JPH0760014B2 - Air conditioning grill - Google Patents

Description

TECHNICAL FIELD The present invention relates to an air conditioning grill for air conditioning the interior of a house or the like.

[Conventional technology]

BACKGROUND ART Conventionally, an air-conditioning grill that automatically deflects the wind direction by an electric motor is known. As shown in FIGS. 8 and 9, in this air conditioning grill, a part of the side edge of the rod 31 that reciprocates by being connected to a motor (not shown) has a rectangular shape that is long in the front-back direction (vertical direction in the figure). A protruding portion 32 is formed so as to protrude. In the same projecting portion 32, a rectangular locking hole 33 is also provided.

A substantially elliptical cam 34 is arranged above the rod 31, and a cylindrical locking projection 35 is provided on the cam 34 so as to project therefrom.
The locking projection 35 is locked in the locking hole 33 of the rod 31.

Then, when the rod 31 moves, the locking projection 35 of the cam 34 locked in the locking hole 33 of the rod 31 moves in the same direction,
The cam 34 rotates. The wind direction deflecting plate (not shown) is deflected.

[Problems to be Solved by the Invention]

However, in the above-mentioned conventional air-conditioning grill, the locking hole 33 provided in the projecting portion 32 of the rod 31 that reciprocates by the electric motor presses the locking projection 35 of the cam 34 to rotate the cam 34. In the state in which the arm distance of the moment is shown in FIG. 8, it is as large as l ₁ , but the rod 31 moves to the 9th position.
In the state shown in the figure, it becomes as small as l ₂ , so that the force of the rod 31 pressing the cam 34 and rotating the cam 34 is the rod.
Since the rod 31 becomes gradually smaller as it moves, a load is applied to the rod 31 and the cam 34 may not operate smoothly.

An object of the present invention is to provide an air conditioning grill that can smoothly rotate a cam without increasing the operating force of a rod.

[Means for Solving the Problems]

In order to solve the above-mentioned problems, in the present invention, a plurality of bendable wind direction deflecting plates are arranged in the main body, one end side of the same wind direction deflecting plate is rotatably supported on the main body, and the other end side is A cam member for connecting with a connecting member, the connecting member being movably formed by a link rotatably supported on the main body, and for rotating the link outside the main body on which the link is supported. And a rod that reciprocates, and a pair of locking protrusions that are separated from each other by a predetermined angle about the center of rotation of the cam member. The rod includes the cam member when the rod reciprocates. In order to rotate, the means for providing the engaging portion with which each of the pair of locking projections can be engaged is adopted.

[Action]

By adopting the above means, when the rod reciprocates, the engaging portion provided on the rod is guided and moved by the pair of locking projections provided on the cam, and the moving amount of the rod becomes large. The engaging part of the rod presses one of the locking protrusions of the cam to rotate the cam, and when the rod moves in the opposite direction, the engaging part presses the other locking protrusion of the cam. Since the cam is rotated by the lever, a large force is not applied to the rod regardless of the movement amount of the rod, and the cam smoothly rotates. Then, the link is rotated based on the rotation of the cam, and the wind direction deflecting plate is further deflected.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS.

As shown in FIG. 1, a plurality of bendable wind direction deflecting plates 2 are disposed on the front side of the lower portion inside the main body 1 of the air conditioning grill. The plural wind direction deflecting plates 2 are rigid parts on the front side and the rear side.
3a and 3b and a bendable soft part 4 between them. Both rigid parts 3a and 3b are made of a hard material such as polypropylene or ABS resin, and the soft part 4 is made of a soft material such as elastomer or rubber. ing.

A cylindrical portion 5 having a support hole 5a is provided at the upper end of the front rigid portion 3a of the wind direction deflecting plate 2, and the shaft of the main body 1 (not shown) is supported by the support hole 5a to rotate the front rigid portion 3a. The rotary shaft 6 is provided at the lower end so as to project downward. The rear rigid portion 3b is formed in a plate shape, the lower portion thereof has a shape bulging rearward, and a notch 7 having a rear portion cut into an elliptical shape is formed at the lower end surface thereof.

A connecting plate 8 serving as a connecting member for connecting a plurality of wind direction deflecting plates 2 is arranged behind the wind direction deflecting plate 2 (on the right side in FIG. 1), and is attached to the connecting plate 8 at predetermined intervals in an annular shape. An annular mounting portion 9 having a groove 9a is integrally formed. Some of the annular mounting portions 9 are formed so as to project to the front side, and a locking hole 9b is provided at the front end portion thereof in a transparent manner. The annular mounting portion 9 of the connecting plate 8 is accommodated from below in the notch 7 of the wind direction deflecting plate 2, and the rear rigid portion 3b of the upper end of the notch 7 is held in the mounting groove 9a. As a result, the rear rigid portions 3b of the plurality of wind direction deflecting plates 2 are connected to the connecting plate 8.

