JPH0531098Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a cap that can be opened and closed easily and reliably.

"Prior Art" Caps that are attached to the mouthpiece of containers, lids that are attached to the bodies of compact containers, etc. are required to ensure a certain degree of sealing of the container and to be easy and reliable in opening and closing operations. Ru.

Therefore, for example, a method is used in which a torsion spring is attached to the threaded part that connects the main body and the lid.

That is, the closure of the lid is ensured by locking the ends of the main body and the lid, and when the locks are released, the torsion spring whose both ends are in elastic contact with the main body and the lid exerts an unwinding force. It acts by elastically returning and opening the lid.

With this configuration, the lid can be opened by simply releasing the lock, and the lid can be locked by simply closing the lid, making it extremely easy to handle.

As mentioned above, the opening/closing operation here is achieved by the locking portions at the ends of the main body and the lid, but since these operation portions are exposed to the outside, they may not be engaged due to careless operation. There is an inconvenience that the lock may come undone, and therefore it is desirable to make this locking and unlocking simple and reliable.

"Problems to be solved by the invention" The present invention is an opening/closing cap devised in response to the above-mentioned conventional demands, and the purpose is to ensure a certain degree of sealing of the contents inside the container and to simplify the opening/closing operation. With the goal.

"Means to solve problems" The configuration of the present invention will be explained below with reference to the drawings.

The cap of the present invention is composed of a cylindrical body 5, a lid body 12, and a ring body 18.

A cylindrical body 5 having a locking strip 11 at the front end of the upper end is assembled to the spout 2 of a predetermined container 1, and a lid 12 for closing the upper end is assembled to the rear end of the cylindrical body 5.

A threaded piece 14 incorporating an opening torsion spring 17 is provided at the rear end of the top plate 13 of the lid body 12, and this threaded piece 14 is pivotally attached to the rear end of the cylindrical body 5 and assembled. A locking piece 15 having a locking protrusion 16 that locks onto the locking strip 11 from below is suspended from the front end of the top plate 13.

The ring body 18 is rotatably fitted into the outer periphery of the upper end of the cylindrical body 5, and has an operating protrusion 21 erected at a portion facing the locking piece 15 from below. At least one of the circumferentially opposing side end surfaces of the working protrusion 15 and the working protrusion 21 is an inclined surface.

"Operation" In the above-described configuration, when the lid 12 is pushed down against the elasticity of the opening torsion spring 17, the locking protrusion 16 of the locking piece 15 touches the locking strip 11 from below. The lid body 12 is locked from below to close the upper end of the cylinder body 5.

In this state, the locking piece 15 and the working protrusion 21 are in positions facing each other in the circumferential direction, and at least one of their circumferentially opposing side end surfaces is an inclined surface, so that the ring body 18 can be moved in a predetermined direction. When the slanted surface rotates the working protrusion 21 to the locking piece 1,
5 is pushed up, the locking protrusion 16 and the locking line 11 are disengaged, and the lid body 12 is rotated and opened by the elasticity of the opening torsion spring 17.

When the lid body 12 is pushed down again, the locking piece 15
The lower end of the locking piece 21 comes into contact with the upper end of the working protrusion 21, but as described above, at least one of the side end surfaces facing each other in the circumferential direction is an inclined surface.
5 is transmitted as a rotational movement of the ring body 18, and the locking protrusion 16 and the locking line 11 are locked together.

"Embodiment" An embodiment of the present invention will be described below with reference to the drawings.

The mouthpiece 2 of the container 1 is erected via a stepped portion, and an undercut strip 3 and a thread 4 are provided around the outer peripheral surface of the upper end of the mouthpiece 2 .

The cylindrical body 5 has a structure in which an assembly cylindrical wall 8 is erected on the inner periphery of the upper end of a short cylindrical wall 6 to be assembled to the mouth tube 2, and a threaded thread that is screwed into the thread 4 is provided on the inner periphery of the short cylindrical wall 6. 7 is provided around the periphery, and a front end recess 9 and a rear end recess 10 are provided at the front end and rear end of the assembly cylinder wall 8, respectively.
is pivotally mounted in the rear end recess 10 with the opening torsion spring 17 installed, and the locking protrusion 16 locks from below the upper end of the front end recess 9 into which the locking piece 15 is fitted. A stop strip 11 is provided protrudingly.

Further, the short cylinder-shaped ring body 18 is rotatably fitted into the outer periphery of the assembled cylinder wall 8 of the cylinder 5, and has a structure in which the inner cylinder 20 is integrally assembled with the outer cylinder 19 in circumferential contact with the outer cylinder 19. The height and width of is slightly higher than the height and width of the assembly cylinder wall 8, and the inner cylinder 20 is located in the lower half of the inner circumference of the outer cylinder 19, and the working protrusion 2 is attached to the upper end of the inner cylinder 20.
1 is erected.

Therefore, when the lid body 12 is closed, the locking piece 15
is fitted into the front end recess 9 between the assembly cylinder wall 8 and the outer cylinder 19, and the locking portion between the locking strip 11 and the locking protrusion 16 is not exposed to the outside, so that there is no interference from the outside. There is no risk of the locking being released due to inadvertent action.

In the illustrated embodiment, a plurality of working protrusions 21 are provided in a wave shape, and the locking piece 15 has a shape corresponding to the wave shape, so that when the lid body 12 is closed, the ring body 18 is rotated. Depending on the posture, the locking piece 15
Even if it is located directly above any of the working protrusions 21, it can smoothly contact the side end surface of the locking piece 15 and the side end face of the working protruding piece 21, and the ring body 18 can be rotated. .

In addition, at the upper end of the mouth pipe 2, there is a gasket 22 in the shape of a short cylinder with a top, which is attached to the undercut strip 3.
is fitted to ensure a seal between the upper end of the spout 2 and the assembly cylinder wall 8, and a thin circular groove 23 is cut into the top plate of the gasket 22, making it easy to use. Sometimes it can be separated and opened.

"Effect of the invention" The present invention has the structure and functions as explained above.

Therefore, by rotating the ring body 18, the lid 12 can be opened without directly touching the lid 12, and the lid 2 can be closed and maintained by simply pushing down the lid 2 to close it. .

Therefore, the opening/closing cap of the present invention has many excellent advantages such as easy opening/closing operation, ensuring the closed state so that it will not open accidentally, and simple construction and easy molding. It has an effect.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of the main part of the present invention in a closed state. FIG. 2 is a sectional view in the open state. FIG. 3 is an explanatory diagram showing the mutual relationship between the locking piece and the working protrusion. Explanation of symbols, 1... Container, 2... Mouthpiece, 5...
Cylindrical body, 11... Locking strip, 12... Lid body, 13...
Top plate, 14... Threaded piece, 15... Locking piece, 16...
... Locking projection, 17 ... Torsion spring, 18 ... Ring body, 21 ... Working projection piece.

Claims (1)

[Scope of utility model registration request] A cylindrical body that is assembled to the mouthpiece of the container and has a locking strip at the front end of the upper end, and a screw piece at the rear end that is pivotally attached with an opening torsion spring installed at the rear end of the cylindrical body. A locking piece having a locking protrusion that locks onto the locking strip from below is hung down from the front end of the top plate, and a lid body that closes the upper end of the cylinder body and a lid body that is rotatable around the outer periphery of the upper end of the cylinder body. a ring body that is fitted into the locking piece and has a working protrusion standing up on a portion facing the locking piece from below, and at least one of side end surfaces facing in the circumferential direction of the locking piece and the working protrusion. A cap that opens and closes as an inclined surface.