JP2014008840A - Sliding door structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sliding door structure that suppresses a connection thereof from being highly strained resulting from deformation of a lower hinge reinforcement and an inner panel.SOLUTION: A sliding door structure 10 comprises: a sliding door 14 for opening and closing a vehicle door opening; and a lower hinge reinforcement 50 that is fixed to a door inner panel 30 at bottom in the sliding door 14 and supports a lower hinge attached to the door inner panel 30. The lower hinge reinforcement 50 comprises: a plate-like longitudinal wall 50A arranged in a vehicle width direction as a thickness direction; a folded part 50B whose longitudinal face is shaped nearly crank-like by folding the upper portion of the front side, in the vehicle longitudinal direction, of the longitudinal wall part 50A outward in the vehicle width direction. In the lower hinge reinforcement 50 is a front flange 50C that is folded outward and formed in the vehicle width direction at a front end of the folded part 50B and connected to the front side, in the vehicle longitudinal direction, of the longitudinal wall part 50A and whose upper portion is connected to the door inner panel.

Description

  The present invention relates to a sliding door structure.

  In Patent Document 1 below, a door opening formed on a side surface of a vehicle body is connected to a lower hinge provided at a lower portion of the slide door as a slide door that opens and closes along a vehicle front-rear direction. A structure in which a pair of link arms is attached is disclosed.

JP 2007-145118 A JP 2008-013142 A

Japan Society of Invention and Innovation Technical Bulletin No. 2011-504669

  In the structure described in Patent Document 1, when the sliding door is opened, the lower hinge and the inner panel to which the lower hinge is fixed are deformed as a result of input to the lower hinge in the vehicle longitudinal direction and the vehicle vertical direction. As a result, the joint may become highly strained.

  An object of the present invention is to obtain a sliding door structure that can prevent the lower hinge reinforcement and the inner panel from being deformed and the joint portion from becoming highly distorted in consideration of the above facts.

  The slide door structure according to the invention of claim 1 is provided at a slide door body that opens and closes by sliding a door opening provided on a side surface of the vehicle body along the vehicle front-rear direction, and at a lower portion inside the slide door body, A lower hinge reinforcement that is fixed to an inner panel disposed inside the sliding door body in the vehicle width direction and supports a lower hinge attached to the inner panel, and a lower hinge reinforcement formed in the vehicle width direction. A plate-shaped general portion arranged in the vertical direction and the lower hinge reinforcement are formed, and the upper portion of the general portion on the front side in the vehicle front-rear direction is bent outward in the vehicle width direction so that the longitudinal sectional shape is substantially crank-shaped. Outside the vehicle width direction at the vehicle front-rear direction front end of the bent portion and the bent portion in the lower hinge reinforcement Together they are formed by bending the, is connected to the vehicle front side of the general portion, having a front flange at least the upper is joined to the inner panel side.

  According to a second aspect of the present invention, in the sliding door structure according to the first aspect of the present invention, the lower door is provided with another reinforcement disposed closer to the inner panel than the lower hinge reinforcement, and the thickness of the inner panel is the lower hinge reinforcement. In addition, an opening is formed in the front flange portion of the lower hinge reinforcement, and the other reinforcement and the inner panel are joined in the opening.

  According to a third aspect of the present invention, in the sliding door structure according to the second aspect, a flange portion extending in a vehicle vertical direction between the inner panel and the front flange portion is provided at a front end portion of the other reinforcement. Is provided.

  According to a fourth aspect of the present invention, in the slide door structure according to any one of the first to third aspects, the slide door main body includes an outer panel disposed on the outer side in the vehicle width direction of the inner panel, An end portion of the inner panel and an end portion of the outer panel are coupled by hemming, and a notch is formed at a lower portion of the front flange portion in the vehicle vertical direction, and the upper portion of the inner panel is higher than the front flange portion. On the side, an insertion port into which a nozzle for wax application is inserted is formed.

  According to a fifth aspect of the present invention, in the sliding door structure according to any one of the first to fourth aspects, a mounting hole is formed in an intermediate portion in the vehicle vertical direction of the front flange portion, and the vehicle body and the A touch sensor for detecting a foreign object sandwiched between the slide door body and the inner wall of the inner panel is fixed by a fixture within the mounting hole.

  According to the first aspect of the present invention, the door opening provided on the side surface of the vehicle body is opened and closed by sliding the slide door body along the longitudinal direction of the vehicle. A lower hinge reinforcement that is fixed to the inner panel is provided at a lower portion inside the slide door main body, and the lower hinge attached to the inner panel is supported by the lower hinge reinforcement. The lower hinge reinforcement has a plate-shaped general part that is arranged with the vehicle width direction as the thickness direction, and the upper part of the front part of the general part in the vehicle front-rear direction is bent outward in the vehicle width direction so that the longitudinal cross-sectional shape is substantially crank-shaped And a bent portion. Further, the lower hinge reinforcement has a front flange portion that is bent at the vehicle front-rear direction front end portion of the bent portion and is bent outward in the vehicle width direction, and has a front flange portion that is connected to the vehicle front side of the general portion. The upper part of the flange part is joined to the inner panel side. In this sliding door structure, the upper part of the front part in the vehicle front-rear direction of the general part of the lower hinge reinforcement is bent outward in the vehicle width direction to form a bent part having a substantially crank-shaped cross section. The rigidity of the hinge reinforcement in the longitudinal direction of the vehicle is increased. Thereby, even when an input in the vehicle front-rear direction acts on the lower hinge when the slide door body is opened, the deformation of the lower hinge reinforcement is suppressed.

