JP4997792B2 - Vehicle door support structure - Google Patents

Description

  The present invention relates to a door support structure attached to a pillar on a vehicle body side via a door hinge.

  A door attached to a front pillar or a center pillar via a door hinge rotates around the door hinge when opened, and the height position of the door is constant. For this reason, if there is a curb in the place where the vehicle is stopped, the lower end of the door will hit the curb when the door is opened, scratching the lower end of the door, or denting the lower end of the door. There are many cases.

In view of this, a door hinge using a screw member at the pin portion which is the hinge rotation center is considered, and a vehicle door support structure using this door hinge has been proposed. In this vehicle door support structure, a male screw is attached to the pillar-side bracket, and a female screw that is screwed to the male screw is attached to the door-side bracket. When the door is opened, the female screw rotates around the male screw, so that the door-side bracket moves upward, so that the entire door can be displaced upward (for example, Patent Documents). 1).
Japanese Utility Model Publication No. 5-44636

  However, in the above conventional technique, the door is displaced upward by screwing the female screw and the male screw. Therefore, the door cannot be displaced to the uppermost position unless the door is fully opened, and the door is being opened. There is a risk that the lower end of the door will hit the curb.

  Further, when the door is displaced upward by screwing of the female screw and the male screw, the upward displacement continues until the door is fully opened, so that the operability of the door is uncomfortable.

  An object of the present invention is to provide a vehicle door support structure that, when opening a door, displaces the entire door quickly and greatly, and does not cause a sense of incongruity with respect to operability.

In order to solve the above problems, the present invention is characterized in that the door is largely displaced upward when the door starts to open. That is, the present invention includes a door hinge provided at a front end portion of a door, a support means to which the door hinge is attached to support the door and movable up and down, and the support means to drive the door in the vertical direction. When the door is opened, the door is displaced upward by the driving force of the driving means and the opening force is applied to the door until the door opening angle reaches a predetermined angle. Door position control means for adding, when the door is opened more than a predetermined angle, the door position control means holds the door at a height position displaced by the drive means upward. It is a feature.

  According to the present invention, when the door starts to open, the door is immediately displaced greatly upward, so even if there is a curb or the like at the place where the vehicle is stopped, it is ensured that the lower end of the door hits the curb or the like. Can be prevented.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 shows a part of a passenger car 2 to which a vehicle door support structure 1 according to the present invention is applied. In the present embodiment, the vehicle door support structure 1 is employed as a hinge mechanism portion for rotatably attaching the front door 3 to the front pillar 4. Here, the vehicle door support structure on the left side of the vehicle will be described, but the same applies to the vehicle door support structure on the right side of the vehicle.

  2A and 2B show the vehicle door support structure 1, wherein FIG. 2A is a perspective view when the front door 3 (see FIG. 1) is closed, and FIG. 2B is a perspective view when the front door 3 is opened. It is. 3 and 4 show a state when the front door 3 starts to open (or immediately before full closing), and FIG. 3 is a view of the vehicle door support structure 1 as seen from the front side of the vehicle. These are the figures which looked at the vehicle door support structure 1 from the vehicle rear side.

  As shown in FIGS. 2 to 4, a bar-like member 5 as a support means is arranged in the vertical direction along the front pillar 4 provided on the vehicle body. The rod-shaped member 5 has a columnar shape or a cylindrical shape having a rectangular cross section, and door hinges 6 and 7 are provided at the upper and lower portions, respectively. These door hinges 6 and 7 are fixed to the front end face of the front door 3.

  The door hinge 6 is provided between the hinge body 8, the two receiving portions 5A and 5A formed on the rod-shaped member 5 and projecting outward in the vehicle width direction to sandwich the hinge body 8 from above and below, and the two receiving portions 5A and 5A. It has the pin 9 which supports the hinge main body 8 rotatably in the arrow A direction.

  Further, the door hinge 7 is formed between the hinge body 10, the two receiving portions 5B and 5B formed on the rod-like member 5 and projecting outward in the vehicle width direction to sandwich the hinge body 10 from above and below, and the two receiving portions 5B and 5B. And a pin 11 that rotatably supports the hinge body 10 in the direction of arrow B.

