JP5217365B2 - Sliding door structure for vehicles - Google Patents

Description

  The present invention relates to a sliding door structure in a one-box type automobile.

  An upper rail is provided at the top of the door opening, a lower rail is provided at the bottom, a slide rail is provided on the side of the vehicle body behind the door opening in the middle of the door opening, and guide rollers that roll on these rails are provided on the door body. A sliding door structure attached to the side is known.

  By the way, in a one-box type automobile, a step portion is generally provided at a lower portion on the vehicle interior side of the door opening of the slide door.

  However, when the lower rail is provided in the step portion, when the lower rail becomes dirty, the dirty lower rail is easily seen when the passenger gets on and off, and the appearance becomes very bad.

In view of this, a slide door structure has been proposed in which a lower rail is provided on the lower side of the step portion so that an occupant cannot see the lower rail (see, for example, Patent Document 1).
Japanese Utility Model Publication No. 6-36993

  However, in the sliding door structure disclosed in Patent Document 1, since the lower rail is provided below the step portion, there is a problem that the height of the step portion is increased correspondingly, and the boarding / exiting performance is deteriorated.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a slide door structure that does not require an upper rail and a lower rail, and that is improved in getting on and off the step portion inside the slide door in an automobile having a step portion.

In order to solve the above problems, the present invention is provided in a door opening formed in a vehicle body, a door main body that is opened and closed with respect to the door opening, and a vehicle interior side below the door opening. Step part, a vehicle body side hinge piece fixed to the side surface of the step part, a door side hinge piece fixed to the lower part of the door body, and one end part of the vehicle body side hinge piece via the vehicle body side hinge pin. A hinge mechanism having a connecting hinge piece that is movably attached and the other end of which is pivotally attached to the door side hinge piece via a door side hinge pin; and an intermediate position in the vertical direction of the door opening; A slide rail provided on the side of the vehicle body behind the door opening, and a slide arm provided on the door body and having a guide roller attached to the end thereof and capable of rolling in the slide rail. When the door is opened and closed, the connecting hinge piece rotates about the vehicle body side hinge pin, the door side hinge piece rotates about the door side hinge pin, and the guide roller of the slide arm rotates in the slide rail. While the slide arm rotates around the guide roller while moving, the door body slides in the longitudinal direction of the vehicle body while tilting with respect to the side surface of the vehicle body in plan view, while the door opening portion When the door body is closed, the door side hinge piece is positioned in front of the connecting hinge piece, and the door side hinge piece and the connecting hinge piece are arranged on a straight line .

  According to the above configuration, the upper rail and the lower rail are not required, and the structure is extremely simple. In addition, since the lower rail is unnecessary, the height of the step portion can be reduced, and the boarding / exiting property to the step portion can be improved.

  ADVANTAGE OF THE INVENTION According to this invention, in the motor vehicle which has a step part, the boarding / alighting property to the step part inside a slide door can be improved.

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

  1 and 2 show an example of a vehicle body to which the slide door structure according to the present invention is applied. FIG. 1 shows a state when the rear slide door is opened, and FIG. 2 shows a state when the rear slide door is closed. Respectively. Note that the rear slide door is omitted in FIGS. 1 and 2.

  A door opening 11 is formed on the rear side surface of the vehicle body 10, and the rear slide door is opened and closed with respect to the door opening 11. A step portion 12 is formed below the door opening portion 11, and a hinge mechanism 13 is installed in the step portion 12.

  Further, a slide rail 14 is provided at an intermediate position in the vertical direction of the door opening 11 and on the side of the vehicle body behind the door opening 11. In the present embodiment, no upper rail is provided above the door opening 11, and no lower rail is provided below the door opening 11 (that is, the step portion 12).

  The hinge mechanism 13 includes a vehicle body side hinge piece 15, a door side hinge piece 16, and a connecting hinge piece 17 that connects the vehicle body side hinge piece 15 and the door side hinge piece 16. The vehicle body side hinge piece 15, the door side hinge piece 16, and the connecting hinge piece 17 have a long belt shape in the lateral direction. Of these hinge pieces, the vehicle body side hinge piece 15 is attached to the rear side wall 12 </ b> A of the step portion 12.

