Sliding door fall prevention jig
The sliding door fall prevention jig enables easy and rapid attachment and detachment using a pin and biasing mechanism, addressing the inefficiencies of bolt-based systems by reducing part count and simplifying the mounting process while preventing door fall-off during painting.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- DAIHATSU MOTOR CO LTD
- Filing Date
- 2024-10-30
- Publication Date
- 2026-05-15
AI Technical Summary
Existing jigs for preventing sliding doors from falling off during the painting process require time-consuming attachment and detachment due to the use of bolts, which become stuck with paint, leading to decreased work efficiency and difficulty in removal.
A sliding door fall prevention jig featuring a jig body with a pin portion, biasing portion, and input operation portion that allows easy attachment and detachment via finger operation, eliminating the need for separate components like bolts.
Facilitates quick and reliable prevention of sliding door fall-off during painting, reduces part count, simplifies mounting, and minimizes paint hardening issues, ensuring efficient installation and removal.
Smart Images

Figure 2026079304000001_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a jig for preventing a sliding door from falling off, and particularly to a jig for preventing a sliding door of a vehicle from falling off.
Background Art
[0002] The sliding door of a vehicle is provided with a structure for preventing the sliding door from falling off when the sliding door is closed. For example, in Patent Document 1, a drop prevention structure is disclosed in which one of a pair of stopper brackets that abut against each other in the thickness direction of the sliding door is fixed to the vehicle side, and the other stopper bracket is fixed to the arm of the sliding door with bolts. On the other hand, since the components forming this type of drop prevention structure are attached to the sliding door or the vehicle of the completed vehicle, for example, in the painting process of the vehicle, a jig that replaces these components forming the drop prevention structure is attached to the sliding door or the vehicle to prevent the sliding door from falling off the vehicle during the painting process.
Prior Art Documents
Patent Documents
[0003]
Patent Document 1
Summary of the Invention
Problems to be Solved by the Invention
[0004] In the painting process, paint is sprayed onto the vehicle and sliding door to form a paint film on the surface, and the formed paint film is then heated to harden it. Therefore, if a jig for preventing the sliding door from falling off is attached to the vehicle or sliding door using bolts, etc., for attaching parts that form the anti-fall structure, as described in Patent Document 1, the jig and bolts will be painted along with the vehicle and sliding door, and the paint will harden. This presents a problem in that the bolts become stuck with paint, making it difficult to remove the jig. Ideally, the attachment and removal of this type of jig should be done as quickly as possible from the standpoint of work efficiency, but as mentioned above, if the bolts have to be tightened to attach and then loosened to remove each time, a lot of time must be spent on this task alone, leading to a decrease in work efficiency. Moreover, as mentioned above, if the paint hardens on the bolts and surrounding mechanical elements, each element becomes stiff and difficult to move, which raises concerns about a further decrease in work efficiency.
[0005] In view of the above circumstances, this specification aims to provide a sliding door fall prevention jig that can be easily and quickly attached and detached even during the painting process, as the technical problem to be solved. [Means for solving the problem]
[0006] The aforementioned problem is solved by the sliding door fall prevention jig according to the present invention. Specifically, this jig is characterized by comprising: a jig body that is attached to a rail that slidably supports the sliding door of a vehicle; a pin portion that can be inserted into a hole provided on the side of the rail when the jig body is attached to the rail; a closing portion that closes a rail opening that opens to the side of the rail and allows a slide roller to be introduced into the rail when the jig body is attached to the rail; a biasing portion that biases the pin portion in the direction of insertion into the hole; and an input operation portion that can transmit force to the pin portion by inputting force to move the pin portion in a direction opposite to the biasing force of the biasing portion by operation with a finger.
[0007] As described above, with the sliding door fall prevention jig according to the present invention, the rail opening that opens on the side of the rail to allow the slide roller to be introduced into the rail can be closed simply by attaching the jig body of the jig to the rail. In addition, the biasing part makes it easy to maintain the state in which the pin part is inserted into the hole on the rail side. Therefore, it is possible to easily and reliably prevent the sliding door from falling off during operation. Furthermore, the jig according to the present invention is provided with an input operation part that allows force to be input to the pin part to move it in a direction opposite to the biasing force of the biasing part by finger operation and transmitted to the pin part, so that the pin part can be easily removed from the hole by finger operation alone and the jig according to the present invention can be removed from the rail in a short time. Moreover, with the jig according to the present invention, there is no need to prepare a separate component from the jig or rail, such as a bolt, so the number of parts required for the jig mounting structure can be reduced and the mounting structure can be simplified, so that it is possible to avoid as much as possible the situation in which removal work becomes difficult due to paint hardening. Based on the above, the anti-detachment jig according to the present invention prevents the sliding door from falling off, and also makes it possible to easily and quickly attach and detach the jig during the painting process.
