Abstract:
By the present invention, an inner lid is easily removed by upward thrusting of a sheath tube while detachment of the inner lid during storage is suppressed. An extraction cap is provided with: a cap body provided with a barrel part, a top-end part of which attaches to a mouth of a bottle container, and an air supply tube standing from a bottom portion of the barrel part and forming a first flow channel; and a sheath tube arranged and retained around an exterior of the air supply tube so as to be able to slide up and down. An inner lid is fitted on a top-end part of the air supply tube. An annular first retaining protrusion extending in the circumferential direction is formed on an external peripheral surface of the air supply tube, and a second retaining protrusion retained by the first retaining protrusion and comprising a plurality of retaining protrusions arranged at intervals in the circumferential direction is formed on an internal peripheral surface of the inner lid.

Description:
TECHNICAL FIELD 
       [0001]    The present invention relates to a bottle unit for puncture repair to repair a punctured tire emergency by injecting a puncture repair liquid and compressed air sequentially thereto. 
       BACKGROUND ART 
       [0002]    For example, the following patent document 1 discloses a bottle unit for puncture repair (c) including a bottle container (a) and an extraction cap (b) attached to the mouth portion of the bottle container, as illustrated in  FIG. 12 . 
         [0003]    The extraction cap (b) includes a coupling means (e), a first flow channel (f), a second flow channel (f 2 ), a first closing means (g 1 ), and a second closing means (g 2 ). The coupling means (e) can couple the extraction cap (b) and a compressor (d). The first flow channel (f 1 ) can take in a compressed air into the bottle container (a) from the compressor (d). The second flow channel (f 2 ) can extract a puncture repair liquid and the compressed air sequentially from the bottle container (a) by an intake compressed air. The first and second closing means (g 1 ) and (g 2 ) close the first and second flow channels (f 1 ) and (f 2 ) respectively in a pre-coupling state. 
         [0004]    The first flow channel (f 1 ) is formed as a central bore (h 1 ) of a blast pipe (h) whose lower end is connectable to the compressor (d). A sheath pipe (i) is supported by the blast pipe (h) slidably in a vertical direction. The first closing means (g 1 ) is configured to an inner lid (j) attached to an upper end of the blast pipe (h). 
         [0005]    When the extraction cap (b) is coupled to the compressor (d), the sheath pipe (i) is pushed up by the compressor (d) where the lower end of the sheath pipe (i) comes into contact with the compressor (d). At this time, as illustrated in  FIGS. 13A and 13B , the inner lid (j) is also pushed up by the sheath pipe (i), and then a locking projection (ja) of the inner lid (j) gets over a locking projection (ha) of the blast pipe (h). Thus, the inner lid (j) comes off from the blast pipe (h) to open the first flow channel (f 1 ). 
         [0006]    In the inner lid (j), however, the locking projection (ja) has an annular shape continuously in a circumferential direction, and the inner lid (j) is pushed up horizontally by the sheath pipe (i). Thus, it is necessary to be greatly deformed the inner lid (j) as a whole in order that the locking projection (ja) gets over the locking projection (ha). That is, a large pushing force to remove the inner lid (j) is necessary and the operability deteriorates when coupling. In particular, since the inner lid (j) will harden due to a low temperature when a puncture is repaired in a condition below the freezing point or a very low-temperature condition equal to or less than minus 30 degrees C., there will be arisen another problem that the inner lid (j) is not removed. 
         [0007]    When lowering the heights (ja) and (ha) of the locking projections in order to help getting over them, the inner lid (j) may be removed due to vibration during storage and it may lead a risk of leaking out of the puncture repair liquid. 
       CITATION LIST 
     Patent Literature 
       [0008]    Patent document 1: Japanese Unexamined Patent Application publication No. 2013-67013 
       SUMMARY OF INVENTION 
