US1779438A

US1779438A - Door handle

Info

Publication number: US1779438A
Application number: US300032A
Authority: US
Inventors: Charles B Lowe
Original assignee: Ferro Stamping & Manufacturing Co
Current assignee: Ferro Stamping & Manufacturing Co
Priority date: 1928-08-16
Filing date: 1928-08-16
Publication date: 1930-10-28
Anticipated expiration: 1947-10-28

Description

l 2 Sheets-Sheet l C. B. LOWE DOOR HANDLE Filed Aug. 16, 1928 Oct. 28, 1930.

c. B. LowE DokR HANDLE Oct. 28, 1930.

2 Sheets-Sheet 2 Filed Aug. 16, 1928 Patented oct. 2s, 1930 rarnnr rrien CHARLES B. LOWE, OF DETROIT, MICHIGAN, ASSIGNOR TO FERRO STAMPING & MANU- Y FACTURING COIVISPANY, l0F DETROIT, MICHIGANL. a CORPORATION OF MICHIGAN noon nanntn Application filed. August 19338. Serial No. 300,032.

rllhis invention relates vto automobile door handles,A and has for its prinoipal object the provision or"v a door handle .that normally operates to move the look bolt into and out operativeV relation to the striker plate oarried by the door jamb, but which when i .looked position, will bey freely rotatable with- `the use Vof a key, but the outward movement of the look barrelto again connect the door handle to the look shaft can be etieoted only yough the use oi a properly bitted Vkey operable in the look barrel.

A. further object `of this invention is the provision of a pluralityof dogs pivoted upon a portion of the lock shaft and arranged to be moved into and out .of looking engagement with aV portion of the door handle `underthe 4control ot the movement of 4the lock barrel@v Y f @ther objects and advantages fwillbe apparent from* the vfollowing -fdesoriptiom wherein reference is made to the accompany` ino' drawings, illustratingv a preferred emhodiment of my invention and wherein `similer reference numerals `designate similar' parte throughout the several views.`

lnthe drawings: y Figure 1 is a longitudinal cross-section through a door handle and adjacent portions of a look shatt,.the handlebeing connected to the shaft for simultaneous'rotation. Y

Figure 2 is a longitudinalv cross-section through-the same parts, the section ,being taken at substantially right angles to the section line in Figure Y Figures '3 and d are detail Cross-sections taken substantially on the lines 3 3 vand 4-4 of Figure 1.

VTFigure 5 is a longitudinal cross-section ing handle.

. the

similar to Figure 1, but showing the look shaft ldisoonneoted from the door handle.

Fivnre 6 is a diagrannna'tio perspective view ot the forward portion of the look shaft u and the look barrel. in disassembled positions.

Figure 7 is a detail cross-section taken substantially on the line7-.7 of Figure 5, and

Figure 8 is a detail Cross-section taken substantially on the line 8-8 of Figure'.

Referring now to the drawings, -gthe Ynumeral 5 designates a portion of a vehicle door having a metallic Vcover plate 6 apertured as at for the reception oi' ity in any desired manner to control means formo-ving the usual look holt or the like. It is to be understood that any desired form of door look may be utilizedffin connection with my improved door handle, and no at tempt is made to illustrate a complete door look herein. The outer extremity of the look shaft S is formed with a Cylindrical portion 9 adapted to form. a bearingY for the rear extremity of an elongated ,hollow cylinder 10, as hereinafter described, and terminating'at its forward portion in a neck 11 of reduced diameter and provided with a slot 12 substantially centrally of the neck 11 and adjacent# portion of the hearing` member 9, as can be hest seeny in Figure 6. Pivotally mounted within the slot 12 is a pair of late ing dogs 13 preferably constructed substantially asshown and provided with forwardly extending Curved extremities 13gh above the pivot pin 14.

