JP2003343154A - Automatic opening/closing device for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent the malfunction of an opening/closing member when unexpected external force is applied to the opening/closing member. <P>SOLUTION: In an automatic opening/closing device 10a for a car with the opening/closing member 12 installed to a car body in a freely openable or closeable manner, the device 10a has a rod member 30, at one end of which a connecting section 31 connected to the member 12 is mounted and in which a moving section 32 is secured at the other end. The device 10a has an output member 22, which is set up to the car body so as to be freely operated between corresponding open place and closed place at the totally open place and totally enclosed place of the member 12 and guides the moving section 32 on the basis of the open place and in which a guide groove 23 with an engaging end 24 is formed. The output member 22 is driven by a driving means 21 up to the closed place under the state, in which the moving section 32 is engaged with the engaging end 24, when the member 12 is closed automatically, and the movement of the moving section 32 is controlled by a temporary holding means 33 until a thrust reaches a prescribed one when the member 12 is closed manually. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle automatic opening / closing device, and more particularly to a technique effectively applied to opening and closing a trunk lid, a back door, an engine hood, a door, etc. which are attached to a vehicle body via a hinge.

[0002]

2. Description of the Related Art As an opening / closing member to be mounted on a vehicle such as an automobile, a trunk lid and a back door which are opened and closed by swinging a hinge as a fulcrum, and a sliding door which is opened and closed by moving along a rail. and so on.

For example, a trunk room for loading luggage is provided at the rear of the sedan vehicle, and a trunk lid is provided on the vehicle body so as to be openable and closable so as to cover the trunk room. As an opening / closing device for opening / closing such a trunk lid, an opening / closing device for automatically opening the trunk lid to the fully opened position has been developed in consideration of convenience when loading luggage, and power for opening the trunk lid has been developed. A torsion bar or a gas stay is used as the source. These power sources release the elastic force and gas pressure accumulated when the trunk lid is closed, as well as releasing the lock mechanism of the trunk lid.

The above-mentioned opening / closing device automates only the operation of opening the trunk lid, but an opening / closing device for automating the operation of closing the trunk lid has been developed for further convenience. A rod member is provided on the trunk lid and the hinge of this opening / closing device, and the power from the electric motor or the like is transmitted to the trunk lid through the rod member so that the trunk lid is automatically closed. There is.

However, if the closing operation is performed by an electric motor or the like, it is necessary to take a predetermined time from the viewpoint of safety when operating from the fully open position to the fully closed position. For this reason, even if the trunk lid is to be closed promptly such as in the case of rain, the operation of the electric motor must be waited.To close the trunk lid promptly by hand, a clutch or the like that separates the trunk lid and the electric motor is required. Becomes As described above, the opening / closing device capable of changing the operation method from automatic to manual requires complicated structure and high cost.

Therefore, as disclosed in US Pat. No. 3,716,945, an opening / closing device has been developed which allows the operation for closing the trunk lid to be easily performed automatically or manually. This opening / closing device has a plate rotated by an electric motor, and an arc-shaped guide groove is formed in the plate. One end of a rod member connected to the trunk lid is guided in the guide groove. When manually closing the trunk lid, the end of the rod member is moved along the guide groove without rotating the plate, while when automatically closing, the plate is rotated to rotate the plate. To operate the trunk lid.

[0007]

However, the opening / closing device disclosed in U.S. Pat. No. 3,716,945 has a structure in which the trunk lid is supported only by the gas stay in the fully opened position of the trunk lid. In such a structure, when an external force greater than the reaction force of the gas stay is applied in the closing direction of the trunk lid due to wind pressure,
The trunk lid may close suddenly.

An object of the present invention is to prevent malfunction of the opening / closing member when an unexpected external force is applied to the opening / closing member.

Another object of the present invention is to simply configure an automatic opening / closing device for a vehicle and to operate an opening / closing member automatically or manually.

[0010]

An automatic opening / closing device for a vehicle according to the present invention is an automatic opening / closing device for a vehicle having an opening / closing member which is openably / closably provided on a vehicle body via a hinge and is connected to the opening / closing member. A connecting member having one end and a moving part at the other end, and an open / closed position corresponding to the open / closed position of the opening / closing member on the vehicle body. When the output member is provided with a guide that slidably engages the moving portion under the open position and the opening / closing member is automatically closed, the output member is closed together with the moving portion. It is characterized by having a drive means for driving to a position and a temporary holding means for restricting the movement of the moving part until a predetermined thrust is applied to the opening / closing member when manually closing the opening / closing member.

