JP2015089650A - Bottle unit for puncture repair - Google Patents

Abstract

PROBLEM TO BE SOLVED: To remove an inner lid easily by pushing up a sheath tube while suppressing detachment of the inner lid during storage.SOLUTION: An extraction cap 5 attached to a bottle container 4 includes a cap body 14 provided with a trunk part 16 whose upper end part is attached to a mouth part 4A of the bottle container 4 and an air feeding tube part 17 which rises from a bottom part 16B of the trunk part 16 and forms a first passage 8 and a sheath tube 15 inserted externally into the air feeding tube part 17 in a vertically slidable way and held. An inner lid 18 closing the first passage 8 is fitted to the upper end part of the air feeding tube part 17. The inner lid 18 is removed from the air feeding tube part 17 by pushing up with the sheath tube 15 to open the first passage 8. A thrusting part 56 is protruded on the upper end surface of the sheath tube 15.

Description

The present invention relates to a puncture repair bottle unit that injects puncture repair liquid and compressed air into a punctured tire in order to repair the puncture quickly.
About.

  For example, Patent Document 1 below describes a puncture repair bottle unit c in which an extraction cap b is attached to the mouth of a bottle container a as shown in FIG.

  The extraction cap b includes a connecting means e that can connect and fix the extraction cap b to the compressor d, a first flow path f1 that takes compressed air from the compressor d into the bottle container a, and intake of compressed air. The second flow path f2 for sequentially taking out the puncture repair liquid and the compressed air from the bottle container a, and the first and second flow paths f1 and f2 which close the first and second flow paths f1 and f2 in a state before being connected by the connecting means e. 2 closing means g1, g2.

  The first flow path f1 is formed from a center hole h1 of an air supply pipe portion h whose lower end is connected to the compressor d. A sheath pipe i is slidably inserted in the air supply pipe part h so as to be slidable in the vertical direction. The first closing means g1 is formed of an inner lid j fitted to the upper end portion of the air feeding pipe portion h.

  When the extraction cap b is connected to the compressor d, the lower end of the sheath pipe i is pushed up against the compressor d. At this time, as shown in FIGS. 10A and 10B, the inner lid j is also pushed up by the pushed-up sheath tube i, and the locking projections ja on the inner lid j side are on the air feed tube portion h side. By overcoming the locking projection ha, the inner lid j is detached from the upper end portion of the air feeding pipe portion h, and the first flow path f1 is opened.

  However, in the extraction cap b, since the inner lid j is pushed up horizontally by the sheath tube i, in order for the locking projection ja to get over the locking projection ha, the entire inner lid j needs to be greatly enlarged and deformed. . That is, a large pushing force is required to remove the inner lid j, and the workability at the time of connection is impaired. In particular, when puncture repair is performed in an environment of extremely low temperatures of below freezing and below minus 30 ° C., there is a problem that the inner lid j becomes hard due to low temperatures and cannot be removed.

  If the protrusion heights of the locking protrusions ja and ha are reduced to make it easier to get over, there is a risk that the inner lid j will come off due to vibration during storage, etc., leading to the outflow of puncture repair liquid.

JP 2013-67013 A

  It is an object of the present invention to provide a bottle unit for a puncture repair kit that can easily remove an inner lid by pushing up a sheath tube while suppressing detachment of the inner lid during storage.

The present invention comprises a bottle container containing a puncture repair liquid, and an extraction cap attached to the mouth,
And the extraction cap is
Connecting means for connecting and fixing the extraction cap to a compressor;
A first flow path for taking compressed air from the compressor into the bottle container;
A second flow path for sequentially taking out puncture repair liquid and compressed air from the bottle container by taking in compressed air;
A bottle unit comprising first and second closing means for closing the first and second flow paths in a state before connection by the connection means,
The extraction cap is
A barrel part having an upper end attached to the mouth part of the bottle container and having a bottom part closed at the bottom part of the cylindrical part having an inner hole connected to the bottle container, rising from the bottom part concentrically with the cylindrical part and A cap body having an air supply pipe portion having a central hole forming a first flow path;
And the air supply pipe part is provided with a sheath pipe that is slidably fitted up and down so as to be slidable up and down, and pushed upward in connection with the connection by the connection means,
The first closing means includes an inner lid that is fitted to an upper end portion of the air supply pipe portion and closes the first flow path,
The inner lid is pushed up by the pushed-up sheath tube, disengages from the upper end portion of the air supply tube portion, and opens the first flow path,
In addition, a protruding projection for pushing up the inner lid is provided on the upper end surface of the sheath tube in a stepped manner.

