[go: up one dir, main page]

WO1996008659A1 - Device for fastening two components to each other - Google Patents

Device for fastening two components to each other Download PDF

Info

Publication number
WO1996008659A1
WO1996008659A1 PCT/AT1995/000176 AT9500176W WO9608659A1 WO 1996008659 A1 WO1996008659 A1 WO 1996008659A1 AT 9500176 W AT9500176 W AT 9500176W WO 9608659 A1 WO9608659 A1 WO 9608659A1
Authority
WO
WIPO (PCT)
Prior art keywords
nut
housing
thread
segments
bolt
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.)
Ceased
Application number
PCT/AT1995/000176
Other languages
German (de)
French (fr)
Inventor
Emmerich Wutschek
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.)
Gesellschaft Des Bundes fur Industriepolitische Massnahmen GmbH
Original Assignee
Gesellschaft Des Bundes fur Industriepolitische Massnahmen GmbH
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.)
Filing date
Publication date
Application filed by Gesellschaft Des Bundes fur Industriepolitische Massnahmen GmbH filed Critical Gesellschaft Des Bundes fur Industriepolitische Massnahmen GmbH
Priority to AU32463/95A priority Critical patent/AU3246395A/en
Publication of WO1996008659A1 publication Critical patent/WO1996008659A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • F16B37/00—Nuts or like thread-engaging members
    • F16B37/08—Quickly-detachable or mountable nuts, e.g. consisting of two or more parts; Nuts movable along the bolt after tilting the nut
    • F16B37/0807—Nuts engaged from the end of the bolt, e.g. axially slidable nuts
    • F16B37/0857—Nuts engaged from the end of the bolt, e.g. axially slidable nuts with the threaded portions of the nut engaging the thread of the bolt by the action of one or more springs or resilient retaining members

