JP4938543B2 - Manufacturing frame for bag and manufacturing method of bag - Google Patents

Description

  The present invention relates to a bag body manufacturing frame and a bag body manufacturing method for manufacturing a bag body containing a predetermined amount of filling material inside, which is used in a root hardening method and the like. The present invention relates to a bag manufacturing frame and a bag manufacturing method.

  Conventional manufacturing frames for bags include, for example, Japanese Patent Application Laid-Open No. 2005-240348 (Patent Document 1), Japanese Patent Application Laid-Open No. 2005-282277 (Patent Document 2), and Japanese Patent Application Laid-Open No. 2001-64933 (Patent Document). 3). According to Patent Document 1, the bag manufacturing frame includes a support frame including a bendable rectangular mesh sheet member and a frame body, and can be tackled or removed in a cylindrical shape.

  According to Patent Document 2, a bag body includes a mold installation step for installing a bag body formwork at a work site, a bag body placement step for placing a rooting construction bag body on the bag formwork, and a bag. Filling material filling process in which filling material is put into bag body for rooting construction method placed in body formwork, and mouth of rooting construction bag body where filling material is placed with mouth-drawing rope A mouth-squeezing step for tightening, an opening step for opening the formwork for the bag body in a direction away from the bag body for the rooting construction method, and a lifting for lifting and moving the bag body for the rooting construction method with the mouth part tightened It is manufactured through the process.

According to Patent Document 3, a bag placed in a frame is filled with a filling material and the opening is tightly bound, and then the frame is pulled upward to take out the bag body.
JP 2005-240348 A (summary) JP 2005-282277 A (summary) JP 2001-64933 A (summary)

  The conventional bag manufacturing frame is configured as described above, and the bag is manufactured as described above. In Patent Document 1 to Patent Document 3, when filling a bag with a filling material in a bag manufacturing frame, the bag body is expanded by the filling material, and pressure is applied to the side surface of the frame. Therefore, in patent documents 1 and 2, there was a problem that a bag cannot be taken out easily from a frame. Moreover, in patent document 3, there existed a problem that it was necessary to lift a bag body separately after removing a frame body while removing a frame body easily from a bag body.

  The present invention has been made in view of the above problems, and an object thereof is to provide a bag manufacturing frame and a bag manufacturing method that can easily manufacture a bag filled with filling material. To do.

  Another object of the present invention is to provide a bag body manufacturing frame and a bag body manufacturing method in which the bag is not easily damaged when filling with the filling material and taking out the bag body, and the bag body can be easily manufactured. It is to be.

  The bag manufacturing frame according to the present invention has an upper opening, a lower opening facing the upper opening, and a wall surface connecting the upper opening and the lower opening, and is capable of holding the bag inside. is there. The bag manufacturing frame is divided into a plurality of wall surfaces so that the upper opening is widened.

  Preferably, when the wall surface is divided into a plurality of parts, the lower opening is also divided and includes a connecting member that connects the divided lower openings to each other.

  More preferably, the opening area of the upper opening is larger than the opening area of the lower opening.

  The upper and lower openings are preferably circular or polygonal having four or more sides.

  In one embodiment of the present invention, each of the divided lower openings has an abutting portion that abuts each other, and the connecting member is provided in the abutting portion.

  In another aspect of the present invention, a method for manufacturing a bag filled with filling material includes an upper opening, a lower opening facing the upper opening, and a wall surface connecting the upper opening and the lower opening. The bag is held in a frame having the inside, the inside of the bag is filled with the filling material in the frame, the bag body is manufactured, and the bag body filled with the filling material is lifted from the top and taken out from the inside of the frame. Sometimes, the wall surface of the frame is divided into a plurality so that the upper opening is widened.

  The wall of the bag manufacturing frame is divided into a plurality of walls so that the upper opening is widened. Therefore, after making the bag body by filling the inside of the bag with the filling material, the wall is divided into a plurality of parts so that the upper opening is widened when the bag body is taken out from above. Easy to take out from.

