US1507631A

US1507631A - Vehicle door lock

Info

Publication number: US1507631A
Application number: US388733A
Authority: US
Inventors: Bayard E Taylor
Original assignee: Individual
Current assignee: Individual
Priority date: 1920-06-14
Filing date: 1920-06-14
Publication date: 1924-09-09
Anticipated expiration: 1941-09-09

Description

B. E. TAYLOR VEHIC@ noon Locx A Filed June 192C).- 5 -Shoah-Shut l Sepe. "9, 1924.

Sept. 9, 19,24. y1,507,631

Bf E. TAYLOR VEHICLE Doon Locx l Filed June 14. i920 s shun-ami' 2 Sept. 9 1'924. l' "1,507,631

` B. E. TAYLOR vzHIcL noon Loox Filed June 14. 1920 s Sapman 5 "20 strike p said lock havingy a plurality of'manually- UNITI-insures BAYARD nl. TAYLOR, oFoAK PAnmrLL'moIs. r

vnmcnn noon Loox.

Application' led Iune'14, 1920. ,a Serial No. 388,783.`

To aZlww/m t may concern:

Be it known that I, BAYARD E. TAYLOR, ya citizen of the United States', and a resident of the village of Oak Park, in the county of Cook and State of Illinois, have invented certain new andfuseful Improvements in a Vehicle Door Lock; andI do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, and to the numerals of reference marked thereon, which form a part of this specification.l

This inventlon relates more particularly to an improved type of door lock adapted 15. primarily for use on automobile doors and having a spring-controlled latch bolt adapted to automatically engage in the frame strike plate with an auxiliary wedge mem'- ber adapted to co-act with. the latch bolt and ate' to hold the door against rattling,

operable devices Wherebythe'latch bolt may be retracted from theV interior 'or exterior of the automobile to permit `opening of `the 2,5 (lool- Y A rl t Itis anpobject ofthis invention to provide a vehicle door lock wherein thelockin bolt and Wedgev are `adapted toberetract'e "into release position' by any one, cfa-plurality j f handle loperatedf mechanismswhichf'are operable independentlyjof oneQ/another: Itis also an ob]ect` of 'thehinventio'n topro# vide a vehicle door lock/whereinV4 a'movable sp `ng'controlled g member having y afffgear S mounted thereonfor -thepurposelofI-retracting alocking: bolt either by'1nens"-`ofa handle roperated l"rack-"bar or -bym'ea-ns of fa handle: actuated arm. f Another? ect of the inventionyfis-f'the *40 construction of a vehicle door lockwherein Other and further of this invention will be apparent from the disclosures in the 'specification and drawin t glhe inventionf(in a preferredform) is illustrated in thedrawings and hereinafter,

more Ifully described 'y On the drawings:

Figure 1 is a front elevation of a door lock embodying the principles of this invention and showing one of thedoor handles for actuating, the lock mechanisms.

Figure 2 is an enlarged transverse section taken on the line 2-2 of Figu ing the outer door handle and the key lock in elevation. ,y f Figure 3 isan enlarged fragmentary detail 1section'taken on the line3-3 of Figure A Figure 4 is an'enlarged front elevation of the lock mechanisms with thecover'removed and with. the locking bolt-in' lockingl pp si; tion. y i

Figure `5 isla Sinner ,view yshowing the lockinc"V bolt held inretracted position by one'o the handle"'operated'retractors.`

re 1l and. show- 'y Figuref6"is a' fragmentary detailfview partlyin section taken'-`;o n'

rigure 7;'is'a'fragmentary detail section is ade/air 9 #9 parigi-1re 8.51 I

Frigus v1o is freut-awaits granada ,y

Y1-,Figure 11 'san*end view thereof.

