JPH0733809U - Bag opening device - Google Patents

Abstract

(57) [Summary] (Corrected) [Purpose] Promptly and surely put products and bulk into bags at places where distributed products are manufactured and sold, and where bags are provided for bags during rainy weather. A device that can be inserted is provided. [Structure] A large number of tongue-filled bags are bundled on the bag placing plate 11 in advance and hit. Further, in the device of the present invention, the spatula at the tip of the bag opening plate 42 suspended by the peck drive mechanism in the space in front of the bag pocket enters the bag pocket by operating the hand lever 23. , It returns while hooking it, so that the opening is surely and sufficiently performed.

Description

[Detailed description of the device]

[Field of Industrial Application] [0001] The present invention is a product (eg pickles) which may leak water or odor in a supermarket when shipping fresh foods at a production site or an accumulation site for vegetables and seafood. , Seafood, meat, detergents, insect repellents, frozen desserts, etc.), or at floors and products when it rains in department stores, hotels, airports, theaters, and other facilities where an unspecified number of people enter and leave. The present invention relates to a "bag opening device" which is devised so that the work can be performed quickly and easily when putting a umbrella in an umbrella bag provided to prevent getting wet.

[Prior Art] Conventionally, for the above-mentioned purpose, a bag made of thin polyethylene having a thickness of about 0.005 to 0.055 mm has been used. In the state, it was as if the two sheets were tightly stuck together, and it was not easy for humans to open each item quickly when inserting an article or umbrella. Therefore, the inventor of the present invention has already taken measures as a countermeasure, such as a "polybag automatic opening device" (Japanese Patent Application No. 4-248500) that uses airflow to open, and a sliding type opening guide plate with a tongue (pocket). We have devised a "bag opening device" (Practical application No. 5-56467) for opening a bag by inserting it into a bag.

[Problems to be Solved by the Invention] Each of the above-mentioned devices has a functional feature, and the type and shape of the article to be inserted or the situation at the site of use, for example, a store at a convenience store or an agricultural store. They exhibit their respective characteristics depending on whether the seafood is actually shipped. Therefore, even if the conventional device should be used in the right place in the right place, there is room to consider another type in consideration of the following points. Regarding the method of using air flow: The fields where agricultural products and marine products are wet and wet are usually prone to wet conditions. The air flow tends to make the bag opening uncertain because it tends to stick. Regarding the method of using the opening guide plate: Since the opening guide plate is simply moved into the pocket of the bag with a tongue, the opening of the mouth is insufficient even if the opening itself is surely performed. It tends to be.

[Means for Solving the Problems] In view of the above, in the present invention, in order to further secure the opening, the opening guide plate is used in accordance with the form and operating state while following the above-mentioned method of using the opening guide plate. I decided to add more engineers. The gist of the present invention is as follows. "It is a device that automatically opens a bag with a tongue placed by locking the tongue part on a predetermined bag mounting plate, and suspends it with a predetermined drive mechanism from the space in front of the pocket part of this bag. The bag opening plate is moved closer to the tip of the bag, the lathe is inserted into the pocket, the mouth of the pocket is hooked, and then the plate is retracted to open the bag. The technical points that were taken into consideration in order to bring out this feature are as follows.

As the bag, a bag with a tongue, that is, "a bag having a pocket portion and a tongue portion for guiding at the time of locking and inserting an article" (see FIG. 1) is used. A large number of bags are set by bundling them on a bag placing plate equipped with a bag stopper, and the holding angle of the bag placing plate is the type, shape, size, etc. of the articles to be inserted into the bag. Depending on the situation, it can be adjusted appropriately. However, it is sufficient that this angle is 0 ° to 90 ° with respect to the horizontal plane. Although the opening of the bag is based on the bag opening plate, in the present invention, the plate is moved in the longitudinal direction of the bag as in Japanese Patent Application No. 5-56467, and the bag is directly thrust into the pocket. I will not. And the method devised for that purpose is to suspend the bag opening plate by an appropriate suspension mechanism located in the front space of the pocket part of the bag, move it toward the bag according to the operation instruction, and insert the spatula part at the tip of the bag. This is done by letting the pocket plate enter the mouth of the pocket and then retracting the aperture plate itself. The spatula part of the opening plate faces the bag, collides with the bag, mechanically causes a niger so as not to damage the bag when pressing the bag, or makes the material itself flexible. To do. In connection with the above, it is assumed that the “basic” relative positional relationship between the predetermined position of the opening plate in the standby state and the bag mounting position does not change. That is, if the holding angle of the bag placing plate changes, the holding angle of the opening plate also changes in association with it. However, the reason why the relative positional relationship between the two is basically unchanged here is that the position of the pocket changes depending on the design and size of the bag, and the position of the opening plate during standby can be adjusted accordingly. This is because it may be necessary. By the way, in the above, the mechanism for moving the opening plate toward the bag may be a system using a swing arm as in the embodiment described later, or may be another method. . As another method, a method may be considered in which a guide rail is provided toward the bag placing plate and the opening plate slides there.

