JP2000142742A - Cap with seal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase friction between a synthetic resin cap and an outer wall of a bottle mouth to reinforce elastic contact force by providing an elastically deformable means which is in elastic contact with an outer wall part of the bottle mouth on the cap. SOLUTION: A synthetic resin cap 1 is equipped with a circular flange 14 on an outer wall of a bottle mouth, a fitting hole 8 to be fitted with an insertion piece 7 as an elastically deformable means of a seal ring 6 is provided at a lower end face of the cap 1, and the insertion piece 7 of the seal ring 6 is fitted and hooked with the fitting hole 8 for rigidly coupling both. The insertion piece 7 is divided into right and left protruding pieces 7b by a groove 7a at a center, which deform when inserted, wherein when a protrusion 7c of the right and left protruding pieces 7b is inserted into a hook recess 8a of the fitting hole 8, the insertion piece 7 returns to an original shape, so that the hook recess 8a and the protrusion 7c are engaged, and the cap 1 and the seal ring 6 are integrally fixed, thereby forming the cap 10 with a seal.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention has an object to prevent loosening of a cap and to secure connection and fixing of a cap and a sealing ring.

[0002]

2. Description of the Related Art Conventionally, if a cap is provided with a sealing ring, the structure becomes complicated and the manufacturing efficiency is lowered. Therefore, a sealing cap having a cap and a sealing ring separately manufactured and fitted with each other has been proposed. .

[0003]

The above-mentioned conventional sealing caps of various structures have been put to practical use. However, the cap may be loosened during use, or the sealing ring and the cap may not fit together due to manufacturing accuracy or other factors. However, there is a problem that the sealing member does not exhibit a sealing action by being separated from the fitting portion.

[0004]

SUMMARY OF THE INVENTION The present invention provides a cap,
In order to increase the frictional force between the bottle and the outer wall of the bottle, the elastic contact force is strengthened, and the fitting problem is provided between the cap and the seal ring. is there.

That is, the present invention is a cap with a sealing cap, wherein a sealing ring is fitted and fixed to a cap made of synthetic resin, wherein the cap is provided with elastic deformation means for elastically contacting the outer wall of the bottle opening. . The elastic deformation means
A groove is provided on a spiral strip provided on the cap, and the elastic deformation means is an elastic protruding piece that elastically contacts the flange of the bottle outer wall on the lower end surface of the cap.

Next, another invention relates to a cap in which a sealing ring is fitted and fixed to a cap made of a synthetic resin, wherein a fitting insertion piece of the sealing ring is fitted into a fitting hole formed in a lower end surface of the cap. A sealing cap characterized in that a cap and a sealing ring are integrated, wherein the fitting hole and the fitting piece are hooked with the projection of the fitting piece in a recess provided in the fitting hole. Things.

In the above invention, since the groove is provided in the spiral thread of the cap, the amount of elastic deformation of the spiral thread increases when the cap is screwed in, and the elasticity of the spiral thread is ensured even when used for a long time. Can be.

According to another aspect of the present invention, in a cap in which a sealing ring is fitted and fixed to a cap made of a synthetic resin, an annular fitting portion of the sealing ring is fitted and locked in an annular groove provided in a lower end surface of the cap. A sealing cap in which the cap and the sealing ring are integrated, wherein the annular groove and the annular fitting portion are provided with means for restraining the rotational direction or increasing frictional force.

Further, by providing a projection on the lower end surface of the cap, the cap and the step of the outer wall of the bottle opening are elastically contacted with each other to prevent rotation.

[0010] Furthermore, the fitting is performed by providing a fitting hole and a fitting piece in the fitting portion between the cap and the sealing ring so that once fitted, they cannot be separated and integrated. It is a thing.

[0011]

According to the present invention, a groove is provided in a spiral strip of a cap to increase the amount of elastic deformation, or an elastic protruding piece is provided at an end face of the cap for elastically contacting a flange of an outer wall of a bottle.
It is a sealing cap with increased frictional force between the cap and the bottle mouth.