Below the wind direction deflection plate 2, a link extending in the front-rear direction
An air-conditioning grill 10 is rotatably attached to a plate-shaped main body 1 at its front end. A cylindrical projection 10b having a circular hole 10a opened upward is provided in a protruding manner at the upper part of the front end of the link 10, and the rotary shaft 6 of the front side rigid portion 3a of the wind direction deflecting plate 2 is provided. It is rotatably fitted in, and a cylindrical projection 10d provided with a rectangular engaging hole 10c opening downward is provided at a lower portion of the front end. Further, a protrusion 10e extending upward is projected at the rear end portion, and is rotatably fitted into the locking hole 9b of the annular mounting portion 9 of the connecting plate 8.

Below the body 1, a plate-shaped rod 11 extending in the left-right direction is arranged. A trapezoidal protruding portion 11a is formed on the front side edge of the rod 11, and a V-shaped guide hole 12 with an open rear side is formed through the protruding portion 11a. .

A fan-shaped cam 13 is arranged above the rod 11, and a square-pillar-shaped engaging projection 13 is provided upward at a main position of the fan.
b is projected and is fitted in the engaging hole 10c of the link. Further, the cam 13 has a cylindrical locking protrusion 13 at a position spaced apart from each other by a predetermined angle with respect to the rotation center thereof.
Two c's are formed so that both locking protrusions 13c are guided in the guide hole 12 of the rod 11.

Further, at the right end of the rod 11, a projecting portion 14 formed in a rectangular plate shape that is long in the front-rear direction is extended, and the projecting portion 14 is provided with a long hole 14a that is long in the front-rear direction. .

As shown in FIG. 2, a motor 15 is provided at the end of the main body 1.
Is fixed by inserting a screw into the screw insertion hole 16, and a rectangular plate-shaped rotating body 17 is formed on the lower surface of the motor 15 so as to project. A disc-shaped connecting member 18 is arranged below the motor 15, and a cylindrical body 19 having a recess 19a into which the rotating body 17 is fitted is provided upward in the center of the upper surface of the connecting member 18. Is projected.

Further, on the outer peripheral side of the lower surface of the connecting member 18, a pair of semicircular support members 20 are formed so as to project downward, and a taper portion 20a whose base end side is expanded is formed at the tip end thereof. There is. A cylindrical link member 21 is rotatably fitted to the outer peripheral portions of the same pair of support members 20 from below, and the taper portion 20a of the support member 20 has a diameter-prolonged base end portion that does not come off. Has become.

The link member 21 is loosely fitted in the elongated hole 14a of the protruding portion 14 of the rod 11, the ring member 21 rotates based on the rotation of the motor 15, and the ring member 21 moves back and forth in the elongated hole 14a. The rod 11 can be moved left and right by moving to.

The operation and effect of the air-conditioning grill configured as described above will be described.

As shown in FIG. 2, when a switch (not shown) is pressed, the motor 15 on the side of the main body 1 of the air conditioning grill is rotationally driven, and the rotating body 17 on the lower surface thereof is rotated. Since the rotating body 17 is fitted and fixed in the concave portion 19a of the cylindrical body 19 on the upper surface of the connecting member 18, the connecting member 18 rotates, and the support member 20 to which the ring member 21 on the lower surface is fitted is also rotated. To do. Since this ring member 21 is movably loosely fitted in the elongated hole 14a of the projecting portion 14 at the end of the rod 11, the ring member 21 rotates while the elongated hole 14a rotates.
While reciprocating in 14a, the rod 11 is reciprocating in the left-right direction.

As shown in FIG. 1, when the rod 11 moves in the left-right direction, a pair of locking cams 13 are locked in V-shaped guide holes 12 that are transparently provided in the bulging portion 11a of the rod 11. When the protrusion 13c moves in the left-right direction, the fan-shaped cam 13 rotates about its essential part. Here, in the state shown in FIG. 3, the guide hole 12 of the rod 11 presses both locking protrusions 13c of the cam 13 at the arm distance of the moment of force, that is, the rotation center of the cam 13 and the locking protrusion 13c. The distance L _{1 in} the front-back direction is large. Next, when the rod 11 moves to the state shown in FIG. 4, the distance of the moment arm with respect to the right locking projection 13c becomes short, but the distance L ₂ of the moment arm with respect to the left locking projection 13c becomes large. Furthermore, when the rod 11 moves to the rightmost side and reaches the state shown in FIG.
Is rotated by 60 degrees), the distance of the moment arm with respect to the right locking projection 13c becomes zero, but the distance L ₃ of the moment arm with respect to the left locking projection 13c is still kept large. Therefore, regardless of the position of the rod 11, the pressing force on the cam 13 is always kept high.

