US1865581A

US1865581A - Combined door latch and kick-out assembly

Info

Publication number: US1865581A
Application number: US333934A
Authority: US
Inventors: Miller Dorr
Original assignee: Dura Co
Current assignee: Dura Co
Priority date: 1929-01-21
Filing date: 1929-01-21
Publication date: 1932-07-05
Anticipated expiration: 1949-07-05

Description

July 5, 1932. D. MILLER COMBINED DOOR LATCH AND KICK-QUT ASSEMBLY Filed Jan. 21, 1929 3sh ets-sheet 1 v INVENTOR Do rr Ni 2 2 er ATTORNEYS July 5, 1932. D. MILLER COMBINED DOOR LATCH AND KICK-OUT ASSEMBLY Filed Jan. 21, 1929 3 Sheets-Sheet 2 meek hi MINA H! Y! INVENTOR par)" IVZ'ZZ! 2' ATTORNEY-Y July 5, 1932.

D. MILLER 1,865,581

COMBINED DOOR LATCH AND KICK-OUT ASSEMBLY I 3 Sheets-Shae; 3

Filed Jan. 21, 1929 ATTORN EYS 1 Patented Jul 5, 1932 UNITED STATES-PATENT OFFICE DORR MILLER, OF DETROIT, MICHIGAN, ASSIGNOR TO THE DURA COMPANY, OF TOLEDO,

OHIO, A CORPORATION OF OHIO COMBINED DOOR LATCH AND KICK-OUT ASSEMBLY Application filed January 21, 1929. Serial No. 333,934.

This invention relates generally to com- 1 bined door latch and kickout mechanism and consists of certain novel features of'construction, combinations and arrangements of parts that will be hereinafter more fully'described of the means aforesaid for directing the latch bolt and door carrying the same to open position.

Another object is to provide an operating cambracket that cooperates with the latch case plate to support and enclose the door latch -o'perating cam and that has means for guiding a suitable bolt for dogging the door latch bolt operating cam.

A further object is to provide a strong and durable latch mechanism that is simple in construction and that can be manufactured and installed at a comparatively low cost.

In the accompanying drawings,

Figure 1 is a fragmentary elevationof a door and door jamb with latch mechanism embodying my invention applied thereto;

Figure 2 is a perspectiveview of the latch mechanism;

Figure 3 is an enlarged fragmentary elevation of the latch mechanism;

Figure 4 is an end elevation of the construction shown in Figure 3;"

Figure 5 is a top plan view of the construction shown in Figure 3;

Figure 6 is a fragmentary sectional view taken on the line 66 of Figure 1;"

Figure 7 is a detail view of the latch 'bolt,

1 lever shaft and extension;

Figure 8 is a sectional view taken on the line 88 of'Figure 4;

Figure 9 is a detail View of the operating cam Figure 10 is a detail view of the dogging bolt;

Figure 11 is a fragmentary elevation of a slightly modified form of construction;

Figure 12 is a fragmentary sectional view of theconstruction shown in Fig. 11;

Figure 13 is a view similar to Fig. 12 but showing another modification;

Figure 14 is a fragmentary sectional View of thewconstruction shown in Figure 13.

Referring now to the drawings, 1 is a swinging door of a motor vehicle and 2 is a stationary jamb therefor. 3 is a latch case plate secured to the inner side of the door 1 adjacent to the free edge thereof and having a lateral flange 4 at one edge secured to the said free edge of the door. 5 is a latch bolt bracket of U-configuration having an edge engagement with the case plate 3 adjacent 'to the lateral flange 4, 6 is an operating cam bracket of channel configuration opening to- Ward the case plate 3 adjacent to the bracket 5 and having the side walls 7 and 8 of the channel bearing against the case plate 3 and disposed at substantially right angles to the lateral flange 4.- 9 is a latch shaft journaled in the

side walls

10 and 11 of the U-shaped bracket 5 and provided at its rear-end with a tubular sleeve extension 12 that is rigid with the shaft 9 and that is cut away as shown to provide a longitudinally curved cam edge 13 and a pair of straight substan tially

parallel edges

14 and 15. 16 is a latch lever non-rotatably sleeved on the shaft 9 at the forward end thereof and disposed be-' tween and substantially parallel to the lateral flange 4 andside Wall 11 of the

bracket

5, 17 is a latch pin or bolt projectinglaterally from the lever 16 at the free end thereof and extending through and movable in an areaate slot 18 in the lateralflange 4, 19 is a coil spring sleeved upon the shaft 9 between the

