EP0591507A1 - Element d'assemblage par serrage du type rivet borgne - Google Patents

Element d'assemblage par serrage du type rivet borgne

Info

Publication number
EP0591507A1
EP0591507A1 EP93909830A EP93909830A EP0591507A1 EP 0591507 A1 EP0591507 A1 EP 0591507A1 EP 93909830 A EP93909830 A EP 93909830A EP 93909830 A EP93909830 A EP 93909830A EP 0591507 A1 EP0591507 A1 EP 0591507A1
Authority
EP
European Patent Office
Prior art keywords
drilling
diameter
mandrel
sleeve
drilling part
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.)
Withdrawn
Application number
EP93909830A
Other languages
German (de)
English (en)
Inventor
Erich Palm
Daniel Gasser
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.)
SFS Industrie Holding AG
Original Assignee
SFS Industrie Holding AG
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 SFS Industrie Holding AG filed Critical SFS Industrie Holding AG
Publication of EP0591507A1 publication Critical patent/EP0591507A1/fr
Withdrawn legal-status Critical Current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
    • F16B19/00—Bolts without screw-thread; Pins, including deformable elements; Rivets
    • F16B19/04—Rivets; Spigots or the like fastened by riveting
    • F16B19/08—Hollow rivets; Multi-part rivets
    • F16B19/083—Self-drilling rivets

