JPS61122099A - Parachute type wing and aircraft with said wing - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a parachute-type wing used in a small airplane, a hang glider, etc., and an airplane equipped with the parachute-type wing 3.

(Prior Art) Conventionally, an airplane equipped with a parachute-type wing has been constructed by sewing a large number of cloth partitions between foldable soft rectangular upper and lower sheets of cloth or the like. A large number of streamer-like airflow passages are formed in parallel between the upper and lower sheets, each with a relatively large air inlet at the leading edge of the blade and a small air outlet at the trailing edge of the blade. A structure in which a parachute-type wing is connected to an aircraft body with an engine-driven propulsion propeller facing backwards at the rear by multiple suspension ropes is widely known.

(Problem to be solved by the invention) However, in the conventional aircraft as described above, the entire wing is made of cloth or the like and is foldable and flexible, so at the time of takeoff, multiple assistants are required to carry a parachute at the rear of the aircraft. A tedious auxiliary work was required to support the airfoil and open the airfoil sufficiently in advance to expose it to the wind sent from the aircraft's propeller, and also when making sharp turns during flight or when the wind direction or speed suddenly changed. At times, the shape of the parachute-shaped wing is easily deformed, which may lead to accidents such as stalling.Furthermore, the air flow passage is opened at the leading edge of the wing, which plays an important role in generating lift, so it is not effective. This also has the drawback of requiring a propulsion engine with a considerable amount of horsepower, since this hinders the generation of lift force and the air resistance flowing through the air flow passage is large.

An object of the present invention is to provide a parachute-type wing and an airplane equipped with the same, which eliminates the drawbacks of the conventional parachute-type wing.

(Means for Solving the Problems) In order to achieve the above object, the parachute-type wing of the present invention basically includes a wing body made of a foldable soft sheet, which has a front edge along its entire length. A flexible shape-retaining body whose edge extends on the ground to keep the wing body open is provided in a removable manner, and the shape-retaining body has at least a front surface in its cross section formed into an approximately semicircular arc shape. Also, the structure is as follows.

The wing body has a developed planar shape that is rectangular, elliptical,
They come in various shapes such as triangular and flat pentagonal shapes, and are made of foldable flexible sheets such as synthetic fiber cloth such as nylon, various other fiber cloths, synthetic resin sheets, and synthetic resin-treated cloth.

The above-mentioned shape-retaining body is columnar, rod-shaped or plate-shaped, preferably lightweight, and includes a flexible airtight bag filled with a gas such as air or helium, styrene, urethane,
A flexible bag filled with foam such as rubber, feathers, cotton, etc., reinforced plastic using glass fiber 1, carbon sex, etc., a composite of the above-mentioned materials, etc. are selectively used as appropriate. .

An example in which the present invention is applied to an airplane equipped with a parachute-type wing will be described below with reference to the drawings.

Hirohiro! The parachute-type wing fl+ illustrated in Fig. 16 is made by folding the front end portion of the wing body (2) made of rectangular cloth from side to side and sewing it to the back side of the wing body (2). A shape-retaining body storage bag (3) extending over the entire length of the front edge of (2) is formed, and a lightweight shape-retaining body (4) consisting of an air-filled bag in this example is detachably stored in the bag (3). It is. The wing body (2) is made by stitching together a number of pieces of cloth of a predetermined width in parallel, forming a hanging cable loop bag (5) - extending in the front-rear direction at each seam part, and suspending the rope inside these loop bags (5) -. Insert and sew the cables respectively, and attach the front suspension cable f61 from the leading edge of the wing.
- are the rear suspension cables (61'-i) each extending from the trailing edge of the wing. At the left and right side ends of the wing body C2+, there are small and medium sleeve pieces +71 that roughly extend over the entire length of the side sides of the wing body, (71t-sewn, and front side suspension ropes (8) are sewn to the sleeve pieces (7), (7), respectively.
1, +81 and the rear side suspension ropes f81' and (81') are connected at one end.

