JP6451384B2 - Vehicle door structure - Google Patents

Description

  The present invention relates to a vehicle door structure including a sliding door that opens and closes a door opening provided on a side surface of the vehicle.

  A sliding door of a vehicle such as an automobile opens and closes a door opening by, for example, rollers arranged at the front upper portion and the front lower portion sliding in the vehicle front-rear direction along rails provided on the side surface of the vehicle. On the other hand, the sliding door is not held by the vehicle body at the rear upper portion and the rear lower portion.

  For this reason, in a vehicle equipped with a sliding door, the rear upper part and the rear lower part of the sliding door are in the case of an internal collision in which an occupant or luggage in the passenger compartment collides with the sliding door from the passenger compartment toward the outer side of the vehicle. There is a possibility of displacement outside the vehicle. When the slide door is displaced outward, a gap is generated between the slide door and the vehicle body.

  Patent Document 1 describes a slide door structure in which an interference member is disposed on the upper rear side of the slide door, and a regulating member is disposed on a vehicle body member (C pillar). The restricting member is in a position corresponding to the interference member in the closed state of the slide door. In Patent Document 1, even if the rear side of the sliding door is removed during an internal collision, the interference member and the regulating member are engaged to prevent the sliding door from being displaced outward.

JP 2010-215087 A

  However, in the sliding door structure of Patent Document 1, the interference member and the regulating member are engaged with each other at the time of an internal collision, and the sliding door may be difficult to open. In such a case, it was necessary to remove or destroy the interference member and the regulating member in an emergency where the sliding door is opened and the occupant is rescued.

  Further, a door latch is attached to the slide door at the rear end portion of the door inner panel constituting the inner surface thereof. The door latch is a member that engages with a striker provided on a pillar serving as an edge on the rear side of the door opening, and keeps the sliding door closed.

  The door latch receives vibrations during traveling of the vehicle and a load associated with the opening / closing operation of the sliding door. When such vibrations and loads are repeatedly input, the door latch and the door inner panel may be peeled off, or cracks or deformation may occur at the door latch mounting location. As a countermeasure against this, it is conceivable to add a bracket to the door latch mounting location to increase the mounting rigidity of the door latch with respect to the door inner panel.

  However, as an adverse effect of adding the bracket, there is a possibility that local deformation of the door inner panel at the time of internal collision may be hindered. When the local deformation of the door inner panel is hindered, the impact at the time of the internal collision that was originally absorbed by the deformation of the door inner panel is not absorbed, and the impact occurs from the entire door inner panel, that is, from the upper part to the lower part. There is a possibility that a gap may be generated between the upper and lower portions of the door inner panel and the pillar.

  In view of the above problems, the present invention provides a vehicle door structure capable of preventing a gap from being generated between an upper portion and a lower portion of a door inner panel and a pillar at the time of an internal collision while increasing the mounting rigidity of the door latch. The purpose is that.

  In order to solve the above problems, a typical structure of a vehicle door structure according to the present invention is a vehicle door structure provided with a slide door that opens and closes a door opening provided on a side surface of the vehicle. Further, the pillar that extends in the vertical direction of the vehicle and serves as the rear edge of the door opening, and the rear end of the door inner panel that constitutes the inner surface of the sliding door, is a pillar vehicle when the sliding door is closed. The door latch that is attached to the rear end that overlaps the outside and engages with the striker provided on the pillar to keep the sliding door closed, and the door latch and the door inner panel are connected to the front part of the vehicle from the rear end. And a bracket bent toward the vehicle width direction outer side or the vehicle width direction inner side.

  The door latch receives vibrations when the vehicle travels and loads associated with the sliding door opening / closing operation. When such vibrations and loads are repeatedly input, the door latch and the door inner panel may be peeled off, or cracks or deformation may occur at the door latch mounting location. Therefore, in the present invention, a bracket connecting the door latch and the door inner panel is added. According to the said structure, the attachment rigidity with respect to the door inner panel of a door latch can be improved with a bracket.

