JPH052459Y2 - - Google Patents

Description

[Detailed description of the invention] "Field of industrial application" This invention consists of a cap body for fitting the mouth and neck of a container, and a cap body for opening and closing a spout hole formed in the top wall of the cap body. It concerns a cap consisting of a lid plate attached to the upper surface of the top wall.

``Prior Art'' For example, in the cap shown in Figure 1 of Japanese Patent Publication No. 46-40821, a peripheral wall for screwing the container mouth neck hangs down from the periphery of the top wall, and a drawing hole is formed in the front part of the top wall. ,
and a cap body having through-holes formed in both left and right sides of the top wall behind the drawing hole, a base plate that is irremovably attached to the rear lower surface of the top wall, and a hook that stands up from the top surface of the base plate. A bearing member protruding upward from the top wall through the through hole and a pin engaged with the lower surface of the hook were attached to the rear left and right sides of the plate, and the lower surface of the plate closed the swinging hole. When the front end of the lid plate is pushed up, the rear end of the lid plate comes into pressure contact with the rear upper surface of the top wall of the cap body, elastically deforming the hook, and from this state, the lid plate is further rotated rearward. Then, the rear end of the lid plate comes off the rear upper surface of the top wall of the cap body, the hook is elastically restored, and the lid plate is thus elastically inverted to open the lid.

``Problem to be solved by the invention'' The conventional cap described above is formed by integrally molding the cap body, bearing member, and cover plate from synthetic resin, and then assembling them. If the main body and the bearing member can be integrally molded, the number of parts will be reduced to two, and the number of steps for molding and assembling the parts will certainly be reduced, resulting in lower costs. The above-mentioned bearing member is for attaching a bearing, that is, a hook, for biasing the lid plate to the cap body, so by directly protruding the hook from the top wall of the cap body, the above-mentioned cap body and bearing can be attached. However, in order to integrally mold the cap body with the hook protruding directly from the top wall using synthetic resin, a transparent hole for removing the mold must be provided on the top wall below the hook. It will be necessary to drill holes. However, if such a hole is drilled in the top wall of the cap main body, the contents stored in the container to which the cap is fitted will leak through the hole, and therefore a separate member is required to close the hole. Even if a hook is provided as a bearing directly from the top wall of the cap, the number of members becomes three again because the above-mentioned member for closing the through hole is required, which reduces the cost. It is not effective in making it cheaper.

In this case, when a hook is provided protruding from the top wall of the cap body as described above, the through hole formed in the top wall portion below the hook is blocked by the mouth and neck of the container body into which the cap is fitted. By doing this, the conventional cap described above can be formed from two parts, the cap body and the lid, and at the same time, by retracting the upright position of the hook further back than in the past, it is possible to move away from the pin center axis. The length to the front end of the lid plate is increased, and the front part of the lid plate is easily pushed up against the elasticity of the hook.

"Means for solving the problem" Inner peripheral wall 9 that fits into both the inner and outer surfaces of the mouth and neck of the container body
and an outer circumferential wall are provided vertically from the top wall 2, and a through hole 8 is provided in the top wall portion surrounded by the inner circumferential wall, and a through hole 8 is provided in the top wall portion between the inner circumferential wall and the outer circumferential wall and in contact with the rear inner surface of the outer circumferential wall. A cap body 3 is provided with long holes 12 extending in the left and right direction in each part, and a rear part of the outer circumferential wall forming the rear wall surface of the long holes 12 is extended upwardly and curved to form a hook 1. , the pin 4 engaged with the lower surface of the hook 1 is installed between the rear parts of the notch 6 provided at the rear part of the top plate 5, and the top plate 5 is connected to the top wall 2.
It consists of a cover plate 7 whose upper surfaces are covered, and the horizontal widths of the hook 1 and the notch 6 are approximately the same, and the upper surface of the top wall 2 is an extension of the upper surface of the top wall 2 below the central axis of the pin. The distance from the center axis of the pin to the rear end of both sides of the notch 6 is made longer than the distance to the surface, so that the cover plate can rotate around the pin 4 against the elasticity of the hook 1. .

"Operation" When the cover plate 5 is rotated around the pin 4 from the cover plate closed state, the horizontal widths of the hook 1 and the notch part 6 are made almost the same, and the widths of the hook 1 and the notch part 6 are made almost the same, and the center axis line is Since the distance from the pin center axis to the rear end on both sides of the notch 6 is longer than the distance to the extended surface of the upper surface of the lower top wall 2, the peripheral edge portions of the top plate 5 on both sides of the notch 6 are The hook 1 is elastically deformed when it comes into pressure contact with the rear upper surface of the top wall 2 of the cap main body, and when it passes the dead center, the hook elastically restores itself, and the rear end portions of the top plate 5 on both sides of the notch are pushed forward. Open the lid as shown by the imaginary line in Figure 2. When the front end of the top plate 5 located at the rear is pushed upward and forward from the opened state, the lid is closed by elastic reversal after passing through the dead center again.

