WO2012088449A1 - Dispositif de fixation - Google Patents

Dispositif de fixation Download PDF

Info

Publication number
WO2012088449A1
WO2012088449A1 PCT/US2011/066920 US2011066920W WO2012088449A1 WO 2012088449 A1 WO2012088449 A1 WO 2012088449A1 US 2011066920 W US2011066920 W US 2011066920W WO 2012088449 A1 WO2012088449 A1 WO 2012088449A1
Authority
WO
WIPO (PCT)
Prior art keywords
pin
section
sleeve
head
fastening
Prior art date
Application number
PCT/US2011/066920
Other languages
English (en)
Inventor
Frank Eckstein
Alexander Limpert
Martin Kluge
Original Assignee
Illinois Tool Works Inc.
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 Illinois Tool Works Inc. filed Critical Illinois Tool Works Inc.
Publication of WO2012088449A1 publication Critical patent/WO2012088449A1/fr

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
    • F16B19/10—Hollow rivets; Multi-part rivets fastened by expanding mechanically
    • F16B19/1027—Multi-part rivets
    • F16B19/1036—Blind rivets
    • F16B19/1045—Blind rivets fastened by a pull - mandrel or the like
    • F16B19/1054—Blind rivets fastened by a pull - mandrel or the like the pull-mandrel or the like being frangible

