JP2005145341A - Slide door device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a slide door device capable of giving a sufficient swing stopping effect for a guide roller, facilitating the management of the relative mounting position accuracy between a female side dovetail and a male side dovetail, and reducing the cost. <P>SOLUTION: The slide door device includes an upper guide rail 1 whose front end is fixed to a vehicle body B through a front bracket 4, and is structured so that a female hole 6 to constitute the female side dovetail is formed between the body B side mounting part by bolt 44 in a mounting piece 41a of the front bracket 4 and the mounting part on the side with the upper guide rail 1, wherein a guide roller bracket 5 is furnished with the male side dovetail 7 to be fitted in the female hole 6 when the slide door 2 is closed fully. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a slide door device that is provided on a side surface of a vehicle body and slides back and forth to open and close an opening, and more particularly to a roller portion steadying technique for a slide door.

2. Description of the Related Art Conventionally, there is known a sliding door device that opens and closes an opening provided on a side surface of a vehicle body by a sliding door supported so as to be slidable back and forth.
As this slide door device, a structure in which a slide roller is slid by rolling a guide roller attached to the slide door along a guide rail extending in the longitudinal direction of the vehicle body is generally used. That is, an upper guide rail and a lower guide rail are provided along the upper and lower edges of the opening on the side of the vehicle body, and an intermediate guide rail is provided along the side of the vehicle body behind the opening. An upper guide roller that rolls the upper guide rail is provided at the upper front end, a lower guide roller that rolls the lower guide rail is provided at the lower front end of the slide door, and an intermediate portion is provided at the rear end intermediate portion of the slide door. An intermediate guide roller that rolls on the guide rail is provided. When an input is made in the front-rear direction with respect to the slide door, each guide roller rolls within each guide rail, so that the entire slide door is predetermined with respect to the vehicle body. It is configured to slide back and forth along the trajectory.

  In the sliding door device as described above, a minute gap is secured between each guide rail and each guide roller in order to smoothly slide the sliding door. That is, due to manufacturing tolerances, if a gap is not formed between the two, the slide may not be smoothly formed. In addition, when sliding the slide door in the front-rear direction, the slide door is moved from the fully closed position so that the entire slide door moves outside the outer surface of the vehicle body from the state where the outer surface of the slide door is along the outer surface of the vehicle body. It must be moved outward. For this reason, each guide rail is formed with a curved portion that is displaced from the inside of the vehicle body toward the outside of the vehicle body, and in particular, the above-described gap is necessary to smoothly slide the curved portion.

  However, in the structure in which a gap is secured between the guide rail and the guide roller as described above, the guide roller can be displaced in the vehicle width direction with respect to the upper guide rail by the amount of the gap. There is a problem of swinging in the direction. In particular, when fully closed, there is a problem that the sliding door easily swings due to vibration during traveling, and noise is generated during traveling.

  Therefore, as a technique for preventing the sliding door from swinging in the vehicle width direction, for example, as shown in FIG. 6, when fully closed, a female side dovetail 103 provided on the vehicle body 101 side and a sliding door 102 side are provided. A technique is known in which the received mail side dovetail 104 is fitted and the sliding door 102 is prevented from swinging in the vehicle width direction due to this fitting (see, for example, Patent Document 1).

JP 2000-142117 A (Specification page 1, FIG. 1)

However, in the above-described conventional technology, the front end portion of the upper guide rail 105 is fixed to the vehicle body 101 with bolts and nuts via the front bracket 106, and the vehicle bracket 101 side fixing portion 107 of the front bracket 106 is used. Since the outer vehicle body 101 is provided with the female dovetail 103, the vehicle body 101 side fixing portion 107 of the front bracket 106 gets in the way, and the upper guide rail 105 and the guide roller 108 to the female dovetail 103. As a result, the effect of restricting the position between the upper guide rail 105 and the guide roller 108 is weakened. As a result, there is a problem in that a sufficient effect of preventing the guide roller 108 from shaking cannot be obtained.
That is, in order to effectively suppress the deflection of the guide roller 108, it is desirable that the dovetails 103 and 104 are disposed as close as possible to the guide roller 108.

