JP4968646B2 - Automotive pillar trim - Google Patents

Description

  The present invention relates to a pillar trim of an automobile equipped with an air bag as a safety measure at the time of a side collision.

  In Patent Document 1, in order to protect an occupant's head when a car collides, an air bag is located on the inner side of a roof side from a front pillar portion (hereinafter referred to as an A pillar portion) to a center pillar portion (hereinafter referred to as a pillar portion). An airbag device is disclosed that extends in the vehicle front-rear direction to the vicinity of the rear pillar portion (hereinafter referred to as the C pillar portion) beyond the B pillar portion, and is covered and stored from the inside of the vehicle by the top sealing. . In this Patent Document 1, a jump base is provided on the upper part of the pillar trim body that covers the inner surface of each pillar part, and the airbag is folded and arranged on the upper side of the jump base, while The lower edge of the top ceiling is connected. When the airbag is inflated, the airbag pushes the lower portion of the top ceiling to the inside of the vehicle, is guided by the guide surface of the jumping base, and is inflated to the inside of the vehicle.

In addition, a boss part projects toward the pillar part of the vehicle body below the jump base of the pillar trim body, and a clip attached to the boss part engages with a clip hole provided in the pillar part. The pillar trim body is attached to the pillar portion.
Japanese Patent No. 3866733

  However, in the boss portion provided with the clip as in Patent Document 1, the reaction force when the airbag is inflated acts on the jump base, and the force is transmitted from the pillar trim body to the boss portion provided below the jump base. As a result, the boss portion may be broken from the base on the pillar trim main body side. On the other hand, in addition to the boss portion provided with the clip of Patent Document 1 described above, when positioning pins are provided below the jump stand of the pillar trim main body for positioning when attaching the pillar trim main body to the pillar portion, The positioning pin also has a problem that it may be damaged when the airbag is inflated as described above.

  The present invention has been made in view of such a point, and an object thereof is to prevent the positioning pins of the pillar trim body from being damaged when the airbag is inflated.

  In order to achieve the above object, the pillar trim of an automobile according to the present invention is characterized in that the structure of the pillar trim body around the positioning pin has been devised.

  Specifically, the pillar trim of an automobile according to the first aspect of the invention is an automobile in which an airbag is disposed so as to extend in the vehicle body front-rear direction on the roof side of the vehicle and is covered and stored from the vehicle inner side by a top ceiling. A pillar trim having a pillar trim body located below the airbag and having a lower end edge of the top ceiling connected to an upper portion thereof and covering a vehicle inner surface of a pillar portion of a vehicle body, A plurality of jump tables having a guide surface for guiding the airbag to the inside of the vehicle are projected upward so as to be separated from each other in the longitudinal direction of the vehicle body, and the base of the jump table has a plate-like shape The connecting parts are connected to each other in the longitudinal direction of the vehicle body, and on the vehicle exterior side of the connecting part, an insertion part to be inserted into the insertion port of the pillar part of the vehicle body faces upward. The extending portion extends downward from the pillar trim main body so as to be separated from the vehicle trim, and is inserted into the positioning hole of the pillar portion at the tip of the extending portion. A positioning pin is provided on the outside of the vehicle, and a reinforcing rib of the protrusion is integrally formed on the outside of the extending portion so as to connect the lower surface of the connecting portion and the positioning pin.

  The pillar trim of the automobile according to the second invention is the pillar trim of the automobile according to the first invention, wherein wall portions connecting the extension part and the pillar trim body are provided at both ends of the extension part in the vehicle body front-rear direction. It is formed integrally and the extended portion is formed in a bridge shape.

  According to the first aspect of the present invention, since the reinforcing rib of the protrusion is integrally formed on the vehicle outer side of the extending portion, and the connecting portion and the positioning pin are connected by this reinforcing rib, the protruding state of the positioning pin is Even if the reaction force when the airbag is inflated is transmitted from the connecting portion and the extending portion to the positioning pin, the positioning pin can be prevented from being damaged.

