JP5113440B2 - Container with lid - Google Patents

Description

  The present invention relates to a container main body whose diameter gradually decreases radially inward from the opening side toward the bottom, and a container with a lid that closes the opening of the container main body.

Conventionally, as a means for opening a lid member without using an opening device such as a bottle opener for a container or the like, a gripping portion such as a pull ring that protrudes from an edge of a part of a skirt wall that is continuous with the top wall of the lid member There is known a container with a lid formed with a score which is a weakening line extending from the base of the gripping part to the skirt wall and further to the top wall.
In the opening of the container body of such a container with a lid, a bead-like protrusion protruding outward in the radial direction of the container body is formed around the opening in order to lock the lid member when the container is closed. (See FIG. 6 of Patent Document 1 below). However, when drinking a beverage using the container body, the protruding portion hits the lips of the user or the like, so it is difficult to drink sensuously.

  Patent Document 1 discloses a container main body without such a protruding portion, that is, a container main body without a protruding portion on the outer peripheral surface. In the container with a lid disclosed in Patent Document 1, an annular elastic member is provided on the inner peripheral surface of a metal lid member. The annular elastic member has a concave groove that fits into the upper edge (opening) of the container body. In the central part of the lid member, a through hole is formed which communicates the inside and outside of the lidded container. Further, a sealing piece made of an odorless plastic film that closes the through hole is disposed on the outer surface side of the lid member.

In such a container with a lid, after the contents are put into the container main body, the inside of the container is evacuated to bring the lid member into close contact with the opening of the container main body. And the protective seal piece which covers the whole surface of a sealing piece and peels integrally with a sealing piece at the time of peeling is stuck on the outer surface of the sealing piece of a cover member so that peeling is possible.
When opening the lid member from the container body, the sealing piece is peeled off by peeling off the protective seal piece, thereby opening the through-hole to the atmosphere, so the degree of vacuum in the container is lost and the container body Is opened.
Utility Model Registration No. 3116673

  However, since the through-hole is formed in the lid member in this way, the contents in the container come into contact with the sealing piece and the through-hole surface of the lid member, and in order to maintain the quality, the sealing piece A special material is required for the material of the material, or some kind of treatment is required to maintain the quality of the through hole of the lid member. Furthermore, since the closure force of the lid member to the container body is only the suction force due to the reduced pressure, it is necessary to cover the container body with a heat shrink film (shrink film) covering the upper part of the container body and the lid member in order to improve the reliability of the sealing performance. There is also sex.

  The present invention has been made in view of such circumstances, and by reducing the pressure inside the container, the reliability of the closing force of the lid member can be ensured when the container body is closed, and the contents The object of the present invention is to provide a lidded container that does not require any special technique and can reduce the thickness of the container body.

In order to achieve the above object, the lidded container of the present invention closes at least the container body whose outer peripheral surface at the opening side gradually decreases in diameter radially inward from the opening side toward the bottom, and the container body. A lidded container comprising a lid member, the lid member comprising a metal lid body and a liner disposed on the inner surface of the lid body, the lid body comprising a top wall and a top wall A skirt wall extending downward from the periphery, a gripping portion protruding from a part of the lower end of the skirt wall, and a pair of scores extending upward from the both ends of the base end portion of the gripping portion. A curled portion that curves outward is formed at the lower end of the skirt wall excluding the gripping portion on the lid body, and a liner that contacts the upper edge of the opening is formed at the peripheral edge of the top wall of the lid body. The score is formed extending to the position of the liner The curled portion during mounting of the container body of the lid member, the maximum outside by pressing the opening outer circumferential surface whose diameter radially inward to gradually decrease the inner diameter of the lower end of the skirt wall above the opening peripheral surface The lid body was formed in a smaller diameter than the diameter part, the lid body was held in the opening of the container body, and the inside of the container body was held in a reduced pressure state.
The top wall of the lidded container includes the peripheral portion, an inverted truncated cone-shaped portion extending downwardly inward in the radial direction from the peripheral portion, and a circular central settling inside the inverted truncated cone-shaped portion. The liner is arranged on the inner peripheral surface of the peripheral edge.

