JP7411370B2 - Sliding door opening/closing structure and amphibious vehicle - Google Patents

Description

The present invention relates to a sliding door opening/closing structure and an amphibious vehicle equipped with the same.

BACKGROUND ART Research and development of amphibious vehicles that can travel on the ground and that are equipped with main wings and can fly in the air have been conducted in various ways (for example, see Patent Documents 1 to 3).
These air and land vehicles are configured so that their main wings are folded downward or the like when traveling on the ground.

Another example of a so-called ultra-light plane is one in which the main wing can be rotated between a state in which it is folded along the fuselage and a state in which it is opened to the sides of the fuselage. It has been proposed (see Patent Document 4).

Japanese Patent Application Publication No. 2011-225058 JP2013-244898A Japanese Patent Application Publication No. 2017-185866 Publication No. 196899/1989 Japanese Patent Application Publication No. 2005-178770 Japanese Patent Application Publication No. 2010-36654

By the way, although it is not described in detail in Patent Documents 1 to 4 mentioned above, for example, when the driver opens the door to exit the amphibious vehicle after taxiing on the ground with the main wings folded, the door may be of a so-called hinge type. If this happens, the door could hit the folded wing just outside, making it impossible to open the door or damaging the door or wing.
Therefore, it is conceivable to configure the door as a sliding door so that it can be opened and closed by sliding along the body of the amphibious vehicle.

In this case, for example, as described in Patent Documents 5 and 6, the aircraft is configured to slide the sliding door by providing rails on the side of the fuselage, respectively, at parts corresponding to the upper and lower ends of the sliding door. There are many things.
However, the sides of the fuselage of an amphibious vehicle often do not have a simple cylindrical shape like an aircraft.

Therefore, when installing a sliding door on the fuselage of an amphibious vehicle, as shown above, rails are provided on the sides of the fuselage at the parts corresponding to the upper and lower ends of the sliding door, and the sliding door is opened and closed by sliding. It is often difficult to do so.
As described above, there is a need for a sliding door opening/closing structure that allows the sliding door to reliably slide and open/close smoothly even when rails cannot be provided at the upper and lower ends of the sliding door.

The present invention has been made in view of the above points, and provides a sliding door opening/closing structure that allows the sliding door to reliably slide to open and close even if rails cannot be provided at the upper and lower ends of the sliding door. The purpose is to provide air and land vehicles using the same.

In order to solve the above problem, the invention according to claim 1,
In the sliding door opening/closing structure for opening and closing the sliding door by sliding it relative to the main body,
There is no rail in the part of the main body corresponding to the lower end of the sliding door, and a rail is arranged in the part of the main body corresponding to the upper end of the sliding door,
A guide roller fixed to the inside of the upper end of the sliding door is slidably engaged with the rail,
When the sliding door is slid to open and close, the guide roller is engaged with the rail and moves along the rail, thereby opening and closing the sliding door ,
The said rail is
arranged along the sliding direction of the sliding door,
A portion corresponding to the front side of the sliding door is curved in a direction that gradually moves away from the sliding door toward the front side,
When the sliding door is slid to open the sliding door, an end portion of the sliding door on the sliding direction side moves in the sliding direction and moves by a predetermined amount in a direction perpendicular to the sliding direction, and then, An end of the sliding door opposite to the sliding direction moves in the sliding direction by a predetermined amount in a direction perpendicular to the sliding direction, and then slides in the sliding direction;
A door side rail extending in the sliding direction of the sliding door is provided on the inner surface of the sliding door,
A regulating member having a roller at its tip is disposed in a portion of the main body that corresponds to the rear side of the door side rail when the sliding door is closed;
When the sliding door is slid to open or close, the roller moves along the door side rail while being slidably engaged with the door side rail,
The regulating member is configured such that a roller holding portion that holds the roller is swingable in the sliding direction of the sliding door, and swings in accordance with the movement of the sliding door when the sliding door opens and closes. It is characterized by being configured as follows .

The invention according to claim 2 is the sliding door opening/closing structure according to claim 1,
A plurality of said rails are arranged,
The same number of guide rollers as the number of rails are fixed to the inside of the upper end of the sliding door,
Each of the guide rollers is slidably engaged with each of the rails.

