US2117420A - Door handle and lock - Google Patents

Description

May 17, 1938. s. N. HARDEN 2,117,420

DOOR HANDLE AND LOCK Filed Jan. 7, 1956 2 Sheets-Sheet 1 21a Inventor eozye jlf Harden a A llornepS y W g 49 gzwmmw May 17, 1938. G. N. HARDEN DOOR HANDLE AND LOCK Filed Jan. 7, 1936 2 Sheets-Sheet 2 Inventor Geo ye N Hard e 1 By M fi Allomey;

Patented May 17, 1938 UNITED STATES PATENT GFFKQE 1 Claim.

This invention has reference to a handle and lock construction and assembly for closures and more particularly for automobile doors.

More particularly the invention has reference to a combination or permutation lock, and an object of the invention is to provide a lock of this character characterized by simplicity of construction and assembly; and which will be found efiicient and practical for use on automobile doors. Further objects of the invention are to provide a lock of this character for automobile doors which will dispense with the need of carrying a key for the door lock, and which can be worked from a simple combination easily carried in mind and to that end will enable an operation of the look under conditions precluding the efficient lighting as is necessary in the case of those locks of a permutation construction and which include a dial for use in setting or releasing the lock.

Further in accordance with the present invention a permutation lock of the character mentioned is provided whereby the combination can be Worked without relying on sound for determining whether or not the combination is being properly worked and which will therefore render it most difficult, if not practically impossible of being picked.

The invention together with its objects and advantages will be best understood from a study of the following description taken in connection with the accompanying drawings wherein:

Figure 1 is an elevational view illustrating an application of the invention.

Figure 2 is an enlarged detail view taken substantially on the line 22 of Figure 1.

Figure 3 is a view similar to Figure 2 and showing the parts in position for transmitting movement of the operating handle to the bolt of the lock. i

Figure 4 is an enlarged detail View taken substantially on the line 4-4 of Figure 2.

Figure 5 is a plan View of one of the disks.

Figure 6 is an edge elevational view of the disk.

Figure 7 is a plan View of a second disk.

Figure 8 is an edge elevational view of the second disk.

Figure 9 is a view of one side of a cam disk.

Figure 10 is a similar view of the opposite side of the cam disk.

Figure 11 is an edge elevational view of the cam disk.

Figures 12, 13 and 14 are views corresponding to Figures 9, 10 and 11 of a tumbler disk.

Figures 15, 16 and 17 are views similar to Fig 55 ures 12, 13 and 14 of a second tumbler disk.

Figure 18 is an elevational view of a washer.

Figure 19 is an edge elevational view of the Washer.

Figure 20 is an elevational view of a shaft.

Figure 21 is an end elevational view of said shaft.

Figure 22 is a perspective View of a dog.

Referring to the drawings it will be seen that the lock and handle of the present invention are illustrated as applied to an automobile door a portion of which is shown in the drawings and indicated generally by the reference numeral ID.

The door i0 is of conventional construction and is equipped with a locking bolt II housed within a suitable casing mounted in one side of the frame of the door and operated directly from an inside handle I3 through the medium of a conventional lever I4 mounted on the squared portion of a shaft I5 to rotate with the shaft. Handle I3 as clearly shown in Figures 2 and 3 is suitably secured to one end of the squared portion of the shaft so that by properly manipulating the handle I3 motion is transmitted through the member I4 to the bolt I I for projecting or retracting the bolt. In this connection it will be noted that at the inside thereof the door I0 is provided with a conventional escutchecn plate I6.

In accordance with the present invention there is provided for the door IB an outside handle H which is suitably connected as at it with one end of a squared shaft I9 arranged substantially in alinement with the shaft I5 and provided at its inner end with a cylindrical socket 223 forming a bearing for the cylindrical end I52) of shaft I 5. For the outside of the door there is provided a suitable escutcheon plate 2!.

Further in accordance with the present invention there is provided on the squared portion of the shaft I5 a disk 22 having a squared opening 23 for receiving said squared portion of the shaft I5 and also provided with a notch 24 in which is pivoted as at 25 one end of a dog 25. 1

The opposite end of the dog 26 is adapted to engage the periphery of a disk 21 provided with a squared opening 28 receiving the shaft I9. The disk 21 is also provided on its peripheral edge with a flattened portion through which opens a notch 29 which when the disk 21 is in a predetermined position receives the free end of the dog 26 as shown in Figure 3 so that rotative movement of the shaft I9 will be transmitted to the shaft I5 for retracting the bolt II in a manner thought to be apparent.

