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DE467306C - Locking device for bolts in a hole - Google Patents

Locking device for bolts in a hole

Info

Publication number
DE467306C
DE467306C DES83926D DES0083926D DE467306C DE 467306 C DE467306 C DE 467306C DE S83926 D DES83926 D DE S83926D DE S0083926 D DES0083926 D DE S0083926D DE 467306 C DE467306 C DE 467306C
Authority
DE
Germany
Prior art keywords
bolt
point
tangent
bolts
locking device
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
Application number
DES83926D
Other languages
German (de)
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.)
FR DE FILETAGE INDESSERRABLE D
Original Assignee
FR DE FILETAGE INDESSERRABLE D
Priority date (The priority date 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 date listed.)
Publication date
Priority to DES83926D priority Critical patent/DE467306C/en
Application granted granted Critical
Publication of DE467306C publication Critical patent/DE467306C/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B33/00Features common to bolt and nut
    • F16B33/02Shape of thread; Special thread-forms
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B39/00Locking of screws, bolts or nuts
    • F16B39/22Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
    • F16B39/28Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
    • F16B39/30Locking exclusively by special shape of the screw-thread
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B2/00Friction-grip releasable fastenings
    • F16B2/02Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening
    • F16B2/18Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening using cams, levers, eccentrics, or toggles

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Clamps And Clips (AREA)

Description

Feststellvorrichtung für Bolzen in einer Bohrung Es ist ein selbstklemmendes Schraubensystem bekannt, dessen Hauptmerkmal darin besteht, daß die beim Anziehen beanspruchte Stützflanke des Gewindes mit der Bolzenachse einen so kleinen Winkel einschließt, daß beim Anziehen. die Mutter sich auf dem Bolzen in axialer Richtung festklemmt.Locking device for bolts in a hole It is a self-locking device Known screw system, the main feature of which is that when tightening The supporting flank of the thread claimed such a small angle with the bolt axis includes that when tightening. the nut is on the bolt in the axial direction stuck.

Vorliegende Erfindung betrifft. einen derartigen Bolzen, bei dem aber die Steigung des Schraubenganges einen sehr großen und selbst unendlich großen Wert annehmen kann. Erfindungsgemäß haben die Querschnitte des Bolzens und der Bohrung die Gestalt einer archimedischen Spirale, deren die Endpunkte verbindenden Linien eine Zarge bilden; die zwei Kanten dieser Zarge sind bei unendlich großer Steigung zur Bolzenachse parallel, bilden aber Schraubenlinien, wenn die Steigung einen großen endlichen Wert hat. Demgemäß genügt eine kleine Winkelverschiebung des Bolzens in bezug auf die Bohrung, um ein sofortiges Festklemmen zu erzielen, und zwar mit gleichförmigem Anzugsdruck im ganzen, Umfange des Bolzens.The present invention relates. such a bolt, but with which the pitch of the screw thread has a very large and even infinitely large value can accept. According to the invention, the cross-sections of the bolt and the bore the shape of an Archimedean spiral with lines connecting the endpoints form a frame; the two edges of this frame are at an infinitely great slope parallel to the bolt axis, but form helical lines if the slope is large has finite value. Accordingly, a small angular displacement of the bolt in is sufficient with respect to the bore to achieve instant clamping with uniformity Tightening pressure in the whole, circumference of the bolt.

Auf der Zeichnung ist: Abb. i ein Schema eines Bolzens mit Gewindegängen von zunehmender Steigung, Abb. a die Ansicht eines Bolzens mit unendlich ,großer Steigung, Abb. 3 ein Querschnitt nach der Linie X-X der Abb. a.The drawing shows: Fig. I a diagram of a bolt with threads of increasing slope, Fig. a the view of a bolt with an infinitely large Slope, Fig. 3 a cross-section along the line X-X in Fig. A.

Bei zunehmender Gewindesteigung auf einem Bolzen, wie .in Abb. i bei i, 2, 3 angedeutet ist, erhält man schließlich für eine Steigung von sehr großem oder unendlichem Werte den Bolzen b1 gemäß Ab:b. 2. Der Querschnitt dieses Bolzens und der zugehörigen Mutter b ist aus Abb. 3 ersichtlich und entspricht einer von einer archimedischen Spirale begrenzten Fläche mit der Zarge r1, welche sich bei unendlich großer Steigung parallel zur Achse y-y des Bolzens erstreckt. Die Höhe dieser Zarge kann ziemlich bedeutend sein, denn Bedingung für das Festklemmen ist, daß die Tangente an die Spirale an jedem Punkte mit der Tangente an den durch den Berührungspunkt der erstgenannten Tangente gehenden Krümmungskreis einen Winkel einschließt, der kleiner ist als der Reibungswinkel der sich berührendenMetalle.With increasing thread pitch on a bolt, as in Fig. I at i, 2, 3 is indicated, one finally obtains for a slope of very large or infinite values the bolt b1 according to Ab: b. 2. The cross section of this bolt and the associated nut b can be seen from Fig. 3 and corresponds to one of an Archimedean spiral bounded area with the frame r1, which is at infinitely large slope extends parallel to the axis y-y of the bolt. The height this frame can be quite significant, because the condition for clamping is, that the tangent to the spiral at each point with the tangent to the through the Point of contact of the first-mentioned tangent going circle of curvature an angle which is smaller than the angle of friction of the metals in contact.