     Technical Problem 
       [0009]    The present invention has an object to provide a bottle unit for puncture repair kit capable of removing the inner lid easily by a push-up action of the sheath pipe, while preventing the inner lid being removed during storage. 
       Solution to Problem 
       [0010]    The first invention provides a bottle unit for puncture repair including a bottle container containing a puncture repair liquid, and an extraction cap being attached to a mouth portion of the bottle container, the extraction cap including a coupling means for coupling the extraction cap and a compressor to be secured to each other, a first flow channel for taking in a compressed air from the compressor into the bottle container, a second flow channel for extracting the puncture repair liquid and the compressed air sequentially from the bottle container by an intake compressed air, and a first closing means and a second closing means for respectively closing the first flow channel and the second flow channel in a pre-coupling state by attained the coupling means. The extraction cap further includes a cap main body and a sheath pipe. The cap main body includes a barrel portion including an upper end connected to the mouth portion of the bottle container, a lower end closed by a bottom, a tubular portion between the upper end and the lower end having an inner hole communicated with an inside of the bottle container, and a blast pipe extending upwardly from the bottom concentrically with the tubular portion and including a central bore to form the first flow channel. The sheath pipe is held by the blast pipe vertically in slidable manner, wherein the sheath pipe is pushed up upon connection of the coupling means. The first closing means includes an inner lid detachably attached to an upper end of the blast pipe to close the first flow channel so that the inner lid is detached from the blast pipe to open the first flow channel when the inner lid is pushed up by the sheath pipe. The blast pipe includes a first locking projection configured to an annular projection that protrudes in a small height from an outer surface of the blast pipe and extends continuously in a circumferential direction. The inner lid includes a second locking projection that protrudes in a small height from an inner surface of the inner lid and engages with the first locking projection, wherein the second locking projection includes a plurality of locking-projections arranged in the circumferential direction apart from one another. 
         [0011]    The second invention provides a bottle unit for puncture repair including a bottle container containing a puncture repair liquid, and an extraction cap being attached to a mouth portion of the bottle container. The extraction cap includes a coupling means for coupling the extraction cap and a compressor to be secured to each other, a first flow channel for taking in a compressed air from the compressor into the bottle container, a second flow channel for extracting the puncture repair liquid and the compressed air sequentially from the bottle container by an intake compressed air, and a first closing means and a second closing means for respectively closing the first flow channel and the second flow channel in a pre-coupling state by attained the coupling means. The extraction cap further includes a cap main body and a sheath pipe. The cap main body including a barrel portion including an upper end connected to the mouth portion of the bottle container, a lower end closed by a bottom, a tubular portion between the upper end and the lower end having an inner hole communicated with an inside of the bottle container, and a blast pipe extending upwardly from the bottom concentrically with the tubular portion and including a central bore to form the first flow channel. The sheath pipe is held by the blast pipe vertically in slidable manner, wherein the sheath pipe is pushed up upon connection of the coupling means. The first closing means includes an inner lid detachably attached to an upper end of the blast pipe to close the first flow channel so that the inner lid is detached from the blast pipe to open the first flow channel when the inner lid is pushed up by the sheath pipe. The blast pipe includes a first locking projection configured to an annular projection that protrudes in a small height from an outer surface of the blast pipe and extends continuously in a circumferential direction. The sheath pipe includes a push-up projection on the upper end surface. 
