JP5691879B2 - Front door structure for vehicles - Google Patents

Description

  The present invention relates to a vehicle front door structure, and more particularly to a vehicle front door structure in which a door mirror fixing portion is provided with a reinforcing member for attaching a door mirror.

  A door main body constituting a vehicle front door is mainly composed of a door outer panel and a door inner panel, and a door glass that opens and closes the opening is attached to the opening thereof so as to be movable up and down. In such a vehicle front door structure, it is known that the rigidity at the base of the opening, such as a door mirror mounting portion, greatly affects the door opening / closing strength durability and the air sucking sound during high-speed driving. ing.

  Conventionally, a door body, a door sash that forms a window frame portion of the door glass provided on the door body, a guide rail that extends from the middle of the front frame portion of the door sash toward the door body side and guides the front of the door glass The vehicle front door has a front end corner portion of the vehicle formed by a front frame portion of the door sash and a guide rail, and a lower portion thereof is fixed to the door inner panel and a reinforcing member used for fixing the door mirror. In this structure, the door outer panel and the door inner panel are provided with overlapping portions that overlap the front frame and the reinforcing member of the door sash, and the rigidity of the door is increased by fixing the overlapping portion with the front frame and the reinforcing member of the door sash. Some have been improved (for example, see Patent Document 1).

  Further, in the structure of the vehicle front door as disclosed in Patent Document 1 described above, an extension portion is extended to the front frame portion of the door sash, and a projecting portion is provided at a portion corresponding to the extension portion of the reinforcing member. In some cases, the fixed portion between the extension portion and the launch portion is formed to fix the door sash and the reinforcing member to increase the sash rigidity of the door (for example, see Patent Document 2).

JP-A-11-342745 JP 2005-263141 A

  However, in the conventional front door structure as described above, the reinforcing member and the guide rail have a side end portion formed by bending the rear end side of the reinforcing member toward the door outer panel side, and a cross-sectional view. It was joined by fixing the bottom surface part (surface extending up and down on the vehicle front side) of the U-shaped guide rail by welding or the like. That is, the two members of the reinforcing member and the guide rail are merely temporarily fixed. On the other hand, in the vehicle front door structure, there has been a demand for further improvement in rigidity at the base of the opening that is opened and closed by the door glass.

  Accordingly, an object of the present invention is to provide a vehicle front door structure that can further improve the rigidity of the base portion of the opening that is opened and closed by the door glass of the vehicle front door.

A vehicle front door structure according to a first invention for solving the above problems includes a door outer panel positioned on the vehicle outer side, a door inner panel positioned on the vehicle inner side, an opening that is opened and closed by a door glass, A door side mirror reinforcement disposed between the door outer panel and the door inner panel and disposed on the vehicle front side of the opening to fix the door mirror; and a guide rail for guiding the front of the door glass. In the vehicle front door structure, the guide rail has a first side surface facing the door inner panel, a second side surface facing the vehicle front end of the door glass, and a third side surface facing the door outer panel. The door side mirror reinforcement is arranged on the door inner panel side. Meanwhile, a portion corresponding to the mounting portion of the door mirror protrudes toward the vehicle outer side along the second side surface portion of the guide rail to form a convex surface portion, and the door outer panel is a third side surface portion of the guide rail. A portion from a position facing to a position facing the convex surface portion of the door side mirror reinforcement is formed in a straight line shape in cross section, and the convex surface portion is overlapped with a linear portion in a cross sectional view of the door outer panel, The side inner side of the door inner panel in a state where the side end of the side mirror reinforcement is sandwiched between the side end of the door inner panel on the side of the opening and the first side surface of the guide rail . It is characterized by being joined to the end portion and the first side surface portion of the guide rail.

A vehicle front door structure according to a second aspect of the present invention for solving the above-described problem is the vehicle front door structure according to the first aspect of the present invention, wherein the side end portion on the opening side of the door inner panel is On the side end of the guide rail on the opening side with the side end on the opening side of the first side portion sandwiched between the side end on the opening side of the door side mirror reinforcement. the hemming bending along the side edges of the opening side of the door side mirror reinforcement is, junction into a first side portion of the opening side of the side end portion of the door inner panel and the guide rail It is characterized by that.

