JP4941455B2 - Indoor unit installation structure - Google Patents

Description

  The present invention relates to an indoor unit installation structure for installing an indoor unit of an air conditioner on an indoor wall.

Conventionally, what is described in patent document 1 is known as an indoor unit installation structure for attaching the indoor unit of an air conditioner to an indoor wall. In the indoor unit installation structure disclosed in Patent Document 1, an engagement claw and an engagement member are provided at the upper and center portions of the frame of the indoor unit, and the engagement claw and the engagement member are fixed to the indoor wall. It is hung on the hook of the installed mounting plate. Further, a bottom frame forming the lower side of the frame is fixed by a fixing screw to a fixing surface located on the lower side of the installation plate. The fixing screw is covered with a front grill of the indoor unit.
In this way, the bottom frame of the indoor unit is fixed to the installation plate with the fixing screw, so that the engagement of the frame with the installation plate can be prevented from being released. Further, since the fixing screw is covered with the front grille, the appearance quality is not impaired.

JP-A-8-114352

  However, according to the configuration of the indoor unit installation structure described in Patent Document 1, when the indoor unit is installed, even if it is forgotten to fix the bottom frame of the indoor unit to the installation plate with a fixing screw, Since the part to which the screw should be attached is covered with the front grille, there is a possibility that the screw is left without noticing that the fixing screw is not attached. In this case, for example, the indoor unit may be shaken or jumped up due to vibration such as an earthquake, so that the frame and the mounting plate may be disengaged.

  Accordingly, the present invention has been made to solve the above-described problems, and provides an indoor unit installation structure that enables more reliable installation of an indoor unit without impairing the appearance quality. For the purpose.

  The indoor unit installation structure of the first invention is an indoor unit installation structure of an air conditioner having an installation plate fixed to an indoor wall and an indoor unit attached to the installation plate, wherein the installation plate is A first engagement portion for engaging the indoor unit; and a first attachment hole for attaching the indoor unit, wherein the indoor unit engages with the first engagement portion. A frame having a joining portion and a second attachment hole penetrating to a position facing the first attachment hole in a state where the second engagement portion is engaged with the first engagement portion, and the first attachment A fixing portion that is inserted into both the hole and the second mounting hole; and a lid portion that closes an opening formed in the frame so that the fixing portion can be inserted into and removed from the outside with respect to the second mounting hole. A mounting member having the first fixing hole and the first mounting hole. Wherein the by being inserted into the mounting hole is configured to be closed the opening in the lid.

In this indoor unit installation structure, the movement of the frame relative to the installation plate can be restricted by the fixing portion inserted into the first attachment hole and the second attachment hole. Thereby, it becomes difficult to disengage the frame of the indoor unit and the installation plate, and the installation state of the indoor unit is stabilized.
Moreover, since the opening part for inserting a fixing part into the 1st attachment hole and the 2nd attachment hole from the exterior is closed by a cover part, an external appearance quality is not impaired.
Furthermore, the attachment member having the fixing portion and the lid portion is configured so that the opening portion cannot be closed by the lid portion when the fixing portion is not inserted into the first attachment hole and the second attachment hole. It is possible to prevent the opening from being closed by the lid without inserting the fixing portion into the first attachment hole and the second attachment hole. As a result, it is possible to prevent the fixed part from being left without noticing that it has not been inserted. As a result, the installation state of the indoor unit can be reliably stabilized. On the other hand, since the attachment member has the fixing portion and the lid portion, the opening portion can be closed by the lid portion in a series of flows after the fixing portion is inserted. As a result, it is possible to efficiently perform the installation work and to prevent the opening portion from being forgotten to be closed by the lid portion.

  In an indoor unit installation structure according to a second aspect of the present invention, the fixed portion is tilted with respect to the swinging direction of the frame with the engagement position of the first engagement portion and the second engagement portion as a fulcrum. It is inserted in.

  In this indoor unit installation structure, when the inner peripheral portion of the first mounting hole abuts the fixed portion, the frame swings with the engagement position between the first engagement portion and the second engagement portion as a fulcrum. The movement is restrained. Thereby, the rocking | swiveling which uses the said engagement position of an indoor unit as a fulcrum can be suppressed. In this case, the swing of the indoor unit can be suppressed without complicating the shape of the fixed portion.

