WO2018154765A1 - Ceiling panel and air conditioner - Google Patents

Ceiling panel and air conditioner Download PDF

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Publication number
WO2018154765A1
WO2018154765A1 PCT/JP2017/007402 JP2017007402W WO2018154765A1 WO 2018154765 A1 WO2018154765 A1 WO 2018154765A1 JP 2017007402 W JP2017007402 W JP 2017007402W WO 2018154765 A1 WO2018154765 A1 WO 2018154765A1
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WO
WIPO (PCT)
Prior art keywords
corner
cover
screw
outer peripheral
fixing
Prior art date
Application number
PCT/JP2017/007402
Other languages
French (fr)
Japanese (ja)
Inventor
伸哲 吉武
貴志 平岡
我科　賢二
Original Assignee
東芝キヤリア株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 東芝キヤリア株式会社 filed Critical 東芝キヤリア株式会社
Priority to EP17897295.6A priority Critical patent/EP3587952B1/en
Priority to JP2019500992A priority patent/JP6772361B2/en
Priority to PCT/JP2017/007402 priority patent/WO2018154765A1/en
Publication of WO2018154765A1 publication Critical patent/WO2018154765A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
    • F24F1/0047—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in the ceiling or at the ceiling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/20—Casings or covers

Definitions

  • Embodiments of the present invention relate to a ceiling panel used in an air conditioner and a ceiling embedded air conditioner.
  • the ceiling-embedded air conditioner has a ceiling panel that covers the lower end of the indoor unit installed behind the ceiling.
  • the ceiling panel has a square frame, and the four corners of the frame are fixed to the lower end of the indoor unit via panel fixing screws and fixing brackets, respectively.
  • the corners of the frame are covered with removable corner covers.
  • the corner cover is fixed to the corner portion with screws after the operator manually adjusts the posture of the corner cover so that the position with respect to the corner portion is appropriate.
  • An object of the present invention is to obtain a ceiling panel that can easily fix a corner cover to a regular position of a corner portion, has a good appearance, and is excellent in workability.
  • the ceiling panel includes a frame body having a plurality of corner portions, and a plurality of corner covers that detachably cover the corner portions of the frame body.
  • Each corner portion defines an outer periphery of the frame body and has an outer peripheral portion having a plurality of engagement holes, a screw receiving portion positioned inside the outer peripheral portion, and a cover screwed into the screw receiving portion.
  • Each corner cover includes a plurality of engaging claws that are removably hooked in the engaging hole, and a screw fixing portion that protrudes toward the screw receiving portion.
  • the screw fixing portion includes a guide groove that passes through a shaft portion of the cover fixing screw and is opened at a tip of the screw fixing portion, and a guide wall portion that protrudes from the screw fixing portion so as to surround the guide groove. ,including.
  • the guide wall portion contacts the outer peripheral edge of the head portion of the cover fixing screw to move the corner cover toward a normal position on the corner portion.
  • FIG. 1 is a perspective view of an air conditioner according to an embodiment.
  • FIG. 2 is a perspective view of the air conditioner showing a state in which the indoor unit and the ceiling panel are separated from each other.
  • FIG. 3 is a perspective view of the air conditioner showing a state in which one corner cover is removed from the ceiling panel.
  • FIG. 4 is a perspective view of the ceiling panel showing the positional relationship between the frame and the suction grille.
  • FIG. 5 is a plan view of the ceiling panel showing a state in which the corner cover is removed from one corner of the frame.
  • FIG. 6 is a perspective view of the suction grill.
  • FIG. 7 is an enlarged perspective view showing a portion F7 in FIG.
  • FIG. 8 is a perspective view showing the positional relationship between the frame and the hinge of the suction grille.
  • FIG. 9 is a perspective view showing the positional relationship between the lattice portion of the suction grille and the operation portion of the hook.
  • FIG. 10 is a plan view showing the positional relationship between the lattice portion of the suction grille and the operation portion of the hook.
  • FIG. 11 is a plan view of the corner cover.
  • FIG. 12 is a perspective view of the corner cover as seen from the back side.
  • FIG. 13 is a plan view showing a positional relationship between the screw fixing portion of the corner cover and the cover fixing screw.
  • FIG. 14 is a cross-sectional view showing the positional relationship between the head of the cover fixing screw and the guide wall.
  • FIG. 15 is a cross-sectional view showing the positional relationship between the head of the cover fixing screw and the guide wall when the cover fixing screw is tightened.
  • FIG. 16 is a perspective view showing the positional relationship between the screw fixing portion of the corner cover and the cover fixing screw screwed into the screw receiving portion.
  • FIG. 17 is a perspective view showing a state in which the corner cover is fixed at a normal position on the corner portion of the frame body.
  • FIG. 1 is a perspective view of a ceiling-embedded air conditioner
  • FIG. 2 is a perspective view showing a state in which an indoor unit and a ceiling panel are separated from each other
  • FIG. It is a perspective view which shows the state removed.
  • the air conditioner 1 includes an indoor unit 2 installed on the back of the ceiling and a ceiling panel 3 attached to the lower end of the indoor unit 2 as main elements.
  • the indoor unit 2 includes a sheet metal casing 4.
  • the casing 4 is a box-shaped element that opens downward, and is suspended from a beam on the back of the ceiling via, for example, four suspension bolts (not shown).
  • the casing 4 includes a side surface portion 5 continuous in the circumferential direction.
  • the side surface portion 5 has four outer peripheral corner portions 5a, and a hanging metal fitting 6 is fixed to each outer peripheral corner portion 5a.
  • the suspension fitting 6 protrudes horizontally toward the four sides of the casing 4, and the lower end of the suspension bolt is connected to the suspension fitting 6.
  • brackets 7 are fixed to the casing 4.
  • the bracket 7 is positioned at the lower end portion of the outer peripheral corner portion 5a of the casing 4 so as to be positioned directly below the suspension fitting 6.
  • the bracket 7 protrudes horizontally toward the four sides of the casing 4.
  • a panel fixing screw 8 is attached to the protruding end of each bracket 7.
  • the panel fixing screw 8 is an element used when fixing the ceiling panel 3 to the indoor unit 2, and protrudes downward from the bracket 7.
  • the blower 10 is accommodated in the casing 4.
  • a so-called centrifugal fan that sucks air from the axial direction and discharges it in the circumferential direction is used. Since the upper end of the blower 10 is covered with the top plate portion of the casing 4, the lower end of the blower 10 is on the suction side.
  • Drain pan 11 is fitted into the lower end of casing 4.
  • the drain pan 11 is an element that receives drain water dripped from a heat exchanger arranged around the blower 10 and is made of, for example, foamed polystyrene that is a kind of foamed plastic.
  • the drain pan 11 has a circular opening 12.
  • the opening 12 is located at the center of the drain pan 11.
  • a bell mouth 13 is fitted in the opening 12 of the drain pan 11.
  • the bell mouth 13 defines a suction port 14 connected to the suction side of the blower 10.
  • the suction port 14 is located at the center of the lower end of the casing 4.
  • the drain pan 11 has a peripheral edge that surrounds the suction port 14.
  • Four notches 15 through which the air that has passed through the heat exchanger is guided are formed at the peripheral edge of the drain pan 11.
  • the notch 15 has an elongated shape extending along the peripheral edge of the drain pan 11.
  • the notches 15 adjacent to each other in the circumferential direction of the drain pan 11 are maintained in a positional relationship such that they are orthogonal to each other.
  • the drain pan 11 is detachably supported on the lower end of the casing 4 through four drain pan fixing brackets 17.
  • the drain pan fixture 17 is screwed to the lower surface of the bracket 7.
  • the drain pan fixing bracket 17 extends horizontally from the lower end of the outer peripheral corner 5 a of the casing 4 toward the four corners of the drain pan 11, and the lower surface of the corner of the drain pan 11 is placed on the drain pan fixing bracket 17. Has been. Thus, the drain pan 11 is held at the lower end of the casing 4 so as not to fall out of the casing 4.
  • the ceiling panel 3 is an element that covers the indoor unit 2 from the indoor side, and is arranged in a posture along a ceiling (not shown). As shown in FIG. 4, the ceiling panel 3 includes a suction grill 20 and a frame body 21. The suction grill 20 is located at the center of the ceiling panel 3.
  • the suction grill 20 is composed of an outer frame portion 22 and a lattice portion 23.
  • the outer frame portion 22 is a square element having first to fourth side portions 24a, 24b, 24c, and 24d.
  • the first to fourth side portions 24a, 24b, 24c, and 24d are formed of an elongated flat plate having a predetermined width, and the inner and outer peripheral edges of all the side portions 24a, 24b, 24c, and 24d. The lengths are even.
  • the outer peripheral edges of the first to fourth side portions 24a, 24b, 24c, and 24d define outer peripheral corner portions 22a that are pointed at right angles at the four corners of the outer frame portion 22 by being orthogonal to each other.
  • a first rib 25 and a second rib 26 are formed on the back surface of the outer frame portion 22.
  • the first rib 25 is erected from the inner peripheral edge of the first to fourth side parts 24 a, 24 b, 24 c, 24 d and is formed in a rectangular frame shape that is continuous in the circumferential direction of the outer frame part 22. .
  • the second rib 26 is erected from the back surface of the outer frame portion 22 so as to surround the first rib 25.
  • the second rib 26 is positioned inside the outer peripheral edge of the outer frame portion 22 and is formed in a rectangular frame shape that is continuous in the circumferential direction of the outer frame portion 22.
  • the second rib 26 has four corners 26a that are pointed at right angles.
  • the corner portion 26 a is located inside the outer frame portion 22 with respect to the outer peripheral corner portion 22 a at a position corresponding to the outer peripheral corner portion 22 a of the outer frame portion 22.
  • reinforcing ribs 28 are formed at four locations on the back surface of the outer frame portion 22.
  • Each reinforcing rib 28 is erected from the back surface of the outer frame portion 22 so as to connect between the corner portion 26 a of the second rib 26 and the outer peripheral corner portion 22 a of the outer frame portion 22.
  • the reinforcing rib 28 has a first reinforcing wall 28a and a second reinforcing wall 28b.
  • the first reinforcing wall 28 a extends in the diagonal direction of the outer frame portion 22 from the apex of the corner portion 26 a of the second rib 26 toward the apex of the outer peripheral corner portion 22 a of the outer frame portion 22.
  • the second reinforcing wall 28b is bifurcated from the tip of the first reinforcing wall 28a.
  • the tip of the second reinforcing wall 28b reaches the outer peripheral edge of two adjacent side portions 24a, 24b, 24c, and 24d that define the outer peripheral corner portion 22a of the outer frame portion 22.
  • the presence of the reinforcing ribs 28 reinforces the four outer peripheral corner portions 22a of the outer frame portion 22 from the back side, and the outer peripheral corner portions 22a and thus the first to fourth side portions 24a, 24b, 24c, 24d. Flatness is sufficiently secured.
  • a pair of hinges 30 are formed integrally with the third side portion 24 c of the outer frame portion 22.
  • One hinge 30 is located at the outer peripheral corner 22a defined by the third side 24c and the fourth side 24d.
  • the other hinge 30 is located at the outer peripheral corner 22a defined by the third side 24c and the second side 24b. For this reason, the hinges 30 are separated from each other in the longitudinal direction of the third side portion 24c.
  • Each hinge 30 has an arm portion 31.
  • the arm portion 31 protrudes outside the outer frame portion 22 beyond the outer peripheral edge of the third side portion 24c.
  • a shaft portion 32 is formed at the tip of the arm portion 31 along the longitudinal direction of the third side portion 24c.
  • the second reinforcing wall 28 b of the reinforcing rib 28 also serves as a part of the arm portion 31. That is, the reinforcing rib 28 is connected to the arm portion 31 of the hinge 30, so that the arm portion 31 becomes an integral structure with the reinforcing rib 28, and the strength of the arm portion 31 is sufficiently secured.
  • the lattice portion 23 of the suction grill 20 is surrounded by the first rib 25 of the outer frame portion 22.
  • the lattice portion 23 has a plurality of horizontal bars 34.
  • the horizontal bars 34 are arranged in parallel with a space between each other so as to connect the second side 24b and the fourth side 24d of the outer frame part 22.
  • a square filter 35 is disposed behind the lattice portion 23.
  • the filter 35 is detachably supported by the first reinforcing rib 25.
  • the frame body 21 of the ceiling panel 3 surrounds the outer frame portion 22 of the suction grill 20.
  • the frame body 21 includes first to fourth panel pieces 38a, 38b, 38c, and 38d, and first to fourth corner portions 39a, 39b, 39c, and 39d.
  • the first to fourth panel pieces 38a, 38b, 38c, and 38d extend linearly along the first to fourth sides 24a, 24b, 24c, and 24d of the outer frame portion 22 of the suction grill 20.
  • the lengths of the inner peripheral edge and the outer peripheral edge of all the panel pieces 38a, 38b, 38c, 38d are equal. Adjacent first to fourth panel pieces 38a, 38b, 38c, 38d are kept in a positional relationship such that they are orthogonal to each other.
  • the first to fourth corner portions 39a, 39b, 39c, and 39d are located at the four corners of the ceiling panel 3, and the first to fourth panel piece portions 38a, 38b, and 38c that are adjacent to each other in the circumferential direction of the frame body 21. , 38d are integrally connected.
  • first corner portion 39a connects the first panel piece portion 38a and the fourth panel piece portion 38d.
  • the second corner portion 39b connects the first panel piece portion 38a and the second panel piece portion 38b.
  • the third corner portion 39c connects the second panel piece portion 38b and the third panel piece portion 39c.
  • the fourth corner portion 39d connects the third panel piece portion 39c and the fourth panel piece portion 39d.
  • first to fourth panel pieces 38a, 38b, 38c, and 38d are framed in a square shape via the first to fourth corner portions 39a, 39b, 39c, and 39d.
  • a rectangular region surrounded by the inner peripheral edges of the first to fourth panel pieces 38a, 38b, 38c, and 38d defines a working opening 40.
  • a pair of lock holes 41 are formed on the inner peripheral edges of the first to fourth panel pieces 38a, 38b, 38c, and 38d facing the work opening 40, respectively.
  • the lock hole 41 is adjacent to the first to fourth corner portions 39a, 39b, 39c, 39d of the frame body 21 in the longitudinal direction of the first to fourth panel piece portions 38a, 38b, 38c, 38d. Are separated from each other.
