US1417423A

US1417423A - Automobile doos lock

Info

Publication number: US1417423A
Authority: US
Publication date: 1922-05-23
Anticipated expiration: 1939-05-23

Description

E. TAYLoR. AUTOMOBILE DOOR Il OCK. APPLICATION FILED .U 2 v 1,417,423 "E Patented May23,1922

I 5T V3 B. E. TAYLOR.

AUTOMOBILE DOOR LOCK. APPLICATIQN mso JUNE 21. |920.

- Patented May 23, i1922.

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UNITED s'rAres BAYARD E. TAYLOR. OF OAK, PARK, ILLINOIS.

AUTOMOBILE :DoorJ Loox.

LHAZS.

Application filed .Tune 21,.

To f/,ZZ 10710771 t may concern.'

Be it known that I, BAYARD E. TAYLOR, a citizen of the United States, and a resident oi the village of Oak Park. in the county ot Cook and State of Illinois, have invented certain new and. useful Improvements in an Automobile Door Lock; and I do hereby declare that the following isa Stull. clear` and exact description ci the same. reference being; had to the `accrmipanyingdrawings` and to the numerals ci: reference marked thereon. which :Form a part of this specification.

In the building of closed automobile bodies the thickness of the doors is governed bythe vertically adjustable sashes and the thickness ot the door 1rocks. In order that the thickness ot the doors may be reduced to a minimum, efforts have been exerted to produce an automobile door lock wherein the operating parts are so related that the thickness of the lock is reduced to a minimum consistent with strength and wearing qualities ot the operating parts.

This invention pertains to an improved type of a vehicle door lock of slight depth or thickness and wherein the locking bolt and an associated wedoje member are adapted to be operated by pivoted levers against t1 e action of controllingV springs to permit openino; oit' the door from either the exterior or interior of the automobile.

It .is an object ot this invention to provide an automobile door lock ol simplified construction and of minimum thickness, and adapted to be looked o 'r unlocked from both sides of the door to permit retraction of the locking` bolt and its wedge member by the operation oit' either an outer handle or an inner handle.

It is also an object of the invention to construct door lock ot comparatively slight depth wherein the latching members may be retracted Jfrom the inner side of a door by means of a handle adapted to be rotated in a direction which will simultaneously retract the latchingr members and swiner the door outwardly into open position with one operation.

,finotherobject of the invention is to provide a striking plate with an inturned flange Specification of Letters Patent. Patnted B/[ay 2.3a `1922.

1920. Serial No. 390,342.

to provide an increased bearing; surface for the wedge bolt. i

`It is 'further object of this vinvention to provide a vehicle door lock with a means for securing` the latchingmembers iniezitended position by turning a thumb piece in a direction ordinarily used to move a bolt into latching position.

It is furthermore an objectoi' the invention to provide a thin door lock wherein a locking' bolt and 'its associated wedge member are adapted to be normally moved and held in their projected positions by means of a spring` controlled lever pivoted on the wedge member and engaging the locking' bolt.

It is an important object of this invention to provide a thin door lock requiring' but a very shallow recess in the door to receive the same and haring` a lockinggcam adapted to be moved into locking' or unlockingposition from the innez1 side ol the door by means of a thumb handle or `from the exterior of the door by means ot a key actuated pin lock.

Other and further important objects ot this invention will be apparent from the disclosures in the specification and drawings.

The invention (in a preferred i'orm) is illustrated in the. drawings and hereinafter more fully described.

0n the drawings:

Figure yl is a Front elevation ot a door lock embodying the principles of this invention and showing the handle 'for operatingr the lock mechanisms from the inner side ot the door.

Figure 2 is a fragmentary top plan view of the door.`

Figure 3 is an enlarged fragmentary detail section taken on line 3 3 ont Figure 2.

Figure 4L is an enlarged section taken on line -ll of Figure l with parts shown in elevation.

F igure 5 is an enlarged detail front elevation of the lock with the cover and wedge member removed.

