JPH0543177Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field]

This invention relates to an automatic opening device for doors such as side doors in automobiles, and particularly relates to an automatic opening device for doors opened and closed by a four-link door hinge using a four-bar rotation link.

[Conventional technology]

Conventionally, as a door hinge for a side door of an automobile, there is a so-called 4-link door hinge that utilizes a 4-bar rotation link, as shown in FIG. This 4-link door hinge consists of a body side base 2 attached to the outer surface of a body, for example, a front pillar 1, and a front end panel 4 of a side door 3.
a door-side base 5 attached to the body-side base 2; and a rotating shaft 2 attached to two spaced points on the body-side base 2.
A, 2B, rotating shafts 5A, 5B that are separately attached to the door side base 5, an outer link 6 whose both ends are rotatably connected to the rotating shafts 2A and 5A, respectively, and rotating shafts 2B, 5B. and an inner link 7 rotatably attached to both ends thereof. Here, in the four-link door hinge shown in FIG.
Each of B has an upper and lower pair, and a corresponding pair of upper and lower rotary outer links 6 and inner links 7 are provided. A 4-link door hinge using such a 4-section rotating link allows the side door 3 to open while sliding forward without protruding significantly outward from the outer surface in the width direction of the vehicle body when the side door 3 is opened. Therefore, the side space required for opening and closing the door when getting in and out of the automobile may be small, and the ease of getting in and out of the vehicle is improved.

[Problem that the invention attempts to solve]

Furthermore, in order to improve the ease of getting on and off, it is possible to use a side door opening/closing device that is conventionally used in taxis, etc., but the side door, which is opened and closed by a 4-link door hinge, has a trajectory when it is opened. However, since the connecting rod moves largely toward the outside and the front of the vehicle, the connecting rod for transmitting the driving force of the opening/closing device to the side door becomes inclined with respect to the side door, resulting in a problem that it cannot be applied. This invention was made in view of the above-mentioned problems, and an object thereof is to provide an automatic door opening device that can automatically open a door using a 5-link door hinge.

[Means to solve the problem]

This invention includes a body-side base attached to the body, a door-side base attached to the door, a body outer-side rotating shaft and a door outer-side rotating shaft supported on the outer sides of the body-side base and the door-side base, a body inner side rotating shaft and a door inner side rotating shaft supported on the inner sides of the body side base and the door side base; an outer link having both ends rotatably connected to the pair of outer side rotating shafts;
In the automatic door opening device attached to the body side via a four-link door hinge including an inner link whose both ends are rotatably connected to the pair of inner rotation shafts, the door outer side rotation of the door side base is performed. Located on the body on the inner side of the shaft,
A rail whose distance from the door outer rotation axis changes depending on the rotation angle around the door outer rotation axis, and reciprocating movement along the rail between the rail and the door outer rotation axis. an opening position which is located between the door outer rotation shaft and the rail and pushes the door outer rotation shaft outward to a position where the door is opened by a certain amount; and a non-opening position which does not interfere with the door outer rotation shaft. an opening member that can selectively assume a position;
The above object is achieved by configuring an automatic door opening device including: a drive device that reciprocates the opening mechanism in this order from a non-opening position to an opening position to a non-opening position in one operation; It is. The opening mechanism includes a lever that is rotatably attached to the door outer side rotation shaft and whose tip slides on the rail, and the drive device includes a motor and a lever that reciprocates approximately in equilibrium with the rail by the motor. The above object is achieved by comprising a drive link that is moved, and a connecting rod that has one end connected to the drive link via a ball bearing and the other end swingably connected to the lever. The goal is to achieve the following.

[Effect]

In this invention, the opening member driven by the drive device pushes the door outward by a certain amount through the door outer rotation shaft in one operation of the drive device to open the door, and then returns to the current position. Therefore, the door can be opened and closed as desired, regardless of the opening member and its driving device. Further, the opening member is driven to the opening position by a connecting rod connected to the drive device via a ball bearing, and the connecting rod is driven by the ball bearing regardless of the opening degree of the door. The state connected to the drive device side is maintained.