  Further, the lower hinge reinforcement is formed by being bent outward in the vehicle width direction at the front end in the vehicle front-rear direction of the bent portion, and is formed with a front flange portion connected to the vehicle front side of the general portion. Reinforces the rigidity in the vertical direction of the vehicle. As a result, even when an input in the vehicle vertical direction acts on the lower hinge when the slide door body is opened, the deformation of the lower hinge reinforcement is suppressed. For this reason, it is suppressed that a lower hinge reinforcement and an inner panel deform | transform, and it becomes suppressed that the junction part of a lower hinge reinforcement and an inner panel becomes high distortion.

  According to the second aspect of the present invention, another reinforcement is disposed closer to the inner panel than the lower hinge reinforcement, and the thickness of the inner panel is set to be thinner than the thickness of the lower hinge reinforcement and the other reinforcement. ing. An opening is formed in the front flange portion of the lower hinge reinforcement, and another reinforcement and the inner panel are joined in this opening. For example, when three sheets of an inner panel, another reinforcement and a lower hinge reinforcement are joined by welding or the like, the inner panel may be deformed at these joints. This is because other reinforcements and lower hinge reinforcements are less likely to move with respect to the inner panel, and the so-called noisy effect is reduced with respect to the joint portion of the inner panel. On the other hand, by joining the two other reinforcements and the inner panel by welding or the like, the other reinforcements and the inner panel can move relative to the lower hinge reinforcement. For this reason, a deformation | transformation of an inner panel can be suppressed by what is called a noisy effect.

  According to the third aspect of the present invention, the front end portion of the other reinforcement is provided with the flange portion extending in the vehicle vertical direction between the inner panel and the front flange portion. Increases vertical rigidity. As a result, when the sliding door main body is opened, even if an input in the vehicle vertical direction acts on the lower hinge, deformation of other reinforcements is suppressed. For this reason, deformation of the lower hinge reinforcement, other reinforcements, and the inner panel is more effectively suppressed.

  According to the fourth aspect of the present invention, the slide door main body includes the outer panel disposed on the outer side in the vehicle width direction of the inner panel, and the end of the inner panel and the end of the outer panel are coupled by hemming. . In addition, a notch is formed in the lower part of the front flange portion of the lower hinge reinforcement in the vehicle vertical direction, and a nozzle for wax application is inserted from an insertion port formed above the front flange portion of the inner panel. . Thereby, even when the front flange portion is provided in the lower hinge reinforcement, the tip of the wax coating nozzle can be inserted to the notch portion of the lower hinge reinforcement. For this reason, it is possible to apply wax to the hemmed portions of the inner panel and the outer panel.

  According to the fifth aspect of the present invention, the mounting hole is formed in the vehicle vertical direction middle portion of the front flange portion of the lower hinge reinforcement, and the touch sensor is fixed to the wall portion of the inner panel within the mounting hole by the fixture. Has been. For this reason, when fixing a touch sensor to the wall part of an inner panel with a fixture, it can prevent that a fixture and a lower hinge reinforcement interfere by an attachment hole.

  According to the slide door structure of the present invention, it is possible to prevent the lower hinge reinforcement and the inner panel from being deformed and the joint portion from being highly distorted.

1 is a perspective view showing a vehicle body to which a sliding door structure according to an embodiment is applied. It is a perspective view which shows the open state of the slide door provided in the vehicle body shown in FIG. It is the perspective view which looked at the slide door used for the slide door structure concerning one embodiment from the vehicle inside. FIG. 4 is a plan view showing a configuration in the vicinity of a lower hinge, a lower roller, and a lower roller guide for sliding the slide door shown in FIG. 3 along the side surface of the vehicle body. FIG. 4 is a perspective view of the sliding door shown in FIG. 3 as viewed from the outside of the vehicle with the outer panel omitted. It is an expansion perspective view which shows the structure of the lower hinge reinforcement used for the slide door shown in FIG. 5, and the 2nd reinforcement vicinity. It is a perspective view which shows the structure of the lower hinge vicinity attached to the slide door shown in FIG. It is a perspective view which shows the nozzle for wax application inserted from the insertion port formed in the inner panel of the slide door shown in FIG. 5, and the notch part vicinity of a lower hinge reinforcement. It is sectional drawing which shows the structure of the touch sensor attached to the sliding door shown in FIG. 5, and lower hinge reinforcement vicinity. FIG. 7 is an enlarged perspective view corresponding to FIG. 6 showing a state in which the sliding door is deformed by applying an input to the lower hinge when the sliding door is opened. It is a perspective view which shows the cross-sectional position for illustrating the state before and after a deformation | transformation of a slide door. (A) is sectional drawing which shows the state before a deformation | transformation of the sliding door along the 12Y-12Y line in FIG. 11, (B) is a deformation | transformation of the sliding door along the 12Y-12Y line in FIG. It is sectional drawing which exaggerated and showed the latter state. It is an expansion perspective view which shows the structure of the lower hinge reinforcement used for the slide door of a comparative example, and the 2nd reinforcement vicinity. FIG. 14 is a perspective view showing a state in which the lower hinge is deformed by applying downward input to the lower hinge when the sliding door shown in FIG. 13 is opened. It is a perspective view which shows the load which acts on the fastening surface of an inner panel when a downward input is added to a lower hinge when the sliding door shown in FIG. 13 is opened. (A) is sectional drawing which shows the state before a deformation | transformation of the sliding door along the 16Y-16Y line in FIG. 15, (B) is a deformation | transformation of the sliding door along the 16Y-16Y line in FIG. It is sectional drawing which exaggerated and showed the latter state. FIG. 14 is an enlarged perspective view showing a state in which the sliding door is deformed by applying a downward input to the lower hinge when the sliding door shown in FIG. 13 is opened.