  As a result, it is possible to provide a bag body manufacturing frame and a bag body manufacturing method capable of easily manufacturing a bag body filled with the filling material. Further, since the upper opening is widened at the time of taking out, the bag filled with the filling material is not easily damaged.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a view showing a bag body manufacturing frame 10 according to an embodiment of the present invention. Referring to FIG. 1, a bag manufacturing frame 10 has an inverted truncated cone shape having an upper opening 14, a lower opening 16 facing the upper opening 14, and a wall surface 13 connecting the upper and lower openings 14, 16. And frame bodies 11a and 11b that are divided so that the upper opening 14 spreads about the axis that is the center of the inverted frustoconical shape. Since the frames 11a and 11b have the same shape that is symmetrical with respect to the plane including the axis that is the center of the inverted truncated cone, only one of the frames 11a will be described below.

  The frame 11a includes a frame 12a serving as a framework thereof, and a sheet-like wall surface 13a attached to the inner surface of the frame 12a. The frame 12a has a semicircular upper frame 14a that becomes the upper opening 14, a semicircular lower frame 16a that becomes the lower opening 16, and a semicircular shape that reinforces the space between the upper frame 14a and the lower frame 16a. Intermediate frame 15a and a plurality of vertical frames 17a, 18a, 19a,... That connect between the upper frame 14a, the intermediate frame 15a, and the lower frame 16a. In addition, about the frame of the other frame 11b, b is attached to the reference number of the corresponding frame. In addition, the bottom part of the bag body manufacturing frame 10 is opened. Here, the frames 12a, 14a, 15a,... Are preferably made of steel pipes. The intermediate frame 15a may not be provided. Moreover, the bottom part does not need to be opened.

  In FIG. 1, the vertical frame 17 a of one frame 11 a and the vertical frame 17 b of the other frame 11 b are provided adjacent to each other, and their lower ends are connected by a lower connection member 25. Further, the vicinity of the upper end is also connected by the upper connecting member 23 and the spread preventing member 24 so that the upper opening 14 does not open when filling the filling material. The upper connecting member 23 includes U-shaped members 23a and 23b attached to the upper ends of the vertical frames 17a and 17b, and a rope 23c that connects the U-shaped members 23a and 23b. In this state, the rope 23c is tied so that the vertical frames 17a and 17b are adjacent to each other. The spread prevention member 24 is a rope provided at the lower part of the upper connecting member 23 and provided at each frame so as not to spread too much when the frames 11a and 11b are divided. Therefore, in this state, the rope is slack. The spread preventing member 24 may be attached to the U-shaped members 23a and 23b.

  FIG. 2 is a diagram showing details of the cross section of the wall surface 13. In the figure, the central axis of the bag manufacturing frame 10 is indicated by a one-dot chain line. The wall surface 13a is fixed to the upper frame 14a and the lower frame 16a, and is provided so as to cover the outer surface resin sheet 13aa facing the outer direction of the bag manufacturing frame 10 and the outer surface resin sheet 13aa, and only the upper end portion is provided. The inner resin sheet 13ab is fixed to the upper frame 14a and the lower end is not fixed. In this way, the frictional resistance with the bag body held inside is reduced, the friction with the bag body is also reduced, and the bag body can be easily taken out. Moreover, since it becomes moderate, the contact surface of a bag body and a resin sheet can be increased, and the burden to a net can be reduced. In addition, since the wall surface 13a has a double structure, the trouble of repairing at the time of damage is reduced. That is, when damaged by use, only the inner surface resin sheet 13ab needs to be replaced.

  However, not limited to the above, the wall surfaces 13a and 13b may be attached to the frames 12a and 12b by an arbitrary method.

  FIG. 3 is a view showing a state in which the bag 30a for holding the filling material is set inside the bag body manufacturing frame 10 shown in FIG. The bag 30a is net-like and has an opening capable of holding the filling material. As the filling material, stone and concrete are preferable, and the size is preferably about 50 mm to 200 mm. Here, the state before the filling material is filled is referred to as a bag 30a, and the bag after the filling material is filled is referred to as a bag body 30b.