Definitions

  • the invention relates to a device for fastening at least a first component comprising a through opening to at least a second component also comprising a through opening.
  • a device for fastening is used to fasten flat components, such as trim panels, to one another. It is known to connect the two components to each other by riveting. High retention forces, combined with small installation space, are hereby achieved.
  • a drawback is, however, that a nondestructive demounting of the device, and thus of the components, is not possible.
  • the object of the invention is to provide a device of the type stated in the introduction, which device, given simple mounting and high retention forces during operation, in simple manner allows nondestructive demounting .
  • the invention achieves the object by virtue of a device for fastening at least a first component comprising a through opening to at least a second component also comprising a through opening, comprising
  • a fasten 1 bushing with a sleeve section which is designed o be inserted through the through openings the components and with a sleeve head which is designed to bear against a surface of one of the components when the sleeve section is inserted through the through openings of the components, wherein the sleeve section comprises at least one locking section and at least two axially running recesses in its wall, and wherein the sleeve head comprises a through opening aligned with the sleeve section,
  • a fastening pin with a pin section and with a pin head
  • the pin head comprises at least one locking section and wherein stop means are provided between the fastening pin and the fastening bushing
  • the pin section is designed to be inserted through the sleeve section and through the through opening of the sleeve head such that the pin head is firstly also inserted into the sleeve section until reaching the stop formed by the stop means, and subseguently locks with the locking section of the sleeve section upon expansion of the wall of the sleeve section and a herewith associated length reduction of the sleeve section
  • at least one of the locking sections is configured as a thread and engaging means are provided with which the pin head can be screwed out of the sleeve section for demounting .
  • the components to be fastened with the inventive device can in particular be flat components of an automobile, for example trim panels. More than two components can also be connected to each other with the inventive fastening device.
  • the fastening device here basically has the function of a rivet.
  • the sleeve section can in particular have a substantially cylindrical wall, which delimits a cylindrical sleeve opening.
  • the cylindrical wall can be breached by at least two, preferably more than two axial recesses. These enable the expansion of the sleeve section, accompanied at the same time by a reduction in length.
  • the sleeve head has an enlarged cross section in relation to the sleeve section which emanates therefrom, so that the sleeve head, when the sleeve section is inserted fully through the components, bears against one of the components.
  • the pin head at least in the region of its locking section, also has an enlarged cross section in relation to the pin section emanating therefrom.
  • the pin section and/or the pin head can have a cylindrical shape.
  • fastening pin and the fastening bushing prior to mounting on the components and in particular prior to insertion into the through openings of the components, are already slid one into the other, and thus premounted, by the time the stop is reached. It is likewise possible to insert the fastening bushing firstly through the through openings of the components and only subseguently insert the fastening pin in the fastening bushing. In both cases, the pin section, for mounting by means of a suitable tool which can be part, moreover, of the inventive device, is pulled through the fastening section to the point where the locking sections interlock.
  • the pin section and the pin head are here firstly inserted up to the stop and, thereupon into the sleeve section, in particular without deformation of the latter.
  • a deformation of the sleeve section in particular an expansion, then ensues, effected by the force transmission in the region of the stop.
  • the wall of the sleeve section hereupon expands, enabled by the axial recesses, and the sleeve section is considerably reduced in its length. In particular, the length of the sleeve section is reduced in the course of assembly to a fraction of the original length.
  • the installation space of the device in the mounted state is hereby diminished .
  • the assembly can thus be realized, m particular, without a relative rotary movement between the fastening pin and the fastening bushing.
  • the expansion of the sleeve section leads to the device being unable to be pulled back out of the through openings of the components.
  • the sleeve head bears against the surface of one component and the expanded sleeve section bears against the opposite surface of the other component.
  • At least one of the locking sections is configured as a thread. This allows a simple and nondestructive demounting of the device and, thus of the components, by unscrewing of the fastening head from the fastening bushing by means of a suitable demounting tool, which can likewise be part of the inventive device. Damage to the fastening device or to the components can here be reliably prevented .
  • the fastening pin and/or the fastening bushing can respectively be configured in one piece.
  • the fastening pin and/or the fastening bushing can consist of a plastic, produced, for example, by plastic injection molding. It is also conceivable, however, for the fastening pin and/or the fastening bushing to consist of a metal material.
  • the sleeve section can comprise an inner thread and/or the pin head can comprise an outer thread.
  • both the sleeve section and the pin head comprise a thread, i.e. a thread and a mating thread are provided, a particularly secure hold of the fastening device and a simple demounting by unscrewing is enabled.
  • the engaging means can be provided on the pin head and/or on the pin section. The engaging means can be arranged on the, in the mounted state of the device, outer side and/or on the, in the mounted state, inner side of the device. This can be chosen in dependence on the accessibility in the mounted state.
  • the engaging means can comprise, for example, an internal or external hexagon (Torx) or similar, which is configured, for example, on the pin section and can be actuated by means of a corresponding demounting tool.
  • Torx internal or external hexagon
  • an internal engagement for a demounting tool up to the pin head can be guided through the pin section.
  • the engaging means can also be configured at that end of the pin head which is facing away from the pin section.
  • the engaging means can be constituted, for example, by engaging grooves, in which a suitable demounting tool engages. The engaging grooves can run, for example, in the axial direction of the pin head, so that they can transmit a torgue exerted by a demounting tool .
  • the fastening pin can comprise a predetermined breaking point at which the fastening pin can be broken off the pin head in the fastened state of the device.
  • that part of the fastening pin which protrudes from the components after the fastening of the same can in this embodiment be sheared off in a particularly simple manner, so that the structural size of the ready- mounted device is further diminished.
  • the shearing off or breaking off of the pin section can be realized with the tool which is used for mounting of the device.
  • a tool can be, for example, a rivet gun or riveting tongs .
  • the stop means can comprise means for providing a force closure and/or a form closure between the pin head and the sleeve section.
  • the stop means comprise at least one locking fixture configured on the pin head and at least one locking projection configured on the sleeve head, wherein the at least one locking projection engages with the at least one locking fixture upon insertion of the pin head into the sleeve head and so forms the stop.
