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Sept» 24, 1946.
Filed, April 30, 1942
2 Sheets-Sheet‘ l
; Sept. v24, 1946;
Filed April 50, 1942‘
2 Sheets-Sheet v 2
.26 2
i’. .1:
Patented Sept. 24, 1946
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.
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
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)
Figure 9 is a sectional view showing the out
side operated door handle and associated door
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;
Figure 12 is an enlarged sectional view of the
door handle
assembly taken
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
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
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;
ment of the bolt, ear 2'5 engaging the ?ange 2'6
pushes the slide 22 rearwardly thereby releasing
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~
bolt plate lZa in its retracted position. The
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
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
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
member and engageable by said latch bolt when
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
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