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Publication numberUS3223442 A
Publication typeGrant
Publication dateDec 14, 1965
Filing dateApr 24, 1964
Priority dateMay 3, 1963
Publication numberUS 3223442 A, US 3223442A, US-A-3223442, US3223442 A, US3223442A
InventorsFawdry Charles Frederick, White Ernest George
Original AssigneeHeadley Townsend Backhouse
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Suction grippers
US 3223442 A
Images(1)
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Description  (OCR text may contain errors)

1965 c. F. FAWDRY ETAL 3,223,442

SUCTION GRIPPERS Filed April 24, 1964 United States Patent 3,223,442 SUCTION GRIPPERS Charles Frederick Fawdry and Ernest George White, both of London, England, assignors to Headley Townsend Backhouse, Lansanne, Switzerland Filed Apr. 24, 1964, Ser. No. 362,508 Claims priority, application Great Britain, May 3, 1963, 17,612 2 Claims. (Cl. 294-64) The invention relates to suction grippers of the kind, hereafter called of the kind described, comprising a mouthpiece of resilient material (e.g. rubber) attached to a rigid carrier member, the mouthpiece having an open mouth for suction-gripping engagement with a surface such as a face of a sheet of paper or other sheet material and a throughway for suction leading to the mouth and open to a port in the carrier member for connection to a source of suction.

The invention provides a suction gripper of the kind described characterised in that the resilient mouthpiece has a ball and socket pivotal attachment to the carrier member whereby the orientation of the mouth may be adjusted.

There may be included means for holding the mouthpiece on the carrier member in its position of adjustment.

In a preferred form of the invention the mouthpiece has a part-spherical socket behind the mouth with an opening (e.g. facing in a direction opposite to that of the mouth) and the carrier member has a part-spherical ball which engages in the socket and is resiliently gripped thereby, the .ball being supported by a neck which passes through the opening. With this form of the invention, the holding means aforesaid may comprise an adjustable clamp or clip around the socket portion of the mouthpiece and operable to contract the socket into gripping engagement with the ball. Alternatively there may be one or more openings for suction in the surface of the ball whereby the socket is draWn into gripping engagement with the ball. The suction may operate to deform the socket locally to draw portions of it into the openings and so to provide a measure of interlock. In use the suction supply may be the same as that to the mouth and be effective only when the mouth is closed by a sheet or other surface. However, as this is the time when resistance to movement of the mouthpiece is most desired, the result is satisfactory in practice.

Two specific embodiments of suction grippers according to the invention will now be described by way of example and with reference to the accompanying drawings, in which:

FIGURE 1 is a section through one form of retrieving gripper, and

FIGURE 2 is a section through another form of retrieving gripper.

In the example shown in FIGURE 1 there is a mouthpiece of soft rubber, the gripper mouth being at 11. The mouthpiece is attached to a carrier member 12, which,

in this case, is a piston working in a cylinder in a manner well known per se for grippers of the retrieving type. The attachment of the mouthpiece to the member 12 consists of a ball 14 on the carrier working in a part-spherical socket 15 in the mouthpiece. There is, in the ball, a throughway 16 for suction which leads to the mouth 11. Around the mouthpiece there is a split clip or clamp ring 17 which fits in an external groove in the mouthpiece and can .be contracted by a screw 18 to grip the mouthpiece on to the ball and so to hold the mouthpiece in any desired position of adjustment. The inside of the clip is of spherical form to conform with the ball.

The construction shown in FIGURE 2 is similar to that just described except that the clip is omit-ted and, instead there are two or, if desired three, diametrical holes in the ball. The socket of the mouthpiece is arranged to grip the ball by the natural resiliency of the rubber. When suction is applied and when the mouth 11 is closed by a sheet, the suction acts on the mouthpiece through the holes 20 and serves to hold the mouthpiece against movement on the ball.

We claim:

1. A suction gripper consisting of a mouthpiece of resilient material having an open mouth, a part-spherical socket and a throughway for suction leading from the socket to the mouth, in combination with a carrier member having a ball received within the said socket and resiliently gripped thereby forming a ball and socket pivotal attachment of the mouthpiece to the carrier member and also having a passageway for suction with a port open to the throughway and With means for increasing the grip of the mouthpiece on the carrier member, which means comprises at least one opening in the surface of the ball opposed to the socket said opening being connected to the suction passageway whereby the suction is operative to draw the socket into gripping engagement with the ball.

