JP2010120489A - Center pillar trim mounting structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a center pillar trim mounting structure capable of suppressing degradation of the strength-rigidity, and enhancing the mounting work efficiency of a center pillar trim on a vehicle body panel. <P>SOLUTION: In the center pillar trim mounting structure for covering the in-cabin side of a center pillar of a vehicle, an upwardly projecting locking part 32 is provided on a back side of an upper part of a center pillar trim 4. A lower end of a roof side inner panel 122 is arranged with a spacing on the center side W1 in the right-to-left direction of a vehicle with respect to an upper end of a center pillar inner panel 3. A locking hole 114 for receiving the locking part 32 of the center pillar trim 4 from the lower side is formed in a space between the lower end of the roof side inner panel 122 and an upper end of the center pillar inner panel 3. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a structure for mounting a center pillar trim that covers the inside of a center pillar of a vehicle.

Conventionally, in the mounting structure of the center pillar trim described above, a locking portion that protrudes to the left and right outer sides of the vehicle is provided on the upper back side of the center pillar trim, and a locking hole is formed in the center pillar inner panel along the left and right direction of the vehicle. The locking portion is locked in the locking hole (see Patent Document 1).
JP 2002-114110 A

The vehicle body near the upper end of the center pillar trim is a joint between the roof side rail and the center pillar, and is an important part of strength and rigidity such as the seat belt anchor attached. In addition, if the locking holes were machined in the center pillar inner panel, the strength and rigidity of the center pillar inner panel was likely to be reduced.
In a vehicle with a low roof, the seat belt anchor is arranged near the roof side rail, and the center side pillar reinforcement and the roof side reinforcement are welded to the roof side inner panel. Since the working hole is formed, there is no space for providing the locking hole, and it is difficult to apply the conventional structure to a vehicle in which the roof is set low.
Also, considering the workability of inserting the locking portion into the locking hole, the roof side rail is provided with a downward facing surface, and the locking hole is provided there. The downward facing surface could not be formed on the roof side rail.
The present invention has been made in view of the above circumstances, and its purpose is to suppress a decrease in strength and rigidity, and to improve the workability of attaching the center pillar trim to the vehicle body panel. It is in providing a mounting structure.

The feature of the present invention is that
A center pillar trim mounting structure that covers the inside of the center pillar of the vehicle,
A locking part protruding upward is provided on the upper back side of the center pillar trim,
The lower end of the roof side inner panel is arranged on the left and right center side of the vehicle with respect to the upper end of the center pillar inner panel,
A locking hole is provided between the lower end portion of the roof side inner panel and the upper end portion of the center pillar inner panel to receive the locking portion of the center pillar trim from below. (Claim 1)

According to this configuration, the center pillar inner panel has a locking hole for receiving the locking portion of the center pillar trim from the lower side between the lower end portion of the roof side inner panel and the upper end portion of the center pillar inner panel. It is not necessary to process the locking hole, and the decrease in strength and rigidity of the center pillar inner panel can be suppressed. Furthermore, the roof side inner panel is easy to manufacture and has a smaller shape than the case where the locking hole is formed at the lower end of the roof side inner panel, and the surface for the locking hole is not required and the bending of the roof side inner panel is small. It is possible to suppress a decrease in rigidity.
In addition, the vehicle has a low roof, and the seat belt anchor is arranged near the roof side rail, and further, welding for welding the center pillar reinforcement and the roof side reinforcement to the roof side inner panel is performed. Even in a vehicle in which the working hole is formed and there is no space for processing the locking hole, the locking hole that opens downward can be easily formed.
Thereby, the said latching | locking part can be inserted into a latching hole from the downward direction, and the workability | operativity of the insertion operation | work which inserts the said latching | locking part in a latching hole can be improved. (Claim 1)

In the present invention,
If the roof side inner panel, the roof side reinforcement, and the center pillar inner panel are overlapped and welded to each other in the pair of front and rear first welded portions located across the locking hole in the vehicle longitudinal direction, The range in which the stop hole is formed can be reinforced with the roof side reinforcement and the center pillar inner panel, and the rigidity of the vehicle body can be ensured despite the structure provided with the lock hole.
In addition, the roof side inner panel and the center pillar inner panel cannot be joined at the portion that becomes the locking hole, but the roof side inner panel, the roof side reinforcement, and the center pillar inner panel are overlapped on both the front and rear sides of the locking hole. Because it is welded together, the coupling length between the center pillar and the roof side rail (the length of the welding range in the longitudinal direction of the vehicle) can be increased to ensure the coupling rigidity between the center pillar and the roof side rail. Therefore, it is possible to suppress a decrease in the rigidity of the vehicle body. (Claim 2)

In the present invention,
The roof side inner panel, the center pillar inner panel, and the center pillar in the pair of front and rear second welded portions that are positioned between the pair of front and rear first welded portions and sandwich the locking hole in the vehicle longitudinal direction. If the reinforcement is overlapped and welded, the area where the locking holes are formed can be reinforced with the center pillar inner panel and the center pillar reinforcement, and the structure is provided with locking holes. The rigidity of the vehicle body can be ensured.
In addition, the roof side inner panel, the center pillar inner panel, and the center pillar reinforcement are overlapped and welded on both the front and rear sides of the locking hole, so that the combined length of the center pillar and the roof side rail (vehicle) The length of the welding range in the front-rear direction) can be increased to ensure the coupling rigidity between the center pillar and the roof side rail, and the decrease in the rigidity of the vehicle body can be suppressed to a minimum. In addition to the above-described operation according to the configuration of the second aspect, it is possible to further improve the coupling rigidity between the center pillar and the roof side rail. (Claim 3)

In the present invention,
When the lower end portion of the roof side inner panel forming the locking hole is configured as a bulging portion that bulges to the left and right center side of the vehicle, the locking hole can be expanded in the left and right direction of the vehicle. The workability of the operation of inserting the locking portion into the locking hole can be improved. Moreover, the lower end part of a roof side inner panel can be arrange | positioned close to a center pillar trim, and the structure of the latching | locking part of a center pillar trim can be simplified. (Claim 4)

