JP2020084667A - Inflatable bag body connector and inflatable bag body connected by connector - Google Patents

Abstract

To keep inflatable bag bodies in proper overlap with each other so that overlapping positions of the inflatable bag bodies do not shift when installing a plurality of inflatable bag bodies that are inflated by injecting a filler into gaps between civil engineering structures, etc.SOLUTION: In an inflatable bag connector for connecting a plurality of inflatable bag bodies 20 that inject and inflate a filler X so as to overlap each other, a tubular portion 10 that holds the inflatable bag body 20 after inflation by inserting the inflatable bag body 20 into which the filler X is injected and inflated are arranged so as to overlap in one direction, and a connector 11 for connecting the tubular portions 10 with a required width along the axial direction of the tubular portions 10 is provided at a portion where the tubular portions 10 overlap each other.SELECTED DRAWING: Figure 2

Description

TECHNICAL FIELD The present invention relates to an inflatable bag connector for connecting a plurality of inflatable bag members that are inflated by injecting a filler such as water or cement so as to overlap each other, and an inflatable bag member connected by the connector. .. In particular, install a plurality of inflatable bags that inject and inflate a filler such as water or cement into the gaps between civil engineering structures or the gaps between civil engineering structures and the ground. In this regard, it is characterized in that it is possible to maintain the respective inflation bag bodies in a state of being appropriately overlapped with each other so that the overlapping positions of the inflated inflation bag bodies do not shift.

Conventionally, as shown in Patent Document 1, an expansion bag body for injecting and expanding a filler such as water or cement is provided in a gap portion such as a gap between civil engineering structures or a gap between the civil engineering structures and the ground. Is installed in the inflatable bag body, and a filler such as water or cement is injected into the inflatable bag body to inflate the inflatable bag body to be used as a filling material for the gap. As mentioned above, there is a proposal in which a tube for injecting air is housed in an outer bag, inserted into the gap as described above, and inflated by injecting air into the tube and used as an air jack. Has been done.

Here, the above-mentioned gap may become larger than expected due to the reason that the civil engineering structure could not be installed at a predetermined position, and in this case, in the above-mentioned one inflatable bag body. There is a limit to the amount of expansion just by injecting the filler and expanding it, and it may not be possible to sufficiently fill such a large gap.

In such a case, in the past, a new expansion bag body or wood was prepared as a filling material, and these were packed in a gap portion that could not be sufficiently filled with one expansion bag body. It corresponded.

However, since it is necessary to check the gap that could not be filled sufficiently and to prepare a new filling material corresponding to this gap and fill it in the gap portion, the construction period becomes longer. There was a problem.

In addition, it is possible to prepare an inflatable bag with a large size in advance so that it can be used even if there is a large gap between civil engineering structures, etc. Even if it is not possible to install it in the appropriate position or if the expansion bag can be installed in the gap, the filler such as mortar will be injected into the surplus part of the large expansion bag, which will increase the cost. There was a problem such as leading to.

In addition, when the gap between the civil engineering structures or the gap between the civil engineering structures and the ground is large, it is conceivable to stack two or more inflatable bags on top and bottom, but inject the filler into the inflatable bags. When inflated, the cross-sectional shape of the inflated inflatable bag body becomes an elliptical shape. Therefore, in the state where the inflated inflatable bag bodies are stacked, the mutual stability of the inflatable bag bodies becomes extremely poor, and, for example, When two expansion bags are placed in the above-mentioned gap portion in a state of being overlapped and the filler is injected into each expansion bag to expand, the cross-sectional shape of each expansion bag becomes elliptical and overlaps. The two inflatable bags in the closed state slide sideways, the upper and lower overlapping states of the inflatable bags collapse, the desired bulge height cannot be obtained, and the above-mentioned gap cannot be sufficiently filled. was there.

JP 2001-295598 A Registered utility model No. 3026155

INDUSTRIAL APPLICABILITY The present invention is installed such that a plurality of inflatable bag bodies for injecting a filler such as water or cement to inflate and inflate it in a gap portion such as a gap between civil engineering structures or a gap between civil engineering structures and the ground are stacked In this case, it is an object of the present invention to maintain the inflated bag bodies in a state of being appropriately overlapped with each other so that the overlapping positions of the inflated bag bodies do not shift.

