JP2013006437A - Vehicle door structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle door structure capable of widely securing a vehicle interior.SOLUTION: A frame member (door inner 18) is arranged at a vehicle interior inner side of a door outer panel (rear glass 16). An inner joining piece 26N and an outer joining piece 26G provided at the frame member are joined to the door outer panel. At least a portion of the joining piece is located inside a door inner width 18W.

Description

  The present invention relates to a vehicle door structure.

  As a vehicle door structure applied to an automobile, Patent Document 1 describes a structure in which a door inner is joined to a back door ballast. The door inner side portion extends along the longitudinal direction of the back door side portion and opens to the outside in the vehicle width direction, and extends from the outer edge of the body portion in the vehicle width direction along the outer periphery of the door. 1 flange part and the 2nd flange part extended from the edge inside the vehicle width direction of a main-body part, and following the outline of the opening part are provided.

  However, in the structure of Patent Document 1, the first flange portion and the second flange portion are extended outward as seen in the cross section in the width direction. That is, since the first flange portion and the second flange portion are in a position protruding in the width direction with respect to the door glass, the space in the vehicle interior is narrowed by the door inner and the flange portion.

JP 2010-260519 A

  In view of the above facts, an object of the present invention is to obtain a vehicle door structure that can secure a wide vehicle interior.

  In the first aspect of the present invention, a door outer panel constituting a door of the vehicle, and an orthogonal cross section that extends along the door outer panel on the vehicle interior side of the door outer panel and is orthogonal to the extending direction. A skeleton member that forms a closed cross section with the door outer when viewed, and the skeleton member is positioned at least partially inside the skeleton member width with respect to the door outer panel when viewed from the orthogonal cross section. And a joining piece that is provided on the member and joined to the door outer panel.

  In this vehicle door structure, the skeleton member extends along the door outer panel on the vehicle interior side with respect to the door outer panel, and forms a door outer and a closed cross section when viewed in an orthogonal cross section orthogonal to the extending direction. is doing. The frame member maintains the structure of the vehicle door.

  The skeleton member is joined to the door outer panel with a joining piece. At least a part of the joining piece is located on the inner side of the width of the skeleton member with respect to a portion facing the door outer panel as seen in an orthogonal cross section orthogonal to the extending direction. That is, at least a part of the joining piece does not protrude beyond the width of the skeleton member as compared with the portion facing the door outer panel as seen in the cross section of the skeleton member. For this reason, a vehicle interior can be ensured widely compared with the structure where the whole joining piece is located in the outer side of the frame | skeleton member width rather than the opposing part with a door outer panel seeing in an orthogonal cross section.

  Note that the “frame member width” appears as the length of a line segment connecting the end portions on both sides of the portion facing the door outer when the frame member is viewed in an orthogonal cross section.

  According to a second aspect of the present invention, in the first aspect of the present invention, the joining piece extends from the skeletal member on both sides of the width of the skeletal member, and at least one of the joining pieces is from the opposing portion. Is also located inside the skeleton member width.

  The joining piece extends from the skeleton member on each side of the skeleton member width. Since two joining pieces are provided, the skeleton member can be more reliably joined to the door outer panel.

  At least one of the joining pieces is located on the inner side of the skeleton member width with respect to the portion facing the door outer panel. Therefore, compared with the structure where both of the two joining pieces are located outside the skeleton member width than the portion facing the door outer panel, the vehicle interior can be secured widely.

  In invention of Claim 3, in invention of Claim 1 or Claim 2, the said frame | skeleton member is equipped with the integral hinge formed along the said extension direction, and after die-cutting from a shaping die The skeletal member is pivoted about the integral hinge so that the joining piece becomes a joining position to the door outer panel.

  Therefore, for example, when forming a skeleton member provided with a joining piece, it is possible to easily perform die cutting by making the skeleton member or the joining piece a shape that does not catch on the mold when the die is cut. After die cutting, the skeleton member is rotated around the integral hinge so that the joining piece becomes a joining position to the door outer panel, so that the joining piece can be joined to the door outer panel.

  In the invention according to claim 4, in the invention according to any one of claims 1 to 3, at least a portion of the door outer panel to which the joining piece is joined is from the vehicle compartment outside to the vehicle interior side. Includes door glass that allows light to pass through.

