JPH09277833A - Slide type door opening and closing device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a door opening and closing device which does not substantially projected in a room and can be electrically connected to a door securing device. SOLUTION: A parallel link.sliding mechanism 20 is arranged in the lower section of a door 16, and after floating the door 16 from the external face of car body by turning a parallel link 22, the rail 24 of the door 16 is made to slide by a slider 23, opening the door 16. An arm link mechanism 30 is provided on the upper end side through a base 31, a first arm 51 and a second arm 52 in order. A guide slides along the first arm 51 by the control rod connected to the second arm 52, and the guide roller of the guide is guided to the cam groove of the base 31. After following door turning caused by the turning of the second arm 52, the tip of the second arm 52 moves in parallel with a body wall along the fulcrum of the cam groove, supporting the sliding door. Since a parallel link is not projected, electric connection with the door can be done by the second arm 52.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sliding door opening / closing device for a vehicle which is slid along an outer surface of a vehicle body to open and close.

[0002]

2. Description of the Related Art In a passenger car or the like equipped with a normal hinged single-opening type door, due to the restriction of the opening angle of the door, a large cargo having a size comparable to the door opening width of the vehicle is loaded in the passenger compartment. It is not easy to dismount or to transfer between the passenger compartment and the wheelchair for people with disabilities. As a countermeasure against this, as a door opening / closing device for securing a sufficient space just beside the door opening, as shown in FIG.
There is a slide type door opening / closing device using a parallel link as shown in FIG. This is applied to a front door of a vehicle, and a rail 1 extending forward and backward on the inner surface of the door 101.
02 is provided, and a slider 103 that is slidable along the rail 102 is provided. A fixed side bracket 104 is provided at a substantially seat height position on the vehicle body side,
The fixed side bracket 104 and the slider 103 are connected by two parallel links 105 to form a parallel link structure 10
6 are formed.

When the door 101 is opened, first, the parallel link structure 106 rotates the door in parallel as shown by an arrow a and pushes the door outward so as to be in an offset state in which the door is floated from the outer surface of the vehicle body. Then, the door 101 is pushed backward as shown by the arrow b. This causes the rail 102 to slide rearward relative to the slider 103 and move rearward until the slider 103 reaches the rail end. Therefore, even in a passenger car in which it is difficult to ground a long rail on the vehicle body side, the door opening is widely opened as in a one-box car. The closing operation has the reverse order.

[0004]

However, in the above-mentioned conventional slide type door opening / closing device, the relatively large rail 102 is arranged in the center of the inner surface of the door, and the parallel link structure 106 is provided near the waist of the occupant. However, since a large structure exists in a protruding state, it is likely to be an obstacle when a passenger gets on or off. Furthermore, even when the door is closed, these structures come into contact with passengers or cargo,
There is a problem that it becomes a hindrance to driving and gives a feeling of oppression in appearance.

Further, although the above-mentioned sliding door opening / closing device opens the door by moving it backward, there is a disadvantage that if the front door is opened rearward, the rear door cannot be opened. Therefore, even if an attempt is made to move the door forward and open it, in this case as well, a large rail is located in the center of the door, and a large parallel link structure is projected near the occupant's knee. Contact with passengers and obstacles to driving increase.

Further, since the vehicle body and the door are separated from each other while the door is sliding, it is difficult to electrically connect the vehicle body and the door, and there is a disadvantage that, for example, the power window device cannot be driven. Therefore, in view of the above-mentioned conventional problems, the present invention is a slide for a vehicle that does not have a risk of an obstacle or a feeling of pressure to an occupant or the like, and that can be electrically connected to a device mounted on a door even during a door opening / closing operation. An object is to provide a door opening / closing device.

[0007]

Therefore, according to the present invention, a parallel link slide mechanism is provided below the door opening between the vehicle body and the door to allow the door to slide along the vehicle body wall. An arm link mechanism including a first arm and a second arm that are sequentially connected between the vehicle body and the door is provided above the link slide mechanism, and the arm link mechanism follows the movement of the door by the parallel link slide mechanism. And configured to support the door.

