US2021443A - Lock mechanism - Google Patents

Description

NOV, 19, 1935. DEUTSCH 2,021,443

LOCK MECHANISM Original Filed Jun 25, 1 5 Sheets-Sheet 1 INVENTOR ATTORNEY Nov. 19, 1935. 1.. E. bEu'rscl-l LOCK MECHANI SM 5 Sheets-Sheet 2 Original Filed June 25, 1934 Zea E. lie/M35070 Nov. 19, 1935. L E, DEUTg 2,021,443

LOCK MECHANISM Original Filed Jun 25, ,1954 5 Shets-Sheet 5 Q Q y; l5.

Zea E Denise? ATTORNEY Nov. 19, 1935. u sc 2,021,443

LOCK MECHANISM I Original Filed June 25, 1954 5 s t -s t 4 Z60 E- flew/$50k INVENTOR ATTORN EY Nov. 19, 1935. L. E. DEUTSCH 2,021,443

LOCK MECHANISM Original Filed June 25, 1934 5 Sheets-Sheet 5 INVENTOR ATTORNEY Patented Nov. 19, 1935 PATENT OFFICE LOCK MECHANISM Leo E. Deutsch, Hammond, Ind., assignor to Marshall William Deutsch, Hammond, Ind.

Application June 25, 1934, Serial No. 732,344 Renewed October 2, 1935 6 Claims.

The invention relates to a lock mechanism and more especially to a key operated combination lock.

The primary object of the invention is the provision of a lock mechanism of this character wherein, through the medium of intermediaries between actuators and tumblers within the barrel of the lock, the combination of the same can be altered or changed at the option of the user of said lock, thereby eliminating the possibility of the operation of the lock by one gaining knowledge of a former combination thereof, because said. combination can be changed with dispatch on the removal of the barrel from the casing of the lock.

Another object of the invention is the provi-,

sion of a lock mechanism of this character, wherein the casing for the barrel of the lock is made secure in a mounting, so that it will be impossible to bodily remove the lock in its entirety from said mounting, except by one having complete knowledge of the fastening of the lock casing in the mounting and the possessor of the key for the look.

A further object of the invention is the provision of a lock mechanism of this character, wherein the assembly of the actuators and the tumblers, as well as other adjuncts, is novel and the changing or altering of the combination of the lock is made possible with dispatch and without the disassembly of the actuators and tumblers as controlled. 1

A still further object of the invention is the provision of a lock mechanism of this character, wherein a permutationkey is usable with the lock mechanism and is automatically set congruous with the combination or permutation of the lock proper, so that by the use of this, key

the mechanism can be actuated for locking and unlocking purposes and it being impossible for other than the authorized user of the lock to effect manipulation of such look under the combination set thereof.

A still further object of the invention is the provision of a lock mechanism of this character which is comparatively simple in its construction, thoroughly reliable and efiicient in its operation, compact in its assembly, novel in its construction, strong, durable, easily operated by its legitimate key, and inexpensive to manufacture.

With these and other objects in view, the invention consists in the features of construction, combination and arrangement of parts as will be hereinafter more fully described in detail,

illustrated in the accompanying drawings, which disclose the preferred embodiment of the invention, and pointed out in the claims hereunto appended.

In the accompanying drawings: 5

Figure 1 is a transverse sectional view through the lock constructed in accordance with the invention.

Figure 2 is a front elevation of the same.

Figure 3 is a sectional view taken on the line 10 33 of Figure 1.

Figure 4 is a sectional view on the line 4-4 of Figure 1.

Figure 5 is a sectional View on the line 5-5 of Figure 1.

Figure 6 is a sectional View on the line 6-6 of Figure 1.

Figure 7 is a sectional view on the line 1-1 of Figure 1.

Figure 8 is a perspective view of the barrel 20 removed from the lock casing.

Figure 9 is a vertical transverse sectional View taken midway of the barrel casing.

Figure 10 is a rear elevation.

Figure 11 is a perspective view of one of the 25 tumblers of the lock mechanism.

Figure 12 is a perspective view of the assembly of the actuators for the tumblers.

Figure 13 is a perspective view of one of the actuators.

Figure 14 is a perspective view of an intermediary member between the tumblers and actuaors. Figure 15 is a fragmentary elevation showin the relationship of an actuator, tumbler and in- 35 termediary member.

