US3548627A - Riveting tools - Google Patents
Riveting tools Download PDFInfo
- Publication number
- US3548627A US3548627A US738485A US3548627DA US3548627A US 3548627 A US3548627 A US 3548627A US 738485 A US738485 A US 738485A US 3548627D A US3548627D A US 3548627DA US 3548627 A US3548627 A US 3548627A
- Authority
- US
- United States
- Prior art keywords
- pulling device
- tool
- rivet
- mandrel
- riveting
- 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 - Lifetime
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-
- 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
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- 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
- Y10T29/53717—Annular work
- Y10T29/53726—Annular work with second workpiece inside annular work one workpiece moved to shape the other
- Y10T29/5373—Annular work with second workpiece inside annular work one workpiece moved to shape the other comprising driver for snap-off-mandrel fastener; e.g., Pop [TM] riveter
- Y10T29/53757—Annular work with second workpiece inside annular work one workpiece moved to shape the other comprising driver for snap-off-mandrel fastener; e.g., Pop [TM] riveter having allochiral actuating handles
Definitions
- the tool includes a body, a pulling device or chuck movable relative to the body, an actuating linkage and an adjustment between the linkage and the tool body to obtain the maximum mechanical advantage from the linkage at the time that the mandrel is broken after setting the rivet.
- This invention is concerned with improvements in or relating to tools adapted for use in blind riveting.
- blind riveting is used herein to denote a procedure in which a hollow rivet, accommodated in a hole in the work, is set at one side of the work by application of a pull to a stern of a mandrel a head of which engages the rivet at that side of the work and the stem of which projects from a head of the rivet at the other side of the work.
- a rivet and a mandrel assembled together ready for use in blind riveting is what is meant by the expression a blind riveting assembly where used hereinafter.
- Blind-riveting assemblies of various types one with the mandrel head exposed and arranged to abut the tail end of the rivet (which has a hole right through it), another with the mandrel head concealed within the barrel of a rivet which is closed at the tail end, are commercially available.
- a tool of a type comprising a body portion which includes a nosepiece adapted to abut the head of the rivet of a blind-riveting assembly, mandrel-gripping means in the form of a plurality of jaws, a pulling device arranged to move within the body portion towards and away from 'the nosepiece, and a leverage mechanism interconnecting the body portion and pulling device and affording a mechanical advantage whereby a force applied to the leverage mechanism can cause a substantially greater force to be exerted by the pulling device, the mechanical advantages increasing as the pulling device moves further from the nosepiece, the tool being so constructed and arranged that (a) rearward movement of the pulling device away from the nosepiece in the operation of the tool first causes the jaws to grip the mandrel stern and thereafter to pull it relative to the head of the rivet abutted by the nosepiece, and that (b) the mandrel stem is released upon forward movement of the pulling device relative to the jaws.
- a tool of this type is what is
- a blind-riveting tool of the type referred to which is arranged to be operated manually by an operator moving a pair of symmetrically disposed arms which form part of the leverage mechanism of the tool.
- the pair of arms of the leverage mechanism of this illustrative tool are pivoted upon the body portion of the tool, and connected by two links to a common bridgepiece to which the pulling device is adjustably coupled.
- the pulling device of the illustrative tool comprises a sleeve and the jaws of the mandrel-gripping means have 3,548,627 Patented Dec. 22, 1970 external faces inclined to the axis of the sleeve and engageable with complementary inclined internal faces of the sleeve.
- the jaws are urged forwardly within the sleeve by spring means and their foremost positions in the body portion are determined by their engagement with a rear face of the nosepiece, which is detachable for replacement by one of another size for use with a different sized blindriveting assembly.
- the sleeve of the pulling device of the illustrative tool has a collar at its rearward end which provides a flange arranged to abut a rearward end face of the body portion of the tool to determine the foremost position of the pulling device.
- the sleeve is rotatable about its axis, and the periphery of the collar is knurled to facilitate turning of the sleeve by the operator.
