JP2005119594A - Vehicular molded ceiling plate structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicular molded ceiling plate structure in which a portion of a curved side part at the predetermined position reliably forms a hinge part and is developed in a rocking manner when an airbag is developed, and no defective plate caused by wrinkles or the like is generated when a molded ceiling plate is mounted on a vehicle. <P>SOLUTION: A curved side part 4 which is mounted on a lower side face of a roof panel 10 of a vehicle and curved along the shape of the roof panel 10 is rocked to a cabin 9 side when an airbag 14 installed on the roof panel 10 is developed, and forms a developed opening part 15 of the airbag 14 relative to the roof panel 10. A separate reinforcing rib 20 is mounted on the curved side part 4 in a molded ceiling plate 1 to form a hinge part 21 so that a tip side of the curved side part 4 is rocked to a vehicle 12 side. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention is attached to the lower surface of a roof panel of a vehicle, and a curved side portion that is curved so as to follow the shape of the roof panel swings toward the passenger compartment when the airbag installed on the roof panel is deployed. The present invention relates to a molded ceiling board structure for a vehicle configured to form a deployment opening of an airbag between a roof panel and a roof panel.

As this type of conventional molded ceiling board structure, those shown in FIGS. 8 and 9 are known (see Patent Document 1 and Patent Document 2).
JP 2000-198407 A JP 2002-240644 A.

  According to FIG.8 and FIG.9, the shaping | molding ceiling board a which comprises the shaping | molding ceiling board structure for vehicles is attached so that the lower surface of the roof panel c of the vehicle b may be covered, The side part is a roof panel. It is formed in the curved side part d that is curved and formed so as to follow the shape of c.

  The curved side portion d swings toward the passenger compartment k when the airbag j of the airbag apparatus i installed on the roof side rail h of the roof panel c is deployed, and is between the roof panel c and the roof side c. The deployment opening portion m is formed, and the airbag i that is deployed is used to capture and protect the occupant's head and the like.

  Further, an assist grip o is sub-assembled via a roof side bracket n on both sides of the vehicle b near the curved side portion d in the general portion e of the ceiling board a, and the assist grip o is attached to the roof side bracket n. The worn clip q is attached to the roof panel c by hooking it on the clip hole f provided in the loop panel c.

  In the conventional technique configured as described above, the swinging portion g swings around a hinge portion g assumed at a predetermined position of the curved side portion d (see a two-dot chain line in FIG. 9) to form a development opening m. The airbag j may be inflated and deployed. However, since the airbag j is inflated and deployed at a high pressure and at an ultra-high speed, the curved side portion d does not use the hinge portion g as a fulcrum, and the roof side bracket n There is a case where rocking occurs at a point such as p point in the vicinity of.

  In such a case, the clip q may come out of the clip hole f due to the inflation pressure of the airbag j, and the assist grip o may return the molded ceiling plate a to the general part e and expand toward the vehicle compartment k. It was.

  In order to mount the molded ceiling board a on the roof panel c, first, an operator carries the molded ceiling board a into the vehicle compartment k, and the front end side of the molded ceiling board a is once placed on an instrument panel (not shown). For example, to place the molded ceiling board a on the instrument panel and attach it to the roof panel c, the operator must The rear end side of the molded ceiling board a will be provided.

  As a result, the center part of the vehicle b in the longitudinal direction of the vehicle b in the molded ceiling board a between the assist grips o spaced apart in the longitudinal direction of the molded ceiling board a is bent, and the side end of the general part e is In addition, wrinkles s may occur in the curved side part d, and the entire molded ceiling board a becomes a defective product.

  In view of this point, the present invention enables a predetermined position on the curved side portion of the molded ceiling panel to be a hinge portion when the airbag is inflated to be able to swing and deploy, and at the time of mounting the molded ceiling panel to the vehicle. An object of the present invention is to provide a molded ceiling board structure for a vehicle that prevents generation of defective products due to wrinkles or the like.