Figure 16 is a fragmentary sectional view showing the cooperative latch for an intermediary member.

Figure 1'7 is a perspective View of a key for the 40- Figure 23 is a perspective View of one of the tumblers of the permutation mechanism of the lock.

Similar reference characters indicate corresponding parts throughout the several views in the drawings.

Referring to the drawings in detail, the lock comprises an outer shell or casing A and an inner turning barrel B, respectively, these being of cylindrical form. The casing A is provided with an open front end while the rear end car ries an annular tumbler-engaging rim or flange l0 providing an open center and having a series of spaced holes ll, these being in-groups diametrically opposite and spaced an equidistance apart in the respective groups, they being the tumbler receiving holes which are concealed by a covering disk I2 having formed thereon the lock bolt actuator l3, this being at the outer side of said disk. The disk I2 is rotatably attached to the casing lit by a separable collar M having the overlapping periphery I5 counterseated, at it, concentrically about the open center of the disk I2. I

The barrel B is removably fitted within the casing A and is separably latched therein through the medium of a latching lug ll externally of the barrel and at an intermediate point, it being adapted to slidably fit in a longitudinal channel or groove 58 in the internal face of the casing A, and this channel or groove, at its inner end, opens or merges into a half-circular keeper channcl or groove I9 disposed circumferentially in the inner face of the casing A, so that when the lug ll' traverses inwardly of the channel or groove i8 and makes entrance to the channel or groove is by a turning of the barrel, the lug ll will play into the channel or groove l9 thus separably locking thebarrel B within the casing A,

this being clearly illustrated in Figure l of the drawings.

The inner end of the barrel B has centrally formed therewith and projected therefrom a squared axis lug 20 which removably fits in correspondingly shaped openings in the collar H3 and the disk [2, so that upon the turning of the barrel a like motion will be imparted to the disk 52 and through this motion the lock bolt is thrown to looking or releasing position, the lock bolt being not shown and being associated with the lock bolt actuator l3 in any approved manner.

The casing A has formed therein, near its open front end, diametrically opposed lateral openings 2! for accommodating securing pieces 22 which, when arranged within the seats 23 therefor internally of the casing A, will project laterally exteriorly of this easing into suitable sockets in the mounting for the casing or the lock in its entirety and thus make fast the said casing in the mounting. These pieces 22, when engaged in the seats 23, are confined therein by the barrel B fitting within the casing and can only be removed when the barrel is separated from said casing. 1

Detachably carried at the front end of the barrel B is a keyhole plate 24 which is of circular form and constitutes the front face of the barrel, it; being detachably secured by fasteners 25, these being engaged therewith from the inside of the barrel B. This plate 24 has fitted therewith a tumbler engaging ring 26, the plate 2 being rotatable in the latter and with the barrel. The ring 26 has peripherally thereof the diametrically opposed segmental-shaped ears 2?,

these being received in companion notches 28 formed internally of the casing A at the open front end thereof, so that the ring 25, when so engaged, will remain fixed, while the barrel B and the plate 2 will rotate Within the casing A. 5 This ring 25 has formed therein the series of holes 28 for the tumblers of the lock mechanism and such holes are grouped alike to the holes H and aligned therewith when the barrel is fitted within the casing.

The plate M has the keyhole 3E3 aligned with the keyway 3| in the barrel, while disposed within the barrel B are displaceable actuator members 32 for the tumblers These members and said tumblers are slidably fitted in clearances 34 and 15 35, respectively, as provided in the barrel. The actuator members 32 are nested with respect to each other in the clearance Ed in the barrel B, as is clearly illustrated in Figure 12 of the drawings, and have the abutments located in the keyway 3| for the actuation of these members by an unlocking key 377 when inserted through the hole 38 into the way 35 therefor in the barrel for the operation of the lock.

The tumblers 33, at opposite ends, have the locking projections 38 to be alternately accommodated in the respective holes M and provided therefor, the actuator members 32 being normally advanced forwardly under the action of coiled compression springs these being accommodated within the barrel B, so that normally the members are in the position shown in Figures 1 and 12 of the drawings and the same are selectively, under the combination of the lock and the unlocking key, displaced for 35 the actuation of the tumblers 33 in the operation of the lock.

