US1858804A - Door-securing mechanism - Google Patents

Description

May 17, 1932. E. H. CARLSON DOOR SECURING MECHANISM Filed Jari. 12, 1931 2 sheets-sheet 1 o Wm@ n@ AH wm @mw MMM, 20mg V May 17, 1932. E H* CARLSONA 1,858,8044

DOOR SECURING MECHANISM Filed Jan. 12, 1931 2 sheets-sheet 2 E m4 ,M m @MJA L@ l vment of the type set forth comprising a lock Patented May 17, 1932 sra EVOLD H. CARLSON, 0F CHICAGQ ILLINOIS DOOR-SECURING NEEVCHANISMI 'Ap'puuon inea January 12, 1981. serial No. 508,166.

" M-yinvention relates todoor securing mechanisms and is directed towards providingan arrangement of this character lwhich is more particiilarlyA intendedfor garage doors, although the essential conception is readily applicablein other surroundings. i

One object otrny intention is to devise a door securing v'mechanism comprising bolt bars which may be loclied in securing position against unauthorized openings from one side of the door and releasedfrom the same side, or independently released on the: opposite side of the door'for retraction to an unlocking position, regardless of whether or not the locking means has been neutralized.

'A further object is to provide a securing mechanism of V'the character indicated in which thefbolt'bars are provided with a pair of independently bperable, actuating levers locatedonopposite'sides of the door and associated with a singleflocking means, 'the latter being'releasable from eitherside of thedoor.v

A. .further Vobject is Vtodevise an arrange,-

mechanisn'i and bolt bars operatively assos ciated therewith for securing the" door in locked position, the tumbler of the lock mechanism under locking conditions being Aconnected to ,the barsl tofprevent ltheir retraction and capacitated for release afkey or equivalent actuation of the lock mechanism from one side of the door andby a simple cam bar from the,` opposite side'.v e

A further'objectis to provide a door securing: mechanism having a: lock'which may be .rendered whollylinoperativeby devices actuable fromone side of the door and maintained in thisV 'condition for such time as may be desired.,` n.

Anfurther` Objectis to devise a securing mechanism for doors in which the bolt bars are normally extended' for engagement with recesses. in the door frame and Vprevented from beingfret'ractied by a lock whose tumbler may be released from either side of the door.

The present invention embodies particular advantageswhen utilized in connection with garagefdoorsffaslit permits the door to be securely locked against. unauthorized Lopenings from one side thereof, while permitting their free opening from the opposite side, independent of the locking mechanism, in the event that access is had to the interior of the garage by doors other than the door in question. ,lt also permits the` locking mechanism to be neutralized for such time as may be desired with the result that the .bolt Ysecuring means may be releasable from either side of the door, a factor which is of prime impor-` tance in garages of the public type. The releasing levers for the securing bolts are so disposed on opposite sidesof the door that the mside lever may be operated wholly independently of the outside lever, so that the lock' mechanism need not be disturbed in the event that the securing bolts are withdrawn from within the garage.

These and further objects of my invention will be set forth inthe following specification,`reference being had to the accompany-A ing drawings, and the novelmeans by which said objects are eectuated will be definitely pointedl out in the claims.

In the drawings :V n Figure l is a partial elevationot' th'e.interior side of a garage door andV showing the securing bolts in extended or locking position, the'particular door shown being of the Vup-` wardly sliding type, although the particular kind of door does not `form any part of the present invention. .4

Fig. 2 is an enlarged elevation of the rear side of the locking and releasing mechanism, as viewed in Fig. 1. Y Fig.` 3 is a view similar to Fig 2, the interior releasinglever and the disk which vestablishes connection therewith and the. eX-

terior releasing lever being removed tol show certain internal parts. 1

` Fig. 4 is ank enlarged view, partly in'l section, showing one of the boltsecuring means in Veno'agernent with 'the frame of the door.