[0008] Furthermore, in the sliding door fall prevention jig according to the present invention, the input operation section may have a pressing section that can be pressed in a direction parallel to the biasing direction of the pin section, and a connecting fixing section that connects the pressing section and the pin section in a state where they are fixed to each other.
[0009] By configuring the input operation section in this way, the pressing part and the pin part can be integrated into a single unit. Therefore, the pin part can be easily removed from the hole and the rail removed simply by pressing along the longitudinal direction of the pin part. Furthermore, with this configuration, the structure from the pressing part to the pin part is simplified to the greatest extent possible, so even if paint hardens, the effect of the hardening can be minimized and the pin part can be easily removed from the hole.
[0010] Furthermore, in the sliding door fall prevention jig according to the present invention, the jig body may be a fall prevention component for a sliding door that is attached to the rail when the vehicle is in its completed state.
[0011] By constructing the jig body in this way, existing parts attached to the rail for fall prevention can be repurposed. Therefore, this jig can be manufactured at a low cost. [Effects of the Invention]
[0012] As described above, the sliding door fall prevention jig according to the present invention makes it possible to easily and quickly attach and detach the jig from the rail even during the painting process. [Brief explanation of the drawing]
[0013] [Figure 1] This is a perspective view of a sliding door fall prevention jig according to one embodiment of the present invention. [Figure 2] Figure 1 is an exploded view of the jig shown. [Figure 3] Figure 1 is a perspective view of the rail to which the jig shown will be attached. [Figure 4] Figure 1 shows the jig attached to the rail shown in Figure 3, from a perspective view. [Modes for carrying out the invention]
[0014] The following describes the contents of a sliding door fall prevention jig according to one embodiment of the present invention, based on the drawings.
[0015] Figure 1 shows a perspective view of a sliding door fall prevention jig 10 according to one embodiment of the present invention. Figure 2 shows an exploded view of the sliding door fall prevention jig 10 shown in Figure 1. As shown in these figures, the sliding door fall prevention jig 10 according to this embodiment comprises a jig body 11, a pin portion 12, a closing portion 13, a biasing portion 14, and an input operation portion 15. The details of each element will be described below.
[0016] The jig body 11 is configured to be attached to a rail 2 (see Figure 3) that slidably supports the sliding door of the vehicle 1. In this embodiment, an insertion portion 11a is provided on one longitudinal end of the jig body 11 that can be inserted into an insertion opening 2a provided on one longitudinal end of the rail 2. By inserting this insertion portion 11a into the insertion opening 2a, the jig body 11 can be attached to a predetermined position on the rail 2 (see Figure 4).
[0017] The pin portion 12 is configured to move integrally with the jig body 11 and to slide relative to the jig body 11. That is, when the jig body 11 is attached to the rail 2 through the insertion operation of the insertion portion 11a described above, the pin portion 12 can be inserted into the hole portion 4 provided on the rail 2 side. In this case, the longitudinal direction of the sliding direction of the pin portion 12 coincides with the longitudinal direction of the jig body 11 (see Figure 1).
[0018] The closing portion 13 is capable of closing the rail opening 2b, which opens to the side of the rail 2 and allows the slide roller 3 to be introduced into the rail 2, when the jig body 11 is attached to the rail 2. In this embodiment, a part of the elongated plate-shaped jig body 11 is bent in a direction perpendicular to the longitudinal direction. In this case, the closing portion 13 is part of the jig body 11.
[0019] The biasing portion 14 is configured to bias the pin portion 12 in the insertion direction d1 of the hole portion 4, and consists of, for example, an elastic member 16 such as a spring, a receiving plate portion 17 that receives one end of the elastic member 16, and a clamping portion that can clamp the elastic member 16 between itself and the receiving plate portion 17. In this embodiment, the clamping portion is a nut 18, which can be screwed onto the male threaded portion 19a of the pressing portion 19, which will be described later. Therefore, by attaching the nut 18 to the male threaded portion 19a and tightening it, the elastic member 16 is compressed and an elastic restoring force is generated, and this restoring force makes it possible to bias the pin portion 12, which is integrally formed with the pressing portion 19, in the restoring direction of the elastic member 16, that is, in the insertion direction d1 of the hole portion 4.
