Title:
NEGATIVE PRESSURE ACCUMULATOR
Document Type and Number:
Japanese Patent JPS5776301
Kind Code:
A
Abstract:
PURPOSE:To obtain an adsorption unit without suction piping by connecting a space inside a bellows to a cradle for vacuum sticking and producing a vacuum in the space by varying the space volume in order to stick an object to the cradle. CONSTITUTION:After a rod 9 is pushed by an end 1a of a bellows 1 to compress the bellows 1, reducing the volume of its internal space S, an object A to be stuck is placed on a cradle 8 and the rod 9 is detached from the bellows 1, then te bellows 1 expands owing to the spring force of a spring 4. After the bellows 1 ceases to expand, the spring 4 balances itself with the pressing force imposed to the bellows 1, keeping th object A stuck thereto. Since this contrivance does not require any suction pipe and is appplicable to any posture, it can be used on an endless conveyor which does not accept piping.
Inventors:
SUMII SEIJI
Application Number:
JP15415580A
Publication Date:
May 13, 1982
Filing Date:
October 31, 1980
Export Citation:
Assignee:
NIPPON ELECTRIC CO
International Classes:
B25B11/00; F15B1/02; F15B1/04; F15B1/10; (IPC1-7): F15B1/02
Domestic Patent References:
| JP52095198B | ||||
| JPS505434U | 1975-01-21 |