JP2000168401A - Instrument panel for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the entire appearance from being damaged by extending the peripheries of an opening and a sub-panel to the front edge part, front-seat passenger-side edge part, side edge part, and lateral center part of an instrument panel body. SOLUTION: A number of locking claws to be engaged with an instrument panel body on the edge of an opening 20 are formed on the peripheral part inner surface of a sub-panel 13. The sub-panel 13 is engagingly locked to the instrument panel body by the locking claws. An opening capable of swelling the air bag of an air bag unit 18 is formed on the front-seat passenger side of the instrument panel body. The front edge of the opening 20 is extended along a ridge line 11e that is the rear edge of a front wall 11a, the rear edge thereof is extended along a front-seat passenger side edge part (rear edge) 21, and one side edge thereof is extended along the side edge of the instrument panel body. Since most of the front-seat passenger-side part of the instrument panel is formed into the sub-panel 13, the entire appearance is never damaged.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an instrument panel for a vehicle in which a lid portion which is deployed by an inflation pressure of an airbag is provided corresponding to a portion on a passenger seat side.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 22, for example, as shown in FIG. 22, in order to ensure the safety of an occupant in a passenger seat at the time of a vehicle collision, a passenger seat (not shown) side of an instrument panel 1 is provided. , The airbag unit 2 is activated at the time of a vehicle collision, and the airbag (not shown) inflates from the airbag unit 2 to the passenger seat side. It is supposed to be able to catch the upper body.

In the instrument panel 1, in order to allow the airbag to inflate to the passenger seat side, a cleavage groove 3 that is cleaved by the inflation pressure of the airbag is provided on the inner surface of the assistant attendant side. The air bag grid portions 4 and 4 which are developed by the cleavage are formed in the passenger seat side portion so that the cleavage groove 3 is not visible from the outer surface side. By making the cleavage groove 3 a seamless structure that cannot be seen from the outer surface in this way, the overall appearance is not impaired.

[0004]

However, FIG.
In the structure shown in the above, the airbag unit 2 is operated,
When the vehicle is repaired after the airbag lids 4, 4 have been deployed by the inflation pressure of the airbag, the entire instrument panel 1 needs to be replaced, which has a problem that the repair cost is high.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an instrument panel for a vehicle which can reduce repair costs without impairing the overall appearance.

[0006]

In order to achieve this object, an invention according to claim 1 is characterized in that an opening for inflating an airbag disposed in a passenger seat side portion of an instrument panel body is provided on the instrument panel. The sub-panel is formed in the panel main body, the opening is closed by the sub-panel, and the sub-panel is formed with a cleavage groove formed on the inner surface and cleaved by the inflation pressure of the airbag and an airbag lid portion developed from a portion of the cleavage groove. A peripheral edge of the opening and the sub-panel extending to a front edge portion, a passenger seat side edge portion, a side edge portion, and a vehicle width direction center portion of the instrument panel body. Vehicle instrument panel.

[0007] According to this configuration, most of the portion of the instrument panel on the passenger seat side is a sub-panel, so that the overall appearance is not impaired. Further, after the airbag grid is deployed by the inflation of the airbag, the sub-panel may be replaced, so that the repair cost can be reduced.

According to a second aspect of the present invention, a ridge extending to both left and right ends is formed at a front edge of the instrument panel main body, and a front edge of the sub-panel is formed along the ridge. And According to this configuration, since the ridgeline originally formed at the front edge of the instrument panel body and the front edge of the sub-panel match,
The front edge of the sub-panel appears to be formed integrally with the instrument panel body.

According to a third aspect of the present invention, a central panel having side edges extending in the front-rear or vertical direction is attached to a central portion of the instrument panel main body, and one side edge of the sub-panel is formed of the central panel. It is characterized by extending along the side edge. According to this configuration, for example, a cluster lid, a lid provided with a louver for blowing out center air, a side edge of a central panel such as a member provided with a liquid crystal navigation panel, and a side edge of a sub panel correspond to each other. A feeling of unity between the instrument panel main body and the sub-panel at the center of the instrument panel in the vehicle width direction is obtained, and the appearance does not deteriorate.

