JP4171494B2 - Sandbag manufacturing equipment - Google Patents

Description

  The present invention relates to an apparatus for manufacturing a sandbag (sac) that is filled with soil, sand, plastic granules or the like.

  Conventionally, a method of using a machine such as a conveyor for carrying out bagging of sandbags by hand is known.

  Conventionally, when sandbags are packed by hand only, the number of bags per person per day is limited to several tens of bags, and even if a machine such as a conveyor is used, it is limited to several times. Was also uneconomical.

  The apparatus of the present invention for solving the above-mentioned problems is configured by forming a single support frame 3 by integrally connecting a plurality of cylindrical partition frames 1 that are open at the upper end and into which a sandbag W is inserted. The upper end of each partition frame 1 is provided with an opening frame 2 that folds and locks the opening of the sandbag W inserted into the partition frame 1 and holds it in an open state. A flat earth receiving cover 10 placed on the support frame 3 is provided so as to cover the adjacent gaps, and the earth receiving cover 10 corresponds to each opening frame 2 in a state of being placed on the support frame 3. It is characterized in that a charging hole 11 and a guide 12 that protrudes downward from the outer periphery of the charging hole 11 and is inserted into the opening frame 2 to hold the sandbag W in an open state are provided.

  According to the present invention configured as described above, the amount of bagging per person per day when bagging is performed by hand only is limited to several tens of bags per day, and even if a machine such as a conveyor is used, Although the limit is several times, according to the means of the present invention, there are significant advantages both in terms of cost and efficiency.

  Use a backhoe, etc., to drop and supply soil, sand, etc. to the top surface of the soil cover, and drop the soil into all soil bags while leveling the top surface with a leveling bar. Can be filled. At this time, the amount of earth filled in each bag is made substantially uniform by leveling with a leveling bar or the like.

  An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing a use state of a sandbag manufacturing apparatus. In this example, five cylindrical partition frames 1 having a square section with a predetermined height (corresponding to the height of a sandbag) having a pyramid or trapezoidal peripheral wall having a large diameter at the bottom and a small diameter at the top, A total of 10 rows are formed in a row, and a bowl-shaped opening frame 2 that removably supports the opening of the sandbag W is formed at the upper end of each partition frame 1 to form a rectangular assembly as a whole. In such a manner, a single block-like support frame 3 is formed in an integrated manner, and the four support frames 3 are connected to each other at a central portion so that they can be disassembled and assembled via a connecting member 9 or the like described later. In total, 40 partition frames 1 are formed by joining them, and the sandbags W corresponding to the number of the partition frames 1 can be packed and manufactured at a time.

As shown in FIG. 7, the partition frame 1 inserts a sandbag W from above and accommodates it in an upright position, and abuts against the circumferential surface of the sandbag W when packed in a soiled state or in a packed state so as to be positioned horizontally and A vertically long shape is maintained.
The opening frame 2 is for locking the opening of the earthen bag W inserted in the partition frame 1 so as to be folded and wound around the string W1 for squeezing provided on the opening on the outside. The opening is held in an open state during the earth filling operation.

2 to 6 show the main structural members of the manufacturing apparatus and the detailed structure at the time of assembly. In this example, the support frame 3 is configured by first dividing each partition frame 1 into a frame structure with partition plates 5 and 6 in the horizontal and vertical directions. At the same time, the outer periphery is surrounded by an outer frame 7.
That is, the partition plates 5 and 6 are formed in a V-shaped cross section in which the lower ends of the two plate-like bodies are joined and the upper part is expanded, and the horizontal partition plate 5 has a longitudinal direction intersecting with this. A plurality of V-shaped notch grooves 5a that match the V-shaped cross section of the partition plate 6 are formed at a depth of about ½ of the height width, and the vertical partition plate is erected in parallel at a predetermined interval 6, when the partition plate 6 in the vertical direction is inserted into the notch grooves 5 a from the upper end side, the V-shaped notch groove 6 a closed at the upper end has a plurality of notches at a depth of about ½ of the height width. Is formed.

Thus, when the partition plates 5 and 6 are combined by combining the notch grooves 5a and 6a, the partition frame 1 is assembled while a large number of vertical and horizontal partitions are assembled and a large number of grid-like opening frames 2 are formed. It is formed.
At this time, the partition plates 5 and 6 are assembled at the same height so as to intersect with each other, and the support frame 3 in the assembled state can form the partition frame 1 in a trapezoidal cylinder.

