JP2005075040A - Alteration mechanism for converting horizontal openable type door to gull wing type door of automobile - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make a driving source for opening/closing a door to one source and to carry out opening/closing of a door by carrying out movement in a vehicle width direction and inclination motion in a vertical direction of a gull wing type door. <P>SOLUTION: The gull wing type door 1 is supported by a first shaft part 8 movably in the vehicle body width direction and turnably in the vertical direction and a hydraulic cylinder 9 for moving and turning the door 1 is movably and turnably supported by a second shaft part 9. A first cam 12 turned by the hydraulic cylinder 9 and a second cam 20 are turnably mounted to the door 1 and are connected by a connection rod 18. The first cam 12 and the second cam 20 are synchronized by the hydraulic cylinder 9 to rotate them by the same rotation amount. A stopper 29 for stopping the turning of the first cam 12 when the first cam 12 is turned by a predetermined amount, and a first pin insertion hole and a second pin insertion hole 28 inserted with a first pin 27 and a second pin 28 fixed to the first cam 12 and the second cam 20 when the door 1 is closed are provided. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a mechanism for remodeling a horizontally openable door of an automobile into a gullwing door that is remodeled into a gullwing door that can be opened and closed obliquely up and down.

  The doors for getting on and off provided on both sides of an automobile (passenger car) generally have a structure that opens and closes in the horizontal direction, but there is also a so-called gull-wing type door structure that opens and closes in an oblique direction around a fulcrum on the front side of the vehicle body. Therefore, some automobile owners desire to change the doors of their own cars from a horizontally openable door structure to a gull-wing door structure in accordance with their preferences.

  For example, a door of an automobile is sealed between the outer periphery of the door and the vehicle body with rubber packing or the like to prevent rainwater or the like from entering, and when the door is closed to reduce wind noise, there is a step between the door and the vehicle body. There is no such thing. Therefore, in the gull-wing type door structure, when the door is opened, it is necessary to move the entire door in the vehicle body width direction and then obliquely upward, and when closing the door, it is necessary to perform the reverse operation.

Therefore, in the gull-wing type door structure, as shown in the cross-sectional view of FIG. 9 as viewed from the front of the vehicle body and the cross-sectional view of FIG. A pair of front and rear slide rails 52 are fixed to extend in the vehicle body width direction, and a slide frame 54 that is slidable in the vehicle body width direction along the slide rail 52 via a slide unit 53 is provided. The slide frame 54 is moved by a hydraulic cylinder 55 having a base end attached to the body frame 51 and a rod tip attached to the slide frame 54. The slide frame 54 is fixedly provided with a bearing 57 for rotatably supporting a rotating shaft 56 extending in the vehicle body width direction, and the rotating shaft 56 is rotated via a rotating arm 58a. Block 58 is secured. The pivot block 58 is tilted about the bearing 57 by a vertical hydraulic cylinder 59 having a base end attached to the slide frame 54 and a rod tip attached to the pivot block 58. A door 60 is attached to the rotating block 58, and the door 60 is moved in the vehicle body width direction by driving of the hydraulic cylinder 55, and is moved up and down in an oblique direction by the vertical hydraulic cylinder 59. (For example, see Patent Document 1)
JP-A-6-24245 (paragraph numbers [0009] to [0019], FIG. 2 and FIG. 6)

  The problem to be solved is that the movement of one door 60 requires two hydraulic cylinders 55 and 59, and the structure of the slide rail 52, the slide frame 54, etc. that guarantees the movement is complicated. In addition, the number of parts is large and expensive. When opening the door 60, first, the hydraulic cylinder 55 is driven to move the door 60 outward, and after moving the required amount, the vertical hydraulic cylinder 59 is driven to tilt the door 60 obliquely upward. A structure for controlling the driving of the two hydraulic cylinders 55 and 59 is required. Furthermore, it is necessary to install the vehicle body 51 in the vehicle, for example, by fixing a pair of front and rear slide rails 52 to the vehicle body frame 51, and it takes much time and labor to replace the horizontally openable door with a gull-wing door. is there.