side walls

10 and 11 of the bracket 5 and having'its opposite ends connected to the base 20 of the bracket .5 and to the shaft 9 whereby the latch pin 17 will always be urged by the spring 19. toward the lowerend of the

slot

18, and 21 is a latch plate or keeper attached to Preferably the keeper 21 has an inclinedportion 24 to direct the latch pin 17 upwardly into the forward recess 22, and the rear wall 25 of the latter is also inclined to guide the latch pin 17 into the second recess 23. Thus when the door is partially closed the pin 17 will be received in the first recess 22 and when fully closed will be received in the second recess 23. It will also be noted that the rear wall 26 of the second recess 23 is straight and ina vertical plane for a portion of its length, preferably from a point adjacent the base of a recess to a point slightly above the upper edge of the forward wall thereof, and thencurves upwardly and forwardly so that it serves as a cam or kickout surface to urge the latch pin 17 outwardly as it is raised in the arcuate slot 18. Thusthe door 1 carrying the latch pin 17 will be urged or moved outwardly to open position away from the jamb 2 when the latch pin 17 1S moved upwardly along the saidupwardly and outwardly curved cam surface 26.

In the present instance the latch pin 17 may be actuated against the tension of the spring 19 from the outer side of the door by means of an operating cam 30 and a connecting cam 31, or from the inside of the door by means of remote control mechanism including the

pivoted levers

32, 33 and connecting link 34. As shown, the operating cam 30 is located in the channel of the bracket 6 and has a hub 35 journaled in the case plate 3 and base of the channel bracket 6 and non-rotatably receiving the shank 37 of a suitable outside operating handle 38. The connecting cam 31 ispivotally mounted between the bracket side wall 11 and the lateral flange 4 on a pin 40 projecting laterally from the bracket wall 11 and has an arm 41 that is normally held by a shoulder 42 of the spring urged latch lever 16 against a shoulder 43 of the operating cam 30 so that when the latter is actuated by the handle 38 the connecting cam 31 will be moved by the operating cam 30 and will thereby cause the latch lever 16 to raise the latch pin 17 in the arcuate slot 18. Preferably the lever 32 is pivoted at one end to an offset portion of the case plate 3 and is provided at substantially diametrically opposite points of its pivot with laterally projecting pins or lugs '51 and 52, one being short and normally engaging the short straight edge 15 of the shaft extension 12, and the other being longer -and normally engaging the cam edge 13 of the said extension. As shown, the opposite free end of the lever 32 is pivotally connected to the forward end of the link 34 which in turn is pivotally connected at its rear end to the free end of the lever 33. Preferably this lever 33 is non-rotatably secured to a stud shaft journaled in a boxlike casing 56 on the inner side of the door and is adapted to be actuated by a suitable operating handle 57 rigid with the inner free end of the stud shaft 55. If desired a spring 58 having a portion coiled about the'shaft 55 and having diverging arms 59 and 60 respectively engaging an edge of the lever and a wall 61 of the casing 56 may be used to return the remote control mechanism just described to and normally hold the same in forward neutral position. When the handle 57 is operated to retract the latch pin 17 from the keeper,.the forward lever 32 will be moved about its pivot by the lever 33 and link 34 and will cause the

pins

51 and 52 engaging the

edges

13 and 15 of the extension 12 to rotate the latter and shaft 9 and thereby cause the lever 16 to raise the latch pin 17 in the arcuate slot 18. However. when this is accomplished theoutside bolt retracting means including the

cams

30 and 31 will not be disturbed as the shoulder 42 of the lever 16 will be raised free from the arm 41 of the connecting cam 31. Likewise the outside operating means for the latch bolt may be 0perated without disturbing the inside latch bolt operating means, as the

edges

13 and 15 of the extension 12 will be moved from the

pins

51 and 52 and the edge 14 will be moved against the end of the pin 52 when the shaft-9 is rotated from the outside by the

cams

30 and 31. Thus the outside and inside bolt operating means are independently operable.

With constructions of this type it is desirable to have some means operable from the inside of the Vehicle for dogging or rendering the outside operating means inoperative for retracting the latch b'olt when the door is closed. In the present instance this is accomplished by a bolt 60 that is slidably mounted on the case plate 3 between inturned

lugs

61 and 62 of the bracket 6 and that is provided at its forward end with a substantially rectangular tongue 63 that is engageable in a correspondingly shaped recess 64 in the operating cam 30 to prevent rotation thereof by the handle 38 and shank 37. Preferably the bolt 60 is operated by a stem 66 projecting laterally therefrom.

