JPH071962A - Sliding door opening and closing device for vehicle - Google Patents

Abstract

PURPOSE:To provide a sliding door opening and closing device for a vehicle by which a sliding door can be opened and closed by small operation force without requiring any large-scale device even if the vehicle parks on an inclined place or the like. CONSTITUTION:An inclination sensor 32 is arranged to detect an inclination in the longitudinal direction of a car body 2, and a link 19 is arranged between the car body 2 side and a sliding door 1 so as to rotate with the car body 2 side as its center, and a slider is arranged on the car body 2 side so as to move in the longitudinal direction of a vehicle in a more front side position or a more rear side position than the rotational center of the link 19. An electric motor 31 or the like is arranged to move the slider to the more rear side than the rotational center when the car body 2 is lowered forward as well as to move the slider to the more front side than the rotational center when the car body 2 is raised forward by a signal from the inclination sensor 32, and a main spring 35 is arranged between the slider and the link 19, and the link 19 is rotated backward when the car body 2 is lowered forward, and the link 19 is rotated forward when the car body 2 is raised forward.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle sliding door opening / closing device which can be opened and closed with a small operating force even when the vehicle is parked on a sloping ground or the like, and which is not opened and closed suddenly.

[0002]

2. Description of the Related Art Conventionally, an automobile door has a door body attached to a vehicle body by a hinge. The door body is opened and closed by rotating the door body around the hinge, and the door body is opened and closed in the front-rear direction. Some are equipped with sliding doors.

In the case of a door that opens and closes by rotating around the former hinge, even if the vehicle body is parked on a slope or other slope, the frictional resistance of the hinge is small and it is provided at a position distant from the hinge. Since the door is opened and closed by the handle, the operating force required for opening and closing the door does not change significantly due to the inclination of the vehicle body.

However, in the case of the latter slide door, if the vehicle body is tilted forward or backward, the weight of the slide door is added to the operating force, so the sliding door must be opened and closed with a force that overcomes this. , Some children, such as children and the elderly, are not able to open and close the sliding door.

By the way, as a device for opening and closing the slide door, a person other than an occupant can remotely open and close the slide door by power, or a final full latch when the slide door is closed. There are power locks on the market that can be closed automatically by.

[0006]

However, since the automatic slide door needs to be able to be automatically opened and closed by remote control, the size of the device becomes large, and the power lock is effective when the slide door is completely closed. However, there is a problem in that the operating force cannot be reduced because it does not function for normal opening and closing operations.

The present invention has been made in order to solve such a problem, and enables the sliding door to be opened and closed with a small operating force even when the vehicle is parked on a sloping ground without requiring a large-scale device. It is an object of the present invention to provide a sliding door opening / closing device for a vehicle.

[0008]

In order to achieve the above object, the invention according to claim 1 is to slide a slide door, which opens or closes an entry / exit opening opened in a side surface portion of a vehicle body, in a vehicle longitudinal direction. In the vehicle slide door opening / closing device, a tilt sensor for detecting the tilt of the vehicle body in the front-rear direction is provided, and the signal from the tilt sensor urges the slide door backward when the vehicle body lowers forward, It is characterized in that an urging means for urging the slide door forward is provided at the time of going up.

According to a second aspect of the invention, the urging means is provided with a link that rotates about the vehicle body side between the vehicle body side and the slide door, and the link is forward of the center of rotation of the link. A slider that moves in the vehicle front-rear direction between the position or the rear position is provided on the vehicle body side, and when the vehicle body descends forward by the signal from the tilt sensor, the slider is moved rearward from the rotation center. When the vehicle body is moving forward, a drive means for moving the slider to the front side of the rotation center is provided, and a main spring is provided between the slider and the link. The link is pivoted rearward, and when the vehicle body rises forward, the link is biased so as to pivot forward.

According to a third aspect of the present invention, the urging means is provided with an auxiliary spring for urging the link between the auxiliary spring and the vehicle body side, and a value of a moment acting on the link by the urging force of the auxiliary spring. And the value of the moment due to the urging force of the main spring are added, and the sum of the added value and the value of the moment generated on the link due to the weight of the slide door is set to be substantially zero. I am trying.

