US1167787A - Keyless lock. - Google Patents

Description

S. TADAKUMA.

KEYLESS LOCK.

APPLICATION FILED 1uLY19. 1915.

1,16?,78? Patented Jan. 11, 1916.

TREE. 1.* L

By k i UNITED STATES SEIZI TADAKUMA, OF PORTLAND, OREGON.

KEYLESS LOCK.

Application filed .Tuly 19, 1915.

To all whom t may concern:

Be it known that I, SEIZI TADAKUMA, a subject of the Emperor of Japan, at present residing at Portland, in the county of Multnomah and State of Oregon, have invented certain .new and useful Improvements in Keyless Locks, of which the following is a specification.

My invention relates to the class of locks and it more particularly belongs to that class embodying permutative or selective mechanism designed to be unlocked by projections or push buttons or plates in lieu of a key.

rIhe present invention provides a pad lock, the shackle of which is provided with reversible lock plates, by means of which the combination may be changed at will, each lock plate coperating with a sliding lock bar in the body ofthe lock to secure the same, the several lock bars being operated by releasing levers and push buttons or plates, there being one set of lock bars, releasing levers and push plates for each lock plate. The shackle is also provided with a holding notch whereby the operation of an inactive set will result in the lock bar of that set entering the notch and prevent the release of the shackle.

In its more subordinate nature, the invention includes those novel details of construction, combination and arrangement of parts, all of which will be first fully described, then be specifically pointed out in the appended claims, and illustrated in the accompanying drawings, in which:

Figure 1 is a perspective view of the lock. Fig. 2 is a perspective view of the shackle. Fig. 3 is a longitudinal section, the cutting plane lying just above the operative mechanism for section four of the mechanism. Fig. 4 is a view similar to Fig. 3, the cutting plane being taken just above the operative mechanism of section three. Fig. 5 is a view similar to Fig. 4, the cutting plane being taken just above the operating mechanism of section two. Fig. 6 is a view similar to Fig. 5, the cutting plane being taken just above the operating mechanism of section one. Fig. 7 is a view similar to Fig. 3, showing the position of the parts when section four is an inoperative section and the push plate thereof has been forced inwardly. Fig. 8 is a cross section an the line 8--8 of Fig. 3. Fig.. 9

Specification of Letters Patent.

'alining with one another.

Patented Jan. 11, 1916.

Serial No. 40,606.

is a detail perspective view of the plate in which the works of the lock are mounted.

In the drawing, in which like numerals of reference indicate like parts in all of the figures, 1 represents the shackle whose arm 2 is notched at 3 to provide a holding recess for the entrance of the several lock bars that may be adjusted to an inoperative relationship with the lock plates 7.

The arm 4 of the shackle is recessed at 5 and provided with an elongated flat pin 6 to receive the lock plates 7, there being as many lock plates as there are sets of locking devices in the lock body. Each lock plate 7 comprises a locking notch 8 and a releasing notch 9 along one edge and an idling notch 10 on the other edge, the notches 8 all being preferably in the same position, while the notches 9 are varied in their location, dependent on the location and arc of movement of the particular releasing lever end with which the same cooperates.

The lock body 11 has a bottom plate 12 that is provided with a series of slots 13 for the push buttons or plates 37 to project through, and the top has openings 14 and 15 to receive the shackle arms 2 and 4.

16 represents the base plate that supports the works of the lock, which plate is inserted in `the casing body 11 and is held centered by lugs on its upper flange 19, as indicated in Fig. 5. The base plate 16 has a liange 17 at one side having an opening 18 and provided with, an inturned guide 22. It also has a flange 19 at the top which is open at 2O and has an abutment projection 21, as best shown in Fig. 9.

The flange 19 is cut or bent to form an end flange 23 and an inwardly projecting guide 24, the guides 22 and 24 preferably The plate 16 is also provided with pivot pins 26 and guide pins 25, there being one set of pins foreach set of locking devices.

Each set of locking devices comprises a lock bar 27 slotted at 28 and 30 to receive the guides 24 and 22 respectively, and provided with locking ends 29 and restraining locking ends 39 at the other end.

Each lock bar is normally projected in the same direction (to the locking position) by a spring 40. Each lock bar 27 also has a shoulder 31 to be engaged by the abutment 32 of a releasing lever 33 which is pivoted on the particular stud or pin 26,

and the free ends of the levers'BB lie normally projecting in the recesses 9 or l() of the lock plates 7, according to whether the V lock plates are in the active or inactive positions. j

The several releasing levers 33 have surfaces 35 designed to be engaged by the ends 3G of the push plates or buttons 37, each of which plates is slotted at 38 to receive the perspective guide pins The plates 37 are held from coming out by their shoulders -which engage the bottom 12 of the body 11.

Iach set of locking devices is supported by a thin plate ll and the uppermost set is covered by a plate Ll2 (see Fig. 8).

