JP2007168652A - Slide door for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce noise due to flutters of a door during driving a vehicle. <P>SOLUTION: This slide door includes a door body 1 having a window opening 11 at an upper portion, an upper roller 22 disposed at an upper end portion of a front end portion of the door body 1, a lower roller 24 disposed at a lower end portion of the front end portion of the door body 1, a center roller 26 disposed at a rear end portion of the door body 1, and brackets 21, 23, 25 supporting the respective rollers 22, 24, 26 at the door body 1. The door body 1 is slidably supported at the vehicle body by fitting the respective rollers 22, 24, 26 in a guide rail slidably provided at the vehicle body. At least part of a base portion attachment plate 252 of the bracket 25 for the center roller is fixed at a rear portion of the window opening 11 of the vehicle body, upper than an extension line L of a lower edge 11a of the window opening 11. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a sliding door of a vehicle, and more particularly to an arrangement of a center roller bracket provided at a rear end portion of the door.

  FIG. 4 shows a view of a conventional sliding door as seen from the inside of the vehicle. A window opening 11 is formed at the center upper portion of the door body 1 of the sliding door, and an upper roller 22 is provided at the upper portion of the front end portion of the door body 1 by being supported by a bracket 21. Is provided with a lower roller 24 supported by a bracket 23. Further, a center roller 26 is provided at a middle portion in the vertical direction of the rear end portion of the door body 1 so as to be supported by the bracket 25. The door body 1 is slidably supported on the vehicle body by slidably engaging the rollers 22, 24, and 26 with guide rails provided on the vehicle body. A lock device 27 is provided below the center roller bracket 25 so as to be locked to a striker (not shown) on the vehicle body side. When the door is fully closed, the upper roller 22 (actually a down attached to the bracket 21) is provided. The sliding door is positioned at the three points of the stopper 28), the lower roller 24 and the locking device 27. The fixing position of the center roller bracket 25 is set below the extension line L of the window opening lower edge 11a because it is easy to improve the strength of the door panel of the fixing portion.

  Details thereof will be described with reference to FIGS. The door main body 1 has a hollow structure with an inner panel 33 and an outer panel 36 integrated with the edge of the inner panel 33 by hemming (see FIGS. 6 and 7). A large lean reinforcement panel 31 extending in the vertical direction along the rear lower corner portion of the window opening 11 is joined to the vehicle outer surface. A lean reinforcement panel 32 having a smaller width than the lean reinforcement panel 31 is disposed across the extended line L (FIG. 5) of the lower edge 11a of the window opening in the vertical direction. The welded portion is welded to the lean reinforcement panel 31 (marked with x in FIG. 6), and the closed cross-section structure is configured by the lean reinforcement panels 31 and 32. The base mounting plate 251 of the center roller bracket 25 is fixed to the inner panel 33 with bolts 34 at a position below the extension line L of the window opening lower edge 11a where the lean reinforcement panel 32 is located. The locking device 27 is fixed to the inner panel 33 at a position where the lower end portion of the lean reinforcement panel 31 is located below the fixing portion of the base mounting plate 251. 5 and 6, reference numeral 35 denotes a glass guide frame, and in FIGS. 6 and 7, reference numeral 36 denotes a door outer panel.

In addition, the upper roller, the lower roller and the center roller are slidably engaged with the guide rail to support the sliding door, and the center roller bracket is fixed to the door panel below the extension line of the lower edge of the window opening. It is shown in Document 1.
JP 2002-364238 A

  In the conventional sliding door, the base mounting plate 251 of the center roller bracket 25 is fixed to the inner panel 33 below the extension line L of the window opening lower edge 11a. It is necessary to install the lock device 27 considerably below the vertical center position of the rear end of the door. For this reason, the distance h (FIG. 4) between the locking device 27 portion that is locked and restrained by the vehicle body when the sliding door is fully closed and the upper end of the rear end portion of the sliding door that is not restrained becomes longer, and the vehicle travels. There was a problem that noise sometimes occurred due to flapping of the upper part of the rear end of the door.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a vehicle sliding door that can reduce noise caused by flapping of the door during traveling of the vehicle.

