US1843143A - Doorlock - Google Patents

Description

Feb. 2, 1932. t I RYMER 1,843,143

DOORLOCK Filed Feb. 28, 1929 2 Sheets-Sheet v i II Feb. 2, 1932. J, A R M R 1,843,143

DOORLOCK Filed Feb. 28, 1929 Sheets-Sheet 2 IN VEN TOR.

I JOHN A. PYME/Z fry. .7]. BY A TTORNEX Patented Feb. 2, 1932 UNITED STATES PATENT OFFICE JoHN A. BYMER, or BERKELEY, CALIFORNIA, ASSIGNOR, BY MESNE ASSIGNMENTS, TO

RY-LOCK COMPANY, LTD., 013 RENO, NEVADA, A CORPORATION OF NEVADA DOORLOGK The inventionrelates to door locks of the latch bolt type, and the present embodiment of the invention relates more particularly to .,,such types of locks having a rotatable and "axially displaceable" spindle for actuating the latch bolt.

An object of the invention is to provide a lock of the class described having operating means therefor at each side of the door which may be rendered inoperative to effect the retraction of the latch bolt.

Another object of the invention is to provide a lock of the class described having op- ..erating mechanism of such design and construction that the parts cannot be distorted to effect the operation of the lock even upon the application of great force thereto.

A further object of the invention is to pro- --.vide a lock of the type in which the axial position of the spindle controls the operation thereof, having key controlled means for locking the spindle against axial displacement when positioned to prevent the opera- .tion of the lock.

A still further object of the invention is to provide a lock of the class described, in which the dismantling of the lock is absolutely prevented when the lock is positioned to prevent operation. from both sides of the door.

The invention possesses other objects and features of advantage,some of which, with the foregoing, will be set forth in the following description of the preferred form of the invention which is illustrated in thedrawings accompanying and formingpart of the specification. It is to be understood, howview of the lock positioned in a door.

* Figure 2 is a side view partly in section, of

the portion of the look at the inner side of the door showing the parts in a different posit-ion from that disclosed in Figure 1.

Figure 3 is a vertical section of the lock takenon .the'line 33 of Figure 1'.

'7 Application filed February 28, 1929. Serial No. 343,509.

Figure 4 is a perspective view of the lock spindle.

Figures 5 and 6 are perspective views of members associated with the spindle.

Figures 7 and 8 are transverse sectional views of the lock taken on the lines 77 and 88 of Figure 1.

Figure 9 is a perspective view of the inner door escutcheon plate and associated parts.

Figure 10 is a transverse sectional view of the lock taken on the line 1010 of Figure 1.

Figure 11 is a transverse sectional view taken on the line 1111 of Figure 1.

The present embodiment of my invention is incorporated in a lock 12 disposed in a suitable cavity 18 provided in the free edge portion 1 1 of the door 16, which is arranged to be operated from the inner and outer sides of the door by means of a knob 17 and a thumb lever 18. The lock is provided with a bolt 19 which is arranged to normally ex- 7 tend from the outer end of the bolt casing 21 mounted in the door edge 14.

Slidably mounted in the casing 21 is a bolt yoke or latch plate member 22 for actuating the bolt, such member being here shown hollow and is of generally rectangular outline, and being urged to assume and maintain an outer position by reason of a spring 23 operatively engaged behind it. Journalled in the casing 21 to extend horizontally therethrough is a latch actuator 24: having ex tending therefrom intermediate the casing walls an arm 26 arranged for engagement with the lat-ch plate 22 in such a manner that a rotation of the actuator from the normal position shown in Figure 3 will effect a retractive displacement of the latch bolt. Preferably, and as shown, the actuator arm 26 is arranged for engagement with the latch plate both at the upper and lower sides thereof whereby rotation of the actuator in either possible direction may retract the latch bolt.

Extending axially through the actuator is an opening 27 arranged for the slidable reception of a spindle 28, the opening and spindle being of like polygonal section whereby rotation of the actuatormay be effected by rotating the spindle. Rotation of the latter from the inner and outer sides of the door may be effected through the medium I of the knob 17 and thumb lever 18 which are operatively connected to the spindle adjacent the inner and outer ends thereof.

