WO2013104352A1 - Befestigungselement - Google Patents
Befestigungselement Download PDFInfo
- Publication number
- WO2013104352A1 WO2013104352A1 PCT/DE2012/200088 DE2012200088W WO2013104352A1 WO 2013104352 A1 WO2013104352 A1 WO 2013104352A1 DE 2012200088 W DE2012200088 W DE 2012200088W WO 2013104352 A1 WO2013104352 A1 WO 2013104352A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fastening element
- profiled shaft
- shaft
- thread
- smaller
- Prior art date
Links
- 238000010079 rubber tapping Methods 0.000 claims description 3
- 230000001154 acute effect Effects 0.000 claims description 2
- 230000006978 adaptation Effects 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 238000003466 welding Methods 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
- F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
- F16B21/02—Releasable fastening devices locking by rotation
-
- 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
- F16B37/085—Nuts engaged from the end of the bolt, e.g. axially slidable nuts with at least one unthreaded portion in both the nut and the bolt
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
- F16D1/06—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
- F16D1/064—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end non-disconnectable
- F16D1/072—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end non-disconnectable involving plastic deformation
-
- 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
- F16B37/002—Nuts or like thread-engaging members cutting threads during screwing; removing paint or dirt layers covering threaded shanks
-
- 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
- F16B4/00—Shrinkage connections, e.g. assembled with the parts at different temperature; Force fits; Non-releasable friction-grip fastenings
- F16B4/004—Press fits, force fits, interference fits, i.e. fits without heat or chemical treatment
Definitions
- the present invention relates to a fastening element for fastening on a profiled shaft by rotating the fastening element relative to the profiled shaft in a circumferential direction of the profiled shaft, which has over its outer circumference a number of alternating regions of larger and smaller outer diameter.
- the task is often to attach a component or an assembly on a profile shaft.
- the attachment should as possible even allow tolerance compensation, have a high withdrawal force and make no pre-machining of the shaft required.
- this object is achieved by a fastener for attachment to a profile shaft by turning the fastener relative to the profile shaft in a circumferential direction of the profiled shaft, which has a number of alternating areas larger and smaller outside diameter over its outer circumference, in which the fastener with a round passage opening for the profile shaft is provided whose inner diameter is greater than the largest outer diameter of the profiled shaft, and in that the passage opening is provided with a number of smaller outer diameter regions on the profile shaft corresponding number of clamping elements, each extending over a smaller angle in the circumferential direction of the passage opening extend as the areas of smaller outer diameter on the profiled shaft, and project in the passage opening so far that they leave there an inner diameter smaller than the g larger outer diameter of the profiled shaft but larger than the smaller outer diameter of the profiled shaft.
- the clamping elements may be formed as clamping wedges, which extend perpendicular to the axis of rotation of the profile shaft, and extending less and less in the direction of rotation in the passage opening.
- clamping elements can be formed as circular sectors of a thread of a broken screw thread.
- clamping elements extend at a small acute angle obliquely to the perpendicular to the axis of rotation of the profile shaft.
- the interrupted screw thread can preferably be formed as a self-tapping thread.
- clamping elements as clamping wedges, it is preferred if they have a semicircular cross-section. Alternatively, a trapezoidal cross-section may also be provided.
- the outer circumference of the fastening element has plane force application surfaces.
- Figure 1 is a sectional view of a profile shaft on which an inventive fastener to be placed.
- FIG. 2 is a sectional view along the axis of rotation of the passage opening of a fastening element according to the invention with screw thread;
- FIG. 3 shows a representation of the fastening element of FIG. 2 from the front
- FIG. 4 shows a further fastening element according to the invention, in which the clamping elements are designed as clamping wedges, cut along the axis of rotation;
- FIG. 5 shows the fastening element of FIG. 4 from the front
- FIG. 6 shows detail A of FIG. 4.
- FIG. 1 serves to explain the object of the present invention. It is intended to provide a fastening element which can be slid onto a profiled shaft 10, as shown in FIG. 1 from the front, and this fastening element according to the invention is intended to be fastened at any point on the profiled shaft 10 without further preprocessing of the profiled shaft 10 by simple means can be, and then have a high peel force.
- the profiled shaft 10 has in each case three regions 12 with a larger outer diameter and three further regions 14 with a smaller outer diameter, which alternate in each case.
- the profiled shaft 10 is shown here hollow, but the present invention is equally applicable to waves of solid material.
- the present invention with appropriate adaptation to profile waves with a different number of alternating areas larger and smaller outer diameter 12, 14 are also used, for example, profile waves with 2, 4, 5, 6, etc. areas larger and smaller outer diameter.
- FIG. 2 shows a first possible embodiment of the present invention.
