US3328854A - Grommet reinforcement for canvas material - Google Patents

Grommet reinforcement for canvas material Download PDF

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Publication number
US3328854A
US3328854A US450767A US45076765A US3328854A US 3328854 A US3328854 A US 3328854A US 450767 A US450767 A US 450767A US 45076765 A US45076765 A US 45076765A US 3328854 A US3328854 A US 3328854A
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United States
Prior art keywords
grommet
canvas
canvas material
ring
hole
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Expired - Lifetime
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US450767A
Inventor
Aldo L Tombari
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Hettrick Manufacturing Co
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Hettrick Manufacturing Co
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Priority to US450767A priority Critical patent/US3328854A/en
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Publication of US3328854A publication Critical patent/US3328854A/en
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    • AHUMAN NECESSITIES
    • A44HABERDASHERY; JEWELLERY
    • A44BBUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B13/00Hook or eye fasteners
    • A44B13/0058Eyelets or grommets
    • A44B13/0076Eyelets or grommets characterised by their way of fastening to the support
    • A44B13/0082Eyelets or grommets characterised by their way of fastening to the support by riveting
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00Buckles, buttons, clasps, etc.
    • Y10T24/37Drawstring, laced-fastener, or separate essential cooperating device therefor
    • Y10T24/3742Drawstring, laced-fastener, or separate essential cooperating device therefor having eyelet type directing means
    • Y10T24/3745Drawstring, laced-fastener, or separate essential cooperating device therefor having eyelet type directing means with permanently deformed mounting structure

Definitions

  • An object of this invention is to reinforce the grommet area in canvas products of the above character so that the reinforcing elements, grommets and canvas material are so interconnected that they cooperate in a new and improved manner more effectively to militate against tearing and damage to the assembly and resist stresses of great magnitude.
  • FIGURE 1 is a top fragmentary perspective view of a sheet of canvas material provided with grommets;
  • FIGURE 2 is an enlarged fragmentary plan view of an edge portion of the sheet of canvas material showing one of the grommets and the reinforcing strip for same;
  • FIGURE 3 is Ia sectional view substantially on the line 3 3 of FIGURE 2;
  • FIGURE 4 is an enlarged exploded view showing in perspective the two parts of the grommet.
  • the illustrated embodiment of the invention shows a sheet of canvas material 10, which may be waterproofed canvas for use as tarpaulins, tents, awnings and the like.
  • the edge portions of the canvas material are doubled upon itself to form a two ply thickness and these portions are secured by sewed seams 12.
  • a series of grommets G At the corners and along the side edge portions is a series of grommets G, which are secured and reinforced in a manner hereinafter described.
  • each of the reinforcing strips 14 extends a considerable distance on each side of the grommet.
  • the strip may extend beyond the grommet -a distance of the order of the space from the center of the grommet to its periphery.
  • the particular distance is not critical, it must be adequate to afford a reinforcement not only for the immediate area of the grommet but also for the adjoining area.
  • the sewed seams pass through the reinforcing material 14 or, as in the corner portions, the two seams may extend through the reinforcing strip.
  • the strip 14 is preferably of a somewhat stiff material having a certain amount of flexibility, such for example as vinyl plastic or polyethylene.
  • the reinforcing strips are placed in the desired area and thereafter a hole 13 is punched through both the canvas material (two thicknesses) and the reinforcing strip 14.
  • a hole 13 is punched through both the canvas material (two thicknesses) and the reinforcing strip 14.
  • yone of the two grommet parts may be applied, this being the part having a sheet metal ring 15 with a circular row of teeth 16 extending at right angles from the edge of the hole in the ring.
  • the hole 13 is of less diameter than the diameter of the circular row of teeth 16 so that when the ring 15 is applied, the teeth are forced through both thicknesses of the canvass material and also through the reinforcing strip 14 in a region spaced from the edge of the hole.
  • the other grommet part has a sheet metal ring 17 and an integral outwardly extending sleeve 18 'of a size to extend through the hole in the ring 15.
  • the sleeve 1S is then forcibly inserted through the registering holes in the canvas plies and the reinforcing strip 14 and the hole in the ring 15.
  • a suitable tool such as is well known for this purpose, the lfree edge of the sleeve 18 is rolled or crimped 'over against the outer face of the ring 15 and the teeth 16 bent over or clinched inwardly against the adjacent ply of canvas material.
  • a device of the class described comprising a sheet of canvas material the edge portions of which are doubled upon themselves to provide a pocket of two ply thickness, a flat relatively stiff plastic strip of reinforcing material in said pocket for each grommet intended therefor, each grommet consisting of a ring having a circular row of teeth on the inner side and a second ring having an integral central sleeve, the teeth of said rst ring extending through both thicknesses of canvas material and said reinforcing strip, there being a h'ole punched through both thicknesses of canvas material and the reinforcing strip in such manner that the edge of the hole is spaced laterally from said teeth, the slee've of said second ring extending through said hole with the free end crimped over against the outer face of said first ring and the teeth of said first ring being clinched against the adjacent canvas material, whereby appreciable portions of said plastic strip ands canvas materials lie between said clinched teeth and said sleeve so that stresses