In the present invention,
If the upper end portion of the center pillar inner panel facing the bulging portion is recessed toward the outside of the vehicle, the locking hole can be enlarged in the left-right direction of the vehicle, and the locking portion is inserted into the locking hole. The workability of the work can be further improved. Further, the amount of bulging of the bulging portion of the roof side inner panel can be reduced, and the formability of the roof side inner panel can be improved. Further, the bent portion of the panel serves as a starting point of deformation, but in the present invention, the amount of bulge can be reduced, so that the amount of bending of the roof side inner panel for forming the bulged portion is small, and the longitudinal direction of the vehicle is reduced. The substantially linear shape of the extending roof side inner panel is maintained, and a decrease in rigidity can be reduced. (Claim 5)

In the present invention,
The roof side inner panel is divided into a front roof side inner panel on the front side of the vehicle and a rear roof side inner panel on the rear side of the vehicle, and a connecting end of the front roof side inner panel and the rear roof side inner panel. The parts are connected to each other in the vicinity of the upper end of the center pillar,
When the lower end portion of the connecting end portion of the front roof side inner panel and the lower end portion of the connecting end portion of the rear roof side inner panel are configured as the bulging portion, the following action can be achieved. (Claim 6)

Since the lower end portion of the connecting end portion of the front roof side inner panel and the lower end portion of the connecting end portion of the rear roof side inner panel are formed in the bulging portion, the bent shape of the bulging portion is the front roof side. Formed at the end portions of the inner panel and the rear roof side inner panel, the moldability of the front roof side inner panel and the rear roof side inner panel can be improved.
In addition, the bulging portion has a two-sheet structure of the lower end portion of the connecting end portion of the front roof side inner panel and the lower end portion of the connecting end portion of the rear roof side inner panel, thereby improving the rigidity of the bulging portion. be able to. (Claim 6)

In the present invention,
The lower end portion of the connecting end portion of the front roof side inner panel is composed of a first rising piece that rises to the left and right center side of the vehicle, and a first extending piece that extends from the top of the first rising piece to the vehicle rear side. ,
The lower end portion of the connecting end portion of the rear roof side inner panel is composed of a second rising piece that rises to the left and right center side of the vehicle, and a second extending piece that extends from the top of the second rising piece to the vehicle front side. And
When the first extending piece and the second extending piece are overlapped and welded together, the bulging portion can be easily formed at the lower end portions of both connecting end portions, thereby reducing the manufacturing cost. be able to. Moreover, since it joins on the surface along a vehicle front-back direction, it can be set as a highly accurate roof side inner panel by adjustment at the time of joining. (Claim 7)

In the present invention,
The first rising piece is inclined so as to be located on the vehicle rear side toward the left and right center side of the vehicle,
When the second rising piece is inclined so as to be positioned on the vehicle front side toward the left and right center side of the vehicle, the first rising piece and the second rising piece become wider in the vehicle front-rear direction toward the base end side. The rigidity of the bulging portion formed by the first rising piece, the second rising piece, the first extending piece, and the second extending piece can be increased. In addition, the change in the closed cross section of the roof side rail is smoothly continued to reduce the concentration of stress in the locking hole. (Claim 8)

In the present invention,
On the upper end of the center pillar inner panel, an inclined surface is provided that is inclined so as to be positioned on the left and right outer sides of the vehicle toward the upper side,
As the locking portion is inserted into the locking hole, when the locking portion is guided to the locking hole by the inclined surface, the workability of the insertion work of inserting the locking portion into the locking hole is improved. It can be improved further. (Claim 9)

According to the present invention,
A reduction in strength and rigidity can be suppressed, and a center pillar trim mounting structure that can improve the workability of mounting the center pillar trim to the vehicle body panel can be provided.

Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings.
As shown in FIG. 1, a side pillar outer panel 1, a center pillar reinforcement 2, a center pillar inner panel 3 made of a metal plate, and a center pillar trim 4 made of a resin plate are provided in this order from the outside of the vehicle to provide a center pillar structure for an automobile. Is configured.

  As shown in FIGS. 4, 6 (a), 6 (b), and 7 (a), in this center pillar structure, the side body outer panel 1 and the center pillar reinforcement 2 are arranged on the inner side in the vehicle width direction. It is formed in a cross-sectional hat shape that opens to the inside of the vehicle (in the vehicle width direction (the left and right center side of the vehicle)) in the vehicle width direction, and the center pillar inner panel 3 and the center pillar trim 4 are arranged outside the vehicle width direction W2 (The left and right outer sides of the vehicle), and the same applies to the following).

  And the front flanges 2F1 and 3F1 along the vehicle vertical direction of the side body outer panel 1, the center pillar reinforcement 2 and the center pillar inner panel 3 and the rear flanges 2F2 and 3F2 along the vehicle vertical direction are arranged in the vehicle width. (Side body outer panel 1 and its front and rear flanges are not shown in the figure), and center pillar trim 4 is attached to center pillar inner panel 3 etc. Covered with center pillar trim 4.

  A weather strip 5 (see FIGS. 6B and 7A) is provided on the front flange (2F1, 3F1) and the rear flange (2F2, 3F2), which are welded and joined in piles of three. A mounting base 5K having a U-shaped cross section is externally fitted.

  As shown in FIGS. 1, 2, and 14, the center pillar trim 4 includes a lower trim 11 and an upper trim 10 that are formed separately from each other by using a mold, and an upper end portion and an upper portion of the lower trim 11. The lower end of the trim 10 is connected.

  Further, an anchor portion 7 having a laterally long shoulder anchor 6 for supporting the suspension by inserting the seat belt B is supported on the center pillar inner panel 3 through a latch mechanism 8 so as to be lifted and lowered by a certain pitch. Accordingly, the height of the anchor portion 7 can be changed and adjusted according to the physique of the occupant. 1 and 5 show a state where the shoulder anchor 6 is lowered to the lowest position (lower stroke end), and FIG. 2 shows a state where the shoulder anchor 6 is raised to the highest position (upper stroke end). is there.

[Structure of roof side rail 108]
As shown in FIGS. 9 and 11, the roof side rail 108 includes a roof side reinforcement 121, a roof side inner panel 122, and a side body outer panel 1 that are long in the vehicle front-rear direction.