  FIG. 4 is a view showing a state after filling the filling material 20 into the bag 30a with a heavy machine such as a backhoe (not shown) to create the bag body 30b.

  In this embodiment, since the bag manufacturing frame 10 has an inverted conical shape, the bag 30a is drawn into the bag manufacturing frame 10 when the bag 30a is filled with stones or the like, and the mesh of the bag 30a is the frame. As compared with the case of a rectangular parallelepiped shape, the filling material is naturally filled in the bag without unevenness, and workability is improved. Moreover, the bag body of a uniform container can be produced by manufacturing the capacity of the bag body manufacturing frame 10 in accordance with the target capacity of the bag 30a.

  Next, the bag 30a and the bag body 30b will be described. FIG. 5 is a diagram showing an example of the bag 30a. FIG. 5A is a front view of the bag 30a, showing a state in which the opening 34 is opened, and FIG. 5B is a perspective view of the bag body 30a as viewed obliquely from above. These are figures which show the state which produces and raises the bag body 30b.

  With reference to FIG. 5, in (A), the bag 30a is comprised by the net 31 which was mesh-like and was doubled. A suspension rope 32 is inserted in the vicinity of the opening 34 of the net 31. A mouth-drawing rope 33 used to squeeze the opening 34 is inserted under the suspension rope 32. In (B), in the vicinity of the opening 34 of the mesh 31, a suspension rope 32 is pulled out at an appropriate position on the circumference of the opening 34 to create suspension loops 32a to 32h for lifting the bag. Here, eight loops of suspension loops 32a to 32h are created.

  When the bag 30b filled with the filling material is lifted, the lifting loops 32a to 32h are lifted by the lifting hook portion 36 of the heavy machine via the lifting ring 35.

  The bag 30a is not limited to this, and any shape and form such as an inverted conical shape can be used. Moreover, it is preferable that the bag 30a is comprised with synthetic fibers, such as polyester, polyamide, a polypropylene.

  Next, the processing procedure of the bag body 30b prepared in this way will be described. FIG. 6 is a diagram illustrating a procedure for taking out the bag body 30b from the bag body manufacturing frame 10 in order. 6A is a view showing a state seen from the direction indicated by arrow A in FIG. 4, and FIGS. 6B to 6C are views showing a procedure for taking out the bag 30b.

  From the state shown in FIG. 6A, as shown in FIG. 6B, first, a plurality of suspension loops 32a to 32h provided in the opening 34 of the bag 30b are collected, and FIG. To the state shown in. Thereafter, these are hung on a hanging hook 36 such as a heavy machine. At this time, the frames 11 a and 11 b are integrated by the upper connecting member 23 and the spread preventing member 24.

  Next, as shown in FIG. 6C, the rope 23c of the upper connecting member 23 is removed, and the bag body 30b is lifted to the upper part of the bag manufacturing frame 10 by a heavy machine or the like. At this time, the bag body 30b comes into contact with the wall surfaces 13a and 13b of the frame bodies 11a and 11b and tries to lift the frame bodies 11a and 11b together. However, the frame bodies 11a and 11b are connected to the lower portion provided at the lower ends thereof. Since it is connected only by the part 25, it opens in the direction shown by the arrow B in FIG. As a result, the bag 30b can be easily taken out from the bag manufacturing frame 10.

  Since the spread preventing member 24 is provided, the two frames 11a and 11b do not open excessively. The spread preventing member 24 is not limited to a rope, and when the upper openings 14a and 14b of the two frames 11a and 11b are divided so as to spread, the upper opening can be prevented from spreading more than necessary. And if the connection can be easily cancelled | released at the time of lifting of the bag 30b, you may employ | adopt arbitrary structures including a chain.

  Next, the lower connection member 25 will be described. FIG. 7 is a diagram showing details of the lower connecting member 25. 7A is an enlarged view of the vicinity of the lower connecting member 25, and FIG. 7B is an arrow view seen from the direction indicated by the arrow B in FIG. 7A.

