JPH0724268Y2 - Opening and closing mechanism of car door - Google Patents

Description

[Detailed Description of the Invention] (a) Field of industrial application The present invention relates to the opening and closing of a front door on the side opposite to the driver's seat in an automobile, particularly a one-box type automobile, which is structured to slide in the front-rear direction. Regarding the mechanism.

(B) Conventional technology In an automobile door that is structured to slide in the front-rear direction, a roller attached to the door is configured to move along a rail fixed to a body, and is slid rearward to perform an opening operation.

D Means for Solving the Problem Since a rail is required in the range in which the door slides, a door having such a structure cannot be adopted if there is another door at the rear. Therefore, it is conceivable to slide the door forward to open the entrance / exit, but this can not be solved with a structure in which the rail is fixed to the body, and as a result, the horizontal rail is fixed to the inner surface of the door and the horizontal rail is exposed. Not only will it look bad if left unattended, it will be dangerous if the skin touches it.

The present invention is an opening / closing mechanism for an automobile door that slides forward to open an entrance / exit, the structure of which is such that the base end is pivotally attached to the inside of the vehicle, which is the front edge of the entrance / exit. A slider, which is slidably coupled to a door along a horizontal rail fixed to the inner surface of the door, is attached to the tip of a horizontally rotating pivot arm, and a drive mechanism is provided above the horizontal rail. The horizontal rail of the door is provided in parallel with the horizontal rail, the upper edge of the rail cover of a size that covers the horizontal rail is fixed to the rotary axis, and the horizontal rail of the door is strengthened in order to strengthen the door supporting force. An auxiliary rail is provided below the rail in parallel with the horizontal rail, and the upper edge of the auxiliary rail cover, which is large enough to cover the auxiliary rail, is hingedly attached to the lower edge of the rail cover and is attached in a hanging shape.

E Action By rotating the arm, the door is pushed out, and if it is slid forward and backward, the entrance / exit opens greatly. When the door is closed, the horizontal rail can be covered with a cover to expose the horizontal rail as required.

F. Embodiment An opening / closing mechanism for an automobile door according to the present invention will be described with reference to the drawings.

1 is a one-box type car, and the floor opposite to the driver's seat has a footrest 2 with a step down,
When getting on and off, the feet are stepped. An entrance / exit 3 is opened on the side surface, and at the front edge of the opening / closing opening 3 of the entrance / exit 3, there are pivoting arms 4 and 4 ′ that are pivotally mounted in the vehicle at the front edge of the opening and horizontally pivot. A drive mechanism 5 is provided for applying turning force to the rotating arms 4, 4 '. The drive mechanism 5 is composed of a motor 5a and a speed reducer 5b. The rotating shafts 6, 6 are vertically supported by bearings 6a, 6a .. And one rotating shaft 6 is a link 7
And the base ends of the rotary arms 4, 4 are fixed to the upper portions of the rotary shafts 6, 6, and the tips of the rotary arms 4, 4, 4 ', 4'are rotated by the rotation of the motor 5a. A circular arc locus is drawn between the inside and outside of the opening to reciprocate. Reference numeral 8 denotes a door, and stators 9a and 9a of linear motors 9 and 9 which are horizontal rails are fixed to the inner surface of the door 8, and sliders 9b and 9b of the linear motor 9 have the rotating arms 4 and 4 respectively. The door 8 is attached to the front end of the rotary arm 4 and 4'and can be slid in the front-rear direction. Below the stator 9a, an auxiliary rail 10 is attached in parallel with the stator 9a, and the guide rail 10a attached to the tips of the rotating arms 4 ', 4'stiffens the door supporting force. Is increasing. A rail cover 11 is provided inside the door 8. The rail cover 11 is composed of a main cover 11a that covers the stator 9a and a sub-cover that covers the auxiliary rail 11, and an upper edge of the main cover 11a is fixed to a horizontally supported cover driving rotary shaft 12, and the main cover 11a. The lower edge and the upper edge of the sub-cover 11b are hinge-coupled to each other, so that the sub-cover 11b hangs down from the lower edge of the main cover 11a. When the cover driving rotary shaft 12 is rotated by the motor 12a, the main cover 11a moves to the cover driving rotary shaft 1.
The sub cover 11b follows the lower end of the main cover 11a in a hanging state while rotating 180 degrees about the fulcrum 2. As a result, when the door is closed, the stator 9a and the auxiliary rail 10 are covered so as not to be exposed, and retracted upward when the door is opened (Fig. 4b). A slide step plate 13 is provided on the floor surface of the footrest 2, and a universal joint 14 and a link mechanism 15 connected to the lower end of the rotary shaft 6 are used.
The door 8 is linked to the drive mechanism 5 and is slid outward at the same time as the door 8 is pushed outward so that a wide footrest area can be secured when getting on and off. An electromagnetic lock mechanism 16 is provided between the rotating arm 4'and the guide body 10a so that the protruding door can be maintained in that position and cannot be returned to the half-opened state. Further, the door 8 has a latch mechanism for maintaining the closed state of the door, a door lock mechanism for locking the latch mechanism, a receiver for receiving a signal from the key, and an electric mechanism 17 for operating both mechanisms by receiving the signal.
The a and 17b are installed, and the surface of the door is further equipped with an issuing diode lamp that notifies the operating status. A cable 18 for electrically connecting the electronic and electric devices installed in the door and a microcomputer mounted on the vehicle, which will be described later, is movably attached to a rail 19 arranged below the floor, and It is supported by a rotatable hook 19a to prevent damage due to repeated door opening / closing operations.

