JP3574538B2 - Automotive door closure device - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention is capable of pivoting between an open position where the striker is completely disengaged from the striker when the door is opened, a half-latch position where the striker is slightly engaged with the half-closed door, and a full latch position where the striker is completely engaged with the fully closed door. The present invention relates to a closure device for an automobile door in which a latch member is supported by a lock body, and the latch member is forcibly rotated from the half latch position to the full latch position by power.
[0002]
[Prior art]
DESCRIPTION OF RELATED ART Conventionally, as a closure device of a door for motor vehicles, there exists the thing described in the specification attached to the application of Japanese Patent Application No. 6-178609 previously proposed by the present applicant. That is, when foreign matter is caught in the gap between the back door and the peripheral edge of the door opening while the close lever is rotating from the half latch position to the full latch position by power, the open lever To release the locking lever from the latch member, and the connecting member connected to the release lever slides the close lever to disengage from the latch pin and stop the forced closing operation of the back door, thereby ensuring safety. In addition to ensuring the performance, an excessive load is applied to the drive unit.
[0003]
[Problems to be solved by the invention]
However, in the above-described conventional technology, the reason for stopping the forced closing operation of the back door is that since the connecting member slides the closing lever, a relatively large force is required for the sliding operation, and the back door may be opened. Although it is possible, the operation becomes heavy, and improvement in operability has been desired.
Therefore, the present invention has been made by paying attention to such an improvement of the conventional technology, and a cancel lever is movably supported on the power transmission path between the push lever and the close lever, and the release lever is used. If the cancel lever is retracted from the power transmission path, power is not transmitted to the close lever, so that the forced closing operation of the door is stopped. For example, an operation such as directly driving the close lever is not performed. It is an object of the present invention to provide a closure device for an automobile door, which can be operated without heavy operation and can improve operability.
[0004]
[Means for Solving the Problems]
The gist of the present invention for achieving such an object lies in the matters described in the following items.
[1] The open position where the striker (17) is completely disengaged when the door is opened, the half latch position where the striker (17) is slightly engaged when the door is partially closed, and the striker (17) is completely engaged when the door is fully closed. The latch member (30) is supported by the lock body (21) so as to be rotatable to the full latch position, and the latch member (30) is forcibly rotated from the half latch position to the full latch position by power to forcefully In a closure device for an automobile door, the door is closed at
A locking plate (40) capable of swinging between a restraining position for restraining the latch member (30) from rotating in a half-latch position and a full latch position and a restraining release position for releasing the restraint;
An open lever (85) for swinging the locking plate (40) from the restrained position to the restrained release position in conjunction with a door handle;
A release lever (88) swinging from an inoperative position to an operating position in conjunction with the open lever (85);
A closing lever (50) for pushing the latch member (30) when power is transmitted to forcibly rotate the latch member (30) from the half latch position to the full latch position;
A push lever (60) rotatably supported coaxially with the close lever (50) about a shaft (28) on the lock body (21) side and transmitting power to the close lever (50); ,
The push lever is movable as a whole together with the push lever (60), and is pivotally movable between a forward position where the push lever (60) advances on a power transmission path from the push lever (60) to the close lever (50) and a retracted position where the push lever is retracted. The release lever (88) is supported by a lever (60) and swings from the advance position to the retreat position when the release lever (88) swings from the non-operation position to the operation position in conjunction with the open lever (85). And a cancel lever (100) for disabling transmission of the power to the close lever (50).