The rear extremity of the elongated hollow cylinder lOis inturned substantially as shown to form a stop for the rounded portion 9 of the lock shaft 8, and theouter extremity of the oylinderlO Vis preferably formed with outward radialextenslons 15 Jfor securing the the operat- A look shaft 8 extends through door and is fastened at its inner eXtremcylinder to the knob or lever portion 16 of the Y door handle. This lever portion 16 of the door handle may be of any suitable construetion, and only so much thereof as is needed to show the positioning of the cylinder 10 and associated parts is illustrated herein. Within the forward portion ot the cylinder 10 is sli dably -mounted a key-controlled tumbler look 17, the rear extremity of which is formed as a hollow cylinder with its central recess of slightly greater diameter than the diameter of the neck 11 of the lock shaft (note Figures 1 and 2 and The neck 11 extends within the recess in the rear portion of the lock barrel 17 and between the forward extremity of the neck 11 and the forward wall of the recess in the loclr barrel is positioned a strong coil spring 18 to normally force the lock barrel forwardly as far as permitted by parts presently to be described. A flat washer 19 is preferably arranged between the rear extremity of the spring 18 and the neck 11 of the lock shaft with its r r surface in engagement with the forwardly extending portions 13a of the latching dogs 13 so that the pressure of the spring 18 will be transmitted to the dogs 13 to spread their rear extremities as far apart as is permitted by the cylindrical rear extremity of the lock barrel, the rear wall of the lock barrel bein0` preferably flared, substantially as shown, to Jform closely fitting stops for the dogs 13, as hereinafter described. A pair of diametrically opposed slots 2O are formed in the cylinder 10 in alignment with the rear extremities of the dogs 13, whereby the dogs can swing outwardly into the slots 2O whenever the lock barrel 17 is moved forward a sufficient distance to permit such outward swinging of the dogs. l/'Vhen the dogs 13 are positioned within the slots 2() the door handle is connected with the loch shaft 8 so that the locl shaft will be rotated simultaneously with the door handle. ldlhen, however, the dogs 13 are swung inwardly out of engagement of the slots S20 with the cylinder 10, the door handle is disconnected from the loclr shaft 8 and can be freely rotated upon the bearing portion 9 of the loclr shaft without communicating its rotation to the loclr shaft. The inward swinging of the dogs 13 from their locks ing position, as shown in Figure 1, to their disconnected position, as shown in Figure 5, is effected by sliding the lool: barrel 17 rearwardly from its outer position, as shown in Figure 1` to its inner position, as shown in Figure 5. Such inward sliding of the vloclr barrel 17 forces the iiared rear wall of the loch barrel to swing the dogs 13 inwardly on their pivot pin lll and withdraws the lower portions of the dogs from the slots 20, while at the same time, the coil spring 13 is further compressed because of the movement of the forward wall of the recess in the lock barrel relatively to the neclr 11 of the lock shaft. Means are provided to limit the forward movement of the lock barrel 17 so that it cannot be entirely withdrawn from its position within the forward portion of the cylinder 10. Such means is best shown in Figures 1, 3 and 5 and comprises a leaf spring 25 secured at one extremity to the lock barrel, as by means of the pin 22 and having its opposite extremity free and partially extending within rel partially rotated.

a recess 26 in the periphery of the lock barrel. intermediate its ends, but adjacent its free extremity, the spring is formed with a bend normally extendingwithin a comparatively long slot formed in the wall of the cylinder' 10. lWhen the loclr barrel 17 is free to slide forwardly the pressure of the spring 13 forces it forwardly until the forward edge of the soring 25 engages the forward wall of the long slot 27.

Means are also provided to automatically prevent the forward sliding of the lool; barrel 17 after it has been slid to its inner position as shown in Figure 5 until a suitable key is fitted into the lock barrel and the lock barr[his locking means is best shown in Figures 1, 3 and 5, and coma leaf spring 21 riveted or otherwise y se ured at one extremity to the locl: 17. as by the pin 22, while its free exis inbent and extends within a recess in me periphery of the lock barrel (note lre. 3). its long as the lock barrel is in its rd position, as shown in Figure 1, the er peripheral wall of the cylinder 10 will aintain the free portion of the spring Q1 within the recess 23, but when the loclr barrel is slid rearwardly a suflicient distance to bri the free portion of the spring 21 into mneut with a short slot 24 in the cylinder ce portion of the spring 21 snaps outinto the slot 2st substantially as shown re rl`he forward wall of the slot en contacted by the extended free por tionof the spring 21 and limits outward movement of the lock barrel 17 until the extended free portion of the spring is withdrawn from the slot- 24.

