Source: http://www.google.com/patents/US4999019?dq=5,579,517
Timestamp: 2017-01-16 18:08:16
Document Index: 786061775

Matched Legal Cases: ['art 1', 'art 1', 'art 1', 'art 1', 'art 1', 'art 14', 'art 1', 'art 1', 'art 1', 'art 1', 'art 1', 'art 1', 'art 1']

Patent US4999019 - Plastic part for engagement with a threaded bolt - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inPatentsA plastic part 1 for engagement with threaded bolts, especially coarsely threaded bolts, includes an opening 2 with several elastic catch points 3 which, in the zone of engagement with the threads of the bolts, are provided with stepped graduations. Guide elements are located in the interspaces between...http://www.google.com/patents/US4999019?utm_source=gb-gplus-sharePatent US4999019 - Plastic part for engagement with a threaded boltAdvanced Patent SearchTry the new Google Patents, with machine-classified Google Scholar results, and Japanese and South Korean patents.Publication numberUS4999019 APublication typeGrantApplication numberUS 07/271,057Publication dateMar 12, 1991Filing dateNov 14, 1988Priority dateNov 20, 1987Fee statusPaidAlso published asDE3739443A1, DE3739443C2Publication number07271057, 271057, US 4999019 A, US 4999019A, US-A-4999019, US4999019 A, US4999019AInventorsWillibald KrausOriginal AssigneeTrw United-Carr Gmbh & Co.Export CitationBiBTeX, EndNote, RefManPatent Citations (8), Referenced by (59), Classifications (10), Legal Events (4) External Links: USPTO, USPTO Assignment, EspacenetPlastic part for engagement with a threaded bolt
US 4999019 AAbstract
A plastic part 1 for engagement with threaded bolts, especially coarsely threaded bolts, includes an opening 2 with several elastic catch points 3 which, in the zone of engagement with the threads of the bolts, are provided with stepped graduations. Guide elements are located in the interspaces between the catch points 3 and are distributed in spaced relationship over the circumference of the opening 2. The guide elements 4 are designed springy or resilient and may be, for example, resilient hollow bodies or springy stays.
1. A plastic part for connection to a threaded bolt comprising:a plastic body having an axially extending opening sized to axially receive a threaded bolt; a plurality of elastic catch elements distributed about the inner circumference of the opening and extending radially inwardly of said opening to a diameter less than the diameter of a bolt received in the opening for engagement with the threads of said bolt, said catch elements provided with stepped graduations in the zone of engagement with the threads of said bolt; guide elements extending longitudinally of the opening and distributed over the inner circumference in the interspaces between the catch elements, said guide elements being hollow and radially resilient and extending radially inward of said opening to a diameter which is located radially outward of the catch elements for guiding and centering a threaded bolt received in said opening; and, each hollow guide element being of polygonal cross-sectional shape and located between two catch elements and extending, bu an outer wall thereof, to the adjoining side walls of the neighboring catch elements. 2. A plastic part for connection to a threaded bolt comprising:a plastic body having an axially extending opening sized to axially receive a threaded bolt; a plurality of elastic catch elements distributed about the inner circumference of the opening and extending radially inwardly of said opening to a diameter less than the diameter of a bolt received in the opening for engagement with the threads of said bolt, said catch elements provided with stepped graduations in the zone of engagement with the threads of said bolt; guide elements extending longitudinally of the opening and distributed over the inner circumference in the interspaces between the catch elements, said guide elements being hollow and radially resilient and extending radially inward of said opening to a diameter which is located radially outward of the catch elements for guiding and centering a threaded bolt received in said opening; and, each hollow guide element being of cylindrical cross-sectional shape and located between two catch elements. Description
The invention relates to a plastic part or fastener for engagement with a threaded bolt, especially a coarsely threaded bolt. The part includes an opening with several elastic catch points distributed about the circumference of the opening. The catch points in the zone of engagement with the threads of the bolt are provided with stepped graduations or tooth-like formations. Guide elements are arranged in the interspaces between the catch points distributed over the circumference of the opening.
