JP4730012B2 - Line type air inlet chamber - Google Patents

Description

  The present invention relates to a line-type air restriction chamber disposed between one end of a duct and a line-type air restriction port (line-type diffuser, linear air outlet).

  When air is sent into the room from the duct, air may be sent into the room from the line type air inlet through the line type air inlet chamber. For example, as shown in FIG. 12, a box-type line air inlet chamber 101 having a narrow and narrow depth is hung from a concrete upper wall or the like and arranged at a predetermined position. An elongated opening window W1 in which the outlet 101a (lower opening) is located is provided in the ceiling board W. The narrow line-type air inlet 102 that covers the opening window W1 is attached (connected) to the line-type air inlet chamber 101 via the mounting plate 103, and the line-type air inlet chamber 101 is connected. One end of the air conditioning duct D is attached to the inflow port 101b. As a result, the line-type air vent 102 is disposed with the surface positioned substantially on the same plane as the ceiling plate W, and the air from the air conditioning duct D passes through the line-type air vent chamber 101 and is line-type controlled. It is sent into the room from the air vent 102 (see, for example, Patent Document 1).

In addition, the position of the bolt hole (hole into which the bolt 104 is inserted) provided in the line type air control port 102 varies depending on the type and size of the line type air control port 102. Therefore, the mounting plate 103 can be disposed at a desired position so that various line-type air vents 102 can be mounted. That is, as shown in FIG. 13, a pair of bent portions 101 c are continuously formed along the longitudinal direction at the opening end of the outflow port 101 a of the line type air restriction chamber 101. Then, after the line type air inlet chamber 101 is suspended from the upper wall of the concrete or the like, the mounting plate 103 is placed in the outlet 101a in a state where both the foot plates 103a of the mounting plate 103 having elasticity (elasticity) are narrowed. The both foot plates 103a are opened. Then, both foot plates 103a spread and the tip portions of both foot plates 103a are locked to the bent portions 101c. Thereby, the attachment plate 103 is disposed at a desired position. The line-type air vent chamber 101 is made of a metal such as a galvanized iron plate, and the main body 101d is covered with glass wool to enhance heat insulation (heat insulation) and sound deadening.
Japanese Patent Laid-Open No. 10-111005

  By the way, when the above-described line-type air inlet chamber or line-type air inlet is provided, a position to be provided in advance is determined (designed), and a ceiling board, a wall board, or the like is previously provided according to this position. An open window is provided. Then, for example, after the line type air inlet chamber is suspended from the concrete upper wall or the like and disposed at a predetermined position as described above, the ceiling plate is attached. However, the position of the opening window of the ceiling plate and the position of the outlet of the line type air control port chamber may not coincide with each other due to a processing error of the opening window or a mounting construction error of the line type air control chamber. In such a case, the opening window is widened until the outlet of the line type air outlet chamber is located, and further, the gap formed between the outlet and the outlet is filled. It was necessary to perform work such as rehanging and shifting the position, which required a great deal of labor and time.

  Further, in the above-described line type air inlet chamber, the mounting plate is attached (arranged) in order to fix the both foot plates of the mounting plate to the bent portion of the line type air inlet chamber, and thus Installation of the line type air inlet may become unstable. In other words, when both foot plates of the mounting plate are not firmly locked to the bent portion, or when only one foot plate is locked to the bent portion, the mounting plate mounting becomes unstable. Since it is difficult for a person to confirm such a state, a line type air vent is attached as it is. For this reason, the attachment of the line type air inlet becomes unstable, and there is a possibility that the line type air inlet will come off when an earthquake or the like occurs.

SUMMARY OF THE INVENTION An object of the present invention is to provide a line type air inlet chamber capable of adjusting the position of an outlet according to the position of an opening window provided on a ceiling plate, a wall plate or the like.