  However, when such a high-stiffness bracket is attached to the door inner panel, at the time of an internal collision in which a load is input to the door inner panel from the interior of the vehicle toward the outside of the vehicle, the locally permitted door inner panel is locally Are difficult to tolerate. Since the rear end portion of the door inner panel overlaps with the pillar when the slide door is closed, it is protected by the pillar even if it receives an internal collision, and is not originally deformed. However, a portion of the door inner panel that is ahead of the vehicle from the rear end portion is expected to be deformed when receiving an internal collision. By attaching a bracket serving as a back shield to the part, local deformation may be inhibited as described above. When local deformation is hindered, the impact at the time of internal collision that was originally absorbed by the deformation is not absorbed, and the impact is transmitted from the entire inner door panel, that is, from the upper part to the lower part, and the upper part of the door inner panel. In addition, a gap may be generated between the lower portion and the pillar.

  Therefore, in the present invention, the bracket is bent toward the outside in the vehicle width direction. For this reason, the bracket has a gap with the door inner panel, and local deformation of the door inner panel is allowed in this gap. Furthermore, the bracket can be deformed starting from the bent portion. Even when the bracket is bent toward the inner side in the vehicle width direction, the bracket can be deformed starting from the bent portion.

  Therefore, according to the above configuration, while increasing the mounting rigidity of the door latch, it also ensures local deformation of the door inner panel, which may be difficult to be tolerated thereby, and the upper and lower portions of the door inner panel at the time of an internal collision It is possible to prevent a gap from being generated between the pillars.

  The bracket is formed with a fold line along with the bending, and the fold line may extend in parallel to the parting line between the pillar and the door inner panel as viewed from the vehicle width direction. Thereby, the bracket is easily deformed outward in the vehicle width direction along a fold line parallel to a parting line between the pillar and the door inner panel when receiving a load at the time of an internal collision. Therefore, the local deformation | transformation of the door inner panel by an internal collision can be accept | permitted more reliably.

  The bracket may include a main body that connects the door latch and the door inner panel, and a flange that protrudes outward in the vehicle width direction or inward in the vehicle width direction from both upper and lower edges of the bent portion of the main body. Thereby, the rigidity of the bracket is enhanced by the flanges along the upper and lower edges of the main body. Since the door latch and the door inner panel are connected by such a bracket, the attachment rigidity of the door latch to the door inner panel can be further increased. Further, when a load is received at the time of an internal collision, the flanges projecting outward in the vehicle width direction from both edges of the bracket body are deformed so as to open to the vehicle upper side and the vehicle lower side, respectively. For this reason, the main body of a bracket deform | transforms to the vehicle width direction outer side, and, thereby, local deformation | transformation of the door inner panel by an internal collision can fully be accept | permitted. Even when the flange protrudes inward in the vehicle width direction from both edges of the bracket main body, the bracket main body can be deformed outward in the vehicle width direction during an internal collision.

  Said bracket is good to be located below the window frame lower end formed in the door inner panel. Here, since the area | region located below a window frame lower end among the door inner panels has overlapped with the position of the vehicle seat, for example seeing from the vehicle width direction, there is a high possibility of receiving an impact due to an internal collision. Therefore, the bracket located in the above-described region is reliably deformed outward in the vehicle width direction upon receiving an impact at the time of an internal collision, thereby allowing local deformation of the door inner panel.

  ADVANTAGE OF THE INVENTION According to this invention, the door structure for vehicles which can prevent that a clearance gap produces between the upper part and lower part of a door inner panel and a pillar at the time of an internal collision can be provided, improving the attachment rigidity of a door latch.

It is a figure which shows the door structure for vehicles in the 1st Embodiment of this invention. It is a figure which shows the A area | region of the vehicle door structure of FIG. It is a figure which expands and shows a part of vehicle door structure of FIG. It is a figure which shows the state which looked at a part of vehicle door structure of FIG. 2 from the vehicle interior side. It is a figure which shows the door structure for vehicles in the 2nd Embodiment of this invention.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The dimensions, materials, and other specific numerical values shown in the embodiments are merely examples for facilitating understanding of the invention, and do not limit the present invention unless otherwise specified. In the present specification and drawings, elements having substantially the same function and configuration are denoted by the same reference numerals, and redundant description is omitted, and elements not directly related to the present invention are not illustrated. To do.

  FIG. 1 is a view showing a vehicle door structure 100 according to a first embodiment of the present invention. In the drawing, the vehicle side surface 102 on the left side of the vehicle is viewed from the outside of the vehicle. Hereinafter, the arrow X shown in each figure indicates the front of the vehicle, and the arrow Y indicates the outside of the vehicle.

