JPH10131580A - Latch device for car back door with hatch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To conduct the release of a first latch device and a second latch device and the changeover of the lock and unlock of the first latch device by power in a car back door with a hatch. SOLUTION: A power door opening device is connected to a first latch device 5 for a back door and a second latch device for a glass hatch respectively relatively, a lock mechanism changed over to a locked state and an unlocked state is installed to the first latch device 5, and an actuator 18 changing over the lock mechanism to the locked state or the unlocked state is fixed onto the frame 17 of the first latch device 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a latch device for a hatched vehicle back door.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 1, a back door which is attached to a rear portion of a vehicle body a by a hinge so as to be openable and closable is shown in FIG. b, a hatch c is attached to a part of the vehicle body a, and the back door b is held in a closed state with respect to the vehicle body a by a first latch device that engages with a first striker fixed to the vehicle body a. In a device that is held in a closed state with respect to the back door b by a second latch device that engages with a second striker fixed to the back door b, the back door b is provided with a power opening device having a motor, First release means for releasing the first door device from the first striker and second release means for releasing the second latch device from the second striker. When the power door device is operated in one direction, only the first latch device is released to open the back door b, and when the power door device is operated in the other direction, the second latch device is opened. A latch device for a hatched vehicle back door in which only the device is released to open the hatch c is described. Further, as shown in FIG. 2, a glass hatch c is attached to a part of a back door b which is attached to a rear part of a vehicle body a by a hinge so as to be freely opened and closed, as shown in FIG. The first latch device engaged with the first striker fixed to the vehicle body a is held in a closed state with respect to the vehicle body a, and the glass hatch c is engaged with the second striker fixed to the glass hatch c. The first latch device is provided with a lock mechanism that switches between a locked state and an unlocked state, wherein the back door b is held closed by the two-latch device.
A key cylinder connected to the first latch device and the second latch device and an open handle connected to the first latch device are provided, and when the key cylinder is rotated to one side, a lock mechanism of the first latch device is provided. A latch device for a hatched vehicle back door that unlocks and allows the second latch device to release when rotated to the other side and that can release the unlocked first latch device when the open handle is operated. .
Japanese Patent Application Laid-Open No. 1-223284 discloses that a glass hatch is attached to a part of a back door that is hingedly attached to a rear portion of a vehicle body, and the back door is associated with a first striker fixed to the vehicle body. The first latch device is held in a closed state with respect to the vehicle body, and the glass hatch is held in a closed state with respect to the back door by a second latch device engaging with a second striker fixed to the glass hatch. The back door 2 is provided with a manually operated open handle, a push button, and a key cylinder, and the open handle releases the first latch device from the first striker. Connected to release means, the push button being connected to second release means for releasing the second latch device from the second striker. And the key cylinder has been described for latching device for a vehicle back door with hatch connected to the lock mechanism of the first latch device and the second latching device.

[0003]

Among the known examples described above, the one disclosed in Japanese Patent Application No. Sho 62-117258, which uses a key cylinder as a switch to operate a power door opening device, is disclosed. Since the key cylinder itself serves as a lock mechanism, the first latch device or the second latch device is not provided with a lock mechanism. But,
Without the lock mechanism, it is not possible to provide a means for manually releasing the first latch device or the second latch device without using a key. In Japanese Patent Publication No. 4-37910, a lock mechanism is provided in the first latch device, but there is no description of power for switching the lock mechanism between a locked state and an unlocked state.
Japanese Unexamined Patent Publication No. 1-223284 also does not describe the power for the lock mechanism.

