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    • 1. 发明授权
    • Structural supports and aircraft landing gears including such supports
    • 结构支撑和飞机起落架包括这种支架
    • US4537374A
    • 1985-08-27
    • US405647
    • 1982-08-05
    • Pierre BarnoinJacques M. N. MensGilbert Merle
    • Pierre BarnoinJacques M. N. MensGilbert Merle
    • B64C25/58B64C25/60F16F7/12
    • B64C25/60F16F7/125
    • A structural support comprises inner and outer elements which are telescopingly engaged, a cage secured to the inner element and having apertures in which balls are disposed which are disposed radially between the two elements, and a frangible connection securing the two elements against relative axial movement. In the locked relative positions of the elements, the outer element has locally an increased internal diameter portion and the balls are radially disposed in this position or are moved into the portion on being subjected to an axial force which breaks the frangible connection, so that the relative axial movement of the elements results in the ball plastically deforming the outer element and absorbing energy from the force to protect the body carried by the support. The support can be used to provide a brace operating as a strut and/or a tie, or a shock absorber, or, by mounting a damping piston slidably in the inner tubular element can provide a shock absorbing piston and cylinder unit. The outer tubular element may itself form an external cylinder or may be a liner in an external cylinder.
    • 结构支撑件包括可伸缩地接合的内部和外部元件,固定到内部元件的笼,并且具有设置在其中径向位于两个元件之间的球的孔,以及将两个元件抵抗相对轴向移动的易碎连接。 在元件的锁定的相对位置中,外部元件具有局部增加的内径部分,并且球径向地设置在该位置或者在经受破坏易碎连接的轴向力的部分中移动到该部分中,使得 元件的相对轴向运动导致球塑性地使外部元件变形并且从力吸收能量以保护由支撑件承载的身体。 支撑件可用于提供作为支柱和/或连接件或减震器操作的支架,或者通过可滑动地安装在内部管状元件中的阻尼活塞可以提供减震活塞和气缸单元。 外部管状元件本身可以形成外部圆筒,或者可以是外部圆筒中的衬套。
    • 2. 发明授权
    • Skid landing gear provided with components having a device for absorbing
energy by plastic deformation and/or for limiting stress, and
components of this type
    • 提供具有通过塑性变形吸收能量和/或限制应力的装置的组件的这种类型的组件
    • US4558837A
    • 1985-12-17
    • US559549
    • 1983-12-08
    • Jacques M. N. MensPierre BarnoinMichel J. L. Martin
    • Jacques M. N. MensPierre BarnoinMichel J. L. Martin
    • B64C25/52B64C27/33
    • B64C25/00B64C25/52B64C2025/325
    • Skid landing gear provided with components having a device for absorbing energy by plastic deformation and/or for limiting stress, and components of this type.According to the invention, each of two undercarriage parts comprises a skid 170 connected to the structure to two crosspieces 175 and 176 that are hinged on the structure about an axis parallel to the hinge axis on the structure of the other crosspiece of the same undercarriage part, and at least one component 181 that has a main mechanical and/or hydraulic function, such as a strut, a cross-bracing or control jack, a shock absorber or a shock absorber jack, the component being provided with a device for absorbing energy by plastic deformation and/or for limiting stress, and is connected on the one hand to a crosspiece 176 of the respective undercarriage part and on the other hand either to the corresponding skid 170 or to the structure of the aerodyne.The invention is especially suited to use on helicopters.
    • 提供具有通过塑性变形吸收能量和/或限制应力的装置的组件的这种类型的组件。 根据本发明,两个底架部件中的每一个包括连接到两个横梁175和176的结构的滑动件170,该两个横梁175和176围绕平行于铰链轴线的轴线铰接在同一起落架部件的另一横梁的结构上 以及具有主要机械和/或液压功能的至少一个部件181,例如支柱,交叉支撑或控制千斤顶,减震器或减震器千斤顶,该部件设置有用于吸收能量的装置 通过塑性变形和/或限制应力,并且一方面连接到相应起落架部分的横档176,或者另一方面连接到相应的滑块170或与空气的结构。 本发明特别适用于直升机。