Such a plastic part is already broadly known, as state of the art, in which the guide elements are designed as rigid stays or ribs situated in the interspaces between the catch points. See, for example, U.S. Pat. No. 4,728,236. The guide stays are, in the noted patent, above the catch points and have the function of guiding the threaded bolt over the whole height of the plastic part. However, if excessive tolerance variations occur in the threaded bolt, these guide stays can no longer perfectly fulfill their guiding function.
Also belonging to the state of the art is a known nut-type fastening element having four slots lying in opposed relationship and connected with each other by arcform stays. See for example, U.S. Pat. No. 4,77,582. In this known construction, however, no elastic catch points are provided over the circumference of the opening. Consequently, engagement with the threaded bolt takes place only through the arc form, and is thus relatively insecure.
Also belonging to the state of the art is an element for the elastic fastening of objects, in which, from the inner circumference of a sheath or socket form plastic element, ridges run obliquely toward the center. The ridges pass into a common wall provided with triangular guide stays on the inner circumference. See West German Disclosure 1,625,332. Here also, the holding effect is only slight, since, finally, the triangular guide stays can only be supported in a threaded bolt.
The present invention attacks the problem of designing a plastic part of the kind mentioned, so that an improvement of the guiding and the holding effect on a threaded bolt is attained. The holding effect is achieved independently of the tolerance range in which the threaded bolt lies.
The problem is solved, according to the invention, by the fact that the guide elements are, in each case, designed to be resilient and springy. Here, the guide elements may, in each case, be designed as hollow bodies, located against the inner circumference of the plastic part. This gives the advantage that, as a result of the springy design of the guide elements, especially as hollow bodies, an improvement of the holding effect and the guiding function of the plastic part is obtained. This is achieved even when the threaded bolts lie in a wide tolerance range a to their dimensions.
The hollow body forming the guide element may be designed polygonal and it may have equal wall thickness and be open at both ends. This hollow body may run over the length of the plastic part to a point below the catch points. Its radial inward extent or dimension may be less than the radial inward extent or dimension of the catch points. In this way there is obtained, advantageously, over the whole length of the plastic part, a perfect guiding of the coarsely threaded bolt.
The hollow body may have various shapes; for example, it may be designed cylindrical or wedge-shaped.
Instead of designing the guide element as a hollow body, it is also possible to shape it as a T form. In each case, the cross stay of the T form is directed to spring against the outer circumference of the threaded bolt, and fulfill the guiding function.
The invention will be explained in detail below from examples of execution represented in the drawings.
FIG. 1 is a side view of the plastic part, in section;
FIG. 2 is a top view of the plastic part in the form of construction according to FIG. 1;
FIGS. 4 to 7 are different possibilities of execution of the shape of the guide element, partly broken away; and
FIG. 8 is a side view of a plastic part with the guide elements according to the invention.
According to the preferred embodiment of FIGS. 1 to 3, a plastic part 1 is used for the holding or fastening of a threaded bolt, especially a coarsely threaded bolt, not shown in detail. Here, the plastic part 1 has an axially extending opening 2, with several elastic catch points 3, distributed over the inner circumference of the opening 2. In the zone of engagement with the threads of the threaded bolt, the catch points 3 are provided with stepped graduations or thread engaging tooth forms. Between these catch points 3 are guide elements 4. The guide elements 4 are arranged in the interspaces between the catch points 3 and distributed in spaced relationship over the circumference of the opening 2.
