U.S. patent number 3,679,251 [Application Number 05/081,643] was granted by the patent office on 1972-07-25 for closure latch.
This patent grant is currently assigned to General Motors Corporation. Invention is credited to Henry J. Brockman, Bela Sandor.
United States Patent |
3,679,251 |
Brockman , et al. |
July 25, 1972 |
CLOSURE LATCH
Abstract
A vehicle body door lock includes a fork bolt mounted on the
frame for movement between latched and unlatched positions, a
detent mounted on the frame for movement between holding and
released positions with respect to the bolt, and outside operating
means which are selectively coupled and uncoupled with respect to
the detent. An inside remote lever is swingably mounted on the
frame and connected to the inside remote handle for movement in
opposite directions upon corresponding movement of the remote
handle. A detent release lever is coaxially mounted with the remote
lever and has a foot overlying the detent. A connecting link is
connected at one end to the release lever and the other end of the
link mounts a pin slidable in a slot of a connecting lever
coaxially mounted with the remote lever and release lever. The
connecting lever is positionable in connected and disconnected
positions and respectively located in each position by an
overcenter coil torsion spring and the engagement of tabs of the
lever with the detent and the frame. When the connecting lever is
in connected position, the pin of the connecting link is engageable
by a foot of the remote lever to move the release lever into
engagement with the detent and release the detent upon movement of
the remote lever in one direction by the remote handle. When the
detent is moved by the bolt, the detent engages the positioning tab
of the connecting lever to move the lever to disconnected position
and move the pin of the connecting link out of the path of the
remote lever foot. Movement of the remote lever by the remote
handle in an opposite direction engages a foot of the remote lever
with the positioning tab of the connecting lever to move the
connecting lever to connected positions.
Inventors: |
Brockman; Henry J. (Warren,
MI), Sandor; Bela (Detroit, MI) |
Assignee: |
General Motors Corporation
(Detroit, MI)
|
Family
ID: |
22165450 |
Appl.
No.: |
05/081,643 |
Filed: |
October 19, 1970 |
Current U.S.
Class: |
292/216;
292/DIG.27 |
Current CPC
Class: |
E05B
85/243 (20130101); Y10T 292/1047 (20150401); Y10S
292/27 (20130101) |
Current International
Class: |
E05B
65/32 (20060101); E05c 003/26 () |
Field of
Search: |
;292/216,280,DIG.27,336.3 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Moore; Richard E.
Claims
We claim:
1. In a vehicle body having a door, a door lock mounted on the door
and including a lock frame, a detent swingably mounted on the frame
for movement between holding and released positions with respect to
a bolt mounted on the frame for movement between latched and
unlatched positions, and an inside release member movably mounted
on the body, the combination comprising, a remote lever swingably
mounted on the frame and operatively connected to the inside
release member, a detent release lever swingably mounted on the
frame for engagement with the detent to move the detent to released
position upon swinging movement of the remote lever in one
direction relative to the frame, the detent release lever being
engageable by the detent upon movement of the detent by the bolt to
swing the detent release lever in an opposite direction relative to
the frame, connecting means selectively and alternately
positionable in connecting and disconnecting positions to
selectively and alternately connect and disconnect the remote lever
and the detent release lever, means operable by the remote lever
for positioning the connecting means in connecting position, and
means operable upon movement of the release lever by the detent for
positioning the connecting means in disconnecting position.
2. In a vehicle body having a door, a door lock mounted on the door
and including a lock frame, a detent swingably mounted on the frame
for movement between holding and released positions with respect to
a bolt mounted on the frame for movement between latched and
unlatched positions, and an inside release member movably mounted
on the body, the combination comprising, a remote lever swingably
mounted on the frame and operatively connected to the inside
release member, a detent release lever swingably mounted on the
frame for engagement with the detent to move the detent to released
position upon swinging movement of the remote lever in one
direction relative to the frame, the detent release lever being
engageable by the detent upon movement of the detent by the bolt to
swing the detent release lever in an opposite direction relative to
the frame, means connected to the detent release lever and
selectively positionable in the path of movement of the remote
lever for engagement thereby to selectively connect the remote
lever and the detent release lever, means operable by the remote
lever for positioning the connecting means in the path of movement
of the remote lever, and means operable upon movement of the
release lever by the detent for positioning the connecting means
out of the path of movement of the remote lever.
