U.S. patent number 3,707,862 [Application Number 05/116,969] was granted by the patent office on 1973-01-02 for key-controlled door lock.
This patent grant is currently assigned to The Eastman Company. Invention is credited to John V. Pastva, Jr..
United States Patent |
3,707,862 |
Pastva, Jr. |
January 2, 1973 |
**Please see images for:
( Certificate of Correction ) ** |
KEY-CONTROLLED DOOR LOCK
Abstract
A paddle-type, key-controlled flush-mounted, spring-biased bolt
lock for swinging doors made primarily of metal stampings and
having the key control in the shallower part of a two level recess
and the handle in the deeper part of the recess with the
non-pivoted end of the handle adjacent to the key control. The key
control includes a cam selectively movable into and out of the path
of a member engageable with the bolt.
Inventors: |
Pastva, Jr.; John V. (Parma
Heights, OH) |
Assignee: |
The Eastman Company (Cleveland,
OH)
|
Family
ID: |
22370318 |
Appl.
No.: |
05/116,969 |
Filed: |
February 19, 1971 |
Current U.S.
Class: |
70/150;
292/DIG.31; 292/173 |
Current CPC
Class: |
E05C
1/145 (20130101); Y10S 292/31 (20130101); Y10T
292/0994 (20150401); Y10T 70/55 (20150401) |
Current International
Class: |
E05C
1/14 (20060101); E05C 1/00 (20060101); E05b
005/00 () |
Field of
Search: |
;70/150,153,208
;292/173,DIG.31 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Craig, Jr.; Albert G.
Claims
Having thus described my invention, what I claim is:
1. A flush mountable paddle-type lock of the character described
comprising: a sheet metal mounting member having a peripheral
planar flange part and a generally rectangularly-shaped recess
opening into the front side the opposite end portions of which
recess are of different depth, said recess being formed in part by
two spaced parallel side wall parts connected by end wall parts and
a first planar bottom wall part and a second planar bottom wall
part spaced further from the front side of the mounting member than
the first bottom wall part, said second bottom wall part having an
elongated narrow slot adjacent to the end thereof spaced from said
first bottom wall part and located midway between and parallel with
said side wall parts of said recess, a channel-like sheet metal
bolt housing having one end closed and the other end open secured
to the rear side of said second bottom wall part lengthwise with
respect to said elongated slot in said second bottom wall part with
its open end adjacent to the said end wall part adjacent to said
elongated slot, a bolt slidably supported in said bolt housing and
having an end portion normally projecting therefrom through the
open end thereof and a slot aligned with said slot in said second
bottom wall part of said mounting member, spring means in said bolt
housing interposed between the closed end thereof and said slide
bolt biasing said slide bolt to a projected position with respect
to said bolt housing, a sheet metal paddle-type handle member in
said recess in said mounting member and having a relatively planar
front part normally flush with the front of said mounting member
and conforming generally with the shape of the deeper of said
portions of said recess in said mounting member and having spaced
parallel flange parts located adjacent to and parallel with said
side wall parts of said mounting member and an end flange part
adjacent to said end wall part of said mounting member at the
deeper portion of said recess, a pivot pin beneath said planar
front part of said handle member spaced a short distance from said
end wall part of said mounting member at the deeper portion of said
recess and extending through said parallel side wall parts of said
mounting member and said flange parts of said handle member
pivotally connecting said handle member to said mounting member
adjacent to the end thereof at which said slide bolt projects, a
metal trigger member connected with said pivot pin and said handle
member and comprising a blade part projecting through said slot in
said second bottom wall part of said mounting member and into said
slot in said slide bolt, a member slidably supported in said bolt
housing adjacent to said second bottom wall part and having an end
in the path of movement of said bolt, and a key control lock
mounted in said first bottom wall part of said recess in said
mounting member and having a cam member selectively movable into
and out of the path of movement of said member; said key control
not extending outwardly of the planes of said peripheral flange
part of said mounting member and of the bottom wall of said
channel-like sheet metal bolt housing.