  In the bottle unit for the puncture repair kit according to the present invention, it is preferable that the protruding protrusion has a protruding height from the upper end surface of 1 to 10 mm.

  In the bottle unit for the puncture repair kit according to the present invention, the push-up protrusion is formed in an angle range in which an angle θ centered on a center point of the sheath tube in the upper end surface is 90 ° or less. preferable.

In the bottle unit for the puncture repair kit according to the present invention, the mouth portion of the bottle container is screwed into the inner hole of the cap body,
Preferably, the first ratchet teeth are formed in the mouth portion, and the second ratchet teeth are formed in the inner hole so as to mesh with each other only in the anti-screwing rotation direction and stop.

  In the bottle unit for the puncture repair kit according to the present invention, an upper end of the air supply pipe portion is located below the liquid level of the puncture repair liquid, and the bottle container is disposed in the first flow path. A one-way valve is preferably provided to prevent back flow of puncture repair fluid from the

  In the present invention, as described above, a protruding protrusion protruding in a step shape is formed on the upper end surface of the sheath tube. Therefore, for example, an effect close to removing the lid of the bottle by bottle opener is produced, and the inner lid can be easily removed. Specifically, the formation of the push-up protrusion reduces the contact area between the sheath tube and the inner lid at the time of push-up. Therefore, when the push-up force is the same, the push-up pressure acting on the inner lid can be increased as much as the contact area is reduced, and a part of the inner lid can be deformed.

  In addition, when removing the inner lid, it is conventionally necessary to deform the entire inner lid, which requires a large force. However, in the present invention, only a part of the inner lid is deformed. Do not need. With these effects, it is possible to easily remove the inner lid with a smaller push-up force while suppressing the removal of the inner lid during storage.

It is sectional drawing which shows the state before the connection of the bottle unit of this invention. It is a fragmentary sectional view which expands and shows the principal part. It is a fragmentary sectional view which shows the connection state of a bottle unit and a compressor. (A), (B) is the top view and sectional drawing which show the upper end part of a sheath pipe. (A), (B) is a fragmentary sectional view which shows the state from which an inner cover remove | deviates from an air feeding pipe part by a sheath pipe. (A) is sectional drawing and bottom view of a bottle container, (B) is the top view and sectional drawing of a trunk | drum. It is an expanded sectional view of the 1st and 2nd ratchet teeth. It is sectional drawing which shows the other Example of an extraction cap. It is sectional drawing which shows the conventional bottle unit for puncture repair kits. (A), (B) is a fragmentary sectional view showing separation from an air feed pipe part of an inner lid in a conventional bottle unit.

Hereinafter, embodiments of the present invention will be described in detail.
FIG. 1 is a cross-sectional view showing an embodiment of the bottle unit 1 of the present invention, and the bottle unit 1 and the compressor 3 constitute a tire puncture repair kit K. FIG. 1 shows a state Y1 before the bottle unit 1 and the compressor 3 are connected.

  The compressor 3 includes a movable portion having a known structure using, for example, a motor, a piston, a cylinder, and the like, and in this example, includes a compressed air discharge port portion 6 for discharging compressed air to the upper surface 3S.

  The bottle unit 1 includes a bottle container 4 and an extraction cap 5 attached to the mouth portion 4A. The bottle container 4 includes a container portion 4B for storing the puncture repair liquid T and the small-diameter cylindrical mouth portion 4A protruding from the lower end thereof.

