US3902750A - Device for gripping pieces of cloth fabric or the like - Google Patents

Device for gripping pieces of cloth fabric or the like Download PDF

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Publication number
US3902750A
US3902750A US431701A US43170174A US3902750A US 3902750 A US3902750 A US 3902750A US 431701 A US431701 A US 431701A US 43170174 A US43170174 A US 43170174A US 3902750 A US3902750 A US 3902750A
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United States
Prior art keywords
jaw
cloth
teeth
elements
jaw elements
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Expired - Lifetime
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US431701A
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English (en)
Inventor
Jean Claude Roitel
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.)
CENTRE D'ETUDES TECHNIQUES DES INDUSTRIES DE L'HABILLMENT
CTRE ETUD TECH IND HABILLEMENT
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CTRE ETUD TECH IND HABILLEMENT
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Filing date
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Application filed by CTRE ETUD TECH IND HABILLEMENT filed Critical CTRE ETUD TECH IND HABILLEMENT
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Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/22—Separating articles from piles by needles or the like engaging the articles

Definitions

  • a device for gripping a piece of cloth or fabric partic- I ularly the top piece of cloth of a pile of pieces of cloth I or the like flexible material in sheets characterised in that it comprises agripper having two flat tapered jaws forming between them an acute dihedral angle, one of which jaws terminates in a pointed tooth situated opposite the gap between two adjacent pointed teeth terminating the other jaw, the said teeth beeing 'of general triangular configuration and their edges being bevelled towards the interior of the combination I formed by the two jaws.
  • devices which consist essentially of suction nozzles, but their effectiveness is not absolute and the separation of the top piece of cloth is not done without difficulty.
  • Another known device comprises a cylindrical tubular member connected to a source of low pressure and having its end provided with teeth, gripping being effected by a sudden pivotal movement of small amplitude of the toothed cylinder, but gripping is again uncertain. 7
  • the device according to the invention consists of a gripper having two flat tapered jaws forming between them an acute dihedral angle, one of which jaws terminates in a pointed tooth situated opposite the gap between two adjacent pointed teeth terminating the other jaw, the said teeth being of general triangular configuration and their edges being bevelled towards the interior of the combination formed by the two jaws.
  • Such a device has a low cost price and a small bulk. It is easy to operate and may be manipulated by hand, but it is advantageously incorporated in a machine having an automatic cycle because it is particularly very sure in operation. It is suitable for dealing with very different cloths or like materials of close or open texture and whose surface condition is even slippery, sized or finished, for example.
  • FIG. 1 is a side view of the device.
  • FIG. 2 is a corresponding front view.
  • FIG. 3 is a side view on a larger scale of the two jaws of the tool.
  • FIGS. 4 and 5 are,,r espectively, corresponding internal front views of the two jaws
  • FIG. 6 is aside view of both of the two jaws clamped together, I FIG. 7 shows on a still larger scale a section along the line VII'-VII of FIG. .6 with a thread assumed to be gripped, and
  • FIGS. 8 and 9 illustrate in side view the gripping'of a thread.
  • the device shown in FIGS. 1 and 2 is intended for seizing the top piece of cloth or fabric from a pile 2 of pieces of cloth of any nature, woven or non-woven or even a pile of flexible material in sheets, for example, sheets of plastics material.
  • the device comprises a gripper 3 having two jaws 4, Srespectively secured to the fixed armature 6 and the movable armature 7 of an electromagnet, denoted in its entirety by 8 and carried, for example, by an arm 9 which may belong, inter alia, to an automatic machine.
  • the two jaws 4, 5 are tapered and of flat section; they form between them an acute dihedral angle A (FIG. 3), and one of them, for example the jaw 5, terminates in a single pointed tooth 11 (see also FIG. 4), while the other jaw 4 terminates in two adjacent pointed teeth 12, 13 (FIG. 5), between which the single tooth ll of the jaw 5 comes into position when the gripper is closed, as shown in FIGS. 6 and 7.
  • the teeth 11, 12, 13 are of general triangular configuration and their edges are bevelled towards the interior of combination formed by the two jaws, as shown at l4, 15 for the tooth 11 (FIG. 4) and at 16, 17 for the two teeth 12, 13 (FIG. 5).
  • the movable armature 7 of the electromagnet 8 is provided with two apertures 7A which are engaged on two studs 6A of the fixed armature of the electromagnet 8.
  • This arrangement provides for possible pivoting movement of the movable armature 7 with respect to the fixed armature 6.
  • the movable armature 7 is urged for pivoting movement in the direction fl which moves jaw 5 away from jaw 4 by a spring 10, one end of which is attached to a lug 7B of the movable armature 7 while the other end is attached to a further lug 6B of the fixed armature 6.
  • the amplitude of such pivoting movement in the direction of the arrow fl (FIG.
  • the apparatus is thrust in the open position in the direction of the arrow f (FIG. I) perpendicularly to the surface of the pile 2 of pieces of cloth or fabric, the teeth of the two jaws entering the top piece 1 of the pile of cloth as shown in FIG. 8.
  • the gripper is then closed and there is practically always at least one thread, such as 21, imprisoned between the teeth of the two jaws and which, consequently, is raised slightly between the latter during their closure, and at the same time assumes the undulated configuration shown in FIG. 7 under the effect of the pressure to which it is subjected by the single tooth ll of the jaw 5 engaged between the two teeth 12, 13 of jaw 4.
  • the thread is not only supported by the ends of the teeth of the two jaws which cross one another, but in addition is clamped between the bevelled face 14 of the single tooth 11 and the bevelled face 17 of the tooth 13 of the other jaw, as well as between the bevel 15 of the single tooth and the bevel 16 of the other tooth 12 of the jaw with two teeth.
  • the thread 21 is therefore very effectively seized by the gripper 3 such that the piece of cloth 1 is lifted off the pile 2, whereupon it can be led to any desired place for undergoing the required treatment.
  • the apparatus may be used equally well for seizing a piece of cloth already isolated.
  • a device for gripping a piece of cloth made of threads comprising first and second jaw elements each tapering toward one end, said first element terminating in a triangula'rly pointed tooth, said second element terminating in two spaced triangularly pointed teeth defining therebetween a gap into which said generally triangular pointed tooth of said first element is adapted to fit snugly, and means supporting said jaw elements so that they incline toward one another and toward said tapered ends and so that said tapered ends can be 4 brought together with said tooth on said first element entering said gap between said teeth on said second element, the edges of each of said teeth on each one of said first and second elements being bevelled toward each other, said supporting means comprises an electromagnet having a fixed armature and a movable armature, said fixed armature being connected to said second jaw element, said movable armature being connected to said first jaw element, whereby upon thrusting said device toward a piece of cloth with said tapered jaw elements foremost and separate from each other, activating said electromagnet to bring said tape
  • a device as claimed in claim, 1 wherein said supporting means provide for one of said jaw elements pivoting with respect to the other of said elements.
  • a device according to claim 1 including means resiliently resisting movement of said jaw elements toward one another.
US431701A 1973-01-16 1974-01-08 Device for gripping pieces of cloth fabric or the like Expired - Lifetime US3902750A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7301399A FR2214292A5 (de) 1973-01-16 1973-01-16

