US1899997A - Doorlock handle - Google Patents

Description

Mafch 1, 1933. fP. w, SULLIVAN 1,999,991

DooRLoox HANDLE Filed July 8, 1951 the usual form of @seemed Mar. 7, i933 V.UNITED STATES PATENT OFFICE PERRY W. SULLIVAN, OF SOUTH BEND, INDIANA, ASSIGNOB TO THE 'STUDEBAKEB COB- i PORATION, OF SOUTH BEND, INDIANA., A CORPORATION OF NEW JERSEY DOORLOCK HANDLE Application led Iuly 8,

door lock that is strong and rugged in construction, which will not readily get out of order, and which it is almost impossible to manipulate for purpose of theft or trespass. It 1s a further object to provide a lock of the character indicated whichv will be neat and attractive in appearance and to which ey control may be applied.

Formerl it has been the practise to provide vehic e door locks with a key operated stop member which prevents rotation of the, lock handle to unlock the door. It has been a common practise among those desiring to commit trespass upon unattended vehicles to which such locks apply, to attempt to force the lock handle by means of a piece of pipe or other additional leverage, thereby either:

forcing the door open or breaking oil the lock handle with consequent trouble and expense to the owner of the vehicle. In such locks, it has also been possible to entirely remove the handle b removing the escutcheon plate from lthe oor after which'it is a comparatively simple matter to insert a properly-shaped instrument such as a screw driver into the lock and unlatchI the door. v

ln the two forms of locking mechanism which l'have here shown, the lock handle rotates freely when the door is locked and therefore since there is no resistance, it is not probable that the handle will be broken` ofi' by anyone attempting a felonious entry of the vehicle, and further since the handle cannot be removed from the door when the door is locked, it will not be possible to remove the handle and unlock the door by inserting an instrument in the lock.

Y Having thus set forth the principal objects and advantages of my invention, the same will now be briefiy described in order that others skilled in the art may make and 1931. Serial No. 549,393.

`Two suitable methods by be applied are shown` use the same. which my invention ma in the accompanying d ing, however, is to be considered as illustrative only and the invention is limited solely by the scope of the sub-joined claims.

Referring to the accom anying drawing: Figure 1 is a longitu inal sectional view of the preferred form of the invention, cer-- tain parts being broken away to better illustrate the construction thereof.

Figure 2 is a sectional view on the line 2--2 rawing. This draw-4 of Figure 1 showing the mechanism in locked position.

Figure 3V is a sectional view on the line 2 2 of Figure 1 showing the mechanism in unlocked position. i

Figure 4 is a sectional view on an enlarged scale showing the locking`mechanism of the device. v

Figure 5 isa sectional view on the line 5 5 of Figure 1.

Figure 6 is a lon' 'tudinal cross sectional view of a modified orm of the device.

" Figure 7 is a sectional view on an enlarged scale showing the locking mechanism ofthe device.

Figure 8 is a cross sectional. view on the line 8-8 of Figure 7.

Figure 9 is a cross sectional view on the line 9-9 of Figure 7, and

Figure 10 is across line lO--lO of Figure Referring to F igurel, the numeral' 10 indicates the opt/er panel of the door in which the lock is mounted. Numeral 11` indicates sectional view on the I the usual lock platesecured at the inner side of the door; numeral 12 is the edge surface and the door panel i0, there is provided an escutcheon plate of any preferred construction. rl`he handle 15 is provided with a tubular stem 22 which extends into the door and terminates in a portion 23 provided with an enlarged bore 2t which rotatably receives an enlarged end 25 oi a latch operating member generally indicated at 27. 'lhe portion 23 is beaded over the enlarged end 25 at 28 so that the parts 15 and 27 cannot be separated. 'lhe latch operating member 27 further comprises the spindle portion 29 and an-enlarged squared end portion 30 receivable in a cam 3l to operate the latch tongue 32. The end portion 30 is turther rovided with an axial bore, screw threa ed to receive a screw 33, the head of which hears against the inner surface ot the latch mechanism and prevents withdrawal of the members 15 and 27 from the door.

lThe interior rotatable portion of the lock barrel i8 is provided with an. extension 35 which terminates in a rotatable cam 36 illustrated in Figures 2 and 3, the ano'le of rota tion of the cam 36 being limited by a pin and groove construction illustrated in Figure 5, wherein the in 38 mounted in the stem 22 is shown exten ing into an arcuate groove 39 in the extension 35.

