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    • 2. 发明授权
    • Chair adjustment mechanism
    • 椅子调整机制
    • US06513879B1
    • 2003-02-04
    • US09712841
    • 2000-11-15
    • Douglas E. Stern
    • Douglas E. Stern
    • A47C1032
    • A47C3/30A47C1/022
    • This patent relates to ergonomically correct seating during long periods of time, especially for professionals who work with hands extended like dentists and hand surgeons, but also computer users and other office or assembly workers. While the immediate comfort is provided by the shape of the seat and the backrest and by the upholstery, the long time comfort is determined by proper sitting posture. Comfortable sitting posture is individual and requires a large range of adjustments for height, seat inclination and the positioning of the back support relative to the seat. Recognizing the importance of these adjustments—not only for comfort but also for avoiding back problems—this adjustment mechanism is designed to accomplish all three adjustments with a single lever. The mechanism is designed for use with the lever mounted on the right side or the left side of the chair to accommodate personal preferences. To avoid seat adjustment errors, which can be disastrous during surgical procedures, the three movements are arranged in a logical manner. In addition, the mechanism offers a 20° adjustment range for the seat inclination.
    • 该专利涉及在长时间内符合人体工程学正确的座位,特别是对于像牙医和手术外科医生一样伸展手的专业人士,还有计算机用户和其他办公室或组装工作者。 虽然通过座椅和靠背的形状以及室内装饰来提供直接的舒适度,但是通过适当的坐姿来确定长时间的舒适度。 舒适的坐姿是个人的,需要对高度,座椅倾斜度以及背部支撑件相对于座椅的定位进行大范围的调整。认识到这些调整的重要性 - 不仅是为了舒适而且为了避免背部问题 - 这种调节机制 旨在通过一个杠杆完成所有三个调整。 该机构设计用于安装在椅子右侧或左侧的杠杆以适应个人喜好。 为了避免座椅调整错误,这在外科手术过程中可能是灾难性的,三个运动以逻辑的方式排列。 此外,该机构为座椅倾斜度提供了20°的调节范围。