US3771272A - Flush mounting insert for sandwich panels - Google Patents

Flush mounting insert for sandwich panels Download PDF

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Publication number
US3771272A
US3771272A US00132745A US3771272DA US3771272A US 3771272 A US3771272 A US 3771272A US 00132745 A US00132745 A US 00132745A US 3771272D A US3771272D A US 3771272DA US 3771272 A US3771272 A US 3771272A
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US
United States
Prior art keywords
insert
flange
peripheral edge
thread
sheet
Prior art date
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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US00132745A
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English (en)
Inventor
M Mihaly
C Faroni
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.)
Harvard Industries Inc
Original Assignee
Amerace Corp
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Publication date
Application filed by Amerace Corp filed Critical Amerace Corp
Application granted granted Critical
Publication of US3771272A publication Critical patent/US3771272A/en
Assigned to HARVARD INDUSTRIES, INC., A CORP OF DE reassignment HARVARD INDUSTRIES, INC., A CORP OF DE ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: AMERACE CORPORATION A DE CORP
Assigned to CITIBANK, N.A. reassignment CITIBANK, N.A. SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HARMAN AUTOMOTIVE, INC., A MI CORP., HARVARD INDUSTRIES, INC., A DE CORP.
Assigned to HARVARD INDUSTRIES, INC., A CORP. OF DE., HARMAN AUTOMOTIVE, INC., A CORP. OF MICHIGAN reassignment HARVARD INDUSTRIES, INC., A CORP. OF DE. RELEASED BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: CITIBANK, N.A.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
    • F16B5/01—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening elements specially adapted for honeycomb panels
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S411/00—Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
    • Y10S411/955—Locked bolthead or nut
    • Y10S411/965—Locked bolthead or nut with retainer
    • Y10S411/968—Deformable base member

