JPS6134895Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a ventilation mechanism for the interior of a vehicle such as a bus.
Specifically, an outlet louver that opens obliquely to the rear in the front part of the side outer panel member of the vehicle, and an exhaust port that communicates the inside and outside of the passenger compartment inside the outlet louver are provided so that when the vehicle is running, the outlet louver opens diagonally rearward. The present invention relates to a vehicle interior ventilation mechanism that guides outside air into the vehicle interior through an inlet louver provided at the rear of an outer panel member and exhausts the vehicle interior air to the outside through the exhaust port and the outlet louver.

Generally, in this type of ventilation mechanism, the cabin air is ventilated by sucking cabin air through the exhaust port and the outlet louver and exhausting it to the outside due to the differential pressure generated between the inside and outside of the outlet louver when the vehicle is running. . However, the direction of travel of the vehicle,
Depending on the direction of the wind, outside air flows back into the vehicle interior through the outlet louver and the exhaust port, and the vehicle interior may be ventilated even when unnecessary, making the interior of the vehicle uncomfortable. For this reason, this type of ventilation mechanism has
Only when ventilation is necessary, the differential pressure generated between the inside and outside of the outlet louver allows for proper ventilation of the passenger compartment, and when outside air is to flow back into the passenger compartment through the outlet louver and exhaust port, the outside air backflows. It is desired to prevent the backflow of outside air and eliminate the uncomfortable condition inside the vehicle interior caused by this backflow of outside air. Furthermore, this type of ventilation mechanism is desired to prevent water from entering the vehicle interior through the outlet louver during car washing.

This invention was made to deal with this,
The present invention will be described below based on the drawings. FIG. 1 shows a bus equipped with a ventilation mechanism according to an example of the present invention. In this bus, an outlet louver 20a, which is a main component of the ventilation mechanism, is attached to the upper front part of the side skin member 11, and an outlet louver 20a, which is a main component of the ventilation mechanism, is attached to the upper rear part of the side skin member 11. An inlet louver 20b, which is a main component, is attached. These louvers 20a and 20b are known constituent members of the ventilation mechanism, and the outlet louver 20a has a plurality of openings that open diagonally backward, and the inlet louver 20b has a plurality of openings that open diagonally forward. It has an opening. In the ventilation mechanism equipped with both of these louvers 20a and 20b, the running airflow generated when the vehicle is running is guided into the cabin from the inlet louver 20b, and is Air inside the vehicle is exhausted from the outlet louver 20a, and the interior of the vehicle is ventilated.

Therefore, the recess of the outlet louver 20a mounting portion of the side outer plate member 11 and the side inner plate member 12
As shown in FIG. 3, the vehicle is provided with an exhaust port 13 that communicates the inside and outside of the vehicle compartment. This exhaust port 13
is located inside the outlet louver 20a and faces it. Further, an exhaust port 13 is provided on the upper inner surface of the exhaust port 13 in the side inner plate member 12.
A swinging arm 22 with one end fixed is attached to a lid body 21 that seals it from the outside. As shown in FIG. 2, the lid body 21 is a flat plate 2 made of metal or synthetic resin.
1a, and a rubber seal member 21b that is fixed to the inner peripheral edge of the flat plate 21a and tightly contacts the outer peripheral edge of the exhaust port 13. One end of the three swing arms 22 is attached to the inner side of the flat plate 21a. are fixed at equal intervals. The swing arm 22 is formed in a substantially V-shape, and a mounting bracket 23 is rotatably attached to the other end. The swing arm 22 is inserted into the exhaust port 13 from the outside as shown in FIG.
3, it is attached to the inner surface of the side inner plate member 12 and is swingable. In this state, the lid body 21
Due to its own weight, it comes into close contact with the outer peripheral edge of the exhaust port 13, sealing the exhaust port 13 from the outside.

