EP0689888B1 - Blindbefestigersetzgerät - Google Patents

Blindbefestigersetzgerät Download PDF

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Publication number
EP0689888B1
EP0689888B1 EP95108717A EP95108717A EP0689888B1 EP 0689888 B1 EP0689888 B1 EP 0689888B1 EP 95108717 A EP95108717 A EP 95108717A EP 95108717 A EP95108717 A EP 95108717A EP 0689888 B1 EP0689888 B1 EP 0689888B1
Authority
EP
European Patent Office
Prior art keywords
mouthpiece
polygon
housing
pull mechanism
mandrel guide
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
Application number
EP95108717A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0689888A1 (de
Inventor
Lothar Wille
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.)
Gesipa Blindniettechnik GmbH
Original Assignee
Gesipa Blindniettechnik 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 Gesipa Blindniettechnik GmbH filed Critical Gesipa Blindniettechnik GmbH
Publication of EP0689888A1 publication Critical patent/EP0689888A1/de
Application granted granted Critical
Publication of EP0689888B1 publication Critical patent/EP0689888B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B21J15/10—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
    • B21J15/02—Riveting procedures
    • B21J15/04—Riveting hollow rivets mechanically
    • B21J15/043—Riveting hollow rivets mechanically by pulling a mandrel
    • 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
    • Y10T29/53761—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 repositionable annulus engaging tool