Definitions

  • ABSTRACT A threaded insert to be installed flush with the surface of an outer sheet of a sandwich panel and to be secured in the panel by a hardenable liquid adhesive, the insert having a flange at one end thereof with a tapered, threaded peripheral edge surface, which engages and positively grips the outer sheet along the corresponding edge of an opening in the sheet, through which opening the insert has been installed, so as to retain the insert in place within the sandwich panel, with the flange flush with the surface of the outer sheet, while the adhesive hardens.
  • the present invention relates generally to fasteners which are to be affixed to sandwich panels, such as those panels known as honeycomb cored structures, and pertains, more specifically, to threaded inserts having a structure which enables these inserts to be installed quickly and anchored effectively flush with the panel surface.
  • honeycomb panel Since the structural components of a honeycomb panel usually include a honeycomb core of relatively thin material sandwiched between a pair of thin facial sheets, problems arise in finding some means for effectively anchoring inserts within these sandwich panels without failure of any of the components of the panel during installation or use of the inserts.
  • the cavity is first filled with a liquid synthetic resin which is then allowed to harden.
  • the hardened material is then drilled and an insert is anchored in the drilled hole.
  • the insert is placed within the cavity and an adhesive, generally in the form of a synthetic resin material, is injected, in liquid form, into the cavity around the insert and is allowed to harden.
  • an adhesive generally in the form of a synthetic resin material
  • inserts have been developed which, upon installation in a sandwich panel, engage the upper facial sheet through which the insert is passed in such a way that the insert closes the opening in the facial sheet to prevent escape of the liquid resonous material while at the same time maintaining proper alignment of the insert in the cavity.
  • the same structure which enables these inserts to attain the above advantages also precludes installation of the insert flush with the outer surface of the facial sheet.
  • Another object of the invention is to provide an insert as set forth above which tends to preclude escape of adhesive from the cavity prior to hardening of the adhesive.
  • Still another object of the invention is to provide an insert which is easily installed without complex equipment and without elaborate, time-consuming procedures.
  • a further object of the invention is to provide an insert having a simplified construction which is easily and inexpensively fabricated in large quantities of uniform quality.
  • the insert for providing fastener means in a sandwich panel having opposite facial sheets of prescribed thickness and a cavity between the sheets for receiving the insert and a hardenable liquid adhesive prior to insertion of the insert, the cavity including an opening of predetermined diameter in one of the sheets
  • the insert comprising a body having opposite ends and a central longitudinal axis, fastener means in the body for receiving a mating fastener member, a flange projecting radially from the body and having a radial surface and an outer peripheral edge surface with a diameter corresponding to the diameter of the opening and an axial extent at least of the order of magnitude of the thickness of the one sheet, and a thread on the peripheral edge surface, the thread having a pitch no greater than approximately the thickness of the one sheet, the peripheral edge surface being tapered from a larger diameter at the radial surface to a smaller diameter toward the other end of the body such that the pitch line of the thread on the peripheral edge surface makes an
  • FIG. 1 is an elevational view, partially sectioned, illustrating an insert constructed in accordance with the invention about to be installed within a sandwich panel;
  • FIG. 2 is a top plan view of the insert
  • FIG. 3 is a bottom plan view of the insert
  • FIG. 4 is an elevational view similar to that of FIG. 1 with the insert installed in the sandwich panel and a complementary threaded fastener installed in the insert;
  • FIG. 5 is an elevational view, partially sectioned, illustrating another insert constructed in accordance with the invention.
  • FIG. 6 is a bottom plan of the insert of FIG. 5.
  • FIG. 7 is an elevational view, partially sectioned, illustrating still another insert constructed in accordance with the invention.
  • an insert 10 constructed in accordance with the invention, the insert having a body 12 with opposite ends 14 and 16 and fastener means for receiving a mating fastener member in engagement with the body.
  • the body 12 is in the form of a tubular member 20, which is preferably fabricated of a metal, such as steel or aluminum.
  • the fastener means is shown in the form of an internally threaded aperture 22 extending axially in the tubular member 20, the aperture 22 being open at the upper end 14 for the reception of a mating externally threaded member such as a screw or bolt, and being closed at the lower end 16 by means of a plug 24 permanently affixed within an annular seat 26 in the tubular member by means of a lip 28 overlapping the plug 24.
  • the body 12 of the insert 10 is provided with a flange 30 projecting radially from the body at the upper end 14, the flange 30 having an uppermost radial surface 32 and an outer peripheral edge surface 34.
  • the outer peripheral edge surface 34 is provided with a thread 36 and is tapered from a larger diameter at the uppermost radial surface 32 to a smaller diameter at the underside 38 of the flange 30 for purposes which will be described more fully hereinafter.
