U.S. patent number 3,868,836 [Application Number 05/447,447] was granted by the patent office on 1975-03-04 for deck lid latch and lock assembly.
This patent grant is currently assigned to Ford Motor Company. Invention is credited to Louis A. La Roche.
United States Patent |
3,868,836 |
La Roche |
March 4, 1975 |
DECK LID LATCH AND LOCK ASSEMBLY
Abstract
A deck lid latch and lock assembly having a latch mechanism and
a key operated lock mechanism for operating the latch mechanism
mounted, respectively, on inner and outer panels of the deck lid.
The inner and outer panels are connected by a bridging panel. The
bridging panel and the inner and outer panels form a pocket
receiving the latch and lock mechanisms. The latch and lock
mechanisms are spaced from one another and coupled by a coupling
means. The improvement comprises a bracket-shield mounted on the
bridging panel and supporting the inner end--the end within the
pocket-- of the lock mechanism. A first retention clip locks the
lock mechanism to the bracket-shield to resist twisting movement of
the lock mechanism relative to the outer panel and longitudinal
withdrawal of the lock mechanism from the bracket-shield and the
outer panel. A second retention clip also has interlocking
engagement with the lock mechanism and mainly assures sealing
between the lock mechanism and the outer surface of the outer
panel. The shield portion of the bracketshield prevents in-line
access to the latch mechanism by means of a tool used to punch a
hole adjacent the lock mechanism through the outer body panel.
Inventors: |
La Roche; Louis A.
(Cologne-Lindenthal, DT) |
Assignee: |
Ford Motor Company (Dearborn,
MI)
|
Family
ID: |
23776408 |
Appl.
No.: |
05/447,447 |
Filed: |
March 1, 1974 |
Current U.S.
Class: |
70/240;
70/370 |
Current CPC
Class: |
E05B
83/16 (20130101); Y10T 70/5903 (20150401); Y10T
70/7655 (20150401) |
Current International
Class: |
E05B
65/12 (20060101); E05B 65/19 (20060101); E05b
065/19 () |
Field of
Search: |
;70/240,370
;292/DIG.43 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Craig, Jr.; Albert G.
Attorney, Agent or Firm: Roethel; John J. Zerschling; Keith
L.
Claims
I claim:
1. A deck lid latch and lock assembly for a vehicle deck lid having
inner and outer spaced panels connected by a bridging panel forming
a pocket in which a latch mechanism and a lock mechanism are housed
in spaced relation to each other,
the latch mechanism being mounted on the inner panel with its latch
element projecting through an aperture in the bridging panel in a
keeper device engageable position,
the lock mechanism having an elongated and flanged housing at one
end,
the housing extending inwardly into the deck lid pocket through an
aperture in the outer panel to a depth permitted by abutment of its
flange with the outer surface of the outer panel,
a key cylinder mechanism mounted in the housing having at its outer
end a key receiving slot facing outwardly of the outer panel,
and coupling means operatively connecting the key cylinder
mechanism at its inner end to the latch mechanism within the deck
lid pocket,
wherein the improvement comprises:
a combination bracket-shield mounted on the bridging panel and
having an aperture through which the end of the lock mechanism
housing opposite its flanged end projects,
a first retention clip having interlocked engagement with the end
of the housing projecting through the bracket-shield,
the first retention clip engaging the lock mechanism to prevent
twisting movement of the housing relative to the outer panel and
having abutting relation to the bracket-shield to prevent
longitudinal withdrawal of the housing from the support bracket
aperture and the outer panel aperture,
and a second retention clip having inerlocked engagement with the
lock mechanism between the bracket-shield and the outer panel,
the second retention clip abutting the inner side of the outer
panel to provide seal pressure between the lock mechanism housing
flange and the outer surface of the outer panel.
2. A deck lid latch and lock assembly according to claim 1, in
which:
the bridging panel has a rectangular aperture therein,
and the bracket-shield has an elongated base portion straddling the
aperture beneath the bridging panel and an upstanding
support-shield portion extending through the bridging panel
aperture,
the upstanding support-shield portion containing the aperture
through which the lock mechanism housing projects.
3. A deck lid latch and lock assembly according to claim 2, in
which:
the support-shield portion extends to either side of the lock
mechanism a sufficient distance to prevent access to the latch
mechanism by a screwdriver through a hole punched through the outer
panel.
4. A deck lid latch and lock assembly according to claim 2, in
which:
the first retention clip has an elongated base portion straddling
the aperture beneath the bridging panel and an upstanding
bifurcated portion extending through the bridging panel aperture
straddling the lock mechanism.
5. A deck lid latch and lock assembly according to claim 4, in
which:
the support-shield portion extends to both sides of the lock
mechanism in position to block access to the latch by a screwdriver
through a hole punched through the outer panel.
6. A deck lid latch and lock assembly according to claim 5, in
which:
the retention clips are formed from spring steel.