Definitions

  • the invention relates to a blind fastener setting device a pull mechanism and an adjustable one Mouthpiece, which has several mandrel guide channels, from one of which can be aligned in relation to the pulling mechanism is.
  • Blind rivets are mainly used as blind fasteners used. However, blind rivet nuts are also understood underneath.
  • the most common rivet dimensions today are between 2.4 and 5 mm diameter in different Materials.
  • the diameter of the mandrels attached to a predetermined breaking point when the required Tear off setting force have diameters from 1.5 to 3.2 mm. That is why the mouthpieces that are on the rivet head supports the rivet mandrel diameters be adjusted.
  • the thorn can pass through the Rivet can be pulled through without demolition.
  • the mouthpiece always has to suitable for the rivet size used.
  • US 4,648,259 shows an adjustable mouthpiece for Blind rivet setting tools.
  • the mouthpiece is in essentially of two cheeks.
  • Each cheek has one triangular recess so that the opposite Bake together an approximately rectangular or form a square mandrel guide channel.
  • the two Cheeks taper towards the tip. You can with Help a union nut in the area of its tip more or less closely approximated by tilting will.
  • With a larger diameter of the mandrel guide channel arises between the two jaws Slit clearly visible on the rivet head.
  • the mandrel guide channel is reduced, the two contact surfaces that are still available with large diameters are arranged coplanar, at an angle to the rivet head. This on the one hand leads to a visible impression the rivet head and on the other hand also worsens that Setting behavior.
  • EP 0 173 817 shows a blind fastener setting device of the type mentioned above.
  • the mouthpiece is here an axis rotatable, which has an angle of about 45 ° to the pulling direction of the pulling mechanism.
  • the Mandrel guide channels are accordingly at this angle inclined to the axis.
  • the disadvantage here is a relatively high production cost for mouthpiece and housing. Is also one relatively large size required for the housing. In particular, its diameter must be large to get voted. This makes the device heavy and unwieldy.
  • rivets are required Have rivet mandrels with excess lengths, so the pulling mechanism through the mouthpiece and the necessary housing parts guided spines can capture.
  • the invention has for its object a quick Allow change of mandrel sizes.
  • This task is done with a blind fastener setting tool of the type mentioned in that the Mouthpiece in the shape of an odd number Has polygons, the mandrel guide channels from one side to the opposite corner.
  • corner only means the transition between two sides. It is not necessary that the two sides forming the corner here under one collide certain angle. Also a transition is in the form of a curve or a polygon possible.
  • Polygons will allow a variety of mandrel guide channels to pass through the mouthpiece without that the diameters influence each other.
  • On one end of each mandrel guide channel is through the Side of the polygon is given a flat surface to which the rivet can put on when setting without using any profiles or impressions will.
  • the height of the mouthpiece exceeds of conventional mouthpieces not at all or only in to a small extent. You can therefore rent without normal Process long rivet mandrels.
  • the enlargement of the Weight is practically barely noticeable.
  • the housing of the Device can be more or less from its outer dimensions are left less unchanged.
  • the polygon is preferably a regular polygon educated. On the one hand, this simplifies production the mouthpiece and on the other hand the storage of the mouthpiece in the device. Regardless of the size of the mandrel guide channel the mouthpiece can always be the same Manage and deal with ways.
  • the mouthpiece is essentially one stationary axis rotatable, perpendicular to the direction of pull the pull mechanism runs.
  • the mouthpiece remains So when moving essentially stationary in the device. This drastically reduces the risk of loss.
  • the setting is simplified because a certain Alignment of the mouthpiece through the fixed storage is specified. The rotatability increases the ease of use quite considerable.
  • the mouthpiece preferably points perpendicular to the mandrel guide channels protruding journal with which it is supported on a bearing part of the housing, in contrast the pull mechanism is movable.
  • the housing thus absorbs the forces that the Pulling mechanism on the mandrel.
  • the bearing journals serve on the one hand to transfer power from the mouthpiece to the housing, but also for adjustability of the mouthpiece.
  • the journals are round.
  • the journals are round.
  • a fixation can be made of the mouthpiece in the assumed position to reach.
  • the side of the peg polygon that is on the Surface is due to the angular position of the pin substantially parallel to the mouthpiece to the side of the mouthpiece, which in this position is the Forms contact surface for the rivet head.
  • the area extends essentially perpendicular to the direction of pull, thus the normal vector of the surface parallel to Direction of train runs, here is that on the rivet head acting force completely absorbed.
  • the on the surface adjacent side of the cone polygon causes one increased resistance to twisting of the mouthpiece.
  • the Mouthpiece must be moved at least a little bit so that the side of the pin of the surface can stand out.
  • the mouthpiece preferably projects in the ready state with a corner of the polygon in a recess in one Housing part and is at least with a part the sides enclosing the corner on the housing part on.
  • “standby state” the state is closed understand in which the device has a blind rivet (or a Blind rivet nut), to then close it put.
