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    • 75. 发明公开
    • Chair base
    • Fusssternfüreinen Stuhl。
    • EP0659368A1
    • 1995-06-28
    • EP94309394.8
    • 1994-12-15
    • SHEPHERD PRODUCTS, INC.
    • Perl, Ludovic A.
    • A47C7/00
    • A47C7/004Y10T403/635
    • A chair base (10) adapted to support a column (12) and a chair seat (14) includes a hub (20) having a central axis and a plurality of legs (22) attached to and radially extending from the hub. A bore (36) extends concentrically along the axis through the hub defining an interior wall (34) within the hub. The interior wall includes an upper conical wall portion (46) extending between a circular first upper edge (48) and a circular first lower edge (50). The first upper edge has a larger diameter than the first lower edge such that the conical wall portion tapers inwardly and downwardly. The interior wall also includes a lower wall portion (54) disposed below the upper conical wall portion which extends between a circular second upper edge (56) and a circular second lower edge (58). The second upper edge of the lower wall portion has a diameter which is smaller than the diameter of the first lower edge of the upper conical wall portion. A generally annular wall portion (62) extends between the second upper edge (56) of the lower wall portion and the first lower edge (50) of the conical wall portion. The annular wall forms an inwardly extending step for engaging the bottom end (16) of the column (12) when the column is inserted into the bore and thereby prevents the column from moving downwardly through the bore past a predetermined point during use.
    • 椅座包括具有中心轴线和多个腿部的轮毂,所述腿部连接到轮毂上并且从轮毂径向延伸。 孔径沿轴线同心地延伸通过轮毂限定毂内的内壁。 内壁包括在圆形第一上边缘和圆形第一下边缘之间延伸的上锥形壁部分。 第一上边缘具有比第一下边缘更大的直径,使得锥形壁部分向内和向下渐缩。 内壁还包括设置在上锥形壁部分下方的下壁部分,其在圆形第二上边缘和圆形第二下边缘之间延伸。 下壁部分的第二上边缘的直径小于上锥形壁部分的第一下边缘的直径。 环形壁部分在下壁部分的第二上边缘和锥形壁部分的第一下边缘之间延伸。 当柱插入孔中时,环形壁形成向内延伸的台阶,用于接合柱的底端,从而防止柱在使用期间通过孔超过预定点向下移动。
    • 79. 发明公开
    • HITCHING ASSEMBLIES
    • 休息组装
    • EP0433282A4
    • 1992-01-02
    • EP88907571
    • 1988-09-05
    • BURETTE, JOHN
    • BURETTE, JOHN
    • A01B59/043A01B59/06A01B71/06
    • A01B71/063A01B59/062Y10T403/635Y10T403/7039
    • A hitch assembly (10) for automatically coupling a tractor's towing linkage to an implement is formed from opposed substantially identical frames (11 and 15) provided with pairs of respective complementary spigot and socket connectors (26 and 31) which engage to locate the frames (11 and 15) in a joined relationship. Releasable locking means (32 and 45) are provided for locking the frames together. The frames (11 and 15) are also provided with coupling means (12 and 14a) so that one frame (11) can be coupled to the towing linkage and the other frame (15) can be coupled to the towing linkage connections on the implement. The hitch assembly may also include complementary drive transfer assemblies supported on each frame (11 and 15). The drive transfer assembly on the first frame (11) is connectible to the drive shaft of a prime mover and the drive transfer assembly on the second frame (15) is connectible to the driven shaft of an implement and wherein the drive transfer assemblies couple to transmit drive from the drive shaft to the driven shaft when the frames (11 and 15) cooperate to secure the implement to the prime mover.
    • PCT No.PCT / AU88 / 00342 Sec。 371日期1991年1月16日 102(e)日期1991年1月16日PCT提交1988年9月5日PCT公布。 出版物WO90 / 02481 公开了一种用于将工具联接到原动机的联结组件,其包括具有用于将第一连接器组件安装到原动​​机上的安装座的第一连接器组件,以及具有安装件 用于将第二连接器组件安装到工具上。 为第一连接器组件和第二连接器组件提供一个或优选地多个互补的插头和插座构件,其中插塞构件和插座构件设置在连接器组件上的中间位置 并且在中间位置的相对侧的较低外部位置处。 插座构件设置有喉部,其设置成其入口轴线基本上是水平的,并且进入喉部部分由向外发散的唇部限定。 提供保持装置用于保持接合在插座构件中的插塞构件,用于将连接器组件可操作地固定在一起,以将工具连接到原动机。 为了将工具连接到拖拉机,操作员可以通过插座和插头构件的瞄准器对准而将拖拉机反向驱动到工具。 由于插座构件是水平设置的,所以如果原动机和工具不对准,则发散唇部部分有助于将插头构件引导到插座构件的喉部。