Description
BACKGROUND OF THE INVENTION
Law enforcement agencies and automobile insurance companies have
been exerting pressure on the automobile manufacturers for improved
trunk or deck lid latch and lock assemblies that are more
theft-proof or theft-retardant than conventional production latch
and lock assemblies. In the conventional assembly, the lock
mechanism for actuating the latch mechanism is held in place on the
sheet metal outer panel of the deck lid by a spring retention clip.
It has been found to be a relatively simple matter either to drive
the lock mechanism through the sheet metal panel of the deck lid or
to use a slam puller tool to pull the lock mechanism out of the
sheet metal panel. With the lock mechanism displaced to leave a
hole in the deck lid panel, a long screwdriver-like tool may be
inserted through the hole to actuate the latch mechanism. Another
alternative is to first use the screwdriver-like tool to punch a
hole through the sheet metal alongside of the lock mechanism in
substantial alignment with the latch mechanism, next to displace
the shaft coupling the lock mechanism to the latch mechanism, and
then to actuate the latch mechanism by inserting the tool into the
latch mechanism lever slot vacated by the coupling shaft.
No matter which means of forced entry is used, an important
criteria as far as the would-be thief(s) is concerned is that it
should take no longer than five minutes to accomplish the break-in.
The risk of being caught in the act obviously greatly increases
with every moment spent on the break-in.
It is an object of the present invention to provide a deck lid
latch mechanism and lock mechanism assembly which is more
theft-proof than conventional assemblies.
SUMMARY OF THE INVENTION
The present invention relates to a deck lid latch and lock assembly
for a vehicle deck lid having inner and outer spaced panels
connected by a bridging panel forming a pocket in which a latch
mechanism and a lock mechanism are housed in spaced relation to
each other. The latch mechanism is mounted on the inner panel with
its latch element projecting through an aperture in the bridging
panel in a keeper device engageable position. The lock mechanism
has an elongated flanged housing at one end which is mounted so as
to extend inwardly into the deck lid pocket through an aperture in
the outer panel to a depth permitted by abutment of its flange with
the outer surface of the outer panel.
A key cylinder mechanism is mounted in the housing having at its
outer end the key receiving slot facing outwardly of the outer
panel. With the proper key inserted in the key cylinder mechanism,
the latter may be rotated. The rotation is transmittable by a
coupling means operatively connecting the key cylinder mechanism at
its inner end to the latch mechanism within the deck lid
pocket.
The improvement to the foregoing structure embodying the present
invention comprises a combination bracket-shield that is mounted on
the bridging panel and has an aperture through which the end of the
lock mechanism housing opposite its flanged end projects.
A first retention clip has interlocked engagement with the end of
the housing projecting through the bracket-shield. The first
retention clip is positioned to prevent twisting movement of the
housing relative to the outer panel and longitudinal withdrawal of
the latter from the support bracket aperture and the outer panel
aperture. A second retention clip has interlocked engagement with
the lock mechanism housing between the bracket-shield and the outer
panel, the second retention clip abutting the inner side of the
outer panel to provide seal pressure between the lock mechanism
housing flange and the outer surface of the outer panel.
Preferably, the bracket-shield has a shield portion adapted to
extend to either side of the lock mechanism housing a sufficient
distance to prevent access to the latch mechanism by a screwdriver
inserted through a hole punched through the outer panel.
DESCRIPTION OF THE DRAWINGS
Further features and advantages of the present invention will be
made more apparent as this description proceeds, reference being
had to the accompanying drawings, wherein:
FIG. 1 is a fragmentary perspective view of a portion of a vehicle
deck lid having a latch mechanism and lock mechanism assembly as
used during recent model years;
FIG. 2 is a view in part similar to FIG. 1 illustrating the latch
mechanism and lock mechanism assembly embodying the present
invention;
FIG. 3 is an exploded view of the latch mechanism and lock
mechanism assembly components; and
FIG. 4 is a vertical section substantially on the line 4--4 of FIG.
2.
DETAILED DESCRIPTION OF THE INVENTION
Referring now to the drawings and more particularly to FIG. 1,
there is shown a fragmentary portion of a vehicle deck lid
structure generally designated 10. The deck lid structure comprises
an outer panel 11 having a depending flange portion 12. The outer
panel 11 overlies an inner panel 13 having a depending flange 14 in
spaced, substantially parallel, relationship to the depending outer
flange portion 12. The outer and inner panel flanges 12 and 14 are
bridged by a substantially horizontally stepped bridging panel 15.
The panel 15 is shown as an integral extension of the inner panel
13 and as having a pinch weld flange connection at 16 to the outer
panel flange 12 at the lower edge of the latter. The panel flanges
12 and 14 and the bridging panel 15 form a pocket 17 closed at the
top by the horizontal portion of the outer panel 11.
The latch mechanism, generally designated 18, and the lock
mechanism, generally designated 19, are housed in the pocket 17.
