JP5447324B2 - Vehicle door structure - Google Patents

Description

  The present invention relates to a vehicle door structure, and more particularly to a vehicle door structure having a composite door in which a slide opening / closing door and a swing opening / closing door are combined.

As a conventional vehicle door structure, for example, there is a vehicle door system disclosed in Patent Document 1.
This vehicle door system has a first door panel and a second door panel, and the first door panel and the second door panel cooperate to close a door opening in the vehicle body.
The first door panel moves relative to the second door panel so that a part of the door opening can be used.
Further, in this vehicle door system, the first door panel and the second door panel move relative to the vehicle body so that the entire door opening can be used.

The first door panel slides along the upper and lower slide tracks provided on the second door panel.
A hinge assembly for connecting the second door panel and the vehicle body is provided, and the second door panel rotates about the hinge assembly as a fulcrum.

JP 2006-240611 A

However, in the prior art, when the first door panel is opened, the first door panel is supported by the upper and lower slide tracks provided on the second door panel.
For this reason, in a state where the first door panel has begun to open, the contact portion of the slide track that supports the first door panel is a small portion as viewed from the entire slide track.
The contact portion of the slide track that supports the first door panel is separated from the center of gravity of the first door panel in the sliding direction.
As a result, a vertical moment based on the weight of the first door panel is generated in the first door panel.
In addition, in the state where the first door panel has begun to be opened, if an external force is applied to the first door panel from the vehicle compartment to the outside of the vehicle, a moment around the horizontal is generated in the first door panel.
In order to support these moments by the slide track or the second door panel that supports the first door panel, it is necessary to increase the rigidity of the slide track or the second door panel.
However, if the slide track or the second door panel is reinforced in order to increase the rigidity, the weights of the first door panel and the second door panel increase, and it becomes difficult to open and close these door panels.
That is, in the prior art, even if the second door panel can be smoothly opened and closed when the first door panel is fully opened, there is a practical problem as a vehicle door structure in terms of rigidity.

  The present invention has been made in view of the above-described problems, and an object of the present invention is for a vehicle that is more rigid than the conventional one and that can smoothly open and close the second door panel when the first door panel is fully opened. Provide door structure.

  In order to solve the above problems, the present invention provides a first door panel that opens and closes a part of a door opening formed in a vehicle body, a second door panel that opens and closes the entire door opening together with the first door panel, A vehicle door structure comprising: a slide mechanism that opens and closes the first door panel by sliding movement; and a hinge mechanism that supports the second door panel that is overlapped with the fully opened first door panel by rotating the shaft. The slide mechanism is provided on the vehicle body along the upper or lower portion of the first door panel in the fully closed state, and is provided on the first door panel and is guided by the first slide rail. A first guide body which is in a state of being detached from or detachable from the first slide rail when the first door panel is fully opened, and the second door panel. And a second guide body provided on the first door panel and supported and guided by the second slide rail, wherein the first door panel is fully closed by the first door panel. A first support that is supported by the vehicle body in a state; a second support that is supported by the second door panel when the first guide body is detached from the first slide rail or in a state where it can be detached; And the second door panel includes a support mechanism for supporting the second support, and the first door panel transitions from the fully closed state to the fully open state, or while the first door panel transitions from the fully open state to the fully closed state. The support of the first door panel switches between support by the first support and support by the second support.

According to the present invention, when the first door panel is slid to the fully open side, the first door panel is supported by the vehicle body via the first support body and is also supported by the second door panel via the second guide body. The
When the first guide body is detached from or can be detached from the first slide rail, the first door panel is disconnected from the vehicle body, and the support mechanism of the second door panel moves the second support body of the first door panel. To support.
The second door panel supports the first door panel through the second guide body and the second support body when the first guide body is detached from the first slide rail or in a state where the first guide body can be detached.
That is, when the first guide body is detached from the first slide rail or in a state where it can be detached, only the second door panel receives the load of the first door panel; otherwise, the vehicle body and the second door panel are the first door panel. It can receive the load of.
The vehicle door structure of the present invention is more rigid than the conventional one, and can smoothly open and close the second door panel when the first door panel is fully opened.

  According to the present invention, in the vehicle door structure described above, the vehicle body can be detached when the vehicle body is in a detached state from the support surface that supports the first support member and the first guide rail from the first slide rail. A gap forming surface that forms a gap between the first support and the vehicle body in a state may be provided.

In this case, when the first guide body is detached from the first slide rail or in a state where the first guide body can be detached, a gap is formed between the first support body and the vehicle body, so the first slide rail of the first guide body is formed. The first door panel supported by the vehicle body and the second door panel before the detachable state or the detachable state is supported by the second door panel via the second guide body and the second support body.
Therefore, the first door panel can be supported by the second door panel when the first guide body is detached from the first slide rail or when the first guide body can be detached.
In addition, since a gap is formed between the first support body and the vehicle body, the first support body is not in sliding contact with the vehicle body when the second door panel is opened and closed, and the second door panel is smoothly opened and closed. be able to.

  According to the present invention, in the vehicle door structure described above, the first slide rail is provided on the vehicle body along the upper portion of the fully closed first door panel, and is provided below the second slide rail. A third slide rail and a third slide rail provided on the first door panel, guided by the third slide rail, and in a state of being detached or removable from the third slide rail when the first door panel is fully opened. A first support member is a vertical roller provided in the first door panel, and a second support member is a first arm provided with the first guide member and fixed to the first door panel. There may be.

In this case, the support mechanism of the second door panel supports the first arm provided with the first guide body when the first guide body is detached from the first slide rail or in a state where the first guide body can be detached.
Therefore, by using the first arm as the second support, there is no need to separately provide a member constituting the second support on the first door panel.

  According to the present invention, in the vehicle door structure described above, the first slide rail is provided on the vehicle body along the upper portion of the fully closed first door panel, and is provided below the second slide rail. A third slide rail and a third slide rail provided on the first door panel, guided by the third slide rail, and in a state of being detached or removable from the third slide rail when the first door panel is fully opened. A first support member is a vertical roller provided in the first door panel, and a second support member is a third arm provided with the third guide member and fixed to the first door panel. There may be.

In this case, the support mechanism of the second door panel supports the third arm provided with the third guide body when the first guide body is detached from the first slide rail or in a state where it can be detached.
Therefore, by using the third arm as the second support, it is not necessary to provide a member constituting the second support separately on the first door panel.
Even when the first arm cannot be used as the second support, the second support can be provided on the first door panel.

  In the present invention, in the above vehicle door structure, the support mechanism may include a support roller that receives the second support.

In this case, immediately before the first guide body is detached from the first slide rail or immediately before it can be detached, the support roller abuts against the second support body by the sliding movement of the first door panel, and rolls. When the first guide body is detached from the first slide rail or in a state where it can be detached, the support roller supports the second support body.
As the support roller rolls relative to the second support, the support mechanism can smoothly support the moving second support.

