Spout

Abstract

To provide a spout with which the completion of closing of a cap body can be easily and sensuously recognized.SOLUTION: The spout includes a spout body 3 that is attached to a container, and a detachable cap that opens and closes the spout body 3. The cap has a cap body 21 that is connected to the spout body 3 via a screw so as to be rotatable in the opening and closing direction, and a sealing strip 23 that is attached to the cap body 21 via a breakable bridge 22. A fitting protrusion 33 is provided on the sealing strip 23, and a fitting recess 34 that can fit into the fitting protrusion 33 at a closing completion position 29 is provided on the cap body 21. A sliding contact area 40 is formed closer to a closing direction 19 of the cap body 21 than the fitting recess 34. When the cap body 21 is rotated in the closing direction 19, the cap body slides against and contacts with the fitting protrusion 33 of the sealing strip 23 that has separated from the cap body 21 in the sliding contact area 40.SELECTED DRAWING: Figure 8

Description

[Technical Field]

[0001] The present invention relates to a spout that includes a spout body that is attached to a container and a detachable cap that opens and closes the spout body. [Background technology]

[0002] Conventionally, for example, the following Patent Document discloses a screw cap consisting of an inner stopper attached to a container and a cap screwed onto the inner stopper. A sound-emitting protrusion is provided on the upper wall of the inner stopper. A sound-emitting member that engages with the sound-emitting protrusion to produce sound is provided on the inside of the cap. The sound-emitting member abuts against the sound-emitting protrusion just before the cap is completely tightened, and at the same time, it overcomes the sound-emitting protrusion and vibrates, producing sound. This allows the user to intuitively recognize that the cap is completely tightened. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 6827682 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the conventional screw cap, it is necessary to secure space for the sound-producing protrusion on the inside plug and space for the sound-producing member on the cap, which makes the screw cap larger in the radial direction. In contrast, since the outer diameter of a spout is generally small, it is difficult to secure space for the sound-producing protrusion and sound-producing member, which makes it difficult for users to intuitively recognize when the cap is closed. An object of the present invention is to provide a spout that allows a user to easily recognize intuitively that the cap body has been completely closed. [Means for solving the problem]

[0005] In order to achieve the above object, the first invention provides a spout comprising a spout body that is attached to a container and a detachable cap that opens and closes the spout body, The cap has a cap body that is connected to the spout body via a screw so as to be rotatable in an opening and closing direction, and a sealing band that is provided on the cap body via a breakable bridge, The seal band is restricted from rotating in the opening and closing direction relative to the spout body. The sealing strip is provided with a mating protrusion, a fitting recess that can be fitted into the fitting protrusion at the closing position is provided on the cap body; A sliding contact area is formed on the closing direction side of the fitting recess of the cap body, When the cap body is rotated in the closing direction, the sliding contact area comes into sliding contact with the fitting protrusion of the sealing strip that has separated from the cap body.

[0006] According to this, when the cap body is first opened, the bridge breaks when the cap body is rotated in the opening direction relative to the spout body, and the cap body separates from the sealing strip and is removed from the spout body. As a result, the spout is opened, and the separated sealing strip remains on the spout body.

[0007] If the bridge is broken as described above, it is easy to visually tell that the spout has already been opened, or if the bridge is not broken, it is easy to visually tell that the spout has never been opened.

[0008] After opening the spout, the cap body is rotated in the closing direction relative to the spout body, causing the cap body to be tightened onto the spout body, and in the sliding contact area just before reaching the closed position, the cap body slides against the mating convex portion of the sealing band, and then, while still sliding, reaches the closed position, where the mating concave portion fits into the mating convex portion, and the spout is closed.

[0009] In this way, the cap body slides against the mating convex portion of the sealing strip in the sliding contact area, pressing the mating convex portion against the cap body, and then, at the stopper-closing completion position, the mating recess fits into the mating convex portion. Therefore, the mating convex portion is released from the pressing force it received from the cap body in the sliding contact area at the same time that the mating recess reaches the stopper-closing completion position. This causes the mating convex portion to vibrate slightly, and this vibration is transmitted to the cap body. The user can feel the vibration transmitted from the mating convex portion to the cap body as a clicking sensation. This makes it easy to intuitively recognize that the cap body has been completely closed, and prevents the cap body from being overtightened onto the spout body when closing.