[0011]

According to the invention described in claim 1, when the sliding door is opened and closed when the vehicle is parked on a slope, even a weak person can easily open and close the sliding door.

That is, for example, when the vehicle body is lowered frontward, this state is detected by the tilt sensor, and the signal is urged by the urging means to urge the slide door backward, so that even a weak person can The sliding door can be opened easily. Moreover, when closing, the sliding door is not closed suddenly due to the urging force.

When the vehicle body is raised forward, the slide door is urged forward, so that the slide door does not suddenly open and the slide door can be easily closed.

According to the second aspect of the invention, for example, when the vehicle body is descending forward, this state is detected by the tilt sensor, and the signal from the tilt sensor is used to link the slider by the drive means. It is moved to the rear side from the center of rotation of. With this, the link is pivotally biased rearward by the main spring. Therefore, even a weak person can easily open the sliding door, and when closing the sliding door, the sliding door does not suddenly close due to the urging force.

When the vehicle body is in the front rising position, the slider is moved forward of the center of rotation of the link. With this, the main spring urges the link to rotate forward, and the slide door is not opened suddenly.
You can easily close the sliding door.

According to the third aspect of the present invention, when the vehicle is stopped on a slope, the main spring urges the link in either direction. In this case, the moment acting on the link changes in the region from the fully closed state to the fully opened state due to the elongation of the main spring and the like.

Therefore, an auxiliary spring is provided, and the value of the moment acting on the link due to the urging force of the auxiliary spring and the value of the moment due to the urging force of the main spring are added, and the added value and the sliding door are added. Since the sum of the moment and the value of the moment generated in the link due to its own weight is set to be substantially zero, the sliding door can be brought closer to the state of opening and closing the slide door on a flat ground.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings.

1 to 8 are views showing a first embodiment of the present invention.

In FIG. 1, reference numeral 1 denotes a slide door provided at an entrance / exit 2a opened on a side surface of the vehicle body 2 so as to be openable and closable in the front-rear direction. Reference numeral 3 denotes an upper rail attached to the upper portion of the vehicle body 2; Center rail attached to the rear center,
A link mechanism 5 supports the lower part of the slide door 1.

Front ends of the upper rail 3 and the center rail 4 are curved in an arc along the opening / closing locus of the slide door 1, and an upper roller 6 is rotatably supported on the upper rail 3. Upper roller 6
Is a load supporting roller 6a for supporting a horizontal load of the slide door 1 and a plurality of guide rollers 6b for guiding opening and closing.
The bracket 7 is rotatably attached to the front end of the bracket 7 fixed to the upper front corner of the slide door 1. A center roller 8 provided at the center of the rear portion of the slide door 1 is rotatably supported on the center rail 4.

The center roller 8 is rotatably supported by a support member 10 which is rotatably supported in the horizontal direction by a pin 9 inside the slide door 1 so as to guide the opening and closing of the slide door 1. In addition, a door lock 11 is provided near the center roller 8 so that the slide door 1 is locked when the slide door 1 is closed.

On the other hand, the link mechanism 5 is provided with an L-shaped lower arm bracket 14 having one end fixed to the front lower corner of the slide door 1, and one end of the second link 15 is pivoted by a pin 16 at the tip of the lower arm bracket 14. It is worn.

The other end of the second link 15 extends rearward along the inner side of the slide door 1 as shown in FIG. 2, and one end of the first link 17 is pinned to the upper surface of the tip. It is pivotally attached by 18 and on the lower surface slightly forward of it, the third
One end of the link 19 is pivotally attached by a pin 20 as shown in FIG. The other ends of the first link 17 and the third link 19 are pivotally attached to the link bracket 22 fixed to the vehicle body 2 side by pins 23 and 24.