On the other hand, a locking device 30 for restricting the swinging of the swinging arm 22 is attached to a support member 14, which is an inner plate member and is fixed to the inside of the exhaust port 13 so as to face it. This locking device 30 has a knob 3 at one end.
1a and the operating lever 31
It is composed of a stopper pin 32 that projects from the other end and can come into contact with the middle part of the swing arm 22, a bracket 33 to which the operating lever 31 is rotatably mounted, and a turnover spring 34. . The operating lever 31 is rotatably attached to a bracket 33 fixed to the lower outer surface of the support member 14 at a substantially central portion thereof. Further, the turnover spring 34 has one end locked to the operating lever 31 and the other end to the bracket 33, and its biasing force maintains the operating lever 31 in an upright state and moves the stopper pin 32 of the swing arm 22. It is placed in contact with the outside. The operating lever 31 restricts the swinging of the swinging arm 22 in this state, and when the lever 31 is rotated more than a predetermined amount, the biasing direction of the turnover spring 34 against the lever 31 is changed, and the swinging is stopped. It is separated from the arm 22 to release the swing restriction of the arm 22.

In the ventilation mechanism configured in this way, when the operating lever 31 is in the upright state as shown in FIG. 2
1, the ventilation mechanism cannot perform its ventilation function. Further, when the operating lever 31 is rotated counterclockwise as shown in the drawing to be in the tilted state as shown in FIG. 4, the operating lever 31 is maintained in the tilted state by the action of the turnover spring 34, and the stopper pin 32 is 22. As a result, the swinging restriction of the swinging arm 22 is released, and the ventilation mechanism is able to perform its function.

That is, when the vehicle is running, the airflow is guided into the vehicle interior from the inlet louver 20b, and the swinging arm 22 swings outward according to the differential pressure generated between the inside and outside of the lid 21 to close the exhaust port. 13 is opened, the air inside the vehicle is discharged to the outside by the suction force generated in accordance with the pressure difference, and the interior of the vehicle is ventilated.

In this way, in this ventilation mechanism, the lid body 21
The exhaust port 13 is brought into close contact with the outer periphery of the exhaust port 13 by its own weight to seal the exhaust port 13, and the swinging of the swing arm 22 is regulated by a lock device 30. The swinging restriction of the swinging arm 22 is released, and the swinging arm 22 is caused to swing outward due to the differential pressure generated between the inside and outside of the lid body 21, and the lid body 21 is separated from the outer peripheral edge of the exhaust port 13. The exhaust port 13 is left open. Therefore, the interior of the vehicle can be ventilated only when necessary, and in the event that outside air flows back into the vehicle interior from the outlet louver 20a, the lid 21 will immediately close the exhaust port 13 due to its own weight.
The exhaust port 13 is sealed by closely contacting the outer peripheral edge of the exhaust port 13.
Therefore, it is possible to appropriately prevent outside air from flowing back into the vehicle interior from the outlet louver 20a.
It is possible to eliminate unpleasant conditions in the vehicle interior caused by the backflow of outside air.

In addition, since the lid body 21 is brought into close contact with the outer peripheral edge of the exhaust port 13 by its own weight to seal the exhaust port 13, intrusion water that tries to enter the vehicle interior from the outlet louver 20a during car washing etc. can be reliably prevented without providing any other special means. Furthermore, if the swinging of the swinging arm 22 is restricted by the locking device 30 at this time,
Intrusion of water into the vehicle interior can be more reliably prevented.

In addition, in the present invention, each louver 20a, 2
0b can be provided at an appropriate position in the vertical direction of the side outer plate member 11.

