JP7574789B2 - Sliding door open holding jig - Google Patents

Description

The present invention relates to a slide door open holding jig. More specifically, the present invention relates to a slide door open holding jig that holds a slide door, which is connected to the side of a vehicle body so that it can slide in the front-rear direction, in a specified open position.

Patent Document 1 discloses a sliding door open holding jig used in the process of painting the body of an automobile. This sliding door open holding jig is configured to connect the front end of a sliding door installed on the side of the vehicle body to the door frame of the vehicle body so that it can be opened and closed in the vehicle width direction by rotating it. By holding the sliding door in a specified open position, the sliding door open holding jig improves the workability when applying a sealer paint to the door frame of the vehicle body or when applying a hand-spray paint to the sliding door from the inside of the vehicle.

Japanese Patent Application Publication No. 9-206644

The configuration described in Patent Document 1 has a problem in that the opening width of the sliding door is narrowed at the base end of the sliding door, i.e., the base end supported by the sliding door open holding jig. Therefore, the present invention provides a sliding door open holding jig that can hold the sliding door in an appropriately open state relative to the vehicle body.

To solve the above problems, the sliding door open holding jig of the present invention takes the following measures.

In other words, the sliding door open holding jig of the present invention is a sliding door open holding jig that holds a sliding door connected to the side of the vehicle body so that it can slide in the front-rear direction in a predetermined open position, and has a fixed part, a return restriction part, and a movement restriction part. The fixed part is fixed to a center rail on the side of the vehicle body that supports from below a center roller attached to the sliding door. The return restriction part is installed on the contact surface on which the center roller of the center rail rolls, and has a protrusion that can restrict the movement of the center roller in the return direction by abutting against it as the center roller rides over it in the forward direction as the sliding door slides. The movement restriction part faces an accessory member attached to the sliding door from the forward direction as the center roller rides over the protrusion in the forward direction, and restricts the movement of the sliding door in the forward direction by abutting against the accessory member.

According to the above configuration, by sliding the sliding door in the forward direction, the center roller rides over the convex portion of the return restriction portion of the sliding door open holding jig in the forward direction. Also, the accessory member of the sliding door faces the movement restriction portion of the sliding door open holding jig in the forward direction. As a result, the sliding door is restricted from moving in both the forward and return directions at the specified open position to which it has been slid. In this way, the sliding door can be held in an appropriately open state with a rational configuration that utilizes the center roller attached to the sliding door and the center rail on the side of the vehicle body along which the center roller rolls.

The sliding door open holding jig of the present invention may be further configured as follows: The convex portion has a first inclined surface that slopes upward in the direction of travel, and a second inclined surface that slopes downward beyond the first inclined surface. The second inclined surface is formed with a steeper slope than the first inclined surface, and restricts the return movement of the center roller by contacting the center roller.

According to the above configuration, by sliding the sliding door in the forward direction, the center roller can smoothly ride up the first inclined surface of the convex portion, which has a gentle slope, and overcome the first inclined surface to the back of the first inclined surface. In addition, after the center roller overcomes the convex portion, the return movement of the center roller can be appropriately restricted by abutment against the second inclined surface, which has a steep slope.

The sliding door open holding jig of the present invention may be further configured as follows: The fixing portion is fastened by a bolt to a fastening hole formed in the side portion of the center rail facing the vehicle width direction.

The above configuration allows the fixing part to be fixed to the center rail easily and appropriately.

The sliding door open holding jig of the present invention may further be configured as follows: The fastening hole is one of a plurality of fastening holes formed in the center rail for fastening the center rail to the side of the vehicle body.

The above configuration allows the fixing part to be fixed to the center rail in an efficient manner using the fastening holes provided in the center rail.

The sliding door open holding jig of the present invention may further be configured as follows: The sliding door open holding jig further has a rotation restriction portion that restricts rotation of the sliding door open holding jig around the fixed portion relative to the side of the vehicle body by inserting it into an insertion hole formed in the side portion of the center rail or the side of the vehicle body.

