Патент USA US2406132код для вставки
Aug. 20, 1946. ' " ' A. J. CALAMAN ‘ TOOL 2,406,132 ' RETAINER Filed June 14, 1945 é % % , ,, _ I INVEINTOR nwr‘llolvr J. C?vl- (Mn/V 8% ATTORNEY v ‘ Y Patented Aug. 20, 1946 ,' 2,406,132 _ UNITED STATES PATENT up ‘or-nee > 2,406,132 TOOL RETAINER‘ V V v Anthony J L ‘,CaJaman,,'O'svvego, N,v Y; 7 ' ' ‘Application June i4, 1945; seen No.]:599,479¥ iclaiin} '(cl. 279-191) ' My invention relates to certain new and useful improvements in tool retainers,’ and while pri marily intended for use in connectionwith power operated hamm'ersyit will be obvious that the device may be employed for any other purposes wherein it is found to, be applicable. 7 ' Important objects of the invention are to pro ' .2“, of apertured, lateral lugs ‘I, which are. formed integral'with-vth'e former and diametricallyop-iv posed" relatively‘to' each other. The cylinder" ‘ studs 8 and 9 extend through‘ respective lugs‘! and carry the absorber springs III, in the usual manner. _ v‘ ‘ .1 - I‘ " The present invention comprises a substan tially L‘-'shaped holding arm II, consisting of a vide'ra tool retainer of the character described, vertically disposed portion I2, and a horizontally which will prevent the escape of the tool from the hammer during the operation of the latter or disposed portion I3. The upper end of the arm‘ when the same is being handled or transported portion .I2' is provided ,withl'a horizontally ex when not in use, which is conveniently operable‘ tending connecting head I4, which is formed with a threaded aperture I5 adapted for engagement for securing and releasing the tool, which em on the threaded projecting end of the stud 8 to bodies relatively few parts, and which may be readily installed in hammers already ocnstructed 15 attach saidl connecting‘ head I4 against the‘ un . as well as form a component part of a new ham mer structure. der side of the associated lug ‘I, as clearly shown in'Fig.1.' Y ' ’ > ' The horizontal ‘arm portion I3>is curved lon-T gitudinally outward, and provided with a semi a device of the class stated, which is simple in its construction and arrangement, strong, durable 20 hexagon shaped notch I3’, which is disposed cen and eflicient in its use, compact, positive in its , trally on the inner side thereof. The notch I3" Further objects of the invention are to provide action, attractive in appearance, and compara tively inexpensive to manufacture. With the foregoing and other objects in view, is' adapted for engaging the'hexagon shaped tool’ 6, andiconsequently is shaped to. conform to the _ latter; " which will appear as the description proceeds, The tool s’ is provided with the/usual‘ a?n?la'r" ?ange I6, which is disposed at the point ‘of juncé the invention consists of the novelv construction, combination and arrangement of parts herein ture with the tool shank 5. When the arm II is speci?cally described and illustrated in the ac in the holding position, the horizontal portion l3 companying drawing, but it is to be understood thereof engages the tool 6 directly beneath the that changes in the form, proportions and de 30 annular flange I6 in the notch I3’, thereby al tails of construction may be resorted to that lowing the ?ange IE to rest upon the said hori zontal arm portion l3 and preventing the come within the scope of the claim hereunto ap pended. escape or removal of the tool shank 5 from the In the drawing wherein like numerals of rer erence designate corresponding parts through out the several views: Figure 1 is a side view of my improved tool retainer attached to a power operated hammer, parts of the latter being in cross section and broken away. » Figure 2 is a top plan view of the device. Figure 3 is an enlarged cross sectional view on line 3-—-3, Figure 2. Figure 4 is a side view of the latching member and of the associated locking rod. Referring in detail to the drawing I denotes hammer socket 3. The ‘attachment of the connecting head I4 with the stud 8, in the manner stated, provides a pivotal connection for the holding arm II, and permits the latter to be swung to the holding‘ position as stated, or to the releasing position, 40 as shown in dot and dash lines in Figure 2. The free end of the horizontal arm portion I3 is provided with a head I‘! formed with an aperture l8. The head I1 is adapted to being secured between a pair of spaced, horizontally disposed jaws I9 and 20, which are formed in tegral with the lower end of the connecting a power hammer of the type now in common use sleeve 2|. The latter is provided with a bore 22, and operated by the use of air, steam, electricity the upper portion of which is threaded, as at 23, or gasoline, in