Publications (1)

Publication Number Publication Date
US3902750A true US3902750A (en) 1975-09-02

Family

ID=9113356

Family Applications (1)

Application Number Title Priority Date Filing Date
US431701A Expired - Lifetime US3902750A (en) 1973-01-16 1974-01-08 Device for gripping pieces of cloth fabric or the like

Country Status (6)

Country Link
US (1) US3902750A (de)
JP (1) JPS50145691A (de)
DE (1) DE2401737C3 (de)
FR (1) FR2214292A5 (de)
GB (1) GB1418281A (de)
IT (1) IT1003329B (de)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4372548A (en) * 1980-03-28 1983-02-08 Veb Kombinat Textima Device for separating flexible planar material
US4605216A (en) * 1984-07-24 1986-08-12 General Motors Corporation Material pick-up mechanism
US4641827A (en) * 1983-06-02 1987-02-10 Richard R. Walton Fabric pickup and the like
US4645193A (en) * 1984-05-30 1987-02-24 Richard R. Walton Fabric pickup and the like
US4787805A (en) * 1986-02-28 1988-11-29 Schering Aktiengesellschaft Device for the insertion into and removal from a suspended frame of parts being galvanized
US4822020A (en) * 1986-02-24 1989-04-18 Alain Rouleau Advanced apparatus for gripping flexible, and in particular textile, layers
US5178262A (en) * 1989-11-08 1993-01-12 Grapha-Holding Ag Sheet transporting tongs for use in chain conveyors and the like
US5248177A (en) * 1992-01-30 1993-09-28 Wrangler Fabric pickup device
US5653431A (en) * 1994-01-19 1997-08-05 Design Technology Corporation Fabric piece handling system
US20160122055A1 (en) * 2014-11-05 2016-05-05 Anhui Yongcheng Electronic And Mechanical Technology Co., Ltd. Biomimetic bag opening device for automatic filling line
US11198577B2 (en) 2018-05-04 2021-12-14 Under Armour, Inc. System and method for picking single sheet of material for further processing

