JP2013224771A - Mounting device for ceiling suspension type air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the strength of a suspension metal fitting without thickening a sheet metal against the change of load to the metal fitting with the change of distance from a metal mounting surface to a fixing position of a suspension bolt according to the fixing position of the suspension bolt.SOLUTION: A suspension metal fitting 11 having a long hole 11c through which a suspension volt 12 is passed and a guide slit 11d for introducing the suspension bolt 12 into the long hole 11c from the side and fixed to a suspension metal fitting mounting surface 10 of an air conditioner body 2 is provided. The long hole 11c has a shape in which a distance from the metal fitting surface 10 to the fixing position of the suspension bolt 12 according to the fixing position of the suspension bolt 12 varies. The guide slit 11d is configured so that a part of both side edges of the guide slit 11d may be caught in an area of a suspension metal fitting fixing means for fixing the suspension bolt 12 to the suspension metal fitting 11 when the suspension bolt 12 is fixed to an end part of the far away side of the distance from the suspension metal fitting surface 10 of the long hole 11c.

Description

  The present invention relates to a mounting device for a ceiling-suspended air conditioner.

  The ceiling-suspended type air conditioner mounting device includes four hanging bolts suspended from the ceiling and hanging brackets fixed at four locations on the side surface of the air conditioner main body. It is designed to be clamped and fixed with a pair of washers and nuts. For this reason, the suspension metal fitting that plays a role of connection with the suspension bolt is required to have good workability and sufficient strength to support the ceiling-suspended air conditioner.

  The sufficient strength described here is not limited to the vertical load caused by the weight of the ceiling-suspended air conditioner, but must be sufficient for a load far exceeding the weight of a heavy earthquake. Don't be.

  In general, the suspension fitting has an elongated hole provided so that it can be finely adjusted in accordance with the position of the suspension bolt, and a guide slit for introducing the suspension bolt into the elongated hole from the side. It is formed so as to abut on the longitudinal middle portion in a T shape. In addition, the angle between the direction in which the suspension bolt is introduced from the side with respect to the elongated hole of the suspension bolt, that is, the direction in which the guide slit is extended, and the surface where the suspension bracket is fixed (the side surface of the air conditioner body) is fixed to the suspension bracket. However, there exists what is perpendicular | vertical (henceforth a hanging bracket shape A) (for example, refer patent document 1). In addition, some suspension fittings have an angle between the extending direction of the guide slit and the suspension fitting installation surface (side surface of the air conditioner main body) that is not vertical (hereinafter referred to as a suspension fitting shape B). And, like the hanging bracket of the hanging bracket shape B, the extending direction of the guide slit (introduction direction with respect to the elongated hole of the suspension bolt) is inclined with respect to the hanging bracket installation surface, so that the ceiling-suspended air conditioner is achieved. The four suspension bolt mounting operations can be handled from only two directions, and the workability is improved.

Japanese Patent Laid-Open No. 07-019592 (FIG. 4)

  Installation of the four suspension bolts can be performed from only two directions by making the suspension bolt introduction direction oblique to the suspension bracket installation surface, as in the case of the suspension bracket shape B described above. Improves. However, in the hanging bracket shape B bracket formed so that the guide slit hits the long middle part of the elongated hole in a T shape, the longitudinal direction of the elongated hole is also inclined with respect to the hanging bracket installation surface. Depending on where the bolt is located in the longitudinal direction of the elongated hole, the distance between the suspension fitting installation surface and the suspension bolt changes.

  The hanger is weakest against the force applied in the direction coaxial with the hanger bolt (the direction perpendicular to the ground), which is the direction in which the sheet metal is bent. When a force is applied from the suspension bolt to the suspension fitting, the moment load applied to the suspension fitting varies depending on the distance from the suspension bolt to the suspension fitting installation surface.

  Therefore, in the hanging bracket shape B, it is necessary to obtain a strength sufficient for the maximum load that varies depending on the position of the suspension bolt, and the strength is required more than in the case of the hanging bracket shape A suspension bracket. Measures such as thickening the sheet metal were necessary.

