EP0593626B1 - A portable riveting machine and a rivet supply therefor - Google Patents
A portable riveting machine and a rivet supply therefor Download PDFInfo
- Publication number
- EP0593626B1 EP0593626B1 EP92915232A EP92915232A EP0593626B1 EP 0593626 B1 EP0593626 B1 EP 0593626B1 EP 92915232 A EP92915232 A EP 92915232A EP 92915232 A EP92915232 A EP 92915232A EP 0593626 B1 EP0593626 B1 EP 0593626B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tape
- container
- supply
- rivet
- machine
- 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
Links
Images
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
- B21J15/30—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
- B21J15/323—Devices for inserting or holding rivets in position with or without feeding arrangements using a carrier strip
-
- 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
-
- 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
Definitions
- This invention relates to a portable riveting machine and a rivet supply therefor.
- the rivet carrier tape carries equally spaced rivets firmly held in a carrier tape of a resiliently flexible material. Tape feed and discharge tubes are mounted at opposite sides of the elongate body.
- the rivet carrier tape may be supplied from an overhead spool, through the feed tube and into the riveting head at the lower end of the elongate body. After each riveting operation the tape is indexed to advance the next rivet to the discharge position and the used tape is fed through the discharge tube.
- Such continuous spool feed is disadvantageous in that portability is limited by the need to maintain a short distance between the spool and the upper end of the feed tube so as to prevent snagging and consequent misfeeding of the tape. It has been proposed to overcome this difficulty by replacing the feed and discharge guide tubes by an inverted U-tube holding a strip of rivets cut from a spool.
- U-tube Although the provision of a U-tube provides complete portability it has attendant disadvantages in that it increases the overall length of the riveting machine thereby preventing access into certain components, the weight of the machine is increased, the operator's view may be obstructed, the number of rivets remaining in the U-tube is not visible, and the U-tube holds relatively few rivets and therefore requires frequent reloading from a nearby spool which may become soiled.
- a portable riveting machine comprising a punch adapted to drive successive rivets from a rivet carrier tape fed thereto from a supply coil, characterised in that the supply coil is a single width of tape spirally wound about a central void within a container having an internal peripheral surface which is in contact over substantially its full length with the outermost layer of the tape to exert a consistent back tension on the tape and guide it during discharge.
- the container is at least partially transparent to permit observation of the supply coil remaining therein.
- a supply of rivet carrier tape for use in a portable riveting machine, wherein a single width of tape is spirally wound about a central void within a container having an internal peripheral surface which is in contact over substantially its full length with the outermost layer of the tape to exert a consistent back tension on the tape and guide it during discharge.
- a portable riveting machine has an elongate body 1 including a hydraulic cylinder 2 and a riveting head 3.
- the body 1 is mounted on the upper jaw of a C-frame 4 by means of a locking frame 5 such that the riveting head 3 is positioned above a rivet upsetting die 6 mounted on the lower jaw of the C-frame 4.
- a rivet tape 7 is indexed through the riveting head 3 from a feed tube 8.
- the rivet tape 7 comprises a row of equally spaced rivets 9 held in a flexible carrier tape 10.
- the used carrier tape 10 is fed into a discharge tube 11.
- the rivets 9 are ejected from the tape 10 in the riveting head 3 by a punch (not shown) operated by the hydraulic cylinder 2. The force of the punch is sufficient to drive the rivets 9 at least partially through components to be joined and against the upsetting die 6.
- the tape feed and discharge tubes 8, 11 are of reduced length and mounted at opposite sides of the machine body 1 on horizontal clamping bars 12, 13 of the lockable frame 5.
- a rivet supply 14 is held in a holder 15 mounted on the upper end of the feed tube 8 by means of a bracket 16 connected to a clamp 17.
- the clamp 17 is in the form of a split sleeve with a hinge 18 at one side and a hand-tightenable fastener 19 at the opposite side.
- the clamp 17 may readily be slackened to permit pivotal movement of the holder 15 from the position shown in Fig. 1 to the positions at right angles thereto referenced 15' and 15'' in Fig. 2 or any intermediate position as required. Additionally, if the machine body 1 is turned about its longitudinal axis through 180° relative to the C-frame 4 thereby reversing the feed direction of the rivet tape 7, the clamp 17 may be removed from the tube 8 (which now becomes the discharge tube) and attached to the tube 11 (which now becomes the feed tube).
- the holder 15 has generally U-shaped front and rear walls 20, 21 interconnected by side walls 22 and a floor 23 so as to provide a receiving pocket for the rivet supply 14.