  Hereinafter, a sliding door structure according to an embodiment of the present invention will be described with reference to FIGS. In these drawings, an arrow FR appropriately shown indicates the vehicle rear side, an arrow UP indicates the vehicle upper side, and an arrow IN indicates the vehicle width direction inner side. An arrow RR indicates the vehicle rear side.

  FIG. 1 is a perspective view of a vehicle body to which the slide door structure 10 of the present embodiment is applied, and FIG. 2 is a perspective view of an open state of the slide door provided on the vehicle body. Has been. As shown in FIGS. 1 and 2, a vehicle body (vehicle body) 12 to which the sliding door structure 10 is applied is a sliding door 14 as a sliding door body that is slid in the vehicle front-rear direction along the side surface 12 </ b> A of the vehicle body 12. It has. The slide door 14 is a so-called front seat slide door that allows an occupant to get on a front seat such as a passenger seat by opening and closing a door opening 16 provided on the side surface 12A of the vehicle body 12.

  As shown in FIG. 2, the vehicle body 12 includes a rocker 18 that extends on the side of the vehicle 12 in the longitudinal direction of the vehicle, and a front pillar 20 that extends upward from the end of the rocker 18 on the vehicle front side. And. Further, the vehicle body 12 has a roof side rail 22 extending from the vehicle upper side end of the front pillar 20 to the vehicle rear side, and a vehicle rear side end of the roof side rail 22 to the vehicle lower side. And a rear pillar 24 having a lower end connected to the rear end of the rocker 18. The door opening 16 of the vehicle body 12 is provided in a range surrounded by the rocker 18, the front pillar 20, the roof side rail 22, and the rear pillar 24, and has a substantially rectangular shape when viewed from the side of the vehicle. The vehicle body 12 is configured such that the outside of the vehicle communicates with the inside of the passenger compartment 26 through the door opening 16 by opening the slide door 14 (sliding in the opening direction).

  As shown in FIGS. 3 to 5, the slide door 14 includes a door inner panel (inner panel) 30 disposed on the inner side in the vehicle width direction, and a door outer panel disposed on the outer side in the vehicle width direction of the door inner panel 30. The (outer panel) 32 is configured as a main element (see FIG. 7). As shown in FIGS. 3 and 4, a lower hinge 34 is attached to a lower portion of the door inner panel 30 on the vehicle front side on the vehicle width direction inner side of the slide door 14. The lower hinge 34 includes a side surface portion 34A and a lateral wall portion 34B that are bent in a substantially L shape when viewed from the front of the vehicle. The door inner panel 30 includes a wall surface 30A that is disposed on the inner side in the vehicle width direction and extends in the vehicle up-down direction and the vehicle front-rear direction, and the side surface portion 34A of the lower hinge 34 is fixed to the wall surface 30A of the door inner panel 30. (See FIG. 7). A bracket 36 is attached to the tip of the lateral wall portion 34B of the lower hinge 34, and a base portion 40 provided with a lower roller 38 is rotatably connected to the bracket 36 (see FIG. 4). The lower hinge 34 connects the vehicle body 12 and the slide door 14 via a bracket 36 so that the slide door 14 can be opened and closed.

  On the lower side of the door opening 16 in the vehicle body 12, an elongated lower roller guide 42 (see FIG. 4) is provided substantially along the vehicle longitudinal direction. The lower roller guide 42 is formed so as to be curved so that the rear end portion is disposed on the outer side in the vehicle width direction than the front end portion. As the lower roller 38 moves in the lower roller guide 42 on the vehicle body 12 side, the slide door 14 slides substantially along the vehicle longitudinal direction. A fully open stopper (not shown) is provided on the rear side of the door opening 16 in the vehicle body 12 so that the slide door 14 is locked in the fully open position by hitting the fully open stopper when the slide door 14 is fully opened. It has become.

  As shown in FIGS. 4, 7 and 12A, the door inner panel 30 and the door outer panel 32 are plate-like press-molded parts extending in the vehicle front-rear direction and the vehicle width direction. A flange-shaped end portion 30B is formed on the outer periphery of the door inner panel 30, and the end portion 32A of the door outer panel 32 is folded and joined to the end portion 30B by hemming.

  FIG. 6 is a perspective view of the lower portion of the slide door 14 on the front side of the vehicle with the door outer panel 32 (see FIG. 4) omitted (see FIG. 5). As shown in FIG. 5 and FIG. 6, a lower hinge reinforcement 50 that reinforces the door inner panel 30 and a second reinforcement (others) are provided inside the slide door 14 (between the door inner panel 30 and the door outer panel 32). Reinforce) 52 is provided. The second reinforcement 52 is disposed closer to the door inner panel 30 than the lower hinge reinforcement 50, and the fastening portion of the lower hinge 34 to the door inner panel 30 is further reinforced by providing the second reinforcement 52. On the vehicle outer side of the lower hinge reinforcement 50, there is provided a plate-like retainer 54 that is formed in a substantially triangular shape when viewed from the side of the vehicle and has an outer peripheral flange. An impact beam 94 (see FIG. 5) extending substantially along the vehicle front-rear direction is fixed to the door inner panel 30 inside the slide door 14.

