US3286578A - Plastic nut with metallic thread engaging inserts - Google Patents
Plastic nut with metallic thread engaging inserts Download PDFInfo
- Publication number
- US3286578A US3286578A US469188A US46918865A US3286578A US 3286578 A US3286578 A US 3286578A US 469188 A US469188 A US 469188A US 46918865 A US46918865 A US 46918865A US 3286578 A US3286578 A US 3286578A
- Authority
- US
- United States
- Prior art keywords
- stud
- nut
- inserts
- bore
- cylindrical wall
- 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
Links
- 239000004033 plastic Substances 0.000 title claims description 15
- 229920003023 plastic Polymers 0.000 title claims description 15
- 229920000914 Metallic fiber Polymers 0.000 title description 2
- 229910052751 metal Inorganic materials 0.000 claims description 24
- 239000002184 metal Substances 0.000 claims description 24
- 239000000463 material Substances 0.000 claims description 13
- 208000011616 HELIX syndrome Diseases 0.000 claims 1
- 238000000465 moulding Methods 0.000 description 14
- 238000000354 decomposition reaction Methods 0.000 description 8
- 150000002739 metals Chemical class 0.000 description 7
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 4
- 238000005868 electrolysis reaction Methods 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 229910001361 White metal Inorganic materials 0.000 description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000010969 white metal Substances 0.000 description 3
- 229910052725 zinc Inorganic materials 0.000 description 3
- 239000011701 zinc Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 229910052793 cadmium Inorganic materials 0.000 description 2
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 2
- 239000011152 fibreglass Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 229920005992 thermoplastic resin Polymers 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- -1 ferrous metals Chemical class 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
Images
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
- F16B5/12—Fastening strips or bars to sheets or plates, e.g. rubber strips, decorative strips for motor vehicles, by means of clips
- F16B5/128—Fastening strips or bars to sheets or plates, e.g. rubber strips, decorative strips for motor vehicles, by means of clips a strip with a C-or U-shaped cross section being fastened to a plate such that the fastening means remain invisible, e.g. the fastening being completely enclosed by the strip
-
- 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
- Y10S411/918—Threadless nut
-
- 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
- Y10S411/924—Coupled nut and bolt
- Y10S411/947—Elastic-gripping action
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/30—Trim molding fastener
- Y10T24/301—Trim molding fastener having externally threaded attaching means
- Y10T24/302—Trim molding fastener having externally threaded attaching means and laterally extending biasing appendage
Definitions
- the devices of the invention provide fastening and attaching means which are not subject to the usual causes of decomposition such as rusting, oxidation, and electrolysis in the presence of moisture, salts and acids.
- the devices themselves constitute insulating members relative to metal items which they inter-connect especially were electrolysis is a factor in the decomposition of the metal parts, the fastening means, and the attaching means.
- the panel on which the molding is mounted may be ferrous metal and it may be suitable protectively and decoratively coated.
- the molding may be ferrous metal, white metal, stainless steel, aluminum, etc.
- the molding may be plated with nickel, chromium, etc.
- the studs or bolts may he ferrous, white metal, and may be coated with zinc, cadmium or other metals
- the nuts or fasteners may be ferrous metal, white metal, aluminum, etc., and they also may be coated with zinc, cadmium or other metals.
- Automobile bodies and trim provide an aggravated example of this decomposition especially were the roads are salted in winter, where gravel roads are dust-treated with hygroscopic salt material, in salt-air at sea coasts, and in industrial areas having air-borne salts and acids. Even in the absence of these conditions, the mere presence of moisture in the presence of unlike metals causes decomposition at a rapid rate.
- a more detailed object is to achieve the foregoing by embedding a metallic thread-engaging member in a plastic body and forming the latter with a bore smaller than the stud it is to receive so as to improve the insulating effect of the plastic.
- FIGURE 1 is a cross-sectional view of a panel and molding with the attaching means and fastener means of the invent-ion securing the molding and panel together showing a cross-plate having a stud and a nut threaded on the stud.
- FIG. 2 is a fragmentary cross-sectional view of the assembly shown in FIG. 1 taken on the line 22 thereof.
- FIG. 3 is an enlarged plan view of the nut of FIG. 1.
- FIG. 4 is a cross-sectional view of the device of FIG. 3 taken on line 4-4 thereof.