  On the other hand, brackets 12 and 13 are fixed to the outer surface of the front pillar 4 (the outer surface along the vehicle width direction) at two locations on the top and bottom.

  The bracket 12 has two receiving plates 12A and 12A that protrude outward in the vehicle width direction and are arranged in the vehicle front-rear direction. The upper main link 14 is freely rotatable by a pin 15 between the two receiving plates 12A and 12A. It is supported by. The bracket 13 has two receiving plates 13A and 13A that protrude outward in the vehicle width direction and are arranged in the vehicle front-rear direction. The lower main link 16 is rotated by a pin 17 between the two receiving plates 13A and 13A. It is supported freely.

  The upper main link 14 is attached to the front side surface of the rod-like member 5 by a pin 18 and is rotatable around the pin 18. The lower main link 16 has a tip attached to the front side surface of the rod-like member 5 by a pin 19 and is rotatable around the pin 19. The mounting position of the pin 18 is below the door hinge 6 and above the door hinge 7, and the mounting position of the pin 19 is below the door hinge 7.

  A bracket 20 is fixed to the rear side surface of the front pillar 4, and a control link 21 is attached to the bracket 20 by a pin 22, and the control link 21 is rotatable around the pin 22. Further, a sub link 23 is attached to an intermediate portion of the rod-shaped member 5 (between the door hinge 6 and the door hinge 7) by a pin 24, and the sub link 23 is rotatable around the pin 24. Further, the tip ends of the control link 21 and the sub link 23 are connected to each other by a pin 25, and the control link 21 and the sub link 23 are relatively rotatable around the pin 25.

  In this embodiment, the upper main link 14, the lower main link 19, the control link 21, the sub link 23, and the like constitute door position control means.

  A convex portion 21A that protrudes rearward of the vehicle is formed at the central portion of the control link 21, and a gas stay 26 as a driving means is attached to the convex portion 21A. The gas stay 26 includes a cylinder 26A whose upper end is connected to the convex portion 21A of the control link 21 via a pin 27, and a rod 26B whose lower end is fixed to the rear side surface of the front pillar 4 and is provided in the cylinder 26A so as to freely advance and retract. have.

  Further, as shown in FIG. 5, a support shaft 28 is provided at the front end of the control link 21 toward the vehicle rear side, and a roller 29 is rotatably attached to the support shaft 28. The outer peripheral surface of the roller 29 can abut on the door inner panel 3 </ b> A of the front door 3.

  Next, the operation of the vehicle door support structure 1 in this embodiment will be described.

  When the front door 3 is fully closed, as shown in FIG. 2A, the upper main link 14 is hung from the pin 15, and the lower main link 16 is also hung from the pin 17. Yes. At this time, each main link 14, 16 draws the rod-shaped member 5 toward the front pillar 4, and the main links 14, 16 are in close contact with the front side surface of the rod-shaped member 5.

  Further, each main link 14, 16 pulls the rod-shaped member 5 toward the front pillar 4, whereby the sub link 23 presses the lower part of the control link 21 toward the front pillar 4, and as a result, as shown in FIG. As described above, the gas stay 26 is pressed by the control link 21 and is contracted (a state in which most of the rod 26B enters the cylinder 26A).

  Here, when the passenger tries to open the front door 3 and operates a door handle (not shown) on the door inner side or the door outer side, the front door 3 is unlocked. When the front door 3 is unlocked and the front door 3 is opened slightly, the gas stay 26 pushes up the control link 21 as shown by arrow C by the internal gas pressure, as shown in FIG. 21 rotates around the pin 22 in the direction of arrow D.

  When the control link 21 rotates in the direction of arrow D, the turning force is transmitted to the rod-like member 5 via the sub-link 23, and the rod-like member 5 moves upward as indicated by the arrow E. As a result, the front door 3 as a whole Is displaced upward. At this time, the upper main link 14 rotates about the pin 15 in the direction of arrow F, and the lower main link 16 rotates about the pin 17 in the direction of arrow G. It becomes horizontal. When the control link 21 rotates in the direction of arrow D, the roller 29 at the tip of the control link 21 contacts the door inner panel 3A of the front door 3 and presses the front door 3 in the direction in which the front door 3 opens.

