JP2010254119A - Air guide duct structure for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air guide duct structure for a vehicle which can prevent the deterioration of an oscillation property of equipment to be cooled in a noise area. <P>SOLUTION: The air guide duct structure 10 for the vehicle is provided with side-wall ducts 31 at left and right sides of the equipment to be cooled 12, and guides air in front of the vehicle to a side of the equipment to be cooled in the side ducts as cooled air. The side-wall ducts are formed of rubber materials, have support projections 36 projecting toward the equipment to be cooled which are locked with the equipment to be cooled. Furthermore, the support projection has a locking hole 45 which can be locked with a support claw 23 of the equipment to be cooled. In addition, the side-wall duct has a rib 37 supporting the support claw locked with the locking hole. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a wind guide duct structure for a vehicle in which side wall ducts are provided on the left and right sides of a cooling device, and air in front of the vehicle is guided to the cooling device side as cooling air by the side wall ducts.

Some air duct structures for vehicles contain a radiator or the like as a cooling device in the case of a cooling device, and air guide ducts (hereinafter referred to as “side wall ducts”) attached to the left and right sides of the case with clips. is there.
According to this air duct structure for a vehicle, when the vehicle travels, the air in front of the vehicle is guided into the case as cooling air (running air) by the left and right side wall ducts, and the cooling equipment is cooled by the guided cooling air. (For example, refer to Patent Document 1).

JP 2007-15487 A

  Here, the cooling device is attached to the vehicle body via a support member. The vibration of the engine or the like is propagated to the cooling device through the support member to vibrate the cooling device, so that the front part of the vehicle body has a certain vibration characteristic.

However, in the air duct structure of Patent Document 1, the side wall duct is integrally attached to the left and right sides of the cooling device (specifically, the left and right sides of the case) with clips.
For this reason, it is conceivable that the resonance frequency of the cooling device is changed by the side wall duct to deteriorate the vibration characteristics of the cooling device into the noise region.

  It is an object of the present invention to provide a vehicle air duct structure that can prevent the vibration characteristics of a cooling device from deteriorating in a noise region.

  According to a first aspect of the present invention, there is provided a vehicle air guide duct structure in which side wall ducts are provided on the left and right sides of the cooling device, and air in front of the vehicle is guided to the cooling device side as cooling air by the side wall ducts. Is formed of an elastic material, provided with a protruding portion protruding toward the cooling device, and the protruding portion is locked to the cooling device.

  According to a second aspect of the present invention, the protruding portion has a locking hole that can be locked to the supporting claw portion of the cooling device, and the side wall duct supports the supporting claw portion that is locked to the locking hole. It is characterized by having.

  According to a third aspect of the present invention, the protruding portion includes a locking hole that can be locked to the support claw portion of the cooling device, and a support rib that supports the support claw portion locked to the locking hole. And

  According to a fourth aspect of the present invention, the protruding portion protrudes in a downwardly inclined state toward the cooling device, and has a locking hole that can be locked to a support claw portion of the cooling device, An opening is formed below the protrusion.

  According to a fifth aspect of the present invention, an opening is provided in the support rib.

In the invention which concerns on Claim 1, the side wall duct was formed with the elastic material, and the protrusion part was provided in the side wall duct. By forming the protrusions with an elastic material, the rigidity of the protrusions can be kept low.
And a side wall duct can be attached to a cooling device by latching a protrusion part with low rigidity to a cooling device.
By suppressing the rigidity of the protruding portion to be low, it is possible to prevent the resonance frequency of the cooling device from being changed by the side wall duct in a state where the side wall duct is attached to the cooling device.
Thereby, it can prevent that the vibration characteristic of a cooling device deteriorates to a noise area by a side wall duct.

In the invention which concerns on Claim 2, the latching hole was provided in the protrusion part and the support rib was provided in the side wall duct. Then, the locking hole is locked (fitted) to the support claw portion, and the support claw portion is supported (pressed) by the support rib.
Thereby, a side wall duct can be stably attached to a support nail | claw part.

In the invention which concerns on Claim 3, the locking hole and the support rib were provided in the protrusion part. Then, the locking hole is locked to the support claw portion, and the support claw portion is supported by the support rib.
Thereby, a side wall duct can be stably attached to a support nail | claw part.
In addition, simplification of the configuration can be achieved by collectively providing the locking holes and the supporting ribs in the protruding portion.

