Hinge assembly for a vehicle door

Information

  • Patent Grant
  • 6681448
  • Patent Number
    6,681,448
  • Date Filed
    Friday, February 22, 2002
    22 years ago
  • Date Issued
    Tuesday, January 27, 2004
    21 years ago
Abstract
A vehicle door hinge assembly that includes a body bracket, a door bracket, and, an interconnecting door bracket carrier. The door bracket carrier and the door bracket shift in unison from a fully closed position to an intermediate open position. The door bracket pivots in a swinging motion about the door bracket carrier from the intermediate open position to a fully open position. The hinge assembly further includes a motion restriction mechanism that restricts the door bracket from pivoting relative to the door bracket carrier when the door bracket carrier is not in the intermediate open position. Additionally, the motion restriction mechanism restricts the linkage assembly from moving relative to the body bracket until the door bracket has returned to the intermediate open position. A door attached to the hinge assembly moves first in a shifting motion and then in a swinging motion. The shifting motion moves the door laterally and outwardly relative to a vehicle body.
Description




FIELD OF THE INVENTION




The present invention relates to a door hinge assembly for installation in a vehicle for attaching a vehicle door to a vehicle body.




BACKGROUND OF THE INVENTION




Certain types of vehicles have adjacent doors that open in opposite handed manners with respect to one another. These adjacent doors typically latch to one another, or to an intermediate pillar of the vehicle body, for securement in their closed positions. In known designs, each of these doors swing about a pivot defined by a hinge assembly. However, in these known designs, the swing arcs of the doors overlap because of the thickness of the doors. The overlap of the swing arcs occurs because each of the doors are panel constructions having a substantial thickness. As a result, one of the doors must be opened prior to the other door. Similarly, when closing the doors, one door must be closed prior to the other door.




An example of a vehicle with a door configuration of this type is a pickup truck with an extended cab having adjacent front and rear doors on at least one side of the vehicle. In this configuration, the front door must be opened before (and closed after) the rear door. This is because the front doors are typically used more frequently that the rear doors. A similar door configuration is often used in vehicles such as vans or sport utility vehicles that have side by side cargo doors at the rear of the vehicle. Here again, a first door must typically be opened before the other door can be opened.




This door configuration is undesirable for several reasons. Passengers that are seated in the rear seat of a pickup truck are not able to open the rear doors of the cab, unless the adjacent front door has been opened first. This is inconvenient and may require the person sitting in the rear seat to somehow reach the door handle of the front door. Only after having first opened the front door can the person sitting in the rear seat open the rear door. Putting cargo behind the front seat of the pickup also requires the user to first open the front door, then open the rear door, and finally place the cargo in the desired location. Obviously in certain circumstances, this extra effort is inconvenient, especially while handling large or awkward articles. Likewise, if a vehicle user needs to place an infant in a child seat behind the front seat of the vehicle, the vehicle user must perform the extra steps required to open the rear door while holding the infant.




SUMMARY OF THE INVENTION




The present invention solves the problems addressed above by providing an improved hinge assembly for attaching a vehicle door to a vehicle body in covering relation to a door opening in the vehicle body. The hinge assembly comprises a body bracket configured to be mounted to the vehicle body, a door bracket configured to be attached to the vehicle door, and, a door bracket carrier having the door bracket pivotally mounted thereon. The door bracket carrier is movably mounted to the body bracket such that, when the door bracket is attached to the vehicle door and the body bracket is attached to the vehicle body, the door bracket and the vehicle door to which the door bracket is attached move relative to the vehicle body and the body bracket between a fully closed position and a fully opened position through a multiple phase movement. The multiple phase movement comprises a shifting phase and a swinging phase. In the shifting phase, the door bracket carrier, the door bracket, and the door to which the door bracket is attached move in a shifting manner from the fully closed position to an intermediate open position. In the swinging phase, the door bracket and the door to which the door bracket is attached move in a swinging manner relative to vehicle body between the intermediate position and the fully open position.




