JPH0339437Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a foldable container equipped with a flexible bag suitable for transporting or temporarily storing powder or granular materials.

<Prior Art> Collapsible containers, in which a frame is erected on a pallet and a flexible container is placed inside the frame, are used for transporting and storing powder and granular materials, are widely used as logistics equipment for powder and granular materials.

Conventionally, methods for supporting the bottom of a flexible container containing powder and granular materials include attaching a bottom plate with an outlet in the center to the pallet bottom frame, or incorporating a lattice crosspiece with a lattice hole in the center into the bottom frame. A method of support is being adopted. Furthermore, after injecting powder into a flexible container, a method is adopted in which the neck of the injection port is tied and the tied part is covered with a sheet.

<Problems to be solved by the invention> In the conventional method of supporting the bottom of a container, when granules are discharged, some of the granules remain inside the container because they are obstructed by the bottom plate or bottom lattice frame. A troublesome operation is required to discharge it. In addition, since the binding portion of the powder inlet is simply covered with a sheet, dust and the like can easily enter and adhere to the inside of the sheet, which is also one of the causes of powder contamination. Furthermore, it is preferable that the method of erecting or folding the frame on the pallet be simpler than the conventional method.

<Means for Solving the Problems> In order to solve the above problems, the inventors developed a method for supporting the bottom of the bag inside the frame, a method for sealing the powder inlet of the bag, and a method for assembling the frame. After conducting various studies regarding the structure, we finally came up with the present invention.

The collapsible container according to the present invention is a collapsible container in which a frame is set upright on a pallet, and a flexible bag for powder and granular material, which has an injection port in the upper part and a discharge port in the lower part, is hung on the frame. A cylindrical support net 2 is mounted on the container bottom frame 1, and the support net has a net ring 3 whose upper edge is inscribed in the bottom frame.
Then, the lower edge mesh is tied with a squeeze rope 5 led from the side of the bottom frame through a squeeze tube 4; the flexible bag body is provided with a neck ring part 32 containing a metal ring in the neck of the injection port, and This device is characterized in that it has a soft cap 34 that is attached to the neck ring via a rubber ring 33 attached to the peripheral edge.

An embodiment of the present invention will be described based on the drawings.
Fig. 1 is a perspective view of the container frame with the bag 31 removed from the container frame.The pallet 6 consists of square pipes assembled into a square bottom frame, to which main girders and horizontal beams are attached, and Legs 7 are fixed at the corners, and insertion members 8 for inserting forklift claws are attached to the left and right lower surfaces of the bottom frame corners. A stacking metal fitting 9 is attached to the bottom of each leg 7, a vertically elongated guide groove 10 is cut into the side plate of the leg, and a stopper groove 11 is cut vertically into the upper edge. A connecting rod storage fitting 12 is attached to the lower side of the container to store the connecting rod when the container is folded. Additionally, the side panels are reinforced with two semicircular rods joined at the center.

Next, the support net 2 is attached to the bottom frame,
This support net has a circular net ring 3 whose upper edge is made of a metal tube, and a cylindrical net whose lower edge is tied with a rope 5.
is fixed internally to the bottom frame by fitting into a support fitting provided on the inner wall of the bottom frame, and the aperture rope 5 passes through the aperture tube 4 to a rope receiving fitting 1 attached to the side of the bottom frame.
A hooking rubber band which is wound around the rope and attached to the end of the rope is hooked onto the rope receiving fitting to prevent it from loosening and coming off.
By pulling this squeeze rope from outside the bottom frame through the squeeze tube, the lower edge of the support net is squeezed and its inner periphery is reduced, and the net is stretched strongly and flat between it and the rope receiver. It's becoming like that. The net and rope are made of synthetic fibers such as polypropylene and polyester that have high tensile strength and shear strength, and the strongly stretched net is in contact with the bottom of the bag containing the powder and granules, so that it can sufficiently support the load. It's getting old.

The frame of the container consists of a pair of opposing side frames 14 and a connecting rod 15 that connects the upright side frames. Combined semicircular reinforcement 1
7, and the use of semicircular reinforcing materials gives the side frame rigidity and decorative beauty. A pin 18 is installed horizontally from the lower horizontal beam of the side frame and loosely fits into the guide groove 10 of the side plate, and a stopper pin 19 is protruded from the lower part of the column, and the stopper pin is fitted into the stopper groove 11 of the side plate. . Further, the bent end of the connecting rod 15 is fitted into a connecting rod receiver 20 provided at the upper part of the column, and the frame body is firmly fixed together with the stopper pin. Further, a hook 21 for hanging a bag hanging band is attached to the upper part of the support, and the upper end of the support is a pyramid-shaped stacking metal 22 suitable for stacking containers.