Further, the cap is provided with a fitting hole in the lower end face of the cap and fitted with a fitting piece provided in the sealing ring to prevent the cap from being separated from the sealing ring during use. .

The above-mentioned protruding pieces are provided at two to four places on the circumference, and one to six at one place can sufficiently achieve the purpose.

[0014] The fitting hole and the fitting piece are formed on the circumference by 2 to 4
The locations are normal, but do not limit the number.

Next, an annular fitting portion of a sealing ring is fitted into the annular groove of the cap, and the cap and the sealing ring are engaged in both the circumferential direction and the axial direction.

[0016]

Embodiment 1 An embodiment of the present invention is shown in FIGS.
5 and 6 will be described. On the inner wall of a cap 1 made of synthetic resin having a cap shape in cross section, a female screw 4 (helical thread) is provided, which is screwed with a male screw 3 provided on the outer wall of the bottle opening 2, and a groove is formed at the top of the female screw 4 (helical thread). 5 is provided.

The lower end surface of the cap 1 is provided with a fitting hole 8 for fitting with the fitting piece 7 of the sealing ring 6, and the fitting piece 7 of the sealing ring 6 is fitted into the fitting hole 8 of the cap 1. The two are firmly connected by being hooked.

Since the fitting piece 7 is divided into left and right protruding pieces 7b and 7b by a groove 7a at the center, the fitting piece 7 is deformed as shown by a chain line in FIG. Recess 8a
When the projections 7c, 7c of the left and right protruding pieces 7b, 7b enter, the fitting insertion piece 7 has the original shape, and the engaging recess 8a and the projections 7c, 7c are engaged. The sealing ring 6 is integrally fixed to form a sealing cap 10.

The sealing ring 6 includes a connecting cylinder 9 and a retaining cylinder 11.
Are connected by connecting lines 12 and 12 which are easy to cut,
Four fitting pieces 7 are protruded from the connecting cylinder 9, and
On the inner wall of 1, upward locking pieces 13, 13 which lock with the annular flange 14 of the outer wall of the bottle mouth are protrudingly provided. In the figure, 16 is a packing, and 18 is a rib.

When the sealing cap 10 is screwed into the bottle opening as shown in FIG. 7, the cap 1 and the sealing ring 6 are smoothly received as indicated by arrow 15 without any resistance. When the cap 10 is rotated in the opposite direction to remove the cap 10 from the bottle opening 2, regardless of the cap 1 rising as indicated by the arrow 17, the hanging cylinder 11 is moved upward.
And the annular collar 14 stops at the current position, so that the connecting wire 12 is eventually cut off, thereby fulfilling the role of sealing.

In the above description, the cap 1 and the connecting cylinder 9 are firmly connected by the engagement of the fitting hole 8 and the fitting piece 7, and there is no possibility that both will come off.

In the above embodiment, since the female screw 4 is provided with the groove 5, the female screw 4 and the male screw 3 elastically adhere to each other.
Even when used for a long period of time, the elasticity is maintained and there is no risk of the cap becoming loose.

Next, the cap 1 shown in FIG. 8 is one in which the shape of the female screw 4 is arc-shaped in cross section, and the cap shown in FIG. 1 is that in which the shape of the female screw 4 is trapezoidal in cross section. Therefore, FIG.
Other structures, operations, and effects of the cap are the same as those of the cap of FIG. 1, and detailed description thereof is omitted.

In the above-described embodiment, the cap 1 is turned by providing a plurality of knurl portions 19 in which a plurality of vertical lines are arranged in parallel on the side wall of the cap 1 and providing a plurality of flat portions 19a at equal intervals. In this case, slippage is prevented (FIGS. 10 and 11). Therefore, almost the object can be achieved only with the knurl portion 19 or only the flat portion 19a. The embodiment of FIGS. 10 and 11 and the embodiment of FIGS. 1 and 2 show only the difference in the shape of the outer wall of the cap.
The female screw 4 and the groove 5 and other fitting retaining structures and the like are exactly the same, and description thereof is omitted.