In Figures 11 and 12 I have shown a slight modification in which the remote control mechanism upon the inner side of the door is rigid with the latch shaft 9 and comprises a relatively long shaft 70 and an operating handle 71. As shown the shaft 70 is rigid with and constitutes a rearward extension of the shaft 9, while the handle 71 is disposed at substantially right angles to and has a hub 72 rigidly mounted on the shaft 70 at the rear end thereof. Preferably, a bracket 73 is secured to theinner side of the door and has a lateral flange 74 sleeved upon and constituting a support for the shaft 70 adjacent to the handle 71. Thus with this construction the shaft 7 0 is enegaged directly by the handle 71 and may be rotated thereby to cause the shaft 9 to actuate the latch bolt 17. Due to .the arrangement of the latch shaft 9, lever 16 and connecting cam 31 such movement of the latch shaft 9, lever 16 and bolt 17 by the remote control shaft 70 and handle 71 will not.

move or effect the outside bolt actuating means, however, when the latch lever 16, shaft 9, andbolt 17 is moved by the connecting cam 31 from the outer side of the door, the inside remote ,cont-rol mechanism comprising the shaft 70 and handle 71 will be simultaneously actuated therewith due to the a rigid connection between the

shafts

70 and 9.

In Figures 13 and 14 I have shown another modification in which the operating handle 80 is similar to the handle 71 but is movable relative to the shaft 7 0. As shown the hub 81 of the handle 80 is sleeved upon the shaft and is provided at one end with a segmental recess 82 that receives a pin 83 .pro

jecting laterally from the shaft 70 normally one end 84 of the recess 82 in the hub 81 abuts the pin 83 so that the

shafts

70 and 9 may be rotated by the handle 80. To actuate the latch bolt, however, when the latch lever 16,

bolt 17, and shaft 9 are moved by the connecting cam 31 from the outer side of the door, the shaft 70 will be rotated by the shaft 9 as in Figures 12 and 13, but in this instance the handle will not be moved due to the slot and pin connection between the hub 81 and shaft 70.

While it is believed that from the foregoing description, the nature and advantages of the invention will be readily apparent, I

desire to have it understood that I do not limit myself to what is herein shown and described and that such changes may be resorted to when desired as fall within the scope of what is claimed.

What I claim as my invention is:

1. In a latch mechanism, a latch bolt-assembly including a pivotally mounted member, a normally projecting latch bolt carried by said member, a rotary part connected to said member, and means for retracting said bolt including two independently operable means engageable respectively with said member and part.

2. In a latch mechanism, a latch bolt assembly including a latch bolt, and a rotary shaft, and remote control mechanism forlever engageable with said shaft.

ing means for the latch bolt including independently operable parts separate from the bolt and associated with said shaft and lever respectively.

4. In a latch mechanism, the combination with a case plate, a latch bolt bracket carried by said case plate, a rotary shaft journaled in said bracket, a lever carried by said shaft, and a latch bolt carried by said lever, of actuating'means for said latch bolt including a rotary cam on the case plate operatively associated with said lever.

5. In a door latch mechanism, a movable door latch bolt, operating means for said bolt including a pivotally mounted member having lateral projections, and a connection between said bolt and member including a rotary part having portions extending between and adapted to be engaged by said lateral pro ections.

6. In a door latch mechanism, a movable door latch bolt, operating means for said bolt,

including a pivotally mounted member having a lateral projection, and connection between said bolt and member including a rotary part substantially parallel to said pivotally mounted member and having a portion adapted to be engaged by said lateral projection.

7. In a door latch mechanism, a latch bolt having a rotary shaft, and actuating means for said bolt including a pivotally mounted 8. In a door latch mechanism, a latch bolt having a rotary shaft provided with an extension having spaced longitudinal edge por-' tions, and actuating means for said bolt including a pivotally mounted member having PIOJGCtlOHS en gageable with the edge portions v aforesaid of said rotary shaft,

9. In a door latch mechanlsm including a latch bolt having a'rotary shaft provided with a rearward extension having a straight edge and a longitudinally curved edge, and actuating means for the bolt including a pivotally -mounted lever having lateral projections normally engaging the straight edge and the curved edge aforesaid of said extension.

