JPH03204546A - Grille for air conditioner - Google Patents

Abstract

PURPOSE:To enable a cam smoothly to work without increasing the working force of a rod by a method wherein the cam to work a link and the rod to work the cam are arranged outward a body on which the link is mounted, a pair of engaging projections are provided on the cam and a guide hole to guide the engaging projections of the cam is provided in the rod 11. CONSTITUTION:When a rod 11 moves in the horizontal direction, a pair of engaging projections 13c of a cam 13 which are engaged with a V-shaped guide hole 12 pierced in an expanded part 11a of the rod 11 moves in the horizontal direction to work a cam 13. When the cam 13 works, another engaging projection 13b worves and further a link 10 moves. As a projection 10c at the rear end of the link 10 is inserted into and engaged with an engaging hole 9 of a connection plate 8, the plate 8 moves in the horizontal direction. In this constitution, as the V-shaped guide hole 12 to guide the engaging projection 13c of the cam 13 is provided in the rod 11 which moves in the horizontal direction, even if the rod 11 moves much and anyway in the horizontal direction, the cam 13 can be work smoothly without increasing the working force of the rod 11.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] 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, air conditioning grilles that automatically deflect the wind direction using an electric motor have been known. As shown in Figures 8 and 9,
In this air-conditioning grill, a protrusion 32 formed in a long rectangular shape in the front-rear direction (vertical direction in the figure) is provided on a part of the side edge of a rod 31 that is connected to a motor (not shown) and reciprocates. It is being A similarly rectangular locking hole 33 is transparently provided in the protrusion 32 .

Further, above the rod 31, a substantially elliptical cam 34 is provided.
A cylindrical locking protrusion 35 is provided on the cam 34, and the locking protrusion 35 engages with the locking hole 33 of the rod 31.
It is designed to be locked inside.

Then, when the rod 31 moves, the locking protrusion 35 of the cam 34 locked in the locking hole 33 of the rod 31 moves in the same direction, and the cam 34 rotates.

A wind direction deflecting plate (not shown) is adapted to deflect the air.

[Problem to be solved by the invention]

However, in the conventional air conditioning grill described above, the locking hole 33 provided in the protrusion 32 of the rod 31 that is reciprocated by the electric motor presses the locking protrusion 35 of the cam 34 to rotate the cam 34. In the state shown in Fig. 7, the arm distance of the moment is large, β1, but rod 3
In the state shown in FIG. 8 in which the rod 1 has moved, the size is 12, and therefore the rod 31 or the cam 34 are pressed and the cam 3 is moved.
As the force for rotating the rod 31 gradually decreases as the rod 31 moves, a load is applied to the rod 31, causing the cams 3 and 1 to rotate.
However, there was a problem in that there was a risk that the system would not operate smoothly.

An object of the present invention is to provide an air conditioning grill that allows a cam to be smoothly rotated without increasing the operating force of the lot.

[Means to solve the problem]

In order to solve the above problems, in the present invention, a plurality of bendable wind deflection plates are arranged inside the main body, one end of the wind deflection plate is rotatably supported by the main body, and the other end is supported rotatably on the main body. a cam connected by a connecting member, the connecting member being movable by a link rotatably supported by the main body, and for rotating the link outward of the main body to which the link is attached; A means is adopted in which a rod is provided for rotating the cam, a pair of locking protrusions are protruded from the cam, and a guide hole is provided in the rod for guiding the locking protrusions of the cam. are doing.

[Effect]

By adopting the above means, when the lot moves, a pair of locking protrusions provided on the cam are guided and moved within the guide hole formed in the rod, and even if the lot moves large, the loft can be maintained. Press the locking protrusion on either the guide hole or the cam to rotate the cam, and if the rod moves in the opposite direction, press the locking protrusion on the guide hole or the other cam to rotate the cam. Therefore, no large force is applied to the rod regardless of the amount of movement of the rod, and the cam rotates smoothly. Then, the link rotates based on the rotation of the cam,
Furthermore, the wind direction deflection plate deflects.

〔Example〕

An embodiment embodying the present invention will be described below with reference to FIGS. 1 to 6.

As shown in FIG. 1, a plurality of bendable wind direction deflecting plates 2 are disposed on the front side of the lower part of the main body 1 of the air conditioning grill. The same plurality of wind deflection plates 2 are composed of front and rear rigid parts 3a, 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 rubber.

