JP2019074289A - Duct system - Google Patents

Abstract

To support a duct in a hung manner in consideration of simplification of configuration, weight saving and improvement of workability.SOLUTION: A duct system comprises a duct 2 composed of cardboard, and an insertion member 3, 4 composed of cardboard and configured to insert the duct 2 therein. The insertion member 3, 4 comprises a large-diameter part 36, 44 extending to an outer peripheral side of the duct 2, taking on a tabular shape having a diameter larger than the duct 2, and formed into a rectangular shape in view from an axial core direction of the duct 2. The large-diameter part 36, 44 is configured to be supported at a hanging tool 5, 6 in a freely hung manner, and be freely mounted at a place to be mounted.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a duct system provided with a duct made of cardboard.

  Conventionally, as a duct for air conditioning, the duct system which adopted the duct constituted by corrugated cardboard is proposed (for example, refer to patent documents 1 and 2.). In this duct system, a plurality of ducts are provided in a state of connecting the ducts, and the duct is suspended and supported from a ceiling or the like by using a hanging tool or the like.

  In the system described in Patent Document 1, three configurations are illustrated as a configuration for suspending and supporting a duct. The first configuration is a configuration in which a duct is received and supported by an angle member suspended and supported by a hanging tool. The second configuration is a configuration in which a ring pin is inserted into the side surface of the duct, and the ring pin is suspended and supported by a hanger. The third configuration is a configuration in which a metal connection body is provided which is fitted inside the duct to connect the ducts, and a portion of the connection body extending to the outer peripheral side than the duct is suspended and supported by a suspending tool. is there.

  In the system described in Patent Document 2, as a structure for suspending and supporting the duct, a box-shaped connecting body for connecting the ducts in a state of covering the duct is provided, and a hanging piece formed on a side surface portion of the connecting body is suspended. A configuration for suspending and supporting with a lowering tool is illustrated.

Patent No. 4820155 Patent No. 4898540

  In the duct system as described above, the weight reduction and the improvement of the workability and the like are achieved by adopting a duct made of cardboard. However, in the third hanging configuration in the system described in Patent Document 1, since the metal connector is used to suspend and support the duct, the weight of the connector itself becomes heavy, which is effective in weight reduction. It will not be possible to

  In addition, in the first hanging configuration in the system described in Patent Document 1, an angle member must be separately provided to suspend and support the duct, resulting in complication of the configuration and cost increase. Become. In the second hanging configuration in the system described in Patent Document 1, the ring pin is inserted into the side of the duct, which may cause problems in the durability of the duct as well as the insertion of the ring pin. In places, it is necessary to take measures such as preventing communication between the inside and the outside of the duct, and it becomes necessary to perform some kind of treatment for suspending and supporting the duct.

  In the system described in Patent Document 2, although the duct is suspended and supported using the connecting body connecting the ducts, it is necessary to form a hanging piece extending to the outer peripheral side of the duct on the side surface portion of the connecting body. In addition, the construction becomes complicated, and improvement is also required in terms of workability. In addition, since the connecting body is used to suspend and support the duct, the place where the duct is suspended and supported is limited to the place where the ducts are connected to each other. Therefore, according to the arrangement | positioning condition of a duct, or other various conditions, the location which suspends and supports a duct can not be selected freely, but it becomes difficult to aim at improvement of construction property effectively.

  In view of this situation, the main object of the present invention is to provide a duct system capable of suspending and supporting a duct while simplifying the configuration, reducing the weight, and improving the workability.

According to a first aspect of the present invention, there is provided a duct comprising a corrugated board.
And an insertion member which is made of cardboard and which inserts the duct.
The insertion member has a plate shape extending to the outer peripheral side of the duct and having a larger diameter than the duct, and is provided with a large diameter portion formed in a rectangular shape in an axial center direction of the duct, the large diameter portion The point is that it can be suspended and supported by a suspending tool and can be placed at a place to be placed.