2. A flush mountable paddle-type lock of the character described
comprising: a sheet metal mounting member having a peripheral
planar flange part and a generally rectangularly-shaped recess
opening into the front side the opposite end portions of which
recess are of different depth, said recess being formed in part by
two spaced parallel side wall parts connected by end wall parts and
a first planar bottom wall part and a second planar bottom wall
part spaced further from the front side of the mounting member than
the first bottom wall part, said second bottom wall part having an
elongated narrow slot adjacent to the end thereof spaced from said
first bottom wall part and located midway between and parallel with
said side wall parts of said recess, a channel-like sheet metal
bolt housing having one end closed and the other end open secured
to the rear side of said second bottom wall part lengthwise with
respect to said elongated slot in said second bottom wall part with
its open end adjacent to the said end wall part adjacent to said
elongated slot, a bolt slidably supported in said bolt housing and
having an end portion normally projecting therefrom through the
open end thereof and a slot aligned with said slot in said second
bottom wall part of said mounting member, spring means in said bolt
housing between the closed end thereof and said slide bolt biasing
said slide bolt to a projected position with respect to said bolt
housing, a sheet metal paddle-type handle member in said recess in
said mounting member and having a relatively planar front part
normally flush with said peripheral flange of said mounting member
and conforming generally with the shape of the deeper of said
portions of said recess in said mounting member and having spaced
parallel flange parts located adjacent to and parallel with said
side wall parts of said mounting member and an end flange part
adjacent to said end wall part of said mounting member at the
deeper portion of said recess, a pivot pin beneath said planar
front part of said handle member spaced a short distance from said
end wall part of said mounting member at the deeper portion of said
recess and extending through said parallel side wall parts of said
mounting member and said flange parts of said handle member
pivotally connecting said handle member to said mounting member
adjacent to the end thereof at which said slide bolt projects, a
metal trigger member carried by said pivot pin and comprising a
blade part projecting through said slot in said second bottom wall
part of said mounting member and into said slot in said slide bolt
and an abutment spaced from said pivot pin engageable by said end
flange part of said handle member, a member slidably supported in
said bolt housing adjacent to said second bottom wall part and
having an end in the path of movement of said bolt, and a key
control lock mounted in said first bottom wall part of said recess
in said mounting member and including a cam selectively movable
into and out of the path of movement of said member; said key
control not extending outwardly of the planes of said peripheral
flange part of said mounting member and of the bottom wall of said
channel-like sheet metal bolt housing.
Description
FIELD OF INVENTION
This invention relates to key-controlled locks and more
particularly to paddle-type locks of the character mentioned as are
commonly used on swinging doors of industrial cabinets.
SUMMARY OF INVENTION
The invention provides a new and improved paddle-type, flush
mountable, key-controlled, spring-biased, external actuated bolt,
swinging door lock that can be quickly and easily installed, is
rugged and durable in construction, comprises a relatively small
number of parts which for the most part are metal stampings and
therefore inexpensive to produce and assemble, and in which the key
lock is located in an extension of the handle recess, preferably
about one-half of the depth of the recess proper and at the
non-pivoted end of the handle, and has a cam selectively movable
into and out of the path of a member engageable with the bolt for
selectively limiting retraction of the bolt.
BRIEF DESCRIPTION OF DRAWINGS
FIG. 1 is a fragmentary front elevational view of a door and
adjacent doorframe having a lock embodying the invention mounted in
a recess in the door;
FIG. 2 is a longitudinal sectional view, with parts in elevation,
approximately on line 2--2 of FIGS. 1 and 3;
FIG. 3 is a transverse sectional view, with parts in elevation,
approximately on the line 3--3 of FIGS. 1 and 2; and
FIG. 4 is a sectional view approximately on the line 4--4 of FIG.
2.
DESCRIPTION OF PREFERRED EMBODIMENT
The lock of the present invention can be used on any swinging door,
but is especially suited for use on doors of industrial-type
cabinets, for example, on doors of merchandise, tool equipment and
like cabinets or compartments of delivery and utility trucks, etc.
The preferred embodiment of the invention is the lock A illustrated
in the drawings mounted in an opening or recess 10 in a door B. The
door B may be of any suitable construction, and the edge opposite
the lock A is hinged to the door frame C of the compartment or
vehicle body in any suitable manner.
