JP2013095241A - Slide door device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent an excessive gap from occurring between a door opening of a vehicle body sidewall and a door by effectively preventing the door from moving excessively outward of a vehicle body when some object in a cabin of a vehicle body collides with a slide door in a side collision.SOLUTION: A center rail 14 includes an inner plate 22 that extends along an outer face of a sidewall 9 in transverse sectional view; upper and lower plates 23, 24 that extend outward of a vehicle body 2 from upper and lower edges of the inner plate 22; and an outer plate 25 that extends to face the inner plate 22 from an extension edge of either one of the upper and lower plates 23, 24. The slide door device for vehicle further includes a reinforcing substrate 44 that extends in the vertical direction and joins front ends of the upper and lower plates 23, 24 to each other; a first reinforcing plate 45 that extends backward from the reinforcing substrate 44 to run along the outer surface of one plate; a second reinforcing plate 46 that extends from the first reinforcing plate 45 to run along the outer surface of the outer plate 25; and a third reinforcing plate 47 that extends from the second reinforcing plate 46 and is joined to the reinforcing substrate 44.

Description

  The present invention relates to a slide door device in a vehicle that includes a center rail that is attached to an outer surface of a side wall of a vehicle body and that guides the slide door in the front-rear direction and that reinforces the center rail.

  Conventionally, there is a slide door device in the vehicle described in Patent Document 1 below. According to this publication, the slide door device includes a slide door that closes a door opening formed on the side wall of the vehicle body so as to be opened and closed, a center rail that extends in the front-rear direction of the vehicle body and is attached to the outer surface of the side wall, and A roller is provided that travels back and forth in the rail from its front end portion and moves backward together with the door.

  The rail includes an inner plate extending along an outer surface of the side wall in a cross-sectional view, an upper plate extending from the upper and lower end edges of the inner plate toward the outer side of the vehicle body, and a lower plate, An outer plate extending downward from the extended end edge of the upper plate of the upper and lower plates to face the inner plate, and the inner space surrounded by the plates of the rail A roller is inserted.

  Then, from the state where the door opening is closed by the door, by applying an external force to the door, if the roller is moved forward from the front end portion in the rail to the rear, the door is also moved together therewith. Moves backward to open the door opening. In this state, if the roller is moved back in the rail by applying an external force to the door, the door is moved forward together with the door and the door opening is closed as in the original state.

Japanese Utility Model Publication No. 6-74440

  By the way, it is assumed that an object in the passenger compartment inside the vehicle body collides with the door due to the occurrence of a side collision during normal traveling of the vehicle with the door opening closed by the door. Then, it is assumed that due to the impact force applied to the door, the door moves toward the outside of the vehicle body, and the roller comes into pressure contact with the outer plate at the front end portion of the rail. In this case, the outer plate of the rail resists the pressure contact force from the roller and prevents the door from moving outward of the vehicle body.

  However, when the impact force of the collision with the door is large and the pressure contact force from the roller to the outer plate of the rail is large, the outer plate of the rail is bent toward the outer side of the vehicle body. There is a risk of deformation or deformation of the upper and lower plates so as to be separated from each other. When such deformation occurs at the front end of the rail, the roller tends to drop out from the front end of the rail, and in this case, a large gap may be generated between the door opening and the door.

  Accordingly, it is conceivable to increase the rail thickness to improve the strength of the rail, thereby preventing various deformations of the front end portion of the rail due to the impact force described above. However, if it does in this way, formation of this sliding door apparatus will become complicated and expensive, and there exists a possibility that the mass of a sliding door apparatus may become unnecessarily large.

  The present invention has been made by paying attention to the above situation, and the object of the present invention is based on the impact force when an object in the passenger compartment inside the vehicle body collides with the slide door during a side collision. It is to effectively prevent the door from moving greatly toward the outside of the vehicle body, and to prevent a large gap from being generated between the door opening on the side wall of the vehicle body and the door closing the door opening. .

  Another object of the present invention is that the slide door device can be easily and inexpensively formed even when a large gap is prevented from being generated between the door opening and the door during a side collision as described above. It is to prevent the mass of the sliding door device from becoming unnecessarily large.