【Example】

Embodiments of the present invention will be described below with reference to the drawings. In this embodiment, as shown in FIGS. 1 to 3, the vehicle 1
Side door 16 attached to the body 14 side of 2
A lever 18 is rotatably attached to the outer rotating shaft 16A on the door side of the 4-link door hinge 10, and a lever 18 is provided on the body-side base 20 of the 4-link door hinge 10 and attached to the free end of the lever 18. The roller 18A can be in rolling contact and the distance to the door outer side rotating shaft 16A is
an opening mechanism 2 comprising: a rail 22 that varies depending on the rotation angle of the lever 18;
4, and a drive device 26 that drives the opening mechanism to a non-opening position, an opening position, and a non-opening position in this order in one operation. Reference numeral 28 in the figure is a four-link door hinge 10 attached to the end panel 16C of the side door 16.
A door side base 16B is a door inner side rotation shaft mounted on the door side base 28 inside and parallel to the door outer side rotation shaft 16A;
30A is a body outer rotation shaft rotatably attached to the body base 20, 30B is a body inner rotation shaft, and 34 has both ends connected to the door outer rotation shaft 16A and the body outer rotation shaft 30A.
An outer link 36 is rotatably connected to the door and body inner side rotation shafts 16B, 30B.
2 shows an inner link whose both ends are rotatably connected. The drive device 26 includes a motor 38 , a drive link 40 that is swung by the motor 38 , one end of which is connected to the drive link 40 via a ball bearing 42 , and the other end of which is swung to the lever 18 . It consists of a connecting rod 44 that is freely connected. The motor 38 and the drive link 40 are arranged inside the panel of the side door 16, and the drive link 40
is pivotally supported at its lower end to the panel of the side door 16 by a bracket 46. The motor 38 has a motor arm 4 on its output shaft.
8, and the drive link 40 is provided with an elongated hole 50 that slidably engages with a pin 48A attached to the tip of the motor arm 48. The bracket 46 is mounted substantially vertically below the central rotational axis of the motor 38, and is configured to swing back and forth once every time the motor arm 48 of the motor 38 rotates once. The ball bearing 42 is mounted at an intermediate position of the drive link 40, and the connecting rod 44 extends through the end panel 16C of the side door 16.
It is arranged to protrude within the link door hinge 10. Next, the operation of the apparatus of the above embodiment will be explained. When a passenger gets on or off, the motor 38 is turned on,
Rotate this once. Motor arm 4 directly connected to the rotating shaft of motor 38
8 makes a half turn, the drive link 40, which is slidably connected to the pin 48A at the tip of the motor arm 48 through the elongated hole 50, is swung about the bracket 46. This swinging of the drive link 40 is caused by the ball bearing 42,
It is transmitted to the lever 18 via the connecting rod 44. When lever 18 is driven to the right in FIG. 3 by connecting rod 44, lever 1
The roller 18A provided at the tip of the roller 8 comes into rolling contact with the rail 22 of the body side base 20. Door outer side rotating shaft 1 with respect to this rail 22
The distance 6A varies depending on the rotation angle of the lever 18, and is such that the lever 18 is perpendicular to the rail 22 when the drive link 40 swings to its maximum extent. Therefore, the door outer side rotating shaft 16A is connected to the lever 1.
8, it is driven counterclockwise in FIG. 3 about the body outer side rotating shaft 30A, that is, in the opening direction of the side door 16. At this time, the door inner rotating shaft 16B of the door side door 16 is also swung counterclockwise about the body inner rotating shaft 30B in FIG. Therefore, the side door 16 is opened by an amount corresponding to an increase in the distance between the rail 22 and the door outer rotating shaft 16A, depending on the rotation angle of the lever 18. Further, the position of the roller 18A relative to the drive link 40 in the vertical direction in FIG. 3 changes, but this is absorbed by the ball bearing 42. Immediately after the side door 16 is opened, when the motor 38 makes the remaining half rotation, the drive link 40 is returned to the position indicated by the solid line in FIG. 3, ie, the original position, by the motor arm 48. Therefore, the lever 18 is also pushed back clockwise around the door outer rotating shaft 16A via the connecting rod 44. At this time, the lever 18 is moved to the door outer side rotating shaft 1.
Since it only idles around 6A, it does not affect the opening degree of the side door 16 in any way. From this open state, the side door 16 can be freely opened and closed manually by the occupant according to a normal opening and closing trajectory. Further, at the time of opening and closing, the outer link 34 is swung around the door outer side rotating shaft 16A, but since the lever 18 is free with respect to the door outer side rotating shaft 16A, the opening mechanism 24 and the driving mechanism 2
6 does not obstruct the free opening and closing of the side door 16. In this embodiment, the side door 16 can be automatically opened to any position without hindering the free opening and closing of the side door 16. Note that in the above embodiment, the release mechanism 24 is connected to the lever 1.
8. It is configured including a rail 22,
The present invention is not limited to this, and the opening mechanism includes an opening position in which the door outer rotation shaft is pushed outward to a position where the side door 16 is opened by a certain amount;
Any device may be used as long as it includes an opening member that can selectively take a non-opening position that does not interfere with the door side member. Therefore, for example, as shown in FIG. 4, it fits between the door outer rotating shaft 16A and the rail 22, and is not attached to the door outer rotating shaft 16A, but only to the connecting rod 44. The opening member 52 thus supported may be driven back and forth by the connecting rod 44. In this case, a member is required to guide the opening member 52 along the rail 22 so that it can always maintain a contact state. Further, the drive device 26 for driving the opening mechanism 24 is composed of a motor 38, a drive link 40, a ball bearing 42, and a connecting rod 44, but the present invention is not limited to this. Any mechanism may be used as long as it can reciprocate the opening mechanism from the non-opening position to the opening position and then back to the non-opening position in one operation.

