US2000111A - Keyless lock mechanism - Google Patents

Description

May 7, 1935.

P. B. WEIS 2,000,111

KEYLESS LOCK MECHANISM Filed July 28,. 1933 2 Sheets-Sheet l May 7, 1935.

P. B. was

KEYLE'SS LOCK MECHANISM Filed Jul 8, 1955 2 Sheets-Sheet 2 fiZZ//dO/ fauz .5. Z0616 zzy/ z/ 0% tam locking Patented May 7,

UNITED STATES PATENr orF-ics KEYLESS LOCK Paul B. 'Weis, Aurora, 111., assignor to S. Eugene Miller, Aurora,'l1l.

Application July 28, 1933, Serial N03682g'603 4 Claims. (01- '70-58) H V ciated with the outer time taken substantially as This invention relates to locking devices and particularly to keyless or combination locks for closures, such as doors, or the like, and which may be released by manual manipulation of cerelements associated therewith.

One object of the present invention is to provide a structure wherein the rotation of aknob or other actuating member is controlled by looking elements mounted in the knob.

Another object of the invention is to provide a structure vwherein the locking elements and knob may be actuated by properly grasping the elements and knob with one hand.

Another object of knob is locked against the invention is to provide a structure wherein the inner tated to actuate the latch even though the knob may be roouter r-ota'tio Another object of the invention is to provide a structure 7 wherein the inner k-nob may be secured against rotation a manner to prevent movement of the latch although the locking elements in the outer knob may be manipulated to permit rotation thereof.

Another object of the invention is to secure the outer door authorized attempt to plate against removal in an unactuate the latch by persons without knowledge of the lock releasing combination.

A further object of a combination or keyless the combination may and as desired.

the invention is to provide lock structure wherein be readily changed when Astill further object of the invention is to improve devices of the character described in sundry details hereinafter referred to and particularly pointed o t in the appended claims.

One embodiment of the present invention is shown for illustrative purposes the accompanyi-ng drawings, in which Fig. l is a face view of the outer knob of a door illustrating the "application of my improved lock mechanism thereto,

and showing the locking elements in position to permit rotation of the knob to actuate the latch;

Fig. 2 is a face view of the inner knob of the door illustrating portionsof the lock mechanism associated therewith, and showing portions of the latch construction in dotted lines;

Fig. 3 is an enlarged sectional elevational view through the door and lock mechanism taken substantially as indicated by the lines 3-3 of Figs.

1 and 2;

Fig. 4 is an enlarge vational view through d transverse sectional elethe lock mechanism asso indicated by the line 4-4 of 3;

Fig. '5 is a persp active view of the associated with the outer knob of the user; and

c "and 1 are of different lock ems employed lock ctmstmction.

enlarged perspective views The illustrative embodiment or the present invehtion is shown, Figs. hand 3, in

mechanism indicated as a as illustrated particularly in conjunction with door latch whole by the numeral 1 l adapted to be'positioned in-a recess "formed in a closure member such as a door A, or the like;

and comprising a latch l2 and open yoke l3 therefor; slidably mounted'in a casing 14 having in which is spring H, the

the casing ll being yokei 3 with a recessed lug l 6 to engage a portion ofthe yoke 13in a manner to normaliyurgethe latch 42 into door securin position.

also withmthe yoke I3 is adouble dog or cam member 18 shown, "in thepresent instance, as keyed or spiined to an actuating member shown, in the present instance, as a square shaft I9 by which the cam member I! may be rotated to draw the latch 12 from door securing Secured to the means of screws 2 ition against t/heact' of the spring l1.

outer side of 'the door Afby I is a locking plate "22 having outer door plate 25to prevent'relative side or endwise movement o'tthe plates, the door plate 25 being secured to the door by means of screws apertures formed 26 passing through in the locking plate 22, and

being provided with a, flange 21 surrounding the plate in a irra nmar"to further prevent relative side orendwise movement or the plates.

Famed integrallywith the door plate 251s a spacing portion 18 annular-1y spaced formed on one side thereof and disc 2!, the disc 29 having aligned arcuate segments 3| and an arcuate groove 32 formed in said side adjacent the segments.