As shown in FIG. 2, the bag 31 that accommodates the powder is a cylindrical bag that is sized to be inscribed in the container frame, and the injection part is equipped with a hanging string 35 and a tightening band for tightening the injection cylinder. A soft injection barrel 37 having a diameter of 36 is attached, and a neck ring portion 32 containing a metal ring is provided at the neck of this injection barrel. Also,
A rubber ring 33 is attached to the periphery, and a cap 34 made of a circular soft material is attached to the shoulder of the bag with tape 38. After injecting powder and granules and tightening the injection tube with a band, the rubber ring of the cap is attached. Using tension, the injection tube is attached to the cervical ring part from above, and the injection part can be sealed. The bag body is made using tarpaulin, which is a synthetic fiber base cloth commonly used in flexible containers and coated with resin, rubber, etc.

A discharge tube 3 with a tightening band is provided at the bag discharge port.
9 is attached, the tightened discharge tube is pushed inside and a blind lid is applied from the outside, and one side of the covering piece 40 is attached to the outer bottom of the bag body so as to cover the blind lid, and the other side is secured with a hook-and-loop fastener. It's summery. Further, hanging bands 41 are attached to the four corners of the upper surface of the bag, and are hung on the hooks of the frame support.

In the above example, a bag made of tarpaulin is used, but of course, one-way (disposable) bags made of sheets of thin polypropylene tape, synthetic resin films, etc. are also applicable. Can be used for

<Operation> The procedure for assembling the folded container is to first tension the tension support net by pulling the squeeze rope, and then pull the folded side frame vertically.
At this time, as shown in FIG. 3, the side frame 14 uses the pin 18 loosely fitted in the guide groove 10 as a fulcrum, and the stopper pin 19 rotates along the quarter-circular curved edge of the side plate, and the stopper groove 11 It reaches the top, falls into the stopper groove under its own weight, and the side frame is erected. Then,
Pass the connecting rod between the pillars, hook the remaining suspension band of the bag body to the pillars to form the bag body, fill it with powder and granules in the same way as a normal flexible container, tighten the injection cylinder, and then open the cap. is attached to the cervical ring using rubber tension.

To take out the powder, the squeeze rope is loosened appropriately and the lower edge of the net is expanded. At this time, the bottom of the bag is supported by the net and has a mortar-like shape. Thereafter, the powder and granules are discharged by a conventional method. Since the bottom of the bag has a mortar-like shape, the powder and granules can be completely discharged without remaining in the corners.

After discharging the powder, remove the hanging band on one side frame of the bag, pull up the side frame, remove the stopper pin from the stopper groove, and fold the side frame by rotating it using the pin loosely fitted in the guide groove as a fulcrum. can.

<Effects of the invention> According to the invention, the container frame can be assembled and folded easily and quickly, all the powder and granules can be discharged without remaining in the container, and the powder and granule injection section Since the cap is sealed with rubber tension, there is no risk of contamination of the contents with dust, etc., and the overall operation is simple. Furthermore, since the container bag is supported by the support net and suspended within the frame, there is no risk of the cargo collapsing, and the stability of the forklift operation is excellent.

[Brief explanation of drawings]

Fig. 1 is a perspective view of the container in an upright state with the bag removed, Fig. 2 is a perspective view of the bag, and Fig. 3 is an explanatory view of the operation of erecting the frame. 1... Bottom frame, 2... Support net, 3... Net ring, 4... Squeezed pipe, 5... Squeezed rope, 7...
Leg body, 10... Guide groove, 11... Stopper groove,
14... Side frame, 15... Connecting rod, 18... Pin,
19...stopper pin, 21...latch fitting, 3
1...Bag body, 32...Cervical ring part, 33...Rubber ring, 34...Cap, 37...Injection tube, 39
...Discharge pipe, 41...Hanging band.

Claims (1)

[Scope of utility model registration request] A frame is set up on the pallet, and an injection port is placed on the top.
In a collapsible container in which a flexible bag for powder and granular materials with a discharge port provided at the bottom is hung on a frame, a cylindrical support net 2 is installed on the container bottom frame 1, and the support net has an upper edge attached to the bottom. A net ring 3 inscribed in the frame is used to overlock the lower edge mesh with a squeeze rope 5 led from the side of the bottom frame through a squeeze tube 4; A collapsible container characterized by having a built-in neck ring 32 and a soft cap 34 that is attached to the neck ring through a rubber ring 33 attached to the periphery.