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
  • F16B19/00—Bolts without screw-thread; Pins, including deformable elements; Rivets
  • F16B19/04—Rivets; Spigots or the like fastened by riveting
  • F16B19/08—Hollow rivets; Multi-part rivets
  • F16B19/10—Hollow rivets; Multi-part rivets fastened by expanding mechanically
• • 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
  • F16B11/00—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding
  • F16B11/006—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding by gluing
• • 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
  • F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
  • F16B13/14—Non-metallic plugs or sleeves; Use of liquid, loose solid or kneadable material therefor
  • F16B13/141—Fixing plugs in holes by the use of settable material
  • F16B13/143—Fixing plugs in holes by the use of settable material using frangible cartridges or capsules containing the setting components

Definitions

• the present case is concerned with the fastener art as well as with the art of quicksetting adhesives.
• the present invention provides a fastener which can be a safe means for handling the quickset adhesives.
• the present invention can also be used to mechanically and adhesively secure a fastener to a substrate and the invention can be characterized as a lightweight adhesively securable fastener.
• an adhesively securable fastener comprising: a body having an opening; an adhesive positioned within said body; and registering with the opening of the body, a plunger means for applying pressure to said adhesive thereby adhesively securing the fastener to a desired substrate.
• the invention can be characterized as an adhesively securable fastener for securing same to a substrate comprising; A. a body;
• the securing means such that upon engaging the body and the securing means, the adhesive contacts the substrate and the body or securing member thereby adhering same and the deformable member mechanically fastens the body to it and the substrate.
• the adhesive is a quicksetting ' adhesive such as an anaerobic adhesive or a cyanoacrylate type.
• FIG. 1 is a schematic view of the adhesively securable fastener of the present invention in a side sectional view;
• Fig. 2 is the fastener of Fig. 1 in an assembled fashion immmediately adjacent a substrate;
• Fig. 3 is an alternative embodiment of the fastener of Fig. 2 in an engaged condition
• Fig. 4. is a bottom view of the fastener of Fig. 1
• Fig. 5 is a side perspective view of the plunger means useful in the fastener of the present invention
• Fig. 6 is a bottom view of the fastener of Fig. 3 taken along the line 6-6;
• Fig. 7 is an alternative embodiment of the fastener of the present invention inserted within a hole of a substrate to which the fastener is to be applied, said fastener showing deflectable tabs;
• Fig. 8 shows the fastener of Fig. 7 in an engaged condition;
• Fig. 9 shows an alternative embodiment of the plunger means useful in the fastener of the present invention.
• Fig. 10 shows the plunger means of Fig. 9 in engagement in the fastener of the present invention
• Fig. 11 shows an alternative embodiment of the body of the fastener of the present invention
• Fig. 12 is an alternative embodiment of the present invention showing a diaphragm holding the adhesive mass in the body of the fastener of the present invention
• Fig. 13 is an alternative embodiment of the fastener of
• OMPI the present invention having a frangible stem on a plunger means
• Fig. 14 shows an alternative means of holding the adhesive mass useful in the fastener of the present invention
• Fig. 15 is an alternative means for a plunger useful in the fastener of the present invention.
• Fig. 16 is an alternative means for the body useful in the fastener of the present invention
• Fig. 17 shows the combination of the fastener, the adhesive and the body of Figures 14, 15 and 16 assembled;
• Fig. 18 shows the fastener of Fig. 17 in an engaged position
• Fig. 19 is an alternative embodiment of the fastener of the present invention in the unengaged condition
• Fig. 20 shows the fastener of Fig. 19 in an engaged condition.
• Fig. 21 is an alternative embodiment of the fastener of the present invention in the unengaged condition;
• Fig. 22 is the fastener of Fig. 21 engaging in the engaged condition;
• Fig. 23 is an alternative embodiment of the fastener of the present invention in the unengaged condition;
• Fig. 24 is Fig. 23 taking along lines 24-24;
• Fig. 25 is the fastener of Fig. 23 in the engaged condition.
• the body of the fastener of the present invention may be comprised of any metal or wood or plastic. If a metal were employed, a sheet metal of appropriate design would be used, such as aluminum, iron, such as steel or galvanized iron, zinc, magnesium, titanium and alloys thereof. If a plastic were employed, any of the well known plastics may be employed such as those described in Modern Plastics Encyclopedia 1975/1976, published by McGraw Hill, Inc.
• OMPI ° Suitable plastics may be acrylo nitrile-butadiene-styrene (ABS), and acrylic material, an epoxy material, a phenolic, a melamine, a nylon, a polycarbonate, such as Lexan (trademark of General Electric Company), olefins, such as polyethylene, polypropylene, ethylene propylene diene monomer ( ⁇ PDM), polyvinyl chloride, Suryl (trademark of DuPont for an ionomer) and the like. It is to be appreciated that the plastics may be reinforced with fillers, fibers, such as glass fiber and the like.
