JP4099368B2 - instrument panel - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an instrument panel, and particularly relates to a measure for improving the holding strength of an instrument panel body in which an air conditioning duct is disposed on the back side and improving sound insulation.
[0002]
[Prior art]
Conventionally, as disclosed in, for example, Patent Documents 1 to 4, an instrument panel having a structure in which a front end portion thereof is attached to a vehicle body such as a cowl panel is generally known. In Patent Document 1, an instrument panel body can be mounted smoothly by providing hook-shaped sandwiching portions at both ends in the vehicle width direction of the instrument panel body and fitting a cowl panel into the sandwiching portions. It is disclosed.
[0003]
Further, in Patent Document 2, a flange portion is extended to the rear upper end portion of the cowl panel, the flange portion is disposed below the front lower edge portion of the windshield, and a rib is provided on the front end portion of the instrument panel. It is disclosed that the rigidity of the instrument panel is improved and the assembly of the instrument panel to the cowl panel is facilitated by providing the rib and entering the flange portion below the flange portion.
[0004]
Furthermore, Patent Document 3 discloses that a positioning groove is provided in a front end portion of a blow-molded instrument panel, and the instrument panel is positioned by fitting a projection of a cowl panel into the groove. ing.
[0005]
Furthermore, in Patent Document 4, a defroster nozzle is disposed on the back surface of the instrument panel, a boss is projected from the front end surface of the defroster nozzle, and a retainer is provided on a cowl panel facing the boss. In addition, it is disclosed that the assembly rigidity of the instrument panel is secured by press-fitting a cowl pin into the retainer.
[0006]
On the other hand, as disclosed in Patent Documents 1 and 5, for example, a sound insulation member is provided as an instrument panel between an instrument panel main body and a front window or a cowl panel. In the above-mentioned Patent Document 1, the cowl panel is composed of an upper panel and a lower panel, and a fitting portion of both the panels is attached to the sandwiching portion, while a soft material is included in the fitting portion, thereby providing an instrument panel main body. It is disclosed to prevent a low-frequency sound generated between the horn and the cowl panel.
[0007]
Further, in Patent Document 5, the sound insulation member is constituted by a lip portion that abuts the front window and an engagement portion, and the engagement portion of the sound insulation member is engaged with the instrument panel main body, whereby an instrument panel is obtained. It is disclosed that a gap between the main body and the front window is sealed to prevent noise from entering the vehicle interior.
[0008]
[Patent Document 1]
Japanese Patent Laid-Open No. 2002-12059
[Patent Document 2]
Japanese Patent Laid-Open No. 11-48829
[Patent Document 3]
Japanese Utility Model Publication No. 7-50276 [0011]
[Patent Document 4]
Utility Model Registration No. 2592408 gazette [0012]
[Patent Document 5]
Japanese Patent Laid-Open No. 11-115551
[Problems to be solved by the invention]
However, the conventional devices disclosed in Patent Documents 1 to 3 have a problem that the holding rigidity of the instrument panel body is not sufficient because the instrument panel body is directly attached to the cowl panel. Further, even in the conventional one disclosed in Patent Document 4, in order to join the defroster nozzle and the cowl panel with the cowl pin, not only the holding rigidity of the instrument panel main body is insufficient, but also the cowl pin is necessary and the number of parts is reduced. Increases, making it difficult to reduce costs.
[0014]
On the other hand, in the conventional device disclosed in Patent Document 5, the sound insulation member is directly attached to the front window, and the instrument panel is attached to the engaging portion of the sound insulation member, so that direct sunlight is applied through the front window. Considering this, the problem of durability of the sound insulation member arises, and it is considered that the realization is difficult. There is also a problem that the sound insulating member made of EPDM is expensive because it is a constituent member made of a lip portion and an engaging portion.
[0015]
Further, in the one disclosed in Patent Document 1, since the soft material is injected into the mating portion, the sealing property varies depending on the injection amount of the soft member, and a sufficient sound insulation effect is obtained. Not happening can happen.
[0016]
Therefore, the present invention has been made in view of such a point, and an object of the present invention is to provide an instrument panel by applying a predetermined device to an air conditioning duct disposed on the back side of the instrument panel body. It is to improve the sound insulation as well as to improve the holding strength of the main body.