A support hole 5 is provided at the upper end of the front rigid part 3a of the wind deflection plate 2.
A cylindrical part 5 having a diameter of 1 is provided, and the front rigid part 3a can be rotated by being supported by a shaft of the main body 1 (not shown) or a support hole 5a, and a rotation shaft 6 is provided at the lower end thereof. It is installed protruding into. The rear rigid part 3b is formed into a plate shape, and has a shape in which its lower part bulges rearward, and an elliptical notch 7 is formed in the lower end surface of the rear rigid part 3b.

A connecting plate 8 as a connecting member connecting a plurality of wind deflecting plates 2 is arranged behind the wind deflecting plate 2 (right side in Fig. 1), and annular attachments are attached to the connecting plate 8 at predetermined intervals. An annular attachment portion 9 having a groove 9a is integrally formed. Some of the annular attachment portions 9 are formed to protrude toward the front side, and a locking hole 9b is transparently provided at the front end thereof. The notch 7 of the wind direction deflection plate 2 is provided with an annular attachment portion 9 of the connecting plate 8.
is housed from below and the rear rigid portion 3b of the upper end of the notch 7 is held in the mounting groove 9a, thereby connecting the rear rigid portions 3b of the plurality of wind direction deflection plates 2 to the connecting plate 8. It is now possible to do so.

Below the wind deflection plate 2, a link 10 extending in the front-rear direction is rotatably attached at its front end to the plate-shaped main body 1 of the air conditioning grill. The upper part of the front end of the link 10 has a circular hole 10a that opens upward.
A cylindrical protrusion 10b with a cylindrical projection 10b is provided in a protruding manner, into which the rotation shaft 6 of the front rigid part 3a of the wind direction deflection plate 2 is rotatably fitted. A cylindrical protrusion 10d having a rectangular engagement hole 10c opened toward the side.
is installed protrudingly. Further, a projection 10e extending upward is projected from the rear end portion, and is rotatably fitted into a locking hole 9b of an annular attachment portion 9 of the connecting plate 8.

A rod 11 formed in a plate shape extending in the left-right direction is disposed below the main body 1. A trapezoidal protruding bulge 11a is formed on the front edge of the rod 11,
A guide hole 12 formed in a V-shape with an open rear side is transparently provided in the bulged portion 11a.

A fan-shaped cam 13 is disposed below the rotor 11, and a cylindrical projection 1 is formed upward at the key position of the fan.
3a protrudes from the upper end surface of the protrusion 13a, and a quadrangular prism-shaped engagement protrusion 13b protrudes from the engagement hole 1 of the link IO.
It is designed to be inserted into 0c. Furthermore, cylindrical locking projections 13c are formed protrudingly at two locations on the rear side of the cam 13, and both locking projections 13c are guided within the guide hole 12 of the rod 11.

Further, a protrusion 14 formed in the shape of a rectangular plate that is long in the front-rear direction extends from the right end of the rod 11, and a long hole 14a that is long in the front-rear direction is provided in the protrusion 14. .

As shown in FIG. 2, a motor 1 is attached to the end of the main body l.
5 is fixed by inserting a screw into the screw insertion hole 16, and a rectangular plate-shaped rotating body 17 is formed protruding from the lower surface of the motor 15. A disk-shaped connecting member 18 is disposed below the motor 15, and a cylindrical body 19 having a recess 19a into which the rotating body 17 is fitted is arranged in the center of the upper surface of the connecting member 18, and extends upward. It is installed protrudingly.

Furthermore, a pair of semicircular support members 20 are formed protruding downward from the outer peripheral side of the lower surface of the connecting member 18, and a tapered portion 20a whose diameter is enlarged from the proximal end is formed at the distal end thereof. ing. And, on the outer periphery of the same pair of support members 20,
A cylindrical ring member 21 is rotatably fitted onto the outside from below, and has a structure that prevents it from coming off at the enlarged diameter base end of the tapered portion 20a of the support member 20.

Then, the ring member 21 is attached to the protrusion 1 of the rod 11.
The ring member 21 rotates based on the rotation of the motor 15, and as the ring member 21 moves back and forth within the long hole 14a, the rod 11
can be moved left and right.

The functions and effects of the air conditioning grill configured as described above will be explained.

As shown in FIG. 2, when a switch (not shown) is pressed, the motor 15 on the side of the main body of the air conditioner is driven to rotate.
The rotating body 17 on the lower surface thereof rotates.