Reterrin to Figure ll, it will be observed that the en urged end 25 oil the member 27 is provided in the extremity thereof with a diametrical slot lll), and referring to Figures 2 and 3 it will be seen that on either side of the cam 36, are mounted slidable jaw members t2 and 423 respectively. 'lhese j aw members 42 and d3 are inserted in each end of a diametrical slot t5 provided in the stem 22 and are urged against the cam 36 by a sprin member t7. Referring to Figure l, it wil he observed that each of the jaw members 42 and 4.3 is provided with an extension d8 and i9 respectively, adapted to cooperate with the slot d0 in the member 25 when the cam 36 is rotated to the osition shown in Figure 3 which correspon s to the unlocked condition of the door, that is, that condition of the lookin mechanism in which the latch 32 is operalile by the handle 16.

From a consideration ot this description, it will be observed that when the door is locked, in which case the mechanism assumes the relation illustrated in Fi re 2, the stem 22 may be rotated without ailecting the latch operating spindle 27, and at the same time the extension ot the jaw members 42 and 43 hyond the circumference of the stem 22, will ctively prevent the removal of the stem 22 through the aperture 50 providedl there- 'for in the door panel lo.

ltwill be further observed that when the locking mechanism is in the unlocked relation illustrated in Figure 3, the beaded dange 28 and the screw 33 will prevent removal of y,the loclr handle l5 and latch operating spinresaca? dle 27 from the door and it is no longer necessa'ry to depend on the escutcheon plate 20 to retain these members in the door.

llt will be noted that the jaw operating cam 36 has only two positions, namely, the osition illustrated in Fi re 2 and that il ustrated in'Figure 3, an that these two positions are limited by the length ci the groove 39 illustrated in Figure 5, so that there will 'be no diculty in properl positioning the cam 36 by means of the e 19 to render the handle l5 ehective or ine ective to operate the latch 3l.

ln the form of mechanism illustrated in Figure 6, the construction of the door 'is suhstantially the same as that illustrated in Figure l and conforms to the usual construction for this purpose. lln this case, however, when the door is unloclred, the lock handle 69 is retained in the door by the escutcheon plate 62 which is secured by screws or other usual means to the door panel l0, and the loch handle and the latch operating s indie 65 are not permanently secured to et er.

Referring particularly to igure 6, it will he seen that in the locking mechanism utilised in this form of invention, the lock handle 60 is provided with a tubular extension 66 which entendsl into the door and terminates in a reduced cylindrical portion 67. 'llhe latch operating spindle terminates in an enlarged hollow cylindrical end 69 in which the reduced end 67 et the loch handle 69 is rotatably received. Mounted between the portions 67 and 69 are the spring pressed alls 70 which are mounted in a diametrical here 7l, Figure 10, in the member 67 and are urged by the compression spring 73 into a groove 74 provided in the member 69. 'llhe engagement oi the balls 70 in the groove 7d resiliently retains the members 67 and 69 in properly telescoped relation to each other., From a further inspection of Figure l0, it will be noted that the member 69 is also provided with holes 7 5 which are smaller in diameter than the balls 70 and into which the halls 70 are urged to define certain limiting positions in the rotation of the member 67 relative to the member 69.

Referring particularly to Figure 7, it will be observed; that the member 69 extends beyond the balls 70 and that in the extension there are provided two oppositely disposed slots 78 and 79, for a purpose which will presently appear.