The lidded container of the present invention is a lidded container comprising at least a container body whose outer diameter on the opening side gradually decreases radially inward from the opening side toward the bottom, and a lid member that closes the container body. The lid member includes a metal lid body and a liner disposed on the inner surface of the lid body, and the lid body includes a top wall and a skirt wall extending downward from the periphery of the top wall. A grip part protruding from a part of the lower end of the skirt wall and a pair of scores extending upward from the both ends of the base end part of the grip part to the skirt wall. A curled portion that curves outward is formed at the lower end of the removed skirt wall, and a liner that abuts the upper edge of the opening is provided at the peripheral edge of the top wall of the lid body. Extending to a position, the lid member to the container body At the time of wearing, the curled portion is pressed toward the outer peripheral surface side of the opening to form an inner diameter of the lower end of the skirt wall smaller than a maximum outer diameter portion of the outer peripheral surface of the opening, and the lid main body is used as an opening of the container main body. While holding the inside of the container body in a reduced pressure state, direct pressure reduction in the lidded container and direct (contact with the outer peripheral surface) or indirect (non-contact with the outer peripheral surface) by reducing the diameter of the curled portion It is a double closure structure with a typical closure, and a reliable closure state of the container body can be made possible.
The top wall of the lidded container includes the peripheral portion, an inverted truncated cone-shaped portion extending downwardly inward in the radial direction from the peripheral portion, and a circular central settling inside the inverted truncated cone-shaped portion. Since the liner is disposed on the inner peripheral surface of the peripheral portion, when the lid member is put on the container body and the inside is decompressed, the central protrusion of the circular central settling portion is It dents to the bottom part side, the internal pressure reduction state can be confirmed, and the adhesion between the lid member and the container body can be confirmed. Since the inverted frustoconical shape that extends downward and adjacent to the periphery is formed, the inside of the periphery becomes a concave shape, the arrangement of the liner can be stabilized, and a sufficient amount can be secured. , Sealing performance can be improved.

Hereinafter, a container with a lid according to an embodiment of the present invention will be described with reference to the drawings.
1 is a front view showing an example of a lidded container according to the present invention, FIG. 2 is a side view thereof, and FIG. 3 is a cross-sectional view in the direction of FIG. 2X-X.
A container 1 with a lid according to the present invention includes a container body 2 and a metal lid member 3. The container body 2 is a glass container in this embodiment, but may be formed of a synthetic resin. The container body 2 is characterized in that at least the outer peripheral surface 6 on the opening 5 side of the container body 2 gradually decreases in diameter radially inward from the opening 5 side toward the bottom 7.

  As shown in FIG. 3, the gradual decrease in diameter includes those in which the diameter gradually decreases from the opening 5 to the bottom 7 of the outer peripheral surface of the container body 2, but at least the outer periphery on the opening 5 side. It is necessary that the portion of the surface 6 covered with the lid member 3 is gradually reduced. Therefore, the portion other than the opening 5 side may be uneven or may be linear, and the shape of the lower side of the container body may be a cylindrical shape, a spherical shape, a rectangular shape, or the like. Furthermore, if the diameter of the outer peripheral surface 6 on the opening 5 side is gradually reduced, the ridgeline of the cross-sectional shape of the outer peripheral surface 6 may be a straight line shape or a streamline shape depicting an arc. Also good.

Next, the lid member 3 that closes the container body 2 in the opening 5 having no bead-shaped protrusion will be described.
4A to 4C show the lid member 3 before being attached to the container main body 2, and the lid member 3 includes a lid main body 8 and a liner 9. The lid body 8 is most preferably an aluminum-based alloy thin plate, but can also be formed by drawing a suitable metal thin plate such as a chromic acid-treated steel thin plate or a tin thin plate with a press or the like. The lid body 8 includes a disk-shaped top wall 11 and a cylindrical skirt wall 12 that substantially hangs down from the peripheral edge of the top wall 11. The inner diameter of the skirt wall 12 has substantially the same size as the outer diameter of the maximum outer diameter portion P (see FIG. 5) of the opening 5 of the container body 2.

