JP2004244026A - Pouch with nozzle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pouch with a nozzle capable of completely using a liquid content in the pouch. <P>SOLUTION: A nozzle 2 comprises an elastic pipe 21, a discharge part 22 and a base part 23, and is fixed to a pouch 1 at the base part 23. The base part 23 has a cylindrical part 231 communicating with an elastic pipe 21 and an outwardly-directed flange part 232, and grooves 26 to communicate the inside of the cylindrical part 231 with an outer part of the outwardly-directed flange part 232 are formed in a back face 252 of the outwardly-directed flange part 232. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a pouch provided with a nozzle for once sucking out a liquid material in the pouch and then discharging the same. Examples of the liquid material include various liquid soaps. Such a pouch with a nozzle is generally used by being housed in a predetermined case with the tip of the nozzle being viewed outside.
[0002]
[Prior art]
FIG. 5 is an overall perspective view of a general pouch with a nozzle. The pouch 1 is usually a bag made of a plastic film. The nozzle 2 includes an elastic pipe 21, a discharge section 22 at a front end, and a base section 23 at a rear end. The nozzle 2 communicates with one surface 11 of the pouch 1 through the inside of the pouch 1 and is fixed at the base section 23. I have. The pouch 1 is filled with a liquid material such as a liquid soap.
[0003]
FIG. 6 is a partial longitudinal sectional view showing a structure for fixing the base 23 to the one surface 11 of the pouch 1. The base portion 23 is formed by thermally bonding the surface 251 of the outward flange portion 232 on the cylindrical portion 231 side to the inner surface 111 of the one surface 11 in a state where the cylindrical portion 231 is made to penetrate the one surface 11 of the pouch 1 from the inner surface 111 side. The pouch 1 is fixed to one surface 11.
[0004]
[Patent Document 1]
JP-A-8-332157
[Problems to be solved by the invention]
In the pouch with a nozzle having the above-described configuration, when the elastic pipe 21 is operated to suck out the liquid material in the pouch 1, the following problems may occur. That is, when the remaining amount of the liquid material in the pouch 1 decreases, the other surface 12 of the pouch 1 closes the cylindrical portion 231 as shown by a dashed line in FIG. 252, the liquid material in the pouch 1 is not sucked into the nozzle 2 and is therefore not discharged from the nozzle 2 and the liquid material in the pouch 1 cannot be used up. Had occurred.
[0006]
In particular, since the pouch with a nozzle having the above configuration is used in a state of being folded and housed in the case 5 as shown in FIGS. 7 to 9, the other surface 12 is easily approached to the outward flange portion 232, Failure was easy to occur. 7 shows a state in which the pouch with the nozzle is folded and stored in the housing 51, FIG. 8 shows a state in which the pouch with the nozzle is stored in the housing 51 and the nozzle 2 is fixed to the housing 51, and FIG. The state where the housing 51 accommodating the pouch is closed by the cover 52 is shown.
[0007]
An object of the present invention is to provide a pouch with a nozzle that can prevent the above-mentioned problems from occurring, that is, can use up the liquid material in the pouch.
[0008]
[Means for Solving the Problems]
According to a first aspect of the present invention, in a pouch provided with a nozzle for once sucking out and ejecting a liquid material in the pouch, the nozzle includes an elastic pipe, a discharge section at a front end, and a base section at a rear end. The base is fixed to the pouch at the base, and the base has a tubular portion communicating with the elastic pipe, and an outward flange provided at one end of the tubular portion. In a state penetrated from the inner surface side to one surface, by joining the surface of the cylindrical portion side of the outward flange portion to the inner surface of the pouch, it is fixed to the one surface of the pouch, and Is characterized in that a passage for communicating between the inside of the cylindrical portion and the outside of the outward flange portion is formed on the opposite back surface.
[0009]
According to a second aspect of the present invention, in the first aspect, the passage is a groove.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 1 is a perspective view showing a nozzle 2 of a pouch with a nozzle according to the present invention. The overall configuration of the pouch with a nozzle is the same as that shown in FIG. The nozzle 2 includes an elastic pipe 21, a discharge section 22 at a front end, and a base section 23 at a rear end.
[0011]
FIG. 2 is a longitudinal sectional view of the nozzle 2 fixed to the pouch 1. The base 23 includes a rear cylinder 233 composed of a cylinder 231 and an outward flange 232 provided at one end thereof, and a front cylinder 234 connected thereto. The front cylinder 234 includes a rear cylinder 235 that fits inside the cylinder 231 and a front cylinder 236 that fits the elastic pipe 21 outside. The base portion 23 heats the surface 251 of the outward flange portion 232 on the cylinder portion 231 side to the inner surface 111 of the one surface 11 in a state where the cylinder portion 231 of the rear cylinder 233 is penetrated through the one surface 11 of the pouch 1 from the inner surface 111 side. The pouch 1 is fixed to one surface 11 of the pouch 1 by bonding.
[0012]
