US2370991A - Padlock - Google Patents

Description

March e, 1945. R J @HNO 2,370,991

PADLOGK Filed Nov. 11, 1943 Patented Mar. 6, 1945 PADLOCK Richard J Ohno, North Branford, Conn., assignor f to Sargent & Company, New Haven, Conn., a

corporation of Connecticut y l ApplicationNovember 11, 1943', Serial No. 509,821v

(ci. vo-as) 1o claims.

This invention relates to padlocks, and more particularly to a padlock made up of a plurality of superposed plates orr sections which form the body of the lock and house the locking' mechanism. It will be'understood, however, that certain features of the invention may be employed in connection with locks other than padlocks, although, in the present instance, they are illustrated as applied to a padlock. l j' In the construction of a padlock having a lami nated body or case formed of superposed plates or sections, it is desirable to provide lock mechshackle to hold it in locked position but alsgjto' i the means for preventing the complete detach, ment of the shackle from the lock when the shackle is open, and in addition to the key-operated lock mechanism which bolt. v i

It is contemplated by the present invention to improve the 'various features above referred to,

with particular reference to the means for securing the shackle against complete detachment serves to rotate l.the

from the lock and to the means for securing the I key barrel in the housing of the key-operatedlock mechanism.

One object of the invention is to provide a padlockrhaving a laminated body made up of a plurality of superposed sectionsv or plates and having novel means for securing the against detachment from the lock.

A still further object of the invention is,v to provide a padlockhaving a key-operated locking member cooperating with the shackle and mech' anism for operating -this member, including a. lock housing and key barrel, with improved meansfor retaining the key barrel within v,the housing, and at thesametime providing a. stop tov limit the rotation of the key barrel. A still further object of the invention is vide a lock mechanism having a lock housingand a key barrel rotatably mounted.therein, with a combined securing and limiting member'which will function satisfactorily to retain the keybarrel in place within the lock housing `and also serve as a means of limiting the rotation of the key barrel. Y

Still another object of the invention is tofprovide a padlock having a body of laminatediform with a member extending transversely of the case shackle and engaging at its intermediate portion with a shoulder'exte'nding transversely of the shackle to prevent complete detachment of the latter from the case, which member, in the formk shown, is resilient or a spring member to yieldupon rota-l,

tion of the shackle.

To these and other ends, the invention relates to the novel features and combinations of parts to be hereinafter described and claimed.

In the accompanying drawing:

Fig. 1 is a front elevational view of a padlock embodying my invention;

Fig. 2 is a top plan view of the same; I v Fig. 3 is a bottom plan View of the lock; Fig. `4 is the central longitudinal section through the lock, some parts being shown in full lines;

Fig. 5 is a sectionalview on line 5--5 of Fig. 4; Fig. 6 is a sectional view on line 6--6 of Fig. f1; Fig. 7 is a sectional view on line 1-1 of Fig. 4;

and ,v Fig. 8 is a sectional view on line 8-8 of Fi g.'4. To illustrate a preferred embodiment of ,my invention, I have shown a padlock comprising a case or lock body III of laminated form made of a plurality of superposed sections which Willbe described in detail hereinafter. These sections, as will be explained, are of various conformations, particularly with respect to the openings therein which receive the workingr parts of the lock. `It will be understood thatthe plates are all of the same exterior pattern, however, so that when superposed and iirmly secured together the lock body will have a smooth cuter surface.

In the present instancerthe bolt of the lock is designed to be operated by a pin tumbler locking mechanism and the platesy are arranged to re-l ceive a structure of this kind. Itv will be under-l.

stood, however, that the lock is not limited to a" locking mechanismv of this character. This,` mechanism comprises the usual key barrel II,

rotatably mounted within a housing I2f-having a pin tumbler extension I3. It will be noted from Figs. 'Tand 8. for example, that the lkey barrel `I I This reduced neck is at lupon two sides, asy shownat I6 and I1 in Fig. 7, and isradapted to be closely embraced by a disk I8 slotted to receive snugly the neck I5. It will be apparent from Fig.

8 that the disk I8 is of suicient size to overlie the .upper end of the housing I2 around the key.

ber, as will be hereinafter described.

The upper end of the key barre1 is reduced in size, as shown at 20, and is of noncircular form 'to be received in an opening 2lv infan oscillating locking member 22, the ends 23 and v24 of which cooperate with recesses 25 and 26 in the shackle 2'I to retain the shackle in locked position, will be clear'to those skilled in the art.