  • a pair of temporary hooks 42 (only one of them is shown) is attached to the inner peripheral edge of the first panel piece 38a and the third panel piece 38c facing the work opening 40.
  • the temporary bracket 42 is an element used when temporarily fixing the ceiling panel 3 to the indoor unit 2, and is a frame body from an intermediate portion along the longitudinal direction of the first panel piece portion 38 a and the third panel piece portion 38 c. It protrudes toward the upper side of 21.
  • the upper end of the temporary hook 42 is removably hooked to the lower end of the bell mouth 13 facing the suction port 14. Thereby, the ceiling panel 3 is temporarily fixed to the indoor unit 2 in a form suspended from the bell mouth 13.
  • the hinge 30 of the outer frame portion 22 is selectively selected from any one of the first to fourth panel pieces 38 a, 38 b, 38 c, 38 d of the frame body 21.
  • the frame body 21 is rotatably supported.
  • a recess 43 and a relief groove 44 are formed in the first to fourth corner portions 39a, 39b, 39c, and 39d of the frame body 21, respectively.
  • the recess 43 is an element into which the arm portion 31 of the hinge 30 and the second reinforcing wall 28 b of the reinforcing rib 28 enter, and below the frame body 21. It has a square shape that is open toward.
  • the escape groove 44 is an element into which the first reinforcing wall 28a of the reinforcing rib 28 is inserted, and extends in the diagonal direction of the frame body 21 so as to connect the recess 43 and the work opening 40.
  • the escape groove 44 is continuous with the recess 43 and is opened toward the lower side of the frame body 21.
  • the arm portion 31 of the hinge 30 is inserted into the recessed portions 43 positioned on both sides of the third panel piece portion 38 c, and the shaft portion 32 at the distal end of the arm portion 31 is the terminal end of the recessed portion 43. It is caught in a pivotable manner.
  • the suction grill 20 is a frame body that is rotatable about the shaft portion 32 of the hinge 30 between a first position where the work opening 40 is closed and a second position where the work opening 40 is opened. 21 is supported.
  • the suction grill 20 is rotated to the first position.
  • the outer peripheral portion of the outer frame portion 22 of the suction grill 20 continuously covers the inner peripheral portion of the frame body 21 in the circumferential direction, and the second ribs 26 are the first to fourth panel piece portions. It fits inside the work opening 40 defined by 38a, 38b, 38c, 38d.
  • the arm portion 31 of the hinge 30 and the second reinforcing wall 28b of the reinforcing rib 28 are brought into the concave portions 43 of the third corner portion 39c and the fourth corner portion 39d. Get in. Further, the first reinforcing wall 28a of the reinforcing rib 28 enters the clearance grooves 44 of the third corner portion 39c and the fourth corner portion 39d.
  • the reinforcing rib 28 and the arm portion 31 interfere with the frame body 21 of the suction grill 20 even though the reinforcing rib 28 that reinforces the outer peripheral corner portion 22 a of the outer frame portion 22 is connected to the arm portion 31 of the hinge 30. Can be avoided.
  • the four outer peripheral corner portions 22a of the outer frame portion 22 are in contact with the first to fourth corner portions 39a, 39b, 39c, 39d of the frame body 21.
  • the inner periphery is covered and covers the recess 43 and the escape groove 44. For this reason, the tops of the four outer peripheral corners 22a greatly project from the inner peripheral part of the first to fourth corner parts 39a, 39b, 39c, 39d toward the outer peripheral part.
  • FIG. 4 discloses a state in which the suction grill 20 is rotated to the second position.
  • the suction grille 20 In the second position, the suction grille 20 is rotated downward with respect to the frame body 21 and is held in a posture that hangs down from the third panel piece portion 38c.
  • daily maintenance work such as removing the filter 35 from the first rib 25 of the suction grill 20 and cleaning it, or replacing the filter 35.
  • a pair of hooks 46 that hold the suction grill 20 in the first position are incorporated in the first side portion 24 a of the outer frame portion 22.
  • the hooks 46 are separated from each other in the longitudinal direction of the first side portion 24 a so as to be adjacent to the corner portion 26 a of the second rib 26.
  • the hook 46 is between an engagement release position that fits between the first rib 25 and the second rib 26 and an engagement position that protrudes from the second rib 26 toward the periphery of the outer frame portion 22.
  • the outer frame portion 22 is slidably supported.
  • the tip of the hook 46 is detached from the lock hole 41 of the first panel piece 38a. Thereby, the suction grill 20 can be rotated from the first position to the second position.
  • Each hook 46 has a plate-like operation portion 47.
  • the operation unit 47 is an element for sliding the hook 46, and has a size that allows the operator to hook the fingertip of the hand. As shown in FIGS. 1, 9, and 10, the operation unit 47 is disposed in parallel with the cross rail 34 of the lattice unit 23 at both ends along the longitudinal direction of the first side 24 a.
  • the operation portion 47 is exposed outside the lattice portion 23 from the gap g between the inner peripheral edge of the first side portion 24a and one horizontal rail 34 adjacent to the inner peripheral edge. Furthermore, when the hook 46 is slid to the engagement position, the operation portion 47 enters a recess 48 formed on the inner peripheral edge of the first side portion 24a.
  • the operation portion 47 of the hook 46 is housed in the recess 48 outside the lattice portion 23 at both ends along the longitudinal direction of the first side portion 24a. Yes. Accordingly, the operation unit 47 is embedded in the first side portion 24a, and the operation unit 47 is less noticeable.
  • the ceiling panel 3 has four outlets 50 for discharging the air that has passed through the heat exchanger into the room.
  • the blower outlet 50 is formed in the 1st thru
  • louvers 51 are supported by the frame body 21 of the ceiling panel 3.
  • the louver 51 is an element that changes the blowing direction of the air blown into the room from the blower outlet 50, and is formed in a flat and slender plate shape.
  • the louver 51 is rotatable between a closed position that closes the air outlet 50 and an open position that is inclined so as to open the air outlet 50. When the louver 51 is turned to the closed position, the louver 51 is horizontal and covers the first to fourth panel pieces 38a, 38b, 38c, and 38d.
  • the ceiling panel 3 is detachably connected to the lower end of the indoor unit 2 at the first to fourth corner portions 39a, 39b, 39c, 39d of the frame body 21. Since the connecting portions of the indoor unit 2 and the first to fourth corner portions 39a, 39b, 39c, and 39d of the frame body 21 have similar structures, the third corner portion 39c is representative in this embodiment. To explain.
  • the third corner portion 39 c of the frame body 21 has an accommodating portion 52 that is positioned directly below one outer peripheral corner portion 5 a of the indoor unit 2.
  • the accommodating part 52 is prescribed
  • the panel fixing screw 8 protruding downward from the bracket 7 of the casing 4 penetrates the top plate portion 53 of the storage portion 52 and protrudes into the storage portion 52.
  • the fixing bracket 55 is rotatably supported by the top plate portion 53 of the housing portion 52.
  • the fixture 55 has a slit-like cut 56.
  • the fixing metal 55 is rotatable between an engagement position where the notch 56 is caught by the lower end portion of the panel fixing screw 8 and an engagement release position where the notch 56 is detached from the lower end portion of the panel fixing screw 8.
  • the fixing bracket 55 is sandwiched between the head at the lower end of the panel fixing screw 8 and the top plate portion 53 of the housing portion 52.
  • the ceiling panel 3 is fixed to the lower end of the indoor unit 2 so as to cover the lower end of the indoor unit 2 from below.
  • the third corner portion 39 c of the frame body 21 has a plurality of engagement holes 57 and screw receiving portions 58.
  • the engagement hole 57 is disposed on the outer peripheral portion of the third corner portion 39 c that defines the outline of the frame body 21.
  • the engagement holes 57 are separated from each other in the circumferential direction of the frame body 21 so as to be positioned around the accommodating portion 52.
  • the screw receiving portion 58 protrudes downward from the top plate portion 53 of the accommodating portion 52 at a position adjacent to the concave portion 43 of the third corner portion 39c.
  • a cover fixing screw 60 is attached to the protruding end of the screw receiving portion 58.
  • the cover fixing screw 60 has a shaft portion 60a screwed into the screw receiving portion 58, and a head portion 60b provided coaxially at the end of the shaft portion 60a.
  • the head 60b has a larger outer diameter than the shaft portion 60a and a circular outer peripheral edge.
  • the cover fixing screw 60 is positioned on a diagonal line connecting the first corner portion 39a and the third corner portion 39c of the frame body 21. Further, the screw receiving portion 58 and the head portion 60b of the cover fixing screw 60 are provided at a position covered with one top portion 22a of the suction grill 20 held at the first position.
  • the engagement hole 57, the screw receiving portion 58, and the cover fixing screw 60 are not only applied to the third corner portion 39c but also to the first corner portion 39a, the second corner portion 39b, and the fourth corner portion 39d. Is provided.
  • the first to fourth corner portions 39a, 39b, 39c, and 39d of the frame body 21 are covered with removable corner covers 62, respectively.
  • the corner cover 62 is a flat plate-like element having a size that covers the first to fourth corner portions 39a, 39b, 39c, and 39d from the bottom.
  • the outer peripheral part of the corner cover 62 has a right-pointed shape including two sides orthogonal to each other.
  • a cut portion 63 cut out at a right angle so as to avoid the outer peripheral corner portion 22 a of the suction grill 20 is formed on the inner peripheral portion of the corner cover 62.
  • the corner cover 62 has a plurality of engaging claws 64 and a screw fixing portion 65.
  • the engaging claw 64 protrudes from the back surface of the outer peripheral portion of the corner cover 62 so as to correspond to the engaging hole 57 of the third corner portion 39c.
  • a hook 64 a that is bent at a right angle toward the cut portion 63 of the corner cover 62 is formed at the tip of each engagement claw 64.
  • the screw fixing portion 65 protrudes from the center of the cut portion 63 toward the screw receiving portion 58.
  • the screw fixing portion 65 has a guide groove 66 through which the shaft portion 60a of the cover fixing screw 60 is slidably passed.
  • the guide groove 66 extends in a direction along a diagonal line connecting the first corner portion 39 a and the third corner portion 39 c of the frame body 21 and is opened at the tip of the screw fixing portion 65.
  • a guide wall portion 70 is formed on the protruding end portion of the screw fixing portion 65.
  • the guide wall portion 70 is raised from the outer peripheral portion of the screw fixing portion 65 so as to surround the guide groove 66, and is curved so as to approach each other as it proceeds in the direction of the opening end of the guide groove 66.
  • the inner surface of the guide wall portion 70 constitutes a guide surface 71 that is inclined with respect to the outer peripheral edge of the head 60 b of the cover fixing screw 60 so as to approach the opening edge of the guide groove 66.
  • the guide surface 71 is interposed between the head 60b of the cover fixing screw 60 and the screw fixing portion 65, and the head It inclines so that it may enter the inner side along the radial direction of the head 60b rather than the outer periphery of 60b. Further, the end of the guide surface 71 reaches the screw fixing portion 65.
  • the guide wall 70 has an opening 72 cut out so that the shaft 60a of the cover fixing screw 60 can pass therethrough.
  • the opening 72 communicates with the tip of the guide groove 66.
  • the cover fixing screw 60 is loosened, and the head portion 60b of the cover fixing screw 60 is removed. Is kept away from the screw receiving portion 58.
  • the engaging claws 64 of the corner cover 62 are inserted into the engaging holes 57 of the first to fourth corner portions 39a, 39b, 39c, 39d, and the guide groove 66 of the screw fixing portion 65 is inserted into the cover fixing screw 60.
  • the corner cover 62 is slid in the diagonal direction of the frame body 21 so as to approach the shaft portion 60a.
  • the corner cover 62 In the normal position, the corner cover 62 is positioned on the same plane as the outer frame portion 22 of the suction grill 20 and the louver 51 rotated to the closed position. Further, the gaps formed at the joints between the cut part 63 of the corner cover 62 and the outer peripheral corner part 22a of the outer frame part 22 and the joints between the corner cover 62 and the louver 51 are all corner parts 39a, 39b, 39c and 39d are substantially equal.
  • the outer periphery of the corner cover 62 continues in a straight line with respect to the outer peripheral edge of the louver 51 rotated to the closed position, and a sense of unity between the corner cover 62 and the louver 51 is obtained.
  • the corner cover 60 is pulled out from the first to fourth corner portions 39a, 39b, 39c, and 39d of the frame body 21 in the direction in which the guide groove 66 of the corner cover 62 is detached from the shaft portion 60a of the cover fixing screw 60. be able to.
  • corner cover 62 can be removed from the frame body 21 without removing the cover fixing screw 60 from the screw receiving portion 58, and the cover fixing screw 60 can be prevented from being lost.
  • the corner cover 62 when the corner cover 62 is fixed to the first to fourth corner portions 39a, 39b, 39c, 39d of the frame body 21, when the cover fixing screw 60 is tightened, the head 60b of the cover fixing screw 60 is secured.
  • the outer peripheral edge of the guide contacts the guide surface 71 of the guide wall 70.
  • a pulling force acts on the corner cover 62 toward the screw receiving portion 58.
  • the corner cover 62 moves along the diagonal line of the frame body 21 and is fixed at a regular position.
  • the corner cover 62 is accurately aligned with all the corner portions 39a, 39b, 39c, and 39d of the frame body 21, and the appearance of the ceiling panel 3 is improved.
  • the flatness of the louver 51 is ensured by the reinforcing ribs 28. Therefore, when the louver 51 is rotated to the first position, the joint between the both ends of the louver 51 and the corner cover 62 is obtained. A large level difference can be avoided. At the same time, the gap generated at the joint between the both ends of the louver 51 and the corner cover 62 becomes inconspicuous, which is advantageous for maintaining the appearance of the ceiling panel 3 and thus the air conditioner 1 well.
  • the corner cover 62 is fixed at a normal position by a simple operation of simply tightening the cover fixing screw 60, the cover fixing screw 60 is tightened while paying close attention so that the posture of the corner cover 62 does not change. Troublesome and time-consuming work is not required. For this reason, the corner cover 62 can be easily fixed to the frame body 21, and workability is improved.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)