  When the main links 14 and 16 are in the horizontal state, the front door 3 is held at the height position at that time. Here, the opening angle of the front door 3 when the front door 3 is displaced to the highest position after the opening of the front door 3 is started is defined as a predetermined angle.

  In this embodiment, the front door 3 starts to open and the front door 3 is displaced upward until the opening angle reaches the predetermined angle. When the front door 3 is further opened and the opening angle becomes equal to or larger than the predetermined angle, the front door 3 is held at a height position pushed up by the gas stay 26. This is the same when the front door 3 is closed. That is, until the front door 3 is closed at the predetermined angle, the front door 3 is held at the height position pushed up by the gas stay 26. When the opening angle is less than the predetermined angle, the inner panel 3A of the front door 3 presses the roller 29 at the tip of the control link 21, and the control link 21 is pushed in a direction in which the gas stay 26 is compressed by this pressing force. That is, when the front door 3 is closed below the predetermined angle, the front door 3 is displaced downward against the push-up force of the gas stay 26.

  According to the present embodiment, since the front door 3 starts to be opened and the front door 3 can be quickly and greatly displaced upward until the opening angle reaches a predetermined angle, there is a curb or the like at the place where the vehicle is stopped. Even if it exists, when the front door 3 is opened, it can prevent that the lower end part of the front door 3 collides with a curbstone etc. beforehand.

  Further, since the roller 29 at the tip of the control link 21 pushes the front door 3 in the opening direction while displacing the front door 3 upward, the front door 3 can be opened smoothly.

  FIG. 7 shows a second embodiment. In this embodiment, a wire 30 that pulls the front end of the door hinge 6 is provided as a mechanism that applies a force in the opening direction to the front door 3 when the front door 3 is displaced upward. That is, as shown in FIG. 7A, a crank 31 connected to the rotating shaft of the upper main link 14 is provided, and the wire 30 has one end on the tip of the crank 31 and the other end on the hinge body 8. Each is connected to the front end. A pulley 32 is rotatably installed above the bracket 12, and the wire 30 is wound around the pulley 32.

  In the above configuration, when the front door 3 is opened, as shown in FIG. 7B, when the rod-like member 5 is raised by driving the gas stay 26 and the upper main link 14 is rotated, the rotation is interlocked with this rotation. As a result, the crank 31 rotates in the direction of arrow H, and the wire 30 is pulled. When the wire 30 is pulled, the door hinge 6 rotates in the direction of the arrow A1 about the pin 9, whereby a force in the opening direction acts on the front door 3.

  In the first embodiment, since the roller 29 at the tip of the control link 21 is in contact with the door inner panel 3A and presses the front door 3 in the opening direction, the roller 29 may be indented on the inner panel 3A surface. However, in the present embodiment, since the front end portion of the door hinge 6 is pulled by the wire 30, no indentation or the like is generated on the surface of the door inner panel 3A.

  FIG. 8 shows a third embodiment. In this embodiment, a motor 40 is provided as a driving means for moving the rod-like member 5 upward (that is, moving the front door 3 upward). That is, a motor 40 is provided on the bracket 12, and a spur gear 41 is attached to the rotating shaft of the motor 40. A spur gear 42 is attached to the rotating shaft of the upper main link 14, and the spur gear 42 meshes with the spur gear 41. Further, limit switches 43 and 44 for detecting a limit position when the rod-shaped member 5 moves upward or downward are provided. Other configurations are the same as those in the first embodiment.

  In the above configuration, when the front door 3 is opened, as shown in FIG. 8, when the motor 40 is driven, the rotational force is transmitted to the upper main link 14 via the spur gears 41 and 42, and the upper main link is It rotates in the direction of arrow I. Thereby, the rod-shaped member 5 raises and the front door 3 whole can be displaced upwards. Note that when the front door 3 is opened, the roller 29 at the front end of the control link 21 presses the door inner panel 3A of the front door 3 in the same manner as in the first embodiment.

  Here, FIG.10 and FIG.11 is the flowchart which showed the operation | movement at the time of opening and closing of the front door 3 in detail.