  The present invention has been made in order to solve the above-described problems, and the load on the suspension fitting due to the change in the distance from the suspension fitting installation surface to the suspension bolt fixation position depending on the fixing position of the suspension bolt. It is an object of the present invention to provide an attachment device for a ceiling-suspended air conditioner that can improve the strength of a hanging metal fitting without increasing the thickness of the sheet metal.

  The ceiling-suspended air conditioner mounting device according to the present invention has a long hole through which a suspension bolt suspended from the ceiling is passed, and a guide slit that introduces the suspension bolt into the elongated hole from the side. The hanger is equipped with a hanger that is fixed to the hanger mounting surface of the harmony machine, and the elongated hole has a shape in which the distance from the hanger mounting surface to the hanger bolt fixing position varies depending on the hanger bolt fixing position. When the hanging bolt is fixed to the end of the long hole that is far from the surface where the hanging bracket is installed, the slit is placed on both sides of the guide slit in the area of the hanging bracket fixing means for fixing the hanging bolt to the hanging bracket. A part of the edge is formed.

  According to the present invention, the elongated hole has a shape in which the distance from the hanging bracket installation surface to the suspension bolt fixing position varies depending on the suspension bolt fixing position, and the guide slit is from the elongated hole suspension bracket installation surface. When the suspension bolt is fixed to the end of the far side, the part of both side edges of the guide slit is hung in the area of the suspension bracket fixing means for fixing the suspension bolt to the suspension bracket. Therefore, the strength of the suspension fitting can be locally improved at the portion where the load is maximized, and deformation of the suspension fitting can be suppressed.

It is sectional drawing of the side view for demonstrating the attachment state of the well suspension type air conditioner concerning Embodiment 1 of this invention. It is a perspective view which shows the attachment apparatus of the ceiling suspension type air conditioner concerning Embodiment 1 of this invention. It is a schematic diagram which shows the positional relationship of the suspension metal fitting and washer of the attachment apparatus of the ceiling suspension type air conditioner which concerns on Embodiment 1 of this invention. It is a schematic diagram which shows the positional relationship of the hanging metal fitting and washer of the attachment apparatus of the ceiling suspension type air conditioner which concerns on Embodiment 2 of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

Embodiment 1. FIG.
First, the definition of the suspension type air conditioner according to the present embodiment will be described. The suspended air conditioner according to the present embodiment includes a heat exchanger that exchanges heat between room air and a refrigerant in order to air condition the room air, and a blower that sends room air to the heat exchanger. The air conditioner body is fastened to a suspension bolt suspended from the ceiling, and the air conditioner body is attached in a suspended state. Specifically, it has a decorative panel mentioned as an example of the present embodiment, and the ceiling-embedded air conditioner in which the decorative panel is exposed in the indoor space, or the ceiling-suspended type in which the air conditioner main body is exposed in the indoor space. There is a type of air conditioner, and the hanging type air conditioner according to the present embodiment includes the ceiling embedded type and the ceiling type air conditioner. Here, a ceiling-embedded air conditioner is taken as an example, and the following description is given. However, the ceiling-embedded air conditioner is merely an example, and the present invention is not limited to this.

FIG. 1 is a cross-sectional view showing a mounting state of a ceiling-suspended air conditioner 100 according to Embodiment 1 of the present invention. In the following description, the ceiling-suspended air conditioner 100 is simply referred to as “air conditioner 100”.
As shown in FIG. 1, the air conditioner 100 includes a main body 2 that performs air conditioning of the indoor space 1. In the main body 2, heat exchange is performed between the indoor blower 3 and the indoor air and the refrigerant. The indoor unit heat exchanger 4 is accommodated. A decorative panel 5 having a suction grill 5a and an outlet 5b arranged in parallel with each of the four sides is attached to the main body 2 below the main body 2. Further, on the side surface of the main body 2, there are provided four suspension fitting installation surfaces 10, and suspension fittings 11 each having a suspension fitting shape B are fixed to these suspension fitting installation surfaces 10.
On the other hand, four suspension bolts 12 are suspended from the ceiling 6, and the suspension fitting 11 is fastened to the suspension bolt 12 at an arbitrary position.