The lock or latch A comprises, in general, a recessed mounting or
body member D, a bolt housing B welded to the rear side of the
mounting member D, a bolt member F slidable in the bolt housing and
biased by a spring G to a projected or latching position, and an
actuating handle H pivoted in the two level recess R of the
mounting member D and operable through a cam-type bolt retracting
trigger member T to retract the bolt member F against the bias of
the spring G. The bolt F is preferably made of a self-lubricating
material such as molded glass-filled Nylon. It may, however, be
otherwise constructed. The trigger member T projects through an
elongated slot 10 in the bottom wall part 12 of the recess R in the
mounting member D and into an elongated slot 14 in the bolt member
F. A striker plate 16 mounted on the doorframe C is provided with
an opening 18 into which the bolt F extends when the door B is in
closed position. The projecting end of the bolt F is inclined as at
19 at an angle of 60.degree. to the length of the bolt so that the
bolt can be retracted by its engagement with the striker plate as
the door is closed without the necessity of the operative
manipulating the handle T. Other suitable angles of inclination may
be employed on the end of the bolt, for example, 45.degree..
The mounting or body member D comprises a rectangular pan-shaped
sheet metal stamping member having a rectangular recess R opening
into its front side and surrounded by a flange part 20. The right
and left-hand ends 22, 24, respectively, of the recess, as viewed
in FIGS. 1 and 2, are of different depths. The wall part 12 of the
mounting member D forms the bottom of the deeper right-hand recess
part 22 and the bottom wall part 26 forms the bottom or back of the
shallower recess part 24. The left and right-hand bottom or back
wall parts 12, 26 of the recess R are connected by a vertical wall
28. The recess has opposed side walls 30, 32 and opposed end walls
34, 36 which with the bottom wall parts 12, 26 and the step wall 28
define the two level shallow recess R.
The bolt housing E is a channel-shaped sheet metal stamping member
having a web or bottom wall 40, a pair of opposed side walls 42,
44, a rear end wall 46 and flanges 48, 50 projecting outwardly from
the side walls and welded to the bottom wall part 12 of the
mounting member D. The bolt housing E with the bottom wall part 12
of the mounting member provide a rectangular aperture within which
the bolt F is slidably supported. The bolt F is generally
rectangular in cross-sectional shape corresponding essentially with
that of the aperture within which it is slidably supported and the
rear or left-hand end of the bolt, as viewed in FIG. 2, provides an
abutment for the right-hand end or flange 60 of a channel-like
member 62 slidably supported in the rear or left-hand end part of
the bolt housing E. The left-hand end of the member 62 extends
through the end of the bolt housing and has a down turned flange
64. The flange 60 is interposed between the right-hand end of the
spring G and the left-hand end of the bolt E. The left-hand end of
the spring abuts against inwardly bent part 66 of the bolt housing
E which part forms the bottom or left-hand end of the aperture
within which the bolt reciprocates. The construction is such that
as the bolt F reciprocates in the bolt housing the member 62 moves
with it.
The handle H is a sheet metal stamping member comprising a
generally rectangular substantially flat plate-like portion 70, a
pair of inturned flanges 72, 74 along the sides of the portion 70
and which lie adjacent the longitudinal side walls 30, 32,
respectively, of the recess R in the mounting member D. The handle
H is pivotally connected adjacent to its right-hand end to the
mounting member D, that is, the end adjacent to the projecting end
of the slide bolt by a hinge or pintle pin 76 extending through
aligned openings in the side flanges 72, 74 of the handle member H
and the side walls 30, 32 of the mounting member D. One end of the
pintle pin is headed and the other end is apertured for the
reception of a cotter pin 84 which retains the parts assembled
while permitting ready assembly and disassembly thereof. At the
pivoted end thereof, the handle H is provided with an inturned
flange 80 which engages an abutment surface 82 of the bolt
actuating trigger member T which surface is offset to the right
from the pivot pin. The trigger member T has an extension or blade
part 86 which extends through the elongated slot 10 in the mounting
member and into the slot 14 in the bolt. The left-hand side of the
blade 86 of the trigger member normally abuts against the left-hand
end of the slot in the bolt. The slot 14 in the bolt is extended to
the right, as viewed in FIG. 2, so that the bolt may be retracted
by engagement with the striker plate upon closing of the door to
which the lock is mounted without moving the trigger member T.
Alternatively, the slot 14 may be only slightly longer than the
blade of the trigger member.
The bolt actuating trigger T is a relatively narrow member
rotatably supported on the pintle or pivot pin 76 which extends
through an aperture therein. The abutment surface 82 is on the
front or forward end of the trigger member and the construction is
such that as the handle member is rotated in a clockwise direction,
as viewed in FIG. 2, the flange 80 thereof, because of its
engagement with the abutment 82 on the trigger member, rotates the
trigger member in a clockwise direction about the pintle pin 76 and
retracts the bolt F.