  According to the present invention, in the vehicle door structure described above, the vehicle body includes a buffer member that absorbs an impact caused by a collision with the first door panel when sliding to the fully open side, and the first guide body includes the first guide body, A contact surface capable of coming into contact with the buffer member, the buffer member having a receiving surface contacting the contact surface, the receiving surface being inclined from front to back, and the contact surface being the receiving surface; It may be inclined so as to be in surface contact with the surface.

In this case, even if the first door panel is vigorously slid in the fully closed direction and the contact surface of the first door panel collides with the receiving surface of the buffer member, the buffer member absorbs the impact at the time of the collision.
Further, since the receiving surface is inclined from the front to the rear, when the second door panel swings, the second door panel can smoothly swing without interfering with the cushioning member and the swing elements such as the second door panel. Can be opened and closed.

  The present invention can provide a vehicle door structure that is more rigid than the conventional one and that can smoothly open and close the second door panel when the first door panel is fully open.

1 is a side view of a vehicle provided with a vehicle door structure according to a first embodiment of the present invention. It is an AA arrow directional view in FIG. (A) is an enlarged plan view of an upper arm, (b) is an EE arrow directional view in (a). FIG. 3 is a view taken along line DD in FIG. 2. It is a BB line arrow directional view in FIG. FIG. 6 is a view taken along line F-F in FIG. 5. It is a CC arrow view in FIG. (A) is an enlarged plan view of a lower arm, (b) is a JJ line arrow view in (a). (A) is a GG arrow directional view in FIG. 7, (b) is a HH arrow directional view in FIG. (A) is a side view which shows the 1st door panel of the state which begins to open, (b) is a side view which shows the 1st door panel of a full open state. It is a perspective view which shows the 2nd door panel of a full open state. (A) is a top view which shows the principal part of the door structure for vehicles which concerns on 2nd Embodiment, (b) is a KK arrow directional view in (a). (A) is a top view which shows the principal part of the door structure for vehicles which concerns on 3rd Embodiment, (b) is the LL arrow directional view in (a).

(First embodiment)
Hereinafter, the vehicle door structure according to the first embodiment will be described with reference to the drawings.
1st Embodiment is an example which applied the door structure for vehicles to the side part of the vehicle body.
In FIG. 1, the left side is the front and the right side is the rear.
As shown in FIG. 1, a front door opening 12 located on the side of the front seat and a rear door opening 13 located behind the front seat are formed on the side surface of the vehicle body 11.
In addition, the front, back, front end, rear end, front edge, and rear edge in this specification are based on the front-rear direction of the vehicle body.

The front door opening 12 is opened and closed by a front door panel 14.
A hinge mechanism 15 for connecting the front door panel 14 and the vehicle body 11 is provided. The hinge mechanism 15 has a vertical fulcrum shaft (not shown), and the front door panel 14 can swing around the fulcrum shaft. The door opening 12 is opened and closed.
A front door lock mechanism 16 that connects the front door panel 14 that fully closes the front door opening 12 and the vehicle body 11 is provided.
The front door lock mechanism 16 includes a latch (not shown) and a door lock striker (not shown), and the front door panel 14 is kept fully closed by coupling the latch and the door lock striker.
When the front door panel 14 in a state where the front door opening 12 is fully closed is opened from the outside of the vehicle, the front door panel 14 is opened by operating the outer handle 17.
When the fully closed front door panel 14 is opened from inside the vehicle, the front door panel is opened by operating the inner handle 18.

The rear door opening 13 is formed on the side of a luggage compartment provided behind the front seat.
The rear door opening 13 is opened and closed by a vehicle door mechanism including a first door panel 21 that is a slide opening and closing type and a second door panel 22 that is a swing opening and closing type.
Here, in the rear door opening 13, a region where the first door panel 21 is closed is referred to as a first door opening region 13A, and a region where the second door panel 22 is closed is referred to as a second door opening region 13B.
The first door panel 21 slides back and forth to open and close the first door opening area 13 </ b> A, and is positioned outside the second door panel 22 and overlaps the second door panel 22 in the fully opened state.
The first door panel 21 slides back and forth with respect to the vehicle body 11 and the second door panel 22 via a slide mechanism.

The slide mechanism includes an upper slide rail 23 as a first slide rail, an intermediate slide rail 40 as a second slide rail, and a lower slide rail 55 as a third slide rail.
The slide mechanism includes a first guide body 26 guided by the upper slide rail 23, a second guide body 35 guided by the intermediate slide rail 40, and a third guide body 45 guided by the lower slide rail 55. It has.

As shown in FIGS. 2 and 3A, the first guide body 26 is attached to an upper arm 27 as a first arm provided toward the vehicle body 11 near the front edge of the upper portion of the first door panel 21. Is provided.
The base portion of the upper arm 27 is fixed to the first door panel 21, and the tip of the upper arm 27 is directed toward the vehicle interior side.
A guide groove 28 that cuts forward from the rear end side is formed in the middle between the tip and base of the upper arm 27.
A latch 29 is provided in front of the guide groove 28 on the upper surface of the upper arm 27.
A base side protrusion 27A protruding backward is formed on the base side of the guide groove 28 in the upper arm 27, and a tip side protrusion 27B protruding rearward is formed on the tip side of the guide groove 28 in the upper arm 27. Yes.
As shown in FIG. 3B, the upper arm 27 is provided substantially horizontally, but is formed so that the rear ends of the base-side protruding portion 27A and the tip-side protruding portion 27B face upward.
In addition, illustration of the 1st door panel 21 is abbreviate | omitted in FIG.3 (b).
As shown in FIG. 3A, the rear end of the upper arm 27 from the front end side protruding portion 27B to the front end forms an inclined rear end edge 27C that is inclined with respect to the left-right direction of the vehicle body 11, and The end edge 27C is inclined so that the distal end side is positioned forward of the base side.

As shown in FIGS. 2 to 4, the first guide body 26 includes a horizontal roller 30 that is guided by the upper slide rail 23.
The horizontal roller 30 is provided on the upper arm 27 via a bracket 31, and the horizontal roller 30 is positioned in front of the tip of the upper arm 27.
The axis of the shaft portion 30A of the horizontal roller 30 is vertical.
The upper arm 27 including the first guide body 26 corresponds to a second support body.

The upper slide rail 23 is provided on the roof side rail ceiling portion of the vehicle body 11 above the first door opening area 13A so as to be along the upper portion of the fully closed first door panel 21.
The upper slide rail 23 is a rail that guides the first guide body 26 provided in the first door panel 21, and restricts the movement of the first guide body 26 in the left-right direction of the vehicle.
As shown in FIG. 4, the upper slide rail 23 includes a rail upper surface portion 23A and rail side surface portions 23B and 23C.
The horizontal roller 30 between the rail side surfaces 23B and 23C rolls according to the sliding movement of the first door panel 21.
The rail side surfaces 23B and 23C restrict the movement of the horizontal roller 30 in the left-right direction of the vehicle.

