JPH03281883A - Automatic opening/closing device for opening/closing body - Google Patents

Abstract

PURPOSE:To make an opening/closing body manually and automatically openable and closable by attaching one link extended from a sliding body which is movable in an interlocked way with the opening/closing body to a driving body and the other link to a car body side in freely rotatable states. CONSTITUTION:When a back door 5 is manually opened or closed, the second slider 41 of a driving body moves in the vertical direction along the rail of the first guide member 27. When a driving motor is normally rotated by operating a switch at hand, an actuator starts to work and sets a locking device 7 to an unlocked state. Then the first slider 43 ascends and pushes the second slider 41 upward the latch 47 of a locking device 40 and a striker 45 rise in an engaged state. Moreover, an upward pressing force is applied to a lower link 69 extended from a sliding body 65 and an upper link 67 rotates in the direction shown by the arrow (c) around a pin P2. As a result, the back door 5 smoothly rotates upward.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to an automatic opening/closing device for an opening/closing body suitable for a back door of an automobile or the like.

(Prior art) In general, in the case of opening/closing bodies such as one-box type back doors, the open state is obtained by flipping upward using the hinge as a fulcrum, and the fully closed state is obtained by rotating downward. It is now possible to obtain it.

(Problems to be Solved by the Invention) As mentioned above, opening/closing bodies such as one-box type back doors are opened and closed using hinges as fulcrums. It is ensured that it can jump upwards significantly so that it does not get in the way. For this reason, when closing the back door located at a high position, the user may be forced to stretch his back in some cases, resulting in an awkward posture, which is undesirable in terms of operability.

Additionally, opening and closing the door can be troublesome if you are carrying baggage or on a rainy day.

Therefore, in this invention, it is a hot theory that the opening/closing body can be manually opened and closed from fully open to fully closed, and from fully closed to fully open, as in the past, without any problems, and it is also affected by the conditions of the opening/closing state. An object of the present invention is to provide an automatic opening/closing device for an opening/closing body that enables automatic opening/closing without any trouble.

[Structure of the Invention] (Means for Solving the Problem) In order to achieve the above object, the present invention includes a drive motor that can rotate forward and reverse, and a drive motor that performs reciprocating motion by rotating the drive motor forward and reverse. a driving member; a first slider that is connected to the driving member and is movable up and down and moves up and down along the first guide member when the driving member moves forward and descends when the driving member moves backward; A second slider that is slidable along the first guide member, and a slider that is slidable downward along the second guide member provided on the opening/closing body side that is equipped with an assisting mechanism that can be biased toward the open side. a moving body, a link mechanism in which links extend in two directions from the sliding body, one link being rotatably connected to the second slider and the other link to the vehicle body side, and the first and second sliders. a locking device that is connected to the locking device when the lock is locked and a locking device that is connected to the locking device when the locking device is unlocked;
a locking device control mechanism that brings the locking device in the locked state into the unlocked state when the second slider rises and descends;
a first detection switch that stops the operation of the drive motor by hitting a switch terminal when the locking device is unlocked and the first slider is in the lowest position; and when the locking device is unlocked, and a second detection switch that reverses the drive mode so as to lower the first slider by hitting a switch terminal when the second slider is assisted by the assisting mechanism and is at the highest position separated from the first slider; and a first slider. When the vehicle is at its highest point and the locking device is locked,
and a third detection switch that reverses the driving motor so as to lower the first slider by hitting the switch terminal.

(Function) According to this automatic opening/closing device, when the opening/closing body is fully closed, the second slider is in a disconnected state from the first slider, so the opening/closing body can be opened or closed manually. .

Next, when the opening/closing body is opened by the drive motor, when the second slider is in the best position away from the first slider, the second detection switch is activated, and only the first slider is lowered by the reverse rotation of the drive motor, and it is in the standby state. Become. Therefore, the opening/closing body can be closed by hand.

On the other hand, when the opening/closing body in the open state is closed by power (-, the first slider in the standby state is raised by the drive motor. At the highest position of the first slider, hit the switch terminal of the third detection switch. The first slider coupled with the second slider is lowered by the reverse rotation of the drive motor.This allows the opening and closing body to be fully closed, and the opening and closing body can be opened and closed manually or automatically under any conditions. It becomes possible.

(Embodiment) Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings of FIGS. 1 to 8.

