JPH05332570A - Resin panel for air conditioner - Google Patents

Abstract

PURPOSE:To enable playing according to expansion by screwing a reinforced plate down securely on a resin panel only at the center thereof while being screwed down at other points being made expandable relatively through a slot of the reinforced plate. CONSTITUTION:A metal plate 2 for reinforcement is fixed with a screw 3 on a center boss at the center thereof through a normal round hole (non-slot). Top of a stepped boss 4 is made to pierce a slot 7 of the metal plate 2 for reinforcement on both sides thereof and fixed with the screw 3 with the face thereof jutting slightly from the top surface of the metal plate 2 for reinforcement. Thus, even if a relative difference of thermal distortions is caused by a temperature change between a resin panel and the metal plate 2 for reinforcement depending on a difference in coefficient of thermal expansion, the metal plate 2 for reinforcement slips in the slot 7 against the stepped boss 4 at the screw fixed part on both sides of the metal plate with respect to the screw fixed section at the center. This enables the prevention of a wavy deformation of the resin panel.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resin panel for an air conditioner.

[0002]

2. Description of the Related Art FIG. 5 is a top view of a panel of a conventional air conditioner, and FIG. 6 is a sectional view taken along the line CC of FIG. In order to reinforce the resin-made panel 1, metal reinforcing sheet metal 2 is attached to the boss 6 on the back surface of the panel 1 at several places with screws 3.

[0003]

The panel of the conventional air conditioner has the following problems to be solved.

That is, the resin panel 1 expands and contracts by being heated and cooled by the heating operation and the cooling operation.

Further, the expansion and contraction due to temperature changes such as when packed and stacked in a warehouse becomes more severe, and the expansion and contraction is also remarkable accordingly. Therefore, when the reinforcing sheet metal 2 is directly attached to the back surface of the panel as shown in FIG. 5, since the shrinkage rate of the resin is higher than the shrinkage rate of the reinforcing sheet metal 2, the mounting screw 3 of the reinforcing sheet metal 2 is used as a fixing point. There was a problem of hitting and deforming.

In order to solve the above problems, it is an object of the present invention to provide a resin panel for an air conditioner, in which a mounting hole of a reinforcing sheet metal is used as an elongated hole so that a screw fastening portion can move freely according to expansion and contraction. ..

[0007]

As a means for solving the above problems, the present invention is to provide a resin panel for an air conditioner as described in (1) and (2) below. (1). In a resin panel for an air conditioner made by reinforcing a resin panel with a metal reinforcing plate, only the center of the reinforcing plate is screwed and fixed to the resin panel, and other places are provided with elongated holes in the reinforcing plate. A resin panel for an air conditioner, characterized in that the resin panel is screwed so as to be relatively expandable and contractable through the same elongated hole. (2). In the resin panel for an air conditioner according to (1) above, a boss is projected from the resin panel side, and the boss is fitted into an elongated hole of the reinforcing plate so that its upper end projects from the reinforcing plate. A resin panel for an air conditioner, characterized in that a reinforcing plate is screwed.

[0008]

Since the present invention is constructed as described above, it has the following actions.

(1). In the configuration of (1) above, only the center of the reinforcing plate of the resin panel for an air conditioner in which the resin panel is reinforced with the metal reinforcing plate is screwed and fixed to the resin panel, and the other parts are reinforced. The plate is provided with oblong holes, and the reinforcing plate and resin panel are screwed so that they can expand and contract relative to each other through the oblong holes. Even if it expands or contracts, the long hole becomes an "escape" and no wavy deformation occurs.

(2). In the configuration of (2) above, in addition to the configuration of (1) above, a boss is projected from the resin panel side, the boss is projected into the elongated hole of the reinforcing plate, and the upper end of the boss is projected from the reinforcing plate. Since they are fitted and the reinforcing plate is screwed to the boss, even if the tightening force of the screw is excessively large, the boss and the slot can freely move relative to each other, and the effect of preventing wavy deformation against relative thermal strain is further enhanced. Played remarkably.

[0011]

EXAMPLE A resin panel for an air conditioner according to an example of the present invention will be described with reference to FIGS.

The same components as those of the conventional example are designated by the same reference numerals, and the description thereof will be omitted unless necessary.

FIG. 1 is a perspective view of the air conditioner of this embodiment, FIG. 2 is a top view of the reinforcing sheet metal mounting structure used in FIG.
3 is a sectional view taken along the line AA of FIG. 2, and FIG. 4 is a sectional view taken along the line BB of FIG.