  Here, the detailed structure of the hinge mechanism 13 is demonstrated using FIG. The vehicle body side hinge piece 15 is formed with a convex portion 15A at a substantially central portion in the vehicle width direction. One end portion of the connecting hinge 17 is connected to the convex portion 15A by a vehicle body side hinge pin 18, and the connecting hinge piece 17 is The vehicle body side hinge pin 18 is rotatable as indicated by an arrow A. Further, the other side end portion of the connecting hinge piece 17 is connected to the rear end portion of the door side hinge piece 16 by a door side hinge pin 19, and the connecting hinge piece 17 is rotatable around the door side hinge pin 19 as indicated by an arrow B. It has become. A stopper 20 is provided at the rear end of the door-side hinge piece 16. Details of the stopper 20 will be described later.

  FIG. 4 is a perspective view of the main part when the rear slide door 21 as the door body is viewed from the inside. As shown in FIG. 4, the door-side hinge piece 16 is fixed to the lower part of the front inner wall surface of the rear slide door 21. Further, an L-shaped slide arm 22 is provided on the rear inner wall surface of the rear slide door 21 in plan view, and guide rollers 23 and 24 are rotatably attached to the tip of the slide arm 22 in the vertical direction. . Although not shown in the figure, the slide arm 22 is provided at the middle portion of the rear slide door 21 in the vertical direction.

  On the other hand, as shown in FIG. 5, the slide rail 14 has a shape in which both side end portions 14A and 14B of the channel material are folded inward, and a gap 14C between the both side end portions 14A and 14B is interposed. The tip of the slide arm 22 is inserted into the slide rail 14. The slide arm 22 inserted into the slide rail 14 has a guide roller 23 at the tip at the bottom 14D and one side end 14A of the channel material, and a guide roller 24 at the bottom 14D and the other side end 14B of the channel material. When they contact each other and open and close the rear slide door 21, the guide rollers 23 and 24 move while rolling in the slide rail 14.

  Next, the effect | action of a present Example is demonstrated using FIG.

  6A shows a state in which the rear slide door 21 is completely closed (fully closed state), FIG. 6B shows a state in which the rear slide door 21 is completely opened, and FIG. 6C shows a state in which the rear slide door 21 is fully opened (fully opened state). ) Respectively. FIG. 6 schematically shows the relationship between the door-side hinge piece 16 and the connecting hinge piece 17 and the rear slide door 21, and the actual assembly of the hinge mechanism 13 shown in FIGS. There are places that do not match the structure. In FIG. 6, the vehicle body side hinge piece 15 is omitted.

  In the fully closed state of (a), the door side hinge piece 16 and the connecting hinge piece 17 are aligned on a straight line and parallel to the rear slide door 21. The slide arm 22 is fixed to the rear slide door 21. In the fully closed state, the rear slide door 21 is positioned at the foremost part within the allowable movement range, so that the guide rollers 23 and 24 at the tip of the slide arm 22 are also at the foremost part. positioned.

  When the rear slide door 21 is slightly opened (b), the connecting hinge piece 17 rotates counterclockwise about the vehicle body side hinge pin 18 (see FIG. 3). At this time, since the door-side hinge piece 16 fixed to the front inner wall surface of the rear slide door 21 cannot be rotated, the connecting hinge piece 17 rotates relative to the clockwise direction around the door-side hinge pin 19 (see FIG. 3). Will move. As a result, the door-side hinge piece 16 and the connecting hinge piece 17 are bent in a “<” shape around the door-side hinge pin 19. At this time, the slide arm 22 slightly rotates counterclockwise around the guide rollers 23 and 24, and the guide rollers 23 and 24 move while rolling backward in the slide rail 14.

  In the fully opened state of (c), the connecting hinge piece 17 further rotates counterclockwise about the vehicle body side hinge pin 18 and the side surface of the connecting hinge piece 17 contacts the vehicle body side hinge piece 15 (see FIG. 3). . At this time, the guide rollers 23 and 24 move further backward in the slide rail 14.

  As can be seen from FIG. 6, the rear slide door 21 slides in the longitudinal direction of the vehicle body while tilting with respect to the side surface of the vehicle body in a plan view when opening and closing (in the case of (b) and (c) above).

  FIG. 7 shows a state near the step portion 12 when the rear slide door 21 is fully closed. As shown in FIG. 7, the plate thickness of the door side hinge piece 16 is thicker than the plate thickness of the connecting hinge piece 17, and in the vicinity of the door side hinge pin 19, the connecting hinge piece 17 is disposed at the rear end portion of the door side hinge piece 16. A stopper 20 that protrudes from the side surface is formed. When the rear slide door 21 is fully closed, the stopper 20 aligns the door-side hinge piece 16 and the connecting hinge piece 17 of the hinge mechanism 13 in a straight line.

