JPH06280447A - Door device for automobile - Google Patents

Abstract

PURPOSE:To dispose a door opening closing mechanism favorably from a point of view of a space. CONSTITUTION:Rotational movement of an actuator 6 is converted into an assist force applying movement of an assist force applying member 4 by means of a movement converting means 22. Through assist force applying movement of an assist force applying member 4, an assist force to assist opening and closing of a door 1 is applied in the opening and closing direction of the door 1. By opening and closing the operation switch of the inner handle part of the door 1, an assist force is exerted on opening and closing of the door with high operability.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door device for an automobile which gives an assisting force for assisting the opening and closing of a door.

[0002]

2. Description of the Related Art Conventionally, for example, Japanese Utility Model Laid-Open No. 62-7518
As described in Japanese Unexamined Patent Publication (Kokai) No. 0, a door handle is installed at one end on the open side of the door, and a door lock device that interlocks with the door handle and engages with and disengages from a striker placed on the opening edge of the vehicle body It is arranged at the front end and the rear end, and is attached to the vehicle body through a swing arm at approximately the center of the door, and the upper end or the lower end of the open side of the door cooperates with the swing arm to form a parallelogram quadrangle. In a swing door opening / closing mechanism attached to a vehicle body via a link member, interlocking with the unlocking movement of the door lock device between the vehicle body and the other end of the door opposite to the opening side of the door. It is known that a door pushing mechanism that pushes the door outward and returns after pushing the door is provided.

[0003]

However, in such a structure, since the door pushing mechanism is arranged between the other end of the door on the side opposite to the opening side of the door and the vehicle body, There is a problem that a special space is required for the arrangement.

The present invention provides a door device for an automobile in which the door opening / closing mechanism can be advantageously arranged in terms of space.

[0005]

DISCLOSURE OF THE INVENTION The present invention is directed to a vehicle door in which a door is rotatably attached to a vehicle body via a hinge shaft, and when the door is opened and closed, an assisting force is provided to assist the opening and closing of the door. Assuming a device.

According to the first aspect of the present invention, there is provided an assisting force imparting member, one end of which is pivotally attached to the vehicle body at a position offset from the hinge axis of the door, and a rotating member disposed on the door. An actuator; a motion converting means interposed between a rotating member of the actuator and the other end of the assist force applying member, for converting the rotational motion of the rotating member into the assist force applying motion of the assist force applying member; And a control means for controlling the driving of the actuator.

In the invention of claim 2, the control means is
It is installed in the opening and closing operation part of the door, the operation of the actuator,
It is an operation switch for controlling the stop.

[0008]

According to the first aspect of the present invention, the rotational movement of the actuator is converted into the assisting force imparting motion of the assisting force imparting member by the motion converting means, and the door is opened and closed by the assisting force imparting motion of the assisting force imparting member. An assist force that assists the opening and closing of the door is given to the direction.

According to the second aspect of the present invention, by opening and closing the operation switch of the opening and closing operation portion of the door, operability is excellent and an assisting force is applied to the opening and closing of the door.

[0010]

Embodiments of the present invention will now be described in detail with reference to the drawings.

In FIG. 1 and FIG. 2 showing a schematic structure, 1
Is the door of the car, the inner panel 1a and the outer panel 1
b, and is openably (rotatably) pivotally attached to a vehicle body (not shown) via door hinge means 2 and 2 which are vertically arranged and have a vertical rotation shaft. Door hinge means 2 and 2 at a substantially intermediate position in the vertical direction and a hinge shaft 3 thereof.
At the position offset with
Has one end pivotally attached to the vehicle body. Specifically, one end of the assist force applying member 4 is pivotally attached to a bracket 5 fixed to the vehicle body.

Reference numeral 6 denotes a motor which is an actuator, which is arranged inside the door 1 (between the inner panel 1a and the outer panel 1b) and serves as a drive source for giving an assisting force for assisting the opening and closing of the door 1. There is.

A window glass 7 is constructed so as to be moved up and down by a window regulator 8.
9 is a door lock assembly, 10 is a door trim, 11
Is a floor panel, and 12 is a side sill.

Further, as shown in detail in FIGS. 3 to 5, the motor 6 has a gear 21 fixed to a motor shaft 6a thereof, and the gear 21 is provided with an assist force imparting member via a motion converting means 22. 4 is linked to the other end.

