JP2006009400A - Automatic opening/closing apparatus for vehicle door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To maintain a half-open state of a vehicle door in manual opening/closing in an automatic opening/closing apparatus for the vehicle door capable of being also manually opened/closed. <P>SOLUTION: A door check 1 is functioned in the manual opening/closing by providing a door check rod 2 and a driving mechanism part 12. The rod 2 is mounted on the existing door check 1, and its leading end is pivotally attached to a pillar P of a vehicle body and inserted into a hinge-side end D1 of the door D in such a manner as to freely protrude from/recede into it. The mechanism part 12 is linked to the check rod 2 so that the check rod 2 can make a protruding/receding motion, and linked to the driving source 11 via the clutch 10. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an automatic opening and closing device for a vehicle door that can be opened and closed manually.

Conventionally, this type of automatic opening / closing device removes a door check (see Patent Document 1) already installed on the door, and as disclosed in Patent Document 2, a push rod that can be moved in and out from the hinge side end of the door. The leading end of the clutch is pivotally attached to the pillar of the vehicle body, and the base end of the push rod is pivotally attached to the upper end of the arm that swings back and forth in accordance with the direction of protrusion and disengagement, and the clutch is linked to the drive source. It is linked to the transmission mechanism provided on the side.
Then, in a state where the drive source and the transmission mechanism unit are connected by the clutch, the door is automatically opened and closed by swinging the arm by swinging the arm, and between the drive source and the transmission mechanism unit by the clutch. The door can be opened and closed manually with the connection cut off.
Japanese Patent Laid-Open No. 2-26682 (FIG. 8) JP 58-189493 A

However, since the automatic opening / closing device using the push rod does not have a door check, the door cannot be held at a predetermined opening during manual opening / closing. , The door is inadvertently opened or closed.

The present invention is equipped with a door check rod that is installed in an existing door check and whose tip is pivotally attached to the pillar of the vehicle body and that is freely inserted into and retracted from the hinge side end of the door, and the door check rod is moved in and out. By providing a vehicle door automatic opening and closing device provided with a transmission mechanism portion connected to a drive source via a clutch, the door check functions when manually opening and closing, and the above problems are solved. Resolve.
In addition, the transmission mechanism portion is a circle that meshes with a base end of the door check rod and an output gear that is reciprocally arranged on a horizontal plane parallel to the door check rod and connected to a drive source via a clutch. By connecting the arc rack with a single link that transmits and reciprocates the reciprocating movement of the rack in the direction in which the door check rod extends and retracts, the reciprocating movement of the operating rack is linked by the driving force transmitted from the driving source. The door check rod can be transmitted to the door check rod efficiently and reliably through the door check, so that the door check can be carried out in the door check body in which a plurality of pairs of upper and lower engagement projections are provided between the end portions. Engagement protrusions can pass through the door check body reliably by widening the vertical spacing of the rollers against the pressing force of the upper and lower rollers biased to press the rod up and down. And, to improve the automatic opening and closing of the door.

In short, in the invention according to claim 1, the transmission mechanism for moving the door check rod provided in the door check in and out is connected to the drive source through the clutch using the existing door check. By connecting the drive source and the transmission mechanism unit, the driving force of the drive source can be transmitted directly to the door check rod via the transmission mechanism unit to automatically open and close the door.
In addition, by disconnecting the connection between the drive source and the transmission mechanism with a clutch, the door can be manually opened and closed in the same manner as a general vehicle not equipped with an automatic opening / closing device, with the door half open. Even if left unattended, the state can be maintained by the door check function, and it is safe without the door being fully opened or closed as before.
Furthermore, since the automatic opening / closing device of the present invention uses an existing door check, a conventional automatic opening / closing device using a push rod has a door check rod insertion hole at the end of the hinge side of the door depending on the vehicle type. In addition, it is possible to eliminate the trouble of attaching the push rod after removing the door check, making the installation work easy and improving the work efficiency.
In addition, in the conventional device using the push rod, the push rod which does not match the door in the door open state was exposed and looked bad, but in the present invention, since the existing door check rod is used,
Unlike the above-mentioned general vehicles, the appearance when the door is opened is not inferior, and it is not necessary to discard the door check. Therefore, the cost required for the disposal process can be saved and the resource can be saved.