  According to the present configuration, by providing the insertion member made of cardboard, not only can the suspension support of the duct be achieved while achieving weight reduction of the insertion member, but, for example, While placing the diameter portion, the installation work of the duct can be advanced, and the construction can be improved. Moreover, both the hanging and supporting of the duct and the mounting of the floor and the like on the placement target location utilize the large diameter portion provided in the insertion member, and the hanging and supporting for the duct and the mounting and supporting There is no need to take any action to

  In addition, although the large diameter portion extends to the outer peripheral side of the duct and has a simple configuration of a plate shape having a diameter larger than that of the duct, the large diameter portion is utilized regardless of the shape of the duct. Since it is possible to perform suspension support and placement on the placement target location, simplification of the configuration is achieved, and suspension support and placement on the placement target location are not limited by the duct shape. Placement can be done. Moreover, since the large diameter portion is rectangular, for example, the upper side portion of the large diameter portion can be suspended and supported, and the lower side portion of the large diameter portion can be set as the mounting location. The suspension support of the duct and the placement on the placement target location can be efficiently performed while utilizing the shape. Since the part provided with the insertion member becomes the hanging support part and the placement part, the insertion member can be freely installed according to the arrangement condition of the duct and other various conditions, and the improvement of the construction efficiency is effective. Can be

  A second characterizing feature of the present invention is that the insertion member has a hole externally fitted to the duct.

  According to this configuration, by providing the insertion member, the hole of the insertion member can be externally fitted to the duct, in addition to suspending and supporting the duct and mounting on the placement target location. . Therefore, the cross-sectional shape of the duct can be prevented from being deformed by the hole portion of the insertion member, and the cross-sectional shape of the duct can be maintained.

According to a third characterizing feature of the present invention, the insertion member is provided with a tubular connection portion extending in the axial direction of the duct,
The connection portion guides the ducts in the axial direction and is configured to be able to connect the ducts.

  According to this configuration, by providing the insertion member, the ducts are connected to each other at the connection portion of the insertion member, in addition to the hanging support of the duct and the placement on the placement target location. Can. Moreover, since the connection portion is a tubular shape extending in the axial direction of the duct, for example, when the connection portion abuts on the duct, the duct can be guided in the axial direction of the duct to connect the ducts. , The connection work of the ducts can be simplified.

According to a fourth characterizing feature of the present invention, the connecting portion is formed in a tubular shape which can be fitted outside the duct,
It is disposed at an intermediate position of the connecting portion extending in the axial direction of the duct, and is provided with a contact portion extending inward of the duct with respect to the connecting portion.

  According to this configuration, when the duct is inserted into the tubular connection portion in order to connect the ducts, the duct moves in a state in which the duct is externally fitted in the tubular connection portion. At this time, the abutment portion is provided in the middle of the connection portion, and the abutment portion extends to the inner side of the duct than the connection portion, so the duct is kept until the tip of the duct is abutted against the abutment portion. By moving, the duct can be moved to a desired position, and the duct can be positioned at the desired position. Therefore, when connecting ducts, a duct can be simply positioned to the desired position suitable for connection, and simplification of the connection work of ducts can be achieved.

According to a fifth aspect of the present invention, the connection portion and the contact portion are separately provided.
The connection portion is disposed in a state in which the contact portion is sandwiched from both sides in the axial direction of the duct.

  According to this configuration, since the connecting portion and the abutting portion are separate bodies, the connecting portion and the abutting portion can be in a desired posture and position only by arranging the abutting portion with the pair of connecting portions sandwiching the abutting portion. As a result, it is possible to simplify the assembling work of the connection portion and the fitting portion.

A perspective view showing a schematic configuration of a duct system An exploded perspective view of the main part of the duct system Side view showing the first insertion member Sectional view showing the first insertion member Sectional drawing in the state which decomposed | disassembled the 1st penetration member Side view showing the second insertion member Sectional view showing the second insertion member

An embodiment of a duct system according to the present invention will be described based on the drawings.
As shown in FIG. 1, the duct system 1 is provided with a duct 2 made of cardboard and insertion members 3 and 4 for inserting the duct 2. The duct system 1 includes a plurality of ducts 2 in a state where the ducts 2 are connected to each other, and by suspending and supporting the insertion members 3 and 4 by the suspending tools 5 and 6, the ducts 2 are suspended and supported. Is configured.

