公开(公告)号：US5582054A

公开(公告)日：1996-12-10

申请号：US348988

申请日：1994-11-28

申请人： Makoto Yoshino ,  Toshiya Etou ,  Masujirou Takawaki ,  Masaru Ito

发明人： Makoto Yoshino ,  Toshiya Etou ,  Masujirou Takawaki ,  Masaru Ito

IPC分类号： F16L19/03 ,  B21D17/02 ,  B21D51/16 ,  B21D41/00

CPC分类号： B21D17/02

摘要： A method that produces an inexpensive and high-quality male side pipe by forming a seal groove for holding an O-ring only by means of press machining is disclosed. A male side pipe is pressed to form an expanded part at an intermediate part thereof. This expanded part is pressed to form a bulge part. Furthermore, the portion of the male side pipe from a tip end to an intermediate part of the bulge part is contracted to form a seal groove side face and a seal groove bottom face at the side of the bulge part. In addition, the portion, of the male side pipe from the tip end to the point S is pressed for thinning to facilitate the machining on male side pipe. Then, the thinned portion is widened to form a seal groove side face at the side of the tip end. By forming the seal groove side face roughly perpendicular to the axial direction of the male side pipe during these processes, the askew assembly or slanting of the O-ring can be prevented.

摘要翻译： 公开了一种通过仅通过冲压加工形成用于保持O形环的密封槽来生产便宜且高质量的阳侧管的方法。 在其中间部分压入阳侧管以形成扩张部。 这个膨胀的部分被按压形成凸起部分。 此外，阳侧配管从凸出部的顶端到中间部的部分收缩，以在凸部的一侧形成密封槽侧面和密封槽底面。 此外，从顶端到点S的阳侧管的部分被挤压以减薄以便于在公侧管上的机械加工。 然后，变薄部分变宽，形成在前端侧的密封槽侧面。 通过在这些处理中形成大致垂直于阳侧管的轴向的密封槽侧面，可以防止O形圈的倾斜组件或倾斜。