Aus Abb. 3 ersieht man, daß bei Drehung des Bolzens mit festgelegter Mutter in der Richtung des Pfeiles F° ein Festklemmen erreicht wird, welches keine zufällige Ursache beseitigen kann. Auf diese Art ist ein sofort festklemmbarer Stöpsel gebildet.From Fig. 3 it can be seen that when turning the bolt with fixed Nut in the direction of arrow F ° a clamping is achieved, which no can eliminate accidental cause. In this way there is an instantly clampable plug educated.

Diese Vorrichtung zum sofortigen Festklemmen kann nicht nur bei Bolzen und Muttern ange-,vandt werden, sondern auch zur Verbindung und Befestigung irgendeiner Stange in der entsprechenden Durchbrechung eines beliebigen Maschinenstückes, wobei der Umfang des Querschnittes .der Klemmflächen stets eine Spirale mit Zarge bildet, die sich parallel zur Achse des Stückes oder längs einer Schraubenlinie von starker Steigung erstreckt.This instant clamping device is not limited to bolts and nuts, but also to connect and fasten any Rod in the corresponding opening of any machine piece, whereby the circumference of the cross-section of the clamping surfaces always forms a spiral with a frame, which is parallel to the axis of the piece or along a helix of strong Slope extends.

Claims (2)

PATENTANSPRÜCHE: i. Feststellvorrichtung für Bolzen in einer Bohrung, dadurch gekennzeichnet, daß die Querschnitte des Bolzens und der Bohrung nach einer archimedischen Spirale geformt sind, deren die Endpunkte verbindenden Linien eine Zarge (A) bilden, deren Kanten auf dem Umfang des Bolzens nach einer Schraubenlinie von sehr starker oder unendlich großer Steigung verlaufen. PATENT CLAIMS: i. Locking device for bolts in a hole, characterized in that the cross sections of the bolt and the bore after a Archimedean spirals, the lines of which connect the endpoints with a Form the frame (A), the edges of which follow a helical line on the circumference of the bolt run from a very steep or infinitely great slope. 2. Vorrichtung nach Anspruch i, dadurch gekennzeichnet, daß die Tangente an die archimedische Spirale an jedem Punkt mit der Tangente an den durch den Berührungspunkt der erstgenannten Tangente gehenden, denselben Mittelpunkt wie die .Spirale besitzenden Kreis 'einen Winkel bildet, der kleiner ist als der Reibungswinkel zwischen Bolzen und Werkstück.2. Device according to claim i, characterized in that the tangent to the Archimedean spiral at each Point with the tangent to the point through the point of contact of the first-mentioned tangent going, the same center point as the "spiral owning circle" an angle forms, which is smaller than the angle of friction between the bolt and the workpiece.
DES83926D 1924-10-09 Locking device for bolts in a hole Expired DE467306C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES83926D DE467306C (en) 1924-10-09 Locking device for bolts in a hole

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DES83926D DE467306C (en) 1924-10-09 Locking device for bolts in a hole
FR241211X 1924-10-09

Publications (1)

Publication Number Publication Date
DE467306C true DE467306C (en) 1928-10-23

Family

ID=25997151

Family Applications (1)

Application Number Title Priority Date Filing Date
DES83926D Expired DE467306C (en) 1924-10-09 Locking device for bolts in a hole

Country Status (1)

Country Link
DE (1) DE467306C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1102230B (en) * 1956-10-30 1961-03-16 Paul Jordan Attachment of the upper part of a clamp for electrical cables or insulating pipes on a lower part
DE1166559B (en) * 1956-03-20 1964-03-26 Eugen Urbahn Quick-release fastener for pipe couplings to accommodate and hold intersecting pipes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1166559B (en) * 1956-03-20 1964-03-26 Eugen Urbahn Quick-release fastener for pipe couplings to accommodate and hold intersecting pipes
DE1102230B (en) * 1956-10-30 1961-03-16 Paul Jordan Attachment of the upper part of a clamp for electrical cables or insulating pipes on a lower part

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