U.S. patent application number 15/585364 was filed with the patent office on 2018-11-08 for cargo securing mechanism for a trunk door of a vehicle.
This patent application is currently assigned to Ford Global Technologies, LLC. The applicant listed for this patent is Ford Global Technologies, LLC. Invention is credited to Victoria Leigh Schein, Reid Worthen.
Application Number | 20180319342 15/585364 |
Document ID | / |
Family ID | 62637071 |
Filed Date | 2018-11-08 |
United States Patent
Application |
20180319342 |
Kind Code |
A1 |
Worthen; Reid ; et
al. |
November 8, 2018 |
CARGO SECURING MECHANISM FOR A TRUNK DOOR OF A VEHICLE
Abstract
A vehicle trunk door includes a door panel. A hinge is coupled
to the door panel for rotating the door panel between a plurality
of rotational positions. A motor is coupled to the hinge, wherein
the motor applies a rotational force to the hinge, wherein the
rotational force biases the door panel toward a closed position.
When cargo is disposed within a trunk aperture, the door panel is
biased against the cargo to at least partially secure the cargo
within the trunk aperture.
Inventors: |
Worthen; Reid; (Dearborn,
MI) ; Schein; Victoria Leigh; (Dearborn, MI) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Ford Global Technologies, LLC |
Dearborn |
MI |
US |
|
|
Assignee: |
Ford Global Technologies,
LLC
Dearborn
MI
|
Family ID: |
62637071 |
Appl. No.: |
15/585364 |
Filed: |
May 3, 2017 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
E05F 15/63 20150115;
B62D 25/105 20130101; E05F 15/619 20150115; B60R 11/00 20130101;
B60J 5/101 20130101; B60R 2011/0071 20130101; E05F 3/20 20130101;
E05Y 2900/548 20130101; B60R 2011/0036 20130101; E05D 11/1028
20130101; B60R 5/041 20130101; E05C 17/003 20130101; B60R 5/006
20130101; B60R 2011/0085 20130101; E05C 17/38 20130101; B60R
2011/0092 20130101 |
International
Class: |
B60R 5/00 20060101
B60R005/00; B60J 5/10 20060101 B60J005/10; B60R 5/04 20060101
B60R005/04; B60R 11/00 20060101 B60R011/00; E05F 3/20 20060101
E05F003/20; E05F 15/63 20060101 E05F015/63; E05F 15/619 20060101
E05F015/619; E05D 11/10 20060101 E05D011/10 |
Claims
1. A vehicle trunk door comprising: a door panel; a hinge coupled
to the door panel for rotating the door panel between a plurality
of rotational positions; a motor coupled to the hinge, wherein the
motor applies a rotational force to the hinge, wherein the
rotational force biases the door panel toward a closed position;
and wherein when cargo is disposed within a trunk aperture, the
door panel is biased against the cargo to at least partially secure
the cargo within the trunk aperture.
2. The vehicle trunk door of claim 1, wherein the motor operates to
apply a consistent biasing force against the cargo.
3. The vehicle trunk door of claim 2, wherein upon shifting of the
cargo to define a shifted cargo, the motor operates the door panel
to maintain the consistent biasing force against the shifted
cargo.
4. The vehicle trunk door of claim 3, wherein after the consistent
biasing force is established, a braking mechanism maintains the
rotational position of the door panel to apply the consistent
biasing force.
5. The vehicle trunk door of claim 4, wherein the braking mechanism
includes a caliper that applies a braking force against a portion
of the hinge.
6. The vehicle trunk door of claim 4, wherein when the cargo
defines the shifted cargo such that the shifted cargo is free of
the consistent biasing force, the braking mechanism operates to a
release position and the motor operates to reestablish the
consistent biasing force.
7. The vehicle trunk door of claim 4, wherein the braking mechanism
includes a protrusion that engages at least one recess of a
plurality of recesses defined within a portion of the hinge, and
wherein engagement of the protrusion with the at least one recess
maintains the consistent biasing force against the cargo.
8. The vehicle trunk door of claim 4, wherein the braking mechanism
operates to prevent movement of the door panel toward a fully-open
position, and wherein when the cargo defines the shifted cargo, the
motor can be selectively operated to reestablish the consistent
biasing force while the braking mechanism is engaged with the
hinge.
9. The vehicle trunk door of claim 8, wherein the braking mechanism
includes a one-way ratcheting mechanism, and wherein engagement of
the braking mechanism defines selective operation of the door panel
toward the closed position to maintain the consistent biasing force
and further defines an absence of movement toward the fully-open
position until the braking mechanism is disengaged.
10. The vehicle trunk door of claim 1, wherein the motor includes a
gearing mechanism that meshes with a portion of the hinge.