  The vehicle door structure 100 includes a slide door 104. The slide door 104 is supported by a slide mechanism (not shown) so as to be slidable in the vehicle front-rear direction with respect to the vehicle side surface 102. The slide door 104 slides along, for example, a slide door rail 106 disposed on the vehicle side surface 102 and opens and closes a door opening 108 provided on the vehicle side surface 102. The vehicle side surface 102 is provided with a pillar (C pillar 110) that is an edge on the rear side of the door opening 108 and extends in the vehicle vertical direction. Further, a door latch 112 that keeps the slide door 104 in a closed state is provided inside the slide door 104 (see FIG. 2).

  FIG. 2 is a view showing a region A of the vehicle door structure 100 of FIG. However, in the drawing, the door outer panel 114 constituting the outer surface of the slide door 104 shown in FIG. 1 is omitted. As shown in FIG. 2, the door latch 112 is attached to the rear end portion 118 of the door inner panel 116 that constitutes the inner surface of the slide door 104. The rear end portion 118 of the door inner panel 116 overlaps the outside of the C pillar 110 when the slide door 104 is closed.

  Here, the door latch 112 receives vibrations when the vehicle travels and a load associated with the opening / closing operation of the slide door 104. When such vibrations and loads are repeatedly input, the door latch 112 and the door inner panel 116 may be peeled off, or cracks or deformation may occur at the attachment location of the door latch 112. Therefore, in the present embodiment, a bracket 120 that connects the door latch 112 and the door inner panel 116 is added, thereby increasing the attachment rigidity of the door latch 112 to the door inner panel 116.

  As shown in FIG. 2, the bracket 120 is a long member having a width in the vehicle vertical direction and extending in the vehicle front-rear direction, and connects the door latch 112 and the portion 122 of the door inner panel 116. The portion 122 of the door inner panel 116 is positioned in front of the vehicle with respect to the rear end portion 118 of the door inner panel 116 to which the door latch 112 is attached, and does not overlap the C pillar 110 when the slide door 104 is closed.

  Further, the bracket 120 is set at a position below the lower end 124 of the window frame formed on the door inner panel 116 as shown in the figure and overlapping with a vehicle seat (not shown) when viewed from the vehicle width direction. The bracket 120 set in such a position is moved toward the outside of the vehicle from the vehicle interior to the slide door 104 at the time of an internal collision, that is, an occupant seated on the vehicle seat or a luggage placed on the vehicle seat collides with the vehicle. When a collision occurs, there is a high possibility of receiving a load from the passenger compartment toward the outside of the vehicle.

  However, simply using a member having high rigidity such as a bracket may serve as a back shield for the portion 122 of the door inner panel 116 at the time of an internal collision and may hinder local deformation of the door inner panel 116. If local deformation of the door inner panel 116 is hindered, if there is no bracket, the impact at the time of an internal collision that should be absorbed by the deformation of the door inner panel 116 is not absorbed.

  In this case, the impact at the time of the internal collision is transmitted from the entire door inner panel 116, that is, from the upper part to the lower part, and there is a possibility that a gap is generated between the upper and lower parts of the door inner panel 116 and the C pillar 110. . If a gap is generated at the time of an internal collision, various members are deformed and engaged with each other due to an impact at the time of the internal collision, and the slide door 104 is difficult to open. As a result, it is necessary to remove or destroy various members in an emergency such as opening the slide door 104 to rescue the occupant.

  Therefore, in the present embodiment, the bracket 120 is used to increase the mounting rigidity of the door latch 112, and a configuration is employed in which a gap is prevented from being generated between the upper and lower portions of the door inner panel 116 and the C pillar 110 during an internal collision. .

  FIG. 3 is an enlarged view showing a part of the vehicle door structure 100 of FIG. In the drawing, a cross section of the C pillar 110 located on the vehicle inner side than the door latch 112 in the closed state of the slide door 104 is also shown. FIG. 4 is a diagram showing a state in which a part of the vehicle door structure 100 of FIG. 2 is viewed from the vehicle interior side. In FIG. 4, the members constituting the C pillar 110 are shown in an overlapping manner.

