Chamber, ventilation facility structure, and ventilation facility construction method

Abstract

To provide a chamber, a ventilation facility, and a ventilation facility construction method which enable easy installation work.SOLUTION: A chamber 6 is configured so that a duct is connected thereto. The chamber 6 includes: a first surface part 21 provided with a vent hole 21A; a second surface part 22 having an opening 22A having a size such that the duct may be inserted thereinto; a lid member 50 which closes the opening 22A of the second surface part 22; and a third surface part 23 forming a surface different from the first surface part 21 and the second surface part 22. The lid member 50 has a duct connection port with which the duct is connected. The third surface part 23 has a holding part which removably holds the lid member 50.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present disclosure relates to a chamber, a ventilation system structure, and a ventilation system installation method. [Background technology]

[0002] There is a known technique for connecting a duct to a chamber (see, for example, Patent Document 1). In the technique described in this document, an end of a duct is inserted into a duct connection hole formed in the chamber body. Then, inside the chamber body, the end of the duct is connected to a flange, and the flange is fixed to the inner wall of the chamber. With conventional chambers, the flange needs to be attached with the duct tilted, making the installation process difficult. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2003-004284 A Summary of the Invention [Problem to be solved by the invention]

[0004] Regarding the chamber of the conventional structure, there is room for further improvement in terms of ease of installation work. [Means for solving the problem]

[0005] A chamber of a first aspect for solving the problem is a chamber to which a duct is connected, and comprises a first surface portion in which an air vent is provided, a second surface portion having an opening large enough to allow the duct to pass through, a cover member that covers the opening of the second surface portion, and a third surface portion that constitutes a surface different from the first surface portion and the second surface portion, wherein the cover member has a duct connection port to which the duct is connected, and the third surface portion has a holding portion that removably holds the cover member.

[0006] According to this configuration, the opening of the second surface portion is larger than the duct connection port. Therefore, the duct can be easily inserted into the chamber. Furthermore, the cover member can be temporarily fixed to the third surface portion by the holding portion. The temporary fixation makes it difficult for the cover member to move. In this way, the duct can be connected to the cover member in a state where the cover member is temporarily fixed to the third surface portion, making it easy to connect the duct to the cover member.

[0007] A chamber according to a second aspect is the chamber according to the first aspect, wherein the third surface portion is provided at a position facing the second surface portion. According to this configuration, the duct can be connected to the cover member held by the third surface portion by pulling the duct linearly from the second surface portion. Since there is no need to bend the duct in this way, the task of connecting the duct to the cover member can be easily performed.

[0008] In a third aspect, the chamber of the first aspect is configured such that the third surface portion is provided at a position intersecting the second surface portion, and the cover member is rotatably supported by the chamber. With this configuration, since the cover member is supported by the chamber, it is possible to prevent the cover member from falling off.

[0009] A chamber according to a fourth aspect is the chamber according to any one of the first to third aspects, wherein the second surface portion has an attachment portion provided around the opening portion to which the lid member is attached, an inner surface of the attachment portion is configured to contact an outer periphery of the lid member, and the attachment portion has a fastening portion to which a fastening member can be fastened from within the chamber. With this configuration, the lid member can be fixed to the second surface portion from within the chamber. Therefore, a duct can be fixed to the chamber with the chamber installed in the ceiling space.

[0010] A chamber according to a fifth aspect is the chamber according to any one of the first to fourth aspects, wherein the cover member has a plate portion in which the duct connection port is provided and a connection port member protruding from the duct connection port, and the plate portion and the connection port member are integrally configured. With this configuration, the duct can be easily connected to the cover member.

[0011] A sixth aspect of the present invention relates to the chamber of any one of the first to fourth aspects, and the cover member has a plate portion in which the duct connection port is provided and a connection port member protruding from the duct connection port, and the plate portion and the connection port member are configured separately. With this configuration, the duct can be connected to the plate portion with the connection port member attached to the duct.

[0012] A chamber according to a seventh aspect is the chamber according to any one of the first to sixth aspects, wherein the cover member is provided with one or more additional duct connection ports to which a duct different from the duct is connected. With this configuration, a plurality of ducts can be connected to the chamber.

[0013] The chamber of an eighth aspect is the chamber of any one of the first to seventh aspects, further comprising a grill, the grill being provided at the vent. With this configuration, it is possible to prevent foreign matter from entering the chamber. Also, it is possible to prevent foreign matter (e.g., insects) from exiting the chamber.

[0014] A ninth aspect of the present invention provides a ventilation system structure comprising a ceiling material, a chamber according to any one of the first to eighth aspects that is installed in a space above the ceiling, and a duct that is connected to the chamber. Since the chamber has the above-mentioned configuration, the ventilation system structure can be easily constructed.

