US1668958A

US1668958A - A cobpoba-x

Info

Publication number: US1668958A
Authority: US
Publication date: 1928-05-08
Anticipated expiration: 1945-05-08

Description

J. GO OI )MAN 7 OCKING HANDLE May 8, 1928.

Filed Aug. 4. 192a Patented May 8, 1925 metres Stern's JOSEPH GOODMAN, F W'HITNEYVILLE, CONNEGTICUT, ASSIGNOE TO THE MT. CARMEL MANUFACTURING COMPAEY, OF MOUNT CARMEL, CONNECTICUT, A CORPORA- TION OF CONNECTICUT.

. LOCKING HANDLE Application filed laugust 4, 1926. Serial No. 127,006.

.This invention relates to a locking handle, especially to a handle for operating the latches of automobile doors, and has for an object to provide an improved key operated locleng; device for such latch operating means which will have a positive stop to limit the turning movements of the key to both the locked and unlockedpositions so that the positions at whichthe key may be withdrawn are. automatically determined. rlt is-also an object of the invention to provide a device 01 this type in which there is a positive stop for the bolt when it is in the locked position so that there is no liability of its being accidentally withdrawn from this locking position, and also so that it cannot be, worked from this position by a tool.

Further objects of this invention are to sin'iplity the construction of this type of devices, to giveadditional strength to the lockparts which are necessarily small due to the restricted space in which they have to be placed, and to reduce the cost of man ulacture in that in my improved construetion one less part is used than in similar devices now generally in use and the assembling operation is simplified. 7

Other objects and advantages will be apparent from the following description, reference being had in connection therewith to the. accompanying drawing. In this drawing,

1 is a longitudinal section through my improved handle applied'to a door, certain portions being shown in elevation, and showing the bolt retracted into the shank in the unlocked position. I

Fl 2 is a transverse section substantially on line 2-2 of. Fig. 1.

Fig. 3 is a section on the same plane as Fig. 2 and on an enlarged scale showing an intermediate position ot the bolt operating member and at the beginning of its operation of shifting the bolt to the locking position.

Fig. 3 is a detail side view showing the relative positions of the bolt and operating member in the position corresponding to Fig. 3.

Fig. t is a transverse section on the same plane as Fig. 3 showing the position of the elements at the completion of the movement oi the bolt to the locking position' Fig. t is a detail side view showing the relative position of the bolt and operating member corresponding to Fig. l.

Fig. Sis a transverse section on the same plane as Figs. 2, 3 and l and showing the elements in the positions theyoccupy with the bolt in locking position and the bolt operating member at the limito't its turning movement and in position to permit withdrawal of the key.

Fig. is a detail side view showing the relative positions of the bolt and operating member corresponding to Fig. 5.

planeas Figs. 2, 3,4 and 5 showing the position oi the elements on the reverse movement 01 the bolt operating member and in position to begin the retraction of the bolt from the locking position.

Fig. 6 is a detail side View showing the relative positions of the bolt and operating member corresponding to Fig. 6.

Fig. 7 is a side elevation of the locking bolt. p

Fig. 8 is a front elevation thereof.

l v movable locking bolt adapted to be proieeled'to extend at one end into notches'or recesses in theescutcheon to lock the handle and spindle against these. turning movements, said bolt being operated by a'rotatable lJZ. rel or cylinder mounted in the shank which rotated by akey and has a suitable connection with said bolt. It the barrel and key is of the pin tumbler type it is necessary in order to move the key that the barrel be permitted to make a complete rev olution in ei her locking or unlocking the .spindle,- and to secure this complete revolu tion the common construction employs 6 is'a transverse section on the same separate operating member between the barrel and the bolt having a lost motion connection with the barrel to permit this complete revolution of the barrel. This construction is objectionable as being complicated, expensive to manufacture and assenr ble, and as not having the desired strength. In my improved construction I have overcome these objections by eliminating the intermediate member and having a direct connection from the barrel or the key operated member with the bolt.

