US2445026A - Rivet inserting tool - Google Patents

Description

l.. FRANK RIVET INSERTING TOOL July 13, 194s.

2 Sheets-Sheet 1 Filed May 15, 1945 July 13, 1948. L. FRANK l 2,445,026

RIVET INSERTING TOOL 2 sheets-sheet 2' Patented July 13, `--1948 PATENT 2,445,026 RNErINsER'rrNGlrooL if Louisirrakmeuws; Calif.'

@Application May' .215, 1945,==ser.i"a1 No. lsse-,833 .sciame (Grimm) K i" My invention relates Vvtofa rivet setting `toolfand hasforitsfprincipalobject theprovisions of a. relaytively"sirnple, practical V'and inexpensivemanually operabletool for insertingv rivets in holes which varefdrilledfor`punched inparts which are torbe united by rivets and which tool, lwithxslight fclfia1`tiges,-fniayy beemployed for the 'feeding and :inserting-of 4Salewa-short nails, tacks andthe like.

1A further object of my'inventionisto provide a l'rivetfinserting Stooi'which embodies: an elongated tube'whicliserves as aholder for aseries of rivetsor the like,"and one end of said tube being {provided-with means for controlling the discharge Avgof"-rivetsffrom :the end ofl the tube and another "formfof "the tool comprisingv an 4elongated tubular holder with a separately formed rivet discharging headf which is "removablypositioned' on one Send of the tubular holder, ithus making it possible to `utilize different :holders with tliev rivet discharg- *ingiheact further object vof -my invention is to .provide k:a rivetf'nsertingtoolof the character referred to lwith lflexible means adapted to pass: around' the wrist ofthen user of the tool', thus enabling'said t'ooito be conveniently employed vfor lthe rapid insertion of rivets or the like into their-holes.

" With` Vthe foregoing and other `objects in View,

4Hflig. lisa-perspective view of a rivet "inserting l"tool `heldin fand onthe users'hand as the saine appearswliile setting rivets in a row of holes.

Fig.: 2 lis av fse'ction taken lengthwise through "the :center of; the tool.

the' direction Vindicated bythe Aarrow" 4in Fig.- 3.

Fig.` 51-is asectionalv elevational view taken'V on the line V5`5 'offFig 3.

|`v`Fig.l 6 is a sectional'vi'ew partly in elevation'and 'showing amodied form vof the rivet discharging means.

Fig.7 is van 'e1evationalview of'a further modi- Hdform 'off' the lrivet discharging means.

Fig. 8 is an elevational 'View taken lookingf'in thedir'ectionindicated by the arrow 8 1in Fig. 7.

l F-igi'lOis a'perspectiveviewpf a portion of ,the form of rivet dischargeheadA4 seen in `ligs. 7fand8.

- lFigf. v 11.' is' anelevationalfview, paz'ctlyzinfsection;l

ving; I 2.

,r2 andshoWing-afurther modied form; ofthe rivet -discharging means.

^Fig.f12;is :anf elevationalv viewfpartly infsection, of a further modified form fof rivet @discharge h'ead. l f AFig. l3-is a longitudinal' section'taken through the center. of -a further modified form.

VReferringv fby` :numerals tov the accompanying drawings; and, I particularly tothe yforrnqor rivet inserter illustrated "in Figs. 1-. to 5 inclusive,v I0 designates a tube'whieh may --be dany-desired and convenient length, for'instance, from twelve Ito twenty Linches or-more, the yupper end of which plug -is closed by a removablepl11g1or\cap IIa-and lformed through the ywall of lsaid tube adjacent -its upper. end is arr-opening -I 2v surroundedv by-acup l3zopened .at its .upper end, thus permittingrivets, screws orV the like to. -be loaded into i the tube.

Arranged for sliding movement irratubey I0 ,-is

-a plunger Ikprovided withopposit'elyfarranged studs I5v 'which' project througl'i-longitutlinallyv disposed-'slotsfIB lformed in said tube and arranged between vsaid plunger and the'xplug IIvis an expansive llcoil-'spring I 1V which as it :expandszforces plunger 44downwardly'vthrough? the tube. At

ythe upper end `of the vslots I6 areformed-notches ia'which receive the studse :I5 when'` the rsarne is -moved to itsupperglimi-t of'movement, andwhen the plunger is-so positioned,` rivetsl orithelike, .may be'deliveredin-to the tubethroughtheiopen- The lower tend ofthe tube :I iislpartially :closed by an arcuate flange I9, the openingl inzwhich is approximately sernicircnrlarv inxshape andswhich is concentric with 'the axis vof theftubeg: such constems S of the Arivets'when the heads thereof @are resting. onltop 'of the -rfiange .I9 (see Figs.

