US2099343A - Door lock - Google Patents

Description

NOV. 16, 1937. R, B, MCFARLANE 2,099,343

' DOOR LOCK A Filed Aug. 14, 195e 2 sheets-sheet 1 l: Lf :1-5-

Inu E11-dint' Rnb EFILEIJTLDFEmlal-LE yNOV. 16, 1937. R B, MGFARLANE 2,099,343

l 1I-mentar' REID EFI: ElflTlnlaIflal-LE AHH Patented Nov. 16, 1937 UNITED STATES PATENTy OFFICE DOOR LOCK Application August 14, 1936, Serial No. 95,977

13 Claims.

` My invention relates to improvements in door locks and is particularly designed for use on automobile doors. The object of my invention is to provide a lock mechanism wherein the usual actu- 5 ating handle is eliminated, the lock being Operated by manual movement of ,the key receiving portion of the lock inward-ly towards the door.

A further object of my invention is to utilize such inward movement of the key receiving por- 0 tion of the lock vto move the lock bolt into the disengaged or unlocked position and at the same time tocompress a spring which swings the door open a slight degree as soon as the bolt is released. 15- A further object of my invention is to furnish a movable plate, which when in the locked position, covers the bolt actuating portion of the lock so that the bolt would remain in the locked position in spite of any attempts of thieves to drive the looked key'receving portion of the lock inwardly. y

With these and` other objects in view, my invention consists of a lock constructed and arranged all as hereinafter more particularly de- 25 scribed. and illustrated in the accompanying drawings in which- Fig. 1 is a vhorizontal cross-sectional view through theouter edge portion of an automobile door showing my lock contained therein.

Fig. 2 is a similar view to Fig. l, being partly in .section `and also showing the bolt inthe withdrawn position.

Fig. 3. is a front elevational view of the fragmentary portion of the door containing the lock and also a fragmentary portion of the door jamb.

"Fig 4is a side elevational view of the fragmentary portion of the door containing the lock.

Fig. 5 is a front elevational View of my lock 40 apart from the door.

Fig. 6 is a horizontal cross-sectional View through the door jamb, being taken'through a line4 on the same plane as the line 6-.6, Fig. 4.

Fig. 7 is lalsoa horizontal cross-sectional View through Ithe door jamb being taken through a line inthe same plane as theline `I'I, Fig. 4.

Fig. V8 is a horizontal cross-sectional View through the lock beingtaken through the line 3 8, Fig. 5. s

Fig. 9 is asimilar view to. Fig. 8, thebolt being.

shown inthe withdrawn position.

Fig.: v10` is a side elevational. viewof my lock. Fig. 1.1 :is a vertical Vsectional view ytaken through the linesl I-'-,I I, Fig.i10,. f

(Cl. 'Z0-147) Fig. 12 is a similar view to Fig. 11, the `bolt being shown in the Withdrawn position.

Fig. 13 is a horizontal cross-sectional View through the lock, bei-ng` taken through the line I3-I3, Fig. 11.

Fig. 14 is a perspective view, partly in section, of the key receiving portion of my lock, showing the latch therein inthe locked position, and

Fig. 15 is a similar View ,to Fig. 14, showing the latch in the unlocked position. 10.-.

Like characters of reference indicate corresponding parts in the different views of the .draw-V ings.

My lock comprises a base plate I upon which the various lock elements are mounted. This plate is secured againstthe inner side of the door 2 in any suitable manner, the bolt 3 and the-lug 4 protruding through the orices in the edgeof the door. The bolt 3 slides upon the face of the plate I and is supported at one end by a U-shaped strap 5 which is secured to the plate, and at the other end protrudes through an orifice 6 in theturnedup edge lof the plate I. The doorjamb 8 is formed with a recess 9 for the reception of the bolt end as 4illustrated in Fig. 6'. The end of the bolt 25 3 has an inclined face so that it moves inwardly as the door is closed, following standard practice.

Upon reference to Figs. 8 and 9, it will be seen that the bolt 3 is formed with a transverse orifice I0 extending therethrough, in ,the vicinity of its protruding end. The portion II of the bolt at the inner end of the orifice I0 is raised in height and the face I3 4of the orifice curves upwardly to such portion.

'Ihe bolt is normally retained in the protruding position by a spring, as Shall be hereinafter eX- plained, and to draw or move the ,bolt inwardly I furnish a plate I3 which is movable towards the boltl 3. The inner face of the plate Ij 3 carries a wedge member I4, the inclined face I5 of which 40 engages the curved face I2 of the oriiice I 0 in the bolt. As the plate I3 is moved towards theV bolt, the wedge I4 enters the orice I0 and through the "engagement of the respective faces I5 and I2 the bolt is slid inwardly from the posi-` 45 tion shown in Fig. 8 to the position shown in Fig. 9.

