Mixer, bottle unit and puncture repair kit

Abstract

To provide a mixer, bottle unit and puncture repair kit capable of efficiently repair puncture of a target object.SOLUTION: Provided is a mixer 4 for mixing puncture repair liquid R and compressed air A. The mixer 4 has a mixing chamber 8 that contains a space for mixing puncture repair liquid R and compressed air A, a first inlet 9 for supplying compressed air A to the mixing chamber 8, a second inlet 10 for supplying the puncture repair liquid R to the mixing chamber 8, and an outlet 11 for discharging a mixture of the puncture repair liquid R and the compressed air A from the mixing chamber 8. The second inlet 10 has at least one slit-shaped flow path 16 with a cross-section in the longitudinal direction.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a mixing device for mixing a tire repair fluid with compressed air, a bottle unit including the mixing device, and a tire repair kit including the bottle unit. [Background technology]

[0002] Conventionally, there are known puncture repair kits for repairing objects such as punctured tires. For example, the following Patent Document 1 proposes a puncture repair kit for repairing a puncture by sequentially injecting a puncture repair fluid and compressed air into a punctured object using compressed air from a compressor. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2017-056662 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, since the puncture repair kit in Patent Document 1 involves sequentially injecting puncture repair fluid and compressed air into the punctured object, the time required to repair the puncture tends to be long, and there has been a demand for further improvements in the efficiency of puncture repair.

[0005] The present invention has been devised in view of the above circumstances, and its main object is to provide a mixing device, a bottle unit, and a puncture repair kit that are capable of efficiently repairing a puncture in an object. [Means for solving the problem]

[0006] The present invention is a mixing device for mixing tire repair fluid and compressed air, comprising a mixing chamber having a space for mixing the tire repair fluid and the compressed air, a first inlet for supplying the compressed air to the mixing chamber, a second inlet for supplying the tire repair fluid to the mixing chamber, and an outlet for discharging the mixture of the tire repair fluid and the compressed air from the mixing chamber, wherein the second inlet has at least one slit-shaped flow path having a longitudinal cross-section. Effect of the Invention

[0007] The mixing device of the present invention, having the above-mentioned configuration, can efficiently repair punctures in objects. [Brief description of the drawings]

[0008] [Figure 1] 1 is a cross-sectional view showing one embodiment of a puncture repair kit of the present invention. [Diagram 2] FIG. [Diagram 3] FIG. 4 is a plan view of a mixing device according to a second embodiment. [Figure 4] FIG. 11 is a partially cutaway perspective view of a mixing device according to a third embodiment. [Diagram 5] FIG. 13 is a plan view of a mixing device according to a fourth embodiment. [Figure 6] FIG. 13 is a plan view of a mixing device according to a fifth embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

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

[0010] The puncture repair kit 1 of this embodiment includes a bottle unit 2 for discharging a mixture of the puncture repair fluid R and the compressed air A to an object T, and a compressor 3 for supplying the compressed air A. The bottle unit 2 of this embodiment includes a mixing device 4 for mixing the puncture repair fluid R and the compressed air A, and a container 5 for storing the puncture repair fluid R. The mixing device 4 includes, for example, an adapter member 6 attached to the container 5, and a cap member 7 attached to the adapter member 6.

[0011] Such a bottle unit 2 allows easy attachment of the mixing device 4 and the container 5, which helps to shorten the time required to repair a puncture. Furthermore, the mixing device 4 can pre-mix the tire repair fluid R and the compressed air A before filling the target object T, thereby shortening the time required to repair a puncture. Note that the mixing device 4 is not limited to such an embodiment, and may be, for example, an integrally molded product in which the adapter member 6 and the cap member 7 are integrated.

[0012] The container 5 has, for example, an opening 5a for storing the tire repair fluid R inside the container 5. The container 5 stores the tire repair fluid R inside the container 5, for example, through the opening 5a. The opening 5a has, for example, a film (not shown) for keeping the stored tire repair fluid R airtight.

[0013] The mixing device 4 is preferably attached to the mouth portion 5a of the container 5. Such a container 5 does not require a separate outlet for taking out the tire repair fluid R, which helps reduce manufacturing costs.

[0014] The mixing device 4 of this embodiment includes a mixing chamber 8 having a space for mixing the tire repair fluid R and the compressed air A. When the mixing device 4 is attached to the container 5 and used to repair a tire puncture, the mixing chamber 8 includes a top surface 8a located above, a floor surface 8b located below, and a side surface 8c connecting the top surface 8a and the floor surface 8b. The mixing chamber 8 has, for example, a cylindrical space in which the top surface 8a and the floor surface 8b are circular.