11. The vehicle trunk door of claim 1, wherein the motor includes a
piston-operated actuator.
12. The vehicle trunk door of claim 4, wherein the hinge includes
an arcuate arm that slidably engages a hinge channel, and wherein
the motor and the braking mechanism are disposed proximate the
hinge channel to selectively engage the arcuate arm.
13. A vehicle comprising: a trunk door having a hinge; a motor that
operates the trunk door toward a closed position to define an
intermediate rotational position that is distal from the closed
position; and a braking mechanism that selectively secures the
trunk door in the intermediate rotational position.
14. The vehicle of claim 13, wherein the intermediate rotational
position is further defined by the trunk door engaging an
obstructing cargo positioned within an aperture of the trunk door
and the trunk door applying a consistent biasing force against the
obstructing cargo, wherein the obstructing cargo prevents the trunk
door from reaching the closed position.
15. The vehicle of claim 14, wherein when a position of the
obstructing cargo within the aperture is modified, the obstructing
cargo defines a shifted cargo that is free of the consistent
biasing force, and wherein when the obstructing cargo defines the
shifted cargo, the motor operates to define a shifted intermediate
rotational position that reestablishes the consistent biasing force
against the shifted cargo.
16. The vehicle of claim 15, wherein operation of the motor to
operate the trunk door from the intermediate rotational position to
the shifted intermediate rotational position is performed without
disengaging the braking mechanism.
17. The vehicle of claim 13, wherein the motor and the braking
mechanism selectively engage the hinge for the trunk door.
18. The vehicle of claim 13, wherein the braking mechanism includes
an operable caliper that selectively secures the hinge in the
intermediate rotational position.
19. A method for securing shifted cargo with in a vehicle trunk,
the method comprising steps of: operating a motor to move a trunk
door into engagement with an obstructing cargo placed within an
aperture for the trunk door; activating a braking mechanism to
secure the trunk door in an intermediate rotational position,
wherein the intermediate rotational position defines a consistent
biasing force exerted by the trunk door against the obstructing
cargo; maintaining the consistent biasing force as the obstructing
cargo defines a shifted position, wherein the motor activates to
redefine the intermediate rotational position based upon the
shifted position of the obstructing cargo; deactivating the motor
and the braking mechanism to remove the consistent biasing force;
and operating the trunk door to a fully-open position.
20. The method of claim 19, wherein the step of maintaining the
consistent biasing force is performed while the braking mechanism
is activated, wherein the braking mechanism in an active state is
adapted to prevent operation of the trunk door in a direction of
the fully-open position, and wherein the braking mechanism in the
active state allows for operation of the motor to redefine the
intermediate rotational position to be closer to a closed position.
Description
FIELD OF THE INVENTION
[0001] The present invention generally relates to trunk doors for
vehicles, and more specifically, a trunk door having a powered
hinge that applies a downward force onto a piece of cargo disposed
within a trunk aperture of the vehicle.
BACKGROUND OF THE INVENTION
[0002] Various automobiles include trunks having rotationally
operable trunk doors that operate to provide access to a trunk
compartment of a vehicle. Certain trunks include limited cargo
space, such that larger cargo items disposed within the trunk
compartment may extend through a trunk aperture so that the trunk
door cannot fully close. In these situations, the trunk door cannot
latch and the cargo and the trunk door each need to be secured to
prevent unwanted movement during operation of the vehicle.
SUMMARY OF THE INVENTION
[0003] According to one aspect of the present invention, a vehicle
trunk door includes a door panel. A hinge is coupled to the door
panel for rotating the door panel between a plurality of rotational
positions. A motor is coupled to the hinge, wherein the motor
applies a rotational force to the hinge. The rotational force
biases the door panel toward a closed position. When cargo is
disposed within a trunk aperture, the door panel is biased against
the cargo to at least partially secure the cargo within the trunk
aperture.