In the drawing the numeral 12 indicates a portion of a door having an opening 13 therein through which the square spindle 14 extends to the latch operating mechanism not shown. This spindle is connected to the shank 15 of an operating handle 16'. In the present construction this is of the T-type of handle although, of course, other types of handles may be employed if desired. The shank is mounted for turning movements in an escutcheon 17 which is secured to the surface of the door by any suitable means, such as screws 18, and has notches or recesses 19 spaced about the shank to cooperate with the locking bolt to secure the shank against these turning movements. The shank may be secured to the escutcheon to allow for a limited rocking movement relative thereto by the construction illustrated in my prior Patent #1,575,330, issued March 2, 1926, but which is not shown in detail here.

Mounted within the shank in a transversely extending opening therein is a locking bolt 20, and this bolt is so mounted that it is shiftable in a direction transversely of the shank to project one end thereof into one of the notches, or recesses 19 to lock the shank against turning movements in the escutcheon. It is preferred that the bolt and the opening therefor in the shank be substantially rectangular so that the bolt will not turn in this opening. The bolt is provided on one side with a transverse recess 21 and this recess is so shaped as to provide spaced longitudinally extending

shoulders

22 and 23 facing in the same direction, and the bolt is also provided with a transversely extending notch 24 passing through the shoulder 23 so that this shoulder is of less width than the shoulder 22. The recess also has spaced transversely extending walls and 26 adjacent these shoulders. The bolt is of such a length that it may be retracted into the shank and thus not interfere with the rotation of the shank.

Mounted in the shank and handle and extending longitudinally of the shank is a key operated cylinder or barrel 27, and this barrel is rotatably mounted in the shank, the rotation thereof being controlled by pin tumblers 28 in the well knownmanner, the tumblers. of course, being operated by a key 29 which may be inserted through a slot inder has direct connection with the bolt and with this connection forms an operating means for said bolt. I have shown the barrel as provided with an extension 30 which is preferably cylindrical and which may be either an integral extension of the barrel or a separate member rigidly connected to the barrel so that it is in effect in one piece therewith and turns with the barrel. In the construction shown in the drawing this member is a separate cylindrical member extending into-the barrel and secured thereto by a pin 31. At its inner end the bolt operating member 30 is slabbed off at one side, as indicated at 32, Fig. 11, to provide a substantially semi-cylindrical extension 33 having a fiat surface on one side thereof, and this extension is again slabbed off, as shown at 34, Fig. 10, in a direction transverse to the first cut but for a portion only of the height of the semi-cylindrical extension so as to provide a portion 35 which is of substantially the shape in cross section of a sector of a circle. Therefore, the end of the bolt operating member has an extension a portion of which adjacent the body of the member is substantially semi-cylindrical and has a portion 35 extending therefrom which is substantially sector shaped. When assembled in the handle of the shank this extension, including boththe semi-cylindrical and sector shaped portions, projects into the recess 21 in the locking bolt with the semi-cylindrical portion of this extension in transverse alignment with the notch 24 in the bolt so that under operating conditions a portion thereof may pass through this notch. The walls of the extension of the operating member 30 cooperate with the

shoulders

22 and 23 of the bolt to limit the opposite turning movements of the bolt operating member and the key to automatically determine the proper position of the barrel to permit withdrawal of the key, and the walls of this extension also cooperate with the transverse walls 25' and26 of the bolt to shift this bolt from and to the locking position by these turning movements of the operating member.

The operation is as follows: 'hen the handle is unlocked and the bolt 20 is retracted into the shank 15 the elements are in substantially the position shown in Figs. 1 and 2, and when in this position if the key is removed the tumblers 28 will lock the cylinder or barrel 27 against turning move ments. In this position the bolt 20 is held against accidental movement by a spring 36 mounted in a recess in the shank and pressing against one side of the bolt. As is well knownii he proper key .is inserted in .the Fig. 6 when the edge 39 of thecxtension on I .L L cylinder the brake in the tumblers will be brought into alignment with the line between the cylinder and enclosing shank and the cylinder with the operating member 30 may be rotated to the right or clockwise, as viewed in Fig. 2. In the movement of this member from the position of Fig. 2 to the positions of Figs. 3 and 3 it will haveno etlcet on the bolt because thcscctor shaped portion of the extension will merely pass through the space between the

