US2584088A

US2584088A - Door lock

Info

Publication number: US2584088A
Application number: US121721A
Authority: US
Inventors: Floyd William
Original assignee: Individual
Current assignee: Individual
Priority date: 1949-10-17
Filing date: 1949-10-17
Publication date: 1952-01-29
Anticipated expiration: 1969-01-29

Description

Jan. 29, 1952 w. FLOYD 2,584,088

DOOR LOCK Filed Oct. 17, 1949 4 Sheets-Sheet l IZ E r ilig ig /42 128 I06 I08 Inventor Will/am Floyd WWW 8% W. FLOYD DOOR LOCK Jan. 29, 1952 4 Sheets-Sheet 2 may? I l /24 /22 I32 24 Filed Oct. 17, 1949 m w d 9 y 0 n H -m M .H m %M Jan. 29, 1952 w. FLOYD 2,534,038

DOOR LOCK Filed Oct. 17, 1949 4 Sheets-Sheet a Fig. 4.

Inventor Will/an Floyd By @Mm WWW Jan. 29, 1952 w. FLOYD 2,584,088

DOOR LOCK Filed Oct. 17, 1949 4 Sheets-Sheet 4 I rwentor William Floyd WW 29m Patented Jan. 29, 1952 UNITED STATES PATENT OFFICE DO O K William Floyd, New York, N. Y.

Application October 17, 1949, Serial No, 121,721

4 Claims.

This invention comprises novel and useful improvements in a door lock and more specifically pertains to a mechanism for simultaneously latching a door at a plurality of points, which mechanism is combined with a door latch,

The principal object of this invention resides in providing an improved construction of mechanisrn for securely latching a door at a plurality oi points about its edges; in providing improved mechanism for imparting straight line motion to each of the locking bars or latches; in providing a compact centrally disposed control mechanism for simultaneously operating all of the latching means; in compactly combining the latch control means with the customary door knob and its latch; in providing a locking mechanism which may be readily applied to existing types of doors and door jambs.

Further important objects of the invention reside in providing an improved locking mechanism for a door which shall greatly improve the security of the door fastening means, by Simultaneously locking the door at a plurality of spaced points about its periphery under the control of a single locking and unlocking mechanism.

These, together with various ancillary objects or" the invention which will later become apparent as the following description proceeds, are attained by this device, a preferred embodiment of only in the attached drawings, wherein;

Figure l is a front elevational view, taken from the inside 01 a door, showing the manner of applying the invention to a door and door jamb, certain concealed parts being indicated by dotted lines;

Figure 2 is a front elevational view of the leading or opening edge of the door showin the mechanism applied thereto;

Figure 3 is a front elevational view of the door jamb showing the latch retainers applied thereto in accordance with this invention;

Figure 4 is a vertical transverse sectional view through a portion of a door and the locking me h nism a i d t er Figure 5 is a vertical longitudinal sectional view showing the interior mechanism of the locking means and this taken upon the plane of the section line 55 of Figure 4;

Figure 6 is an exploded perspective View showing in disassembled position the various component parts contained within the housing of the lockin me ha sm;

Figure '7 is a detail view in vertical section, taken upon the plane of the section line l ,-l of 2 Fi u e owin he sp n me ns fo biasin t e o i g h nism int s o kin and e: l asing pos t o A Figure 8 is a vertical transverse sectional View taken through one of the latch means in the iront edge of the door;

Figure 9 is a side elevational view of the latch,- ing means shown in Figure ,8, the cover plate thereof being removed;

Figur 10 is an xp d d p r pecti e view of one of the latches, its operating pinion and crank;

Figure ll isan ass mb y Pers t ve i w show? i g a portion, at t ear'edse '0: a door and the as ia d i b o e he wi h he la ch nd keeper ssociat d t erewith; a

Figure 12 is an enlarged detail view in vertical section of the latch mechanism shown in Figure 11,

Referring now more specifically to the attachfid drawin s, er in ik numera s n ca e m r pa ts hro gh t e a u i ws. '0 de ig at s generally a door which is shown hinged as at I; to a rear door iamb I4 and associated with a front door jamb I6.

A sociat d it e door l0 nd he lambs 4 and the ockin m h nism fo m g he subject of this invention, and comprising a loci; casing l8 which may be secured to the door in an su table an er u h as by iaste ioe sc ew 5 tend ng hr ugh ea s car ied y t lock nsthou h the lock casing i s own a detachably bolted to the inner suriace of the door it, it will be e y under tood tha t p nc p f th s in e on c ntempla othe mou i s, c a for ex m ece si g the lock casing l8 within a cavity in the door.

