JPH0532948U - Air conditioner - Google Patents

Abstract

(57) [Summary] [Purpose] It is an object of the present invention to provide a stable product that does not cause any trouble even when a wind stress is applied to a wind direction adjusting vane. [Structure] A unidirectional suction port and a multidirectional outlet 2a are provided, and a plurality of vanes 3 for adjusting the wind direction of the blown air heat-converted inside the multidirectional outlet, and the vanes 3 via a universal joint 9. In a ceiling-embedded cassette type air conditioner provided with a driving motor 4, a bulky stopper 7c is provided at an end of each shaft 7a of the cross joint 7 of the universal joint 9.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an air conditioner, and more particularly, to a universal joint of a wind direction adjusting vane that adjusts the direction of air blown out.

[0002]

[Prior Art]

 FIG. 4 is a cross-sectional view of the ceiling-embedded air conditioner, in which 1 is an indoor unit main body, and is provided with a decorative panel 2 that forms a design surface. Each of the outlets 2a of the decorative panel 2 is provided with a wind direction adjusting vane 3 for adjusting the wind direction of the blown wind. 3 and 4 are perspective views showing a drive part and a connecting part of the wind direction adjusting vane 3 arranged on the bristles 2, and 4 is a vane motor for driving the wind direction adjusting vane 3, which is provided with a cam 4a and a protrusion 4b. ing. Reference numeral 5 denotes an arm that transmits the rotation of the vane motor 4 to the shaft 6, and is attached to the shaft 6. Further, the protrusion 4b of the cam 4b is inserted into the hole 5a so as to be driven. At both ends of the shaft 6, bearing portions 7b on which the shaft 7a of the cross joint 7 slides are provided. Reference numeral 8 denotes a vane side shaft, which is attached to both ends of the wind direction adjusting vane 3, and is provided with a cross joint 7 and a bearing portion 8b on which the shaft 8 slides. The cruciform joint 7 is fitted into the bearing portion 8b of the shaft 8 on the vane side and the bearing portion 7b of the shaft 6 to form a universal joint 9.

Next, the operation will be described. The rotational movements of the cam 4a and the protrusion 4b attached to the vane motor 4 are transmitted through the shaft 6 by the arm 5 and the respective wind direction adjusting vanes 3 are rotated by the universal joint 9 at an arbitrary angle, and the air blown out into the room is Change the wind direction from horizontal to downward and downward to horizontal.

Next, a method of assembling the universal joint will be described. As shown in FIG. 6, each shaft 7a of the cruciform joint 7 is press-fitted into the bearing portion 8b of the shaft 8 on the vane side, and then fitted into the bearing portion 7b of the shaft 6 to be fitted therein. Is configured.

[0005]

[Problems to be solved by the device]

 Since the conventional universal joint of the air conditioner is configured as described above, the work of attaching the decorative panel to the indoor unit main body and the service person gripping or twisting the wind direction adjusting vane in particular applies stress to the universal joint. As a result, the cruciform joint of the universal joint came off and the wind direction adjusting vanes did not work together.

This invention has been made to solve the above problems, and to provide a stable product that does not hinder the universal joint even when the wind direction adjusting vanes are subjected to torsional stress or impact. It is intended for.

[0007]

[Means for Solving the Problems]

 The universal joint according to the present invention has a cruciform joint with a stopper provided at the end of each shaft.

[0008]

[Action]

 The universal joint of the air conditioner in this invention has a stopper in the shape of a cross at the end of each shaft of the cruciform joint so that even if a twist stress is applied to the wind direction adjusting vane, the universal joint is not affected. It is a thing.

[0009]

【Example】

 Example 1. An embodiment of the present invention will be described below with reference to FIGS. Reference numeral 7 denotes a cruciform joint, and a stopper 7c having a cap shape is provided at the end 7a. Each shaft 7a of the cruciform joint 7 has a sliding portion 8b of the shaft 8 on the vane side and a sliding portion 7b of the shaft 6 respectively. To form a universal joint 9. The bulky stopper 7c of the cruciform joint 7 is in contact with the shaft 8 and the shaft 6 on the vane side, and even if each shaft 7a of the cruciform joint 7 is subjected to torsional stress or the like, its stopper 7c prevents It prevents the V-shaped joint 7 from coming off.

Next, the operation will be described. The rotational movement of the cam 4a of the vane motor 4 and the protrusion 4b is transmitted to the shaft 6 via the arm 5, and the cross joint 7 transmits the vane-side shaft 8 to rotate the vane 3.

[0011]

[Effect of the device]

 As described above, according to the present invention, a unidirectional suction port and a multidirectional outlet are provided, and a plurality of vanes for adjusting the wind direction of the heat-exchanged blown air are provided inside the multidirectional outlet, and the vanes are universal. In a ceiling-embedded cassette type air conditioner equipped with a motor driven via a joint, since a bulkhead stopper is provided at the end of each shaft of the cruciform joint of the above universal joint, the cruciform shape by external force is applied. This has the effect of preventing the joint from coming off and providing a stable product.

[Brief description of drawings]

FIG. 1 is a top view showing a decorative plate of an air conditioner according to an embodiment of the present invention as viewed from the back side.

FIG. 2 is an exploded perspective view showing a main part according to an embodiment of the present invention.

FIG. 3 is a cross-sectional view showing a conventional air conditioner.

FIG. 4 is an exploded perspective view showing a main part of a drive unit of a conventional air conditioner.

FIG. 5 is an exploded perspective view showing a bearing portion of a conventional air conditioner.

[Explanation of symbols]

 3 Wind direction vane 4 Motor 7 Cross joint 7a Shaft 7c Stopper 9 Universal joint

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Hiroshi Nakajima, 3-18-1, Oga, Shizuoka City Mitsubishi Electric Engineering Co., Ltd., Nagoya Works Shizuoka Branch Office (72) Masashi Yamada, 3-18, Oga, Shizuoka City No. 1 Mitsubishi Electric Engineering Co., Ltd. Nagoya Office Shizuoka Branch

Claims (1)

[Scope of utility model registration request] 1. A unidirectional suction port and a multidirectional air outlet are provided, and a plurality of vanes for adjusting the wind direction of the blown air that has been heat-converted inside the multidirectional air outlet, and the vanes are driven through a universal joint. A ceiling-embedded cassette type air conditioner provided with a motor, wherein a bulky stopper is provided at an end of each shaft of the cross joint of the universal joint.