EP0036210B1 - Nietzange - Google Patents

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Publication number
EP0036210B1
EP0036210B1 EP81101957A EP81101957A EP0036210B1 EP 0036210 B1 EP0036210 B1 EP 0036210B1 EP 81101957 A EP81101957 A EP 81101957A EP 81101957 A EP81101957 A EP 81101957A EP 0036210 B1 EP0036210 B1 EP 0036210B1
Authority
EP
European Patent Office
Prior art keywords
lever
support member
main body
frame main
pivot
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
EP81101957A
Other languages
English (en)
French (fr)
Other versions
EP0036210A1 (de
Inventor
Kiyoshi Mitani
Tadashi Inoue
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.)
MITANI, KIYOSHI
Lobster Tool Co Ltd
Original Assignee
Mitani Kiyoshi
Lobster Tool Co 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
Priority claimed from JP1980036032U external-priority patent/JPS5736347Y2/ja
Priority claimed from JP4322580U external-priority patent/JPS5736348Y2/ja
Priority claimed from JP4458880U external-priority patent/JPS5736349Y2/ja
Priority claimed from JP1980101632U external-priority patent/JPS5736350Y2/ja
Application filed by Mitani Kiyoshi, Lobster Tool Co Ltd filed Critical Mitani Kiyoshi
Publication of EP0036210A1 publication Critical patent/EP0036210A1/de
Application granted granted Critical
Publication of EP0036210B1 publication Critical patent/EP0036210B1/de
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
    • B21J15/38—Accessories for use in connection with riveting, e.g. pliers for upsetting; Hand tools for riveting
    • B21J15/386—Pliers for riveting
    • 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

