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    • 55. 再颁专利
    • Friction spinning frame
    • 摩擦纺纱机
    • USRE32494E
    • 1987-09-08
    • US937662
    • 1986-12-03
    • Meiji AnaharaShigeru Muramatsu
    • Meiji AnaharaShigeru Muramatsu
    • D01H4/20
    • D01H4/20
    • A friction spinning frame including a pair of twisting rollers disposed substantially in parallel and driven in the same direction to each other at a small gap therebetween to form a yarn forming zone of a valley shaped profile on upper surfaces of the twisting rollers along the gap. At least one of the twisting rollers is a perforated hollow roller including an outer shell having a plurality of perforations on the entire outer surface thereof and a suction device for providing a suction force through the perforations, whereby staple fibers are twisted to form a yarn while being sucked and held on the yarn forming zone. A supporting system of the perforated twisting roller is such that a suction pipe, a part of which is accommodated in the outer shell and has a suction mouth extending close to an inside wall of the outer shell in the axial direction of the perforated roller, is fixedly secured to a machine frame; a beariung is fixedly accommodated in the suction pipe; and a shaft is rotatably supported by the bearing at one end portion thereof and is fixedly secured to the oute shell at the other end portion thereof.
    • 57. 发明授权
    • Upright piano type action
    • 直立钢琴类型动作
    • US08294009B2
    • 2012-10-23
    • US13051934
    • 2011-03-18
    • Shigeru MuramatsuHisashi Takeyama
    • Shigeru MuramatsuHisashi Takeyama
    • G10C3/18
    • G10C3/161G10C3/168G10C3/24
    • A surface 60 of a butt 50 has a flat portion 61 which is situated forward and has a small inclination angle and a slanting pressure receiving portion 62 which is situated backward and has a large inclination angle as areas pushed up by a jack 40. Between the flat portion 61 and the slanting pressure receiving portion 62, an escapement portion 63 having an obtuse angle is formed. The escapement portion 63 is provided to correspond to a position of the jack 40 placed immediately after the start of swinging of the jack 40. The inclination angle of the slanting pressure receiving portion 62 is determined such that in a stage where a key starts returning from a slow full stroke key-depression, a position at which the butt 50 is in contact with the jack 40 is maintained with the butt 50 swinging backward.
    • 踵50的表面60具有位于前方且具有小倾斜角度的平坦部分61和倾斜压力接收部分62,该倾斜角度位于后方并具有大的倾斜角度,作为由千斤顶40向上推的区域。 平坦部分61和倾斜压力接收部分62,形成具有钝角的擒纵部分63。 擒纵部分63被设置成对应于在插座40的摆动开始之后立即放置的千斤顶40的位置。倾斜压力接收部分62的倾斜角度被确定为使得在键开始从 缓慢的全行程按键凹陷,使对接座50与插座40接触的位置被保持,踵50向后摆动。
    • 58. 发明授权
    • Pedal apparatus of electronic musical instrument
    • 电子乐器踏板装置
    • US08143505B2
    • 2012-03-27
    • US12685512
    • 2010-01-11
    • Shigeru Muramatsu
    • Shigeru Muramatsu
    • G10C3/26
    • G10H1/348Y10T74/20528
    • A lever 40 is supported by a lever supporting portion 41. Through a first pivoting member 52, the lever 40 is urged by a reaction force stabilization spring 54, a first spring 55 and a second spring 56. The downward displacement of a second pivoting member 53 is restricted by a fixed supporting member FR. If the urging force of the first spring 55 exceeds the urging force of the second spring 56, the second pivoting member 53 is displaced upward. A contact member which is in contact with the first pivoting member 52 and the second pivoting member 53 to produce friction force is also provided.
    • 杆40由杆支撑部分41支撑。通过第一枢转构件52,杆40被反作用力稳定弹簧54,第一弹簧55和第二弹簧56推动。第二枢转构件 53由固定支撑构件FR限制。 如果第一弹簧55的推压力超过第二弹簧56的作用力,则第二枢转构件53向上移位。 还提供了与第一枢转构件52和第二枢转构件53接触以产生摩擦力的接触构件。