JP3701255B2 - Plastic cap member for storage container - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cap member for a container to which a lid is attached. In particular, when the ceiling portion is in a convex state, the container port from which the container protrudes is gripped from the outside by a plurality of claw pieces on the side wall to seal the container port, and the ceiling A dome suitable for mounting a crown lid that allows the claw pieces to be opened outwardly by pressing a concave portion to release the grasping state of the container mouth and remove it from the container mouth. The present invention relates to a resin cap member of a storage container that forms a container port of a storage container such as a can.
[0002]
[Prior art]
In the prior art, the container mouth for attaching the crown lid has a metal base member coated with a synthetic resin film or an enamel film, and a synthetic resin base member 50 shown in FIG.
[0003]
[Problems to be solved by the invention]
(1) The resin-coated metal base member has a drawback that the film is peeled off by a nail when the crown lid is pressed and closed, and rust is generated there.
(2) The conventional resin cap member 50 is one in which the main body is pushed into the inner side of the cap member mounting portion 52 of the top plate 51, and an adhesive force is obtained by the elastic force of the resin member.
Since the resin base member 50 has a structure in which the side wall is pressed against the inner wall of the base member mounting portion 52 by the elastic repulsive force to secure a close contact force, an attempt is made to obtain a stronger repulsive force for increasing the close contact force. A lot of contraction will be taken, and in return, distortion will occur and a gap will be formed. Therefore, since only a weak and shallow adhesion force due to weak elastic force can be secured, the resin base member deteriorates over time, and loses elastic force, resulting in a gap, which makes it easy to come off.
[0004]
The present invention has been made in view of the above-described problems of the prior art, and its purpose is to provide a strong adhesion that does not rust and does not generate gaps due to the passage of time or temperature. It is an object of the present invention to provide a resin base member having a rigid mounting structure that is realized and does not have to worry about falling off.
[0005]
[Means for Solving the Problems]
In order to achieve the above-described object, the present invention is configured as follows.
The resin cap member of the storage container according to the first aspect of the present invention is a resin cap member fixed to the storage container spout, and the resin cap member is attached to the periphery of the storage container spout at the bottom thereof. A fixed portion fixed to the portion, a caulking projection formed to protrude on the inner edge of the fixed portion, and a crown lid mounting portion formed by expanding the diameter of the resin cap member, The fixed portion is placed in a base member mounting portion that is recessed in the base member mounting portion of the storage container, and the inner peripheral edge of the base member mounting portion of the storage container is vertically raised, and the inner peripheral edge The upper part of the rising portion is bent outward to form a sandwiching upper surface, and the tip thereof is further bent inwardly and brought into contact with the rising portion of the inner peripheral edge, thereby Folded part with a thickness less than the thickness The crown lid mounting portion is formed by expanding the diameter of the upper portion while keeping the upper surface for clamping in the bent portion in a non-contact state, and the bottom surface of the base member mounting portion and the crown lid mounting portion are After the clamping upper surface of the bent portion that has been brought into non-contact is clamped, the clamping upper surface of the cap member body that has been mounted is strongly crimped by pressing the clamping upper surface downward. It is characterized by being fixed to the container outlet by pressing down and crimping.
[0006]
The resin cap member of the storage container according to the second aspect of the present invention is provided with a fitting groove formed between the inner wall portion and the outer wall portion, and for preventing the omission formed inside the outer wall of the fitting groove. A cap portion formed by expanding the diameter of the upper portion of the resin base member, and a cap groove formed on the top plate of the storage container. A cap of the storage container that is inserted into the protruding end formed by bending the front end of the member mounting portion outward and is formed inside the outer wall of the insertion groove and is inserted by the stopper and the outer surface of the inner wall. The member attaching portion is strongly clamped and fixed.
