JP4657659B2 - Vehicle sliding door - Google Patents

Description

  The present invention relates to a vehicle sliding door.

  In general, a sliding door for a vehicle adopted in a wagon box vehicle or the like includes an inner panel that forms the inside of a passenger compartment, and an outer panel that forms an outer shell of the vehicle with an interval in the vehicle width direction. Yes. An impact bar extending along the front-rear direction of the vehicle is disposed between the two panels (see, for example, Patent Document 1).

Roller bracket units are provided above and below the sliding door to move the sliding door forward and backward of the vehicle to open and close the door. Among these, the roller bracket unit fixed to the lower part of the slide door is fixed to the reinforcement fixed to the inner panel (see Patent Document 1 and Patent Document 2).
JP 2000-108665 A JP-A-8-91051

  As described above, the impact bar of the sliding door according to the prior art is simply fixed to the inner surface of the inner panel via the bracket. Therefore, in the configuration of the prior art, the impact is limited only by the rigidity or energy absorption performance of the inner panel and the impact bar itself, and the impact resistance performance is limited.

  This invention is made | formed in view of the said subject, and makes it the subject to provide the sliding door for vehicles which can improve impact resistance performance further.

In order to solve the above-mentioned problems, the present invention is disposed between an inner panel that forms the inside of the passenger compartment, an outer panel that forms an outer shell of the vehicle with an interval in the vehicle width direction, and the inner panel. An impact bar extending substantially along the front-rear direction of the vehicle, and a lower roller bracket that is fixed to the inner panel and supports a roller that rolls along a lower guide rail formed on a lower side of the vehicle body. One end of the bar is connected to the lower roller bracket, and provided with a reinforcement that is fixed to the inner panel and reinforces the connection with the lower roller bracket. The one end of the impact bar is connected to the reinforcement The reinforcement is connected to the lower roller bracket via the attachment, and the reinforcement is joined to the inner surface of the inner panel to A bracket mounting portion that receives the roller bracket, an end wall portion that extends from the bracket mounting portion toward the outer panel, and a bar mounting portion that extends to the outer panel side edge of the end wall portion and receives the impact bar. And the said end wall part is a vehicle sliding door characterized by partitioning the accommodation space of the auxiliary machine mounted between an inner panel and an outer panel .

  In this aspect, since one end of the impact bar is connected to the lower roller bracket, the impact acting on the impact bar is transmitted to the lower roller bracket. As a result, not only the impact bar but also the lower roller bracket and the lower roller bracket It becomes possible to make the vehicle body itself function as a member that receives an impact via the. For this reason, it is possible to propagate the impact from the side portion of the vehicle, which has been received only by the outer panel and the impact bar, to the lower roller bracket and improve the impact absorption and dispersion function.

In addition, the connection between the lower roller bracket and the inner panel is fixed by the reinforcement, and one end of the impact bar is fixed to the reinforcement, so the reinforcement also acts on the impact bar. It will function as a receiving member. Therefore, the impact absorption and dispersion functions are further improved. In addition, because the reinforcement that reinforces the connection between the lower roller bracket and the inner panel also functions as an impact bar mounting member, the cost can be reduced by reducing the number of parts compared to the case where a dedicated bracket is provided. Weight reduction can be achieved. Further, the degree of freedom in layout between the inner panel and the outer panel is increased.

In addition, since an end wall portion extending in the vehicle width direction is formed between the bracket mounting portion and the bar mounting portion, the end wall portion absorbs an impact within an interval in which the outer panel and the inner panel face each other. Is possible. Therefore, when the impact bar receives an impact from the side of the vehicle, a stroke for absorbing the impact applied to the impact bar can be provided in the vehicle width direction, and a living space for the occupant can be secured. In addition, the impact propagated to the impact bar is reliably transmitted from the bar mounting portion to the lower roller bracket attached to the bracket mounting portion through the end wall portion, so that the impact is absorbed and distributed by more structures. It becomes possible.
In addition, since the end wall section defines a storage space for auxiliary equipment mounted between the inner panel and the outer panel, auxiliary equipment such as a power feeding device can be effectively arranged.

  Further, in the above aspect, it is preferable that the end wall portion is inclined so that the bar attachment portion is located behind the vehicle relative to the bracket attachment portion. In this aspect, when receiving an impact diagonally forward from the rear of the vehicle, the end wall portion receives pressure so as to face the end portion in the direction of the impact, so that the absorption and dispersion function of the impact by the end wall portion is improved. There are advantages.

  In another aspect, the end wall portion is formed along the outline of the accommodating portion formed in the inner panel. Also in this aspect, it is possible to secure a space in which the accommodating portion is provided.

