JP2001263717A - Device for changing air direction of ceiling-embedded type air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device for changing the wind direction of a ceiling- embedded type air-conditioner in which a bearing part is provided for securely pivot a rotation shaft of an air-direction changing board and the like. SOLUTION: A bearing part for pivoting a rotation shaft of an air-direction changing board and/or a transmission shaft comprises a bearing 18 for receiving the rotation shaft and/or the transmission shaft. A mounting means for mounting the bearing to a panel frame 7 is composed of a first locking part and a second locking part 7b. The first locking part comprises a first locking claw 18a and a locking hole 7a for sliding the bearing in the same direction as the rotation shaft and/or the transmission shaft to lock it. The second locking part 7b comprises a locking part 18b and a second locking claw 7b for locking the bearing which has been locked by the first locking part so as not to allow it to slide to the direction for its release.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wind direction changing device for an air conditioner embedded in a ceiling, and more particularly, to a bearing portion capable of firmly supporting a rotating shaft of a wind direction changing plate. Regarding the structure.

[0002]

2. Description of the Related Art Conventionally, a wind direction changing device for a ceiling-mounted type air conditioner is shown in FIGS. 1, 2, 8A and 8B.
(B), a case body 1 having an open bottom surface and suspended and fixed in a ceiling, a blower including a blower fan 2 and a fan motor 3 provided in the center of the case body 1, A bell mouth 4 provided on the lower suction side of the blower and a heat exchanger 5 provided therearound; a drain pan 6 provided below the heat exchanger 5; and an opening on the bottom side of the case body 1 A panel frame 7 formed with a plurality of blow-out portions continuously attached to a portion and rotatably supporting a wind direction changing plate 9, and a suction port communicating with the bell mouth 4 are provided around the suction port. An inlet grille 10 having a plurality of outlets 8 communicating with the outlets, and a decorative frame 11 attached to the outside of the panel frame 7 and attached to the ceiling surface B, and are adjacent at substantially right angles. Ends of both rotation shafts 9a of the wind direction change plate 9 and both rotations Both ends of a transmission shaft 13 that intersects at approximately 45 ° with 9a are connected by universal joints 12, respectively, and the rotating shaft 9a and / or the transmission shaft 13 is supported by a bearing portion 17, and the wind direction changing plate 9 is It was linked by driving with a drive motor.

However, when a shock or vibration is applied during transportation, for example, the locking claw 18a 'of the bearing 18' constituting the bearing 17 is disengaged from the locking portion provided on the panel frame 7 or the like. The rotation shaft 9a and / or the transmission shaft 13
Therefore, there is a problem in that the wind direction changing plate 9 cannot be tilted accurately because it is not possible to pivot.

[0004]

SUMMARY OF THE INVENTION In view of the above problems, in the present invention, the wind direction of an embedded ceiling type air conditioner having a bearing portion capable of firmly supporting a rotating shaft of a wind direction changing plate is supported. It is an object to provide a change device.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides an air outlet having tiltable wind direction change plates on four sides of a panel frame provided on the lower surface of a case body embedded in a ceiling surface. The two rotation shaft ends of the wind direction change plate provided substantially adjacent to each other at the right angle, and both ends of a transmission shaft intersecting the both rotation shafts at approximately 45 ° are respectively connected by universal joints, and driven by a drive motor. In the wind direction changing device of an embedded ceiling air conditioner in which the wind direction changing plate is interlocked, a rotating shaft of the wind direction changing plate, or a bearing portion that supports the transmission shaft, these rotating shafts, Or a bearing that receives the transmission shaft,
Attachment means for attaching the bearing to the panel frame is engaged by a first locking portion that slides and locks the bearing in the same direction as the rotation shaft and / or the transmission shaft. A second locking portion for locking the stopped bearing so as not to slide in the detaching direction.

The first locking portion has a pair of first locking claws provided on the bearing and a pair of locking holes provided on the panel frame corresponding to the first locking claw. It consists of the following.

