JP6004163B2 - Sliding door structure - Google Patents

Description

  In a vehicle equipped with a sliding door, when an excessive load is applied from the vehicle interior side to the outdoor side, such as when a load or an occupant loaded in the vehicle interior hits the slide door, The present invention relates to a slide door structure that reduces a gap between a slide door and a side body caused by twisting or the like.

  Conventionally, as a side door installed on the side of a vehicle body, a slide door in which a door body is slid in a longitudinal direction of the vehicle body to open and close the door opening is generally well known. It is often used as a side door for automobiles.

  In a vehicle equipped with such a slide door, a plurality of guide rails extending in the longitudinal direction of the vehicle body are provided on the side of the vehicle body, and a roller that can roll along the guide rail is provided on the door body side of the slide door. When the door is opened and closed, the roller rolls along the guide rail, so that the slide door slides in the longitudinal direction of the vehicle body.

The guide rail is provided with an upper guide rail along the vehicle longitudinal direction at the upper side of the door opening, and with a lower guide rail along the vehicle longitudinal direction at the lower side of the door opening. . Further, an intermediate guide rail is provided along the longitudinal direction of the vehicle body at an intermediate position in the vertical direction on the rear side of the door opening.
On the other hand, on the back surface of the sliding door, an upper guide roller that rolls along the upper guide rail is provided at an upper position of the door front end, and along the lower guide rail at a lower position of the door front end. A rolling lower guide roller is provided. An intermediate guide roller that rolls along the intermediate guide rail is provided at an intermediate position above and below the rear end of the door.
The slide door rolls along the upper guide rail and the lower guide rail by the upper guide roller and the lower guide roller, and rolls and slides along the middle guide rail by the middle guide roller. .

By the way, in the vehicle provided with the slide door as described above, the slide door is supported at three points of the vertical position of the door front end portion and the intermediate position of the door rear end portion, and the slide door is closed. Is locked by engaging a striker or the like on the vehicle body side with hooks and latches provided at upper and lower intermediate positions of the front end portion and the rear end portion of the slide door, respectively. Thus, in a state where the slide door is closed, the front end portion of the slide door is held at three locations, upper, middle and lower, and the rear end portion of the slide door is held at an intermediate position in the vertical direction (Patent Document 1). reference).
In order to improve the rigidity of the mounting portion of the sliding door, a reinforcing member is attached to the mounting portion of the upper guide roller and the lower guide roller at the front end of the door and the mounting portion of the intermediate guide roller at the rear end of the door. Such prior art (see Patent Document 2) is known.

JP 2009-143294 A JP-A-2005-335412

  However, if an excessive load is applied from the interior of the vehicle to the exterior of the vehicle, such as when a load or a passenger loaded in the vehicle is in contact with the slide door, the slide door is pushed outward from the vehicle body. In some cases, deformation or twisting action may be applied. The sliding door is supported at three locations, upper, middle, and lower, at the front end portion, while being held only at the intermediate position at the rear end portion. For this reason, if excessive stress is applied to the sliding door from the vehicle interior side toward the outdoor side, a torsional action acts on the rear end portion with the fixed front end portion serving as a fulcrum, and the rear end portion is moved vertically relative to the front end portion. As a result, the gap between the vertical position of the sliding door and the wall surface of the side body widens, and in particular, the gap at the upper end on the rear side of the sliding door may increase.

  The present invention solves the above-mentioned problems, and in a vehicle equipped with a sliding door, a load is applied to the sliding door from the vehicle interior side to the outside in the vehicle width direction with the sliding door closed. Is pushed to the outside of the vehicle body, the upper side of the sliding door is set to the indoor side using the twisting action set on the door inner panel of the sliding door using the twisting action that acts on the upper end of the rear side of the sliding door. It aims at providing the structure of the slide door which reduces the clearance gap which arises in the upper end part and side body wall surface of a slide door by making it bend.

