| 摘要 |
PURPOSE: A pulley-coupling structure of a water pump is provided to reduce the progress of work and improve productivity through reduction of the coupling hours and simplification of the structure. CONSTITUTION: A disk-shaped bracket(13) is formed on a shaft(12) of a water pump(11). A pulley(16) is coupled with a side of the bracket by a bolt. In a pulley-coupling structure of the water pump, an inclined coupling protrusion portion(17) is formed on a side of the bracket. An inclined coupling groove portion(14), put on sides with the inclined coupling protrusion portion, is recessed on a side of the pulley and therefore, a special positioning pin is not required in case of coupling the bracket and the pulley. Accordingly, productivity is improved.
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