- FIG. 5 is a side elevational view of a modified attaching and fastener means.
- FIG. 6 is a face elevational view of the attaching means and nut fastener means seen in FIG. 5.
- the novel attaching and fastener devices disclosed therein are preferably made of nonmetallic materials such as compositions generally known as plastics.
- plastics include fiberglass, thermosetting resins, and thermoplastic resins of various types, strength and characteristics. These materials are insulators rather than conductors of an electrical current. Thus in any electric situation the part formed of this material interrupts the flow of current and thus insulates the adjacent metal parts. This interrupts the electrolytic action.
- these materials are not subject to the type of decomposition usually found in metals such as rusting of ferrous metals and the oxidation of aluminum, zinc, titanium, etc.
- These plastic materials also eliminate the presence of several types of unlike metals in the combination of panels, moldings, attaching means and fasteners, This reduces the potential of the association of unlike metals.
- a cross-plate 30 has a stud 31 and a shoulder 32.
- the shoulder has an aperture or opening 33.
- the crossplate 30, stud 31, shoulder 32 and aperture 33 may be molded out of fiberglass, thermoplastic resin or thermosetting resin.
- the foregoing parts are made of relatively rigid material.
- An arm 34- of relatively flexible synthetic resin material is inserted in the aperture 33 of the shoulder 32 and depends therefrom. The flexibility of the arm 34 gives its spring-like characteristics. When bent from a straight position to the posit-ion seen in FIGS.
- the flexible arm 34 is spring loaded and exerts a rotating or turning influence on the cross-plate 30 to hold it in position relative to a molding 35 which locks the crossplate 30 behind a flange 36 and a flange 37 on the molding 35.
- the arm 34 and cross-plate 30 or other member may be inter-connected in any suitable manner. They may be molded together if desired or mechanical securing means may be employed.
- the stud 31 is inserted through an opening in a panel 38.
- the stud 31 may have a nose 39 which is reduced in cross-section axially outwardly of the stud providing a lead portion on the stud for a self-threading nut 44.
- the nut has a central aperture formed 'by an interior wall of suitable or desirable shape.
- the nut body is made of plastic and may be any shape.
- One or more metal inserts 45, 45A are embedded in the nut body and their ends constitute the thread-engaging portion of the nut 44.
- the inserts 45, 45A may be somewhat rectangular in cross-section and positioned with their lateri'al axes on an angle relative to the transverse plane of the body of the nut 44 as shown in FIG. 4. This may be considered the helix angle of the thread portion of the nut 44.
- the helix angle of the nut therefore may be established by the inclination of the side-to-side axes of the metal inserts.
- the insulating action of the nut is improved by forming the bore of the nut with a smaller diameter than the major diameter of the stud 31, the major diameter being the actual diameter of an unthreaded stud or the largest diameter of a threaded stud.
- the major diameter being the actual diameter of an unthreaded stud or the largest diameter of a threaded stud.
- the metal inserts 45, 45A have parts which project radially inwardly toward the axis of the bore to engage the stud 31.
- the innermost edges of these inserts are spaced from the bore axis by an amount less than oneh-alf the major diameter of the stud so that these edges either engage preformed threads on the stud or cut threads on an unthreaded stud. As thus positioned, these inner edges may project inwardly for a short distance beyond the wall 47. On the other hand, these inner edges may terminate at or even short of the wall 47. In the latter case, the expansion of the bore exposes the tips of the inserts for engagement with the stud.
- inserts 45A which are completely embedded in the plastic body permits the easy formation of the nut by a molding operation since there is no need to protect projecting ends of the insert while the nut is being molded.
- the expansion of the bore of the nut 44 may be facilitated by forming one or more longitudinal grooves 47A in the wall defining said bore.
- these grooves 47A are disposed between adjacent inserts and provide spaces for the flow of plastic during expansion of nut 44 so that the expansion does not depend upon deformation of essentially the entire nut body.
- nut 44 may be molded integrally with the plate 30' as shown in FIGS. 5 and 6. In such a case, the nut mates with a separate stud (not shown) which completes the fastening combination. In all other respects, the construction is the same as indicated by the same but primed reference characters.
