Sept» 24, 1946. H. w. RIGHTMYER ' VEHICLE DOOR ' . 2,407,99 LATCH . Filed, April 30, 1942 ‘ 2 Sheets-Sheet‘ l INVENTOR ATTORNEY ; Sept. v24, 1946; H. w. RIGHTMYER 2,407,999 ' ‘VEHICLE DOOR LATCH Filed April 50, 1942‘ 2 Sheets-Sheet v 2 Lim13:K. .26 2 62 4 6i 4 I , i’. .1: __ 2 ‘2. Hagen INVENTOR A‘ITORNEY ' Patented Sept. 24, 1946 2,407,999 UNITED STATES PATENT ‘OFFICE 2,407,999 VEHICLE DOOR LATCH Holden W. Rightmyer, Toledo, Ohio, assignor to The American Swiss Company, Toledo, Ohio, a corporation of Ohio Application April 30, 1942, ‘Serial No. 441,108 3 Claims. 1 This invention relates to vehicle door latches but more particularly to latches for automobile doors and an object is to improve the action of latches of this character to enable the door to be closed more easily. Another object is to produce a door latch of the sliding bolt type in which .the'latch bolt is retained in retracted position substantially until the .door is in closed position, thereby ‘obviating the action usually necessary in latches of this ‘character in which in the slamming of the .door, the latch bolt is moved in a retracting direction during its movement over the keeper. A further object is to produce a latch of the above character with which is associated the dovetail structure, the releasing element for the sliding latch bolt being associated with one of the dovetail members and operatively engaging the other dovetail member for releasing the latch bolt. . A still further object is to produce a new and improved door handle mechanism. in which the handle occupies a minimum amount of space, is free from dangerous outwardly projecting parts and operates in a simple manner to retract the latch bolt by movement of the handle outwardly (Cl. 292—335) 2 Figure 9 is a sectional view showing the out side operated door handle and associated door structure; Figure 10 is an enlarged sectional View of the door handle assembly; Figure 11 is an elevation of the door handle assembly as viewed ‘from the outside of the door; and Figure 12 is an enlarged sectional view of the door handle assembly taken approximately through the central portion. The illustrated embodiment of the invention comprises‘ a vehicle door latch having a case plate l0, one edge portion of which is bent upwardly. to provide a ?ange or selvage plate ll. Slidable over the ‘case plate it is a bolt plate [2 to which is riveted a bolt nose l3, .the latter sliding through an opening in the selvage plate H to and from latching position. A spiral spring M has one end ‘anchored to the case plate It) and its opposite end engages the rear face of the bolt nose l3 for normally urging the latter to latching position. At the rear end of the bolt plate 12 is a down turned ?ange hi’ which is adapted to engage a rubber bumper 85 carried by the case plate there away from the door. ‘by to cushion the latching movement of the'bolt For purposes of illustration but vnot of limita tion, embodiments of the invention are shown in the accompanying drawings in which Figure 1 is a side elevation of the door latch From the outside of the door, the latch bolt is retracted ‘by a roll back l?lwhich in this in mechanism and showing also the inside operated remote control structure; it being noted that the cover plate for the outside operated dogging mechanism is removed, legs therefore being shown in section; Figure 2 is a front edge elevation partly in section of the latch mechanism shown in Fig plate. stance is of a two-part or scissors cam construc tion, a spring 17‘ urging these parts relative to each other in order to snugly grip the operating spindle which ?ts into the square hole I8. The scissors cam construction is Well-known to those skilled in this art and since it forms no part of the present invention, detail description and illustration is not considered necessary. The latch bolt is retracted from the inside of the ure 1; door by a remote control unit designated gen Figure 3 is a transverse sectional view of a 40 erally at lathe same having an actuating arm portion of the latch mechanism showing the same in relation to the dovetail keeper, some parts being removed for the ‘sake of clarity; Figure 4 is a perspective view of the latch bolt catch lever; Ell to which is pivoted a link .24. The forward end of the link: 2i is pivoted. to a slide 22 which has an elongate slot 23 through which extends a rivet 24. At the forward end of the slide 22 is an extension 25 which when the slide is moved forwardly relative to the bolt plate l2, the same may be disposed in blocking relation to the out Figure 6 is a fragmentary elevation somewhat side operated roll back cam l5 thereby blocking diagrammatic of an alternate form of latch the bolt retracting movement of the roll back. mechanism in which the dovetail structure is 50 Projecting from the upper edge of the slide omitted; 22 is a flange 26 which is adapted to abut against Figure 7 is a front edge view of the latch