Figure 6 is an enlarged detail front elevation of the loch-,with the cover removed jected latching position.

Figure 7 is a reduced section taken on line 7 --7 of Figure 6 and showing the cover in position.

Figure 8 is an enlarged detail section taken on line 8-8 of Figure l.

Figure 9 is an enlarged detail section taken on line 9 9 of Figure 1.

Figure 10. is a fragmentary detail section taken on line 10-10 of Figure 6.

Figure 11 is a fragmentary detail section taken on line 11-11 of Figure 6. 1

yFigure 12 is an elevational view of a modified form of door lock with the cover removed. j

Figure 13 is an end View thereof with the cover in place.

Figure 14 is a section taken on line 14.-14 of Figure 12.

Figure 15 is a detail sectional view taken on line 15u15 of Figure 14. y

Figure 16 is an` elevational view of the modifiedloclr with the cover, wedge mechanism and the lever handle removed.

As shown on the drawings:

The reference numeral 1 indicates a vehicle door and Q the door frame having a recess 3 therein. Rigidly secured to the door frame 2 is a strike plate Ll provided i with an opening 5, which registers with the door frame recess 3. Integrally formed on the strike plate l is a slightly inclined flange 6 which projects into the recess and affords an increased. bearing surface for a wedge bolt hereinafter described.

The inner side of the door 1 is provided with a comparatively shallow recess for receiving the relatively thin door lock embodying the principles of this invention. The lock illustrated in Figures 1 to 11 inelusive7 comprises a mounting plate or back plate 7, one end of which is bent forwardly at an angle to afford a flange 8 having an opening therein to permit the lock latching members to project therethrough. Secured in a stud vor boss 9 struck from the back plate 7 is the inner end of a coiled spring 10,` the outer end of which projects upwardly and engages against a lug 11 integ'rally formed on a pivoted lever or arm 12. The lower end of the lever 12 is pivoted on a pin 13 integrally formed. on one side of the inner end of a slidable bar 141-..v

lntegrally formed on the opposite side of the 'slidable bar 14; is a guide block or lng 15 `which projects into and is slidable in a horizontal guide slot 16 formed in a cover or casing 17 secured to the back plate 7 to enclose the `operating mechanisms of. the lock. The rearward. movement of the slide vlbar 14 is limited by the lug 15 striking the casing at the end of the guide slot 16. The .slide bar 14y is deflected at 18 and has rigidly secured on the end thereof a wedge 19, which is slidable ythrough the opening in the flange 8 and is furthermore adapted.

by rearward movement of the slide bar 14 i to move in a channel strap or Saddle 20 secured on the outer .surface of the back plate 7' to afford guide for the latching members of the lock. The saddle 2() projects out- `wardly from the back plate through an The casing of j the toward the back plate 7 to afford lugs orl

flanges

27 and 28. The arm 26 is deflected at to permit thesame to form a guide member slidable in a longitudinal slot 3() proivided in the casing 17. `Theinner end of the arm @Gis bent toward the back plate 7 to forma lug or flange 31. As shown in Figure 5. the upper end of the lever12 contacts the flange 28 of the upper arm v25 to `hold the latch holt in projected position.

To `retract the latch bolt 23 topermit opening` of the door from the exterior of avehicle, an outer door handle 32 is provided 'ha-ving a stem 33 the inner vsquared end of which projects into a squared ,opening formed in one end of a `dog or roll back 34. supported between. the back plate 7 and the casing 17. The free end ofthe roll back is in contact with the flange 27 of the upper arm 25 of the latch boltvso that when the outer handle 32 is turned the roll back 3-1- forces the latch bolt inwardly togetherwvith the wedge 19 since 'the shoulders of the wedge bar 121 are in contact with the latch bolt flanges 22.

For the purpose of opening the door from the interior of the vehicley a second or inner handle 35 is provided on the top of the door.

