JPS6341337Y2 - - Google Patents

Description

[Detailed explanation of the idea] "Industrial application field" This proposal relates to a two-color tube.

``Problems to be solved by conventional techniques and ideas'' There is a container that is formed in such a way that by squeezing the upper and lower container bodies, the contents in both the upper and lower container bodies can be pushed out at the same time. However, this container had the disadvantage that the output ratio during extrusion varied unless both the upper and lower container bodies were squeezed with the same force. Although such a drawback can be eliminated by using a double-layered container body, such as an inner and outer container, new disadvantages arise. In other words, in the case of a double-layered container, the degree of deformation of the inner container body when the contents are pushed out is greater than that of the outer container body, and its elastic restoring force is also greater. easy to inhale. Furthermore, when the inner container body takes in outside air and restores its elasticity, the outer container body is pushed outward through the contents inside the container body, so even if the elastic restoring force of the outer container body is small, the inner container Due to the force exerted by the body, outside air tends to flow into the outer container body.
Furthermore, there is a drawback that when outside air flows into the container body, the output ratio during extrusion varies.

The present invention aims to eliminate such drawbacks and provide a useful container.

"Means for solving the problem" Synthetic resin outer tube 1 having a mouth part 11
an inner tube 2 made of synthetic resin having a mouth 21 smaller than the mouth 11 and loosely inserted into the outer tube 1; and a cylindrical body 41 fitted into the mouth 11 of the outer tube 1. Inwardly, insert the lower end into the mouth part 2 of the inner tube 2.
A small-diameter cylinder 42 fitted into the inside of the cylinder 42 is arranged, and the intermediate part between the cylinder body 41 and the small-diameter cylinder 42 is connected together by a horizontal plate 43 in which a plurality of through holes 44 are bored. A discharge amount adjusting device 4 having a valve hole 45 consisting of an inward flange and a notch 40 formed in a part of the upper end of the small diameter cylinder 42, a discharge valve A formed inside the mouth 21 of the inner tube, and the above. Inner and outer hanging cylinders 46 and 47 that are slidably fitted to the inner periphery of the upper part of the cylinder 41 and the outer periphery of the upper part of the small diameter cylinder 42 are hung from the top wall 31, and a part of the inner hanging cylinder 46 is provided with: A notch 48 is formed to correspond to the notch 40 of the small diameter cylinder 42, and further,
A spout cap is provided with a spout 32 bored in the center of the top wall 31 and a stopper rod 49 that is removably fitted into a valve hole 45 in a small diameter cylinder 42 via an appropriate connecting means inside the spout. It consists of 3.

"Operation" When pushing out the contents, unscrew the outer cap 5, unscrew the spout cap 3, unscrew the stopper rod 49 from the valve hole 45 in the flow adjustment device 4, and open the notch of the small diameter cylinder 42. 40 and the notch 48 of the inner hanging tube 46, and the outer tube 1 is squeezed.

In this way, both the contents in the outer tube 1 and the contents in the inner tube 2 are pressurized, and the contents in the outer tube 1 are pressurized.
The contents are pushed out from the spout 32 of the spout cap 3 through the through holes 44 of the horizontal plate 43, the notch 48 of the inner hanging cylinder 46, and the notch 40 of the small diameter cylinder 42 in the discharge amount adjusting device 4. , Also, inner tube 2
The contents inside pass through the discharge valve A, and in the discharge amount adjusting device 4, the small diameter cylinder 42 and its valve hole 45
After that, it is pushed out from the spout 32 of the spout cap 3. In other words, the contents in the outer tube 1 and the contents in the inner tube 2 are extruded in a layered manner.

Furthermore, when the compression of the outer tube is released, the discharge valve A closes to prevent outside air from flowing into the inner tube.

"Example" In the figure, 1 is an outer tube, 2 is an inner tube loosely inserted into the outer tube, 3 is a spout cap screwed onto the mouth of the outer tube, and 4 is the mouth of the outer tube. A discharge adjustment device equipped inside the unit, 5 is an outer cap that is removably screwed onto the neck of the outer tube, and A is a discharge valve formed inside the mouth of the inner tube, and these are made of synthetic resin as appropriate. .

