JP5452456B2 - Air conditioner mounting apparatus and air conditioner - Google Patents

Description

  The present invention relates to a ceiling cassette type air conditioner mounting apparatus and an air conditioner equipped with the mounting apparatus, and more particularly to a decorative panel mounting apparatus.

  As a mounting device for a conventional ceiling cassette type air conditioner (hereinafter simply referred to as “air conditioner”), the main body is suspended and supported in the ceiling space by hanging bolts, and then the decorative panel is attached to the lower surface of the main body. Temporary support means for temporarily supporting the decorative panel on the main body at a position below the predetermined mounting height position, and the decorative panel is temporarily moved from the temporary support state of the temporary support means to be attached to the main body at the predetermined height position. The thing provided with the panel attachment means is proposed (for example, refer patent document 1). Here, the temporary support means is provided on the decorative panel, and can be locked to a hook projecting on the outer wall surface of the main body casing, and a connecting plate attached to the lower end of the temporary hook. The panel mounting means is constituted by a screw that is screwed to the connecting plate and whose relative height position with respect to the connecting plate can be changed by rotation.

Japanese Patent Laid-Open No. 7-332697

  However, the mounting device for an air conditioner disclosed in Patent Document 1 is such that the temporary hanging bracket is hooked on the hook provided on the outer wall surface of the main body casing, and the screw is screwed to the connecting plate of the temporary hanging bracket, thereby making the decorative panel. However, in order to adjust the suspension height of the main casing, it is necessary to adjust the suspension height of the air conditioner main body using suspension bolts, nuts, washers, spanners, and the like. Therefore, there is a problem that position adjustment is difficult and mounting workability is poor. Also, if the hanging height is too high for the ceiling surface, the back of the decorative panel is strongly pressed against the ceiling surface and the decorative panel warps, or conversely if the hanging height is too low for the ceiling surface, There has been a design problem that a gap is generated between the ceiling surface and the decorative panel. In addition, there is a similar problem when performing maintenance on the air conditioner body. Further, the panel mounting structure including the temporary support means and the panel mounting means has a problem that the number of parts is large and the cost is disadvantageous.

  The present invention has been made in order to solve the above-described problems. By making it possible to absorb variations in the suspension height adjustment of the air conditioner main body on the decorative panel side with a simple configuration, the suspension height can be reduced. It is an object of the present invention to provide an air conditioner mounting device that can be easily adjusted, further improve the efficiency of mounting work, and can always perform stable mounting work and maintenance work, and an air conditioner equipped with the mounting device. .

An air conditioner mounting device according to the present invention includes a main body and a decorative panel attached to a lower surface of the main body, and the main body is supported by being suspended in a ceiling space by a plurality of suspension bolt means. A mounting device, which is formed in the decorative panel and has a panel mounting hole having a screw hole at the bottom, and a screw receiver that is screwed to the screw hole of the panel mounting hole and fixed to the main body with a mounting screw The screw receiver rotates in one direction, and a flange portion projecting in the outer peripheral direction of the screw receiver that contacts the bottom of the panel mounting hole when the maximum amount of upward movement is reached. The decorative panel has a height level alignment between the opening end portion of the panel mounting hole and the flange portion when the screw receiver rotates to the other side and reaches the maximum limit of the downward movement amount. for, the path It is obtained by a structure having a rib formed on the opening end of the Le mounting hole portion.

  Since the air conditioner mounting device of the present invention is configured as described above, variations in the suspension height adjustment of the air conditioner body can be easily absorbed on the decorative panel side, and the suspension height can be easily adjusted. Further, the efficiency of the mounting work is improved and the stable mounting work and maintenance work can be performed at all times.

It is a whole perspective view which shows the air conditioner and its attachment apparatus in Embodiment 1 of this invention. It is a whole perspective view which shows the attachment structure of the decorative panel of an air conditioner. It is principal part sectional drawing which shows the attachment structure of the decorative panel in the case of excessive lifting. It is principal part sectional drawing which shows the attachment structure of the decorative panel in the case of insufficient lifting. It is a perspective view which shows the screw receiver used for attachment of the decorative panel in Embodiment 2 of this invention. (A) is sectional drawing of a screw receptacle, (b) is a bottom view of a screw receptacle.