Mounted adjacent the disc 23 and adapted to be rotated with respect thereto is a knob indicated as a whole by the numeral 33 having an annularly recessed portion 3! and an annular flange 35 in which is formed a. plurality of annularly spaced notches being provided being adapted to of annularly some 36, with a plurality of notches '31 terminating in pockets 38, the notches the hub portion of the knob as and '31 receive and guide a plurality ed radially slidable manually locking disc .5 in my improved therein adapted to receive v arrangement, it will be noted that actuated lock pins designated by the numerals 39 to 46, inclusiv the pins being engaged by springs 41 positioned, respectively, in the pockets 38 for urging the lock pins, normally, in an outward direction, each of the pins being provided with stop lugs 49 adapted to move in the recess 34 and engage the flanged portion 35 of the knob in a manner to limit their outward movement.

Each of the lock pins are provided with transversely' extending slots or recesses 49 formed in one side thereof adjacent the disc'29, and it will be noted by reference to Figs. 1, 3, 4, 6 and '7 that certain of the pins as, for example, 39, 43, 44 and 46 have their grooves 49 positioned .closer .to their inner ends than are the grooves. 49 formed in the pins 49, 4|, 42 and 45, and that, normally, the grooves 49 formed in the pins 39, 43, '44 and 46 occupy a position in annular alignment with the segments 3| formed on the disc 29, while the grooves 49 formed in the pins 49, 4| '42 and 45 are normallyout of alignment with the segments 3| as clearly shown inFig. 4. By such an the pins 49, 4|, 42 and 45 mounted in the notches 36 and 3'! of the knob 33 are positioned with a portion of their body locatedbetweencertain of the segments 3| of the disc 29, thereby locking the knob 33 against relative; rotary movement with respect-to the disc. It will be noted also thatby pressing the pins 49, 4|, 42 and 45 inwardly against the. action .ofthe springs. 41 as shown in Fig. l the grooves 49 of these pins may be brought into alignment with the segments 3|, thereby permitting the knob 33 to-be rotated with respect to the disc 29, it being understood that the grooves 49 of the pins 39,43, 44 and- 46 are normally in alignment with the-segments 3| and therefore, these last mentioned pins willoffer no resistance to the rotation of the. knob 33. v It will be noted that the lockpins' 39 to 46, inclusive, are of substantially similarconstruction, particularly in cross section, and are interchangeable, and that by changing the positions of the respective lock pins, various diiferent combinations may bev obtainedby which the device may be operated. I

Rotatablymounted in bearings formed in the disc 29 and door plate 25 is a shank portion formed on the knob .23 and provided on its inner end with a spanner nut52 adapted to bear against a shoulder onthe-shank portion 5|- and against the inner faceof the plate 25 to secure the knob against axial endwis movement v n'th respect to the spacing portion 28' and'disc 29.

Formed in the shank portion 5| is an axially disposed recess 53 adaptedto receive one end of the shaft I9, and formed in the shank portion 5| adjacent the recess are radially disposed elongated annularly extending slots;54 adapted to receive opposite ends of a pin 55'mounted in the adjacent end of the shaftlQ. 3; Itwill be observed from the foregoing description that by pressing the lock pins 49, 4|, 42; and 45 inwardly as shown in Fig. :1, the knob 33 may be rotated in the direction indicated by the direction arrows of Figs. 1- and 4, andthatthe engagement of the shank portion 5| of the knob 3 3'at one end of the slots 54 withthe pin 55, as shown in Fig. 4, will rotate the shaft l9 and cam member 8 in a manner towithdraw. the latch ll-from its socket and permit the door. to beopened, and upon releasing the knob, the spring 11 will move the latch to its extended position, and restore the cam member l8, shaft .19 andknob 33to'their initial or-normal position, atwhich time the pins or endwise movement with 49, 4| 42 and 45 are brought into registry with their respective spaces between the segments 3| of the disc 29 and the springs 47 will move pins 49, 4| 42 and 45 outwardly into locking position as shown in Fig. 4, thereby securing the knob 33 against movement until the pins 49, 4|, 42 and 45 are again depressed, the rotary movement of the knob in both directions being limited by a pin 56 mounted in the knob and extending into the arouate groove 3Zformed in the disc 29.

Secured to the inner or opposite end of the shaft J9 by means of a nut and washer 5?, and in a manner to rotate therewith, is an inner knob 58 having a bearing portion 59 rotatably mounted in an opening 66 formed in an inner door plate 6| secured to the inner side of the door A by means of screws 62, the knob 56 being held against axial respect to the plate 6| secured to the portion and a flange 64 on by means of a washer 63 59 on one side of the plate 6| the opposite side of the plate. It will'be observed from the arrangement just described that owing to the elongated arcuate form of the slots 54 formed in the shank portion 5| of the knob 33, the inner knob 58 may be rotated to actuate the latch operating cam member l8 even though the lock pins 49, 4| 42 and 45 may be in outer knob-locking position, the slot and pin arrangement 54-55 being such as to permit rotation of the inner knob 58 and shaft |9 without interference by the locked condition of the outer knob 33, thereby permitting the door to be readily opened from the inside.