In the invention according to claim 2, the base end of the existing door check rod and a horizontal plane parallel to the base end of the door check rod are reciprocally disposed, and an arcuate shape meshed with an output gear connected to a drive source via a clutch The rack is pivotally connected by a link that converts the reciprocating movement of the rack to the direction in which the door check rod moves, so that the driving force from the driving source can be efficiently and reliably transmitted to the rack engaged with the output gear by the clutch. In addition, since the link can be reciprocated so that the door check rod protrudes and retracts at the hinge side end of the door in response to the reciprocation of the rack, the driving force from the drive source can be sufficiently transmitted to the door check rod. The door check rod advances and retreats in the door check body with the roller against the clamping force of the roller that presses the door check rod from above and below. That is, the engagement protrusions provided on the upper and lower sides of the door check rod can easily pass through the door check body with a driving force sufficient to increase the distance between the upper and lower rollers against the pressing force of the upper and lower rollers. The door can be automatically opened and closed using the door check.
Further, according to the present invention, even when the door is manually opened and closed, the original role of the door check is not impaired, so that the door can be held at a predetermined opening degree. In addition to the rack connected to the door check rod via the link, the clutch and the drive source can be arranged close to the door check rod. In addition, the entire apparatus can be installed in a compact manner, and its practical effect is significant, such as easy installation space.

Embodiments of the present invention will be described below with reference to the drawings.
Fig. 1 is a plan view of an automatic opening / closing device built in a door of a vehicle, Fig. 2 is a simplified side view with a part of the automatic opening / closing device broken, Fig. 3 is an enlarged view of Fig. 2, and Fig. 4 is an automatic opening / closing when the door is opened. A top view of the device is shown.
This automatic opening / closing device utilizes a door check 1 already installed in the vehicle, and this door check 1 has a plurality of upper and lower engagement protrusions 2a between a distal end and a proximal end of a bar having a predetermined length. It consists of a door check rod 2 formed in a bulging manner and a door check main body 3 for inserting and supporting the door check rod 2.

The front end of the door check rod 2 is pivotally attached to the pillar P of the vehicle body, and is inserted into the hinge side end D1 of the door D so as to be freely retractable. The door check main body 3 penetrates the hinge side end D1 of the door D. Cover body 5 provided with insertion passage 4 so as to be continuous with insertion hole D2 of provided door check rod 2
Is fixed inside the hinge side end D1.
The door D is rotatably connected to the pillar P of the vehicle body by a hinge H.
In the cover body 5, a roller 6 that rolls the upper and lower surfaces of the door check rod 2 above and below the insertion path 4, and a bearing that rotatably supports the roller 6 and slides up and down in the cover body 5. 7, and a spring material 8 interposed between each bearing 7 and the upper and lower surfaces of the cover body 5 are provided, and the upper and lower rollers 6 via the bearing 7 are connected to the door check rod 2 by the spring material 8. It is urged to press each of the upper and lower surfaces.
A stopper 9 larger than the inlet 4a of the insertion passage 4 of the cover body 5 is projected on the base end side of the door check rod 2 so that the stopper 9 abuts on the peripheral surface of the inlet 4a in the cover body 5 when the door is fully opened. It is made up of.

The automatic opening / closing device is configured to connect the door check rod 2 so as to move in and out, and is provided with a transmission mechanism portion 12 connected to the drive source 11 via the clutch 10, and the transmission mechanism portion 12 includes the door check rod 2. And the arc-shaped rack 14 meshed with the output gear 13 are arranged so as to reciprocate on a horizontal plane parallel to the door check rod 2 in the vertical direction. The output gear 13 is pivotally connected by a link 15 that is converted and transmitted in accordance with the direction of appearance.
Is connected to the driven side of the clutch 10 through a gear reduction device 16.

The gear reduction device 16 is configured by arranging a small gear 18 pivotally attached to the upper end of the driven shaft 17 of the clutch 10 and a large gear 19 engaged with the small gear 18 on the same horizontal plane, and the large gear 19 is an output gear. It is coaxial with 13 and placed below it.
The driven shaft 17 penetrates the lower layer base 20 horizontally disposed in the door D from below, and the lower layer base
The upper and lower ends of the large gear 19 and the support shaft 22 of the output gear 13 are rotatably supported by the lower layer base 20 and the upper layer base 23 arranged in parallel above this. .
The rack 14 has a tooth portion that meshes with the output gear 13 on the inner side of the arc, the tooth portion is directed toward the inside of the door D, and is slidably disposed on the upper surfaces of the large and small gears 18 and 19.
In the rack 14, a convex shaft 24 protrudes upward from the tip adjacent to the door check rod 2, and the base end of the link 15 is pivoted to the convex shaft 24, and the tip is pivoted to the base end of the door check rod 2. I wear it.
The upper layer base 23 is formed with an arc groove 25 along the locus of the convex shaft 24 that is reciprocated along the rack 14, and the upper layer base 23 corresponding to the inner side of the arc of the arc groove 25 has a rack on the upper surface. At the initial stage of the forward movement 14 and at the end of the backward movement, a restriction plate 26 is erected so that the link 15 transmits the reciprocating movement of the rack 14 in accordance with the direction in which the door check rod 2 protrudes and retracts.
Further, an arcuate guide member 27 that slides and guides the outer surface of the arc of the rack 14 is fixed to the lower part of the upper layer base 23 so as to protrude.