  As described above, according to the present invention, since the impact applied to the impact bar can be received even by the lower roller bracket, the impact resistance of the vehicle sliding door is remarkably improved.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

  FIG. 1 is a perspective view showing a main part of a vehicle sliding door 10 according to an embodiment of the present invention, FIG. 2 is a schematic diagram of a rear portion of the sliding door 10, and FIG. 3 is an exploded perspective view of the sliding door 10. 4 and 4 are perspective views showing the assembled state of the slide door 10. In the following description, the front of the vehicle (the left side in FIG. 2 and the corresponding direction in the other figures) is assumed to be the front.

  Referring to these drawings, an illustrated slide door 10 includes an inner panel 11 that forms the inside of a vehicle compartment (not shown), and an outer panel that forms an outer shell of the vehicle with a distance in the vehicle width direction from the inner panel 11. 12. The inner panel 11 has a well-known configuration per se, and although details thereof are omitted, a rectangular accommodating portion 11a for accommodating a beverage bottle or the like is formed in the front portion.

  The outer panel 12 is also a known exterior component, and is formed by pressing a steel plate having a predetermined strength.

  As apparent from FIGS. 2 to 4, a door module unit 14 is disposed between the panels 11 and 12. The door module unit 14 has a plurality of auxiliary machines (14b to 14f) mounted on a module panel 14a and is electrically connected by a wire harness 14g. The door module unit 14 is fixed to the inner surface side of the inner panel 11. Further, as shown in FIGS. 2 and 3, a reinforcement 15 is fixed to the front back surface of the inner panel 11. The inner surface of the inner panel 11 is positioned at a position facing the reinforcement 15 in the vehicle width direction. A lower roller bracket 20 is fixed via the panel 11.

  FIG. 5 is an exploded perspective view showing configurations of the reinforcement 15 and the lower roller bracket 20 according to the embodiment of FIG. FIGS. 6 and 7 are an AA sectional view and a BB sectional view of FIG. 2, respectively.

  Referring to these drawings, the reinforcement 15 includes a bracket mounting portion 15a having a contour along the undulating shape of the inner panel 11, and a rear portion of the bracket mounting portion 15a. This is a sheet metal product that integrally has an end wall portion 15b that bulges out and flange portions 15c and 15d that extend to the end of the end wall portion 15b (the outer end portion in the vehicle width direction).

  The bracket mounting portion 15a is a member that is spot-welded to the inner surface of the outer panel 12, and has a complicated undulating shape as illustrated. A mounting hole 15e for mounting the lower roller bracket 20 is formed in the bracket mounting portion 15a, and a plurality of nuts 17 are fixed to the back surface of the portion where the mounting hole 15e is formed (see FIG. 6). ).

  In the vertical direction, the upper end side of the end wall portion 15b protrudes outward in the vehicle width direction, and is inclined rearward from the middle portion to the lower side. Further, a ridge line 15f corresponding to the undulation of the bracket mounting portion 15a is formed on the end wall portion 15b.

  Referring to FIG. 8, which is a schematic cross-sectional view taken along the line CC of FIG. 5, in this embodiment, the end wall portion 15 b is inclined rearward in the vehicle width direction at the portion near the mounting position of the lower roller bracket 20. Yes.

  Next, referring to FIGS. 3, 5, and 7, the flange portions 15 c and 15 d undulate in the vehicle width direction along the undulation shape of the inner panel 11. Some of them are welding margins 15c that are spot-welded to the inner surface of the inner panel 11, and another part is the front end of the impact bar 18 that is horizontally mounted between the outer panel 12 and the door module unit 14. The bar attachment part 15d to which the part (one end part) 18a is welded is configured. The bar attachment portion 15d is recessed somewhat inward in the vehicle width direction from the welding margin 15c. The impact bar 18 is a cylindrical metal member, and its front end portion 18a is flattened. The rear end portion 18b of the impact bar 18 is fixed to a bracket 19 that is welded to the rear portion of the inner panel 11 during assembly. Further, the impact bar 18 is disposed outside the door module unit 14 in the vehicle width direction. Therefore, when the outer panel 12 receives a collision, the impact propagates from the impact bar 18 to the reinforcement 15.

  In this embodiment, the overall rigidity of the reinforcement 15 is set so as to obtain an impact resistance equal to or higher than that of the impact bar 18. As a result, the load that cannot be completely absorbed by the impact bar 18 is propagated to the lower roller bracket 20 to be described later via the reinforcement 15.