  In order to achieve the above object, the present invention according to claim 1 is attached to a lower surface of a roof panel of a vehicle, and a curved side portion that is curved to conform to the shape of the roof panel is installed on the roof panel. The molded ceiling plate is configured to swing toward the passenger compartment when the airbag is deployed to form an airbag deployment opening between the roof panel and the curved side portion of the molded ceiling plate. A separate reinforcing bone is attached, and a hinge portion is formed so that the distal end side of the curved side portion can swing toward the passenger compartment.

  With this configuration, the present invention provides a molded ceiling board when the airbag is inflated by attaching a separate reinforcing bone to the curved side edge of the molded ceiling board and forming a hinge part on the distal end side of the curved side piece. The predetermined position on the curved side of the door can be reliably hinged and deployed, and the clip that attaches the assist grip to the roof panel comes out of the clip hole due to the inflation pressure of the airbag, and the assist grip It can be prevented from coming off the molded ceiling board and jumping out to the passenger compartment side.

  In addition, when the molded ceiling board is mounted on the roof panel, even if the operator temporarily places one end side of the molded ceiling board on the instrument panel and the other end side, the molded ceiling board is present due to the presence of the reinforcing bone. It is possible to prevent wrinkles and the like from becoming defective due to bending of the molded ceiling plate.

  Further, the invention according to claim 2 is provided on the molded ceiling board so that the reinforcing bone in the invention according to claim 1 extends in the front-rear direction of the vehicle in a range opposite to the airbag installation range on the roof panel. Since it is mounted, wrinkles due to bending can be more reliably prevented by the reinforcing bone in the mounting operation of the molded ceiling panel to the roof panel.

  The invention according to claim 3 is attached to the lower side surface of the roof panel of the vehicle, and the vehicle has a curved side portion that is curved so as to follow the shape of the roof panel. It has a molded ceiling board that is configured to swing to the room side and form an airbag opening opening with the roof panel. Reinforcement by increasing the density on the curved side of the molded ceiling board A bone portion is formed, and a hinge portion is formed so that the distal end side of the curved side portion can swing toward the vehicle compartment side.

  With this configuration, the present invention attaches the densified reinforcing bone portion in the vicinity of the boundary portion between the curved side portion and the general portion of the molded ceiling board, and forms a hinge portion on the curved side piece portion side. Therefore, when the airbag is inflated, the clip that attaches the assist grip to the roof panel can be reliably deployed by swinging and deploying at a predetermined position on the curved side of the ceiling plate as a hinge part. Can be prevented from slipping out of the clip hole and the assist grip coming off the molded ceiling board and jumping out to the vehicle compartment side.

  Also, when the molded ceiling board is attached to the roof panel, even if the operator temporarily places one end side of the molded ceiling board on the instrument panel and the other end side, the molded ceiling board is present due to the presence of the reinforcing bone. It can prevent that the rigidity of a board becomes high and a molded ceiling board bends, thereby causing wrinkles and the like to become defective products.

  The present invention configured as described above is provided with a reinforcing bone portion formed by mounting a separate reinforcing bone or densifying on the curved side portion of the molded ceiling board, and hinged on the curved side piece portion side. By forming the part, the position on the curved side of the molded ceiling plate can be reliably hinged and deployed when the airbag is inflated, and the assist grip is attached to the roof panel by the inflation pressure of the airbag Can be prevented from slipping out of the clip hole and the assist grip coming off the molded ceiling plate and jumping out to the passenger compartment side, and when the molded ceiling plate is attached to the roof panel, the operator can Even if one end is placed on the instrument panel etc. and the other end is held, the molded ceiling board will bend due to the presence of the reinforcing bone or the reinforcing bone, causing wrinkles etc., resulting in a defective product Can be prevented.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIGS. 1 to 3 show a first embodiment of the present invention. FIG. 1 is a plan view of a molded ceiling material structure for a vehicle according to the embodiment drawn from the passenger compartment side, and FIG. 2 is a roof panel. FIG. 3 is a cross-sectional view taken along the line AA in FIG. 1 in a state where the air bag is attached to the roof, and FIG. 3 is a cross-sectional view taken along the line AA in FIG.