  As shown in FIG. 1 and FIG. 2, the duct 2 has a tubular corrugated cardboard 21 whose cross-sectional shape is formed in a hexagonal shape, and a duct sheet body 22 covering the periphery such as the inside and the outside of the tubular corrugated cardboard 21. (See FIGS. 4 and 7). Incidentally, in FIG. 2, the duct sheet body 22 covering the periphery of the corrugated board 21 is omitted in the duct 2. The duct sheet body 22 is made of, for example, an aluminum foil or the like. The duct 2 has a function such as non-combustibility performance, air tight performance, heat insulation performance, moisture resistance, condensation prevention, etc. by covering the periphery of the corrugated board 21 with the duct sheet body 22. The corrugated board 21 and the duct sheet body 22 are fixed by, for example, an adhesive tape or an adhesive.

  In this embodiment, the cross-sectional shape of the duct 2 is a hexagonal shape, but it may be a polygonal shape such as a quadrilateral shape or an octagonal shape, or any other shape, and the cross-sectional shape may be changed as appropriate. is there. For example, in the case where the duct 2 is installed in a state in which a beam or the like of a building is penetrated, the duct 2 passes through a circular through hole formed in the beam or the like. 2 can be installed.

  The insertion members 3 and 4 are made of cardboard, and as shown in FIG. 1, two types of the first insertion member 3 and the second insertion member 4 are provided. Incidentally, FIG. 1 illustrates the case where one first insertion member 3 and two second insertion members 4 are provided.

  As shown in FIG. 1, the first insertion member 3 is provided with a plate-shaped large-diameter portion 36 which extends to the outer peripheral side of the duct 2 and has a diameter larger than that of the duct 2. The large diameter portion 36 is formed in a rectangular shape as viewed in the axial center direction of the duct 2 and is configured so as to be able to be suspended and supported by the suspending tools 5 and 6 and to be mounted on a mounting target location. ing. Similarly to the first insertion member 4, the second insertion member 4 is also provided with a plate-like large diameter portion 44 which extends to the outer peripheral side of the duct 2 and is larger in diameter than the duct 2 as shown in FIG. 1 . The large diameter portion 44 is also formed in a rectangular shape when viewed in the axial center direction of the duct 2, and can be suspended and supported by the suspending members 5 and 6 and configured to be mountable at a mounting target location. ing.

  The first insertion member 3 is a member which is supported by being suspended by the suspending members 5 and 6 (see FIG. 1) and suspends and supports the duct 2 to be inserted, as shown in FIGS. In addition, it is configured as a member for connecting the ducts 2 to each other. Therefore, by providing the first insertion member 3, the suspension support of the duct 2 and the connection between the ducts 2 can be performed, and the configuration can be simplified.

  As shown in FIGS. 2, 4 and 5, the first insertion member 3 has a cylindrical connecting portion 31 extending in the axial center direction X of the duct 2 (see FIGS. 4 and 5) and the connecting portion 31. An abutting portion 32 extending to the inner side of the duct 2 and a first insertion member sheet body 33 (for example, aluminum foil or the like) covering the connection portion 31 and the periphery of the abutting portion 32 are provided. Incidentally, in FIG. 2, in the first insertion member 3, the sheet body 33 for the first insertion member is omitted. Each of the connection portion 31 and the contact portion 32 is formed of a corrugated board, and the first insertion member 3 covers the periphery of the connection portion 31 and the contact portion 32 with the sheet member 33 for the first insertion member. It has functions such as non-combustible performance, air tightness performance, heat insulation performance, moisture resistance, and dew condensation prevention. The connection portion 31, the contact portion 32, and the first insertion member sheet body 33 are fixed by, for example, an adhesive tape, an adhesive, or the like.

