GB2447413A - Fastener Installation Tool - Google Patents

Fastener Installation Tool Download PDF

Info

Publication number
GB2447413A
GB2447413A GB0705144A GB0705144A GB2447413A GB 2447413 A GB2447413 A GB 2447413A GB 0705144 A GB0705144 A GB 0705144A GB 0705144 A GB0705144 A GB 0705144A GB 2447413 A GB2447413 A GB 2447413A
Authority
GB
United Kingdom
Prior art keywords
inlet port
head
fastener
installation tool
tool
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.)
Granted
Application number
GB0705144A
Other versions
GB2447413B (en
GB0705144D0 (en
Inventor
Angraj Kumar Seewraj
Peter Michael Beecherl
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.)
Avdel UK Ltd
Original Assignee
Avdel UK Ltd
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 Avdel UK Ltd filed Critical Avdel UK Ltd
Priority to GB0705144A priority Critical patent/GB2447413B/en
Publication of GB0705144D0 publication Critical patent/GB0705144D0/en
Priority to DE602008001610T priority patent/DE602008001610D1/en
Priority to RU2008151418/02A priority patent/RU2008151418A/en
Priority to MX2008016288A priority patent/MX2008016288A/en
Priority to KR1020097001446A priority patent/KR20090033452A/en
Priority to EP08701949A priority patent/EP2125268B1/en
Priority to JP2009553195A priority patent/JP2010521307A/en
Priority to AT08701949T priority patent/ATE471778T1/en
Priority to PCT/GB2008/000276 priority patent/WO2008113967A1/en
Priority to AU2008228125A priority patent/AU2008228125A1/en
Priority to CN2008800024367A priority patent/CN101588879B/en
Priority to ES08701949T priority patent/ES2344540T3/en
Priority to MYPI20085349A priority patent/MY147819A/en
Priority to PL08701949T priority patent/PL2125268T3/en
Priority to US12/305,423 priority patent/US20090205184A1/en
Priority to CA002656798A priority patent/CA2656798A1/en
Priority to BRPI0804473-2A priority patent/BRPI0804473A2/en
Priority to TW097103493A priority patent/TWI351996B/en
Publication of GB2447413A publication Critical patent/GB2447413A/en
Application granted granted Critical
Publication of GB2447413B publication Critical patent/GB2447413B/en
Priority to US13/737,993 priority patent/US9370820B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00—Riveting
    • B21J15/10—Riveting machines
    • B21J15/16—Drives for riveting machines; Transmission means therefor
    • B21J15/22—Drives for riveting machines; Transmission means therefor operated by both hydraulic or liquid pressure and gas pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00—Riveting
    • B21J15/02—Riveting procedures
    • B21J15/04—Riveting hollow rivets mechanically
    • B21J15/043—Riveting hollow rivets mechanically by pulling a mandrel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00—Riveting
    • B21J15/10—Riveting machines
    • B21J15/105—Portable riveters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00—Riveting
    • B21J15/10—Riveting machines
    • B21J15/30—Particular elements, e.g. supports; Suspension equipment specially adapted for portable riveters
    • B21J15/32—Devices for inserting or holding rivets in position with or without feeding arrangements
    • B21J15/34—Devices for inserting or holding rivets in position with or without feeding arrangements for installing multiple-type tubular rivets
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53709—Overedge assembling means
    • Y10T29/5377—Riveter
    • Y10T29/53774—Single header

Abstract

A hydro-pneumatically operated fastener installation tool for blind installation of break-stem fasteners, including a head having hydraulically driven gripping and pulling means for gripping and pulling the fastener stem, the gripping and pulling means being driven by a hydraulic cylinder which is supplied with fluid by an inlet port, wherein the inlet port 6 has a non-circular cross section, such as an oval, irregular oval, or elongated slot cross section, thereby reducing stress caused in the head on installation of a fastener.