[0015] The mixing device 4 of this embodiment includes a first inlet 9 for supplying compressed air A to the mixing chamber 8, and a second inlet 10 for supplying tire repair fluid R to the mixing chamber 8. The first inlet 9 communicates with, for example, a compressor 3 which is a compressed air source. The second inlet 10 communicates with, for example, a container 5 which contains the tire repair fluid R.

[0016] In this type of mixing device 4, the mixing chamber 8 is repeatedly switched between positive and negative pressure states due to the pulsation of the compressed air A supplied from the compressor 3, so that the tire repair fluid R in the container 5 can be dripped into the mixing chamber 8 from the second inlet 10 to produce a mixture.

[0017] The mixer 4 desirably has an outlet 11 for discharging the mixture of the tire repair fluid R and the compressed air A from the mixing chamber 8. Such a mixer 4 can supply the tire repair fluid R and the compressed air A as a mixture to the target T, and can shorten the time required for tire repair compared to the case where the tire repair fluid R and the compressed air A are supplied sequentially.

[0018] The first inlet 9 and the outlet 11 are provided, for example, in the cap member 7. In this embodiment, the first inlet 9 and the outlet 11 are provided in the floor surface 8b. The second inlet 10 is provided, for example, in the partition wall 6a of the adapter member 6. In this embodiment, the second inlet 10 is provided in the top surface 8a.

[0019] This type of mixing device 4 discharges a mixture of tire repair fluid R and compressed air A dripped from the second inlet 10 located above through the outlet 11 located below, thereby preventing the dripped tire repair fluid R from stagnating and enabling the mixture to be produced efficiently.

[0020] The mixing chamber 8 may have, for example, a protruding portion 12 protruding from the top surface 8a toward the inside of the mixing chamber 8. For example, a cone shape having a most protruding apex is preferably adopted as the protruding portion 12. Such a protruding portion 12 can give directionality to the flow inside the mixing chamber 8, and is useful for efficiently discharging the mixture of the tire repair fluid R and the compressed air A.

[0021] The mixing chamber 8 may have a plurality of hemispherical recesses 13 formed in at least one of the top surface 8a, the floor surface 8b, and the side surface 8c. Such a plurality of recesses 13 is useful for smoothing the flow and shortening the residence time of the mixture in the mixing chamber 8.

[0022] The adapter member 6 is, for example, screwed to both the mouth 5a of the container 5 and the cap member 7. The gap between the adapter member 6 and the mouth 5a is desirably sealed by a seal member 14. The gap between the adapter member 6 and the cap member 7 is sealed by, for example, a secondary seal member 15. Such an adapter member 6 is easy to attach to the container 5 and to the cap member 7, and also has excellent airtightness after attachment.

[0023] The adapter member 6 may have, for example, a breaking portion (not shown) for breaking a film (not shown) of the mouth portion 5a when the adapter member 6 is screwed to the mouth portion 5a.

[0024] 2 is a plan view of the mixing device 4. As shown in Fig. 1 and Fig. 2, the second inlet 10 has at least one flow path 16, in this embodiment one flow path 16, in the form of a slit having a longitudinal cross section. Such a second inlet 10 can prevent the flow path 16 from being blocked even if the tire repair fluid R in the container 5 contains rubber chunks, which are solid matter, and can efficiently supply the tire repair fluid R.

[0025] Furthermore, even when the viscosity of the tire repair fluid R increases under low temperature conditions, the second inlet 10 of the present embodiment can supply the tire repair fluid R from the slit-shaped flow path 16 and supply the tire repair fluid R as a mixture to the object T. Therefore, the mixer 4 of the present embodiment can efficiently repair punctures in the object T.

[0026] In a more preferred embodiment, the length L1 of the slit-shaped flow passage 16 in the longitudinal direction is preferably 3.0 to 15.0 mm. When the length L1 of the flow passage 16 is 3.0 mm or more, clogging of the flow passage 16 by rubber chunks can be reliably suppressed. When the length L1 of the flow passage 16 is 15.0 mm or less, excessive supply of tire repair fluid R that may cause clogging at the outlet 11 can be suppressed. Here, the length L1 of the flow passage 16 is the shortest length along the longitudinal direction.