an ear ,2’! struck outwardly from the bolt plate shown in Figure 6; l2. Thus when the slide 22 is moved forwardly Figure 8 is a perspective view of the catch lever to dog the roll back. I6, the flange 26 abuts employed in the latch shown in Figures 6 and '7; .55 against the ear 2'! so that upon retracting move Figure 5 is an elevational view of the female dovetail keeper structure; 2,407,999 3 ment of the bolt, ear 2'5 engaging the ?ange 2'6 pushes the slide 22 rearwardly thereby releasing 4 gages in abutment on the door jam for rocking the arm to release the bolt nose I311 as above de scribed. As above described, the catch lever 3ia the outside operated roll back 56. The coopera also has an arm 35a which is adapted to hold tion of the ear 2‘! and ?ange 2s provides slam~ the bolt plate lZa in its retracted position. The 5 unlocking. catch lever 3la is slightly different in form from Mounted on an extension 28 of the case plate the catch lever 3| above described but in gen I0 is a vertically movable slide 28 which may be eral the structure and operation are the same. It actuated by a cam 30. The cam 30 may be asso will be observed that the selvage plate has an ciated with a key operated look so that by inser arcuately shaped slot 39a to afford the release tion of the key, the cam 30 may be turned in one arm 38a the desired movement. , direction or the other. By upward sliding of the ‘In'Figure 9, 5i’! designates the outside metal dogging slide 29, the outside operated roll baclr~ panel of an automobile door which is formed I 6 is blocked against movement. l ‘ with a recess 5!. . The outside door handle 52 is Pivoted to the inner side of the selvage plate curved with the free end abutting against an II and disposed in a plane at substantially right embossed knob 53 adjacent the recess 5|. In angles to the plane of movement of the bolt plate this manner the handle is brought close to the I2 is a catch lever 3!. The catch lever 3i is piv side wall of the door thereby removing any dan otally mounted upon a rivet 32 and has an ex gerousprojections and the recess 5! enables the tension 33 which is adapted to abut against the case plate IQ for limiting swinging movement 20 handle 52 to be conveniently grasped. The handle 52 is provided with an enlarged end portion 54 in one direction. A leg 34 depends from the lever 3| and has an inwardly bent arm 55 disposed at ‘ which is mounted on a pivot pin 55. As shown in Figure 12, the handle 54 ?ts within a casing approximately right angles to the body of the 56 and a sleeved escutcheon 5i’ is adapted to be lever 3!. A spiral spring 36 has one end an chored to the case plate It) and the opposite end 25 fastened to the door structure. The portion 58 of the handle which projects beyond the pivot pin engages in a notch portion 3'! of the'catrch lever 3i and urges the catch lever 3 [in a counterclock 55 is somewhat reduced and engages with a cam arm 59 which ?ts in an extension 69 of the cas wise direction (Figure 1), thereby urging the arm ing 56. The cam. arm 59 has a hub 6! which is 35 toward the case plate It) and in this manner it will be manifest that when the bolt plate I2 30 provided with a squared opening to receive the spindle G2. The spindle 62 may engage at its is retracted a sufficient distance to move the bolt opposite‘end in the outside operated roll back, nose l3 away from its keeper, the free end of the’ arm 35 snaps into place and serves as a stop to block latching movement of the bolt plate. In this manner the bolt plate I2 is retained in its . retracted position with the bolt nose is out of latching relation to its keeper. Also integral with the catch lever 3! is a re leasing arm 33 which extends at substantially right angles to the body of the lever 35 in a direc tion opposite to that of the arm 35. The arm 38 projects through an aperture 39 in the selvage plate II and is disposed inside of the male dove tail member 43 which is rigid with and projects outwardly from the outer side of the selvage plate 45 I I. The dovetail member 40 is open on the inside and has tapered side walls and as indicated on Figure 2, the releasing arm 38 is positioned adja— as for example, by engaging the in the squared opening E8 of the roll backrld (Figure l). Formed in the extension‘ iii? is a stop 63 against which a. portion of'the end 58 of the handleis adapted to abut, thereby to limit the rocking movement of the handle 52 in one direction. The handle 52 is normally retained in the position shown in Figure 9 by a spring 56 which choircles the pivot pin 55 and is disposed within an . apertured portion 95 of the enlarged portion 54 r of the handle, one end of the spring‘ engaging the escutcheon member 5‘! and the opposite end bearing against a portion of the handle. Itwill be obvious that upon pulling outwardly on, the handle 52, the spindle 62 is rotated therebyto actuate the roll back for‘ retracting the latch bolt. cent one end of the dovetail member 4%} so that when the door on which the above described 50 It is to be understood that numerous changes latching mechanism is mounted, is moved to closed position, the releasing arm 38 of the catch in details of construction, arrangement 'and op eration may be e?ected without departing from lever, 3i abuts against the shoulder 4! of the fe the spirit of the invention especially as de?ned male dovetail member. 