JP5187496B2 - Side body structure - Google Patents

Description

The present invention
Provide roof side rails extending in the vehicle longitudinal direction at the left and right ends of the vehicle roof,
The roof side rail is provided with a roof side inner panel located on the vehicle interior side,
The present invention relates to a side body structure in which a welding work hole is provided in the roof side inner panel for passing a welding tool for welding and joining a plurality of panels positioned above the roof side inner panel.

The vehicle has a roof side inner panel positioned below the weld joint when the end of the side body outer panel in the vehicle width direction and the end of the roof panel in the vehicle width direction are overlapped and welded together. There is a vehicle to do. In such a vehicle, a roof working hole is provided in the roof side inner panel, and the welding tool is passed through the welding work hole from below, and the end of the side body outer panel in the vehicle width direction and the roof panel in the vehicle width direction The outer end is welded.
If the welding hole is left open after this welding joint is completed, noise will easily enter the passenger compartment. Therefore, conventionally, a dedicated cap for closing the welding hole has been manufactured. (See Patent Document 1 for a structure in which the roof side rail is provided on the left and right ends of the vehicle roof and the roof side inner panel is provided on the roof side rail).
JP 2004-291835 A

According to the conventional structure described above, a dedicated cap for closing the welding work hole is manufactured, and the welding work hole is closed with this cap. Therefore, the number of parts is increased and the manufacturing cost is increased.
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a side body structure that can reduce the number of parts and can reduce the manufacturing cost.

The feature of the present invention is that
Provide roof side rails extending in the vehicle longitudinal direction at the left and right ends of the vehicle roof,
The roof side rail is provided with a roof side inner panel located on the vehicle interior side,
A side vehicle body structure in which a hole for welding operation is provided in the roof side inner panel for passing a welding tool for welding and joining a plurality of panels positioned above the roof side inner panel,
An impact absorbing member is disposed on the vehicle interior side of the roof side inner panel, and the welding work hole is covered with the impact absorbing member,
The vehicle is provided with a sliding side door,
An upper rail that guides the sliding portion of the side door is disposed on the roof side rail,
The roof side inner panel is provided with a bulging portion that bulges inward in the vehicle width direction so as to form an upper rail arrangement space.
The welding hole is formed in the lower wall of the bulging portion;
The side door is arranged on the vehicle rear side from the center pillar,
The bulging portion is disposed above the center pillar, and the welding work hole is disposed above the center pillar,
The plurality of panels include a roof panel, a side body outer panel, and a roof cross member,
An end portion on the outer side in the vehicle width direction of the roof panel, an end portion on the inner side in the vehicle width direction of the side body outer panel, and an end portion on the outer side in the vehicle width direction of the roof cross member are overlapped with each other, and Form the
Spot welding the ends of the roof panel, the side body outer panel, and the roof cross member that form the mohawk groove with the welding tool that passes through the welding work hole,
Furthermore, the plurality of panels are constituted by a center pillar reinforcement, an upper rail lower panel, and a roof side inner reinforcement,
The center pillar reinforcement, the upper rail lower panel, and the roof side inner reinforcement, which are overlapped with each other, are spot-welded with the welding tool through the welding work hole . (Claim 1)

According to this configuration, the following effects can be obtained.
Since the shock absorbing member is arranged on the vehicle interior side of the roof side inner panel and the welding work hole is covered with the shock absorbing member, a dedicated cap for closing the welding work hole can be eliminated. . And it can prevent with an impact-absorbing member that noise penetrate | invades into the vehicle interior side from the hole for welding work. Also, for example, when the occupant jumps up due to an impact when the vehicle collides, the occupant's head can be received by the impact absorbing member, and the impact absorbing member can be deformed to absorb the collision energy, thereby Can be protected.
Even if the bulging portion is formed on the roof side inner panel, the plurality of panels can be welded to each other through a welding work hole in the lower wall of the bulging portion. Therefore, it is possible to produce a vehicle including a sliding movable side door without greatly changing the vehicle manufacturing process.
A welding work hole can be arranged below the welding position where it is easy to ensure the coupling rigidity between the center pillar and the roof, and the rigidity of the vehicle can be improved.
The coupling rigidity between the roof side rail and the center pillar can be ensured, and the rigidity of the vehicle body can be improved. (Claim 1)