Located between the actuator members and the tumblers 33' are intermediary members or combination changers, each comprising a straight 40 a companion actuator member 32 to its tumbler 45 33, the latter being provided with spaced notches 43 for the said sector 4!, while the companion actuator member 32 has the single notch 34 for said sector, and on the turning of the bar the sector can be selectively engaged with the de- 50' sired notch 43 in the tumbler 33 while engaged with the notch M in the member 32, and in this fashion the tumbler combination of the lock can be altered or changed. Each bar ill has formed thereon flat faces 35 with which engages a 55 spring pressed friction hold .6 so that the bar 40, when turned, can be held in its turned position for the engaging of the sector AI in the notches 43 and M.

The bores 42 for the bars 40 are extended 60 through the barrel B at its inner end, so that such bars can be accessible when the barrel B is removed from the casing A, and through a suitable resetting key (not shown) engaging non-circular turning notch ll in the exposed end of the bar 49 the latter can be turned for the setting of the sector M there-onto alter or change the combination of the look. It should be apparent that those actuator members 32 connected with selected tumblers 33 will be moved by the key 3? foractuation of the lock to release the barrel B so that it can be turned, it being understood, of course, that the other turnblers unaffected by the key are in neutral position, while those tumblers affected by the key are normally in looking position with the casing.

Arranged within the keyway 3| is a striker projection 48 for the actuator trigger 49 of the key 31 so as to effect the automatic setting of the permutation of the key 31 when the latter is inserted in the keyway 3|, whereby it will act upon the actuator members 32 active under the combination of the lock for the control of the tumblers 33 to release the barrel B for the turning thereof in the casing A, either for throwing the lock bolt to looking or unlocking position.

It should be apparent that the tumbler com bination of the lock can be readily and easily I altered or changed by turning the bars of the intermediary members 4| and these being only accessible when the barrel B has been extracted or removed from the casing A, the resetting key for the turning of the bars 40 being insertable in the bores 42 for the bars and engaged with the socketed ends 47 thereof and thus shifting the sectors 4! according to the combination to be set upor the permutation alteration of the lock. On removal of the barrel B for the purpose of resetting the tumblers the unlocking key is held in inserted position so as to bring all the active tumblers 33 to neutral or unlocking position against the pressure of springs 39. While in such neutral position the active tumblers 33 are disconnected from actuators 32 and hence from the pressure of springs 39 by the turning of their sectors 4| by the resetting key. On removal of the unlocking key the actuators and sectors will be moved by springs 39 to their normal positions of rest but the formerly active tumblers 33 now disconnected will remain inactive in unlocking position. The lock is now in condition to be reset to a new combination by introducing a new key which will move the actuators and sectors against springs 39 to the new setting, at which point the resetting key is used to again connect the necessary tumblers 33 to the actuators 32 by turning the corresponding sectors 4| into their proper notches 43. The new key being now withdrawn the active tumblers of the new combination will be moved by springs 39 to locking position.

The barrel B of the lock can only be removed from the casing A when the lug I! has been brought to alignment with the channel or groove l8 and this is accomplished by the turning of the barrel B in the casing A and thereafter the said barrel can be slipped or pulled outwardly of the casing A. The purpose of pulling the barrel B from the casing A is to enable access to be had by an implement, through the inner end of the barrel, for the turning of the bars 40 for the purposes hereinbefore set forth. The ring 26 moves with the barrel when the latter is pulled out of the casing as such ring is coupled with the barrel by the keyhole plate 24.

When the barrel B has been removed from the casing A and it is desired to remove the easing A from its mounting, the pieces 22 can be extracted from their sockets and thus the casing freed to be removed from the mounting.

On the insertion of the key 31 through the hole 33 into the keyway 3| therefor in the barrel B, the striker 48 contacts with the trigger 49 of the key 31, so that its permutation mechanism will be automatically set to operate the actuator members 32 of the lock and under their action the tumblers 33 to be operated upon will be moved to free the barrel B within the casing A for the turning of said barrel and thus the locking bolt will be thrown to looking or unlocking position, as is conventional.

When the key 3'! is removed from the lock barrel B the members 32, under the action of the springs 39, return to normalcy, and certain of the tumblers 33 lock with the casing A so that the barrel B cannot be turned in said casing.

It should be obvious that for this look and key a wide range of combination consisting of series of figures anywhere from four to ten can be had and that the number of possible combinations may be materially increased by merely increasing the number of actuator bars and tumblers.

