US3176399A - Tool punch with spring actuated impact means - Google Patents

Description

April 6, 1965 A. J. MARINO ETAL 3,176,399

TOOL PUNCH WITH SPRING ACTUATED IMPACT MEANS Filed Sept S0 u!Illlllllllllllllilllllllllllll( United States Patent C) M' 3,176,399 TL' PUNCH WHTH ySlPRlillG ACTUTED IMPACTMEANS Anthony l. Marino and Anthony M. Heldere, both' of 559 Encinitas Avet, San Biego, Calin, and Adolph Graf' von Soden, 3909 Riviera Drive, San Diego, Calif.

Filed Sept/20,1962, Ser. No. 224,976 2 Claims. (Cl. Sil-367) ybolts or studs, also for driving nails, finish nails in cabinet work Iand dowel pins, removing pins and keys, leather stenciling, riveting and heading or" pins, rivets or the like, the use of said hand tool being accomplished without the useofa conventional hammer.

Acc-ordingly an object of the invention is to provide av hand tool that maybe made an integral part of a stapler, or be made a detachable part thereof, sothat said hand tool may he used in inaccessible places or such positions where the use of a conventional hammer and a tool is impossible.

A further object of the invention is to provide said hand tool with a base having a center punch and a hingedly detachable and interchangeable scale rule, so that a measurern'ent'such as a radius may be easily taken and scribed and'also a center punch may be easily employedand applied.`

Another object of the invention is to provide said hand tool with a suitable tool bit frame whichmay be detachable orbe made an integral partthereof, said tool bit frame having means for supporting a removable cutting tool orbit' in position when said hand tool is in use.

A further object of the invention is to provide a suitable tool bit witha detachable chuck means adapted for regulating'and for controlling the cutting position of said tool bit when same is in use and actuated by the reciprocating mechanism provided in said hand tool.

Another object of the invention is to provide said hand tool with means Which may be reciprocal or a gear driven cam'and operableby a suitable electrical motor, hydraulic or pneumatic unit or the like, adapted for securing oscillating motion for the tool bit attached thereto when in use.`

The invention also has for its objects to provide such means that are positive in operation, convenient in use,

. easily installed in a working position and easily disconected therefrom, economical in manufacture, relatively simple, and of general superiority and serviceability.

Other and further objects and advantages of the invention as will hereinafter more fully appear, are attained bythe construction herein shown on the drawings and described in the speciiication, forming a part of the application.

Reference is had to the accompanying drawings, in whichthesimilar reference characters denote the same parts.

, n In the drawings;

' FIG. 1 shows a partly fragmentary side elevational f FIG. l.

ICC

atented Apr. 6,1965

PEG. 5 shows another and a slightly enlarged and lfragmentary sectional view of the hand tool and the hammer apparatus therein, taken onlines 5 5 of the FIG. 3.

F IG. 6 shows the elevational View of the chisel tool bit structure.

FIG. 7 shows the elevational View of the marking tool bit. v

FIG. 8 shows a vertically sectional view of the chuck having a chisel or cutting tool bit in position and having a detachable handle associated therewith for regulating the cutting position thereof when attached to said hand tool and in use. I

FIG. 9 shows a side elevational View of the hand tool attached to a power unit.

FG. l0 shows the top View of thehand tool connected to a power unit, taken from the-top of FG. 9.

FIG. l1 shows a sectional plan of the chuck member, showing same in relative position to the extension handle when attached, taken on line ill- 1l or FiG. 8.

Describing the invention more in detail, in its broader aspects, said invention comprises an attachment for a conventional impact hammer generally designated by numeral 2, having a base 4 provided with a pivotin handle 6 including a gripping bar 8.

Said impact hammer 2 which is a spring actuating type, is provided with a front enclosure orhousing 10 consisting of a frame i2 for enclosing amovable bracket 14 also having an internally extending ledge 16 adapted for supporting and for retaining thereon an outer spring i8 and an internally mountedadjustable power spring 26, both of said springs having acommon top enclosure 22 provided with a threaded block ornut 24 and a suitable adjostin g screw 26.

Saidmovable bracket la is slidably mounted within the outer end of said housing 1t? and is also provided with anend cover 28 for supporting saidmovable bracket 14 and for holding saidnut 24 in position, while the lower end section 30 of saidend cover 28 is provided with a downwardly extendingtubular guide 32 which terminates with'a threaded end 34 having a transverse slot 36 disposed at the extreme end thereof, as shown in FIG. 2.