[0025]

Embodiment 2 Another embodiment of the present invention is shown in FIGS.
Description will be made based on Nos. 2 and 13. Cap 2 made of synthetic resin
Elastic projections 21 and 21 elastically contacting the upper surface of the annular flange 14 of the bottle opening 2 are provided at substantially equal intervals at four locations on the lower end surface of the bottle. Fitting holes 22 are provided at equal intervals on the lower end surface of the cap 20, and a fitting piece 7 fitted in the fitting hole 22 is formed in the connecting cylinder 9 of the sealing ring 6 so as to correspond to the fitting hole 22. Provided. The lower end of the connecting cylinder 9 is connected to the upper end of a hooking cylinder 11 by a connecting line 12. The inner wall of the hooking cylinder 11 has a lower surface wall of an annular flange 14 provided on the outer wall of the bottle opening 2. And an upward hanging piece 13 is provided. The cap 2
No. 0 fitting hole 22 and the fitting piece 7 provided in the connecting cylinder 9 of the sealing ring 6 were hooked to form a sealing cap 23.

When the sealing cap 23 is screwed into the bottle opening 2 as shown in FIG. 13, the sealing cap 23 descends smoothly as shown by arrow 24, but the sealing cap 23 is moved to arrow 25. When the screw is unscrewed as described above, the upward hooking piece 13 of the hooking cylinder 11 is hooked on the lower edge of the annular flange 14 of the bottle opening 2 and stays at the current position and does not rise together with the cap 20. The wire 12 can be cut and serve as a seal.

In the above, the elastic projection 2 of the cap 20
Since the reference numerals 1 and 21 are in elastic contact with the upper surface of the annular collar 14 of the bottle opening 2 (due to elastic deformation), the elasticity is maintained even after long-time use, and there is no possibility that the cap is loosened.

[0028]

Embodiment 3 Another embodiment of the present invention is shown in FIGS.
The description will be made based on 8, 19, 20, 21, and 22. A female screw 27 (helical) screwed into the male screw 3 provided on the outer wall of the bottle opening 2 on the inner wall of a cap 26 made of synthetic resin having a hat-shaped cross section.
And a groove 28 is provided at the top of the female screw 27. The lower end surface of the cap 26 is provided with a fitting groove 31 for fitting with the annular fitting portion 30 of the sealing ring 29, and the fitting groove 31 of the cap 26 is provided with the annular fitting portion 30 of the sealing ring 29. The two are firmly connected by fitting. An uneven portion 31a is provided at an edge of the fitting groove 31, and the fitting groove 31 and
A frictional force is applied to the annular fitting portion 30 with respect to the rotational direction, and is substantially restrained.

The sealing ring 29 is formed by connecting a connecting tube 32 and a hooking tube 33 with connecting lines 34, 34 which are easy to cut, and an annular fitting portion 30 is formed on the upper portion of the connecting tube 32. On the inner wall of the latching cylinder 33, upward latching pieces 35, 35 which latch on the lower surface wall of the annular flange 14 provided on the outer wall of the bottle opening 2 are provided.
Are protruded to form a sealing cap 36. In the drawing, reference numeral 23 denotes an annular ridge provided on the upper portion of the outer wall of the annular fitting portion 30, and reference numeral 24 denotes an annular flange provided on the lower portion of the outer wall, which faces the annular step portion 25 provided on the lower end surface of the cap 26. They are fitted together (FIG. 22). In the figure, 37 is a packing, and 38 is a rib vertically provided on the side wall of the cap.