  As shown in FIGS. 6 and 7, the vehicle inner side in the vehicle width direction of the door inner panel 30 through the lower hinge reinforcement 50 and the second reinforcement 52 in the vicinity of the three corners of the retainer 54 formed in a substantially triangular shape. A side surface portion 34A of the lower hinge 34 disposed in the position is fixed by a fastener. More specifically, in FIGS. 6 and 7, the lower hinge 34 is provided at three locations, that is, an upper fastening portion 66A on the front side of the vehicle, a lower fastening portion 66B on the front side of the vehicle, and a lower fastening portion 66C on the rear side of the vehicle. Side surface portion 34A is fixed to the door inner panel 30 side. The side portion 34A of the lower hinge 34 is supported by the second reinforcement 52, the lower hinge reinforcement 50, and the retainer 54 via the door inner panel 30, and the fastening portion of the lower hinge 34 is reinforced.

  The door inner panel 30 has a front wall portion 30D as a wall portion that is bent outward from the front end portion of the wall surface 30A (see FIG. 7), and a lower portion that is bent outward from the lower end portion of the wall surface 30A in the vehicle width direction. Wall part 30E (refer FIG. 6). As shown in FIG. 6, the lower hinge reinforcement 50 has a vertical wall portion 50A as a plate-like general portion arranged with the vehicle width direction as a thickness direction, and an upper portion of the vertical wall portion 50A on the front side in the vehicle front-rear direction. A bent portion 50B that is bent outward in the vehicle width direction and has a substantially crank-like longitudinal cross-sectional shape. In the present embodiment, the bent portion 50B is substantially vehicle-mounted from an oblique wall in which the upper portion of the vertical wall portion 50A is bent outward in the vehicle width direction and an end portion of the wall in the vehicle width direction outside in the vehicle front view. And a vertical wall bent upward (see FIG. 12A). Further, in the bent portion 50B, an outer end portion in the vehicle width direction of a wall in which an upper portion of the vertical wall portion 50A is bent outward in the vehicle width direction is directed from the vehicle rear side to the vehicle front side in plan view (vehicle top view). Accordingly, it is configured to extend outward in the vehicle width direction.

  Further, the lower hinge reinforcement 50 is formed by being bent outward in the vehicle width direction at the front end of the bent portion 50B in the vehicle longitudinal direction, and includes a front flange portion 50C connected to the vehicle front side of the vertical wall portion 50A. . In other words, the front flange portion 50C extends outward in the vehicle width direction from the front end portion of the bent portion 50B and the front end portion of the vertical wall portion 50A, and extends in the vehicle vertical direction. The front flange portion 50 </ b> C is disposed along the front wall portion 30 </ b> D of the door inner panel 30.

  The second reinforcement 52 is disposed along the door inner panel 30, and the lower side of the second reinforcement 52 in the vehicle vertical direction is disposed at a position substantially overlapping the lower hinge reinforcement 50 in the vehicle width direction. The upper part 52A of the second reinforcement 52 extends above the vehicle from the lower hinge reinforcement 50 (see FIG. 5). A front end portion of the second reinforcement 52 is provided with a flange portion 52B (see FIG. 6) bent outward in the vehicle width direction. The flange portion 52B extends along the vehicle vertical direction (connected in the vehicle vertical direction), and is disposed between the front wall portion 30D of the door inner panel 30 and the front flange portion 50C of the lower hinge reinforcement 50. Yes.

  The plate thickness of the door inner panel 30 is set to be thinner than the plate thicknesses of the lower hinge reinforcement 50 and the second reinforcement 52. Note that the thickness of the lower hinge reinforcement 50 and the second reinforcement 52 may be either thick or both may be the same. However, in the present embodiment, the thickness of the second reinforcement 52 is the thickness of the lower hinge reinforcement 50. It is set thicker.

  The upper end portion of the front flange portion 50C of the lower hinge reinforcement 50 is joined to the flange portion 52B of the second reinforcement 52 by spot welding or the like indicated by a hit point 56A. In the present embodiment, the front flange portion 50C and the flange portion 52B are joined by the hit point 56A (two-sheet hit point), and are not joined to the front wall portion 30D of the door inner panel 30.

  The intermediate portion in the vertical direction of the front flange portion 50C of the lower hinge reinforcement 50 is joined to the flange portion 52B of the second reinforcement 52 by spot welding or the like indicated by a hit point 56B. In the present embodiment, the front flange portion 50C and the flange portion 52B are joined by the hitting point 56B (two hitting points), and are not joined to the front wall portion 30D of the door inner panel 30.

  In the front flange portion 50C of the lower hinge reinforcement 50, two openings 58 are formed between the hit point 56A and the hit point 56B and on the vehicle lower side of the hit point 56B. Within these openings 58, the flange portion 52B of the second reinforcement 52 and the front wall portion 30D of the door inner panel 30 are joined by spot welding or the like shown at the hit points 59A and 59B. In the present embodiment, the opening 58 has a circular shape. However, if the flange portion 52B of the second reinforcement 52 and the front wall portion 30D of the door inner panel 30 can be welded, the opening 58 may be changed to another shape. Good.