The hinge assembly includes motion restriction structure that restricts movement of the door bracket relative to the body bracket such that the door bracket is fixed with respect to the door bracket carrier during the shifting phase. During the shifting phase, movement of the door bracket and the door to which the door bracket is attached is restricted to the shifting manner. Additionally, the motion restriction structure restricts movement of the door bracket carrier with respect to said body bracket during the swinging phase. During the swinging phase, movement of the door bracket and the door to which the door bracket is attached is restricted to the swinging manner, thereby preventing movement of the door in the shifting manner from occurring prior to or during movement of the door in the swinging manner.




Objects, features and advantages of the present invention will become apparent from the following detailed description, the accompanying drawings, and the appended claims.











BREIF DESCRIPTION OF THE DRAWINGS





FIG. 1

is a top view showing the hinge assembly of the invention attached to a vehicle body and a vehicle door. The hinge assembly and the vehicle door are shown in the fully closed position.





FIG. 2

is a top view showing the hinge assembly of the invention attached to a vehicle body and a vehicle door. The hinge assembly and the vehicle door are shown in the intermediate open position.





FIG. 3

is a top view showing the hinge assembly of the invention attached to a vehicle body and a vehicle door. The hinge assembly and the vehicle door are shown in the fully open position.





FIG. 4

is a top view showing the hinge assembly of the invention attached to a vehicle body and a vehicle door. The hinge assembly and the vehicle door are shown pivoted past what is typically the fully open position.





FIG. 5

is a top view of the hinge assembly of the invention showing the hinge assembly in the fully closed position and showing a first lock mechanism in a locked position.





FIG. 6

is a top view of the hinge assembly of the invention showing the hinge assembly in the intermediate open position and showing the first lock mechanism in an unlocked position.





FIG. 7

is a top view of the hinge assembly of the invention showing the hinge assembly in the fully open position and showing the first lock mechanism in an unlocked position.





FIG. 8

is a perspective view showing the hinge assembly in the fully open position and showing a second lock mechanism in the locked position.





FIG. 9

is a perspective view showing the hinge assembly in the intermediate open position and showing the second lock mechanism in an unlocked position.





FIG. 10

is a perspective view showing two hinge assemblies disposed on a door in a typical configuration.





FIG. 11

is a top view showing the hinge assembly of the invention attached to a first vehicle door. The modes of movement of the first vehicle door are shown from the fully closed position to the intermediate open position, and from the intermediate open position to the fully open position. An adjacent vehicle door is also shown. The movement of the first door relative to the movement of the adjacent door is also shown.











DETAILED DESCRIPTION OF A PREFERRED EMBODIMENT OF THE INVENTION





FIG. 1

shows a hinge assembly


100


which includes: a body bracket


110


; a first link arm


120


pivotally attached to the body bracket


110


; a second link arm


130


also pivotally attached to the body bracket


110


; a door bracket carrier


140


pivotally attached to the first link arm


120


and the second link arm


130


; and, a door bracket


150


pivotally attached to the door bracket carrier


140


.




As will be shown in the following figures, the door bracket carrier


140


moves relative to the body bracket


110


along a path of movement defined by the geometry of a four bar linkage defined by the body bracket


110


, the first and second link arms


120


and


130


, and the door bracket carrier


140


. Four pivot pins


160


,


162


,


164


, and


166


facilitate the relative movement of the door bracket carrier


140


with respect to the body bracket


110


. The path of the door bracket carrier


140


is generally parallel to the door bracket


150


. The door bracket


150


pivots about the door bracket carrier


140


at pivot pin


166


. The door bracket carrier


140


and the link arms


120


and


130


comprise a linkage assembly that interconnects the door bracket


150


to the body bracket


110


. Although in the illustrated embodiment, the linkage assembly is designed as a four bar linkage, the linkage assembly may have any other suitable design.





