JP2003165538A - Resin-made mouthpiece member for storage container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a resin-made mouthpiece member for a storage container which neither rusts nor generates a gap. <P>SOLUTION: This relates to a resin-made mouthpiece member to be fixed on the spout of a storage container. The member comprises a fixing part to be fixed on a mouthpiece member mounting part formed on the peripheral edge of the spout of the container on its bottom, a caulking protrusive part formed protrusively on the inside edge of the fixing part, and a crown cap mounting part formed on the top of a mouthpiece member main body having a larger diameter. The fixing part is inserted and placed on a mouthpiece member placing part formed recessed on the mouthpiece member mounting part of the container. By erecting the inside peripheral edge of the placing part of the container vertically and by folding the top of the inside peripheral edge outward, the caulking protrusive part inserted and placed is caulked and fixed by the folded top of the inside peripheral edge to be integrally fixed on the spout of the storage container. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mouthpiece member for a container to which a lid is attached, and particularly when the ceiling portion is in a convex state, a plurality of claw pieces on the side wall are used to grip the protruding container mouth of the container from the outside. Attach the crown lid that seals the mouth and opens the claw piece by pushing the ceiling part inward to release the grasped state of the container mouth and remove it from the container mouth. The present invention relates to a resin mouthpiece member of a storage container that forms a container opening of a storage container such as a can of can.

[0002]

2. Description of the Related Art In the prior art, a container mouth to which a crown cover is attached includes a metal mouthpiece member coated with a synthetic resin film or an enamel film, and a synthetic resin mouthpiece member 50 shown in FIG.

[0003]

(1) Resin Coated The metal die member has a drawback that the film is peeled off by the nail when the crown cover is pressed and closed to cause rust. (2) In the conventional resin mouthpiece member 50, the main body is pushed inside the mouthpiece member mounting portion 52 of the top plate 51, and the adhesive force is obtained by the elastic force of the resin member. Since the resin mouthpiece member 50 has a structure in which the side wall of the resin mouthpiece member 50 is pressed against the inner wall of the mouthpiece member mounting portion 52 by the elastic repulsive force to secure the close contact force, when the repulsive force for increasing the close contact force is to be obtained more strongly. A large amount of contraction is caused, which in turn causes strain and creates a gap. Therefore, since only a weak and shallow adhesive force due to the weak elastic force can be secured, there is a drawback that the resin mouthpiece member deteriorates with the lapse of time, loses the elastic force, and a gap is generated, which facilitates removal.

The present invention has been made in view of the problems of the prior art as described above, and its purpose is to prevent rust and to prevent generation of gaps due to passage of time or temperature change. It is an object of the present invention to provide a resin mouthpiece member that realizes a close contact force and has a solid mounting structure that does not fall out.

[0005]

In order to achieve the above-mentioned object, the present invention is constructed as follows. The resin mouthpiece member of the storage container according to the first aspect of the present invention includes a fixing portion fixed to a mouthpiece member mounting portion provided at a lower portion of the resin mouthpiece member at a periphery of the storage container pouring outlet, and an inner edge of the fixing portion. It consists of a caulking projection that is formed to project and a crown cover mounting portion that is formed by expanding the diameter on the top of the resin mouthpiece member main body, and the fixing portion is recessed in the mouthpiece member attachment portion of the storage container. The fitting member is placed on the fitting member mounting portion, the inner peripheral edge of the fitting member mounting portion of the storage container is vertically raised, and the upper portion of the inner peripheral edge is bent outward, whereby the fitting mounting is performed. Another feature of the present invention is that the caulking protrusion of the resin die member is caulked and fixed to the accommodating container spout by the upper bent portion of the inner peripheral edge.

The resin mouthpiece member of the container according to the second aspect of the present invention includes a fitting groove formed between the inner wall portion and the outer wall portion, and a dropout formed inside the outer wall of the fitting groove. A stopper part for prevention and a crown cover mounting part formed by expanding the diameter of the upper part of the resin mouthpiece member, and a fitting groove of the resin mouthpiece member is formed to project on the top plate of the storage container. The housing is fitted into a tip protruding portion formed by bending the mouthpiece member mounting portion outwardly, formed inside the outer wall of the fitting groove, and fitted by a stopper and an outer surface of the inner wall. It is characterized in that the mouthpiece member mounting portion of the container is strongly clamped and fixed.