  The indoor unit installation structure of the third invention is characterized in that the fixed portion is inserted so as to be orthogonal to the swing direction.

  In this indoor unit installation structure, the inner peripheral portion of the first mounting hole abuts the fixed portion from a direction orthogonal to the insertion direction of the fixed portion, whereby the first engaging portion and the second engaging portion are The frame is restrained from swinging with the engagement position as a fulcrum. Thereby, the rocking | swiveling which uses the said engagement position of the indoor unit as a fulcrum can be suppressed reliably.

  In the indoor unit installation structure according to a fourth aspect of the present invention, the fixed portion is inserted through both the first mounting hole and the second mounting hole, and the first mounting hole and the It has a retaining means for restraining relative movement in the direction of being extracted from the second mounting hole.

  In this indoor unit installation structure, the relative movement in the direction in which the fixing portion is extracted from the first mounting hole and the second mounting hole is restricted by the retaining means. In this case, the movement of the indoor unit in a direction parallel to the insertion direction of the fixed portion can also be restricted.

  In an indoor unit installation structure according to a fifth aspect of the present invention, the retaining means is formed in the fixed portion inserted into both the first mounting hole and the second mounting hole, and the first mounting hole and the first mounting hole 2 It is a protrusion part which protrudes in a radial direction outer side in the insertion direction front end side rather than the position of 2 attachment holes.

  In this indoor unit installation structure, the protruding portion formed on the fixing portion prevents the fixing portion from coming out of the first mounting hole and the second mounting hole. In this case, the movement of the indoor unit in a direction parallel to the insertion direction of the fixed portion can be restricted with a simple configuration.

  In the indoor unit installation structure according to a sixth aspect of the invention, the attachment member has a connecting portion that connects the lid portion and the fixed portion so that the lid portion can swing with respect to the fixed portion. Features.

  In this indoor unit installation structure, after the fixing portion is inserted into the first mounting hole and the second mounting hole, the lid portion can be swung to close the opening. In this case, the lid portion can be swung to an appropriate position that does not interfere with the insertion of the fixing portion. Thereby, the insertion operation of the fixing portion is facilitated. For example, the position of the fixed portion can be easily confirmed by swinging the lid from a predetermined position to cover the opening.

  As described above, according to the present invention, the following effects can be obtained.

  In the first invention, the fixing portion makes it difficult to disengage the frame of the indoor unit from the installation plate, and the installation state of the indoor unit is stabilized. Moreover, since the opening is closed by the lid, the appearance quality is not impaired. Further, it is possible to prevent the fixed part from being left without noticing that it is not inserted. Moreover, it is possible to prevent the opening from being forgotten to be closed by the lid.

  In the second and third inventions, the swing of the indoor unit can be suppressed without complicating the shape of the fixed portion.

  Moreover, in 4th invention and 5th invention, the movement of the indoor unit to the direction parallel to the insertion direction of a fixing | fixed part can also be restrained.

  In the sixth aspect of the invention, the lid portion can be swung to an appropriate position that does not interfere with the insertion of the fixing portion, so that the insertion operation of the fixing portion is facilitated.

  Hereinafter, an embodiment of an indoor unit installation structure according to the present invention will be described based on the drawings.

(First embodiment)
FIG. 1 is a schematic cross-sectional view of an indoor unit installation structure according to the first embodiment of the present invention. FIG. 2 is a view of the indoor unit in FIG. 1 as viewed from below. FIG. 1 is a diagram schematically showing the main part of the AA cross section in FIG. In FIG. 1 and FIG. 2, the attachment member for fixing the lower end portion of the indoor unit to the installation plate is omitted because it will be described in detail in other drawings.

  As shown in FIG. 1, the indoor unit installation structure 100 of the first embodiment is an indoor unit installation structure of an air conditioner having an installation plate 1 and an indoor unit 2.

  The mounting plate 1 is fixed to the indoor wall 3 using an attachment member such as a screw (not shown). The mounting plate 1 includes a first engaging portion 11 for engaging the indoor unit 2 in a position near the upper end, and a first mounting hole 12b for mounting the indoor unit 2 in a position near the lower end.