The lower end of the skirt wall 12 is connected to a part of the lower edge portion of the skirt wall 12, and a protrusion 14 is formed so as to protrude further downward from the end edge. The pull ring 15 is connected. The pull ring 15 extends downward from the protrusion 14 so as to be substantially along the outer peripheral surface 6 of the container body 2 (see FIG. 5).
A relatively small notch 16 is formed at the base of the protrusion 14 to the skirt wall 12. The notch 16 is the deepest part at the upper end of the protrusion 14, and a pair of scores 18 that extend across the skirt wall 12 in the height direction and extend to the top wall 11 are formed at the deepest part of the notch 16. ing. The score 18 is generally formed of a thin-walled portion, and the position where the score 18 is formed is formed at least up to a position exceeding the edge of the liner 9.
A curl portion 19 that is curved in a substantially circular shape toward the outside is formed at the lower end of the skirt wall 12 except for the portion where the protrusion 14 of the skirt wall 12 is provided.

With reference to FIGS. 3 and 5, the top wall 11 of the lid body 8 is, in order from the outside, an annular peripheral edge 21 extending inward, and downward from the annular peripheral edge 21 toward the radially inner side of the top wall 11. And an inverted frustoconical portion 22 extending in a slanted manner and a circular central settling portion 23 inside the inverted frustoconical portion 22.
The liner 9 described above is attached to the inner peripheral surface of the annular peripheral edge 21. The material of the liner 9 is a synthetic resin such as polyvinyl chloride or polyurethane. The liner 9 is disposed so as to fill the inner peripheral surface of the annular peripheral edge 21 (see A in FIG. 4). The liner 9 is bonded to the inner peripheral surface of the annular peripheral edge portion 21 by a metal paint applied on the inner peripheral surface. The central projecting portion 23b of the circular central sedimentation portion 23 projects in a shape that slightly expands upward from the peripheral flat portion 23a of the circular central sedimentation portion 23.
As shown in FIG. 5, the upper edge part of the container body forms a horizontal part 5a on the inner side, and the outer peripheral side forms a curved surface 5b that expands radially outward from the horizontal part 5a.

In the lidded container 1 having such a configuration, the container body 2 is closed as follows.
First, contents such as liquor are placed in the container body 2. The temperature of the contents is 50 to 60 ° C., and the filling amount of the contents needs to leave a space where pressure can be reduced without entering the opening 5. Next, the lid member 3 is attached to the opening 5 of the container body 2. At this time, the liner 9 disposed on the inner peripheral surface of the annular peripheral edge portion 21 of the lid member 3 is placed on the horizontal portion 5 a in the opening 5 of the container body 2. At this time, the top surface wall 11 of the lid member 3 is pressed by a closing jig (not shown) and the curled portion 19 is pressed radially inward of the lid body 8. Since the liner 9 has elasticity, it is in close contact with the horizontal portion 5a and the curved surface 5b, which are the upper edge portions of the container body 2 shown in FIG. 5, and further, from the horizontal portion 5a to the inner peripheral surface side of the opening 5.
The curled portion 19 of the lid member 3 is reduced in diameter by a pressing jig, and the lower end of the skirt wall 12 of the lid member 3 is smaller than the diameter of the maximum outer diameter portion P of the outer peripheral surface of the opening 5 of the container body 2. The curled portion 19 as a portion is formed so as to have a small inner diameter. For drawing, the caulking portion 19 that is the drawing portion may be slightly caulked so that the inner peripheral surface of the curled portion 19 contacts the outer peripheral surface of the container body 2 without pressing. However, the curled portion 19 may press the outer peripheral surface, or a gap may be formed.