According to a third aspect of the present invention, in the resin mouthpiece member of the storage container according to the first or second aspect of the invention, the resin mouthpiece member is opened to the outside having elastic force upward on the ceiling portion of the crown lid mounting portion of the resin mouthpiece member. It is characterized in that a contact piece is formed, and the opening is sealed by pressure contact between the contact piece and the lower surface of the crown lid detachably attached to the resin mouthpiece member.

A fourth aspect of the present invention is the resin die member for a storage container according to the second or third aspect of the present invention, wherein an annular protrusion is formed on the inner side surface of the inner side wall of the resin die member, and the lower end of the inner side wall is formed. It is characterized by forming a horizontal shelf that extends horizontally inside.

A fifth aspect of the present invention is the resin mouthpiece member for a storage container according to the second or third aspect of the invention, wherein the inner wall of the resin die member extends linearly downward and the inner side surface of the inner wall is flattened. And a taper portion is formed on the lower end outer surface of the inner wall.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

<First Embodiment> In the first embodiment of the present invention shown in FIGS. 1 to 4, reference numeral 1 denotes a storage container such as a one-tower can, a pail can, and a one-liter can.
Is a storage container body 2, a container port 3 provided on the top plate 17 of the storage container 1, a cap member mounting portion 4 forming the container port 3, and a cap member mounting portion 4. It is composed of a resin mouthpiece member 5 made of a synthetic resin member such as polyethylene, and a crown cap 7 having a packing 6 attached to the resin mouthpiece member 5 to seal the container mouth 3. Of course, it goes without saying that there are various forms such as not only the crown cover but also the screw cover being attached by providing a screw on the cover attaching portion.

The resin mouthpiece member 5 is fitted in the resin mouthpiece member body 8 and the mouthpiece member mounting portion 9 formed in the lower portion of the mouthpiece member body 8 and having the recess formed in the mouthpiece member mounting portion 4. The fixed part 10 to be placed and the protruding part formed inside the fixed part 10 are folded up outward so as to also serve as the inner wall of the mouthpiece member mounting part 9 of the storage container, and the upper part is further bent outward. The caulking projection 12 that is pressed and fixed to the caulking portion 11 from above and the constricting portion 14 that is grasped by the grasping claws 13 of the crown lid 7 formed on the upper side of the mouthpiece member body 8 when the crown upper portion of the crown lid 7 is convex. Lid attaching part 15 having outside
It consists of

The step of attaching the resin mouthpiece member 5 to the mouthpiece member attaching portion 4 of the storage container is as shown in FIG. FIG. 4-A: A portion where the container port 3 of the top plate 17 of the storage container is provided is shallowly recessed to form a recess 20 in the whole. FIG. 4-B: The convex portion 21 is formed inside the concave portion 20 while leaving the base member mounting portion 9. FIG. 4-C: The protrusion 21 is further pushed up, and the ceiling portion is extracted to form the opening 22 and the rising portion 23. FIG. 4-D: The fixing portion 10 of the resin mouthpiece member 5 is fitted into the mouthpiece member placing portion 9 of the storage container and placed to mount the resin mouthpiece member 5.
Is set on the base member mounting portion 4. FIG. 4-F: The upper portion 23 of the base member mounting portion 4 is wound on the outer side to form the caulking portion 11, and the caulking portion 11 is pushed downward so that the caulking protrusion portion 12 is strongly crimped. Then, the resin mouthpiece member 5 is fixed and fixed to the mouthpiece member mounting portion 4 of the storage container. In the following description, the same components as those described in the present embodiment are designated by the same reference numerals and the description thereof will be omitted.