FIG. 1

also shows the hinge assembly


100


disposed in a typical application where the body bracket


110


is attached to a vehicle body


10


, and the door bracket


150


is attached to a door


12


. The portion of the vehicle body


10


to which the body bracket


110


is attached is typically the B-pillar. An adjacent vehicle door


14


is also shown. The adjacent vehicle door


14


is hingedly connected to the A-pillar of the vehicle body, but the illustrated structure


14


could also be a fixed part of the vehicle body, such as a B-pillar, or other body component. The body


10


, door


12


, and adjacent vehicle door


14


are all shown in cross section.

FIG. 1

shows the hinge assembly


100


and, accordingly, the door


12


in the fully closed position. The vehicle doors may latch to the B-pillars, or alternatively, the doors may latch to one another. Latches are not shown in this figure.





FIG. 2

shows the hinge assembly


100


and the door


12


supported thereby after the door


12


has been moved to an intermediate open position.

FIG. 2

shows the position of the door bracket carrier


140


after the door


12


has moved to its intermediate open position. The door bracket carrier


140


has moved relative to the body bracket


110


through the pivoting movement of the first and second link arms


120


and


130


which pivot substantially in the same plane. During this movement, the door bracket


150


has been locked to the door bracket carrier


140


. Accordingly, the door bracket


150


in the intermediate open position has not moved relative to the door bracket carrier


140


but has moved in unison with the door bracket carrier


140


. The manner in which this locking is accomplished will be described herein below.




This movement of the hinge assembly


110


as the door


12


moves to the intermediate open position results in a gap that separates the door


12


from the adjacent vehicle door


14


. Specifically, the gap separates the lateral edge


12




a


of the door


12


from the lateral edge


14




a


of the vehicle door


14


. As can be appreciated from comparing

FIGS. 1 and 2

, the mode of movement of the hinge assembly


110


from the fully closed condition to the intermediate open position is a shifting type of motion. During the shifting motion, the door moves both outwardly in relation to the door opening and away from the adjacent door


14


. In the specific embodiment shown in

FIGS. 1 and 2

, this shifting movement is a curvilinear movement. Any other type of movement, however, may be envisioned.





FIG. 3

shows the door


12


moved to what is typically the fully open position. The door


12


and the door bracket


150


to which the door


12


is attached have pivoted relative to the door bracket carrier


140


from the intermediate open position, which was previously shown in

FIGS. 1 and 2

, to the fully open position shown in FIG.


3


. The door bracket


150


pivots about the pivot pin


166


. The door bracket carrier


140


has remained in the same position it was in when the door


12


was in the intermediate open position, as was previously shown in FIG.


2


. This results from the door bracket carrier being locked from movement relative to the body bracket


110


while the door bracket


150


moves from the intermediate open position to the fully open position.




Also shown in

FIG. 3

is a door check arm


180


which includes a stop detent


182


, which is shown engaging a roller


13




a


disposed on the door


12


. The door check arm


180


further includes a door check detent


181


. The door check arm


180


moves with respect to the door


12


between spring biased rollers


13




a


and


13




b


disposed on the door


12


. Alternatively, the rollers


13




a


and


13




b


may be incorporated into the door bracket


150


. The door check arm


180


is attached to the door bracket carrier


140


. Fixed pins or other structures may be used in place of rollers


13




a


,


13




b.







FIG. 4

shows the door bracket


150


after the door


12


has pivoted beyond the typical fully open position shown in FIG.


3


. The door check arm


180


has been released from the pin


13




a


, which has allowed the door


12


to pivot further. This unlikely situation may arise if breakage occurred on the door check arm


180


or one of the rollers


13




a


and


13




b


. As is also shown in this figure, the door bracket


150


includes a stop tab


152


, which is shown abutting a stop surface


142


on the door bracket carrier


140


. The stop tab


152


stops the pivoting of the door


12


, which ensures that damage to the door


12


or the body of the vehicle will not occur. This also will prevent the door


12


from hitting the vehicle body in the event the installing technician fails to properly attach the check arm


180


.





