JPS5919605Y2 - Automotive ventilator - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a ventilator installed in an automobile.

Conventionally, in automobile ventilators, a boost passage that guides cooling or heating air into the vehicle interior and an outside air passage that introduces fresh air are formed in the instrument panel, and the outlet of each passage has an outer surface. A louver that is spherical and has an open passage that guides the air that has passed through each passage into the passenger compartment is rotatably provided so that the direction of the air blown out from each passage can be changed, and the passage is connected to the outside air passage. A switching valve that opens and closes is provided, and one end of an operating lever connected to the switching valve projects into the vehicle interior, so that the operating lever can close the outside air passage during cooling or heating.

However, in the above-mentioned conventional ventilator, the boost passage and the outside air passage are provided separately in the instrument panel, resulting in a complicated structure, and the louver of each outlet and the operating lever of the switching valve are separate. Because of this position, the wind direction adjustment and opening/closing operations were troublesome.

The present invention has been made in view of this point, and includes the above-mentioned boost passage and outside air passage being combined into one passage, and a louver adjustment operation that changes the direction of air blown out from the outlet of the passage. An object of the present invention is to provide a ventilator for an automobile that has a simple structure and can easily perform wind direction adjustment and opening/closing operations by using a single operating lever to open and close a switching valve that opens and closes an outside air passage. It is something to do.

That is, the present invention intersects the boost passageway that guides cooling air or heating air with the outside air passageway that guides fresh air,
A duct communicating between the intersection and the vehicle interior is provided in the instrument panel, a switching valve for opening and closing the passage is provided in the outside air passage upstream from the intersection, and the switching valve includes:
One end of a rotatably supported joint bar is connected so that the switching valve is opened and closed by the rotation of the joint bar, while an open passageway having a spherical outer surface and guiding air through the duct into the passenger compartment is connected to the outlet of the duct. A louver is rotatably provided, and an operating lever is rotatably fitted into a fitting hole of the louver, with one end of the lever protruding into the passenger compartment, and the other end of the lever being placed at the center of rotation of the louver, other than the joint par. The ends are connected via a universal joint, and the switching valve is opened and closed by rotating the operating lever, and the louver is rotated vertically and horizontally by swinging the operating lever.

Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings.

In FIG. 1, 1 is an upper dash panel, 2 is an instrument panel forming the front part of the vehicle interior, and the space formed by the instrument panel 2 and the upper dash panel 1 is supplied with cooling air or heating. A boost passage 3 for guiding wind and an outside air passage 4 for guiding fresh air are arranged and intersected with each other,
A duct 6 that opens into the vehicle interior is connected to the intersection 5.

Further, in the outside air passage 4 upstream from the intersection 5, the passage 4 is
A switching valve 7 for opening and closing is rotatably disposed.

The switching valve 7, as shown in detail in FIGS. 3 and 4,
It has a central axis 9 on the rotation center line of the substantially rectangular valve body 8,
At the center of the central shaft 9, a driven bevel gear 10 that is fitted and fixed to the central shaft 9 is disposed at right angles to the valve body surface 8a.

Furthermore, a joint topper 12 is rotatably supported in the duct 6 via a support member 11, and the joint topper 12 has a transmission bevel gear 13 at its tip that meshes with the driven bevel gear 10 of the switching valve 7. 13
．． The switching valve 7 is connected via the switching valve 10 so as to open and close the switching valve 7.

On the other hand, the air outlet 14 of the duct 6 has a spherical inner surface 15a.
A louver mounting portion 15 is formed, and the louver mounting portion 15 has a spherical outer surface 16a that fits the inner surface 15a of the louver mounting portion 15.
A louver 16 having a louver 16 is rotatably mounted.

As shown in detail in FIG. 2, the louver 16 has an open passage 17 in its center that guides the air that has passed through the duct 6 into the vehicle interior, and a downstream end of the open passage 17 has an open passage 17 in the center. A fitting part 19a having a fitting hole 18 and a plurality of, for example eight, supporting parts 19b, 19 that support the fitting part 19a.
A lever support member 19 consisting of b, . . . is disposed.

Further, reference numeral 20 denotes an operating lever that is rotatably fitted into the fitting hole 18 of the louver 16, and one end of the operating lever 20 projects into the vehicle interior.
The other end of the louver is connected to the other end of the joint par 12 via a universal joint 21 at the center of rotation of the louver.

That is, as shown in detail in FIGS. 5 and 6, an outer fitting part 22 having a spherical inner surface 22a is formed at the other end of the operating lever 20, and upper and lower portions of the outer fitting part inner surface 22a are formed. have hemispherical fitting holes 24 and 24 into which small balls 23 and 23 are removably fitted, respectively, while the other end of the joint par 12 has a spherical outer surface that fits the inner surface 22a of the outer fitting part. A fitting part 25 having a diameter of 25a is formed, and an arcuate slide groove 2 having a semicircular cross section and approximately the entire circumference is formed on the outer surface 25a of the fitting part, corresponding to the fitting holes 24, 24.
The operating lever 20 is connected to the joint par 12 so as to be able to swing vertically and horizontally, and to rotate together with the joint par 12.