FIG. 2 is a perspective view showing a ceiling hanging type air conditioner mounting device according to Embodiment 1 of the present invention, and shows a state before the hanging bracket 11 of the hanging bracket shape B is fastened to the suspension bolt 12. is there.
As shown in FIG. 2, the suspension bolt fixing means, for example, an upper nut 13 a and an upper washer 14 a, a lower washer 14 b and a lower nut 13 b are attached to the suspension bolt 12 in advance. The lower washer 14b and the lower nut 13b are set on the suspension bolt 12 at a desired height.

  The hanging metal fitting 11 has a vertical portion 11a and a horizontal portion 11b bent in an inverted L shape. The vertical portion 11a is fixed to the side surface of the main body 2 with a bolt, and the hanging bolt 12 is passed through the horizontal portion 11b. It has a hole 11c and a guide slit 11d that introduces the suspension bolt 12 from the side perpendicular to one end of the elongated hole 11c.

  More specifically, the hanging bracket 11 having the hanging bracket shape B has an angle formed between the extending direction of the guide slit 11d and the hanging bracket installation surface 10 as described above. The guide slit 11d is different from the conventional one in that it is formed so as to abut on the end of the long hole 11c that is far from the suspension fitting installation surface 10 in an L shape.

  Further, a washer locking claw 11e bent downward is provided at the front end of the horizontal portion 11b to lock the lower washer 14b.

  Further, of the both side pieces 11f and 11g sandwiching the guide slit 11d of the horizontal portion 11b, the base side (vertical portion 11a and horizontal portion 11b) on the outer side on the side piece 11f side on the side far from the suspension fitting installation surface 10 In the vicinity of the corner portion formed by the step (b), a reinforcing portion 20 by bending or ribs is provided, and when a force is applied from the suspension bolt 12 to the suspension fitting 11, it is strong against the moment load applied to the suspension fitting 11. It has a simple structure.

  When attaching the suspension fitting 11 of the main body 2 to the suspension bolt 12, as shown in FIG. 2, the upper nut 13 a and the upper washer 14 a are arranged at an upper position so as not to obstruct the attachment of the suspension fitting 11. Then, the guide slit 11d of the suspension fitting 11 is inserted into the suspension bolt 12 from the side, and the suspension bolt 12 is passed through the elongated hole 11c. Then, after adjusting the horizontal position of the main body 2 along the long hole 11c, the hanging bracket 11 is sandwiched between the upper and lower two washers 14a and 14b, and further tightened and fixed with the nuts 13a and 13b. Thus, the main body 2 is attached to the suspension bolt 12 at a desired height.

FIG. 3 is a schematic diagram showing a positional relationship between a hanging metal fitting and a washer of the mounting device for a ceiling suspended air conditioner according to the first embodiment of the present invention.
As shown in FIG. 3, the ceiling-suspended air conditioner mounting device according to Embodiment 1 of the present invention has an end (L-shaped end) on the far side of the long hole 11 c from the suspension fitting installation surface 10. When the suspension bolt 12 is fixed to the corner end), a part of the edges of both side pieces 11f and 11g of the guide slit 11d (both edges of the guide slit) is applied in the area of the washers 14a and 14b. The formation position of the guide slit 11d is set. As a result, the force can be received by the entire suspension fitting 11 at a portion where the moment load applied to the suspension fitting 11 is maximized, and the strength of the suspension fitting 11 can be locally improved. Can be suppressed. For this reason, the strength required for the member can be lowered, and the overall thickness of the sheet metal can be reduced.

By the way, if the washers 14a and 14b sandwiching the hanging metal fitting 11 are only on one of the edges (both edges of the guide slit) of both side pieces 11f and 11g of the guide slit 11d, The force applied in the vertical direction) is received only on one side of both side pieces 11f and 11g of the guide slit 11d of the hanging bracket 11. For this reason, the strength of the hanger 11 is weakened.
On the other hand, it is necessary to shorten the length of the long hole 11c through which the suspension bolt 12 is passed so that the washers 14a and 14b are always applied to the edges of the side pieces 11f and 11g of the guide slit 11d (both edges of the guide slit). is there. For this reason, the freedom degree of arrangement | positioning of a suspension bolt falls and construction workability | operativity deteriorates.

