JP2558488Y2 - Dispensing cap with lid - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dispensing cap with a lid which is attached to a mouthpiece of a bottle which is filled with a liquid content in a heated state.

[0002]

2. Description of the Related Art As a dispensing cap with a lid attached to a mouthpiece of a bottle, a cap body having a removal plate portion to be cut and removed, and a lid body hinged to the cap body so as to be openable and closable. Is known.

[0003] As a conventional example of this pouring cap with a lid,
There is one disclosed in Japanese Utility Model Laid-Open No. 57-9743. The spout cap with a lid disclosed in Japanese Utility Model Laid-Open Publication No. 57-9743 discloses a plug body having a lid plate that is cut and removed so as to form an opening, and a ring fitted and coupled to the plug body. And a combination of a separate member with a cap which can be opened and closed by a hinge with respect to this ring.

In the above-mentioned prior art, since the plug body and the cap are composed of different members, the materials of the plug body and the cap are not restricted, and the hinge does not break even when the cap is repeatedly opened and closed. Is selected so that the cap can be molded, and the plug body can be molded by selecting a material that can easily cut and remove the lid plate.

[0005]

However, in the above-mentioned prior art, the lid plate to be cut and removed is formed integrally with the stopper body which is assembled in a liquid-tight manner to the mouthpiece of the bottle.
It is necessary to mold the stopper body with a fragile synthetic resin material such as polyethylene resin, so that the heat of the content liquid to be heated and filled causes permanent deformation of the assembled structure of the stopper body with respect to the mouthpiece of the bottle. However, there is a problem that the liquid-tight assembling of the plug body with respect to the mouthpiece is deteriorated due to the permanent deformation.

Accordingly, the present invention has been devised to solve the above-mentioned problems in the prior art, and it is intended to maintain the ease of cutting and removing the removing plate portion forming the opening while maintaining the ease of cutting the bottle. It is an object of the present invention to prevent the deterioration of the assembled state due to the heat of the cap body due to heat, and to surely prevent the deterioration of the sealing property caused by the heat of the content liquid to be heated and filled.

[0007]

Means for solving the above-mentioned problems The means of the present invention for solving the above-mentioned technical problem is that a lid is attached via a hinge to a cylindrically-shaped assembling cylinder to be assembled to the mouth of a bottle for hot-filling the content liquid. A cap body made of a synthetic resin material having high heat resistance and high rupture strength in which a pouring cylinder is erected through an inner flange-shaped top plate at an upper end of an assembled cylinder, and a cap body; A substantially flat main body plate having a diameter substantially equal to the inner diameter of the upper end of the assembled cylinder is removed by removing the assembled peripheral portion facing the lower surface of the top plate of the cap body and the lower end opening of the pouring cylinder of the cap body. Having a plug plate made of synthetic resin material with good rupture properties, which is divided by a thin portion that is provided around the plate and a pull ring is set up on the removal plate, and compatible with the plug plate on both sides of the aluminum foil It is constituted by coating a synthetic resin film made of synthetic resin material with Surface, the end surface is covered with a plug plate body, is densely welded and fixed by insert molding, and the laminated sheet whose peripheral edge is positioned at the lower surface of the assembled peripheral portion opposed to the upper end surface of the bottle mouthpiece. To have.

In order to firmly assemble the plug plate with the cap body, a short cylindrical engaging cylinder piece protruding downward from the lower surface of the top plate from the lower end of the spout cylinder of the cap body is provided. Preferably, an engaging groove with which the engaging cylinder is engaged is provided on the inner peripheral end of the upper surface of the assembled peripheral portion of the plug plate body facing the engaging cylinder.

In order to more reliably ensure close contact of the lower surface of the assembled peripheral portion of the plug plate body with the upper end surface of the bottle cylinder, a seal is provided on the lower surface of the assembled peripheral portion pressed against the upper surface of the bottle cylinder. It is good to provide a groove.

Further, in order to ensure that the peripheral surface of the laminated sheet is covered with the plug plate, a large number of fine supports for supporting the peripheral edge of the laminated sheet from below are provided on the lower surface of the assembled peripheral portion of the plug plate. It is preferable that the holding pieces are arranged in parallel along the circumferential direction.

[0011]

[Function] To the assembled cylinder which is tightened and assembled to the bottle mouth,
The cap body with the lid integrated via the hinge is made of a material that does not break the hinge due to the repeated opening and closing operations of the lid, has excellent heat resistance, and is less thermally deformed, such as polypropylene resin. Is molded.