The invention of claim 1 includes a slide door 11 that closes and opens a door opening 10 formed on the side wall 9 of the vehicle body 2, a center rail 14 that extends in the front-rear direction of the vehicle body 2 and is attached to the outer surface of the side wall 9, The rail 14 includes a roller 17 that is guided so as to move backward and forward A and B from the front end of the rail 14 toward the rear, and moves together with the door 11, and the rail 14 is viewed in cross section (FIG. 4). The inner plate 22 extending along the outer surface of the side wall 9, the upper and lower plates 23 and 24 extending from the upper and lower edge portions of the inner plate 22 toward the outer side of the vehicle body 2, and the upper and lower In a sliding door device in a vehicle having an outer plate 25 extending so as to face the inner plate 22 from an extended edge portion of at least one of the plates 23 and 24,
A reinforcing substrate 44 that extends in the vertical direction and connects the front end portions of the upper and lower plates 23 and 24 to each other, and a first reinforcement that extends rearward from the reinforcing substrate 44 along the outer surface of the one plate. A plate 45, a second reinforcing plate 46 extending from the first reinforcing plate 45 along the outer surface of the outer plate 25, and a third extending from the second reinforcing plate 46 and coupled to the reinforcing substrate 44. A sliding door device in a vehicle, characterized in that a reinforcing plate 47 is provided.

  In addition, in this section, the reference numerals and drawing numbers appended to the above terms are not intended to limit the technical scope of the present invention to the “Example” section and the contents of the drawings described later.

  The effects of the present invention are as follows.

According to the first aspect of the present invention, there is provided a slide door for closing and opening a door opening formed on a side wall of a vehicle body, a center rail extending in the front-rear direction of the vehicle body and attached to the outer surface of the side wall, and a front end portion in the rail. A roller that is guided so as to move backward and forward and move together with the door, the rail extending along the outer surface of the side wall in a cross-sectional view, and an upper plate of the inner plate. The upper plate extends from the lower edge toward the outside of the vehicle body, and extends from the extended edge of at least one of the upper and lower plates to face the inner plate. In a sliding door device in a vehicle having an outer plate,
A reinforcing substrate extending in the vertical direction and connecting the front end portions of the upper and lower plates to each other; a first reinforcing plate extending rearward from the reinforcing substrate along the outer surface of the one plate; and the outer side A second reinforcing plate extending from the first reinforcing plate along the outer surface of the plate and a third reinforcing plate extending from the second reinforcing plate and coupled to the reinforcing substrate are provided. Occurs.

  That is, when a vehicle with the door opening closed by the door normally travels, if an object such as an occupant in the passenger compartment inside the vehicle body collides with the door due to a side collision, the impact force applied to the door Thus, the door moves toward the outer side of the vehicle body, and the roller in the center rail presses against the outer plate at the front end of the center rail.

  Here, according to the invention, the outer plate is reinforced by the first reinforcing plate and the second reinforcing plate extending from the first reinforcing plate, and each of the upper plate and the lower plate on the center rail. The second reinforcing plate is also reinforced by being connected to the reinforcing substrate coupled to the front end portion via a third reinforcing plate.

  For this reason, even if the impact force of the collision with the door is large and the pressure contact force from the roller to the outer plate of the center rail is large, the outer plate is bent and deformed toward the outer side of the vehicle body. This is prevented by the reinforcement by the above-described reinforcing substrate and the first to third reinforcing plates.

  Further, even if the pressure contact force from the roller with respect to the outer plate of the center rail is large and the upper and lower plates try to be separated from each other, this connects the front end portions of the lower plate as described above. This is prevented by the reinforcing substrate.

  Therefore, even if the impact force of the collision to the door is large and the pressure contact force from the roller to the outer plate of the center rail is large, various deformations of the front end portion of the center rail are prevented, It is prevented that the roller tends to drop out from the rail. As a result, it is possible to effectively prevent the door from moving greatly toward the outside of the vehicle body due to the impact force at the time of a side collision. Therefore, there is a large gap between the door opening on the side wall and the door. Occurrence is prevented.