In the vehicle automatic opening / closing device of the present invention, the guide is a guide groove circumscribing the moving portion, and an engaging end of the guide groove engages with the moving portion when the opening / closing member is automatically closed. It is characterized by matching.

In the vehicle automatic opening / closing device of the present invention, the guide is a guide roller inscribed in a groove formed in the moving portion, and the guide roller engages with the groove when the opening / closing member is automatically closed. It is characterized in that it engages with the joint end.

The vehicle automatic opening / closing device of the present invention has a reaction force means which is provided between the vehicle body and the opening / closing member and stores a reaction force for opening the opening / closing member when the opening / closing member is closed. It is characterized by

In the vehicle automatic opening / closing device of the present invention, the temporary holding means has an urging means for pressing the moving portion, and the movement of the moving portion is restricted by the pressing force.

The automatic opening / closing apparatus for a vehicle according to the present invention is characterized in that the temporary holding means holds the opening / closing member in the fully opened position by restricting movement of the moving portion.

In the vehicle automatic opening / closing device of the present invention, the guide groove is formed in an arc shape, and the driving means rotates the output member.

The vehicle automatic opening / closing device of the present invention is characterized in that the opening / closing member is a trunk lid.

According to the present invention, the provision of the temporary holding means for restricting the movement of the moving portion until a predetermined thrust is applied to the opening / closing member makes it possible to apply an unexpected external force to the opening / closing member. It is possible to provide an automatic opening / closing device for a vehicle that has a simple structure that prevents the opening / closing member from malfunctioning and that allows the opening / closing member to be easily and manually closed. As a result, it is possible to avoid a sudden closing operation of the opening / closing member and improve the safety of the vehicle.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a perspective view showing a part of a vehicle 11 provided with an automatic opening / closing device 10a for a vehicle (hereinafter referred to as an opening / closing device) according to an embodiment of the present invention from the rear side. FIG. 2 is a side view showing a situation in which the trunk lid 12 that is an opening / closing member is manually closed, and FIG. 3 is a trunk lid 1
It is a side view showing the situation where 2 is automatically closed.

As shown in FIG. 1, a trunk room 14 is formed at the rear end of the vehicle body 13, and a trunk lid 12 for opening and closing the opening of the trunk room 14 is provided in the vehicle body 13. Body 13 and boot lid 1
2 is connected via a hinge 15 formed in a hook shape, and the trunk lid 12 is connected to the vehicle body 13 and the hinge 15.
It is provided so that the hinge shaft 16 connecting the and can be used as a fulcrum to open and close between the fully open position shown by the solid line and the fully closed position shown by the broken line in FIG. Note that FIG. 1 shows a state in which the trunk lid 12 is opened to the fully open position. The trunk lid 12 is an opening / closing device 1 provided in the vehicle 11.
By 0a, it is automatically opened to the fully open position and automatically or manually closed to the fully closed position.

The trunk lid 12 shown in the figure is attached to the vehicle body 13 via a hinge 15 provided on the front side of the trunk room 14.
It is also possible to attach a hinge to the rear side of and to attach the trunk lid 12 to this hinge. Further, the opening / closing range of the trunk lid 12 is not limited to about 90 degrees and may be set arbitrarily.

As shown in FIG. 1, a support portion 18 for supporting the hinge 15 is formed on the vehicle body 13 between the vehicle compartment 17 and the luggage compartment 14. Between the support portion 18 and the hinge 15, a support portion 18 is formed. Is equipped with a torsion bar 19 which is a reaction means. One end of the torsion bar 19 has a support portion 18
The other end is engaged with the mounting hole of the hinge 15, and the torsion bar 19 is attached so as to be twisted by the opening / closing operation of the trunk lid 12, that is, the swinging of the hinge 15. Further, a lock mechanism (not shown) is provided in the vehicle body 13 which constitutes the trunk room 14, and the vehicle body 13 and the trunk lid 12 are engaged by the lock mechanism so that the fully closed position of the trunk lid 12 is maintained. ing. Therefore, in the process of closing the trunk lid 12, elastic force as a reaction force is accumulated in the torsion bar 19, and when the trunk lid 12 is closed to the fully closed position, the lock mechanism operates and the fully closed position is maintained. Then, in the process of opening the trunk lid 12, the stored elastic force is released as the lock mechanism is released. As a lock mechanism, a mechanism in which a hook-shaped lock member provided in the trunk lid 12 is engaged with a pin-shaped striker provided in the vehicle body 13 is provided. The lock member can be operated in conjunction with a release handle, a release lever, or the like, and the engagement can be released as necessary.

