JPH076631U - Swing-type outlet of air conditioner - Google Patents

Abstract

(57) [Abstract] [Purpose] Swinging of an air conditioner that achieves smooth sliding between the annular tubular part and the rotating tubular part, and can secure sufficient airtightness without separately providing a sealing material. Provide an air outlet. [Structure] An annular tubular portion 3 formed in an air blowing portion and a rotary tubular portion 4 rotatably attached to the annular tubular portion 3 are provided, and the annular tubular portion 3 and the rotary tubular portion 4 are provided with each other. The first and second sliding rings 24, 25 which come into contact with each other and have a small friction coefficient
Intervene. The first sliding ring 24 is provided with a concave portion that fits with the convex portion formed on the annular tubular portion 3 on one surface, and an annular convex portion that projects toward the second sliding ring 4 on the other surface. 35 are provided. The second sliding ring 25 is provided on one surface with a convex portion that fits into the concave portion formed on the rotary tubular portion,
An annular concave portion 36 slidably fitted to the annular convex portion on the other surface
Is provided. Friction can be reduced by sliding the sliding rings together, and the airtightness can be maintained by the unevenness of each sliding ring.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a swinging air outlet of an air conditioner provided to change the blowing direction of temperature-controlled air.

[0002]

[Prior art]

 Conventionally, as this type of swing-type air outlet, the one disclosed in Japanese Utility Model Laid-Open No. 3-89340 is known. This is a structure in which an annular cylinder is formed around the air outlet, and a rotary cylinder is rotatably attached to this annular cylinder. Slidability is provided between the annular cylinder and the rotary cylinder. A spacer for improving airtightness and a seal member for improving airtightness are interposed.

[0003]

[Problems to be Solved by the Invention]

 However, in order to improve slidability, the above spacers are made of low friction resin such as Duracon or Teflon, but the other member that slides in contact with this spacer is hard vinyl chloride. In many cases, the sliding property is impaired and the sliding noise is generated. In addition, there is a trouble that a seal member must be separately provided to ensure airtightness.

Therefore, an object of the present invention is to realize smooth slidability between the annular tubular portion and the rotary tubular portion and suppress the generation of sliding noise. Another object of the present invention is to ensure sufficient airtightness without separately providing a sealing material.

[0005]

[Means for Solving the Problems]

 Therefore, the gist of the present invention is to have an annular tubular portion formed in the air blowing portion of the air conditioner and a rotary tubular portion rotatably attached to the annular tubular portion. The first and second sliding rings, which have a small friction coefficient and are in contact with each other, intervene between the rotary tubular portion and the rotary tubular portion, and the first sliding ring is formed on the one surface of the annular tubular portion. A concave portion that fits the convex portion is provided, and an annular convex portion that projects toward the second sliding ring is provided on the other surface, and the second sliding ring has the rotating tubular portion on one surface. A convex portion that fits into the concave portion formed in the above is provided, and an annular concave portion that slidably fits into the annular convex portion is provided on the other surface.

[0006]

[Action]

 Therefore, the first sliding ring is fixed to the annular tubular portion, the second sliding ring is fixed to the rotary tubular portion, and the annular tubular portion and the rotary tubular portion are fitted to each other so that the first and second Since the two sliding rings are engaged with each other and the sliding rings are slid together, the friction can be reduced, and the ring-shaped protrusion of the first sliding ring can be used for the second sliding ring. Since the annular concave portion of the ring is fitted, the airtightness can be maintained by the engagement of the concave and convex portions of the sliding ring, and therefore the above-mentioned problems can be achieved.

[0007]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows the configuration near the inlet / outlet of the air conditioner. The inlet / outlet 1 is formed with an annular tubular portion 3 projecting outward at the most downstream side of the air conditioning duct 2. The rotary cylinder portion 4 is rotatably attached.

The annular tubular portion 3 has a first annular stepped portion 5 formed in the middle outer periphery thereof so that the diameter of the tip portion is smaller than the diameter of the base portion and is formed beside the entrance / exit 1. It is formed integrally with the motor storage unit 6.