One leg ,of the shackle 2'Il is longer than the other, this longer leg 28 exter'i-ding downwardly to' a'position adjacent the bottomof the cas'e where l it is provided with an annular recess or groove 'of'the plates are provided with openings to re- 29 and with a lateral recess, 30 at `one side, form.- -1 Below the recess 29, a

ing a flattened face. head 3|, against which bears a spring 32 to urge theshackle-to open position. A' g Aswill be apparent when thelocki-ng member 22 is rotated `or oscillated, so as to disengage its ends 23 and 24 from the recesses 25 and26,"the` .spring 32 would tend toforce the longer legerv the shackle from the opening in which it-rersts and thus detach the shackle completely from-the lock. This, however, is prevented by means` of a retaining member 33, shown moreespecially5 in Figs. 6 and "I, which retainingmember extends transverselyacross thelock case,I lying in an opening in the plates forming the case, and bears at its intermediate portion l against the iiat' face-.3D of the shackle leg 28. The member'33 is surficiently resilient so that the shackle 'may be r'otated'when it is inopen p`osition, the member 33 yielding at its central portion to permit this action. Normally, however, such rotationv will occur when the shackle is in its full openl position and the spring 3,3 lies within 'the annular recess 29 and, at this time, the spring engages the up-4 per surface of the head 3l to'retain the shackle connectedtothe lock case.. y Y` The various sections which go to makeup the lock case will now'bedescribed. The twojuppei sections, designated by the letterI a, eeide'ntieai r' in form and are of the shape shown. in Fig. 2. conf. taining a. circular opening'adjacent each en'dfo'r reception of the shackle.. The' next two lower plates are. designated by the reference character l?. and ar'e'cf` theY form shown in Fig. 5.-, Irl'hes'e plates are provided' with central openingsof irl regular shape, theseopenings providing a chaine.- ber for the locking member 22, thechamber being s uiciently spacious tofpermit thismember `to oscillate. These plates are also provided kwith shoulders 35 against which bears a spring 36 act-l ingat, its other end against a'shoulder 31 on the lockingmember 22 to normally urge this memberv to locked position, as shown in Fig. 5. 4The "next lower plate, designated by the reference characr' ter c, is shown in. Fig. 6 and. .as will be apparent,

it is providedwith anopening of irregular shape to; receive the spring'33,.one le'g of the shackle,

and the. upperendloi` v the keyfbarrel. Thev vnext, lower .section'd isiormed as4 shown in Eigj, and' is'provided with anopening' of irregular shape;

as shown at 39, this opening being adapted Ato re-1 eeive the longer iegef the shackle, the Spring .33,- the disk I8',- and a portion'of the key barrel' rern--Y gaged by the lug I9 to form a stopfor the rotal tion of the key barrell in one direction. The rotation of the key barrel in the other direction is limited by a portion 4| of the plate d which engages the opposite face of the lug I9.'

Below the plate or section d are a plurality of plates e of identical form. Each of these plates'is provided with a relatively large opening of the proper lsize-,fand yshape' .tor` receive `thepintumbler lock housing" I2 and extension I3,'andwith'a small ycircular opening to receive the leg '28 of the shackle and the spring 32. i

The lowest section or plate .f 1s of the form shown in Fig. 3 and is provided with a single cir- "cul-'ar opening -t'o'r'eceive the head I4 of the key barrel."'1t'lwill'l bef-understood, however, that all y ceive` rivets 42 by which the vsections are secured 'together to form arigid body of smooth exterior outlines. It will also be apparent that the spring 3 35 is, held in. position byhaving its ends lodged between portions of, t he openings in. the plates c` and` d', and particularly betweentheedges of these. openings and the posts-,42, so thatf'the' ends 0f vthe .spring will beheld ,fairly rigidly against movement, A .u The devceis shown inlocked positionin Figs. 45, and. 7 of the drawing .where vit willbe seen the ends'23 and 24 ofthe bolt areengag'ed inthe recesses.2 5 and. 2.6i. If fa. keyis inserted inthe lock and the key'barrel operated in a counter; clockwise directionfas viewed in Figs. 5. and-7,. the

beltfwili'be disengaged fremthe shackle' and will permit the `shackle to-be moved outwardl-yfby the from a positiona'gainstfthe member 40, asvshown in. Fig. "7.' toa positionagainst'the edge r4|, of opening yin the plate d.' Wh'enthe shackle vhas been'moved outwardly bythe spring 32, the longer ieg' 28. thereor win. retain, the/telt 22. in its un.,`

' the posi'tonshown in Eigl.