Description

July 4 19557 A. L. TOMBARI 3,328,854
GROMMET RE'INFORCEMENT FOR CANVAS MATERIAL Filed April 26, 1965 ai 3 I I NVENTOR.
ALDO L. TOMBARI BY United States Patent O 3,328,854 GROMMET REINFORCEMENT FOR CANVAS MATERIAL Aldo L. Tombari, Statesville, N.C., assigner to The Hettrick Manufacturing Company, Statesville, N C., a corporation of Delaware Filed Apr. 26, 1965, Ser. No. 450,767 1 Claim. (Cl. 24-141) This invention relates to the mounting of grommets, as used in waterproofed canvas products, such as tarpaulins, tents, awnings and the like.
Canvas products of the above type equipped with grommets have had difficulty in preventing the grommets from pulling through or tearing the material when subjected to severe stresses imposed thereon by ropes passing therethrough. Reinforcements heretofore provided for coping with this problem have not been entirely satisfactory principally because they failed to hold the material positively to the grommet and because of inadequate support for the material where the stresses are the greatest.
An object of this invention is to reinforce the grommet area in canvas products of the above character so that the reinforcing elements, grommets and canvas material are so interconnected that they cooperate in a new and improved manner more effectively to militate against tearing and damage to the assembly and resist stresses of great magnitude.
Other objects and advantages of the invention will hereinafter appear and, for purposes of illustration but not of limitation, an embodiment of the invention is shown on the -accompanying drawings, in which FIGURE 1 is a top fragmentary perspective view of a sheet of canvas material provided with grommets;
FIGURE 2 is an enlarged fragmentary plan view of an edge portion of the sheet of canvas material showing one of the grommets and the reinforcing strip for same;
FIGURE 3 is Ia sectional view substantially on the line 3 3 of FIGURE 2; and
FIGURE 4 is an enlarged exploded view showing in perspective the two parts of the grommet.
The illustrated embodiment of the invention shows a sheet of canvas material 10, which may be waterproofed canvas for use as tarpaulins, tents, awnings and the like. The edge portions of the canvas material are doubled upon itself to form a two ply thickness and these portions are secured by sewed seams 12. At the corners and along the side edge portions is a series of grommets G, which are secured and reinforced in a manner hereinafter described.
Disposed within the doubled edge portions in the region of the grommets are flat reinforcing pieces or strips 14, which, as shown, are rectangular in configuration but may be of any desired shape, such as triangular. As will more fully appear hereinafter, each of the reinforcing strips 14 extends a considerable distance on each side of the grommet. For example, the strip may extend beyond the grommet -a distance of the order of the space from the center of the grommet to its periphery. Although the particular distance is not critical, it must be adequate to afford a reinforcement not only for the immediate area of the grommet but also for the adjoining area. If desired, the sewed seams pass through the reinforcing material 14 or, as in the corner portions, the two seams may extend through the reinforcing strip. The strip 14 is preferably of a somewhat stiff material having a certain amount of flexibility, such for example as vinyl plastic or polyethylene.
