| 摘要 |
A machine (50) for spraying building material comprises a hopper unit (1) readily releasably connected to a wheeled base unit (19) by means of handled nuts (22) clamping horizontal, hook-like brackets fixed to the unit (1) against the base unit (19) and by means of a bayonet lock between a paddle within the hopper unit (1) and a shaft which is mounted on the base unit (19) and to which is fixed a feeder disc. A cover (15) is openable to allow access to the feeder disc and comprises an outer panel, an inner panel detachably mounted on the outer panel, and a rubber seal mounted on the inner panel and partly resting against the feeder disc and partly pressed hard against a stationary metal plate and a stationary rubber plate. |