  Further, since the female dovetail 103 is attached to the stationary vehicle body 101 and the mail dovetail 104 is attached to the movable sliding door 102, the female dovetail 103 and the mail dovetail 104 are arranged. There is a problem that it becomes difficult to manage the relative mounting position accuracy.

  Further, the female dovetail 103 has a complicated structure and a large number of parts, and thus there is a problem that the parts cost and the assembling cost are high.

  The present invention has been made paying attention to the above-mentioned conventional problems, and can provide a sufficient anti-rest effect of the guide roller, and the relative mounting position of the female side dovetail and the mail side dovetail. An object of the present invention is to provide a sliding door device that can be easily managed in accuracy and can be reduced in cost.

  In order to achieve the above-mentioned object, the sliding door device according to claim 1 of the present application has an upper guide rail attached to the vehicle body, and the sliding door rolls between the rail outer wall and the rail inner wall of the upper guide rail. In the slide door device, the upper guide rail and the guide roller are attached, and the upper portion of the slide door is supported by a slidable movement with respect to the vehicle body with a substantially horizontal opening / closing locus defined by the upper guide rail and the guide roller. The front end of the guide rail is fixed to the vehicle body via the front bracket, and a female hole constituting a female side dovetail is formed between the vehicle body side mounting portion and the upper guide rail side mounting portion of the front bracket, The front end of the sliding door has a convexity that fits into the female hole when the sliding door is fully closed. It was a means, characterized in that email side dovetail is provided.

  The slide door device according to claim 2 is the slide door device according to claim 1, wherein the guide roller is attached to the slide door via a guide roller bracket, and the mail side dovetail is attached to the guide roller bracket. The means is characterized by being attached.

  A sliding door device according to claim 3 is a sliding door device according to claim 1 or 2, wherein an opening edge portion of the female hole is bent toward the front of the vehicle. Is formed.

  The sliding door device according to claim 4 is the sliding door device according to any one of claims 1 to 3, wherein the mail side dovetail is fitted into the female hole when the sliding door is fully closed. And a convex portion that prevents the guide roller from swinging, and an annular elastic stopper portion that abuts on the vehicle rear opening edge of the female hole to stop the excessive movement of the slide door. A feature means.

  In the sliding door device according to the first aspect, as described above, the upper end of the upper guide rail is fixed to the vehicle body via the front bracket, and the vehicle body side mounting portion and the upper guide rail side mounting portion of the front bracket are connected to each other. A female hole forming the female side dovetail is formed between the front end of the sliding door, and a convex mail side dovetail that fits with the female hole when the sliding door is fully closed is provided. As a result, the female hole constituting the female side dovetail can be disposed in the vicinity of the guide roller, and thereby a sufficient steadying effect of the guide roller can be obtained.

  In addition, since the female hole constituting the female side dovetail is provided in the front bracket fixed to the upper guide rail without passing through the vehicle body, the female side dovetail and the mail side dovetail are relatively Management of mounting position accuracy becomes easy.

  Further, since the female dovetail is configured with a hole (female hole), there is no need for any assembly parts, and this makes it possible to reduce part costs and assembly costs.

  In the slide door device according to the second aspect, as described above, the guide roller is attached to the slide door via the guide roller bracket, and the mail side dovetail is attached to the guide roller bracket. Management of the relative mounting position accuracy between the mail side dovetail and the mail side dovetail is further facilitated.

  In the sliding door device according to the third aspect, as described above, the opening edge of the female hole is formed with the cylindrical receiving portion bent toward the front of the vehicle, so that the mail side The abutment area with the dovetail is increased, which makes it possible to increase the durability of the mail side dovetail.

  Further, in the sliding door device according to claim 4, as described above, the mail side dovetail is fitted to the female hole when the sliding door is fully closed to prevent the roller from shaking, The structure is provided with an annular elastic stopper that stops the excessive movement of the slide door by contacting the edge of the opening of the rear of the female hole. Damage and the like can be prevented.