  • the stop means comprise at least one locking fixture configured on the sleeve head and at least one locking projection provided on the pin head, wherein the at least one locking projection engages with the at least one locking fixture upon insertion of the pin head into the sleeve head and so forms the stop.
  • the at least one locking fixture can be at least one locking groove running in the peripheral direction of the pin head or of the sleeve head.
  • At least two or more than two locking projections can be provided.
  • the fastening pin head As the fastening pin head is inserted into the fastening sleeve, they engage with the at least one locking fixture. A force closure between the fastening pin and the fastening bushing is thereby effected.
  • the pin head when inserted further into the fastening bushing, hence takes the sleeve section along with it and, in so doing, deforms the latter.
  • This force closure advantageously also leads to at least partial renewed unfolding of the fastening bushing during demounting.
  • the fastening device can thereby be removed again from the components in one piece and without damage, for example for servicing or repair.
  • figure 2 shows the fastening bushing from figure 1 in a second perspective view
  • figure 3 shows the fastening bushing from figure 1 in a vertical sectional view
  • figure 4 shows a fastening pin of an inventive device in a first perspective view
  • figure 5 shows the fastening pin from figure 4 in a second perspective view
  • figure 6 shows an inventive device in a premounted state in a side view
  • figure 7 shows the device from figure 6 in a top view
  • figure 8 shows the device from figure 6 in a first perspective view
  • figure 9 shows the device from figure 6 in a second perspective view
  • figure 10 shows the device from figure 6 in a ready- mounted state in a side view
  • figure 11 shows the device from figure 10 in a top view
  • figure 12 shows the device from figure 10 in a sectional view
  • figure 13 shows a fastening pin of an inventive device according to a second illustrative embodiment in a perspective view
  • figure 14 shows an inventive device according to the second illustrative embodiment in a premounted state in a side view
  • figure 15 shows the device from figure 14 in a sectional view
  • figure 16 shows the device from figure 14 in the ready-mounted state in a side view
  • figure 17 shows the device from figure 16 m a top view
  • figure 18 shows the device from figure 16 in a side view .
  • a fastening bushing of an inventive device has a, in the shown example, cylindrical sleeve section 12 and a, in the shown example, hexagonally configured sleeve head 14.
  • the sleeve section 12 delimits a cylindrical sleeve opening.
  • the cylindrical sleeve wall is provided with four axial recesses 16 arranged evenly distributed over the periphery of the wall.
  • the sleeve section 12 has in the shown example four locking projections 18, which, radiating from the cylindrical sleeve wall, project radially inward.
  • the locking projections 18 are elastic.
  • the sleeve section 12 in the region of its end facing toward the sleeve head 14, is provided with an inner thread 20.
  • the sleeve head 14 additionally has a circular through opening 22 aligned with the cylindrical opening formed by the sleeve section 12.
  • the fastening pin has a cylindrical pin section 24, one end of which is adjoined by a likewise substantially cylindrical pin head 26.
  • the pin head 26 has an outer thread 28.
  • the pin head 26 comprises as engaging means two axial grooves 30, which are configured on opposite sides and in which a demounting tool can engage, as will be explained in greater detail further below.
  • the pin section 26 has in the region of its free end a locking groove 32 running round the periphery of the pin section 26.
  • the locking groove 32 is adjoined by a head section 34.
  • the head section 34 is provided with a plurality of recesses 36.
  • FIG. 6 to 9 an inventive device according to a first illustrative embodiment, comprising the fastening bushing according to figures 1 to 3 and the fastening pin according to figures 4 and 5, is shown. It can be seen that the fastening pin has been inserted with its pin section 24 firstly through the sleeve section 12 of the fastening bushing and then through the through opening of the sleeve head 14. In the premounted position shown in figures 6 to 9, the locking projections 18 of the sleeve section 12 have engaged with the peripheral groove 32 of the pin head 26. The groove 32 and the locking projections 18 thus form stop means, which in the state shown in figures 6 to 9 provide a force closure between the sleeve section 12 and the pin head 26 and thus form a stop.
  • the inventive device can be slid with the sleeve section 12 through the two, for this purpose, mutually aligned through openings of components (not shown) to be connected to each other, until the sleeve head 14 bears with its bottom side facing toward the sleeve section 12 against the surface of one of the two components to be fastened.
  • the pin section 24 can then be pulled further through the sleeve section 12 and the through openings of the sleeve head 14 by means of a suitable tool, for example a rivet gun.
  • a suitable tool for example a rivet gun.
  • This finally mounted state is represented in figures 10 to 12. Due to the above-described force closure by the locking projections 18 and the locking groove 32, an expansion of the sleeve section 12 hereupon ensues, accompanied at the same time by a considerable reduction in length of the sleeve section 12. Furthermore, in the course of this final assembly, a locking between the outer thread 28 of the pin head and the inner thread 20 of the sleeve section 12 materializes. In the state shown in figures 10 to 12, the device is firmly held. The components to be fastened together are here held in the free space 38 apparent in figures 10 and 12 securely between the sleeve head 14 and the sleeve section 12.
  • a predetermined breaking point 40 in the form of a diametric reduction is additionally provided.
  • the pin section 24, in the ready-mounted state shown in figures 10 to 12 can be sheared off from pin head 26.
  • the device can be demounted again in a nondestructive manner by means of a suitable demounting tool.
  • the demounting tool engages in the engaging grooves 30 of the pin head 26.
  • the pin head 26 can then be unscrewed from the inner thread 20 of the sleeve section 12.
  • the sleeve section 12 hereupon at least partially unfolds again, so that the inventive device can be removed from the components in a nondestructive manner and without damage thereto for servicing or repair, for example.
  • a second illustrative embodiment of an inventive fastening device is represented. This illustrative embodiment differs from the illustrative embodiment shown in figures 1 to 12 with respect to the fastening pin.
  • the fastening bushing is configured as described above in relation to figures 1 to 12, so that reference should be made to these figures.
  • the fastening pin from figures 13 to 18, like the fastening pin from figures 1 to 12, has a cylindrical pin section 24', which merges into a pin head 26' with an outer thread 28'.
  • the fastening pin from figures 13 to 18 has, in place of the axial grooves 30, a, in the shown example, hexagon socket 42', which begins at the free end of the pin section 24' and extends within the pin section 24' to into the pin head 26'. At its free end, the pin head 26' once again has a circumferential locking groove 32' and a thereto adjoining head section 34' with recesses 36'.
  • the function and configuration of the fastening pin according to figures 13 to 18, apart from the hexagon socket 42' corresponds to the above-described function and configuration according to figures 1 to 12, so that reference should be made hereto.
  • the device according to figures 13 to 18 is brought into the premounted position shown in figures 14 and 15 in the same manner as described above in relation to figures 1 to 12.
  • the device is brought into the end-mounted position shown in figures 16 to 18 likewise in the manner described above in relation to figures 1 to 12.
  • the hexagon socket 42' can be seen in the view of that side of the sleeve head 14 which is facing away from the sleeve section 12.
  • the pin section 24' once again has a predetermined breaking point 40', at which the pin section 24', in the end-mounted position shown in figures 16 to 18, can be sheared off.

