US3117813A - Push-turn button retaining means in shank end - Google Patents

Description

Jan. 14, 1964 3,117,813

PUSH-TURN BUTTON RETAINING MEANS IN SI-LANK END Filed Oct. 2, 1961 F. J. RUSSELL EIAI.

2 Sheets-Sheet 2 INV EN T0128 FEED J; RUSSELL GEORGE B. SOLOV/EFF 3% a ATTORNEYS United States Patent 3,117,813 PUSH-TURN BUTEGN RETAINING IVlEANS IN END Fred 3. Russell, Los Augeies, Calif. (8635 his St, South Gate, Caliil}, and George B. Solovieir", South Gate, Calif; said Soloviefi assigns: to said Russell Filed Get. 2, 1961, Ser. No. 142,354 2 Claims. (Cl. 292359) The invention relates to door locks of the compact variety, with design and relationship of the sundry parts providing for locking and unlocking of the outside operating member by the operation of a push-turn button in the inner operating member.

Among the objects of the invention is to provide a new and improved construction and relationship whereby configurations on the end of an inner operating member shank serve to hold a push-turn locking and unlocking button in extended or retracted positions as desired.

Another object of the invention is to simplify the number and nature of parts involved in a locking and unlocking button mechanism and to make such a mechanism more reliable.

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 1 is a fragmentary longitudinal sectional View showing the lock in unlocked condition.

FIGURE 2 is a longitudinal sectional view taken in a direction ninety degrees removed from the view of FIG- URE 1 with the parts in unlocked condition.

FIGURE 3 is a fragmentary longitudinal sectional view similar to FIGURE 1 but with the parts in locked condition.

FIGURE 4 is a fragmentary longitudinal sectional view similar to FIGURE 2 but with the parts in locked condition.

FIGURE 5 is a side elevational view partially broken away showing the relationship or" parts in unlocked condition.

FIGURE 6 is a side elevational view similar to FIG- URE 5 but with a portion of the parts removed for greater clarity and showing the relationship of parts in locked condition.

FIGURE 7 is an end elevational view of the inside end of the shank on the inner operating assembly.

FIGURE 8 is a fragmentary side elevational view taken on the line 88 of FIGURE 7.

FIGURE 9 is an exploded perspective view of the parts making up the locking and unlocking mechanism.

In an embodiment of the invention chosen for the purpose of illustration, there is shown an inner operating assembly embodied in a knob having a shank 11 thereon rotatably mounted and secured within a mounting plate 12 over the exterior of which is applied a decorative rosette 13. An outer operating assembly is designed to be employed with the device but is of substantially conventional construction sufiicient that there is shown only a hollow square tubular outer spindle 14 designed to be anchored to an outer knob (not shown) and a solid square spindle 15 of the type ordinarily actuated by a key actuated mechanism.

A collar 16 bears against the inside surface of the mounting plate 12 and is held in place by employment of a snap ring 17 secured in an annular groove 18 on the shank 11. Mounted in this fashion, the knob and shank rotate freely with respect to the mounting plate 12 and are firmly held in position in an axial direction.

3,ll7,8l3 Patented Jan. 14, 1954 ice A button 19 shown in FIGURE 1 forms part of a locking actuator normally rotatably mounted in the knob 10 upon which is an extension 20 which projects through the knob and has attached thereto a sleeve 21 concentrically located within the shank 11 and adapted both to rotate within the shank and to move a short distance ax ally with respect to the shank in response to manipulation of the button 19.

A bracket 22 has legs 23 of a length sufiicient to space a face plate 24 of the bracket at a substantial distance inwardly of the mounting plate 12. Feet 25 of the bracket are attached by means of tabs 26 securely to the mounting plate so that the bracket 22 and the mounting plate 12 together form a stationary part of the mechanism when the device is mounted in a door.