Definitions

  • the present invention relates to a device for fastening two components to one another, consisting of a screw bolt formed with a screw thread and a nut formed with a thread corresponding to the thread of the screw bolt, which is divided into several segments and which is located within a housing, wherein the outer surface of the nut and the inner surface of the housing are formed with conical surfaces of the same type and the nut is assigned a spring, by means of which the segments are loaded on their position in contact with one another.
  • Known devices of this type serve to enable accelerated fastening of components to one another. This is achieved in that the screw bolt can be inserted into the nut in the axial direction, the segments of the nut being moved apart in the radial direction. Only as soon as the bolt has almost reached its end position is it turned relative to the nut. The segments of the nut are moved radially inward within the housing along the conical surfaces, as a result of which the corresponding threads of the bolt and the nut come into engagement with one another. By further turning the bolt, the necessary clamping force is exerted on the components located between the bolt and the nut which are to be fastened to one another.
  • the nut consists of four segments which are provided on their outer jacket with a groove in which an annular spring is arranged, by means of which the segments are held in contact with one another.
  • the housing is at its end facing the bolt head with an in Axial direction only slightly extending and therefore very flat conical surface.
  • an end plate is also provided at the other end of the housing, which plate is connected to the axis of the Housing obliquely aligned ribs is formed, which protrude into the grooves provided on the associated end face of the housing and cooperate with them when the screw bolt is rotated within the nut such that the segments also radially move on the side of the housing opposite the conical surface Screw axis are loaded.
  • the object of the present invention is therefore to create a device of this type which has considerably fewer components and which, regardless of the technical requirements, corresponds to this.
  • This is achieved according to the invention in that the mutually associated conical surfaces of the nut and the housing extend at least over half the length of the nut or the housing and that the nut is divided into only two segments, the threads of the nut being only in the two areas adjacent to the normal plane are located on the division plane, whereas the areas adjacent to the division plane are kept free of thread turns.
  • the threads in the nut are formed all around.
  • the threads of the screw bolt pass the threads of the nut when the individual segments move radially apart, there is a requirement that the nut be divided into at least four segments.
  • the threads of the nut since the threads of the nut only extend over two partial areas in a device according to the invention, the nut needs in only two segments to be divided without the functionality of the device being impaired.
  • the conical surfaces extend over at least almost the entire length of the nut or the housing.
  • the conical surfaces with the screw axis can enclose an angle of 1 "to 15 °, preferably an angle of 10".
  • the threads preferably extend in the areas of the normal plane to the division plane over an angle of 90 ° to 120 ".
  • a compression spring or the like rests on the end of the nut facing away from the bolt head. on.
  • the housing at its end remote from the bolt head can be formed with an inwardly projecting flange against which the compression spring comes to rest.
  • the surfaces of the thread facing the bolt head form an angle of 2 ⁇ to 5 ⁇ relative to the normal plane on the screw axis and the surfaces of the thread facing away from the normal plane form an angle of 15 ° to 45 ⁇ on the screw axis.
  • FIG. 1 shows an axonometric device according to the invention
  • Fig. 4 is a part of this device, in plan view, and
  • Fig. 5 shows the detail A of FIG. 2, in an enlarged view and in section.
  • a device has a screw bolt 1, which consists of a bolt head 11 and a threaded bolt 12.
  • the bolt 1 is assigned a housing 2 for a nut 3.
  • the housing 2 the diameter of which is approximately the same as the diameter of the Eolzen head 11, is pot-shaped, the outer jacket 21 of which is cylindrical and the inner surface 22 of which is conical.
  • the angle which the conical surface 22 forms with the pressure axis of the housing 2 is approximately 10 °.
  • the conical surface 22 extends almost over the entire length of the housing 2.
  • the nut 3 is arranged inside the housing 2 and, as can be seen from FIG. 4, is divided into two identical segments 3a and 3b.
  • the outer surface 31 of the nut 3 is also designed as a conical surface, the taper of which is equal to the taper of the inner surface 22 of the housing 2.
  • the thread turns 32 provided on the inner surfaces of the segments 3a and 3b do not extend over the entire circumference, but are only provided in those areas which are in contact with the plane normal to the parting plane of the nut 3. In contrast, no threads are provided in the areas adjacent to the parting plane. As a result, the threaded bore 33 of the nut 3 has an approximately oval cross section.
  • a compression spring 4 is provided between the nut 3 and an inwardly projecting flange 23 of the housing 2 which the nut 3 is loaded within the housing 2 to move towards the bolt head 11.
  • the thread surfaces of the threaded bolt 12 on the side facing the bolt head 11 form a flat angle ⁇ of approximately 10 "with the normal plane on the screw axis, whereas the thread surfaces facing away from the bolt head 11 also include Include an angle ß of about 45 ° on the normal axis of the screw axis.
  • the nut 3 located in the housing 2 is arranged on one side and the screw bolt 1 is moved in the axial direction into the threaded bore of the nut 3.
  • the segments 3a and 3b are axially displaced and moved radially apart against the action of the compression spring 4, as a result of which the threaded bolt 12 can be pushed through the nut 3.
  • the thread surfaces of the threaded bolt 12 and the nut 3 lying against one another enclose an angle of approximately 45 ° with the direction of movement, no great frictional resistances are required.
  • the screw bolt 1 has almost reached its end position, it is rotated, as a result of which the segments 3a and 3b are moved in the direction of the bolt head 11.
  • the segments 3a and 3b are hereby moved radially inwards, whereby they are pressed against the threaded bolt 12. Since the thread surfaces that come into contact with one another enclose a very flat angle with the normal plane on the screw axis, the required clamping force is achieved, although the threads of the nut 3 only extend over partial areas of the threaded bore 33.

Landscapes

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

Abstract

Disclosed is a device for fastening two components (10, 20) to each other, the device consisting of a bolt (1) with a thread (12) and a nut (3) with a thread corresponding to that of the bolt (1), the nut being divided into several segments (3a, 3b) and surrounded by a casing (2). The outside of the nut (3) and the inside of the casing (2) have diametrically opposed conical surfaces and the nut (3) is associated with a spring (4) which biases the segments (3a, 3b) of the nut towards the position in which they rest against each other. The matching conical surfaces of the nut (3) and casing (2) extend over at least half the length of the nut (3) and casing (2), respectively, and the nut (3) is divided into two segments (3a, 3b), the turns of the nut thread being located only in the two zones resting against the plane normal to the dividing plane, whereas the zones resting against the dividing plane have no thread.

Description

Einrichtung zur Befestigung von zwei Bauteilen aneinander Device for fastening two components together

Die gegenständliche Erfindung betrifft eine Einrichtung zur Be¬ festigung von zwei Bauteilen aneinander, bestehend aus einem mit einem Schraubgewinde ausgebildeten Schraubbolzen und einer mit einem dem Gewinde des Schraubbolzens entsprechenden Gewinde ausgebildeten Mutter, welche in mehrere Segmente unterteilt ist und welche sich innerhalb eines Gehäuses befindet, wobei die Außenfläche der Mutter und die Innenfläche des Gehäuses mit gegengleichen Konusflächen ausgebildet sind und der Mutter eine Feder zugeordnet ist, durch welche die Segmente auf ihre in An¬ lage aneinander befindliche Lage belastet sind.The present invention relates to a device for fastening two components to one another, consisting of a screw bolt formed with a screw thread and a nut formed with a thread corresponding to the thread of the screw bolt, which is divided into several segments and which is located within a housing, wherein the outer surface of the nut and the inner surface of the housing are formed with conical surfaces of the same type and the nut is assigned a spring, by means of which the segments are loaded on their position in contact with one another.