The roof side reinforcement 121 is provided with a U-shaped bulging portion 121B that opens to the vehicle inner side W1, and the upper wall of the bulging portion 121B extends to the vehicle inner side W1 to form a joint portion 121S1. The upper end portion of the roof side inner panel 122 is bent to the vehicle inner side W1 to form a joint portion 122S1. The joining portion 121S1 on the roof side reinforcement 121 side and the joining portion 122S1 on the roof side inner panel 122 side are overlapped and welded together in a state where the former is positioned on the upper side of the latter.
Further, the end portion 1T on the vehicle inner side W1 of the side body outer panel 1 and the side end portion 89T of the roof panel 89 are overlapped with each other at the welding joint portion, and are appropriately welded and joined by a combination of panels. At the weld joint location above the center pillar 100, the end portion 88T of the roof reinforcement 88 is sandwiched between the side body outer panel 1 and the roof panel 89 and welded.
At the lower end portion of the roof side rail 108 other than the connection portion with the pillar, the joint portion formed on the side body outer panel 1, the joint portion formed on the lower end portion of the roof side reinforcement 121, and the roof side inner panel 122. A joining portion 122S2 (see FIG. 11) formed on the lower end portion of the side wall portion is overlapped in the vehicle width direction and welded. Thereby, the closed cross section of the roof side rail 108 is formed.

The roof side inner panel 122 is inclined so that the lower end side is located on the vehicle outer side W2. As shown in FIGS. 11, 12, and 13, the roof side inner panel 122 is divided into two parts: a front roof side inner panel 165 on the vehicle front side Fr and a rear roof side inner panel 166 on the vehicle rear side. It is.
The connecting end portions 165K and 166K of the front roof side inner panel 165 and the rear roof side inner panel 166 are overlapped with each other in the vicinity of the upper end portion of the center pillar 100 and welded (joined by spot welding).
Specifically, a rectangular opening 125 for welding work is formed in the connecting end 165K on the vehicle rear side of the front roof side inner panel 165, and the first curtain airbag bracket 130 (see FIG. 9) is fastened and fixed. A welding nut is attached. Similarly, a rectangular opening 125 for welding work is formed in the connecting end portion 166K of the rear roof side inner panel 166 on the vehicle front side Fr.
Then, the coupling end portions 165K and 166K are overlapped with each other so that the opening 125 of each panel is aligned above the center pillar 100, the periphery of the opening 125 is spot-welded, and the roof side which is long in the longitudinal direction of the vehicle. An inner panel 122 is configured.
Thus, since the front roof side inner panel 165 and the rear roof side inner panel 166 are overlapped and welded above the center pillar 100, the center pillar 100 and the roof side rail are provided even if the opening 125 is provided. It becomes possible to improve the rigidity of the connection part with 108.

As shown in FIGS. 10 and 13, the opening 125 is an opening for inserting a welding gun 127 for spot welding. The welding gun 127 inserted into the opening 125 includes a projecting upper end portion 126J projecting upward at the upper end of the back wall (the bottom surface of the hat cross-sectional shape, the outer surface in the vehicle width direction) 126 of the center pillar reinforcement 2; The side wall of the bulging portion 121B of the roof side reinforcement 121, which overlaps with the vehicle width direction, is welded and joined to the side wall W2. The code | symbol 80 in FIG. 13 is the welding part (2 places).
By welding and joining with the welding gun 127 as described above, it is possible to construct a reinforcement with high productivity. In addition, by using the opening 125 to weld and connect the protruding portions of the reinforcements to the vehicle outer side W2, the rigid cross-sectional shape of the reinforcements is made continuous so that the center pillar 100 and the roof side rail 108 are connected. It is possible to improve the rigidity of the connecting portion.

As shown in FIGS. 9 and 12, the lower end portion of the connecting end portion 165K of the front roof side inner panel 165 and the connecting end portion of the rear roof side inner panel 166 with respect to the upper end portion 3J of the center pillar inner panel 3. The lower end portion of 166K is disposed on the inner side W1 in the vehicle width direction (left and right center side of the vehicle) with a gap.
And the engagement which receives the 2nd latching piece 32 (equivalent to a latching | locking part) of the upper side trim 10 between the lower end part of both the connection end parts 165K and 166K and the upper end part 3J of the center pillar inner panel 3 from the lower side. A stop hole 114 is formed. Specifically, the lower end edges of both the connecting end portions 165K and 166K are the opening edges of the locking holes 114 on the inner side W1 in the vehicle width direction. The upper trim 10 and the second locking piece 32 will be described in detail later.
Further, the lower end portions of the connecting end portions 165K and 166K are configured as a bulging portion 122B that bulges to the left and right center sides of the vehicle, and the surface of the second locking piece 32 on the inner side W1 in the vehicle width direction is the bulging portion 122B. The mounting portion 19 of the upper trim 10 is attached to the roof side rail 108 (see FIGS. 7B, 8B, and 14).

  At the upper end of the center pillar inner panel 3, an inclined surface 3M is provided so as to be positioned on the left and right outer sides (vehicle width direction outer side W2) of the vehicle toward the upper side, and the second locking piece 32 is locked. The second locking piece 32 is configured to be guided to the locking hole 114 by the inclined surface 3M as it is inserted into the hole 114. Further, the upper end portion 3J of the center pillar inner panel 3 facing the bulging portion 122B is recessed toward the outside of the vehicle. That is, as will be described later, the upper end portion 3J of the center pillar inner panel 3 is provided with a bulging portion 3B that bulges outward in the vehicle width direction W2 (the bulging portion 3B of the center pillar inner panel 3).

[Structure of the bulging portion 122B of the roof side inner panel 122]
Next, the structure of the bulging portion 122B of the roof side inner panel 122 will be described in more detail.
A lower end portion of the connecting end portion 165K of the front roof side inner panel 165 has a first rising piece 91 rising to the left and right center side (vehicle width direction inner side W1) of the vehicle, and a vehicle rear side from the top portion of the first rising piece 91. And a first extending piece 93 extending in the direction.
Then, the lower end portion of the connecting end portion 166K of the rear roof side inner panel 166 has a second rising piece 92 that rises to the left and right center side (vehicle width direction inner side W1) of the vehicle, and the top of the second rising piece 92. The second extending piece 94 extends to the front side Fr, and the first extending piece 93 and the second extending piece 94 are overlapped and welded. The first extending piece 93 is located closer to the left and right center of the vehicle than the second extending piece 94.