  As shown in FIG. 2, FIG. 4 and FIG. 5, a pair of connection parts 31 is provided, one contact part 32 is provided, and the connection part 31 and the contact part 32 are separately configured. As shown in FIG. 4, the pair of connection portions 31 is disposed in such a manner as to sandwich the contact portion 32 from both sides in the axial direction X of the duct 2. As shown in FIG. 2, in each of the connection portion 31 and the contact portion 32, an insertion hole portion 34 which allows the duct 2 to be inserted through the central portion thereof and which can be externally fitted to the duct 2 is formed. In this embodiment, since the cross-sectional shape of the duct 2 is a hexagonal shape, the insertion holes 34 of the connection portion 31 and the abutting portion 32 are also formed in a hexagonal shape.

  As shown in FIG. 4, the connection portion 31 includes a guide portion 31a elongated in the axial center direction X of the duct 2 and a large diameter portion 31b extending to the outer peripheral side of the duct 2 from one end portion of the guide portion 31a. It is done. FIG. 2 shows a state in which the guide portion 31a and the large diameter portion 31b are assembled in the connection portion 31. For example, the guide portion 31a and the large diameter portion 31b are fixed by an adhesive tape, an adhesive or the like. ing.

  The contact portion 32 is formed in a plate shape extending in a direction orthogonal to the axial direction X of the duct 2 as shown in FIGS. 2, 4 and 5. The outer end of the contact portion 32 is flush with or substantially flush with the outer end of the large diameter portion 31 b of the connection portion 31, and the inner end thereof is the inner end of the guide portion 31 a of the connection portion 31. It is configured to project further inward than the duct 2. The inner end portion of the contact portion 32 is flush or substantially flush with the inner surface portion of the duct 2 to be connected, and the contact portion 32 is configured not to project to the inner side of the duct 2 more than the inner surface portion of the duct 2 It is done.

  Incidentally, in this embodiment, as shown in FIG. 2, an example in which the large diameter portion 31b is provided as the connection portion 31 is shown, but for example, the large diameter portion 31b can be provided as the fitting portion 32. Whether the large diameter portion 31b is assembled as the connection portion 31 or the large diameter portion 31b is assembled as the contact portion 32 can be appropriately changed.

  When connecting the ducts 2 to each other, as shown in FIG. 5, the inner surface of the guide portion 31a in the connecting portion 31 abuts on the connected duct 2 and guides in the axial direction X to connect the ducts 2 to each other. It is configured to be connectable. In a state in which the duct 2 is internally fitted to the connection portion 31, as indicated by an arrow in FIG. 5, the inner surface of the guide portion 31a in the connection portion 31 only by moving the duct 2 to the back side of the connection portion 31. The duct 2 can be smoothly guided along the axial direction X by the part. The contact portion 32 is disposed at the central position of the first insertion member 3 in the axial direction X of the duct 2. The duct 2 can be positioned at a desired position suitable for connection by moving the duct 2 until the end of the duct 2 is abutted against the abutting portion 32. In this manner, the ducts 2 are connected to each other by fixing the ducts 2 at a desired position with, for example, an adhesive tape, an adhesive or the like in a state where each of the ducts 2 to be connected is positioned at the desired position. The connection portions 31 on both sides of the contact portion 32 have the same length in the axial direction X of the duct 2, so each of the ducts 2 to be connected is moved until the tip end portion thereof contacts the contact portion 32. Since the insertion distance which inserts the duct 2 connected with respect to the connection part 31 will become the same distance if it is made to be able to connect, duct 2 comrades can be performed with sufficient balance.

  As shown in FIGS. 2, 4 and 5, the large diameter portion 36 of the first insertion member 3 is formed by combining three cardboards of the large diameter portion 31 b of the pair of connection portions 31 with the application portion 32. It is configured. The large diameter portion 36 is configured by superposing three corrugated cardboards of the large diameter portion 31 b and the fitting portion 32 in the axial direction X of the duct 2, and the duct 2 is larger than the guide portion 31 a in the connecting portion 31. It has a shape extending to the outer peripheral side of

  The large diameter portion 36 of the first insertion member 3 is configured to be able to be suspended and supported by the suspending tools 5 and 6 as shown in FIGS. 1, 3 and 4. As shown in FIG. 1, the suspension supporting point by the suspending members 5 and 6 is an upper end portion of a portion of the large diameter portion 36 which extends upward with respect to the duct 2. At the upper end of the large diameter portion 36, as shown in FIG. 2, three suspension holes 35 are formed in a row in the width direction of the duct 2, and the suspension holes 35 located at the center are The suspending holes 35 supported by the first suspending tool 5 and suspended at both ends are suspended and supported by the second suspending tool 6.