[0004]

SUMMARY OF THE INVENTION Accordingly, the present invention provides a back door 2 attached to a rear portion of a vehicle body 1 by a hinge so as to be openable and closable.
A glass hatch 3 is attached to a part of the glass hatch, and the back door 2 is held in a closed state with respect to the vehicle body 1 by a first latch device 5 which engages with a first striker 23 fixed to the vehicle body 1, and the glass hatch 3 Reference numeral 3 denotes the glass hatch 3 or the second latch device 4 which is engaged with the second striker 11 fixed to the back door 2, and is held in a closed state with respect to the back door 2 by the second latch device 4. A power door device 31 having a motor is provided, and the power door device 31 is connected to the first latch device 5 and the first striker 23.
When the power door device 31 is operated in one direction, the first release means for releasing from the second latch means 4 and the second release means for releasing the second latch device 4 from the second striker 11 are associated with each other. When only one latch device 5 is released and the back door 2 is opened, and the power door device 31 is operated in the other direction, the second latch device 4 is opened.
Only, the glass hatch 3 is opened to open the door, and the first latch device 5 enables the lock state and the operation of the first release means that disable the operation of the first release means. A lock mechanism for switching to an unlocked state is provided, and a frame 17 of the first latch device 5 is a latch device for a hatched vehicle back door in which an actuator 18 for switching the lock mechanism between a locked state and an unlocked state is fixed. It is.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to the drawings.
Reference numeral 1 denotes a vehicle body, and 2 denotes a back door which is attached to a rear portion of the vehicle body 1 by a hinge. The back door 2 is provided with a hatch 3. Normally, the back door 2 is made of metal and the hatch 3 is made of glass. The glass hatch 3 is attached to the back door 2 by a hinge so that it can be opened and closed.
Can be attached to the vehicle body 1 by a hinge so as to be freely opened and closed.

In FIG. 4, reference numeral 5 denotes a first latch device provided on the lower edge of the back door 2, and the first latch device 5 engages with a first striker 23 fixed to the vehicle body 1,
The back door 2 is kept closed. 4 is the backdoor 2
The second latch device 4 is engaged with a second striker 11 provided on the lower edge of the glass hatch 3 to hold the glass hatch 3 in a closed state. The second latch device 4 may be attached to the lower edge of the glass hatch 3, and the second striker 11 may be attached to the upper edge of the back door 2. 7 is a key cylinder, 38 is an open handle, 31 is the first latch device 5 and the second latch device 4
Are opened from the strikers 23 and 11, respectively. In the present invention, as described below, the first latch device 5 is provided with a well-known lock mechanism that switches between a locked state and an unlocked state, but the second latch device 4 is configured without a lock mechanism. .

Referring to FIG. 5, the connection of each part will be described first. One end of a rod 10 is connected to a lock lever 9 for switching a lock mechanism of the first latch device 5 between a locked state and an unlocked state. The release lever 6 for releasing the second latch device 4 from the striker 11 includes:
One end of a rod 8 is connected, and the other end of each rod 8, 10 is connected to a key lever 41 which rotates integrally with the key cylinder 7.
Connect to In the present invention, when the key cylinder 7 is primarily rotated to the left by a key operation, the second latch device 4 is disengaged from the second striker 11 so that the glass hatch 3 can be opened and rotated to the right. And the lock mechanism of the first latch device 5 can be switched to the locked state. However, the relationship between the key cylinder 7 and the first latch device 5 and the second latch device 4 can be freely set and changed depending on the manner in which the rods 8, 10 and the key cylinder 7 are connected. For example, as shown in FIG. You will be able to do various things.

A rod 35 leading to the release lever 6 and a wire cable 37 leading to the open lever 20 for releasing the first latch device 5 from the first striker 23 are connected to the power door device 31, The open handle 38 is connected in the middle of the cable 37, and when the rod 35 is pulled by the power door device 31, the second latch device 4 is released and the wire cable 37 is released.
Is pulled, the first latch device 5 is released. The release of the first latch device 5 can also be performed by the open handle 38.

