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EP0456884A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Method of holding objects and apparatus therefor

Assignee: FSK Corp
•
Filing: 1990-10-09
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Granted: —
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Expires: 2010-10-09
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Abstract

Abstract Disclosed is a method of holding an object, which comprises: allowing an object (10) to be held as sucked on a holding surface (3) having a plurality of suction holes (4), each of which having a valve (6) therein which is designed to be operated in accordance with the difference between the pressure in the upper or outer space and that of the lower or inner space demarcated by said valve (6); wherein the valve (6) is opened by utilizing the phenomena that such pressure difference in those suction holes (4) closed by the object (10) becomes smaller, whereas the valves (6) are closed by utilizing the phenomena that such pressure difference in those suction holes (4) which are not closed by the object (10) and remain as open becomes greater, whereby to prevent loss of suction force to be exerted on the object (10), and an apparatus therefor.

Inventors

  • 👤 Hirotsugu Ito

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-07 12:52
CPC Classifications
B; B25; B25B; B25B11/00; B25B11/005

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 143 words
A method of holding an object, which comprises: allowing an object (10) to be held as sucked on a holding surface (3) having a plurality of suction holes (4), each of which having a valve (6) therein which is designed to be operated in accordance with the difference between the pressure in the upper or outer space and that of the lower or inner space demarcated by said valve (6); wherein the valves (6) are opened by utilizing the phenomena that such pressure difference in those suction holes (4) closed by the object (10) becomes smaller, whereas the valves (6) are closed by utilizing the phenomena that such pressure difference in those suction holes (4) which are not closed by the object (10) and remain as open becomes greater, whereby to prevent loss of suction force to be exerted on the object (10).
Claim 2
Independent Claim 134 words
An apparatus for holding an object having a plurality of suction holes and a vacuum chamber, characterized in that said suction holes (4) each have a valve (6) therein which is designed to be operated in accordance with the difference between the pressure in the upper or outer space and that of the lower or inner space demarcated by said valve (6), so that it may be opened by utilizing the phenomena that such pressure difference in those suction holes (4) closed by the object (10) becomes smaller, whereas it may be closed by utilizing the phenomena that such pressure difference in those suction holes (4) which are not closed by the object (10) and remain as open becomes greater, whereby to prevent loss of suction force to be exerted on the object (10).

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