In the invention which concerns on Claim 4, the protrusion part protruded in the inclination state of the downward slope, and the latching hole was provided in the protrusion part. Then, the locking hole is locked (fitted) to the support claw portion.
Thereby, a side wall duct can be stably attached to a support nail | claw part.
In addition, the rigidity of the protrusion can be further reduced by forming the opening below the protrusion in the side wall duct.
As a result, it is possible to better prevent the vibration characteristics of the cooling device from deteriorating to the noise region due to the side wall duct.

In the invention which concerns on Claim 5, the rigidity of a protrusion part can be further suppressed by providing an opening part in a support rib.
As a result, it is possible to better prevent the vibration characteristics of the cooling device from deteriorating to the noise region due to the side wall duct.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a vehicle air duct structure (Example 1) according to the present invention. It is a perspective view which shows the state which looked at the state which attached the left side wall duct unit of FIG. 1 to the cooling device from the vehicle body center side. It is a disassembled perspective view which shows the state which removed the left side wall duct unit of FIG. 2 from the cooling device. FIG. 4 is an enlarged view of part 4 of FIG. 3. FIG. 5 is a sectional view taken along line 5-5 of FIG. It is a figure explaining the shaping | molding method of the left side wall duct unit which concerns on Example 1. FIG. It is a perspective view which shows the wind guide duct structure (Example 2) for vehicles which concerns on this invention. FIG. 8 is a cross-sectional view taken along line 8-8 in FIG. 7. It is a figure explaining the shaping | molding method of the left side wall duct unit which concerns on Example 2. FIG. It is a perspective view which shows the wind guide duct structure (Example 3) for vehicles which concerns on this invention. It is the 11-11 line sectional view of FIG. It is a figure explaining the shaping | molding method of the left side wall duct unit which concerns on Example 3. FIG. It is a perspective view which shows the wind guide duct structure (Example 4) for vehicles which concerns on this invention. FIG. 14 is a cross-sectional view taken along line 14-14 of FIG. It is a figure explaining the shaping | molding method of the left side wall duct unit which concerns on Example 4. FIG.

  The best mode for carrying out the present invention will be described below with reference to the accompanying drawings. Note that “front”, “rear”, “left”, and “right” indicate the direction viewed from the driver, the front side is Fr, the rear side is Rr, the left side is L, and the right side is R.

A vehicle air duct structure 16 according to the first embodiment will be described.
As shown in FIG. 1, the vehicle body front structure 10 includes a cooling device 12 provided (supported) on the front bulkhead, a front bumper beam 14 provided in front of the vehicle body of the cooling device 12, and the cooling device 12. And an air duct structure (vehicle air duct structure) 16 provided on the front bumper beam 14.

Since the cooling device 12 is supported by the front bulkhead, the cooling device 12 is provided in front of the front bulkhead or in the front bulkhead.
The cooling device 12 includes a radiator and a condenser, a radiator is provided in front of the front bulkhead, and a condenser is provided in front of the radiator.
The radiator is a heat exchanger for cooling engine coolant with outside air (air).
The condenser is a heat exchanger for cooling the refrigerant used in the refrigeration cycle of the air conditioner (air conditioner) with outside air (air).

The cooling device 12 is provided with a case 21 for housing an electric fan on the rear side of the radiator or the condenser body.
A plurality of support claws 23 are provided on the left side wall 21a of the case 21 at predetermined intervals in the vertical direction.
Further, similarly to the left side wall 21a, a plurality of support claw portions 23 (not shown) are provided on the right side wall 21b of the case 21 at predetermined intervals in the vertical direction.
The support claw portion 23 will be described in detail with reference to FIG.

  The left and right end portions of the front bumper beam 14 are respectively provided on the left and right front side frames (the frame member of the vehicle body front structure 10).

  The vehicle air guide duct structure 16 is provided between the cooling device 12 and the front bumper beam 14, and guides the air in front of the vehicle to the cooling device 12 side (specifically, the condenser or radiator side) as cooling air. is there.