Bekannte derartige Einrichtungen dienen dazu, eine beschleu¬ nigte Befestigung von Bauteilen aneinander zu ermöglichen. Dies wird dadurch erzielt, daß der Schraubbolzen in die Mutter in axialer Richtung eingeschoben werden kann, wobei die Segmente der Mutter in radialer Richtung auseinander bewegt werden. Erst sobald der Bolzen nahezu seine Endstellung erreicht hat, wird er gegenüber der Mutter verdreht. Dabei werden die Segmente der Mutter innerhalb des Gehäuses längs der Konusflächen radial nach innen bewegt, wodurch die einander entsprechenden Gewinde des Bolzens und der Mutter miteinander in Eingriff kommen. Durch eine weitere Verdrehung des Schraubbolzens wird auf die zwischen dem Schraubbolzen und der Mutter befindlichen Bauteile, welche aneinander befestigt werden sollen, die erfor¬ derliche Spannkraft ausgeübt.Known devices of this type serve to enable accelerated fastening of components to one another. This is achieved in that the screw bolt can be inserted into the nut in the axial direction, the segments of the nut being moved apart in the radial direction. Only as soon as the bolt has almost reached its end position is it turned relative to the nut. The segments of the nut are moved radially inward within the housing along the conical surfaces, as a result of which the corresponding threads of the bolt and the nut come into engagement with one another. By further turning the bolt, the necessary clamping force is exerted on the components located between the bolt and the nut which are to be fastened to one another.

Bekannten derartigen Einrichtungen haftet jedoch der Nachteil an, daß sie aus einer Vielzahl von Bestandteilen bestehen, wo¬ durch deren Herstellung teuer und deren Einsatz aufwendig ist. So besteht bei einer derartigen aus der WO 93/15328 bekannten Einrichtung die Mutter aus vier Segmenten, welche an ihrem Außenmantel mit einer Nut versehen sind, in welcher eine ringförmige Feder angeordnet ist, durch welche die Segmente auf Anlage zueinander gehalten sind. Zudem ist das Gehäuse an seinem dem Bolzenkopf zugewandten Ende mit einer sich in axialer Richtung nur geringfügig erstreckenden und daher sehr flachen Konusfläche ausgebildet. Da durch die im Gehäuse vorge¬ sehene Konusfläche die bei der Verspannung des Schraubbolzens auf die vier Segmente der Mutter ausgeübten Kräfte in radialer Richtung nicht aufgenommen werden können, ist weiters am ande¬ ren Ende des Gehäuses eine Abschlußplatte vorgesehen, welche mit gegenüber der Achse des Gehäuses schräg ausgerichteten Rippen ausgebildet ist, welche in an der zugeordneten Stirn¬ fläche des Gehäuses vorgesehene Nuten einragen und mit diesen bei einer Verdrehung des Schraubbolzens innerhalb der Mutter so zusammenwirken, daß die Segmente auch auf der der Konusfläche gegenüberliegenden Seite des Gehäuses auf radiale Bewegung zur Schraubachse hin belastet sind.Known devices of this type, however, have the disadvantage that they consist of a large number of constituents, which means that their manufacture is expensive and their use is complex. In such a device known from WO 93/15328, the nut consists of four segments which are provided on their outer jacket with a groove in which an annular spring is arranged, by means of which the segments are held in contact with one another. In addition, the housing is at its end facing the bolt head with an in Axial direction only slightly extending and therefore very flat conical surface. Since the cone surface provided in the housing means that the forces exerted on the four segments of the nut when the bolt is braced cannot be absorbed in the radial direction, an end plate is also provided at the other end of the housing, which plate is connected to the axis of the Housing obliquely aligned ribs is formed, which protrude into the grooves provided on the associated end face of the housing and cooperate with them when the screw bolt is rotated within the nut such that the segments also radially move on the side of the housing opposite the conical surface Screw axis are loaded.