In practice, when a push plateBT is moved inwardly, its end 3G will force the releasing lever upwardly whereby the shoulder 32 will Lt'orce the lock bar out of the lock recess 8 of the particular lock plate 7 and, uponv further movement, the end 34; will engagethe shoulder at the top of the recess 9 and force the shackle upwardly (outwardly). If the lock plate be reversed, as in Fig. 7, to exclude that set from the combination, and the push plate o the excluded set be forced inwardly in the attempt to open the lock, the lock bar 27 o that set will have its end 39 forced into the notch 3 and prevent the withdrawal oi the shackle, thus tending to prevent an unauthorized opening of the lock.

It should ybe understood that as many sets of locking devices and lock plates may be used in a lock as found desirable, and in order to change the combination it is only necessary to turn over one or more of the lock plates from the position shown in Fig. 2 to the reverse position indicated in Fig. 7, for instance, when those particular lock plates will be rendered inactive with relation to the locking mechanism of the particular set or sets.

From the foregoing, it will be observed that I have provided a simple and eifective construction of keyless lock in which pro vision is made i'or a ready change of the combinations to suit the desires of the user and provision is also made whereby when one attempts to force the opening of the lock, not knowing the combination, and presses on the inactive push plate, the result would be simply to lock the shackle more securely in the body of the lock.

From the foregoing, taken in connection with the accompanying drawings, it is thought the complete construction, operation and advantages of my invention will be readily understood by those skilled in the art.

lVhat I claim is:

1. In a lock, a body and a shackle, works within saidfbody andl comprising sets of locking mechanism each including lock bars,

releasing levers and push plates, said body havingslots through which said push plates project, said shackle having notches coperative with said bars and levers.

In a keyless lock, a body, and a shackle adapted to project into said body, sets of locking mechanism including lock bars, releasing levers and push plates in said body, said shackle having lock members for said lock bars, said shackle also having a holding notch designed to receive said lock bars at times, said lock members being reversible for rendering any lock bar inoperative as to said shackle bar lock members.

3. In a keyless lock, a body, works within said body, a shackle having arms insertible into said body, one of said arms having normal lock notches, said works including sets of lock bars designed to engage said notches, means for holding certain o1 saidbars out of the notches and thusout of the combination"`,-means for withdrawing said lock bars from the notch engaging position, and means coperating with the lock bar that is out of the combination for bringing it into locking engagement with the shackle whenv the withdrawing means of that bar is operated.

4E. In a keyless lock, a body, a shackle adapted to be inserted into said body, said shackle having a recess, lock plates revers ibly mounted in said recess, said lock plates having lock notches and releasing notches on oneedge and an idling notch on the other edge, works within said body, said` works comprising a'plurality of sets of locking mechanism, each set consisting of a lock bar, means for forcing said lock bar into locking engagement with the lock notch of the respective lock plate, a releasing lever having engagement with said lock bar t0 withdraw the same, said releasing lever' projecting into said releasing notch of the respective lock plate, and a push plate de signed to .engage said releasing lever, said body havingslots through which the respective pusher plates project.

5. In a keyless lock, a body, a shackle adapted to be inserted into said body, said shackle having a recess, lock plates reversibly mounted in said recess, said lock plates,

having lock notches and releasing notches on one edge and anfidling notch on the other edge, works within said body, said works comprising a plurality of sets of locking mechanism, each set consisting of a lock bar, means for forcing said lock bar into locking engagement with the lock notch of the respective lock plate, a releasing lever having engagement with said lock bar to withdraw the same, said releasing lever projecting into said releasing notch of the respective lock plate, a push plate designed to engage said releasing lever, said body having slots through which the respective push isc plates project, said shackle having a holding notch, said locking plates being reversible to bring the idling notch in position to receive said releasing lever ends and hold said lock bars from locking action, said lock bar so held from locking action adapted to be forced into said holding notch of said shackle when the respective push plate is operated.

6. In a lock, a body, a shackle having a pair of arms insertible into said body, one of said arms having a holding notch, the other of said arms carrying a lock member having a lock notch and a releasing notch, an endvvise reciprocable lock bar mounted in said body, a spring for forcing said bar to engage said lock notch, a releasing lever within said body designed to engage said lock bar to force it out of said lock notch and into said holding notch, said releasing lever having an end projecting into said re- -With relation to said shackle holding notch.

7. In a lock, a body, a shackle having arms adapted to project into said body, a

locking mechanism including a reciprocating lock bar, releasing levers and push plates mounted in said body, said shackle having a lock notch and a releasing notch, means for forcing said lock bar into said lock notch, said releasing lever having engagement With said lock bar to Withdraw the same from said lock notch and projecting into said releasing notch to force said shackle upwardly, substantially as shown and described.

SEIZI TADAKUMA..

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents- Washington, D. C.

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