The above configuration allows the sliding door open holding jig to be fixed in place against the side of the vehicle body in a state that more appropriately reduces rattling.

The sliding door open holding jig of the present invention may also be configured as follows: The insertion hole is an attachment hole formed in the side of the vehicle body for attaching the rail end cap to the center rail.

The above configuration allows the rotation restriction part to be rationally engaged with the vehicle body side by utilizing the mounting hole provided on the vehicle body side.

The sliding door open holding jig of the present invention may also be configured as follows: The accessory member is a center roller bracket aligned with the center roller in the direction of travel.

According to the above configuration, the center roller bracket abuts against the movement restriction portion, which makes it possible to more appropriately restrict the forward movement of the sliding door from a predetermined open position.

1 is a side view showing a schematic configuration of a slide door open holding jig according to a first embodiment; FIG. 2 is a perspective view illustrating the configuration of a center roller unit. 1 is a perspective view showing a state in which the slide door open holding jig is attached to a center rail. FIG. 1 is an exploded perspective view showing a state in which the slide door open holding jig has been removed from the center rail. FIG. 11 is a perspective view illustrating a state before the center roller rides on a return regulating portion. FIG. 13 is a perspective view illustrating a state in which the center roller has climbed over a protrusion of a return restricting portion. FIG. FIG. 7 is an enlarged view of part VII in FIG. 6 .

Below, the form for implementing the present invention is explained with reference to the drawings.

First Embodiment
(General configuration of slide door open holding jig 1)
First, the configuration of a slide door open holding jig 1 according to a first embodiment of the present invention will be described with reference to Figures 1 to 7. In the following description, when directions such as front, rear, up, down, left and right are indicated, they refer to the respective directions shown in each figure. In each figure, the forward direction refers to the direction in which the vehicle travels. In addition, in the following description, when "vehicle width direction" is indicated, it refers to the left and right direction in each figure. In addition, in the following description, when no specific reference figure is indicated or when there is no reference number corresponding to a reference figure, any of Figures 1 to 7 will be referred to as appropriate.

As shown in FIG. 1, the sliding door open holding jig 1 according to this embodiment is configured as a metal jig used to hold a sliding door 3 attached to a vehicle body side 2 in a predetermined open position during the process of painting the vehicle body side 2 of an automobile. The sliding door 3 is connected to the vehicle body side 2 on the right side of the vehicle so that it can slide in the fore-and-aft direction. The sliding door 3 opens and closes a door opening 2A formed in the vehicle body side 2 by sliding in the fore-and-aft direction relative to the vehicle body side 2. The sliding door 3 slides in the fore-and-aft direction on the outer part of the vehicle body side 2.

The sliding door 3 operates to open the door opening 2A by sliding backward (in the direction of travel) relative to the vehicle body side 2. The sliding door 3 also operates to close the door opening 2A by sliding forward (in the direction of return) relative to the vehicle body side 2. Specifically, the sliding door 3 is connected to the vehicle body side 2 so that it can slide in the fore-and-aft direction by having a guide roller unit 10 attached to its inner side connected to a guide rail 20 attached to the vehicle body side 2 and extending in the fore-and-aft direction.

The guide roller unit 10 has an upper roller unit 10A attached to the upper front end of the inside of the sliding door 3. The guide roller unit 10 also has a center roller unit 10B attached to the middle rear end of the inside of the sliding door 3. The guide roller unit 10 also has a lower roller unit 10C attached to the lower front end of the inside of the sliding door 3.

The guide rail 20 has an upper rail 20A that is provided to extend in the front-rear direction along the upper edge of the door opening 2A of the vehicle side 2. The guide rail 20 also has a center rail 20B that is provided to extend in the front-rear direction in the area rearward of the door opening 2A of the vehicle side 2. The guide rail 20 also has a lower rail 20C that is provided to extend in the front-rear direction along the lower edge of the door opening 2A of the vehicle side 2.

