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Title:
TRAY PILE-LIFTING APPARATUS
Document Type and Number:
Japanese Patent JP3368808
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To smoothly move a tray up and down thereby placing, taking out electric parts on/from the tray easily and surely, by separating the tray from a member such as a fixed wall part or the like and returning the tray to a constant position surely when the piled tray is freed after positioned in a horizontal direction.
SOLUTION: A tray stage 22 on which trays 1 are piled is supported at a reception bed 23. Ball casters 32 are set at four points of the reception bed 23, thereby forming a horizontal guide means that makes the tray stage 22 movable in a horizontal direction. The tray stage 22 and reception bed 23 are coupled by two coupling rods 33. The coupling rods 33 are provided with springs 34 urging the rods in a vertical state, thereby forming a centering means. When the tray stage 22 frees a press force to reference walls 40, 41 by air cylinders 42, 43, the coupling rods 33 are returned to the vertical state, so that the tray stage 22 is centered.


Inventors:
Masahiko Hara
Application Number:
JP22300997A
Publication Date:
January 20, 2003
Filing Date:
August 06, 1997
Export Citation:
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Assignee:
Hitachi Electronics Engineering Co., Ltd.
International Classes:
G01R31/28; H05K13/02; G01R31/26; (IPC1-7): G01R31/26
Domestic Patent References:
JP7218583A
JP6127684A
Attorney, Agent or Firm:
Shunji Kagei