  • flange 40 Adjacent the lower end 16 of the body 12 of insert 10 there is provided another flange 40 which projects radially outwardly from the body and which includes a plurality of notches 42 extending radially intothe lower flange 40 from the perimeter 44 thereof, the notches including opposite side-walls 46.
  • Insert 10 is to be installed within a sandwich panel 50 which has upper and lower facial sheets 52 and 54, respectively, affixed to a honeycomb core 56.
  • a cavity 58 has been provided within the panel 50 and an opening 60 has been made through the upper facial sheet 52 and communicates with the cavity 58. As seen in FIG.
  • a hardenable adhesive 62 in liquid form, such as, for example, an epoxy resin, has beeen deposited in the cavity 58 just prior to the insertion of the insert 10.
  • the opening 60 is circular and has a diameter large enough to admit the lower end 16 ofthe insert 10 and the lower flange 40 into the cavity 58.
  • the diameter of the opening 60 is somewhat smaller than the overall diameter of the upper flange 30, hence, further advancement of the insert 10 into the cavity 58 is accomplished by rotating the insert about the central longitudinal axis L thereof.
  • the upper flange 30 has a thickness, at least at the peripheral edge sufrace 34, of at least approximately the thickness of the sheet 52 with which it is engaged and is illustrated slightly thicker than the sheet 52 to assure a secure engagement between the peripheral edge surface 34 of the flange 30 and the corresponding edge 64 of the opening in the sheet.
  • Such an engagement not only retains the insert 10 in proper alignment within the cavity 58 while the adhesive 62 is hardening, but also serves to seal the opening 60 against leakage of the liquid adhesive 62 from the cavity 58 through the opening 60 after the insert 10 is inserted and while the adhesive is hardening.
  • the tapered configuration of the peripheral edge surface 34 facilitates proper engagement of the flange 30 with the opening 60 and alignment of the insert 10 within the cavity 58 while also serving to accommodate dimensional variations in the opening 60.
  • thread 36 follows the tapered configuration of the peripheral edge surface 34 of the flange 30, the pitch line P of the thread 36 making an acute angle A with the longitudinal axis L of the body 12.
  • thread 36 is actually in the form of a spiral in that the diameter of the thread decreases as the thread is followed from radial surface 32 toward underside 38.
  • the particular spiral form of thread 36 enables the thread to grip the relatively thin peripheral edge of the opening 60 and establish a complementary thread in the opening 60 which assures that the insert 10 will be properly advanced and aligned upon installation and then retained in place until the adhesive hardens.
  • the pitch of thread 36 is relatively small and is preferably no greater than approximately the thickness of the sheet 52 so that at least one complementary thread will be established in the edge of opening 60.
  • the thickness of the upper facial sheet 52 of typical honeycomb panels now in common use varies from approximately 0.014 inch to 0.040 inch.
  • a typical pitch for thread 36 is about 0.0138 inch, somewhat less than the thinnest facial sheet of a panel in which the insert is to be installed.
  • the acute angle A is preferably in the order of magnitude of 12.
  • the flange 30 is provided with at least two recesses 68 extending axially into the flange from the uppermost radial surface 32 for accommodating the cooperative engagement of complementary rotating means in the form of a wrench or like tool illustrated at 70 and having corresponding projections 71 which can be received within the recesses 68 to rotate and drive the insert 10 into the cavity 58 until the lowermost surface 72 of the flange 73 of tool 70 contacts the upper facial sheet 52 and the uppermost radial surface 32 is renthe adhesive 62 for anchoring the insert between the sheets when the adhesive hardens.
  • complementary rotating means in the form of a wrench or like tool illustrated at 70 and having corresponding projections 71 which can be received within the recesses 68 to rotate and drive the insert 10 into the cavity 58 until the lowermost surface 72 of the flange 73 of tool 70 contacts the upper facial sheet 52 and the uppermost radial surface 32 is renthe adhesive 62 for anchoring the insert between the sheets when the adhesive hardens.
  • the adhesive 62 will establish a bond between the lower flange 40 and the lower facial sheet 54 of the panel 50 by virtue of a small clearance between the lowermost lateral surface 74 of the flange 40 and lower sheet 54 which enables adhesive 62 to effect such a bond.
  • Resistance to rotation of the insert relative to the panel 50 upon hardening of the adhesive 62 is enhanced by the notches 42 in the flange 40, which will become filled with adhesive upon insertion of the insert, by virtue of the keying effect of the solidified adhesive 62 within the notches 42.
  • Alternative means for precluding such rotation of the insert may be provided by flats on the flange 40, rather than notches, or a similar structure which will interengage the solidified adhesive.
  • the tubular member of the body 12 is deformed radially inwardly at diametrically opposite areas 76. These areas 76 of inward deformation radially constrict the threaded aperture 22 adjacent the lower end 16 of the body 12 and serve as a screw stop.
  • the complementary fastener member'80 may be advanced only until the end 82 of the member abuts the deformed areas 76, at which point the complementary threaded member 80 will be inhibited from abutting the plug 24 at the bottom of the aperture 22.
  • the complementary threaded member 80 is precluded from abutting and possibly pushing against the plug 24. Dislocation or bulging out of the plug 24 could cause undesirable bulging out of the lower facial sheet 54 with concomitant deleterious effects upon the aesthetic appearance of the outer face 84 of the sheet 54.
