JPH03200517A - Bag carrying out device - Google Patents

Abstract

PURPOSE:To make it possible to release a bag one by one from a bundle of bags which is stored in a case by a simple mechanism by a method wherein a bundle of bags which is suspended on a hook is pressed between a feeding roller and holding plate, and by rotating operation of the feeding roller, bags are sent out to a bag take-out port one by one. CONSTITUTION:Under a condition in which a case cover 2 is opened, a hook hole 14 of a bundle of bags is fitted on a hook 4 which is attached on the rear wall of a case 1, and thus the bundle of bags is supported by suspension. By closing the case cover 2, and the bundle of bags is pressed between a holding plate 6 and a feeding roller 7. Then, when bag carry-out command is given, a driving motor 10 operates, and the feeding roller 7 is rotation-driven in the direction shown by arrow. By doing this, a first bag 13 which is in contact with the feeding roller 7 is sent downward by friction force which works between the bag 13 and the roller 7. By tensile force at the time, the hook hole 14 which is bored on the top of the bag 13 is ruptured along a perforation 15, and the bag 13 is separated from the hook 4 and roller-sent downward. When the tip of the first bag 13 protrudes from a bag take-out port 3 of the case 1 up to a certain degree. the driving motor 10 stops.

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention is designed to be installed in a vending machine so that when a customer buys multiple products at once, a portable bag for taking the products home is provided. This invention relates to a device for carrying out bags that are provided one by one to customers.

[Conventional technology] Vending machines for large products such as beer are equipped with a bag delivery device inside the machine, and customers who purchase multiple products at a time are given a portable bag for taking the products home. Some services have been put into practical use that provide services one by one.

In the conventional device for carrying out such bags, a continuous flat bag made of polyethylene wound into a roll is housed in a case, and the bag pulled out from the continuous roll is fed by a feeding roller mechanism. The bag is fed out toward the tearing outlet, and a cutter mechanism disposed on the conveyance path cuts the bag one by one along the perforations and takes it out to the tearing outlet.

[Problems to be Solved by the Invention] By the way, the above-mentioned conventional bag discharging device requires steps such as feeding the bags one by one from the continuous roll, pinch-feeding the bags, and further operating the cutter mechanism. However, the mechanism and control system for this are complicated and the equipment is expensive.If a carry bag is used here, the continuous bag is a custom-made product, which increases the cost of the bag itself.Moreover, it is difficult to replenish the bag. When doing so, set a new continuous roll in the case, and then move the bag pulled out from the roll to the transport roller along the transport path.

It is necessary to route the wire between cutter mechanisms, etc., and management thereof is troublesome.

The present invention has been made in consideration of the above points, and instead of the conventional continuous bag, a bag bundle of easily available flat bags or bags with a carry bag is adopted as a portable bag to be provided to customers, and a bag bundle of bags with a carrying bag is used. To provide a bag discharging device capable of discharging bags one by one from a bag bundle stored in a case with a simple mechanism without requiring a detailed control system.

[Means to solve the problem]

In order to solve the above problems, the bag carrying-out device according to the present invention has a case in which a tearing outlet is opened at the lower end, and a hook for suspending and holding the bag bundle through a hole bored at the top of the bag bundle. The device is equipped with a stop hook, a feed roller with a built-in freewheel mechanism disposed below the hook, and a presser plate opposed to the feed roller and biased by a spring, and is hung by being hooked to the hook. The bag bundle is held between a feed roller and a presser plate, and in this state, the bags are separated from the hook one by one by rotation of the feed roller and sent to a tearing outlet.

In addition, as a device to accommodate so-called U-shaped bags, where the center part is cut out while leaving carrying straps on the left and right sides of the top of the bag, a bundle of bags is folded in half and suspended inside the case, which has a tear opening at the bottom end. A screen-like bag bundle support plate, a hook provided on the support plate for hanging bag bundles, a pair of feed rollers with a built-in freewheel mechanism positioned below the support plate and distributed to the left and right, The bag bundle is equipped with a presser plate which is biased by a spring and faces the feed roller, and is hung on the hook through a hanging hole made in the perforated top part of the U-shaped bag and suspended on the support plate. , press both left and right ends of the bag bundle hanging down from the support plate between the feed roller and the holding plate,
In this state, the bag is separated one by one from the perforation by rotating the feed roller and sent to the bag take-out position.