The discharge unit 22 includes a front cylinder 222 having a discharge port 221, a rear cylinder 223 connected thereto, and a valve 224 held inside. The elastic pipe 21 is fitted on the rear cylinder 223. In the discharge section 22, the distal end portion 2241 of the valve 224 is made of an elastic material, and is opened only when pressure is applied in the direction of arrow A, and is kept closed in other cases.
[0013]
By operating the elastic pipe 21, the nozzle 2 configured as described above is configured to once discharge a predetermined amount of liquid material from the inside of the pouch 1 and then discharge the liquid material. That is, when the pressing force is released after pressing the elastic pipe 21 to make it in a contracted state, the elastic pipe 21 tries to return to its original state by the elastic force. An object is sucked into the nozzle 2. The sucked liquid is filled into the nozzle 2. Then, by pressing the elastic pipe 21 so as to narrow it, the liquid material filled in the nozzle 2 is discharged from the discharge port 221. As described above, by performing the pressing on the elastic pipe 21 and the opening thereof, the nozzle 2 once sucks out the liquid material in the pouch 1 and then discharges it.
[0014]
In the present invention, as shown in FIG. 1, a groove (passage) 26 is formed on the back surface 252 of the outward flange portion 232 in the base portion 23. As shown in FIG. 2, the groove 26 is formed so as to allow the inside of the cylindrical portion 231 to communicate with the outside of the outward flange portion 232.
[0015]
In the pouch with a nozzle having the above-described configuration, when the liquid material in the pouch 1 is sucked into the nozzle 2 by the operation of the elastic pipe 21, the other surface 12 of the pouch 1 moves outward as shown by a dashed line in FIG. 2. Even when approaching or contacting the back surface 252 of the orientation flange portion 232, the liquid material is reliably sucked into the nozzle 2 through the groove 26 as shown by the arrow. That is, in the pouch with a nozzle having the above configuration, the phenomenon that the other surface 12 is stuck to the back surface 252 and liquid material is not sucked into the nozzle 2 at all does not occur. Therefore, according to the pouch with a nozzle having the above configuration, the liquid material in the pouch 1 can be used up.
[0016]
Note that the passage for communicating the inside of the cylindrical portion 231 with the outside of the outward flange portion 232 is not limited to the four grooves 26 as described above. For example, one groove or a plurality of grooves other than four may be used. Further, the grooves need not be linear, but may be, for example, curved. Furthermore, as shown in FIG. 3, by forming the convex portion 271, the other portion 272 may constitute the above-described passage. Further, as shown in FIG. 4, by forming the projections 281 in a scattered shape, the other portions 282 may constitute the above-described passage.
[0017]
【The invention's effect】
According to the invention described in claim 1, when the liquid material in the pouch is sucked into the nozzle by the operation of the elastic pipe, even if the other surface of the pouch approaches or contacts the rear surface of the outward flange portion, The liquid material can be reliably sucked into the nozzle through the passage. Therefore, the phenomenon that the other surface of the pouch is stuck to the base of the nozzle and the liquid material is not sucked into the nozzle at all can be prevented, and the liquid material in the pouch can be used up.
[0018]
According to the second aspect of the invention, the effects of the first aspect of the invention can be obtained with a simple configuration.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a nozzle of a pouch with a nozzle according to the present invention.
FIG. 2 is a longitudinal sectional view of a nozzle fixed to a pouch according to the present invention.
FIG. 3 is a partial perspective view showing another example of the nozzle of the pouch with a nozzle of the present invention.
FIG. 4 is a partial plan view showing still another example of the nozzle of the pouch with a nozzle according to the present invention.
FIG. 5 is an overall perspective view of a general pouch with a nozzle.
FIG. 6 is a partial longitudinal sectional view showing a structure for fixing a base to one surface of a pouch.
FIG. 7 is a perspective view showing a state in which a pouch with a nozzle is housed in a housing.
FIG. 8 is a perspective view showing a state in which a pouch with a nozzle is housed in a housing and the nozzle is fixed to the housing.
FIG. 9 is a perspective view showing a state in which a housing accommodating a pouch with a nozzle is closed by a cover.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Pouch 11 One surface 111 Inner surface 2 Nozzle 21 Elastic pipe 22 Discharge part 23 Base 231 Tube part 232 Outward flange part 251 Front surface 252 Back surface

Claims (2)

In a pouch provided with a nozzle for once discharging the liquid material in the pouch and then discharging,
The nozzle consists of an elastic pipe, a discharge section at the tip, and a base at the rear end, and is fixed to the pouch at the base,
The base has a tubular portion communicating with the elastic pipe, and an outward flange portion provided at one end of the tubular portion. By joining the surface of the flange portion on the cylindrical portion side to the inner surface of the pouch, it is fixed to the one surface of the pouch,
A pouch with a nozzle, wherein a passage communicating between the inside of the tubular portion and the outside of the outward flange portion is formed on the back surface of the outward flange portion opposite to the front surface. The pouch with a nozzle according to claim 1, wherein the passage is a groove.

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