US2666321A

US2666321A - Door lock

Info

Publication number: US2666321A
Application number: US195174A
Authority: US
Inventors: Frank R Collar; Earle D Grizzard
Original assignee: Adams Rite Manufacturing Co
Current assignee: Adams Rite Manufacturing Co
Priority date: 1950-11-13
Filing date: 1950-11-13
Publication date: 1954-01-19
Anticipated expiration: 1971-01-19

Description

Jan. 19, 1954 F. R. COLLAR ET ALI 2,666,321

DOOR LOCK Filed Nov. 1 3, 1950 3e 4e 4o l 2 1 3 l 54 v 6 L; 22 INVENTORS Frank R. Collar,

BY Earle D. Grizzclrd,

' ATTORNEY rz 'e t w the wi l e os on- ,6 1?: t w-wine di i es; th re Patented Jan. 19, 1954 ii lQali ornial -:.,Iti.s1one0h.ie. fthe n en we t, wide ad oraloqk utiliz svon x sm lled which theapae-r I a e so eompect constru tion w A-fui' h mobiectis i novel m ansiion d o .-.Qe1 1. ie h i Q kbfi i riikmQ' re ho 3am whichzl'd when", :curved. or. is

n: wiotttheperp e XQ ttQP SW ilZh H 12mins 6' the eccompangh g are ,i ttiiie tratiys ee eeee .15

* et Lu e "6% S aiem r F 4. tr ee eteee e ipael Y-iW h= etaatiefleq Li k150i e3;

Fi is e-Mertieairsee mnahviewietalgen seb: stantially on line 5-5 of Fig. 3; and shmzv,ing the parts -of the mechanism in unlocked l position;

and

Fig. 613 evfre gmentary view;similar-to Fig. 5

Re in 592$? 6 weietii i li et qsd eglee temh dyi -:"-Qnthendoor iwmbii leath rs is mounted meo r 616 ion isheldm p aoe bin-secure .7 l v LI he strikeihavin az-centrail t-il BY-ada t d. o rec iv -therholtfz [3;- th olt. 5"f 1 :m i? @138d? looked-positi n.

e -1o.c1 ymeehanism; perativelyemonnted nport d within t1. teasing :Structure oompes d ofijspa edsideplates mendimend azspacer platei L; The side jplates-areeprowiided alongaone ed e :with inwardlyi turned Slugs tz2:2,?';these::1ugs heing seoured byymealns of suitable nivetsizi Bathe sh pen-mated lxzsp sass 1101mm a: nig-id'frameazoasjng; lgonstliufitiom -,,In; addition the; side: plateseI-B Q lZQlsZ LQJIPQSeC -IEBII adjacent theimends-sbyws aner

pins

24 and 25 having their respective ends rivfififi imffihfij; side'. plates.

I Adjaeentmhe-spacer- 'pinsZ 5,; the side: plates-ere reinforced byzinnera plate 1 members iii-2:26; these inner plateamembers end azssoeiated: side plates heme; provided With-threaded rop enings' Tz'hxil'l which-the ken-cylinder t2. mawbemounted; interehangleably in order to provide-key: control firn'm :2? the inside: or .outsidemf the door, ;a-s:desired. :The

key eylinder: is 'of nonventional: construetionvand iheludes ai-zrotatatbietoamczawzhich is pos'itionied hetweenqthe side'piates I293'J1dl2 0v, and is notatable in OIl-B-Zdi'IECl'iiOllzOI the other toactuateithe loom ins: meehanism to locked,- and unlocked. positions, as will;hereinaftenbe more fully described.

'EThfi. bolt?- I31 is:.fa-brieated from a plurality {of plate members, .As clewrlyshouwn in Figs, 3-16 ;-the bolt [iris compesedfof Ug-shaped.sidez lates'flihand fining an elongate .openeendedslotiw therebetween: The; side plates 29 "and till -at theirrbridg ing: end portions; vare .eonnected by. 'means r'of rivets (Hi-+34 to an'intermediate spaeer plate :35 whichgcooperates withrthe adjacent portions-ref the. sideiplates inform the partaof' the bolt actively cooperating. with the strike l6.

The-legs :3. i: and 32; are respectively/connected to the corresponding legs on the associated-side platehy'means r01 spacer .pins 36%36, these' pins each having :abutment lend flanges *3! thereon. *I'The bolt assembly :is asupportedvfor r rectilinear moizementsin one direction: and: .opposite& :di! rectionto :protmeted :and-retmeted :positiopsgthe boltzex ndihev-th efid ed mtheeleesi endszi s a, ouidinewollet Amhetnmflaoed timeless;

Positioned at one side of the bolt structure,

is a locking member 43 which is constructed of plate material and is of U-shape generally, this ember having a short leg 44 and a relatively long leg 45 which are in spaced relation and cooperate to define an elongate open-ended slot 46 which is in right angled relation to the slot 53 of the bolt structure.