Here, the feed roller in each of the above configurations can be configured to be automatically or manually operated by being connected to a drive motor that rotates in response to a bag discharge command or a manually operated rotary drive mechanism.

Further, in order to facilitate the replenishment of the bag bundle into the case, it is preferable that the presser plate in the above configuration be attached to the inner surface of the case lid.

(Function) The bags used in the device with the above configuration are, for example, flat bags made of polyethylene or U-shaped bags with a carry-on bag, and the bag bundles are hung into the case by hanging from the hanging holes drilled at the top of the bags. The bag bundle is hung or folded in half and suspended on a screen-like support plate, and then the free end portion of the bag bundle is pressed between a feed roller and a presser plate to be stored and set.

In this state, when the feed roller is rotated in a fixed direction by motor drive or manual handle operation based on the bag unloading command, the first bag in contact with the roller surface of the feed roller is handled downward, and the bag is The bags hung on the hook are cut one by one by the hook, and then sent out to the bag outlet of the case by the feeding action of the rollers. Note that the roller feeding operation at this time stops when the leading end of the bag protrudes somewhat from the bag outlet of the case. Next, when the customer grabs the tip of the bag that protrudes outward from the bag outlet of the case and pulls it downward, the freewheel mechanism built into the feed roller works, causing the feed roller to spin idly, and the bag continues to flow outward. It can be removed. Note that when the -th bag is directly handled in contact with the feed roller, some force is applied to the second and subsequent bags, but the coefficient of friction between the bags (made of 1/2 polyethylene) is small. , this prevents the second and subsequent bags from being separated from the hook.

In addition, especially in devices for U-shaped bags, the feed roller is divided into two parts on the left and right so that it comes into contact with both the left and right ends of the U-shaped bag (corresponding to the position of the carrying band), so the feed roller is divided into two parts in the process of carrying out the bag. There is no risk of contacting the second bag through the upper cutout of the U-shaped bag, thereby avoiding carrying out excess bags.

〔Example〕

Embodiments of the present invention will be described below based on the drawings.

First, Figures 1 and 2 show the structure of an embodiment of the present invention. In the figures, 1 is a bag storage case formed as a vertically long box, and 2 is a bag storage case for replenishing bag bundles in the case. It is a case lid that can be opened and closed, and a bag outlet 3 is opened on the bottom surface of the case l.

In addition, at the upper part of the case there is a hook 4 for hanging the bundle of bags all at once, and at the lower part there is a presser foot 6° and a feed roller 7 which are urged inward through the spring member 5.
are placed facing each other. The feed roller 7 is connected to a drive motor 10 via a drive shaft 8 and a reduction gear 9.

The operation of the drive motor 10 is controlled by a bag discharge command given in connection with the sales operation.

Here, the presser plate 6 is a rectangular plate attached to the inner surface of the opening/closing member M2 via a spring member 5, as shown in FIGS. 3 and 4. Further, as shown in FIG. 5, the feed roller 7 has a surface made of a rubber layer 7a with a high coefficient of friction, and a water wheel 11 and a ratchet pawl 12 are provided inside the roller between it and the drive shaft 8. Combined freewheel mechanism 22
is included.

Next, FIG. 6 shows a bag used in the above-mentioned carrying out device. That is, the bag 13 is a flat bag made of polyethylene film, for example, and has a small hanging hole 14 in the center of its top, and a hole 14 as shown in FIG. 7 between the hole 14 and the upper edge of the bag. There is a perforation 15 on the side. Therefore, if the bag 13 is suspended and supported by passing the hook 4 through the above-mentioned hanging hole 14 and pulling the bag 13 downward with a slight force as shown in the figure, the part along the perforation 15 will be removed. It breaks easily and the bag 13 is separated from the hook 4.