  In addition, a connecting wall portion 95 composed of the first extending piece 93 and the second extending piece 94 is formed in a trapezoidal shape as viewed from the inside of the vehicle, and the first rising piece 91 is disposed toward the upper side of the vehicle. It is inclined so as to be located on the vehicle front side Fr.

  Further, the first rising piece 91 is inclined so as to be located on the vehicle rear side toward the left and right center side of the vehicle, and the second rising piece 92 is inclined so as to be located on the vehicle front side Fr toward the left and right center side of the vehicle. The first rising piece 91 and the second rising piece 92 are made wider toward the base end side.

As shown in FIGS. 12 and 13, in the pair of front and rear first welded portions 96 positioned with the locking hole 114 sandwiched in the vehicle longitudinal direction, the roof side inner panel 122 (the front roof side inner panel 165 or the rear The side roof side inner panel 166), the roof side reinforcement 121, and the center pillar inner panel 3 are overlapped and welded in this order from the vehicle interior side. The upper end portion of the center pillar inner panel 3 enters the closed cross section of the roof side rail 108.
Further, in the pair of front and rear second welded portions 97 located between the pair of front and rear first welded portions 96 and sandwiching the locking hole 114 in the vehicle longitudinal direction, the roof side inner panel 122 ( The front roof side inner panel 165 or the rear roof side inner panel 166), the center pillar inner panel 3, and the center pillar reinforcement 2 are overlapped and welded in this order from the vehicle inner side.
A lower end portion of the roof side reinforcement 121 is cut out between the pair of front and rear first welded portions 96 to form a notch 82, whereby the lower end portion of the roof side reinforcement 121 is connected to the second engagement of the upper trim 10. Interference with the stop piece 32 is avoided.
The notch 82 is notched upward from the upper end portion of the center pillar inner panel 3. The notch 82 is formed from the front of the second welded portion 97 to the rear of the second welded portion 97, and the number of panel members welded at the second welded portion 97 can be adjusted to enable welding. Yes.
Further, the cut-out 82 eliminates the need to provide the roof side reinforcement 121 with a shape along the bulged portion of the roof side inner panel or the concave portion of the center pillar inner panel (a shape for preventing interference due to bending), and serves as a base point for deformation. It is possible to reduce the rigidity reduction of the vehicle body due to the shape by eliminating the bent shape and maintaining the surface extending in the front-rear direction even in the range where the locking hole 114 is formed.
In the pair of front and rear third welded portions 81 that are located on both sides of the locking hole 114 in the vehicle front-rear direction and above the pair of front and rear second welded portions 97, the roof side inner panel 122 (the front roof The side inner panel 165 or the rear roof side inner panel 166), the roof side reinforcement 121, and the center pillar reinforcement 2 are overlapped and welded in this order from the vehicle inner side.

The vertical intermediate portion 161 of the roof side inner panel 122 positioned above the upper end portion of the bulging portion 122B of the roof side inner panel 122 and wider than the center pillar 100 is positioned on the vehicle inner side W1 toward the upper end portion. As shown, it is inclined more greatly than the bulging portion 122B.
As shown in FIG. 9, a bag body 131 of a curtain airbag 110 folded in a circular shape along the longitudinal direction of the roof side rail 108 is supported on the roof side rail 108 via a first curtain airbag bracket 130. The front end portion of the tether extending from the end portion of the bag body 131 on the vehicle front side Fr is fixed to the front pillar, and the end portion of the bag body 131 on the vehicle rear side is connected to the rear end portion of the roof side inner panel 122. It is supported via a curtain airbag bracket.

  The first curtain airbag bracket 130 includes a curtain airbag receiving portion 135 that extends along the longitudinal direction of the roof side rail 108, and a mounting portion that protrudes upward from the curtain airbag receiving portion 135 and is attached to the roof side rail 108. ing. The lower half portion of the curtain airbag receiving portion 135 is inclined so as to be positioned on the vehicle inner side W1 as it goes down, so that the bag body 131 can be easily inflated and deployed toward the vehicle inner side W1.

  An end portion of the curtain airbag receiving portion 135 in the vehicle front-rear direction and a lower end portion connected to the end portion are bent to the vehicle outer side W2. In this way, the bag body 31 is prevented from coming into contact with the edge of the curtain airbag receiving part 135.

  The opening 125 for the welding operation is covered with the first curtain airbag bracket 130 from the vehicle inner side W1.

The opening 125 is formed in the inclined surface portion 149 formed in the roof side inner panel 122 so as to be located on the vehicle inner side W1 as the upper side is located, and the cover portion 148 of the first curtain airbag bracket 130 corresponds to the inclined surface portion 149. It is made to incline so that the upper side may be located in the vehicle inside W1. That is, the cover-up portion 148 is configured as an inclined wall positioned on the vehicle inner side toward the upper end portion, and the folded bag body 131 is configured to be received from the obliquely upper side of the vehicle exterior by the cover-up portion 148.
The cover concealing portion 148 is provided with a U-shaped portion 170 along the outer peripheral edge of the folded bag body 131 in the longitudinal section. Accordingly, the bag body 131 that is inflated and deployed can be received from the diagonally upper portion of the vehicle outer side W2 by the dog-shaped portion 170, and can be easily directed toward the passenger side diagonally below the vehicle inner side W1, and the bag main body 131 can be more easily It can be inflated and deployed smoothly.

  Further, a plurality of spot welded portions (provided around the opening 125) of the connecting end portion 165K on the vehicle rear side of the front roof side inner panel 165 and the connecting end portion 166K on the vehicle front side Fr of the rear roof side inner panel 166. The spot welded portion) is covered from the vehicle inner side W1 by the covering portion 148 of the first curtain airbag bracket 130.