  In addition, since the positioning pin is provided near the top of the pillar trim body to which the bottom edge of the top ceiling is connected, the accuracy of assembling the pillar trim to the body pillar is improved, so the bottom edge of the top ceiling is located above the pillar trim body. When connected, there is no gap in the connecting portion, and the appearance can be improved.

  According to the second aspect of the invention, since the extending portion is formed in a bridge shape and is integrally connected to the pillar trim main body, and the rigidity of the extending portion is increased, the positioning pin is more effectively prevented from being damaged. be able to.

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

  FIG. 1 is a diagram showing a side surface on the driver's seat side in the interior of an automobile, and a front occupant P1 and a rear occupant P2 seated on a front seat and a rear seat (not shown) are indicated by phantom lines. On the side surface of the vehicle body, an A pillar portion 1, a B pillar portion 3, and a C pillar portion 5 extending in the vertical direction are arranged in order from the front of the vehicle body. A front door 7 is disposed between the A pillar portion 1 and the B pillar portion 3, and a rear door 9 is disposed between the B pillar portion 3 and the C pillar portion 5. The side surfaces on the vehicle interior side of the pillar portions 1, 3, 5 of these vehicle bodies are respectively constituted by resin-made A pillar trims 11, B pillar trims 13, and C pillar trims 15. Among them, the B pillar trim 13 is composed of an upper upper pillar trim 13a and a lower lower pillar trim 13b, and a seat belt shoulder anchor 17 of a seat belt for a front seat is disposed above the upper pillar trim 13a. The shoulder anchor 17 is configured so that the height position can be adjusted up and down according to the physique of the front occupant P1.

  FIG. 2 shows an upper pillar trim 13a portion of the B pillar portion 3 (B pillar trim 13). In FIG. 2, 19 is an outer panel of the vehicle body, and 21 is an inner panel joined to the inner side of the outer panel 19. In addition, a rain rail 23 is attached to the inner side of the upper panel of the outer panel 19, and a roof rain junction 25 is disposed on the inner side of the rain rail 23. On the inner side of the roof rain junction 25, an airbag 27 of an airbag device for protecting a passenger's head when the automobile collides sideways crosses from the A pillar portion 1 to the B pillar portion 3, and the C pillar. It arrange | positions so that it may extend in the vehicle body front-back direction to the part 5 vicinity. The airbag 27 is folded and stored between a top sealing 29 that covers the inside of the roof rain junction 25.

  Below the airbag 27, an upper pillar trim 13a of the B pillar trim 13 is located. The upper pillar trim 13a covers a pillar trim body 31 that covers the inner surface of the pillar portion (the outer panel 19 and the inner panel 21) of the vehicle body. It has. As shown in FIGS. 3 and 4, the pillar trim main body 31 is formed in a substantially U-shaped cross section by a front surface portion 31 a on the vehicle inner side and a side surface portion 31 b on the front side and the rear side. A long hole 33 corresponding to the height adjustment of the seat belt shoulder anchor 17 is provided in the center of the front portion 31a.

  On the outer side (back side) of the upper portion of the pillar trim main body 31, the plate portion 39 as a connecting portion is in front so as to incline upward toward the outer side of the pillar trim main body 31 as shown in FIG. 2. It is integrally formed between the part 31a and both side part 31b. On the plate portion 39, two jump bases 35 on which the airbag 27 is disposed are projected upward so as to be separated from each other in the longitudinal direction of the vehicle body. These jump stands 35 include a side wall portion 35a on the front and rear sides of the vehicle body, an upper wall portion 35b that integrally connects the outer sides of the upper ends of the side wall portions 35a, an inner edge portion of the side wall portions 35a and the upper wall portion. Front wall portions 35c that integrally connect 35b are provided, and the plate portion 39 is formed in a box shape with the vehicle exterior opened. The base portion (lower end) of the front wall portion 35 c is integrally connected to the plate portion 39. In addition, a guide surface 37 that guides the inflating of the airbag 27 toward the vehicle inner side is integrally formed on the upper wall portion 35b of each jump base 35 so as to be continuous with the inner edge of the upper wall portion 35b. The guide surface 37 is inclined downward from the upper wall portion 35b toward the vehicle interior side. Accordingly, the base portions (lower ends) of the side wall portions 35 a facing each other of the two jump stands 35 are connected in the vehicle body front-rear direction by the plate portion 39.