The rotating tubular portion 4 is attached so that one end of the opening covers the tip end portion of the annular tubular portion 3, and a second annular step portion facing the first annular step portion 5 is provided inside the vicinity of the one end. 7 is formed. A blowing duct 8 is attached to the other end of the opening. This blow-out duct 8 is formed with a plurality of tongue pieces 10 having a radial elastic force by forming a slit 9 extending in the axial direction at the base end, and the tongue pieces 10 are inserted from the tip of the rotary cylinder portion 4. Then, the hook 10a formed at the tip of the tongue piece 10 is locked to the locking portion 4a formed inside the rotary tubular portion 4, and is fixed so as not to come off from the rotary tubular portion 4.

As shown in FIG. 2, a boss portion 12 is formed in the center of the annular tubular portion 3 via three ribs 11 that extend radially in the radial direction. As shown in the figure, the boss portion 14 is also formed in the center of the rotary cylinder portion 4 via, for example, a grid-shaped rib 13, and the boss portions 12 and 14 of the annular cylinder portion 3 and the rotary cylinder portion 4 are centered. A bolt 15 is inserted into the formed through holes 12a and 14a, and a nut 16 is screwed onto the tip of the bolt 15 to assemble the annular tubular portion 3 and the rotary tubular portion 4. In particular, bushes 17a are inserted and fixed from both ends into the through hole 14a of the boss portion 14 of the rotary cylinder portion 4, and the sleeve 17b into which the bolt 15 is inserted is further inserted into the bush 17a. The rotating cylinder portion 4 is rotatable around the bolt 15 so that it can slide between the two.

A motor 18 is housed in the motor housing portion 6, and one end of a lever 20 is fixedly mounted on a rotary shaft 18 a of the motor 18. As shown in FIG. 4, one end of a connecting rod 21 is rotatably attached to the other end of the lever 20, and the connecting rod 21 is bent so as to pass through the inside of the annular cylindrical portion 3. The other end is rotatably connected to the slider 22 provided on the grid-shaped rib 13 of the rotary cylinder 4. Here, since the slider 22 slides only along the sliding groove 23 formed in the rib 13, the sliding groove 23 radiates from the vicinity of the boss portion 14 in this embodiment. It is extended in the direction.

When the lever 20 rotates around the rotation shaft 18 a of the motor 18 due to the rotation of the motor 18, the rotary cylinder portion 4 interlocks with the movement of the lever 20 via the connecting rod 21. Starts a swinging motion around the boss portion 14.

As shown in FIGS. 5 and 6, first and second sliding rings 24 and 25 are provided on the step portions 5 and 7 of the annular tubular portion 3 and the rotary tubular portion 4 which oppose each other. It is installed.

The sliding rings 24 and 25 are made of a resin having a small friction coefficient such as Duracon or Teflon in order to reduce the sliding resistance, and the first sliding ring provided in the annular tubular portion 3 is used. An annular concave portion 26 is formed in a portion of the annular tubular portion 3 which is in contact with the step portion 5, and the annular concave portion 26 is fitted to an annular convex portion 27 formed in the first annular step portion 5 of the annular tubular portion 3. It is fixed together. Particularly, as shown in FIG. 7, the annular convex portion 27 of the annular tubular portion 3 is partially formed with a rib 28 in the radial direction, while the annular concave portion 26 of the sliding ring 24 has this rib 28. A slit 29 is formed at a position aligned with 28 so that the sliding ring 24 does not rotate with respect to the annular tubular portion 3.

Further, the second sliding ring 25 provided on the rotary cylinder portion 4 has an annular convex portion 30 formed at a portion in contact with the rotary cylinder portion 4, and the annular convex portion 30 is formed on the rotary cylindrical portion 4. It is fitted and fixed in an annular recess 31 formed in the step 7. In particular, as shown in FIG. 8, the annular concave portion 31 of the rotary tubular portion 4 is formed with a rib 32 so as to partially close the concave portion, whereas the annular convex portion of the sliding ring 25 has a rib 32. A slit 33 is formed at a position aligned with the rib so that the sliding ring 25 does not rotate with respect to the rotary cylinder portion 4.

