claim 2, wherein the second opening is formed on the side surface of the vertical portion.

4. The puncture repair kit according to claim 2 or 3, wherein the mixing chamber is formed around the vertical portion.

5. The tire repair kit according to claim 2 or 3, wherein the second inlet channel extends along the vertical portion.

6. The outlet passage includes an outlet opening that opens into the mixing chamber, The tire repair kit according to claim 2 or 3, wherein the outlet opening and the second opening are formed on opposite sides of the vertical portion in a plan view.

7. The second inlet channel includes a second inlet opening that opens into the mixing chamber. The tire repair kit according to claim 2 or 3, wherein the second inlet opening and the second opening are formed on the same side of the vertical portion in a plan view.

8. The tire repair kit according to claim 7, wherein the second inlet opening includes at least one slit-shaped opening.

9. The puncture repair kit according to claim 2 or 3, wherein the vertical portion has a ball valve for preventing the puncture repair fluid from flowing back into the compressed air source.

10. The tire repair kit according to any one of claims 1 to 3, wherein the opening area of ​​the second opening is 5% to 200% of the opening area of ​​the first opening.

11. The tire repair kit according to any one of claims 1 to 3, wherein the tire repair fluid has a viscosity of 100 mPa·s or less at 25°C and a viscosity of 400 mPa·s or less at -30°C.

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