JPH1143168A - Drink container with lid - Google Patents

Abstract

PROBLEM TO BE SOLVED: To secure high sealability and hygiene and also enable easy opening/ closing by forming a cylindrical-face-like lid sealing face formed to be fitted into an inner diameter part of a container mouth at the time of closing a lid and a cylindrical-face-like container sealing face to be in tight contact therewith. SOLUTION: A cylindrical sealing part 11 extending in an axial direction is integrally formed on a rear of a disk-like bottom 6a of a lid member 6. A lid sealing face 11a being an outer peripheral face of the sealing part 11 is formed in an outer diameter size which can be tightly fitted with a container sealing face 2a which is a cylindrical inner peripheral face of a container mouth 2. A fixing member 4 is brought into contact with the outside of the container mouth 2 and strongly pushed down, thereby fitting the lid member 6 into a container 1. This push-down allows an engaging protrusion 15 formed on an inner peripheral face of the fixing member 4 and an engaging recess 16 formed on an outer peripheral face of the mouth 2 to be fitted with each other. Since the lid sealing part 11a and the container sealing face 2a are airtightly attached at this time, leakage and deterioration due to contact with an atmosphere of contents can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a beverage container having a lid that can be opened and closed.

[0002]

2. Description of the Related Art A lid (closing device) for sealing a beverage container,
In particular, as a lid that is used repeatedly, a lid that is screwed into the mouth of a bottle is generally used.

[0003]

However, a screw-in type lid is difficult to open for an infant or the like, and is not suitable for a container for a beverage for an infant, for example. Further, depending on the place where the removed lid is placed, the lid may be contaminated, and when the lid is closed again, the contamination may spread to the beverage. Also, in order to make it easy to check the freshness, it is preferable that once opened, it is desirable to leave a trace of the opened portion so that the presence or absence of opening can be easily visually determined. Further, from the viewpoint of maintaining freshness, a material having a high sealing property is desired. However, if the sealing property is enhanced, it often takes time to open and close the lid.

[0004] Therefore, an object of the present invention is to provide a beverage container with a lid, which can easily determine the presence or absence of opening, has high hermeticity and hygiene, and can be easily opened and closed by anyone.

[0005]

In order to achieve the above object,
The beverage container with a lid according to the present invention is a beverage container whose mouth is sealed with a closure made of an elastic material, wherein the closure is fitted and fixed to the outer peripheral portion of the container mouth. And a lid member attached to the fixing member via a hinge to open and close the container mouth, and a bottom portion of the lid member, which is fitted to an inner diameter portion of the container mouth when the lid is closed. The fixed member and the cover member are integrally held in a fixed circumferential area including the provided cylindrical sealing surface and the position facing the hinge, and are separated from both members by tearing in the circumferential direction. And a plurality of bridges that hold the fixing member and the lid member integrally in an area between the tear piece and the hinge, and are separated by the operation when the lid member is first opened, and A cylinder which is in close contact with the lid sealing surface when the lid member is closed on the inner peripheral surface of the container opening; It is provided with a Jo container sealing surface.

In this case, of the lid sealing surface, the tip end near the hinge is extended more axially than the other part, and the extended end is positioned at the upper edge of the container opening when the lid member is open. It is good to touch the part.

[0007] The extending end of the lid sealing surface is desirably formed in a convex spherical shape.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

As shown in FIG. 1, a beverage container with a lid according to the present invention is constructed by fitting a lid (3) into a mouth (2) of a rigid container (1) such as a glass bottle. You.

The closure (3) is integrally formed of an elastic material (eg, resin), and has a cylindrical fixing member (4) fitted and fixed to the container opening (2), and a fixing member. A bottomed cylindrical lid member (6), which is swingably attached to the member (4) via a hinge (5), is a main component.

The hinge (5) is formed at one place in the circumferential direction with a suitable width in the circumferential direction. Fixing member (4)
In the boundary between the cover member (6) and the hinge (5), a region in the circumferential direction including the position facing the hinge (5), specifically, a substantially semicircular region centered on the position facing the hinge (5). A tear piece (7) for integrally holding the fixing member (4) and the lid member (6) before opening is arranged. The space between the tearing piece (7) and the lid member (6) and the fixing member (4) located above and below the tearing piece (7)
It is continuous via the weakened line (9) formed thinly.

