ROTATIONAL DRIVING DEVICE,申请号JP19980211367-传众专利搜索

ROTATIONAL DRIVING DEVICE

申请公布号：JPH1190848(A)

申请号：JP19980211367

申请日期：1998.07.27

申请公布日期：1999.04.06

申请人：

KYOEI SEIKO:KK

发明人：KOUCHI HIROYUKI

分类号：B25B21/00;B25B21/02;(IPC1-7):B25B21/02

主分类号：B25B21/00

摘要：PROBLEM TO BE SOLVED: To provide a rotational driving device whose construction as a whole is made small by increasing the torque and which is structured as allowing even an unskilled person to perform assembly easily. SOLUTION: A casing body 1 of a rotational driving device is internally furnished with an air motor 2 and a torque generating part 40 having a rotary 41 rotated by the air motor 2, and an anvil head 63 is rotated by the rotary 41. The air motor 2 is composed of a rotor 12 on which a plurality of vanes 11... are fitted radially in such a way as capable of emerging and retreating, a cylinder 10 in which the rotor 12 is fitted, and an upper plate 14 and lower plate 15 which are fixed to the upper surface and lower surface of the rotor 12 and fitted in the cylinder 10, and a plurality of balls 20 as a bearing are laid between the peripheral edges at the ends of the cylinder 10 and the peripheral edges of the plates 14 and 15, and the plates 14 and 15 rotate in a single piece in relation to the cylinder 10 with the rotation of the rotor 12.