[0007]
According to the third aspect of the present invention, in the resin cap member of the storage container according to the first or second aspect of the present invention, an adhesive piece that opens outwardly and has an elastic force is provided on the ceiling portion of the crown cover mounting portion of the resin cap member. The opening is sealed by press-contacting the lower surface of the crown lid that is formed and detachably attached to the resin cap member and the contact piece.
[0008]
According to a fourth aspect of the present invention, in the resin cap member of the storage container of the second or third invention, an annular protrusion is formed on the inner side surface of the inner wall of the resin cap member, and the inner side is horizontally inward at the lower end of the inner wall. It is characterized in that a horizontal shelf extending in the direction is formed.
[0009]
According to a fifth aspect of the present invention, in the resin cap member of the storage container according to the second or third aspect of the invention, the inner wall of the resin metal member extends linearly downward, the inner surface of the inner wall is flat, A taper portion is formed on the lower outer surface of the wall.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
[0011]
<Embodiment 1>
In Embodiment 1 of the present invention shown in FIGS. 1 to 4, reference numeral 1 denotes a storage container such as a canister, a pail can, or a 1 liter can. The storage container 1 includes a storage container body 2 and a storage container. A container port 3 provided on one top plate 17; a cap member attaching portion 4 forming the container port 3; and a resin made of a synthetic resin member such as polyethylene attached to the cap member attaching portion 4. It consists of a cap member 5 and a crown lid 7 having a packing 6 attached to the resin cap member 5 and sealing the container port 3.
Of course, it goes without saying that there are various forms such as not only the crown lid but also a screw lid attached by providing a screw on the lid attaching portion.
[0012]
The resin cap member 5 is placed in a resin cap member body 8 and a cap member mounting portion 9 formed in the lower portion of the cap member main body 8 and having a recess formed in the cap member mounting portion 4. And a caulking part 11 which is formed so as to protrude from the inside of the fixing part 10 and which is folded outward and bent upward so as to serve as the inner wall of the base member mounting part 9 of the storage container. The crimping protrusion 12 that is pressed and fixed from above, and the gripping claws 13 of the crown lid 7 formed on the upper side of the base member body 8 have the constricted portion 14 that the top of the crown lid 7 grips in a convex state outward. And a lid attaching portion 15 having the same.
[0013]
The process of attaching the resin cap member 5 to the cap member mounting portion 4 of the storage container is as shown in FIG.
FIG. 4-A: A portion where the container opening 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: Convex portion 20 is formed with convex portion 21 on the inside leaving base member mounting portion 9.
FIG. 4-C: The convex portion 21 is further pushed up, the top portion is extracted, and the opening 22 and the upright portion 23 are formed.
FIG. 4-D: The fixing portion 10 of the resin cap member 5 is inserted into the cap member mounting portion 9 of the storage container, and the resin cap member 5 is set on the cap member mounting portion 4.
FIG. 4-F: The caulking portion 11 is formed by winding the caulking portion 11 on the upright portion 23 of the base member mounting portion 4 and forming the caulking portion 11 downward. The resin cap member 5 is fixed and fixed to the cap member mounting portion 4 of the storage container.
In the following description, the same components as those described in the present embodiment are denoted by the same reference numerals, and description thereof is omitted.
[0014]
<Embodiment 2>
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 resin instead of the resin cap member 5 of the configuration of the storage container 1 of the first embodiment. A base member 26 is provided.
The resin cap member 26 is formed by forming, on the head of the lid mounting portion 15, a contact piece 27 that is integrally formed with the resin cap member main body 8 and that opens to the outside and has an elastic force.
The contact piece 27 is pressed against and directly sealed by the top plate 28 of the crown lid 7. In order to further improve the sealing, it is preferable to have two pieces that open the contact piece inside and outside.
By setting it as such a structure, the crown lid sealing structure which does not use packing is implement | achieved, and cost can be reduced. Further, since the drainage of the stored solution can be improved, the dripping of the solution to the outside can be prevented.