[0015] A ventilation equipment installation method of a tenth aspect that solves the problem is a ventilation equipment installation method for a ventilation equipment having a chamber, the chamber comprising a first surface portion in which an air vent is provided, a second surface portion having an opening large enough to allow a duct to be inserted therethrough, a cover member having a duct connection port to which the duct is connected and covering the opening of the second surface portion, a third surface portion constituting a surface different from the first surface portion and the second surface portion, and a holding portion provided on the third surface portion and removably holding the cover member, the method including a connecting step of connecting the duct to the cover member held on the third surface portion with the duct inserted into the chamber from the opening, and a closing step of closing the opening of the second surface portion with the cover member to which the duct is connected.

[0016] According to this configuration, the duct can be drawn into the chamber and connected to the chamber inside the chamber. Furthermore, the duct can be connected to the cover member that is temporarily fixed to the third surface portion. Therefore, the efficiency of the construction work of the ventilation equipment can be improved compared to the case where the duct is connected to the outer surface of the chamber.

[0017] A ventilation equipment installation method of a tenth aspect is the ventilation equipment installation method of the tenth aspect, further comprising a chamber arranging step of arranging the chamber in the attic space, in which a ceiling opening is provided in a ceiling material at a position where the chamber is to be installed, and the chamber is arranged in the attic space through the ceiling opening, and the size of the ceiling opening is large enough that the chamber can be inserted and can be covered by a grill provided in the chamber.

[0018] When connecting a duct to the outer surface of a chamber, it is necessary to open a ceiling opening in the ceiling material that is larger than the size of the chamber. Furthermore, after the chamber is installed, it is necessary to fill the gap between the chamber and the ceiling opening with a plate material. In this regard, with the above-mentioned configuration, the duct can be drawn into the chamber and the chamber and the duct can be connected inside the chamber. Therefore, the size of the ceiling opening to be opened in the ceiling material can be reduced. [Brief description of the drawings]

[0019] [Figure 1] FIG. [Diagram 2] FIG. 2 is a perspective view of the chamber in a duct-connected state. [Diagram 3] FIG. 2 is a perspective view of the chamber with the lid member temporarily placed thereon. [Figure 4] FIG. 4 is a cross-sectional view of the chamber taken along line 4-4 in FIG. [Diagram 5] FIG. 2 is a perspective view of the chamber with the lid member removed. [Figure 6] FIG. [Figure 7] 1 is a cross-sectional view of a ventilation system when a chamber is placed in the attic space in accordance with a ventilation system installation method. [Figure 8] 1 is a plan view of a ceiling showing the relationship between a ceiling opening and a chamber when the chamber is placed in the ceiling space. FIG. [Figure 9] 1 is a cross-sectional view of a ventilation system when a cover member is placed in a chamber in a ventilation system installation method. FIG. [Figure 10] 1 is a cross-sectional view of a ventilation system when a duct is inserted into a chamber in a ventilation system installation method. FIG. [Figure 11] 1 is a cross-sectional view of the ventilation equipment when a duct with a lid member is pushed out of a chamber in a ventilation equipment installation method. FIG. [Figure 12] 10 is a cross-sectional view of the ventilation equipment, showing the installation work of attaching the cover member to the second surface portion in the ventilation equipment installation method. FIG. [Figure 13] 1 is a cross-sectional view of a ventilation system when a grill is attached to a chamber in a ventilation system installation method. FIG. [Figure 14] FIG. 13 is a perspective view of a first modified example of the chamber. [Figure 15] FIG. 11 is a perspective view of a second modified example of the chamber. [Figure 16] FIG. 13 is a perspective view of a third modified example of the chamber. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] First Embodiment The ventilation system structure 1, the chamber 6, and a ventilation system installation method will be described with reference to Figs. The ventilation equipment 2 is suspended from the slab of the building. The ventilation equipment 2 is provided in the attic space SA. In the case of a skeleton ceiling, the ventilation equipment 2 is exposed to the room. The ventilation equipment 2 moves air for the purpose of air conditioning or ventilation in the room.

[0021] As shown in FIG. 1, the ventilation equipment 2 includes an intake duct 5 (hereinafter simply referred to as "duct 5"), an air conditioner 4, a blow-out duct 7, a blow-out chamber 8, and an intake chamber 6 (hereinafter simply referred to as "chamber 6"). The ventilation equipment 2 passes the sucked air through a heat exchanger in the air conditioner 4, and then returns the air that has passed through the heat exchanger to the room. The ventilation equipment 2 may suck in outside air. The ventilation equipment 2 may suck in indoor air. The ventilation equipment 2 may exhaust air to the outside of the room. The ventilation equipment 2 may blow air into the room. The air conditioner 4 is an air conditioner, a dehumidifier, or a dryer. The air conditioner 4 may also include an air conditioner that does not include a heat exchanger. For example, the air conditioner 4 includes a ventilation fan.

