US 7,344,164 B2 | ||
Pipe connection structure | ||
Nobuo Ichimura, Gunma (Japan); Yoshikazu Takamatsu, Sano (Japan); and Susumu Sato, Gunma (Japan) | ||
Assigned to Calsonic Kansei Corporation, Tokyo (Japan) | ||
Filed on Apr. 08, 2005, as Appl. No. 11/101,642. | ||
Claims priority of application No. 2004-115568 (JP), filed on Apr. 09, 2004. | ||
Prior Publication US 2005/0242575 A1, Nov. 03, 2005 | ||
Int. Cl. F16L 5/00 (2006.01) |
U.S. Cl. 285—203 [285/382; 285/205] | 6 Claims |
1. A pipe connection structure, comprising:
a pipe including a pipe body having first and second terminal ends, an end portion and a collar extending radially outwardly
from the end portion, wherein the collar has an upper surface facing away from the second terminal end of the pipe body and
located at a first distance from the first terminal end and a lower surface facing towards the second terminal end of the
pipe body and located at a second distance from the second terminal end; and
a block including a passage configured to receive the end portion of the pipe; a recess formed in an open end of the passage
for receiving the collar of the pipe; and a peripheral wall of the recess configured to be deformed inwardly and fitted onto
the collar;
wherein the collar includes a circular-arc-shaped largest outside diameter portion located closer to a bottom surface of the
recess than a thickness center line of the collar.
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