[0020] The input operation unit 15 is configured to input a force for moving the pin portion 12 in a direction against the biasing force of the biasing portion 14 (elastic member 16) by an operation with a finger and transmit it to the pin portion 12. In the present embodiment, the input operation unit 15 includes a pressing portion 19 that can be pressed along a direction parallel to and opposite to the biasing direction of the pin portion 12 (i.e., the insertion direction d1), and a connection fixing portion 20 that connects the pressing portion 19 and the pin portion 12 in a state where they are fixed to each other.
[0021] The pressing portion 19 has, for example, a pin shape and is attached to the jig body 11 via the biasing portion 14 in the present embodiment. More specifically, the pressing portion 19 integrally has a male screw portion 19a provided at one end in its longitudinal direction and a pin main body 19b located on the base end side and continuous with the male screw portion 19a. The base end side of the pin main body 19b and the base end side of the pin portion 12 are fixed to each other via the connection fixing portion 20, whereby the pressing portion 19 and the pin portion 12 are integrated. In this case, the pressing portion 19 and the pin portion 12 are fixed to each other while extending in parallel with each other (see FIG. 2).
[0022] On the other hand, a receiving plate portion 17 extending in a direction orthogonal to the longitudinal direction of the jig body 11 is provided on the other end side in the longitudinal direction of the jig body 11, and an insertion hole 17a through which both the male screw portion 19a and the pin main body 19b of the pin-shaped pressing portion 19 can be inserted is provided in the receiving plate portion 17 (see FIG. 2). Therefore, after inserting the pressing portion 19 (male screw portion 19a and pin main body 19b) into the insertion hole 17a and arranging an elastic member 16 such as a spring on the outer periphery of the inserted pressing portion 19, the nut 18 is attached to and tightened on the male screw portion 19a, thereby completing the assembly of the slide door detachment prevention jig 10. In the present embodiment, both the outer peripheral surface of the pin main body 19b and the inner peripheral surface of the insertion hole 17a have different diameters (non-circular shapes), thereby preventing the pin main body 19b from rotating with respect to the insertion hole 17a. In other words, positioning of the pin main body 19b with respect to the insertion hole 17a is achieved so that the pin portion 12 is disposed at a position facing the hole portion 4 (a position on the central axis of the hole portion 4) in a state where the jig body 11 is attached to the rail 2.
[0023] In the assembled state (shown in Figure 1), both the pressing portion 19 and the pin portion 12 are biased by the biasing portion 14 toward the insertion direction d1 of the pin portion 12. Therefore, for example, if an operator pinches the receiving plate portion 17 and the nut 18 with their fingers and pushes the nut 18 in (applying force in the direction opposite to the biasing force), the pressing portion 19 slides along the insertion hole 17a, and the pin portion 12, which is integrally formed with the pressing portion 19, slides in the same direction as the pressing portion 19, that is, in the direction opposite to the insertion direction d1 (shown by the dashed line in Figure 1). In this state, by inserting the insertion portion 11a of the jig body 11 into the insertion opening 2a and attaching the jig body 11 to the rail 2, the pin portion 12 is positioned to face the hole portion 4 directly. Therefore, by releasing the finger from this state, the pressing portion 19 and the pin portion 12 are biased in the insertion direction d1, causing the pin portion 12 to be inserted into the hole portion 4. In this embodiment, the pin portion 12 is inserted to a position where the seating surface 12a of the pin portion 12 contacts the end surface around the hole portion 4 (see Figure 4). In this way, the installation of the sliding door fall prevention jig 10 to the rail 2 is completed.
[0024] In this manner, the sliding door fall prevention jig 10 is attached to the rail 2, and after carrying out a predetermined manufacturing process (for example, a painting process), the sliding door fall prevention jig 10 is removed from the rail 2. Specifically, the worker grasps the receiving plate portion 17 and the nut 18 with their fingers and pushes the nut 18 in a direction opposite to the insertion direction d1, causing the pressing portion 19 and the pin portion 12 to slide in a direction opposite to the insertion direction d1, and the pin portion 12 to be pulled out of the hole portion 4. Therefore, by grasping the jig body 11 from this state and pulling out the insertion portion 11a from the insertion opening 2a, the removal of the sliding door fall prevention jig 10 from the rail 2 is completed.