  According to FIGS. 1 and 2, a molded ceiling board 1 constituting a molded ceiling board structure for a vehicle has a core 2 made of urethane, PPO, RPS (a mixture of polypropylene and glass fiber), a nonwoven fabric, cloth, and the like. A curved body formed by laminating a skin material 3 made of the above, and attached so as to cover the lower surface of the roof panel 10 of the vehicle, and its side portion is curved so as to follow the shape of the roof panel 10. It is the side part 4.

  An assist grip 6 is sub-assembled using a roof side bracket 7 near the general portion 5 of the molded ceiling board 1 at the curved side portion 4.

  A clip portion 8 is formed on the roof side bracket 6, and the assist grip 6 is attached and fixed to the roof panel 10 by engaging with a clip hole 11 provided in the roof panel 10.

  Further, a reinforcing bone 20 made of an iron bar, a resin bar, an aluminum bar, a plate of these materials, or the like is attached to the tip side of the assist grip 6 on the curved side 4 to be reinforced. A hinge portion 21 is formed in the vicinity of the distal end side of the curved side portion 4 from the installation position of the bone 20 so that the distal end side of the curved side portion 4 can swing toward the vehicle compartment 12 side. Therefore, for example, when the airbag 14 is deployed, the distal end side of the curved side portion 4 is bent near or at the distal end side of the reinforcing bone 20 and can swing toward the vehicle compartment 12 side.

  The reinforcing bone 20 is attached to the curved side portion 4 using an adhesive 22 such as hot melt and an adhesive tape 23, and the airbag of the airbag device 13 installed on the side roof rail 10 a of the roof panel 10. It is attached to the curved side part 4 so as to be positioned at a substantially central part of the installation range of the airbag 14 so as to face the 14.

  Therefore, the reinforcing bone 20 is located between the pair of assist grips 6 that are disposed apart from each other in the front-rear direction of the vehicle 9 on the one curved side portion 4 side, and the other curved side portion 4. On the side, it is located on the front side of the vehicle 9 of the assist grip 6 mounted so as to be located on the rear side of the vehicle 9 (that is, the rear seat side not shown).

  Note that the airbag 14 of the airbag device 13 is installed so as to be inflated and deployed on the side frame 10a in the vehicle front-rear direction between the front seat and the rear seat, which are usually installed in a passenger compartment, for example, in a passenger car. ing.

  In such a configuration, as shown in FIG. 2, when the airbag 9 is inflated and deployed due to a side collision or the like from the normal state where the airbag device 13 is covered by the curved side portion 4, As shown in FIG. 3, when the airbag 14 first escapes from the gap between the curved side portion 4 and the roof side rail 11a and further expands and deploys, the hinge portion 21 positioned on the distal end side from the reinforcing bone 20 As a swing fulcrum, the distal end side of the curved side portion 4 swings toward the vehicle compartment 12 due to the inflation pressure of the airbag 14, and the deployment opening 15 opens to open the airbag 14 to a door (not shown). It inflates and deploys along the glass, and captures the head of the occupant.

  In this process, a separate reinforcing bone 20 is attached to the curved side portion 4 of the molded ceiling board 1, and the hinge portion 21 is formed on the distal end side of the curved side piece portion 4. Sometimes the clip at which the predetermined position on the curved side portion 4 of the molded ceiling board 1 can reliably swing and deploy as a hinge portion 21 and the assist grip 6 is attached to the roof panel 10 by the inflation pressure of the airbag 14 It is possible to prevent the part 8 from coming out of the clip hole 11 and the assist grip 6 from coming off the molded ceiling board 1 and jumping out to the vehicle compartment 12 side. Moreover, when the molded ceiling board 1 is mounted on the roof panel 10, However, even if one end side of the molded ceiling board 1 is once placed on a not-shown instrument panel or the like and the other end side is held, the molded ceiling board 1 is bent due to the presence of the reinforcing bone 20 to generate wrinkles or the like. Let me become a defective product It can be prevented.

