JPH0228964Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a ventilation device that allows communication between the inside and outside of a vehicle when a movable roof that opens and closes a portion of the roof of the vehicle is opened.

Vehicles equipped with a sliding movable roof or a removable movable roof are known, but when the movable roof of such a vehicle is opened, a resonance phenomenon between the interior volume and the wind at the opening, called a so-called wind slob, occurs. Noise occurs. The mechanism by which this wind throb occurs can be considered as a Helmholtz resonance box with the passenger compartment as a resonance box, and the resonance frequency is expressed by the following equation.

Here, α is the speed of sound (m/s), A ₀ is the opening area (m ² ), V ₀ is the cabin volume (m ³ ), and L is the roof thickness.

A wind throb occurs when there is a disturbance that matches this resonant frequency.

Such wind slobs cause discomfort to passengers, and improvements have been desired.

A device for eliminating such wind slobs is disclosed in, for example, Japanese Utility Model Application Publication No. 56-150613.

The wind slob prevention device of this publication operates the air conditioner blower installed at the bottom of the instrument panel at the same time when the sunroof installed on the ceiling is opened, thereby preventing airflow from the vehicle interior through the sunroof to the outside. This prevents outside air from being drawn in, thereby preventing the occurrence of wind slobs.

However, with such a windthrob prevention device, when the sunroof is opened, the air conditioner's blower is always operated, and the selection of the air conditioner's operating mode is changed regardless of the occupant's will. Therefore, in this case, the passenger cannot obtain the desired cabin air condition, making the passenger extremely uncomfortable.

The present invention was developed in view of the conventional circumstances, and its purpose is to provide a ventilation system for vehicles that can effectively prevent wind slobs without using an air conditioner blower or the like. is to provide.

Next, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 to 5 show a first embodiment of the present invention, and FIG. 1 shows a perspective view of a vehicle, in which a roof panel 2 of a vehicle 1 is provided with a first opening 3; A sliding roof 4 faces, and the opening 3 is opened and closed by sliding the roof 4 back and forth. Fig. 2 shows a sliding roof frame, in which a frame 5 is provided under the roof panel 2 and has an opening 6 corresponding to the opening 3, and the sliding roof 4 is held in the frame 5 so as to be slidable in the front and back direction. has been done. The sliding roof 4 is driven by a mechanism as shown in FIGS. 2 and 3, for example. A motor 7 is attached to the rear part of the roof frame 5, and a drive gear 8 such as a worm is provided to the output shaft 7a of the motor 7. A concentric pinion 10 is provided on the gear 9, and spiral cables 11, 11 whose terminal parts are connected to both rear ends of the sliding roof 4 are exposed on both sides of the pinion 10. Seshime,
The cables 11, 11 are moved in parallel in opposite directions by forward and reverse driving of the motor 7, and the sliding roof 4 is moved back and forth with respect to the openings 3, 6 to open and close the openings.

In the above, rearward of the first opening 3 of the vehicle body, for example, the left and right rear pillar portions 1a.
... A second opening 12 is provided which serves as a ventilation device that connects the interior and exterior of the vehicle and discharges the air inside the vehicle to the outside of the vehicle. A door member 13 is provided on the inside, and in the embodiment, the door member 13 consists of a plurality of pieces 13a lined up above, the topmost piece is connected to the end of the cable 15 via a connecting member 14, and the member 14 is guided in vertical movement by engagement of a guide hook 14a with a guide member (not shown) provided on the vehicle body side. Two cables 15 are provided corresponding to the left and right door members, and the upstream ends thereof face both sides of the pinion 17 of the gear 16 that meshes with the drive gear 8 described above, and the cables 15, 15 are the same as the cables described above. With this structure, the door member 13 is moved in parallel in opposite directions by the drive of the motor 7 to open and close the door member 13. The cable 15 is driven by the same motor as the cable 11, so the opening/closing movement of the sliding roof 4 and the opening/closing movement of the door member 13 are performed in conjunction with each other, and the opening amount of the roof 4 and the opening amount of the door member 13 are We will deal with it. When the roof 4 is opened, the door member 1
3 is moved upward, and the second opening 12 is also opened, allowing communication between the inside and outside of the vehicle. As a result, outside air that has flowed in through the first opening 3 flows out from the vehicle interior through the second opening 12.

In the above, when the sliding roof 4 is opened, a disturbance occurs, and when this disturbance matches the frequency expressed by equation (1), a wind slob occurs. However, in the present invention, since the door member 13 also opens as the sliding roof 4 opens, A ₀ in equation (1), that is, the opening area changes, and the resonance frequency f
changes. Therefore, even if a disturbance occurs, wind slobs do not occur, and noise can be prevented from occurring. In addition, the leakage area of a normal vehicle is 30 to 60 cm ²
This contributes little to the prevention of wind slobs, and in order to prevent wind slobs, a total leakage area of 200 cm ² or more is required, but this can be easily achieved with the structure of the present invention.

