US2434288A - Door lock - Google Patents

Description

Y Jan. 13, 19487. w R, SCHLAGE 2,434,288

' nooR LocK Filed Hay 27, 194:4Y 2 Sheets-Sheet l Jan. 13, 1948. W. R. scHLAGE 2,434,288

DOOR vLoox Filed May 27, 1944 2 Sheets-Sheet 2 24 v 'i A I INVENTOR Patented Jan. 13, 1948 UN ITED? STATES? fornia i Application May 27;1944,.-Sri.l`N. 53716431v 4 Claims: (Cl. 70S-150) 1. This invention relates' to door-locks and es pecially to that type kn'ownas intercommunicating door locks.'

The object of the present invention is `generallyl to improve and simplify the' construction and".

operationof locks ofthe character described; tot provide adoor lock in whichthelatch bolt may be dogged against operation Leither' in its extended" Or'retracted position; to provide means operable from either'side'of the door for rendering the dogging mechanism operative or'inoperative; ,to provide a doorlock in which there are two independently operative clogging members, one operable from one side of the door and one from' the other side, said clogging members being engageable -with'akeeper forming a part of a retractor platewhich actuatesV the latch bolt and' said keeper when engaged by either ldog dogging` the latch `bolt either in its extended or retractedA position; to provide a clogging mechanism which isfnot onlyY capable of clogging the latchbolt in itsf extended or retracted position but which is also capable of rendering the spindle inoperative;v to provide a'door lockv having two dogging'members which are operable todog the latch bolt` either in a projected or retracted position,` one offsaidedogging members being spring actuated and the other positively actuated; and further;A to providel a door lockin which-the dogging members may be either key 'or manually-actuated or'both:

The' invention is shown'V by wayl of" illustration inthe accompanying drawings, in which' Fig. 1 is f a horizontal section of4 theA door flockl showing :itinfposition in a door; said-viewesh'ow-n ing-the clogging members inretractedposition;`

Fig. 2fis avieWsi-milar to Fig. 1 showingfonel dogging member .in dogging position and the other cloggingV member in position to be projected into' the keeperwhen the'other dog is retracted;

Fig: 3'.`is avertical section taken onlinel 3;-3; Fiel:

Eig. 4 is a perspective view of thef'spindle;

Fig. 5f is -a4 perspective View of the key actuated cylinder;

Fig;v 6 is a perspective View of the dogging memberf which is actuated by the key-'mech anism;l

Fig. '7fis `aperspective viewv of 'the resiliently' mounted ldogging member andj the push button"- 50T whereby it; is'actuated;

Fig'. 8 is a, view similar to Fig. 1 showing-the latchbolt dogged in its retracted position; and Eig.. 9isf af perspective; View; of`the-`1retractorplate and-the:t latch bolt-"secured thereto.

z` Referring to tlie drawings 'in detail; and-fpar=- ticularlyligs: 1; k2 and I 3; ,AL indicates`l a"--portion-- ofadoor irrwhich'are bored; orfoth'erwise formed two holes indcatedat Eiland-C.YV The-holaB is* bored Lfrom' tlr'eouterredge arrdf is di'sposedceir'- is bored ontA the sameplane" and at right` angles: to hole B' and `opens throughthe"irrneranclouterL facespftheidoor; Ihsertablezin holeB is aflatenbolt housing4 generally indicated atf' D" and' mounted'in the "housingis a retra'ctor'platee-*on` the' outerfendof*whiclris'secured "alatch bolt-'I5i whchis'normally'maintanedinprojecteelposi'i tion `b`:,f"means of 1a springj'lf Thereai`- end fof theretractorrplate frias. a4- hole 9" formed; therein` and" as such'k functions` as av4 keeper:N for' oneu or" another of a. pair of dogging1members*hereinafterN to tbe described. An elongatedopeningjlllis also formed inttheiretractor plate and "at the rear-end' ofthe' opening' are azpair of shoulders" II-'-I I which cooperate .withia' roll-ibaekmember" here; inafter to bedescrib'edr ExtendingK through the' transverseopening C' and( through openings formediin' theu side-"walls IZLI 2" of' the'y latch" bolt housing ae spindlereceivingran-d supportinghousing `I 4: The spindle' housing "is"tubular in form; it has akey i orrib" I 5" formed* on its exterior midwayj of its" length' and this rib-engages notches I6L formedin the side 4wallsr I2-I 2 of" the latch* bolthousing:1 (see' Fig.'y 3);' therebysecuringE the spindle4` housing against rotation withV relationn to the' latch bolt housing when inserted' andl the spindle' 'housing' in" turn`l securing-thev latch" -boltf housingI vagainst` removal from the-hole B.YV The spindle 'housing' issecured against fendwisef removal fromV hole C` lziyog threading" its'- oppositeJ endsl and2 applyingfescutcheonplates I 'If-I l.Y