  The first engagement portion 11 is formed so as to protrude from the vicinity of the upper end of the installation plate 1 to the indoor side, and is formed in a bowl shape in which the end portion on the indoor side is bent upward. The first engagement portion 11 is configured in a plate shape having a predetermined width in the longitudinal direction of the indoor unit 2 (the direction perpendicular to the paper surface in FIG. 1). A plurality of the first engaging portions 11 are provided in the longitudinal direction of the indoor unit 2 and are formed to have a strength capable of supporting the load of the indoor unit 2.

  The mounting plate 1 has a bent portion 12 that is bent so as to protrude from the indoor wall 3 at the lower portion. The bent portion 12 has an attachment portion 12a having a surface facing obliquely downward on the indoor side. The first mounting hole 12b passes through the mounting portion 12a.

  The indoor unit 2 is attached to an installation plate 1 fixed to the indoor wall 3 and is connected to an outdoor unit provided outdoors by a refrigerant pipe (not shown) to constitute a part of the air conditioner. Yes. The indoor unit 2 includes a front grille 21 (frame) that covers the front surface, and a base frame 22 (frame) to which the front grille 21 is attached and to which a heat exchanger, a fan, a drain pan, and the like (not shown) are fixed. Have. The base frame 22 has a ceiling frame 23 extending in a direction substantially perpendicular to the indoor wall 3 on the upper side, and a bottom frame 24 formed by being partially bent on the lower side.

  A second engagement portion 23a is provided at the end of the ceiling frame 23 on the installation plate 1 side so as to protrude downward. The second engaging portion 23 a is hooked on the first engaging portion 11 from above, and the movement in the direction away from the installation plate 1 is restrained by the first engaging portion 11. In addition, since the lower end part of the base frame 22 is arranged so as to wrap around below the mounting portion 12a of the mounting plate 1, the upward movement of the base frame 22 causes the bottom frame 24 to move to the mounting portion 12a of the mounting plate 1. The attachment portion 24a is restrained by contact.

  Further, the bottom frame 24 has an attachment portion 24a that is disposed substantially parallel to the attachment portion 12a of the installation plate 1 in a state where the second engagement portion 23a is engaged with the first engagement portion 11. is doing. And in the said attachment part 24a, the 2nd attachment hole 24b has penetrated in the position facing the 1st attachment hole 12b.

  The front grille 21 is installed so as to cover the ceiling frame 23 and the bottom frame 24 from the outside. As shown in FIGS. 1 and 2, the front grill 21 has a substantially rectangular opening 21 a at a position corresponding to the second mounting hole 24 b of the bottom frame 24. As will be described later, the opening 21a is formed in the front grille 21 so that the pin portion 31 of the mounting member 30 can be inserted into and removed from the second mounting hole 24b.

  FIG. 3 is a perspective view of the AA cross-section in FIG. 2, and is an enlarged view showing only the indoor wall 3 side at the lower end in the indoor unit installation structure. In this figure, a state in which the bottom frame 24 and the mounting plate 1 are fixed by the mounting member 30 is shown. FIG. 4A is a plan view of the mounting member 30. Moreover, FIG.4 (b) is a B direction arrow line view in Fig.4 (a). Moreover, FIG.4 (c) is CC sectional view taken on the line in Fig.4 (a).

  As shown in FIGS. 3 and 4, the attachment member 30 is integrally formed with a pin portion 31 (fixed portion), a lid portion 32, and a connecting portion 33 that couples the pin portion 31 and the lid portion 32. It is a thing.

  The pin portion 31 is formed in a cylindrical shape and is inserted into both the first mounting hole 12b and the second mounting hole 24b. In addition, the pin part 31 is inserted into the 1st attachment hole 12b and the 2nd attachment hole 24b through the opening part 21a from the outer side of the front grille 21 by the installation operator.