FIG. 5 shows a modified embodiment. In this embodiment, a negative pressure operating type is shown, and a part of the cable 115 for opening and closing the door member described above is connected to guides 117, 117.
bend it into an inverted U-shape, and lock the bent portion 115a to the operating rod 118a of the negative pressure actuator 118.
Inside is a diaphragm 1 that drives the operating rod 118a.
18b, and the operating rod 118a is moved upward by introducing negative pressure from the suction pipe into the negative pressure chamber 118c. Negative pressure chamber 11
8c is connected to the outside air via a solenoid 120 in a conduit 119, and to a suction pipe negative pressure system 122 via a solenoid 121 in a branched conduit 119a. The solenoids 120 and 121 are turned on by the displacement meter 123 that detects the opening amount of the sliding roof.
It is activated by the switches 124 and 125 which are turned off, and the ratio of negative pressure and outside air is adjusted according to the amount of opening of the sliding roof according to the operation of the solenoid, and the stroke of the operating rod 118a is adjusted to prevent the opening by the door member. Adjust amount.

6 to 8 show a second embodiment in which the present invention is applied to a vehicle equipped with a removable roof, so-called a detachable roof.

An opening 103 of a roof 102 of a vehicle 101 is covered with a removable roof member 104 so as to be openable and closable, and a removable locking fitting 1 is provided at the rear center of the roof member 104.
04a, and locking pieces 104b, 10 on the front, rear, left and right sides.
4b, and a seal rubber 104c is attached around the roof member 104. On the other hand, the locking metal fitting 1 is located at the center of the rear end of the roof opening 103.
04a, and the receiving parts 103b, 103 of the locking pieces 104b, 104b on the front left and right sides.
b is provided, and the roof member 104 is connected to the opening 103.
The metal fitting is engaged with the receiving part to hold the roof member and close the opening, and these engagements are released to remove the roof member, and FIG. 6 shows the removed state.

A door portion 113 serving as a ventilation mechanism is provided on the pillar portion 101a of the vehicle 1, and is driven to open and close by a motor 107 provided above the door portion inside the vehicle. The switch 116 of this motor 107 is connected to the opening 103.
The operator 1 of the switch 116 is provided in the front center of the
17 protrudes rearward, and in the switch-off state shown in FIG. 7, the roof member 104 is removed and the opening 103
is in an open state, the door portion 113 is opened, and the opening amount is maintained at a predetermined value. A switch pressing piece 118 is provided at the center of the front part of the roof member 104, and when the roof member 104 is placed over the opening to close it, the pressing piece 118 moves back the operator 117 of the switch 116. This turns on the switch, drives the motor 107, and drives the door 113 in the closing direction to reduce or close the opening.
This is the harness that connects the 07.

As is clear from the above, according to the present invention, the so-called wind slob (resonance phenomenon) that occurs when the movable roof is opened and opened can be prevented by increasing the opening area in the passenger compartment by opening the ventilation in conjunction with this. Therefore, the noise of a vehicle with a movable roof can be suppressed without using an air conditioner blower or the like.

In the examples, the sliding roof type uses the same drive source as the roof member, and the negative pressure operated type is shown, but like the detachable type, the sliding roof type also uses an independent motor etc. to control the opening amount of the roof. The ventilation may be activated in response to the above, and the ventilation may be opened in response.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is a perspective view of a vehicle, Fig. 2 is a perspective view of a sliding roof frame, Fig. 3 is a perspective view of a drive unit, and Fig. 4 is a perspective view of a bench rail. Enlarged longitudinal sectional view of the section, No. 5
The figure shows a modified embodiment, FIG. 6 is a perspective view of the second embodiment, and FIGS. 7 and 8 are explanatory diagrams of the operation of the switch. In the drawings, 1,101 is a vehicle, 2,102 is a roof, 3,103 is an opening, 4,104 is a sliding roof, and 13,113 is an opening/closing member.

Claims (1)

[Scope of utility model registration request] In a vehicle equipped with a movable roof that opens and closes a first opening provided in a part of the roof part, a second opening is formed behind the first opening of the vehicle body to communicate the inside of the vehicle with the outside. , an opening/closing member for opening and closing the second opening is provided in the second opening, and the opening/closing member is interlocked when the movable roof is opened to open and close the second opening.
1. A ventilation device for a vehicle, characterized in that an opening is opened to allow outside air to flow into the vehicle through the first opening and to flow outside through the second opening.