US2419213A - Padlock - Google Patents

Description

April 22, 1947. J. HINEs Y 2,419,213 i PADLocK Filed Feb.. 14, 1945a iNvr-:NTOR

ATTORNEY 'Patented Apr. 22, 1947 UNITED STATES PATENT orne-E PADLOCK John Hines, South Norwalk, Conn., assigner to yNorwalk L'ock Company, New York, N. Y., a corporation of vConnecticut Appiieauen February 14, 1945, serial No. 577,858

(Cl. 'NY-38) 12cm-ms.

1 The 4present invention relates to locks and specifically -is concernedV with 'a novel padlock wherein a tumbler carrying and key controlled plug is utilized to operate bolt means for unlocking the latter from a conveniently accessible shackle, The primary object of the invention resides in the provision of Ya simplified padlock having `relatively fewparts to assemble and einbodying offset and -pivoted bolts adapted to be actuated upon rotation o f the plug to withdraw the Ylocking portions of the bolts simultaneously from the spaced legs ofthe slidably and rotatably guided shackle. The invention has as a further objectvprovision of a hollow casing having a rearwardly arranged bearing integral with spaced sockets disposed within the casing and Yhaving a hollow boss integrally merged with one of the sockets and within the body of the casing, the arrangement being such that spaced fulcrum pins for pivotally sustaining the bolts are removably mounted in the sockets whileone oi the fulcrum pins traverses the hollow boss to characterize stop means to preclude the compl-ete withdrawal, of the shackle which is spring con; trolled and automatically shiftable outwardly upon the disengagement of the bolts from the legs thereof. Further functional and structural features of the invention will appear from the fol'- lowing detailed specification considered with' the accompanying drawings wherein: v

Fig', =1 is a rear elevational View of the Ypadlock with the cover thereof removed to illustrate the internal mechanism.

Fig. 2 is a transverse sectional view of Fig. 1, and

Fig. 3 is an exploded view of the padlock.

j According to the invention the padlock P ernbodiesa casing C that is preferably die cast -and is provided with a tubular concentrically arranged bearing B integrally merged with tli front wall I of the casing.

Rotatably mounted within and guided by bearing B is the key receiving cylindrical plug' Il having rthe conventinal 's'lidab'ly guided sprint;r controlled plate tumblers I2 adapted to be re#- ceived iria slot as I3 interrupting the bearing to rmvably interlock therewith. l

With th'e key K arranged in the plug, tumblers I2 are out of slot I3 and flush with the outer surface of the cylindrical body of the plug and hence the nner may be rotated by the key.

Integral with and laterally extending from the tearing B' are the spaced seekers I4 eiosely and reinoiably receiving fulcru-m pins I5 normally adapted to projecta small distance out of th'epin vpositioning sockets I4,

Disposed -laterally of bearing B but merged with one of the-sockets AIll and integral therewith and bearing B is the boss lI 'Il having the vertical bore I8 for 'slidab1y yand-rotatably guiding the long Yleg I9 of the U-shaped shackle 20.

The bore i8 of boss I'I is normal tothe bore or opening 2| in the adjacent bearing I4 and intersects or communicates therewith to permit 4`its removably associated pin or post I5 inserted in opening 2i to partly extend into and overhang bore I8 and form a stop to 'coact with collar '2;2 of the leg I 9 having the flattened face 23to-per mi t access to the iiange 22 and including a lnotched ornkeepernporton 24. Y n Y Y,

t Removably and pivotally sustained by the removable pins AI5 are the opposed locking .iaws

a'2li' provided with Nlower limbs 26 having the straight faces 2l. These jaws also include openings 278 closely 'but lremovably receiving fulcrum pins I5 to dene a pivotal'connection.A

The upper limbs of the -jawsrembody the 'infclined intermediate `porrtions 29 which extend in a forwardly direction towards "bearing Band overhang the latter below the top wa1l`30 of the casing andthe terminals of the upper limbs each embody a lateral extending cam shapedlip `3'I for disengageably interlocking with the `keeper portions or notches 24 and 32 of the long and short legs I9 and 3 3 of the `shack-le respectively.