Description

Fastener installation tool This invention relates to fastener
installation tools, and in particular to installation tools for installing breakstem fasteners, wherein a part of the fastener is broken off during installation.
Fastener installation tools for breakstem fasteners, such as a blind rivet or bolt, install the fastener by applying a relative pulling action to the stem of the fastener, until the stem is caused to break at a weakened or breakneck point, leaving part of the stem plugging the body of the fastener. The tool may incorporate a pneumatic or hydraulic intensifier, whereby the pulling stroke of the head is :. actuated when hydraulic fluid enters an inlet port provided in the forging (or casting) *::* of the tool head. Such tools are well known, for example those available under the trade mark Genesis. * * * * * *
: * The inlet port extends into the tool head from a bore formed in the forging. ***.
* Currently known tools have inlet ports which are circular in cross-section.
During the broaching of a fastener by the installation tool, the pressure within the head of the tool reaches a peak. This pressure peak consequently causes stresses in the head forging, and particularly around the hydraulic inlet port.
The operational life of the head is consequentially limited, as it will eventually fail by cracking around the hydraulic inlet port. The tool is therefore rendered unusable until a replacement head has been fitted.
The value of the pressure peak within the head on broaching increases with the broach load which must be applied to install the fastener, i.e. the force which must be applied to cause the fastener stem to fracture at the breakneck point.
It is an aim of the present invention to overcome or at least mitigate the above problems.
Accordingly, the present invention provides, in one aspect, a hydro-pneumatically operated fastener installation tool, including a head having hydraulically driven gripping means for gripping and pulling the stem of a fastener, thereby to install the fastener, and a hydraulic inlet port provided in the head for supplying hydraulic fluid to a cylinder to drive the gripping and pulling means, wherein the cross-sectional shape of the hydraulic inlet port is non-circular, such that a cross section of the inlet port has a longitudinal axis and lateral axis, wherein the longitudinal axis runs widthways across the tool head..
S
I
An advantage of the present invention is that stress around the hydraulic inlet port in the tool head caused on fastener broaching is minimised.
Consequently, potential deterioration of the tool head is minimised and the operating life of the head lengthened in comparison to currently known tool heads.
A further advantage is that the tool head can be compatible with known installation tools such that it is interchangeable with currently known tool heads.
Preferably the hydraulic inlet port is oval in cross-section. The inlet port may also be formed of an irregular oval, or an elongated slot, which could be fully radiused at each end.
The central axis of the inlet port may be perpendicular to the central axis of the head cylinder.
An embodiment of the present invention will now be described by way of example and with reference to the accompanying drawings in which: Figure 1 is a side elevation of an installation tool in accordance with the present invention; * S * -e5 S... *5*5
Figure 2 is an elevation of the underside of the head of the installation tool ofFigurel; S..
S
Figure 3 is a longitudinal cross-section of the head of the installation tool of S. S S. * Figure 1.
Figure 4 is an axial cross-section of the head of the installation tool of Figure 1.
Figures 5 and 6 are comparison tables of maximum stresses encountered in currently known tool heads and embodiments of tool heads according to the invention, at internal tool head pressures of 37.92 MPa and 47.57 MPa respectively.
Referring to Figures 1 and 2, the present invention provides a fastener installation tool 2 having a tool head 4. An inlet port 6 is provided in the tool head 4 to allow hydraulic fluid to enter a head cylinder 8 provided in the head 4.
As illustrated in Figure 2, the inlet port 6 comprises an elongated slot 10 with a full radii at each end 12. The longitudinal axis of a cross-section of the slot 10, i.e. the axis extending between the ends 12, run widthways across the tool head 4, i.e. in the direction of arrow A on Figure 2, and the lateral axis of the cross-section runs lengthways across the tool. The inlet port 6 extends from the inner surface 16 of a bore 14 (which accepts an intensifier tube 18 (Figure 3) when the head is attached to the tool), to the head cylinder 8. As illustrated in Figure 4, the central :. axis 20 of the inlet port 6 is normal to the inner surface 16, and is therefore angled relative to the central axis 22 of the head cylinder. S. * S *
* 15 Referring to the tables of Figures 5 and 6, the maximum stress occurring in ** * * a metal tool head of a tool according to the present invention is lower than that which occurs in the prior art, wherein the inlet port has a circular cross-section.
In an alternative embodiment, the inlet port 6 may not be normal to the inner surface 16 of the bore 14. For example, the inlet port 6 could be arranged to be perpendicular to the axis of the head cylinder 8. Therefore the longitudinal axis of a cross-section of the inlet port 6 would be perpendicular to the axis of the head cylinder 8. This embodiment represents the second entry on the tables of Figures 5 and 6.
The effective cross-sectional area of the inlet port 6 of the present invention may be the equal to that of the circular port provided in currently known tool heads. * S * S.. *. * S *SS. S. * S S * S **5 S *S * * S S... * . * * S S.

