U.S. patent number 3,628,216 [Application Number 05/051,482] was granted by the patent office on 1971-12-21 for articulated door hinge.
This patent grant is currently assigned to Ford Motor Company. Invention is credited to Charles L. Savell.
United States Patent |
3,628,216 |
Savell |
December 21, 1971 |
ARTICULATED DOOR HINGE
Abstract
A door hinging system for supporting a door on a vehicle body
for movement between closed and opened positions or opened and
closed positions, movement in either opening or closing direction
including in sequence a partially opened position at which a
transfer of movement from one hinge axis to another occurs. For
example, the sequence of movements in opening direction comprises a
first movement about a longitudinal axis so that the door attains a
partially opened outwardly tilted position relative to the vehicle
body opening, the degree of outward tilt being determined by an
extensible control element. Upon the proper outwardly tilted
attitude being reached, upper and lower hinge pintles become
axially aligned and provide a hinge axis about which the door is
swingable in a conventional manner, as about a substantially
vertical hinge axis, to an opened position permitting ingress to or
egress from the vehicle interior. Movement from opened to closed
position of the door occurs in reverse sequence.
Inventors: |
Savell; Charles L. (Warren,
MI) |
Assignee: |
Ford Motor Company (Dearborn,
MI)
|
Family
ID: |
21971570 |
Appl.
No.: |
05/051,482 |
Filed: |
July 1, 1970 |
Current U.S.
Class: |
16/287; 16/367;
49/247 |
Current CPC
Class: |
E05D
3/10 (20130101); E05Y 2900/531 (20130101); Y10T
16/53832 (20150115); Y10T 16/5472 (20150115) |
Current International
Class: |
E05D
3/00 (20060101); E05D 3/10 (20060101); E05d
003/10 () |
Field of
Search: |
;16/163,164,165,167
;49/246-249 ;296/144-150 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
Primary Examiner: Zugel; Francis K.
Assistant Examiner: Aschenbrenner; P. A.
Claims
I claim:
1. A door hinging system for supporting a door on a vehicle body
for sequential opening movement from a closed position to a
partially opened outwardly tilted position and then to a
substantially vertical fully opened position, closing movement of
the door occurring in reverse sequence,
the hinging system comprising vertically spaced lower and upper
hinge devices:
the lower hinge device being a double-leaf hinge having one leaf
secured to the door and the other leaf supported on a
longitudinally extending pivot means mounted on the vehicle
body,
the double-leaf hinge having a pintle the pivot axis of which lies
in a plane vertically intersecting the pivot axis of the
longitudinally extending pivot means;
the upper hinge device being a double-leaf hinge having a first
leaf supported at one end on a pivot member mounted on and
extending longitudinally of the door and its other end coupled by a
pintle to one end of its second leaf,
the other end of the second leaf being pivotally connected by a
pivot means to one end of an elongated member the other end of
which is pivotally supported on a longitudinally extending pivot
means mounted on the vehicle body,
the second leaf and elongated member being foldable about the pivot
means common thereto and forming a link adapted to be in folded
condition when the vehicle door is in closed position,
the door upon first being moved from closed position being
restricted by the foldable link, as the latter unfolds, to movement
about the pivot axis of the longitudinally extending pivot means on
which the lower hinge device is supported,
the link in extended condition positioning the door in a partially
opened outwardly tilted attitude,
the respective pintles of the lower and upper hinge devices
attaining in the partially opened outwardly tilted attitude of the
door substantially axial alignment thereby providing a hinge axis
about which the door is swingable to opened position.
2. A door hinging system according to claim 1 in which:
the pivot axes of the upper and lower hinge device pintles lie in
parallel planes.
3. A door hinging system according to claim 2 in which:
the upper and lower hinge device pintles lie in axially skewed
relationship to each other in any condition of the foldable link
other than in extended condition,
the skewed relationship of the pintles preventing swinging movement
of the door about the pintles in any attitude other than the
partially opened outwardly tilted attitude corresponding to fully
extended condition of the foldable link.
4. A door hinging system according to claim 3, in which:
a counterbalance spring is coupled to the hinge leaf and elongated
member forming the foldable link,
the counterbalance spring urging the foldable link toward folded
condition and the door from partially opened outwardly tilted
attitude toward closed position.