  As shown in FIG. 1, the base frame 22 is supported by the first engagement portion 11 by hooking the second engagement portion 23 a from above onto the first engagement portion 11 located on the upper end side of the installation plate 1. Has been. Therefore, when the base frame 22 is not fixed to the installation plate 1 or the like on the lower end side, the indoor unit 2 is engaged with the engagement position P (the first engagement portion 11) between the first engagement portion 11 and the second engagement portion 23a. And a position where the second engaging portion 23a abuts), there is a possibility of swinging so that the lower end side is separated from the indoor wall 3 (the swinging direction is indicated by an arrow X in FIG. 1). The pin portion 31 is inserted into the first mounting hole 12b and the second mounting hole 24b while being inclined with respect to the swinging direction of the base frame 22 (in FIG. 1, the insertion direction of the pin portion 31 is indicated by an arrow). Y). That is, the pin portion 31 is arranged such that the insertion direction of the pin portion 31 is inclined with respect to the tangent line of the arc drawn by the second mounting hole 24b when the base frame 22 swings (indicated by a dashed line Z in FIG. 1). Is inserted into the first mounting hole 12b and the second mounting hole 24b. Thereby, at the time of rocking | fluctuation, rocking | fluctuation with respect to the installation board 1 of the base frame 22 is restrained in the position where the pin part 31 contact | abuts to the inner peripheral part of the 1st attachment hole 12b.

  The angle between the mounting portion 24a of the bottom frame 24 and the mounting portion 12a of the mounting plate 1 is adjusted so that the insertion direction of the pin portion 31 is orthogonal to the swinging direction X, that is, the tangent Z You may comprise so that it may orthogonally cross with respect to. In this case, the swing of the base frame 22 can be restricted, and the swing width of the base frame 22 that is allowed by the gap between the mounting holes 12b and 24b and the pin portion 31 can be reduced.

  As shown in FIG. 4, the lid portion 32 is fixed by fitting a substantially rectangular plate-like member 32 a corresponding to the opening portion 21 a of the front grille 21 and the plate-like member 32 a into the opening portion 21 a of the front grille 21. And a pair of engaging claws 32b. And the cover part 32 is engage | inserted by the opening part 21a of the front grille 21, as shown in FIG. 3, and the said opening part 21a is closed. In addition, it is prevented that the cover part 32 comes off from the opening part 21a because a pair of engaging nail | claw part 32b engages with the peripheral part of the opening part 21a. Further, in the state where the lid portion 32 is fitted in the opening portion 21a, the outer surface of the lid portion 32 and the outer surface of the front grille 21 around the opening portion 21a are substantially flush. Therefore, the cover part 32 is not conspicuous in appearance, and the appearance quality of the indoor unit 2 is not impaired.

As shown in FIG. 4, the connecting portion 33 includes a pin fixing substrate 33 a to which the base end of the pin portion 31 is fixed, and a hinge portion 33 b that connects the pin fixing substrate 33 a and the lid portion 32.
The hinge portion 33b is formed in a thin sheet shape as compared with the pin fixing substrate 33a. Then, it is possible to fold the pin fixing substrate 33a to the lid portion 32 side while bending and deforming the hinge portion 33b. That is, the lid portion 32 is configured to be swingable with respect to the pin portion 31 by the deformation of the hinge portion 33b.

  The pin portion 31 is formed to have a length that cannot be accommodated in a space between the opening portion 21a and the bottom frame 24 in a state where the lid portion 32 is fitted into the opening portion 21a. That is, in order to fit the lid portion 32 into the opening portion 21a, it is necessary to insert the pin portion 31 into the first attachment hole 12b and the second attachment hole 24b. That is, the attachment member 30 is configured such that the opening portion 21a can be closed by the lid portion 32 when the pin portion 31 is inserted into the first attachment hole 12b and the second attachment hole 24b.

  By configuring the mounting member 30 as described above, the opening portion 21a is closed by the lid portion 32 in a state where the installation operator forgets to insert the pin portion 31 into the first mounting hole 12b and the second mounting hole 24b. Can be prevented. Moreover, since the pin part 31 and the cover part 32 are integrally formed, it is hard to forget to close the opening part 21a with the cover part 32 after inserting the pin part 31. Thereby, installation work can be performed reliably.

As described above, the indoor unit installation structure according to the first embodiment includes the installation plate 1 fixed to the indoor wall 3 and the indoor unit 2 attached to the installation plate 1.
The installation plate 1 includes a first engagement portion 11 for engaging the indoor unit 2 and a first attachment hole 12b for attaching the indoor unit 2.
The indoor unit 2 includes a front grill 21, a foundation frame 22, and a mounting member 30.
The base frame 22 faces the first attachment hole 12b in a state where the second engagement portion 23a that engages with the first engagement portion 11 and the second engagement portion 23a engages with the first engagement portion 11. And a second mounting hole 24b penetrating in the position.
The attachment member 30 is attached to the front grille 21 so that the pin part 31 inserted into both the first attachment hole 12b and the second attachment hole 24b and the pin part 31 can be inserted and removed from the second attachment hole 24b from the outside. And a lid portion 32 for closing the formed opening portion 21a.
The attachment member 30 is configured such that the opening portion 21a can be closed by the lid portion 32 by inserting the pin portion 31 into the first attachment hole 12b and the second attachment hole 24b.