  Embodiments of an air conditioner and its attachment device according to the present invention will be described below with reference to the drawings.

Embodiment 1 FIG.
FIG. 1 is an overall perspective view showing an air conditioner and its attachment device according to Embodiment 1 of the present invention, and FIG. 2 is an overall perspective view showing an attachment structure of a decorative panel of the air conditioner.
In these drawings, the air conditioner 10 includes a main body 1 and a decorative panel 2 attached to the lower surface of the main body 1. Although the internal structure of the main body 1 is not shown, it has the same structure as that of the conventional example, and includes a blower and a heat exchanger as main devices, and heat exchange is performed on the air taken in from the suction port using the heat exchanger. Thus, cold air or warm air is generated, and air conditioned thereby is blown into the room.

  The main body 1 is supported by being suspended by a plurality of suspension bolt means 3 in the space behind the ceiling with the lower surface facing the ceiling opening 50. As shown in FIG. 1 in an enlarged perspective view, the suspension bolt means 3 is provided on a suspension bolt 31 embedded in a beam (not shown) and opposite side surfaces of the main body 1. A suspension fitting 34 provided with a long hole 32 for passing through and a notch 33 for attaching / detaching the suspension bolt 31 is provided. It is supposed to be.

  The decorative panel 2 is attached to the main body 1 so as to cover the ceiling opening 50. The attachment structure of the decorative panel 2 will be described later. 1 and 2, the decorative panel 2 includes a rear panel 21 and a front panel 22 that is hinged to the rear panel 21 so as to be openable and closable. It is composed of The back panel 21 and the front panel 22 face downward when the decorative panel 2 is attached. The rear panel 21 has a hook 24 projecting upward from the rear side and is locked to the temporary hook 11 provided on the lower surface of the main body 1 as shown in an enlarged perspective view of the temporary hooking means 23 on the lower side of FIG. By doing so, it is held in a temporarily fixed state. Note that the decorative panel 2 is not limited to the one constituted by the two panels of the back panel 21 and the front panel 22 as described above, and may be constituted by one panel. Also, the direction of blowing out the conditioned air is not limited to one direction, and may be two directions or four directions.

The decorative panel 2 is attached to the main body 1 at a plurality of locations (six locations in this example) by a screw method. The attachment structure of the decorative panel 2 is shown in FIGS.
FIG. 3 is a cross-sectional view showing a decorative panel mounting structure when the main body 1 is too lifted, and an enlarged cross-sectional view is also shown. FIG. 4 is a cross-sectional view showing a decorative panel mounting structure when the main body 1 is insufficiently lifted, and an enlarged cross-sectional view is also shown.

As shown in these drawings, a panel mounting hole 26 having a screw hole 25 at the bottom is formed in the back panel 21 of the decorative panel 2. The screw receiver 4 fixed to the main body 1 with the mounting screw 5 is screwed to the screw hole 25 of the panel mounting hole portion 26. The screw receiver 4 is formed with a male screw on the outer periphery and provided with an insertion hole 42 for the mounting screw 5 at the bottom of the hole, and projects upward from the back panel 21 by rotation. In order to restrict the protruding dimension d to a predetermined value, the screw receiver 4 is formed with a flange portion 41 that contacts the bottom portion of the panel mounting hole portion 26.
Further, the screw receiver 4 is drawn into the panel mounting hole 26 by rotating in the opposite direction. A rib 27 for aligning the height level with the flange portion 41 with respect to a predetermined retraction dimension of the screw receiver 4 (that is, the protruding dimension d = 0) is an opening end of the panel mounting hole portion 26. It is formed in the part.

  Next, the operation of the mounting device for the air conditioner 10 configured as described above, in particular, the operation of the decorative panel mounting structure will be described.