Therefore, even if the cap body is assembled to the bottle of the bottle just filled with the heated content liquid, the cap body, especially the assembled cylinder, is thermally deformed by the heat of the content liquid. Without this, the assembly of the cap body to the mouthpiece is firmly and stably achieved and maintained.

On the other hand, the plug plate body is formed of a material having a thin portion with good breakability, for example, a polyethylene resin.

Therefore, an opening forming operation can be easily achieved by cutting off the removal plate portion by breaking the thin portion.

On the lower surface of the plug plate, a laminated sheet in which both surfaces of an aluminum foil are covered with a synthetic resin film made of a synthetic resin material compatible with the plug plate, the peripheral end surface of which is covered with the plug plate. In the form, it is densely welded and fixed by insert molding.Since the peripheral edge of the laminated sheet is opposed to the upper end surface of the barrel, the laminated sheet covers the entire opening of the barrel. Even if the gas barrier property of the plate is low, the opening of the mouthpiece is sealed by the high gas barrier property of the laminated sheet.

As described above, the laminated sheet is welded and fixed to the plug plate with its peripheral end surface covered with the plug plate.
In addition, since the synthetic resin film of the laminated sheet has compatibility with the synthetic resin material which is the molding material of the plug plate, when forming the plug plate using the laminated sheet as an insert material, the lower side of the laminated sheet is formed. The synthetic resin film and the plug plate are firmly and densely welded, whereby the peripheral edge of the laminated sheet is completely covered by the plug plate. For this reason, the aluminum foil on the peripheral end surface of the laminated sheet is completely covered, and the occurrence of inconveniences such as corrosion of the aluminum foil and deterioration of the content liquid due to exposure of the aluminum foil can be eliminated.

The plug plate body having the laminated sheet welded to the lower surface is made of a synthetic resin material which is easily broken, so that it tends to have low heat resistance, and is therefore thermally deformed by the heat of the heat-filled content liquid. Although there is a danger, even if thermal deformation occurs in this plug plate body, the close contact function between the plug plate body and the upper end surface of the barrel does not decrease, so the cap body assembled cylinder to the barrel is As long as the push-down force by assembling acts on the plug plate, the peripheral edge of the plug plate is kept in close contact with the upper end surface of the barrel, and the sealing function between the barrel and the plug plate is maintained. Is not lost.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. The cap body 1 is formed integrally with a polypropylene resin having high heat resistance, hardly causing thermal deformation and having high rupture strength, and is externally assembled with the cylindrical tube 25 of the bottle 24 by screwing. At the upper end of 2, an inner collar-shaped top plate 3
A pouring cylinder 5 whose upper end is enlarged in a trumpet shape from the inner peripheral edge of the top plate 3 is erected, and a lid 7 is attached to a rear upper end of the assembled cylinder 2 via a hinge 11. Are provided integrally.

In the vicinity of the peripheral end of the upper surface of the top plate 3, a short cylindrical fitting tube piece 4 is erected, and at the inner peripheral edge of the lower surface of the top plate 3, a pouring tube 5 is extended downward. In the form, a short cylindrical engagement cylinder piece 6 is vertically provided.

The lid 7 has a cylindrical shape with a top formed by a top wall 8 and a peripheral wall 9.
A short cylindrical sealing cylinder piece 10 that fits tightly into the upper end opening of the peripheral wall 9 is vertically suspended.
Is formed into a caliber that fits and locks onto the
To maintain the closed position.

Hinge 11 for connecting assembled tube 2 and lid 7
Has a mirror hinge structure in which hinge pieces are provided on both sides of an elastic piece.

The plug plate 12 is an integrally molded product made of polyethylene resin having good rupture properties, and a flat main plate 13 having a diameter substantially equal to the inner diameter of the upper end portion of the assembled tube 2 is opposed to the lower surface of the top plate 2. The thinned portion 16 is provided around the peripheral edge portion 15 to be assembled and the removing plate portion 14 facing the lower end opening of the pouring cylinder 5, and a pull ring is provided on the upper peripheral edge portion of the removing plate portion 14. 17 are standing upright.

An engaging groove 18 which engages with the engaging cylinder 6 is provided on the inner peripheral end of the upper surface of the assembled peripheral portion 15 facing the engaging cylinder 6 of the cap body 1. Engagement tube piece 6 of engagement groove 18
When the pulling ring 17 is pulled up to break the thinned portion 16 and cut off the removal plate portion 14, the thinned portion 15 is firmly attached to the cap body 1 side by the engagement with the cap body 1. 16 breaking operations can be achieved smoothly.