<Second Embodiment> In the second embodiment of the present invention shown in FIGS. 5 to 6, reference numeral 25 denotes a storage container. This storage container 25 is made of the resin of the storage container 1 of the first embodiment. A resin-made die member 26 is provided instead of the die-making member 5. The resin mouthpiece member 26 is formed by forming, on the head of the lid attachment portion 15, an outwardly contacting piece 27 that is integrally molded with the resin mouthpiece member body 8 and has an elastic force upward. The contact piece 27 is configured so that the top plate 28 of the crown cover 7 directly presses and seals. For better sealing, it is preferable to provide two pieces for opening the contact piece inside and outside. With such a structure, it is possible to realize a crown cap closed structure without using packing and reduce the cost. Further, when the stored solution is poured out, the liquid can be drained well, so that the dripping of the solution to the outside can be prevented. Although not shown, it goes without saying that the sealing film having the finger hook ring can be provided inside by integrally molding with the resin mouthpiece member.

<Third Embodiment> In the third embodiment of the present invention shown in FIGS. 7 and 8, reference numeral 43 is a container.
This storage container 43 is the one in which the base member mounting portion of the storage container 1 described above is replaced with a flat base member mounting portion 44. Even with such a structure, sufficient adhesion and solidity can be achieved. The steps from the formation of the base member mounting portion 4 to the mounting of the resin base member 8 are as shown in FIG. 8, and the recess 20 and the base member mounting portion 9 in the process of the first embodiment shown in FIG. There is no formation.

<Embodiment 4> In the embodiment 4 of the present invention shown in FIG. 9, reference numeral 30 denotes a storage container, and the storage container 30 is provided on the storage container main body 2 and the top plate 17 of the storage container main body 2. The container opening 31 is provided, and a cap member mounting portion 32 that forms the container opening 31. A resin mouthpiece member 33 made of a synthetic resin member such as polyethylene is attached to the mouthpiece member attachment portion 32, and a crown cap 7 having a packing 6 for sealing the container mouth 31 is attached to the resin mouthpiece member 33.

The resin mouthpiece member 33 includes a mouthpiece member body 35 made of synthetic resin, and a container mouth 31 provided on the top plate 17 of the storage container 30 provided below the mouthpiece member body 35.
It has a fitting groove 39 into which a tip projection portion 37 formed by winding the tip portion of a rising portion 36 of the mouthpiece member mounting portion 32 forming the above is fitted. The fitting groove 39 is formed between the outer side wall 40 and the inner side wall 42, and the tip end protruding portion 3 of the fitting member mounting portion 32 fitted inside the outer side wall 40.
7 has a stopper portion 41 that is formed so as to project inside so as to prevent it from coming off and obtain strength. Fitting groove 3
By strongly sandwiching the mouthpiece member mounting portion 32 fitted between the outer side wall 40 and the inner side wall 42 of 9, the contact and sealing force is strengthened. An annular protrusion 45 is formed on the upper portion of the inner side surface of the inner side wall 42 of the resin mouthpiece member 33. The annular protrusion 45 is formed to engage the lower end of the packing 6 of the crown cover 7 and enhance the sealing effect. It Inner wall 42
The lower end portion of the is bent inward by 90 degrees to form a horizontal shelf portion 46, and is formed in order to prevent a nozzle for taking in and out the stored liquid from the storage container 30 from dropping into the storage container 30.

<Embodiment 5> In Embodiment 5 of the present invention shown in FIG. 10, reference numeral 30 denotes a storage container, which is a storage container body 2 and a thin metal plate member of the storage container body 2. Container opening 31 provided on the top plate 17
And a base member mounting portion 32 forming the container opening 31. A resin mouthpiece member 33 made of a synthetic resin member such as polyethylene is attached to the mouthpiece member attachment portion 32, and a crown cap 7 having a packing 6 for sealing the container mouth 31 is attached to the resin mouthpiece member 33.