The invention according to claim 3 is
An amphibious vehicle that can run on the ground and can also fly in the air with main wings,
Equipped with the sliding door opening/closing structure according to claim 1 or claim 2 ,
the main body is a fuselage of an amphibious vehicle;
The sliding door is configured to be opened and closed by sliding along the body.

According to the present invention, in a sliding door opening/closing structure or an amphibious vehicle using the same, even if rails cannot be provided at the upper and lower ends of the sliding door, the sliding door can be reliably slid to open and close. Become.

1 is a diagram showing a configuration of an amphibious vehicle according to an embodiment when traveling on land; FIG. 1 is a diagram illustrating a configuration of an amphibious vehicle according to an embodiment during takeoff and landing; FIG. 1 is a diagram illustrating a configuration of an amphibious vehicle according to an embodiment during cruising; FIG. FIG. 3 is a diagram illustrating that the sliding door can be opened and closed by sliding back and forth along the side of the fuselage. FIG. 3 is a plan view showing a state in which the main wings of the amphibious vehicle are folded along the fuselage. FIG. 1 is a schematic view of the sliding door opening/closing structure according to the present embodiment, viewed from the inside. It is a figure showing the engagement state of a guide roller and a rail. FIG. 3 is an image diagram of a rail, a guide roller, a guide roller holding section, and a sliding door viewed from above in order to explain the relationship between them. (A) is a view of the sliding door opening/closing structure as seen from the outside of the amphibious vehicle 1, and (B) is a view as seen from the rear. It is an enlarged view showing the rocking state of the regulating member and the engagement state of the regulating member and the door side rail when the sliding door is opened and closed.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a sliding door opening/closing structure and an amphibious vehicle according to the present invention will be described below with reference to the drawings.
In addition, below, each direction of an up-down, front-back, and left-right will be demonstrated according to each direction of an amphibious vehicle. Moreover, although the case where the sliding door opening/closing structure is applied to an amphibious vehicle will be described below, the sliding door opening/closing structure itself according to the present invention is not necessarily limited to the case where it is applied to an amphibious vehicle.

[Overall configuration of air and land vehicle]
Hereinafter, first, the overall configuration of the air and land vehicle according to the present embodiment will be described.
The air-land vehicle 1 according to this embodiment can run on the ground, and can also fly in the air by being equipped with main wings.
FIG. 1 is a diagram showing the configuration of an amphibious vehicle according to the present embodiment when traveling on the ground, FIG. 2 is a diagram showing the configuration during takeoff and landing during flight, and FIG. 3 is a diagram showing the configuration during takeoff and landing during flight. FIG. 3 is a diagram showing the configuration during cruising.
The air-land vehicle 1 mainly includes a fuselage 2, wheels 3, main wings 4, a propeller 5, a horizontal stabilizer 6, a vertical stabilizer 7, and a tail rotor 8.

In this embodiment, the air and land vehicle 1 is configured based on a motorcycle, and the wheels 3 are arranged below the body 2 in two front and rear wheels, but the air and land vehicle 1 has three wheels, four wheels, etc. It may be.
Although not shown, the driver's seat, which is located approximately in the center of the fuselage 2, is equipped with handles and steps similar to the handles and steps of a motorcycle, so that the driver sitting astride the seat can use the handles and steps. By operating the steps, you can perform maneuvers during ground travel and during flight.

Further, although not shown in the drawings, in this embodiment, an engine, a generator, a battery, etc. are built into the fuselage 2, and the vehicle runs on the power of the engine when traveling on the ground.
In addition, sliding doors 21 are provided on both left and right sides of the fuselage 2 of the air-land vehicle 1, and the sliding doors 21 are slid back and forth along the sides of the fuselage 2, as shown in FIG. This allows it to be opened and closed. Note that the opening/closing structure of the sliding door 21 will be explained in detail later.

The main wing 4 is a tilt wing with a propeller 5 attached and a winglet 41 formed at the end, with the propeller 5 facing upward (see Figure 2) and forward (see Figure 3). ) can change the tilt angle of the main wing 4.
In addition, the main wings 4 can be folded along the fuselage 2 via a hinge mechanism 22 provided on the side of the fuselage 2 with the propeller 5 facing upward (see FIG. 1) and the side of the fuselage 2. It can be rotated between the open position (see Figure 2) and the open position.