Extending' throughA andy journa'lledL in"A the' spindle housing andtheescutcheonplates isa tubular spindle-I8: see-Figs: 1,12'; 4 and Sfand secured "on oneV errd thereof is an'innerdoorkfnob wand-fon the other end` anouter knob" 2'0. The spindle-is out; away `midwayV of fits"length^ 4to form a'v roll-back' member 2Ia which' Y engages the shoulders I I-I I formed on the retractor plate', hence; by rotatingthefspndle'by;l mean-sf of either of the knobs I9 v/or-2|)'," the' roll-#back-memberVr wilengage one oranotherof the shoulders IIfvand cause` retraction of the retractorf platej andthe: latch bolt" 5 secured? thereto'-and spring 1* will automatically project the" retractorplate and latch4A bolt :and restore-the spi11dle=and"*kno'bsftoK normal lpositionewhen-the-l-x'nob is released; The

employed. They are both mounted within thel spindle and either of them may be projected into engagement with the keeper to dog the latch bolt against operation or both may assume a retracted position if it is desired to open the door from t dog E is moved to retracted position.

either side.

The dog E is mounted within a sleeve 22, see

Figs, 1, 2 and 7. A flat bar 23 enters the youter end of the sleeve and is secured to the sleeve by a cross-pin 24. into a cam-shaped slot 25 formed in the spindle and this slot terminates in a seat 25, see Fig. 4. A combination push and turn button having a nger piece 2l formed at its end is secured to the outer end of the bar 23 and normally assumes the position shown in Fig. rl as a spring 28 is interposed between the button and the sleeve. However, by grasping the button and pushing it inwardly with a partial rotary movement until the pin 24 seats in the recess 26 formed at the inner end of slot 25, sleeve 22 will be moved from the position shown in Fig. 1 to that shown in Fig. 2 and if Idog F assumes the retracted position shown in Fig. l dog E will enter the keeper and dog the latch bolt 6 against operation. On the other hand, if dog F assumes the clogging position shown in Fig. 2, dog E will merely recede within sleeve 22 and will automatically be projected intoV engagement with the keeper at the moment dog F is retracted as it is actuated by a spring 28a.

To render dog E inoperative it is only necessary to grasp button 2'! and rotate it to position the cross pin at the outer end of slot '25 or to assume the position shown in Fig. 1. Y

The operation of the dog F is similar but differs in that it is key actuated. The dog F is formed on the inner end of a plug 30, seev Figs. l, 2 and 6. This plug carries a pin 3l and that projects into a cam-shaped slot 32 identical in shape to the slot 25 previously described. The outer end of the plug terminates in a blade 33 and this projects into a slot 34 formed in the inner end of a cylinder 35 which is mounted in a housingl 3,6. A pin tumbler type of key actuated lock y.is showndn which 36 is the housing and 35 .the'cylinder into which the key 37 isinserted. When the'key is inserted the tumblers part and the core or cylinder 35 may then be rotated and when it is rotated it obviously rotates the plug 30 due Yto its engagement with the blade 33. The rotation imparted is of course limited by the length of .the slot 32 and when the pin 3l reaches the inner end thereof plug F will be projected and will extend through the opening 9 formed in the keeper.