10. In a doorlatch mechanism, a pivotally mounted part having spaced lateral projections, and'a latch bolt provided with a shaft having portions extending between and actuable by the lateral projections aforesaid.

11. In a door latch mechanism, the combination with a case plate, ofan-operating main bracket on said case plate and having spaced inturned lugs, a latch bolt carried by the case plate, actuating means for said bolt including a rotary part on the case plate and having a recess in one side thereof, and dogging means for said actuating means including a v bolt slidable on the case plate between the inturned lugs of said bracket and havinga projection engageable in the recess in sald rotary part.

12. In a door latch mechanism, the combination with a case plate having a lateral flange at the forward edge thereof, of a latch bolt bracket on the case plate, a latch bolt having a rotary shaft carried by the first mentioned bracket, and actuating means for' said latch bolt including. cooperating parts substantially parallel to said case plate and lateral flange respectively.

13. In a latch mechanism, the combination with a case plate having a lateral flange at means for said latch bolt including a rotary cam carried by a side of said bracket-and engageable with said lever, and a rotary part onthe case plate engageable with said cam.

14. In a door latch mechanism, a latch bolt having a. rotary shaft provided with an extension having substantially parallel straight edges and a longitudinally curved edge, and

actuating means for said bolt including a.

lever having lateral projections engag'eable with the longitudinally curved edge and one of said straight edges, said straight edges and curved edge being so arranged that rotation of the shaft and extension by any means other than said lever will cause the longitudinally curved edge and the straight edge aforesaid to be moved away from said lateral projections thereby leaving said projections and lever motionless and causing the other of said straight edges to move toward an end of'one of said projections.

15. A door latch bolt keeper having a re-,.

cess for receiving a latch bolt, one edge of said recess serving as a kickout for directing said latch bolt away from said keeper when the said bolt is moved from saldrecess.

'16. In a door latch mechanism, a latch bolt adapted to swing in a plane parallel with the free edge of a door, and a latch,

bolt keeper attachable to the free edge of a door jamb and having a recess for receiving the latch bolt aforesaid, one edge of said recess being a cam for imparting to the latch bolt an outward movement'that will cause the door carrying said latch bolt to be thrust outwardly with respect to said j amb;

17. In a latch mechanism, a rotary shaft, a. lever carried by said shaft, a latch bolt carried by said lever, and actuating means for said latch'bolt including a rotary cam operatively associated with said lever.

18. In a latch mechanism, a rotary shaft a lever actuable by said shaft, a latch bolt carried by said lever, and actuating means for said latch bolt including independently operable ,members engageable respectively with said shaftand lever.

19; In a door latch, a swinging lever, a latch bolt carried by said lever, a pivotally mounted member having a lateral projection, and a shaft substantially parallel to said member and adapted to be engaged by said lateral projection, and operatively connected to said lever.

20. In a door latch, a lever, a latch bolt actuable bysaid" lever, and operating means for the lever including a pivotally mounted member having a lateral projection, and a rtary member .operatively connected to said lever and having'aportion extending at substantially right angles to and engageable by the lateral projection.

21. In a door latch, a rotary shaft, alever actuable by the shaft, a latch bolt actuable by the lever, remote control mechanism for turning the shaft, and means independent of the remote control mechanism foractuating the bolt including a pivotally mounted member engageable with the lever.

22. In a door latch, a rotary shaft, a lever connected to said shaft, a latch bolt connected to said lever, a rollback, a connection between said rollback and lever including a, pivotal- 1y mounted member, and means for rendering said pivotally mounted member inoperative including means for holdingthe rollback against movement. 23. A door latch bolt keeper comprising a plate having a recess. for receiving a latch bolt, one'edge of said recess being curved and serving as a kick-out for directing said latch bolt away from said keeper when the said bolt is m'oved f rom said recess.

24. A door latch bolt keeper having a recess for receiving a latch bolt having an upwardly opening recess fofreceiving a latch bolt, one edge of said recess being curved forwardly over the upwardly opening recess and servingv as a kick-out for directing'said latch bolt away from said keeper when the said bolt ismoved from said recess. 1

25. A door latch bolt keeper having tw upwardly opening recesses arranged one in rear of the other and adapted to successively receive a latch bolt, the rear edge of the rear recess being curved forwardly over said rear recess to a point substantially in vertical alignment with the rear wallof the forward recess and serving as a kick-out for