Title:
PIPE COUPLING DEVICE
Document Type and Number:
Japanese Patent JPH1193657
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a pipe coupling device capable of being bent while holding airtightness, capable of preventing breakage and deterioration of parts caused by heat, being miniaturized and reducing costs. SOLUTION: A partition wall 2a on the upstream side and a partition wall 6a on the downstream side are arranged close to each other so as to be bent. A first inner pipe 9 is provided on the sides of upstream pipes 3, 4, and a second inner pipe 10 is provided on the sides of downstream pipes 7, 8. The tips of both inner pipes 9, 10 are lapped on each other, and a bellows 13 is arranged on the outer peripheries of both inner pipes 9, 10. A cover 14 is arranged on the outer periphery of the bellows 13. In the cover 14, a flange 14a, a cover part 14b and a spherical contracted-diameter part 14d are integrally formed. A sliding member 16 is arranged in the spherical contracted-diameter part 14d and held by a holder 15 fixed to the inner pipe 10. The sliding member 16 is pressed in the direction of the spherical contracted-diameter part 14d by an energizing member 18.
Inventors:
UEMATSU TORU
Application Number:
JP25473397A
Publication Date:
April 06, 1999
Filing Date:
September 19, 1997
Export Citation:
Assignee:
SANGO CO LTD
International Classes:
F01N13/08; F16L27/12; F16L39/04; (IPC1-7): F01N7/08; F16L27/12; F16L39/04
Attorney, Agent or Firm:
Hasegawa Yoshimichi
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