EP1945406A1 - Element de fixation qui assure la fixation dans un trou qui traverse une plaque avec acces par un seul cote, outil de pose et outil de demontage de l'element de fixation - Google Patents

Element de fixation qui assure la fixation dans un trou qui traverse une plaque avec acces par un seul cote, outil de pose et outil de demontage de l'element de fixation

Info

Publication number
EP1945406A1
EP1945406A1 EP06792431A EP06792431A EP1945406A1 EP 1945406 A1 EP1945406 A1 EP 1945406A1 EP 06792431 A EP06792431 A EP 06792431A EP 06792431 A EP06792431 A EP 06792431A EP 1945406 A1 EP1945406 A1 EP 1945406A1
Authority
EP
European Patent Office
Prior art keywords
sleeve
tool
expansion screw
screwdriver
fastening element
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Withdrawn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
EP06792431A
Other languages
German (de)
English (en)
Inventor
Raphael Dixa
Willi Haug
Marc Schäffer
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.)
Fischerwerke GmbH and Co KG
Original Assignee
Fischerwerke GmbH and Co KG
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 Fischerwerke GmbH and Co KG filed Critical Fischerwerke GmbH and Co KG
Publication of EP1945406A1 publication Critical patent/EP1945406A1/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Withdrawn legal-status Critical Current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
    • F16B37/00—Nuts or like thread-engaging members
    • F16B37/04—Devices for fastening nuts to surfaces, e.g. sheets, plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B13/00—Spanners; Wrenches
    • B25B13/48—Spanners; Wrenches for special purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B13/00—Spanners; Wrenches
    • B25B13/48—Spanners; Wrenches for special purposes
    • B25B13/488—Spanners; Wrenches for special purposes for connections where two parts must be turned in opposite directions by one tool
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B15/00—Screwdrivers
    • B25B15/001—Screwdrivers characterised by material or shape of the tool bit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/0007—Tools for fixing internally screw-threaded tubular fasteners
    • 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
    • F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
    • F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
    • F16B35/041—Specially-shaped shafts
    • F16B35/044—Specially-shaped ends
    • F16B35/045—Specially-shaped ends for retention or rotation by a tool