[0017]
[Means for Solving the Problems]
To achieve the above object, the present invention, the flange portion is provided on the air-conditioning duct front portion, which seals the gap between the vehicle body facing the front edge portion of the instrument panel main body and said instrument panel body elastic The seal member is mounted so as to straddle the front end edge portion of the flange portion and the front end edge portion of the instrument panel main body.
[0018]
Specifically, Insutoru The invention according to claim 1, the air conditioning air feed conditioning duct for feeding is disposed on the back side of Lee Nsu Torr instrument panel body, and to blowing the conditioned air from the air conditioning duct toward the passenger compartment On the premise of the instrument panel, the air conditioning duct extends in the vehicle width direction and is fixed to the back side of the instrument panel main body at the front side, and the front side of the air conditioning duct is along the front side of the instrument panel main body. A flange portion extending in a superposed state is provided, and a front end edge portion of the flange portion is formed with an upright portion extending substantially upward, a drooping portion or a thick portion extending substantially downward, and the standing portion, the drooping portion or the thickness. The front surface of the meat part is set to be substantially flush with the front edge of the instrument panel body, and the front edge of the instrument panel body and the upright part of the flange part, the hanging part or An elastic seal member that seals the gap between the thick wall portion and the vehicle body facing the same extends over the front edge of the instrument panel main body and the upright portion, hanging portion, or thick wall portion of the flange portion. The vehicle interior and the back side of the instrument panel are shut off.
[0019]
That is, in the invention of claim 1, provided with securing the front portion of the air-conditioning duct to the rear surface of the instrument panel main body, a flange portion extending in a polymerized state along the front side of the instrument panel main body to the front side Therefore, the rigidity of the front side part of the instrument panel main body can be improved. Further, an elastic seal member for sealing a gap between the front end edge of the instrument panel main body and the rising part, the hanging part or the thick wall part of the flange part, and the vehicle body facing them is provided at the front end edge of the instrument panel main body. Part and the rising part, the hanging part or the thick part of the flange part, and the vehicle interior and the back side of the instrument panel are cut off, increasing the adhesion area of the elastic seal member, As a result, it is possible to easily attach the elastic seal member, and it is possible to improve the sound insulation of, for example, engine sound transmitted from the engine room side. Furthermore, since a general-purpose material such as a sponge can be used as the elastic seal member, the cost can be reduced. In addition, it is possible to avoid a situation where only the front end of the instrument panel body is made thicker in order to increase the bonding area of the elastic seal member, there is no restriction on the direction of mold removal during molding, and the design of the instrument panel body is free. The degree can be improved.
[0020]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[0021]
As shown in FIG. 1, an instrument panel 1 according to the present embodiment has an instrument panel main body 5 and is disposed on the front side of the passenger compartment. The vehicle width direction on the back side of the instrument panel main body 5 is shown in FIG. An air conditioning unit (not shown) for generating conditioned air is disposed in the center of the air conditioning unit, and a supply port for sending the conditioned air is provided on the upper surface of the case of the air conditioning unit. A front defroster outlet 13 that extends in the vehicle width direction and blows out air-conditioned air toward the inner surface of the front window 11 (see FIG. 2) is provided at the vehicle front side of the upper surface portion of the instrument panel main body 5. In the vicinity, there are side defroster outlets 15 through which air-conditioned air blows toward the side windows (not shown), respectively, and further under the side defroster outlets 15 are air-conditioned toward the left and right sides of the passenger compartment. A side vent outlet 16 from which air is blown is formed, and a center vent outlet 17 from which air-conditioned air is blown out toward the center of the passenger compartment is formed at a substantially central portion between the side vent outlets 16. Yes. An air conditioning duct 24 that guides the air-conditioned air generated by the air-conditioning unit to the air outlets 13 and 15 is disposed over the entire vehicle width direction on the back side of the instrument panel body 5. The conditioned air to the side vent outlet 16 and the center vent outlet 17 is supplied by an air conditioning duct (not shown).
[0022]
As shown in FIGS. 2 and 3, the upper surface portion of the instrument panel body 5 includes a rear side portion 20, an intermediate portion 21 protruding upward from the rear side portion 20, and an upper side than the intermediate portion 21. The front defroster outlet 13 is formed in the intermediate portion 21.
