公开(公告)号：JPH11257229A

公开(公告)日：1999-09-21

申请号：JP5389798

申请日：1998-03-05

Applicant: MATSUSHITA REFRIGERATION

Inventor： KAWABATA HIROKI ,  KUBOTA TADASHI ,  HAMANE TOKUHITO ,  YAMAMOTO OSAMU ,  SUYAMA SATORU ,  UEDA KENJI ,  NASU HITOSHI

IPC: F04B39/12

Abstract: PROBLEM TO BE SOLVED: To easily automate a shell assembling process by setting both width of a part element for composing a shell and one opening part of the other element to facilitate automatic insertion of the other opening part, and narrowing a clearance between overlapping parts by contracting one opening part from an outer peripheral side after inserting the other opening part. SOLUTION: A diameter of a container opening part 21a for housing a joint in a shell is slightly enlarged, and a clearance is formed between the container opening part 21a and a cover opening part 22a to facilitate automatic insertion of the cover opening part 22a. At the time of assembly, the container opening part 21a is contracted from its outer peripheral side after the cover opening part 22a is automatically inserted into the container opening part 21a by an automatic device, and a size(d) of a clearance 24' between overlapping parts is preferably set to 0.2 mm and less. A clearance is arranged between the cover opening part 22a and the container opening part 21a, and thereby, automatic insertion is facilitated, and the clearance between overlapping parts is uniformly narrowed. It is thus possible to reduce power supply at the time of welding.