  When the front door 3 is opened, as shown in FIG. 10, when the occupant pulls the door handle (step S1), the motor switch is turned on (step S2), whereby the motor 40 is rotated forward (step S3). The upper main link 14 is actuated (rotated in the direction of arrow I in FIG. 8) (step S4). When the upper main link 14 rotates in the direction of arrow I, the front door 3 opens (step S5), and the bar-shaped member 5 rises to reach the top (step S6).

  When the rod-like member 5 reaches the uppermost position, the limit switch 43 is actuated (step S7), the motor switch is turned off (step S8), and the front door 3 is held at the uppermost position. Then, it waits until the door is closed (step S9). Even when the front door 3 is opened by a predetermined angle (the same as the predetermined angle in the first embodiment), the front door 3 remains held at the uppermost position.

  When closing the front door 3 below the predetermined angle, as shown in FIG. 11, when a passenger presses a button installed near the door handle (step S11), the motor switch is turned on (step S12). As a result, the motor 40 reverses (step S13), and the upper main link 14 operates (rotates in the direction opposite to the direction of arrow I) (step S14). When the upper main link 14 rotates in the direction opposite to the direction of the arrow I, the front door 3 starts to be displaced downward, and at this time, it is determined whether or not a foreign object is caught between the front door 3 and the vehicle body. (Step S15). When it is determined that no foreign matter is caught, the front door 3 is further displaced downward and closed (step S16), and when the rod-like member 5 reaches the lowest position, it is fully closed and the limit switch 44 is activated. Then (step S17), the motor switch is turned off (step S18).

  If it is determined in step S15 that a foreign object is caught, a sensor provided in a seal portion or the like of the front door 3 reacts (step S19), thereby causing the motor 40 to rotate forward and the front door 3 to rise ( After that, the front door 3 stops at a certain height (step S20). And after a passenger | crew removes a foreign material, the operation | movement after step S11 is repeated.

  According to this embodiment, since the motor 40 is built in the bracket 12, the entire vehicle door support structure can be made compact.

  FIG. 9 shows a fourth embodiment. In the present embodiment, a motor 50 is provided as a driving means for moving the rod-shaped member 5 upward, as in the third embodiment. The motor 50 is not built in the bracket 12 and is arranged such that its drive shaft is perpendicular to the rotation axis of the upper main link 14. A bevel gear 51 is attached to the end of the drive shaft of the motor 50, and a bevel gear 52 is attached to the end of the rotation shaft of the upper main link 14. The bevel gears 51 and 52 mesh with each other. It is to be noted that limit switches 43 and 44 for detecting a limit position when the rod-shaped member 5 moves upward or downward are the same as in the third embodiment.

  In the above configuration, when the front door 3 is opened, the rotational force is transmitted to the upper main link 14 via the bevel gears 51 and 52 by driving the motor 50 as shown in FIG. Rotate in J direction. Thereby, the rod-shaped member 5 raises and the front door 3 whole can be displaced upwards.

  According to the present embodiment, a larger motor can be used as the motor 50 than in the third embodiment, and the vehicle door support structure 1 according to the present invention can be applied to a large vehicle having a large door. is there.

  FIG. 12 shows a fifth embodiment. In this embodiment, a damper 60 is used as a driving means for displacing the front door 3 upward. In other words, the damper 60 includes a columnar body 61 arranged vertically and a cylindrical body 62 through which the columnar body 61 is inserted and freely movable in the vertical direction along the columnar body 61.

  On the inner surface of the cylindrical body 62, concave portions are formed in two places, upper and lower, and in the cylindrical body 61, flow paths communicating with the respective concave portions are formed. Then, compressed air (or compressed gas or pressurized oil) is supplied to each concave portion on the inner surface of the cylindrical body 61 through the flow path in the cylindrical body 61, or the supply is stopped, so that the cylindrical body 62 is changed to the cylindrical body. It can be moved up and down along 61.