[0027] The width W1 of the slit-shaped flow passage 16 in the direction perpendicular to the longitudinal direction is preferably 0.3 to 1.0 mm. When the width W1 of the flow passage 16 is 0.3 mm or more, processing is easy, which helps to reduce manufacturing costs. When the width W1 of the flow passage 16 is 1.0 mm or less, it is possible to suppress excessive supply of tire repair fluid R, which may cause clogging at the outlet 11. Here, the width W1 of the flow passage 16 is the shortest width in the direction perpendicular to the longitudinal direction.

[0028] The slit-shaped flow passage 16 in this embodiment extends with a constant flow passage cross-sectional area over the entire area. Such a flow passage 16 is easy to process, the manufacturing cost can be reduced, and the supply amount of the tire repair fluid R can be easily adjusted.

[0029] In this embodiment, the flow passage 16 is a slit that extends linearly in the longitudinal direction. Such a flow passage 16 is easy to process, and the manufacturing cost can be reduced.

[0030] Fig. 3 is a plan view of the mixing device 20 of the second embodiment. The same elements as those of the above-mentioned embodiment are given the same reference numerals, and the description thereof will be omitted. As shown in Fig. 3, the mixing device 20 of the second embodiment has a second inlet 21 for supplying the tire repair fluid R to the mixing chamber 8 (shown in Fig. 1) in the same manner as the above-mentioned mixing device 4.

[0031] The second inlet 21 of the second embodiment has one slit-shaped flow path 22 with a longitudinal cross section, similar to the above-mentioned second inlet 10. Such a second inlet 21 can prevent the flow path 22 from being blocked and efficiently supply the tire repair fluid R even if the tire repair fluid R in the container 5 (shown in FIG. 1) contains rubber chunks, which are solid matter.

[0032] In addition, the second inlet 21 of the second embodiment, like the second inlet 10 described above, can supply the tire repair fluid R from the slit-shaped flow path 22 even when the viscosity of the tire repair fluid R increases under low temperature conditions, and can supply the tire repair fluid R to the target object T as a mixture.

[0033] The flow path 22 may be, for example, a slit extending in a curved or bent shape in the longitudinal direction. The flow path 22 in the second embodiment is a slit extending in an arc shape in the longitudinal direction. Since such a flow path 22 can supply the tire repair fluid R to the vicinity of the side surface 8c (shown in FIG. 1) of the mixing chamber 8, it has excellent dispersibility of the tire repair fluid R in the mixing chamber 8 and is useful for efficiently generating a mixture.

[0034] Fig. 4 is a partially sectional perspective view of the mixing device 30 of the third embodiment. The same elements as those of the above-mentioned embodiment are given the same reference numerals, and the description thereof will be omitted. As shown in Fig. 4, the mixing device 30 of the third embodiment has a second inlet 31 for supplying the tire repair fluid R to the mixing chamber 8, similar to the above-mentioned mixing device 4.

[0035] The second inlet 31 of the third embodiment has one slit-shaped flow path 32 whose cross section is in the longitudinal direction, similar to the above-mentioned second inlet 10. Such a second inlet 31 can prevent the flow path 32 from being blocked and can efficiently supply the tire repair fluid R even if the tire repair fluid R in the container 5 (shown in FIG. 1) contains rubber chunks, which are solid matter.

[0036] In addition, the second inlet 31 of the third embodiment, like the second inlet 10 described above, can supply the tire repair fluid R from the slit-shaped flow path 32 even when the viscosity of the tire repair fluid R increases under low temperature conditions, and can supply the tire repair fluid R to the target object T as a mixture.

[0037] The flow path 32 of the third embodiment includes a first portion 32a that opens to the mixing chamber 8 with a first flow path cross-sectional area S1, and a second portion 32b above the first portion 32a and having a second flow path cross-sectional area S2 larger than the first flow path cross-sectional area S1. The flow path 32 desirably includes a step portion 32c between the first portion 32a and the second portion 32b that discontinuously changes the flow path cross-sectional area.

[0038] Such a flow path 32 can suppress the flow rate of the tire repair fluid R by generating a pressure loss in the flow path 32, and can slow down the supply of the tire repair fluid R. As a result, the second inlet 31 can optimize the amount of tire repair fluid R supplied per unit time to the mixing chamber 8, suppressing the supply of excessive tire repair fluid R to the mixing chamber 8, and suppressing the retention of the dripped tire repair fluid R.

[0039] In the third embodiment, the first portion 32a extends with a constant first flow cross-sectional area S1. The second portion 32b preferably extends with a constant second flow cross-sectional area S2. Such a second inlet 31 is easy to process and can reduce manufacturing costs.

