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Патент USA US3020084

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Feb. 6, 1962
J. PICKLES
3,020,074
DOOR LOCK
Filed Dec. 21, 1959
FIG.|.
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IN VEN TOR.
JOSEPH PICKLES
Wm /A% 7*
AT1£IORNEYS
United States Patent O??ce
‘3,020,074 '
Patented Feb. 6, 1962
1
2
3,020,074
locking performance is concerned, involves the use of
only four essential parts. These are the outside door-'
handle operated member, referred to above; a toothed
1300K LOCK
Joseph Pickles, Dearborn, Mich, assignor to Ferro
Stamping Company, Detroit, Mich, a corporation of
rotary member coaxially ?xed to and movable with a
locking bolt, which may be assumed for the present pun
pose to bee toothed type; a latching detent member,
Michigan
Filed Dec. 21, 1959, ?er. No. 860,791
6 (Ilaims. (Cl. 2§2~2S®
shown in the form of a bell crank and having a ?xed
pivot about which it moves into and out of latching en
gagement with the bolt latch member referred to, the
The present invention relates to a door lock, particu
larly devised for use as an automobile door lock, which
latching member in question affording a ?oating type of
pivot for the ?rst mentioned outside-operated member;
is of extremely simple and inexpensive type. Generally
speaking, its operation involves the principle of locking
and a control or locking member which is swingable into
and out of positions in which it affords a ?xed fulcrum
the door by disabling a door operator, such as an outside
handle-controlled member or linkage, from performing
for the ?rst mentioned operator or operated member,
its normal function, upon manipulation of said member 15 i.e., the member operated by an outside door.
or linkage, of causing a latching or detent element of
There is, in addition to the basic components referred
the ‘lock to move out of latching or restraining engage
ment with a rotary type latch member. This may be
to above, a further operating member controlled in the
usualfashion from an inside door handle through a suit
either of the rotary bolt type having a plurality of equal
able linkage, and operation of this inside-operated mem~
ly spaced tooth-like latching projections about its pe
20 ber results in unlatching of the door, the ?rst mentioned
riphery, or a forked oscillatory, spring urged type of
latch, either of these types of latch being adapted to take
latching engagement with a ?xed keeper on the auto
mobile door frame.
-
Locks of this general sort, in which the operating
member is thus disabled, are sometimes referred to as
free wheeling or ovcrrunning, being characterized by the
fact that when they are locked the door operator acts in
the normal manner, but is incapable of transmitting an
nnlatching operation to the detent to release the bolt of
the look. In this respect, they are distinguished from
another class of locks in which the door operator, usually
an outside handle-controlled member or linkage, is posi
tively blocked from a motion which would unlatch the
door lock.
7
It is an object of the invention to provide an improved
and highly simpli?ed door lock of the so-called free
wheeling type, which consists of an absolute minimum
of component parts, and is thus to be sharply distin
'
member of the combination described in the preceding
paragraph then swinging about a ?xed frame or plate
abutment to cause it to swing the latching ‘detent mem
ber out of latching engagement with the bolt latch mem
her.
In association with an inside-operated structure
of this sort, the invention contemplates provisions where‘
by the abutment-furnishing locking member referred to
above may be swung by the ‘structure in question into
and out of a position in which it furnishes the required
‘fulcrum for unlatching action or removes the fulcrum
to disable the latching device.
The foregoing ‘as well as other objects will become
more apparent as this description proceeds especially
when considered in connection with the ‘accompanying
drawing illustrating a preferred embodiment of the in
vention, wherein:
FIG. 1 is a more or lessv schematic view in end ele
vation of a free wheeling type of lock in accordance
with the invention, showing operating, latching and lock
guished from the relatively complex locks, both free 40 ing members in a relationship for unlatching of the lock
wheeling and positive blocking or dogging in action,
vupon manipulation of the operating member;
which are presently proposed or in use.