In the embodiment according to FIGS. 1 to 3, the guide elements 4 are designed in each case as resilient hollow bodies 6 placed against the inner circumference 5 of the plastic part 1. The hollow bodies 6 are polygonal in shape. As can be seen from FIG. 2, each hollow body 6 is arranged between two catch points and extends by its outer wall to the adjoining side wall of the neighboring catch point. Thus, the interspace between two neighboring catch points is completely filled out by the hollow body 6, which has the same wall thickness in each case. The part 14 of the hollow body is directed against the threaded bolt and is designed with an arched shape so that a springy and resilient guide function is given, as a whole, for the threaded bolt. The hollow body 6 is open at both ends in this embodiment and it can be seen from FIGS. 1 and 3 that the hollow body runs over the entire length of the plastic part 1 to a point below the catch points 3. The radial inward extent or radial height of the hollow body 6 between the individual catch points 4 is less than the radial inward extent or radial height of these catch points. In this way, the threaded bolt, set in from below, will always receive at once a perfect springy guiding and centering after which the graduations of the elastic catch points will come into use and can be lodged, accordingly, in the threads of the threaded bolt.
In the form of construction according to FIG. 4, the hollow body 6' has, in each case, two side walls 7 and 8, spaced a distance from each other. The walls 7 and 8 extend generally radially inwardly from the inner wall surface 5 of the opening 2 and are connected with each other by a transverse wall 9. In this case, the transverse wall 9 is designed with a curved or arched configuration so that, again, a very good guiding function is given for the threaded bolt that is received in the opening 2.
In the form of construction of FIG. 5, the hollow body 6" is designed to have a cylindrical shape. Thus, in this configuration also, the hollow body 6" is in a position to resilient guide the threaded bolt which is received in the plastic part 1.
In the form of construction according to FIG. 6, the hollow body 6"' is designed with a wedge shape and has its front tip arranged to extend toward the threads of the threaded bolt.
While in the above forms of construction, the guide elements 4 are always designed as specially shaped hollow bodies, it is possible, according to FIG. 7, to design this guide element 4' as a T-shaped element. In the FIG. 7 construction the T-form 10 is limited, in the front zone, by a cross stay 11 which is designed with an arch at the end. In this way also, a threaded bolt receives a spring or resilient guiding over the whole length of the plastic part 1.
In FIG. 8 is shown one example of execution of such a plastic part 1', for example, a pipeline clip with the two holding zones 12 and 13 for pipes. In the middle of the plastic part 1' is the opening 2, into which, extending over almost the whole length, hollow bodies according to the construction form of FIG. 6, extend as guide elements. In the lower third of the plastic part 1 are the elastic catch points 3 with the stepped or graduated form.
On the whole, the springy or resilient guide elements, whether as hollow bodies or as single springy configurations, give the advantage that a threaded bolt, especially a coarsely threaded bolt, set into the plastic part 1 or 1', receives a perfect guiding over almost the whole length of the plastic part. Indeed, perfect guiding is achieved even when the threaded bolt has a somewhat greater or somewhat smaller tolerance range. Consequently, with this invention, the range of use of such a plastic part is considerably expanded.
