JPH086765Y2 - Combined safety lid - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The lid according to the present invention relates to a safety lid that can clearly indicate that the container has been initially opened, and more specifically, a synthetic resin cap and a metal. The present invention relates to a composite lid body formed with a cap.

[Prior Art] Today, in order to confirm that there is no risk of foreign matter being mixed in the container, various safety lids equipped with means for clearly indicating that the container is unopened are used. There is.

In the case of a lid made of synthetic resin, this safety lid has a weakened portion on the lower end of a cylindrical skirt portion that hangs down from the peripheral edge of the flat plate-shaped top portion and covers the outer periphery of the container mouth. And a pill fproof band portion is provided below the skirt portion, and a plurality of protrusions for engaging the container collar portion and the like are provided on the inner side of the pill fproof band portion to remove the lid body. , There are those that leave a trace that the container has been opened by breaking the weakened part.Also, in the case of a metal lid that covers a decompression container such as vacuum packaging, it is formed by curving upward. It is assumed that the center of the lid top plate portion is bent downward due to the depressurized state inside the container, and when the depressurized state inside the container is released at the time of initial opening, the central part is bent upward due to the elasticity of the metal plate. When returning to this shape and restoring this shape, Which was set to form the confirmation curved portion was set to emit a sound is there.

Further, only the top plate of the lid is made of a metal plate, and the peripheral edge of the top plate and the skirt are made of synthetic resin, so that the pilfap proof band is formed below the skirt and the top of the metal is made. There is a composite lid body as a safety lid body having a double initial opening display function that enables confirmation by a metallic sound at the time of initial opening by the plate portion (for example, Japanese Patent Laid-Open No. 64-4).
5.264).

[Problems to be solved by the invention] A composite safety lid body having a pilfap proof band portion at the lower end of a skirt portion and a confirmation curved portion on a metal top plate portion has an excellent function of clearly indicating an initial opening. The confirmation bending part also has a function to ensure that the decompressed state inside the container is maintained and the quality of the filling has not changed, but since the skirt part is made of synthetic resin, heating such as retort treatment is performed. When the treatment is performed, the lid is loosened and the depressurized state in the container is no longer maintained, and the confirmation curved portion is restored upward even though it is an unopened container. Not only is it impossible to clearly indicate, but there is the drawback that it makes doubts about the quality of the contents.

[Means for Solving the Problems] The present invention provides a composite lid body including a metal cap and a synthetic resin cap, and the metal cap has a center curved upward to form a confirmation curved portion. A plurality of hanging parts are provided below the peripheral edge of the part, and a projection is formed inward from the lower end of the hanging part.The synthetic resin cap has a through hole formed in the center of the top plate part. A cylindrical skirt portion is formed so as to hang down from the peripheral edge of the top plate portion, an inward bulge portion for locking the metal cap is formed inside the skirt portion, and the lower end of the skirt portion is weakened. The pilfap proof band part is formed through the part, and both caps are combined so that the metal cap is fixed inside the synthetic resin cap.

[Operation] Since the present invention is a composite lid that combines a metal cap and a synthetic resin cap, a curved portion for confirmation is provided on the metal cap, and a pilfap proof band portion is provided on the synthetic resin cap. By doing so, it is possible to perform double initial opening display.

Further, by forming an inward protruding portion at the lower end of the hanging portion provided on the periphery of the top plate portion of the metal cap, a lid body for engaging the protruding portion with the screw portion of the container mouth portion is provided. Because it is a composite lid that seals the container mouth with
The heat treatment can also eliminate the risk of loosening the tight sealing of the container by the cap.

[Embodiment] As shown in FIG. 1, the lid according to the present invention is a composite lid 10 having a double structure in which a metal cap 11 for sealing a container mouth is provided inside a synthetic resin cap 31. Is.