  • the pull mechanism is at its forefront Position. In this condition, the mouthpiece be fixed so that no accidental adjustment occurs, i.e. the desired diameter of the mandrel guide channel is actually available. Once the Pulling mechanism has taken hold of the thorn is this fixation no longer necessary to this extent because of the mandrel the mouthpiece in the appropriate orientation holds.
  • the corner of the polygon is used for fixation of the mouthpiece in the standby state.
  • this corner protrudes into a recess in the housing part and at the same time the two enclosing the corner Sides at least partially rest on the housing part, is an accidental twisting of the mouthpiece practically excluded.
  • this polygon also offers the others Advantage that the fixation without additional measures is greatly simplified.
  • the housing part is preferably opposite the housing movable. This makes it easier to adjust the mouthpiece. You only have to move the housing part so far that the corner protruding into the housing part from the housing part can be moved out. If now the housing part moved back to its original position the mouthpiece is fixed.
  • means are preferably provided that one increased friction between the housing part and the housing cause.
  • the housing part remains because of the increased Friction normally in its set Status. To move it, are acting from the outside Forces required, for example, by an operator must be applied. An accidental Moving the housing part relative to the housing, about in the course of a work process, however largely prevented.
  • the housing part is advantageously in the ready state acted upon by a restoring force.
  • the restoring force thus secures the mouthpiece against twisting because she presses the housing part against the mouthpiece.
  • the restoring force via the pull mechanism on the housing part works.
  • a restoring force for the pull mechanism is applied.
  • the pull mechanism must move back a small distance will. This can be done either by hand or done by motor. This then becomes the housing part released so far that it shifted relative to the housing can be.
  • the housing part is preferably a jaw opening device trained for the pull mechanism. If the Pull mechanism moved back to its front end position in the standby state, must be Open jaws to dispense the old mandrel and to be able to pick up a new mandrel. If now the housing part is designed so that it is simultaneously can serve as a jaw opening device ensures that the housing part in the ready state always with the necessary force against the mouthpiece is pressed. As soon as the mandrel is removed the operator knows that the fixation of the Mouthpiece is reached again.
  • the mouthpiece is advantageously on both sides the mandrel guide channels essentially symmetrical trained spherical disc formed on her Scope in the area of one mouth of each mandrel guide channel has a substantially flat flattening.
  • the mandrel guide channels are in one Plane that forms the center plane of the spherical disc. If a ball or spherical disc is flattened, the flattening takes on a circular shape. But this is exactly the shape that serves as a contact surface for the rivet head is desired.
  • a spherical disc can be relatively easily manufacture, for example as a turned part.
  • the flattenings can be attached just as easily, for example by milling.
  • the shape of the polygon is only in the Middle plane recognizable.
  • the two ends of the Ball disc can only be a circle from the outside detect. Accordingly, if this is used the recess in the housing part in the area the end faces of the spherical disc with corresponding Be provided with inner radii.
  • the width of the spherical disk preferably corresponds to essentially the length of one side of the polygon.
  • the Mouthpiece is so given dimensions kept as small as possible.
  • the flattenings then have a diameter that is exactly the width of the mouthpiece or the spherical disc.
  • the individual flats then collide at the corners of the polygon.
  • a union nut is advantageously provided, that holds the mouthpiece in the housing.
  • Such a nut can be easily screwed on. But there is the mouthpiece has the necessary freedom of movement inside, so that it can be adjusted accordingly.
  • the union nut preferably only acts on this the trunnions, so that the mouthpiece though when others Fixations are removed, can be freely rotated, but is still held captive in the housing.
  • the union nut has a through opening that faces the mouthpiece expanded conically. On the one hand, this only leaves a little gap between the union nut and Mouthpiece exist so that the penetration of dirt is difficult. Such dirt could increase mobility of the mouthpiece in the housing. On the other hand, the conical expansion allows one free movement of the mouthpiece without the cap nut must be placed excessively far outside. Especially in connection with the spherical disc shape of the Mouthpiece there are advantages here because namely Ball disc with corresponding curves relatively free step past the inside of the union nut can.
  • a blind rivet setting device 1 has one in a housing 2 movable pull mechanism 3 with chuck jaws 4, pressure piece 5 and a return spring 6.
  • the pull mechanism 3 can by a not shown Drive that can be moved manually or by motor, from the standby position shown to the right be moved. Here the chuck jaws 4 approach each other. A rivet mandrel, not shown, which in the setting tool 1 has been inserted is then detected and also pulled to the right. Building a such pull mechanism and the operation of a In principle, blind rivets are well known. On them will only be dealt with in the following if necessary is.
  • the one Has a plurality of mandrel guide channels 8.