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

The sliding door device of this embodiment corresponds to the invention described in claims 1 to 4.
FIG. 1 is a cross-sectional view taken along line II-II in FIG. 2 showing the main part of the sliding door device of this embodiment, FIG. 2 is a side view showing the sliding door device of the embodiment, and FIG. 3 is a sliding door device of the embodiment. FIG. 4 is a perspective view showing a front bracket part in the sliding door device of the embodiment, and FIG. 5 is a longitudinal sectional view taken along the line VV of FIG.

  Similar to the prior art disclosed in Patent Document 1, the sliding door device of this embodiment includes an upper guide rail 1 (see FIG. 1) provided along the upper edge of the opening on the side surface of the vehicle body that is not shown. A lower guide rail (not shown) provided along the lower edge of the opening outside the figure, an intermediate guide rail (not shown) provided on the side of the vehicle body behind the opening outside the figure, and a sliding door 2 and an upper guide roller 3 that slides along the upper guide rail 1 and a lower guide roller (not shown) that slides on a lower guide rail that is attached to the lower front end of the slide door 2 and that is not shown. ) And an intermediate guide roller (not shown) that is attached to the rear intermediate portion of the slide door 2 and slides on an intermediate guide rail (not shown).

The main configuration of the sliding door device of the present embodiment is applied to the portion indicated by A in FIG. 2, that is, the upper guide rail 1 and the upper guide roller 3.
First, the upper guide rail 1 will be described.
The upper guide rail 1 is formed in a constant cross-sectional shape by roll forming or the like, and is lowered by a rail outer wall 11, a rail upper wall 12, and a rail inner wall 13 as shown in the perspective view of FIG. 4 and the cross-sectional view of FIG. It is formed in a substantially U-shaped cross-sectional shape that is open at the top.
Further, as shown in FIG. 1, the front end of the upper guide rail 1 has a front end curved portion bent in the vehicle body inward direction so as to displace the slide door 2 in the vehicle body inward direction when the slide door 2 is fully closed. 14 is formed.

The upper guide rail 1 is attached to the vehicle body B as follows. That is, as shown in FIGS. 1, 4, and 5, the front end bracket 4 is attached to the front end portion of the upper guide rail 1 by spot welding, and the front end bracket 4 is attached to the vehicle body B with bolts 44 and weld bolts. 45 is attached.
In the upper guide rail 1, a weld bolt 15 is projected from the rail inner wall 13 toward the vehicle body inward in a straight line portion behind the front end curved portion 14, and is fixed to the vehicle body B by a nut 16.

As shown in FIGS. 4 and 5, the front bracket 4 has a general portion opened downward by a bracket outer wall 41, a bracket upper wall 42, and a bracket inner wall 43 to cover the outer surface of the upper guide rail 1. It is formed in a substantially U-shaped cross-sectional shape.
As shown in FIGS. 1 and 4, the mounting piece 41 a is extended from the front end portion of the bracket outer wall 41 to the front and bent so that the front end portion thereof overlaps the vehicle body B, and the rear end of the bracket inner wall 43. The attachment piece 43a extends rearward from the portion and is bent so as to overlap the vehicle body B, and is attached to the vehicle body B by the bolt 44 as described above in the attachment piece 41a and by the weld bolt 45 in the attachment piece 43a. .
Further, a female hole 6 constituting a female side dovetail is formed at the center of the mounting piece 41a in the front bracket 4, and the opening edge of the female hole 6 is bent toward the front of the vehicle. The cylindrical receiving portion 61 is integrally formed.

An upper guide roller 3 that rolls on the upper guide rail 1 is supported on the slide door 2 by a guide roller bracket 5.
That is, the guide roller bracket 5 is attached to the inner side surface of the upper end of the slide door 2 by the bolts 51 and 51. On the upper surface of the guide roller bracket 5, an adjustment bracket 52 is attached by bolts 53, 53 penetrating both brackets 5, 52.