I porting flange 1I9fis"an'opening 2 i .through which -'the-heads uf'y the vrvetsapass as? the vend of the l'tool Securedon the lower portion of theztube' IIJf-just vsitely arrangedvearsl v23- and pivoted--to these ears are arms 24 provided on their lower endsrwith-ingers Zliwhich-passthroughwopenings 26 formed -openingfZ Il therein. 'Ehe Linnere-endsy of these fingers 25j are pointed fory engagement ,With the lower'V- endsfofthe: rivets that are. handled byj the through-the wallwofgtube yIIIA tothe sides loffthe toolg.. anclf-th'e.-underfacesv offsaid. -fingers are/.con-

smvexlyqcurved Ator-f.engagement with .the uppen surarms 24 and the tube il] are expansive coil springs 21 which normally maintain said arms in position with the fingers 25 projecting through the. apertures 26 so as to engage the two lowermost rivets as illustrated in Figs. 2 and 6.

Detachably secured to an eye 28 which pro#l jects from collar 25 is a hook 29 and connected to said hook is a strap 30 which is adapted to pass around the wrist of the users hand as illustrated in Fig. 1,thus enabling the tool to be carried upon the users arm while rivets are being inserted in' their holes or while the tube is being loaded with afresh supply of rivets.

In the use of my improved rivet inserting tool, the lower portion of the tube l is held by the fingers and thumb in a mannersimilar to the holding of a pen or pencil, and thus the thumb and index finger are in position to exert inward pressure on the upper ends of the arm 24.

`During rivet inserting operations, the shank of the lowermost rivet projects through opening 2i] from the lower end of the tool with the head of said rivet resting upon flange I9 with the convex under faces oi the iingers 25 resting on the upper surface of the rivet head and with the ends of said fingers positionedbeneath the lower end of the shank of the next adjacent rivet as illustrated in Fig. 2.

The shank `of the lowermost rivet is now inserted in the aperture in the work and the upper ends of the arms 24 are now pressed inwardly and at the same time, the lower end of the tool is drawn toward the operator or in the direction indicated by the arrow, on the surface of the lower portion of tube I0 as seen in Fig. 3, which ymovement disengages the tool from the head of the inserted rivet and permits the next adjacent rivet, under pressure of spring I2, to move downwardly through the tool past the withdrawn fingers 25 until the head of said rivet rests on Viiange I9 with the shank projecting through opening 20.

The operations just described may be quickly performed, thus greatly expediting the work incident to the setting or inserting of a large number of rivets, or the like, in their holes.

In the construction illustrated `in Figs. '1 to 10 inclusive, a collar 35 similar to collar 22 is adjustably mounted upon the tube I9 by means of a set screw 36a and this collar carries the pivoted arms 31 which control the discharge Vof rivets from the lower end of the tube. Projecting outwardhT from :collar 35 is a perforated ear 36 for the reception of the hook 23 and projecting downwardly from said collar is an L-shaped bracket 31 in the lower horizontal portion of which is located a notch 38.

The upper end of a spring 39 is secured to collar 35 below the ear 36 and the horizontally dis. posed lower portion 40 of said spring occupies a substantially horizontal position and extends beneath the opened lower end of the rivet feeding tube l0.` Formed in the end of member 40 is a notch :4| and that/portion `of said member sur-r* 4 rounding said notch is positioned directly below the opened end of tube I0 and takes the place of the anges I9 in the structure previously described. Thus, the head of the lowermost one of the rivets discharging from the tube rests on the end of member 40 with the shank of said rivet projecting through notch 4l, as illustrated in Figs. '7, 8 and 9.l

The notched end of the member 40 may be adjusted toward and away from the end of the tube I0 for the accommodation of rivet heads of different shapes and this adjustment is accomplished by a pin 42 which is iixed to and prol jects upwardly from the horizontal lower portion 4U of spring 39 and `which pin passes through notch38 in bracket 31 and the upper end of which 'j pinV isjthreaded for the accommodation of adjusting and lock nuts 43. Spring 39 and member 40 are formed of resilient material and normally the notched end of member 40 tendsto move away from the opened. end of tube l0 as shown by dotted lines in Fig. 7 and bymanipulations of thenuts 43, the end of said member may be drawn upwardly so as to occupyr a position` against or immediately adjacent the lower end of the tube.

In Fig. 1l, I have shown a rivet inserting tool which vincludes a body 44 which functions as a handle, and formed through said handle is a bore 45 for the accommodation of therivet carrying tube 45 very similar to tube I0.. Formedon the forward end of handle is a head41 having a chamber 48 which communicates with the formed end Vof bore 45, and formed in the latter a short distance rearwardly from said chamber is a shoulder 49.

Mounted for rotation in chamber 48r is a disc 5i) having on itsperiphery a notched hook 5|- for engaging beneath the heads of the rivets as they discharge from tube 46, and this rotary member 50 is'actuated by a rachet and pinion arrangement 'between said disc and the straight arm portion of trigger 52 which latter is mounted for operation in and'upon the side of head 41 and said trigger being held at its outermost limit of movement by a coil'spring V53.

