Mixer, bottle unit and puncture repair kit

Abstract

To provide a mixer, bottle unit and puncture repair unit capable of efficiently repair puncture of a target object.SOLUTION: A mixer 4 has a mixing chamber 8 with a space to mix puncture repair fluid R and compressed air A, a first inlet 9 for supplying the compressed air A to the mixing chamber 8, a second inlet 10 for supplying the puncture repair fluid R to the mixing chamber 8, and an outlet 11 for discharging a mixture of the puncture repair fluid R and the compressed air A from the mixing chamber 8. The second inlet 10 includes a flow path 12 that consists of a first part 12a that opens in the mixing chamber 8 and a second part 12b on the upstream side of the first part 12a. The first part 12a has a first flow path cross-sectional area S1. The second part 12b has a second flow path cross-sectional area S2 that is larger than the first flow path cross-sectional area S1. The flow path 12 includes a stepped portion 12c that non-continuously changes the flow path cross-sectional area between the first part 12a and the second part 12b.SELECTED DRAWING: Figure 2

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 a flow path including a first portion opening in the mixing chamber and a second portion upstream of the first portion, wherein the first portion has a first flow path cross-sectional area and the second portion has a second flow path cross-sectional area larger than the first flow path cross-sectional area, and wherein the flow path includes a step portion between the first portion and the second portion that discontinuously changes the flow path cross-sectional area. 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. 2 is a partial cross-sectional perspective view of a mixing device. [Diagram 3] FIG. [Figure 4] FIG. 4 is a plan view of a mixing device according to a second embodiment. [Diagram 5] FIG. 11 is a partially cutaway perspective view of a mixing device according to a third embodiment. [Figure 6] FIG. 13 is a plan view of a mixing device according to a fourth embodiment. [Figure 7] 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] Even in the case of a mixer 4 in which the outlet 11 is located at the bottom, if the amount of tire repair fluid R dripping from the second inlet 10 is excessive, there is an increased risk that the tire repair fluid R will accumulate in the mixing chamber 8 or the outlet 11. The accumulation of the tire repair fluid R can cause clogging and be a factor that prevents the tire from efficiently repairing a puncture in the target object T.

[0021] In general, the supply of the tire repair fluid R can be slowed down by reducing the flow path cross-sectional area of ​​the second inlet 10. On the other hand, forming the second inlet 10 with a small flow path cross-sectional area is difficult to process, which increases the manufacturing cost and also increases the risk of the tire repair fluid R being retained at the second inlet 10.

[0022] 2 is a partially sectional perspective view of the mixing device 4. As shown in FIG. 2, the second inlet 10 of this embodiment has a flow path 12 including a first portion 12a that opens in the mixing chamber 8 and a second portion 12b on the upstream side of the first portion 12a. The first portion 12a has, for example, a first flow path cross-sectional area S1. The second portion 12b desirably has a second flow path cross-sectional area S2 larger than the first flow path cross-sectional area S1. Such a second inlet 10 is easy to process and can reduce manufacturing costs.

[0023] The flow path 12 of the present embodiment includes a step portion 12c between the first portion 12a and the second portion 12b that discontinuously changes the flow path cross-sectional area. Such a flow path 12 can suppress the flow rate of the tire repair fluid R by generating a pressure loss within the flow path 12, and can slow down the supply of the tire repair fluid R.

[0024] As a result, the second inlet 10 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. Therefore, the mixing device 4 of the present embodiment can efficiently repair punctures in the target object T.

[0025] In a more preferred embodiment, the first portion 12a extends with a constant first flow passage cross-sectional area S1. The second portion 12b desirably extends with a constant second flow passage cross-sectional area S2. Such a second inlet 10 is easy to process and can reduce manufacturing costs.

[0026] 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 12. 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 12c 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.

[0027] The angle θ between the outer peripheral surface of the second portion 12b and the step surface of the step portion 12c is preferably 30 to 140°. When the angle θ between the second portion 12b and the step portion 12c 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 12c. When the angle θ between the second portion 12b and the step portion 12c is 140° or less, a pressure loss can be reliably generated in the flow path 12. From this viewpoint, the angle θ between the second portion 12b and the step portion 12c is more preferably 45 to 100°.

