JP3921048B2 - Opening and closing body closing device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an opening / closing body closing device for driving an opening / closing body such as a trunk lid, a back door, or a hood of an automobile in a closing direction by a driving means.
[0002]
[Prior art]
Conventionally, this type of closure device connects and disconnects the first drive means for driving the trunk lid pivotally supported by the vehicle body at least in the closing direction, and the operating force transmission path between the trunk lid and the first drive means. An electromagnetic clutch, a lock means for restraining the trunk lid in the closed state, and a second drive means for driving the trunk lid from the fully closed position to the fully closed position when the lock means is engaged. (For example, see JP-A-1-163386).
[0003]
[Problems to be solved by the invention]
However, in the closing device as described above, the first drive means is connected to only one side of the trunk lid because of problems such as cost and mounting space. Therefore, as shown in FIG. The trunk lid (101) is deformed so that the left and right sides of the trunk lid (101) are displaced in the vertical direction at a position before the fully closed position where a reaction force (hereinafter referred to as a seal reaction force) due to the seal material provided in the opening acts.
[0004]
That is, when the trunk lid (101) is driven in the closing direction by the first driving means (102) to reach the fully closed position, and the locking means (103) is engaged with the striker (105) provided on the vehicle body side. The left side (101a) of the trunk lid (101) to which the first driving means (102) is connected is strongly pressed against the sealing material by the first driving means (102), but the first driving means (102) is connected. The right side (101b) of the trunk lid (101) that is not formed is deformed into a state of floating from the opening by an urging force such as a sealing material or gas stay.
[0005]
In this state, the trunk lid (101) is switched from the first drive means to the second drive means and is driven to the fully closed position, but before the second drive means (104) is operated, the electromagnetic clutch is It is necessary to stop the operation of the first driving means (102) by cutting.
[0006]
At this time, if the electromagnetic clutch is disconnected while the trunk lid (101) is deformed, the external force of the first drive means (102) acting on the left side (101a) of the trunk lid (101) is removed. The left side (101a) of the trunk lid (101a) is lifted in the direction of the arrow by the strain energy stored in the trunk lid (101) in combination with the seal reaction force and the gas stay biasing force. There is a problem that the quality is lost due to the occurrence of.
[0007]
In view of the above-described problems of the conventional technology, the present invention prevents the generation of abnormal noise when the opening / closing body is closed by the driving means, and improves the quality of the opening / closing body. The object is to provide a device.
[0008]
[Means for Solving the Problems]
According to the present invention, the above problem is solved as follows.
(1) that open to the pivoted closing member to the vehicle body, and driving means for driving the at least close direction by one drive, an electromagnetic clutch for connecting or disconnecting the operating force transmission path between the said drive means and said movable member A lock means for engaging the open / close body in a fully closed position and restraining the open / close body in the closed state; and a detecting means for detecting the engagement state of the lock means and generating a lock detection signal. In the closing device for the opening / closing body, the driving means operating in the closing direction in response to the generation of the lock detection signal of the detecting means is considered in consideration of the deformation amount of the opening / closing body due to the one-side drive in the opening direction . A control device is provided for controlling to disengage the electromagnetic clutch after the set return amount is reversed and stopped.
[0009]
(2) that open to the pivoted closing member to the body, connected to the first driving means for driving the at least close direction by one drive, the operation force transmission path between the first drive means and said movable member or cutting An electromagnetic clutch that engages at a position before the fully closed position of the opening and closing body, and a lock means that restrains the opening and closing body to a closed state, and a second drive that drives the opening and closing body from the fully closed position to the fully closed position Means for detecting the engagement state of the lock means and generating a lock detection signal, the closing device for the opening / closing body, wherein the second means is provided in response to the generation of the lock detection signal of the detection means. actuates the drive means, after the first drive means is operating in the closing direction and by the return amount reversed is set in consideration of the deformation amount of the opening and closing member by the one-side drive to the open direction is stopped Providing a control device for controlling so as to cut the electromagnetic clutch.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a schematic side view of a rear portion of an automobile, and FIG. 2 is an external view of the opening / closing body fully opened as seen from the rear of the automobile.