  Through the door glass, the outside of the passenger compartment can be seen from the passenger compartment. At least a part of the joining piece of the skeleton member does not protrude to the outside of the width of the skeleton member as viewed in the orthogonal cross section than the portion facing the door glass. For this reason, when all of the joining pieces are viewed in an orthogonal cross section and compared with a structure located outside the width of the skeleton member with respect to a portion facing the door outer panel, when the outside of the vehicle compartment is viewed from the vehicle interior The portion blocked by the joining piece is narrowed and the field of view is widened.

  Since the present invention has the above-described configuration, a vehicle door structure capable of ensuring a wide vehicle interior is obtained.

1 is a perspective view showing a back door to which a vehicle door structure of a first embodiment of the present invention is applied together with a part of a vehicle. FIG. 2 is a cross-sectional view taken along line 2-2 of FIG. 1 and partially showing a back door to which the vehicle door structure of the first embodiment of the present invention is applied. It is sectional drawing which expands partially the back door to which the vehicle door structure of the comparative example was applied, and shows it with the cross section similar to FIG. It is explanatory drawing which shows the process in the middle of shape | molding the door inner used for the door structure for vehicles, and a joining piece, (A) is a structure without an integral hinge, (B) and (C) are the structures with an integral hinge. Each case is shown. It is sectional drawing which expands partially the back door to which the vehicle door structure of 2nd Embodiment of this invention was applied, and shows it with the cross section similar to FIG. It is sectional drawing which expands partially the back door to which the vehicle door structure of 3rd Embodiment of this invention was applied, and is shown in the cross section similar to FIG. It is sectional drawing which expands partially the back door to which the vehicle door structure of 4th Embodiment of this invention was applied, and is shown in the cross section similar to FIG. It is sectional drawing which expands and partially shows the back door to which the vehicle door structure of 5th Embodiment of this invention was applied in the cross section similar to FIG.

  FIG. 1 shows a back door 14 of a vehicle to which a vehicle door structure 12 according to a first embodiment of the present invention is applied in a state where an opening portion on the rear side of an automobile is closed (hereinafter referred to as “closed state”). Has been. FIG. 2 shows the back door 14 in a cross-sectional view taken along line 2-2 in FIG. In each drawing, the front side of the vehicle is indicated by an arrow FR, the rear side of the vehicle is indicated by an arrow RR, the upper side of the vehicle is indicated by an arrow UP, and the outer side in the vehicle width direction is indicated by an arrow OUT.

  The back door 14 has a substantially flat rear glass 16. In the example shown in FIG. 1, the rear glass 16 is disposed in substantially the upper half of the back door 14. The rear glass 16 is configured to be transparent or translucent with a material that transmits light. Through the rear glass 16, the outside of the passenger compartment on the vehicle rear side can be visually recognized from the passenger compartment.

  As shown in FIG. 2, the back door 14 includes a door inner 18. The door inner 18 is disposed so as to extend in the vertical direction with respect to the rear glass 16 on the vehicle interior side and on both sides in the vehicle width direction. FIG. 2 shows a cross section (orthogonal cross section) in which the door inner 18 is cut in a direction orthogonal to the extending direction. In this embodiment, the door inner 18 is made of resin.

  The door inner 18 is formed in a substantially U shape having a bottom portion 18B, an inner portion 18N, and an outer portion 18G in the orthogonal cross section shown in FIG. And it is arrange | positioned in the direction opened toward the rear glass 16 (in this embodiment, since the back door 14 is mentioned, toward the vehicle rear in the closed state of the back door 14), and between the rear glass 16 Constructs a closed section.

  Here, the door inner width 18W (the “skeleton member width” according to the present invention) is defined as the maximum width in the direction (arrow W direction) along the portion facing the rear glass 16 when viewed in an orthogonal cross section. The door inner width 18W appears as the length of a line segment connecting both ends 18A and 18C of the portion of the door inner 18 facing the rear glass 16 in the orthogonal cross section shown in FIG.

  A seal lip 22 is attached to the body panel 20 of the vehicle at a position facing the bottom 18B of the door inner 18. The seal lip 22 is disposed so as to surround the outer peripheral portion of the back door 14 when the back door 14 is in the closed state, and is in close contact with the back door 14. At this time, the cargo compartment 24 (space in the vehicle compartment) is formed on the inner side in the vehicle width direction than the seal lip 22.