Another object is to provide a lock of the character
FIG. 2 is a view in vertical cross section along line
2-4; of FIG. 1, better showing the locking member and
its assembly in relation to an inside operated member of
described in which, in the locked condition thereof, dur
ing which unlatching movement as originated by an op 45 the lock; and
.
erating member is ineffective to unlatch the lock,‘ the en- ,
‘FIG. 3 is a fragmentary view in section similar to
gagement of a latching detent member with a further I "FIG. 2, showing the locked condition of the look;
latch member which moves with the rotary or oscillatory
. The improved lock is generally designated by the ref
spring urged bolt is maintained unbroken.
In the un- '
crence numeral 10, and comprises a mounting plate 11
locked condition, movement of" the operator results in 60 in the form of a sheet metal stamping of L-shaped out
swinging of the detent member out of locking engage
line providing a main plate 12 of vertically elongated
ment with the bolt latch member, thereby enabling dis
rectangular outline and a ?ange 13 of an approximately
engagement of the bolt with the keeper of the lock. In
truncated triangular ‘shape.’ As will be understood by
accordance with the invention, the disabling of the op
those skilled in the art, plate 11 is mounted upon the
erator member in regard to its normal function of mov 55 door at the free swinging end of the latter, with its plate >
the latch detent member is performed by removing
the ‘fulcrum anchor about which it swings in such un
12 flush with that end and the flange 13 extending around '
the inner edge of the door end. So mounted, a rotary
latching effort; and in this respect the principle under
lying the invention is similar to that controlling locks
or spring urged type of locking bolt (not shown, but of
entirely conventional ‘and well known character) is adapt
of the character illustrated and described in my Letters 60 ed to be releasably engaged with a keeper device or keeper
Patent 2,876,032 of March 3, 1959, and in the copend
pin (not shown) on the ?xed door frame. The locking
ing application of ‘William G.=Gilmore and Elmore L.
bolt in question projects outwardly of plate 12 and the
door end.‘
Zibbell, Serial No. 742,192, ?led June 16, 1958, now
Patent No. 2,973,216, dated ‘February 28, 1961.
The reference outline '15 shown in dot-dash line in
More speci?cally, it is an object of the invention to
provide an improved and simpli?ed lock of the free
wheeling type which, insofar as its basic latching and
FIG. 1 of the drawings, may be considered to represent
the peripheral rotative path of a locking bolt (not shown)
to the shaft of which a toothed latch member 16 is co
3,020,074
3
axially secured, with the latch member 16 on the oppo
site side of plate 12 from the bolt. Appropriate pro
visions of a simple and conventional type will be made to
rotatably mount such latch bolt unit on plate 12.
Latch member 16 is formed to provide a plurality of U!
4
meat or fulcrum arm 33 to the dotted line position, the
fulcrum for the actuating member arm 32 is removed;
spaced circumferential relationship about the latch mem
ber, a member of this type being entirely conventional.
and, consequently, when downward force is applied on its
arm 29, the actuating member 24 simply swings about its
pivot 25 (now a ?xed pivot, relatively speaking) and its
arm 32 swings upwardly without resistance. The force of
spring 22 is ample to prevent displacement of detent
member arm 20 from the solid line locking engagement
The reference numeral 18 designates a holding or detent
with a latch member tooth 17, as viewed in FIG. 1.
ratchet-like latching teeth 17 projecting radially in equally
member in the form of a bell crank suitably pivoted on 10
plate 12 at 19, this pivot being a ?xed one. Detent 1.8
Fixed stops 27, 28 limit upward and downward move
ment, respectively, of the actuating member 24; and the
stop 27 has a further signi?cant function to be referred to.
Referring to FIG. 2 of the drawing, the reference
operating arm 21, the arm 20 being adapted to have latch
numeral 40 generally designates an arm or lever which
ing engagement with one of the teeth 17, as shown in solid
line in FIG. 1, and to be moved, upon clockwise swing 15 has a ?xed pivot at 41 on the ?ange 13 of the mounting
plate, and includes ‘a downwardly extending arm 42 to
of the arm, to the latch-releasing position shown in dotted
which a horizontally extending link 43 is adapted to be
line in FIG. 1. Member 18 is urged in a direction for
pivotally connected at 44. Link 43 is a part of an inside
latching engagement with the teeth 17 by appropriate
handle-operated control of conventional character. At
means, conventionally shown as a coil spring 22 acting
its upper end, the member 40 is forked to provide an
between the arm 20 of detent 18 and the ?ange 13 of
includes a holding or latching arm 20 and a control or
operating arm 45 for the member 24, and a control arm
46 separated from the arm 45 by a space 47. The con
trol or locking member 35 has its second arm 48 pro
of an operating member, generally designated 24. The
vided with an offset lug 49 adapted to enter into the space
end of the arm 21 of detent 18 provides a_ ?oating pivot
at 25 for the operating member 24 at a point approxi 25 47.