  The main body 1 of the air conditioner 10 is supported by being suspended in the ceiling space by the above-described suspension bolt means 3. Further, the decorative panel 2 is configured such that the hook 24 of the above-described temporary hooking means 23 is hooked on the temporary hook 11 of the main body 1 or the mounting screw 5 is loosely tightened to such an extent that the screw receiver 4 can be rotated. Temporarily attach. As shown in FIG. 3, when the main body 1 is overlifted, that is, the height difference ΔH between the lower surface (mounting seat surface 12) of the main body 1 and the ceiling surface 51 reaches a predetermined maximum value (ΔHmax). In the case of such a lifting height, the screw receiver 4 is screwed into the screw hole 25 of the panel mounting hole 26 to the maximum extent. Then, the flange portion 41 of the screw receiver 4 hits the bottom of the panel mounting hole 26, and at the same time, the tip of the screw receiver 4 protrudes upward and comes into contact with the mounting seat surface 12 of the main body 1. Therefore, when the flange portion 41 of the screw receiver 4 comes into contact with the bottom portion of the panel mounting hole portion 26, it is determined that the main body 1 is overlifted. As an indication of excessive lifting, if the maximum height difference ΔHmax is about 10 mm, it can be clearly determined that the ceiling surface 51 is excessively lifted.

  On the other hand, as shown in FIG. 4, when the main body 1 is insufficiently lifted, that is, the height difference ΔH between the lower surface (mounting seat surface 12) of the main body 1 and the ceiling surface 51 reaches a predetermined minimum value (ΔHmin). When it is at such a lifting height, the screw receiver 4 is moved backward by rotating in the opposite direction. At that time, when the flange portion 41 of the screw receiver 4 and the rib 27 formed at the opening end portion of the panel mounting hole portion 26 are flush with each other, it is determined that the main body 1 is insufficiently lifted. At this time, the projecting dimension d = 0 of the screw receiver 4 is set, and the mounting seat surface 28 of the decorative panel 2 (rear panel 21) and the tip of the screw receiver 4 are on the same plane. Therefore, when the flange portion 41 of the screw receiver 4 and the rib 27 of the panel mounting hole portion 26 are on the same plane, it is determined that the main body 1 is insufficiently lifted. As an indication of insufficient lifting, if the difference ΔHmin in the minimum height is about 3 mm, there is a clear gap with respect to the ceiling surface 51, and it can be determined that the lifting is insufficient.

  When the difference in the lifting height of the main body 1 with respect to the ceiling surface 51 is within an allowable range (that is, ΔHmin ≦ ΔH ≦ ΔHmax), the screw panel 4 is slightly rotated to finely adjust the decorative panel 2 and then attached. The screw receiver 4 is fixed to the main body 1 with the screw 5. Thereby, the decorative panel 2 is attached to the main body 1 via the screw receiver 4, and the decorative panel 2 can be brought into contact with the ceiling surface 51 without a gap. When the difference ΔH in the lifting height of the main body 1 is outside the allowable range, it is necessary to once adjust the position of the hanging bracket 34.

  As described above, the predetermined protrusion dimension d of the screw receiver 4, that is, the upward movement amount of the screw receiver 4 when the flange portion 41 of the screw receiver 4 contacts the bottom of the panel mounting hole 26, and the predetermined amount of the screw receiver 4. , That is, the amount of downward movement of the screw receiver 4 when the flange 41 of the screw receiver 4 is flush with the rib 27 formed at the opening end of the panel mounting hole 26 is set in advance. Thus, it is possible to easily determine whether the main body 1 is overlifted or insufficiently lifted. Therefore, even if the lifting height of the main body 1 with respect to the ceiling surface 51 is somewhat rough, the decorative panel 2 can be easily and accurately attached if the above-described difference ΔH in the lifting height is within an allowable range. . Furthermore, since the variation in the suspension height adjustment of the main body 1 can be absorbed on the decorative panel side, the efficiency of the mounting operation is improved, and a stable mounting operation and maintenance operation can always be performed.

