JPH0451192Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention is a container made of synthetic resin that ensures mutual welding between a bottomed cylindrical body and a head body fitted into the upper end of the body. It is related to.

[Conventional technology]

Concerning containers made of synthetic resin, there are various forms, and many products have been developed depending on their uses.

In addition, some liquid cosmetics, liquid drugs, etc. have relatively high viscosity.
Containers for storing such liquids are designed to be able to accurately dispense a fixed amount with simple operation. It is configured to be inserted and assembled into an outer shell made of synthetic resin, and an operating body capable of pressing the squeeze container is arranged in a portion corresponding to a window hole in the outer shell.

That is, the pressing piece of this operating body is placed in the part corresponding to the window hole, and the pressing piece is pressed to deform the squeeze container, increasing the internal pressure and pouring out the liquid. It exhibits an excellent effect in that it can reliably pour out the liquid.

In this configuration, the upper end of the outer shell is necessarily formed with an opening so that the operating body or the squeezeable container can be stored therein, and this opening must be closed after each member is assembled. A predetermined head body must be fitted and fixed to the upper end of the outer shell body with the mouthpiece of the squeezeable container protruding.

[Problem that the invention attempts to solve]

In the case of the above-mentioned configuration, the means for fitting and fixing the outer shell body and the head body are usually welded together using ultrasonic waves while applying a predetermined pressure.
As mentioned above, if the window hole is bored in the cylindrical wall of the outer shell, when the head body is fitted into the outer shell and a predetermined pressure is applied, the head body part corresponding to the window hole part This had the disadvantage that sufficient pressure could not be applied, resulting in incomplete welding.

In other words, since the window holes are formed in the portions of the outer shell corresponding to the window holes, sufficient repulsive force cannot be exerted when a predetermined pressure is applied. Welding of the parts cannot be reliably achieved.

The present invention relates to a container made of synthetic resin devised to eliminate the above-mentioned drawbacks and inconveniences of the conventional art. The purpose is to ensure mutual welding with the head body into which it is fitted.

[Means for solving problems]

Hereinafter, the present invention will be explained with reference to the drawings showing one embodiment of the present invention.

The synthetic resin container of the present invention has a main body 1 and a head body 5.
It consists of

The main body 1 is a cylinder with a bottom, and a window hole 3 is formed in a part of the cylinder wall 2.

The head body 5 has a top wall 7 on the top end of a short cylinder circumferential wall 6, and the short cylinder circumferential wall 6 is fitted into the top end of the main body 1, and a mouth pipe 8 stands on the flat top wall 7. Furthermore, a collar piece 9 is provided around the upper end outer periphery of the short cylindrical peripheral wall 6, and is mounted on the welded upper surface that is the upper part of the main body 1.

A welding piece 1 for ultrasonic welding is provided on the outer circumferential surface of the peripheral wall 6 of the head body 5 and the lower surface of the collar piece 9 at least at a location directly above the window hole 3.
0 is set.

The welding piece 10 provided on the outer circumferential surface of the peripheral wall 6 is in the form of a vertical strip, and comes into contact with the inner circumferential surface of the upper end of the main body 1 when the head body 5 is inserted into the upper end of the main body 1.
The welding piece 10 provided on the lower surface of the main body 1 contacts the welding upper surface of the main body 1 facing directly above the window hole 3.

[Effect]

In the above-described structure, when the head body 5 is inserted into the upper end of the main body 1 and ultrasonic waves are applied to each of the welded pieces 10, the welded pieces 10 are melted and the upper end of the main body 1, which is the opposing surface, is melted. It is welded to the inner circumferential surface of the part or to the welding upper surface of the main body 1.

During this welding operation, a predetermined pressure is applied to the head body 5 and the main body 1 in the axial direction to promote this welding. Since a welding piece 10 is provided on the lower surface of the welding piece 10, the welding piece 10 is
0 will surely be welded to the welding upper surface of the main body 1.

That is, as mentioned above, this window hole 3 of the main body 1
Even if the above-mentioned pressure was applied to the cylindrical wall 2 portion where the cylindrical wall 2 was perforated, sufficient pressure could not be applied because the repulsive force from the cylindrical wall 2 was weak, and reliable welding could not be achieved. Here, since the welding piece 10 is also provided at a location corresponding to that part, reliable welding can be performed.