The arm link mechanism preferably supports the door on a track parallel to the vehicle body wall when the door slides. Particularly, in the arm link mechanism, one end of the first arm is supported by a base fixed to the vehicle body, and
The arm is provided with a guide that is slidable along the longitudinal direction thereof and includes a guide roller, and the middle portion of the second arm connected to the other end of the first arm and the guide are connected by a control rod. The angle of the second arm with respect to the arm is defined by the slide position of the guide, the guide roller of the guide is guided by the cam groove provided in the base, and the tip of the second arm hinged to the door is parallel to the vehicle body wall. The locus of the cam groove may be set to move to.

Further, the guide is provided with the guide roller on one of an upper side flange and a lower side flange holding the first arm, and a second guide roller offset to the guide roller on the other side flange,
It is desirable that the second guide roller is guided by a second cam groove provided on the base.

[0010]

When the door is opened, the door is first pushed outward so that the parallel link / slide mechanism rotates the door in parallel and the door is floated with respect to the outer surface of the vehicle body. Then, by sliding the door, the door opening is widely opened. During this time, the arm link mechanism responds to the rotation of the door by the rotation of the second arm with respect to the first arm, and thereafter, by the rotation of both arms in association with each other, the parallel link slide mechanism is used. Support the door, following the movement of the door. In particular, the second arm is connected to one end of the first arm supported by the base, and the guide provided with the guide roller is slid on the first arm to move the second arm.
When the middle part of the arm and the guide are connected by the control rod so that the guide roller is guided by the cam groove of the base, the tip of the second arm hinged to the door takes a track parallel to the vehicle body wall. You can

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to Examples. FIG. 1 is a perspective view showing the configuration and layout of an embodiment in which the present invention is applied to a front seat door. First, the parallel link slide mechanism 20 is arranged at the lower end of the front pillar 11 on the vehicle body side. The parallel link / slide mechanism 20 is configured by connecting a fixed side bracket 21 and a slider 23 with two parallel links 22. The fixed bracket 21 is fixed to the front pillar 11 and the side sill 13 so as to be substantially aligned with the floor surface 12. The parallel link slide mechanism 20 further includes a rail 24 extending in the front-rear direction along the lower edge of the inner surface of the door 16, and the slider 23 is slidably assembled to the rail 24. When the door is closed, the two parallel links 22 are attached to the side sill 13.
The slider 23 is folded into the rail 24
It is located at the front end of.

When the door is opened, first, the door 16 is pushed outward to rotate the parallel link 22 of the parallel link / slide mechanism to bring the door into an offset state in which the door is floated parallel to the outer surface of the vehicle body. Then the door 16
Push forward and the rail 24 of the door will slide
3, the slider 23 moves forward until the rear end of the rail 24 reaches the rear end of the rail 24, and the door opening is widely opened.

An arm link mechanism 30 is provided between the vehicle body side front pillar 11 and the inner side surface of the door 16 at a height position near the upper end of the door 16. The arm link mechanism 30 includes a first arm 51 and a second arm 52 that are sequentially connected to a base 31 fixed to the front pillar 11 at a side portion of an instrument panel (not shown).
The tip of the second arm 52 is connected to the door 16 by a hinge 56. When the door is closed, the first arm 51
The second arm 52 is aligned with the inner surface of the door 16. And when opening the door, the parallel link
In response to the rotation of the parallel link 22 of the slide mechanism 20, the second arm 52 rotates around the first arm 51.

The door 16 is supported at its lower end by the parallel link slide mechanism 20 and at its upper end by the arm link mechanism 30, and maintains its posture without falling. And the arm link mechanism 3
No. 0 is configured such that, while the rail 24 (door) slides along the slider 23, the locus of the tip of the second arm 52 is aligned in the front-rear direction in parallel with the sliding direction of the rail 24.