The drive source 11 includes an electric motor equipped with a clutch 10 and is fixed by a bracket (not shown) disposed in the door D.
Further, the drive source 11 has a thin circular step 28a formed on a flat surface 28 provided on the frame, and a drive shaft 29 protrudes upward from the center of the step 28a. The sun gear 30 is attached to the shaft.
The clutch 10 has a disc-shaped carrier placed on the flat surface 28 so that the sun gear 30 is loosely fitted at the center and the stepped portion 28a is rotatably fitted and rotated around the stepped portion 28a. 31 is provided.
On the upper surface of the carrier 31, a support shaft 35 that pivotally supports each of a plurality of planetary gears 34 with a cam provided with a tooth portion 32 that meshes with the sun gear 30 and a cam portion 33 that does not have teeth is provided upward. A planetary gear 34 with a cam is rotatable about the support shaft 35, and the planetary gear 34 with a cam is covered with an output shaft case 36.

The output shaft case 36 has a friction surface with the cam portion 33 of the planetary gear 34 with a cam at the lower peripheral edge of the circular base 37.
An outer ring 39 having an inner side 38 is projected, and a driven shaft 17 is projected upward from the center of the circular base 37. A lower end of the driven shaft 17 has a drive shaft 29 projecting upward from the sun gear 30. The tip is inserted rotatably.
Further, around the planetary gear 34 with a cam, the tooth portion 32 is provided corresponding to a predetermined inferior arc centered on the support shaft 35, and presses the friction surface 38 of the outer ring 39 continuously at both ends of the tooth portion 32. Pre-shaped cam surface 33
a, 33b is formed, and between the cam surfaces 33a, 33b, the tooth portion 32 and a portion that is substantially symmetrical in the diameter direction,
A subarc having a radius centered on the support shaft 35 and not inscribed in the friction surface 38 is formed.
The driven shaft 17 (output shaft case 36) can rotate freely with respect to the drive shaft 29 in a state where the cam portion 33 is not in pressure contact with the friction surface 38 of the outer ring 39. Is set.

When the drive gear 11 is activated and the sun gear 30 rotates until the planet gear 34 with cam contacts the friction surface 38 of the outer ring 39, the rotation of the planet gear 34 with cam is stopped, and the cam portion 33 is
In order to press-contact the friction surface 38 of 39, the outer ring 39 is integrally connected to the sun gear 30 together with the carrier 31 pivotally supporting the cam geared planetary gear 34, and the rotation of the drive shaft 29 is Driven shaft
It is transmitted to 17.
Further, when the drive source 11 is stopped, the rotational force from the sun gear 30 is not transmitted to the planetary gear 34 with the cam, and the pressure contact with the friction surface 38 of the cam portion 33 is released, so the cam portion 33 and the friction surface 38 Thus, the driven shaft 17 (outer ring 39) is freely rotated.
The clutch 10 is not limited to the above-described configuration, and may be any configuration as long as the connection between the drive shaft 29 and the driven shaft 17 is interrupted.

In the automatic opening / closing apparatus configured as described above, when the door D is in the closed state, the door check rod 2 is immersed in the door D, and the rack 14 is kept in the retracted state.
When the door D is automatically opened, first, after the door D is unlocked by a lock releasing device (not shown) separately provided in the door D, the drive source 11 is activated.
As a result, the sun gear 30 rotates clockwise, and the planetary gear 34 with the cam meshing with the sun gear 30 rotates in the opposite direction to the sun gear 30 so that the cam surface 33a of the cam portion 33 is a friction surface of the outer ring 39. Since the rotational force from the sun gear 30 is continuously transmitted to the planetary gear 34 with the cam, the surface pressure of the cam surface 33a against the friction surface 38 increases, and the cam surface 33a presses the friction surface 38. The rotation of the planetary gear 34 with the cam is stopped, and the sun gear 30 and the outer ring 39 are integrated via the planetary gear 34 with the cam,
The rotational force of the sun gear 30 is transmitted to the output shaft case 36, and the output shaft case 36 is a planetary gear with a cam.
It rotates in the same direction as the sun gear 30 together with the carrier 31 supporting the shaft 34 (see FIG. 5).
Accordingly, the small gear 18 mounted on the driven shaft 17 rotates clockwise, and the output gear 13 coaxial with the small gear 19 rotates counterclockwise via the large gear 19 engaged therewith, and meshes with the output gear 13. The rack 14 is moved forward, whereby the door check rod 2 is moved via the link 15 to the hinge side end D of the door D.
1. Advance in the direction of projecting from 1, and open the door D.
At the initial stage of the forward movement of the rack 14, the link 15 moves along the restriction plate 26, so that the rack 14
When the link 15 is disengaged from the restricting plate 26 due to the forward movement of the rack 14, the link is made so as to correspond to the protruding direction of the door check rod 2.
15 bends and transmits the forward power of the rack 14 to advance the door check rod 2,
Since the rack 14 can always reliably transmit a constant forward power to the door check rod 2, the engagement protrusion 2 a of the door check rod 2 with the forward power resists the clamping force of the upper and lower rollers 6 and the distance between the rollers 6. The door D is automatically opened with certainty.

