JP6099205B2 - Auto body structure - Google Patents

Description

  The present invention relates to a vehicle body structure for an automobile in which a front end of a door is pivotally supported on a door mounting portion of an automobile cabin via an upper door hinge and a lower door hinge.

  Japanese Laid-Open Patent Publication No. 2004-228667 discloses a door bracket that includes a long hole and a locking means on the outer peripheral portion of a body bracket of an automobile door hinge and a hinge pin that pivotally supports the door bracket.

JP 2003-341363 A

  By the way, since the thing described in the said patent document 1 provided the door checker in the nearest position of a hinge pin, when the door is opened and closed, the relative movement distance of the long hole of a door checker and a latching means can be ensured enough. However, there is a possibility that a large load acts on the door checker to cause breakage, or the door opening / closing feeling is lowered.

  Further, in the cabin for an automobile, the cross-sectional area of the side sill is increased due to a demand for strength, and as a result, the vertical height of the door may be reduced. When trying to attach a general door checker to such a small door in the vertical direction, there is a problem that it is difficult to secure a space for arranging the door checker because it interferes with the door hinge.

  The present invention has been made in view of the above-described circumstances, and an object thereof is to ensure the support rigidity of a door while making it possible to easily attach a door checker to a door having a small vertical cabin height.

To achieve the above object, according to the first aspect of the present invention, there is provided a vehicle body structure in which a front end of a door is pivotally supported on a door mounting portion of an automobile cabin via an upper door hinge and a lower door hinge. The door mounting portion is a steering hanger support bracket that supports a steering hanger, and a hinge base of one door hinge of the upper door hinge and the lower door hinge is fastened to a vehicle width direction outer surface of the steering hanger support bracket with a bolt , A door checker mounting seat that extends the hinge base inward in the vehicle width direction is fastened with a bolt to the rear surface of the steering hanger support bracket , the door checker is supported on the door checker mounting seat, and the rear surface of the front pillar lower portion of the cabin. The steering hanger support bracket Body structure of a motor vehicle, characterized in that fixing the is proposed.

According to the second aspect of the present invention, in addition to the configuration of the first aspect , the outer panel of the front pillar that covers the outer side of the front pillar lower portion in the vehicle width direction, the steering hanger support bracket, and the hinge A side sill cover part formed integrally with a side outer panel covering the outside in the vehicle width direction of the cabin is sandwiched between the base and the door checker mounting seat and tightened with the bolt, and the upper and lower walls of the cabin side sill An automobile body structure characterized by being fixed to a wall by adhesion is proposed.

According to a third aspect of the present invention, in addition to the configuration of the first or second aspect , the one door hinge is a lower door hinge, and the lower door hinge is connected to the front end of the side sill. A vehicle body structure is proposed which is provided near the lower end of the part.

  The steering hanger support bracket 41 of the embodiment corresponds to the door mounting portion of the present invention.

  According to the configuration of the first aspect, the front end of the door is pivotally supported via the upper door hinge and the lower door hinge at the door mounting portion of the automobile cabin. The hinge base of one of the upper door hinge and the lower door hinge is fixed to the outer surface in the vehicle width direction of the door mounting portion, and the door checker mounting seat that extends the hinge base inward in the vehicle width direction is fixed to the rear surface of the door mounting portion. Since the door checker is supported by the checker mounting seat, not only can the space for installing the door checker be secured even for a door with a small vertical height, but the integrated hinge base and door checker mounting seat mutually reinforce each other. The support rigidity of the door is increased.

The door mounting part is a steering hanger support bracket that supports the steering hanger. Since the hinge base and the door checker mounting seat are fastened to the steering hanger support bracket with bolts, the existing steering hanger support bracket is also used as the door mounting part. In addition to reducing the number of parts, the mounting strength of the hinge base and the door checker mounting seat can be increased. In addition, since the steering hanger support bracket is fixed to the rear surface of the front pillar lower portion of the cabin, the door can be supported on the front pillar lower portion.

According to the second aspect of the present invention, the outer panel of the front pillar covering the outer side in the vehicle width direction of the front pillar lower portion is sandwiched between the steering hanger support bracket, the hinge base and the door checker mounting seat, and is shared by the bolt. Since the outer panel is firmly fixed without the need for a special fastening member, the side sill cover part integrally formed on the side outer panel covering the outside in the vehicle width direction of the cabin is provided with the upper and lower sides of the cabin side sill. Since it is fixed to the wall by adhesion, the vehicle body rigidity can be increased by integrating the side sill and the side outer panel.

