JPH0413040A - Air conditioner grill - Google Patents

Abstract

PURPOSE:To improve durability by a method wherein an upstream side end and a downstream side end of a wind direction deflecting plate in a wind passing direction are unbendable hard parts, a middle part between the both hard parts is a bendable soft part, and the hard parts and the soft parts are made of the same quality material of a similar melting point and different hardness and combined to each other by heat fusing. CONSTITUTION:A plurality of wind direction deflecting plates 2 are arranged within a body 1. Each of the wind direction deflecting plates 2 consists of an unbendable front hard part 3 which forms a downstream side part in the wind (W) passing direction, an unbendable rear hard part 4 which forms an upstream side part in the wind (W) passing direction, and a bendable soft part 5 which forms a middle part between the hard parts 3 and 4. The soft part 5 and both front and rear hard parts 3 and 4 are made of the same quality material of a similar melting point and different hardness and combined to each other by heat fusing. Accordingly, even if the change of the bending direction of the wind direction deflecting plates 2 is repeated over a long time, the soft part 5 and the both front and rear hard parts 3 and 4 are not cut off at the combining part nor peeled off.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an air conditioning grill for adjusting the direction of wind blowing in, for example, an air conditioner installed indoors in a house for air conditioning.

[Prior Art] Conventionally, this type of air conditioning grill has, for example, a main body through which wind can pass, and a plurality of bendable members disposed within the main body and rotatably supported by the main body at one end thereof. Some wind deflection plates include a plurality of wind deflection plates and a connecting member that connects the other ends of the plurality of wind deflection plates. In this air-conditioning grill, the upstream and downstream ends of the wind direction deflection plate in the wind passing direction are hard parts that cannot be bent, and the intermediate part between the hard parts is a soft part that can be bent. Therefore, by curving each soft portion of the wind direction deflection plate, the wind direction can be smoothly changed.

In the above-mentioned air conditioning grill, in order to connect the hard part and the soft part that make up the wind deflection plate, they are fixed with adhesive, or the hard part is made up of a shaft with high rigidity, and this is buried in the soft part. Or, the hard part is made up of a tubular shaft, and a part of the soft part is inserted into this shaft or fitted in a concave-convex relationship.

[Problems to be Solved by the Invention] However, the conventional coupling structure of the hard part and the soft part has the following problems. Although a certain degree of bonding strength can be obtained with the technique of fixing the hard part and the soft part using an adhesive, an increase in the manufacturing cost is inevitable due to the increase in the number of adhesives and their application steps.

In addition, techniques that utilize mechanical coupling, such as embedding the shaft in a soft part, inserting a part of the soft part into the shaft, or fitting the hard part and the soft part in a concave-convex relationship, are insufficient. It is not possible to obtain sufficient bond strength. Therefore, if the direction of curvature of the wind deflection plate is repeatedly changed over a long period of time, there is a risk that the bonded portion may be cut or peeled off.

The present invention has been made in view of the above-mentioned circumstances, and its purpose is to be able to firmly connect a hard part and a soft part without using an adhesive, and to keep manufacturing costs low. It is an object of the present invention to provide an air-conditioning grill with excellent durability, in which the joint portion does not break or peel off even when used for a long period of time.

[Means for Solving the Problems] In order to achieve the above object, the present invention includes a main body through which wind can pass, and a main body disposed within the main body and rotatably supported by the main body at one end thereof. A plurality of wind direction deflection plates and a connecting member connecting the other end sides of the plurality of wind direction deflection plates are provided, and the upstream and downstream ends of the wind direction deflection plates in the wind passing direction cannot be bent. The hard part is a flexible part, and the middle part between the hard parts is a bendable soft part. The gist of this is an air-conditioning grill whose soft parts are bonded together by heat fusion.

[Function] The hard part and the soft part constituting the wind deflection plate are made of the same material having similar melting points and different hardnesses, so they are compatible with each other. Therefore, when the hard part and the soft part are heat-sealed, both are uniformly melted and integrated. Therefore, the bonding force due to the heat fusion is applied to machines such as embedding the shaft in a soft part, inserting a part of the soft part into the shaft, or fitting the hard part and the soft part in a concave-convex relationship. This is larger than the conventional technology that uses virtual connections. Therefore, it is not necessary to use an adhesive to bond the soft part and the hard part.

[Example 1] An example embodying the present invention will be described below with reference to the drawings.

Fig. 2 is a partial perspective view of the air conditioning grill of this embodiment, and Fig. 5 is an exploded perspective view thereof. ing. The main body 1 of the air conditioning grill has a horizontally elongated shape, and wind W introduced from the rear (right side in FIG. 2) passes through the main body 1 and is blown out to the front.

