JPH0426350Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a container lid device with a cap seal used for containers such as drums.

(Prior art) Conventionally, after filling a container such as a drum with contents, a mouthpiece provided on the top plate of the container is closed with a lid, and the contents inside the container are removed or replaced before use. In order to prevent unauthorized use, a cap seal is placed on the lid. As one example, as shown in Japanese Utility Model Application Publication No. 55-176145, as shown in Figure 5, a cap c consisting of a peripheral wall b equipped with a male thread a is connected to an upper end bending curve f of a rising cylindrical portion e of a top plate d and a top plate. d, and attach a lid g to the cap c.
A cap seal h made of a thin metal plate is fitted onto the lid g, and the cap seal h
It has been proposed that the lower edge i is bent inward.

(Problem that the invention attempts to solve) However, when using this configuration,
A cap seal made of a thin metal plate that matches the shape and size of the lid g must be prepared in advance, and after the cap seal h is fitted onto the lid g, the underline i of the cap seal h must be bent inward. There must be. Therefore, it is necessary to prepare a cap seal h made of a thin metal plate that matches the shape and size of the lid g, and after fitting the cap seal h onto the lid g, the lower edge i of the cap seal h must be bent. There is a problem that requires . Also cap seal h
Since the lower edge i of the cap is simply bent inward, the cap seal h can be relatively easily removed from the lid g by raising the lower edge i slightly outward. Since it is also possible to reattach the device, there is a problem in that it is not possible to reliably prevent unauthorized use before use. Furthermore, even when the cap seal h is fitted onto the lid g, it is possible to open and close the lid g by grasping the outer periphery of the lid g together with the cap seal h and applying rotational force.
After all, unauthorized use cannot be reliably prevented.

(Problems to be solved by the invention) The present invention solves these conventional problems, prevents the cap from rotating when attaching and removing the lid to the cap, and prevents unauthorized use before use. It is an object of the present invention to provide a container lid device with a cap seal.

The present invention was devised to solve the above-mentioned problems, and consists of a peripheral wall provided with a male thread, an outwardly directed rim integrally provided at the lower end of the peripheral wall, and a container top plate. In a container lid device with a cap seal, the container lid device includes a cylindrical cap that is fitted into a rising cylinder provided in the cap, and a cap seal that seals a lid that is externally fitted onto the cap and is screwed onto the cap. a protrusion provided on the lower surface in contact with the outer periphery of the projecting edge and having an inclined surface on the outer periphery side; and a protrusion provided on the top plate that engages with the protrusion and is provided between the inclined surface and the external surface. and a cap seal made of a heat-melting synthetic resin that covers the lid and is provided with a protrusion that is inserted into the gap when the lid is screwed onto the base of the lid. Features.

(Function) The inclined surface of the protrusion provided on the lower surface of the protrusion of the cap and the recess provided on the top plate that engages with the protrusion create a gap that opens to the outside, and the lid is fitted onto the cap with an external screw. In this state, a part of the cap seal made of a heat-melting synthetic resin is inserted into the gap to seal the lid.

(Example) The present invention will be explained below with reference to the drawings.

1 to 3 show one example of implementing the present invention.

In the drawings, reference numeral 1 indicates a cap, and the cap 1 is a cylindrical body having a circumferential wall 3 having a male thread 2 and an outwardly projecting edge 4 integrally formed at the lower end of the circumferential wall 3.
Reference numeral 5 indicates a top plate of a container such as a drum can, and the top plate 5 has a rising cylinder portion 7 having an upper bent edge 8 formed integrally around an opening 6 of the top plate 5. The base 1 was sandwiched between the top plate 5 and the upper bent edge 8 of the rising cylindrical portion 7 such that the upper end of the base 1 was pressed against the upper bent edge 8. Reference numeral 9 denotes a lid, and the lid 9 is a bottomed cylindrical body having a peripheral wall portion 11 with a female screw 12 connected to the entire periphery of the panel portion 10 in a hanging manner. Externally screwed on.

The above configuration is the same as the conventional one, but in the illustrated embodiment, as shown in the third figure, a gap is provided on the lower surface of the protrusion 4 of the cap 1, and the end side of the protrusion 4 is provided with a gap. Four protrusions 13 having inclined surfaces 14 facing outward and upward are provided. Further, as shown in the second figure, each protrusion 13 can be freely fitted into a protrusion 1 on the top plate 5 at a position opposite to each protrusion 13.
3 and the same number of depressions 15 were provided. and each depression 15
When each protrusion 13 is fitted into the
A gap 18 is formed between the outer upper end 16 of the inclined surface 14 and the outer peripheral edge 17 of each depression 15, and a gap 19 is formed in the depression 15 below the inclined surface 14 of each protrusion 13. Further, the outer surface of the lid 9 externally fitted onto the cap 1 is covered with a cap seal 20 made of a heat-melting synthetic resin.
A part of the lower edge 21 of the 0 was protruded to form a protruding piece, and the protruding piece was inserted into the gap 19 through the gap 18.