As shown in FIG. 1 and FIG. 2, the metal cap 11 is formed into a disc shape and is curved so that the central portion of the top plate portion 13 that closes the container mouth portion is projected upward to bend it for confirmation. A part 15 is formed, and a vertical short cylindrical part 17 is formed on the periphery of the top plate part 13.
Is provided, and a plurality of hanging parts 21 are arranged at equal intervals so as to extend downward from the lower end of the short cylindrical part 17, and inward projections 23 are provided at the lower ends of the hanging parts 21. And each projection 23 is a screw part that engages with the screw part 55 of the container opening 51.

The number of hanging parts 21 is the screw part formed on the container mouth part 51.
According to the number of threads of 55, the screw portion formed by the plurality of protrusions 23 is a female screw matched with the male screw formed by the screw portion 55 provided on the outer periphery of the container mouth 51. At least the top plate portion is provided inside the short cylindrical portion 17.
A liner 25 is provided on the lower surface of the peripheral edge of 13 so that the container mouth 51 can be sealed.

The confirmation curved portion 15 provided on the top plate portion 13 is formed in a shape protruding upward as shown in FIG. 2, but in the initial sealed state, it is moved downward due to pressure reduction in the container as shown in FIG. It is formed so that it can be transformed into a curved shape.

Further, as shown in FIGS. 1 and 3, the synthetic resin cap 31 is provided with a skirt portion 37 having an inner diameter corresponding to the outer diameter of the metal cap 11, and is horizontally disposed from the upper end of the skirt portion 37. A flat plate-shaped top plate portion 33 is provided, and the top plate portion 33 is provided.
A through hole 35 is provided in the center of 33 so that the confirmation curved portion 15 can be freely curved upward and downward, and whether or not the curved portion 15 is curved so as to project downward. Make it visible.

Further, an inward swelling portion 38 is formed inside the skirt portion 37, and the inward swelling portion 38 engages with the lower end of the hanging portion 21 of the metal cap 11 and inside the synthetic resin cap 31. The metal cap 11 can be inserted and fixed to the skirt portion 37, and a weakening portion 41 by a bridge or a discontinuous slit is provided at the lower end of the skirt portion 37 to form a pilfap proof band portion 43 below the skirt portion 37. The pilfer proof band portion 43 has a ratchet portion 45 which engages with the outer periphery of the container mouth portion 51 inside, and when the lid body 10 is rotated so as to be unsealed from the container mouth portion 51, the pilfer proof band portion 43 is rotated. The proof band portion 43 has a structure in which rotation is blocked by the ratchet portion 45 and the weakened portion 41 is broken.

An appropriate recess 19 is provided in the short cylindrical portion 17 of the metal cap 11, and a convex portion 39 that engages with the recess 19 is provided above and inside the skirt portion 37 of the synthetic resin cap 31. The metal cap 11 is surely prevented from rotating with respect to the synthetic resin cap 31.

As described above, the lid 10 according to this embodiment is a metal cap.
Composite lid 10 with 11 fixed inside synthetic resin cap 31
As described above, the pill-proof band portion 43 is formed on the synthetic resin cap 31, and the metal cap 11 is formed.
Since the confirmation curved portion 15 is formed in the center of the top plate portion 13 of
In addition to displaying that the pill-proof band portion 43 is not opened due to the presence of the pill-proof band portion 43, when the lid 10 is covered with the decompression container, the confirmation bending portion 15 is sucked so as to bend downward, The curved state guarantees the quality of the filling material, and at the time of initial opening, the depressurization inside the container is released and the confirmation bending portion 15 returns to the original shape curved upward, and a metallic sound is emitted to make the initial opening. Safety lid that can clearly indicate
In the composite safety lid body 10, since the female screw is formed by the protrusion 23 provided at the lower end of the hanging portion 21 of the metal cap 11, the metal cap 11 causes the container mouth portion 51.
There is no fear that the screw with the container mouth 51 will loosen even when heat-treating a container that is screwed and fixed to the container filled with contents, and surely maintains the depressurized state in the container after heat treatment, A composite safety lid body 10 that surely causes the function of the bending portion 15 for use, and that double-safety indication is performed together with the unopened indication by the pill-proof band portion 43 to surely and clearly show safety. Is.