Definitions

  • the present invention relates to a riveter comprising a lever pivoted to a frame main body and reciprocally turnable relative to the frame to reciprocate a jaw case.
  • Conventional riveters comprise a frame main body, a lever pivoted to the main body, a jaw case housing a jaw assembly and pivoted to the forward end of the lever, and a jaw case housing having the jaw case fitted therein and attached, either in a forward position or in a downward position, to the forward end of the frame main body.
  • the lever when turned, reciprocates the jaw case within the housing for setting rivets.
  • Such riveters are disclosed in U.S. Patents No. 3,280,615 and No. 3,328,985, and Japanese Patent Publication No. 30166/1973.
  • the jaw assembly is fixedly directed either forward or downward, so that when the forward-type riveter is not usable for the work to be riveted owing to its shape or other conditions involved, the downward-type riveter is used. Since one of the different types of riveters must be employed alternatively, the conventional riveters have the drawback of being very inefficient to use. Moreover, the two types of riveters need to be prepared at all times, hence uneconomical.
  • a riveter comprising a turnable jaw case actuating support member disposed within a forward end portion of a frame main body and mounted on a pivot for supporting a lever on the frame main body, coupling means capable of locking the actuating support member in a plurality of positions relative to the lever and displaced from each other through a predetermined angle, a jaw case turnably supported by the actuating support member eccentrically of the pivot and reciprocally movable straight by reciprocal turn of the lever through reciprocal turn of the actuating support member connected to the lever, and a jaw case tubular housing turnably supported by the forward end portion of the frame main body and lockable thereto in a plurality of positions angularly spaced from each other by the same angle as said predetermined angle of displacement.
  • the orientation of the jaw case enclosing a jaw assembly is easily changeable as desired in accordance with the shape of the work to be riveted or with other conditions involved. Rivets can therefore be set in place with a greatly improved efficiency using only one riveter for any work irrespective of its shape.
  • the illustrated hand riveter has a frame main body 101 including a handle portion 102 at its rear end and a head frame 105 at its forward end.
  • the head frame 105 is in the form of a case having a small width and opened on the front and under sides.
  • the head frame has one side wall formed with an upper threaded bore 107 and a lower threaded bore 106 at the front end for positioning the jaw case tubular housing to be described later.
  • a lever 120 is supported by a pivot 121 on the frame main body 101.
  • the pivot 121 extends through holes 108, 108 formed in the opposite side walls of the head frame 105 and through holes 122, 122 formed in the forward end of the lever 120.
  • the lever 120 is biased upward by a spring 123 at all times and has a handle portion 124 at its rear end.
  • the lever 120 has a slot 125 extending longitudinally thereof and formed in an upper wall front end portion thereof.
  • a bolt 141 inserted through the slot 125 is screwed in a threaded bore 143 in an engaging pawl 142, whereby the engaging pawl 142 is attached to the lever 120 movably longitudinally of the lever.
  • An actuating support member 140 for a jaw assembly is disposed within the head frame 105 and turnably mounted on the pivot 121 for supporting the lever 120 on the frame main body 101.
  • the actuating support member 140 comprises a pair of turnable disks 144, 144 connected together by a bar 145 as opposed to each other and spaced apart by a predetermined distance.
  • Each of the disks 144 is formed in its peripheral edge with two cutouts 146, 147 angularly spaced apart from each other by about 90°.
  • the cutouts 146, 147 of one of the disks 144 are in register with the corresponding cutouts 146, 147 of the other disk 144.
  • a support pin 148 extends between and is supported by the disks 144, 144 which are disposed within the head frame 105 and turnably mounted on the pivot 121 as already described.
  • the support pin 148 is positioned on one side of the disk 144 opposite to the center of the cutout 146 (preferably as displaced from the cutout 146 angularly through about 180°).
  • a jaw case 160 is pivotably supported by the pin 148.
  • the pin 148 has a groove 149 in one end.
  • the jaw case 160 houses jaws 161, a jaw pusher 162, a jaw pusher pressing spring 163, and a spring seat 164 which is fitted in a recess 151 formed in the pin 148.
  • a tubular housing 170 for inserting the jaw case 160 therein has bifurcated attaching pieces 171, 171 upwardly extending from its upper end.
  • the head frame 105 is disposed between the attaching pieces 171, 171.
  • a slot 172 extending axially of the housing 170 is formed in the upper end of each attaching piece 171.
  • a retaining ring 173 is engaged with each end of the pivot 121 extending through the slot 172 and turnably. supporting the tubular housing 170 on the head frame 105 of the frame main body 101.
  • the jaw case 160 is fitted in the housing 170, which has a nose piece 174 screwed in its lower end. Interchangeable nose pieces 175 of different sizes are screwed in the under wall of the frame main body 101.
  • the jaw assembly is set in its downward position shown in Fig. 4 in the following manner.
  • the bolt 141 is loosened, and the engaging pawl 142 is slidingly advanced to engage its front end in the cutouts 146 of the disks 144.
  • the pawl 142 is then fastened to the lever 120 by tightening up the bolt 141.
  • the housing 170 having the jaw case 160 therein is retained in a vertical position and then fastened to the head frame 105 by screwing a bolt 176 in the threaded bore 106 of the frame.
  • the riveter is used for riveting in the following manner.
