GB2240603A - Blind rivet nut - Google Patents

Blind rivet nut Download PDF

Info

Publication number
GB2240603A
GB2240603A GB9101274A GB9101274A GB2240603A GB 2240603 A GB2240603 A GB 2240603A GB 9101274 A GB9101274 A GB 9101274A GB 9101274 A GB9101274 A GB 9101274A GB 2240603 A GB2240603 A GB 2240603A
Authority
GB
United Kingdom
Prior art keywords
blind rivet
rivet nut
threaded element
tensioning body
opening
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Withdrawn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
GB9101274A
Other versions
GB9101274D0 (en
Inventor
Klaus Kobusch
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.)
Boellhoff GmbH
Original Assignee
Boellhoff 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 Boellhoff GmbH filed Critical Boellhoff GmbH
Publication of GB9101274D0 publication Critical patent/GB9101274D0/en
Publication of GB2240603A publication Critical patent/GB2240603A/en
Withdrawn legal-status Critical Current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
    • F16B37/06—Devices for fastening nuts to surfaces, e.g. sheets, plates by means of welding or riveting
    • F16B37/062—Devices for fastening nuts to surfaces, e.g. sheets, plates by means of welding or riveting by means of riveting
    • F16B37/065—Devices for fastening nuts to surfaces, e.g. sheets, plates by means of welding or riveting by means of riveting by deforming the material of the nut
    • F16B37/067—Devices for fastening nuts to surfaces, e.g. sheets, plates by means of welding or riveting by means of riveting by deforming the material of the nut the material of the nut being deformed by a threaded member generating axial movement of the threaded part of the nut, e.g. blind rivet type
    • 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
    • F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
    • F16B13/04—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front
    • F16B13/06—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve
    • F16B13/061—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve of the buckling type
    • 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
    • F16B19/1072—Blind rivets fastened by a pull - mandrel or the like the pull-mandrel or the like comprising a thread and being rotated with respect to the rivet, thereby mechanically expanding and fastening the rivet
    • 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
    • F16B29/00—Screwed connection with deformation of nut or auxiliary member while fastening

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dowels (AREA)
  • Bolts, Nuts, And Washers (AREA)
  • Insertion Pins And Rivets (AREA)
  • Clamps And Clips (AREA)

Abstract

A blind rivet nut includes a resilient body 1 in which is secured a metallic threaded element 4 engageable by a bolt 11 to form a head 8, so as to secure a member 10 to a member 14, a distance sleeve 12 being provided in the resilient body 1 between the threaded element 4 and the opening to prevent excessive deformation of the resilient body 1. <IMAGE>