1in@ E'12.1172 gf "Figure 1L hicledoo'r havingmounted ina recess thereof a door j.lock embodying: the:` principlesof .this

invention. l Thelock comprisesa ,casingplate vorfmountin'g plate Zone end of'whichispbnt ,forwardly atfan angle to aord faiange 3 `having an opening L thereinfto permit :the *i* latching members to project therethrough. Secured in a stud 4 projecting from the plate rotate 'on a pin 9 secured to the depressed bar 11.

portion 7 of the float member, as shown in Figure 8. The teeth of the gear 8 are disposed at two opposite portions of the gear only with the lower teeth in mesh with the teeth 10 of a slidable rack bar 11. The rack bar 11 is cut out yat one corner to provide a shoulder 12 adapted to engage against a stop 13 formed on the plate 2 for the purpose of limiting the inward movement of the rack The outer end of the rack bar 11 is deflected at 14 and has rigidly secured thereon a wedge 15, which is slidable through the opening in the flange 3 and which is furthermore adapted by rearward movement of the rack bar 1l to move in a channel strap 16 secured on the outer surface of a casing or box 17 attached over the lock mechanisms mounted on the plate 2. The casing 17 is provided with an opening 18 to permit retraction of the wedge 15. The deflected portion 14 of the rack bar 11 is cut away at the sides thereof to afford shoulders 19 adapted to Contact flanges 2O integrally formed on opposite margins of a latch bolt 21 forming the lower arm of a yoke. The upper arm of the yoke is provided with a head 22. The yoke is integrally formed at one end of a second or upper rack bar 23 having teeth 24 in mesh with the upper teeth of the gear 8.

Normally the spring 5 acts to hold the latch bolt 21 in its projected position to engage in a strike plate secured in place upon the door frame or jamb to receive the latchV bolt when the door is in closed posit-ion. To

Aretract the latch bolt 21 to permit opening of the door from the exterior of a vehicle an outer door handle 25 is provided having a stem 26, the inner squared end of which projects into a squared opening formed in one end of adog or roll back 27 supported between the plate 2 and the casing 17. j The free end of the roll back 27 is in contact with the head 22 so that when the handle 25 is turned the roll back 27 forcesv the latch bolt 21 and the rack bar 23 inwardly, -therebyv causing the gear 8 to retract the rack bar 11 and the wedge 15, as shownin Figure.

For the purpose of opening the door from the interior of the vehicle a second handle 28 is provided with the stem 29 thereof projecting downwardly through the upper ledge of the door, as shownin Figure 1, to permit the-flattened end 30 of the stem to project through an opening in the upper part of the casing 17 and engage in an opening of a g collar or barrel 31. The lower half of oneside of the barrel 31 is cut away to a'ord a Contact face '32.l The barrel 31 -iS .rotatably sup orted in a bracket or housing 33 secured to t e mountin plate 2. Slidably en' aged in a slot 34 of t e casing .17 is a bar orlock 35 having guide flanges 36. The block 35 is held in the slot 34 by the upper flange 370i a bracket plate 38. A lower flange 39 is formed on the bracket plate 38 and alords a guide for the rack bar 23. Rotatable on the inner surface of the slidable block 35 is a roller 40 in engagement with an edge of vva hanging arm 41. The upper end of the arm 41 is pivotally secured to the plate 2, while the lower curved end of'sa-id arm 41 engages in the float member 6.

A locking device is provided to permit the latch bolt 21 to be locked in its projected position to prevent actuation of the handle 25. For this purpose a third handle 42 is provided on the inner side of the door. The handle 42 has a squared stem 43, which projects through a squared opening in a collar 44 disposed between the casing 17 and the plate 2. The end of the stem 43 is provided with a tenon 45 adapted to engage ina slot formed in a rojection 46 secured to the bar'- rel of a pin vook 47. The lock 47 is mounted in the door 1 and is adapted to be released from locking position by means of a key. To

permit the handle 42 to be operated from the inner yside of the door when the lock 47 is unlocked, the stem tenon 45 is pulled out of engagement with the projection 46. The stem 43 may then be turned by the handle 42 to actuate the collar 44. A projection or lu 48' is provided on the collar 44 and is engage in a notch 49 provided in a dog or cam 50.

The cam 50 is pivotally mounted on a pin 51v secured to the mounting plate 2. A pin 52 is also Secured on the mounting plate 2 and has a spring 53 engaged therearound. The ends of the spring 53 cross each other to permit one end to contact the pin 51 and the other end to engage the edge of lthe cam 50.