Next, details of each section will be described. As shown in FIG. 6, the second latch device 4 includes a latch 12 that rotates by engaging with a second striker 11 fixed to the back door 2 side, and a latch 12 that engages with the latch 12. It comprises a ratchet 13 for preventing reverse rotation and the release lever 6 for releasing the ratchet 13 from the latch 12. The release lever 6 is connected to the second latch device 4.
(When the second latch device 4 is mounted on the glass hatch 3, the release lever 6 is pivotally supported on the side of the back door 2) to reach the key cylinder 7. The end of the rod 8 is bent at a right angle and locked in an arc-shaped long hole 16 centered on the shaft 15 of the release lever 6. In FIG. 6, when the rod 8 moves to the left, the release lever 6 rotates clockwise. The ratchet 13 is configured to be detached from the latch 12. When the rod 8 moves to the right, the release lever 6 does not rotate because it is swung by the slot 16. The end of the rod 35 reaching the power door device 31 is locked to the release lever 6 without lost motion.

The overall view of the first latch device 5 is shown in FIG.
FIG. 9 shows the frame 17 of the first latch device 5.
In FIG. 11, a latch 24 that rotates by engaging with the first striker 23 fixed to the vehicle body 1 and a ratchet 25 that engages with the latch 24 and prevents the latch 24 from rotating in the reverse direction are pivotally supported. . The projecting piece 43 of the frame 17 has a shaft 26
As a result, the ratchet lever 22 (FIG. 13) and the open lever 20 (FIG. 12) are pivotally supported. The ratchet lever 22 and the open lever 20 are connected via the lock mechanism, and when the lock mechanism is in an unlocked state,
When the open lever 20 is pulled by the wire cable 37 and rotates clockwise in FIG. 8, the ratchet lever 22 also rotates clockwise and the ratchet 25 is latched.
4, the first latch device 5 is released from the first striker 23, and the back door 2 is opened.

The lock mechanism includes the lock lever 9
(FIG. 14) and a lock link 21 pivotally supported at one end of the lock lever 9, and a central portion of the lock lever 9 is fixed to an output shaft 19 of an actuator 18 fixed to the frame 17. An engagement pin 29 is provided at the tip of the lock link 21.

The open lever 20 has a groove portion 44 formed of an arcuate vibration groove 27 having an arc centered on the shaft 26 and an engaging groove 28 extending in the radial direction of the shaft 26. The ratchet lever 22 has An elongated hole 30 overlapping with the engaging groove 28 is formed, and the engaging pin 29 is slidably engaged with the groove 44 and the elongated hole 30. Engagement pin 2
9 slides in the elongated hole 30 by the rotation of the lock lever 9, and when the lock lever 9 is located at the outer end of the elongated hole 30, the unlocked position is engaged with the engaging groove 28, and the rotation of the open lever 20 The lever 22 is transmitted to the lever 22, but when located at the inner end of the elongated hole 30, the lock position is established, and
Open lever 2
The rotation of 0 is not transmitted to the ratchet lever 22.

The first latch device 5 includes the latch 2
4 is provided with a switch 48 which is turned on when engaged with the first striker 23, and when the switch 48 is turned on, the actuator 18 is operated and the lock lever 9 is turned on.
Is rotated to displace the engagement pin 29 to the lock position.

The power opening mechanism 31 is an actuator having a built-in motor and a speed reduction mechanism.
2, the central part of the power lever 33 is fixed. At both ends of the power lever 33, elongated holes 34, 36 centered on the output shaft 32 are formed, and one end of the rod 35 reaching the release lever 6 is locked in one elongated hole 34. In the other long hole 36, the end of the wire cable 37 reaching the open lever 20 of the first latch device 5 is locked.

As shown in FIG. 16, an intermediate lever 39 which is rotated by the opening operation of the open handle 38 is attached to the open handle 38, and an engagement piece 45 is formed at an end of the intermediate lever 39. A through hole 40 is provided at the center of the piece 45.
To form The wire cable 37 is inserted into the through hole 40.
Through. An engagement ball 46 is fixed to the wire cable 37 near the engagement piece 45. When the wire cable 37 is pulled by the power door mechanism 31, the engaging ball 46 moves in a direction away from the engaging piece 45 and the intermediate lever 39 is not rotated, and The open lever 20 of the latch device 5 is rotated. However, when the intermediate lever 39 is rotated by the open handle 38, the engagement piece 45 comes into contact with the engagement ball 46, moves the wire cable 37, and rotates the open lever 20. Reference numeral 47 denotes a switch for detecting the rotation of the intermediate lever 39. When the switch 47 is turned on, the power door device 31 is configured to operate in a direction to pull the wire cable 37. Thereby, when the open handle 38 is manually operated, it is not necessary to pull the wire cable 37 by a manual force, so that the operational feeling is improved.