Description

BLIND RIVET NUT The present invention relates to a blind rivet nut including a tensioning body made of resilient material to be inserted in an opening for being connected thereto and a metallic threaded element secured in the tensioning body.
Flexible blind rivet nuts of the type above referred to are known in the art. While screwing a bolt into the threaded element the section of the rubber body located between the back face of the mounting bore and the threaded element is deformed and radially expanded to a bead which comes into contact with the back face of the mounting bore. In this way a mounting is obtained in which the members to be secured together are mechanically decoupled since the mounting provides for a dampening of oscillations due to the flexible material of the rubber body. Furthermore those blind rivet nuts can be repeatedly used.The operator must observe however that the bolt must be screwed in so far that the rubber body defines a safe and sealed set-head, whereas a screwing in too far shall be avoided since the rubber body can be excessivly deformed resulting in overstretching the material beyond its resilient limits. Moreover a well-defined tensioning torque cannot be measured as the mounting is defined to be rather soft due to the elasticity of the rubber body.
The object of the present invention is to provide an improved blind rivet nut which ensures that the safety of the mounting is increased when the bolt is screwed in and that the lifetime is extended.
According to the present invention, a blind rivet nut including a tensioning body made of resilient material to be inserted in an opening for being connected thereto and a metallic threaded element secured in the tensioning body, wherein the section of the tensioning body between the threaded element and the opening is deformed into a sethead, is characterized in that a distance sleeve is provided within the tensioning body between the threaded element and the opening.
According to the invention which provides a distance sleeve in the tensioning body adjacent the threaded element, the shaping of the flexible body into the set-head is limited by the distance sleeve which is urged by the threaded element into contact with the back surface of the member to be mounted. Accordingly the length of the distance sleeve is defined such that on one hand a well defined set-head for safe fixing is defined, while on the other hand an excessive squeezing of the flexible body is prevented. When the distance sleeve contacts the back face the torque applied to the bolt substantially increases. This is a safe indication that the mounting is finished.
An embodiment of the present invention is specified with reference to the Figures which show: Fig. 1 a section of a blind rivet nut with a bolt inserted before mounting and Fig. 2 a section of the blind rivet nut including the bolt in mounted condition.
The blind rivet nut shown comprises a cylindrical tensioning body 1 made of resilient material including a flange 2 integrally formed thereon. The end of the flexible body 1 opposite the flange 2 houses a metallic threaded element 4 which has an inner thread 3. The ele-ment 4 can be vulcanized in the flexible body 1 or may be positively held or secured to it in any other way. A section 7 of the flexible body lying between the flange 2 and the end 6 of the element 4 is deformed to a set-head 8 as shown in Fig. 2 when a mounting member 10 contacting the flange 2 is secured by screwing in a bolt 11.
Between the end 6 of the element 4 and the mounting member 10 a distance sleeve 12 is provided which can be axially displaced and which length is determined such that the threaded element 4 is supported on the mounting member 10 via the distance sleeve 12 when the bolt 11 is threaded in so far that the set-head 8 is shaped to obtain a safe mounting, but not excessively defoming the rubber body in the section 7.
For dismounting there are two possibilities: After releasing the bolt 11 the tensioning body 1 may spring back into its initial shape so that the mounting member 10 including the bolt 11 and the blind rivet nut may be removed. Accordingly the blind rivet nut acts as a quick setting locking means.
On the other hand the blind rivet nut may stick to the member 14 after the bolt 11 is released and pulled out so that the member 10 such as a cover may be removed.
The length of the distance sleeve 12 depends on the thickness of the member 10 and of the member 14 with respect to the length of the section 7 to be deformed and is selected such that the flexible material is not overloaded when the rubber body is tensioned.
The outer diameter of the distance sleeve 12 preferrably has a slightly larger diameter than the inner diameter of the section 7 to secure the sleeve by friction against falling out, whereas in mounting the sleeve shall easily displace to act as a counter support between the member 10 and the threaded element 4.
In a further embodiment not shown the end of the blind rivet not opposite the side of inserting the bolt may be closed to provide protection against atmospheric contamination. As an alternative the threaded element 4 is provided with a threaded blind hole with the bottom of the element closed.

Claims (6)

1. A blind rivet nut including a tensioning body made of resilient material to be inserted in an opening for being connected thereto and a metallic threaded element secured in the tensioning body wherein the section of the tensioning body between the threaded element and the opening is deformed into a set-head, characterized in that a distance sleeve (12) is provided in the tensioning body (1) between the threaded element (4) and the opening.
2. The blind rivet nut of claim 1, wherein the distance sleeve (12) is axially displaceable in the tensioning body (1) between the threaded element (4) and the insert opening of the tensioning body.
3. The blind rivet nut of claim 1 or 2 for securing a mounting member, wherein the threaded element (4) is supported on the mounting member (10) via the distance sleeve (12) in the mounted condition.
4. Blind rivet nut of claim 1, wherein the tensioning body (1) is provided with a closed bottom.
5. Blind rivet nut of claim 1, wherein the threaded element (4) is provided with a closed bottom.
6. A blind rivet nut sutantially as hereinbefore described with reference to the accompanying drawings.
GB9101274A 1990-01-31 1991-01-21 Blind rivet nut Withdrawn GB2240603A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE9001069U DE9001069U1 (en) 1990-01-31 1990-01-31 Blind rivet nut

