JPH0331602Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial field of application> The present invention relates to a ventilation system for vehicles, and more specifically, it is mainly used for large vehicles such as buses and trucks. This relates to ventilation equipment that can be opened and closed.

<Prior Art> Generally, large vehicles such as buses are equipped with a ventilation system to purify the air inside the vehicle and adjust the temperature inside the vehicle.

Conventional ventilation equipment of this kind is, for example,
As disclosed in Publication No. 19364 and Japanese Utility Model Publication No. 45-21048, this device is a device that opens and closes a ventilation cover via a link mechanism to a ventilation opening provided on the roof of a vehicle. By moving the handle attached to the back side of the lid up and down in two steps, the front end of the ventilation lid connected to the end of the link mechanism is raised while being tilted forward in the direction of travel of the vehicle. It is configured to perform three actions: ventilation (air supply), raising the rear end of the ventilation lid to ventilate intake (exhaust), and further closing the ventilation opening with the ventilation lid. It is something.

The above-mentioned ventilation system is also called a "two-way ventilation system" and is a device that performs suction ventilation at the first opening position and forced ventilation at the second opening position, and has a relatively simple structure. It is excellent in some respects.

Furthermore, Japanese Patent Laid-Open No. 56-63508 proposes an opening/closing mechanism for an air supply damper that gradually opens and closes the opening area of the air supply port through a guide pipe that contacts the cam surface of the air supply damper. .

<Problems to be solved by the invention> The opening direction of the above-mentioned Japanese Patent Publication No. 1, No. 4, No. 2003, No. 4, No. 2003, and Japanese Publication No. 2003/1993 is limited to the longitudinal direction of the vehicle, and cannot be used effectively for outside airflow. When the end of the ventilation lid at the rear in the direction of travel of the vehicle is lifted to the first opening position to suck out and ventilate the interior of the vehicle, the ventilation lid is simply pushed up by the elastic force of the spring, so the ventilation cannot be performed. There is a drawback that the lid is unstable and closes due to wind pressure. Therefore, it is necessary to use a strong spring in order to open the ventilation lid with an elastic force strong enough to withstand wind pressure, which naturally poses a risk of making it difficult to open and close the ventilation lid.

Furthermore, since the link mechanism is used as a means for opening and closing the lid member, the structure is complicated and the number of parts increases, and when the lid member is closed, the link mechanism protrudes toward the passenger compartment, causing the interior space to be occupied. Narrowing, further decomposition,
There was a problem that the workability of assembly was extremely poor.

In addition, in the device shown in the back of the above-mentioned Japanese Patent Application Publication No. 2003-110001, the air supply damper cannot be opened in any direction, and the mechanism for adjusting the opening area of the air supply port has a structure that uses a cam or the like. There were problems in that it was complicated and it was difficult to firmly fix the opening position.

The present invention was devised in view of the above, and its purpose is to ensure that the opening state of the ventilation lid member is maintained with a simple structure, and that the lid member can be opened in any direction. To provide a ventilation system for a vehicle, which allows the opening area to be adjusted steplessly, and furthermore allows the cover member to be completely removed from the ventilation port.

<Means for Solving the Problems> In order to achieve the above-mentioned object, the present invention includes a lid member that covers a ventilation opening formed on a wall surface of a vehicle, which is provided evenly in the circumferential direction of the ventilation opening, and is constantly connected to the ventilation opening. The lid member is attached via an elastic member that biases it in the closing direction, and two or more opening/closing rods are radially connected at a predetermined interval near the periphery of the back surface of the lid member, and one end of each is rotatably and detachably connected. In addition, a friction support member is swingably provided on the peripheral edge of the ventilation opening in correspondence with the opening/closing rod, and the other end side of each opening/closing rod is fixed to a hole provided with a notch for releasing fixation of the friction support member. and is slidably inserted therethrough.

<Function> When it is desired to partially open the lid member 6 in the direction of travel of the vehicle 1 from the closed state, hold the other end side 13b of the opening/closing rod 13 and press the friction support member 16. When the lid member 6 is pushed upward along the hole 17, a part of the lid member 6 is pushed up against the elastic force of the elastic member 8, as shown in FIGS. 7 and 8, and when the lid member 6 is released at this point, The lid member 6 attempts to act in the closing direction due to the elastic force of the elastic member 8, but a downward pressing force acts on the upper inner surface of the hole 17 of the support member 16 via the opening/closing rod 13.
Opening/closing rod 13 and support member 16 generated at this time
The lid member 6 is held in the open state by friction with the hole 17.

When attempting to close the lid member 6 from an open state, by rotating the support 16 counterclockwise about the pin 15, the opening/closing state that was in pressure contact with the inner wall surface of the hole 17 of the friction support member 16 is removed. The part of the rod 13 is located in the notch 18 at the end of the hole 17, and the friction is almost released, and the opening/closing rod 13 can be inserted into the hole 17 of the friction support member 16.
The lid member 6 is closed by the elastic force of the elastic member 8.

When removing the cover member 6 from the wall surface 2 of the vehicle 1, push the opening/closing rod 13 up as much as possible, then push open the end portion 13a of the opening/closing rod 13 and pull it out from the locking hole 12 of the hinge plate 11. Bye.

<Example> Fig. 1 is a side view of a vehicle 1 (bus in this embodiment) in which this invention is implemented, and Fig. 2 is a ventilation system 3 installed on a wall 2 that partitions the outside of the vehicle 1 and the inside of the vehicle. It is. Note that the wall surface 2 on which the ventilation device 3 of this embodiment is provided is the roof, and it is also possible to provide it on the floor or the body (indicated by chain lines in FIG. 1).

As shown in FIGS. 2 and 3, the ventilation device 3 includes a lid member 6 that is openable and closable via a sealing material 5 so as to cover a ventilation opening 4 formed in a wall surface 2 (roof). There is.

