JP2969428B2 - Opening and closing device for sliding doors for vehicles - Google Patents

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 apparatus for a vehicle, which can automatically open and close a sliding door of a vehicle or the like by driving a motor.

[0002]

2. Description of the Related Art Conventionally, a vehicle slide door opening / closing device in which a slide door supported by a vehicle body so as to be slidably openable / closable is opened / closed by a drive source is connected to the drive source and provided on the vehicle body. A cable movable along the guide track is connected to the sliding door, and connected to a moving member movably engaged with the guide track,
By operating the driving source, the moving member is moved along the guide track via the cable, and the door is opened and closed.

[0003]

In a conventional sliding door opening / closing device for a vehicle, the moving member is pivotally mounted substantially at the center thereof and rolls on the bottom surface of the guide track to support the weight of the sliding door. The first roller and the first roller are pivotally mounted at a position above the rotation axis of the first roller before and after the first roller, and roll between the upper and lower side surfaces of the guide track to reduce the load in the width direction of the slide door. Since the moving member is provided with the second roller before and after the support and the portion where the cable is connected is a portion extended forward and backward from the second roller so as not to vertically overlap the second roller before and after. However, there is a problem that it becomes longer.

The present invention has been made in view of the above-mentioned problems of the prior art, and is intended to reduce the size and weight of a moving member slidably engaged with a guide track and connected to a cable. An object of the present invention is to provide a sliding door opening and closing device.

[0005]

According to the present invention, the above-mentioned problem is solved as follows. (1) In a vehicle sliding door opening / closing device in which a sliding door supported to be openable and closable along a guide track provided on a vehicle body is opened and closed by a motor drive, a door drive unit having a forward / reverse motor. And, while being connected to the door drive unit so that it can be sent out,
A cable for opening and closing that can be routed inside the guide track, and a cable for closing, coupled to the slide door, and movably engaged with the guide track in the opening and closing direction,
A moving member having a cable connecting portion to which a cable for opening and a cable for closing are connected, wherein the moving member includes a first roller that can roll on the bottom surface of the guide track, A second roller which is rotatable between both side walls of the guide track; and a cable connecting portion is provided above the first roller and the second roller.

(2) In the above item (1), the terminal member connected to the terminals of the opening cable and the closing cable is
Engage with the cable connection so as to face each other.

(3) In the above item (2), the cable connecting portion is provided with a coil spring for urging the door opening cable and the door closing cable in the pulling direction.

[0008]

Since the cable connecting portion is formed above the first roller and the second roller and formed on the moving member, the length of the moving member in the moving direction can be reduced.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a vehicle provided with a sliding door to which the present invention is applied. (1) is a vehicle body panel of the vehicle, and (2) is a sliding door (hereinafter, referred to as “opening and closing”) mounted on the vehicle body panel (1). The door opening of the vehicle body panel (1)
a) The upper track (3) provided on the upper edge, the lower track (4) provided on the lower edge, and a plurality of bolts (44) fixed near the waist of the rear body panel (1), and the guide The door opening (1) shown in FIG. 3 is guided by the truck (5).
From a fully closed position where a) is closed, a position between a fully open position shown in FIG. 4 in which the vehicle moves slightly outward from the outer surface of the vehicle body panel (1) and moves rearward in parallel with the side surface of the vehicle body panel (1). It can be opened and closed.

When the door (2) is at the fully closed position,
The door lock (2a) provided in (2) engages with a striker (not shown) fixed to the vehicle body panel (1), whereby the door is held at the fully closed position.

(10) is mounted on the vehicle body panel (1) behind the door opening (1a), and as shown in FIG.
A door drive device that is equipped with 1), a guide track (5) and a door drive cable member (12), and automatically opens and closes the door (2) by motor drive. The overall shape is almost U-shaped in plan view. , In the assembly process before mounting on the body panel (1),
Each of them is connected to each other in advance.

