US1798528A

US1798528A - Locking mechanism

Info

Publication number: US1798528A
Authority: US
Inventors: Burton S Floraday
Original assignee: Dura Co
Current assignee: Dura Co
Priority date: 1929-01-14
Filing date: 1929-01-14
Publication date: 1931-03-31
Anticipated expiration: 1948-03-31

Description

Marh- 31, 193 1. 'a. s. FLORADAY LOCKING MECHANISM Filed Jan.

INVENTOR 6 3 art? SZZara day ATTORNEYS Patented Mar. 31, 1931 UNITED STATES PATENT OFFICE BURTON S. I'LOBADAY, OI TOLEDO, OHIO, ASSIGNOR TO THE DURA COMPANY, OF

* TOLEDO, OHIO, A CORPORATION OF OHIO nocrcma MECHANISM.

. i Application filed January 14, 1928. Serial No. 332,492.

The invention relates to locking mechanisms and refers more'particularly to look ing mechanisms for 'motor vehicle doors adapted to be actuated by either outside or inside handles. One of the objects of the invention is to provide a locking mechanism with means for detachably securing an outside handle thereto soarranged that actuation of an inside handle does not free the outside handle. Anotherobject is to provide securing means movable upon retraction of the bolt of the locking mechanism and adapt;

ed to be held in a position freeing the outside handle upon return of the bolt to extended -position. With these as well as other objects in view, the invention resides in the novel features of construction and combinations and arrangements of parts as more fully hereinafter set forth.

In the drawings Figure 1 is a side elevation of a locking mechanism embodying my invention;

Figure 2 is a view similar to Figure 1, showing a portion of the locking mechanism 15 with the bolt retracted;

Figure 3 is a side elevation opposite to that of Figure 1 with the cover plate broken away;

Figure 4 is a cross section on the line 44 of Figure 1.

As shown in the present instance the lockin mechanism is designed for use in motor vehicle doors and has the case plate 1, which is suitably secured to a door and the locking bolt 2, which is reeiprocable longitudinal- 1y of the case plate and slidably guided by suitable tongues 3 struck out therefrom and the transverse end flange 4 integral therewith. 5 is the outside handle which has the spindle 6 extending transversely through the case plate. This spindle preferably has the polygonal portion 7 fitting within a corre spondingly shaped opening in the roll back 8, which is adapted to engage the transverse shoulder 9 upon the bolt to move the bolt to retracted position upon rotation of the outside handle. 10 is the inside handle the stem 11 of which extends transversely through the case plate and is preferably formed with the polygonal portion 11 for fitting in a cone spondingly shaped opening in the roll back 12, which is adapted to engage the transverse shoulder 13 upon the bolt to move the bolt to retracted position. 14 is a spiral spring secured to the case plate and abutting e transverse shoulder 15 upon the bolt for yieldably forcing the bolt to its extended or operative position.

For the purpose of detachably securing the outside handle to the locking mechanism, I have provided the securing member 16, which is in the nature of a plate and which is longitudinally slidably mounted upon the case plate. As shown, the case plate has the tongues 17 struck out therefrom for engaging the outer side of the locking plate and the longitudinally extending slot 18 for receiving the transverse tongue 19 upon an end of the locking plate. The other end of the locking plate is formed with a longitudinally extending slot having the outer portion 20 of greater width than the inner portion 21. The-inner portion is of a width sufficient to receive the reduced portion 22 of the spindle 6 at the base of the channel 23 in this spindle. 24 is a suitable spring secured to the case plate and abutting the transverse tongue 19 upon the locking plate for normally holding the locking plate in a position for'the reduced inner portion 21 of the slot to receive the reduced portion 22 of the spindle. This locking plate is adapted to be retracted against the effort exerted by the spring 24 by means of the locking bolt 2, this locking bolt having I the transverse shoulder 25 for engaging the transverse tongue 19. It will thus be seen that both the outside and inside handles are adapted to retract the bolt and at the same time to retract the locking plate. However, the movement of the inside handle is limited by means of a suitable tongue 26 struck out from the case plate and adapted to be engagedby the roll back 12 so that the inside handle does not retract the locking plate as far as the outside handle.

As shown in Figure 2, the outside handle has been rotated to retract the bolt and consequently retract the locking plate, at which time .the spindle is located within the enlarged portion 20 of the slot in the locking plate, but the spindle is rotated so that the corners of its polygonal portion overlie the locking plate and the outside handle cannot be removed. However, by holding the locking plate in this position and returning the outside handle to its normal position, at lllt'll time the polygonal portion of the spindle will oeeupy a position such as shown by the dotted lines of Figure 2. the locking plate clears the polygonal portion of the spindle so that it may be withdrawn from the case-plate.

hat l claim as my invention is: I

1. The combination with locking mechanism having a case plate and 'a loekin gbolt, and a handle for moving said bolt to r etracted position. of lllfltlllSfO! detaehably securing said handle to said ease plate in operative relation to said bolt, movable relative to said case plate upon movementof said bolt to a position freeing said handle from said case plate in a predetermined position of said handle.

2. The combination with locking mechanism' having a case plate and a locking bolt, and a handle for moving said bolt to retracted position. of means for detaehably securing said handle to said case plate in operative relation to said bolt. carried by and movable relative to said case plateupon movement of said bolt to a position freeing said handle from said ease plate ina predetermined position of said handle.

3. The combination with locking mechanism having a ease plate and a locking bolt, and a handle for moving said bolt to retracted position. of means for detachably securing said handle to said case plate inoperative relation to said bolt, said means including a member carried by said case plate and adapted to be moved upon retraction of said bolt, said member being adapted to be held stationa 11v relative to said ease plate upon return of said bolt to extended position to free said handle from said case plate.

1. The combination with locking mechanism having a case plate and a locking bolt. and a handle for moving said bolt to retracted position, of means for detachably securing said handle to said case plate in operative relation to said bolt. said means including a member carried by said ease plate and adapted to be moved by said bolt While being retracted, said member being adapted to be held stationary relative to said case plate upon return of said bolt to extended position to free said handle from said case plate.

5. The combination with looking mechanism having a case plate and a locking bolt,

and a handle having a spindle for moving said bolt to retracted position, of means engage- -able with said spindle for detachably securing said handle to said case plate, said means being carried by and being movable relative to said case plate upon retraction of said bolt to a position clearing said spindle and freeing said handle from said case plate in termined position of said handle.

6. The combination with locking mechanism having a case plate and a locking bolt, and outside and inside handles for moving said bolt to retracted position, said outside handle being adapted to retract said bolt to a position beyond that to which said bolt may be retracted by said inside handle, of means for detachably securing said outside handle to said 'ase plate in operative relation to said bolt,.said means being movable relative to said easeplate uponiretraction of said bolt and being adaptedto' be held stationary relative to said case platupon return of said bolt to extended position to free said outside handle from said case plate.

7. The combination with locking mechanism having a case plate and a locking bolt, and outside and inside handles for moving said bolt to retracted position, said outside handle having a spindle and being adapted to retract said bolt to a position beyond that to which said bolt is adapted to be retracted by said inside handle, of means for detachably securing said outside handle to said case plate in' operative relation to said bolt, said means including a plate engageable with said spindle at all times during the actuation of said bolt by said outside handle, said plate being carried by and movable relative to said case plate upon retraction of said bolt and being adapted to be held stationary relative to said case plate upon return of said bolt to extended position to clear said spindle-and free said outsidehandle from said case plate.

In testimony whereof I aflix my signature.

BURTON S. FLORADAY.

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