The latch bolt 21 is provided with a notch 54 shown in dotted lines in Figures 4 and 5 for the purpose of receiving the cam 50 when the latch bolt is in its projected position, as shown in Figure 4.

Figures 10 to 14 inclusive illustrate a 11H5v .having an opening-therein to permit the latching members to be projected there? through. Secured in a stud 57 on the plate 55 is the inner endof a coiled spring 58, the

outer end of which rojects upwardly and is engaged against t e inner end of a "slid able member 59. .The sldable member 59 is sldably engaged in a slot or.opening 60 provided longitudinally in a casing or housing 61 attached to the mounting plate 55`to inner surface of the front or outer plate of the casing 61. The inner end of the shdable member 59 is bent to form a flange 62, which is positioned `to slide in a guide slot or opening 63 provided in the mounting plate 55. Rotatablv mounted on the inner surface of the slidable member 59 is a gear or pinion. 64 in mesh with the teeth of an upper slidable rack bar 65. The rack bar 65 is provided with a guide flange 66, whlch 1s adaptyedto slide in a slot 67 provided in the mounting plate 55. The end of the slot 67 limits the inward movement of the rack bar 65. The outer end of the rack bar 65 is deflected at 68 and has integrally formed thereon a yoke, the lower arm of. which forms a latch bolt 69 having flanges 70 integrally formed onopposite margins thereof. The

latch bolt 69 is adapted to slidably project through an opening in the flange 56 to engage in an opening of a strike Aplate secured in place upon the door frame or -jamb to receive the latch bolt when the door is in closed posit-ion. The upper' arm of the yoke has ahead 7'1 integrally formed thereon.

Normally the spring 58 acts to hold the latch bolt 69 in its projected locking position. To -retract the latch bolt 69 to permit opening of thedoor from the exter1or of a vehicle, an outer door handle is provided similar to the handle 25. Secured on the inner end of the handle stem is a dog vor roll back 72, the free end of which contacts the head 71 so that when the handle is turned the roll back 72- forces the latch bolt 69 and the rack bar 65 inwardly, thereby causing the gear 64 to simultaneously retract a slidable rack bar 73. lThe teeth of the rack -bar 73 mesh with the gear 64. A

. flange '74 is integrally formed atone side of the raek bar 73 and .is slidably engaged in a guide slot 75 formed in the casing 61.. The outer end of the rack bar' 73 is curved upwardly and then forwardly and has rigidly secured on the end thereof a wedge 76. The wedge 76 is slidable through the opening in the flange 56 to co-act with the latch bolt 69 to prevent rattling of the door when the door-is in closed position. The wedge 76 'in its inward and outward 'movements is adapt-ii,

edto slide through a channel strap 77 secured on the outer surface of the casing 61. For the purpose of opening the door from A the interior of the vehicle by retracting'the Figures 4 and 8.` With the door in closed position the latch bolt engages in the opening providedin the strike plate securedto the door j amb, and the wedge 15 wedges against the locking edges ofthe flange 3 and ofY the strike plate, thereby permitting -the latch bolt and the wedge to hold the door rigidly in place eliminating rattling of the door. The wedge 15 follows the bolt in the wedging operation and is slidable with respect to the latch bolt 21. Under the impulse of the -spring-5 the wedge is driven into the'space between the flat surface of vthelatch bolt and the edge of the associated strike plate.

With the lock mechanisms. in the positions shown in Figure 4, the closed door may be readily opened from the'exterior of the vehicle by turning the outer handle 25, thereby causing the roll back 27 .to press against the head 22 to force the rack bar 23 inwardly moving the gear 8 and the floating member 6 rearwardly therewith against the action of the spring 5. The gear 8 being in mesh with the rack bar 11, both the latch bolt 21 andthe wedge 15 are simultaneously retracted as a unit, and the door may be swung into open position on its hinges. Release of thehandle 25 permits the stressed spring 5 to again force the latch bolt 21 and the wedge 15 outwardly through the opening in the flange 3.

