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WO1996008659A1 - Dispositif permettant d'assembler deux elements constitutifs - Google Patents

Dispositif permettant d'assembler deux elements constitutifs 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)
English (en)
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/fr
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

L'invention concerne un dispositif permettant d'assembler deux éléments constitutifs (10, 20), qui comprend un boulon (1) pourvu d'un filet (12) et un écrou (3) pourvu d'un filet correspondant à celui du boulon (1). Cet écrou est divisé en plusieurs segments (3a, 3b) et se trouve dans un boîtier (2), la surface extérieure de l'écrou (3) et la surface intérieure du boîtier (2) présentant des surfaces coniques diamétralement opposées. Un ressort (4) associé à l'écrou (3) sollicite les segments (3a, 3b) dans la position où ils se trouvent en appui les uns sur les autres. Les surfaces coniques associées les unes aux autres de l'écrou (3) et du boîtier (2) s'étendent au moins sur la moitié de la longueur de l'écrou (3) ou du boîtier (2), et l'écrou (3) est divisé en deux segments (3a, 3b). La partie filetée de l'écrou (3) ne se trouve que dans les deux zones adjacentes au plan perpendiculaire au plan de division, alors que les zones adjacentes au plan de division ne comportent pas de filetage.
PCT/AT1995/000176 1994-09-15 1995-09-05 Dispositif permettant d'assembler deux elements constitutifs Ceased WO1996008659A1 (fr)

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 (de) 1994-09-15 1994-09-15 Einrichtung zur befestigung von zwei bauteilen aneinander
ATA1763/94 1994-09-15

Publications (1)

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

Family

ID=3520489

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AT1995/000176 Ceased WO1996008659A1 (fr) 1994-09-15 1995-09-05 Dispositif permettant d'assembler deux elements constitutifs

Country Status (3)

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

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0887566A1 (fr) * 1997-06-24 1998-12-30 Emhart Inc. Ecrou retenu dans un siège-écrou enfoncé
EP1282781A4 (fr) * 2000-05-18 2003-06-04 Mun Yong Park Boulon d'ancrage
EP1103734A4 (fr) * 1999-06-04 2004-03-24 Nhk Spring Co Ltd Dispositif de serrage simplifie
DE102004025491A1 (de) * 2004-05-21 2005-12-15 Fischerwerke Artur Fischer Gmbh & Co. Kg Spreizanker

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1014736C2 (nl) * 2000-03-23 2001-09-10 Flamco Bv Insteekborgelement.

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 (de) * 1958-06-02 1965-03-04 Victor Filippovitch Zahodiakin Befestigungsvorrichtung
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 (de) * 1958-06-02 1965-03-04 Victor Filippovitch Zahodiakin Befestigungsvorrichtung
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 (fr) * 1997-06-24 1998-12-30 Emhart Inc. Ecrou retenu dans un siège-écrou enfoncé
EP1103734A4 (fr) * 1999-06-04 2004-03-24 Nhk Spring Co Ltd Dispositif de serrage simplifie
EP1282781A4 (fr) * 2000-05-18 2003-06-04 Mun Yong Park Boulon d'ancrage
DE102004025491A1 (de) * 2004-05-21 2005-12-15 Fischerwerke Artur Fischer Gmbh & Co. Kg Spreizanker

Also Published As

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

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