JP5229675B2 - Aircraft rescue rack - Google Patents

Description

The present invention relates to an aircraft rescue cradle used by being attached to an aircraft body, and is particularly suitable for a helicopter in which a hoist device is disposed outdoors.

Because helicopters can be hovered, they are often used to rescue rescuers and are carried out using a hoist device located above the doorway of the aircraft. After the rescuer is lifted up to the vicinity of the doorway of the aircraft by the host device, the crew in the aircraft is housed in the aircraft using a technique such as a sidewalk with the grounding leg and the step on it as a foothold.

Recently, a hoist column having a hoist device is arranged in the aircraft, and the hoist column is extended outside the aircraft, and the hoist column is stored and accommodated in the aircraft with the rescuer suspended near the doorway of the aircraft. There are some means. (Patent Document 1) In addition, there is an example in which an entrance hatch of an aircraft that can be hovered is used. This hatch is divided into two parts, upper and lower, and a hoist device is installed inside the hatch, and a gantry support is installed inside the lower side. The hatch is opened, and a rescuer is hatched by the hoist device on the hatch. There is a system in which a rescuer is accommodated in the aircraft while being supported to the lower side of the rescue platform by the platform support portion on the lower side of the hatch (Patent Document 2).

  JP 5-42897   JP2010-18274

  A conventional operation of accommodating a rescuer in a plane by using only a hoist device is a dangerous work for a rescue crew due to wind pressure caused by the rotation of a helicopter wing or a fluctuation of the helicopter itself. In addition, for the installation of hoist struts in the aircraft, the indoor space tends to be narrow, and in addition, a large amount of modification is required to install it on an existing helicopter.

  In the hatch for the entrance / exit, since the hoist device and the equipment for the gantry support are provided inside the hatch, the indoor space tends to be narrowed.

  The present invention is intended to solve the above-described problems of the conventional apparatus, and is a helicopter having a hoist device provided so as to protrude outside the fuselage as it is without reducing the space inside the aircraft. In this case, the purpose is to perform relief work safely.

Means to solve the problem

  The rescue cradle is a rescue cradle that is housed in the lower part of the fuselage so that it does not hinder flight during flight, and is used by extending the rescue cradle during rescue operations.

  A guide rail (2) having a traveling frame guide rail (2b) and a tilt base stopper (3) is fixedly attached to the grounding leg (G), and a drive motor (5) is attached to the guide rail (2). And has a traveling frame (6) which is fastened to the joint rod (5b) and reciprocates, and the operating link A (8), the operating link B (9) and the joint link (11) are connected to the traveling frame (6). A joint link is formed to form a parallel link, and a rescue stand (17) having a step (18) attached to the distal ends of the actuation link A (8) and the actuation link B (9), and the actuation link A ( 8) The raising / lowering link (10) is connected to the middle portion of the raising / lowering link (10), and the raising / lowering base axis (16) is joined to one end of the raising / lowering link (10). The tilting base is raised and lowered by engaging with the limiting protrusion (3b) provided on the tilting base stopper (3). A base point of rising or descending movement of the structure (4), and the inclined surface (3a) to slide to retract the rescue cradle raised or lowered mechanism (4) to the storage position.

Effect of the invention

  Rescuers and crews can ride on the rescue cradle, so they can safely move and contain the aircraft. Moreover, since the rescue stand is arranged outside the aircraft, the current indoor space can be secured. In addition, the device of the present invention can be attached to an existing helicopter by a slight modification.

  Front view of the aircraft rescue rack of the present invention (stored state)   Fig. 1 (b) arrow view   (B)-(B) Cross-sectional enlarged view of FIG.   Overall view of the advancement of the rescue rack raising / lowering mechanism   (C) arrow view of FIG.   State diagram with the rescue stand raised   Schematic of the rescue rack raising / lowering mechanism

The details of the present invention will be described with reference to the drawings.
1 to 2 show a state in which the rescue cradle device of the present invention is stored in the lower bottom surface (D) of the aircraft (A), and is stored on the inner side without protruding from the lateral width of the aircraft. The aircraft (A) is equipped with a rail mounting base (2c) at a position on the inner side of the ground leg (G) so that the direction does not hinder flight.

The rescue cradle transport mechanism (1) includes two groove-shaped guide rails (2) and a rescue cradle raising / lowering mechanism (4) installed on the guide rails (2). The guide rail (2) Are arranged at a certain interval, fastened to each other by the rail mounting base (2c), and fixed to the upper side of the ground leg (G) of the aircraft (A).
The other guide rail (2) guides the starter motor mounting base (2a) and the traveling base (6) for installing the drive motor (5) which is an element of the rescue base raising / lowering mechanism (4). A traveling frame guide rail (2b) and a raising / lowering point stopper (3) serving as a raising / lowering point are installed.

  As shown in FIGS. 1 to 7, the rescue frame raising / lowering mechanism (4) is fixed to the drive motor mounting frame (2a) and fixed to the drive shaft (5a) and the drive shaft (5a) (5b) ) And a drive motor (5) with a wheel (7) in front of the drive motor (5) and partly joined to a joint rod (5b) to form a box shape There is a traveling gantry (6), and it is possible to travel in the lateral direction in the drawing in the traveling gantry guide rail (2b) using the wheels (7) provided on the traveling gantry (6) as a guide.