Therefore, the switching valve 7 is opened and closed via the joint par 12 by rotating the operating lever 20, and the louver 16 is rotated vertically and horizontally by swinging the operating lever 20.

Incidentally, 27 is a bush, and 28 is a snap ring that is engaged with the support member 11 to prevent the joint par 12 from moving back and forth.

Therefore, in the above embodiment, the boost passage 3 and the outside air passage 4 intersect and the duct 6 is provided in the instrument panel 2 to communicate the intersection 5 with the vehicle interior. There is no need to provide two passages, the boost passage 3 and the outside air passage 4, in the 2.
Therefore, the structure becomes simple and the installation work can be easily performed.

Moreover, when changing the direction of the air blown out from the air outlet 14 of the duct 6, by swinging the control lever 20, the louver 16 having the open passage 17 that guides the air into the vehicle interior can be moved up or down. You can freely change and adjust the direction of air by rotating it left and right.

When opening and closing the outside air passage 4, the switching valve 7 can be opened and closed via the joint topper 12 by rotating the operating lever 20. Therefore, the single operating lever 20 can be used to adjust the wind direction and to close the switching valve 7. Opening and closing operations can be easily performed with one touch.

As explained above, according to the present invention, the boost passage that guides cooling air or heating air intersects the outside air passage that introduces fresh air, and the duct that communicates the intersection with the passenger compartment is installed in the instrument panel. A switching valve for opening and closing the passage is provided in the outside air passage upstream from the intersection, and one end of a rotatably supported joint bar is connected to the switching valve so that rotation of the joint bar opens and closes the switching valve. On the other hand, at the outlet of the duct,
A louver with a spherical outer surface and an open passage for guiding air through a duct into the vehicle interior is rotatably provided, an operating lever is rotatably fitted into a fitting hole of the louver, and one end of the operating lever is connected to the vehicle interior. It projects into the room, and its other end is connected to the other end of the joint bar at the center of rotation of the louver via a universal joint, and the switching valve is opened and closed by rotating the operating lever, and the louver is opened and closed by swinging the operating lever. Provides an automobile ventilator that has a simple structure and can be easily installed by rotating up and down and left and right, and also allows for easy one-touch air direction adjustment and opening/closing operations. It is something that can be done.

[Brief explanation of drawings]

The drawings illustrate the embodiment of the present invention, and FIG. 1 is a schematic configuration diagram, FIG. 2 is a front view of the louver, FIG. 3 is a front view of the switching valve, and FIG. FIG. 5 is a side view of the universal joint with a portion cut away, and FIG. 6 is a perspective view of the universal joint on the operating lever side. 1...Dash panel upper 2...
Instrument panel, 3...Boost passage, 4...Outside air passage, 5...Intersection, 6
...Duct, 7...Switching valve, 8...
... Valve body, 8a... Valve body surface, 9...
Central shaft, 10... Driven bevel gear, 11...
...Supporting member, 12...Joint bar, 1
3... Transmission bevel gear, 14... Air outlet, 15... Louver attachment part, 15a...
・Inner surface, 16... Louver, 16a...
Outer surface, 17... Open passage, 18... Fitting hole, 19... Lever support member, 19 a...
...Fitting part, 19b...Supporting part, 20...
...Operation lever 21 ... Universal joint, 22 ... External fitting part, 22 a ...
・Inner surface, 23... Small ball, 24... Fitting hole, 25... Fitting part, 25 a... Outer surface, 26... Slide groove, 27...Button, 28...Snap ring.

Claims (1)

[Scope of utility model registration request] A duct is provided in the instrument panel that intersects a boost passage that guides cooling air or heating air with an outside air passage that leads fresh air, and communicates the intersection with the vehicle interior, and connects the outside air passage upstream from the intersection. A switching valve for opening and closing the passage is provided, and one end of a rotatably supported joint bar is connected to the switching valve so that the switching valve is opened and closed by rotation of the joint bar. A louver having a spherical shape and an open passage for guiding air through a duct into the vehicle interior is rotatably provided, and an operating lever is rotatably fitted into a fitting hole of the louver,
One end of the operating lever projects into the vehicle interior, and the other end is connected to the other end of the joint bar at the center of rotation of the louver via a universal joint, so that rotation of the operating lever opens and closes the switching valve, and the operating lever A ventilator for an automobile, characterized in that the louver can be rotated up and down and left and right by a swinging operation.