JPH048250B2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a back door structure for an automobile.

(Prior Art) Usually, an opening is formed in the trunk of an automobile body, and this opening is covered with a back door, that is, a trunk lid. However, such conventional backdoors have a structure that simply opens the trunk, and therefore have the disadvantage that they cannot load luggage larger than a predetermined size.

(Object of the Invention) An object of the present invention is to provide a back door structure for an automobile that eliminates the drawbacks of the conventional back door structure described above.

(Structure of the Invention) The back door structure for an automobile according to the present invention includes a rear window portion rotatably attached at a first fulcrum at the upper part of the rear opening of the automobile body, and a rear window portion that covers the trunk room of the automobile when closed. an arm having one end rotatably attached to a second branch at the rear of the rear window portion and the other end fixedly attached to the front portion of the trunk door portion; is attached to the automobile body at a third fulcrum on the edge of the rear opening, and a damper member whose other end is attached to the arm; Keep the rear window section in the closed position,
When only the trunk door portion is to be opened, the damper member extends while rotating about the third fulcrum, and the rear window portion is rotated relative to the vehicle body while the trunk door portion remains open. , when fully opening the rear window,
The damper member further expands and reaches the maximum extent before the rear window portion reaches a fully open state, and rotates about the third fulcrum while maintaining the most expanded state until the rear window portion fully opens. It is characterized by

(Effects of the Invention) In the automobile back door structure having the above configuration, the back door includes a rear window section that is rotatably attached to the vehicle body, and a trunk section that is rotatably attached to the rear window section. As a result, it is possible to open only the trunk section or the entire back door depending on the size of the cargo, which has a great practical effect. Further, when the back door is fully opened, the damper member that holds the back door in the fully open position, when the back door is opened when the trunk section is in the open position, according to the opening operation of the back door,
Since the trunk section is automatically moved from the open position to the closed position, it is convenient to close the back door in the same state.

(Embodiment) Hereinafter, a back door structure for an automobile according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

The accompanying drawing is a side view of a back door structure according to an embodiment of the invention.

In this figure, reference numeral 1 indicates a car body, and a back door 2 is provided at the rear opening of the car body 1. As shown in FIG. The back door 2 is comprised of a back door rear window part 3 that covers a rear window part, and a back door trunk part 4 that covers a trunk part.
The back door rear window part 3 is rotatably attached to the vehicle body 1 by a hinge 5, and is positioned in either a closed position shown by a solid line in the figure or an open position shown by a two-dot chain line in the figure. It is becoming more and more popular. The hinge 5 constitutes a first fulcrum. On both sides of the back door rear window section 3 in the vicinity of the trunk section, arms 6 and 7 are rotatably mounted on a shaft 8 at one end of each arm on the rear side. The shaft 8 constitutes a second fulcrum. The back door trunk section 4 is supported by the arms 6 and 7, and thus the back door trunk section 4 is rotatable relative to the back door rear window section 3.

A first damper 10 and a second damper 9 are pivotally mounted on the left and right sides of the vehicle body 1 at one end thereof by a shaft 11, respectively. The shaft 11 constitutes a third fulcrum. The other end of the second damper 9 is pivotally connected to the arm 6, and the other end of the first damper 10 is pivotally connected to the arm 7. The first damper 10 is configured to prevent the rear door trunk section 4 from being rotated relative to the rear window section 3 from the closed position shown by the solid line in the figure and moved to the open position shown by the broken line in the figure. It functions to hold the door trunk section 4 in this open position.
The first damper 10 further has a stopper to prevent it from being extended beyond a predetermined value, so that when the backdoor trunk section 4 is in the open position,
When the entire back door 2 is opened, the back door trunk section 4 is automatically opened in accordance with the opening operation of the back door 2.
is rotated in the closing direction with respect to the back door rear window part 3, and is positioned in a closed position with respect to the back door rear window part 3 when the back door 2 is fully opened. The first damper 10 also functions to hold the entire backdoor 2 in the open position in this state.

In the figure, reference numeral 12 indicates a locking member for fixing the lower end of the back door trunk section 4 to the vehicle body 1, and this locking member 12 is attached to the handle 13.
It is designed to be opened by the operator. The structures of the locking member 12 and the handle 13 may be the same as those of the conventional ones, so further explanation will be omitted.

[Brief explanation of drawings]

The figure is a side view of a backdoor structure according to an embodiment of the invention. 1... Vehicle body, 2... Back door, 3... Back door rear window section, 4... Back door trunk section, 10... Damper.

Claims (1)

[Scope of Claims] 1. A rear window portion rotatably attached to a first fulcrum above a rear opening of an automobile body, and a trunk door formed to cover a trunk room of the automobile when closed. Department and
an arm having one end rotatably attached to a second fulcrum at the rear of the rear window portion and the other end fixedly attached to the front portion of the trunk door portion; A back door structure for covering a rear opening of the automobile body, comprising a damper member attached to the automobile body at three fulcrums and the other end attached to the arm, wherein the rear window portion is maintained in a closed position. , when opening only the trunk door, the damper member extends while rotating about the third fulcrum, and rotates the rear window with respect to the vehicle body while keeping the trunk door open. and when the rear window is fully opened, the damper member further expands to the maximum extent before the rear window reaches the fully open state, and maintains the most expanded state until the rear window is fully opened; A backdoor structure for an automobile, characterized in that it rotates around the third fulcrum. 2. The automobile back door structure according to claim 1, further comprising a second damper member having one end attached to the third fulcrum and the other end attached to the rear part of the rear window portion. 3. The automobile back door structure according to claim 1 or 2, wherein the damper member has a stopper that restricts the maximum length of the damper member.