- a nut adapted for use with a stud having a predetermined major diameter said nut comprising a body of synthetic resinous plastic material having a bore defined by an internal cylindrical wall, the diameter of said bore being less than said major diameter of said stud, and a plurality of separate, straight metal inserts within the body of said nut circumferentially and axially spaced therein and each extending in a generally radial direction with respect to the axis of said internal cylindrical wall, each of said inserts having a thread-engaging inner end portion positioned adjacent said internal cylindrical wall and being spaced from said axis by a distance equal to less than one-half said major diameter of said stud but, by a distance at least equal to the spacing of said internal wall from said axis, the inner end position of each insert being formed as a cutting edge whereby said internal wall defining said bore expands as the stud is threaded into said bore and said inner end of each insert cuts a thread on the stud, the said inner ends of said inserts being generally rectangular in transverse
- each insert is completely embedded within the plastic body of the nut with the inner end of certain of said inserts being oppositely disposed and normally positioned flush with the surface of said internal cylindrical wall, expansion of said nut when being applied to said stud exposing said inner end of each insert to permit engagement thereof with said stud.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Plates (AREA)
Description
1966 T. E. FIDDLER 3, 86,578
PLASTIC NUT WITH METALLIC THREAD ENGAGING INSERTS Original F'iled Nov. 4, 1964 47 424,4 My; has...
CA TTQRMQY United States Patent r 2 Claims. (Cl. 8536) This application is a division of my copending application Serial No. 408,995, filed November 4, 1964, and relates to fasteners and, in particular, to molded nut bodies made of synthetic resin or plastic material and having metal insert thread members, and to attaching means such as bolts, studs, and cross-heads suitable for use with the novel nuts.
The devices of the invention provide fastening and attaching means which are not subject to the usual causes of decomposition such as rusting, oxidation, and electrolysis in the presence of moisture, salts and acids. The devices themselves constitute insulating members relative to metal items which they inter-connect especially were electrolysis is a factor in the decomposition of the metal parts, the fastening means, and the attaching means.
The mounting of metal trim moldings to metal panels in automobiles, appliances, and other items in a suitable example of an environment illustrating the utility of the invention. In such assemblies, the panel on which the molding is mounted may be ferrous metal and it may be suitable protectively and decoratively coated. The molding may be ferrous metal, white metal, stainless steel, aluminum, etc. The molding may be plated with nickel, chromium, etc. In the prior art, the studs or bolts may he ferrous, white metal, and may be coated with zinc, cadmium or other metals, and the nuts or fasteners may be ferrous metal, white metal, aluminum, etc., and they also may be coated with zinc, cadmium or other metals.
When the molding, panel studs or bolts, and nuts or fasteners of the prior art are assembled they form a group of many unlike metals which in the presence of moisture, salt, acid, etc., set up electrolysis and this rapidly removes the protective coatings from the parts. This leaves the parts unprotected and direct rust and oxidation then takes place while electrolysis continues resulting in the rapid decomposition of all parts.
Automobile bodies and trim provide an aggravated example of this decomposition especially were the roads are salted in winter, where gravel roads are dust-treated with hygroscopic salt material, in salt-air at sea coasts, and in industrial areas having air-borne salts and acids. Even in the absence of these conditions, the mere presence of moisture in the presence of unlike metals causes decomposition at a rapid rate.
With the foregoing in view, it is a primary object of the invention to provide an improved nonmetallic attaching means and nonmetallic fastener means for moldings, panels, and other parts to neutralize aggravated decomposition of an attaching and fastener means and to neutralize aggravated decomposition of the panels, moldings, and other parts themselves adjacent the fastening and attaching means.
A more detailed object is to achieve the foregoing by embedding a metallic thread-engaging member in a plastic body and forming the latter with a bore smaller than the stud it is to receive so as to improve the insulating effect of the plastic.
These and other objects of the invention will become apparent by reference to the following description of the novel attachment and fastener means embodying the in- 3,285,578 Patented Nov. 22, 1965 vention taken in connection with the accompanying drawing in which:
FIGURE 1 is a cross-sectional view of a panel and molding with the attaching means and fastener means of the invent-ion securing the molding and panel together showing a cross-plate having a stud and a nut threaded on the stud.
FIG. 2 is a fragmentary cross-sectional view of the assembly shown in FIG. 1 taken on the line 22 thereof.