[0010] In the spout of the second invention, the fitting protrusion protrudes upward from the sealing band, The fitting recess is recessed upward from the bottom end of the cap body, When the cap body is rotated in the closing direction, the lower end of the cap body comes into sliding contact with the upper end of the fitting protrusion in the sliding contact region.

[0011] According to this, after opening the spout, the cap body is rotated in the closing direction relative to the spout body, whereby the cap body is tightened onto the spout body, and in the sliding contact area just before reaching the closed position, the lower end of the cap body slides against the upper end of the mating convex portion, and then the closed position is reached and the mating concave portion fits into the mating convex portion, thereby closing the spout.

[0012] In the spout of the third invention, a first inclined portion is formed at the end of the fitting protrusion in the closing direction, the first inclined portion being inclined from the upper end of the sealing strip in the opening direction, A second inclined portion inclined from the lower end of the cap body in the opening direction is formed at the end of the fitting recess in the closing direction.

[0013] According to this, when the cap body is opened for the first time, by rotating the cap body in the opening direction relative to the spout body, the second inclined portion of the mating recess abuts against the first inclined portion of the mating protrusion and is guided upward, causing the cap body to move upward and the gap between the cap body and the sealing band to expand vertically, thereby reliably breaking the bridge and separating the cap body from the sealing band.

[0014] The fourth invention is a spout comprising a spout body that is attached to a container and a detachable cap that opens and closes the spout body, The cap has a cap body that is connected to the spout body via a screw so as to be rotatable in an opening and closing direction, and a sealing band that is provided on the cap body via a breakable bridge, The seal band is restricted from rotating in the opening and closing direction relative to the spout body. The sealing strip is provided with a fitting recess, a fitting protrusion that can be fitted into the fitting recess at the capping completion position is provided on the cap body; A sliding contact area is formed on the opening direction side of the fitting recess of the sealing strip, When the cap body is rotated in the closing direction, the fitting protrusion is in sliding contact with the sealing strip that has separated from the cap body in the sliding contact area.

[0015] According to this, when the cap body is first opened, the bridge breaks when the cap body is rotated in the opening direction relative to the spout body, and the cap body separates from the sealing strip and is removed from the spout body. As a result, the spout is opened, and the separated sealing strip remains on the spout body.

[0016] After opening the spout, the cap body is rotated in the closing direction relative to the spout body, whereby the cap body is tightened to the spout body, and the fitting convex portion of the cap body slides against the sealing band in the sliding contact area just before reaching the closing completion position, and then slides against the sealing band until it reaches the closing completion position and fits into the fitting recess, thereby closing the spout.

[0017] In this way, the fitting protrusion of the cap body slides against the sealing band in the sliding contact area, so the fitting protrusion presses against the sealing band, and a reaction force from the sealing band acts on the fitting protrusion. Then, at the complete capping position, the fitting protrusion fits into the fitting recess. Therefore, the fitting protrusion reaches the complete capping position and is released from the reaction force it received from the sealing band in the sliding contact area. This causes the fitting protrusion to vibrate slightly, and this vibration is transmitted to the cap body. The user can feel the vibration transmitted from the fitting protrusion to the cap body as a clicking sensation. This makes it easy to intuitively recognize that the cap body has been completely capped, and prevents the cap body from being overtightened onto the spout body during capping.

[0018] In the spout of the fifth invention, the fitting protrusion protrudes downward from the lower end of the cap body, The mating recess is recessed downward from the top end of the sealing strip, When the cap body is rotated in the closing direction, the lower end of the fitting protrusion comes into sliding contact with the upper end of the sealing strip in the sliding contact area.