  Therefore, when the suspension bolt 12 is fixed to the end portion of the elongated hole 11c on the side closer to the suspension fitting installation surface 10, that is, the end portion on which the moment load is reduced, the washer 14a, 14b Regardless of whether or not the edges of both side pieces 11f and 11g of the guide slit 11d (both side edges of the guide slit) are hooked from within the area (here, up to a position where one of the both side edges of the guide slit is removed). Thereby, in addition to the local strength improvement effect of the above-mentioned suspension metal fitting 11, the freedom degree of arrangement | positioning of a suspension bolt can be raised and construction workability | operativity can be improved.

Embodiment 2. FIG.
FIG. 4 is a schematic diagram showing the positional relationship between the hanging fitting and the washer of the mounting device for a ceiling suspension type air conditioner according to the second embodiment of the present invention. Is attached. In the description, reference is made to FIG.
As shown in FIG. 4, the ceiling-suspended air conditioner mounting device according to the second embodiment of the present invention has an end (L-shaped end) on the far side of the long hole 11 c from the suspension fitting installation surface 10. When the suspension bolt 12 is fixed to the corner end), within the area where the edges of both side pieces 11f, 11g of the guide slit 11d (both edges of the guide slit) are applied within the area of the washers 14a, 14b. The formation position of the guide slit 11d of the hanging metal fitting 11 is shifted toward the other end side of the long hole 11c. Other configurations are the same as those of the first embodiment.

  Also in the second embodiment, since the force is received by the both side edges of the guide slit 11d, that is, the entire suspension fitting 11 at the portion where the moment load applied to the suspension fitting 11 is maximized, the strength of the suspension fitting 11 is locally improved. And the deformation of the hanging metal fitting 11 can be suppressed. For this reason, the strength required for the member can be lowered, and the overall thickness of the sheet metal can be reduced.

  Further, the width of the side piece 11f on the side where the moment load of the guide slit 11d is increased can be increased by deviating the formation position of the guide slit 11d of the hanging bracket 11 toward the other end side of the elongated hole 11c. The strength of the hanging metal fitting 11 can be further improved.

  In each of the above-described embodiments, the elongated holes 11c are linearly described as an example. However, the present invention is not limited to this, and, for example, an arc-shaped elongated hole can be adopted. .

  DESCRIPTION OF SYMBOLS 1 Indoor space, 2 Main body, 3 Indoor blower, 4 Indoor unit heat exchanger, 5 Cosmetic panel, 5a Suction grill, 5b Outlet, 10 Hanging bracket installation surface, 11 Hanging bracket, 11a Vertical part, 11b Horizontal part, 11c Slot 11d guide slit, 11e washer locking claw, 11f, 11g side piece, 12 suspension bolt, 6 ceiling, 13a, 13b nut (suspending bracket fixing means), 14a, 14b washer (suspending bracket fixing means), 20 reinforcing part , 100 Air conditioner.

Claims (3)

A suspension fitting that has a long hole for passing a suspension bolt suspended from the ceiling and a guide slit that introduces the suspension bolt from the side into the elongated hole and is fixed to the suspension fitting installation surface of the air conditioner body. Prepared,
The long hole has a shape in which the distance from the suspension fitting installation surface to the fixing position of the suspension bolt varies depending on the fixing position of the suspension bolt,
The guide slit is provided in an area of a suspension fitting fixing means for securing the suspension bolt to the suspension fitting when the suspension bolt is fixed to an end of the elongated hole on a side far from the suspension fitting installation surface. The ceiling-suspended air conditioner mounting device is characterized in that a part of both side edges of the guide slit is hung on the ceiling.   The elongated hole extends from the area of the hanging bracket fixing means to the position where one of both side edges of the guide slit is removed when the hanging bolt is fixed to the end portion on the side closer to the hanging bracket installation surface. The ceiling-suspended air conditioner mounting device according to claim 1, wherein the ceiling-suspended air conditioner mounting device is extended.   The ceiling according to claim 1 or 2, wherein a reinforcing part by bending or a rib is provided on a side piece on a side far from the mounting surface of the hanging bracket among both side pieces sandwiching the guide slit. Mounting device for hanging air conditioner.

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