  A groove portion 41 is formed between the inner side of each jump base 35 and the pillar trim main body 31, and a lower end edge of the top sealing 29 is inserted into the groove portion 41 and connected in a contact state. A plate portion 39 between the pillar trim main body 31 constitutes a part of the bottom portion of the groove portion 41.

  Further, on the front wall portion 35c on the vehicle inner side of each jump stand 35, a ridge portion 43 extending in the vertical direction protrudes toward the vehicle inner side, and the lower edge of the top ceiling 29 inserted into the groove portion 41 is formed. The pillar trim body 31 is sandwiched between the front portion 31a and the protrusion 43. The airbag 27 expands downward from the folded state when inflated, and is guided by the guide surface 37 of the jump base 35 to separate the lower end edge of the top ceiling 29 from the groove portion 41 and push it open to the inside of the vehicle. It is designed to bulge inward.

  The plate portion 39 between the side wall portions 35a facing each other of the jump bases 35 is formed with a raised portion 39a that is raised upward. An insertion port 46 is opened in a portion corresponding to the B pillar portion 3 (a pillar portion of the vehicle body) between the lower end of the rain rail 23 and the upper end of the inner panel 21, and the outside of the plate portion 39 is connected to the insertion port 46. A plate-like insertion portion 47 that is integrally protruded upward is inserted. The upper part of this insertion part 47 is formed so that it may bend on the vehicle outer side. An upper pillar trim 13a is attached to the vehicle body side so that the lower end edge of the rain rail 23 is sandwiched between the inside of the insertion portion 47 and the outside of the jump bases 35. The upper pillar trim 13a is attached to a portion corresponding to the B pillar portion 3 of the inner panel 21 by an attachment portion (not shown) provided below the upper pillar trim 13a.

  Between the plate part 39 and the upper part of the pillar trim main body 31, a through hole 49 that communicates with the groove part 41 and penetrates in the vertical direction is formed. Specifically, the through hole 49 is separated from the pillar trim main body 31 in a range extending from the raised portion 39a of the plate portion 39 and the raised portion 39a to a substantially central portion in the vehicle body front-rear direction of the jump bases 35. 39 (the bottom of the groove 41). Thus, the jump bases 35 and the pillar trim body 31 are integrally connected by the plate portions 39 on the vehicle body front and rear sides of the through holes 49 and the plate portions 39 corresponding to the side surface portions 31 b of the pillar trim body 31.

  On the back surface side (the side shown in FIG. 4) of the upper pillar trim 13a, the vertical walls 51 are provided so as to be located at both ends of the front portion 31a in the vehicle front-rear direction. The vertical walls 51 and the side surface portions 31b are connected by a plurality of first reinforcing ribs 53 that are spaced apart from each other in the vertical direction.

  A plate-like extended portion 55 extends downward on the lower surface of the plate portion 39, and the upper end edge of the extended portion 55 is integrally connected to the plate portion 39. The extending portion 55 is formed so as to be substantially perpendicular to the plate portion 39 and to be separated from the pillar trim main body 31 toward the vehicle outer side. As shown in FIG. The front and rear wall portions 56 connected to the front portion 31a of the pillar trim main body 31 are integrally formed, whereby the extending portion 55 is formed in a bridge shape.