[0028] The flow path length L1 of the first portion 12a is preferably 10% to 70% of the total length La of the flow path 12. When the flow path length L1 of the first portion 12a is 10% or more of the total length La of the flow path 12, a pressure loss can be generated in the first portion 12a, and the flow rate of the tire repair fluid R in the first portion 12a can be suppressed. When the flow path length L1 of the first portion 12a is 70% or less of the total length La of the flow path 12, a pressure loss can be reliably generated in the step portion 12c. From this viewpoint, the flow path length L1 of the first portion 12a is more preferably 20% to 40% of the total length La of the flow path 12.

[0029] The flow path 12 may include, for example, a third portion (not shown) having a flow path cross-sectional area larger than the second flow path cross-sectional area S2 upstream of the second portion 12b, and the flow path cross-sectional area may change in multiple stages. In addition, the mixer 4 may have, for example, a second partition wall (not shown) provided upstream of the partition wall 6a, so that the second inlet 10 is configured in multiple stages.

[0030] Fig. 3 is a plan view of the mixing device 4. As shown in Fig. 2 and Fig. 3, the second inlet 10 has a plurality of flow paths 12, three in this embodiment. Each of the flow paths 12 preferably has a circular cross section. Such a second inlet 10 is easy to process, and the manufacturing cost can be reduced.

[0031] The maximum inner diameter φ1 of the first portion 12a is preferably 0.5 to 1.0 mm. When the maximum inner diameter φ1 of the first portion 12a is 0.5 mm or more, processing is easy and it helps to reduce manufacturing costs. When the maximum inner diameter φ1 of the first portion 12a is 1.0 mm or less, it helps to generate a pressure loss in the flow path 12.

[0032] The maximum inner diameter φ2 of the second portion 12b is preferably 1.0 to 3.0 mm. When the maximum inner diameter φ2 of the second portion 12b is 1.0 mm or more, this helps to generate a pressure loss in the flow path 12. When the maximum inner diameter φ2 of the second portion 12b is 3.0 mm or less, the tire repair fluid R is prevented from accumulating at the step portion 12c, and the tire repair fluid R can be efficiently supplied.

[0033] 1, the mixing chamber 8 may have, for example, a protruding portion 13 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 13. Such a protruding portion 13 can provide directionality to the flow inside the mixing chamber 8, and can efficiently discharge the mixture of the tire repair fluid R and the compressed air A.

[0034] The mixing chamber 8 may have a plurality of hemispherical recesses 14 formed in at least one of the top surface 8a, the floor surface 8b, and the side surface 8c. Such a plurality of recesses 14 helps to smooth the flow and shorten the residence time of the mixture in the mixing chamber 8.

[0035] 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 15. The gap between the adapter member 6 and the cap member 7 is sealed by, for example, a secondary seal member 16. 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.

[0036] 1 and 3, the adapter member 6 has a breaking portion 17 that breaks a film (not shown) on the mouth portion 5a when the adapter member 6 is attached to the mouth portion 5a of the container 5, for example. The breaking portion 17 is preferably provided in an arc shape in a plan view. When the mixing device 4 is attached to the container 5, such a breaking portion 17 can break the film on the mouth portion 5a and supply the tire repair fluid R to the mixing chamber 8.

[0037] In the present embodiment, the flow path 12 of the second inlet 10 is provided on the same circumference as the rupture portion 17 in a plan view. Since such a second inlet 10 can supply the tire repair fluid R to the vicinity of the side surface 8c 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.

[0038] 4 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. 4, the flow path 12 of the second inlet 10 may be provided, for example, radially inward from the rupture portion 17 in a plan view. Since such a second inlet 10 is disposed radially inward from the mouth portion 5a (shown in FIG. 1) of the container 5, the tire repair fluid R of the container 5 can be efficiently supplied to the mixing chamber 8.

[0039] Fig. 5 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. 5, 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.