FIGS. 5 and 6

show the operation of a first lock mechanism


200


which locks the door bracket


150


to the door bracket carrier


140


. The first lock mechanism


200


and a second lock mechanism comprise a motion restriction mechanism for the hinge assembly. The first lock mechanism


200


secures the door bracket


150


from pivoting relative to the door bracket carrier


140


until the door bracket carrier


140


has moved to the intermediate open position.

FIG. 5

shows the hinge assembly


100


in the fully closed position.

FIG. 5

further shows the first lock mechanism


200


in the locked position.

FIG. 6

shows the hinge assembly


100


in the intermediate open position after the door bracket carrier


140


has moved to the intermediate open position.

FIG. 6

further shows the first lock mechanism


200


in the unlocked position.




The first lock mechanism


200


comprises an elongated curved tab


202


that is attached to the door bracket


150


and extends outwardly from the door bracket. The first lock mechanism


200


also includes a roller


210


rotatably connected to the door bracket carrier


140


through the first link arm


120


on pivot pin


162


. The elongated curved surface of the tab


202


comprises a first contact surface and the outer cylindrical surface of the roller


210


comprises a second contact surface utilized in the first lock mechanism


200


.





FIG. 6

shows how the movement of the door bracket carrier


140


results in the relative movement of the roller


210


in relation to the tab


202


. The relative movement of the roller


210


relative to the tab


202


occurs as a result of the roller being directly attached to the first link arm


120


, and only indirectly attached to the door bracket carrier


140


through the pivot connection


162


. The roller


210


moves relative to the tab


202


from the locked position, when the hinge assembly is at the fully closed position (FIG.


5


), to an unlocked position when the hinge assembly is at the intermediate open position (FIG.


6


). The outside cylindrical surface of the roller


210


rolls on the elongated curved surface of the tab


202


.





FIG. 5

shows the door bracket carrier


140


in the fully closed position and the tab


202


and roller


210


contacting such that the roller


210


restricts movement of the tab


202


in a blocking manner. Accordingly, the door bracket


150


is locked from moving independently of the door bracket carrier


140


. The roller


210


contacts the tab


202


and restricts the independent movement of tab in all positions of the door bracket carrier


140


until the door bracket carrier is in the intermediate open position.





FIG. 6

shows the unlocked position of the first lock mechanism


200


. The door bracket carrier


140


has pivoted about the body bracket


110


to the intermediate open position. The roller


210


has moved relative to the tab


202


such that the tab distal end


204


can move past the roller


210


(i.e., the first surface is disengaged from the second surface). As the tab


202


is no longer restricted from movement by the roller


210


, the tab


202


can move independently relative to the roller


210


, and the door bracket


150


can pivot about the door bracket carrier


140


.





FIG. 7

shows the door bracket


150


after having pivoted about the door bracket carrier


140


. The door bracket


150


pivots about the door bracket carrier


140


from the intermediate open position (

FIG. 6

) to the fully open position (FIG.


7


).





FIGS. 8 and 9

show a second lock mechanism


250


that locks the door bracket carrier


140


to the body bracket


110


. As was previously mentioned, the second lock mechanism is part of the motion restriction mechanism of the hinge assembly. The second lock mechanism


250


restricts the door bracket carrier


140


from pivoting relative to the body bracket


110


as the door


12


moves between the intermediate and fully open positions.

FIG. 8

shows the door bracket


150


in the fully open position. Specifically, the door bracket


150


has pivoted about the door bracket carrier


140


to the fully open position. In this position, the second lock mechanism


250


is locked and secures the door bracket carrier


140


from moving relative to the body bracket


110


.





FIG. 9

shows the hinge assembly


100


as it is when the door


12


is in the intermediate open position. Specifically, the door bracket


150


has pivoted back about the door bracket carrier


140


to the intermediate open position. In this position, the second lock mechanism is unlocked and the door bracket carrier


140


is therefore free to move relative to the body bracket


110


.




Referring to both

FIGS. 8 and 9

, The second lock mechanism


250


comprises first and second contact surfaces which move in relation to each other. The second lock mechanism


250


also comprises a third and fourth contact surfaces which also move in relation to each other. The second and third contact surfaces also move in unison.