  In order to achieve the above object, the invention according to claim 1 is provided between the one end portion of the duct and the line type air control port, and sends the air from the duct to the line type air control port. An opening chamber comprising: a chamber body to which a duct is connected; an upper cover disposed above the chamber body; and a skirt disposed below the chamber body and connected to a line-type air vent. ing. The chamber body is a cylinder with a rectangular cross section, the upper cover covers the upper opening of the chamber body, and the skirt is a cylinder with a cross-sectional shape similar to that of the chamber body. On the upper edge of the first main body plate portion and the second main body plate portion, a gap is formed on the upper side of the main body along the upper edge, and the upper cover is engaged with the upper side of the main body. The upper side of the main body and the side of the cover side are rotatably engaged with each other. A first skirt plate of a skirt located below the first main body plate portion is formed at the lower end edge portion of the first main body plate portion and the second main body plate portion along the lower end of the main body. The upper end edge of the skirt portion and the second skirt plate portion of the skirt located below the second body plate portion is formed with a skirt on the skirt side that engages with the bottom of the main body, The skirt side is engaged with a slidable and rotatable. A first main body plate portion and a second main body plate portion are disposed so that the pair of main body lower sides can move in parallel in a horizontal direction orthogonal to the lower portion of the main body, and a skirt is provided on the lower side of the main body. The lower side of the main body is movable in the direction orthogonal to the bottom as the bottom of the main body moves in parallel.

  According to a second aspect of the present invention, in the line type air inlet chamber according to the first aspect, the chamber main body has a first U-shaped cross section having first side plate portions on both side edges of the first main body plate portion. A main body and a second main body having a U-shaped cross section having second side plate portions on both side edges of the second main body plate portion, and in a state where the first side plate portion and the second side plate portion partially overlap each other The first main body and the second main body are rotated in parallel around the cover side, and the bottom of the pair of main bodies moves in parallel.

  According to a third aspect of the present invention, in the line type air inlet chamber according to the first or second aspect, the lower opening of the chamber main body and the upper opening of the skirt in the moving direction along the bottom of the skirt main body An air escape prevention member is provided that covers the non-polymerization opening that does not overlap with the portion.

  According to a fourth aspect of the present invention, in the line type air inlet chamber according to the third aspect, the air escape preventing member is plate-shaped, and the lower side of the main body of the skirt is a stopper at the end in the moving direction along the seam. The air escape preventing member is disposed between the lower end of the chamber body and the upper end of the skirt, and the stopper hits the lower end of the chamber body or the upper end of the skirt, The lower side is characterized in that the movable range along the seam is restricted.

  According to the first aspect of the present invention, the lower side of the main body can be moved in the first direction along the seam, and the lower side of the main body can be moved horizontally in parallel to move the first skirt. It can be moved in a second direction orthogonal to the direction. For this reason, the position of the opening window provided on the ceiling plate or the wall plate and the position of the skirt (outlet) of the line-type air vent opening chamber provided on the concrete upper wall or the like are shifted. Even so, the position of the skirt can be adjusted in accordance with the position of the opening window. As a result, even when the positions of the opening window and the skirt are shifted, work such as widening the opening window or filling the gap is unnecessary, and the working time and work labor can be greatly reduced.

  According to the second aspect of the present invention, the first main body and the second main body are pivoted in parallel around the cover side, so that the lower side of the pair of main bodies is the lower side. It moves in parallel in the horizontal direction (second direction) orthogonal to (first direction). Then, along with this parallel movement, the skirt can be moved in the second direction.

  According to the invention described in claim 3, since the air escape preventing member covers the non-polymerization opening, it is possible to prevent air from flowing out from the non-polymerization opening.

  According to the invention described in claim 4, since the movable range (slidable range) of the lower side of the main body of the skirt is regulated by the stopper of the air escape preventing member, it is formed along with the sliding of the skirt. The size of the non-polymerized opening that can be made is also limited by the stopper. As a result, the skirt is slid long to form a large non-polymerized opening, that is, the overlapping opening where the lower opening of the chamber body and the upper opening of the skirt overlap is reduced, and the required air It is prevented that the cross-sectional area of the flow path is not ensured.

  Hereinafter, the present invention will be described based on the illustrated embodiments.

