EP0000626B1 - Outil à traction pour la pose d'organes de fixation - Google Patents

Outil à traction pour la pose d'organes de fixation Download PDF

Info

Publication number
EP0000626B1
EP0000626B1 EP19780300114 EP78300114A EP0000626B1 EP 0000626 B1 EP0000626 B1 EP 0000626B1 EP 19780300114 EP19780300114 EP 19780300114 EP 78300114 A EP78300114 A EP 78300114A EP 0000626 B1 EP0000626 B1 EP 0000626B1
Authority
EP
European Patent Office
Prior art keywords
cam
arm
pulling device
cam follower
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.)
Expired
Application number
EP19780300114
Other languages
German (de)
English (en)
Other versions
EP0000626A1 (fr
Inventor
David John Holloway
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.)
Tucker Fasteners Ltd
USM Corp
Original Assignee
Tucker Fasteners Ltd
USM Corp
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 Tucker Fasteners Ltd, USM Corp filed Critical Tucker Fasteners Ltd
Publication of EP0000626A1 publication Critical patent/EP0000626A1/fr
Application granted granted Critical
Publication of EP0000626B1 publication Critical patent/EP0000626B1/fr
Expired legal-status Critical Current

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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
    • B21J15/02—Riveting procedures
    • B21J15/022—Setting rivets by means of swaged-on locking collars, e.g. lockbolts