  The air duct structure 16 includes left and right side wall duct units 25 and 26 provided on the left and right sides of the cooling device 12, and an upper duct 27 connected to upper ends of the left and right side wall duct units 25 and 26, respectively. The lower duct 28 is connected to the lower end of each of the left and right side wall duct units 25, 26.

  The left side wall duct unit 25 is a member formed of a rubber material (elastic material), and a side wall duct 31 provided on the left side of the cooling device 12 and support means 32 provided on the side wall duct 31 (see FIG. 2). And.

As the rubber material, for example, an olefin-based thermoplastic elastomer (TPO, that is, Thermo Plastic Olefin) is used.
Thermoplastic elastomers have rubber properties at room temperature and soften and can be compressed, extruded, injected, etc. at high temperatures, just like thermoplastics.
Therefore, the left side wall duct unit 25 can be easily molded by softening the thermoplastic elastomer at a high temperature.

The side wall duct 31 is a duct that extends in the longitudinal direction of the vehicle body and guides air in front of the vehicle to the cooling device 12 (see FIG. 1) side as cooling air (running air).
The side wall duct 31 has an upper portion 31a connected to the left end portion 27a of the upper duct 27, a lower portion 31b connected to the left end portion 28a of the lower duct 28, and an attachment flap 34 bent from the front portion 31c toward the inside of the vehicle body. Have.

  The attachment flap 34 is provided so as to be substantially orthogonal to the side wall of the side wall duct 31. The attachment flap 34 is attached to the front bumper beam 14 with a clip.

As shown in FIG. 2, in the left side wall duct unit 25, the support means 32 is provided on the inner surface 31 e (that is, the surface facing the left side wall 21 a of the case 21) in the rear portion 31 d of the side wall duct 31.
The support means 32 includes a plurality of support protrusions (projections) 36 provided on the inner surface 31e of the rear portion 31d at predetermined intervals in the vertical direction, and a plurality of support ribs provided above the plurality of support protrusions 36. 37.

As shown in FIG. 3, the support protrusion 36 is a portion protruding from the inner surface 31 e of the rear portion 31 d toward the left side wall 21 a of the case 21.
The support protrusion 36 includes a front inclined side wall 41 that protrudes from the inner surface 31e of the rear portion 31d toward the left side wall 21a so as to incline toward the rear side of the vehicle body, and a front side of the vehicle body from the inner surface 31e of the rear portion 31d toward the left side wall 21a. The rear inclined side wall 42 protruded so as to be inclined, and the connecting wall 43 provided over the end portions of the front and rear inclined side walls 41, 42.

The front inclined side wall 41 is formed such that the dimension H in the height direction gradually decreases from the inner surface 31e of the rear portion 31d toward the left side wall 21a.
Further, the rear inclined side wall 42 is a wall portion symmetrical to the front inclined side wall 41, and is formed such that the dimension H in the height direction gradually decreases from the inner surface 31e of the rear portion 31d toward the left side wall 21a. .

By providing the support protrusion 36 on the inner surface 31e of the rear part 31d, a locking hole 45 penetrating in the vertical direction is formed by the rear part 31d and the support protrusion 36.
The locking hole 45 is a hole that can be locked (fitted) to the support claw portion 23 of the cooling device 12.

The support claw portion 23 includes a horizontal claw 47 that protrudes from the left side wall 21 a of the case 21 toward the outside of the vehicle body, and a vertical claw 48 that protrudes upward from the end of the horizontal claw 47.
The support claw portion 23 is formed in a substantially L shape with a horizontal claw 47 and a vertical claw 48.

As shown in FIG. 4, a substantially rectangular side wall opening 51 (see also FIG. 5) is formed in a portion of the rear portion 31 d of the side wall duct 31 facing the front and rear inclined side walls 41, 42 and the connecting wall 43. Yes.
The side wall opening 51 communicates with the locking hole 45 (see also FIG. 5).

As shown in FIG. 5, support ribs 37 are provided at predetermined intervals L above the plurality of support protrusions 36 in the rear portion 31 d of the side wall duct 31.
The support rib 37 is a portion protruding from the rear portion 31 d of the side wall duct 31 toward the left side wall 21 a of the case 21.
The support rib 37 is a part that supports (presses) the vertical claw 48 by contacting the vertical claw 48 of the support claw part 23 that is locked in the locking hole 45.