FIG. 3 is an enlarged plan view of the nut of FIG. 1.
FIG. 4 is a cross-sectional view of the device of FIG. 3 taken on line 4-4 thereof.
FIG. 5 is a side elevational view of a modified attaching and fastener means.
FIG. 6 is a face elevational view of the attaching means and nut fastener means seen in FIG. 5.
Referring now to the drawings wherein like numerals refer to like and corresponding parts throughout the several views, the novel attaching and fastener devices disclosed therein are preferably made of nonmetallic materials such as compositions generally known as plastics. These materials include fiberglass, thermosetting resins, and thermoplastic resins of various types, strength and characteristics. These materials are insulators rather than conductors of an electrical current. Thus in any electric situation the part formed of this material interrupts the flow of current and thus insulates the adjacent metal parts. This interrupts the electrolytic action. Also, these materials are not subject to the type of decomposition usually found in metals such as rusting of ferrous metals and the oxidation of aluminum, zinc, titanium, etc. These plastic materials also eliminate the presence of several types of unlike metals in the combination of panels, moldings, attaching means and fasteners, This reduces the potential of the association of unlike metals.
While plastic materials have found their way into industrial use on a wide scale, their use alone as nuts or other fastening means has not proven entirely successful due to the fact that they do not have sufficient resistance to shear stresses to provide sufficient strength in relatively small portions such as in threads. To overcome this limitation, metal inserts of suitable quality and shear strength have been used in conjunction with a plastic body. These inserts are constructed for cutting threads on unthreaded studs or for following threads on threaded bolt portions with suitable shear strength to provide adequate torque characteristics. In this regard, threadengaging as used herein shall include both cutting and following.
More particularly, the combination of components shown in (FIGS. 14 illustrate an example and use of the novel attaching means and fastening means of the invention. A cross-plate 30 has a stud 31 and a shoulder 32. The shoulder has an aperture or opening 33. The crossplate 30, stud 31, shoulder 32 and aperture 33 may be molded out of fiberglass, thermoplastic resin or thermosetting resin. The foregoing parts are made of relatively rigid material. An arm 34- of relatively flexible synthetic resin material is inserted in the aperture 33 of the shoulder 32 and depends therefrom. The flexibility of the arm 34 gives its spring-like characteristics. When bent from a straight position to the posit-ion seen in FIGS. 1 and 2, the flexible arm 34 is spring loaded and exerts a rotating or turning influence on the cross-plate 30 to hold it in position relative to a molding 35 which locks the crossplate 30 behind a flange 36 and a flange 37 on the molding 35. The arm 34 and cross-plate 30 or other member may be inter-connected in any suitable manner. They may be molded together if desired or mechanical securing means may be employed.
After the cross-plate 30 is secured relative to the molding 35, the stud 31 is inserted through an opening in a panel 38. In this connection, the stud 31 may have a nose 39 which is reduced in cross-section axially outwardly of the stud providing a lead portion on the stud for a self-threading nut 44. The nut has a central aperture formed 'by an interior wall of suitable or desirable shape. The nut body is made of plastic and may be any shape. One or more metal inserts 45, 45A are embedded in the nut body and their ends constitute the thread-engaging portion of the nut 44.
It will be noted that the inserts 45, 45A may be somewhat rectangular in cross-section and positioned with their lateri'al axes on an angle relative to the transverse plane of the body of the nut 44 as shown in FIG. 4. This may be considered the helix angle of the thread portion of the nut 44. The helix angle of the nut therefore may be established by the inclination of the side-to-side axes of the metal inserts.
In accordance with the present invention, the insulating action of the nut is improved by forming the bore of the nut with a smaller diameter than the major diameter of the stud 31, the major diameter being the actual diameter of an unthreaded stud or the largest diameter of a threaded stud. Thus, as the stud is threaded into the bore, the latter expands and, thereafter, the wall 47 grips the stud rather tightly. This protects the point of contact between the inserts 45, 45A and the stud from moisture and minimizes electrolytic action between these parts where a metal stud is used.