In order to return the plate I3 to its initial position and permit the bolt to again protrude, the

plate I3 is formed with Athe lug 4 which pro- 50 trudes from the edge ofthe door. When the'bolt is in the withdrawn position as illustratedV in Figs. 2 and 9, the plate I3 has moved horizontally intothe position shown in dotted lines in Fig. 4. To return the bolt 3 ,toI the protruding position, 55

the plate I3 and lug 4 have to be moved to the position shown in full lines in Fig. 4. In accomplishing this, I provide the construction as shown in Fig. 7, wherein it will be seen that the door jamb 8 is formed with a long transverse recess I6 having a slot I1 in the bottom thereof through which alug I8 protrudes. The lug is carried upon a slidable cap I9 which is movable along the length of thel slot I1 against a spring 2U. When the door is closed with the bolt 3 withdrawn, the lug 4 cornes into engagement with the springv held lug I8 in the jamb, and the strength of the spring 20 is sufficient to retain the lug I9 substantially in the position illustrated in Fig. 'I wherein it must, of course, push the lug 4 from the position shown in dotted lines in Fig. 4 to the position shown in full lines, whereby the plate I3 and wedge I4 are moved away from the bolt, and the bolt permitted to move outwardly and into the recess 9 in the door jamb.

Superposed inspaced relation tothe plate I3, I furnish a second rectangular plate 2I which is secured to the plate I3 by a pair of corner bolts |22 passing through the plates and having spacing washers carried thereon. The plate 2| has a cylinder 22 centrally mounted on its outer Vface and surrounding an orice 23 in the plate. The cylinder 22 carries a lock 24 in its outer end, and through .which protrudes a lock operated rollback 25, movable into the positions illustrated in Figs. 14 and 15 through the use of a withdrawable key 26.

The plates I3 and 2| are formed with aligned orices Vin Y the vicinity of their ends for the receptionof guide posts 21 which extend upfwardly from the base plate I. The upper ends of the posts are contained within orices in a U-shaped strap 28 which is secured to the base plate I and extends over the plates I3 and 2|. The strap is formed with a central orice 29 through which the cylinder 22 protrudes. The

plates I3 and 2| slide upon the posts 21, andV to obviate binding, the plate I3 carries a pair of sleeves 30 surrounding the posts. The upper ends of the sleeves 30 extend to the bottom face of the plate 2 I.

In order to provide a synchronization between the outward movement of the bolt 3 and the movement of the plate I3, I furnish a link 3I which is pivotally connected at one end to the side of the bolt and at the/other end to a lug 32 in the bottom face of the plate I3. As the plate I3 moves outwardly the pull of the link retracts the bolt 3. As the cylinder carrying plate 2| isY secured tothe plate I3, it will be seen that when the cylinder, which is designed to protrude from the face of the door, is pushed inwardly, that the bolt 3 will be withdrawn and permit the door to open. VAs the plate I3 moves inwardly under pressure exerted against the cylinder, the lug 4 also moves inwardly and through its engagement with the lug I8 compresses the spring 20. When the plate I3 has been pushed inwardly to fullyV retract the bolt 3 and disengage it from the orice` 9, the boltand wedge. I4 are in relative engagement as shown in Figure 9, with the spring 2|] fully compressed and tending to move the lug 4 outwardly. After-the cylinder 22, plate I3 and lug 4 have been pushed inwardly, the operator removes his inward hand pressure against theV cylinder 22, at which instant the compressed spring 20 pushing against the lug 4 kicks the door open several inches. In other words, as the door is freely swung, the outward movement of thelug I8 under the Vpressure of the spring 2B moves the door sufficiently to prevent the bolt reentering the orifice 9, and further expansion of the spring 23 continues the door opening movement. The lug 4 throughV its engagement with the spring actuated lug I8 has a Ytendency to move across the lock and reproject the latch 3, but the initial slight movement'of the door is suicient to move the point of the latch out of register with the orice 9. l Y

In order to lock the door against unauthorized opening, I furnish a pin 33 which extends from the base plate I through the orice IU in the bolt 3 and also through an orice 34 in the wedge I4 and its plate I3. The topl of the pin 33 is substantially flush with the top of the plate I3 when the bolt is out and the lock in the position illustrated in Fig. 8. Upon the top of the plate I3 I provide an intermediate plate 35 which is swingable labout one of the posts 21 and is so'designed that in one position its curved end 33 lies alongside the top of the pin 33 and'orice 34, as illustrated in Fig. 12; and in another position 'covers the top of theV pin 33 and orioe 34, as illustrated in Fig. 11. Whenthe plate 35 is in the position illustrated in Fig. ll, it, through its engagement with the top of the pin 33, retains the plate I3 against downward movement, thus locking the bolt in the protruding position.