[0022] [Ventilation equipment structure] The ventilation equipment structure 1 includes a ventilation equipment 2 in a building, and peripheral members of the ventilation equipment 2 at a location where the ventilation equipment 2 is installed. The peripheral members include a ceiling material 11. In this embodiment, the ventilation equipment structure 1 includes the ceiling material 11, a chamber 6 installed in the ceiling material 11, and a duct 5 connected to the chamber 6. The ceiling material 11 is provided with a ceiling opening 12 large enough to allow the chamber 6 to pass through.

[0023] [Chamber] The chamber 6 is configured to have a duct 5 connected thereto. In one example, the duct 5 having a telescopic structure is connected to the chamber 6. An example of the duct 5 having a telescopic structure is a flexible duct. The flexible duct has various structures. In one example, the flexible duct has a nonwoven fabric tube having a spiral steel wire and a heat-insulating layer covering the outer periphery of the nonwoven fabric tube. In another example, the flexible duct is formed of aluminum. In yet another example, the flexible duct has a corrugated structure.

[0024] 2 and 3, the chamber 6 includes a first surface portion 21, a second surface portion 22, a third surface portion 23 that constitutes a surface different from the first surface portion 21 and the second surface portion 22, and a cover member 50. The chamber 6 further includes a fourth surface portion 24 that faces the first surface portion 21, a fifth surface portion 25 that intersects with the fourth surface portion 24 and the second surface portion 22, and a sixth surface portion 26 that faces the fifth surface portion 25. In this embodiment, the first surface portion 21, the second surface portion 22, the third surface portion 23, the fourth surface portion 24, the fifth surface portion 25, and the sixth surface portion 26 are referred to as a chamber main body 6X.

[0025] The first surface portion 21 is provided with an air vent 21A. The air vent 21A is configured as an opening for drawing in outdoor air or indoor air. In this embodiment, the air vent 21A is configured to open substantially the entire first surface portion 21. In another example, the air vent 21A is configured to open a portion of the first surface portion 21.

[0026] The second surface portion 22 has an opening 22A large enough to allow the duct 5 to pass therethrough. When multiple ducts 5 are connected to the chamber 6, the opening 22A is configured so that all of the ducts 5 connected to the chamber 6 can be inserted therethrough. In this embodiment, two ducts 5 are connected to the chamber 6. The opening 22A is configured so as to be large enough to allow the two ducts 5 to pass therethrough. The second surface portion 22 is configured to be perpendicular to the first surface portion 21. The second surface portion 22 has a frame edge 22B that includes the edge of the opening 22A.

[0027] The second surface portion 22 has an attachment portion 22C. The attachment portion 22C is configured so that the cover member 50 can be attached. The inner surface of the attachment portion 22C is configured so as to contact the outer periphery of the cover member 50. The attachment portion 22C is provided around the opening 22A. Specifically, the attachment portion 22C is provided on the frame edge 22B. The attachment portion 22C has a fastening portion 22D that can fasten a fastening member from within the chamber 6. The fastening member includes a bolt or a rivet. The fastening portion 22D is configured as a bolt hole or a hole for a rivet.

[0028] Two bolt mounting portions 27 are provided on the fifth surface portion 25. The bolt mounting portions 27 are configured to engage with the suspension bolts 15 installed on the slab. The two bolt mounting portions 27 are arranged on the fifth surface portion 25 at a predetermined distance apart in the horizontal direction. Two bolt mounting portions 27 are provided on the sixth surface portion 26. The bolt mounting portions 27 are configured to engage with the suspension bolts 15 installed on the slab. The two bolt mounting portions 27 are arranged on the sixth surface portion 26 at a predetermined distance apart in the horizontal direction.

[0029] The third surface portion has a holding portion 40. The third surface portion is provided at a position facing the second surface portion 22. The third surface portion is configured to be perpendicular to the first surface portion .

[0030] The holding part 40 will be described with reference to Figs. 4 and 5. The holding part 40 holds the lid member 50 so that it can be removed from the third surface part 23. The holding part 40 holds the lid member 50 so that the outer surface of the lid member 50 to which the duct 5 is connected faces the opening 22A of the second surface part 22. The holding part 40 is provided on the inner surface of the third surface part 23. The holding part 40 includes a first hook 41, a second hook 42, a first fixing part 43, and a second fixing part 44. The first hook 41 and the second hook 42 protrude from the third surface part 23 and extend further upward. The first fixing part 43 and the second fixing part 44 have screw holes.