  • insert 100 also includes a body 112 having a threaded aperture 1 14 therein and including an upper flange 116 projecting radially from the upper end 118 of the body 112 and a lower flange 120 projecting radially from the lower end 122 of the body.
  • the upper flange .116 has an uppermost radial surface 124 terminating in a peripheral edge surface 128 which, as in the earlier-described embodiment, is provided with a spiral thread 130 which progresses from a larger diameter at uppermost radial surface 124 to a smaller diameter at the underside 132 of the flange 116.
  • the threaded aperture 114 terminates short of the lower end 122 of the body 112 so that the remaining portion 134 of the body 112 serves as the means which closes the aperture 114 at the bottom end of the body.
  • the potrion 134 serves as a screw stop to preclude deleterious downward movement of a mating threaded fastener inserted into the threaded aperture 114.
  • insert 110 may be engaged by a tool 140 having a threaded extension 142 which is to be received within threaded aperture 114 until the lowermost surface 114 of a flange 146 on the tool 140 is seated upon upper surface 124 of insert 110.
  • the tool 140 will then enable the thread to engage an opening in the panel within which the insert is to be installed.
  • the tool may be retracted by reverse rotation.
  • the lower flange 120 is provided with means for engaging the hardened adhesive to impede rotation of the insert, in this instance the means being in the form opposite flats 150 on the perimeter of the flange 120.
  • FIG. 7 still another embodiment of the invention is illustrated in the form of insert 210 having a body 212 with an upper flange 214 projecting radially from the upper end 216 of the body 212 and a lower flange 218 projecting radially from the lower end 220 of the body.
  • the upper flange 214 has an uppermost radial surface 222 terminating in a peripheral edge surface 224, which, as in the earlier-described embodiments, is provided with a spiral thread 226 progressing from a larger diameter at the uppermost radial surface 222 to a smaller diameter at the underside 228 of the flange 214.
  • Body 212 of insert 210 is provided with an aperture 230 which is closed at the lower end thereof by a plug member 232 affixed within a recess 234 in the lower flange 218.
  • An internally threaded sleeve 236 is placed within the aperture 230 to provide the body 212 with an internally threaded fastener means capable of receiving a complementary externally threaded fastener member (not shown).
  • the threaded sleeve 236 is itself provided with a radial flange 238 which projects into an enlarged portion 240 of the aperture 230 to retain the sleeve 236 within the body 212 of the insert 210.
  • Rotation of the sleeve 236 relative to the body 212 is precluded by a key 242 which engages a corresponding slot 244 in the flange 238. Since there is some clearance between the sleeve 236 and the walls of the aperture 230, a certain amount of radial float is permitted to thereby facilitate alignment of the internal threads of the insert 210 with a mating threaded fastener.
  • the present insert 210 includes a pair of opposite recesses 250 in the upper flange 214 for facilitating installation of the insert, and the lower flange 218 is provided with notches 252 for precluding rotation of the insert once the adhesive is hardened.
  • Threaded sleeve 236 may be permanently deformed radially inwardly at 254 to provide the thread thereof with a prevailing torque type self-locking mechanism of a now well-known variety.
  • the body of either of the insert 10 or 110 may be so deformed to provide the threaded apertures of those inserts with such a selflocking mechanism.
  • a body having opposite ends and a central longitudinal axis
  • a flange projecting radially from the body and having a radial surface and an outer peripheral edge surface with a diameter corresponding to the diameter of said opening and an axial extent substantially greater than the thickness of said one sheet;
  • a thread on the peripheral edge surface said thread having a pitch substantially less than the axial extent of said peripheral edge surface, said peripheral edge surface being tapered from a larger diameter at said radial surface to a smaller diameter toward the other end of the body such that the pitch line of the thread on the peripheral edge surface makes an actue angle with the longitudinal axis of the body;
  • a body having opposite ends, a central longitudinal axis, and an aperture extending axially into said body between said opposite ends;
  • a flange projecting radially from the body adjacent the other of said opposite ends thereof, said flange having a radial surface at said other end of the body and an outer peripheral edge surface with a diameter corresponding to the diametero of said opening and an axial extent of at least approximately the thickness of said one sheet;
  • the insert of claim 4 including at least one radial constriction in said aperture immediately adjacent said aperture closing means so as to inhibit the passage of the complementary externally threaded member into said aperture beyond said radial constriction.
  • the flange includes at least two recesses extending axially from said radial surface into the flange for enabling the cooperative engagement of complementary rotating means UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION Patent No. 3,771,272 Dated Noyember 13. 1973 Inventor(s) Michael F. Mihaly et al It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Connection Of Plates (AREA)
  • Standing Axle, Rod, Or Tube Structures Coupled By Welding, Adhesion, Or Deposition (AREA)
US00132745A 1971-04-09 1971-04-09 Flush mounting insert for sandwich panels Expired - Lifetime US3771272A (en)