shoulders

22 and 23, This arrangement, therefore,providcs a lost mo tion connection between the barrel or cylinder 27 and the bolt which will allow arertain amount of turning movement of the barrel without affecting the bolt. When, however, the elements reach the positions shown in rigs. 3 and 3 the edge 37 of the sector will engage the transverse wall 26 of the bolt. and as this edge is eccentric to the axis of rotation of the member further turning movement of this member will cause this edge, cooperating with this transverse wall, to force the bolt downwardly, as indicated in the drawing to the positions shown in Figs. 4t and d, and this moven'ient of the bolt will project the end thereof into one of the notches orre'cesses 19 in the escutcheon and lock the shank and spindle against rotary movements. However, when the elements have reached the positions of Figs. l and 4t: the key cannot be withdrawn from the cylinder or barrel because it has not completed an entire revolution, and therefore, the elements must permit it to complete thisrevolut-ion without affecting the position of the bolt in order to permit the removal of the key. Further turning movement of the operating member 30 from the position shown inllig. f or to the right or clockwise will carry it to the position shown in F 5 at which time the wallElS on the semicylindrical portion of the extension will engage the shoulder 22 on the bolt and preventfurther rotation of the operating mom]. 1' and the barrel. This shoulder 22 is so located that rotation of the barrel is stopped when the tumblers 28 are in alignment and the key may be. withdrawn from the barrel. The plane surface including the wall 38 is set at a slight angle to the plane of the key so that when in this position the edge 39 of the sector 35 overlaps the lower transverse wall 26 on the bolt, as shown in Fig. 5, and therefore, forms a positive stop to lock the bolt in the extended or locking position. i

'(lf course, the operation of unlockingthe handle is merely a reverse movement o'fthe key and barrel or arotation to theiieft or countercloclnvise. as viewed in Fig. 5, of the drawing. The first part of this reverse movement will have no effect on the bolt until the parts reach the position shown in the operating, member will engage the up per transverse wall 25, and then continued movement of the member in the counteri clockwise direction will cause this edge by a camming action on this wall to shift the bolt into the shank and withdraw it from the locking position. As the edge 89 leaves the wall 25 the member 30 and the key have not completed the entire reverse revolution but this is permitted. by the relative positions of the walls and shoulders on the bolt and the operating member which allow the operating member to return to the position shown in Fig. 2 at which time the wall 10 on the extension 35 will engage the lower shoulder 23 on the boltand will stop further reverse movement. This shoulder is so located that this movement is limited or terminated at the completiono't the reverse revolution of the key and barrel, and therefore, the key is automatically stoppedin position wit 1 the pin tumblers 28 in alignment so that the key may be withdrawn.

It will be apparent from the foregoing description that I have eliminated the inter mediate element between the operating member and the bolt now generally employed in locks of this type to secure the required lost motion between the key'operated barrel and the bolt. I have thus simplified theconstruction and have also, therefore, reduced the cost of-manufacture in that there is one less part to make and the assembling operation is simplified. This construction also is stronger than the old construction and less liable to get out of order, and it provides positive stops for the key in both the locked and unlocked p0sitions,.and in addition it prov'ides'a positive stop for the bolt when in the locked position to lock it in this position.

Having thus set forth the nature of my invent-ion, what I claim is: p

1. In combination, a movably mounted locking bolt, a rotatable key controlled membcr extending in a direction transversely of the bolt, said bolt being provided with a recess in one side with shoulders facing in the same direction at opposite sides of said recess, and an extension on said key controlled member projecting into said recess and having walls to cooperate with said shoulders to limit the turning movements of said member in opposite directions and walls cooperating with the walls adjacent said shoulders to shift said bolt by said turning movements. I

"'2. In combination, a movably mounted lockingbolt. said bolt being provided with a recess in one side having shoulders on opposite sides thereof facing in the same direction. one of said shoulders being of less width than the other, and a key controlled member extending in direction transverse- Kill ' in one side having ly of the bolt and mounted for turning movements, the inner end of said member being slabbed oil at one side to provide an extension projecting into said recess and said extension being slabbed off in a direction transverse to the first cut and for a portion only of the length thereof.