[0040] The second inlet 31 has at least one flow path 32, one in the third embodiment. The flow path 32 in the third embodiment is a slit having a longitudinal cross section. Such a second inlet 31 can suppress clogging of the flow path 32 even if rubber lumps occur in the tire repair fluid R in the container 5, and can efficiently supply the tire repair fluid R. In addition, the flow path 32 in the third embodiment can supply the tire repair fluid R from the slit even when the viscosity of the tire repair fluid R increases under low temperature conditions.

[0041] Similar to the above-described flow path 12, the flow path 32 of the second inlet 31 of the third embodiment includes a first portion 32a opening in the mixing chamber 8, a second portion 32b on the upstream side of the first portion 32a, and at least one step portion 32c between the first portion 32a and the second portion 32b. Similar to the above-described second portion 12b, the second flow path cross-sectional area S2 of the second portion 32b is desirably larger than the first flow path cross-sectional area S1 of the first portion 32a.

[0042] The width W1 of the first portion 32a of the slit in the direction perpendicular to the longitudinal direction is preferably 0.3 to 1.0 mm. When the width W1 of the first portion 32a is 0.3 mm or more, processing is easy, which helps to reduce manufacturing costs. When the width W1 of the first portion 32a is 1.0 mm or less, it helps to generate a pressure loss in the flow path 32.

[0043] The width W2 of the second portion 32b of the slit in the direction perpendicular to the longitudinal direction is preferably 1.0 to 1.5 mm. The width W2 of the second portion 32b being 1.0 mm or more helps to generate a pressure loss in the flow path 32. The width W2 of the second portion 32b being 1.5 mm or less can suppress accumulation of the tire repair fluid R at the step portion 12c, and the tire repair fluid R can be efficiently supplied.

[0044] In the third embodiment, the slits of the flow passage 32 extend linearly. Such a flow passage 32 can be easily processed, and the manufacturing cost can be reduced.

[0045] Fig. 6 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. 6, 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. 5) in the same manner as the above-mentioned mixing device 30.

[0046] The second inlet 41 of the fourth embodiment has one flow path 42, similar to the above-mentioned second inlet 31. The flow path 42 of the fourth embodiment is a slit having a longitudinal cross section, similar to the above-mentioned flow path 32. Such a second inlet 41 can be easily processed, and the manufacturing cost can be reduced.

[0047] The slit of the flow path 42 in the fourth embodiment extends in a curved shape. Since such a second inlet 41 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 in the mixing chamber 8, which is useful for efficiently generating a mixture.

[0048] Fig. 7 is a plan view of a 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. 7, 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. 5) in the same manner as the above-mentioned mixing device 40.

[0049] The second inlet 51 has a plurality of flow paths 52, three in the fifth embodiment. The flow paths 52 in the fifth embodiment are slits having a longitudinal cross section, similar to the above-mentioned flow path 42. Such a second inlet 41 can be easily processed, and the manufacturing cost can be reduced.

[0050] The slit of the flow path 42 in the fourth embodiment extends in a curved shape. Since such a second inlet 41 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 in the mixing chamber 8, which is useful for efficiently generating a mixture.

[0051] 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

[0052] A mixing device having the basic structure shown in Figures 1 to 3 was prototyped based on the specifications in Table 1. The prototype mixing device was used to test the supply performance of the puncture repair fluid. The test method for the supply performance was as follows.

[0053] <Supply performance> The prototype mixing device was attached to a container containing tire repair fluid, and when the mixture was discharged by connecting it to a compressor, the amount of tire repair fluid supplied per unit time was calculated as the average value of 100 measurements. The results were expressed as an index with the comparative example set at 100, and the smaller the value, the gentler the supply of tire repair fluid and the reduced risk of retention.

[0054] The results of the tests are shown in Table 1. [Table 1]

[0055] As a result of the tests, it was confirmed that the mixing device of the embodiment supplies a gentler amount of tire repair fluid per unit time than the comparative example, reduces the risk of the tire repair fluid remaining in the mixing chamber or outlet, and is capable of efficiently repairing punctures in the target object.

[0056] [Note] The present invention is as follows.