[0011]
(1) is a trunk lid that opens and closes the trunk room (1a), and is pivotally attached to the rear of the vehicle body with a pair of left and right hinge arms (2) having left and right hinge shafts (2a). And a fully open position (B) indicated by a two-dot chain line.
[0012]
(3) is a pair of left and right gas stays that are provided between the left and right hinge arms (2) and the vehicle body so as to be stretchable and apply a biasing force in the opening direction to the trunk lid (1). The trunk lid (1) in the fully open position is restricted from further rotation in the opening direction by the hinge arm (2) coming into contact with the stopper (S) provided on the vehicle body.
[0013]
(4) is a locking device that is mounted almost at the center of the rear end of the trunk lid (1), and is a striker supported on the vehicle body side at the fully closed position (C) indicated by a two-dot chain line in FIG. By engaging with 5), the trunk lid (1) is restrained to the closed state.
[0014]
(6) is an opening / closing device that constitutes a first driving means for driving the trunk lid (1) from the fully open position (B) to the fully closed position (C) or vice versa, and is located on the left front side in the trunk room (1a). A base plate (7) fixed to the panel of the motor, a motor (8) capable of forward and reverse rotation, and an electromagnetic clutch (9) disposed in a speed reduction means (not shown) for reducing the rotational force of the motor (8). And an output arm (11) whose free end is connected to the left hinge arm (2) via a link (10) and is rotatable by a motor (8) via a speed reduction means and an electromagnetic clutch (9). ). This open / close device (6) drives the trunk lid (1) in the open and close directions by one-sided drive as in the prior art.
[0015]
The electromagnetic clutch (9) is provided in the operating force transmission path between the motor (8) and the output arm (11), and the transmission path is normally cut off so that the trunk lid (1) can be manually opened and closed. Further, when the power is supplied, the transmission path is connected so that the rotational force of the motor (8) can be transmitted to the output arm (11), that is, the trunk lid (1).
[0016]
(12) is a closure device which is mounted on the vehicle body side and forms a second driving means for driving the striker (5) in the closing (downward) direction by the rotational force of the motor (12a). The lock device (4) is a striker. By engaging with (5), the trunk lid (1) is driven from the fully closed position (C) to the fully closed position (A) via the striker (5).
[0017]
The driving force for driving the trunk lid (1) in the closing direction is that the trunk lid (1) reaches the fully closed position (C) from the fully open position (B), and the locking device (4) is engaged with the striker (5). At that time, the switching device (6) is switched to the closure device (12).
[0018]
The motor (8) of the opening / closing device (6), the electromagnetic clutch (9), and the motor (12a) of the closure device (12) are respectively controlled by a control device (13) mounted on the vehicle body.
[0019]
As shown in FIG. 3, the control device (13) includes a controller (14), a drive circuit unit (15), and a rotation sensor (16). The controller (14) 8) A signal for controlling (12a) and the electromagnetic clutch (9) is output.
[0020]
The drive circuit unit (15) supplies power to the motor (8) of the opening / closing device (6) and the motor (12a) of the closure device (12) according to each signal of the controller (14). 17) Supply.
[0021]
The rotation sensor (16) is connected in series between the motor (8) and the drive circuit unit (15), detects a ripple current generated when the motor (8) is driven, and generates a pulse waveform corresponding to the ripple current. Input to the controller (14).
[0022]
The controller (14) counts the number of pulses output from the rotation sensor (16), and recognizes the number of rotations of the motor (8), that is, the amount of movement of the trunk lid (1) by detecting the number of pulses. .
[0023]
(18) is an operation switch provided in the vicinity of the trunk room (1a) for operating the switchgear (6). The controller (14) puts the electromagnetic clutch (9) in the connected state and rotates the motor (8) forward or backward according to each operation signal of the close switch (18a) or the open switch (18b) in the operation switch (18). A signal for reverse rotation control is input to the drive circuit section (15). Thus, the trunk lid (1) is driven in the closing direction or the opening direction by the operation of the opening / closing device (6).