In the inflatable bag connector of the present invention, in order to solve the above-mentioned problems, inflatable bag connector in which a plurality of inflatable bag members for injecting and inflating a filling material are connected so as to overlap each other. Insert an expansion bag that is inflated by injecting material, and arrange a plurality of tubular parts that hold the expanded bag after inflation so that they overlap in one direction, and at the parts where the tubular parts overlap each other. A connecting portion for connecting the tubular portions is provided with a required width along the axial direction of the tubular portions.

Here, in such an inflatable bag connector, as described above, a connecting portion that connects the tubular portions with a required width along the axial direction of the tubular portions is provided at the portion where the tubular portions overlap. When the expansion bag body is inserted into each of the tubular portions that have been expanded, and the expansion bag body is inflated by injecting the filler into each of the inflation bag bodies, the outer peripheral surface of the expanded inflation bag body in each tubular portion is The expansion bags are inflated in close contact with the inner peripheral surface of the tubular portion, and the inflatable bag bodies inflated in the tubular portions are flat by the connecting portion connecting the tubular portions with a required width. It comes into contact with each other, and it is possible to prevent the inflated bag bodies inflated in the respective tubular parts from being displaced from each other.
In addition, when holding an expansion bag with a long axial direction, by making the axial direction of each tubular part also long, the long expansion bag is inserted into each tubular part and filled into the expansion bag. When the material is injected to inflate the inflatable bag body, it is possible to suppress the axial position of the inflated inflatable bag body from being displaced in each tubular portion.
In addition, in the case of holding an expansion bag having a long axial direction, it is possible to use a plurality of connecting members each having a tubular portion having a required width in the length direction of the expansion bag, and to provide them at required intervals. .

Then, in such an inflatable bag connector, when arranging the plurality of tubular portions so as to overlap in one direction, for example, in the vertical direction, the number of tubular portions is not particularly limited as long as it is two or more. A large number of tubular portions can be arranged so as to overlap each other in the vertical direction.

In addition, in the inflatable bag connector according to the present invention, the inflatable bag connector can be inserted and has a large diameter for holding the tubular portion holding the inflated inflatable bag. A connecting portion in which a plurality of tubular portions are arranged so as to overlap each other in the one direction, and the large-diameter tubular portions are joined to each other at a portion having a required width along the axial direction of the overlapping portions. Can be provided.

By doing so, the connecting member of the expansion bag body, which is formed by connecting the plurality of expansion bag bodies for injecting and inflating the filling material so as to overlap each other, is inserted into the larger-diameter cylindrical portion, and the large-diameter cylinder Since the tubular parts are connected to each other by the connecting part, it is possible to stably connect the tubular parts of the inflatable bag connecting device so as to overlap more in one direction.

In addition, in the inflatable bag connector according to the present invention, a deformation preventing member made of a hard material may be provided in the connecting portion that connects the tubular portions with a required width along the axial direction of the tubular portion. it can. With this, the inflatable bag bodies that have been inflated in the respective tubular portions contact each other in a more surely flat state by the deformation preventing member provided in the connecting portion that connects the tubular portions with a required width. As a result, it is possible to further prevent the positions of the inflated inflatable bags in the respective tubular portions from being displaced from each other.

In the inflatable bag connector according to the present invention, one end side of the tubular portion in the axial direction can be closed to form the tubular portion in a bag shape with the other end opened. With this configuration, when one end side of the tubular portion in the axial direction is located on the lower side in the vertical direction or when the tubular portion is placed in a structure that is out of reach, for example, the expansion bag inside the tubular portion is It is possible to suppress slipping out from one end side in the axial direction of the or a large protrusion.

When the one end side in the axial direction of the tubular portion is closed as described above, after the inflation bag is inserted from the other end side in the axial direction of the tubular portion, the axial direction of the tubular portion is It is also possible to close the other end with a surface-bonding fastener or the like.

Then, in the inflatable bag body connected by the connecting tool of the present invention, the inflatable bag body is inserted into each tubular portion of the inflatable bag body connecting tool as described above.

