JPS5845131Y2 - Mounting structure of damper operating lever in air outlet of automobile air duct - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a mounting structure for a damper operating lever at an air outlet outlet of an air duct for an automobile.

Ventilation or circulation or heating of the air inside the car is installed on the left or right side or in the middle of the instrument panel in front of the front seats of the car.
A ventilation outlet is provided for cooling, etc., and usually the first
As shown in the figure, a wind direction adjustment box body 15, which is equipped with wind direction adjustment fins 16, 16, etc. that can be rotated left and right at the front opening of the cylindrical air duct main body 10, can also be rotated up and down. It is pivotally attached to the air duct body 10 via a shaft 17.

A damper (shielding plate) is installed inside the duct to control the opening and closing of the ventilation, but conventionally dampers have been designed to control the ventilation from all air outlets by adjusting a single lever. Many of them were composed of .

Of course, there were damper adjustment mechanisms for each air outlet, but since the conventional damper adjustment lever mechanism was made of metal, it produced a metal friction noise when operated, resulting in a poor operating feel. It was heavy and complicated to install, such as by caulking the control lever.

This idea utilizes the snap properties of synthetic resin to construct the damper adjustment lever mechanism, which was conventionally made of metal, to improve the operational feel of the lever mechanism by making it easier to operate and smoother. The purpose of this invention is to simplify and reduce the weight of the lever mechanism, and at the same time to make it easier to assemble the lever mechanism.

An embodiment of this invention will be described below with reference to the attached drawings. Fig. 1 is an overall perspective view of an air duct showing an embodiment of this invention, and Fig. 2 is an exploded perspective view of the main parts showing the mounting structure of the damper adjustment lever. Fig. 3 is a sectional view of the main part showing the installation state, Fig. 4 is a sectional view of the main part in another embodiment,
Figure 5 is a cutaway sectional view with the air duct in the closed state, Figure 6
Each figure shows a cutaway sectional view of the air duct in an open state.

First, in FIG. 1, as described above, this air duct has a wind direction adjustment box body 15 equipped with wind direction adjustment fins 16, 16, which rotate left and right at the front opening of the cylindrical air duct main body 10, and a shaft 17. It is pivoted so that it can rotate up and down.

An operating lever 20 is attached to the side of the air duct body 10 for controlling a damper 40 that opens and closes ventilation within the duct body.

FIG. 2 is an exploded perspective view of each part of the operating lever mounting portion, and the lever mounting structure according to this invention consists of a shaft 11 protruding from the duct body 10, a seat plate 19, an operating lever 20, and a presser foot. It is composed of a plate 30.

That is, in the same figure, one side plate 1 of the duct body 10
A shaft 11 is provided protruding from 0a, and a seat plate 19 is attached to the base of the shaft 110.

The shaft 11 and the seat plate 19 can be integrally formed of synthetic resin that constitutes the side plate 10a.

Openings 12 and 13 are formed at the top and bottom of the shaft 11 for fitting a presser plate 30, which will be described later, and a notched groove 14 is provided at the rear of the shaft 11, in which the operating rod 22 of the damper operating lever 20 moves. There is.

The damper operating lever 20 is made of synthetic resin, preferably synthetic resin with a small coefficient of friction such as polyamide resin,
The shaft 11 is inserted into the hole 21 and pivotally attached to the duct body 10.

By rotating the lever 20 up and down, the operating rod 22 provided at the tip thereof moves in the notch groove 14,
It is configured to open and close the damper 40.

The presser plate 30 is made of a synthetic resin, particularly preferably a synthetic resin that is strong and has excellent creep properties such as polyacetal resin or polyamide resin, and has an L academy 31 at one end and an L academy 31 at the other end as shown. The U is provided with a claw 33 at the end, the tip of which is a stepped part 33a via a bent part 32a.
It has arms and arms 32.

The shaft 11 protruding from the duct body 10 is inserted into the hole 34 provided approximately in the center, and the jaw 31a of the cursive arm 31 and the claw 33 of the U arm 32 are inserted into the duct body 10.
The openings 12 and 13 are fitted and engaged with the edges of the openings 12 and 13 respectively.
It is configured to

In the embodiment shown in FIG. 2, spherical protrusions 26, 27 are provided on the outer surface of the operating lever 20, and corresponding recesses 35.degree. 35', 36, 36, 35.degree. 36'
are formed at the open and closed positions of the damper 40 to facilitate positioning of the lever 20.

3 and 4 are cross-sectional views of the mounting structure according to this invention, and in FIG.
FIG. 4 shows an embodiment in which the U school 33 opens outward from the presser plate main body, and FIG. 4 shows an embodiment in which it opens inward from the presser plate main body.