I The lower limbsj26 of the jaws are arranged in the spaced slots 34 at the rear end of the plug and are adapted to bespread apart or actuated when therectilinear faces 2'I are operated by the rectilinear faces 35 of the opposed slots '34 upon yrotation of the plug.v

Lugs 3l extending from the intermediate po'rtions of the jaws or levers 25 removably hold the helicoidal spring 36 which tends to urge the upper terminals of the jaws apart and the lower limbs 26 interlocked with the walls of slots 34, the lower terminals awaiting tobe actuated by the,l web vorrestricted portion 35 also having the straight faces 35 straddledbythe lower limbs.

rupte'd by a cutaway portion or recess p33 receiving Aa complementary elosurelip 39 remove ably and closely fitting into recess 3-8 and integral with the cover 4G having a substantiallyrannular inside raised boss 4I seated'against projection 42 'extending vfrom bearing Band against the fulcrurn pins I5, thus desirably sustainingV the hitter liaseekets |4 and ene'oinitanuy'iirleny positioning the cover relative to the casing after tated clockwise or counterclockwise.

p'anded spring 36.

3 which the latter has its beveled rim 31' spun over at 43 to hold the cover in its set position.

Extending from and integral with the casing are the hollow nipples 44 and 45, the former together with boss I1 rotatably and slidably guiding the leg I9 of the shackle while the latter removably and rectilinearly guides the displacement of the short leg 33.

Conned within the bore i8 of the hollow boss I1 is the helicoidal spring 46 and collar 22 is seated on this spring and hence the shackle is resiliently seated and is automatically projected Vin a direction away from the casing upon the disengagement o the lips SI from the notches 24 and 32.

With the present invention no rivets, screws or similar fastening means need be utiliz-ed. Moreover the padlock comprises relatively few simple parts adapted for quick assembly or replacement.

With the cover 4I) in its closed relation with the casing, the iulcrum pins are against boss 4I of the cover and if the key be inserted in the plug, the tumblers I2 are withdrawn from slot I3 in the bearing. Hence, the plug may be ro- In either case, walls 35-of slots 34 of the plug shift the lower limbs of the jaws outwardly as indicated by the dash and dot lines in Fig. 1 while the oiset 'upper limbs of the jaws swing towards each other against the resistance of the normally ex- Thus lips 3I are removed -from the legs of the shackle and the latter is projected outwardly by the formerly compressed Spring 46 until collar 22 strikes the fulcrum pin I overhanging bore I8 of the boss I1. By such yaction the short leg 32 is completely withdrawn vfrom lthe nipple 45 and the shackle may' then be rotated relative tothe nipple 44.

v For again interlocking the shackle with the boltg'the former is rotated to aline leg 33 with the nipple 45 and the shackle is depressed against the spring 46 and with the plug in its neutral position lips 3| of the bolts interlock with the keepers 24 and 32 and such action is maintained bythe spring'BB.

The simplicity in the matter of assembling is apparent. To this end, spring 45 is iirst insertedinthe'bore I8. Thereafter leg I9 is positioned in thenipple 44 and depressed. The plug is then positioned in the bearing B. The fulcrum pins .are know inserted in the sockets I4 leaving predetermined portionsthereof projecting from the bearings. ThereafterV the opposed bolts are mounted on the iulcrum pins and interlocked ywith the plug. Spring 36 is then arranged on the projections 31. Following this, the cover is disposed Vwithin the rim 31 and against the inherannular but interrupted shoulder 41 and the projecting lug 42 of the bearing B. By such positioning of the cover 49, the rearwardly inclining* lip 39 thereofis received in the complementary gap 38 and becomes seated against the shoulder 43 and under the arcuate and overhanging'ledge or margin 49 of the top wall 3U integrally'merged with and interconnecting the ' spaced nipples 44 and 45 after which the beveled rim 31 is spun over as at 43 to firmly anchor the cover in place and pursuant to the -positioning of the cover, the terminal portion 50 ofY the plug is rotatably received in the centrally arranged recess 5I of the cover or closure.

. Various changes may be made vin detail of construction and arrangement of parts without departing from the spirit of the invention or sacrificing any of the advantages therein.

I claim:

l. In a padlock, a hollow casing having a bearing, a hollow boss within said casing and integral therewith, key controlled means rotatably guided by said bearing and having tumbler means for removably interlocking with said bearing, socket means interrupting said boss and communicating therewith, a pair of spaced nipples extending from said casing, a shackle having a relatively short leg slidably guided by one of said nipples and having a relatively long leg rotatably and slidably guided by the other nipple of said pair, pin means at least in part disposed in said socket means and said boss, bolt means pivotally mounted on said pin means and having means actuated by said key controlled means, said legs having keeper means, and means extending from said bolt means for interlocking with said keeper means. v I