In this embodiment, when the main wings 4 are folded along the fuselage 2, as shown in FIG. In this space S, the sliding door 21 can be opened and closed by sliding it back and forth along the side surface of the body 2.
Note that this point will also be explained in detail later.

The propeller 5 is attached to the main wing 4 and is driven by an electric motor (not shown) housed in a nacelle 51.
Further, in this embodiment, a tail rotor 8 is provided at the rear of the air-land vehicle 1, that is, in a portion of the fuselage 2 behind the vertical stabilizer 7 between the left and right horizontal stabilizers 6, so that the axis of rotation is directed substantially in the vertical direction. There is. The tail rotor 8 is also driven by a plurality of electric motors (not shown).

In addition, the body 2 and the like accommodates an ECU, various measuring instruments, sensors, etc., which are normally provided in a motorcycle, and various devices related to brakes.
In addition, the fuselage 2 and other parts are equipped with various measuring instruments and sensors installed on the aircraft, as well as controls for the rotation speed of the propeller 5 and the tilt angle of the main wing 4 during flight, as well as the ailerons 42, elevators 61, and rudders 71. A computer and the like for controlling the rotor blades (see FIG. 3) and the like are housed.

[Regarding changes in the form of amphibious vehicles]
Here, changes in the form of the air/land vehicle 1 according to the present embodiment will be explained.
In this embodiment, when the driver gets into the air-land vehicle 1 to travel on the ground, one of the left and right main wings 4 (with the propeller 5 facing upward) is opened from the state shown in FIG. direction, slide open the sliding door 21 on the side of the fuselage 2, and get into the cockpit. Then, the user sits astride the seat, rotates the main wing 4 in the closing direction, and then slides the sliding door 21 to close it.

Further, when exiting the air-land vehicle 1 after ground travel, the driver opens either the left or right sliding door 21 and then rotates the main wing 4 in the direction to open it.
Then, after getting off the seat and closing the sliding door 21, the main wing 4 is rotated and closed.

On the other hand, in this embodiment, when the amphibious vehicle 1 flies, the driver fixes the left and right main wings 4 in an open state with the propeller 5 facing upward as shown in FIG. Open and close the side sliding door 21 to get on and off.
Further, in this embodiment, the air/land vehicle 1 changes its form during flight.
That is, at the time of takeoff, the amphibious vehicle 1 rises vertically with the propeller 5 facing upward and takes off. Also, when landing, the aircraft descends vertically and lands with the propeller 5 facing upward.

Further, after the air/land vehicle 1 takes off with the propeller 5 facing upward as described above, the left and right main wings 4 are tilted forward, respectively, to fly forward.
The tilt angle of the main wing 4 can be changed in stages between the state shown in FIG. 2 and the state shown in FIG. 1's flight speed can be changed.

[About sliding door opening/closing structure]
Next, the sliding door opening/closing structure according to this embodiment will be explained.
The sliding door opening/closing structure is a structure for opening/closing the sliding door 21 by sliding it relative to the main body (body 2 of the amphibious vehicle 1).
First, we will discuss points that should be taken into consideration when determining the configuration of the sliding door opening/closing structure according to this embodiment.

For example, some sliding doors of automobiles are configured such that a rail is provided on the outer side of the automobile, and the sliding door is opened and closed by sliding along the rail.
However, if there are irregularities such as rails on the outer side of the fuselage 2 of the air/land vehicle 1, problems such as aerodynamics may occur. Therefore, in the sliding door opening/closing structure according to the present embodiment, a rail for opening/closing the sliding door 21 is not provided on the outside of the side surface of the main body (the fuselage 2 of the amphibious vehicle 1).

Further, as shown in FIGS. 1 and 5, when opening and closing the sliding door 21 with the main wing 4 folded along the fuselage 2, the sliding door 21 is configured to be opened and closed by sliding in the vertical direction. It is not impossible to think of that.
However, since the fuselage 2 of the air-land vehicle 1 of this embodiment has a structure in which the lower side is narrower than the upper side (that is, the width is narrower), the lower side of the sliding door 21 is generally lower than the upper side. It has a structure that goes deeper inside the fuselage 2.