As di ed by h do ted l ne sh wn n Fi e 1 t e ront e ge o h doo has embedd d or recessed therein a pair of latch or bolt casinss indi ated t 25 and 6, h e the rear ed of the do r s p o ided. with a s mila l re e sed bolt casing 28. The door jarnbs l4 and 86, are provided with keeper means cooperating with each of these bolt casings.

Referring now more specifically to Figure 4, and also with reference to Figures 5 and 6, it will be evident that the casing 18 comprises a generally rectangular box having detachable front and

rear walls

30 and 32, respectively, secured as by screws 34 to the casing. Journaled in these walls and ro tab y receiv d a or ex en in th u he r I0, is halt 36 which s provi eo with akeyway 3!! adjacent. one end the eof fo the rece t on o a key 40,w i1e an op rating 3 knob 42 is suitably secured to the end of the shaft for rotating the same as set forth hereinafter.

The extremity of the shaft 38 opposite from the knob 42 is suitably connected to a key controlled locking cylinder 44 of any suitable type which is mounted in a recess in the outer face of the door I8 in accordance with conventional practice. This locking cylinder is intended to fasten the locking mechanism in its latched or released positions selectively.

As shown best in Figures 4 and '7, the shaft 36 adjacent the plate 38 is provided with a pair of apertured ears 46 which are pivotally engaged by a guide pin 48 whose upper extremity is loosely slidable through an aperture 58 in a lug 52 extending laterally from the plate 38. A coil spring 56 is seated between the ears 46 and the lug 54, and surrounds the rod 58, to yieldingly bias the shaft 36 toward a position on either side of its dead-center position as shown in Figure '7. This spring means, therefore, urges the shaft 36 into selective positions to engage the latching instrumentalities or to releas the same, when the shaft 36 has been turned past its dead-center position in either direction.

A generally rectangular plate 58 which may comprise the main bolt of the locking mechanism is slidably received in the casing I8 in upper and lower guides formed between integral longitudinal ribs 88 of the top and bottom walls of the casing I8, and laterally extending longitudinal shoulders upon flanges 62 of the plate 30. As

shown best in Figures 4, 6 and 5, the lock member 58 is provided with a transverse, vertically disposed elongated slot 64 through which the shaft 36 extends, and which slot is operatively engaged by a cam or eccentric member 86 slidably received upon the key 48. The arrangement is such that when the shaft 38 is rotated by the knob 42, the cam or eccentric 66 will engage the walls of the slot 64, and advance or retract the lock 58 as desired.

Keyed upon the shaft 36 by means of the above mentioned key 48, are a pair of latch actuating eccentrics 68 and it which are respectively adapted to actuate the latches disposed at th front edge of the door and that disposed at the rear edge thereof.

Suitable spacer washers I3 are disposed between the members 68, B8 and I and upon the outside thereof, for properly spacing the associated parts in a compact manner.

As clearly set forth in Figures 6 and 5, the eccentric 18 is encircled by an eccentric strap 72 which is detachably secured as by a pin 74 with a rearwardly extending actuating rod 76 which passes through an aperture 18 in the back of the casing l8 and; extends thence to actuate the rear bolt as indicated in Figure l.

The eccentric 68 is surrounded by an eccentric strap 88 to which is pivotally connected as by a pin 82, a vertically and upwardly extending actuating rod 84 which passes through an aperture 86 in the top wall of the casing I8, and thence extends into operative engagement with the upper locking means 24 on the front edge of the door.

As shown best in Figure 6, a vertically disposed lower actuating rod 88 is slidably disposed in aligned apertures 98 in the upper and lower walls of the casing I8, in a manner parallel to the rod 84, and at its upper extremity is provided with a laterally disposed arm 92 which encircles the rod 84 and is secured thereto as at 94, wheres by the eccentric 68 will simultaneously'operate in 4 a vertical reciprocation the

rods

84 and 88 for simultaneously operating the upper and lower locking means 24 and 26 disposed at the front edge of the door.

As so far described, it will be seen that when the key operated locking means 44 is released, the knob 42 is free to rotate the shaft, 36, thereby simultaneously operating the

latch rods

84, 88 and 18 as well as the main latching bolt 58. The spring 56 as above mentioned, biases this mechanism selectively into the locked or unlocked position as the shaft passes its dead-center position with respect to the spring.

Attention is now directed more specifically to Figures 1, 11 and 12 for a better understanding of the bolt mechanism 28 at the rear edge of the door.