  A flange-shaped inner joint piece 26N and an outer joint piece 26G extend from the tips of the inner portion 18N and the outer portion 18G of the door inner 18. In the present embodiment, the inner joint piece 26N extends outward (inward in the vehicle width direction) with respect to the door inner width 18W. The outer joining piece 26G extends toward the inner side (the inner side in the vehicle width direction) with respect to the door inner width 18W.

  Both the inner joining piece 26 </ b> N and the outer joining piece 26 </ b> G extend along the rear glass 16. The inner joining piece 26N and the outer joining piece 26G are bonded to the rear glass 16 with an adhesive 28, whereby the rear glass 16 is held at a predetermined position of the back door 14 by the door inner 18.

  If necessary, the rear glass 16 is subjected to a coloring process 34 by a black ceramic process or the like at a portion facing the door inner 18.

  Next, the operation of the vehicle door structure 12 of this embodiment will be described.

  3 shows a vehicle door structure 102 of a comparative example in the same cross section as FIG. The vehicle door structure 102 of the comparative example is the same as the vehicle door structure 12 of the first embodiment in that the inner joint piece 106N extends outward with respect to the door inner width 18W. It differs from the vehicle door structure 12 of the first embodiment in that it extends outward with respect to the door inner width 18W.

  Therefore, in the vehicle door structure 102 of the comparative example, the door inner 18 is located on the inner side in the vehicle width direction as compared with the vehicle door structure 12 of the first embodiment. Accordingly, the seal lip 22 of the body panel 20 is also located on the inner side in the vehicle width direction. Accordingly, the luggage compartment 24 is narrow in the vehicle door structure 102 of the comparative example.

  Further, in the vehicle door structure 102 of the comparative example, the area of the portion where the rear glass 16 is covered by the door inner 18, the inner joint piece 106N, and the outer joint piece 106S is large when the rear of the vehicle is viewed from inside the vehicle interior. That is, when viewed from the passenger compartment to the outside of the passenger compartment on the rear side of the vehicle (through the rear glass 16), the portion blocked by the door inner 18, the inner joint piece 106N, and the outer joint piece 106S is widened, and the field of view is narrow. .

  On the other hand, in the vehicle door structure 12 of the first embodiment, as can be seen from FIG. 2, the outer joint piece 26G extends inward with respect to the door inner width 18W. The door inner 18 and the inner joint piece 26N are located on the outer side in the vehicle width direction. Further, the seal lip 22 of the body panel 20 is also located on the outer side in the vehicle width direction. Due to these factors, the luggage compartment 24 is wider than the vehicle door structure 102 of the comparative example.

  Moreover, in the vehicle door structure 12 of the first embodiment, when the rear of the vehicle is viewed from the vehicle interior, the area of the portion where the rear glass 16 is covered by the door inner 18, the inner joint piece 26N, and the outer joint piece 26G is also large (substantially Since the outer joint piece 26G overlaps the door inner 18, the outer joint piece 26G itself does not cover the rear glass 16). The field of view when viewing the outside of the passenger compartment on the vehicle rear side (through the rear glass 16) from the passenger compartment is narrow.

  In addition, although the manufacturing method of the door inner 18 of 1st Embodiment is not specifically limited, When demolding from a shaping die, it may be difficult to space apart and demold. For example, in the molds 42 and 44 having the structure shown in FIG. 4A, it is difficult or impossible to move in the directions indicated by the arrows R1 and R2. This is because when the mold 42 is moved in the direction of the arrow R1, so-called negative angle molding (undercut) occurs, and the movement of the mold 42 is caught by a molded product. Therefore, a die having a special structure is required for die cutting, or a specific work is required at the time of die cutting.

  On the other hand, in the door inner 18 of this embodiment, the integral hinge 30 made thin along the extending direction is formed. With the integral hinge 30, the outer joint piece 26 </ b> G is rotatable with respect to the door inner 18. In the state where the outer joining piece 26G is rotated to the position indicated by the two-dot chain line in FIG. 4B, the above-described catch does not occur with respect to the movement of the mold 42 in the arrow R1 direction, and the mold 42 is moved to the arrow R1. Can be moved in the direction. That is, by forming the integral hinge 30 on the door inner 18, the door inner 18 can be easily formed.

  After the door inner 18 is molded, the outer joining piece 26G is rotated in the direction of the arrow R3 around the integral hinge 30 to be in a position where it can be adhered to the rear glass 16. If necessary, a rib 32 may be provided between the door inner 18 and the outer joint piece 26G so that the shape and position of the outer joint piece 26G can be stably maintained.

