JPH10317792A - Open and close support device for gate for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce worker's operation force required when a worker opens and closes a tail gate provided in an opening part for loading and unloading cargo in a rear part of a vehicle body by opening and closing the tail gate by a motor which incorporates a deceleration mechanism and can rotate forward and backward in such a manner that it can rise and fall. SOLUTION: An opening part 12 is closed by an upper springing door and a lower tail gate 14 so as to open it. A lower fringe part of the tail gate 14 is assembled on a lower fringe part of the opening part 12 so as to turn in the vertical direction. One end of a first link 22 is connected with an output shaft of a motor, and one end of a second link 23 is connected with the other end of the first link 22 and the other end thereof is connected with an outer surface of a side wall part of an inner panel of a vehicle body 11 so as to turn them. By rotating the motor, both links 22, 23 protrude linearly to turn the tail gate 14 downward and put it down so as to open a lower part of the opening part 12. When the motor is rotated in the reverse direction, the tail gate 14 turns and rises to close the lower part of the opening part 12. Consequently, it is possible to reduce load for a worker.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tailgate, a side gate and the like, which are vertically rotatably mounted on a lower edge of a vehicle body, and which is vertically turned on a lower edge of an opening provided in the vehicle body. The present invention relates to an opening / closing support device for a vehicle gate which is movably assembled, stands up by an upward rotation operation, closes the opening, and falls down by a downward rotation operation to open the opening. .

[0002]

2. Description of the Related Art Vehicle gates include a tail gate, a side gate, and the like. These gates are mounted on a lower edge portion of an opening of a vehicle body so as to be rotatable in a vertical direction, and are installed upward. The opening is closed by standing up by the turning operation, and the opening is opened by falling down by the turning operation downward.

A first link rotatably connected at one end to the gate is provided between the vehicle body and the vehicle gate.
And a second link rotatably connected at one end to the other end of the link and rotatably connected at the other end to the vehicle body, wherein the link mechanism comprises a gate. When the gate is in the upright position, the two links are in a state of being folded at the connecting portion of the two links, and when the gate is rotated downward, the two links extend linearly with each other so as to support the gate in a lying state. Has become.

In the vehicle gate support structure,
When the gate is opened / closed, the worker receives the entire weight of the gate, and when the gate is released immediately after the gate opening operation, the gate flaps when the opening is opened. You have to be careful with heavy operations. In Japanese Utility Model Laid-Open No. 2-48420,
A gate support structure that addresses such problems is shown.

[0005]

In the support structure for a vehicle gate disclosed in the above-mentioned publication, a spring is interposed between both links to urge the gate in a closing direction to open and close the gate. It is configured to reduce the force and to prevent the gate from fluttering when opened.

According to such a support structure, it is possible to reduce the opening / closing operation force and to prevent the gate from fluttering when the gate is opened, but it is not always sufficient.
In addition, in such a support structure, since a reaction force such as torsion and bending of the spring means is used, the biasing force on the gate cannot be adjusted or controlled more accurately.
The opening and closing operation force cannot be reduced accurately. Accordingly, it is an object of the present invention to address these issues.

[0007]

SUMMARY OF THE INVENTION The present invention is directed to a vertically rotatable assembly which is attached to a lower edge of an opening of a vehicle body, and stands up by an upward rotation operation to close the opening. ,
A gate opening and closing support device for a vehicle gate which is opened and lowered by a downward rotation operation. The motor provided in the gate is rotatable in normal and reverse directions, and one end thereof is integrally rotatable on an output shaft of the motor. A first link connected thereto; and a second link having one end rotatably connected to the other end of the first link and the other end rotatably connected to the vehicle body. Is what you do.

The opening / closing support device according to the present invention is particularly suitably applied to a tailgate for a vehicle, can function to assist in opening / closing the gate, and can automatically open / close the gate. It can also function as desired.

[0009]

In the vehicle gate opening / closing support device constructed as described above, the gate is received by both the link and the motor, and the first link is connected to the second link by the forward / reverse rotation of the motor. The gate can be turned up and down by closing and opening the gate by setting the gate in the stretched state or the folded state.

For this reason, the load on the gate operator can be reduced by the action of the torque at the time of the forward and reverse rotation of the motor, and the opening and closing operation by the operator can be assisted. To prevent flapping. Also, if you select a motor that outputs a torque that can withstand the addition of the gate, the opening and closing support can be opened and closed automatically by the opening and closing support device without the need for the operator to open or close the gate. It is.

As described above, in the opening / closing support device, the load on the gate is reduced by the action of the torque at the time of forward and reverse rotation of the motor, and the movement when the gate is opened is regulated. Gate load can be reduced and gate movement can be more reliably reduced, and rotation of the motor and motor can be reduced, as compared with a case where a spring means is used to reduce gate movement and regulate gate movement. The output torque can be adjusted and controlled with high precision, and the opening of the gate can be opened and closed by accurately performing the turning operation of the gate.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 shows a rear view of a vehicle employing an opening / closing support device according to an example of the present invention. The vehicle has an opening 12 for loading and unloading luggage formed at a rear portion of the vehicle body 11, and the opening 12 can be opened by an upper flip-up door 13 and a lower tailgate 14. It is closed.