The upper roller unit 10A is connected to the upper rail 20A of the guide rail 20 so as to be slidable in the front-rear direction. The center roller unit 10B is connected to the center rail 20B of the guide rail 20 so as to be slidable in the front-rear direction. The lower roller unit 10C is connected to the lower rail 20C of the guide rail 20 so as to be slidable in the front-rear direction.

Specifically, the upper roller unit 10A and the lower roller unit 10C are each configured to have horizontal rollers (not shown) that are connected to the upper rail 20A and the lower rail 20C in a state in which they are supported from both sides in the vehicle width direction. As a result, the upper roller unit 10A and the lower roller unit 10C are connected to the upper rail 20A and the lower rail 20C in a configuration in which they can slide smoothly in the front-to-rear direction without rattling in the vehicle width direction, accompanied by the rolling of the horizontal rollers (not shown).

The lower roller unit 10C is further configured to have vertical rollers (not shown) that are supported from below on the lower rail 20C so as to support the weight of the sliding door 3. As a result, the lower roller unit 10C is configured to be connected to the lower rail 20C so that it can slide smoothly in the front-rear direction with the rolling of the vertical rollers (not shown).

As shown in FIG. 2, the center roller unit 10B has a pair of horizontal guide rollers 11, one at the front and one at the rear, that are connected to the center rail 20B in a state in which they are supported from both sides in the vehicle width direction. The center roller unit 10B also has a vertical load roller 12 that is supported from below the center rail 20B so that the load of the sliding door 3 is supported by the contact surface 21A on the bottom plate portion 21. Here, the load roller 12 corresponds to the "center roller" of the present invention.

The center roller unit 10B is connected to the center rail 20B via the guide rollers 11 so that it can slide smoothly in the front-rear direction without rattling in the vehicle width direction as the guide rollers 11 roll. The center roller unit 10B is connected to the center rail 20B via the road rollers 12 so that it can slide smoothly in the front-rear direction as the road rollers 12 roll.

The pair of front and rear horizontal guide rollers 11 are each rotatably connected to the top plate of each guide roller bracket 13 that protrudes integrally from the inside of the sliding door 3 via a vertically extending support shaft 13A. The vertically oriented load roller 12 is rotatably connected to the sliding door 3 via a left-right extending support shaft 12A that protrudes from the inside of the sliding door 3 toward the inside in the vehicle width direction (left side in the figure). The load roller 12 is positioned between the pair of front and rear horizontal guide rollers 11.

(Configuration of each part of slide door open holding jig 1)
3 and 4, the sliding door open holding jig 1 is configured by assembling a plurality of plate materials or round bar materials into a shape that forms a long, elongated object in the front-rear direction. More specifically, the sliding door open holding jig 1 is configured by assembling a long, elongated object in the front-rear direction so that it can be assembled into the center rail 20B from a long, elongated outer opening P that is formed over the entire longitudinal area of the center rail 20B and opens to the outside in the vehicle width direction (the right side in the figure).

Specifically, the sliding door open holding jig 1 has a fixing part 1A with a through hole A1 that is fastened by a bolt A2 to a fastening hole 22A formed in the inner plate part 22 of the center rail 20B. Here, the inner plate part 22 of the center rail 20B corresponds to the "side part" of the present invention. In addition, the sliding door open holding jig 1 has a rotation restricting part 1B that extends diagonally upward and rearward from the rear end of the fixing part 1A and is inserted into an insertion hole 2B formed in the vehicle side part 2 to prevent the sliding door open holding jig 1 from rotating.

The slide door open holding jig 1 also has a return restriction part 1C that is set in a state where it is laid on the bottom plate part 21 of the center rail 20B on which the aforementioned road roller 12 (see FIG. 2) rolls. The slide door open holding jig 1 also has a movement restriction part 1D that is connected to the front end part of the fixed part 1A shown in the figure.