  In addition, the prevention of the occurrence of a large gap between the door opening and the door is achieved by a combination of the reinforcing substrate and the first to third reinforcing plates having a compact and simple shape. The sliding door device can be easily and inexpensively formed, and the sliding door device is prevented from being unnecessarily large in mass.

  Furthermore, the combination of the reinforcing substrate and the first to third reinforcing plates has at least two of an outer surface of the one plate and an outer surface of the outer plate, the surface directions of which are different from each other with respect to the front end portion of the center rail. Since the coupling is performed in contact with the surfaces, the reinforcing member can be easily positioned on the front end of the center rail prior to the coupling. Therefore, the work of assembling the reinforcing material to the center rail can be facilitated accordingly.

FIG. 4 is a partially enlarged detail view of FIG. 3. 1 is an overall side view of a vehicle. FIG. 3 is a cross-sectional view taken along line III-III in FIG. 2. It is the IV-IV arrow directional cross-section partial broken view of FIG. It is a perspective view of the front-end part of a rail.

  The present invention relates to a sliding door device in a vehicle according to the present invention, in the event of a side collision, when any object in the passenger compartment inside the vehicle body collides with the sliding door, the door moves greatly toward the outside of the vehicle body due to the impact force. In order to effectively prevent and prevent the occurrence of a large gap between the door opening on the side wall of the vehicle body and the door that closes the door opening, the form for carrying out the present invention is It is as follows.

  That is, a sliding door device in a vehicle has a sliding door that opens and closes a door opening formed on a side wall of the vehicle body, a center rail that extends in the front-rear direction of the vehicle body and is attached to the outer surface of the side wall, and the inside of the rail. A roller which is guided to move backward and forward from the front end and moves together with the door. The rail includes an inner plate that extends along the outer surface of the side wall in a cross-sectional view, an upper plate that extends from the lower end edge of the inner plate toward the outer side of the vehicle body, a lower plate, and the upper plate, And an outer plate extending from the extending edge of at least one of the lower plates so as to face the inner plate.

  A reinforcing substrate extending in the vertical direction and connecting the front end portions of the upper and lower plates to each other; a first reinforcing plate extending rearward from the reinforcing substrate along the outer surface of the one plate; and the outer side A second reinforcing plate extending from the first reinforcing plate along the outer surface of the plate and a third reinforcing plate extending from the second reinforcing plate and coupled to the reinforcing substrate are provided.

  In order to explain the present invention in more detail, an embodiment thereof will be described with reference to the accompanying drawings.

  In the figure, reference numeral 1 denotes a vehicle exemplified by an automobile, and an arrow Fr in the drawing indicates the front in the traveling direction of the vehicle 1.

  The vehicle 1 includes a vehicle body 2 made of sheet metal, and a rear wheel 4 that is suspended from the vehicle body 2 and supports the vehicle body 2 on the running surface 3. Yes.

  A sliding door device 8 is provided on the side of the vehicle body 2. The sliding door device 8 is formed on the side wall 9 of the vehicle body 2, and has a door opening 10 that allows communication between the inside and outside of the vehicle compartment 5, and a sheet metal door 11 that closes the door opening 10 from the outside of the vehicle body 2 so as to be opened and closed. The metal plate upper rail 12, the lower rail 13, and the center rail 14 that extend in the front-rear direction of the vehicle body 2 and are attached to the outer surface of the side wall 9, and the interior of each of the rails 12 to 14 from the front end thereof to the rear. It includes rollers 15 to 17 that are guided to move back and forth A and B and move together with the door 11.

  More specifically, the upper rail 12 is attached to the outer surface of the side wall 9 which is the upper opening edge of the door opening 10 by a fastener (not shown). The lower rail 13 is attached to the outer surface of the side wall 9 which is the lower opening edge of the door opening 10 by a fastener (not shown). The center rail 14 is attached to the outer surface of the middle part in the vertical direction of the side wall 9 behind the door opening 10 by a plurality of front and rear fasteners 21.

