JPS58200765A - Reinforced wing structure - 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 The present invention relates to a reinforced wing structure formed by integrating open ends of wing aggregates provided in a fuselage or a wing platform in an appropriate manner.

Traditionally, wing structures for model airplanes and glider aircraft have generally been assembled using the natural shape of the aggregate, but an example of constructing a wing using the elasticity of the material is to force a bent rib. There were only examples of wings being opened or folded and glued to ribs. In order to reduce the weight of the wing, the strength is reduced, thereby preventing distortion and twisting of the wing due to external disturbances or changes in the natural environment, such as drying and temperature changes, which result from contraction and expansion of the wing component materials, thereby improving flight performance. The problem was how to reduce the weight of the aggregate in order to improve the performance.

For example, in the case of light planes, in which paper is pasted only on the upper surface of the wings, the rigidity and elasticity of the bamboo strips is extremely high compared to other materials such as balsa wood, and the wings collide with objects during flight. However, damage to bamboo strips is extremely rare, but it is difficult to prevent the distortion of the bamboo strips themselves due to changes in natural conditions, and the wing sagging and distortion that occur when the paper expands and contracts. (1) By bundling two strings together, (2) By adhering reinforcing material to the base of the strings, (3) By using balsa wood, which has less distortion than bamboo strings, we can reduce the weakness in the event of a collision. It was common to crush them.

The present invention aims to apply strain to the wing aggregate in a predetermined direction and utilize the stiffness that increases in response to the strain to strengthen the wing.
EXAMPLE 1 This example relates to a light plane in which a wing outer garden is formed using bamboo bars, and the bamboo bars are attached to a wing base to form a main wing.

That is, from Figure 1 to Figure 3, four support holes for the main wing bones 2-1, 2-2, 2-3, and 2-4 of the bamboo rods are provided in the wing platform 1, and the bamboo rods of the required dimensions are made symmetrically. The wing bars 2-1 and 2-4 forming the outer edge of the wing are circular in cross section, and the reinforcing bars 2-2 and 2-3 arranged inside the wing are supported by aluminum connecting pipes 3-1 and 3. The support part is made thinner near the tip and has a circular cross section.
-1 and reinforcing bar 2-2, and on the trailing edge side, wing bar 2-4 and reinforcing bar 2-3 are tied together. The front and rear wing ribs 2-1 and 2-4 are connected to aluminum pipes 3-1 and 2-4, respectively.
3-2, the ends of the U-shaped bent rods 2 are inserted into each and connected integrally to form the outer edge of the main wing.

The support holes passing through the reinforcing bars 2-2 and 2-3 are provided slightly apart from the support holes of the wing bars 2-1 and 2-4, respectively, and are provided at a slight distance from the support holes of the wing bars 2-1 and 2-4, respectively, and are attached to the wing paper to which the wing paper is attached. It is installed along the curve of the top surface of the table, and positioned so that the top surface matches the shape of the airfoil behind the paper. When the open ends of the wing bars 2-1, 2-4 and the reinforcing bars 2-2, 2-3, which have been separated in this way, are tightened with the binding string 4-1, the boundary between the adjacent support holes of the wing platform is tightened. By tightening the wall, the main wing can be firmly fixed to the wing platform without using adhesive. The curves created in the reinforcing ribs and wing ribs tighten the tissue of the ribs, causing them to adhere to the bow-like curved state formed by binding, preventing cracks and distortions from occurring easily, and improving the structure of the main wing. strengthened. Also, when tying, you can make small adjustments such as tying it to match the slight curve of the wing edge. The reinforcing bars in this example are finer than the wing bars.

Example-2 In this example, reinforcing aggregates 2-5 and 2-6 are attached directly to the fuselage 1-1 and installed inside the wing in Figures 4 and 5, and when installed, A
1. Reinforcing aggregate 2-5, 2- at the position of the broken line shown in A2
6 at the tip is tightened with studs 4-2, and is therefore curved into an arched shape.

Of the ribs 5 fixed to the wing edge aggregates 2', the combined tips of the reinforcing aggregates 2-5 and 2-6 are integrally fixed to the outer ribs 5, and the ribs near the fuselage is also fixed integrally with the middle of the reinforcing member.

In this example, the reinforcing aggregate combined at the tip has an arched shape, which strengthens the rigidity against vertical distortion and torsion, and the rib 5 fixed at the tip prevents the wing from bending in the vertical direction, and in the middle. The ribs provided have the effect of increasing the rigidity of the entire wing against twisting and distortion. Note that the present invention is not limited to the above two examples, and is clearly effective in increasing the rigidity of the blade.

[Brief explanation of the drawing]

Figures 1 to 3 are scaled-down views of Embodiment 1 in which the present invention was implemented on a light plane. Figure 1 is a partial top view of the main wing structure before pasting paper, and Figure 4 is the first part of the main wing structure. Cross section a in the figure
-a', Figure 3 is a partial front view, Figures 4 and 5 are structural diagrams of a model airplane wing that covers the upper and lower surfaces, and are scaled-down views of Example-2. Figure 4 is a diagram of the fuselage and main wing bones. The partial top view, FIG. 5, is the section b--b' in FIG. 1... wing platform, 1-1... fuselage, 2... bending bar, 2'... wing edge aggregate, 2-1, 2-4... wing bar 2-2, 2-3... reinforcing bar,
2-5, 2-6... Reinforcement aggregate, 5... Rib. Patent applicant Masaru Tsuda

Claims (2)

[Claims] (1) A reinforced wing made by bending one or both of a plurality of aggregates provided symmetrically at appropriate intervals on the fuselage or wing platform, and tightening the open ends together. (2) The reinforced wing according to claim 1, wherein the plurality of aggregates pass through two support holes provided at appropriate intervals in the fuselage or the platform.