  A cylindrical positioning pin 57 protrudes from the front end (lower end) of the extending portion 55 in the vehicle longitudinal direction center portion. On the other hand, a positioning hole 59 is formed in the upper portion of the inner panel 21 so as to correspond to the positioning pin 57 in the vehicle width direction (shown in FIG. 2), and the positioning pin 57 is inserted into the positioning hole 59. Thus, the upper portion of the pillar trim body 31 is positioned on the inner panel 21. Further, on the vehicle outer side of the extended portion 55, a second reinforcing rib 61 of a protrusion is integrally formed so as to connect the insertion portion 47 and the positioning pin 57. Specifically, the second reinforcing rib 61 is continuous in the vertical direction with the substantially central portion of the rear surface (vehicle outer surface) of the insertion portion 47 in the vehicle longitudinal direction, the lower surface of the plate portion 39 and the vehicle outer surface of the extending portion 55. The lower end thereof is integrally connected to the positioning pin 57 so as to extend. Third reinforcing ribs 63 are integrally provided on both sides of the second reinforcing rib 61 so as to protrude outwardly from the vehicle, and the third reinforcing ribs 63 are formed at both ends of the rear surface of the insertion portion 47 in the vehicle longitudinal direction. The lower end portion extends continuously to the upper end on the vehicle exterior side of the extending portion 55.

(Effect of embodiment)
Therefore, in the B-pillar trim 13 of the automobile of the present embodiment, the second reinforcing rib 61 of the protrusion is integrally formed on the lower surface of the plate portion 39 (connecting portion) and the outside of the extending portion 55, and the second Since the reinforcing rib 61 and the positioning pin 57 are connected to each other, the positioning pin 57 becomes strong, and even if the reaction force when the airbag 27 is inflated is transmitted from the plate portion 39 and the extending portion 55 to the positioning pin 57, the positioning pin 57 is positioned. Breakage of the pin 57 can be prevented.

  Furthermore, since the 2nd reinforcement rib 61 is provided so that the insertion part 47 and the positioning pin 57 may be connected, the rigidity of the insertion part 47 becomes high and it can prevent the failure | damage.

  Further, since the third reinforcing ribs 63 are further provided on both sides of the second reinforcing rib 61 in the insertion part 47 so as to extend over the extending part 55, the rigidity of the insertion part 47 is further increased, and the insertion part 47 can be more effectively prevented from being damaged.

  Further, since the extension portion 55 is formed in a bridge shape and is connected to the pillar trim main body 31, the extension portion 55 has high rigidity, so that the positioning pin 57 can be more effectively prevented from being damaged. it can.

  Further, since the positioning pin 57 is provided near the upper portion of the pillar trim body 31 to which the lower edge of the top ceiling 29 is connected, the assembly accuracy of the upper pillar trim 13a to the B pillar portion 3 of the vehicle body is improved. When the lower end edge of the top ceiling 29 is connected to the upper portion of 31, there is no gap in the connecting portion, and the appearance can be improved.

  Further, since the two jump bases 35 projecting from the upper part of the pillar trim body 31 of the upper pillar trim 13a are connected by the plate portion 39 as the connecting portion, the rigidity of the region can be increased and the airbag 27 is inflated. Can withstand the reaction force.

  Further, a through hole 49 penetrating in the vertical direction is formed between the plate portion 39 connecting the base portions of the jump bases 35 and a part of each of the jump bases 35 and the front part 31a on the vehicle interior side of the pillar trim body 31. The through hole 49 separates the plate 39 corresponding to the two jump bases 35 and a part of the jump base 35 from the pillar trim main body 31 to moderately weaken the rigidity of the upper portion of the pillar trim main body 31. It is possible to effectively reduce the impact on the head of the occupant at the time (head impact). Therefore, in this B pillar trim 13, it is possible to ensure an appropriate rigidity capable of withstanding a reaction force when the airbag 27 is inflated at the time of a side collision, and a passenger's safety.

  Further, by forming the insertion portion 47 on the plate portion 39 corresponding to the jump base 35, the rigidity of the plate portion 39 is increased, and the head impact is increased accordingly, but the insertion portion 47 is formed. Since the through hole 49 is formed between the plate portion 39 and the pillar trim body 31, the head impact can be reduced.

(Other embodiments)
In addition, the above-mentioned embodiment is an illustration of this invention, Comprising: This invention is not limited to this example. For example, the following configuration may be used.

  That is, in the above embodiment, the second reinforcing rib 61 is integrally formed on the vehicle exterior side of the extending portion 55 so as to connect the insertion portion 47 and the positioning pin 57. It is only necessary to provide at least the lower surface of the plate portion 39 (connecting portion) and the positioning pin 57.