The plate 35 can be swung into the Vunlocked position as illustrated in Fig. 12 either by means of the key 2B or the cam plate 3'I. The cam plate is of substantially triangular shape and swingably mounted in the vicinity ofone apex upon the other post 2I. The plate is formed with a lug 38 which lies alongside the lug 4 andby means of which the plate is manually swung into either of the two positions illustrated in Figs. 11 and 12. One edge of the camV plate engages the end 36 of the plate 35 to move', it to unlocking position shown in Fig. 12, whereby the door can be opened through pressing'the cylinder 22 inwardly. As the cylinder 22 moves inwardly and depresses the plate, the end of the pin 33 becomes contained in the inner end of the cylinder as illustrated in Fig. 9.

If the door is locked, thatis with the locking plate 35 in the position shown in Fig. 1'1 and it is desired to open the door, the key 2B is inserted in the lock and turned. The turning of the keyl swings the rollback 25 from the position shown in Fig. 14 to the position shown in Fig. 15, and as such rollback 25 extends downwardly to a sufcient extent to engage the edge 39 of the end 36 of the plate 35 as illustrated in Fig. 10, its movement `from the position illustrated in Fig. 14 to the position illustrated in Fig. 15 will swing the plate 35 into the position illustrated in Fig.

12 whereby the cylinderV 22 may be pressed in wardly and the door opened. l The orifice 44 in the plate 35 freely receives the Varm 4,2 and is po-V sitioned very close to the post 21 about which the plate is swung, so that movement of, the plate 35 from the position shownY in Figure 11 to the position'shown in Figure 12 causes very' little resultant movement of the rod 4I).

As it is desirable to so construct the lock that it will normally be locked against opening ex-V orifices 43'inwthe plates I3' and 2|, andf'falsoy through van ori'el 44''in9the locking platef3'5. The rod 40 is encircled by a spiral spring 45 wbiclii bears at one end against one of the' blocks 4 I and at the other against the collar 46'? secured to theA rod; The spring 45 is normally under compression and tends to Inove'the4 arm 42 in the directionf-indicatedrby the arrow in Fig. 13.' As' Vthe arm 42 bears against the side of the'l orifice'44 in the plate 35, it tends 'to resil'ientlyA retain the plate` 35 in the position illustrated -i'n Fig.' 11.'

` `The other end of the rod 40 is lconriectedtoY aV cross bar 41 which is in turn connected'toi the innerend of the bolt `3 so that the tension on' thespring 45 also tends to retainthe bolt in the protruding position.` y K 48 is a strap having a slot 49 therein through which the connecting pin-|l betweenthe crossV bar`4'I and the boltv 3 passes. The 'otherV end of the stra'p48 is connected to some suitable handle in the interior of the car so that when the handle is pulled the corresponding 4movement of the strap 48 willpull the bolt 3 "tovunlock the door from'the insideof the car. When the bolt 3 is retracted through moving the lock 22 inwardly, the pin 5I) slides along the slot 49 so that the handle inside the car is not moved. Upon reference to Figs. 1, 2, and 3, it will be seen that I form the outer face of the door with a recess 5I in which the outer end of the cylinder 22 is contained so that it does not protrude from the door. To retain the plate I3 in its inward or lock unlatched position I furnish a spring held ball stop 52 mounted on the side of the strap 28 and which engages the edge of the plate and retains it against free movement until the lock is again actuated. The ball stop 52 is only provided to retain the plate I3 against rattling movement, and is not suiiiciently strong to interfere with the normal outward movement of the-plate I3 when the door is being closed with the lugs 4 and I 8 engaging one another. A spring ball stop 53 is also provided in the face of the plate I3 to engage either of two recesses 54 in the abutting face of the cam plate 31 whenit is in either of the adjusted positions.