According to this configuration, the movement of the base frame 22 relative to the installation plate 1 can be restricted by the pin portion 31 inserted into the first mounting hole 12b and the second mounting hole 24b. As a result, the engagement between the base frame 22 of the indoor unit 2 and the installation plate 1 is difficult to disengage, the installation state of the indoor unit 2 is stabilized, and the seismic strength can be improved.
Moreover, since the opening part 21a for inserting the pin part 31 into the 1st attachment hole 12b and the 2nd attachment hole 24b from the exterior is closed by the cover part 32, an external appearance quality is not impaired.
Furthermore, the attachment member 30 having the pin portion 31 and the lid portion 32 closes the opening portion 21a with the lid portion 32 when the pin portion 31 is not inserted into the first attachment hole 12b and the second attachment hole 24b. Since it is comprised so that it cannot do, it can prevent that the opening part 21a is closed by the cover part 32, without inserting the pin part 31 in the 1st attachment hole 12b and the 2nd attachment hole 24b. As a result, it is possible to prevent the pin unit 31 from being left without noticing that it has not been inserted. Thereby, the installation state of the indoor unit 2 can be reliably stabilized. On the other hand, since the attachment member 30 has the pin part 31 and the cover part 32, after inserting the pin part 31, the opening part 21a can be closed by the cover part 32 by a series of flows. As a result, it is possible to efficiently perform the installation work and to prevent the opening 21a from being forgotten to be closed by the lid portion 32.

  Moreover, the pin part 31 is inserted in the state inclined with respect to the rocking | fluctuation direction of the base frame 22 which makes the fulcrum the engaging position of the 1st engaging part 11 and the 2nd engaging part 23a.

  According to this structure, when the inner peripheral part of the 1st attachment hole 12b contact | abuts to the pin part 31, the base frame 22 which uses the engaging position of the 1st engaging part 11 and the 2nd engaging part 23a as a fulcrum is used. Oscillation is restrained. Thereby, the rocking | swiveling which uses the said engagement position of the indoor unit 2 as a fulcrum can be suppressed. In this case, the swing of the indoor unit 2 can be suppressed without complicating the shape of the pin portion 31.

  The pin portion 31 may be inserted so as to be orthogonal to the swinging direction.

  According to this configuration, the first engagement portion 11 and the second engagement portion 23a are brought into contact with the pin portion 31 from the direction orthogonal to the insertion direction of the pin portion 31 by the inner peripheral portion of the first mounting hole 12b. The swinging of the basic frame 22 with the engagement position as a fulcrum is restrained. Thereby, the rocking | swiveling which uses the said engagement position of the indoor unit 2 as a fulcrum can be suppressed reliably.

  In addition, when the pin part 31 is arrange | positioned in parallel with the direction (the tangential direction of the circular arc which the pin part 31 draws at the time of rocking | swiveling) along the rocking | fluctuation direction, the indoor unit 2 to the direction inclined from the rocking | fluctuation direction The movement of is restricted.

  Further, the attachment member 30 includes a connecting portion 33 that connects the lid portion 32 and the pin portion 31 so that the lid portion 32 can swing with respect to the pin portion 31.

  According to this structure, after inserting the pin part 31 in the 1st attachment hole 12b and the 2nd attachment hole 24b, it becomes possible to rock | fluctuate the cover part 32 and to close the opening part 21a. In this case, the lid portion 32 can be swung to an appropriate position that does not get in the way when the pin portion 31 is inserted. Thereby, the insertion operation of the pin part 31 becomes easy. For example, the position of the pin portion 31 can be easily confirmed by swinging and shifting the lid portion 32 from a predetermined position so as to cover the opening 21a.