A. vertical stem or shaft 36 is secured to the y handle so and. projectsdownwardly into the door to ,permit the flattened end thereof to have a cam 37 rigidly secured thereon. The cam 37is supported in a bracket 38 secured. to the back plate 7 and around the upper cylindrical portion of the cam. The cam 37 is in contact with a lug 39 integrally formed on one margin of a hanging lever or arm 4:0. The upper end of the arm ll() is pivotall v mounted on the back plate 7 while the lower end of said arm 4:0 lis disposed against the flange 31 and between the backplate 7 and. the latch bolt arm 26. i

'A locking device is provided to permit the or For this purpose a third handle or thumb turn 41 is provided on the inner side ofthe door.. T he thumb turn 4i li: la squared stem 42, which projects through a squared opening in a collar .disposed between the casing` 17 and the back plate 7. The end ot the stem 42 is provided with a tenon 44 adapted to be removably engaged in a slot formed in a plug or projection 45 secured to the barrel oia pin lock 46. The lock 46 is mounted in the door 1 and is adapted to be unlocked "from the exterior of the door by means of a key. To permit the thumb turn 41 to be operated from the inner side of the door when the lock 46 is locked, the stem tenen 44 is pulled out of engagement with the projection 45. The stem 42 may then be turned bythe thumb turn 41 to actuate the collar 43. l projection or lug 47 is formed on the collar'43 and is adapted to be engaged in a notch 48 provided in a dog or rain 49. The cam 49 is pivotally mounted on pin 50 secured to the back plate 7. A pin 51 isalso secured on the back plate '7 and has a spring 52 engaged therearound. The ends of the springv52 cross each other to permit one end to contact the pin 50 and the other endto engage the edge ot the cam 49 to coact with a rounded nub or tooth 5B formed on said cam. The cam 49 is provided with a notch 54 for the purpose of engaging` the inner lower1 corner 55 of the latch bolt 23 when the latch bolt isl in projet-ted position and the cam 49 has been turned into lockingk engagement with the latch bolt, as shown in Figure 6L ln the modiiied form| or the device illustrated in Figures .12 to 16 inclusive the door lock comprises a mounting or back vplate 56. one end `of" which is bent at an angle to atford a flange 57 having an opening therein to permit the latching members to be pro jected therethrough. .Secured in a stud 56 on the back plate 56 is the inner end of a coiled lower spring 59.A the outer endy of which projects upwardly and is engaged against a shoulder 601of a slidable wedge bar 61. The outer end of the wedge bar 61 is deflected and has rigidly secured thereon. a wedge 62. which projects through an opening provided in a casing or housing 63. The casino' 63 is rigidly secured to the back plate 56 to enclose the operating mechanisms oit thedoor lock. Secured to the back plate 56 is a saddle '64, which projects outwardly from the casing opening` to aflord a guide .for the wedge 62. The spring 59 acts to hold the wedge 62 in its projected position.

lnten'rally formed on the sides of the slidable wedge bar 61 are guide flanges 65, which are directed toward the back plate 56 .and slidably engage thevside edges of a slidable latch bolt V66. The outer. or latching i end of the latch .bolt 66 has integrally formed. on the oppositev margins thereof flanges 67.. between which the wedge 62. is slidable. The inner end of the latch bolt 66 is slidable betwen two guide flanges or lugs 66 struck trom the back plate A flange or lug 69 is integrally formed on the inner end of the latch bolt. lntegrally formed on tie upper margin of the latch bolt is a shoulder 70, against the inner end of which the outer end of a coiled upper spring 71 is engaged. The inner end of the spring 71 is connected to a stud 72, which is rigidly secured to or st from the back plate 56. The spring 71 actsto normally hold the latch bolt 66 in its projected. position.