Abstract

This ceiling panel is provided with: a frame body that has a plurality of corners; and a plurality of corner covers that cover the corners so as to be removable. Each of the corners has an outer peripheral part that has a plurality of engaging holes and that defines the outer shell of the frame body, a screw reception part that is positioned inside the outer peripheral part, and a cover fixing screw that is screwed into the screw reception part. Each of the corner covers has a plurality of engaging claws to be hooked to the engaging holes so as to be removable, and a screw fixing part that projects toward the screw reception part. The screw fixing part has a guide groove which is opened at the tip of the screw fixing part and through which a shaft of the cover fixing screw is inserted, and a guide wall that projects from the screw fixing part so as to surround the guide groove. When the cover fixing screws are tightened, the guide walls move the respective corner covers toward regular positions on the corners by coming into contact with the outer peripheral edges of the heads of the cover fixing screws.

Description

天井パネルおよび空気調和機Ceiling panel and air conditioner
　本発明の実施形態は、空気調和機に用いる天井パネルおよび天井埋め込み型の空気調和機に関する。 Embodiments of the present invention relate to a ceiling panel used in an air conditioner and a ceiling embedded air conditioner.
　天井埋め込み型の空気調和機は、天井裏に据え付けられた室内ユニットの下端を覆う天井パネルを備えている。天井パネルは、四角い枠体を有し、当該枠体の四つのコーナー部が夫々パネル固定ねじおよび固定金具を介して室内ユニットの下端に固定されている。 The ceiling-embedded air conditioner has a ceiling panel that covers the lower end of the indoor unit installed behind the ceiling. The ceiling panel has a square frame, and the four corners of the frame are fixed to the lower end of the indoor unit via panel fixing screws and fixing brackets, respectively.
　枠体のコーナー部は、夫々取り外し可能なコーナーカバーで覆われている。コーナーカバーは、コーナー部に対する位置が適正となるように、作業者が手作業でコーナーカバーの姿勢を調整した後、ねじを用いてコーナー部に固定している。 The corners of the frame are covered with removable corner covers. The corner cover is fixed to the corner portion with screws after the operator manually adjusts the posture of the corner cover so that the position with respect to the corner portion is appropriate.
特許第４９１６５５２号公報Japanese Patent No. 4916552
　しかしながら、コーナーカバーが正規の位置から外れているのを知らずにねじを締め付けた場合に、枠体とコーナーカバーとの合わせ目がずれたり、合わせ目の箇所に大きな隙間が生じるのを否めない。この種の隙間は、室内から天井パネルを見上げた時に人々の目に留まり易く、天井パネルの体裁が悪くなる。 However, when the screws are tightened without knowing that the corner cover is out of the normal position, it cannot be denied that the joint between the frame and the corner cover is displaced or a large gap is formed at the joint. This kind of gap tends to be noticed by people when looking up at the ceiling panel from the room, and the appearance of the ceiling panel becomes worse.
　しかも、作業者は、コーナーカバーが正規の位置からずれないように注意しながらねじを締め付けなくてはならず、作業性の面でも改善の余地が残されている。 Moreover, the operator must tighten the screws while taking care that the corner cover does not deviate from the normal position, leaving room for improvement in terms of workability.
　本発明の目的は、コーナーカバーをコーナー部の正規の位置に容易に固定することができ、体裁が良好となるとともに、作業性に優れた天井パネルを得ることにある。 An object of the present invention is to obtain a ceiling panel that can easily fix a corner cover to a regular position of a corner portion, has a good appearance, and is excellent in workability.
　実施形態によれば、天井パネルは、複数のコーナー部を有する枠体と、前記枠体の前記コーナー部を取り外し可能に覆う複数のコーナーカバーと、を備えている。前記各コーナー部は、前記枠体の外郭を規定するとともに複数の係合孔を有する外周部と、前記外周部よりも内側に位置されたねじ受け部と、前記ねじ受け部にねじ込まれたカバー固定ねじと、を有する。前記各コーナーカバーは、前記係合孔に取り外し可能に引っ掛かる複数の係合爪と、前記ねじ受け部に向けて突出されたねじ固定部と、を有する。前記ねじ固定部は、前記カバー固定ねじの軸部が貫通するとともに前記ねじ固定部の先端に開口されたガイド溝と、前記ガイド溝を囲むように前記ねじ固定部から突出されたガイド壁部と、を含む。前記ガイド壁部は、前記カバー固定ねじを締め付けた時に、前記カバー固定ねじの頭部の外周縁に接することで前記コーナーカバーを前記コーナー部の上の正規な位置に向けて移動させる。 According to the embodiment, the ceiling panel includes a frame body having a plurality of corner portions, and a plurality of corner covers that detachably cover the corner portions of the frame body. Each corner portion defines an outer periphery of the frame body and has an outer peripheral portion having a plurality of engagement holes, a screw receiving portion positioned inside the outer peripheral portion, and a cover screwed into the screw receiving portion. A fixing screw. Each corner cover includes a plurality of engaging claws that are removably hooked in the engaging hole, and a screw fixing portion that protrudes toward the screw receiving portion. The screw fixing portion includes a guide groove that passes through a shaft portion of the cover fixing screw and is opened at a tip of the screw fixing portion, and a guide wall portion that protrudes from the screw fixing portion so as to surround the guide groove. ,including. When the cover fixing screw is tightened, the guide wall portion contacts the outer peripheral edge of the head portion of the cover fixing screw to move the corner cover toward a normal position on the corner portion.
図１は、実施形態に係る空気調和機の斜視図である。FIG. 1 is a perspective view of an air conditioner according to an embodiment. 図２は、室内ユニットと天井パネルとを互いに分離した状態を示す空気調和機の斜視図である。FIG. 2 is a perspective view of the air conditioner showing a state in which the indoor unit and the ceiling panel are separated from each other. 図３は、天井パネルから一つのコーナーカバーを取り外した状態を示す空気調和機の斜視図である。FIG. 3 is a perspective view of the air conditioner showing a state in which one corner cover is removed from the ceiling panel. 図４は、枠体と吸込みグリルとの位置関係を示す天井パネルの斜視図である。FIG. 4 is a perspective view of the ceiling panel showing the positional relationship between the frame and the suction grille. 図５は、枠体の一つのコーナー部からコーナーカバーを取り外した状態を示す天井パネルの平面図である。FIG. 5 is a plan view of the ceiling panel showing a state in which the corner cover is removed from one corner of the frame. 図６は、吸込みグリルの斜視図である。FIG. 6 is a perspective view of the suction grill. 図７は、図６のＦ７の箇所を拡大して示す斜視図である。FIG. 7 is an enlarged perspective view showing a portion F7 in FIG. 図８は、枠体と吸込みグリルのヒンジとの位置関係を示す斜視図である。FIG. 8 is a perspective view showing the positional relationship between the frame and the hinge of the suction grille. 図９は、吸込みグリルの格子部とフックの操作部との位置関係を示す斜視図である。FIG. 9 is a perspective view showing the positional relationship between the lattice portion of the suction grille and the operation portion of the hook. 図１０は、吸込みグリルの格子部とフックの操作部との位置関係を示す平面図である。FIG. 10 is a plan view showing the positional relationship between the lattice portion of the suction grille and the operation portion of the hook. 図１１は、コーナーカバーの平面図である。FIG. 11 is a plan view of the corner cover. 図１２は、コーナーカバーを裏側から見た斜視図である。FIG. 12 is a perspective view of the corner cover as seen from the back side. 図１３は、コーナーカバーのねじ固定部とカバー固定ねじとの位置関係を示す平面図である。FIG. 13 is a plan view showing a positional relationship between the screw fixing portion of the corner cover and the cover fixing screw. 図１４は、カバー固定ねじの頭部とガイド壁部との位置関係を示す断面図である。FIG. 14 is a cross-sectional view showing the positional relationship between the head of the cover fixing screw and the guide wall. 図１５は、カバー固定ねじを締め付けた時のカバー固定ねじの頭部とガイド壁部との位置関係を示す断面図である。FIG. 15 is a cross-sectional view showing the positional relationship between the head of the cover fixing screw and the guide wall when the cover fixing screw is tightened. 図１６は、コーナーカバーのねじ固定部とねじ受け部にねじ込まれたカバー固定ねじとの位置関係を示す斜視図である。FIG. 16 is a perspective view showing the positional relationship between the screw fixing portion of the corner cover and the cover fixing screw screwed into the screw receiving portion. 図１７は、コーナーカバーが枠体のコーナー部の上の正規な位置に固定された状態を示す斜視図である。FIG. 17 is a perspective view showing a state in which the corner cover is fixed at a normal position on the corner portion of the frame body.
　以下、実施形態について図面を参照して説明する。 Hereinafter, embodiments will be described with reference to the drawings.
　図１は、天井埋め込み型の空気調和機の斜視図、図２は、室内ユニットと天井パネルとを互いに分離した状態を示す斜視図、図３は、天井パネルの枠体から一つのコーナーカバーを取り外した状態を示す斜視図である。 FIG. 1 is a perspective view of a ceiling-embedded air conditioner, FIG. 2 is a perspective view showing a state in which an indoor unit and a ceiling panel are separated from each other, and FIG. It is a perspective view which shows the state removed.
　図１ないし図３に示すように、空気調和機１は、天井裏に据え付けられる室内ユニット２と、室内ユニット２の下端に取り付けられた天井パネル３と、を主要な要素として備えている。室内ユニット２は、板金製のケーシング４を備えている。ケーシング４は、下向きに開口された箱形の要素であって、例えば四本の吊りボルト（図示せず）を介して天井裏の梁から吊り下げられている。 As shown in FIGS. 1 to 3, the air conditioner 1 includes an indoor unit 2 installed on the back of the ceiling and a ceiling panel 3 attached to the lower end of the indoor unit 2 as main elements. The indoor unit 2 includes a sheet metal casing 4. The casing 4 is a box-shaped element that opens downward, and is suspended from a beam on the back of the ceiling via, for example, four suspension bolts (not shown).
　ケーシング４は、周方向に連続した側面部５を含んでいる。側面部５は、四つの外周角部５ａを有し、各外周角部５ａに吊り金具６が固定されている。吊り金具６は、ケーシング４の四方に向けて水平に突出されており、当該吊り金具６に前記吊りボルトの下端が連結されている。 The casing 4 includes a side surface portion 5 continuous in the circumferential direction. The side surface portion 5 has four outer peripheral corner portions 5a, and a hanging metal fitting 6 is fixed to each outer peripheral corner portion 5a. The suspension fitting 6 protrudes horizontally toward the four sides of the casing 4, and the lower end of the suspension bolt is connected to the suspension fitting 6.
　さらに、四つのブラケット７がケーシング４に固定されている。ブラケット７は、吊り金具６の真下に位置するようにケーシング４の外周角部５ａの下端部に位置されている。ブラケット７は、ケーシング４の四方に向けて水平に突出されている。 Furthermore, four brackets 7 are fixed to the casing 4. The bracket 7 is positioned at the lower end portion of the outer peripheral corner portion 5a of the casing 4 so as to be positioned directly below the suspension fitting 6. The bracket 7 protrudes horizontally toward the four sides of the casing 4.
　各ブラケット７の突出端部にパネル固定ねじ８が取り付けられている。パネル固定ねじ８は、天井パネル３を室内ユニット２に固定する際に用いる要素であって、ブラケット７から下向きに突出されている。 A panel fixing screw 8 is attached to the protruding end of each bracket 7. The panel fixing screw 8 is an element used when fixing the ceiling panel 3 to the indoor unit 2, and protrudes downward from the bracket 7.
　図２に示すように、送風機１０がケーシング４の内部に収容されている。送風機１０としては、軸方向から空気を吸い込んで周方向に吐き出す、いわゆる遠心ファンを用いている。送風機１０の上端は、ケーシング４の天板部で覆われているので、送風機１０の下端が吸い込み側となる。 As shown in FIG. 2, the blower 10 is accommodated in the casing 4. As the blower 10, a so-called centrifugal fan that sucks air from the axial direction and discharges it in the circumferential direction is used. Since the upper end of the blower 10 is covered with the top plate portion of the casing 4, the lower end of the blower 10 is on the suction side.
　ケーシング４の下端にドレンパン１１が嵌め込まれている。ドレンパン１１は、送風機１０の周囲に配置された熱交換器から滴下するドレン水を受け止める要素であって、例えば発泡プラスチックの一種である発泡スチロールで構成されている。ドレンパン１１は、円形の開口部１２を有している。開口部１２は、ドレンパン１１の中央部に位置されている。ベルマウス１３がドレンパン１１の開口部１２に嵌め込まれている。ベルマウス１３は、送風機１０の吸込み側に連なる吸込口１４を規定している。吸込口１４は、ケーシング４の下端の中央部に位置されている。 Drain pan 11 is fitted into the lower end of casing 4. The drain pan 11 is an element that receives drain water dripped from a heat exchanger arranged around the blower 10 and is made of, for example, foamed polystyrene that is a kind of foamed plastic. The drain pan 11 has a circular opening 12. The opening 12 is located at the center of the drain pan 11. A bell mouth 13 is fitted in the opening 12 of the drain pan 11. The bell mouth 13 defines a suction port 14 connected to the suction side of the blower 10. The suction port 14 is located at the center of the lower end of the casing 4.
　図２に示すように、ドレンパン１１は、吸込口１４を取り囲む周縁部を有している。ドレンパン１１の周縁部に熱交換器を通過した空気が導かれる四つの切欠部１５が形成されている。切欠部１５は、夫々ドレンパン１１の周縁部に沿って延びる細長い形状を有している。ドレンパン１１の周方向に隣り合う切欠部１５は、互いに直交し合うような位置関係に保たれている。 As shown in FIG. 2, the drain pan 11 has a peripheral edge that surrounds the suction port 14. Four notches 15 through which the air that has passed through the heat exchanger is guided are formed at the peripheral edge of the drain pan 11. The notch 15 has an elongated shape extending along the peripheral edge of the drain pan 11. The notches 15 adjacent to each other in the circumferential direction of the drain pan 11 are maintained in a positional relationship such that they are orthogonal to each other.
　ドレンパン１１は、四つのドレンパン固定金具１７を介してケーシング４の下端に取り外し可能に支持されている。ドレンパン固定金具１７は、ブラケット７の下面にねじ止めされている。ドレンパン固定金具１７は、ケーシング４の外周角部５ａの下端からドレンパン１１の四つの角部に向けて水平に張り出しており、当該ドレンパン固定金具１７の上にドレンパン１１の角部の下面が載置されている。これにより、ドレンパン１１は、ケーシング４から抜け落ちないようにケーシング４の下端に保持されている。 The drain pan 11 is detachably supported on the lower end of the casing 4 through four drain pan fixing brackets 17. The drain pan fixture 17 is screwed to the lower surface of the bracket 7. The drain pan fixing bracket 17 extends horizontally from the lower end of the outer peripheral corner 5 a of the casing 4 toward the four corners of the drain pan 11, and the lower surface of the corner of the drain pan 11 is placed on the drain pan fixing bracket 17. Has been. Thus, the drain pan 11 is held at the lower end of the casing 4 so as not to fall out of the casing 4.