The tongue bag used in the present invention means a bag provided with a projecting portion adjacent to the opening, that is, like an ordinary envelope. There are no particular restrictions on the material of the bag, but in view of economy and water resistance, the same material as that of the bag usually used for preparatory packaging in supermarkets, that is, plastic such as polyethylene may be used. Also, of course, plastics such as polyvinyl chloride, polypropylene, polybutadiene, polyvinylidene chloride, polyethylene terephthalate (PET), ethylene-α olefin copolymer, waterproof paper, plastic laminated with aluminum foil, paper, etc. May be The thickness of the sheet as a bag material may be about 0.005 to 0.05 mm.

The locking of the tongue may be performed by any method, but a method using a locking tool as described below is conceivable as a method for simplifying the operation. The tongue part is held by a clip (clip) or the like provided on the bag mounting table. Insert the pins, bolts, rings, strings, etc., provided on the bag mounting table, into the holes provided in the tongue to engage them. Here, in the case of pins and bolts, after setting the tongue part, a pressing plate (having a hole or a U-shaped groove) is superposed on the tongue part to secure the bag more securely. Is good. It is desirable that the fitting and pressing plate be connected to the bag mounting table part by a link or the like so that the tongue part is pressed by the spring force. However, in the case of bolts, the link above may be omitted and the retaining plate and spring fitted on the bolt may be tightened with a wing nut or the like. In the case of a ring, of course, it is opened once, and after passing through the hole in the tongue portion, it is closed again in a link shape. The method of using the string is self-explanatory and will not be described.

By the way, although the tongue portion is usually provided with only one hole (see FIG. 1 (a)), the number of holes should be two or more in order to more securely fix the bag. Be free. In addition, it is free to use the same hole size or a combination of different holes. In this case, naturally, a plurality of pins and bolts are required. In addition, in order to make it easier to peel the bag body, there is no extra tongue part attached to the bag body unnecessarily, and to prevent the thickness change of the tongue part that is stacked and bound. As shown in Fig. 1 (b), it is desired that perforations be inserted in the tongue. However, if a perforation is to be made in this way, the tongue can be held by a holding tool, and the holes in the tongue and pins in the device can be omitted (see FIG. 1 (c)).

[Embodiment] Next, the configuration of the present apparatus will be described based on the embodiment of FIG. This device is basically divided into the following five parts. Base and stanchion Bag mounting plate Same as holding and tilting system Swing arm drive system Bag opening plate and swing arm as its holding base Of the above, it supports the mechanical parts of the base 1 and the stanchion 2 device. The bag placing plate 11 is attached to the bag placing plate mounting frame 3 as a holding and tilting system of the same. The frame is rotatably attached to the column by the rotary shaft 4, and can be set at a desired angle by the function of the angle adjusting index hole 5 and the angle adjusting screw 6 (see FIG. 3). In that case, since the drive device box 21 of the swing arm drive system is connected to the bag mounting plate mounting frame 3 by the connecting plate 7, the bag mounting plate is tilted by the same angle due to the tilting of the bag mounting plate.

Here, the swing arm drive system essentially includes a mechanism for driving the rotary shaft 25 for rotating the swing arm 41 that locks the bag opening plate (see FIG. 4). In this system, a drive shaft 22 rotated by a hand lever 23 is provided on one side of a drive device box 21, and a oscillating member 24 that is angularly displaced according to the rotation angle of the shaft is fitted to the drive shaft 22. A chain 27 is attached to the oscillating member, and the chain is hooked on a sprocket 26 fitted to a driven shaft 25 mounted on the other end of the drive unit box to change the direction, and one end is locked. It is suspended by a return spring 28 hung on a pin 29. After all, because of such a mechanism, when the lever 23 is pushed down, the shaft 25 rotates in the counterclockwise direction, and when the force applied to the lever is relaxed, the shaft is rotated reversely by the action of the return spring.