The spindle is arranged within a cavity portion 29 which extends transversely through the door and combines with the cavity 13 in which the latch-plate is disposed. Arranged at opposite ends of the cavity 29 and disposed against the inner and outer sides of the door are plates 31 and 32 which serve to support the lock on the door. The plates are secured together by means of screws 33 which extend from the plate 31 and engage in the extensions 34 fixed to'fthe plate 32. The plate'32 is in turn fixed to the escutcheon plate 35 which is arranged on the outer side of the door and encloses the plate and the lock mechanism on the outer side thereof. 7 f 7 The spindle is formed of two sections 36 and 37, having a screw threaded connection, such as indicated at 38, whereby one section mayrotate with respect to the .other, the portions of the sections adjacent their point of connection being here arranged to lie at all times Within the opening 27 ofthe bolt actuator 24. In the present embodiment of the invention the spindle is arranged to occupy different longitudinally spaced. positions, and means are therefore provided for supporting the spindle for such movement as well as to permit the rotation thereof in said positions. As shown in Figure 1, the

spindle section 37 is provided with ajour- 1 ha l :39 which is mounted for rotatable and axial movement in the bearing 40 allixed to the plate 32. Preferably formed integral with the spindle section and disposed inwardly of the journal 39 is a body 41 comprising a cylindrical portion 42 and a gear 43, the outside diameters of which are here shown equal. Positioned at the side of the body 41 and mounted to move tangentially thereof is a gearrack 44 arranged for rotating the gear 43 when the rack is engaged therewith. As previously stated the spindle is arranged to be moved longitudinally from one position to another, and in one of said positions the gear will be opposite .the rack while in the other position, which is indicated inFigurel, it will be removed therefrom. It will thus be evident that when the rack is opposite the gear,'the thumb lever 18 which is'operatively connected to the rack, may be depressed so as to raise the rack and thereby effect a rotation of the spindle and the consequent retraction of the bolt. Normally, as shown in Figure 7,. the rack is retained i'n adepressed position by means of a spring 46 attached to the thumb lever, so

will be understood, is confined to movement in a single tangential line, and it will thus be" noted that when the portion 42 is opposite the rack, said portion will be in the direct path of the rack teeth and movement of the rack will not be possible. In this manner when the spindle is thus disposed, not only will the rack be ineffective for rotating the spindle but the rack thumb lever, will be locked against movement.

While actuation of the latch bolt by means of the thumbleveris thus effectively prevented when the spindle is positioned to present the portion 42 to the rack, key-controlled means are provided by which the spindle, while so disposed, may nevertheless be rotated from the outer side of the door. Arranged within the escutcheon plate 36 is a tumbler barrel 49 having a passage 51 for the proper key 52. Slidably fixed to the outer end of the spindle but rotatable therewithis a key tip; receiving member 53 preferably extending partly into the passage 51. Thereceiving member 53 is provided with suitable notches so that when the key shank is inserted into the passage and the key tip is seated in the notches, the spindle may be rotated upon the turning of the key, it being noted that the rack and portion 42 offers no resistance to such turning...

The spindle is, in the present embodiment of the invention, normally urged to assume what may conveniently be termed the retracted position, that is, the position in which the gear is inoperatively disposed to the rack. This is preferably. accomplished independently of the, latch bolt spring, and, as here shown, the same is elfectedj by means of .a spring 54 arranged within thespindle and interposed". between the key. tip receiving member and a wall of the spindle.

The knob 17, as previously stated, is preferably directly secured to the inner end of the spindle and may be utilized both for rotating 7 the door. In order that the 'knob may be held against turning when the spindle is in retracted position, to thus denote that retraction of the bolt by the'thumb lever is not per-f mitted,or, in other words,:that the door is locked fromthe outside, means are provided for causing the spindle section 36 to be held against rotation when thei spindle is in retracted position but permitting the turning of the knob to rotate the spindle when the latter is in protracted position. As will be seen from Figure 1, the spindle-section 36 extends through an opening 59 which is formed in the side plate-31- When the spindle is in the retracted position, one portion 61 of the section. engages in the, opening,

whereas when the spindle is in protracted pwithin the opening. The opening 59 and portion 61 in cross section are of the polygonal form so that when in the retracted position of the spindle the section 36 cannot be rotated. The portion 62, however, is round or otherwise formed so that it may rotate freely within the opening. It will thus be clear that when the spindle is protracted the section 36 is free to rotate and the knob may be turned to retract the bolt.