Patent CitationsCited PatentFiling datePublication dateApplicantTitleUS4435111 *Jul 13, 1981Mar 6, 1984Nifco Inc.NutUS4541153 *Feb 6, 1984Sep 17, 1985Usm CorporationMounting clipUS4547108 *Nov 25, 1983Oct 15, 1985Nifco Inc.Trim cover clipUS4558494 *Jun 15, 1984Dec 17, 1985Trw United-Carr GmbhPlastic fastening componentUS4728236 *Jul 16, 1986Mar 1, 1988Trw United Carr GmbhFastening device for use on threaded bolts or studsUS4770582 *Oct 23, 1986Sep 13, 1988A. RaymondPress-type fastener for threaded pinsEP0153489A1 *Dec 22, 1984Sep 4, 1985Firma A. RaymondNutlike fastener for screwboltsGB2179113A * Title not available* Cited by examinerReferenced byCiting PatentFiling datePublication dateApplicantTitleUS5098242 *Jul 10, 1991Mar 24, 1992Emhart Inc.Plastic fastener for threaded studUS5291639 *Apr 1, 1993Mar 8, 1994Emhart Inc.Push buttonUS5297322 *Nov 4, 1992Mar 29, 1994Trw United Carr Gmbh & Co. KgConnection between a support and a plate elementUS5423647 *Feb 2, 1994Jun 13, 1995Sumitomo Wiring Systems, Ltd.Stud bolt clipUS5598994 *Jun 29, 1995Feb 4, 1997Panduit Corp.Stud engaging deviceUS5782597 *May 5, 1997Jul 21, 1998Illinois Tool Works Inc.Stud retention deviceUS5816762 *Jul 9, 1996Oct 6, 1998Illinois Tool Works Inc.Stud clip having different insertion/withdrawal forcesUS5899418 *Nov 18, 1996May 4, 1999Thomas & Betts CorporationCable fastening deviceUS5906464 *Nov 22, 1995May 25, 1999Hkt Haider Und Deravis GmbhQuick-clamping nut for a fastener assemblyUS6039525 *Oct 21, 1998Mar 21, 2000Johnson; H. ThadIntegrated spring ring retainer for captivating a fastener to a workpieceUS6059503 *Oct 27, 1998May 9, 2000Johnson; H. ThadCaptivated fastener assemblyUS6196751Sep 11, 1998Mar 6, 2001Thomas & Betts International, Inc.Stud mounted fastener for routing wireUS7004702 *Jan 17, 2001Feb 28, 2006Van Der Heijden Franciscus AntSystem for connecting elementsUS7008160 *Jul 23, 2003Mar 7, 2006Newfrey LlcDevice for mounting a component such as a pipe on a studUS7178298 *Apr 17, 2006Feb 20, 2007Ebeling Sr AlbertBuilding construction system and methodUS7179038 *Nov 19, 2004Feb 20, 2007Newfrey LlcFastener for application to a threaded studUS7320571 *Sep 17, 2003Jan 22, 2008Newfrey LlcDevice for mounting a component such as a pipe on a studUS7322784 *Jun 7, 2005Jan 29, 2008Itw De FranceFemale attachment and obturator including itUS7544028 *Jul 19, 2005Jun 9, 2009Airbus FranceCage for electrical connection nutUS7708512Oct 17, 2007May 4, 2010Newfrey LlcCompression limiterUS7753633Nov 10, 2008Jul 13, 2010Newfrey LlcPower seal bolt assemblyUS8061948 *Jun 28, 2007Nov 22, 2011A. Raymond Et CieDevice for fastening an add-on part and a support part at a distance from each otherUS8210785Feb 4, 2009Jul 3, 2012Gager Dennis JDecorative cap and nut for toilet baseUS8210786 *Dec 5, 2007Jul 3, 2012Piolax Inc.Fastening deviceUS8256736 *Aug 6, 2009Sep 4, 2012Asia Vital Components Co., Ltd.Mounting rack structure and mounting hole adapter thereofUS8328488 *May 7, 2008Dec 11, 2012Illinois Tool Works Inc.Stud retainer apparatusUS8678338Apr 13, 2012Mar 25, 2014Asia Vital Components Co., Ltd.Mounting rack structure and mounting hole adapter thereofUS8950993 *May 2, 2013Feb 10, 2015Brainwave Research CorporationSpeed nut and assemblyUS8979461Feb 25, 2010Mar 17, 2015Illinois Tool Works Inc.Stud retainer assemblyUS8998310 *Sep 7, 2012Apr 7, 2015Lear CorporationSeat trim retention clipUS9190821 *Oct 