When the sealing cap 36 is screwed into the bottle opening 2 as shown in FIG.
The seal ring 29 is not affected by any resistance, and is indicated by arrow 39.
As described above, when the cap 36 is rotated in the opposite direction to remove the sealing cap 36 from the bottle opening 2, the cap 2
6 rises as indicated by the arrow 40, but the locking cylinder 3
3 stops at the current position by the hooking of the upward hooking piece 35 and the annular flange 14, so that the connecting wire 34 is eventually cut off and can serve as a seal.

In the above, the cap 26 and the connecting cylinder 3
2 is firmly connected by the engagement of the fitting groove 31 and the annular fitting portion 30, and there is no risk that both will come off.

In the above embodiment, the female screw 27 has the groove 2
Since the female screw 27 is provided, the female screw 27 and the male screw 3 elastically adhere to each other, maintain elasticity even when used for a long time, and there is no possibility that the cap is loosened.

Next, the lower end surface of the cap 26 and the connecting tube 32
Since the lower edge of the step is substantially flush with the lower edge, the connecting cylinder 32 cannot be pulled down with a claw or the like.

In the above description, since the outer wall of the cap 26 is polygonal (12-sided) and is provided with the ribs 38, the cap 26 is gripped and the necessary force is applied without fear of slipping when the cap 26 is rotated. Can be easily rotated.

[0035]

According to the present invention, since the cap is provided with means for elastically contacting the outer wall of the bottle opening, the cap maintains elasticity even when used for a long time, and there is no risk of the cap becoming loose. Further, since the fitting hole of the cap and the fitting piece of the sealing ring are hooked at the concave portion, there is an effect that there is no possibility that the cap and the connecting cylinder are separated.

[Brief description of the drawings]

FIG. 1 is a sectional view of a cap according to an embodiment of the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a bottom view of the same.

FIG. 4 is a sectional view of the same sealing ring.

FIG. 5 is a plan view of the same.

FIG. 6 is a bottom view of the same.

FIG. 7 is a cross-sectional view in the use state.

FIG. 8 is a sectional view of a cap according to another embodiment.

FIG. 9 is a partial cross-sectional view showing engagement of the fitting hole and the fitting piece;

FIG. 10 is a plan view of a cap according to another embodiment.

FIG. 11 is a front view of the same.

FIG. 12 is a sectional view of a cap according to another embodiment.

FIG. 13 is a plan view of the same.

FIG. 14 is a bottom view of the same.

FIG. 15 is a sectional view of the same use state.

FIG. 16 is a sectional view of a cap according to another embodiment.

FIG. 17 is a plan view of the same.

FIG. 18 is a bottom view of the same.

FIG. 19 is a sectional view of the same sealing ring.

FIG. 20 is a plan view of the same.

FIG. 21 is a bottom view of the same.

FIG. 22 is a cross-sectional view of the same coupling of the cap and the sealing ring.

[Explanation of symbols]

 1, 26 Cap 2 Bottle mouth 3 Male screw 4, 27 Female screw 5, 28 Groove 6 Sealing 7 Fitting piece 7a Groove 7b Protrusion piece 7c Projection 8,22 Fitting hole 9,32 Connecting cylinder 10,23,36 Sealing Cap 11, 33 Hook cylinder 12, 34 Connecting line 13, 35 Upward hook piece 14, 24 Ring flange 16, 37 Packing 18, 38 Rib 19 Knurl part 19a Flat part 20 Cap 21 Elastic protrusion 23 Ring protrusion 25 Annular step part 29 Sealing ring 31 Fitting groove 30 Ring fitting part

[Procedure amendment]

[Submission date] February 2, 2000 (200.2.2)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction contents]

[Document Name] Statement

[Title of the Invention] Sealing cap

[Claims]

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention has an object to prevent loosening of a cap and to secure connection and fixing of a cap and a sealing ring.

[0002]

2. Description of the Related Art Conventionally, if a cap is provided with a sealing ring, the structure becomes complicated and the manufacturing efficiency is lowered. Therefore, a sealing cap having a cap and a sealing ring separately manufactured and fitted with each other has been proposed. .