[0019] According to this, after opening the spout, the cap body is rotated in the closing direction relative to the spout body, whereby the cap body is tightened onto the spout body, and in the sliding contact area just before reaching the completed closing position, the lower end of the mating convex portion slides against the upper end of the sealing band, and then, when the completed closing position is reached, the mating convex portion fits into the mating recess, and the spout is closed.

[0020] In the spout of the sixth invention, a third inclined portion is formed at an end of the fitting protrusion in the opening direction, the third inclined portion being inclined from the lower end of the cap body in the closing direction, A fourth inclined portion inclined from the upper end of the sealing strip toward the closing direction is formed at the end of the fitting recess in the opening direction.

[0021] According to this, when the cap body is opened for the first time, by rotating the cap body in the opening direction relative to the spout body, the third inclined portion of the mating convex portion abuts against the fourth inclined portion of the mating concave portion and is guided upward, causing the cap body to move upward and the gap between the cap body and the sealing band to expand vertically, thereby causing the bridge to break reliably and separating the cap body from the sealing band.

[0022] In the spout of the seventh invention, the sealing band is a ring that is fitted onto and held on the spout body. [Effects of the Invention]

[0023] As described above, according to the present invention, even in the case of a spout with a small outer diameter, the user can easily intuitively recognize that the cap body has been completely closed, thereby preventing the cap body from being overtightened onto the spout body when closing. [Brief explanation of the drawings]

[0024] [Figure 1] FIG. 1 is a front view of a spout according to a first embodiment of the present invention. [Figure 2] FIG. [Figure 3] FIG. 10 is a plan view of the spout body of the spout of the same embodiment, showing the state in which the sealing strip separated from the cap body remains on the spout body side. [Figure 4] FIG. 10 is a bottom view of the cap body with the sealing strip of the spout separated. [Figure 5] FIG. 10 is an enlarged view of the fitting protrusion of the sealing strip of the spout. [Figure 6] 10 is an enlarged view of the fitting recess of the cap body of the spout according to the first embodiment. [Figure 7] FIG. 10 is a partially enlarged front view showing the state when the cap body of the spout is turned in the closing direction to close the cap. [Figure 8] FIG. 10 is a partially enlarged front view showing the state when the cap body of the spout is turned in the closing direction to close the cap, showing the state in which the cap body is in sliding contact with the fitting protrusion in the sliding contact area. [Figure 9] FIG. 10 is a partially enlarged front view showing the state when the cap body of the spout is rotated in the closing direction to complete the capping. [Figure 10] FIG. 10 is a front view of a spout according to a second embodiment of the present invention. [Figure 11] FIG. 10 is a bottom view of the cap body with the sealing strip of the spout separated. [Figure 12] FIG. 10 is a plan view of the spout body of the spout of the same embodiment, showing the state in which the sealing strip separated from the cap body remains on the spout body side. [Figure 13] FIG. 10 is a partially enlarged front view showing the state when the cap body of the spout is turned in the closing direction to close the cap. [Figure 14] FIG. 10 is a partially enlarged front view showing the state when the cap body of the spout is turned in the closing direction to close the cap, showing the state in which the fitting protrusion is in sliding contact with the sealing strip in the sliding contact area. [Figure 15] FIG. 10 is a partially enlarged front view showing the state when the cap body of the spout is rotated in the closing direction to complete the capping. DETAILED DESCRIPTION OF THE INVENTION

[0025] Hereinafter, embodiments of the present invention will be described with reference to the drawings. (First embodiment)

[0026] In the first embodiment, as shown in Figures 1 and 2, the spout 1 comprises a spout body 3 that is attached to, for example, a bag-shaped container 2, and a removable cap 5 that opens and closes a spout opening 4 formed in the spout body 3.

[0027] Here, the direction of the axis 7 passing through the center of the spout body 3 is defined as the vertical direction 8, the direction perpendicular to the axis 7 is defined as the radial direction 9, and the circumferential direction centered on the axis 7 is defined as the circumferential direction 10 (see Figure 3).