In the illustrated case, two torsion bars 19 are attached to the respective hinges 15. However, one torsion bar 19 should be provided according to the weight of the trunk lid 12 and the required opening / closing speed. You can Further, the reaction force means is not limited to the torsion bar 19, and a gas stay in which high-pressure gas is enclosed may be used.
The trunk lid 12 can also be automatically opened by using the gas pressure of the gas stay as a reaction force.

An electric actuator 20 is provided on the vehicle body 13 in the trunk room 14, and the electric actuator 20 operates so as to automatically close the trunk lid 12 based on a control signal from an ECU described later. The electric actuator 20 is composed of an electric motor 21 that is a driving unit and a rotating plate 22 that is an output member. Rotating plate 2 formed in a fan shape
An arcuate guide groove 23, which is a guide, is formed along the edge of the guide groove 23, and both ends of the guide groove 23 are closed by engaging ends 24 and closing ends 25. A gear reduction device 2 is provided between the electric motor 21 and the rotating plate 22.
6 is provided, the rotational drive of the electric motor 21 is transmitted from the output shaft 27 of the gear reduction device 26 to the rotating plate 22, and the rotating plate 22 is in the open position shown by the solid line and the closed position shown by the broken line in FIG. Is rotated between and.

In order to operate the electric actuator 20 in this manner, the electric motor 21 is connected to an electronic control unit (not shown), that is, an ECU. Further, in order to detect the operating position of the rotating plate 22, a magnet is attached to the drive shaft in the electric motor 21, and the Hall IC is fixed so as to be close to the magnet. The hall IC and the ECU are connected to each other, and the hall IC outputs the rotation angle and the rotation speed of the drive shaft to the ECU. The Hall IC is a sensor that converts a change in magnetic field into a voltage.

The ECU has a CPU, and this CPU
I / O port, ROM and RAM are connected to
The PU is connected to a drive circuit in the ECU via the I / O port. The ROM stores a control program for supplying a current to the electric motor 21 and various control data based on signals from the Hall IC and an operation switch described later, and the RAM performs arithmetic processing by the CPU. Data and output signals to the electric motor 21 are stored. The CPU executes drive control of the electric motor 21 according to the control program stored in the ROM.

In order to transmit the operation of the electric actuator 20 to the trunk lid 12, the electric actuator 2
A rod member 30, which is a connecting member, is provided between 0 and the trunk lid 12. A connecting portion 31 is provided at one end of the rod member 30. The connecting portion 31 is swingably attached to the hinge 15 at a substantially intermediate position (a hook-shaped curved portion) while the rod member 30 A moving portion 32 is provided at the other end, and the moving portion 32 is inscribed in the guide groove 23 of the rotating plate 22, that is, slidably engaged with the inner peripheral surface of the guide groove 23. It is installed. The connecting portion 31 is composed of a ball socket mounted on the rod member 30, and is swingably mounted by engaging with a ball stud provided on the hinge 15. Further, the moving portion 32 is constituted by a pin member having a retaining flange portion, and is mounted so as not to drop from the guide groove 23.

4A and 4B are enlarged side views showing the electric actuator 20. FIG. 4A shows a regulated state of a temporary holding mechanism 33 described later, and FIG. 4B shows an opened state of the temporary holding mechanism 33. As shown in FIGS. 4A and 4B, a temporary holding mechanism 33 as a temporary holding means is provided near the engaging end 24 of the rotating plate 22 so as to contact the guide groove 23. The temporary holding mechanism 33 includes a cylindrical regulating member 34,
It has a compression coil spring 35 as a biasing means for biasing the regulating member 34 toward the guide groove 23, and these are housed in a case 36 fixed to the rotating plate 22. Further, a long hole 37 is formed in the restriction member 34, and a retaining pin 38 integrally provided in the case 36 is passed through the long hole 37 to prevent the restriction member 34 from falling off. Although the illustrated temporary holding mechanism 33 is provided from the outside toward the guide groove 23, the temporary holding mechanism 33 may be provided from the inside toward the guide groove 23.