       Advantageous Effects of Invention 
       [0012]    In the first invention, the first locking projection provided on the blast pipe is formed as an annular protrusion extending continuously in the circumferential direction. In contrast, the second locking projection provided on the inner lid is formed as a plurality of locking projections which are arranged at a distance in the circumferential direction apart from one another. 
         [0013]    As a result, it is possible to remove the inner lid easily. Specifically, the second locking projection is divided into a plurality of locking projections. Thus, it is not necessary to be deformed the inner lid as a whole greatly and evenly in a radial direction as the conventional art. Accordingly, it is possible to remove the inner lid by a partial deformation in which each of the locking projections can get over the first locking projection. Furthermore, since the thickness of the inner lid between a pair of circumferentially adjacent locking projections become thinner, the partial deformation above may be easily provided. 
         [0014]    Through these effects, it is possible to remove the inner lid easily with less push-up force, while preventing the inner lid from being removed during storage. 
         [0015]    In the second invention, the upper end of the sheath pipe is provided with a push-up projection projecting in a step like manner. Thus, the effect similar to that a lid is taken off from a bottle by a bottle opener is obtained, for example. Specifically, the contact area between the sheath pipe and the inner lid, at the time of a push-up action by the push-up projections, is reduced. When the push-up force is the same, since the push-up pressure acting on the inner lid may be increased according to reduction of the contact area, it is possible to deform a part of the inner lid. Furthermore, it is possible to remove the inner lid by the deformation of only a part of the inner lid. 
         [0016]    Through these effects, it is possible to remove the inner lid easily with less push-up force, while preventing the inner lid from being removed during storage. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0017]      FIG. 1  is a cross-sectional view illustrating a bottle unit under a pre-coupling state in accordance with the first invention. 
           [0018]      FIG. 2  is a partial enlarged cross-sectional view illustrating a main portion of the bottle unit in accordance with the first invention. 
           [0019]      FIG. 3  is a partial cross-sectional view illustrating a coupling state between the bottle unit and a compressor. 
           [0020]      FIGS. 4A and 4B  are a cross-sectional view and a bottom view illustrating an inner lid, respectively. 
           [0021]      FIGS. 5A and 5B  are partial cross-sectional views illustrating a process where the inner lid is being removed from the blast pipe by a sheath pipe. 
           [0022]      FIG. 6A  is a cross-sectional view and a bottom view of the bottle container, and  FIG. 6B  is a top view and a cross-sectional view of the barrel portion. 
           [0023]      FIG. 7  is an enlarged cross-sectional view of first and second ratchet teeth. 
           [0024]      FIG. 8  is a cross-sectional view illustrating an extraction cap in accordance with another embodiment. 
           [0025]      FIG. 9  is a cross-sectional view illustrating a major part of the bottle unit in accordance with the second invention. 
           [0026]      FIGS. 10A and 10B  are a plan view and a cross-sectional view illustrating an upper end of the sheath pipe. 
           [0027]      FIGS. 11A and 11B  are partial cross-sectional views illustrating a process where the inner lid is being removed from the blast pipe by the sheath pipe. 
           [0028]      FIG. 12  is a cross-sectional view illustrating a conventional bottle unit for puncture repair kit. 
           [0029]      FIGS. 13A and 13B  are partial cross-sectional views illustrating a process where the inner lid is being removed from the blast pipe by the sheath pipe. 
       