Definitions

  • the invention relates to a blind rivet-type clamp connector, consisting of a deformable sleeve part, a mandrel part that can be inserted into the sleeve part and is operatively connected to the sleeve part at least during the setting process, and a drilling part.
  • a rivet connector has already become known (DE-C-40 03 373), which consists of a rivet sleeve and a rivet mandrel that can be inserted into the rivet sleeve.
  • the rivet sleeve and the rivet mandrel are operatively connected to one another via a thread.
  • the enlarged head attachment is pressed against one end of the sleeve, so that it expands.
  • the present invention has therefore set itself the task of a blind rivet
  • drilling part is held so that it can be displaced or stripped in the axial direction towards the free end of the clamping connector by force action which can be triggered during the setting process thereof.
  • the constructive variant is particularly advantageous in that the axial action of force on the drilling part can be triggered by the axial relative movement between the sleeve part and the mandrel part caused during the setting process of the clamping connector.
  • the axial displacement between the sleeve part and the mandrel part which arises during the deformation of the blind rivet-type clamping connector during the setting process is therefore used, in order to thereby push away or strip off the drilling part in the axial direction. This measure is the only way to ensure that the drilling part can be removed without additional assembly or disassembly work.
  • the drilling part is non-positively seen in the axial direction and positively on the sleeve part and / or on the mandrel part when viewed in the direction of rotation, the drilling part facing away from the drilling tip. least has an approximately radially oriented stop surface, which protrudes into the axial range of movement of the mandrel part or the sleeve part.
  • the drilling part protrude radially in at least a small area into the movement range of the mandrel or sleeve part which is movable relative thereto, in order to thereby cause the drilling part to be pushed or stripped off during the setting process.
  • drilling parts are used only once, because the drilling part only has to create a hole for receiving the blind rivet-type clamp connector, the mutual connection does not have to be rigid. It is therefore only necessary that the drilling part be held practically captive, that is to say held non-positively in the axial direction. In order to transmit the torque during the drilling process, a form-fitting mounting of the drilling part, as seen in the direction of rotation, is of course necessary.
  • the drilling part is usually made of a different material than the sleeve and the mandrel part, since the sleeve part is made of an easily deformable material, e.g. Aluminum, and the mandrel part may have to be made of a stainless material to prevent rusting on a weathered outside.
  • the drilling part on the other hand, must consist of a hardenable steel, that is, a carbon steel, otherwise it would not be possible to produce the bores in the parts to be fastened to one another.
  • the mandrel part consists of a bolt-shaped shaft and a head attachment that receives the drilling part larger in diameter than the diameter of the shaft, and that the drilling part at least on a part of the circumference of the head attachment radially extends directly over the drilling part subsequent section of the head approach protrudes.
  • the drilling part is designed as a platelet-shaped stamping part, both side edges of the drilling part projecting radially beyond the adjoining section of the head attachment of the mandrel part. This results in an attack or an axial application of force at two diametrically opposite points, so that the inserted drill part cannot tilt. This ensures reliable displacement or stripping of the drilling part.
  • the head attachment be designed as a collar with a larger diameter than the shaft, the end region of the head attachment directly facing the drilling part being again tapered in diameter.
  • these protruding areas of the drilling part do not necessarily have to protrude beyond the outer diameter of the head extension of the mandrel part. It is therefore sufficient if the section of the head attachment directly adjoining the drilling part has a correspondingly smaller diameter.
  • the sleeve part is widened by the head attachment of the mandrel part, the sleeve part is probably widened, but the tensions in this sleeve part result in the surface contour of the head attachment following the surface contour of the head attachment, that is to say in diameter, when the diameter of the head attachment is subsequently reduced reduced.
  • the diameter of the head attachment of the mandrel part approximately corresponds to the outer diameter of the sleeve part and thus the drilling diameter, the section of the head attachment directly adjoining the drilling part being smaller in diameter than the drilling diameter.
  • Such an embodiment is particularly expedient for production reasons, since the individual diameters can be matched to one another without the need for particularly protruding laterally protruding sections of the drilling part.
  • the present invention can also be used to press or wipe off the drilling part axially in one operation by setting the blind rivet-type clamp connector.
  • Fig. 1 is a blind rivet-type clamp connector in front view
  • FIGS. 1 and 2 shows a partial section of the clamp connector according to FIGS. 1 and 2 during the setting process
  • Fig. 4 shows an embodiment of a clamp fastener
  • 5 shows this clamping fastener in section shortly before the final completion of the setting operation
  • FIG. 7 shows a further embodiment variant of a clamp connector, shown partly in section
  • the blind rivet-type clamp connector 1 essentially consists of a deformable sleeve part 2, which can have a stop flange 3, a mandrel part 4 which can be inserted into the sleeve part 2 and is operatively connected to the sleeve part 2 at least during the setting process, this depending on
  • the type of blind rivet-type clamp connector can be done in a wide variety of ways.
  • the drilling part 5 is designed as a platelet-shaped stamped part, but the measures according to the invention can also be used with a drilling part which is cylindrical in cross section.
  • the present invention is intended to ensure that the drilling part 5 is displaced or stripped in the direction of the arrow 6 during the setting process, so that the projecting drilling part is no longer in operative connection with the blind rivet-type clamp connector after the setting process has ended.
  • the drilling Part 5 (as can be seen, for example, from FIG. 6) in the axial direction as seen in a non-positive manner and in the direction of rotation held positively on the sleeve part 2.
  • the drilling part 5 engages with a corresponding extension 7 in a recess 8 on the mandrel part 4, the upper lateral edge sections 9 of the drilling part 5 engaging in a radially continuous slot 10, so that here the positive connection for the rotary driving is guaranteed.
  • the type of mutual connection of one part with the drilling part 5 can of course be changed in all possible ways.
  • the drilling part 5 facing away from the drilling tip 11 has at least one approximately radially oriented stop surface 12 which projects into the axial range of movement of the mandrel part 4 or the sleeve part 2, depending on which part the drilling part 5 now is held.
  • an axial force is exerted on the radially projecting abutment surfaces, which cause the drilling part 5 to be pushed or stripped away.
  • the stop surfaces 12 do not have to be aligned exactly radially, that is to say at right angles to the central axis of the clamp connector 1.
  • stop surfaces can also run at a correspondingly acute angle, since it is only necessary per se to have corresponding stop surfaces, protruding stop cams or the like. It would also be conceivable that only the area forming the abutment surfaces 12 protrudes correspondingly radially, and that the adjoining or the area between the abutment surfaces 12 and the drill bit 11 is correspondingly reduced in diameter.
  • the mandrel part 4 consists of a bolt-shaped shaft 13 and a head attachment 14 which is larger in diameter than the diameter of the shaft 13 and accommodates the drilling part 5.
  • This head attachment 14 is multi-stage in this embodiment expanded.
  • the drilling part 5 projects with the stop faces 12 radially on both sides beyond the section of the head attachment 14 which directly adjoins the drilling part 5. It would only be necessary for the drilling part 5 to protrude radially on one side, but this is disadvantageous in that it could cause the drilling part to tilt during the stripping process.
  • the sleeve part 2 expands as a result of the penetrating head attachment 14, as shown in FIG this can be seen in FIG. 3. With its inner diameter, however, the sleeve part 2 always lies snugly against the surface of the head attachment 14, which can be justified by the internal stresses in the widened sleeve part.
  • the structure and the effect are similar to the embodiment according to FIGS. 1 to 3, but the head attachment 14 is designed as a collar with a larger diameter than the shaft 13.
  • the end region 17 of the head attachment which faces the drilling part 5 is again tapered in diameter. It is an advantageous embodiment if the diameter of the head attachment 1 approximately corresponds to the outer diameter of the sleeve part 2 and thus the drilling diameter, the section 17 of the head attachment 14 directly adjoining the drilling rig 5 being smaller in diameter than the drilling diameter.
  • the drilling part 5 with the stop surfaces 12 projects radially at least beyond the diameter of the section 17, since during the setting process and thus when the sleeve part 2 is expanded, this sleeve part exactly matches the contour of the head attachment 14 and also the section 17 follows.
  • the sleeve part also joins the head extension 14 with a larger diameter, in turn around the section 17 with a smaller diameter, so that the lower end rich of the sleeve part 2 in turn reaches the stop surfaces 12 of the drilling part 5 and can push it away in the axial direction.
  • the mandrel part 4 has a shaft 13 or a head attachment 14 with a cross-sectional shape that deviates from the circular shape.
  • these sections have a square cross section.
  • any other cross-sectional shape is possible, for example webs or grooves running in the longitudinal direction on the surface of the mandrel part, which in turn interact with a corresponding surface design on the inside of the sleeve part.
  • Such a variant is particularly advantageous if the torque for the drilling process is to be transmitted both via the mandrel part and via the sleeve part.
  • corresponding stop surfaces 12 of the drilling part 5 protrude in the radial direction over the head attachment 14, so that the sleeve part which penetrates during the setting process along the head attachment 14 abuts with its free end 16 against these stop surfaces 12 of the drilling part 5.
  • the sleeve part 2 and the mandrel part 4 are operatively connected to one another via a thread and in which the mandrel part moves relative to the sleeve part in the axial direction inwards in order to set the clamping connector, there is the possibility that the drilling part held in the sleeve part is displaced in the axial direction and stripped off.
  • the measures according to the invention can therefore be used whether the setting process of the blind rivet-type clamp connector is carried out by an axial pulling or by an axial movement as a result of a threaded connection.
  • the measures according to the invention can be applied to blind rivet-type clamp connectors of any material selection, but there must always be the guarantee that the relative movement in the axial direction between the drill part and either the mandrel or sleeve part exerts an axial force on the drill part can be used to push it away in the axial direction or to strip it off.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Insertion Pins And Rivets (AREA)