In two circumferential regions between the tearing piece (7) and the hinge (5), a bridge (10) for integrally connecting and holding the fixing member (4) and the lid member (6) is provided. A plurality of bridges are provided in each region (see FIG. 1; however, only the bridge in one region is shown in the drawing). The bridges (10) have an elongated columnar shape that is easily broken by upward pulling force, and are provided at equal intervals in the circumferential direction.

As shown in FIG. 2, of the cover member (6),
An axially extending cylindrical seal portion (11) is integrally formed on the back surface of the disc-shaped bottom portion (6a). The outer peripheral surface (11a: hereinafter, referred to as a lid seal surface) of the seal portion (11)
The outer diameter is formed so as to be able to fit tightly into a cylindrical inner peripheral surface (2a: hereinafter referred to as a container sealing surface) of the container opening (2). A portion of the seal portion (11) in the vicinity of the hinge (5) is extended in the axial direction to be longer than other portions, and in the open state shown in FIG. (Extended end) (11a1) is the upper edge (2) of the container mouth (2).
Make contact with b). The tip of this extension (11a
1) and the other end portions of the lid sealing surface (11a) are continuous via a smooth curve, and these end portions are formed in a convex spherical shape over the entire circumference. An auxiliary sealing portion (12) is provided at the bottom of the lid member (6) and at a portion (outer diameter side of the sealing portion 11) facing the upper edge portion (2b) of the container opening (2). Have been.

In the drawing, (13) is a tab provided on the lid member (6), and (14) is a handle provided at one end of the tearing piece (7).

The above-mentioned closure (3) is integrally formed by injection molding of a resin material or the like. Then, a fixing member (4) is applied to the outside of the mouth (2) of the container (1) filled with the beverage (water, juice, milk, etc.), and the fixing member (4) is strongly pushed down to put the fixing member (4) into the mouth (2). ), The lid member (6) is fitted to the container (1). With the pressing down, the fixing member (4) is moved to the mouth (2) as shown in FIG.
The outer diameter is increased by an annular protruding portion (14) formed on the outer peripheral surface of the fixing member (4), and thereafter, an engaging convex portion (15) provided on the inner peripheral surface of the fixing member (4) is engaged with the opening (2). ) Is elastically returned to the inner diameter side when it is received in the engagement concave portion (16) provided on the outer peripheral surface, and is fitted and fixed to the container mouth (2). At this time, since the lid sealing surface (11a) and the container sealing surface (2a) are tightly adhered to each other to exert a sealing function, it is possible to surely prevent deterioration of quality due to leakage of contents (beverage) and contact with outside air. be able to. In addition, since the auxiliary seal portion (12) comes into close contact with the upper edge portion (2b) of the container mouth portion (2) and exhibits the same sealing function,
The sealing effect can be further enhanced.

In this state, when the user grasps the handle (14) of the tear piece (7) and pulls it, the tear piece (7) is torn by the weakening line (9), and the fixing member (4) and the lid member are broken. Separate from (6). Further, when the lid member (6) is lifted by holding the tab (13), the bridge (10) is broken by the tensile force at that time, and the lid member (6) swings around the hinge (5). The cover is opened as shown in FIG. When the lid is opened for the first time, a breaking sound of the bridge (10) is generated, so that the user can easily recognize that the container has not been opened. Of course, whether or not the sheet has been opened can also be visually determined based on the presence or absence of the tearing piece (7). After the lid is opened, the lid (6) tends to close due to the elasticity of the hinge (5). However, as described above, the tip of the seal portion (11) comes into contact with the container opening (2) and the lid (6) closes. The lid member (6) is kept in the open state in order to restrict the further closing operation of (3). Since the lid member (6) is attached to the fixing member (4) via the hinge (5), once the fixing member (4) is once fitted to the container mouth (2), the lid member (6) is thereafter formed. The contamination of the lid member (6) can be prevented without the 6) being separated from the container (1).