[0004] Embodiments of this aspect of the invention can include any
one or combination of the following features: [0005] the motor
operates to apply a consistent biasing force against the cargo
[0006] upon shifting of the cargo to define a shifted cargo, the
motor operates the door panel to maintain the consistent biasing
force against the shifted cargo [0007] after the consistent biasing
force is established, a braking mechanism maintains the rotational
position of the door panel to apply the consistent biasing force
[0008] the braking mechanism includes a caliper that applies a
braking force against a portion of the hinge [0009] when the cargo
defines the shifted cargo such that the shifted cargo is free of
the consistent biasing force, the braking mechanism operates to a
release position and the motor operates to reestablish the
consistent biasing force. [0010] the braking mechanism includes a
protrusion that engages at least one recess of a plurality of
recesses defined within a portion of the hinge, and wherein
engagement of the protrusion with the at least one recess maintains
the consistent biasing force against the cargo [0011] the braking
mechanism operates to prevent movement of the door panel toward a
fully-open position, and wherein when the cargo defines the shifted
cargo, the motor can be selectively operated to reestablish the
consistent biasing force while the braking mechanism is engaged
with the hinge [0012] the braking mechanism includes a one-way
ratcheting mechanism, and wherein engagement of the braking
mechanism defines selective operation of the door panel toward the
closed position to maintain the consistent biasing force and
further defines an absence of movement toward the fully-open
position until the braking mechanism is disengaged [0013] the motor
includes a gearing mechanism that meshes with a portion of the
hinge [0014] the motor includes a piston-operated actuator [0015]
the hinge includes an arcuate arm that slidably engages a hinge
channel, and wherein the motor and the braking mechanism are
disposed proximate the hinge channel to selectively engage the
arcuate arm
[0016] According to another aspect of the present invention, a
vehicle includes a trunk door having a hinge. A motor operates the
trunk door toward a closed position to define an intermediate
rotational position that is distal from the closed position. A
braking mechanism selectively secures the trunk door in the
intermediate rotational position.
[0017] Embodiments of this aspect of the invention can include any
one or combination of the following features: [0018] the
intermediate rotational position is further defined by the trunk
door engaging an obstructing cargo positioned within an aperture of
the trunk door and the trunk door applying a consistent biasing
force against the obstructing cargo, wherein the obstructing cargo
prevents the trunk door from reaching the closed position [0019]
when a position of the obstructing cargo within the aperture is
modified, the obstructing cargo defines a shifted cargo that is
free of the consistent biasing force, and wherein when the
obstructing cargo defines the shifted cargo, the motor operates to
define a shifted intermediate rotational position that
reestablishes the consistent biasing force against the shifted
cargo [0020] operation of the motor to operate the trunk door from
the intermediate rotational position to the shifted intermediate
rotational position is performed without disengaging the braking
mechanism [0021] the motor and the braking mechanism selectively
engage the hinge for the trunk door [0022] the braking mechanism
includes an operable caliper that selectively secures the hinge in
the intermediate rotational position
[0023] According to another aspect of the present invention, a
method for securing shifted cargo within a vehicle trunk includes
operating a motor to move a trunk door into engagement with an
obstruction placed within an aperture for the trunk door. A braking
mechanism is activated to secure the trunk door in an intermediate
rotational position, wherein the intermediate rotational position
defines a consistent biasing force exerted by the trunk door
against the obstruction. The consistent biasing force is maintained
as the obstruction defines a shifted position, wherein the motor
activates to redefine the intermediate rotational position based
upon the shifted position of the obstruction. The motor and the
braking mechanism are deactivated to remove the consistent biasing
force and the trunk door is operated to a fully-open position.
[0024] Embodiments of this aspect of the invention can include any
one or combination of the following features: [0025] the step of
maintaining the consistent biasing force is performed while the
braking mechanism is activated, wherein the braking mechanism in an
active state is adapted to prevent operation of the trunk door in a
direction of the fully-open position, and wherein the braking
mechanism in the active state allows for operation of the motor to
redefine the intermediate rotational position to be closer to a
closed position
[0026] These and other aspects, objects, and features of the
present invention will be understood and appreciated by those
skilled in the art upon studying the following specification,
claims, and appended drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
[0027] In the drawings:
[0028] FIG. 1 is a rear perspective view of a vehicle incorporating
an aspect of the powered trunk door shown in a closed position;
[0029] FIG. 2 is a rear elevational view of the vehicle of FIG. 1
showing the powered trunk door in a fully-open position;
[0030] FIG. 3 is a rear perspective view of a vehicle trunk showing
an aspect of the powered trunk door in a fully-open position;
[0031] FIG. 4 is a cross-sectional view of the vehicle of FIG. 1
taken along line IV-IV;
[0032] FIG. 5 is a cross-sectional view of the vehicle of FIG. 2
taken along line V-V;
[0033] FIG. 6 is a cross-sectional view of the vehicle trunk of
FIG. 4 showing the powered trunk door in a first intermediate