[0007] Further, the first locking claw is configured such that its tip is inclined so as to have a small clearance with respect to the peripheral surface of the locking hole.

The second locking portion is provided on at least one of the first locking claws, and a second engaging member formed continuously on the panel frame corresponding to the locking portion. It consists of a pawl.

Further, the second locking claw and the locking portion are provided with an inclined portion which slides during locking to elastically deform the second locking claw and / or the locking portion. I have.

Further, an arm for positioning the bearing so that the bearing does not slide in the separating direction is continuously formed on the wind direction changing plate.

Further, the arm is configured such that the wind direction changing plate positions the bearing at a position where the air outlet is closed.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the present invention will be described below as examples based on the attached drawings. FIG. 1 is a cross-sectional view of a ceiling-mounted air conditioner equipped with a wind direction changing device according to a conventional example and the present invention, and FIG. 2 is a ceiling-mounted air conditioner equipped with a wind direction changing device according to a conventional example and the present invention. FIG. 3 is an enlarged view of a part a shown in FIG.
FIG. 4 is an enlarged view of a portion b shown in FIG. 2, and FIG.
4A is an explanatory view showing a cross section, FIG. 6A is an exploded cross sectional view showing a first example, FIG. 6B is an assembly cross sectional view showing a first example, FIG. FIG. 7 is an explanatory view showing a BB section, FIG. 7A is an assembled sectional view showing a second example by an AA section, and FIG. 7B is an assembled sectional view showing a BB section.
FIG. 5 is a view on arrow C shown in FIG. 4.

In FIG. 1, reference numeral 1 denotes a case body whose bottom is opened and is suspended and fixed in a ceiling, and 2 and 3 are provided at the center of the inside of the case body 1 and constitute a blower and a fan motor. Is a bell mouth provided on the lower suction side of the blower, 5 is a heat exchanger disposed around the blower, 6 is a drain pan provided below the heat exchanger 5, and 7 is the case body 1. A panel frame 10 is attached to the opening on the bottom side of the panel, and has a plurality of blow-out sections continuously formed so as to tiltably support the wind direction changing plate 9. A panel 10 has a suction port communicating with the bell mouth 4. A suction grill having a plurality of outlets 8 communicating with the outlet at the periphery of the mouth, 11 is a decorative frame attached to the outside of the panel frame 7 and attached to the ceiling surface B, and 12 is a wind direction changer. Rotating axis of plate 9
A universal joint 14 comprising a yoke portion 12a and a cross portion 12b respectively connecting both ends of a transmission shaft 13 intersecting at approximately 45 ° with 9a, a drive motor 14 for driving a rotating shaft 9a of the wind direction changing plate 9,
Is a drive gear connected to the drive shaft 16 of the drive motor 14.

Next, a wind direction changing device for a ceiling-embedded air conditioner having the above-described basic structure and having a bearing portion 17 capable of firmly supporting the rotating shaft 9a and the like of the wind direction changing plate 9 is described. The structure will be described below. A bearing 17 for supporting the rotating shaft 9a and / or the transmission shaft 13 of the wind direction changing plate 9 comprises a bearing 18 for receiving the rotating shaft 9a and / or the transmission shaft 13. A mounting means to be attached to the first and second engagement portions is provided by a first engagement portion, which will be described later, which slides and locks the bearing 18 in the same direction as the rotation shaft 9a and / or the transmission shaft 13, and the first engagement portion. A second locking portion described below that locks the stopped bearing 18 so as not to slide in the disengagement direction, so that even if impact or vibration is applied at the time of transportation, for example, the above description is made. As in the prior art described above, the rotating shaft 9a and the like of the wind direction changing plate 9 can be accurately and firmly supported so as not to be detached from the bearing portion 17. 9 can be tilted accurately.