The first contact surface is provided by a tab


252


that is disposed on the door bracket


150


. The second contact surface is provided by the head


256


of a pin


254


. The third contact surface is provided by a pin shaft


258


that is also disposed on the pin


254


, and thus moves in unison with the pin head


256


. The fourth contact surface is provided by a tab


270


disposed on the first link arm


120


and extending from the first link arm.




The door bracket tab


252


is adapted for contact with the pin head


256


. The first link arm tab


270


of the first link arm


120


is adapted for contact with the pin shaft


258


. The entirety of the pin


254


including the pin head


256


and the pin shaft


258


may move independently of the door bracket carrier


140


. Again, however, as the pin head


256


and the pin shaft


258


are both disposed on the pin


254


, they move in unison.




The door bracket tab


252


moves relative to the pin head


256


during pivoting movement of the door bracket


150


. When the door


12


is in the intermediate open position, as is shown in

FIG. 9

, the door bracket tab


252


(i.e., the first contact surface) contacts the pin head


256


(i.e., the second contact surface); and, when the door


12


is in the fully open position, as is shown in

FIG. 8

, the door bracket tab


252


is disengaged from the pin head


256


.





FIG. 8

shows the first link arm tab


270


extending from the link arm


120


in a direction substantially away from the body bracket. The first link arm tab


270


is shown contacting the surface of the pin shaft


258


when the door bracket


150


is in the fully open position and the door bracket tab


252


is disengaged from the pin head


256


. This contact of the first link arm tab


270


(i.e., the fourth contact surface) on the pin shaft


258


(i.e., the third contact surface) restricts movement of the first link arm tab


270


relative to the pin shaft such that movement of the first link arm


120


relative to the door bracket carrier


140


is prohibited. This contact is maintained so long as the door


12


is swung beyond the intermediate open position, thus keeping door bracket carrier


140


fixed relative to the body bracket


110


.





FIG. 9

shows how the first link arm tab


270


is freed from restriction by the pin shaft


258


when the door bracket tab


252


contacts the pin head


256


. Specifically, the pin shaft includes a reduced section


259


proximate to the pin shaft contact surface


258


within which the first link arm tab


270


may move.




The pin


254


moves in a direction perpendicular to the plane of the movement of the door bracket carrier


140


. In

FIG. 9

, upon the door


12


being moved from the fully open position to the intermediate position, the door bracket tab


252


overlaps and engages the pin head


256


causing the pin head


256


and the remainder of the pin


254


to move downward. This movement of the pin results in the pin shaft


258


moving downward relative to the first link arm tab


270


. The first link arm tab


270


may now move relative to the pin shaft by moving within the reduced pin shaft section


259


. Accordingly, the door bracket carrier


140


and the door bracket


150


may move in unison relative the body bracket


110


in the above described shifting manner.




As can be seen in

FIG. 9

, in the intermediate open position, neither the first lock mechanism


200


, nor the second lock mechanism


250


are locked. Accordingly, in this position, either the door bracket


150


can be pivoted about the door bracket carrier


140


, or the door bracket carrier


140


can move about the body bracket


110


. However, if the door bracket


150


is pivoted about the door bracket carrier


140


, the second lock mechanism


250


locks the door bracket carrier


140


relative to the body bracket


110


, thus preventing shifting movement of the door bracket carrier


140


relative to the body bracket


110


. Similarly, if the door bracket carrier


140


is moved about the body bracket


110


, the first lock mechanism


200


locks the door bracket


150


relative to the door bracket carrier


140


, thus preventing the swinging movement of the door bracket


150


relative to the other components of the hinge assembly


100


.





