公开(公告)号：US20030038012A1

公开(公告)日：2003-02-27

申请号：US10226311

申请日：2002-08-23

Applicant: KABUSHIKI KAISHA F.C.C.

Inventor： Kouichi Kumagai ,  Takashi Kodama

IPC: F16D013/52 ,  F16D013/58

CPC classification number: F16D13/62

Abstract: A clutch outer has a cylindrical portion, and slits defined in the cylindrical portion at a plurality of points circumferentially equally spaced apart from one another to extend in an axial direction of the cylindrical portion so that engagement claws on outer peripheries of a plurality of friction plates are slidably engaged into the slits. Each of the slits includes a wide portion which is defined on the side of an inner periphery of the cylindrical portion and into which the engagement claws are engaged, and a narrow portion defined on the side of an outer periphery of the cylindrical portion with a width in a circumferential direction of the cylindrical portion being smaller than that of the wide portion. The wide portion and the narrow portion are connected to each other through a step facing a radially inward direction of the cylindrical portion. A draft for the wide portion during die-casting is set at a value smaller than a draft for the narrow portion, and a die-parting face in the die-casting is established on the side of the outer periphery of the cylindrical portion. Thus, it is possible to prevent a galling in a product and a striking sound as well as to minimize the number of the slits.

Abstract translation: 离合器外部具有圆筒部，狭缝部分在圆周方向上彼此间隔开的多个点处沿着圆筒部的轴向延伸，使得多个摩擦片的外周上的接合爪 可滑动地接合到狭缝中。 每个狭缝包括限定在圆柱形部分的内周侧并且接合爪接合的宽部分和限定在圆柱形部分的外周侧上的宽度，宽度 在圆筒部的周向小于宽部的周向。 宽部分和窄部分通过面向圆柱形部分的径向向内的方向彼此连接。 在压铸过程中，宽幅部分的牵伸力被设定为比狭窄部分的牵伸力小的值，并且在圆筒部分的外周侧形成压铸件的分模面。 因此，可以防止产品中的磨损和醒目的声音以及使狭缝的数量最小化。