The fixed part 1A is made of a metal plate-like member that extends in a long length in the front-rear direction with the front and back sides facing in the vehicle width direction. A through hole A1 that penetrates in the plate thickness direction (vehicle width direction) is formed in the middle part of the fixed part 1A in the front-rear direction. The fixed part 1A is assembled in a fixed state to the inner plate part 22 of the center rail 20B as follows. First, the back side of the fixed part 1A (the left side in the figure) is placed against the inner plate part 22 of the center rail 20B, and the through hole A1 is aligned with the fastening hole 22A, which is the rearmost hole formed in the inner plate part 22. Next, the bolt A2 is inserted into the through hole A1 and the fastening hole 22A from the outside in the vehicle width direction (the right side in the figure) and fastened.

As a result, the fixing portion 1A is fixed in a state where it is integrally overlapped with the inner plate portion 22 of the center rail 20B. The fastening hole 22A is the rearmost hole among the multiple fastening holes 22A formed at multiple locations in the front-rear direction of the inner plate portion 22 in order to bolt the inner plate portion 22 of the center rail 20B to the vehicle body side portion 2. The inner plate portion 22 of the center rail 20B is bent in a shape that rises upward at a right angle from the inner edge portion of the bottom plate portion 21 in the vehicle width direction.

The rotation restriction part 1B is made of a metal round bar bent into a U-shape in plan view. The front end of the rotation restriction part 1B is abutted against a recess formed in the lower rear corner of the fixed part 1A and welded together. The rotation restriction part 1B has an arm part B1 that extends straight out from the point where it is welded to the fixed part 1A diagonally upwards in the rear of the figure, and a bent part B2 that bends at a right angle from the end of the arm part B1 to the inside in the vehicle width direction (left side in the figure).

The rotation restriction part 1B is assembled in a state where it is inserted into the insertion hole 2B formed in the vehicle body side part 2 as follows. That is, first, when the fixing part 1A described above is applied to the inner plate part 22 of the center rail 20B, the bent part B2 of the rotation restriction part 1B is also inserted from the outside in the vehicle width direction (the right side in the figure) into the round hole-shaped insertion hole 2B formed in the vehicle body side part 2. This sets the bent part B2 in a state where its position in the front-rear and up-down directions is determined with respect to the insertion hole 2B.

In this state, the return restriction portion 1C (described later) is grounded on the bottom plate portion 21 of the center rail 20B, so that the through hole A1 of the fixed portion 1A is set in a state where it is aligned with the rearmost fastening hole 22A formed in the inner plate portion 22 of the center rail 20B. Therefore, from this state, the bolt A2 is inserted into the through hole A1 and the fastening hole 22A to fasten the fixed portion 1A to the inner plate portion 22, so that the bent portion B2 of the rotation restriction portion 1B is fixed in a state where it is inserted into the insertion hole 2B.

The insertion hole 2B is formed in the vehicle width direction at a location rearward and upwardly offset from the center rail 20B of the vehicle side portion 2. The insertion hole 2B is formed as an attachment hole for attaching a rail end cap (not shown) that is attached to the rear end of the center rail 20B from the outside in the vehicle width direction after a series of painting processes. Therefore, as described above, the bent portion B2 of the rotation restriction portion 1B is inserted into the insertion hole 2B of the vehicle side portion 2, and the fixing portion 1A is fastened to the inner plate portion 22 of the center rail 20B by the bolt A2, thereby restricting the rotation of the sliding door open holding jig 1 in both directions relative to the center rail 20B around the bolt A2.