Claims (8)

  1. Claims 1. A hydro-pneumatically operated fastener installation tool,
    including a head having hydraulically driven gripping and pulling means for gripping and pulling the stem of a fastener, thereby to install the fastener, and a hydraulic inlet port provided in the head for supplying hydraulic fluid to a cylinder to drive the gripping and pulling means, wherein the cross-sectional shape of the hydraulic inlet port is non-circular, such that a cross section of the inlet port has a longitudinal axis and lateral axis, wherein the longitudinal axis runs widthways across the tool head.
  2. 2. A fastener installation tool as claimed in claim 1, wherein the cross- : ... sectional shape of the inlet port is oval. * I ***e
  3. 3. A fastener installation tool as claimed in claim 1, wherein the cross- * sectional shape of the inlet port is an irregular oval. * S. * * . *15.
  4. 4. A fastener installation tool as claimed in claim 1, wherein the cross-sectional shape of the inlet port is a longitudinal slot.
  5. 5. A fastener installation tool as claimed in claim 4 wherein at least one end of the longitudinal slot is fully radiused.
  6. 6. A fastener installation tool as claimed in any of the preceding claims wherein a central axis of the inlet port is perpendicular to a central axis of the head cylinder.
  7. 7. A fastener installation tool substantially as hereinbefore described and with reference to the accompanying figures. * * * *.* S... * I *.
  8. S. I* *S * I * * .
    S S..
    S * S. * S S S*S* S. * S * *.
GB0705144A 2007-03-16 2007-03-16 Fastener installation tool Active GB2447413B (en)

Priority Applications (19)

Application Number Priority Date Filing Date Title
GB0705144A GB2447413B (en) 2007-03-16 2007-03-16 Fastener installation tool
CN2008800024367A CN101588879B (en) 2007-03-16 2008-01-28 Fastener installation tool
MYPI20085349A MY147819A (en) 2007-03-16 2008-01-28 Fastener installation tool
MX2008016288A MX2008016288A (en) 2007-03-16 2008-01-28 Gb 0705144.4 20070316.
KR1020097001446A KR20090033452A (en) 2007-03-16 2008-01-28 Fastener installation tool
EP08701949A EP2125268B1 (en) 2007-03-16 2008-01-28 Fastener installation tool
JP2009553195A JP2010521307A (en) 2007-03-16 2008-01-28 Fastener mounting tool
AT08701949T ATE471778T1 (en) 2007-03-16 2008-01-28 FASTENING INSTALLATION TOOL
PCT/GB2008/000276 WO2008113967A1 (en) 2007-03-16 2008-01-28 Fastener installation tool
AU2008228125A AU2008228125A1 (en) 2007-03-16 2008-01-28 Fastener installation tool
DE602008001610T DE602008001610D1 (en) 2007-03-16 2008-01-28 MOUNT INSTALLATION TOOL
ES08701949T ES2344540T3 (en) 2007-03-16 2008-01-28 FIXERS INSTALLATION TOOL.
RU2008151418/02A RU2008151418A (en) 2007-03-16 2008-01-28 FASTENER INSTALLATION TOOL
PL08701949T PL2125268T3 (en) 2007-03-16 2008-01-28 Fastener installation tool
US12/305,423 US20090205184A1 (en) 2007-03-16 2008-01-28 Fastener installation tool
CA002656798A CA2656798A1 (en) 2007-03-16 2008-01-28 Fastener installation tool
BRPI0804473-2A BRPI0804473A2 (en) 2007-03-16 2008-01-28 fastener installation tool
TW097103493A TWI351996B (en) 2007-03-16 2008-01-30 Fastener installation tool
US13/737,993 US9370820B2 (en) 2007-03-16 2013-01-10 Fastener installation tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0705144A GB2447413B (en) 2007-03-16 2007-03-16 Fastener installation tool

Publications (3)

Publication Number Publication Date
GB0705144D0 GB0705144D0 (en) 2007-04-25
GB2447413A true GB2447413A (en) 2008-09-17
GB2447413B GB2447413B (en) 2009-03-18

Family

ID=38008599

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0705144A Active GB2447413B (en) 2007-03-16 2007-03-16 Fastener installation tool

Country Status (18)

Country Link
US (1) US20090205184A1 (en)
EP (1) EP2125268B1 (en)
JP (1) JP2010521307A (en)
KR (1) KR20090033452A (en)
CN (1) CN101588879B (en)
AT (1) ATE471778T1 (en)
AU (1) AU2008228125A1 (en)
BR (1) BRPI0804473A2 (en)
CA (1) CA2656798A1 (en)
DE (1) DE602008001610D1 (en)
ES (1) ES2344540T3 (en)
GB (1) GB2447413B (en)
MX (1) MX2008016288A (en)
MY (1) MY147819A (en)
PL (1) PL2125268T3 (en)
RU (1) RU2008151418A (en)
TW (1) TWI351996B (en)
WO (1) WO2008113967A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11654475B2 (en) 2020-06-03 2023-05-23 Milwaukee Electric Tool Corporation Rivet setting tool