In the inflatable bag connecting device according to the present invention, each cylinder provided with a connecting portion for connecting the tubular portions with a required width along the axial direction of the tubular portion in a portion where the tubular portions overlap each other as described above. Since the expansion bag body is inserted into each of the tubular portions, in this state, when inflating each of the inflation bag bodies by injecting the filler into each of the inflation bag bodies, the expansion bag body in each tubular portion is The outer peripheral surface expansion is brought into close contact with the inner peripheral surface of each tubular portion to be held integrally by the body, and the expanded bag bodies that have been inflated in each tubular portion connect the tubular portions with a required width. The connecting portions are brought into contact with each other in a flat state, and it is possible to prevent the inflated bags in the respective tubular portions from being displaced from each other in position.

As a result, when the expansion bag body is inserted into each tubular portion of the connector of the expansion bag body according to the present invention, the filler is injected into each expansion bag body, and each expansion bag body is inflated, civil engineering works A plurality of inflatable bags for injecting and inflating the filler are installed so as to overlap in the gaps such as the gaps between the structures or the gap between the civil engineering structure and the ground, and the fillers are attached to the respective expansion bags. When inflated by injecting, the inflated expansion bags do not shift from each other due to the expansion bag connector, and the expansion bags are appropriately overlapped and maintained in a connected state. As a result, the gap can be easily and properly filled in the gap of any size as described above.

In addition, in the present invention, unlike the conventional case using a large expansion bag, the surplus portion of the large expansion bag is not filled with a filler such as mortar and the like, which does not increase the cost. The cost can be reduced, and even in places where the space for installing the expansion bag is limited, the expansion bag can be installed without protruding and the space can be sufficiently filled. Become.