According to a fourth aspect of the present invention, the air bag grid portion is formed at a central portion of the sub panel, and an air conditioning hole is formed at a side edge of the sub panel. According to this configuration, most of the left half of the instrument panel is included in the sub-panel, so that the instrument panel is more compared to the case where the airbag lid is partially provided on the passenger side of the instrument panel. The sense of unity with the main body is improved.

According to a fifth aspect of the present invention, a support projection for supporting an airbag unit disposed in the instrument panel main body is formed on an inner surface of the sub panel. According to this configuration, the airbag unit can be supported by the instrument panel and stabilized.

The invention according to claim 6 is characterized in that the sub-panel is formed by two colors of different materials from a central air bag grid portion and a peripheral panel body portion. According to this configuration, the airbag grid portion of the subpanel is formed of a material that is easily bent, and the periphery of the airbag grid portion is formed of a material having high rigidity. By using the air bag unit, the air bag grid portion can be easily deployed when the air bag unit is operated.

According to a seventh aspect of the present invention, the sub-panel has a structure in which a laminate sheet is bonded to a core material, and the core material has a central air bag grid portion and a panel main body portion on the periphery thereof as separate members. The airbag lid portion and the panel body portion are connected by a fitting structure. According to this configuration, the core material can be obtained easily and inexpensively without using a two-color molding machine. Further, by using a vacuum forming machine for bonding the core material and the laminate sheet, the cost required for the mold can be reduced. As described above, the sub-panel can be easily and inexpensively obtained.

[0014] The invention according to claim 8 is that the surface of the cleavage groove portion has
The tensile strength at −40 ° C. is 250 × 9.8 N / cm^Two(2
50Kgf / cm^Two) To 500 × 9.8 N / cm^Two(50
0Kgf / cm^Two), The elongation is 50% or more,
Tensile strength is 10 × 9.8N / cm^Two(10Kgf / cm^Two)
As described above, the tensile strength at 85 ° C. is 10 × 9.8 N / cm ^Two
(10Kgf / cm^Two) To 100 × 9.8 N / cm^Two(1
00Kgf / cm^Two), The elongation is 150-500
(%) And the tear strength is 5 × 9.8 N / cm^Two(5Kgf
/ Cm^Two) It is characterized by using the above materials. this
According to the composition, the elongation at low temperature is relatively high as the skin
The use of material allows the skin to fly when the airbag is deployed.
Scattering can be prevented. Also, as a skin at high temperatures
By using a material with relatively low elongation, the deployment time
Can be prevented from being delayed.

According to a ninth aspect of the present invention, the surface of the cleavage groove portion is
The tensile strength at −40 ° C. is 250 × 9.8 N / cm^Two(2
50Kgf / cm^Two) To 500 × 9.8 N / cm^Two(50
0Kgf / cm^Two), The elongation is 50% or more,
Tensile strength is 10 × 9.8N / cm^Two(10Kgf / cm^Two)
Above, the tensile strength at 23 ° C. is 50 × 9.8 N / cm ^Two
(50Kgf / cm^Two) To 100 × 9.8 N / cm^Two(1
00Kgf / cm^Two) And the elongation percentage is 100 (%) or more
With a tear strength of 10 × 9.8 N / cm^Two(10Kgf /
cm^Two) The tensile strength at 85 ° C. is 10 × 9.8 N
/ Cm^Two(10Kgf / cm^Two) To 100 × 9.8 N / c
m^Two(100kgf / cm^Two) And the elongation percentage is 150-50
0 (%), tear strength 5 × 9.8 N / cm^Two(5Kg
f / cm^Two) It is characterized by using the above materials. This
According to the configuration of the present invention, as in claim 8, the skin at a low temperature
By using a material with relatively high elongation, the airbag
It is possible to prevent scattering of the epidermis during deployment. Also,
Use a material with relatively low elongation at high temperatures as the skin.
Can prevent the deployment time from being delayed
You.

[0016]

Embodiment 1 Next, Embodiment 1 of the present invention
Will be described with reference to FIGS.

In FIG. 1, an instrument panel 10 of a vehicle such as an automobile includes an instrument panel main body 11 extending to both sides of a vehicle cabin of the vehicle, and a cluster lid (central panel) located at a central portion of the instrument panel main body 11. 12 and a sub-panel 13 located on the passenger seat side on the left side of the center of the instrument panel main body 11.

The instrument panel body 11 is
It has a front wall 11a, which is a front edge, and a rear inclined wall 11b integrally and continuously provided behind the front wall 11a. This front wall 11a
Has a front inclined wall 11c, and a horizontal wall 11d provided horizontally behind the front inclined wall 11c. And the horizontal wall 11
A ridge 11e is formed between d and the rear inclined wall 11b. An opening 14 for a defroster extending left and right is formed in the horizontal wall 11d.
The garnish 15 forming a is attached.

Further, a steering member 16 as shown in FIG. 2 is provided in the instrument panel body 10. A bracket 17 is welded and fixed to a portion of the steering member 16 corresponding to the passenger seat,
The front end of an airbag unit 18 is fixed on the bracket 17 with bolts 19. The airbag unit 18 is inclined obliquely rearward and upward, and an airbag inflating port 18a is provided at the rear end of the airbag unit 18.

The instrument panel body 11
2 and 3, an opening 20 through which an airbag (not shown) of the airbag unit 18 can be inflated is formed in the passenger seat side. The opening 20 has a front edge extending along a ridge line 11e which is a rear edge of the front wall 11a, a rear edge extending along a passenger seat side edge portion (rear edge portion) 21, and one side edge having a car edge. The center panel 12 at the center in the width direction extends along one side edge 12a, and the other side edge extends along the side edge 22 of the instrument panel body 11. The central panel 12, which is a cluster lid, has side edges 12a extending in the up-down direction and the front-back direction. And the central panel 12
Louver 12b for center air blowing and AV
A liquid crystal display panel 12c of the system and the like are provided.
Moreover, a panel mounting edge 23 integral with the instrument panel main body 11 as shown in FIGS. 2 and 3 is provided at the edge of the opening 20. This panel mounting edge 23
Are the inner peripheral wall 23a, the outer peripheral wall 23b and the peripheral walls 23a, 2
The cross section is formed in a U-shape from the bottom wall 23c to which 3b is continuously provided. A panel mounting groove 23d is formed between the inner peripheral wall 23a and the outer peripheral wall 23b.
As shown in FIG. 2, a flange 13a on the periphery of the sub-panel 13 is fitted to d. Further, tapered axial protruding portions 23e, 23e projecting toward the airbag unit 18 are provided at the center of the front edge (center of the ridge line 11e side) and the center of the rear edge (center of the passenger seat side edge) of the bottom wall 23c. Are formed.

Further, on the inner surface of the peripheral portion of the sub-panel 13,
As shown in FIGS. 1 and 5, a large number of locking claws 2 engaging with the instrument panel body 11 at the edge of the opening 20.
4 are formed. The sub panel 13 is locked to the instrument panel main body 11 by the plurality of locking claws 24. As shown in FIG. 2, fixing pieces 25 are integrally formed on the inner surface of the front edge (peripheral edge) and the inner surface of the rear edge (peripheral edge) of the sub-panel 13. Engagement holes 25a, 25a are formed in the locking pieces 25, 25,
The engagement holes 25a, 25a have axial protrusions 23e, 23e.
Are fitted. The locking pieces 25, 25 are fixed to the bottom wall 23c by tapping screws 26, 26 screwed to the shaft-like projections 23e, 23e.

