JPH0451632B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an opening/closing device for a folding door for a vehicle, in which opening and closing of the folding door for a vehicle is mechanically and remotely controlled by swinging an operating handle provided on the side of the driver's seat. It is something.

Conventionally, it has been seen that the folding doors of microbuses and the like are remotely operated by an opening/closing drive device using a motor or a power cylinder as the drive source, but this increases the cost and for some reason the electrical system that controls the opening/closing drive device is difficult to operate. Alternatively, if a failure occurs in the piping system, it requires time and effort to locate and repair the failure location.

In view of these drawbacks, the present invention has a rotary shaft rotatably supported on the floor of the vehicle below the front seat, an operating handle fixed to one end of the rotary shaft, and a lever provided to the other end of the rotary shaft. An opening/closing driving force transmitting member 1 that converts the rotational motion of the rotary shaft into reciprocating linear motion is connected to the opening/closing driving force transmitting member 1, while a folding door consisting of two door plates rotatably connected is pivotally supported at the entrance. A slide bracket is supported slidably in the horizontal direction at the bottom of the folding door, the other end of the opening/closing driving force transmission member 1 is pivotally supported on the slide bracket via a link device, and a slide bracket is supported at the upper end of the folding door. The bracket is attached to the bracket, and the bracket supports a stopper which is provided with a spring that presses in the projecting direction so as to be freely removable and removable.
In addition, a locking fitting into which a stopper is fitted is attached to the frame located above the folding door, and the stopper forms an inclined surface on the front and connects an operating lever, and the operating lever is connected via a wire rope. An embodiment of the present invention will be described below based on the drawings, with the aim of solving the above-mentioned drawbacks by providing an opening/closing device for a folding door for a vehicle which is connected to a slide bracket. This is a folding door, which is installed on the entrance 2 located at the rear left side of a microbus, etc., and has two door plates 3 that are rotatably connected.
3' is configured to be folded into two by rotating about the pivot 4 as a fulcrum.

A locking mechanism 5 is attached to the top of the door plate 3 to prevent the door from opening when the door is closed, and the locking mechanism 5 supports a stopper 7 in a manner that allows it to move in and out on a bracket 6 attached to the upper end of the door plate 3. A spring 8 is inserted to press the door in the projecting direction, a latch 10 into which the stopper 7 is fitted is attached to the frame 9 located above the door plate 3, and an operating rod 11 is connected to the stopper 7. The lock state by the stopper 7 is released by lowering the operating rod 11.

The stopper 7 has an inclined surface 7a formed on its front surface as shown in FIG. When pressed downward, the stopper 7 is automatically fitted into the latch 10 and locked.

Reference numeral 12 denotes an opening/closing device for the folding door 1, and mounting brackets 14 and 14' are attached to the side of the driver's seat and the end of the passenger seat on the vehicle floor 13 below the front seat. is a rotating shaft 16 (ordinary bar material) via bearings 15, 15' made of oil-impregnated metal.
An operating handle 18 is fixed to the end of the rotating shaft 16 on the driver's seat side and is raised up so as to be located to the left of the shift lever 17. The lower end of the lever 19 is attached to the other end, and the vehicle floor 1 is attached to the upper end of the lever 19.
One end of a push-pull wire, which is an opening/closing drive force transmitting member 21, is connected between the mounting bracket 14' and a bracket 20 installed in front of the elevator opening 2 along the upper end of the opening/closing opening 2.

22 is a link device installed on the vehicle floor 13 in front of the entrance 2, and the first link 2 is rotatably supported on the board 23 with the intermediate point Q as a fulcrum.
The other end of the opening/closing driving force transmitting member 21 is connected to one end of the first link 24, and one end of the second link 25 is pivotally connected to the other end of the first link 24 using the pivot point A. The other end is rotatably supported on the board 23 with one end P as a fulcrum.
The third link 26 is pivotally connected to the middle part of the link 26 with B as the pivot point, and one end of the fourth link 27 is pivotally attached to the other end of the third link 26 with C as the pivot point.
The other end of the fourth link 27 is pivotally connected to a lock release device 28 attached to the lower part of the door plate 3 using D as a pivot point.