``Embodiment'' The cap of the present invention consists of a cap body 3 and a lid plate 7.

The cap body 3 has an inner circumferential wall 9 and an outer circumferential wall that are fitted to the inner and outer surfaces of the mouth and neck of the container body, and the inner circumferential wall 9 and the outer circumferential wall hang down from the lower surface and the outer circumference of the top wall 2, and the cap body 3 is housed inside the container at the front of the top wall portion surrounded by the inner circumferential wall 9. It has a through hole 8 for material outflow, and a long hole 12 extending in the left-right direction is provided in the top wall portion between the inner circumferential wall 9 and the outer circumferential wall, and in the portion in contact with the rear inner surface of the outer circumferential wall.
to be drilled. The elongated hole is a mold extraction hole for forming the hook 1, and the hook 1 is formed by extending and curving the rear portion of the outer circumferential wall forming the rear wall surface of the elongated hole onto the elongated hole 12 by utilizing the elongated hole. Reference numeral 10 denotes a nozzle that stands up from the upper surface of the outer periphery of the through hole 8 described above.

The lid plate 7 has a notch 6 having approximately the same width as the hook 1 at the rear of the top plate that covers the upper surface of the top wall 2 described above.
At the same time, a pin 4 installed between the rear parts of the notch is engaged with the lower surface of the aforementioned hook 1, and a top wall 2 below the central axis of the pin is formed.
The distance from the pin center axis to the rear end of the top plate 5 on both sides of the notch 6 is made longer than the distance to the extended surface of the top surface, so that the pin 4 can resist the elasticity of the hook 1 described above.
It is formed so that it can rotate around the center. Further, a plug portion 11 is attached to the lower front surface of the top plate 5, and the plug portion is fitted into the spouting tube 10 described above.

"Effect of the invention" The present invention has the above-mentioned structure, and the elongated hole 12, which is formed in the top wall 2 of the cap body and serves as a hole for extracting the hook forming mold part, is fitted into the inner and outer surfaces of the mouth neck of the container body. Since the cap is bored in the top wall between the inner circumferential wall 9 and the outer circumferential wall, when the cap is fitted to the container neck, the inner circumferential wall 9 is fitted to the inner surface of the container neck. Since the long hole 12 is closed by the mouth and neck of the container body, there is no need to provide a closing body for the long hole 12, and the cap is formed of two members, the cap body 3 and the lid plate 7. I can do it,
Costs can be reduced.

Furthermore, in the conventional cap described above, a through hole is drilled in the rear part of the top wall of the cap body, and the hook is erected by inserting the through hole, so at least the through hole and the hook are connected to the rear part of the peripheral wall of the cap body. Although it will be located in front of the inner surface, in this proposal, a long hole 12 as a hook forming mold extraction hole is bored in the top wall portion that contacts the rear inner surface of the outer circumferential wall of the cap main body.
The hook 1 is formed by extending and curving the rear part of the outer circumferential wall that forms the rear wall surface of the elongated hole 12 upwards, that is, instead of inserting the hook into the through hole and standing up the hook as in the conventional example. Since the hook 1 is erected from the rear part of the outer peripheral wall behind the elongated hole 12, the position of the hook 1 is raised from the rear of the top wall of the cap body than in the past.
The length from the central axis of the pin 4 that engages with the lower surface to the front end of the cover plate can be increased, so even if the cap is made smaller, the cover plate 7 for rotation around the pin 4 can be made larger. There is no difficulty in pushing up the front part.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view of the cap according to the present invention, and FIG. 2 is a sectional view thereof. 3...Cap body, 6...Lid plate.

Claims (1)

[Scope of utility model registration request] Inner peripheral wall 9 fitted to both the inner and outer surfaces of the container mouth neck
and an outer circumferential wall are provided vertically from the top wall 2, and a through hole 8 is provided in the top wall portion surrounded by the inner circumferential wall, and a through hole 8 is provided in the top wall portion between the inner circumferential wall and the outer circumferential wall and in contact with the rear inner surface of the outer circumferential wall. A cap body 3 is provided with long holes 12 extending in the left and right direction in each part, and a rear part of the outer circumferential wall forming the rear wall surface of the long holes 12 is extended upwardly and curved to form a hook 1. , the pin 4 engaged with the lower surface of the hook 1 is installed between the rear parts of the notch 6 provided at the rear part of the top plate 5, and the top plate 5 is connected to the top wall 2.
It consists of a cover plate 7 whose upper surfaces are covered, and the horizontal widths of the hook 1 and the notch 6 are approximately the same, and the upper surface of the top wall 2 is an extension of the upper surface of the top wall 2 below the central axis of the pin. The distance from the center axis of the pin to the rear end of both sides of the notch 6 is made longer than the distance to the surface, so that the cover plate can rotate around the pin 4 against the elasticity of the hook 1. A cap characterized by: