JP4795997B2 - Arrangement structure of side duct to ceiling material for vehicle - Google Patents

Description

  The present invention relates to a structure in which side ducts for blowing air are provided on the left and right sides of a vehicle ceiling material.

The ceiling of a passenger car or the like is formed by arranging a vehicle ceiling material made of synthetic resin or the like on the indoor side of a body panel made of a thin steel plate. In particular, large passenger cars and the like have air conditioner outlets in the rear seats, and the ceiling material for the vehicle is configured with a duct for supplying temperature-controlled air on the upper surface on the back side. .
For example, in the vehicle ceiling material disclosed in Patent Document 1, the duct includes a rear duct portion extending left and right on the rear side of the ceiling material body, and a pair of left and right sides extending from the left and right ends of the rear duct portion toward the front side of the ceiling material body. The shock absorbing portion is integrally extended on the front side of the side duct portion.

  By the way, in order to protect passengers at the time of a passenger car collision, a curtain shield airbag (hereinafter simply referred to as an airbag) is provided on the left and right sides of the ceiling (left and right on the back side of the vehicle ceiling material) at positions outside the vehicle with respect to the side duct portion. Is often provided. When the airbag is activated at the time of a vehicle collision, the airbag is deployed to face the indoor side of the side window with the left and right ends of the vehicular ceiling member protruding to the indoor side.

  However, in the above-described conventional vehicle ceiling material, the duct (rear duct portion and side duct portion) has a ceiling material body formed by an adhesive such as hot melt provided between the back surface thereof and the back side upper surface of the ceiling material body. It is fixed to. Therefore, when the airbag operates, the side duct portion may be pulled downward by the end portion of the vehicle ceiling material. In some cases, the side duct portion may be damaged, and fragments due to the damage may be scattered into the vehicle compartment.

JP 2006-206030 A

  The present invention has been made in view of the above-described conventional problems, and can prevent the side duct from being damaged, and can prevent the fragments caused by the damage from scattering into the vehicle. It is an object of the present invention to provide a side duct arrangement structure on a ceiling material.

The present invention is a structure in which side ducts for blowing air into the vehicle are arranged on the left and right sides of the rear side upper surface of the ceiling material for a vehicle.
The side duct has a cylindrical duct main body formed by forming an air passage for allowing the air to pass therethrough, and a fixing portion formed to project from the side of the duct main body on the vehicle center side. And only the fixed part is fixed to the back side upper surface of the vehicle ceiling material by an adhesive,
When the curtain shield airbag disposed outside the vehicle with respect to the side duct is activated, the curtain shield airbag pushes down the left and right end portions of the vehicle ceiling member without pulling the duct main body. It is in the arrangement structure of the side duct to the ceiling material for vehicles characterized by having been constituted in this way (claim 1).

In the present invention, the curtain duct airbag (hereinafter simply referred to as the airbag) is devised to prevent the side duct disposed on the vehicle ceiling material from being damaged.
Specifically, the side duct of the present invention is formed by protruding a fixing portion on the side of the duct main body on the vehicle center side, and only this fixing portion is fixed to the upper surface on the back side of the vehicle ceiling material with an adhesive. is doing. And the duct main-body part and the back side upper surface of the ceiling material for vehicles are not being fixed by the adhesive agent.

As a result, when the airbag disposed outside the vehicle with respect to the side duct is activated in the event of a vehicle collision and is deployed facing the vehicle interior of the side window, the end of the vehicle ceiling material in the left-right direction is When pushed by the airbag, it can hang down into the vehicle without pulling the duct body of the side duct.
Therefore, according to the present invention, it is possible to prevent the side duct from being damaged, and it is possible to prevent debris due to the damage from scattering into the vehicle.

A preferred embodiment of the present invention described above will be described.
In the present invention, the fixing portion can be formed in a distributed manner at a plurality of locations in the longitudinal direction on the side of the duct main body (claim 2).
In this case, it is possible to reduce the material used for forming the side duct by appropriately forming the fixing portion, and to suppress an increase in the mass of the side duct.

The side duct is located on the side of the rear seat in the vehicle, and has an outlet for blowing out air blown from a temperature control unit disposed in the rear of the vehicle to the rear seat. (Claim 3).
In this case, it is possible to prevent the side duct from being damaged in the vehicle in which the temperature control unit is disposed at the rear of the vehicle.

Moreover, the said side duct can be shape | molded from foamed resin (Claim 4).
In this case, it is possible to reduce the weight of the side duct and to prevent the side duct made of the foamed resin from being damaged.

Hereinafter, an embodiment according to an arrangement structure of a side duct on a vehicle ceiling material according to the present invention will be described with reference to the drawings.
As shown in FIG. 1, the arrangement structure of the side duct 2 to the vehicle ceiling material 1 of this example is a side duct for blowing air into the vehicle on the left and right sides of the back side upper surface 101 of the vehicle ceiling material 1. 2 is provided.
As shown in FIGS. 2 and 3, the side duct 2 projects into a cylindrical duct main body portion 21 formed with an air passage 211 through which air passes and a side portion 212 on the vehicle central side in the duct main body portion 21. And a fixed portion 22 formed. In this side duct 2, only the fixing portion 22 is fixed to the back side upper surface 101 of the vehicle ceiling material 1 with an adhesive 3 such as hot melt.

The arrangement structure of the side duct 2 in this example is such that when the curtain shield airbag 4 (hereinafter simply referred to as the airbag 4) disposed outside the vehicle with respect to the side duct 2 is deployed. By the bag 4, the end portion 13 in the left-right direction W of the vehicle ceiling material 1 is configured to be pushed down without pulling the duct main body portion 21.
1 is a perspective view showing the entire vehicle ceiling material 1. FIG. 2 is a perspective view of the vehicle ceiling material 1 and the side duct at the position where the fixing portion 22 is formed and the assist grip 52 is disposed. FIG. 3 is a cross-sectional view showing the periphery of the vehicle ceiling material 1 and the side duct 2 at the formation position of the fixing portion 22 and the formation position of the air outlet 23 of the side duct 2. FIG.

Hereinafter, the arrangement structure of the side duct 2 to the vehicle ceiling material 1 of this example will be described in detail with reference to FIGS.
As shown in FIGS. 2 and 3, the vehicle ceiling material 1 of the present example is used for a passenger car having a three-row seat such as a minivan, and the side duct 2 is a rear seat, that is, a second-row seat and 3 It arrange | positions in the roof side 50 in the side of a row | line | column sheet | seat.
The vehicle ceiling material 1 is disposed on the lower side (indoor side) of the roof panel 5 configured by using an outer panel and an inner panel in the vehicle, and is covered on the indoor side surface of the base material 11 made of resin or the like. The material 12 is laminated.

As shown in FIGS. 1 and 3, the side duct 2 is an outlet for blowing out air (particularly air for cooling) blown from a temperature control unit (not shown) disposed at the rear of the vehicle into the vehicle interior. 23. The air outlets 23 are formed at two locations before and after the side duct 2 in correspondence with the second row seat and the third row seat.
Further, a rear duct 25 that connects the rear end portions of the left and right side ducts 2 is disposed at the rear portion of the rear side upper surface 101 of the vehicle ceiling material 1. Moreover, the one end part (right side edge part in this example) of the left-right direction W of the back duct 25 is connected to the temperature control unit via the connection duct (not shown).

In this example, the connection ducts are formed separately for the right side and the left side, and the air blown from the temperature control unit is blown separately into the right side duct 2 and the left side duct 2. The The air blown from the temperature control unit is blown to the right side duct 2 via a passage portion formed at one end of the right connection duct and the rear duct 25, and the left connection duct and the rear. The air is blown to the left side duct 2 through a passage portion formed in the entire duct 25.
Further, the side duct 2 and the rear duct 25 are formed by blow molding of foamed resin in order to reduce the weight.

As shown in FIGS. 2 and 3, the end portion 13 in the left-right direction W of the vehicle ceiling material 1 is inserted into the receiving portion 511 of the rail member 51 disposed on the inner panel.
In the roof side 50, the airbag 4 is disposed on the back side upper surface 101 of the end 13 in the left-right direction W of the vehicle ceiling material 1, and the airbag 4 is deployed above the airbag 4. For this purpose, an inflator 41 for generating gas to be injected into the airbag 4 is provided.

  As shown in FIG. 1, the fixing portions 22 of the side duct 2 of this example are formed in a distributed manner at a plurality of locations (four locations in this example) in the longitudinal direction (front-rear direction of the vehicle) on the side of the duct body portion 21. It is. In FIG. 1, the front side of the vehicle ceiling material is indicated by F, the attachment portion of the assist grip 52 is indicated by 15, and the corresponding portions of the A pillar, B pillar, C pillar, and D pillar are respectively indicated from the front side of the vehicle. Indicated by 16A, B, C, D.

  Further, as shown in FIG. 2, a ceiling illumination member 53 is disposed on the lower surface 102 on the left and right sides of the vehicle ceiling material 1, and in the outer side of the ceiling illumination member 53 in the left-right direction W, Assist grips 52 are provided corresponding to the respective seats in the first to third rows. The fixing portion 22 of the present example is fixed to the back side portion of the ceiling illumination member 53 (the portion facing the back side upper surface 101 of the vehicle ceiling material 1) via the adhesive 3. And the fixing | fixed part 22 of this example is being fixed to the back side upper surface 101 of the ceiling material 1 for vehicles via the ceiling illumination member 53. FIG.

In this example, the device which prevents that the side duct 2 arrange | positioned in the ceiling material 1 for vehicles at the time of the action | operation of the airbag 4 will be damaged is performed.
Specifically, the side duct 2 of the present example has a fixing portion 22 protruding from a side portion 212 on the vehicle center side in the duct main body portion 21, and only the fixing portion 22 is bonded to the vehicle ceiling by the adhesive 3. The back side upper surface 101 of the material 1 is fixed. The duct body 21 and the back side upper surface 101 of the vehicle ceiling material 1 are not fixed by the adhesive 3. As shown in FIG. 2, in the general part where the air outlet 23 is not formed, a gap S is formed between the duct main body 21 and the back side upper surface 101 of the vehicle ceiling material 1. As shown, the duct main body portion 21 is in contact with the back side upper surface 101 of the vehicle ceiling material 1 via the pedestal portion 213 in the portion corresponding to the location where the air outlet 23 is formed.

As a result, when the airbag 4 disposed outside the vehicle with respect to the side duct 2 is actuated at the time of a vehicle collision and is deployed facing the vehicle interior of the side window, the lateral direction W of the vehicle ceiling material 1 is determined. The end portion 13 can be pushed by the airbag 4 and hang down into the vehicle without pulling the duct main body portion 21 of the side duct 2. Further, the end portion 13 in the left-right direction W of the ceiling material 1 for a vehicle can hang down into the vehicle starting from the fixed portion 22. 2 and 3, the airbag at the time of deployment is indicated by 4A, and the end portion in the left-right direction W of the vehicle ceiling material 1 hanging down into the vehicle is indicated by 13A.
Therefore, according to this example, it is possible to prevent the side duct 2 from being damaged, and it is possible to prevent debris due to this damage from being scattered into the vehicle.

The perspective view which shows the arrangement | positioning structure of the side duct to the ceiling material for vehicles in an Example. Sectional drawing which shows the periphery of the ceiling material for vehicles and the side duct in the formation position of an assist grip in the Example, and the arrangement | positioning position of an assist grip. Sectional drawing which shows the periphery of the ceiling material for vehicles and the side duct in the formation position of the fixing | fixed part in an Example, and the formation position of the blower outlet of a side duct.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vehicle ceiling material 101 Back side upper surface 13 End part 2 Side duct 21 Duct body part 211 Air passage 212 Side part 22 Fixing part 23 Air outlet 3 Adhesive 4 Curtain shield airbag 5 Roof panel 50 Roof side W Left-right direction

Claims (4)

In the structure formed by arranging side ducts for blowing air into the vehicle on the left and right of the back side upper surface of the ceiling material for vehicles,
The side duct has a cylindrical duct main body formed by forming an air passage for allowing the air to pass therethrough, and a fixing portion formed to project from the side of the duct main body on the vehicle center side. And only the fixed part is fixed to the back side upper surface of the vehicle ceiling material by an adhesive,
When the curtain shield airbag disposed outside the vehicle with respect to the side duct is deployed, the curtain shield airbag causes the lateral end of the ceiling material for the vehicle to be pushed down without pulling the duct main body. An arrangement structure of a side duct to a vehicular ceiling material, characterized by being configured as described above.   2. The arrangement structure of side ducts on a vehicle ceiling material according to claim 1, wherein the fixing parts are dispersedly formed at a plurality of locations in the longitudinal direction on the side of the duct main body.   In Claim 1 or 2, the said side duct is located in the side of the back seat in vehicles, and blows off the air sent from the temperature control unit arranged in the back of vehicles to the above-mentioned back seat. An arrangement structure of a side duct to a vehicular ceiling material characterized by having an air outlet.   The arrangement structure of the side duct to the ceiling material for vehicles according to any one of claims 1 to 3, wherein the side duct is formed from foamed resin.

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