- An inventive fastener has the shape of a hollow cylinder or a short cut piece of pipe. In its center, it has a concentric passage opening 21, whose inner diameter is greater than the largest outer diameter of the profiled shaft 10. In this passage opening 21 project with an internally threaded portions 24 into it, and reduce in their areas the inner diameter to a value between the outer diameter of Sections 12 of the profiled shaft 10 with the larger outer diameter and the outer diameter of the portions 14 of the profiled shaft 10 with the smaller outer diameter.
- the fastening element 20 according to the invention is shown cut along its axis of rotation, so that the alternating provided with an internal thread portions 24 and the sections 26, in which the internal thread is interrupted, are clearly visible.
- each thread 28 is arranged next to one another along the course of the rotation axis 22, so that they run parallel.
- the internal thread 24 formed from these threads 28 is formed as a self-tapping thread. In this case, the height of the threads on the Einschraubseite out, that is decrease in the screwing, so that the height of the individual sections of the thread increases counter to the screwing.
- the fastener 20 may be provided with planar force-engaging surfaces 30 on its outer periphery to facilitate assembly.
- it can be provided with any other type of commercially available drives (for example, square, hexagonal, hexalobular, etc.).
- the other outer geometry of the fastener 20 can be chosen freely.
- the necessary minimum diameter for the sections 26 must be greater than the largest outer diameter of the profiled shaft 10.
- the circumferential extent of the sectors 12 of the profile shaft 10 is significantly less than 60 degrees, here the sections with internal thread 24 and the exposed portions 26 are formed with larger diameter alternately each over a circular arc of 60 ° at the inner diameter of the fastener 20 of the invention ,
- FIG. 3 also clearly shows how planar key surfaces 30 on the fastening element 20 according to the invention are provided as external force attacks.
- FIG. 4 shows a further embodiment of a fastening element 40 according to the invention, in which the clamping elements are designed as clamping wedges 44. These run perpendicular to the axis of rotation 42 of the fastening element 40 and extend in the direction of rotation less and less in the passage opening 41 into it.
- these clamping wedges 44 are formed in adaptation to the shape of the profile shaft 10 each have a circular sector of 60 degrees, while between a further circular sector of 60 ° remains free and has a larger inner diameter than the outer diameter of the sections 12 of the profile shaft 10 with the larger outer diameter.
- the fastener 40 is formed with plane force application surfaces 50 as external force attack for a key.
- the clamping wedges 44 have a semicircular cross-section 48 whose radius points inwards into the passage opening.
- the embodiment of the cross section of the clamping wedges 44 is also conceivable as a trapezoidal shape, e.g. If the profiled shaft 10 is too thin-walled there is a risk that the profile shaft 10 is weakened too much with the radii of the clamping wedges 44 or the thread 28, or an average of the profiled shaft 10 takes place.
- the profiled shaft 10 is deformed, and not the surface of the profiled shaft 10 is separated.
- the fastener 20, 40 is pushed onto the shaft 10, placed in the mounting position, and fixed by rotation about preferably about 45 °.
- the fastening element 20, 40 according to the invention can be pushed as a shaft locking ring to the component to be fastened, whereby a significant tolerance compensation can be achieved.
- the wedges 44 or the thread 24 dig into the shaft 10, whereby a positive connection between the shaft 10 and fastener 20, 40 is generated, which has a high withdrawal force from the shaft 10.
- the region of the shaft 10 in which the fastening element 20, 40 is to be mounted to have an external thread, as is required in the prior art.
- a frictional connection in the state of the art is used here for the first time to form a positive connection according to the invention which nevertheless does not require pre-machining of the shaft, as would be necessary when using a prior art nut.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Clamps And Clips (AREA)
- Dowels (AREA)
Abstract
Description
Claims (9)
- Befestigungselement (20; 40) zur Befestigung auf einer Profilwelle (10) durch Verdrehen des Befestigungselementes (20; 40) gegenüber der Profilwelle (10) in einer Umfangsrichtung der Profilwelle (10), die über ihren Außenumfang eine Anzahl abwechselnder Bereiche größeren (12) und kleineren (14) Außendurchmessers aufweist, dadurch gekennzeichnet, dass das Befestigungselement (20; 40) eine runde Durchtrittsöffnung (21; 41) für die Profilwelle (10) aufweist, deren Innendurchmesser größer ist als der größte Außendurchmesser der Profilwelle (10), und dass die Durchtrittsöffnung (21; 41) mit einer der Anzahl der Bereiche kleineren Außendurchmessers (14) auf der Profilwelle (10) entsprechenden Anzahl Klemmelemente (24; 44) versehen ist, die sich in Umfangsrichtung der Durchtrittsöffnung (21; 41) jeweils über einen geringeren Winkel erstrecken als die Bereiche (14) kleineren Außendurchmessers auf der Profilwelle (10), und in der Durchtrittsöffnung (21; 41) soweit vorstehen, dass sie dort einen Innendurchmesser frei lassen, der kleiner als der größere Außendurchmesser der Profilwelle (10), aber größer als der kleinere Außendurchmesser der Profilwelle (10) ist.
