JPH06321220A - Unpacking of bag opening and apparatus and applied bag thereof - Google Patents

Abstract

PURPOSE:To provide unpacking way of a bag opening its apparatus and also a suitable bag for unpacking by these way and apparatus. CONSTITUTION:An extension 2 is formed at only one face in the outside of the opening 9. A plurality of packing plastic bags 1 having holes on the extension 2 are superimposed and the extension is fixed. Air is charged by turning one's mouth above the extension 2 of the uppermost bag to fill air in the bag 1 and open the bag opening 9. The bag is removed after the contents are charged therein. This apparatus is provided with a supporting means of the bags 1, an air blowing means fixed to the supporting means, and a fixing means of the extended part 2 of bags at a specified position against the supporting means.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a method and apparatus for opening a bag mouth, and a bag suitable for opening the bag thereby.

[0002]

BACKGROUND OF THE INVENTION Long and narrow agricultural products such as cucumbers, eggplants and green onions are shipped before shipment or at retail stores.
It is often put in an elongated plastic bag for packaging before being sold in a supermarket or the like. Bagging work has been done manually until now, but the mouth of the new bag is snug and tight, making it easy to open the bag mouth and also slip crops that can't be handled violently. Therefore, it takes time and effort to open the inside of the bag, and until now, extra labor has been required for manual bag packing.

Also, when packing a bouquet such as a paper dispenser at the shop front of a flower shop, or when it is used indoors to prevent water drops of an umbrella, it is troublesome to open the mouth and the inside of an elongated plastic bag. In the industrial field where it is difficult to use a large-scale automatic bag filling machine etc., a simple method and device for opening the mouth of the bag have been demanded.

[0004]

The present inventors have completed the present invention as a result of intensive research to solve the above problems.

The first aspect of the present invention relates to a bag for the purpose of packaging, to put a wet umbrella, etc., which should be used in a method and apparatus for opening a convenient bag, and relates to a longitudinal direction of two elongated plastic films. In a plastic bag formed by closing two sides and one side of the end to be continuous or bonded and open the remaining one side, the remaining one side extends only one film The present invention relates to a plastic bag for packaging, which has an extension outside the mouth of the bag and has a fixing hole at a position of the extension away from the mouth. Here, the plastic bag is only required to be flexible so as to expand when blown with air from the mouth of the bag made of a thin film, for example, one made of polyethylene or any other polymer. obtain. In the method and apparatus of the present invention, since a large number of bags are stacked and the extension is pressed over a considerable area, the extension of the bag needs to have a sufficient length from the mouth of the bag, for example, a bag having a width of 12 cm is used. In this case, the extension is preferably about 7 cm. For the same reason, it is preferable that the fixing hole is located sufficiently away from the mouth, for example, about 5 cm from the mouth.

In a second aspect of the present invention, a large number of the plastic bags and the like described in the above (1) are stacked so that the extension portions of the respective bags are in the same direction, and the extension portions are pressed and fixed in that direction toward a predetermined surface. Then, an air flow is sent toward the mouth of the bag last stacked on the extension of the bag, and the bag of the last stack is filled with air to open the mouth of the bag, and the contents of the bag are opened. The present invention also relates to a bag packing method which comprises removing the bag after putting the bag into the bag, and similarly packing the next bag and repeating the removal of the bag a necessary number of times.

A third aspect of the present invention is an apparatus used in the above method (2), comprising (1) a supporting means having a supporting surface for supporting a large number of stacked bags, and (2) An air blowing means fixed to the supporting means and having an air blowing port, and (3) the air blowing on the extension surface of the bag located farthest from the supporting surface of the supporting means of the plurality of stacked bags. In order to allow air from the mouth to flow toward the mouth of the bag, the extensions of the multiple stacked bags are attached to the supporting means so that the extensions are always located at substantially the same level near the air outlet. The present invention relates to a device comprising a fixing means for fixing it against.

A fourth aspect of the present invention is the above-mentioned aspect (3), in which the blower means is oriented horizontally with respect to the electric fan in the air passage and the support surface of the support means at the end of the air passage. The fixing means comprises a pillow for hingedly positioning the mouth of the bag on the upper surface, and the one end farther from the air outlet is hinge-fixed on the supporting surface. The lower surface has a bag pushing plate in contact with a spring interposed between the supporting surface, an extension of the bag and a downward vertical pin passing through a hole formed in the bag and the supporting surface. The plate includes a press plate and a press fitting that can be fixed to the support means and presses both sides of the plate to press and fix the extension part of the bag to the plate. The pressing metal member has a flat surface or a groove along the direction of the wind in order to eliminate the disturbance of the air flow. Serial relates to an apparatus as described in (3). The retainer fitting that can be fixed to the support means has, for example, an axis that traverses the support means, and is pivotable about the axis,
It may be a metal fitting that can be fixed to the support means by a permanent magnet or a clasp.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. Figure 1
Is a schematic view showing the outline of the device of the present invention, and FIG. 2 is a perspective view of a plastic bag.

In the schematic view of FIG. 1, the extension 2 to which one film of the mouth 9 of the bag 1 is extended is oriented in the same direction (downward),
A state in which a large number of plastic bags 1 are stacked on the support surface 3 of the support base and the bag pushing-up plate 4 provided on the support surface (since the bag is flexible, the support surface 3 is actually Also touch the top).

Air is blown by the fan 6 rotated by the motor 5 through the air passage 7 from the air outlet 8 in parallel with the support surface 3, flows on the extension 2 of the bag 1, and the mouth 9 of the bag. Into the bag and inflate bag 1.

The plate 11 is pressed by pressing the hole 10 of the extension portion 2.
Because the pin 12 of the
By the pressing force of, the bag 1 is kept at a predetermined position in the horizontal direction against the force of the wind.