3. In a vehicle body having a door, a door lock mounted on the door
and including a lock frame, a detent swingably mounted on the frame
for movement between holding and released positions with respect to
a bolt mounted on the frame for movement between latched and
unlatched positions, and an inside release member movably mounted
on the body, the combination comprising, a remote lever swingably
mounted on the frame and operatively connected to the inside
release member, a detent release lever swingably mounted on the
frame for engagement with the detent to move the detent to released
position upon swinging movement of the remote lever in one
direction relative to the frame, the detent release lever being
engageable by the detent upon movement of the detent by the bolt to
swing the detent release lever in an opposite direction relative to
the frame, an abutment member mounted on the release lever for
movement therewith and movement relative thereto, a connecting
member operatively connected to the abutment member means mounting
the connecting member on the frame for selective and alternate
movement between connecting and disconnecting positions wherein the
connecting member selectively and alternately positions the
abutment member in the path and out of the path of the remote
lever, means operable by the remote lever for positioning the
connecting member in connecting position, and means operable upon
movement of the release lever by the detent for positioning the
connecting member in disconnecting position.
4. In a vehicle body having a door, a door lock mounted on the door
and including a lock frame, a detent swingably mounted on the frame
for movement between holding and released positions with respect to
a bolt mounted on the frame for movement between latched and
unlatched positions, and an inside release member movably mounted
on the body, the combination comprising, a remote lever swingably
mounted on the frame and operatively connected to the inside
release member, a detent release lever swingably mounted on the
frame for engagement with the detent to move the detent to released
position upon swinging movement of the remote lever in one
direction relative to the frame, the detent release lever being
engageable by the detent upon movement of the detent by the bolt to
swing the detent release lever in an opposite direction relative to
the frame, a connecting link swingably mounted on the detent
release lever and including an abutment member, a connecting member
swingably mounted on the lock frame for movement between connecting
and disconnecting positions and including a slot slidably receiving
the abutment member to position the abutment member in the path of
the remote lever when the connecting member is in connecting
position and to position the abutment member out of the path of the
remote lever when the connecting member is in disconnecting
position, means on the remote lever engageable with the connecting
member upon swinging movement of the remote lever in one direction
to position the connecting member in connecting position, the
remote lever being swingable in an opposite direction into
engagement with the abutment member to move the release lever and
release the detent, movement of the release lever by the detent
moving the connecting member to disconnecting position by
engagement of the abutment member with the slot thereof.
Description
This invention relates to closure latches and more particularly to
vehicle body door locks of the type wherein closing movement of the
door automatically disconnects the inside release means.
The door lock of this invention includes a coupling arrangement
between the inside remote handle and the detent whereby closing
movement of the door automatically disconnects the remote handle
from the detent. Further, the door lock includes a resetting
arrangement whereby movement of the remote handle in a direction
opposite its normal direction of movement serves to reconnect the
remote handle with the detent. Thus, the remote handle is
automatically disconnected each time the door is closed but can be
selectively connected by an occupant of the vehicle when desired in
a very simple and expeditious manner and without requiring the
operation of any other operating means.
It is therefore the primary object of this invention to provide an
improved vehicle body door lock having a coupling arrangement for
automatically disconnecting the remote handle from the detent each
time that the door is closed and being selectively operable by
movement of the remote handle in a direction opposite its normal
direction of movement to reconnect the remote handle and the
detent.