〔Example〕

In the illustrated embodiment, the main body 1 has a substantially elliptical cylindrical shape, and a stepped portion 4 is formed on the inner peripheral surface of the upper end of the cylinder wall 2 by cutting the inner peripheral surface toward the upper end. When the short cylindrical peripheral wall 6 of the member 5 is fitted into the upper end portion of the main body 1, the collar piece 9 rests on this stepped portion 4. Therefore, the welded piece 1 on the lower surface of the collar piece 9
0 comes into contact with the upper surface of the stepped portion 4, which is the upper surface to be welded.

The welding piece 10 on the lower surface of the flange piece 9 may be provided only at a specific location, or may be provided over the entire circumference.

The embodiment shown in FIGS. 1 and 2 is a container for storing a relatively high viscosity liquid as shown in the conventional example, and the inner shell for storing the liquid is inserted and assembled into the main body 1. The body 11 is molded from soft synthetic resin,
It is a bottomed cylindrical body that also has a squeezy property and has a substantially elliptical flat cylindrical shape, and a tapered spouting cylinder portion 12 is provided at its upper end.

Further, the operating body 13 moves the pressing piece 14 to the main body 1.
The main body 1 is placed in the window hole 3 described above.
The inner shell body 11 made of soft synthetic resin is protected by being housed within the main body 1 made of hard synthetic resin. Since it is difficult to receive pressure from the outside, the liquid stored inside may spill over into the spout cylinder part 1.
In order to perform the pouring operation, press the pressing piece 14 located inside the window hole 3 inward to deform the inner shell 11 having the squeeze property inward. The main body 1 is held when pressing the pressing piece 14.
Since no external force is applied to other parts of the inner shell 11, a constant amount can always be poured.

Next, the head body 5 having the spout 8 is fitted and fixed into the upper end of the main body 1 with the operating body 13 and the inner shell 11 assembled into the main body 1. The spouting cylinder part 12 of the inner shell body 11 is fitted into the
The nozzle body 15 made of soft synthetic resin is attached in a posture in which the mouth tube 8 and the spout tube portion 12 are assembled integrally. Therefore, when the operating body 13 is operated to deform the inner shell 11, the internal pressure of the inner shell 11 increases, and the relatively high viscosity liquid within the inner shell 11 is transferred to the nozzle body 1.
A substantially constant amount is poured stably from the opening at the upper end of 5.

The cap body 16 is composed of an outer shell cap 17 and an inner shell cap 18, and the mouth pipe 8 of the head body 5 described above is screwed into the threaded tube provided on the inner shell cap 18. It is embedded.

〔effect〕

Since the synthetic resin container of the present invention has the structure described above, welding of the main body and the head body using ultrasonic waves is extremely easy and reliable.
Even if a window hole is made in a part of the cylindrical wall of the main body, the above-mentioned welding can be achieved reliably, the structure is simple and convenient to handle, and it has many excellent functions such as being easy to mold and assemble. have an effect.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing the assembled state of the present invention. FIG. 2 is an exploded perspective view of each component. FIG. 3 is an enlarged sectional view showing the assembled state of the main body and head body. Explanation of symbols, 1...Main body, 3...Window hole, 5...
Head body, 6...short cylinder peripheral wall, 7...top wall, 8...mouth tube, 9...flange piece, 10...welded piece.

Claims (1)

[Scope of utility model registration request] Main body 1 with a window hole 3 drilled in the cylindrical wall 2 of a bottomed cylindrical body
A flat top wall 7 with a spout 8 erected thereon is connected to the upper end of the short cylinder peripheral wall 6 that fits into the upper end of the main body 1, and the main body 1 is connected to the upper end of the short cylinder peripheral wall 6. It has a head body 5 around which a collar piece 9 is mounted on the welded upper surface which is the upper part of the head body 5, and a peripheral wall 6 of the head body 5.
A synthetic resin container comprising a welding piece 10 for ultrasonic welding on the outer circumferential surface of the collar piece 9 and at least at a portion directly above the window hole 3 on the lower surface of the flange piece 9.