Definitions

  • Fastening element for fastening in a through hole in a plate with one-sided accessibility, setting tool and disassembly tool for the
  • the invention relates to a fastener for fastening in a through hole in a plate in one-sided accessibility with the features of the preamble of claim 1. Furthermore, the invention relates to a setting tool for fastening the fastener with the features of the preamble of claim 6 and a disassembly tool for releasing the Fastening element with the features of
  • blind rivets for connecting two sheets or other plates with one-sided accessibility known.
  • a blind rivet has a sleeve which is expandable with a spreading head. The spreading head is connected to a mandrel passing through the mandrel.
  • the blind rivet is inserted from an accessible side through congruent holes in the two sheets, so that it protrudes on an inaccessible side of the sheets.
  • the mandrel protrudes on the accessible side of the blind rivet, on it a tensile force is exerted, which pulls the spreading head against or in the inaccessible side of the sleeve.
  • the sleeve is compressed and / or widened on the inaccessible side of the sheets and engages behind the sheets in a form-fitting manner.
  • the mandrel breaks at a predetermined breaking point within the sleeve or the spreading head is pulled through the sleeve of the blind rivet.
  • the sleeve has an outwardly formed collar to rest on the accessible side of the sheets.
  • Blind rivets have the disadvantage that they can not be solved nondestructively. If they are destructively loosened, for example drilled out, a portion of the blind rivet on the inaccessible side falls out of the hole in the sheets. If there is a closed cavity, the fallen-out part of the blind rivet can not be removed, for example, it can cause undesirable rattling noises in bodywork.
  • the invention is therefore based on the object to propose a fastener for attachment in a through hole in a plate with one-sided accessibility, which can be solved non-destructive and completely remove on the accessible side.
  • Other objects of the invention are the proposal of a setting tool for fastening the fastener and a
  • Disassembly tool for releasing the fastener Disassembly tool for releasing the fastener.
  • the fastening element according to the invention has an expandable sleeve. It is
  • the sleeve can be slotted for widening or slit-free
  • the sleeve has an internal thread into which an expansion screw can be screwed in as the expansion body, which can be screwed into the sleeve by screwing it into the sleeve
  • the expansion screw has a tool holder for non-rotatable and positive locking
  • the tool holder is arranged at one end of the expansion screw, which can be screwed into the sleeve for expanding the sleeve.
  • the tool holder is thereby accessible through the sleeve for attaching the screwdriver.
  • Suitable tool holders are u.a. Hexagon socket, inner star (Torx) and internal serration.
  • the fastener is inserted from an accessible side of a plate in a through hole in the plate, so that the sleeve protrudes on an inaccessible side of the plate.
  • the expansion screw is screwed into the sleeve far enough to hold it.
  • the sleeve is inserted with the expansion screw ahead in the through hole.
  • the screwdriver is inserted from the accessible side of the plate through the sleeve of the fastening element in the tool holder of the expansion screw and the expansion screw is screwed with the screwdriver into the sleeve.
  • the expansion screw expands the sleeve on the inaccessible
  • the expansion of the sleeve can be done by axial compression of the sleeve and / or by radial expansion of the sleeve by the expansion screw.
  • the expansion screw is unscrewed so far out of the sleeve that the expansion screw the sleeve no longer keeps expanding.
  • the sleeve can be pulled out from the accessible side of the plate.
  • the expansion screw is not completely unscrewed from the sleeve, so that it remains connected to the sleeve and is pulled out together with it.
  • the fastener according to the invention is suitable both for connecting two or more plates as well as for creating an attachment point by another component is screwed to the sleeve of the fastener.
  • the expansion screw on a widening on one of the tool holder far side of its external thread.
  • the expansion which can also be referred to as a feeding head, for example, is conically similar to a countersunk head of a countersunk screw.
  • the tool holder for attaching a screwdriver on the head or the expansion far side, ie on or in a thread-side
  • the widening of the expansion screw has the purpose of widening the sleeve of the fastening element when screwing in the expansion screw.
  • the expansion or the spreading head is located on the inaccessible side of the plate, in the through hole of the fastener is attached.
  • the threads of the sleeve and the expansion screw left-hand thread.
  • the expansion screw is screwed from the inaccessible side into the sleeve and rotates the sleeve on the inaccessible side of the plate by a clockwise rotation of the inserted through the sleeve into the tool holder of the expansion screwdriver screwdriver.
  • Fastening of the fastener is done by a clockwise rotation as is common in screwing in screws in, for example, nuts and tightening screws and you are used to it.
  • An embodiment of the invention provides a collar of the sleeve for abutment against the accessible side of the plate.