This and other objects of the door lock of this invention will be
readily apparent from the following specification and drawings
wherein:
FIG. 1 is a partial side elevational view of a vehicle body
embodying a door lock according to this invention;
FIG. 2 is an enlarged partially broken away view taken generally
along the plane indicated by line 2--2 of FIG. 1 and showing the
bolt in latched position and the coupling arrangement connecting
the remote handle to the detent;
FIG. 3 is an enlarged view taken generally along the plane
indicated by line 3--3 of FIG. 2;
FIG. 4 is a sectional view taken generally along the plane
indicated by line 4--4 of FIG. 3;
FIG. 5 is a view of the coupling arrangement when the remote handle
is releasing the detent;
FIG. 6 is a view similar to FIG. 3 showing the coupling arrangement
disconnecting the remote handle from the detent; and
FIG. 7 is a perspective view of the coupling arrangement
disconnecting the remote handle and detent.
Referring now to FIG. 1 of the drawings, a vehicle body designated
generally 10 includes a front door 12 swingably mounted adjacent
its forward edge 14 on the body for movement between a closed
position as shown and an open position, not shown. Door 12 is held
in closed position by a door lock designated generally 16 according
to this invention.
The door lock 16 is best shown over-all in FIGS. 2 and 7, and,
except for the coupling arrangement, is similar to that shown and
described in Fox et al. U.S. Pat. No. 3,190,682, issued June 22,
1965 and assigned to the assignee of this invention.
Generally the lock 16 includes a main frame 18 and an auxiliary
frame 20 which is staked at various places 22 to the main frame. A
fork bolt 24 is swingably mounted on a pivot pin 26, extending
between the main and auxiliary frames, for movement between a
latched position shown in FIG. 2, wherein the bolt engages a
conventional headed striker pin 27, and an unlatched position
counterclockwise thereof. A coil torsion spring 28 is mounted on
the pivot pin 26 and hooked between the main frame and the bolt to
continuously bias the bolt to unlatched position. The detent 30 is
on a pin 32, extending between the main and auxiliary frames, for
movement between a detented position as shown, wherein the detent
foot 34 engages a shoulder 36 of the bolt, and an undetented
position, not shown, wherein the detent foot 34 is out of
engagement with the bolt shoulder 36 or a second bolt shoulder 37
and engages an edge portion 38 of the bolt upon movement of the
bolt to unlatched position. The detent is conventionally biased to
detented position by a torsion spring as shown.
An outside door handle assembly 40, FIG. 1, includes a conventional
push button assembly having a push rod 42 indicated in FIG. 2. The
push rod 42 is adapted to engage a lateral flange of an outside
operating lever 44 which is pivoted at 46 on an extension 48 of the
main frame 18. A coil torsion spring 50 on the pivot 46 is hooked
between a notched lateral tab 52 of extension 48 and a notched tab
54 of an intermittent lever 56. The intermittent lever is pivotally
and slidably connected at 58 to the lever 44 by means of a slot in
the lever 44 and an offset tab of the intermittent lever. The
action of the spring 50 engages an edge of a slot 60 in the lever
44 with the tab 52 to normally locate the levers 44 and 56 as
shown. The lower end of the intermittent member 56 includes a
lateral tab 62 which normally underlies a shoulder 64 of the detent
30. Shifting movement of the lever 66 upwardly by the lever 44
engages tab 62 and shoulder 64 to move the detent to released
position against the action of its biasing spring.
A locking lever 66 pivoted at 68 to the auxiliary frame is movable
between an unlocked position, as shown, and a locked position
slightly clockwise thereof. The locking lever is selectively and
alternately located in each position by engagement of a lateral tab
70 of the auxiliary frame with opposite edges of a notch 72 in the
locking lever. An overcenter type coil torsion spring 74
alternately biases the locking lever to either position. When the
locking lever is in locked position, tab 62 is located to the left
of shoulder 64 to uncouple the intermittent member 56 from the
detent 30. A conventional garnish button assembly 76 is provided to
move the locking lever 66 between locked and unlocked
positions.