The link bracket 22 has a substantially U-shaped cross section, and the other ends of the first link 17 and the third link 19 are inserted between the upper plate 22a and the lower plate 22b with a space therebetween. As shown in FIG. 4, the links 17 and 19 are rotatably supported by pins 23 and 24 penetrating from the upper surface plate 22a side to the lower surface plate 22b, and a stopper 17a is provided on one end side of the first link 17. When the slide door 1 is fully opened, the stopper 17a is projected and fits into the recess 25b provided in the stopper lever 25a of the check link 25 attached to the rear end of the link bracket 22 so that the stopper 17a slides. The door 1 is adapted to be held in that position. Also, the above third link 1
9 controls the bending direction and bending angle of the first link 17 and the second link 15 when the slide door 1 is opened and closed, and the other end side of the first link 17 is opened when the slide door 1 is opened. It is curved in an arc shape on the opposite side of the first link 17 so as not to interfere with the pivotally attached portion of

On the other hand, below the link mechanism 5 shown in FIG.
As shown in FIG. 5, a guide rail 27 is provided so that it is curved in an arc shape and the central portion is located near the center of rotation of the third link 19. The guide rail 27 has brackets 27a protruding from a plurality of locations. The brackets 27a are fixed to the lower surface of the floor 2b by fixing members 28, and the guide rail 27 is shown in FIG. Thus, the slider 29 is movably accommodated. As a result, the slider 29 moves in the vehicle front-rear direction between the front position and the rear position of the rotation center of the third link 19.

A guide rail is provided above the slider 29.
One end side of the cable 30 inserted from one end side of the cable 27 is fixed. The other end of the cable 30 extends from the guide rail 27 and serves as a "driving means" for the electric motor 3
Connected to 1. A driving means for moving the slider 29 in the vehicle front-rear direction is formed by the cable 30, the electric motor 31, and the like.

The electric motor 31 is electrically connected to a tilt sensor 32 which detects the tilt of the vehicle body 2 in the front-rear direction.
When the vehicle body 2 is in a substantially horizontal state, the slider 29 is moved to the center portion of the guide rail 27, and when the vehicle body 2 is tilted forward (when it is lowered frontward), the rear end side of the guide rail 27 (first Three
The guide rail 2 is moved to the rear side of the center of rotation of the link 19 and when the vehicle body 2 is tilted rearward (when it is raised forward).
It is configured to move to the front end side of 7 (front side of the center of rotation of the third link 19) via the cable 30. The amount of movement is appropriately set according to the tilt angle.

Further, the lower part of the slider 29 is shown in FIG.
As shown in FIG. 4, a latch pin 34 is screwed so as to project to the lower side of the guide rail 27. Then, one end of the main spring 35 is engaged with the retaining pin 34.

The other end of the main spring 35 is hooked by a pin 36 on one end of the third link 19 which constitutes the link mechanism 5.

Incidentally, reference numeral 26 in FIG. 3 denotes a weather strip which is in contact with the slide door 1 and maintains a sealed state when the slide door 1 is closed.

The operation will now be described. When the vehicle body 2 is parked on a flat ground, a signal from the tilt sensor 32 causes the electric motor 31 to move the slider 29 via the cable 30 to the central portion of the guide rail 27. (On the center of rotation of the third link 19)
Is moving to.

In this state, when a handle (not shown) is pulled to open the slide door 1, the door lock 11 is disengaged, guided to the front end portions of the upper rail 3 and the center rail 4, and the first part of the link mechanism 5 is released. The first link 17 and the second link 15 are sequentially bent as shown in FIG. 8, and the slide door 1 is first pushed outward with a gentle arcuate trajectory g. Thereafter, as the slide door 1 moves, the space between the first link 17 and the second link 15 is further bent, and the first link 17
And the pivot point of the second link 15 goes from a to b in FIG.
The slide door 1 is fully opened when it is moved to, and the stopper 17a protruding from the first link 17 is opened by the check link 2.
5 is inserted into the stopper rubber 25a, and the slide door 1
Are held in the fully open position. At this time, one end of the main spring 35 draws an arc d around the slider 29 as shown in FIG. 8, but since the length does not change, it does not contribute to the operating force.

Next, when the vehicle body 2 is parked in the front descent, the electric motor 31 is rotated by the signal from the inclination sensor 32, and the slider 29 is moved through the cable 30 to the rear end of the guide rail 27. Move to the side. As a result, the main spring 35 arranged between the slider 29 and the third link 19 is extended as shown in FIG. 8e, urging the slide door 1 backward. Therefore, when the slide door 1 is opened from this state, even a weak person can easily open the slide door 1 by the urging force.