In the present embodiment, at the time of assembly, the lower hinge reinforcement 50 and the second reinforcement 52 are first joined. In the process, the front flange portion 50C of the lower hinge reinforcement 50 and the flange portion 52B of the second reinforcement 52 are joined by spot welding or the like indicated by the hit points 56A and 56B.
Thereafter, the second reinforcement 52 and the door inner panel 30 are joined. In the process, the flange portion 52B of the second reinforcement 52 and the front wall portion 30D of the door inner panel 30 are joined within the opening 58 of the lower hinge reinforcement 50 by spot welding or the like shown at the hit points 59A and 59B. As a result, the second reinforcement 52 and the lower hinge reinforcement 50 are attached to the door inner panel 30.

  In addition, a notch 60 is formed in the lower hinge reinforcement 50 at a lower portion in the vehicle vertical direction of the front flange portion 50C by notching an approximately L shape between the vertical wall portion (general portion) 50A. The notch 60 of the lower hinge reinforcement 50 is disposed so as to face the vicinity of the corner 30F at the lower end of the door inner panel 30 in front of the vehicle.

  As shown in FIG. 8, an insertion port 62 into which the wax coating nozzle 90 is inserted is formed above the front flange portion 50 </ b> C of the lower hinge reinforcement 50 in the door inner panel 30. Since the notch 60 is provided in the front flange 50C of the lower hinge reinforcement 50, the tip 90A of the nozzle 90 for wax application inserted from the insertion port 62 of the front flange 50C is the position of the notch 60. Until it is inserted. As a result, the wax for rust prevention is applied to the end portion 32A of the door outer panel 32 and the hemmed portion in the vicinity of the corner portion 30F at the lower end of the door inner panel 30.

  Furthermore, a mounting hole 64 is formed between the hit point 56B and the opening 58 on the lower side of the front flange portion 50C of the lower hinge reinforcement 50 in the middle portion in the vehicle vertical direction. As shown in FIG. 9, the attachment hole 64 is a hole for attaching the touch sensor 70 for detecting the foreign object sandwiched between the slide door 14 and the vehicle body 12 to the front wall portion 30 </ b> D of the door inner panel 30. is there. In addition, a mounting hole 68 is formed in the flange portion 52 </ b> B of the second reinforcement 52 in accordance with the position of the mounting hole 64. In this embodiment, the attachment hole 64 and the attachment hole 68 are formed in a substantially circular shape, but may be changed to other shapes. A touch sensor 70 is disposed on the front side of the front wall portion 30D of the door inner panel 30 along the vehicle vertical direction. Then, the clip 72 as the attachment tool is fitted to the touch sensor 70 from the second reinforcement 52 side in the attachment hole 64 and the attachment hole 68, so that the touch sensor 70 is attached to the front wall portion 30 </ b> D of the door inner panel 30. It is fixed. As a result, when the slide door 14 is slid in the closing direction, the touch sensor 70 detects the trapping of foreign matter between the slide door 14 and the vehicle body 12.

  Next, the operation and effect of the sliding door structure 10 of this embodiment will be described.

  As shown in FIG. 2, the door opening 16 of the vehicle body 12 is opened by sliding the slide door 14 toward the vehicle rear side (opening direction). When the slide door 14 is slid in the opening direction, the slide door 14 hits a fully open stopper (not shown) provided on the rear side of the door opening 16 of the vehicle body 12 and the slide door 14 is locked. At that time, as shown in FIG. 3, an input in the vehicle longitudinal direction (input to the vehicle front side) A and an input in the vehicle vertical direction (input to the vehicle lower side) B are applied to the lower hinge 34.

  As shown in FIG. 6, the lower hinge reinforcement 50 has a vertical wall portion (general portion) 50 </ b> A that is bent in such a manner that the upper part of the front side in the vehicle front-rear direction is bent outward in the vehicle width direction and the vertical cross-sectional shape is substantially crank-shaped. Part 50B is formed. Thereby, the rigidity of the lower hinge reinforcement 50 with respect to the input A to the vehicle front side can be increased.

  The lower hinge reinforcement 50 is formed with a front flange portion 50C that is bent at the vehicle front-rear direction front end portion of the bent portion 50B and is connected to the vehicle front side of the vertical wall portion 50A. ing. The front flange portion 50 </ b> C is disposed along the front wall portion 30 </ b> D of the door inner panel 30. Thereby, the rigidity of the lower hinge reinforcement 50 with respect to the input B to the vehicle lower side can be increased.

  For this reason, as shown in FIG. 10, when the input A to the vehicle front side and the input B to the vehicle lower side act on the lower hinge 34 (see FIG. 3), the deformation of the lower hinge reinforcement 50 is suppressed. it can. That is, in the absence of the front flange portion 50C, when an input B to the lower side of the vehicle acts on the lower hinge 34 (see FIG. 3), the upper and lower portions of the lower hinge reinforcement in the vehicle vertical direction are substantially outward in the vehicle width direction. Easily deformed into an L shape. In the present embodiment, by providing the front flange portion 50C, it is possible to suppress the lower hinge reinforcement 50 from being deformed into a substantially L shape around the boundary between the vertical wall portion 50A and the bent portion 50B. Further, by suppressing the deformation of the lower hinge reinforcement 50, the deformation of the door inner panel 30 can be suppressed.

  Here, before describing the operation of the sliding door structure 10 of the present embodiment in more detail, the sliding door structure 100 of the comparative example will be described with reference to FIGS. 13 to 17.