[Effect of the idea]

Since the present invention is constructed as described above, it has an excellent effect in that a door using a four-link door hinge can be opened automatically, and after opening, it can be manually opened and closed as desired.

[Brief explanation of drawings]

Fig. 1 is a side view showing an automobile equipped with an automatic door opening device according to the present invention, Fig. 2 is a perspective view showing an embodiment of the automatic door opening device, and Fig. 3 shows the main parts of the same embodiment. FIG. 4 is an enlarged plan view similar to FIG. 3 showing the second embodiment of the present invention;
The figure is a plan view showing the process of opening and closing a door using a conventional four-link door hinge. 10...4-link door hinge, 12...automobile, 14...body, 16...side door, 16
A... Door outer side rotating shaft, 16B... Door inner side rotating shaft, 18... Lever, 20... Body side base, 22... Rail, 24... Opening mechanism, 2
6... Drive device, 28... Door side base, 30A
...Body outer side rotating shaft, 30B...Door inner side rotating shaft, 34...Outer link, 36...Inner ink, 38...Motor, 40...Drive link, 42...Ball bearing, 44...Connecting groove Do, 52...Opening member.

Claims (1)

[Claims for Utility Model Registration] (1) A body side base attached to the body, a door side base attached to the door, and a body outer side rotating shaft supported on the outer sides of the body side base and the door side base. and a door outer rotating shaft, a body inner rotating shaft and a door inner rotating shaft supported on the inner sides of the body base and the door base, and an outer whose both ends are rotatably connected to the pair of outer rotating shafts. and an inner link having both ends rotatably connected to the pair of inner rotating shafts. a rail that is arranged on the body on the inner side of the door outer rotation axis and whose distance from the door outer rotation axis changes depending on the rotation angle around the door outer rotation axis; and a rail and the door outer rotation axis. The door outer rotating shaft is positioned between the door outer rotating shaft and the rail to a position where the door is opened by a certain amount. an opening mechanism including an opening member that can selectively take an open position and a non-opening position that does not interfere with the door outer rotation axis; a single operation moves the opening mechanism to the non-opening position, the open position, and the non-opening position; An automatic door opening device comprising: a drive device for reciprocating the position in this order; (2) The opening member is rotatably attached to the door outer side rotating shaft, and includes a lever whose tip slides in sliding contact with the rail, and the drive device includes:
a motor, a drive link that is reciprocated approximately parallel to the rail by the motor, and a connector that has one end connected to the drive link via a ball bearing and the other end swingably connected to the lever. An automatic door opening device according to claim 1, characterized in that the door automatic opening device is comprised of a locking rod.