Der gegenständlichen Erfindung liegt demnach die Aufgabe zu¬ grunde, eine derartige Einrichtung zu schaffen, welche wesent¬ lich weniger Bauelemente aufweist und welche dessen ungeachtet den technischen Erfordernissen entspricht. Dies wird erfindungsgemäß dadurch erzielt, daß sich die einander zugeord¬ neten Konusflächen der Mutter und des Gehäuses zumindest über die halbe Länge der Mutter bzw. des Gehäuses erstrecken und daß die Mutter in nur zwei Segmente unterteilt ist, wobei sich die Gewindegänge der Mutter nur in den beiden an die Normalebene auf die Teilungsebene anliegenden Bereichen befinden, wogegen die an die Teilungsebene anliegenden Bereiche von Gewindegängen freigehalten sind.The object of the present invention is therefore to create a device of this type which has considerably fewer components and which, regardless of the technical requirements, corresponds to this. This is achieved according to the invention in that the mutually associated conical surfaces of the nut and the housing extend at least over half the length of the nut or the housing and that the nut is divided into only two segments, the threads of the nut being only in the two areas adjacent to the normal plane are located on the division plane, whereas the areas adjacent to the division plane are kept free of thread turns.

Bei bekannten derartigen Einrichtungen sind die Gewindegänge in der Mutter ringsumlaufend ausgebildet. Um dabei bei einem radialen Auseinanderbewegen der einzelnen Segmente gewähr¬ leisten zu können, daß die Gewindegänge des Schraubbolzens an den Gewindegängen der Mutter vorbei gelangen, besteht das Erfordernis, daß die Mutter in zumindest vier Segmente unter¬ teilt ist. Da sich demgegenüber bei einer erfindungsgemäßen Einrichtung die Gewindegänge der Mutter nur über zwei Teilbe¬ reiche erstrecken, braucht die Mutter in nur zwei Segmente unterteilt zu werden, ohne daß hierdurch die Funktionsfähigkeit der Einrichtung beeinträchtigt wird.In known such devices, the threads in the nut are formed all around. In order to be able to guarantee that the threads of the screw bolt pass the threads of the nut when the individual segments move radially apart, there is a requirement that the nut be divided into at least four segments. In contrast, since the threads of the nut only extend over two partial areas in a device according to the invention, the nut needs in only two segments to be divided without the functionality of the device being impaired.

Nach einer bevorzugten Ausführungsform erstrecken sich die Konusflächen über zumindest nahezu die gesamten Längen der Mutter bzw. des Gehäuses. Durch diese Ausbildung werden die auf die Segmente in radialer Richtung wirkenden Kräfte gleichmäßig über die gesamte axiale Länge der Mutter übertragen, weswegen kein Erfordernis besteht, für die Bewegung der Segmente in axialer Richtung weitere Bauelemente vorzusehen. Dabei können die Konusflächen mit der Schraubachse einen Winkel von 1 " bis 15°, vorzugsweise einen Winkel von 10", einschließen.According to a preferred embodiment, the conical surfaces extend over at least almost the entire length of the nut or the housing. With this design, the forces acting on the segments in the radial direction are transmitted uniformly over the entire axial length of the nut, which is why there is no need to provide further components for the movement of the segments in the axial direction. The conical surfaces with the screw axis can enclose an angle of 1 "to 15 °, preferably an angle of 10".

Vorzugsweise erstrecken sich die Gewindegänge in den Bereichen der Normalebene auf die Teilungsebene über einen Winkel von 90° bis 120".The threads preferably extend in the areas of the normal plane to the division plane over an angle of 90 ° to 120 ".

Nach einer weiteren bevorzugten Ausführungsform liegt an das dem Bolzenkopf abgewandte Ende der Mutter eine Druckfeder od.dgl. an. Dabei kann das Gehäuse an seinem vom Bolzenkopf abliegenden Ende mit einem nach innen abragenden Flansch ausge¬ bildet sein, an welchen die Druckfeder zur Anlage kommt.According to a further preferred embodiment, a compression spring or the like rests on the end of the nut facing away from the bolt head. on. The housing at its end remote from the bolt head can be formed with an inwardly projecting flange against which the compression spring comes to rest.

Nach weiteren bevorzugten Ausführungsformen schließen die dem Bolzenkopf zugewandten Flächen des Gewindes gegenüber der Nor¬ malebene auf die Schraubenachse einen Winkel von 2β bis 5β und die abgewandten Flächen des Gewindes gegenüber der Normalebene auf die Schraubenachse einen Winkel von 15° bis 45β ein.According to further preferred embodiments, the surfaces of the thread facing the bolt head form an angle of 2 β to 5 β relative to the normal plane on the screw axis and the surfaces of the thread facing away from the normal plane form an angle of 15 ° to 45 β on the screw axis.