The outer tube 1 has a neck portion 12 having a threaded circumference at its upper end and a mouth portion 11 each having a smaller diameter.

The inner tube 2 has a neck part 22 and a mouth part 21 which are smaller in diameter than the neck part 12 and mouth part 11 and which are not threaded and have smaller diameters in sequence at the upper end part, and a valve is formed inside at the boundary between the neck part 22 and the mouth part 21. A seat 23 and a valve hole 24 are provided.

The output amount adjusting device 4 includes a small diameter cylinder 42 whose lower end is fitted into the opening 21 of the inner tube 2 inside a cylinder 41 which is fitted into the opening 11 of the outer tube 1,
A plurality of through holes 4 are formed in the lower portions of the cylinder body 41 and the small diameter cylinder 42.
A valve hole 45 consisting of an inward flange is provided halfway inside the small diameter cylinder 42, and a notch 40 is formed in a part of the upper end of the small diameter cylinder 42.

The discharge valve A has a valve body 25 seated on the valve seat 23.

The outer cap 5 is provided to be removably screwed into the neck portion 12 of the outer tube 1, and has inner and outer caps that are slidably fitted from the top wall 31 to the inner periphery of the upper part of the cylinder 41 and the outer periphery of the upper part of the small diameter cylinder 42. A notch 48 is formed in a part of the inner hanging cylinder 46 to correspond to the notch 40 of the small diameter cylinder 42, and the top wall 3
A spout 32 is bored in the center of the spout 1, and a stopper rod 49 that is removably fitted into the valve hole 45 in the small diameter cylinder 42 is vertically disposed inside the spout via an appropriate connecting means.

In addition, when storing contents of different colors in the outer tube 1 and the inner tube 2,
The lower ends of both tubes are opened in advance, and the contents are filled from the lower ends. After filling, the lower ends of both tubes are welded and closed at once.

"Effect of the invention" The present invention has the above-mentioned structure, and since the discharge valve A is formed inside the mouth part 21 of the inner tube, it is possible to prevent the outside air from flowing into the inner tube 2, and therefore, the outside air can be kept inside the inner tube 2. is inhaled and the inner tube elastically restores itself, so that the resilience of the outer tube 1 is not promoted and the outer tube 1 is prevented from being in a state where it is easy to inhale outside air, and therefore both the inner and outer tubes are This is very convenient because outside air will not flow into the interior and the output ratio during extrusion will not fluctuate.

[Brief explanation of drawings]

The drawing is a longitudinal side view showing this embodiment. 1...outer cap, 2...inner cap, 3...
Pour cap, 4...output adjustment device, 5...outer cap, A...discharge valve.

Claims (1)

[Scope of utility model registration request] Synthetic resin outer tube 1 having a mouth portion 11
an inner tube 2 made of synthetic resin having a mouth 21 smaller than the mouth 11 and loosely inserted into the outer tube 1; and a cylindrical body 41 fitted into the mouth 11 of the outer tube 1. Inwardly, insert the lower end into the mouth part 2 of the inner tube 2.
A small-diameter cylinder 42 fitted into the inside of the cylinder 42 is arranged, and the intermediate part between the cylinder body 41 and the small-diameter cylinder 42 is connected together by a horizontal plate 43 in which a plurality of through holes 44 are bored. A discharge amount adjusting device 4 having a valve hole 45 consisting of an inward flange and a notch 40 formed in a part of the upper end of the small diameter cylinder 42, a discharge valve A formed inside the mouth 21 of the inner tube, and the above. Inner and outer hanging cylinders 46 and 47 that are slidably fitted to the inner periphery of the upper part of the cylinder 41 and the outer periphery of the upper part of the small diameter cylinder 42 are hung from the top wall 31, and a part of the inner hanging cylinder 46 is provided with: A notch 48 is formed to correspond to the notch 40 of the small diameter cylinder 42, and further,
A spout cap is provided with a spout 32 bored in the center of the top wall 31 and a stopper rod 49 that is removably fitted into a valve hole 45 in a small diameter cylinder 42 via an appropriate connecting means inside the spout. A two-color tube consisting of 3.