  As shown in FIG. 3 and FIG. 4, the first hanger 5 has a hanging metal fitting 51 in a suspended state in which the upper end is fixed to a ceiling or the like, and L which can be connected to the lower end of the metal hanging piece 51. A letter-like connection fitting 52 is provided. The suspension fitting 51 and the connection fitting 52 are connected by fastening with the nut 53 in a state where the lower end portion of the suspension fitting 51 is inserted into the hole portion of the connection fitting 52. The connection fitting 52 and the large diameter portion 36 are connected by fastening with the nut 53 in a state where the bolt 54 inserted through the hole of the connection fitting 52 is inserted into the suspension hole 35 of the large diameter portion 36 It is done.

  As shown in FIG. 1, the second hanger 6 is formed in a wire shape, and its upper end is fixed to a ceiling or the like. By inserting a ring portion formed at the lower end of the second hanger 6 into the suspension holes 35 of the large diameter portion 36, the suspension holes 35 located at both ends are the second hangers. It is suspended and supported at 6.

  As shown in FIGS. 1, 6 and 7, the second insertion member 4 is suspended and supported by the suspending members 5 and 6, and is configured as a member for suspending and supporting the duct 2 to be inserted. There is. As shown in FIGS. 2, 6 and 7, the second insertion member 4 includes a plurality of rectangular plate-shaped unit members 41 and a sheet member 42 for the second insertion member covering the periphery of the plurality of unit members 41 (for example, , Aluminum foil, etc.). Incidentally, in FIG. 2, in the second insertion member 4, the sheet body 42 for the second insertion member is omitted.

  As shown in FIG. 2, FIG. 6 and FIG. 7, the second insertion member 4 superposes a plurality of unit members 41 in the axial direction X of the duct 2, and the second insertion members surround the plurality of unit members 41. The sheet body 42 is configured to cover. Incidentally, although three unit members 41 are provided in this embodiment, the number of unit members 41 can be changed as appropriate. Each of the plurality of unit members 41 is made of corrugated cardboard, and the second insertion member 4 covers the periphery of the plurality of unit members 41 with the sheet member 42 for the second insertion member, thereby achieving incombustibility and airtightness. It has functions such as performance, heat insulation performance, moisture resistance, and condensation prevention. The plurality of unit members 41 and the second insertion member sheet body 42 are fixed by, for example, an adhesive tape or an adhesive.

  In each of the plurality of unit members 41, as shown in FIG. 2, an insertion hole 43 (corresponding to a hole) which allows the duct 2 to be inserted through the central portion thereof and which can be externally fitted to the duct 2 is formed. . In this embodiment, since the cross-sectional shape of the duct 2 is a hexagonal shape, the insertion hole 43 of the unit member 41 is also formed in a hexagonal shape. As described above, when the insertion hole 43 of the unit member 41 is externally fitted to the duct 2, it is possible to prevent the deformation and the like of the duct 2 and maintain the cross-sectional shape of the duct 2 in a hexagonal shape.

  Similarly to the large diameter portion 36 of the first insertion member 3, the large diameter portion 44 of the second insertion member 4 is suspended and supported by the suspending members 5 and 6 as shown in FIGS. 1, 6 and 7. It is configured freely. As shown in FIG. 1, the suspension supporting point by the suspending members 5 and 6 is an upper end portion of a portion of the large diameter portion 44 which extends above the duct 2. At the upper end portion of the large diameter portion 44, as shown in FIG. 2, three suspending holes 45 are formed in line with the width direction of the duct 2, and the suspending hole 45 located at the center is The suspension holes 45 supported by the first hanger 5 and positioned at both ends are suspended and supported by the second hanger 6.