In order to solve the above-mentioned problems, the present invention provides upper and lower guide rails along the front-rear direction of the vehicle body on the upper and lower sides of the door opening provided on the side surface of the vehicle body. The intermediate guide rails are disposed in the vehicle longitudinal direction at intermediate positions in the vertical direction, and rollers that roll along the guide rails are provided on the upper and lower sides of the front end portion of the slide door and the intermediate portion of the rear end portion. A sliding door that opens and closes the door opening by sliding the door in the longitudinal direction of the vehicle body, and fixes the front and rear of the sliding door to a pillar portion provided at the front and rear of the door opening via a fixing mechanism. In the structure, a reinforcing member is provided between the door outer panel and the door inner panel constituting the sliding door along the bottom side of the window provided in the sliding door, and the reinforcing member is provided. Upwardly from the central position of the rear-side fixing mechanism of the sliding door at the lower side position of the bar, is provided a first fold inducing part extending in the longitudinal direction of the door inner panel, the front of the sash section root of the door inner panel In addition, a second fold induction part extending in the front-rear direction is provided .
Moreover, this invention exists in providing the hole part along the front-back direction of the said slide door in the said door inner panel ahead of the said 1st bending induction part.
Furthermore, the present invention resides in that a folding inducing portion extending in the front-rear direction is provided at the base of the sash portion at the front of the door inner panel.
Furthermore, the present invention provides a breakage-inducing weakening portion extending in the front-rear direction on the rear side of the door inner panel located below the center position of the fixing mechanism of the rear portion of the sliding door, and the rear portion of the door inner panel A fold-inducing fragile portion having substantially the same height as the fold-inducing fragile portion extending in the front-rear direction provided on the side is provided on the front side of the door inner panel.
Moreover, this invention exists in providing the linear bending induction weak part toward the 1st bending induction part extended in the said front-back direction from the sash part base of the rear part of the said door inner panel.
Furthermore, the present invention is located above the first position of the sliding door, and above the first folding induction portion extending in the front-rear direction of the sliding door, which is provided on the rear side of the door inner panel. A fold-inducing bead for dividing a ridge line portion located at the base of the sash portion at the rear of the door inner panel is provided.
Still further, the present invention provides the fixing mechanism for the rear portion of the sliding door at a door lower position that is a position that is below the intermediate portion of the rear end portion of the door with respect to the vertical direction , and the fixing mechanism is a sliding door. It is set to allow the deformation movement to the outside of the lower part.

According to the present invention, the following effects can be obtained.
According to the first invention, the door inner panel is provided with the first fold-inducing portion extending in the front-rear direction above the center position of the rear-side fixing mechanism of the slide door at the lower position of the reinforcing member. Bending the upper part of the sliding door horizontally toward the indoor side at the lower part of the window against the load applied from the indoor side to minimize the generation of a gap between the vertical position of the sliding door and the side body wall surface Can do. Further, since the second fold inducing portion extending in the front-rear direction is provided at the base of the sash portion at the front portion of the door inner panel, the folding of the slide door is controlled by providing the fold inducing portion in the originally weak sash portion. be able to.
According to the second invention, the hole along the front-rear direction of the slide door is provided in the door inner panel in front of the first fold inducing portion, so that the fold is widened to the door central portion and the front portion. And the entire door can be easily folded.
According to the third aspect of the present invention, the breakage-inducing weakening portion extending in the front-rear direction is provided on the rear side of the door inner panel located below the center position of the fixing mechanism of the rear portion of the sliding door, and the door inner panel Since there is a fold-inducing weakening portion on the front side of the door inner panel that is substantially the same height as the fold-inducing weakening portion that is provided on the rear side and extends in the front-rear direction, it is folded in two steps with the fold-inducing portion. Since the trigger part is formed, it is possible to trigger the break reliably.
According to the fourth aspect of the invention, since the linear breakage inducing weakened portion is provided from the base of the sash portion of the rear portion of the door inner panel toward the first breakage inducing portion extending in the front-rear direction, Can be induced more effectively.
According to the fifth invention, above the center position of the fixing mechanism of the rear part of the sliding door, above the first folding induction part provided on the rear side of the door inner panel and extending in the front-rear direction of the sliding door, Since the bend-inducing bead for dividing the ridge portion located at the base of the sash portion at the rear of the door inner panel is provided, the ridge line portion that is difficult to break can be divided to facilitate the fold.
According to the sixth invention, the fixing mechanism for the rear part of the sliding door is provided at a door lower position which is a position which is lower than the middle part of the rear end part of the door with respect to the vertical direction. Since the deformation movement to the outside of the lower portion of the door is set to be allowed, the gap on the upper side of the rear portion of the sliding door can be reduced.