In the present invention,
A through hole is formed in the upper rail lower panel portion located below the Mohawk groove portion,
When the welding tool having passed through the welding work hole is spot welded to each end of the roof panel, the side body outer panel, and the roof cross member through the through hole, the following effects can be obtained. (Claim 2 )

Even if the upper rail lower panel is located below the mohawk groove, the welding tool through the welding hole is passed through the through-hole, and the ends of the roof panel, the side body outer panel, and the roof cross member are spotted together. Can be welded. (Claim 2 )

In the present invention,
An engagement claw is provided on the shock absorbing member,
When the engaging claw is engaged with the peripheral edge of the welding hole, the following effects can be obtained. (Claim 3 )

Since the engagement absorbing claw is provided on the shock absorbing member and the engaging claw is engaged with the peripheral edge of the welding work hole, the mounting work of the shock absorbing member to the welding work hole can be simplified. The welding hole can be reliably closed with the impact absorbing member. (Claim 3 )

  Therefore, it is possible to provide a side body structure that can reduce the number of parts and can reduce the manufacturing cost.

  Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings. FIG. 1A and FIG. 1B show an automobile (corresponding to a vehicle) provided with a slide-movable side door 1. FIG. 1A shows a state in which the side door 1 is closed, and FIG. 1B shows a state in which the side door 1 is opened to the vehicle rear side. The side door 1 is a rear door that is located on the vehicle rear side of the center pillar 5 and is slidably supported on the vehicle body via the upper, center, and lower rail portions 2, 3, and 4.

  Next, the side body structure of the automobile will be described. 2 to 4 are views of the structure around the upper end of the right center pillar 5 (see FIGS. 1 (a) and 1 (b)) as viewed from diagonally right above the vehicle body, and FIG. FIG. 4 is a perspective view showing a structure in which the side body outer panel 17 and the center pillar reinforcement 22 (see FIG. 5) are removed, and FIG. 3 is a perspective view showing a structure in which the upper rail upper panel 21 is removed from the structure in FIG. FIG. 4 is a perspective view showing a structure in which an upper rail lower panel 20 and a roof side inner reinforcement 23 are removed from the structure of FIG. 3. The center pillar 5 includes a center pillar inner panel 39, a center pillar reinforcement 22 (see FIG. 5), a center pillar upper trim 38, and the like.

  As shown in FIGS. 1 to 4, roof side rails 7 extending in the vehicle front-rear direction are provided at both left and right ends of a roof 6 of an automobile, and an upper rail 8 that guides a slide portion of the side door 1 on the roof side rail 7. Is arranged. Further, the slide portion is supported on the end portion of the side door 1 on the vehicle front side Fr via a support arm 9 (see FIG. 1B), and the end portion 8A of the upper rail 8 on the vehicle front side Fr is connected to the vehicle front side. The side Fr is formed in an arc shape located on the inner side W1 in the vehicle width direction (see FIG. 3), and the door is in a closed state in which the slide portion is drawn together with the main body of the side door 1 toward the inner side W1 in the vehicle width direction ( 1 (see FIG. 1A).

  As shown in FIG. 4, the roof side rail 7 is provided with a roof side inner panel 10 located on the vehicle interior side. The roof side inner panel 10 includes a center portion 11 and a front portion 12.

[Structure of roof side inner panel 10]
As shown in FIG. 4, the center portion 11 of the roof side inner panel 10 has a trapezoidal mountain-shaped bottom wall 26 that bulges in the vehicle width direction inner side W <b> 1, and the vehicle width direction inner side W <b> 1 side of the lower wall 26. And a flange 28 that bends from the side wall 27 inward in the vehicle width direction W1. The flange 28 includes a plurality of clip attachment holes 29. A clip for fixing the rear washer hose and the roof antenna cable is attached to the clip attachment hole 29.