  The center rail 14 extends along the outer surface of the side wall 9 in a cross-sectional view (FIG. 4), and is attached to the outer surface of the side wall 9 by the fastener 21, and on the inner plate 22. The upper plate extends integrally from the lower end edge toward the outer side of the vehicle body 2, and the lower plates 23, 24 and the upper plate 23 extend from the extended end edge so as to face the upper portion of the inner plate 22. And an outer plate 25 extending downward. The roller 17 is inserted into an internal space 26 surrounded by the plates 22 to 25, and the internal space 26 is disposed on the outer side of the vehicle body 2 between the extended edge portions of the lower plate 24 and the outer plate 25. A rail opening 27 is formed that opens toward the front.

  The roller 17 is supported by the slide door 11 as follows. That is, a fixing bracket 31 is attached to the surface of the door 11 on the side of the vehicle compartment 5 by a fastener 30, and a pivot bracket 34 is pivoted by a pivot shaft 33 having a longitudinal axis 32 with respect to the stationary bracket 31. It is pivotally supported around 32. The rotating end of the rotating bracket 34 is inserted into the internal space 26 through the rail opening 27 of the center rail 14, and the roller 17 is supported on the rotating end of the rotating bracket 34.

  The roller 17 includes a pair of front and rear lateral rollers 38 and 38 supported by the rotary bracket 34 so as to be rotatable about an axis 37 extending in the vertical direction, and an axis 39 extending in the width direction of the vehicle body 2. A vertical roller 40 is supported by the rotating bracket 34 so as to be rotatable, and is disposed between the front and rear horizontal rollers 38 and 38. Each of the lateral rollers 38 is fitted between the outer plates 22 and 25 in the center rail 14 so that the inner surfaces of these 22 and 25 can roll. The vertical roller 40 can roll on the inner surface (upper surface) of the lower plate 24 of the center rail 14.

  A reinforcing member 43 made of sheet metal is provided to reinforce the front end portion of the center rail 14 in order to improve its strength and rigidity. The reinforcing member 43 extends in the vertical direction, and includes a reinforcing substrate 44 installed on the front end portions of the upper and lower plates 23 and 24, and an upper end of the reinforcing substrate 44 along the outer surface (upper surface) of the upper plate 23. A first reinforcing plate 45 integrally extending rearward from the edge portion, and extending downward downward integrally from the outer edge portion of the first reinforcing plate 45 along the outer surface of the outer plate 25. The second reinforcing plate 46, and a third reinforcing plate that extends integrally from the front edge of the second reinforcing plate 46 and whose extended end is in surface contact with the midway portion of the reinforcing substrate 44 in the vertical direction. 47.

  The lower end portion of the reinforcing substrate 44 is bent rearward and is joined to the outer surface (lower surface) of the front end portion of the lower plate 24 by spot welding S1. The first reinforcing plate 45 is brought into surface contact with the outer surface (upper surface) of the upper plate 23 and joined by front and rear spot welding S2. Accordingly, the front end portions of the upper and lower plates 23 and 24 are coupled to each other by the reinforcing substrate 44. Here, since the coupling portion between the upper plate 23 and the first reinforcing plate 45 is not a portion where the roller 17 rolls, even if coupled by spot welding S2 as described above, the roller 17 does not roll. There is no hindrance. The upper end portion of the reinforcing substrate 44 may be spot welded to the outer surface (upper surface) of the upper plate 23 at a position corresponding to the spot welding S1 in the vertical direction.

  The second reinforcing plate 46 is brought into surface contact with the outer surface of the outer plate 25. Here, the inner surface of the outer plate 25 is a surface on which the lateral roller 38 of the roller 17 rolls, and is required to be smooth. Further, since the outer surface of the second reinforcing plate 46 is exposed toward the outer side of the vehicle body 2, the appearance of the second reinforcing plate 46 is required. Therefore, the second reinforcing plate 46 is not welded to the outer side plate 25, and the generation of welding marks is prevented. On the other hand, the extended end portion side of the third reinforcing plate 47 is coupled to the middle portion of the reinforcing substrate 44 in the vertical direction by spot welding S3.

