Handling device
A Bernoulli Effect pick-up device ( 1 ) for the handling of products ( 20 ) comprises a surface ( 4 ) adapted such that gaseous fluid flow across said surface ( 4 ) provides a pick-up force to be generated, by the Bernoulli Effect, in a direction towards said surface ( 4 ), and a conduit ( 2 ) for the supply of the gaseous fluid. The conduit ( 2 ) has an outlet opening ( 5 ) at the surface ( 4 ) and is adapted to supply gaseous fluid in a direction opposed to the pick-up direction. The outlet ( 5 ) of the conduit ( 2 ) is associated with a deflector ( 9 ) for directing gaseous fluid across the surface ( 4 ) and preventing direct impingement of the fluid on a product ( 2 ) that has been picked-up by the device ( 1 ). The product ( 20 ) may for example be a slice of a foodstuff, e.g. tomato or hard-boiled egg.
1. A Bernoulli Effect pick-up device for the handling of products, the device comprising a surface adapted such that gaseous fluid flow across said surface provides a pick-up force to be generated, by the Bernoulli Effect, in a direction towards said surface for picking up a product to be handled by the device, a conduit for the supply of the gaseous fluid, said conduit having an outlet opening at said surface and being adapted to supply gaseous fluid in a direction opposed to the pick-up direction wherein said outlet of the conduit is associated with a deflector for directing gaseous fluid across the surface and preventing direct impingement of the fluid on the product that has been picked-up by the device, and a plurality of elongate ribs located on said surface and inhibiting contact between the product and said surface.
2. A device as claimed in claim 1 , wherein said surface is substantially planar.
3. A device as claimed in claim 1 , wherein said ribs extend radially from said outlet and are angularly spaced relative to each other.
4. A device as claimed in claim 3 , wherein the ribs are equiangularly spaced.
5. A device as claimed in claim 3 , wherein the deflector is mounted on the radially inner ends of said ribs.
6. A device as claimed in claim 1 , further comprising position limiting means for limiting lateral movement of the product with respect to the pick-up device.
7. A device as claimed in claim 6 wherein the position limiting means is of greater depth than the elongate ribs.
8. A device as claimed in claim 7 , wherein the position limiting means is circular and comprises a plurality of circumferentially spaced arcuate projections upstanding from said surface.
9. A robotic handling apparatus comprising a Bernoulli Effect pick-up device as claimed in claim 1 .