  • the mandrel M of a blind rivet L is inserted through a sleeve S, then inserted through the nose piece 174 and gripped at its forward end by the jaws 161 in the jaw case 160 as seen in Fig. 8.
  • the lever 120 is held away from the frame main body 101 by the force of the spring 123.
  • the handle portions 102, 124 of the frame main body 101 and the lever 120 are gripped by hand to turn the lever 120 toward the frame main body 101 as shown in Fig. 9.
  • the member 140 rotates about the pivot 121 with the turn of the lever 120.
  • the rotation of the member 140 to which the jaw case 160 is pivoted by the pin 148 pulls the jaw case 160 upward.
  • the turn of the lever 120 pulls up the mandrel M.
  • the nose piece 174 bears against a flange F at the base end of the sleeve S and restrains the sleeve S from moving, the head H of the mandrel M is forced into the sleeve S to deform the sleeve S.
  • the bolt 141 is loosened first, the engaging pawl 142 is then retracted to release the actuating support member 140 from the lever 120, and the bolt 176 is loosened to release the tubular housing 170.
  • the housing 170 is pulled down along the slots 172 to the broken-line position shown in Fig. 11, then turned forward and thereafter horizontally retracted along the slots 172 to the solid-line position in Fig. 11.
  • the housing 170 is fixed to the head frame 105 again by screwing the bolt 176 in the other threaded bore 107.
  • the jaw case 160 housed therein is also turned as seen in Fig.
  • the contact portions therefore serving as support points for causing the jaw assembly actuating support member 140 to rotate about the pivot 121 with the turn of the housing 170.
  • the engaging pawl 142 is slidingly moved forward into engagement with the other cutout portions 147, 147 of the disks 144, 144.
  • the bolt 141 is tightened up to couple the lever 120 to the actuating support member 140.
  • the jaw case 160 and the lever 120 can be so dimensioned that the upper side portions 165 of the former will not contact the front end portions 126 of the latter when the housing 170 is turned.
  • the actuating support member 140 may be made rotatable by suitable means.
  • the jaw assembly of the riveter is easily shiftable from forward position to downward position, and vice versa.
  • the engaging pawl 142 on the lever 120 can be made movable forward or backward with use of a spring.
  • a frame main body 201 includes at its front end a head frame 205 opened at the upper, lower and front sides thereof and having opposite side walls 203, 204.
  • the side walls opposed to each other are formed with holes 208, 208 for inserting the pivot 221 to be described later, and with circular arc apertures 209, 209 centered about the holes 208, 208 for removably accommodating the locking pin 250 to be described later.
  • One side wall 203 is provided at its forward end with an upper threaded bore 207 and a lower threaded bore 206 and also with a hole 210 for inserting a pin 248 for pivotably supporting the jaw case to be described later.
  • the other side wall 204 has a hole 211 opposed to the hole 210.
  • a lever 220 has a bifurcated side walls 227, 227 at its head portion formed by removing the upper, lower and front walls of the head portion.
  • the side walls 227 are formed with holes 222, 222 opposed to each other for inserting the pivot 221 and with slots 228, 228 for turning the jaw case actuating support member 240 to be described later.
  • the slots 228 are positioned on the same circumference as the hole 210 of the frame main body 201 to communicate with the hole 210, the circumference being centered about the pivot 221.
  • the walls 227 also have holes 229, 229 for passing the locking pin 250 which are positioned on the same circumference, centered about the pivot 221, as the apertures 209 in the frame main body 201 to communicate with the apertures 209.
  • the actuating support member 240 for the jaw assembly comprises a pair of side disks 244, 244 opposed to each other at the desired spacing and partly connected together by a plate 245.
  • the side disks 244, 244 are formed with holes 253, 253 for inserting the pivot 221 and also with holes 254, 254 for inserting the support pin 248 for the jaw case.
  • the holes 254 are positioned on the same circumference, centered about the pivot 221, as the hole 210 of the frame main body 201 and the slots 228 of the lever 220 to communicate with the hole 210 and the slots 228.
  • Each of the disks 244 has two holes 255 and 256 angularly displaced from each other through 90° for passing the locking pin 250.
  • These holes 255 and 256 are arranged on the same circumference, centered about the pivot 221, as the aperture 209 of the main body 201 and the hole 229 of the lever 220 to communicate with the aperture 209 and the hole 229.
  • the disks 244, 244 have knob portions 257, 257 for turning the actuating support member 240.
  • the jaw case 260 has accommodated therein a jaw assembly comprising jaws 261, a jaw pusher 262, a jaw pusher pressing spring 263 and a spring seat 264.
  • the support pin 248 is inserted through an upper portion of the case 260 and has a recess 251 in which the spring seat 264 is press-fitted, whereby the jaw assembly is held in position.
  • a tubular housing 270 for the jaw case has bifurcated opposite attaching pieces 271, 271 extending from its base end.
  • the pieces 271 have at their upper ends slots 272, 272 extending axially of the housing 270.
  • a hole 277 is formed in one of the attaching piece 272 at a front lower portion thereof.
  • a nose piece 274 is attached to the forward end of the housing 270.
  • Interchangeable nose pieces 275a, 275b and 275c have bores of different sizes.
  • Indicated at 278 is a tool for mounting or demounting the nose pieces, pins, bolts and nuts, and at 223 is a spring for returning the lever.
  • the actuating support member 240 is placed between the bifurcated side walls 227, 227 of the lever 220, and a short tube 258 is inserted through the holes 222, 222 and 253, 253, whereby the support member 240 is turnably attached to the head of the lever.