In practice, the reinforcing strips are placed in the desired area and thereafter a hole 13 is punched through both the canvas material (two thicknesses) and the reinforcing strip 14. After the hole is punched through the several plies, as indicated, yone of the two grommet parts may be applied, this being the part having a sheet metal ring 15 with a circular row of teeth 16 extending at right angles from the edge of the hole in the ring. It should be understood that the hole 13 is of less diameter than the diameter of the circular row of teeth 16 so that when the ring 15 is applied, the teeth are forced through both thicknesses of the canvass material and also through the reinforcing strip 14 in a region spaced from the edge of the hole.
The other grommet part has a sheet metal ring 17 and an integral outwardly extending sleeve 18 'of a size to extend through the hole in the ring 15. The sleeve 1S is then forcibly inserted through the registering holes in the canvas plies and the reinforcing strip 14 and the hole in the ring 15. Then by a suitable tool, such as is well known for this purpose, the lfree edge of the sleeve 18 is rolled or crimped 'over against the outer face of the ring 15 and the teeth 16 bent over or clinched inwardly against the adjacent ply of canvas material.
From the above description it will be manifest that an exceedingly secure connection is afforded between the grommet, the reinforcing strip and the canvas material so that it militates satisfactorily against the force exerted by a rope, for example, threaded through the grommet which would otherwise be of suicient magnitude to tear the grommet from the material. Another advantage of the above construction where the grommet is disposed at a corner of the material is to prevent dog-earring thereto as is typical in such locations. An important feature of the invention is the embedding of the teeth not only in the canvas material but also in the reinforcing strip in a region away from the hole thereby to distri-bute the stress exerted against the grommet over the adjacent areas of the canvas material remote from the hole through same. v
Numerous changes in details of construction, arrangement and choice of materials may be effected without departing from the spirit of the invention, especially as defined in the appended claim.
What I claim is:
A device of the class described comprising a sheet of canvas material the edge portions of which are doubled upon themselves to provide a pocket of two ply thickness, a flat relatively stiff plastic strip of reinforcing material in said pocket for each grommet intended therefor, each grommet consisting of a ring having a circular row of teeth on the inner side and a second ring having an integral central sleeve, the teeth of said rst ring extending through both thicknesses of canvas material and said reinforcing strip, there being a h'ole punched through both thicknesses of canvas material and the reinforcing strip in such manner that the edge of the hole is spaced laterally from said teeth, the slee've of said second ring extending through said hole with the free end crimped over against the outer face of said first ring and the teeth of said first ring being clinched against the adjacent canvas material, whereby appreciable portions of said plastic strip ands canvas materials lie between said clinched teeth and said sleeve so that stresses imposed on the grommet are distributed over adjcent areas of the canvas mate- 2,562,005 7/1951 Wenzel et al 24-141 X rial remote from the hole. 2,795,830 6/ 1957 Leatherman 24-141 References Cited 14 524 PTNTS UNITED STATES PATENTS 5 rea Y n am' 84,900 12/1868 Norcross 24-141 WILLIAM FELDMAN, Pf'ilal'y Examiner'.
629,754 7/1899 POpham 24-141 DONALD A. GRIFFIN, Examiner.
US450767A 1965-04-26 1965-04-26 Grommet reinforcement for canvas material Expired - Lifetime US3328854A (en)