The bolt actuating trigger T is a substantial member but is
relatively narrow referring to the distance or the length of the
pintle pin 76 between the flanges 72, 74 of the handle member and
is prevented from moving axially along the pintle pin 76 by
engagement of the sides thereof with the sides of the slot 10 in
the wall part 12 of the mounting member through which slot the
blade part 86 of the trigger member extends at all times. The
right-hand end of the slot 10 preferably limits movement of the
trigger member about the pintle pin 76 in a counterclockwise
direction, as viewed in FIG. 2, and upon extension of the bolt
under the bias of the spring G the abutting surface 82 by its
engagement with the flange 80 rotates the handle H in a
counterclockwise direction about the pintle pin 76. The spring G
thus maintains the handle member H in its closed position, shown in
the drawings, with its side walls or flanges 72, 74 engaging a
ridge 88 in the part 12 and with the upper surface of the part 70
flush with the flange part 20 of the mounting member D. The handle
member H opposite the pivot pin 76 has a part 90 extending to the
left beyond the side walls 72, 74 formed by an extension of the
part 70 reversely bent to provide a underlying surface engageable
by the fingers of an operator for the manual operation of the
handle.
The door latch A includes a key-operated lock L which comprises a
lock mounting cylinder 100, preferably of non-cylindrical form,
mounted in a non-cylindrical aperture such that it will not rotate
therein in the rear wall part 26 forming the bottom of the shallow
part 24 of the recess in the mounting member D. The cylinder 100 is
retained in the member D by a U-shaped member 103 located at and
abutting the rear side of the bottom part 26 and the tines of which
engage in slots 104 in opposite sides of the member 100. The
cylinder 100 supports a key-actuatable and rotatable lock component
or member to the inner end of which a cam member 106 is riveted.
The projecting end of the cam member 106 can be selectably rotated
by use of a key into and out of the path of the member 62 and in
turn the bolt F. When the end of the cam 106 is behind the part 64
of the member 62 the bolt member F cannot be retracted. The member
62 can be fixed to the bolt F, if desired, in which event it
becomes a part of the bolt member.
The level of the bottom or back wall part 26 of the mounting member
B is such that the lock L is located entirely behind or below the
flange part 20 of the mounting member, but close enough to the top
of the recess R so as to be readily accessible to an operative.
As an alternative construction the cylinder 100 can be threaded and
secured in the wall part 26 by a nut thereon engageable with the
rear or bottom side of the part 26 and the cam member 104 can be
secured to the rotatable lock compartment by a threaded screw or by
welding rather than being riveted thereto. This construction
facilitates removal of the key control L without removing the lock
from a door or the like in which it might be mounted.
The size and strength of the respective parts are such that if the
handle H is forceably moved in a clockwise direction, as viewed in
FIG. 2, with the bolt F locked, that is, with the cam of the key
control L preventing retraction of the bolt, the pintle pin 76 will
bend before the bolt will retract thus making it impossible to
force the lock, that is, retract the bolt, and open a door to which
the latch is connected when the door is locked without use of akey.
In the embodiment shown the width of the trigger member T, as
viewed in FIG. 3, is about one tenth that of the distance between
the side walls 30, 32 of the mounting member D and the slot 10 in
the mounting member is only slightly wider than the trigger member,
but it is to be understood that a trigger member of different width
may be employed provided it does not interfere materially with the
bending of the pintle pin upon the handle being forced. Preferably
the width of the trigger member is not greater than about one-half
the distance between the side walls 30, 32.
The construction of the latch is such that it can be readily
mounted in right or left-hand doors or similar structure and be
wholly flush therewith, that is, with none of the operating parts
of the lock protruding forwardly of the mounting member. It is also
noted that the key control L does not protrude beyond the rear or
bottom of the lock proper. One of the important features of the
present lock is the fact that the key control L cannot be moved to
locked position without the bolt F being fully projected or
extended. If the bolt is not fully extended when the key is turned
to lock position the cam 106 will force the member 62 and in turn
the bolt to the right until the left-hand end of the slot 14 in the
bolt is in engagement with the blade 86 of the trigger member
T.
While the preferred embodiment of the invention has been shown and
described in considerable detail it will be apparent that the
invention is not limited to the particular construction shown and
it is the intention to hereby cover all adaptations, modifications
and uses thereof which come within the practice of those skilled in
the art to which the invention relates, and the scope of the
appended claims.
* * * * *