Title:
VACUUM PICKUP DEVICE
Document Type and Number:
Japanese Patent JP2625353
Kind Code:
B2
Abstract:
PURPOSE: To provide a lightweight vacuum shuttle device that can rapidly moves and accurately performs positioning by providing a vacuum chamber and a lightweight honeycomb platen in which a cell extends the vacuum chamber to an engagement surface under a platen.
CONSTITUTION: A pickup device 38 is a metal honeycomb structure in which a shelf 62 on the outer periphery sits on a shelf support means 60 and positions under a vacuum chamber 88 so that the pickup device 38 is supported on its periphery. A honeycomb of this vacuum plate pickup device 38 is a panel having a hexagonal cell 64 constituted of stainless steel, and this specific honeycomb structure can have a sealed opening area of about 95%. Weight of such structured vacuum plate pickup device 38 is about 1/6-1/7 is weight of a uniform plate typically structured from ceramic material. Therefore, a force required for starting and stopping a shuttle operation of a pickup assembly 16 becomes smaller.
Inventors:
George Earl Classen
James Eich Schwartz
Thomas L. Waterloo
Richard Buoy Posny
James Eich Schwartz
Thomas L. Waterloo
Richard Buoy Posny
Application Number:
JP21767993A
Publication Date:
July 02, 1997
Filing Date:
September 01, 1993
Export Citation:
Assignee:
PPG Industries, Inc.
International Classes:
B25J15/06; B65G49/06; C03B35/14; (IPC1-7): B25J15/06; B65G49/06
Domestic Patent References:
| JP386488A | ||||
| JP3232640A |
Attorney, Agent or Firm:
Akira Asamura (3 outside)