Definitions

  • This invention concerns a pull-type fastener-setting tool suitable for use in setting blind rivets and lockbolts.
  • Such tools engage a pulling stem of the fastener while holding stationary the fastener itself by engagement between an abutment of the tool and a head or collar of the fastener.
  • One known tool which operates in this manner comprises a housing having a configuration resembling that of a pistol comprising a barrel portion which provides an abutment for engagement with a head portion of a fastener and a hand-grip portion.
  • This tool also comprises a pulling device slidable in the barrel portion and arranged to grip a pulling stem of the fastener.
  • This tool also comprises a rotatable handle mounted on the housing and connected by gears to a rotatable cam mounted in the housing and arranged to be rotated by rotation of the handle.
  • This known tool also comprises a cam follower in engagement with a peripheral face of the cam and coupled to the, pulling device so that, upon rotation of the cam by means of the handle, the pulling device is retracted relative to the abutment thereby setting the fastener.
  • the cam follower of the tool is mounted on an arm which is pivoted to the pulling device and the arm is pivoted to a link which is also pivoted to a part of the hand-grip portion of the tool remote from the arm, the link controlling the arm so that the cam follower, although moving with the arm, will remain substantially aligned with the pulling device of the tool.
  • the known tool described above also comprises a second cam follower arranged to engage a second peripheral face of the cam to advance the pulling device towards the abutment of the tool on continued rotation of the handle.
  • the second cam follower is provided by a cam roll mounted on the pulling device.
  • the second cam follower is provided by a shoulder of the arm on which the first cam follower is mounted.
  • a spring is provided to absorb the shock created when the pulling stem of the fastener breaks.
  • the spring is omitted and the second peripheral face of the cam is so shaped that, at the time when the pulling stem of the fastener breaks, the second peripheral face is closely adjacent to the second cam follower so that the cam can absorb the shock.
  • the tool shown in the drawings comprises a housing which is generally pistol-shaped and comprises a hand-grip portion 10 (Figure 1) formed by two castings 12 and 14 bolted together at 16, and a barrel portion 18.
  • a part 20 of the barrel portion 18 is secured to the castings 12 and 14 by an annular flange 22 accommodated in grooves 24 in the castings.
  • a nosepiece 26 is detachably mounted on the part 20 by having a cylindrical rear part 28 thereof mounted in a bore in the part 20 and an annular flange 29 thereof abutting the front end of the part 20.
  • the nosepiece 26 is held in position by a collar 30 and a retaining spring 32.
  • the nosepiece 26 of the barrel portion 18 provides at its front end an abutment 34 for engagement with a head portion provided by a collar C of a lockbolt ( Figure 3) which comprises a bolt B and a pulling stem S.
  • a pulling device is mounted to slide axially within the barrel portion 18.
  • the pulling device comprises a plunger 40, and a jaw case 42 threaded to the forward end of the plunger 40.
  • the jaw case 42 has an internal frusto-conical surface 44 and a cylindrical extension 46 accommodated within the abutment 34.
  • the pulling device also comprises three jaws 48 (only two visible in Figure 3) which engage the surface 44 and are urged forwardly by a spring 50 contained between two flanged sleeves 52 and 54, the sleeve 52 abutting the jaws 48 while the sleeve 54 abuts the front end of the plunger 40.
  • the jaws 48 are provided with teeth which are complementary in shape to radial grooves G on the pulling stem S.
  • the jaws 48 are arranged to grip the pulling stem S. The arrangement is such that ready replacement of the nosepiece 26, the jaw case 42, the jaws 48 and the spring 50 can be achieved so that a different size of lockbolt can be set.
  • the castings 12 and 14 support bearings 60 on which a rotatable cam 62 is mounted within the housing.
  • the cam 62 has two peripheral cam surfaces 64 and 66 and is keyed on a spindle 68 which also carries a gear wheel 70.
  • the gear wheel 70 is meshed with a smaller gear wheel 72 keyed on a spindle 74 also mounted on bearings supported by the castings 12 and 14.
  • a rotatable handle 76 is mounted on the spindle 74 outside the housing and carries a knob 78. Rotation of the handle 76 by an operator, who grips the knob 78, causes rotation of the cam 62 since the handle 76 rotates the gear wheel 72 which in turn rotates the gear wheel 70 and the cam 62.
  • An arm 80 consisting of two parallel plates each containing a clearance hole 81 around the spindle 68, is pivoted at 82 to a rear end portion of the plunger 40 and has mounted thereon, at its rear end portion, a cam follower 84.
  • the cam follower 84 is in the form of a roll and is in engagement with the cam surface 64 of the cam 62.
  • the cam follower 84 is coupled to the pulling device by the arm 80 so that, upon rotation of the handle 76 and therefore of the cam 62, the cam follower 84 is moved rearwardly by the cam surface 64 and the pulling device is retracted relative to the abutment 34.
  • This retraction of the pulling device sets a lockbolt by pulling the stem S thereof and swaging the collar C into locking grooves L of the bolt B.
  • the stem S subsequently breaks at a neck N thereof.
  • the arm 80 is also pivoted on a link 90 which is itself pivoted at 94 to parts of the castings 12 and 14 at the base of the hand-grip portion 10 of the housing, i.e. remote from the arm 80.
  • the link 90 supports the arm 80 and prevents it from swinging to an extent which will bring the cam follower significantly out of alignment with the pulling device.
  • a shoulder 96 on one of the plates forming the arm 80 provides a second cam follower in front of the spindle 68 and arranged to engage the cam surface 66 of the cam 62 ( Figures 1 and 2).
  • Rotation of the handle 76 first presses the cam follower 84 rearwardly setting the lockbolt and then advances the pulling device back towards the abutment 34 by the second cam follower 96 being pressed forwardly by the cam surface 66.
  • Forward movement of the pulling device causes the extension 46 of the jaw case to push the swaged collar C so that the abutment 34 is pulled off the collar C.
  • the broken off pulling stem S of the lockbolt is retained by the jaws 48 during the forward movement of the pulling device and insertion of the next lockbolt to be set causes the broken off stem to be released by the jaws 48 and be projected through the sleeves 52 and 54 and out through slots 100 and 102 in the plunger 40 and the part 20. The jaws 48 then engage the pulling stem of the next lockbolt to be set.
  • the cam surface 66 of the cam 62 is so shaped that, at the time when the pulling stem of the lockbolt breaks, the surface 66 is closely adjacent to the second cam follower 96 so that the shock of the breakage of the pulling stem is taken by the cam 62.
  • the tool can be used with suitable modifications for setting fasteners other than lockbolts, e.g. blind rivets, and is of simple and compact construction.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)

Claims (3)