The sub-panel 13 is formed by laminating a resin core material 27, a foam layer 28, and a skin 29 formed by injection molding in three layers in this order. On the inner surface of the central portion of the sub-panel 13, a H-shaped cleavage groove 30 is formed from the left and right cleavage grooves 30a and the front and rear cleavage grooves 30b at both ends of the left and right cleavage grooves 30a. Thereby, the cleavage groove 30 is in a seamless state invisible from the outside (the cabin side). Note that the cleavage groove 30 is formed across the core material 27 and the foam layer 28 so that it can be easily cleaved by the inflation pressure of the airbag.

At the center of the sub-panel 13, airbag lids 31, 31 which are deployed when the cleavage groove 30 is torn by the inflation pressure of the airbag are provided with left and right cleavage grooves 30a.
Are formed above and below. In addition, a hole 131 for air conditioning is formed in a side edge portion of the sub panel 13, and the louver 32 is attached to the hole 131 for air conditioning.

Next, the operation of the instrument panel 10 having such a configuration will be described.

According to this configuration, since most of the portion of the instrument panel 10 on the passenger seat side is the sub-panel 13, the overall appearance is not impaired. In addition, the air bag grid part 31 due to the inflation of the air bag,
Since the sub-panel 13 can be replaced after the deployment of the 31, the repair cost can be reduced.

Furthermore, the instrument panel body 1 originally
Since the ridge line 11e formed by the front edge portion 11a and the front edge of the sub-panel 13 match, the front edge of the sub-panel 13 appears to be formed integrally with the instrument panel body 11.

Since the side edge 12a of the center panel 12 and the side edge of the sub panel 13 are adjacent to each other and correspond to each other, a sense of unity between the instrument panel main body 11 and the sub panel 13 at the center of the instrument panel 10 in the vehicle width direction. And the appearance does not deteriorate. Furthermore, since most of the left half of the instrument panel 10 is included in the sub-panel 13, the instrument panel 10
An opening for a small airbag is partially provided in the portion on the passenger seat side, and the sense of unity with the instrument panel main body 11 is improved as compared with the case where this opening is closed by an airbag lid.

[0028]

Modification In the first embodiment described above, an example is shown in which the sub-panel 13 is formed in a three-layer structure from the core material 27, the foam layer 28, and the skin 29, but the present invention is not necessarily limited to this. For example, as shown in FIG. 6, a one-layer structure of the core 27 alone, a two-layer structure of the core 27 and the skin 29 shown in FIG. 7, or the core 27 and the heat shield layer as shown in FIG. 27
a, a foam layer 28 and a skin 29 may be laminated in this order to form a four-layer structure. In the case of FIG. 6, a cleavage groove 30 opening to the inner surface of the core material 27 is provided near the outer surface, in the case of FIG. 7, the cleavage groove 30 is provided up to the skin 29, and in the case of FIG. This shows an example in which a cleavage groove 30 extending over the material 27, the heat shielding layer 27a, and the foam layer 28 is provided up to the skin 29. In the example of FIG. 8, a layer including the heat shield layer 27a, the foam layer 28, and the skin 29 is formed in advance and set in the cavity of the injection mold, and the gap between the heat shield layer 27a and the injection mold is set. When the molten resin is injected into the core material 27 to form the core material 27, the heat shielding layer 27a can prevent the foamed layer 28 from being melted by the heat of the molten resin.

As shown in FIGS. 9 to 12, supporting pieces (supporting protrusions) 40, 40 are protruded from the inner surface of the above-mentioned core material 27, and locking holes 40a are formed in the supporting pieces 40, 40. , 40a
May be provided, and the locking claws 41, 41 protruding from the airbag unit 18 may be inserted into the locking holes 40a, 40a and locked. According to this configuration, the airbag unit 18 can be supported on the instrument panel 10 and stabilized.