A peripheral groove-shaped seal groove 19 is provided on the lower surface of the assembled peripheral edge portion 15 of the plug plate body 12 facing the upper end surface of the barrel 25, and the seal groove 19 is provided. The amount of elastic deformation for achieving sealing of the assembled peripheral portion 15 facing the upper end surface of the cylinder 25 is increased. That is, even if some deformation occurs in the assembled peripheral portion 15 due to the heat of the content liquid, by securing an elastic deformation amount equal to or more than the thermal deformation amount generated in the assembled peripheral portion 15, The thermal deformation generated in the assembled peripheral portion 15 is absorbed by elastic deformation so that the sealing performance is not reduced.

The laminated sheet 21 is formed by coating and laminating a synthetic resin film 23 made of the same polyethylene resin as the plug plate 12 on both sides of the aluminum foil 22. The plug plate 12 is formed by using the laminated sheet 21 as an insert material. By molding

As shown in FIG. 3, the entire peripheral end surface of the laminated sheet 21 is covered with the plug plate 12 and the lower synthetic resin film 23 is formed.
The peripheral end surface of the laminated sheet 21 is firmly and densely welded to the plug plate body 12, and the aluminum foil 22 exposed on the peripheral end surface of the laminated sheet 21 is completely covered with the plug plate body 12. Aluminum foil
22 reliably prevents exposure to the contents.

As described above, the peripheral end surface of the laminated sheet 21 is completely covered by welding the lower synthetic resin film 23 to the plug plate 12, but the synthetic resin film 23 of the laminated sheet 21 is extremely thin. Therefore, when thermal deformation due to the heat of the content liquid occurs in the plug plate 12, the thermal deformation of the plug plate 12 causes the synthetic resin film 23 on the lower side of the laminated sheet 21 and the plug plate 12 to May be peeled off.

The synthetic resin film 23 due to the thermal deformation of the plug plate 12
In order to prevent the occurrence of peeling between and the plug plate body 12,

FIG. 4 and

As shown in FIG. 5, a large number of fine holding pieces 20 for supporting the peripheral edge of the laminated sheet 21 from below are integrally arranged side by side with the assembled peripheral edge 15 along the circumferential direction.

When a large number of the pressing pieces 20 are thermally deformed on the plug plate 12, the pressing force of the pressing edge of the laminated sheet 21 against the peripheral edge 15 of the laminated sheet 21 against the peripheral edge 15 of the laminated sheet 21 causes
The peripheral edge of the plug 21 is deformed so as to closely follow the thermal deformation of the plug plate 12, so that a large tensile force is not generated between the synthetic resin film 23 on the lower side of the laminated sheet 21 and the plug plate 12. By doing so, the occurrence of peeling between the synthetic resin film 23 and the plug plate body 12 is prevented.

[0029]

[Effects of the Invention] Since the present invention has the above-described configuration, the following effects can be obtained. The cap main body is formed by integrally molding the assembled cylinder that achieves and maintains the assembly with the bottle and the lid that is hinged to this assembled cylinder with a synthetic resin material with excellent heat resistance and break resistance. Therefore, it is possible to obtain a hinge having high mechanical durability against repeated opening / closing operations of the lid, and to reduce the assembling force of the assembled cylinder against the bottle due to the heat of the content liquid heated and filled. In addition to this, it is possible to obtain a stable opening and closing operation of the lid over a long period of time, and it is possible to obtain a strong and stable assembly of the cap body to the bottle, thereby securely storing and holding the contents liquid in the bottle. It can be.

Since the densely welded fixing of the laminated sheet to the plug plate is achieved by the operation of forming the plug plate using the laminated sheet as an insert material, the peripheral end surface of the laminated sheet can be completely covered with the plug plate. This allows the aluminum foil exposed on the peripheral end surface of the laminated sheet to be tightly shut off against the content liquid, so that corrosion of the aluminum foil and deterioration of the content liquid can be prevented, thereby improving the quality of the content liquid. It can be maintained safely for a long time.