As shown in FIG. 2, the longitudinal direction of the upper slide rail 23 coincides with the longitudinal direction of the vehicle, and the front end of the upper slide rail 23 is in the vicinity of the pillar 19 positioned between the front door panel 14 and the first door panel 21. The rear end of the upper slide rail 23 reaches the vicinity of the front edge of the second door panel 22.
In a certain range near the front end of the upper slide rail 23, a curved rail portion 24 in which the upper slide rail 23 is curved is formed.
When the first door panel 21 that overlaps the second door panel 22 is slid and closed, the first guide body 26 is guided by the curved rail portion 24, and the outer surface of the first door panel 21 is flush with the outer surface of the second door panel 22. The first door opening area 13 </ b> A is covered with the first door panel 21.
As shown in FIG. 2, the rear end of the upper slide rail 23 is open.
As shown in FIGS. 3A and 3B, when the first guide body 26 is located behind the rear slide of the upper slide rail 23, the upper slide rail 23 is separated from the vehicle body 11 side. The first guide body 26 from is detached.

As shown in FIGS. 1 and 6, the second guide body 35 is an intermediate arm 36 as a second arm provided toward the vehicle body 11 near the rear edge of the intermediate portion in the vertical direction of the first door panel 21. Is provided at the tip.
As shown in FIG. 6, the second guide body 35 includes a vertical roller 38 guided by the intermediate slide rail 40 and a pair of front and rear horizontal rollers 39 (only the front horizontal roller 39 is shown in FIG. 6). ing.
The shaft center of the shaft portion 38A of the vertical roller 38 is horizontal, and the shaft center of the shaft portion 39A of the horizontal roller 39 is vertical.
The intermediate arm 36 is provided so as to be rotatable in the horizontal direction with respect to the first door panel 21 with the rotation shaft 37 as a fulcrum.

Next, the intermediate slide rail 40 will be described.
The intermediate slide rail 40 is provided at an intermediate portion in the vertical direction on the outer surface of the second door panel 22, and the longitudinal direction of the intermediate slide rail 40 coincides with the longitudinal direction of the vehicle.
As shown in FIG. 5, the front end of the intermediate slide rail 40 is located at the front edge of the second door panel 22, and the rear end of the intermediate slide rail 40 reaches the rear edge of the second door panel 22.
That is, the intermediate slide rail 40 is provided so as to cross the outer surface of the second door panel 22 in the front-rear direction.

The intermediate slide rail 40 is a rail that guides the second guide body 35 provided in the first door panel 21, and restricts the movement of the second guide body 35 in the vertical direction and the left-right direction of the vehicle.
As shown in FIG. 6, the intermediate slide rail 40 includes a rail upper surface portion 40A, a rail lower surface portion 40B, a rail side surface portion 40C, and a rail outer edge portion 40D, and has a substantially U-shaped cross section. .
In a certain range on the front end side of the intermediate slide rail 40, a curved rail portion 41 where the intermediate slide rail 40 is curved is set.
Since the curved rail portion 41 is set, the outer surface of the first door panel 21 is flush with the outer surface of the second door panel 22 when the first door panel 21 overlapping the second door panel 22 is slid and closed. The first door opening area 13 </ b> A is covered with the first door panel 21.
The degree of curvature of the curved rail portion 41 of the intermediate slide rail 40 is set larger than the degree of curvature of the curved rail portion 24 of the upper slide rail 23.
By rotating the intermediate arm 36 with respect to the second door panel 22, the second guide body 35 smoothly slides on the intermediate slide rail 40 including the curved rail portion 41.

As shown in FIGS. 1 and 7, the third guide body 45 is a lower arm as a third arm provided across the step 52 toward the vehicle body 11 near the lower front edge of the first door panel 21. 46 is provided at the front end.
The lower arm 46 is extended toward the vehicle body 11, the base of the lower arm 46 is fixed to the first door panel 21, and the tip of the lower arm 46 is directed into the vehicle.
As shown in FIGS. 7 and 8A, a guide groove 47 is formed in the middle between the tip and the base of the lower arm 46 so as to cut forward from the rear end side.
As shown in FIG. 8B, a latch 48 is provided on the front side of the guide groove 47 on the lower surface of the lower arm 46.
In addition, illustration of the 1st door panel 21 is abbreviate | omitted in FIG.8 (b).
As shown in FIGS. 9A and 9B, the third guide body 45 includes a vertical roller 49 and a horizontal roller 50 that are guided by the lower slide rail 55.
The vertical roller 49 and the horizontal roller 50 are provided on the lower arm 46 via the bracket 51.
The axis of the shaft 49A of the vertical roller 49 is horizontal, and the axis of the shaft 50A of the horizontal roller 50 is vertical.
The vertical roller 49 of the third guide body 45 corresponds to a first support body supported by the vehicle body 11.

Next, the lower slide rail 55 as the third slide rail will be described.
As shown in FIG. 7, the lower slide rail 55 is provided on the floor side of the vehicle body 11 below the first door opening area 13A so as to be along the lower portion of the first door panel 21 in the fully closed state.
The lower slide rail 55 guides the third guide body 45 of the first door panel 21 and regulates the movement of the third guide body 45 in the vertical direction and the left-right direction of the vehicle.
As shown in FIGS. 9A and 9B, the lower slide rail 55 includes a rail upper surface portion 55A and rail side surface portions 55B and 55C, similarly to the upper slide rail 23.
The vertical roller 49 below the rail upper surface portion 55 </ b> A is moved according to the sliding movement of the first door panel 21.
The rail side surfaces 55B and 55C restrict the movement of the horizontal roller 50 in the left-right direction of the vehicle.

As shown in FIG. 7, the longitudinal direction of the lower slide rail 55 coincides with the longitudinal direction of the vehicle, and the front end of the lower slide rail 55 is in the vicinity of the pillar 19 located between the front door panel 14 and the first door panel 21. The rear end of the lower slide rail 55 reaches the vicinity of the front edge of the second door panel 22.
In a certain range near the front end of the lower slide rail 55, a curved rail portion 56 in which the lower slide rail 55 is curved is formed.
When the first door panel 21 overlapping the second door panel 22 is slid and closed, the third guide body 45 is guided by the curved rail portion 56, and the outer surface of the first door panel 21 is flush with the outer surface of the second door panel 22. The first door opening area 13 </ b> A is covered with the first door panel 21.
The rear end of the lower slide rail 55 is open, and the third guide body from the lower slide rail 55 is separated from the vehicle body 11 side in a state where the third guide body 45 is in a position separated from the lower slide rail 55. 45 is possible.

As shown in FIGS. 8B and 9A, a support surface 57 that receives the vertical roller 49 is formed on the step 52 side of the vehicle body 11.
Further, as shown in FIGS. 8B and 9B, a gap S is formed on the rear side of the support surface 57 between the third guide body 45 and the vehicle body 11 when the first door panel 21 is fully opened. The gap forming surface 58 is provided.