The rotary body 17 is connected to the recess 1 of the cylindrical body 19 on the upper surface of the connecting member 18.
9a, the connecting member 18 rotates, and the ring member 21 on the lower surface of the supporting member 2 is fitted onto the supporting member 2.
Rotates in the same way as 0. This ring member 21 is the rod 11
Since the ring member 21 is movably and loosely fitted into the elongated hole 14a of the end protrusion 14, the ring member 21 rotates while fitting into the elongated hole 14a.
．． While reciprocating within 4a, the rod 11 is reciprocated in the left and right direction.

As shown in FIG. 1, when the rod 11 moves in the left-right direction, a pair of cams 13 that are locked in a V-shaped guide hole 12 that is transparently provided in the bulging portion 11a of the rod 11 are locked. By moving the protrusion 13c in the left-right direction, the fan-shaped cam 13 rotates around its key point. here,
In the state shown in FIG. 3, the guide hole 12 of the rod 11
is the distance between the arm of the moment of the force pressing the locking protrusion 13c of the cam 13, that is, the rotation center of the cam 13 and the locking protrusion 13.
The distance L1 in the front-rear direction with respect to c is large. Next, when the rod 11 moves to the state shown in FIG. 4, the distance of the moment arm to the right locking protrusion 13c becomes shorter, but the distance L2 of the moment arm to the left locking protrusion 13c becomes larger. . Furthermore, when the rod 11 moves to the rightmost side and reaches the state shown in FIG. 5 (when the cam 13 rotates 60 degrees), the distance of the moment arm to the right locking protrusion 13c becomes zero. The locking protrusion 1 on the left side
The moment arm distance L3 relative to 3c remains large. Therefore, regardless of the position of the rad II, the pressing force against the cam 13 is always kept high.

The rotation of the cam 13 causes the engagement protrusion 13b of the cam 13 to rotate, and since the engagement protrusion 13b is fitted and locked into the engagement hole 10c of the link 10, the link 10 locks its front end. Rotate around the center. Then, the protrusion 1 on the rear end of the link 10
Since the connecting plate 8 is fitted into the locking hole 9b of the annular attachment portion 9 of the connecting plate 8 and is locked, the connecting plate 8 moves from side to side when the projection 10e of the link 10 rotates. Therefore, since the annular attachment part 9 of the connecting plate 8 is attached to the notch 7 at the bottom of the rear rigid part 3b of the plurality of wind deflection plates 2, the rear rigid part of the plurality of wind deflection plates 2 3b all move in the same direction, and the soft portion 4 of the wind deflection plate 2 swells and curves in a predetermined direction.

In this way, the wind introduced from the rear of the air conditioning grille is deflected in a predetermined direction along the curved soft part 4 of the wind deflector plate 2, and is blown 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 protrusion 13c of the cam 13 is provided in the rod 11 that moves from side to side. Even if the cam 13 moves greatly in the direction shown in FIG.

The present invention is not limited to the above-mentioned embodiments (for example, it may be configured as follows without departing from the spirit of the invention.

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

(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 changed as appropriate depending on the purpose of use. In addition to this, it can also be used for vehicles such as mounting on the instrument panel of a car.

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

[Brief explanation of drawings]

1 to 6 are views showing embodiments of the present invention, in which FIG. 1 is an exploded perspective view of essential parts of an air conditioning grill, FIG. 2 is an exploded perspective view of a driving part of an air conditioning grill, and FIG. 5 is a partial bottom view showing the state of engagement between the guide hole of the rod and the locking protrusion of the cam, FIG. 6 is a perspective view showing the entire air conditioning grille, and FIG.
The figure is a bottom view of a rod guide hole showing another example of the present invention, No. 8
9 and 9 are bottom views illustrating the function of a conventional air conditioning grill.

Claims (1)

[Claims] 1. Multiple bendable wind deflection plates (2) inside the main body (1)
is arranged, and one end side of the air deflection plate (2) is connected to the main body (1).
), the other end is connected by a connecting member (8), and the connecting member (8) is movable by a link (10) rotatably supported by the main body (1). and a cam member (10) for rotating the link (10) outward of the main body (1) on which the link (10) is supported.
13) and a rod (11) for rotating the cam member (13), and a pair of locking protrusions (13c) are provided protruding from the cam member (13), and the rod (11) ) is provided with a guide hole (12) for guiding the locking protrusion (13c) of the cam member (13).