In other words, it will assume the position shown in Fig. 2 and the latch bolt will accordingly be dogged in its extended-position. It may also be dogged in its retracted position as shown in Fig. 8.

By key actuation dog F may be retracted or projected at will. Similarly, the dog E may beprojected or retracted through means of the button,

21, thus the latch bolt E may be dogged against operation from either one side or the other ofthe door, and, in fact, both dogs maybe movedto dogging position as shown in Fig. 2. Forinstance,`

when the dog E is moved from the position shown One end of the pin projects..

automatically project into engagement with the keeper and the latch bolt will still remain dogged so that a person located on the key actuated side of the lock cannot open the door except when the An anchor member is generally indicated at 40. The inner end 0f this member extends into the cutaway portion of the spindle and engages shoul- .ders 4l-4l formed by the cutaway portion. Its

only function is that of securing the spindle against endwise removal from the spindle housing. This feature forms no part of the present invention and is therefore neither claimed nor specifically described, and while this and other features of the invention are more or less specifically illustrated, I nevertheless wish it understood that various changes in form and proportion may be resorted to within the scope of the appended claims; similarly that the materials and nish of the several parts employed may be such as the experience and judgment of the manufacturer may dictate or varying uses may demand.

Having thus described my invention, what I claim and desire to secure by Letters Patent is:

l. In a door lock, a retractor plate, a latch bolt secured to the retractor plate, a spindle cooperating with the retractor plate to retract the latch bolt, a keeper on the retractor plate, a pair of dogs within the spindle one on each side of the keeper, one of said dogs being resiliently mounted, means for moving the other dog into engagement with the keeper to dog the latch bolt in its extended position, and means for moving the resiliently mounted doginto engagement with the dog which engages the keeper so that the resiliently mounted dog may be outwardly projected into engagement with the keeper when the other dog is disengaged from the keeper.

2. In a door lock, a retractor plate, a latch bolt secured to the retractor plate, a spindle cooperating with the retractor plate to retract the latch bolt, a keeper on the retractor plate, a pair of dogs within the spindle one on each side of the keeper, a sleeve within the spindle in which one dog is resiliently mounted, means for moving the other dog into engagement with the keeper to dog the latch bolt in its extended position, and means for moving the sleeve with the resiliently mounted dog therein into engagement with the dog which engages the keeper so that the resiliently mounted dog may be automatically projected into engagement with the keeper when the other dog is disengaged from the keeper.

3. In a door lock, a retractor plate, a latch bolt secured to the retractor plate, a spindle cooperating with the retractor plate to retract the latch bolt, a keeper on the retractor plate, a-pair of dogs within the spindle, one on each side of the keeper, one of said dogs being resiliently mounted, means for moving the other dog into engagement with the keeper to dog the latch bolt in its extended position, means for moving the resiliently mounted dog into engagement with the dog which engages the keeper so that the resiliently mounted dog may be outwardly projected into engagement with the keeper when'the other dog is disengaged resiliently mounted dog inoperative to engage the keeper.

4. In a door lock, a retractor plate, a latch bolt secured to the retractor plate, a spindle cooperating with the retractor plate to retract the latch bolt, a keeper on the retractor plate, a pair of dogs within the spindle, one on each side of the keeper, a sleeve Within the spindle in which one dog is resiliently mounted, means for moving the other dog into engagement with the keeper to dog the latch bolt in its extended position, and means for moving the sleeve with the resiliently mounted dog therein into engagement With the dog which engages the keeper so that the resiliently mounted dog may be automatically projected into engagement with the keeper when the other dog is disengaged from the keeper, said means also adapted 6 to maintain the sleeve with the resilently mounted dogr therein in a retracted position where the resiliently mounted dog is rendered inoperative.

WALTER R. SCHLAGE.

REFERENCES CITED The following references are of record in the 10 le of this patent:

UNITED STATES PATENTS

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