2. In a padlock, a hollow casing having a bearing, a boss within said casing and integral therewith and having a bore, key controlled means rotatably guided by said bearing and having tumbler means for removably interlocking with saidbearing, socket means having an opening and communicating with said bore, a pair of spaced and hollow nipples extending from said casing and communicating with said bore and the interior of said casing, a shackle having a relatively short leg slidably guided by one of said nipples and having a relatively long leg rotatably and slidably guided by the other nipple of said pair, pin means at least in partdisposed in said Vopening and in part projecting into said bore, bolt means pivotally mounted on said pin means and having means actuated by said key controlled means, 'said legs having keeper means, and means extending from said bolt means'for interlocking with said keeper means. 3. In a padlock, a hollow casing having a bearing', a hollow boss within said casing andintegral therewith and having a bore, key controlled means rotatably guided by said bearing and having tumbler means'for removably interlocking with said bearing, socket means having an opening substantially. normal to said bore and in communication therewith, a pair of spaced and hollow nipples .extending from said casing Vand communicating with said bore A'and the interior of 'said casing,"a spring controlled shackle having a relatively short leg slidably guided by-one of saidnipples and having a relatively long Vleg rotatably and sndably guided by the other nippie of said pair, pin .means inserti-ble at least-in part in saidopening and bore and characterizing stop means, bolt means pivotallymounted on said pin means and having means actuated by said key controlled means, said legs having keeper means, means extending from said bolt means for-interlockingr with said keepermeans, and means cooperating'with said stop means to limit the linearA displacement of said shackle in a direc-` tion away from said casing; v f

fl, In a padlock, a hollow casing having a'bearing, a hollow bosswithin said-casing andintegral therewithand.A having a bore, keyv controlled means rotatably guided by said bearing and having tumbler' means for removably interlockingwith s aid bearing, socket means integral with ysaidcasing and boss and havingv an opening substantially normal tosaid bore andin' communication therewith, apair of spaced andj hol'- low lnip-ples extending Yfrom said casing, a shackle andere leg rotatably and -slidably guided Abythe other nippleof said pair, pin means insertible-at least in part in said opening and bore and characteriz- -ing stop means overhanging said bore, bolt means pivotally mounted on said pin means and'having means adapted to be actuated by said key controlled means, said legs yhaving keeper means, means extending from said bolt means for interlocking with said keeper means, a collar cooper- Yating with said stop means to limit linear displacement o-f said shackle, and spring means for automatically projecting said shackle in a direction away from said nipples upon disengagement of said bolt means from said keeper means,

v5. In apadlock, a hollowicasing having a bearing, ka hollow boss within said casing and integral therewith and having a bore, key controlled means rotatably guided by said bearing and having tumbler means for removably interlocking with said bearing and including an end having grooved means, a pair of spaced and hollow nipples extending from said casing, a pair of spaced sockets each having van opening and one of said yopenings being substantially normal to said bore and'in communication therewith,a shackle vhaving a relatively short leg slidably guided by one of said nipples and having a relatively long leg rotatably and slidably guided by the other nipple of said pair, a pair of spaced pins at least in part insertible in said openings and one of said pins projecting into said bore t characterize stop means overhanging said bore, spaced bolt means pivotally mounted on said pinsand having spaced lower limbs removably `interlocked with rsaid grooved means and having spaced upper limbs including laterally extending projections for interlocking with said keeper means, and spring means for urging said limbs towards said legs for interlocking with said keeper means.

6. In a padlock, a hollow casing having a bearing, a hollow boss within said casing and integral therewith and having a bore, key controlled means rotatably guided by said bearing and having spring controlled tumbler means for removably interlocking with said bearing and including a web and having spaced grooves, a pair of spaced and hollow nipples extending from said casing, a pair of spaced sockets each having an opening and one of said openings being substantially normal to said bore and in communication therewith, a shackle having a relatively short leg slidably guided by one of said nipples and having a relatively long leg rotatably and slidably guided by the other nipple of said pair, a pair of spaced pins at least in part insertible in said openings and one of said pins projecting into said bore to characterize stop means overhanging said bore, spaced bolt means pivo-tally mounted on said pins and having spaced lower limbs removably interlocked with the walls of said grooves and adapted to be actuated by said web and having spaced upper limbs including laterally extending projections for interlocking with said keeper means, and spring means for urging said limbs towards said legs for interlocking with said keeper means.