position and engaging the cargo item within the trunk aperture;
[0034] FIG. 7 is a cross-sectional view of vehicle trunk of FIG. 6
showing the powered trunk door in a second intermediate position
after the cargo has shifted and the powered trunk door is
readjusted to engage the shifted cargo;
[0035] FIG. 8 is a schematic cross-sectional view of a powered
trunk door incorporating an aspect of a motor and braking mechanism
for adjusting the rotational position of the powered trunk
door;
[0036] FIG. 9 is a front elevational view of an aspect of the
braking mechanism for the powered trunk door;
[0037] FIG. 10 is a partial side elevational view of an aspect of
the hinge for the powered trunk door showing a plurality of
recesses for engaging and disengaging the braking mechanism;
[0038] FIG. 11 is a front elevational view of the braking mechanism
of FIG. 10 and showing operation of the braking mechanism in
conjunction with the plurality of recesses;
[0039] FIG. 12 is a schematic diagram illustrating operation of an
aspect of the braking mechanism for the powered trunk door;
[0040] FIG. 13 is a schematic diagram illustrating operation of an
aspect of the braking mechanism for the powered trunk door;
[0041] FIG. 14 is a schematic illustration of the powered trunk
door incorporating an electric motor and a pivoting actuator;
[0042] FIG. 15 is a schematic diagram illustrating an aspect of the
powered trunk door incorporating a hydraulic piston for moving the
powered trunk door between the plurality of rotational
positions;
[0043] FIG. 16 is a schematic illustration of a braking mechanism
for the powered trunk door illustrating a slotted rail having a
plurality of recesses and incorporating an actuator pin that
engages the recesses and sets the position of the powered trunk
door;
[0044] FIG. 17 is a schematic diagram illustrating an aspect of the
braking mechanism incorporating a caliper that engages a portion of
the hinge for the powered trunk door to set the position of the
powered trunk door in one of the plurality of rotational positions;
and
[0045] FIG. 18 is a schematic flow diagram illustrating a method
for securing the shifted cargo within the vehicle trunk.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0046] For purposes of description herein, the terms "upper,"
"lower," "right," "left," "rear," "front," "vertical,"
"horizontal," and derivatives thereof shall relate to the invention
as oriented in FIG. 1. However, it is to be understood that the
invention may assume various alternative orientations, except where
expressly specified to the contrary. It is also to be understood
that the specific devices and processes illustrated in the attached
drawings, and described in the following specification are simply
exemplary embodiments of the inventive concepts defined in the
appended claims. Hence, specific dimensions and other physical
characteristics relating to the embodiments disclosed herein are
not to be considered as limiting, unless the claims expressly state
otherwise.
[0047] As shown in FIGS. 1-9, reference numeral 10 generally refers
to a powered trunk door for a vehicle 12 that is operable between a
plurality of rotational positions 14 including a fully-open
position 16, a closed position 18, and a plurality of intermediate
rotational positions 20. According to various embodiments of the
device, the powered trunk door 10 can include a door panel 22 and a
hinge 24 coupled to the door panel 22 for rotating the door panel
22 between the plurality of rotational positions 14. A motor 26 is
coupled to the hinge 24. The motor 26 applies a rotational force 28
to the hinge 24. In this manner, the rotational force 28 applied by
the motor 26 biases the door panel 22 toward the closed position
18. When an obstruction, such as cargo 30, luggage, equipment and
other such obstructing cargo 30 are placed within the trunk 32 and
disposed within a trunk aperture 34, the door panel 22 is biased
against the obstructing cargo 30 to at least partially secure the
obstructing cargo 30 within the trunk aperture 34. Accordingly, the
motor 26 of the powered trunk door 10 operates to apply a
consistent biasing force 36 against the obstructing cargo 30
disposed within the trunk aperture 34.
[0048] Referring again to FIGS. 1-9, during operation of the
vehicle 12 where the obstructing cargo 30 is disposed within a
trunk aperture 34, certain items of the obstructing cargo 30 may
shift as a result of vibrations, bumps and other vertical and
lateral movements experienced by the vehicle 12. These movements
can cause the obstructing cargo 30, such as lumber, boxes, or other
similar cargo 30 to shift within the trunk 32 and within the trunk
aperture 34 to define a shifted cargo 50. As the cargo 30 shifts to
define the shifted cargo 50, the shifted cargo 50 is typically at a
lower position within the trunk 32. Accordingly, the shifted cargo
50 may become disengaged with a portion of the door panel 22 as the
cargo 30 defines the shifted cargo 50. In response to this
redefined position of the shifted cargo 50, the motor 26 operates
the door panel 22 to maintain the consistent biasing force 36 of
the door panel 22 of the powered trunk door 10 against the shifted
cargo 50.
[0049] While the term "consistent biasing force 36" is used herein,
the consistent biasing force 36 may also be a substantially
consistent biasing force as the motion of the vehicle 12 and the
cargo 30 may vary the exact pressure applied against the cargo
30.
[0050] It is also contemplated that certain cargo 30 may shift in
an upward direction such that the position of the door panel 22 may
cause an increased biasing force to be placed upon the shifted
cargo 50. In such a condition, the motor 26 may operate in a
generally upward direction to decrease the biasing force exerted on
the cargo 30 to define the consistent biasing force 36 that is
placed upon the cargo 30 to assist in securing the cargo 30 within
the trunk aperture 34 between the trunk aperture 34 and the lower
edge 52 of the powered trunk door 10.