Since the configuration is as described above, the protrusion 4 of the cap 1
Since each protrusion 13 provided on the lower surface of the base plate 5 is fitted into each recess 15 provided on the top plate 5, the base 1
The cap 1 does not rotate together with the lid 9 when the lid 9 is attached or removed, that is, when the lid 9 is opened or closed. A cap seal 20 made of a heat-melting synthetic resin covers the entire outer surface of the lid 9 which is externally screwed onto the cap 1, and a portion of the lower edge 21 of the seal 20 passes through the gap 18 into the air gap 1.
9 is inserted and is pill-proof, so in case of unauthorized use, the cap seal 20 will be torn and a trace will surely be left, thereby preventing unauthorized use.

Furthermore, since the entire outer surface of the lid 9 is covered with the cap seal 20, the sealing effect of the lid 9 against the base 1 is further improved. Further, unlike the conventional example, there is no need for a processing operation to bend the lower edge of the cap seal inward.

Figure 4 shows another embodiment of the product of the present invention in a state similar to that shown in Figure 2. When the container material is made of a material with good drawability, such as 18 cans made of tin plate, the container When attaching the base 1 to the opening 6 of the top plate 5, the base 1 is strongly pressed against the top plate 5 side to form a recess 15 in the top plate 5 that fits with the protrusion 13 of the base 1, and the protrusion 13 is inserted into the top plate 5. It fits into the recess 15 to form a gap 19 extending from the outer upper end 16 of the protrusion 13 to below the inclined surface 14. Then, a cap seal 20 made of a heat-melting synthetic resin is applied over the entire outer surface of the lid 9 which is externally screwed onto the cap 1, and a portion of the lower edge 21 of the seal 20 is inserted into the gap 19. I inserted it.

The effects of the configuration described above are no different from those of the configurations shown in FIGS. 1 to 3.

In addition, if a transparent heat-melting synthetic resin is used for the cap seal 20, even if letters or figures indicating the contents of the container are displayed on the lid 9, they can be prevented from being erased or obscured by friction or the like. I can do it.

(Effect of the invention) As described above, according to the present invention, a protrusion having an inclined surface facing outward and upward is provided on the lower surface of the protruding edge of the cap, and the protrusion is fitted into the top plate at a position opposite to the protrusion. A cap made of a thermofusible synthetic resin that is provided with a recess that can be freely fitted, and when the protrusion of the cap is fitted into the recess, a gap is formed extending from the outer upper end of the protrusion to the bottom of the inclined surface, and the lid is covered. Since the protrusion formed on a part of the lower edge of the seal is inserted into the gap, the protrusion and the recess are fitted, which prevents the cap from rotating when the lid is opened and closed. A portion of the cap seal is inserted into the gap and fixed to the container body, so if an attempt is made to open the lid illegally before it has been opened properly, if the cap seal is rotated even slightly, the lid will be damaged. Since the cap seal is torn and leaves traces of unauthorized use, it has the effect of reliably preventing unauthorized use.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway side view showing an example of the implementation of the present invention, Fig. 2 is a sectional view taken along the line - - in Fig. 1, and Fig. 3 is an example of the base used in the present invention, and Fig. A is a side view. ,
Fig. B is a bottom view, Fig. 4 is a partially cutaway side view of another embodiment of the product of the present invention, and Fig. 5 is a partially cutaway side view of a conventional example. 1...cap, 2...male thread, 3...peripheral wall, 4...
...Protrusion, 5...Top plate, 7...Rising tube part, 8...
...upper end folding curve, 9...lid, 13...protrusion, 14...
... Sloped surface, 15 ... Recess, 16 ... Outer upper end, 19
...Gap, 20...Cap seal, 21...Lower edge.

Claims (1)

[Scope of utility model registration request] a cylindrical cap consisting of a peripheral wall provided with a male thread and an outwardly projecting edge integrally provided at the lower end of the peripheral wall, and fitted into an upright cylindrical portion provided on the top plate of the container; In a container lid device with a cap seal, which includes a cap seal for sealing a lid that is externally fitted and screwed onto the cap, the cap seal is provided on the lower surface of the flange of the cap in contact with the outer periphery of the rim, and on the outer periphery side. a protrusion having an inclined surface; a recess provided on the top plate that engages with the protrusion and forms a gap between the inclined surface and the opening to the outside; 1. A container lid device with a cap seal, comprising a cap seal made of a heat-melting synthetic resin and provided with a protrusion that is inserted into the gap when the cap is screwed onto the cap.