[0003]

The above-mentioned conventional sealing caps of various structures have been put to practical use. However, the cap may be loosened during use, or the sealing ring and the cap may not fit together due to manufacturing accuracy or other factors. However, there is a problem that the sealing member does not exhibit a sealing action by being separated from the fitting portion.

[0004]

SUMMARY OF THE INVENTION The present invention provides a cap,
In order to increase the frictional force between the bottle opening the outer wall, to strengthen the elastic contact force, between the cap and the sealing ring, provided with a HamagoKaketome means, and coupling tube a sealing ring, locking cylinder The cutting volume
The above-mentioned conventional problems were solved by connecting with easy connecting lines .

Namely the present invention is a cap fitted fixing the sealing ring made of a synthetic resin cap, bottle cap
In addition to providing elastic deformation means that elastically contacts the outer wall of the mouth,
A fitting hole provided in the lower end surface of the cap, by integrating the cap and sealing ring fitted engaging the fitting挿片the sealing ring, the sealing ring
Is a sealing cap, wherein the connecting tube and the hooking tube are connected by an easy-to-cut connecting line, and the hooking of the fitting hole and the fitting insert is provided in a recess provided in the fitting hole, The projection of the insertion piece is hooked.

In the above invention, the cap and the bottle outer wall are provided.
Between the elastic deformation means (for example , grooves on the spiral strip of the cap )
Is provided, the amount of elastic deformation of the spiral strip increases when the cap is screwed, and the elasticity of the spiral strip can be ensured even when used for a long time.

In another invention, a cap is provided with a bottle outer wall portion.
Along with providing elastic deformation means for elastic contact, a cap in which a sealing ring is fitted and fixed to a synthetic resin cap,
The annular fitting portion of the sealing ring is fitted into and engaged with the annular groove provided on the lower end surface of the cap, and the cap and the sealing ring are integrated , and the sealing ring can easily cut the connecting cylinder and the locking cylinder. With connecting lines
A sealing cap characterized by being connected , wherein the annular groove and the annular fitting portion restrict the rotational direction or provide a frictional force increasing means in the rotational direction .

[0008]

According to the present invention, a groove is provided in a spiral strip of a cap to increase the amount of elastic deformation, or an elastic protruding piece is provided at an end face of the cap for elastically contacting a flange of an outer wall of a bottle.
It is a sealing cap with increased frictional force between the cap and the bottle mouth. The elastic protruding piece in the above is about 2 to 4 places around the circumference
Achieving the purpose sufficiently with 1 to 6 lines at one place
Can be. Further, the cap is provided with a fitting hole in the lower end surface of the cap and fitted with the fitting piece provided in the sealing ring to prevent separation of the cap and the sealing ring during use. In addition, the fitting hole and the fitting piece are
Four are common, but do not limit the number
No. Next, an annular fitting portion of a sealing ring is fitted into the annular groove of the cap, and the cap and the sealing ring are engaged in both the circumferential direction and the axial direction.

[0009]

Embodiment 1 An embodiment of the present invention is shown in FIGS.
5 and 6 will be described. On the inner wall of a cap 1 made of synthetic resin having a cap shape in cross section, a female screw 4 (helical thread) is provided, which is screwed with a male screw 3 provided on the outer wall of the bottle opening 2, and a groove is formed at the top of the female screw 4 (helical thread). 5 is provided. The lower end surface of the cap 1 is provided with a fitting hole 8 for fitting with the fitting piece 7 of the sealing ring 6, and the fitting piece 7 of the sealing ring 6 is fitted and locked in the fitting hole 8 of the cap 1. Thus, the two are firmly connected.