To open the door from the interior of the vehicle vthe second handle 28 is turned thereby causing the flattened' end 30 ofthe stem4 29 to partially rotate the barrel31.- This operation of the barrel 31 acts to force the slide bar 35 rearwardly in the casing slot 34, whereby the roller 40 acts against the pivoted arm 41 to swingfthe same `rearwardly. The rearward movement of the arm 41 retracts the member 6 and the gear 8 mount- Y ed thereon. The gear beinginl engagement ,with both of the rack bars 11 and 23, said rack bars are simultaneously retracted and thereby cause withdrawal of the latch bolt 2lV and the wedge 15 against the action of the spring 5. The door may nowbe swung into open position. v

Attention is called to the fact that the latch bolt 21 and the wedge 15 may be simultaneously retractedl by either one of the

Vhandles

25 or 28 independently of the other.

The rearward movement of the rack bar 11 is limited by the stop 13 on the plate 2,

while the rearward movement of the upper rack bar 23 is limited by the flanges 20 engaging against the shoulders 19 of the rack bar 11.

When it is 'desired to lock the latch boltV 'i Vagainst retraction to prevent opening of the door by operation of the

handles

25 or 28, a key is inserted in the pin lock 47 and the barrel? of the lock 47 is turned causing the. 48 to throw the dog 50 upwardly to engage in the notch 54 of the :latch bolt 21.

The latch bolt 2l and the rack bar 23 are thus locked against sliding movement'to prevent vopening of the door. It will thus be seen that the outer and

inner handles

25 and 28 cannot be operated. To permit retraction of the latch bolt and wedge so that the door may be opened, the key must be inserted into the pin lock 47 so that the lock barrel may be rotated to move the dog 50 back into the release position shown in Figure 4. The door may now be opened by, operating either the handle 25 or the handle 28.

` When the pin lock 47 is in unlocked condition the door may be locked from the ini terior of the vehicle by operating the third handle 42, whereby the dog 5() is moved into Alockiinglz; engagement with the latch bolt 21.

It will thus be seen that all the doors of a vehicle except one may be locked from the inside of the vehicle when the pin locks 47 are in unlocked position by means'of the handles 42, the last door permitting 'a person to leave the carto lock said last door by means of a key from the exterior of the vehicle. All of the doors may be unlocked by keys from the exterior of the vehicle or by means of the handles 42 from the interior of the vehicle when said handles are pulled inwardly an amount sufficient to disengage the tenons 45 from the barrel projections 46 thereby permitting the handles 42 to rotate the collars 44 to actuatethe dogs 50.

In the modified form of door lock illustrated in Figures l0 to 14 inclusive, the operation is similar to that already described. The latch bolt 69 and the wedge 76 may be retracted from the exterior of a vehicle by actuating the roll back 72 by the outer handle. To retract the latch bolt 69 and the wedge 76 from the interior of the vehicle, the lever 78 is swung'rearwardly, thereby causing the rack bar 65 to slide rearwardly together withthe rack bar 73 and the slide member 59 against the action of the spring 58. Release of either of the handles permits the spring 58 to shoot the latch bolt 69 and the wedge v76' back into their normal projected positions.

It will be noted that the rack bars and gear are so arranged as to permit the latch bolt andthe wedge to move together and differentially with respect to each other so that the wedge vmay move on the latch bolt to engage between the latch bolt and the edge of the strike plate opening to take up any play of the latch bolt and thereby prevent rattling ofthe door when in closed position.

The various parts comprising the door lock are adapted to be punched out of sheet metal instead of being cast,` thereby obviating machining and -permitting the parts to be assembled in operating relation to provide a veryI thin lock.

I am aware that numerous details of 1. A door lock comprisin a latch bolt,

a wedge, a mechanism for impelling said latch bolt and the wedge outwardly into a latching position, handle mechanisms operable independently of each other for retracting the latch bolt and wedge, and means locking the latch bolt' against retraction by said handle mechanisms.