FIGS. 8 and 9

also shows a coil spring


260


. The spring


260


contacts and biases the pin


254


such that the spring moves the pin shaft contact surface


258


upwardly into contact with the link arm tab


270


when the door bracket tab


252


is not in contact with the pin head


256


. In the second lock mechanism's unlocked position shown in

FIG. 9

, the pin


254


is moved downwardly against the spring force applied by the coil spring


260


. In addition to the spring


260


biasing the pin


254


upwardly, the second back mechanism


250


includes fifth and sixth contact surfaces for pushing the pin


254


upwardly. The fifth contact surface is provided by the hook shaped tab


253


(

FIG. 8

) on the door bracket


150


and opposite tab


252


. The sixth contact surface is provided by the lower head (not shown) of the pin


254


, which has a configuration similar to head


256


. When the door


12


is in the intermediate open position, the space


253


′ defined between the door bracket


150


and the hook


253


is aligned with the bottom end of the pin


254


. This allows the pin


254


to be moved downwardly by engagement of the tab


252


. However, as the door


12


is swung towards its fully open position, the tab


253


will engage the lower head of the pin


254


and force it upwardly. This assists the spring


260


to ensure the upward movement of the pin


254


is achieved. After the hook


253


passes the lower head of the pin


254


, the spring


260


will maintain the pin


254


in that position.





FIGS. 8 and 9

also show the body bracket


110


, the door bracket


150


and the door bracket carrier


140


each having a channel shape comprising a web and two opposing flanges. The web


112


of the body bracket is adapted for attachment to a vehicle body. The web


151


of the door bracket is adapted for attachment to a vehicle door.





FIG. 9

also shows how door bracket carrier


140


is substantially disposed within the opposing flanges


152


and


154


of the door bracket


150


when the hinge assembly is in the intermediate open position. This situation also occurs when the hinge assembly is in the fully closed position.





FIG. 10

shows how two hinges


100


A and


100


B may be disposed on a vehicle door


12


in a typical configuration.





FIG. 11

is a top view showing one specific use of the hinge assembly


100


of the present invention, and illustrates the benefits of the present invention. As shown, the hinge assembly


100


connects the door


12


to the body


10


, a second door


14


is attached to the body A-pillar


11


by a conventional single pivot hinge assembly


15


. The second door


14


is shown moving in a continuous arc


30


. The door


12


attached to the hinge assembly


100


of the present invention moves first in shifting motion as the door bracket carrier moves in relation to the body bracket. The shifting motion is specifically curvilinear translation and is shown at the arc


20


. This shifting motion moves the door


12


outwardly away from the vehicle body and also away from the adjacent door


14


. Location


21


is the end of the arc


20


and denotes the intermediate open position for the hinge assembly


100


and the door


12


attached to the hinge assembly


100


. Subsequent to achieving the intermediate open position, the door


12


may be opened to the fully open position by the swinging of the door bracket about the door bracket carrier. This swinging motion is a pivoting motion. The pivoting of the door bracket along with the door


12


about the door bracket carrier is shown at arc


22


. As the door


12


has been first moved in shifting motion, as is shown in arc


20


, the door


12


can now swing freely from the intermediate open position to the fully open position without contacting the door


14


.




As was previously described, the first lock mechanism prevents the door bracket


150


from pivoting about the door bracket carrier until the door bracket carrier


140


has shifted relative to the body bracket


110


. In other words, the door


12


cannot be moved in arc


22


until the door has first been moved in the arc


20


to the intermediate open position


21


. Similarly, the second lock mechanism prevents the door bracket carrier from pivoting about the body bracket until the door


12


has been moved back to the intermediate open position shown at location


21


. In other words, when closing the door


12


, the door cannot move in the arc


20


until the door has moved in the arc


22


completely to the intermediate open position


21


.




Finally, the benefits of the present invention are shown when comparing the movement of the door in arcs


20


and


22


to the movement of a single pivot door as is shown in arc


23


. The arc of the single pivot door


23


obviously overlaps the door


14


when the door


14


is closed. For this reason, the door


12


would have to await the opening of the door


14


before the door


12


could be opened. The arcs


20


and


22


, of the door


12


pivoting on the hinge assembly


100


of the present invention, allows the door


12


to open independently of the door


14


. This situation is shown by the arcs


20


and


22


not overlapping the door


14


when the door


14


is closed.




