US1662450A

US1662450A - Vehicle door latch

Info

Publication number: US1662450A
Application number: US61192A
Authority: US
Inventors: Clarence G Anderson
Original assignee: Individual
Current assignee: Individual
Priority date: 1925-10-08
Filing date: 1925-10-08
Publication date: 1928-03-13
Anticipated expiration: 1945-03-13

Description

March 13, 19 28.

C. G. ANDERSON VEHICLE DOOR LATCH Filed 001;. 8. 1925 INVENTOR CGAndem'qn ATTORNEY Patented Mar. 13, 1928.

UNITED STATES vP A- 'rsnir twee,

CLARENCE G. ANDERSON, 0F LOS GELES, CALIFORNIA.

VEHICLE DOOR LATCH.

Application filed October 8, 1925. Serial No. 61,192.

The main object of this invention is to pro vide a latch having various novel characteristics attached thereto. One of the characteristics is the provision for securing the door to which the latch is attached in two positions, one position being that in which the dooris completely closed and sealed in the jamb, the other position being that in which the door is partly opened. 1

Another object is to provide a latch which becomes effective in'two positions, a com pletely closed position, and an open position, and means cooperating with the latch for releasing the sliding bolt of the latch so that the same may be retracted manually.

The above and other objects will become apparent in the description below, in which characters of reference refer to like-named parts in the drawing. V

Referring briefly to the drawing, Figure 1 is a front elevational view of the latch,

which the entire latching means is mounted.

This base plate has a front end wall 11 and a rear end wall 12 between which the coop crating members of the latch are arranged. The base plate is preferably'mounted-in a rectangular recess suitable for its reception formed on a door such as 13 on the inside surface thereof so that the lock may be operated from within a. chamber. A sliding bolt 14 forms part of the latch mechanism and is provided with a rectangular channel 15 and a triangular nose 16 which when in locked position, extends beyond the front end wall 11 of the latch casing and is housed in a similarly shaped keeper 17. A square block 18 is mounted on the face of the base plate 10 and registers in the channel 15, orming a guide for the sliding bolt 14;. Rearward of the sliding bolt, the coiled spring 19 is fixed or positioned betweentthe rear end of the sliding bolt with wliichit contacts'and the rearend wall 12. This coiled spring is preferably formed of a.

substantially rectangular, shape so as to readily fit between the base 10 and the cover plate 20. At the bottom of the sliding bolt, near' the rcarend thereof adjacent to where thecoiled spring'19 con tacts with it, a plurality of teethQl are provided which are engaged by one end of an angular pawl 22, which angular awl is mounted upon a rotatable square shank 23.

Said square shank is rotatably mounted in the base plate 10, extends thruout theentire width of the latch casing, projects somewhat thru the cover plate 20,'and the projecting end 24 has a lever handle 25 secured thereto by which means the pawl is manually r0- tated. An arm 26 is fixedly mounted on the portion 23 of the square shank and normally extends angularly upward when the sliding bolt is in advanced or extended'position, be-

ring adapted to have its endextendin front of a mover pm 27 which is mounted on the side of the slidingbolt 1 1;

ing end of the sliding bolt is adapted to be entered, consists of aflat plate 28, which is mounted upon thesurfaceof the door jainb and has the housing 17 into which the proecting end of the bolt enters integral therewith. The keeper plate '28 cxtends'for the thickness of the door, having on its external edge an ott set ledge 29, which ledge extends toward the door 13 and the end of the keeper plate opposite to this ledge extends beyond the surface of the jamb into the chamber of the room; This extending'end 29 has an opening 30 therein which is of suitable dimensions to receive thenose 16 of the sliding bolt 14 when the latter is in aligned position therewith. A pair of ears 81 are mounted on the outer surface of the ledge 29, and between these ears, a stop lever 32 is pivot- ,ally mounted, said leverhavingan off-sets extension 33 at its free end whoseedge is adaptedto contact with the surface .of the keeper plate and form a shoulder for a sliding bolt releasing means, which latter will be more fully hereinafter described. Thestop The keeper plate, into which theproject ill) lever is pivotally mounted to permit the same to be moved into two positions, an inactive position, in which it assumes the 10" cation shown in Figure 3, and an operative position, in which it assumes the location shown in Figure 4.