  An object of the present invention is to provide a remodeling mechanism for remodeling a horizontally openable door of an automobile to a gull-wing door that can be remodeled very easily with a simplified structure.

  According to a first aspect of the present invention, in a mechanism for remodeling a gull-wing door that opens and closes vertically by removing horizontal open / close doors provided on both sides of the vehicle body, the gull-wing door is provided in the vehicle body width direction. A first shaft portion that is supported so as to be movable and pivotable in the vertical direction; and a second shaft portion that is supported by the body frame so as to be movable and pivotable in the vehicle body width direction. A drive source that moves and rotates, a first cam that is rotatably provided on the gull-wing door, and is connected to the first cam via a connecting member. And a second cam that is rotatably provided on the gull-wing door and that is rotated by the drive source in synchronization with the first cam, and is provided on the gull-wing door, and the first cam is A stopper for stopping the rotation of the first cam when the fixed amount of rotation is performed, a projecting member fixed to each of the first and second cams, and a body frame provided when closing the gull-wing door An insertion portion into which each of the protruding members is inserted is provided.

  According to a second aspect of the present invention, in the configuration of the first aspect, the projecting member is provided only on the first cam.

  According to a third aspect of the present invention, in the configuration of the first aspect, the gull-wing door supports the door when the door is closed and supports the movement in the vehicle width direction when the door is opened and closed. A roller and a second roller that supports vertical movement when the door is opened and closed are provided.

  According to the first aspect of the present invention, the mechanism for remodeling the horizontal opening / closing door of an automobile into a gull-wing type door simplifies the structure, reduces the cost by using one drive source for opening / closing one door, and horizontally opening / closing the door. There is an advantage that it is possible to easily change the type door to the gull-wing type door without requiring modification in the vehicle.

  According to the mechanism for remodeling the horizontally openable door of the automobile according to claim 2 of the present invention into a gull-wing door, there is an advantage that the structure can be simplified as compared with the structure of claim 1.

  According to the mechanism for remodeling the horizontal opening / closing door of the automobile according to claim 3 of the present invention into a gull wing door, the first roller can stably support the door without damaging the door when the door is closed. There is an advantage that the movement in the vehicle width direction and the movement in the vertical direction can be stably performed by the first roller and the second roller when the door is opened and closed.

  A single drive source for opening and closing the doors on both sides was attached to the vehicle body frame, and the movement of the vehicle body width direction and the oblique vertical movement for opening and closing the door were realized by driving one drive source.

  A first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a front view showing the structure of a gull-wing door, FIG. 2 shows a first cam, FIG. 2 (a) is a plan view, FIG. 2 (b) is a front view, and FIG. 3 shows a second cam. 3 (a) is a plan view, FIG. 3 (b) is a front view, and FIG. 4 is a perspective view showing a pin insertion hole.

  Remove the front hood and front fender panel from the car to be remodeled, remove the installed horizontal open / close door, and remodel the gull-wing door (hereinafter simply referred to as the door) 1 that can be opened and closed diagonally. To do.

  First, the structure of the modified door 1 will be described. As shown in FIG. 1, an arm 3 that is inclined obliquely upward is fixed to the front portion of the door beam 2. A bearing 4 is provided on the front end side of the arm 3. The bearing 4 has both ends fixed to the upper member 5 fixed to the front side frame and the door holding member 7 fixed to the floor frame 6 at both ends. A first shaft portion 8 to which is attached is inserted. The first shaft portion 8 has at least a length necessary for the door 1 to move in the vehicle body width direction when the door 1 is opened and closed, and is attached so as to extend in the vehicle body width direction without being inclined up and down. . As a result, the entire door 1 can be translated in the vehicle body width direction along the first shaft portion 8, and can be rotated in the vertical direction around the first shaft portion 8.

  Below the door holding member 7, a second shaft portion 9 having a predetermined length that extends in the vehicle body width direction without being inclined up and down is provided with both ends thereof attached to the door holding member 7. The second shaft portion 9 holds a base end portion of a hydraulic cylinder 10 as a drive source for moving the door 1 in the vehicle body width direction and rotating in the vertical direction. The hydraulic cylinder 10 opens and closes the door 1. Sometimes, it can move along the second shaft portion 9 together with the arm 3 of the door 1 and can rotate around the second shaft portion 9. A first cam 12 is connected to a rod tip of the hydraulic cylinder 10 via a ball bearing (ball socket bearing, the same applies hereinafter) 11.