  In FIG. 2 and FIG. 4B, the position of the integral hinge 30 provided on the door inner 18 is in the vicinity of the boundary between the outer portion 18G and the outer joint piece 26G, but the position of the integral hinge 30 is limited to this. Not. For example, in the example shown in FIG. 4C, the integral hinge 30 is set at the boundary between the bottom portion 18B and the inner portion 18N. And one part 18P of the door inner 18 used as the boundary of the integral hinge 30 is rotatable with respect to the other part 18Q.

  In FIG. 5, a back door 54 to which the vehicle door structure 52 of the second embodiment of the present invention is applied is shown partially enlarged by a cross section similar to FIG. In the following embodiments, the same components and members as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  The vehicle door structure 52 of the second embodiment is the same as the first embodiment in that the outer joint piece 26G extends inward with respect to the door inner width 18W when viewed in a cross section of the door inner 18. Further, the inner joining piece 26N extends inward with respect to the door inner width 18W. Thus, since the inner joining piece 26N is located inside the door inner width 18W, the luggage compartment 24 is further widened as compared with the vehicle door structure 12 of the first embodiment. In FIG. 5, for comparison, the inner joint piece 106 </ b> N (the same member as the inner joint piece 106 </ b> N shown as the comparative example in FIG. 3) extended outward with respect to the door inner width 18 </ b> W is indicated by a two-dot chain line. Yes.

  Further, the field of view from the passenger compartment to the outside of the rear passenger compartment is not obstructed by the inner joint piece 26N, so the field of view is wider than the vehicle door structure 12 of the first embodiment.

  In FIG. 6, a back door 64 to which the vehicle door structure 62 of the third embodiment of the present invention is applied is shown partially enlarged by the same cross section as that of FIG.

  In the vehicle door structure 62 of the third embodiment, the outer joint piece 26G extends to the outside with respect to the door inner width 18W when viewed in the orthogonal cross section of the door inner 18, but the inner joint piece 26N has a width relative to the door inner width 18W. It is extended inside.

  Therefore, also in the vehicle door structure 62 of the third embodiment, the inner joint piece 26N extends to the inside of the door inner width 18W, for example, as compared with the vehicle door structure 102 of the comparative example. 24 becomes wider. Further, the field of view from the passenger compartment to the outside of the rear passenger compartment is not obstructed by the inner joint piece 26N, so the field of view is wider than the vehicle door structure 102 of the comparative example.

  In FIG. 7, a back door 74 to which a vehicle door structure 72 according to a fourth embodiment of the present invention is applied is shown partially enlarged by a cross section similar to FIG.

  In the vehicle door structure 72 of the fourth embodiment, the inner joint piece 26N and the outer joint piece 26G extending from the door inner 18 are not formed as in the first to third embodiments. Instead, in the fourth embodiment, a part on the rear glass 16 side in the inner portion 18N and the outer portion 18G of the door inner 18 is an inner joint portion 18U and an outer joint portion 18S. In other words, a part of the door inner 18 also serves as the inner joint piece 26N and the outer joint piece 26G.

  Moreover, in 4th Embodiment, the joining pieces 16S and 16U which are respectively opposite to the inner junction part 18U and the outer junction part 18S are extended from the rear glass 16. FIG.

  Also in the vehicle door structure 72 of the fourth embodiment configured as described above, the inner joint piece 26N and the outer joint piece 26G are substantially located inside the door inner width 18W. For this reason, compared with the vehicle door structure 102 of the comparative example, for example, the luggage compartment 24 is widened and the field of view from the vehicle interior to the vehicle interior behind the vehicle is also widened.

  In FIG. 8, a back door 84 to which a vehicle door structure 82 according to a fifth embodiment of the present invention is applied is shown partially enlarged by a cross section similar to FIG.

  In the fifth embodiment, the end portion in the vehicle width direction of the rear glass 16 is greatly curved toward the front side of the vehicle (the degree of curvature is larger than that of the rear glass 16 of the first embodiment). The door inner 18 is disposed to face the curved portion 16B, and the bottom 18B is inclined obliquely (approximately 45 degrees in the example shown in FIG. 8) with respect to the vehicle width direction. Further, the outer portion 18G is formed along the vehicle width direction. In the fifth embodiment, the door inner width 18W also appears obliquely with respect to the vehicle width direction.