When the first door panel 21 is fully opened and overlaps the second door panel 22, the second door panel 22 rotates with respect to the vehicle body via the hinge mechanism 60.
As shown in FIGS. 1 and 5, the hinge mechanism 60 connects the second door panel 22 and the vehicle body 11. In this embodiment, in the rear pillar 62, the vicinity of the intermediate slide rail 40 of the second door panel 22, and the second door panel. 22 is provided in the vicinity of the lower portion.
The hinge mechanism 60 includes a vertical fulcrum shaft 61, and the second door panel 22 rotates about the fulcrum shaft 61 as a fulcrum to open and close the rear door opening 13.

In the vehicle door structure, a second door opening / closing restriction mechanism 63 that connects the vehicle body 11 and the second door panel 22 that fully closes the second door opening area 13B is provided.
In this embodiment, as shown in FIG. 1, second door opening / closing regulating mechanisms 63 are provided at positions corresponding to the upper and lower portions of the second door panel 22, respectively.
The second door opening / closing regulating mechanism 63 includes a latch (not shown) provided on the second door panel 22 and a door lock striker (not shown) provided on the vehicle body 11, and the latch and the door lock striker are connected to each other. The second door panel 22 is kept fully closed.
An opening / closing handle 64 is provided at the front edge of the second door panel 22.
By operating the opening / closing handle 64, the connection of the second door opening / closing regulating mechanism 63 can be released, and the second door panel 22 can be opened / closed.
The opening / closing handle 64 can be uncoupled from the second door opening / closing regulating mechanism 63 only when the first door panel 21 is fully opened and overlapped with the second door panel 22 and the second door panel 22 is fully closed.
That is, when the first door panel 21 is in a state other than the fully open state, the second door opening / closing regulating mechanism 63 is not released even if the opening / closing handle 64 is operated.

By the way, as shown in FIG. 1, the 1st door opening / closing control mechanism 65 which connects the 1st door panel 21 and the 2nd door panel 22 of a fully closed state is provided.
The first door opening / closing regulating mechanism 65 includes a latch (not shown) provided at the rear edge of the first door panel 21 and a door lock striker (not shown) provided at the front edge of the second door panel 22. .
When the first door panel 21 is fully closed and the latch of the first door opening / closing restriction mechanism 65 and the door lock striker are connected, the sliding movement of the first door panel 21 with respect to the vehicle body 11 and the second door panel 22 is restricted.
An outer handle 66 is provided on the outer surface of the first door panel 21, and an inner handle 67 is provided on the inner surface of the first door panel 21.
The outer handle 66 and the inner handle 67 can release the connection of the first door opening / closing restriction mechanism 65.

On the other hand, a slide restricting mechanism 70 that connects the upper part of the first door panel 21 and the upper part of the second door panel 22 in a fully opened state is provided.
As shown in FIGS. 3A and 3B, the slide restricting mechanism 70 of this embodiment includes a latch 29 provided on the upper arm 27 on the first door panel 21 side and a door lock provided on the second door panel 22. The striker 71 is used.
A door lock striker 71 is provided on the front edge side of the second door panel 22, and the door lock striker 71 is inserted into the guide groove 28 of the upper arm 27.
A latch 29 on the upper surface of the upper arm 27 locks the door lock striker 71 reaching the innermost part of the guide groove 28.

Further, a slide restricting mechanism 72 that connects the lower part of the first door panel 21 and the lower part of the second door panel 22 in a fully opened state is provided.
As shown in FIGS. 8A and 8B, the slide restricting mechanism 72 of this embodiment includes a latch 48 provided on the lower arm 46 on the first door panel 21 side and a door lock provided on the second door panel 22. It consists of a striker 73.
A door lock striker 73 is provided on the front edge side of the second door panel 22, and the door lock striker 73 is inserted into the guide groove 47 of the lower arm 46.
A latch 48 on the lower surface of the lower arm 46 locks the door lock striker 73 reaching the innermost part of the guide groove 47.
The first door panel 21 is fully opened, and the slide movement of the first door panel 21 relative to the second door panel 22 is restricted by the slide restriction mechanisms 70 and 72.

The slide restricting mechanisms 70 and 72 have a function of restricting the movement of the first door panel 21 in the left-right direction with respect to the second door panel 22.
The slide restriction mechanisms 70 and 72 can be released by operating the outer handle 66 and the inner handle 67 provided on the first door panel 21 only when the second door opening / closing restriction mechanism 63 is not released. It is comprised so that it may become.
For this reason, when the second door panel 22 is open, the slide restricting mechanisms 70 and 72 cannot be released.

In this embodiment, the second door panel 22 is provided with a support mechanism 75 that receives the upper arm 27 when the first guide body 26 is detached from the upper slide rail 23.
As shown in FIGS. 2 and 3B, the support mechanism 75 includes a support roller 76 provided via a bracket 77 in the vicinity of the door lock striker 71 of the second door panel 22. The axis of the portion 76A is horizontal.
The support roller 76 protrudes forward from the second door panel 22, and the support roller 76 is positioned in the front-rear direction so that the horizontal roller 30 receives the upper arm 27 immediately before being detached from the rear end of the upper slide rail 23. Has been.

Furthermore, in this embodiment, as shown in FIGS. 2 and 3A, the vehicle body 11 includes a buffer member 78 that absorbs an impact caused by a collision with the first door panel 21 when sliding to the fully open side. .
The buffer member 78 is made of an elastic rubber-based material or resin-based material, and is fixed to the vehicle body 11 so as to protrude rearward and forward of the upper slide rail 23.
The inclined rear edge 27 </ b> C of the upper arm 27 is an edge that comes into contact with the buffer member 78 provided on the vehicle body, and corresponds to a contact surface that can come into contact with the buffer member 78.
The buffer member 78 has an inclined surface 78A as a receiving surface that contacts the inclined rear edge 27C.
The inclined surface 78A is inclined from the front to the rear in the same manner as the inclined rear edge 27C, and the inclined rear edge 27C is in surface contact with the inclined surface 78A.
When the inclined rear end edge 27C is inclined, interference between the buffer member 78 and the upper arm 27 is avoided when the second door panel 22 is swing-opened.
Therefore, an inclination angle (an inclination angle with respect to the left-right direction of the vehicle) is set on the inclined rear edge 27C and the inclined surface 78A according to the position of the fulcrum shaft 61 of the second door panel 22 that is swing-opened.
In particular, as the position of the fulcrum shaft 61 serving as the fulcrum for swing opening and closing of the second door panel 22 is located on the vehicle inner side, it is necessary to increase the inclination angles of the inclined rear end edge 27C and the inclined surface 78A in order to avoid interference. Yes, the inclination angle can be reduced as the position of the fulcrum shaft 61 is located on the vehicle outer side.

Next, the operation of the vehicle door structure of this embodiment will be described.
First, a case where the first door panel 21 is fully opened from the state where the first door panel 21 and the second door panel 22 are fully closed, that is, the state where the rear door opening 13 is covered will be described.
When the first door panel 21 shown in FIG. 1 is fully closed, the first door panel 21 is supported by the surrounding vehicle body 11 and the second door panel 22.
Further, the first door opening / closing restriction mechanism 65 is in a state of restricting sliding movement of the first door panel 21 with respect to the second door panel 22.
Further, the second door opening / closing restriction mechanism 63 is in a state of restricting the opening / closing of the second door panel 22 with respect to the vehicle body 11.
In this embodiment, the center of gravity G of the first door panel 21 exists at substantially the center of the first door panel 21.