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US13274571A 1971-04-09 1971-04-09

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US (1) US3771272A (enExample)
CA (1) CA954431A (enExample)
DE (1) DE2216488A1 (enExample)
FR (1) FR2132812B1 (enExample)
GB (1) GB1386806A (enExample)
IT (1) IT951000B (enExample)

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4288189A (en) * 1979-08-10 1981-09-08 Yardley Products Corp. Threaded insert
US4360993A (en) * 1980-01-18 1982-11-30 Fukubi Kagaku Kogyo Kabushiki Kaisha Method for constructing flush wall lathing
US4577450A (en) * 1983-06-06 1986-03-25 The Boeing Company Waterproof floor panel fastening system, accessible from above
US4717612A (en) * 1986-10-20 1988-01-05 The B. F. Goodrich Company Fasteners for honeycomb structures
US4752171A (en) * 1987-04-16 1988-06-21 Illinois Tool Works, Inc. Frictionally welded fastening anchor
US6540462B1 (en) * 1999-09-16 2003-04-01 Ejot Verbindungstechnik Gmbh & Co. Screw connection
US20040022599A1 (en) * 2002-06-27 2004-02-05 Nagayama Electronic Industry Co., Ltd., T-nut
US20040037666A1 (en) * 2000-06-30 2004-02-26 Kelch Richard E. Anti-cross threading device
US20040247411A1 (en) * 2003-06-09 2004-12-09 Nagayama Electronic Industry Co., Ltd T-nut for hopper feeding having a projection
US20060140737A1 (en) * 2004-12-28 2006-06-29 Nagayama Electric Co., Ltd. T-nut
US20060174553A1 (en) * 2004-11-30 2006-08-10 Airbus Deutschland Gmbh Retainer and method for attaching lines to lightweight elements of means of transport, in particular to sandwich panels of aircraft
US20090293421A1 (en) * 2008-05-28 2009-12-03 The Boeing Company Fastener receptacle for a panel
US20110031776A1 (en) * 2009-08-07 2011-02-10 David Edwards Vehicle floor assembly with insert
US20120181402A1 (en) * 2011-01-13 2012-07-19 3Form, Inc. Adjustable bushing assemblies, panel mounting systems, and methods
US20120219355A1 (en) * 2011-02-24 2012-08-30 Mitsutaka Masuda Structure for installing insert nut in a panel
US20130214107A1 (en) * 2008-11-14 2013-08-22 3Form, Inc. Melt-bondable panel mounting brackets, systems, and methods
US20140212241A1 (en) * 2013-01-31 2014-07-31 B/E Aerospace, Inc. Insert and method for anchoring in a cored panel
US20140284335A1 (en) * 2006-11-17 2014-09-25 The Boeing Company Receptacle for fasteners and an associated installation method
CN104185741A (zh) * 2011-12-30 2014-12-03 奥格斯塔韦斯兰股份公司 导电材料的插入件及将该插入件装配于支撑构件的工具和方法
WO2019148272A1 (en) * 2018-01-30 2019-08-08 Millecento Designs Inc. Adjustable potted insert
US20220282750A1 (en) * 2016-05-13 2022-09-08 Sky Climber Fasteners LLC Ballistic Resistant Panel Insert Assembly
US11472154B2 (en) * 2016-07-25 2022-10-18 Nolax Ag Sandwich component, method for producing a sandwich component, and use of a sandwich component
US11635101B2 (en) * 2017-06-12 2023-04-25 Nolax Ag Component, method for producing a component, kit and method for connecting components
US11732740B2 (en) 2020-05-12 2023-08-22 Sky Climber Fasteners LLC Blind fastener
US20230302747A1 (en) * 2019-06-07 2023-09-28 Tpi Technology, Inc Mold precision pins for component location during fabrication of wind turbine blades
US11795987B2 (en) 2020-07-20 2023-10-24 Bpc Lg 2, Llc Rivetless nut plate
US12060906B2 (en) 2021-08-06 2024-08-13 Bpc Lg 2, Llc Panel fastener
US20250163706A1 (en) * 2021-04-12 2025-05-22 Qinjiang ZHU Fabricated leveling composite radiation energy-saving concrete wall and construction method therefor