[0028] The spout body 3 has a welded portion 12 for connection to the container 2, and a cylindrical discharge portion 13 erected on the welded portion 12. A male thread 14 and a flange 15 are formed on the outer circumferential surface of the discharge portion 13, and the flange 15 is located below the male thread 14. The spout opening 4 penetrates the welded portion 12 and the discharge portion 13 in the vertical direction 8.

[0029] The cap 5 has a cap body 21 that is fastened to the spout body 3 so as to be freely rotatable in the opening and closing directions 18 and 19 via a male screw 14 and a female screw 17 described later, and a sealing band 23 that is attached to the cap body 21 via a plurality of breakable bridges 22.

[0030] The cap body 21 has a cylindrical body 25 that covers the outer periphery of the discharge portion 13, a circular top plate 26 provided at the upper end of the cylindrical body 25, and a cylindrical seal portion 27 provided inside the cylindrical body 25. The female thread 17 is formed on the inner periphery of the cylindrical body 25, and the top plate 26 covers the upper end of the discharge portion 13 when the male thread 14 and the female thread 17 are screwed together.

[0031] Furthermore, sealing portion 27 hangs down from top plate 26 and can be freely inserted into and removed from spout opening 4 of spout body 3 from above. When cap body 21 is rotated in closing direction 19 relative to spout body 3 and cap body 21 is tightened to complete capping position 29, sealing portion 27 is inserted into spout opening 4 and the outer periphery of sealing portion 27 comes into tight contact with the entire inner periphery of discharge portion 13. This seals the gap between cap body 21 and spout body 3, and spout opening 4 is capped by cap body 21.

[0032] The sealing band 23 is a ring that is fitted onto the discharge portion 13 of the spout body 3 and held by the flange 15, and rotation in the opening and closing directions 18 and 19 relative to the spout body 3 is restricted by multiple claws (not shown) formed on the outer periphery of the discharge portion 13 and the inner periphery of the sealing band 23 hooking together.

[0033] The bridge 22 is connected to the lower end of the cylindrical body 25 of the cap body 21 and the upper end of the sealing band 23, and a gap 30 is formed between the lower end of the cylindrical body 25 and the upper end of the sealing band 23.

[0034] A plurality of (two in FIG. 3) fitting protrusions 33 protruding upward are formed at the upper end of the sealing strip 23. In addition, a plurality of (two in FIG. 4) fitting recesses 34 that can be fitted from above into the fitting protrusions 33 at the capping completion position 29 are provided at the lower end of the cylindrical body 25 of the cap body 21. The fitting recesses 34 are recessed upward from the lower end of the cylindrical body 25.

[0035] As shown in Fig. 5, a first inclined portion 37 inclined from the upper end of the sealing band 23 in the opening direction 18 is formed at the end of the fitting convex portion 33 in the closing direction 19. Also, as shown in Fig. 6, a second inclined portion 38 inclined from the lower end of the cylindrical barrel 25 of the cap body 21 in the opening direction 18 is formed at the end of the fitting concave portion 34 in the closing direction 19.

[0036] 4 and 7 to 9, a sliding contact area 40 is formed at the lower end of the cylindrical barrel 25 of the cap body 21 and on the side of the fitting recess 34 in the closing direction 19. As shown in FIG. 7, when the cap body 21 rotates in the closing direction 19 (see the solid arrow), the lower end of the cylindrical barrel 25 comes into sliding contact with the upper end of the fitting protrusion 33 of the sealing strip 23 that has separated from the cap body 21 in the sliding contact area 40, as shown in FIG.

[0037] 4, the sliding contact area 40 is formed within a range of a predetermined angle α from the fitting recess 34 in the closing direction 19, centered on the axis 42 of the cap body 21, when viewed from the bottom of the cap body 21. The predetermined angle α is set to, for example, 20°, but is not limited to 20°. The operation of the above configuration will now be described.

[0038] When spout 1 is first opened in an unopened state (see FIG. 1 ) with cap 5 attached to spout body 3, by rotating cap body 21 in opening direction 18 relative to spout body 3, bridge 22 breaks, and cap body 21 separates from sealing band 23 and is removed from spout body 3. As a result, spout 1 is opened, and separated sealing band 23 is held by flange 15 and remains on the spout body 3 side.

