JPS601487B2 - Support device for cylindrical shafts such as louvers - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a support device for a cylindrical shaft of a so-called rotating member such as a louver that changes the wind direction in an air conditioner.

The above-mentioned louver is rotatably supported within the ventilation area, but in order to prevent it from moving due to wind pressure, the shaft b of the louver a is inserted into the hole d of the supporting side plate c, as shown in Fig. 1, for example. , a means for biasing the hole d to one side using an elastic wire e such as a piano wire is employed.

However, in such a configuration, the part where shaft b is supported is hole d.
If the wind pressure is strong, there will still be movement (particularly movement in a direction perpendicular to the two supported points), and the wire must be rotated by touching the hole d. Therefore, the movement is not smooth, and even if a separate part is joined to the hole d to achieve smoothness, the cost will increase and assembly will be troublesome. There is also a method in which a loop is formed in the wire and the shaft is supported within this loop, but due to the balance between the shaft diameter and the loop diameter, it is difficult to maintain elasticity to the extent that it does not move due to wind pressure, and an improvement has been desired. In view of this, the present invention has been made with the aim of providing a support device that can support a shaft with appropriate elasticity using only a wire rod. explain.

In the figure, a louver 1 is rotatably supported by a cylindrical shaft 4 passing through a side plate 3 forming an air outlet 2 of an air conditioner main body (not shown).

A support wire 5 is provided on the shaft 4 protruding from the side plate 3 to prevent the louver 1 from rotating due to wind pressure. That is, the support wire 5 is formed by bending an elastic wire such as a piano wire, and the wire 5 will be described in detail below. 5a is a circular support portion through which the shaft 4 is inserted, and has a diameter slightly larger than the diameter of the shaft 4.

Both ends of the circular support portion 5a intersect from this point and extend in the tangential direction, and oval portions 5b and 5c are formed in opposite directions, respectively, and these oval portions 5b and 5c are opposite to the intersection of the circular support portion 5a. Oval portions 5b and 5c that intersect and face each other on the sides
Linear support portions 5d and 5e are formed which extend sufficiently longer than the length of . Therefore, the linear support portions 5d and 5e are located on both sides of a portion of the circular support portion 5a. 5f is a curved portion in which a part of the linear support portion 5d is bent near the apex of the oval portion 5b, and the extending portion beyond the apex is configured to be approximately on the same plane as the other linear support portion 5e. This is what I did.

As shown in FIGS. 2 and 5, the wire assembly 5 is attached to the shaft 4 by inserting the shaft 4 through the circular support portion 5a and attaching the linear support portions 5d and 5e at both ends to this support portion. The elongated circular parts 5b and 5c are pulled in the same direction so that they face inside the circular support part 5a, and the support parts 5d and 5e are locked in the locking parts 6 at appropriate positions on the side plate 33.

Therefore, the axis 4 is a point P at the intersection of the circular support portion 5a, and
Three-point support is performed by contacting two points P, P2 of each of the linear supports 5d and 5e within the circular support 5a. As a result, the shaft 4 is completely prevented from moving vertically and horizontally, and the elastic pressing force is sufficient.Furthermore, since no load is applied to the hole (not shown) in the side plate 4, the movement of the louver 1 is not influenced by the hole. The rotation is smooth because it only resists the elastic force of the wire. As is clear from the above description, the support device for a cylindrical shaft according to the present invention includes a circular support part into which a cylindrical shaft such as a louver is inserted by bending a single wire, and a tangential direction of the circular support part. A pair of elliptical portions extending from the elliptical portions, and a linear support portion intersecting with the elliptical portions in the circular support portion and extending longer than the opposing elliptical portions are formed, and the elliptical portions are curved. Each linear support part is located within the circular support area, and the cylindrical shaft is supported by one point of the circular support part and two points of each linear support part, so that the upper and lower parts of the shaft are Since sideways movement is prevented, reliable support is possible, and since the supported state is ensured, there is no unnecessary rotation of the shaft, and the rotation can be performed smoothly.

Further, the degree of elastic support can be arbitrarily adjusted by the degree of curvature of the oval portion, that is, the degree of tension of the linear support portion.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing a conventional shaft support structure in an air conditioner, Fig. 2 is a perspective view showing a support device for a cylindrical shaft according to an embodiment of the present invention in an air conditioner, and Fig. 3 is a support device. Fig. 4 is a side view of the wire, Fig. 5 is a front view of the wire constituting the wire.
The figure is a front view of the same wire when it is used. 4...Cylindrical shaft, 5...Support wire material, 5
a... Circular support part, 5b, 5c... Oval part, 5d, 5e... Linear support part, P.・・・
...One point, P2, P3...Two points. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5

Claims (1)

[Claims] 1. A circular support part into which a cylindrical shaft such as a louver is inserted by bending a single wire, a pair of elliptical parts projecting in the tangential direction of this circular support part, and from this ellipse part the circular support part forming linear support portions which intersect with each other and extend longer than the opposing oval portions, the elongate portions are curved to position each linear support portion within the circular support portion, and the cylindrical shaft is positioned within the circular support portion; A support device for a cylindrical shaft such as a louver, which is supported by one point of a circular support part and two points of each linear support part.