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US3910621A - Suction devices - Google Patents

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Publication number
US3910621A
US3910621A US43586774A US3910621A US 3910621 A US3910621 A US 3910621A US 43586774 A US43586774 A US 43586774A US 3910621 A US3910621 A US 3910621A
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US
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Grant
Patent type
Prior art keywords
plate
suction
openings
pad
device
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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Inventor
Geoffrey Philip Hillier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Go-Con Concrete Ltd
Original Assignee
Go-Con Concrete Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/02Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by suction means
    • B66C1/0237Multiple lifting units; More than one suction area
    • B66C1/0243Separate cups
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66CCRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/02Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by suction means
    • B66C1/0281Rectangular or square shape

Abstract

A suction device for supporting an article having a flat surface comprises a pad having a surface with a plurality of open ended chambers therein, each chamber being connected by a tube to one end of a respective opening in a plate, suction is applied to the other end of the openings in the plate and an apertured template is associated with the plate in order to close off some of the openings when the effective size of the pad is to be reduced.

Description

United States Patent [191 Hillier Oct. 7, 1975 SUCTION DEVICES [75] Inventor: Geoffrey Philip Hillier,

Borehamwood, England [73] Assignee: Go-Con Concrete Limited, London,

England 22 Filed: Jan. 23, 1974 21 Appl. No.: 435,867

[30] Foreign Application Priority Data Jan. 23, 1973 United Kingdom 3326/73 [52] US. Cl. 294/64 R; 269/21 [51] Int. Cl. B66C 1/02 [58] Field of Search.; 294/64 R, 65; 214/1 BS,

[56] References Cited UNITED STATES PATENTS 3,l26,l92 3/1964 Stein 248/362 3,230,001 1/1966 Hirt 294/64 R 3,379,466 4/1968 Hughes 294/65 3,598,439 8/1971 Dahlquist 294/65 3,652,075 3/1972 Thompson 269/21 Primary Examiner-Evon C. Blunk Assistant Examiner.lohnny D. Cherry Attorney, Agent, or FirmBrisebois & Kruger [5 7] ABSTRACT A suction device for supporting an article having a flat surface comprises a pad having a surface with a plurality of open ended chambers therein, each chamber being connected by a tube to one end of a respective opening in a plate, suction is applied to the other end of the openings in the plate and an apertured template is associated with the plate in order to close off some of the openings when the effective size of the pad is to be reduced.

8 Claims, 1 Drawing Figure US. Patent Oct. 7,1975

1 SUCTION DEVICES This invention relates to a suction device for holding from above articles having a flat face and in particular to a suction device for lifting articles of large surface area, for example uncured concrete panels. Because of the low rigidity and mechanical strength of uncured concrete the effective area of the suction device has to be of comparable size to the face of the article to be held so that the face may be fully supported over sub- .stantially its whole area. If however concrete articles of a number of substantially different sizes are being manufactured at a site, in the past either a corresponding number of suction pads of different sizes have had to be employed to carry the articles in their uncured state from the mould to the curing station or a suction device -of variable effective size has had to be provided.

In British Pat. specification No. 1,249,294 a suction pad is described in which the holding surface of the pad is divided into a plurality of chambers and control means adapted to connect different chambers to a vacuum source is provided thereby to determine which part of the surface is effective at any instant for the application of a holding force on to an article. The control means take the form of displaceable valve members which are controllable by pressure differences acting across the valve member.

According to the present invention a suction device for holding from above an article having a flat face comprises a pad having a surface engageable with a face of the article and made up of a plurality of chambers individually in communication with one side of respective separate openings in a plate means for applying suction to the other side of the openings in said plate and means for fitting a template to said plate to close off selected ones of said openings whereby to change the effective size of the pad for holding the article.

Where articles, such as concrete panels, of two or three different sizes are being produced on a site, it is necessary for the pad to be substantially equal in size to the largest article to be supported and for a template for each of the different smaller sizes of article to be provided. To support a panel, the appropriate template is inserted into engagement with the plate to close off those openings which are not required to have suction applied to them and the suction is then only applied to those openings, and hence to those chambers, which are required to lift the chosen panel.

In order that the invention may be more readily understood it will now be described, by way of example only, with reference to the accompanying drawing which shows diagrammatically a suction device in accordance with one embodiment of the invention.