Der Gegenstand der Erfindung ist nachstehend anhand eines in der Zeichnung dargestellten Ausführungsbeispiels näher erläu¬ tert. Es zeigen: Fig. 1 eine erfindungsgemäße Einrichtung, in axonometrischerThe object of the invention is explained in more detail below with reference to an embodiment shown in the drawing. 1 shows an axonometric device according to the invention

Darstellung, teilweise geschnitten, Fig. 2 diese Einrichtung, in Seitenansicht, teilweise ge¬ schnitten, Fig. 3 diese Einrichtung in auseinandergezogener Dar¬ stellung, teilweise geschnitten,Representation, partially sectioned, FIG. 2 this device, in a side view, partially sectioned, 3 this device in an exploded view, partially in section,

Fig. 4 einen Bestandteil dieser Einrichtung, in Draufsicht, undFig. 4 is a part of this device, in plan view, and

Fig. 5 das Detail A der Fig. 2, in vergrößterter Darstellung und im Schnitt.Fig. 5 shows the detail A of FIG. 2, in an enlarged view and in section.

Wie dies aus den Fig. 1 bis 4 ersichtlich ist, weist eine er¬ findungsgemäße Einrichtung einen Schraubbolzen 1 auf, welcher aus einem Bolzenkopf 11 und einem Gewindebolzen 12 besteht. Dem Schraubbolzen 1 ist ein Gehäuse 2 für eine Mutter 3 zugeordnet. Das Gehäuse 2, dessen Durchmesser dem Durchmesser des Eolzen- kopfes 11 angenähert gleich ist, ist topfartig ausgebildet, wo¬ bei dessen Außenmantel 21 zylindrisch und dessen Innenfläche 22 konisch ausgebildet sind. Der Winkel, den die Konusflache 22 mit der Druckachse des Gehäuses 2 einschließt, beträgt etwa 10°. Die Konusfläche 22 erstreckt sich nahezu über die gesamte Länge des Gehäuses 2.As can be seen from FIGS. 1 to 4, a device according to the invention has a screw bolt 1, which consists of a bolt head 11 and a threaded bolt 12. The bolt 1 is assigned a housing 2 for a nut 3. The housing 2, the diameter of which is approximately the same as the diameter of the Eolzen head 11, is pot-shaped, the outer jacket 21 of which is cylindrical and the inner surface 22 of which is conical. The angle which the conical surface 22 forms with the pressure axis of the housing 2 is approximately 10 °. The conical surface 22 extends almost over the entire length of the housing 2.

Innerhalb des Gehäuses 2 ist die Mutter 3 angeordnet, welche, wie dies aus Fig. 4 ersichtlich ist, in zwei gleiche Segmente 3a und 3b unterteilt ist. Die Außenfläche 31 der Mutter 3 ist gleichfalls als Konusfläche ausgebildet, wobei deren Konizität der Konizität der Innenfläche 22 des Gehäuses 2 gleich ist. Die auf den Innenflächen der Segmente 3a und 3b vorgesehenen Gewin¬ degänge 32 erstrecken sich nicht über den gesamten Umfang, sondern sind nur in denjenigen Bereichen vorgesehen, welche an die auf die Teilungsebene der Mutter 3 normal stehende Ebene anliegen. Demgegenüber sind in den an die Teilungsebene anlie¬ genden Bereichen keine Gewindegänge vorgesehen. Hierdurch weist die Gewindebohrung 33 der Mutter 3 einen angenähert ovalen Querschnitt auf.The nut 3 is arranged inside the housing 2 and, as can be seen from FIG. 4, is divided into two identical segments 3a and 3b. The outer surface 31 of the nut 3 is also designed as a conical surface, the taper of which is equal to the taper of the inner surface 22 of the housing 2. The thread turns 32 provided on the inner surfaces of the segments 3a and 3b do not extend over the entire circumference, but are only provided in those areas which are in contact with the plane normal to the parting plane of the nut 3. In contrast, no threads are provided in the areas adjacent to the parting plane. As a result, the threaded bore 33 of the nut 3 has an approximately oval cross section.

Zwischen der Mutter 3 und einem nach innen abragenden Flansch 23 des Gehäuses 2 ist eine Druckfeder 4 vorgesehen, durch welche die Mutter 3 innerhalb des Gehäuses 2 auf Bewegung in Richtung auf den Bolzenkopf 11 hin belastet ist.A compression spring 4 is provided between the nut 3 and an inwardly projecting flange 23 of the housing 2 which the nut 3 is loaded within the housing 2 to move towards the bolt head 11.