Further the lock includes a pair of tumbler disks 3!! and 3! respectively. The disks 3!! and 3! are provided at their centers with circular openings 32 and 33 respectively which receive the cylindrical portion I50 of shaft I so as to permit rotation of the shaft I5 relative to the disks 3!! and 3! under certain conditions.

Each disk 33 and 3! is provided with a circular series of openings 34 and 35 respectively there being preferably twelve openings in each disk corresponding somewhat to the twelve numerals on a clock dial although it will be understood that a greater or lesser number of such openings may be resorted to if desired.

For use with the disk 3!! there are provided pins 36 and 3? while for use with the disk 3! there are provided pins 38 and 39.

There is also provided a cam disk 40 which like the tumbler disk is provided with a centrally located circular opening 4! for receiving the portion I5c of shaft I5; said disk being also provided with a circular series of openings 42, the openings 42 being one less in number than the openings 34 and 35 and these openings are adapted to receive pins 43 and 44.

Each disk 3!] and 3! is provided at a predetermined point with a notch 45 and 46 respectively while the disk 40 is provided at a predetermined point with a substantially V-shaped notch 41 one wall of which provides a cam surface 48.

The disks 38, 3! and 40 are arranged on the part I5c of the shaft as clearly shown in Figures 2 and 3 and arranged in alternation on said part I50 of the shaft with respect to the disks are spacer washers 49, the washers and disks being so grouped that frictional contact therebetween will serve to prevent too free rotation of the disks, and also to prevent premature transmission of movement from one disk to the other when the lock is being operated.

Projecting from one face of the disk 2'! is a properly positioned pin 49a for cooperation with a pin 38 on a disk 3! for a purpose, and in a manner hereinafter made manifest.

Depending from the underside of the dog 26 is a lug 26a which engages in the notches 45, 45 and 4! of the disks 3! 3! and 4!! when said notches are alined as shown in Figure 3 and at which time the free end of the dog 26 is engaged in the notch 29 of the disk 2! so that upon a turning of the handle I! movement of the handle will be transmitted to the shaft I5 and from the shaft I5 through the member I4 to the bolt II for retracting the latter. In this connection it will be understood that when the dog is in the position shown in Figure 2 and the notches of the several disks are out of alinement handle I! may be freely turned in either direction without effecting a movement of the bolt II. Thus under such circumstances and with the door of the automobile closed unauthorized entry into the automobile will be effectively precluded.

As is thought to be apparent the holes in the disks, and the arrangement of the pins in the holes will permit a varying of the combination from time to time if desired.

The operation, utility and advantages of the invention will be apparent from the following:

It might be first stated and is thought apparent, that with the pins for each disk arranged in the selected openings in the disks a predetermined manipulation of the handle I'!, first turning the same in one direction, and then in a reverse direction for a certain fraction of a revolution, and then for a greater or smaller fraction of a revolution as the case may be, movement of the handle I'! will be transmitted to the several disks in predetermined sequence until all of the disks have been moved into a predetermined position alining the notches in the disks and thereby permitting a movement of the dog 26 from the position shown in Figure 2 to the position shown in Figure 3 whereby to place the handle I'! in driving engagement with the shaft I5, so to speak, so that a further turning of the handle I! will result in a manipulation of the bolt II for retracting the latter.

The manner in which the tumbler disks are successively positioned for alining the notches thereof with one another and with the notch 29 in the disk 21, and the notch 4! in the disk 4!] is analogous to the manner in which tumbler disks in any permutation locks are so properly positioned and consequently a detailed description of' this particular operation is deemed to be unnecessary. However inactual practice it has been found that by equipping each of the disks 3!! and 3! with a series of twelve holes apiece a combination may be formed whereby, in keeping in mind the relative location of the numbers on a clock dial the successive effective positions through which the handle I! must be moved in working the combination can be readily kept in mind and in addition thereto, one knowing the combination can readily appreciate just when the handle I'! is in each required predetermined position. In this way one having knowledge of the combination may readily operate the lock without the benefit of light while at the same time the combination can be worked without the operator being required to listen for any click as is now generally required with permutation locks.

