JPH01123653A - Extrusion vessel - Google Patents

Abstract

PURPOSE:To prevent the deterioration of the contents in the above vessel due to gases, etc., to eliminate the need for a pressure vessel, and to satisfactorily extrude the contents by using a bellows-bag structure which is contracted in the axial direction by the energization force of a repulsive means such as a compression spring when a valve is opened. CONSTITUTION:The compression spring 3 is interposed between the bottom 8 of the bag 1 consisting of a bottomed cylindrical vessel with the bellows 4 at the barrel part and the bottom 9 of the outer vessel 2, and the bag 1 is always energized in the contracting direction by the resiliency of the spring 3. When a push button, a spout, etc., are pushed to open the valve 11, the inside of the bag 1 communicates with the atmosphere, the bag 1 is contracted by the compressive force of the spring 3, and the contents in the bag 1 is easily extruded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to extruded containers. More specifically, the present invention relates to extrusion containers for storing high-viscosity or low-viscosity contents and extruding them as appropriate for use in daily life and various commercial and industrial fields.

[Prior Art] As a conventional extrusion container, there is a double aerosol container as shown in Japanese Patent Application Laid-Open No. 49-3213.

In this aerosol container, an inner container made of an elastic material is filled with contents, and pressurized gas is placed in the space between the outer container and the inner container to compress the inner container. When the valve is opened by pressure, the inner bag is compressed and the contents are forced out.

[Problems to be Solved by the Invention] However, in the conventional double aerosol container, there is a problem in that the pressurized gas passes through the inner container and touches the contents, impairing the quality of the contents. Furthermore, since the external container must be filled with pressurized gas, a pressure-resistant container must be used, which raises the problem of high costs.

In view of the above circumstances, an object of the present invention is to provide an extruded container that does not impair the quality of the contents and does not require the use of a pressure-resistant container.

[Means for Solving the Problems] The extruded container of the present invention is composed of an axially contractible bellows-shaped bag having a valve assembly attached to the top, and an elastic means for contracting the bag. has been done.

Note that the elastic means is composed of a compression spring and an outer container, or a tension spring or the like.

[Function] In the present invention, when the valve is opened, the bellows-shaped bag contracts in the axial direction due to the urging force of the elastic means, thereby pushing out the contents filled in the bag.

In the present invention, an elastic means such as a spring is used to push out the contents, and no gas is used, so that the contents do not change in quality. Further, there is no need to use a pressure container.

[Example code] Next, the present invention will be explained in detail.

Figure 1 shows an extrusion container (A) according to an embodiment of the present invention.
FIG. 2 is a vertical cross-sectional perspective view of an extruded container (B) according to another embodiment of the present invention, and FIG. 3 is a vertical cross-sectional perspective view of an extruded container (C) according to yet another embodiment of the present invention. FIG.

In Figure 1, (1) is a bag, (2) is an outer container, and (3) is a bag.
is a compression spring. The bag (1) is a bottomed cylindrical container made of a single-layer or multi-layer material of polyethylene, polyester, polypropylene, nylon, or other synthetic resin, and has a bellows (4) formed on its body. This bag (1) can be contracted in the axial direction due to the bellows (4). The outer container (2) is a cylindrical container with a bottom similar to a typical aerosol container. The upper end of the outer container (2) is closed by a head (9) and a mounting cap (6). The bag (1) is stored inside the outer container (2), and the upper end of the bag (1) (7) is mounting kina.Whelk (6
) is collinear with the head (5).

The compression means in this embodiment is composed of an outer container (2) and a compression spring (3). That is, a compression spring (3) is interposed between the bottom (8) of the bag (1) and the bottom (9) of the outer container (2).
The elastic force of 3) always urges the bag (1) in the direction of contraction.

A valve assembly (old) is attached to the top of the bag (1) with a mounting cap. This valve assembly (+11 is a known valve that opens when the stem (+21) is pushed in.

The inside of the bag (1) can be filled with various contents. Typical contents are illustrated below.

