JPH09263123A - Ventilator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce costs by miniaturizing a ventilator, increasing the degree of freedom of design and reducing the number of part items. SOLUTION: One side of a damper 13 comprising each end of a plurality of split dampers 14 and 15 rotatably connected is rotatably held in a ventilator case 12, and another side of the damper 13 is moved along the guide groove formed in the side wall of the ventilator case 12 by arranging an operation lever on another side of the damper 13. Therefore, the damper 13 can be opened and closed due to circular arc motion. If with the damper 13 split and folded, each damper 13 moves in a circular arc, the damper 13 can be miniaturized, and the longitudinal length of the shut section 6 of the ventilator case 12 can be shortened. By this constitution, the damper 13 can be made in compact miniaturized, increasing the degree of freedom of design. Since the damper 13 is made to enable circular are motion from circular motion. some part items for links, etc., become unnecessary.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a ventilator for an automobile air system.

[0002]

2. Description of the Related Art An instrument panel of a vehicle compartment is provided with a ventilator 1 for blowing conditioned air as shown in FIGS. A louver portion 4 is provided on the ventilator case 2 of the ventilator 1 on the side of the air outlet 3, and a horizontal louver 5 is provided. A shut portion 6 is provided on the inner side of the ventilator case 2, and the shut portion 6 is provided with a shut damper 7 that opens and closes a passage in the ventilator case 2 to adjust the blowout amount of the conditioned air.

The shut damper 7 is formed of a single plate body, and a so-called butterfly type in which a shaft portion 8 provided in the central portion of the plate body is rotatably held by a side wall 2a of the ventilator case 2. One side 9a of the link member 9 is fixed to the portion of the shaft portion 8 that projects from the ventilator case 2.

A protrusion at the tip of an operating lever 10 for rotating the link member 9 to operate the shut damper 7 is engaged with the fitting long hole formed on the other side 9b of the link member 9.
The base end portion of the operating lever 10 is an operating portion 10a for operating the operating lever 10.

A case mounting projection (not shown) orthogonal to the axial direction of the operating lever 10 is provided near the operating portion 10a of the operating lever 10. If this case mounting projection is inserted into the fitting hole (not shown) of the side wall 2a of the ventilator case 2, the operation lever 10 will be rotatably held.
In this state, if the operation lever 10 is rotated, the shut damper 7 is rotated via the link member 9.

As an opening / closing device for a vehicle ventilator, there is one disclosed in Japanese Utility Model Laid-Open No. 2-115712. What is disclosed in this publication is that a shutter valve is provided in a rear air conditioning case body which is integrally provided in a front air conditioning case body, and an arm portion provided at a rotary shaft end of the shutter valve and the front air conditioning case body. The shutter valve operating dial provided on the body is connected via a connecting rod.

[0007]

In the prior art described above, the shut damper is formed of a single plate, and the plate is rotated to open and close the air passage. However, there is a problem in that the front-back distance of the shut portion that accommodates the plate body becomes long and the shut portion must be formed large.

As a result, the size of the ventilator as a whole is increased and the degree of freedom in designing the ventilator is impaired. Further, since the link member is interposed between the shaft portion of the plate body and the operation lever, there is a problem that the number of parts is increased and the cost is increased.

In the opening / closing device for a ventilator for a vehicle disclosed in Japanese Utility Model Laid-Open No. 2-115712, an arm portion provided at an end of a rotary shaft of a shutter valve and a dial for operating the shutter valve are connected to each other. However, since the connecting rod is used, the distance in the front-rear direction of the air conditioning case body becomes long, and the problem of the present invention is not solved.

The present invention has been made to solve the above-mentioned conventional problems, and a plurality of divided dampers are connected to each other in a bendable manner to form a shut damper, thereby reducing the shut portion. Then, it is an object of the present invention to provide a ventilator in which the entire ventilator is downsized, the degree of freedom in design is increased, the number of parts is reduced, and the cost is reduced.

[0011]

According to a first aspect of the present invention, a damper formed by rotatably connecting end portions of a plurality of divided dampers is disposed inside a ventilator case. One side of the damper is rotatably held by the ventilator case, and the other side of the damper is moved along a guide groove formed on a side wall of the ventilator case to move the damper. It is characterized in that an operating lever for opening and closing is attached.

In this way, inside the ventilator case,
One side of a damper formed by rotatably connecting a plurality of divided dampers is rotatably held, an operation lever is attached to the other side of the damper, and the other side of the damper is formed on the side wall of the ventilator case. The damper is moved along the guide groove to open and close the damper by an arc motion. In this manner, the damper is divided, bent, and moved in an arc to shorten the length of the shut portion of the ventilator case in the front-rear direction.

According to a second aspect of the present invention, the operation lever has a base end portion near the operation portion rotatably held on a side wall of the ventilator case and a tip end portion connected to the other side of the damper. It is characterized by.

In this way, the vicinity of the operation portion of the base end portion of the operation lever is rotatably held on the side wall of the ventilator case,
By connecting the tip portion to the other side of the damper, the damper is moved in an arc by the operation lever to open and close.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION In the present invention grasped from the description of claim 1, as shown in FIG.
Inside the 12, a damper 13 formed by rotatably connecting end portions of a plurality of divided dampers 14 and 15 is arranged. While one side of the damper 13 is rotatably held by the ventilator case 12, the other side of the damper 13 is
The other side of the ventilator case (12) is moved along a guide groove formed on the side wall of the ventilator case (12), and an operation lever for opening and closing the damper (13) is attached.