  As shown in FIG. 2, the first cam 12 is formed in a fan shape that linearly connects a large-diameter arc and a small-diameter arc that have the same center, and is symmetric with respect to a line that connects the center and midpoint of the arc. It has a shape. A center hole 13 is provided at the center of the arc, and two holes having a 90 ° interval around the center of the center hole 13 (arc center) and 45 ° with respect to the symmetry line. 14 and 15 are provided, and a hole 16 is provided outside the hole 15 closer to the center hole 13 than the hole 15. A spherical portion of the ball bearing 11 protrudes from one side of the first cam 12 and is fixed to the hole 16, and a hole of the cam having the spherical portion of the ball bearing 11 protrudes into the hole 14. A tapered first pin 17 is fixedly provided as a protruding member protruding from the surface. In the hole 15, a spherical portion for connecting one end of a connecting rod 18 as a connecting member to the first cam 12 via a ball bearing 19 is opposite to the surface from which the first pin 17 protrudes. The head portion 19a is fixed so as to protrude from the side surface, and a head portion 19a capable of coming into contact with a stopper 29 described later is provided on the upper portion of the spherical portion. The first cam 12 is rotated by a member inserted into the center hole 13 on the lower surface of the arm 3 of the door 1 located on the front side of the door beam 2 with the surface from which the first pin 17 protrudes downward. It is attached as possible.

  A second cam 20 is connected to the other end of the connecting rod 18 via a ball bearing 21. As shown in FIG. 3, the second cam 20 is formed in substantially the same manner as the first cam 12, and the center hole 22 and the holes 23 and 24 are provided at the same position as the first cam 12. A member inserted through the center hole 22 is rotatably attached to a connecting member 25 fixed to the rear side portion of the door beam 20. A spherical portion of the ball bearing 21 is fixed to the hole 23 so as to protrude from the surface of the second cam 20, and the hole 24 is a protruding member that protrudes to the opposite surface from which the spherical portion protrudes. A tapered second pin 26 is fixed. As a result, the first cam 12 and the second cam 20 are synchronously rotated by the same amount of rotation, and the first pin 17 and the second pin 26 simultaneously enter the center holes 13 and 22 by the same amount in the same direction. They are moved relative to each other. The first cam 12 may be used as the second cam 20, and the second cam 20 can be implemented without providing the second cam 20.

  On the upper surface of the floor frame 6, as shown in FIG. 4, when the door 1 is closed, the first pin 17 and the second pin 26 can be inserted from the tip when the first pin 17 and the second pin 26 are closed. The pin insertion hole 28 is provided. Each pin insertion hole 27, 28 has a width that is substantially the same as the diameter of each pin 17, 26 and has a long hole shape that is long in the front-rear direction, and the first cam 12 and the second cam 20 rotate. It is possible to absorb the back-and-forth movement of the pins 17 and 26 at the time.

  The stopper 3 is fixed to the arm 3 to which the first cam 12 is attached, and can come into contact with the head 19 a provided on the upper part of the spherical portion of the ball bearing 19. When the first cam 12 is rotated by 90 ° by the extension operation, the first cam 12 comes into contact with the first cam 12, so that the rotation of the first cam 12 is stopped and the rotation of the second cam 20 is also stopped. A cylindrical roller 30 that can rotate in the vehicle body width direction is attached to the connecting member 25 to which the second cam 20 is attached, and the floor frame is located behind the pin insertion hole 28 when the door 1 is closed. 6 supports the door 1 by abutting the receiving portion 31 formed at the same time, and when moving in the vehicle body width direction at the time of opening and closing, the door 1 is moved by being rotated by the movement of the door 1 so that the door 1 is stably moved. It is like that.