The latch mechanism 18 is bolted to a right angle reinforcing plate
20 welded to the flange 14 of the inner panel 13. The latch element
21 of the latch mechanism 18 projects through an aperture 22 in the
reinforcing plate 20 and the bridging panel 15 in position to
engage a keeper device (not shown).
The lock mechanism 19 has a longitudinally extending housing 23
having a flange 24 at one end. The housing 23 extends inwardly into
the deck lid pocket through an aperture 25 (see FIG. 4) in the
outer panel flange 12.
A key cylinder mechanism 26 is mounted in the housing 23 and has at
its outer end a key receiving slot 27 facing outwardly of the outer
panel flange 12. The key receiving slot 27 is adapted to receive a
key 28. The inner end of the key cylinder mechanism 26 is coupled
to the latch mechanism by an extension shaft 29. The shaft 29 is
held on the inner end of the key cylinder mechanism by a flexible
spring coupling 31 and is received in a pivot rivet 32 coupled to
the actuating lever (not visible) of the latch mechanism 18.
The locking mechanism 19 is held on the panel flange 12 by a spring
clip (not visible in FIG. 1) of the type shown in FIG. 3. In
current production latch and lock assemblies, the locking mechanism
is supported and stabilized by a free standing L-shaped bracket 33,
the base 34 of which is mounted on the bridging panel 15. The
housing 23 of the lock mechanism 19 is cradled intermediate its
ends in an aperture 35 of the bracket 33.
In the current production assembly both retention and sealing of
the lock mechanism housing flange 24 to the panel 12 sheet metal
are achieved through a single retention clip, such as the clip 36
of FIG. 3. The strength of the retention, i.e., the resistance
against pushing or pulling the lock mechanism 23 through the panel
sheet metal, depends on the vehicle body sheet metal strength.
Referring not to FIGS. 2 to 4, inclusive, an important feature of
the improved latch mechanism and lock mechanism assembly embodying
the present invention is a dual-function bracket-shield 37. As best
seen in FIG. 4, the bracket-shield 37 is substantially L-shaped
having a upstanding leg 38 and a base leg 39 embossed at their
intersection to provide stiffener ribs 41. The bridging panel 15 is
formed with an elongated rectangular aperture 42 and the
bracket-shield is mounted with its base leg 39 positioned beneath
the panel 15 and its upstanding leg 38 projecting upwardly into the
pocket 17. The base leg 39 of the bracket-shield 37 is shown held
by bolts 43 to the panel 15, but it may be welded or otherwise
secured.
A substantially L-shaped spring clip 44 coacts with the
bracket-shield to retain the lock mechanism 19a in position. The
spring clip 44 as best seen in FIG. 3 has a base portion 45 adapted
to stradle the aperture 42 in the panel 15 and to be fastened as by
bolts 46 to the panel. The upstanding leg 47 terminates in a
bifurcated retention portion or spaced retention legs 48.
The lock mechanism 19a housing, herein designated 49, has a pair of
diametrically opposed, outwardly extending, lugs 51 on a
cylindrical body portion. The lugs abut the opposing surface of the
bracket upstanding leg 38 as the inner end of key cylinder 52 is
inserted through a centrally located aperture 53 in the
bracket-shield leg 38.
The key cylinder inner end is also provided with a pair of
diametrically spaced lugs 54 adapted to abut the spaced legs 48 on
the leg 47 of the spring clip 44. When the clip 44 is in place, the
key cylinder 52 and thereby the housing 49 cannot be withdrawn from
the bracket-shield 37 and the panel 12.
The relationship of the retention legs 48 of the clip 44 to flats
(not visible) on a shoulder portion of the housing 49 inhibits
twisting of the lock mechanism 49 in the panel 15.
The second spring clip, previously identified at 36, is a
bifurcated clip having leg portions 55 adapted to straddle the
housing 49 immediately beneath the panel 12. It retains the lock
cylinder relative to the outer skin or panel 12 and assures a tight
seal between the flange 24 and the outer surface of the panel 12.
It does not have, as in the conventional production latch and lock
assembly as shown in FIG. 1, the additional function of resisting
pulling or punching forces exerted on the lock mechanism. It will
be noted that the upstanding leg 38 of the bracket-shield 37
appears to be longer than necessary. Its length is such that any
attempt to punch a hole through the panel 12 substantially in
alignment with the pivot rivet 32 of the latch mechanism 18 will be
blocked by the leg 38 acting as a shield.
The foregoing construction and arrangement will noticeably slow
down any attempt at forceable entry into the luggage compartment.
The latch and lock mechanism assembly resists punching or pulling
of the lock mechanism to dislodge it from the panel 12 or the
punching of a hole in the panel within the area in which a tool
could be aligned with the latch mechanism actuator to cause release
of the latch mechanism.
It is to be understood that this invention is not limited to the
exact construction illustrated and described above, but that
various changes and modifications may be made without departing
from the spirit and scope of the invention as defined by the
following claims:
* * * * *