JPH088896Y2 - Fixed ventilator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention mainly relates to a luggage compartment in a vehicle in which a driver's cab and a luggage compartment are connected to each other, and the luggage compartment does not have an openable glass window. The present invention relates to a ventilator suitable for ventilation, and more specifically to an assembly structure of the ventilator.

(Prior Art) FIG. 6 schematically shows a vehicle to which the ventilator is applied, and a ventilator B is attached to the rear portion of the luggage compartment. 7 and 8 show an example of a conventional ventilator mounted on the body panel 8 for ventilating such a luggage compartment. As shown,
The ventilator B is a vehicle-side air duct 2 arranged on the indoor side, and a vehicle-side air duct 3 arranged on the outdoor side and joined to an outer opening 2b as an outlet of the vehicle-side air duct 2.
And a butterfly 4 as a check valve which is oscillatedly hung between the air ducts 2 and 3 to open and close the opening of the vehicle interior air duct 2.

The butterfly 4 is made of a rubber plate having appropriate flexibility, and screws or tacks are attached to the surface of the flange 5 so as to cover the outer opening of the air duct 2 on the inside of the vehicle. It is fixed by fixing means such as inserting a butterfly and heating and crimping the head of the pin. Further, in the air duct 2 on the vehicle interior side, an outwardly projecting flange 5 formed on the periphery of the opening is fixed to a flange 6 on the opening side of the air duct 3 on the vehicle exterior side by screws 7. It should be noted that the flange 6 of the vehicle outer side air duct 3 is projected to the outside slightly larger than the flange 5 of the vehicle inner side air duct 2 as shown in FIG.

In the ventilator B configured as described above, the flange 6 of the vehicle exterior air duct 3 is inserted while the vehicle interior air duct 2 is inserted from the outside into the mounting opening 8a formed in the body panel 8 of the luggage compartment of the vehicle. Body panel 8 with screws 9
Mounted by fixing to. Then, the air in the luggage compartment enters the duct from the inlet 2a formed in the upper inside of the vehicle interior air duct 2, pushes the butterfly 4 open and enters the exterior air duct 3, and forms on the rear side surface of the exterior duct 3. It is discharged to the outside through the outlet 3a. That is, the butterfly 4 allows the air flow from the inside of the vehicle to the outside of the vehicle by its elastic deformation and prevents the invasion of outside air such as rainwater and dust, and functions as a so-called check valve.

(Problems to be solved by the invention) However, in the conventional ventilator described above,
The butterfly 4 is attached to the air duct 2 on the inside of the vehicle by screws, burnt caulking or tacking. Especially in the case of burnt caulking, it is easy to burn due to work mistakes.
In addition, there is a problem that the number of work is increased due to the need for positioning with screws and tacks, and both air ducts 2,
The work of assembling was also poor because the connection of 3 also took time because it was done with screws.

The ventilator B is attached to the body panel 8 by fitting the inside air duct 2 into the opening 8a of the body panel 8 on the outside of the vehicle and then fixing the flange 6 of the outside air duct 3 to the body panel 8 with screws 9. Therefore, the tip of the screw 9 is exposed to the inside of the room, so that the appearance becomes bad, and it is necessary to take a special concealment measure to improve the appearance.

Then, this invention makes it the objective to improve the assembling workability | operativity of the ventilator itself among the malfunctions seen in the above-mentioned conventional ventilator.

(Means for Solving the Problems) The present invention is configured as follows to solve the above problems.

That is, the ventilator according to the present invention is disposed between the inside of the vehicle and the outside of the vehicle such that the inside air duct, the outside air duct, and the opening as the outlet of the inside air duct can be opened and closed. And a butterfly for allowing backflow to be prevented, and a butterfly mounting pin is provided on the upper surface of a flange formed in an outwardly protruding shape at the periphery of the opening of the vehicle interior air duct. Then, the upper part of the butterfly is fitted and mounted on the mounting pin.

