JPS62103218A - Drafter mechanism of rear parcel of vehicle - Google Patents

Abstract

PURPOSE:To remove moisture from window and reduce noise in a car by opening fully the drafter hole of rear parcel when the external temp. is below a specified value, and by reducing the opening area of drafter when over specified value. CONSTITUTION:When external temp. is below a specified value (for ex., freezing point), a control device 22 operates a rotation driver 16 on the basis of signals from a thermosensor 21. Thereby a plurality of cams 15 installed on a rotary shaft of said rotation driver 16 are rotated in a certain direction to cause protrusion upward, and a rear trim 12 installed rotatable up and down with a hinge 11 as center is heaved to be retained there. Openings of a drafter duct 3 connecting the cabin to trank room are opened for all drafter openings 2a-2c, and moisture on the rear glass 7 is eliminated. If the external temp. is over specified value, rear trim 2 is pulled down to allow only the drafter opening 2b in the middle to be in released condition.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a drafter structure for a rear parcel portion of a vehicle such as an automobile.

(Prior art) The conventional drafter structure for the rear parcel section of a vehicle is as follows:
For example, there is one shown in FIG.

In the figure, 1 is the rear parcel trim, 2a, 2b, 2
c is a drafter opening provided on the left, center, and right side of the rear parcel trim 1; 3 is a drafter tact that guides the air in the vehicle interior to the left and right ends of the drafter openings 2a, 2b, and 2c; h rank 4; 5 is a drafter Opening parts 6a and 6b of the tact 3 are outlets provided on the left and right sides of the rear of the trunk 4, and the air led into the trunk is discharged to the outside of the trunk 1E from the rear air trains h6a and 6b of the trunk.

(Problems to be Solved by the Invention) However, in such a conventional drafter structure of the rear parcel part, the juice in the trunk room generated during the second run is absorbed into the drafter tact 3 and the drafter openings 2a, 2.
Since the insects enter the vehicle interior through the draft openings 2a and 2c, the noise inside the cabin increases.
, 2c are closed, air cannot circulate around the rear glass 7, and when the outside temperature is low, especially when it is below freezing, the rear glass 7 becomes cloudy, resulting in poor rear visibility.

(Means for Solving the Problems) The present invention aims to solve these conventional problems, and in order to properly ventilate the passenger compartment using the drafter, the drafter opening in the rear parcel section is opened and closed. an opening/closing means for opening/closing, an outside temperature detection means, and a drafter opening fully opened when the outside air temperature is below a predetermined temperature, and a draft opening fully opened when the outside air temperature is higher than the predetermined temperature, according to a detection signal from the outside air temperature detection means. The opening/closing control means for reducing the opening area of the drafter is provided.

(Example) Embodiments of the present invention will be described below based on the drawings.

FIG. 1 shows an embodiment of the invention. First, to explain the configuration, the rear parcel trim l has draft openings 2a and 2b.
, 2c, and has a hinge 11 disposed in the left-right direction in front of the drafter opening 2c.
It has the function of opening and closing a, 2b, and 2c. Further, as shown in FIGS. 2 and 3, the rear parcel trim 1 in front of the hinge 11 has draft openings 2a and 2b.

It is fixed to the base plate 13 formed with 2C via an elastic body 14 having a constant thickness.

On the back side of the rear trim 12, as shown in FIG.
° is fixed, and when the rear trim 12 is at its lowest position, its elastic body 14 ° is in contact with the bar cell steel plate 13, and the rear trim 12 is made to be flush with the front rear parcel trim 1. ing. Furthermore, a cam 15 for vertically rotating the rear trim 12 is disposed at the upper part of the drafter duct 3 within the drafter openings 2a and 2c at both left and right ends. The cam 15 in each drafter opening 2a, 2c is
The rotary shafts 17 of rotary drive mechanisms 16 driven by motors disposed at both left and right ends of the drafter duct 3 are attached in phase alignment with the rotary shafts 17 of the rotary drive mechanisms 16, and are rotated simultaneously by the respective rotary drive mechanisms 16.

The rotation of these two cams 15 causes the rear trim 12 to rotate between a lower limit position shown in solid lines in FIGS. 2 and 3 and an upper limit position shown in broken lines. At the extreme position, the elastic body 1
However, as shown in FIG. 3, since the elastic body 14' is not attached to the part corresponding to the center drafter opening 2b on the back side of the rear trim 12, the rear trim 12 and the bar cell steel plate are closed. 13, a gap is formed through which air can circulate.