- the sleeve is threaded on to a threaded stud which projects forwardly from the bridgepiece. Turning of the sleeve thus adjusts the relative dispositions of the sleeve and bridgepiece, which results, for example if the sleeve is turned while in its foremost position, in adjustment of the disposition of the leverage mechanism.
- the stern of a mandrel of a blind-riveting assembly may be inserted through the nosepiece and between the jaws of the mandrel-gripping means, the two arms of the leverage mechanism being spread apart so that the jaws and the pulling device are in their foremost positions.
- the barrel of the rivet can then be inserted in the work and the rivet head pushed against the work by the nosepiece. Closing of the arms effects retraction of the pulling device to cause the jaws first to grip and then to pull the mandrel stem.
- the mechanical advantage obtained from the leverage mechanism in applying a substantially greater force to the pulling device than is applied by the operator to the end portions of the arms remote from their pivotal connections to the body portion increases as the arms are closed.
- the load on the pulling device also increases as the mandrel head is drawn, relative to the rivet, reaching, in the case of a blind-riveting assembly of the kind in which the mandrel stem is arranged to break, a maximum when the mandrel stem is about to break.
- d s s aa the mandrel of a blind-riveting assembly through the nosepiece 14 and between the jaws and inserts the barrel of the rivet into the work. He then closes the arm 50 and in the one, or two, or perhaps three, strokes for which the tool is set completes the rivet-setting operation.
- a blind riveting tool having a body and a pulling device movable relative to the body and including jaws, the foremost positions of the jaws and the pulling device being determined by abutment of the jaws and the pulling device with a portion of the body of the tool, the jaws being adapted to be opened in their foremost position to permit release or insertion of a mandrel stem therebetween, in combination with a leverage mechanism for actuating the pulling device and means operative between the leverage mechanism and the pulling device for adjusting the disposition of the leverage mechanism relative to the body independent of any given position of the pulling device relative to the body.
- a tool according to claim 1 in which the pulling device has a collar having a flange for abutting a rearward end face of the body portion of the tool to determine the foremost position of the pulling device in the body.
- a tool according to claim 1 in which the leverage mechanism comprises two arms operatively connected to the body portion of the tool and to a common bridge piece and in which the pulling device has a rotatable sleeve in threaded engagement with a stud projecting from the bridge piece for adjusting the position of the pulling device relative to the bridge piece.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Portable Nailing Machines And Staplers (AREA)
Description
United States Patent f 3,548,627 RIVETING TOOLS James N. Henshaw, Birmingham, England, assignor to USM Corporation, Flemington, N.J., a corporation of New Jersey Filed June 20, 1968, Ser. No. 738,485 Int. Cl. B21d 9/05 U.S. Cl. 72-391 3 Claims ABSTRACT OF THE DISCLOSURE The disclosure is directed to a shears-type tool for setting blind hollow rivets each including a mandrel, which is pulled from the accessible side of the work to set the rivet on the blind side. The tool includes a body, a pulling device or chuck movable relative to the body, an actuating linkage and an adjustment between the linkage and the tool body to obtain the maximum mechanical advantage from the linkage at the time that the mandrel is broken after setting the rivet.
This invention is concerned with improvements in or relating to tools adapted for use in blind riveting.
The expression blind riveting is used herein to denote a procedure in which a hollow rivet, accommodated in a hole in the work, is set at one side of the work by application of a pull to a stern of a mandrel a head of which engages the rivet at that side of the work and the stem of which projects from a head of the rivet at the other side of the work. A rivet and a mandrel assembled together ready for use in blind riveting is what is meant by the expression a blind riveting assembly where used hereinafter. Blind-riveting assemblies of various types, one with the mandrel head exposed and arranged to abut the tail end of the rivet (which has a hole right through it), another with the mandrel head concealed within the barrel of a rivet which is closed at the tail end, are commercially available.