The metal inserts 45, 45A have parts which project radially inwardly toward the axis of the bore to engage the stud 31. The innermost edges of these inserts are spaced from the bore axis by an amount less than oneh-alf the major diameter of the stud so that these edges either engage preformed threads on the stud or cut threads on an unthreaded stud. As thus positioned, these inner edges may project inwardly for a short distance beyond the wall 47. On the other hand, these inner edges may terminate at or even short of the wall 47. In the latter case, the expansion of the bore exposes the tips of the inserts for engagement with the stud. The use of inserts 45A which are completely embedded in the plastic body permits the easy formation of the nut by a molding operation since there is no need to protect projecting ends of the insert while the nut is being molded.
If desired, the expansion of the bore of the nut 44 may be facilitated by forming one or more longitudinal grooves 47A in the wall defining said bore. Preferably, these grooves 47A are disposed between adjacent inserts and provide spaces for the flow of plastic during expansion of nut 44 so that the expansion does not depend upon deformation of essentially the entire nut body.
Instead of making the stud rigid with the plate 30, the
I claim as my invention:
1. A nut adapted for use with a stud having a predetermined major diameter, said nut comprising a body of synthetic resinous plastic material having a bore defined by an internal cylindrical wall, the diameter of said bore being less than said major diameter of said stud, and a plurality of separate, straight metal inserts within the body of said nut circumferentially and axially spaced therein and each extending in a generally radial direction with respect to the axis of said internal cylindrical wall, each of said inserts having a thread-engaging inner end portion positioned adjacent said internal cylindrical wall and being spaced from said axis by a distance equal to less than one-half said major diameter of said stud but, by a distance at least equal to the spacing of said internal wall from said axis, the inner end position of each insert being formed as a cutting edge whereby said internal wall defining said bore expands as the stud is threaded into said bore and said inner end of each insert cuts a thread on the stud, the said inner ends of said inserts being generally rectangular in transverse cross section and being positioned with their lateral axes inclined relative to the transverse plane of the body of said nut, the lateral axes of said inserts being disposed along a common helix along the internal cylindrical wall defining the bore of the nut.
2. A nut as defined in claim 1 wherein each insert is completely embedded within the plastic body of the nut with the inner end of certain of said inserts being oppositely disposed and normally positioned flush with the surface of said internal cylindrical wall, expansion of said nut when being applied to said stud exposing said inner end of each insert to permit engagement thereof with said stud.
References Cited by the Examiner UNITED STATES PATENTS 88,886 4/1869 Mason 32 2,344,423 3/1944 Simmons 8536 2,393,323 1/1946 Hungerford et al 151-7 2,561,036 7/1951 Sodders 85-36 2,573,498 10/1951 Scott 85-82 2,904,820 9/1959 Flora 151-7 CARL W. TOMLIN, Primary Examiner.
EDWARD C. ALLEN, Examiner.
R. S. BRITTS, Assistant Examiner.
Claims (1)