The outer frame 7 is assembled in the above-described manner into a casing frame size that is fitted and joined from above to the outer ends of the horizontal and vertical partition plates 5 and 6 that are rectangular (or square) as a whole. Forming.
The outer frame 7 has a rigid structure as the block-shaped support frame 3 by fixing the joint end portions by appropriate means in a state where the combined partition plates 5 and 6 are fitted inside. In addition to forming an easy outline, ribs 7a and 7b are formed on the upper and lower ends of the side wall of the outer frame 7 so as to protrude toward the outer periphery.

At this time, the rib 7a at the upper end is formed flush with the cover plate 8 described later, and the rib 7b at the lower end is formed in a block shape on both sides of the corner portion where the plurality of support frames 3 are connected by the connecting members 9. The connecting portion 70 is formed in a rib width with a predetermined height and length, and an appropriate number of mounting holes 71 penetrating horizontally are provided in the connecting portion 70.
And the connection part 70 of the said adjacent support frame 3 inserts the connection hole 91 and the attachment screw 92 which were formed in the center connection tool 90, and is connected, so that the adjacent support frame 3 is the same height. In this way, it is possible to connect them stably so that the production of the sandbag can be performed satisfactorily.

Further, the opening edge of each opening frame 2 in the support frame 3 is not continuous with that of the adjacent opening frame 2 (that is, each opening frame 2 is separated from the adjacent opening frame to form an independent mesh. ) A recessed portion 1 a is formed in the adjacent gap portion of the opening frame 2.
That is, each adjacent gap portion of the opening frame 2 that crosses the opening frame 2 in the vertical and horizontal directions is a lower end portion of the opening frame 2 (upper end portion of the partition frame 1). The hole which fits the outer periphery of the opening frame 2 is formed.) It is dropped and closed so that it may fit.
As a result, the fall of soil or the like into the V-shaped groove between the adjacent partition frames 1 is prevented, and each partition frame 1 is connected and fixed to the adjacent partition frame 1 at the upper end while being accurately positioned and positioned. Will be.

Further, when the cover plate 8 is provided, a suspension 30 that can stably lift the support frame 3 is installed at the center of the support frame 3.
That is, as shown in FIG. 5, the suspending portion 30 in the present embodiment is formed of a plate-like piece having a suspending hole 31, and in the middle portion of the adjacent partition frames 1 at the central portion of the support frame 3 in plan view. The suspension hole 31 is embedded and fixed with a rigid structure while projecting upward from the cover plate 8. As a result, when the rope 30a or the like is locked to the suspension hole 31 of the suspension portion 30 and lifted upward by the lifting portion 21 of the work machine 20 such as a crane, the support frame 3 lifts the center of gravity portion stably and easily at one point. It is something that can be done.

Reference numeral 10 denotes a plate-shaped earth receiving cover that is detachably placed on the opening frame 2 of the support frame 3. The earth receiving cover 10 is provided on the outer periphery of the upper end of the support frame 3 during a bagging operation described later. A square insertion hole 11 is formed only in a portion corresponding to the inner periphery of each opening frame 2 so as to cover the adjacent gap of the opening frame 2. A hook-shaped guide 12 to be fitted and inserted protrudes downward.
Further, when the earth receiving cover 10 is placed on the support frame 3 having the hanging portion 30 described above, a through-hole 15 through which the hanging portion 30 passes and protrudes at a position corresponding to the hanging portion 30 is appropriately formed. Yes.
The earth receiving cover 10 is preferably formed in a single unit for each size of each support frame 3, but may be of a size that covers the entire connected support frame 3.

Next, the structure of the connecting member 9 and the connecting means for the adjacent support frames 3... Will be described with reference to FIG.
The connecting member 9 has a cross-shaped lower connecting tool 90 and an upper connecting tool 95 that connect the center side of the sandbag manufacturing apparatus when assembling the plurality of support frames 3, and the support frames 3, 3. And a flat plate-like connecting plate 97 that connects the outside of the two.