By operating the outer handle 66 or the inner handle 67, the first door panel 21 slides backward.
The first guide body 26 is guided by the upper slide rail 23, the second guide body 35 is guided by the intermediate slide rail 40, and the third guide body 45 is guided by the lower slide rail 55.
At the beginning of the opening of the first door panel 21, the guide bodies 26, 35, 45 are guided by the corresponding curved rail portions 24, 41, 56, so that the first door panel 21 slides backward while going outward.
When the first door panel 21 starts to open from the fully closed state shown in FIG. 10A, the vicinity of the front edge of the first door panel 21 is connected to the vehicle body 11 via the first guide body 26 and the third guide body 45. The vicinity of the rear edge of the first door panel 21 is connected to the second door panel 22 via the second guide body 35.

In this state, the third guide body 45 guided by the lower slide rail 55 and the second guide body 35 guided by the intermediate slide rail 40 are positioned so as to sandwich the center of gravity G of the first door panel 21 in the sliding direction. Each exists.
Since the third guide body 45 is present in front of the center of gravity G and the second guide body 35 is present behind the center of gravity G, the moment due to the own weight generated in the first door panel 21 can be favorably received.

Further, the first guide body 26 and the third guide body 45 are present near the front edge of the first door panel 21, and the second guide 35 is present near the rear edge of the first door panel 21.
For this reason, for example, even if an external force (in a direction perpendicular to the sliding direction of the first door panel 21) is applied from the inside of the vehicle to the outside of the vehicle on the first door panel 21 that is in the state of opening, the front edge of the first door panel 21 Since the guide bodies 26, 35, and 45 are located near the vicinity and the vicinity of the rear end edge, the moment due to the external force can be favorably received.

When the first door panel 21 in the state of starting to open is slid rearward, the first door panel 21 keeps overlapping with the second door panel 22, and the first door opening area 13A expands as the first door panel 21 slides. To do.
When the sliding movement toward the opening side of the first door panel 21 is continued, the first guide body 26 is guided by the upper slide rail 23 and approaches the rear end of the upper slide rail 23.
Similarly, when the sliding movement toward the opening side of the first door panel is continued, the third guide body 45 is guided by the lower slide rail 55 and approaches the rear end of the lower slide rail 55.
When the first guide body 26 is guided by the upper slide rail 23 and when the third guide body 45 is guided by the lower slide rail 55, the vehicle body 11 and the second door panel 22 receive the load of the first door panel 21.
That is, the second door panel 22 receives a part of the load of the first door panel 21 via the vertical roller 38 of the second guide body 35, and the vehicle body 11 is perpendicular to the third guide body 45 rolling on the support surface 57. The remaining load of the first door panel 21 is received via the roller 49.

In this embodiment, when the first door panel 21 is fully opened, the load of the first door panel 21 is received so that the second door panel 22 receives a part of the load of the first door panel 21 received by the vehicle body 11 before the fully open. A move is made.
When the first guide body 26 reaches the vicinity of the rear end of the upper slide rail 23, the striker 71 enters the guide groove 28 of the upper arm 27 that slides, and the movement of the first door panel 21 in the left-right direction is restricted.
Furthermore, as the sliding movement of the first door panel 21 continues, the upper arm 27 that slides moves on the support roller 76.
When the upper arm 27 rides on the support roller 76, the rear end of the base side protrusion 27A and the tip end protrusion 27B is formed so as to face upward. Easy to ride.
After the upper arm 27 rides on the support roller 76, the vertical roller 49 of the third guide body 45 moves away from the support surface 57 and moves above the gap forming surface 58, and between the vertical roller 49 and the gap forming surface 58. A gap S is formed in the.
After the vertical roller 49 moves above the gap forming surface 58, the horizontal roller 30 is detached from the upper slide rail 23 and the horizontal roller 50 is separated from the lower slide rail 55.

Thus, in this embodiment, the vehicle body 11 and the second door panel 22 receive the load of the first door panel 21 via the vertical rollers 38 and 49 until the first door panel 21 is fully opened.
A part of the load of the first door panel 21 received by the vehicle body 11 via the vertical roller 49 is caused by the upper arm 27 riding on the support roller 76 while the first door panel 21 is fully opened. Move to the door panel 22 side.

By the way, as shown in FIG.10 (b), when the 1st door panel 21 slides completely, the 1st door opening area 13A will become the maximum, and the 1st door panel 21 will be in a fully open state.
When the first door panel 21 is fully opened, the latch 29 provided on the upper arm 27 of the first door panel 21 is a door lock provided on the second door panel 22 as shown in FIGS. 3 (a) and 3 (b). Connect to the striker 71.
The interconnection of the latch 29 and the door lock striker 71 constituting the slide restricting mechanism 70 restricts the sliding movement of the first door panel 21 relative to the second door panel 22 and the movement in the left-right direction in the vehicle.

When the first door panel 21 is completely slid rearward, the latch 48 provided on the lower arm 46 of the first door panel 21 is moved to the second door panel 22 as shown in FIGS. 8 (a) and 8 (b). It connects with another door lock striker 73 provided in.
The interconnection of the latch 48 and the door lock striker 73 constituting the slide restricting mechanism 72 restricts the sliding movement of the first door panel 21 relative to the second door panel 22 and the movement in the left-right direction in the vehicle.
Incidentally, when the first door panel 21 is slid swiftly, the upper arm 27 collides with the buffer member 78, and the shock at the time of the collision is absorbed by the buffer member 78.

By the way, when the first door panel 21 is completely slid and moved, the first guide body 26 is detached from the upper slide rail 23.
The first guide body 26 is guided to the upper slide rail 23 until the first door panel 21 is fully opened.
Rail side surfaces 23B and 23C of the upper slide rail 23 restrict the movement of the horizontal roller 30 in the first guide 26 in the left-right direction of the vehicle.
For this reason, the first guide body 26 is not detached from the upper slide rail 23 until the first door panel 21 is fully opened.
Further, when the first door panel 21 is completely slid, the third guide body 45 is in a state of being detached from the lower slide rail 55.

Since the rear end of the intermediate slide rail 40 is not opened like the upper slide rail 23 and the lower slide rail 55, the second guide body 35 is provided with the intermediate slide even when the first door panel 21 is fully opened. The rail outer edge portion 40 </ b> D of the intermediate slide rail 40 prevents the second guide body 35 from detaching without detaching from the rail 40.
As described above, when the first door panel 21 is fully opened, the first guide body 26 and the third guide body 45 are disconnected from the vehicle body 11, and the first door panel 21 and the second door panel 22 are not connected. The second guide body 35 and the intermediate slide rail 40 are connected to each other and the two slide restricting mechanisms 70 and 72 are connected to each other.
By operating the outer handle 66 or the inner handle 67 from this state, the connection of the slide restricting mechanisms 70 and 72 is released, and the first door panel 21 can be slid in the closing direction.