- the floor 23 has a flared opening 24 (see also the inset to Fig. 1) registering with the tube 8.
- the rivet supply 14 comprises a container 25 made from a square sheet 26 of stiff card material adhesively connected to a correspondingly shaped sheet 27 which is vacuum formed in clear synthetic plastics material to provide an annular cavity 28 defined by a generally cylindrical outer wall 29 and a central boss 30 of hollow frustoconical shape with a flat inner end wall 31 adhesively connected to the card sheet 26.
- the depth of the container 25, i.e. the axial dimension of the cylindrical wall 29, is only slightly greater than the width of the rivet tape 7.
- the container wall 29 merges with an outlet stub 32.
- a single width of rivet tape 7 is spirally coiled within the container 25 about the central void or cavity 28.
- the leader 35 of the rivet tape 7 is attached by a short length of adhesive tape 33 to a bung 34 inserted into the outlet stub 32.
- the bung 34 is removed to open the container 25 the leader 35 of the rivet tape 7 is pulled out of the container 25 so that it can be easily grasped by hand.
- the bung 34 and the adhesive tape 33 may be removed.
- the rivet tape 7 is a parallel-sided strip of flexible synthetic plastics material with a central row of undersize holes in which are inserted the rivets 9 save at the leader 35 where the rivets are absent in order to permit the tape 7 to be threaded into the riveting head 3 at the start of the riveting operation.
- the rivets 9 are directed inwardly within the container 25.
- the coils of tape 7 are wound inwardly from the inner surface of the cylindrical wall 29 so as to leave the void 28 around the central boss 30.
- the coiled tape 7 is positioned within the container 25 before the plastics sheet 27 is closed by the card sheet 26 under the application of heat and pressure.
- the rivet supply 14 is a snug fit in the holder 15 the internal width of which is only slightly larger than the overall thickness of the rivet supply 14. Before insertion into the holder 15 the rivet supply 14 is opened as described above, the adhesive tapes 33 and bung 34 are discarded and the exposed leader 35 is fed through the opening 24 and the feed tube 8 and threaded into the riveting head 3. As the rivet supply 14 is lowered into the pocket provided by the holder 15 the outlet stub 32 of the container 25 is received in the flared opening 24 immediately above the tube 8.
- the tape 7 is automatically pulled out of the container 25 and is guided in its travel by the inner surface of the cylindrical wall 29. Because the container 25 contains only a single width of tape 7 the direction of feed of the tape 7 remains virtually constant. Also, the tensional force required to draw tape from the container is low because only the coiled tape is rotated during tape discharge. Frictional contact between the tape and the inner surface of the cylindrical wall 29 ensures that a consistent back tension is exerted on the rivet tape so increasing the reliability of the tape indexing mechanism in the riveting head 3.
- the container 25 enables a relatively large number of rivets to be accommodated in close proximity to the feed tube 8 and the length of tape remaining can readily be viewed by the operator through the clear front wall of the container 25.
- connection of the holder 15 to the feed tube 8 may permit pivotal movement of the holder 15 relative to the tube 8 without the need to first slacken and then re-tighten the fastener 19.
- Used tape may be cut off at the riveting head, for example simultaneously with each riveting operation, and in this case the discharge tube may be omitted.
- the holder for the tape container may hold two or more containers, one of which is in use and the other or others of which are available for subsequent use.
- the description has been concerned with a portable riveting machine and a rivet supply therefor, the invention may be applied to other (preferably headed) fasteners and machines for applying such fasteners.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Insertion Pins And Rivets (AREA)
- Portable Nailing Machines And Staplers (AREA)
- Automatic Assembly (AREA)
- Dovetailed Work, And Nailing Machines And Stapling Machines For Wood (AREA)
Abstract
Description
- This invention relates to a portable riveting machine and a rivet supply therefor.
- Traditional riveting machines are large and difficult to transport but recently riveting machines have become available that are more compact and light in weight. An example of a modern riveting machine of this kind is described in European Patent Specification 0172171 by Nietek Pty. Ltd. and has an elongate body including a hydraulic cylinder mounted on the upper jaw of an interchangeable C-frame. The hydraulic cylinder operates a punch which drives successive rivets from a rivet carrier tape fed to the lower end of the body from a supply. A rivet upsetting die is mounted on the lower jaw of the C-frame beneath the punch.