  Moreover, in the said embodiment, although the 3rd reinforcement rib 63 was provided in the both sides of the 2nd reinforcement rib 61, the 3rd reinforcement rib 63 does not necessarily need to be provided.

  In the above embodiment, the extended portion 55 is formed in a bridge shape by the two wall portions 56, but the wall portion 56 is formed as a triangular rib integrally formed with the extended portion 55 and the plate portion 39. May be. Further, the end portion in the front-rear direction of the extending portion 55 may be connected to the side surface portion 31 b of the pillar trim main body 31.

  In addition, the through hole 49 is provided between the plate portion 39 (connecting portion) between the jump bases 35 and a part of both the jump bases 35 and the pillar trim main body 31, and the through hole 49 has at least the two jump bases. What is necessary is just to be provided between the plate part 39 and the pillar trim main body 31 between 35.

  In the above embodiment, two jump tables 35 are provided. However, the number of jump tables 35 is not limited to this, and three or more jump tables 35 may be provided. At this time, the base portion between adjacent jump stands 35 may be connected by a plate portion 39 as a connecting portion.

  In the above-described embodiment, the insertion port 46 for inserting the insertion portion 47 is formed at the boundary between the separate inner panel 21 and the rain rail 23. You may make it open to the panel 21. FIG.

  Moreover, although the example which applied this invention to the B pillar part 3 was shown in the said embodiment, this invention can also be applied to the A pillar trim 11 and the C pillar trim 15. FIG.

  As described above, the present invention is useful for a pillar trim of an automobile equipped with an air bag as a safety measure in the event of a side collision.

It is a side view of the right side in the vehicle interior part of the motor vehicle provided with the pillar trim which concerns on embodiment of this invention. FIG. 4 is a cross-sectional view corresponding to the line II-II in FIG. 3 (b) showing a state in which the upper pillar trim is attached to the vehicle body side. (A) is the perspective view which looked at the upper pillar trim from the vehicle inside, (b) is the figure which expands and shows the upper part of (a). It is the expansion perspective view of the upper part which looked at the upper pillar trim from the vehicle outside (back side).

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 A pillar part 3 B pillar part 5 C pillar part 11 A pillar trim 13 B pillar trim 13a Upper pillar trim 15 C pillar trim 27 Airbag 29 Top sealing 31 Pillar trim main body 35 Jump stand 37 Guide surface 39 Plate part (connection part)
47 Insertion part 55 Extension part 57 Positioning pin 59 Positioning hole

Claims (2)

In an automobile in which an airbag is disposed so as to extend in the longitudinal direction of the vehicle body on the inner side of the vehicle on the roof side and is covered and stored from the inner side of the vehicle by a top ceiling, the airbag is located below the airbag and is located above the top ceiling. A pillar trim having a pillar trim body to which a lower end edge of the vehicle body is connected and covers a vehicle inner surface of a pillar portion of a vehicle body,
A plurality of jump stands having a guide surface for guiding the airbag to the inside of the vehicle are projected upward from the upper portion of the pillar trim body so as to be separated from each other in the longitudinal direction of the vehicle body.
The bases of the jumping bases are connected to each other in the longitudinal direction of the vehicle body by a plate-like connecting part,
An insertion portion that is inserted into the insertion port of the pillar portion of the vehicle body protrudes upward on the vehicle exterior side of the connection portion, and an extension portion extends from the pillar trim main body to the vehicle exterior side. Extending downwards to be spaced apart,
A positioning pin to be inserted into the positioning hole of the pillar portion protrudes from the front end of the extension portion on the vehicle outer side, and a reinforcing rib of a protrusion is provided on the lower surface of the connection portion on the vehicle outer side of the extension portion. A pillar trim of an automobile, which is integrally formed so as to connect the positioning pin and the positioning pin. The pillar trim of an automobile according to claim 1.
A wall portion connecting the extension portion and the pillar trim body is integrally formed at both ends of the extension portion in the vehicle body front-rear direction, and the extension portion is formed in a bridge shape. Automobile pillar trim.

Images