| 摘要 |
PROBLEM TO BE SOLVED: To prevent the occurrence of dislocation during assembly of a division rod, to facilitate assembly without a difficult work, such as matching the planes of a groove and a tip with each other, and to decide the geometric position of a connection part between the hole of a large end part and the piston of a small end part, in a reciprocating compressor used in a household refrigerator. SOLUTION: A large end part 76 is provided with a spherical dent 95 and a guide groove 96 formed in a large end hole 77 and a protrusion part 80. Since, at a small end part, one end of a rod part 81 has a connection part 73 with a piston 10 and the other end has a spherical part 97, simultaneously with insertion of the large end hole 77 into the eccentric part 11 of a crank shaft 7, the spherical dent 95 is simply inserted in the spherical body part 97 without a work like a plane matching work, and a situation that the large end part 76 drops downward and is horizontally dislocated is prevented from occurring, whereby an assembly work is extremely easy to make and a geometric position is also reliably decided.
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