[0023]
The air conditioning duct 24 includes a tubular duct body 29 in which a lower member 26 and an upper member 27 are assembled in a closed cross-sectional structure, and a front end portion of the duct body 29 in the vehicle front-rear direction, that is, an upper end portion of the lower member 26. A flange portion 31 extending in a superposed state along the front side portion 22 of the instrument panel main body 5 is provided. The lower member 26 has a substantially L-shaped longitudinal section that bulges substantially downward in the front and is formed to extend in the vehicle width direction, while the upper member 27 bulges upward on the rear side and extends in the vehicle width direction. It is formed to extend. The upper member 27 is engaged with the lower member 26 by engaging the engaging claw 33 provided at the rear end thereof with the engaging portion 34 provided at the rear end of the lower member 26. Has been.
[0024]
An air inlet 36 through which air-conditioning air from the air-conditioning unit flows is formed at the center of the rear portion of the lower member 26 in the vehicle width direction, and the front defroster outlet 13 is formed at the front upper portion of the duct body 29. An air outlet 37 that communicates with the air outlet 37 is formed.
[0025]
The lower member 26 of the air conditioning duct 24 is vibration welded at the main body fixing portion 39 on the front side of the front defroster outlet 13 on the back surface of the intermediate portion 21 of the instrument panel main body 5, and the upper end portion of the upper member 27 is The rear surface of the intermediate portion 21 is in contact with the rear side of the front defroster outlet 13.
[0026]
The lower member 26 is formed with an extended portion 41 extending upward and forward along the instrument panel main body 5 from the main body fixing portion 39, and the flange portion 31 is formed at the upper end portion of the extended portion 41. Are connected together.
[0027]
That is, the flange portion 31 is formed integrally with the lower member 26 of the duct main body 29 through the extension portion 41, and the upper end portion of the extension portion 41 is connected to the instrument panel main body 5. A standing portion 44 is formed as a front end edge extending substantially upward toward the front end edge 46 of the instrument panel main body 5 at the front end thereof. The front surface of the upright portion 44 is substantially flush with the front edge portion 46 of the instrument panel body 5.
[0028]
The upper surface of the flange portion 31 has a flange fixing portion 48 that is vibration welded to the back surface of the front side portion 22 of the instrument panel body 5, and the flange fixing portion 48 is an intermediate portion in the vehicle longitudinal direction of the flange portion 31. It is formed in the part.
[0029]
The lower member 26 of the air conditioning duct 24 is formed with an instrument panel positioning portion 52 that fits with a cowl panel 50 as a vehicle body on the front side of the instrument panel body 5. That is, the instrument panel positioning portion 52 is formed on the front side portion of the lower member 26 of the air conditioning duct 24 fixed to the instrument panel body 5 by vibration welding.
[0030]
The instrument panel positioning portions 52 are provided at a plurality of locations (5 locations in this example) in the vehicle width direction. Each of the instrument panel positioning portions 52 includes a front wall portion 65 that extends obliquely from the rear side of the flange fixing portion 48 toward the front and a lower end of the front wall portion 65 (an extended lower end). An upper projection 54 formed by a horizontal surface portion (bottom portion) 58 that extends integrally in a rearward and substantially horizontal manner, and a lower side that obliquely extends from the front side of the main body fixing portion 39 downward toward the front of the vehicle. And a protrusion 56. A horizontal plane portion (substantially horizontal portion) 56a extending in front of the vehicle is formed in a substantially parallel portion of the lower protrusion 56 in the vehicle front-rear direction. An opening 60 is formed at the center in the vehicle width direction of the horizontal surface portion 58 of the upper projection 54. The lower protrusion 56 is provided directly below the opening 60 so as to face the opening 60, and a gap is formed between the horizontal surface 58 of the upper protrusion 54 and the horizontal surface 56a of the lower protrusion 56. ing. The opening 60 is formed by positioning a part of the molding die when the lower protrusion 56 is molded.
[0031]
On the back surface of the upper protrusion 54, an upper rib 62 that increases the vertical rigidity of the upper protrusion 54 is integrally formed between the main body of the flange 31 and the front wall 65 of the upper protrusion 54. Is formed. In addition, a lower rib 63 that increases the vertical rigidity of the lower protrusion 56 is integrally formed on the lower surface of the lower protrusion 56 across the lower member 26.