[0039] If the bridge 22 is broken as described above, it is easy to visually determine that the spout 1 has already been opened. Alternatively, if the bridge 22 is not broken, it is easy to visually determine that the spout 1 has never been opened.

[0040] Furthermore, when the cap body 21 is rotated in the opening direction 18 relative to the spout body 3 during the initial opening as described above, the second inclined portion 38 (see Figure 6) of the mating recess 34 abuts against the first inclined portion 37 (see Figure 5) of the mating protrusion 33 and is guided upward 45 (see Figure 1), causing the cap body 21 to move upward 45 and expanding the gap 30 between the cap body 21 and the sealing band 23 in the vertical direction, thereby causing the bridge 22 to break reliably and separating the cap body 21 from the sealing band 23.

[0041] The cap body 21 is detached from the spout body 3 to open the spout 1, and the contents of the container 2 are poured out from the spout opening 4 of the spout body 3. Then, by rotating the cap body 21 in the closing direction 19 relative to the spout body 3, the female thread 17 screws into the male thread 14, and the cap body 21 is tightened onto the spout body 3 as shown in Figure 7. As shown in Figure 8, in the sliding contact area 40 just before reaching the capping completion position 29, the lower end of the cylindrical body 25 of the cap body 21 slides against the upper end of the mating protrusion 33 of the sealing band 23, and then, while sliding, it reaches the capping completion position 29 as shown in Figure 9, and the mating recess 34 fits into the mating protrusion 33, and the spout 1 is closed.

[0042] As shown in FIG. 8 , the cylindrical barrel 25 of the cap body 21 slides against the fitting protrusion 33 of the sealing strip 23 in the sliding contact region 40, causing the fitting protrusion 33 to be pressed downward 46 by the cap body 21. Then, as shown in FIG. 9 , the fitting recess 34 fits into the fitting protrusion 33 at the complete plugging position 29. Therefore, the fitting protrusion 33 is suddenly released from the pressing force F1 it had received from the cap body 21 in the sliding contact region 40 at the same time that the fitting recess 34 reaches the complete plugging position 29. This causes the fitting protrusion 33 to vibrate slightly, and this vibration is transmitted to the cap body 21. The user can feel the vibration transmitted from the fitting protrusion 38 to the cap body 21 as a clicking sensation with their fingertips. Therefore, even with a spout 1 having a small outer diameter, it is easy to intuitively recognize that the cap body 21 has been plugged, and excessive tightening of the cap body 21 into the spout body 3 can be prevented during plugging.

[0043] In the first embodiment described above, as shown in Fig. 1, the direction of the axis 7 of the spout body 3 is the up-down direction 8, but it may be an oblique direction or a horizontal direction. Furthermore, the direction in which the cap body 21 rotates in the opening direction 18 and separates from the spout body 3 is the up-down direction 45, and the direction in which the cap body 21 rotates in the closing direction 19 and is fastened to the spout body 3 is the down-down direction 46, but these directions are not limited to the up-down direction 45 and the down-down direction 46.

[0044] In this case, if the direction in which cap body 21 rotates in opening direction 18 and separates from spout body 3 is defined as one direction, and the direction in which cap body 21 rotates in closing direction 19 and is fastened to spout body 3 is defined as the other direction, fitting protrusion 33 protrudes in one direction from sealing band 23, and fitting recess 34 is recessed in one direction from the other end of cap body 21, so that when cap body 21 rotates in closing direction 19, the other end of cap body 21 slides against the one end of fitting protrusion 33 in sliding contact area 40. Also, first inclined portion 37 inclines from the one end of sealing band 23 in opening direction 18, and second inclined portion 38 inclines from the other end of cap body 21 in opening direction 18. (Second embodiment) The second embodiment will be described below. Note that the same members as those in the spout 1 of the first embodiment described above will be denoted by the same reference numerals and detailed description thereof will be omitted.