The connection tool of the expansion bag body which concerns on the 1st Embodiment of this invention is shown, (A) arrange|positions two cylindrical parts in the double cylinder shape of an inner peripheral side and an outer peripheral side, and along the axial direction. A schematic partial explanatory view showing a state in which the tubular portions are sewn to each other with a required width to form a connecting portion having an unsewn space in the center, (B) shows a connecting portion along the axial direction 2 Inside the unsewn space at the center of the connecting part, with the two cylindrical parts being connected so that the outer peripheral tubular part is inverted and the two connecting parts are vertically overlapped by the connecting part. FIG. 7 is a schematic partial explanatory view showing a state in which a deformation preventing material made of a resin plate is inserted into the sheet. In the connector for the inflatable bag body according to the first embodiment, (A) shows a state in which the inflatable bag body is inserted into each of the two tubular portions connected by the connecting portion so as to overlap in the vertical direction. FIG. 3B is a schematic explanatory view showing a state in which the filler is injected into each expansion bag body inserted into the two tubular portions. FIG. 6 is a schematic partial explanatory view of an expansion bag body to be inserted into the tubular portion in the inflatable bag body connector according to the first embodiment. In the connector for the inflatable bag body according to the first embodiment, one end side of each of the two tubular portions is sewn and closed, while a surface-bonding fastener is attached to each of the other end portions of the two tubular portions. FIG. 7 is a schematic explanatory view showing a state in which the other end sides of the two tubular portions that are provided can be opened and closed. The connection tool of the expansion bag body which concerns on the 2nd Embodiment of this invention is shown, (A) arrange|positions the two cylindrical parts of the inner peripheral side in the cylindrical part of the outer peripheral side, and the inner peripheral side located in the upper side. The tubular portion of the outer peripheral side is brought into contact with the inner peripheral surface of the upper side of the tubular portion on the outer peripheral side, and the tubular portions are sewn to each other with a required width along the axial direction to form the connecting portion, and An outline showing a state in which the peripheral side tubular portion is brought into contact with the lower inner peripheral surface of the outer peripheral side tubular portion, and the tubular portions are sewn to each other with a required width along the axial direction to form a connecting portion. Partial explanatory view, (B), the three tubular portions connected by the connecting portion along the axial direction are reversed with respect to the tubular portion on the outer peripheral side, and two tubular portions on the inner peripheral side are provided above and below the tubular portion on the outer peripheral side. FIG. 7 is a schematic partial explanatory view showing a state in which a deformation preventing member made of a resin plate is inserted into a gap in the two connecting portions while the two tubular portions are connected so as to overlap each other. In the connector for the inflation bag body according to the second embodiment, a state where the inflation bag body is inserted into each of the three tubular portions to be used is shown, and (A) shows the inside of the three tubular portions. A schematic explanatory view showing a state in which the expansion bag is inserted and installed in the gap between the structure and the ground, (B) is each expansion inserted in the two tubular parts to be transferred downward The filling material is injected into the bag body, and a schematic explanatory view showing a state in which the respective expansion bag bodies in the two tubular portions are inflated, (C) is inserted into the two tubular portions to be transferred downward. With the expansion bag bodies inflated, the filler is injected into the expansion bag body inserted in the remaining one tubular portion located above and expanded, and the pressure is applied in the gap portion between the structure and the ground. FIG. 6 is a schematic explanatory view showing a state in which both are held so as to be expanded. 2 shows an inflatable bag connector according to a third embodiment of the present invention, in which the large-diameter tubular portions into which the inflatable bag connector in the first embodiment is inserted are vertically overlapped. And a connecting portion for connecting the large-diameter cylindrical portions with a required width along the axial direction to the portion where the large-diameter cylindrical portions overlap each other. It is the schematic explanatory drawing which showed the state which inserted the connection tool of the expansion bag body in 1st Embodiment in each shaped part. The connection tool of the expansion bag body which concerns on the 4th Embodiment of this invention is shown, (A) arrange|positions two cylindrical parts in the double cylinder of an inner peripheral side and an outer peripheral side, and it raises along the axial direction. A thin resin sheet having a required width is arranged on the tubular portion located at, and a plurality of resin plates having a required width are formed on the resin sheet with a required interval in the axial direction. A schematic partial explanatory view showing a state in which a deformation preventing material is arranged, two tubular portions are connected together with the deformation preventing material by a connecting member such as a bolt, and a connecting portion along the axial direction is provided. , (B) shows that the two tubular portions provided with the connecting portions along the axial direction as described above are inverted with respect to the outer peripheral tubular portion, and the two tubular portions are vertically moved by the connecting portions. FIG. 3 is a schematic partial explanatory view showing a state in which the parts are connected so as to overlap with each other. In the inflatable bag connector according to the fifth embodiment of the present invention, (A) is a structure in which two tubular portions having a short axial length are vertically overlapped and joined by a required width. (B) is a schematic perspective view showing a state in which the two tubular portions are provided with a plurality of the tubular portions provided in the lengthwise direction of the inflatable bag with a required space therebetween. It is the schematic explanatory drawing which showed the state which made each expansion bag body insert, inject|pouring the filler in each expansion bag body, and made it expand|swell.

Hereinafter, a connector for an inflatable bag according to an embodiment of the present invention and an inflatable bag connected by the connector will be specifically described with reference to the accompanying drawings. The inflatable bag connected to the inflatable bag according to the present invention and the inflatable bag connected to the inflatable bag are not limited to those shown in the following embodiments, and may be appropriately changed within the scope of the invention. It can be implemented.

(First embodiment)
In the inflatable bag connector of the first embodiment, as shown in FIG. 1(A), two tubular portions 10, 10 are arranged in a double tubular shape on the inner peripheral side and the outer peripheral side. A connecting portion having a required width having a space portion 11a which is not sewn in the center, is formed by sewing two tubular portions 10 and 10 in the shape of a heavy cylinder along the axial direction thereof with a required width therebetween. 11 was formed.

Next, as shown in FIG. 1(B), the two tubular portions 10 and 10 having the double tubular shape in which the connecting portion 11 is formed are inverted to form the two tubular portions 10 and 10. In the state in which the above-mentioned connecting portions 11 are connected so as to overlap each other in the vertical direction, the deformation preventing material 12 made of the resin plate 12a is inserted into the space portion 11a in the central portion of the connecting portion 11. The resin plate 12a is preferably a hard vinyl chloride resin plate having a thickness of 2 to 5 mm, for example, but may be appropriately selected in consideration of the dimensions of the expansion bag and the intended use. Further, the deformation preventing material 12 is not limited to the resin plate, and a material having higher rigidity such as a metal plate or wood can be used.