    
    
     DESCRIPTION OF EMBODIMENTS 
       [0030]    Hereinafter, embodiments of the present invention will be described in detail.  FIG. 1  illustrates a cross-sectional view of a puncture repair kit (K) using a bottle unit  1  of an embodiment in accordance with the first invention. The puncture repair kit (K) includes the bottle unit  1  and a compressor  3 .  FIG. 1  illustrates a pre-coupling state Y 1  of the bottle unit  1  and the compressor  3 . 
         [0031]    The compressor  3  includes a well known movable portion including a motor, a piston and a cylinder, for example. In this present embodiment, a compressed air discharge port  6  for discharging the compressed air is formed on an upper surface  3 S of the compressor  3 . 
         [0032]    The bottle unit  1  includes a bottle container  4  and an extraction cap  5  attached to a mouth portion  4 A of the bottle container  4 . The bottle container  4  includes a container portion  4 B containing a puncture repair liquid T and the mouth portion  4 A having a small-diameter cylindrical shape and protruding from a lower end of the container portion. 
         [0033]    The extraction cap  5  includes a coupling means  7 , a first flow channel  8 , a second flow channel  9 , a first closing means  12  and a second closing means  13 . The coupling means  7  can couple the extraction cap  5  and the compressor  3 . The first flow channel  8  can take in a compressed air from the compressor  3  into the bottle container. The second flow channel  9  can extract the puncture repair liquid T and the compressed air sequentially from the bottle container  4  by an intake compressed air. The first and second closing means  12  and  13  can close the first flow channel  8  and the second flow channel  9  respectively in the pre-coupling state Y 1 . 
         [0034]    As illustrated in  FIG. 2 , the extraction cap  5  is configured to include a cap main body  14  and a sheath pipe  15 . The cap main body  14  includes a barrel portion  16  and a blast pipe  17 . The barrel portion  16  includes a tubular portion  16 A having an upper end connected to the mouth portion  4 A of the bottle container  4  through a seal member  21  and a lower end closed by a bottom  16 B of the tubular portion  16 A. The blast pipe  17  extends upwardly from the bottom. The tubular portion  16 A includes an inner hole  16 H communicated with an inside of the bottle container  4 . 
         [0035]    In this embodiment, the mouth portion  4 A is screwed into the inner hole  16 H of the tubular portion  16 A, for example. Specifically, as illustrated in  FIGS. 6A and 6B , a male screw portion  50 A is formed on an outer surface of the mouth portion  4 A of the bottle container  4 , and a female screw portion  50 B which is engageable with the male screw portion  50 A is formed on an upper inner surface of the inner hole  16 H of the cap main body  14 . Furthermore, in this embodiment, a locking means  51  having a ratchet mechanism is provided to prevent leaking out of the puncture repair liquid T due to loosening of the screws by vibration during storage. 
         [0036]    The locking means  51  in accordance with the present embodiment includes a first ratchet tooth  51 A provided on the outer surface of the mouth portion  4 A at an upper side of the male screw portion  50 A, and a second ratchet tooth  51 B provided on an inner surface of the inner hole  16 H at an upper side of the female screw portion  50 B. As illustrated in  FIG. 7 , the first ratchet tooth  51 A and the second ratchet tooth  51 B include radially extending locking surfaces A 1  and B 1  respectively on their circumferential ends in an anti-screwed rotational direction R to engage with each other. Thus, the first ratchet tooth  51 A and the second ratchet tooth  51 B can be engaged with one another in the anti-screwed rotational direction R to prevent loosening. On the other hand, climbable surfaces A 2  and B 2 , e.g. a smooth slope or arc-shaped surface, are provided on the circumferential ends of the respective teeth in the screwed rotational direction where the ratchet teeth can get over with one another to turn. When the heights Ah and Bh of the first and second ratchet teeth  51 A and  51 B respectively are excessively small, locking may be insufficient. On the other hand, when the heights are excessively large, a large force is necessary to get over teeth and operability tends to be worse. Thus, the heights Ah and Bb are preferably in a range of from 1 to 10 mm. 
         [0037]    As illustrated in  FIG. 2 , the blast pipe  17  extends upwardly from the bottom  16 B concentric with the tubular portion  16 A, and has a central bore  17 H forming the first flow channel  8 . 
         [0038]    In this embodiment, the upper end of the blast pipe  17  is located downward of a liquid surface of the puncture repair liquid T, and the first flow channel  8  is provided with a one-way valve  55  to prevent back-flow of the puncture repair liquid T from the bottle container  4 . The one-way valve  55  is configured to include a step-like valve seat  55   a  formed in the first flow channel  8 , a ball valve  55   b  for opening and closing the valve seat portion  55   a , and a spring for pressing the ball valve  55   b  to the valve seat portion  55   a.    