  Here, FIG. 8 shows the door-side hinge piece 16 and the connection hinge piece 17 and the vicinity of the connection point. FIG. 8A shows the state immediately before the rear slide door 21 is fully closed, and FIG. 8B shows the rear slide door. 21 shows the state of 21 when fully closed. As shown in FIGS. 8A and 8B, when the stopper 20 is formed at the rear end portion of the door-side hinge piece 16, when the rear slide door 21 is fully closed, the connecting hinge piece 17 is stopped. In this case, the rotation of the connecting hinge piece 17 is restricted, and the door side hinge piece 16 and the connecting hinge piece 17 can be aligned on a straight line. That is, in FIG. 7, the door-side hinge piece 16 and the connecting hinge piece 17 are prevented from bending in a “<” shape toward the vehicle interior side around the door-side hinge pin 19 that is the connecting point. Yes.

  In FIG. 7, 25 and 26 are cross members, 27 is a rear side member, and 28 is a center pillar.

  According to the present embodiment, the rear slide door 21 is configured such that the lower portion thereof is supported by the hinge mechanism 13 and the middle portion in the vertical direction is supported by the slide arm 22 and the slide rail 14, so that no upper rail or lower rail is required. At the same time, the structure becomes extremely simple. Moreover, since a lower rail is unnecessary, the height of a step part can be made low and the passenger | crew's boarding / alighting property to a step part can be improved.

  Further, according to the present embodiment, the vehicle body side hinge piece 15 of the hinge mechanism 13 is arranged in the vehicle width direction, so that an impact force (arrow C) is applied to the side surface of the vehicle at the time of a side collision as shown in FIG. Then, the impact force can be transmitted to the cross members 25, 26 (see FIG. 7) through the vehicle body side hinge piece 15, and the deformation of the rear slide door 21 can be minimized. In FIG. 9, 29 is a floor panel and 30 is a side sill.

  Furthermore, according to the present embodiment, when the rear slide door 21 is fully closed, the door-side hinge piece 16 and the connecting hinge piece 17 of the hinge mechanism 13 are aligned in a straight line. Therefore, as shown in FIG. Sometimes, when impact force (arrow D) or impact force (arrow E) is applied at the time of rear impact, the impact force can be received by the door-side hinge piece 16 and the connecting hinge piece 17 to minimize deformation of the entire vehicle body. Can be suppressed.

  In this embodiment, the stopper 20 is provided on the door-side hinge piece 16. However, the stopper 20 may be provided on the connecting hinge piece 17.

  FIG. 11 shows a modification of the hinge mechanism 13 in the present embodiment. This modification is characterized by the door-side hinge piece 16 '. The door-side hinge piece 16 ′ is formed with a convex portion 16′A at a substantially central portion in the vehicle front-rear direction, and one end portion of the connecting hinge 17 is connected to the convex portion 16′A by a door-side hinge pin 19. . The connecting hinge piece 17 is rotatable around the door side hinge pin 19 as indicated by an arrow B. The vehicle body side hinge piece 15 and the connection hinge piece 17 are connected to each other by a vehicle body side hinge pin 18 as in the hinge mechanism 13 shown in FIG. It is freely rotatable.

  According to the above modification, the connecting hinge piece 17 is connected to the vehicle front-rear direction substantially central portion of the door-side hinge piece 16 ′, so that the rear slide door 21 is largely moved rearward when the rear slide door 21 is fully opened. And the door opening 11 is widened accordingly.

  If the convex portion 16′A is provided at the forefront portion of the door-side hinge piece 16 ′, the rear slide door 21 can be moved further rearward, and the door opening 11 can be further widened. can do.

  FIGS. 12 and 13 show the second embodiment. FIG. 12 is a view of the vicinity of the step portion 12 when the rear slide door 21 is opened as viewed from the front. FIG. 13 shows the step portion 12 from above. FIG.

  In this embodiment, a movable arm 31 is provided below the hinge mechanism 13. The movable arm 31 includes a first arm 31A and a second arm 31B. One side of the arms 31A and 31B is connected to each other by a pin 32 and is attached to the rear portion of the door side hinge piece 16 by the pin 32. ing. A pin 33 is fixed to the other side of the first arm 31A, and a guide roller 35 that rolls in the guide rail 34 is attached to the lower end of the pin 33. The guide rail 34 is formed on the bottom upper surface of the step portion 12 along the vehicle front-rear direction. The other side of the second arm 31 </ b> B is rotatably attached to the upper surface of the bottom of the step portion 12 with a pin 36. The arms 31A and 31B can be bent at the pin 32.