[0057] [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 a flow path including a first portion that opens into the mixing chamber and a second portion upstream of the first portion, The first portion has a first flow cross-sectional area; the second portion has a second cross-sectional flow area greater than the first cross-sectional flow area; The flow path includes a step portion between the first portion and the second portion, which discontinuously changes a flow path cross-sectional area. Mixing equipment.

[0058] [Invention 2] The first portion extends through a constant first flow cross-sectional area, 2. A mixing device as described in claim 1, wherein the second portion extends with a constant second flow cross-sectional area.

[0059] [Invention 3] 3. The mixing device according to invention 1 or 2, wherein the second flow path cross-sectional area is 150% to 300% of the first flow path cross-sectional area.

[0060] [Invention 4] 4. The mixing device according to any one of claims 1 to 3, wherein the flow path has a circular cross section.

[0061] [Invention 5] The maximum inner diameter of the first portion is 0.5 to 1.0 mm; 5. The mixing device according to claim 4, wherein the second portion has a maximum inner diameter of 1.0 to 3.0 mm.

[0062] [Invention 6] 4. The mixing device according to any one of claims 1 to 3, wherein the flow path is a slit having a cross section in the longitudinal direction.

[0063] [Invention 7] 7. A mixing device according to claim 6, wherein the slit extends linearly.

[0064] [Invention 8] 7. A mixing device according to claim 6, wherein the slit extends in a curved shape.

[0065] [The present invention 9] The width of the first portion of the slit in a direction perpendicular to the longitudinal direction is 0.3 to 1.0 mm; 9. The mixing device according to any one of claims 6 to 8, wherein the second portion of the slit has a width of 1.0 to 1.5 mm in a direction perpendicular to the longitudinal direction.

[0066] [The present invention 10] 10. The mixing device according to any one of claims 1 to 9, wherein the flow path length of the first portion is 10% to 70% of the total length of the flow path.

[0067] [The present invention 11] A bottle unit including the mixing device according to any one of claims 1 to 10 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.

[0068] [The present invention 12] A puncture repair kit comprising the bottle unit according to the present invention 11 and a compressor for supplying the compressed air. [Explanation of symbols]

[0069] 4 Mixing device 8 Mixing chamber 9 First Entrance 10 Second Entrance 11 Exit 12 Flow Path 12a Part 1 12b Part 2 12c Step

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 a flow path including a first portion that opens into the mixing chamber and a second portion upstream of the first portion, The first portion has a first flow cross-sectional area; the second portion has a second cross-sectional flow area greater than the first cross-sectional flow area; The flow path includes a step portion between the first portion and the second portion, which discontinuously changes a flow path cross-sectional area. Mixing equipment.

2. The first portion extends through a constant first flow cross-sectional area, 2. The mixing device of claim 1, wherein the second portion extends through a constant second cross-sectional area.

3. The mixing device according to claim 2 , wherein the second flow passage cross-sectional area is 150% to 300% of the first flow passage cross-sectional area.

4. 4. A mixer according to claim 1, wherein the flow passage has a circular cross section.

5. The maximum inner diameter of the first portion is 0.5 to 1.0 mm; 5. The mixing device of claim 4, wherein the maximum inner diameter of the second portion is between 1.0 and 3.0 mm.

6. 4. The mixing device according to claim 1, wherein the flow passage is a slit having a longitudinal cross section.

7. 7. The mixing device according to claim 6, wherein the slit extends linearly.

8. 7. The mixing device according to claim 6, wherein the slit extends in a curved shape.

9. The width of the first portion of the slit in a direction perpendicular to the longitudinal direction is 0.3 to 1.0 mm, 7. The mixing device according to claim 6, wherein the width of the second portion of the slit in a direction perpendicular to the longitudinal direction is 1.0 to 1.5 mm.

10. 4. The mixing device according to claim 1, wherein the flow path length of the first portion is between 10% and 70% of the total flow path length.

11. A bottle unit including the mixing device according to any one of claims 1 to 3 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.

12. A puncture repair kit comprising the bottle unit according to claim 11 and a compressor for supplying the compressed air.

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