In blind riveting, it is customary to use a tool of a type comprising a body portion which includes a nosepiece adapted to abut the head of the rivet of a blind-riveting assembly, mandrel-gripping means in the form of a plurality of jaws, a pulling device arranged to move within the body portion towards and away from 'the nosepiece, and a leverage mechanism interconnecting the body portion and pulling device and affording a mechanical advantage whereby a force applied to the leverage mechanism can cause a substantially greater force to be exerted by the pulling device, the mechanical advantages increasing as the pulling device moves further from the nosepiece, the tool being so constructed and arranged that (a) rearward movement of the pulling device away from the nosepiece in the operation of the tool first causes the jaws to grip the mandrel stern and thereafter to pull it relative to the head of the rivet abutted by the nosepiece, and that (b) the mandrel stem is released upon forward movement of the pulling device relative to the jaws. A tool of this type is what is meant by the phrase a blind-riveting tool of the type referred to where used hereinafter.
There is hereinafter described in detail to illustrate the invention by way of example a blind-riveting tool of the type referred to which is arranged to be operated manually by an operator moving a pair of symmetrically disposed arms which form part of the leverage mechanism of the tool. The pair of arms of the leverage mechanism of this illustrative tool are pivoted upon the body portion of the tool, and connected by two links to a common bridgepiece to which the pulling device is adjustably coupled. The pulling device of the illustrative tool comprises a sleeve and the jaws of the mandrel-gripping means have 3,548,627 Patented Dec. 22, 1970 external faces inclined to the axis of the sleeve and engageable with complementary inclined internal faces of the sleeve. The jaws are urged forwardly within the sleeve by spring means and their foremost positions in the body portion are determined by their engagement with a rear face of the nosepiece, which is detachable for replacement by one of another size for use with a different sized blindriveting assembly.
The sleeve of the pulling device of the illustrative tool has a collar at its rearward end which provides a flange arranged to abut a rearward end face of the body portion of the tool to determine the foremost position of the pulling device. The sleeve is rotatable about its axis, and the periphery of the collar is knurled to facilitate turning of the sleeve by the operator. The sleeve is threaded on to a threaded stud which projects forwardly from the bridgepiece. Turning of the sleeve thus adjusts the relative dispositions of the sleeve and bridgepiece, which results, for example if the sleeve is turned while in its foremost position, in adjustment of the disposition of the leverage mechanism.
Using the illustrative tool in blind riveting, the stern of a mandrel of a blind-riveting assembly may be inserted through the nosepiece and between the jaws of the mandrel-gripping means, the two arms of the leverage mechanism being spread apart so that the jaws and the pulling device are in their foremost positions. The barrel of the rivet can then be inserted in the work and the rivet head pushed against the work by the nosepiece. Closing of the arms effects retraction of the pulling device to cause the jaws first to grip and then to pull the mandrel stem. Should a second stroke of the pulling device be necessary to complete the rivet-setting operation (which may include breaking of the mandrel stem), the arms are spread apart to allow the mandrel stem to be released and the nosepiece to be pushed up the mandrel stem into abutment again with the rivet head (forward movement of the pulling device within the body portion of the tool before release of the mandrel stem having resulted in the nosepiece moving away from the rivet head); release of the mandrel stem is ensured when the jaws have reached their foremost positions in the body portion and the pulling device has moved further forward to its foremost position. A second stroke can now be imparted to the pulling device by again closing the arms of the leverage mechanism. If necessary, yet a third stroke can be made.
In the illustrative tool, the mechanical advantage obtained from the leverage mechanism in applying a substantially greater force to the pulling device than is applied by the operator to the end portions of the arms remote from their pivotal connections to the body portion, increases as the arms are closed. The load on the pulling device also increases as the mandrel head is drawn, relative to the rivet, reaching, in the case of a blind-riveting assembly of the kind in which the mandrel stem is arranged to break, a maximum when the mandrel stem is about to break. Whether rivet-setting with one or more strokes, it is possible by turning the sleeve of the pulling device so to vary the disposition of the leverage mechanism that the said arms are nearly closed, and the mechanical advantage of the leverage mechanism at its greatest, when the rivet-setting load is at its maximum. The provision for such adjustment is especially useful where an operator is setting a large number of similar rivets under uniform conditions (e.g. uniform work thickness) so that once carefully adjusted, the tool can be used repeatedly to best advantage. Such conditions may be found for example, on building sites where the operator may be suspended in a cradle by the wall of a building; in such an instance, the illustrative tool not only enables rivets to be set with minimum fa- Dec. 22, 1970 J. N. HENSHAW RIVETING TOOLS Filed June 20, 1968 y rm; m; MM www mm i v vi'flfluvjwii I 5. d s s aa the mandrel of a blind-riveting assembly through the nosepiece 14 and between the jaws and inserts the barrel of the rivet into the work. He then closes the arm 50 and in the one, or two, or perhaps three, strokes for which the tool is set completes the rivet-setting operation.
Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:
1. A blind riveting tool having a body and a pulling device movable relative to the body and including jaws, the foremost positions of the jaws and the pulling device being determined by abutment of the jaws and the pulling device with a portion of the body of the tool, the jaws being adapted to be opened in their foremost position to permit release or insertion of a mandrel stem therebetween, in combination with a leverage mechanism for actuating the pulling device and means operative between the leverage mechanism and the pulling device for adjusting the disposition of the leverage mechanism relative to the body independent of any given position of the pulling device relative to the body.
2. A tool according to claim 1 in which the pulling device has a collar having a flange for abutting a rearward end face of the body portion of the tool to determine the foremost position of the pulling device in the body.
3. A tool according to claim 1 in which the leverage mechanism comprises two arms operatively connected to the body portion of the tool and to a common bridge piece and in which the pulling device has a rotatable sleeve in threaded engagement with a stud projecting from the bridge piece for adjusting the position of the pulling device relative to the bridge piece.
References Cited UNITED STATES PATENTS CHARLES W. LANHAM, Primary Examiner GENE P. CROSBY, Assistant Examiner US. Cl. X.R. 72409
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US73848568A | 1968-06-20 | 1968-06-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3548627A true US3548627A (en) | 1970-12-22 |
Family
ID=24968224
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US738485A Expired - Lifetime US3548627A (en) | 1968-06-20 | 1968-06-20 | Riveting tools |
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Country | Link |
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US (1) | US3548627A (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3630067A (en) * | 1969-05-10 | 1971-12-28 | Usm Corp | Fluid pressure operated head for setting mandrel rivets |
US3760627A (en) * | 1971-12-13 | 1973-09-25 | Richline Co Inc | Rivet gun |
US3782165A (en) * | 1970-04-24 | 1974-01-01 | Gesipa Internationale Gmbh | Riveting tongs for blind rivets |
US4136547A (en) * | 1978-04-04 | 1979-01-30 | Parker Manufacturing Company | Riveter |
EP0005800A1 (en) * | 1978-05-26 | 1979-12-12 | Firma Benj. Linder | Riveting tool for riveting blind rivets |
US4653308A (en) * | 1985-11-06 | 1987-03-31 | The Gregory Company | Adjustable lever operated riveter |
US4930335A (en) * | 1989-07-03 | 1990-06-05 | Kosei Ishihara | Lever-type auto body dent puller |
DE9110718U1 (en) * | 1991-08-29 | 1992-06-04 | Alfred Honsel Nieten- und Metallwarenfabrik GmbH & Co, 5758 Fröndenberg | Blind rivet hand pliers |
EP0546382A1 (en) * | 1991-12-13 | 1993-06-16 | MASCHINENBAU SUBOTSCH GmbH | Hand riveting tool |
US20140345099A1 (en) * | 2013-05-22 | 2014-11-27 | Karat Industrial Corporation | Hand-held Rivet Nut (Rivet Bolt) Tool with a Replaceable Mandrel-Driving Device |
US11673243B2 (en) | 2018-09-05 | 2023-06-13 | Milwaukee Electric Tool Corporation | Blind rivet nut-setting tool |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1829696A (en) * | 1930-04-07 | 1931-10-27 | Armstrong Whitworth Co Eng | Riveting tool |