[Structure of anchor portion 7]
As shown in FIG. 1, the anchor portion 7 includes a locking pin 9 that is spring-biased toward the center pillar inner panel 3, and the locking pin 9 is bolted to the center pillar inner panel 3. The vertical position of the anchor portion 7 is determined by selectively locking with one of the upper and lower locking holes 13.

  When changing the position of the anchor part 7 to the upper Z position, the occupant grasps the anchor part 7 and raises it as it is. Then, the locking pin 9 locked in one locking hole 13 of the adjuster rail 12 slides on the inclined surface 12M formed above the locking hole 13 against the biasing force of the spring. Then, it gets over and is locked in another locking hole 13 adjacent in the upper Z. The inclined surface 12M is positioned on the inner side W1 in the vehicle width direction as it becomes the upper Z.

  When changing the position of the anchor portion 7 to the lower position, the occupant operates the knob 52 provided in the middle portion in the vertical direction of the anchor portion 7 to pull the locking pin 9 to the inner side W1 in the vehicle width direction, The locking between the locking pin 9 and one locking hole 13 is released, the anchor portion 7 is lowered, and the pulling operation is released. Then, the locking pin 9 is locked to another adjacent locking hole 13 below by the spring biasing force.

  As shown in FIGS. 1 and 2, the lower end portion 14K of the side portion of the roof lining 14 is overlapped with the upper end portion of the upper trim 10 of the center pillar trim 4 (the upper end portion of the back wall 21 described later) from the outer side W2 in the vehicle width direction. A vertically long rectangular opening 15 (see also FIG. 3) that allows the anchor portion 7 to move up and down relative to the center pillar inner panel 3 is formed in the upper trim 10, and the back surface 10U of the upper trim 10 (specifically, the back surface of the back wall 21) A thin cover member 16 made of a long resin that closes the opening 15 from the side is provided so as to move up and down integrally with the anchor portion 7.

  The roof of the automobile described above is set low, and the upper end portion 16J of the cover member 16 that has been raised protrudes upward Z from the upper end portion of the upper trim 10 of the center pillar trim 4 (the upper end portion 21J of the back wall 21) (see FIG. 2). And the upper end part 16J of the cover member 16 is arrange | positioned at the vehicle width direction outer side W2 of the lower end part 14K of the side part of the roof lining 14 (refer FIG. 2).

  Therefore, an interference preventing portion 17 that prevents interference between the upper end portion 16J of the rising cover member 16 and the lower end portion 14K of the roof lining 14 is provided in the upper trim 10 of the center pillar trim 4. Next, the structure of the upper trim 10 of the center pillar trim 4 will be described in detail.

[Structure of upper trim 10]
The upper trim 10 is slightly tilted to the rear side of the vehicle (see FIG. 3), and projects from the side wall of the vehicle front side Fr of the back wall 21 to the vehicle width direction outer side W2 from the downwardly extending back wall 21 along the oblique vertical direction. And a side wall 22 on the vehicle front side Fr along the diagonally up and down direction, and a side wall 23 on the vehicle rear side along the diagonally up and down direction that protrudes from the side part on the vehicle rear side of the back wall 21 toward the vehicle width direction outside W2. It has. As shown in FIG. 6A, FIG. 6B, and FIG. 7A, a corner portion that is a connecting portion 24 between the back wall 21 and the side wall 22 of the vehicle front side Fr, and the back wall 21 and the vehicle. A corner portion which is a connection portion 24 with the rear side wall 23 is bent in a circular arc shape.

  The upper end portion of the upper trim 10 is slightly enlarged in diameter, and is bent into a circular arc in a longitudinal section so that the upper end portion 21J of the back wall 21 is located on the inner side W1 in the vehicle width direction, and the side wall 22 of the vehicle front side Fr The upper end of the side wall 23 is bent in an arc shape so that the upper end portion is located on the vehicle front side Fr, and the upper end portion of the side wall 23 on the rear side of the vehicle is bent in the vertical section arc shape so that the upper end portion is located on the vehicle rear side. is doing.

[Structure of interference preventing portion 17 of upper trim 10]
As shown in FIGS. 1, 2, and 4, a pair of guide ribs 18 that guide the upper end 16 </ b> J of the cover member 16 away from the design surface 10 </ b> M of the back wall 21 of the upper trim 10 as the cover member 16 is raised. The interference prevention unit 17 is configured to project from the rear surface 10U of the back wall 21 above the opening 15 toward the vehicle width direction outer side W2. Specifically, the pair of guide ribs 18 are provided on the upper Z on both outer sides in the width direction of the opening 15 so as to be along the vertical direction, and the distance between the pair of guide ribs 18 is set wider than the width of the opening 15. is there.

  In addition, the guide surface 18M of the guide rib 18 is formed on an inclined surface that is farther from the design surface 10M of the back wall 21 of the upper trim 10 toward the upper end portion, and the guide rib 18 is formed in a triangular shape when viewed in the vehicle longitudinal direction. That is, the lower end of the guide surface 18M formed on the inclined surface smoothly continues to the back surface 10U of the back wall 21, and the upper end of the guide surface 18M has a predetermined height (described later) from the back surface 10U of the back wall 21 to the outer side W2 in the vehicle width direction. The height of the engaging portion 36 is higher than the back surface 10U. The upper ends of the pair of guide ribs 18 are located below the lower end of the substrate 26 of the mounting portion 19 to be described later that is lifted from the back surface 10U of the back wall 21 of the upper trim 10. A rectangular auxiliary rib 40 as viewed from the front and rear of the vehicle having a constant height dimension (a dimension along the thickness direction of the back wall 21) extends from the upper end of the guide rib 18 to the upper side Z so that the base plate 26 and the back wall 21 It has entered between the back surface 10U (see FIG. 2). By doing in this way, the undercut in a shaping | molding process can be avoided and the structure of a shaping | molding die can be simplified.

[Structure of mounting portion 19 of upper trim 10]
As shown in FIGS. 1, 3, and 4, the attachment portion 19 of the upper trim 10 to the center pillar inner panel 3 is provided on the back surface 10 </ b> U of the upper end portion 21 </ b> J of the back wall 21 via the leg portion 25. Is lifted from the back surface 10U of the back wall 21, and the upper end portion 16J of the raised cover member 16 is inserted between the attachment portion 19 and the back surface 10U (see FIG. 2).