When the cap body is provided with an engaging cylinder piece and the engaging groove for engaging with the engaging cylinder piece is provided in the plug plate, the plug plate formed of a material having low heat resistance is used. Even if deformation due to the heat of the liquid occurs, the set mounting posture of the plug plate body with respect to the cap body can be firmly secured, so that the pull ring is pulled up and the breakage of the thin portion smoothly and smoothly. Can be achieved.

The laminated sheet is provided on the lower surface of the main body plate of the plug plate body.
Since the peripheral edge is located at the lower surface of the assembled peripheral portion of the main body plate facing the upper end surface of the bottle barrel and is fixed by welding, the entire opening of the bottle barrel will be covered, Thus, when the bottle is sealed, the high gas barrier properties of the laminated sheet can be effectively and effectively exerted.

[Brief description of the drawings]

FIG. 1 is an overall vertical sectional view showing an embodiment of an ejection cap with a lid in an open state according to the present invention.

FIG. 2

FIG. 1 is a partially enlarged longitudinal sectional view showing an enlarged main part of the embodiment shown in FIG.

FIG. 3

FIG. 1 is an enlarged longitudinal sectional view of an essential part showing an assembling structure of a peripheral edge of a laminated sheet and a peripheral edge of an assembly of a plug plate body in the embodiment shown in FIG.

FIG. 4 is an enlarged longitudinal sectional view of a main part showing another embodiment of an assembling structure of a peripheral end portion of a laminated sheet and an assembling peripheral portion of a plug plate body.

FIG. 5

FIG. 4 is a bottom view of the embodiment shown in FIG.

[0033]

[Explanation of symbols]

1; cap body; 2; assembled cylinder; 3; top plate;
4; fitting cylinder piece, 5; pouring cylinder, 6; engagement cylinder piece, 7;
Lid; 8; top wall; 9; peripheral wall; 10; sealing cylinder piece;
11: hinge, 12: plug plate, 13: body plate,
14: removing plate portion, 15: peripheral portion with assembling, 16: thin portion, 17: pull ring, 18: engaging groove, 19; sealing groove, 20: pressing piece, 21: laminated sheet, 2
2; aluminum foil, 23; synthetic resin film, 24; bottle, 2
5; mouthpiece.

Claims (4)

(57) [Scope of request for utility model registration] 1. A bottle (25) of a bottle (24) for hot-filling a content liquid.
A lid (7) is integrally provided on a cylindrical assembly cylinder (2) to be assembled to the cylinder via a hinge (11), and an inner collar-shaped top plate (3) is provided at the upper end of the assembly cylinder (2). The heat resistance and erecting the injection cylinder (5)
Cap body made of synthetic resin material with high breaking strength (1)
And a substantially flat main body plate (13) having a diameter substantially equal to the inner diameter of the upper end of the assembled cylinder (2), and an assembled peripheral portion (15) facing the lower surface of the top plate (3); in the removing plate portion opposed to the lower end opening of the exit tube (5) (14) breakage was defined by circumferentially provided with a thin portion (16), standing the pull ring (17) to said removing plate (14) A plug plate body (12) made of a synthetic resin material having good compatibility, and a synthetic resin film (23) made of a synthetic resin material compatible with the plug plate body (12) is coated on both surfaces of the aluminum foil (22). The lower end of the main body plate (13) of the plug plate (12), the end face of the plug plate (12)
A laminated sheet (21) which is densely welded and fixed by insert molding in the form of being covered with, and whose peripheral edge is located on the lower surface of the assembled peripheral portion (15) facing the upper end surface of the mouthpiece (25). , Consisting of a dispensing cap with a lid. 2. A short cylindrical engaging cylinder piece (6) projecting below the lower surface of the top plate (3) from the lower end of the pouring cylinder (5) of the cap body (1) is extended. An engagement groove (18) with which the engagement cylinder piece (6) engages is formed on the inner peripheral end of the upper surface of the assembled peripheral portion (15) of the plug plate body (13) facing the engagement cylinder piece (6). 2. The dispensing cap with a lid according to claim 1, wherein 3. A bottle of the assembled peripheral portion (15) of the plug plate (12).
A seal groove is provided on the lower surface facing the upper end surface of the barrel (25) of (24).
The dispensing cap with a lid according to claim 1 or 2, wherein (19) is provided around. 4. A large number of small holding pieces (20) for supporting the peripheral edge of the laminated sheet (21) from below are provided on the lower surface of the assembled peripheral part (15) of the plug plate body (12) in the circumferential direction. The pouring cap with a lid according to claim 1, 2, or 3, wherein the pouring cap is provided along the side.