  The extraction cap 5 includes a connecting means 7 that can connect and fix the extraction cap 5 to the compressor 3, a first flow path 8 that takes compressed air from the compressor 3 into a bottle container, and compressed air The second flow path 9 for sequentially taking out the puncture repair liquid T and the compressed air from the bottle container 4 by taking-in, and the first and second flow paths 8 and 9 in the state Y1 before the connection by the connection means 7 First and second closing means 12 and 13 for closing are provided.

  As shown in FIG. 2, the extraction cap 5 includes a cap body 14 and a sheath tube 15. The cap main body 14 has a barrel composed of a cylindrical portion 16A whose upper end portion is airtightly attached to the mouth portion 4A of the bottle container 4 via, for example, a seal member 21, and a bottom portion 16B which closes the lower end portion of the cylindrical portion 16A. A portion 16 and an air supply pipe portion 17 rising from the bottom portion 16B. The inner hole 16 </ b> H of the cylindrical portion 16 </ b> A communicates with the bottle container 4.

  In this example, a case where the mouth portion 4A and the inner hole 16H of the cylindrical portion 16A are screwed is shown. Specifically, as shown in FIG. 6, a male screw portion 50A is formed on the outer peripheral surface of the mouth portion 4A of the bottle container 4, and the male screw portion 50A is formed on the upper end portion of the inner peripheral surface of the inner hole 16H of the cap body 14. A female screw portion 50B is formed to be screwed together. Further, in this example, in order to prevent the puncture repair liquid T from leaking due to vibration during storage or the like, the loosening prevention means 51 having a ratchet mechanism is provided.

  The locking means 51 of this example includes a first ratchet tooth 51A formed on the outer peripheral surface of the mouth portion 4A and the upper side of the male screw portion 50A, an inner peripheral surface of the inner hole 16H and the upper side of the inner screw portion 50B. And the second ratchet teeth 51B. As shown in FIG. 7, the first and second ratchet teeth 51A and 51B are engaged with each other only in the anti-screwing rotation direction R and are prevented from rotating. , Locking surfaces A1 and B1 each having a substantially radial surface that meshes and locks with each other are disposed. On the other hand, on the circumferential direction end on the screwing rotation direction side, smooth overpass surfaces A2 and B2 such as an arc shape or an inclined surface shape that can pass over each other are arranged. If the heights Ah and Bh of the first and second ratchet teeth 51A and 51B are too small, the rotation stop is insufficient. Conversely, if the height is too large, a large force is required for riding over and the workability of screwing is impaired. Therefore, the heights Ah and Bb are preferably 1 to 10 mm.

  As shown in FIG. 2, the air supply pipe portion 17 rises concentrically from the bottom portion 16 </ b> B and the cylindrical portion 16 </ b> A, and the center hole 17 </ b> H constitutes the first flow path 8.

  In this example, the upper end of the air supply pipe portion 17 is positioned below the liquid level of the puncture repair liquid T, and the puncture repair liquid T from the bottle container 4 is placed in the first flow path 8. A one-way valve 55 is provided to prevent backflow. The one-way valve 55 includes a stepped valve seat 55a formed in the first flow path 8, a ball valve 55b for opening and closing the valve seat 55a, and a spring for pressing the ball valve 55b against the valve seat 55a. 55c.

  The body portion 16 includes an air intake port portion 10 that communicates with the first flow path 8. In this example, the air intake port 10 is directly connected to the compressed air discharge port 6 of the compressor 3 without using a hose or the like. Specifically, one of the compressed air discharge port 6 and the air intake port 10 is composed of a connection nozzle 25 protruding toward the other, and the other is from a nozzle receiver 26 into which the connection nozzle 25 is inserted. It is formed. In this example, the case where the air intake port portion 10 is formed as a connection nozzle 25 protruding downward from the bottom portion 16B and the compressed air discharge port portion 6 is formed as a nozzle receiver 26 is shown.