In the inflatable bag connector of this embodiment, as described above, the two tubular portions 10 and 10 are connected by the connecting portion 11 so as to overlap each other in the vertical direction, and As shown in FIG. 2(A), with the deformation preventing material 12 made of the resin plate 12a inserted in the space 11a in the central portion, the expansion bags 20 and 20 are respectively inserted into the tubular portions 10 and 10. 2B, and then, as shown in FIG. 2B, the filler X was injected into each of the expansion bags 20 and 20 to expand the expansion bags 20 and 20. As shown in FIG. 3, the expansion bag body 20 that is inserted into each of the tubular portions 10 and into which the filling material X is injected is formed of a hermetically sealed bag body in which the filling material does not leak out, and one end thereof is formed. In addition, a filling mouthpiece 21 for injecting the filling material X into the expansion bag body 20 is used.

Here, when the filler X is injected into each of the expansion bags 20 and 20 inserted into the tubular portions 10 and 10 as described above, the filler X is inflated in the tubular portions 10 and 10. The respective expansion bags 20, 20 come into contact with each other in a flat state at the connecting portion 11 into which the deformation preventing material 12 is inserted as described above, and are expanded in the respective cylindrical portions 10, 10. The respective expansion bags 20, 20 are maintained in a stable state. In order to stably maintain the inflatable bag bodies 20, 20 inflated in the tubular portions 10, 10 in the overlapping state, the circumference of the tubular portion 10 is to be maintained. The width of the connecting portion 11 is preferably about 15 to 35% of the length. If it is less than 15%, the stability cannot be maintained and the state in which the inflatable bag bodies 20, 20 are overlapped with each other is likely to collapse. On the other hand, if it exceeds 35%, it is difficult to obtain a desired expansion diameter of the expansion bags 20 and 20, which is not preferable.

Further, in this embodiment, in the state where the tubular portions 10 are connected by the connecting portion 11 so as to overlap in the vertical direction, the deformation prevention of the resin plate 12a in the space portion 11a in the central portion of the connecting portion 11 is prevented. Although the material 12 is inserted, the entire connecting portions 11 of the tubular portions 10 and 10 are strongly sewn together or adhered with a strong adhesive, so that the connecting portions 11 form the tubular portions 10 and 10 together. If they can be strongly joined so as not to deform each other, it is not necessary to provide the space portion 11a in the central portion of the connecting portion 11 and insert the deformation preventing material 12 made of the resin plate 12a as described above.

In addition, in this embodiment, as described above, the respective expansion bags 20 and 20 are inserted into the respective tubular portions 10 and 10, and the filler X is injected into the respective expansion bags 20 and 20. When inflating the inflatable bag bodies 20 and 20 in the tubular parts 10 and 10, the axial position of the inflatable bag bodies 20 and 20 provided to overlap in the tubular parts 10 and 10 is In order to prevent the expansion bag bodies 20 and 20 from slipping out of the tubular portions 10 and 10 as shown in FIG. 4, one end side of each tubular portion 10 and 10 is closed by sewing, respectively. While the closed portions 13 and 13 are provided, the surface-bonding fasteners 14 and 14 are provided on the other ends of the tubular portions 10 and 10, respectively, and the other ends of the tubular portions 10 and 10 can be opened and closed. Can be

(Second embodiment)
In the inflatable bag connector of the second embodiment, as shown in FIG. 5(A), the tubular portions 10 are respectively located at the upper and lower positions on the inner circumferential side of the tubular portion 10 on the outer circumferential side. , 10 are arranged, and the cylindrical portion 10 on the inner peripheral side positioned on the upper side is brought into contact with the inner peripheral surface on the upper side of the cylindrical portion 10 on the outer peripheral side, and in this state, the cylindrical shape on the inner peripheral side positioned on the upper side The portion 10 and the cylindrical portion 10 on the outer peripheral side are sewn along the axial direction so as to have a required width therebetween, and a connecting portion 11 having a required width having an unsewn space portion 11a is formed in the center, The inner peripheral tubular portion 10 located on the lower side is brought into contact with the lower inner peripheral surface of the outer peripheral tubular portion 10, and in this state, the inner peripheral tubular portion 10 located on the lower side is The tubular portion 10 on the outer peripheral side was sewn along the axial direction so as to have a required width therebetween, and the connecting portion 11 having a required width having an unsewn space portion 11a was formed in the center.

