JPS63312231A - Method for smoothing the outer surface of a sliding door and sliding door with an outer surface smoothing mechanism - Google Patents

Abstract

PURPOSE:To eliminate a stage between a sliding door and a door pocket for smoothing the outer surface by providing an outer surface sliding door in an opening formed in the sliding door so that the outer surface sliding door comes in and out of the opening. CONSTITUTION:An opening 2 is provided in a position corresponding to a door way 0 of a sliding door body 1. An outer surface sliding door 3 entering and exiting the opening 2 is loosely fitted in the sliding door body 1. Between the outer wall 3b of outer surface sliding door 3 and the sliding door body 1 is inserted a highly elastic air bag 4. And an intake-exhaust pipe 6 is attached to the upper portion of sliding door body 1 to be supplied with compressed air from a compressed air source. When the sliding door body 1 is closed and the air bag 4 is expanded by the compressed air, the outer surface sliding door 3 is protruded so that the outer wall 3b is flush with a door pocket A. Thus, a stage between the sliding door and a car body can be eliminated to smooth the outer surface and reduce air resistance is travelling.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an entrance/exit sliding door for a high-speed vehicle, etc., which particularly requires a smooth outer surface in order to reduce air resistance on the outer surface of the structure.

[Conventional technology]

As shown in Figure 10, the structure of a conventional entrance/exit door is such that the sliding door reciprocates along the inside of the door pocket A, moves to the left in the figure, and hits a stopper S made of cushioning material to close the entrance/exit door. 0 is closed.

Therefore, it is unavoidable that the closed sliding door forms a level difference of the dimension l with respect to the door pocket A, which causes large air resistance when a moving object or the like travels at high speed.

Particularly in high-speed vehicles, it is an important issue to reduce air resistance to reduce running resistance and effectively use power, and this becomes increasingly important as running speeds increase.

[Problems to be solved by the invention] In order to reduce the air resistance on the surface of the structure, it is very effective to smooth the outer surface of the structure, but in the conventional sliding door structure, the door pocket of the structure Since it is not possible to eliminate the difference in level between the door and the sliding door, it is impossible to minimize air resistance by smoothing the outer surface.

In addition, plug doors have traditionally been available as a door structure that can smooth the outer surface, but plug doors require two-step movement of the entire door: movement in the closing direction and movement in a direction perpendicular to this.
Another drawback is that the structure for regulating the movement of the door is complicated.

Moreover, renovating the current sliding door structure with a step between the door pocket and the sliding door to a plug door method is
Renovation is difficult because it requires major modifications to the structure.

The present invention has been made to solve such problems.

[Means for solving problems]

In the present invention, after the sliding door is closed, an external sliding door having substantially the same dimensions and the same shape as the entrance is made to protrude from the sliding door, and the surface of the external sliding door and the surface of the vehicle body are flush with each other, so that the sliding door is attached to the external surface of the structure. a sliding door body having an opening at a position opposite to the doorway when the sliding door for opening and closing the doorway is closed; and an outer surface formed in substantially the same size and shape as the doorway. an external sliding door that is loosely fitted into the opening of the sliding door body so as to be retractable; and an external sliding door that is attached to the sliding door body and causes the external sliding door to protrude until it is flush with the surface of the structure or to be recessed into the sliding door main body. It consists of a moving device and a sliding door with an outer surface smoothing mechanism.

[For production]

A sliding door is composed of a sliding door main body, an external sliding door, and a sliding door moving device attached to the sliding door main body to make the external sliding door appear and retract from the sliding door main body.When the sliding door is closed, when the external sliding door is protruded by the sliding door moving device, the external sliding door is flush with the surface of the structure, and air resistance when a vehicle or the like travels is minimized.

Further, when the sliding door is opened, the outer sliding door is recessed into the sliding door body by the sliding door moving device, so that the sliding door body and the outer sliding door do not interfere with the door pocket or the like even when the sliding door is opened or closed.

〔Example〕

Embodiments of the present invention will be described with reference to the drawings.

1 to 3 are cross-sectional views of a sliding door and a part of the structure showing a first embodiment of the present invention, in which the sliding door main body 1 reciprocates along the inside of the door pocket A, similar to a conventional sliding door. It is movable to the left in the figure and closes the doorway 0 by hitting the stopper S made of cushioning material, but the sliding door body 1 has a doorway 0 at a position corresponding to the doorway 0 when it is closed. This differs from the conventional example in that openings 2 having substantially the same size and shape are provided.

An outer sliding door 3 that can move in and out of the opening 2 is loosely fitted into the sliding door main body 1.

The outer sliding door 3 has a peripheral wall 3 that has a slight gap with respect to the opening 2.
an outer wall 3b and a peripheral wall 3 connected to one edge of the peripheral wall 3a;
and a collar portion 3C provided on the other side of a.