On the other hand, the push-up plate 4 supporting the bag is attached to the spring 13
Is pushed up from below, and the mouth 9 of the bag 1 is
In order to apply the air to, the extension 2 of the uppermost bag 1 is kept at the most desirable level at a position just before the blower opening 8.

That is, as can be understood from FIG. 3 showing a perspective view near the air outlet and FIG. 4 showing its exploded view,
The plate 11 is pressed on both sides by the plate pressing metal fittings 14. A shaft 15 of the plate pressing member 14 is pivotally received by a bearing 16, and the plate 11 is mounted in a flipped-up state and then tilted to a horizontal position where it contacts the upper end of the magnet 17. Therefore, if the height of the upper end of the magnet 17 fixed to the support means is appropriately determined, the plate 11 is pushed from below by the push-up plate 4 below the stacked bags, while the plate 11 is pushed from above by the holding metal fitting 14. Since it is pressed, whether the number of bags 1 is large or small, the plate 11 and thus the top bag 1
Is always kept at a constant level with respect to the blower opening 8 fixed to the support means. Pressing bracket 14 instead of magnet 17
A clasp may be provided on the wall 19 of the support means for fixing the in a horizontal position.

Further, when a pillow 18 formed, for example, by laying a rod in a transverse direction is provided at an appropriate position on the upper side of the push-up plate 4, the mouth 9 of the bag 1 placed on the pillow 18 is positioned just on the upslope, The wind easily hits the mouth 9 of the uppermost bag, and the uppermost bag 1 can be surely inflated.

Further, the wind formed by the pressing member 14 and the plate 11 in the same direction as the wind allows the wind to flow without being disturbed. Further, the walls 19 on both sides not only serve to house the bag 1 in an orderly manner, but also have a function of protecting the wind from the blower port 8 from the disturbing outside wind.

With the bag 1 inflated, the operator can easily put the contents, such as green onions and cucumbers, into the bag 1 through the mouth 9
You can slide it inside. Therefore, it is convenient for the support base 3 to be maintained horizontally or at a slightly inclined angle in the leeward direction. When the bagging is completed, the top bag is pulled and the bag is torn off from the pin 12 that penetrates the hole 10. At this time, if the perforation 21 (see FIG. 2) is attached to the bag, the bag can be easily torn off. When the bag is removed, the air comes into contact with the mouth 9 of the next bag 1 therebelow while the air is blown, so that the next bag 1 inflates and its mouth opens. By repeating bag filling and bag removal in this manner, efficient bag filling is realized.

[0018]

[Effect of the present invention]

1) The present invention is extremely useful for use in a place where a large-scale automatic bagging machine such as a farmer or a store cannot be used because the bag can be easily packed by an extremely simple device which is inexpensive. Is. 2) Since electric power is only required for the fan motor, it can be easily used outdoors and is highly useful in the agricultural field.

[Brief description of drawings]

1 is a schematic representation of the device of the present invention.

FIG. 2 is a perspective view of a bag used in the bag packing method of the present invention.

FIG. 3 is a perspective view of the device of the present invention with a part omitted.

FIG. 4 is an exploded view of the device of the present invention with a part omitted.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kagetoku Yamada 1273-5 Nogawa, Miyamae-ku, Kawasaki City, Kanagawa Prefecture (72) Kenji Shinkai 3-37-4-304 Kenji Urayasu, Chiba Prefecture

Claims (4)

[Claims] 1. A plastic bag formed by closing two continuous sides of a long and narrow plastic film in the longitudinal direction and one side of the end thereof so as to be continuous or bonded and the remaining one side is open. The remaining one side is extended by only one film to form an extension outside the mouth of the bag,
A plastic bag having a fixing hole at a position apart from the mouth of the extension. 2. Two elongated plastic films having two longitudinal sides and one terminal end closed and continuous or bonded together, the remaining one side open, and the remaining one side one A number of plastic bags that extend only outside the film to form the extension outside the mouth of the bag, and stack a number of plastic bags so that the extensions of each bag are in the same direction and press the extensions in that direction toward a predetermined surface. Fix and open the mouth of the bag by sending an air stream over the extension of the bag that was last stacked toward the mouth of the bag and filling the bag that was last stacked with air. A bag-filling method comprising inserting the contents and then removing the bag, and then similarly packing the next bag and removing the bag as many times as necessary. 3. The apparatus used in the method of claim 2, wherein (1) a supporting means having a supporting surface for supporting a large number of stacked bags, and (2) being fixed to the supporting means. A blower having a blower port, and (3) the air from the blower port on the extension surface of the bag located farthest from the supporting surface of the supporting means of the plurality of stacked bags. Fixing means for fixing the extensions of the multiple stacked bags to the support means such that the extensions are always at approximately the same level near the blower opening for flushing toward the mouth of the bags. A device consisting of. 4. The blower means comprises an electric fan in the air passage and a blower opening at the end of the air passage and oriented horizontally with respect to the support surface of the support means, and the fixing means comprises the blower. One end farther from the mouth is hinged on the support surface, a pillow is provided on the upper surface for locating the mouth of the bag at an upward inclination, and the lower surface is in contact with a spring interposed between the support surface and A bag lifting plate, a pressing plate having an extension of the bag and a downward vertical pin penetrating the bag lifting plate and a hole formed in the supporting surface, and can be fixed to the supporting means. Pre-
And a press fitting for fixing the extended portion of the bag against the plate by pressing both sides of the plate.
4. The device according to claim 3, wherein the pressing member and the pressing member form a flat surface or a groove along the direction of the wind in order to eliminate disturbance of air flow.