In the figure, 1- indicates a one-box type vehicle body. At the rear of the vehicle body 1, a flip-up type pack door array is provided which opens and closes using upper hinges 3, 3 as fulcrums. The weight of the back door 5 is balanced by an assisting mechanism 6 such as a gas stay, and the back door 5 can be rotated from the open state (solid line in Figure 8) to the fully open state (dashed line in the same figure). When the door 5 is fully opened, a locked state in which the door is restrained by the locking device 7 and an unlocked state in which the door can be opened and closed are obtained.

The locking device 7 has a latch 11 that removably engages with a striker 9 provided on the vehicle body 1 side when the back door 5 is fully closed. It can be rotated between a normally engaged state (full latch) and a partially closed state (half latch) due to seal reaction force. The latch 11 in the half-latched state is a conventionally known latch whose operation is controlled by an operating cable 15 extended from the closure device 13 to a full-latched state in which it is properly engaged, thereby preventing accidents due to the door being left ajar. Actuation cable 1
The motor 17 of the closure device 13 that controls the traction of the back door 5 continues to hold the latch 11 in a half-latched state for a predetermined period of time when the back door 5 is ajar, based on a detection signal detected by a half-latch detection sensor (not shown). It is turned on, and when fully latched, it is controlled to be turned off by a detection signal from a full latch detection sensor (not shown).

In addition, the latch in the fully latched state that is properly engaged] 1 is
The outside handle 20 for manual operation is interlocked and connected to the open lever 19, and the actuator 23 is interlocked and connected to each other via a transmission means such as an actuating rod 21, so that they are controlled to a disengaged state and can operate independently. It is an operating system. The oven lever 19 functions to release the engaged state of the latch 1 by being pulled (arrow in FIG. 2) when the actuator 23 is turned on. In addition, the actuator 23 is an automatic opening/closing bag that opens and closes the packed door! 25. When operating the hand switch to turn on the 25, an on operation state can be obtained at the same time.

The automatic opening/closing devices 25.25 are arranged symmetrically on both left and right sides at the rear of the vehicle body.

The automatic opening/closing device 25 has a first guide member 27 on the vehicle body 1 side.
and a second guide member 29 on the back door 5 side.

The first kite member 27 has an upper cam surface 27a and a lower cam surface 27b in an upper region and a lower region, respectively, and each cam surface 27a, 27b is continuous by a guide surface 27C127d. Further, a rail portion 33 is provided approximately in the center of the first guide member 27 along the longitudinal direction, and is fixedly supported by a base plate 35 to the vehicle body.

A drive body 39 is mounted on the rail portion 33 and is controlled to be vertically movable by a drive motor 37.

The driving body 39 includes a first slider 43 and a first slider 43
and a second slider 41 disposed above, and can be coupled and uncoupled by a locking device 40.

The lock device 40 has a striker 45 and a latch 47, and the second slider 41 has a striker 45 and a first
Each slider 43 is provided with a latch 47 that engages with the striker 45 in a detachable manner.

The latch 47 of the first slider 43 is rotatable about the latch shaft 49 between an engaged state (FIG. 4) and a non-engaged standby state (solid line in FIG. 3), and is always kept in the standby state by a biasing spring 48. When the back door 5 is closed, the latch 47 and the striker 45 are set to a standby state in which they are not engaged, as shown in FIG.

The latch 47 is ensured by a lock device control mechanism 50 in a locked state in which it engages with the striker 45 and in an unlocked state in which it disengages from the striker 45.

The lock device control mechanism 50 includes a claw 47a of the latch 47.
a locking portion 51 that is removable from the first arm 5;
2.54.56.

The locking portion 51 is rotatable about the locking shaft 51a as a fulcrum,
The latch 4 is always biased to the operating position W (solid line in FIG. 7) by the biasing spring 58, and when the latch 47 and the striker 45 are locked, the latch 4
By engaging with the claw portion 47a of No. 7, the restrained state of the latch 47 is ensured.

One end of the first arm 52 is rotatably connected to the second arm 54, and the other end is connected to each of the cam surfaces 27a, 27b and the guide surface 2.
It is pivotally connected to a roller 52 that moves along lines 7c and 27d.

The other end of the second arm 54, which is pivotally connected at one end to the first arm 53, has a hook portion 54a and is rotatably connected to the third arm 56 via a slideable pin P4 within the range of the elongated hole 54b. The hook portion 54a can be engaged with and detached from the locking portion 51.

The third arm is rotatable about the arm shaft 56a as a fulcrum, and is always biased clockwise by a biasing spring 62.