As shown, in the embodiment of FIG.
3 is engaged with the lower edge side of the opening 13, and the main body of the presser plate 30 is attached to the side plate 10a in such a manner that the center part bulges slightly outward. In the embodiment shown in FIG. is attached to the upper edge of the opening 13, so the center portion is attached to the side plate 10a with a slight inward bend.

In either case, the presser plate 30 is
1 and U arms 32 are firmly attached to the side plate 10a of the duct body, and at the same time, the damper operating lever 20 inside thereof is clamped and tightened.

However, as described above, this presser plate 30 is made of synthetic resin and is attached to the main body side plate 10a by the U arm 32 having a bent portion 32a at one end, so that the presser plate 30 and the seat are The sliding friction caused by the rotation of the damper operating lever 20 sandwiched between the damper operating lever 20 and the plate 19 can be absorbed by their snap properties, allowing the operating lever 20 to be operated extremely smoothly.

5 and 6 are cutaway sectional views showing the state of the damper 40 when the operating lever 20 is operated.

FIG. 5 shows a state in which the ventilation is closed, and by moving the operating lever 20 downward, the operating rod 20 at the tip of the lever can be moved downward.
A damper 40 connected to the shaft rotates about the shaft 18 as a fulcrum,
Shield inside the duct.

In the figure, 41 is a connecting portion of the damper 40.

FIG. 6 shows a state in which ventilation is also opened, and by moving the operating lever 20 upward, the damper 40 becomes parallel to the bottom plate of the duct body.

In the embodiment, the operating lever 20 is provided with protrusions 26, 27, and the presser plate 30 is provided with recesses 35, 35', 36, 36' that fit with these in the open and closed states. The operating lever 20 is configured to be stopped at a predetermined position.

As mentioned above, in this invention, the damper operating lever and the holding plate are made of synthetic resin, and the operating lever is clamped and fixed by the snapping property of the holding plate. The sliding friction associated with the rotation is reduced, and the stress caused by the rotation is mainly absorbed by the bent portions of the U-hand and arms, making it possible to operate the lever smoothly with light force.

This is a great advantage, as it can provide a pleasant feeling to the user, especially as the component is installed in a highly fashionable position, such as the front instrument panel of an automobile.

Furthermore, since the duct operating lever mechanism is made of synthetic resin, it is simpler and lighter than conventional metal lever mechanisms, and the weight of the vehicle does not increase even when this mechanism is attached to each air outlet.

Furthermore, when pivoting the operating lever, it is only necessary to fit and engage the holding plate to the side plate of the main body, and there is no need to caulk the shaft head as in the conventional case, making the assembly process simple and easy.

As described above, the mounting structure of the duct operating lever according to this invention is an optimal structure for installing a damper to each air outlet of a car, and at the same time, it provides a pleasant feeling of use to the user, and its usage is extremely high. It is.

[Brief explanation of drawings]

Fig. 1 is an overall perspective view of an air duct showing an embodiment of this invention, Fig. 2 is an exploded perspective view of the main part showing the mounting structure of the damper adjustment lever, and Fig. 3 is an exploded perspective view of the main part showing the mounting state. A sectional view, FIG. 4 is a sectional view of main parts in another embodiment,
Figure 5 is a cutaway sectional view with the air duct in the closed state, Figure 6
The figures are the same (a cutaway sectional view in the open state). 10...Duct body, 10a...Side plate, 11...Shaft, 12, 13...・・Opening,
19... Seat plate, 20... Duct operating lever, 21... Hole, 22... Operating rod, 2
6, 27...protrusion, 30...pressing plate,
31...1 character arm, 31a...jaw, 3
2...U hand and arm, 32a...bending part, 3
3...Claw, 33a...Step, 34...
...hole, 35, 35', 36, 36'...
Recessed portion, 40... Damper.

Claims (1)

[Scope of utility model registration request] A damper operating lever 20 made of synthetic resin is attached to a shaft 11 protruding from the duct body 10 via a seat plate 19; an L academy 31 is provided at one end, and a bent portion 32a is provided at the other end. U equipped with a claw 33 whose tip is a stepped portion 33a
Forming a synthetic resin presser plate 30 having arms and arms 32,
The jaw portion 31a of the L academy 31 and the U arm 3 of the presser plate 30
2. The damper operating lever 20 is rotatably mounted by fitting and engaging the claws 33 of 2 into the edges of the openings 12 and 13 provided in the duct body 10, respectively. Mounting structure of the damper operating lever at the air outlet of the air duct.