[0005]
[2] An open position where the striker (17) is completely disengaged when the door is opened, a half latch position where the striker (17) is slightly engaged when the door is half closed, and a complete engagement with the striker (17) when the door is fully closed. The latch member (30) is supported by the lock body (21) so as to be rotatable to the full latch position, and the latch member (30) is forcibly rotated from the half latch position to the full latch position by power to forcefully In a closure device for an automobile door, the door is closed at
A locking plate (40) capable of swinging between a restraining position for restraining the latch member (30) from rotating in a half-latch position and a full latch position and a restraining release position for releasing the restraint;
An open lever (85) for swinging the locking plate (40) from the restrained position to the restrained release position in conjunction with a door handle;
A release lever (88) swinging from an inoperative position to an operating position in conjunction with the open lever (85);
A closing lever (50) for pushing the latch member (30) when power is transmitted to forcibly rotate the latch member (30) from the half latch position to the full latch position;
A push lever (60) rotatably supported coaxially with the close lever (50) about a shaft (28) on the lock body (21) side and transmitting power to the close lever (50); ,
A direction generally movable with the push lever (60) as a whole, and in a direction substantially perpendicular to a forward position advanced from a direction substantially perpendicular to a power transmission direction from the push lever (60) to the close lever (50). The release lever (88) pivots from the non-operation position to the operation position in conjunction with the open lever (85) so as to be rotatable to a retreat position retracted to the open position. And a cancel lever (100) for turning the power from the forward position to the retreat position to disable transmission of the power to the close lever (50). .
[0006]
Next, the operation of the invention described in each of the above items will be described.
In the automobile door closure device according to the above [1],
When the door (15) is closed and the latch member (30) is in the half-latch position, the closing lever (50) pushes the latch member (30) by power and the latch member (30) is moved from the half-latch position to the full-latch position. Rotate. The door (15) is forcibly closed.
[0007]
When the door (15) is forcibly closed, for example, when a foreign object is caught between the door (15) and the periphery of the door opening (12), an excessive load is imposed on the components of the drive unit as it is. When the door handle is operated, the open lever (85) interlocks, the release lever (88) swings from the non-operation position to the operation position, and the cancel lever (100) moves backward from the forward position. The power transmission path from the push lever (60) to the close lever (50) is cut off, and the close lever (50) does not push the latch member (30). For example, the close lever (50) is pressed by an urging force. Is separated from the latch member (30), the latch member (30) returns to the half-latch position, and no excessive load is applied to the components of the drive unit, and the components are damaged. It is possible to prevent.
[0008]
Since the cancel lever (100) may be retracted from the power transmission path instead of directly operating the close lever (50), the operation is not heavy and operability can be improved.
On the other hand, when the open lever (85) is actuated, the sub-lever (80) is interlocked, the locking plate (40) swings to the release position, and the latch member (30) returns to the open position. In addition, it is possible to prevent damage to the components of the driving unit.
[0009]
[2] In the automobile door closure device according to the item [2],
Similarly, when the door handle is operated, the open lever (85) interlocks, the release lever (88) swings from the non-operation position to the operation position, and the cancel lever (100) retreats from the forward position to the retreat position. The power transmission path from the push lever (60) to the close lever (50) is cut off.
At this time, the frictional resistance between the cancel lever (100) and one of the push lever (60) or the close lever (50), which is the rotation supporting side of the cancel lever (100), is, for example, the rotation center around the pivot. When the retract lever 100 is retracted against the frictional resistance, the operation does not become heavy due to the frictional resistance.
[0010]
In addition, the frictional resistance between the cancel lever (100) and the other of the push lever (60) and the close lever (50) is determined by the power of the cancel lever (100) from the push lever (60) to the close lever (50). Since the retract lever is retracted in a direction substantially perpendicular to the transmission direction, the retract lever is relatively small.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
Each drawing shows an embodiment of the present invention.
As shown in FIGS. 1 to 4, a rear opening 12 is opened in a vehicle body 10 of an automobile, and a back door 15 for opening and closing the rear opening 12 is provided. A striker 17 is fixed to the lower edge of the rear opening 12, and a door lock device 20 is provided to the back door 15. A latch member 30 is pivotally attached to the lock body 21 of the door lock device 20 by a shaft 23, and the latch member 30 is formed with an engagement groove 32 that can be engaged with and disengaged from the striker 17.
[0012]
A locking plate 40 is pivotally attached to the lock body 21 by a shaft 26 so as to swing between a restrained position and a restrained release position. The locking plate 40 has a claw portion 42 that can be engaged with and disengaged from the half latch engagement portion 33 or the full latch engagement portion 34 formed on the latch member 30. In the restrained position, the claw portion 42 engages with the half latch engagement portion 33 or the full latch engagement portion 34, thereby preventing the latch member 30 from rotating toward the open position.