  To achieve the above object, according to the first aspect of the present invention, a door body (1) having a window opening (11) in the upper portion, and an upper roller (22) disposed at the upper end of the front end of the door body (1). The lower roller (24) disposed at the lower end of the front end of the door body (1), the center roller (26) disposed at the rear end of the door body (1), and the rollers (22, 24, 26). ) And a bracket (21, 23, 25) that supports the door body (1), and the rollers (22, 24, 26) are slidably engaged with guide rails provided on the vehicle body. The door body (1) is a sliding door of a vehicle that is slidably supported by the vehicle body, and at least a part of the base portion (252) of the center roller bracket (25) is a lower edge of the window opening (11) ( 11a) than the extension line (L) Write a is fixed to the vehicle body at the site of the rear window opening (11).

  In the first invention, since at least a part of the base portion of the center roller bracket is positioned above the extension line of the lower edge of the window opening, a large space for mounting components on the door body below the center roller bracket is ensured. be able to. Therefore, if a lock device is provided in this mounting space, the position of the lock device can be positioned closer to the center in the vertical direction of the rear end of the door, which is higher than before. This shortens the distance between the locking device part that is locked and restrained to the vehicle body when the sliding door is fully closed, and the rear end upper end of the sliding door that is not restrained, and the flapping of the door during vehicle travel, Occurrence of abnormal noise accompanying this is prevented.

  In the second aspect of the invention, the rear end portion of the door body (1) is fixed at a position lower than the fixing portion of the center roller bracket (25), and is locked to the vehicle body when the door body (1) is closed. A lock device (27), a first reinforcing plate (41) provided in the door main body (1) and reinforcing the lock device (27) fixing portion of the door main body (1), and a door main body (1). And a second reinforcing plate (42) for reinforcing the fixing portion of the center roller bracket (25) of the door body (1), wherein the first reinforcing plate (41) is the fixing portion of the center roller bracket (25). In the fixed portion of the center roller bracket (25), the first reinforcing plate (41) and the second reinforcing plate (42) are joined to each other at their front and rear edge portions to form a closed cross-sectional structure. Is configured.

  In the second aspect of the invention, the strength of the door body is improved at the fixed portion of the center roller bracket by the closed cross-sectional structure. Therefore, at least a part of the base of the bracket is extended from the extension line of the lower edge of the window opening. It is also possible to position the lock device fixed below the position close to the center position in the vertical direction of the rear end of the door above the conventional position. This shortens the distance between the locking device part that is locked and restrained to the vehicle body when the sliding door is fully closed, and the rear end upper end of the sliding door that is not restrained, and the flapping of the door during vehicle travel, Occurrence of abnormal noise accompanying this is prevented.

  In addition, the code | symbol in the said parenthesis shows the correspondence with the specific means as described in embodiment mentioned later.

  As described above, according to the sliding door of the vehicle of the present invention, it is possible to reduce abnormal noise caused by flapping of the door during traveling of the vehicle.

  FIG. 1 shows a view of the main part of the rear end of the door body of the sliding door as seen from the inside of the vehicle, and corresponds to FIG. 5 showing a conventional example. 2 and 3 are sectional views taken along lines II-II and III-III in FIG. 1, respectively. The entire structure of the sliding door is the same as that of the conventional example, and the same parts are denoted by the same reference numerals.

  As shown in FIG. 1, at the rear end portion of the door body 1, a lean reinforcement panel 41 as a first reinforcing plate extending in the vertical direction is joined to the vehicle outer surface of the door inner panel 33. The lean reinforcement panel 41 is formed in a cross-sectional shape along the door inner panel 33 (see FIGS. 2 and 3). The upper half portion 412 of the lean reinforcement panel 41 is located above the extension line L of the window closing lower edge 11, that is, in the door window frame portion 12, and is slightly narrower than the door window frame portion 12. The front end edge portion overlaps the front end edge portion of the door inner panel 33 constituting the door window frame portion 12. The rear end edge of the lean reinforcement panel 41 is located near the rear end edges of the door inner panel 33 and the door outer panel 36 integrated by hemming. The lower half portion 411 of the lean reinforcement panel 41 is located slightly lower than the extension line L of the window opening lower edge 11a and is slightly wider, and the door inner panel 33 portion to which the lower half portion 411 is joined and reinforced. A locking device 27 is fixed to the inner side surface of the vehicle.