A `hammer plate 33 is secured to said movable bracket llt which is slidably positioned between said end cover 2S and said outer end of said housing lt), so that a vertical movement for said hammer plate 33 may be had, also, said hammer plate is provided with a downwardly extendingend plate to which a hammer t9 is secured and adapted to4 slide within saidtubular guide 32,l as shown in FIGS. 1 and 5.

Saidmovable bracket 14 is also provided with a pair of inwardly extendingpawls 42 adapted for engaging a tiltably actuating pawl 4d which is secured in a pivot section of said frame 2 and is pivoted upon a cross pin 45 and also upon which said pivoting handle 6 is pivotally mounted, said cross pin having the loop'of a spring 48 mounted thereon and wherein one extendedend of said spring is arranged to rest within said gripping bar 8 and the other spring end Si? extends'to and rests at the inner side of said'pivoting handle which is adapted for urging said handle into an outwardly extended position and at the same time actuating-said pawl 44 into a downwardly tilted position, as shown in FIG. l.

The end of saidtubular guide 32 is provided with aremovable locking sleeve 52 having an aperture S4 at its lowermost end and having the diameter of said aperture identical to the inside diameter of saidtubularguide 32, which are adapted for slidably retaining therein the shank upper end of a center punch 55.

The upper end of said 'tubular guide 32 is provided with a pair of cross apertures orholes 58 whichfare disposed below the end of said downwardly extending hammer 4t) arrests f required. 2 i1 Y Said Vcross apertures or holes 531m respective.;

'positions are arranged to pass ,partlyinto the interior of Y andwhich are arranged for'receivingtherem a of` c the locking ends "6% ofV .a lil-shaped lock'springV 62.see p EG. 4, and of which the rontwardly entendinglended lis bent upwardly, as ,shown VinllG; 1, ,for securing anV easy removal `thereof'fremits mount said tubular guide 'Salas shownfin FG. 4, 'so that when said pairfof locking ends ed farel in. position then the inner surface-edges thereof willA engageren,annularrgroove 6e H disposed at the shankupper end '6d oftvsaidcenterzpunchk 56, and thereby holding'samein nositionjwhen in use;

It may-'be notedth'at said annular groove'led .iSfWideinx its structure for allowing a sliding motion tor'the shank end of saidV centerpun'ch 455 whenhold inposition b Y means vof, said retaining spring lockingends dii. V .s f

Inoperation, when said hammer plate -38 is tripped-by i the downward'action of said pivoting handle e, which y in i-ts pivoting motionlc'auses Vsaid springs V1% and Zitto; become compressed andithenY causing said `supportingV internal ledge 16 to become released, it willV carry'down-v mer plate 38, and in its'downwardrmotion causing `said Y internal ledge 16'to stop against a cross butter flth'which consists of a pair of cross plates secured in saidfframe 12v and havinga rubber as shown. A

.j quired when inY usejri `As shown' in FIGS-9 and lpact hammerv isV mounted and held in position betvveenV SaidchiselY tool 98` may alsorbe used in `connection with chuck'ltllwhichis provided with a' suitable shank eX- tensioni or`r'od 411kt-, and adapted for engaging saidl'tubular,guide 32 inainanner as herein before provided, also, said Y chuckl 10i-may, if sodesired, be'rprovided with a pair of sidewardlyfpositioned 'apertures 3106 and which are 4', adapted 'for engaging vthe end prongs 1ii7 of an vextension handieltls, so thatthe'po'sition ofthe Vcutting blade of iclv chisel-'tool 98Vrnay be controlledv and* directedv or re- 10,"said housing Z of said imi j a` pair of brackets orplates 112 and 11d,r respectively,.hav

wardly saidmovable bracketll togetherwithrsaid hamk ing saidtubular guide 32 extended longitudinally asshown,

if Vand in structure and: assembly saidrirnpactfhanimer is ar-V ranged to havesaid tiltablej'pawls 44 ofthe mechanism to be connectedrltoy an extensionV rod jor bar 115 which is ylayer 'Zpositioned therebetween, Y

When pivoting'said handle 6 thenzsaid'hammer 4t) is raised accordingly and released and forced downwardly against Vthe shank .upper end e8 of said center punch 56, and, when it is desired to increase,A the force o f` impact against said bracket VMythen said adjusting screw 26' is adapted for connecting al conventional motion converter Vthat is alsoVV speed:` reducing and yoscillating unit 11S, and

which in operaticn'is actuated by a suitable conventional power motor. 120 that issupported and Iheld in placeand position by means of saidbrackets 112 and, 114, asshown.