A highly elastic airbag 4 is inserted between the outer wall 3b and the sliding door body 1, and both sides of the airbag 4 are connected to the outer wall 3b.
and is fixed to the inner surface of the sliding door body 1.

As shown in FIG. 3, an air supply/exhaust vibro is installed at the top of the sliding door body 1, one end of which communicates with the airbag 4, and the other end communicates with a switching valve (not shown). Compressed air is supplied to the air supply and exhaust vibro from a compressed air source used for brakes and the like via a switching valve.

The airbag 4 and the air supply/exhaust vibro constitute an external sliding door moving device.

A door roller 7 attached to the upper end of the sliding door main body 1 is suspended from a sliding door upper rail 8, and is opened and closed by a sliding door opening/closing cylinder 9.

Reference numeral 10 is a glass window provided in the sliding door, and the airbag 4 can have a cavity in the center so as not to block the view of the glass window 10.

A method for smoothing the outer surface of the sliding door of a structure using the sliding door configured as described above will be explained.

When the sliding door is open, intake air is blocked by the switching valve, and the air in the airbag 4 is communicated with the atmosphere.

Therefore, the airbag 4 is deflated and the outer sliding door 3 is sunk into the sliding door body 1 (see FIG. 1).

In this state, when the sliding door opening/closing cylinder 9 is activated and the sliding door body 1 hits the stopper S, the entrance 0 is closed.

Next, when the switching valve is connected to a compressed air source and the air bag 4 is inflated, the outer sliding door 3 is opened until the flange 3C comes into contact with the periphery of the opening 2 of the sliding door body 1, as shown in FIG. The outer wall 3b protrudes and becomes flush with the surface of the vehicle body. Outer wall 3b
Since it has substantially the same size and shape as the entrance 0, the entrance 0 is almost completely covered by the outer wall 3b, and the outer surface of the sliding door of the vehicle is smoothed.

4 to 6 show a second embodiment of the present invention, in which the structure of the sliding door body 1 and the outer sliding door 3 is the same as that of the first embodiment, but the outer sliding door moving device is different.

That is, the cams 13 are fixed at multiple locations on two shafts 12 that are rotatably supported by bearings 11 fixed to the sliding door body 1.

The two shafts are rotated by a motor 15 via a rotation transmission mechanism 14.

Reference numeral 16 denotes a spring stretched between the sliding door body 1 and the outer sliding door 3, which urges the outer sliding door 3 toward the sliding door main body 1 side.

The operation of the outer surface moving device of the second embodiment configured as described above will be described below.

Due to a certain amount of rotation of the motor 15, the rotation transmission mechanism 14
The shaft 12 rotates through the cam 12, and the cam 13, which had been lying down as shown in FIG. 4, stands up as shown in FIG. On the other hand, it becomes the same surface.

When opening the sliding door, by rotating the cam 12 in the opposite direction, the outer sliding door 3 is retracted into the sliding door body 1 by the tension of the spring 16, so that the sliding door can be opened without interfering with the door pocket A.

Other aspects are the same as in the first embodiment.

7 to 9 show a third embodiment of the external surface moving device, in which a link support plate 17 is provided on the inner wall surface of the sliding door body 1 so as to be slidable in the left and right directions in the drawings.

As shown in FIG. 9, on the upper part of the link support plate 17, a connecting metal fitting 18 that protrudes outward from the sliding door body 1 is erected, and when the sliding door body 1 moves in the closing direction, the connecting metal fitting 18 closes the sliding door. A support plate moving device is provided in which the link support plate 17 slides on the inner wall surface of the sliding door body l by hitting a stopper 19 protruding from the lower surface of the rail 8. It is also possible to have a structure in which the plate 17 is slidable.

Reference numeral 21 is an air supply/exhaust pipe connected from a compressed air source to the air cylinder 20 via a switching valve.

One end of the link 22 is pivotally attached to the link support plate 17, and the other end of the link 22 is pivotally attached to the inner wall surface of the outer sliding door 3.

Therefore, as shown in FIG. 7, when the link support plate 17 slides to the left on the inner surface of the sliding door body 1, the link 22 collapses and the outer sliding door 3 sinks into the sliding door body 1, and the link support plate 17 slides to the left on the inner surface of the sliding door body 1.
When 7 returns to the state shown in FIG. 8, the outer sliding door 3 protrudes and forms the same plane as the surface of the structure.

A spring 23 is stretched between the sliding door body 1 and the outer sliding door 3, and the outer sliding door 3 is biased in the retracting direction.

The operation of the external surface moving device of the third embodiment configured as described above will be described below.

When the sliding door body 1 is opened, the outer sliding door 3 is recessed into the sliding door body 1 due to the tensile force of the spring 23, and the link support plate 1
7 is in a state of sliding to the left on the inner wall surface of the sliding door body 1 (see FIG. 7).