The above may be best understood from the following:

Thus with the pins 36, 31; 38, 39, and 43, 44 arranged in the relative position shown the operator, to retract the bolt I I will manipulate the handle I! in the following manner; the handle or knob I! is first rotated in a clockwise direction until it assumes a position corresponding to, for example, the numeral I! on the face of a clock dial. This will result in positioning the disk 40 so that its notch 4! is substantially in alinement with the notch 24 in the disk 22. Next the knob I! is rotated in an anti-clockwise direction to a position corresponding substantially to the position of the numeral 8 on the face of a clock dial. This will result in a movement of the disk 30 to a position alining its notch 45 with the aforementioned notch 48 of disk 40. Next the operator rotates the knob I! in a clockwise direction and the handle or knob I! is in a position corresponding to the position of the numeral Son the face of a clock dial. This will result in the alining of the notch 46 in the disk 3! with the aforementioned alined notches 4'! and 45. The knob I! is then turned to the left and as the knob is turned in this direction notch 29 in the disk 2! which turns with the knob moves into alinement with the now alined notches 48, 45 and 46. This permits the free end of the dog 26 to drop into the notch 29 with the lug 26a of the dog dropping into the alined notches 48. 45 and 46, the position of the parts being such as shown in Figure 3. With the parts in this position it will be apparent that rotation of the knob I! in the proper direction will result in a retraction of the bolt I I permitting the door to be opened.

With the parts in the position shown in Figure 3, when it is desired to secure the door In in closed position against unauthorized opening the dog 26 is raised out of the notch 29 in a manner and through the instrumentality hereinafter described in detail. With the dog 26 in this raised position knob I! by gravity will rotate to the position shown in Figure 2 thus moving the notch 29 of the disk to an out of the way position so that the free end of the dog 26 will then rest on the peripheral edge of the disk 21 in a manner to hold the lug 26a thereof raised out of engagement with the notches 45, 46 and 41 of the disks 30, 3| and 40 as will be clear from a study of Figure 2.

For this raising the dog 26 there is provided a push button 50 mounted to slide in a cylinder or casing mounted in the door structure and secured in position as at 52 at the inner side of the door. Pin and groove means 53, 54 serve to retain the knob 50 against rotative movement and the knob 50 is normally urged to an upwardly projected position through the medium of a spring 55. The knob 50 has a reduced shank that projects through the bottom of the cylinder or casing 5| and at its lower end there is secured to the shank of the knob an angularly disposed arm 55 in the path of which is arranged the pin 44 of the disk 40 as shown in Figure 4.

Thus with the parts in position as shown in Figures 3 and 4 the dog 26 is raised out of engagement with the notch 29 of disk 21 by pressing downwardly on the button 50. Downward movement of the button against the action of the spring 55 will cause the arm 55 to engage the pin 44 thus rotating the disk 40 in a counterclockwise direction. As disk 40 rotates in this direction the cam edge 48 thereof will engage the lower edge of the lug 50 with the result that dog 26 will be caused to swing vertically upwardly from the position shown in Figure 3 to the position shown in Figure 2 and subsequently engage the peripheral edge of the disk 21 whereby said dog will be retained in the position shown in Figure 2 until the knob I1 is again manipulated in a manner hereinbefore described in detail for placing the handle or knob H in driving engagement with the shaft l5.

It is obvious that with the dog 26 in the raised position shown in Figure 2 a haphazard manipulation of the handle I! will be ineffective for retracting the bolt ll. Thus under such conditions, and with door. It closed it will be practically impossible for an unauthorized person to gain entrance to the automobile.

While I have described the lock as being particularly adapted foruse on automobile doors it will be understood that the same may be applied to doors of other structures or to any other suitable type of closure.

Having thus described the invention, what is claimed as new is:

In a lock of the character described, a pair of alined shafts, said shafts being normally rotatable independently of one another, and permutation means interposed between said shafts for placing said shafts into and out of driving engagement one with the other, and including a disk mounted on each shaft for rotation with its respective shaft, a dog pivotally connected with one of said disks, and the other of said disks being provided with a notch for receiving the free end of the dog, said permutation means acting to normally retain the free end of the dog out of engagement with said notch, and said permutation means including cam means for raising the free end of said dog out of engagement with said notch and including a disk rotatable about one of said shafts as an axis and provided with a cam surface and a lug on said dog cooperable with said cam surface, a slidably mounted operating button for said cam disk, supporting means for said button, and interengaging means on said button and the cam-disk for rotating the latter in a predetermined direction for efiecting a raising of the free end of the dog out of engagement with said notch.

GEORGE N. HARDEN.

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