Publications (2)

Publication Number Publication Date
GB9101274D0 GB9101274D0 (en) 1991-03-06
GB2240603A true GB2240603A (en) 1991-08-07

Family

ID=6850531

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9101274A Withdrawn GB2240603A (en) 1990-01-31 1991-01-21 Blind rivet nut

Country Status (4)

Country Link
DE (1) DE9001069U1 (en)
FR (1) FR2657661A1 (en)
GB (1) GB2240603A (en)
SE (1) SE9100249L (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001046598A1 (en) * 1999-12-20 2001-06-28 Saint-Gobain Isover An attachment system which are fitting sleeve for the spaced arrangement of objects
US7226263B2 (en) * 2003-08-27 2007-06-05 Bollhoff Verbindungstechnik Gmbh Device for connecting component parts, comprising a blind rivet fastener
ES2323118A1 (en) * 2008-01-04 2009-07-06 Juan Andres Elduayen Madariaga Universal elastic rivet
ITTO20111097A1 (en) * 2011-11-29 2013-05-30 Sidel Spa Con Socio Unico MACHINE PROTECTION DEVICE, IN PARTICULAR FOR A CONTAINER TREATMENT MACHINE
CN103573778A (en) * 2012-07-25 2014-02-12 广州汽车集团股份有限公司 Novel fastener
KR20190020803A (en) * 2016-06-30 2019-03-04 뵐호프 베르빈둥스테크니크 게엠베하 Fastener with damping function
WO2021034690A1 (en) * 2019-08-16 2021-02-25 Magna Exteriors Inc. Rivet nut with compression limiter shoulder
US20210246930A1 (en) * 2018-06-12 2021-08-12 Sherex Fastening Solutions Llc Rivet-like fastener and compression seal assembly
US11698093B2 (en) 2018-01-10 2023-07-11 Böllhoff Verbindungstechnik GmbH Blind rivet

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19836107A1 (en) * 1998-08-10 2000-02-17 Boellhoff Gmbh Clamping bond between two vehicle components has sleeve in opening of one part to take clamping support which forms ring bead when bolt is tight
DE202005005536U1 (en) 2005-04-07 2005-06-09 Böllhoff Verbindungstechnik GmbH Rivet
CN1991122A (en) * 2005-12-14 2007-07-04 德韧环球技术有限公司 Door hardware module
CN103671450A (en) * 2013-12-04 2014-03-26 同济大学 Extrudable unidirectional fastening bolt
CN106763029B (en) * 2015-11-23 2018-11-16 英业达科技有限公司 Riveted swivel nut and the method for utilizing its electronic device that locks
DE102018103138A1 (en) 2018-02-13 2019-08-14 Bombardier Transportation Gmbh Rivet thread element and component arrangement with rivet thread element
DE102018108633A1 (en) 2018-04-11 2019-10-17 Böllhoff Verbindungstechnik GmbH Outer sleeve of a connecting element without female thread with damping function, a connection element with outer sleeve and corresponding connection and manufacturing methods
CN108916189A (en) * 2018-09-28 2018-11-30 无锡安欣达科技有限公司 Detachable blind rivet

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB685643A (en) * 1950-05-11 1953-01-07 Robert Turk Improvements in and relating to wall plugs, fixing bolts and the like
GB911006A (en) * 1959-06-19 1962-11-21 Goodrich Co B F Improvements relating to the fastening together of parts
GB1096636A (en) * 1965-03-29 1967-12-29 Frederick William Rohe Improvements in screw fasteners
GB1289276A (en) * 1969-05-30 1972-09-13