In the present invention grasped from the second aspect, as shown in FIG. 1, the operation lever 22 rotatably holds the vicinity of the operation part 24 at the base end on the side wall 12a of the ventilator case 12. Together, the tip is connected to the other side of the damper 13.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, one embodiment of the present invention will be described with reference to FIGS. 1 and 2 by giving the same reference numerals to the same members as those in FIGS. 1 and 2, the reference numeral 11 indicates the ventilator of this embodiment, and the reference numeral 12 indicates the ventilator case. The inside of the ventilator case 12 has a louver portion 4 on the air outlet 3 side, and a plurality of louvers 5 are attached in the vertical direction.

A shut portion 6 is provided on the inner side of the ventilator case 12, and a damper, that is, a shut damper.
13 are provided. As shown in FIG. 5, the shut damper 13 is formed by connecting the ends of split dampers 14 and 15 divided into two pieces to each other by fitting a shaft 16 and a recess 17 so as to be rotatable. . The shut damper 13 in FIG. 5 is in a stretched state for the sake of explanation, but in actual use, as will be described later, the split dampers 14 and 15 are bent and used so as to face each other (see FIG. 2). See dashed line).

The shaft 18 on one side of the divided damper 14 of the shut damper 13 formed by connecting in this way is rotatably held in the hole 18 provided in the side wall 12a of the ventilator case 12 shown in FIG. At the same time, the shaft 20 on the other side of the split damper 15 is fitted in the curved guide groove 21, and the shaft 20 protruding from the guide groove 21 is engaged with the end portion of the operating lever 22 as shown in FIG. The fitting hole 23 is fitted.

A case attachment projection 25 is formed near the operation portion 24 at the base end of the operation lever 22, and the case attachment projection 25 is fitted into a fitting hole 26 formed in the side wall 12a of the ventilator case 12. When fitted, the operation lever 22 is rotatably held on the side wall 12a of the ventilator case 12 in a state in which the tip portion is rotatably connected to the shaft 20 of the split damper 15. FIG. 1 shows this mounting state.

Next, the operation of the present embodiment will be described. When the air-conditioning air passage in the ventilator case 12 is opened and closed to adjust the amount of air blown out, the operation lever 24 can be moved upward from below in FIG.
Since the tip of 22 moves downward from above,
The shaft 20 of the split damper 15 fitted in the engagement hole 23 of 22
While moving downward along the guide groove 21, the split damper
As shown by the broken line in FIG. 2, 15 and the split damper 14 rotate to close the passage, and the blowoff amount gradually decreases. FIG.
In the figure, the solid line is the trajectory of the shaft 20 of the split damper 15.

On the contrary, when the amount of conditioned air to be blown out is increased, if the operating portion 24 is moved from the upper side to the lower side, the split dampers 15 and 14 are rotated to open the air passages, and the conditioned air is blown. The amount of blowout gradually increases. In this way, by rotating the operation lever 22 and causing the shaft 20 of the split damper 15 to move in an arc along the guide groove 21, the shut damper 13 is opened and closed, and the conditioned air blowing amount is adjusted.

As described above, if the shut damper 13 is formed of the divided dampers 14 and 15 and they are connected to each other and arranged so as to expand and contract, the length in the front-rear direction is longer than that of the conventional shut damper that rotates. Can be shortened. As a result, the length of the ventilator case 12 in the front-rear direction can be shortened. In addition, shut damper 13
Does not rotate, the link member can be eliminated.

[0024]

According to the first aspect of the invention, one side of a damper formed by rotatably connecting the ends of a plurality of divided dampers is rotatably held inside the ventilator case. , Attach the operation lever to the other side of the damper,
Since the other side of the damper is moved along the guide groove formed on the side wall of the ventilator case, the damper can be opened and closed by an arc motion. In this way, the damper was divided, and it was made a bending type, and it was moved in an arc, so
The length of the shut portion of the ventilator case in the front-rear direction can be shortened. As a result, the ventilator can be made compact and the degree of freedom in design can be increased.

According to the second aspect of the present invention, the vicinity of the operation portion of the base end portion of the operation lever is rotatably held on the side wall of the ventilator case, and the tip end portion is connected to the other side of the damper. The damper can be moved in an arc with the operating lever to open and close. As a result, the conventionally used link for imparting rotational movement to the damper becomes unnecessary, the number of parts can be reduced, and the cost can be reduced.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a cross-sectional top view of that of FIG.

FIG. 3 is a perspective view of a ventilator case.

4 is a perspective view of an operation lever of FIG. 1. FIG.

FIG. 5 is an enlarged perspective view of the damper of FIG.

FIG. 6 is a perspective view of a conventional ventilator.

7 is a top cross-sectional view of that of FIG.

[Explanation of symbols] 12 Ventilator case 12a Side wall 13 Damper 14 Divided damper 15 Divided damper 21 Guide groove 22 Operation lever 24 Operation part

Claims (2)

[Claims] 1. A ventilator case is provided with a damper formed by rotatably connecting end portions of a plurality of divided dampers, and one side of the damper is rotatable with respect to the ventilator case. And an operation lever for opening and closing the damper by moving the other side of the damper along a guide groove formed on the side wall of the ventilator case. Ventilator. 2. The operation lever has a base end portion near an operation portion rotatably held on a side wall of a ventilator case, and a tip end portion connected to the other side of the damper. The ventilator according to 1.