The opening and closing mechanism of the automobile door formed in this way is such that the receiver built in the door receives the signal transmitted from the key,
According to the program input to the microcomputer, it is operated while confirming the completion of each operation by a limit switch attached to each operation unit. First, when the open signal is received, the door lock is released, and then the latch mechanism is released. Then, the rotating arm 4 is rotated by the drive mechanism 5,
At the same time when the door 8 is pushed outward, the slide step plate 13 is pushed out (Fig. 2b). Here, the electromagnetic lock mechanism 16 is engaged, the slide cover 11 is opened upward (FIG. 1b), the door 8 is sent forward by the action of the linear motor 9, and the door is opened at the fully opened position. It is stopped (Fig. 1c, Fig. 2c). And when it receives the closing signal,
Contrary to the above operation, the door 8 is returned to the rear by the action of the linear motor 9, the electromagnetic lock mechanism 16 is released, and the drive mechanism 5 is released.
This causes the arm 4 to rotate in the opposite direction to complete the closing of the door 8 and the storage of the step plate 13 (FIGS. 1a and 2a). Then, the door is locked to display that the door is locked by the issued eye. An emergency stop mechanism is built into the program of this computer, and when the door receives the specific signal during the opening / closing operation, all drive mechanisms stop, and the opening / closing operation is restarted by receiving the specific signal again. There is.

Further, the step plate 13 and the door 8 are slidably connected to each other by a sliding connecting member 20 in the front-rear direction, and the door 8 is firmly supported by the mutual connecting action of the arms 4, 4'and the step plate 13. It is designed to prevent wobbling.

According to the opening / closing mechanism of the vehicle door of the present invention, it can be equipped with or without a rear door, and can slide on the inner surface of the door that can be opened with only a small space on the side of the body while the door is closed. The rail is not exposed and safety can be secured.

In this embodiment, by adopting the linear motor, the coupling mechanism of the door and the rotating arm can be achieved by utilizing the configuration of the linear motor, and smooth manual operation can be achieved simply by turning off the power of the linear motor. Although it is possible to
It is also possible to form a rack on the horizontal rail and attach a motor with a pinion gear to the tip of the rotating arm to enable the same operation. Also, I explained the series of opening and closing operations controlled by a microcomputer, but it can also be controlled by using a sequence circuit that operates based on the action of a limit switch that operates by the movement of an arm or door, and of course it can be manually opened and closed. It does not matter if it is possible. Further, the opening / closing mechanism of the door and the mechanism of the slide step plate are not limited to the embodiment, and the slide step plate and other foot rests can be omitted. And, in the future, as a development of the present invention, the door can be made to stick out to the side by a linear mechanism without rotating the arm, and when the door is closed, the slide step plate can be pulled in at the same time as it lifts to cover the foot rest, It is expected that the effective floor area in the car will be expanded in a plane.

Advantageous Effects of Invention According to the present invention, it is a door that can get on and off in a narrow space, has a large opening, and is highly safe in a vehicle, and covers or holds the horizontal rail fixed to the inner surface of the door as necessary. It is possible to provide an open / close structure that is exposed and is safe and has a beautiful appearance.

[Brief description of drawings]

1A to 1C are explanatory views showing an opening / closing mechanism of an automobile door according to the present invention as to a drive mechanism thereof, FIGS. 2A to 2C are operation explanatory diagrams of an automobile door and a slide step plate, and FIG. 3 is a slide step plate. 4A and 4B are explanatory views of the rail cover. 1 …… automobile, 2 …… footrest, 3 …… entrance / exit, 4 ……
Rotating arm, 5 ... Drive mechanism, 5a ... Motor, 5b ... Decelerating mechanism, 6 ... Rotating shaft, 7 ... Link, 8 ... Door, 9
...... Linear motor, 9a …… Stator, 9b …… Slider, 10
...... Auxiliary rail, 11 ...... Rail cover, 11a ...... Main cover, 11b ...... Sub cover, 12 ...... Cover driving rotation shaft, 12a ...... Motor, 13 ...... Slide step plate, 14 ...
… Universal joint, 15 …… Link mechanism, 16 ……
Electromagnetic lock mechanism, 17a, 17b ... Electric mechanism, 18 ... Cable, 19 ... Rail, 19a ... Hook, 20 ... Sliding connection,

Claims (2)

[Scope of utility model registration request] 1. A relative sliding movement of a door along a horizontal rail fixed to an inner surface of a door at a tip of a rotating arm whose base end is pivotally mounted in a vehicle corresponding to a front edge of an entrance / exit and horizontally rotates. A slider that is movably coupled is attached, a rotary shaft having a drive mechanism is provided above the horizontal rail in parallel with the horizontal rail, and an upper edge of a rail cover that covers the horizontal rail is provided at the rotary shaft. An opening and closing mechanism for automobile doors that is fixed to the. 2. An auxiliary rail is provided below the horizontal rail in parallel with the horizontal rail, and an upper edge of the auxiliary rail cover having a size for covering the auxiliary rail is hingedly attached to a lower edge of the rail cover to be attached in a hanging shape. An opening / closing mechanism for an automobile door according to claim 1.