As shown in FIG. 4A, the regulating member 34 is biased by the spring force of the compression coil spring 35 so as to project into the guide groove 23. Therefore, the guide groove 23
When the moving portion 32 movably accommodated in the contact member comes into contact with the regulating member 34, the movement of the moving portion 32 is regulated by the pressing force of the regulating member 34. Further, as shown in FIG. 4B, when the moving part 32 is moved by a predetermined thrust, the moving part 32 moves the restricting member 34 against the spring force, so that the moving part 32 is restricted. It can move freely against the pressing force of.

The opening / closing operation of the trunk lid 12 by the opening / closing device 10a will be described below. First, when the trunk lid 12 is opened from the closed state, the lock mechanism that holds the trunk lid 12 is released. The elastic force stored in the torsion bar 19 is released by releasing the lock mechanism, and this elastic force opens the trunk lid 12 from the fully closed position to the fully open position.

At this time, the electric actuator 20 is not actuated, and the rotating plate 22 is stopped at the open position shown in FIG. Therefore, the moving portion 32 of the rod member 30 accommodated in the guide groove 23 is guided toward the engaging end 24 of the guide groove 23 as the trunk lid 12 is opened, and the temporary holding mechanism 33 is operated to the open state. While moving to the engaging end 24 of the guide groove 23. And
When the movement of the moving portion 32 is completed, the temporary holding mechanism 33 is actuated again to the regulated state in which the regulating member 34 is projected into the guide groove 23 and pressed against the moving portion 32. Therefore, the temporary holding mechanism 3
3 will fix the trunk lid 12 to the fully open position via the moving part 32, and until the trunk lid 12 is given a predetermined thrust, that is, a thrust to operate the temporary holding mechanism 33 in the open state, It will maintain the fully open position.

Thus, the trunk lid 1 in the fully opened position
A biasing force in the opening direction by the torsion bar 19 is applied to 2, and the temporary holding mechanism 33 restricts the operation in the closing direction. For example, even if a thrust force such as wind force that exceeds the biasing force of the torsion bar 19 is applied to the trunk lid 12 in the closing direction, the temporary holding mechanism 33 keeps the trunk lid 12 until the thrust exceeds the predetermined thrust.
Can be maintained in the fully open position.

Next, the trunk lid 12 in the fully opened position can be manually closed by pushing down the trunk lid 12 in the closing direction with a predetermined thrust. Even at this time, the electric actuator 20 does not operate, and the rod member 3
The moving part 32 of 0 moves by being guided by the guide groove 23.
The pressing force required at this time is the torsion bar 1
9 is a pressing force that resists the elastic force of 9 and the pressing force of the temporary holding mechanism 33, and is reduced only to the pressing force that resists the elastic force of the torsion bar 19 after the temporary holding mechanism 33 is opened. In this way, the trunk lid 1
When closing 2, the trunk lid 12 can be closed to the fully closed position only by pushing down the trunk lid 12 with a predetermined thrust, and at the fully closed position, the lock mechanism operates to hold the fully closed position. In addition, the closed end 25 side of the guide groove 23 is formed longer than the length required for opening and closing the trunk lid 12, and even if the trunk lid 12 is operated to the fully closed position, the moving portion 32 closes the closed end 25. Will not interfere with.

On the other hand, it is possible to automatically close the trunk lid 12 in the fully opened position by operating the electric actuator 20 and the trunk lid 12 via the rod member 30. First, an operation switch (not shown) provided in the vehicle compartment is operated by an operator, and a drive signal is output from the ECU to the electric motor 21 based on an operation signal output from the operation switch to the ECU. The electric motor 21 is rotationally driven by this drive signal, and the rotary plate 22 is rotationally driven from the open position corresponding to the fully open position of the trunk lid 12 to the closed position corresponding to the fully open position. While the rotating plate 22 is rotating, the position signal of the rotating plate 22 is input to the ECU from the Hall IC, and the drive signal sent to the electric motor 21 is feedback-controlled.

