JP2007099302A - Blow-molded thin-walled container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a blow-molded thin-walled container to be unsealed with a relatively small force. <P>SOLUTION: In the blow-molded thin-walled container having a thin-walled barrel 1 which reduces the volume of a filling space as the content is spouted, a spouting unit 2 having a passage 2a to be communicated with the filling space for discharging the content in the filling space by opening the passage 2a by cutting and separating a plug 4 along the fracture scheduled line 3, is provided on an upper end corner part of the barrel 1. An evacuation replacement passage S is separately formed in an extending manner along the passage 2a in the spouting unit 2, and a bulkhead 5 for merging the passage 2a with the evacuation replacement passage S before reaching the fracture scheduled line 3 is provided. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a blow-molded thin-walled container capable of reducing the filling space according to the contents being poured out, and intends to open the container with a smaller force.

In the field of containers for shampoos, rinses, liquid soaps, cosmetics, etc., thin-walled containers have been proposed that are formed into the desired shape by blow molding synthetic resin from the viewpoint of effective use of resources and reduction of waste. (For example, refer to Patent Document 1).
JP 2005-22755 A

  This type of conventional container has a notch and a planned break line provided in advance in the pouring part, and it has been customary to open the container by cutting and separating the stopper along it. In a container provided with a passage, a relatively large force is required because when the container is opened, the partition wall forming the air replacement passage must be cut and separated at the same time.

  The subject of this invention exists in the place which proposes the novel blow molding thin wall container which can reduce the force required when opening a container as much as possible.

The present invention is a blow-molded thin-walled container provided with a thin-walled body that enables volume reduction of the filling space according to the contents being poured out,
A pouring part which has a passage connected to the filling space at the upper end corner of the trunk and opens the passage by cutting and separating the plug body along the planned breaking line to discharge the contents in the filling space. Provided,
A partition that extends along the passage and separately forms an air replacement passage and joins the passage and the air replacement passage before reaching the planned fracture line is provided in the passage. It is a blow molded thin container.

  Since the installation area of the partition that forms the air replacement passage is shifted from the planned fracture line, it is not necessary to cut and separate the partition when opening the container, and the opening force is reduced accordingly. It becomes.

Hereinafter, the present invention will be described more specifically with reference to the drawings.
FIG. 1 is a view showing an embodiment of a blow molded thin-walled container according to the present invention, and FIG. 2 is an enlarged cross-sectional view showing the main part of FIG. In the figure, reference numeral 1 denotes a body of a container that defines a filling space for contents. The body 1 has a small thickness, so that the filling space can be reduced according to the degree of the contents poured out.

  Reference numeral 2 denotes a pouring portion provided at the upper end corner of the body 1. This extraction part 2 has a passage 2a connected to the filling space. 3 is a break line formed by cutting or the like, 4 is a plug body that opens the passage 2a by tearing along the break line 3, and 5 is an air replacement passage S that extends along the cut-out portion 2 along the line 2a. Is a partition wall formed separately. The bulkhead 5 is shortened by t at the end so that the passage 2a and the air replacement passage S merge before reaching the planned fracture line 3.

  When a force is applied to the plug body 4 by placing a finger on the knob 6 formed in advance in the dispensing section 2, the plug body 4 is cut along the planned fracture line 3 as shown in FIG. Since no force acts on the partition wall 5, the force required to separate the stopper 4 can be smaller than that of a conventional container. In addition, it is good also as a structure which cut | disconnects and isolate | separates the plug body 4 using tools, such as a hook, without providing the knob | pick part 6. FIG.

  Only the portion of the planned fracture line 3 can be made thin, whereby the force required for cutting and separating the plug 4 can be further reduced. Further, as another measure for further reducing the force required for cutting and separating the plug body 4, a recess (V-shaped groove) is provided so that the bottom of the planned fracture line 3 forms an acute angle, or the fracture The part of the planned line 3 may be made of a different material.

  The contents can be filled with liquids, fluids, oils and fats, liquids containing surfactants and foods (eg fluids such as jelly, liquids such as soups), In order to avoid scattering of the contents at the time of dispensing, it is particularly preferable to fill the contents having a viscosity of about 1 Pa · s to 100 Pa · s.

  It is possible to provide a blow-molded thin-walled container that can be opened with a small force to separate the stopper.

It is the figure which showed embodiment of the blow molding thin wall container according to this invention. It is sectional drawing which expanded and showed the principal part of the container shown in FIG. It is the figure which showed the state which cut | disconnected the plug body in the container shown in FIG.

Explanation of symbols

1 Body 2 Extraction part
2a Passage 3 Line to be broken 4 Plug body 5 Bulkhead 6 Knob S S Air replacement passage

Claims (1)

A blow-molded thin-walled container with a thin-walled body that enables volume reduction of the filling space according to the contents being poured out,
A pouring part which has a passage connected to the filling space at the upper end corner of the trunk and opens the passage by cutting and separating the plug body along the planned breaking line to discharge the contents in the filling space. Provided,
A partition that extends along the passage and separately forms an air replacement passage and joins the passage and the air replacement passage before reaching the planned fracture line is provided in the passage. Blow molded thin container.

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