JPH0436388Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to an opening/closing device for a folding door for a Nishiki vehicle, in which the opening/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, such folding doors for vehicles such as microbuses have been remotely operated by an opening/closing drive device using a motor or power cylinder as the drive source, but this increases the cost and for some reason, the electric power to control the opening/closing drive device is not available. When a failure occurs in the system or piping system, it has disadvantages such as requiring time and effort to discover the failure point and repair it.

In addition, there are devices that mechanically open and close the folding door for vehicles using a link mechanism, such as in Japanese Utility Model Application Publication No. 1315/1982, but in such devices, the folding door can be opened and closed by operating the handle 1. It is only possible to open and close the door 5 through a link device consisting of a plate 9 and a lever 11, and in order to release the mechanism that locks the folding door, a separate lock release mechanism is provided and each must be operated individually. It has some drawbacks.

In addition, the folding door that is pivoted to the entrance of this type of microbus has a rubber gasket attached to the lower edge to prevent rainwater from entering from the outside, and the tread of the entrance is slightly bent toward the inside. It slopes upward.

When the door is opened, the rubber gasket gradually curves along the tread of the entrance and slides relatively smoothly as shown in Figure 8, but when the door is closed, the rubber plate slides as shown in Figure 9. Since the door must first be folded back to the opposite side, it is subject to a large amount of resistance, and when a folding door is manually opened and closed by remote control, there are drawbacks such as the resistance of the rubber plate making it impossible to close the door smoothly. Was.

In view of these drawbacks, the present invention is an opening/closing device that opens and closes a folding door that is pivotally supported to an entrance via a link device by swinging an operating handle. The slide bracket is supported to be slidable in the horizontal direction, and the slide bracket is connected to the link device, and a stopper is biased in the insertion direction at the upper end of the folding door so as to be able to move in and out of the latch of the frame. The stopper and the slide bracket are connected by a wire rope, and an elastic body for pressing the folding door in the closing direction is hooked to at least one link constituting the link device. An embodiment of the present invention will be described below based on the drawings. 1 is a folding door for a vehicle, such as a microbus, etc. Two door plates 3 are installed at the entrance 2 located at the rear left side of the screen and 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 upper part 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 that presses the door plate 7 in the projecting direction is intervened, 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 the stopper 7 is 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. A torsion bar 16 is rotatably supported via bearings 15 and 15' made of oil-impregnated metal, and the torsion bar 16 is arranged upright at the driver's seat side end so as to be located to the left of the shift lever 17. Operation handle 18
On the other hand, the lower end of a lever rod 19 is attached to the other end of the torsion bar 16, and a mounting bracket 14' is attached to the upper end of the lever rod 19 along the edge above the vehicle floor 13.
One end of a push-pull wire 21 is connected between the push-pull wire 21 and a bracket 20 installed in front of the elevator entrance 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 base plate 23 with the intermediate point O as a fulcrum.
The other end of the push-pull wire 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 of the third link 26 is rotatably supported on the board 23 with one end P as a fulcrum, and is pivoted at the middle part of the third link 26 with B as a pivot point, and the other end of the third link 26 is One end of the fourth link 27 is pivotally connected using D as a pivot point, and the other end of the fourth link 27 is pivoted 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 third 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.

Furthermore, when the door is closed, the elastic body 30 exerts a slight elastic force in the door closing direction, and when the door is opened, it is twisted in the opposite direction as the link rotates, thereby gradually increasing the elastic force in the door closing direction. You may also hang it on another link.

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 35 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 vehicle folding door opening/closing device according to the present invention will be explained. First, when the operating handle 18 is swung toward the user from the closed state of the door shown in FIG. This rotational movement is transmitted to the passenger seat side end through the lever lever 19, and this rotational movement pushes out the push-pull wire 21 through the lever lever 19, is converted into a linear movement, and is transmitted to the link device 22 at the rear.

In the link device 22, the first link 24 rotates counterclockwise around the fulcrum O by the push of the push-pull wire 21, and the second link 24 rotates counterclockwise around the fulcrum O.
5, 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, so that the door plates 3, 3' are folded and opened.

Further, the elastic body 30, which 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 shifts to closing the door. The force in the direction of closing the door is accumulated.

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 torsion bar 16 and push-pull wire 2 are moved forward by lowering the operation handle 18.
1. The link devices 22 operate in the opposite direction to when the door is opened to interlock the door plates 3 and 3' in closing.

In short, since the present invention is constructed as described above, the opening and closing of the folding door 1 can be easily remotely controlled by simply swinging the operating handle 18 provided on the driver's seat side without using a drive device such as a motor. In addition to being able to operate the lock, it is also possible to release the lock at the same time by moving the stopper 7 downward, and when the folding door 1 transitions from the open state to the closed state, the rubber on the lower edge of the door plates 3, 3' The resistance generated by the folding of the plate 38 can be canceled out by the elastic body 30 that acts elastically in the door closing direction, making the door closing operation smooth, and when the door is completely closed, the elastic body 30 prevents the door from being generated during travel. Plate 3, 3'
Furthermore, since all of the transmission paths are reliably linked and operated by mechanical means, there is no risk of failure, operation is reliable, and the mechanism is very simple, so costs are low. Its practical effects, such as its ability to be manufactured, are enormous.

[Brief explanation of the drawing]

The figure shows one embodiment of the present invention.
The figure is a plan view of the vehicle folding door opening/closing device according to the present invention, Figure 2 is a front view of the same as above, Figure 3 is a sectional view taken along line XX in Figure 1, and Figure 4 is a sectional view taken along line Y-Y of same as above. , 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... Entrance/exit, 7... Stopper, 9... Frame, 10... Latch fitting, 18...
...Operation handle, 22...Link device, 30...
Elastic body, 34... Slide bracket, 35...
Wire rope, 38...Rubber plate.

Claims (1)

[Scope of utility model registration request] In an opening/closing device that opens and closes a folding door that is pivotally supported at an entrance via a link device by swinging an operating handle, a slide bracket is attached to the bottom of the folding door with a rubber plate attached to the lower end so that it can slide freely in the horizontal direction. The slide bracket is supported and connected to the link device, and a stopper is disposed at the upper end of the folding door so as to be able to move in and out of the latching fitting of the frame body and is biased in the insertion direction. and the slide bracket are connected by a wire rope, and an elastic body for pressing the folding door in the closing direction is hooked to at least one link constituting the link device. Door opening/closing device.