The coupling arrangement of this invention includes an inside
remote lever 78, FIGS. 3, 5, 6 and 7, pivoted at 80 on a lateral
flange 82 of the auxiliary frame 20. A shiftable rod 84 connects
the lever 78 with an inside remote handle 86, FIG. 1, which is
movable either counterclockwise or clockwise of its position shown
to thereby either respectively release the detent 30 or reconnect
the inside remote handle and the detent as will be described. A
detent release lever 88 is also pivoted to the flange 82 at 80 and
includes a foot 90 which overlies an extension or leg 92 of the
detent 30. A coupling lever 94 is coaxially pivoted at 80 with the
inside remote lever 78 and the detent release lever 88 and includes
a foot 96 which underlies the extension 92 of the detent 30.
A coupling link 98 has its upper end pivoted at 100 to the release
lever 88. The lower end of the link 98 mounts a headed pin 102
which is slidably received within a closed slot 104 of the coupling
lever 94. An overcenter type coil torsion spring 106 is hooked
between the coupling lever 94 and the flange 82 to selectively and
alternately bias the lever 94 between a coupled position, as shown
in FIGS. 3 and 7, wherein foot 96 engages the lower edge of
extension 92 of the detent 30 and an uncoupled position, shown in
FIG. 6, wherein a lateral tab 108 of the lever 94 engages the frame
20.
When the coupling lever 94 is in coupled position shown in FIGS. 3
and 7, and the inside remote handle 86 is rotated counterclockwise
as viewed in FIG. 1, a foot 110 of the lever 78 will engage the
shank of the pin 102 to shift link 98 upwardly as shown in FIG. 5.
This rotates the lever 88 clockwise as viewed in FIGS. 3 and 5. The
engagement of foot 90 of lever 88 with the extension 92 of detent
30 rotates the detent 30 clockwise as viewed in FIG. 2 and moves
the detent foot 34 out of engagement with the shoulder 36 to permit
the bolt 24 to move to unlatched position. Thus the door 12 can be
moved to open position.
Assume now that the door 12 is in open position and that the
occupant closes the door. As the door is closed, the engagement of
bolt 24 with the shank of the striker pin 27 will rotate the bolt
clockwise, as viewed in FIG. 2, from its unlatched position, not
shown, toward latched position. As the bolt rotates, the engagement
and disengagement of shoulder 37 of the bolt with the detent foot
34 will intermittently swing the detent 30 clockwise as viewed in
FIG. 2. Such intermittent movement of the detent will move the
extension 92 downwardly as viewed in FIGS. 3 and 7. The engagement
of the extension with the foot 96 of lever 94 will swing the lever
clockwise of its FIG. 3 position. This will move spring 106
overcenter as tab 108 engages frame 20 to position the lever 94 as
shown in FIG. 6. As lever 94 moves to this position, the camming
action of slot 104 on pin 102 moves pin 102 downwardly of slot 104
and rotates link 88 clockwise to position the pin out of the path
of the foot 110 of the remote lever 78. Accordingly, the inside
remote handle 86 is automatically disconnected from the detent each
time that the door is closed without requiring that the operator
perform any conscious effort other than closing the door.
When the door is in closed position and an occupant thereafter
desires to leave the vehicle, he first rotates the inside remote
handle 86 slightly clockwise as viewed in FIG. 1. With reference to
FIG. 6, this clockwise movement of the remote handle will result in
counterclockwise movement of the lever 78 to engage a lateral tab
112 of the remote lever with the foot 96 of the lever 94. This
rotates the lever 94 counterclockwise from its FIG. 6 position to
its FIG. 3 position as spring 106 moves overcenter and foot 96
engages extension 92. Pin 102 is again located in the path of the
remote lever foot 110. A tab 114 of lever 88 engages flange 82 and
locates the lever 88 against clockwise movement when lever 98 moves
counterclockwise. Thereafter, upon counterclockwise movement of the
remote handle, the detent will be moved out of engagement with the
bolt as previously described.
Thus, this invention provides an improved door lock wherein the
inside remote handle is automatically disconnected from the detent
each time that the door is closed and is selectively reconnected by
a slight movement of the remote handle in a direction opposite the
normal direction of movement required for release of the
detent.
* * * * *