　前記天井パネル３は、室内ユニット２を室内の側から覆う要素であって、図示しない天井に沿うような姿勢で配置されている。図４に示すように、天井パネル３は、吸込みグリル２０および枠体２１を備えている。吸込みグリル２０は、天井パネル３の中央部に位置されている。 The ceiling panel 3 is an element that covers the indoor unit 2 from the indoor side, and is arranged in a posture along a ceiling (not shown). As shown in FIG. 4, the ceiling panel 3 includes a suction grill 20 and a frame body 21. The suction grill 20 is located at the center of the ceiling panel 3.
　図４および図６に示すように、吸込みグリル２０は、外枠部２２および格子部２３で構成されている。外枠部２２は、第１ないし第４の辺部２４ａ，２４ｂ，２４ｃ，２４ｄを有する正方形状の要素である。第１ないし第４の辺部２４ａ，２４ｂ，２４ｃ，２４ｄは、所定の幅を有する細長いフラットな板で形成されているとともに、全ての辺部２４ａ，２４ｂ，２４ｃ，２４ｄの内周縁および外周縁の長さが均等となっている。さらに、第１ないし第４の辺部２４ａ，２４ｂ，２４ｃ，２４ｄの外周縁は、互いに直交し合うことで外枠部２２の四隅に直角に尖った外周角部２２ａを規定している。 4 and 6, the suction grill 20 is composed of an outer frame portion 22 and a lattice portion 23. The outer frame portion 22 is a square element having first to fourth side portions 24a, 24b, 24c, and 24d. The first to fourth side portions 24a, 24b, 24c, and 24d are formed of an elongated flat plate having a predetermined width, and the inner and outer peripheral edges of all the side portions 24a, 24b, 24c, and 24d. The lengths are even. Further, the outer peripheral edges of the first to fourth side portions 24a, 24b, 24c, and 24d define outer peripheral corner portions 22a that are pointed at right angles at the four corners of the outer frame portion 22 by being orthogonal to each other.
　図４および図６に示すように、外枠部２２の背面に第１のリブ２５および第２のリブ２６が形成されている。第１のリブ２５は、第１ないし第４の辺部２４ａ，２４ｂ，２４ｃ，２４ｄの内周縁から起立されているとともに、外枠部２２の周方向に連続した四角い枠状に形成されている。 4 and 6, a first rib 25 and a second rib 26 are formed on the back surface of the outer frame portion 22. The first rib 25 is erected from the inner peripheral edge of the first to fourth side parts 24 a, 24 b, 24 c, 24 d and is formed in a rectangular frame shape that is continuous in the circumferential direction of the outer frame part 22. .
　第２のリブ２６は、第１のリブ２５を取り囲むように外枠部２２の背面から起立されている。第２のリブ２６は、外枠部２２の外周縁よりも内側に位置されるとともに、外枠部２２の周方向に連続した四角い枠状に形成されている。第２のリブ２６は、直角に尖った四つの角部２６ａを有している。角部２６ａは、外枠部２２の外周角部２２ａに対応した位置において、当該外周角部２２ａよりも外枠部２２の内側に位置されている。 The second rib 26 is erected from the back surface of the outer frame portion 22 so as to surround the first rib 25. The second rib 26 is positioned inside the outer peripheral edge of the outer frame portion 22 and is formed in a rectangular frame shape that is continuous in the circumferential direction of the outer frame portion 22. The second rib 26 has four corners 26a that are pointed at right angles. The corner portion 26 a is located inside the outer frame portion 22 with respect to the outer peripheral corner portion 22 a at a position corresponding to the outer peripheral corner portion 22 a of the outer frame portion 22.
　図６および図７に示すように、外枠部２２の背面の四箇所に補強リブ２８が形成されている。各補強リブ２８は、第２のリブ２６の角部２６ａと外枠部２２の外周角部２２ａとの間を結ぶように外枠部２２の背面から起立されている。 As shown in FIGS. 6 and 7, reinforcing ribs 28 are formed at four locations on the back surface of the outer frame portion 22. Each reinforcing rib 28 is erected from the back surface of the outer frame portion 22 so as to connect between the corner portion 26 a of the second rib 26 and the outer peripheral corner portion 22 a of the outer frame portion 22.
　具体的に述べると、補強リブ２８は、第１の補強壁２８ａおよび第２の補強壁２８ｂを有している。第１の補強壁２８ａは、第２のリブ２６の角部２６ａの頂点から外枠部２２の外周角部２２ａの頂点に向けて外枠部２２の対角線の方向に延びている。第２の補強壁２８ｂは、第１の補強壁２８ａの先端から二股状に分岐されている。第２の補強壁２８ｂの先端は、外枠部２２の外周角部２２ａを規定する隣り合う二つの辺部２４ａ，２４ｂ，２４ｃ，２４ｄの外周縁に達している。 More specifically, the reinforcing rib 28 has a first reinforcing wall 28a and a second reinforcing wall 28b. The first reinforcing wall 28 a extends in the diagonal direction of the outer frame portion 22 from the apex of the corner portion 26 a of the second rib 26 toward the apex of the outer peripheral corner portion 22 a of the outer frame portion 22. The second reinforcing wall 28b is bifurcated from the tip of the first reinforcing wall 28a. The tip of the second reinforcing wall 28b reaches the outer peripheral edge of two adjacent side portions 24a, 24b, 24c, and 24d that define the outer peripheral corner portion 22a of the outer frame portion 22.
　したがって、補強リブ２８の存在により、外枠部２２の四つの外周角部２２ａが背面の側から補強され、当該外周角部２２ａひいては第１ないし第４の辺部２４ａ，２４ｂ，２４ｃ，２４ｄの平坦度が十分に確保されている。 Therefore, the presence of the reinforcing ribs 28 reinforces the four outer peripheral corner portions 22a of the outer frame portion 22 from the back side, and the outer peripheral corner portions 22a and thus the first to fourth side portions 24a, 24b, 24c, 24d. Flatness is sufficiently secured.
　この結果、外枠部２２の外郭を規定する縁取り部２９の肉厚を薄くした場合でも、第１ないし第４の辺部２４ａ，２４ｂ，２４ｃ，２４ｄおよび外周角部２２ａの反り、歪み等を抑制することができる。 As a result, even when the thickness of the edge portion 29 that defines the outline of the outer frame portion 22 is reduced, warping, distortion, etc. of the first to fourth side portions 24a, 24b, 24c, 24d and the outer peripheral corner portion 22a are reduced. Can be suppressed.
　図６に示すように、一対のヒンジ３０が外枠部２２の第３の辺部２４ｃに一体に形成されている。一方のヒンジ３０は、第３の辺部２４ｃと第４の辺部２４ｄとで規定される外周角部２２ａに位置されている。他方のヒンジ３０は、第３の辺部２４ｃと第２の辺部２４ｂとで規定される外周角部２２ａに位置されている。このため、ヒンジ３０は、第３の辺部２４ｃの長手方向に互いに離れている。 As shown in FIG. 6, a pair of hinges 30 are formed integrally with the third side portion 24 c of the outer frame portion 22. One hinge 30 is located at the outer peripheral corner 22a defined by the third side 24c and the fourth side 24d. The other hinge 30 is located at the outer peripheral corner 22a defined by the third side 24c and the second side 24b. For this reason, the hinges 30 are separated from each other in the longitudinal direction of the third side portion 24c.
　ヒンジ３０は、夫々アーム部３１を有している。アーム部３１は、第３の辺部２４ｃの外周縁を超えて外枠部２２の外側に張り出している。アーム部３１の先端には、第３の辺部２４ｃの長手方向に沿う軸部３２が形成されている。 Each hinge 30 has an arm portion 31. The arm portion 31 protrudes outside the outer frame portion 22 beyond the outer peripheral edge of the third side portion 24c. A shaft portion 32 is formed at the tip of the arm portion 31 along the longitudinal direction of the third side portion 24c.
　図８に最もよく示されるように、前記補強リブ２８の第２の補強壁２８ｂは、アーム部３１の一部を兼ねている。すなわち、補強リブ２８がヒンジ３０のアーム部３１と繋がることで、アーム部３１が補強リブ２８と一体構造物となり、アーム部３１の強度が十分に確保されている。 As best shown in FIG. 8, the second reinforcing wall 28 b of the reinforcing rib 28 also serves as a part of the arm portion 31. That is, the reinforcing rib 28 is connected to the arm portion 31 of the hinge 30, so that the arm portion 31 becomes an integral structure with the reinforcing rib 28, and the strength of the arm portion 31 is sufficiently secured.
　図４および図６に示すように、吸込みグリル２０の格子部２３は、外枠部２２の第１のリブ２５で取り囲まれている。格子部２３は、複数の横桟３４を有している。横桟３４は、外枠部２２の第２の辺部２４ｂと第４の辺部２４ｄとの間を結ぶように、互いに間隔を存して平行に配置されている。さらに、格子部２３の背後に四角いフィルタ３５が配置されている。フィルタ３５は、第１の補強リブ２５に取り外し可能に支持されている。 As shown in FIGS. 4 and 6, the lattice portion 23 of the suction grill 20 is surrounded by the first rib 25 of the outer frame portion 22. The lattice portion 23 has a plurality of horizontal bars 34. The horizontal bars 34 are arranged in parallel with a space between each other so as to connect the second side 24b and the fourth side 24d of the outer frame part 22. Further, a square filter 35 is disposed behind the lattice portion 23. The filter 35 is detachably supported by the first reinforcing rib 25.
　図１ないし図４に示すように、天井パネル３の枠体２１は、吸込みグリル２０の外枠部２２を取り囲んでいる。枠体２１は、第１ないし第４のパネル片部３８ａ，３８ｂ，３８ｃ，３８ｄと、第１ないし第４のコーナー部３９ａ，３９ｂ，３９ｃ，３９ｄと、を備えている。 As shown in FIGS. 1 to 4, the frame body 21 of the ceiling panel 3 surrounds the outer frame portion 22 of the suction grill 20. The frame body 21 includes first to fourth panel pieces 38a, 38b, 38c, and 38d, and first to fourth corner portions 39a, 39b, 39c, and 39d.
　第１ないし第４のパネル片部３８ａ，３８ｂ，３８ｃ，３８ｄは、吸込みグリル２０の外枠部２２の第１ないし第４の辺部２４ａ，２４ｂ，２４ｃ，２４ｄに沿って直線状に延びているとともに、全てのパネル片部３８ａ，３８ｂ，３８ｃ，３８ｄの内周縁および外周縁の長さが均等となっている。隣り合う第１ないし第４のパネル片部３８ａ，３８ｂ，３８ｃ，３８ｄは、互いに直交するような位置関係に保たれている。 The first to fourth panel pieces 38a, 38b, 38c, and 38d extend linearly along the first to fourth sides 24a, 24b, 24c, and 24d of the outer frame portion 22 of the suction grill 20. In addition, the lengths of the inner peripheral edge and the outer peripheral edge of all the panel pieces 38a, 38b, 38c, 38d are equal. Adjacent first to fourth panel pieces 38a, 38b, 38c, 38d are kept in a positional relationship such that they are orthogonal to each other.
　第１ないし第４のコーナー部３９ａ，３９ｂ，３９ｃ，３９ｄは、天井パネル３の四隅に位置するとともに、枠体２１の周方向に隣り合う第１ないし第４のパネル片部３８ａ，３８ｂ，３８ｃ，３８ｄの間を一体的に繋いでいる。 The first to fourth corner portions 39a, 39b, 39c, and 39d are located at the four corners of the ceiling panel 3, and the first to fourth panel piece portions 38a, 38b, and 38c that are adjacent to each other in the circumferential direction of the frame body 21. , 38d are integrally connected.
　具体的に述べると、第１のコーナー部３９ａは、第１のパネル片部３８ａと第４のパネル片部３８ｄとの間を繋いでいる。第２のコーナー部３９ｂは、第１のパネル片部３８ａと第２のパネル片部３８ｂとの間を繋いでいる。第３のコーナー部３９ｃは、第２のパネル片部３８ｂと第３のパネル片部３９ｃとの間を繋いでいる。第４のコーナー部３９ｄは、第３のパネル片部３９ｃと第４のパネル片部３９ｄとの間を繋いでいる。 More specifically, the first corner portion 39a connects the first panel piece portion 38a and the fourth panel piece portion 38d. The second corner portion 39b connects the first panel piece portion 38a and the second panel piece portion 38b. The third corner portion 39c connects the second panel piece portion 38b and the third panel piece portion 39c. The fourth corner portion 39d connects the third panel piece portion 39c and the fourth panel piece portion 39d.
　このため、第１ないし第４のパネル片部３８ａ，３８ｂ，３８ｃ，３８ｄは、第１ないし第４のコーナー部３９ａ，３９ｂ，３９ｃ，３９ｄを介して正方形状に枠組みされている。第１ないし第４のパネル片部３８ａ，３８ｂ，３８ｃ，３８ｄの内周縁で囲まれた四角い領域は、作業用開口４０を規定している。 For this reason, the first to fourth panel pieces 38a, 38b, 38c, and 38d are framed in a square shape via the first to fourth corner portions 39a, 39b, 39c, and 39d. A rectangular region surrounded by the inner peripheral edges of the first to fourth panel pieces 38a, 38b, 38c, and 38d defines a working opening 40.
　図４に示すように、作業用開口４０に臨む第１ないし第４のパネル片部３８ａ，３８ｂ，３８ｃ，３８ｄの内周縁に夫々一対のロック孔４１が形成されている。ロック孔４１は、枠体２１の第１ないし第４のコーナー部３９ａ，３９ｂ，３９ｃ，３９ｄと隣り合うように、第１ないし第４のパネル片部３８ａ，３８ｂ，３８ｃ，３８ｄの長手方向に互いに離れている。 As shown in FIG. 4, a pair of lock holes 41 are formed on the inner peripheral edges of the first to fourth panel pieces 38a, 38b, 38c, and 38d facing the work opening 40, respectively. The lock hole 41 is adjacent to the first to fourth corner portions 39a, 39b, 39c, 39d of the frame body 21 in the longitudinal direction of the first to fourth panel piece portions 38a, 38b, 38c, 38d. Are separated from each other.
　さらに、第１のパネル片部３８ａおよび第３のパネル片部３８ｃの作業用開口４０に臨む内周縁に一対の仮掛け金具４２（一方のみを図示）が取り付けられている。仮掛け金具４２は、天井パネル３を室内ユニット２に仮止めする際に用いる要素であって、第１のパネル片部３８ａおよび第３のパネル片部３８ｃの長手方向に沿う中間部から枠体２１の上方に向けて突出されている。 Furthermore, a pair of temporary hooks 42 (only one of them is shown) is attached to the inner peripheral edge of the first panel piece 38a and the third panel piece 38c facing the work opening 40. The temporary bracket 42 is an element used when temporarily fixing the ceiling panel 3 to the indoor unit 2, and is a frame body from an intermediate portion along the longitudinal direction of the first panel piece portion 38 a and the third panel piece portion 38 c. It protrudes toward the upper side of 21.
　仮掛け金具４２の上端は、吸込口１４に臨むベルマウス１３の下端に取り外し可能に引っ掛かる。これにより、天井パネル３がベルマウス１３から吊り下げられた形態で室内ユニット２に仮止めされるようになっている。 The upper end of the temporary hook 42 is removably hooked to the lower end of the bell mouth 13 facing the suction port 14. Thereby, the ceiling panel 3 is temporarily fixed to the indoor unit 2 in a form suspended from the bell mouth 13.
　図４に示すように、本実施形態の吸込みグリル２０は、外枠部２２のヒンジ３０を枠体２１の第１ないし第４のパネル片部３８ａ，３８ｂ，３８ｃ，３８ｄのいずれかに選択的に引っ掛けることで、枠体２１に回動可能に支持されている。 As shown in FIG. 4, in the suction grill 20 of this embodiment, the hinge 30 of the outer frame portion 22 is selectively selected from any one of the first to fourth panel pieces 38 a, 38 b, 38 c, 38 d of the frame body 21. By being hooked on the frame body 21, the frame body 21 is rotatably supported.
　具体的に述べると、枠体２１の第１ないし第４のコーナー部３９ａ，３９ｂ，３９ｃ，３９ｄに夫々凹部４３および逃げ溝４４が形成されている。図８に第３のコーナー部３９ｃを代表して示すように、凹部４３は、ヒンジ３０のアーム部３１および補強リブ２８の第２の補強壁２８ｂが入り込む要素であって、枠体２１の下方に向けて開口された四角い形状を有している。 More specifically, a recess 43 and a relief groove 44 are formed in the first to fourth corner portions 39a, 39b, 39c, and 39d of the frame body 21, respectively. As representatively shown in the third corner portion 39 c in FIG. 8, the recess 43 is an element into which the arm portion 31 of the hinge 30 and the second reinforcing wall 28 b of the reinforcing rib 28 enter, and below the frame body 21. It has a square shape that is open toward.