The rotation angle of the oscillating member 24, and thus the rotation angle of the shaft 25, is restricted by stopper pins 30 and 31 for the oscillating member. However, the swinging angle of the oscillator should be adjusted by the appropriate distance required between the bag pocket set on the bag placing plate and the bag opening plate. Therefore, the position of the stopper pin of the oscillator can be adjusted in the elongated hole provided in the drive device box (see FIG. 4B). By operating the hand lever 23, the swing arm 41 fitted on the shaft 25 can be swung within a desired angle range. By the way, a bag opening plate 42 is rotatably engaged with the swing arm by a rotation shaft 44, and the rotation angle can be appropriately adjusted by a stopper 46 (see FIG. 5A). A winding spring 45 is fitted on this shaft, and the spatula at the tip of the bag opening plate is set substantially parallel to the pocket surface of the bag by the action of this spring.

The basic configuration of this device is as described above. Therefore, when the hand lever 23 is pushed down, the swing and the tip of the arm rotate in the direction of approaching the bag, and eventually the tip of the spatula portion 43 of the opening plate elastically moves due to the action of the upward spring force. It reaches the opening 17 of the bag and enters the pocket. Then, by loosening the force applied to the lever, the spatula part tries to return to the original position while remaining in the pocket, and the opening of the bag is performed here. Therefore, it is only necessary to insert the article into the bag at that time, and after the article is inserted, pull the bag and tear off the tongue part.

By the way, the device of the present embodiment is designed so that the pocket portion of the bag is used from the vertical state at a supine angle of about 30 ° with respect to the horizontal plane. Therefore, in order to prevent the bottom of the bag from being accidentally pulled out or the tongue part to be cut off when an item is put into the bag, a shelf plate 15 is attached to the bag placing plate 11. is there. This is an L-shaped piece with a screw hole in the plate facing the bag placing plate, and is designed to be screwed into an appropriate position of the long hole 14 provided in the bag placing plate. is there. Incidentally, in the apparatus of this embodiment, the inclination angle of the bag placing plate is set as described above, but the apparatus itself according to the concept of the present invention does not limit the angle. For example, the bag mounting plate may be in a horizontal state.

[Effects of the Invention] In the bag opening device according to the present invention, a large number of tongue-filled bags are bundled and set in advance on the bag mounting plate. In the device of the present invention, by operating the hand lever, the spatula at the end of the bag opening plate, which is suspended by an appropriate drive mechanism in the space in front of the bag pocket, enters the bag pocket and pushes it. As it returns while hooked, the opening is made surely and sufficiently. Therefore, the user of this device does not have to set the bag himself / herself in the machine each time he / she packs the bag, but only operates the hand lever to automatically open the bag, and the bag is placed in the bag. It is only necessary to put them in, and by doing so, the opening operation of the bag and the inserting operation of the articles can be automatically performed in sequence. Therefore, according to the device of the present invention, when the product is packed in the place where the distribution products are produced or sold, such as the agricultural and marine products production area or the supermarket, or when it rains, the bag filling service of the umbrella is provided at the entrance of the department store or hotel. Very smooth work is guaranteed, such as when providing

[Brief description of drawings]

[Figure 1] Structure of bag with tongue

FIG. 2 is a perspective view of an apparatus according to an embodiment.

FIG. 3 Bag mounting plate and its tilting mechanism

FIG. 4 Drive device

[Fig. 5] Swing arm and bag opening plate

[Explanation of symbols]

 1: Base 2: Posts 3: Bag mounting plate mounting frame 4: Rotation axis 5: Rotation angle adjustment index hole 6: Angle adjustment screw 7: Connection plate 11: Bag mounting plate 12: Edge fin 13: Bag Locking screw 14: Long hole 15: Shelf 16: Bag pocket 17: Bag mouth 18: Bag tongue 19: Tongue hole 20: Tongue perforation 21: Drive box 22: Drive Shaft 23: Hand lever 24: Oscillator 25: Driven shaft (swing arm rotating shaft) 26; Sprocket 27: Chain 28: Return spring 29: Locking pin 30: Stopper pin 31: Same as above 32: Washer 33: Thumbscrew 41: Swing arm 42: Bag opening plate 43: Same as above Spatula part 44: Rotating shaft 45: Winding spring 46: Stopper 47: Non-rotating screw

Claims (1)

[Scope of utility model registration request] 1. A device for automatically opening a bag with a tongue placed by engaging a tongue portion on a given bag placing plate, wherein the bag has a predetermined space from a front space of a pocket portion of the bag. The bag opening plate suspended by the drive mechanism is brought close to it, the spatula at its tip is inserted into the pocket, the mouth part of the pocket is hooked, and then the plate is retracted to open the bag. A bag opening device characterized by the above.