Although not shown, it goes without saying that a sealing film having a finger ring can be provided on the inside by integral molding with a resin cap member.
[0015]
<Embodiment 3>
In FIG. 7 and FIG. 8 according to the third embodiment of the present invention, reference numeral 43 denotes a storage container, and the storage container 43 has a base member mounting portion having a flat configuration as the base member mounting portion configuration of the storage container 1 described above. 44. Even with such a configuration, sufficient adhesion and firmness are realized.
The process of attaching the resin cap member 8 from the formation of the cap member mounting portion 4 is as shown in FIG. 8, and the concave portion 20 and the cap member mounting portion 9 of the step of Embodiment 1 shown in FIG. There is no formation.
[0016]
<Embodiment 4>
In Embodiment 4 of the present invention shown in FIG. 9, reference numeral 30 denotes a storage container, and the storage container 30 includes a storage container body 2, a container port 31 provided on the top plate 17 of the storage container body 2, It consists of a cap member mounting portion 32 that forms the container port 31. A resin cap member 33 made of a synthetic resin member such as polyethylene is mounted on the cap member mounting portion 32, and a crown lid 7 having a packing 6 for sealing the container port 31 is mounted on the resin cap member 33.
[0017]
The resin base member 33 is a base member mounting body that forms a base member 35 made of a synthetic resin and a container port 31 provided on the top plate 17 of the storage container 30 provided below the base member body 35. A tip protrusion 37 formed by winding the tip of the upright portion 36 of the portion 32 outward has a fitting groove 39 for fitting. The insertion groove 39 is formed between the outer wall 40 and the inner wall 42, and is formed so as to protrude inside the outer wall 40 so as to be inside the tip protrusion 37 of the cap member mounting portion 32 that is inserted. It has a stopper portion 41 for preventing cracks and obtaining strength. By tightly sandwiching the base member mounting portion 32 that is inserted between the outer wall 40 and the inner wall 42 of the insertion groove 39, the contact / sealing force is enhanced. An annular protrusion 45 is formed on the upper part of the inner side surface of the inner wall 42 of the resin cap member 33. The annular protrusion 45 is formed to engage the lower end of the packing 6 of the crown lid 7 and enhance the sealing effect. The The inner wall 42 is bent 90 degrees inward to form a horizontal shelf 46, and is formed to prevent the nozzle for taking in and out the storage liquid from the storage container 30 from falling into the storage container 30.
[0018]
<Embodiment 5>
In Embodiment 5 of the present invention shown in FIG. 10, 30 is a storage container, and this storage container 30 is provided on the storage container main body 2 and the top plate 17 made of a metal thin plate member of the storage container main body 2. It comprises a container port 31 and a base member mounting portion 32 that forms this container port 31. A resin cap member 33 made of a synthetic resin member such as polyethylene is mounted on the cap member mounting portion 32, and a crown lid 7 having a packing 6 for sealing the container port 31 is mounted on the resin cap member 33.
[0019]
The resin cap member 33 includes a cap member body 35 made of synthetic resin and a container port 31 provided on the top plate 17 made of a metal thin plate member of the storage container 30 provided below the cap member body 35. The tip projecting portion 37 formed by winding the tip portion of the upright portion 36 of the base member mounting portion 32 forming the outer side into the outside has a fitting groove 39 for fitting. The insertion groove 39 is formed between the outer wall 40 and the inner wall 42, and is formed so as to protrude inside the outer wall 40 so as to be inside the tip protrusion 37 of the cap member mounting portion 32 that is inserted. It has a stopper portion 41 for preventing cracks and obtaining strength. By tightly sandwiching the base member mounting portion 32 that is inserted between the outer wall 40 and the inner wall 42 of the insertion groove 39, the contact / sealing force is enhanced. The inner wall 42 of the resin metal member 33 extends linearly downward, the inner surface of the inner wall 42 is flat, and a tapered portion 47 is formed on the outer surface of the lower end of the inner wall 42. By forming the inner wall of the resin cap member 33 linearly downward and forming the tapered portion 47 on the outer surface of the lower end of the inner wall, the resin cap member 33 to the cap member mounting portion 32 of the storage container is formed. Since the inner side surface of the inner side wall 42 of the resin cap member 33 is a flat surface, the liquid in and out of the storage container can be easily taken in and out.