[0045] 10 to 12, in the second embodiment, a plurality of (for example, two) downwardly recessed mating recesses 60 are provided at the upper end of the sealing strip 23. In addition, a plurality of (for example, two) mating protrusions 61 that can be fitted into the mating recesses 60 from above at the capping completion position 29 are provided at the lower end of the cylindrical barrel 25 of the cap body 21. The mating protrusions 61 protrude downward from the lower end of the cylindrical barrel 25.

[0046] 11, 13 to 15, a third inclined portion 63 inclined from the lower end of the cylindrical barrel 25 of the cap body 21 in the closing direction 19 is formed at the end of the fitting protrusion 61 in the opening direction 18. Also, as shown in Figs. 12, 13 to 15, a fourth inclined portion 64 inclined from the upper end of the sealing band 23 in the closing direction 19 is formed at the end of the fitting recess 60 in the opening direction 18.

[0047] 12 to 15, a sliding contact area 40 is formed at the upper end of the sealing band 23 and on the side of the fitting recess 60 in the opening direction 18. As shown in FIG. 14, when the cap body 21 rotates in the closing direction 19, the lower end of the fitting protrusion 61 comes into sliding contact with the upper end of the sealing band 23 that has separated from the cap body 21 in the sliding contact area 40.

[0048] 12, the sliding contact area 40 is formed in a range of a predetermined angle α from the fitting recess 60 in the opening direction 18, centered on the axis 42 of the cap body 21, in a plan view of the sealing band 23. The predetermined angle α is set to, for example, 20°, but is not limited to 20°. The operation of the above configuration will now be described.

[0049] When the cap body 21 is rotated in the opening direction 18 relative to the spout body 3 during initial opening, the third inclined portion 63 of the mating protrusion 61 abuts against the fourth inclined portion 64 of the mating recess 60 and is guided upward 45, and the cap body 21 moves upward 45, expanding the gap 30 between the cap body 21 and the sealing band 23 in the vertical direction, causing the bridge 22 to break reliably and separating the cap body 21 from the sealing band 23.

[0050] The cap body 21 is detached from the spout body 3 to open the spout 1, and the contents of the container 2 are poured out from the spout opening 4 of the spout body 3. Then, by rotating the cap body 21 in the closing direction 19 relative to the spout body 3, the female thread 17 screws into the male thread 14, and the cap body 21 is tightened onto the spout body 3 as shown in Figure 13. As shown in Figure 14, in the sliding contact area 40 just before the engaging protrusion 61 reaches the capping completion position 29, the lower end of the engaging protrusion 61 slides against the upper end of the sealing band 23, and then, while sliding, it reaches the capping completion position 29 as shown in Figure 15, and the engaging protrusion 61 fits into the engaging recess 60, and the spout 1 is closed.

[0051] As shown in Figure 14, in the sliding contact area 40, the mating protrusion 61 of the cap body 21 slides against the sealing band 23, so that the mating protrusion 61 presses the sealing band 23 downward 46, and a reaction force F2 of the pressing force acts from the sealing band 23 on the mating protrusion 61.

[0052] 15, when the fitting protrusion 61 fits into the fitting recess 60 at the plugging completion position 29, the fitting protrusion 61 is suddenly released from the reaction force F2 that it had received from the sealing band 23 in the sliding contact area 40. This causes the fitting protrusion 61 to vibrate slightly, and this vibration is transmitted to the cap body 21, allowing the user to feel the vibration transmitted from the fitting protrusion 61 to the cap body 21 as a clicking sensation with their fingertips. Therefore, even with a spout 1 having a small outer diameter, it is easy to intuitively recognize that the cap body 21 has been plugged, and it is possible to prevent the cap body 21 from being over-tightened into the spout body 3 during plugging.

[0053] In the second embodiment described above, as shown in Fig. 10, the direction of the axis 7 of the spout body 3 is the up-down direction 8, but it may be an oblique direction or a horizontal direction. Furthermore, the direction in which the cap body 21 rotates in the opening direction 18 and separates from the spout body 3 is the up-down direction 45, and the direction in which the cap body 21 rotates in the closing direction 19 and is fastened to the spout body 3 is the down-down direction 46, but these directions are not limited to the up-down direction 45 and the down-down direction 46.

