US3048996A

US3048996A - Rose blocking knob

Info

Publication number: US3048996A
Application number: US56780A
Authority: US
Inventors: Fred J Russell; George B Solovieff
Original assignee: Individual
Current assignee: Individual
Priority date: 1960-09-19
Filing date: 1960-09-19
Publication date: 1962-08-14
Anticipated expiration: 1979-08-14

Description

Aug. 14, 1962 F. .1. RUSSELL ET AL 3,048,996

ROSE BLOCKING KNOB Filed Sept. 19, 1960 2 Sheets-Sheet 1 BY 3M Mam aa/n/ ATTOQH EVS Aug- 14, 1962 F. J. RUSSELL ETAL 3,048,996

ROSE BLocKING KNOB 2 Sheets-Sheet 2 Filed sept. 19, 1960 IN V EN TORS Faso J RUSSE/L GEO/Q65 B. ,5o/ o V/EFF ATTORNEYS Patented Aug. 14, 1962 3,048,996 ROSE BLOCKHNG KNOB Fred J. Russell, 3800 Don Felipe Drive, Los Angeles, Calif., and George B. Solovietf, South Gate, Calif.; said Solovietf assigner to said Russell Filed Sept. 19, 1960, Ser. No. 56,780 3 Claims. (Cl. 71E- 216) The invention relates to door locks of the conventional type used on both `outside doors and inside doors, the structural subject matter being more directly related to a means for temporarily locking one of the knobs to a stationary portion `of the device, thereby to prevent opening of the door.

In the type of door hardware which has been developed during recent years featuring the location of key-actuated mechanisms in the door knob, the customary expediment has been to provide a temporary interconnection or locking arrangement between some stationary element of the locking device which is fastened to the door and the spindle, thereby to bar manipulation of the latch bolt through use of the handle when the door is locked. Due to the necessarily compact character of locks of this nature, means heretofore devised have been unsatisfactory or objectionable due to a variety of reasons such as complexity, high cost, lack of durability over long periods of use, and also in some instances due to the fact that mechanism used to bar withdrawal of the latch bolt is housed in the inner door knob and uses the thus blocked spindle as the medium by which the outside knob is made nonrotatable.

It is therefore among the objects of the invention to provide a lock mechanism of such construction that mechanical locking parts manipulated by the key-actuated mechanism lie all on the same side of the lock device as the key-actuated mechanism and attach directly to a stationary portion of the locking device on the same side of the door.

Another object of the invention is to provide a lock with a mechanism which blocks the knob against rotation by connecting it temporarily directly to the adjacent rose by a simple expedient housed within the rose and the knob shank, operative in such fashion that it can be readily released when desired.

Another object of the invention is to provide an effective, positive means for blocking the knob against rotation and moreover one which lends itself readily when desired to llocking or unlocking the knob from either side of the door.

Still further among the `objects of the invention is to provide a lock, the structure of which is simple and inexpensive but at the same time which is rugged and dependable.

With these and other objects in view, the invention consists in the construction, arrangement and combination of the various parts of the device, whereby the objects contemplated are attained, as hereinafter set forth, pointed out in the appended claims and illustrated in the accompanying drawings.

In the drawings:

FIGURE l is a side elevational view partially broken away showing the parts of the lock in unlocked condition of adjustment.

FIGURE 2 is a view similar to FIGURE l showing the parts in locked condition of adjustment.

FIGURE 3 is a cross-sectional view on the line 3-3 of FIGURE l.

FIGURE 4 is a cross-sectional View on the line 4-4 of FIGURE l.

FIGURE 5 is a cross-sectional View on the line 5 5 of FIGURE l.

FIGURE 6 is a cross-sectional view on the line 6 6 of FIGURE 2.

FIGURE 7 is a fragmentary side elevational view with parts broken away to a lesser extent than FIGURES l and 2 and showing the parts in unlocked condition of adjustment, and in a position 9() degrees removed from the position of FIGURES 1 and 2.

lFIGURE 8 is a view similar to FIGURE 7 showing the parts in locked condition of adjustment.

In an embodiment of the invention chos-en for the purpose of illustration the parts of the device in which the invention is incorporated may be identified generally as an operating assembly indicated by the reference character 10 rotatably mounted upon a rose or escutcheon assembly indicated generally by the reference character 11. A spindle 12 extends from the interior of the operating assembly toward the location where the usual latch bolt mechanism (not shown) is encountered.

The rose or escutcheon assembly 11 consists of various parts constituting what may be described as a stationary portion of the device comprising in the main a fastening plate 13 upon which is mounted a pair of

index posts

14 and 15 which serve as a means by which the operating assembly and its appropriate escutcheon assembly on one side `of the door is attached to its counterpart (not shown) on the other side of the door and in stationary position on the door itself following conventional practice. Also forming part of the rose or escutcheon assembly is a bearing sleeve 22 which has a flange 16 fastened non-rotatably in the plate 13, thereby becoming a part of the stationary portion of the device. A decorative rosette 17 of substantially conventional construction surrounds the bearing sleeve and is attached by appropriate conventional means to the place 13, thereby substantially completing the rose or escutcheon assembly.