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Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4044412A (en) * 1976-07-02 1977-08-30 Magnatex Corporation Tufting button
US4372013A (en) * 1981-07-27 1983-02-08 Gautier Jr Charlie V Grommet
US4479287A (en) * 1981-05-10 1984-10-30 Hitoshi Asaka Eye hole for roping reinforced by grommet metal fittings as in sheet-like articles
US4577376A (en) * 1982-01-01 1986-03-25 Clendinen Charles D Snap fastener
US4646399A (en) * 1983-08-10 1987-03-03 Burton, Parker & Schramm, P.C. Snap fastener
US4660240A (en) * 1985-05-13 1987-04-28 Hutton William B Device for attaching sheets to a waterbed
US4742602A (en) * 1987-09-29 1988-05-10 Horner James W Tarpaulin securing assembly
US4996752A (en) * 1981-04-20 1991-03-05 Clendinen Charles D Stud and eyelet fastener
US5497564A (en) * 1993-07-02 1996-03-12 Converse Inc. Rigid/semi-rigid plastic shoe strap construction
US5564756A (en) * 1995-06-05 1996-10-15 Hamilton; Tom Duct coupling pad for joining flexible ducts
US6151759A (en) * 1998-11-02 2000-11-28 Harward; Norris K. Finger rings for a water ski boot
US6224258B1 (en) * 1998-04-06 2001-05-01 Darren W. Dodson Storage system including bag with hole reinforcing structure
US20030167610A1 (en) * 2000-08-12 2003-09-11 Heinz-Dieter Kopatz Eyelet for reinforcing the edge of a hole in a carrier strip and device for attaching an eyelet to a carrier strip
US20050178420A1 (en) * 2004-02-18 2005-08-18 Eastman Holding Company Kit, method and apparatus for constructing a portable outdoor enclosure
US20080092458A1 (en) * 2006-10-20 2008-04-24 Payne Stephen W Acoustic isolator clip for isolating wallboard support channels from frame member
US20110010891A1 (en) * 2009-07-15 2011-01-20 John Rowley Grommet for use in window treatments
WO2014152590A1 (en) * 2013-03-15 2014-09-25 Nite Ize, Inc. Systems and methods for mountable and connectable twist ties
US20150007412A1 (en) * 2013-07-02 2015-01-08 Patagonia, Inc. System and method for thermally bonding grommets to fabric
US8944718B2 (en) 2010-09-23 2015-02-03 C-Flex Bearing Co., Inc. Clamping bushing
US9003618B2 (en) * 2012-08-02 2015-04-14 Riri S.A. Reinforcing eyelet for a hole
US20150266255A1 (en) * 2014-03-19 2015-09-24 E.L. Hatton Sales Co. Banner making machine
US9506268B1 (en) * 2014-11-18 2016-11-29 Michael W. Bright Roofing tent
US10349790B2 (en) * 2014-01-31 2019-07-16 Kimberly-Clark Worldwide, Inc. Refillable, flexible dispenser with handle for stacked moist wipes
US10470530B2 (en) * 2017-01-26 2019-11-12 Fimma S.P.A. Double-sided eyelet with variable height

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US84900A (en) * 1868-12-15 Improvement in grommets
US629754A (en) * 1898-05-13 1899-07-25 Charles W Hayes Gromet or eyelet.
GB190414524A (en) * 1904-06-28 1905-04-13 Edwin John Davey Improvements in Metallic Eyelets or Gromets for Sails, Tents Waterproof Sheets and other like Articles.
US2562005A (en) * 1947-06-04 1951-07-24 Wenzel Tent & Duck Co H Tarpaulin
US2795830A (en) * 1955-04-20 1957-06-18 Goodyear Aircraft Corp Fabric lacing edge

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US84900A (en) * 1868-12-15 Improvement in grommets
US629754A (en) * 1898-05-13 1899-07-25 Charles W Hayes Gromet or eyelet.
GB190414524A (en) * 1904-06-28 1905-04-13 Edwin John Davey Improvements in Metallic Eyelets or Gromets for Sails, Tents Waterproof Sheets and other like Articles.
US2562005A (en) * 1947-06-04 1951-07-24 Wenzel Tent & Duck Co H Tarpaulin
US2795830A (en) * 1955-04-20 1957-06-18 Goodyear Aircraft Corp Fabric lacing edge