The motor drive section (11) is arranged between the vehicle body panel (1) and the inner panel (1d) on the indoor side.
The door drive cable member (12) is extended from the motor drive unit (11), and is provided with a mounting hole formed in the rear of the vehicle body panel (1).
(1c), discharged to the outside of the vehicle, reciprocating along the guide truck (5), and the door opening cable (12a) and the closing cable ( 12b)
And

As shown in FIG. 5, the door drive unit (11) is rotated forward and backward by an operation switch provided on a driver's seat or the like on a base plate (11a) fixed to the indoor side of the vehicle body panel (1) with bolts or the like. A motor (13), a drive pulley to which the rotational force of the motor (13) is transmitted at a reduced speed, and an electromagnetic force that is excited when the motor (13) is driven to connect the motor (13) and the drive pulley. It is composed of a fixed speed reduction unit (14) with a built-in clutch.

A door opening cable (12a) and a door closing cable (12b) of a door drive cable member (12) are sent out and wrapped around a drive pulley rotatably incorporated in the reduction section (14). Turned, the door drive cable member (12)
It is fed out of the housing (14a) of the reduction section (14).

The guide track (5) is integrally formed of a drawn material of aluminum light alloy, and has a U-shaped cross section with an open outer side as shown in FIG. 7, and has a bottom surface (5c) and a bottom surface (5c).
A side wall (5f) erecting from the side wall (5c), a side wall (5d) erecting a predetermined amount from the opening side edge of the bottom surface (5c), and a side wall (5f) protruding from the side wall (5f). 5e) is formed, and a cable guide groove (5b) is formed on the back side of the bottom surface (5c) and has an opening at the bottom and through which the door closing cable (12b) is inserted. A curved portion (5a) is formed in front of the guide track (5) to bend toward the inside of the vehicle and guide the door (2) to the fully closed position.

At the tip of the curved portion (5a), a front guide member (2
6) is installed. The front guide member (26) is shown in FIGS.
As shown in FIG. 10, a door-closing cable (12 b) pivotally supported by a base plate (26 b) with a horizontal axis (23) and extending from a cable guide groove (5 d) is guided to make a U-turn forward. 1 Front pulley (22) and base plate (2
6b) with a shaft (24) oriented vertically, and a door closing cable (12b) hung above the first front pulley (22).
Front pulley (25) for guiding the guide rail into the guide track (5)
And a front housing (26a) that covers the first and second front pulleys (22, 25). The base plate (26b) of the front guide member (26) is fixed to the vehicle body panel (1) with bolts (45).

To prevent the door opening cable (12a) and the door closing cable (12b) from directly sliding on the curved surface of the guide track (5), an inner wall (5f) of the curved portion (5a) is provided. A sliding contact member (42) made of a synthetic resin having excellent wear resistance for smooth sliding contact between the opening cable (12a) and the closing cable (12b) is fixed. The sliding member (42) has a plurality of claw portions projecting from the back surface.
(42a) is fixed to the guide track (5) by engaging the hole (5g) formed in the guide track (5).

A rear guide member (30) is mounted on the rear end of the guide track (5). Rear guide member (30)
As shown in FIGS. 12 and 13, upper and lower first rear pulleys (28) rotatably supported by a vertical axis (27) and a second
The vehicle includes a rear pulley (29) and a rear housing (30d) that covers both pulleys (28) and (29).

The rear housing (30d) is fitted into the mounting hole (1c) of the vehicle body panel (1) from the indoor side and is inserted into the rear end of the guide track (5).
Engages the hole (5h) drilled in the rear housing (30d)
(30a) having a claw portion (30e) for fixing the door to the guide track (5), a flange portion (30b) overlapping the vehicle body panel (1) from the indoor side, and a door driving portion (11). The opened cable (12a) and closed cable (12b) to the rear housing.
(30d). Tsubabe (3
0b) and the mounting hole (1c), a seal body (31) of an elastic material is provided.
The arrangement prevents rainwater from entering the room through the mounting hole (1c).

(32) shown in FIG. 14 is a rear housing (30d).
A detection rod (32a) that is slidably supported in the front-rear direction and that can protrude and retract in the guide track (5) from the fitting part (30a).
The slider (33) is provided between the rear surface of the slider (32) and the rear housing (30d), and the slider (3
A spring that urges 2) in the protruding direction.

The slider (32) is always in the protruding position indicated by the solid line in FIG. 14, and when the door (2) moves to the position close to the fully closed position by opening the door, the slider (32) is connected to the door (2) at that time. The moving member (35) is pushed by the movement from (I) to (II) shown by the imaginary line in FIG. 14 and is moved to the immersion position shown by the imaginary line in FIG.