[0031] The first hook 41 is provided near the lateral end of the third surface portion 23. The second hook 42 is provided at a position opposite to the first hook 41 in the lateral direction on the third surface portion 23. The first fixing portion 43 is provided between the first hook 41 and the second hook 42, near the upper end of the third surface portion 23. The second fixing portion 44 is provided between the first hook 41 and the second hook 42, near the lower end of the third surface portion 23.

[0032] [Cover parts] The lid member 50 will be described with reference to Fig. 6. The lid member 50 closes the opening 22A of the second surface portion 22. Specifically, the lid member 50 closes the opening 22A of the second surface portion 22 with the duct 5 connected to the lid member 50. The chamber 6 is formed by closing the opening 22A with the lid member 50.

[0033] The lid member 50 has a duct connection port 51 to which the duct 5 is connected. The lid member 50 may be provided with one or more additional duct connection ports 52 in addition to the duct connection port 51. The additional duct connection port 52 is connected to a duct 5 different from the duct 5 connected to the duct connection port 51. In this embodiment, the lid member 50 is provided with the duct connection port 51 and the additional duct connection port 52. The additional duct connection port 52 has the same structure as the duct connection port 51.

[0034] The cover member 50 has a plate portion 53 in which the duct connection port 51 is provided. The plate portion 53 is formed to a size that closes the opening 22A of the second surface portion 22. The plate portion 53 is provided with an attachment hole 54 for attaching the cover member 50 to the second surface portion 22. The attachment hole 54 is provided in the plate portion 53 such that the attachment hole 54 and the attachment portion 22C of the second surface portion 22 face each other when the cover member 50 is positioned to close the opening 22A of the second surface portion 22. The attachment hole 54 is configured so that a fastening member can be inserted therethrough.

[0035] The plate portion 53 is provided with an engagement portion 55 that engages with the holding portion 40. The engagement portion 55 includes a first hole 55A that is hooked onto the first hook 41, a second hole 55B that is hooked onto the second hook 42, a first fixed portion 55C, and a second fixed portion 55D. The first fixed portion 55C is configured to be detachably fixed to the first fixing portion 43 of the holding portion 40 by a fastening member. The second fixed portion 55D is configured to be detachably fixed to the second fixing portion 44 of the holding portion 40 by a fastening member. The first fixed portion 55C and the second fixed portion 55D are configured as holes through which the fastening member is inserted.

[0036] The cover member 50 has a connection port member 56. The connection port member 56 protrudes from the duct connection port 51. The connection port member 56 is configured to have a shape that fits the end of the duct 5. For example, if the end of the duct 5 is configured to be circular, the connection port member 56 is similarly configured to be circular. If the end of the duct 5 is configured to be rectangular, the connection port member 56 is similarly configured to be rectangular.

[0037] The cover member 50 has an additional connection port member 57. The additional connection port member 57 protrudes from the additional duct connection port 52. The additional connection port member 57 is configured to have a shape that fits the end of the duct 5. The additional connection port member 57 has substantially the same structure as the connection port member 56.

[0038] The plate portion 53 and the connection port member 56 are integrally formed. For example, the connection port member 56 is welded to the plate portion 53. Alternatively, the connection port member 56 is fixed to the plate portion 53 with bolts or rivets.

[0039] The chamber 6 may further include a grill 60. The grill 60 is provided at the vent 21A. The grill 60 is attached to the chamber 6 so as to fit into the ceiling opening 12 after the duct 5 is connected to the chamber 6.

[0040] [Ventilation equipment installation method] 7 to 13, a ventilation equipment installation method for a ventilation equipment 2 having a chamber 6 will be described. In the ventilation equipment installation method, the chamber 6 having the above-described structure is used. The chamber 6 includes at least a first surface 21 in which the ventilation opening 21A is provided, a second surface 22 having an opening 22A, a third surface 23, a lid member 50, and a holding part 40 that holds the lid member 50. The first surface 21, the second surface 22, the third surface 23, the lid member 50, and the holding part 40 have the structures shown above.

[0041] The ventilation equipment installation method includes a connecting step and a closing step. The ventilation equipment installation method may include a temporary fixing step of the cover member 50. The ventilation equipment installation method may include a chamber arrangement step. The ventilation equipment installation method may include a grill installation step.

[0042] [Chamber placement process] The chamber arrangement step will be described with reference to Figures 7 and 8. In the chamber arrangement step, the chamber 6 is arranged in the attic space SA. The procedure will be described below.

