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Патент USA US3024064

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March 6, 1962
3,024,054
C. L. EADS
PRY LATCH
Filed June 29, 1959
28.*/ 47
6wRm L F.w
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3,924ß5/l
Patented Mar. 6, 1962
2
position of the closure is arranged to seat within the
3,024,054
PRY LATCH
Charles L. Eads, North Hollywood, Calif., assigner to
Adams Rite Manufacturing Company, Glendale, Calif.,
a corporation or California
Filed lune 29, 1959, Ser. No. 823,575
2 Claims. (Cl. 292-126)
channel 13, this channel being mounted so as to open
outwardly and thus form a jamb for the stile 11. In the
usual construction, strips of mohair pile 17 are provided
-for sealing the stile in closed position.
The pry latch has its parts mounted in a casing 13 hav
ing a relatively narrow or thin thickness so that it may be
mounted within the limits of the space between one edge
The present invention relates generally to latches for
of the stile and the edge of the glass panel. For such
closures such as doors, windows, panels and the like; and 10 purpose, the casing is constructed U-shaped with elongate
is more particularly concerned with latches that are pro
`spaced side walls 19 and 2l) which are in parallel relation
vided with means for forcibly prying a sliding closure
and connect to a bridging bottom 21. The outermost
open, when the latch is in unlatched position.
edges of the side walls are curved as indicated by numeral
It is one Object of the present invention to provide a
22, and connect with end edges in each case as indicated
pry latch having an operating handle which may be uti 15 at 23 and 24 which `are also slightly curved, the edge 24
liZed for both opening and closing operations of a clo
being slightly longer than the edge 23. Between the side
sure, and when opening the closure from closed position
walls 19 and 20 there is positioned a lever member 25
will initially act as a pry for breaking the closure seal
having `a bulged lug portion 26 intermediate its ends by
and as 4a lever for initiating movement of the closure.
means of which the lever is rockingly pivoted on a pivot
20
A further object is to provide in a pry latch, a latch
pin 27’ having its ends respectively supported in the side
arrangement in which the latch is so mounted that it may
walls 19 and 20. At its ends, the lever member has pro
be moved to latching position, when the closure is moved
jecting linger portions 28 and 29 which extend inwardly
to a closed position, without moving the actuating handle
towards the ybottom 21 of the casing, the finger portion
of the device.
25 29 being somewhat longer than the linger portion 28.
Another object is to provide a handle operated pry
The lever member is therefore slightly inclined with re
latch device, wherein Vapplication of force to the handle
spect to the bottom 21, and has its outer longitudinal edge
in a door opening direction motivates an associated latch
surface conformed generally with the outer edges 22 of
to its unlatched position faster than the handle is being
the casing, and the outer edge of the end linger portion
moved, and thereafter acts as a pry member ~rfor initiating 30 29 conformed with the casing end edge 24. A looped
opening movement of the closure.
spring 30 has coiled portions Isurrounding the pin 27 on
Still another object is’ to provide a latch and door
each side of the lug 26, this spring acting to normally bias
actuating handle assembly of relatively thin construc
the lever 25 in a direction to move the finger portion 29
tion, which will permit its being mounted within the
to a stop position against the bottom 21, as shown in
limits of the outer side edge of the associated door stile, 35 FIG. 2. This is the normal position of the lever member,
with the latching end of the latch member extending into
and in this position a projecting handle portion 31 extends
`a shielded position in the stile interior.`
above the casing where it is convenient to manually
Further objects of the invention will be brought out
grasp, for operating the door `as will hereinafter be ex
in the following part of the specification, wherein detailed
plained more fully.
description is for the purpose of fully disclosing the in 40
A latch member 32 is swingably supported in the casing
vention without placing limitations thereon.
.
by pivot pin 33' between the ends of the latch member,
Referring to the accompanying drawings, which are for
this pivot pin having its ends respectively supported in
illustrative purposes only:
the spaced side walls 19 and 20’. One end 34 of the latch
FIG. 1 is a fragmentary view showing the pry latch
member has a camming edge 35 which is in engagement
assembly incorporating the present invention as being 45 with an edge portion 36 of the lever member 25. The
applied to the stile of a closure member.
opposite end 37 of the latch member 32 extends through
FIG. 2 is an enlarged fragmentary elevational View,
an opening 38 in the bottom 21, and is provided at its end
having portions of the casing cut away, and other portions
terminus with a hook 39. A spring 40 is arranged to bias
shown in section in order to disclose the operative rela
the latch member to latching position, and to maintain
50 the camming edge 35 in engagement with edge 36 of the
tionship of certain of the parts thereof;
FIG. 3 is a transverse section taken substantially on
line 3_3 of FIG. 2; and
lever member. The pry latch unit as thus described is
mounted in operative position on the stile 11 by means of
mounting screws 41-41 in the bottom 21 of the casing.
FIG. 4 is a vertical section taken substantially on line
4_4 of FIG. 2.