When the sliding door opening/closing cylinder 9 operates and the sliding door main body l moves to the left, the connecting fitting 18 touches the stopper 19 just before closing.
At this time, the link support plate 17 moves to the right with respect to the sliding door body 1, the link 22 stands up, and the outer sliding door 3 protrudes against the spring 23 and becomes flush with the surface of the structure.

Instead of the connecting fitting 18 and the stopper 19, the air cylinder 20 may be used to directly move the link support plate 17 to the right.

As described above, the external surface moving device may have various mechanisms as long as it projects the external sliding door 3 so as to be flush with the surface of the structure and is recessed into the sliding door body 1.

〔effect〕

The present invention eliminates the level difference between the sliding door and the surface of the structure by simply providing an opening in a sliding door of the same type as a conventional sliding door, and installing an external sliding door that can move in and out of the opening and an external movement device that allows the external sliding door to move in and out. Since the outer surface can be smoothed, air resistance during running of high-speed vehicles etc. can be reduced, and the advantage is that motive power can be made more efficient. Further, the generation of noise such as wind noise can be suppressed. In addition, there is also the advantage that the appearance of the structure is improved.

Further, the sliding door of a conventional structure can be replaced with the sliding door of the present invention without major modification, and the outer surface of the structure can be easily made smooth. In addition to the high-speed vehicles mentioned in the examples, the present invention can be applied to a wide range of structures such as automobiles, ships, aircraft, and buildings.

[Brief explanation of drawings]

1 to 9 show embodiments of the present invention, FIG. 1 is a cross-sectional view of the sliding door in the open state in the first embodiment, FIG. 2 is a cross-sectional view of the same sliding door in the closed state, Figure 3 is an inside front view of the sliding door shown above, Figure 4 is a cross-sectional view of the sliding door in the second embodiment in an open state, Figure 5 is a cross-sectional view of the sliding door in its closed state, and Figure 6 is a cross-sectional view of the sliding door in its closed state. Figure 7 is a cross-sectional view of the sliding door in the open state in the third embodiment; Figure 8 is a cross-sectional view of the sliding door in the closed state; Figure 9 is a cross-sectional view of the sliding door in the closed state. The inside front view and FIG. 1O are cross-sectional views of a conventional sliding door. A...Door pocket, 0...Entrance/exit, D...Sliding door, S...
...stopper, 1...sliding door body, 2...opening,
3... External sliding door, 3a... Peripheral wall, 3b... External wall,
3C... Flange, 4... Airbag, 6... Supply/exhaust pipe, 7... Door roller, 8... Sliding door top rail, 9...
・Cylinder for opening and closing sliding door, 10...Glass window, 11・
...Bearing, 12...Shaft, 13...Cam, 14...
Rotation transmission mechanism, 15...Motor, 16...Spring, 1
7... Link support plate, 18... Connecting metal fittings, 19...
・Stopper, 20...Air cylinder, 21...
Exhaust vibe, 22...link, 23...spring. Patent applicant: Kawasaki Heavy Industries, Ltd.

Claims (5)

[Claims] (1) After closing the entrance with a sliding door, an external sliding door having substantially the same size and shape as the entrance is made to protrude from the sliding door, so that the surface of the external sliding door and the surface of the structure are flush with each other. How to smooth the outer surface of a sliding door. (2) A sliding door body having an opening at a position opposite to the entrance of the sliding door when the sliding door that opens and closes the entrance is closed, and an outer surface formed in approximately the same size and shape as the entrance. an external sliding door that is loosely fitted into the opening of the sliding door; and an external sliding door moving device that is attached to the sliding door body and causes the external sliding door to protrude or retract into the sliding door body until it is flush with the surface of the structure. A sliding door with an outer surface smoothing mechanism characterized by comprising: (3) An airbag disposed between the external sliding door and the sliding door body, which is inflated by compressed air to cause the external sliding door to protrude, and a spring, etc. that biases the external sliding door in the direction of recessing into the sliding door main body. The sliding door with an outer surface smoothing mechanism according to claim 2, which constitutes the outer surface moving device. (4) A patent characterized in that an outer surface moving device is constituted by a spring that biases the outer sliding door in a direction to sink into the sliding door body, and a cam that causes the outer sliding door to protrude against the spring by a cam lift. A sliding door with an outer surface smoothing mechanism according to claim 2. (5) a link support plate slidably provided on the inner wall surface of the sliding door body; a link having one end pivotally attached to the link support plate and the other end pivotably attached to the inner wall surface of the outer sliding door; An outer surface moving device is constituted by a support plate moving device that slides the link support plate in the left and right direction, and when the link support plate slides,
The sliding door with an outer surface smoothing mechanism according to claim 2, wherein the link stands up and causes the outer sliding door to protrude.