[0051] Referring again to FIGS. 2-9, the powered trunk door 10 can
also include a braking mechanism 60 that assists the motor 26 in
maintaining the door panel 22 in a particular intermediate
rotational position 20 of the plurality of rotational positions 14.
Accordingly, once the consistent biasing force 36 is established
through operation of the motor 26, the braking mechanism 60 can be
engaged to selectively and temporarily secure the door panel 22 and
maintain the intermediate rotational position 20 of the door panel
22 in applying the consistent biasing force 36 against the cargo 30
or the shifted cargo 50. Through the use of the powered trunk door
10, the motor 26 and braking mechanism 60 cooperate to set and
selectively secure the intermediate rotational position 20 of the
door panel 22 to maintain the consistent biasing force 36 downward
and onto the cargo 30 disposed within the trunk aperture 34. The
motor 26 can adjust the rotational position of the door panel 22
and also apply the consistent biasing force 36 against the cargo 30
or other obstruction. Once the consistent biasing force 36 is
established against the cargo 30, the braking mechanism 60 engages
to maintain the position of the door panel 22 and also maintain the
application of the consistent biasing force 36 against the cargo
30. Once the braking mechanism 60 is engaged, the motor 26 may
become disengaged or, at minimum, may be adjusted to apply less of
a downward force 38 against the door panel 22 such that the motor
26 is not overexerted during operation of the powered trunk door
10.
[0052] Referring again to FIGS. 2-9, the motor 26 for the powered
trunk door 10 can include a gearing mechanism 70 that meshes with
the gearing recesses 72 that are defined within a portion of the
hinge 24 for the powered trunk door 10. In such an embodiment, the
hinge 24 for the powered trunk door 10 can include an arcuate hinge
bar 74, being in the form of an arcuate arm of the hinge 24, that
slidably rotates within a hinge channel 76 defined proximate a
frame 78 of the vehicle 12. In such an embodiment, the arcuate
hinge bar 74 slides within the hinge channel 76 such that the door
panel 22 rotates about a distally located pivot point 80. Where
obstructing cargo 30 is disposed within the trunk aperture 34, the
motor 26 can be engaged to operate the powered trunk door 10 in a
generally downward position to engage the obstructing cargo 30 and
apply the consistent biasing force 36 against the obstructing cargo
30. The geared motor 26 includes a drive gear 90 with cogs 88 that
engage the gearing recesses 72 of the arcuate hinge bar 74 to
slidably rotate the arcuate hinge bar 74 in a generally inward
direction 92 into the hinge channel 76. The operation of the drive
gear 90 and the arcuate hinge bar 74 in the inward direction 92
applies a downward force 38 against the door panel 22 to move the
door panel 22 toward the closed position 18. When the door panel 22
engages the obstructing cargo 30 disposed within the trunk aperture
34, various sensors 94 disposed proximate the motor 26 determine
the amount of downward force 38 that is applied against the cargo
30 within the trunk aperture 34. Such sensors 94 can include, but
are not limited to, torque sensors, voltage sensors, pressure
sensors within the door panel 22, combinations thereof, and other
similar sensors 94 that can be used to apply the consistent biasing
force 36 against the obstruction.
[0053] To assist in establishing and maintaining the consistent
biasing force 36, the door panel 22 can include a bumper member 100
that is positioned at a lower edge 52 of the door panel 22. In such
an embodiment, the bumper member 100 serves to engage the cargo 30
and also prevents damage to the door panel 22 during operation of
the powered trunk door 10. In various embodiments, the bumper
member 100 of the door panel 22 can also include one or more
sensors that measure the amount of downward force 38 that is
exerted by the door panel 22 against the cargo 30. The sensors 94,
such as pressure sensors, can determine whether the consistent
biasing force 36 has been achieved.
[0054] Referring again to FIGS. 4-9, the powered trunk door 10 can
also include the braking mechanism 60, where the braking mechanism
60 may include a braking caliper 110 having opposing first and
second pads 112, 114 that engage opposing braking surfaces 116 of
the hinge bar 74. When the braking mechanism 60 is engaged, the
first and second pads 112, 114 of the calipers 110 operate toward
one another to engage the hinge bar 74 and apply a braking force
118 to the hinge bar 74 to prevent operation of the hinge bar 74
out of a secured position 120. The braking mechanism 60 can be
disengaged when the powered trunk door 10 is disengaged to remove
the cargo 30, or when the cargo 30 defines a shifted cargo 50. When
the cargo 30 defines a shifted cargo 50, the consistent biasing
force 36 may no longer be applied to the cargo 30 and the motor 26
can be reengaged to adjust the intermediate rotational position 20
of the door panel 22 to reestablish the consistent biasing force
36. Once the consistent biasing force 36 is reestablished, the
braking mechanism 60 can be reengaged to define a new secured
position 122 of the door panel 22 and into the shifted intermediate
rotational position 190.