Further, an engaging claw for coupling that protrudes in the projecting direction is provided on the projecting end surface of the flange, while an engaging claw for coupling that is engageable with the engaging claw is provided on the opening side of the vehicle outside air duct. The two air ducts are connected to each other by projecting inward and engaging the two engaging claws with each other by utilizing elastic deformation. Further, inside the air duct outside the vehicle, there is provided a pressing rib for pushing the butterfly against the flange surface of the air duct inside the vehicle when the two air ducts are connected.

(Operation) In the present invention configured as described above, the three members of the vehicle interior air duct, the vehicle exterior air duct, and the butterfly can be coupled by mutual fitting without using any screws, and The butterfly is pressed against the surface of the flange of the air duct inside the vehicle by the ribs of the air duct outside the vehicle, and is stopped by the pin to be held in a stable state.

(Embodiment) An embodiment of the present invention will be specifically described below with reference to FIGS. 1 to 5.

Ventilator B is a synthetic resin inside air duct 11
And a vehicle outer air duct 12 made of synthetic resin and a rubber butterfly 13 having appropriate flexibility. The duct main body of the vehicle-inside duct 11 is formed into a substantially rectangular box shape that forms an L-shaped air passage with one end opened as an inlet 14 and the other end opened as an outlet 15. An outwardly projecting flange 16 is formed in the opening, and a plurality of (in the figure, three) mounting pins 17 are provided at right angles on the upper surface of the flange 16. Further, each of the upper and lower end faces of the flange 16 is provided with two engaging claws 18 for coupling, which project in the vertical direction, that is, in the flange overhang direction.

The butterfly 13 that makes up the check valve is an air duct inside the vehicle.
It is composed of a rectangular plate having a size capable of closing the outlets 15 of 11 and is fitted to the surface of the flange 16 by fitting the fitting hole 20 provided in the upper part into the fitting pin 17.

Further, the vehicle outer air duct 12 is the vehicle inner air duct 11
It is formed in a substantially rectangular box shape that is one size larger than
Then, an opening 21 into which the flange 16 of the vehicle interior air duct 11 can be fitted is formed at one end which is a joint side with the vehicle interior air duct 11, and one side surface (a side which becomes a rear side when attached to the body panel 26). An outlet 22 is formed. Further, two engaging claws 23 on the left and right sides are respectively provided inwardly projecting on the inside upper and lower parts of the opening of the vehicle outside air duct 12, and the engaging claws 23 of the inside air duct 11 are provided on the engaging claws 23. Both air ducts 11 and 12 are coupled by elastically engaging with.

That is, one side of the vehicle interior air duct 11, for example, the upper side engaging claw 18 is inserted and engaged so as to sneak into the inside of the upper side engaging claw 23 of the vehicle outside air duct 12, while the lower side engaging claw is engaged.
In a state in which 18, 23 are brought into contact with each other, an external force is applied to push them while elastically deforming them so that both engaging claws 18, 23 are engaged with each other to connect the two air ducts 11, 12. At this time, attach the pin 17 to the flange 16 of the interior air duct 11.
The butterfly 13 attached by the above is pressed against the upper surface by the end surface of the pressing rib 24 provided inside the air duct 12 on the vehicle exterior side, so that both the air ducts 1 are securely attached.
It will be held between 1 and 12. Further, as shown in FIG. 5, both end surfaces of the flange 16 of the inside air duct 11 come into contact with the inside surface of the opening of the outside air duct 12 so that the lateral movement is restricted.

As described above, the connecting work between the vehicle inside air duct 11 including the butterfly 13 and the vehicle outside air duct 12, that is, the assembling work of the vetilator B, is different from the above-mentioned conventional method without using one screw, The work is simple because they are connected by fitting.