The fitting piece 7 is divided into left and right protruding pieces 7b, 7b by a central groove 7a. Therefore, when the fitting piece 7 is fitted, the fitting piece 7 is deformed as shown by a chain line in FIG. Recess 8a
When the projections 7c, 7c of the left and right protruding pieces 7b, 7b enter, the fitting insertion piece 7 has the original shape, and the engaging recess 8a and the projections 7c, 7c are engaged. The sealing ring 6 is integrally fixed to form a sealing cap 10.

The sealing ring 6 includes a connecting cylinder 9 and a retaining cylinder 11.
Are connected by connecting lines 12 and 12 which are easy to cut,
Four fitting pieces 7 are protruded from the connecting cylinder 9, and
On the inner wall of 1, upward locking pieces 13, 13 which lock with the annular flange 14 of the outer wall of the bottle mouth are protrudingly provided. In the figure, 16 is a packing, and 18 is a rib.

When the sealing cap 10 is screwed into the bottle opening as shown in FIG. 7, the cap 1 and the sealing ring 6 are smoothly received as shown by arrow 15 without any resistance. When the cap 10 is rotated in the opposite direction to remove the cap 10 from the bottle opening 2, regardless of the cap 1 rising as indicated by the arrow 17, the hanging cylinder 11 is moved upward.
And the annular collar 14 stops at the current position, so that the connecting wire 12 is eventually cut off, thereby fulfilling the role of sealing.

In the above description, the cap 1 and the connecting cylinder 9 are firmly connected by the engagement of the fitting holes 8 and the fitting pieces 7, and there is no possibility that both will come off.

In the above embodiment, since the female screw 4 is provided with the groove 5, the female screw 4 and the male screw 3 elastically adhere to each other.
Even when used for a long period of time, the elasticity is maintained and there is no risk of the cap becoming loose.

Next, the cap 1 shown in FIG. 8 is one in which the shape of the female screw 4 is arcuate in cross section, and the cap shown in FIG. 1 is that in which the shape of the female screw 4 is trapezoidal in cross section. Therefore, FIG.
Other structures, operations, and effects of the cap are the same as those of the cap of FIG. 1, and detailed description thereof is omitted.

In the above embodiment, the cap 1 is turned by providing a plurality of knurl portions 19 in which a plurality of vertical lines are arranged in parallel on the side wall of the cap 1 and providing a plurality of flat portions 19a at equal intervals. In this case, slippage is prevented (FIGS. 10 and 11). Therefore, almost the object can be achieved only with the knurl portion 19 or only the flat portion 19a. The embodiment of FIGS. 10 and 11 and the embodiment of FIGS. 1 and 2 show only the difference in the shape of the outer wall of the cap.
The female screw 4 and the groove 5 and other fitting retaining structures and the like are exactly the same, and description thereof is omitted.

[0017]

Embodiment 2 Another embodiment of the present invention is shown in FIGS.
Description will be made based on Nos. 2 and 13. Cap 2 made of synthetic resin
Elastic projections 21 and 21 elastically contacting the upper surface of the annular flange 14 of the bottle opening 2 are provided at substantially equal intervals at four locations on the lower end surface of the bottle. Fitting holes 22 are provided at equal intervals on the lower end surface of the cap 20, and a fitting piece 7 fitted in the fitting hole 22 is formed in the connecting cylinder 9 of the sealing ring 6 so as to correspond to the fitting hole 22. Provided. The lower end of the connecting cylinder 9 is connected to the upper end of a hooking cylinder 11 by a connecting line 12. The inner wall of the hooking cylinder 11 has a lower surface wall of an annular flange 14 provided on the outer wall of the bottle opening 2. And an upward hanging piece 13 is provided. The cap 2
No. 0 fitting hole 22 and the fitting piece 7 provided in the connecting cylinder 9 of the sealing ring 6 were hooked to form a sealing cap 23.