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

Abstract

L'invention porte sur un dispositif pour fixer au moins un premier élément constitué d'un trou traversant à au moins un second élément constitué également d'un trou traversant, lequel dispositif comprend : - une douille de fixation munie d'une section manchon (12) et d'une tête de manchon (14), la section manchon comprenant au moins une section de verrouillage (20) et au moins deux cavités (16) dans sa paroi s'étendant dans la direction axiale, et la tête de manchon (14) comprenant un trou traversant (22) aligné sur la section manchon (12), - une broche de fixation munie d'une section (14) et d'une tête (26), la tête de broche comprenant au moins une section de verrouillage (28) et des moyens de butée (18, 32) étant disposés entre la broche de fixation et la douille de fixation, la section broche (24) étant conçue pour être introduite dans la section manchon (12) et dans le trou traversant (22) de la tête de manchon (14), au moins l'une des sections de verrouillage (20, 28) étant configurée comme un filetage et des moyens de mise en prise (30) sont prévus avec lesquels la tête de broche peut être dévissée de la section manchon pour le démontage.
PCT/US2011/066920 2010-12-23 2011-12-22 Dispositif de fixation WO2012088449A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201010055808 DE102010055808A1 (de) 2010-12-23 2010-12-23 Befestigungsvorrichtung
DE102010055808.7 2010-12-23

Publications (1)

Publication Number Publication Date
WO2012088449A1 true WO2012088449A1 (fr) 2012-06-28

Family

ID=45478599

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2011/066920 WO2012088449A1 (fr) 2010-12-23 2011-12-22 Dispositif de fixation

Country Status (2)

Country Link
DE (1) DE102010055808A1 (fr)
WO (1) WO2012088449A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011119819A1 (de) 2011-12-01 2013-06-06 Illinois Tool Works Inc. Befestigungsvorrichtung
DE102012019641A1 (de) * 2012-10-06 2014-04-10 Volkswagen Aktiengesellschaft Verbindungsanordnung zur lösbaren Verbindung von Bauteilen untereinander unter Vermittlung wenigstens eines Hohlniets sowie Hohlniet dazu

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3279304A (en) * 1965-07-07 1966-10-18 Nat Screw & Mfg Company High strength blind fastener
US4810141A (en) * 1987-06-19 1989-03-07 Rockwell International Corporation Blind fastener
US4969785A (en) * 1989-11-01 1990-11-13 Textron, Inc. Fastener mandrel and method
WO1995025469A1 (fr) * 1994-03-21 1995-09-28 The Anspach Effort, Inc. Attache destinee a fixer des objets aux os
DE4445454A1 (de) * 1994-12-20 1996-06-27 Vvg Befestigungstechnik Beteil Blindniet

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3279304A (en) * 1965-07-07 1966-10-18 Nat Screw & Mfg Company High strength blind fastener
US4810141A (en) * 1987-06-19 1989-03-07 Rockwell International Corporation Blind fastener
US4969785A (en) * 1989-11-01 1990-11-13 Textron, Inc. Fastener mandrel and method
WO1995025469A1 (fr) * 1994-03-21 1995-09-28 The Anspach Effort, Inc. Attache destinee a fixer des objets aux os
DE4445454A1 (de) * 1994-12-20 1996-06-27 Vvg Befestigungstechnik Beteil Blindniet

Also Published As

Publication number Publication date
DE102010055808A1 (de) 2012-06-28

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