GB2353834A - Slotted blind rivet - Google Patents

Slotted blind rivet Download PDF

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Publication number
GB2353834A
GB2353834A GB9920480A GB9920480A GB2353834A GB 2353834 A GB2353834 A GB 2353834A GB 9920480 A GB9920480 A GB 9920480A GB 9920480 A GB9920480 A GB 9920480A GB 2353834 A GB2353834 A GB 2353834A
Authority
GB
United Kingdom
Prior art keywords
rivet
stem
slotted
reinforced
blind rivet
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Withdrawn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
GB9920480A
Other versions
GB9920480D0 (en
Inventor
Robert Leslie Wallis
Michael Osborne
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.)
Newfrey LLC
Original Assignee
Newfrey LLC
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 Newfrey LLC filed Critical Newfrey LLC
Priority to GB9920480A priority Critical patent/GB2353834A/en
Publication of GB9920480D0 publication Critical patent/GB9920480D0/en
Publication of GB2353834A publication Critical patent/GB2353834A/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Withdrawn legal-status Critical Current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
    • F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
    • F16B5/06—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips
    • F16B5/0607—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips joining sheets or plates to each other
    • F16B5/0621—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips joining sheets or plates to each other in parallel relationship
    • F16B5/0642—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips joining sheets or plates to each other in parallel relationship the plates being arranged one on top of the other and in full close contact with each other
    • 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

Landscapes

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

Abstract

A slotted blind rivet 10 comprises a rivet body 2 and a mandrel 4, the rivet body comprising a flange 6 and a stem 8 with longitudinal slots 12. Between the flange 6 and the slots 12 the stem 8 has a strengthened portion 14. The strengthening may be provided by longitudinal ribs 16 or alternatively the portion 14 can have a greater wall thickness than the slotted portion or be work hardened.

Description

2353834 IMPROVED BLIND RIVET The present invention relates to an improved
blind rivet comprising a rivet body and a mandrel, of the type which is known as a slotted rivet and which sets by forming collapsing legs on the blind side of the workpiece.
Rivets of the type which form collapsing legs on the blind side of the workpiece are designed to provide a wide support on the blind side. These rivets have the disadvantage that where the workpiece is particularly thin and fflable, or where the hole sizes are larger than recommended, then leg collapse can be uneven and the tail end of the rivet may even pull back into the rivet below the level of the normal position for leg collapse. This pulling back of the tail end of the rivet may cause the legs to more away from the workpiece and create a "tulip" formation on the blind side.
It is an object of the present invention to provide a blind rivet in which the above disadvantages are reduced or substantially obviated. In particular, it is an object of the present invention to provide a blind rivet of the collapsing leg type which is suitable for controlled and reliable setting in thin and friable materials, or in workpieces in which the hole is larger than recommended for the rivet. It is a further object of the present invention to provide a blind rivet of the collapsing leg type which can be set so that the flange is remote from the workpiece, thus providing a location feature for subsequent workpiece assembly.
The present invention provides a slotted blind rivet comprising a rivet body and a mandrel, the rivet body comprising a flange and a stem, the stem being provided with one or more longitudinal slots, characterised in that the stem comprises a reinforced or strengthened portion, located between the flange and the portion of the stem in which the slot(s) are formed.
BR8654 2 The reinforced or strengthened portion may, for example, be reinforced or strengthened by reinforcing ribs, a portion of increased wall thickness and increased outside diameter, or by work-hardening or localised heat treatment. Where the reinforcement is provided by means of ribs, preferably three ribs are provided, equally spaced about the circumference 5 of the rivet stem portion.
Embodiments of a slotted blind rivet will now be described with reference to the accompanying drawings in which:
Figure I is a view of a first embodiment of an assembled rivet and mandrel; Figure 2 is a section on the line H-11f of the rivet of Figure 1; Figure 3 is a view of a second embodiment of a rivet body; Figure 4 is a view of a third embodiment of a rivet body (when set in an oversize hole); Figure 5 is a view of a conventional slotted rivet (when set); Figure 6 is a view of the rivet of Figure I (when set) and Figure 7 is a view of the rivet of Figure 4 (when set in an oversize hole).
As can be seen from Figures I and 2, a rivet assembly shown generally at 10 comprises a rivet body 2 and headed mandrel 4. The rivet body 2 comprises a flange 6 and a stem S. The stem 8 is provided with a plurality of longitudinal slots 12 and comprises a portion 14, located between the flange 6 and the slots 12 which is reinforced by ribs 16.
As can be seen more clearly from Figure 2, in the embodiment shown, three longitudinal ribs 16 are provided, spaced equally around the outer surface of the reinforced portion 14.
In the second embodiment, shown in Figure 3, the reinforced or strengthened portion 14 comprises a portion having increased wall thickness relative to the portion of the stem 8 which is provided with the slots 12. The external diameter 18 of the portion 14 is increased relative to the external diameter of the slotted portion of the stem 8, but has the BR8654 3 same internal diameter (not shown) as that slotted portion, so that the wall thickness is greater.
In a third embodiment shown in Figure 4, the reinforced or strengthened portion 14 has 5 been strengthened by work hardening or localised heat treatment.
Figure 5 shows the setting of a conventional slotted rivet 510 with a slotted body 508 in an aperture 520 in a workpiece 522. As the rivet 5 10 has been set, the legs 524 formed as the slotted stem portion 508 pulls into the hole causing teh legs to be displaced upwardly, thus moving away from the surface of the workpiece 522 into what is termed a "tulip" formation.
Figure 6 shows the setting of the rivet 10 of Figures 1 and 2 in an aperture 20 of a workpiece 22. As the rivet is set in conventional manner, the legs 24 collapse against the surface of the workpiece 22 to provide a wide support on the blind side of the work piece.
Due to the reinforcing effect of the ribs 16, collapse is limited in length and the slotted stem portion collapses in a controlled and reliable manner.
The desired axial length and radial thickness of the ribs 16 and hence the strength of the portion 14 are determined according to the thickness of the workpiece to which the rivet is to be applied. If it is required that the rivet be set with the flange remote from the workpiece surface, then a rivet according to Figure 1 or Figure 3 is set in an accurately sized hole in the workpiece as shown in Figure 7 so that the rivet can only be inserted as far as the start of the reinforced or strengthened portion 14. The flange 6 is thus separated from the workpiece 22, and after setting, a secondary workpiece with, for example, a keyhole slot, can be located on, and slid beneath, the flange 6 to complete the assembly.
BR8654