- The rivet carrier tape carries equally spaced rivets firmly held in a carrier tape of a resiliently flexible material. Tape feed and discharge tubes are mounted at opposite sides of the elongate body. The rivet carrier tape may be supplied from an overhead spool, through the feed tube and into the riveting head at the lower end of the elongate body. After each riveting operation the tape is indexed to advance the next rivet to the discharge position and the used tape is fed through the discharge tube.
- Such continuous spool feed is disadvantageous in that portability is limited by the need to maintain a short distance between the spool and the upper end of the feed tube so as to prevent snagging and consequent misfeeding of the tape. It has been proposed to overcome this difficulty by replacing the feed and discharge guide tubes by an inverted U-tube holding a strip of rivets cut from a spool. Although the provision of a U-tube provides complete portability it has attendant disadvantages in that it increases the overall length of the riveting machine thereby preventing access into certain components, the weight of the machine is increased, the operator's view may be obstructed, the number of rivets remaining in the U-tube is not visible, and the U-tube holds relatively few rivets and therefore requires frequent reloading from a nearby spool which may become soiled.
- It is an object of the present invention to obviate or mitigate the aforesaid disadvantages.
- According to a first aspect of the present invention there is provided a portable riveting machine comprising a punch adapted to drive successive rivets from a rivet carrier tape fed thereto from a supply coil, characterised in that the supply coil is a single width of tape spirally wound about a central void within a container having an internal peripheral surface which is in contact over substantially its full length with the outermost layer of the tape to exert a consistent back tension on the tape and guide it during discharge.
- Preferably, the container is at least partially transparent to permit observation of the supply coil remaining therein.
- According to a second aspect of the present invention there is provided a supply of rivet carrier tape for use in a portable riveting machine, wherein a single width of tape is spirally wound about a central void within a container having an internal peripheral surface which is in contact over substantially its full length with the outermost layer of the tape to exert a consistent back tension on the tape and guide it during discharge.
- The invention will now be further described by way of example only with reference to the accompanying drawings, in which:-
- Fig. 1 is a front elevation of one embodiment of portable riveting machine in accordance with the invention;
- Fig. 2 is a corresponding side view, and
- Fig. 3 is a side view to an enlarged scale of a rivet carrier tape container and the machine holder into which it fits in use.
- Referring now to the drawings, a portable riveting machine has an elongate body 1 including a
hydraulic cylinder 2 and a rivetinghead 3. The body 1 is mounted on the upper jaw of a C-frame 4 by means of alocking frame 5 such that the rivetinghead 3 is positioned above arivet upsetting die 6 mounted on the lower jaw of the C-frame 4. Arivet tape 7 is indexed through the rivetinghead 3 from afeed tube 8. Therivet tape 7 comprises a row of equallyspaced rivets 9 held in aflexible carrier tape 10. Following ejection of therivet 9 by the rivetinghead 3 the usedcarrier tape 10 is fed into adischarge tube 11. Therivets 9 are ejected from thetape 10 in the rivetinghead 3 by a punch (not shown) operated by thehydraulic cylinder 2. The force of the punch is sufficient to drive therivets 9 at least partially through components to be joined and against theupsetting die 6. - As so far described, the construction and operation of the riveting machine is well known, for example from the European Patent cited above to which attention is directed for more detailed information. By contrast with the known riveting machine, the tape feed and
discharge tubes horizontal clamping bars lockable frame 5. Arivet supply 14 is held in aholder 15 mounted on the upper end of thefeed tube 8 by means of abracket 16 connected to aclamp 17. As seen in the inset to Fig. 1, theclamp 17 is in the form of a split sleeve with ahinge 18 at one side and a hand-tightenable fastener 19 at the opposite side. Theclamp 17 may readily be slackened to permit pivotal movement of theholder 15 from the position shown in Fig. 1 to the positions at right angles thereto referenced 15' and 15'' in Fig. 2 or any intermediate position as required. Additionally, if the machine body 1 is turned about its longitudinal axis through 180° relative to the C-frame 4 thereby reversing the feed direction of therivet tape 7, theclamp 17 may be removed from the tube 8 (which now becomes the discharge tube) and attached to the tube 11 (which now becomes the feed tube). - As best seen in Fig. 3, the
holder 15 has generally U-shaped front andrear walls side walls 22 and afloor 23 so as to provide a receiving pocket for therivet supply 14. Thefloor 23 has a flared opening 24 (see also the inset to Fig. 1) registering with thetube 8. - The