On account of the particular construction of the lock in which all actuating bars and other parts movable therein slide silently, manipulation of the look by persons who have no right thereto is futile because the lock is absolutely silent in its operation and thus it is impossible by sound to decipher the combination of the lock for the operation of the same.

An automobile equipped by a manufacturer with this kind of lock gives the purchaser of the automobile the advantage to change the combination of both lock and key numbers known only to himself, thus preventing easy access to duplicate keys by an automobile thief.

In Figures 20, 21, 22, and 23 of the drawings there is shown a modification of the lock wherein the actuator bars 50 within the barrel of the lock casing are adapted to have selectively engageable directly therewith companion tumblers 5|, these being formed with the spaced notches 52 at one side thereof for accommodating the projections 53 on said members 53 and selective engagement of each of these projections 53 with the notches 52 is had by the turning of the tumblers and this is accomplished by engaging a wrench or implement with the end 54 of the selected tumbler 5i and such engagement can only be had through the inner end of the barrel 55 on removal of this barrel from the casing 56 of the lock. By this construction and arrangement of the interfitting alterable connection of the members 53 and tumblers 5|, a change of the permutation action or the combination of the lock may be had.

Each tumbler 5! has acting thereon the friction latch 51 engaging a fiat face 58 on the tumbler so as to hold the selectively changed tumbler in its adjusted position.

In this modified construction and arrangement of the lock including the members 50 and tumblers 5i it can be readily seen that a wide variation of permutation or combination action of the lock is obtainable and the working of the look by a key of the permutation type under the modified arrangement and construction is alike to the preferred construction as hereinbefore described in detail.

The silent characteristics in the working of the lock frustrates an unauthorized operator from gaining knowledge of the combination of such lock resultant from sound in the Working of the parts.

From the foregoing it is thought that the construction and manner of operation of the lock will be clearly understood and a more extended explanation has been omitted. However, it is to be understood and it is contemplated that changes, variations and modifications may be made in the look as fall properly within the scope of the appended claims without departing from the spirit of the invention 01' sacrificing any of its advantages.

What is claimed is:

1. A lock of the kind described comprising a casing having a key operable rotary barrel removably fitted therein, changeable key operable tumbier mechanism contained within the barrel and manually changeable on the removal of the barrel from the casing by an implement Without removal of the tumbler mechanism from said barrel, said tumbler mechanism having its parts interfitted with each other and slidable relative to one another, selectively engageable keeper means concealed within the casing for the tumbler mechanism, and means within the barrel for setting a permutation key when inserted therein to operate the tumbler mechanism in the barrel.

2. In a lock or" the kind described, a barrel receiving casing, a key operated tumbler barrel rotatably fitting said casing and removable therefrom, and key operable tumbler mechanism in the barrel, alterable to a different combination without separation thereof from the latter and accessible only on removal of the barrel from the casing.

3. In a lock of the kind described, a barrel receiving casing, a key operated tumbler barrel rotatably fitting said casing and removable therefrom, key operable tumbler mechanism in the barrel, alterable to a different combination without separation therefrom and accessible only on removal of the barrel from the casing, and selectively engageable means concealed within the casing for coaction with the tumbler mechanism within the barrel for the locking and unlocking of said barrel.

4. In a lock of the kind described, a barrel receiving casing, a key operated tumbler barrel rotatably fitting said casing and removable therefrom, tumbler mechanism in the barrel, alterable to a different combination without separation therefrom and accessible .only on removal of the barrel from the casing, selectively engageable means concealed within the casing for coaction with the tumbler mechanism within the barrel for the locking and unlocking of said barrel, and a facing plate on the barrel and having a key opening for directing a key to the tumbler mechanism for actuation thereof.

5. A look of the kind described comprising a casing, a key barrel rotatably and removably fitted in said casing, key operated tumbler mechanism. contained within the barrel for locking the same against rotation, and means within the barrel and accessible for operation only on removal of the barrel from the casing and without separating the tumbler mechanism therefrom for changing said mechanism to a different combination.

6. A look of the kind described comprising a casing, a key barrel rotatably and removably fitted in said casing, key operated tumbler mechanism contained within the barrel for locking the same against rotation, means within the barrel and accessible for operation only on removal of the barrel from the casing and without separating the tumbler mechanism therefrom for changing said mechanism to a different combination, and means arranged for engagement by the lock key to set the key for its operation of the tumbler mechanism on the inserting of the key within the barrel. 7

LEO E. DEUTSCH.

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