  Further, the connecting means 7 integrally fixes the bottle unit 1 and the compressor 3 at the puncture repair site during puncture repair, thereby preventing the bottle unit 1 from being overturned during the puncture repair work. The connecting means 7 of this example is composed of a plurality of, for example, two to three locking claws 30 extending downward from the bottom portion 16B. The latching claw 30 has a hook portion 30B having a substantially right triangular shape projecting outward at the tip of the main portion 30A connected to the bottom portion 16B. On the compressor 3 side, an engaging portion 31 that matches the connecting means 7 is formed. The engaging portion 31 of this example includes a claw engaging hole 31A that is engaged with the hook portion 30B and is prevented from coming off. The claw engagement hole 31 </ b> A of this example is formed in a frame frame 32 formed integrally with the nozzle receiver 26.

  Next, the sheath tube 15 is externally held by the air feeding tube portion 17 so as to be slidable in the vertical direction. The sheath tube 15 is attached to the sheath tube 15 by the connection by the connecting means 7. A push-up lever 19 that pushes upward is formed. The push-up lever 19 is composed of, for example, two to three projecting pieces extending from the lower end of the sheath tube 15 through the bottom portion 16B and projecting downward. The bottom portion 16B is formed with a through hole 16Bh that allows the push-up lever 19 to pass therethrough. The push-up lever 19 abuts on the upper surface 3S of the compressor 3 in this example in accordance with the connection by the connecting means 7, and pushes up the sheath tube 15 upward.

  The sheath tube 15 is provided with second closing means 13 for closing the second flow path 9 so as to be movable together with the sheath tube 15. A first closing means 12 for closing the first flow path 8 is formed at the upper end of the air supply pipe portion 17. These first and second closing means 12 and 13 are activated by the pushing-up of the sheath tube 15 to open the first and second flow paths 8 and 9.

  Here, the second flow path 9 includes an annular vertical flow path portion 9A formed by a gap between the sheath tube 15 and the cylindrical portion 16A, and an intersection P at the vertical flow path portion 9A. A horizontal flow path portion 9 </ b> B that is continuous and extends from the intersection point P to the tip opening portion 11 </ b> A of the take-out port portion 11 is provided. The take-out port portion 11 is formed as a connecting portion of the hose 40 for injecting the puncture repair liquid T and the compressed air into the tire side so as to protrude radially outward from the cylindrical portion 16A. The hose 40 is wound around the cylindrical portion 16A and stored.

  As shown in FIG. 3, the inner wall surface W of the cylindrical portion 16A includes a large-diameter wall portion Wa in which the inner hole 16H has a large diameter, and the large-diameter wall portion Wa on the lower side via a stepped portion Wb. A continuous small-diameter wall portion Wc. The stepped portion Wb is formed at a position higher than the intersection point P. Therefore, the small-diameter wall portion Wc is located below the intersection point P with the small-diameter wall portion WcU above the stepped portion Wb and the intersection point P. It is further divided into a small-diameter wall portion WcL below.

  The second closing means 13 of the present example is formed by upper and lower ring-shaped seal members 20U, 20L that are provided on the sheath tube 15 so as to be movable together. The seal members 20U and 20L are so-called O-rings and are held by a circumferential groove formed on the outer periphery of the sheath tube 15. In the state Y1 before connection (shown in FIG. 2), the second closing means 13 is in contact with the upper small-diameter wall portion WcU so that the upper seal member 20U comes into contact with the second flow path 9. Is closed to prevent the puncture repair liquid T from flowing out to the take-out port 11 side. Further, in the connected state Y2 (shown in FIG. 3), the upper seal member 20U moves upward beyond the stepped portion Wb by pushing up the sheath tube 15 by the push-up lever 19. At this time, a gap G is formed between the upper sealing member 20U and the large-diameter wall portion Wa, thereby opening the second flow path 9.