[0018] When screwing the sealing cap with 23 to Binguchi portion 2 as shown in FIG. 1. 5, sealing with the cap 23 is smoothly lowered as indicated by an arrow 24, arrow a sealing capped 23 When the screw is unscrewed as shown in FIG. 25, the upward locking piece 13 of the locking cylinder 11 is locked with the lower edge of the annular flange 14 of the bottle opening 2 and stops at the current position and does not rise together with the cap 20. The connecting wire 12 can be cut and can serve as a seal.

In the above, the elastic projection 2 of the cap 20
Since the reference numerals 1 and 21 are in elastic contact with the upper surface of the annular collar 14 of the bottle opening 2 (due to elastic deformation), the elasticity is maintained even after long-time use, and there is no possibility that the cap is loosened.

[0020]

Embodiment 3 Another embodiment of the present invention is shown in FIGS.
The description will be made based on 8, 19, 20, 21, and 22. A female screw 27 (helical) screwed into the male screw 3 provided on the outer wall of the bottle opening 2 on the inner wall of a cap 26 made of synthetic resin having a hat-shaped cross section.
And a groove 28 is provided at the top of the female screw 27. The lower end surface of the cap 26 is provided with a fitting groove 31 for fitting with the annular fitting portion 30 of the sealing ring 29, and the fitting groove 31 of the cap 26 is provided with the annular fitting portion 30 of the sealing ring 29. The two are firmly connected by fitting. An uneven portion 31a is provided at an edge of the fitting groove 31, and the fitting groove 31 and
A frictional force is applied to the annular fitting portion 30 with respect to the rotational direction, and is substantially restrained.

The sealing ring 29 is formed by connecting a connecting tube 32 and a hooking tube 33 with connecting lines 34, 34 which are easy to cut. An annular fitting portion 30 is formed on the upper portion of the connecting tube 32. On the inner wall of the latching cylinder 33, upward latching pieces 35, 35 which latch on the lower surface wall of the annular flange 14 provided on the outer wall of the bottle opening 2 are provided.
Are protruded to form a sealing cap 36. In the figure
Reference numeral 30a denotes an annular ridge provided on the upper portion of the outer wall of the annular fitting portion 30 for locking, and 24 denotes an annular flange provided on the lower portion of the outer wall, which is flush with the annular step portion 25 provided on the lower end surface of the cap 26. It is fitted (FIG. 22). In the figure, 37 is a packing, and 38 is a rib vertically provided on the side wall of the cap.

When the sealing cap 36 is screwed into the bottle opening 2 as shown in FIG.
The seal ring 29 is not affected by any resistance, and is indicated by arrow 39.
As described above, when the cap 36 is rotated in the opposite direction to remove the sealing cap 36 from the bottle opening 2, the cap 2
6 rises as indicated by the arrow 40, but the locking cylinder 3
3 stops at the current position by the hooking of the upward hooking piece 35 and the annular flange 14, so that the connecting wire 34 is eventually cut off and can serve as a seal.

In the above, the cap 26 and the connecting cylinder 3
2 is firmly connected by the engagement of the fitting groove 31 and the annular fitting portion 30, and there is no risk that both will come off.

In the above embodiment, the female screw 27 has the groove 2
Since the female screw 27 is provided, the female screw 27 and the male screw 3 elastically adhere to each other, maintain elasticity even when used for a long time, and there is no possibility that the cap is loosened.

Next, the lower end surface of the cap 26 and the connecting tube 32
Since the lower edge of the step is substantially flush with the lower edge, the connecting cylinder 32 cannot be pulled down with a claw or the like.

In the above description, since the outer wall of the cap 26 is polygonal (12-sided) and provided with the ribs 38, the cap 26 can be gripped and the necessary force can be applied without rotating when the cap 26 is rotated. Can be easily rotated.

[0027]

According to the present invention, since the cap is provided with means for elastically contacting the outer wall of the bottle opening, the cap maintains elasticity even when used for a long time, and there is no risk of the cap becoming loose. Further, since the fitting hole of the cap and the fitting piece of the sealing ring are hooked at the concave portion, there is an effect that there is no possibility that the cap and the connecting cylinder are separated.