The return restriction portion 1C has a bottom plate portion C1 made of a metal plate-like member extending forward from the lower front end of the fixed portion 1A, and a side plate portion C2 made of a metal plate-like member welded to the bottom plate portion C1 so as to rise upward at a right angle from the edge of the bottom plate portion C1 on the left side in the figure. The bottom plate portion C1 is generally shaped like a flat plate extending in the front-rear direction with the front and back sides facing up and down, and is configured such that a convex portion C3 that protrudes upward in a mountain-like shape is formed at its front end portion. The convex portion C3 is formed in a shape that protrudes higher above the upper surface of the flat-extending general surface portion of the bottom plate portion C1. The convex portion C3 is formed in a shape that extends with the same cross-sectional shape over the entire area of the bottom plate portion C1 in the plate width direction (left-right direction).

As shown in FIG. 7, the convex portion C3 has a convex shape with a first inclined surface Ca forming the slope of the front side of the mountain as shown, and a second inclined surface Cb forming the slope of the rear side of the mountain beyond the first inclined surface Ca. The bottom edge of the first inclined surface Ca, which descends the slope to the front side as shown, extends to a position lower than the top surface of the flat-shaped general surface portion of the bottom plate portion C1, forming the front edge of the bottom plate portion C1.

The second inclined surface Cb is formed in a shape that forms a continuous downward slope in a bent shape from the upper edge of the first inclined surface Ca that rises to the rear side in the figure. The bottom edge of the second inclined surface Cb that descends to the rear side in the figure is shaped to connect with the upper surface of the general surface portion that extends in a flat plate shape of the bottom plate portion C1. The second inclined surface Cb is formed in a shape that is narrower in width in the front-to-rear direction than the first inclined surface Ca, and has a steeper slope than the first inclined surface Ca.

As shown in Figures 3 and 4, the side plate portion C2 has a flat shape extending in the front-rear direction with the front and back surfaces facing in the left-right direction. The lower edge of the side plate portion C2 is welded to the left edge of the bottom plate portion C1 from the left side in the figure. The rear edge of the side plate portion C2 is welded to the front edge of the fixing portion 1A from the left side in the figure. The side plate portion C2 is disposed on the left edge of the bottom plate portion C1 in the figure so as to extend over a wide range in the front-rear direction from the midpoint of the inclination of the first inclined surface Ca of the bottom plate portion C1 to the rear end of the bottom plate portion C1.

The return restriction portion 1C is firmly and integrally joined to the fixed portion 1A by assembling the bottom plate portion C1 and the side plate portion C2 into an L-shaped plate and welding them to the fixed portion 1A, and is configured to appropriately increase the structural strength against bending and twisting. The return restriction portion 1C is set in a state in which the bottom plate portion C1 is grounded on the bottom plate portion 21 of the center rail 20B by assembling the fixed portion 1A and the rotation restriction portion 1B of the slide door open holding jig 1 into the fastening hole 22A of the center rail 20B and the insertion hole 2B of the vehicle body side portion 2 in the above-mentioned procedure. As a result, the return restriction portion 1C is set in a shape in which its first inclined surface Ca forms a gentle upward slope that is connected to the ground contact surface 21A on the bottom plate portion 21 of the center rail 20B via a slight step in the height direction.

The movement restricting portion 1D is made of a metal rectangular column-shaped member that extends in the left-right direction and is welded to the front edge of the fixed portion 1A. The movement restricting portion 1D is welded with its illustrated rear surface abutting against the front edge of the fixed portion 1A. The movement restricting portion 1D is provided in a state in which it extends in the left-right direction in the area directly above the rear end region of the bottom plate portion C1, and its illustrated front surface is oriented straight forward.

As shown in FIG. 5, the slide door open holding jig 1 is assembled across the center rail 20B and the vehicle body side 2 with the center roller unit 10B moved forward (removed) from its attachment point on the center rail 20B. After assembly, the slide door open holding jig 1 slides the slide door 3 rearward, causing the load roller 12 to ride up onto the convex portion C3 of the return restriction portion 1C and then onto the general surface portion of the bottom plate portion C1 beyond the convex portion C3 to the rear in the figure, as shown in FIG. 6.