7. In a padlock, a hollow casing having a bearing, a hollow boss within said casing and integral therewith and having a bore, key controlled means rotatably guided by said bearing and having spring controlled tumbler means for removably interlocking with said bearing and including a web and having spaced grooves, a pair of spaced and hollow nipples extending from said casing, axpairy of lspaced sockets each having van opening and one of said openings being substantially normal to said bore and yin communication therewith, a shackle having a relatively short leg slidably guidedv by one of said nipples and having a relatively long leg rotatably and slidably guided by the other nipple of said pair, a pair-of spaced pins at least lin part insertible in said openings and one of said pins projecting into said bore to characterize stop means overhanging said bore, spaced bolt means pivotally mounted on said pins and having spaced lower limbs removably interlocked with the walls of said grooves and adapted to be actuated by said web and having spaced upper inclined limbs sloping towards the interior of said casing and including laterally extending projections for interlocking with said keeper means, and spring means for urging said limbs towards said legs for interlocking with said keeper means.

8. In a padlock, a hollow casing having a vbearing, a hollow bosswithin said casing and integral therewith and having a bore, key controlled means rotatably guided by said bearing and having tumbler means for removably interlocking with said bearing and including a web and having spaced grooves, a pair of spaced ,and yhollow nipples extending from said casing, a pair of spaced sockets integral with and within said casing and each of said sockets having an opening and one of said openings being substantially normal to said bore and in communication therewith, a U-shaped shackle having a relatively short leg slidably guided by one of said nipples and having a relatively long leg rotatablyand slidably guided by the other nipple of said pair, a pair of spaced pins at least in part insertible in said openings and one of said pins projecting into said bore to characterize stop means overhanging said bore, spaced bolt means pivotally mounted on said pins and having spaced lower limbs removably interlocked with the walls of said grooves and straddling and adapted .to be actuated by said web and having spaced upper limbs offset relative to said lower limbs and including laterally extending projections for interlocking with said keeper means, and spring means for urging said limbs towards said legs for interlocking with said keeper means.

9. In a padlock, a hollow casing having a bearing, a hollow boss within said casing and integral therewith and having a bore, key controlled means rotatably guided by said bearing and having tumbler means for removably interlocking with said bearing and including a web and having spaced grooves, a pair of spaced and hollow nipples extending from said casing and integral therewith, a pair of spaced sockets integral With and within said casing and each of said sockets having an opening and one -of said openings being substantially normal to said bore and in communication therewith, a shackle having a relatively short leg slidably guided by one of said ,nipples and having a relatively long leg rotatsaid grooves and straddling and adapted to be actuated by said web and having spaced upper limbs above said bearing and offset relative to ..7 saidlower limbs and including laterallyentendingfprojections Vfor disengageably interlocking with said keeper means, and spring: means for urging said 'limbs towards Vsaid legs for removably interlocking with saidkeeper means.

10. In a padlock, a casing having a front wall and a bearing within and integral With said casing and extending rearwardly of said wall and having a slot, said casing having a hollow rim provided withl a cutawaypportion, a shoulder within said casing and integral with said rim, a cover insertible within said rim and adapted to be seated on said shoulder and including a lip substantially complementary to said cutaway prtion, key controlled means rotatably guided in said bearing and including means disengageably interlocked with the wallsoi said slot, and means extending from said rim to anchorl said cover within said rim. f Y A s 11. In a padlock, a casing having a front wall and a bearing within and integral with said casing and extending rearwardly of said wall and having a slot, said casing having a hollow rim surrounding said bearing and provided with a cutaway portion, a shoulder within said casing and integral with said rim, a cover insertible within said rim and adapted to be seated on said shoulder and including a lip substantially cornplementary to said cutaway portion to interlock with the walls of the latter, key controlled means rotatably guided in'said bearing and including means disengageably interlocked with the walls of said slot, said cover having a recess for rotatably receiving said bearing, bolt means within said casing and actuated by said key controlled means, and a shackle movably associated with said casing and havnggkeeper means for remove vably interlockingwth Said bolt meansr;

12. In' apadlock, a casing having Ia front; wall and a' bearing vwithin and integral with said casing and extending-rearwardlyA of said wall and having a slot, said casing having aihollow rim surrounding said bearingand provided with a cutaway portion,- ashoulder Within said casing and integral with said rim, a shackle movably associated with said casing and having keeper means, a cover insertible within said rim and adapted to be seated on said shoulder and including a lip substantially complementaryto. said cutaway portion and receivable thereby, Va key receiving plug rotatably guided by said bearing and having spring controlled means removably interlocking lwith the walls 'of saidslot, sockets integral withv said bearing,` pin means projecting from said sockets, and bolt means pivotally sustained by said pinv means and actuatedby said plug and'having means for disengageably inter'- locking with said keeper means.

' JOHN HINES.

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

UNITED STATES PATENTS

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