| 摘要 |
A coffee bean grinder comprises: a body, a burr mounting in the body and including: • a passage via which beans to be ground can pass and • a boss supported within the passage, a complementary pair of complementary burrs or serrated grinding wheels carried by the burr mounting on a burr axis; • an upper and/or outer one of the burrs being journalled in the burr mounting at a determined position along the burr axis and being adapted to be driven in rotation about the burr axis and • a lower and/or inner one of the burrs being restrained from rotational in the mounting and mounted adjustably along the burr axis, a shaft supported irrotationally in the boss for axial movement and integral with or carrying the lower/inner burr and an adjustment member engaged with the shaft for adjusting the position of the shaft and lower/inner burr along the burr axis, the adjustment member crossing the passage. |
