JPS60169043A - Ventilator grill - Google Patents

Abstract

PURPOSE:To allow to surely feed the air flow to the outside of a blast tube in response to the direction of louvers by a structure wherein a duct, the opening direction of an opening part of which is changed with the rocking motion of the louvers, is provided at the opening part in the windward side end part of the louvers locating at both ends of a plurality of the louvers. CONSTITUTION:Horizontal louvers 10 are rockingly journaled in the inside of a blast tube 11 by means of horizontal pivoting shafts 10a and a plurality of the horizontal louvers 10 are interlockingly constituted each other. Further, a plurality of vertical louvers 12 are pivotally journaled in the inside of the blast tube 11 on the windward side from the position of the horizontal louvers 10. In addition, the opening part of movable duct part 13 is connected by means of shafts 12b to the windward side end part of the vertical louvers 12 in order to constitute to let the movable duct part 13 to interlockingly move a plurality of the vertical louvers 12.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a ventilator grill that guides the air flow inside the blast tube to the outside of the blast tube depending on the direction of the louver rows.

[Description of Prior Art] As a conventional ventilator grill, there is one shown in FIG. 1, for example. Ventilator grill 1 shown in the same figure
(Well, it was disclosed in Utility Model Publication No. 1983-27447 [Automatic Military Ventilator]
Five louvers forming the louver row 3 provided inside -3a
Among them, the one that was able to be removed from the center louver 3a =! ri4
By moving the 5 louvers 3 through the link 5
The direction of a is changed uniformly. However,
In the figure, the louver 3a at the right end is provided with the intention of preventing the air b1 flowing out along the side wall of the blower tube 2 from being disturbed in the MiJ direction. 1111 It comes into contact with the wall and blocks the air flow. For this reason, airflow stagnation is formed between the blower tube main body 2 and the louver 3a, and backward disturbance due to backflow of the airflow is likely to occur.
Therefore, the air υ1 guided to the louver row 3! , which increases the energy loss and substantially increases the ventilation resistance, which rarely leads to a decrease in the amount of air blown out2.

[Purpose of the invention]

This idea was created by focusing on the above-mentioned circumstances.
To provide a ventilator grill that can reliably guide the flow of air inside a blower tube to the outside of the blower tube according to the direction of a row of louvers without causing a decrease in the amount of air blown out.

[Structure of the invention]

In order to achieve this object, the present invention provides a duct in which an opening L" portion is connected to the leeward end of the louver at both ends of a plurality of louvers, and the opening direction of the opening changes as the louver swings. The gist of this document is that it has been established.

DESCRIPTION OF EMBODIMENTS The present invention will be described below with reference to FIGS. 2 to 4. FIG. 2 is a main part showing an embodiment of the ventilator grill of the present invention, and FIG. 3 is an enlarged cross-sectional view along line X-X of the ventilator grill of FIG.
FIG. 4 is a plan view of essential parts for explaining the function of the ventilator grill of FIG. 2.

First, the configuration will be explained. In FIGS. 2 to 4, the horizontal louver 10 is rotatably supported inside the blower tube 11 on a horizontal rotation axis 10a, and each of the horizontal louvers 10, which is made up of a plurality of sheets, is interlocked with each other. It is configured. Then, depending on the direction of the horizontal louver lo, the air blowout is fully adjusted in the vertical direction. Further, inside the blower tube 11, on the windward side of the horizontal louver 1o, a plurality of vertical loopers 12 are pivotably supported on the blower tube 11 so as to be able to swing freely by a vertical rotary shaft 12a. has been done. The opening of a movable duct i13 is connected to the windward end of this vertical looper 12 by a shaft 121), and three vertical loopers 12 are configured to be interlocked with this hJNjJ duct portion 13. And - the horizontal dimension of the opening of this movable duct portion 13 is the dimension IIJJ of the two vertical loopers 12 at both ends of the plurality of louvers 12! X: I'3J foot, vertical looper 12 on both ends
The windward end part 111 of the movable duct part 13 is arranged so as to match the edge of the movable duct part 13. The windward end of the movable duct part 13 is connected to the opening of the fixed shock part 15 via a flexible pipe part 14 made of a bellows mechanism.

Furthermore, the vertical looper 1 located at the center of the plurality of vertical loopers 12
A horizontally movable operating knob 16 is connected to the leeward end of the vertical looper 12, and the direction of the vertical looper 12 is adjusted by moving the operating knob 6 to the right. Depending on the direction of this vertical looper 12, the left and right direction of the air blowout' (
ll-adjust.

Next, the effect 'f3' will be explained. By moving the operation knob 16 left and right, the direction of the vertical looper 12 can be arbitrarily set. As the vertical louver 2 swings, the flexible tube section 14 expands and contracts, interlocking with the movable duct section 13Fi and the vertical louver 12.

Since the horizontal edge of the opening of the movable duct part 13 coincides with the windward end of the vertical looper 12 that is placed at both ends of the plurality of vertical loopers 12, 91171 sheets (the two at both ends of the 0M louver 12) Air is blown out through the opening of the movable duct section 13 between the two vertical loopers 12.However, this has been a problem with conventional ventilator grills of this type.
The stagnation of the air flow that occurs between the vertical loopers 12 at both ends of the plurality of vertical loopers 12 and the inner wall of the blower tube 11 is completely eliminated. Therefore, there is virtually no change in ventilation resistance depending on the orientation of the vertical looper 12, and the amount of air blown out can be maintained at a constant level. Furthermore, the direction of air blowing out from the blow tube 1 and the direction of the vertical looper 12 are exactly the same.

In addition, if the flexible pipe section 14 is configured with a bellows mechanism, it is possible not only to allow the entire lateral movement of the movable duct section 13, but also to allow the position of the opening of the fixed duct section 15 in the air flow direction. be able to.

[Effect of departure]

As described above, according to the present invention, all the air in the blow tube is rectified by the louver and blown out around the louver, so that the louver at the end of the louver row, the blower JM, and the door of the tube There is no leakage of airflow between walls or the formation of stagnation that impairs the energy of the airflow.
The air flow deflected by the louver array reduces the ventilation resistance before and after the deflection, and moreover, a uniform deflection direction is obtained, making it possible to ensure sufficient airflow*, especially for automotive applications. It is suitable for controlling airflow in delicate spaces such as narrow vehicle interiors, and has excellent effects.

[Brief explanation of the drawing]

Figure i441 is a plan view showing a conventional ventilator grill for automobiles, Figure 2 is a plan view of main parts showing the structure of an embodiment of the ventilator grill of the present invention, and Figure 3 is a
FIG. 4 is an enlarged cross-sectional view of the ventilator grille shown in FIG. In the figure, 11...Blower tube, 10...Horizontal louver,
12... Vertical louver, 16... Operation knob, 13...
- Movable duct part, 14... Flexible pipe part, 15... Fixed duct part. Figure 1 Figure 2

Claims (1)

[Claims] Direction of air flow in the blow tube 'fr: A louver row having a plurality of louvers provided at the swinging point to be adjusted, and a direction in which all the air flows into the blow tube and the roots (of the louvers at both ends of the row). 11-1 A ventilator grill characterized by having a duct in which an opening is connected to an end on the warrior side.'11-1 The opening direction of the opening 11 changes as the louver row swings.