The lower connecting member 90 is fitted into the concave groove 90a formed in a cross with an upward U-shaped cross section by joining the mounting portions 70, 70 formed at the corner portions of the adjacent support frames 3, 3 to each other. In the state, by inserting and fastening the attachment screws 92 into the attachment holes 91 of the connecting pieces 93, 93 erected on both sides of the concave groove 90 a and the attachment holes 71 of the support frame 3, each support at the lower center of the manufacturing apparatus is supported. The frame 3 is integrally and firmly connected and fixed.
The mounting screw 92 comprises a male screw shaft 92a and a female screw shaft 92b formed in a round head, and the head is lowered so as not to damage the soil bag W.

The upper coupling member 95 is formed in a cross shape having a coupling surface substantially the same as the width of the ribs 7a and 7a of the adjacent support frames 3, and corresponds to a plurality of mounting holes 72 drilled in the rib 7a. A mounting hole 95a for inserting the mounting bolt 94 is formed in the part, and eight mounting pieces 96 having screw holes 96a into which the mounting bolt 94 is screwed are provided.
Thereby, in a state where the adjacent ribs 7a and 7a are inserted between the connection tool 95 and the attachment piece 96, the attachment bolt 94 is inserted and the connection tool 95 and the attachment piece 96 are fastened. The upper part of the support frame 3 can be connected and fixed easily and firmly at the center.
Further, in the state where the support frame 3 is connected as described above, the connecting plate 97 is fastened to the mounting hole 75 formed in the outer side surface on the joint side of the support frames 3 by the mounting screw 97a and the nut 97b. Thus, the outsides of the adjacent support frames 3 are firmly connected.

By the above mechanism, the sandbag manufacturing apparatus is configured to be disassembled and assembled together with the support frame 3 and the soil receiving cover 10, each component is carried to the site in a disassembled state, and after the sandbag manufacturing operation described below is completed after the site assembly is completed again. It has features such as being able to be disassembled and stored or transported.
The above-mentioned sandbag manufacturing apparatus, for example, integrally fixes the support frame 3 by means such as welding of the partition plates 5 and 6 and the cover plate 8 and the outer frame 7 or the like made of iron plate or made of FRP or bonding, or the entire support frame 3 is fixed. It is also possible to form by combining a large number of cylindrical partition frames that are integrally molded with a plastic material or divided and plastic molded.

Next, the suspension device 50 will be described with reference to FIGS.
This suspension device 50 is lifted by hanging a sandbag W manufactured by the above-described sandbag manufacturing device through a suspension string W1 in the following configuration, and is loaded and unloaded on a loading platform such as a truck. It is transported to a place so that it can be transferred, and at this time, the string is not broken.
That is, as shown in FIG. 10, the suspension device 50 includes a suspension rod (beam) 51 formed of a pipe having a cylindrical cross section, and the beam 51 below the center line P on the other side of the outer strap. And a locking portion 52 projecting downward in a radial direction at a position biased to the side. In the illustrated example, it is locked to the locking portion 52 through the upper side of the beam 51 from the string-hanging side and wound around in a detour shape. A positioning restriction piece 53 for restricting slack of the string W1 is attached to the top (upper side) of the outer periphery of the beam 51.

The locking portion 52 is formed with a large-diameter string detachment preventing projection 52a on a pin-like head projecting downward. The restricting piece 53 has a base portion fixed to the beam 51 by means such as welding so that a round bar-shaped tip portion expands upward to become a free end.
As a result, in the state where the string W1 of the sandbag W is wound around the beam 51 from the stringing side, the loop part can be easily locked by being fitted into the locking part 52, and the locked state can be achieved. A string W1 can be positioned so as to prevent loosening and movement with a narrowed positioning portion 53a formed between the restricting piece 53 and the beam 51, and can be hung upward and easily and accurately. In the state where the sandbag W is suspended, it is possible to satisfactorily prevent breakage of the string W1 that is detoured around the top of the beam 51 and is locked to the locking part 52.

The hanging device 50 corresponds to the support frame 3 for manufacturing 32 bags in which four opening frames 2 of the sandbag manufacturing apparatus shown in FIG. 8C are integrally arranged in the vertical direction and eight in the horizontal direction. By configuring as above, the produced sandbags W for 32 bags can be suspended and moved as shown in FIG.
That is, as shown in FIG. 8 (A), the suspension device 50 connects the pipe-shaped four beams 51, 51,.. The frame (horizontal frame) 55 is connected to each other so as to form a rectangular frame in plan view, and at the position corresponding to the center of each opening frame 2 along the slimming of each beam 51, the above-described locking portion 52 is provided. And the regulating piece 53 are provided in pairs.