  Although the above description is based on the illustrated example, the center rail 14 is replaced with the outer plate 25 or, together with this, from the extended edge of the lower plate 24 so as to face the lower portion of the inner plate 22. You may have the other outer side board | substrate extended integrally toward. In this case, similarly to the above configuration, an equivalent plate of the first reinforcing plate 45 is provided along the outer surface (lower surface) of the lower plate 24, and an equivalent plate of the second reinforcing plate 46 is provided along the outer surface of the other outer plate. It may be provided.

  Further, the first reinforcing plate 45 may be connected to the upper plate 23 of the center rail 14 by spot welding S2, or together with this, the second reinforcing plate 46 may be connected to the outer plate 25 by spot welding.

  Further, the reinforcing substrate 44 of the reinforcing member 43 may be brought into contact with the end surfaces of the upper and lower plates 23 and 24 at the front end portion of the center rail 14.

  Then, in the sliding door device 8, by applying an external force to the door 11 from the state shown by the solid line in each drawing in which the door opening 10 is closed by the door 11, the inside of each rail 12 to 14 is moved to its front end. When the rollers 15 to 17 are moved forward A from the rear, the door 11 is moved rearward and the door opening 10 is opened (one-dot chain lines in FIGS. 2 and 3). Further, from this state, by applying an external force to the door 11, if the rollers 15 to 17 are moved backward B in the rails 12 to 14, the door 11 is moved forward together with the doors 11 and the door 11 is moved forward. The opening 10 is closed as in the original state (solid line in each figure).

  The vertical roller 40 of the roller 17 in the center rail 14 when the door 11 and the rollers 15 to 17 are moved backward B and the door opening 10 is fully closed is The reinforcing member 43 is positioned away from the lower end portion of the reinforcing substrate 44 and behind the joint portion by the spot welding S1. Thereby, it is prevented that the vertical roller 40 rides on the welding mark by the spot welding S1.

  As described above, when the door 11 and each of the rollers 15 to 17 are moved backward B and the door opening 10 is fully closed, the lateral roller 38 on the front side of the roller 17 in the center rail 14 is reinforced. The material 43 may abut against the reinforcing substrate 44 to prevent further backward movement B of the door 11 and the rollers 15 to 17. That is, the reinforcing substrate 44 of the reinforcing member 43 may be used as a stopper during the backward movement B of the door 11 and the rollers 15 to 17. In this case, a stopper rubber with which the lateral roller 38 abuts on the rear surface of the reinforcing substrate 44 of the reinforcing member 43 may be attached.

  When the reinforcing substrate 44 of the reinforcing material 43 is used as a stopper during the backward movement B of the door 11 or the like as described above, the reinforcing substrate 44 is another configuration of the reinforcing material 43 as described above. Among the first to third reinforcing plates 45 to 47, the reinforcing function is enhanced by the third reinforcing plate 47, and the strength and rigidity are improved. Achieved more reliably.

  According to the above configuration, the reinforcing substrate 44 that extends in the vertical direction and joins the front end portions of the upper and lower plates 23 and 24 to each other, and the rear side from the reinforcing substrate 44 along the outer surface of the one plate. A first reinforcing plate 45 extending, a second reinforcing plate 46 extending from the first reinforcing plate 45 along the outer surface of the outer plate 25, and the reinforcing substrate 44 extending from the second reinforcing plate 46. And a third reinforcing plate 47 coupled to each other, and the following effects are produced.

  That is, when an object such as an occupant in the passenger compartment 5 inside the vehicle body 2 collides with the door 11 due to a side collision during normal traveling of the vehicle 1 with the door opening 10 closed by the door 11, Due to the impact force F applied to the door 11, the door 11 moves toward the outside of the vehicle body 2, and each lateral roller 38 of the roller 17 in the center rail 14 is moved to the outer plate 25 at the front end of the center rail 14. Press contact.

