US2333584A - Closure lock - Google Patents

Description

Nav. 2,V 1943. R. w. Rossana cLosURE LOCK Filed May 14, 1942 Patented Nov. 2, 1943 UNITED STATES PATENT OFFICE oLosUnE Lock Rudolph W. Rosberg, Chicago, Ill. Application May 14,1942, serial'No. 442,921

1 claim. (C1. ila- 211i This invention relates to improvements in a door lock, and refers specically to a combination padlock and keeper bar which may be se-Y cured to the door, such as a door handle or the like, or may be securedadjaeentthe door, on the door frame, for instance,l and bemovable across the path inwhich the door swings.

The objects and advantagesof my invention will be apparent from the accompanying draw-l ing and following detailed description.

In the drawing, Fig. 1 is a rear view of an automobile, illustrating my invention in conjunction with the trunk door of an automobile trunk.

Fig. 2 is a sectional view taken on line 2-'2 of Fig. 1.

Fig. 3 is a sectional view taken on the line 3 3 of Fig. 2.

Fig. 4 is a sectional viewy taken on the line 4 4 oiFig.3.

Although for purposes of description my invention is illustrated in conjunction with an automobile trunk door, it is to be understood that it can be employed in conjunction with any type of door or movable closure. 1

Referring in detail to thedrawing, I indicates a conventional automobile` havingv the usualbuilt-in trunkV carried at the rear of thevehicIe, the trunk being provided with a swingable door 2. The door 2 carries-the'usual trunk door lock 3 which comprises a lock body structure 4 which is inserted in the trunk door.`- The body 4 carries a handle 5 in the spindle of which a conventional tumbler mechanism-Sis mounted.

This type of trunk handle andlock is con.

ventional and with slight modifications is standard upon substantially' all automobiles. ever, this type of lock, although convenient and of goodV appearance is not very eiective as la locking agency. It is a, very simplematter, when the lock is locke-d, for a thief totelescopically slide a pipe or the likeA along'the handle 5 yandwith the increased leverage thus afforded, turn the handle 5 and strip or shear the retaining mechanism, usually a comparatively small. pin, in the lock. Aswill be hereinafter more fully appreciated by employing my lock structure in combination with the handle 5, this practice is effectively prevented.

My lock structure, designated in its entirety as 1, is adapted to be positioned upon the trunk door 2 adjacent the conventional lock 3. The lock structure I comprises essentially two body portions 8 and 9 and a U-shaped retaining member III. The body portions maybe secured together and secured to the wall II of the trunk door 2 How-- by means of bolts I2 which are preferably of the carriage bolt type having Yplain or unslotted headsv I3 and having that portion of the shank adjacent Ythe h ead oi square cross-section whereby said bolts will not turn, when nuts I4 are tight-v ened upon the bolts I2 adjacent the inner face of theY wall I I.Y vThe -construction is such that it can only be removed .from the trunk `door when the sameis open. Y

The ybody portion9 is provided with two spaced transverse apertures I5 and I6 and corresponding apertures I1 and I8 are provided in the body portionS for theslidable reception of the two armsof the` U-shapedretaining member Ill. i The body portion 9 is additionally provided withan aperture I9 which is adapted to receive the barrel 20 of.. a-.conventional-type tumbler lock which is adapted to be operated by key 2 I.

A bar 22, provided with threeslots, 23, 24 and 25, is slidably mounted upon Vthe inner face of the body portion 9, said bar Abeingretained upon the .member 9 by means of screw 26, the shank of whiohpasses through slot' 24. An elongated plate 2l, having an upturned lug 28 and a forked opposite end is positionedupon bar 22 and is rigidly anchored to member 9 by lmeans of the screw 26. An upstanding pin 29.is carried upon bar 22 and is positioned between the arms oi the forked end ofthe plate 2l. A coil spring 30 is anchored at opposite ends. to lug 28.. and pin 29 and normally urges bar 22 to thev left (Fig. 2). i

Eachl arm of theUI-shaped retaining member I0 is provided with a, notch SI' which Vis defined ICY-tapered walls .on one: side and flat walls on the other side vin ratchet-fashion. notches are disposedv in alignment with the plane of the bar 22, said bar, unless otherwise restrained as will be hereinafter'more fully described,A will so moveunder .the influence of spring 39 so'as to engage'the Vdefining edges of the slots 23 and 25 in the no tches 3|, as illustrated in Fig. 2. .In this position the U-shaped member` It) may be moved inwardly with respect to the trunk compartment but cannot be moved outwardly beyondithe position where the bar 22 engagesY the'notches 3l.

. A cam plate 32 is securedto the rotatable portion' of the lockl 20 by means of screw'. 33'and is adapted to be rotatedby rotation 'of the key 2|. The cam plate is substantially oval in shape and is adapted, when the major axis' of the oval'is. coincident with the longitudinal aXis ofthe ,ba'r- 22, to move said bar in opposition to thetensionV of spring 30 and thereby move saidibarsoas'to disengage the same iromithe notches 23 and 25. Rotation of the key 2| which positions the When the cam plate with its minor axis coincident with the axis of the bar 22 permits the bar to be movable under the influence of spring 30 until the dening edges of the slots 23 and 25 abut the arms of the U-shaped member.