It may be noted thatrsaid motor 12) may be a suitable i (electrically operable unit, orsaid motor maybe pneumatic forced downwardly against the adjustable innenpower v spring 20, so that a greater penetration of the point end 76 of said center punch 56 may behad. f

For securing suitable measurements ofa distance when using the center punch 56 and when measuring or marking a radius, angles or the like,"the lower edge vofsaid base 4 Y i throughoutra vviderange.V

is provided vwith a pair ot tubular eyelets 7Sfand 4d() that are disposed at each side thereof, 'respectively seevFlG. 2, to which a tiltable and removable bracket plateV $2 Vis at-V jtached, which is interchangeable and adaptedfor mounting same in position at either side of saidba'selI and arranged to be held in place by Ymeans ofsuitable locating pins 84,Y and'which are secured Vin placeV byw means of a suitable flexible member such aschain or the like, for

'Y preventing same from becomingilost or damaged.

lSaid tiltable and removable bracketplate d2 is pivotally and removably mounted as shown, and the tubular eyelets at each side of said base 4fprovide'means'for using said removable bracket plate $2 vat the' Vside desiredV and or hydraulicY type, so thaty in useV saidrirnpact hammerde- Vice 2 may be operated in a conventional manner and f' using said interchangeable tools as in practice vmay be'most desirable.-

s While this invention is described' herein with great par-v ticularity, it will be yclear'thatr'the `sameV may be modied -Accordingly, itis not proposedV thatrthis invention: be

limited )to the exact-details of construction herein-shown most convenient 4for the user, that may ,be right handed or left handed, also, said'removablebracket plate 82 is v provided with` an angularly extending .retainer S6 having alongitudinal slot 88 whereinY a suitable scale or measur-yY ing rule 90 isslid'ablyjandadjustablyl positioned and heldk in place by means of a fasteningscrew 92 for holding saidscale or measuringV rule in'- any ytended position.

desired longitudinally yeX-l` *A When in use, saidscale or'measuring rule 90y may be surfaces or plates and without Vthe uses'of a conventional hammer, and also, allowing said impact hammer-2 device to be used in close quarters ory crowded'places for making center punch marks or. the like. Y l Y used for measuring lengths and distances between points, a

radius of a circle may be scribed and punched upon steel.

l,on theV drawings anddescribedginthe speciication, and

therefore,reservati0ns of'the ,n'ghtsrinnpractice arel made,

' to the, end thatnecessary changes andvrnodications may f be had, which maycome Withinthe scope of the appended claims. Y We clairn as our invention: .Y

Y1. `In a hand tool impact', device of the class described having a frame, a base in said frame,a front enclosure secured 'insaidfr'ame and a pivotally movable handle connected to said frame; a Vmovable bracket'lslidably mounted inV said front enclosure, Va hammer plate mounted on said movable Vbracket.extending Ydownwardly vtherefrom and terminatingV in a vhamr'ner,y an internal ledge at [the bottom rend vofl said'movable ,bracket extending internally intosaid frame, a top enclosure disposed at the Ntop of said frontfenclosure extending into and blending with said frame; a threaded nut supportedby said top enclosure and lying inclose proximity to the vtopi of said frontenclosure; van outerr impact spring mountedl between and V'carried by said internal ledg'eof 'said movable bracket and disposed against the inner side of said top enclosure,

an inner powerV spring positioned within said outerimpact spring, an Vadjusting'screw adjustably engaging said j threaded nut and engaging saidvinner power spring for adjusting anY impact forcefto ysaid movable'bracket including fWhen sa'idtubular guide 32 of said device is provided Y 'Y with a pin punch'95 as shown'inFIG.,7, Vandfheld in place-J7` when actuatingsaid movablyand pivotally mounted han@V dlethefcombination of, a tubular guide kextending down-Y in the manner herein before provided, said pin punch 9-3 may be Yused-in cabinet'work 'for driving'rsmall and finish nails intoposition, and for performing other operations thatmay be `found adaptable Vin practice. V Also, said -tubular 'guide 32mray bek providedl with a said anvil associated therewith, said movable bracket and said'pivotally movable handle' having a sety of Vplavvl-means for-providing a tripping action for saidrmovable bracket wardly from said vfront enclosure,`said tubular guide having a threaded end sectionY and a 'plurality of transversely rcult slots at theend thereof, a" locking sleeve secured on said threaded end of said tubular guide, a pair of aperktures passing through said front enclosure and said tubular guide, a center punch tool removably and interchangeably disposed in said tubular guide and supported by said lockn jing sleeve when in position, a shank upper end in said `center punch tool disposed in close proximity to and against the end of said hammer, an annular groove in said shank upper end, said annular groove disposed in close proximity to said pair of apertures in said front enend by said hammer and when said set of pawl means are tripped by the action of said pivotally movable handle of said hand tool impact device.

