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    • 1. 发明授权
    • Electromagnetic clutch
    • 电磁离合器
    • US4295553A
    • 1981-10-20
    • US109259
    • 1980-01-03
    • Kosaku SayoAtsushi SuginumaHideo TatsumiHisanobu Kanamaru
    • Kosaku SayoAtsushi SuginumaHideo TatsumiHisanobu Kanamaru
    • F16D27/10F16D27/112H01F7/16
    • F16D27/112F16D2027/008F16D2250/00Y10T29/49938
    • An electromagnetic clutch having an energizing device including a cylindrical yoke assembly composed of a yoke member and a yoke holder, and a winding housed in the yoke assembly. The yoke member has an outer cylindrical wall and an inner cylindrical wall constituting a double wall cylindrical structure, and a doughnut-shaped bottom wall connecting the outer and inner cylindrical walls together. The outer cylindrical wall is tapering in going from the bottom wall toward the upper end, and the inner cylindrical wall has a constant thickness lower portion of a predetermined height contiguous with the bottom wall and a tapering portion contiguous with the constant thickness lower portion and having its thickness successively reduced in going toward the upper end. The inner cylindrical wall has an annular groove formed on its inner circumferential surface in its constant thickness lower portion. When the yoke member and the yoke holder is assembled, the yoke holder is force fitted to the yoke member and a clamping force is exerted on the yoke assembly in such a manner that the latter is plastically deformed to have its material flow into the annular groove of the yoke member to form a joint, whereby the yoke member can be firmly fitted to the yoke holder.
    • 一种电磁离合器,具有励磁装置,该励磁装置包括由轭构件和轭架构成的圆柱形轭组件,以及容纳在所述轭组件中的绕组。 轭构件具有外圆柱形壁和构成双壁圆柱形结构的内圆柱形壁和连接外壁和内圆柱壁的环形底壁。 外圆筒壁从底壁朝向上端逐渐变细,内筒壁具有与底壁相邻的预定高度的恒定厚度下部和与该恒定厚度下部相邻的锥形部,并且具有 其厚度依次减小到上端。 内圆筒壁的内周面形成有环状的槽,其内径为恒定厚度的下部。 当轭构件和轭架被组装时,轭保持器被压配合到轭构件,并且夹紧力以这样的方式施加到轭组件上,使得后者被塑性变形以使其材料流入环形槽 的轭构件以形成接头,由此轭构件可以牢固地装配到轭架上。
    • 7. 发明授权
    • Method for manufacturing a unit piece of a V pulley
    • 用于制造V型皮带轮单元件的方法
    • US3933023A
    • 1976-01-20
    • US553212
    • 1975-02-26
    • Hideo TatsumiTomoyoshi HirazukaHisanobu Kanamaru
    • Hideo TatsumiTomoyoshi HirazukaHisanobu Kanamaru
    • F16H55/49B21J5/02B21K1/42
    • B21K1/42Y10T29/49456
    • A method for manufacturing a unit piece for a `V` pulley of the type in which a pair of unit pieces of the same configuration are assembled in back-to-back relation to each other into a single complete pulley, said unit piece having a central flat portion and a circumferential `V` groove forming portion continuous with the flat portion, characterized by the steps of preparing a forging stock of a disk form of which the outer diameter is equal to the outer diameter D.sub.1 of said pulley unit peice and the thickness is equal to the thickness T of the flat portion of said pulley unit piece; and cold-forging said forging stock for deforming an outer circumferential portion thereof so that the thickness of the portion is gradually reduced radially outwardly to define a cylindrical portion of height L as well as an outermost circumference of thickness T.sub.1 and n innermost circumference of thickness T.sub.2 (T.sub.1
    • 一种用于制造其中一对相同构造的单元件彼此背靠背地组装成单个整个滑轮的类型的“V”滑轮单元件的方法,所述单元件具有 中心平坦部分和与该平坦部分连续的周向“V”槽形成部分,其特征在于,准备一个盘形的锻造坯料,其外径等于所述滑轮单元皮的外径D1和 厚度等于所述滑轮单元件的平坦部分的厚度T; 冷锻所述锻造坯料使其外圆周部分变形,使得该部分的厚度径向向外逐渐减小,以限定高度L的圆柱形部分以及厚度T1的最外周和厚度T2的最内圆周 (T1