High viscosity contents include gel hair conditioners, creams,
Examples include grease and mayonnaise. Examples of low-viscosity contents include lotions, hair sprays, shampoos, and conditioners. Note that these are examples, and the contents that can be filled are not limited to these.

A commonly used push button may be attached to the stem (12+) of the above-mentioned old valve assembly, or a spout or a known mechanical break-up nozzle may be attached.

In the embodiment shown in Fig. 1, when the push button or spout is pushed to open the valve 01), the inside of the bag (1) is communicated with the atmosphere, so the compressive force of the spring (3) compresses the bag (1). It will be done. This forces out the contents inside the bag (1).

Mechanical break-up type nozzles and push-button type nozzles are suitable for spraying low-viscosity contents, and spouts are suitable for discharging high-viscosity contents in the form of a twist or string.

Next, another embodiment (B) will be explained based on FIG. Components that are the same as those in the embodiment shown in FIG. 1 are designated by the same reference numerals and their explanations will be omitted.

The body of the bag Oe is formed into a bellows having a continuous spiral opening. A spring 081 constituting a pressure means is fitted on the entire surface.

This spring 08 is a tension spring and always urges the bag to contract. Note that it is preferable to make the body of the bag OQ tapered so that it becomes thinner toward the bottom, since the bag 08 will shrink smaller when it contracts.

Also in this embodiment, the contents filled in the bag 08 can be pushed out by the biasing force of the spring 3. Note that the use of a push-button nozzle, a mechanical break-up nozzle, or a spout attached to the stem 02) of the valve assembly (II), and the types of contents that can be filled are also similar to those of the previous embodiment. Same as Ai.

Another embodiment (C) will be explained based on FIG. Components that are the same as those in the embodiment shown in FIG. 2 are designated by the same reference numerals.

In this example, no outer container is used. The structure in which the tension spring Oa is wound around the groove side of the bag Oe is the same as that of the embodiment shown in FIG.

A cylindrical portion C211 is formed at the upper end of the bag ae, and a male threaded surface is carved on the outer periphery of the cylindrical portion C211. On the other hand, a cylindrical portion is integrally formed in the housing of the valve assembly OD, and a female thread Q4 is carved on the inner periphery of the cylindrical portion. A valve assembly 01) is attached to the top of the bag (T) by screwing the male screw (2) into the female screw Q4.

Also in this embodiment, the contents filled in the bag (G) can be pushed out by the bias of the spring a. Furthermore, the use of a push-button nozzle, a mechanical break-up nozzle, or a spout attached to the stem 02) of the valve assembly 01), and the types of contents that can be filled are also similar to those in the above embodiment. It is similar to

In this embodiment, a grip of an appropriate shape may be attached to extend from the cylindrical portion (21) or the cylindrical portion so that it can be easily grasped by hand.

Although the present invention has been described above with reference to various embodiments, the present invention is not limited to these embodiments, and various modifications can be made without departing from the spirit thereof.

[Effects of the Invention] In the present invention, since gas is not used as a propellant, the contents are not altered. Furthermore, since the outer container does not need to be a pressure-resistant container, the container can be lightweight and low cost.

[Brief explanation of the drawing]

Figure 1 shows an extrusion container (A) according to an embodiment of the present invention.
FIG. 2 is a vertical cross-sectional perspective view of an extruded container (B) according to another embodiment of the present invention, and FIG. 3 is a vertical cross-sectional perspective view of an extruded container <C> according to still another embodiment of the present invention. FIG. (Main symbols in the drawing) (1), Oe two bags (2): outer container (3), OF! J spring (4): bellows 01): valve assembly 0 crab groove Fig. 1 Fig. 2 Fig. 3

Claims (1)

[Scope of Claims] 1. An extruded container consisting of an axially deflated bellows-shaped bag having a valve assembly attached to the top, and elastic means for deflating the bag. 2. The extruded container according to claim 1, wherein the elastic means comprises a compression spring and an outer container, and the compression spring is interposed between the bottom end of the bag and the bottom of the outer container. 3. The push-out container according to claim 1, wherein the elastic means is a tension spring wound around a groove of a bellows-shaped inner bag.