　逃げ溝４４は、補強リブ２８の第１の補強壁２８ａが入り込む要素であって、凹部４３と作業用開口４０との間を結ぶように枠体２１の対角線の方向に延びている。逃げ溝４４は、凹部４３に連続して枠体２１の下方に向けて開口されている。 The escape groove 44 is an element into which the first reinforcing wall 28a of the reinforcing rib 28 is inserted, and extends in the diagonal direction of the frame body 21 so as to connect the recess 43 and the work opening 40. The escape groove 44 is continuous with the recess 43 and is opened toward the lower side of the frame body 21.
　本実施形態では、ヒンジ３０のアーム部３１は、第３のパネル片部３８ｃの両側に位置された凹部４３に挿入されているとともに、当該アーム部３１の先端の軸部３２が凹部４３の終端に回動可能に引っ掛っている。 In the present embodiment, the arm portion 31 of the hinge 30 is inserted into the recessed portions 43 positioned on both sides of the third panel piece portion 38 c, and the shaft portion 32 at the distal end of the arm portion 31 is the terminal end of the recessed portion 43. It is caught in a pivotable manner.
　したがって、吸込みグリル２０は、ヒンジ３０の軸部３２を中心に、作業用開口４０を閉じる第１の位置と、作業用開口４０を開放する第２の位置との間で回動可能に枠体２１に支持されている。 Therefore, the suction grill 20 is a frame body that is rotatable about the shaft portion 32 of the hinge 30 between a first position where the work opening 40 is closed and a second position where the work opening 40 is opened. 21 is supported.
　図１および図３は、吸込みグリル２０が第１の位置に回動された状態を開示している。第１の位置では、吸込みグリル２０の外枠部２２の外周部が枠体２１の内周部を周方向に連続して覆うとともに、第２のリブ２６が第１ないし第４のパネル片部３８ａ，３８ｂ，３８ｃ，３８ｄで規定された作業用開口４０の内側に嵌り込む。 1 and 3 disclose a state in which the suction grill 20 is rotated to the first position. In the first position, the outer peripheral portion of the outer frame portion 22 of the suction grill 20 continuously covers the inner peripheral portion of the frame body 21 in the circumferential direction, and the second ribs 26 are the first to fourth panel piece portions. It fits inside the work opening 40 defined by 38a, 38b, 38c, 38d.
　吸込みグリル２０が第１の位置に回動されると、ヒンジ３０のアーム部３１および補強リブ２８の第２の補強壁２８ｂが第３のコーナー部３９ｃおよび第４のコーナー部３９ｄの凹部４３に入り込む。さらに、補強リブ２８の第１の補強壁２８ａが第３のコーナー部３９ｃおよび第４のコーナー部３９ｄの逃げ溝４４に入り込む。 When the suction grill 20 is rotated to the first position, the arm portion 31 of the hinge 30 and the second reinforcing wall 28b of the reinforcing rib 28 are brought into the concave portions 43 of the third corner portion 39c and the fourth corner portion 39d. Get in. Further, the first reinforcing wall 28a of the reinforcing rib 28 enters the clearance grooves 44 of the third corner portion 39c and the fourth corner portion 39d.
　したがって、外枠部２２の外周角部２２ａを補強する補強リブ２８がヒンジ３０のアーム部３１に繋がっているにも拘らず、補強リブ２８およびアーム部３１が吸込みグリル２０の枠体２１と干渉するのを回避できる。 Therefore, the reinforcing rib 28 and the arm portion 31 interfere with the frame body 21 of the suction grill 20 even though the reinforcing rib 28 that reinforces the outer peripheral corner portion 22 a of the outer frame portion 22 is connected to the arm portion 31 of the hinge 30. Can be avoided.
　さらに、吸込みグリル２０が第１の位置に回動された状態では、外枠部２２の四つの外周角部２２ａが枠体２１の第１ないし第４のコーナー部３９ａ，３９ｂ，３９ｃ，３９ｄの内周部に被さり、前記凹部４３および逃げ溝４４を覆い隠している。このため、四つの外周角部２２ａの頂部は、第１ないし第４のコーナー部３９ａ，３９ｂ，３９ｃ，３９ｄの内周部から外周部に向けて大きく張り出している。 Further, in a state where the suction grill 20 is rotated to the first position, the four outer peripheral corner portions 22a of the outer frame portion 22 are in contact with the first to fourth corner portions 39a, 39b, 39c, 39d of the frame body 21. The inner periphery is covered and covers the recess 43 and the escape groove 44. For this reason, the tops of the four outer peripheral corners 22a greatly project from the inner peripheral part of the first to fourth corner parts 39a, 39b, 39c, 39d toward the outer peripheral part.
　図４は、吸込みグリル２０が第２の位置に回動された状態を開示している。第２の位置では、吸込みグリル２０は、枠体２１に対し下向きに回動されて、第３のパネル片部３８ｃから垂下した姿勢に保持されている。これにより、吸込みグリル２０の第１のリブ２５からフィルタ３５を取り外して清掃したり、フィルタ３５を交換するといった日常のメンテナンス作業を実施できる。 FIG. 4 discloses a state in which the suction grill 20 is rotated to the second position. In the second position, the suction grille 20 is rotated downward with respect to the frame body 21 and is held in a posture that hangs down from the third panel piece portion 38c. Thereby, it is possible to carry out daily maintenance work such as removing the filter 35 from the first rib 25 of the suction grill 20 and cleaning it, or replacing the filter 35.
　図４に示すように、外枠部２２の第１の辺部２４ａに吸込みグリル２０を第１の位置に保持する一対のフック４６が組み込まれている。フック４６は、第２のリブ２６の角部２６ａと隣り合うように、第１の辺部２４ａの長手方向に互いに離れている。フック４６は、第１のリブ２５と第２のリブ２６との間に収まる係合解除位置と、第２のリブ２６から外枠部２２の周囲に向けて突出する係合位置との間でスライド可能に外枠部２２に支持されている。 As shown in FIG. 4, a pair of hooks 46 that hold the suction grill 20 in the first position are incorporated in the first side portion 24 a of the outer frame portion 22. The hooks 46 are separated from each other in the longitudinal direction of the first side portion 24 a so as to be adjacent to the corner portion 26 a of the second rib 26. The hook 46 is between an engagement release position that fits between the first rib 25 and the second rib 26 and an engagement position that protrudes from the second rib 26 toward the periphery of the outer frame portion 22. The outer frame portion 22 is slidably supported.
　吸込みグリル２０が第１の位置に回動された状態でフック４６を係合位置にスライドさせると、フック４６の先端が第２のリブ２６を貫通して第１のパネル片部３８ａのロック孔４１に嵌り込む。これにより、吸込みグリル２０が作業用開口４０を塞ぐ第１の位置に保持される。 When the hook 46 is slid to the engagement position with the suction grill 20 being rotated to the first position, the tip of the hook 46 passes through the second rib 26 and the lock hole of the first panel piece 38a. 41. Accordingly, the suction grill 20 is held at the first position where the work opening 40 is closed.
　フック４６を係合位置から係合解除位置にスライドさせると、フック４６の先端が第１のパネル片部３８ａのロック孔４１から外れる。これにより、吸込みグリル２０を第１の位置から第２の位置に回動させることができる。 When the hook 46 is slid from the engaged position to the disengaged position, the tip of the hook 46 is detached from the lock hole 41 of the first panel piece 38a. Thereby, the suction grill 20 can be rotated from the first position to the second position.
　各フック４６は、板状の操作部４７を有している。操作部４７は、フック４６をスライドさせるための要素であって、作業者が手の指先を引っ掛けることができる程度の大きさを有している。図１、図９および図１０に示すように、操作部４７は、第１の辺部２４ａの長手方向に沿う両端において、格子部２３の横桟３４と平行に配置されている。 Each hook 46 has a plate-like operation portion 47. The operation unit 47 is an element for sliding the hook 46, and has a size that allows the operator to hook the fingertip of the hand. As shown in FIGS. 1, 9, and 10, the operation unit 47 is disposed in parallel with the cross rail 34 of the lattice unit 23 at both ends along the longitudinal direction of the first side 24 a.
　本実施形態によると、操作部４７は、第１の辺部２４ａの内周縁と、当該内周縁と隣り合う一つの横桟３４との間の隙間ｇから格子部２３の外に露出されている。さらに、操作部４７は、フック４６が係合位置にスライドされた時に、第１の辺部２４ａの内周縁に形成された凹所４８に入り込む。 According to the present embodiment, the operation portion 47 is exposed outside the lattice portion 23 from the gap g between the inner peripheral edge of the first side portion 24a and one horizontal rail 34 adjacent to the inner peripheral edge. . Furthermore, when the hook 46 is slid to the engagement position, the operation portion 47 enters a recess 48 formed on the inner peripheral edge of the first side portion 24a.
　そのため、吸込みグリル２０が第１の位置に保持された状態では、フック４６の操作部４７が第１の辺部２４ａの長手方向に沿う両端において格子部２３の外側の凹所４８に収納されている。したがって、操作部４７が第１の辺部２４ａに埋め込まれたような形態となり、操作部４７が目立ち難くなる。 Therefore, in a state where the suction grill 20 is held in the first position, the operation portion 47 of the hook 46 is housed in the recess 48 outside the lattice portion 23 at both ends along the longitudinal direction of the first side portion 24a. Yes. Accordingly, the operation unit 47 is embedded in the first side portion 24a, and the operation unit 47 is less noticeable.
　図１に示すように、天井パネル３は、熱交換器を通過した空気を室内に吐き出す四つの吹出口５０を有している。吹出口５０は、ドレンパン１１が有する四つの切欠部１５と向かい合うように、枠体２１の第１ないし第４のパネル片部３８ａ，３８ｂ，３８ｃ，３８ｄに形成されている。 As shown in FIG. 1, the ceiling panel 3 has four outlets 50 for discharging the air that has passed through the heat exchanger into the room. The blower outlet 50 is formed in the 1st thru | or 4th panel piece part 38a, 38b, 38c, 38d of the frame 21 so as to oppose the four notch parts 15 which the drain pan 11 has.
　四つのルーバー５１が天井パネル３の枠体２１に支持されている。ルーバー５１は、吹出口５０から室内に吹き出す空気の吹き出し方向を変化させる要素であって、フラットな細長い板状に形成されている。ルーバー５１は、吹出口５０を閉じる閉じ位置と、吹出口５０を開放するように傾斜する開き位置との間で回動可能である。ルーバー５１が閉じ位置に回動された状態では、当該ルーバー５１が水平となって第１ないし第４のパネル片部３８ａ，３８ｂ，３８ｃ，３８ｄを全面的に覆うようになっている。 Four louvers 51 are supported by the frame body 21 of the ceiling panel 3. The louver 51 is an element that changes the blowing direction of the air blown into the room from the blower outlet 50, and is formed in a flat and slender plate shape. The louver 51 is rotatable between a closed position that closes the air outlet 50 and an open position that is inclined so as to open the air outlet 50. When the louver 51 is turned to the closed position, the louver 51 is horizontal and covers the first to fourth panel pieces 38a, 38b, 38c, and 38d.
　図２に示すように、天井パネル３は、枠体２１の第１ないし第４のコーナー部３９ａ，３９ｂ，３９ｃ，３９ｄの箇所で室内ユニット２の下端に取り外し可能に連結されている。室内ユニット２と枠体２１の第１ないし第４のコーナー部３９ａ，３９ｂ，３９ｃ，３９ｄとの連結箇所は、互いに類似した構成を有するので、本実施形態では、第３のコーナー部３９ｃを代表して説明する。 As shown in FIG. 2, the ceiling panel 3 is detachably connected to the lower end of the indoor unit 2 at the first to fourth corner portions 39a, 39b, 39c, 39d of the frame body 21. Since the connecting portions of the indoor unit 2 and the first to fourth corner portions 39a, 39b, 39c, and 39d of the frame body 21 have similar structures, the third corner portion 39c is representative in this embodiment. To explain.
　図３、図５および図８に示すように、枠体２１の第３のコーナー部３９ｃは、室内ユニット２の一つの外周角部５ａの真下に位置された収容部５２を有している。収容部５２は、第３のコーナー部３９ｃの下方に向けて開口された凹みで規定されている。前記ケーシング４のブラケット７から下向きに突出された前記パネル固定ねじ８は、収容部５２の天板部５３を貫通して収容部５２に突出されている。 As shown in FIGS. 3, 5, and 8, the third corner portion 39 c of the frame body 21 has an accommodating portion 52 that is positioned directly below one outer peripheral corner portion 5 a of the indoor unit 2. The accommodating part 52 is prescribed | regulated by the dent opened toward the downward direction of the 3rd corner part 39c. The panel fixing screw 8 protruding downward from the bracket 7 of the casing 4 penetrates the top plate portion 53 of the storage portion 52 and protrudes into the storage portion 52.
　固定金具５５が収容部５２の天板部５３に回動可能に支持されている。固定金具５５は、スリット状の切込み５６を有している。固定金具５５は、切込み５６がパネル固定ねじ８の下端部に引っ掛かる係合位置と、切込み５６がパネル固定ねじ８の下端部から離脱する係合解除位置との間で回動可能である。固定金具５５を係合位置に回動させることで、固定金具５５がパネル固定ねじ８の下端の頭部と収容部５２の天板部５３との間で挟持される。これにより、天井パネル３が室内ユニット２の下端を下方から覆うように当該室内ユニット２の下端に固定される。 The fixing bracket 55 is rotatably supported by the top plate portion 53 of the housing portion 52. The fixture 55 has a slit-like cut 56. The fixing metal 55 is rotatable between an engagement position where the notch 56 is caught by the lower end portion of the panel fixing screw 8 and an engagement release position where the notch 56 is detached from the lower end portion of the panel fixing screw 8. By rotating the fixing bracket 55 to the engagement position, the fixing bracket 55 is sandwiched between the head at the lower end of the panel fixing screw 8 and the top plate portion 53 of the housing portion 52. Thereby, the ceiling panel 3 is fixed to the lower end of the indoor unit 2 so as to cover the lower end of the indoor unit 2 from below.
　さらに、枠体２１の第３のコーナー部３９ｃは、複数の係合孔５７およびねじ受け部５８を有している。係合孔５７は、枠体２１の外郭を規定する第３のコーナー部３９ｃの外周部に配置されている。係合孔５７は、収容部５２の周囲に位置するように枠体２１の周方向に互いに離れている。 Furthermore, the third corner portion 39 c of the frame body 21 has a plurality of engagement holes 57 and screw receiving portions 58. The engagement hole 57 is disposed on the outer peripheral portion of the third corner portion 39 c that defines the outline of the frame body 21. The engagement holes 57 are separated from each other in the circumferential direction of the frame body 21 so as to be positioned around the accommodating portion 52.
　図８に示すように、ねじ受け部５８は、第３のコーナー部３９ｃが有する凹部４３と隣り合う位置で収容部５２の天板部５３から下向きに突出されている。ねじ受け部５８の突出端部にカバー固定ねじ６０が取り付けられている。カバー固定ねじ６０は、ねじ受け部５８にねじ込まれた軸部６０ａと、軸部６０ａの終端に同軸状に設けられた頭部６０ｂと、を有している。頭部６０ｂは、軸部６０ａよりも外径が大きいとともに、円形の外周縁を有している。 As shown in FIG. 8, the screw receiving portion 58 protrudes downward from the top plate portion 53 of the accommodating portion 52 at a position adjacent to the concave portion 43 of the third corner portion 39c. A cover fixing screw 60 is attached to the protruding end of the screw receiving portion 58. The cover fixing screw 60 has a shaft portion 60a screwed into the screw receiving portion 58, and a head portion 60b provided coaxially at the end of the shaft portion 60a. The head 60b has a larger outer diameter than the shaft portion 60a and a circular outer peripheral edge.
　カバー固定ねじ６０は、枠体２１の第１のコーナー部３９ａと第３のコーナー部３９ｃとの間を結ぶ対角線の上に位置されている。さらに、ねじ受け部５８およびカバー固定ねじ６０の頭部６０ｂは、第１の位置に保持された吸込みグリル２０の一つの頂部２２ａで覆われる位置に設けられている。 The cover fixing screw 60 is positioned on a diagonal line connecting the first corner portion 39a and the third corner portion 39c of the frame body 21. Further, the screw receiving portion 58 and the head portion 60b of the cover fixing screw 60 are provided at a position covered with one top portion 22a of the suction grill 20 held at the first position.