  Next, a second embodiment according to the present invention will be described with reference to FIG.

  FIG. 4 is a cross-sectional view similar to FIG. 2 in a molded ceiling structure for a vehicle that employs a second embodiment according to the present invention.

  The second embodiment shown in FIG. 4 differs from the first embodiment in that the support member 24 is provided so as to support the reinforcing bone 20 from the outside of the vehicle 9. Since other configurations are the same, the same reference numerals are given and detailed explanations are omitted.

  The support member 24 is attached to the side roof rail 10a, and when the curved side portion 4 swings, the support member 24 is fixedly supported so that the curved side portion 4 swings reliably from the hinge portion 21. It is something that assists.

  And in order to mount the shaping | molding ceiling board 1 to the roof panel 10 by 2nd Embodiment, as shown in FIG. 5, the shaping | molding ceiling board 1 put into the compartment 12 is shown from the lower side of the compartment 12 as shown in FIG. This is done by lifting the roof panel 10 and engaging the clip portion 8 with the clip hole 11 while sliding the reinforcing bone 20 along the inner side of the support member 24 and slidingly contacting it.

  Next, a third embodiment according to the present invention will be described with reference to FIG.

  FIG. 6 is a plan view drawn from the passenger compartment side in a molded ceiling structure for a vehicle adopting the third embodiment of the present invention.

  According to the third embodiment shown in FIG. 6, the reinforcing bone 20 is opposed to substantially the entire installation range of the airbag device 13 that extends in the front-rear direction of the vehicle 9 and is installed on the side roof rail 10a. Thus, since the thing of a long dimension is used, it differs from the said 1st Embodiment, Since other structures are the same, the same code | symbol is attached | subjected and detailed description is omitted. .

  With such a configuration, the reinforcing bone 20 is opposed to the entire installation area of the airbag device, so that when the airbag 14 is inflated, the curved side portion 4 of the molded ceiling board 1 is disposed over the entire predetermined position. As a result, the hinge portion 21 can be reliably oscillated and deployed.

  Next, a fourth embodiment according to the present invention will be described with reference to FIG.

  According to the fourth embodiment, instead of the separate reinforcing bone 20 in the above-described embodiment, the core of the molded ceiling board 1 is located on the distal end side from the site where the assist grip 6 is installed on the curved side portion 4. A feature is that a part of the material 2 is densified and the rigid reinforcing bone portion 30 is integrally formed so as to extend in the front-rear direction of the vehicle 9, and in other configurations, the first embodiment. For this reason, the same reference numerals are given and detailed description is omitted.

  Similarly to the reinforcing bone 20 in the above-described embodiment, the reinforcing bone portion 30 in the fourth embodiment also swings when the airbag 14 is inflated and deployed. As a fulcrum, the distal end side of the curved side portion 4 swings toward the vehicle compartment 12 due to the inflation pressure of the airbag 14, the deployment opening 15 opens, and the airbag 14 becomes a door glass (not shown). It inflates and deploys along the way to capture the occupant's head.

  Therefore, in the process of inflating and deploying the airbag 14, the integral reinforcing bone portion 30 is formed on the curved side portion 4 of the molded ceiling board 1, and the hinge portion 21 is formed on the distal end side of the curved side piece portion 4. As a result, when the airbag 14 is inflated, the predetermined position on the curved side portion 4 of the molded ceiling board 1 can reliably swing and deploy as the hinge portion 21, and the assist grip 6 is attached to the roof panel by the inflation pressure of the airbag 14. 10 can be prevented from slipping out of the clip hole 11 and the assist grip 6 coming off the molded ceiling board 1 and jumping out to the vehicle compartment 12 side. Moreover, the roof panel 10 of the molded ceiling board 1 can be prevented. Even when the operator places one end side of the molded ceiling board 1 on a not-illustrated instrument panel or the like and holds the other end side, the molded ceiling board 1 is present due to the presence of the reinforcing bone portion 30. But To generate wrinkles and music can be prevented from becoming defective products.