Of special consequence in the structure-` and operation of the invention is the provision of an annular recess 18 located on an inner wall 19 of the bearing sleeve intermediate outside and inside ends. A lock-slot 26 in the bearing sleeve 22 extends from the annular recess 18 inwardly toward the inner end of the sleeve and a lock-slot 21 is located on the other side.

The operating assembly 10 includes a knob Z4 having a shank 25 thereon, the shank 25 having a reduced portion 26 rotatably mounted within the bearing sleeve 22. The reduced portion extends through the escutcheon assembly to which it is fastened by an appropriate snap ring 23 so that once in assembled position, the operating assembly and the escutcheon assembly are secured together with the operating assembly rotatably mounted in the escutcheon assembly. The snap ring 23 overlies a lock ring 123 by means of which the parts are contained within the rose assembly.

Within the knob is a key-actuated mechanism indicated generally by the reference character 27 which includes an appropriate tail-piece 28 positioned to engage alternatively

shoulders

29 and 30 `of a washer to provide for a degree of lost motion between rotation of the knob `and the key-actuated mechanism las is customary in devices of this kind. A tail-piece extension 32. is non-rotatably engaged with the key-actuated mechanism and includes a projection 33 engageable alternatively against shoulders .34 and 35 of a collar 36. In order to hold the key-actuated mechanism in place, ya threaded projection 37 of a plug 38 is engaged with an internally threaded cap 39, the cap being provided with a diametrically extending slit 40 within which a tongue 41 of the tail-piece extension 32 is contained, thus holding the threaded cap 39 `and plug 38 in non-rotational relationship `as long as the tongue 41 remains in place.

.Near the end of the spindle 12, which is located within the collar 36, is a lock bar 45. By reason of the fact that the spindle 12 is square in the embodiment chosen, a squared aperture 46 in the lock bar contains the spindle non-rotatably with respect to the lock bar. The lock bar includes two ends 47 `and 48 which extend diametrically outwardly from the center. The collar 36 is provided with a pair of identical cam slots 50 and 5l, one of which is iclearly shown in FIGURE 8. Each cam slot has a sloping cam track 52 which follows the wall of the collar 36 in an arcuate direction `and is provided with a shallow recess 53 at the bottom. In the reduced portion Z6 of the shank 25 there is provided a pair of axially extending

passages

54 and 55. Accordingly, the end 47 of the lock bar 45 extends radially outwardly first through the cam slot 50, then through the axially extending passage 54 and ultimately into either the annular recess 18, as shown in FIGURE l, or into the lock-slot 2t), as shown in FIG- URE 2, depending upon the adjustment of the device. Similarly the end 48 of the lock bar extends first through the cam slot 5l, thence through the axially extending passage 55 into either the recess I8 or the lock-slot 21, depending upon the adjustment of the device. If desired, the lock bar 45 may be spring urged in a direction from left to right, as viewed in FIGURE l, by action of a coiled spring 56 which is conned between the lock bar and a spring keeper 57 held in position on the spindle by a bead 58.

Following customary construction in devices of this kind there is provided a torsion spring assembly, identifled generally by the reference character 60, including a torsion spring 61 which acts through appropriate mechanism to return the spindle and operating assembly to initial po-sition after each successive rotation.

In explaining the operation of the device, it may be assumed that the parts are initially in the positions illustnated in FIGURES 1, 5 and 7, for example. As there shown, the collar 36 has been rotated so that the dock bar 45 has been moved toward the left lby action of the cam tracks 52 compressing the spring 56. The ends of Ithe lock bar will in this position of adjustment ride in the recess 418. Hence, even though the lock bar is nonrotatably secured to the spindle -and is also non-rotatably connected to the shank 25, the shank and the knob accordingly will rotate freely because of the freedom of rotation of the ends yof the lock bar in the `annular recess.

When the knob is to be tlocked, the key-actuated mechanism is rotated appropriately which, through the tail-piece extension 32, rotates the collar 36 from the position of FIGURES l, 5 and 7 to the position of FIGURES 2, 6 and 8. As the

cam slots

50 and 51 move relative to the

respective ends

47 and 48 of the lock bar, the spring 56 expands `and the ends slide down the cam tracks 52 until they nest in the recesses 53 at the bottoms. During this motion the

ends

54 and 55 move out of the annular recess 18 and pass respectively into the lock-slots 20 and 2l, as clearly shown in FIGURES 2 and 6'. When this position has .been achieved, the lock bar 45 is non-rotatably connected to the stationary portion of the device, as exemplified by the bearing sleeve 22 and 4accordingly the escutcheon assembly. This being stationary and by reason of the fact that the lock b-ar positioned a-s described in the axially extending

passages

54 and 55 in the shank, is nonrotatable relative to the shank, therefore, the shank and accordingly the operating assembly becomes 'anchored non-rotatably to the escutcheon assembly. Accordingly, the knob 24 cannot be rotated and =as a consequence the latch bolt cannot be withdrawn by manipulation of the knob.