rivet supply 14 comprises acontainer 25 made from asquare sheet 26 of stiff card material adhesively connected to a correspondinglyshaped sheet 27 which is vacuum formed in clear synthetic plastics material to provide anannular cavity 28 defined by a generally cylindricalouter wall 29 and acentral boss 30 of hollow frustoconical shape with a flatinner end wall 31 adhesively connected to thecard sheet 26. The depth of thecontainer 25, i.e. the axial dimension of thecylindrical wall 29, is only slightly greater than the width of therivet tape 7. At a bottom corner of the rivet supply 14 thecontainer wall 29 merges with anoutlet stub 32. A single width ofrivet tape 7 is spirally coiled within thecontainer 25 about the central void orcavity 28. Before use, theleader 35 of therivet tape 7 is attached by a short length ofadhesive tape 33 to abung 34 inserted into theoutlet stub 32. When thebung 34 is removed to open thecontainer 25 theleader 35 of therivet tape 7 is pulled out of thecontainer 25 so that it can be easily grasped by hand. At this stage thebung 34 and theadhesive tape 33 may be removed. - The
rivet tape 7 is a parallel-sided strip of flexible synthetic plastics material with a central row of undersize holes in which are inserted therivets 9 save at theleader 35 where the rivets are absent in order to permit thetape 7 to be threaded into the rivetinghead 3 at the start of the riveting operation. Therivets 9 are directed inwardly within thecontainer 25. The coils oftape 7 are wound inwardly from the inner surface of thecylindrical wall 29 so as to leave thevoid 28 around thecentral boss 30. The coiledtape 7 is positioned within thecontainer 25 before theplastics sheet 27 is closed by thecard sheet 26 under the application of heat and pressure. - The
rivet supply 14 is a snug fit in theholder 15 the internal width of which is only slightly larger than the overall thickness of therivet supply 14. Before insertion into theholder 15 therivet supply 14 is opened as described above, theadhesive tapes 33 andbung 34 are discarded and the exposedleader 35 is fed through the opening 24 and thefeed tube 8 and threaded into the rivetinghead 3. As therivet supply 14 is lowered into the pocket provided by theholder 15 theoutlet stub 32 of thecontainer 25 is received in the flaredopening 24 immediately above thetube 8. - During normal operation of the riveting machine the
tape 7 is automatically pulled out of thecontainer 25 and is guided in its travel by the inner surface of thecylindrical wall 29. Because thecontainer 25 contains only a single width oftape 7 the direction of feed of thetape 7 remains virtually constant. Also, the tensional force required to draw tape from the container is low because only the coiled tape is rotated during tape discharge. Frictional contact between the tape and the inner surface of thecylindrical wall 29 ensures that a consistent back tension is exerted on the rivet tape so increasing the reliability of the tape indexing mechanism in the rivetinghead 3. Thecontainer 25 enables a relatively large number of rivets to be accommodated in close proximity to thefeed tube 8 and the length of tape remaining can readily be viewed by the operator through the clear front wall of thecontainer 25. - It will be appreciated that modifications and improvements may be made without departing from the scope of the appended claims. For example, the connection of the
holder 15 to thefeed tube 8 may permit pivotal movement of theholder 15 relative to thetube 8 without the need to first slacken and then re-tighten thefastener 19. - Used tape may be cut off at the riveting head, for example simultaneously with each riveting operation, and in this case the discharge tube may be omitted.
- The holder for the tape container may hold two or more containers, one of which is in use and the other or others of which are available for subsequent use.
- Although the description has been concerned with a portable riveting machine and a rivet supply therefor, the invention may be applied to other (preferably headed) fasteners and machines for applying such fasteners.
Claims (8)
- A portable riveting machine comprising a punch adapted to drive successive rivets from a rivet carrier tape (10) fed thereto from a supply coil, characterised in that the supply coil is a single width of tape (10) spirally wound about a central void (28) within a container (25) having an internal peripheral surface (29) which is in contact over substantially its full length with the outermost layer of the tape (10) to exert a consistent back tension on the tape (10) and guide it during discharge.
- A machine as claimed in claim 1, wherein the container (25) is at least partially transparent to permit observation of the supply coil remaining therein.
- A machine as claimed in claim 1 or 2 wherein the container (25) is located in a holder (15) pivotally mounted on the machine.
- A supply of rivet carrier tape (10) for use in a portable riveting machine, characterised in that a single width of tape (10) is spirally wound about a central void (28) within a container (25) having an internal peripheral surface (29) which is in contact over substantially its full length with the outermost layer of the tape (10) to exert a consistent back tension on the tape (10) and guide it during discharge.