  The mounting portion 19 includes a flat plate-like substrate 26 that is long in the width direction of the upper trim 10 and a locking member having an L-shaped cross section that extends upward Z from the protruding upper end portion (hereinafter referred to as a protruding upper end portion 28) of the substrate 26. 27, and the leg portion 25 is interposed between both end portions of the substrate 26 in the longitudinal direction (width direction of the upper trim 10) and the upper end portion 21 </ b> J of the back wall 21 of the upper trim 10. A cutout 58 that opens downward is formed at the lower end of the substrate 26. As described above, the locking member 27 protruding upward is provided on the upper back surface side of the upper trim 10 (center pillar trim).

  The substrate 26 faces the back surface 10U of the back wall 21 of the upper trim 10 in parallel. A first reinforcing rib 41 projecting outward in the vehicle width direction W2 is formed on the surface of the outer peripheral portion of the substrate 26 in the vehicle width direction outer side W2. The leg portions 25 are formed in a rib shape that is long in the vertical direction (longitudinal direction of the upper trim 10), and two pairs are provided on the back surface of the upper end portion of the upper trim 10 (see FIG. 3). Each pair of leg portions 25 is located across the center in the width direction of the back wall 21, and is positioned with a gap wider than the width of the upper end portion 16 </ b> J of the cover member 16. It is located across another pair of leg portions 25. Another pair of inner legs 25 are positioned with a pair of auxiliary ribs 40 therebetween. The upper ends of the other pair of inner leg portions 25 are located lower than the upper ends of the outer pair of leg portions 25.

  1 and 2, when the cover member 16 is raised, the upper end portion 16J of the cover member 16 rides on the guide surface 18M of the guide rib 18 and is elastically deformed in a direction away from the design surface 10M of the upper trim 10. While being guided. Then, the upper end portion 16J of the cover member 16 enters between the substrate 26 and the back surface 10U of the back wall 21, and protrudes upward Z from the upper end portion 21J of the back wall 21. Further, the upper end portion 16J of the cover member 16 enters between another pair of inner leg portions 25.

  The L-shaped locking member 27 includes a first locking piece 31 extending from the protruding end portion below the upper end of the protruding upper end portion 28 toward the vehicle width direction outer side W2, and the vehicle of the first locking piece 31. A second locking piece 32 extending from the end of the width direction outer side W2 toward the upper end side so as to be positioned on the vehicle width direction outer side W2 (see FIG. 8B), and the width direction of the upper end portion of the upper trim 10 The vehicle is located on the vehicle rear side with respect to the center of the vehicle. The L-shaped locking member 27 and the protruding upper end 28 form an upper open groove.

  As shown in FIGS. 4 and 8B, the length of the second locking piece 32 in the vertical direction is longer than the length of the first locking piece 31 in the vehicle width direction, and the upper end of the second locking piece 32. The portion is bent outward in the vehicle width direction W2. As shown in FIG. 3, the back wall 21 is slightly tilted toward the vehicle rear side as described above in the vehicle width direction, but the second locking piece 32 is along the vertical direction in the vehicle width direction.

  As shown in FIG. 4, there are a plurality (three in this embodiment) of the rear surface of the second locking piece 32, the bottom surface of the first locking piece 31, and the surface of the substrate 26 in the vehicle width direction outer side W <b> 2. The second reinforcing rib 42 is provided integrally. The plurality of second reinforcing ribs 42 extend downward on the back surface of the second locking piece 32 from the bottom surface of the bent upper end portion of the second locking piece 32 and on the bottom surface of the first locking piece 31. Is extended to the inner side W1 in the vehicle width direction, extends to the lower end side of the substrate 26 on the surface of the outer side W2 in the vehicle width direction, and continues to the first reinforcing rib 41 along the width direction of the upper trim 10.

  Further, rib-like side walls 29 are provided between both end portions of the first locking piece 31 in the width direction of the upper trim 10 and the upper end edge of the projecting upper end portion 28 of the upper trim 10 to narrow the groove width of the groove portion. It is. The bulging portion 122 </ b> B of the roof side inner panel 122 is inserted into the gap S between the pair of side walls 29 and the lower end portion of the second locking piece 32. By narrowing the groove width as described above, it is possible to improve the mounting positioning accuracy of the upper trim 10 to the vehicle body and to improve the moldability of the groove portion. A cylindrical positioning pin 30 protrudes from the lower end of the vehicle front side Fr of the board 26 toward the vehicle width direction outer side W2.

  The center pillar inner is between the side wall 22 on the vehicle front side Fr and the side portion on the vehicle front side Fr of the substrate 26 and between the side wall 23 on the vehicle rear side and the side portion on the vehicle rear side of the substrate 26. A connecting portion 62 having a U-shaped cross section with respect to the panel 3 or the like is formed. Of these connecting portions 62, the connecting portion 62 located on the vehicle front side Fr is opened toward the vehicle front side Fr, and the connecting portion 62 located on the vehicle rear side is opened toward the vehicle rear side. That is, these connecting portions 62 extend from the edge of the side wall 22 or the side wall 23 in the vehicle width direction outer side W2 toward the other side wall, and are folded back at the front end of the center pillar inner panel 3 to the front flange 3F1 or the rear side. Mounting pieces 62A and 62B are formed so as to overlap the side flange 3F2 (see FIG. 6A).

As described above, the bulging portion 3B of the center pillar inner panel 3 that bulges outward in the vehicle width direction W2 at the upper end portion 3J of the center pillar inner panel 3 at the connection portion between the center pillar 100 and the roof side rail 108. Is provided.
Then, as shown in FIG. 7B, the upper end portion of the second locking piece 32 is inserted into the locking hole 114 from below, and the surface of the upper end portion of the second locking piece 32 on the inner side W1 in the vehicle width direction. Is brought into contact with the bulging portion 122B of the roof side inner panel 122 to position the upper trim 10 in the vehicle width direction, and the positioning pin 30 is attached to the center pillar inner panel 3 as shown in FIG. The vehicle is inserted into the formed positioning hole 35 to position the vehicle up and down.