The legs 44 and 45 straddle the spacer pin 24 and thus support the locking member for rectilinear movements in one direction and in opposite direction in right angled relation to the rectilinear movements of the bolt l3. The looking member 43 is cooperatively associated with the bolt structure and carries a projecting pin 41 on its leg 44, which is adapted to seat in

space notches

48 and 45 in the adiacent leg 3| of the bolt structure, when the bolt is moved either to its protracted position or to its retracted position. Thus the bolt is deadlocked in these positions. biased in a direction to seat the pin 41 in the notches 48 and 49 respectively by means of a U-shaped leaf spring 55, one end of this spring being anchored beneath an adjacent lug 22 of side plate 25, and the other end bearing against the adjacent end of leg 44 of the locking member 43.

A common actuating member is utilized for the locking member and the bolt structure. For

such purpose, an elongate lever arm is provided at one end with a tubular hub 52 which swingably supports the lever arm upon spacer pin 25 as a pivot. The free end of the lever arm 5|, as shown in Fig. 5, is contracted to form a reduced end portion 53 which is positioned between the side plates 29 and 3B of the bolt structure for lost motion movement between the adjacent spacer pin 35 and the inner surface of spacer plate 35 of the bolt structure.

Inwardly spaced from the free end of the lever arm 5!, there is provided a pin 54 which projects on opposite side of the lever arm 5|, as shown in Fig; 3. The right end of the pin 54, as seen in Fig. 3, is operatively associated with the innermost end of locking member .3, this end being formed with a flat end portion 55 which is connected at its ends with inclined edges 55 and 57 to form an appropriate cam surface which will act during swinging movement of the lever arm 5! to move the locking member against the force of spring 55 and at the same time unseat the pin 4'! with respect to the notch 48 or notch 49 with which it may be associated.

The left end of the pin 54 is in the path of movement of the cam 28 of the key cylinder, so that by operating this cam in one direction of rotation the lever arm 5| may be rotated in a direction to move the bolt structure to protracted position and by operating the cam 25 in the opposite direction, the movement of lever:- arm 5i is reversed so as to move the bolt structure to retracted position. Since the shifting movement of the pin 54 is accomplished by en- The locking member 43 is normally arm is made long or short, or the shape of the arm is varied. Thus it is possible to utilize key cylinders of various manufacture without having to modify their structures.

Fig. 5 shows the parts of the lock in their relative positions for a retracted bolt, and Fig. 6 illustrates the positions of these parts when the bolt is in protracted position. Due to the lost motion connection of the lever arm 5| with the lock bolt structure, it will be apparent that the pin 54 will act on the cam surfaces of the locking member during movement of the lever arm 5| in the lost motion interval, so that the bolt will gagement with the side edge of the cam arm 28, it is not critical to the operation if the cam,

be unlocked from dead lock condition prior to the operation of the lever arm end ortion 5| to move the bolt to desired position.

Since the face plate I4 is separate from the spacer plate 2|, it will be apparent that this construction permits face plates of different configuration to be attached to the spacer plate. That is, in some installations, it may be found desirable to utilize a face plate with a convex surface so that the door may be swung both inwardly and outwardly, or it may be desired in the case of doors which swing in one direction to open, to provide a face plate having a beveled surface. Thus the present construction lends itself admirably to flexibility of installation.

Moreover, by making the face plate of separate construction, spacers may be inserted between the face plate and the spacer plate 2| so as to adapt the lock structure of the present invention to various installation requirements. Of course, when such spacers are utilized, it will be necessary to lengthen the bolt structure. This is easily accomplished since the bridging portion of the

side plates

29 and 30 may be made of any desired length. This is therefore an additional advantage which is obtained by fabricating the bolt structure from stock materials of plate members, rather than constructing the bolt structure of a single or unitary piece of material.

In the foregoing description, a key controlled cylinder l2 has been shown for actuating the lock of the present invention. It is contemplated, however, that various types of operating handles, which are not of the key controlled type, may be utilized if desired; these handle mechanisms being readily mountable in the opening 2! of the casing structure.