5. A door hinging system according to claim 3, in which:
the pivot axes of the pivot means supporting the lower hinge device
on the vehicle body, the pivot member supporting the upper hinge
device on the vehicle door, the pivot means connecting the upper
hinge device to the elongated member, and the pivot means
supporting the elongated member on the vehicle body are parallel to
each other in fully closed position of the door and remain in this
relationship during movement of the door to its partially opened
outwardly tilted position.
6. A door hinging system according to claim 1, in which:
the pivot axes of the pivot means supporting the other leaf of the
lower hinge device on the vehicle body, the pivot member supporting
the upper hinge device on the vehicle door, the pivot means
connecting the upper hinge device to the elongated member, and the
pivot means supporting the elongated member on the vehicle body are
parallel to each other in fully closed position of the door and
remain in this relationship during movement of the door to its
partially opened outwardly tilted position.
7. A door hinging system according to claim 1, in which:
a counterbalance spring is coupled to the hinge leaf and elongated
member forming the foldable link,
the counterbalance spring urging the foldable link toward folded
condition and counterbalancing the weight of the door as the latter
is moved from closed to partially opened outwardly tilted
attitude.
8. Door hinge mechanism supporting a door for movement into and out
of a substantially vertical side opening in a vehicle body,
the hinge mechanism comprising:
a lower hinge device supporting the lower end of the door on the
body for mutually exclusive swinging movement either about a
horizontal pivot axis or about a pivot axis lying in a plane
vertically intersecting the horizontal pivot axis;
an upper hinge device having a plurality of hinge members,
a first one of the hinge members being pivotally coupled at one of
its ends to the vehicle body and at its other end to one end of a
second one of the hinge members with both pivot axes substantially
paralleling the horizontal pivot axis of the lower hinge
device,
the other end of said second hinge member being pivotally coupled
to one end of a third hinge member with the pivot axis lying in a
plane vertically intersecting the horizontal pivot axes of the
first and second hinge members,
the third hinge member being pivotally coupled at its other end to
the door with the pivot axis being substantially horizontal,
the first and second hinge members forming a link foldable in door
closed position and extendable to a position constraining movement
of the upper portion of the door out of the body opening upon the
door being swung about the horizontal pivot axis of the lower hinge
device,
the pivot axis of the second and third members in constrained open
position of the upper portion of the door being vertically aligned
with the second mentioned pivot axis of the lower hinge device to
provide a hinge axis for conventional swinging door movement
relative to the body opening.
9. A door hinging system according to claim 8, in which:
the horizontal pivot axis of the lower hinge device, the horizontal
pivot axis of the upper hinge device on the vehicle door, the pivot
axis of the upper hinge device first and second hinge members, and
the pivot axis of the first hinge member on the vehicle body
maintain parallel relationship to each other during movement of the
door from fully closed position to its partially opened outwardly
tilted position.
10. A door hinging system according to claim 9 in which:
the pivot axes of the upper and lower hinge devices that lie in the
planes vertically intersecting the horizontal pivot axes are
defined by pintles that lie in axially skewed relationship to each
other in any condition of the foldable link other than in extended
condition,
the skewed relationship of the pintles preventing vertical swinging
movement of the door in any attitude other than partially opened
outwardly tilted attitude corresponding to fully extended condition
of the foldable link.
11. A door hinging system according to claim 10, in which:
a counterbalance spring is coupled to the upper hinge device first
and second hinge members forming the foldable link,
the counterbalance spring urging the foldable link toward folded
condition and counterbalancing the weight of the door as the latter
is moved from closed to partially opened outwardly tilted
attitude.