Even when the slide door 1 is closed from the open position, the slide door 1 is biased rearward, so that the slide door 1 is closed.
Does not close suddenly.

On the other hand, when the vehicle body 2 is parked in the forward ascent, the slider 29 is moved to the front end side of the guide rail 27 by the signal from the tilt sensor 32. As a result, the main spring 35 is extended as shown in FIG. 8F to urge the slide door 1 forward.

Therefore, the slide door 1 does not suddenly open due to its own weight, and the main spring 35 urges the slide door 1 in the closing direction even when the slide door 1 is closed from the open position. The sliding door 1 can be closed.

In particular, the position of the slider 29 is appropriately changed depending on whether the inclination angle of the vehicle body 2 is large or small to open the slide door 1 with an operation force equivalent to that when parking on a flat ground. It is possible to close the slide door 1 quietly.

Further, FIGS. 9 to 11 show a second embodiment of the present invention.

In this embodiment, as shown in FIGS. 9 and 10, the first gear 50 is provided integrally with the second link 17,
The second gear 51 meshing with the gear 50 is the third link 19
It is provided so as to rotate independently of the link 19 at the center of rotation.

Then, the second gear 51 and the slider 29
An auxiliary spring 52 is disposed between the and. Second
A pin 53 is provided on the lower surface side of the gear 51, and one end of the auxiliary spring 52 is locked to the pin 53.

With this auxiliary spring 52, each gear 5
The second link 17 is rotationally biased via 0, 51. This urging force and the second of the auxiliary spring 52
The mounting position on the gear 51 is set as follows.

That is, in FIG. 11, when the vehicle is stopped in the forwardly raised state and the moment acting in the counterclockwise direction on the center of rotation of the third link 19 is positive and the clockwise direction is negative, the sliding door is shown. One's own weight and each spring 35, 5
2 shows the relationship between the moment and the door open / close position.

That is, the characteristic of the moment of gravity due to the own weight of the slide door 1 is shown by the curve A, while the characteristic of the moment due to the biasing force of the main spring 35 is shown by the curve B. In this case, if the biasing force of the main spring 35 is set so as to balance the self-weight moment in the fully opened and fully closed states of the door, an excessive amount of assist as shown by the characteristic curve C shown by the broken line in FIG. 11 will occur. . Therefore, the characteristic of the moment due to the biasing force of the auxiliary spring 52 is set so as to cancel the excessive assist portion as shown by the curve D. In other words,
The value of the moment acting on the third link 19 by the urging force of the auxiliary spring 52 and the moment value by the urging force of the main spring 35 are added, and the added value and the weight of the slide door 1 cause the third link 19 to move. It is set so that the sum with the value of the generated moment becomes substantially zero.

As a result, for example, when the sliding door 1 is opened / closed in a state where the vehicle is moving forward, the result is as shown in FIG. As shown in (a) of FIG. 10, when the sliding door 1 is in the fully closed state, the pulling direction of the auxiliary spring 52 passes over the rotation center of the third link 19,
This urging force does not act as the urging force of the first link 17. Therefore, only the moment of the main spring 35 cancels out the self-weight moment.

Next, as shown in FIG. 10B, during the opening and closing of the slide door 1, the second gear 51 is rotated, so that the pulling direction of the auxiliary spring 52 deviates from the center of rotation. The urging force of the spring 52 acts on the first link 17. The moment by the spring 52 cancels the excessive assist moment, so that the balance is maintained.

Further, as shown in FIG. 10C, when the sliding door 1 is fully opened, the pulling direction of the auxiliary spring 52 passes over the rotation center of the third link 19, so that this urging force is applied. It does not act as the urging force of the first link 17. Therefore, only the moment of the main spring 35 cancels out the self-weight moment.

By doing so, it is possible to properly cancel out the self-weight moment, and it is possible to perform the opening / closing operation of the slide door 1 closer to a flat ground as compared with the first embodiment.

The other structure and operation are the same as those of the first embodiment, and the description thereof will be omitted.