A plurality of wind direction deflecting plates 2 (only two are shown in the figure) are arranged inside the main body l. Each wind direction deflecting plate 2 has an unbendable front rigid part 3 that constitutes a downstream end in the direction in which the wind W passes.
Similarly, it is formed from an unbendable rear rigid part 4 which constitutes the upstream end in the direction of passage of the wind W, and a bendable soft part 5 which constitutes an intermediate part between the front and rear rigid parts 3 and 4. There is.

FIG. 1 is a side view of the front and rear hard parts 3, 4, FIG. 3 is a sectional view taken along the line ■■ in FIG. 1, and FIG. 4 is a sectional view taken along the line ■■ in FIG. A body portion 6 having a thickness t1, and a plate thickness t2 which is integrally formed on the rear side and is smaller than the body portion 6.
It consists of a connecting part 7 having a. A cylindrical portion 8 is provided at the upper end of the main body 6, and a shaft (not shown) of the upper plate 1a of the main body 1 is inserted into the support hole 8a. Further, a shaft 9 is provided protruding from the lower end of the main body 6, and this shaft 9 is connected to the bottom plate 1b of the main body 1.
is supported directly or via a link 17 described later.

Therefore, each wind deflection plate 2 has a cylindrical portion 8 and a shaft 9,
It is rotatably supported relative to the main body 1. Note that a plurality of through holes 10 are formed in the joint portion 7 so as to be vertically spaced apart from each other.

On the other hand, each rear rigid part 4 is integrally formed with a main body part 11 having the same plate thickness tl as the main body part 6 of the front rigid part 3, and the same plate as the connecting part 7 of the front rigid part 3. The connecting portion 12 has a thickness t2.

A plurality of through holes 13 are formed in this joint portion 12 so as to be vertically spaced apart from each other. Further, a notch 14 is formed in the lower part of the main body part 11 and opens at the lower edge thereof.

Each of the soft parts 5 is the main body part 6.11 of the front and rear hard parts 3, 4.
It has the same plate thickness t2 as , and a part thereof enters the through holes 10 and 13 to cover both the joint portions 7 and 12.

Therefore, the left and right sides of each coupling part 7, 12 in the soft part 5 are connected to each other through the through hole 10°13, and the left and right sides of the soft part 5 are connected to the left and right sides of the main body parts 6, 11. They are flush with each other.

The soft portion 5 and the front and rear hard portions 3 and 4 are made of the same material having similar melting points and different hardnesses, and are each bonded by heat fusion. Examples of homogeneous materials forming the soft portion 5 and the front and rear hard portions 3 and 4 include:
Examples include combinations of soft polypropylene and hard polypropylene, soft polyvinyl chloride and hard polyvinyl chloride, soft polyurethane and hard polyurethane, and soft rubber and hard rubber. In this example, a thermoplastic elastomer ("Labalon" manufactured by Mitsubishi Yuka Co., Ltd.) is used as the homogeneous material, the hardness (JIS A hardness) of the soft part 5 is 24°, and the hardness of the front and rear hard parts 3 and 4 is It was set to 80'.

As shown in FIGS. 2 and 5, the rear portions of the wind deflecting plates 2 are interconnected by a connecting member 15. As shown in FIGS.

That is, this connecting member 15 has a long plate shape extending in the left-right direction, and a pair of annular guide portions 16 are formed at predetermined intervals. The portion sandwiched between the guide portions 16 is engaged in the notch 14 of the wind direction deflection plate 2.

Note that some of the edges of the guide portion 16 extend forward, and a hole 16a is bored at the front end thereof.

A link 17 is rotatably supported on the bottom plate 1b of the main body 1 by a support shaft 17c. And link I7
The shaft 9 of the wind direction deflecting plate 2 is inserted into the hole 17a at the upper front end, and the hole 16a of the connecting member 15 is inserted into the projection 17b at the rear end.
are fitted.

A square hole 17d is bored in the lower part of the support shaft 17c of the link 17, and the square columnar projection 19a of the cam 19 engages with this square hole 17d with a plate-like rod 18 extending in the left-right direction interposed therebetween. There is. A pair of locking recesses 18a are formed adjacent to each other in the rod 18, and a pair of left and right locking protrusions 19b projecting upward from the cam 19 are engaged in both locking recesses 18a.

Therefore, the rod 1 is driven by a motor (not shown).
8 is reciprocated in the left-right direction, the cam 19 and the link 1
7 rotates around the support shaft 17c. Since the guide portion 16 of the connecting member 15 is connected to the protrusion 17b at the rear end of the link 17, the connecting member 15 moves from side to side as the link 17 rotates. Since this connecting member 15 fits into the notch 14 of the rear rigid portion 4, the rear rigid portion 4 moves in the same direction as the connecting member 15. As a result, the soft portion 5 of the wind direction deflection plate 2 is curved so as to bulge in a direction opposite to the direction of movement of the connecting member 15. Therefore, the direction of the wind W introduced from the rear of the air conditioning grille is gradually changed along the soft portion 5 of the wind direction deflection plate 2, and is blown out in front of the air conditioning grille.