  • the mouthpiece 7 is shown in front view in FIG. 4.
  • the Mouthpiece is formed by a spherical washer 11 a diameter D.
  • the spherical disc extends essentially symmetrical on both sides of its central plane 9.
  • the mandrel guide channels 8 are in this central plane arranged.
  • bearing pins 10 are arranged on both sides of the mouthpiece 7 arranged.
  • the ball washer 11 has a number on its circumference provided by flats 13. Because every flat flattening a sphere forms a circular surface therefore on the peripheral surface of the spherical washer 11 and thus on the circumference of the mouthpiece 7 a number of circular flats that have a diameter a exhibit. This diameter a corresponds essentially the width b of the spherical disc 11. The individual Circular areas formed by the flats 13 are therefore encounter in the central plane 9 of the mouthpiece 7 to each other. The mouthpiece 7 then points in the area its central plane 9 in cross section the shape of a Polygons on, as can be seen from Fig. 1. This Polygon is regularly trained, i.e. his sides 14 all have the same length a. The polygon has an odd number of pages 14 and corners 15. The concept of corners 15 is only a connection here to understand between two sides 14. The corners 15 can also by a transition between two sides 14 be formed, which is rounded or the shape of a Has polygon.
  • the mandrel guide channels 8 are now through channels, for example as holes, through the mouthpiece 7 trained and that they extend from one side 14 to the opposite corner 15.
  • the mandrel guide channel 8 therefore always extends an essentially flat surface due to the flattening 13 is formed. On this flat surface, the Apply rivet head when setting.
  • the corner 15 protrudes into a recess 16 in a housing part 17.
  • the recess 16 is used to carry out a Rivet mandrels towards the chuck jaws 4. You expanded is approximately V-shaped towards the front end, so that the Sides 14 of the mouthpiece 7 rest on the housing part 17 can.
  • the housing part 17 is in a sliding part 18 arranged axially relative to the housing 2, i.e. 1 can be moved from left to right and vice versa is.
  • a round ring 19 provided, for example made of rubber, for one Friction between the sliding part 18 and the housing 2 cares.
  • the sliding part 18 can therefore only against one moved certain resistance to the housing 2 will.
  • a fastening ring 20 is provided which holds the housing part 17 in the sliding part 18. in the Housing 2 has an opening 21 through which the Projecting through the housing part 17.
  • the housing part 17 indicates one of the pull mechanism 3 pointing projection 22 which is bevelled outwards and as an opening mechanism for the chuck jaws 4 serves.
  • the chuck jaws 4 are through the Force of the return spring 6 pressed against the projection 22.
  • the housing part 17 in the Fig. 1 standby position against the Mouthpiece 7 pressed.
  • the mouthpiece 7 is therefore in the set position fixed.
  • a union nut 23 which has an opening 24 through which the mouthpiece 7 protrudes through.
  • the opening 24 widens conically inside. So it arises between the union nut 23 and the mouthpiece 7 only a narrow gap 25. Due to the shape of the mouthpiece 7, which comes from the spherical disc 11 was created, can be conical Widen the opening 24 of the gap 25, without the rotatability of the mouthpiece 7 in the housing 2 is affected.
  • the union nut acts on the Bearing pin 10 of the mouthpiece 7.
  • the pull mechanism 3 In order to twist the mouthpiece 7, the pull mechanism 3 operated. It moves through a certain amount Route to the right. It is not necessary that it will move to its end position. It is enough from when the chuck jaws 4 the protrusion 22 so far release that the housing part 17 through the sliding part 18 is moved as far to the right that the mouthpiece 7 comes free from the recess 16. In this Case it is no longer fixed. It can therefore in the Bearings 12 can be rotated freely. As soon as the mandrel guide channel 8 with the desired diameter on the Front appears, the pull mechanism 3 is again move to the left. Here the chuck jaws press 4 the housing part 17 again in contact with the mouthpiece 7, so that the mouthpiece is fixed.
  • the pull mechanism will move 3 also to the right, which increases the pressure subsides on the housing part 17 and later canceled becomes.
  • the mandrel is through the mandrel guide channel 8 and the recess 16 in the Feed jaws 4 out, so that the fixation of the mouthpiece 7 done by the mandrel itself.
  • the formation of the mouthpiece 7 as a pentagon is sufficient for most use cases. On the one hand there are enough different diameters of the mandrel guide channels 8 available, namely five pieces. On the other hand the mouthpiece is still stable enough to accommodate larger ones To be able to absorb tensile forces.
  • FIG. 5 shows a further embodiment of a mouthpiece 7 '.
  • the only difference is the shape of the Bearing pin 10 '.
  • This also shows in cross section the shape of a polygon based on that in the mathematical sense is similar to the polygon of the mouthpiece 7, i.e. the number the corners that are angles and aspect ratios equal.
  • the polygon of the pin 10 ' is around one Angle ⁇ rotated relative to the polygon of the mouthpiece 7 '.
  • the polygon of the cone 10 'around one through the axis of rotation and parallel to one Page 14 level 26 is mirrored.
  • Fig. 2 With this page d can the bearing pin 10 'supported on a bearing surface 12' are shown in dashed lines in Fig. 2 is. This ensures security against twisting achieved that the mouthpiece 7 'with its journal 10 'initially by a certain distance from the Bearing surface 12 'must be lifted so that it rotates can be.
  • the housing part 17 can in this case Housing be firm, so it can also be in one piece with the Housing 2 may be formed.