  A bracket 63 is attached to the cylindrical body 61 at the upper end, and a bracket 64 is attached to the lower end, and these brackets 63 and 64 are fixed to the side surface of the front pillar 4. Receiving portions 62A and 62A projecting outward in the vehicle width direction are formed on the upper portion of the cylindrical body 62, and receiving portions 62B and 62B projecting outward in the vehicle width direction are formed on the lower portion. A pin 65 is provided between the receiving portions 62 </ b> A and 62 </ b> A, and the door hinge 6 is rotatably attached around the pin 65. Further, a pin 66 is provided between the receiving portions 62B and 62B, and the door hinge 7 is rotatably attached around the pin 66. Furthermore, limit switches 67 and 68 for detecting a limit position when the cylindrical body 62 moves upward or downward are provided. The control link 21, the sub link 23, the roller 29 at the tip of the control link 21, and the like are provided in the same manner as in the first embodiment.

  In the above configuration, when the front door 3 is opened, if compressed air is supplied to the damper 60 in the state shown in FIG. 12A, the cylindrical body 62 extends along the cylindrical body 61 as shown in FIG. As a result, the door hinges 6 and 7 move upward. As a result, the front door 3 can be displaced upward. When opening the front door 3, the roller 29 at the front end of the control link 21 contacts the door inner panel 3A of the front door 3 and presses the front door 3 in the opening direction.

  Here, FIG. 13 and FIG. 14 are flowcharts showing in detail the operation when the front door 3 is opened and closed.

  When opening the front door 3, as shown in FIG. 13, when the occupant pulls the door handle (step S31), the pump is driven to increase the compressed air pressure (step S32), and the cylindrical body 62 of the damper 60 is raised. At the same time (step S33), the control link 21 operates (step S34), and the front door 3 starts to open (step S35).

  When the cylindrical body 62 reaches the uppermost position (step S36), the limit switch 67 is activated (step S37), the pump is turned off (step S38), and the front door 3 is held at the uppermost position. Then, it waits until the door is closed (step S39). Even when the front door 3 is opened by a predetermined angle (the same as the predetermined angle in the first embodiment), the front door 3 remains held at the uppermost position.

  When closing the front door 3 below the predetermined angle, as shown in FIG. 14, when the occupant presses a button installed near the door handle (step S41), air is released only while the button is pressed. (Step S42), the front door 3 is lowered by its own weight (Step S43). At this time, the control link 21 is activated (step S44).

  Then, it is determined whether or not a foreign object is caught between the front door 3 and the vehicle body (step S45). If it is determined that no foreign object is caught, the front door 3 is further displaced downward and fully closed. (Step S46).

  If it is determined in step S45 that a foreign object is caught, a sensor provided in the seal portion of the front door 3 reacts (step S47), whereby the pump is activated and the front door 3 is raised. (Step S48), then, the front door 3 stops at a constant height (Step S49). And after a passenger | crew removes a foreign material, the operation | movement after step S41 is repeated.

  According to the present embodiment, since the front door 3 is displaced up and down using the damper 60, the vehicle door support structure can be simplified.

  15 to 17 show a sixth embodiment. In the vehicle door support structure in the present embodiment, a rod-like member 70 is disposed on the front end face side of the front door 3, and door hinges 71 and 72 are respectively attached to the upper and lower sides of the rod-like member 70. The door hinges 71 and 72 are fixed to the front end face side of the front door 3.

  The rod-like member 70 has a square shape, and as shown in FIG. 15, one side of the upper main link 74 is attached to the upper and lower sides of the front side surface by a pin 73, and the upper main link 74 is rotatable around the pin 73. It has become. One side of the lower main link 76 is attached to the lower part of the front side surface of the rod-shaped member 70 by a pin 75, and the lower main link 76 is rotatable around the pin 75.

  One side of the control link 78 is attached to the front end surface (front end surface) of the door hinge 71 via a ball joint 77. That is, as shown in FIGS. 16 and 17, the ball joint 77 has a fixed portion 77A and a movable portion 77B coupled to the fixed portion 77A in a three-dimensionally tiltable manner, and the fixed portion 77A is a door hinge 71. A movable portion 77B is fitted in a long hole 78A formed on one side of the control link 78.

