JPH03256873A - Fluid extruding container - Google Patents

Abstract

PURPOSE:To make it possible to let a fluid spout automatically by pressure as long as a valve is opened by forming a container by a body with spring properties equipped with restoring force in the fluid compressing direction in the body. CONSTITUTION:For a container which is equipped with a valve 1 with a pressing/returning operatable nozzle, at the top end, and of which body 2 is stretchable, the body 2 consists of a synthetic resin supporting rib 3, which is spirally wound so that the supporting rib 3 can have energizing force in the compressing direction, and an outer skin 4 of a flexible synthetic resin thin film, which is integrally formed with this supporting rib 3 and deflects into inward pleats between respective straps of this supporting rib 3 when the supporting rib 3 is under a compressed condition. When a fluid is injection-filled in the body 2 by a pressure filling device through the valve 1, the supporting rib 3 is forcibly stretched, resisting to the compressing force by this filling pressure. Therefore, when the valve 1 is opened, the fluid is extruded by the compressing force of the body 2, and spouting force for the fluid is always maintained.

Description

[Detailed description of the invention] [Industrial application field] The present invention provides a fluid dispensing container with a retractable body.

[Prior Art] This type of conventional fluid extrusion container with an expandable body compresses the body by pressing the upper end of the container with the palm of your hand, and the pressure inside the body generated by this compression pushes out the fluid. are known.

[Problem to be Solved by the Invention, Ill] The conventional container described above is complicated to operate because the body must be compressed by pushing force by hand, and when the liquid decreases, the amount of compression (stroke) must be reduced. If the size is not large, there is a problem that fluid cannot be discharged.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a fluid extrusion container that does not require the conventional manual compression operation of the body and can automatically eject fluid under pressure as long as the valve is closed. be.

[Means for Solving the Problems] The structure of the present invention for achieving the above object includes a container that is equipped with a valve that can be opened and closed and whose body is extendable and retractable.
The gist of the present invention is a fluid extrusion container characterized in that the body is formed of a spring body having a restoring force in the fluid compression direction so as to always generate discharge pressure in the fluid within the body.

[Example] In a container which is equipped with a valve 1 with a nozzle that can be pressed down and returned to its upper end, and whose body 2 is expandable and retractable, the body 2 is
is integrally molded with a support bone 3 made of synthetic resin wound into a spiral cylinder so as to have a biasing force in the pressure line direction, and is integrally formed with the support bone 3 in a compressed state. The outer skin 4 is made of a thin film made of soft synthetic resin that bends inwardly between each strip.

In this example, the support bone 3 and outer skin 4 are integrally molded from synthetic resin, but only the support bone 3 is formed from a metal wire, and the outer skin 4 made of synthetic resin is bonded to this metal wire. Of course, you can do it as well.

[Description of operation] When the inside of the body 2 constituting the container is empty, the body 2
is contracting as shown in the imaginary line in Fig. 1 due to the compressive force of the supporting bone 3, and therefore, in this state, the fluid is pumped into the valve l by the pressure filling device.
The support bones 3 are forcibly stretched against the compressive force by the filling pressure, and therefore, in this stretched state, a compressive force is accumulated in the body 2. The fluid within the body is compressed to a discharge pressure.

When the body 2 is in the retracted state shown by the solid line in FIG. 1, that is, in the fluid compressed state, when the ζ valve 1 is opened as shown in FIG.
The compressive force of the body 2 pushes the fluid out through the valve 1, and as the fluid decreases, the body 2 sequentially contracts, but the contraction force is such that the fluid discharge pressure is always maintained regardless of the decrease in fluid. It acts as a compressor.

[Effects of the Invention] As described above, according to the present invention, the body itself has a fluid compression function, so that once the valve is opened, the body will automatically compress and push out the fluid. This eliminates the need for manual compression of the body, making it easier to push out the fluid.

Furthermore, even if the fluid in the body decreases, the amount of compression of the body changes as the fluid decreases, so it is possible to constantly and stably expel the fluid without reducing the pushing force necessary for discharging the fluid. It has excellent features that could not be expected in conventional extruded containers of this type.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional front view of the container, and FIG. 2 is a longitudinal sectional front view showing the fluid being pushed out. 1... Valve, 2... Body, 3... Support bone, 4...
outer skin. Patent application Yoshio Sano, agent of Jin Nitto Seiki Co., Ltd. Figure 1 Figure ↓

Claims (1)

[Scope of Claims] A container equipped with a valve that can be opened and closed and whose body is extendable and retractable, wherein the body is provided with a restoring force in the fluid compression direction so as to constantly generate discharge pressure in the fluid within the body. A fluid extrusion container characterized in that it is formed of a spring body.