While an advantageous version of the invention has been chosen to illustrate the invention, those skilled in the art will understand that various changes and modifications can be made therein without departing from the scope of the invention.



Claims
  • 1. A vehicle door hinge assembly for attaching a vehicle door in covering relation to a door opening provided in a vehicle body, said hinge assembly comprising:a body bracket configured to be attached to the vehicle body; a door bracket configured to be attached to the vehicle door; and, a door bracket carrier having said door bracket pivotally mounted thereon; the door bracket carrier being movably mounted to the body bracket such that, when said door bracket is attached to the vehicle door and said body bracket is attached to the vehicle body, said door bracket and the vehicle door to which said door bracket is attached move relative to the vehicle body and said body bracket between a fully closed position and a fully opened position through a multiple phase movement that comprises (a) a shifting phase wherein said door bracket carrier, said door bracket, and the door to which said door bracket is attached move in a shifting manner outwardly from the vehicle body from the fully closed position and an intermediate open position, and (b) a swinging phase wherein said door bracket and the door to which said door bracket is attached move in a swinging manner relative to the door bracket carrier and vehicle body between the intermediate position and the fully open position; said hinge assembly having motion restriction structure that restricts movement of said door bracket relative to said body bracket such that (a) said door bracket is fixed with respect to said door bracket carrier during said shifting phase such that movement of said door bracket and the door to which said door bracket is attached during said shifting phase is restricted to the aforesaid shifting manner, and (b) said door bracket carrier is fixed with respect to said body bracket during said swinging phase such that movement of said door bracket and the door to which said door bracket is attached during said swinging phase is restricted to the aforesaid swinging manner, thereby preventing movement of the door in said shifting manner from occurring prior to or during movement of the door in said swinging manner.
  • 2. The hinge assembly of claim 1, further comprising a first link arm interconnecting the door bracket carrier to the body bracket; wherein the door bracket carrier moves relative to the body bracket through the first link arm from the fully closed position to the intermediate open position.
  • 3. The hinge assembly of claim 2, wherein the first link arm is pivotally connected to the door bracket carrier and the body bracket.
  • 4. The hinge assembly of claim 2, further comprising a second link arm interconnecting the door bracket carrier to the body bracket; wherein the first link arm and the second link arm are both pivotally connected to the body bracket, and the first link arm and the second link arm are both pivotally connected to the door bracket carrier to provide a four-bar linkage constructed such that the shifting movement of the door bracket carrier in relation to the body bracket is curvilinear, with the door attached to the door bracket moving both outwardly relative to the vehicle body and substantially parallel to the door opening.
  • 5. The hinge assembly of claim 4, wherein the hinge assembly further includes a pivot pin connecting the first link arm to the body; a second pivot pin connecting the second link arm to the body bracket; a third pivot pin connecting the door bracket carrier to the first link arm; and, a fourth pivot pin connecting the second link arm to the door bracket.
  • 6. The hinge assembly of claim 5, wherein the fourth pivot pin connecting the second link arm to the door bracket carrier further connects the door bracket to the door bracket carrier.
  • 7. The hinge assembly of claim 1, wherein the door bracket has a channel shape comprising a web and two opposing flanges; wherein the door bracket carrier is substantially disposed within the opposing flanges of the door bracket when the door bracket carrier moves between the filly closed and the intermediate open position.
  • 8. The hinge assembly of claim 1, wherein the motion restriction mechanism comprises:a first lock mechanism locking the door bracket to the door bracket carrier, such that the first lock mechanism locks the door bracket from moving relative to the door bracket carrier when the door bracket carrier moves between the fully closed and the intermediate open position; and, a second lock mechanism connecting the door bracket carrier to the body bracket; wherein the second lock mechanism locks the door bracket carrier from pivoting relative to the body bracket when the door bracket moves between the fully open and the intermediate open position.