• the adhesive that may be employed in the present application is any quicksetting adhesive well known in the art.
• Suitable adhesives are cyanoacrylates, anaerobics, hot melt adhesives, pressure sensitive adhesives, and other adhesives that can cure quickly. It is to be appreciated that an adhesive may not be quicksetting at ambient temperature but through the application of heat may set quickly. Such adhesives fall within the meaning of a quicksetting adhesive as used in the present application.
• Various adhesives may be used such as those described in the Handbook of Adhesive Bonding edited by Charles V. Eagle, published by McGraw Hill, Inc. , and also Applied Polymer Science edited by J. Kenneth Craver and Roy W. Tess, published by the American Chemical Society, 1975, at pages 473 and following, which are hereby incorporated by reference.
• a particularly preferred class of adhesive are those that are micro-encapsulated. See “Advances in Micro-Encapsulation Techniques", Flinn, et al, Battelle Technical Review, 1967, as well as Chemical Engineering, December 4, 1967, page 77 and following, hereby incorporated by reference.
• the adhesive that is useful in the present invention is generally an adhesive mass that contains sufficient adhesive to permit securing of the fastener to the substrate.
• the adhesive mass may be of a tacky or non-tacky nature.
• One advantage of utilizing the micro-encapsulated adhesives is that a variety of materials may be employed,
• U.S. Patent 3,825,640 indicates that 5 capsules can be manufactured in accordance with the techniques of interfacial polymerization (U.S. 3,432,437) or phase separation (U.S. 3,415,758; U.S. 2,800,457) or solvent exchange (U.S. 3,516,943) or meltable dispersion (U.S. 3,161,602) or mechanical methods of film impingement (U.S.
• a variety of classes of adhesives may be encapsulated. Some of the more familiar materials are epoxides, urethanes, unsaturated polyesters, alkyds and other resins. Liquid adhesive, such as a polythiol with an encapsulated curing agent, may be
• U.S. 3,694,243 has a meltable adhesive clinging in 30 a dust-like fashion about encapsulated adhesives, thereby permitting a variety of adhesives to be employed.
• the wall surrounding the adhesives would be a gelatin or a gum arabic.
• U.S. 3,813,259 teaches resin coated encapsulated elastomeric crumbs which contain various rubber materials.
• a particularly preferred technique is the utilization of encapsulated anaerobic adhesives. Means for encapsulating said anaerobic adhesives are taught in U.S. 3,814,156; 3,826,673 and 3,826,756, hereby incorporated by reference.
• a pressure sensitive anaerobic adhesives composition is taught in U.S. 3,996,308, wherein the accelerator therefor is encapsulated.
• the adhesive mass may be any one of the techniques described above, another alternative would be to employ plastic bubbles or a hermetically sealed adhesive as the adhesive within the elongated chamber as described above. In this way the capsule or the plastic bubble containing the adhesive can be ruptured as described below.
• anaerobic adhesives could also be employed in the present application, especially micro-encapsulated anaerobic adhesives where the various components of the anaerobic system are present in a number of plastic bubbles or capsules.
• the anaerobic composition which is the polymerizable monomer may be in one plastic bubble with the other plastic bubbles containing the polymerization inhibitor, a polymerization initiator, a polymerization accelerator, and a plasticizer and the like.
• Fig. 1 is a three-part fastener showing an elongated body 10, a plunger 12 and an adhesive mass 14. These elements are assembled in Fig. 2 where four deflectable tabs 16 retain the adhesive mass 14 in the body beneath the plunger means 12.
• the wall of the body is relieved or weakened adjacent each tab as at 18, to allow the tabs to be pushed outwardly, pivoting about the connecting point 20 as the plunger is forced downwardly as by a tool or ram 22 during application of the fasteners to a substrate 24; the lower edge of the body may be provided with serrations 26 to provide spaces at the panel surface 24 through which the adhesive may be forced at 28 to form the joint.
• the plunger may have a shoulder 30 abutting the upper end of body 10 to hold the body against the substrate surface 24.
• the plunger 22 is pushed through the shoulder to abut the plunger 12 and depress the capsule 14 which is punctured by the edge of the tab 16.
• the plunger 12 may have somewhat pointed end 32 for facilitating puncture of the adhesive mass.
• the action of the plunger 12 against the tab 16 or the serrations 26 can be compared to the action of a plunger against an anvil means.
• anvil is meant any point, flat or curved surface on which the adhesive can be depressed to assist in applying or spreading the adhesive and its components from the body 10 to the substrate 24.
• the body 10 may also be constructed for facilitating securement of another part thereto.
• the exterior of the body spaced from the opening 27 thereof may be threaded to receive a nut or a bolt, or it may be provided with a laterally projecting peripheral shoulder.
• the plunger 12 may have a greater length so that upon being fully depressed it fills the cavity within the body.
• Fig. 7 a modification is shown wherein the fastener body 10a extends through registering holes in panels 24a and 24b and the body has a peripheral flange 11 overlying one of the panels.
• the bottom of the body is closed as at 13 and the adhesive containing capsule 14 is disposed to be punctured by sharp projections 15 on the plunger 12a.