Therefore, if the sliding door 21 were configured to be opened by sliding upward, the sliding door 21 would have to be moved not only upward but also to the outside. The possibility of collision with the main wing 4 increases.
Therefore, the sliding door opening/closing structure for opening the sliding door 21 upward without colliding with the main wing 4 has to be quite complicated, and such a structure is difficult to adopt.

Furthermore, in this embodiment, as described above, the amphibious vehicle 1 is configured based on a motorcycle, and when traveling on the ground, when the driver puts one or both feet on the ground while waiting at a traffic light, etc., the amphibious vehicle 1 slides. It must be constructed so that you can put your feet on it while the door 21 is closed.
Therefore, in this embodiment, a notch 21A is provided at the lower end of the sliding door 21, as shown in FIG. 4, in order to enable the driver to put his or her feet on the ground. Therefore, in this embodiment, a rail cannot be provided at least on the lower end side of the sliding door 21 (the portion of the body 2 corresponding to the lower end of the sliding door 21).

In consideration of the above points, in the sliding door opening/closing structure according to the present embodiment, the sliding door 21 is configured to slide in the front and rear direction along the side surface of the fuselage 2 of the amphibious vehicle 1, as shown in FIG. It is designed to open and close.
There is no rail in the part of the main body (body 2 of the amphibious vehicle 1) corresponding to the lower end of the sliding door 21, and there is no rail in the part of the main body (body 2 of the amphibious vehicle 1) corresponding to the upper end of the sliding door 21. is now placed.

Hereinafter, the sliding door opening/closing structure according to the present embodiment will be specifically described by exemplifying the case where the sliding door opening/closing structure is applied to the air/land vehicle 1. Note that, as described above, the sliding door opening/closing structure according to the present invention is not necessarily limited to the case where it is applied to the air/land vehicle 1.
FIG. 6 is a schematic diagram of the sliding door opening/closing structure according to the present embodiment as viewed from inside the fuselage of the air/land vehicle. In FIG. 6, the sliding door opening/closing structure 10 is shown looking slightly downward from above. In addition, in FIG. 6, illustration of the air and land vehicle 1 other than the sliding door 21, the rail 11, and the regulating member 12 mentioned later is omitted.

In the sliding door opening/closing structure 10, as described above, the part of the main body (the body 2 of the amphibious vehicle 1) corresponding to the lower end of the sliding door 21 does not have a rail, and the part of the main body (the amphibious vehicle 1) corresponding to the upper end of the sliding door 21 does not have a rail. A rail 11 is arranged in the body 2) of the vehicle 1.
In this embodiment, two rails 11 are arranged, and each rail 11 is arranged substantially parallel to each other so as to extend in the front-rear direction. In addition, although the case where it is comprised in this way is demonstrated below, the number of rails 11 may be one, and 3 or more may be sufficient as it.

A guide roller holding part 21B is fixed to the inside of the upper end of the sliding door 21, and a guide roller 21C is fixed to the upper surface of the guide roller holding part 21B, and each guide roller 21C slides on the corresponding rail 11. freely engaged. Note that in FIG. 6 and the subsequent figures in FIG. 8, which will be described later, the guide roller 21C is depicted as having a flat cylindrical shape in order to make the drawings easier to read, but in reality, the guide roller 21C has a flat cylindrical shape as shown in FIG. It has a complex shape.
That is, as shown in FIG. 7, the rail 11 is formed in the shape of a hanger rail, and the guide roller 21C has two rollers 21Ca that rotate and move within the rail 11, and a roller 21Ca that rotates them. It is composed of a supporting bracket 21Cb and a connecting portion 21Cc that connects the bracket 21Cb and the lower guide roller holding portion 21B.

In this embodiment, with this arrangement, the guide roller 21C is slidably engaged with the rail 11.
When the sliding door 21 is slid to open or close, each guide roller 21C is slidably engaged with the rail 11 and moves along the rail 11, thereby opening and closing the sliding door 21.

With this configuration, when the sliding door 21 is slid to open or close, the guide roller 21C fixed to the inside of the upper end of the sliding door 21 is moved by the rail 11 arranged at the part corresponding to the upper end of the sliding door 21. It moves along the rail 11 with movement in the direction perpendicular to the rail 11 being restricted.
Therefore, even if there is no rail in the portion corresponding to the lower end of the sliding door 21, it is possible to reliably move the sliding door 21 in the front-rear direction along the rail 11.