         [0039]    Furthermore, the barrel portion  16  includes an air inlet portion  10  communicating with the first flow channel  8 . The air inlet portion  10 , in this embodiment, is directly connected to the compressed air discharge port  6  of the compressor  3  without passing through a horse or the like. Specifically, the one of the compressed air discharge port  6  and the air inlet portion  10  is formed as a connection nozzle  25  protruding toward the other, and the other is formed as a nozzle receiver  26  for coupling the connection nozzle  25 . In this embodiment, the air inlet portion  10  is formed as the connection nozzle  25  protruding downward from the bottom  16 B, and the compressed air discharge port  6  is formed as the nozzle receiver  26 , for example. 
         [0040]    The coupling means  7  can fix the bottle unit  1  on the compressor  3  integrally at the puncture repair site when repairing puncture, thereby preventing the fall down of the bottle unit  1  during puncture repair work. The coupling means  7  according to the embodiment includes a plurality of, for example of two or three locking claws  30  extending downward from the bottom  16 B. The locking claws  30  includes a main portion  30 A connected to the bottom  16 B and an approximately right triangular shaped hook portion  30 B provided on a lower end of the main portion  30 A so as to protrude outwardly. An engaging portion  31  for fitting the coupling means  7  is provided on the side of the compressor  3 . The engaging portion  31  according to the present embodiment includes an engaging hole  31 A for engaging with and retaining the hook portion  30 B. The engaging hole  31 A according to the present embodiment is formed on a frame  32  formed with the nozzle receiver  26  integrally. 
         [0041]    Next, the sheath pipe  15  is held by the blast pipe  17  vertically in slidable manner. The sheath pipe  15  is formed with a push-up lever  19  that pushes up the sheath pipe  15  upwardly upon connection of the coupling means  7 . The push-up lever  19  includes a plurality of, for example two or three projecting pieces protruding from the lower end of the sheath pipe  15  passing through the bottom  16 B. Note that the bottom  16 B is formed a through hole  16 Bh through which the push-up lever  19  passes. In this embodiment, the pushing-up lever  19  can come into contact with the upper surface  3 S of the compressor  3 , and then pushes up the sheath pipe  15  upwardly upon connection of the coupling means  7 . 
         [0042]    The sheath pipe  15  is integrally provided with the second closing means  13  to close the second flow channel  9 . The first closing means  12  is provided on the upper end  17 E of the blast pipe  17  to close the first flow channel  8 . The first and second closing means  12  and  13  are operated by a push-up action of the sheath pipe  15  so as to open the first and second flow channels  8  and  9 , respectively. 
         [0043]    The second flow channel  9  includes an annular vertical passage  9 A formed by a gap between the sheath pipe  15  and the tubular portion  16  and a lateral passage  9 B communicated with the vertical passage  9 A at an intersection point P and extending from the intersection point P to a distal opening  11 A of an outlet port  11 . The outlet port  11  protrudes radially outwardly from the tubular portion  16 A as a coupling portion for a hose  40  for injecting the puncture repair liquid T and a compressed air to the tire. The hose  40  is stored by winding around the tubular portion  16 A, for example. 
         [0044]    As illustrated in  FIG. 3 , the inner wall W of the tubular portion  16 A includes a large-diameter wall portion Wa where the inner hole  16 H forms a large diameter and a small-diameter wall portion We continuing the large diameter wall portion Wa on the lower side via a step portion Wb. The step portion Wb is formed upward of the intersection point P. Thus, the small diameter wall We is further divided into an upper small-diameter wall portion WcU between the step portion Wb and the intersection point P, and a lower small-diameter wall portion WcL located lower than the intersection point P. 
         [0045]    The second closing means  13  according to the present embodiment includes an upper seal member  20 U and a lower seal member  20 L which are attached to the sheath pipe  15  and move together with the sheath pipe  15 . The seal members  20 U and  20 L are a so-called O-ring held by a circumferential grooves formed on the outer periphery of the sheath pipe  15 . In the second closing means  13 , the upper seal member  20 U is in contact with the upper small-diameter wall portion WcU so as to close the second flow channel  9  in the pre-coupling state Y 1 , as illustrated in  FIG. 2 . Thus, it can prevent that the puncture repair liquid T leaks out toward the outlet port  11 . Furthermore, in a coupling state Y 2 , the upper seal member  20 U can move upwardly beyond the step portion Wb by the pushed up action of the sheath pipe  15  caused by the push-up lever  19 , as illustrated in  FIG. 3 . At that time, a gap G is made between the upper seal member  20 U and the large-diameter wall portion Wa so that the second flow channel  9  is opened. 