  In addition, it is good also as an attachment member which fixed the pin part 31 not only to the case where the attachment member 30 has the connection part 33 but to the cover part 32 directly. In this case, since the mounting member has a simple configuration, the manufacturing cost of the mounting member can be reduced.

  Moreover, it is not restricted to the case where it comprises so that the pin part 31 may become the same outer diameter in a longitudinal direction. For example, you may form the protrusion part which protrudes in a radial direction outer side in the insertion direction front-end | tip side rather than the position of the 1st attachment hole 12b and the 2nd attachment hole 24b in the pin part 31. FIG.

  Specifically, when inserting into the tip end side in the axial direction of the pin portion 31, it is deformed so as to reduce the diameter by abutting against the edges of the first mounting hole 12b and the second mounting hole 24b. Protruding portions protruding outward in the radial direction that are hooked on the edge portions of the first mounting hole 12b and the second mounting hole 24b and restrain the movement of the pin portion 31 in the extraction direction may be integrally formed. The protruding portion is located on the distal side in the insertion direction from the positions of the first mounting hole 12b and the second mounting hole 24b when the pin portion 31 is inserted into the first mounting hole 12b and the second mounting hole 24b. It forms in the position which becomes.

  According to this configuration, the protruding portion formed on the pin portion 31 prevents the pin portion 31 from coming off from the first mounting hole 12b and the second mounting hole 24b. In this case, the movement of the indoor unit 2 in a direction parallel to the insertion direction of the pin portion 31 can be restricted with a simple configuration. For example, even if the swinging direction of the indoor unit 2 and the insertion direction of the shaft portion 46 are parallel, the swinging of the indoor unit 2 can be restricted.

  Further, the present invention is not limited to the case where the projecting portion is formed on the pin portion 31, and for example, after the pin portion 31 is inserted into the first mounting hole 12b and the second mounting hole 24b, the first mounting hole 12b and the second mounting hole 24b. By separately attaching a member (prevention means) that is larger than the inner diameter of the first mounting hole 12b and does not pass through the first mounting hole 12b at a position closer to the distal end side in the insertion direction than the position of It is also possible to prevent.

(Second Embodiment)
FIG. 5 is a cross-sectional perspective view of a lower end indoor wall side of the indoor unit installation structure according to the second embodiment. This figure is a cross-sectional perspective view corresponding to FIG. 3 used in the description of the first embodiment. FIG. 6 is a cross-sectional view of the mounting member 40 according to the second embodiment corresponding to FIG. 4C used in the description of the first embodiment.
The indoor unit installation structure according to the second embodiment is different from the indoor unit installation structure according to the first embodiment in that the configuration of the mounting member is different. The same members as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

  As shown in FIGS. 5 and 6, the attachment member 40 according to the second embodiment includes a push-turn rivet 41 (fixed portion), a lid portion 42, and a connecting portion that couples the push-turn rivet 41 and the lid portion 42. 43.

  As shown in FIG. 6, the push turn rivet 41 includes a grommet portion 44 and a pin 45. The grommet portion 44 includes a cylindrical shaft portion 46 and a head portion 47 having a diameter larger than that of the shaft portion 46 at the end portion of the shaft portion 46. The cylindrical shaft portion 46 has a plurality of slits 46 a formed in the longitudinal direction of the shaft portion 46. Further, the shaft portion 46 has a constricted portion 46 b formed so that the diameter of the cylindrical hole is smaller than that of the head portion 47 side.

  The pin 45 includes a shaft portion 48 inserted into the shaft portion 46 of the grommet portion 44, and a head portion 49 having a diameter larger than that of the shaft portion 48 at the end portion of the shaft portion 48. A diameter-reduced portion 48 a that is partially reduced in diameter is formed at the tip of the shaft portion 48. Further, a cross groove is formed on the end surface of the head portion 49 so that the head portion 49 can be rotated around the axis by a screwdriver or the like.

  Then, from the state in which the constricted portion 46b in the shaft portion 46 of the grommet portion 44 is fitted to the reduced diameter portion 48a in the shaft portion 48 of the pin 45 (the state shown in FIG. 6), the head portion 49 of the pin 45 is changed to the grommet portion. By being pushed toward the side 44, the tip end side of the shaft portion 46 of the grommet portion 44 is configured to expand in diameter (see FIG. 7 described later).