In the space between the legs 23 and beneath the face plate 24 are the parts which comprise the locking mechanism. Among these parts is a lock washer 30 the form and configuration of which is well illustrated in the perspective exploded view, FIGURE 9. The lock washer is impressed in a direction from right to left as viewed in FIGURES 1 through 4 inclusive by action of a coiled spring 31, one end of which is kept in a recess 32 at the underside of the face plate 24- and the other end of which impresses against the lock washer. On the lock washer is a series of four locking projections 33; which are adapted to extend into complements: openings 34 under conditions when the lock is locked. These parts are all advantageously illustrated in FIGURE 9 and show also in their sundry operated positions in FIGURES 1 through 4 inclusive. Although the lock washer is free to shift axially, it is held nonrotatably relative to the collar 16 by employment of prongs received in recesses 37. The collar in turn is retained nonrotatable with respect to the shank 11 by use of projections 38 which are received in slots 39 of the shank. The square spindle 14 is slidably received in a square hole 40 of the lock washer 30. The lock washer by this means is nonrotatably mounted with respect to the square spindle and hence the outer operating assembly.

The sleeve 21 previously described as being connected and subject to rotation by the button 19 has a noncircular opening 41 at the inside end into which extend detents 42, four in number. Spaces 43 between the detents accommodate corners of the hollow square spindle 14 and provide for a degree of lost motion between the square spindle and the sleeve. This lost motion makes it possible to rotate the locking actuator embodied in the button 19, the extension 20 thereon and the sleeve 21 when the solid spindle 15 is held in nonrotatable position as a part of the locked key-actuated mechanism housed in the outer knob (not shown).

On the sleeve 21 is a pair of cams or camming projections 44. In unlocked condition of the parts, the cams 44 are slidably received in the slots 39 as shown in FIGURES 1 and 5. In this position the button 19, of course, cannot be rotated relative to the knob 19. The button 19, however, can be moved axially inwardly from left to right as viewed in FIGURES 1 and 4 inclusive, and this motion is sufiicient to enable the cams 44 to move out of the slots 39. As the sleeve 21 is moved from left to right to relieve the cams from engagement with the slots, the sleeve moves against the lock washer 3t), shifting the lock washer likewise from left to right until the locking projections 33 protrude into the openings 34 in the bracket. This locks the spindle 14 against rotation. To retain this locked relat onship the sleeve 21 is then rotated until the cams 44 are received in cam recesses 4-5 which are provided in an end edge .6 of the shank 11. In this position by reason of having the cams rest in the cam recesses, the sleeve 21 is held in extended position and hence the locking projections 33 are retained in the openings 34.

Accordingly, the outer operating assembly is locked as long as this condition prevails.

When the device is to be'unlocked, the button 19 is rotated in reverse direction, namely, clockwise, as viewed in FlGURE 6 until the cams are removed from the cam recesses 45 and rotated to positions opposite the slots 39, whereupon the cams are received in the slots 39, and the sleeve 21 is then moved from right to left, as viewed in FIGURES 1 through 4 inclusive, by pressure of the spring 31 until it is returned to the position illustrated in FIGURES 1 and 2.

It Will be apparent therefore that there need be but few working parts of the device to provide for locking or unlocking of the outside operatin assembly by manipulation of a button on the inside operating assembly, the result of which is to so space and position tie cams, cam recesses and slots as to accomplish the desired locking or unlocking.

Although not essential to an understanding of the invention herein disclosed, it should be understood that the solid square spindle 15 might have a rotational engagc-' ment (not shown) with a key-actuated mechanism and therefore may be turned to unlocked condition by operation of a key in the outer operating assembly whereby to open the door from the outside.