' in s'aid openings, said long leg having a shoulderAv from vreference to'Fig. 7l that the pintumblei .c X-f f tension I3 of thehousing, I2' isprovided with an upstanding 'member' -or, lug- 40 v( iesigned to 'be en -7 locked position by.' engagement vvithtlieside surface of, the end. 24'.of-tlie bolt. The. shackle may now be rotated with'respect to the 'casing |0,if

desired, in order tofree it from the hasn crother element. .withwhichjitfhasbe'en engaged.,

' Although tl 1e bolt ,2 2 will 4.be Iheld positio to which it'has 'beenrotatedgthe keybarrel may be .returned to itsoriginal position so. as .to align' the tumblers (not s hownlto'permit removal. of the keyby'reason of thev fact that theopening, 2|, as shown in 5,.,has enlarged ends which will permit relativemovement between theb'olt.

and theupperreducedjpogition 2.0. of the key bar-' f elLj If" it isz desfir'ed'.'toreturn the shackleftfolocked position,j ithe.vshort. end. thereof' maybe broughtoppositethe opening in which it is re.- Geived, andthe. shackleypressed' downwardly.

Whenit reaches the 'position shown in Fig. ll,-

the., 'boltl .'will bef. returned by' the "spring 36.,

While I .have shown, and descrilced'v-lza,y preferred embodiment of. my invention, it. will be .underfA stood that itisnot. to b 'elmiteduto '.alluofzithe. details .showmbnt is capablejoi'mddiiication and variatioli'withn the Spirit.ofy.the"illveiltionE withintnes .ope et'thegamqended:eidims..

L' what I claim" is;

,1. A, padlock 'comprising case and' having .a` long.. and fa 4v,short leg .received adjacent. thelower end thereof and .aflat resilie'nt, member extending' transverselyacross one v aca'sehavingfs'hackle openings therein.. a. shackle cooperating with the,A

urged against the side of said long leg to engage said shoulder and prevent detachment of the shackle from the case.

2. A padlock comprising a case, a shackle cooperating with the case and having a long and a short leg, said long leg having a shoulder adjacent the lower end thereof, a flat resilient member extending transversely across one end of the case and urged against the side of` said long leg to engage said shoulder and prevent detachment of the shackle from the case, and said case comprising a series of superposed plates and rivet members holding said plates together, said member bearing at its ends against certain of said rivets.

3. A padlock comprising a case, generally oblong in shape and having a shackle opening adjacent each end thereof, and a shackle member cooperating with the case and having a long leg and a short leg received in said openings, said long leg having a flattened portion adjacent its lower end and a shoulder below said portion, and a iiat spring member extending transversely across one end of the case and bearing at its in,- termediate portion against said flattened portion of the shackle and engaging said shoulder to prevent detachment of the shackle from the case.

4. A padlock comprisinga case, generally oblong in shape and having a shackle opening adjacent each end thereof, and a shackle member cooperating with the case and having a long leg and a short leg received in said openings, said long leg having a flattened portion adjacent its lower end and a shoulder below said portion, a

Y flat spring member extending transversely across one endof the case and bearing at its interme- .diate portion against said flattened portion of the shackle and engaging said shoulder to prevent de` tachment of the shackle fromthe case, said case comprising a plurality of superposed plates, and

' said spring being disposed in openings in certain of said plates.

5. A padlock comprising a case formed of a plurality of superposed plates having openings therein to provide a chamber, a lock housing seated in said chamber, a key barrel rotatably mounted in the lock housing and extending therefrom at one end, said key barrel having a reduced portion on said end and an enlarged portion beyond said reduced portion, a retaining element non-rotatably embracing said reduced portion and engaging the housing to retain the key barrel therein, said element having a projecting lug,` and stop means to engage said lug to limit rotation of the key barrel.

6. A padlock comprising a case formed of a plurality of superposed plates having openings therein to provide a chamber, a lock housing and a stop member on said housing to engage plurality of superposed plates having openings therein to provide a chamber, a lock housing seated in said chamber, a key barrel rotatably mounted in the lock housing and Vextending therefrom at one end, said key barrel havinga reduced portion on said end, aretaining element non-rotatably embracing said reduced por` tion and engaging the housing to retainthe key barrel therein, said element having a projecting lug, and stop means engaging said lug on both sides thereof to limit rotation of the key barrel in either direction.

v8. A padlock comprising' a case formed of a plurality of superposed plates yhaving openings therein to provide a chamber, a lock housing seated in said chamber, va key barrel rotatably mounted in the lock housing and extending therefrom at one end, said key barrel having a reduced portion on said end,.a retaining element l non-rotatably embracing said` reduced portion and engaging the housing to retain the key barrel therein, said element having a projecting lug,

seated in said chamber, a key barrel rotatably' mounted in the lock housing and extending therefrom at one end, said key barrel having a reduced portion on said end, an element non-rotatably embracing said reduced portion and having a projecting lug, a stop member on said housing to engage said lug and limit rotation ofv the key barrel, and means on one of said plates to

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