Further, as shown in FIGS. 13 to 16, the core member 27 may be composed of a central airbag lid portion 50 and a panel main body portion 51 at the periphery thereof. In this case, the core material 2
The airbag lid portion 50 and the panel body portion 51 are formed by two-color molding from resin materials having different physical properties. The airbag lid 50 has first and second airbag lids 50a and 50b separated by a cleavage groove 30. In addition, as a material of the core material 27, for example, the air back grid part 50 flexural modulus 10,000 Kg / cm ^{2 to} 25,000 Kg / cm ² contraction rate (%) 4/1000 to 8/1000 linear expansion coefficient 4 × 10 ^{-5 / ° C~10 × 10 -5 /} ° C the panel body 51 ° C flexural modulus 700Kg / cm ² ~7,000Kg / cm ² shrinkage (%) 4/1000 to / 1000 linear expansion of 2 ^{× 10 -5 ~12 × 10 -5 /} ° C~12 × 10 -5 / ° may be used those conditions such as C.

According to this configuration, since the airbag grid portion 50 of the sub-panel 13 is formed of a material that is easily bent, and the periphery of the airbag grid portion 50 is formed of a highly rigid material, the instrument panel main body is formed. 1
By using the sub-panel 13 having a sense of unity with the airbag unit 1, the airbag lid 50 can be easily deployed when the airbag unit 18 is operated. Moreover, by using a resin material having substantially the same physical properties as the shrinkage rate and the linear expansion rate for the air bag grid portion 50 and the panel body portion 51, it is possible to provide an instrument panel having excellent heat cycle resistance and less deformation.

In the modification shown in FIGS. 13 to 16, the support pieces 40, 40 shown in FIGS. 9 to 12 are provided on the airbag grid 50, and the locking claws 41, 41 of the airbag unit 18 are provided. Are fixed to the retaining holes 40a, 4 of the support pieces 40, 40.
0a are respectively inserted and locked. still,
In the modifications shown in FIGS. 9 to 16, the same components as those in the embodiment shown in FIGS. 1 to 8 are denoted by the same reference numerals, and description thereof is omitted.

Further, as shown in FIG. 17, a lid 110 of a pop-up navigation (this lid is opened when the indicator housed in the instrument panel is approaching when the navigation is activated) is provided above the central panel 12. ) Can be applied to a vehicle having the above-mentioned configuration, and in this case, the side edge of the lid 110 coincides with the side edge of the sub panel 13. Therefore,
If such a lid 110 is provided, the central panel 11
17 and the side edge of the lid 110 coincides as shown in FIG. 17, and the side edge of the lid 110 extends to the ridge line 11e as shown in FIG. The portions along the side edges of each other are more natural and united, and the appearance is improved.

In addition, as shown in FIGS.
The sub-panel 13 has a core member 70 and a laminated sheet 71
The core member 70 is provided with a central airbag lid portion 72 and a peripheral panel body portion 73 as separate members, and the airbag lid portion 72 and the panel body portion 73 have a fitting structure. And may be combined.

More specifically, as shown in FIG. 18, the panel main body 73 is made of a normal PPC material or the like, and the air bag grid portion 72 is made of a TPO material or a TEO material having good low-temperature characteristics. Forming a fitting portion 74 such as a fitting edge portion on the main body portion 73 and an airbag lid portion 72.
A fitting portion 75 such as a fitting receiving groove portion is formed in FIG.
9. As shown in FIG. 20, the two are joined by forcible fitting. At this time, a guide pin 84 may be formed on the panel body 73 in order to position the air bag lid 72 with the air bag lid 72.

Then, as shown in FIG. 19, the core material 7 formed by fitting the air backgrid 72 to the panel body 73
The adhesive 76 is applied to the surface of the “0”. Adhesive used 76
Suitable are rubber, butyl rubber and styrene.

Finally, as shown in FIGS. 20 and 21, the core member 70 is set in a vacuum receiving mold 78 of a vacuum forming machine 77, and a laminate sheet 71 is attached to the surface of the core member 70 to form a vacuum tank. Vacuum pressure bonding is performed by performing suction using a vacuum source 79 such as a vacuum source. Here, the laminate sheet 71 is a sheet material in which a skin 80 made of a TPO material having good low-temperature characteristics and a foam layer 81 made of a PPF foam or the like are integrated. Then, in order to improve the adhesion between the core material 70 and the laminate sheet 71, the core material 70
May be subjected to a drawing process or a concave and convex groove may be formed on the surface. Alternatively, an uneven groove 82 is formed on the side of the laminate sheet 71.
May be formed. In order to perform vacuum compression bonding, a small hole for evacuation is formed in the core 70. After demolding, the sub-panel 13 is completed by cutting at the position of the dashed line 83 in FIG.

