US2049983A

US2049983A - Lock

Info

Publication number: US2049983A
Authority: US
Inventors: Herman W Voges
Original assignee: Individual
Current assignee: Individual
Priority date: 1934-04-12
Filing date: 1935-05-13
Publication date: 1936-08-04
Anticipated expiration: 1953-08-04

Description

,1 H. W..VOC1ES 2,049,983,

' LOCK Original Filed April 12, 1954 Patented Aug. 4, 1936 UNITED STATES PATENT OFFICE 720,429. Divided and this 1935, Serial No. 21,171

application May 13,

6 Claims. '(01. 70-108) This invention relates to improvements in looks and is directed more particularly to the provision of a lock having novel releasing mechanism which is operable by a series of impulses or separate related movements, and this application is a division of an application Serial Number 720,429 filed by me on April 12, 1934, whichrhas matured into Patent No. 2,006,375 dated July 2, 1935.

It is an important object of the invention to provide a lock which is provided with an actuating memberadapted to, receive a series of related impulses from a plunger-like device so that the bolt of the lock is released.

According to a special feature of the invention, a plurality of different locks may be arranged to be operable by diiferentseries or trains of different related impulses which actuate the releasing mechanism.

The novel objects of the invention are accomplished by the provision of a novel combination and arrangement of parts as will more fully hereinafter appear in the accompanying description of the present preferred form of the invention taken in connection with the accompanying drawing, wherein:

Fig. 1 is a sectional elevationalview of a lock mechanism embodying the novel features of the V invention;

Fig. 2 is a sectional view taken on the line 2-2 of Fig. 1; and .1 r Fig. 3 is a sectional view taken on the line 33 of Fig. 1. j Referring now to the drawing more "in'detail, the invention will be fully described.

A lock mechanism embodying the novel features of the invention is shown in Fig. 1 which in the illustrated form of the invention is a padlock. The description refers particularly to a padlock but it is to be understood thatthis is for purposes of description only and that the broad features of the invention may well be embodied in looks of all kinds. Fig. l shows the parts of the lock in their bolt-locking position.

Ahollowed-out casing such as 2 is provided and this may be the casing for a padlock orv of sucha look as is mortised in a door or door frame. A bolt member 4 which'in connection with a padlock may be called a shackle has a side member 6 slidable in the casing and an armor side member 8 which is receivable in a suitable socket 9 pro vided in the casing 2. The lower end of. the member 6 extends into the interior of the casing as shown. a

A packing such as I may be provided in the casing around the side member 6 to providea means of lubrication therefor. This packing 1 may also serve as a seal to prevent water from entering and rusting parts in the interior of the casing.

A bolt lever I2 is pivoted at I4 to the casing 2 and this carries on its upper end a projection I6 which is receivable in a suitable notch provided in a side of the shackle part 6, as shown. When the side member 8 of the shackle is disposed in its socket, the bolt lever l2 and its projection I6 serve to hold the parts in locked position.

To unlock the shackle in order that it may move to an unlocked position which in this case is outwardly. or upwardly it is necessary to swing the lever member way move the projection I6 from its recess in the side of the member 6.

A lug I8 extends laterally from the bolt lever I2 and an extension tail part of the side member 6 passes loosely through the lug I8 while a spring 29 is disposed between the end of the member 6 and the lug I8. This spring 20 serves to yieldingly urge the shackle 6 outwardly and the bolt lever I2 towards the locking position shown.

The bolt lever I2 is provided with an upstanding lug 22 at its outer end which is disposed in front of a plurality of tumblers 24 which will later be described. An ear member 21 also extends laterally from the bolt lever i2 for a purpose later to be described.

The lug 22 provided on the bolt lever I2 is adapted to abut the tumblers 24 so that the bolt I2 cannot swing counterclockwise from its locked position to an unlocked position. However, the tumblers 24 have notches26 therein and these receive the lug 22 when the tumblers have been oscillated to a certain unlocking position. When the tumblers 24 are in this certain unlocking position, the lever I2 may be swung counterclockwise so that the projection I6 of lever I2 is caused to release the side member 6 of the shackle. The spring 20 .or other suitable means may cause the shackle 4 to move to unlocked position when re leased by the lever I2. r

The tumblers 24 are. substantially alike, are provided with an upper toothed edge, as shown, and are arranged for oscillation on a pin or stud 25. A land 30 is provided on the upper side of each of the tumblers which is below the surface thereof to form a shoulder 32 atthe upper side of the land. There may be any desired number of tumblers arranged for independent movements and pawls 34 are provided, one for each of the tumblers. a t of I2 counterclockwise and in this The pawls one above the other are pivoted at 36 and have their right hand ends arranged to engage the teeth of the tumblers. Springs 38 and 40 are provided for each of the pawls and tumblers. These are seated in the casing 2, as shown, and the parts 38 yieldingly bear on the working ends of the pawls to urge them into engagement with the teeth of the tumblers while the parts 40 engage the rear sides of the tumblers to urge them counterclockwise so that edge portions 42 of the tumblers bring up against the side of the casing to limit movement of the tumblers counterclockwise.