A check switch (34) detects a fully open position of the door (2) when the slider (33) moves from a protruding position to a retracted position, and detects the fully open position of the motor (13). And shut off the power supply to the electromagnetic clutch and stop the door (2) at the fully open position.

The moving member (35) is movably engaged with the guide track (5) along the front-rear direction, and has a substantially U-shaped cross section as shown in FIG. A base plate (35a) connected to the side and a base plate (35a) pivotally mounted on the base plate (35a) with a horizontal axis (37), and roll on the bottom surface (5c) of the guide track (5) to weigh the door (2). As shown in FIG. 8, a first roller (35b) supporting the first and second rollers (35b) is pivotally mounted on a base plate (35a) with front and rear shafts (38) in front and behind the first roller (35b). ) The second roller (35c) before and after that can roll between both side walls (5d) and (5e)
And a cylindrical cable connecting portion (36) which is provided above the first roller (35b) and the second roller (35c), and to which the door-opening cable (12a) and the door-closing cable (12b) are connected from the front-back direction. ).

At the outlet side of the cable connecting portion (36), as shown in FIG. 11, an inclined portion (36a) whose hole diameter gradually increases outward.
Are formed.

The opening cable (12a) and the closing cable (12b) sent out from the drive pulley of the door drive section (11).
Is guided from the indoor side by the rear guide member (30), passes through the mounting hole (1c), and is guided into the guide track (5) from the rear end of the guide track (5).

The door opening cable (12a) is guided by the upper first rear pulley (28), extends forward in the guide track (5), and is connected to the cable connecting portion (36) of the moving member (35). Have been.

The door closing cable (12b) is guided by the lower second rear pulley (29), is inserted into the cable guide groove (5b) from the rear end of the guide track (5), and extends forward, and is guided. At the front end of (5), the first front pulley (22) guides rearward in a U-turn to guide the track (5).
Cable connecting part of the moving member (35)
(36).

Opening cable (12a) and closing cable
Terminal members (12c) (12d) fastened to the respective terminals of (12b)
Are inserted into the cable connecting portion (36) from the front-rear direction so that the door-opening cable (12a) and the door-closing cable (12b) are connected to the moving member (35). Between each end member (12c) (12d) and each end of the cable connecting portion (36), the door opening cable (12a) and the door closing cable (12b) are urged in a tensioning direction. Further, coil springs (43) for absorbing the respective slacks are interposed.

The moving member (35) is connected to the door (2) via the hinge arm (39), and is used for opening the door opening cable (12a) or closing the door by rotating the motor (13) of the door driving section (10). Cable (12
The guide track (5) is moved forward or backward by the pulling force of (b), and the door (2) is moved in the door opening direction or the door closing direction.

The hinge arm (39) includes a rail-side arm (39a) connected to the base plate (35a) of the moving member (35),
A door-side arm (39b) coupled to the rail-side arm (39a) rotatably with a shaft (41) and coupled to the door (2); After fixing to the body panel (1) through the mounting hole (1c) of 1),
Connect the rail side arm (39a) to the base plate (35a) with bolts (4
0).

When the operation switch provided near the driver's seat is opened in the fully closed state shown in FIG.
(2a) is disengaged from the striker, and at the same time the motor (13) rotates forward, the electromagnetic clutch provided in the speed reducer (14) is excited, and the rotational force of the motor (13) is reduced by the drive pulley. The cable for door opening (12a) is entangled, and the cable for door closing (12b) is sent out.

When the door opening cable (12a) is entangled,
The door opening cable (12a) is pulled in the guide track (5) to move the moving member (35) in the door opening direction, and the door (2) is forcibly moved in the door opening direction.

When the door (2) reaches a position just before the fully open position, the slider (32) is pushed by the moving member (35), and is moved from the protruding position shown in FIG. 14 to the immersion position. (34) detects the fully open position of the door (2), cuts off the power supply to the motor (13) and the electromagnetic clutch, and stops the door (2) at the fully open position.

In the fully open state shown in FIG. 4, when the operation switch is operated to close the door, the motor (13) reversely rotates,
The torque of the motor (13) is transmitted to the drive pulley via the electromagnetic clutch, and the closing cable (12b) is caught,
And the door opening cable (12a) is sent out.