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4044412A (en) * 1976-07-02 1977-08-30 Magnatex Corporation Tufting button
US4996752A (en) * 1981-04-20 1991-03-05 Clendinen Charles D Stud and eyelet fastener
US4479287A (en) * 1981-05-10 1984-10-30 Hitoshi Asaka Eye hole for roping reinforced by grommet metal fittings as in sheet-like articles
US4372013A (en) * 1981-07-27 1983-02-08 Gautier Jr Charlie V Grommet
US4577376A (en) * 1982-01-01 1986-03-25 Clendinen Charles D Snap fastener
US4646399A (en) * 1983-08-10 1987-03-03 Burton, Parker & Schramm, P.C. Snap fastener
US4660240A (en) * 1985-05-13 1987-04-28 Hutton William B Device for attaching sheets to a waterbed
US4742602A (en) * 1987-09-29 1988-05-10 Horner James W Tarpaulin securing assembly
US5497564A (en) * 1993-07-02 1996-03-12 Converse Inc. Rigid/semi-rigid plastic shoe strap construction
US5564756A (en) * 1995-06-05 1996-10-15 Hamilton; Tom Duct coupling pad for joining flexible ducts
US6224258B1 (en) * 1998-04-06 2001-05-01 Darren W. Dodson Storage system including bag with hole reinforcing structure
US6151759A (en) * 1998-11-02 2000-11-28 Harward; Norris K. Finger rings for a water ski boot
US20030167610A1 (en) * 2000-08-12 2003-09-11 Heinz-Dieter Kopatz Eyelet for reinforcing the edge of a hole in a carrier strip and device for attaching an eyelet to a carrier strip
US6907647B2 (en) * 2000-08-12 2005-06-21 William Prym Gmbh & Co. Kg Eyelet for reinforcing the edge of a hole in a carrier strip and device for attaching an eyelet to a carrier strip
US20050178420A1 (en) * 2004-02-18 2005-08-18 Eastman Holding Company Kit, method and apparatus for constructing a portable outdoor enclosure
US7320332B2 (en) * 2004-02-18 2008-01-22 Eastman Holding Company Portable outdoor enclosure
US20080092458A1 (en) * 2006-10-20 2008-04-24 Payne Stephen W Acoustic isolator clip for isolating wallboard support channels from frame member
US7647744B2 (en) * 2006-10-20 2010-01-19 United States Gypsum Company Acoustic isolator clip for isolating wallboard support channels from frame member
US20110010891A1 (en) * 2009-07-15 2011-01-20 John Rowley Grommet for use in window treatments
US8944718B2 (en) 2010-09-23 2015-02-03 C-Flex Bearing Co., Inc. Clamping bushing
US9003618B2 (en) * 2012-08-02 2015-04-14 Riri S.A. Reinforcing eyelet for a hole
WO2014152590A1 (en) * 2013-03-15 2014-09-25 Nite Ize, Inc. Systems and methods for mountable and connectable twist ties
JP2016515076A (en) * 2013-03-15 2016-05-26 ナイト・アイズ,インコーポレーテッド Systems and methods for installable and connectable twist ties
US11091305B2 (en) 2013-03-15 2021-08-17 Nite Ize, Inc. Systems and methods for mountable and connectable twist ties
US20150007412A1 (en) * 2013-07-02 2015-01-08 Patagonia, Inc. System and method for thermally bonding grommets to fabric
US10349790B2 (en) * 2014-01-31 2019-07-16 Kimberly-Clark Worldwide, Inc. Refillable, flexible dispenser with handle for stacked moist wipes
US20150266255A1 (en) * 2014-03-19 2015-09-24 E.L. Hatton Sales Co. Banner making machine
US20180339482A1 (en) * 2014-03-19 2018-11-29 E.L. Hatton Sales Co. Banner making machine
US9987816B2 (en) * 2014-03-19 2018-06-05 E.L. Hatton Sales Co. Banner making machine
US9506268B1 (en) * 2014-11-18 2016-11-29 Michael W. Bright Roofing tent
US10470530B2 (en) * 2017-01-26 2019-11-12 Fimma S.P.A. Double-sided eyelet with variable height

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