公开(公告)号：US07490872B2

公开(公告)日：2009-02-17

申请号：US10532312

申请日：2003-10-22

申请人： Toshio Yamamoto ,  Mitsuru Marukawa ,  Yoshimasa Yoshimoto ,  Shozo Iizuka ,  Takashi Hara

发明人： Toshio Yamamoto ,  Mitsuru Marukawa ,  Yoshimasa Yoshimoto ,  Shozo Iizuka ,  Takashi Hara

IPC分类号： F16L25/00

CPC分类号： F24F13/0209 ,  B21D39/03 ,  B21D51/2653 ,  F16L9/003 ,  F24F13/0245 ,  F24F13/0272

摘要： A cornerplate-less duct includes plate members joined to each other at side end portions by a seam joint to form a tubular duct having a rectangular cross-section. Two end portions of a plate are bent perpendicular to a longitudinal direction of the plate to form flange forming portions. Corner forming portions protrude from side ends of the flange forming portions in a width direction to form corner portions at the end portions of the duct. In an expanded shape of the plate, a cut portion is provided close to a longitudinal center of the plate member such that the cut portion extends in a width direction of the plate member and has a depth substantially equal to an overlapping portion of the corner forming portion.

摘要翻译： 无角板导管包括通过接缝接合在侧端部处彼此连接的板构件，以形成具有矩形横截面的管状管道。 板的两个端部垂直于板的纵向弯曲以形成凸缘形成部分。 角部形成部从凸缘形成部的宽度方向的侧端突出，在管的端部形成角部。 在板的扩展形状中，切割部分靠近板构件的纵向中心设置，使得切割部分在板构件的宽度方向上延伸并且具有基本上等于角部形成的重叠部分的深度 一部分。

公开(公告)号：US20060048835A1

公开(公告)日：2006-03-09

申请号：US10532312

申请日：2003-10-22

申请人： Toshio Yamamoto ,  Mitsuru Marukawa ,  Yoshimasa Yoshimoto ,  Shozo Iizuka

发明人： Toshio Yamamoto ,  Mitsuru Marukawa ,  Yoshimasa Yoshimoto ,  Shozo Iizuka

IPC分类号： F16L9/00

CPC分类号： F24F13/0209 ,  B21D39/03 ,  B21D51/2653 ,  F16L9/003 ,  F24F13/0245 ,  F24F13/0272

摘要： This invention is aimed at providing a cornerplate-less duct having a rational construction, which can significantly reduce the number of parts by effectively utilizing scraps conventionally discarded. Plate members are joined to each other at side end portions by a seam joint structure to form a tubular duct 10 having a rectangular cross-section. A starting end portion and a terminal end portion of a plate are bent in a direction substantially perpendicular to a longitudinal direction Za of the plate to form flange forming portions 3 integral with the plate. Corner forming portions 4 are formed integrally to protrude from side ends of the flange forming portions in a width direction to form corner portions at the starting and terminal end portions of the duct. In an expanded shape of plate 1A or 1B, a cut portion 2 is provided closer to a center in the longitudinal direction Za than a starting end 1s or a terminal end 1e of the plate member such that the cut portion 2 extends in a width direction Ya of the plate member and has a depth substantially equal to an overlapping portion W1 of the corner forming portion 4.

摘要翻译： 本发明的目的在于提供一种具有合理结构的无角板管道，其可以通过有效地利用传统废弃的废料来显着地减少零件数量。 板构件通过接缝结构在侧端部处彼此接合以形成具有矩形横截面的管状管道10。 板的起始端部和末端部在与板的长度方向大致正交的方向上弯曲，形成与板成一体的凸缘形成部3。 一体地形成角部成形部4，从宽度方向的凸缘形成部的侧端突出，在管的起始端和末端部形成角部。 在板1A或1B的扩展形状中，切割部分2设置成比板构件的起始端1s或终端1e更靠近纵向方向Za的中心，使得切割部分2延伸 在板构件的宽度方向Ya上具有与角部形成部4的重叠部分W 1大致相等的深度。