, It will be evident that in order to permit the retraction of the bolt by means of the key 52 when the spindle is retracted, the section 36 of the spindle must not prevent the rotation of the bolt actuator 24:. Accordingly the portion 63 of section 36, which in the retracted positionof the spindle is arranged to lie within the actuator opening, is formed round or otherwise reduced in cross sect1on so that the actuator may revolve thereabout. When, however, the spindle is protracted, a polygonal portion 6 1 of the section 86, as well as said portion 63,'will he within the actuator opening whereby rotation of the actuator by means of the knob 17 may beeifected. It maybe noted that while the spindle s be1ng moved longitudinally from one posltlon to another, either the portion 61 or 64 of the spindle section will be respectlvely engaged within the opening 59 or 27. In th s manner the spindle section will be retalned 1n proper position during the movement thereof and the portions 61 and 64 will be guided to proper engagement in said openings.

Means are provided operable from the inner side of the door, for retaming the spmdle 1n protracted position whereby the retraction of the bolt will be permitted by the mere use of the thumb lever or the simple turning of the knob, in other words to render the door unlocked from both sides. Mounted for rotation on the knob sleeve 56, and as here gshown held against axial displacement thereon by means of the knob escutcheon 5S and an inner door escutcheon plate 66, 1s a posltioning member 67 having a portion thereof concealed. within the escutcheon 66 and protvided with a cam face 68. Fixed on the spindle against axial displacement but allowing the rotation of the latter relative thereto, is

a thrust member 69 having a vpair of arms 71 extending through openings 72 of the plate 31 and arranged to engage the cam face 66. The member 67 may be rotated from one pos1- tion to another whereby the cam in cooperation with the member 69 will operate to force thejspindle forwardly from retracted topr'otra cted position and retain same in such latter position. With the spindle thus disposed, retraction of the bolt may be readily efiected by turning the knob or depressing the thumb lever. By rotating the position- ,ing memberback again, the spindle will be ably a button 7 3 is fixed to the member 67 so as to facilitate the moving of the member and at the same time affording a means of readily indicating the position of the spindle.

Key-controlled means are provided which may be used for locking the positioning member 67 against rotation when the spindle is in retracted position so that when the door is locked on the outside but access is somehow or another secured to the knob or said member by a person stationed on the outside, retraction of the bolt from the inside will be impossible without the use of a proper key. Fulcrumed to and lying within the knob sleeve 56, is a lever 74-, one arm 75 of which is arranged, when the spindle is in retracted position, to engage in a recess 76 provided on the inner side of the member 67. With the lever disposed within the recess, rotation of the positioning member will be prevented. The lever is urged to assume engagement in the recess by a spring 78, but such engagement is normally prevented by means of a cam 79 bearing against the other arm 81 of the lever. The cam79 is fixed to the inner end of a tumbler barrel 82 which is mounted within the knob and sleeve and which may be rotated by a proper key 83. The cam is provided with a depressed portion 8% within which the arm 81 may seat when the tumbler barrel has been rotated to a predetermined position, at which time the arm 75 will engage the member 67 to prevent movement thereof and retraction of the bolt. With the lever thus engage-d with the positioning member, release of the latter can only be effected through means of the proper key.

The sleeve, as previously stated, is secured to the spindle by means of a screw 57, access to which is afforded exclusively through an opening 86 provided in the positioning member 67. The opening 86 is so positioned on the member that it will be aligned with the screw only when the spindle is in protracted position, and thus when the member is rotated to place tl e spindle in retracted position, the screw and opening will have moved completely out of registration. In this manner it will be evident that when the positioning member has been locked by the use of the key, removal of the knob from the spindle to effect a dismantling of the lock sufficient to permit protraction of the spindle will be absolutely prevented.

It will be noted that the lock of my invention, when assembled on the door, is without any visible means of attachment between the parts or with the door, and in connection with this feature particular attention is directed to the effective manner of attaching the escutcheon plate 66 to the side plate 31. As clearly shown in Figures 1 and 5, the plate 66 is provided with opposed. perforations 86' and 8'1 which are respectively arranged to be engaged by a fixed lug 88 and a springpressed lever 89, both of which are secured to the plate 31. l/Vith this construction in assem- I bling the escutcheon plate in position, it is merely necessary to insert the portion with the opening 86 over the lug 88 and then snap the portion with the opening 87 over the lever.