[0040] The second flow path cross-sectional area S2 is preferably 150% to 300% of the first flow path cross-sectional area S1. When the second flow path cross-sectional area S2 is 150% or more of the first flow path cross-sectional area S1, pressure loss can be reliably generated in the flow path 32. When the second flow path cross-sectional area S2 is 300% or less of the first flow path cross-sectional area S1, retention of the tire repair fluid R at the step portion 32c can be suppressed, and the tire repair fluid R can be efficiently supplied. From this viewpoint, the second flow path cross-sectional area S2 is more preferably 180% to 200% of the first flow path cross-sectional area S1.

[0041] The angle θ between the outer circumferential surface of the second portion 32b and the step surface of the step portion 32c is preferably 30 to 140°. When the angle θ between the second portion 32b and the step portion 32c is 30° or more, the flow rate of the tire repair fluid R can be suppressed while suppressing the accumulation of the tire repair fluid R at the step portion 32c. When the angle θ between the second portion 32b and the step portion 32c is 140° or less, a pressure loss can be reliably generated in the flow path 32. From this viewpoint, the angle θ between the second portion 32b and the step portion 32c is more preferably 45 to 100°.

[0042] The flow path length L2 of the first portion 32a is preferably 10% to 70% of the total length La of the flow path 32. When the flow path length L2 of the first portion 32a is 10% or more of the total length La of the flow path 32, a pressure loss can be generated in the first portion 32a, and the flow rate of the tire repair fluid R in the first portion 32a can be suppressed. When the flow path length L2 of the first portion 32a is 70% or less of the total length La of the flow path 32, a pressure loss can be reliably generated in the step portion 32c. From this viewpoint, the flow path length L2 of the first portion 32a is more preferably 20% to 40% of the total length La of the flow path 32.

[0043] The flow path 32 may include, for example, a third portion (not shown) upstream of the second portion 32b, the third portion having a larger flow path cross-sectional area than the second flow path cross-sectional area S2, and the flow path cross-sectional area may change in multiple stages. In addition, the mixer 30 may have, for example, a second partition wall (not shown) provided upstream of the partition wall 6a, so that the second inlet 31 is configured in multiple stages.

[0044] The flow passage 32 in the third embodiment is a slit that extends linearly in the longitudinal direction. Such a flow passage 32 can be easily processed, and the manufacturing cost can be reduced.

[0045] Fig. 5 is a plan view of the mixing device 40 of the fourth embodiment. The same elements as those of the above-mentioned embodiment are given the same reference numerals, and the description thereof will be omitted. As shown in Fig. 5, the mixing device 40 of the fourth embodiment has a second inlet 41 for supplying the tire repair fluid R to the mixing chamber 8 (shown in Fig. 4) in the same manner as the above-mentioned mixing device 30.

[0046] The second inlet 41 of the fourth embodiment has one slit-shaped flow path 42 whose cross section has a longitudinal direction, similar to the above-mentioned second inlet 31. Such a second inlet 41 can prevent the flow path 42 from being blocked and can efficiently supply the tire repair fluid R even if the tire repair fluid R in the container 5 (shown in FIG. 1) contains rubber chunks, which are solid matter.

[0047] In addition, the second inlet 41 of the fourth embodiment, like the second inlet 31 described above, can supply the tire repair fluid R from the slit-shaped flow path 42 even when the viscosity of the tire repair fluid R increases under low temperature conditions, and can supply the tire repair fluid R to the target object T as a mixture.

[0048] The flow path 42 of the fourth embodiment includes a first portion 42a that opens into the mixing chamber 8 (shown in FIG. 4) with a first flow path cross-sectional area S1, and a second portion 42b above the first portion 42a and having a second flow path cross-sectional area S2 larger than the first flow path cross-sectional area S1, similar to the above-described flow path 32. The flow path 42 desirably includes a step portion 42c that discontinuously changes the flow path cross-sectional area between the first portion 42a and the second portion 42b, similar to the above-described flow path 32.

[0049] Such a flow path 42 can suppress the flow rate of the tire repair fluid R by generating a pressure loss in the flow path 42, and can slow down the supply of the tire repair fluid R. As a result, the second inlet 41 can optimize the amount of tire repair fluid R supplied per unit time to the mixing chamber 8, suppressing the supply of excessive tire repair fluid R to the mixing chamber 8, and suppressing the retention of the dripped tire repair fluid R.