The guide groove 2 is formed by rotating the rotating plate 22.
The moving portion 32 that abuts the engaging end 24 of
It moves integrally with the rotating plate 22 while abutting on the. The rod member 30 mounted on the moving portion 32 is the hinge 1
When the electric actuator 20 for pulling down the trunk lid 12 via 5 to drive the rotary plate 22 rotates the rotary plate 22 to the closed position corresponding to the fully closed position of the trunk lid 12, a control signal from the ECU is sent. Accordingly, the rotating plate 22 is stopped. Then, after the lock mechanism is operated and the trunk lid 12 is held in the fully closed position, the electric actuator 20 is operated again, and the rotating plate 22 is rotated in the opposite direction toward the open position. Accordingly, the trunk lid 12 can be automatically closed to the fully closed position by using the rotating plate, and the opening operation is not limited by the rotating plate 22 when the trunk lid 12 is opened again.

As described above, even when the power source such as the electric motor 21 is used to automatically close the trunk lid 12, the guide groove 23 having the engaging end 24 is formed in the rotating plate 22. , The rod member 3 in the guide groove 23.
By guiding 0, the trunk lid 12 can be easily closed manually without providing a clutch or the like for disconnecting and connecting the electric motor 21 and the rod member 30. Further, by forming the arc-shaped guide groove 23, it is possible to reduce the space required when the rotating plate 22 operates, and the opening / closing device 10a.
It is possible to improve the loadability of. Furthermore, the temporary holding mechanism 3
Even if an unexpected external force is applied to the trunk lid 12 at the fully open position by providing the 3rd item, the trunk lid 12
It is possible to prevent an unnecessary closing operation of the vehicle 11 and improve the safety of the vehicle 11.

Although the temporary holding mechanism 33 is provided so that the regulating member 34 is urged perpendicularly to the moving direction of the moving portion 32, it should be angled with respect to the moving direction of the moving portion 32. You can If you make an angle like this,
It is possible to easily change the thrust force that operates the temporary holding mechanism 33 to the open state when the trunk lid 12 is opened and the thrust force that operates the temporary holding mechanism 33 to the open state when the trunk lid 12 is closed. As a result, when the thrust force when closing the trunk lid 12 is increased, the thrust force when opening the trunk lid 12 can be reduced,
It is possible to avoid increasing the size of the torsion bar 19 and the gas stay.

Further, the regulation member 34 is not limited to the cylindrical shape, but may be formed in a spherical shape. Further, it may be formed in a polygon such as a triangle. Moving part 3 when formed into a polygon
Since the action direction of the pressing force applied to 2 can be easily changed, it is possible to obtain the same effect as when the attachment angle of the temporary holding mechanism 33 is changed as described above.

FIGS. 5 and 6 are side views showing opening / closing devices 10b and 10c, respectively, which are other embodiments of the present invention. These opening / closing devices 10b and 10c have the same function as the above-mentioned opening / closing device 10a, but the guide groove 23 is formed in a linear shape. The same members as those of the opening / closing device 10a described above are designated by the same reference numerals.

As shown in FIG. 5, the opening / closing device 10b is provided with a rotating plate 40 having a linear guide groove 23 as an output member. The rotating plate 40, which is connected to the electric motor 21 via the gear reduction device 26, is formed in a substantially triangular shape. When the electric motor 21 is driven to rotate, an open position shown by a solid line and a closed position shown by a broken line in FIG. It is configured to rotate between. A temporary holding mechanism 33 is provided near the engaging end 24 of the rotating plate 40.
The moving portion 32 of the rod member 30 guided by the guide groove 23.
The temporary holding mechanism 33 restricts its movement. When manually closing the trunk lid 12, the rotating plate 4
0 is not rotated, the moving portion 32 is guided to the guide groove 23 according to the closing operation of the trunk lid 12,
When the trunk lid 12 is automatically closed, the rotating plate 40 is rotated to the closed position, as in the opening / closing device 10a described above.

The opening / closing device 10c shown in FIG. 6 is provided with a rack plate 41 having a linear guide groove 23 as an output member. The rack plate 41 is formed in a substantially rectangular shape, and a rack gear 42 is formed on one side of the rack plate 41. A pinion gear 43 that meshes with a rack gear 42 is mounted on the output shaft 27 of the gear reduction mechanism, and the rotational drive of the electric motor 21 is transmitted as a linear motion of the rack plate 41. By the rotational drive of the electric motor 21, the rack plate 41 is guided by a guide member (not shown) and linearly moves between the open position shown by the solid line and the closed position shown by the broken line in FIG. A temporary holding mechanism 33 is provided near the engaging end 24 of the rack plate 41, and the movement of the moving portion 32 of the rod member 30 guided by the guide groove 23 is restricted by the temporary holding mechanism 33. When the trunk lid 12 is manually closed, the rack plate 41 is not driven, and the moving portion 32 is guided by the guide groove 2 in accordance with the closing operation of the trunk lid 12.
On the other hand, when the trunk lid 12 is automatically closed, the electric motor 21 rotates and the rack plate 41 is driven to the closed position.