On the back side of the lid member 6, the tip of an elastic member 8 made of a substantially triangular plate spring is secured to a flange portion 9 formed at the peripheral edge of the ventilation opening 4 through a pin 7, and the end of the elastic member 8 is secured to a flange portion 9 formed at the peripheral edge of the ventilation port 4. 6 is always biased in the direction of closing.

Further, the lid member 6 is located at multiple locations (in this embodiment, three locations at 120 degree intervals) between the flange portion 9 of the wall surface 2 where the ventilation opening 4 is provided and the back peripheral edge of the lid member 6.
An opening/closing means 10 is provided which can open and close the opening in any direction and adjust the opening area steplessly.

As shown in FIGS. 4 to 6, the opening/closing means 10 has a hinge plate 11 fixed to the back surface of the lid member 6 by welding or the like.
An end portion 13a of an opening/closing rod 13 formed in a substantially U-shape is rotatably engaged with the locking hole 12.

The other end 13b of the opening/closing rod 13 is slidably inserted into a friction support member 16 rotatably attached to the flange portion 14 via a pin 15. The friction support member 16 has a hole 17 through which the opening/closing rod 13 is inserted, as shown in FIG.
In addition, a notch 18 for releasing the opening/closing rod 13 is formed at the end of the hole 17 located on the other end side 13b of the opening/closing rod 13.

Next, the opening/closing operation of the present invention constructed as described above will be explained.

First, as shown in FIG. 2, when it is desired to partially open the cover member 6 in the running direction of the vehicle 1 from the closed state, the opening/closing rod 1 is opened.
When the lid member 6 is pushed upward along the hole 17 of the friction support member 16 by holding the other end 13b of the lid member 6, a part of the lid member 6 resists the elastic force of the elastic member 8 as shown in FIGS. and pushed up, forced ventilation (air supply)
An opening is formed to take in the. Furthermore, if you release your hand at this point, the lid member 6 tries to act in the closing direction due to the elastic force of the elastic member 8, but the downward pressing force is applied to the hole in the support member 16 through the opening/closing rod 13. The lid member 6 is held in the open state by the friction generated at this time between the opening/closing rod 13 and the hole 17 of the support member 16.

In addition, if you want to open the side of the cover member 6 opposite to the vehicle running direction or open the side for suction ventilation (exhaust), you can push up the other opening/closing rod 13 using the same operation as described above. good.

Next, when the lid member 6 is to be closed from the open state, when the support 16 is rotated counterclockwise about the pin 15, the support 16 is pressed against the inner wall surface of the hole 17 of the support member 16. The opening/closing rod 13 is located in the notch 18 at the end of the hole 17, so that the friction is almost released, and the opening/closing rod 13 can be inserted into the hole 17 of the friction support member 16.
The lid member 6 is closed by the elastic force of the elastic member 8.

In addition, when removing the cover member 6 from the wall surface 2 of the vehicle 1, after pushing up the opening/closing rod 13 as much as possible, pushing open the end portion 13a of the opening/closing rod 13 and pulling it out from the locking hole 12 of the hinge plate 11. This can be done more easily.

In the above embodiment, the friction support member 16 is formed with two holes 17 through which the opening/closing rods 13 can be inserted, but the friction support member 16 may be divided to support the opening/closing rods 13 respectively. You may.

<Effects of the invention> As described above, the present invention provides a lid member that covers a ventilation opening formed on the wall surface of a vehicle using an elastic member that is provided evenly in the circumferential direction of the ventilation opening and that always biases the ventilation opening in the direction of closing. Two or more opening/closing rods are connected radially at predetermined intervals near the periphery of the back surface of the lid member, and one end of each is rotatably and detachably connected to the periphery of the ventilation hole. A friction support member is swingably provided corresponding to the opening/closing rod, and the other end side of each opening/closing rod is fixed and slidably inserted into a hole provided with a fixing release notch in the friction support member. Therefore, it is possible to maintain the open state of the lid member and to open and close the lid member easily and reliably.

Further, the lid member can be opened in any direction, and the opening area can be adjusted steplessly.

In addition, since a link mechanism is not used as a means of opening and closing the lid member as in the past, the structure is simple and the number of parts is small, and when the lid member is closed, the link mechanism protrudes toward the passenger compartment, narrowing the passenger compartment space. There is no such thing.

Furthermore, the lid member can be removed, which has the effect of significantly improving the workability of disassembling and assembling.

[Brief explanation of drawings]

Figure 1 is a side view of a vehicle implementing the present invention;
The figure is a cross-sectional view of the ventilation system, and Figure 3 is the − of Figure 2.
Fig. 4 is a perspective view of the opening/closing means, Fig. 5 is a side view of the opening/closing means, Fig. 6 is a sectional view of the friction support member, and Figs. 7 and 8 are the open state of the lid member. FIG. 1...Vehicle, 2...Wall, 4...Ventilation, 6...
...Lid member, 8...Elastic member, 10...Opening/closing means,
13...Opening/closing rod, 16...Friction support member, 1
8...Notch for releasing fixation.

Claims (1)

[Scope of utility model registration request] A lid member that covers a ventilation opening formed on a wall surface of a vehicle is attached via an elastic member that is provided evenly in the circumferential direction of the ventilation opening and always biases the ventilation opening in a direction to close the ventilation opening, and Two or more opening/closing rods are connected radially at a predetermined interval in the vicinity, one end of which is rotatably and removably connected to each other, and a friction support member is oscillated at the peripheral edge of the ventilation opening in correspondence with the opening/closing rods. A ventilation system for a vehicle, wherein the other end of each opening/closing rod is fixed and slidably inserted into a hole provided with a fixing release notch in the friction support member.