[0050] The flow path 42 is, for example, a slit extending in a curved or bent shape in the longitudinal direction, similar to the above-mentioned flow path 22. The flow path 42 in the fourth embodiment is a slit extending in an arc shape in the longitudinal direction. Since such a flow path 42 can supply the tire repair fluid R to the vicinity of the side surface 8c (shown in FIG. 1) of the mixing chamber 8, it has excellent dispersibility of the tire repair fluid R in the mixing chamber 8 and is useful for efficiently generating a mixture.

[0051] Fig. 6 is a plan view of the mixing device 50 of the fifth embodiment. The same elements as those of the above-mentioned embodiment are given the same reference numerals, and the description thereof will be omitted. As shown in Fig. 6, the mixing device 50 of the fifth embodiment has a second inlet 51 for supplying the tire repair fluid R to the mixing chamber 8 (shown in Fig. 4) in the same manner as the above-mentioned mixing device 30.

[0052] The second inlet 51 has at least one flow path 52, three in the fifth embodiment, that has a slit-like cross section extending in the longitudinal direction. Such a second inlet 51 can prevent the flow path 52 from being blocked, and can efficiently supply the tire repair fluid R, even if the tire repair fluid R in the container 5 (shown in FIG. 1) contains rubber chunks that are solid matter.

[0053] In addition, the second inlet 51 of the fifth embodiment, like the second inlet 31 described above, can supply the tire repair fluid R from the slit-shaped flow path 52 even when the viscosity of the tire repair fluid R increases under low temperature conditions, and can supply the tire repair fluid R to the target object T as a mixture.

[0054] Each of the flow paths 52 of the fifth embodiment includes a first portion 52a that opens into the mixing chamber 8 (shown in FIG. 4) with a first flow path cross-sectional area S1, and a second portion 52b above the first portion 52a that has a second flow path cross-sectional area S2 larger than the first flow path cross-sectional area S1, similar to the above-described flow path 32. Each of the flow paths 52 desirably includes a step portion 52c that discontinuously changes the flow path cross-sectional area between the first portion 52a and the second portion 52b, similar to the above-described flow path 32.

[0055] Such a flow path 52 can suppress the flow rate of the tire repair fluid R by generating a pressure loss in the flow path 52, and can slow down the supply of the tire repair fluid R. As a result, the second inlet 51 can optimize the amount of tire repair fluid R supplied per unit time to the mixing chamber 8, suppressing the supply of excessive tire repair fluid R to the mixing chamber 8, and suppressing the retention of the dripped tire repair fluid R.

[0056] Each of the flow paths 52 is, for example, a slit whose longitudinal direction extends in an arc shape, similar to the above-mentioned flow path 42. Since such flow paths 52 can supply the tire repair fluid R to the vicinity of the side surface 8c (shown in FIG. 1) of the mixing chamber 8, the tire repair fluid R is excellent in dispersibility within the mixing chamber 8, which is useful for efficiently generating a mixture.

[0057] Each of the flow paths 52 may be, for example, a slit extending linearly in the longitudinal direction. In this case, the second inlet 51 may be formed, for example, in an arc shape as a whole by arranging the flow paths 52 at a certain distance from the side surface 8c of the mixing chamber 8, or may be formed in a straight line as a whole by arranging the flow paths 52 in a straight line.

[0058] Although a particularly preferred embodiment of the present invention has been described in detail above, the present invention is not limited to the above-described embodiment and can be modified in various ways. EXAMPLES

[0059] A mixer having the basic structure shown in Fig. 1 to Fig. 3 and Fig. 5 was prototyped based on the specifications in Table 1. As a comparative example, a mixer having a second inlet formed with three round holes was prototyped. Using the prototype mixer, tests were performed to check whether the flow path was clogged when a puncture was repaired five times in a normal temperature environment of 20 to 30°C, and whether the flow path was clogged when a puncture was repaired five times in a low-temperature environment of -10°C.

[0060] The results are shown as "Yes" if the flow path was clogged at least once out of the five tests, making it impossible to supply puncture repair fluid, and "No" if the flow path was not clogged in any of the five tests and puncture repair fluid was able to be supplied until the end. The results for cases where no tests were conducted are shown as "-".

[0061] The results of the tests are shown in Table 1. [Table 1]

[0062] As a result of the test, it was confirmed that the mixing device of the embodiment, compared to the comparative example, was able to use the puncture repair fluid to the end without causing clogging of the flow path at either room temperature or low temperature, and was able to efficiently repair punctures in the target object.