1. A NUT ADAPTED FOR USE WITH A STUD HAVING A PREDETERMINED MAJOR DIAMETER, SAID NUT COMPRISING A BODY OF SYNTHETIC RESINOUS PLASTIC MATERIAL HAVING A BORE DEFINED BY AN INTERNAL CYLINDRICAL WALL, THE DIAMETER OF SAID BORE BEING LESS THAN SAID MAJOR DIAMETER OF SAID STUD, AND A PLURALITY OF SEPARATE, STRAIGHT METAL INSERTS WITHIN THE BODY OF SAID NUT CIRCUMFERENTIALLY AND AXIALLY SPACED THEREIN AND EACH EXTENDING IN A GENERALLY RADIAL DIRECTION WITH RESPECT TO THE AXIS OF SAID INTERNAL CYLINDRICAL WALL, EACH OF SAID INSERTS HAVING A THREAD-ENGAGING INNER END PORTION POSITIONED ADJACENT SAID INTERNAL CYLINDRICAL WALL AND BEING SPACED FROM SAID AXIS BY A DISTANCE EQUAL TO LESS THAN ONE-HALF SAID MAJOR DIAMETER OF SAID STUD BUT, BY A DISTANCE AT LEAST EQUAL TO THE SPACING OF SAID INTERNAL WALL FROM SAID AXIS, THE INNER END POSITION OF EACH INSERT BEING FORMED AS A CUTTING EDGE WHEREBY SAID INTERNAL WALL DEFINING SAID BORE EXPANDS AS THE STUD IS THREADED INTO SAID BORE AND SAID INNER ENDS OF EACH INSERT CUTS A THREAD ON THE STUD, THE SAID INNER ENDS OF SAID INSERTS BEING GENERALLY RECTANGULAR IN TRANSVERSE CROSS SECTION AND BEING POSITIONED WITH THEIR LATERAL AXES INCLINED RELATIVE TO THE TRANSVERSE PLANE OF THE BODY OF SAID NUT, THE LATERAL AXES OF SAID INSERTS BEING DISPOSED ALONG A COMMON HELIX ALONG THE INTERNAL CYLINDRICAL WALL DEFINING THE BORE OF THE NUT.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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US408995A US3345899A (en) | 1964-11-04 | 1964-11-04 | Synthetic resin fasteners |
US469188A US3286578A (en) | 1964-11-04 | 1965-07-02 | Plastic nut with metallic thread engaging inserts |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US408995A US3345899A (en) | 1964-11-04 | 1964-11-04 | Synthetic resin fasteners |
US469188A US3286578A (en) | 1964-11-04 | 1965-07-02 | Plastic nut with metallic thread engaging inserts |
Publications (1)
Publication Number | Publication Date |
---|---|
US3286578A true US3286578A (en) | 1966-11-22 |
Family
ID=27020463
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US408995A Expired - Lifetime US3345899A (en) | 1964-11-04 | 1964-11-04 | Synthetic resin fasteners |
US469188A Expired - Lifetime US3286578A (en) | 1964-11-04 | 1965-07-02 | Plastic nut with metallic thread engaging inserts |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US408995A Expired - Lifetime US3345899A (en) | 1964-11-04 | 1964-11-04 | Synthetic resin fasteners |
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US (2) | US3345899A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3352194A (en) * | 1966-04-05 | 1967-11-14 | Ind Deivces Inc | Elastic safety nut |
US3388627A (en) * | 1966-05-13 | 1968-06-18 | George A. Tinnerman | Composite fastener assembly |
EP0016384A1 (en) * | 1979-03-24 | 1980-10-01 | Dornier Gmbh | Securing element for insertion into C-section rails |
US4367002A (en) * | 1980-11-14 | 1983-01-04 | The Bendix Corporation | Coupling ring having lined bayonet slot |
US10711817B2 (en) * | 2016-06-14 | 2020-07-14 | EMC IP Holding Company LLC | Rod for use in rack and holding device for use in cooperation with rack |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3570361A (en) * | 1966-08-01 | 1971-03-16 | George A Tinnerman | Groove cutting fastener |
US3456705A (en) * | 1966-08-01 | 1969-07-22 | George A Tinnerman | Groove cutting rotating fastener |
US3411816A (en) * | 1966-11-22 | 1968-11-19 | Gen Motors Corp | Double sealing nut |
US3507182A (en) * | 1967-01-27 | 1970-04-21 | George A Tinnerman | Composite plural part fastener |
US3775790A (en) * | 1967-05-22 | 1973-12-04 | G Tinnerman | Fastening means for a rotational fastener and method |
US3491646A (en) * | 1967-05-22 | 1970-01-27 | George A Tinnerman | Fastening means for a rotational fastener and method |
US3683438A (en) * | 1968-04-22 | 1972-08-15 | George A Tinnerman | Method of forming a preformed groove cutting fastener structure |
GB1230359A (en) * | 1970-02-06 | 1971-04-28 | ||
US3952433A (en) * | 1974-09-03 | 1976-04-27 | Caterpillar Tractor Co. | Spring clip retaining means for earthworking tips |
US4114506A (en) * | 1975-01-14 | 1978-09-19 | Itw Fastex Italia, S.P.A. | Self-tapping wing nut |
JPS6021537Y2 (en) * | 1979-06-12 | 1985-06-27 | 日産自動車株式会社 | Connector |