; To release the escutcheon, it is merely necessary to press the lever back out of the opening and then'raise the plate to disengage it from the lug 88. It will be clear or" course that the detachment of the plates may only be eliected when the knob is detached from the spindle.

I claim:

-1; In a door. look, a latch bolt, an axially displaceable spindle for actuating said latch bolt, agear fixed on said spindle for rotation therewith, a rack operable from one side of said door and arranged to operatively engage said gear in one position of said spindle, and means operable from the other side of said door for displacing said spindle whereby gear.

3. In a door look, a latch bolt, a spindle for actuating said latch bolt, a gear on said spindle arranged for rotation therewith, a rack operable independent of said bolt, and

means for placing said gear and rack in or out of operative engagement for permitting or preventing a rotation of the spindle from a sideof the door.

4:. In a door lock, a latch bolt, a spindle for actuatingsaid bolt, a gear on said spindle, a

7 rack operable independent of said bolt arranged for operative engagement with said gear, means on one side of sa d door o erable to rotate said spindle when the and rack ia-re engagechand means on'the other side of said door operable to move said rack and gear intoand out of said engagement.

5. In a. door lock, a latch bolt, a spindle for actuating said belt, a gear on said spindle,

Ia rack cooperatin with said ear to actuate said bolt and normally held in inoperative position relative to the gear, means on one side of said-door for moving said gear and rack into and outer operative relation,and

lock operating means on the other side of the door inoperable when said gear and rack are out of cooperative relation.

6. In a door loclnajlatch belt, a rotatable longitudinally displaceable spindle for actuating said bolt, agearfixed on said spindle for rotatable and longitudinal movement therewith, means at one side ofthe door opera tive tomove saidspindle longitudinally fromone position to another, a rack operatively engaged with said gear in one of said spindle positions and disengaged therefrom in the other position, means operative from the other side of the door tomove said rack to rotate the gear, key operated means associated with said first means forlocking the spindle in said last position.

7. In a door lock, a latch bolt, a longitudinally displaceable spindle for actuating said bolt, means operable at one side of the door to move said spindle longitudinally from one positionto another,a cooperating rack and gear associated with said spindle respectively operative and inoperative to elli'ect the rotation of the spindle in the positions aforesaid, means at the'other side of the door-to operate the rack and gear to rotate the spindle, and key'operated means on said second side of the door to rotate the spindle in the second named position.

'8. A doorlock in accordance with claim 7 characterized by keyoperated means on the first mentioned side'of the door for locking the spindle in the-second mentioned'position.

9 In a door look, a latch bolt, an axially displaceable spindle for actuating said belt, a toothed member fixed on said spindle for rotation therewith, a second member axially spaced from the first, a rack engageable with said first member, means operable from one side of the doortomove said spindle longitudinally fromone position to another whereby said first and second members will be respectively engaged by the rack to permit or prevent the rotation of the spindle by the rack, and means operative from' the other side of the door for moving the rack.

10. In a door lock, a latch bolt, an axially displaceable spindle for actuating said bolt, a gear fixedto the spindle for rotation therewith and having a cylindrical portion axially spaced therefrom and of a diameter exceeding theclearance line ofthe gear, a rack arranged for cooperation with said gear and cylindrical portion and for movement perpendicular to the spindle, means operable from one sideof the. door for moving said spindle longitudinallywhereby the gear and portion will alternately engage-the rack and thereby respectively permit and prevent operative movement of the rack to rotatethe spindle, and means operable from the other side or" the-door for moving the rack.

11. A door lock'comprising a'latch bolt, a

rotatable and axiallydisplaceable spindle for actuating said bolt,"means operable fromone side of the door for'rotating and axially displacing the spindle, a thrust member connected to said spindle for axial displacement therewith, means independent of said first means operable from said sideof the door to move said member to displace the spindle.

12. A door lock comprising a latch bolt, a rotatable and longitudinally displaceable spindle for actuating said bolt, means operable from one side of the door for rotating said spindle and moving the same longitudinally from one position to another, means preventing the rotation of the spindle in one of said positions, a thrust member connected to said spindle for longitudinal displacement therewith, and means independent of said first means operable from said side of the door to move said member to release the spindle from the second means.