According to the configuration of claim 3, the one door hinge is a lower door hinge, and the lower door hinge is provided in the vicinity of the lower end of the front pillar lower portion connected to the front end of the side sill. Therefore, the front end of the side sill and the front pillar lower portion The lower end connection can be reinforced with a lower door hinge.

The perspective view of the vehicle body of a motor vehicle. 2 direction view of FIG. FIG. 3 is a sectional view taken along line 3-3 in FIG. 2. FIG. 4 is a sectional view taken along line 4-4 of FIG. FIG. 5 is an enlarged view of part 5 of FIG. 1.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS. In the present specification, the front-rear direction, the left-right direction (vehicle width direction), and the up-down direction are defined with reference to an occupant seated in the driver's seat.

  As shown in FIGS. 1 and 2, an automobile cabin 11 formed in a bathtub shape with CFRP (carbon fiber reinforced resin) includes a pair of left and right side sills 14 and 14 extending in the front-rear direction along both sides in the vehicle width direction. A pair of left and right rear frames 15, 15 connected to the rear ends of the left and right side sills 14, 14, and a rear end cross member 16 connecting the rear ends of the left and right rear frames 15, 15 in the vehicle width direction are provided. The left and right side sills 14, 14 are connected by a front floor panel 18 having a center tunnel 17 extending in the front-rear direction at the center in the vehicle width direction, and the left and right rear frames 15, 15 and the rear end cross member 16 are connected by a rear floor panel 19. .

  The rear frames 15 and 15 are linearly formed rearward from the rear ends of the pair of left and right kick-up portions 15a and 15a that bend inward and upward in the vehicle width direction from the rear ends of the side sills 14 and 14. And a pair of left and right side portions 20a, 20a of a roll bar 20 formed in an inverted U shape with CFRP pipe material on the upper surfaces of the left and right kick-up portions 15a, 15a. The lower end is supported. A pair of left and right roll bar support bars 21 and 21 made of CFRP pipe material extend rearward and downward from both ends in the vehicle width direction of the upper portion 20b of the roll bar 20, and the lower ends of the left and right roll bar support bars 21 and 21 are It is supported on the upper surfaces of the horizontal portions 15b, 15b of the left and right rear frames 15, 15.

  The CFRP roof panel 23 covering the front floor panel 18 is an H-shaped member in which a pair of left and right sunroof openings 23a, 23a are cut out, and the front portion thereof is a pair of left and right CFRP front panels. While being supported by the upper ends of the pillars 31, 31, the rear part is fixed to the upper part 20 b of the roll bar 20. The front pillar 31 is a member having a closed cross section in which the outer panel 32 and the inner panel 33 are coupled, and the lower end thereof is connected to the rear surface of the front pillar lower portion 29 (see FIG. 4) standing from the front end of the side sill 14. The tail gate panel 24 made of CFRP disposed behind the roof panel 23 has an opening 24a into which a rear window glass is fitted at the center, and the front portion is superimposed on the upper surface of the rear end of the roof panel 23. Supported.

  A CFRP side outer panel 25 that covers both left and right sides of the cabin 11 includes a side sill cover portion 25a that is adhered so as to cover the side sill 14, a rear fender portion 25b that covers the outer side in the vehicle width direction of a rear wheel (not shown), and a side sill. A rear quarter panel portion 25c connected to the rear of the cover portion 25a and the rear fender portion 25b. The upper end of the rear quarter panel portion 25c is overlapped and bonded to the rear end portion of the roof panel 23 in the vehicle width direction. . The outer surface in the vehicle width direction of the rear frame 15 and the inner surface in the vehicle width direction of the side outer panel 25 are connected by a rear fender inner panel 27 that is a CFRP plate member.

  As shown in FIG. 3, the side sill 14 and the front floor panel 18 are formed hollow by joining the outer skin 12 and the inner skin 13 with joint flanges 12 a and 13 a, and a corrugated core is formed inside the front floor panel 18. A material 34 is arranged, and a reinforcing member 35 made of a pipe material having a triangular cross section is arranged at the boundary between the side sill 14 and the front floor panel 18.