The arm link mechanism 30 will be described in detail below with reference to FIGS. 2 and 3. 2 is a top view of the base portion of the arm link mechanism 30, and FIG. 3 is A in FIG.
It is -A sectional drawing. The base 31 includes an upper plate 33 and a lower plate 34 that extend horizontally from above and below the bottom plate 32, and further has a support bracket 35 that extends from the bottom plate 32 between the upper plate 33 and the lower plate 34. One end of the first arm 51 having a U-shaped cross section is rotatably supported in the horizontal plane.
5 is connected to pin 5 by a pin 36. At the other end of the first arm 51, a second arm 52 having a U-shaped cross section is similarly connected by a pin 37 so as to be rotatable in a horizontal plane. And
The tip of the second arm 52 is connected to the inner surface of the door 16 by the hinge 56 as described above. Here the second arm 5
The arm length of 2 is set to be the same as the arm length of the parallel link 22.

In the vicinity of the pin 36, a flange 41,
A guide 40 having a U-shaped cross section having a first arm 51
Is arranged to hold. The first arm 51 is formed with a long hole 53 extending over a predetermined range. Guide 4
Two pins 4 provided between the upper and lower flanges 41 and 42 of 0 and arranged at intervals in the longitudinal direction of the guide.
3 and 44 respectively penetrate through the elongated holes 53 of the first arm 51, whereby the guide 40 is slidable along the first arm 51. One end of a control rod 54 having a U-shaped cross section is further connected to one of the pins 43, and the other end of the control rod 54 is connected to an intermediate portion of the second arm 52 by a pin 55. Guide 40 first
The slide along the arm 51 and the change in the angle of the second arm 52 with respect to the first arm 51 have a correlation.

A guide roller 45 is provided on the upper flange 41 of the guide 40, and the guide roller 45 is guided in a cam groove 60 formed in the upper plate 33 of the base 31. The cam groove 60 forms a straight line along the straight line until the second arm 52 is in a straight line from the straight line to the first arm 51, and thereafter, the tip of the second arm 52 is in this straight line. Take a locus that moves parallel to the direction of. In addition, as shown in FIG.
The lower flange 42 is also provided with a guide roller 46 at a position offset from the upper guide roller 45 along the longitudinal direction of the guide, and the guide roller 46 is provided in the cam groove 64 formed in the lower plate 34 of the base 31. You will be guided. Note that the support bracket 3 is shown in FIG. 4 for simplicity.
The state in which 5 is removed is shown.

5 to 10 show the arm link mechanism 30.
The state in the middle of each operation of is shown. In these figures, X is a vehicle longitudinal axis passing through the pin 36, and Y is a reference line showing a lateral axis. First, FIG. 5 shows a state in which the door 16 is in the closed position.
2 is a straight line. Further, the control rod 54 connected between the first arm 51 and the second arm 52 also fits within the contours of both arms 51, 52, and the appearance is such that one arm extends along the inner surface of the door. Present.

When the door 16 is pushed outward from this state, the door moves outward and forward along the trajectory of the parallel link slide mechanism 20. During this time, the first arm 51
Does not rotate because it is supported by the support bracket 35 by the pin 36 and the guide roller 45 of the guide 40 integrated with the first arm 51 is restricted by the cam groove 60 of the upper base plate 33 in the rotating direction. Only the second arm 52 rotates to follow the movement of the door 16. During this process, as shown in FIG. 6, when only the upper guide roller 45 of the guide 40 overlaps the position of the pin 36,
The first arm 51 is also rotatable, but as shown in FIG. 3, the lower guide roller 46 provided offset from the guide roller 45 is restricted by the cam groove 64 of the lower plate 34 of the base 31. Even in this state, the first arm 51 does not rotate.