A suction pad 1 has a flat surface 2 of resilient material of generally rectangular form. The surface has a multiplicity of open-ended cavities or chambers 3 formed in it. The chambers are conveniently arranged in rows and columns. The flat surface is engageable with a flat face of an article to be supported.

A manifold 4 is fitted over a plate 5 and a pipe 6 extends into the manifold. The same number of openings 7 as there are chambers 3 are formed through the plate 5. A plurality of securing pegs 8 project downwardly from the plate 5 into holes 9 formed in a further plate 10. By means of nuts or other fastening means (not shown) the plates 5 and 10 are removably securable together. The upper face of the plate 10 is recessed as shown at 11 and through the base of the recess there are formed the same number of openings 12 as there are chambers 3. Each chamber 3 is connected by a separate pipe 13 to the end of a respective opening 12 which lies on the underside of the plate 10.

A vacuum source (not shown) is connectable to the manifold 4 by way of the pipe 6 to apply suction to the upperside of the openings in the plate 10 by way of the openings in the plate 5. lf all the openings in the plate 10 are uncovered, the suction is applied to each of the chambers in the pad and the pad is capable of supporting an article of the same size as the overall size of the pad.

If however it is desired to support an article which is smaller than the overall size of the pad, then it is only necessary to apply suction to some of the chambers in the pad and to this end an apertured template 14 is employed to block off those openings in the plate 10 which correspond with the chambers in the pad which are not to be used. The template 14 is either clamped between the adjacent faces of plate 5 and'plate 10 or located in the recess 11. Simply by introducing a preprepared template into the manifold the number of chambers in the pad which are used can be quickly altered thereby adjusting the effective overall size of the pad.

When an article is supported below the pad, the pad may be raised or lowered by conventional means (not shown) in order to raise or lower the article.

The apparatus comprising the plates 5 and 10 and the manifold 4 may be secured in fixed relation with respect to the pad 3 so that this apparatus moves with the pad.

I claim:

1. A suction device for holding an article having a flat face, the device comprising a pad having a surface so positioned that it can contact said flat face and with a multiplicity of cavities formed in the surface, a plate having the same number of openings therethrough as there are cavities in the surface, each of said cavities being connected to one end of a separate one of said openings in the plate through passage means having a cross-sectional area smaller than that of said cavity, a template associated with the plate to close off selected ones of said openings, and means for applying suction to the other end of all of the openings in the plate which are not closed off by the template.

2. A suction device as claimed in claim 1 in which the template is insertable between the plate and a further plate having a corresponding number of openings therethrough, the openings in the further plate being aligned with the openings in the first-mentioned plate and the suction is applied to the ends of the openings in the further plate which are away from the firstmentioned plate.

3. A suction device as claimed in claim 2 in which the template is clamped between said plates.

4. A suction device as claimed in claim 3 in which the template is positioned in a recess in one of the plates.

5. A suction device as claimed in claim 2, in which the suction is applied to a manifold fitted over the further plate.

6. A suction device as claimed in claim 1 in which the area of said plate is substantially smaller than that of said pad and the cavities are in communication with the ends of the openings in the plate by way of separate therewith.

tubes. 8. A suction device as claimed in claim 1 in which 7. A suction device as claimed in claim 1 in which said plate is rigid.

means for raising and lowering the pad are associated

Claims (8)

1. A suction device for holding an article having a flat face, the device comprising a pad having a surface so positioned that it can contact said flat face and with a multiplicity of cavities formed in the surface, a plate having the same number of openings therethrough as there are cavities in the surface, each of said cavities being connected to one end of a separate one of said openings in the plate through passage means having a crosssectional area smaller than that of said cavity, a template associated with the plate to close off selected ones of said openings, and means for applying suction to the other end of all of the openings in the plate which are not closed off by the template.
2. A suction device as claimed in claim 1 in which the template is insertable between the plate and a further plate having a corresponding number of openings therethrough, the openings in the further plate being aligned with the openings in the first-mentioned plate and the suction is applied to the ends of the openings in the further plate which are away from the first-mentioned plate.
3. A suction device as claimed in claim 2 in which the template is clamped between said plates.
4. A suction device as claimed in claim 3 in which the template is positioned in a recess in one of the plates.
5. A suction device as claimed in claim 2, in which the suction is applied to a manifold fitted over the further plate.
6. A suction device as claimed in claim 1 in which the area of said plate is substantially smaller than that of said pad and the cavities are in communication with the ends of the openings in the plate by way of separate tubes.
7. A suction device as claimed in claim 1 in which means for raising and lowering the pad are associated therewith.
8. A suction device as claimed in claim 1 in which said plAte is rigid.
US3910621A 1973-01-23 1974-01-23 Suction devices Expired - Lifetime US3910621A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB332673 1973-01-23