The rotation drive mechanism 16 by the motor constitutes the opening/closing means for the drafter opening together with the rear trim 12, the elastic body 14° and the cam 15 as described above, and in order to control this according to the outside temperature, the mechanism shown in FIG. As shown in FIG. 2, the motor of each rotational drive mechanism 16 is connected to a control device 22 that outputs a control signal according to a detection signal from an outside temperature sensor 21 placed outside the vehicle interior. When the control device 22 detects that the outside air temperature is higher than a predetermined temperature (for example, 0 degrees) based on the detection signal from the temperature sensor 21, the cam 15
The rotational drive mechanism 16 is configured to retract the protruding portions from the drafter openings 2a, 2c and set the rear trim 12 to the lower limit position.
control. That is, as long as the protrusion of the cam 15 is retracted from the drafter openings 2a, 2c, the rotational drive mechanism 16
The motor is not driven. Therefore, the drafter openings 2a at both left and right ends.

2C is substantially closed by the rear trim 12 and the elastic body 14°, and the interior of the room is ventilated through the central drafter opening 2b. At this time, the opening area of the drafter duct 3 that connects the interior and the trunk room becomes the minimum.

On the other hand, if it is detected that the outside air temperature is below a predetermined temperature (for example, below freezing), the control device 22 rotates the cam 15 counterclockwise in FIG. The motor of the rotational drive mechanism 16 is driven so as to push it up to the position. As a result, not only the drafter opening 2b at the center but also the drafter openings 2a at both left and right ends,
2c is also opened, and the draft tact 3 connecting the interior and the trunk room is fully opened.

Since the illustrated embodiment is constructed as described above, its operation is as follows.

First, when the outside air temperature is higher than a predetermined temperature (for example, 0 degrees), the protruding part of the cam 15 is retracted from the drafter openings 2a, 2c, and the drafter openings 2a, 2c at both left and right ends are closed by the rear trim 12 and the elastic body 14'. Since it is virtually closed, the only opening in the drafter tact 3 that connects the interior and the trunk room is the central draft opening 2b, which secures a small opening area necessary for indoor ventilation, and also allows the duct to pass through to the trunk room. Since the drafter openings 2a and 2c at both left and right ends closest to the open part 5 are closed, the noise intruding into the vehicle interior from the trunk room during driving can be minimized and the noise in the vehicle interior can be reduced.

In contrast, the outside temperature is below a certain temperature (e.g. below freezing).
In this case, the rotary drive device 16 rotates the cam 15 via the rotating shaft 17 in response to an output signal from the control bag @22, and its protrusion pushes the rear trim 12 to the L limit position and holds it there. . Therefore, the drafter duct 3 that connects the interior and the trunk room is opened not only at the center drafter opening 2b but also at the left and right ends of the drafter openings 2a and 2c, and the drafter duct 3 is fully opened. As a result, air circulation through the drafter opening is improved around the rear glass 7, and fogging of the rear glass 7 is eliminated.

Although the embodiments have been described above, the present invention is not limited thereto. For example, the means for opening and closing the drafter opening of the rear parcel portion is not limited to the rear trim and its drive mechanism as in the embodiment described in (1) above, but may be any means that can change the opening area.

(Effects of the Invention) As described above, the present invention enables the outside air temperature to be set to a predetermined value according to the detection signals from the opening/closing means for opening and closing the drafter opening of the rear parcel portion, the outside air temperature detecting means, and the nuclear outside air temperature detecting means. The device is equipped with an opening/closing control means that fully opens the draft opening when the outside air temperature is below a predetermined temperature, and reduces the opening area of the drafter when the outside air temperature is higher than a predetermined temperature. can defog the vehicle windows, and if the outside temperature is higher than the specified temperature, 11
The effect of reducing indoor noise can be obtained.

[Brief explanation of drawings]

FIG. 1 is a diagram showing the structure of an embodiment of the present invention, FIGS. 2 and 3 are sectional views taken along lines II-II and ■-■ in FIG. 1, and FIG. 4 is a diagram showing the structure of an embodiment of the present invention. Figure 5m shows a device for changing the opening area of a drafter, and Figure 5m shows the configuration of a conventional rear parcel section. 1-111 rear bar cell trim, 2a, 2b, 2cm --- drafter opening. 3-111 drafter duct, 4---- Trunk, 5-111 Drafter duct opening part, 6a, 6b---Arator tray 2, 7---Rear glass, 11---Hinge, +2 -----After 1) Rim, +3---1 steel plate, 14.14'---1 elastic body. 1.5---one cam, 16---rotation drive mechanism, 17---rotation shaft, 21---one temperature sensor, 22---one control device. Patent applicant: Nissan Motor Co., Ltd. Figure 2 17 (rotating shaft) Figure 3 Figure 4

Claims (1)

[Claims] An opening/closing means for opening and closing the drafter opening of the rear parcel portion, an outside air temperature detecting means, and a detection signal from the outside air temperature detecting means. 1. A drafter structure for a rear parcel portion of a vehicle, comprising an opening/closing control means for reducing an opening area of the drafter when the temperature is higher than a predetermined temperature.