The packaging body +91 of the shape retaining body (4) is a cylindrical bag made of a flexible and airtight lightweight sheet such as a synthetic resin sheet, a rubber sheet, or an abrasive cloth as shown in Figure 7. A valve that can be opened and closed is attached to both ends of the valve.
Based on this explanation, the main body 19+ is filled with air.

Both ends of the shape-retaining body storage bag (3;) are formed to be openable and closable with a zipper or the like, so that the shape-retaining body (4) can be put in and taken out.

As shown in Figure 1.2.3, the aircraft body α9 to which the hub-ute type wing is to be attached has a seat (I4) installed in the center of a T-shaped chassis consisting of a vertical bone α force and a horizontal bone 0, and a seat (I4) behind it. The engine αQ is installed on the installed pedestal, and the fuel tank is installed under the pedestal. Suspension rope support arms α9.0 are attached to the left and right from the middle part of the column a second that stands up behind seat I.
A front ring (-) and a rear ring (-) for attaching a group of suspension ropes and a rear ring (-) are respectively connected to the arms (alpha) and (4). (Company) is a throttle lever for controlling the engine for ascending and descending maneuvers, (4) is a rudder pedal for left and right turning maneuvers, and --- is a wheel.

When flying, divide all the slings of a parachute-shaped stem (! (6 toes and front side sling + 81, (81 is left front ring (2)
, the rear sling 16+'- and the rear sling 18+', +
81' to the left rear ring ■'', and connect the left control cable (6
``, and connect the control cable +or to the left side rudder pedal. Also, for the other right suspension rope group, use the same method as above to connect the right side front and rear rings and the left side rudder pedal. )′
At the same time, connect the right control cable (6r) to the right rudder pedal (company). Next, connect the parachute type stem (
Open 11 and place it behind the aircraft +I+). At that time, the shape support (4) is parachute type I! (The front edge of No. 11 is kept in an extended state from side to side, thereby creating a parachute-shaped true fl
Keep the whole thing open. In this state, when the propeller a1 is rotated by starting the engine 0I of the aircraft <Ill, the airflow is sent to the entire rear wing (IJ) and the wing (υ
The parachute immediately expands into a parachute wing shape, and then the engine rotation is increased by operating the throttle lever (to), and the aircraft aυ moves forward, and the resistance from the airflow and the gravity of the suspension of the aircraft due to the suspension lines balance each other. The overall shape of the wing (11) and the shape of the airfoil cross section are quickly formed, which generates lift and initiates flight. can.

During flight, the engine speed is increased or decreased by operating the throttle lever to ascend or descend, and the rudder pedal
Turn left and right by centering on one side of the company. Meanwhile, the wing (11) bends downward when viewed from the front to enable stable flight. Also, the leading edge surface of the wing + IJ is shaped like a shape-retainer (
4) Since it has an airfoil cross section, it can fly with a good lift-drag ratio.

When the aircraft I lands and loses forward force, the entire wing (11) tilts to the rear of the aircraft I, creating a flare effect and stopping the aircraft (11) due to air resistance acting on the entire wing. When the aircraft a0 stops, the wing (1) is wrinkled while maintaining the shape of the leading edge by its shape retainer (4).After the flight is completed, the shape retainer (41)
Open valve aq to let out the air, and then fold the entire wing (11) compactly.

In another parachute-type stem (l&) shown in FIG. A valve (10a) is attached to each mounting body, and a shape retainer (24a) consisting of an air bag with a semicircular cross section is placed inside a shape retainer storage bag (23,) formed at the trailing edge of the wing. It is housed in a removable manner, and the other structures are substantially the same as those in Figures No. ≠ and JS.

Another embodiment (1b) of the parachute type true in FIG.
The wing body (2b) has a double structure of upper and lower sheets,
Storage bags (:5b), (Z3b) at the front edge and rear edge, shape retaining body (4b) made of styrene resin foam, (Z4
b) is directly stored in a removable manner, and the other structures are No. ≠, 516
substantially identical to the figure.