7 and 8 are side views showing a switchgear 10d according to still another embodiment of the present invention. Figure 7
Shows the operation for automatically closing the trunk lid 12, and FIG. 8 shows the operation for manually closing the trunk lid 12. This opening / closing device 10d is the above-mentioned opening / closing device 1
Although it has the same function as 0a to 10c, a groove 52 is formed in the moving portion 51 of the rod member 50 which is a connecting member, and a guide of the arm member 53 which is an output member, that is, a guide A roller 54 is slidably provided. The same members as those of the opening / closing devices 10a to 10c are designated by the same reference numerals.

As shown in FIG. 7, the arm member 53 connected to the electric motor 21 via the gear reduction device 26 is driven to rotate by the electric motor 21, and the open position shown by the solid line and the closed position shown by the broken line in FIG. The guide roller 54 is provided at the end of the arm member 53. A groove 52 is formed in the moving portion 51 of the rod member 50 so as to circumscribe the guide roller 54, that is, to engage slidably with the outer peripheral surface of the guide roller 54. Engaging end 55 and closing end 5
It is closed by 6 and 6. Engaging end 55 of moving part 51
A temporary holding mechanism 33 is provided in the vicinity, and the movement of the moving portion 51 of the rod member 50 guided by the guide roller 54 is restricted by the temporary holding mechanism 33.

When the trunk lid 12 is automatically closed, the arm member 53 is swung to the closed position shown by the broken line in FIG. 7 as in the case of the output members of the opening / closing devices 10a to 10c. The guide roller 54 is moved by swinging the arm member 53.
Contacts the engaging end 55 of the groove 52, and the moving portion 51 is moved to the closed position together with the guide roller 54. Therefore, the trunk lid 12 is closed to the fully closed state via the rod member 50, and the fully closed state of the trunk lid 12 is held by the lock mechanism.

On the other hand, when the trunk lid 12 is manually closed, as shown in FIG. 8, the arm member 53 is not rocked and the moving portion 51 is guided by the guide roller 54 according to the closing operation of the trunk lid 12. Will be guided to. At this time, since the movement of the moving portion 51 is restricted by the temporary holding mechanism 33 until a predetermined thrust is applied to the trunk lid 12, the unnecessary closing operation of the trunk lid 12 is performed like the above-described opening / closing devices 10a to 10c. Will be avoided.

When the trunk lid 12 is automatically closed and held at the fully closed position, the electric motor 21 operates in preparation for the opening operation of the trunk lid 12. By this operation, the arm member 53 swings to the open position, and the rod member 50 is moved to the position shown by the broken line in FIG. 8 while being guided by the guide member (not shown). When the lock mechanism is released with the rod member 50 arranged in this way, the reaction force of the torsion bar 19 opens the trunk lid 12 to the fully open position, and the rod member 50 moves to the position shown by the solid line in FIG. To do.

Thus, the moving portion 51 of the rod member 50 is
The guide roller 54 of the arm member 53 is slidably engaged with the groove 52 formed in the temporary holding mechanism 3 of the moving portion 51.
By holding the guide roller 54 on the moving portion 51 by using 3, it is possible to obtain the opening / closing device 10d having the same effect as the above-described opening / closing devices 10a to 10c.

The opening / closing devices 10a to 10d described so far.
Uses the elastic force of the torsion bar 19 to automatically open the trunk lid 12, but the temporary holding mechanism 33 may be used to automatically open the trunk lid 12. That is, in the opening / closing devices 10a to 10c, as shown by broken lines in FIGS.
With the rack 40 and the rack plate 41 in the closed position, the trunk lid 12 is fully closed by rotating the rotating plates 22, 40 and the rack plate 41 to the open position while pressing the moving portion 32 by the temporary holding mechanism 33. You may open it to the position. Further, in the opening / closing device 10d,
With the arm member 53 in the closed position as indicated by the broken line in FIG. 7, the arm member 5 is connected while the guide roller 55 and the moving portion 32 are connected by the pressing force of the temporary holding mechanism 33.
The trunk lid 12 may be opened to the fully closed position by rotating 3 to the open position. In this way, the temporary holding mechanism 33
When the trunk lid 12 is opened by using, the simple structure with reduced reaction force means can be obtained, and the low-cost opening / closing devices 10a to 10d can be obtained.