In addition, a plurality of pedestals 56 that can be placed as legs on the soil-filled bags W are provided at predetermined equal intervals from the center in the lateral direction at the lower portions on both sides of each framed beam 51, The pedestal 56 is provided with a suspending portion 57 that can hold a suspending tool 30b such as a rope or a crane hook at a predetermined equal interval from the central portion in the vertical direction.
That is, the pedestal 56 in the example shown in the figure can suspend a large number of soil bags W stably and accurately by using both the reinforcing frame that connects the beams 51 from below and the suspending portion 57 inside the frame body. It is possible to provide a suspension device 50 that can be manufactured at a low cost with a simple configuration having high rigidity.

The pedestal 56 is used by placing it on the shoulder of the sandbag W, thereby forming a pedestal height stringing space (pedestal space) between the sandbag W and the beam 51. W1 can be freely handled, and it is possible to easily perform the stringing to the locking portion 52.
Reference numeral 57a denotes a suspension hole as a suspension portion. When this suspension hole 57a is used, it is preferable to lift it using a shackle or the like.

The hanging device 50 in the illustrated example projects the locking portion 52 toward the inner side with respect to the two beams 51 on the near side, thereby setting the outer side to the strapping side, and the two on the left side. Also with respect to the beam 51, the locking portion 52 is protruded inward so that the outer side becomes the string side.
Thereby, the operator can easily lock the loop portion of the string W1 for each sandbag W from the outside on both sides of the manufactured sandbag group, to the locking portion 52. Without being hindered, the string W1 on the sandbag W can be lifted upward through the string hooking space and can be easily fitted and locked to the locking part 52 while being inserted into the positioning part 53a through the beam 51. Is. If the string W1 locked at that time is pulled down to remove the slack, the string W1 is regulated by the regulating piece 53 in this state and does not loosen upward. It can be lifted well while being prevented from accidentally leaving.

When the hanging device 50 is lifted by the work machine 20 via the hanging tool 30b and the hook 21 and the weight of the sandbag W is applied to the string W1, the string W1 is wound on the locking portion 52 in a state of being wound around the beam 51. In this case, the weight of the sandbag W is dispersed and hung on the middle portion of the string wound around the beam 51 and the loop portion locked on the locking portion 52.
At this time, since the string W1 is sufficiently wound around the beam 51, the force applied to the middle part of the string W1 is distributed and supported by the winding allowance of the beam 51. Therefore, the force applied to the loop portion locked to the loop portion can be reduced, and the concentrated load applied to the loop portion of the string W1 can be suppressed, and the breakage of this portion can be prevented well.

Further, even when the sandbag W is moved up and down and transported, the beam 51 is not directly applied to the loop portion of the string W1 locked to the locking portion 52, without applying the swinging load accompanying the swing. There is an advantage that it is possible to disperse the frictional force of the wrapping allowance and to prevent the breakage of the string.
The direction of the restricting piece 53 is not limited to that of the illustrated example, and the two front beams 51 may be provided to the right, and the two rear beams 51 may be provided to the left.

Next, a sandbag manufacturing work and a sandbag lifting work by a sandbag manufacturing apparatus in which a plurality of support frames 3 are connected by a connecting member 9 will be described.
As described with reference to FIGS. 1 to 6, with respect to the apparatus placed on a flat surface such as the ground and assembled with the support frame 3, first, as shown in FIG. The opening end of the partition frame 1 is folded back and locked together with the string W1, and the earth receiving cover 10 is placed on the opening frame 2 to place the adjacent partition frame. Covering the gap between 1 and pressing and fixing the bag W.

Next, for example, using an excavator 22 of a work machine such as a backhoe, earth 23 such as soil or sand is dropped and supplied to the upper surface of the earth receiving cover 10, and the upper surface is leveled horizontally with a leveling rod 24 or the like. However, the earth 23 is dropped and filled in all the soil bags W.
At this time, the filling amount of the earth 23 in each bag W is made substantially uniform by leveling with the leveling rod 24 or the like.
On the other hand, the bag W is pressed in a state along the inner peripheral wall of each partition frame 1 by the introduced earth pressure, and the bottom is supported and held on the ground or the floor surface.