[0025] As described above, with the sliding door fall prevention jig 10 according to this embodiment, the rail opening 2b, which opens to the side of the rail 2 and allows the slide roller 3 to be introduced into the rail 2, can be closed simply by attaching the jig body 11 to the rail 2. In addition, the biasing part 14 makes it easy to maintain the state in which the pin part 12 is inserted into the hole part 4 on the rail 2 side. Therefore, it is possible to easily and reliably prevent the sliding door from falling off during operation. Furthermore, the fall prevention jig 10 according to this embodiment is provided with an input operation part 15 that can be used by finger operation to input and transmit force to the pin part 12 to move the pin part 12 in a direction opposite to the biasing force of the biasing part 14. As a result, the pin part 12 can be easily removed from the hole part 4 and the fall prevention jig 10 can be removed from the rail 2 in a short time by finger operation alone. Furthermore, with the anti-detachment jig 10 according to this embodiment, there is no need to prepare a separate component from the anti-detachment jig 10 or the rail 2, such as a bolt. This reduces the number of parts required for the mounting structure of the anti-detachment jig 10, simplifying the mounting structure and thus minimizing the situation where removal becomes difficult due to paint adhesion. In summary, the anti-detachment jig 10 according to this embodiment prevents the sliding door from falling off, and allows for easy and quick installation and removal of the jig 10 during the painting process.
[0026] Furthermore, in this embodiment, the input operation unit 15 is integrally formed with a pressing unit 19 that can be pressed along a direction parallel to the biasing direction of the pin unit 12, and a connecting fixing unit 20 that connects the pressing unit 19 and the pin unit 12 in a fixed state relative to each other. By configuring the input operation unit 15 in this way, the pressing unit 19 and the pin unit 12 can be made into a single unit. Therefore, the pin unit 12 can be easily removed from the hole 4 and the rail 2 removed by only a pressing operation along the longitudinal direction of the pin unit 12. In addition, with this configuration, the structure from the pressing unit 19 to the pin unit 12 (power transmission structure) is simplified to the greatest extent possible, so even if paint has hardened, the effect of the hardening can be minimized and the pin unit 12 can be easily removed from the hole 4.
[0027] Furthermore, in this embodiment, the jig body 11 is used as a sliding door fall prevention component that is attached to the rail 2 when the vehicle 1 is in its completed state. By configuring the jig body 11 in this way, existing components that are attached to the rail 2 for fall prevention can be repurposed. That is, by fixing the receiving plate portion 17 to the jig body 11, which is an existing component, by welding or any other means, and assembling the remaining components (elastic member 16, integrated pin portion 12 and pressing portion 19, nut 18) together, it becomes possible to easily and inexpensively manufacture a sliding door fall prevention jig 10.
[0028] Although one embodiment of the present invention has been described above, the sliding door fall prevention jig according to the present invention may also have configurations other than those described above, without departing from the spirit of the invention.
[0029] For example, in the above embodiment, a pin-shaped pressing portion 19 is supported so as to be biased by an elastic member 16, and a force to pull the pin portion 12 out of the hole portion 4 is input and transmitted to the pin portion 12 by a finger operation that pushes the pressing portion 19 in its longitudinal direction. However, of course, the manner in which the force to pull out the pin portion 12 is input is not limited to this. For example, although not shown in the figures, the pressing portion 19 may be in the shape of a lever, and a rotational force may be input by pressing the lever in a direction that rotates it around its pivot point, and a conversion mechanism that converts the rotational force input to the lever into a sliding force of the pin portion 12 may be configured as a link mechanism or the like, and the conversion mechanism may be arranged between the pressing portion 19 and the pin portion 12, so that a force to pull out the pin portion 12 is input by the rotational operation of the lever, and the input force is converted into linear motion by the conversion mechanism and transmitted to the pin portion 12. [Explanation of Symbols]
[0030] 1 vehicle 2 rails 2a Socket 2b Rail opening 3 Slide rollers 4 Hole 10. Sliding door fall prevention jig 11. Jig body 11a Insertion part 12 Pin section 12a Seat 13 Occlusion 14. Encouraging part 15 Input operation section 16 Elastic members 17 Receiving plate section 17a Through hole 18 nuts 19 Pressing part 19a Male threaded section 19b Pin body 20 Connection fixing part
Claims
1. A jig body that is attached to a rail that supports the sliding door of a vehicle in a slidable manner, With the jig body attached to the rail, a pin portion that can be inserted into a hole provided on the side of the rail, With the jig body attached to the rail, a closing portion closes the rail opening that opens to the side of the rail and allows the slide roller to be introduced into the rail, A biasing portion that biases the pin portion in the insertion direction of the hole portion, A sliding door fall prevention jig comprising an input operation unit capable of transmitting force to the pin portion by finger operation to move the pin portion in a direction against the biasing force of the biasing portion.
2. The sliding door fall prevention jig according to claim 1, wherein the input operation unit has a pressing unit that can press along a direction parallel to the biasing direction of the pin unit, and a connecting fixing unit that connects the pressing unit and the pin unit in a state where they are fixed to each other.