As shown in FIG. 7, the road roller 12 climbs up from the ground contact surface 21A of the bottom plate portion 21 of the center rail 20B onto the first inclined surface Ca of the convex portion C3, which has a gentle slope, and then moves smoothly on the first inclined surface Ca toward the rear in the figure, and is able to climb over the convex portion C3 rearward. After climbing over the convex portion C3 rearward, the road roller 12 finds itself in a state where the second inclined surface Cb of the convex portion C3, which has a steep slope, stands in the way of the road roller 12 at a position behind it, in the front side in the figure.

As a result, the load roller 12 comes into contact with the steeply inclined second inclined surface Cb of the protrusion C3, and its return movement toward the front in the figure relative to the center rail 20B is restricted. As a result, the sliding door 3 is restricted from closing in the open position by sliding forward in the figure. Also, as shown in FIG. 6, the load roller 12 rides over the protrusion C3 of the return restriction part 1C rearward in the figure and onto the general surface part, so that the movement restriction part 1D approaches from the rear in the figure and faces the rear surface of the guide roller bracket 13 on the rear side in the figure.

As a result, the illustrated rear guide roller bracket 13 is restricted in its movement toward the rear relative to the center rail 20B by abutting against the movement restricting portion 1D. As a result, the sliding door 3 is restricted in its opening movement toward the rear in the above-mentioned open position. As a result, the sliding door 3 can be held in a predetermined open position where movement in both directions in the above-mentioned sliding direction is restricted. Here, the illustrated rear guide roller bracket 13 corresponds to the "accessory member" and "center roller bracket" of this invention.

The open-holding state of the sliding door 3 can be released by the worker applying a strong force in the closing direction to the sliding door 3 such that the load roller 12 rides forward over the second inclined surface Cb of the protruding portion C3. Specifically, when the worker applies the strong force in the closing direction to the sliding door 3, the load roller 12 rides up the second inclined surface Cb and rides forward over the protruding portion C3 in the illustrated direction. This returns the load roller 12 to the ground contact surface 21A of the bottom plate portion 21 of the center rail 20B and disengages it from the engagement state with the sliding door open-holding jig 1.

Even if the load roller 12 is removed forward from the slide door open holding jig 1, the slide door open holding jig 1 remains assembled across the center rail 20B and the vehicle side 2. Therefore, with the slide door open holding jig 1 assembled across the center rail 20B and the vehicle side 2, the slide door 3 can be repeatedly opened and closed any number of times, and can be held open in a specified open position.

This improves the workability of a series of operations, such as applying a sealer coating around the door opening 2A of the vehicle body side 2 shown in FIG. 1, applying hand-spray coating to the sliding door 3 from the inside of the vehicle, and then inspecting the finished product. The sliding door open holding jig 1 can be easily removed from its attached state to the center rail 20B by releasing the bolt A2 shown in FIGS. 3 and 4 from its fastening hole 22A in the center rail 20B. In addition, after being removed as described above, the sliding door open holding jig 1 can be reused any number of times.

The sliding door open holding jig 1 is configured to be attached to the center rail 20B of the vehicle body side 2, so that it can be easily attached to and removed from the center rail 20B at a position that is easily reachable and easily visible to an operator standing outside the vehicle.

In summary, the slide door open holding jig 1 according to this embodiment has the following configuration. Note that the reference characters in parentheses below correspond to the respective components shown in the above embodiment.

That is, the sliding door open holding jig (1) is configured as a jig that holds the sliding door (3) connected to the vehicle body side part (2) so that it can slide in the front-rear direction in a predetermined open position. The sliding door open holding jig (1) has a fixing part (1A), a return restricting part (1C), and a movement restricting part (1D). The fixing part (1A) is fixed to a center rail (20B) of the vehicle body side part (2) that supports from below the center roller (12) attached to the sliding door (3).