  In this embodiment, as shown by a two-dot chain line in FIG. 13, when the rear slide door 21 is closed, the guide roller 35 is guided by the guide rail 34 and moves from the rear side of the vehicle body to the front side of the vehicle body. The arms 31A and 31B move on the step unit 12. At this time, if the occupant's foot is on the step portion 12, the arm 31A particularly hits the occupant's foot to alert the occupant.

  According to the present embodiment, by urging the above-mentioned attention, the occupant notices that his / her foot is on the step portion 12, and removes the foot from the step portion 12, so that the foot is the door side hinge piece 16. Further, it is possible to prevent the pinch between the connecting hinge piece 17 and the side wall surface of the step portion 12 in advance.

  The movable arm 31 may be provided above the hinge mechanism 13 instead of below the hinge mechanism 13.

  14 to 16 show the third embodiment. FIG. 14 is a view of the vicinity of the step portion 12 as viewed from above. FIG. 15 is a cross-sectional view taken along the line SA-SA in FIG. It is sectional drawing seen along guide groove 41A, 42A, 43A.

  In the present embodiment, three step plates 41, 42, and 43 are stacked on the step portion 12 in this order. Among these, the step plate 43 is fixed to the side wall 12 </ b> B constituting the step portion 12. Further, two curved guide grooves 41A, 42A, and 43A are formed on the bottom surfaces of the step plates 41, 42, and 43, respectively.

  A door-side hinge piece 16 ′ is attached to the front lower inner wall of the rear slide door 21. The door-side hinge piece 16 ′ is formed with an upper protrusion 16′A and a lower protrusion 16′B that protrude inward in the vehicle width direction at the upper and lower portions, respectively. The vertical cross section of this is U-shaped. A protrusion 41B that engages with the guide groove 41A of the step plate 41 is provided on the inner side in the vehicle width direction on the upper surface of the lower protruding portion 16'B.

  Further, a protrusion 42B engaged with the guide groove 42A of the step plate 42 is provided on the inner side in the vehicle width direction on the upper surface of the step plate 41, and a step plate is provided on the inner side in the vehicle width direction on the upper surface of the step plate 42. A protrusion 43B engaged with the 43 guide groove 43A is provided.

  Further, the door-side hinge piece 16 ′ is connected to the connecting hinge piece 17 via the pin 19 as in the first embodiment, and the connecting hinge piece 17 is connected to the vehicle body-side hinge piece 15 via the pin 18 (see FIG. 3). ). In FIG. 16, reference numeral 44 denotes a top plate provided in the upper part of step 12.

  In the above configuration, when the rear slide door 21 is opened, the connecting hinge piece 17 rotates as indicated by an arrow F, and at the same time, each of the step plates 41, 42, 43 is interlocked with the opening operation of the rear slide door 21, In the connected state, it is sequentially fed out toward the outside in the vehicle width direction.

  That is, when the rear slide door 21 is opened, as shown in FIG. 16, the door-side hinge piece 16 ′ moves outward in the vehicle width direction (right side in the figure), and accordingly, the protrusion 41B is displaced outward in the vehicle width direction. To do. When the protrusion 41B is displaced outward in the vehicle width direction, the protrusion 41B hits the right end of the guide groove 41A, and when the protrusion 41B is further displaced outward in the vehicle width direction, the step plate 41 is pulled and moves outward in the vehicle width direction. When the step plate 41 moves outward in the vehicle width direction, the projection 42B is displaced outward in the vehicle width direction. When the protrusion 42B is displaced outward in the vehicle width direction, the protrusion 42B hits the right end of the guide groove 42A, and when the protrusion 42B is further displaced outward in the vehicle width direction, the step plate 42 is pulled and moved outward in the vehicle width direction. Then, the step plate 42 moves until the protrusion 43B hits the right end of the guide groove 43A.

  According to the present embodiment, when the rear slide door 21 is opened, the step plates 41, 42, 43 are sequentially connected toward the outside in the vehicle width direction in conjunction with the opening operation. The occupant can get on and off with the feet on the step plates 41, 42 and 43, and the occupant's ability to get on and off is improved.