  Although not shown in detail, the bolts 53 and 53 are inserted into a long hole extending in the vehicle width direction of the adjustment bracket 52, and a pin 5p standing on the guide roller bracket 5 is similarly adjusted. When the bolts 53 and 53 are loosened, the adjustment bracket 52 can be moved relative to the guide roller bracket 5 in the vehicle width direction when the bolts 53 and 53 are loosened. As a result, even if the relative position between the vehicle body B and the slide door 2 varies due to manufacturing errors or assembly errors, the positional relationship between the upper guide rail 1 and the upper guide roller 3 is maintained. It is configured to be always constant. The upper guide roller 3 is rotatably attached to a shaft 54 erected on the adjustment bracket 52 in a substantially vertical direction.

The upper guide roller 3 uses a bearing member formed of an existing metal. The inner periphery of the bearing member is mounted on the outer periphery of the shaft 54, and the outer periphery of the bearing member is the upper guide rail 1. It rolls while contacting the rail outer wall 11 and the rail inner wall 13.
Further, the upper guide roller 3 is set to have a diameter slightly smaller than the distance between the rail outer wall 11 and the rail inner wall 13 of the upper guide rail 1 so as to allow for smooth rolling while allowing for manufacturing tolerances. A small gap is always ensured between the upper guide roller 3 and the rail outer wall 11 and the rail inner wall 13 of the upper guide rail 1.
The adjustment bracket 52 is formed with an engaging claw 52b. When the slide door 2 is about to move outward from the vehicle body, the engagement claw 52b engages with an engagement object (not shown) provided on the vehicle body to prevent the slide door 2 from opening.

Further, a mail side dovetail 7 is attached to a mounting portion 55 bent at the front end portion of the adjustment bracket 52 with a fixing screw 71 in a state where the female hole 6 faces. The mail-side dovetail 7 has a metal pin 72 fixed by a fixing screw 71 and a substantially truncated cone shape that fits into the female hole 6 when the slide door 2 is fully closed to prevent the upper guide roller 3 from swinging. , And an annular elastic stopper 74 that stops the excessive movement of the sliding door 2 during an overstroke by contacting the edge of the opening of the female hole 6 at the rear of the vehicle.
The inner diameter of the screw insertion hole 72a of the metal pin 72 is formed to be slightly larger than the outer diameter of the fixing screw 71, so that the attachment position of the female side dovetail 7 can be finely adjusted.

Next, functions and effects of the embodiment will be described.
When the sliding door 2 is slid from the open state to the closing direction, the upper guide roller 3 rolls while contacting the inner side of the upper guide rail 1 against the rail outer wall 11 and the rail inner wall 13, and when the slide door 2 is fully closed, 1, the convex portion 73 of the female side dovetail 7 fixedly attached to the guide roller bracket 5 is fitted into the cylindrical receiving portion 61 of the female hole 6 formed in the front bracket 4. The movement of the slide door 2 is stopped, and the positional relationship between the upper guide rail 1 and the upper guide roller 3 is regulated via the front bracket 4 and the guide roller bracket 5. It is in a prevented state.

  The front end portion of the upper guide rail 1 is fixed to the vehicle body B via the front bracket 4, and the space between the vehicle body B side mounting portion and the upper guide rail 1 side mounting portion by the bolt 44 in the mounting piece 41 a of the front bracket 4. The female hole 6 that constitutes the female side dovetail is formed, and the mail side dovetail 7 that fits the female hole 6 when the sliding door 2 is fully closed is provided in the guide roller bracket 5. The female hole 6 constituting the female side dovetail can be disposed in the vicinity of the upper guide roller 3, and thereby, a sufficient steadying effect of the upper guide roller 3 can be obtained.

  A female hole 6 constituting a female side dovetail is provided in the front bracket 4 fixed to the upper guide rail 1 without passing through the vehicle body B, and the mail side dovetail 7 is attached to the guide roller bracket 5. Due to the above-described configuration, it is possible to easily manage the relative mounting position accuracy between the female hole 6 and the mail side dovetail 7.