  A lean reinforcement panel 42 as a second reinforcing plate is joined to the outer side surface of the upper half 412 of the lean reinforcement panel 41. The lean reinforcement panel 42 is substantially the same width as the upper half 412 of the lean reinforcement panel 41, and as shown in FIGS. 2 and 3, the front and rear edges of both lean reinforcement panels 41, 42 overlap. . Both lean reinforcement panels 41 and 42 are fixed to the door inner panel 33 by spot welding to the door inner panel 33 with the front and rear edges thereof being overlapped (indicated by X in FIGS. 2 and 3). Yes. As a result, the lean reinforcement panel 42 and the upper half 412 of the lean reinforcement panel 41 constitute a large closed cross-sectional structure that extends longer than before in the front-rear direction of the door, and the strength of the door body 1 in this portion is increased. It has improved.

  About the upper half 2/3 of the base mounting plate 252 of the center roller bracket 25 is located above the extension line L of the window opening lower edge 11a, and the bolt 34 penetrated from the door inner panel 33 to the lean reinforcement panel 41. It is fixed on the door inner panel 33. The lower half 1/3 of the base mounting plate 252 is located below the extension line L of the window opening lower edge 11a, and is on the door inner panel 33 by a bolt 37 that penetrates the lean reinforcement panel 41 from the door inner panel 33. It is fixed to.

With the above structure, most of the base mounting plate 252 of the center roller bracket 25 can be positioned above the extension line L of the window opening lower edge 11a. The door can be installed close to the vertical center of the rear edge of the door.
Such a locking device 27 is fixed to the door inner panel 33 at a position below the base mounting plate 252 where the lower half 411 of the lean reinforcement panel 41 is located. As a result, the distance h (FIG. 4) between the locking device 27 portion that is locked and restrained by the vehicle body when the sliding door is fully closed and the upper end of the rear edge of the sliding door that is not restrained is shortened. The fluttering of the doors and the generation of unusual noises are prevented.

It is the figure which looked at the principal part of the slide door rear end edge which looked at one embodiment of the present invention from the vehicle inside. FIG. 2 is a horizontal sectional view taken along line II-II in FIG. 1. FIG. 3 is a horizontal sectional view taken along line III-III in FIG. 1. It is the figure which looked at the sliding door from the vehicle inside which shows a prior art example. It is the figure which looked at the principal part of the rear-end part of a slide door from the vehicle inner side which shows a prior art example. FIG. 6 is a horizontal sectional view taken along line VI-VI in FIG. 5. It is a horizontal sectional view in alignment with the VII-VII line of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Door main body, 11 ... Window opening, 11a ... Lower edge, 21 ... Bracket, 22 ... Upper roller, 23 ... Bracket, 24 ... Lower roller, 25 ... Bracket, 252 ... Base mounting plate, 26 ... Center roller, 27 ... Fixing device 41 ... Lean reinforcement panel (first reinforcing plate), 42 ... Lean reinforcement panel (second reinforcing plate), L ... Extension line.

Claims (2)

A door body having a window opening at the top; an upper roller disposed at the top of the front end of the door body; a lower roller disposed at the bottom of the front end of the door body; and a rear end of the door body A center roller and a bracket for supporting each roller on the door body are provided, and the door body is slidably supported on the vehicle body by slidably engaging each roller with a guide rail provided on the vehicle body. At least a part of the base portion of the center roller bracket is fixed to the vehicle body at a position behind the window opening and behind the window opening. Vehicle sliding door. A locking device that is fixed at a lower position than a fixing portion of the center roller bracket at a rear end portion of the door body, and that is locked to a vehicle body when the door body is closed, and is provided in the door body, A first reinforcing plate that reinforces a locking device fixing portion of the door main body; and a second reinforcing plate that is provided in the door main body and reinforces the fixing portion of the center roller bracket of the door main body. A plate extends to a fixing portion of the center roller bracket, and the first reinforcing plate and the second reinforcing plate are joined to each other at their front and rear edge portions in the fixing portion of the center roller bracket. The sliding door for a vehicle according to claim 1, which has a closed cross-sectional structure.

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