  Further, a piece 62A (see FIG. 4) of the connecting portion 62 located on the vehicle front side Fr in the vehicle width direction outer side W2 is overlapped with the front flanges 2F1 and 3F1 from the vehicle width direction inner side W1. A mounting base portion 5K having a U-shaped cross section is fitted outside, and a piece 62B (see FIG. 4) of the connecting portion 62 located on the vehicle rear side in the vehicle width direction outer side W2 is connected to the rear flanges 2F2 and 3F2 in the vehicle width direction inner side W1. A mounting base 5K having a U-shaped cross section of the weather strip 5 is externally fitted to these (see FIG. 6A). In this way, the position of the upper trim 10 with respect to the center pillar inner panel 3 is determined.

  As shown in FIGS. 3 and 8A, an engaging portion 36 that engages and holds the lower end portion 14 </ b> K of the roof lining 14 is formed at the upper end portion of the upper trim 10. Specifically, the engaging portion 36 is formed from the upper end portion 21J of the back wall 21 of the upper trim 10 to the upper end portions of the pair of outer leg portions 25, and the leg portion 25 located on the back wall 21 side of the upper trim 10 is formed. The engaging portion 36 is configured by cutting out the upper end portion of the lower portion. The engagement portion 36 can reliably position the lower end portion 14K of the roof lining 14 with respect to the upper end portion 21J of the back wall 21 of the upper trim 10. The engaging portion 36 is formed only on the back wall 21 and can only be positioned in the vehicle width direction with the engaging portion 36 alone, but the upper end of the upper trim 10 has a shape of the back wall 21. Since the vehicle has a side wall 22 on the vehicle front side Fr and a side wall 23 on the vehicle rear side, and the lower end portion 14K of the roof lining 14 is also formed in a shape that matches the shape of the upper end portion of the upper trim 10, the vehicle is defined by each side wall. Positioning in the front-rear direction is also possible.

  Then, the lower end portion 14K of the roof lining 14 is bent in an arc shape in the vehicle width direction outer side W2, and the lower end edge 14K1 facing the vehicle width direction outer side W2 of the roof lining 14 is engaged with the engagement portion 36 on the leg 25 side. The design surface 14M of the lower end portion 14K of the roof lining 14 is received by the upper end portion 21J of the back wall 21 of the upper trim 10 from the vehicle width direction inner side W1. Since the upper end portion 21J of the back wall 21 is bent in a circular arc shape so that the upper end portion 21J is located on the inner side W1 in the vehicle width direction (see FIG. 8A), the design of the lower end portion 14K of the roof lining 14 is designed. The surface 14M can be stably received from the inner side W1 in the vehicle width direction by the upper end portion 21J of the back wall 21.

  As shown in FIG. 4, there is a vertical direction between the back wall 21 of the upper trim 10 and the side wall 22 on the vehicle front side Fr and between the back wall 21 of the upper trim 10 and the side wall 23 on the vehicle rear side. A plurality of L-shaped plate-shaped third reinforcing ribs 43 arranged at predetermined intervals are integrally constructed. The plate surface of the third reinforcing rib 43 faces obliquely in the vertical direction (the direction along the longitudinal direction of the upper trim 10). In addition, among the plurality of third reinforcing ribs 43 connected to the side wall 23 on the vehicle rear side, the plurality of third reinforcing ribs 43 on the lower half side of the upper trim 10 (sixth third reinforcing ribs 43 in the present embodiment). A grid-like rib is formed by extending a fourth reinforcing rib 44 extending in the vertical direction.

  And the 3rd reinforcement rib 43 located in the both sides of the upper end part of the opening part 15, the both sides of the lower end part of the opening part 15, and the both sides of the up-down direction center part of the opening part 15 is replaced with the remaining 3rd reinforcement ribs. A guide portion 45 that extends toward the center in the width direction of the back wall 21 from 43 and guides both side portions of the cover member 16 in the vertical direction is provided at the extended end portion.

  The guide portion 45 located on the rear side of the vehicle in the width direction of the back wall 21 is formed by forming a cutout portion 61 at the base of the third reinforcing rib 43 on the back surface 10U side of the back wall 21, and the front of the vehicle. The second guide portion 45 located on the side Fr is configured by connecting an L-shaped piece 46 having an L-shaped cross section that is open to the inner side W1 in the vehicle width direction and the vehicle rear side at the base of the third reinforcing rib 43. . In this way, undercutting in the molding process can be avoided, and the configuration of the molding die constituting the guide portion 45 can be simplified.

  As shown in FIGS. 1, 2, and 4, a receiving portion 47 for receiving the cover member 16 from below is provided below the opening 15 in the back surface 10 </ b> U of the back wall 21, so that the anchor portion 7 is attached. The cover member 16 in the state before being assembled is prevented from dropping downward from the upper trim 10 (the anchor portion 7 is assembled to the cover member 16 after the cover member 16 is assembled to the upper trim 10). The receiving portion 47 is composed of a triangular triangular rib 48 which is narrowed in the vehicle longitudinal direction along the vertical direction and a lateral rib 49 along the width direction of the back wall 21, and the lateral rib 49 is formed at the lower end of the triangular rib 48. The middle part in the longitudinal direction is continuous.

[Structure of cover member 16]
As shown in FIGS. 1, 2, and 4, a longitudinally long rectangular insertion hole 57 for inserting the anchor portion 7 is formed at the center in the vertical direction of the cover member 16, and the cover member 16 extends in the vehicle width direction. A fifth reinforcing rib 55 having a low height projecting outward in the vehicle width direction W2 is formed around the insertion hole 57 on the surface of the inner side W1 (see FIG. 7A), and the anchor portion 7 is inserted into the insertion hole 57. I'm allowed. Further, on the outer periphery of the cover member 16, a low-height ridge 59 protruding inward in the vehicle width direction W <b> 1 (on the back wall 21 side) is formed, and the top of the ridge 59 abuts against the back surface 10 </ b> U of the back wall 21. It is configured to slide on the back surface 10U.