It is needless to say that the present invention is not limited to the above-mentioned embodiment, and various modifications can be made without departing from the scope of the invention. For example, in the present embodiment, the opening / closing member is the trunk lid 12 attached to the rear end of the vehicle body 13, but the present invention is not limited to this.
Backdoor, engine hood, sunroof, etc.
It can also be applied to other opening / closing members as long as it is attached to the opening / closing member.

Further, the temporary holding mechanism 33 shown in the figure has the engaging end 2
4 is provided so as to hold the moving portion 32 between the regulating member 34 and the regulating member 34, or so as to hold the guide roller 54 between the engaging end 55 and the regulating member 34, but the present invention is not limited to this. The temporary holding mechanism 33 is separated from the engaging ends 24 and 55.
May be provided on the rotating plates 22 and 40, the rack plate 41, and the moving unit 51. That is, the operating position of the trunk lid 12 held by the temporary holding mechanism 33 may be set to a position lowered from the fully opened position, instead of the fully opened position. Further, instead of the spring force of the compression coil spring 35 that biases the regulation member 34, air pressure or hydraulic pressure may be used to bias the regulation member 34.

Further, the guide grooves 23 formed in the rotating plates 22 and 40 and the rack plate 41, and the moving portion 5
The groove 52 formed in 1 may be a slit penetrating,
It may be a groove that does not penetrate. Both ends of the guide groove 23 and the groove 52 are engaged ends 24, 55 and closed ends 25, 56.
It does not need to be closed by means of, and the engagement ends 24, 55 that come into contact with the moving portion 32 and the guide roller 54 when closing the trunk lid 12 may be formed. Further, the moving portion 32 of the rod member 30 guided by the guide groove 23 may be slidably movable.
A roller or the like may be provided on the roller 2 so that the roller can move freely. Similarly, the guide roller 54 also has the groove 5
It may be slidably movable with respect to 2, or may be rotatably movable.

Further, the electric motor 21 is provided with a Hall IC for detecting the operating positions of the rotating plates 22, 40, the rack plate 41 and the arm member 53.
The Hall IC may be directly provided on the rotating plates 22 and 40, the rack plate 41, the arm member 53, and the moving unit 52. Also, a resolver, a rotary encoder, or the like can be used instead of the Hall IC. Further, the electric motor 21 may be drive-controlled by detecting the fluctuation of the current value supplied to the electric motor 21.

Needless to say, the shapes of the rotating plates 22 and 40 and the rack plate 41 provided as the output members are not limited to the plate shape, that is, the plate shape, and may have a thickness.

[0055]

According to the present invention, the provision of the temporary holding means for restricting the movement of the moving portion until a predetermined thrust is applied to the opening / closing member makes it possible to apply an unexpected external force to the opening / closing member. Also, malfunction of the opening / closing member can be prevented. As a result, it is possible to avoid a sudden closing operation of the opening / closing member and improve the safety of the vehicle.

Further, by providing the reaction force means, the opening / closing member can be automatically opened, and the commercialability of the vehicle can be further improved.

Further, by restricting the movement of the moving part by pressing the biasing means, it is possible to prevent the malfunction of the opening / closing member with a simple structure, and to keep the opening / closing member in a predetermined manner when manually closing the opening / closing member. It can be done by a simple operation of just pushing with the thrust of.

Further, by forming the guide groove in an arc shape, the automatic opening / closing device for a vehicle can be downsized.

[Brief description of drawings]

FIG. 1 is a perspective view showing a part of a vehicle equipped with a vehicle automatic opening / closing device according to an embodiment of the present invention.

FIG. 2 is a side view showing the vehicle automatic opening / closing device of FIG. 1, showing a manual closing operation of the opening / closing member.

FIG. 3 is a side view showing the vehicle automatic opening / closing device of FIG. 1, showing an automatic closing operation of the opening / closing member.

FIG. 4 is an enlarged side view showing a part of the vehicle automatic opening / closing device of FIG. 2, in which (a) shows a regulation state of a temporary holding mechanism,
(B) shows the opened state of the temporary holding mechanism.