         [0046]    The first closing means  12  is configured as an inner lid  18  that is fitted on the upper end  17 E of the blast pipe  17 . When the inner lid  18  is pushed up by the sheath pipe  15 , it is detached from the upper end  17 E so as to open the first flow channel  8 . 
         [0047]    As illustrated in  FIGS. 5A and 5B , the upper end  17 E of the blast pipe  17  is provided with a first locking projection  33  that protrudes in a small height from an outer surface of the blast pipe  17 . Furthermore, the inner lid  18  is provided with a second locking projection  34  that protrudes in a small height from an inner surface of the inner lid  18  and can engage with the first locking projection  33 . 
         [0048]    The first locking projection  33  is formed as an annular projection  33 A extending continuously in the circumferential direction. On the other hand, the second locking projection  34  is formed as a plurality of locking projections  34 A which is arranged in the circumferential direction apart from one another. As illustrated in  FIGS. 4A and 4B , preferably, the number of the locking projections  34 A is an even number (e.g. 2, 4, etc.), and a pair of locking-protrusions  34 A are arranged so as to face with each other on a radial line X of the inner lid  18 . Thus, stabilization of engagement is achieved, and it can suppress that the engagement is released due to vibration or the like. For the same purpose, a circumferential width of the respective locking projections  34 A which corresponds to a central angle θ around the center point of the inner lid  18  is preferably of from 5 to 45 degrees. 
         [0049]    Although the present embodiment exemplifies an approximately V-shape for the cross sectional shape for the annular projection  33 A and locking projections  34 A, various cross-sectional shapes such as a semi-circular shape or the like may alternatively be employed. In the pre-coupling state Y 1 , the upper end of the sheath pipe  15  is located downward of the inner lid  18 . Furthermore, a seal ring  36  such as O-ring is attached to the blast pipe  17  to seal a gap between the sheath pipe  15  and the blast pipe  17 . In the pre-coupling state Y 1 , the second locking projection  34  engages with the first locking projection  33 . When the sheath pipe  15  is pushed up, the inner lid  18  elastically deforms such that the second locking projection  34  gets over the first locking projection  33 , and then the inner lid  18  is detached. 
         [0050]    As described above, the second locking projection  34  is divided into a plurality of locking projections  34 A. Thus, it is not necessary to be deformed the inner lid  18  as a whole greatly and evenly in the radial direction. Accordingly, it is possible to remove the inner lid  18  by a partial deformation in which each of the locking projections  34 A can get over the first locking projection  33 . Furthermore, since the thickness of the inner lid  18  between a pair of circumferentially adjacent locking projections  34 A and  34 A becomes thinner, the partial deformation above may be easily provided. Through these effects, it is possible to remove the inner lid  18  easily with less push-up force, while preventing the inner lid  18  from being removed during storage. 
         [0051]    When the central angle θ is less than 5 degrees, the locking projections  34 A may easily come off due to its low locking force. Conversely, when the angle is more than 45 degrees, it may be difficult to detach. 
         [0052]      FIG. 8  illustrates the extraction cap  5  in accordance with another embodiment. In the extraction cap  5  in accordance with the present embodiment, the air inlet portion  10  is connected to the compressed air discharge port  6  (not illustrated) through a hose  41 . That is, it does not provide a direct connection. Specifically, the air inlet portion  10  in this embodiment is configured as a coupling portion that protrudes radially outward from the tubular portion  16 A to which one end of the hose  41  having the other end to be connected to the compressor  3  is connectable. The inner bore  10 H of the air inlet portion  10  is communicated with the central bore  17 H of the blast pipe  17 . In the extraction cap  5  of the present embodiment, the compressor  3  may be used for not only repairing puncture but inflating an air matt, bladder and the like. 
         [0053]      FIG. 9  illustrates a cross-sectional view of a major part of the bottle unit  1  in accordance with the second invention. The bottle unit  1  according to the second invention is different from the bottle unit  1  according to the first invention in the sheath pipe  15 . 
         [0054]    Specifically, in the second invention, as illustrated in  FIGS. 10A and 10B , the upper end surface  15 S of the sheath pipe  15  is provided with a push-up projection  56  in a step shape in this embodiment. Preferably, the push-up projection  56  is formed in a central angle α equal to or less than 90 degrees around the center point n of the sheath pipe  15 . 