Thus, by engaging (fitting) the locking hole 45 with the vertical claw 48 of the support claw 23, the connecting wall 43 of the support protrusion 36 is locked to the vertical claw 48 and the horizontal claw 47. The bottom surface 43a of the connecting wall 43 is placed on the surface.
Further, the vertical claws 48 are supported by the support ribs 37 by the vertical claws 48 coming into contact with the support ribs 37.

Thereby, the support protrusion 36 is locked to the left side wall 21 a of the case 21.
The side wall duct 31 is attached to the left side wall 21 a of the case 21 via the support protrusion 36 and the support rib 37 by the support protrusion 36 being locked to the left side wall 21 a of the case 21.

As described above, the side wall duct 31 is formed of a rubber material, and the plurality of support protrusions 36 are provided on the side wall duct 31. By forming the support protrusion 36 with a rubber material, the rigidity of the support protrusion 36 can be kept low.
The side wall duct 31 can be attached to the cooling device 12 by locking the support protrusion 36 with low rigidity to the left side wall 21 a of the case 21.

In addition, by suppressing the rigidity of the support protrusion 36 to be low, there is no possibility that the resonance frequency of the cooling device 12 is changed by the side wall duct 31 in a state where the side wall duct 31 is attached to the cooling device 12.
Thereby, it can prevent that the vibration characteristic of the cooling device 12 deteriorates to a noise area by the side wall duct 31.

Further, the locking protrusion 45 is provided in the support protrusion 36, and the plurality of support ribs 37 are provided in the side wall duct 31. Then, the locking hole 45 is locked (fitted) to the vertical claw 48 of the support claw portion 23, and the vertical claw 48 is supported (pressed) by the support rib 37.
Thereby, the side wall duct 31 can be stably attached to the support claw part 23.

As shown in FIG. 5, the locking hole 45 and the side wall opening 51 of the left side wall duct unit 25 of the first embodiment are communicated.
As shown in FIG. 6, the locking hole 45 and the side wall opening 51 can be formed with the fixed mold 55 when the left-side wall duct unit 25 of the first embodiment is formed with the fixed mold 55 and the movable mold 56.

Therefore, after forming the left side wall duct unit 25 of the first embodiment with the fixed die 55 and the movable die 56, the movable die 56 can be opened as shown by the arrow, and the left side wall duct unit 25 can be taken out from the fixed die 55. .
Thereby, the left side wall duct unit 25 of Example 1 can be shape | molded easily.

As shown in FIG. 1, the right side wall duct unit 26 is a member formed of a rubber material (elastic material), like the left side wall duct unit 25.
The right side wall duct unit 26 is a member that is substantially symmetrical with the left side wall duct unit 25, and the same reference numerals as those of the left side wall duct unit 25 are assigned to the respective constituent members and the description thereof is omitted.

Upper ducts 27 are provided on the upper portions 31a and 31a of the left and right side wall ducts 31 and 31, respectively.
The upper duct 27 is provided on the upper side of the cooling device 12 (a radiator or a condenser).
The upper duct 27 is a hard resin (resin) plate material formed in a substantially rectangular shape in plan view.
As an example of the hard resin material, polypropylene resin (PP) is used.

The lower duct 28 is connected (provided) to the lower portions 31b and 31b of the left and right side wall ducts 31 and 31, respectively.
The lower duct 28 is provided on the lower side of the cooling device 12 (a radiator or a condenser).
The lower duct 28 is a hard resin (resin) plate material formed in a substantially rectangular shape in plan view.
As an example of the hard resin material, polypropylene resin (PP) is used.

As described above, the left and right side wall duct units 25 and 26 are arranged on the left and right sides of the cooling device 12, respectively, and the upper and lower ducts 27 and 28 are arranged on the upper and lower sides of the cooling device 12, respectively. Duct units 25 and 26 and upper and lower ducts 27 and 28 are provided so as to surround cooling device 12 (a radiator or a condenser).
That is, the left and right side wall duct units 25 and 26 and the upper and lower ducts 27 and 28 are formed in a substantially rectangular shape in front view.