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AUPM587694A0 (en) * 1994-05-25 1994-06-16 Ramset Fasteners (Aust.) Pty. Limited Chemically-set anchor system
AU696158B2 (en) * 1994-05-25 1998-09-03 Ramset Fasteners (Aust.) Pty. Limited Chemically-set anchor system

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US2880830A (en) * 1957-02-21 1959-04-07 Frederick W Rohe Sandwich panel and flanged insert nut assembly
US2967448A (en) * 1955-06-20 1961-01-10 Hallock Robert Lay Drive fastener with anchoring teeth on the tapered portion thereof
US3019865A (en) * 1959-11-11 1962-02-06 Frederick W Rohe Floating molded insert
US3282015A (en) * 1962-04-20 1966-11-01 Frederick W Rohe Moldable insert fastener with dual potting ports in head
US3297071A (en) * 1964-10-08 1967-01-10 Newton Insert Co Locking of threaded parts against removal
US3313078A (en) * 1964-03-30 1967-04-11 Frederick W Rohe Molded-in insert with floating nut
US3384142A (en) * 1965-04-05 1968-05-21 Frederick W Rohe Sandwich panel insert, rotatable snap-in type
US3451181A (en) * 1967-08-29 1969-06-24 Robert Neuschotz Honeycomb structures containing threaded inserts
US3646981A (en) * 1970-06-02 1972-03-07 Amerace Esna Corp Insert for sandwich panels

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2967448A (en) * 1955-06-20 1961-01-10 Hallock Robert Lay Drive fastener with anchoring teeth on the tapered portion thereof
US2880830A (en) * 1957-02-21 1959-04-07 Frederick W Rohe Sandwich panel and flanged insert nut assembly
US3019865A (en) * 1959-11-11 1962-02-06 Frederick W Rohe Floating molded insert
US3282015A (en) * 1962-04-20 1966-11-01 Frederick W Rohe Moldable insert fastener with dual potting ports in head
US3313078A (en) * 1964-03-30 1967-04-11 Frederick W Rohe Molded-in insert with floating nut
US3434261A (en) * 1964-03-30 1969-03-25 Frederick W Rohe Molded-in insert with floating nut
US3297071A (en) * 1964-10-08 1967-01-10 Newton Insert Co Locking of threaded parts against removal
US3384142A (en) * 1965-04-05 1968-05-21 Frederick W Rohe Sandwich panel insert, rotatable snap-in type
US3451181A (en) * 1967-08-29 1969-06-24 Robert Neuschotz Honeycomb structures containing threaded inserts
US3646981A (en) * 1970-06-02 1972-03-07 Amerace Esna Corp Insert for sandwich panels