By separately forming the panel body 73 and the airbag lid 72 as shown in FIGS.
As shown in FIG. 16, the core material 70 can be obtained easily and inexpensively without using a two-color molding machine.

Although the vacuum forming machine 77 is used for bonding the core member 70 and the laminate sheet 71, the vacuum forming machine
Since 7 has only the vacuum receiving mold 78, the cost required for the mold can be reduced. As described above, the sub-panel 13 can be easily and inexpensively obtained.

The skin 29, 80 of the cleavage groove 30 has a tensile strength at -40 ° C. (low temperature) of 250 × 9.8 N.
/ Cm ² (250 kgf / cm ² ) to 500 × 9.8 N /
cm ² (500 Kgf / cm ² ) and elongation percentage is 50 (%)
As described above, the tear strength is 10 × 9.8 N / cm ² (10 kg
f / cm ² ) or more and a tensile strength at 23 ° C. (normal temperature) of 50 × 9.8 N / cm ² (50 kgf / cm ² ) to 1
00 × 9.8 N / cm ² (100 kgf / cm ² ), elongation percentage is 100% or more, and tear strength is 10 × 9.8 N.
/ Cm ² (10 kgf / cm ² ) or more and 85 ° C.
(High temperature) 10 × 9.8 N / cm ² (Kg
f / cm ² ) to 100 × 9.8 N / cm ² (100 kgf)
/ Cm ² ), a material having an elongation percentage of 150 to 500 (%) and a tear strength of 5 × 9.8 N / cm ² (5 kgf / cm) or more.

Examples of the skins 29 and 30 having the above-mentioned properties include, for example, TEO (TPO) thermoplastic olefin TPU (PUR) thermoplastic urethane TPVC (PVC) vinyl chloride TPEE (TEEE) thermoplastic ester elastomer SBC (TPS) styrene-based (Polystyrene / polybutadiene or polyisoprene).

The methods for forming the skins 29, 80 include vacuum forming concave / convex powder slush forming (using a freeze-pulverized or micro-bead crushed material) spray forming sol / slash forming calender forming extrusion forming inflation forming and the like. I do.

The outer skins 29 and 80 are a full instrument (used on the entire surface of the instrument panel 10), a partial instrument (one used partially on the instrument panel 10), and a separate instrument (an airbag at the passenger seat). Grid part 3
1, 50, 72).

As described above, by using a material having a relatively high elongation at low temperatures as the skins 29 and 80, the skins 29 and 80 can be prevented from being scattered when the airbag is deployed. In addition, by using a material having a relatively low elongation at high temperatures as the skins 29 and 80, it is possible to prevent the deployment time from being delayed.

[0045]

As described above, according to the first aspect of the present invention, since most of the portion of the instrument panel on the passenger seat side is a sub-panel, the overall appearance is not impaired. Further, after the airbag grid is deployed by the inflation of the airbag, the sub-panel may be replaced, so that the repair cost can be reduced.

According to the second aspect of the present invention, since the ridgeline originally formed at the front edge of the instrument panel main body coincides with the front edge of the sub panel, the front edge of the sub panel is integrated with the instrument panel main body. It looks like it is formed.

According to the third aspect of the present invention, the side edges of the central panel and the side edges of the sub panel are adjacent to each other, for example, a cluster lid, a lid provided with a louver for blowing out center air, and a member provided with a liquid crystal navigation panel. Therefore, a sense of unity between the instrument panel main body and the sub-panel at the center of the instrument panel in the vehicle width direction is obtained, and the appearance does not deteriorate.