The resin mouthpiece member 33 is a top plate 17 made of a synthetic resin mouthpiece member body 35 and a metal thin plate member of the storage container 30 provided below the mouthpiece member body 35.
A base member attachment portion 32 forming a container mouth 31 provided in
Has a fitting groove 39 into which a tip protruding portion 37 formed by winding the tip portion of the rising portion 36 into the outside is fitted.
The fitting groove 39 is formed between the outer side wall 40 and the inner side wall 42, and is formed on the inner side of the outer side wall 40 so as to project inside the tip projecting portion 37 of the fitted die member mounting portion 32. Stopper part 41 to prevent loosening and to obtain strength
Have. By strongly sandwiching the fitting member mounting portion 32, which is fitted by the outer side wall 40 and the inner side wall 42 of the fitting groove 39, the structure is such that the close contact / sealing force is strengthened. The inner side wall 42 of the resin-made gold member 33 linearly extends downward,
The inner side surface of the inner side wall 42 is made flat, and a tapered portion 47 is formed on the outer side surface of the lower end of the inner side wall 42. By making the inner side wall of the resin mouthpiece member 33 linearly extend downward and forming the taper portion 47 on the outer side surface of the lower end of the inner side wall,
Resin mouthpiece member 33 to the mouthpiece member mounting portion 32 of the storage container
Mounting becomes easier, and the inner side wall 42 of the resin mouthpiece member 33 is
Since the inner surface of the container is flat, the liquid can be easily taken in and out of the storage container. For example, the shape of the tip protrusion 37 formed by winding the tip end of the rising portion 36 of the mouthpiece member attachment portion 32 of the container 30 to which the resin mouthpiece member of Embodiments 4 and 5 is attached is shown in FIG. It is like that.

[0020]

As described above, the present invention has the following effects. According to the configuration of the invention described in claim 1, the fixing portion is mounted on the mounting portion of the mouthpiece member mounting portion, and the crimping projection is crimped by the crimping portion (the mounting portion and the crimping portion are clamped by crimping). That is, since the structure is crimped and fixed in a state in which the resin mouthpiece member cannot move, it has a container mouth that does not cause problems in adhesion and adhesion with deterioration over time and temperature changes. Realize a storage container. Also, since it is a synthetic resin member,
It does not generate rust.

According to the structure of the second aspect of the present invention, since the fitting member fitting portion fitted by the outer side wall and the inner side wall of the fitting groove is strongly sandwiched, the adhesion is strengthened as compared with the conventional one. Moreover, since the closely contacted portions are at least the inner wall and the outer wall, a resin mouthpiece member in which a gap is unlikely to occur is realized. Further, since it is a synthetic resin member, it does not generate rust.

According to the third aspect of the present invention, the ring-shaped contact piece on the ceiling of the resin mouthpiece member and the back surface of the crown cover are pressed against each other to form a sealing surface, so that packing is not attached to the crown cover. Can prevent liquid leakage.

According to the fourth aspect of the present invention, the annular projection on the inner surface of the inner wall is attached to the crown cover, and the lower end of the packing, a part of which is inserted into the resin mouthpiece member, engages with the annular projection. As a result, a sealing surface is formed to prevent liquid leakage, and the horizontal shelf at the lower end of the inner side wall prevents the nozzle for taking in and out the stored liquid from the storage container from falling into the storage container.

According to the fifth aspect of the invention, the resin mouthpiece member can be easily attached to the mouthpiece member mounting portion of the storage container, and the inner side surface of the inner side wall of the resin mouthpiece member is a flat surface. The liquid can be easily taken in and out of the storage container.

[Brief description of drawings]

FIG. 1 is a partial center vertical cross-sectional view of a storage container showing a state where a resin mouthpiece member according to a first embodiment of the present invention is attached and fixed to a mouthpiece member attaching portion.

FIG. 2 is a plan view of a resin mouthpiece member according to the first embodiment of the present invention.

FIG. 3 is a partial central vertical cross-sectional view of the storage container showing a state in which the crown cover and the packing according to the first embodiment of the present invention are attached.

FIG. 4 is a container port forming process diagram according to the first embodiment of the present invention.

FIG. 5 is a partial central vertical cross-sectional view of the storage container showing a state where the resin mouthpiece member according to the second embodiment of the present invention is attached and fixed to the mouthpiece member attaching portion.

FIG. 6 is a partial central vertical cross-sectional view of a storage container showing a state in which a crown cover and packing according to the second embodiment of the present invention are attached.

FIG. 7 is a partial central longitudinal sectional view of the storage container showing a state where the resin mouthpiece member according to the third embodiment of the present invention is attached and fixed to the mouthpiece member attaching portion.

FIG. 8 is a container mouth forming process diagram of the third embodiment of the present invention.

