JP4596139B2 - Squeeze container - Google Patents

Description

  The present invention relates to a squeeze container.

  The squeeze container that discharges liquid from the discharge port by tilting or inverting the container so that the discharge port faces downward and pressing the flexible body portion of the container can be used for various liquid agents, for example, the hand. It is used as a container for alcohol-based disinfectants and eye drops for disinfecting wounds and wounds.

  However, in such a squeeze container, not only when the container is pressed, but also when the container is tilted but not yet pressed, or immediately after the liquid is discharged by the pressure, etc. Prone to occur.

  As a method for preventing dripping, the diameter of the discharge port is narrowed, the container is double-contained and a check valve is provided (Patent Document 1), and a cylindrical squeeze regulating member is suspended inside the container. There is a narrowing part for preventing excessive deformation in the body part of the container (Patent Document 2).

Japanese Patent Laid-Open No. 2003-321038 JP 2003-226377 A

  However, among conventional techniques for preventing dripping, if the diameter of the discharge port is narrowed, it becomes difficult to discharge a sufficient amount of liquid with a single squeeze. Moreover, the method of making a container into a double container and providing a check valve (Patent Document 1) or providing a squeeze regulating member in the container (Patent Document 2) increases the manufacturing cost of the squeeze container.

  On the other hand, an object of the present invention is to provide a squeeze container that can prevent dripping at a low cost by a completely new method.

  The present invention attaches a liquid guide path to the discharge port of a squeeze container, and bends the liquid guide path so that the liquid inlet of the liquid guide path is positioned in the vicinity of the discharge port. It has been found that unnecessary dripping can be prevented when tilted or inverted.

  That is, the present invention is a squeeze container having a flexible container body, a discharge port formed in the upper part of the container, and a liquid guide path communicating with the discharge port, and the liquid inlet of the liquid guide path is the discharge port. There is provided a squeeze container which is located in the vicinity and in which at least a part of the liquid guiding path is located on the opposite side of the discharge port with the liquid inflow port interposed therebetween.

  In the squeeze container according to the present invention, the liquid inlet such as a dip tube communicating with the discharge port is curved in a U shape in the container, so that the liquid inlet on the side opposite to the discharge port side end of the liquid guide channel discharges. It is located in the vicinity of the outlet, and at least a part of the liquid guiding path is located on the opposite side of the discharge port with the liquid inflow port interposed therebetween.

  Here, when the squeeze container is tilted or inverted so that the discharge port faces downward, the liquid level is pushed up from the liquid inlet to the liquid guide path by the load of the content liquid. Due to the negative pressure, the content liquid is held in the liquid guide path without reaching the discharge port beyond the portion farthest from the discharge port of the liquid guide path, that is, the U-shaped bent part. As a result, the content liquid remains in the squeeze container and is not discharged from the discharge port unless the container body is pressed. Therefore, according to this squeeze container, unnecessary dripping that occurs when the container body is not pressed can be prevented.

  Hereinafter, the present invention will be specifically described with reference to the drawings.

  FIG. 1A is a schematic cross-sectional view of the squeeze container 1 according to an embodiment of the present invention in an upright state, and FIGS. 1B to 1D are schematic cross-sectional views illustrating the operation of the squeeze container 1.

  The squeeze container 1 is a container filled with an alcohol-based disinfectant, eye drops, and other various drugs as the content liquid A, and has an equiflexible body, and a mouth 3 is formed on the top. The squeeze container 1 includes a resin container body 2, a cap 4 that is screwed onto the mouth 3 of the container body 2, and a dip tube 5 as a liquid guide path. A discharge port 6 is formed in the cap 4, and a dip tube mounting portion 7 for mounting the dip tube 5 is formed inside the cap on the side opposite to the discharge port 6. The cap 4 is covered with a lid 8 that covers the discharge port 6 in a detachable manner.

  The dip tube 5 provided inside the squeeze container 1 is made of a flexible tube, one end is fitted into the dip tube mounting portion 7, and the liquid inlet 5 a at the other end is near the discharge port 6 inside the squeeze container 1. The liquid inflow port 5a side end is fixed to the discharge port side end by the bundling member 9 so as to be positioned in the U-shape. With this configuration, most of the dip tube 5 serving as a liquid guiding path is located on the opposite side of the discharge port 6 with the liquid inflow port 5a interposed therebetween. In the present invention, the fact that the liquid inlet 5a of the dip tube 5 is located in the vicinity of the discharge outlet 6 means that the squeeze container 1 is upright and the container is fully filled with the content liquid A with a predetermined head space. This means that the liquid inlet 5a of the dip tube 5 is positioned on the liquid surface.