  The center portion 11 is a bulging portion that bulges inward in the vehicle width direction W1 so as to form an upper rail arrangement space S (a space for accommodating an end portion 8A (see FIG. 3) on the vehicle front side Fr of the upper rail 8). And located above the center pillar 5. A front portion 12 of the roof side inner panel 10 extends in the vehicle front-rear direction, and an end portion 11A on the vehicle front side Fr of the center portion 11 is connected to an end portion 12B on the vehicle rear side of the front portion 12. A space for accommodating the upper rail 8 is formed by an upper rail upper panel 21 and an upper rail lower panel 20 described later, and is open toward the outside in the vehicle width direction.

  As shown also in FIG. 5, a rod-like welding gun 13 (corresponding to a welding tool) for welding and joining a plurality of panels positioned above the center portion 11 to the center portion 11 of the roof side inner panel 10. A welding work hole 14 is provided, and the welding work hole 14 is covered with a first shock absorbing member 15A made of resin disposed on the vehicle interior side of the center portion 11. The welding work hole 14 is a rectangular hole that is long in the vehicle front-rear direction, and is formed in the lower wall 26 above the center pillar 5. The first shock absorbing member 15A receives the head of the occupant and absorbs collision energy to protect the occupant. As will be described later, the welding work hole 14 is located on the vehicle front side Fr from the space (including the upper rail arrangement space S) in which the upper rail 8 is accommodated.

[Structure around the roof side rail 7]
As shown in FIG. 5, the plurality of panels include a roof panel 16, a side body outer panel 17, and a roof cross member 18. Then, an end portion 16A of the outer side W2 of the roof panel 16 bent in an L-shaped section, an end portion 17A of the inner side W1 of the side body outer panel 17 bent in an L-shaped section, a roof, The end portion 18A of the cross member 18 on the outer side W2 in the vehicle width direction is overlapped with each other in the vertical direction, and a mohawk groove portion 19 along the vehicle front-rear direction (in order to connect the roof and the side body, between the roof and the roof side rail). And the end portions 16A, 17A, and 18A of the roof panel 16, the side body outer panel 17 and the roof cross member 18 forming the mohawk groove portion 19 are welded to each other. 14 is spot welded with an upward welding gun 13.

  An end portion 18A of the roof cross member 18 on the outer side W2 in the vehicle width direction has an end portion 16A on the outer side W2 in the vehicle width direction that is bent into a L-shaped cross section of the roof panel 16 and an L-shaped cross section on the side body outer panel 17. It is sandwiched between the bent end portion 17A of the vehicle width direction inner side W1 in the vertical direction.

[Structure of the front portion 24 of the roof side inner reinforcement 23]
As shown in FIGS. 2, 3 and 5, the front portion 24 of the roof side inner reinforcement 23 is overlapped on the front portion 12 of the roof side inner panel 10 (see FIG. 4) from the outer side W2 in the vehicle width direction and fixed by welding. It is. The front portion 24 extends from the upper side of the center pillar 5 to the vehicle front side Fr along the front portion 12 of the roof side inner panel 10. As shown in FIG. 5, the vehicle rear side end portion of the front portion 24 of the roof side inner reinforcement 23 is bent in an L-shape that is convex and inclined outward in the vehicle width direction W <b> 2. .

[Structure of upper rail lower panel 20]
As shown in FIGS. 3 and 5, the upper rail lower panel 20 is overlapped and welded to the center portion 11 of the roof side inner panel 10 from the outside of the passenger compartment. The upper rail lower panel 20 includes a first upper rail lower panel portion 20A that overlaps the center portion 11 of the roof side inner panel 10 on the vehicle rear side with respect to the center pillar 5, and a center portion of the roof side inner panel 10 above the center pillar 5. 11, and a second upper rail lower panel portion 20 </ b> B that bulges so as to be positioned at an upper interval with respect to 11. That is, the second upper rail lower panel part 20B is arranged at a position higher than the first upper rail lower panel part 20A via the vertical wall rising upward from the front edge of the first upper rail lower panel part 20A.