2. A suction gripper consisting of a mouthpiece of resilient material adjustably attached to a rigid carrier member by a ball and socket pivotal attachment, the mouthpiece having a part-spherical socket behind the mouth with an opening and the carrier member having a partspherical ball which engages in the socket, the ball being supported by a neck which passes through the opening, and a throughway for suction leading to the mouth and open to a port in the carrier member, there being at least one opening in the surface of the ball opposed to the socket said opening being connected to the suction passageway whereby the suction is operative to draw the socket into gripping engagement with the ball.

References Cited by the Examiner UNITED STATES PATENTS GERALD M. FORLENZA, Primary Examiner,

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US947751 *Jun 28, 1909Jan 25, 1910Scovill Manufacturing CoUniversal joint.
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Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3423119 *Jun 6, 1966Jan 21, 1969Zimmerman D W MfgApparatus for handling loads
US4129328 *Jun 20, 1977Dec 12, 1978Littell Edmund RPlate handling apparatus with load deflection compensation
US4720130 *Jan 12, 1987Jan 19, 1988Sharp Kabushiki KaishaIndustrial robot hand with position sensor
US5172922 *Apr 25, 1991Dec 22, 1992Digital Equipment CorporationSelf aligning vacuum nozzle
US5211435 *Oct 2, 1991May 18, 1993Smc Kabushiki KaishaApparatus for holding by suction and conveying
US5688008 *Jan 25, 1996Nov 18, 1997Ferag AgSuction device
US5783033 *Feb 26, 1997Jul 21, 1998Grossman; Stanley I.Labeling device
US5925200 *Mar 5, 1998Jul 20, 1999Rocky Mountain Traders, Ltd.Labeling method
US5958177 *Apr 3, 1998Sep 28, 1999Claussnitzer; WernerLabelling device
US6149763 *May 20, 1999Nov 21, 2000Rocky Mountain Traders, Ltd.Labeling device and label
US6564844Nov 20, 2000May 20, 2003Rocky Mountain Traders, Inc.Labeling device and label
US6648974 *Dec 3, 1999Nov 18, 2003Lpe SpaDevice and method for handling substrates by means of a self-leveling vacuum system in epitaxial induction
US6863323 *Jan 29, 2002Mar 8, 2005AmgModular gripper
US7281739Sep 1, 2004Oct 16, 2007Delaware Capital Formation, Inc.Adjustable mount for vacuum cup with offset mounting post and swivel
US7309089Jan 12, 2005Dec 18, 2007Delaware Capital Formation, Inc.Vacuum cup
US7540309May 9, 2006Jun 2, 2009Delaware Capital Formation, Inc.Auto-release vacuum device
US7681603May 8, 2009Mar 23, 2010Deleware Capital Formation, Inc.Auto-release vacuum device
US7712807Feb 15, 2007May 11, 2010Delaware Capital Formation, Inc.Vacuum cup with relief port and method of moving and releasing an object
US7798546Nov 9, 2006Sep 21, 2010Delaware Capital Formation, Inc.Material handling device with level indicator
US7950422Feb 19, 2010May 31, 2011Delaware Capital Formations, Inc.Auto-release vacuum device
US8201589May 26, 2011Jun 19, 2012Delaware Capital Formation, Inc.Auto-release vacuum device
US8267367Mar 16, 2009Sep 18, 2012Korea Pneumatic System Co., Ltd.Vacuum pad device
US8479781May 15, 2012Jul 9, 2013Delaware Capital Formation, Inc.Auto-release vacuum device
DE3728286A1 *Aug 25, 1987Mar 16, 1989Flachglas AgSuction transport apparatus
EP0212365A2 *Jul 30, 1986Mar 4, 1987M.A.N.-ROLAND Druckmaschinen AktiengesellschaftGripper arrangement for sheet-fed rotary printing machines
WO1989000965A1 *Jun 23, 1988Feb 9, 1989Manfred KleinLifting suction device for a transport system
Classifications
U.S. Classification294/189
International ClassificationB65G47/91, B65H3/08, B66C1/02, B65H5/14, B65G49/06
Cooperative ClassificationB65H5/14, B65H3/0883, B65G2249/045, B66C1/0212, B65G49/061, B65G47/91, B66C1/0293
European ClassificationB66C1/02U, B66C1/02C, B66C1/02, B65G49/06B, B65H5/14, B65H3/08B6, B65G47/91