By the way, according to the above configuration, the sealing portion (1
Since 1) protrudes from the bottom (6a) of the lid member (6), the tip of the seal portion (11), particularly the tip on the hinge (5) side, is closed when closing the lid. It is also expected that it will not penetrate well into the inner diameter side, will fall into the outer diameter side, and can no longer be closed. On the other hand, in the present invention, as described above, the tip (11a1) of the seal portion (11) has a length in contact with the upper edge of the container mouth (2).
Even when the lid member (6) is closed, the tip portion (11a1) slides on the upper edge portion (2b) and is guided toward the inner diameter side, so that the seal portion (11) is securely sealed on the container sealing surface (2a). Can be fitted on the inner diameter side of the. On the other hand, if the entire circumference of the seal portion (11) is equal in length to the portion in the vicinity of the hinge (5), especially when the seal portion (11b) at the position facing the hinge (5) is closed, the container opening (2) is closed. ) May contact the upper edge (2b) and interfere with further closing.
In the present invention, only the portion near the hinge (5) of the seal portion (11) is lengthened and the other portion (for example, 11b) is shortened, so that such an adverse effect does not occur.

Further, the tip portion (11a) of the lid sealing surface (11a)
Since 1) is formed in a convex spherical shape, the container mouth (2)
The tip portion (11a1) of the seal portion (11) in contact with the can move smoothly to the inner diameter side with the closing operation of the lid member (6), and a more reliable opening and closing operation can be secured.

[0019]

As described above, according to the present invention, since the lid sealing surface of the lid member and the container sealing surface of the container are in close contact with each other, a high sealing effect can be secured with a simple structure. . In addition, whether or not the unopened portion can be confirmed audibly and visually based on the presence or absence of the breaking sound of the bridge or the presence of the tearing piece, which is effective in preventing the contents from being tampered with. Since the lid member is attached to the container via the hinge, it is possible to prevent the lid member from being contaminated by placing the lid member at a contaminated location.

In the lid sealing surface, the tip end near the hinge is extended more axially than the other part, and the extended end contacts the upper edge of the container opening when the lid member is in the open state. By doing so, even when the lid member is closed, the extending end portion slides on the upper edge portion and is guided to the inner diameter side, so that the seal portion can be securely fitted to the inner diameter side of the container sealing surface. Yes, anyone can easily obtain a high sealing effect.

If the extending end of the lid sealing surface is formed in a convex spherical shape, the extending end of the lid sealing surface in contact with the container mouth can be more smoothly moved to the inner diameter side.

[Brief description of the drawings]

FIG. 1 is a side view of a container and a lid before the lid is fitted.

FIG. 2 is a cross-sectional view of the lidded beverage container after the lid is fitted.

FIG. 3 is a side view showing a cover opened state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Container 2 Mouth 2a Container sealing surface 2b Upper edge 3 Lid 4 Fixing member 5 Hinge 6 Lid 6a Bottom 7 Tearing piece 10 Bridge 11 Seal 11a Lid sealing surface 11a1 Extension end

Claims (3)

[Claims] 1. A beverage container whose mouth is sealed with a lid made of an elastic material, wherein the lid is fitted and fixed to an outer peripheral portion of the container mouth, and an annular fixing member. A cover member attached to the member via a hinge to open and close the container mouth, and a cylindrical surface provided at the bottom of the cover member so as to fit into the inner diameter of the container mouth when the cover is closed. The lid sealing surface and the fixed member and the lid member are integrally held in a fixed area in the circumferential direction including the position facing the hinge,
A tear piece that is separated from both members by tearing in the circumferential direction, and the fixing member and the lid member are integrally held in an area between the tear piece and the hinge, and this operation is performed when the lid member is first opened. A beverage container with a lid, comprising: a plurality of bridges to be divided; and a cylindrical container sealing surface that is in close contact with the lid sealing surface when the lid member is closed on the inner peripheral surface of the container opening. . 2. A front end portion of the lid seal surface near the hinge is extended more axially than another portion, and the extended end portion is connected to an upper edge of the container opening when the lid member is in the open state. The beverage container with a lid according to claim 1, wherein the beverage container is in contact with the container. 3. The beverage container with a lid according to claim 2, wherein the extending end of the lid sealing surface is formed in a convex spherical shape.