When the first door panel 21 is fully open and overlaps the second door panel 22, the connection between the vehicle body 11 and the second door panel 22 by the second door opening / closing restriction mechanism 63 can be released by operating the opening / closing handle 64. It is.
By releasing the connection of the second door opening / closing restriction mechanism 63, the second door panel 22 can be opened with respect to the vehicle body 11 by the shaft rotation about the fulcrum shaft 61 via the hinge mechanism 60.
In the opening and closing of the second door panel 22 via the hinge mechanism 60, the opening and closing of the second door panel 22 is followed with the first door panel 21 overlapping the second door panel 22.
As shown in FIG. 11, the second door panel 22 can be opened at a substantially right angle with respect to the vehicle body 11. When the second door panel 22 is opened at a substantially right angle, the second door opening area 13B is fully opened, It will be in the state opened as the door opening part 13. FIG.

When the fully opened second door panel 22 is closed and the second door opening / closing restriction mechanism 63 restricts the opening / closing of the second door panel 22 with respect to the vehicle body 11, the connection of the slide restriction mechanisms 70, 72 by the operation of the outer handle 66 may be released. it can.
After releasing the connection of the slide restricting mechanisms 70 and 72, the first door panel 21 closes the first door opening area 13A and is fully closed by sliding the first door panel 21 forward.

This embodiment has the following effects.
(1) When the first door panel 21 is slid to the fully open side, the first door panel 21 is supported by the vehicle body 11 via the vertical roller 49 that rolls on the support surface 57, and via the second guide body 35. Supported by the second door panel 22. When the first guide body 26 is detached from the upper slide rail 23, the first door panel 21 is disconnected from the vehicle body 11, and the support mechanism 75 of the second door panel 22 supports the upper arm 27 of the first door panel 21. To do. When the first guide body 26 is detached from the upper slide rail 23, the second door panel 22 supports the first door panel 21 through the second guide body 35 and the upper arm 27. That is, when the first guide body 26 is detached from the upper slide rail 23, only the second door panel 22 receives the load of the first door panel 21, and otherwise, the vehicle body 11 and the second door panel 22 are connected to the first door panel 21. Can receive a load. Therefore, the vehicle door structure of this embodiment is more rigid than the conventional one, and can smoothly open and close the second door panel 22 when the first door panel 21 is fully opened.
(2) Since the gap S is formed between the vertical roller 49 and the vehicle body 11 when the first guide body 26 is detached from the upper slide rail 23, the first guide body 26 is not detached from the upper slide rail 23. The first door panel 21 supported by the vehicle body and the second door panel 22 is supported by the second door panel 22 via the second guide body 35 and the upper arm 27. Accordingly, the first door panel 21 can be supported by the second door panel 22 when the first guide body 26 is detached from the upper slide rail 23. Further, since the gap S is formed between the vertical roller 49 and the vehicle body 11, the vertical roller 49 does not slidably contact the vehicle body 11 when the second door panel 22 swings and opens, and the second door panel 22 can be smoothly swung. Can be opened and closed.

(3) The support mechanism 75 of the second door panel 22 supports the upper arm 27 including the first guide body 26 when the first guide body 26 is detached from the upper slide rail 23. Therefore, by using the upper arm 27 as the second support body, it is not necessary to separately provide the first door panel 21 with a member constituting the second support body.
(4) Immediately before the first guide body 26 is detached from the upper slide rail 23, the support roller 76 is brought into contact with the upper arm 27 by the sliding movement of the first door panel 21 and rolls. When 26 is detached from the upper slide rail 23, the support roller 76 supports the upper arm 27. As the support roller 76 rolls with respect to the upper arm 27, the support mechanism 75 can smoothly support the moving upper arm 27.
(5) The first door panel 21 is vigorously slid in the fully closed direction, and even if the inclined rear edge 27C of the first door panel 21 collides with the inclined surface 78A of the buffer member 78, the buffer member 78 absorbs the shock at the time of the collision. To do. Further, since the inclined surface 78A is inclined from the front to the rear, there is no interference between the cushioning member 78 and the swing element such as the upper arm 27 that prevents smooth swing opening and closing when the second door panel 22 is opened and closed. Smooth opening and closing of the second door panel 22 can be performed. Further, since the buffer member 78 is fixed to the vehicle body 11, for example, the durability against shock is excellent as compared with the case where the same type of buffer member is provided on the slide rail.

(6) The third guide body 45 guided by the lower slide rail 55 and the second guide body 35 guided by the intermediate slide rail 40 are located on both sides in the sliding direction of the center of gravity G of the first door panel 21, and The third guide body 45 supports the first door panel 21. For this reason, since the moment which generate | occur | produces in the 1st door panel 21 can be supported not only in the 2nd door panel 22 but in the vehicle body 11 side, the increase in the weight of the intermediate slide rail 40 regarding the reinforcement and the 2nd door panel 22 is prevented. Can do. When the first door panel 21 is in the fully opened state, the first guide body 26 is detached from the upper slide rail 23, so that the second door panel 22 is placed together with the stacked first door panel 21 via the hinge mechanism 60. Can be rotated. Further, even when the first door panel 21 starts to open, the moment due to the own weight generated in the first door panel 21 can be satisfactorily received. Moreover, it can receive well also about the moment by the external force which goes to a vehicle exterior from a vehicle interior.
(7) The first door panel 21 and the second door panel 22 are connected to each other by the slide restriction mechanisms 70 and 72 when the first door panel 21 is fully opened. As a result, even when the first guide body 26 is detached from the upper slide rail 23, the first door panel 21 and the second door panel 22 are prevented from separating in the direction perpendicular to the sliding direction.

(8) Since the slide regulating mechanisms 70 and 72 regulate the sliding movement of the first door panel 21 when the second door panel 22 is opened, the sliding movement of the first door panel 21 is prevented when the second door panel 22 is opened and closed. Can do.
(9) The first guide body 26 of the first door panel 21 is guided by the upper slide rail 23, the third guide body 45 is guided by the lower slide rail 42, and the second guide body 35 is guided by the intermediate slide rail 40. . Since the upper and lower parts of the first door panel 21 are supported by the vehicle body 11, the stability of the vehicle body 11 when the first door panel 21 is opened and closed is improved.

(Second Embodiment)
Next, a vehicle door structure according to a second embodiment will be described.
This embodiment differs from the first embodiment in that a support mechanism is provided on the lower side of the second door panel, and the second support supported by the support mechanism is a lower arm.
In 2nd Embodiment, about the element which is common in 1st Embodiment, the description of 1st Embodiment is used and a code | symbol is also used in common.