The closing cable (12b) is a guide track
By being pulled in the guide track (5) through the guide groove (5b) of (5), the moving member (35) moves in the door closing direction and forcibly moves the door (2) in the door closing direction. Let it. For example, as shown in FIG. 11, the moving member (35) is
When the cable reaches (5a), the cable for opening the door (12a) and the cable for closing the door (12b) are guided by the inclined portion (36a) provided at the exit side of the cable connecting portion (36), and the cable is gently moved. Breaking out of the connecting portion (36) prevents breakage.

When the cable for opening the door (12a) on the side to be sent out becomes loose, the urging force of the coil spring (43) provided on the cable for opening the door (12a) causes the cable in the cable connecting portion (36) to be loosened. Terminal member (12c) of opening cable (12a)
Moves to the terminal member (12d) side of the door closing cable (12b),
The slack of the door opening cable (12a) is absorbed.

Conversely, when the door is opened, the door-opening cable (12a) is pulled and the door-closing cable (12b) on the side to be sent out is pulled.
When the slack occurs on the side, the terminal member (12d) moves toward the opposite terminal member (12c) by the urging force of the coil spring (43), and the slack of the door closing cable (12b) is absorbed.

When the door (2) reaches the fully closed position, the door lock (2a) engages with the striker, is held at the fully closed position, and detects the engagement of the door lock (2a). The power supply to the motor (13) and the electromagnetic clutch is interrupted by (not shown).

[0039]

According to the present invention, the following effects can be obtained. (a) Since the cable connection portion is formed above the first roller and the second roller and formed on the moving member, the length of the moving member in the moving direction can be shortened, and the guide track can be shortened. (All claims).

(B) Since the terminal members of the opening cable and the closing cable are engaged with the cable connecting portion so as to face each other, the slack of each cable can be efficiently absorbed by the coil spring. Items 2 and 3).

[Brief description of the drawings]

FIG. 1 is an external perspective view of an automobile to which the present invention is applied.

FIG. 2 is a perspective view of a main part viewed from the inside of the vehicle.

FIG. 3 is a schematic cross-sectional plan view of a main part of the vehicle when the door is at a fully closed position.

FIG. 4 is a schematic cross-sectional plan view of a main part of the vehicle when the door is at a fully open position.

FIG. 5 is a perspective view of the door driving device with a part cut away.

FIG. 6 is a plan view of the door driving device.

FIG. 7 is an enlarged sectional view taken along the line AA in FIG. 6;

FIG. 8 is a sectional view taken along line BB in FIG. 7;

FIG. 9 is a cross-sectional plan view of the front guide member.

FIG. 10 is a sectional view taken along line CC in FIG. 9.

FIG. 11 is a cross-sectional plan view of the guide track when the moving member moves to the bending portion.

FIG. 12 is a cross-sectional plan view of a portion provided with a rear guide member.

13 is a sectional view taken along line DD in FIG. 12.

FIG. 14 is a cross-sectional plan view showing the internal structure of the rear guide member.

[Explanation of symbols]

 (1) Body panel (2) Sliding door (5) Guide truck (11) Door drive (12a) Cable for opening door (12b) Cable for closing (12c) (12d) Terminal member (13) Motor (35) Moving Member (35b) 1st roller (35c) 2nd roller (36) Cable connection (43) Coil spring

Claims (3)

(57) [Claims] A sliding door opening and closing device for a vehicle, wherein a sliding door supported to be openable and closable along a guide track provided on a vehicle body is opened and closed by a motor drive. The drive unit and the door drive unit are connected to the door drive unit so that they can be wound around and sent out, and can be routed inside the guide track. A moving member having a cable connecting portion to which the door-opening cable and the door-closing cable are connected, the first roller being capable of rolling on the bottom surface of the guide track, A second roller disposed before and after the first roller and capable of rolling between both side walls of the guide track; A sliding door opening and closing device for a vehicle, wherein the opening and closing device is provided above a roller and a second roller. 2. The sliding door opening and closing device for a vehicle according to claim 1, wherein the terminal members connected to the terminals of the cable for opening the door and the cable for closing the door are opposed to each other and are engaged with the cable connecting portion. 3. The sliding door opening / closing device for a vehicle according to claim 2, wherein a coil spring for urging the opening cable and the closing cable in a pulling direction is provided at the cable connecting portion.