The first sliding ring 24 and the second sliding ring 25 have an annular projection 35 formed on the first sliding ring 24 and a ring formed on the second sliding ring 25. The recesses 36 are slidably fitted in contact with each other.

In the above configuration, when the motor 18 rotates, the sliding ring 24 of the annular tubular portion 3 and the sliding ring 25 of the rotational tubular portion 4 slide with the oscillating motion of the rotating tubular portion 4. Since each of the sliding rings 24 and 25 is made of low friction resin, smooth sliding can be realized. Further, by reducing the friction, it is possible to suppress the generation of the sliding noise caused by the sliding ring 24 and the sliding ring 25 rubbing, and to reduce the load on the motor 18 due to the friction.

Further, since each of the sliding rings 24 and 25 has a structure in which the annular convex portion is engaged with the annular concave portion, the number of contact surfaces increases, and air leaks correspondingly without the sealing material. It becomes difficult, and good airtightness can be secured.

[0020]

【The invention's effect】

 As described above, according to the present invention, the concave portion formed on the first sliding ring is fitted into the convex portion formed on the annular tubular portion, and the first sliding ring is attached to the annular tubular portion. And the convex portion formed on the second sliding ring is fitted into the concave portion formed on the rotary cylinder portion, and the second sliding ring is fixed on the rotary cylinder portion. Since the annular convex portion of the sliding ring and the annular concave portion of the second sliding ring are slidably fitted to each other so that the rotary tubular portion is rotatably attached to the annular tubular portion, the sliding resistance is increased. Can be made smaller, smoother sliding can be realized, and sliding noise can be suppressed. Further, since the annular convex portion of the first sliding ring is fitted with the annular concave portion of the second sliding ring, sufficient airtightness can be secured without separately providing a sealing material. is there.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a swing-type air outlet of an air conditioner according to the present invention.

FIG. 2 is a plan view showing an annular tubular portion of the swing-type outlet according to the present invention and its surroundings.

FIG. 3 is a bottom view showing a rotary cylinder portion of the swing-type outlet according to the present invention.

FIG. 4 (a) and FIG. 4 (b) are explanatory views showing a swinging mechanism of a swinging type outlet according to the present invention.

FIG. 5 is an exploded perspective view of the swing-type air outlet according to the present invention.

FIG. 6 is a cross-sectional view showing first and second sliding rings interposed between the annular tubular portion and the rotary tubular portion.

FIG. 7 (a) is a perspective view partially showing an annular tubular portion and a first sliding ring, and means for fixing the sliding ring to a step portion of the annular tubular portion is shown. ing. Figure 7 (b)
[Fig. 4] is a sectional view of a portion where this fixing means is provided.

FIG. 8 (a) is a perspective view partially showing a rotary cylinder part and a second sliding ring, and shows means for fixing the sliding ring to the step part of the rotary cylinder part. ing. Figure 8 (b)
[Fig. 4] is a sectional view of a portion where this fixing means is provided.

[Explanation of symbols]

 3 Annular Cylindrical Section 4 Rotating Cylindrical Section 24 First Sliding Ring 25 Second Sliding Ring 26, 31, 36 Annular Recess 27, 30, 35 Annular Convex

Claims (1)

[Scope of utility model registration request] 1. An air-conditioning apparatus, comprising: an annular tubular portion formed at an air blowing portion; and a rotary tubular portion rotatably attached to the annular tubular portion, and between the annular tubular portion and the rotary tubular portion. Are in contact with each other and have first and second sliding rings having a small coefficient of friction interposed therebetween, and the first sliding ring has a concave portion fitted on one surface with a convex portion formed on the annular tubular portion. And an annular convex portion that protrudes toward the second sliding ring is provided on the other surface, and the second sliding ring is fitted on the one surface with a concave portion formed in the rotary cylinder portion. A swing-type air outlet of an air conditioner, which is provided with a convex portion which is provided with a circular concave portion that slidably fits with the circular convex portion on the other surface.