JPH0735363U - Liquid storage bag - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a highly reliable liquid storage bag that can reliably connect a liquid spout and a liquid spout tube with one touch. [Structure] A liquid spout 3 is composed of a spout main body 4 airtightly fixed to a bag main body 1 and a cap main body 5 which is attachable to and detachable from the spout main body 4. A tapered connection inner cylinder 8 into which the end of the output tube 16 is fitted, and a connection inner cylinder 8 that is provided outside the connection inner cylinder 8 via an annular recess 9 and surrounds the connection inner cylinder 8 and engages with the open end. A connecting outer cylinder 10 having a convex portion 11 is provided. In addition, the end portion of the liquid pouring tube 16 is inserted into the cap body 5 and fitted to the outside of the connecting inner cylinder 8 so that the liquid pouring tube 16 is connected to the connecting inner cylinder 8. There is provided a tube insertion port 12 to be sandwiched and an annular hole 17 having an engaging concave portion 19 which is fitted to the connecting outer cylinder 10 and elastically engages with the engaging convex portion 11.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a liquid containing bag for containing a liquid such as a soft drink.

[0002]

[Prior art]

 A commercial liquid storage bag for storing a large amount of liquid such as soft drink has a bag main body made of a flexible film and provided with a liquid inlet and a liquid outlet. Then, when the bag body is filled with the liquid from the liquid injection port and the liquid in the bag body is poured out, a liquid pouring tube is connected to the liquid pouring port, and a desired amount is supplied from the liquid pouring tube. It can be poured out.

In addition, a liquid containing bag to be loaded into an automatic dispensing device such as a dispenser has a predetermined length at a liquid dispensing port so that the contents can be dispensed by loading the liquid containing bag into the device. Some are equipped with a liquid pouring tube.

In any case, it is necessary to make a soft drink or the like in a sterile state so that it can be completely shielded from the outside air and stored while maintaining the taste of the product. The material of the bag body is a polyethylene resin film. The liquid injection port and the liquid injection port are also formed of polyethylene resin molded products. A liquid inlet and a liquid outlet are welded to the bag body, and a rubber liquid outlet tube is usually connected to the liquid outlet.

That is, for example, as disclosed in Japanese Utility Model Laid-Open No. 5-49665, a spout for connection as a liquid spout which is fixed to a bag body by welding is integrally provided with a tubular portion having a convex portion on the outer periphery. Fit the end of an elastic tube as a liquid pouring tube into the tube, and tighten the end of the elastic tube with a tube fixing ring that has an inner diameter slightly larger than the convex part to prevent the elastic tube from coming off. There is.

[0006]

[Problems to be solved by the device]

 However, in the conventional liquid storage bag, the liquid spout is fixed to the bag body by welding and is completely shut off.However, the tube is fixed to the tube part of the spout for connection as the liquid spout. Since the structure is simply provided with a ring and the end of the elastic tube is tightened, there is a problem in that the connection between the tube and the elastic tube lacks reliability.

This invention was made in view of the above circumstances, and its purpose is to connect the liquid spout and the liquid spout tube securely with one touch, and to keep the contents in a sterile state. , It is to provide a liquid containing bag that can be stored while keeping the taste of the product completely shielded from the outside air.

[0008]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention has a bag main body for containing a liquid, a liquid spout provided in a part of the bag main body and made of a synthetic resin material for pouring out the liquid inside, and this liquid pouring. In a liquid containing bag consisting of a liquid spouting tube connected to an outlet, the liquid spout is composed of a spout body that is airtightly fixed to the bag body, and a cap body that is removable from the spout body. And a tapered connection inner cylinder into which the end of the liquid pouring tube is fitted, and a connection inner cylinder provided outside the connection inner cylinder via an annular recess. A connecting outer cylinder is provided which is surrounded and has an engaging projection at the opening end, and the end of the liquid pouring tube is inserted into the cap body and fitted to the outside of the connecting inner cylinder. , Inner tube for connecting the liquid pouring tube In the provision and the tube insertion port for clamping and an annular bore having an engagement recess to be elastically engaged with the engagement projection as well as fitted to the connecting barrel between.

[0009]

[Action]

 Insert the end of the liquid pouring tube into the tube insertion port of the cap body, and fit the end of the liquid pouring tube into the connection inner cylinder. In this state, when the cap body is pushed into the connection outer cylinder of the spout body, the end of the liquid pouring tube is clamped between the outer peripheral surface of the connection inner cylinder and the inner peripheral surface of the tube insertion port, and at the same time. The annular hole of the cap body of the connecting outer cylinder fits into each other so that the engaging projection and the engaging recess are elastically engaged.

[0010]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a sectional view showing the liquid spout in an exploded manner, FIG. 2 is a sectional view showing a part of the connecting structure of the spout body and the cap body, and FIG. 3 is a perspective view of the liquid injection port and the liquid spout. It is a figure. As shown in FIG. 3, the bag body 1 is made of a flexible polyethylene resin film, and a liquid inlet 2 and a liquid outlet 3 are fixed to a part of the bag body 1. The liquid injection port 2 and the liquid injection port 3 are formed of a polyethylene resin molded product.

The liquid spout 3 which is the main part of the present invention will be described. As shown in FIG. 1, the liquid spout 3 includes a spout body 4 and a cap body 5 which is detachable from the spout body 4. It consists of A flange 6 is integrally provided at the base of the spout body 4, the flange 6 is welded to the bag body 1, and the spout body 4 is airtightly fixed to the bag body 1.