  As shown in FIG. 15, the other side of the upper main link 74 is attached to a front pillar (not shown) by a pin 79, and the upper main link 74 is rotatable around the pin 79. The other side of the lower main link 76 is attached to the front pillar by a pin 80, and the lower main link 76 is rotatable around the pin 80. Further, the other side of the control link 78 is attached to the front pillar by a pin 81, and the control link 78 is rotatable around the pin 81.

  The length of the control link 78 is set shorter than the length of the upper main link 74 and the lower main link 76. Further, although not shown in the drawing, a motor for rotating the upper main link 74 (or the lower main link 76) is provided.

  In the above configuration, when the front door 3 is fully closed, as shown in FIG. 15A, the upper main link 74 is disposed obliquely with the pin 73 side downward and the pin 79 side upward. The lower main link 76 is disposed obliquely with the pin 75 side facing downward and the pin 80 side facing upward. The control link 78 is disposed obliquely with the ball joint 77 side facing downward and the pin 81 side facing upward.

  When opening the front door 3, a motor (not shown) is driven, for example, the upper main link 74 is rotated about the pin 79 in the direction of arrow K, and the rod-shaped member 70 is displaced upward. At this time, the lower main link 76 rotates around the pin 80 in the arrow L direction, and the control link 78 rotates around the pin 81 in the arrow M direction. And each link 74,76,78 will be in a horizontal state, as shown in FIG.15 (b). Thereby, the front door 3 can be displaced upward and the front door 3 can be hold | maintained in the upper position.

  When the control link 78 rotates together with the main links 74 and 76, the length of the control link 78 is shorter than that of the main links 74 and 76. Therefore, the control link 78 is in a horizontal state as shown in FIG. As a result, the front end side of the front door 3 is pulled through the ball joint 77 and the door hinge 71, whereby the front door 3 rotates about the door hinges 71 and 72 and the rear end side is slightly opened.

  To open the front door 3 further, the passenger pulls (or pushes) the door handle. At this time, in this embodiment, since the movable portion 77B of the ball joint 77 is fitted into the elongated hole 78A of the control link 78, when the front door 3 is opened widely, the movable portion 77B is accordingly elongated. The front door 3 can be easily opened by moving within 78A.

  18 to 20 show the seventh embodiment. In the present embodiment, a protrusion 21B is formed at the lower end of the control link 21, and the front door 3 is provided with a hook 3B that engages the protrusion 21B. The hook 3B is rotatable in the direction of arrow N about the shaft 3C. Other configurations are the same as those in the first embodiment. Here, the protrusion 21B and the hook 3B constitute a locking means.

  In the above configuration, when the front door 3 is opened, if the control link 21 rotates about the pin 22 in the direction of the arrow O by driving the gas stay 26, the inclination angle θ of the protrusion 21B gradually decreases as shown in FIG. However, the engagement between the protrusion 21B and the hook 3B is maintained until the inclination angle θ of the protrusion 21B reaches a predetermined angle. When the inclination angle θ exceeds the predetermined angle, the hook 3B is rotated in the direction of arrow N (see also FIG. 18) to release the locking state of the protrusion 21B.

  As a mechanism for releasing the locking state of the protrusion 21B, as shown in FIG. 20, a wire 80 is connected to one end side of the hook 3B, and this wire 80 is guided to the vehicle interior via a pulley 81, and the protrusion 21B The wire 80 may be pulled in the direction of the arrow P when releasing. In this case, the hook 3B is always urged by the spring 82 in the direction opposite to the arrow N direction.

  According to the present embodiment, the front door 3 is prevented from being largely opened until the front door 3 has been lifted upward, and the lower end portion of the front door 3 can be more reliably prevented from colliding with a curbstone or the like.

  Further, according to the present embodiment, the front door 3 can be opened immediately by simply pulling the wire 80 in the direction of arrow P, which is effective when an occupant escapes from the vehicle in an emergency.

  Although the embodiments of the present invention have been described in detail with reference to the drawings, each of the above embodiments is only an example of the present invention, and the present invention is not limited only to the configuration of each of the above embodiments. . Needless to say, changes in design and the like within the scope of the present invention are included in the present invention. For example, each of the above embodiments is an example in which the vehicle door support structure is applied to the front door 3, but the vehicle door support structure of the present invention can also be applied to a rear door.