It is a perspective view which removes a sliding door and shows the structure of the sliding door by embodiment of this invention. It is the rear view which looked at the sliding door of the sliding door vehicle of FIG. 1 from the vehicle body inner side. It is an enlarged view which expands and shows the sliding door of FIG. It is the conceptual diagram which looked at the sliding door of the sliding door vehicle at the time of a deformation | transformation from back. It is a conceptual diagram which shows the fixing metal fitting which fixes the rear part side of a slide door.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
The structure of the sliding door is shown in FIG. 1 and FIG. 2, and the folding induction part is shown in FIG.

  1 to 3, reference numeral 1 denotes a one-box car body. The side bodies 3 provided on the left and right side surfaces 2 of the vehicle body 1 are respectively formed with front and rear door openings 3a and 3b serving as entrances and exits, and a front pillar portion A and a quarter that partition the front side door opening 3a. A pillar part B and a rear pillar part C that partitions the rear side door opening 3b together with the quarter pillar part B are provided.

  A front-side opening 3a of the side body 3 is provided with a panel-type front door 4 that is rotatably supported on the front pillar portion A via a hinge mechanism (not shown) to the outside of the vehicle body. Yes. The rear opening 3b of the side body 3 is provided with a sliding slide door 5 that slides in the front-rear direction of the vehicle body 1 to open and close the door opening 3b. Slide rails 31a, 31b, and 31c are provided along the front-rear direction on the side surfaces of the side body 3 at the upper and lower side positions of the door opening 3b and the intermediate position in the vertical direction on the rear side of the door opening 3b. On the other hand, the slide door 5 is provided with an upper roller 51a, a lower roller 51b, and an intermediate roller 51c that engage with the slide rails 31a, 31b, and 31c, respectively. The upper roller 51a, the lower roller 51b, and the intermediate roller 51c are pivotally supported by the upper arm 52a, the lower arm 52b, and the intermediate arm 52c, respectively, and the upper arm 52a, the lower arm 52b, and the intermediate arm 52c are interposed therebetween. The slide door 5 is provided at the top and bottom of the front part of the rear surface and at the middle part of the rear part of the rear surface.

  On the vertical wall surface on the opening side of the rear pillar portion C, at the intermediate position in the vertical direction, the rear portion of the slide door 5 is closed, and when the slide door 5 is closed, A striker (not shown) as a fixing mechanism for fixing the slide door 5 by engaging with a door latch or hook (not shown) as a fixing mechanism provided at an intermediate position in the vertical direction is provided. A hook or door latch (not shown) as a fixing mechanism is provided at an intermediate position in the vertical direction of the front portion of the slide door 5, and a striker (not shown) as a fixing mechanism that engages with the hook or door latch. Is provided on the rear side of the quarter pillar portion B. In the closed position of the opening 3b, the sliding door 5 is held on the side body 3 by the upper roller 51a, the lower roller 51b, and a hook or door latch, and the intermediate portion of the rear end portion is held at the front end side. The intermediate body 51 is held by the side body 3 by a door latch or a hook. Reference numerals 5 </ b> A and 5 </ b> B denote a hook or door latch mounting position as a fixing mechanism provided on the slide door 5 and a door latch or hook mounting position as a fixing mechanism.

  As shown in FIGS. 1, 2, 3, and 4, the sliding door 5 is composed of a door outer panel 6 and a door inner panel 7, and a rectangular window portion 8 surrounded by a window frame 8A is formed on the upper side. A hook or a door latch is assembled to the lower front and rear end portions. A reinforcing member 9 is provided on the door inner panel 7 along the window 8 on the lower side of the window 8 of the slide door 5.