The spout body 4 is formed in a cylindrical shape, and a partition wall 7 is provided at a substantially middle portion in the height direction thereof, and a tapered inner connecting tube 8 is provided at the center of the partition wall 7. This penetrates the partition wall 7 and communicates with the bag body 1. A connection outer cylinder 10 is integrally provided outside the connection inner cylinder 8 so as to surround the connection inner cylinder 8 via an annular recess 9.

The opening end of the connecting outer cylinder 10 is lower than the connecting inner cylinder 8 and an engaging convex portion 11 is integrally provided on the outer circumference of the opening end. An inclined surface 11a having a downward slope is formed.

The cap body 5 is formed in a disc shape, and a tube insertion port 12 to be fitted into the connection inner cylinder 8 is provided in a central portion. The tube insertion port 12 has a small diameter on the upper side and a large diameter on the lower side, and a disconnection portion 13 is formed at the boundary portion. Further, a taper portion 14 is formed on the inner peripheral surface of the small diameter portion on the upper side of the tube insertion port 12 so as to expand upward, and the portion having the smallest diameter, that is, the narrowed portion 15 is located outside the liquid pouring tube 16. It is formed to have substantially the same diameter as the diameter.

An annular hole 17 that fits into the connecting outer cylinder 10 is provided on the outer peripheral portion of the lower surface of the cap body 5. An annular convex portion 18 having a mountain-shaped cross section is formed on the outer inner peripheral surface of the annular hole 17, and an engaging concave portion 19 that elastically engages with the engaging convex portion 11 is formed in a deep portion of the annular convex portion 18. It is provided.

Next, the operation of connecting the liquid spouting tube 16 to the liquid spouting port 3 fixed to the bag body 1 will be described. The tube insertion port of the cap body 5 removed from the spouting port body 4 will be described. The end portion of the liquid pouring tube 16 is inserted into 12. In this case, the narrowed portion 15 of the tube insertion port 12 is formed to have substantially the same diameter as the liquid pouring tube 16, so that the liquid pouring tube 16 is temporarily fixed to the cap body 5.

Then, the end portion of the liquid pouring tube 16 is fitted into the connection inner cylinder 8 of the spout main body 4. In this state, when the cap body 5 is pushed into the connection outer cylinder 10 of the spout body 4 with fingers, the end of the liquid pouring tube 16 gradually fits deeply into the large diameter portion of the tapered connection inner cylinder 8. To do.

Therefore, the end portion of the liquid pouring tube 16 is sandwiched between the outer peripheral surface of the connecting inner cylinder 8 and the narrowed portion 15 on the inner peripheral surface of the tube insertion opening 12, and at the same time, the connecting outer cylinder 10 is capped. The annular hole 17 of the main body 5 is fitted into the engaging convex portion 11 over the annular convex portion 18, and the engaging concave portion 19 is elastically engaged.

When the cap main body 5 is elastically engaged with the spout main body 4 in this manner, the cap main body 5 is firmly coupled so as not to be easily detached, and the liquid pouring tube 16 is of course connected to the connecting inner cylinder 8. It is connected airtightly to and can be poured without leaking liquid.

[0021]

[Effect of device]

 As described above, according to the present invention, the end of the liquid pouring tube is inserted into the tube insertion port of the cap body, and the end of the liquid pouring tube is used as the connection inner cylinder of the spout main body. When fitted and the cap body is pushed into the connection outer cylinder of the spout body, the end of the liquid pouring tube is clamped between the outer peripheral surface of the connection inner cylinder and the inner peripheral surface of the tube insertion port, and at the same time. The annular hole of the cap body of the connecting outer cylinder is fitted to elastically engage the engaging convex portion and the engaging concave portion.

Therefore, the liquid spout and the liquid spout tube can be securely connected with one touch, and the contents can be stored in a sterile state while completely shutting off the outside air and maintaining the taste of the product. There is an effect that a high-quality liquid storage bag can be provided.

[Brief description of drawings]

FIG. 1 is an exploded cross-sectional view of a liquid spout according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a part of a connecting structure between the spout body and the cap body of the embodiment.

FIG. 3 is a perspective view of a liquid inlet and a liquid outlet of the same embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Bag body 3 ... Liquid spout 4 ... Spout body 5 ... Cap body 8 ... Connection inner cylinder 9 ... Annular recess 10 ... Connection outer cylinder 11 ... Engagement projection 12 ... Tube insertion port 16 ... Liquid spouting tube 17 ... Annular hole 19 ... Engagement recess

Claims (1)

[Scope of utility model registration request] 1. A bag body containing a liquid, a liquid spout provided in a part of the bag body and made of a synthetic resin material for pouring out the liquid inside, and a liquid spout connected to the liquid spout. In a liquid storage bag consisting of a tube for use, the liquid spout comprises a spout body airtightly fixed to the bag body, and a cap body detachable from the spout body, , A tapered connection inner cylinder into which the end of the liquid pouring tube is fitted, and a connection inner cylinder that is provided outside the connection inner cylinder via an annular recess and surrounds the connection inner cylinder and engages with the opening end. A connection outer cylinder having a portion, the cap body, the end portion of the liquid pouring tube is inserted and fitted to the outside of the connection inner cylinder, the liquid pouring tube as a connection inner cylinder Tube insertion port sandwiched between And a ring-shaped hole having an engaging concave portion that fits into the connecting outer cylinder and that elastically engages with the engaging convex portion.