  The side sill cover portion 25a of the side outer panel 25 is formed in a C-shaped cross section so as to cover the upper wall 14a, the vehicle width direction outer wall 14b, and the lower wall 14c of the side sill 14. The inner end in the vehicle width direction of the upper surface of the side sill cover portion 25a is bonded to the upper wall 14a of the side sill 14 via the upper bracket 36 having a crank-shaped cross section, and the lower surface of the side sill cover portion 25a is attached to the lower bracket 37 having a crank-shaped cross section. It is bonded to the lower wall 14c of the side sill 14. At this time, the support member 38 extending in the front-rear direction is disposed between the upper wall 14a of the side sill 14 and the upper surface of the side sill cover portion 25a.

  A CFRP door is formed in a door opening defined by the side sill cover portion 25a, the front pillar 31, the outer edge in the vehicle width direction of the roof panel 23, and the front edge (that is, the rear pillar) of the rear quarter panel portion 25c of the side outer panel 25. 39 is arranged to be openable and closable.

  As shown in FIGS. 4 and 5, both ends of a steering hanger 30 (see FIG. 5) made of a metal pipe extending in the vehicle width direction are supported on the rear surfaces of the pair of left and right front pillar lower portions 29, 29 of the cabin 11. A metal steering hanger support bracket 41 is fixed. The door 39 includes a door outer panel 42 and a door inner panel 43, and a hinge stiffener 44 is superimposed on the rear side of the door inner panel 43 constituting the front surface of the door 39. A lower door hinge 45 is provided between the vehicle width direction outer surface 41a of the steering hanger support bracket 41 and the front surface of the door 39, and cooperates with the upper door hinge 46 provided on the vehicle width direction outer surface 41a of the steering hanger support bracket 41. As a result, the front portion of the door 39 is pivotally supported on the rear surface of the front pillar 31.

  The lower door hinge 45 includes a hinge base 52 fixed to the outer surface 41 a in the vehicle width direction of the steering hanger support bracket 41 with a bolt 51, a fixed-side hinge arm 53 protruding outward from the hinge base 52 in the vehicle width direction, and the front surface of the door 39. And a hinge pin 57 that connects the fixed-side hinge arm 53 and the movable-side hinge arm 56 to each other.

  The door checker 58 that connects the rear surface 41b of the steering hanger support bracket 41 and the front surface of the door 39 includes a door checker mounting seat 59 in which the rear end of the hinge base 52 of the lower door hinge 45 is folded inward in the vehicle width direction. The door checker mounting seat 59 is fixed to the rear surface 41 a of the steering hanger support bracket 41 with a bolt 60.

  The door checker 58 further includes a bracket 61 integrated with the door checker mounting seat 59, a check plate 63 pivotally supported on the bracket 61 by a pin 62, a stopper 64 provided at the rear end of the check plate 63, and a door 39 It includes a guide member 65 that is fixed to the hinge stiffener 44 and through which the check plate 63 is slidably slidable. The door 39 can be opened and closed by a frictional force generated when the check plate 63 and the guide member 65 move relative to each other. While giving a sense of moderation, the maximum opening position of the door 39 is regulated by the stopper 64 coming into contact with the guide member 65.

  The upper door hinge 46 includes a hinge base 67 fixed to the outer surface 41 a in the vehicle width direction of the steering hanger support bracket 41 with a bolt 66, a fixed-side hinge arm 68 protruding outward from the hinge base 67 in the vehicle width direction, and the front surface of the door 39. The hinge base 70 is fixed to the hinge base 70 by a bolt 69, the movable side hinge arm 71 projects forward from the hinge base 70, and the hinge pin 72 that connects the fixed side hinge arm 68 and the movable side hinge arm 71.

  Next, the operation of the embodiment of the present invention having the above configuration will be described.

  The CFRP cabin 11 has a larger cross-sectional area of the side sill 14 due to strength requirements than the steel plate cabin, so that the position of the upper wall 14a of the side sill 14 is increased and the height of the door 39 is reduced. Become. When the height of the door 39 is reduced, it is difficult to secure a space for attaching the upper door hinge 46, the lower door hinge 45, and the door checker 58 to the front surface of the door 39.

  However, according to the present embodiment, the door checker mounting seat 59 in which the hinge base 52 of the lower door hinge 45 is fixed to the outer surface 41a in the vehicle width direction of the steering hanger support bracket 41 and the hinge base 52 is extended inward in the vehicle width direction. Since the door hanger 58 is fixed to the rear surface 41b of the steering hanger support bracket 41 and the door checker mounting seat 59 supports the door checker 58, not only can the space for providing the door checker 58 be secured even for the door 39 having a small vertical height. The integrated hinge base 52 and door checker mounting seat 59 reinforce each other, and the support rigidity of the door 39 is increased.