Next, the three tubular portions 10, 10, 10 connected by the respective connecting portions 11, 11 along the axial direction are reversed so that only the outer tubular portion is turned upside down. In a state in which the two cylindrical portions 10, 10 on the inner peripheral side are connected to each other so as to overlap with each other, the resin plate 12a is provided in the space portions 11a, 11a in the central portions of the two connecting portions 11, 11. , 12a of the deformation preventing materials 12 and 12 are inserted.

Also, in the inflatable bag connector of this embodiment, the inflatable bag members are respectively inserted into the three tubular portions 10, 10, 10 which are connected by the connecting portions 11, 11 so as to overlap in the vertical direction as described above. 20, 20, 20 are inserted, and the filling material X is injected into each of the inflatable bag bodies 20, 20, 20 inserted in this way so that the inflatable bag bodies 20, 20, 20 are inflated. ..

Next, using the inflatable bag connector in this embodiment, in the gap portion S between the structure Y1 and the ground Y2, pressure is applied between the structure Y1 and the ground Y2 to spread them. The case of holding the above will be described based on FIGS. 6(A) to 6(C).

First, as shown in FIG. 6(A), the expansion bags 20, 20, 20 are respectively inserted into the three tubular portions 10, 10, 10 which are connected so as to overlap each other in the vertical direction, and the structure Y1 is inserted. It is installed in the gap S between the ground and the ground Y2. Next, as shown in FIG. 6(B), the filling material X is injected into each of the inflatable bag bodies 20 and 20 inserted into the two tubular portions 10 and 10 to be moved downward, so that the two fillers are injected. The inflatable bags 20 and 20 in the tubular portions 10 and 10 are inflated, and then, as shown in FIG. 6C, the inflatable bag inserted into the remaining one tubular portion 10 located above. The filler X is injected into the body 20 to expand it, and a pressure is applied between the structure Y1 and the ground Y2 so as to widen and hold the gap S between the structure Y1 and the ground Y2. To By doing so, the filler X is inserted into the respective expansion bags 20, 20, 20 inserted into the three tubular portions 10, 10, 10 in the gap S between the structure Y1 and the ground Y2. When inflated and inflated, the respective expansion bags 20, 20, 20 are fixed in a state of being overlapped by the reaction force between the structure Y1 and the ground Y2, and are fixed in the three tubular portions 10, 10, 10. The overlapping of the inflatable bag bodies 20, 20, 20 that have been inserted into the structure is appropriately maintained, and thus it becomes possible to apply pressure between the structure Y1 and the ground Y2.

(Third Embodiment)
In the inflatable bag connector according to the third embodiment, as shown in FIG. 7, the two tubular portions 10, 10 are vertically connected by the connecting portion 11 as shown in the first embodiment. Two inflatable bag connecting members that are connected so as to overlap each other are used, and the inflatable bag connecting members in the first embodiment are inserted into the large-diameter two tubular portions 100, 100, respectively. Two connecting portions 110 are arranged so as to overlap each other in the vertical direction, and a connecting portion 110 for connecting the large-diameter cylindrical portions with a required width along the axial direction to a portion where the large-diameter cylindrical portions 100, 100 overlap each other. It is provided.