Next, FIGS. 8(a) to 8(e) illustrate the bag carrying-out operation with the above configuration.
). First, in order to store and set a bag bundle made up of a large number of flat bags 13 in the case 1, with the case lid 2 open, insert the hanging hole 14 of the bag bundle into the hook 4 attached to the back wall of the case 1. Then, the case lid 2 is closed and the bag bundle is pressed between the presser holder 6 and the feed roller 7.

Next, when a command to carry out the bag is given from the standby state in Figure 81, the drive motor 10 shown in Figure 2 starts and rotates the feed roller 7 in the direction of arrow P as shown in Figure b1. As a result, the first bag 13 in contact with the feed roller 7 is handled downward by the frictional force acting between it and the roller, and the tension at that time causes the hanging hole drilled in the top of the bag 12 to open as shown in FIG. 14 is torn along the perforation 15, separated from the hook 4, and sent downward by a roller.Then, the tip of the first bag 13 protrudes from the bag outlet 3 of the case 1 to some extent (as shown in Figure 01). At this point, the drive motor 10 stops.Subsequently, when the customer grabs the tip of the bag 13 protruding from the outlet 3 of the case l and pulls it downward,
The feed roller 7 is a freewheel machine lI2 shown in FIG.
2, it spins idly and is pulled out of the case as shown in figure (e). At the same time, the bag bundle remaining in the case is pressed by the presser foot 41i6 from behind by the spring bias, and the bag returns to the standby state again with the second bag being pressed against the feed roller 7. Thereafter, in the same manner, the bags 13 are dispensed one by one for each discharge command.

In addition, in order to perform the above-mentioned bag carrying operation reliably, the coefficient of friction acting between the feed roller 7 and the bag 13 is adjusted to
The coefficient of friction between the bag 13 and the holding plate 6 is set to be larger than that, and the hanging hole 14 of the first bag 13 is broken due to the tensile frictional force between the bag 13 and the presser plate 6, so that it can be easily removed from the hook 4. The spring force of the spring member 5 that presses and biases the presser plate 6 shall be appropriately set so that the presser plate 6 is separated.

Next, an applied example in which a part of the above-mentioned example is changed will be described.

First, FIGS. 9 and 10 show an example of application to a case, in which one end of the case lid 2 is attached to the case 1 via a hinge 2a in an openable/closable manner, and the inner surface of the open/close 12 has its own The holding plate 6 made as a leaf spring is attached. With this configuration, when the case lid 2 is opened and the bag bundle is suspended and supported by the hook 4 installed inside the case, and the opening/closing I2 is closed here, the bag bundle is simultaneously transferred to the feed roller 7.
and the presser plate 6.

Further, FIGS. 11 and 12 each show a manually operated feed roller rotation drive mechanism 16. As shown in FIG. 1st
In the configuration shown in FIG. 1, the drive shaft 8 of the feed roller rough is a combination of a gear mechanism 17 consisting of large and small gears, a vibrating operating lever 1B connected to the gear mechanism 17, and a return spring 19 attached to the operating lever 18. As a result, the tip of the operating lever 18 protrudes to the front of the case 1. With this configuration, when the operating lever 18 is manually pulled down from the illustrated state, the feed roller 7 is rotationally driven in a fixed direction via the gear mechanism 17. Furthermore, when the lever I8 is released after being pulled down, the lever I8 is returned to its original position by the return spring 19. At this time, the freewheel mechanism 22 described in FIG. The operating lever 18 returns without any movement.

In the embodiment shown in FIG. 12, a rack 20 and a pinion 21 are used instead of the gear mechanism 17 in the embodiment shown in FIG.
It is a combination of the rack 20 and the operating lever 1.
8 is connected.

Next, an embodiment of the present invention corresponding to a U-shaped bag will be explained with reference to FIGS. 13 to 18. First, FIG. 13(a).