According to the fourth aspect of the present invention, since most of the left half of the instrument panel is included in the sub-panel, when the air bag grid is partially provided on the passenger side of the instrument panel. Compared to this, the sense of unity with the instrument panel body is improved.

According to the fifth aspect of the present invention, the airbag unit can be supported and stabilized by the instrument panel.

According to the sixth aspect of the present invention, the airbag grid portion of the sub-panel is formed of a material that can be easily bent, and the periphery of the airbag grid portion is formed of a highly rigid material. By using the sub-panel with a sense of unity, the air bag grid portion can be easily deployed when the air bag unit is operated.

According to the seventh aspect of the present invention, a core material can be obtained easily and inexpensively without using a two-color molding machine. Further, by using a vacuum forming machine for bonding the core material and the laminate sheet, the cost required for the mold can be reduced. As described above, the sub-panel can be easily and inexpensively obtained.

According to the eighth aspect of the present invention, the use of a material having a relatively high elongation at low temperatures as the skin can prevent the skin from scattering when the airbag is deployed. In addition, by using a material having a relatively low elongation at high temperature as the skin, it is possible to prevent the development time from being delayed.

According to the ninth aspect of the present invention, as in the eighth aspect, by using a material having a relatively high elongation at a low temperature as the skin, it is possible to prevent the skin from scattering when the airbag is deployed. In addition, by using a material having a relatively low elongation at high temperature as the skin, it is possible to prevent the development time from being delayed.

[Brief description of the drawings]

FIG. 1 is a perspective view of an instrument panel according to the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is an enlarged perspective view of a main part of a portion where the sub-panel of FIG.

FIG. 4 is a sectional view taken along line BB of FIG. 1;

FIG. 5 is a sectional view taken along line CC of FIG. 1;

FIG. 6 is a sectional view similar to FIG. 3, showing another example of the sub-panel shown in FIGS. 1 to 5;

FIG. 7 is a sectional view similar to FIG. 3, showing another example of the sub panel shown in FIGS. 1 to 5;

FIG. 8 is a sectional view similar to FIG. 3, showing another example of the sub-panel shown in FIGS. 1 to 5;

FIG. 9 is a sectional view similar to FIG. 3, showing another example of the sub-panel shown in FIGS. 1 to 5;

FIG. 10 is a sectional view similar to FIG. 2, showing another example of the sub-panel shown in FIGS. 1 to 5;

FIG. 11 is a sectional view similar to FIG. 2, showing another example of the sub-panel shown in FIGS. 1 to 5;

FIG. 12 is a cross-sectional view similar to FIG. 2, showing another example of the sub-panel shown in FIGS.

FIG. 13 is a sectional view similar to FIG. 2, showing another example of the sub panel shown in FIGS. 1 to 5;

FIG. 14 is a sectional view similar to FIG. 2, showing another example of the sub-panel shown in FIGS. 1 to 5;

FIG. 15 is a sectional view similar to FIG. 2, showing another example of the sub-panel shown in FIGS. 1 to 5;

FIG. 16 is a sectional view similar to FIG. 2, showing another example of the sub panel shown in FIGS. 1 to 5;

FIG. 17 is a perspective view of an instrument panel showing still another embodiment of the present invention.

FIG. 18 is an exploded perspective view of an airbag lid portion and a panel body portion showing another embodiment of the present invention.

FIG. 19 is a perspective view showing a state in which the air bag grid portion of FIG. 18 and a panel main body are fitted together.

FIG. 20 is a partially enlarged cross-sectional view showing a state where a laminate sheet is stuck to the core material of FIG. 19;

FIG. 21 is a view showing a state where the sub-panel of FIG. 19 is vacuum formed.