In this construction, a collar 54 is secured on the forward end of the rivet carrying tube 46 and secured to said collar and projecting to the adjacent endof the tube are-spring arms 55, the ends of which are provided with inwardly turned hooks 56 which project inwardly over the end of the tube so as to engage the head of the outer one of the rivets contained in said tube and prevent the same from discharging therefrom.`

Under normal conditions, the hooked ends of the spring arms 55 flex away from the end of the rivet tube and after the latter has been loaded with rivets, the hooked ends of the spring arms are moved inwardly to retain the rivets in the tube by means of a ring 51 which is mounted for sliding movement on the end portion of the tube beyond the collar 54 and upon said springarms.

When a tube loaded withrivets and retained therein by the hooked ends 56 of the springs 55V is inserted in the tool, the ring 51 will engage against shoulder 49 and move rearwardly from rivet from its position at the end of the rivet tube around the chamber 48 to a position as shown by dotted lines in Fig. 11 so that it may be inserted in the rivet hole and when trigger 52 is released, the spring 53 will return the disc to its normal position so as to engage the next rivet discharging from the end of the tube.

In Fig. 12, I have illustrated a head which may be Idetachably applied to the discharge ends of rivet tubes and this head comprises a tubular member 58 provided at its outer end with a rivet discharge opening 59 and with rivet supporting flanges 60 similar to the anges I9 previously described, and this head is detachably secured on the end of the rivet tube by means of a conventional bayonet joint 6l. Thus, a few heads 58 provided with differently shaped openings 59 and rivet retaining flanges 60 may be utilized with an indefinite member of rivet containing tubes, such as IB.

In Fig. 13, I have shown a modiiied construction wherein a tube 62 is adapted to contain rivets such as R and which rivets are forced toward the lower or forward end of the tube by a spring pressed plunger 63. 'This plunger is moved toward the discharge end of the tube by an expansive coil spring 64 and is held at its upper limit of movement when the tube is loaded with rivets by means of a stud 65 which engages in a notch 66 at the upper or rear end of a slot 61 through which said stud travels as the rivets are fed from the lower or forward end of the tube.

The lower or forward end of the tube 62 is provided with a flange 68 for supporting the head of the lowermost one of the rivets in the tube, and formed in the tube just above s aid flange is an aperture 69 through which the rivets pass as they discharge from the tube. Rivets are loaded into tube 62, by inserting the rivets, one at a time into the lower end of'said tube, with the rivet heads passing horizontally through aperture 69 and then moving said rivets upwardly within the tube against the yielding resistance of spring 54.

In Figs. 3 and 6, I have shown a construction wherein the collar l22 which carries the arms 25 is mounted for longitudinal adjustment on the lower end of the tube I0, and to accomplish such an adjustment, a screw 22a is seated in the collar I22 and the inner end of said screw is adapted to engage in any one of a series of closely spaced indentations 22h which are formed in the surface of tube.

Thus, the lingers 25 which engage between the two lowermost rivets in the tube may be adjusted longitudinally with respect to sai'd tube for the accommodation of rivets having diierent head shapes.

Thus, it will be seen that I have provided a rivet inserting tool which is simple in construction, inexpensive of manufacture, and very effective in performing the functions for which it is intended. Practically all of the parts of my improved setting tool and particularly the tube, the plunger and the pivoted levers at the forward or lower end of the tube for controlling the discharge of rivets therefrom may be formed of any of the well known plastics now on the market.

It will be understood that minor changes in the size, form and construction of the various parts of my improved rivet inserting tool may be made and substituted for those herein shown and described without departing from the spirit of my invention, the scope of which is set forth in the appended claims.

I claim as my invention:

1. In a tool for inserting rivets, screws and the like, a tube, a spring pressed plunger arranged for sliding movement in said tube, a rivet supporting flange located within the discharge end of said tube and provided with a notch for the accommodation of the Shanks of rivets and the like, there being an opening in the wall of said tube just above the notch in said flange for the discharge of the heads of rivets from said tube, there being openings formed in the tubes to the sides of the first mentioned opening, a ring mounted for longitudinal vadjustment on the lower portion of said tube, spring pressed arms pivoted on said ring and fingers projecting from the 1ower ends of said arms through said last mentioned openings for engaging between the head of the lowermost rivet and the end of the shank of the next adjacent rivet the length of said last mentioned openings being substantially greater than the thickness of said ngers in order to permit the latter to be adjusted to different positions lengthwise of said openings.

2. A tool for inserting rivets and the like as set forth in claim 1 with a wrist engaging strap detachably connected to said ring.

3. A tool for inserting rivets `and the like as set forth in claim 2, ysaid tube being provided near its upper end with a rivet receiving opening and a cup disposed below and to the sides of said opening.

LOUIS FRANK.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,156,434 Raptias Oct. 12, 1915 1,199,653 Bacolini Sept. 26, 1916 1,575,753 Gibson Mar. 9, 1926 1,945,144 Follett Jan. 30, 1934 2,244,595 Amiot June 3, 1941 2,256,382 Dole Sept. 16, 1941 2,286,809 Hutchison June 16, 1942 2,337,506 Tea Dec. 21, 1943 2,366,448 Greene Jan. 2, 1945

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