  Next, the lower roller bracket 20 will be described. FIG. 9 is a schematic plan view showing a main part of the lower roller bracket 20 according to the embodiment of FIG.

  3, 5, 6, and 9, the lower roller bracket 20 includes a flange portion 21 that faces the inner panel 11 (the bracket attachment portion 15 a of the reinforcement 15), and the flange portion 21. The arm portion 22 protrudes horizontally, the link portion 23 extends to the free end of the arm portion 22, the holder 24 connected to the link portion 23, and the rollers 25 and 26 attached to the holder 24. is doing.

  The flange portion 21 is a plate-like portion formed in a substantially triangular shape when viewed from the front, and has an insertion hole 21 a facing the mounting hole 15 e formed in the reinforcement 15. Then, the bolts 27 inserted through the respective insertion holes 21 a are screwed into the nuts 17 of the reinforcement 15 to be fixed to the surface of the inner panel 11.

  The arm portion 22 is smoothly bent from the lower end portion of the flange portion 21 and protrudes forward, and is inclined at a predetermined angle so that the distal end side is directed inward in the vehicle width direction. A portion where the flange portion 21 and the arm portion 22 are continuous is raised with the rib 22a curved for reinforcement. In the illustrated embodiment, a rib 22 b that is continuous with the front portion of the flange portion 21 is integrally formed on one side edge of the arm portion 22.

  The link part 23 is a plate-shaped connecting member formed in a rectangular shape, and protrudes from the free end of the arm part 22 in a cantilevered manner by a pair of fixing members 23 a configured in a rivet shape.

  The holder 24 is disposed on the free end side of the link portion 23, and is attached to the link portion 23 so as to be swingable around a vertical line via a support shaft 24a (see FIG. 9).

  The holder 24 is a substantially triangular structure in plan view, and the support shaft 24a is provided in the vicinity of the top of one of the holders 24, and ends for attaching the guide rollers 25 and 26 to the side facing the top. A wall 24c is formed. A pair of mounting members 24d project in a cantilever manner on the end wall 24c, and a guide roller 25 is mounted on the upper portion thereof via a support shaft 24e so as to be rotatable about a vertical line. Further, a guide roller 26 that is rotatable about an axis protruding from the end wall 24c is provided between the guide rollers 25 and 25 on the end wall 24c. Since the functions of the guide rollers 25 and 26 are the same as those of a known configuration, the detailed description thereof will be omitted. However, as shown in FIG. 9, the guide rollers 25 and 26 are brought into rolling contact with a lower guide rail 30 provided on the vehicle body. The slide door 10 is slid and moved forward and backward of the vehicle body. In the illustrated embodiment, the sliding door 10 is in contact with an end wall 31 provided on the vehicle body when the sliding door 10 is closed. In other words, the holder 24 of the lower roller bracket 20 can also function as an impact transmission member that transmits the impact received from the side portion to the vehicle body when the slide door 10 is closed.

  Next, the operation of this embodiment will be described.

  According to the above configuration, it is usually possible to open and close the slide door 10 between the state indicated by the solid line in FIG. 9 and the state indicated by the virtual line.

  Here, when an impact is received from the outer panel 12 when the vehicle is traveling (that is, when the slide door 10 is closed), the outer panel 12 is first deformed and transmitted to the impact bar 18. Here, since one end portion of the impact bar 18 is fixed to the reinforcement 15, the impact propagated to the impact bar 18 is transmitted from the reinforcement 15 to the lower roller bracket 20, and further, It is transmitted to the vehicle body via the wall portion 31. For this reason, even when the outer panel 12 is subjected to a large impact such as deformation, the impact transmitted to the impact bar 18 via the plurality of members (reinforcement 15, lower roller bracket 20, end wall 31) is applied to the vehicle body. It is possible to absorb the impact as much as possible.

  In this embodiment, the front end portion 18a of the impact bar 18 is connected to the lower roller bracket 20 (via the reinforcement 15), so that an impact acting on the impact bar 18 is transmitted to the lower roller bracket 20. As a result, not only the impact bar 18 but also the lower roller bracket 20 and the vehicle body themselves can function as members that receive impact. For this reason, it is possible to propagate the impact from the side portion of the vehicle, which has been conventionally received only by the outer panel 12 and the impact bar 18, to the lower roller bracket 20 and improve the impact absorption and dispersion function.

