| 摘要 |
PROBLEM TO BE SOLVED: To attain simplification of assembly work or the like of a pump and reduction of cost, by relaxing required strictness in case of setting the dimension in a diametric direction of a wheel in a guide member. SOLUTION: An elastically deformable guide member 61 receiving a roller 43a, 43b moved according to rotation of a pump wheel 42 is arranged to be erected in parallel to a roller shaft 43a1, 43b1. Accordingly, when the wheel is rotated, by moving the roller 43a, 43b to tumble the guide member 61, its rolling in by the roller 43a, 43b is avoided. The roller 43a, 43b is surely guided along a roller support groove 42a, 42b in a direction opposite to the direction of rotation of the wheel by the guide member 61. |