By the way, each of the wind direction deflecting plates 2 is obtained by sequentially injection molding the front and rear hard parts 3.4 and the soft parts 5.

That is, first, the molding material for the front and rear hard parts 3.4 is heated and melted and injected into the cavity of the mold. Then, the front rigid part 3 consisting of the main body part 6 and the connecting part 7 is molded, and the rear rigid part 4 also consisting of the main body part 11 and the connecting part 12 is molded. These connecting parts 7, 12
have a plurality of through holes 10 and 13, respectively.

Subsequently, the front and rear hard parts 3 and 4 are transferred to another mold while maintaining the high temperature, and the molding material for the soft part 5 is injected and filled into the cavity of the same mold. Then, the molten molding material enters the through holes 10 and 13 of the front and rear hard parts 3 and 4, and forms the joint part 7. Cover the entire I2.

At this time, since the molding materials for the soft part 5 and both the front and rear hard parts 3 and 4 are made of homogeneous materials with similar melting points and different hardnesses, the compatibility of both materials is extremely good. . Therefore, the boundary portion between the two materials melts and mixes uniformly to become a single body. Therefore, when the molten material in the cavity is solidified by cooling, the front and rear hard parts 3, 4
and the soft portion 5 are formed, and the boundary portion between the two is thermally fused to obtain the wind direction deflecting plate 2 having the desired shape.

In this way, in this embodiment, a part of the soft part 5 is inserted into the through holes 10, 13 of the front and rear hard parts 3, 4, and the hard parts 3, 4 and the soft part 5 are connected. The front and rear ends of the soft part 5 were heat-sealed to the front and rear hard parts 3 and 4.

For this reason, conventional techniques that utilize mechanical coupling, such as embedding the shaft in the soft part, inserting a part of the soft part into the shaft, or fitting the hard part and the soft part in a concave-convex relationship, In comparison, in this embodiment, the soft portion 5 and the front and rear hard portions 3 and 4 can be connected with extremely high strength. Therefore, even if the bending direction of the wind deflection plate 2 is repeatedly changed over a long period of time, the soft part 5 and the front and rear hard parts 3
, 4 will not be cut or peeled off.

Furthermore, in this embodiment, the front and rear hard parts 3 and 4 and the soft part 5
Since the two can be bonded to each other at the same time as being molded, there is no need to use adhesive. This eliminates the need for the adhesive application process in the prior art, making it possible to reduce manufacturing costs accordingly.

It should be noted that the present invention is not limited to the configuration of the embodiment described above, and may be arbitrarily changed without departing from the spirit of the invention, such as changing the number and shape of the through holes 10 and 13 as appropriate.

E Effects of the Invention According to the present invention as described above, the hard part and the soft part of the wind deflection plate can be firmly connected without using an adhesive. Therefore, it is possible to reduce the manufacturing cost of the wind deflection plate and the entire air conditioning grill by omitting the adhesive application process in the prior art.

Furthermore, even if the bending direction of the wind deflection plate is repeatedly changed due to long-term use, the joint between the hard part and the soft part can be reliably prevented from being cut or peeled off, improving durability. .

[Brief explanation of the drawing]

The drawings show an embodiment embodying the present invention; FIG. 1 is a side view of the front and rear hard parts of the wind deflection plate, FIG. 2 is a partial perspective view of the air conditioning grille, and FIG. 4 is a sectional view taken along the line IV--IV in FIG. 1, and FIG. 5 is a partially exploded perspective view of the air conditioning grill. DESCRIPTION OF SYMBOLS 1... Main body, 2... Wind direction deflection plate, 3... Front hard part, 4... Rear hard part, 5... Soft part, 15...
Connecting member, W...wind. Patent Applicant Toyoda Gosei Co., Ltd. Agent Patent Attorney Hironobu Onda (and 1 other person) 11th InyljA Book!笥本月

Claims (1)

[Claims] 1. A main body (1) through which wind (W) can pass, and the main body (1)
), and one end of which is rotatably supported by the main body (1); and the other end of the plurality of wind deflection plates (2). a connecting member (15) to be connected, and an unbendable hard part (
3, 4), and the middle part between both hard parts (3, 4) is a bendable soft part (5), and these hard parts (3, 4) and soft part (5) have melting points similar to each other. An air conditioning grill characterized in that the grill is made of the same material having different hardness, and the hard parts (3, 4) and the soft part (5) are bonded together by heat fusion.