  As shown in FIG. 13, in the sliding door structure 100 of the comparative example, instead of the lower hinge reinforcement 50 and the second reinforcement 52 (see FIG. 6) of the sliding door structure 10 of the present embodiment, the lower hinge reinforcement 102 and the first reinforcement Two reinforces 104 are provided. The lower hinge reinforcement 102 has a vertical wall portion 50A as a plate-like general portion arranged with the vehicle width direction as a thickness direction, and an upper portion of the vertical wall portion 50A on the front side in the vehicle front-rear direction is bent outward in the vehicle width direction. A bent portion 50B having a substantially crank-like longitudinal cross-sectional shape. Further, the lower hinge reinforcement 102 includes a bent portion 102A that is bent outward in the vehicle width direction from the front end portion of the vertical wall portion 50A in the vehicle vertical direction intermediate portion. The bent portion 102A has a shape protruding in a substantially U shape when viewed from the rear of the vehicle. The lower hinge reinforcement 102 is not provided with the front flange portion 50C (see FIG. 6) in the lower hinge reinforcement 50 of the present embodiment.

  The second reinforcement 104 includes a vertical wall portion 104A disposed along the vehicle vertical direction, and an upper front wall portion 104B disposed on the outer side in the vehicle width direction from the front end portion of the vertical wall portion 104A. Furthermore, the second reinforcement 104 includes a lower front wall portion 104C disposed on the outer side in the vehicle width direction from the front end portion of the vertical wall portion 104A on the lower side of the upper front wall portion 104B.

  The front end portion of the bent portion 50B of the lower hinge reinforcement 102 is joined to the second reinforcement 104 and the front wall portion 30D of the door inner panel 30 by spot welding or the like indicated by a hit point 106A (three hit points). Further, the bent portion 102A of the lower hinge reinforcement 102 is joined to the front wall portion 30D of the door inner panel 30 by spot welding or the like indicated by a hit point 106B. The upper front wall portion 104B and the lower front wall portion 104C of the second reinforcement 104 are joined to the front wall portion 30D of the door inner panel 30 by spot welding or the like indicated by the hit points 106C and 106D, respectively.

  Further, the side surface portion 34A of the lower hinge 34 is fixed to the door inner panel 30, the second reinforcement 104, the lower hinge reinforcement 102, and the retainer 54 by three fastening portions 112A, 112B, and 112C (see FIG. 14).

  In the sliding door structure 100 of the comparative example, the lower hinge reinforcement 102 is provided with a bent portion 50B in which the upper portion of the vertical wall portion 50A on the front side in the vehicle front-rear direction is bent outward in the vehicle width direction and the vertical sectional shape is substantially crank-shaped. ing. Thereby, the rigidity of the lower hinge reinforcement 50 with respect to the input A (refer FIG. 3) to the vehicle front side increases. For this reason, even when the input A to the front side of the vehicle acts on the lower hinge 34 when the slide door 110 is slid in the opening direction, the bending of the lower hinge reinforcement 102 can be suppressed by the bent portion 50B.

  On the other hand, as shown in FIG. 14, when the slide door 110 is slid in the opening direction and the input B to the lower side of the vehicle acts on the lower hinge 34, the lower hinge 34 is easily deformed downward. As a result, as shown in FIG. 15, a load (arrow C) on the vehicle inner side acts on the upper fastening portion 112 </ b> A where the lower hinge 34 is fastened and fixed to the wall surface 30 </ b> A of the door inner panel 30. At the same time, a load (arrow D) to the outside of the vehicle acts on the lower fastening portion 112B where the lower hinge 34 is fastened and fixed to the wall surface 30A of the door inner panel 30.

  FIG. 16A is a sectional view showing the state before the fastening surfaces of the lower hinge 34 and the door inner panel 30 of the slide door 110 are deformed. FIG. 16B is a cross-sectional view showing a state after the fastening surfaces of the lower hinge 34 and the door inner panel 30 in the slide door 110 are deformed. FIG. 16B exaggerates the deformation state in order to make the configuration and operation of the sliding door structure 100 of the comparative example easier to understand. In FIGS. 16A and 16B, a fastener for fastening and fixing the lower hinge 34 and the door inner panel 30 is omitted.

  As shown in FIG. 16 (B), the side surface portion 34A of the lower hinge 34 is rotated around the axis in the vehicle front-rear direction by applying a load on the vehicle inner side (arrow C) and a load on the vehicle outer side (arrow D). Deforms to rotate. In accordance with the deformation of the side surface portion 34A of the lower hinge 34, as shown in FIG. 17, the lower hinge reinforcement 102 disposed on the fastening surface of the lower hinge 34 is an R portion at the boundary between the vertical wall portion 50A and the bent portion 50B. 120 makes it easier to bend. For this reason, the lower hinge reinforcement 102 is bent in a substantially L shape around the R portion 120 at the boundary between the vertical wall portion 50A and the bent portion 50B (see the dotted line 122 in FIG. 17).

  Further, as shown in FIG. 17, due to the deformation of the lower hinge reinforcement 102, the peripheral edge portion (the portion indicated by the arrow 124) of the door inner panel 30 is deformed in the compressed direction as indicated by arrows E and F. By deforming the peripheral portion of the door inner panel 30 (the portion indicated by the arrow 124) in a compressing direction, the striking surface of the door inner panel 30 is deformed, and the front wall portion 30D of the door inner panel 30 and the second reinforcement 104 are deformed. There is a possibility that the hitting point 106D joining the upper front wall portion 104B becomes highly strained.