As described above, according to the sliding door opening/closing structure 10 according to the present embodiment, it is not possible to provide rails at the upper and lower ends of the sliding door 21, and the main body (the body of the amphibious vehicle 1) corresponding to the upper end of the sliding door 21 Even if the rail 11 can only be placed in the portion 2), the sliding door 21 can be reliably slid to open and close.

In addition, in this embodiment, when only one rail 11 is arranged and only one guide roller 21C is provided on the sliding door 21 and slidably engaged with the rail 11, the sliding door 21 is opened and closed by sliding. At this time, the lower side of the sliding door 21 may swing in a direction perpendicular to the rail 11 (that is, in this case, in the left-right direction).
However, as in the present embodiment, a plurality of (for example, two) rails 11 extending in the front-rear direction are arranged approximately parallel to each other, and the same number of guide rollers 21C as the number of rails 11 are provided on the slide door. If the sliding door 21 is slidably engaged, it is possible to prevent or reduce the swinging of the sliding door 21 in the direction perpendicular to the lower rail 11 (left-right direction) when the sliding door 21 is slid to open and close. It becomes possible to do so.

By the way, when sliding the sliding door 21 to open it, the sliding door 21 is actually pulled outward a little (a predetermined amount) and then slid in the sliding direction to open it.
However, if the sliding door 21 is pulled outward by a predetermined amount in order to open the sliding door 21 when the folded main wing 4 is present just outside the sliding door 21 as in this embodiment, the sliding door 21 may collide with.

Therefore, in this embodiment, when the sliding door 21 is opened, it is configured to operate as follows.
That is, when the sliding door 21 is slid to open the sliding door 21, the end of the sliding door 21 on the sliding direction side (in this embodiment, the rear end side of the sliding door 21) moves in the sliding direction. The end of the sliding door 21 on the opposite side to the sliding direction (in this embodiment, the front end side of the sliding door 21) moves in the sliding direction by a predetermined amount. After moving by a predetermined amount in the direction perpendicular to the sliding direction (outside), the sliding door 21 as a whole begins to slide in the sliding direction.

This will be explained in detail below. FIG. 8 is an image diagram of the rail, the guide roller, the guide roller holding section, and the sliding door viewed from above in order to explain the relationship between them.
As shown in FIG. 8, in this embodiment, the front ends of the two rails 11 are each bent inward. By adjusting the way the two rails 11 are bent, the above operation can be achieved when opening the sliding door 21.

That is, when the sliding door 21 is slid backward to open the sliding door 21 from the closed state (see 21α in the figure), the rear end side of the sliding door 21 moves in the sliding direction and moves outward by a predetermined amount. state (see 21β in the figure).
Then, when the sliding door 21 is further slid, the front end of the sliding door 21 moves in the sliding direction and moves outward by a predetermined amount (see 21γ in the figure). Thereafter, the sliding door 21 is in a state where the entire sliding door 21 slides in the sliding direction.

As shown in FIG. 5, when the main wing 4 is folded, the front side of the sliding door 21 is closer to the main wing 4 than the rear side.
Therefore, if the sliding door 21 is configured so that the entire sliding door 21 is pulled outward by a predetermined amount when the sliding door 21 is slid open, the front side of the sliding door 21 will come into contact with the main wing 4.

However, with the above configuration, when the sliding door 21 is slid open, the front side of the sliding door 21 is not immediately pulled out, but the rear side of the sliding door 21 is first pulled out, and it slides a little. After this, the front side of the sliding door 21 is pulled out.
Therefore, when the sliding door 21 is slid open, the sliding door 21 can be opened without hitting the folded main wing 4.

Furthermore, when sliding the sliding door 21 to close it, the sliding door 21 performs the opposite operation to the above-mentioned operation, so when the sliding door 21 is slid in the closing direction, the sliding door 21 first After the front side of the sliding door 21 is pulled into the body 2 side of the amphibious vehicle 1, the front side of the sliding door 21 is pulled in and closed. Therefore, even when sliding the sliding door 21 to close it, the sliding door 21 can be closed without colliding with the folded main wing 4.
Thus, with the above configuration, when sliding the sliding door 21 to open or close it, it becomes possible to slide the sliding door 21 without colliding with the folded main wing 4.