As thus mounted, the end 37 of the latch member extends
Referring now more specifically to the drawings, for A through an opening 42 in the adjacent wall of the stile 11,
illustrative purposes, the pry latch embodying the features
the yopening 42 being in registration with the opening 38
of the present invention is disclosed in FIG. 1, as indi
in the bottom 21 of the casing.
cated generally by the numeral 1l) as being secured to a
With the pry latch assembly thu-s mounted, the end 37
stile 11 of a sliding door or closure structure 12. The
of the latch member is contained within the interior of
60
stile 11 is adapted to seat in a channel frame member 13
the stile 11, being thus shielded and hidden so that there
constituting a part of a frame structure 14 within which
l is no projecting part extending to the exterior of the stile.
the closure is mounted. While for purposes of illustra
Immediately below the end 37, the wall of the stile 11
tion the invention has been described in connection with
opposite the wall containing the opening 42 is provided
a sliding door, it will be appreciated that in its broad con
with an opening 43 through which a keeper 44, secured
cept the invention is not to be so limited, since it may be
to the adjacent surface of the channel 13, is adapted to
enter the interior of the stile 11, when the closure is
like.
moved to closed position. In `such closed position, a
More specifically, the stile 11, FIG. 3, is shown as be
ing `fabricated to form a tubular member which is longi 70 notch 45 in the uppermost end of the keeper i's adapted
to receive the hook 39 of the latch member, thus latch
tudinally recessed as indicated `at 15 to receive an edge of ingly connecting the closure structure 12 against opening
a glass or other panel 1o therein. The stile, in the closed
utilized with window structures, sliding panels and the
3,024,054
4
3
one of said fingers to said stop position when closing the
closure, a latch member in said casing positioned be
tween said lever pivot and said other linger portion, said
latch member being pivoted between its ends for rocking
movement with respect to the frame structure 1‘4. The
upper edge of the keeper has an inclined edge portion 46
over which the hook 39 will ride during closing move
ment of the closure so as to permit entrance of the hook
39 into the notch 45. It will be observed that during this 5 movement to latched and unlatched positions, one end
of said latch member projecting through an opening in
movement of the latch member, the latch member is free
to swing about its pivot Without moving the lever 25 and
said bottom and the other end of said latch member be
its connected handle 31.
ing positioned in the path of movement of and engaged
by said lever during rocking movement thereof in said
Considering now that the closure is in latched closed
position, as shown in FIG. 2, the closure may be un 10 opposite direction when utilizing the handle to Open the
latched and opened by grasping the handle 31 and exert
closure, and which movement actuates said latch to un
ing a pulling force Ithereon in an opening direction. This
latched position, and spring means biasing said latch to
wards latched position and said lever in said one direction.
force will rotate the lever member 25 in a clockwise diret:`
2. A pry latch for a sliding door having a tubular stile
tion about its pivot, such movement acting upon the end
34 of the latch member and rotating the latch member in 15 adapted in closed position of the door to abut a fixed
frame member and receive through an opening therein a
a clockwise direction which releases the latch with respect
keeper mounted on the frame member, said pry latch
to the keeper 44. During this action, it will be observed
comprising: a U-shaped casing having elongate spaced
that due to the length of the lever arms, the latch mem
ber will rotate at a faster speed than that of the lever 25 20 parallel side walls extending from a bottom bridging por
tion adapted to be secured to an inner surface of said
so that the latch will be released in the initial movement
of the handle 31.
stile, a lever member positioned between lsaid side walls
and supported by a pivot between its ends thereon for
As `additional force is applied to the handle 31, the
rocking movement in a plane parallel to the plane of
finger portion 28 of the lever will be moved endwise
through registered openings 47 and 48 and engage the 25 movement of the door, said lever at its opposite ends
adjacent edge face of the keeper 44. At this point of the
respectively having iinger portions positioned on opposite
operation, the lever becomes a pry member having a
mechanical advantage of the order of 2.5 to 1 for break
sides of said pivot extending towards the said bottom,
one of said linger portions being movable into engage
ing the closure seal and initiating opening movement
ment with the bottom at a stop position limiting the rock
thereof. In this respect, the device is so designed that the 30 ing movement of the lever in one direction, and the other
of said iingers being movable to a pry position projecting
opening breaking pressure required to be exerted on the
handle will approximate that required to directly move
through registered openings in said bottom and said stile,
the door after the seal has been broken.
From the above description, it is believed that it will
be apparent that the designated objects have been accom
integrally formed with said lever for opening and closing
said door, said handle extending substantially vertically
when the lever is rocked in an opposite direction, a handle
plished.
beyond said casing in spaced relation alongside said tubu
lar stile and being movable to actuate said one of said
Various modifications may suggest themselves to those
fingers to said stop position when using the handle to
skilled in the lart without departing from the spirit of my
invention, and, hence, I -do not wish to be restricted to 40 close the door, a latch member in said casing pivoted
between its ends for rocking movement to latched and
the specific form shown or uses mentioned, except to the
. unlatched positions, one end of said latch member pro
extent indicated in the appended claims.
jecting through registered openings in said bottom and
I claim:
said stile and the other end of said latch member being
1. A pry latch for a relatively movable closure, com
positioned in the path of movement of and engaged by
allel side walls extending from a bottom bridging portion, 45 said lever lying between its pivot and said other finger
portion during rocking movement of the lever in said
a lever member positioned between said side walls and
opposite direction when utilizing the handle to open the
supported by a pivot between its ends thereon for rocking
prising: a U-shaped casing having elongate spaced par
movement, said lever having finger portions concealed by
door, and which movement actuates said latch to un
said casing positioned on opposite sides of said pivot and 50 latched position, and spring means biasing said latch to
ward latched position and said lever in said one direction.
extending towards said bottom, one of said finger por
tions being movable into engagement with the bottom at
References Cited in the tile of this patent
a stop position limiting the rocking movement of the lever
UNITED STATES PATENTS
in one direction, and the other of said ñnger portions
being movable to ya pry position projecting through an 55 1,097,155
Adams ______________ __ May 19, 1914
opening in said bottom, when the lever is rocked in an
2,655,395
Groeger ______________ __ Oct. 13, 1953
opposite direction, a handle for opening and `closing the
FOREIGN PATENTS
closure, said handle being integral with said lever and
extending beyond said casing, and acting to move said
212,492
Germany _____________ __ Aug. 4, 1909
60
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