  The first closing means 12 is an inner lid 18 fitted to the upper end portion 17E of the air supply pipe portion 17. The inner lid 18 is pushed up by the sheath tube 15 and the air supply pipe portion 17 is inserted. And the first flow path 8 is opened.

  As shown in FIGS. 5 (A) and 5 (B), the air supply pipe portion 17 of the present example has, for example, an annular first projecting from the outer peripheral surface of the air supply pipe portion 17 at a small height on the upper end side thereof. A locking projection 33 is provided. The inner lid 18 has a second locking projection 34 which protrudes at a small height and can get over the first locking projection 33 on the inner peripheral surface thereof. In this example, a case where a plurality of (for example, four) second locking projections 34 are spaced apart in the circumferential direction is shown. In this example, the first and second locking projections 33 and 34 have a semicircular cross-sectional shape. However, for example, a V shape may be used as appropriate. In the state Y1 before the connection, the inner lid 18 has its second locking projection 34 engaged with the first locking projection 33 on its lower side.

  In addition, in the state Y1 before the connection, the upper end of the sheath tube 15 is located below the inner lid 18. Further, a seal ring 36 such as an O-ring that seals between the air supply pipe portion 17 and the sheath pipe 15 is attached.

  As shown in FIGS. 4A and 4B, on the upper end surface 15S of the sheath tube 15, a protruding protrusion 56 that pushes up the inner lid 18 is provided in a step shape. The push-up protrusion 56 is preferably formed in an angle range in which the angle θ around the center point n of the sheath tube 15 in the upper end surface 15S is 90 ° or less.

  By forming the push-up protrusion 56, for example, an effect close to that of a bottle opener is produced, and the inner lid 18 can be easily removed with a smaller force. Specifically, the contact area between the sheath tube 15 and the inner lid 18 at the time of pushing up is reduced as compared with the case where the entire upper end surface 15S of the sheath tube 15 contacts. Therefore, when the push-up force is the same, the push-up pressure acting on the inner lid 18 can be increased as much as the contact area is reduced, and a part of the inner lid 18 can be deformed like a bottle opener. Moreover, when the inner lid 18 is removed, a large force is conventionally required to deform (expand the diameter) of the entire inner lid 18, but in the present invention, only a part of the inner lid 18 is deformed. It does n’t require that much power. With these effects, it is possible to easily remove the inner lid 18 with a smaller push-up force while suppressing the removal of the inner lid during storage.

  The protruding height H of the protruding protrusion 56 from the upper end surface 15S is preferably in the range of 1 to 10 mm, and when it is less than 1 mm, the above effect is not sufficiently exhibited. Further, even if the protruding height H exceeds 10 mm, the above-mentioned effect is not expected to be improved. On the contrary, the thrusting protrusion 56 becomes insufficient in strength, and the thrusting protrusion 56 may be damaged at the time of thrusting. From such a viewpoint, the lower limit of the protrusion height H is preferably 2 mm or more, and the upper limit is preferably 5 mm or less.

  FIG. 8 shows another embodiment of the extraction cap 5. In the extraction cap 5 of this example, the air intake port 10 and the compressed air discharge port 6 (not shown) of the compressor 3 are connected via a hose 41 instead of a direct connection. Specifically, the air intake port portion 10 of this example is a hose connection portion protruding radially outward from the cylindrical portion 16A, and the other end of the hose 41 connected to the compressor 3 at one end. It is formed to be connectable. The center hole 10H of the air intake port portion 10 is electrically connected to the center hole 17H of the air supply tube portion 17. In the case of the extraction cap 5 of this example, the compressor 3 can be used not only for puncture repair, but also for filling air into, for example, an air mat or a floating bag.

  As mentioned above, although especially preferable embodiment of this invention was explained in full detail, this invention is not limited to embodiment of illustration, It can deform | transform and implement in a various aspect.