To retract the latch bolt 66 trom the eXterior of' a vehicle door, an outer handle is provided having a stem the inner squared end 73 of which projects into a squared opening formed in one end of a dog or roll back 74 supported between the back plate 56 and the casing` 63. The free end of the roll bar-lr 74 in contact with the iront end of the latch bolt shoulder so that whenthe outer handle is turned the roll back 74 will force the latrh bolt 66 inwardly together with. the wedge 62 since the inner ends o't the wedge bolt flanges 67 are in contact with the slidable wedge bar 61.

i For the purpose ot retracting the latch bolt 66 from the inner side of a vehicle doorl an inner handle or lever 75 is provided. rlhe lower end ot the lever 75 is removably engaged on pin 76 iormed on a flexible strip 77 of the back plate 56 below a horizontal slot 78 cut in the lower portion of said back plate. The lower end of the lever 75 is provided with a series of apertures 79 to permit the pin 76 to be engaged in difterent of the lever apertures for the purpose oi adjusting the lever.

ects downwardly into the easing 63 1n front of and in contact with the flange 69 of the latch bolt. Y

The. operation is as follows:

ln the 'term ot door lock shown in Figures l -to 11 inclusive the spring 10 pressing against the vpivoted arm 12 acts to hold the latch bolt and the wedge 19 in their projected positions :s shown in Figures 6 and 6. lilith the door 1 in closed position the latch bolt `fully engages in the .strike plate opening 5 before movement of the wedge begins.` The wedge 19 then follows and wedges against the inturned flange 6 of the strike plate 4,- thereby permitting the latch bolt and the wedge to hold the door rigidly in place in the door trame to prevent rattling of the door. Thev .vedge is slidable with respect to the latch bolt 23 and under the impulses oli the spring 10 is shot or driven into the space between the flat surface of the latch bolt 23 and the flange 6 of the strike plate 4.

With the locking cam 49 in release position7 as shown in Figure 5, the closed door 1 may be readily openedV from the exterior of The lever 75 pro-A the vehicle by turning the outer handle 32 thereby causing the roll back 34 to pressk against the fiange 27 to force the latch bolt 23 inwardly against the action of the spring 19. The lflanges 22 of the latch bolt being in Contact with the wedge bar 14, both the latch 'bolt and the wedge are siniultaneously retracted as a unit and the door may be swunginto open position on its hinges. Re-

lease ofthehant le permits vthe stressed spring 10 to again force or shoot the latch bolt l23 and the wed-ge 19 outwardly through `the opening in the back plate flange 8.

To -open'the door from the interior of the vehicle the inner handle 35 is turned thereby causing the cam 37 to partially rotate.

This operation of the cam 37 acts to force the pivoted` arm 40 rearwardly. The rearward movement of the arm 40 serves to retract the latch bolt 23 and the wedge 19 against theaction of the spring 10. With the turning of the handle 35 and the `retraction lof Vthe latch bolt and wedge the door is swung outi'vardly into open position with the fturned causing the lug 47 to engage in the notch 48 of the locking cam 49. The cam 49 vis thus moved upwardly from the position shown in Figure 5 into the locking position shown in Figure 6. The notch 54 of the cam 49 vpermits the cam to lockingly engage the corner 55 ofthe latch bolt 23. With the latch bolt 23 locked in position it will be noted lthat the

handles

32 and 35 cannot be operated to retract the latch bolt. To permitretraction of the latch bolt and wedge, the key must be inserted into the pin lock 46 so that the lock barrel may be rotated yto move the locking cam 49 back into release position. When the lock 46 is locked, the door 1 may be locked from the interior of the vehicle by first disengaging the tenon 44 from the lock projection 45 and then turning the Ithumb turn- 41 whereby the lockingfcam 49 is moved into locking engagement with the shoulder or corner 55 of the latch bolt 23. The tenon 44 is then again engaged in the lock projection 45. 1t will thus be seen that all the doors of a closed vehicle vexcept one i may be locked from the inside of the vehicle by means 'of the thumb turns or handles 41, the last door permitting a person to leave the car to lock the last door by means of a key from the exterior ofl the vehicle. All

of the doors may be unlocked by keys from` the exterior *of the vehicle when the thumb turns interfit the lock projections 45 or by means of the thumb turns 41 from the in terior of the vehicle when said thumb turns are disengaged from the lock projections.`