  • the expanded sleeve engages thereby the plate / n with its expansion form-fitting on the inaccessible side and engages over the plate / s on the accessible side form-fitting with its collar.
  • the plate / n is clamped between the expansion and the collar and several plates are clamped against each other.
  • the sleeve of the fastener on a tool holder on the accessible side of the plate.
  • the tool holders can be two mutually parallel surfaces on the circumference of the sleeve, a polygonal, for example, four- or hexagon or, for example, one or more axial grooves.
  • the tool holder is preferably formed on the collar of the sleeve, if one is present. It serves to hold the sleeve against turning when screwing in the expansion screw.
  • the invention For attaching the fastener, i. for expanding its sleeve, the invention provides a setting tool with the features of claim 6.
  • Setting tool has a holding tool and a screwdriver.
  • the holding tool which may be tubular, is complementary to the tool holder of the sleeve of the fastener formed, it is attached to the tool holder of the sleeve and holds the sleeve by positive locking rotation against rotation with the expansion screw.
  • the screwdriver of the setting tool passes through the holding tool and is rotatable in the holding tool. It is attached by the sleeve of the fastener to the tool holder of the expansion screw. By rotating the drive screwdriver, the expansion screw is screwed into the sleeve and expands it.
  • the screwdriver may be a hand tool, it is preferably as a rod-shaped example
  • Screwdriver bit running which is rotatably by positive engagement in a bit holder of an electric or other motor wrench used.
  • the setting tool according to the invention enables a simple and rapid attachment of the fastening element according to the invention in a plate from one side.
  • the invention proposes a disassembly tool with the features of claim 7.
  • the disassembly tool has an example tubular support member for supporting on the plate in which the fastener is mounted on.
  • a screwdriver is rotatably mounted, for example, rotatably mounted, which is supported axially on the support member on the plate.
  • the screwdriver which is preferably designed as a bit as the setting tool, has a complementary to the internal thread of the sleeve external thread. It is attached by the sleeve of the fastener to the tool holder of the screwed into the sleeve expansion screw.
  • the expansion screw is unscrewed from the sleeve so far, that she no longer widened the sleeve.
  • Simultaneously with the unscrewing of the expansion screw of the screwdriver of the removal tool is screwed with its external thread into the internal thread of the sleeve.
  • the force exerted by the screwdriver on the sleeve tensile force is supported on the support member of the disassembly tool on the plate.
  • the expansion of the sleeve of the fastener is made so far when pulling out as it requires the withdrawal.
  • the disassembly tool according to the invention enables a simple and quick release of the fastening element according to the invention.
  • Figure 1 is an inventive fastener in an exploded view
  • Figure 2 shows a setting tool for the fastener of Figure 1 according to the
  • Figure 3 shows a disassembly tool for the fastener of Figure 1 according to the invention in a perspective sectional view.
  • the fastening element 1 according to the invention shown in FIG. 1 has a sleeve 2 and an expansion screw 3.
  • the sleeve 2 has a to a screw thread 4 of the expansion screw 3 complementary internal thread 5, so that the expansion screw 3 can be screwed into the sleeve 2.
  • Both threads 4, 5 are left-hand threads.
  • the sleeve 2 has a radially projecting collar 6, in the circumference of three longitudinal grooves 7 are mounted.
  • the longitudinal grooves 7 form a tool holder for the rotationally fixed and form-fitting attachment of a holding tool to be explained yet.
  • other tool holders such as a polygonal or multi-toothed collar or two mutually parallel surfaces are opposite each other on the circumference of the collar. 6 possible (not shown).
  • the sleeve has two slots 30 at its end 6 remote from the collar.
  • the expansion screw 3 has an expansion head 8, which is designed as a conical widening similar to a countersunk screw head.
  • Cone angle of Sp Dr Dr Dr Drlichkopfs 8 is sharper than a countersunk head and is for example 60 °.
  • the expansion screw 3 with its spreader 8 can be considered or referred to as a spreading body.
  • a diameter of the spreading head 8 is not larger than an outer diameter of the sleeve 2.
  • a tool holder 9 for rotationally fixed and positive attachment of a screwdriver.
  • the tool holder 9 of the expansion screw 3 is designed as Torx or inner star. Again, other tool holders, such as a hexagon socket, possible.
  • Tool holder 9 allows a rotary drive of the expansion screw 3 through the sleeve 2 therethrough.
  • the fastener 1 is provided for attachment in a through hole in a plate, not shown, for example, a sheet, with one-sided accessibility.
  • a plate not shown, for example, a sheet
  • two or more plates can be connected as with a blind rivet.
  • the fastening element 1 can be used as a fastening point.
  • it is fixed in one or more plates as described below, and the internal thread 5 of the sleeve 2 can be used for screwing on an object to be fastened (not shown).
  • the joining of two sheets will be described.