  • the jaw case 260 is pivoted to the support member 240 by inserting the pin 248 through the holes 254, 254 of the member 240. Since the project-ends of the pin 248 are engaged in the slots 228, 228 of the lever 220 at this time, the pin 248 is turnable with the actuating support member 240 within the range defined by the slots 228.
  • the lever 220 having the jaw case 260 and the jaw assembly actuating support member 240 thus incorporated therein is placed at its head portion between the side walls 203, 204 of the head frame 205 of the main body 201, and the pivot 221 in the form of a bolt is inserted through the holes 208, 208 of the side walls and through the short tube 258, whereby the lever 220 is turnably attached to the frame main body 201.
  • the actuating support member 240 is then suitably turned to bring either pair of holes 255, 256, for example the holes 256, into communication with the apertures 209 of the frame main body 201 and with the holes 229 of the lever 220, and the locking pin 250 is inserted through these openings, whereby the actuating support member 240 is locked in position relative to the lever 220.
  • the support pin 248 for the jaw case 260 is positioned at one end of each of the slots 228 (i.e. at the left end of the slot 228 in Fig. 19) of the lever 220 to hold the jaw case 260 in a vertical position.
  • the jaw case housing 270 is turnable from the vertical position to a horizontal position in the manner to be described below.
  • the bolt 276 is removed from the bore 206 of the frame main body 201 and the hole 277 of the housing attaching piece 271, and the housing 270 is pulled down as allowed by the slots 272 in the direction of an arrow in Fig. 22 with the nut 279 loosened to open the apertures 209 of the frame main body 201 which have been covered with the attaching pieces 271, 271.
  • the locking pin 250 is then removed.
  • the actuating support member 240 for the jaw assembly is turned clockwise as shown in Fig.
  • the bolt 276 is passed through the hole 277 of the attaching piece 271 and screwed in the upper threaded bore 207 in the side wall 203 of the frame main body 201. Consequently the housing 270 can be properly set in its horizontal position as shown in Fig. 22.
  • the apertures 209 formed in the frame main body 201 for the locking pin 250 may be circular holes which are dimensioned to permit the insertion of the locking pin 25. Further only one aperture 209 can be provided in either one of the side walls 203 and 204. However, it is desirable that the apertures 209 be in the form of elongated openings to render the pin 250 easily insertable or removable and to make the lever 220 smoothly turnable despite the projection of the ends of the locking pin 250.
  • the means for coupling the lever to the actuating support member for a jaw assembly to rotate the member by the turn of the lever comprises an engaging pawl 142 provided on a forward end upper portion of the lever and movable forward and backward, and cutout portions 146, 147 formed in the outer peripheral edge of the actuating support member 140.
  • the coupling means comprises holes 229 formed in the lever 220 at a peripheral portion thereof around its pivot, holes 255 and 256 formed in the actuating support member 240 at peripheral portions thereof around its pivot, and a locking pin 250 insertable in these holes.
  • the coupling means nevertheless is not limited to these arrangements but can be modified variously as will be described below.
  • the actuating support member of the first embodiment may be provided with an engaging pawl which is engageable in cutouts formed in the lever.
  • the actuating support member may be formed with a hole in combination with a plurality of holes formed in the lever for inserting the locking pin through these holes.
  • the invention includes a gear-and-rack arrangement for coupling the lever to the actuating support member, a screwthread arrangement for coupling these members, etc.
  • an actuating support member 340 comprises a pair of side disks 344, 344 interconnected by pins 381.
  • a hook 342 movably mounted on a lever 320 is engageable with either one of the pins 381 to couple the lever 320 to the support member 340.
  • the actuating support member 440 shown in Fig. 25 comprises a pair of side disks 444, 444 connected together by a plate 445 which is formed with holes 455 and 456.
  • An engaging bar 442 movably mounted on a lever 420 is engageable in the hole 455 or 456 to couple the lever to the support member 440.
  • the actuating support member 540 comprises a pair of side plates 544, 544 connected together by a plate 545.
  • Each of the side plates 544 has a constricted midportion and resembles a cocoon.
  • the side plate 544 has a hole 553 at the midportion for inserting a pivot therethrough and is formed at one side thereof with two holes 555 and 556 angularly displaced from each other about the hole 553 through 90° for passing a locking pin therethrough.
  • the other side of the plate 544 opposite to the holes 555, 556 serves as a support portion 559 having a circular arc periphery.
  • Parallel cutout portions 565, 565 are formed in an upper portion of the jaw case 560 on the opposite sides thereof.
  • the support portions 559 of the actuating member 540 are engageable with the cutout portions 565, 565 in sliding contact therewith to turnably support the jaw case 560 on the member 540.
  • the jaw assembly is easily shiftable either to a forward position or to a downward position as desired.
  • the riveter therefore has the distinct advantage that rivets can be set in an optimum condition in accordance with the shape of the work to be riveted and with other requirements concerned, thus assuring rivet setting with a greatly improved efficiency without necessitating different kinds of riveters.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Surgical Instruments (AREA)
  • Insertion Pins And Rivets (AREA)