　係合孔５７、ねじ受け部５８およびカバー固定ねじ６０は、第３のコーナー部３９ｃばかりでなく、第１のコーナー部３９ａ、第２のコーナー部３９ｂおよび第４のコーナー部３９ｄにも同様に設けられている。 The engagement hole 57, the screw receiving portion 58, and the cover fixing screw 60 are not only applied to the third corner portion 39c but also to the first corner portion 39a, the second corner portion 39b, and the fourth corner portion 39d. Is provided.
　図１ないし図３に示すように、枠体２１の第１ないし第４のコーナー部３９ａ，３９ｂ，３９ｃ，３９ｄは、夫々取り外し可能なコーナーカバー６２で覆われている。コーナーカバー６２は、第１ないし第４のコーナー部３９ａ，３９ｂ，３９ｃ，３９ｄを下方から全面的に覆うような大きさを有するフラットな板状の要素である。コーナーカバー６２の外周部は、互いに直交する二辺を含む直角に尖った形状を有している。コーナーカバー６２の内周部には、吸込みグリル２０の外周角部２２ａを避けるように直角に切り欠かれたカット部６３が形成されている。 As shown in FIGS. 1 to 3, the first to fourth corner portions 39a, 39b, 39c, and 39d of the frame body 21 are covered with removable corner covers 62, respectively. The corner cover 62 is a flat plate-like element having a size that covers the first to fourth corner portions 39a, 39b, 39c, and 39d from the bottom. The outer peripheral part of the corner cover 62 has a right-pointed shape including two sides orthogonal to each other. A cut portion 63 cut out at a right angle so as to avoid the outer peripheral corner portion 22 a of the suction grill 20 is formed on the inner peripheral portion of the corner cover 62.
　枠体２１に対するコーナーカバー６２の取り付け構造は、互いに共通であるので、枠体２１の第３のコーナー部３９ｃを代表して説明する。図１１ないし図１３に示すように、コーナーカバー６２は、複数の係合爪６４およびねじ固定部６５を有している。係合爪６４は、第３のコーナー部３９ｃの係合孔５７に対応するようにコーナーカバー６２の外周部の背面から突出されている。各係合爪６４の先端には、コーナーカバー６２のカット部６３に向けて直角に折れ曲がったフック６４ａが形成されている。 Since the structure of attaching the corner cover 62 to the frame body 21 is common to each other, the third corner portion 39c of the frame body 21 will be described as a representative. As shown in FIGS. 11 to 13, the corner cover 62 has a plurality of engaging claws 64 and a screw fixing portion 65. The engaging claw 64 protrudes from the back surface of the outer peripheral portion of the corner cover 62 so as to correspond to the engaging hole 57 of the third corner portion 39c. A hook 64 a that is bent at a right angle toward the cut portion 63 of the corner cover 62 is formed at the tip of each engagement claw 64.
　ねじ固定部６５は、カット部６３の中央からねじ受け部５８に向かうように突出されている。ねじ固定部６５は、前記カバー固定ねじ６０の軸部６０ａが摺動可能に貫通するガイド溝６６を有している。ガイド溝６６は、枠体２１の第１のコーナー部３９ａと第３のコーナー部３９ｃとの間を結ぶ対角線に沿う方向に延びているとともに、ねじ固定部６５の先端に開口されている。 The screw fixing portion 65 protrudes from the center of the cut portion 63 toward the screw receiving portion 58. The screw fixing portion 65 has a guide groove 66 through which the shaft portion 60a of the cover fixing screw 60 is slidably passed. The guide groove 66 extends in a direction along a diagonal line connecting the first corner portion 39 a and the third corner portion 39 c of the frame body 21 and is opened at the tip of the screw fixing portion 65.
　図１１ないし図１５に示すように、ガイド壁部７０がねじ固定部６５の突出端部に形成されている。ガイド壁部７０は、ガイド溝６６を囲むようにねじ固定部６５の外周部から立ち上げられているとともに、ガイド溝６６の開口端の方向に進むに従い互いに近接するように湾曲されている。さらに、ガイド壁部７０の内面は、カバー固定ねじ６０の頭部６０ｂの外周縁に対しガイド溝６６の開口縁に近づくように傾斜されたガイド面７１を構成している。 11 to 15, a guide wall portion 70 is formed on the protruding end portion of the screw fixing portion 65. The guide wall portion 70 is raised from the outer peripheral portion of the screw fixing portion 65 so as to surround the guide groove 66, and is curved so as to approach each other as it proceeds in the direction of the opening end of the guide groove 66. Further, the inner surface of the guide wall portion 70 constitutes a guide surface 71 that is inclined with respect to the outer peripheral edge of the head 60 b of the cover fixing screw 60 so as to approach the opening edge of the guide groove 66.
　図１４に最もよく示されるように、カバー固定ねじ６０を緩めた状態では、ガイド面７１は、カバー固定ねじ６０の頭部６０ｂとねじ固定部６５との間に介在されているとともに、頭部６０ｂの外周縁よりも頭部６０ｂの径方向に沿う内側に入り込むように傾いている。さらに、ガイド面７１の端は、ねじ固定部６５にまで達している。 As best shown in FIG. 14, when the cover fixing screw 60 is loosened, the guide surface 71 is interposed between the head 60b of the cover fixing screw 60 and the screw fixing portion 65, and the head It inclines so that it may enter the inner side along the radial direction of the head 60b rather than the outer periphery of 60b. Further, the end of the guide surface 71 reaches the screw fixing portion 65.
　加えて、ガイド壁部７０は、カバー固定ねじ６０の軸部６０ａが通過可能に切り欠かれた開口部７２を有している。開口部７２は、ガイド溝６６の先端に通じている。 In addition, the guide wall 70 has an opening 72 cut out so that the shaft 60a of the cover fixing screw 60 can pass therethrough. The opening 72 communicates with the tip of the guide groove 66.
　本実施形態において、コーナーカバー６２を枠体２１の第１ないし第４のコーナー部３９ａ，３９ｂ，３９ｃ，３９ｄに取り付けるには、まず、カバー固定ねじ６０を緩め、カバー固定ねじ６０の頭部６０ｂをねじ受け部５８から遠ざけておく。 In this embodiment, in order to attach the corner cover 62 to the first to fourth corner portions 39a, 39b, 39c, and 39d of the frame body 21, first, the cover fixing screw 60 is loosened, and the head portion 60b of the cover fixing screw 60 is removed. Is kept away from the screw receiving portion 58.
　この後、コーナーカバー６２の係合爪６４を第１ないし第４のコーナー部３９ａ，３９ｂ，３９ｃ，３９ｄの係合孔５７に挿入するとともに、ねじ固定部６５のガイド溝６６がカバー固定ねじ６０の軸部６０ａに近づくように、コーナーカバー６２を枠体２１の対角線の方向にスライドさせる。 Thereafter, the engaging claws 64 of the corner cover 62 are inserted into the engaging holes 57 of the first to fourth corner portions 39a, 39b, 39c, 39d, and the guide groove 66 of the screw fixing portion 65 is inserted into the cover fixing screw 60. The corner cover 62 is slid in the diagonal direction of the frame body 21 so as to approach the shaft portion 60a.
　このスライドにより、係合爪６４の先端のフック６４ａが係合孔５７の開口縁部に引っ掛かるとともに、カバー固定ねじ６０の軸部６０ａがねじ固定部６５のガイド溝６６に摺動可能に嵌り込む。軸部６０ａがガイド溝６６に嵌り込むことで、図１４および図１６に示すように、カバー固定ねじ６０の頭部６０ｂの外周縁の周囲にガイド壁部７０が位置される。 By this slide, the hook 64a at the tip of the engaging claw 64 is hooked on the opening edge of the engaging hole 57, and the shaft portion 60a of the cover fixing screw 60 is slidably fitted into the guide groove 66 of the screw fixing portion 65. . When the shaft portion 60a is fitted into the guide groove 66, the guide wall portion 70 is positioned around the outer peripheral edge of the head portion 60b of the cover fixing screw 60 as shown in FIGS.
　この状態で、カバー固定ねじ６０を締め付けると、頭部６０ｂの外周縁がガイド壁部７０のガイド面７１に摺動可能に接触する。この接触により、コーナーカバー６２には、ガイド面７１の傾斜に基づいてねじ受け部５８に向けて引き寄せるような力が加わり、コーナーカバー６２がガイド溝６６をガイドとして枠体２１の対角線の上を枠体２１の中心に向けて移動する。すなわち、ガイド溝６６は、コーナーカバー６２に前記力が加わった時に、コーナーカバー６２の移動方向を案内する。 In this state, when the cover fixing screw 60 is tightened, the outer peripheral edge of the head 60b comes into contact with the guide surface 71 of the guide wall 70 so as to be slidable. As a result of this contact, a force that draws the corner cover 62 toward the screw receiving portion 58 is applied to the corner cover 62 based on the inclination of the guide surface 71. It moves toward the center of the frame body 21. That is, the guide groove 66 guides the moving direction of the corner cover 62 when the force is applied to the corner cover 62.
　図１５に示すように、カバー固定ねじ６０の締め付けに伴い、頭部６０ｂの外周縁がガイド面７１とねじ固定部６５との間の境界に達すると、頭部６０ｂがねじ固定部６５に突き当たり、当該頭部６０ｂとねじ受け部５８との間でねじ固定部６５が挟み込まれる。この結果、図１７に示すように、コーナーカバー６２が枠体２１の第１ないし第４のコーナー部３９ａ，３９ｂ，３９ｃ，３９ｄの正規の位置に固定される。 As shown in FIG. 15, when the outer peripheral edge of the head 60 b reaches the boundary between the guide surface 71 and the screw fixing portion 65 as the cover fixing screw 60 is tightened, the head 60 b hits the screw fixing portion 65. The screw fixing portion 65 is sandwiched between the head portion 60b and the screw receiving portion 58. As a result, as shown in FIG. 17, the corner cover 62 is fixed at the normal positions of the first to fourth corner portions 39a, 39b, 39c, and 39d of the frame body 21.
　正規の位置では、コーナーカバー６２が吸込みグリル２０の外枠部２２および閉じ位置に回動されたルーバー５１と同一の平面上に位置される。さらに、コーナーカバー６２のカット部６３と外枠部２２の外周角部２２ａとの合わせ目、コーナーカバー６２とルーバー５１との合わせ目に生じる隙間が枠体２１の全てのコーナー部３９ａ，３９ｂ，３９ｃ，３９ｄにおいて略均等となる。 In the normal position, the corner cover 62 is positioned on the same plane as the outer frame portion 22 of the suction grill 20 and the louver 51 rotated to the closed position. Further, the gaps formed at the joints between the cut part 63 of the corner cover 62 and the outer peripheral corner part 22a of the outer frame part 22 and the joints between the corner cover 62 and the louver 51 are all corner parts 39a, 39b, 39c and 39d are substantially equal.
　それとともに、コーナーカバー６２の外周部が閉じ位置に回動されたルーバー５１の外周縁に対し一直線状に連続し、コーナーカバー６２とルーバー５１との一体感が得られる。 At the same time, the outer periphery of the corner cover 62 continues in a straight line with respect to the outer peripheral edge of the louver 51 rotated to the closed position, and a sense of unity between the corner cover 62 and the louver 51 is obtained.
　一方、カバー固定ねじ６０を単に緩めるだけの作業で、カバー固定ねじ６０によるねじ固定部６５の挟持を解除できる。このため、コーナーカバー６２のガイド溝６６がカバー固定ねじ６０の軸部６０ａから離脱する方向に、コーナーカバー６０を枠体２１の第１ないし第４のコーナー部３９ａ，３９ｂ，３９ｃ，３９ｄから引き出すことができる。 On the other hand, by simply loosening the cover fixing screw 60, the clamping of the screw fixing portion 65 by the cover fixing screw 60 can be released. Therefore, the corner cover 60 is pulled out from the first to fourth corner portions 39a, 39b, 39c, and 39d of the frame body 21 in the direction in which the guide groove 66 of the corner cover 62 is detached from the shaft portion 60a of the cover fixing screw 60. be able to.
　したがって、カバー固定ねじ６０をねじ受け部５８から取り外すことなくコーナーカバー６２を枠体２１から取り外すことができ、カバー固定ねじ６０が紛失するのを回避できる。 Therefore, the corner cover 62 can be removed from the frame body 21 without removing the cover fixing screw 60 from the screw receiving portion 58, and the cover fixing screw 60 can be prevented from being lost.
　本実施形態によると、コーナーカバー６２を枠体２１の第１ないし第４のコーナー部３９ａ，３９ｂ，３９ｃ，３９ｄに固定するに際して、カバー固定ねじ６０を締め付けると、カバー固定ねじ６０の頭部６０ｂの外周縁がガイド壁部７０のガイド面７１に接触する。これにより、コーナーカバー６２にねじ受け部５８に向けて引き寄せる力が作用する。この結果、コーナーカバー６２が枠体２１の対角線に沿って移動するとともに、正規の位置に固定される。 According to the present embodiment, when the corner cover 62 is fixed to the first to fourth corner portions 39a, 39b, 39c, 39d of the frame body 21, when the cover fixing screw 60 is tightened, the head 60b of the cover fixing screw 60 is secured. The outer peripheral edge of the guide contacts the guide surface 71 of the guide wall 70. As a result, a pulling force acts on the corner cover 62 toward the screw receiving portion 58. As a result, the corner cover 62 moves along the diagonal line of the frame body 21 and is fixed at a regular position.
　よって、コーナーカバー６２が枠体２１の全てのコーナー部３９ａ，３９ｂ，３９ｃ，３９ｄに対し精度よく位置合わせされることになり、天井パネル３の体裁が良好となる。 Therefore, the corner cover 62 is accurately aligned with all the corner portions 39a, 39b, 39c, and 39d of the frame body 21, and the appearance of the ceiling panel 3 is improved.
　特に本実施形態では、ルーバー５１の平坦度が補強リブ２８によって確保されているので、ルーバー５１が第１の位置に回動された状態では、ルーバー５１の両端とコーナーカバー６２との合わせ目に大きな段差が生じるのを回避できる。それとともに、ルーバー５１の両端とコーナーカバー６２との合わせ目に生じる隙間が目立ち難くなり、天井パネル３ひいては空気調和機１の外観を良好に維持する上で好都合となる。 In particular, in the present embodiment, the flatness of the louver 51 is ensured by the reinforcing ribs 28. Therefore, when the louver 51 is rotated to the first position, the joint between the both ends of the louver 51 and the corner cover 62 is obtained. A large level difference can be avoided. At the same time, the gap generated at the joint between the both ends of the louver 51 and the corner cover 62 becomes inconspicuous, which is advantageous for maintaining the appearance of the ceiling panel 3 and thus the air conditioner 1 well.
　さらに、カバー固定ねじ６０を締め付けるだけの単純な作業でコーナーカバー６２が正規の位置に固定されるので、コーナーカバー６２の姿勢が変化しないように細心の注意を払いながらカバー固定ねじ６０を締め付けるといった面倒で手間のかかる作業が不要となる。このため、コーナーカバー６２を枠体２１に容易に固定することができ、作業性が向上する。 Furthermore, since the corner cover 62 is fixed at a normal position by a simple operation of simply tightening the cover fixing screw 60, the cover fixing screw 60 is tightened while paying close attention so that the posture of the corner cover 62 does not change. Troublesome and time-consuming work is not required. For this reason, the corner cover 62 can be easily fixed to the frame body 21, and workability is improved.
　本発明のいくつかの実施形態を説明したが、これらの実施形態は、例として提示したものであり、発明の範囲を限定することは意図していない。これら新規な実施形態は、その他の様々な形態で実施されることが可能であり、発明の要旨を逸脱しない範囲で、種々の省略、置き換え、変更を行うことができる。これら実施形態やその変形は、発明の範囲や要旨に含まれるとともに、特許請求の範囲に記載された発明とその均等の範囲に含まれる。 Although several embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.
　１…空気調和機、２…室内ユニット、３…天井パネル、２１…枠体、３９ａ，３９ｂ，３９ｃ，３９ｄ…第１ないし第４のコーナー部、５７…係合孔、５８…ねじ受け部、６０…カバー固定ねじ、６０ｂ…頭部、６２…コーナーカバー、６４…係合爪、６５…ねじ固定部、７０…ガイド壁部。 DESCRIPTION OF SYMBOLS 1 ... Air conditioner, 2 ... Indoor unit, 3 ... Ceiling panel, 21 ... Frame, 39a, 39b, 39c, 39d ... 1st thru | or 4th corner part, 57 ... Engagement hole, 58 ... Screw receiving part, 60 ... cover fixing screw, 60b ... head, 62 ... corner cover, 64 ... engagement claw, 65 ... screw fixing part, 70 ... guide wall part.