Specifically, the reduction gear 22 meshes with the gear 21, the reduction gear 22 is fixed to one end of a worm gear shaft 23 extending in parallel with the assist force applying member 4, and the worm gear shaft 23 is used as a motor. It is constituted so as to be rotated at a reduced speed by 6.

Reference numeral 25 denotes a slider, which is an assisting force applying member 4
A cylindrical portion 25c having a connecting portion 25a that is pin-connected to one end of the worm and an internal tooth 25b that meshes with the worm gear shaft 23.
And an engaging portion 25d extending from the tubular portion 25c to the side opposite to the connecting portion 25a.

Reference numeral 26 denotes a hollow motor case, which is connected to one end of the tubular portion 26b and a square tubular portion 26b having an opening 26a from which the other end of the assist force applying member 4 projects. And a connecting portion 26c extending downward.
6c is connected to the flange portion 6b of the motor 6. Then, in this combined state, the motor case 2
Inside of 6, the assist force imparting member 4 and the worm gear shaft 2 are provided.
3, the reduction gear 22, the slider 25, etc. are accommodated. Further, on the inner wall of the motor case 26,
A guide groove 26d with which the engaging portion 25d of the slider 25 is slidably engaged is formed.

Then, the assist force imparting member 4, the worm gear shaft 23, the reduction gear 22, the slider 25, etc. constitute a motion converting means 22 for converting the rotational movement of the motor 6 into the assist force imparting motion of the assist force imparting member 4. ing.

Further, as shown in FIGS. 6 to 11, the door 1
The inner handle portion 31 and the outer handle portion 32, which are the opening / closing operation portions of the, are provided with operation switches 33 and 34 for controlling the operation and stop of the motor 6.

That is, as shown in FIG. 2, the inner panel 1
An inner handle 36 is rotatably and pivotally attached to the attachment portion 35 of a, and an operation member 43 linked to the door lock assembly 9 is connected to the inner handle 36. In addition, the operation switch 33 is mounted via the mounting bracket 38.
(Pusher switch) is installed. Since the operation switch 33 is pressed when the inner handle 36 is rotated, the operation switch 33 is closed and the motor 6 is rotationally driven in a predetermined direction to generate an assist force for opening and closing the door. There is.

On the other hand, as shown in FIG. 3, the outer handle 37 is rotatably pivotally attached to the outer panel 1b at two front and rear hinge portions 38 and 39 each having a horizontal rotation axis. An operation switch 34 (pull switch) is provided between the mounting bracket 40 and the mounting portion 37 a of the outer handle 37 near the hinge portion 38. Then, when the outer handle 37 is rotated, the operation switch 34 is pulled to close the operation switch 34, and the motor 6 is rotationally driven in a predetermined direction to generate an assist force for opening and closing the door 1. It is like this. Further, in the vicinity of the other hinge portion 39, the protruding portion 37 b of the outer handle 37 is linked to the door lock assembly 9 via the linking member 42.

In addition to the switches 33 and 34, as shown in FIGS.
1 and upper inner panel 1a are also provided with lower and upper operation switch means 52, 53 for generating an assisting force for assisting the opening and closing of the door. In particular,
For example, in the case of the lower operation switch section 52 of the armrest section 51, as shown in FIG. 11, a board section 54 having an opening 54a in the center is attached and fixed to the door trim 10. Through a spring 56, a washer 57, and a nut 58, a movable plate portion 55 having a projecting portion 55a having a tip screw portion slidably inserted into the opening 54a is movable in the base plate portion 54 via a spring 56, a washer 57, and a nut 58. Installed. Further, the guide hole portions 54b arranged at the four corners of the substrate portion 54,
The guide shaft members 55a of the movable plate portion 55 provided corresponding to these are slidably fitted to. Operating switches 59, 59, 59, 59 for driving and controlling the motor 6 are arranged between the plate portions 54, 55 and in the vicinity of the guide shaft members 55a ,. The upper operation switch means 53 also has the same configuration as the lower operation switch means 52.

With the above construction, when the door 1 is opened, for example, the inner handle 36 or the outer handle 3 is opened.
Since 7 is gripped, the door lock assembly 9 is unlocked and the operation switch 33 or 34 is closed. The motor 6 is rotationally driven in a predetermined direction only while the operation switches 33 and 34 are closed. The rotation direction of the motor 6 is, for example, a torque sensor or a rotation sensor (not shown) arranged on the door hinge means 2.
Since it is possible to detect the opening / closing operation force, the opening / closing speed, the rotation direction of the door, etc., the magnitude and direction of the assist force can be determined accordingly. The assist force that is normally applied is large enough not to feel the weight of the door, and is applied in a predetermined direction.