Further, in the present embodiment, when the screw portion is provided on the metal cap 11, the protrusion portion 23 and the top plate portion which become the female screw by the hanging portion 21 are provided.
Since the hanging portion 21 and the protruding portion 23 are discontinuous in the circumferential direction by providing a distance to the blank 13, the blank 28 for the metal cap 11 is for forming the hanging portion 21 and the protruding portion 23. Projection 29
Can be discontinuously formed around the circular main body portion, and when punching the blank 28 for the metal cap 11 from the metal plate, the blank 28 must be stuffed and punched as shown in FIG. Thus, the female screw can be formed on the metal cap 11 while saving the amount of material used.

The mechanism for engaging the pill faproof band portion 43 with the container mouth portion 51 is not limited to the case where the ratchet portion 45 blocks the rotation of the pill faproof band portion 43. It is needless to say that a conventional mechanism in which an appropriate projection or fin is formed on the pill-proof band portion 43 and the pill-proof band portion 43 does not rise together with the lid 10 when the container is opened can be appropriately used.

Further, when the metal cap 11 is locked and fixed by the inward bulging portion 38 formed inside the skirt portion 37 of the synthetic resin cap 31, the inner bulging portion 38 is fixed to the metal cap 11
The metal cap that engages with the lower end of the short cylindrical portion 17 in
In addition to preventing the 11 from falling off, the inward bulging portion 38 can be positioned between the hanging parts 21 to fix the metal cap 11 to the synthetic resin cap 31 so as not to rotate. is there.

[Effects of the Invention] The composite safety lid according to the present invention is a combination of a metal cap and a synthetic resin cap, in which a confirmation curved portion is formed on the metal cap, and the synthetic resin cap is covered with pilfer. It is a safety lid that double-displays the unopened state by forming a proof band, and it has a metal cap that has discontinuous projections that are screw parts and is fixed to the mouth of the container. In addition to the above, it is a composite safety lid that is resistant to heat treatment, and can accurately display the guarantee of alteration of the filling material by the confirmation bending portion and can also clearly indicate the initial opening.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a state in which a container safety opening according to the present invention is covered with a composite safety lid, FIG. 2 is a half cross-sectional view showing a metal cap, and FIG. 3 is a synthetic resin. FIG. 4 is a half cross-sectional view showing the cap, and FIG. 4 is a view showing a mold making when punching the metal cap from the metal plate. 10 …… Composite lid, 11 …… Metal cap, 13 …… Top plate, 15 …… Confirming curved part, 17 …… Short cylindrical part, 21 …… Hanging part, 23 …… Protruding part, 25… … Liner, 31 …… Synthetic resin cap, 33 …… Top plate part, 37 …… Skirt part, 38 …… Inward bulging part, 41 …… Weakened part, 43 …… Pilfap proof band part.

Claims (1)

[Scope of utility model registration request] 1. A composite lid body comprising a synthetic resin cap and a metal cap, wherein the metal cap has a spherical curved portion projecting upward at the center of the top plate portion. Has a short cylindrical portion at the periphery of the short cylindrical portion, has a plurality of hanging portions downward from the lower end of the short cylindrical portion, and has a structure having an inward projecting portion at the lower end of the hanging portion. The cap has a through hole in the center of the top plate portion, has a cylindrical skirt portion hanging from the peripheral edge of the top plate portion, and has an inward bulge portion inside the skirt portion, and The skirt has a structure having a pilfap proof band portion at the lower end of the skirt portion, and the metal cap is placed inward of the synthetic resin cap by an inward bulging portion inside the skirt portion of the synthetic resin cap. A composite safety lid characterized by being locked and fixed.