  That is, the lower wall 40, the side wall 30, and the flange 31 of the first upper rail lower panel portion 20A overlap the lower wall 26, the side wall 27, and the flange 28 (see FIG. 4) of the center portion 11 of the roof side inner panel 10, and are welded. Has been.

Further, the second upper rail lower panel portion 20B faces the lower wall 26 and the side wall 27 of the center portion 11 of the roof side inner panel 10, and the end 41 of the second upper rail lower panel portion 20B on the inner side W1 in the vehicle width direction. Are overlapped and welded to the flange 28 of the center portion 11 of the roof side inner panel 10 from above, and the lower end portion 42 of the second upper rail lower panel portion 20B on the outer side W2 in the vehicle width direction is the roof side inner reinforcement 23. The front portion 24 is welded and joined to the front portion 24 from the vehicle compartment outside (vehicle width direction outside W2). Thereby, the second upper rail lower panel portion 20B and the center portion 11 of the roof side inner panel 10 form a closed cross section. The space of the closed cross section is divided by a space (including the upper rail arrangement space S) that accommodates the upper rail 8 and a vertical wall of the upper rail lower panel 20 to form another space, which is open to the outside of the vehicle. Intrusion of sound and dust from the upper rail arrangement space S is prevented.
The welding work hole 14 is formed in a part of the lower wall 26 that forms the closed cross section, and is located on the vehicle front side Fr with respect to the space that accommodates the upper rail 8.
The closed cross section is located at the same position as the center pillar 5 in the longitudinal direction of the vehicle and continues to the center pillar 5. Thereby, the rigidity of the vehicle body can be improved, the side door 1 can be smoothly opened and closed, and the impact during the door closing operation can be effectively received. Further, the closed cross section extends to the inner side W1 in the vehicle width direction from the mohawk groove portion 19 and is located below the roof cross member 18 at the same position as the roof cross member 18 in the vehicle front-rear direction. As a result, the deformation can be transmitted to the roof cross member 18 with respect to the impact load that pushes the center pillar 5 applied to the center pillar 5 from the side of the vehicle into the inner side W1 in the vehicle width direction. Excessive deformation can be suppressed.

  As shown in FIG. 5, in the longitudinal section, the second upper rail lower panel portion 20 </ b> B is bent into an inclined L shape that is convex toward the vehicle width direction outer side W <b> 2.

[Structure of upper rail upper panel 21]
As shown in FIGS. 2 and 5, an upper rail upper panel 21 is overlapped and welded to the upper rail lower panel 20 from the outside of the passenger compartment. The upper rail upper panel 21 includes a first upper rail upper panel portion 21A that overlaps the first upper rail lower panel portion 20A, and a second upper rail upper panel portion 21B that overlaps the bulged second upper rail lower panel portion 20B. The upper rail 8 is fixed to the lower surface of the upper rail upper panel portion 21A by welding.

  A first through hole H1 penetrating in the vertical direction is formed in the upper rail lower panel portion 20C (a part of the second upper rail lower panel portion 20B) positioned below the mohawk groove portion 19 (FIGS. 2, 3 and 3). 5), a notch 43 is formed in the upper rail upper panel portion (a part of the second upper rail upper panel portion 21B) overlapping from above (see FIG. 2), and the welding gun through the welding work hole 14 is formed. The ends of the roof panel 16, the side body outer panel 17, and the roof cross member 18 are spot welded to each other through the first through hole H1 (see FIG. 5).

[Structure of the center portion 25 of the roof side inner reinforcement 23]
As shown in FIGS. 3 and 5, the center portion 25 of the roof side inner reinforcement 23 is provided with respect to the front portion 24 of the roof side inner reinforcement 23. The center portion 25 is bent in an L shape in a longitudinal section corresponding to the front portion 24 of the roof side inner reinforcement 23, and the end portion on the vehicle rear side of the front portion 24 and the second upper rail lower panel portion. It overlaps with 20B from the vehicle interior side and is integrally welded to these.