Fig. 5 is a section along the line 5 5 in Fig. 2, looking in the direction of the arrows, and showing the internal construction of the' locking mechanism and its association with the releasing levers for' the bolts. Fig. 6 is a section along the line 6- 6 inV 5, looking in the direction of the arrows, and showing the relation between the rock shaft which extends through the door and the member which establishes ccnnection therebetween and the interior releasing lever.

Figs. V7 and 8 are sections along the line V7--7 in Fig, 5, looking in the direction of the arrows and showing, respectively, the

positions assumed by the tumbler of the lock mechanism in locking and releasing posi naturethereof .forms no part of the present invention.` SaidV door slidable within a door frame 11 and is retained in closed position'by means of a pair of oppositely dispos-ed bolts 12 which are slidably mounted in casings 13 attached to the inner side of thedoor and whose outer ends project with j in recesses 14formcd in the door frame 11.

The inner ends of said bolts are pivotally connected by means of links 18 to the opposite ends of arlever 19 having` a handle portion 20. Said lever is preferably located centrally of the door 10 and isloosely carriedon the reduced, threaded end 21 of a rock shaft 22 which projects entirely through the thicknesstof the door as hereinafter described. The lever 19 is therefore free to ,independently actuate the bolts 12 and is retained in the position indicated by means of adjusting and lock nuts 24 and 25, respectively, which set said lever against a .separating washer 26, the latter in turn contracting'with therear surface of a flanged, or cup-shaped, disk 27 fixedly mounted on the reduced portion 2l, the latter beingpro-Y vided'with a pair of opposit'ely disposed, flat surfaces 23 (see Fig. 6).. 1

. The rock shaft 22 is jo'urnaled in a plate 28 which isaflixed to the rear side of thedoor 10 and also in a plate 29 which secured to l the outside of said door, said shaft projecting entirely through said last named plate to receive Von the end Ythereof av second releasing lever 30. From the description of the several parts as notedy above. it will'be understood that an actuation ofthe releasing lever y#-lOywill impart "a motion of rotation to the' disk 27, the flanged portion of which extends towardv theinside surfaceJof the doer. but will not'exercise any effect on the other re leasing lever 19V through the shaft `22 directly.A y y Beneath the shaft 22` a flange 31 projects rearwardlyfrein `the plate 28 for reception fwithin a slot formed in ar disk 33r which is-al'sefast onthe sliaft22 by reason of the flat surfaces formed on the latter, said disk being located within the flanged disk 27. In the operation of the mechanism, the end walls 34, 34 of the slot 32 engage the flange31 and thus determine the limits of movement of the lever 30, thereby preventing undue strain on the several parts, since a person operating the lever 3.0 would otherwise be unable to ascertain when the boltsv 12 were suliic'iently retracted to free the door for movement. p

Above the. shaft 22, a casing 35 is secured to the rear side of the plate 28 to thereby form a pocket 36 which opens upwardly and within which is slidably mounted a tumbler in the form of a plate 37. In the locking posi tionV of the. door,- the tumbler 37 projects through 'a slot 38 formed in the flanged poi. tion of the disk 27 and is atalll times subjected `.to the pressure Aexerted by a pair of springs 39 whose lower ends abut against the bottom` of the pocket36 with the opposite ends encircling centering pins40 which pro- -ject downwardly from the underside of fthe tumbler 37. i f y A slot 41. is cut partly across the width of the tumbler 37 andV the walls of said slot are engaged byv a crank pin 42 which. is carried by a disk 43v mounted on'V the inner end of a stem 44 whose forward end is-connected to a convenient type of lock mechanism which viS designated generally by the numeral 45 (see Fig. 5.). The internal construction lof' the i lock mechanism 45. forms no part of thepres.- ent invention, but however constructed, it is` contemplated that it will bc connectediinv some 100 manner tothe forward end of the stem '4 4' such that when the key 46 manipulates said lock mechanism in vthe usual mannerit will imparta motion of rotationto the stem 44 and consequently a reciproca-tory movement. toA 105 thetumbler 37, motion inv a counterclockwise direction, as viewed Vin Fig. 7 moving said tumbler downwardly until it has completely cleared the walls of the slot 38, thereby freeing the disk. 27'for rotation. This latter po- 1h10 sitioii is shown in Fig. 8. The disk 43 seats. against an offset portion 47 of the plate y28 and the latter is fitted Within a convenient recess 48 cut into the thickness of the door.

