JP2000085637A - Opening/closing drive device for side door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To rotate a side door in a simple structure by providing a driving portion for providing a horizontally driving force for a slide link mechanism that converts a horizontally driving force to a rotational direction driving force to rotate the vertically rotatable side door. SOLUTION: A slide link mechanism 10 is constituted with a rotation bracket 11 for rotating a vertically rotatable side door 2, a stay 15 fixed to its bottom, and a slide rail 19, a guide roller 16 provided on the top of the stay 15 is mounted capably of moving the slide rail 19, and converts a horizontally driving force into a rotationally driving force. A driving mechanism 20 is constituted of a belt 26 and a driving motor for rotating a driving roller 22. When the belt 26 is rewound in the arrow Q4 direction, the belt 26 is loosened, a driven roller 24 becomes movable in the arrow Q3 direction, and the side door 2 tilts by its own weight to rotate in the arrow Ql direction. For returning a closing position, the belt 26 is wound.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door opening / closing driving device, and more particularly to a side door opening / closing driving device for rotating a side door with a simple structure.

[0002]

2. Description of the Related Art FIG. 6 is a perspective view of a conventionally generally known wing body 1 mounted on a truck vehicle. 3 is a wing door provided on the left and right sides of the wing body 1, and 2 is a side door similarly provided on the lower left and right sides of the wing body 1. When loading or unloading luggage, the wing door 3 is turned up and down in the direction of arrow P1, and the side door 2 is moved down in the direction of arrow P2 around the hinge 4.
It is rotated up. In addition, there are truck trucks in which side doors 2 are provided on the left, right, and rear portions.

[0003]

However, the conventional side door 2 has the following problems.

[0004] As described above, the wing body 1 is excellent in cargo handling for loading and unloading luggage because the side surface of the body can be fully opened. Also, the pallets of truck vehicles are provided on the left, right and rear portions. Since the side door 2 can be opened, the cargo handling is excellent. However, since the opening and closing of the side door 2 is manually performed, the operation is extremely troublesome. Therefore, it is conceivable to rotate the side door 2 by a hydraulic mechanism or a gear driving mechanism, but the structure is complicated and there is a possibility that the price becomes extremely high. The present invention has been made in view of the above, and an object of the present invention is to provide a side door opening / closing drive device that rotates a side door with a simple structure.

[0005]

SUMMARY OF THE INVENTION Therefore, a side door opening / closing drive device according to the present invention comprises a slide link mechanism for rotating a side door rotatable in a vertical direction by changing a driving force in a horizontal direction into a driving force in a rotating direction. And a drive unit for applying a horizontal drive force to the slide link mechanism.

The slide link mechanism includes a pivot bracket rotatably attached to the side door, a lower end of the pivot bracket, and a guide roller at an upper end and a driven roller at a lower end. The side door is turned when a driven force in the horizontal direction is applied to the driven roller from the driving unit, the stay being configured by a stay provided and a slide rail on which the guide roller is movably mounted. It is characterized by moving.

[0007] The driving section includes a belt having one end fixed and hung on the driven roller, a driving roller for winding the other end of the belt, and a driving motor for rotating the driving roller. A driving force in a horizontal direction is applied to the driven roller by the rotation of the driving motor.

Further, the belt is characterized in that a wire, a rope or a chain is used instead of the belt.

[0009]

Embodiments of the present invention will be described below. FIG. 1 is an external perspective view of a wing body 1 in which a side door opening / closing drive device 50 according to the present invention is mounted on a side door 2. The wing door 3 is raised and lowered in the direction of arrow P, and the side door 2 is lowered and raised in the direction of arrow Q by the side door opening / closing drive device 50 about the hinge 4.

FIG. 2 is an enlarged external perspective view of the side door opening / closing drive device 50 according to the present invention shown in FIG. In the side door opening / closing drive device 50, a hinge 13 is rotatably attached to a pin 12 attached to a tip of a rotation bracket 11, the hinge 13 is fixed to the side door 2, and a drive fixed to the housing 14. The rotation bracket 11 is rotated by the driving of the motor 21, so that the side door 2 can be lowered and raised. The side door opening / closing drive device 50 is attached to the side frame 6 and the floor 5 by the housing 14.