[0043] In the chamber arrangement step, first, a ceiling opening 12 is provided in the ceiling material 11 at the position where the chamber 6 is to be installed. The size of the ceiling opening 12 is formed to be large enough that the chamber 6 can be inserted and that it can be covered by a grill 60 provided in the chamber 6.

[0044] The ceiling opening 12 is formed in a rectangular shape. The ceiling opening 12 has a first edge 12A, a second edge 12B opposite the first edge 12A, a third edge 12C, and a fourth edge 12D opposite the third edge 12C. Hereinafter, the state in which the chamber 6 is disposed in the attic space SA will be referred to as a "chamber disposition state."

[0045] The first edge 12A is configured so as to extend along the second surface portion 22 in a plan view when in the chamber arrangement state. The first edge 12A is located near the second surface portion 22 in a plan view when in the chamber arrangement state.

[0046] The second edge 12B is configured so as to extend along the third surface portion 23 in a plan view when in the chamber arrangement state. The second edge 12B is located near the third surface portion 23 in a plan view when in the chamber arrangement state.

[0047] In the chamber arrangement state, the third edge 12C is configured to be parallel to the fifth surface portion 25 in a plan view. The third edge 12C is formed at a position away from the fifth surface portion 25 so that, in the chamber arrangement state, an anchor connection gap SB into which a hand can be inserted is configured between the fifth surface portion 25 and the third edge 12C in a plan view.

[0048] In the chamber arrangement state, the fourth edge 12D is configured to be parallel to the sixth surface portion 26 in a plan view. The fourth edge 12D is formed at a position away from the sixth surface portion 26 so that, in the chamber arrangement state, an anchor connection gap SB into which a hand can be inserted is configured between the sixth surface portion 26 and the fourth edge 12D in a plan view.

[0049] The anchor connection gap SB is a gap configured so that an operator's hand can enter when engaging the bolt mounting portion 27 of the chamber 6 with the suspension bolt 15. The anchor connection gap SB is filled by the grill 60 or other decorative member in the grill mounting process.

[0050] As described above, when the ceiling opening 12 is in the chamber arrangement state, in a plan view, there is no gap other than the anchor connection gap SB between the periphery of the ceiling opening 12 and the chamber 6 (hereinafter referred to as a "compact structure"). This differs from the prior art. In the prior art, the ceiling opening 12 is configured so that the anchor connection gap SB and the duct connection gap for connecting the duct 5 and the chamber 6 are provided between the chamber 6 and the periphery of the ceiling opening 12.

[0051] After forming the ceiling opening 12, the worker places the chamber 6 in the attic space SA. The ceiling opening 12 has an anchor connection gap SB. This allows the worker to engage the bolt mounting portion 27 of the chamber 6 with the hanging bolt 15. The worker adjusts the height of the chamber 6 while engaging the bolt mounting portion 27 of the chamber 6 with the hanging bolt 15, and then tightens the nut provided on the hanging bolt 15. In this way, the chamber 6 is fixed to the hanging bolt 15. In this manner, the worker places the chamber 6 in the attic space SA through the ceiling opening 12.

[0052] [Temporary fixing process for lid parts] As shown in Fig. 9, in the process of temporarily fixing the lid member 50, after the chamber 6 is placed in the attic space SA through the ceiling opening 12, the lid member 50 is held in a temporarily fixed state on the third surface portion 23. The temporarily fixed state refers to a state in which the lid member 50 is held removably without being fixed by bolts or the like. One example of the temporarily fixed state is a state in which the lid member 50 is held on the third surface portion 23 by being caught. In this embodiment, holding the lid member 50 on the third surface portion 23 in a temporarily fixed state is also referred to as "temporarily fixed".

[0053] Until the time of installing the chamber 6, the cover member 50 may be packed together with the chamber main body 6X, or may be packed separately from the chamber main body 6X.

[0054] In one example, the lid member 50 is fixed to the third surface portion 23 during transportation. Specifically, the lid member 50 is fixed to the first fixing portion 43 and the second fixing portion 44 of the holder 40 by a fastening member. At this time, the first hole 55A of the lid member 50 is hooked on the first hook 41 of the third surface portion 23. Also, the second hole 55B of the lid member 50 is hooked on the second hook 42 of the third surface portion 23. In the case of such packaging, the third surface portion 23 can be held in a provisionally fixed state by removing the fastening member. That is, the lid member 50 is provisionally fixed to the third surface portion 23.

