JP2569086Y2 - Air outlet damper opening / closing mechanism - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a damper opening / closing mechanism for an air outlet in a vehicle or the like.

[0002]

2. Description of the Related Art Ventilation holes for ventilation and air conditioning in a vehicle compartment are provided in or near an instrument panel in front of a front seat of an automobile. The ventilation port is generally formed by fitting an air outlet formed of a cylindrical body or a box of a plastic molded product.

The air outlet is provided with a damper for individually switching ventilation or controlling the amount of ventilation at the ventilation opening, and operates a lever pivotally attached to the outer wall of the air outlet to rotate the damper. Thus, the ventilation opening is controlled.

Incidentally, it is preferable that the ventilation opening of the damper can be freely adjusted to an arbitrary angle according to the conditions in the vehicle compartment or the occupant's preference, and a comfortable moderation with a certain operation load is required in the operation of the damper. And secure holding of the fixed position is required.

[0005]

SUMMARY OF THE INVENTION In view of such circumstances, the present invention gives a moderate load to an operation dial for operating a damper to provide a comfortable moderation to a user and to fix the dial at a fixed position. Is intended to provide a damper opening / closing mechanism for an air outlet that can reliably hold the air outlet.

Further, the present invention aims to provide a damper opening / closing mechanism which has a simple structure with a small number of parts, is easy to assemble, can withstand frequent operations, has few failures, and is economical.

[0007]

Means for Solving the Problems That is, the present invention provides:
An air outlet main body having an openable and closable damper for defining a ventilation opening inside, an outer side wall having a boss protruding inside the annular protrusion, and an upper portion inserted into the boss and being above the annular protrusion A control plate having an appropriate number of switching recesses on the upper surface side, and a circular body having an engagement connection portion and an operation portion for opening and closing the damper, and the circular body has a boss portion. A center mounting portion rotatably fitted and crimping the control plate at a lower portion thereof, an elastic leg portion provided from an outer peripheral side of the circular main body to an inner lower portion thereof and pressed against the control plate; And an operation dial having a control leg that press-fits the switching recess while being pressed against the plate.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is a partially cutaway perspective view showing an example of the air outlet damper opening / closing mechanism of the present invention, FIG. 2 is an exploded perspective view of an essential part thereof, FIG. 3 is a plan view of an operation dial, and FIG. It is sectional drawing in line 4-4.

As shown in FIGS. 1 and 2, the air outlet damper opening / closing mechanism of the present invention includes an air outlet main body 10, a control plate 30, and an operation dial 20.
It is composed of

The air outlet main body 10 is made of a plastic box-shaped molded product, and has an openable / closable damper 11 for opening and closing a ventilation port or for regulating the amount of air flow therein, and a boss on an outer side wall 12. The part 15 is provided in a protruding manner. The boss 15 includes a cylindrical boss main body 16 and an annular protrusion 14 protruding outside the boss main body 16.

The control plate 30 is composed of a plate body 31 and is inserted through the boss body 16 and is supported by the annular projection 14 of the boss 15 from the back surface 30a. Reference numeral 32 denotes a mounting hole through which the boss main body 16 is inserted, and reference numeral 34 denotes a hole that engages with an engaging pin provided on the upper surface of the annular protrusion 14 to prevent rotation thereof.

An appropriate number of switching recesses 35 are formed on a predetermined arc of the control plate 30. The switching recess 35 is used for fixing the opening of the damper 11 by the rotation of the operation dial 20 in a stepped manner by the control leg 55 of the operation dial 20 being press-fitted. A number is provided. In this embodiment, the switching recess 35 includes three holes (35a, 35b, 35c) provided in the plate body 31.

The control plate 30 is provided on the boss 15.
The operation dial 20 is attached via the. Symbol 60
Is an attachment member such as a fixing screw. Operation dial 20
Is used to adjust the opening / closing amount of the damper 11. An engaging connecting portion 21 connected to the damper 11 via a connecting lever 13 and a dial-shaped operating portion 2
6 comprising a circular main body 25. Reference numeral 17 denotes a connection pin, and reference numeral 22 denotes an engagement groove of the connection pin.

The rotation range of the operation dial 20 in this embodiment is, as shown in FIG. 3, provided on the outer side wall 12 of the air outlet main body 10 so as to protrude on the movement locus of the engagement connecting portion 21. Anti-rotation pin 19,
19 regulated.

As shown in FIG. 4, the circular main body 25
A center mounting portion 40 rotatably fitted to the boss portion 15 is formed at the center thereof, and the lower surface 40a of the center mounting portion presses and holds the upper surface 30b of the control plate 30.

On the other hand, from the outer peripheral side of the circular main body 25, an elastic leg portion 50 and a control leg portion 55 for pressing the control plate 30 against the air outlet main body 10 are formed in the direction of the center mounting portion 40.

The elastic leg 50 is pressed against the plate body 31 of the control plate 30 from above and presses the operation dial 2.
A plurality of (three in this embodiment) are provided on the circular main body 25 to prevent the fluctuation of zero and to give an appropriate moderation feeling.
Is formed.

The control leg 55 has a spherical engaging projection 5 corresponding to the shape of the switching recess 35 formed at the tip thereof.
1, the control plate 30 is pressed against the switching recess 35 of the control plate 30 while being pressed against the control plate 30 to maintain the open / close position of the damper 11 with the rotation of the operation dial 20.

In this embodiment, the elastic leg portion 50 and the control leg portion 55 have curved surfaces curved in the direction of the center mounting portion 40, and the distal ends thereof are formed in a spherical shape. Center mounting part 40 and switching recess 3
In addition to applying a suitable load to the operation dial by pressing against the 5 with appropriate spring elasticity and concentrating the force,
The switching position is securely held and fixed.

[0020]

As shown and described above, according to the air outlet damper opening / closing mechanism of the present invention, the operation dial does not fluctuate, the opening / closing position of the damper is reliably maintained, and the rotation thereof is appropriately performed. A moderate feeling is given, and comfortable and reliable operation becomes possible. In addition, according to this invented structure, since assembly is easy with a small number of parts,
It is economical and has a great effect.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view showing an example of a damper opening / closing mechanism of an air outlet according to the present invention.

FIG. 2 is an exploded perspective view of a main part thereof.

FIG. 3 is a plan view of an operation dial.

FIG. 4 is a sectional view taken along the line 4-4.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Air outlet main body 11 Damper 12 External side wall 20 Operation dial 30 Control plate 35 Switching recess 50 Elastic leg 55 Control leg

Claims (1)

(57) [Scope of request for utility model registration] 1. An air outlet body 10 having an openable and closable damper 11 for defining a ventilation opening inside, and a boss 15 protruding inside an annular protrusion 14 on an outer side wall 12.
A control plate 3 inserted into the boss portion and fixed to the upper portion of the annular protrusion, and having an appropriate number of switching recesses on the upper surface side.
0, an engagement connecting portion 21 for opening and closing the damper, and an operating portion 2
6, a center mounting portion rotatably fitted to the boss portion and crimping the control plate at a lower portion of the circular main body, and a circular mounting portion from the outer peripheral side of the circular main body. An operation dial 20 having an elastic leg portion 50 provided toward an inner lower portion and pressed against the control plate, and a control leg portion 55 pressed against the control recess while being pressed against the control plate. Air outlet damper opening and closing mechanism.