  Although the embodiments of the present invention have been described in detail with reference to the drawings, each of the above embodiments is only an example of the present invention, and the present invention is not limited only to the configuration of each of the above embodiments. . Needless to say, changes in design and the like within the scope of the present invention are included in the present invention.

It is a figure which shows the vehicle body to which the slide door structure by Example 1 is applied, and shows a mode when a rear slide door is opened. It is a figure which shows a mode when the rear slide door is closed in the slide door structure of FIG. It is a perspective view of a hinge mechanism. It is a figure which shows the door side hinge piece, slide arm, etc. which were attached to the rear slide door. It is a perspective view of the slide rail attached to the vehicle body side surface. It is a figure explaining the operation | movement of a hinge mechanism and a slide arm at the time of opening and closing of a rear slide door. It is a figure which shows the mode of the step part vicinity when a rear slide door is fully closed. The vicinity of the connecting portion between the door-side hinge piece and the connecting hinge piece is shown, (a) is a view showing a state immediately before the rear slide door is fully closed, and (b) is a view showing the state where the rear slide door is fully closed. FIG. It is a figure which shows the mode of the vicinity of a step part when impact force is added at the time of a side collision. It is a figure which shows the mode of the vicinity of a step part when an impact force is added at the time of front collision or rear collision. It is a figure which shows the modification of a hinge mechanism. FIG. 9 is a cross-sectional view of the second embodiment when the vicinity of a step portion when the rear slide door is opened is viewed from the front. In FIG. 12, it is the figure which looked at the step part from upper direction. FIG. 10 is a diagram illustrating Embodiment 3 and the vicinity of a step portion viewed from above. It is sectional drawing along the SA-SA line of FIG. In FIG. 14, it is sectional drawing seen along the guide groove.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Car body 11 Door opening part 12 Step part 13 Hinge mechanism 14 Slide rail 15 Car body side hinge piece 16 Door side hinge piece 17 Connection hinge piece 18 Car body side hinge pin 19 Door side hinge pin 20 Stopper 21 Rear slide door 22 Slide arm 23, 24 Guide Roller 31 Movable arm 41, 42, 43 Step plate

Claims (5)

A door opening formed in the vehicle body;
A door body that is opened and closed with respect to the door opening;
A step portion provided on the vehicle interior side below the door opening,
A vehicle body side hinge piece fixed to the side surface of the step portion, a door side hinge piece fixed to the lower portion of the door body, and one end portion are rotatably attached to the vehicle body side hinge piece via a vehicle body side hinge pin. A hinge mechanism having a connecting hinge piece pivotally attached to the door hinge piece through the door hinge pin at the other end;
A slide rail provided at an intermediate position in the vertical direction of the door opening and on the side of the vehicle body behind the door opening;
A slide arm provided on the door body and having a guide roller attached to an end of the slide rail and capable of rolling in the slide rail;
When the door is opened and closed, the connecting hinge piece rotates about the vehicle body side hinge pin, the door side hinge piece rotates about the door side hinge pin, and the guide roller of the slide arm rotates in the slide rail. While the slide arm rotates around the guide roller while moving, the door body slides in the longitudinal direction of the vehicle body while tilting with respect to the side surface of the vehicle body in plan view ,
When the door body is closed with respect to the door opening, the door-side hinge piece is positioned in front of the connecting hinge piece, and the door-side hinge piece and the connecting hinge piece are arranged on a straight line. A sliding door structure for a vehicle.   2. The vehicle sliding door structure according to claim 1, wherein the vehicle body side hinge piece is fixed to a side surface of the step portion along a vehicle width direction. When the door main body is closed with respect to the door opening, a stopper for restricting a rotation range of the connecting hinge piece is arranged so that the door side hinge piece and the connecting hinge piece are arranged in a straight line. The vehicle sliding door structure according to claim 1, wherein the sliding door structure is provided on a side hinge piece or the connecting hinge piece . In conjunction with the closing operation of the door body, when there is an occupant's foot in the step portion, a movable arm that hits the foot and alerts the occupant is provided below or above the connecting hinge piece. The vehicle sliding door structure according to any one of claims 1 to 3 . Several step plates are installed on the step portion, and the several step plates are sequentially fed out in the vehicle width direction in a connected state in conjunction with the opening operation of the door body. The sliding door structure for vehicles as described in any one of Claims 1-4 characterized by the above-mentioned.

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