[0055] In another example, the lid member 50 is packaged separately without being fixed to the third surface portion 23. In this case, in the temporary fixing step, the lid member 50 is removed from the separate packaging box. Then, the lid member 50 is temporarily fixed to the third surface portion 23. Specifically, the first hole 55A of the lid member 50 is hooked onto the first hook 41 of the third surface portion 23, and the second hole 55B of the lid member 50 is hooked onto the second hook 42 of the third surface portion 23. In this manner, the lid member 50 is temporarily fixed to the third surface portion 23.

[0056] [Connection process] In the connecting step, the duct 5 is connected to the cover member 50 held by the third surface portion 23 in a state in which the duct 5 is inserted into the chamber 6 from the opening 22A.

[0057] 10, the worker extends the duct 5 to bring the end of the duct 5 closer to the duct connection port 51 of the cover member 50. Then, the worker connects the end of the duct 5 to the duct connection port 51 of the cover member 50 with a belt. In this operation, the cover member 50 is held by the third surface portion 23, so the worker does not need to hold the cover member 50 and the duct 5 at the same time, reducing the burden on the worker.

[0058] [Closing process] In the closing step, the opening 22A of the second surface portion 22 is closed by the cover member 50 to which the duct 5 is connected.

[0059] Specifically, the worker removes the lid member 50 from the holder 40. Then, the worker pushes the duct 5 out of the chamber 6, thereby bringing the lid member 50 closer to the second surface portion 22 of the chamber 6.

[0060] 11 and 12, the worker closes the opening 22A of the second surface portion 22 with the lid member 50. Furthermore, the worker fastens the lid member 50 to the second surface portion 22 with a fastening member while aligning the mounting hole 54 of the lid member 50 with the mounting portion 22C of the second surface portion 22 (see FIG. 12).

[0061] [Grill installation process] 13, in the grill attachment step, the grill 60 is attached to the chamber 6 through the ceiling opening 12. The chamber 6 closes the gap between the chamber 6 and the ceiling opening 12.

[0062] <Action of this embodiment> The chamber 6 has a second surface portion 22 having an opening 22A. The opening 22A is configured so that the duct 5 can be inserted therethrough. This allows the duct 5 to be drawn into the chamber 6. The opening 22A of the second surface portion 22 is closed by the lid member 50. The lid member 50 has a duct connection port 51 to which the duct 5 is connected. The lid member 50 is held by the third surface portion 23. Therefore, the duct 5 can be connected to the lid member 50 while the lid member 50 is held by the third surface portion 23. This allows the worker to perform the connection work while pulling the duct 5 to the lid member 50, rather than performing the connection work while holding both the lid member 50 and the duct 5. In this way, the burden on the worker can be reduced.

[0063] Furthermore, the chamber 6 has a structure that allows the duct 5 to be attached within the chamber 6. This allows the ceiling opening 12 to have a compact structure. Due to the compact structure of the ceiling opening 12, the ceiling opening 12 opened in the ceiling material 11 can be made smaller than in the past. Making the ceiling opening 12 smaller contributes to making the grill 60 more compact. Furthermore, when installing the ventilation equipment 2, the work of filling the gap that occurs between the ceiling opening 12 and the chamber 6 can be reduced.

[0064] <Effects of this embodiment> (1) The chamber 6 includes a second surface 22 having an opening 22A large enough to allow the duct 5 to pass through, and a lid member 50 that closes the opening 22A. The lid member 50 has a duct connection port 51 to which the duct 5 is connected. The third surface 23 of the chamber 6 has a holder 40 that removably holds the lid member 50.

[0065] According to this configuration, the opening 22A of the second surface portion 22 is larger than the duct connection port 51. Therefore, the duct 5 can be easily inserted into the chamber 6. Furthermore, the cover member 50 can be temporarily fixed to the third surface portion 23 by the holding portion 40. The temporary fixation makes it difficult for the cover member 50 to move. In this way, the duct 5 can be connected to the cover member 50 in a state where the cover member 50 is temporarily fixed to the third surface portion 23, so that the operation of connecting the duct 5 to the cover member 50 can be easily performed.

[0066] (2) The third surface 23 of the chamber 6 is provided at a position facing the second surface 22. With this configuration, the duct 5 can be connected to the lid member 50 held by the third surface 23 by pulling the duct 5 linearly from the second surface 22. Since there is no need to bend the duct 5 in this way, the task of connecting the duct 5 to the lid member 50 can be easily performed.