  Subsequently, after the earth receiving cover 10 is lifted or manually lifted and removed from the support frame 3, the opening end of each bag W is removed from the opening frame 2, and then the support frame 3 is lifted using a wire rope 30a or the like. As shown in FIG. 9A, the filled sandbags W are left on the floor in a state of being aligned along the grids of the partition frame 1 of the support frame 3.

The sandbags W arranged in an aligned manner as described above draw out the string W1 of every bag W arranged in a row, in each divided block, or in all the arranged arrangements to narrow the bag opening, and the string under the opening. The manufacture of the sandbag W is completed by winding and fixing the appropriate number of times with W1.
Then, the suspension device 50 is placed on the manufactured sandbag W group via the pedestal 56 as shown in FIG. 9A, and the looped string W1 is suspended as described above. After hooking each locking portion 52 of the device 50, the earthen bag W can be lifted by lifting the suspension device 50 via the hanging tool 30 b using the work machine 20.

Therefore, the suspension device 50 can be easily and efficiently moved by hooking the strings W1 of the many sandbags W manufactured and arranged in a line to the hooks 54 by the number of the suspension tools 55 and lifting them all at once. .
In addition, it is preferable to provide the same number of the suspension tools 55 installed in the suspension device 50 as the partition frame 1 of the support frame 3. However, when the lifting weight is excessive, the suspension tool 55 is attached to the above-mentioned number. It is advisable to provide only a fraction and repeat the lifting operation an appropriate number of times. Moreover, the length of the hanging tool 55 is preferably set to a sufficient length so that the worker can freely perform the bag hanging work on the side or below the hanging device 50.

The sandbag W suspended in this manner can be transferred to a conveying means such as a truck or a freight car, or can be transported and arranged at a predetermined location for each suspension device 50 easily and at once. Can be removed from the locking portion 52 and placed down in order.
In addition, the sandbags W that are arranged and transported to the construction site in an aligned state are lifted up again by a hanging device 50 every predetermined number, unloaded at the construction position, and then piled up just by repositioning. Etc. can be performed easily.

In this case, the hanging apparatus 50 including the four beams 51 in the illustrated example can easily and desirably perform the following side-by-side down operation or stacking down operation.
That is, the suspending device 50 moves the work implement 20 laterally in a state where 32 bags of sandbags W are suspended, and moves the eight bags of sandbags W suspended for each beam 51 from the outer side to the inner side. And alternately arranged in the horizontal direction, it is possible to easily perform the work of arranging and arranging the sandbags W for 32 bags side by side in an efficient and orderly manner without carrying them manually.
Further, the stacking operation is performed on the soil bag W for 8 bags by lowering the center of gravity of the suspension device 50 for each beam 51 on both outer sides at the fixed position of the work machine 20 without increasing the center of gravity of the suspension device 50 in the same manner as described above. The sandbags W of the next beam 51 can be stacked in an orderly and efficient manner.

  According to the manufacturing and hanging means of the earthen bag W configured as described above, from bagging to transporting, unloading, and earthing work, heavy work such as carrying and lifting the earthen bag W directly by hand is not involved. In addition to the advantage of being able to work on the construction site, it is generally used at civil engineering construction sites if it uses a construction machine that combines the function of dropping and supplying soil to the soil bag, such as backhoes and excavator heavy machinery, and the function of lifting luggage. When carrying out bagging from a bagging operation to a loading operation or a civil engineering work site with a single machine, there is an advantage that it is possible to perform from the bagging operation to the claying operation.

  Incidentally, the number of bags per person per day when bagging is carried out by hand only in the past is limited to several dozen bags, and even if a machine such as a conveyor is used, the number is several times the limit. Can pack thousands of bags a day, and has great advantages both in terms of cost and efficiency.

  The hanging device 50 is not limited to the sandbag W manufactured by the above-described sandbag manufacturing apparatus, but is applied to the sandbag W manufactured by the support frame remaining type sandbag manufacturing apparatus shown in FIGS. Can be used in the same manner, and can also be used satisfactorily in a sandbag W manufactured by conventional manual bagging means. The suspension device 50 can be used well for any object (suspended object) suspended by a string in addition to a sandbag. In this case, the string is a rope, a belt, A wire etc. may be sufficient.