[0016]

When the key cylinder 7 and the first latch device 5 and the second latch device 4 are in the relationship shown in FIG.
The rod 8 moves via the key lever 41, the release lever 6 of the second latch device 4 is turned to the right in FIG. 6, the ratchet 13 is disengaged from the latch 12, and the glass hatch 3 is opened. The left rod 41 also moves another rod 10 to rotate the lock lever 9 to move the engagement pin 29 of the lock link 21 to the unlock position indicated by the solid line in FIG. 8 to unlock the first latch device. To Conversely, when the key cylinder 7 is turned to the right, the lock lever 9 is turned to the left in FIG. While facing the groove 27, the first latch device is locked, but the release lever 6 does not rotate due to lost motion due to the long hole 16.

In addition to the above operation, by changing the shape of the key lever 41 and providing a lost motion at the connecting portion between the key lever 41 and the rods 8 and 10, FIG.
As described above, various operations can be performed with one key cylinder 7, and these can be easily changed according to the purpose of use.

Next, when the power opening mechanism 31 is energized and the power lever 33 is turned to the left in FIG. 5, the rod 35 engaged with the long hole 34 at one end moves, and the glass hatch 3 is closed. The release lever 6 of the second latch device 4 is turned to the right in FIG. 6, the ratchet 13 is released from the latch 12, and the glass hatch 3 is opened. However, since the wire cable 37 locked in the long hole 36 at the other end does not move due to lost motion, the first latch device 5 is not released.

On the other hand, when the power lever 33 is turned to the right, the rod 35 engaged with the elongated hole 34 at one end is idle and the wire cable 3 locked at the elongated hole 36 at the other end is used.
7 is pulled, and the open lever 20 turns right in FIG. At this time, when the engagement pin 29 is at the unlock position indicated by the solid line, the rotation of the open lever 20 is controlled by the ratchet lever 2 via the engagement pin 29.
2 and the ratchet 25 engaged with the latch 24
Is released, the latch 24 is released, and the back door 2 is opened. At this time, the engagement ball 46 fixed to the wire cable 37 only moves in the direction away from the engagement piece 45 of the intermediate lever 39, so that the intermediate lever 3
9 does not rotate.

Next, when the open handle 38 provided on the back door 2 is opened, the intermediate lever 39 turns right in FIG. 16 and the engaging piece 45 of the intermediate lever 39 engages with the engaging ball fixed to the wire cable 37. The wire cable 37 is moved upward by contacting the wire 46. As a result, when the open lever 20 rotates and is in the unlocked state, the back door 2 is opened as described above.

A switch 4 is provided near the intermediate lever 39.
7, when the switch 47 detects the rotation of the intermediate lever 39, the power door device 31 is operated to pull the wire cable 37, so that the open handle 38 can be operated only lightly. In addition, the first latch device 5 can be released by power, and the operational feeling can be improved with a simple configuration. With such a configuration using the switch 47, it is difficult to completely prevent the malfunction of the switch 47. However, even if the switch 47 malfunctions, the intermediate lever 38 of the open handle 38 does not open the power door. Since the wire cable 37 from the device 31 to the first latch device 5 is connected, the manual release of the first latch device 5 can be reliably performed by the open handle 38.

Next, when the actuator 18 is energized to rotate the output shaft 19, the lock lever 9 is fixed to the output shaft 19 and rotates in either direction. Is displaced by power between the unlocked position indicated by the solid line and the locked position indicated by the provisional line.

A switch 48 for detecting when the back door 2 is closed by the first latch device 5 is provided. When the switch is turned on, the actuator 18 is turned on.
Is operated to the lock side, it is possible to prevent forgetting to lock the first latch device 5 when the back door 2 is closed.