         [0055]    In also the second invention, as illustrated in  FIGS. 11A and 11B , the upper end  17 E of the blast pipe  17  is provided with the first locking projection  33  protruding in a small height from the outer surface of the blast pipe  17 . Furthermore, the inner lid  18  is provided with the second locking projection  34  that protrudes in a small height from the inner surface of the inner lid  18  to be able engages with the first locking projection  33 . The first locking projection  33  is formed as an annular projection  33 A extending continuously in the circumferential direction. In the present embodiment, the second locking projection  34 , in the same manner as the first invention, is formed as a plurality of locking projections  34 A which is arranged in the circumferential direction apart from one another. Alternatively, in the second invention, the second locking projection  34  may be formed as an annular projection extending continuously in the circumferential direction. 
         [0056]    In the second invention, the effect similar to a bottle opener is obtained by providing the push-up projection  56 , and thus it is possible to take off the inner lid  18  easily with less force. Specifically, the contact area between the sheath pipe  15  and the inner lid  18 , at the time of the pushed up action, is reduced. When the push-up force is the same, since the push-up pressure acting on the inner lid  18  may be increased according to reduction of the contact area, it is possible to deform a part of the inner lid  18 . Conventionally, a large force was necessary to be greatly deformed the inner lid  18  as a whole (enlarged in diameter) when removing. On the other hand, in the second invention, since only a part of the inner lid  18  deforms when removing, the force same as the conventional one is not necessary. Through these effects, it is possible to remove the inner lid  18  easily with less push-up force, while preventing the inner lid  18  from being removed during storage. Note that as in this embodiment, when the second locking projection  34  is formed as a plurality of locking projections  34 A, it is possible to remove the inner lid  18  more easily. 
         [0057]    Preferably, the height H of the push-up projection  56  from the upper end surface  15 S is in a range of from 1 to 10 mm. When it is less than 1 mm, it may be difficult to achieve the above-mentioned effect. Also, when the height is more than 10 mm, it may be difficult to achieve the above-mentioned effect. In addition, the push-up projection  56  may be damaged when pushing up due to lack of rigidity of the push-up projection  56 . In view of the above, the lower limit of the height H is preferably equal to or more than 2 mm, and the upper limit is preferably equal to or less than 5 mm. 
         [0058]    In the second invention, as illustrated in  FIG. 8 , the air inlet portion  10  of the extraction cap  5  may be configured to couple with the compressed air discharge port of the compressor  3  through the hose  41 . 
         [0059]    While the embodiments in accordance with the present invention have been described in detail, the present invention is not limited to the illustrated embodiments, but can be modified and carried out in various aspects. 
       Example 
       [0060]    To confirm effects of the first invention, the bottle units configured as illustrated in  FIG. 1  were manufactured based on the detail shown in Table 1, and then removing performance of the inner lid of each sample was tested. Each of the samples of the bottle units has the same configuration except the configuration of the second locking projection provided on an inner surface of the inner lid. The common specification is as follows: 
         [0061]    Height of first locking projection (annular projection) of blast pipe: 5.0 mm 
         [0062]    Height of second locking projection of inner lid: 0.25 mm 
         [0063]    Material of inner lid: low density polyethylene (LDPE), thickness of about 1.5 mm 
         [0064]    Inner diameter of lid inner: φ11.0 mm 
         [0065]    Test Method: 
         [0066]    (A) Test at Room Temperature Environment: 
         [0067]    After each bottle unit was stored for 24 hours at room temperature environment (25 degrees C.), it was immediately mounted to the compressor by pushing on. Then, pushing force at the time the inner lid comes off from the blast pipe (i.e., the push-up force of the sheath pipe) was measured. 
         [0068]    (B) Test at Very Low Temperature Environment: 
         [0069]    After each bottle unit was stored for 24 hours at very low temperature environment (−40 degrees C.), it was immediately mounted to the compressor by pushing on. Then, pushing force at the time the inner lid comes off from the blast pipe (i.e., the push-up force of the sheath pipe) was measured. 
         [0070]    (C) Vibration Test: 
         [0071]    While giving vibration to each bottle unit under the following conditions, a checker confirmed whether the inner lid comes off from the blast pipe or not by the naked eye. The test was conducted on both upright and lateral conditions of the bottle unit at environmental temperatures of 80 degrees C. and −45 degrees C. Then, the test result were indicated “Passed” when the inner lid was not removed and “Failed” when the inner lid was removed. 
         [0072]    Frequency: 11 Hz 
         [0073]    Amplitude level: 59.8 m/s 2    
         [0074]    Vibration time: 25.3 hours 
         [0000]    
       
