JPS641255Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Purpose of the invention] (Field of industrial application) The invention is a flexible synthetic resin container mainly used to store ketchup, mayonnaise, etc. and serve it at the table. Regarding opening/closing devices.

(Prior Art) In the conventional container described above, the screw cap, cork stopper, etc. that close the mouth of the container must be attached and removed one by one each time a filler such as mayonnaise is dispensed.

(Problem to be solved by the invention) However, the operation of attaching and detaching the screw cap and cork stopper was extremely troublesome, and there were cases where the screw cap and cork stopper were rolled over and lost.

Therefore, an object of the present invention is to provide a device for opening and closing the mouth of a synthetic resin container, which makes it extremely easy to open and close the mouth of the container, and eliminates the need to remove the lid from the container each time the container is used. It is in.

[Structure of the invention] (Means for solving the problem) In order to achieve the above object, the mouth opening/closing device for the synthetic resin container according to the present invention has a container opening 2.
A bellows tube 6 is connected to the center of the ceiling plate 5 of the lid portion 4 which fits into the bellows tube 6, and a needle tube 7 having a filler outlet is provided at the tip of the bellows tube 6, and an overhanging portion 8, on both sides of the tip. 8
The cover body 9, which has an opening/closing valve part 11 cut into the top part 10 and which is opened and closed by the upward movement of the protruding parts 8, 8, can be inserted into the needle-shaped tube 7 without being pressed into contact with the tip of the needle-shaped tube 7. It is configured to fit into the pipe 7.

(Function) When the abdomen of the synthetic resin container is pressed in order to dispense the filling, the bellows tube 6 pushed by the filling stretches, and the needle tube 7 is also pushed up, causing its overhang. The parts 8, 8 push open the on-off valve part 11 and protrude to the outside of the cover body 9, and at the same time, an amount of filler corresponding to the above-mentioned pressing force is extruded from the extrusion port of the needle tube 7.

When the pressing force on the container is released, the bellows tube 6 automatically contracts, the needle tube 7 is retracted into the cover body 9, and the on-off valve portion 11 is closed.

(Example) An embodiment of the present invention will be described below with reference to the accompanying drawings.

Reference numeral 3 denotes an opening/closing device main body, which is removably fixed to the opening 2 of the container 1 made of flexible synthetic resin with a screw. A bellows tube 6 is connected to the center of the ceiling plate 5 of the lid portion 4 of the main body 3 of the opening/closing device 3 provided with this screwed portion, and a needle tube 7 is integrally molded at the tip of the bellows tube 6. Reference numerals 8 and 8 denote projecting portions protruding from both sides of the tip of the needle tube 7, and the tip of the needle tube 7 has an opening for extruding the filling material.

Reference numeral 9 denotes a cylindrical cover body with a pointed shape made of elastic synthetic resin or the like, which includes a bellows tube 6 and a needle tube 7.
, and with the protruding parts 8, 8 not normally in pressure contact with the inner wall surface of the cover body 9, its lower end fits into the shaped part protruding from the top surface of the ceiling board 5. ,
It is fixed by screwing or other means.

The top part 10 of the cover body 9 is provided with an on-off valve part 11 that is normally kept closed, and in this embodiment, a notch 12 in the shape of a square is provided in the top part 10 to form the on-off valve part 11. .

Reference numeral 13 denotes a stopper that is provided in a protruding manner on the inner wall surface of the cover body 9 to restrict the upward movement of the bellows tube 6.

Next, the operation of the above configuration will be explained.

When the abdomen of the container 1 is pressed to dispense the filling from inside the container 1, which is filled with a filling material such as mayonnaise and the opening/closing device body 3 is attached in the state shown in FIG. Pressure is applied to the object, and this pressure is transmitted to the bellows tube 6 and causes the bellows tube 6 to expand. Therefore, the needle tube 7 is pushed up, and both the protruding parts 8, 8 push up the on-off valve part 11 formed on the cover body 9, and push the on-off valve part 11 against the self-closing force. It is opened and protrudes from the cover body 9. Then, from the released extrusion port,
An amount of filling corresponding to the pressing force of the container 1 is extruded.

Next, when the pressing force on container 1 is solved, container 1
returns to its original shape, the pressure exerted on the filling disappears, the bellows tube 6 contracts, and the needle tube 7 also retracts into the cover body 9, causing the on-off valve section 11, which had been opened, to retract. The valve automatically returns to the closed state.

In this way, according to the above structure, unlike the conventional one, there is no need to attach and detach the lid one by one each time the filling is dispensed from the container 1.

However, since the extrusion of the filler from the extrusion port is performed after the extrusion port pushes open the on-off valve section 11 and protrudes outside the cover body 9, the vicinity of the on-off valve section 11 is pushed out. Contamination by fillers is almost eliminated.

In the above structure, the shape of the extrusion port of the needle tube 7 is a single letter shape, and the shape of the on-off valve portion 11 is correspondingly shaped. The purpose of the present invention can be achieved even if the design is changed appropriately, such as by using a letter-shaped notch shape.

[Effects of the invention] As is clear from the above explanation, the opening/closing tool for the mouth of the synthetic resin container according to the present invention has an opening/closing device located at the center of the ceiling plate 5 of the lid 4 that fits into the container mouth 2. The bellows tubes 6 are connected to each other, and a needle-like tube 7 having a filler outlet is provided at the tip of the bellows tube 6, and projecting portions 8, 8 are integrally formed on both sides of the tip. A cover body 9 in which an opening/closing valve part 11 that opens and closes by the upward movement of the needle 8 is cut into the crown part 10 is attached to the needle-shaped tube 7.
Since the structure is such that it fits into the needle-like tube 7 without being pressed into contact with the tip of the container 1, it is extremely easy to open and close the opening of the container when dispensing the filling from the container 1, and it is also possible to open and close the mouth of the container one by one when dispensing the filling from the container 1. There is no need to remove the lid.

Moreover, since the extrusion of the filler from the extrusion port is carried out with the tip of the needle tube 7 provided with the extrusion port protruding outside the cover body 9, the opening/closing valve portion 11
There is no need for the vicinity of the filler to be contaminated by the filling material.

[Brief explanation of the drawing]

The drawings illustrate embodiments of the present invention, with FIG. 1 being a longitudinal sectional view and FIG. 2 being a perspective view showing the main parts of a needle tube. 1... Container, 2... Mouth, 3... Opening/closing tool body,
4... Lid part, 5... Ceiling plate, 6... Bellows tube, 7...
... Needle tube, 8 ... Projection part, 9 ... Cover body, 1
0...Top of head, 11...Opening/closing valve part, 12...Flat-shaped notch, 18...Stopper.

Claims (1)

[Scope of utility model registration request] A bellows tube 6 is connected to the center of the ceiling plate 5 of the lid 4 that fits into the container mouth 2, and a needle tube 7 having a filler outlet is provided at the tip of the bellows tube 6. The projecting portions 8, 8 are integrally formed, and the projecting portions 8, 8 are integrally formed.
The cover body 9, which has an opening/closing valve part 11 which is opened and closed by the upward movement of the needle 8, cut into the crown part 10, is inserted into the needle-shaped tube 7 without being pressed into contact with the tip of the needle-shaped tube 7.
A mouth opening/closing device for a synthetic resin container, characterized in that it is configured by being fitted into a container.