After that, when the parallel link 22 of the parallel link / slide mechanism 20 reaches the operating end, the second arm 52 of the arm link mechanism 30 is placed at a right angle to the first arm 51 as shown in FIG. Become. At this time, the pin 36 and the hinge 56 at the tip of the second arm 52 seen in the vehicle lateral direction at this time
Let S be the distance from the door mounting surface. From the state of FIG. 5 to the state of FIG. 7, the guide 40 is pushed by the control rod 54, slides along the elongated hole 53 of the first arm 51, and slides along the straight section 61 of the cam groove 60.

Thereafter, the door 16 is moved in parallel in the front direction of the vehicle by the slider 23 of the parallel link slide mechanism 20 and the rail 24, and the tip of the second arm 52 of the arm link mechanism 30 is moved forward. Displace to move to. Here, as shown in FIG.
The arm 52 further falls and the control rod 54 displaces the guide 40 forward, and the guide roller 45 of the guide is moved.
Enters the curved portion 62 of the cam groove 60 of the upper base plate 33. As a result, the first arm 51 rotates around the pin 36 and the tip of the second arm 52 (the door mounting surface of the hinge) and the pin 3 move.
The distance S from 6 is held.

As described above, while the first arm 51 rotates about the pin 36, the angle of the second arm 52 with respect to the first arm 51 changes, so that the distance S between the tip of the second arm and the pin is reduced. While holding, the tip of the second arm 52 reaches the lateral position of the pin 36 as shown in FIG. When the slider 23 of the parallel link / slide mechanism 20 reaches the other end of the rail 24 (rear end of the door) by continuing to move further forward, as shown in FIG. The distance has greatly exceeded the lateral position of the pin 36.

During the movement shown in FIGS. 7 to 10, since the guide roller 46 is restricted by the cam groove 60 of the upper base plate 33, the relative position of the guide 40 with respect to the first arm 51 is restricted. Therefore, the first arm 5 connected to each other by the control rod 54 via the guide 40.
The angle between the first arm 52 and the second arm 52 is also regulated, and as described above, the tip of the second arm (the door mounting surface of the hinge) is a straight line whose distance from the pin is constant S. Move in orbit.

Parallel link slide mechanism 2 described above
0 and the respective stages of the operation of the arm link mechanism 30 are shown in association with each other as shown in FIG. The left column shows the parallel link / slide mechanism 20, and the right column shows the arm link mechanism 30. In order from the top, (a) door closing to rotation start state, (b) rotation operation end, (c) door slide midway, and (D) Indicates that the door is fully opened.

The present embodiment is constructed as described above, and the parallel link slide mechanism 20 is arranged at the lower part of the door opening, and the upper part is sequentially connected between the front pillar 11 and the inner surface of the door 16. The first arm 51 and the second arm 52 are provided, and the tip end of the second arm 52 connected to the upper part of the door is supported by the arm link mechanism 30 that moves on a straight and regulated orbit. The mechanism 20 can also be constructed in a relatively small size, and can be installed in an inconspicuous or unobtrusive portion such as a side sill portion. As a result, the parallel link / slide mechanism 20 does not significantly project into the room, and a large-sized rail is not placed in the center of the door to give a feeling of pressure. On the other hand, each arm of the arm link mechanism 30 has a relatively thin rod shape along the inner surface of the door even when the door is closed and does not generate a feeling of pressure, and the base 31 is hidden by the side surface of the instrument panel. There is no obstacle.

Although the embodiment is applied to the front sliding of the front seat door, the present invention is not limited to this, and the front door can be easily moved to the rear seat and the door opened by sliding in the rear direction. Applicable. Further, since the tip end of the second arm 52 of the arm link mechanism is always connected to the fixed position of the door 16, electrical connection between the door and the vehicle body becomes possible, driving the power window device and electrically driving the door. It is easy to open and close. At this time, since the first arm and the second arm are formed in a U-shaped cross section, the wiring can be routed within each arm cross section to maintain a good appearance. In the embodiment, the first arm and the second arm of the arm link mechanism are aligned with each other when the door is closed.
The present invention is not limited to this, and the second arm may have an angle with respect to the first arm when the door is closed depending on the structural characteristics of the door opening.