For example, the shape of the tip protrusion 37 formed by winding the tip of the upright portion 36 of the cap member mounting portion 32 of the storage container 30 to which the resin cap member of Embodiments 4 and 5 is attached is shown in FIG. It is like that.
[0020]
【The invention's effect】
Since the present invention has been described above, the following effects can be obtained.
According to the configuration of the invention described in claim 1, the fixing portion is mounted on the mounting portion of the base member mounting portion, and the crimping protrusion is crimped and crimped with the crimping portion (clamping between the mounting portion and the crimping portion). In other words, since it is a structure in which the resin cap member is crimped and fixed in a state where it cannot move, it has a container mouth that does not cause problems in adhesion and adhesion force with the degree of deterioration over time and change in temperature. Realize the storage container.
Moreover, since it is a synthetic resin member, it does not generate rust.
[0021]
According to the configuration of the invention of claim 2, since it is a configuration that strongly clamps the base member mounting portion that is inserted between the outer wall and the inner wall of the insertion groove, the adhesion force is strengthened compared to the conventional one, and Since the close contact portion is at least the inner wall and the outer wall, a resin cap member that does not easily generate a gap is realized.
Moreover, since it is a synthetic resin member, it does not generate rust.
[0022]
According to the configuration of the invention described in claim 3, since the annular contact piece of the ceiling portion of the resin cap member and the back surface of the crown lid are pressed against each other to form a seal surface, liquid leakage can be achieved even if no packing is attached to the crown lid. Can be prevented.
[0023]
According to the configuration of the invention according to claim 4, the annular projection on the inner side surface of the inner wall is mounted on the crown lid, and the lower end of the packing into which a part thereof is inserted into the resin cap member and the annular projection are engaged and sealed. A horizontal shelf at the lower end of the inner wall prevents the nozzle for taking in / out the storage liquid from falling into the storage container.
[0024]
According to the fifth aspect of the present invention, the mounting of the resin base member to the base member mounting portion of the storage container is facilitated, and the inner side surface of the inner side wall of the resin base member is a flat surface. The liquid inside and out becomes easy.
[Brief description of the drawings]
FIG. 1 is a partial central longitudinal sectional view of a storage container showing a state where a resin cap member according to a first embodiment of the present invention is mounted and fixed to a cap member mounting portion.
FIG. 2 is a plan view of a resin cap member according to the first embodiment of the present invention.
FIG. 3 is a partial central longitudinal sectional view of a storage container showing a state in which a crown lid and packing according to Embodiment 1 of the present invention are attached.
FIG. 4 is a process chart for forming a container mouth according to the first embodiment of the present invention.
FIG. 5 is a partial central longitudinal sectional view of a storage container showing a state in which a resin base member according to a second embodiment of the present invention is attached and fixed to a base member attaching portion.
FIG. 6 is a partial central longitudinal sectional view of a storage container showing a state where a crown lid and packing according to a second embodiment of the present invention are attached.
7 is a partial central longitudinal sectional view of a storage container showing a state in which a resin cap member according to a third embodiment of the present invention is mounted and fixed to a cap member mounting portion. FIG. 8 is a container mouth according to a third embodiment of the present invention. FIG.
FIG. 9 is a partial central longitudinal sectional view of a storage container showing a state where a resin cap member according to a fourth embodiment of the present invention is mounted and fixed to a cap member mounting portion.
FIG. 10 is a partial central longitudinal sectional view of a storage container showing a state where a resin cap member according to a fifth embodiment of the present invention is mounted and fixed to a cap member mounting portion.