[0024]
(19) is a lock detection switch that is disposed in the lock device (4), detects the engagement state between the lock device (4) and the striker (5), and inputs a lock signal to the controller (14).
[0025]
(20) is disposed on the base plate (7) of the switchgear (6), detects the position before the fully open position (B) of the trunk lid (1) via the output arm (11), and detects an open stop signal. Is an open detection switch for inputting to the controller (14). (21) is also arranged on the base plate (7), detects the position (C) before the fully closed position of the trunk lid (1) via the output arm (11), and inputs a close stop signal to the controller (14). This is a close detection switch.
[0026]
When the lock detection switch (19) and the close detection switch (21) generate detection signals, the controller (14) resets the number of pulses to 0 and maintains power supply to the electromagnetic clutch (9). The motor (8) is reversely controlled from forward rotation to reverse rotation, and after counting a predetermined number of reverse rotation pulses, a signal for stopping the power supply to the motor (8) and the electromagnetic clutch (9) is sent to the drive circuit section. Output to (15) . The motor (12a) starts driving from the time when the number of pulses is reset to zero.
[0027]
The trunk lid (1) is returned from the fully closed position (C) by a predetermined amount in the open direction by the reverse control of the motor (8) from forward rotation to reverse rotation. The return amount of the trunk lid (1) is set in consideration of the left and right deformation amounts of the trunk lid (1) driven by one side .
[0028]
Next, the flow of the closing operation of the closing device configured as described above will be described with reference to the flowchart shown in FIG.
When the trunk lid (1) is in the fully open position (B) and the close switch (18a) in the operation switch (18) is operated in step (S1), the controller (14) Signals for controlling the motor (8) and the electromagnetic clutch (9) are output to the drive circuit section (15).
[0029]
In steps (S2) and (S3), the power (17) is supplied to the motor (8) and the electromagnetic clutch (9), so that the electromagnetic clutch (9) is connected and the motor (8) is controlled to rotate forward. The trunk lid (1) is driven in the closing direction by the opening / closing device (6).
[0030]
When the trunk lid (1) reaches the fully closed position (C) and the lock device (4) engages with the striker (5), in step (S4), the lock detection switch (19) is moved to the lock device (4). The close detection switch (21) detects the position of the output arm (11) . In the fully closed position (C), the trunk lid (1) is deformed in the same manner as the prior art shown in FIG.
[0031]
When both the lock detection switch (19) and the close detection switch (21) generate detection signals, the supply of power to the motor (8) is temporarily stopped in step (S5). In step (S6), the controller (14) resets the number of pulses generated from the rotation sensor (16) to zero. Next, in step (S7), the motor (8) is reversely controlled to count the number of pulses.
[0032]
When the controller (14) counts a predetermined number of pulses in step (S8), the motor (8) is stopped and the electromagnetic clutch (9) is disconnected in steps (S9) and (S10).
[0033]
As a result, at the fully closed position (C), the trunk lid (1) is returned to the open direction by an amount corresponding to the deformation amount of the trunk lid (1) on the left side to which the opening / closing device (6) is connected. Accordingly, as in the prior art, the left side of the deformed trunk lid (1) is lifted vigorously by the seal reaction force, the biasing force of the gas stay (3), and the strain energy stored in the trunk lid (1). No abnormal noise is generated.
[0034]
In parallel with the flow of steps (S5) to (S10), in step (S11), the motor (12a) rotates forward, and the closure device (12) moves the trunk lid (1) to the position before the fully closed position (C ) To the fully closed position (A). In step (S12), when the trunk lid (1) is fully closed, the motor (12a) is stopped and the operation of the closure device (12) is stopped.
[0035]
The present invention is not limited to the above-described embodiment, and the driving force of the opening / closing device (6) is increased, and the trunk lid (1) is fully closed from the fully open position (B) by the opening / closing device (6). The present invention can also be applied to a device that is directly closed at the position (A). In this case, the closure device (12) becomes unnecessary, and the lock device (4) engages with the striker (5) in the fully closed position (A) of the trunk lid (1).