Landscapes

  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Insertion Pins And Rivets (AREA)
  • Fuses (AREA)
  • Vehicle Step Arrangements And Article Storage (AREA)
  • Push-Button Switches (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Moulding By Coating Moulds (AREA)
  • Lifting Devices For Agricultural Implements (AREA)
  • Seats For Vehicles (AREA)
  • Nozzles (AREA)
  • Connection Of Plates (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Slide Fasteners, Snap Fasteners, And Hook Fasteners (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Blinds (AREA)
  • Massaging Devices (AREA)
  • Dowels (AREA)
EP95108717A 1994-06-30 1995-06-07 Blindbefestigersetzgerät Expired - Lifetime EP0689888B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4422877A DE4422877A1 (de) 1994-06-30 1994-06-30 Blindbefestigersetzgerät
DE4422877 1994-06-30

Publications (2)

Publication Number Publication Date
EP0689888A1 EP0689888A1 (de) 1996-01-03
EP0689888B1 true EP0689888B1 (de) 1998-04-22

Family

ID=6521881

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95108717A Expired - Lifetime EP0689888B1 (de) 1994-06-30 1995-06-07 Blindbefestigersetzgerät

Country Status (12)

Country Link
US (1) US5603151A (hu)
EP (1) EP0689888B1 (hu)
AT (1) ATE165261T1 (hu)
AU (1) AU686376B2 (hu)
BR (1) BR9503011A (hu)
CZ (1) CZ158195A3 (hu)
DE (1) DE4422877A1 (hu)
FI (1) FI953194A (hu)
HU (1) HU212658B (hu)
NO (1) NO952621L (hu)
PL (1) PL309420A1 (hu)
ZA (1) ZA954877B (hu)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2357056B (en) * 1999-12-06 2003-11-19 Textron Fastening Syst Ltd Riveting tool
DE102007050248B3 (de) * 2007-10-20 2009-04-16 Gesipa Blindniettechnik Gmbh Setzeinheit zum Setzen von Schließringbolzen
IT1398327B1 (it) * 2010-02-26 2013-02-22 Cembre Spa Dispositivo di tiro per tirare un punzone attraverso una bussola di contatto
US9956606B1 (en) * 2017-11-29 2018-05-01 Yu-Tang Lin Quick-disassemble snapping device of a rivet gun
EP4230325A1 (en) * 2022-02-22 2023-08-23 Black & Decker, Inc. Blind rivet setting tool

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1142797A (en) * 1914-10-08 1915-06-15 Ralph Burrell Device for clenching eyelets and hooks.
DE3124648C2 (de) * 1981-06-23 1986-05-28 Nihon Nejimawashi Co., Ltd., Osaka "Hand-Nietkopfsetzer"
US4450050A (en) * 1983-02-03 1984-05-22 M&T Chemicals Inc. Process for bonding high efficiency chromium electrodeposits
US4552010A (en) * 1984-07-09 1985-11-12 Olympic Fastening Systems Pulling head for blind fasteners
US4648259A (en) * 1985-08-22 1987-03-10 Usm Corporation Adjustable nose piece
US4825682A (en) * 1988-05-23 1989-05-02 Mihkel Orav Adjustable crimping tool
US5361474A (en) * 1994-01-25 1994-11-08 Yang Ah Mi Riveter

Also Published As

Publication number Publication date
DE4422877A1 (de) 1996-01-04
ATE165261T1 (de) 1998-05-15
CZ158195A3 (en) 1996-04-17
PL309420A1 (en) 1996-01-08
NO952621D0 (no) 1995-06-29
US5603151A (en) 1997-02-18
HU212658B (en) 1996-09-30
BR9503011A (pt) 1996-01-23
HUT71876A (en) 1996-02-28
ZA954877B (en) 1996-01-31
FI953194A (fi) 1995-12-31
HU9501889D0 (en) 1995-08-28
EP0689888A1 (de) 1996-01-03
FI953194A0 (fi) 1995-06-28
AU2333095A (en) 1996-01-18
AU686376B2 (en) 1998-02-05
NO952621L (no) 1996-01-02

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