The switch 48 can be used to detect the opening of the back door 2 so that the back door 2 can be detected.
If the glass hatch 3 cannot be opened by the power door device 31 when the door is opened, an operation switch of the power door device 31 is erroneously provided (this switch is provided near the driver's seat in the vehicle). Is operated, the glass hatch 3 does not open, so that the glass hatch 3 can be prevented from being damaged.

[0025]

As described above, according to the present invention, the glass hatch 3 is attached to a part of the back door 2 which is attached to the rear of the vehicle body 1 by hinges so as to be openable and closable, and the back door 2 is fixed to the vehicle body 1. The first latch device 5 engaged with the first striker 23 holds the door closed with respect to the vehicle body 1, and the glass hatch 3 engages with the second striker 11 fixed to the glass hatch 3 or the back door 2. The back door 2 is held in a closed state by the second latch device 4 to be closed, and the back door 2 is provided with a power opening device 31 having a motor, and the power opening device 31 is connected to the first door. First release means (open lever 20) for releasing the latch device 5 from the first striker 23 and second release means for releasing the second latch device 4 from the second striker 11 When the power door opening device 31 is operated in one direction, only the first latch device 5 is released, the back door 2 is opened, and the power door opening device is connected. When the user operates 31 in the other direction, only the second latch device 4 is released so that the glass hatch 3 is opened, and the first latch device 5 disables the operation of the first release means. An actuator 18 is provided on the frame 17 of the first latch device 5 for switching the lock mechanism between the locked state and the unlocked state. Is fixed to the latch device of the hatched vehicle back door, so that the locking mechanism of the first latch device 5 is the actuator 1
Since the state can be switched between the locked state and the unlocked state in step 8, lock / unlock can be performed without a key. The present invention also provides a latch device for a hatched vehicle back door, wherein the back door 2 is provided with an open handle 38 which is connected to the first releasing means of the first latch device 5 and is manually operated. Therefore, the first latch device 5 can be released by a manual operation. Also, the present invention
In the device, the back door 2 is provided with a key cylinder 7 capable of operating the second release means of the second latch device 4, and the key cylinder 7 is rotated in one direction to release the second release means. When the key cylinder 7 is deflected in both directions, both the back door 2 and the glass hatch 3 can be used. Will not open. The present invention also relates to the device, wherein the back door 2 or the vehicle body 1
A switch 48 for detecting the closing of the back door 2 is provided at a desired position of the back door 2.
When the closed door is detected, the lock mechanism is switched to the locked state by the actuator 18 so that the latch device of the hatched vehicle back door is configured. Therefore, forgetting to lock the first latch device 5 when the back door 2 is closed can be prevented. . Further, in the present invention, in the apparatus, a switch 48 capable of detecting the closing of the back door 2 is provided at a desired position of the back door 2 or the vehicle body 1, and the switch 48 does not detect the closing of the back door 2. In this case, since the hatched vehicle back door is a latch device for preventing the second latch device from being released by the power door device 31, when the back door 2 is open, the power door is erroneously opened. Even if the operation switch of the device 31 is operated,
The glass hatch 3 does not open, and damage to the glass hatch 3 can be prevented.

[Brief description of the drawings]

FIG. 1 is a diagram of a known example.

FIG. 2 is a diagram of a known example.

FIG. 3 is a side view of the back door of the present application.

FIG. 4 is a schematic view of a back door and a glass hatch of the present application.

FIG. 5 is a schematic diagram showing a connection relationship of each part.

FIG. 6 is a sectional view of a second latch device.

FIG. 7 is a front view of the latch and the ratchet.

FIG. 8 is a front view of the first latch device.

FIG. 9 is a rear view of the first latch device.

FIG. 10 is an external view of an actuator of the first latch device.

FIG. 11 is an external view of a frame of the first latch device.

FIG. 12 is a plan view of an open lever.

FIG. 13 is a plan view of a ratchet lever.

FIG. 14 is a plan view of a lock lever and a lock link.

FIG. 15 is a plan view of a power door device.

FIG. 16 is a front view of the open handle.