  A through hole 43c is formed in the fixed substrate 43a of the connecting portion 43, and the head portion 47 of the grommet portion 44 is formed in the fixed substrate 43a in a state where the shaft portion 46 of the grommet portion 44 passes through the through hole 43c. It is fixed against. The fixed substrate 43a is integrally connected to the lid portion 42 through the hinge portion 43b.

  The through hole 43c is formed as a long hole, and the shaft part 46 of the grommet part 44 is inserted into the long hole so that the grommet part 44 can be slid in the longitudinal direction of the long hole. You may attach to 43a. In this case, alignment when the shaft portion 46 of the grommet portion 44 is inserted into the first mounting hole 12b and the second mounting hole 24b is facilitated.

  Moreover, the grommet part 44, the connection part 43, and the cover part 42 can also be formed by integral molding. In this case, the trouble of attaching the grommet part 44 to the connection part 43 can be saved.

  The grommet portion 44 is not limited to being fixed to the fixed substrate 43a, and may be directly fixed to the hinge portion 43b. The length of the shaft portion 46 of the grommet portion 44 that can be inserted into the first mounting hole 12b and the second mounting hole 24b can be made longer.

FIG. 7 is a cross-sectional view of the attachment member 40 corresponding to FIG. 6 schematically showing a state when the installation plate 1 and the bottom frame 24 are fixed by the push turn rivet 41.
As shown in FIGS. 5 and 7, the push-turn rivet 41 has the shaft 45 when the pin 45 is pushed in with the shaft portion 46 of the grommet portion 44 inserted into the first mounting hole 12 b and the second mounting hole 24 b. The mounting plate 1 and the bottom frame 24 are sandwiched between the enlarged diameter portion 46c formed by deforming the tip side of the portion 46 and the head portion 47, and the mounting plate 1 and the bottom frame 24 are fixed.

  The push turn rivet 41 is fixed to the connecting portion 43 so that the push turn rivet 41 cannot be accommodated in a space sandwiched between the opening portion 21a and the bottom frame 24 with the lid portion 42 fitted in the opening portion 21a. . That is, in order to fit the lid portion 42 into the opening portion 21a, it is necessary to insert the shaft portion 46 of the push turn rivet 41 into the first attachment hole 12b and the second attachment hole 24b. That is, the mounting member 40 is configured such that the opening 21a can be closed by the lid portion 42 when the push turn rivet 41 is inserted into the first mounting hole 12b and the second mounting hole 24b.

  Further, when the pin 45 of the push turn rivet 41 is pushed in, the enlarged diameter portion 46c (projection) protrudes radially outward at the distal end side in the insertion direction from the positions of the first attachment hole 12b and the second attachment hole 24b in the shaft portion 46. Therefore, the relative movement of the shaft portion 46 in the direction of being extracted from the first mounting hole 12b and the second mounting hole 24b is restricted.

  The push turn rivet 41 is configured such that the pin 45 is pulled out from the grommet portion 44 by rotating the pin 45 about the axis. As a result, the enlarged diameter portion 46c of the shaft portion 46 is deformed to the state before the pin 45 is pushed in (the state shown in FIG. 6), so that the shaft portion 46 is extracted from the first mounting hole 12b and the second mounting hole 24b. be able to.

  As described above, in the indoor unit installation structure according to the second embodiment, the attachment member 40 has the push-turn rivet 41. The shaft portion 46 of the push turn rivet 41 is inserted through both the first mounting hole 12b and the second mounting hole 24b, and the first mounting hole 12b and the second mounting hole 24b of the shaft portion 46 are inserted. It has an enlarged diameter portion 46c that restrains relative movement in the direction of being extracted.

  In this indoor unit installation structure, relative movement in the direction in which the shaft portion 46 is pulled out from the first mounting hole 12b and the second mounting hole 24b is restrained by the enlarged diameter portion 46c formed in the shaft portion 46 of the push-turn rivet 41. Is done. In this case, the movement of the indoor unit 2 in a direction parallel to the insertion direction of the shaft portion 46 can also be restricted. For example, even if the swinging direction of the indoor unit 2 and the insertion direction of the shaft portion 46 are parallel, the swinging of the indoor unit 2 can be restricted.