  FIG. 1 is a front view showing a line type air inlet chamber 1 according to an embodiment of the present invention, and FIG. 2 is a side view thereof. The line-type air restriction chamber 1 is mainly arranged in a chamber main body 2 to which an air conditioning duct D (duct) is connected, an upper cover 3 disposed above the chamber main body 2, and a lower portion of the chamber main body 2. A skirt 4 (outlet) is provided, and a mounting plate 5 to which a breath line BL (line-type air vent) is attached. As will be described later, the air-conditioning duct D is disposed between one end portion of the air-conditioning duct D and the breath line BL, and sends air from the air-conditioning duct D to the breath line BL.

  The chamber body 2 is a rectangular tube having a long and narrow cross section, and includes a pair of first body 21 and second body 22 that face each other. Each of the first main body 21 and the second main body 22 has a first main body plate portion 21a and a second main body plate portion 22a, which are a pair of plate portions (long surface portions) facing each other, and on both side edges thereof. A first side plate portion 21b and a second side plate portion 22b are provided, and the cross section is U-shaped. The first side plate portion 21b and the second side plate portion 22b are partly overlapped and formed in a cylindrical shape. That is, as shown in FIG. 3, the insertion plate 23 is provided (joined) inside the first side plate portion 21b, and the second side plate portion 22b is inserted between the insertion plate 23 and the first side plate portion 21b. Thus, the first side plate portion 21b and the second side plate portion 22b, that is, the first main body 21 and the second main body 22 are movable.

  In addition, upper ends 21c and 22c on the upper side of the main body along the upper end edge are formed at the upper end edge portions of the first main body plate portion 21a and the second main body plate portion 22a, respectively. On the upper side of the main body, the curls 21c and 22c are curled spirals (spinned), and the cover side, which will be described later, is formed so as to engage with the curls 31a. Further, at the lower end edge of the first main body plate portion 21a and the second main body plate portion 22a, the upper body upper side is similar to the bottom 21c and 22c along the lower end edge. The lower side of the main body is formed so that the holes 21d and 22d are engaged with the holes 41a and 42a on the skirt side which will be described later. In addition, an elliptical inflow opening 21e is formed in the central portion of the first main body plate portion 21a, and a connecting cylinder 24 to which the air conditioning duct D is connected with the same inner shape as the inflow opening 21e is concentric with the inflow opening 21e. It is joined to.

  The upper cover 3 has an elongated cup shape that covers the upper opening of the chamber body 2, and the upper side of the upper body 3 is at the lower edge of the side wall 31 positioned above the first body plate portion 21 a and the second body plate portion 22 a. A pair of cover sides engaged with 21c and 22c is formed with a flange 31a. The upper side of the body 21c and 22c and the cover side 31a are rotatably engaged. That is, on the cover side, the first main body 21 and the second main body 22 can be rotated around the flange 31a. Further, on both sides of the upper plate portion 32 in the longitudinal direction, suspension bolt holes (not shown) for inserting suspension bolts H described later are formed.

  The skirt 4 has a cylindrical shape having substantially the same cross-sectional shape as that of the chamber body 2, and is disposed in a state of being connected to the lower end portion of the chamber body 2. That is, at the upper edge of the first skirt plate portion 41 located below the first body plate portion 21a and the second skirt plate portion 42 located below the second body plate portion 22a, On the skirt side engaged with the screws 21d and 22d, screws 41a and 42a are formed. Further, the lower side of the main body is engaged with the holes 21d and 22d and the cover side with the holes 41a and 42a so as to be slidable and rotatable. That is, the lower side of the main body can slide the skirt 4 along the holes 21d and 22d, and the lower side of the main body can rotate the skirt 4 around the holes 21d and 22d (the cover side is centered on the holes 41a and 42a). The first main body 21 and the second main body 22 can be rotated).

