US3722671A - Sandwich panel insert and installation holder assembly and method of handling - Google Patents

Sandwich panel insert and installation holder assembly and method of handling Download PDF

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Publication number
US3722671A
US3722671A US00073813A US3722671DA US3722671A US 3722671 A US3722671 A US 3722671A US 00073813 A US00073813 A US 00073813A US 3722671D A US3722671D A US 3722671DA US 3722671 A US3722671 A US 3722671A
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US
United States
Prior art keywords
insert
head
sandwich panel
inserts
hole
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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US00073813A
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English (en)
Inventor
G Wright
C Phelan
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.)
SPS Technologies LLC
Original Assignee
Shur Lok Corp
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Filing date
Publication date
Application filed by Shur Lok Corp filed Critical Shur Lok Corp
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Publication of US3722671A publication Critical patent/US3722671A/en
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    • 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

Definitions

  • the insert and tab units are held in coaxial assembly by a wire stringer of hairpin form having respective legs received in peripheral notches in the radial flange heads of the insert, which notches are utilized for injection of potting compound into a hole in a sandwich panel in which the insert is positioned by the tab.
  • the column of inserts and tabs is enclosed in a dust-proof casing having an opener thread for slitting its side for removal of the insert-tab units.
  • the holding tap disclosed in the aforesaid Phelan Patents is one having an adhesive coating covered by a thin sheet which is stripped off to expose the adhesive.
  • the holding tab is then manually attached to the end face of an insert by pressing the latter against the central area of the adhesive coating after adjusting its position to bring a pair of apertures in the tab into registration with a pair of potting apertures or notches in the periphery of the insert head, leaving a marginal portion of the adhesive coating projecting radially beyond the periphery of the insert head for attachment to the face of a panel skin around the opening which receives the insert.
  • the attachment of the tab tothe insert in the proper position is a time consuming manual operation.
  • the present invention improves upon the above described system in providing a plurality of insert-tab units each having thetab pre-attached to the insert head in the proper position with its apertures registering with the potting notches in the inserthead.
  • the adhesive covering sheet previously used is dispensed with.
  • the adhesive is one that retains its tackiness over an extended period of time.
  • the insert-tab units are assembled in a column of a common axis and are retained in such assembly by a wire stringer of hairpin form having opposed parallel legs extending through the tab apertures and the insert notches.
  • the column is enclosed in a plastic casing which protects the adhesive coatings from becoming fouled by atmospheric dust, lint, etc. and which inhibits drying of the coatings.
  • a quick-opening pull thread is embodied in the casing for rapid opening of the package.
  • the general object of this invention is to provide a packaged assembly of insert-tab units ready for instant use upon opening the package, eliminating the necessity for attachment of the tabs to the inserts by the workman at the time of installation of the inserts in a panel.
  • FIG. 1 is a side view of a package embodying the invention, the ends of the package being broken away and shown in section;
  • FIG. 2 is a fragmentary front elevational and sectional view of the same
  • FIG. 3 is a cross-sectional view thereof on an enlarged scale, taken on line 3-3 of FIG. 1;
  • FIG. 4 is an axial sectional view of one of the inserttab units, on an enlarged scale, its insertion into a sandwich panel being indicated in phantom;
  • FIG. 5 is a cross-sectional view of the insert installed in a sandwich panel.
  • FIG. 4 a plurality of insert tab units A (FIG. 4) assembled in a column 13 (FIG. 1) which is enclosed in a casing C for handling, shipment and storage until ready for use.
  • the insert of unit A is adapted for installation in a sandwich panel D. (FIG. 5).
  • Each insert-tab unit A comprises a fastener insert and an applicator tab having a central area adhesively attached to insert 10.
  • Insert 10 is such as is shown, for example, in the aforesaid Rohe' Pat. No. 3,271,498, having an internally threaded nut body 11, a head 12 with injection ports or notches 13 at one end, and a blind head 14 with flatted sides at its other end.
  • Tab 10 is of the type shown in Phelan Pat. No. 3,510,916 with the exception that it does not have an adhesive-covering sheet and its adhesive is of a type that will remain tacky for an extended period of time.
  • the tab comprises a circular disc body 21 having a pair of apertures 22 to register with the potting apertures 13 of insert head 12, a handle 23 at one side, and a coating 26 of adhesive covering the face of disc body 21 but not of handle 23.
  • the diameter of disc body 21 is greater than that of insert head 12 to an extent such as to leave a broad ring of adhesive exposed beyond the" periphery of head 12, for attachment to the outer face of a skin 27 of panel D, around the margin of a hole 28 in the'panel which receives the insert, the head 12 of the insert being fitted in the mouth of the hole 28 in skin 27.
  • the tab functions to hold the insert 10 in proper position in hole 28 during injection of potting material from a gun nozzle 29 (FIG. 4) through apertures 22 and 13 into hole 28 which becomes filled with the compound to provide an anchoring body 30 (FIG. 5) when the compound becomes set.
  • Column B is composed of a plurality of the insert-tab units A retained in coaxial assembly by a wire stringer of hair pin form having spaced parallel legs 36 threaded through the tab apertures 22, straddling the flat sides of inset heads 14, and engaged in the insert head notches 13.
  • the free ends of stringer legs 36 are received in apertures in a spacer yoke 37 of C-shape, having an arched web portion overhanging the ends of the legs.
  • Casing C comprises a tubularbody 40 of plastic or equivalent film material substantially impervious to air and moisture, preferably heat-sealable, shrunk around the column B, with sealed ends, one engaged against the bridging end of stringer 35 and the other engaged against the arched portion of spacer yoke 37.
  • An opener thread 41 has one end anchored at 42 to the bridging end of stringer 35, is extended along the wall 40 of easing C between the inner surface thereof and the edges of tabs 20, and has its other end 43 projected through the sealed end of easing C and adapted to be grasped to rip open the casing wall 40, full length, allowing the column E to be removed.
  • the insert-tab units A are then released by removing the spacer yoke 37 and sliding the units A into a suitable tray from which the workman removes them one by one and inserts them into panel holes 28.
  • a plurality of panel inserts each having a fastener body and a head at one end of said body in the form of a radially projecting flange having circumferentially spaced appertures for injection of potting compound into a hole in a sandwich panel so as to surround the insert body received in said hole;
  • a plurality of installation holders each comprising a thin disc of larger diameter than said head, said disc having on one of its faces a central area adjoining the outer face of the head of a respective i insert and a peripheral area which projects beyond said head for attachment to the outer face of the sandwich panel around the hole therein, for holding said insert in correct position in said hole during-injection and hardening of the potting compound, said disc having apertures registering with the apertures of the insert head;
  • a layer of adhesive attaching said central area of said disc to the opposed face of said head, said adhesive being such as to retain said disc in position on said head during handling and installation including said holding, and such as to permit release of said holder from said head when the insert is secured in 7 said hole;
  • an adhesive coating of lasting tackiness on said peripheral area operable to effect said attachment to the panel and to permit release of the holder therefrom when the insert is secured to the panel;
  • inserts and holders being arranged in a coaxial column of insert-holder units in which the inserts and holders are in alternating arrangement and their respective apertures are aligned;