12. Door hinging system for supporting a door on a vehicle body for
sequential movement from a closed position to a partially opened
outwardly tilted position and then to a substantially vertically
opened position permitting ingress to or egress from the vehicle
body interior,
the hinging system comprising:
a lower hinge device comprising a pair of hinge members one of
which is pivotally supported on the vehicle body for swinging
movement about a horizontal pivot axis and the other of which is
fixed to the door,
the hinge members being pivotally connected to each other by a
pintle providing a pivot axis lying in a plane vertically
intersecting the horizontal pivot axis of the one hinge member;
an upper hinge device having a plurality of hinge members
articulated for movement in a plurality of directions,
a first pair of the articulated hinge members being pivotally
connected to form an extensible control element supported at one
end on the vehicle body on a pivot means the axis of which
substantially parallels the horizontal pivot axis of the lower
hinge device,
a third of the articulated hinge members being pivotally coupled at
one end to the door on pivot means the axis which extends in a
substantially horizontal direction,
the third hinge member being pivotally connected by a pintle to the
other end of the control element,
the pintle providing a pivot axis lying in a plane vertically
intersecting the horizontal pivot axis of the lower hinge
device;
the door upon initially being moved from closed position being
constrained by the control element of the upper hinge device to
swinging movement about the horizontal pivot axis of the lower
hinge device to a position in which the door is partially opened in
an outwardly tilted attitude to the extent permitted by the
extension of the control element,
the respective pintles of the lower and upper hinge devices being
transported as the door swings into the partially opened tilted
attitude from a skewed position relative to one another into
substantial axial alignment to provide a hinge axis about which the
door is swingable to opened position.
13. A door hinging system according to claim 12, in which:
the horizontal pivot axis of the lower hinge device, the horizontal
pivot axis of the pivot means coupling the upper hinge device third
hinge member to the vehicle door, the pivot axis of the pivot means
connecting the upper hinge device first pair of hinge members, and
the pivot axis of the pivot means supporting the extensible control
element on the vehicle body maintain parallel relationship to each
other during movement of the door from fully closed position to its
partially opened outwardly tilted position.
14. A door hinging system according to claim 13 in which:
the upper and lower hinge device pintles lie in axially skewed
relationship to each other in any condition of the extensible
control element other than extended condition of the latter,
the skewed relationship of the pintles preventing vertical swinging
movement of the door in any attitude other than partially opened
outwardly tilted attitude corresponding to fully extended condition
of the extensible control element.
15. A door hinging system according to claim 12, in which:
the upper and lower hinge device pintles lie in axially skewed
relationship to each other in any condition of the extensible
control element other than extended condition of the latter,
the skewed relationship of the pintles preventing vertical swinging
movement of the door in any attitude other than partially opened
outwardly tilted attitude corresponding to fully extended condition
of the extensible control element.
Description
BACKGROUND OF THE INVENTION
As was noted in U.S. Pat. No. 3,150,408, issued to Charles Belsky
on Sept. 29, 1964, vehicle body stylists long have indicated
interest in a vehicle body configuration in which the roof panel is
relatively narrow and the door and its contained door glass are
tilted or curved inwardly at the top at an extreme angle. An
extreme angle or tumblehome of the door and door window creates a
problem in hinging the door so that there is no diminution of the
entrance room into the vehicle body over that obtainable with
substantially flat vehicle doors and conventional hinging
systems.
If a vehicle door having extreme curvature and accompanying curved
or tilted door glass is hinged in a conventional manner, movement
of the door to an opened position with the window in a fully raised
position creates an awkward tunnellike entrance to the passenger
compartment. It is an object of the present invention to provide a
door hinging system operative to substantially diminish the tunnel
effect and thereby provide additional head clearance for a person
entering or leaving the vehicle.
SUMMARY OF THE INVENTION
A door hinging system constructed in accordance with this invention
is adapted to support a door on a vehicle body for sequential
opening movement from a closed position to a partially opened
outwardly tilted position and then to a substantially vertical
fully opened position, closing movement of the door occurring in
reverse sequence. The hinging system comprises vertically spaced
lower and upper hinge devices, the lower hinge device being a
double-leaf hinge having one leaf secured to the door and the other
leaf supported on a longitudinally extending pivot means mounted on
the vehicle body. This double-leaf hinge has a pintle the pivot
axis of which lies in a plane vertically intersecting the pivot
axis of the longitudinally extending pivot means.
The upper hinge device also comprises in part a double-leaf hinge
having its first leaf supported at one end on a pivot member
mounted on and extending longitudinally of the door and its other
end coupled by a pintle to one end of its second leaf. The other
end of the second leaf is pivotally connected by a pivot means to
one end of an elongated member the other end of which is pivotally
supported on a longitudinally extending pivot means mounted on the
vehicle body. The second leaf and the elongated member are foldable
about the pivot means common thereto to form a foldable link
adapted to be in folded condition when the vehicle door is in
closed position.
