JPH0514070B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a back door lock device 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.

(Problems to be Solved by the Invention) An object of the present invention is to provide a locking device for a back door structure of an automobile, which eliminates the drawbacks of the conventional back door structure described above.

(Means for Solving the Problems) The present invention includes a rear window portion rotatably attached to a vehicle body, and a rear window portion rotatably attached to the rear window portion between an open position and a closed position. a back door that covers a rear opening of the vehicle body; and a damper member rotatably attached to one end of the vehicle body and the other end to the trunk portion of the back door, the damper member being rotatably attached to the trunk portion of the back door. When the back door is opened when the back door is in the open position, the trunk section is moved from the open position to the closed position in accordance with the opening operation of the back door, and at least when the back door is fully opened, the trunk section is set to the closed position and the back door is opened. A back door structure for an automobile configured to hold the rear window in a fully open position includes: a first lock member that locks the trunk portion to the vehicle body; a second lock member that restricts rotation of the trunk portion with respect to the rear window portion; A third lock member that locks the rear window portion to the vehicle body, a first operating means that simultaneously releases the first and third lock members, and a second operation that simultaneously releases the first and second lock members. It is characterized by having means.

(Embodiments) Hereinafter, a back door lock device for an automobile according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view of a back door of an automobile incorporating a back door device according to a preferred embodiment of the present invention, and FIG. 2 is a sectional view showing a portion of the back door shown in FIG.

In the 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 consists of a back door rear window part 3 forming a rear window and a back door trunk part 4 covering a trunk room.
The back door rear window part 3 is rotatably attached to the vehicle body 1 by a hinge 5, and is in a closed position shown by a solid line in FIG. 1 and in an open position shown by a two-dot chain line in FIG. It is designed to be positioned in either position. Arms 6 (first
The arms on the right in the figure are not shown) are each pivotally connected at one end by a shaft 8. The arm 6 is connected to the back door trunk section 4.
is supported, and thus the back door trunk section 4 is rotatable relative to the back door rear window section 3.

First and second dampers 9, 10 are provided on the left and right sides of the vehicle body 1, respectively, and shafts 11a, 11 are connected at one end thereof.
It is pivoted by 1b. The other end of the first damper 9 is pivotally connected to the arm 6, and the other end of the second damper 10 is pivotally connected to the back door rear window portion 3.
The first damper 9 is rotated relative to the backdoor rear window section 3 from the closed position shown by the solid line in FIG. 1, and moved to the open position shown by the dashed line in FIG. When this happens, the backdoor trunk section 4 is held in this open position. The first damper 9 further has a stopper to prevent it from being extended beyond a predetermined length, so that when the back door trunk section 4 is in the open position, it automatically opens in accordance with the opening operation of the back door 2. The backdoor trunk part 4 is rotated in a direction in which it closes with respect to the backdoor rear window part 3, and is positioned in a closed position with respect to the backdoor rear window part 3 at least when the backdoor 2 is fully opened. In this state, the first damper 9 also functions to hold the entire backdoor 2 in the open position together with the second damper 10.

A first locking member 12 for fixing the back door trunk section 4 to the vehicle body 1 is provided at the lower part of the back door trunk section 4. This first lock member 12 includes a ring member 13 fixed to the vehicle body 1,
It consists of a hook member 14 that is swingably attached to the backdoor trunk section 4. The above-mentioned back door rear window section 3 and back door trunk section 4
A second locking member 15 is provided at the pivot point for fixing the back door rear window part 3 and the back door trunk part 4 so that they cannot rotate relative to each other. This second lock member 15 is connected to a ring member 16 fixed to the back door rear window portion 3.
and a hook part 17 which is swingably attached to the back door trunk part 4. A third locking member 18 for fixing the back door rear window part 3 to the vehicle body 1 is provided at the lower part of the back door rear window part 3. This third lock member 1
8 consists of a ring member 19 fixed to the vehicle body 1 and a hook member 20 swingably attached to the back door rear window portion 3.

The first, second and third locking members 12,1
5 and 18 hook members 14, 17 and 20
are always urged by springs (not shown) into engagement positions with the ring members 13, 16, and 19, so that the back door rear window section 3 and the back door trunk section 4 are in their respective positions. When in the closed position, the locking member 12,1
5 and 18 are in a locked state.