On the other hand, in order to more reliably prevent the lower side of the slide door 21 from swinging when the slide door 21 is opened and closed, the structure of the slide door 21 below the guide roller 21C may be devised.
However, as described above, in this embodiment, a rail cannot be provided in the portion of the body 2 corresponding to the lower end of the sliding door 21. Therefore, for example, it can be configured as follows.

That is, as shown in FIGS. 6 and 9(A) and (B), a door side rail 21D is provided on the inner surface of the sliding door 21, extending in the sliding direction of the sliding door 21 (in the present embodiment, the front-rear direction). . It is preferable that the door side rail 21D is provided below the inner surface of the sliding door 21.
Note that FIG. 9(A) is a diagram of the sliding door opening/closing structure 10 viewed from the outside of the air-land vehicle 1, and FIG. 9(B) is a diagram of the sliding door opening/closing structure 10 viewed from the rear. Moreover, illustration of the rail 11 is omitted in FIGS. 9(A) and 9(B).

As shown in FIGS. 6, 9(A) and 9(B), the door side rail 21D has a groove, and the groove of the door side rail 21D extends toward the inside of the body 2 of the amphibious vehicle 1. It's open.
Further, a regulating member 12 having a roller 12B attached to the tip of a roller holding portion 12A is disposed in a portion of the main body (body 2 of the amphibious vehicle 1) corresponding to the door side rail 21D. The roller 12B of the regulating member 12 is slidably engaged with the door side rail 21D, similar to the engagement between the rail 11 and the guide roller 21C described above.

When the sliding door 21 is slid to open or close, the roller 12B of the regulating member 12 is slidably engaged with the door rail 21D and moves along the door rail 21D.
With this configuration, even if a force is applied to the sliding door 21 in a direction that shakes the lower side of the sliding door 21 (that is, a direction perpendicular to the sliding direction of the sliding door 21) when the sliding door 21 is opened or closed, the roller of the regulating member 12 12B is engaged with the door side rail 21D, the sliding door 21 is restricted from moving in a direction perpendicular to the sliding direction of the sliding door 21, and does not move in that direction (that is, does not swing).

Therefore, as described above, by configuring the door side rail 21D provided on the sliding door 21 to engage the roller 12B of the regulating member 12 disposed on the main body (the fuselage 2 of the amphibious vehicle 1), the sliding It becomes possible to more reliably prevent the lower side of the sliding door 21 from shaking when the door 21 is opened and closed.

Note that, as described above, when sliding the sliding door 21 to open it, the sliding door 21 is actually pulled outward by a predetermined amount and then slid in the sliding direction to open it. Further, as shown in FIG. 8, in this embodiment, when the sliding door 21 is opened, the rear side of the sliding door 21 is first pulled out, and after sliding a little, the front side of the sliding door 21 is pulled out. It acts like it's being pulled out.
Therefore, as described above, when the movement of the sliding door 21 in the direction perpendicular to the sliding direction is completely blocked due to the engagement between the door side rail 21D and the roller 12B of the regulating member 12, the sliding door 21 is not allowed to slide. It becomes impossible to open it.

Therefore, for example, the roller holding portion 12A of the regulating member 12 is configured to be able to swing in the sliding direction of the sliding door 21, and the regulating member 12A is configured to be able to swing in the sliding direction of the sliding door 21. If the slide door 21 is configured to swing, it is possible to prevent the lower side of the slide door 21 from swinging when the slide door 21 is opened and closed, and to move the slide door 21 outward by a predetermined amount when the slide door 21 is slid open. You will only be able to pull it out.

Hereinafter, a specific explanation will be given based on a case where the sliding door 21 operates as shown in FIG. 8 when the sliding door 21 is opened.
In this case, the roller holding portion 12A of the regulating member 12 is capable of swinging around a swinging shaft 12C (see FIGS. 9(A) and 9(B)) extending substantially in the vertical direction, thereby causing the regulating member 12 to slide. It can be configured to swing in the sliding direction of the door 21 (ie, in the front-back direction).