Wie weiters aus Fig. 5 ersichtlich ist, schließen die Gewinde¬ flächen des Gewindebolzens 12 an der dem Bolzenkopf 11 zuge¬ wandten Seite mit der Normalebene auf die Schraubenachse einen flachen Winkel α von etwa 10" ein, wogegen die dem Bolzenkopf 11 abgewandten Gewindeflächen mit der Normalebene auf die Schraubenachse einen Winkel ß von etwa 45° einschließen.As can also be seen from FIG. 5, the thread surfaces of the threaded bolt 12 on the side facing the bolt head 11 form a flat angle α of approximately 10 "with the normal plane on the screw axis, whereas the thread surfaces facing away from the bolt head 11 also include Include an angle ß of about 45 ° on the normal axis of the screw axis.

Für die Befestigung von zwei Bauteilen 10 und 20 miteinander wird die im Gehäuse 2 befindliche Mutter 3 auf einer Seite an¬ geordnet und wird der Schraubbolzen 1 in axialer Richtung in die Gewindebohrung der Mutter 3 hineinbewegt. Hierdurch werden die Segmente 3a und 3b entgegen der Wirkung der Druckfeder 4 axial verschoben und radial auseinanderbewegt, wodurch der Gewindebolzen 12 durch die Mutter 3 hindurchgeschoben werden kann. Dadurch, daß die dabei aneinander liegenden Gewinde¬ flächen des Gewindebolzens 12 und der Mutter 3 mit der Bewe¬ gungsrichtung einen Winkel von etwa 45° einschließen, werden keine großen Reibungswiderstände bedingt. Sobald der Schraubbolzen 1 nahezu seine Endstellung erreicht hat, wird er verdreht, wodurch die Segmente 3a und 3b in Richtung auf den Bolzenkopf 11 hin bewegt werden. Aufgrund der Konizitäten der Innenfläche 22 des Gehäuses 2 und der Außenfläche 31 der Mutter 3 werden hierdurch die Segmente 3a und 3b radial nach innen be¬ wegt, wodurch sie an den Gewindebolzen 12 angepreßt werden. Da die dabei aneinander zur Anlage kommenden Gewindeflächen mit der Normalebene auf die Schraubachse einen sehr flachen Winkel einschließen, wird die erforderliche Spannkraft erzielt, ob¬ gleich sich die Gewindegänge der Mutter 3 nur über Teilbereiche der Gewindebohrung 33 erstrecken. For fastening two components 10 and 20 together, the nut 3 located in the housing 2 is arranged on one side and the screw bolt 1 is moved in the axial direction into the threaded bore of the nut 3. As a result, the segments 3a and 3b are axially displaced and moved radially apart against the action of the compression spring 4, as a result of which the threaded bolt 12 can be pushed through the nut 3. Because the thread surfaces of the threaded bolt 12 and the nut 3 lying against one another enclose an angle of approximately 45 ° with the direction of movement, no great frictional resistances are required. As soon as the screw bolt 1 has almost reached its end position, it is rotated, as a result of which the segments 3a and 3b are moved in the direction of the bolt head 11. Because of the conicity of the inner surface 22 of the housing 2 and the outer surface 31 of the nut 3, the segments 3a and 3b are hereby moved radially inwards, whereby they are pressed against the threaded bolt 12. Since the thread surfaces that come into contact with one another enclose a very flat angle with the normal plane on the screw axis, the required clamping force is achieved, although the threads of the nut 3 only extend over partial areas of the threaded bore 33.