FIG. 3 is a sectional view taken along the line AA of the side door opening / closing drive device 50 according to the present invention shown in FIG. The side door opening / closing drive device 50 includes a slide link mechanism 10,
The slide link mechanism 10 and the drive mechanism 20 are mounted on a housing 14, and the housing 14 is mounted on the side frame 6 and the floor 5 as described above.

The slide link mechanism 10 changes a driving force in the horizontal direction into a driving force in the rotating direction, and includes a turning bracket 11 for turning the side door 2 that can be turned in the vertical direction,
A stay 15 fixed to the lower end of the rotating bracket 11,
And a slide rail 19. The pivot bracket 11 is rotatably attached to the side door 2 by a hinge 13 attached to a pin 12.
A stay 15 having a driven roller 24 at the lower end thereof
Is fixed, and the guide roller 1 provided at the upper end of the stay 15 is provided.
6 is movably mounted between the upper slide rail 19A and the lower slide rail 19B of the slide rail 19. The driving mechanism 20 includes a belt 26 and a locking pin 25.
, Fixed roller 23, drive roller 22, drive roller 2
2 and a drive motor 21 (shown in FIG. 2) for rotating the motor 2. One end of the belt 26 is locked by the locking pin 25, and is hung around the driven roller 24 and the fixed roller 23, and is wound around the driving roller 22. The side door 2 is shown in FIG.
, And can be rotated about a hinge pin 4A of the hinge 4. A lock mechanism (not shown) is provided at an upper end of the side door 2.
When the side door 2 is closed, it is held in a vertical state.

FIG. 4 is a sectional view of the slide link mechanism 10 shown in FIG. Guide roller 16
The roller 17 is provided on both outer sides of a roller portion 18 having flanges 18A on both sides via shafts 17A. Since the shaft 17A is rotatably attached to the rotating bracket 11 and the stay 15, the roller 17
Is rotatable, and a bearing is provided on the outer periphery for smooth rotation.

The rollers 17 are rotatably mounted between upper slide rails 19A and lower slide rails 19B of slide rails 19 provided horizontally on both sides of the housing 14.

When the side door 2 shown in FIG. 3 is rotated downward for loading and unloading of goods from the vertically closed state, the lock mechanism (not shown) provided at the upper end of the side door 2 is released to drive. The side door 2 can be turned downward by driving the motor 21.

When the drive mechanism 21 is released by releasing the lock mechanism (not shown) and the belt 26 wound around the drive roller 22 is rewound in the direction of arrow Q4, the belt 26 wound around the driven roller 24 is loosened. , The side door 2 starts rotating in the direction of arrow Q1. The initial rotational power in the direction of arrow Q1 can be applied by its own weight, but a spring can also be applied to a lock mechanism (not shown) or the like. Further, the drive motor 21 is continuously driven,
The belt 26 wound around the driving roller 22 is indicated by an arrow Q4.
When the belt is rewound in the direction, the belt 26 hung on the driven roller 24 is further loosened, and the driven roller 24 can move in the direction of arrow Q3.

The side door 2 starts to tilt about the hinge pin 4A, and since the side door 2 is given a rotating force by its own weight, the driven roller 24 moves in the arrow Q3 direction as the belt 26 moves in the Q4 direction. And guide roller 1
6 also moves in the direction of arrow Q2 along the slide rail 19, and the side door 2 continues to rotate further in the direction of arrow Q1. The side door 2 can be stopped at an arbitrary tilting position by stopping the drive of the drive motor 21, but usually rotates to a substantially lower vertical position when loading and unloading luggage.

FIG. 5 is a side view when the side door 2 of FIG. 3 is rotated upward from a vertical opening position to a substantially vertical position downward. When returning the side door 2 to the upwardly vertical closed position shown in FIG.
The belt 26 can be wound by the driving roller 22 while being driven in the direction. When the driving motor 21 is driven and the driving roller 22 winds the belt 26 in the direction of the arrow R1,
The belt 26 between the fixed roller 23 and the driven roller 24 is pulled in the direction of arrow R2, the driven roller 24 moves in the direction of arrow R3, the guide roller 16 moves in the direction of arrow R4, and the side door 2 rotates in the direction of R5. . The side door 2 can be returned to the upwardly open position shown in FIG. 3 in the upward direction, but can be stopped at an arbitrary tilt position by stopping the driving of the drive motor 21.