Claims (9)

  1. 　複数のコーナー部を有する枠体と、
    　前記枠体の前記コーナー部を取り外し可能に覆う複数のコーナーカバーと、を備えた天井パネルであって、
    　前記各コーナー部は、前記枠体の外郭を規定するとともに複数の係合孔を有する外周部と、前記外周部よりも内側に位置されたねじ受け部と、前記ねじ受け部にねじ込まれたカバー固定ねじと、を有し、
    　前記各コーナーカバーは、前記係合孔に取り外し可能に引っ掛かる複数の係合爪と、前記ねじ受け部に向けて突出されたねじ固定部と、を有し、
    　前記ねじ固定部は、前記カバー固定ねじの軸部が貫通するとともに前記ねじ固定部の先端に開口されたガイド溝と、前記ガイド溝を囲むように前記ねじ固定部から突出され、前記カバー固定ねじを締め付けた時に、前記カバー固定ねじの頭部の外周縁に接することで前記コーナーカバーを前記コーナー部の上の正規な位置に向けて移動させるガイド壁部と、を含む天井パネル。     A frame having a plurality of corner portions;
    A plurality of corner covers that detachably cover the corner portion of the frame, and a ceiling panel comprising:
    Each corner portion defines an outer periphery of the frame body and has an outer peripheral portion having a plurality of engagement holes, a screw receiving portion positioned inside the outer peripheral portion, and a cover screwed into the screw receiving portion. A fixing screw,
    Each corner cover has a plurality of engaging claws that are removably hooked in the engaging hole, and a screw fixing portion that protrudes toward the screw receiving portion,
    The screw fixing portion protrudes from the screw fixing portion so as to surround the guide groove, and a guide groove opened at a tip of the screw fixing portion while the shaft portion of the cover fixing screw passes therethrough, and the cover fixing screw And a guide wall portion that moves the corner cover toward a normal position on the corner portion by coming into contact with an outer peripheral edge of the head of the cover fixing screw when the cover is tightened.
  2. 　前記ガイド壁部は、前記頭部の前記外周縁に対し傾斜されたガイド面を有し、当該ガイド面に前記頭部の前記外周縁が接することで前記コーナーカバーを前記ねじ受け部に向けて引き寄せる力が前記コーナーカバーに加わる請求項１に記載の天井パネル。 The guide wall portion has a guide surface inclined with respect to the outer peripheral edge of the head portion, and the corner cover is directed toward the screw receiving portion by contacting the outer peripheral edge of the head portion with the guide surface. The ceiling panel according to claim 1, wherein a pulling force is applied to the corner cover.
  3. 　前記ガイド溝は、前記コーナーカバーに前記力が加わった時に前記コーナーカバーの移動方向を案内する請求項２に記載の天井パネル。 The ceiling panel according to claim 2, wherein the guide groove guides a moving direction of the corner cover when the force is applied to the corner cover.
  4. 　前記ガイド壁部は、前記カバー固定ねじの前記軸部が通過可能に切り欠かれた開口部を有する請求項１ないし請求項３のいずれか一項に記載の天井パネル。 The ceiling wall according to any one of claims 1 to 3, wherein the guide wall portion has an opening cut out so that the shaft portion of the cover fixing screw can pass therethrough.
  5. 　前記カバー固定ねじは、前記コーナーカバーを前記コーナー部に固定する時、および前記コーナーカバーを前記コーナー部から取り外す時のいずれにおいても、前記軸部が前記ねじ受け部にねじ込まれた状態に保たれる請求項１に記載の天井パネル。 The cover fixing screw keeps the shaft portion screwed into the screw receiving portion both when the corner cover is fixed to the corner portion and when the corner cover is removed from the corner portion. The ceiling panel according to claim 1.
  6. 　前記枠体は、当該枠体の周方向に隣り合う前記コーナー部の間を結ぶパネル片部と、前記パネル片部に開口された吹出口と、前記枠体に支持され、前記吹出口から吹き出す空気の吹き出し方向を変化させるルーバーと、を備え、
    　前記ルーバーが前記吹出口を閉じた状態では、前記コーナーカバーと前記ルーバーとの間の境界に合わせ目が形成される請求項１に記載の天井パネル。     The frame body is supported by the frame body and blown out from the air outlet, with a panel piece connecting between the corner portions adjacent to each other in the circumferential direction of the frame body, an air outlet opened in the panel piece portion A louver that changes the blowing direction of air,
    The ceiling panel according to claim 1, wherein a seam is formed at a boundary between the corner cover and the louver when the louver closes the air outlet.
  7. 　前記ルーバーが前記吹出口を閉じた状態では、前記コーナーカバーと前記ルーバーとが同一の平面上に位置される請求項６に記載の天井パネル。 The ceiling panel according to claim 6, wherein the corner cover and the louver are positioned on the same plane when the louver closes the outlet.
  8. 　前記枠体で取り囲まれた吸込みグリルをさらに備え、前記吸込みグリルは、前記コーナーカバーに対応する位置に複数の外周角部を有するとともに、当該外周角部の頂部で前記ねじ固定部および前記カバー固定ねじの前記頭部が覆い隠された請求項１に記載の天井パネル。 The suction grille surrounded by the frame body further includes a plurality of outer peripheral corner portions at positions corresponding to the corner covers, and the screw fixing portion and the cover fixing at the top of the outer peripheral corner portion. The ceiling panel according to claim 1, wherein the head of the screw is obscured.
  9. 　天井裏に据え付けられる室内ユニットと、
    　前記室内ユニットの下端を覆う請求項１ないし請求項６のいずれか一項に記載の天井パネルと、
    　を具備した空気調和機。     An indoor unit installed behind the ceiling;
    The ceiling panel according to any one of claims 1 to 6, which covers a lower end of the indoor unit;
    Air conditioner equipped with.
PCT/JP2017/007402 2017-02-27 2017-02-27 Ceiling panel and air conditioner WO2018154765A1 (en)