FIG. 3 shows an assumed folding line BL (shown by a two-dot chain line) set in the sliding door 5 according to the embodiment of the present invention, and a folding induction part BP (shown by a broken line) provided on the door inner panel 7. It is shown.)
The first folding assumption line BL1 is a door inner panel from the upper side of the attachment position 5A such as a hook as a fixing mechanism on the front side of the slide door 5 on the lower side of the window 8 provided with the reinforcing member 9. 7 through the upper side of the service hole 7a provided in the front-rear direction of the door inner panel 7 on the lower side of the window portion 8 and passing through the rear end side of the window portion 8 obliquely upward. 8 is set at the end of the rear window frame.
Next, the second assumed folding line BL2 passes from the lower side of the hook mounting position 5A on the front side of the sliding door 5 along the lower side of the service hole 7a of the door inner panel 7 and slides substantially horizontally. The sliding door 5 is set in the front-rear direction by passing through a lower side of a mounting position 5B of a latch as a fixing mechanism on the rear side of the door 5.

  The first fold inducing portion BP1 is provided with a latch as a rear side fixing mechanism of the slide door 5 at a lower position of the reinforcing member 9 provided on the slide door 5 so as to follow the first fold assumption line BL1. A fragile portion 7A extending in the front-rear direction is provided on the door inner panel 7 above the center position of the mounting position 5B, for example, approximately 75 mm above. This weak part 7A is comprised by the bead of fixed length, such as about 50 mm or more, for example. The service hole 7a is formed along the front-rear direction of the door inner panel 7 from the front end portion of the hook attachment position 5A of the door inner panel 7 to the front side of the first fold induction portion BP1.

The second fold inducing portion BP2 assists the first fold assumption line BL1, and is weak at the root portion of the front sash portion 7b of the door inner panel 7 so as to cross the front sash portion 7b in the front-rear direction. A portion 7B is provided.
This weak part 7B is comprised by the bead of the fixed length extended in the front-back direction, for example.

The third fold inducing portion BP3 extends in the front-rear direction toward the rear side of the door inner panel 7 located, for example, about 75 mm below the center position of the latch attachment position 5B as the sliding door 5 rear side fixing mechanism. The part 7C (breaking weakened part) is provided along the second fold assumption line BL2. This weak part 7C is comprised by the bead of fixed length, such as about 50 mm or more, for example.
The fourth fold inducing portion BP4 includes a fragile portion 7D (a fold inducing weak portion) having substantially the same height as the fold inducing weak portion 7C provided on the rear side of the door inner panel 7 and extending in the front-rear direction. It is provided on the front side of the inner panel 7 so as to be along the second assumed folding line BL2. The fourth fold inducing portion BP4 is, for example, about 50 mm on the front side of the door inner panel 7 positioned, for example, about 75 mm below the center position of the latch mounting position 5A as the sliding door 5 front side fixing mechanism. As described above, the fragile portion 7D is configured by a bead having a certain length.

  The fifth fold inducing portion BP5 is inclined toward the first fold inducing portion BP1 extending in the front-rear direction from the root of the sash portion 7c of the rear portion of the door inner panel 7 so as to follow the first fold assumption line BL1. A linear weak portion 7E is provided. The fragile portion 7E is configured by forming a step portion having an angle of, for example, about 50 mm or more obliquely.

  The sixth fold induction part BP6 is provided with a fragile part 7F at the ridge line part located at the base of the sash part 7c at the rear part of the door inner panel 7. The fragile portion 7F is provided with a bead for inducing bending so as to divide the ridge line portion located at the base of the sash portion 7c. It is provided above the first fold induction part BP1 provided on the rear side of the panel 7.