mounting plate 11.
The swing of detent member 18 is controlled by means
mately midway of its horizontal length. As urged by the
spring 22 acting through the detent member 18, member
24 is upwardly restrained by a cushioned stop 26 appro
priately mounted upon the mounting plate 12 directly
above the position of the ?oating pivot 25 as shown in
FIG. 1 of the drawings. Plate 12 is ‘also provided with
suitable formations affording vertically spaced upper and
Thus it is seen that, with the ?ange-pivoted member
42 operated clockwise through link 43 by the inside oper~
ator handle (not shown) the arm 45 will move left-hand
arm 32 (FIG. 1) of operating member 24 downwardly.
Since the right-hand ‘arm 29 of member 24 is restrained
from above by the stop lug 27, and by link 30, due to the
medial pivoting of member 24 to detent 13 at 25 the
downward force on arm 32 will cause member 24 to
lower ?xed stops 27, 28 for the purpose of limiting ver
swing about its pivot to link or member 36 at 31 as a
tical movement of the right-hand end of guiding member
35 fulcrum, if the linking member 30 is restrained from
24.
upward movement. This causes downward thrust to be
The operating member 24 has an elongated right~hand
exerted on the pivot 25, with resultant swing of detent
arm portion 29 (as viewed in FIG. 1), extending out
member 18 in clockwise direction, against the force of
wardly past the margin of plate 12, an upwardly extend
spring 22. Again the action is that of a second class lever,
ing operating link 30 or other suitable operating member
and the detent arm 20 is swung out of holding relation
is adapted to be pivotally connected at 31 to the end of
to the latch tooth 17 previously engaged thereby.
arm 29. As indicated above, the linkage is adapted to
The arm portion 46 of inside operated member 40,
be operated by a manual outer door handle in a fashion
in the clockwise swing of the latter to unlatch the lock
such that downward movement of link 30 produces un
in the manner described, will engage the arm 48 of lock
latching movement of the detent member 12. An offset
or control member 35, so as to swing the latter counter
elongated arm portion 32 of operating member 24 extends
clockwise (if in locking or free wheeling, dotted line
to the left (as viewed in FIG. 1) through a vertically
position, FIG. 2) and therefore restore the abutment or
elongated opening 33 in the ?ange 13 of mounting plate
fulcrum ‘foot 38 of member 35 to operative position
11.
.
above arm 32 of operated member 24. Thus the lock
The reference numeral 35 generally designates the con
is restored to a normal condition so that the next ma
trol or locking member of the invention, which is of hell
nipulation of the outside handle will unlatch the lock.
crank outline, pivoted at 36 on an embossment 37 of
By the same token, when the inside operated member
?ange 13 directly above the slot or opening 33. Control
40 is swung counterclockwise, by a movement of the
member 35 has a foot or arm 38 which is adapted to be
inside handle (not shown) opposite to that required for
placed in a solid line position of FIG. 1, directly over
unlatching, its arm 45 will engage the lug 49 on control
the arm 32 of operating member 24, and in this position
member arm 48, thus swinging locking or control mem
to act as an abutment preventing upward movement of
ber 35 to the dotted line position of FIG. 2; and this
this end of the arm, and as a fulcrum about which operat~
places the lock in a free wheeling or locked condition,
ing member 24 may swing when downward force is ap
the effect of which has been described above.
plied to its right-hand arm 29.