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3021927A (en) * 1959-04-06 1962-02-20 Jr John R Mckee Lap-lox fastener
DE1750828C3 (en) * 1968-06-08 1974-04-04 Knapsack Ag, 5033 Huerth-Knapsack Retaining bolt
US3675881A (en) * 1970-11-04 1972-07-11 Huntington Rubber Mills Bushing for vibration-isolating mounting
JPH071671B2 (en) * 1986-09-19 1995-01-11 ソニー株式会社 Sealing device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB685643A (en) * 1950-05-11 1953-01-07 Robert Turk Improvements in and relating to wall plugs, fixing bolts and the like
GB911006A (en) * 1959-06-19 1962-11-21 Goodrich Co B F Improvements relating to the fastening together of parts
GB1096636A (en) * 1965-03-29 1967-12-29 Frederick William Rohe Improvements in screw fasteners
GB1289276A (en) * 1969-05-30 1972-09-13

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ299437B6 (en) * 1999-12-20 2008-07-23 Saint-Gobain Isover Attachment device and fitting sleeve for arranging objects at mutual distance from each other
WO2001046598A1 (en) * 1999-12-20 2001-06-28 Saint-Gobain Isover An attachment system which are fitting sleeve for the spaced arrangement of objects
US7226263B2 (en) * 2003-08-27 2007-06-05 Bollhoff Verbindungstechnik Gmbh Device for connecting component parts, comprising a blind rivet fastener
US8459917B2 (en) 2008-01-04 2013-06-11 Eurar 2020 S.L. Fastener and methods thereof
ES2323118A1 (en) * 2008-01-04 2009-07-06 Juan Andres Elduayen Madariaga Universal elastic rivet
WO2009087245A1 (en) * 2008-01-04 2009-07-16 Elduayen Madariaga Juan Andres Universal elastic rivet
CN101960155A (en) * 2008-01-04 2011-01-26 胡安·安德烈斯·埃尔杜瓦延·纳马达里亚加 Universal elastic rivet
EP2599743A3 (en) * 2011-11-29 2013-08-21 Sidel S.p.a. Con Socio Unico Machine protection device, in particular for a container handling machine
ITTO20111097A1 (en) * 2011-11-29 2013-05-30 Sidel Spa Con Socio Unico MACHINE PROTECTION DEVICE, IN PARTICULAR FOR A CONTAINER TREATMENT MACHINE
CN103573778A (en) * 2012-07-25 2014-02-12 广州汽车集团股份有限公司 Novel fastener
KR20190020803A (en) * 2016-06-30 2019-03-04 뵐호프 베르빈둥스테크니크 게엠베하 Fastener with damping function
CN109923319A (en) * 2016-06-30 2019-06-21 伯尔霍夫连接技术有限公司 Fastener with damping function
JP2019526752A (en) * 2016-06-30 2019-09-19 ボルホフ・フェルビンダンクシュテヒニーク・ゲゼルシャフト・ミット・ベシュレンクテン・ハフツング Fastener with damping function
KR102300276B1 (en) 2016-06-30 2021-09-08 뵐호프 베르빈둥스테크니크 게엠베하 Fastener with damping function
US11248645B2 (en) 2016-06-30 2022-02-15 Böllhoff Verbindungstechnik GmbH Fastener having a damping function
US11698093B2 (en) 2018-01-10 2023-07-11 Böllhoff Verbindungstechnik GmbH Blind rivet
US20210246930A1 (en) * 2018-06-12 2021-08-12 Sherex Fastening Solutions Llc Rivet-like fastener and compression seal assembly
WO2021034690A1 (en) * 2019-08-16 2021-02-25 Magna Exteriors Inc. Rivet nut with compression limiter shoulder

Also Published As

Publication number Publication date
DE9001069U1 (en) 1990-04-05
GB9101274D0 (en) 1991-03-06
SE9100249L (en) 1991-08-01
FR2657661A1 (en) 1991-08-02
SE9100249D0 (en) 1991-01-28

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)