[0055] According to various aspects of the device as exemplified in
FIGS. 12 and 13, the braking mechanism 60 can include an operable
set of calipers 110 that applies the braking force 118 and also
applies a generally downward biasing force 130 against the hinge
bar 74. In such an embodiment, as the braking mechanism 60 engages,
the braking force 118 is applied to the secured position 120 such
that the hinge bar 74 is secured with respect to the braking
mechanism 60. The braking mechanism 60 can then apply the downward
biasing force 130 to move the door panel 22 into the appropriate
position to apply the consistent biasing force 36. In such an
embodiment, the motor 26 is adapted to operate the hinge bar 74 a
particular distance to define a ready position 132 such that the
door panel 22 engages the cargo 30 but does not supply enough force
to define the consistent biasing force 36. Once the motor 26 places
the door panel 22 in this ready position 132 that is distal from
the desired intermediate rotational position 20, the braking
mechanism 60 engages and applies first the braking force 118 to
define the secured position 120, and then the downward biasing
force 130 to move the door panel 22 from the ready position 132 and
into the intermediate rotational position 20 to define the
consistent biasing force 36. In this embodiment, the braking
mechanism 60 can include a secondary motor 26 that includes a cam,
and/or a linear actuator 136 that can move and secure the door
panel 22 in the intermediate rotational position 20 and hold the
door panel 22 in this position for an extended period of time. In
various aspects of the device, as the calipers 110 engage the hinge
bar 74, inward compression of the first and second pads 112, 114 in
applying the braking force 118 utilizes the rotating pads 134, such
as a wheel or cam, to apply a simultaneous downward biasing force
130, such that as the calipers 110 move inward, the rotating pads
134 controls the path of the calipers 110 to move inward and
simultaneously downward to apply both the braking force 118 and the
downward biasing force 130. The calipers 110 may be operated
through a cam, a hydraulic mechanism, a screw drive, scissor drive,
servo motor, piston mechanism, combinations thereof and other
similar operating mechanisms that can apply a high torque force and
also maintain a particular force for an extended period of
time.
[0056] According to various aspects of the device, the braking
mechanism 60 may include an additional motor 26 for operating a
mechanical lock 142 that physically engages the hinge bar 74 and/or
other portions of the powered trunk door 10. In this manner, the
motor 26 and, potentially, the motors can cooperate to apply the
consistent biasing force 36. Once in this position, the mechanical
lock 142 of the braking mechanism 60 can engage the hinge bar 74
such that no motors 26 are used to maintain the position of the
hinge bar 74 and the door panel 22 in the intermediate rotational
position 20 to provide the consistent biasing force 36.
[0057] Referring again to FIGS. 1-11, during operation of the
vehicle 12, as the obstructing cargo 30 is disposed within the
trunk aperture 34, the cargo 30 may define the shifted cargo 50,
such that the shifted cargo 50 moves away from the lower edge 52 of
the door panel 22 and is free of the consistent biasing force 36.
In such a situation, the braking mechanism 60 may operate to a
release position 140 and the motor 26 operates to reestablish the
consistent biasing force 36. In this manner, when the braking
mechanism 60 defines the release position 140, the motor 26
reengages to move the door panel 22 to an appropriate position in
engagement with the cargo 30 and to reestablish the consistent
biasing force 36.
[0058] Referring again to FIGS. 4-11, the braking mechanism 60 can
include a mechanical lock 142 in the form of a protrusion 150 that
engages at least one recess 152 of a plurality of recesses 152
defined within a portion of the hinge bar 74. In this manner,
engagement of the protrusion 150 with the at least one recess 152
maintains the intermediate rotational position 20 of the door panel
22 and also the consistent biasing force 36 against the cargo
30.
[0059] According to various aspects of the device, the braking
mechanism 60 is adapted to prevent movement of the door panel 22
toward the fully-open position 16. In certain embodiments, the
braking mechanism 60 may be a one-way braking mechanism that allows
for downward movement 160 of the door panel 22, but simultaneously
prevents upward movement 162 of the door panel 22 toward the
fully-open position 16. In such an embodiment, when the cargo 30
defines the shifted cargo 50, the shifted cargo 50 may be lower in
height than the original cargo position. When the shifted cargo 50
is lower, the consistent biasing force 36 may be no longer present.