In this case, as shown in the enlarged view of FIG. 10, the door side rail 21D is bent such that its rear end portion is directed outward.
When the sliding door 21 is closed (see 21α in the figure; that is, the distance between the sliding door 21 and the swing shaft 12C is the closest), the roller holding portion 12A of the regulating member 12 (see 12α in the figure) is engaged with the curved portion of the door side rail 21D, and the regulating member 12α is in a state of being inclined with respect to the surface direction of the sliding door 21.

Next, when the sliding door 21 is opened and the rear side of the sliding door 21 is pulled out by a predetermined amount (see 21β in the figure), the roller holding portion 12A of the regulating member 12 (see 12β in the figure) is The regulating member 12β swings around the swing axis 12C while being engaged with the curved portion of the door side rail 21D.
When the front side of the sliding door 21 is pulled out and the sliding door 21 moves in the sliding direction (see 21γ in the figure, that is, the distance between the sliding door 21 and the swing axis 12C is the farthest), the regulation The member 12 (see 12γ in the figure) further swings around the swing axis 12C and becomes perpendicular to the surface direction of the sliding door 21, and the roller holding portion 12A of the regulating member 12γ is moved against the door side rail 21D. It is in a state where it slides along the door side rail 21D while engaging with the linear portion.

Note that when closing the sliding door 21, the regulating member 12 moves (swings) in the opposite direction to that described above.
With this configuration, even when the sliding door 21 is pulled outward by a predetermined amount when sliding the sliding door 21 to open, the regulating member 12 follows the movement of the sliding door 21 and moves toward the swing shaft 12C. This makes it possible to prevent the lower side of the sliding door 21 from swinging when the sliding door 21 is opened and closed.

It goes without saying that the present invention is not limited to the above-described embodiments, and can be modified as appropriate without departing from the spirit of the present invention.
For example, in each of the above figures, the case where the left side sliding door 21 of the fuselage 2 of the amphibious vehicle 1 is opened and closed has been explained, but the case where the right side sliding door 21 is opened and closed is also explained in the same way.

1 Amphibious vehicle 2 Fuselage (main body)
4 Main wing 10 Sliding door opening/closing structure 11 Rail 12 Regulating member 12A Roller holding part 12B Roller 21 Sliding door 21C Guide roller 21D Door side rail

Claims (3)

In the sliding door opening/closing structure for opening and closing the sliding door by sliding it relative to the main body,
There is no rail in the part of the main body corresponding to the lower end of the sliding door, and a rail is arranged in the part of the main body corresponding to the upper end of the sliding door,
A guide roller fixed to the inside of the upper end of the sliding door is slidably engaged with the rail,
When the sliding door is slid to open and close, the guide roller is engaged with the rail and moves along the rail, thereby opening and closing the sliding door ,
The said rail is
arranged along the sliding direction of the sliding door,
A portion corresponding to the front side of the sliding door is curved in a direction that gradually moves away from the sliding door toward the front side,
When the sliding door is slid to open the sliding door, an end portion of the sliding door on the sliding direction side moves in the sliding direction and moves by a predetermined amount in a direction perpendicular to the sliding direction, and then, An end of the sliding door opposite to the sliding direction moves in the sliding direction by a predetermined amount in a direction perpendicular to the sliding direction, and then slides in the sliding direction;
A door side rail extending in the sliding direction of the sliding door is provided on the inner surface of the sliding door,
A regulating member having a roller at its tip is disposed in a portion of the main body that corresponds to the rear side of the door side rail when the sliding door is closed;
When the sliding door is slid to open or close, the roller moves along the door side rail while being slidably engaged with the door side rail,
The regulating member is configured such that a roller holding portion that holds the roller is swingable in the sliding direction of the sliding door, and swings in accordance with the movement of the sliding door when the sliding door opens and closes. is composed of
A sliding door opening/closing structure. A plurality of said rails are arranged,
The same number of guide rollers as the number of rails are fixed to the inside of the upper end of the sliding door,
The sliding door opening/closing structure according to claim 1, wherein each of the guide rollers is slidably engaged with each of the rails. An amphibious vehicle that can run on the ground and can also fly in the air with main wings,
Equipped with the sliding door opening/closing structure according to claim 1 or claim 2 ,
the main body is a fuselage of an amphibious vehicle;
An amphibious vehicle, characterized in that the sliding door is configured to be opened and closed by sliding along the body.

Images