JP3051892B2 - Ceiling-mounted air conditioner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting structure for a decorative grill of a ceiling-mounted air conditioner having a decorative panel installed on a ceiling.

[0002]

2. Description of the Related Art In general, there is a known ceiling-mounted air conditioner in which a decorative grill is provided on a decorative panel installed on a ceiling, and a filter is provided on the decorative grill (Japanese Patent Laid-Open No. 2-2339).
No. 20). This type has an advantage that the filter can be removed by removing the decorative grille from the decorative panel, so that the operation of attaching and detaching the filter when cleaning the filter is simplified.

[0003]

However, in the ceiling-mounted type air conditioner, the decorative panel and the decorative grill are naturally installed on the ceiling. Therefore, even if the attachment and detachment of the filter is simplified, there is a problem that the filter is not replaced very often, and a situation occurs in which the operation is continued without sufficiently exhibiting the performance of the air conditioner.

Accordingly, an object of the present invention is to solve the above-mentioned problems of the prior art, and to provide a ceiling-mounted air conditioner in which a filter provided on a decoration grill can be easily replaced in a low place. To provide.

[0005]

[0006]

According to the first aspect of the present invention,
A decorative panel, a decorative grill provided on the decorative panel, and four cables having one ends attached to four corners of the decorative grill and supporting the decorative grill so that the decorative grill can be pulled down;
It is provided with four winding means including a winding roll for winding each of the four cables, and four decorative grill locking means for fixing the decorative grill to the decorative panel, and the decorative grill is artificially lowered. A pull-down string is provided as possible, and when the pull-down string is pulled down, the locks of the four decorative grille locking means are first released, and the decorative grille descends after the release.

[0007]

[0008]

According to a second aspect of the present invention, the winding means according to the first aspect includes a ratchet mechanism and the winding roll starts winding the cable when the decorative grill is pulled down to the lowest position. It is characterized by the following.

[0010]

According to the first and second aspects of the present invention, when the decorative grill can be artificially lowered, when the air cleaning filter is maintained, the filter can be lowered to a low place for maintenance. it can. According to this, not only can the work be simplified, but also the safety of the work can be improved as compared with the conventional case of working at a high place.

In addition, since the decorative grille can be artificially lowered by using a simple structure without using an electric motor or the like, the cost can be reduced and the number of troubles can be reduced. Since the controller is not required, the control is not required, and the filter can be maintained at any time only by artificially lowering the decorative grill.

[0012]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 3 is a longitudinal sectional view of the ceiling-mounted air conditioner, and reference numeral 50 indicates the air conditioner. The air conditioner 50 has a unit body 2 made of sheet metal housed in a ceiling interior 1, an inlet 3 in the center, and outlets 4 on four sides of the outer periphery.
And a decorative panel 9 provided on the ceiling surface 6 so as to close the ceiling hole 5 and a decorative grille 9 having an air inlet 8 in the center.

Reference numeral 10 denotes a blower including a turbo fan 11 and a fan motor 13 mounted on a top plate 12, reference numeral 14 denotes a nozzle port for guiding room air from the intake port 8 to the turbo fan 11, and reference numeral 15 denotes an inner rising portion 15a. And an outer rising portion 15b, and a drain pan formed of styrene foam in an angular ring shape. A plate fin type heat exchanger 16 is annularly arranged on the discharge side of the turbo fan 11 so as to surround the fan. is there. Reference numeral 17 denotes a heat insulating material wound around the peripheral surface of the unit body 2, reference numeral 21 denotes a baffle for guiding the air exchanged by the heat exchanger 16 to the outlet 4,
Is a suspending bolt for suspending the unit body 2 from the ceiling beam with a suspending tool, and 24 is a filter attached to the downstream side of the decorative grille 9.