As thus constituted and mounted, with force applied 60 Additional means are provided to swing control mem
ber 35 to and from operative, fulcrum abutment position
to its right-hand arm 29, with the load represented by
(permitting inside or outside unlatching) and unlocked
arm 21 of holding or detent member 18 pivoted at its mid
or free wheeling position (dotted line in FIG. 2), through
point, and with its fulcrum at its left-hand arm 32, the
the agency of the usual upright push button (not shown)
operating member 24 is a second class lever, and down
ward thrust applied by the operating link or member 30 65 extending upwardly through the door opening. This may
take the form of a pin 50 extending from the side of the
causes member 24 to pivot about the lower end of con
arm 38 of locking or control member 35, and having con—
trol member arm 38 as a fulcrum. Consequently, the
ventional means (not shown) for operatively connecting
locking or detent member 18 is swung clockwise about
the same to such push button.
its pivot 19 against the action of spring 22 to move its
The invention affords a free wheeling type automotive
arm 20 outwardly to the dotted line release position of 70
door lock of great simplicity, yet compact and reliable
FIG. 1. The toothed latch member of the bolt unit is
in operation. An operating connection or linkage is
released and the door may be swung outwardly relative
maintained at all times between an operating handle and
to its frame keeper (not shown),
a detent which normally holds the lock bolt latched, as
However, when the locking or control member 35 is
distinguished from other types of free wheeling lock, in
swung clockwise, as viewed in FIG. 2, to bring its abut
3,020,074
6
which an operating linkage is disabled, at one point or
more between the operator and detent to disable the link
such control, comprising a control member mounted on
said support for movement to and from position in which
it is engaged as a fulcrum point by said operating mem
from transmitting unlatching effort to the detent. This
continuity of force transmitting connection is made pos
sible through the use of selective fulcrum points for the
ber on one side of its pivot to the detent, whereby as so '
detent connected operating member 24, depending upon
fulcrummed said operating member may be actuated to
‘move said detent out of said holding position and when
whether operation of the latter is from the outside or the
not so fulcrummed to cause said operating member to
inside, and, in the former case, of disabling by shifting
swing idly about its pivot to said detent when actuated,
the fulcrum out of position to be acted upon by said
means providing a further fulcrum point for said operat-'
operating member.
10 ing member on the side of its detent pivot remote from
The drawing and the foregoing speci?cation constitute
said ?rst named fulcrum point, and a device acting on
a description of the improved door lock in such full,
said operating member adjacent said ?rst named fulcrum
clear, concise and exact terms as to enable any person
point to swing said operating member about said further
skilled in the art to practice the invention, the scope of
fulcrum point and move said detent out of said holding
which is indicated by the appended claims.
What I claim as my invention:
15
position.
4. A door lock comprising a support having a detent
mounted thereon for movement to ‘and from position in
member pivotally mounted thereon, a detent pivotally
which it holds a latching member of the lock against
mounted on said support for movement to and from posi
movement to release a door, means urging said detent
tion in which it holds said latching member against move 20 toward said holding position, an operating arm having a
ment to release the door, means urging said detent-to
pivotal connection intermediate the length thereof to said
said holding position, an elongated operatingmember
detent which enables the arm to either swing idly about
pivotally mounted medially of its length on said detent
said pivotal connection as a fulcrum point, and thereby
and adapted to operate the latter for movement out’of
fail to move said detent from said'holding position, or to
said holding position under predetermined control of said 25 move with said detent in said movement of the latter,
operating member, locking means to optionally afford
said operating arm being adapted to swing about a fur
such control, comprising a control member mounted on
ther fulcrum point on one side of said pivotal connec
said support for movement to and from position in which
tion to move said detent, through the agency of. the con
it is engaged as a fulcrum point by said operating mem
nection, out of said holding position of the detent, means
1. A door lock comprising a support having a latching
ber on one side of its pivot to the detent, whereby as so 30 optionally engaged by said operating arm to provide
fulcrummed said operating member may be actuated to
said further fulcrum point, means to selectively move said
move said detent out of said holding position and when
last named means into and out of position for said
not so fulerummed to cause said operating member to
optional engagement by said operating arm, and an op
swing idly about its pivot to said detent when actuated,
erating device engageable with said operating arm on the
means engageable with said operating member to cause 35 opposite side of said pivotal connection to move the arm
said operating member to be actuated to move said de
about said further fulcrum point.