FR866573A (en) * | 1940-04-17 | 1941-08-20 | Applic Physiques Et Mecaniques | Mechanically expanded rivet, and tools for installation |
US2399442A (en) * | 1942-06-19 | 1946-04-30 | Richard W Luce | Tool |
GB606825A (en) * | 1946-01-19 | 1948-08-20 | British United Shoe Machinery | Improvements in or relating to riveting tools |
GB776929A (en) * | 1954-06-14 | 1957-06-12 | Tucker Eyelet Co George | Improvements in or relating to blind riveting and blind-riveting tools |
US3328985A (en) * | 1964-07-15 | 1967-07-04 | Malco Products Inc | Rivet gun device |
US3363445A (en) * | 1963-04-05 | 1968-01-16 | Avdel Ltd | Blind riveting |
-
1968
- 1968-06-20 US US738485A patent/US3548627A/en not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1829696A (en) * | 1930-04-07 | 1931-10-27 | Armstrong Whitworth Co Eng | Riveting tool |
FR866573A (en) * | 1940-04-17 | 1941-08-20 | Applic Physiques Et Mecaniques | Mechanically expanded rivet, and tools for installation |
US2399442A (en) * | 1942-06-19 | 1946-04-30 | Richard W Luce | Tool |
GB606825A (en) * | 1946-01-19 | 1948-08-20 | British United Shoe Machinery | Improvements in or relating to riveting tools |
GB776929A (en) * | 1954-06-14 | 1957-06-12 | Tucker Eyelet Co George | Improvements in or relating to blind riveting and blind-riveting tools |
US3363445A (en) * | 1963-04-05 | 1968-01-16 | Avdel Ltd | Blind riveting |
US3328985A (en) * | 1964-07-15 | 1967-07-04 | Malco Products Inc | Rivet gun device |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3630067A (en) * | 1969-05-10 | 1971-12-28 | Usm Corp | Fluid pressure operated head for setting mandrel rivets |
US3782165A (en) * | 1970-04-24 | 1974-01-01 | Gesipa Internationale Gmbh | Riveting tongs for blind rivets |
US3760627A (en) * | 1971-12-13 | 1973-09-25 | Richline Co Inc | Rivet gun |
US4136547A (en) * | 1978-04-04 | 1979-01-30 | Parker Manufacturing Company | Riveter |
EP0005800A1 (en) * | 1978-05-26 | 1979-12-12 | Firma Benj. Linder | Riveting tool for riveting blind rivets |
US4653308A (en) * | 1985-11-06 | 1987-03-31 | The Gregory Company | Adjustable lever operated riveter |
US4930335A (en) * | 1989-07-03 | 1990-06-05 | Kosei Ishihara | Lever-type auto body dent puller |
DE9110718U1 (en) * | 1991-08-29 | 1992-06-04 | Alfred Honsel Nieten- und Metallwarenfabrik GmbH & Co, 5758 Fröndenberg | Blind rivet hand pliers |
EP0546382A1 (en) * | 1991-12-13 | 1993-06-16 | MASCHINENBAU SUBOTSCH GmbH | Hand riveting tool |
US5323521A (en) * | 1991-12-13 | 1994-06-28 | Maschinenbau Subotsch & Schwab Gmbh | Hand riveting tool |
AU666498B2 (en) * | 1991-12-13 | 1996-02-15 | Maschinenbau Subotsch Verwaltungs-und Beteiligungs - GmbH | Hand riveting tool |
US20140345099A1 (en) * | 2013-05-22 | 2014-11-27 | Karat Industrial Corporation | Hand-held Rivet Nut (Rivet Bolt) Tool with a Replaceable Mandrel-Driving Device |
US9162278B2 (en) * | 2013-05-22 | 2015-10-20 | Karat Industrial Corporation | Hand-held rivet nut tool with a replaceable mandrel-driving device |
US11673243B2 (en) | 2018-09-05 | 2023-06-13 | Milwaukee Electric Tool Corporation | Blind rivet nut-setting tool |
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