Then, in the inflatable bag connector of this embodiment, the two inflatable bag connectors shown in the first embodiment are inserted into the large-diameter tubular portions 100, 100, respectively, as described above. After that, although not shown in the drawings, the expansion bag bodies 20, 10 are respectively provided in the four tubular portions 10, 10, 10, 10 in the connecting tool for the two expansion bag bodies shown in the first embodiment. 20, 20, 20 is inserted, and the filling material X is injected into each of the inflatable bag bodies 20, 20, 20, 20 inserted in this way to inflate each inflatable bag body 20, 20, 20, 20. To let

In this case, in the two inflatable bag body connecting tools shown in the first embodiment, the inflatable bag bodies 20, 20 expanded in the tubular portions 10, 10 as described above, respectively. , 20, 20 come into contact with each other in a flat state at the connecting portions 11, 11 in which the deformation preventing materials 12, 12 are inserted as described above, and expand in the tubular portions 10, 10. Each of the expanded bag bodies 20, 20, 20, 20 thus maintained is maintained in a stable state, and also the two large-diameter tubular portions 100, 100 into which the connecting members for the two expanded bag bodies are inserted, The connecting portions 110 provided with a required width along the axial direction contact the overlapping portions of the two inflating bag bodies inserted into the two large-diameter tubular portions 100, 100. The connector is also maintained in a stable state, and the overlapping of the inflatable bag bodies 20, 20, 20, 20 inflated in the four tubular portions 10, 10, 10, 10 is displaced. It will be suppressed and maintained in a stable state.

(Fourth Embodiment)
In the inflatable bag connector of the fourth embodiment, the two tubular portions 10, 10 are vertically overlapped with each other with respect to the inflatable bag connector of the first embodiment. Only the connecting portion 11 to be connected is changed, and other than that, the same configuration as that of the connecting member for the inflatable bag body shown in the first embodiment is adopted.

Here, in the inflatable bag connector of this embodiment, as shown in FIG. 8(A), the two tubular portions 10, 10 are arranged in a double cylinder on the inner peripheral side and the outer peripheral side. In providing the connecting portion 11 for connecting the two tubular portions 10 having the double tubular shape so as to overlap each other in the vertical direction, on the tubular portion 10 located at the upper side of the double tubular shape. , A thin resin sheet 12b having a required width is arranged along the axial direction, and a plurality of resin plates 12c having the required width are formed on the resin sheet 12b with a required interval in the axial direction. The deformation preventing material 12 made of is arranged, and the two tubular portions 10, 10 are vertically overlapped with the deformation preventing material 12 made of the resin sheet 12b and the resin plate 12c by a connecting member 11b such as a bolt. It was connected as follows. It should be noted that the thin resin sheet 12b has such rigidity that it is self-supporting, but has such flexibility that it does not hinder the inside-out operation when the two connected tubular portions are inverted. For example, a hard and thin sheet such as a hard polypropylene sheet having a thickness of 0.1 to 0.2 mm is suitable.

Next, as shown in FIG. 8(a), the two tubular portions 10, 10 having the double tubular shape as described above are vertically overlapped with each other and are coupled by the coupling portion 11 using the coupling member 11b. As shown in B), a portion in which the two tubular portions 10, 10 having the double tubular shape are inverted and the two tubular portions 10, 10 are connected by a connecting portion 11 so as to overlap in the vertical direction. In the inner peripheral surface of one cylindrical portion 10, the deformation preventing material 12 is provided with a plurality of resin plates 12 c having a required width so as to be disposed on the resin sheet 12 b in the axial direction with a required space therebetween. The two tubular parts 10 and 10 were connected by the connecting part 11 so as to be vertically positioned so as to be positioned on the surface side.

After that, although not shown, similar to the inflatable bag body connecting device in the first embodiment, the inflatable bag bodies 20 and 20 are inserted into the tubular portions 10 and 10, respectively, and then, The filler X is injected into the expansion bags 20 and 20 to inflate the expansion bags 20 and 20, respectively. Also in the inflatable bag connector of this embodiment, the inflatable bag bodies 20, 20 inflated in the tubular portions 10, 10 are axially arranged on the resin sheet 12b as described above. The deformation preventing material 12 provided with a plurality of resin plates 12c having a required width so as to be spaced by a required distance allows the connecting portions 11 to come into contact with each other in a flat state. The inflatable bag bodies 20, 20 that have been inflated in the air bag 10, 10 are maintained in a stable state.

(Fifth Embodiment)
In the inflatable bag connector of the fifth embodiment, as shown in FIG. 9(A), the two tubular portions 10 having a short axial length are vertically stacked to form the two tubular portions 10, 10. The two tubular portions 10, 10 are joined to each other with a required width, and the two tubular portions 10, 10 are superposed on each other in the joined portion to form a connecting portion 11, and the connecting portion 11 is formed. Thus, the two tubular portions 10 and 10 are strongly bonded to each other.