Claims (6)

1. A slotted blind rivet (10) comprising a rivet body (2) and a mandrel (4), the rivet body (2) comprising a flange (6) and a stem (8), the stem (8) being provided with one or more longitudinal slots (12), characterised in that the stem (8) comprises a reinforced or strengthened portion (14), located between the flange (6) and the portion of the stem (8) in which the slot(s) (12) are formed.
2. A slotted blind rivet according to claim 1 characterised in that the reinforced or strengthened portion (14) is reinforced by one or more longitudinal ribs (16) on the outer surface of the stem (8).
3. A slotted blind rivet according to claim 2 characterised in that three longitudinal ribs (16) are provided, equispaced about the circumference of the stem (8).
4. A slotted blind rivet according to claim 1 characterised in that the reinforced or strengthened portion (14) comprises a portion (14) of increased wall thickness, having an outside diameter greater than that of the slotted portion of the stem (8), and the same internal diameter.
5. A slotted blind rivet according to claim 1 characterised in that the reinforced or strengthened portion (14) has been reinforced or strengthened by work-hardening.
6. A slotted blind rivet substantially as herein described and with reference to the accompanying drawings.
BR8654
GB9920480A 1999-09-01 1999-09-01 Slotted blind rivet Withdrawn GB2353834A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9920480A GB2353834A (en) 1999-09-01 1999-09-01 Slotted blind rivet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9920480A GB2353834A (en) 1999-09-01 1999-09-01 Slotted blind rivet

Publications (2)

Publication Number Publication Date
GB9920480D0 GB9920480D0 (en) 1999-11-03
GB2353834A true GB2353834A (en) 2001-03-07

Family

ID=10860031

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9920480A Withdrawn GB2353834A (en) 1999-09-01 1999-09-01 Slotted blind rivet

Country Status (1)