Next, a mounting structure of the ventilator B assembled as described above to the vehicle body will be described. A protrusion 19 is provided on the upper and lower portions of the outer surface of the duct body of the vehicle-side air duct 11.
2 are each projected outwardly. On the other hand, mounting protrusions 25 each having a screw hole are provided inwardly at substantially the center of the inner upper and lower portions of the opening of the vehicle outer air duct 12. In addition, an opening 27 for attaching a ventilator is formed in a body panel 26 at the rear of the luggage compartment of the vehicle body, and an inwardly attaching projection 28 is provided at a substantially central portion in the vertical direction of the opening 27.

Therefore, first, the inside air duct 11 of the ventilator B is inserted into the opening 27 of the body panel 26 from the outside of the vehicle, and the projections 19 are engaged with the upper and lower inner surfaces of the peripheral edge of the opening 27, thereby temporarily setting them. In this state, inside the room, a screw 29 is inserted through the hole of the mounting protrusion 28 on the body panel 26 side, and the screw 29 is inserted into the vehicle outside air duct 12.
The ventilator B can be attached to the body panel 26 by screwing it into the screw hole of the attachment protrusion 25 on the side.

The ventilator B thus mounted can be mounted on the body panel 26 by a single worker, and since the screw 29 is not exposed to the outside, a good-looking assembled state can be obtained.

The ventilator B as described above is not limited to a vehicle of the type shown in FIG. 6 in which the luggage compartment and the driver's cab communicate with each other and does not have an openable / closable glass window. The present invention can be applied not only to a vehicle that is independent of the driver's cab, but also to a driver's cab.

(Effects of the Invention) As described in detail above, the ventilator of the present invention uses the conventional screw by combining the attachment of the butterfly to the inside air duct and the connection between the inside air duct and the outside air duct. Compared with the main assembly method, the number of assembly work steps is greatly reduced, so that the assembly work is simplified and the work efficiency is greatly improved. Also, since the butterfly is pressed against the flange of the vehicle interior air duct by the retaining ribs provided on the vehicle exterior air duct in the assembled state, it does not fall off during use and is maintained in a stable state. It can be converted easily.

[Brief description of drawings]

1 is a perspective view of a ventilator showing an embodiment of the present invention before assembling, FIG. 2 is a perspective view showing an inner surface of an air duct outside a vehicle, and FIGS. 3 and 4 show different ventilators in an assembled state. FIG. 5 is a cross-sectional view showing a cross-sectional position, FIG. 5 is a cross-sectional view of the same, FIG. 6 is a schematic side view showing an example of a vehicle to which the present invention is applied, and FIG. 7 is a perspective view of a conventional ventilator before assembly. FIG. 8 and FIG. 8 are vertical sectional views of the ventilator also assembled. B ... Ventilator, 11 ... Car interior air duct 12 ... Car exterior air duct, 13 ... Butterfly 16 ... Flange, 17 ... Mounting pin 18 ... Engaging claw, 19 ... Projection 23 ... Engaging claw, 25 ... Mounting projection

Claims (1)

[Scope of utility model registration request] 1. An air flow from the inside of the vehicle to the outside of the vehicle by being arranged between the joints of the inside air duct, the outside air duct, and the opening of the inside air duct so as to open and close the opening as an outlet. A ventilator provided with a butterfly that allows and blocks reverse flow, wherein a butterfly mounting pin is provided on the upper surface of a flange formed in an outwardly projecting shape at the periphery of the opening of the vehicle interior air duct, The upper part of the butterfly is fitted and attached to the mounting pin, and the engaging end of the flange is provided with an engaging claw for projecting in the protruding direction, while the engaging part is provided on the opening side of the vehicle outside air duct. An engaging claw for coupling that can be engaged with the engaging claw is provided inwardly protruding, and both air claws are coupled by engaging the two engaging claws with each other by utilizing elastic deformation, Fixed ventilator provided with a pressing rib for pressing the butterfly to the flange surface of the vehicle inner duct in binding state of the two air duct in al the exterior side air duct.