3. In combination, a movable locking bolt, said bolt being provided with a recess shoulders on opposite sides thereof facing in the same direction, said bolt being provided with a transverse notch to reduce the width of one of said shoulders, and a cylindrical key controlled member extending in a direction transversely of the bolt and mounted for turning movements, the inner end of said member being slabbed off at one side to provide a substantially semi-cylindrical extension to project into said notch and recess and said extension being slabbed off for a portion of its length in a direction transverse to said first cut to provide a substantially sector shaped portion to extend beyond said notch.

4. In combination, a movable locking bolt, said bolt having a transverse recess in one side and spaced, longitudinally extending shoulders in said recess, said bolt being also provided with a transverse notch extending through one of said shoulders so that said shoulder is of less width than the other shoulder, a key controlled member extending in a direction transversely of said bolt and mounted for turning movements, :1 sub stantially semi-cylindrical extension on the inner end of said member projecting into said recess and adapted to enter said notch, and said extension having a substantially sector shaped portion extending beyond said semi-cylindrical portion and into said recess in position to cooperate with the walls of said recess.

5. The combination with a movable bolt provided with a recess in one side having longitudinally extending shoulders and transverse walls, of a single operating member mounted for turning movements having an extension projecting into said recess and provided with walls and shoulders to cooperate with the walls and shoulders of the recess to limit the turning movements of said member in both directions and to shift the bolt by said turning movements.

6. The combination with a movable bolt provided with a recess in one side haying longitudinally extending shoulders and transverse walls, of an operating member mounted for turning movements and provided with an extension comprising a substantially semi-cylindrical portion and a substantially sector shaped portion projecting into said recess in position to cooperate with said shoulders to limit the turning movements of said member and to cooperate with said "alls to shift the bolt by said turning movements.

7. The combination with a movable bolt provided with a recess in one side having longitudinally extending shoulders and transverse walls, of a cylindrical operating member extending in a direction transversely of said boltand mounted for turning movei'nents, said member being slabbed off at its inner end to provide a substantially semi-cylindrical extension and said extension being slabbed off for a portion of its length in a direction transverse to said first cut to thus provide walls to cooperate with the shoulders of the bolt to limit the turning movements of said member and to cooperate with said transverse walls to shift the bolt by said turning movements.

8. The combination with a movable bolt provided with a recess in one side having longitudinally extending spaced shoulders facing in the same direction and spaced transverse walls adjacent said shoulders, an operating member extending in a direction transversely of the bolt and mounted for turning movements, said member being provided with an extension at its inner end com prising a substantially semi-cylindrical portion and a substantially sector shaped portion projecting into said recess with the walls thereof in position to cooperate with said shoulders to limit the turning movements of said member and to cooperate with said transverse walls to shift said .bolt by said turning movements.

9. The combination with a movable bolt provided with a recess in one side having longitudinally extending shoulders and transverse walls, of an operating member mounted for turning movements and having a single extension projecting into said'recess provided with walls and shoulders to cooperate with the walls and shoulders of the recess to limit the turning movements of said member in both directions and to shift thebolt by said turning movements, and coacting walls on said member and bolt to lock the bolt in locking position. 7

10. In combination a movable bolt provided with a recessin one side having spaced longitudinally extending shoulders and spaced transverse walls extending from said shoulders and an operating member mounted for turning movements in opposite directions having an extension projecting into said recess flattened in different planes to provide walls and shoulders to cooperate with the walls and shoulders of the recess to limit the turning movements of said member and to shift the bolt bysaid turning movements.

In testimony whereof I aflix my signature.

JOSEPH GOODMAN.