JPS63294428A - Grill device - Google Patents

Abstract

PURPOSE:To provide a grill device which has a neat apperance and, at the same time, has no material and/or color specified by forming ribs along and on the back face of the laterial cleat and at an angle specified with respect to the front face of the grill device. CONSTITUTION:Because each of ribs 32 is formed at an angle theta larger than 90 deg. with respect to the front face of a grill section 28 along the back face 33 of a laterial cleat 30 and the grill section 28 forms U-shape, the upper end face 34 of the rib 32 has a shape that is approximately the same as the back face 33 of the lateral cleat 30. Only a small portion of the illumination light in the room which enters obliquely from among the lateral cleats 30 hits the upper face 34 and, furthermore, even a little light, if there is any, that is reflected on the upper end face 34 runs toward the back side. And the light that is reflected again on the back side is further damped and it is not conspicuous when looking at from the front. Accordingly if the color of the suction grill 26 is white, it gives no strange feeling. Further, the gap G which is formed by the front end of the lateral cleat 30 and the rear end of the next lateral cleat 30 is set at zero, the gap G and the vertical cleats 31 can not be seen when the grill 28 is looked at from the front face, and parts in an indoor unit 20 also can not be seen, giving a neat apperance and requiring no color matching with the parts placed inside.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Field of Application) The present invention relates to a grill device provided, for example, at an air inlet or an air outlet of an air conditioner.

(Prior Art) FIGS. 13 and 14 show a conventional indoor unit of an air conditioner. This indoor unit has rear plate main body 1
A case body 3 is constructed by attaching a front panel 2 to the front surface of the case body 3, and the case body 3 is provided with an air inlet 4 and an air outlet 5. There is an air intake port 4 on the front panel 2.
A suction grill 6 is provided correspondingly. The front panel 2 and the intake grille 6 are integrally molded from synthetic resin. In addition, the above-mentioned suction grille 6, in which the indoor heat exchanger 8, fan 9, etc. are built into the case body 3, has a plurality of diagonally formed horizontal lines as shown in FIGS. 15 to 17 to improve the image. A diagonal grill structure consisting of crosspieces 11 is often used. Several vertical bars 12 are provided to reinforce the plurality of horizontal bars 11, but these vertical bars 12 are arranged behind the horizontal bars 11 to make them less noticeable in appearance. Further, the horizontal bar 11 and the vertical bar 12 are connected by a rib 13.

Mold 15.1 used for molding this suction grill 6
6 opens and closes in a direction perpendicular to the front surface of the suction grill 6, as shown in FIG. For this reason, the gap G between the # end of each horizontal bar 11 and the rear end of the adjacent horizontal bar 11 must be approximately 1.5 # or more, and the upper end of the rib 13 should have a draft angle as shown in Fig. 15. It is formed with a flat end face 17.

(Problems to be Solved by the Invention) However, since the gap G is provided, each vertical bar 8 is visible from the front through this gap G. Moreover, when the suction grille 6 is white, as shown in FIG. Upper horizontal bar 1
The illuminating portion 18 is illuminated from the front as shown in FIG. 16. And this Teruki part 1
8 appears to be a substantially straight line connected to the vertical bar 12, which has the disadvantage of impairing the appearance.

The present invention was made in view of the above circumstances, and its purpose is to improve the ribs that connect the horizontal bars and vertical bars, so that indoor lighting light that enters diagonally between the horizontal bars is reflected by the ribs. To provide a grill device in which no part appears bright when illuminated with light, and the material and color of the grill are not specified.

[Structure of the Invention] (Means and Effects for Solving the Problems) In order to solve the above problems, the present invention provides a plurality of horizontal bars that are disposed diagonally on the front surface of the grill portion, the front end of which is high and the rear end of which is low. , a reinforcing vertical bar arranged on the back side of the horizontal bar, and a rib connecting the horizontal bar and the vertical bar, in which the rib is set at an angle of 90° or more with respect to the front surface of the grill part. It is formed along the back side of the horizontal beam at an angle of .

Therefore, the ribs connecting the horizontal bars and the vertical bars are not visible from the front, giving a clean appearance. Furthermore, since the material and color of the grill are not specified, design freedom is increased.