Referring toFigures 6 and 8, it will loe seen that the stem 66 of the handle 69 is provided with an elongated aperture 8l, and that in the aperture 81 two lever members 82 and 83 are pivoted by the pins 8d and 85. Reieri-ing to Figure 7 it will be seen that the lever members 82 and 83 are so tapered that the inwardly exmnding ends thereof may be swung close together, and that on the opposite side of the pins 84 and 85 from this tapered portion, these lever members are provided with shoulders 86 and 87 and stems 88 and 89.

Again referring to Fi re 6, it will be seen that the inner rotata le portion of the lock barrel 90 is provided with an extension 91 which terminates in a cam portion 92 particularly illustrated in Figure 9, and that this extension 91 is further rovided with an axial well or bore 93, within which is received a slidable plunger member 94 having a head 95 adapted to bear against the shoulders 86 and 87, the plunger member 94 being urged outwardly of the bore 93 by a compression spring 96 to normally retain the lever members 82 and 83 in the position shown in Figure 7. f

From an inspection of Figure 9, it will be seen-that the cam portion 92, of the member 91, lies between the stem portions 88 and 89 of the lever members 82 and 83 so that upon rotation of the cam, the stems 88 and 89 may be forced outwardly against the action of the spring 96 to cause the lever members to assume the position illustrated in Figure 6, in which relation of the parts, the door is locked as the inner ends of the lever members do not enga le in the slots 78 and 79 in the member 69. Vlien the cam is rotated to the position illustrated in Figure 9, the lever members assume the position illustrated in Figure 7 in which position the inwardly extending ends thereof extend into the slots 78 and 79 and lock the members 60 and 65 together to rotate as a unit.

From a further inspection of Figure 6, it will be observed that a heavy washer member 98 surrounds the stem 66 of the handle 60. This washer member is secured to the door panel 10 by weldin or brazing or other suitable means, and W ien the lever members 82 and 83 are in the extended position corresponding to locking of the door as illustrated 1n Figure 6, they will engage the washer 98 and effectively prevent the removal of the lock handle from the door.

As explained above, it will be seen that in the form of the invention illustrated in Figure 6, I have also provided a door lock 1n connecting said handle and said spindle for unitary rotation, a leaf spring surrounding said handle for urging said second means into spindle engaging position, and key operated means for moving said second means to render said handle freely rotatable relative tol said spindle. Y

2. In a door lock, the combination with an escutcheon plate of a lock handle and a latch operating spindle telescopically associated against axial separation, means connected to said spindle independent of said escuteheon plate for preventing removal of said handle from the door, spring pressed means for operatively connecting said handle to said spindle for unitary rotation, and key operated means for moving said last named means to render said handle freely rotatable relative to said spindle. 3. In a vehicle door lock, a lock handle and a separate latch operating spinseparation, and provided in their telescopically associated portions with correspondingy slots, a pair of oppositely disposed plungers carried by said handle engageablewith said spindle for locking said spindle to said handle for unitary rotation, a key operated cam rotatable into one or the other of two operative positions to permit said plungers to engage said spindle or to hold said plungers clear of said spindleto permit free rotation -of said handle relative to said spindle, a spring surrounding said handle and said plungers to resiliently urge said plungers into engagement with said spindle, and con- `cave inner ends on said plungers adapted to fit about said cam and assist in retaining said cam in either of its two operating positions. Signed by me at South Bend, Indiana, this 3 day of July, 1931.

PERRY W. SULLIVAN.

which the lock handle is freely rotatable when the door is locked so that the handle will not be broken oli" in an attempt to open the door while the door is locked, and also in which the handle cannot be removed from the door when the door is locked.

Having now fully described my invention, the method of making and using the/same, what l desire to secure by Letters Patent is as follows:

1. ln a vehicle door lock, a lock handle and a separate latch operating spindle telescopically associated against axial separation, means preventing axial movement of said spindle, means carried by said lock handle engageable with said spindle for operatively

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