As shown best in Figure 12, the rear edge of the door preferably adjacent its mid-point, is provided with a mortise 94 within which is received a lock casing 96 secured in any suitable manner, which latter slidably receives a locking bolt 98. Registering elongated slots I88 and I82 are provided in the inner surface of the door I8 and the casing 86 for slidably receiving a bolt or other fastening means E84 whose inner extremity screw-threadedly engages the locking bolt 98 and whose headed outer end extends through an eye I88 formed on the end of the above mentioned actuating rod 78. In the door jamb i4 is appropriately formed a keeper recess or socket wherein is inserted a keeper N38 for receiving the end of the locking bolt 98 when the latter is advanced into locking position by the actuating rod 76 in the manner above mentioned.

Attention is next directed to Figures 8 and 9 in conjunction with Figure 1 for a better understanding of the upper and lower locking bolts of the front edge of the door. Since the

locking casings

24 and 28 and their enclosed mechanisms are identical, the showing and description of Figures 8 and 9 will suiiice for each. Mortised or recessed into the front edge of the door in each of the upper and lower positions shown in Figure 2, are bolt housings, that of 24 being indicated in Figures 8 and 9.- The housing 24 is of generally rectangular shape having side L Walls to which is detachably secured a cover plate III) as by means of fastening screws H2. Rotatably journaled in the housing 24 is a stub shaft H4 whose outer extremity has a lever arm IIE secured thereto as by a set screw IIB. The outermost extremity of the arm H6 is provided with an aperture I28 for engagement by one of the actuating

rods

84 or 88 above mentioned. At its inner extremity, the stub shaft IE4 is provided with a squared or splined portion I22 adapted to non-rotatably receive the hub of a gear I24 which is in mesh with the rack teeth I26 of a latching bar I28. The stub shaft, pinion and latching bar are shown in detail in the composite perspective view of Figure 10. As shown in Figure 9, the latohbar I28 is guidingly and slidably received in a longitudinally extending channel ISQ; while the pinion I24 is received in a recess I32 opening downwardly from the guiding channel I38.

' As shown in Figure 8, the upwardly extending actuating arm 84 pivotally engages the aperture I28 of the lever N8, of the upperlatching shown best in Figure 3, the door jamb It at the front edge of the door is provided with suitable keeper and retainer means for receiving the latch bars !28 of the latching mechanisms 24 and 2t and the main locking bar of the housing l8. Preferably, a single keeper strip I34 is secured to the jamb iii as by fastening screws I36, this retaining strip being provided with recesses I38 and mate receive respectively the latching bars of the upper and lower latching members 2 5, and 26. ate its ends, the keeper plate 534 is provided with an additional keeper M2 provided with a longitudinally extending slot 844 adapted to receive the main latching bar 58, this plate being retained as by fastening means hi9.

From the foregoing, the operation of the device will be readily understood and further explanation is deemed to be unnecessary.

Since numerous modifications will readily occur to those skilled in the art after a consideration of the foregoing specification and accompanying drawings, it is not intended to limit the invention to the exact construction shown and described, but all suitable modifications and equivalents may be resorted to falling within the scope of the appended claims.

What is claimed as new is:

1. In a locking assembly for a door having front and rear door jambs comprising a locking mechanism mounted upon the door at the front edge I thereof, a casing for said locking mechanism, said assembly comprising a plurality of bolt housings adapted to be mounted upon the door at the front and rear edges thereof, bolt keepers adapted to be mounted in the front and rear door jambs, a lock shaft in said casing, a first cam on said shaft, a main latch in said casing connected to said first cam, a pair of bolts in a pair of bolt housings at the front edge of the door. a second cam on said shaft, means connecting Intermedisaid pair of bolts at the front edge of the door to said second cam, bolt actuating mechanisms for said pair of bolts, a third cam on said shaft, and means connecting a bolt at the rear edge of said door to said third cam.

2. The combination of claim 1 wherein said main latch comprises a horizontally slidable plate surrounding said first cam.

3. The combination of claim 1 wherein said first mentioned connecting means comprises a pair of parallel vertically slidable rods, one of said rods embracing said second earn, the other rod being connected to said first rod.

4. The combination of claim 1 wherein said first connecting means includes parallel upper and lower vertical rods, the upper rod being connected to said second cam, the lower rod being connected to said upper rod above said sec-- ond cam and locking mechanism, and means operatively connecting the opposite ends of the rods to said bolt actuating mechanisms.

WILLIAM FLOYD.

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

UNITED STATES PATENTS Number Name Date 1,006,211 Hermon Oct. 17, 1911 1,189,991 Mugler July 4, 1916 1,225,427 Gage May 8, 1917 1,408,629 Palmer Mar. 7, 1922 1,892,512 Kemp Dec. 27, 1932 2,390,731 Axhandler Dec. 11, 1945 FOREIGN PATENTS Number Country Date 238,359 Great Britain Aug. 20, 1925 297,615 Great Britain Sept. 27, 1928