| 摘要 |
The present invention relates to a dispensing device (1) for dispensing a predetermined portion of free-flowing material (2) at each time of dispensing, whereby the free-flowing material (2) preferably consists of free-flowing foodstuff, e.g. viscous foodstuff which preferably is to be dispensed on dishes (3), e.g. hamburgers, whereby the dispensing or portioning effect is achieved by means of a liquid or gaseous pressurized medium, preferably compressed air, and whereby the dispensing portion (10) has such a shape and elasticity that said portion, by resuming its normal shape (NF) when the pressure application has ceased, by itself is capable of sucking fresh free-flowing material (2) into the dispensing chamber (5) for subsequent dispensing. In order to make this dispensing device reliable in operation, to give it a long working life and to permit dispensing of exact small amounts also if these contain solid constituents, the wall thickness of central parts of the dispensing portion (10) are increasing successively in outwards direction towards outer parts of said dispensing portion (10), whereby said central parts first start to deform at pressure application on said dispensing portion (10). <IMAGE> |