FIG. 5 is a side view showing a vehicle automatic opening / closing device according to another embodiment of the present invention.

FIG. 6 is a side view showing a vehicle automatic opening / closing device according to still another embodiment of the present invention.

FIG. 7 is a side view showing an automatic opening / closing device for a vehicle which is still another embodiment of the present invention, showing an automatic closing operation of the opening / closing member.

FIG. 8 is a side view showing an automatic opening / closing apparatus for a vehicle which is still another embodiment of the present invention, showing a manual closing operation of the opening / closing member.

[Explanation of symbols]

10a, 10b, 10c, 10d Opening / closing device (automatic opening / closing device for vehicle) 11 Vehicle 12 Trunk lid (opening / closing member) 13 Vehicle body 14 Trunk room 15 Hinge 16 Hinge shaft 17 Vehicle compartment 18 Supporting portion 19 Torsion bar (reaction force means) 20 Electric Actuator 21 Electric motor (driving means) 22 Rotating plate (output member) 23 Guide groove (guide) 24 Engaging end 25 Closing end 26 Gear reduction device 27 Output shaft 30 Rod member (connecting member) 31 Connecting part 32 Moving part 33 Temporary holding mechanism (temporary holding means) 34 Restricting member 35 Compression coil spring (biasing means) 36 Case 37 Long hole 38 Retaining pin 40 Rotating plate (output member) 41 Rack plate (output member) 42 Rack gear 43 Pinion gear 50 Rod Member (connecting member) 51 Moving part 52 Groove 53 Arm member ( Force member) 54 guide roller (guide) 55 engaging end 56 closed end

Continued front page    F-term (reference) 2E052 AA09 BA02 CA06 DA02 DA05                       DA08 DB01 DB05 DB08 EA01                       EB01 EC01 GA07 GA08 GA10                       GB15 GC01 GD09 KA02 KA15                       KA16                 3D004 AA03 AA13 BA01 CA14 CA17                       CA21 CA33

Claims (8)

[Claims] 1. An automatic opening / closing device for a vehicle, comprising an opening / closing member which is openably / closably provided to a vehicle body via a hinge, wherein a connecting portion connected to the opening / closing member is provided at one end and a moving portion is provided at the other end. Provided on the vehicle body so as to be operable between a connecting member provided with, and an open position and a closed position corresponding to the fully open position and the fully closed position of the opening / closing member,
An output member provided with a guide that slidably engages the moving portion under the open position, and the output member together with the moving portion to the closed position when automatically closing the opening / closing member. Automatic opening / closing for a vehicle, comprising driving means for driving and temporary holding means for restricting movement of the moving part until a predetermined thrust is applied to the opening / closing member when manually closing the opening / closing member. apparatus. 2. The automatic opening / closing apparatus for a vehicle according to claim 1, wherein the guide is a guide groove circumscribing the moving portion, and when the opening / closing member is automatically closed, the engagement end of the guide groove is the guide groove. An automatic opening / closing device for a vehicle, which is engaged with a moving part. 3. The vehicle automatic opening / closing apparatus according to claim 1, wherein the guide is a guide roller inscribed in a groove formed in the moving portion, and the guide roller is automatically closed when the opening / closing member is automatically closed. An automatic opening / closing device for a vehicle, which engages with an engaging end of the groove. 4. The automatic opening / closing device for a vehicle according to claim 1, wherein the opening / closing member is provided between the vehicle body and the opening / closing member, and the opening / closing member is provided when the opening / closing member is closed. An automatic opening / closing device for a vehicle, comprising a reaction force means for storing a reaction force for opening. 5. The automatic opening / closing apparatus for a vehicle according to claim 1, wherein the temporary holding unit has a biasing unit that pushes the moving unit, and the moving unit moves by the pushing force. An automatic opening / closing device for a vehicle, which regulates 6. The automatic opening / closing device for a vehicle according to claim 1, wherein the temporary holding means holds the opening / closing member in the fully opened position by restricting movement of the moving portion. An automatic opening / closing device for a vehicle, which is characterized in that 7. The automatic opening / closing apparatus for a vehicle according to claim 2, wherein the guide groove is formed in an arc shape, and the drive means rotates the output member. An automatic opening / closing device for a vehicle, which is characterized in that 8. The vehicular automatic opening / closing apparatus according to claim 1, wherein the opening / closing member is a trunk lid.