In the modified form of door lock illustrated in Figures 12 to V16 inclusive, the operation `is similar to that already described. The latch bolt 66 and the wedge 62 are held in their projected positions by the respective E springs 71 and 59. The latch bolt and wedge may be retracted from the exterior of a ve hicle by actuating the roll back `74by the outer handle of the door. To retract the latch bolt 66 and the wedge 62 from the interior of the vehicle the lever 75 is swung rearwardly, therebyengaging the latch bolt lug 69-causingthe latch bolt and the wedge to slide inwardly against the action of the

springs

59 and 72. Release of either of the -door handles permits the

springs

59 and 72 to shoot the latch vbolt and wedge outwardly into their normal projected positions The latch bolt andthe wedge are mounted to permit the salme to move Atogether when the door is opened but differentially with respect to veach other when the door isclose'd so that the wedge follows and moves on the latch bolt to engage between said latch bolt and the flange 6'of the strike plate 4, to take up .any play, thereby preventing rattling of the d oor when `in'closed position. i

Attention is directed tothe novel means whereby 'the lever 78 may be removably mounted in position so that the length of` the lever extending above the top of the door maybe changed to suit the various y types of doors `used yon cars of different make. To mount the lever 75 the apertured end thereof is projected into rthe casing 63. The

portion 77 of the back plate 56 is then' sprung outwardly to permitthe pin 76 lto engage in any one of the lever apertures 79 in register with said pin when the plate portion 77 is released and bent back into `the `plane of the back plate 56. The lever 75 may be removed if not required.

The various parts of the door lock are mostly constructed by punching themout of sheet metal, thereby obviating most of the machining7 and the few parts made by die casting of course require but little if any machining.

Iam aware that numerous details of construction may be varied through al wide range without departing from the principles of this invention7 'and I' therefore do not purpose limiting the patent granted otherwise than necessitated by the prior art.

I claim as my invention: y

1. A door lock comprising a latch bolt, a wedge member,` an arm pivotally mounted on 'said wedge member and engaging said latch bolt, resilient means engaging said arm for irst impelling said latch bolt and then the wedge member outwardly into latching position, and handle mechanisms operable independently of each other for retracting the latch bolt and wedge member against the action of said resilient means.

2. A door lock comprising a latch bolt, a wedge member associated therewith, an arm pivoted on said wedge member and en` gaging said latch bolt, control means engaging said arm for impelling said latch bolt and then the wedge member outwardly into latching position, handles operable independently of each other for retracting the latch bolt and the wedge member 'against the action of said control means, and means tor locking the latch bolt and the wedge 'member against retraction by said handles.

Z3. A lock comprising a slidable latch, a wedge member slidably engaged therewith, an arm pivoted on said wedge member and contacting said latch, and a spring engaging said arm to move the latch and then the wedge member into latching position.

4l. A lock comprising a slidable latch, a wedge member slidably engaged therewith, an arm pivoted on said wedge member and contacting said latch, a spring engaging said pivoted arm 'for holding the latch and the wedge members in projected latchng position, means for retracting said latch and said wedge member against the action of said spring, and a locking mechanism adapted to be moved into engagement with said latch to hold the latch and the wedge member locked in their projected positions against retraction by said means.

5. In a door lock the combination with a latch, of a member integrally formed thereon, flanges on opposite ends of said member, a pivoted arm, a spring mechanism engaged with said pivoted arm to cause the same to press against one oi said flanges to hold the latch in projected latching position, a roll back engaged with the other flange of said member, and a handle connected with said roll back and adapted to be actuated to cause said roll back to retract the latch against the action of said spring mechanism.

6. A lock comprising a slidable latch, a wedge mechanism slidably engaged therewith, and resilient means associated with the wedge mechanism adapted to move the latch and then the wedge mechanism into latching position.

In testimony whereof I have hereunto subscribed my name in the presence of two subscribing witnesses.

BAYARD E. TAYLOR.

Witnesses:

CHARLES W. HILLS, Jr., FRED E. PAESLER.