FIG. 11 is a view showing the shape of a cap member mounting portion of a storage container to which a resin cap member according to Embodiments 4 and 5 of the present invention is attached. FIG. 12 shows a conventional resin cap member attached to the cap member mounting portion. Partial center vertical section of the storage container showing the fixed state 【Explanation of symbols】
DESCRIPTION OF SYMBOLS 1 ... Storage container 2 ... Storage container main body 3 ... Container port 4 ... Base member attachment part 5 ... Resin base member 6 ... · Packing 7 ··· Crown cover 8 ··· Base member body 9 ··· Base member mounting portion 10 ··· Fixing portion 11 ··· Caulking portion 12 ··· ································································································································ AND・ Convex portion 22... Opening 23... Upright portion 25... Storage container 26. Top plate 30 ··· Storage container 31 ··· Container opening 32 ··· Base member mounting portion 33 ··· Plastic base member 35 ··· Base member body 36 ··· ... Upper part 39 ... · Insertion groove 40 · · · outer wall 41 · · · stopper portion 42 · · · inner side wall 43 · · · storage container 44 · · · cap member mounting portion 45 · · · ... Ring 46 ... Horizontal shelf 47 ... Taper 50 ... Resin base 51 ... Top plate 52 ... Base attachment 53 ...... Stopper

Claims (5)

In the resin base member fixed to the storage container spout, the resin base member is fixed to a base member mounting portion provided at the periphery of the storage container spout at a lower portion thereof, and an inner side of the fixed portion. A caulking protrusion formed on the edge and a crown lid mounting portion formed by expanding the diameter of the resin cap member, and the fixing portion is recessed in the cap member mounting portion of the storage container. The inner periphery of the base member mounting portion of the storage container is vertically raised, and the upper surface of the inner peripheral edge is bent outward from the upper portion of the inner peripheral edge. And forming a bent portion having a thickness less than the thickness of the caulking projection by bending the tip further inward and downward and bringing it into contact with the rising portion of the inner peripheral edge, The crown lid mounting part is The upper surface for clamping in the bent portion where the bottom surface of the base member mounting portion and the crown lid mounting portion are not in contact with each other are formed in a non-contact manner with the upper surface for clamping in the portion while being non-contacted And holding the crimping protrusions of the cap member body that is mounted and pressed tightly so that the upper surface for clamping is pressed downward, and the container is fixed by caulking. A resin cap member for a storage container, which is fixed to a spout. In the resin cap member fixed to the storage container spout, the resin cap member is formed inside the outer wall of the insertion groove and the insertion groove formed between the inner wall portion and the outer wall portion. A stopper portion for preventing the resin cap member from being removed, and a crown lid mounting portion formed by expanding the upper portion of the resin cap member, and the insertion groove of the resin cap member is used as a top plate of the storage container. The tip of the base member mounting portion that is formed to protrude is fitted into the tip protruding portion formed by bending outward, and is formed on the inside of the outer wall of the fitting groove, and is inserted by the stopper and the outer surface of the inner wall. A resin cap member for a storage container, wherein the cap member mounting portion of the storage container is strongly clamped and fixed. A bottom surface of the crown lid that is detachably attached to the resin base member and the contact piece are formed on the ceiling portion of the crown lid mounting portion of the resin base member, and a contact piece that is open to the outside and has elastic force. The resin cap member for a storage container according to claim 1 or 2, wherein the opening is sealed by pressure contact with the container. The storage according to claim 2 or 3, wherein an annular protrusion is formed on the inner side surface of the inner wall of the resin base member, and a horizontal shelf that extends horizontally inward is formed at the lower end of the inner wall. Resin cap member for containers. The inner wall of the resin metal member extends linearly downward, the inner surface of the inner wall is flat, and a tapered portion is formed on the outer surface of the lower end of the inner wall. A resin cap member for the storage container according to claim 1.

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