  If the inner diameter of the dip tube 5 is too small, it becomes difficult to discharge a sufficient amount of the content liquid A by pressing the container body 2, and therefore it is preferably 1 mm or more. In the present embodiment, a dip tube having an outer diameter of 3 mm and an inner diameter of 2 mm is selected based on the size of the discharge port 6 and the like.

  The length of the dip tube 5 is such that when the squeeze container 1 is set upright with the liquid inlet 5a positioned in the vicinity of the discharge port 6, the dip tube 5 is bent in a U shape. It is preferable that the lower end 5b has a length located near the bottom surface of the container main body 2. Thereby, when the container body 2 is pressed in a state where the squeeze container 1 is inclined or inverted so that the discharge port 6 faces downward, the content liquid can be discharged from the discharge port 6. It is possible to prevent unnecessary liquid dripping when 2 is not pressed.

  The squeeze container 1 is used as follows when the content liquid A is discharged. First, as shown in FIG. 1B, the lid 8 is removed from the squeeze container 1 that has been upright as shown in FIG. 1A, and the squeeze container 1 is tilted or inverted so that the discharge port 6 faces downward. At this time, an air layer is held in the dip tube 5. Even if the container body 2 is not pressed, the content liquid A in the squeeze container 1 has a force that causes the content liquid A to flow out from the discharge port 6 through the dip tube 5 due to the load. The air layer is held in the dip tube 5 due to the negative pressure in the squeeze container 1 generated by the liquid level being pushed up within the container 5, the contents liquid A is held in the container, and the contents liquid A is discharged unnecessarily. There is nothing.

  Next, as shown by an arrow in FIG. 1C, the container body 2 is pressed. Then, the internal pressure in the squeeze container 1 increases, and the content liquid A is discharged from the discharge port 6 through the dip tube 5.

  When the pressure is released, the container body 2 returns to its original shape as shown in FIG. 1D, the squeeze container 1 is under negative pressure, air enters the container from the discharge port 6, and the dip tube as in FIG. 1B. 5 is in a state where an air layer is held. Therefore, the inner solution A is not unnecessarily discharged even after the pressing is released. When this is erect, the state is the same as in FIG. 1A except that the content liquid A is reduced by the amount of discharge. Therefore, thereafter, by repeating the operations of tilting or inverting the squeeze container 1, pressing, releasing the pressure, and erecting the container, the liquid content in the container is not generated when the container main body 2 is not pressed without causing unnecessary dripping. The content liquid A can be stably discharged until A disappears.

  The present invention can take various forms in addition to those shown in FIGS. 1A to 1D. For example, the dip tube 5 may be curved in a hairpin shape, a triangular shape or the like in addition to the U shape. The dip tube 5 is not necessarily a tube having the same diameter from the end on the discharge port 6 side to the liquid inflow port 5a side, and the tube diameter may change midway. Furthermore, the dip tube 5 may be formed of a rigid tubular member without necessarily forming it from a flexible tube as long as the liquid inlet 5a is positioned in the vicinity of the discharge port 6. Further, it is not necessary to form the liquid guiding path for guiding the liquid A from the container body 1 to the discharge port 6 with a single continuous tube, and an air chamber is provided between the discharge port 6 side end and the liquid inlet 5a. Etc. may be provided.

  Even if the lower end 5b of the dip tube 5 does not reach the bottom of the container body 2, the squeeze container 1 is inclined or inverted so that the content liquid A is held in the container by negative pressure. In addition, it is only necessary to ensure a sufficient length for the liquid level to rise in the dip tube 5.

  The squeeze container of the present invention is useful as a container for various liquid agents, particularly as a low-viscosity liquid squeeze container such as an alcohol-based disinfectant that is liable to spill during squeeze.

It is typical sectional drawing of an upright state of a squeeze container. It is typical sectional drawing of the use condition of a squeeze container. It is typical sectional drawing of the use condition of a squeeze container. It is typical sectional drawing of the use condition of a squeeze container.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Squeeze container 2 Container main body 3 Mouth part 4 Cap 5 Dip tube 5a Dip tube liquid inflow port 5b Dip tube lower end 6 Discharge port 7 Dip tube attaching part 8 Lid 9 Binding member A Contents liquid

Claims (3)

A squeeze container comprising a flexible container body, a discharge port formed in an upper portion of the container, and a liquid guide path communicating with the discharge port, the liquid guide path is made of a flexible tube, and the flexible tube one end, and fitted into the dip tube mounting portion formed on the side opposite to the discharge port of the container top, the liquid flow of the flexible tube with the liquid inlet of the flexible tube is located in the discharge opening neighborhood A squeeze container having an inlet side end fixed to a discharge port side end of a flexible tube by a binding member .   The squeeze container according to claim 1, wherein the liquid guide path is formed of a U-shaped flexible tube.   The squeeze container according to claim 2, wherein the lower end of the U-shaped flexible tube is positioned near the bottom surface of the container body when the container is erected.

Images