  • the attachment of the fastener 1 in one or more than two plates takes place in the same way.
  • the sheets to be joined are placed on each other and provided congruently with a hole whose inner diameter corresponds to an outer diameter of the sleeve 2.
  • the expansion screw 3 is or is screwed into the sleeve 2 at the beginning of the attachment, so that it is held in the sleeve 2.
  • the spreading head 8 is located on an opposite side to the collar 6.
  • the fastener 1 is of a accessible side out with the spreader 8 ahead inserted into the through hole of the two sheets until the collar 6 rests against one of the two sheets.
  • the spreader 8 occurs on the opposite side of the sheets, the sleeve 2 is also on the opposite non-accessible side of the sheets before.
  • connection of the two sheets, not shown, with the sleeve 2 of the fastening element 1 according to the invention is comparable to the connection with a blind rivet.
  • the setting tool 10 has a holding tool 11 with an axially through hole, in which a screwdriver 12 is rotatably and axially displaceably received.
  • Screwdriver 12 has a Torx or effetstem- "blade" complementary to the tool holder 9 of the expansion screw 3, it is rotatably by positive engagement on the tool seat 9 of the expander 3.
  • the screwdriver 12 is formed as a so-called Be the outer star 13 far away, from the holding tool 11 protruding end is formed as a hexagon 14 for insertion into a complementary bit holder, for example, a cordless screwdriver, not shown.
  • the holding tool 11 has a rubber bead 15 for holding by hand. On the side of the outer star 13, the holding tool 11 has a tubular extension
  • the tubular projection 16 fits on the collar 6 of the sleeve 2, the longitudinal ribs 17 fit into the grooves 7 of the
  • the tubular extension 16 of the holding tool 1 1 thereby forms a
  • Tool in the manner of a so-called pipe wrench it is axially mounted on the collar 6 of the sleeve 2, wherein its longitudinal ribs 17 engage with the grooves 7 of the collar 6.
  • the holding tool 11 can be rotationally fixed by positive engagement in this way attach to the collar 6 of the sleeve 2, the grooves 7 form the tool holder.
  • the sleeve 2 can thereby hold against rotation when screwing in the expansion screw 3.
  • the screwing in the expansion screw 3 is carried out as already described with the rotary tool 12, which passes through the holding tool 11 and rotatably through the sleeve 2 by positive engagement on the tool holder 9 of the expansion screw 3 can be attached.
  • the disassembly tool 18 has a tubular support element 19 with longitudinal ribs 26 on its inner circumference.
  • the tubular support member 19 fits like the tubular extension 16 of the holding tool 11 of the setting tool 10 on the collar 6 of the sleeve 2.
  • the longitudinal ribs 26 come into engagement with the grooves 7 of the collar 6 of the sleeve 2.
  • the sleeve 2 can be characterized with the Keep support element rotation proof.
  • a screwdriver 21 is rotatably and axially fixed.
  • the screwdriver 20 is again designed as a bit, it has a hexagon 22 for insertion into a bit holder, for example, an electric screwdriver, not shown on a the support member 19 far end.
  • the screwdriver 22 to a female thread 5 of the sleeve 2 of the fastener 1 complementary screw thread 23.
  • a "blade" of the screwdriver 22, which is located at a distal end of the hexagon 22 and which protrudes from the support element 19, is complementary to the tool holder 9 of the expansion screw 3 of the fastener 1.
  • the "blade” will also be referred to briefly as the outer star 24 below.
  • the disassembly tool 18 is attached to the fastener 1, that the outer star 24 passes through the sleeve 2 through a form fit with the tool holder 9 of the expansion screw 3 into engagement.
  • the screwdriver 22 is driven in rotation, wherein due to the left-hand thread 4,
  • the expansion screw 3 is unscrewed from the sleeve 2 by a left-hand rotation and at the same time the screwdriver 22 is screwed into the sleeve 2.
  • Fastening element 1 is the support member 19 of the disassembly tool 18 in Attachment to the sheet in which the fastener 1 is attached.
  • the support member 19 supports the screwdriver 22 axially on the sheet, so that by screwing the screwdriver 22 into the sleeve 2, the sleeve 2 is pulled out of the sheet. Since previously when screwing the screwdriver 22 into the sleeve 2, the expansion screw 3 has been turned out of the sleeve 2 so far that the expansion head 8 of the expansion screw 3 no longer spreads the sleeve 2, the sleeve 2 can be pulled out of the sheet. Your widening caused when fixing by the expansion head 8 widening is reversed.
  • the lengths of the outer star 24 and the external thread 23 of the screwdriver 22 and a length of the support member 19 of the disassembly tool 18 are matched to the fastener 1, that when loosening the fastener 1, the expansion screw 3 is not completely unscrewed from the sleeve 2 but in the internal thread 5 remains held. This prevents the expansion screw 3 from falling out of the sleeve 2 and falling down. The expansion screw 3 is pulled out of the sheet together with the sleeve 5, in which the fastener 1 was attached. Also for releasing the fastener 1 is sufficient one-sided accessibility.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Dowels (AREA)
  • Earth Drilling (AREA)
  • Insertion Pins And Rivets (AREA)
  • Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
  • Connection Of Plates (AREA)

