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    • 77. 发明授权
    • Device for raising a chair
    • 升高椅子的装置
    • US3952983A
    • 1976-04-27
    • US560862
    • 1975-03-21
    • Alain Crochet
    • Alain Crochet
    • A47C3/38F16M11/38
    • A47C3/38
    • The invention concerns a device for raising a chair, for children's use, comprising a cross-beam assembly including articulatedly interconnected telescopic cross-beams, spring means associated with each cross-beam, a leg secured to each end of each cross-beam, and means on the normally upper part of each leg for engaging the leg of a chair that is to be mounted and held on the device, the cross-beams being telescopically extensible against the force of the spring.
    • 本发明涉及一种用于升起儿童使用的椅子的装置,包括横梁组件,其包括铰接地互连的伸缩横梁,与每个横梁相关联的弹簧装置,固定到每个横梁的每个端部的腿,以及 在每个腿的正常上部的装置,用于接合待安装和保持在装置上的椅子的腿部,横梁可克服弹簧的力可伸缩地延伸。