42. Opposite sides of the in the appended claims. . member 42 are correspondingly tapered to receive What I claim is: 1. In a device of the class described, an auto-7 the male dovetail pair 40, a spring actuated shoe 43 in the dovetail part 42 being spring urged to mobile door latch having a case plate, a selvage bind the parts together. As shown, the member plate at one edge' of said case plate, a spring tensioned latch bolt slidable over said case plate 43 slides on a pin 44 and is under yielding pres sure from a spring 45 which encircles the pin 44. Forming part of the dovetail s2 is a keeper 46 having bolt engaging ledges 41 and 48, the ledge 41 providing the usual safety stop. From the above description, it will be apparent , that the latch bolt I3 is released by theqcatch lever 31 substantially» when the male dovetail member 40 bottoms upon the female member all. At substantially that time the bolt nose i3 being released by the arm 35, snaps abruptly to latch ing position as indicated by the broken lines on Figure 5. - The form shown on Figures 6 to Sis similar to that above described except that the dovetail parts are omitted. In this form the catch lever 31a. has an integral releasing arm 38awhich en and projectable through said selvage plate when in latching position, a spring tensioncd catch lever pivotally mounted on the inner side of said selvage plate and adapted to block movement of said latch‘ bolt when in retracted position, and hold sameffrorn movement to latching position, a releasing arm on said catch lever projecting through said selvage plate, a male dovetail mem her. on the outer side of said selvage plate into - the inside of which said releasing arm extends, a female dovetail member with which said male dovetail member cooperates, an abutment on said female dovetail member ehgageable by said re leasing arm for rocking said catch lever thereby to release said latch bolt-,ikeeper means forr‘said latch ‘bolt associated with said female dovetail 5 2,407,999 member and engageable by said latch bolt when 6 female dovetail member a substantial distance thereby to rock said catch lever to release said the same is released by said catch lever. 2. In a device of the class described, an auto latch’ bolt, and a keeper associated with said mobile door latch having a case plate provided female dovetail member and engageable by said with a selvage plate at one edge thereof, apspring latch bolt upon release thereof. tensioned latch bolt slidable over said case plate 3. In a device of the class described, an auto and projectable through said selvage plate when mobile door latch having a case plate, a selvage in latching position, a catch lever pivoted to the plate at one edge of said case plate, a spring inner side of said selvage plate and disposed at tensioncd latch bolt slidable over said case plate one side of said latch bolt, said catch lever being 10 and projectable through said selvage plate when pivoted on an axis substantially parallel to the in latching position, a spring tensioned catch plane of movement of said latch bolt, an arm on member movably mounted on the inner side of said catch lever, a stop» on said latch bolt en said selvage plate and adapted to block move gageable by said arm when said latch‘ bolt is in ment of said latch bolt when the latter is moved retracted position thereby to hold said latch bolt 15 to its retracted position and retain same from retracted, a releasing arm on said catch lever movement to latching position, a releasing ele projecting at right angles therefrom through‘ ment on said catch member projecting through said selvage plate, a male dovetail member on said selvage plate, and a male dovetail member the outer side of said selvage plate in the region on the outer side of said selvage plate into the of said second arm, said male dovetail member 20 inside of which said releasing element extends, being hollow and said second arm extending whereby upon slamming the door said releasing therethrough, a female dovetail member for re element is adapted to cooperate with the female ceiving said male dovetail member, a, stop on dovetail part which receives the male dovetail said female dovetail member for receiving said part for actuating the catch member sufficiently male dovetail member, a stop on said female 25 to release the latch bolt to allow the latter to dovetail member engageable by said second arm move to keeper-engaging position. when said male dovetail member has entered said HOLDEN W. RIGHTMYER.