Claims

PATENTANSPRÜCHE PATENT CLAIMS 1. Einrichtung zur Befestigung von zwei Bauteilen aneinander, bestehend aus einem mit einem Schraubgewinde ausgebildeten Schraubbolzen und einer mit einem dem Gewinde des Schraub- bolzens entsprechenden Gewinde ausgebildeten Mutter, welche in mehrere Segmente unterteilt ist und welche sich innerhalb eines Gehäuses befindet, wobei die Außenfläche der Mutter und die Innenfläche des Gehäuses mit gegengleichen Konusflächen ausge¬ bildet sind und der Mutter eine Feder zugeordnet ist, durch welche die Segmente auf ihre in Anlage aneinander befindliche Lage belastet werden, dadurch gekennzeichnet, daß sich die ein¬ ander zugeordneten Konusflächen der Mutter (3) und des Gehäuses (2) zumindest über die halbe Länge der Mutter (3) bzw. des Ge¬ häuses (2) erstrecken und daß die Mutter (3) in zwei Segmente (3a, 3b) unterteilt ist, wobei sich die Gewindegänge (32) der Mutter (3) nur in den beiden an die Normalebene auf die Teilungsebene anliegenden Bereichen befinden, wogegen die an die Teilungsebene anliegenden Bereiche von Gewindegängen freigehalten sind.1. Device for fastening two components to one another, consisting of a screw bolt formed with a screw thread and a nut formed with a thread corresponding to the thread of the screw bolt, which is divided into several segments and which is located within a housing, the outer surface the nut and the inner surface of the housing are formed with conical surfaces of the same type and the nut is assigned a spring, by means of which the segments are loaded on their abutting position, characterized in that the cone surfaces of the nut assigned to one another ( 3) and the housing (2) extend at least over half the length of the nut (3) or of the housing (2) and that the nut (3) is divided into two segments (3a, 3b), with the threads (32) of the nut (3) are only in the two areas adjacent to the normal plane on the division plane, whereas the areas adjacent to the parting plane are kept free of thread turns. 2. Einrichtung nach Patentanspruch 1, dadurch gekennzeichnet, daß sich die Konusflächen (22, 31) über zumindest nahezu die gesamten Längen des Gehäuses (2) bzw. der Mutter (3) erstrecken.2. Device according to claim 1, characterized in that the conical surfaces (22, 31) extend over at least almost the entire lengths of the housing (2) or the nut (3). 3. Einrichtung nach einem der Patentansprüche 1 und 2, da¬ durch gekennzeichnet, daß die Konusflächen (22, 31) mit der Schraubachse einen Winkel von 7β bis 15°, vorzugsweise einen Winkel von 10", einschließen. 3. Device according to one of claims 1 and 2, da¬ characterized in that the conical surfaces (22, 31) with the screw axis include an angle of 7 β to 15 °, preferably an angle of 10 ". 4. Einrichtung nach einem der Patentansprüche 1 bis 3, da¬ durch gekennzeichnet, daß sich die Gewindegänge (32) in den Bereichen der Normalebene auf die Teilungsebene über einen Winkel von 90* bis 120" erstrecken.4. Device according to one of claims 1 to 3, da¬ characterized in that the threads (32) extend in the areas of the normal plane to the parting plane over an angle of 90 * to 120 ". 5. Einrichtung nach einem der Patentansprüche 1 bis 4, da¬ durch gekennzeichnet, daß an das dem Bolzenkopf (11) abgewandte Ende der Mutter (3) eine Druckfeder (4) od.dgl. anliegt.5. Device according to one of claims 1 to 4, da¬ characterized in that on the bolt head (11) facing away from the end of the nut (3), a compression spring (4) or the like. is present. 6. Einrichtung nach Patentanspruch 5, dadurch gekennzeichnet, daß das Gehäuse (2) an seinem vom Bolzenkopf (11) abliegenden Ende mit einem nach innen abragenden Flansch (23) ausgebildet ist, an welche die Druckfeder (4) zur Anlage kommt.6. Device according to claim 5, characterized in that the housing (2) at its end remote from the bolt head (11) is formed with an inwardly projecting flange (23) to which the compression spring (4) comes to rest. 7. Einrichtung nach einem der Patentansprüche 1 bis 6, da¬ durch gekennzeichnet, daß die dem Bolzenkopfköpf (11) zugewandten Flächen des Gewindes des Schraubbolzens (1) gegenüber der Normalebene auf die Schraubenachse einen Winkel von 2° bis 5° und die abgewandten Flächen des Gewindes gegenüber der Normalebene auf die Schraubachse einen Winkel von 15" bis 45° einschließen. 7. Device according to one of claims 1 to 6, da¬ characterized in that the bolt head (11) facing surfaces of the thread of the screw bolt (1) with respect to the normal plane on the screw axis an angle of 2 ° to 5 ° and the surfaces facing away of the thread to the screw axis form an angle of 15 "to 45 ° with respect to the normal plane.
PCT/AT1995/000176 1994-09-15 1995-09-05 Device for fastening two components to each other Ceased WO1996008659A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU32463/95A AU3246395A (en) 1994-09-15 1995-09-05 Device for fastening two components to each other

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT176394A AT401189B (en) 1994-09-15 1994-09-15 DEVICE FOR FASTENING TWO COMPONENTS TOGETHER
ATA1763/94 1994-09-15

Publications (1)

Publication Number Publication Date
WO1996008659A1 true WO1996008659A1 (en) 1996-03-21

Family

ID=3520489

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AT1995/000176 Ceased WO1996008659A1 (en) 1994-09-15 1995-09-05 Device for fastening two components to each other

Country Status (3)

Country Link
AT (1) AT401189B (en)
AU (1) AU3246395A (en)
WO (1) WO1996008659A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0887566A1 (en) * 1997-06-24 1998-12-30 Emhart Inc. Press nut
EP1282781A4 (en) * 2000-05-18 2003-06-04 Mun Yong Park Anchor and nut assembly
EP1103734A4 (en) * 1999-06-04 2004-03-24 Nhk Spring Co Ltd SIMPLIFIED TIGHTENING DEVICE
DE102004025491A1 (en) * 2004-05-21 2005-12-15 Fischerwerke Artur Fischer Gmbh & Co. Kg Spreader-anchor, has spreader body with shaft and spreader cover, and locking unit suspended on shaft and automatically held in shaft, where cover can be displaced on shaft

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1014736C2 (en) * 2000-03-23 2001-09-10 Flamco Bv Plug-in locking element.