While the invention has herein been shown and described in what is conceived to be 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. In a door lock having an outer operating member, a stationary means, an inner operating member, a shank thereon rotatably mounted in said stationary means and a collar on said shank, a locking actuator in said inner operating member having an axially movable mounting relative to said stationary member and said shank, said actuator being rotatable relative to said stationary means and said shank in a first axially shifted position, a lock washer having an axially slidable and nonrotatable engagement with said outer operating member, said lock washer having a locking engagement with said stationary means in a first axially shifted position, an extension on said collar extending into nonrotatable engagement with said lock washer, said lock washer being movable axially by said locking actuator to said first axially shifted position and said locking actuator being rotatable relative to said lock washer in said first axially shifted position, said locking actuator and said shank having detaining means in mutually releasable engagement in said first axially shifted position whereby to retain said outer operating member in a locked relationship, said locking actuator having a nonrotatable engagement with said shank in a second axially shifted position.

2. In a door lock having an outer operating member, a stationary means, an inner operating member, a shank thereon rotatably mounted in said stationary means and a collar on said shank, a locking actuator in said inner operating member having an axially movable mounting relative to said stationary member and said shank, said actuator being rotatable relative to said stationary means and said shank in a first axially shifted position, a lock washer having an axially slidable and nonrotatable engagement with said outer operating member, said lock washer having a locking engagement with said stationary means in a first axially shifted position, an extension on said collar extending into nonrotatable engagement with said lock washer, said lock Washer being movable axially by said locking actuator to said first axially shifted position and said locking actuator being rotatable relative to said lock washer in s id first axially shifted position, a first cam element on said locking actuator and a cornplementary cam element on an endwardly facing edge of said shank having a detainin releasable engagement with said first cam element in said first axially shifted position whereby to retain said outer operating member in a locked relationship, said locking actuator having a nonrotatable engagement with said shank in a second axially shifted position.

References Cited in the tile of this patent UNITED STATES PATENTS 2,434,288 Schlage Jan. 13, 1948 2,769,911 Russell June 7, 1955 2,733,946 North et al. Feb. 7, 1956 3,025,096 Williams Mar. 13, 1962

Claims (1)

1. IN A DOOR LOCK HAVING AN OUTER OPERATING MEMBER, A STATIONARY MEANS, AN INNER OPERATING MEMBER, A SHANK THEREON ROTATABLY MOUNTED IN SAID STATIONARY MEANS AND A COLLAR ON SAID SHANK, A LOCKING ACTUATOR IN SAID INNER OPERATING MEMBER HAVING AN AXIALLY MOVABLE MOUNTING RELATIVE TO SAID STATIONARY MEMBER AND SAID SHANK, SAID ACTUATOR BEING ROTATABLE RELATIVE TO SAID STATIONARY MEANS AND SAID SHANK IN A FIRST AXIALLY SHIFTED POSITION, A LOCK WASHER HAVING AN AXIALLY SLIDABLE AND NONROTATABLE ENGAGEMENT WITH SAID OUTER OPERATING MEMBER, SAID LOCK WASHER HAVING A LOCKING ENGAGEMENT WITH SAID STATIONARY MEANS IN A FIRST AXIALLY SHIFTED POSITION, AN EXTENSION ON SAID COLLAR EXTENDING INTO NONROTATABLE ENGAGEMENT WITH SAID LOCK WASHER, SAID LOCK WASHER BEING MOVABLE AXIALLY BY SAID LOCKING ACTUATOR TO SAID FIRST AXIALLY SHIFTED POSITION AND SAID LOCKING ACTUATOR BEING ROTATABLE RELATIVE TO SAID LOCK WASHER IN SAID FIRST AXIALLY SHIFTED POSITION, SAID LOCKING ACTUATOR AND SAID SHANK HAVING DETAINING MEANS IN MUTUALLY RELEASABLE ENGAGEMENT IN SAID FIRST AXIALLY SHIFTED POSITION WHEREBY TO RETAIN SAID OUTER OPERATING MEMBER IN A LOCKED RELATIONSHIP, SAID LOCKING ACTUATOR HAVING A NONROTATABLE ENGAGEMENT WITH SAID SHANK IN A SECOND AXIALLY SHIFTED POSITION.

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