JPH0434357Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a barrel-type resistor applied to air conditioning equipment, and is particularly effective when applied to the interior of a vehicle such as an automobile.

[Conventional technology and problems]

Registers used as air outlets for air conditioners usually deflect the blown air vertically and horizontally.Barrel type resistors have horizontal blades fixed in the barrel, and vertical blades that can be rotated left and right. Adjustment of the deflection of the blown air stream in the vertical direction is achieved by vertically moving the barrel itself, and adjustment of the deflection of the blown air stream in the left and right direction is achieved by the left and right rotation of the vertical blade.

The barrel type resistor shown in Figures 3A and 3B is
This is a conventional example in which a vertical blade is arranged at the front, and a vertical blade 31 is rotatably supported by a vertical pivot shaft 32 in a barrel 1 composed of both side plates 10, 10, an upper plate 12, and a lower plate 13. In addition, the blades are connected by a connecting rod 5 so that they can rotate together. Each vertical blade 31 has a leading edge with a circular arc 3
By protruding at 1' and increasing the area, the directionality of the blowing air is improved.

In this type, the vertical blades were made to protrude to the front, so the blade area increased and the wind directionality became high. However, as is clear from Figure 3B, each blade 31 protrudes from the outlet of the barrel. This would impair the design, and in the case of automobiles, due to internal collision regulations to prevent the formation of dangerous protrusions inside the vehicle, the vertical blades cannot be allowed to protrude too far to the front.

Also, the wind deflection (direction) of this type of resistor
The effect is as shown in FIG. 4A. Between each vertical blade 31, the airflow of arrow A is deflected in a predetermined manner as shown by arrow a, but between the side plate 10 of the barrel and the vertical blade 31, the airflow shown by arrow A As shown in ₁ and a ₂ ,
The deflected flow is displaced by the action of the inner surface of the side plate.

Some registers for automobiles have horizontal blades arranged on the front of the barrel instead of the above-mentioned type in order to prevent internal collisions and improve the design. FIG. 4B shows the deflection of the blown air stream by the cross section of this type of resistor. As is clear from Fig. 4B, in this type, the blade does not protrude from the front opening of the barrel, and the design is not compromised, but the left and right deflection of the wind is still due to the action of the inner surface of the barrel side plate, and at the end, the blade is As shown in ₁ and a ₂ ,
Even between the blades, the deflection of the blades 31 does not match.

[Means and actions for solving problems]

The present invention focuses on the fact that in barrel-type registers, the wind deflection action by the vertical blades is inhibited by the action of the inner surface of the barrel side plates, and by implementing improvement measures on the inner surface of the barrel side plates, it This solves the problem in the example.

That is, as shown in FIGS. 1A and 1B, for example, a chamfered portion 4 having an outwardly expanding shape for guiding the blowout flow is provided on the front of each inner surface of the barrel side plates 11, 11, and the vertical blade 3 When deflected to the maximum, the tip P ₁ of the vertical blade 3 is adjacent to the rear edge P ₂ of the chamfered portion, and the vertical blade 3 and the chamfered portion 4 are configured to be flush with each other.

Therefore, when the vertical blade 3 is deflected to the maximum as shown in FIG. 1B, the vertical blade 3 and the chamfered portion 4 are flush and adjacent to each other, so that the blowing air flow a near the barrel side plate is disturbed. It blows out smoothly as a straight line, following the deflection angle of the vertical blades.

〔Example〕

(Example 1) Both side plates 11 and upper plate 12 are made of the same material as the conventional example.
A barrel 1 is constructed from a lower plate 13, and a rotation support shaft 1' is provided on the outer surface of both side plates. Then, two horizontal blades 2 are attached to the front of the barrel at equal intervals, and three groups of vertical blades are attached to the rear of the horizontal blade 2. Rotation adjustment is adjusted in the left and right directions so that the maximum deflection angle α is 30°. installed possible. Furthermore, the front portions of the inner surfaces of both side plates were chamfered with the width W of the lateral blade 2 so that the expansion angle β was 30°, thereby forming a chamfered portion 4 in an expanded shape.

As shown in Fig. 1B, the obtained register shows that even when straight air A from the rear is deflected at the maximum deflection angle α of the three groups of vertical blades, the expansion angle β of the chamfered portion 4 at the front of the inner surface of the side plate exists. Because of this, and because the tip P ₁ of the vertical blade 3 is adjacent to the trailing edge P ₂ of the chamfer, and the vertical blade and the chamfer are connected flush, the blowing air flow a at the end on the register side is is side plate 1
It was possible to guide the wind as a smooth straight line up to the front edge of register 1 according to the deflection angle, and the wind at the side edges of the register could be guided as rectification as well as the wind at the center. Therefore, since the chamfered portion 4 guides the blowing air directly with the vertical blade 3, the deflection angle of the wind comparable to that of the conventional product could be achieved with a shorter vertical blade.

When the 3 groups of vertical blades are in the neutral position (no deflection), the supply air flow A is not displaced to the extent that it is supported by the expanded surface of the chamfered portion 4 even between the barrel side plate 11 and the blades 3. vertical blade 3
The air was blown out as a rectification between the inner plane of the side plate and the inner plane of the side plate.

(Example 2) Example 1 except that as shown in Figures 2A and 2B, the front and back arrangement of the vertical blade 3 and the horizontal blade were changed, and the thickness t of the leading edge of the side plate was made equal to the thickness of the leading edge of the vertical blade 3. configured the same as.

The obtained register is the same as Example 1 except that when the three groups of vertical fins are placed in the neutral position as shown in Figure 2B, the side plates also look like vertical blades and a novel and functional design effect is obtained. Wind directionality was obtained.

[Effect of idea]

The chamfered portions on the front inner surfaces of both sides of the barrel make it easier for the airflow to deflect to the left and right.
Good wind direction.

It is possible to achieve the same wind deflection angle as conventional products with shorter blades, making it possible to make the register thinner.

[Brief explanation of the drawing]

FIG. 1A is a schematic perspective view of the first embodiment of the present invention, and FIG. 1B is a cross-sectional view of FIG. 1A for explaining the operation. FIG. 2A is a schematic perspective view of a second embodiment of the present invention, and FIG. 2B is a cross-sectional schematic view of FIG. 2A. FIG. 3A is a schematic perspective view of a conventional example, and FIG. 3B is a schematic longitudinal sectional view of FIG. 3A.
FIG. 4A and FIG. 4B are explanatory diagrams of the operation of the conventional example, respectively. 1... Barrel, 11... Barrel side plate, 12...
Barrel upper plate, 13... Barrel lower plate, 2... Horizontal blade, 3... Vertical blade, 4... Chamfered portion.

Claims (1)

[Claims for Utility Model Registration] 1. A chamfered portion 4 is provided at the front of the inner surface of the barrel side plate 11 for expanding the blowout flow, and when the vertical blade 3 is at maximum deflection, the tip P ₁ of the vertical blade is located behind the chamfered portion. A barrel type resistor that is adjacent to the edge P ₂ and configured so that the vertical blade 3 and the chamfered portion 4 are flush with each other. 2 The thickness t of the front edge of the chamfered part of the barrel side plate 11 is
The register according to claim 1, which is equal to the leading edge thickness of the longitudinal blade 3.