, For securing the latch 2 against operation even though the lock pins 49, 4|, 42 and 45 are properly positioned to permit rotation of the outer knob 33, the flange 64 of the inner knob 58 is provided with arecess 65, and slidably mounted in the inner door plate 6| is a bolt member 66 having a stud 61 mounted thereon adapted to be moved into the recess 65 of the flange 64,.thereby securing the flange 64, inner knob 58 and shaft 9 against rotation. Mounted on the boltmember 66 is a finger piece .68 extending through a slot 69 formed in the door plate 6|, the finger piece 68 being surrounded by a washer 1| and having a spring 12 adapted to urge the washer the face of the plate 6| to provide a frictional engagement therewith for maintaining the stud 61 in raised position and in engagement with the recess 65 of the flange 64.

It will be observed from the foregoing description that the present invention provides a'keyless lock which may be actuated from the outside only by manipulating certain of. the lock pins, and that the outer door plate 25 is secured against removal or other tampering even though its holding screws 26 may be removed. Also, that the inner knob 58 may be rotated even though the lock pins are in looking position, and that the inner knob and latch operating cam member l8 may be secured against movement even though the lock pins are manipulated to permit rotation of the outer knob '33. It will be observed also that various combinations may be obtained by merely changing the positions of the various locking pins 39 to 46, inclusive, with respect to the disc 29 and knob 33. Obviously, the present invention is not limited to the precise construction and arrangement shown and described as the same may be variously. modified. Moreover, all the features of the invention need not be used conjointly as the same may be used to advantage-in variously different combinations and sub-combinations.

7| against,

What I claim as new and desire to cover by Letters Patent is:

1. In a keyless lock, the combination with a closure member and latch therefor, of a locking plate secured to said member, a cover plate adapted to cover said locking plate and having means engageable with the locking plate to prevent relative movement of said plates, a disc formed integrally with said cover plate, a knob rotatably mounted with respect to said disc, manually actuated locking means operatively related to said knob and disc for preventing relative movement thereof, a shaft connected to said knob and latch, and means for securing said shaft and knob against endwise movement with respect to said member.

2. In a keyless lock, the combination with a closure member and latch therefor, of a, locking plate having apertures formed therein secured to said member, a cover plate adaptedto cover said locking plate and having studs engageable with said apertures to prevent relative movement of said plates, a disc formed integrally with said cover plate, a knob rotatably mounted with respect to said disc, manually actuated locking pins carried by said knob and engageable with portions of said disc for preventing relative movement of said knob and disc, a shaft connected to said knob and latch, and means for securing said shaft and knob against endwise movement with respect to said member and cover plate.

3. In a keyless lock, the combination with a closure member and latch therefor, of a locking plate having apertures formed therein secured to one side of saidmember, a cover plate having a flange and adapted to cover said locking plate, said cover plate having studs engageable with said apertures to prevent relative movement of said plates, a disc formed integrally with said cover plate, a knob rotatably mounted with respect to said disc, locldng pins slidably mounted in said knob and engageable with portions of said disc for preventing relative movement of said knob and disc, said pins being manually actuated to permit said knob to be moved relatively to said disc, a shaft connected to said knob and latch, and means connected to said shaft on the opposite side of said closure member for securing the shaft and knob against endwise movement with respect to said member and plates.

4. In akeyless lock, the combination with a door and latch therefor, of a locking plate secured to the outer side of said door, a door plate adapted to cover said locking plate and having means engageable with the locking plate for preventing relative movement of said plates, a disc formed integrally with said door plate, an outer knob adjacentsaid disc, a plurality of locking pins slidably mounted in said knob and engageable with portions of said disc for preventing relative move--' ment of the knob and disc, said pins being manually actuated to permit said knob to be moved relatively to said disc, a hollow shank portion on said knob rotatably mounted in said door plate and disc and having a radially disposed annularly extending slot formed therein, a shaft operatively related to said latch, a pin carried'by said shaft and extending into said slot, and an inner knob secured to the inner end of said shaft and rotatable therewith.

PAUL B. WEIS.

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