[0067] (3) The second surface portion 22 of the chamber 6 has an attachment portion 22C. The attachment portion 22C is provided around the opening 22A. The attachment portion 22C is configured as a portion to which the lid member 50 is attached. The inner surface of the attachment portion 22C is configured to contact the outer periphery of the lid member 50. The attachment portion 22C has a fastening portion 22D to which a fastening member can be fastened from within the chamber 6. With this configuration, the lid member 50 can be fixed to the second surface portion 22 from within the chamber 6. Therefore, the duct 5 can be fixed to the chamber 6 with the chamber 6 installed in the ceiling space SA. Specifically, with the chamber 6 installed in the ceiling space SA, the worker pulls the duct 5 into the chamber 6. Then, the duct 5 and the lid member 50 are connected in the chamber 6. After this, the lid member 50 connected to the duct 5 is fixed to the second surface portion 22 from within the chamber 6.

[0068] (4) The cover member 50 has a plate portion 53 in which the duct connection port 51 is provided, and a connection port member 56 protruding from the duct connection port 51. The plate portion 53 and the connection port member 56 are integrally formed. With this configuration, the duct 5 can be easily connected to the cover member 50.

[0069] (5) In the cover member 50, the plate portion 53 and the connection port member 56 may be configured separately. With this configuration, the duct 5 can be connected to the plate portion 53 in a state in which the connection port member 56 is attached to the duct 5.

[0070] (6) The cover member 50 is provided with one or more additional duct connection ports 52 to which another duct 5 different from the duct 5 is connected. With this configuration, a plurality of ducts 5 can be connected to the chamber 6.

[0071] (7) The chamber 6 further includes a grill 60. The grill 60 is provided at the ventilation opening 21A. This configuration can prevent foreign objects from entering the chamber 6. In addition, foreign objects (e.g., insects) can be prevented from exiting the chamber 6.

[0072] (8) The ventilation equipment structure 1 includes a ceiling material 11, the chamber 6 having the above-mentioned configuration that is installed in the attic space SA, and the duct 5 that is connected to the chamber 6. According to this configuration, since the chamber 6 has the above-mentioned configuration, the ventilation equipment structure 1 can be easily constructed.

[0073] (9) The ventilation equipment installation method includes a connecting step and a closing step. In the connecting step, the duct 5 is inserted into the chamber 6 from the opening 22A, and then the duct 5 is connected to the cover member 50 held on the third surface 23. In the closing step, the opening 22A of the second surface 22 is blocked by the cover member 50 to which the duct 5 is connected.

[0074] According to this configuration, the duct 5 can be drawn into the chamber 6, and the chamber 6 and the duct 5 can be connected inside the chamber 6. Furthermore, the duct 5 can be connected to the cover member 50 in a temporarily fixed state that is temporarily fixed to the third surface portion 23. Therefore, the efficiency of the construction work of the ventilation equipment 2 can be improved compared to the case where the duct 5 is connected to the outer surface of the chamber 6.

[0075] (10) The ventilation equipment installation method may further include a chamber arranging step of arranging the chamber 6 in the attic space SA. In the chamber arranging step, a ceiling opening 12 is provided in the ceiling material 11 at the position where the chamber 6 is to be installed. Then, in the chamber arranging step, the chamber 6 is arranged in the attic space SA through the ceiling opening 12. The size of the ceiling opening 12 is such that the chamber 6 can be inserted and that it can be covered by a grill 60 provided in the chamber 6.

[0076] When connecting the duct 5 to the outer surface of the chamber 6, it is necessary to open a ceiling opening 12 in the ceiling material 11 that is larger than the size in which the chamber 6 can be placed. Furthermore, after the chamber 6 is installed, it is necessary to fill the gap between the chamber 6 and the ceiling opening 12 with a board material. In this regard, according to the above-mentioned configuration, the duct 5 can be drawn into the chamber 6, and the chamber 6 and the duct 5 can be connected inside the chamber 6. Therefore, the size of the ceiling opening 12 opened in the ceiling material 11 can be reduced.

[0077] <Modification> In addition to the above-described embodiment, the chamber 6, the ventilation equipment structure 1, and the ventilation equipment installation method of the present disclosure may be configured as, for example, the following modified examples, or a combination of at least two modified examples that are not mutually contradictory.

[0078] In the embodiment, the third surface portion 23 is provided at a position facing the second surface portion 22, but the position of the third surface portion 23 is not limited.

[0079] For example, as shown in Fig. 14, the third surface portion 23 may be provided at a position intersecting with the second surface portion 22. In this case, the lid member 50 may be rotatably supported on the chamber 6 by a hinge 70. The lid member 50 is configured to close the opening 22A of the second surface portion 22 by rotation. When the lid member 50 is positioned on the third surface portion 23 by rotation, it is held by a holding portion 40 provided on the third surface portion 23. With this configuration, the lid member 50 is supported on the chamber 6, and therefore, it is possible to prevent the lid member 50 from falling.