  Next, the support means of Examples 2 to 4 will be described with reference to FIGS. In addition, in the support means of Examples 2-4, the same code | symbol is attached | subjected about the same / similar member as the support means 32 of Example 1, and description is abbreviate | omitted.

The support means 60 according to the second embodiment will be described.
As shown in FIGS. 7 and 8, the support means 60 has a plurality of support protrusions (protrusions) 61 provided on the inner surface 31e of the rear part 31d at predetermined intervals in the same manner as in the first embodiment. I have.
The support protrusion 61 is a portion in which an upper wall portion (that is, a support rib) 62 is integrally formed (molded) with a rubber material on the upper portion of the support protrusion 36 of the first embodiment.

The support rib 62 has a recess 65 formed by a front wall 66, a rear wall 67 and a bottom wall 68 at the tip.
The bottom wall 68 of the recess 65 is provided at a position away from the connecting wall 43 by the dimension D1 toward the inner surface 31e.
Therefore, a locking hole 71 penetrating in the vertical direction is formed in the recess 65 and the connecting wall 43.

The locking hole 71 communicates with the locking hole 45. The locking hole 45 communicates with the side wall opening 51.
This locking hole 71 is a hole that can be locked (fitted) to the vertical claw 48 of the support claw portion 23 in the same manner as the locking hole 45 of the first embodiment.

  Further, in the left side wall duct unit 25, a substantially rectangular side wall opening 51 is formed in a portion of the rear portion 31 d of the side wall duct 31 facing the front and rear inclined side walls 41, 42 and the connecting wall 43.

Here, in a state where the locking hole 71 is locked (fitted) to the vertical claw 48 of the support claw portion 23, the bottom wall 68 is in contact with the vertical claw 48 of the support claw portion 23.
By bringing the bottom wall 68 into contact with the vertical claw 48 of the support claw 23, the vertical claw 48 is supported by the bottom wall 68 of the support rib 62.
That is, the support rib 62 plays the same role as the support rib 37 of the first embodiment.

As described above, according to the support protrusion 61 according to the second embodiment, the locking hole 71 that can be locked to the support claw 23 of the cooling device 12 and the support claw 23 that is locked to the locking hole 71. The support ribs 62 that support the vertical claws 48 can be integrally formed of a rubber material.
By forming the support protrusion 61 with a rubber material, the rigidity of the support protrusion 61 can be kept low.

By suppressing the rigidity of the support protrusion 61 to be low, there is no possibility of changing the resonance frequency of the cooling device 12 by the side wall duct 31 in a state where the side wall duct 31 is attached to the cooling device 12.
Thereby, it can prevent that the vibration characteristic of the cooling device 12 deteriorates to a noise area by the side wall duct 31.

Furthermore, the support protrusion 61 is a part in which the locking hole 71 and the support rib 62 are integrally formed of a rubber material.
Therefore, the vertical claw 48 of the support claw part 23 can be supported (pressed) by the support rib 62 in a state where the locking hole 71 is locked to the support claw part 23.
Thereby, the side wall duct 31 can be stably attached to the support claw part 23.
In addition, simplification of the configuration can be achieved by collectively providing the locking protrusion 71 and the support rib 62 in the support protrusion 61.

As shown in FIG. 8, the locking hole 71, the locking hole 45, and the side wall opening 51 of the left side wall duct unit 25 of the second embodiment are communicated.
As shown in FIG. 9, when forming the left-side wall duct unit 25 of the second embodiment with the fixed mold 75 and the movable mold 76, the locking hole 71, the locking hole 45, and the side wall opening 51 are formed with the fixed mold 75. can do.

Therefore, after forming the left side wall duct unit 25 of the second embodiment with the fixed mold 75 and the movable mold 76, the movable mold 76 is opened as shown by the arrow, and the left side wall duct unit 25 of the second embodiment is removed from the fixed mold 75. It can be taken out.
Thereby, the left side wall duct unit 25 of Example 2 can be shape | molded easily.

A support unit 80 according to the third embodiment will be described.
As shown in FIGS. 10 and 11, the support means 80 has a plurality of support protrusions (protrusions) 81 provided at predetermined intervals in the vertical direction on the inner surface 31e of the rear part 31d, as in the first embodiment. I have.
The support protrusion 81 is obtained by providing a rib opening (opening) 82 on the support rib 62 of the support protrusion 61 of the second embodiment.