  And in the vehicle door structure 82 of 5th Embodiment (especially in the example shown in FIG. 8), the inner joining piece 26N is extended inside with respect to the door inner width 18W, and the outer joining piece 26G is with respect to the door inner width 18W. It extends outward.

  As described above, even if the vehicle width direction end portion of the rear glass 16 is greatly curved toward the vehicle front side, at least one of the inner joint piece 26N and the outer joint piece 26G extends inward with respect to the door inner width 18W. As a result, the luggage compartment 24 becomes wider and the field of view when the outside of the passenger compartment on the vehicle rear side is visually recognized from the passenger compartment becomes wider.

  In addition, although the rear glass 16 was mentioned as the door outer panel of this invention in the above, as a door outer panel, it is not limited to the member (glass etc.) which permeate | transmits light in this way. That is, even if it is a panel which does not permeate | transmit light, it is possible to enlarge a cargo compartment (vehicle interior) by applying the vehicle door structure of this invention. Moreover, the member (for example, door outer) which comprises the vehicle frame | skeleton member which has an integral closed cross section by joining to the door inner 18 may be sufficient.

  As the joining piece of the present invention, the above description includes two joining pieces (inner joining piece 26N and outer joining piece 26G) extending from the door inner 18 on both sides of the door inner width 18W. Only one piece, that is, one joining piece may be extended. In this structure, it is only necessary that one joining piece extends inside the door inner width 18W. The joining piece may be extended from the inner side of the door inner 18, for example.

  The method of joining the joining piece to the door outer panel is not limited to the above-described adhesion. For example, they may be joined by so-called hemming or the like, or may be joined by welding or welding (such as spot welding) depending on the material of the joining piece and the door outer panel.

  The structure of the door inner 18 is not limited to a substantially U-shape having the bottom 18B, the inner portion 18N, and the outer portion 18G as described above. In short, any member that extends along the door outer panel on the vehicle interior side of the door outer panel and constitutes the skeleton of the door may be used.

  Although the example in which the extending direction of the door inner 18 extends in the vertical direction is given above, it may be extended along the horizontal direction (vehicle width direction), for example. In this case, the door inner width appears in the vertical direction (vertical direction).

  The vehicle door as an application target of the present invention is not limited to the back door 14 described above, and may be a side door, for example. In particular, the side door may have a structure in which glass that cannot be raised and lowered is fitted. In this case, the present invention can be applied using such a glass that cannot be raised and lowered as the door outer panel of the present invention.

  As the vehicle door, the door disposed in the substantially vertical direction is shown in FIG. 1, but it may be a door of a vehicle (for example, hatchback) that is inclined in the closed state.

12 Vehicle door structure 14 Back door 16 Rear glass (door outer panel)
16S, 16U Joint piece 18 Door inner (frame member)
18W Door inner width 18S Outer joint (joint piece)
18U inner joint (joint piece)
24 Cargo 26G Outer joint piece 26N Inner joint piece 30 Integral hinge 52 Vehicle door structure 54 Back door 62 Vehicle door structure 64 Back door 72 Vehicle door structure 74 Back door 82 Vehicle door structure 84 Back door

Claims (4)

A door outer panel constituting a vehicle door;
A skeletal member that extends along the door outer panel on the vehicle interior side than the door outer panel, and forms a door outer and a closed cross section when viewed in an orthogonal cross section orthogonal to the extending direction;
A joining piece that is provided on the skeleton member and is joined to the door outer panel so that the skeleton member is at least partially located on the inner side of the width of the skeleton member with respect to the door outer panel when the skeleton member is seen in the orthogonal cross section. When,
A vehicle door structure. The joining pieces are respectively extended from the skeleton member on both sides of the skeleton member width;
The vehicle door structure according to claim 1, wherein at least one of the joining pieces is located inside the skeleton member width with respect to the facing portion.   The skeletal member includes an integral hinge formed along the extending direction, and the skeleton member has an integral hinge so that the joining piece becomes a joining position to the door outer panel after being die-cut from the molding die. The vehicle door structure according to claim 1 or 2, wherein the vehicle door structure is rotated as a center.   The vehicle according to any one of claims 1 to 3, wherein at least a portion of the door outer panel to which the joining piece is joined includes a door glass that transmits light from the outside of the cabin to the inside of the cabin. Door structure.

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