As explained above, in the present invention, the outlet louver 20a opens diagonally rearward at the front part of the side outer panel member 11 of a vehicle such as a bus, and the inside of the outlet louver 20a is provided with the inside and outside of the vehicle compartment. An exhaust port 13 is provided to communicate with the exhaust port 13, and when the vehicle is running, outside air is guided into the vehicle interior from the inlet louver 20b provided at the rear of the side skin member 11, and air inside the vehicle is guided between the exhaust port 13 and the outlet louver 2.
In the vehicle interior ventilation mechanism configured to exhaust air from the exhaust port 13 to the outside, the lid body 21 has a sealing member 21a that tightly contacts the outer peripheral edge of the exhaust port 13 to seal the exhaust port 13 from the outside, and the lid body One end of the lid body 21 is fixed to the inside of the exhaust port 13, and the other end is rotatably attached to the interior plate member on the passenger compartment side, and the lid body 21 is moved around the outer peripheral edge of the exhaust port 13 by its own weight. a swinging arm 22 that seals the exhaust port 13 by being brought into close contact with the interior plate member, and a swinging arm 22 whose intermediate portion is rotatably attached to the interior plate member on the passenger compartment side and whose tip abuts against the swinging arm 22 and is connected to the vehicle interior plate member. The operating lever 3 has a stopper 32 that restricts the swinging of the operating lever 3.
1, the operating lever 31 is biased in one direction to bring the stopper 32 into contact with the swing arm 22, and when the operating lever 31 is rotated by a predetermined amount or more, the biasing direction for the lever is changed to the other direction. It includes a spring member 34 for converting, and when the operating lever 31 is rotated more than a predetermined amount, the swinging arm 22 swings outward due to the differential pressure generated between the inside and outside of the lid body 21 when the vehicle is running, and the exhaust gas is moved. Its feature lies in the opening of the mouth 13. Therefore, according to the present invention, it is possible to ventilate the vehicle interior only when necessary, and when ventilating the vehicle interior, it is possible to appropriately prevent outside air from flowing back into the vehicle interior from the outlet louver. In addition, it is possible to reliably prevent water from entering the vehicle interior from the outlet louver.

[Brief explanation of the drawing]

Figure 1 is a schematic perspective view of a vehicle equipped with a ventilation mechanism according to the present invention, Figure 2 is an enlarged perspective view of a lid that is a component of the ventilation mechanism, and Figure 3 is an enlarged view showing the main parts of the ventilation mechanism. FIG. 4 is an enlarged partially longitudinal side view showing the operating state of the main parts. Explanation of symbols, 11...Side outer panel member, 12...
Side inner plate member, 13...exhaust port, 20a...outlet louver, 20b...inlet louver,
21...Lid body, 22...Swing arm, 30...Lock device, 31...Operation lever, 32...Stopper pin, 34...Turnover spring.

Claims (1)

[Scope of utility model registration request] An outlet louver that opens diagonally to the rear at the front of the side outer panel member of a vehicle such as a bus, and an exhaust port that communicates the inside and outside of the cabin inside the outlet louver, are provided to allow outside air to flow out when the vehicle is running. In the vehicle interior ventilation mechanism, the air inside the vehicle is guided into the vehicle interior through an inlet louver provided at the rear of the side outer panel member, and is discharged outside from the exhaust port and the outlet louver. a lid body that has a sealing member tightly attached to the peripheral edge and seals the exhaust port from the outside; one end of the lid body is fixed to the inside of the lid body and extends through the exhaust port, and the other end is an inner plate on the passenger compartment side. a swinging arm that is rotatably attached to the member and brings the lid into close contact with the outer peripheral edge of the exhaust port by its own weight to seal the exhaust port; an operating lever that is movably attached and has a stopper at its tip that abuts against the swinging arm to restrict the swinging of the arm; and the operating lever is biased in one direction to cause the stopper to move against the swinging arm. a spring member that is brought into contact with the operating lever and changes the urging direction of the operating lever to another direction when the operating lever is rotated by a predetermined amount or more, and when the operating lever is rotated by a predetermined amount or more and the vehicle runs A vehicle interior ventilation mechanism characterized in that the swinging arm is swung outward by a pressure difference generated between the inside and the outside of the vehicle, thereby opening the exhaust port.