JP2008308840A - Vehicle door structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a door structure for a vehicle, which reduces a storage space for a cylinder-type door checker. <P>SOLUTION: This door structure for the vehicle comprises a door 1 which is swingably mounted on a vehicle body, and the door checker 80 which has a cylinder-type damper mechanism, the one end of which is swingably connected to the door, the other end of which is swingably connected to the vehicle body, which is expanded/contracted depending on a door opening/closing operation and which holds the door in a prescribed position. In the door structure, a position of a door-side supporting point P1 of the door checker when the door is regarded as a reference, a position of a vehicle body-side supporting point P2 in the full closing of the door, and a position of the vehicle body-side supporting point in the full opening of the door are arranged almost in alignment with one another. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a vehicle door structure, and more particularly, to a vehicle door structure having a cylinder type door checker capable of holding a door in an arbitrary open position.

A door checker that can be held at a plurality of opening positions is provided on a door that is used for passenger entry / exit of an automobile and swings and opens by a hinge mechanism.
2. Description of the Related Art Conventionally, a door checker having a rubber damper fixed in a door and a sliding portion having a peak portion and a valley portion that move relative to the rubber damper when the door is opened and closed and press-contact with the rubber damper is known (for example, , See Patent Document 1).
Also, a door checker having an air damper having a cylinder mechanism is known for the purpose of reducing the load on the vehicle body side mounting portion when the door is fully open (see, for example, Patent Document 2).
Japanese Patent Laid-Open No. 7-101246 JP 2006-274668 A

The door checker provided with the cylinder type damper mechanism can make the user feel a high texture when the door is opened and closed, and can improve the attractiveness of the vehicle.
However, the cylinders that are connected to the vehicle body side and the door side at both ends and housed inside the door swing inside the door around the door side fulcrum according to the opening and closing operation of the door. Will become bigger.
The subject of this invention is providing the door structure for vehicles which reduced the accommodation space of the cylinder type door checker.

The present invention solves the above-described problems by the following means.
The invention of claim 1 has a door that is swingably mounted on the vehicle body, a cylinder accommodated in the door, and a rod protruding from the cylinder, and one end of the door is rocked with respect to the door. A vehicle door comprising: a door checker that is movably connected, the other end of which is swingably connected to the vehicle body, expands and contracts according to the opening and closing operation of the door, and holds the door in a predetermined position. It is a structure, and the door side fulcrum of the door checker when viewed with the door as a reference, the vehicle side fulcrum when the door is fully closed, and the position of the vehicle side fulcrum when the door is fully open are arranged in a substantially straight line. A vehicle door structure characterized by the above.

  According to the present invention, by arranging the door side fulcrum of the door checker, the vehicle body side fulcrum when the door is fully closed, and the position of the vehicle body side fulcrum when the door is fully open, the door checker around the door side fulcrum is arranged. The swing angle can be reduced. In addition, when the door is fully closed to fully open, the door checker swings only to one side with respect to the position of the door checker when the door is fully closed, so that the storage space for the door checker inside the door can be reduced. it can. This facilitates securing clearance with other components. Moreover, since the holding force change for every door opening degree is reduced, the freedom degree which sets a door operation force can be expanded.

  The present invention provides a vehicle door structure with a reduced storage space for a cylinder type door checker. The door side fulcrum of the door checker, the vehicle body side fulcrum when the door is fully closed, and the vehicle body side fulcrum when the door is fully open. The problem was solved by arranging the positions almost in a straight line.

Embodiments of a vehicle door structure to which the present invention is applied will be described below.
In the present embodiment, the door to which the vehicle door structure of the present invention is applied is, for example, a front passenger seat door of an automobile such as a passenger car.
FIG. 1 is a schematic perspective view of the door of the embodiment as viewed from the side surface (outside in the vehicle width direction).
2 is a cross-sectional view taken along the line II-II in FIG.

The door 1 is provided at a door opening on a side of a vehicle compartment (cabin) of the vehicle, and swings around a hinge shaft provided at a front end portion thereof to open and close.
The door 1 includes an outer panel 10, an inner panel 20, a door trim 30, a window glass 40, a hinge 50, a latch mechanism 60, a side impact beam 70, a free stop checker 80, and the like.