In these figures, 1 is a resin panel of an air conditioner, 2 is a reinforcing sheet metal for reinforcing the resin panel 1, and 3 is a screw for fixing the reinforcing sheet metal 2 to the resin panel 1. 4 is a stepped boss protruding from the resin panel 1 side, 5 is a central boss protruding from the resin panel 1 side, and 7 is a length for fixing the reinforcing sheet metal 2 with a screw while allowing displacement due to thermal strain. It's a hole.

Next, the operation of the above configuration will be described. As shown in FIGS. 2 and 4, the central portion of the reinforcing sheet metal 2 is the screw 3
Is fixed to the central boss 5 through a normal round hole (non-oblong hole). On the other hand, on both sides, as shown in FIGS. 2 and 3, the top of the stepped boss 4 penetrates the elongated hole 7 of the reinforcing sheet metal 2 and the top surface thereof slightly protrudes from the upper surface of the reinforcing sheet metal 2 and is screwed. It is fixed by 3.

Therefore, due to the temperature change, the resin panel 1
Even if a relative difference in thermal strain due to a difference in thermal expansion coefficient occurs between the reinforcing sheet metal 2 and the reinforcing sheet metal 2, as compared with the central screw fixing portion shown in FIG.
Since the reinforcing sheet metal 2 slides in the elongated hole 7 with respect to the stepped boss 4 at the screw fixing portions on both sides shown in FIG. 3, the resin panel 1 does not have wavy deformation.

In the present embodiment, the stepped boss 4 prevents the screw 3 from tightening the reinforcing sheet metal 2, and the elongated hole 7 is surely responsive to an extremely small thermal strain. The stepped boss may not be used and the amount of the screw 3 biting into the resin panel 1 may be limited so that the screw 3 does not tighten the reinforcing sheet metal 2. Or, tighten with appropriate torque through a washer made of a material with a small friction coefficient, and
May be slipped when it reaches a thermal stress that causes aesthetically pleasing deformation, and the choice is free within the scope of the object.

As described above, according to this embodiment, the stepped boss 4 is projected from the side of the resin panel 1, the top of the stepped boss 4 is in the elongated hole 7 of the reinforcing sheet metal 2, and the upper end is slightly smaller than that of the reinforcing sheet metal 2. Since the structure in which it is fitted so as to protrude and fixed by the screw 3 is provided on both sides, and the center is configured such that the reinforcing sheet metal 2 and the resin panel 1 are fixed by the screw 3 via the central boss 5 by a normal means. Even if a relative difference occurs due to thermal strain between the resin panel 1 and the reinforcing sheet metal 2, the elongated holes 7 allow the relative difference on both sides around the center, and the resin panel 1 is deformed in a wavy shape or the like. There is an advantage that does not occur.

[0019]

Since the present invention is constructed as described above, it has the following effects.

That is, according to the present invention, the resin panel and the metal reinforcing plate of the resin panel for an air conditioner in which the resin panel is reinforced with the metal reinforcing plate are fixed by screwing at the center, and the other place. Has a long hole in the reinforcing plate, and the resin panel and the metal reinforcing plate can be screwed relative to each other through the long hole so that the resin panel corrugates due to the difference in expansion and contraction even if the temperature changes greatly. There is no deformation and the commercial value is correspondingly improved.

[Brief description of drawings]

FIG. 1 is a perspective view of an air conditioner according to an embodiment of the present invention,

FIG. 2 is a top view of the sheet metal mounting structure of the above embodiment,

FIG. 3 is a sectional view taken along the line AA of FIG.

FIG. 4 is a sectional view taken along the line BB of FIG.

FIG. 5 is a top view of a panel of a conventional air conditioner,

6 is a sectional view taken along the line CC of FIG.

[Explanation of symbols]

 1 Resin Panel 2 Reinforcing Sheet Metal 3 Screws 4 Stepped Boss 5 Center Boss 7 Slot

Claims (2)

[Claims] 1. A resin panel for an air conditioner comprising a resin panel reinforced with a metal reinforcing plate, wherein only the center of the reinforcing plate is screwed and fixed to the resin panel, and the other portions are reinforced. A resin panel for an air conditioner, characterized in that an elongated hole is provided in and a screw is attached so as to be relatively expandable and contractable through the elongated hole. 2. The resin panel for an air conditioner according to claim 1, wherein a boss is projected from the resin panel side, and the boss is fitted into an elongated hole of the reinforcing plate so that its upper end projects from the reinforcing plate. , A panel made of resin for an air conditioner, characterized in that a reinforcing plate is screwed to the boss.