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US3910621A true US3910621A (en) 1975-10-07

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US3910621A Expired - Lifetime US3910621A (en) 1973-01-23 1974-01-23 Suction devices

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US (1) US3910621A (en)
JP (1) JPS49104059A (en)

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4060938A (en) * 1976-04-20 1977-12-06 Barron Sr Lee H Glass beveling machine
US4362461A (en) * 1980-05-27 1982-12-07 Ppg Industries, Inc. Selective vacuum lifting device
US4600349A (en) * 1984-02-15 1986-07-15 Karl Mengele & Sohne Apparatus for transporting and positioning sheet metal plates
FR2596313A1 (en) * 1986-03-28 1987-10-02 Gravograph System for fastening, by suction, a plate to be worked upon, especially one to be engraved
US4703966A (en) * 1986-10-27 1987-11-03 Lewecke Maschinenbau Gmbh Vacuum lifting arrangement
US4892296A (en) * 1989-02-27 1990-01-09 Ssmc Inc. Suction table assembly
US4998711A (en) * 1990-02-23 1991-03-12 Borg Donald M Workpiece holder and method of installing a vehicle windshield therewith
US5149162A (en) * 1989-08-08 1992-09-22 Focke & Co. (Gmbh & Co.) Device for conveying layers comprising a multitude of individual objects
WO1997037523A2 (en) * 1996-03-25 1997-10-16 Case Western Reserve University Selective vacuum gripper
US5749614A (en) * 1995-12-04 1998-05-12 Motorola, Inc. Vacuum pickup tool for placing balls in a customized pattern
US5857667A (en) * 1995-10-27 1999-01-12 Samsung Aerospace Industries, Ltd. Vacuum chuck
US5971454A (en) * 1998-01-09 1999-10-26 International Business Machines Corporation Article handler
US6024526A (en) * 1995-10-20 2000-02-15 Aesop, Inc. Integrated prober, handler and tester for semiconductor components
US6139079A (en) * 1997-10-20 2000-10-31 Motorola, Inc. Universal transport apparatus
US6422548B1 (en) * 2000-08-14 2002-07-23 M&R Printing Equipment, Inc. Adjustable zoned vacuum bed
US20040012214A1 (en) * 2000-08-04 2004-01-22 Casarotti Sean A. Detection and handling of semiconductor wafers and wafers-like objects
US20050217192A1 (en) * 2004-03-31 2005-10-06 Moshe Boosy High end mosaic tile production
US20070151673A1 (en) * 2005-12-29 2007-07-05 Lg.Philips Lcd Co., Ltd. Substrate bonding apparatus for liquid crystal display panel
US20080089772A1 (en) * 2006-10-11 2008-04-17 Eads Deutschland Gmbh Suction gripper for handling workpieces
US20110175271A1 (en) * 2010-01-17 2011-07-21 Orbotech Ltd. Vacuum hold-down apparatus
DE102013201248A1 (en) 2013-01-25 2014-07-31 J. Schmalz Gmbh area vacuum
USD798021S1 (en) * 2014-10-13 2017-09-19 J. Schmalz Gmbh Suction head for a material handling lifting device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH075198B2 (en) * 1985-10-14 1995-01-25 富士ゼロックス株式会社 Sheet feeding apparatus such as a copier
JPH0515466Y2 (en) * 1986-05-19 1993-04-23

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3126192A (en) * 1964-03-24 Vacuum holder
US3230001A (en) * 1961-11-22 1966-01-18 Food Systems Inc Article lifting device
US3379466A (en) * 1966-09-07 1968-04-23 Procter & Gamble Pressure-sensitive label receiving and applying station
US3598439A (en) * 1968-12-06 1971-08-10 Rapistan Inc Lifting heads for palletizers
US3652075A (en) * 1969-11-10 1972-03-28 Sheldon Thompson Vacuum chuck and related apparatus and methods

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3126192A (en) * 1964-03-24 Vacuum holder
US3230001A (en) * 1961-11-22 1966-01-18 Food Systems Inc Article lifting device
US3379466A (en) * 1966-09-07 1968-04-23 Procter & Gamble Pressure-sensitive label receiving and applying station
US3598439A (en) * 1968-12-06 1971-08-10 Rapistan Inc Lifting heads for palletizers
US3652075A (en) * 1969-11-10 1972-03-28 Sheldon Thompson Vacuum chuck and related apparatus and methods