In the link device 22, the first link 24
and the second link 25 is arranged so that its pivot point A is slightly eccentric to the counterclockwise rotation direction of the first link 24 from the line connecting the fulcrum O and the pivot point B when the door is closed. Similarly, the third link 26 and the fourth link 27 have their pivot points C located slightly eccentrically toward the clockwise rotation direction of the third link 26 from the line connecting the fulcrum P and the pivot point D. Arrange them in the following manner,
When the door is closed, the first link 24 and the second link 2
5 and between the third link 26 and the fourth link 27, a toggle mechanism is constructed.

Further, a pin 2 is wound around the fulcrum P on the eighth link 26 and has one end protruding from the base plate 23.
9, and an elastic body 30 whose other end is hooked to the third link 26 is attached so that the third link 26 is pressed in the door closing direction by the elastic body 30.

Further, the lock release device 28 is provided with a fixing metal fitting 31 at the bottom of the door plate 3 facing the operating plane of the fourth link 27.
The support plate 3 is attached to the fixing metal fitting 31 through the support plate 3.
A slide bracket 34 is mounted so as to be slidable in the horizontal direction along guides 33, 33' interposed between 2 and 32', and the slide bracket 34 is formed as a pivot point D with the fourth link 27. Also, one end of a wire rope 35 is hooked to the slide bracket 34, and the other end of the wire rope 32 is connected to the operating rod 11 of the lock mechanism 5 via a stopper 36.
Further, springs 37 and 37' are applied to the slide bracket 34 to press the wire rope 35 in the direction of pushing it out.

Next, the operation of the folding door opening/closing device for a vehicle according to the present invention will be explained. First, when the operating handle 18 is swung toward you from the door closed state shown in FIG. 16 is transmitted to the passenger seat side end, and further, this rotational motion pushes out the opening/closing driving force transmission member 21 via the lever lever 19, is converted into a linear motion, and is transmitted to the rear link device 22. Ru.

In the link device 22, the first link 24 rotates counterclockwise around the fulcrum O due to the pressure of the opening/closing driving force transmission member 21, and further the second link 25 rotates counterclockwise around the fulcrum O.
The third link 26 rotates clockwise about the fulcrum P, and accordingly, the fourth link 27 pulls the door plate 3 in the opening direction via the lock release device 28.

Note that the door plates 3 and 3' are locked by the locking mechanism 5, but when the tensile force of the fourth link 27 is applied, the slide bracket 34 of the lock release device 28 is first pulled against the spring 37 and slides. Accordingly, the wire rope 35 is pulled, and the stopper 7 is moved downward via the operating rod 11, so that the lock is released, and after that, the fourth
The tensile action of the link 27 acts on the rotation of the door plate 3 in the opening direction, and the door plates 3, 3' are folded and opened.

Further, the elastic body 30 that is biased by the third link 26 and acts in the door closing direction increases its biasing force as the third link 26 rotates with respect to the opening of the door plates 3, 3', and when the door moves to close. A force is accumulated in the door closing direction.

The biasing force in the door closing direction due to the elastic body 30 is
When the door plates 3, 3' are folded and opened, the waterproof rubber plate 38 attached to the lower end of the door plates 3, 3' will fall on the footboard 39 of the entrance/exit 2 when the door is opened, as shown in FIG. The rubber plate 38 slides and curves to assist in the force required when the rubber plate 38 curves in the opposite direction and folds back as shown in FIG. be.

Next, in order to close the door plates 3, 3', the operating handle 18 is tilted forward, so that the rotating shaft 16, the opening/closing driving force transmission member 21, and the link device 22 are actuated in the opposite direction from when the door is opened. This allows the door plates 3, 3' to be interlocked in closing.