  Here, according to the above configuration, the cross section of the combination of the first reinforcing plate 45 and the second reinforcing plate 46 extending downward from the outer edge of the first reinforcing plate 45 is inverted L. It has a letter shape and has high strength and rigidity. The outer plate 25 is reinforced by a combination of the first and second reinforcing plates 45 and 46, and is connected to the front end portions of the upper and lower plates 23 and 24 on the center rail 14. The second reinforcing plate 46 is also reinforced by being connected to the substrate 44 via a third reinforcing plate 47.

  For this reason, even if the impact force F of the collision with the door 11 is large and the pressure contact force from the roller 17 to the outer plate 25 of the center rail 14 is large, the outer plate 25 is outside the vehicle body 2. Bending deformation in the direction is prevented by reinforcement by the above-described reinforcing substrate 44 and the first to third reinforcing plates 45 to 47.

  Further, even if the pressure contact force from the roller 17 to the outer plate 25 of the center rail 14 is large and the upper and lower plates 23 and 24 are separated from each other, the rail opening 27 is enlarged. Is prevented by the reinforcing substrate 44 connecting the front end portions of the lower plates 23 and 24 as described above.

  Therefore, even if the impact force F of the collision to the door 11 is large and the pressure contact force from the roller 17 to the outer plate 25 of the center rail 14 is large, various kinds of front end portions of the center rail 14 are various. The deformation is prevented, and the roller 17 is prevented from falling off from the rail 14. As a result, the door 11 is effectively prevented from moving greatly toward the outside of the vehicle body 2 due to the impact force F at the time of a side collision. For this reason, the door opening 10 and the door 11 on the side wall 9 It is possible to prevent a large gap from being generated.

  Further, the prevention of the occurrence of a large gap between the door opening 10 and the door 11 described above is formed of a single plate material and has a compact and simple shape, and the first to first reinforcing substrates 44. The sliding door device 8 can be formed easily and inexpensively, and the mass of the sliding door device 8 is unnecessarily increased because it is achieved by the reinforcing member 43 that is a combination of the three reinforcing plates 45 to 47. Is prevented.

  Further, the reinforcing member 43, which is a combination of the reinforcing substrate 44 and the first to third reinforcing plates 45 to 47, has at least the upper plate 23 having different surface directions with respect to the front end portion of the center rail 14. Since the coupling is performed in contact with the two surfaces of the outer surface and the outer surface of the outer plate 25, the reinforcing member 43 can be easily positioned on the front end portion of the center rail 14 prior to the coupling. Therefore, the work of assembling the reinforcing material 43 to the center rail 14 can be facilitated accordingly.

DESCRIPTION OF SYMBOLS 1 Vehicle 2 Car body 5 Car compartment 8 Sliding door apparatus 9 Side wall 10 Door opening 11 (Slide) Door 14 (Center) Rail 17 Roller 21 Fastener 22 Inner board 23 Upper board 24 Lower board 25 Outer board 26 Internal space 27 Rail opening 43 Reinforcing material 44 Reinforcing substrate 45 First reinforcing plate 46 Second reinforcing plate 47 Third reinforcing plate A Forward movement B Reverse movement F Impact force S1 to S3 Spot welding

Claims (1)

A sliding door that opens and closes a door opening formed on the side wall of the vehicle body, a center rail that extends in the front-rear direction of the vehicle body and is attached to the outer surface of the side wall, and travels backward in the rail from its front end portion toward the rear, A roller that is guided to move backward and moves together with the door, the rail extending along the outer surface of the side wall in a cross-sectional view, and an upper plate and a lower edge of the vehicle body on the inner plate. A vehicle having an upper plate extending outward and a lower plate, and an outer plate extending from an extended edge of at least one of the upper and lower plates so as to face the inner plate In the sliding door device in
A reinforcing substrate extending in the vertical direction and connecting the front end portions of the upper and lower plates to each other; a first reinforcing plate extending rearward from the reinforcing substrate along the outer surface of the one plate; and the outer side A second reinforcing plate extending from the first reinforcing plate along the outer surface of the plate and a third reinforcing plate extending from the second reinforcing plate and coupled to the reinforcing substrate are provided. A sliding door device in a vehicle.

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