The panel frame 7 and the bearing 18 are made of a synthetic resin which is easy to mold.
In addition to being advantageous in terms of cost, in particular, by molding the bearing 18 with a self-lubricating synthetic resin such as polyacetal, the wind direction change plate 9 can be tilted more smoothly.

Further, the bearing 18 is connected to the rotating shaft 9a and
Alternatively, as shown in FIGS. 5 (A) and 5 (B), a first locking portion which slides and locks in the same direction as the transmission shaft 13 has a pair of first engaging members provided on the bearing 18. Stop claws 18a
And a pair of locking holes 7a provided in the panel frame 7 corresponding to the first locking claws 18a, whereby the pair of first locking claws 18a slide. By locking the pair of locking holes 7a in this manner, even if, for example, a shock or vibration is applied in the vertical direction of the case body 1 during transportation, a strong locking state that does not come off is achieved. As a result, the rotating shaft 9a and the like of the wind direction changing plate 9 can be accurately supported.

Incidentally, the pair of first locking claws 18a are arranged as shown in FIG.
The pair of first locking claws 18a are slid by tilting their tips so as to have a small clearance with respect to the peripheral surfaces of the pair of locking holes 7a as shown in FIG. When this is done, it can be smoothly and accurately locked to the periphery of the pair of locking holes 7a.

Next, the second locking portion for locking the bearing 18 locked by the first locking portion so as not to slide in the detaching direction will be described. As shown in FIGS. 5 (A) and 5 (B), the second locking portion includes a locking portion 18b provided on at least one of the first locking claws 18a and a locking portion 18b. Correspondingly, a second locking claw 7b is formed continuously on the panel frame 7, thereby locking the second locking claw 7b to the locking portion 18b. For example, the bearing 18 does not slide even if impact or vibration is applied in the horizontal direction of the case body 1 during transportation, and the bearing 18 more accurately supports the rotating shaft 9a of the wind direction changing plate 9 and the like. become able to.

The second locking claw 7b and the locking portion
As shown in FIGS. 5A and 5B, the second locking claw 7b is provided with an inclined portion b which slides at the time of locking to elastically deform the second locking claw 7b and / or the locking portion 18b. By doing
When the second locking claw 7b is locked to the locking portion 18b, the inclined portions b can be easily and accurately locked while sliding each other.

Further, as shown in FIGS. 6A and 7, the bearing 18 is moved to the wind direction changing plate 9 so that the bearing 18 is not slid in the separating direction. Since the positioning arm 9b is formed continuously, when a horizontal shock or vibration is applied to the case body 1, the bearing 18 does not slide by the second locking portion. Since the bearing 18 can be positioned by the arm 9b so as not to slide, a safety structure can be provided in which the bearing 18 can be double-fixed against horizontal shock or vibration.

With the above configuration, FIGS. 1 to 4 and FIG.
(A) and FIG. 5 (B), FIG. 6 (A) and FIG.
(B), the bearing 17 supporting the rotation shaft 9a and / or the transmission shaft 13 of the wind direction change plate 9 is moved from the bearing 18 receiving the rotation shaft 9a and / or the transmission shaft 13. Wherein the mounting means for attaching the bearing 18 to the panel frame 7 slides and locks the bearing 18 in the same direction as the rotating shaft 9a and / or the transmission shaft 13. Since the bearing 18 is locked by the first locking portion and the second locking portion that locks so as not to slide in the disengaging direction, for example, even if shock or vibration is applied during transportation, As in the prior art described above, the rotating shaft 9a and the like of the wind direction changing plate 9 can be accurately and firmly supported so as not to be detached from the bearing portion 17. A ceiling that allows the wind direction change plate 9 to be tilted accurately A wind direction adjusting device for the embedded air conditioner.

[0022]

As described above, according to the present invention,
A wind direction changing device for a ceiling-embedded air conditioner having a bearing portion capable of firmly supporting a rotating shaft and the like of a wind direction changing plate.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of an embedded ceiling air conditioner provided with a conventional example and a wind direction changing device according to the present invention.