The notches 26 of the different tumblers may be spaced at diiferent distances or angles from their respective shoulders 32. In this respect, the tumblers may be different from one another. That is to say, it may be necessary to oscillate one tumbler through a greater or less angle than another in order to bring the notch 26 thereof into position to receive the lug 22 of the lever l2. As each of the tumblers is moved counterclockwise as to bring its notch into position to receive the lug 22, the tumbler is held in that position by its respective pawl 34.

What may be called a pilot 52 is oscillatable and reciprocable in the casing and this is associated with a body 53 which carries an'arm 56. A guide 54 has its upper end fixed in the casing and its lower end is slidable in a suitable bore of the body 53, as shown. In this way the pilot 52, body 53 and arm 56 may move back and forthan-d oscillate as well. 7 p

The arm 56 associated with the body 53 has an outer end for engaging the shoulders of the tumbler and shown in Fig. 1. A spring 58 is disposed around the member 54 and has its opposite ends anchored in any suitable manner, to the casing and to a flange 6 provided in the body 53, all as shown. This spring 58 is arranged to at all times urge the body 53 and arm 56 clockwise and towards the position shown in Fig. 2.

A cam member such as 62 which may be in the form of a spring member is secured to the casing and extends upwardly and angularly past the body 53. A pin 64 associated with the body 53' is disposed just behind the upper free end'of' the member 62 when the body is in the position shown.

As the body 53 is moved inwardly from the position shown the pin 64 engages the member 62 so that the body is rotated counterclockwise, lifting the arm upwardly so that its outer end is above the plane of the uppermost tumbler. A notch 63 provided on the inner side of member 62 permits the pin 64 to pass therethrough and when the pin arrives at the said notch the spring 58 causes the body 53 to rotate clockwise so that the outer end of arm 56 swings over onto the land of the uppermost tumbler. This first inward reciprocating movement of body 53 is the initial movement thereof in its unlocking movements;

It is desired to point out here that the tumblers 24 are successively moved to and held in an unlocking position where the notches thereof may receive the lug 22 of the lever l2 and then the lever I2 is swung to release the part 6 of the shackle or bolt by movements of the pilot 52 and arm 56. To accomplish this the arm 56 is initially moved to tumbler-engaging position just described and is then moved to actuate the tumblers and finally to actuate the lever 12.

The pilot 52 and arm 56 are moved by, im-

extends to the right of the body as pulses which are applied to the said pilot. That is to say, the pilot 52 is moved inwardly through a series of separate strokes or impulses by an unlocking device having a reciprocable plunger which is inserted within the pilot bore. The separate strokes of the series of strokes may be different from one another and each stroke or impulse will be according to the amount of movement required by the pilot 52 for the parts being actuated thereby. Such an unlocking device as 19 is adapted for use with the lock herein described is disclosed in my U. S. Patent No. 2,006,374 referred to.

Such a device has a plunger receivable in the pilot bore of the lock and is adapted to initially move the pilot inwardly a sufificient distance to locate the arm 56 in tumbler-actuating position. As the'pilot is initially moved inwardly the pin 64 passes beneath the member 62 to cause the arm 56 to oscillate counterclockwise and when 2 .the pin .64 passes through the notch or slot 63 in the side of member 62 the spring 58 serves to oscillate body 53 and arm 56 clockwise to cause arm 56 to rest on the land of the uppermost tumbler. The plunger of the unlocking device is adapted to impart other strokes or impulses to the pilot 52 to cause the arm 56 to first oscillate the uppermost tumbler. To accomplish this the arm 56 brings up against the shoulder 32 of the respective tumbler so that the arm 56 swings the uppermost'tumbler to a position where its notch is in position to receive lug 22 of lever l2 and then the plunger is allowed to retract so that the pilot and arm retract. In so doing, the arm 56 passes off the land of the uppermost tumbler and since it is urged clockwise by the spring 58 the end of the arm comes to rest on the land of the next lower tumbler ready to engage the shoulder 32 thereof. 0

Another forward movement of the pilot, body and arm causes the arm to move the second tumbler 24 clockwise and bring its notch into position to receive the lug 22. A return movement of the arm allows it to pass off the land of the second tumbler onto the land of the lowermost tumbler and again a forward movement is imparted to the pilot and associated parts to bring about clockwise oscillation of the lowermost tumbler and bring its notch into unlocking position to receive the lug 22. l

When the arm retracts from off the lowermost tumbler its extremity lies in the .path of lug 21 provided on lever [2. A final impulse imparted to the pilot 52 causes the arm 56 to bring up against lug 21.015 lever 12. Thetumblers having been positioned 'so that their notches 26 may receive the lug 22 of the lever 12, the lever l2 may be swung by thearm l2 in a counterclockwise direction and in this way the projection 56 C0 of the lever I2 is removed from the recess in the side of the shackle side member 6. Thus the shackle is released or unlocked and may be pulled outwardly or is moved outwardly by means of the spring 20. g

The plungerof the unlocking device may then be removed from the pilot bore so that the spring 58 urges the body, arm and pilot to the locking position shown.