FIG. 22 is a schematic perspective view showing an example of a conventional instrument panel.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Instrument panel 11 ... Instrument panel main body 11a ... Front edge part 11e ... Ridge line 12 ... Central panel 12a ... Side edge 13 ... Sub panel 18 ... Airbag Unit 20 ... Opening 21 ... Passenger seat side edge 22 ... Side edge 30 ... Cleaving groove 31 ... Air bag grid part 40 ... Support piece (support projection) 50 ... Air bag grid part 51 Panel body part 70 Core material 71 Laminated sheet 72 Air bag grid part 73 Panel body part 131 Air conditioning hole

Claims (9)

[Claims] An opening formed in the instrument panel main body so as to allow an airbag disposed in a passenger seat side of the instrument panel main body to be inflated, wherein the opening is closed by a sub-panel; A vehicular instrument panel, wherein a cleavage groove formed on an inner surface and cleaved by the inflation pressure of the airbag and an airbag lid portion extending from a portion of the cleavage groove are formed in the sub-panel, wherein the opening and the sub-panel are An instrument panel for a vehicle, wherein a peripheral edge extends to a front edge portion, a passenger seat side edge portion, a side edge portion, and a center portion in a vehicle width direction of the instrument panel main body. 2. A ridge line extending to both left and right ends is formed at a front edge portion of the instrument panel main body.
The vehicle instrument panel according to claim 1, wherein a front edge of the sub-panel is formed along the ridge line. 3. A central panel having side edges extending in the front-rear or vertical direction is attached to a central portion of the instrument panel main body, and one side edge of the sub-panel extends along a side edge of the central panel. The vehicle instrument panel according to claim 1, wherein the vehicle instrument panel extends. 4. The air bag grid portion according to claim 1, wherein the air bag grid portion is formed in a central portion of the sub panel, and a hole for air conditioning is formed in a side edge portion of the sub panel. The vehicle instrument panel as described. 5. The vehicle instrument according to claim 1, wherein a support projection for supporting an airbag unit disposed in the instrument panel main body is formed on an inner surface of the sub-panel. Ment panel. 6. The vehicle according to claim 1, wherein the sub-panel is formed of two different colors from a central air bag grid portion and a peripheral panel body portion. instrument panel. 7. The sub-panel has a structure in which a laminate sheet is bonded to a core material, and the core material has a central airbag lid portion and a peripheral panel body portion as separate members. The vehicle instrument panel according to any one of claims 1 to 5, wherein the main body is coupled to the main body by a fitting structure. 8. Tensile strength at −40 ° C. is 250 × 9.8 N / cm ² (250 kgf / c)
m ² ) to 500 × 9.8 N / cm ² (500 kgf / cm
² ) The elongation is 50% or more and the tear strength is 10 ×
9.8 N / cm ² (10 kgf / cm ² ) or more and 85 ° C.
10 × 9.8 N / cm ² (10 kgf /
cm ² ) to 100 × 9.8 N / cm ² (100 kgf / c
In m ^2), claim elongation at 150-500%, tear strength is characterized by using a ^{5 × 9.8N / cm 2 (5Kgf} / cm 2) or more materials 1-7 An instrument panel for a vehicle according to any one of the preceding claims. 9. Tensile strength at −40 ° C. of 250 × 9.8 N / cm ² (250 kgf / c)
m ² ) to 500 × 9.8 N / cm ² (500 kgf / cm
² ) The elongation is 50% or more and the tear strength is 10 ×
9.8 N / cm ² (10 kgf / cm ² ) or more and 23 ° C.
Tensile strength at 50 × 9.8 N / cm ² (50 kgf /
cm ² ) to 100 × 9.8 N / cm ² (100 kgf / c
m ² ), elongation percentage is 100% or more, and tear strength is 1
If the value is 0 × 9.8 N / cm ² (10 kgf / cm ² ) or more,
Tensile strength at 5 ° C. is 10 × 9.8 N / cm ² (10 kg
f / cm ² ) to 100 × 9.8 N / cm ² (100 kgf)
/ Cm ² ), a material having an elongation percentage of 150 to 500 (%) and a tear strength of 5 × 9.8 N / cm ² (5 kgf / cm ² ) or more. The vehicle instrument panel according to any one of claims 7 to 10.