tent out of said holding position, means providing a fur
5. A door lock comprising a support having a detent
ther fulcrum point for said operating member on the
mounted thereon for movement to and from position in
side of its detent pivot remote from said ?rst named
which it holds a latching member of the lock against ~
fulcrum point, and means engageable with said operating 40 movement to release a door, means urging said detent
member to swing the same about said further fulcrum
toward said holding position, an operating arm having a
point to move said detent out of said holding position.
2. A door lock comprising a support having a latching
member pivotally mounted thereon, a detent pivotally
pivotal connection intermediate the length thereof to said
movement out of said holding position under predeter
mined control of said operating member, locking means
to optionally aiford such control, comprising a control
tion, out of said_holding position of the detent, means
optionally engaged by said operating arm to provide said
detent which enables the arm to either swing idly ‘about
said pivotal connection as a fulcrum point, and thereby
mounted on said support for movement to and from posi
fail to move said detent from said holding position, or
tion in which it holds said latching member against move 45 to move with said detent in said movement of the latter,
ment to release the door, means urging said detent to said
said operating arm being adapted to swing about a fur
holding position, an operating member pivotally mount
ther fulcrum point on one side of said pivotal connection
ed on said detent and adapted to operate the latter for
to move said detent, through the agency of the connec
further fulcrum point, means to selectively move said last
named means into and out of position for said optional
from position in which it is engaged as a fulcrum point
engagement by said operating arm, an operating device
by said operating member, whereby as so fulcrummed
engageable with said operating arm on the opposite side
55
said operating member may be actuated to move said
of said pivotal connection to move the arm about said
detent out of said holding position and when not so ful
fur-ther fulcrum point, means providing a still further
crummed to cause said operating member to swing idly
fulcrum point at said opposite side of the connection, and
about its pivot to said detent when actuated, means pro
means to swing said detent and connection thereabout to
viding a further fulcrum point for said operating mem
move the detent out of said holding position.
ber remote from said ?rst named fulcrum point, and a 60
6. A door lock comprising a support having a detent
device acting on said operating member adjacent said ?rst
pivotally mounted thereon for movement to and’ from
named fulcrum point to swing said operating member
position in which it holds a latching member of the lock
' about said further fulcrum point and move said detent
against movement to release a door, means urging said
out of said holding position.
detent toward said holding position, an operating arm
3. A door lock comprising a support having a latching 65 having a pivotal connection intermediate the length there
member pivotally mounted thereon, a detent pivotally
of to said detent which enables the arm to either swing
mounted on said support for movement to and from posi
idly about said pivotal connection as a fulcrum point, and
tion in which it holds said latching member against move
thereby fail to move said detent from said holding posi
ment to release the door, means urging said detent to 70 tion, or to move with said detent in said movement of ,
member mounted on said support for movement to and
said holding position, an elongated operating member
pivotally mounted medially of its length on said detent
and adapted to operate the latter for movement out of
said holding position under predetermined control of said
operating member, locking means to optionally afford 75
the latter, said operating arm being adapted to swing
about a further fulcrum point on one side of said pivotal
connection to move said detent, through the agency of
the connection, out of said holding position of the de
tent, means optionally engaged by said operating arm to
3,020,074
7
8
provide said further fulcrum point, locking means for said
and means to swing said detent and connection thereabout
to move the detent out of said holding position.
References Cited in the ?le of this patent
detent including means to selectively move said last
named means into and out of position for said optional
engagement by said operating arm, an operating device
engageahle with said operating arm on the opposite side
of said pivotal connection to move the arm about said
further fulcrum point, means providing a still further
fulcrum point at said opposite side of the connection,
UNITED STATES PATENTS
1,970,807
2,636,765
Lovell ______________ __ Aug. 21, 1934
D2111 ________________ __ Apr. 28, 1953
2,876,032
Pickles _______________ __ Mar. 3, 1959
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