13. A door lock comprising a latch bolt, a rotatable and longitudinally displaceable spindle for actuating said bolt, means operable from one side of the door for rotating said spindle and moving same longitudinally from one position to another, a plate held against movement relative to the door and in which said spindle is slidably disposed and arranged to be held for or against rotation in the different positions aforesaid, means to resiliently move the spindle to said latter position, a thrust member fixed to said spindle for longitudinal movement therewith, and held against rotative movement therewith, and a rotatable cam member operable from said side of the door independent of said first means and arranged to move said thrust member to release the spindle for rotation in the plate.

14. A door lock in accordance with claim 13 characterized by key controlled means for locking said cam member to prevent the movement thereof to release the spindle for rotation.

15. A door lock comprising a latch bolt, a rotatable and longitudinally displaceable spindle for actuating said bolt, means operable from one side of the door for rotating said spindle and moving same longitudinally from one position to another, means inclependent of said first means for moving said spindle longitudinally as aforesaid, and key controlled means for preventing said last movement.

16. A door lock comprising a latch bolt, a rotatable and longitudinally displaceable spindle for actuating said bolt, means operable from one side of the door for rotating said spindle and moving same longitudinally from one position to another, means inde pendent of said first means for moving said spindle longitudinally as aforesaid, and key controlled means for preventing said longitudinal movement of the spindle by either of said first means.

17. A door lock comprising a latch bolt, a rotatable and longitudinally displaceable spindle for actuating said bolt, means operable from one side of the door for rotating said spindle and moving sa-me longitudinally from one position to another, means independent of said first means for moving said spindle longitudinally as aforesaid, a lever carried by said first means and arranged to engage said second means to prevent longitudinal movement of the spindle thereby, and key controlled means for operating the lever.

18. In a door look, a latch bolt, 2. spindle for actuating said bolt, a knob sleeve secured to said spindle at one side of the door, a plate through which said spindle extends and held in fixed relation to said door, an escutcheon plate, and means to releasably secure said plates together comprising a cooperating lug thereof access to said first means for releas- 1 ing same, and key-controlled means for looking said member in another position to prevent access to said first means.

20. In a door lock, a latch bolt, an axially displaceable spindle for actuating said bolt, a knob secured to the spindle for moving the same from one position to another, means to releasably secure said knob to the spindle, a member operatively associated with the spindle and knob preventing and permitting access tosaid first means in the difierent positions aforesaid, and key controlled means for locking said member in the position preventing access to said first means.

21. In a door look, a latch bolt, a rotatable and longitudinally displaceable spindle for actuating said bolt, means operable from one side of the door for moving said spindle longitudinally from one position to another, means for preventing the rotation of the spindle in one of said positions, means for preventing the dismantling of the lock in said last position, and key controlled means locking said last means in position for preventing said dismantling of the lock.

22. In a door look, a latch bolt, a rotatable and longitudinally displaceable spindle for actuating said bolt, a knob secured at one end of said spindle to move the same longitudinally from one position to another, means locking the spindle against rotation in one of said positions, means releasably securing said knob to said spindle, a rotatable member for moving said spindle from one of said positions to the other and preventing access to said knob securing means when the spindle is held against rotation, said member having an opening affording access to said securing means when the spindle is released for rotation, and key controlled means for looking said member in the position'preventing access .to said securing means. v i 7 Y 'J r 23; In a door lock, a latch bolt, a: rotatable spindle arranged to'be moved longitudinally v from one position .to another,'a reciprocating' member movable, tangentially of the spindle, and means on said spindle arranged in one of said positions for cooperation with 7 said member to effect rotationof the spindle 1 and out of such cooperation in theother of saidpositions. a g F 245. A door lock in accordance with claim 23' characterized by means on the spindle arranged in the last mentioned position thereof to cooperate with said member to prevent rotation of the spindle by said member. 1

25. In a door lock, a'latc-h bolt, a rotatable actuator for moving said bolt, a spindle arranged to be moved longitudinally from one position to another and comprising relatively rotatable sections arranged to lie within'said actuator in both of said positions, one of said sections allowing relative rotation of the other in one of'said positions and preventing relative movement in the other position.

26. In a door look, a latch bolt a rotatable actuator fo-rmoving said bolt, a spindle arranged to be moved longitudinally from one position to another and comprising relatively rotatable sections for effecting the rotation of the actuator, one-of said sections allowing the relative rotation of the actuator and other section in one of said positions and held for rotative movement with saidactuator in the other of said positions. a 1

In testimony whereof, I have hereunto set my hand at Oakland, California, this 25th day of February, 1929. r l a JOHN'A. RYMER.

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