  In the present embodiment, the lower roller bracket 20 and the inner panel 11 are connected by the reinforcement 15 and the front end portion 18a of the impact bar 18 is fixed to the reinforcement 15. 15 also functions as a member that receives an impact applied to the impact bar 18. Therefore, the impact absorption and dispersion functions are further improved. In addition, since the reinforcement 15 that reinforces the connecting portion between the lower roller bracket 20 and the inner panel 11 is also functioning as an attachment member of the impact bar 18, the number of parts is reduced as compared with the case where a dedicated bracket is provided. Cost reduction and weight reduction can be achieved. Further, the degree of freedom in layout between the inner panel 11 and the outer panel 12 is also increased.

  In the present embodiment, since the end wall portion 15b extending in the vehicle width direction is formed between the bracket attachment portion 15a and the bar attachment portion 15d of the reinforcement 15, the outer panel 12 and the inner panel 11 face each other. This end wall portion 15b can absorb the impact within the interval. Therefore, when the impact bar 18 receives an impact from the side of the vehicle, a stroke for absorbing the impact applied to the impact bar 18 can be provided in the vehicle width direction, and a living space for the occupant can be secured. Further, the impact propagated to the impact bar 18 is reliably transmitted from the bar attachment portion 15d to the lower roller bracket 20 attached to the bracket attachment portion 15a via the end wall portion 15b. Can be absorbed and dispersed.

  Further, in this embodiment, since the bar attachment portion 15d is inclined so as to be positioned behind the vehicle relative to the bracket attachment portion 15a, an impact is applied obliquely forward from the rear of the vehicle as indicated by an arrow AW in FIG. When receiving the pressure, the end wall portion 15b receives pressure so as to face the end portion in the impact direction. As a result, there is an advantage that the shock absorption and dispersion function by the end wall portion 15b is improved.

  Moreover, since the end wall part 15b of this embodiment partitions the accommodation space of the door module unit 14 (auxiliary machine) mounted between the inner panel 11 and the outer panel 12, it is auxiliary machines, such as an electric power feeder. Can be arranged effectively.

  Moreover, since the end wall part 15b of this embodiment is formed along the outline of the accommodating part 11a formed in the inner panel 11, it becomes possible to ensure the space which provides the accommodating part 11a.

  The above-described embodiments are merely examples of preferred specific examples of the present invention, and the present invention is not limited to the above-described embodiments.

  It goes without saying that various modifications are possible within the scope of the claims of the present invention.

It is a perspective view which shows the principal part of the sliding door for vehicles which concerns on one Embodiment of this invention. It is a back surface partial schematic of the sliding door. It is a disassembled perspective view of the same sliding door. It is a perspective view which shows the assembly | attachment state of the same slide door. It is a disassembled perspective view which shows the structure of the reinforcement and lower roller bracket which concern on embodiment of FIG. It is AA sectional drawing of FIG. It is BB sectional drawing of FIG. It is CC sectional schematic drawing of FIG. FIG. 2 is a schematic plan view showing a main part of a lower roller bracket according to the embodiment of FIG. 1.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Sliding door 11 Inner panel 11a Housing part 12 Outer panel 14 Door module unit (an example of auxiliary machine)
15a Bracket mounting portion 15b End wall portion 15c Flange portion 15d Bar mounting portion 15 Reinforcement 18 Impact bar 18a Front end portion (one end portion)
20 Lower roller bracket 30 Lower guide rail 31 End wall

Claims (3)

An inner panel forming the inside of the passenger compartment;
An outer panel that forms an outer shell of the vehicle at an interval in the vehicle width direction from the inner panel;
An impact bar disposed between the panels and extending substantially along the longitudinal direction of the vehicle;
A lower roller bracket that is fixed to the inner panel and supports a roller that rolls along a lower guide rail formed on the lower side of the vehicle body, and one end of the impact bar is connected to the lower roller bracket ,
A reinforcement is provided to reinforce a connecting portion with the lower roller bracket that is fixed to the inner panel, and one end of the impact bar is connected to the lower roller bracket via the reinforcement.
The reinforcement is joined to the inner surface of the inner panel to receive a lower roller bracket, an end wall extending from the bracket mounting toward the outer panel, and extending to an outer panel side edge of the end wall. It has a bar mounting part that is installed and receives the impact bar,
The vehicle sliding door according to claim 1, wherein the end wall section defines a housing space for an auxiliary machine mounted between the inner panel and the outer panel . The sliding door for a vehicle according to claim 1,
The said end wall part inclines so that a bar attaching part may be located in the back of a vehicle rather than a bracket attaching part , The sliding door for vehicles characterized by the above-mentioned . The sliding door for a vehicle according to claim 1 or 2 ,
The said end wall part is formed along the outline of the accommodating part formed in the inner panel, The sliding door for vehicles characterized by the above-mentioned.

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