  On the other hand, since the temperature of the contents is 50 to 60 ° C., the inside of the lidded container 1 is decompressed by natural cooling higher than normal temperature. By this decompression, the lid member 3 is sucked into the container body 2 and the portions where the liner 9 is in contact with the container body 2 such as the horizontal portion 5a and the curved surface 5b of the container body 2 are brought into close contact with each other. 1 can be sealed. Due to the decompression of the internal space, the top wall 11 of the lid member 3 is sucked, and the central projecting portion 23b formed in the circular central sedimentation portion 23 is recessed toward the bottom 7 side of the container body 2 (in FIG. 5). (See the two-dot chain line). When the central projecting portion 23b is depressed, internal pressure reduction can be confirmed, and furthermore, the adhesion between the lid member 3 and the container body 2 can be confirmed.

In this way, the lid member 3 can be attached to the container body 2. Therefore, even if the bead is not formed in the opening 5 of the container main body 2, the lid member 3 can be closed on the container main body 2 with conventional existing equipment.
As described above, the inside of the lidded container 1 is decompressed and the liner 9 maintains hermeticity, but in this embodiment, the maximum outer diameter portion of the outer peripheral surface of the opening 5 of the container body 2 is further increased. It is formed so that the inner diameter of the lower end side of the skirt wall 12 of the lid member 3 is smaller than the diameter of P. Therefore, even if a force of a level due to normal handling is applied, the maximum outer diameter portion P cannot be overcome and the lid member 3 is not detached from the container body 2.

As described above, the closure of the lid member 3 to the container main body 1 has a double structure in which the lid member 3 is closed by decompression and a light restriction at the lower end of the skirt wall 12, so that a reliable closure state is possible. Since the entire periphery of the skirt wall 12 integrally covers the entire outer periphery of the opening 5, even if an external force is applied, the skirt wall 12 does not open outward if the external force is within a normal range. The lid member 3 is not detached from the opening 5.
About such a container 1 with a lid | cover, you may make it cover a shrink film over the upper part of the cover member 3 and the container main body 2, or the whole in order to improve tamper evidence property.

  With such a configuration, when the user opens the lid member 3 from the container body 2, the pull ring 15 is inserted into a finger, and the pull ring 15 is pulled upward from the skirt wall 12 to be cut. At this time, first, the pull ring 15 is pulled outward in the radial direction of the lid member 3, the score 18 of the skirt wall 12 is torn, and then the pull ring 15 is pulled upward to form the annular peripheral edge 21 on the top wall 11 side. Tear score 18 further. As a result, the liner 9 portion bonded to the back surface of the protrusion 14 of the pull ring 15 is turned upward, and the sealing property of the liner 9 at this portion is lost, and the air enters the container body 2. Therefore, it is preferable to form the position where the score 18 is formed up to the position where the liner 9 is turned up.

When the air enters the container body 2, the suction force to the top wall 11 of the lid member 3 due to the reduced pressure is lost. On the other hand, when the pull ring 15 is pulled and the score 18 is torn, the skirt wall 12 does not have an annular shape, and particularly, at the lower end side of the skirt wall 12, the portions separated from the both ends of the pull ring 15 greatly expand outward. be able to. Therefore, the curled portion 19 can get over the maximum outer diameter portion P of the opening 5, the lid member 3 is released from the opening 5 of the container main body 2, and the container main body 2 can be easily opened.
Thus, in this embodiment, even if it is the container main body 2 without the bead-shaped protrusion in the opening part 5 of the container main body 1, the cover member 3 can be hold | maintained in the opening part 5. FIG. Therefore, it is possible to drink a beverage by applying the user's lips to the smooth opening portion 5 having no protrusions, and the user is sensually easy to drink and has a good mouthfeel. Since the quality of the contents is not changed from that of a normal lid member, the existing technology for maintaining the quality of the lid member can be applied as it is.