The return restriction part (1C) is installed on the contact surface (21A) on which the center roller (12) of the center rail (20B) rolls, and has a protrusion (C3) that can restrict the return movement of the center roller (12) by abutting against it as the sliding door (3) slides and the center roller (12) rides over it in the forward direction. The movement restriction part (1D) faces an accessory member (13) attached to the sliding door (3) from the forward direction as the center roller (12) rides over the protrusion (C3) in the forward direction, and restricts the forward movement of the sliding door (3) by abutting against the accessory member (13).

According to the above configuration, by sliding the sliding door (3) in the forward direction, the center roller (12) rides over the protruding portion (C3) of the return restriction portion (1C) of the sliding door open holding jig (1) in the forward direction. Also, the accessory member (13) of the sliding door (3) faces the movement restriction portion (1D) of the sliding door open holding jig (1) in the forward direction. As a result, the sliding door (3) is restricted from moving in both the forward and return directions at the predetermined open position. In this way, the sliding door (3) can be appropriately held open by a rational configuration that utilizes the center roller (12) attached to the sliding door (3) and the center rail (20B) of the vehicle body side portion (2) on which the center roller (12) rolls.

The protruding portion (C3) has a first inclined surface (Ca) that slopes upward in the direction of travel, and a second inclined surface (Cb) that slopes downward beyond the first inclined surface (Ca). The second inclined surface (Cb) is formed with a steeper slope than the first inclined surface (Ca) and restricts the return movement of the center roller (12) by contacting the center roller (12).

According to the above configuration, by sliding the sliding door (3) in the forward direction, the center roller (12) can smoothly ride up the first inclined surface (Ca) of the convex portion (C3), which has a gentle slope, and can overcome the first inclined surface (Ca) to the back of the first inclined surface (Ca). In addition, after the center roller (12) rides over the convex portion (C3), the return movement of the center roller (12) can be appropriately restricted by abutment with the second inclined surface (Cb), which has a steep slope.

The fixing portion (1A) is fastened by a bolt (A2) to a fastening hole (22A) formed in a side portion (22) of the center rail (20B) facing the vehicle width direction. With the above configuration, the fixing portion (1A) can be easily and appropriately fixed to the center rail (20B).

The fastening hole (22A) is one of a plurality of fastening holes (22A) formed in the center rail (20B) for fastening the center rail (20B) to the vehicle body side portion (2). With the above configuration, the fixing portion (1A) can be rationally fixed to the center rail (20B) using the fastening hole (22A) provided in the center rail (20B).

The sliding door open holding jig (1) further has a rotation restriction portion (1B) that restricts rotation of the sliding door open holding jig (1) around the fixed portion (1A) relative to the vehicle body side portion (2) by inserting it into an insertion hole (2B) formed in the vehicle body side portion (2). With the above configuration, the sliding door open holding jig (1) can be fixed to the vehicle body side portion (2) in a state that more appropriately suppresses rattling.

The insertion hole (2B) is an attachment hole formed in the vehicle body side portion (2) for attaching the rail end cap to the center rail (20B). With the above configuration, the rotation restriction portion (1B) can be rationally engaged with the center rail (20B) by utilizing the attachment hole provided in the center rail (20B).

The accessory member (13) is a center roller bracket (13) that is aligned with the center roller (12) in the direction of travel. With the above configuration, the center roller bracket (13) abuts against the movement restriction portion (1D), making it possible to more appropriately restrict the movement of the sliding door (3) in the direction of travel from a predetermined open position.

Other embodiments
Although one embodiment of the present invention has been described above, the present invention can be embodied in various forms as described below in addition to the above embodiment.

1. The sliding door open holding jig of the present invention may be used in the process of painting the body of an automobile, or may be used to hold a sliding door in a specified open position at times other than painting. The sliding door open holding jig may also be configured to be used to hold a sliding door connected to the side of the body of a vehicle other than an automobile, such as a train, in a specified open position.