The withdrawal of the extended free portion of the spring 21 can be secured only by utilizing a properly bitted hey to free the tumblers of the lock in the usual manner, whereupon the lock barrel 17 is partially rotated in the direction of the arrow in Figure 7. This partial rotation of the lock barrel brings the side wall of the slot 24 into engagement with the curved intermediate portion of the spring 21 forcing the free extremity of the spring 21 inwardly into the recess 23 until such free extremity is entirely withdrawn from engagement with the forward wall of the slot 24, whereupon the pressure of the compressed coil spring 18 will serve to slide the lock barrel forwardly until stopped by engagement of the spring 25 with the forward wall of the long slot 27. lt will be noted from the sho-wing in Figure 7 that the longer slot 27 is also of relatively greater width than the shorter slot 24, so that rotation of the lock barrel to completely Withdraw the spring 21 from engagement with the forward wall of the slot 24 will not serve to also withdraw the spring 25 from within the longer slot 27. The spring` 25 always remains within the slot 27 regardless of the position of the lock barrel llt;

17. rlhe forward sliding of the lock barrelV after partial rotation thereof, as abovedescribed, serves to ,permit thewoutward swinging of the rear portions of the locking dogs 18 under the pressure of thespring 18 transmitted through the-washer 19 to the forward extensions 13a0f the locking dogs. The outward swinging ofthe locking dogs enables their entrance within the aligned slots 20 of.

the cylinder 10 and so serves to again connect i the door handle to the lock shaft. Turning door a sufiicientdistance to permit the mounting ofa coil spring 29 between the door and Y the forward portion of the escutcheon. A

spacer sleeve 30, also preferably of ornate appearance, 1s arranged to surround the cylinder 1G between'the lever portion 16 ofthe door Y handle and the escutcheon 28, and being prefed with erably secured at lits forward extremity to the vlever portion 16 of the door handle. rl`he contactingpo-rtions of the spacer sleeve and escutcheon arespaced to rprovide ready rotation of the sleeve on the escutcheon. Y

ln assembling my'improved doorl handle, the cylinder 10 and spacer sleeve 30 `are secured to thel lever portion 16 of the door handle in any suitable mannen.' after which the lock shaft is introduced into the cylinder 1t through ali-aperture in the lever portion of the handle andpermitted to pass through the cylinder until the rounded portion 9 `of the shaft engages'theinturned rear extremity of the cylinder. rlhe lock f shaft is then turned relatively to the cylinder 10 to bring Vthe locking do `s 13, which have been pivotally mountinthe slot V12 of the lock shaft, into llgnment with the slots 20 in the cylinder. v1"he lock barrel is preliminarily" assembled with the leaf springsQl and secured`ther`eon, whereupon the coil spring 18 and washer 19 are inserted within.v the recess in the rear portion of the lock barrel. The lock barrel is then pushed into the forward portion of the cylinder 10 until the spring 25 snaps into the larger slot 27 in the cylinder, the recessed rear I portion of the lock barrel meanwhile passing over the neck-11 ofthe lock shaft. Beforethis position is reached., the washer 19 contacts with the forward extremities 13a of the locking dogs 13 and forces the rear extremities of the dogs outwardly into the slots 20. rlhe device is now ready for use, though it is to be understood that suitable hidden means, such asset screws or the like can be utilized to more firmly secure the lock barrel within the lever portion of the handle if desired.

TvVhile it will -be apparent that the illustrated embodiment of my invention herein disclosed iswell, calculated to adequately fulfill, the objects and advantages primarily stated, it is to be understood that the invention is susceptible to variation, modification and change within the spirit and scope of the subj oined claims. f l

."What l cla-im is 1. lncombination with a door lock, a lock t shaftsecured adjacent one extremity to a movable portion of the door lock and carrying adjacent its opposite extremitya pair of pivotally mounted dogs, a door handle rotatablyv mounted with its rear portion encircling the free extremity of tnelock shaft and provided with spaced slots for the reception of .therear portions of said dogs, a vlock barrel mounted -within the door handle for sliding and rotating movements, a spring arranged f between the lock shaft and barrel to normally press .the barrel forwardly and the rear portions ofthefdogs outwardly into said slots, and means'V carried .by the lock barrel for swinging the dogs out of said slots when the barrel is slid rearwardly.

g 2. ln combination with .a door lock, a lock Y shaft vsecured adjacent one extremity'to a movable portion ofithe door lock carrying adjacent its oppositeextremity a pair of pivotally mounted dogs, a door handle'rof` tatably mounted with itsrear portions encircling the free extremity of the lock shaft and provided with spaced slots for the reception` of the rear portions of saidv dogs, a lock barrel mounted within the door handle lfor sliding and rotating movements, a spring arranged between the lock shaft and barrel to normally press the barrel forwardly and therear por# tions of the dogs outwardly intosaid slots, means carriedby the lock barrel for swings ing the! dogs out of said slots whenthe barrel is slid rearwardly, and key-controlled means for releasing the lock barrel from its rearmost position. i Y 1- i 3. En combination with a door lock, a lock shaft secured adj acentl one extremity to a movableportion of the doorflock' and carrying` adjacent its oppositeextremity a pair of pivotally mounted dogs, a door lhandle rotat-L ably mounted with its rear portion encircling the free extremity'of the lock shaft and provided `with spaced slots for the reception of tions of the dogs outwardly into said slots,`

means carried by the lock barrel for swing-V ing.V the dogs out of said slots when the barrel is slid rearwardly, means Vto limit the i forwardmovementof the lock barrel, andl sepaf rate means for holding the barrel in its rear.-

most position when it has been slid to such position.