[0032]
The cowl panel 50 includes an upper panel 67 and a lower panel 69. The upper panel 67 includes an upper surface portion 71 extending in the direction along the front window 11, and the upper protrusion portion below the upper surface portion 71. 54, a plate-like upper projecting portion 72 extending in parallel with the horizontal surface portion 58, and a rear surface portion 73 extending in the substantially vertical direction connecting the rear end of the upper surface portion 71 and the front end of the upper projecting portion 72. In the rear surface portion 73, the upper panel 67 is formed substantially parallel to the upright portion 44 with a predetermined gap between the front edge portion 46 of the instrument panel body 5 and the upright portion 44 of the flange portion 31. Has been.
[0033]
The lower panel 69 extends substantially parallel to the upper surface 71 below the upper surface 71 of the upper panel 67 and is bent upward at the rear end thereof, and the rear end of the bottom 74 And a plate-like lower protrusion 76 extending rearward of the vehicle in a state substantially parallel to the upper protrusion 72 of the upper panel 67.
[0034]
A plate that protrudes rearward of the cowl panel 50 in a parallel state with a predetermined gap in the vertical direction by the upper protrusion 72 and the lower protrusion 76 at the rear end of the cowl panel 50 in the vehicle width direction. A protruding portion 75 is formed. The height in the vertical direction of the projection 75 corresponds to the gap height between the bottom 58 of the upper projection 54 and the substantially horizontal portion 56 a of the lower projection 56 in each instrument panel positioning portion 52. The rear end portion (front end portion) of the upper protrusion 72 is bent downward and connected to the rear end portion (front end portion) of the lower panel 69, whereby both the upper and lower panels are connected. 67 and 69 are superposed at the rear end and welded together. Thereby, the height at the rear end portion (front end portion) of the protruding portion 75 is lower than the height at the front end portion (base end portion).
[0035]
Each of the instrument panel positioning portions 52 is externally fitted to the protrusion 75 at a plurality of locations in the vehicle width direction. With this structure, each of the instrument panel positioning portions 52 is connected to the horizontal surface of the upper protrusion 54. 58 and the horizontal projection 56a of the lower projection 56 is inserted into the gap between the horizontal planes 58 and 56a at a plurality of positions in the vehicle width direction. The front end of the lower panel 69 extends downward, and an engine room (not shown) is formed in front of it.
[0036]
An elastic seal member 77 that seals the gap portion is attached to the gap portion between the rear surface portion 73 of the upper panel 67 and the front end edge portion 46 of the instrument panel body 5 and the standing portion 44 of the flange portion 31. ing. The elastic seal member 77 is mounted across the front end edge portion 46 of the instrument panel body 5 and the upright portion 44 to block the vehicle interior from the back side of the instrument panel 1. In addition, an elastic seal member 79 that seals the gap is also attached to the gap between the front window 11 and the front end of the instrument panel body 5. These elastic seal members 77 and 79 are for reducing engine noise transmitted to the passenger compartment.
[0037]
Therefore, according to the present embodiment, the flange portion 31 is extended in a superposed state along the front side portion of the instrument panel body 5 on the front side portion of the duct body 29 fixed to the front back surface of the instrument panel body 5. Since it protrudes and it fixed to the front side part back surface of this instrument panel main body 5, the rigidity of the front side part of the instrument panel main body 5 can be improved. Further, instrument panel positioning portions 52 are formed at a plurality of locations in the vehicle width direction on the front side portion of the duct body 29, and the protrusions 75 of the cowl panel 50 projecting toward the rear of the vehicle in the entire vehicle width direction, Since it is positioned so as to be sandwiched from above and below by both the horizontal surface portions 58 and 56a of the upper and lower projections 54 and 56 of the instrument panel positioning portion 52, the duct is fixed to the instrument panel body 5 and has improved rigidity. The instrument panel positioning portion 52 is formed on the front side portion 29, so that the holding rigidity of the air conditioning duct 24 can be remarkably improved, and the holding rigidity of the instrument panel body 5 can be remarkably improved. Thereby, the positioning accuracy with respect to the vehicle body of the instrument panel main body 5 can be improved. Further, since the horizontal planes 58 and 56a of the upper and lower projections 54 and 56 of each instrument panel positioning part 52 sandwich the protrusion 75 of the cowl panel 50 from above and below, the air conditioning duct 24 (instrument panel body 5) The holding stability can be ensured.