Country Link
GB (1) GB2353834A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2388063A (en) * 2002-04-23 2003-11-05 Emhart Llc Improved peel-type blind rivet
EP1924775A2 (en) * 2005-09-15 2008-05-28 Newfrey LLC Blind rivet and method
WO2012018952A1 (en) * 2010-08-06 2012-02-09 Allfast Fastening Systems, Inc. Temporary rivet
CN102933860A (en) * 2010-06-08 2013-02-13 纽弗雷公司 Blind rivet and fastening arrangement with a blind rivet
CN103003581A (en) * 2010-07-22 2013-03-27 阿弗德尔英国有限公司 Externally splined fastener
CN103534494A (en) * 2011-05-11 2014-01-22 盈锋知识产权私人有限公司 Splined fastener
WO2021213713A1 (en) * 2020-04-22 2021-10-28 Bayerische Motoren Werke Aktiengesellschaft Rivet element for setting a thread

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1570716A (en) * 1975-11-17 1980-07-09 Olympic Fastening Systems Blind spacer fastener
GB2060110A (en) * 1979-09-28 1981-04-29 Avdel Ltd Self-plugging Blind Rivet
GB2302150A (en) * 1994-03-21 1997-01-08 Anspach Effort Inc Fastener for attaching objects to bones

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1570716A (en) * 1975-11-17 1980-07-09 Olympic Fastening Systems Blind spacer fastener
GB2060110A (en) * 1979-09-28 1981-04-29 Avdel Ltd Self-plugging Blind Rivet
GB2302150A (en) * 1994-03-21 1997-01-08 Anspach Effort Inc Fastener for attaching objects to bones

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2388063B (en) * 2002-04-23 2005-11-23 Emhart Llc Improved blind rivet
GB2388063A (en) * 2002-04-23 2003-11-05 Emhart Llc Improved peel-type blind rivet
EP1924775A2 (en) * 2005-09-15 2008-05-28 Newfrey LLC Blind rivet and method
EP1924775A4 (en) * 2005-09-15 2009-12-16 Newfrey Llc Blind rivet and method
US7887273B2 (en) 2005-09-15 2011-02-15 Newfrey Llc Blind rivet and method
CN102933860B (en) * 2010-06-08 2016-02-24 纽弗雷公司 The fastening configuration of self-plugging rivet and use self-plugging rivet
CN102933860A (en) * 2010-06-08 2013-02-13 纽弗雷公司 Blind rivet and fastening arrangement with a blind rivet
US9334893B2 (en) 2010-06-08 2016-05-10 Newfrey Llc Blind rivet and fastening arrangement with a blind rivet
US9447807B2 (en) 2010-07-22 2016-09-20 Avdel Uk Limited Externally splined fastener
CN103003581B (en) * 2010-07-22 2015-11-25 阿弗德尔英国有限公司 There is the fastening piece of key bar outside
CN103003581A (en) * 2010-07-22 2013-03-27 阿弗德尔英国有限公司 Externally splined fastener
WO2012018952A1 (en) * 2010-08-06 2012-02-09 Allfast Fastening Systems, Inc. Temporary rivet
KR20140021635A (en) * 2011-05-11 2014-02-20 인파스텍 인텔렉츄얼 프로퍼티즈 피티이. 엘티디. Splined fastener
US9217454B2 (en) 2011-05-11 2015-12-22 Infastech Intellectual Properties Pte. Ltd. Splined fastener
CN103534494A (en) * 2011-05-11 2014-01-22 盈锋知识产权私人有限公司 Splined fastener
CN103534494B (en) * 2011-05-11 2016-08-17 盈锋知识产权私人有限公司 Securing member with spline and installation method thereof, and there is the clamp device of this securing member
TWI572785B (en) * 2011-05-11 2017-03-01 英費斯鐵克新加坡私人有限公司 Splined fastener
KR102023209B1 (en) * 2011-05-11 2019-09-19 인파스텍 인텔렉츄얼 프로퍼티즈 피티이. 엘티디. Splined fastener
WO2021213713A1 (en) * 2020-04-22 2021-10-28 Bayerische Motoren Werke Aktiengesellschaft Rivet element for setting a thread
US11873850B2 (en) 2020-04-22 2024-01-16 Bayerische Motoren Werke Aktiengesellschaft Rivet element for setting a thread

Also Published As

Publication number Publication date
GB9920480D0 (en) 1999-11-03

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