  In the large diameter portion 44 of the second insertion member 4, the first suspension 5 suspends and supports the suspension hole 45, and the second suspension 6 suspends the suspension hole 45. About the structure to support, since it is the same as that of the structure supported by the large diameter part 36 of the 1st penetration member 3, it abbreviate | omits description.

  In the duct system 1, the duct 2 can be suspended and supported only by providing the first insertion member 3 and the second insertion member 4, and the large diameter portions 36 and 44 are placed at places to be placed such as a floor portion. While placing the lower end portion, the installation work and the like of the duct 2 can be advanced, and the construction can be improved. Since the first insertion member 3 and the second insertion member 4 are made of corrugated cardboard, weight reduction of the insertion members 3 and 4 can be achieved, and weight reduction can be effectively achieved as the entire system. However, the construction can be improved.

  About the installation form of the duct 2, as shown in FIG. 1, it can not only suspend and support the form but it can also be installed and installed in installation object locations, such as a floor part, for example. In this case, by placing the large diameter portions 36 and 44 on the installation target location such as a floor portion, the duct 2 can be installed in the installation target location.

  The duct 2 can be suspended and supported not only at the large diameter portion 36 of the first insertion member 3 but also at the large diameter portion 44 of the second insertion member 4, and to the placement target location such as a floor portion It can also be placed. Therefore, according to the arrangement | positioning condition of the duct 2, and other various conditions, the installation location of the penetration members 3 and 4 can be selected freely, and the improvement of construction property can be aimed at effectively.

[Another embodiment]
Another embodiment of the present invention will be described. In addition, the configuration of each embodiment described below is not limited to being individually applied, and may be applied in combination with the configuration of the other embodiments.

(1) Although the example provided with the 1st insertion member 3 and the 2nd insertion member 4 was shown in the said embodiment, only the 1st insertion member 3 or only the 2nd insertion member 4 can also be provided, for example.

(2) In the embodiment described above, the first insertion member 3 includes the attachment portion 32 in addition to the connection portion 31. However, the attachment portion 32 may not be provided. The first insertion member 3 can also be configured by the portion 31.

(3) Although the example which provided the several unit member 41 in the 2nd penetration member 4 was shown in the said embodiment, the 2nd penetration member 4 can also be comprised from one member. Further, the length of the second insertion member 4 in the axial direction X of the duct 2 can be changed as appropriate, and the number of unit members 41 is changed according to the length of the second insertion member 4. You can also

1 duct system 2 duct 3 first insertion member (insertion member)
4 Second insertion member (insertion member)
5 1st hanger (hanger)
6 second hanging tool (hanging tool)
31 connecting portion 32 abutting portion 36 large diameter portion 43 of first insertion member insertion hole (hole)
44 Large diameter part of second insertion member

Claims (5)

With duct made of cardboard,
And an insertion member which is made of cardboard and which inserts the duct.
The insertion member has a plate shape extending to the outer peripheral side of the duct and having a larger diameter than the duct, and includes a large diameter portion formed in a rectangular shape in an axial center direction of the duct.
The duct system, wherein the large diameter portion can be suspended and supported by a suspending tool and can be mounted on a mounting target location.   The duct system according to claim 1, wherein the insertion member has a hole externally fitted to the duct. The insertion member is provided with a tubular connection portion extending in an axial direction of the duct,
The duct system according to claim 1, wherein the connecting portion guides the duct in an axial direction of the duct so that the ducts can be connected with each other. The connection portion is configured in a tubular shape that can be fitted onto the duct.
The duct system according to claim 3, further comprising a contact portion disposed at an intermediate position of the connecting portion extending in the axial direction of the duct and extending inward of the duct with respect to the connecting portion. The connection portion and the contact portion are separately configured;
The duct system according to claim 4, wherein the connection portion is disposed so as to sandwich the contact portion from both sides in the axial direction of the duct.

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