JP2000128236A - Liquid toner container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a liquid toner container of such a type that a pour-out plug of an inner bag is visible through a pour-out plug window of a carton, which shrinks approximately uniformly from all directions with a volume gradually reduced, by using a seamless tube in the inner bag. SOLUTION: An inner bag 3 to be used for the liquid toner container comprises a seamless tube made of a plastic or the like, or a balloon, which is formed of a thin film material made of rubber or the like, which is excellent in elasticity. The flexible inner bag 3 made of the seamless tube with contents received is mounted in a box formed with a lid so that a pour-out plug part 31 is visible through a pour-out plug window. Further on it, a rear wall lower extension piece is folded onto left and right sidewall lower extension pieces folded inward, and a rear face of a lower wall is stuck to a surface of the rear wall lower extension piece to form a bottom, thereby obtaining the liquid toner container in an approximate parallelopiped form. When the liquid toner container is used in a copy machine, the inner bag 3 shrinks approximately uniformly from all directions as contents are discharged and reduces its volume gradually.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inner bag of a liquid toner container (particularly, a bag-in-carton) for storing a liquid toner for a copying machine.

[0002]

2. Description of the Related Art In recent years, various bag-in-carton type liquid toner containers made of paper and disposable have been developed in consideration of environmental problems and the like. Liquid toner (500000 to 600
000 cpi) is smoothly used up. Generally, in a copying machine or the like using liquid toner, the liquid toner is positively pumped up from a container by a pump action and used.However, in the case where the inner bag has an adhesive portion such as a spine, Since the bending strength of the portion was higher than the other portions, the shrinkage of the inner bag did not work well, and the liquid toner remained along the back seal portion, so that the entire amount could not be used up smoothly.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and the inner bag is almost uniformly deformed from all directions with the discharge of the high-viscosity liquid toner as the contents. It is an object of the present invention to provide a liquid toner container which is folded and whose volume is gradually reduced so that the entire amount of contents can be used smoothly and reliably.

[0004]

Means for Solving the Problems A first invention of the present invention is:
A liquid toner container of a type in which a spout portion of an inner bag can be viewed through a spout window of a carton, wherein a seamless tube is used for the inner bag.

Further, the present invention is the liquid toner container according to claim 1, wherein the seamless tube is a balloon having a bottom.

The present invention is the liquid toner container according to claim 1 or 2, wherein the seamless tube is made of a thin elastic material.

[0007]

According to the liquid toner container (1) of the present invention, a seamless tube made of plastic or the like (without backing) is used as the inner bag (3), or a balloon-like thin elastic material made of rubber or the like is used. Is used, it shrinks almost uniformly from all directions, and its volume can be gradually reduced.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on embodiments. FIG. 1 is a schematic perspective view of the liquid toner container of the present invention. FIG. 2 is a schematic development plan view of a carton blank used in the liquid toner container of the present invention, as viewed from the back. FIG. 3 is a schematic view of an inner bag used for the liquid toner container of the present invention. (A) is one in which the upper and lower ends are sealed using a seamless tube, and (b) is made of a balloon-like elastic film. 1 to 3
1, 1 is a liquid toner container, 2 is a carton, 201
Is a front wall, 202 is a spout window wall, 2021 is a spout window, 2
03 is the left margin of the spout window wall, 204 is the right margin of the spout window wall, 205 is the upper wall, 206 is the lower wall, 207 is the left wall, 208 is the extension piece on the left wall, and 209 is the lower piece on the left wall. 210, right side wall, 211, right side wall extension piece, 212
Is a right wall lower extension piece, 213 is a rear wall, 214 is a rear wall upper extension piece, 215 is a rear wall lower extension piece, 216 is a rear wall margin piece,
3 is an inner bag, 31 is a spout portion, and I to Yo are muscle presses.

[0009]

EXAMPLES The liquid toner container of the present invention will be described in detail with reference to specific examples.