JPS5610811A (en) * | 1979-07-06 | 1981-02-03 | Nifco Inc | Locking equipment |
US4658088A (en) * | 1983-04-29 | 1987-04-14 | Harvey Hubbell Incorporated | Self-threading polymeric fastener |
DE29700737U1 (en) * | 1997-01-16 | 1997-02-27 | Halfen GmbH & Co. KG, 40764 Langenfeld | Clamping screw |
US6817816B2 (en) * | 2002-08-13 | 2004-11-16 | Nd Industries, Inc. | Tapping assist fastening element and method |
US8439620B2 (en) | 2010-06-23 | 2013-05-14 | Brian Mellyn | Speed nut |
GB2485353B (en) * | 2010-11-09 | 2013-09-11 | Acs Stainless Steel Fixings Ltd | A channel and a channel assembly incorporating said channel |
US8974164B2 (en) | 2012-06-26 | 2015-03-10 | Newfrey Llc | Plastic high heat fastener |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US88886A (en) * | 1869-04-13 | Improvement in the manufacture op sheet-metal screw-caps | ||
US2344423A (en) * | 1943-05-04 | 1944-03-14 | John W Simmons | Fastener |
US2393323A (en) * | 1944-06-16 | 1946-01-22 | Elastic Stop Nut Corp | Threaded fastening device |
US2561036A (en) * | 1948-06-07 | 1951-07-17 | Noel S Sodders | Thread-cutting sheet metal nut |
US2573498A (en) * | 1945-04-20 | 1951-10-30 | George M Scott | Wall plug |
US2904820A (en) * | 1956-06-11 | 1959-09-22 | Tinnerman Products Inc | Closure check or the like |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2380994A (en) * | 1943-12-11 | 1945-08-07 | Edwin W Pummill | Self-locking nut or bolt |
US2417262A (en) * | 1945-06-25 | 1947-03-11 | Adel Prec Products Corp | Sealing nut |
US2538483A (en) * | 1945-11-15 | 1951-01-16 | Summers George | Plastic cap for bolts and nuts |
US2832391A (en) * | 1954-03-16 | 1958-04-29 | American Screw Co | Nylon lock nut with split metal core to provide frictional and resilient locking action |
US2850064A (en) * | 1954-08-27 | 1958-09-02 | Illinois Tool Works | Nut structure having elastic gripping action and sealing means |
US2896495A (en) * | 1957-03-28 | 1959-07-28 | Loyal D Crawford | Self-threading nut |
US3110069A (en) * | 1958-04-01 | 1963-11-12 | United Carr Fastener Corp | Plastic side wing molding fastener |
GB883340A (en) * | 1958-08-19 | 1961-11-29 | British Screw Company Ltd | Improvements in and relating to sealing members incorporating nuts for bolts |
US3000066A (en) * | 1959-06-29 | 1961-09-19 | United Carr Fastener Corp | Molding and the like fastening devices |
-
1964
- 1964-11-04 US US408995A patent/US3345899A/en not_active Expired - Lifetime
-
1965
- 1965-07-02 US US469188A patent/US3286578A/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US88886A (en) * | 1869-04-13 | Improvement in the manufacture op sheet-metal screw-caps | ||
US2344423A (en) * | 1943-05-04 | 1944-03-14 | John W Simmons | Fastener |
US2393323A (en) * | 1944-06-16 | 1946-01-22 | Elastic Stop Nut Corp | Threaded fastening device |
US2573498A (en) * | 1945-04-20 | 1951-10-30 | George M Scott | Wall plug |
US2561036A (en) * | 1948-06-07 | 1951-07-17 | Noel S Sodders | Thread-cutting sheet metal nut |
US2904820A (en) * | 1956-06-11 | 1959-09-22 | Tinnerman Products Inc | Closure check or the like |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3352194A (en) * | 1966-04-05 | 1967-11-14 | Ind Deivces Inc | Elastic safety nut |
US3388627A (en) * | 1966-05-13 | 1968-06-18 | George A. Tinnerman | Composite fastener assembly |
EP0016384A1 (en) * | 1979-03-24 | 1980-10-01 | Dornier Gmbh | Securing element for insertion into C-section rails |
US4367002A (en) * | 1980-11-14 | 1983-01-04 | The Bendix Corporation | Coupling ring having lined bayonet slot |
US10711817B2 (en) * | 2016-06-14 | 2020-07-14 | EMC IP Holding Company LLC | Rod for use in rack and holding device for use in cooperation with rack |
Also Published As
Publication number | Publication date |
---|---|
US3345899A (en) | 1967-10-10 |
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