Note that when the door is closed, the first link device 22
The link 24 and the second link 25, and the third link 26 and the fourth link 27 are sequentially rotated so that they are arranged on a substantially straight line to form a toggle mechanism, so that the door plates 3 and 3' can be closed just before closing. This makes it possible to smoothly perform an operation in which the pressure becomes strong and the valve is completely closed.

In short, since the present invention is configured as described above, the remote control for opening and closing of the folding door 1 can be performed using a motor.
It can be easily operated by simply swinging the operating handle 18 provided on the side of the driver's seat without using a drive device such as a power cylinder, and all transmission paths are reliably operated in conjunction with mechanical means. Since the lock mechanism 5 is constructed as described above, there is no fear of failure, the operation is reliable, and the mechanism is very simple, so it can be manufactured at low cost.
When opening the folding door 1, simply swing the operating handle 18 toward you, and the rotating shaft 16 and lever lever 1 will open.
9, opening/closing driving force transmission member 21, link device 22,
Due to the interlocking movement of the slide bracket 34, operating rod 11, etc., the stopper 7 is lowered and the lock is released, and the folding door 1 can then be folded and opened, and when the folding door 1 is closed, the operation is opposite to that when opening it. That is, it can be closed simply by swinging the operating handle 18, and the inclined surface 7a of the stopper 7 can facilitate the closing.

Furthermore, if a rod is used in place of the bush pull wire which is the opening/closing driving force transmission member 21, it can be made lighter and less expensive, and in the opening/closing device according to the present invention, all the components can be mounted on the vehicle floor. Since there are no perforations in the car floor, there is no loss of sealing performance, and there is no risk of dirt, dust, etc. entering the car interior, increasing comfort.Furthermore, the opening/closing mechanism installed on the car floor does not impair the sealing properties of the car. Since the available space is utilized to the maximum, it does not pose any obstacle to people getting on and off, and its practical effects are tremendous.

[Brief explanation of the drawing]

The figure shows one embodiment of the present invention.
The figure is a plan view of the folding door opening/closing device for a vehicle according to the present invention, FIG. 2 is a front view of the same as above, FIG. 3 is a cross-sectional view taken along line XX of FIG. 1, and FIG. , 5th
The figure is a plan view of the link device, Figure 6 is a diagram showing the locking mechanism and lock release device, and Figure 7 is a diagram showing the Z of Figure 6.
-Z sectional view, FIGS. 8 and 9 are sectional views of the door plate. 1...Folding door, 2...Elevating entrance, 3, 3'...Door plate,
6... Bracket, 7... Stopper, 7a... Inclined surface, 8... Spring, 9... Frame, 10... Latching bracket, 11... Operating rod, 13... Vehicle floor, 16... Rotating shaft,
18... Operation handle, 19... Lever lever, 21... Opening/closing driving force transmission member, 22... Link device, 34... Slide bracket, 35... Wire rope.

Claims (1)

[Claims] 1. A rotary shaft is rotatably supported on the floor of the lower front seat of a vehicle, an operating handle is fixed to one end of the rotary shaft, and a lever is provided at the other end to control the rotational movement of the rotary shaft. An opening/closing drive force transmission member that converts the movement into reciprocating linear motion is connected, while a folding door consisting of two rotatably connected door plates is pivotally supported at the entrance, and the door slides at the bottom of the folding door. The bracket is slidably supported in the horizontal direction, the other end of the opening/closing driving force transmission member is pivotally supported on the slide bracket via a link device, and the bracket is attached to the upper end of the folding door. A stopper with a spring that presses in the projecting direction is supported so that it can move in and out, and the frame located above the folding door is equipped with a latching fitting into which the stopper is inserted, and the stopper has an inclined surface on the front. 1. An opening/closing device for a folding door for a vehicle, characterized in that the operating lever is connected to a slide bracket via a wire rope.