When the vehicle door is in closed position and movement to an
opened position is first initiated, the door is restricted by the
foldable link, as the latter unfolds, to movement about the pivot
axis of the longitudinally extending pivot means on which the lower
hinge device is supported. Upon the foldable link reaching a
predetermined extended condition, it controls or positions the door
in a partially opened forwardly tilted attitude. In the partially
opened outwardly tilted attitude of the door, the respective
pintles of the lower and upper hinge devices obtain substantially
axial alignment and provide a hinge axis about which the door is
swingable in a conventional manner to a fully opened position.
DESCRIPTION OF THE DRAWINGS
Other objects, advantages and features of the present invention
will be made more apparent as this description proceeds,
particularly when considered in conjunction with the accompanying
drawings wherein:
FIG. 1 is a semidiagrammatic view showing the hinge system
embodying the present invention related to a door and door framing
structure of a vehicle body;
FIG. 2 is a view in part similar to FIG. 1 illustrating the hinge
system as the components appear when the door is in partially
opened position;
FIG. 3 is a section view on the line 3--3 of FIG. 2; and
FIG. 4 is a section view on the line 4--4 of FIG. 2.
DETAILED DESCRIPTION OF THE INVENTION
Referring now in detail to the drawings, and more particularly to
FIGS. 1 and 2, there is shown a portion of a vehicle body floor pan
11 terminating in a box section sill 12 and a roof panel 13. The
floor pan 11 and roof panel 13 are joined at the side of the
vehicle body by a body pillar 14 having a relatively thick lower
cross section 15 from the belt line of the body down to the box
section of the sill 12 and a relatively thin upper frame section 16
from the belt line up to the roof panel 13. As will be readily
understood, the pillar 14 is the hinge pillar or the pillar to
which the vehicle door 17, shown primarily in dot and dash outline
in FIGS. 1 and 2, is hinged to act as a closure or door for a body
opening through which ingress to or egress from the vehicle body
interior or passenger compartment area is achieved.
It will be noted that the side edge 18 of the roof panel 13 is
located a substantial distance inboard of the outer side edge 19 of
floor pan 11. The vehicle door outer panel 21 and the vehicle door
window are pictured as having a radical degree of curvature or
tumblehome so that the upper edge 23 of the window will meet the
narrow roof panel edge 18. If the door 17 was hinged for swinging
movement about a substantially vertical or upright hinge axis,
movement of the door to an opened position with the window raised
would create a tunnel effect. That is, any one attempting to enter
or leave the vehicle body would have to duck under the upper edge
23 of the window. It therefor is considered desirable to move the
upper edge of the window outwardly away from the vehicle body
before the door is swung in a conventional manner about an upright
hinge axis.
As shown in FIG. 2, the upper edge 23 of the window preferably
should move to a point at least slightly outboard of the edge 24 of
the vehicle door so that when the door is swung open the person
avoiding interference with the lower edge of the door would also
clear the upper edge of the window. A hinging system according to
the present invention providing the desired movements of the
vehicle door 17 relative to the body opening comprises vertically
spaced lower and upper hinge devices, generally designated 25 and
26, respectively.
The lower hinge device 25 is a double-leaf hinge device having one
leaf 27 secured to the door and the other leaf 28 supported on a
longitudinally extending pivot stud or rivet 29. The leaf 28 is an
elongated member extending from a point adjacent the lower part of
the pillar 14 upwardly toward the leaf 27 of the lower hinge device
25, the leaf 27 being secured to the door 17 and located upwardly
and outwardly of the lower edge 24 of the door. The hinge leaf 27
is coupled to the hinge leaf 28 by a conventional hinge pintle 31,
the pivot axis of which lies in a plane vertically intersecting the
pivot axis of the pivot stud 29.
For purposes of definition, the pivot axis defined by the pivot
stud 29 is considered as extending substantially parallel to the
longitudinal axis of the vehicle body and also as being
substantially horizontal to the base plane on which the vehicle
rests, i.e., the ground surface.
The upper hinge device 26 also is basically a double-leaf hinge
having a first leaf 32 supported at one end on a pivot member 33
mounted on and extending longitudinally of the door and at its
other end coupled by a hinge pintle 34 to one end 35 of its second
leaf 36. The other end 37 of the second leaf 36 is pivotally
connected by a pivot or shoulder stud 38 to one end 39 of an
elongated member 41. The other end 42 of the member 41 is pivotally
supported on a longitudinally extending pivot stud 43 mounted on a
vehicle body pillar 14 proximate the upper end of the latter. As
best seen in FIG. 2, the leaf 36 and the elongated member 41 of the
upper hinge device form a foldable link which functions as an
extensible control link, as will be explained.