  Further, since the hinge base 52 and the door checker mounting seat 59 are fixed to the steering hanger support bracket 41, the number of parts can be reduced by using the existing steering hanger support bracket 41, and the hinge base 52 and the door checker mounting seat 59 can be reduced. The mounting strength can be increased. Moreover, since the steering hanger support bracket 41 is fixed to the rear surface of the front pillar lower portion 29 of the cabin 11, an upper door hinge 46 and a lower door hinge 45 are provided on the front pillar lower portion 29 suitable for pivotally supporting the front surface of the door 39. Can do.

  In addition, the outer panel 32 of the front pillar 31 that covers the outer side of the front pillar lower portion 29 in the vehicle width direction is sandwiched between the steering hanger support bracket 41, the hinge base 52, and the door checker mounting seat 59, and is shared by bolts 51 and 60. Since it tightens (refer FIG. 4), the outer panel 32 of the front pillar 31 can be firmly fixed, without requiring a special fastening member.

  Since the side sill cover portion 25a formed integrally with the side outer panel 25 covering the vehicle width direction of the cabin 11 is fixed to the upper wall 14a and the lower wall 14c of the side sill 14 of the cabin 11 by adhesion (see FIG. 3), the side sill 14 and The side outer panel 25 can be integrated to increase the rigidity of the vehicle body.

  Since the lower door hinge 45 is provided in the vicinity of the lower end of the front pillar lower portion 29 connected to the front end of the side sill 14 (see FIG. 5), the connection portion between the front end of the side sill 14 and the lower end of the front pillar lower portion 29 is connected to the lower door hinge 45. Can be reinforced.

  The embodiments of the present invention have been described above, but various design changes can be made without departing from the scope of the present invention.

For example, although the cabin 11 of the embodiment is made of CFRP, the cabin of the present invention is not necessarily made of CFRP, and may be made of metal .

  In the embodiment, the door checker mounting seat 59 of the door checker 58 is integrally provided on the hinge base 52 of the lower door hinge 45, but the door checker 58 of the door checker 58 is mounted on the hinge base 67 (see FIG. 5) of the upper hinge 46. The seat 59 may be provided integrally.

  Further, the side outer panel 25 is not necessarily made of CFRP, and may be made of metal.

11 cabin 14 side sill 14a upper wall 14c lower wall 25 side outer panel 25a side sill cover part 29 front pillar lower part 30 steering hanger 31 front pillar 32 outer panel 39 door 41 steering hanger support bracket (door attachment part)
45 Lower door hinge 46 Upper door hinge 51 Bolt 52 Hinge base 58 Door checker 59 Door checker mounting seat 60 Bolt

Claims (3)

A vehicle body structure of an automobile in which a front end of a door (39) is pivotally supported via an upper door hinge (46) and a lower door hinge (45) on a door attachment part (41) of an automobile cabin (11), the door attachment part (41) is a steering hanger support bracket (41) for supporting the steering hanger (30), and the hinge base (52) of one of the upper door hinge (46) and the lower door hinge (45) is used as the steering hanger. The door checker mounting seat (59), which is fastened to the outer surface (41a) in the vehicle width direction of the support bracket (41) with a bolt (51) and extends the hinge base (52) inward in the vehicle width direction, is attached to the steering hanger support bracket ( the surface (41b) after 41) fastened with bolts (60), the door checker mounting seat (59) Supporting the door checker (58), a vehicle body structure for an automobile, characterized in that the rear surface of the front pillar lower portion (29) of the fixed steering hanger support bracket (41) of the cabin (11). Before SL front pillar lower portion of the outer panel (32) of the front pillar covering the outside in the vehicle width direction (29) (31), wherein a steering hanger support bracket (41), the hinge base (52) and the door checker attached A side sill cover portion (25a) formed integrally with a side outer panel (25) covering the outside in the vehicle width direction of the cabin (11) while being fastened together with the bolts (51, 60) sandwiched between the seat (59). The vehicle body structure according to claim 1 , wherein the vehicle body structure is fixed to the upper wall (14 a) and the lower wall (14 c) of the side sill (14) of the cabin (11) by adhesion. Before SL one door hinge is lower door hinge (45), said lower door hinge (45) and which are located near the lower end of the side sill the front pillar lower portion connected to the front end (14) (29), The vehicle body structure according to claim 1 or 2 .

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