Abstract

Un élément d'assemblage par serrage (1) de type rivet borgne comprend une douille déformable (1), une tige (4) et une pièce de perçage (5). La pièce de perçage (5) est retenue de manière mobile ou amovible dans le sens axial (6) par rapport à l'extrémité libre de l'élément d'assemblage par serrage. Pendant la pose, la zone terminale libre (16) du manchon (2) coopère avec des surfaces d'appui (12) radialement saillantes de la pièce de perçage, de sorte qu'une force axiale est exercée sur ces surfaces d'appui (12) de la pièce de perçage (5). A mesure que la pose se poursuit, la pièce de perçage (5) est ainsi déplacée ou enlevée dans le sens axial, sous l'effet de cette force.
EP93909830A 1992-04-27 1993-04-20 Element d'assemblage par serrage du type rivet borgne Withdrawn EP0591507A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4213862 1992-04-27
DE4213862A DE4213862C2 (de) 1992-04-27 1992-04-27 Blindnietartiger Klemmverbinder
PCT/EP1993/000959 WO1993022567A1 (fr) 1992-04-27 1993-04-20 Element d'assemblage par serrage du type rivet borgne

Publications (1)

Publication Number Publication Date
EP0591507A1 true EP0591507A1 (fr) 1994-04-13

Family

ID=6457610

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93909830A Withdrawn EP0591507A1 (fr) 1992-04-27 1993-04-20 Element d'assemblage par serrage du type rivet borgne

Country Status (6)

Country Link
US (1) US5472303A (fr)
EP (1) EP0591507A1 (fr)
JP (1) JPH06507964A (fr)
AU (1) AU4061993A (fr)
DE (1) DE4213862C2 (fr)
WO (1) WO1993022567A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5915901A (en) * 1996-07-12 1999-06-29 Asar Group, Inc. Blind setting rivet assembly
ES2290272T3 (es) 2001-01-12 2008-02-16 Abeo, Llc Conjunto remachador de autoacabado y autorroscado.
GB2389398B (en) * 2002-06-06 2005-08-03 Emhart Llc Peel-type blind rivet
TWI301869B (en) * 2003-05-05 2008-10-11 L Pepper Aasgaard A Blind-setting coring rivet assembly
GB2404231B (en) * 2003-07-24 2006-09-06 Newfrey Llc Improved blind fastener and method of setting
US20050117996A1 (en) * 2003-12-02 2005-06-02 Lemire Robert J. Self-drilling fastener
US20060275097A1 (en) * 2005-06-01 2006-12-07 To-Ha Loi Pull nail with chamfered surface head portion
DE102019111484A1 (de) 2019-05-03 2020-11-05 Profil Verbindungstechnik Gmbh & Co. Kg Fügeelement

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE732450C (de) * 1940-10-24 1943-03-03 Matthaei Fa C Niet fuer Riemenverbinder
GB585887A (en) * 1944-08-29 1947-02-27 Albert Ernest Applegate Improvements in screwed bolts
GB865200A (en) * 1959-11-27 1961-04-12 Benjamin George Forman Self-tapping non-conductive screw-fasteners
US3750518A (en) * 1972-06-07 1973-08-07 Illinois Tool Works Self-drilling blind rivet
US3935786A (en) * 1974-11-01 1976-02-03 Illinois Tool Works Inc. Self-drilling rivet
US4293258A (en) * 1977-10-04 1981-10-06 Microdot Inc. Self drilling blind rivet
US4629380A (en) * 1986-01-13 1986-12-16 Aluminum Company Of America Blind setting rivet
DE4003374C1 (fr) * 1990-02-05 1991-05-08 Sfs Stadler Holding Ag, Heerbrugg, Ch
DE4003373C1 (fr) * 1990-02-05 1991-05-08 Sfs Stadler Holding Ag, Heerbrugg, Ch

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9322567A1 *

Also Published As

Publication number Publication date
US5472303A (en) 1995-12-05
DE4213862A1 (de) 1993-10-28
WO1993022567A1 (fr) 1993-11-11
DE4213862C2 (de) 1994-12-15
JPH06507964A (ja) 1994-09-08
AU4061993A (en) 1993-11-29

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