Priority Applications (3)

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EP17897295.6A EP3587952B1 (en) 2017-02-27 2017-02-27 Ceiling panel and air conditioner
JP2019500992A JP6772361B2 (en) 2017-02-27 2017-02-27 Ceiling panel and air conditioner
PCT/JP2017/007402 WO2018154765A1 (en) 2017-02-27 2017-02-27 Ceiling panel and air conditioner

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JPS5963205U (en) * 1982-10-22 1984-04-25 シャープ株式会社 Parts mounting device
JP2003202151A (en) * 2002-01-10 2003-07-18 Mitsubishi Electric Corp Ceiling embedded type air conditioner
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JP2006234316A (en) * 2005-02-25 2006-09-07 Mitsubishi Heavy Ind Ltd Decorative panel for air conditioner and air conditioner using the same

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JPS5016802U (en) * 1973-06-11 1975-02-22
JPS5963205U (en) * 1982-10-22 1984-04-25 シャープ株式会社 Parts mounting device
JP2003202151A (en) * 2002-01-10 2003-07-18 Mitsubishi Electric Corp Ceiling embedded type air conditioner
JP2004085002A (en) * 2002-08-23 2004-03-18 Advanced Kucho Kaihatsu Center Kk Indoor unit of air conditioner
JP2006234316A (en) * 2005-02-25 2006-09-07 Mitsubishi Heavy Ind Ltd Decorative panel for air conditioner and air conditioner using the same

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EP3587952A1 (en) 2020-01-01
EP3587952A4 (en) 2020-11-25

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