[0036]
【The invention's effect】
According to the present invention, the following effects can be achieved.
When (a) Ru good to the first aspect of the invention, be closed in a state where the opening and closing member is deformed, after returning a predetermined amount of opening and closing member in the open direction by the driving means, so to disconnect the electromagnetic clutch, deformed The opening / closing body does not return suddenly due to a seal reaction force, gas stay, strain energy, or the like. Therefore, no abnormal noise is generated when the deformed opening / closing body returns to its original state, and the opening / closing body can be closed quietly, and the quality can be improved.
[0037]
When (b) Ru good to the second aspect of the present invention, after closing body even in a state of being deformed at all closed testing prior position, returning only the open direction deformation amount of the opening and closing member by the first drive means, the electromagnetic Since the clutch is disengaged, the deformed opening / closing body does not return suddenly due to a seal reaction force, gas stay, strain energy, or the like. Therefore, when switching from the first driving means to the second driving means, there is no abnormal noise that occurs when the deformed opening / closing body returns, and the opening / closing body is quietly closed from the fully closed position to the fully closed position. Can improve quality.
Further, by providing the second driving means, the driving force of the first driving means can be reduced, and the first driving means can be reduced in size.
[Brief description of the drawings]
FIG. 1 is a schematic side view of a rear portion of an automobile showing an embodiment of the present invention.
2 is an external view of the opening / closing body when fully opened, as viewed from the rear of the automobile. FIG. 3 is a block diagram of the control circuit.
FIG. 4 is a flowchart showing the flow of the closing operation of the opening / closing body.
FIG. 5 is an external view of the opening / closing body at the position before full closing, as viewed from the rear of the automobile, for explaining the prior art.
[Explanation of symbols]
(1) Trunk lid (opening / closing body)
(1a) Trunk room
(2) Hinge arm
(2a) Hinge shaft
(3) Gasty
(4) Locking device (locking means)
(5) Strike (locking means)
(6) Opening / closing device (drive means or first drive means)
(7) Base plate
(8) Motor
(9) Electromagnetic clutch
(10) Link
(11) Output arm
(12) Closure device (second drive means)
(12a) Motor
(13) Control device
(14) Controller
(15) Drive circuit section
(16) Rotation sensor
(17) Power supply
(18) Operation switch
(18a) Close switch
(18b) Open switch
(19) Lock detection switch (detection means)
(20) Open detection switch
(21) Close detection switch
(S) Stopper

Claims (2)

The openably pivoted a closing member to the body, at least a driving means for driving the closing direction, and an electromagnetic clutch for connecting or disconnecting the operating force transmission path between the drive means and the closing member, the closing by one drive An opening / closing body provided with a lock unit that is engaged at a fully closed position of the body and restrains the opening / closing body in the closed state, and a detection unit that detects the engagement state of the lock unit and generates a lock detection signal In the closure device of
In response to the generation of the lock detection signal of the detecting means, the driving means operating in the closing direction is inverted in the opening direction by a return amount set in consideration of the deformation amount of the opening / closing body by the one-side driving. An opening / closing body closing device comprising a control device for controlling the electromagnetic clutch to be disengaged after being stopped. The openably pivoted a closing member to the vehicle body, a first driving means for driving the at least close direction by one drive, an electromagnetic clutch for connecting or disconnecting the operation force transmission path between the first drive means and said movable member And a locking means that is engaged at a position before the fully closed position of the opening and closing body and restrains the opening and closing body in a closed state; and a second driving means that drives the opening and closing body from a position before fully closed to a fully closed position; In a closing device for an opening / closing body comprising a detecting means for detecting an engagement state of the locking means and generating a lock detection signal,
The amount of deformation of the opening / closing body by the one-side drive of the first drive means operating in the open direction while operating the second drive means in response to the generation of the lock detection signal of the detection means An opening / closing body closing device comprising a control device for controlling the electromagnetic clutch to be disengaged after the return amount set in consideration of reversal is reversed and stopped.

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