The opening / closing drive device 50 of the above embodiment is
Although the belt 26 is used as the driving medium, a wire, a rope, a chain, or the like can be used without being limited to this, and it can be effectively used according to the turning force and the size of the side door 2 of the opening / closing drive device 50. Selection can be used. Further, although one opening / closing drive device 50 of the above embodiment is used for the side door 2, a plurality of opening / closing drive devices 50 may be used according to the size and weight of the side door 2.

Further, the opening / closing drive device 50 of the above embodiment is used.
Has been described with respect to an example in which it is mounted on the side door 2 of the wing body 1. However, the present invention is not limited to this, and can be used for the side door 2 of a truck bed and other various opening and closing doors.

As described above, the opening / closing drive device 50 of the above embodiment can open the side door 2 freely from the closed position to an arbitrary opening position, and has a simple and inexpensive compact structure that can freely close the arbitrary position. Things. In addition, since it has a simple structure and is compact, it can be mounted on the side door 2 already mounted.

According to the present invention, there is provided a side door opening / closing drive device which changes a driving force in a horizontal direction into a driving force in a rotating direction to rotate a side door rotatable in a vertical direction, and the slide link mechanism. And a drive unit that applies horizontal driving force to the door, so that the side door can be freely opened from the closed position to any open position, and can be closed freely to any position with a simple structure and an inexpensive and compact device Can be. In addition, because of its simple structure and compactness, it can be mounted on a side door already mounted.

The slide link mechanism includes a pivot bracket rotatably attached to the side door, a lower end of the pivot bracket, and a guide roller at an upper end and a driven roller at a lower end. A stay provided and a slide rail on which the guide roller is movably mounted, and rotates the side door when a horizontal driving force is applied to the driven roller from the driving unit. In order to move the slide link mechanism, the slide link mechanism can have a very simple structure.

The drive section includes a belt having one end fixed and hung on the driven roller, a drive roller for winding the other end of the belt, and a drive motor for rotating the drive roller. Since a horizontal driving force is applied to the driven roller by the rotation of the driving motor, the driving unit can have a very simple structure.

Further, since the belt uses a wire, a rope or a chain instead of the belt, it can be effectively selected and used according to the turning power and the size of the side door.

[Brief description of the drawings]

FIG. 1 is an external perspective view of a wing body in which a side door opening / closing drive device according to the present invention is mounted on a side door.

FIG. 2 shows an enlarged external perspective view of the side door opening / closing drive device according to the present invention shown in FIG.

FIG. 3 is a cross-sectional view of the side door opening / closing drive device according to the present invention shown in FIG. 2 taken along the line AA.

FIG. 4 is a cross-sectional view of the slide link mechanism shown in FIG. 3 along the line BB.

FIG. 5 shows a side view when the side door of FIG. 3 is turned upward from an opening position in a vertical direction to a downward position in a substantially vertical direction.

FIG. 6 shows a perspective view of a conventionally generally known wing body mounted on a truck vehicle.

[Explanation of symbols]

 2 Side Door 4 Hinge 10 Slide Link Mechanism 11 Rotating Bracket 12 Pin 13 Hinge 14 Housing 15 Stay 16 Guide Roller 19 Slide Rail 20 Drive Mechanism 21 Drive Motor 22 Drive Roller 23 Fixed Roller 24 Driven Roller 25 Lock Pin 26 Belt 50 Side door opening and closing drive

Claims (4)

[Claims] 1. A slide link mechanism for changing a horizontal drive force into a rotational drive force and rotating a vertically rotatable side door, and a drive unit for applying a horizontal drive force to the slide link mechanism. An opening / closing drive device for a side door, comprising: 2. The slide link mechanism according to claim 1, further comprising: a rotation bracket rotatably mounted on the side door; and a lower end of the rotation bracket, a guide roller at an upper end, and a driven roller at a lower end. The side door is rotated when a horizontal driving force is applied to the driven roller from the driving unit, the stay including a stay provided and a slide rail on which the guide roller is movably mounted. The side door opening / closing drive device according to claim 1, wherein the side door is opened and closed. 3. The driving unit includes a belt having one end fixed and hung on the driven roller, a driving roller for winding the other end of the belt, and a driving motor for rotating the driving roller, The side door opening / closing driving device according to claim 1 or 2, wherein a horizontal driving force is applied to the driven roller by the rotational driving of the driving motor. 4. The side door opening / closing drive device according to claim 1, wherein the belt uses a wire, a rope, or a chain instead of the belt.