[0013]
The locking plate 40 is urged by a spring member (not shown) in a direction in which the claw portion 42 of the locking plate 40 is engaged with the half-latch engagement portion 33 or the full-latch engagement portion 34 of the latch member 30. Reference numeral 30 is also urged toward the open position by a spring member not shown.
An open lever 85 interlocking with the door handle is supported on the lock body 21 by the shaft 27. In the unlocking position, the pressed portion 43 of the locking plate 40 is pushed into the open lever 85 so that the locking plate 40 can swing to the restraint release position against the urging force, and is pressed by the locking plate 40 in the locked position. A sub-lever 80 passing near the portion 43 is connected. A lock / unlock lever 86 for displacing the sub-lever 80 between a lock position and an unlock position by a key operation is supported on the lock body 21 by the shaft 27.
[0014]
FIGS. 6 and 7 show the latch member 30 in the open position disengaged from the striker 17, and in which the striker 17 is slightly engaged with the engagement groove 32 and the claw portion 42 of the locking plate 40 is engaged with the half latch engagement portion 33. 9 and the full latch position shown in FIG. 5 in which the striker 17 is completely engaged with the engagement groove 32 and the claw portion 42 of the locking plate 40 is engaged with the full latch engagement portion 34. It is supported by.
A switch lever 38 is integrally fixed to the latch member 30, and a pushed pin 35 is implanted in the switch lever 38. A detection switch 36 for detecting that the latch member 30 has rotated to the half-latch position via the switch lever 38 is provided.
[0015]
A closing lever 50 for pushing the latch member 30 from the half latch position to the full latch position and further to the overtravel position shown in FIGS. It is pivotally connected. The closing lever 50 is urged clockwise in FIG. 1 (in a direction away from the pushed pin 35) by the tension spring member 51. The closing lever 50 has one end 52 extending from the shaft 28 toward the pushed pin 35 and the other end 53 extending in a direction opposite to the pushed pin 35. A push lever 60 for forcibly rotating the latch member 30 from the half-latch position to the full-latch position to the over-travel position via the close lever 50 by a power unit 70 to be described later is also provided on the lock body 21 by the shaft 28. It is rotatably supported. The push lever 60 is urged clockwise in FIG. 1 by a winding spring 61 wound around the shaft 28. The push lever 60 is formed with one end 65 and the other end 66 extending in the opposite directions from the shaft 28 as a starting point.
[0016]
As shown in FIGS. 1 to 3, a base member 71 that supports a power unit 70 is connected to the lock body 21, and the power unit 70 includes a motor 72, a reduction mechanism 73, and an output pinion 74.
A sector gear 91 is rotatably supported by a shaft 98 on the base member 71. On the outer peripheral edge of the sector gear 91, a tooth portion 92 meshing with the output pinion 74 is provided continuously. An input flange 95 is formed on the sector gear 91 so as to face one end 65 of the push lever 60.
[0017]
On the other end 66 of the push lever 60, a cancel lever 100 is pivotally supported by a shaft 101 between a forward position and a retracted position. A deformed pin 105 having a substantially semicircular cross section is implanted in the cancel lever 100. The cancel lever 100 is urged in a counterclockwise direction in FIG. 1 by a winding spring 102 wound around a shaft 101. When the cancel lever 100 swings to the forward position, the deformed pin 105 advances from a direction orthogonal to the power transmission direction (the direction in which the deformed pin 105 pushes the other end 53 of the close lever 50), and swings to the retracted position. Then, it retreats in the orthogonal direction.
[0018]
The open lever 85 is connected to a release lever 88 for swinging from the inoperative position to the operating position, pushing the swing end 106 of the cancel lever 100 to retract the cancel lever 100 to the retracted position. An interlocking lever 89 interlocking with the locking / unlocking lever 86 is pivotally supported on the lock body 21. The interlocking lever 89 allows the pressing end 88a of the release lever 88 to pass through the vicinity of the swing end 106 without being brought into contact with the swing end 106 of the cancel lever 100 by a key operation.
[0019]
Next, the operation will be described.