  In the longitudinal section, a space T is formed between the corner portion of the front portion 24 of the roof side inner reinforcement 23 and the center portion 25 of the roof side inner reinforcement 23. Further, the center portion 25 of the roof side inner reinforcement 23 is provided with a second through hole H2 that is long in the vehicle front-rear direction through which the tip of the welding gun 13 passes.

  As shown in FIG. 5, the plurality of panels include a center pillar reinforcement 22, an upper rail lower panel 20, and a front portion 24 of a roof side inner reinforcement 23, and an upper end portion 22 </ b> A of the center pillar reinforcement 22. The upper rail lower panel 20 (more specifically, the second upper rail lower panel portion 20B) on the vehicle interior side with respect to the upper end portion 22A, and the front portion 24 of the roof side inner reinforcement 23 on the vehicle interior side with respect to the upper rail lower panel 20 Are overlapped with each other, and these three are spot welded with a welding gun 13 facing obliquely upward through the welding work hole 14 and the second through hole H2.

[Structure of shock absorbing member 15]
FIG. 6 is a view showing the arrangement of the first shock absorbing member 15A and the second shock absorbing member 15B, and is a perspective view of the right roof side inner panel 10 and the center pillar 5 looking up from an oblique lower side on the vehicle interior side. . The first shock absorbing member 15A extends from above the center pillar 5 to the vehicle front side Fr, and the second shock absorbing member 15B is connected to an end of the first shock absorbing member 15A on the vehicle rear side so as to face the vehicle rear side. It extends. FIG. 7 is a view showing the first shock absorbing member 15A. As shown in both figures, the first shock absorbing member 15A and the second shock absorbing member 15B are formed in a lattice shape long in the vehicle front-rear direction. And it is covered with the roof lining 32 from the vehicle interior side (refer FIG. 5).

  As shown in FIGS. 6 and 7, a plurality of vertical shock absorbing pieces 33A extending in the vertical direction are connected by horizontal shock absorbing pieces 33B extending in the vehicle front-rear direction to connect the first shock absorbing member 15A and the second shock absorbing member. Each member 15B is configured. Then, the inclined first engaging claws 35 (engagement) projecting so as to be positioned higher toward the outer side in the width direction on the flat claw support plate 34 provided at one end in the longitudinal direction of the first shock absorbing member 15A. And a pair of second engaging claws 36 (corresponding to engaging claws) located on both sides of the first engaging claws 35 in the longitudinal direction of the shock absorbing member 15. Furthermore, the 3rd engagement nail | claw 37 is each provided in the some nail | claw support plate provided in 15 A of 1st shock absorption members at intervals in the longitudinal direction.

  As shown in FIG. 4, the first engagement claw 35 and the second engagement claw 36 are engaged with the peripheral edge of the welding work hole 14, and the third engagement claw 37 is provided on the roof side inner panel 10. The engagement portion is engaged. In this engaged state, the first engagement claw 35 protrudes obliquely above the vehicle width direction outer side W2 when viewed from the vehicle front-rear direction, and the second engagement claw 36 protrudes upward.

  As shown in FIG. 5, the periphery 15S on the vehicle interior side of the first shock absorbing member 15A is curved along the roof lining 32 (bently bent so as to be positioned on the outer side W2 in the vehicle width direction as it goes down). And is in contact with the inner surface of the roof lining 32. Thereby, it is possible to prevent the roof lining 32 from being deformed with a small force. The upper end portion of the center pillar upper trim 38 is engaged with the lower end portion of the roof lining 32 from the inner side W1 in the vehicle width direction.

  With the above structure, the first shock absorbing member 15A and the second shock absorbing member 15B receive the head of the occupant coming from below, and the first shock absorbing member 15A and the second shock absorbing member 15B are deformed to generate collision energy. Absorb. Thereby, a passenger | crew can be protected.