According to the vehicle front door structure according to the first aspect described above, the door outer panel located outside the vehicle, the door inner panel located inside the vehicle, the opening opened and closed by the door glass, the door outer panel and the door a door side mirror reinforcement for fixing the door mirror is a and is disposed on the vehicle front side of the opening between the inner panel, the front door structure for a vehicle and a guide rail for guiding the front of the door glass, the guide The rail is formed in a substantially U-shaped cross-sectional view including a first side surface portion facing the door inner panel, a second side surface portion facing the end portion of the door glass on the vehicle front side, and a third side surface portion facing the door outer panel. The door side mirror reinforcement is arranged on the door inner panel side, while the portion corresponding to the door mirror mounting portion is a guide. Projecting toward the vehicle outer side along the second side surface portion of the rail to form a convex surface portion, the door outer panel from a position facing the third side surface portion of the guide rail to a position facing the convex surface portion of the door side mirror reinforcement Is formed in a straight line shape in cross section, the convex surface portion is overlapped with the straight line portion in cross section in the door outer panel, and the side end portion on the opening side of the door side mirror reinforcement is on the opening side of the door inner panel. The door side provided to fix the door mirror because it is joined to the side end portion of the door inner panel and the first side surface portion of the guide rail while being sandwiched between the side end portion and the first side surface portion of the guide rail . Using the mirror reinforcement, it is possible to improve the rigidity of the base portion of the opening that is opened and closed by the door glass without adding a new member.

Further, according to the vehicle front door structure according to the second aspect described above, the side end on the opening side of the door inner panel is connected to the side end on the opening side of the first side surface portion of the guide rail and the door side. The side end on the opening side of the door side mirror reinforcement is the door by a hemming process that bends along the side end on the opening side of the guide rail while sandwiching the side end on the opening side of the mirror reinforcement. since engaged against the a first side portion of the inner panel side edge portion of the opening side and the guide rail, it is possible to improve the rigidity of the base portion of the opening that is opened and closed by the door glass.

1 is a perspective view showing a vehicle front door structure according to an embodiment of the present invention. It is II-II arrow sectional drawing of FIG. FIG. 3 is a cross-sectional view taken along the line III-III in FIG. 1. It is a side view which shows the side mirror attaching part to which the vehicle front door structure which concerns on the Example of this invention is applied.

  Hereinafter, a vehicle front door structure according to the present invention will be described in detail with reference to the drawings.

An embodiment of a vehicle front door structure according to the present invention will be described with reference to FIGS.
As shown in FIG. 4, in the vehicle front door 1, the door mirror 2 is attached to the vehicle front side of the opening that is opened and closed by the door glass 3. The interior of the front door 1 in the vicinity of the door mirror 2 mounting portion (hereinafter referred to as a door mirror mounting portion) has a structure as shown in FIG.

  FIG. 1 is a perspective view showing a state in which the door outer panel 11 (see FIGS. 2 and 3) is removed and the front end corner portion of the vehicle front door 1 is viewed from the outside of the vehicle. As shown in FIG. 1, an opening 12 a that is opened and closed by a door glass 3 is formed in a door inner panel 12 that constitutes a door body of a vehicle front door 1. Although not shown, the door outer panel 11 is similarly formed with an opening that can be opened and closed by the door glass 3.

  As shown in FIGS. 1 to 3, a door side mirror reinforcement 13 and a guide rail 14 are provided between the door outer panel 11 and the door inner panel 12 on the vehicle front side of the opening 12 a of the vehicle front door 1. And are provided.

  The door side mirror reinforcement 13 is a plate-like member disposed for the purpose of fixing the door mirror 2, and is fixed to the door inner panel 12 on the vehicle front side of the opening 12a. The door side mirror reinforcement 13 is provided with a convex surface portion 13a at a portion corresponding to the door mirror mounting portion. The convex portion 13a is provided with mirror mounting holes 13b and 13c, and the door mirror 2 is fixed through the mounting holes 11a and 11b provided in the door outer panel 11.

  The guide rail 14 is formed in a substantially U-shaped cross-sectional view composed of a first side surface portion 14a, a second side surface portion 14b, and a third side surface portion 14c so as to guide the front of the door glass 3, and the front of the opening portion 12a. Is extended downward. The first side surface portion 14 a of the guide rail 14 faces the door inner panel 12, the third side surface portion 14 c faces the door outer panel 11, and the second side surface portion 14 b faces the end portion of the door glass 3 on the vehicle front side. doing.