Claims (4)

1. Nietmaschine mit einem Hebel (120, 220, 320, 420), der an einem Hauptrahmenkörper (101, 201) drehbar befestigt und relativ zu dem Rahmen wechselweise drehbar ist, um ein Backengehäuse (160, 260, 560) hin- und herzu-bewegen, wobei die Nietmaschine aufweist: ein drehbares Tragteil (140, 240, 340, 440, 540) zum Betätigen des Backengehäuses, das in einem vorderen Endabschnitt des Hauptrahmenkörpers (101, 201) angeordnet und auf einen Zapfen (121, 221) montiert ist, um den Hebel (120, 220, 320, 420) an dem Hauptrahmenkörper (101, 201) zu lagern, eine Verbindungseinrichtung (142, 146, 147; 250, 255, 256; 242, 381; 442, 455, 456), die geeignet ist, um das Betätigungstragteil (140, 240, 340, 440, 540) in einer Anzahl von einander durch einen vorgegebenen Winkel getrennten Positionen relativ zu dem Hebel (120, 220, 320, 420) zu verriegeln, wobei das Backengehäuse (160, 260, 560) durch das Betätigungstragteil (140, 240, 340, 440, 540) exzentrisch zu dem Zapfen drehbar gehalten und geradlining hin-und herbeweglich ist, indem der Hebel (120, 220, 320, 420) mittels wechselweisen Drehens des damit verbundenen Betätigungstragteils (140, 240, 340, 440, 540) hin- und hergedreht wird, und ein röhrenförmiges Gehäuse (170, 270) für das Backengehäuse, das in einem vorderen Endabschnitt des Hauptrahmenkörpers (101, 201) drehbar gelagert ist und in einer Anzahl von Winkelstellungen verriegelbar ist, die voneinander durch den gleichen, vorgegebenen Abstandswinkel getrennt sind.
2. Nietmaschine nach Anspruch 1, wobei die Verbindungseinrichtung eine Einrückklaue (142) aufweist, die in einem oberen, vorderen Endabschnitt des Hebels (120) vorgesehen ist und vorwärts und rückwärts beweglich ist, und eine Anzahl von Aussparungen (146, 147) aufweist, die in der äußeren Umfangskante des Betätigungstragteils (140) gebildet und voneinander um einen Winkel getrennt angeordnet sind.
3. Nietmaschine nach Anspruch 1, wobei die Verbindungseinrichtung Löcher (229) aufweist, die in dem Hebel (220) an einem peripheren Teil davon um die Drehachse angeordnet sind, wobei um den Zapfen in peripheren Abschnitten des Betätigungstragteils (240) eine Anzahl von Löchern (255, 256) gebildet und voneinander durch einen Winkel (0) getrennt sind, und die einen Stift (250) aufweist, der in diese Löcher einsetzbar ist.
4. Nietmaschine nach einem der Ansprüche 1 bis 3, wobei der vorgegebene Winkel 90° geträgt, und wobei das Backengehäuse (160, 260) in jeder abwärtigen Position und Vorwärts-Position relativ zu dem Hauptrahmenkörper (101, 201) verriegelbar ist.
EP81101957A 1980-03-19 1981-03-16 Nietzange Expired EP0036210B1 (de)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP36032/80 1980-03-19
JP1980036032U JPS5736347Y2 (de) 1980-03-19 1980-03-19
JP4322580U JPS5736348Y2 (de) 1980-03-31 1980-03-31
JP4458880U JPS5736349Y2 (de) 1980-04-01 1980-04-01
JP101632/80 1980-07-17
JP1980101632U JPS5736350Y2 (de) 1980-07-17 1980-07-17

Publications (2)

Publication Number Publication Date
EP0036210A1 EP0036210A1 (de) 1981-09-23
EP0036210B1 true EP0036210B1 (de) 1983-11-16

Family

ID=27460191

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81101957A Expired EP0036210B1 (de) 1980-03-19 1981-03-16 Nietzange

Country Status (2)

Country Link
EP (1) EP0036210B1 (de)
ES (1) ES8204627A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2058221T3 (es) * 1988-11-29 1994-11-01 Yang Tein Liu Remachador ajustable.
CN102476158B (zh) * 2010-11-20 2014-12-10 余姚唐文工具有限公司 单把式拉铆枪

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE711057C (de) * 1937-01-21 1941-09-25 Siebel Flugzeugwerke G M B H Nietwerkzeug zur Herstellung von Hohlnietverbindungen
US3280615A (en) * 1964-05-25 1966-10-25 Richline Co Inc Rivet gun
US3328985A (en) * 1964-07-15 1967-07-04 Malco Products Inc Rivet gun device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD130757A1 (de) * 1977-03-30 1978-05-03 Peter Marr Blindnietzange mit gelenkig angeordnetem kopf

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE711057C (de) * 1937-01-21 1941-09-25 Siebel Flugzeugwerke G M B H Nietwerkzeug zur Herstellung von Hohlnietverbindungen
US3280615A (en) * 1964-05-25 1966-10-25 Richline Co Inc Rivet gun
US3328985A (en) * 1964-07-15 1967-07-04 Malco Products Inc Rivet gun device

Also Published As

Publication number Publication date
EP0036210A1 (de) 1981-09-23
ES500529A0 (es) 1982-05-16
ES8204627A1 (es) 1982-05-16

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