[0038]
Further, a flange portion 31 that extends in a superposed state along the front side portion 22 of the instrument panel main body 5 and is joined to the instrument panel main body 5 by the flange fixing portion 48 is provided on the front side portion of the air conditioning duct 24. Therefore, the rigidity of the instrument panel main body 5 can be improved. Further, an elastic sealing member for sealing a gap between the front end edge portion 46 of the instrument panel main body 5 and the standing portion 44 of the flange portion 31 and the cowl panel 50 facing the front end edge portion 46 of the instrument panel main body 5. 77 is mounted across the front end edge 46 of the instrument panel main body 5 and the upright portion 44 of the flange portion 31, so that the adhesion area of the elastic seal member 77 to the instrument panel main body 5 is increased. The elastic seal member 77 can be easily attached, and the sound insulation of the engine sound transmitted from the engine room side can be improved.
[0039]
Furthermore, since a general-purpose material such as a sponge can be used as the elastic seal member 77, the sound insulation can be improved at a low cost.
[0040]
Moreover, since the situation where only the front end part of the instrument panel main body 5 is thickened to increase the bonding area of the elastic seal member 77 is avoided, there is no restriction of the demolding direction at the time of molding, and the instrument panel main body The degree of freedom of design 5 can be improved.
[0041]
Other Embodiments of the Invention
In the above-described embodiment, the standing portion 44 is formed at the front end portion of the flange portion 31 to increase the bonding area of the elastic seal member 77. Instead, the flange portion 31 includes the standing portion 44 at the front end portion. May be provided, and it may be configured to be a thick portion having a substantially uniform thickness over the entire vehicle longitudinal direction. Moreover, you may form the standing part 44 so that the front-end part of the flange part 31 may extend below.
[0042]
In the above embodiment, the protrusion 75 of the cowl panel 50 is formed over the entire vehicle width direction. Instead, the protrusion 75 corresponds to the instrument panel positioning portion 52 of the air conditioning duct 24. You may form in several places with a predetermined space | interval in the width direction.
[0043]
Further, in the above embodiment, the instrument panel positioning portions 52 of the air conditioning duct 24 are formed at a plurality of locations (five locations), but this number can be increased or decreased.
[0044]
【The invention's effect】
As described above, according to the invention of claim 1, is provided with the flange portion on the front side is fixed to the front portion of the air-conditioning duct to the rear surface of the instrument panel body, the front portion of the instrument panel main body The rigidity of can be improved. In addition, since the elastic seal member is mounted across the front edge of the instrument panel main body and the upright part, the hanging part or the thick part of the flange part, the vehicle interior and the back side of the instrument panel are shut off. In addition, it is possible to easily attach the elastic seal member and to improve sound insulation such as engine sound transmitted from the engine room. Furthermore, since a general-purpose material such as a sponge can be used as the elastic seal member, the cost can be reduced. In addition, it is possible to avoid a situation where only the front end of the instrument panel main body is made thicker in order to increase the adhesion area of the elastic seal member to the instrument panel, and there is no restriction of the demolding direction during molding, and the instrument panel The degree of freedom in designing the main body can be improved.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an overall configuration of an instrument panel according to an embodiment of the present invention.
FIG. 2 is an enlarged cross-sectional view taken along line AA in FIG.
FIG. 3 is an enlarged cross-sectional view taken along line BB in FIG.
[Explanation of symbols]
5 Instrument panel body 24 Air conditioning duct 31 Flange part 44 Standing part (front edge)
46 Front edge 50 Cowl panel (car body)
52 Instrument panel positioning part 77 Elastic seal member

Claims (1)

In the instrument panel, an air conditioning duct for air conditioning air supply is arranged on the back side of the instrument panel main body, and the air conditioning air from the air conditioning duct is blown out toward the vehicle interior.
The air conditioning duct extends in the vehicle width direction and is fixed to the back surface of the instrument panel body at the front side portion,
The front side of the air conditioning duct is provided with a flange that extends in a superposed state along the front side of the instrument panel body,
On the front edge portion of the flange portion, an upright portion extending substantially upward, a hanging portion extending substantially downward or a thick portion is formed,
The front part of the standing part, the hanging part or the thick part is set to be substantially flush with the front edge of the instrument panel body,
The front end edge of the instrument panel main body is an elastic seal member that seals the gap between the front end edge of the instrument panel main body and the rising part, the hanging part or the thick part of the flange part, and the vehicle body facing them. The instrument panel is mounted across the upper part and the upright part, the hanging part or the thick part of the flange part, and shuts off the vehicle interior and the back side of the instrument panel.

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