2. The fixing portion of the sliding door open holding jig may be fixed to the center rail on the side of the vehicle body using a snap-fit engagement structure, in addition to a fastening structure such as a bolt. The fastening hole formed in the side of the center rail for fastening the fixing portion with a bolt may be a hole other than the fastening hole formed in the center rail for fastening the center rail to the side of the vehicle body.

3. The convex portion of the return restriction portion may be configured such that a first inclined surface that slopes upward in the direction of travel and a second inclined surface that slopes downward beyond the first inclined surface have the same gradient. Also, instead of the second inclined surface, the convex portion may be configured with a stepped surface that rises in a step-like manner, or a curved surface that rises in a convex or concave curved manner.

4. The movement restriction portion may be a convex configuration that restricts the movement of the sliding door by abutting against the center roller, like the convex portion of the return restriction portion. In that case, the center roller becomes an "attached member attached to the sliding door" that abuts against the movement restriction portion.

5. The insertion hole into which the rotation restriction part is inserted may be a hole other than the mounting hole of the rail end cap formed in the side of the car body. The insertion hole may also be a hole formed in the side of the center rail, in addition to the side of the car body.

REFERENCE SIGNS LIST 1 Slide door open holding jig 1A Fixed portion 1B Rotation restricting portion 1C Return restricting portion 1D Movement restricting portion A1 Through hole A2 Bolt B1 Arm portion B2 Bent portion C1 Bottom plate portion C2 Side plate portion C3 Convex portion Ca First inclined surface Cb Second inclined surface 2 Vehicle body side portion 2A Door opening 2B Insertion hole 3 Slide door 10 Guide roller unit 10A Upper roller unit 10B Center roller unit 10C Lower roller unit 11 Guide roller 12 Load roller (center roller)
12A Support shaft 13 Guide roller bracket (accessory member, center roller bracket)
13A Support shaft 20 Guide rail 20A Upper rail 20B Center rail 20C Lower rail 21 Bottom plate portion 21A Ground surface 22 Inner plate portion (side portion)
22A Fastening hole P Outer opening

Claims (7)

A slide door open holding jig that holds a slide door, which is connected to a vehicle body side portion so as to be slidable in the front-rear direction, in a predetermined open position,
a fixing portion fixed to a center rail on the side of the vehicle body, the fixing portion supporting a center roller attached to the sliding door from below;
a return restriction portion that is provided on a contact surface on which the center roller of the center rail rolls and has a protrusion that allows the center roller to ride over the protrusion in the forward direction as the sliding door slides, thereby restricting the return movement of the center roller by abutting against the protrusion;
a movement restricting portion that faces an accessory member attached to the sliding door from the direction of travel by the center roller riding over the convex portion in the direction of travel and restricts the movement of the sliding door in the direction of travel by abutting against the accessory member. The slide door open holding jig according to claim 1,
The convex portion has a first inclined surface that slopes upward in the direction of travel and a second inclined surface that slopes downward beyond the first inclined surface, and the second inclined surface is formed to have a steeper slope than the first inclined surface, thereby restricting the movement of the center roller in the return direction by abutting against the center roller. The slide door open holding jig according to claim 1 or 2,
The fixing portion is fastened by a bolt to a fastening hole formed in a side portion of the center rail facing in the vehicle width direction. The slide door open holding jig according to claim 3,
The fastening hole is one of a plurality of fastening holes formed in the center rail for fastening the center rail to the side of the vehicle body. The slide door open holding jig according to claim 3 or 4,
The sliding door open holding jig further has a rotation regulating portion that regulates rotation of the sliding door open holding jig around the fixed portion relative to the vehicle body side by inserting it into an insertion hole formed in the side portion or the vehicle body side of the center rail. The slide door open holding jig according to claim 5,
The insertion hole is an attachment hole formed in the side portion of the vehicle body for attaching a rail end cap to the center rail. The slide door open holding jig according to any one of claims 1 to 6,
The accessory member is a center roller bracket arranged on the side of the center roller in the direction of travel of the sliding door.

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