  As shown in FIG. 3, the door latch 112 is attached via a base plate 128 to an attachment portion of the rear end portion 118 of the door inner panel 116 where the latch reinforcement 126 is attached. The door latch 112 is engaged with a striker (not shown) provided in the C pillar 110 to keep the slide door 104 in a closed state.

  As shown in the cross section of FIG. 3, the C pillar 110 includes a body inner panel 130 located on the vehicle interior side, and a body outer panel 132 that constitutes an outer surface of the vehicle side surface 102. A quarter-inner brace 134 and a quarter-inner force 136 are disposed therebetween.

  As shown in FIG. 3, the body outer panel 132 and the quarter inner force 136 extend in the vehicle width direction in a state where they are overlapped with each other, and are further bent toward the front side of the vehicle. In accordance with this shape, in the sliding door 104, the rear end portion 118 of the door inner panel 116, the latch reinforcement 126, and the base plate 128 are overlapped at the mounting position of the door latch 112, and further bent in the vehicle width direction. Has the shape.

  The base plate 128 that is a part of the door latch 112 is further extended to the front side of the vehicle, and the bracket 120 is joined to the front end 138 thereof. The bracket 120 is further fastened to the portion 122 of the door inner panel 116 with, for example, a bolt 140 and a nut 142, but is not limited thereto, and may be joined by welding.

  As shown in FIG. 3, the bracket 120 has a main body 144 that connects the door latch 112 and a portion 122 of the door inner panel 116. The main body 144 of the bracket 120 is bent toward the outer side in the vehicle width direction, and fold lines 146a and 146b are formed along with the bending. A bent portion of the main body 144 is referred to as a bent portion 147. The broken lines 146a and 146b formed in the bent portion 147 extend in parallel to the parting line 148 (see FIG. 4) between the C pillar 110 and the door inner panel 116 when viewed from the vehicle width direction. For this reason, the bracket 120 is easily deformed outward in the vehicle width direction along the broken lines 146a and 146b parallel to the parting line 148 between the C pillar 110 and the door inner panel 116 when receiving a load at the time of the internal collision.

  The bracket 120 further includes flanges 150a and 150b projecting outward from the upper and lower edges of the bent portion 147 of the main body 144 in the vehicle width direction, thereby increasing the rigidity. Since the door latch 112 and the door inner panel 116 are connected by such a bracket 120, the attachment rigidity of the door latch 112 to the door inner panel 116 can be further increased.

  Further, when receiving a load at the time of an internal collision, the flanges 150a and 150b projecting outward from both edges of the bent portion 147 of the main body 144 of the bracket 120 to the vehicle width direction are deformed so as to open to the vehicle upper side and the vehicle lower side, respectively. To do. Therefore, the main body 144 of the bracket 120 is deformed outward in the vehicle width direction, and thereby, it is possible to sufficiently allow local deformation of the door inner panel 116 due to an internal collision.

  Thus, in the vehicle door structure 100, the rear end portion 118 and the door latch 112 of the door inner panel 116 overlap with the C pillar 110 when the slide door 104 is closed. Is not deformed. On the other hand, the bracket 120 is fastened to a portion 122 of the door inner panel 116 that does not overlap the C pillar 110 and serves as a back shield of the portion 122 at the time of internal collision, but the main body 144 bends outward in the vehicle width direction. ing. For this reason, the bracket 120 has a gap between the door inner panel 116 and the door inner panel 116 is allowed to be locally deformed in the gap. Further, the main body 144 of the bracket 120 can be deformed starting from the bent portion.

  That is, according to the present embodiment, by using the bracket 120, the mounting rigidity of the door latch 112 is increased, and the local deformation of the door inner panel 116 that may be difficult to be tolerated thereby is ensured. Therefore, according to this embodiment, it is possible to prevent a gap from being generated between the upper and lower portions of the door inner panel 116 and the C pillar 110 at the time of an internal collision while increasing the mounting rigidity of the door latch 112.

  FIG. 5 is a diagram showing a vehicle door structure 100A according to the second embodiment of the present invention. The vehicle door structure 100A is different from the vehicle door structure 100 according to the first embodiment in that the bent portion 147A of the main body 144A of the bracket 120A is bent inward in the vehicle width direction.