Specifically, a recess 83 is formed at the base of the support rib 62 by a front wall 84, a rear wall 85 and a bottom wall 86.
The bottom wall 86 of the recess is provided at a position away from the inner surface 31e of the rear part 31d toward the left side wall 21a of the case 21 by a dimension D2.
Therefore, a rib opening 82 penetrating in the vertical direction is provided at the base of the support rib 62 at the inner surface 31e and the recess 83 of the rear portion 31d.
The rib opening 82 is communicated with the locking hole 45 and the side wall opening 51.

Thus, according to the support protrusion 81 according to the third embodiment, the rigidity of the support protrusion 81 can be further reduced by providing the rib opening 82 at the base of the support rib 62.
As a result, it is possible to better prevent the vibration characteristics of the cooling device 12 from being deteriorated into the noise region by the side wall duct 31.

As shown in FIG. 11, the locking hole 71, the locking hole 45, the side wall opening 51, and the rib opening 82 of the left side wall duct unit 25 of the third embodiment are communicated.
As shown in FIG. 12, when forming the left side wall duct unit 25 of the third embodiment with the fixed die 95 and the movable die 96, the locking hole 71, the locking hole 45, the side wall opening 51 and the rib opening 82 are formed. The fixed mold 95 can be used for molding.

Therefore, after molding the left side wall duct unit 25 of the third embodiment with the fixed mold 95 and the movable mold 96, the movable mold 96 is opened as shown by the arrow, and the left side wall duct unit 25 of the third embodiment is removed from the fixed mold 95. It can be taken out.
Thereby, the left side wall duct unit 25 of Example 3 can be shape | molded easily.

A support unit 100 according to the fourth embodiment will be described.
As shown in FIGS. 13 and 14, the support means 100 has a plurality of support protrusions (protrusions) 101 provided on the inner surface 31e of the rear portion 31d at predetermined intervals in the vertical direction, as in the first embodiment. I have.

The support protrusion 101 is a part formed of a rubber material.
The supporting protruding portion 101 includes a protruding portion 102 that protrudes downwardly from the inner surface 31e of the rear portion 31d toward the left side wall 21a of the case 21, and a front side 102a of the protruding portion 102 to the inner surface 31e of the rear portion 31d. It has the front overhang | projection site | part 103 projected toward the direction, and the back overhang | projection site | part 104 projected toward the inner surface 31e of the rear part 31d from the rear side 102b of the protrusion part 102. FIG.

The protruding portion 102 is a substantially rectangular portion formed in the width dimension W1 and has a locking hole 106 that can be locked (fitted) to the support claw portion 23 of the cooling device 12.
The locking hole 106 is formed in a substantially rectangular shape, the upper side 106a is formed substantially vertically, and the lower side 106b is formed substantially horizontal.
Here, in the protruding portion 102, a portion between the rear portion 31 d of the side wall duct 31 and the upper side 106 a is defined as a support rib 107.

This locking hole 106 is a hole that can be locked (fitted) to the vertical claw 48 of the support claw portion 23 in the same manner as the locking hole 45 of the first embodiment.
Here, in a state where the locking hole 106 is locked to the vertical claw 48 of the support claw portion 23, the upper side 106 a comes into contact with the vertical claw 48 of the support claw portion 23. Thereby, the vertical claw 48 can be supported (pressed) by the support rib 107.
That is, the support rib 107 plays the same role as the support rib 37 of the first embodiment.

The front projecting part 103 is a substantially triangular part projecting from the front side 102a of the projecting part 102 so as to be inclined toward the front of the vehicle body.
The rear projecting part 104 is a substantially triangular part projecting from the rear side 102b of the projecting part 102 toward the rear of the vehicle body.
Therefore, the interval dimension W2 between the lower base part 103a of the front projecting part 103 and the lower base part 104a of the rear projecting part 104 is set larger than the width dimension W1 of the projecting part 102.

As described above, by forming the support protrusion 101 according to the fourth embodiment with a rubber material, the rigidity of the support protrusion 101 can be kept low.
By suppressing the rigidity of the support protrusion 101 to a low level, there is no possibility that the side wall duct 31 changes the resonance frequency of the cooling device 12 in a state where the side wall duct 31 is attached to the cooling device 12.
Thereby, it can prevent that the vibration characteristic of the cooling device 12 deteriorates to a noise area by the side wall duct 31.