[0063] [Note] The present invention is as follows.

[0064] [Invention 1] A mixing device for mixing tire repair fluid and compressed air, comprising: a mixing chamber having a space for mixing the tire repair fluid and the compressed air; a first inlet for supplying the compressed air to the mixing chamber; a second inlet for supplying the tire repair fluid to the mixing chamber; an outlet for discharging the mixture of the tire repair fluid and the compressed air from the mixing chamber; The second inlet has at least one flow passage having a slit-like cross section with a longitudinal direction. Mixing equipment.

[0065] [Invention 2] 2. The mixing device according to claim 1, wherein the flow path is a slit that extends linearly in the longitudinal direction.

[0066] [Invention 3] 2. The mixing device according to claim 1, wherein the flow path is a slit extending in a curved shape in the longitudinal direction.

[0067] [Invention 4] The mixing device according to invention 3, wherein the flow path is a slit extending in an arc shape in the longitudinal direction.

[0068] [Invention 5] The length of the flow channel in the longitudinal direction is 3.0 to 15.0 mm; 5. The mixing device according to any one of Inventions 1 to 4, wherein the width of the flow channel in the direction perpendicular to the longitudinal direction is 0.3 to 1.0 mm.

[0069] [Invention 6] The mixing chamber includes a top surface located above and a floor surface located below during use, The mixing device according to any one of claims 1 to 5, wherein the second inlet is provided on the top surface.

[0070] [Invention 7] The mixing device described in invention 6, wherein the flow path includes a first portion opening into the mixing chamber with a first flow path cross-sectional area, a second portion above the first portion having a second flow path cross-sectional area larger than the first flow path cross-sectional area, and a step portion between the first portion and the second portion, which discontinuously changes the flow path cross-sectional area.

[0071] [Invention 8] 7. The mixing device according to any one of claims 1 to 6, wherein the flow path extends with a constant flow path cross-sectional area throughout.

[0072] [The present invention 9] A bottle unit including the mixing device according to any one of claims 1 to 8 and a container containing the tire repair fluid, the container has an opening for storing the tire repair fluid inside the container, The mixing device is attached to the mouth of the bottle unit.

[0073] [The present invention 10] A puncture repair kit comprising the bottle unit according to invention 9 and a compressor for supplying the compressed air. [Explanation of symbols]

[0074] 4 Mixing device 8 Mixing chamber 9 First Entrance 10 Second Entrance 11 Exit 16 Flow Path

Claims

1. A mixing device for mixing tire repair fluid and compressed air, comprising: a mixing chamber having a space for mixing the tire repair fluid and the compressed air; a first inlet for supplying the compressed air to the mixing chamber; a second inlet for supplying the tire repair fluid to the mixing chamber; an outlet for discharging the mixture of the tire repair fluid and the compressed air from the mixing chamber; The second inlet has at least one flow passage having a slit-like cross section with a longitudinal direction. Mixing equipment.

2. The mixing device according to claim 1 , wherein the flow passage is a slit that extends linearly in the longitudinal direction.

3. The mixing device according to claim 1 , wherein the flow passage is a slit extending in a curved shape in the longitudinal direction.

4. The mixing device according to claim 3 , wherein the flow path is a slit whose longitudinal direction extends in an arc shape.

5. The length of the flow path in the longitudinal direction is 3.0 to 15.0 mm; 5. The mixing device according to claim 1, wherein the width of the flow channel in a direction perpendicular to the longitudinal direction is 0.3 to 1.0 mm.

6. The mixing chamber includes a top surface located above and a floor surface located below during use, The mixing device according to claim 1 , wherein the second inlet is provided in the top surface.

7. 7. The mixing device according to claim 6, wherein the flow path includes a first portion that opens into the mixing chamber with a first flow path cross-sectional area, a second portion above the first portion that has a second flow path cross-sectional area larger than the first flow path cross-sectional area, and a step portion between the first portion and the second portion that discontinuously changes the flow path cross-sectional area.

8. 5. The mixing device according to claim 1, wherein the flow passage extends with a constant flow passage cross-sectional area throughout.

9. A bottle unit including the mixing device according to any one of claims 1 to 4 and a container containing the tire repair fluid, the container has an opening for storing the tire repair fluid inside the container, The mixing device is attached to the mouth of the bottle unit.

10. A puncture repair kit comprising the bottle unit according to claim 9 and a compressor for supplying the compressed air.

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