Through the use of the one-way braking mechanism 170, the motor 26
can reengage and move the door panel 22 toward the closed position
18 and reestablish the consistent biasing force 36 while the
braking mechanism 60 is still engaged with the hinge bar 74. In
such an embodiment, it is contemplated that the caliper 110 for the
braking mechanism 60 can be substantially arcuate in shape, such as
in the form of a cam or wheel as exemplified in FIG. 13. In this
embodiment, the cam or wheel may be able to rotate in a single
direction to allow downward movement 160 of the hinge bar 74 and,
in turn, downward movement 160 of the door panel 22 toward the
closed position 18 to reengage the cargo 30 and reestablish the
consistent biasing force 36. Such a one-way braking mechanism 170
may be in the form of a one-way ratcheting mechanism such that the
braking mechanism 60 defines selective operation of the door panel
22 toward a closed position 18. This selective operation of the
door panel 22 can be in the form of only downward movement 160. The
one-way braking mechanism 170 of the braking mechanism 60
selectively prevents upward movement 162 of the door panel 22 and
also allows for the operation of the motor 26 to move the door
panel 22 to reestablish the consistent biasing force 36. In this
manner, the one-way braking mechanism 170 further defines an
absence of movement toward the fully-open position 16 until the
braking mechanism 60 is disengaged to the release position 140.
[0060] Referring now to FIGS. 4-15, the motor 26 can include a
gearing mechanism 70 that meshes with a portion of the hinge 24. In
various aspects of the device, the motor 26 can include a
piston-operated actuator 180. In certain aspects of the device, a
combination of operating mechanisms can be used to manipulate the
hinge bar 74 to define the plurality of rotational positions 14 of
the door panel 22.
[0061] It is contemplated that the hinge 24 of the powered trunk
door 10 can include a hinge arm that is operated by the motor 26
and the braking mechanism 60. According to various aspects of the
device, the hinge 24 of the powered trunk door 10 can also include
other types of hinges 24 and hinge mechanisms that may be found in
conventional trunk doors.
[0062] Referring again to FIGS. 1-17, the vehicle 12 can include
the powered trunk door 10 having the hinge 24. The motor 26 serves
to operate the powered trunk door 10 toward a closed position 18 to
define the intermediate rotational position 20 that is distal from
the closed position 18 of the powered trunk door 10. A braking
mechanism 60 is included that selectively secures the powered trunk
door 10 in the intermediate rotational position 20. As discussed
previously, the intermediate rotational position 20 is a desired
position that engages the cargo 30 and defines the consistent
biasing force 36 that is exerted against the obstructing cargo 30
to assist in securing the cargo 30 within the trunk aperture 34.
Accordingly, the intermediate rotational position 20 is further
defined by the powered trunk door 10 in engaging an obstructing
cargo 30 positioned within the trunk aperture 34 of the powered
trunk door 10 and the powered trunk door 10 applying the consistent
biasing force 36 against the obstruction. In this manner, the
obstructing cargo 30 prevents the powered trunk door 10 from
reaching the closed position 18. The motor 26 and braking mechanism
60 of the powered trunk door 10 cooperate to prevent generally
upward movement 162 of the cargo 30 within the trunk aperture
34.
[0063] As exemplified in FIGS. 4-11, when the position of the
obstructing cargo 30 within the aperture is modified, the cargo 30
defines a shifted cargo 50 that is free of a consistent biasing
force 36. When the cargo 30 defines this shifted cargo 50 or
shifted obstruction, the motor 26 operates or is reengaged to
define a shifted intermediate rotational position 190 of the
powered trunk door 10 that reestablishes the consistent biasing
force 36 against the shifted cargo 50. This movement of the powered
trunk door 10 from the intermediate rotational position 20 to the
shifted intermediate rotational position 190 may be performed
without operating the braking mechanism 60 to the release position
140. Such an embodiment may be possible where the braking mechanism
60 includes a one-way braking mechanism 170 such as the one-way
ratcheting mechanism as disclosed herein.
[0064] Referring now to FIGS. 16 and 17, the braking mechanism 60
can include a mechanism that selectively engages the hinge 24 for
the powered trunk door 10. In various aspects of the device, the
braking mechanism 60 can include an operable caliper 110 that
selectively secures the hinge 24 in the intermediate rotational
position 20. As discussed previously, the braking mechanism 60 may
be used in conjunction with the motor 26 to apply the consistent
biasing force 36 by applying an at least partial rotation to the
powered trunk door 10 for achieving consistent biasing force 36.
The braking mechanism 60 can include calipers 110 and can also
include a slotted rail 200 that uses an actuating pin that engages
the slot rail for securing the position of the powered trunk door
10.