  A cylindrical roller 32 having an inclination in the tangential direction of the circumference around the first shaft portion 8 is attached to the inclined portion of the arm 3 so as to be rotatable around the normal line of the tangent line. It has been. A roller contact member 33 fixed to the side surface of the upper member 6 is disposed at a position corresponding to the roller 32. The roller contact member 33 has a height that makes contact with the peripheral surface of the roller 32 when the door 1 has finished moving in the axial direction and tilted upward, so that the door 1 can be tilted stably. It has become.

  When remodeling the gull-wing type door 1 having the above-described structure, first, the front hood, the front hood panel, the door 1 and the like are removed, and the door inner panel, the door outer panel and glass are removed from the removed door 1. Further, the first pin insertion hole 27 corresponding to the first pin 17 and the second pin 26 provided on the first cam 12 and the second cam 2 attached to the door 1 in the floor frame 6 of the vehicle body frame. And the 2nd pin insertion hole 28 is formed.

  Next, the arm 3 is fixed to the door beam 2 so as to protrude obliquely upward from the front side of the door 1, and the first cam 12 and the second cam 20 are rotatably attached to the bottom of the door 1. Further, the roller contact member 33 is attached to the upper member 5, and the upper portion and the lower portion of the door holding member 7 are fixed to the upper member 5 and the floor frame 6. When attaching the door holding member 7, the first shaft portion 8 for attaching both ends to the door holding member 7 is inserted into the bearing 4 of the arm 3, and the base end portion of the hydraulic cylinder 10 is used as the second shaft portion. 9 and the both ends of the second shaft portion 9 are fixed to the door holding member 7.

  Furthermore, the spherical portion of the ball bearing 11 attached to the tip of the rod of the hydraulic cylinder 9 is attached to the hole 15 formed in the first cam 12, and the spherical portion of the ball bearing 19 and the spherical portion of the ball bearing 21 are changed to the first portion. The first cam 12 is attached to the hole 15 of the first cam 12 and the hole 23 of the second cam 20, and the first cam 12 and the second cam 20 are connected by the connecting rod 18 via the ball bearings 19 and 21.

  Thereafter, a door inner panel, a door outer panel, glass or the like is attached to the door 1. At this time, the door outer panel is sized so that the first pin 17 and the second pin 26 provided on the first cam 12 and the second cam 20 cannot be seen at least from the side. Further, a bottom panel is attached to the bottom of the door 1 located between the door inner panel and the door outer panel so that the first cam 12, the second cam 20, the connecting rod 18 and the like cannot be seen from the outside, and the first The pin 17, the second pin 26, and the roller 30 are brought out of the door 1. A front hood and a front fender panel are installed. At this time, since the door holding member 7 is attached to the vehicle body frame, it is larger than the original vehicle body width. Therefore, the front fender panel is adjusted to this size.

  Next, the effect | action of the said structure is demonstrated based on FIG. 1 and FIGS. 5 and 6 are explanatory diagrams showing the operation of the cam, FIG. 7 is an explanatory diagram showing the movement of the door in the vehicle width direction, and FIG. 8 is an explanatory diagram showing the vertical movement of the door.

  First, the opening operation from the closed state of the door 1 will be described. When opening, when the occupant is inside the vehicle, the power switch provided inside the vehicle is pressed, and when the passenger is outside the vehicle, the remote control switch provided on the key is pressed. Press to start the door 1 opening operation. By the opening operation, the extending operation of the hydraulic cylinder 9 is started, and the first cam 12 and the second cam 20 are synchronized with the connection of the connecting rod 18 as shown in FIGS. The first pin 17 and the second pin 26 are rotated in the vehicle interior direction. Since the first pin 17 and the second pin 26 are inserted into the first pin insertion hole 17 and the second pin insertion hole 28, a force that restricts the rotation acts, and the reaction of the force causes a door. 1 starts to move outward, and the arm 3 and the hydraulic cylinder 9 move along the first shaft portion 8 and the second shaft portion 9, so that the obstacle to the movement of the door 1 in the vehicle width direction is Instead, as shown in FIG. 7, the entire door 1 smoothly moves outward while maintaining the closed state. At this time, since the first cam 12 and the second cam 20 are rotated, the first pin 17 and the second pin 26 are moved backward in the first pin insertion hole 17 and the second pin insertion hole 28. Moving. Then, when the door 1 moves (for example, about 55 mm) and there is no obstacle in the vertical movement, the head portion 19a provided on the spherical portion of the ball bearing 19 comes into contact with the stopper 29, and simultaneously with the second cam 20, The rotation of one cam 12 is stopped.

