JPH06341702A - Air conditioner - Google Patents

Abstract

PURPOSE:To prevent a connection pin of an universal joint from falling down even in the case where an external force is added to a wind direction changing louver by setting a stopper in addition which limits a vibration width of the wind direction changing louver at a connection section by the universal joint of the wind direction changing louver. CONSTITUTION:In an air conditioner, many power transmission shafts (a-d) are connected to so many connection bars 4(a-d) by universal joints 9, respectively. And, to each power transmission shaft 5, each wind changing louver 3(a-d) is mounted individually. By the way, to each power transmission shaft 5 and each louver fixing bushes 6(a-d), a shaft side stopper 7 and a bush side stopper 10 are set in addition, respectively. In short, respective stoppers 7, 10 are designed to a vibration width of each wind direction changing louver 3 accompaniment, and each wind direction changing louver 3 is regulated so that it does not vibrate more than it needs. By this, even in the case where an external force is added to each wind changing louver 3, a connection pin 8 of the universal joint 9 can be prevented from falling down.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a louver swinging mechanism for an air conditioner having a plurality of air outlets and provided with air direction switching louvers at the air outlets.

[0002]

2. Description of the Related Art In a conventional apparatus, a single electric motor drives a plurality of louvers as disclosed in Japanese Utility Model Laid-Open No. 60-178742.

[0003]

In the above-mentioned prior art, since a mechanism for preventing the connecting portion from dropping by a universal joint is not provided for each of the plurality of wind direction switching louvers, an external force is applied to a specific wind direction switching louver. The connection part of the universal joint of the wind direction switching louver could fall off, causing malfunctions such as malfunction of the wind direction switching louver due to power transmission failure, and abnormal noise due to rubbing from the connecting portion of the universal joint. .

SUMMARY OF THE INVENTION An object of the present invention is to provide a simple mechanism capable of preventing a connecting portion of a plurality of wind direction switching louvers from being connected by a universal joint, and preventing a malfunction associated therewith.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a shaft portion of a wind direction switching louver and a portion for holding the shaft, which limits the swing width of a connecting portion of a universal joint of the wind direction switching louver. A preventive stopper is provided.

[0006]

The driving shafts are connected by universal joints and reciprocate according to the movement of the electric motor.

The air flow direction switching louver limits the operating range of the air flow direction switching louver by means of the driven shaft and the stopper for preventing the air flow direction switching louver provided at the portion holding the shaft. As a result, when an external force is applied to a specific wind direction switching louver, it operates in the same range as other wind direction switching louvers, so that it is possible to prevent the occurrence of problems due to the disconnection of the connecting portion due to the universal joint due to the difference in the operating range. be able to.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 is a drive mechanism diagram in the case where four air outlets are provided and four wind direction switching louvers are interlocked and moved. Four power transmission shafts 5a to 5d and a connecting rod 4a
.About.c are connected by six universal joints 9, and a power transmission shaft 2 and a drive motor 1 are attached. When the drive motor 1 reciprocally rotates, this movement is transmitted to the connecting rod 4a via the power transmission shaft 2, and further the four power transmission shafts 5a to 5d are reciprocally rotated via the universal joint 9. Each of the four power transmission shafts 5a to 5d has a wind direction switching louver 3a.
~ D are attached.

As shown in FIG. 2, the power transmission shaft 5a
To d and the louver fixing bush are provided with a shaft side stopper 7 and a bush side stopper 10, respectively, to limit the movement of the wind direction switching louver.

The stopper is set in accordance with the regular swing width of the wind direction switching louver, and is limited so that the wind direction switching louver does not swing more than necessary. Also, even if the adjacent wind direction switching louvers are moved by applying external force to the lower end on the one side and the upper end on the other side, the swing width is set so that the connecting part does not fall off due to the elasticity of the connecting part and the clearance of the shaft part. There is.

As a result, the specific wind direction switching louvers 3a.about.
When an external force is applied to d, the connecting pin 8 which the other wind direction switching louvers follow and operates within a limited range does not fall off, and it is possible to prevent the occurrence of troubles accordingly.

According to the present embodiment, it is possible to provide a mechanism which can inexpensively prevent a defect caused by the dropout of the connecting portion of the universal joint of the four-direction air flow direction switching louver.

[0014]

As described above, according to the present invention, it is possible to prevent the occurrence of problems due to the drop of the connecting portion of the plurality of wind direction switching louvers due to the universal joint with a simple structure, and it is possible to improve the assembling property at a low cost.

[Brief description of drawings]

FIG. 1 is a plan view of an embodiment of the present invention.

FIG. 2 is an explanatory diagram of a stopper mechanism and a universal shaft coupling portion.

[Explanation of symbols]

3a-d ... Wind direction switching louvers, 4a-c ... Connecting rods, 5a-
d ... power transmission shaft, 6 ... louver fixing bush, 7
... Shaft side stopper, 8 ... Connecting pin, 9 ... Universal joint, 10 ...
Bush side stopper.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazuhisa Yagi 390 Muramatsu, Shimizu City, Shizuoka Prefecture, Hitachi Shimizu Engineering Co., Ltd.

Claims (1)

[Claims] 1. An air suction port, a blower, a heat exchanger, and a plurality of air outlets, the shaft of a wind direction switching louver provided at the air outlet is connected by a universal joint, and one or more of the shafts are connected. In an air conditioner having a mechanism that reciprocally rotates by an electric motor to switch the wind direction of blown air, a drop-out prevention stopper that limits the swing width to a connecting portion of the wind direction switching louver with a universal joint, and a bearing portion of the wind direction switching louver. An air conditioner characterized by being installed in.