In the door open state where the latch member 30 is in the open position, the back door is closed, and the latch member 30 slightly exceeds the half-latch position (the position shown in FIGS. 6 and 9) (the position shown in FIG. 7). , The switch lever 38 contacts the detection switch 36 with the switch piece, the detection switch 36 detects that the latch member 30 is at the half-latch position, and the motor 72 starts.
[0020]
When the motor 72 starts, the output pinion 74 rotates through the speed reduction mechanism 73, the tooth portion 92 meshing with the output pinion 74 is fed, and the sector gear 91 rotates counterclockwise in FIG. 7 pushes one end 65 of the push lever 60, and the push lever 60 rotates counterclockwise in FIG. 7 against the urging force of the winding spring 61.
At this time, the cancel lever 100 is in the forward position, swings counterclockwise in FIG. 7, the deformed pin 105 pushes the other end 53 of the close lever 50, and the close lever 50 pushes the urging force of the tension spring member 51. And the one end 52 of the close lever 50 pushes the pin 35 to be pushed. Thereby, the latch member 30 rotates clockwise in FIG. 7, and the latch member 30 pulls in the striker 17.
[0021]
Further, when the motor 72 rotates, the sector gear 91 rotates, the input flange 95 pulls in the one end 65, and the closing lever 50 rotates counterclockwise via the deformed pin 105 of the cancel lever 100. As a result, the close lever 50 further pushes the pin 35 to be pushed, the latch member 30 rotates to the full latch position, the claw portion 42 of the locking plate 40 engages with the full latch engagement portion 34, and the latch member Numeral 30 is non-rotatably restrained at the full latch position.
When the latch member 30 further rotates from the full latch position to the overtravel position (the position shown in FIGS. 8 and 10), the detection switch 37 detects the rotation, the motor 72 stops, and the pushed pin 35 is pushed in. And the latch member 30 returns to the full latch position by the urging force.
[0022]
As shown in FIG. 7, when the close lever 50 is forcibly rotating the latch member 30 from the half latch position to the full latch position, a gap between the lower edge of the back door 15 and the peripheral edge of the rear opening 12 is provided. When an object or the like is caught in the door, for example, a door handle (not shown) may be operated.
When the door handle is operated, the open lever 85 rotates counterclockwise in FIG. Thereby, the release lever 88 is pushed to the left and the sub lever 80 is pushed to the right in FIG.
[0023]
When the release lever 88 is pushed to the left, the pushing end of the release lever 88 pushes the swinging end 106 of the cancel lever 100, the cancel lever 100 swings from the forward position to the retracted position, and the deformed pin 105 moves to the other end. Retreat in the direction perpendicular to the direction in which 53 is pushed. When the cancel lever 100 swings from the forward position to the retracted position, the deformed pin 105 receives frictional resistance from the other end 53, and the lower hole edge of the cancel lever 100 receives frictional resistance from the shaft 101. The location where the frictional resistance of the lower hole edge of the lower hole 100 occurs is very close to the center of the swing, so that the canceling lever 100 does not have a large resistance when swinging. Since the retract lever is retracted in the orthogonal direction, the other end portion 53 is not pushed in, so that there is no large resistance when the cancel lever 100 swings.
[0024]
When the cancel lever 100 swings from the forward position to the backward position, the power from the push lever 60 is not transmitted to the close lever 50, and the pushed pin 35 is not pushed. When the sub-lever 80 is pushed to the right, the sub-lever 80 pushes the pressed portion 43 of the locking plate 40, and the locking plate 40 swings from the restrained position to the restrained release position against the urging force. The claw portion 42 is retracted from a position where it can be engaged with the half latch engagement portion 33 of the latch member 30.
[0025]
Thereby, the latch member 30 is rotated from the half-latch position to the open position by the urging force, and as described above, the resistance when the cancel lever 100 swings is small, so that the operation force is not heavy, and the closing lever 50 and other components are not used. Of the power unit can be prevented from being damaged.
[0026]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to the closure apparatus of the automobile door concerning this invention, a cancel lever is supported so that advance and retreat is possible on a power transmission path between a push lever and a close lever, and a cancel lever is retracted from the power transmission path by a release lever. In this case, power is not transmitted to the closing lever, and the forced closing operation of the door is stopped.For example, it is not necessary to perform an operation such as directly driving the closing lever. Can be improved.