In order to confirm the effect of the present invention, a bottle unit having the structure shown in FIG. 1 was prototyped based on the specifications in Table 1, and the removal performance of the inner lid of each sample was tested. Each bottle unit is different only in the protruding protrusion provided at the upper end of the sheath tube.
The common specifications are as follows.
-Projection height of the first locking projection formed on the air supply pipe: 5.0 mm
-Projection height of the second locking projection formed on the inner lid: 0.25 mm
・ Material of inner lid: Low density polyethylene (LDPE), thickness about 1.5mm
-Inner lid inner diameter: φ11.0mm

Test method:
(A) Room temperature test:
The bottle unit was stored in a normal temperature environment (25 ° C.) for 24 hours, and then immediately pushed into the compressor, and the pushing force when the inner lid was removed from the air feeding pipe (that is, the pushing force of the sheath tube) was measured. .

(B) Cryogenic test:
After storing the bottle unit in a cryogenic environment (−40 ° C.) for 24 hours, immediately push the bottle unit into the compressor, and push the force when the inner lid is removed from the air supply pipe (that is, the pushing force of the sheath pipe). It was measured.

  As shown in the table, it can be confirmed that the inner lid can be removed from the example product with a slight pushing force (the pushing force of the sheath tube) in a normal temperature environment (25 ° C.) and a very low temperature environment (−40 ° C.). .

DESCRIPTION OF SYMBOLS 1 Bottle unit 3 Compressor 4 Bottle container 4A Mouth part 5 Extraction cap 7 Connection means 8 1st flow path 9 2nd flow path 12 1st closing means 13 2nd closing means 14 Cap main body 15 Sheath pipe 15S Upper end surface 16 Body 16H Inner hole 16A Cylindrical part 16B Bottom part 17 Air supply pipe part 17H Center hole 18 Inner lid 51A First ratchet tooth 51B Second ratchet tooth 55 One-way valve 56 Protruding protrusion T Puncture repair liquid

Claims (5)

A bottle container containing puncture repair liquid and an extraction cap attached to its mouth,
And the extraction cap is
Connecting means for connecting and fixing the extraction cap to a compressor;
A first flow path for taking compressed air from the compressor into the bottle container;
A second flow path for sequentially taking out puncture repair liquid and compressed air from the bottle container by taking in compressed air;
A bottle unit comprising first and second closing means for closing the first and second flow paths in a state before connection by the connection means,
The extraction cap is
A barrel part having an upper end attached to the mouth part of the bottle container and having a bottom part closed at the bottom part of the cylindrical part having an inner hole connected to the bottle container, rising from the bottom part concentrically with the cylindrical part and A cap body having an air supply pipe portion having a central hole forming a first flow path;
And the air supply pipe part is provided with a sheath pipe that is slidably fitted up and down so as to be slidable up and down, and pushed upward in connection with the connection by the connection means,
The first closing means includes an inner lid that is fitted to an upper end portion of the air supply pipe portion and closes the first flow path,
The inner lid is pushed up by the pushed-up sheath tube, disengages from the upper end portion of the air supply tube portion, and opens the first flow path,
In addition, a bottle unit for puncture repair is characterized in that a projecting projection for pushing up the inner lid is provided in a step shape on the upper end surface of the sheath tube.   2. The bottle unit for puncture repair according to claim 1, wherein the protruding protrusion has a protruding height from the upper end surface of 1 to 10 mm.   3. The puncture repairer according to claim 1, wherein the push-up protrusion is formed in an angle range in which an angle θ centering on a center point of the sheath pipe is 90 ° or less in the upper end surface. Bottle unit. The mouth of the bottle container is screwed into the inner hole of the cap body,
The first ratchet teeth are formed in the mouth portion, and the second ratchet teeth are formed in the inner hole so as to mesh with each other only in the anti-screwing rotation direction and stop. The bottle unit for puncture repair in any one of -3. The upper end of the air supply pipe is positioned below the level of the puncture repair liquid, and a one-way valve for preventing the backflow of the puncture repair liquid from the bottle container is disposed in the first flow path. The bottle unit for puncture repair according to any one of claims 1 to 4, wherein:

Images