[0080] In the chamber 6, the total number of connection ports, which is the sum of the number of duct connection ports 51 and the number of additional duct connection ports 52, is not particularly limited. 15, the chamber 6 may have one duct connection port 51 and two additional duct connection ports 52. Any one of the two additional duct connection ports 52 may be blocked by a blocking member 71.

[0081] 16, a plurality of lid members 50 may be provided on the second surface 22 of the chamber 6. A plurality of openings 22A are provided on the second surface 22. Each of the plurality of openings 22A is closed by a lid member 50.

[0082] The above describes embodiments and their variations of the chamber 6, the ventilation equipment structure 1, and the ventilation equipment installation method. However, it will be understood that various modifications in form and details are possible without departing from the spirit and scope of the chamber 6, the ventilation equipment structure 1, and the ventilation equipment installation method described in the claims. [Explanation of symbols]

[0083] SA...attic space, 1...ventilation equipment structure, 2...ventilation equipment, 5...duct, 6...chamber, 7...duct, 11...ceiling material, 12...ceiling opening, 21...first surface, 21A...vent, 22...second surface, 22A...opening, 22C...mounting portion, 22D...fastening portion, 23...third surface, 40...holding portion, 50...cover member, 51...duct connection port, 52...additional duct connection port, 53...plate portion, 56...connection port member, 60...grill.

Claims

1. A chamber (6) to which the duct (5) is connected, A first surface portion (21) having a ventilation hole (21A) provided therein; A second surface portion (22) having an opening (22A) large enough to allow the duct (5) to pass therethrough; a cover member (50) that closes the opening (22A) of the second surface portion (22); and a third surface portion (23) constituting a surface different from the first surface portion (21) and the second surface portion (22), The cover member (50) has a duct connection port (51) to which the duct (5) is connected, The third surface portion (23) has a holding portion (40) that removably holds the lid member (50). Chamber.

2. The third surface portion (23) is provided at a position opposite to the second surface portion (22). The chamber of claim 1.

3. The third surface portion (23) is provided at a position intersecting the second surface portion (22), The cover member (50) is rotatably supported in the chamber (6). The chamber of claim 1.

4. The second surface portion (22) has an attachment portion (22C) provided around the opening portion (22A) and to which the cover member (50) is attached, The inner surface of the mounting portion (22C) is configured to come into contact with the outer periphery of the cover member (50), The mounting portion (22C) has a fastening portion (22D) to which a fastening member can be fastened from within the chamber (6). The chamber of claim 1.

5. The cover member (50) has a plate portion (53) in which the duct connection port (51) is provided, and a connection port member (56) protruding from the duct connection port (51), The plate portion (53) and the connection port member (56) are integrally formed. The chamber of claim 1.

6. The cover member (50) has a plate portion (53) in which the duct connection port (51) is provided, and a connection port member (56) protruding from the duct connection port (51), The plate portion (53) and the connection port member (56) are configured separately. The chamber of claim 1.

7. The cover member (50) is provided with one or more additional duct connection ports (52) to which other ducts (5) different from the duct (5) are connected. The chamber of claim 1.

8. Further comprising a grill (60); The grill (60) is provided at the vent (21A). The chamber of claim 1.

9. The present invention comprises a ceiling material (11), a chamber (6) according to any one of claims 1 to 8 installed in an attic space (SA), and a duct (5) connected to the chamber (6). Ventilation equipment structure.

10. A method for installing a ventilation system (2) having a chamber (6), comprising the steps of: The chamber (6) comprises a first surface portion (21) having an air vent (21A), a second surface portion (22) having an opening portion (22A) large enough to allow a duct (5) to be inserted therethrough, a cover member (50) having a duct connection port (51) to which the duct (5) is connected and covering the opening portion (22A) of the second surface portion (22), a third surface portion (23) constituting a surface different from the first surface portion (21) and the second surface portion (22), and a holding portion (40) provided on the third surface portion (23) and removably holding the cover member (50); a connecting step of connecting the duct (5) to the cover member (50) held by the third surface portion (23) in a state in which the duct (5) is inserted into the chamber (6) from the opening (22A); a closing step of closing the opening (22A) of the second surface portion (22) with the cover member (50) to which the duct (5) is connected, How to install ventilation equipment.

11. The method further includes a chamber arrangement step of arranging the chamber (6) on the ceiling, In the chamber arrangement step, a ceiling opening (12) is provided in a ceiling material (11) at a position where the chamber (6) is to be installed, and the chamber (6) is arranged in an attic space (SA) through the ceiling opening (12); The size of the ceiling opening (12) is such that the chamber (6) can be inserted therein and that the chamber (6) can be covered by a grill (60) provided in the chamber (6). The ventilation system installation method according to claim 10.

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