The rotation of the motor 6 causes the gears 21 and 22 to move.
The worm gear shaft 24 is decelerated and rotated by the meshing of the above, and the slider 25 moves in the axial direction with respect to the worm gear shaft 24. That is, due to the engagement relationship between the engagement portion 25d of the slider 25 and the guide groove 26d of the motor case 26, the slider 27 moves in the axial direction of the worm gear shaft 24 without rotating.

As a result, the assist force applying member 4 is moved by the relative movement of the slider 27 with respect to the worm gear shaft 24.
The amount by which the through the opening 26a of the motor case 26 increases. Then, one end of the assist giving member 4 is
Since it is connected to the vehicle body via the bracket 5,
The assisting force imparting member 4 is stretched to try to rotate the door 1 in the opening direction, and an assisting force to open the door 1 is generated.

When the operation switches 33 and 34 are not closed, the drive current is cut off, the motor 6 is in a drive-free state, and the passenger can manually open and close it like the normal door 1. it can.

On the contrary, when the door 1 is closed, if the inner handle 36 or the outer handle 37 is gripped, the operation switch 33 or 34 is closed. And only while the operation switches 33 and 34 are closed,
The motor 6 is rotationally driven in the direction to open the door 1.

Due to the rotational driving of the motor 6, the slider 25 moves in the axial direction of the worm gear shaft 24, the assist force applying member 4 is housed in a large amount through the opening 26a of the motor case 26, and the door 1 is closed. And an assist force is generated.

When the door 1 is pushed and closed without holding the inner handle 36 or the outer handle 37, the operation switches 33 and 34 are not closed and the motor 6 is in a drive-free state as described above. Because
It can be closed like a normal door 1.

[0030]

According to the invention of claim 1, as described above, the rotational movement of the actuator is converted into the assisting force imparting motion of the assisting force imparting member by the motion converting means, and by the assisting force imparting motion of the assisting force imparting member. Since the assisting force for assisting the opening / closing of the door is applied in the opening / closing direction of the door, the door opening / closing mechanism is advantageously arranged in terms of space to provide the assisting force for assisting the opening / closing of the door. It becomes possible.

According to the second aspect of the present invention, the assist force is applied and released by opening and closing the operation switch of the door opening / closing operation section. Therefore, the operability is excellent and the assist force is applied to the opening and closing of the door. can do.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a vehicle door device.

FIG. 2 is a vertical sectional view of a door device of an automobile.

FIG. 3 is a sectional view taken along line III-III in FIG.

FIG. 4 is an exploded perspective view showing motion converting means.

FIG. 5 is a sectional view of the same.

FIG. 6 is an explanatory diagram of arrangement of operation switches.

FIG. 7 is an explanatory diagram of an operation switch of an inner handle portion.

FIG. 8 is an explanatory diagram of an operation switch of an outer handle portion.

FIG. 9 is an explanatory diagram of an outer handle portion.

FIG. 10 is a cross-sectional view showing another operation switch section.

FIG. 11 is an exploded perspective view of an operation switch section.

[Explanation of symbols]

 1 Door 3 Hinge axis 4 Assist force applying member 6 Motor (actuator) 21 Gear (rotating member) 22 Motion conversion means 31 Inner handle (opening / closing operation part) 32 Outer handle part (opening / closing operation part) 33,34 Operation switch 59 Operation switch

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display location E05D 15/04 7151-2E

Claims (2)

[Claims] 1. A door device for an automobile, wherein a door is rotatably attached to a vehicle body via a hinge shaft, and when the door is opened and closed, an assisting force is provided to assist the opening and closing of the door. An assist force imparting member whose one end is pivotally attached to the vehicle body at a position offset from the hinge axis, an actuator provided on the door and having a rotating member, a rotating member of the actuator and an assist force imparting member. A motion conversion means that is interposed between the rotary member and the other end of the rotary member and that converts the rotary motion of the rotary member into the assist force applying motion of the assist force applying member; and a control means that is linked to the actuator and controls the drive of the actuator. A door device for an automobile, comprising: 2. The door device for an automobile according to claim 1, wherein the control means is an operation switch which is provided in the opening / closing operation portion of the door and which controls the operation and stop of the actuator.