  In the present embodiment, as shown in FIGS. 2 and 3, the side end portion 13d of the door side mirror reinforcement 13 includes the side end portion 12b of the door inner panel 12 and the first side surface portion 14a of the guide rail 14. It is arrange | positioned so that it may be pinched | interposed between. In other words, the door inner panel 12, the door side mirror reinforcement 13, and the guide rail 14 are in a state where the portions on the opening 12a side overlap each other. The overlapping portions are joined by three-sheet hemming.

  Note that reference numerals 12c and 13e shown in FIG. 2 are working holes provided in the door inner panel 12 and the door side mirror reinforcement 13, respectively.

  Below, the effect by the vehicle front door structure which concerns on a present Example mentioned above is demonstrated. In the vehicle front door structure according to the present embodiment, as described above, the side end 12b of the door inner panel 12 positioned in front of the opening 12a opened and closed by the door glass 3 and the first of the guide rail 14 are provided. The side end portion 13d of the door side mirror reinforcement 13 is sandwiched between the side surface portion 14a and these three members are joined.

  For this reason, the rigidity of the door mirror mounting portion is secured by the three members of the door outer panel 11, the door inner panel 12, and the door side mirror reinforcement 13, and conventionally, the side end portion of the reinforcing member is bent outward of the vehicle. Compared with a structure in which two members of the bent portion and the bottom surface portion 13b of the guide rail 14 are overlapped and temporarily fixed, the opening that is opened and closed by the door glass 3 of the vehicle front door 1 The rigidity of the base part of the part 12a can be improved.

  Moreover, by using the door side mirror reinforcement 13 that has not conventionally contributed to the improvement of the rigidity of the door mirror mounting portion, the base portion of the opening 12a that is opened and closed by the door glass 3 without adding a new member. The rigidity can be improved.

  In the embodiment described above, the side end portion 12b of the door inner panel 12, the side end portion 13d of the door side mirror reinforcement 13, and the first side surface portion 14a of the guide rail 14 are joined by hemming. Although an example was shown, the method of joining these is not limited to the three-sheet hemming process, for example, spot welding or the like, and the side end 12b of the door inner panel 12 positioned in front of the opening 12a opened and closed by the door glass 3 What is necessary is just to make it join in the state which pinched | interposed the side edge part 13d of the door side mirror reinforcement 13 between the 1st side surface parts 14a of the guide rail 14, and various changes in the range which does not deviate from the meaning of this invention. It goes without saying that is possible.

  The present invention is preferably applied to a vehicle front door structure in which a door mirror fixing portion is provided with a reinforcing member for attaching a door mirror.

DESCRIPTION OF SYMBOLS 1 Front door 2 Door mirror 3 Door glass 11 Door outer panel 12 Door inner panel 12a Opening part 12b Side edge part 13 Door side mirror reinforcement 13a Convex part 13d Side edge part 14 Guide rail 14a First side part 14b Second side part 14c Three sides

Claims (2)

A door outer panel located outside the vehicle, a door inner panel located inside the vehicle, an opening opened and closed by a door glass, and between the door outer panel and the door inner panel, on the vehicle front side of the opening In a vehicle front door structure comprising a door side mirror reinforcement disposed on the door glass and a guide rail for guiding the front of the door glass,
The guide rail includes a first side surface facing the door inner panel, a second side surface facing the vehicle front end of the door glass, and a third side surface facing the door outer panel. Formed in the shape of
The door side mirror reinforcement is disposed on the door inner panel side, and a portion corresponding to the mounting portion of the door mirror protrudes toward the vehicle outer side along the second side surface portion of the guide rail and is a convex surface portion. Form the
In the door outer panel, a portion from a position facing the third side surface portion of the guide rail to a position facing the convex surface portion of the door side mirror reinforcement is formed in a straight line shape in cross section.
The convex portion is overlapped with a linear portion in a sectional view of the door outer panel,
The door inner panel in a state in which the side end portion on the opening side of the door side mirror reinforcement is sandwiched between the side end portion on the opening side of the door inner panel and the first side surface portion of the guide rail . A front door structure for a vehicle, which is joined to a side end portion of the guide rail and a first side surface portion of the guide rail. The side end on the opening side of the door inner panel is sandwiched between the side end on the opening side of the first side surface of the guide rail and the side end on the opening side of the door side mirror reinforcement. The side end portion of the door side mirror reinforcement on the opening side of the door inner panel is made hemmed by bending along the side end portion of the guide rail in the open state. front door structure for a vehicle according to claim 1, characterized in that engaged against the a first side portion of the side edge and the guide rail.

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