Referring to FIG. 1, the decorative grille 9 is supported by four cables 31 so that it can be pulled down artificially. One end 31 a of the cable 31 is connected to a corner of the decorative grille 9, and the other end 31 b of the cable 31 is wound around a winding roll 35 constituting the winding means 33. The take-up means (hereinafter referred to as “take-up roll member”) 33 includes a support piece 32 fixed to the inner surface 7 a of the decorative panel 7, a take-up roll 35 having a built-in ratchet mechanism (not shown), It comprises a base roll 37 and a leaf spring 39 having both ends attached to both rolls 37 and wound around the base roll.

The leaf spring 39 is formed so as to be wound around a basic roll. Therefore, the cable 31 (described later)
When the take-up roll 35 rotates counterclockwise due to the pulling, the leaf spring 39 is taken up while receiving a reaction force from the take-up roll 35.

The operation of the take-up roll member 33 will be described. When the decorative grill 9 is pulled down by means to be described later, four cables 31 of the take-up roll 35 are fed out at the same time, and the decorative grill 9 descends while maintaining a horizontal state as shown in FIG. When the take-up roll 35 is counted up to the maximum number of revolutions, the decorative grill 9 is pulled down to almost the lowest position, and the leaf spring 39 of the basic roll 37 is moved.
Are all taken up by the take-up roll 37, the ratchet mechanism is operated, and the decorative grille 9 is fixed. On the other hand, when the decoration grill 9 is slightly moved downward in this state, the ratchet mechanism is released (operated), whereby the take-up roll is rotated clockwise by the force of the leaf spring 39 trying to wind the basic roll. Then, winding of the cable 31 is started, and four winding rolls 35 are wound simultaneously. If the four cables 31 are wound at the same time, the decorative grill 9 rises while maintaining the horizontal state.

The raised decorative grille 9 is fixed to the decorative panel 7 via the decorative grill lock means 41. The decorative grill lock means 41 is configured by hooking a grill lock claw 45 on a pin 43 fixed to the inner surface 7 a of the decorative panel 7. The grill locking claws 45 are rotatably provided at four corners of the decorative grille 9 respectively, and a pair of grill locking claws 4 opposed in the longitudinal direction are provided.
The operation bar 47 is connected by the operation rod 47. Both operation rods 47
Is always urged in the direction in which the pawl 45 stands, that is, in the direction in which the lock is applied. The two operating rods 47 are connected by a horizontal string 49, and a pull-down string 51 is connected to the center of the horizontal string 49.
3 hangs down.

The lowering string 51 is an artificially lowering string. When the lowering string 51 is lowered, the horizontal string 49 is pulled, and both operation rods 47 rotate in the direction of the arrow against the above-mentioned urging force.
The grill lock claws 45 rotate in the directions of the arrows. When the grill locking claw 45 rotates in the direction of the arrow, the fixing between the decorative panel 7 and the decorative grille 9 is released, and when the pull-down string 51 is further pulled down, as described above, the cable 31 of the take-up roll 35 is turned on. Are simultaneously fed out, and the decorative grille 9 descends while maintaining the horizontal state. In this case, the decorative grille 9 is lowered by the total of the pulling-down force and the load (the weight of the decorative grille 9 and the filter 24) while being urged upward by the spring force of the leaf spring 39 wound on the basic roll 37. So that both forces are balanced, the descent is stable, and it is lowered quietly.

In the process of lowering the decorative grill 9, the ratchet mechanism of the take-up roll 35 always operates.
The decoration grill 9 can be temporarily stopped at any position. Although not shown in FIG. 1, an air cleaning filter 24 (FIG. 3) is mounted on the upper part of the decoration grill 9, so that the decoration grill 9 is pulled down from the ceiling surface 6 as shown in FIG. 2. When the operation is temporarily stopped halfway, operations such as replacement and cleaning of the filter 24 can be performed at a low place.

Therefore, as compared with the conventional operation at a high place, not only the operation is simplified, but also the safety of the operation can be improved.