FIG. 17 is a table showing a connection relationship between a key cylinder, a first latch device, and a second latch device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Body, 2 ... Back door, 3 ... Glass hatch, 4 ... Second latch device, 5 ... First latch device, 6 ... Release lever,
7 ... key cylinder, 8 ... rod, 9 ... lock lever, 1
0: rod, 11: second striker, 12: latch, 1
3 Ratchet, 14 Frame, 15 Shaft, 16 Slot, 17 Frame, 18 Actuator, 19 Output shaft, 20 Open lever, 21 Lock link, 2
2 ... Ratchet lever, 23 ... First striker, 24 ...
Latch, 25 ... Ratchet, 26 ... Shaft, 27 ... Empty vibration groove,
28 ... engagement groove, 29 ... engagement pin, 30 ... long hole, 31 ... power door opening device, 32 ... output shaft, 33 ... power lever, 34 ...
Long hole, 35 ... Rod, 36 ... Long hole, 37 ... Wire cable, 38 ... Open handle, 39 ... Middle lever, 4
0 ... Through-hole, 41 ... Key lever, 42 ... Projection piece, 43 ... Projection piece, 44 ... Groove, 45 ... Engagement piece, 46 ... Engagement ball, 47 ...
Switch, 48 ... Switch.

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[Procedure amendment]

[Submission date] March 3, 1997

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] Fig. 4

[Correction method] Change

[Correction contents]

FIG. 4

[Procedure amendment 2]

[Document name to be amended] Drawing

[Correction target item name] Fig. 5

[Correction method] Change

[Correction contents]

FIG. 5

[Procedure amendment 3]

[Document name to be amended] Drawing

[Correction target item name] FIG.

[Correction method] Change

[Correction contents]

FIG. 16

Claims (5)

[Claims] 1. A glass hatch 3 is attached to a part of a back door 2 which is attached to a rear portion of a vehicle body 1 by a hinge so as to be openable and closable.
The back door 2 is held in a closed state with respect to the vehicle body 1 by a first latch device 5 that engages with a first striker 23 fixed to the vehicle body 1, and the glass hatch 3 is the glass hatch 3 or the back door. The back door 2 is held in a closed state by a second latch device 4 that engages with a second striker 11 fixed to the back door 2. The back door 2 is provided with a power opening device 31 having a motor. The first opening means for releasing the first latch device 5 from the first striker 23 and the second release means for releasing the second latch device 4 from the second striker 11 respectively. When the power door opening device 31 is operated in one direction, only the first latch device 5 is released, the back door 2 is opened, and the power door is opened. When the device 31 is operated in the other direction, only the second latch device 4 is released so that the glass hatch 3 is opened, and the first latch device 5 disables the operation of the first release means. An actuator for switching the lock mechanism between a locked state and an unlocked state on a frame 17 of the first latch device 5; A latch device for a hatched vehicle back door to which the fixing 18 is fixed. 2. A latch device for a hatched vehicle back door according to claim 1, wherein said back door 2 is provided with an open handle 38 which is connected to said first release means of said first latch device 5 and is manually operated. . 3. The back door 2 according to claim 1, wherein the back door 2 is provided with a key cylinder 7 capable of operating the second release means of the second latch device 4, and the key cylinder 7 is moved in one direction. A latch device for a hatched vehicle back door, wherein the latch mechanism is switched to a locked state when the second release means is actuated when rotated in the other direction and when rotated in the other direction. 4. A switch 48 according to claim 1, wherein a switch for detecting that the back door 2 is closed at a desired position of the back door 2 or the vehicle body 1.
A hatch vehicle backdoor latch device configured to switch the lock mechanism to a locked state by the actuator 18 when the switch 48 detects that the back door 2 is closed. 5. The switch 48 according to claim 1, wherein a switch capable of detecting that the back door 2 is closed at a desired position of the back door 2 or the vehicle body 1.
A hatch vehicle backdoor latch device in which the second latch device cannot be released by the power door device 31 when the switch 48 has not detected that the back door 2 is closed.