(B) shows the U-shaped bag 23 in its unused state when folded and in its used state with a diameter of m. The upper center is cut out leaving an uncut portion 23c with an eye 23b, and hanging holes 23d are bored in three places on the left and right of the left uncut portion 23c. Such U
The total length of the bag 23 is larger than that of the flat bag 13 shown in FIG.
If it were to be suspended within the case as in Fig. 1), the case l would be large.

Therefore, in the embodiment shown in FIGS. 14 and 15, inside the bag storage case 1, there is a push plate 6 which is pressed against the inner surface of the case lid 2 from behind by a spring 5, and is opposed to the push plate 6. Along with the feed roller 7, a screen-like support Fi24 for suspending the bag bundle is provided at the upper part of the case. This support plate 24 is held in a vertical position by appropriate fixing means (not shown) when housed in the case and is held in a vertical position by an appropriate fixing means (not shown), and when refilling the bag, the support plate 24 is removed from the case using the hinge 24a at the lower end as a fulcrum, similar to the case lid 2. The front side is attached so that it can be opened at the pull-out position shown by the chain line, and the bag bundle is hung all together at the center of the lower part of the back side of the support Fi 24 as in the previous embodiment. Book hook 4 is planted.

As clearly shown in FIG. 14, the feed roller 7 is a roller with a two-part structure in which a pair of rollers 71 and 72 are arranged on the axis of the drive shaft 8 and distributed to the left and right, and each divided roller 71. A freewheel mechanism 22 similar to that described in FIG. 5 is incorporated between the drive shaft 8 and the drive shaft 72. The drive shaft 8 of the feed roller 7 is shown in FIG. 2 or 11.
12, it is connected to a drive motor or a manually operated rotary drive mechanism.

Next, the operation of carrying out the U-shaped bag 23 with the above configuration will be explained. First, to store and set bags in the case 1, first open the case lid 2 as shown in FIG.
4, and in this state, hook the hook 4 to the hanging hole 23d of the bag 23 shown in FIG. If so, the state shown in FIG. 17 will be obtained.

That is, the bag bundle is folded in half and suspended on the support plate 24, and at the free end hanging downward from the front surface of the support plate 24, both left and right ends of the bag bundle are pushed between the feed roller 7 and [6]. pressed down. A front view of this state is shown in FIG.

Here, when the feed roller 7 is rotated in a fixed direction via the drive motor or manual rotation drive mechanism, the feed roller 7
By the feeding operation, the first bag 23 in contact with the roller 7 is handled downward, and the force acting on the bag at this time causes the U-shaped bag 23 to be perforated, leaving the uncut portion 23a at the top on the hook 4 side. After being separated along the line 23b, it is sent by rollers toward the tearing outlet 3 of the case. The subsequent bag removal operation is similar to that described in FIG. Moreover, in the above-mentioned roller feeding process, the divided rollers 71 and 72 of the roller rough are transferred to the U-shaped bag 2.
Since it makes contact with both left and right ends corresponding to the carrying strap 23a of No. 3, it does not come into contact with the second bag overlapping behind it through the center cutout, and as a result, the rollerfing action is applied to the second bag. The bags can be reliably dispensed one by one each time without any problems. In addition, since the bag bundle is suspended on the support plate 24 in the form of being folded in half within the case 1, the vertical dimension of the case l is larger than the length dimension L of the bags (see FIG. 13(a)). can be made smaller.

[Effects of the Invention] Since the bag discharging device according to the present invention is configured as described above, it has the following effects.

(1) As a portable bag for take-home products, instead of using a custom-made continuous roll like in conventional devices, a bundle of flat bags or U-shaped bags that are available on the market can be used as is. Can be provided to customers.

(2) When transporting bags, there is no need for a complicated feeding mechanism or control system like in the case of continuous bags, and the bag can be transported in a simple manner by simply rotating the feed roller using a drive motor or manual lever. You can reliably pay out one by one.

(3) Furthermore, even when replenishing bags, an arbitrary number of bags can be added, and the work is extremely simple, as all that is required is to hang the bags on a hook on the case side.