  As a result, both side portions of the cover member 16 slide and move together with the anchor portion 7 while being guided by the guide portion 45 and move up and down. In this case, the ridge 59 abuts against the back surface 10U of the back wall 21 and slides on the back surface 10U to reduce the contact area and secure the contact area between the side portion of the cover member 16 and the guide portion 45. The cover member 16 can be smoothly slid relative to the back surface 10U of the back wall 21. Moreover, it is prevented that the design surface located in the said opening part 15 of the cover member 16 is damaged, and external appearance quality is improved.

[Structure of connecting portion with respect to lower trim 11 of upper trim 10]
As shown in FIGS. 1, 2, and 4, a step is formed so that the upper end of the lower trim 11 overlaps the lower end of the upper trim 10. Specifically, the lower end portion of the upper trim 10 is positioned on the outer side W2 in the vehicle width direction with respect to the middle portion of the upper trim 10 in the vertical direction. A rectangular base 60 that is recessed in the vehicle width direction outer side W2 is formed at the lower end portion of the upper trim 10, and the vehicle width direction outer side W2 that engages with the engagement hole in the upper end portion of the lower trim 11 is formed on the base 60. An engaging claw 50 protruding in the shape is formed. A belt insertion hole 51 through which the seat belt B is inserted is formed between the upper end portion of the lower trim 11 and the upper end portion of the pedestal 60.

Longitudinal sectional view of the center pillar structure with the shoulder anchor lowered to the lowest position (lower stroke end) Longitudinal sectional view of the center pillar structure with the shoulder anchor raised to the highest position (upper stroke end) View of the upper trim of the center pillar trim before attaching the anchor, as seen from the inside in the vehicle width direction The perspective view which looked at the upper trim of the center pillar trim before attaching the anchor part from the vehicle width direction outside The upper trim with the shoulder anchor lowered to the lowest position (lower stroke end) (A) CC sectional view of FIG. 3 (b) DD sectional view of FIG. (A) EE sectional view of FIG. 3 (b) AA sectional view of FIG. (A) JJ sectional view of FIG. 3 (b) HH sectional view of FIG. Vertical section of the center pillar on the right side of the car body and the surrounding structure It is a longitudinal cross-sectional view which shows the welding joining process of a roof side reinforcement and a center pillar reinforcement, and CC sectional drawing of FIG. Diagram showing the upper structure of the center pillar before installing the curtain airbag bracket Perspective view showing the upper structure of the center pillar before installing the curtain airbag bracket View of the center pillar on the right side of the car body and the structure around it from the inside of the car Perspective view showing mounting structure of center pillar trim

Explanation of symbols

2 Center pillar reinforcement 3 Center pillar inner panel 3M Inclined surface 3J Upper end portion of center pillar inner panel 4 Center pillar trim 32 Locking portion 91 First rising piece 92 Second rising piece 93 First extending piece 94 Second extending piece 95 Connecting wall portion 96 First welded portion 97 Second welded portion 98 Inclined surface 100 Center pillar 114 Locking hole 121 Roof side reinforcement 122 Roof side inner panel 122B Swelling portion 165 Front roof side inner panel 165K Front roof side inner panel Connecting end portion 166 Rear roof side inner panel 165K Connecting end portion Fr of rear roof side inner panel Vehicle front side W1 Left and right center side of vehicle (inner side in vehicle width direction)
W2 Outer side of the vehicle (outside in the vehicle width direction)

Claims (9)

A center pillar trim mounting structure that covers the inside of the center pillar of the vehicle,
A locking part protruding upward is provided on the upper back side of the center pillar trim,
The lower end of the roof side inner panel is arranged on the left and right center side of the vehicle with respect to the upper end of the center pillar inner panel,
A center pillar trim mounting structure in which a locking hole for receiving a locking portion of the center pillar trim from below is provided between a lower end portion of the roof side inner panel and an upper end portion of the center pillar inner panel.   2. The pair of front and rear first welded portions located between the locking holes in the longitudinal direction of the vehicle, wherein the roof side inner panel, the roof side reinforcement, and the center pillar inner panel are overlapped and welded. Mounting structure of center pillar trim as described.   The roof side inner panel, the center pillar inner panel, and the center pillar in the pair of front and rear second welded portions that are positioned between the pair of front and rear first welded portions and sandwich the locking hole in the vehicle longitudinal direction. The center pillar trim mounting structure according to claim 2, wherein the reinforcement is overlapped and welded.   The center pillar trim according to any one of claims 1 to 3, wherein a lower end portion of the roof side inner panel that forms the locking hole is formed as a bulging portion that bulges to the left and right center side of the vehicle. Mounting structure.   The center pillar trim mounting structure according to claim 4, wherein an upper end portion of the center pillar inner panel facing the bulging portion is recessed outward. The roof side inner panel is divided into a front roof side inner panel on the front side of the vehicle and a rear roof side inner panel on the rear side of the vehicle, and a connecting end of the front roof side inner panel and the rear roof side inner panel. The parts are connected to each other in the vicinity of the upper end of the center pillar,
The center pillar trim attachment according to claim 4 or 5, wherein a lower end portion of the connecting end portion of the front roof side inner panel and a lower end portion of the connecting end portion of the rear roof side inner panel are formed in the bulging portion. Construction. The lower end portion of the connecting end portion of the front roof side inner panel is composed of a first rising piece that rises to the left and right center side of the vehicle, and a first extending piece that extends from the top of the first rising piece to the vehicle rear side. ,
The lower end portion of the connecting end portion of the rear roof side inner panel is composed of a second rising piece that rises to the left and right center side of the vehicle, and a second extending piece that extends from the top of the second rising piece to the vehicle front side. And
The center pillar trim mounting structure according to claim 6, wherein the first extending piece and the second extending piece are overlapped and welded together. The first rising piece is inclined so as to be located on the vehicle rear side toward the left and right center side of the vehicle,
The center pillar trim mounting structure according to claim 7, wherein the second rising piece is inclined so as to be positioned closer to the vehicle front side toward the left and right center side of the vehicle. On the upper end of the center pillar inner panel, an inclined surface is provided that is inclined so as to be positioned on the left and right outer sides of the vehicle toward the upper side,
The center pillar trim mounting structure according to any one of claims 1 to 8, wherein the locking portion is guided to the locking hole by the inclined surface as the locking portion is inserted into the locking hole. .

Images