ROBOTIC PICK UP AND DELIVERY SYSTEM

WIPO Patent Application WO1999002434

A3

A pick up and delivery system for use with mobile robots (12) which have a body with a horizontal upper surface and at least one vertical side. The robot has at least one shelf (24) each of which contains a stop bar (26) containing a retaining device (30). The system further uses multiple stations (14), each of which contains at least one pallet retaining surface (18) to contain at least two pallets (20). The pallet retaining surfaces are provided with a holding device (28) at the pick up area and a holding device (29) at the delivery area. Pallets are used to retain the items being transferred with each of the pallets having a securing device (46, 48) that interacts with the holding device and retaining device. The strength of the holding device at the pick up area is less than the holding device at the delivery area, with the robot's retaining device having a strength between the strength of the holding devices. The mobile robot picks up a pallet from a first station, and delivers the pallet to a second station.

WO/1994/013431	WORKPIECE HOLDER POSITIONING DEVICE
JPS6352958	PALLET DISPLACEMENT DEVICE
JP2001284435	SUBSTRATE TRANSFER APPARATUS

FELDER ROBIN (US)
TURNER RANDY (US)
HOLMAN WILLIAM (US)
ESTEY CHRIS (US)

PCT/US1998/014041

April 29, 1999

July 07, 1998

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FELDER ROBIN (US)
TURNER RANDY (US)
HOLMAN WILLIAM (US)
ESTEY CHRIS (US)

B23Q7/14; (IPC1-7): B65G67/02

WO1992000912A1

1992-01-23

US4508484A	1985-04-02
US4664590A	1987-05-12
US4698775A	1987-10-06
US4773811A	1988-09-27
US5183368A	1993-02-02
US5202832A	1993-04-13

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