The outer panel 10 is a part constituting a part of the vehicle outer plate.
The inner panel 20 is disposed to face the surface of the outer panel 10 on the vehicle interior side with a space therebetween. Thus, a space S (see FIG. 2) is formed between the outer panel 10 and the inner panel 20. The front, lower, and rear end portions of the inner panel 20 are formed so as to protrude to the outer panel 10 side, and are joined to the corresponding outer peripheral edge portions of the outer panel 10 at the protruding end portions.
The outer panel 10 and the inner panel 20 are formed, for example, by pressing a metal plate such as a steel plate or an aluminum alloy plate, or by a resin material or the like.

The door trim 30 is an interior member provided on the surface of the inner panel 20 on the vehicle interior side for decoration, passenger protection, and the like, and is formed of, for example, a resin material.
The window glass 40 is provided so as to be openable and closable at a door opening above the window shoulders (upper ends of the outer panel 10 and the inner panel 20). The window glass 40 can be raised and lowered with respect to the outer panel 10 and the inner panel 20 by a lifting mechanism (not shown), and is housed in the space S when lowered.

The hinge 50 supports the door 1 with respect to the vehicle body 100 (see FIG. 2) so that the door 1 can swing (rotate) about its axis, and is fixed to the front end portion of the inner panel 20 and separated in the vertical direction. A pair is provided. As shown in FIG. 1, the rotation axis A of the hinge 50 is arranged in a substantially vertical direction, and as shown in FIG. 2, it is arranged in the front end portion inside the door 1 and in the vicinity of the outer end portion in the vehicle width direction. ing.
The latch mechanism 60 is provided at the rear end portion of the door 1 and engages with a striker (not shown) provided on the vehicle body side to hold the door 1 in the closed position.

The side impact beam (door beam) 70 is a structural member provided in the front-rear direction in order to suppress deformation of the door 1 at the time of a side collision of the vehicle.
The front end portion and the rear end portion of the side impact beam 70 are fixed to the front end portion and the rear end portion of the inner panel 20 directly or to a stiffening member (phosphorus reinforcement) (not shown) provided respectively.

The free stop checker (door checker) 80 includes a cylinder type gas damper that expands and contracts according to the opening / closing operation of the door 1, and holds the door 1 in an arbitrary open position. The free stop checker 80 includes a cylinder 81, a rod 82, and the like.
The free stop checker 80 is disposed below the side impact beam 70 in the space S of the door 1 and in a region on the door hinge side.

  The cylinder 81 is arranged so that the longitudinal direction is substantially the vehicle front-rear direction when the door 1 is in the fully closed state, and the end portion 81 a on the vehicle rear side is substantially the lower end portion of the inner panel 20 of the door 1. It is connected so as to be swingable about a rotation shaft arranged vertically. The intersection of this rotating shaft and the central axis of the cylinder 81 will be described as a door side fulcrum P1 below.

  The rod 82 is inserted substantially concentrically with the cylinder 81 on the inner diameter side of the cylinder 81, and is disposed so as to protrude from the end portion of the cylinder 81 on the vehicle front side. A piston (not shown) is provided at the rear end of the rod 82. The piston generates a damping force when moving with respect to the cylinder 81. An end portion 82a of the rod 82 on the vehicle front side is connected to a fulcrum provided at a door opening of the vehicle body so as to be swingable about a rotation shaft arranged substantially vertically. The intersection between the rotation axis and the central axis of the rod 82 will be described below as the vehicle body side fulcrum P2.

  As shown in FIG. 2, the vehicle body side fulcrum P <b> 2 is disposed on the inner side in the vehicle width direction and on the vehicle rear side with respect to the rotation axis A of the hinge 50. As a result, the rod 82 is continuously pulled out from the cylinder 81 in accordance with the movement of the door 1 from the fully closed position to the fully open position, and the entire length of the free stop checker 80 is extended. Further, when the door 1 is opened and pulled out from the cylinder 81, the rod 82 can project out of the door 1 from an opening provided at the front end portion of the inner panel 20. A rubber cylindrical dust boot 83 is provided between the periphery of the opening and the front end portion of the cylinder 81. The dust boot 83 is formed with a bellows portion that allows deformation so as not to prevent the free stop checker 80 from swinging.