  The main body 144A of the bracket 120A connects the door latch 112 and the portion 122 of the door inner panel 116 as shown in FIG. As shown in the drawing, bending lines 146c and 146d are formed in the bent portion 147A of the main body 144A. The broken lines 146c and 146d extend parallel to the parting line 148 (see FIG. 4) when viewed from the vehicle width direction, similarly to the broken lines 146a and 146b formed in the bent portion 147 of the bracket 120.

  For this reason, the bracket 120A is easily deformed outward in the vehicle width direction along the broken lines 146c and 146d parallel to the parting line 148 when receiving a load at the time of internal collision. That is, the bracket 120A can be deformed starting from the bent portion 147A that is bent inward in the vehicle width direction, and can allow local deformation of the door inner panel 116.

  The bracket 120A further includes flanges 150c and 150d projecting outward in the vehicle width direction from both upper and lower edges of the bent portion 147A of the main body 144A, thereby increasing rigidity. Further, when receiving a load at the time of an internal collision, the flanges 150c and 150d are deformed so as to open to the vehicle upper side and the vehicle lower side, respectively.

  Therefore, according to the present embodiment, by using the bracket 120A, it is possible to prevent a gap from being generated between the upper and lower portions of the door inner panel 116 and the C pillar 110 at the time of an internal collision while increasing the mounting rigidity of the door latch 112. it can.

  In each of the above embodiments, the flanges 150a, 150b, 150c, and 150d of the brackets 120 and 120A are projected outward from the upper and lower edges of the bent portions 147 and 147A of the main bodies 144 and 144A. It is not limited to. That is, if local deformation of the door inner panel 116 at the time of the internal collision can be allowed, as an example, the flanges 150a, 150b, 150c, and 150d are arranged at the vehicle width from the upper and lower edges of the bent portions 147 and 147A of the main body 144. You may overhang in the direction.

  As mentioned above, although preferred embodiment of this invention was described referring an accompanying drawing, it cannot be overemphasized that this invention is not limited to the example which concerns. It will be apparent to those skilled in the art that various changes and modifications can be made within the scope of the claims, and these are naturally within the technical scope of the present invention. Understood.

  INDUSTRIAL APPLICABILITY The present invention can be used for a vehicle door structure including a slide door that opens and closes a door opening provided on a side surface of the vehicle.

DESCRIPTION OF SYMBOLS 100, 100A ... Vehicle door structure, 102 ... Vehicle side surface, 104 ... Sliding door, 106 ... Slide door rail, 108 ... Door opening, 110 ... C pillar, 112 ... Door latch, 114 ... Door outer panel, 116 ... Door inner panel, 118: Rear end of door inner panel, 120, 120A ... Bracket, 122 ... Site, 124 ... Lower end of window frame, 126 ... Latch reinforcement, 128 ... Base plate, 130 ... Body inner panel, 132 ... Body outer panel, 134 ... Quarter Inner brace, 136 ... Quarter inner force, 138 ... Front end of base plate, 140 ... Bolt, 142 ... Nut, 144, 144A ... Main body, 146a, 146b, 146c, 146d ... Polyline, 147, 147A ... Bending part, 148 ... Parting off Line, 15 a, 150b, 150c, 150d ... flange

Claims (4)

In a vehicle door structure including a slide door that opens and closes a door opening provided on a side surface of the vehicle,
The vehicle door structure further includes
A pillar extending in the vertical direction of the vehicle and serving as a rear edge of the door opening;
A rear end portion of a door inner panel constituting the inner surface of the slide door, which is attached to a rear end portion that overlaps the outside of the pillar when the slide door is closed, and engages with a striker provided on the pillar. A door latch that keeps the sliding door closed,
A vehicle door, comprising: a bracket that connects the door latch and a portion of the door inner panel that is in front of the vehicle relative to the door latch and that is bent outward in the vehicle width direction or inward in the vehicle width direction. Construction. The bracket is formed with a fold line with bending,
2. The vehicle door structure according to claim 1, wherein the broken line extends parallel to a parting line between the pillar and the door inner panel as viewed from the vehicle width direction.   The bracket includes a main body connecting the door latch and the door inner panel, and a flange projecting outward in the vehicle width direction or in the vehicle width direction from both upper and lower edges of the main body. The vehicle door structure according to 1 or 2. The vehicle door structure according to any one of claims 1 to 3, wherein the bracket is positioned below a lower end of a window frame formed on the door inner panel.

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