  With such a configuration, the skirt 4 can move (slide) along the bottoms 21d and 22 on the lower side of the main body, and can move in the direction orthogonal to the bottoms 21d and 22d on the lower side of the main body. That is, as shown in FIG. 4, by rotating the first main body 21 and the second main body 21 in parallel around the cover 31a on the cover side, the holes 21d and 22d on the lower side of the pair of main bodies 21 The sides move in parallel in the horizontal direction perpendicular to the screws 21d and 22d. With this parallel movement, the skirt 4 moves in the horizontal direction perpendicular to the bases 21d and 22d on the lower side of the main body. In this way, the position of the skirt 4 can be adjusted (moved) vertically and horizontally (X-axis direction and Y-axis direction) on the horizontal plane.

  Further, between the lower end portion of the chamber body 2 and the upper end portion of the skirt 4, air escape prevention plates 6 (air escape prevention members) are disposed at both end portions in the longitudinal direction. The air escape prevention plate 6 has a plate shape as shown in FIG. 5, and the longitudinal direction of the main plate 6a, that is, the lower side of the main body of the skirt 4 protrudes in the vertical direction at both ends in the moving direction along the holes 21d and 22d. A stopper 6b is formed. The width of the main plate 6a is large enough to cover the width direction of the lower opening of the chamber body 2 and the width direction of the upper opening of the skirt 4. The distance between the stoppers 6b and 6b is below the body of the skirt 4. The side is an allowable moving distance (movable range) along the holes 21d and 22d. That is, even when the skirt 4 is slid by the distance between the stoppers 6b and 6b (allowable movement distance), a certain overlapping opening is ensured where the lower opening of the chamber body 2 and the upper opening of the skirt 4 overlap. It has become so. Then, when the skirt 4 is slid along the bottoms 21d and 22 on the lower side of the main body, as shown in FIG. 6, one (right side in the figure) the air escape prevention plate 6 moves together with the skirt 4, and the chamber main body 2 A non-polymerized opening (a part of the upper opening of the skirt 4) where the lower opening and the upper opening of the skirt 4 do not overlap is covered. The other (left side in the figure) air escape prevention plate 6 stays and covers a part of the lower opening of the chamber body 2 which is a non-polymerization opening. When the skirt 4 is further slid, the stopper 6b of one (right side in the figure) of the air escape prevention plate 6 hits the lower end of the chamber body 2, and the other (left side in the figure) stopper 6b of the air escape prevention plate 6 Hits the upper end of the skirt 4 and the slidable range of the skirt 4 is restricted.

  Furthermore, rail-shaped sandwiching portions 41 b and 42 b extending in the longitudinal direction are formed inside the first skirt plate portion 41 and the second skirt plate portion 42. As shown in FIG. 7, the sandwiching portions 41b and 42b have a U-shaped cross section, and the sandwiching portions 41b and 42b are formed in parallel. Then, the mounting plate 5 as shown in FIGS. 7 and 8 is sandwiched between the sandwiching portions 41b and 42b.

  The mounting plate 5 includes a lower plate portion 51 positioned on the lower edge side of the skirt 4 and an upper plate portion 52 positioned above the lower plate portion 51. The lower plate portion 51, the upper plate portion 52, Both end portions of the upper plate portion 52 are joined, and the central portion of the upper plate portion 52 rises in a bridge shape. In addition, a guide part 51a that is burring in a cylindrical shape is formed at the center of the lower plate part 51, and guides a fixing bolt BL1 (screwing member) that fixes a breeze line BL described later. . Further, the upper plate portion 52 is formed with a female screw portion 52a (a screwed portion) to which the fixing bolt BL1 is screwed, coaxially with the guide portion 51a. The mounting plate 5 has two ends 5a and 5a so that both end portions 5a and 5a are sandwiched (gripped in a sandwiched state) by the sandwiching portions 41b and 42b and can be slid along the sandwiching portions 41b and 42b. It is arranged.

  The line type air inlet chamber 1 is made of a metal such as a zinc iron plate, and the chamber body 2 and the upper cover 3 are covered with glass wool (not shown) in order to improve heat insulation (heat insulation) and noise reduction. ing.

  Next, a method of arranging the line type air inlet chamber 1 having such a configuration will be described. In this embodiment, the line-type air inlet chamber 1 is suspended from the upper wall of the concrete.