27, 2009Nov 17, 2015Panduit Corp.Mount having a push nut and a postUS9303678 *Jan 4, 2013Apr 5, 2016Newfrey LlcNutUS9309033 *Oct 22, 2013Apr 12, 2016Avery Dennison CorporationMounting feature for a cable tieUS20030180123 *Jan 17, 2001Sep 25, 2003Van Der Heijden Franciscus Antonius MariaSystem for connecting elementsUS20040140406 *Sep 17, 2003Jul 22, 2004Newfrey, LlcDevice for mounting a component such as a pipe on a studUS20040141828 *Jul 23, 2003Jul 22, 2004Newfrey, LlcDevice for mounting a component such as a pipe on a studUS20050135901 *Nov 19, 2004Jun 23, 2005Johann ReindlFastener for application to a threaded studUS20050260895 *May 16, 2005Nov 24, 2005Nifco Inc.Holding deviceUS20060018731 *Jul 19, 2005Jan 26, 2006Airbus FranceCage for electrical connection nutUS20060034671 *Jun 7, 2005Feb 16, 2006Itw De FranceFemale attachment and obturator including itUS20070160441 *Feb 6, 2007Jul 12, 2007Johann ReindlFastener for application to a threaded studUS20080095593 *Oct 17, 2007Apr 24, 2008Mclean Shawn GCompression LimiterUS20090028668 *May 7, 2008Jan 29, 2009Luk Melodie SStud retainer apparatusUS20090123252 *Nov 10, 2008May 14, 2009Newfrey LlcPower Seal Bolt AssemblyUS20090190993 *Jun 28, 2007Jul 30, 2009A. Raymond Et CieDevice for fastening an add-on part and a support part at a distance from each otherUS20100104394 *Oct 27, 2009Apr 29, 2010Panduit Corp.Mount having a push nut and a postUS20100111642 *Nov 5, 2009May 6, 2010Newfrey LlcClip for attaching a cover or other attaching memberUS20100307997 *Aug 6, 2009Dec 9, 2010Asia Vital Components Co., Ltd.Mounting pack structure and mounting hole adapter thereofUS20130117996 *Jan 4, 2013May 16, 2013Newfrey LlcNut, a fastening arrangement, and a method of fasteningUS20130294867 *May 2, 2013Nov 7, 2013Brainwave Research CorporationSpeed nut and assemblyUS20140068900 *Sep 7, 2012Mar 13, 2014Lear CorporationSeat trim retention clipUS20140182086 *Oct 22, 2013Jul 3, 2014Avery Dennison CorporationMounting Feature for a Cable TieCN101354056BJul 2, 2008Jun 2, 2010李浩典Screw counter bore structure of plastic partEP0751597A1 *Jun 20, 1996Jan 2, 1997Panduit Corp.Stud engaging deviceEP1592891A2 *Jul 24, 2003Nov 9, 2005Newfrey LLCDevice for holding a piece in a boreEP1592891A4 *Jul 24, 2003May 10, 2006Newfrey LlcDevice for holding a piece in a boreWO2009014817A2 *Jun 9, 2008Jan 29, 2009Illinois Tool Works Inc.Stud retainer apparatusWO2009014817A3 *Jun 9, 2008Mar 26, 2009Illinois Tool WorksStud retainer apparatusWO2010110985A1 *Feb 25, 2010Sep 30, 2010Illinois Tool Works Inc.Stud retainer assembly* Cited by examinerClassifications U.S. Classification411/512, 411/437, 24/297, 411/908International ClassificationF16B37/10, F16B37/08Cooperative ClassificationY10T24/309, Y10S411/908, F16B37/0842European ClassificationF16B37/08A10Legal EventsDateCodeEventDescriptionDec 23, 1988ASAssignmentOwner name: TRW UNITED CARR GMBH & CO., AM PULVERHAUSCHEN 7, 6Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:KRAUS, WILLIBALD;REEL/FRAME:004999/0326Effective date: 19881128Owner name: TRW UNITED CARR GMBH & CO., GERMANYFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:KRAUS, WILLIBALD;REEL/FRAME:004999/0326Effective date: 19881128Jul 21, 1994FPAYFee paymentYear of fee payment: 4Aug 28, 1998FPAYFee paymentYear of fee payment: 8Aug 22, 2002FPAYFee paymentYear of fee payment: 12RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services