| 摘要 |
<p>PURPOSE:To allow an unskilled person to not only assemble but also replace an engine pack (containing front and rear retainers, a stator, and a rotor having banes). CONSTITUTION:An intake joint 3 is coupled with a guide protruded stripe 34 protruded on the inner periphery of a housing 4, its tip section 13 is brought into contact with a retainer 11b, and the tip section 13 is fastened with a nut member 10 screwed to the housing 4. Multiple first projections made of a hard synthetic resin are formed on the back face of the tip section 13, and multiple second projections 10c are formed on the front face of the nut member 10 corresponding to the first projections 33. A firm coupling relation is formed by the elastic restoring force of the first projections 33 via fastening, looseness is prevented by the hooking effect of the first projections 33 and second projections 10c. When the nut member 10 is rotated by a jig to release fastening, an engine pack 1 can be linearly extracted.</p> |