Abstract

L'invention concerne un élément de fixation (1) qui assure la fixation dans un trou qui traverse une plaque avec accès par un seul côté. L'élément de fixation (1) présente une douille (2) et une vis d'expansion (3) qui peut être vissée dans la douille (2) pour l'évaser. Un logement d'outil (9) qui permet de placer un tournevis est prévu à une extrémité de la vis d'expansion (3) accessible par l'intermédiaire de la douille (2). Par ailleurs, l'invention concerne un outil de pose et un outil de démontage de l'élément de fixation (1).
EP06792431A 2005-10-26 2006-10-18 Element de fixation qui assure la fixation dans un trou qui traverse une plaque avec acces par un seul cote, outil de pose et outil de demontage de l'element de fixation Withdrawn EP1945406A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200510051243 DE102005051243A1 (de) 2005-10-26 2005-10-26 Befestigungselement zum Befestigen in einem Durchgangsloch in einer Platte bei einseitiger Zugänglichkeit, Setzwerkzeug und Demontagewerkzeug für das Befestigungselement
PCT/EP2006/010026 WO2007048531A1 (fr) 2005-10-26 2006-10-18 Element de fixation qui assure la fixation dans un trou qui traverse une plaque avec acces par un seul cote, outil de pose et outil de demontage de l'element de fixation

Publications (1)

Publication Number Publication Date
EP1945406A1 true EP1945406A1 (fr) 2008-07-23

Family

ID=37564390

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06792431A Withdrawn EP1945406A1 (fr) 2005-10-26 2006-10-18 Element de fixation qui assure la fixation dans un trou qui traverse une plaque avec acces par un seul cote, outil de pose et outil de demontage de l'element de fixation

Country Status (6)

Country Link
EP (1) EP1945406A1 (fr)
CN (1) CN101309779A (fr)
AR (1) AR056156A1 (fr)
DE (1) DE102005051243A1 (fr)
TW (1) TW200722640A (fr)
WO (1) WO2007048531A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10436236B2 (en) 2017-10-10 2019-10-08 Velcro BVBA Threaded fastening

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DE102007056637A1 (de) 2007-11-24 2009-05-28 GM Global Technology Operations, Inc., Detroit Kombinationsschraubernuss
DE102011106310B4 (de) * 2011-07-01 2013-01-31 Trw Automotive Electronics & Components Gmbh Befestigungsclip
TWI419766B (zh) * 2012-01-09 2013-12-21 Kabo Tool Co 多邊形扳手
CN103362922B (zh) * 2012-03-28 2015-05-06 中广核工程有限公司 耐腐蚀紧固件及其施工器具和安装方法
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CN203518846U (zh) * 2013-05-02 2014-04-02 惠州市壹吧翎飞镖有限公司 一种飞镖靶
CN103331719A (zh) * 2013-07-11 2013-10-02 烟台冰轮股份有限公司 双头螺柱快速上紧套筒
ES2907975T3 (es) * 2013-10-01 2022-04-27 Howmet Aerospace Inc Llave y cavidad asimétrica de sujetador
US10076813B2 (en) * 2016-02-29 2018-09-18 The Boeing Company Apparatuses for coupling threaded fasteners
CN105840611B (zh) * 2016-05-26 2017-10-27 鲁东大学 一种用于单面安装的高强度螺栓组件
CN109356919B (zh) * 2018-11-29 2023-12-29 海盐万德弗精密五金有限公司 一种易拧型牙条
TW202210243A (zh) * 2020-08-18 2022-03-16 日商益冉機械工具股份有限公司 切削用前端工具

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10436236B2 (en) 2017-10-10 2019-10-08 Velcro BVBA Threaded fastening

Also Published As

Publication number Publication date
AR056156A1 (es) 2007-09-19
TW200722640A (en) 2007-06-16
DE102005051243A1 (de) 2007-05-03
WO2007048531A1 (fr) 2007-05-03
CN101309779A (zh) 2008-11-19

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