Further, since the decorative grille 9 can be artificially lowered by using a simple structure without using an electric motor or the like, the cost is low and the number of failures is small. Further, since no electric motor or the like is used, a remote controller becomes unnecessary, so that management of the remote controller becomes unnecessary, and maintenance of the filter 24 can be performed at any time only by pulling down the pulling string 51.

Although the present invention has been described based on one embodiment, the present invention is not limited to this. For example, it is obvious that the winding means 33 and the decorative grill lock means 41 are not limited to the above-described mechanism.

As another embodiment, a pull-down bar (not shown) that can artificially pull down the decorative grille 9 may be used instead of the pull-down cord 51. However, in this case, a hook for hooking on the decorative grill 9 is provided at the tip of the pull-down bar, and when the hook is hooked on the decorative grill 9, the decorative grill lock means 4 is used.
It is necessary to unlock 1.

It goes without saying that the mechanism for unlocking the decorative grille lock means 41 can be further modified in various ways.

[0025]

As described above, according to the first and second aspects of the present invention, four cables each having one end attached to each of the four corners of the grill and supporting the decorative grill so as to be pulled down,
It is provided with four winding means including a winding roll for winding each of the four cables, and four decorative grill locking means for fixing the decorative grill to the decorative panel, and the decorative grill is artificially lowered. When a pull cord is provided, the locks of the four decorative grille lock means are unlocked when the pull cord is lowered, and the decorative grill is lowered after release. Therefore, the decorative grill can be lowered artificially. When the air cleaning filter is to be maintained, it can be lowered to a low place before maintenance. Therefore, as compared with the conventional case of working at a high place, the work can be simplified and the safety of the work can be improved.

Further, since the decorative grill can be artificially lowered without using an electric motor or the like with a simple structure, the cost is low and the number of failures is small. Furthermore,
Since a motor or the like is not used, for example, a remote controller is not required, so that management thereof is not required. Therefore, the filter can be maintained at any time only by artificially lowering the decorative grill.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of an embedded ceiling air conditioner according to the present invention.

FIG. 2 is a perspective view showing a state when the decorative grill is pulled down.

FIG. 3 is a vertical sectional view of the ceiling-mounted air conditioner.

[Explanation of symbols]

 7 decorative panel 9 decorative grille 24 filter 31 cable 33 take-up roll means 35 take-up roll 37 basic roll 39 leaf spring 41 decorative grill lock means 43 pin 45 grill lock claw 51 pull down string

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Masazumi Makino 2-5-5 Keihanhondori, Moriguchi City, Osaka Prefecture Inside Sanyo Electric Co., Ltd. (72) Inventor Kazuo Abe 2-5-5 Keihanhondori, Moriguchi City, Osaka Prefecture No. 5 Sanyo Electric Co., Ltd. (72) Inventor Kazuhiro Hinata 2-5-5 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (56) References JP-A-6-323565 (JP, A) JP-A-6-323565 Hei 8-61693 (JP, A) Japanese Utility Model Hei 6-32929 (JP, U) Japanese Utility Model Showa 60-65529 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) F24F 1 / 00 401

Claims (2)

(57) [Claims] 1. A decorative panel, a decorative grill provided on the decorative panel, and one end attached to each of four corners of the decorative grill .
Vignetting and four <br/> cables supporting the decorative grille to be lowered, and four winding means comprising a take-up roll for taking the four cables each wound, the said ornament grille decorative Four decorative grille lock means for fixing to the panel, and a pull-down string is provided so that the decorative grille can be artificially lowered. When the pull-down string is pulled down, first, the four decorative grille lock means are provided.
Release both locks, and then release the decorative grille
A ceiling-mounted air conditioner characterized by having a configuration that performs 2. The winding means includes a ratchet mechanism, and when the decorative grill is lowered to a lowermost position,
The ceiling embedded type air conditioner according to claim 1, wherein the winding roll starts winding the cable.