  As mentioned above, although embodiment of this invention was described based on drawing, it should be thought that a specific structure is not limited to these embodiment. The scope of the present invention is shown not by the above description of the embodiments but by the scope of claims for patent, and further includes all modifications within the meaning and scope equivalent to the scope of claims for patent.

  For example, in the above-described second embodiment, the relative movement in the direction in which the shaft portion 46 is extracted from the first mounting hole 12b and the second mounting hole 24b is restrained by the enlarged diameter portion 46c of the push-turn rivet 41. A female screw is formed on the inner peripheral surface of the first mounting hole 12b and the second mounting hole 24b, and the male screw is screwed with a screw having a fixing portion formed on the outer peripheral surface, whereby the first mounting of the fixing portion is performed. Relative movement in the direction of extraction from the hole 12b and the second mounting hole 24b may be restricted.

  By using the present invention, it is possible to more reliably install the indoor unit stably without deteriorating the appearance quality.

It is a cross-sectional schematic diagram of the indoor unit installation structure which concerns on 1st Embodiment of this invention. It is the figure which looked at the indoor unit in FIG. 1 from the downward direction. It is a perspective view of the AA section in Drawing 2, and is an enlarged view of the lower end part indoor wall side of an indoor unit installation structure. It is a figure which shows the detail of an attachment member, (a) is a top view, (b) is a B direction arrow directional view in (a), (c) is CC cross section in (a). It is an arrow view. It is a section perspective view by the side of a lower end indoor wall of an indoor unit installation structure concerning a 2nd embodiment. It is sectional drawing of the attachment member which concerns on 2nd Embodiment. It is sectional drawing of the attachment member in the state in which the installation board and the bottom frame were fixed by the push turn rivet.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Installation board 2 Indoor unit 3 Indoor wall 11 1st engaging part 12 Bending part 12a Attachment part 12b First attachment hole 21 Front grille (frame)
21a Opening 22 Basic frame (frame)
23 ceiling frame 23a 2nd engaging part 24 bottom frame 24a attachment part 24b 2nd attachment hole 30 attachment member 31 pin part (fixed part)
32 Lid part 33 Connecting part 40 Mounting member 41 Push turn rivet 42 Lid part 43 Connecting part 46c Expanded diameter part (protruding part, retaining means)

Claims (6)

An indoor unit installation structure for an air conditioner having an installation plate (1) fixed to an indoor wall (3) and an indoor unit (2) attached to the installation plate,
The installation plate includes a first engagement portion (11) for engaging the indoor unit, and a first attachment hole (12b) for attaching the indoor unit,
The indoor unit is
A second engaging portion (23a) that engages with the first engaging portion, and a position that faces the first mounting hole in a state where the second engaging portion is engaged with the first engaging portion. A second mounting hole (24b) that has a frame (21, 22),
A fixing portion (31, 41) inserted into both the first mounting hole and the second mounting hole, and the frame is formed so that the fixing portion can be inserted and removed from the outside with respect to the second mounting hole. An attachment member (30, 40) having a lid (32, 42) for closing the opening (21a),
The interior of the mounting member is configured such that the opening can be closed by the lid when the fixing portion is inserted into the first mounting hole and the second mounting hole. Machine installation structure.   The fixing portion is inserted in a state in which the fixing portion is inclined with respect to a swinging direction of the frame with an engaging position of the first engaging portion and the second engaging portion as a fulcrum. Item 2. The indoor unit installation structure according to Item 1.   The indoor unit installation structure according to claim 2, wherein the fixing portion is inserted so as to be orthogonal to the swinging direction. The fixing portion is inserted through both the first mounting hole and the second mounting hole,
4. The retaining means (46 c) for restraining relative movement of the fixing portion in a direction of being extracted from the first mounting hole and the second mounting hole. 5. The indoor unit installation structure described in the section.   The retaining means is formed in the fixing portion inserted into both the first mounting hole and the second mounting hole, and is more distal in the insertion direction than the positions of the first mounting hole and the second mounting hole. 5. The indoor unit installation structure according to claim 4, wherein the indoor unit installation structure is a projecting portion (46 c) protruding outward in the radial direction.   The said attachment member has a connection part (33, 43) which connects the said cover part and the said fixing | fixed part so that the said cover part can rock | fluctuate with respect to the said fixing | fixed part. The indoor unit installation structure according to any one of claims 5 to 5.

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