The U-shaped retaining member comprises an arm 34 which is adapted to enter apertures I5 and I8, and an arm 35 which is adapted to enter apertures I5 and I1. An extension 35 is pivotally connected, as at 3l, to the enelv of arm 35 permitting arms 34 and 35 to be completely retracted from both pairs of apertures I6 and I8 and I5 and Il. When this condition occurs, as will be hereinafter more fully described, the extension 36 will still be retained in the apertures I5 and Il, as shown best in dotted lines in Figs. 2 and 3.

A sleeve 38 is positioned in aperture IT and extends inwardly from the body portion l and through the wall II of the trunk door 2. Interiorly of the wall portion II, the sleeve 38 is provided with a longitudinal slot 39. and adjacent the inner face of thewall I I, said slot extends transversely throughout approximately onehalf the diameter of the sleeve, as shown best at 4.0. in Fig. 2.-. A pin, el. is carried 'adjacent the endof the extension 35 and projects transversely out-` wardly therefrom, said pin being adapted tcrmove in slot 39, when the. ufshaped member is moved outwardly or inwardly, pin 4I b eing further adapted to prevent undue rotation of the. extension during. a major portion of its longitudinal. movement. Adjacent. slot lili, however, the extension may be rotated throughout substantially 180 but at this portion oftravel; ofthe U-shaped member, furtheroutward movement isv prevented by pin 4I.

In the use of my invention herein specifically; described, the loch structure 'l is mounted upon the trunk door 2 immediately beneath the conventional trunk door` lock.V 3- In thistype of trunlrdoor loci; the trunk door may be locked. thereby turning. the; handle downwardly and by. means ci aA key (not shown) turning: thetumbler 6. to.locking positiom The lock structure. I is so., disposed with respect tothe lockv structure 3, that when the handle 5 is in locked position. It will extend through the center of; the loop. formed by the U.shaped. member IIL..

To. accommodate the.r movement of thehandle 5 toV locking position, the lockl 'I maybeimlo'cked thus moving the bar 22 toa position. wherein the.. notches 3 I,y are not engageable with, the. bar. The U..shaped member may then, be moved outwardly to the. position shown in. dotted lines in 2 wherein the end of thearm 34 leaves the aper-. ture vI6 and the pivot. 31 is` moved exteriorly or the body member 9. In this position the pin 4I will abut the inner face yof the wall II yand, will prevent the complete removal of theextension 36 from the lock body. The Ufshaped member may then be swung about the pivot 3T. thereby providing room for the handle 5. to be moved to locking. position.

To lock thehandle. the. reverse `procedure is followed and the u-shaped member is moved inwardly with the loopiembracing` the handle. 5, the tumbler of lochy 2B being previously rotated toy permit the dening edges of the slots 23 and, 25,

to bear against the arms 3G and 35V until said edges move into notches 3Il. under the, influence of. spring 30. In this position the. swingable movement ofthe handle is restricted by the.. loop In view of the fact,

that there is insuflicientspacebetween the hanf.

of the U-.shaped member.

dle and the arms of the U-shaped member to turn the handle until its play is taken up, 'it is substantially impossible to shear the locking mechanism of the lock 3.

It is to be understood that the door 2 may contemplate substantially any type of swingable door or closure, such as, a refrigerator door, the usual house door, truck or railroad car door or other type of hinged closure which is provided with a handle which swings in. a plane substantially parallel to the plane of the closure.

In addition, my invention contemplates the mounting of the lock structure 'I upon the door frame adjacent the door where the swingable door handle may protrude beyond the edge of the door. Further, my invention also contemplates the arrangement wherein a swingable bar, which swings in a plane substantially parallel to the plane of the door or closure and wherein the lock structure 'I is carried upon the door or closure and wherein theA swineable bar protrudes beyond the edge of, the door, t0. a. position erieageable with the loop: 0f. the: Ur-shaped member.

@ne of; the .imminent features 0f. my 1001i` struc.: ture 'I in any of the combinations hereinbee fore described resides in the substantially uni. versal movement of the loopv or the U-shaped member; Whh, permits: its use numerous cramped relationsl1110s-A with a swineable baro1: handle the position of which. latter may leave little space for engagement. Anotherimportant feature of my loot;4 structure resides in the fact that itv is Substantially Seli-contained and may be added. to existing SWi-.sable homlle installations such as found on present day motor trunks without altering or changing the operation of the existing handle.

I claim as my invention:

In a lock for use with a swingable closure pro. vided with alatch and a handle swingably mounted upon said. closuretov operate thelatch,l said loclgy being adapted for mounting upon the sur-5 f ace of saidI Closure adjacent the path of movement of said handle and comprising a body, a

, U-.shaped mem-ber kslid-ably positioned in said providing a guide support for the extension and.

portion o; said. one.r arm, said sleeve having` ay 101i-, gitudinally entending,V slot and; a, transverse slot intersecting the. longitudinal slot adjacent said: bodfv, @ed a ein. @n theffree end 0fY said me arm; disposed: inlbsaid: slots whereby said longitudinal, slot and. seid 13111.,.Serve. t0t confine said U-shaped member formovementin a, dgirectionperpendieu.- lar to the closure tor 'a predeterrninedy distance until. the pin regis-ters with. the .transverse slot at which position saidvmember is permittedtobe rotated-about the pivot connection of; one armi and extension .i0 .dispose the other; arm out of the path of swinging movement of thehanclle.

to permit movement Qi. the latter, and member together with the. extension, in soph position oi adjustment alsobeing rotatable about the axis ofthe extension.; K

RUDQLPH- W.. ROSBERG.

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