(Embodiment) FIGS. 1 to 12 show an embodiment of the present invention. FIG. 2 shows an indoor unit 20 of an air conditioner. This indoor unit 20 has a front panel 22 attached to the front of a rear plate main body 21 to constitute a case main body 23. An air inlet 24 and an air outlet 25 are provided. Further, the front panel 22 is provided with a suction grill 26 corresponding to the air suction port 24. The front panel 22 and the suction grille 26 are made separately as shown in FIG. 3, and are each molded from synthetic resin.

The suction grill 26 is composed of a peripheral frame 27 and a grill portion 28. The corner portions 29 of the peripheral frame 27 have no corners and are all rounded, as shown in FIG.

Furthermore, the grill portion 28 is shown in FIGS. 1, 5, and 6.
As shown in the figure, it consists of a plurality of horizontal bars 30 arranged diagonally with a high front end and a low rear end, and a reinforcing vertical bar 31 arranged on the back side of the horizontal bars 30. and the vertical beam 31 are connected by a rib 32. The surrounding frame 27 and grill portion 28 of this suction grill 26 are integrally formed as will be described later.

Further, the horizontal bar 30 and the reinforcing vertical bar 3 in the suction grill 26
As shown in FIG.
It is formed along the back surface 33 of +530 horizontally at an angle θ of 90' or more with respect to the front surface of 8, and is formed in a so-called U-shape. Further, the gap G between the front end of each horizontal bar 30 and the rear end of the adjacent horizontal bar 30 is set to zero. Therefore, when the grill portion 28 is viewed from the front as shown in FIG. 5, the gap G is not visible.

Therefore, in the grill section 28 configured in this way,
As shown in FIG. 1, the rib 32 is formed along the back surface 33 of the horizontal bar 30 at an angle θ of 90 degrees or more with respect to the front surface of the grill portion 28, and is formed in a so-called U-shape. 3
The upper end surface 34 of the rib 32 has almost the same shape as the back surface 33 of the horizontal crosspiece 30, and the indoor illumination light that enters obliquely between the horizontal crosspieces 30 hits the upper end surface 34 of the rib 32, and moreover, the upper end surface Even if there is a small amount of light reflected at 34, it will be towards the rear. Then, the light reflected again on the rear side is attenuated considerably and is not noticeable when viewed from the front side. In other words, it does not illuminate the lower surface of the horizontal crosspiece 30, and does not appear brightly as a illuminated portion that can be seen from the front as in the conventional case. Therefore, there is no problem even if the suction grille 26 is white in color. Further, in this embodiment, the gap G between the curved end of each horizontal bar 30 and the rear end of the adjacent horizontal bar 3o is set to zero, so when the grill portion 28 is viewed from the front, the gap G is In addition to being invisible, vertical beam 3
I can't see a single thing. Of course, the parts inside the indoor unit 20 are also invisible. Therefore, it has a clean appearance, and there is no need to color match it with the built-in parts installed in the indoor unit 20, thereby achieving standardization of parts and cost reduction.

If the adjacent horizontal beams 30 are partially bent, the gap G and the parts inside the indoor unit 20 will not be visible even when viewed from slightly above the front.

Next, the above-mentioned suction grill 26 is injection molded with thermoplastic resin, but when molding this suction grill 26, the seventh
As shown in the figure, a pair of molds 41 and 42 are formed by tilting the horizontal bar 3o by an oblique angle θ so that the horizontal bar 30 becomes horizontal. That is, if each mold 41, 42 is formed to open and close in the horizontal direction (in the direction of the horizontal bar 3o), it can be formed into a shape that can be reliably cut out. In this way, the suction grille 26 having the above structure can be easily formed.

In addition, although the suction grill 26 is injection molded from thermoplastic resin in this way, resin flow 111 (hereinafter referred to as a weld line) is generated on the surface of the suction grill 26, so that the external appearance of the suction grill 26 is A hot stamping process is applied as a secondary process to improve the appearance. Examples of this hot stamping process include the method shown in FIGS. 8 and 9 and the method shown in FIG. 10.