The relationship between the hook portion 54a and the locking portion 5 is as shown in FIG.
The second and third arms 54. are pressed by the protrusion 64 provided on the slider 41-, and the second and third arms 54.
56 comes to engage with the locking portion 51 when it is in the folded state. Further, as the roller 53 rides on the guide surface 27d from the upper cam surface 27a and the lower cam surface 27b, the second arm 54 is pulled in the direction of the arrow, and the locking portion 51 is moved counterclockwise against the biasing spring 58. That is, it rotates in a direction away from the locking portion 51.

Note that the protrusion 64 is constantly urged toward the second arm 54 by a biasing spring 64a.

The drive motor 37 of the automatic opening/closing device 25 can be rotated forward or reverse by operating a hand switch located near the driver's seat. The first, second, and third detection switches LS-1, which will be described later, function to
Operation is controlled by LS-2.

The guard wire 61 is interlocked with the second slider 43, and raises the first slider 43 when the guard wire 61 moves forward (arrow A), and lowers the first slider 43 when the guard wire 61 moves backward (arrow A).

The first detection switch ■, S-1 is the first guide member 2
7, and is used to detect the lowest position of the drive body 39, and when the drive body 39 is lowered, the first slider 43 comes into contact with the switch terminal SI, thereby turning off the drive motor 37. It functions as follows.

The second detection switch LS-2 is disposed on the side of the upper end of the first guide member 27 and is used to detect the highest position of the second slider 41, and is for detecting the highest position of the locking device 140 that is away from the first slider 43. When the lock is unlocked and the second slider 41 is raised to the highest position by the assisting mechanism 6, the second slider 41 comes into contact with the switch terminal S2, so that the first slider 4
It has a function of reversing the drive motor 37 so that only 3 is lowered.

The third detection switch LS-3 is the second detection switch LS-2.
It is disposed below the upper end of the first guide member 27 to detect the highest position of the first slider 43, and when the locking device 40 that engages with the second slider 41 is locked, When the first slider 43 rises to the highest position, the drive motor 37 is reversed so that the first slider 43 comes into contact with the switch terminal S3, thereby lowering the first slider 43.

Furthermore, above the first detection switch LS-1, a first
A fourth detection switch L is provided on the side of the lower end of the guide member 27.
S-4 is located. This fourth detection switch LS-
4 is for detecting the initial raised position of the driving body 39;
The actuator 23 functions to be turned off when the drive body 39 rises slightly from the lowest position and the first slider 43 comes into contact with the switch terminal S3.

On the other hand, a second guide member 2 provided on the back door 5 side
9 is formed into a pipe shape, and its upper and lower ends are both supported by the back door 5 by brackets 63, 63. A sliding body 65 is slidably inserted into the second guide member 29 . Ends of an upwardly extending link 67 and a downwardly extending link 69 are rotatably attached to the mounting portion 65a of the sliding body 65 by means of a pin P1. - The extension end of the link 67 extended upward is the vehicle body 1
It is rotatably connected by a pin P2 to a mounting bracket 70 fixed to the. Further, the extended end of the link 69 extending downward is pivotally connected to the first slider 41 by a pin P3, and a link mechanism 71 is formed by each link 67 and 69. The position of the bin PI of the attachment portion 65a is set to be located outside (on the left side in FIG. 1) of the line W connecting the bins P2 and P3 on the extension end side of each link 67, 69.

Note that the other automatic opening/closing device 25 is the same as the component of the automatic opening/closing device 25 described above, so the same reference numerals are used and detailed description thereof will be omitted. Note that 73 indicates a window panel of the back door 5.

The operation of the automatic opening/closing device configured as described above will be explained.

When the back door 5 is fully closed, the first and second sliders 43 and 41 are in the uncoupled state, so the lock device 7 is in the unlocked state by operating the outside handle 20 without affecting the actuator 23. Therefore, the back door 5 can be opened and closed manually. When opening and closing the pack door manually, only the second slider 41 moves up and down along the rail portion 33, as shown in FIG. 6, and there is no problem in opening and closing the back door 5.

Next, in order to open and close using power, when the drive motor 37 is rotated forward by operating the hand switch, the actuator 23 is also activated and the locking device m! 7 is in the unlocked state. At the same time the first
The slider 43 also rises, and at this time, the first slider 43
pushes up the second slider 41, and the latch 47 and striker 45 rise while remaining in the engaged state. At this time, an upward pressing action acts on the lower link 69, and since the sliding body 65 serving as the pressing point is outside the line W connecting the bins P2 and P3, the upper link 67 uses the bin P2 as its fulcrum. As a result, the back door 5 smoothly rotates upward, and the back door 5 can be left in a wide open state up to the θ angle.