In addition, in each of the parachute molds mentioned above, a plurality of shape support storage bags (for example, two at an appropriate interval in the center of the wing) are provided on the wing body in parallel with the above-mentioned hanging cable passage bags, and the shape support storage bags are placed in these bags. It is also possible to obtain a structure in which the holder is detachably stored.

(Effects of the Invention) The parachute-shaped stem of the first invention of the present application can maintain the shape of the wing body in an open state by elongating the leading edge of the wing using the shape-retaining body, and therefore can be used for small airplanes and hang gliders. When used on the wings, it becomes possible to take off easily without the help of an assistant, making it extremely convenient to use.
Furthermore, after use, the shape retaining body can be removed from the wing body and folded into a compact size, making it convenient to transport and store.

According to the parachute-type stem of the second invention of the present application, the shape-retaining bodies at the leading and trailing edges of the wing can further maintain the shape of the wing body in an open state, thereby making it suitable for use on small airplanes and hang gliders. - When used, it allows for even easier takeoff.

In addition to the effects of the first invention, the airplane equipped with the parachute mold arrangement according to the third invention of the present application has the advantage that the shape-retaining body helps to maintain the open state of the wings even during flight, so when the airplane makes a sharp turn and when the wind direction It is effective for stable flight when the wind speed changes suddenly, and since the leading edge of the parachute mold is formed into a semi-circular cross-section by the shape-retaining material, it has an aerodynamically good shape with a good lift-drag ratio. This not only improves flight performance, but also has the advantage of requiring only a small horsepower propulsion engine.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and Fig. 1 is a front view of an airplane equipped with a parachute type device in flight, Fig. 2 is a side view of the same, Fig. 3 is a plan view of the aircraft, and Fig. ≠ is a parachute type FIG. 6 is a partially omitted enlarged sectional view taken along the line W-W in FIG. 1A, and FIG. 7 is a partially omitted enlarged front view of the shape retaining body. Figure 1r is a partially omitted enlarged cross-sectional view of another example of the Lachute type Takashi, Fig. 7 is a partially omitted enlarged front view of another example of the shape support, and Fig. 1O is a partially omitted enlarged cross-sectional view of the Lachute type Takashi. It is a partially omitted enlarged cross-sectional view of the embodiment. 8/a, /b...parachute mold placement, 2, mu, 2b
---Wing body, ≠, IAaSll-'h, review,
2 Hirob...morphomorphic body, Otsu, ≦ζg, g'... hanging rope,
ll...Aircraft, /6...Engine, 17...Propeller. Patent Applicant Toyo Giken Kogyo Co., Ltd. Agent Mr. Minato 1) Takeshi Naka □ 1゛. , Pu 3 Knee 1.1 move = Shi Figure 1

Claims (3)

[Claims] (1) A shape-retaining body that has flexibility over the entire length of the leading edge of the wing body made of a foldable flexible sheet so that the leading edge extends at least substantially on the ground and maintains the wing body in an open state. The shape-retaining body is a parachute-type wing in which at least the front surface of the shape-retaining body is formed into a substantially semicircular arc shape in its cross section. (2) To maintain the wing body in an open state by extending at least approximately the entire length of the leading edge and trailing edge of the wing body, which is made of a foldable flexible sheet, on the ground. A parachute-type wing, wherein a shape-retaining body having flexibility is detachably provided, and the shape-retaining body at the leading edge portion has at least a front surface formed in a substantially semicircular arc shape in its cross section. (3) A parachute-type wing is connected to a fuselage including an engine and a backward-facing propulsion propeller fixed to the rotating shaft of the engine at the rear of the chassis by a number of hanging ropes, and the parachute-type wing is configured to: A flexible shape-retaining body is detachably attached to the entire length of the leading edge of the wing body made of a foldable flexible sheet so that the leading edge extends at least substantially on the ground and maintains the wing body in an open state. An airplane equipped with a parachute-type wing, wherein the shape retaining body has at least a front surface formed in a substantially semicircular arc shape in cross section.