  First, the line-type air restriction chamber 1 is arranged at a predetermined (designed) arrangement position. That is, an anchor bolt for fixing the suspension bolt H is embedded in a predetermined position (design position) of the concrete upper wall, and the suspension bolt H is fixed with the anchor bolt. Next, as shown in FIG. 4, the other end of the suspension bolt H is inserted into the suspension bolt hole of the upper cover 3, and a nut N is attached to the other end of the suspension bolt H to prevent it from coming off. As a result, the line type air inlet chamber 1 is disposed in a state of being suspended from the upper wall of the concrete. At this time, the chamber body 2, the upper cover 3, and the skirt 4 are substantially in a straight line, and the skirt 4 is located at a position indicated by a two-dot chain line in FIG.

  On the other hand, an opening window W1 that is slightly larger than the lower opening 4a of the skirt 4 is provided in advance on the ceiling board W according to the design position. And if this ceiling board W is hung from the light sky (lightweight steel ceiling base) and arranged, the lower opening 4a of the skirt 4 is located in the opening window W1. However, the position of the opening window W1 and the position of the lower opening 4a of the skirt 4 may not coincide with each other due to processing displacement of the opening window W1 or mounting construction displacement of the line type air restriction chamber 1. In such a case, the positions of the opening window W1 and the lower opening 4a can be matched by performing the following. That is, the skirt 4 is slid along the holes 21d and 22d in the longitudinal direction (the direction below the main body along the lines 21d and 22d). Further, with respect to the deviation in the direction orthogonal to the longitudinal direction, the skirt 4 is moved in the same direction by moving the bottoms 21d and 22d in parallel in the direction to eliminate the deviation as described above. As a result, the lower opening 4a of the skirt 4 moves to the same position as the opening window W1, and the positions of the opening window W1 and the lower opening 4a coincide.

  In this manner, the breath line BL is attached in a state in which the positions of the opening window W1 and the lower opening 4a coincide. That is, the mounting plate 5 is slid along the holding portions 41b and 42b so as to match the position of the bolt insertion hole BL2 provided in the breath line BL, and as shown in FIG. 9, the insertion portion BL3 of the breath line BL is inserted. Is inserted into the lower opening 4 a of the skirt 4. Next, the fixing bolt BL1 is inserted into the bolt insertion hole BL2 and the guide portion 51a. At this time, if the positions of the bolt insertion hole BL2 and the guide portion 51a are slightly shifted, the mounting plate 5 slides (moves) by insertion of the fixing bolt BL1 into the guide portion 51a, and the bolt insertion hole BL2 While the position with the guide part 51a corresponds, the fixing bolt BL1 is guided to the female screw part 52a side by the guide part 51a. Then, by fixing the fixing bolt BL1 to the female threaded portion 52a, the breathe line BL is attached to the attachment plate 5, and the breathe line BL is disposed in a state where the surface is located on the same plane as the ceiling plate W. Is done. On the other hand, the construction is completed by connecting the air-conditioning duct D to the connecting cylinder 24, and the air from the air-conditioning duct D is sent into the room from the breath line BL through the line-type air restriction chamber 1. Note that the breath line BL has an elongated box shape as shown in FIG. 10 and includes a wind direction adjusting vane BL4. The air flow direction can be adjusted by changing the position (angle) of the wind direction adjusting vane BL4. Further, by adjusting the position of the skirt 4 as described above, as shown in FIG. 4, the orientation (angle) of the connecting cylinder 24 changes, but the orientation of the air conditioning duct D is adjusted to the orientation of the connecting cylinder 24. Thus, the air conditioning duct D can be easily connected.

  As described above, according to the present line-type air vent chamber 1, the position of the skirt 4 can be adjusted even after the line-type air vent chamber 1 is arranged on the concrete upper wall or the like. For this reason, even when the position of the opening window W1 and the skirt 4 (lower opening 4a) does not coincide with each other when the line-type air restriction chamber 1 is disposed, the skirt is adapted to the position of the opening window W1. The position of 4 can be adjusted. As a result, even when the positions of the opening window W1 and the skirt 4 are shifted, work such as widening the opening window W1 or filling the gap is unnecessary, and the working time and work labor can be greatly reduced. it can.