To automatically close the door D, the drive shaft 29 of the drive source 11 is rotated in the opposite direction.
As a result, the sun gear 30 rotates counterclockwise, and the planet gear 34 with a cam that rotates in the opposite direction is rotated.
The cam surface 33b of the cam portion 33 presses against the friction surface 38 of the outer ring 39, and the small gear 18 rotates in the same direction as the sun gear 30 and rotates the output gear 13 clockwise as described above. 14
The door check rod 2 is retracted in the direction of immersing the door D through the link 15.
At this time, the link 15 operates in the reverse procedure to that described above, so that the rack 14 always converts the constant motive power by the link 15 and transmits it to the door check rod 2 so that it can be retracted. The engagement protrusion 2a can pass through the insertion path 4 with the interval between the rollers 6 widened against the clamping force of the upper and lower rollers 6, and the door D can be automatically closed.

The door D can be manually opened and closed by stopping the drive source 11.
In such a state, when the drive source 11 is stopped, the rotational force of the sun gear 30 is not transmitted to the planet gear 34 with cam as in the operation thereof, and the cam surface 33a generated by the rotation of the planet gear 34 with cam or The surface pressure with respect to the friction surface 38 of the cam surface 33b has disappeared.
Therefore, even if the cam surfaces 33a, 33b and the friction surface 38 are in contact with each other when the drive source 11 is stopped, the output shaft case 36 is free to slide in contact with the cam surfaces 33a, 33b with a relatively light force. Thus, the connection between the driven shaft 17 and the drive shaft 29 is cut off, and the transmission mechanism portion 12 connected to the driven shaft 17 is disconnected.
The door D can be manually opened and closed because the operation is not restricted.
Further, when the door D is in the half open state, the engagement protrusion 2a of the door check rod 2 is held by the upper and lower rollers 6, and when the door D is fully opened, the stopper 9 contacts the peripheral surface of the inlet 4a in the cover body 5. This state is maintained.
Also, when the drive source 11 is stopped, the frictional resistance between the cam surfaces 33a, 33b of the cam portion 33 and the friction surface 38 of the outer ring 39 is large, so that more force is required to manually open and close the door D. Then, the sun gear 30 is slightly rotated in a direction opposite to that before the stop, and as shown in FIG. 6, the non-contact portion 8c of the planetary gear 34 with a cam is stopped so as to correspond to the friction surface 38, and the cam portion 33 is By being in a non-contact state with 39, the driven shaft 17 (output shaft case 36) can be freely rotated with a lighter force, and the door D can be manually opened and closed smoothly.
2 and 3 show a cross section of the clutch 10 corresponding to FIG.

It is a top view of the automatic opening / closing apparatus at the time of door full closure. It is the simplified side view which fractured | ruptured a part of automatic switchgear. FIG. 3 is an enlarged view of FIG. 2. It is a top view of the automatic opening / closing apparatus at the time of door opening. It is a top view of the clutch which fractured | ruptured the output shaft case partially when rotating a driven shaft clockwise. It is a top view of the clutch which partially fractured the output shaft case at the time of non-contact of the planetary gear with a cam.

Explanation of symbols

1 Door check 2 Door check rod
10 Clutch
11 Drive source
12 Transmission mechanism
13 Output gear
14 racks
15 Link D Door D1 Hinge side end P-pillar

Claims (2)

Equipped with an existing door check, the tip is pivotally attached to the pillar of the vehicle body, and the door check rod inserted into the hinge side end of the door so as to be able to move in and out is connected to move the door check rod in and out. And an automatic opening / closing device for a vehicle door, characterized in that a transmission mechanism connected to a drive source via a clutch is provided. Equipped with an existing door check, the tip of the door is pivotally attached to the pillar of the vehicle body, and the base end of the door check rod inserted into the hinge side end of the door so as to be freely retractable and parallel to the door check rod vertically A reciprocating arrangement on a horizontal plane and an arc-shaped rack meshed with the output gear are pivotally connected with a link that converts the reciprocating movement of the rack into the direction in which the door check rod protrudes and retracts, and the output gear is connected to the clutch. An automatic door opening and closing device connected to a drive source via

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