JPS6023171A - Tube - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to tubes, and particularly to improvements in the internal structure of tubes.

In conventional tubes, the contents were squeezed out. However, as the content decreases, it moves from the rear of the tube to the front (the front here is the vicinity of the spout of the contents in the tube, and the rear is the opposite. Hereinafter, the front, The rear is defined as shown on the left.)
I had to squeeze out the contents, and the shape of the tube naturally deformed, making it difficult to hold. The purpose of the present invention is to
The aim is to eliminate these drawbacks of conventional tubes.

The contents and functions of the constituent elements of the present invention will be explained based on the drawings.

The hand pump 2 installed around the ejection pipe 8 uses an elastic body with a hollow center and a restoring force to pass air through the side surface of the tube body 3 and from the check valve 5 provided on the hand pump 2. Incorporate. This check valve 5 prevents air from flowing back from inside the hand pump 2 to the outside.

By manually pushing the hand pump 2, air passes through the air supply pipe 4 that is sandwiched between the tube body 3 and the internal tube 10, and the air passes through the air supply pipe 4 and the air inlet of the extensible rubber balloon 7. The rubber balloon 7 is fed into the rubber balloon 7 through a check valve 6. This check valve 6 prevents air from flowing backward from the rubber balloon 7 to the air supply pipe 4 and hand pump 2.

The injected air increases the volume of the rubber balloon 7 and the pressure inside the inner tube 10, causing the contents to pass through the funnel-shaped ejection pipe 8 connected to the inner tube 10 and through the ejection port 9. , gushing outward. The inner tube 10 is constantly filled with the contents and the air in the rubber balloon 7, and the tube body 3 does not deform as in the conventional case.

Here, the check valve 5 is a valve that allows air to pass in only one direction from the outside of the tube body 3 to the inside of the hand pump 2. This is a valve that allows air to pass into the rubber balloon 7 in only one direction.

The spout pipe 8 is attached with its funnel-shaped lower part (the one with the smaller mouth diameter) on the spout side and the opposite end on the interior tube 10.

Examples of the present invention will be described below.

The elastic body having a hollow center and having restoring force used in the Hiro hand pump 2 is made of rubber, polyethylene, or the like.

In addition to conventional materials, the tube body 3 is made of flexible or non-flexible metals, etc. However, the parts of the hand pump 2 that are subjected to pressure by hand from the surface are made of metal with resilience (for example, (laminated metal plate) etc.

The inner tube 10 encloses the rubber balloon 7 and its contents, and has a shape in which the air supply pipe 4 is sandwiched between the inner tube 10 and the tube body 3. One open end of the inner tube 10 is connected to a check valve 6, and the other end is connected to a check valve 6. is connected around the inside of the jet pipe 8 without any gaps. The material used is vinyl synthetic resin, etc., which is resistant to the contents.

The air supply pipe 4 is made of a tube such as plastic that does not deform under the pressure of the rubber balloon 7.

The check valves 5 and 6 are made of rubber.

The ejection pipe 8 is made of a material that does not deform under pressure when the hand pump 2 is used, such as aluminum, other alloys, metals, or plastic pipes.

Unlike conventional tubes, the tube of the present invention allows the desired contents to be removed from the spout by always pushing the front of the tube. In addition, even if the contents decrease,
There is no need to squeeze from the rear to the front as in the past. In addition, because the inside of the tube is filled with air, unlike conventional tubes, it can maintain the same shape before and after use. Furthermore, the material used for the tube body has a wider range of applications than conventional ones.

[Brief explanation of the drawing]

FIG. 1 is a sectional view, FIG. 2 is a plan view from the jet nozzle 9 side, and FIG. 3 is a sectional view taken in the direction of the arrow along the dashed-dotted line a.
FIG. 4 is a sectional view taken along the dashed line b in the direction of the arrow. 1...cap, 2...hand pump, 3...tube body,
4...Air supply pipe, 5...Check valve 6...Check valve, 7...Rubber balloon, 8...Blowout pipe 9...Blowout port, 10...Interior tube. Patent applicant Yoshiaki Takano

Claims (1)

[Claims] By pushing the hand pump (2), which uses an elastic body with restoring force, the air taken in from the check valve (5) is passed through the air supply pipe (4), and the air is pumped through the check valve ( 6) and into the rubber balloon (7). This tube increases the volume of the rubber balloon (7), pressurizes the inside of the tube body (3), and pushes out the contents from the spout (9).