[0054] In this case, if the direction in which cap body 21 rotates in opening direction 18 and separates from spout body 3 is defined as one direction, and the direction in which cap body 21 rotates in closing direction 19 and is fastened to spout body 3 is defined as the other direction, fitting protrusion 61 protrudes in the other direction from the other end of cap body 21, and fitting recess 60 is recessed in the other direction from the one end of sealing band 23, so that when cap body 21 rotates in closing direction 19, the other end of fitting protrusion 61 comes into sliding contact with the one end of sealing band 23 in sliding contact area 40. In addition, third inclined portion 63 inclines from the other end of cap body 21 in closing direction 19, and fourth inclined portion 64 inclines from the one end of sealing band 23 in closing direction 19. [Explanation of symbols]

[0055] 1 spout 2 containers 3 Spout body 5 Caps 14 Male thread 17 Female thread 18 Opening direction 19 Close direction 21 Cap body 22 Bridge 23 Sealing Belt 29 Closing completion position 33 Fitting protrusion 34 Fitting recess 37 1st slope part 38 2nd slope part 40 Sliding contact area 60 Fitting recess 61 mating protrusion 63 Third slope 64 4th slope

Claims

1. A spout comprising a spout body that is attached to a container and a detachable cap that opens and closes the spout body, The cap has a cap body that is connected to the spout body via a screw so as to be rotatable in an opening and closing direction, and a sealing band that is provided on the cap body via a breakable bridge, The seal band is restricted from rotating in the opening and closing direction relative to the spout body. The sealing strip is provided with a mating protrusion, a fitting recess that can be fitted into the fitting protrusion at the closing position is provided on the cap body; A sliding contact area is formed on the closing direction side of the fitting recess of the cap body, A spout characterized in that, when the cap body is rotated in the closing direction, the cap body comes into sliding contact with the fitting convex portion of the sealing strip that has separated from the cap body in the sliding contact area.

2. The mating projection protrudes upward from the sealing strip, The fitting recess is recessed upward from the bottom end of the cap body, 2. The spout according to claim 1, wherein when the cap body is rotated in the closing direction, the lower end of the cap body comes into sliding contact with the upper end of the fitting protrusion in the sliding contact region.

3. A first inclined portion inclined from the upper end of the sealing strip toward the opening direction is formed at the end of the fitting protrusion in the closing direction, 3. The spout according to claim 2, wherein a second inclined portion is formed at an end of the fitting recess in the closing direction, the second inclined portion being inclined from the lower end of the cap body in the opening direction.

4. A spout comprising a spout body that is attached to a container and a detachable cap that opens and closes the spout body, The cap has a cap body that is connected to the spout body via a screw so as to be rotatable in an opening and closing direction, and a sealing band that is provided on the cap body via a breakable bridge, The seal band is restricted from rotating in the opening and closing direction relative to the spout body. The sealing strip is provided with a fitting recess, a fitting protrusion that can be fitted into the fitting recess at the capping completion position is provided on the cap body; A sliding contact area is formed on the opening direction side of the fitting recess of the sealing strip, The spout is characterized in that the fitting protrusion comes into sliding contact with the sealing strip that separates from the cap body in the sliding contact area when the cap body is rotated in the closing direction.

5. The fitting protrusion protrudes downward from the bottom end of the cap body, The mating recess is recessed downward from the top end of the sealing strip, 5. The spout according to claim 4, wherein when the cap body is rotated in the closing direction, the lower end of the fitting projection comes into sliding contact with the upper end of the sealing strip in the sliding contact region.

6. a third inclined portion inclined from the lower end of the cap body in the closing direction is formed at an end of the fitting protrusion in the opening direction; 6. The spout according to claim 5, wherein a fourth inclined portion inclined from an upper end of the sealing strip toward the closing direction is formed at an end of the fitting recess in the opening direction.

7. 7. The spout according to claim 1, wherein the sealing band is a ring that is fitted onto and held on the spout body.

Images