  In addition, since the non-polymerization opening formed on the lower side of the skirt 4 along with the movement (sliding) along the holes 21d and 22d is covered with the air escape prevention plate 6, air flows from the non-polymerization opening. Outflow is prevented. Moreover, since the slidable range of the skirt 4 is restricted by the stopper 6b of the air escape prevention plate 6 as described above, the size of the non-overlapping opening that can be formed along with the sliding of the skirt 4 is also restricted by the stopper 6b. The As a result, the skirt 4 is slid long to form a large non-polymerized opening, that is, the overlapping opening where the lower opening of the chamber body 2 and the upper opening of the skirt 4 overlap is prevented from becoming smaller. (The polymerization opening is secured above a certain level), and the required cross-sectional area of the air flow path is secured.

  Furthermore, as described above, since the mounting plate 6 is sandwiched between the clamping portions 41b and 42b, the mounting plate 6 is firmly arranged, and the mounting plate 6 and the breath line BL are detached even if an earthquake or the like occurs. There is nothing. Moreover, since the mounting plate 6 is disposed in a state of being sandwiched by the sandwiching portions 41b and 42b from the beginning, that is, the worker does not dispose the mounting plate after placing it on the concrete upper wall or the like. Therefore, the mounting plate is not disposed in an unstable state by the operator. Further, since the mounting plate 6 can slide along the clamping portions 41b and 42b, the position of the mounting plate 6 can be adjusted according to the bolt insertion hole BL2 of the breath line BL as described above. Moreover, since the fixing bolt BL1 is guided to the female screw portion 52a side by the guide portion 51a as described above, the fixing bolt BL1 can be easily screwed. Furthermore, since the fixing bolt BL1 is supported by the guide portion 51a and the female screw portion 52a, the fixing of the breathe line BL becomes strong.

  Further, as described above, since the chamber body 2 and the skirt 4 are movable, when an earthquake or the like occurs, the chamber body 2 and the skirt 4 can move according to the shaking to relieve stress due to the earthquake or the like. It becomes.

  Although the embodiment of the present invention has been described above, the specific configuration is not limited to the above-described embodiment, and even if there is a design change or the like without departing from the gist of the present invention, the present invention is not limited thereto. included. For example, in this embodiment, the breeze line BL is attached to the main line type air restriction chamber 1. However, other line type air restriction openings such as a calm line (CL) can of course be attached. .

  In this embodiment, the skirt 4 slides in the longitudinal direction of the chamber body 2 and the skirt 4 can move horizontally in a direction perpendicular to the sliding direction. However, the displacement between the opening window W1 and the skirt 4 is different. The skirt 4 may be slid in the opposite direction, that is, the short direction of the chamber body 2 and the skirt 4 can be moved horizontally in a direction orthogonal to the direction that is likely to occur.

  Furthermore, in this embodiment, even if the 1st main body board part 21a and the 2nd main body board part 22a rotate by making the 1st side board part 21b and the 2nd side board part 22b partially overlap, 1st A gap is not generated between the side plate portion 21b and the second side plate portion 22b, but both side edges of the first main body plate portion 21a and the second main body plate portion 22a are connected by a stretchable side plate portion. It may be. In addition, as shown in FIG. 11, the length of the skirt 4 ′ in the longitudinal direction may be shorter than that of the chamber body 2 so that the skirt 4 ′ can slide within the range of the chamber body 2 in the length direction.