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE883235A (nl) * 1980-05-12 1980-11-12 Byttebier Gaspar A H Werkwijze en inrichting voor het opnemen van soepele vellen van een stapel
IT1138809B (it) * 1981-06-23 1986-09-17 Rockwell Rimoldi Spa Gruppo di prelievo con almeno una testina di presa in prelevatori di pezzi impilati
FR2561631B1 (fr) * 1984-03-26 1986-08-29 Rouleau Patrick Procede et dispositif de prehension de couches souples en particulier textiles et machine pour la prehension et le transfert desdites couches
US5190275A (en) * 1989-09-11 1993-03-02 Union Special Corporation Sleeve loader
JPH07268709A (ja) * 1994-03-23 1995-10-17 Kinzoku Kogyo Kenkyu Hatten Chushin 布グリッパー
DE102012104276A1 (de) * 2012-05-16 2013-12-05 Benteler Automobiltechnik Gmbh Vorrichtung und Verfahren zur Aufnahme und Transport von einzelnen Textilbahnen oder Stapeln von Textilbahnen

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2403216A (en) * 1943-12-13 1946-07-02 Gottlieb Elias Remover for sweep wheels or the like for repairing watches
US3218099A (en) * 1963-12-05 1965-11-16 Stamborski Paul Weed puller
US3504407A (en) * 1967-09-29 1970-04-07 Bendix Corp Underwater release mechanism
US3588091A (en) * 1968-11-08 1971-06-28 Stone Mfg Co Apparatus and method for picking up and transporting cloth pieces from a stack
US3588092A (en) * 1969-06-02 1971-06-28 Singer Co Method and apparatus for removing a single ply of fabric
US3712611A (en) * 1970-03-17 1973-01-23 Tech Des Ind De L Habillement Suction gripping apparatus
US3747919A (en) * 1972-06-06 1973-07-24 Usm Corp Adjustable work pick-up device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2403216A (en) * 1943-12-13 1946-07-02 Gottlieb Elias Remover for sweep wheels or the like for repairing watches
US3218099A (en) * 1963-12-05 1965-11-16 Stamborski Paul Weed puller
US3504407A (en) * 1967-09-29 1970-04-07 Bendix Corp Underwater release mechanism
US3588091A (en) * 1968-11-08 1971-06-28 Stone Mfg Co Apparatus and method for picking up and transporting cloth pieces from a stack
US3588092A (en) * 1969-06-02 1971-06-28 Singer Co Method and apparatus for removing a single ply of fabric
US3712611A (en) * 1970-03-17 1973-01-23 Tech Des Ind De L Habillement Suction gripping apparatus
US3747919A (en) * 1972-06-06 1973-07-24 Usm Corp Adjustable work pick-up device

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4372548A (en) * 1980-03-28 1983-02-08 Veb Kombinat Textima Device for separating flexible planar material
US4641827A (en) * 1983-06-02 1987-02-10 Richard R. Walton Fabric pickup and the like
US4645193A (en) * 1984-05-30 1987-02-24 Richard R. Walton Fabric pickup and the like
US4605216A (en) * 1984-07-24 1986-08-12 General Motors Corporation Material pick-up mechanism
US4822020A (en) * 1986-02-24 1989-04-18 Alain Rouleau Advanced apparatus for gripping flexible, and in particular textile, layers
US4787805A (en) * 1986-02-28 1988-11-29 Schering Aktiengesellschaft Device for the insertion into and removal from a suspended frame of parts being galvanized
US5178262A (en) * 1989-11-08 1993-01-12 Grapha-Holding Ag Sheet transporting tongs for use in chain conveyors and the like
US5248177A (en) * 1992-01-30 1993-09-28 Wrangler Fabric pickup device
US5653431A (en) * 1994-01-19 1997-08-05 Design Technology Corporation Fabric piece handling system
US20160122055A1 (en) * 2014-11-05 2016-05-05 Anhui Yongcheng Electronic And Mechanical Technology Co., Ltd. Biomimetic bag opening device for automatic filling line
US9994345B2 (en) * 2014-11-05 2018-06-12 Anhui Yongcheng Electronic And Mechanical Technology Co., Ltd. Biomimetic bag opening device for automatic filling line
US11198577B2 (en) 2018-05-04 2021-12-14 Under Armour, Inc. System and method for picking single sheet of material for further processing

Also Published As

Publication number Publication date
IT1003329B (it) 1976-06-10
FR2214292A5 (de) 1974-08-09
GB1418281A (en) 1975-12-17
DE2401737A1 (de) 1974-07-25
JPS50145691A (de) 1975-11-22
DE2401737C3 (de) 1976-03-11
DE2401737B2 (de) 1975-07-31

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