The method shown in FIGS. 8 and 9 is suitable for processing only a single three-dimensional surface. In other words, it is not necessarily suitable for cases where there are three-dimensional corners. The upper surface of the suction grille 26 can be processed using this method. That is, as shown in FIG. 8, a jig 50 is placed inside the suction grill 26, the roller 51 is heated to 200"C or more, and the hot stamping sheet 53 is pressed against the processed surface of the suction grill 26 in the direction of the arrow. As a result, the hot stamp foil on the hot stamp sheet 53 is thermally transferred. Note that 54 and 55 are feeding devices for the hot stamp sheet 53.

Further, when hot stamping the left and right sides and the front surface of the suction grille 26, the suction grille 26 is attached to another jig 56 as shown in FIG. 9, and this jig 56 is also rotated.

On the other hand, as shown in FIG. 4, it is difficult to use the above method in the case of this suction grille 26 in which the four corner portions 29 of the peripheral frame 27 have no corners and are all rounded (three-dimensional curved surfaces). . Therefore, in this case, the method shown in FIG. 10 is used. That is, in this method, hot stamping is performed simultaneously with molding. Injection molding is performed after passing the hot stamping sheet 63 between the fixed mold 61 and the movable mold 62, and when the molds are clamped, the gap between the fixed mold 61 and the movable mold 62 is The hot stamp foil is thermally transferred onto the surface of the suction grill 26 at the joint (parting line). Material injection port (gate)
64.64 is provided in the mold 61 on the fixed side. Therefore, the hot stamp foil is thermally transferred to the surface of the suction grille 26 by the high temperature and pressure of the resin as the material is poured out. According to this method, even objects with three-dimensional curved surfaces can be hot-stamped.

Note that the external surfaces of the front panel 22 and the like are also hot-stamped by the above method.

FIG. 11 and FIG. 12 are other embodiments of the present invention,
In this embodiment, in order to prevent the ribs 32 from breaking due to pressure when performing secondary processing such as hot stamping on the front surface of the suction grille 26, the ribs 32 are placed in the middle of the ribs 32.
2. A tapered rib 70 is formed which is narrower than the width of 2. By providing this thin rib 7o, strength can be increased. Note that even if this narrow rib 70 is provided, since it is thinner than the rib 32, the amount of light reflected is extremely small and is not an eyesore.

[Effects of the Invention] As explained above, according to the present invention, the amount of indoor lighting light etc. that enters diagonally between the horizontal bars and is reflected by the ribs is reduced, and the parts illuminated by the light are not visible. Therefore, it is possible to provide a grill device in which the material and color of the grill are not specified. Therefore, parts can be standardized and costs can be reduced.

[Brief explanation of the drawing]

Fig. 1 is a side sectional view of the grill portion of an indoor unit according to an embodiment of the present invention, Fig. 2 is a perspective view of the indoor unit of the same embodiment, and Fig. 3 is an exploded perspective view of the suction grill of the embodiment. 4 is a perspective view of the corner portion of the peripheral frame of the embodiment, FIG. 5 is a front view of the suction grill of the embodiment, FIG. 6 is a view in the direction of arrow A in FIG. The figure is an explanatory diagram of a mold for forming a suction grill, FIGS. 8 to 10 are explanatory diagrams of a hot stamping device, FIG. 11 is a side sectional view of a grill part in an embodiment of the pond of the present invention, and FIG. A view in the direction of arrow B in FIG. 11, FIG. 13 is a perspective view of a conventional indoor unit, and FIG. 14 is a side sectional view of the same indoor unit.
FIG. 15 is a side sectional view of the grille part of the conventional example.
FIG. 16 is a front view of the grill portion of the conventional example, and FIG. 17 is a view taken in the direction of arrow C in FIG. 15. 20...Indoor unit, 26...Suction grill, 3
0...Horizontal bar, 31...Vertical bar, 32...Rib. Applicant's Representative Patent Attorney Takehiko Suzue Figure 1 Figure 2 Figure 3 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure 10 Figure 12 Figure 11 Figure 13 Figure 14 Figure 15 Figure 17 Figure 16

Claims (1)

[Claims] A plurality of horizontal bars are arranged diagonally on the front side of the grill part, with the front end being high and the rear end being low, and the reinforcing vertical bars are arranged on the back side of the horizontal bars, and these horizontal bars and the vertical bars are connected. 1. A grill device comprising a rib that extends along the back surface of the horizontal bar at an angle of 90 degrees or more to the front surface of the grill portion.