         
               
               
               
               
               
               
               
               
               
             
               
               
               
               
               
               
               
               
               
             
           
               
                   
                 TABLE 1 
               
               
                   
                   
               
               
                   
                 Ref. 1 
                 Ref. 2 
                 Ex. A1 
                 Ex. A2 
                 Ex. A3 
                 Ex. A4 
                 Ex. A5 
                 Ex. A6 
               
               
                   
                   
               
             
             
               
                   
               
             
          
           
               
                 Second locking projection 
                 Presence 
                 None 
                 Presence 
                 Presence 
                 Presence 
                 Presence 
                 Presence 
                 Presence 
               
               
                   
                 (annular 
               
               
                   
                 projection) 
               
               
                 Number of locking projection 
                 — 
                 0 
                 2 
                 2 
                 2 
                 4 
                 4 
                 4 
               
               
                 Angle of locking projection θ (deg.) 
                 360 
                 0 
                 5 
                 45 
                 50 
                 5 
                 45 
                 50 
               
               
                 Push-up force (kgf) 
               
               
                 At room temperature 
                 9.3 
                 0.1 
                 1 
                 4 
                 6.9 
                 2 
                 5.8 
                 8.6 
               
               
                 At very low temperature 
                 44.8 
                 0.2 
                 5 
                 20 
                 30 
                 15 
                 35 
                 40 
               
               
                 Vibration test 
                 Passed 
                 Failed 
                 Passed 
                 Passed 
                 Passed 
                 Passed 
                 Passed 
                 Passed 
               
               
                   
               
             
          
         
       
     
         [0075]    As shown in Table 1, it is confirmed that the samples according to the first invention were able to remove the inner lid with less pushing force (i.e., a push-up force by the sheath pipe) while preventing removing due to vibration at both room temperature (25 degrees C.) and very low temperature (−40 degrees C.) environments. 
         [0076]    To confirm effects of the second invention, the bottle units configured as illustrated in  FIG. 9  were manufactured based on the detail shown in Table 2, and then removing performance of the inner lid of each sample was tested. Each of the samples of the bottle units has the same configuration except the configuration of the push-up projection provided on the upper end of the sheath pipe. The common specification is as follows: 
         [0077]    Height of first locking projection (annular projection) of blast pipe: 5.0 mm 
         [0078]    Height of second locking projection (annular projection) of inner lid: 0.25 mm 
         [0079]    Material of inner lid: low density polyethylene (LDPE), thickness of about 1.5 mm 
         [0080]    Inner diameter of lid inner: φ11.0 mm 
         [0081]    The test method is the same as the above. 
         [0000]    
       
         
               
               
               
               
               
               
               
               
               
               
               
             
               
               
               
               
               
               
               
               
               
               
               
             
           
               
                   
                 TABLE 2 
               
               
                   
                   
               
               
                   
                 Ref. 1 
                 Ex. B1 
                 Ex. B2 
                 Ex. B3 
                 Ex. B4 
                 Ex. B5 
                 Ex. B6 
                 Ex. B7 
                 Ex. B8 
                 Ex. B9 
               
               
                   
                   
               
             
             
               
                   
               
             
          
           
               
                 Push-up projection 
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
               
               
                 Projection height H (mm) 
                 0 
                 1 
                 2 
                 3 
                 5 
                 10 
                 11 
                 5 
                 5 
                 5 
               
               
                 Angle θ (deg.) 
                 — 
                 60 
                 60 
                 60 
                 60 
                 60 
                 60 
                 45 
                 90 
                 120 
               
               
                 Push-up force (kgf) 
               
               
                 At room temperature 
                 8.9 
                 6.3 
                 4.3 
                 4 
                 4 
                 3 
                 3 
                 4 
                 4.2 
                 4.3 
               
               
                 At very low temperature 
                 42.7 
                 35.1 
                 22 
                 14.7 
                 13.9 
                 10.9 
                 11 
                 13.5 
                 15 
                 22.2 
               
               
                   
               
             
          
         
       
     
         [0082]    As shown in Table 2, it is confirmed that the samples according to the second invention were able to remove the inner lid with less pushing force (i.e., a push-up force by the sheath pipe) while preventing removing due to vibration at both room temperature (25 degrees C.) and very low temperature (−40 degrees C.) environments. 
       REFERENCE SIGNS LIST 
       [0000]    
       
         
           
               1  Bottle unit 
               3  Compressor 
               4  Bottle container 
               4 A Mouth portion 
               5  Extraction cap 
               7  Coupling means 
               8  First flow channel 
               9  Second flow channel 
               12  First closing means 
               13  Second closing means 
               14  Cap man body 
               15  Sheath pipe 
               15 S Upper end surface 
               16  Barrel portion 
               16 H Inner hole 
               16 A Tubular portion 
               16 B Bottom 
               17  Blast pipe 
               18  Inner lid 
               17 H Central bore 
               33  First locking projection 
               33 A Annular projection 
               34  Second locking projection 
               34 A Locking projection 
               51 A First ratchet tooth 
               51 B Second ratchet tooth 
               55  One-way valve 
               56  Push-up projection 
             T Puncture repair liquid