• the capsule is fractured and adhesive backflows through peripheral grooves 17 in the plunger and radially outwardly through openings 19 in the body to admit adhesive to the joint.
• the tabs 16a swing out locking the fastener in place with the adhesive sealing the opening and locking the fastener therein as at 28a.
• a hermetically sealed adhesive chamber 14a is shown as an integral part of the fastener body 10a.
• a diaphragm 40 of Fig. 12 divides the body cavity above the adhesive 42. The diaphragm is punctured or displaced downwardly as the plunger is depressed and the resulting action is shown in Fig. 8.
• Fig. 12 shows the fastener ready to be inserted into a hole in a panel similar to that of Fig. 7.
• Figs. 13-18 show a fastener in which the plunger 12b is pulled rather than pushed, the same having a stem 44 which may, if desired, be frangibly connected to the plunger so that it will break therefrom after the plunger has been fully drawn into the body.
• the body 10b has a flange lib with holes 46 just above it as shown in Fig. 16 to allow escape of adhesive between the flange and the surface of a panel.
• the adhesive may be contained in a donut 14b.
• the tabs 16b swing out as the plunger is drawn into the body and adhesive may backflow,
• FIGs 19 and 20 there is an alternative to Figures 7 and 8 wherein the plunger 12 having a lip 60 is retained within the elongated body 10 which is positioned between panels 62 and 63.
• An integrally molded portion 64 of the fastener has a recessed area 65 in which the plunger lip 60 may be inserted.
• pressure is applied on the plunger 12 breaking the adhesive mass 14 by means of indented portion 68 of the elongated body. Said adhesive then breaks from its capsule forming a seal 28 and securing the panels.
• sheets 62 and 63 may be a lock and sheet metal respectively.
• the indented portion 68 would be constructed to permit alignment of the tip 61 of the plunger therewith in a fashion to facilitate releasing the adhesive and yet have sufficient adhesive present for seal with the substrates 62 and 63.
• Figures 21 and 22 are figures depicting an alternative embodiment of the fastener 200 of the present invention, having a body portion 201, having a top portion 202 and a tip portion 204.
• a deformable securing member 206 is assembled such that deformable legs 208 and 208' are positioned near the tip 204 of the body.
• the quicksetting adhesive is applied to the under portion 210 of the top of the body as well as to the exterior portion 212 of the body.
• the general configuration of Fig. 21 is similar to a push rivet generally available in the trade.
• the fastener 200 fits within an aperture (not shown) of the substrate 214 and 214' .
• the substrate is mechanically held in position by the deformation of the deformable member by virtue of the gripping action of the fingers 216 against the body and the substrate being held in position by the deformed securing member.
• the adhesive likewise secures the entire fastener by the top portion 218 of the securing member coming in contact with section 210 of the top of the body.
• the adhesive that is on the body itself at position 212 comes in contact with the securing member at that location as well.
• body member 202 is comprised of a plastic such as polystyrene or nylon but could be any of the materials recited above.
• FIG. 23-25 An alternative embodiment of the fastener of the present invention is depicted in Figures 23-25.
• the fastener 220 is comprised of the body member 222 having a top portion 224 with an underside thereof 226.
• the deformable securing member 228 is comprised of deformable sections 230 and 230' likewise having tips 232 and 232'.
• the operation of the embodiment in Figures 23-25 are substantially the same as that depicted in Figures 21-22 such that the substrates 234 and 234' are secured in position by the deformable securing member mechanically holding the substrate in position against the bottom portion 226 of the body member.
• the fingers 232 and 232' likewise engage a portion of the body member as shown in the drawing.
• the quicksetting adhesive 227 would be located on the body member at position 226 as well as at portion 238. As can be seen in Fig. 25, when the substrate is retained in the state that the fastener is in the engaged condition the adhesive located at position 226 of the body engages the substrates 234 and 234' and the adhesive likewise engages at the aperture (not shown) in the substrate at position 238.
• FIG. 24 A cross section of the interior portion of the fastener of Fig. 23 is shown in Fig. 24 with .a view taken along lines 24-24 of Fig. 23.

Landscapes

• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Adhesives Or Adhesive Processes (AREA)
• Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)

Priority Applications (5)

Applications Claiming Priority (1)

Publications (1)

Family

ID=22174827

Family Applications (1)

Country Status (5)

Cited By (5)

Families Citing this family (5)

Citations (4)

Family Cites Families (1)

• 1983
  • 1983-01-31 DE DE19833390453 patent/DE3390453C2/de not_active Expired - Lifetime
  • 1983-01-31 GB GB08422834A patent/GB2143919B/en not_active Expired
  • 1983-01-31 BR BR8307685A patent/BR8307685A/pt not_active IP Right Cessation
  • 1983-01-31 JP JP83500891A patent/JPS60500679A/ja not_active Withdrawn
  • 1983-01-31 WO PCT/US1983/000133 patent/WO1984002960A1/en active Application Filing

Patent Citations (4)

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