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2192235A (en) * 1986-05-23 1988-01-06 Avdel Ltd Replenishing hydraulic fluid
US4735048A (en) * 1986-10-24 1988-04-05 The Gregory Company Hydraulic tool
GB2388808A (en) * 2002-05-25 2003-11-26 Emhart Llc Painting of blind rivets

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3153057C2 (en) * 1981-03-31 1985-05-15 Gesipa Blindniettechnik Gmbh, 6000 Frankfurt Pneumatic/hydraulic blind riveter
DE3775768D1 (en) * 1987-08-04 1992-02-13 Subotsch & Schwab Masch RIVETING TOOL TO SET BLIND RIVETS.
US5425164A (en) * 1993-09-01 1995-06-20 Textron Inc. Hand-tool system for installing blind fasteners
US5490311A (en) * 1994-09-08 1996-02-13 Huck International, Inc. Ergonomic installation tool with selectable vacuum pintail collector
GB2301547A (en) * 1995-06-02 1996-12-11 Avdel Systems Ltd Fastener installation tool
BR9811544A (en) * 1997-07-28 2000-08-22 Ober Utensili Pneumatici Srl Pneumatic-hydraulic riveting gun
GB9923266D0 (en) * 1999-10-02 1999-12-08 Textron Fastening Syst Ltd Riveting apparatus
DE10011340A1 (en) * 2000-03-10 2001-09-20 Gesipa Blindniettechnik Pneumatic, hydraulic blind riveting device for inserting blind rivets comprises a pressure space arranged between a resetting piston and a thrust piston which is loaded by a pressure controlled by a control device
GB2394686B (en) * 2001-02-21 2004-10-06 Textron Fastening Syst Ltd Fastener installation tool including fastener-parts collection means
US6612557B2 (en) * 2001-04-30 2003-09-02 Btm Corporation Adjustable stroke clamp
US6425170B1 (en) * 2001-06-04 2002-07-30 Emhart Llc Rivet setting tool with jaw guide and nose housing quick connect
US6649059B2 (en) * 2001-07-05 2003-11-18 Lancer Partnership, Ltd. Apparatus for treating fluids
US6532635B1 (en) * 2002-03-01 2003-03-18 Huck International, Inc. Installation tool for pull type fasteners
JP2004188558A (en) * 2002-12-13 2004-07-08 Nippon Pop Rivets & Fasteners Ltd Fastening device for nut type fastener such as blind nut
US7191824B2 (en) * 2003-11-21 2007-03-20 Dana Canada Corporation Tubular charge air cooler
US7284404B2 (en) * 2005-02-17 2007-10-23 Yu-Ching Lin Intake distributing device of a rivet-nut gun
US7082657B1 (en) * 2005-02-17 2006-08-01 Yu-Ching Lin Automatic suction and repelling device for rivet gun
CN2875652Y (en) * 2006-01-06 2007-03-07 钱俊 Riveting nut gun
GB2436311B (en) * 2006-03-22 2008-04-09 Textron Fastening Syst Ltd Improved hydraulic damper valve
US8070132B2 (en) * 2006-06-19 2011-12-06 Norgren, Inc. Fluid control device with a non-circular flow area

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2192235A (en) * 1986-05-23 1988-01-06 Avdel Ltd Replenishing hydraulic fluid
US4735048A (en) * 1986-10-24 1988-04-05 The Gregory Company Hydraulic tool
GB2388808A (en) * 2002-05-25 2003-11-26 Emhart Llc Painting of blind rivets

Also Published As

Publication number Publication date
MY147819A (en) 2013-01-31
GB2447413B (en) 2009-03-18
CN101588879A (en) 2009-11-25
GB0705144D0 (en) 2007-04-25
WO2008113967A1 (en) 2008-09-25
PL2125268T3 (en) 2010-09-30
MX2008016288A (en) 2009-04-15
BRPI0804473A2 (en) 2011-08-30
US20090205184A1 (en) 2009-08-20
KR20090033452A (en) 2009-04-03
TW200914165A (en) 2009-04-01
AU2008228125A1 (en) 2008-09-25
TWI351996B (en) 2011-11-11
CA2656798A1 (en) 2008-09-25
CN101588879B (en) 2011-10-26
EP2125268A1 (en) 2009-12-02
RU2008151418A (en) 2010-06-27
EP2125268B1 (en) 2010-06-23
DE602008001610D1 (en) 2010-08-05
ES2344540T3 (en) 2010-08-30
JP2010521307A (en) 2010-06-24
ATE471778T1 (en) 2010-07-15

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S73 Revocation on comptroller's initiative (section 73/patents act 1977)

Free format text: PATENT REVOKED; PATENT REVOKED UNDER SECTION 73(2) ON 14 FEBRUARY 2012