. It is frequently desirable to neutralize the lili` lockingk mechanism from the inside of thel y door to thefend that. the outside releasing. lever maybe employed to open the'door with out the necessity fo'rusing a key. This purV pose is fulfilled by a cam` bar 49 having a 120 flange 50.*at one end'thereof vsuitable for nger enga-gementand which projects through an openingl formed` inthe flanged portion l of the disk 27, for slidable mounting betweenk a'l plurality of pins 52 which project rearwardly from the plate 28. The bar 49 is re-y tained in position. against saidl plate by means, of aheaded pin 53 which passes through@an elongated. slot 54 formed in the cam bar 49. The actuating endfof the cam bar 49 is pro- 139 vided with aninclined surface 55 and beyond said surface, a finger 56 projects through an opening 57 provided in one wall of the casing 85. The width of the opening 57 issufficient to permit the free movement of the caln bar'49 and when this movement occurs, a movement toward the left is Aviewed in Fig. 7 ,the inclined surface 55 engages the lower wall of the slot 41 to thereby move the tumbler `37 into the unlocking position shown inF ig. V9, it being understood that the slot 41 possesses sufficient width to Apermit this unlocking movement under the actuation of the cam. bar 49 without binding on the crank pin 42, or on said cam bar. When the cam bar 49 is returned to the position shown in Fig. 7, the springs 39 will restore the tumbler 37 to locking position, providedthe slot 38 of the disk 27 is in registering position.

As before stated, the only connection between the lever 19 andthe bolts 12 is by means of the links 18 and said links are also utilized as instrumentalities to establish an operative connection between the external releasing lever 30 and said bolts. For this purpose a pair of ears 58, 58 project rearwardly from the surface of the disk 27, being located on opposite sides of the lever 19 and spaced sufficiently therefrom to permit a free and independent movement of the lever 19 from the inside of the door, regardless of whether or not the tumbler 37 is in locking engagement with the disk 27. -However, when said tumbler is in a retracted, or unlocking position, as shown in Figs. 8 and 9, the lever 30 may be moved to thereby rotate the disk 27 in a clockwise direction, as viewed in Figs. 2 and 7, and to accordingly engage the ears 58 with the lever 19, thus transmitting said actuating movement through the lever 19 and links 18 to the bolts 12.

By the use of my improved door securing mechanism, it is therefore possible, assuming the tumber 37 to be in a retracted position, to release the bolt means from either side of the door, or to release the bolt from the inside by means of the lever 19 regardless of whether or not said tumbler is in a retracted position. The door may therefore be opened from the inside, assuming a locked condition of the same, without the necessity for first releasing the locking vmechanism by means of the key 46 from the outside. The capacity for neutralizing the lock mechanism b v means of the cam bar 49 is of particular advantage in garages of all types, since the door 10 may be entirely closed with the bolts 12 extended into the recesses 14, without af fecting the capacity of the door to be opened from either side thereof.

While I have shown one set of elements and combinations thereof for eifectuating my improved door securing mechanism, it will be understood that the same 1s intended for purpose of illustratlon only and m no wise to restrict my device to the exact forms` and structures shown, for many changes may be made .therein without departing from the Spirit of my invention.

I claim: i

in combination, a door, bolt securing means on said door for retaining thesamein a closed position, releasing means on one side of said door, locking means on the same side of the 1. rA door 'securing mechanism comprising door for preventing unauthorized actuation said releasing means for preventing unauthorized actuation of the same, a second, independently operable releasing means on the opposite side of said door, said first release ing means being connectible to said boltmeans through said `second releasing means, and a member on said opposite side of the door movable to retract said tumbler from engaging position whereby said locking means is neutralized and said first releasing means is freed for actuation.