  In addition, since the female dovetail is configured with a hole (female hole 6), there is no need for any parts to be assembled, thereby reducing the parts cost and the assembling cost.

  In addition, a cylindrical receiving portion 61 bent toward the front of the vehicle is formed at the opening edge of the female hole 6, so that the contact area with the convex portion 73 in the mail side dovetail 7 is widened. As a result, the durability of the mail side dovetail can be improved.

  Further, the mail side dovetail 7 is fitted to the female hole 6 when the sliding door 2 is fully closed to prevent the upper guide roller 3 from swinging. The ring-shaped elastic stopper 74 that stops the excessive movement of the sliding door 2 when the sliding door 2 is overstroked. Can be prevented.

As described above, the embodiments of the present invention have been described with reference to the drawings. However, the present invention is not limited to the above-described embodiments, and the present invention can be applied even if there is a design change or the like without departing from the scope of the present invention. included.
For example, in the embodiment, the mail side dovetail 7 is configured to include the annular elastic stopper portion 74 in addition to the convex portion 73, but the elastic stopper portion 74 is omitted or provided at another location. May be.
In the embodiment, the tubular receiving portion 61 is integrally formed in the female hole 6, but another member may be attached to the female hole 6.

It is a cross-sectional view in the II-II line of FIG. 2 which shows the principal part of the sliding door apparatus of an Example. It is a side view which shows the sliding door apparatus of an Example. It is a perspective view which shows the guide roller bracket part in the sliding door apparatus of an Example. It is a perspective view which shows the front side bracket part in the sliding door apparatus of an Example. It is a longitudinal cross-sectional view in the VV line of FIG. It is a figure which shows the principal part of the sliding door apparatus of a prior art example.

Explanation of symbols

B Car body 1 Upper guide rail 11 Rail outer wall 12 Rail upper wall 13 Rail inner wall 14 Front end curved portion 15 Weld bolt 16 Nut 2 Slide door 3 Upper guide roller 4 Front bracket 41 Bracket outer wall 41a Mounting piece 42 Bracket upper wall 43 Bracket inner wall 43a Mounting One piece 44 bolt 45 weld bolt 5 guide roller bracket 5p pin 51 bolt 52 bracket 52a long hole 52b engagement claw 53 bolt 54 shaft 55 mounting portion 6 female hole (female side dovetail)
61 Cylindrical receiving part 7 Mail side dovetail 71 Fixing screw 72 Metal pin 72a Screw insertion hole 73 Convex part 74 Elastic stopper part

Claims (4)

An upper guide rail is attached to the vehicle body, and a guide roller that rolls between the rail outer wall and the rail inner wall of the upper guide rail is attached to the slide door. The upper guide rail and the guide roller allow the slide door to move. In the sliding door device in which the upper part has a substantially horizontal opening / closing locus and is slidably supported with respect to the vehicle body,
The upper guide rail has a front end fixed to the vehicle body via a front bracket,
A female hole constituting a female side dovetail is formed between the vehicle body side mounting portion and the upper guide rail side mounting portion of the front bracket,
A sliding door device characterized in that a convex mail side dovetail that fits into the female hole when the sliding door is fully closed is provided at the front end of the sliding door. The sliding door device according to claim 1, wherein the guide roller is attached to the sliding door via a guide roller bracket,
The sliding door device, wherein the mail side dovetail is attached to the guide roller bracket.   3. The sliding door device according to claim 1, wherein a cylindrical receiving portion bent toward the front of the vehicle is formed at an opening edge portion of the female hole. .   4. The slide door device according to claim 1, wherein the mail-side dovetail is fitted with the female hole when the slide door is fully closed to prevent the guide roller from swinging. 5. A sliding door device comprising: an annular elastic stopper portion that abuts against a vehicle rear opening edge portion of the female hole to stop the excessive movement of the sliding door.

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