The front view of the line type air-control opening chamber concerning embodiment of this invention. The side view of the line type air-control opening chamber concerning embodiment of this invention. AA sectional drawing in FIG. The side view which shows the state which adjusted the position of the skirt of the line type air-control opening chamber concerning embodiment of this invention. The top view (a) and front view (b) of the air escape prevention board of the line type air-control opening chamber concerning embodiment of this invention. The partial front view which shows the state which made the skirt slide in the line type air-control opening chamber concerning embodiment of this invention. BB sectional drawing in FIG. The top view of the mounting plate of the line type air-control opening chamber concerning embodiment of this invention. The side view (partial sectional view) which shows the state where the breath line was attached to the line type air inlet chamber concerning the embodiment of the present invention. The front view (a) and side view (b) of a breeze line concerning an embodiment of the present invention. The front view of the other line type air-control opening chamber concerning embodiment of this invention. The partial front view (a) and side view (partial sectional view) (b) which show the state which attached the line type air control port to the conventional line type air control port chamber. The side view (partial cross section figure) which shows the state by which the attachment board is arrange | positioned in the conventional line type air vent chamber.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Line type air inlet chamber 2 Chamber main body 21 1st main body 21a 1st main body board part 21b 1st side board part 21c Main body upper side 21d Main body lower side 22 Second main body 22a 2nd main body board part 22b 2nd side board Portion 22c Upper side of main body 22d Lower side of main body 23 Insertion plate 3 Upper cover 31 Side wall 31a Cover side cover 4 Skirt 4a Lower opening 41 First skirt plate portion 41a Skirt side 41b Holding portion 42 Second skirt plate Part 42a Skirt side 42b Clamping part 5 Mounting plate 51 Lower plate part 51a Guide part 52 Upper plate part 52a Female thread part (threaded part)
6 Air escape prevention plate (air escape prevention member)
6b Stopper D Air conditioning duct (duct)
BL Breeze Line (Line type air intake)
BL1 fixing bolt (screwing member)
W Ceiling panel W1 Open window

Claims (4)

A line-type air inlet chamber disposed between one end of the duct and the line-type air inlet, and sending air from the duct to the line-type air inlet;
A chamber body to which the duct is connected; an upper cover disposed above the chamber body; and a skirt disposed below the chamber body and connected to the line-type air vent.
The chamber main body is a cylinder with a rectangular cross section, the upper cover covers the upper opening of the chamber main body, and the skirt is a cylinder with a cross-sectional shape similar to the chamber main body,
On the upper end edge of the first main body plate portion and the second main body plate portion which are a pair of plate portions facing each other of the chamber main body, a gap is formed on the upper body along the upper end edge, A pair of cover sides that engage with the upper side of the main body is formed with a pair of seams, and the upper side of the main body and the cover side of the main body are rotatably engaged with each other,
A lower side of the main body along the lower edge is formed at a lower edge of the first main body plate portion and the second main body plate portion, and the first skirt of the skirt located below the first main body plate portion is formed. On the upper edge of the skirt plate portion and the second skirt plate portion of the skirt located below the second body plate portion, a skirt side is formed on the skirt side that engages the bottom of the body, The bottom side of the main body and the skirt side are slidably and rotatably engaged,
The first main body plate portion and the second main body plate portion are disposed so that the pair of main body lower sides can move in parallel in a horizontal direction orthogonal to the main body lower side,
The lower side of the main body is movable along the seam, and the lower side of the main body is movable in a direction perpendicular to the seam along with the parallel movement of the seam.
A line type air inlet chamber characterized by that. The chamber body has a first body having a U-shaped cross section having first side plate portions on both side edges of the first body plate portion, and a cross section having second side plate portions on both side edges of the second body plate portion. A U-shaped second body, the first side plate portion and the second side plate portion are partially formed in a cylindrical shape,
When the first main body and the second main body rotate in parallel around the cover side, the pair of main body lower sides move in parallel.
The line type air inlet chamber according to claim 1. An air escape prevention member is provided that covers a non-polymerized opening in which the lower opening of the chamber body and the upper opening of the skirt do not overlap in the movement direction along the bottom of the skirt. ,
The line type air inlet chamber according to claim 1 or 2, wherein The air escape prevention member is plate-shaped, and a stopper is provided at an end of the skirt on the lower side of the main body along the seam. The air escape prevention member is connected to the lower end of the chamber main body. Between the upper end of the skirt,
The stopper hits the lower end of the chamber main body or the upper end of the skirt, and the movable range of the lower side of the skirt along the seam is restricted.
The line type air inlet chamber according to claim 3.

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