3. A door securing mechanismfcomprising in combination, a door, bolt securing means on said door for retaining the same in closed position, a shaft extending through said door, a handle fixed to said shaft on one side of said door, a second'handle loose on said shafton the opposite side of said door, a first connection between said second handle and bolt means, a. second connection between said shaftV and second handle,'a lock mechanism key controlled from `the first handle side of said door and having a tumbler for preventing actuation of said second connection,`and means for releasing said tumbler independently of said lock mechanism. i

' 4. A door securing mechanism comprising in combination, a door, bolt securing means on saidA door for retaining the same ina closed position, a shaft extending through said door, a handle fixed to said shaft on one side of said door, a second handleloose'von said shaft on the opposite side ofl said door, a first connection between said second handle-and bolt means, a second connection between said shaft and second handle, said second connection 'permittingv the free and independent actuation of said second handle, a lockmecha-V nism-key controlled from the first handle side releasing 99 door comprising a tumbler engageable with of `said door and having a tumbler for .pre venting 4actuation of said second connection, and means for releasing said tumbler independently of said lock mechanism.

' means on said disk for engaging said second handle When rotated through a certain range of movement, a lock mechanism kkey controlled from the first handle side of said door 4and having a tumbler for preventing actuationof said disk, and means on the second handle side of said door for releasing said tumbler independently of said lock mechanism.

6. A door securing mechanism `comprising in combination, a door, bolt securing means on said door for retaining vthe same incl'osed Y position,'a shaft extending through said door,

a handle fixed to said shaft on one side of said door, .a second handle loose on said shaft on the opposite side of said door, connections between said second khandle and bolt means,

a flanged disk fixed on said shaft, ears formed on said disk for engaging said second handle When rotated througha certain vrange ofr movement, a lock mechanisinkey controlled from the firsthandle side of said door and Y having a tumbler for preventingactuation of tion of said disk, anda cam jbar for releasing said disk, and means onV the second handle second lever, locking meansl for said first" releasing lever, .and means for 4nentralizin'f'g saidflockin'g meansA from elthe'r sideof the door.

9. A door securing `mechanism comprising in combination, door, bolt securing -means on said door for-retainingthe same in closed position, .a shaft extending through said door, a handle fixed tosaid shaft'on fone sideofvsaid door, a second :handle loose on said shaft on the yopposite side vof saidv door, a first'connection between said -second handle and bolt means, a second connection between said shaft and second handle, locking mechanism comprising av tumbler for preventing actuation of saidV second connection, I and means for controllingl theA positionv of said tumbler from either side ofthe door'.y

In testimony whereof I have subscribed'm'y naine. Y

EVOLD H. CARLSONn A side of said door for releasing said tumbler v y independentlyT of said lock mechanism.

7. A door securing ymechanism comprising in combination, a door, bolt lsecuring means on said door for retaining the same in a closed position, a shaft extending Vthrough said door, a handle fixed to said shaft on one side of said door, a secondV handle loose on said shaft on the opposite side of ysaid door,

A connections between said second handle and bolt means, a flanged disk fixed on said shaft,

means on -said disk for engaging said secondl handle when rotated through a certain range ofr movement, lock mechanism key controlled from the'first handle side-of said door and having a tumbler for preventing actua# I said tumbler independently of' said lock mechanism located on the second handle side of vsaid jdoor.L y

'8. Azdoor securing mechanismcomprising in combination, adoor, bolt securing means on said ldoor for retainingthesame in a closed position, la releasing lever on one side f of sai-dfdoor, a second,independently` operable, releasing lever on the opposite vside-'of said door, .saidf first releasingnl'ever being connected to said bolt means through said .ics

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