  • 9. The hinge assembly of claim 8, wherein the first lock mechanism comprises structure providing a first contact surface disposed on the door bracket; and structure providing a second contact surface disposed on the door bracket carrier; wherein movement of the door bracket carrier results in the relative movement of the second contact surface in relation to the first contact surface;said first and second contact surfaces being positioned such that (a) said first and second contact surfaces are engaged with one another to prevent said door bracket from pivoting relative to said door bracket carrier when said door is in said fully closed position and as said door is moving between said fully closed and intermediate open positions thereof, and (b) said first and second contact surfaces are disengaged from one another upon the door reaching the intermediate position so as to allow the door bracket and the door attached thereto to pivot relative to said door bracket carrier.
  • 10. The hinge assembly of claim 9, wherein said structure providing the first contact surface is an elongated curved element having a first end attached to the door bracket and a distal end extending outward from the door bracket.
  • 11. The hinge assembly of claim 9, wherein the second contact surface is curved.
  • 12. The hinge assembly of claim 10, wherein said structure providing the second contact surface is a roller that rollingly engages said contact surface as the door is moved between the fully closed position and the intermediate open position.
  • 13. The hinge assembly of claim 12, further comprising a first link arm interconnecting the door bracket carrier to the body bracket; wherein the door bracket carrier moves about the body bracket through the first link arm from the fully closed position to the intermediate open position; and, wherein the roller is pivotally attached to the first link arm.
  • 14. The hinge assembly of claim 8, further comprising a first link arm interconnecting the door bracket carrier to the body bracket; wherein the door bracket carrier moves about the body bracket through the first link arm from the fully closed position to the intermediate open position;the second lock mechanism comprising: structure providing a first contact surface disposed on the door bracket; structure providing both a second contact surface and a third contact surface moveably mounted on the door bracket carrier; structure providing a fourth contact surface disposed on the first link arm; said first and second contact surfaces being positioned with respect to one another such that (a) as said door, said door bracket and said door bracket carrier are moved from said fully closed position to the intermediate position, said first contact surface engages said second contact surface to maintain the locking structure in a de-activated position, (b) as said door bracket is pivoted relative to said door bracket carrier during the swinging movement of the door bracket and the door, said first contact surface is disengaged from said second contact surface to enable the locking structure to move to an activated position, and (c) as said door bracket is pivoted relative to said door bracket carrier to move the door in a closing direction into the intermediate open position, the first contact surface is engaged with the second contact surface to move the lock structure to the activated position thereof; said third and fourth contact surfaces being positioned with respect to one another such that (a) when said lock structure is in its activated position the third contact surface engages said fourth contact surface to block movement of said first link arm and thus fix the door bracket carrier relative to said body bracket and (b) when said lock structure is in its disengaged position the third contact surface is disengaged from the fourth contact surface to allow for movement of the first link arm and thus allow the door bracket carrier to move relative to said body bracket.
  • 15. The hinge assembly of claim 14, wherein said lock structure moves in a direction perpendicular to the plane of the movement of the door bracket carrier.
  • 16. The hinge assembly of claim 14, wherein said lock structure is a pin including a pin head providing said second contact surface and a pin shaft providing said third contact surface, the pin shaft including a reduced section proximate to the third contact surface, said reduced section being positioned and configured such that when said pin is in said de-activated position, said reduced section is moved adjacent the fourth contact surface to allow said link arm to move therethrough.
  • 17. The hinge assembly of claim 16, wherein the fourth contact surface comprises a tab extending from the link arm in a direction substantially away from the body bracket.
  • 18. The hinge assembly of claim 17, wherein said second lock mechanism further comprises a spring; wherein the spring biases the pin to the activated position.
Parent Case Info

The present application claims priority to U.S. Provisional Application of Chuan Liang, Application Serial No. 60/299,718, filed Jun. 22, 2001 the entirety of which is incorporated into the present application by reference.

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Provisional Applications (1)
Number Date Country
60/299718 Jun 2001 US