- Befestigungselement (40) nach Anspruch 1, dadurch gekennzeichnet, dass die Klemmelemente (44) als Klemmkeile ausgebildet sind, die senkrecht zur Rotationsachse der Profilwelle (10) verlaufen, und die sich in Richtung der Verdrehung immer weniger weit in die Durchtrittsöffnung (41) erstrecken.
- Befestigungselement (20) nach Anspruch 1, dadurch gekennzeichnet, dass die Klemmelemente (24) als Kreissektoren eines Gewindeganges (28) eines unterbrochenen Innengewindes ausgebildet sind.
- Befestigungselement (20) nach Anspruch 3, dadurch gekennzeichnet, dass die Klemmelemente (24) in einem kleinen spitzen Winkel schräg zur Senkrechten auf der Rotationsachse der Profilwelle (10) verlaufen.
- Befestigungselement (20) nach Anspruch 3 oder 4, dadurch gekennzeichnet, dass das unterbrochene Innengewinde als selbstfurchendes Gewinde, gewindeschneidend oder gewindeformend, ausgebildet ist.
- Befestigungselement (20) nach Anspruch 3, 4 oder 5, dadurch gekennzeichnet, dass mehrere Kreissektoren des Gewindeganges (28) in Verlaufsrichtung der Rotationsachse der Profilwelle (10) nebeneinander angeordnet sind.
- Befestigungselement (20) nach Anspruch 6, dadurch gekennzeichnet, dass die Höhe der nebeneinander angeordneten Kreissektoren des Gewindeganges (28) entgegen der Einschraubrichtung zunimmt.
- Befestigungselement (40) nach Anspruch 2, dadurch gekennzeichnet, dass die Klemmelemente (44) einen halbkreisförmigen Querschnitt (48) aufweisen.
- Befestigungselement (20; 40) nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass der Außenumfang des Befestigungselementes (20; 40) plane Kraftangriffsflächen (30; 50) aufweist.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112012005618.3T DE112012005618A5 (de) | 2012-01-10 | 2012-12-27 | Befestigungselement |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201220000142 DE202012000142U1 (de) | 2012-01-10 | 2012-01-10 | Befestigungselement |
DE202012000142.6 | 2012-01-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013104352A1 true WO2013104352A1 (de) | 2013-07-18 |
Family
ID=45832984
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2012/200088 WO2013104352A1 (de) | 2012-01-10 | 2012-12-27 | Befestigungselement |
Country Status (2)
Country | Link |
---|---|
DE (2) | DE202012000142U1 (de) |
WO (1) | WO2013104352A1 (de) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4231320A1 (de) * | 1992-09-18 | 1994-03-24 | Hans Kuehl | Vorrichtung zum lösbaren Verbinden von mindestens zwei Gegenständen |
DE4400847A1 (de) * | 1994-01-14 | 1995-07-20 | Karl Fischer | Schnellverschlußschraube zum schnellen Verschrauben von Montageteilen |
WO2003001068A2 (en) * | 2001-06-21 | 2003-01-03 | Yeong-Hoon Kim | Bolt and nut |
WO2009080001A1 (de) * | 2007-12-21 | 2009-07-02 | Ifm Electronic Gmbh | Verfahren und vorrichtung zum herstellen eines gewindes sowie bauteil und gerät |
-
2012
- 2012-01-10 DE DE201220000142 patent/DE202012000142U1/de not_active Withdrawn - After Issue
- 2012-12-27 DE DE112012005618.3T patent/DE112012005618A5/de not_active Withdrawn
- 2012-12-27 WO PCT/DE2012/200088 patent/WO2013104352A1/de active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4231320A1 (de) * | 1992-09-18 | 1994-03-24 | Hans Kuehl | Vorrichtung zum lösbaren Verbinden von mindestens zwei Gegenständen |
DE4400847A1 (de) * | 1994-01-14 | 1995-07-20 | Karl Fischer | Schnellverschlußschraube zum schnellen Verschrauben von Montageteilen |
WO2003001068A2 (en) * | 2001-06-21 | 2003-01-03 | Yeong-Hoon Kim | Bolt and nut |
WO2009080001A1 (de) * | 2007-12-21 | 2009-07-02 | Ifm Electronic Gmbh | Verfahren und vorrichtung zum herstellen eines gewindes sowie bauteil und gerät |
Also Published As
Publication number | Publication date |
---|---|
DE112012005618A5 (de) | 2014-09-18 |
DE202012000142U1 (de) | 2012-02-13 |
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