  On the other hand, in the sliding door structure 10 of the present embodiment, the bent portion 50B of the lower hinge reinforcement 50 is formed at the front end in the vehicle front-rear direction by being bent outward in the vehicle width direction, and the vehicle front side of the vertical wall portion 50A. A front flange portion 50C connected to is formed. Thus, as shown in FIG. 10, when the input B to the vehicle lower side acts on the lower hinge 34 (see FIG. 3), the bending deformation of the lower hinge reinforcement 50 can be suppressed. That is, compared to the deformed state indicated by the dotted line 122 of the lower hinge reinforcement 102 in the sliding door structure 100 of the comparative example, the lower hinge reinforcement 50 is substantially L-shaped around the boundary between the vertical wall portion 50A and the bent portion 50B. Deformation can be suppressed. Moreover, the deformation | transformation amount of the peripheral part (part shown by the arrow 31) of the door inner panel 30 can also be reduced because the deformation | transformation of the lower hinge reinforcement 50 is suppressed.

  FIG. 12A shows a sectional view of the slide door 14 before deformation along the line 12Y-12Y in FIG. 11, and FIG. 12B shows 12Y in FIG. The state after deformation of the slide door 14 along the line -12Y is shown in a sectional view. FIG. 12B exaggerates the deformation state in order to make the configuration and operation of the sliding door structure 10 of this embodiment easier to understand. In FIGS. 12A and 12B, a fastener for fastening and fixing the lower hinge 34 and the door inner panel 30 is omitted. As shown in FIG. 12B, in the sliding door structure 10 of the present embodiment, the deformation of the lower hinge reinforcement 50 compared to the deformation state indicated by the dotted line 126 of the lower hinge reinforcement 102 in the sliding door structure 100 of the comparative example. The amount can be reduced. Further, since the deformation amount of the lower hinge reinforcement 50 is reduced, the deformation amount of the door inner panel 30 can also be reduced.

  That is, in the sliding door structure 10 of the present embodiment, by providing the front flange portion 50C at the front end portion of the lower hinge reinforcement 50, when a load in the vehicle vertical direction acts on the lower hinge 34, the load is applied by the front flange portion 50C. Can communicate. For this reason, compared with the deformation | transformation state of the lower hinge reinforcement 102 in the sliding door structure 100 of a comparative example, a deformation | transformation of front wall part 30D of the door inner panel 30 can be suppressed. Thereby, it is possible to suppress the hitting point 59B joining the front wall portion 30D of the door inner panel 30 and the flange portion 52B of the second reinforcement 52 from being highly distorted.

  In the sliding door structure 10 of the present embodiment, the plate thickness of the door inner panel 30 is set to be thinner than the plate thicknesses of the lower hinge reinforcement 50 and the second reinforcement 52. As shown in FIG. 6, two openings 58 are formed in the front flange portion 50 </ b> C of the lower hinge reinforcement 50. And in these openings 58, the flange part 52B of the 2nd reinforcement 52 and the front wall part 30D of the door inner panel 30 are joined by the spot welding etc. which are shown to the hit points 59A and 59B.

  For example, when three door inner panels, the second reinforcement, and the lower hinge reinforcement are joined by welding, the door inner panel may be deformed at these joints. In other words, when the plate thickness of the second reinforcement and the lower hinge reinforcement is thicker than the plate thickness of the door inner panel, the second reinforcement and the lower hinge reinforcement are difficult to move with respect to the hit point of the door inner panel in the three-weld welding. For this reason, a so-called no effect is reduced with respect to the hitting point of the door inner panel, and the door inner panel is easily deformed at these joint portions.

  On the other hand, in the present embodiment, two pieces of the flange portion 52B of the second reinforcement 52 and the front wall portion 30D of the door inner panel 30 are joined by spot welding or the like shown at the hit points 59A and 59B. As a result, the second reinforcement 52 and the door inner panel 30 can move relatively easily with respect to the lower hinge reinforcement 50, and deformation of the door inner panel 30 can be suppressed due to a so-called noisy effect.

  Further, a flange portion 52 </ b> B connected in the vehicle vertical direction between the front wall portion 30 </ b> D of the door inner panel 30 and the front flange portion 50 </ b> C of the lower hinge reinforcement 50 is provided at the front end portion of the second reinforcement 52. As a result, the rigidity of the second reinforcement 52 in the vertical direction of the vehicle is increased, and when the sliding door 14 is slid in the opening direction, the deformation of the second reinforcement 52 even if the input B to the vehicle lower side acts on the lower hinge 34. Is suppressed. For this reason, it can suppress more effectively that the lower hinge reinforcement 50, the 2nd reinforcement 52, and the door inner panel 30 deform | transform.

  Further, a notch 60 is formed at the lower part of the front flange 50C of the lower hinge reinforcement 50 in the vehicle vertical direction. As shown in FIG. 8, an insertion port 62 is formed above the front flange portion 50 </ b> C of the door inner panel 30, and a wax application nozzle 90 is inserted from the insertion port 62. Accordingly, the tip 90 </ b> A of the wax application nozzle 90 can be inserted up to the cutout portion 60 of the lower hinge reinforcement 50. For this reason, even when the lower flange reinforcement 50 is provided with the front flange portion 50 </ b> C, the wax can be applied to the hemmed portions of the end portion 30 </ b> B of the door inner panel 30 and the end portion 32 </ b> A of the door outer panel 32.