2. In a hand tool impact hammer device of the class described comprising, a frame having a base including a front enclosure, a top enclosure in said front enclosure, a pivot section in said frame having a pivotally movable handle mounted therein and held in pivotal position by a cross pin mounted in said frame, a movable bracket slidably mounted in said front enclosure of said frame and also having a hammer connected to and downwardly extending therefrom, said movable bracket further including a pair of inwardly extending pawls and an inwardly extending ledge, a set of impact springs supported between said inwardly extending ledge and said top e11- closure, tripping pawls mounted on said cross pin and tiltably associated with said pivotally movable handle at said pivotal section of said frame for engaging said inwardly extending pawls and for tripping said movable bracket and thereby carrying with a driving force said movable bracket and said hammer, Ithe combination of, a tubular guide having a threaded end extending downwardly from said front enclosure of said frame for guiding said hammer therein, a removable center punch slidably mounted in said tubular guide having an .annular groove at the shank upper end thereof and disposed below said hammer, a locking sleeve engaging said threaded end of said tubular guide for supporting said center punch in position, and a U-shaped lock spring means in said tubular guide and said front enclosure of said frame for engaging said annular groove and thereby holding said center punch in position.

References Cited by the Examiner UNITED STATES PATENTS 2,558,403 6/51 Wandel 144.1 2,762,435 9/56 Morris et al. 30-267 2,834,116 5/58 Hambrick 33-189 2,855,693 10/58 Holsten 33--189 2,917,747 12/59 Marano 1-49 WILLIAM FELDMAN, Primary Examiner. MILTON S. MEHR, Examiner. 'y j

Claims (1)

1. IN A HAND TOOL IMPACT DEVICE OF THE CLASS DESCRIBED HAVING A FRAME, A BASE IN SAID FRAME, A FRONT ENCLOSURE SECURED IN SAID FRAME AN A PIVOTALLY MOVABLE HANDLE CONNECTED TO SAID FRAME; A MOVABLE BRACKET SLIDABLY MOUNTED IN SAID FRONT ENCLOSURE, A HAMMER PLATE MOUNTED ON SAID MOVABLE BRACKET EXTENDING DOWNWARDLY THEREFROM AND TERMINATING IN A HAMMBER, IN INTERNAL LEDGE AT THE BOTTOM END OF SAID MOVABLE BRACKET EXTENDING INTERNALLY INTO SAID FRAME, A TOP ENCLOSURE DISPOSED AT THE TOP OF SAID FRONT ENCLOSURE EXTENDING INTO AND BLENDING WITH SAID FRAME; A THREADED NUT SUPPORTED BY SAID TOP ENCLOSURE AND LYING IN CLOSE PROXIMITY TO THE TOP OF SAID FRONT ENCLOSURE; AN OUTER IMPACT SPRING MOUNTED BETWEEN AND CARRIED BY SAID INTERNAL LEDGE OF SAID MOVABLE BRACKET AND DISPOSED AGAINST THE INNER SIDE OF SAID TOP ENCLOSURE, AN INNER POWER SPRING POSITIONED WITHIN SAID OUTER IMPACT SPRING, AN ADJUSTING SCREW ADJUSTABLY ENGAGING SAID THREADED NUT AND ENGAGING SAID INNER POWER SPRING FOR ADJUSTING AN IMPACT FORCE TO SAID MOVABLE BRACKET INCLUDING AND ANVIL ASSOCIATED THEREWITH, SAID MOVABLE BRACKET AND SAID PIVOTALLY MOVABLE HANDLE HAVING A SET OF PAWL MEANS FOR PROVIDING A TRIPPING ACTION FOR SAID MOVABLE BRACKET WHEN ACTUATING SAID MOVABLY AND PIVOTALLY MOUNTED HANDLE, THE COMBINATION OF, A TUBULAR GUIDE EXTENDING DOWNWARDLY FROM SAID FRONT ENCLOSURE, SAID TUBULAR GUIDE HAV-

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