In addition, where it is desired to utilize rela tively smaller key cylinders having relatively short cams, such as supplied by certain manufacturers. this may be simply and readily accomplished by providing the mounting opening 21 for the lock |2 at a position more closely spaced with respect to the pin 54, or mount a duplicate of the pin 54 higher on the arm 5 From the foregoing description, it is believed that it will be readily apparent that the lock structure of the present invention will accomplish the objects as hereinbefore noted.

We claim:

1. A lock mechanism, comprising: a bolt mounted for rectilinear movements to protracted and retracted positions; a pair of notches spaced longitudinally of said bolt; a swingably mounted bolt actuating lever arm having a connection at its outer end with said bolt; a bolt locking memher supported for rectilinear movements in directions at right angles to the movements of said bolt, said locking member having a projection adapted to seat in one of the notches in bolt protracted position and in the other of said notches in bolt retracted position; means resiliently biasing said locking member in a direction to seat said projection; a pin carried by said arm; a cam surface on said locking member in the path of movement of said pin; and a key controlled lever rotatable in one direction or in opposite direction into engagement with said pin to release said locking member and actuate said bolt from one of its positions to the other.

2. A lock mechanism, comprising: a bolt mounted for movements to protracted and retracted positions, said bolt having shoulder mean-s spaced longitudinally thereof; a swingably mounted bolt actuating lever arm having a connection at its outer end with said bolt; a bolt locking member supported for movements in directions at right angles to the movements of said bolt, said locking member having locking engagement means arranged to engage one of said shoulder means when the bolt is in protracted position and to engage the other of said shoulder means when the bolt is in retracted position; means resiliently biasing said locking member in a direction to bring said engagement means into engagement with said shoulder means; a pin carried by said arm; a cam surface on said locking member in the path of movement of said pin; and an operating lever rotatable in one direction or in opposite direction into engagement with said pin to release said locking member and actuate said bolt from one of its positions to the other.

3. A lock mechanism, comprising: a supporting structure; a bolt mounted in said supporting structure for movement between protracted and retracted positions, said bolt having shoulder means spaced therealong in the direction of its movement; a locking member supported by said supporting structures so as to have movement transversely of the direction of movement of said bolt member, said locking member having looking engagement means arranged to engage one of said shoulder means when the bolt is in protracted position and to engage the other of said shoulder means when the bolt is in retracted position; a pivot member supported by said structure in a position spaced to a side of said shoulder means; a lever swingable on said pivot member and extending therefrom towards said bolt, the free end of said lever overlapping a portion of said bolt and having lost-motion engagement therewith for moving the bolt into protracted and retracted positions, said lost-motion engagement providing a free movement of said lever in either direction prior to the movement of said bolt by said lever; means of engagement between said lever and said locking member adapted to impart, from said lever to said locking member, during said free movement of said lever, a movement of said locking member which will disengage said locking engagement means from said shoulder means; an operating member movably supported by said structure; and a projection on said lever positioned for engagement by said operating member whereby said operating member will move said lever.

4. A look mechanism, comprising: a supporting structure; a bolt mounted in said supporting structure for movement between protracted and retracted positions, said bolt having shoulder means spaced therealong in the direction of its movement; a locking member supported by said supporting structures so as to have movement transversely of the direction of movement of said bolt member, said locking member having locking engagement means arranged to engage one of said shoulder means when the bolt is in protracted position and to the other of said shoulder means when the bolt is in retracted position; a pivot member supported by said structure in a position spaced to a side said shoulder means; a lever swingable on said pivot member and extending therefrom towards said bolt, the free end of said lever overlapping a portion of said bolt and having lost-motion engagement therewith for moving the bolt into protracted and retracted positions, said lost-motion engagement providing a free movement of lever in either direction prior to the movement of said bolt by said lever; a cam on said locking member disposed in the path of movement of said lever and being arranged to impart movement to said locking member, during said free movement of said lever, a movement of said locking member which will disengage said locking engagement means from said shoulder means; and an operating member adapted to move lever back and forth as required to operate said locking member and said bolt.

FRANK R. COLLAR. EARLE D. GRIZZABD.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 668,188 Jenkins Feb. 19, 1901 1,942,508 Waing -1 Oct. 29, 1912 1,255,106 Oltean Jan. 29, 1918 1,464,473 Hjort Aug. 7, 1923 1,942,087 Cooper Jan. 2, 1934 FOREIGN PATENTS Number Country Date 142,527 Austria Aug. 10, 1935 159,897 Switzerland Apr. 1, 1933 163,227 Switzerland Oct. 2, 1933 447,273 Italy Apr. 6, 19 19 789,929 France Aug. 26, 1935