The relationship of the various pivot axes defined by the pivot
studs and pintles may be summarized as follows: The pivot axis of
the pivot stud 29 supporting the lower hinge 25 on the vehicle
body, the pivot axis of the pivot member 33 supporting or coupling
the upper hinge device 26 on the vehicle door, the pivot axis of
the pivot or shoulder stud 38 connecting the upper hinge device 26
to the elongated member 41, and the pivot axis of the pivot stud 43
supporting the elongated member 41 on the vehicle body are parallel
to each other in fully closed position of the vehicle door and
remain in this relationship during movement of the door to a
partially opened outwardly tilted position (see FIGS. 1 and 2).
It has been noted that the pivot axis of the hinge pintle 31 of the
lower hinge device 25 lies in a plane vertically intersecting the
pivot axis of the stud 29. Similarly, the pivot axis of the hinge
pintle 34 of the upper hinge device 26 lies in a plane vertically
intersecting the pivot axis of the pivot stud 43. The pivot axis of
the pintles 31 and 34, therefore lie in parallel planes and these
planes are coincident. As best seen in FIG. 1, the hinge pintles 31
and 34, although lying in coincident planes, are in axially skewed
relationship to each other in door closed position (see FIG. 1).
Stated in another way, the hinge pintles 31 and 34 are in axially
skewed relationship when the link formed by the hinge leaf 36 and
the elongated member 41 is in folded condition. The pintles remain
in this skewed relationship until the lower and upper hinge devices
reach the position shown in FIG. 2 upon opening movement of the
door. In the FIG. 2 relationship the pintles are axially aligned
and the door may be swung about the hinge axis 46 in a conventional
manner.
A counterbalance spring 44 is coupled to the hinge leaf 36 and the
elongated member 41 forming the foldable link which is considered a
part of the upper hinge device assembly.
OPERATION
Referring now to FIG. 1, the vehicle door 17 having a window 22 of
extreme curvature or tumblehome is shown in closed position.
Suitable latch mechanisms, one of which is diagrammatically
illustrated at 46, are located at front and rear edge walls of the
door to hold the door in latched position. Upon release of the
latch mechanisms the door may be pulled outwardly of the vehicle
body.
Upon the door being pulled outwardly, the leaf or link 28 of the
lower hinge device swings downwardly about the pivot stud 24 axis.
At the same time the foldable link consisting of the hinge leaf 36
and the elongated member 41 begins to unfold against the resistance
of the counterbalance spring 44. The skewed pintles 31 and 34
prevent any swinging movement of the door occurring during this
initial opening movement.
The hinge leaf 36 and the elongated member 41 thus may be
considered an extensible control member which functions to limit
the degree of outward tilt of the vehicle door. The outward tilt
movement is permitted to continue until the FIG. 2 position of the
door is reached. In this position the two pintles are aligned to
form a hinge axis 45 about which the door is swingable in a
conventional manner to permit ready access to the vehicle body
interior.
As soon as swinging movement about the hinge axis 45 begins, the
door cannot be pivoted inward at the top since such inward movement
of the door can only occur when the pivot axes of the pivot studs
or members 33, 38, 43 and 29 are aligned. Pivot 33 in any position
of door swing about the hinge axis 45 will be skewed thus
preventing inward pivotal movement.
During closing movement of the door the reverse sequence of
movements occurs. That is, as soon as pivot 33 comes into alignment
with pivots 38, 43 and 29, the door may be pushed bodily inwardly
about pivot 29. The hinge leaf 36 and elongated member 41 begin to
fold over or overlap. The pintles 31 and 34 move to a skewed
relationship relative to one another and the door cannot be swung
about the pintles.
Suitable stops, not shown, may be provided on the hinge members and
adjacent body members to control the extent of movement of the
various hinge device components.
It will be understood that the invention is not to be limited to
the exact construction shown and described, but that various
changes and modifications may be made without departing from the
spirit and scope of the invention as defined in the appended
claims.
* * * * *