1. Outil à poser par tirage des dispositifs de fixation comportant un corps qui comprend une poignée ou crosse (10) et un canon (18) qui forme une butée (34) destinée à entrer en contact avec une tête d'un dispositif de fixation, ledit outil comprenant en outre un dispositif de traction (40, 42, 46, 48, 50) coulissant dans le canon (18) et destiné à serrer une tige à tirer du dispositif de fixation, un levier tournant (76) monté sur le corps, une came rotative (62) montée dans le corps et destinée à être mise en rotation par la rotation du levier (76) et une contre-came (84) en contact avec une surface périphérique (64) de la came (62) et accouplée au dispositif de traction (40, 42, 46, 48, 50) de façon que, lors de la rotation de la came, le dispositif de traction soit rétracté par rapport à la butée (34), outil caractérisé en ce que la contre-came (84) est montée sur un bras (80) que est articulé, d'une part, sur le dispositif de traction (40, 42, 46, 48, 50) et d'autre part sur une bielle (90) qui pivote également sur une partie de la poignée (10) qui est éloignée du bras (80), la bielle (90) commandant le bras (80), de façon que la contre-came (84), bien qu'elle se déplace avec le bras (80), reste sensiblement alignée avec le dispositif de traction (40, 42, 46, 48, 50).
2. Outil selon la revendication 1, dans lequel une seconde contre-came (96) est destinée à venir au contact d'une seconde surface périphérique (66) de la came (62) pour faire avancer le dispositif de traction (40, 42, 46, 48, 50) en direction de la butée (34) lors de la poursuite de la rotation du levier (76), outil caractérisé en ce que la seconde contre-came (96) est constituée par un épaulement du bras (80).
3. Outil selon la revendication 2, caractérisé en ce que la seconde surface périphérique (66) de la came (62) est configurée de façon qu'au moment où la tige à tirer du dispositif de fixation casse, la seconde surface périphérique (66) soit à proximité de la seconde contre-came (96).
EP19780300114 1977-07-21 1978-07-03 Outil à traction pour la pose d'organes de fixation Expired EP0000626B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB3059677 1977-07-21
GB3059677 1977-07-21

Publications (2)

Publication Number Publication Date
EP0000626A1 EP0000626A1 (fr) 1979-02-07
EP0000626B1 true EP0000626B1 (fr) 1980-07-23

Family

ID=10310123

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19780300114 Expired EP0000626B1 (fr) 1977-07-21 1978-07-03 Outil à traction pour la pose d'organes de fixation

Country Status (5)

Country Link
EP (1) EP0000626B1 (fr)
JP (1) JPS6048310B2 (fr)
AU (1) AU518541B2 (fr)
DE (2) DE2860066D1 (fr)
ES (1) ES472615A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0179316U (fr) * 1987-11-14 1989-05-29
JPH0716517U (ja) * 1993-06-22 1995-03-17 株式会社電研社 延線用ケーブルハンガー
JPH0711816U (ja) * 1993-07-14 1995-02-21 株式会社電研社 ケーブル延線用具
KR101432992B1 (ko) * 2013-01-08 2014-08-27 한전원자력연료 주식회사 핵연료집합체의 안내관 마개 플라즈마 용접장치
KR101406076B1 (ko) * 2013-01-08 2014-06-13 한전원자력연료 주식회사 핵연료봉의 봉단마개 자동 용접장치
WO2015083520A1 (fr) * 2013-12-06 2015-06-11 三菱重工業株式会社 Outil d'emboutissage

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR741414A (fr) *
GB402671A (en) * 1932-05-11 1933-12-07 Bleriot Aeronautique Improvements in or relating to apparatus for fixing tubular rivets
GB477328A (en) * 1935-05-20 1937-12-20 Jacques Francois Gabriel Chobe Improvements in and relating to apparatus for expanding tubular rivets or other hollow elements
US3033410A (en) * 1957-07-10 1962-05-08 Illinois Tool Works Rivet setter

Also Published As

Publication number Publication date
JPS6048310B2 (ja) 1985-10-26
JPS5423300A (en) 1979-02-21
DE2860066D1 (en) 1980-11-13
AU3804678A (en) 1980-01-17
EP0000626A1 (fr) 1979-02-07
ES472615A1 (es) 1979-02-16
DE7821654U1 (de) 1978-10-26
AU518541B2 (en) 1981-10-08

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