On the traveling frame (6), the working link A (8) and the working link B (9) forming a parallel link are joined by a joint shaft A (12) and a joint shaft B (13), respectively. .
At the intermediate part of the joint axes A and B (12, 13), the joint link (11) is joined by the connecting shafts (14, 15), respectively, and at the upper end, a pair of rescue racks (17) are connected to the connecting shaft (15). It is jointed by.
A step (18) is fixed to the top of the rescue stand (17).

  One end of the raising / lowering link (10) is joined to the intermediate part of the operation link A (8), and the other end of the raising / lowering link (10) is joined to the raising / lowering base shaft (16). When the drive motor (5) is driven so that the rescue stand raising / lowering mechanism (4) is in the forward direction (left direction), the tilt base axis (16) is an inclined surface of the tilt base stopper (3). (3a) rolls to advance the rescue cradle raising / lowering mechanism (4) and rolls up to the limit projection (3b). As shown in FIGS. 4 and 5, the rescue cradle raising / lowering mechanism (4) At the same time as stopping the forward movement, it serves as an action point for raising the rescue stand raising / lowering mechanism (4) to the maximum position as shown in FIG.

On the contrary, when the drive motor (5) is driven from the state of FIG. 6 so that the rescue stand raising / lowering mechanism (4) is in the backward direction (right direction), the raising / lowering base shaft (16) is the limiting protrusion (3b). Since the inclined surface (3a) starts rolling further and rolls, the raising / lowering mechanism (4) is in the stored state as shown in FIGS.
In addition, since the step board (18) is detachably attached to the rescue stand (17), the step board (18) can be replaced depending on the situation, and it is desirable that the structure has a lattice shape or a wire net or the like in consideration of strength. .

Next, the operation of the present invention will be described.
The aircraft (A) is hovering from the state in which the platform (18) shown in FIGS. After the load or rescuer (H) is lifted up to the doorway (E), when the drive motor (5) is first driven, the drive shaft (5a) moves linearly. (7) rolls forward while being guided in the traveling platform guide rail (2b).
At the same time, the shaft for raising / lowering point (16) also rolls on the inclined surface (3a).

Still further, when the drive motor (5) is driven, the rescue stand raising / lowering mechanism (4) continues to advance, and finally the advancement stops when the raising / lowering base shaft (16) is fitted into the limiting projection (3b). Therefore, the raising / lowering link (10) turns rightward with the raising / lowering base axis (16) as the center of rotation.
As a result, the operation links A and B (8, 9) turn right, and at the same time, the rescue stand (17) takes the raised position as shown in FIG.

As a result, since the platform (18) is also located near the doorway (E) of the aircraft, the crew can easily get on the platform (18), and the luggage or rescuer (H) can easily and safely enter the cabin. Can be transported.
When the luggage or rescuer (H) has been accommodated in the aircraft, the gantry (6) moves backward by rotating the drive motor (5) in reverse, so that the raising / lowering axis (16) is also inclined (3a) As a result, the raising and lowering link (10) acts to fold the operating links A and B (8 and 9), and finally the rescue stand raising and lowering mechanism (4) is shown in FIG. The stored position is as shown in FIG.

In order to escape the wind pressure generated during the flight of this device, it is possible to cover the three directions except the side (left side in the figure) where the rescue stand (17) operates with a windproof cover or the like.
The drive motor (5) can use an in-flight driving source.

  As described above, the present apparatus is not limited to a helicopter but can be applied to any aircraft that can be hovered.

  By installing a guide rail (2) on the grounding leg (G) on the lower bottom surface (D) of an existing aircraft and adding a drive circuit for the drive motor (5), this device can be installed on an existing aircraft. Can be applied.

A Aircraft B External hoist device C Hanging wire D Bottom bottom of machine body E Entrance / exit F Leg G Grounding leg H Baggage or rescuer 1 Rescue platform transport mechanism 2 Guide rail 3 Tilting base stopper 4 Rescue platform tilt mechanism 5 Drive motor 6 Traveling base 8 Actuation link A
9 Working link B
10 Tilting link 16 Tilting base axis 17 Rescue base 18 Step

Claims (1)

  An aircraft rescue rack that is used when a rescuer is lifted by a hoist device provided outside the aircraft and accommodated in the aircraft, and includes a travel platform guide rail (2b) and a tilt base stopper (3) And a guide motor (5) having a drive shaft (5a) fixed to a joint rod (5b) on the guide rail (2). And a travel base (6) that is fastened to the joint rod (5b) and reciprocates while being guided by the travel base guide rail (2b). An operating link A (8) is connected to the travel base (6). ) And the working link B (9) are joined to form a parallel link, and a rescue stand (step 18) is attached to the tip of the working link A (8) and the working link B (9) ( 17) and the above-mentioned working phosphorus A raising / lowering link (10) is coupled at an intermediate portion of A (8), and a raising / lowering base axis (16) is joined to one end of the raising / lowering link (10). 16) is engaged with the restricting projection (3b) provided on the above-described stopper (3) for raising and lowering base, and the rescue rack raising and lowering mechanism (4) is used as the base point for the raising or lowering operation, and the inclined surface (3a) is used. An aircraft rescue gantry characterized by sliding and retracting the rescue cradle raising / lowering mechanism (4) to a retracted position.

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