FIG. 9 is a partial central vertical cross-sectional view of the storage container showing a state where the resin mouthpiece member according to the fourth embodiment of the present invention is attached and fixed to the mouthpiece member attaching portion.

FIG. 10 is a partial central vertical cross-sectional view of a storage container showing a state where a resin mouthpiece member according to Embodiment 5 of the present invention is attached and fixed to a mouthpiece member attaching portion.

FIG. 11 is a view showing the shape of a base member mounting portion of a storage container to which the resin base member of Embodiments 4 and 5 of the present invention is attached.

FIG. 12 is a partial central vertical cross-sectional view of a storage container showing a state where a conventional resin mouthpiece member is attached and fixed to a mouthpiece member attaching portion.

[Explanation of symbols]

1 ... Storage container 2 ... Storage container body 3 ... Container mouth 4 ... Clasp member mounting part 5 ... Resin base member 6 ... packing 7 ... Crown lid 8: Main body 9 ... Base for mounting base 10: Fixed part 11 ... Caulking part 12 ... Caulking protrusion 13-Grip claw 14: Constriction section 15 ... Lid mounting part 17 ... Top plate 20 ... Recess 21 ... Convex part 22 ... Opening 23 ... Rise 25 ... Storage container 26: Resin base member 27 ... Contact piece 28-top plate 30 ... Storage container 31 ... Container mouth 32 ... Clasp member mounting part 33 ... Resin base member 35 ... Base material 36 ... Rise 39: Fitting groove 40 ... Outer wall 41 ・ ・ ・ Stopper part 42 ... Inside wall 43 ... Storage container 44 ... Mounting part for base 45-annular protrusion 46 ... Horizontal shelf 47 ... Tapered part 50 ... Resin base member 51-top plate 52 ... Clasp member mounting part 53 ・ ・ ・ Stopper part

Claims (5)

[Claims] 1. A resin mouthpiece member fixed to a storage container pouring outlet, wherein the resin mouthpiece member has a fixing portion fixed to a mouthpiece member mounting portion provided at a peripheral portion of the storage container pouring outlet, The caulking projection formed to project from the inner edge of the fixing portion and a crown lid mounting portion formed by expanding the diameter of the resin-made mouthpiece member are used. By fitting and mounting in a mouthpiece member placing portion formed to be recessed in the member attaching portion, the inner peripheral edge of the mouthpiece member placing portion of the storage container is vertically raised, and the upper part of the inner peripheral edge is bent outward, A resin mouthpiece member for a storage container, characterized in that the caulking projection portion of the fitting member body mounted and mounted is fixed to the storage container pouring outlet by caulking and fixing the upper bent portion of the inner peripheral edge. 2. A resin mouthpiece member fixed to a spout of a storage container, wherein the resin mouthpiece member includes a fitting groove formed between an inner wall portion and an outer wall portion, and an outside of the fitting groove. A stopper portion formed on the inside of the wall for preventing slippage, and a crown lid attachment portion formed by expanding the diameter of the upper portion of the resin mouthpiece member, and a fitting groove of the resin mouthpiece member, The tip of the mouthpiece member mounting portion projectingly formed on the top plate of the storage container is bent to the outside and fitted into the tip protruding portion, which is formed inside the outside wall of the fitting groove and outside the stopper and the inside wall. A resin mouthpiece member for a storage container, characterized in that the mouthpiece member mounting portion of the storage container fitted by the side surface is strongly clamped and fixed. 3. A crown cap detachably attached to the resin base member by forming an outwardly contacting piece having an upward elastic force on the ceiling portion of the crown cap mounting portion of the resin base member. The resin mouthpiece member for a storage container according to claim 1 or 2, wherein the opening is sealed by pressure contact between the lower surface and the contact piece. 4. The annular protrusion is formed on the inner side surface of the inner side wall of the resin die member, and the horizontal shelf portion extending horizontally inward is formed at the lower end of the inner side wall.
Alternatively, the resin-made base member of the storage container according to the item 3. 5. An inner side wall of the resin metal member linearly extends downward, the inner side surface of the inner side wall is flat, and a taper portion is formed on an outer side surface of a lower end of the inner side wall. A resin mouthpiece member for the storage container according to claim 2.