  Further, as shown in FIG. 9, a mounting hole 64 is formed in an intermediate portion in the vehicle vertical direction of the front flange portion 50 </ b> C of the lower hinge reinforcement 50, and the touch sensor 70 is installed in the mounting hole 64 of the door inner panel 30. The clip 72 is fixed to the front wall portion 30D. For this reason, when the touch sensor 70 is fixed to the front wall portion 30 </ b> D of the door inner panel 30 with the clip 72, it is possible to prevent the clip 72 and the lower hinge reinforcement 50 from interfering with each other due to the attachment hole 64.

  In this embodiment, the upper end portion of the front flange portion 50C of the lower hinge reinforcement 50 and the flange portion 52B of the second reinforcement 52 are joined by spot welding or the like indicated by the hit point 56A, but this is not limitative. Is not to be done. Instead of the two-sheet hitting point, three of the front flange portion 50C, the flange portion 52B, and the front wall portion 30D of the door inner panel 30 may be joined by welding.

  Further, the bending angle of the bent portion 50B whose longitudinal cross-sectional shape is substantially a crank shape is not limited to the present embodiment, and can be changed. For example, the bent portion includes a substantially horizontal wall in which the upper part of the vertical wall portion 50A is bent outward in the vehicle width direction and a vehicle upper side from the end of the wall in the vehicle width direction or A configuration may be provided that includes a vertical wall that is bent obliquely upward of the vehicle.

  In the present embodiment, the front end portion of the second reinforcement 52 is provided with a flange portion 52B connected in the vehicle vertical direction between the door inner panel 30 and the front flange portion 50C. However, the present invention is not limited to this. It is not something. The shape of the flange portion 52B does not necessarily have to be connected in the vehicle vertical direction and can be changed.

  Moreover, although the plate | board thickness of the door inner panel 30 is set thinner than the plate | board thickness of the lower hinge reinforcement 50 and the 2nd reinforcement 52, it does not limit to this and plate | board thickness is changeable.

  Further, a circular insertion port 62 into which the wax coating nozzle 90 is inserted is formed above the front flange portion 50C of the door inner panel 30, but the position and shape of the insertion port 62 can be changed. is there.

  In addition, a circular mounting hole 64 for mounting the touch sensor 70 is formed in the vehicle vertical direction intermediate portion of the front flange portion 50C of the lower hinge reinforcement 50, but the position and shape of the mounting hole 64 can be changed. It is.

  Further, the sliding door structure of the present invention is not limited to the front seat sliding door of the present embodiment, and can be applied to other sliding doors. For example, when a plurality of side doors are provided on the side surface of the vehicle body, the sliding door structure of the present invention can be applied to a rear seat sliding door.

10 Sliding door structure 12 Car body 12A Side surface 14 Sliding door (sliding door body)
16 Door opening 30 Door inner panel (inner panel)
30B end part 30D front wall part (wall part)
32 Door outer panel (outer panel)
32A End 34 Lower Hinge 50 Lower Hinge Reinforce 50A Vertical Wall (General)
50B Bending part 50C Front flange part 52 2nd reinforcement (other reinforcements)
52B Flange part 56A Riding point (Doting point joined by welding)
56B Dots (Dots joined by welding)
58 Opening 59A Dot (Dots joined by welding)
59B Dots (Dots joined by welding)
60 Notch 62 Insertion Port 64 Mounting Hole 70 Touch Sensor 72 Clip (Mounting Tool)
90 Nozzle 90A tip

Claims (5)

A sliding door body that opens and closes by sliding a door opening provided on a side surface of the vehicle body along the longitudinal direction of the vehicle;
A lower hinge reinforcement that is provided at a lower portion inside the slide door body, is fixed to an inner panel disposed on the inner side in the vehicle width direction of the slide door body, and supports a lower hinge attached to the inner panel;
A plate-like general portion formed in the lower hinge reinforcement and arranged with the vehicle width direction as the thickness direction;
A bent portion formed in the lower hinge reinforcement, wherein the upper portion of the general portion on the front side in the vehicle front-rear direction is bent outward in the vehicle width direction, and the longitudinal sectional shape is substantially crank-shaped;
In the lower hinge reinforcement, the bent portion is formed by being bent outward in the vehicle width direction at the front end in the vehicle longitudinal direction, connected to the vehicle front side of the general portion, and at least the upper portion is joined to the inner panel side. Front flange,
A sliding door structure. With other reinforcements arranged on the inner panel side than the lower hinge reinforcements,
The thickness of the inner panel is set to be thinner than the thickness of the lower hinge reinforcement and the other reinforcement,
The sliding door structure according to claim 1, wherein an opening is formed in the front flange portion of the lower hinge reinforcement, and the other reinforcement and the inner panel are joined in the opening.   The sliding door structure according to claim 2, wherein a flange portion extending in a vehicle vertical direction is provided between the inner panel and the front flange portion at a front end portion of the other reinforcement. The slide door body includes an outer panel disposed on the outer side in the vehicle width direction of the inner panel, and an end portion of the inner panel and an end portion of the outer panel are coupled by hemming processing,
A notch is formed in the lower portion of the front flange portion in the vehicle vertical direction,
The sliding door structure according to any one of claims 1 to 3, wherein an insertion port into which a wax coating nozzle is inserted is formed above the front flange portion of the inner panel. A mounting hole is formed in an intermediate portion in the vehicle vertical direction of the front flange portion,
The touch sensor for detecting the foreign object pinching between the said vehicle body and the said slide door main body is being fixed to the wall part of the said inner panel by the fixture in the said attachment hole. The sliding door structure according to any one of the above.

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