On the other hand, when the driving body 39 rises, when the roller 53 rides on the guide surface 27d from the upper cam surface 27a, the locking device 40 becomes unlocked by the action of the locking device control mechanism 50 as shown in FIG. The second slider 41, which is separated from the
Hit switch terminal S3 of detection switch L, S-2. As a result, only the first slider 43 is driven by the drive motor 37.
It descends due to the reverse rotation, hits the switch terminal S1 of the first detection switch LS-1 at the lowest position, and stops the drive motor 37 to enter a standby state as shown in FIG.

Therefore, the back door 5 can be closed manually without any trouble.

Further, as shown in FIG. 6, when the back door 5 is opened, when the drive motor 37 is rotated in the forward direction, the first slider 43 continues to rise due to the forward movement of the geared wire 61 (arrow A), as shown by the chain line in FIG. As shown, the locking device control mechanism 50 operates and the latch 47 and the striker 45 are engaged to become locked, and the switch terminal S3 of the third detection switch LS-3 is struck. As a result, the first and second sliders 43, 41 descend while remaining in the integrally coupled state. At this time of descent, the roller 5
3 is applied from the lower cam surface 27b to the guide surface 27d, the latch 47 and the striker 45 become disengaged again by the action of the lock device control mechanism 50, and the first slider 43
strikes the switch terminal S1 of the first detection switch LS-1 to stop the drive motor 37, so that the back door 5 can be closed. Therefore, manual or automatic opening/closing is possible under any opening/closing conditions.

In addition, when the door is closed, the locking device 7 in the half-latched state is ensured by the closure device 13 in a locked state in which the latch and the striker are engaged in the normal position.

In this embodiment, the back door 5 has been described, but the invention may be applied to other opening/closing bodies.

[Effects of the Invention] As explained above, according to the automatic opening/closing device of the present invention, even when the opening/closing condition is met, the opening/closing body can be manually opened/closed.
It can now be opened and closed by power, greatly improving operability. Further, since the sliding portion can slide to a position close to the pivot hinge point, the opening/closing body can be opened wide with a short stroke of the first and second sliders.

[Brief explanation of drawings]

Fig. 1 is a cutaway schematic side view of the rear part of an automobile implementing the automatic opening/closing device of the present invention, Fig. 2 is a schematic rear view of the same as above, Fig. 3 is an enlarged view of the drive body attached to the first guide member, Figures 4, 5, and 6 are operation diagrams of the same as above, Figure 7 is an enlarged view showing the relationship between the locking device control mechanism and the locking device, and Figure 8 is a state in which the back door of the opening/closing body etc. is opened. FIG. 5...Opening/closing body 6...Assisting mechanism 27...First guide member 29...Second guide member 37...Drive motor 40...Lock device 41...Second slider 43 ...First slider 50...Lock device control mechanism 6]...Geared wire (driving member) 65...Sliding body 71...Link mechanism LS-1...First detection switch LS-2 ...Second detection switch LS-3...Third detection switch

Claims (1)

[Claims] a drive motor capable of forward and reverse rotation; a drive member that reciprocates by the forward and reverse rotation of the drive motor; an opening/closing mechanism equipped with a first slider that can be moved up and down and that can be moved down at the same time; a second slider that is arranged above the first slider and that can slide along the first guide member; and an assisting mechanism that can be biased toward the opening side. A sliding body that can slide up and down along a second guide member provided on the body side, and links extending from the sliding body in two directions, one link extending to the second slider and the other link extending to the vehicle body side. a link mechanism rotatably connected; and the first and second link mechanisms.
A locking device that sets the slider in a connected state when the slider is locked and a locked state when the slider is unlocked; and a locking device that is interlocked with the locking device and unlocks the locking device that is in the locked state when the first and second sliders are raised and lowered. a first detection switch that stops the operation of the drive motor by hitting a switch terminal when the lock device is unlocked and the first slider is in the lowest position; a second detection for reversing the drive motor to lower the first slider by hitting a switch terminal when the device is unlocked and the second slider is at its highest position, assisted by the assisting mechanism and separated from the first slider; When the switch and the first slider are at the highest level, and when the locking device is locked,
An automatic opening/closing device for an opening/closing body, comprising a third detection switch that reverses the driving motor so as to lower the first slider by hitting a switch terminal.