JPH0625769Y2 - Mounting device for ventilation grill of air conditioner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a ventilation grill mounting device provided at the bottom of a body of a ceiling-mounted air conditioner or the like.

(B) Conventional technology Generally, in a ceiling-mounted air conditioner, the bottom surface of the airframe and the ventilation grill that covers the ventilation openings on the bottom surface are connected via a hinge, and this ventilation hinge is used as a fulcrum. It was designed to be able to rotate to the bottom of the machine. Then, by rotating the ventilation grille, the ventilation opening of the machine body is opened so that service inspection inside the machine body and removal of the air filter inside the machine body can be performed. As a mounting device for the ventilation grille having such a structure, the actual opening is 5
There is an 8-69710 publication.

In this publication, a notch hole and a through hole are provided at the edge of the ventilation opening on the bottom surface of the machine body, while a hinge is provided with a guide piece that is slid into the notch hole and a positioning piece that fits into the through hole.
This hinge was designed to be attached to the edge of the air vent in the airframe. Then, the rotating shaft of the ventilation grill is placed on the U-shaped piece of the hinge.

(C) Problems to be solved by the invention In such a structure, since the notch hole is provided at the edge of the vent hole of the machine body, the strength of the vent hole itself is lowered or the ventilation grill is rotated. At the same time, there was a risk that the rotating shaft of the ventilation grill would move and come off the U-shaped piece of the hinge, causing the ventilation grill to drop.

The present invention is intended to solve the above problems.

(D) Means for Solving the ProblemTo achieve this object, the present invention provides a hinge that connects the airframe and the ventilation grille with a support that is fitted from one direction to the edge of the ventilation opening of the airframe, and this one direction. The elastic force acting in the intersecting direction forms the fixed portion attached to the ventilation grill.

(E) Action A hinge support piece is fitted from one direction to the edge of the ventilation hole of the machine body to prevent the strength of this edge from decreasing, and when the ventilation grill is rotated, the fixed part moves away from the ventilation grill. No force is applied.

(F) Embodiment In FIGS. 1 and 2, 1 is a body of an air conditioner suspended from the ceiling in the room, 2 is a ventilation grill attached to a ventilation hole 22 on the bottom of the body 1, and 3 is this. The four centrifugal blowers fixed in the body of the machine are motors 4 for driving the centrifugal blowers, and the four blowers 3 are connected by one shaft. Reference numeral 5 is a partition plate provided with an opening 6 connected to the discharge port of each blower. 7 is an indoor heat exchanger, 8 is a drain pan provided below the indoor heat exchanger 7, and 9 is a drain pan.
Is a blowout port provided on the front surface of the machine body 1 in which the wind direction changing blade 10 is arranged. The indoor air flows as shown by the solid line arrow in FIG. 2 by the rotation of the blower 3.

Here, the ventilation grill 2 is attached to the rear edge 12 of the flange of the machine body 1 by four hinges 11 having the same shape.

FIG. 3 shows the relationship between the machine body 1, the hinge 11, and the ventilation grille 2, 13 is a mounting hole formed in the flange of the rear edge 12 of the machine body, and 14 is one direction (rear direction) in the rear edge 12. It is a U-shaped support tool that is inserted from the direction (which intersects with the edge), and a slit 15 is provided in the bent portion. Thereby, when the support tool 14 is inserted into the rear edge 12, the opening of the U-shaped support tool 14 is easily expanded. Reference numeral 16 is a hemispherical projection, and when the support tool 14 is inserted into the rear edge 12, the projection 16 is fitted into the mounting hole 13 of the rear edge 12,
The hinge 11 is fixed to the machine body 1. Reference numeral 17 denotes a pair of fixing portions provided on the left and right ends of the support tool 14, and projections 18 are formed on the outer sides thereof. Reference numeral 19 denotes a pair of locking pieces provided at one end of the ventilation grille 2, and a locking hole 20 is formed therein. Here, the distance between the pair of locking pieces 19 is substantially equal to the distance between the pair of fixing portions 17.

Therefore, when the pair of fixing portions 17 are fitted into the locking holes 20 of the locking pieces 19, respectively, the direction intersecting with the one direction (the rear edge 12).
The pair of fixing portions 17 are pushed in a direction (along the arrow), the elastic force of the fixing portions 17 reduces the distance between the fixing portions 17, and the projections 18 of the fixing portions 17 are fitted into the locking holes 20.

In this way, the direction of the elastic force acting on the pair of fixing portions 17 (solid arrow) is the rotation direction of the ventilation grill 2 (the protrusion 18).
Crosses with the fulcrum as the fulcrum).
There is almost no possibility that the protrusion 18 of the fixed portion 17 will come off the locking hole 20 of the ventilation grill 2 when the ventilation grill 2 rotates.

FIG. 4 shows a state in which the machine body 1 and the hinge 11 are connected, and the rear edge 12 is bent for reinforcement. Further, there is a slight gap 2 between the rear edge 12 and the U-shaped support tool 14.
However, since the gap 21 is lower than the height of the protrusion 16, the hinge 11 is not likely to come off from the machine body 1. Since the gap 21 is formed in this manner, the trailing edge 12
This is because a flange (not shown) having a thickness larger than the thickness of the flange forming the above can be inserted into the support tool 14, and the hinge 11 is inserted into the flange having such a large thickness. The gap 21 does not occur at times.

Incidentally, polypropylene is used as the material of the hinge 11 so that sufficient elastic force can be maintained.

(G) Effect of the invention As described above, according to the present invention, the hinge is fitted on the edge of the ventilation opening of the machine body, and the processing such as the notch hole is not performed on this edge as much as possible. It is possible to suppress a decrease in the strength of the rim and prevent the operation of attaching and removing the ventilation grille from being hindered.

Further, the fixing portion that connects the hinge and the ventilation grille is designed so that its elastic force acts in a direction intersecting with the direction in which the hinge supporter is attached to the machine body, that is, in the direction intersecting with the rotation direction of the ventilation grille. The ventilation grille is less likely to come off the hinge, and it is possible to prevent the ventilation grille from falling during operation.

[Brief description of drawings]

1 shows a preferred embodiment of the present invention, FIG. 1 is a perspective view showing the internal structure of a ceiling-mounted air conditioner, FIG. 2 is a longitudinal sectional view of the same, and FIG. 3 is an enlarged perspective view of the main part of the same. FIG. 4 is a cross-sectional view of a main part of the hinge. 1 ... Airframe, 2 ... Ventilation grille, 11 ... Hinge, 14
…… Supporting device, 17 …… Fixing part, 22 …… Ventilation port.

Claims (1)

[Scope of utility model registration request] 1. A ventilation grill mounting device for an air conditioner, wherein a hinge is provided on a ventilation grill attached to a ventilation opening of an airframe, and the ventilation grill is rotated around the hinge as a fulcrum. An attachment device for a ventilation grille of an air conditioner, characterized in that: a support member that is fitted into the edge of the ventilation grille from one direction and a fixing portion that is attached to the ventilation grille by an elastic force that acts in a direction intersecting the one direction.