The upper flip-up door 13 is vertically rotatably mounted on the upper edge of the opening 12 at its upper edge, and the lower tail gate 14 is mounted on its lower edge at its lower edge. The lower part of the opening 12 is rotatably mounted in the vertical direction, and the upper part of the opening 12 is opened by turning the flip-up door 13 upward and jumping up. Opening 1
2, the lower side portion is opened by rotating the tail gate 14 downward, as shown in FIG. As shown in FIG. 3, the tailgate 14 is supported by the vehicle body 11 by the opening / closing support device 20 according to the present invention.

The opening / closing support device 20 includes a motor 21 that can rotate forward and backward, a first link 22 and a second link 23. The motor 21 has a built-in speed reduction mechanism. The motor 21 is fixed to the inner surface of the left side wall of the inner panel 14b between the outer panel 14a and the inner panel 14b of the tailgate 14, and its output shaft 21a is It protrudes outward from the left side wall of the panel 14b.

The first link 22 is connected to the motor 2 at one end.
The first output shaft 21a is serrated and connected so as to be integrally rotatable. The second link 23 is rotatably connected at one end to the other end of the first link 22, and is rotatably connected at the other end to the outer surface of the side wall of the inner panel 11 a of the vehicle body 11. I have.

The tailgate 14 supported by the opening / closing support device 20 having the above-described structure includes a motor 21 and two links 22,
23, the two links 22, 23 stand up in a folded state, and close the lower part of the opening 12 as shown in FIG. In this state, if the motor 21 is rotated, for example, in the forward direction, the output shaft 2 is output at a reduced speed.
The first link 22 is rotated by the torque of 1a to rotate the second link 23, and the two links 22, 23 project linearly. During this time, the tailgate 14 gradually rotates downward while falling down while being supported by the output torque of the motor 21, and
Open the lower part of the opening 12 as shown in
After the opening, the tail gate 14 is restricted from rotating to maintain the lying state.

If the motor 21 is rotated, for example, in the reverse direction while the tailgate 14 keeps the opening 12 open, the first link 22 is rotated by the torque of the output shaft 21a output at a reduced speed. The second link 23 is rotated to move the two links 22 and 23 around the connection point. During this time, the tailgate 14 is gradually rotated upward while being supported by the output torque of the motor 21, and stands up.
While closing the lower part of the opening 12 as shown in FIG.
After the closing, the tail gate 14 is restricted from rotating, and the standing state is maintained.

Therefore, according to the opening / closing support device 20, the load on the operator of the tailgate 14 can be reduced by the action of the torque at the time of the forward / reverse rotation of the motor 21, and the opening / closing operation of the operator is assisted. In addition, the movement of the tail gate 14 when the opening 12 is opened can be restricted to prevent fluttering. In addition, if the motor 21 that outputs a torque that can sufficiently withstand the load on the tailgate 14 is selected, the opening / closing support device 20 can be used as an automatic opening / closing device that automatically opens and closes the tailgate 14.

As described above, according to the opening / closing support device 20, the load on the tailgate 14 is reduced by the action of the torque at the time of the forward / reverse rotation of the motor 21, and the movement of the tailgate 14 at the time of opening is regulated. So, tailgate 1
4, the load on the tailgate 14 and the regulation of the movement of the tailgate 14 can be further ensured as compared with the case where a spring means is employed to reduce the load on the tailgate 14 and restrict the movement of the tailgate 14. With motor 2
The rotation of the motor 1 and the output torque of the motor 21 can be adjusted with high accuracy in accordance with the rotational load of the tailgate 14, so that the automatic opening / closing operation of the tailgate 14 or its assistance can be accurately performed.

[Brief description of the drawings]

FIG. 1 is a rear view of a vehicle employing an opening / closing support device according to an example of the present invention.

FIG. 2 is a partial perspective view of the vehicle with a tailgate opened.

FIG. 3 is a partially enlarged cross-sectional view showing the opening / closing support device in the direction of arrow 3-3 in FIG. 1;

[Explanation of symbols]

11: body, 11a: inner panel, 12: opening, 1
3: Jumping door, 14: Tail gate, 14a: Outer panel, 14b: Inner panel, 20: Opening / closing support device,
21 ... motor, 21a ... output shaft, 22 ... first link, 2
3: The second link.

Claims (3)

[Claims] 1. An opening provided in a vehicle body is rotatably mounted on a lower edge portion of the opening so as to be able to turn up and down to close the opening and turn downward. An opening / closing support device for a vehicle gate that falls down by a moving operation to open the opening, and has a motor rotatable forward and reverse provided on the gate, and one end connected to an output shaft of the motor so as to be integrally rotatable. A vehicle comprising: a first link; and a second link having one end rotatably connected to the other end of the first link and the other end rotatably connected to the vehicle body. Gate opening and closing support device. 2. The vehicle gate opening and closing support device according to claim 1, wherein said gate is a vehicle tailgate. 3. The vehicle gate opening and closing support device according to claim 1, wherein the support device functions to assist in opening and closing the gate.