By the rotation of the cam 13, the engagement protrusion 13b of the cam 13 rotates,
Since the engaging protrusion 13b is fitted and locked in the engaging hole 10c of the link 10, the link 10 rotates about its front end. Then, since the projection 10e at the rear end of the link 10 is fitted and locked in the locking hole 9b of the annular mounting portion 9 of the connecting plate 8, the connecting plate 8 is moved left and right by the rotation of the projection 10e of the link 10. Move to. Therefore, since the annular mounting portion 9 of the connecting plate 8 is attached to the notch 7 in the lower portion of the rear rigid portion 3b of the wind direction deflecting plate 2, the rear rigid portion of the plural wind direction deflecting plates 2 is attached.
All 3b move in the same direction, and the soft portion 4 of the wind direction deflecting plate 2 swells and curves in a predetermined direction.

In this way, the wind introduced from the rear of the air-conditioning grill is deflected in a predetermined direction along the curved soft portion 4 of the wind direction deflecting plate 2 and blows out from the outlet 22 at the front end shown in FIG.

As described above, in the air-conditioning grill of this embodiment, the V-shaped guide hole 12 for guiding the locking projection 13c of the cam 13 is provided in the rod 11 which moves to the left and right, so that the rod 11 can be moved to either the left or right. The cam 13 can be smoothly rotated without increasing the operating force of the rod 11 even if the cam 13 is largely moved in the direction.

The present invention is not limited to the above-described embodiments, but may be configured as follows, for example, within a range not departing from the spirit of the invention.

(1) As shown in FIG. 7, the shape of the guide holes 12 can be a pair of adjacent guide holes 12a having a concave shape.

(2) The shape such as the degree of curvature of the V-shaped guide hole 12 and the shape of the cam 13 in the above embodiment can be appropriately changed according to the purpose of use, and the air-conditioning grill of the present invention can be used in the interior of a house. In addition to the application, it can also be used for vehicles such as being mounted on an instrument panel of an automobile.

〔The invention's effect〕

The air-conditioning grill of the present invention has an effect that the cam can be smoothly rotated without increasing the operating force of the rod regardless of the movement amount of the rod.

[Brief description of drawings]

1 to 6 are views showing an embodiment of the present invention, FIG. 1 is an exploded perspective view of an essential part of an air conditioning grill, FIG. 2 is an exploded perspective view showing a driving part of the air conditioning grill, and FIG. 5 is a partial bottom view showing an engagement state between the guide hole of the rod and the locking projection of the cam, and FIG. 6 is a perspective view showing the whole air conditioning grill, FIG.
The figure shows a bottom view of a guide hole of a rod showing another example of the present invention,
FIG. 9 and FIG. 9 are bottom views for explaining the operation of the conventional air conditioning grill. DESCRIPTION OF SYMBOLS 1 ... Main body, 2 ... Wind direction deflection plate, 8 ... Connection plate as a connection member, 10 ... Link, 11 ... Rod, 12 ... Guide hole, 13 ... Cam,
13c… Locking protrusion

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Hidenori Ueda No. 1 Nagahata, Ochiai, Kasuga-mura, Nishikasugai-gun, Aichi Toyota Gosei Co., Ltd. (56) References

Claims (1)

[Claims] 1. A plurality of bendable wind direction deflecting plates (2) are arranged in a main body (1), and one end side of the wind direction deflecting plates (2) is rotatably supported by the main body (1). , The other end is connected by a connecting member (8), and the connecting member (8) is movably formed by a link (10) rotatably supported by the main body (1), and the link (10) is formed. A cam member (13) for rotating the link (10) and a reciprocating rod (11) are provided outside the main body (1) on which
Further, a pair of locking projections (13c) spaced apart from each other by a predetermined angle around the rotation center of the cam member (13) is provided, and the rod (11) is provided with the cam member when the rod (11) reciprocates. An air-conditioning grill, characterized in that engaging parts (12, 12a) with which the pair of locking projections (13c) can be engaged are provided in order to rotate (13).