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4060938A (en) * 1976-04-20 1977-12-06 Barron Sr Lee H Glass beveling machine
US4362461A (en) * 1980-05-27 1982-12-07 Ppg Industries, Inc. Selective vacuum lifting device
US4600349A (en) * 1984-02-15 1986-07-15 Karl Mengele & Sohne Apparatus for transporting and positioning sheet metal plates
FR2596313A1 (en) * 1986-03-28 1987-10-02 Gravograph System for fastening, by suction, a plate to be worked upon, especially one to be engraved
US4703966A (en) * 1986-10-27 1987-11-03 Lewecke Maschinenbau Gmbh Vacuum lifting arrangement
US4892296A (en) * 1989-02-27 1990-01-09 Ssmc Inc. Suction table assembly
US5149162A (en) * 1989-08-08 1992-09-22 Focke & Co. (Gmbh & Co.) Device for conveying layers comprising a multitude of individual objects
US4998711A (en) * 1990-02-23 1991-03-12 Borg Donald M Workpiece holder and method of installing a vehicle windshield therewith
US6024526A (en) * 1995-10-20 2000-02-15 Aesop, Inc. Integrated prober, handler and tester for semiconductor components
US5857667A (en) * 1995-10-27 1999-01-12 Samsung Aerospace Industries, Ltd. Vacuum chuck
US5749614A (en) * 1995-12-04 1998-05-12 Motorola, Inc. Vacuum pickup tool for placing balls in a customized pattern
WO1997037523A2 (en) * 1996-03-25 1997-10-16 Case Western Reserve University Selective vacuum gripper
US5883357A (en) * 1996-03-25 1999-03-16 Case Western Reserve University Selective vacuum gripper
WO1997037523A3 (en) * 1996-03-25 1997-11-27 Univ Case Western Reserve Selective vacuum gripper
US6139079A (en) * 1997-10-20 2000-10-31 Motorola, Inc. Universal transport apparatus
US5971454A (en) * 1998-01-09 1999-10-26 International Business Machines Corporation Article handler
US7104579B2 (en) 2000-08-04 2006-09-12 Tru-Si Technologies Inc. Detection and handling of semiconductor wafers and wafer-like objects
US20040012214A1 (en) * 2000-08-04 2004-01-22 Casarotti Sean A. Detection and handling of semiconductor wafers and wafers-like objects
US20040150237A1 (en) * 2000-08-04 2004-08-05 Casarotti Sean A. Detection and handling of semiconductor wafers and wafer-like objects
US7144056B2 (en) * 2000-08-04 2006-12-05 Tru-Si Technologies, Inc. Detection and handling of semiconductor wafers and wafers-like objects
US6422548B1 (en) * 2000-08-14 2002-07-23 M&R Printing Equipment, Inc. Adjustable zoned vacuum bed
US20050217192A1 (en) * 2004-03-31 2005-10-06 Moshe Boosy High end mosaic tile production
US20070267137A1 (en) * 2004-03-31 2007-11-22 Moshe Boosy High end mosaic tile production
US20070151673A1 (en) * 2005-12-29 2007-07-05 Lg.Philips Lcd Co., Ltd. Substrate bonding apparatus for liquid crystal display panel
US7839477B2 (en) * 2005-12-29 2010-11-23 Lg Display Co., Ltd. Substrate bonding apparatus for liquid crystal display panel
US20080089772A1 (en) * 2006-10-11 2008-04-17 Eads Deutschland Gmbh Suction gripper for handling workpieces
US20110175271A1 (en) * 2010-01-17 2011-07-21 Orbotech Ltd. Vacuum hold-down apparatus
US8770563B2 (en) 2010-01-17 2014-07-08 Orbotech Ltd. Vacuum hold-down apparatus
DE102013201248A1 (en) 2013-01-25 2014-07-31 J. Schmalz Gmbh area vacuum
US9457478B2 (en) 2013-01-25 2016-10-04 J. Schmalz Gmbh Area vacuum gripper
DE102013201248B4 (en) 2013-01-25 2018-03-22 J. Schmalz Gmbh area vacuum
USD798021S1 (en) * 2014-10-13 2017-09-19 J. Schmalz Gmbh Suction head for a material handling lifting device

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