When the device is to be unlocked, it must be done so by use of a key rotating the parts in an opposite direction. This results in a rotation of the collar 36 in the opposite direction forcing the

ends

47 and 48 upwardly along the cam tracks 52 from the position of FIGURE 8, for example, to the position `of FIGURE 7. During this movement the

ends

47 and 48 pass from the respective lock-slots and 21 into the recess I8, once `again freeing the knob for rotation.

`By Virtue of the structure hereinabove described, it is clear that compactly mounted within the rose or escutcheon assembly on the same side of the door as the operating assembly is a simple, rugged means by which the knob vcan be anchored -against rotation when the mechanism is appropriately manipulated by a key-actuated mechanism in the same knob as the knob which is to be barred from rotation. Because of the proximity, the parts may be maintained small, simple and compact. Further still, the shift between locked and unlocked positions can be achieved by virtually a minimum degree of movement of the parts, both rotationally and axially, thereby resulting in the positive and effective blocking oper-ation which the invention has been constructed to achieve.

Also, it should be recognized that the spring urging of the lock bar 45 by the spring 56 readily could be reversed so that the lock-bar 45 could be cammed into Ilocking position and spring urged into unlocked posi-tion. Also the cam tracks could ybe so designed as to move the lock bar 45 in either direction without aid or existence of the spring.

It should be recognized also that the collar 36 could as readily Ibe rotated by the tail-piece extension 32 which could be joined to a locking-unlocking mechanism in the inside knob (not shown) by a tail-piece operator which would extend from the inside knob to the tail-piece extension through a hollow spindle which could replace the solid spindle 12. This combination `could be used when lock-ing and unlocking from the inner side of the door.

While 4the invention has herein been shown and described in what is conceived to ybe the most practical and preferred embodiment, it is recognized that departures may be made therefrom within the scope of the invention, which is not to be limited to the details disclosed herein but is to be accorded the full scope of the claims so as to embrace any and all equivalent devices.

Having described `the invention, What is claimed as new in support of Letters Patent is:

1. A door lock device comprising a mounting rose assembly adapted to be secured upon a door in a relatively stationary position and having a bearing aperture therethrough, an operating assembly including a mounting portion thereof rotatably mounted in said aperture, said 'rose assembly having an annular recess ltherein and a lockslot extending axially from said annular recess, a spindle, and a lock-bar having a non-rotatable and axially movble mounting on said spindle, said operating assembly mounting portion having an axially extending passage land said lock-bar being located in said passage, said spindle :having an non-rotatable connection with said operating assembly, means for moving said lock-bar into one position whereby a portion of said lock-bar extends into said annular recess thereby to permit rotation of said operating assembly relative to said rose and means for moving said lock-bar into another position whereby a portion of said lock-bar extends into said lock-slot thereby to connect said operating assembly in non-rotatable engagement with said rose.

2. A door lock device comprising la mounting rose assembly adapted to be secured upon a door in a relatively stationary position and having a bearing aperture therethrough, an operating assembly including a mounting portion thereof rotatably mounted in said aperture, said rose assembly having an annular recess therein and a llock-slot extending axially from said annular recess, a spindle, and a lock-bar having .a non-rotatable and axially movable mounting on said spindle, said lock-bar comprising .a non-rotatable connection between said spindle yand "said operating assembly, means for moving said lock-bar into one position whereby a portion of said lockbar extends into said annular recess thereby to permit rotation of said operating assembly relative to said rose and means for moving said lock-bar into another position whereby a portion of said lock-bar extends into said lockslot thereby to connect said operating assembly in nonrotatable engagement with said rose, said means for moving said lock-bar including a cam.

3. A door lock device comprising a mounting rose assembly adapted to be secured upon a door in a rela- Itively stationary position and having a bearing aperture therethrough, an operating assembly including a mounting portion thereof rotatably mounted in said aperture, said rose assembly having an annular recess therein vand a lock-slot extending axially from said annular recess, a spindle, and a lock bar having a non-rotatable and axially movable mounting on said spindle, said operating assembly mounting portion having an axially extending passage and said lock bar being located in said passage and forming thereby a non-rotatable connection between said spindle and said operating assembly, means for moving said lock bar into one position whereby a portion of said lock bar extends into said annular recess thereby to permit rotation of said operating assembly relative to said rose and means for moving said lock bar into another position whereby a portion of said lock bar extends into said lock-slot thereby to connect said operating assembly in non-rotatable engagement with said rose, said means for moving said lock bar including a earn which moves said lock bar in one direction and enables said lock bar to be moved in another direction.

North July 4, 1933 McConnell et al Dec. 21, 1954