The principal part of the vehicle door structure according to the second embodiment is shown in FIG.
As shown in FIG. 12, a support mechanism 81 that supports the lower arm 46 as the third arm is provided on the lower side of the second door panel 21 when the first guide body 26 is detached from the upper slide rail 23. Yes.
Therefore, the lower arm 46 corresponds to a second support.
The support mechanism 81 includes a support roller 82 provided via a bracket 83 in the vicinity of the door lock striker 73 of the second door panel 22, and the shaft center (not shown) of the support roller 82 has a horizontal axis. .
The support roller 82 protrudes forward from the second door panel 22, and the support roller 82 is positioned in the front-rear direction so that the horizontal roller 50 receives the lower arm 46 immediately before it is detached from the rear end of the upper slide rail 23. Has been.
Note that the support mechanism 75 as in the first embodiment is not provided on the upper side of the second door panel 22.
In this embodiment, the vertical roller 49 corresponds to the first support as in the first embodiment.

According to this embodiment, substantially the same operational effects as the first embodiment can be obtained.
Further, according to this embodiment, even if the support mechanism 75 cannot be provided on the upper side of the second door panel 22 due to space restrictions or the like, the support mechanism 81 is provided on the lower side of the second door panel 22. Can do.

(Third embodiment)
Next, a vehicle door panel structure according to a third embodiment will be described.
This embodiment is different from the first embodiment in that the first guide body is provided with a vertical roller, the vertical roller corresponds to the second support body, and the structure of the support mechanism.
In 3rd Embodiment, about the element which is common in 1st Embodiment, the description of 1st Embodiment is used and a code | symbol is also used in common.

The principal part of the vehicle door structure according to the third embodiment is shown in FIGS. 13 (a) and 13 (b).
As shown in FIG. 13 (a), the vehicle door structure of this embodiment includes a slide opening / closing first door panel 90 and a swing opening / closing second door panel 91.
The first door panel 90 has an upper arm 95 provided with a first guide body 94.
The first guide body 94 includes a vertical roller 96 and a horizontal roller 97 that are guided by the upper slide rail 92.
The vertical roller 96 corresponds to a second support, and the shaft center of the shaft portion 96A of the vertical roller 96 is horizontal, and the shaft center of the shaft portion 97A of the horizontal roller 97 is vertical.

The upper slide rail 92 as the first slide rail is provided on the roof side rail ceiling portion of the vehicle body 11 along the upper portion of the fully closed first door panel 90.
The upper slide rail 92 guides the first guide body 94 provided at the tip of the upper arm 95 of the first door panel 90, and restricts the vertical and horizontal movement of the first guide body 94.
The upper slide rail 92 includes a rail upper surface portion 92A, a rail lower surface portion 92B, a rail side surface portion 92C, and a rail outer edge portion 92D, and has a substantially U-shaped cross section.
The vertical roller 96 on the rail lower surface portion 92B rolls according to the sliding movement of the first door panel 90.
The rail side surface portion 92C and the rail outer edge portion 92D regulate the movement of the horizontal roller 97 in the left-right direction of the vehicle.

The longitudinal direction of the upper slide rail 92 coincides with the longitudinal direction of the vehicle, the front end of the upper slide rail 92 is located near the pillar 19, and the rear end of the upper slide rail 92 is near the front edge of the second door panel 91. Has reached.
In a certain range near the front end of the upper slide rail 92, a curved rail portion 93 in which the upper slide rail 92 is curved is formed.
A second door side slide rail 98 is fixed to the second door panel 91 behind the rear end of the upper slide rail 92.
The second door-side slide rail 98 guides the first guide body 94 separated from the rear slide of the upper slide rail 92, and moves the first guide body 94 in the vertical direction and the left-right direction of the vehicle with respect to the second door panel 91. regulate.

In this embodiment, a slide restricting mechanism 99 that restricts the sliding movement of the first guide 94 in the second door side slide rail 98 in the vehicle front-rear direction is provided.
The slide restricting mechanism 99 includes a lock plate portion 100 provided on the upper arm 95 and a lock pin 101 provided on the second door side slide rail 98.
When the first door panel 90 is slid until the first door panel 90 is fully closed, the lock plate portion 100 is held by the lock pin 101, and the sliding movement of the first guide body 94 in the front-rear direction is restricted.
The slide restricting mechanism 99 is released by an outer handle 66 and an inner handle 67 that operate to open and close the first door panel 90.
The configurations of the second guide body 35, the intermediate slide rail 40, the third guide body 45, and the lower slide rail 55 are the same as those of the first embodiment, and the vertical roller 49 of the third guide body 45 is also the first support body. It corresponds to.

In this embodiment, when the first guide body 94 is guided by the upper slide rail 92, the vehicle body 11 and the second door panel 91 receive the load of the first door panel 90.
That is, the second door panel 91 receives a part of the load of the first door panel 90 via the vertical roller 38 of the second guide body 35, while the vehicle body 11 rolls on the support surface 57. The remaining load of the first door panel 90 is received through the vertical roller 49 and the vertical roller 96 of the first guide body 94.

After the first guide body 94 reaches the rear end of the upper slide rail 92 and the horizontal roller 97 protrudes from the upper slide rail 92 and moves into the second door slide rail 98, the vertical roller 96 on the second door panel 91 side is moved. It contacts the lower surface of the second door side slide rail 98.
On the other hand, after the horizontal roller 97 moves into the second door side slide rail 98, the horizontal roller 50 of the third guide body 45 protrudes from the lower slide rail 55. At this time, the vertical roller 49 is supported by the support surface 57. And the gap forming surface 58.

Further, when the sliding movement of the first door panel 90 is performed, the vertical roller 96 is completely out of the upper slide rail 92 and moved into the second door side slide rail 98, and the second door side slide rail 98 is The vertical roller 96 is supported while rolling as the one-door panel 90 slides.
When the vertical roller 96 is completely out of the upper slide rail 92, the horizontal roller 50 of the third guide body 45 is completely out of the lower slide rail 55.
In a state where the horizontal roller 50 of the third guide body 45 is completely out of the lower slide rail 55, the vertical roller 49 is positioned above the gap forming surface 58 and between the vertical roller 49 and the gap forming surface 58. A gap S is formed.

Further, when the first door panel 90 is slid and the first door panel 90 is fully closed, the lock plate portion 100 is held by the lock pin 101, and the first guide body 94 is slid by the slide restriction mechanism 99. Be regulated.
When the first guide body 94 is transferred to the second door side slide rail 98, the load on the first door panel 90 is received by the second door panel 90.
When the first guide body 94 is in a state of being regulated by the slide regulating mechanism 99, the second door panel 91 can be opened.