  In the conventional container main body, since the caulking is formed so as to be wound around the bead-shaped protrusion formed in the opening, it is necessary to increase the material of the container main body. Since the squeezed portion is not in contact with the outer peripheral surface of the container main body 2 or no pressure is applied even if the squeezed portion is contacted, no load is applied to the container main body 2 even if the squeezed portion is formed. Therefore, when the container main body 2 is made of glass as in this embodiment, there is an effect that the thickness of the container main body 2 can be reduced. The same applies to the container body made of synthetic resin. When the container body is thin, it can be made into a shape with excellent design like a commercially available cup used at home, so it can be reused as it is, and the recycling effort is omitted. You can also.

  In the present embodiment, a caulking that is light enough that the inner diameter of the curled portion 19 at the lower end of the skirt wall 12 is smaller than the diameter of the maximum outer diameter P in the opening 5 of the container body 2 is formed. As for the material of the lid body 8, a relatively soft material in which the circular central settling part 23 is depressed by reduced pressure was used. For the score 18, only a pair is formed at both ends of the portion where the pull ring 15 is formed. However, if it is difficult to remove the lid member 3 by increasing the aperture amount of the curled portion 19 or by forming the lid body 8 from a relatively hard material, the number of the score 18 is set. It may be increased further. For example, a score may be further formed at a position 90 degrees away from the center line of the pull ring 15 in the left-right circumferential direction.

The present invention has been described in detail based on the embodiments with reference to the accompanying drawings. However, the present invention is not limited to the above-described embodiments, and other modifications can be made without departing from the scope of the present invention. Or it can be modified.
For example, in the above embodiment, the circular central sedimentation portion 23 is formed in the central portion of the top wall 3 of the lid member 3, but the circular central sedimentation portion 23 is omitted and the peripheral flat portion 23 a of the inverted frustoconical shape portion 22. And may be flush with each other.

It is a front view after closing the lid member of the container with a lid in an embodiment of the invention. It is a side view after obstruct | occluding the lid member of the container with a lid | cover of FIG. It is sectional drawing in the XX direction of the container with a lid | cover of FIG. 2 (before caulking of a cover member). FIG. 1 is a lid member of the lidded container of FIG. 1, wherein A is a partially broken sectional view of the lid member as viewed from the front, B is a front view of the lid member, and C is a side view (caulking of the lid members of A to C). Before). It is an expanded sectional view in the opening part of the container with a lid | cover of FIG. 3 (before caulking of a cover member). It is a side view before caulking of the lid member of the lidded container of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Container with a lid 2 Container main body 3 Lid member 5 Opening part 6 Outer peripheral surface 7 Bottom part 8 Lid main body 9 Liner 11 Top wall 12 Skirt wall 15 Pull ring 18 Score 19 Curl part 21 Annular peripheral part

Claims (2)

A container with a lid comprising at least a container body whose diameter gradually decreases radially inward from the opening side toward the bottom from the opening side, and a lid member that closes the container body;
The lid member comprises a metal lid body and a liner disposed on the inner surface of the lid body;
The lid body includes a top wall, a skirt wall extending downward from the periphery of the top wall, a grip part protruding from a part of the lower end of the skirt wall, and a skirt wall from both ends of the base end part of the grip part. Forming a pair of scores extending upward,
A curl portion that curves outward is formed at the lower end of the skirt wall excluding the grip portion in the lid body,
A liner that contacts the upper edge of the opening is provided at the peripheral edge of the top wall of the lid body, and the score extends to the position of the liner,
When the lid member is attached to the container body, the curl portion is pressed toward the outer peripheral surface of the opening whose diameter gradually decreases inward in the radial direction so that the inner diameter of the lower end of the skirt wall is set to the maximum outside of the outer peripheral surface of the opening. A container with a lid, which is smaller in diameter than the diameter part, holds the lid body in the opening of the container body, and holds the inside of the container body in a reduced pressure state.   The top wall comprises the peripheral edge, an inverted frustoconical shape extending downwardly inward in the radial direction from the peripheral edge, and a circular central settling portion inside the inverse frustoconical shape, 2. The lidded container according to claim 1, wherein the liner is disposed on the inner peripheral surface of the peripheral portion.

Images