(A) is the state which closed the side door 1, (b) is the perspective view of the motor vehicle which shows the state which slid the side door 1 to the vehicle rear side and opened. FIG. 4 is a view of the structure around the upper end of the right center pillar as seen from the diagonally upper right side of the vehicle body, and is a perspective view showing the structure with the side body outer panel and the center pillar reinforcement removed. FIG. 3 is a diagram of the structure around the upper end of the right center pillar as viewed obliquely from the upper right side of the vehicle body, and is a perspective view showing the structure in which the upper rail reinforcement is removed from the structure of FIG. FIG. 4 is a diagram of the structure around the upper end of the right center pillar as viewed from the upper right side of the vehicle body, and is a perspective view showing the structure in which the upper rail lower panel and the roof side inner reinforcement are removed from the structure of FIG. Longitudinal cross-sectional front view of a side body structure of a car It is a figure which shows arrangement | positioning of an impact-absorbing member, and is the perspective view which looked up the roof side inner panel and center pillar of the right side from the diagonally downward direction of the vehicle interior side Diagram showing shock absorbing member

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Side door 5 Center pillar 6 Roof 7 Roof side rail 8 Upper rail 10 Roof side inner panel 11 A bulging part (center part of a roof side inner panel)
13 Welding tool (welding gun)
14 Welding hole 15A Shock absorbing member 16 Roof panel (multiple panels)
16A Roof panel outer side end 17 of the roof panel Side body outer panel (plural panels)
17A End 18 in the vehicle width direction of the side body outer panel 18 Roof cross member (multiple panels)
18A End of vehicle in width direction of roof cross member 19 Mohawk groove 20 Upper rail lower panel (multiple panels)
20C Upper rail lower panel part (upper rail lower panel part located below the Mohican groove)
22 Center pillar reinforcement (multiple panels)
23 Roof side inner reinforcement (multiple panels)
26 Lower wall (lower wall of bulge)
35, 36 engagement claw H1 through hole (first through hole)
S Upper rail arrangement space W1 Vehicle width direction inside W2 Vehicle width direction outside

Claims (3)

Provide roof side rails extending in the vehicle longitudinal direction at the left and right ends of the vehicle roof,
The roof side rail is provided with a roof side inner panel located on the vehicle interior side,
A side vehicle body structure in which a hole for welding operation is provided in the roof side inner panel for passing a welding tool for welding and joining a plurality of panels positioned above the roof side inner panel,
The impact absorbing member is disposed on the vehicle compartment side of the roof side inner panel, Ri Oh covers the welding hole in the shock-absorbing member,
The vehicle is provided with a sliding side door,
An upper rail that guides the sliding portion of the side door is disposed on the roof side rail,
The roof side inner panel is provided with a bulging portion that bulges inward in the vehicle width direction so as to form an upper rail arrangement space.
The welding hole is formed in the lower wall of the bulging portion;
The side door is arranged on the vehicle rear side from the center pillar,
The bulging portion is disposed above the center pillar, and the welding work hole is disposed above the center pillar,
The plurality of panels include a roof panel, a side body outer panel, and a roof cross member,
An end portion on the outer side in the vehicle width direction of the roof panel, an end portion on the inner side in the vehicle width direction of the side body outer panel, and an end portion on the outer side in the vehicle width direction of the roof cross member are overlapped with each other, and Form the
Spot welding the ends of the roof panel, the side body outer panel, and the roof cross member that form the mohawk groove with the welding tool that passes through the welding work hole,
Furthermore, the plurality of panels are constituted by a center pillar reinforcement, an upper rail lower panel, and a roof side inner reinforcement,
A side body structure in which the center pillar reinforcement, the upper rail lower panel, and the roof side inner reinforcement, which are superposed on each other, are spot-welded with the welding tool through the welding work hole . A through hole is formed in the upper rail lower panel portion located below the Mohawk groove portion,
The side body structure according to claim 1 , wherein the end portions of the roof panel, the side body outer panel, and the roof cross member are spot-welded to each other through the through hole through the welding tool that has passed through the welding work hole . An engagement claw is provided on the shock absorbing member,
The side body structure according to claim 1, wherein the engaging claw is engaged with a peripheral edge of the welding work hole .

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