In the above embodiment, an example in which the lower part of the slide door 1 is supported by the link mechanism 5 has been described, but as shown in FIG. 12, the lower part of the slide door 1 is lower. Le 38 and Roalo La 3
It is also applicable to a slide door device having a structure supported by 9. Further, the urging means for urging the slide door 1 is
It may be an elastic body such as a spiral spring or rubber.

[0051]

As described above, according to the invention described in claim 1, the inclination sensor for detecting the inclination of the vehicle body in the front-rear direction is provided, and the signal from the inclination sensor is used to
When the vehicle body is descending forward, urge the slide door backwards,
When the vehicle body is raised forward, by providing an urging means for urging the slide door forward, the structure is simple to urge, and even a weak person can easily open and close the slide door. In addition, since the slide door is not opened or closed suddenly by its own weight, the slide door can be opened and closed safely.

According to the second aspect of the invention, the slider, the link, the main spring, etc. have a simpler structure,
The sliding door can be biased rearward or forward.

According to the invention described in claim 3, an auxiliary spring for urging the link is provided between the vehicle body side and the value of the moment acting on the link by the urging force of the auxiliary spring and the main body. The value of the moment due to the urging force of the spring is added, and the sum of the added value and the value of the moment generated on the link due to the weight of the slide door is set to be substantially zero. It has a practical useful effect that it can be brought closer to the state of opening and closing.

[Brief description of drawings]

FIG. 1 is a perspective view showing a vehicle slide door opening / closing device according to a first embodiment of the present invention.

FIG. 2 is a view from the direction A of FIG. 1 showing the first embodiment.

3 is a sectional view taken along line BB in FIG. 1 showing the first embodiment.

FIG. 4 is an exploded perspective view of a link mechanism according to the first embodiment.

FIG. 5 shows the first embodiment and is a view taken in the direction of the arrow C in FIG.

FIG. 6 is a view from the direction D in FIG. 2 showing the first embodiment.

FIG. 7 is a sectional view taken along the line EE of FIG. 1 showing the first embodiment.

FIG. 8 is an operation explanatory view showing the first embodiment.

FIG. 9 is a perspective view corresponding to FIG. 4 showing a second embodiment of the present invention.

FIG. 10 is an explanatory diagram showing the operation of the second embodiment.

FIG. 11 is a graph showing the relationship between the moment and the door open / close position according to the second embodiment.

FIG. 12 is an explanatory diagram showing a modified example of the embodiment of the present invention.

[Explanation of symbols]

 1 slide door 2 vehicle body 2a entrance / exit 15 second link 17 first link 19 third link 27 guide rail 29 slider driving means 30 cable 31 electric motor 32 tilt sensor 35 main spring 52 auxiliary spring

Claims (3)

[Claims] 1. A slide door opening / closing device for a vehicle, which slides a slide door for opening or closing a doorway opening on a side surface of a vehicle body in a vehicle front-rear direction, comprising an inclination sensor for detecting an inclination of a vehicle body in the front-rear direction. When the vehicle body is descending forward by the signal from the inclination sensor,
When the sliding door is urged backwards and the car body rises forward,
A slide door opening / closing device for a vehicle, characterized in that a biasing means for biasing the slide door forward is provided. 2. The urging means is provided with a link that rotates about the vehicle body side between the vehicle body side and the slide door, and between the front side position and the rear side position with respect to the rotation center of the link. With a slider that moves in the vehicle front-back direction on the vehicle body side,
A signal from the tilt sensor moves the slider rearward from the center of rotation when the vehicle body is descending forward,
When the vehicle body rises forward, drive means for moving the slider forward of the center of rotation is provided, and a main spring is provided between the slider and the link, and when the vehicle body descends forward, 2. The vehicle sliding door opening / closing device according to claim 1, wherein the link is rotated rearward, and when the vehicle body is raised forward, the link is biased so as to be rotated forward. . 3. The urging means is provided with an auxiliary spring for urging the link between the vehicle body side, and the value of the moment acting on the link by the urging force of the auxiliary spring and the urging force of the main spring. 3. The value of the moment due to is added, and the sum of the added value and the value of the moment generated in the link due to the weight of the sliding door is set to be substantially zero. Sliding door opening and closing device for vehicles.