Cited By (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4288189A (en) * 1979-08-10 1981-09-08 Yardley Products Corp. Threaded insert
US4360993A (en) * 1980-01-18 1982-11-30 Fukubi Kagaku Kogyo Kabushiki Kaisha Method for constructing flush wall lathing
US4577450A (en) * 1983-06-06 1986-03-25 The Boeing Company Waterproof floor panel fastening system, accessible from above
US4717612A (en) * 1986-10-20 1988-01-05 The B. F. Goodrich Company Fasteners for honeycomb structures
AU605186B2 (en) * 1986-10-20 1991-01-10 B.F. Goodrich Company, The Fasteners for honeycomb structures
US4752171A (en) * 1987-04-16 1988-06-21 Illinois Tool Works, Inc. Frictionally welded fastening anchor
US6540462B1 (en) * 1999-09-16 2003-04-01 Ejot Verbindungstechnik Gmbh & Co. Screw connection
US20040037666A1 (en) * 2000-06-30 2004-02-26 Kelch Richard E. Anti-cross threading device
US20040022599A1 (en) * 2002-06-27 2004-02-05 Nagayama Electronic Industry Co., Ltd., T-nut
US6854943B2 (en) * 2002-06-27 2005-02-15 Nagayama Electronic Industry Co., Ltd. T-nut
US20040247411A1 (en) * 2003-06-09 2004-12-09 Nagayama Electronic Industry Co., Ltd T-nut for hopper feeding having a projection
US7189163B2 (en) 2003-06-09 2007-03-13 Nagayama Electronic Industry Co., Ltd. T-nut for hopper feeding having a projection
US7419343B2 (en) 2003-06-09 2008-09-02 Nagayama Electronic Industry Co., Ltd. T-nut for hopper feeding having a projection
US20070031208A1 (en) * 2003-06-09 2007-02-08 Nagayama Electronic Industry Co., Ltd. T-nut for hopper feeding having a projection
US20060174553A1 (en) * 2004-11-30 2006-08-10 Airbus Deutschland Gmbh Retainer and method for attaching lines to lightweight elements of means of transport, in particular to sandwich panels of aircraft
US20060140737A1 (en) * 2004-12-28 2006-06-29 Nagayama Electric Co., Ltd. T-nut
US20140284335A1 (en) * 2006-11-17 2014-09-25 The Boeing Company Receptacle for fasteners and an associated installation method
US9234536B2 (en) * 2006-11-17 2016-01-12 The Boeing Company Receptacle for fasteners and an associated installation method
US20090293421A1 (en) * 2008-05-28 2009-12-03 The Boeing Company Fastener receptacle for a panel
US8136328B2 (en) * 2008-05-28 2012-03-20 The Boeing Company Fastener receptacle for a panel
US20130214107A1 (en) * 2008-11-14 2013-08-22 3Form, Inc. Melt-bondable panel mounting brackets, systems, and methods
US20110031776A1 (en) * 2009-08-07 2011-02-10 David Edwards Vehicle floor assembly with insert
US8641128B2 (en) * 2009-08-07 2014-02-04 Honda Motor Co., Ltd. Vehicle floor assembly with insert
US20120181402A1 (en) * 2011-01-13 2012-07-19 3Form, Inc. Adjustable bushing assemblies, panel mounting systems, and methods
US8584433B2 (en) * 2011-02-24 2013-11-19 The Yokohama Rubber Co., Ltd. Structure for installing insert nut in a panel
US20120219355A1 (en) * 2011-02-24 2012-08-30 Mitsutaka Masuda Structure for installing insert nut in a panel
CN104185741A (zh) * 2011-12-30 2014-12-03 奥格斯塔韦斯兰股份公司 导电材料的插入件及将该插入件装配于支撑构件的工具和方法
CN104185741B (zh) * 2011-12-30 2016-05-18 奥格斯塔韦斯兰股份公司 导电材料的插入件及将该插入件装配于支撑构件的工具和方法
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US11732740B2 (en) 2020-05-12 2023-08-22 Sky Climber Fasteners LLC Blind fastener
US12060899B2 (en) 2020-05-12 2024-08-13 Bpc Lg 2, Llc Blind fastener
US12135052B2 (en) 2020-07-20 2024-11-05 Bpc Lg 2, Llc Rivetless nut plate
US11795987B2 (en) 2020-07-20 2023-10-24 Bpc Lg 2, Llc Rivetless nut plate
US20250163706A1 (en) * 2021-04-12 2025-05-22 Qinjiang ZHU Fabricated leveling composite radiation energy-saving concrete wall and construction method therefor
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US12060906B2 (en) 2021-08-06 2024-08-13 Bpc Lg 2, Llc Panel fastener

Also Published As

Publication number Publication date
IT951000B (it) 1973-06-20
FR2132812B1 (enExample) 1973-06-29
GB1386806A (en) 1975-03-12
DE2216488A1 (de) 1972-10-12
CA954431A (en) 1974-09-10
FR2132812A1 (enExample) 1972-11-24

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