In FIG. 2, the piston 81 and the rod 82 viewed from the door 1 when the door 1 is half-opened and fully opened are indicated by two-dotted lines. As shown in FIG. 2, the vehicle body side fulcrum P <b> 2 provided on the rod 82 has an arcuate locus with the rotation axis A of the hinge 50 as the center and the inside in the vehicle width direction swells.
In this embodiment, when viewed from the door 1, the door side fulcrum P1, the vehicle body side fulcrum P2 when the door 1 is fully closed, and the vehicle body side fulcrum P2 when the door 1 is fully opened are substantially on the same straight line L. Is arranged.

As shown in FIG. 2, when the door 1 starts to open from the fully closed state, the vehicle body side fulcrum P2 viewed from the door 1 first moves forward while being displaced toward the inner panel 20 side. At this time, the free stop checker 80 swings toward the inner panel 20 around the door side fulcrum P1.
When the door 1 is in a half-open state, the amount of displacement of the vehicle body side fulcrum P2 toward the inner panel 20 becomes maximum, and when the door 1 is further opened from here, the vehicle body side fulcrum P2 starts to displace toward the outer panel 10 side. To do. At this time, the free stop checker 80 swings toward the outer panel 10 around the door side fulcrum P1. When the door 1 is fully opened, the vehicle body side fulcrum P2 returns to the straight line L. At this time, the position (swing angle) of the free stop checker 80 around the door-side fulcrum P1 returns to the same position as when fully closed.

According to the embodiment described above, the door 1 fulcrum P1 of the free stop checker 80, the vehicle body side fulcrum P2 when the door 1 is fully closed, and the vehicle body side fulcrum P2 when the door 1 is fully opened are arranged on a substantially straight line. The swing angle of the free stop checker 80 around the door side fulcrum P1 can be reduced. Further, when the door 1 is fully closed to fully open, the free stop checker 80 swings only inward in the vehicle width direction with respect to the position of the free stop checker 80 when fully closed. The accommodation space of the free stop checker 80 in S can be reduced. This facilitates securing the clearance between the free stop checker 80 and other components.
Moreover, since the holding force change for every opening degree of the door 1 is reduced, the freedom degree which sets a door operation force can be expanded.

(Modification)
The present invention is not limited to the embodiments described above, and various modifications and changes are possible, and these are also within the technical scope of the present invention.
(1) The embodiment is, for example, a front door used for getting on and off the driver's seat and the passenger seat, but the present invention is not limited to this. The present invention can also be applied to a tailgate provided in the section).
(2) In the embodiment, the cylinder of the door checker is connected to the door side and the rod is connected to the vehicle body side, but the cylinder may be connected to the vehicle body side and the rod may be connected to the door side.

It is the typical perspective view which looked at the example of the door structure for vehicles to which the present invention is applied from the side. It is the II-II part arrow sectional drawing of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Door 10 Outer panel 20 Inner panel 30 Door trim 40 Window glass 50 Hinge A Rotating shaft 60 Latch mechanism 70 Side impact beam 80 Free stop checker 81 Cylinder 81a End 82 Rod 82a End 83 Dust boot P1 Door side fulcrum P2 Vehicle side fulcrum 100 Body

Claims (1)

A door that is swingably attached to the vehicle body;
It has a cylinder housed in the door and a rod protruding from the cylinder, one end of which is swingably connected to the door and the other end is swingably connected to the vehicle body. A vehicle door structure comprising: a door checker that expands and contracts in accordance with an opening and closing operation of the door and holds the door at a predetermined position,
A vehicle in which the door side fulcrum of the door checker when viewed from the door, the vehicle body side fulcrum when the door is fully closed, and the position of the vehicle body side fulcrum when the door is fully open are arranged in a substantially straight line. Door structure.

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