When spring 58 moves the parts towards looking position, a flange on part-53 engages pawls 34 to move them away from the tumblers which will be moved counterclockwise when released by lever. "l2 as member 4 is moved to locke v POS'LtiOnL I. l

With the parts in looking position as described and when the shackle is moved inwardly to locking position the projection l6 of the lever 12 meshes into the recess provided therefor and is locked therein to be released by the mechanism described which is actuated by a train of impulses imparted to pilot 52. It is desired to point out that the parts may be constructed so as to require for their operation a train of diiferent or like impulses or strokes.

In the form of theinvention shown, in addition to the initial impulse for setting the arm in tumbler actuating position there are four successive strokes required, three for actuating the bolt. The number of impulses necessary depends upon the number of tumblers employed while the length of the strokes depends upon the amount of movements necessary to bring the parts into unlocking position.

While I have described the invention in great detail and with respect to a preferred form thereof, it is not desired to be limited thereto since many changes and modifications may be made therein without departing from the spirit and scope of the invention. What it is desired to claim and secure by Letters Patent of the United States is:

l. A look comprising in combination, a bolt movable between locked and unlocked positions, a member movable to lock or unlock said bolt, tumblers'movable between locked and unlocked positions controlling movements of said mem ber, releasable means to hold said tumblers in unlocked position, a reciprocable and oscillatable body member to successively engage and actuate said tumblers and said first-named member, and means to return said means to locked position.

2. A lock comprising in combination, a bolt movable between locked and unlocked positions, a member movable to lock or unlock said bolt, tumblers movable between locked and unlocked positions controlling movements of said member, holding means to hold said tumblers in unlocked position, means to urge said tumblers toward locked position, a reciprocable and oscillatable body member movable between locked and unlocked positions to successively engage and actuate said tumblers, and means to return said body member to locked position to release said holding means.

3. A look comprising in combination, a slidable bolt, a swinging lever engageable therewith to lock the same, tumblers arranged for oscillation between locked and unlocked positions and adapted to limit movements of said lever to unlocked position only when in unlocked position, a reciprocable and oscillatable body member, means to oscillate said body member as it is reciprocated in one direction, an arm associated with said member engageable successively with said tumblers as the member is reciprocated successively to move said tumblers into unlocked position and means associated with said lever engageable by said arm whereby the lever is moved to unlockedposition when the tumblers are in unlocked position.

4. A lock comprising in combination, a slidable bolt, a swinging lever engageable therewith to lock the same, tumblers arranged for oscillation between locked and unlocked positions and adapted to limit movements of said lever to unlocked position only when in unlocked position, a reciprocable and oscillatable body, means to oscillate said reciprocable and oscillatable body as it is reciprocated in one direction, an arm associated with said body engageable successively with said tumblers as it is reciprocated successively to move said tumblers into unlocked position, means associated with said lever engageable by said arm whereby the lever is moved to unlocked position when the tumblers are in unlocked position, and means to urge said tumblers towards unlocked position.

5. A look comprising in combination, a movable bolt, a lever pivoted to swing between locked and unlocked positions engageable with said member to lock the same when in locked position, tumblers oscillatable between locked and unlocked positions, a lug on said lever receivable by said tumblers when in unlocked position to permit unlocking movement of said lever, a. reciprocable and oscillatable body member movable between a locked position and an operating position, means to bring about oscillation of said operating member as it is reciprocated from locked position, an arm associated with said body member to engage and oscillate said tumblers successively when the body member is in operating position, an ear on said lever engageable by said arm whereby the lever is moved to unlocked position, means to return the body member to locked position, means to releasably hold the tumblers in unlocked position, means to return the tumblers to locked position when released and means to return the lever to locked position.

6. A look comprising in combination, a slidable bolt, a lever swingable between locked and unlocked positions, means associated with said bolt and lever engageable when the lever is in locked position to lock said bolt, superposed tumblers having recesses oscillatable between locked and unlocked positions, a lug on said lever receivable in said recesses when the tumblers are in unlocked position, an oscillatable and reciprocable body member having an arm to engage and oscillate said tumblers as it reciprocates in one direction, means to oscillate said body member to bring said arm into engagement with the tumblers and'a projection on said lever engageable by said arm whereby said lever is swung so its lug enters the recess of the tumblers and the locking means associated with said bolt and lever are disengaged.

HERMAN W. VOGES.