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Insertion Pins And Rivets (AREA)
  • Connection Of Plates (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Packages (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Panels For Use In Building Construction (AREA)
  • Closing Of Containers (AREA)
US00073813A 1970-09-21 1970-09-21 Sandwich panel insert and installation holder assembly and method of handling Expired - Lifetime US3722671A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US7381370A 1970-09-21 1970-09-21

Publications (1)

Publication Number Publication Date
US3722671A true US3722671A (en) 1973-03-27

Family

ID=22115953

Family Applications (1)

Application Number Title Priority Date Filing Date
US00073813A Expired - Lifetime US3722671A (en) 1970-09-21 1970-09-21 Sandwich panel insert and installation holder assembly and method of handling

Country Status (5)

Country Link
US (1) US3722671A (https=)
JP (1) JPS5030515B1 (https=)
BE (1) BE772807A (https=)
FR (1) FR2108305A5 (https=)
GB (1) GB1328429A (https=)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4114329A (en) * 1974-11-14 1978-09-19 Artur Fischer Anchoring arrangement kit
US4514126A (en) * 1980-01-18 1985-04-30 James Knowles Corrugated staple
US4909692A (en) * 1988-12-12 1990-03-20 Hendren Stephen R Electrical receptacle mounting spacers
US5568862A (en) * 1995-03-27 1996-10-29 Tee-Lok Corporation Package for wood connectors and method for forming same
US6153035A (en) * 1999-02-12 2000-11-28 The Boeing Company Method and apparatus for securing a thermoplastic insert within a sandwich panel
US6161697A (en) * 1999-02-12 2000-12-19 The Boeing Company Apparatus for dispensing sandwich panel inserts
US6176383B1 (en) * 1999-08-24 2001-01-23 3088081 Canada Inc. Biological specimen cassette
US6241445B1 (en) 2000-03-31 2001-06-05 Illinois Tool Works Inc Asymmetric bevel corrugated fastener
US20110135419A1 (en) * 2009-12-08 2011-06-09 Alessandro Carbonelli Anchor Bolt Installation System

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PT2781762T (pt) 2013-03-20 2019-01-30 Ruag Schweiz Ag Estrutura de suporte leve, método para produção de uma estrutura de suporte leve, painel sanduíche composto e método para produção de um painel sanduíche composto
PT3339659T (pt) 2013-03-20 2022-03-29 Ruag Schweiz Ag Peça de inserção para aplicação de carga e/ou ancoragem de vários componentes respetivamente num painel sanduíche composto e método de produção de uma estrutura leve de suporte compreendendo o mesmo

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4114329A (en) * 1974-11-14 1978-09-19 Artur Fischer Anchoring arrangement kit
US4514126A (en) * 1980-01-18 1985-04-30 James Knowles Corrugated staple
US4909692A (en) * 1988-12-12 1990-03-20 Hendren Stephen R Electrical receptacle mounting spacers
US5568862A (en) * 1995-03-27 1996-10-29 Tee-Lok Corporation Package for wood connectors and method for forming same
US6153035A (en) * 1999-02-12 2000-11-28 The Boeing Company Method and apparatus for securing a thermoplastic insert within a sandwich panel
US6161697A (en) * 1999-02-12 2000-12-19 The Boeing Company Apparatus for dispensing sandwich panel inserts
US6176383B1 (en) * 1999-08-24 2001-01-23 3088081 Canada Inc. Biological specimen cassette
US6241445B1 (en) 2000-03-31 2001-06-05 Illinois Tool Works Inc Asymmetric bevel corrugated fastener
US20110135419A1 (en) * 2009-12-08 2011-06-09 Alessandro Carbonelli Anchor Bolt Installation System
US8585335B2 (en) * 2009-12-08 2013-11-19 Alessandro Carbonelli Anchor bolt installation system

Also Published As

Publication number Publication date
FR2108305A5 (https=) 1972-05-19
GB1328429A (en) 1973-08-30
DE2146296B2 (de) 1975-08-07
DE2146296A1 (de) 1972-03-23
JPS5030515B1 (https=) 1975-10-01
BE772807A (fr) 1972-01-17

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