  Referring to FIG. 7, the joint portions of the vertical frames 17 a and 17 b and the lower frames 16 a and 16 b of the frames 11 a and 11 b adjacent to each other contact each other to form a contact portion. L-shaped members 26a and 26b are provided that extend outward and have raised portions at their ends. The lower connecting member 25 includes these adjacent L-shaped members 26a and 26b and a connecting ring 27 that connects both the L-shaped members 26a and 26b. The L-shaped members 26a and 26b and the connection ring 27 are preferably both made of a metal such as a shackle.

  Next, another example of the lower connection portion 25 will be described. FIG. 8 is a diagram illustrating another example of the lower connection portion 25. Referring to FIG. 8, the contact portions between the vertical frames 17a and 17b of the frames 11a and 11b and the lower frames 16a and 16b extend upward from the contact portions and are connected to the vertical frames 17a and 17b. U-shaped members 28a and 28b similar to the upper connecting member 23 are provided. The lower connecting member 25 includes these adjacent U-shaped members 28a and 28b and a connecting ring 29 that connects both the U-shaped members 28a and 28b. The U-shaped members 28a and 28b and the connecting ring 29 are preferably both made of metal.

  Next, still another example of the lower connection portion 25 will be described. FIG. 9 is a diagram illustrating still another example of the lower connection portion 25. (A) is an arrow view seen from the direction shown by arrow A in FIG. 4, (B) is an arrow view seen from the direction shown by arrow B in (A).

  Referring to FIG. 9, in this embodiment, the respective contact portions of the lower frames 16a and 16b of the frames 11a and 11b are provided with protrusions 41a and 41b that protrude radially outward from the contact portions. And overlapping plate portions 42a and 42b connected to the projecting portions 41a and 41b and extending from the respective projecting portions in the direction of the projecting portion on the other side and overlapping each other. A through hole is provided in the central portion of the overlapping plate portions 42a and 42b, and a bolt 43 is inserted into the through hole and tightened with a nut 44. The frame bodies 11a and 11b are centered on the bolt 43 and the nut 44 as shown in FIG. In (A), rotation is possible in the direction indicated by the arrow.

  Here, an example in which the overlapping plate portions 42a and 42b that overlap each other, and the bolts 43 and nuts 44 that pass through the through holes provided in the overlapping plate portions 42a and 42b protrude below the lower frame 16 of the bag body manufacturing frame 10 will be described. However, the present invention is not limited to this, and these may be provided above the lower frame 16. If it does so, the protrusion part to the outside will be lost and it is preferable.

  In the above-described embodiment, the bag manufacturing frame 10 is connected to the lower end portion and has an inverted truncated cone shape that can be divided into two parts. However, the present invention is not limited thereto, and the diameter of the upper opening 14 and the diameter of the lower opening 16. And may have the same cylindrical shape. In this case, the overall structure of the bag manufacturing frame is simplified.

  The shape of the bag manufacturing frame 10 is not limited to a cylindrical shape or an inverted truncated cone shape, but may be a polygonal shape having four or more sides, an inverted polygonal trapezoidal shape, and not limited to two divisions. It may be divided or divided.

  Next, another embodiment of the shape of the bag body manufacturing frame will be described. FIG. 10 is a perspective view showing another embodiment of the bag manufacturing frame. The bag manufacturing frame 50 shown in FIG. 10 includes opposing rectangular frames 51a and 51b provided at the center, and semi-cylindrical frames 52a and 52b provided on both sides thereof. The semi-cylindrical frames 52a and 52b are the same as those shown in FIG. These frames 51a, 51b, 52a, 52b are connected to each other by a connecting member 53 at their lower end portions. This connection portion 53 is the same as the connection portion 25. In this embodiment, the frames 51a and 51b are fixed, and the frames 52a and 52b are moved as indicated by arrows in the drawing so that the upper opening is widened. The frames 51a and 51b may also be moved to the outside.