  According to the above-described embodiment, the slide door 5 is supported at the upper end, the middle, and the lower three locations at the front end portion, whereas the rear end portion is held by support only at the intermediate position. For this reason, if excessive stress is applied to the sliding door from the vehicle interior side toward the outdoor side, a torsional action is exerted on the rear end portion with the fixed front end portion as a fulcrum, and the rear end portion is vertically moved relative to the front end portion. Work to increase the deformation of At this time, the upper side of the slide door 5 is folded to the vehicle interior side by the first fold induction part BP1, and the slide door 5 is moved to the indoor side along the first fold assumption line BL1 as shown in FIG. Bend. In this way, the gap G between the rear upper end of the slide door 5 and the side body 3 is reduced. Reference numeral 5 ′ denotes a bending position of the slide door 5. Reference numerals 11A and 11B denote positions of test jigs to be pressed against the slide door 5 when performing a bending test. The second fold assumed line BL2 cooperates with the first fold assumed line BL1 to assist the bending of the slide door 5, so that the gap with the side body 3 is further reduced.

By setting the rear side fixing mechanism of the sliding door 5 to the lower side from the normal position and controlling the deformation movement of the lower side of the rear part of the door, the gap between the upper side of the sliding door 5 and the side body 3 is reduced. The structure will be described.
FIG. 5 shows a modified example in the case of a slide door vehicle in which a slide rail 31c, which is a rear side fixing mechanism for supporting the lower part of the slide door 5, is lowered to a lower side from a normal position and the lower side of the door rear part is fixed. It is.
In this case, the fixing rigidity of the front portion of the slide rail 31c is adjusted by the fixing bracket 12 arranged at the front portion of the slide rail 31c.
For this reason, the slide door 5 is deformed into a square shape with the center height due to the load applied from the indoor side, and the lower side of the rear portion of the slide door 5 by the slide rail 31c and the fixing bracket 12 Since the movement to the vehicle width direction side is added to the upper side of the slide door 5 on the contrary, the clearance between the upper side of the slide door 5 and the side body 3 is allowed. Can be made smaller than the lower part.
In addition, the above effect can be obtained even if the rear side fixing mechanism of the slide door 5 is separately provided on the lower side without lowering the slide rail 31c, and the fixing mechanism is allowed to deform to some extent in the vehicle width direction. be able to.

According to the above embodiment, the following effects can be obtained.
Since the first fold-inducing portion BP1 extending in the front-rear direction is provided on the door inner panel 7 above the center position of the rear side fixing mechanism of the slide door 5 at the lower side position of the reinforcing member 9, the load applied from the indoor side In contrast, by bending the upper part of the sliding door 5 horizontally on the lower side of the window part 8 toward the indoor side, the generation of a gap G between the vertical position of the sliding door 5 and the wall surface of the side body 3 is minimized. Can be suppressed. The sliding door 5 bends the door inner panel 7 along the first fold-inducing portion BP1, so that the upper side of the sliding door 5 bends, and the gap between the rear upper end of the sliding door 5 and the side body 3 is reduced. be able to.
Moreover, since the service hole 7a along the front-rear direction of the sliding door 5 is provided in the door inner panel 7 in front of the folding induction part BP1, the folding of the sliding door 5 can be expanded to the door center part and the front part. The entire sliding door 5 can be easily folded.
Furthermore, since the folding induction part BP2 extending in the front-rear direction is provided at the base of the front sash part 7b of the door inner panel 7, the folding door 5 can be bent by providing the folding induction part BP2 in the originally weak sash part 7b. Can be controlled effectively.
Furthermore, a fold-inducing weakening portion BP3 extending in the front-rear direction is provided on the rear side of the door inner panel 7 positioned below the center position of the fixing mechanism at the rear portion of the slide door 5, and the rear side of the door inner panel 7 is provided. The fold-inducing fragile portion BP4, which is substantially the same height as the fold-inducing fragile portion BP3 provided in the front-rear direction, is provided on the front side of the door inner panel 7. Since the fold-inducing portion is formed, it is possible to induce the fold surely.
Further, since the linear breakage-inducing weakening part BP5 is provided from the root of the sash part 7c at the rear part of the door inner panel 7 toward the bending induction part BP1 extending in the front-rear direction, the folding of the rear part of the slide door 5 is more effective. Can be triggered.
Furthermore, above the center position of the fixing mechanism at the rear part of the slide door 5 and above the folding induction part BP1 provided on the rear part side of the door inner panel 7 and extending in the front-rear direction of the slide door 5, the door inner panel 7 is provided. Since the bead for inducing bend 7F that divides the ridge portion that is the bulging portion of the sash portion located at the base of the rear sash portion 7c is provided, it is possible to divide the ridge line portion that is difficult to break and facilitate the fold.
Further, since the rear side fixing mechanism of the slide door 5 is lowered from the normal position to the lower side and the fixing mechanism is allowed to be deformed to some extent in the vehicle width direction, the upper side of the slide door 5 and the side body 3 This gap can be made smaller than the lower part.