[Brief description of the drawings]
FIG. 1 is a front view of a main part of a closure device for an automobile door according to an embodiment of the present invention.
FIG. 2 is a side view of a main part of the vehicle door according to the embodiment of the present invention with a closure device attached thereto.
FIG. 3 is a plan view of an automobile door closure device according to an embodiment of the present invention.
FIG. 4 is a plan view of a main part of a closure device for an automobile door according to an embodiment of the present invention.
FIG. 5 is an operation explanatory view of a closure device for an automobile door according to an embodiment of the present invention.
FIG. 6 is an operation explanatory view of a closure device for an automobile door according to an embodiment of the present invention.
FIG. 7 is an operation explanatory view of a closure device for an automobile door according to an embodiment of the present invention.
FIG. 8 is an operation explanatory view of a closure device for an automobile door according to an embodiment of the present invention.
FIG. 9 is an operation explanatory view showing a main part extracted corresponding to FIG. 6;
FIG. 10 is an operation explanatory view showing a main part extracted corresponding to FIG. 8;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Body 15 ... Back door 17 ... Striker 20 ... Door lock device 21 ... Lock body 30 ... Latch member 40 ... Locking plate 50 ... Close lever 60 ... Push lever 70 ... Power unit 80 ... Sub lever 85 ... Open lever 88 ... Release lever 88a: Pushing end of release lever 89: Interlocking lever 91: Sector gear 100: Cancel lever 105: Deformed pin 106: Swing end of cancel lever

Claims (2)

The latch member is rotatably locked to an open position where the striker is completely disengaged from the striker when the door is opened, a half latch position where the striker is slightly engaged when the door is partially closed, and a full latch position where the striker is completely engaged when the door is fully closed. An automobile door closure device that is supported by the main body and forcibly rotates the latch member from the half latch position to the full latch position by power to forcefully close the door.
A locking plate capable of swinging between a restraining position for restraining the latch member from rotating at a half-latch position and a full-latch position and a restraining release position for releasing the restraint;
An open lever that allows the locking plate to swing from a restrained position to a restrained release position in conjunction with a door handle;
A release lever that swings from an inoperative position to an operating position in conjunction with the open lever;
A closing lever that pushes the latch member when power is transmitted, and forcibly rotates the latch member from the half latch position to the full latch position;
A push lever that is rotatably supported coaxially with the close lever about an axis on the lock body side and transmits power to the close lever;
The push lever is movable as a whole together with the push lever , is swingably supported by the push lever between a forward position that has advanced on a power transmission path from the push lever to the close lever and a retracted position that has retracted, and is supported by the open lever. A cancel lever that swings from the forward position to the retracted position when the release lever swings from the non-operating position to the operating position in conjunction with the release lever to disable transmission of the power to the close lever. A closure device for an automobile door. The latch member is rotatably locked to an open position where the striker is completely disengaged from the striker when the door is opened, a half latch position where the striker is slightly engaged when the door is partially closed, and a full latch position where the striker is completely engaged when the door is fully closed. An automobile door closure device that is supported by the main body and forcibly rotates the latch member from the half latch position to the full latch position by power to forcefully close the door.
A locking plate capable of swinging between a restraining position for restraining the latch member from rotating at a half-latch position and a full-latch position and a restraining release position for releasing the restraint;
An open lever that allows the locking plate to swing from a restrained position to a restrained release position in conjunction with a door handle;
A release lever that swings from an inoperative position to an operating position in conjunction with the open lever;
A closing lever that pushes the latch member when power is transmitted, and forcibly rotates the latch member from the half latch position to the full latch position;
A push lever that is rotatably supported coaxially with the close lever about an axis on the lock body side and transmits power to the close lever;
It is movable as a whole together with the push lever, and pivots between a forward position that has advanced from a direction substantially perpendicular to a power transmission direction from the push lever to the close lever and a retracted position that has retreated in the same substantially perpendicular direction. The release lever pivots from the non-operation position to the operation position in conjunction with the open lever to pivot from the advance position to the retreat position, and And a cancel lever for disabling transmission to the closing lever.

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