Further, in this embodiment, as shown in FIG. 9(B), the two tubular portions 10 having a short axial length, which are connected by the connecting portion 11 so as to be vertically overlapped with each other as described above, A plurality of connecting members made of 10 are arranged in the axial direction at a required interval, and the tubular portions 10 positioned on the upper side of the two tubular portions 10, 10 arranged in such a manner and the lower side. The expansion bags 20 and 20 into which the filling material X is injected are inserted into the respective tubular portions 10 located at, and the filling material X is injected into the expansion bags 20 and 20 to be inflated. There is. In addition, in each of the expansion bags 20 and 20, the closing portions 22 that are closed by sewing or the like are provided at both ends thereof so that the filler X injected into the expansion bags 20 and 20 does not leak out. I have to.

Then, as in this embodiment, when a plurality of tubular portions 10, 10 that are connected by the connecting portion 11 and have a short axial length are used and a plurality of them are arranged in the axial direction at required intervals, a plurality of them are axially arranged. The inflatable bag bodies 20 and 20 inflated in the tubular portions 10 and 10 arranged at a plurality of intervals through the required space strongly strengthen the upper and lower tubular portions 10 and 10 arranged in a plurality as described above. It is held in a flat state at each of the above-mentioned connecting portions 11 that are connected so as to be joined, and the inflatable bag bodies 20 and 20 inflated in the tubular portions 10 and 10 are in a stable state. Will be maintained.

In the embodiment of the present invention, as the tubular portion 10 and the connecting portion 11, a tubular material such as a fire hose in which a fabric layer and a resin layer are integrally formed is preferably used.
The tubular portion 10 and the connecting portion 11 can also be formed by sewing a sheet material such as a base cloth or a tarpaulin. For example, the connecting portion 11 is formed by rolling a sheet-like material and sewing it, folding the connecting portion 11 flat, and sewing the end of another sheet-like material in an arch shape along the widthwise ears. It is also possible to form the tubular portion 10 with.
Of course, it is also possible to manufacture by combining a cylindrical object and a sheet-like object.

10: Cylindrical part 11: Connection part 11a: Space part 11b: Connection member 12: Deformation prevention material 12a: Resin plate 12b: Resin sheet 12c: Resin plate 13: Closure part 14: Surface-bonding fastener 20: Expansion bag 21: Filling mouthpiece 22: Closing portion 100: Cylindrical portion 110: Connection portion S: Gap portion X: Filler material Y1: Structure Y2: Ground

Claims (5)

Injecting a filler to inflate and inflating a plurality of inflatable bag members for connecting in an overlapping manner, in an inflatable bag member into which a filler material is inflated and inserted, and the inflated bag member after inflating A connecting portion for arranging a plurality of tubular portions to be held so as to overlap each other in one direction, and for connecting the tubular portions with a required width along the axial direction of the tubular portions at the portions where the tubular portions overlap each other. An inflatable bag connector which is provided with a. A large-diameter tubular portion that holds the tubular portion that holds the inflated bag body that can be inserted with the connecting member for the inflatable bag body according to claim 1 overlaps in the one direction. Inflatable bag characterized in that a plurality of such large-diameter tubular portions are provided with a connecting portion for connecting the large-diameter tubular portions with a required width along the axial direction at a portion where the large-diameter tubular portions overlap each other. Body connector. The connecting tool for an inflatable bag according to claim 1 or 2, wherein the connecting portion that connects the tubular portions with a required width along the axial direction of the tubular portion has a deformation preventing material made of a hard material. An inflatable bag connector which is provided with a. The inflatable bag connector according to any one of claims 1 to 3, wherein one end side of the tubular portion in the axial direction is closed to form the tubular portion in a bag shape. An inflatable bag connector, which is characterized in that The inflatable bag connector according to any one of claims 1 to 4, wherein the inflatable bag body is inserted into each tubular portion into which the inflatable bag body is inserted. Inflatable bag connected by.

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