Hatchback door structure for vehicles

Abstract

A hatchback door structure a vehicle, which comprises: an inner panel which is arranged on an inner side of the vehicle; and an outer panel which is arranged on an outer side of the vehicle, wherein the inner panel comprises: a frame which has a shape outlining an outer shape of a hatchback door, wherein a window frame on which a window glass is mounted is formed in an upper portion of the frame and a locking device fixing portion for fixing a locking device is formed on a bottom of the frame; and a V-shaped stiffening frame which is integrally formed with the frame and extends from both a bottom left corner and a bottom tight corner of the window frame to the locking device fixing portion, wherein the V-shaped stiffening frame protrudes toward the outer panel from an inner side contour of the frame with respect to the vehicle.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is an illustration of a vehicle, seen from a backside of the vehicle, which is equipped with a hatchback door structure according to an embodiment of the present invention;

FIG. 2A is a perspective view of an inner panel configuring a hatchback door structure according to the embodiment;

FIG. 2B is an illustration of the inner panel, seen from an “A” arrow direction in FIG. 2A, configuring a hatchback door structure according to the embodiment;

FIG. 2C is an illustration of an inner panel, seen from the “A” arrow direction in FIG. 2A, configuring a hatchback door structure according to the embodiment, in which a V-shaped stiffening frame 6a is not protruded to an outer panel 3 in FIG. 2A and FIG. 2B;

FIG. 3 is a perspective view showing an inner panel to be used in the embodiment, which has an integrally formed lateral beam on a bottom of a window frame;

FIG. 4 is a perspective view showing an inner panel to be used in the embodiment, which has a discrete lateral beam on a bottom of a window frame; and

FIG. 5 is a schematic view of an example of a conventional hatchback door structure seen from a backside of a vehicle.

Claims

1. A hatchback door structure for a vehicle, comprising: an inner panel which is arranged on an inner side of the vehicle; andan outer panel which is arranged on an outer side of the vehicle,wherein the inner panel comprises:a frame which has a shape outlining an outer shape of a hatchback door,wherein a window frame on which a window glass is mounted is formed in an upper portion of the frame and a locking device fixing portion for fixing a locking device is formed on a bottom of the frame; anda V-shaped stiffening frame which is integrally formed with the frame and extends from both a bottom left corner and a bottom right corner of the window frame to the locking device fixing portion,wherein the V-shaped stiffening frame protrudes toward the outer panel from an inner side contour of the frame with respect to the vehicle.

2. The hatchback door structure for a vehicle according to claim 1, wherein the V-shaped stiffening frame is smoothly curved.

3. The hatchback door structure for a vehicle according to claim 1, wherein the V-shaped stiffening frame has a top portion which is closest to the outer panel,wherein a cut-and-turned-up portion which is to be jointed to the outer panel is formed on the top portion.

4. The hatchback door structure for a vehicle according to claim 2, wherein the V-shaped stiffening frame has a top portion which is closest to the outer panel, wherein a cut-and-turned-up portion which is to be jointed to the outer panel is formed on the top portion.

5. The hatchback door structure for a vehicle according to claim 3, wherein a cross sectional width of a part from the top portion to the locking device fixing portion of the V-shaped stiffening frame in an inside-outside direction of a hatchback door is designed to be smaller than a cross sectional width of a part from both the bottom left corner and the bottom right corner of the window frame to the top portion.

6. The hatchback door structure for a vehicle according to claim 4, wherein a cross sectional width of a part from the top portion to the locking device fixing portion of the V-shaped stiffening frame in an inside-outside direction of a hatchback door is designed to be smaller than a cross sectional width of a part from both the bottom left corner and the bottom right corner of the window frame to the top portion.