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB506646A (en) * 1937-11-30 1939-05-30 Pirelli General Cable Works Improvements in or relating to joints for rods or tubes
US3157215A (en) * 1961-01-10 1964-11-17 Victor F Zahodiakin Quick-locking fastener with prevailing torque
DE1188378B (en) * 1958-06-02 1965-03-04 Victor Filippovitch Zahodiakin Fastening device
US4363164A (en) * 1980-04-09 1982-12-14 Mitsuchi Corporation Device for removing dump nut from bolt

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB506646A (en) * 1937-11-30 1939-05-30 Pirelli General Cable Works Improvements in or relating to joints for rods or tubes
DE1188378B (en) * 1958-06-02 1965-03-04 Victor Filippovitch Zahodiakin Fastening device
US3157215A (en) * 1961-01-10 1964-11-17 Victor F Zahodiakin Quick-locking fastener with prevailing torque
US4363164A (en) * 1980-04-09 1982-12-14 Mitsuchi Corporation Device for removing dump nut from bolt

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0887566A1 (en) * 1997-06-24 1998-12-30 Emhart Inc. Press nut
EP1103734A4 (en) * 1999-06-04 2004-03-24 Nhk Spring Co Ltd SIMPLIFIED TIGHTENING DEVICE
EP1282781A4 (en) * 2000-05-18 2003-06-04 Mun Yong Park Anchor and nut assembly
DE102004025491A1 (en) * 2004-05-21 2005-12-15 Fischerwerke Artur Fischer Gmbh & Co. Kg Spreader-anchor, has spreader body with shaft and spreader cover, and locking unit suspended on shaft and automatically held in shaft, where cover can be displaced on shaft

Also Published As

Publication number Publication date
AU3246395A (en) 1996-03-29
AT401189B (en) 1996-07-25
ATA176394A (en) 1995-11-15

Similar Documents

Publication Publication Date Title
DE1450386B2 (en) THREAD SEALING RING
EP0687822A2 (en) Fastening device
EP0788585A1 (en) Securing ring, device for fitting it and process therefor
WO2004088152A1 (en) Locking ring
EP0306738A1 (en) Device for pressing in or pulling off bearings or bushings, especially for axle bearings and/or hubs of motor car wheel flanges
DE1963299B2 (en) CONNECTION FOR AT LEAST ONE PRESSURIZED TUBULAR ELEMENT HAVING A SMOOTH END
EP0876556A1 (en) Ring-shaped safety element
AT401189B (en) DEVICE FOR FASTENING TWO COMPONENTS TOGETHER
DE3038774A1 (en) SCREW DRIVE WITH DOUBLE NUT
EP1117151A1 (en) Cable shoe
EP0197249B1 (en) Bayonet-like coupling for connecting two hollow tubular parts
EP1081296B1 (en) Sanitary fitting
EP0846908A1 (en) Connection between pipe and component.
DE3807626C2 (en)
DE19651918A1 (en) Axially adjustable support component for motor vehicle components
EP0999372A1 (en) Ball-joint
EP1006307A1 (en) Pin-and-socket coupling
DE3418993C2 (en) Internal clamping set
DE3521176A1 (en) Operating element for a switching apparatus
DE3247673A1 (en) Plug socket
DE3542603C2 (en) Electro-hydraulic switching device
DE19654581C1 (en) Screw with eccentric sleeve
EP0121580A1 (en) Manual paper perforator
CH639344A5 (en) Rupture safeguard on a transportable low pressure container
DE2905375A1 (en) Panel mounting rotary cam switch - has split body with grooved ends for two locking rings for easy assembly

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AM AT AU BB BG BR BY CA CH CN CZ DE DK EE ES FI GB GE HU IS JP KE KG KP KR KZ LR LT LU LV MD MG MN MW MX NO NZ PL PT RO RU SD SE SG SI SK TJ TM TT UA UG US UZ VN

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): KE MW SD SZ UG AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN ML MR NE SN TD TG

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

122 Ep: pct application non-entry in european phase