When the first door panel 90 is fully open, the second door panel 91 receives the load of the first door panel 90.
That is, the second door panel 91 receives a part of the load of the first door panel 90 via the vertical roller 38 of the second guide body 35, and also the vertical roller 96 of the first guide body 94 and the second door side slide rail 98. The remaining load of the first door panel 90 is received via

The present invention is not limited to the above-described embodiment, and various modifications can be made within the scope of the gist of the invention.
In the above first to third embodiments, the vehicle door structure that opens and closes the rear door opening formed on the side of the vehicle body is used. However, the vehicle door structure of the present invention is, for example, in the vehicle body rear portion. You may apply to the door structure which opens and closes the opening part which faces the provided back side. The application position in the vehicle body of the vehicle door structure of the present invention is not particularly limited.
In the above first to third embodiments, the first support is the vertical roller of the third guide, but the first support is not limited to the vertical roller of the third guide, The first guide body may be provided with a vertical roller, and the vertical roller may be used as the first support body, or the vehicle body may receive a part of the load of the first door panel irrespective of the first and third guide bodies. The first door panel may be provided. A plurality of first supports may be provided.
In the above first to third embodiments, the second support is any one of the upper arm, the lower arm, and the vertical roller of the first guide, but the second support is the upper arm, the lower arm, It is not limited to one of the vertical rollers of one guide body. The second support is provided on the first door panel, and the configuration is not particularly limited as long as the second door panel can receive a part of the load of the first door panel when the first door panel is fully opened.
In the first and second embodiments, the support mechanism includes the support roller. For example, instead of the support roller of the support mechanism, a resin capable of reducing the frictional force with the second support body You may use members, such as. The support mechanism is preferably configured to realize smooth support of the second support when the second support is supported when the first door panel slides.
In the above first to third embodiments, the first slide rail is the upper slide rail, but the lower slide rail may be the first slide rail. Further, although three slide rails are provided, for example, there may be two slide rails such as an upper slide rail and an intermediate slide rail or an intermediate slide rail and a lower slide rail.
In the first to third embodiments described above, the first door panel slides with three guide rails guided by the three slide rails of the upper slide rail, the intermediate slide rail, and the lower slide rail, and each slide rail. However, you may comprise only the 1st slide rail provided in the vehicle body side, and the 2nd slide rail provided in the 2nd door panel side. In that case, for example, the first slide rail is extended to the upper part of the second door panel, and the first guide body is provided at the front edge and the rear edge of the first door panel, respectively, and the two first guide bodies and one piece. Three or more guide bodies are provided on the first slide rail and the second slide rail, such as supporting the slide of the first door panel with the second guide body, and the first door panel is supported by these guide bodies. It is desirable to stabilize the slide. In this case, the first slide rail is configured such that the plurality of first guide bodies are detached from the first slide rail when the first door panel is fully opened. The second slide rail is preferably provided on the opposite side of the second door panel from the side on which the first slide rail is provided.
○ In the above first to third embodiments, the vehicle type to which the vehicle door structure is applied is not specifically specified. For example, as a passenger car having a three-row seat or a freight vehicle having a luggage carrier Also good. In the case of a passenger car, passengers can get on and off without moving the last row of seats by fully opening the first and second door panels. In the case of a freight vehicle, even for a large load that has conventionally required loading and unloading of luggage by opening and closing the back door, the first and second door panels are fully opened without opening and closing the back door. It is possible to load and unload luggage.
In the first and second embodiments described above, the rear ends of the upper slide rail and the lower slide rail are opened, and when the first door panel is fully opened, the first guide body is detached from the upper slide rail, and the third guide body However, the present invention is not limited to the case where the first guide body and the third guide body are detached from the corresponding slide rails when the first door panel is fully opened. For example, the side surface portion 23C is not provided at the rear end of the upper slide rail 23 in FIG. 4, and the side surface portion 55C of the lower slide rail 55 in FIG. 9 is not provided, and when the first door panel is fully opened, The three guide bodies may be in a state in which they can be detached from the corresponding slide rails.

11 Body 13 Rear door opening 13A First door opening area 13B Second door opening area 21, 90 First door panel 22, 91 Second door panel 23 Upper slide rail (first slide rail)
26, 94 First guide bodies 27, 95 Upper arm (second support body, first arm)
27C Inclined rear edge (bearing surface)
29, 48 Latch 35 Second guide body 36 Intermediate arm (second arm)
40 Intermediate slide rail (second slide rail)
45 3rd guide body 46 Lower arm (as 3rd arm)
49 Vertical roller (first support)
55 Lower slide rail (third slide rail)
57 Support surface 58 Gap forming surface 60 Hinge mechanism 63 Second door opening / closing restriction mechanism 65 First door opening / closing restriction mechanism 70, 72, 99 Slide restriction mechanism 71, 73 Door lock striker 75, 81 Support mechanism 76, 82 Support roller 78 Buffer Member 78A Inclined surface (receiving surface)
96 Vertical roller (second support)
98 Second door side slide rail G Center of gravity S of the first door panel Clearance

Claims (6)

A first door panel that opens and closes a part of a door opening formed in the vehicle body;
A second door panel that opens and closes the entire door opening together with the first door panel;
A slide mechanism for opening and closing the first door panel by sliding movement;
A hinge mechanism for supporting the second door panel, which is overlapped with the first door panel in a fully open state, by rotating the shaft;
The slide mechanism is
A first slide rail provided on the vehicle body along the upper or lower portion of the first door panel in a fully closed state;
A first guide body provided on the first door panel, guided by the first slide rail, and in a detachable state or a detachable state from the first slide rail when the first door panel is fully opened;
A second slide rail provided on the second door panel;
A second guide body provided on the first door panel and supported and guided by the second slide rail;
The first door panel is
A first support body supported by the vehicle body in a fully closed state of the first door panel;
A second support that is supported by the second door panel when the first guide body is detached from the first slide rail or in a state in which the first guide body can be detached.
The second door panel includes a support mechanism for supporting the second support body, and the first door panel is moved while the first door panel is shifted from the fully closed state to the fully opened state, or while being shifted from the fully opened state to the fully closed state. The vehicle door structure is characterized in that the support is switched between support by the first support and support by the second support. The vehicle body is
A support surface for supporting the first support;
A gap forming surface that forms a gap between the first support and the vehicle body when the first guide body is detached from the first slide rail or in a state in which the first guide body can be detached. The vehicle door structure according to claim 1. The first slide rail is provided on the vehicle body along the upper portion of the first door panel in a fully closed state,
A third slide rail provided below the second slide rail;
A third guide body provided on the first door panel, guided by the third slide rail, and in a detachable state or a detachable state from the third slide rail when the first door panel is fully opened,
The first support is a vertical roller provided in the first door panel,
3. The vehicle door structure according to claim 1, wherein the second support body is a first arm that includes the first guide body and is fixed to the first door panel. The first slide rail is provided on the vehicle body along the upper portion of the first door panel in a fully closed state,
A third slide rail provided below the second slide rail;
A third guide body provided on the first door panel, guided by the third slide rail, and in a detachable state or a detachable state from the third slide rail when the first door panel is fully opened,
The first support is a vertical roller provided in the first door panel,
The vehicle door structure according to claim 1 or 2, wherein the second support body is a third arm that includes the third guide body and is fixed to the first door panel.   The vehicle door structure according to claim 1, wherein the support mechanism includes a support roller that receives the second support. The vehicle body includes a buffer member that absorbs an impact caused by a collision with the first door panel during sliding movement to the fully open side,
The first guide body has a contact surface that can come into contact with the buffer member;
The buffer member has a receiving surface that comes into contact with the contact surface,
The receiving surface is inclined from the front to the rear,
The vehicle door structure according to any one of claims 1 to 3, wherein the contact surface is inclined so as to come into surface contact with the receiving surface.

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