Means are provided for securing the sliding bolt in retracted position automatically as it is being retracted manually and comprises a hollow housing 34, mounted on the external side of the base plate 10. \Vithin this housing, a square bar 35 mounted which is pivoted intermediate its ends on a stud 36 fixed in the housing. One end 37 of this pivoted bar extends outwardly from the front open end of the housing 3i, and around this extending end, a resilient member 33 is coiled angular-1y and twisted at a position over the square bar 255, then extending rearwardly in the housing. to the roof 39 with which it contacts, the ends of the resilient member being formed into a pair of legs 40. The far end of the pivoted bar 35 passes thru a recess ll formed in the base plate 10 of the lock and is adapted to normally register in a triangular recess -12 on the sliding bolt when the latter is in retracted position.

The latch is operated from within the chamber and cannot be n'ainipulatcd trom without except thru the operation of a second lever bar l3 which is pivotally mounted on the base plate 10 and has its lower end registering in a triangular recess alt formed in the sliding bolt let, the pivoted lever being normally concealed in some convenient re cess formed in the door 13. W'hen the sliding bolt is to be retracted from the position it is shown in Figure 1, the handle lever is rotated in a clockwise direction, thus mow ing the shank and the lever 26 attached thereto. The lever in being rotated in a clockwise direction, engages the mover pin 27, and as this pin forms an integral part with the sliding bolt 14:, the latter is retracted to the position shown in Figure 1-. As the recess 4-2 formed on the sliding bolt becomes aligned with the rear end of the pivoted bar 35 when the sliding bolt is retracted, said rear end of the pivoted bar 35 is urged into the recess l2 by the flexibility of members 38 and the legs 40, which members lift the front end 37 of the pivoted bar and lower the rear end a corresponding distance, thus retaining the sliding bolt in retracted position, permitting opening or closing of the door as desired. In order to lock the door in partly opened position it is simply necessary to throw or swing the stop lever 32 into the position shown in Figure l, in which the flange 32 lies and contacts with the keeper plate 29 at a position approximatcly half its width. As the door is being swung to its closed position on its hinges, the projecting end 37 of the pivoted bar 37. contacts with the flange as the sliding bolt is nori'nally aligned with the opening 30 in the keeper plate :29. Further pressure on the door 13 causes the end 37 of the pivoted bar to be moved toward the base plate 10, and as the sliding bolt becomes exactly aligned with the opening 30. the rear end of the pivoted bar is completely removed from the recess l2 and permits said sliding bolt to be extended to its projecting position by the spring 19. In order to latch the door 13 in its closed position, in the jamb, the same movement of the sliding bolt: is accomplished by having the end 37 of the pivoted bar engaged on the ledge 29, as illustrated in Figure 8.

1. A latch comprising a casing, a lever retracted sliding bolt, a keeper having a pair of aligned recesses adapted to alternately receive the sliding bolt when the latter is in extended position, said sliding bolt having a triangular recess on one side, a spring be hind said sliding bolt yicldably extending the latter, a bar pivoted intermediate its ends on said latch, one end of said bar engageable in the. recess of the sliding bolt to retain the latter in retracted position, a spring connected to said bar normally urging the latter into engagement in the recess oi the sliding bolt, and means for tilting said bar out of engagement with the sliding bolt.

2. A latch comprising a casing, a lever rctracted sliding bolt, a keeper having a pair of horizontally aligned recesses adapted to receive the sliding bolt when the latter is in extended position, said slidim. bolt having a triangular recess on one side, a spring behind said sliding bolt yieldably extending the latter, a bar pivoted intermediate its ends on said latch, one end of said bar engageable in the recess of the sliding bolt to retain the latter in retracted position, a spring connected to said bar normally urging the latter into engagement in the recess ol? the sliding bolt, a ledge on said keeper adapted to engage one end of the tilted bar and rotate the latter out of engagement in the recess of the sliding bolt to release the latter for extension. and pivoted means on said ledge for limiting the rotation of said door to align the sliding bolt with one of the recesses in the keeper.

In testimony whereof I atlix my signature.

CLARENCE G. ANDERSON.