Moreover, according to the support protrusion part 101 which concerns on Example 4, the protrusion part 102 protruded in the inclination state of the downward slope, and the locking hole 106 was provided in the protrusion part 102. FIG.
The locking hole 106 is locked to the support claw portion 23, and the bottom surface 102 c of the protruding portion 102 is placed on the horizontal claw 47.
Thereby, the side wall duct 31 can be stably attached to the support claw part 23.

Here, the side wall duct 31 has a side wall opening (opening) 108 formed below the support protrusion 101 in the rear portion 31d.
Thus, by forming the side wall opening 108 below the support protrusion 101 in the side wall duct 31, the rigidity of the support protrusion 101 can be further reduced.
As a result, it is possible to better prevent the vibration characteristics of the cooling device 12 from being deteriorated into the noise region by the side wall duct 31.

As shown in FIG. 14, the protruding portion 102 protrudes in a downwardly inclined state. Further, the locking hole 106 has an upper side 106a formed substantially vertically and a lower side 106b formed substantially horizontal.
As shown in FIG. 15, when the left side wall duct unit 25 of Example 4 is formed with the fixed mold 115 and the movable mold 116, the side wall opening 108 is formed with the fixed mold 115, and the locking hole 106 is formed with the movable mold 116. Can be molded.

Therefore, after forming the left side wall duct unit 25 of the fourth embodiment with the fixed mold 115 and the movable mold 116, the movable mold 116 is opened as shown by the arrow, and the left side wall duct unit 25 of the fourth embodiment is removed from the fixed mold 115. It can be taken out.
Thereby, the left side wall duct unit 25 of Example 4 can be shape | molded easily.

The vehicle air duct structure 10 according to the present invention is not limited to the first to fourth embodiments described above, and can be changed or improved as appropriate.
For example, the cooling device 12, the air guide duct structure 16, the support claw 23, the side wall duct 31, the support protrusions 36, 61, 81, and 101, the support ribs 37, 62, and 107 shown in the first to fourth embodiments. The shapes and configurations of the blind holes 45, 71, 106, the rib openings 82, the side wall openings 108, and the like are not limited to those illustrated, and can be changed as appropriate.

  INDUSTRIAL APPLICABILITY The present invention is suitable for application to an automobile provided with side ducts on the left and right sides of a cooling device, and having a wind guide duct structure that guides air in front of the vehicle to the cooling device side as cooling air.

  DESCRIPTION OF SYMBOLS 10 ... Car body front part structure, 12 ... Cooling equipment, 16 ... Air guide duct structure (air guide duct structure for vehicles), 23 ... Supporting claw part, 31 ... Side wall duct, 36, 61, 81, 101 ... Support protrusion part (Projections), 37, 62, 107 ... support ribs, 45, 71, 106 ... locking holes, 82 ... rib openings (openings), 108 ... side wall openings (openings).

Claims (5)

Side wall ducts are provided on the left and right sides of the cooling device, and in the vehicle air guide duct structure for guiding the air ahead of the vehicle to the cooling device side as cooling air with the side wall ducts,
The side wall duct is
A projecting portion that is formed of an elastic material and projects toward the cooling device is provided,
An air duct structure for a vehicle, wherein the protruding portion is locked to the cooling device. The protruding portion has a locking hole that can be locked to a support claw portion of the cooling device,
The wind guide duct structure for a vehicle according to claim 1, wherein the side wall duct has a support rib that supports the support claw portion locked in the locking hole. The protrusion is
A locking hole that can be locked to the support claw portion of the cooling device;
A support rib for supporting the support claw portion locked in the locking hole;
The vehicle air duct structure according to claim 1, wherein: The protrusion is
While projecting in a downward slope toward the cooling device, and having a locking hole that can be locked to the support claw portion of the cooling device,
The side wall duct is
The air duct structure for a vehicle according to claim 1, wherein an opening is formed below the protrusion.   The wind guide duct structure for a vehicle according to claim 2, wherein an opening is provided in the support rib.

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