<Embodiment 1> A spout window (2021) is formed at the center of the front wall (201) through a crimping (a), and the spouting window (2021) is crimped to the left and right (b). (C), a spout window wall (202) in which a spout plug window wall left margin (203) and a spout plug window wall right margin (204) are continuously provided, and An upper wall (205) is connected above the window wall (202) via a crimp (d), and a lower wall (206) is connected below the front wall (201) via a crimp (e). To the left and right sides of the front wall (201),
Extension piece (208) on the left side wall via crimping upward (h)
And a left side wall (207) for continuously connecting the left lower wall extension piece (209) through a crimping (re) downward, and similarly upward through a crimping (nu). Extension piece on right side wall (21
1), and a right-side wall (210) for continuously connecting a right-wall lower extension piece (212) via a crimping (R) downward.
The upper piece (214) on the rear wall is connected to the right side wall (210) via the crimping (ヲ) to the right, via the crimping (W) upward, and the crimping (F) is pressed downward. Through the rear wall extension piece (21
5), and a carton blank having a rear wall (213) connected to the rear wall extension (216) via a crimping (Y) to the right is used for all crimping (A to Y). )
And the surface of the rear wall margin (216) is adhered to the left end of the rear surface of the left side wall (207) to form a cylinder, and the surface of the spout plug window wall left margin (203) is changed to the left side wall (207). ) On the back side, similarly, the surface of the right-side margin (204) of the spout window wall is adhered to the back side of the right side wall (210), and at the same time, the extension piece (208) on the left side wall which is bent inward into the cylinder, on the right side wall The extension piece (214) on the rear wall is folded over the extension piece (211),
Further, the upper wall (205) is bent thereon, and the back surface of the upper wall (205) is adhered to the surface of the rear wall upper extension piece (214) to form a lid portion. Then, a flexible inner bag (3) made of a seamless tube (without backing) containing the contents is attached so that the spout plug (31) looks through the spout window (2021). The rear wall lower extension piece (215) is bent by bending the left wall lower extension piece (209) and the right wall lower extension piece (212) upward. The lower wall (20
The bottom surface was formed by bonding the back surface of 6) to obtain a substantially rectangular parallelepiped liquid toner container of this example.

[0011] As another assembling method, a spout plug (3) of an inner bag (no contents) is provided in a spout window (2021).
The surface of the rear wall margin (216) is adhered to the left end of the rear surface of the left side wall (207) to form a cylindrical body by using the one adhered and fixed by looking into 1), and then a box is formed by forming a lid and a bottom. After forming the body, the liquid toner as the contents is filled from the spout port, and finally capping is performed. When the liquid toner container of this embodiment is used in a copying machine, the inner bag (3) shrinks almost uniformly from all directions with the discharge of the liquid toner as the contents, and gradually reduces the volume thereof. Without that part blocking the suction port of the suction nozzle,
The entire contents could be used up smoothly.

Example 2 In Example 1, a liquid toner container was obtained by using a balloon-shaped inner bag made of a thin film material such as rubber having high elasticity. Even when the liquid toner container of this embodiment is used in a copying machine, the inner bag (3) shrinks almost uniformly from all directions and gradually reduces the volume of the inner bag (3) as the contents of the liquid toner are discharged. And
Part of the contents did not block the suction port of the suction nozzle, and the entire amount of the contents could be used up smoothly.

[0013]

According to the liquid toner container (1) of the present invention, a seamless tube made of plastic or the like (no backing) is used as the inner bag (3), or a balloon-shaped, elastic rubber or the like is used. Since it is made of a thin film material, it shrinks almost uniformly from all directions, and its volume can be gradually reduced.The inner bag is folded toward the spout and a part of the inner bag Did not block the suction port of the suction nozzle, and was able to use up the entire content smoothly and reliably.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view of a liquid toner container of the present invention.

FIG. 2 is a schematic development plan view of a carton blank used in the liquid toner container of the present invention, as viewed from the back.

FIG. 3 is a schematic view of an inner bag used for the liquid toner container of the present invention. (A) is one in which the upper and lower ends are sealed using a seamless tube, and (b) is made of a balloon-like elastic film.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Liquid toner container 2 ... Carton 201 ... Front wall 202 ... Spout cock window wall 2021 ... Spout cock window 203 ... Spout cock window wall left margin 204 ... Spout cock window wall right margin 205 ... Upper wall 206 ... Bottom Wall 207 left side wall 208 left side wall extension piece 209 left side wall lower piece 210 right side wall 211 right side wall extension piece 212 right side lower piece 213 rear wall 214 rear wall Extension piece 215: Extension piece under the rear wall 216: Extra piece of the rear wall 3: Inner bag 31: Spout plug part

Claims (3)

[Claims] 1. A liquid toner container of a type in which a spout port of an inner bag can be seen through a spout window of a carton, wherein a seamless tube is used for the inner bag. 2. The liquid toner container according to claim 1, wherein the seamless tube is a balloon having a bottom. 3. The liquid toner container according to claim 1, wherein the seamless tube is made of a thin elastic material.