[Brief description of the drawings]

FIG. 1 is a sectional view of a cap according to an embodiment of the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a bottom view of the same.

FIG. 4 is a sectional view of the same sealing ring.

FIG. 5 is a plan view of the same.

FIG. 6 is a bottom view of the same.

FIG. 7 is a cross-sectional view in the use state.

FIG. 8 is a sectional view of a cap according to another embodiment.

FIG. 9 is a partial cross-sectional view showing engagement of the fitting hole and the fitting piece;

FIG. 10 is a plan view of a cap according to another embodiment.

FIG. 11 is a front view of the same.

FIG. 12 is a sectional view of a cap according to another embodiment.

FIG. 13 is a plan view of the same.

FIG. 14 is a bottom view of the same.

FIG. 15 is a sectional view of the same use state.

FIG. 16 is a sectional view of a cap according to another embodiment.

FIG. 17 is a plan view of the same.

FIG. 18 is a bottom view of the same.

FIG. 19 is a sectional view of the same sealing ring.

FIG. 20 is a plan view of the same.

FIG. 21 is a bottom view of the same.

FIG. 22 is a cross-sectional view of the same coupling of the cap and the sealing ring.

DESCRIPTION OF SYMBOLS 1, 26 Cap 2 Bottle opening 3 Male screw 4, 27 Female screw 5, 28 Groove 6 Sealing ring 7 Insertion piece 7a Groove 7b Projection piece 7c Projection 8,22 Fitting hole 9,32 Connecting cylinder 10, 23, 36 Sealing cap 11, 33 Hook cylinder 12, 34 Connection line 13, 35 Upward hook piece 14, 24 Annular flange 16, 37 Packing 18, 38 Rib 19 Knurl part 19a Flat part 20 Cap 21 Elastic protrusion 23 annular ridge 25 annular step 29 seal ring 31 fitting groove 30 annular fitting part

[Procedure amendment 2]

[Document name to be amended] Drawing

[Correction target item name] Fig. 4

[Correction method] Change

[Correction contents]

FIG. 4

[Procedure amendment 3]

[Document name to be amended] Drawing

[Correction target item name] FIG.

[Correction method] Change

[Correction contents]

FIG.

[Procedure amendment 4]

[Document name to be amended] Drawing

[Correction target item name] FIG.

[Correction method] Change

[Correction contents]

FIG.

[Procedure amendment 5]

[Document name to be amended] Drawing

[Correction target item name] FIG.

[Correction method] Change

[Correction contents]

FIG.

Claims (7)

[Claims] 1. A cap in which a sealing ring is fitted and fixed to a cap made of synthetic resin, wherein the cap is provided with elastic deformation means for elastically contacting the outer wall of the bottle. 2. The sealing cap according to claim 1, wherein the elastically deforming means has a groove formed in a spiral strip provided on the cap. 3. The elastic deformation means is provided on a lower end surface of the cap.
The sealing cap according to claim 1, characterized in that it is an elastic protruding piece which elastically contacts the flange of the bottle outer wall. 4. A cap in which a sealing ring is fitted and fixed to a cap made of a synthetic resin, wherein a fitting insertion piece of the sealing ring is fitted into a fitting hole formed in a lower end surface of the cap, and the cap is closed. A sealing cap characterized by integrating the above. 5. The cap according to claim 4, wherein the engagement between the fitting hole and the fitting piece is such that a projection of the fitting piece is engaged with a recess provided in the fitting hole. 6. A cap in which a sealing ring is fitted and fixed to a cap made of synthetic resin, wherein an annular fitting portion of the sealing ring is fitted into an annular groove provided on a lower end surface of the cap, and the cap is sealed with the cap. Sealing cap characterized by being integrated with a ring. 7. The annular groove and the annular fitting portion are provided with means for restraining the rotational direction or increasing frictional force.
The cap with seal as described.