Further, when the screw receiver 4 moves to the maximum at the time of mounting due to excessive lifting, the flange portion 41 provided on the screw receiver 4 contacts the bottom of the panel mounting hole portion 26. It can be determined that it is the maximum limit of the allowable adjustment value as well as prevention of omission.
On the other hand, when the screw receiver 4 is moved downward as much as possible at the time of attachment due to insufficient lifting, the flange portion 41 provided on the screw receiver 4 and the rib 27 provided on the opening end portion of the panel attachment hole portion 26 Since they are on the same plane, it is possible to determine that the adjustment limit is the minimum limit as well as preventing the screw receiver 4 from coming off.
Furthermore, since the decorative panel mounting structure of the present embodiment has a small number of parts, the cost can be reduced.

Embodiment 2. FIG.
In the second embodiment, the screw receiver 4A configured as shown in FIGS. 5 and 6 is used in place of the screw receiver 4 according to the second embodiment. Other configurations are the same as those of the first embodiment.
5 is a perspective view of the screw receiver 4A according to the second embodiment, FIG. 6A is a cross-sectional view of the screw receiver 4A, and FIG.

As shown in these drawings, the screw receiver 4A is provided with a convex portion 44 extending in the axial direction from the opening end (or perpendicular to the rotation surface of the screw receiver 4A) on the inner surface of the hole 43. is there.
By pushing the convex portion 44 in the rotation direction with a fingertip or the like, the screw receiver 4A is rotated up and down.

  Since the screw receiver 4A according to the second embodiment is configured as described above, the convex portion 44 can prevent a finger from slipping in the rotation direction of the screw receiver 4A, and can also rotate the screw receiver 4A. Since fine adjustment is possible, more stable and reliable mounting work and maintenance work can be performed.

  DESCRIPTION OF SYMBOLS 1 Main body, 2 Decorative panel, 3 Suspension bolt means, 4 Screw receiver, 4A screw receiver, 5 Mounting screw, 10 Air conditioner (ceiling cassette type air conditioner), 11 Temporary hanging part, 12 Mounting seat surface, 21 Back panel , 22 Front panel, 23 Temporary hooking means, 24 Hook, 25 Screw hole, 26 Panel mounting hole, 27 Rib, 28 Mounting seat surface, 31 Hanging bolt, 32 Long hole, 33 Notch, 34 Hanging bracket, 35 Washer, 36 nut, 41 flange part, 42 insertion hole, 43 hole part, 44 convex part, 50 ceiling opening part, 51 ceiling surface.

Claims (4)

A main body and a decorative panel attached to the lower surface of the main body;
The main body is a mounting device for an air conditioner that is supported by being suspended in a ceiling space by a plurality of suspension bolt means,
A panel mounting hole formed in the decorative panel and having a screw hole at the bottom;
A screw receiver that is screwed to the screw hole of the panel mounting hole and fixed to the main body with a mounting screw.
The screw receiver has a flange portion that protrudes in the outer peripheral direction of the screw receiver that rotates in one direction and comes into contact with the bottom of the panel mounting hole when the maximum amount of upward movement is reached ,
The decorative panel is for aligning the height level of the opening end of the panel mounting hole and the flange when the screw receiver rotates to the other and reaches the maximum limit of the downward movement amount . , Having a rib formed at the opening end of the panel mounting hole .
An air conditioner mounting apparatus characterized by the above. In the range where the screw receiver has a predetermined protruding dimension and a predetermined retracted dimension with respect to the decorative panel,
The decorative panel is in contact with the ceiling surface without a gap;
The apparatus for mounting an air conditioner according to claim 1. Receiving said screw has a hole for mounting a screw which is fixed to the main body is inserted, having a convex portion extending in the axial direction of the receiving the screw on the inner surface of the bore,
The mounting device for an air conditioner according to claim 1 or 2,   An air conditioner comprising the mounting device for an air conditioner according to any one of claims 1 to 3.

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