1 is a perspective view of a passenger car to which a vehicle door support structure according to the present invention is applied. The vehicle door support structure by Example 1 is shown, (a) is a perspective view when a front door is closed, (b) is a perspective view when a front door is opened. It is the figure which looked at the door support structure for vehicles from the vehicle front side. It is the figure which looked at the door support structure for vehicles from the vehicle rear side. It is a top view of the door support structure for vehicles. The operation of each link is shown, (a) is a diagram when the front door is fully closed, and (b) is a diagram when the front door is opened at a predetermined angle. The vehicle door support structure by Example 2 is shown, (a) is a perspective view when a front door is closed, (b) is a perspective view when a front door is opened. FIG. 9 shows a vehicle door support structure according to a third embodiment and is a perspective view when the front door is closed. Fig. 10 shows a vehicle door support structure according to a fourth embodiment, and is a perspective view when the front door is closed. In the vehicle door support structure according to Embodiment 4, it is a flowchart when the front door is opened. In the vehicle door support structure according to Embodiment 4, it is a flowchart when the front door is closed. The vehicle door support structure by Example 5 is shown, (a) is a perspective view when a front door is closed, (b) is a perspective view when a front door is opened. 10 is a flowchart when the front door is opened in the vehicle door support structure according to the fifth embodiment. In the vehicle door support structure according to Embodiment 5, it is a flowchart when the front door is closed. The vehicle door support structure by Example 6 is shown, (a) is a figure when the front door is closed, (b) is a figure when the front door is opened. FIG. 10 is a perspective view of a main part of a vehicle door support structure according to a sixth embodiment. FIG. 10 is an exploded perspective view of a main part of a vehicle door support structure according to a sixth embodiment. FIG. 10 is a diagram showing a vehicle door support structure according to a seventh embodiment. The principal part of the vehicle door support structure by Example 7 is shown, (a), (b), (c) is the figure which showed the time-dependent change of the position of a hook and a protrusion. FIG. 10 is a configuration diagram of a main part of a vehicle door support structure according to a seventh embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vehicle door support structure 3 Front door 3A Door inner panel 3B Hook (a part of latching means)
4 Front pillar 5 Bar-shaped member (supporting means)
6,7 Door hinge 14 Upper main link (part of door position control means)
16 Lower main link (part of door position control means)
21 Control link (part of door position control means)
21B Protrusion (part of locking means)
23 Sublink 26 Gas stay (drive means)
29 Roller 30 Wire 40, 50 Motor (driving means)
60 Damper (drive means)
70 Rod-shaped member (supporting means)
71, 72 Door hinge 74 Upper main link (part of door position control means)
76 Lower main link (part of door position control means)
77 Ball joint 78 Control link (part of door position control means)
78A long hole

Claims (7)

A door hinge provided at the front end of the door;
A support means attached to the door hinge to support the door and movable in the vertical direction;
Drive means for driving the support means to displace the door in the vertical direction;
When the door is opened, until the door opening angle reaches a predetermined angle, the door is displaced upward by the driving force of the driving means, and the door position control means applies an opening force to the door. With
The door position control means holds the door at a height position where the drive means is displaced upward when the door is opened at a predetermined angle or more . 2. The vehicle door support structure according to claim 1, wherein the driving means is a gas stay, a motor, or a damper . 2. The vehicle door support structure according to claim 1 , wherein the door position control means presses the door inner panel on the rear side of the door hinge when an opening force is applied to the door . 2. The vehicle door support structure according to claim 1 , wherein the door position control unit pulls a front side of the door hinge when a force in an opening direction is applied to the door. The door position control means, until to displace the door to the most upward of claim 1, characterized in that it comprises a locking means the door is locked the doors do not open the predetermined angle or more Vehicle door support structure. 6. The vehicle door support structure according to claim 5 , further comprising a release mechanism capable of releasing the locked state by the locking means at any time . The door position control means, when said door is closed, the vehicle door supporting structure according to claim 1, the opening angle of the door, characterized in displacing the said door When becomes less than the predetermined angle downward .

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