(4) As a device especially compatible with U-shaped bags for hand-carrying, the length dimension is reduced by providing a support plate for folding and suspending the bag bundle in the case, and a feed roller that is divided into left and right halves. Not only can a large U-shaped bag be stored in a small case, but also the bags can be reliably transported one by one without interfering with the center cutout of the bag.

[Brief explanation of drawings]

Fig. 1 Fig. 2 is a vertical sectional side view and front view showing the configuration of an embodiment of the present invention, Figs. 3 and 4 are side views of a temporary presser foot,
and a front view, Fig. 5 is a diagram of the freewheel mechanism inside the feed roller, Fig. 6 is an external view of the bag, Fig. 7 is a partially enlarged view of Fig. 6, and Figs. 8 (a) to (e) are bags. An explanatory diagram of the unloading operation,
Fig. 9 is a cross-sectional view of the structure of the applied example of the case, Fig. 10 is an external view of the case in Fig. 9 with the lid open, Fig. 11, Fig. 12
The figures show the configuration of the manually operated feed roller rotation drive mechanism, Figures 13(a) and 13(b) show the U-shaped bags in unused and used states, and Figures 14 and 15 show the U-shaped bags, respectively. A perspective view and a side view showing the internal mechanism of the case of the embodiment for carrying out bags, Figures 16 and 17 are diagrams showing the state during and after replenishment of bag bundles, respectively, and Figure 18 is an explanation of the operation of carrying out U-shaped bags. In figure 0, there is an 18-bag storage case, 2: case lid, 3: tearing outlet, 4:
Hook, 5: Spring, 6: Holding plate, 7: Feed roller, ? 1
, 72: Split roller, 10: Drive motor, 13: Flat bag, 14: Hanging hole, 15: Perforation, 16. 17: Manually operated rotary drive mechanism, 22: Freewheel mechanism, 23:
U-shaped bag, 23a: Handbag belt, 23b = uncut portion, 1st
Figure 2 Figure 8 Closed yP3 41st! ] Figure 5 Early Figure 6 Figure 7 Closed Figure 9! ! P10 figure single 110 12th flash 16th closed figure 17 +-F1B

Claims (1)

[Scope of Claims] 1) A bag discharging device for discharging bags one by one from a bag bundle in which a large number of flat bags are piled up and stored in a case at once, the interior of the case having a bag ejection port opened at the lower end. includes a hanging hook that suspends and holds the bag bundle through a hanging hole drilled at the top of the bag bundle, a feed roller with a built-in freewheel mechanism located below the hook, and a feed roller facing the feed roller. and a spring-loaded presser plate, the bundle of bags hung from the hook is pressed between the feed roller and the presser plate, and in this state, one bag is separated by rotation of the feed roller. A bag delivery device characterized in that the bag is separated from a hook and delivered to a bag delivery port. 2) Using a U-shaped bag with a cutout in the center leaving carrying straps on the left and right sides of the top of the bag, remove the bags one by one from a bundle of bags stacked together and stored in a case. The bag carrying device is a bag carrying device, and inside a case with a bag outlet opened at the lower end, there is a screen-like bag bundle support plate for folding the bag bundle in half and suspending the bag bundle, and a hanger for the bag bundle provided on the support plate. A locking hook,
It is equipped with a pair of feed rollers with a built-in freewheel mechanism located below the support plate and distributed to the left and right, and a presser plate that is biased in opposition to the feed rollers, and has perforations in the U-shaped bag. For a bag bundle suspended on a support plate by hooking the hang hole drilled in the uncut portion of the top onto the hook, press both left and right ends of the bag bundle hanging from the support plate between a feed roller and a presser plate, A bag delivery device characterized in that, in this state, the bags are separated one by one from the perforations and delivered to the bag removal position by rotating the feed roller. 3) The bag discharging device according to claim 1 or 2, wherein the feed roller is connected to a drive motor that rotates in response to a bag discharging command. 4) The bag discharging device according to claims 1 and 2, wherein the feed roller is connected to a manually operated rotational drive mechanism. 5) The bag discharging device according to claims 1 and 2, wherein the press plate is attached to the inner surface of the case lid.