From the foregoing description it will be apparent that I have devised a simple and yet very eilicient door lock, which although applicable to any type of door is more particularly designed for automobile doors, in 'that the provision of my lock obviates the necessity of providing the usual door handles which mar the streamlined appearance of modern cars and also which have caused serious injury in accidents where pedestrians are involved, and although I have shown a particular embodiment of my' invention, it is to bey understood that I can make such changes and alterations as I may from time to time deem necessary, without departing from the spirit of my invention as set forth in the appended claims.

What I claim as my invention is:

l. In a door lock, a slidable bolt, a bolt retracting element movable inwardly from the face of the door to' retract the bolt, and resilient door opening means supported by the door jamb and against which the bolt retracting element presses when moved inwardly to retract the bolt.

2. In a door lock, a slidable bolt, a wedge element movable inwardly to engage and retract the bolt, a lug protruding from the wedge element through the side of the door, and resilient door opening means supported by the door jamb and against which the lug presses when'the wedge element is moved inwardly to retract the bolt.

T35.' In a door lock; a slidable bolt, a bolt'A actu- Y ating-i wedge element ymovable inwardly from the face of the door toretract the bolt, andresilient door opening means supported" bythe doorjamb and against which the actuatingelement presses.,

ating lelement movable inwardly, towards the inner face of the door to retract the 'bolt'. a sta-y tionar'yl element positioned adjacently to the movableI element, a bolt locking member carried upon the bolt actuating movable element and adapted in one position to engage the stationary,V

element" and retain the movable element against bolt actuating movement, and key operated means to engage and actuate the bolt locking member to move it out of engagement with the stationary element. n

6. In a door and jamb, a lock mounted on the door, a slidable bolt incorporated in the lock and engaging the door jamb, a bolt actuating member protruding from the door, and means supported by the door jamb and engaging and'moving the bolt actuating member to move the bolt towards the jamb.

7. In a door and jamb, a lock mounted on the door, a slidable bolt incorporated in the lock and engaging the door jamb, a bolt actuating member protruding from the door, and resiliently movable means supported by the door jamb and engaging and moving the bolt actuating member to move the bolt towards the jamb.

8. rIn a door and jamb, a lock mounted on the door, a slidable bolt incorporated in the lock and engaging the door jamb, a bolt actuating member protruding from the door and movable towards the bolt, and means supported by the door jamb and resiliently movable across the jamb, said means engaging and moving the bolt actuating member during the closing of the door. 9; In a door and jamb, a lock mounted on the door, a slidable bolt incorporated in the lock and engaging the door jamb, a bolt actuating member protruding from the door and movable towards the bolt, a wedge movable in conjunction with the bolt actuating member and engaging and sliding the bolt, and means supported by the-door jamb and resiliently movable acrossv the jamb, said means engaging and moving the bolt actuating member during the closing of the door.

l0. In a door and jamb, a lock mounted on the door, a slidable bolt incorporated in the lock and engaging the door jamb, a bolt actuating member protruding from the door and movable towards the bolt, a wedge carried by the bolt actuating member and engaging and sliding the bolt, a lug protruding from the door jamb and movable thereacross, a spring normally retaining the lug against movement, said lug engaging and moving the protruding portion of the bolt actuating member during the closing of the door.

11. In a door lock, a key receiving lock portion adapted slidably to protrude through the outside face of a door, a bolt slidably positioned rearwardly of` the key receiving lock portion and adapted to engage the door jamb, a wedge member movable inwardly in conjunction with the key receiving lock portion and adapted to engage and slide the bolt into the retracted position, a movable locking plate adapted to be interposed at will between the key receiving lock portion and the wedge member to retain such key receiving lock portion against inward movement, and a rollback movable under actuation of the key to engage and move the locking plate.

12. In a door lock, a key receiving lock portion adapted slidably to protrude through the outside face of a door, a bolt slidably positioned rearwardly of the key receiving lock portion and adapted to engage the door jamb, a wedge member movable inwardly in conjunction with the key receiving lock portion and adapted to engage and slide the bolt into the retracted position, a movable locking plate adapted to be interposed at will between the key receiving lock portion and the Wedge member to retain such key receiving lock portion againstl inward movement, a rollback movable under actuation of the key to engage and move the locking plate, and a cam mem* ber manually movable from the side edge of the door and also engaging and moving the locking plate. Y t l I 13. In a door 1ock,`a key receiving lock portion adapted slidably to protrude through the Voutside face of a door, a bolt slidably positioned rearwardly of the key receiving lock portion and adapted to engage the door jamb, a wedge member movableinwardly in conjunction with the key receiving lock portion and adapted to engage and slide the bolt into the retracted position, a movable locking plate adapted to be intera

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