  As described above, the molded ceiling material structure for a vehicle according to the present invention is provided with a reinforcing bone part formed by attaching a separate reinforcing bone or densifying the curved side part of the molded ceiling board, By forming the hinge part on the curved side piece part, it is possible to oscillate and deploy the predetermined position on the curved side part of the molded ceiling panel as a hinge part when the airbag is inflated. The clip that attaches the grip to the roof panel can be prevented from coming out of the clip hole, and the assist grip can be prevented from coming off the molded ceiling panel and jumping out to the passenger compartment side, and when the molded ceiling panel is attached to the roof panel Even if the operator once puts one end side of the molded ceiling board on the instrument panel, etc. and has the other end side, the molded ceiling board is bent due to the presence of the reinforcing bone or the reinforcing bone part, and wrinkles etc. To produce defective products It is attached to the lower surface of the roof panel of the vehicle, and the side of the compartment is curved when the airbag is installed on the roof panel. It is suitable for a molded ceiling board structure for a vehicle and the like that is configured so as to form a deployment opening of an airbag between the roof panel and the roof panel.

FIG. 1 is a plan view of a molded ceiling material structure for a vehicle according to a first embodiment of the present invention drawn from the passenger compartment side. FIG. 2 is a cross-sectional view taken along the line AA in FIG. 1 in a state where the roof panel is mounted. FIG. 2 is a cross-sectional view taken along line AA of FIG. 1 in a state where the air bag is inflated and deployed on a roof panel. It is sectional drawing similar to FIG. 2 in the molded ceiling structure for vehicles which employ | adopted 2nd Embodiment concerning this invention. It is explanatory drawing which shows the process of mounting | wearing the roof panel with the shaping | molding ceiling board in 2nd Embodiment concerning this invention. It is the top view which drawn the molded ceiling material structure for vehicles which employ | adopted 3rd Embodiment concerning this invention from the compartment side. It is sectional drawing similar to FIG. 2 of the molded ceiling board structure for vehicles which employ | adopted 4th Embodiment concerning this invention. It is the top view which drawn the conventional molded ceiling board structure for vehicles from the compartment side. FIG. 10 is a BB diagram in FIG. 9.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Molding ceiling board 4 Curved side part 6 Assist grip 9 Vehicle 10 Roof panel 12 Car compartment 13 Airbag apparatus 14 Airbag 20 Reinforcement bone 21 Hinge part 30 Reinforcement bone part

Claims (3)

A curved side portion attached to a lower surface of a roof panel of a vehicle and curved so as to follow the shape of the roof panel swings toward the vehicle compartment when the airbag installed on the roof panel is deployed. Having a molded ceiling plate configured to form a deployment opening of the airbag between the panel and
A vehicle is characterized in that a separate reinforcing bone is attached to the curved side portion of the molded ceiling board, and a hinge portion is formed so that the distal end side of the curved side portion can swing toward the vehicle compartment side. Molded ceiling board structure. The molded ceiling board structure for a vehicle, wherein the reinforcing bone is attached to the molded ceiling board so as to extend in a front-rear direction of the vehicle in a range facing the airbag installation range on the roof panel. . A curved side portion attached to a lower surface of a roof panel of a vehicle and curved so as to follow the shape of the roof panel swings toward the vehicle compartment side when the airbag installed on the roof panel is deployed, and the roof Having a molded ceiling plate configured to form a deployment opening of the airbag between the panel and
A reinforcing bone portion is formed by increasing the density on the curved side portion of the molded ceiling plate, and a hinge portion is formed so that the distal end side of the curved side portion can swing to the vehicle compartment side. A molded ceiling board structure for vehicles.

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