a manner well known in the art for connecting said sleeve 2| to the threaded to which the invention appertains. The hammer 50 projecting end of the stud 9 against the under I includes the usual cylinder 2, which is formed side of the associated lug ‘I, as clearly shown in Figure 1. with a bore for the reception of the anvil 4, and with a socket 3 for the reception of the shank The jaws I9 and 20 are respectively prow‘ded with apertures 24, which are aligned with the 5, of the tool 6. The cylinder 2 is provided with the usual pair 55 sleeve bore22. The diameter of the. jaw aper 3 v - ' 4 . ' , ‘tures 24 is less than the diameter of the sleeve The latching member 26 is provided witha " bore 22 to provide a shoulder 25 between the pair of circumferentially extending grooves, in- ‘ dicated at 33 and 34, which are adapted for en-' ‘ upper jaw aperture 24 and the sleeve ‘bore 22,v for the purpose to be described. gagement by the projecting inner ‘end of the locking rod 32. When the upper groove 33 is en gaged by the locking rod 32, as shown in Figure 3, thelatching member 26 is locked in the latched position.- When the latching member 26 is forced , Arcylindrical latching member 26 is mounted and longitudinally slidable in the sleeve bore 22, and normally extends in the latching position through the apertures 24 in the jaws l9 and 26. The upper end of the latching member 26 is pro vided with any outwardly disposed annular ?ange .10 to thereleased position, the locking rod 32 will engage in the lower groove 34 and lock said latch ing member 26 in the released‘ position. 21, which ‘is adapted for engaging the shoulder ‘25 for preventing the latching member 26 from The latching member 26 is released from either of ' ‘the locked positions by pulling the locking rod 32 ' passing entirely through the jaw apertures‘ 24. The latching member 26 is provided with a outwardly until the inner end thereof clears re deep pocket 26' for'seating the lower- end of a 15 spectivegrooves 33 and 34. spiral actuating spring 28. The upper end-of The present invention provides a most em the latter is seated in a pocket 28, formed inlthe , cient device vof'itszkind, which is ‘conveniently adjusting plug 30. The latter is threadedly en operable for holding or releasing the tool from gaged in the threaded bore portion 23"and f'ad the hammer, whereby tool changing and manipu justable therein to'establish the desired tension 20 lations are greatly facilitated and expedited.‘ , to .the‘spring‘28. The action of the springc28’ WhatIcIaimis: .- - " normally, forces the latching member 26 'down wardly to the latching positionthrough the jaw, In combination, a .tool retainer for a power operated hammer comprising a holding arm hav apertures 24, as shown in Figure 3. ing one end thereof pivotally attached to the: ~ _ ,. ?whenthe arm I I is in the holding position, the 25 hammer, a connectingsleeve secure to the ham-- _ ahead I‘! thereof is disposed between the jaws l9 mer, a pair of spaced jaws carried bysaid con- 7 and 2B‘, and the aperture 18 of said head I'Lis necting sleeve for receiving the free end of ,said ‘ in exact registration with the jaw apertures 24, holding arm, a spring actuated latching-member " allowing the latching member 26 to extend connecting with said sleeve and shiftable in the 7 through both jaw apertures 24 and through the 30 latter for securing and releasing said free end ‘of head aperture l8, and thereby securing the arm said holding arm, said latching memberrbeing provided with a pair of circumferentially extend llin the holding'position, as clearly illustrated ing grooves disposed adjacent to‘ respective ends. thereof, a spring controlled locking rod mounted To release'the arm head I‘! from the jaws l9 and 20, the‘latching member 26 is forced up 35 in one of’ said pair of jaws and normally oper wardly-into the sleeve bore 22, by means of any able-for engaging in one of said pair of grooves for holding said latching member in the secured suitable implement, until the lower rounded end position and in the other of said‘grooves for 3| of saidlatching member 726 clears thev arm holding the latching member in the released posi inFigu-re3.>? head l1. 7 —' ' ' 1 r , ' _- , . ‘ I A spring‘controlled locking rod 32 is shiftably 40 tion,‘ and means mounted in said sleeve for adjusting the spring actuating said latching mem mounted in the joined side of the upper jaw l9, and has its inner end projecting into the upper aperture 24,of the jaw I 9. "The locking rod '32‘ extends horizontally and is provided for locking; the latching member 26 in the latched and re leased positions. 7 > I, a‘ r V _ a , ber. , ' , ANTHONY J. CALAMAN. '