[0027]

As described above, according to the present invention, the parallel link slide mechanism is provided at the lower portion of the door, and the door is supported by the arm link mechanism having the first arm and the second arm which are sequentially connected at the upper side. Therefore, the parallel link slide mechanism, which has been large in the past, can be configured in a small size, can be installed in an unobtrusive and unobtrusive portion, does not significantly project into the room, and does not give a feeling of pressure. Further, this has an effect that an arbitrary sliding direction can be easily realized regardless of whether the seat is a front seat or a rear seat. Furthermore, since the arm tip of the arm link mechanism is always connected to the fixed position of the door, electrical connection between the door and the vehicle body is possible, and driving of the power window device and electric opening / closing of the door are easy.

[Brief description of drawings]

FIG. 1 is a perspective view showing a configuration of an embodiment of the present invention.

FIG. 2 is a top view showing details of an arm link mechanism.

FIG. 3 is a sectional view taken along the line AA in FIG. 2;

FIG. 4 is an explanatory view showing a cam groove.

FIG. 5 is a diagram showing a state of the arm link mechanism when the door is closed.

FIG. 6 is a view showing an operating state of the arm link mechanism when following parallel link rotation.

FIG. 7 is a diagram showing a state of the arm link mechanism when the parallel link reaches the working end.

FIG. 8 is a view showing an intermediate state of operation of the arm link mechanism.

FIG. 9 is a view showing an intermediate state of operation of the arm link mechanism.

FIG. 10 is a diagram showing a state of the arm link mechanism when the sliding end of the door is reached.

FIG. 11 is a view showing the stages of operation of the parallel link slide mechanism and the arm link mechanism in association with each other.

FIG. 12 is a diagram showing a conventional example.

[Explanation of symbols]

 11 Front Pillar 16 Door 20 Parallel Link / Slide Mechanism 21 Fixed Side Bracket 22 Parallel Link 23 Slider 24 Rail 30 Arm Link Mechanism 31 Base 32 Bottom Plate 33 Upper Plate 34 Lower Plate 35 Support Bracket 36, 37 Pin 40 Guide 41, 42 Flange 43 , 44, 55 Pins 45, 46 Guide roller 51 First arm 52 Second arm 53 Oblong hole 54 Control rod 56 Hinge 60, 64 Cam groove 61 Straight section 62 Curved part

Claims (4)

[Claims] 1. A parallel link slide mechanism is provided between a vehicle body and a door at a lower portion of a door opening to allow the door to slide along a vehicle body wall, and the vehicle body and the door are provided above the parallel link slide mechanism. And an arm link mechanism that includes a first arm and a second arm that are sequentially connected to each other, and the arm link mechanism is configured to support the door following movement of the door by the parallel link slide mechanism. A sliding door opening / closing device for a vehicle, which is characterized in that 2. The sliding door opening / closing apparatus for a vehicle according to claim 1, wherein the arm link mechanism supports the door on a track parallel to a vehicle body wall when the door slides. 3. The arm link mechanism, wherein one end of the first arm is supported by a base fixed to a vehicle body,
The arm is provided with a guide that is slidable along its longitudinal direction and includes a guide roller, and the middle part of the second arm connected to the other end of the first arm and the guide are connected by a control rod. The angle of the second arm with respect to the arm is defined by the slide position of the guide, the guide roller of the guide is guided by the cam groove provided in the base, and the tip of the second arm hinged to the door is attached to the vehicle body wall. 3. The sliding door opening / closing device for a vehicle according to claim 2, wherein the locus of the cam groove is set so as to move in parallel. 4. The guide includes the guide roller on one of an upper side flange and a lower side flange holding the first arm, and a second guide roller offset from the guide roller on the other flange, 4. The vehicle sliding door opening / closing device according to claim 3, wherein the second guide roller is configured to be guided by a second cam groove provided in the base.