T he combination with a lock shaft having a slotted extremity, a pair of dogs pivotally mounted upon the slotted extremity of the lockv shaft, a rotatable door handle including a cylinder having its rear portion encircling the slotted extremity of the lock shaft and provided with spaced slots tor the t reeeition of the rear portions of said dogs, a loci; barrel mounted within the forward portion of e cylinder for sliding and rotating movements, a sp" iged between the barrel and said extremity of 'the lock shaft lo normally press the barrel forwardly and the rear portions of the dogs outwardly into said slots, means to limit the forward movement of the loch barrel, and means carried by the locx barrel to engage the dogs to swing them out of engag ment with said slots when the barrel is moved rearwardly.

5. The combination with a lool; shaft having a slotted extremity, a pair Vof dogs pivotally mounted upon the slotted extremity of the lock shaft, a rotatable door handle including a cylinder having its rear portion encircling the slotted extremity of the lool: shaft and provided with spaced slots for the reception of the rear portions of said dogs, a -loclr barrel mounted within the forward portion of the cylinder for sliding and rotating movements, a spring arranged between the barrel and said extremity of the loch shaft to normally press the barrel forwardly and the rear portions of the dogs outwardly into said slots, means to limit the forward movement of the lock barrel, means carried by the lock barrel to engage the dogs to swing them out ofrengagement with said slots when the barrel is moved rearwardly, and hey-controlled means for holding the lock barrel in its rearmost position after it has been slid thereto.

6. rThe combination with a locl shaft having aI slotted extremity, av pair of dogs pivotaliy mounted upon the slotted extremity of the loch shaft, a. rotatable door handle including a cylinder having its rear portion encircling the slotted extremity of the loch shaft and provided with spaced slots for the reception of the rear portions of said dogs, a lock barrel mounted within the forward portion of the cylinder for sliding and rotating movements, a spring arranged between the barrel and said extremity of the lock shaft to normally press the barrel forwardly and the rear portions of the dogs outwardly into said slots, means to limit the forward movement of the lool; barrel, means carried by the lock barrel to swing the dogs out of engagement with said slots when the barrel is moved rearwardly, and key-controlled means for holding the loch barrel in its rearmost position after it has been slid thereto, including a leaf spring fixed upon the lock barrel and normally compressed within the cylinder, the cylinder being provided with a slot for the reception of a portion of said leaf spring when the loch barrel is slid to its rearmost position.

7. ln combination with a door lock, a lock shaft secured adjacent one extremity to a movable portion of the door lock, and carrying adjacent its opposite extremity aI pair of movably mounted dogs, a door handle rotatably mounted adjacent the free extremity of the loch shaft, and provided with a pair of slots `for the reception of the outer portions of said dogs and a slot spaced from said pair of slots, a lock barrel mounted within the door handle for sliding and rotating movements therein, means operable upon sliding movement of the lock barrel to connect the handle to the lock shaft or disconnect it therefrom through the medium of said dogs, and latching means cooperating with spaced slot for maintaining` the lool; barrel in position disconnecting the handle from the lock shaft, and releasable by rotary movement of the lock barrel.

8. ln combination with a door lock, a lock shaft secured adjacent one extremity to a movable portion of the door lock, and carrying adjacent its opposite extremity a pair of movably mounted dogs, a door handle rotatably mounted adjacent the free extremity of the lock shaft, and provided with a pair of slots for the reception of the outer portions of said dogs and a slot spaced from said pair of slots, a lock barrel mounted within the door handle for sliding and rotating movements therein, means operable upon sliding movement of the lock barrel to connect the handle to the lock shaft or disconnect it therefrom through the medium of said dogs, a leaf spring carried by the lock barrel and adapted to snap into said spaced slot when the lock barrel is moved to a position disconnecting the handle from the lock shaft, said spring being releasable from said slot by rotary movement of the lock barrel.

ln witness whereof I hereunto set my hand.

CHARLES B. LOYVE.