  Next, still another embodiment of the shape of the bag manufacturing frame will be described. FIG. 11 is a plan view showing still another embodiment of the bag manufacturing frame. Referring to FIG. 11, in bag body manufacturing frame 60 according to this embodiment, three semi-cylindrical frames 61 a to 61 c are connected to each other by connecting portion 62 at the lower end thereof.

  In the bag body manufacturing frame 60, the three semi-cylindrical frames 61a to 61c are moved as indicated by arrows in the drawing so that the upper opening is widened.

  In the above embodiment, the example in which the lower connecting portion is configured by a member provided at the contact portion between the vertical frame and the lower frame and the connecting ring and the example configured by a bolt and a nut have been described. However, the present invention is not limited to this, and the lower end portions of the separable frames may have any configuration in which the upper portion can be opened and closed.

  Moreover, in the said embodiment, since the bag body was filled with the padding material such as stone, the example using the net-like bag was described. However, when the earth and sand are filled, the sheet-like bag is used. Also good.

  Moreover, in the said embodiment, although the case where the wall surface was used as the resin sheet was demonstrated, it is good also as metal plates, such as not only this but iron.

  Moreover, in the said embodiment, although the case where a bag body production frame was used for civil engineering works which used stone materials, earth and sand, etc. as a filling material was explained, it is not limited to this and is filled with grain, fertilizer, lime, etc. It may be used in some cases.

  As mentioned above, although embodiment of this invention was described with reference to drawings, this invention is not limited to the thing of embodiment shown in figure. Various modifications and variations can be made to the illustrated embodiment within the same range or equivalent range as the present invention.

  The bag body manufacturing frame according to the present invention can be advantageously used as a bag body manufacturing frame because the bag body filled with the filling material manufactured therein can be easily taken out.

It is a perspective view which shows the bag body manufacturing frame which concerns on one embodiment of this invention. It is a figure which shows the detail of the cross section of a wall surface. It is a figure which shows the state which set the bag body to the bag body manufacturing frame shown in FIG. It is a figure which shows the state which injected the filling material in the bag shown in FIG. It is a figure which shows an example of a bag. It is a figure which shows the procedure which manufactures a bag body by a bag body manufacturing frame. It is a figure which shows the detail of an example of a lower connection member. It is a figure which shows the detail of the other example of a lower connection member. It is a figure which shows the detail of the further another example of a lower connection member. It is a schematic diagram which shows the other example of a bag body manufacturing frame. It is a top view which shows the other example of a bag body manufacturing frame.

Explanation of symbols

10, 50, 60 Bag body frame, 11 frame, 12 frame, 13 wall surface, 14 upper frame, 15 intermediate frame, 16 lower frame, 17, 18, 19 vertical frame, 20 filling material, 23 upper connecting member, 24 spread prevention member, 25 lower connection member, 30a bag, 30b bag body.

Claims (5)

A bag manufacturing frame having an upper opening, a lower opening facing the upper opening, and a wall surface connecting the upper opening and the lower opening, and is capable of holding a bag inside. And
The wall surface is divided into a plurality so that the upper opening extends,
When the wall surface is divided into a plurality of parts, the lower opening is also divided, and includes a connecting member that connects the plurality of divided lower openings to each other.
Production frame for bags. The bag manufacturing frame according to claim 1, wherein an opening area of the upper opening is larger than an opening area of the lower opening. The manufacturing frame for a bag according to claim 1 or 2, wherein the upper and lower openings are circular or polygonal having four or more sides. Each of the lower openings divided into a plurality has contact portions that contact each other,
The said connection member is a manufacturing frame for bag bodies in any one of Claims 1-3 provided in the said contact part. Holding the bag in a frame having an upper opening, a lower opening facing the upper opening, and a wall surface connecting the upper opening and the lower opening;
When the wall surface is divided into a plurality of parts, the lower opening is also divided, and the divided lower openings are connected to each other by a connecting member,
Inside the frame, the bag is made by filling the inside of the bag with filling material,
A method of manufacturing a bag body filled with filling material, wherein the wall surface of the frame is divided into a plurality of portions so that the upper opening is widened when the bag body filled with filling material is lifted from the upper part and taken out from the frame.

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