  In addition, this invention is not limited only to the said embodiment, The length or the width | variety etc. of the folding induction parts BP1-BP6 can be set arbitrarily, and the folding induction parts BP1-BP6 are Any structure such as a bead, a step, or a hole can be adopted. In addition, various modifications and changes can be made based on the technical idea of the present invention.

DESCRIPTION OF SYMBOLS 1 Car body 2 Side surface 3 Side body 3a, 3b Door opening part 31a, 31b, 31c Slide rail 4 Front door 5 Slide door 51a Upper roller 51b Lower roller 51c Middle part roller 6 Door outer panel 7 Door inner panel 7A-7F Fragile part 8 Window Part 9 Reinforcement member A Front pillar part B Quarter pillar part C Rear pillar part BL1 1st folding assumption line BL2 2nd folding assumption line BP1 1st folding induction part BP2 2nd folding induction part BP3 3rd folding induction part BP4 4th fold inducing part BP5 5th fold inducing part BP6 6th fold inducing part

Claims (6)

Upper and lower guide rails are arranged along the longitudinal direction of the vehicle body on the upper side and the lower side of the door opening provided on the side surface of the vehicle body. By providing intermediate guide rails and rolling rollers along these guide rails at the top and bottom of the sliding door and at the middle of the trailing edge, and sliding the sliding door in the longitudinal direction of the vehicle body A door outer panel constituting the slide door in a structure of a slide door that opens and closes the door opening and fixes the front and rear portions of the slide door to a pillar portion provided before and after the door opening via a fixing mechanism. A reinforcing member is provided along the bottom of the window provided in the sliding door between the door inner panel and the sliding door, and the sliding door is positioned at a lower side of the reinforcing member. Above the central position of the rear-side fixing mechanism, it is provided a first fold inducing part extending in the longitudinal direction of the door inner panel,
A structure of a sliding door, wherein a second fold inducing portion extending in the front-rear direction is provided at the base of the sash portion at the front of the door inner panel . The structure of the slide door according to claim 1, wherein a hole along the front-rear direction of the slide door is provided in the door inner panel in front of the first fold induction portion.   Front and rear provided on the rear side of the door inner panel positioned below the center position of the sliding door rear fixing mechanism, and provided with a fragile weakening portion for inducing bending extending in the front-rear direction, and provided on the rear side of the door inner panel The structure of the sliding door according to claim 1 or 2, wherein a fold-inducing weakening portion having substantially the same height as the fold-inducing weakening portion extending in the direction is provided on the front side of the door inner panel. The linear breakage weakening part is provided toward the 1st breakage induction part extended in the said front-back direction from the sash part base of the rear part of the said door inner panel, The any one of Claim 1 thru | or 3 characterized by the above-mentioned. The structure of the sliding door as described in the item. Above the center position of the fixing mechanism of the rear part of the sliding door, above the first folding induction part provided on the rear side of the door inner panel and extending in the front-rear direction of the sliding door, on the rear part of the door inner panel. The structure of the sliding door according to any one of claims 1 to 4 , wherein a bead for inducing bending is provided to divide a ridge line portion located at the base of the sash portion. The fixing mechanism of the rear part of the sliding door is provided at a door lower position which is a position lower than the middle part of the rear end part of the door with respect to the vertical direction , and the fixing mechanism is deformed and moved to the outside of the lower part of the sliding door. The structure of the sliding door according to any one of claims 1 to 5 , wherein the structure is set so as to allow the above.

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