- A supply as claimed in claim 4, wherein the container (25) is at least partially transparent to permit observation of the supply coil remaining therein.
- A supply as claimed in claim 4 or 5, wherein said peripheral surface (29) is partly cylindrical.
- A supply as claimed in claim 6, wherein the container (25) has an outlet (32) including a rectilinear tangential extension of said cylindrical surface (29).
- A supply as claimed in claim 7, wherein the outlet (32) is closed by a removable closure to which the leading end of the tape (10) is connected for withdrawal from the container (25) when the closure is removed.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB91149534 | 1991-07-11 | ||
GB919114953A GB9114953D0 (en) | 1991-07-11 | 1991-07-11 | A portable riveting machine and a rivet supply therefor |
PCT/GB1992/001272 WO1993001014A1 (en) | 1991-07-11 | 1992-07-13 | A portable riveting machine and a rivet supply therefor |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0593626A1 EP0593626A1 (en) | 1994-04-27 |
EP0593626B1 true EP0593626B1 (en) | 1996-02-07 |
Family
ID=10698175
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP92915232A Expired - Lifetime EP0593626B1 (en) | 1991-07-11 | 1992-07-13 | A portable riveting machine and a rivet supply therefor |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0593626B1 (en) |
JP (1) | JP3455216B2 (en) |
AU (1) | AU659481B2 (en) |
DE (1) | DE69208255T2 (en) |
GB (2) | GB9114953D0 (en) |
WO (1) | WO1993001014A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10003492B4 (en) * | 2000-01-27 | 2006-11-23 | Bayerische Motoren Werke Ag | Magazine for a rivet carrier tape |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8006362B2 (en) | 2007-04-06 | 2011-08-30 | The Boeing Company | Method and apparatus for installing fasteners |
EP2953772B1 (en) * | 2013-02-05 | 2018-09-26 | Comau LLC | Continuous fastener feeding apparatus and method |
ES2753441T3 (en) | 2015-01-16 | 2020-04-08 | Comau Spa | Riveting apparatus |
US10758966B2 (en) | 2018-02-21 | 2020-09-01 | Newfrey Llc | Processor-controlled tape feed apparatus and method for a self-piercing rivet machine |
US10780489B2 (en) | 2018-02-21 | 2020-09-22 | Newfrey Llc | Tool-free opening tape feed receiver for a self-piercing rivet machine |
US10456826B2 (en) | 2018-02-21 | 2019-10-29 | Newfrey Llc | Tape feed apparatus and method for a self-piercing rivet machine |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4014488A (en) * | 1973-11-05 | 1977-03-29 | Duo-Fast Corporation | Fastener feed apparatus and method |
DE2737602A1 (en) * | 1977-08-20 | 1979-03-01 | Raymond A Fa | FIXING A BUFFER BAR ON A SUPPORT WALL |
IL71907A (en) * | 1983-05-27 | 1986-11-30 | Nietek Pty Ltd | Feeders for headed fasteners and riveting machine including it |
-
1991
- 1991-07-11 GB GB919114953A patent/GB9114953D0/en active Pending
-
1992
- 1992-07-13 JP JP50212193A patent/JP3455216B2/en not_active Expired - Lifetime
- 1992-07-13 GB GB9400270A patent/GB2273071B/en not_active Expired - Lifetime
- 1992-07-13 WO PCT/GB1992/001272 patent/WO1993001014A1/en active IP Right Grant
- 1992-07-13 AU AU22795/92A patent/AU659481B2/en not_active Expired
- 1992-07-13 EP EP92915232A patent/EP0593626B1/en not_active Expired - Lifetime
- 1992-07-13 DE DE69208255T patent/DE69208255T2/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10003492B4 (en) * | 2000-01-27 | 2006-11-23 | Bayerische Motoren Werke Ag | Magazine for a rivet carrier tape |
Also Published As
Publication number | Publication date |
---|---|
WO1993001014A1 (en) | 1993-01-21 |
AU659481B2 (en) | 1995-05-18 |
DE69208255D1 (en) | 1996-03-21 |
GB2273071A (en) | 1994-06-08 |
DE69208255T2 (en) | 1996-07-25 |
GB9400270D0 (en) | 1994-03-16 |
EP0593626A1 (en) | 1994-04-27 |
AU2279592A (en) | 1993-02-11 |
GB2273071B (en) | 1995-05-03 |
GB9114953D0 (en) | 1991-08-28 |
JPH06508795A (en) | 1994-10-06 |
JP3455216B2 (en) | 2003-10-14 |
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