On the outside of the lower part of the back door trunk section 4,
A first operating lever 21 for releasing the first and third locking members 12 and 18 is mounted so as to be swingable about a shaft 22, as shown in FIG. The hook member 14 of the first locking member 12 is operatively connected to the first operating lever 21 via a connecting member 23. Hook member 2 of the third lock member 18
0 is operatively connected to the first operating lever 21 via a first connecting device 24. This first coupling device 24 connects the rear door trunk section 4 with a shaft 25.
It has a link 26 pivotally connected to. This link 26 is operatively connected to the first operating lever 21 via an operating wire 27.
When the operating lever 21 is pulled forward, it can be rotated about the shaft 25 in the direction of the arrow. An operating rod 28 is fixed at one end to the link 26, and the other end of the operating rod 28 is fixed to the hook member 20 of the third locking member 18. In the above configuration, when the first operating lever 21 is pulled forward, the first locking member 12 is released, and at the same time, the movement of the lever 21 is transferred to the operating wire 2.
7 to the link 26, the link 26 is rotated in the direction of the arrow, and this rotation is transmitted to the hook member 20 via the operating rod 28, causing the hook member 20 to rotate. 3. Release the lock member 18. That is, by operating the first operating lever 21, the first and third locking members 12 and 18 can be released simultaneously. Therefore, the back door rear window section 3 and the back door trunk section 4 can be opened as one unit.

As shown in FIG. 2, a second operating lever 30 for simultaneously releasing the first and second locking members 12 and 15 is provided on the upper outer side of the vertical portion of the backdoor trunk section 4. axis 3
It is mounted so that it can pivot about 1. Hook member 14 of the first lock member 12
is operatively connected to this second operating lever 30 via a connecting rod 32, and when this second operating lever 30 is pulled forward, the hook member 14 is rotated in the direction in which the locking member 12 is released. I'm starting to feel like I'm being forced to do that.

Said second operating lever 30 is further operatively connected to the second locking member 15 via a second coupling device 33. This second connection device 33 is connected to the first
It is of the same construction as the coupling device and has a link 35 which is pivotally connected to the rear door trunk part 4 by an axis 34. This link 35 is operatively connected to the second operating lever 30 via an operating wire 36, and when the operating lever 30 is pulled forward, it rotates around the shaft 34 in the direction of the arrow. It has become possible to move. An operating rod 37 is fixed at one end of the link 35, and the other end of the operating rod 37 is connected to the second link 35.
It is fixed to the hook member 17 of the lock member 15.

In the above configuration, the second operating lever 30
When the lever is pulled forward, the first locking member 12 is released, and at the same time, the movement of the lever 30 is transmitted to the link 35 via the operating wire 36, and the link 35 is rotated in the direction of the arrow. , this rotation rotates the hook member 17 via the operating rod 37 and releases the second lock member 15. That is, by operating the second operation lever 30, the first and second lock members 12
and 15 can be canceled at the same time. Therefore, the locking of the back door trunk section 4 to the vehicle body 1 and the rotation restriction of the back door trunk section 4 relative to the back door rear window section 3 are simultaneously released, and the back door rear window section 3 remains closed. It becomes possible to open only the back door trunk section 4 until the end.

(Effects of the Invention) The back door lock device of the present invention described above has a simple structure consisting of a combination of three types of lock members and two types of levers, and can open the entire back door or only the back door trunk section. It's convenient.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a back door of an automobile incorporating a back door lock device according to an embodiment of the present invention, and FIG. 2 is a sectional view showing a part of the back door shown in FIG. 2... Back door, 3... Back door rear window section, 4... Back door trunk section, 12...
First lock member, 15...Second lock member, 18
...Third lock member, 21...First operation lever (first operation means), 30...Second operation lever (second
means of operation).

Claims (1)

[Claims] 1. A back door that covers the rear opening of the vehicle body and consists of 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 between an open position and a closed position. and,
a damper member, one end of which is rotatably attached to the vehicle body and the other end of which is rotatably attached to the trunk portion of the back door; A back door structure for an automobile, wherein the trunk section is moved from the open position to the closed position according to the opening operation of the back door, and the trunk section is set to the closed position at least when the back door is fully opened, and the back door is held at the fully open position. A first lock member that locks the trunk portion to the vehicle body, a second lock member that restricts rotation of the trunk portion with respect to the rear window portion, a third lock member that locks the rear window portion to the vehicle body, and a third lock member that locks the rear window portion to the vehicle body. A back door lock device for an automobile, comprising a first operation means for simultaneously releasing the first and third lock members, and a second operation means for simultaneously releasing the first and second lock members.