  Even if the rotation of each of the cams 12 and 20 is stopped, the extension operation of the hydraulic cylinder 9 is continued. Therefore, as shown in FIG. Tilts so as to move upward, and tilts to a predetermined angle to stop the tilting when it becomes wide enough for passengers to get on and off.

  Next, the operation of closing the opened door will be described. In the start of the closing operation, the hydraulic cylinder 9 is driven similarly to the opening operation, and the contraction operation is started. By this contraction operation, the door 1 tilts downward with the first shaft portion 8 as the center, and the first pin 17 and the second pin 26 provided on the first cam 12 and the second cam 20 are the first one. The first pin insertion hole 27 and the second pin insertion hole 28 are inserted. After that, the rotation of the cams 12 and 20 continues, but the pins 17 and 26 abut against the pin insertion holes 27 and 28 and are restricted from moving outwardly. The reverse force acts on the door 1, the door 1 moves toward the inside of the vehicle, and the closing operation of the door 1 is completed.

It is a front view which shows the structure of a gull-wing type door. (Example 1) The 1st cam is shown, Drawing 2 (a) is a top view and Drawing 2 (b) is a front view. The 2nd cam is shown, Drawing 3 (a) is a top view and Drawing 3 (b) is a front view. It is a perspective view which shows the insertion hole of a pin. It is explanatory drawing which shows the operation | movement of a cam. It is explanatory drawing which shows the operation | movement of a cam. It is explanatory drawing which shows the movement to the vehicle width direction of a door. It is explanatory drawing which shows the vertical movement of a door. It is sectional drawing which shows the prior art. It is sectional drawing which shows the prior art.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Door 2 Door beam 3 Arm 4 Bearing 5 Upper member 6 Floor frame 7 Door holding member 8 1st shaft part 9 2nd shaft part 10 Hydraulic cylinder 11, 19, 21 Ball bearing 12 1st cam 13, 22 Center hole 14, 15, 16, 23, 24 hole 17 first pin 18 connecting rod 20 second cam 25 connecting member 26 second pin 27 first pin insertion hole 28 second pin insertion hole 29 stopper 30, 32 Roller 31 receiving portion 33 roller contact member

Claims (3)

In a mechanism that remodels the gull-wing door that opens and closes up and down by removing the horizontal opening and closing doors provided on both sides of the car body,
A first shaft portion provided on the vehicle body frame and supporting the gull-wing door so as to be movable in the vehicle body width direction and rotatable in the vertical direction;
A drive source that is supported by the vehicle body frame via a second shaft portion so as to be movable and rotatable in the vehicle body width direction, and that moves and rotates the gull-wing door;
A first cam rotatably provided on the gull-wing door and rotated by the drive source;
A second cam connected to the first cam via a connecting member and rotatably provided on the gull-wing door, and rotated in synchronization with the first cam by the drive source;
A stopper provided on the gull-wing door and stopping the rotation of the first cam when the first cam rotates a predetermined amount;
Projecting members respectively secured to the first and second cams;
An insertion portion provided on the vehicle body frame, into which each of the protruding members is inserted when closing the gull-wing door;
A mechanism that modifies the horizontal opening-and-closing door of a car into a gull-wing door, characterized by providing 2. The mechanism for remodeling a horizontally openable door of an automobile to a gull-wing door according to claim 1, wherein the protruding member is provided only on the first cam. The gull-wing door includes a first roller that supports the door when the door is closed and supports movement in the vehicle width direction when the door is opened and closed, and a second roller that supports vertical movement when the door is opened and closed. A mechanism for remodeling a horizontally openable door of an automobile to a gull-wing door according to claim 1, characterized in that a roller is provided.

Images