FIG. 2 is a perspective plan view of a ceiling-embedded air conditioner provided with a wind direction changing device according to a conventional example and the present invention.

FIG. 3 is an enlarged view of a part a shown in FIG. 2;

FIG. 4 is an enlarged view of a portion b shown in FIG.

5A and 5B are explanatory views showing an AA cross section of FIG. 4, wherein FIG. 5A is an exploded cross sectional view showing a first example, and FIG. 5B is an assembled cross sectional view showing a first example.

6A and 6B are explanatory views showing an AA section and a BB section of FIG. 4, wherein FIG. 6A is an assembly sectional view showing a second example by an AA section, and FIG. It is an assembly sectional view showing a section.

FIG. 7 is a view as viewed in the direction of the arrow C shown in FIG. 4;

FIG. 8 is an explanatory view of a ceiling-embedded air conditioner provided with a wind direction changing device according to a conventional example, wherein (A) is a perspective plan view of a main part, and (B) is a DD cross section shown in (A). FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Case main body 2 Blower fan 3 Fan motor 4 Bell mouth 5 Heat exchanger 6 Drain pan 7 Panel frame 7a Locking hole 7b Second locking claw 8 Air outlet 9 Wind direction change plate 9a Rotating shaft 9b Arm 10 Suction grill 11 Makeup frame 12 Universal joint 12a Yoke section 12b Cross section 13 Transmission shaft 14 Drive motor 15 Drive gear 16 Drive shaft 17 Bearing section 18 Bearing 18a First locking claw 18b Lock section A Ceiling-mounted air conditioner body B Ceiling surface

Claims (7)

[Claims] An air outlet provided with a tiltable wind direction changing plate is provided on each of four sides of a panel frame provided on a lower surface of a case body embedded in a ceiling surface, and both sides of the wind direction changing plate adjacent at substantially right angles are rotated. A ceiling-embedded air conditioner in which the shaft end and both ends of a transmission shaft that intersects the both rotating shafts at approximately 45 ° are connected by universal joints, and are driven by a drive motor so that the wind direction change plates are interlocked. In a wind direction changing device for a machine, a rotating shaft of the wind direction changing plate and / or a bearing portion for supporting the transmission shaft comprises a bearing for receiving the rotating shaft and / or the transmission shaft. Mounting means for attaching the bearing to the rotating shaft and / or the transmission shaft to slide and lock the bearing in the same direction; and the bearing locked by the first locking portion. Lock the lock so that it does not slide in the release direction. A wind direction changing device for an embedded ceiling air conditioner, comprising: a double locking portion. 2. A pair of first locking claws provided on the bearing, and a pair of locking holes provided on the panel frame corresponding to the first locking claws. The wind direction changing device for an embedded ceiling air conditioner according to claim 1, wherein the wind direction changing device comprises: 3. The ceiling-embedded air according to claim 2, wherein the first locking claw is inclined so that a tip thereof has a small clearance with respect to a peripheral surface of the locking hole. Harmonizer wind direction changing device. 4. The second engaging portion, wherein the second engaging portion is provided on at least one of the first engaging claws, and a second engaging member continuously formed on the panel frame corresponding to the engaging portion. The wind direction changing device for a ceiling-embedded air conditioner according to claim 1, wherein the wind direction changing device is constituted by a stop claw. 5. An inclined portion which slides at the time of locking to elastically deform the second locking claw and / or the locking portion, the second locking claw and the locking portion being provided. The wind direction changing device for an embedded ceiling air conditioner according to claim 4. 6. The air conditioner according to claim 1, wherein an arm for positioning the bearing so that the bearing does not slide in the detaching direction is continuously formed on the wind direction changing plate. Wind direction changing device. 7. The buried ceiling according to claim 1, wherein the arm is formed such that the wind direction changing plate positions the bearing at a position where the air outlet is closed. Direction change device for plug-in type air conditioners.