2. A vehicle door lock comprising a latch bolt, a wedge slidably mounted adjacent thereto, a mechanism for impelling said latch bolt and wedge outwardly into a latching position, an outer handle mechanism for retracting the latch bolt and wedge from the exterior of the vehicle to permit opening of the door, and an inner yhandle mechanism for retracting the latch bolt and wedge from the interior of the vehicle and independently of the outer handle mecha- 'nism to permit opening of the door.

3. A door lock embracing a rack bar, a yoke formed at one end thereof, a latch bolt on one arm of the yoke, a head on the other arm of the yoke, a second rack bar, a wedge at one end thereof adapted for co-.act-ion with said latch bolt, a slidable member between said rack bars, a gear thereon in mesh with said rack bars 4for adjusting the la'tch bolt and wedge simultaneously and adapted to permit dierential movement between the latch boltwedge, and a coiled spring connected with said slidable member adapted to move the latch bolt and wedge into latching position, and means adapted to operate against said yoke head to cause retraction of said latch bolt and Wedge.

4. A door lock embracing a rack bar, a yoke formed at one end thereof, a latch bolt on one arm of the yoke, a head on the other arm of the yoke, a second rack bar, a wedge on one end thereof for co-action with said latch bolt, a slidable member between said rack bars, a gear on said slidable member in mesh with said rack bars for adjusting the latch bolt and wedgesimultaneously and adapted to permit differential movement between the latch bolt and wedge, a springconnected with said slidable member for moving the latch bolt and wedge into latching position, a. handle operated means adapted to engage said yoke head to cause retraction of the latch bolt and wedge, and a second handle operated means adapted to actuate said slidable member to cause retraction of the latch'bolt and wedge independently of said first mentioned handle operated means.

5. In a door lock the combination with a pair of slidable rack bars, a latch bolt on one of said rack bars, a wedge on the other Y rack bar, said latch bolt rack bar having a notch therein means for vholding said latch bolt and wedge in latching position, and

means adapted to be moved to enga e in the 'notch of said latch bolt rack bar to said latch bolt rack bar to hold the latch bar locked against retraction, and a key controlled device adapted to b e operated by means of a key from the outer side of the door to permit retraction of the latch bolt -and wedge.

a 7. In a vehicle door lock'a pair-of slidable rack bars, a latch bolt. on one of said rack bars, a wedge on the other r'ack bar for co-action with said latch bolt, mechanisms for movingthe latchbolt and wed e into projected latching position, a pivote member, means operable, by means of a key and handle for moving the pivoted member into engagement with one of. the rack bars to hold the latch bolt locked against retraction to prevent opening of the door, said means adapted to be operated to cause release ofthe pivoted member to unlock the latch bolt, and handle-operated devices each other `to retract the latch bolt and wedge to rmit openn of the door.

8. A ve 'cle door loe com rising a pair of slidable rack bars, a latch lt on one of` said rack bars, a 4wed e on-the'otherrack barfor co-action wit the latch bolt, atv

spring' controlled slidable member for moving the latch bolt and wedge into latchin position, a gear thereon mesh with sai rack bars, a ivoted arm engaged with said slidable mem r, a slide bar, handle means for actuating the slide bar, and a roller on said slide bar adapted to engage the pivoted arm to swing the same to cause retraction of the latch bolt and wedge from latching position to ermit opening of the door.-

9. In a oor lock thev combination with latchingmeans, of resilient means'for normally4 holding the same`in projected latching position, a rotatable notched locking de vice, a spring for holding thevsame in retracted and in locking position, and a rotatable toothed collar projecting into said notch adapted to be actuated from either side ofthe lock to rotate said device into locking engagement with said latching means to' hold the same against retraction. 10. Ina door lock the combination with a spring impelled latching means, of a locking device embracing a notched lookin cam, a spring having both ends connec therewith for holding the same in an ad-v justed position, rotatable toothed means adapted to co-act with said cam, a rotatable handle member adapted to beoperated from one side of the door lock to cause said'rotatable means izo-move the cam into loc engagement with said latching means, an

a key operated lock adapted to be operated ock to from the opposite side of the door locking engagement move the cam out of with said latching means topermitretraction thereof. adapted to be' operated independently.` of

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

BAYARD E. TAYLOR.-v- Witnesses: y