Further, the support frame 3 of the sandbag manufacturing apparatus shown in the figure has a structure in which a plurality of support frames 3 can be connected and assembled by the same configuration of the connecting means as in the above-described embodiment. A suitable number of partition frames 1 having a small diameter on the lower side and a large diameter on the upper side are formed on the inner side of 7 by the same arrangement as that of the above embodiment.
And the opening frame board 2a which has many input ports 11a in the upper part of the support frame 3 is formed in the same magnitude | size as the support frame 3, and is installed so that attachment or detachment is possible. The introduction port 11a is opposed to the central portion of each partition frame 1 and forms an opening frame 2 for bag locking that stands upward around the partition frame 1.

Moreover, the earth receiving cover 10 which formed the insertion port 11 which positions and fixes the sandbag W similarly to the said embodiment is installed in the upper part of the said opening frame board 2a so that attachment or detachment is possible.
In the manufacturing operation of the sandbag by the support frame 3, the earth receiving cover 10 is placed from above with the opening of the sandbag W fitted in the partition frame 1 locked to the opening frame 2 of the opening frame plate 2a. Thus, the opening is fixed, and the soil 23 is filled and supplied into the soil bag W from the insertion port 11. Next, after removing the earth receiving cover 10 and the opening frame 2a, the string W1 is tied and the opening is closed. Then, as described above, the sandbags W can be lifted using the hanging device 50 and taken out at once.

According to this embodiment, when the sandbag W is lifted, the sandbag W is stored in the support frame 3 without removing the support frame 3 as in the embodiment of the sandbag manufacturing apparatus described above. Therefore, it is possible to easily and efficiently carry out sandbag manufacturing and removal work.
Moreover, the operation | work which takes out the sandbag W manufactured with this sandbag manufacturing apparatus using the suspension apparatus 50 is the state which mounted the base 56 on the support frame 3 in which the suspension apparatus 50 was left, and was supported in the stable attitude | position. In this case, there is an advantage that a stringing space can be formed and the beam 51 and the locking part 52 can be satisfactorily hooked.

It is a perspective view which shows the whole structure of a sandbag manufacturing apparatus. (A) and (B) are the side view and end view of a vertical partition plate. (A) and (B) are the side view and end view of a horizontal partition plate. It is a perspective view of an outer frame. It is a perspective view which shows the assembly structure of a support frame. (A) is a perspective view of the parts which comprise a support frame, (B) is sectional drawing which shows the connection structure of the adjacent support frame, (C) is a perspective view of an attachment screw. It is an expanded sectional view which shows the manufacturing method of the sandbag with a support frame. (A) is a perspective view of a suspension device, (B) is a perspective view of a soil receiving cover, and (C) is a perspective view of a support frame. (A) is a perspective view which shows the stringing operation | work of a suspending device, (B) is a perspective view which shows the suspending operation | work of the soil bag by a suspending device. (A) is a perspective view of the principal part which shows the structure of a suspension apparatus, (B) is a sectional side view of (A). It is a side view which partially fractures and shows the bagging operation | work by another sandbag manufacturing apparatus. It is a side view which shows partially the state which hangs the bag of the sandbag bag packed by the sandbag manufacturing apparatus shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Partition frame 2 Opening frame 3 Support frame 5,6 Partition plate 7 Partition plate (side cover)
10 Earth Cover 23 Earth 50 Suspension Device 51 Suspension Beam
52 Locking part 53 Restricting piece 53a Positioning part 56 Base 57 Hanging part W Soil bag (suspended object)
W1 string

Claims (1)

  A plurality of cylindrical partition frames (1) having an open upper end and having a sandbag (W) inserted thereinto are integrally connected to form a single support frame (3), and each partition frame (1) Is provided with an opening frame (2) that folds and locks the opening of the sandbag (W) inserted into the partition frame (1) and holds it in an open state. ) Is provided with a plate-like earth receiving cover (10) placed on the support frame (3) so as to cover the adjacent gap between them, and the earth receiving cover (10) is placed on the support frame (3). In this state, the opening holes (11) corresponding to the respective opening frames (2), and projecting downward on the outer periphery of the insertion holes (11), are inserted into the opening frame (2) to open the sandbags (W). A sandbag manufacturing apparatus provided with a guide (12) to be held in a state.

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