JPH044579Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to an opening device for liquid containers, and particularly to an opening device for portable beverage containers such as water bottles.

[Conventional technology and its problems]

BACKGROUND ART A cap opening device is conventionally known in which a liquid discharge port is provided on the upper end surface of a lid of a liquid container, and a cap provided at the discharge port is opened and closed by a so-called one-touch operation.

In such a cap opening device, a structure is adopted in which the cap is closed by pressing it against the lower surface of the discharge port, and when opening the cap, the cap is pushed down by an operating rod provided on the lid. If this is attempted, it is necessary to provide an operating rod on the underside of the lid, and it is also necessary to provide a spring device on the underside of the lid for imparting elasticity in the upward direction to the stopper.

Therefore, there is a problem that the structure of the lower surface of the lid becomes complicated and assembly work becomes difficult. Therefore, the object of this invention is to solve the above-mentioned problems and provide a simple and easy-to-assemble plug-opening device.

[Means for solving problems]

In order to solve the above problems, this invention provides a discharge port 3 on the upper end surface 2 of the lid main body 1, and
In a liquid container opening device in which a stopper 4 is provided on the lower surface of the discharge port 3 so as to be freely openable and closable, an inclined surface 5 is formed on the upper surface of the stopper 4 and projects upward from the discharge port 3 when closed; The support arm 6 of the plug body 4 is formed of an elastic material, and its end is attached to the inner surface of the lid body 1, and is guided to slide on the upper surface of the upper end surface 2 in the direction of inclination of the inclined surface 5 of the plug body 4. An operating rod 7 is provided with its tip facing the inclined surface 5.

[Effect]

When the operating rod 7 is pushed in, its tip rides on the inclined surface 5 of the stopper 4 and the support arm 6 is bent.
Release the discharge port 3. Further, when the operating rod 7 is returned to its original state, the plug body 4 returns to its original state due to the elasticity of the support arm 6, and closes the discharge port 3.

〔Example〕

Hereinafter, embodiments of this invention will be described based on the accompanying drawings.

The lid body 1 has a threaded portion 8 by which it is threadedly connected to a container 9. A discharge port 3 is provided on the upper end surface 2 of the lid body 1 so as to be offset to one side, and a guide groove 10 is provided one level lower than the surface on which the discharge port 3 is provided (see FIGS. 2 and 5). Further, a wall is provided around the discharge port 3, thereby forming a drinking spout 11.

The discharge port 3 is provided with a plug 4 that is pressed from the lower surface thereof, and a seal member 12 provided on the plug 4 maintains liquid tightness. An inclined surface 5 is provided on the upper surface of the plug body 4. This slope 5
protrudes from the discharge port 3 and faces the guide groove 10 side.

The support arm 6 of the plug body 4 is bent approximately 90 degrees, and is attached by forcibly fitting an engaging protrusion 13 provided at its tip into the upper end surface 2 forming the bottom surface of the guide groove 10. The support arm 6 is made of a highly elastic material such as polyacetal resin (trade name "Dyuracon") or a thin metal spring. Further, a guide member 13' for the support arm 6 is provided on the lower surface of the upper end surface 2.

The operating rod 7 is slidably inserted into the guide groove 10 described above. The operating rod 7 has guide portions 14 (see FIGS. 2 and 5) protruding from both sides thereof, and the guide portions 14 are provided in recesses 1 provided on both sides of the guide groove 10.
It's stuck in 5.

One end of the operating rod 7 passes through the inner wall of the spout 11 and faces the inclined surface 5 of the stopper 4, and an engaging protrusion 16 is formed at the penetrating portion to prevent it from coming off. . At the other end of the operating rod 7 is an operating button 1.
7 is provided. Further, a spring receiving portion 18 is provided in the middle of the operating rod 7, and the spring receiving portion 18
A spring 19 is interposed between the upper end surface 2 and the stepped portion of the upper end surface 2 to impart elasticity to the operating rod 7 in the pushing direction.

Further, a hinge 20 is provided protrudingly at the end of the guide groove 10, that is, above the operation button 17,
An opening/closing lid 21 is attached to the hinge 20. The opening/closing lid 21 is located on the upper surface of the guide groove 10 and the drinking spout 1.
1, and is lightly engaged with a small protrusion 22 provided on the outer surface of the drinking spout 11.

Note that the hinge 20 is provided with a spring that always biases the opening/closing lid 21 in the closing direction, and the small protrusion 22
The structure may be such that the elasticity of the opening closes the opening when the opening is disengaged from the opening.

The embodiment of this invention has the structure as described above, and its operation will be explained next.

In the closed state shown in FIG. 1, the plug body 4 is pressed against the lower surface of the discharge port 3 by the elasticity of its support arm 6, thereby closing it.

From this state, when the user puts his or her fingertip on the operating button 17 and presses it down, the operating rod 7 compresses the spring 19 and moves forward, and its tip rides on the inclined surface 5 and pushes down the stopper 4. This opens the discharge port 3, so that by tilting the container 9, you can drink from the spout 11.

Further, when the fingertip is removed from the operation button 17, the elasticity of the spring 19 and the elasticity of the support arm 6 return the plug body 4 to its original state.

〔effect〕

As mentioned above, this invention is achieved by making the stopper open by pressing the tip of the operating rod against the inclined surface projecting upward from the discharge port, and by forming the support arm of the stopper from an elastic material. Only the stopper and its supporting arm are assembled to the lower surface of the upper end surface of the lid body, and the operating rod is assembled to the upper surface.

Therefore, the structure on the lower surface of the lid is simplified, and the assembly work can be easily performed. In addition, since there are fewer parts that come into contact with the beverage inside the container, there is an effect of reducing dirt adhesion and causes of malfunctions.

[Brief explanation of drawings]

FIG. 1 is a sectional view of the embodiment, FIG. 2 is a partially omitted plan view of the same as above, and FIG. 3 is a sectional view of the same as above in the released state.
FIG. 4 is a partially cutaway perspective view of the same as the above, and FIG. 5 is a partially omitted perspective sectional view of the same. 1...Lid main body, 2...Top end surface, 3...Discharge port,
4... Plug body, 5... Inclined surface, 6... Support arm, 7...
...Operation stick.

Claims (1)

[Scope of utility model registration request] A stopper 4 is provided with a discharge port 3 on the upper end surface 2 of the lid main body 1 and opens and closes the discharge port 3 from the bottom surface thereof.
In the cap opening device for a liquid container, an inclined surface 5 is formed on the upper surface of the cap 4 and projects upwardly from the discharge port 3 when closed, and a supporting arm 6 of the cap 4 is provided.
is formed of an elastic material, its end is attached to the inner surface of the lid body 1, and a plug body 4 is attached to the upper surface of the upper end surface 2.
An opening device for a liquid container characterized in that an operation rod 7 is provided which is guided to slide in the direction of inclination of an inclined surface 5, and the tip thereof faces the inclined surface 5.