[0065] Referring now to FIGS. 1-18, having described various
aspects of the powered trunk door 10, a method 400 is disclosed for
securing a shifted cargo 50 within a vehicle trunk 32. According to
the method 400, cargo 30 can be placed within a trunk 32 and at
least partially occupied within a trunk aperture 34. Once located
therein, a motor 26 can be operated to move the powered trunk door
10 into engagement with the obstructing cargo 30 placed within the
trunk aperture 34 for the powered trunk door 10 (step 402). Once
the powered trunk door 10 engages the cargo 30, a braking mechanism
60 can be activated to secure the powered trunk door 10 in an
intermediate rotational position 20 (step 404). As discussed above,
the intermediate rotational position 20 defines a consistent
biasing force 36 that is exerted by the powered trunk door 10
against the cargo 30. The consistent biasing force 36 can be
achieved through operation of the motor 26 by itself or can be
achieved through simultaneous operation of the motor 26 and
activating the braking mechanism 60. Alternatively, the consistent
biasing force 36 may be achieved by the motor 26 moving the powered
trunk door 10 to a certain position and, subsequently, the braking
mechanism 60 can be activated to secure the braking mechanism 60
against the hinge bar 74 and also rotationally operate the door
panel 22 into the intermediate rotational position 20. The
consistent biasing force 36 is then maintained as the cargo 30
defines a position of the shifted cargo 50 (step 406).
[0066] Referring again to FIGS. 1-18, when the obstructing cargo 30
defines the position of the shifted cargo 50, the motor 26 and/or
the braking mechanism 60 activates to redefine the intermediate
rotational position 20 based upon the position of the shifted cargo
50. The new position of the shifted cargo 50 may be at a position
lower than the original position of the cargo 30. Accordingly, the
consistent biasing force 36 may be temporarily removed and the
motor 26 and/or the braking mechanism 60 are activated and operated
to move the door panel 22 back into engagement with the shifted
cargo 50 to redefine the consistent biasing force 36 against the
shifted cargo 50. When the consistent biasing force 36 is no longer
needed and the cargo 30 or the shifted cargo 50 is to be removed,
the motor 26 and the braking mechanism 60 can be deactivated to
remove the consistent biasing force 36 (step 408). After
deactivating the braking mechanism, the powered trunk door 10 can
be operated to the fully-open position 16 and the cargo 30 can be
removed (step 410).
[0067] It is contemplated that the motor 26 and the braking
mechanism 60 may be activated only when the consistent biasing
force 36 is needed. Where no obstructing cargo 30 is present within
the trunk aperture 34 of the powered trunk door 10, the motor 26
and the braking mechanism 60 may remain idle and a separate
operating mechanism may be used for serving as a door closer for
the powered trunk door 10 or door operating mechanism for the
powered trunk door 10. It is also contemplated that the motor 26
for the powered trunk door 10 may also serve as the motor 26 for
operating the powered trunk door 10 whether an obstruction is
present in the aperture or not.
[0068] It is contemplated that the step 406 of maintaining the
consistent biasing force 36 may be performed while the braking
mechanism 60 is activated. When the braking mechanism 60 is in an
active state 210 and engaging the hinge bar 74, the braking
mechanism 60 can be adapted to prevent operation of the powered
trunk door 10 in the direction of the fully-open position 16. In
such an embodiment, it is contemplated that the braking mechanism
60 in the active state 210 simultaneously allows for operation of
the motor 26 to move the door panel 22 toward the closed position
18 to redefine the intermediate rotational position 20 to be closer
to the closed position 18 in order to reengage the cargo 30 and
reestablish the consistent biasing force 36.
[0069] According to various aspects of the device, it is
contemplated that the powered trunk door 10 can include a motor 26
that is disposed proximate the hinge 24 of the powered trunk door
10. The motor 26 can also be disposed proximate a lower edge 52 of
the powered trunk door 10 such that the motor 26 can operate a
belt-type mechanism 54 (shown in dashed line in FIG. 3) that
engages with the trunk aperture 34. In such an embodiment, the
motor 26 can operate the belt-type mechanism 54 to move the powered
trunk door 10 in a generally downward movement 160 in order to
apply the consistent biasing force 36.
[0070] According to various aspects of the device, the motor 26 and
braking mechanism 60 can be used within various doors of a vehicle
12. Such doors can include, but are not limited to, trunk doors,
rear hatches, cargo doors, and other similar cargo-access doors for
various vehicles 12.
[0071] It is to be understood that variations and modifications can
be made on the aforementioned structure without departing from the
concepts of the present invention, and further it is to be
understood that such concepts are intended to be covered by the
following claims unless these claims by their language expressly
state otherwise.
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