JPH0246411Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a sliding door for a vehicle, and particularly to the structure of its guide rail.

[Conventional technology]

In FIG. 3, a side opening B of a van-type vehicle has a guide rail R1 along its lower and upper sides.
A guide rail R2 is provided, and a guide rail R3 that also serves as a molding is provided at the center of the rear half of the side surface of the vehicle. A slide door A covering the opening B is provided with a guide roller, which is guided by the guide rails R1, R2, and R3.

That is, at the bottom of sliding door A,
As shown in FIG. 4, an L-shaped bracket A1 projects from the inner surface of the door A, and a vertical roller A2 and a horizontal roller A3 are provided at the tips of the bracket A1.
The vertical roller A2 is the step under panel B2.
The horizontal roller A3 is positioned above to support the door load, while the horizontal roller A3 is rotatably fitted in a guide rail R1 having a U-shaped cross section provided on the lower surface of the step panel B1 to guide the movement of the door A.

By the way, in order to hold the sliding door A at its open end, a catch spring 2 is conventionally provided, for example, at the rear end portion (section C in FIG. 3) of the guide rail R1, as shown in FIG. The catch spring 2 is made of a chevron-shaped plate spring member, one end of which is fixed to the inner side surface of the rail R1, and its protrusion 21 projects into the rail R1 through a notch 11 provided on the inner side surface. There is. Above protrusion 2
1, when the sliding door A is opened, the horizontal roller A3 is held at the rear end (left end in the figure) of the guide rail R1.

As shown in the figure, the rear end of the guide rail R1 is also provided with a horizontal roller loading port 12 by cutting out its outer side surface. The loading port 12 is an opening for loading the horizontal roller A3 (FIG. 4) into the guide rail R1 when installing the sliding door A, and after loading the roller, the reinforcement bonded to the upper surface of the rail R1 is inserted. It is closed by screwing the cover plate 14 to the plate 13.

[Problem that the invention attempts to solve]

In the guide rail R1 having the above structure, notches 11 and 1 are formed on the inner and outer side surfaces of the end portion, respectively.
2, the strength of the rail R1 is reduced, and since the catch spring 2 is located inside the guide rail R1, it is difficult to remove it to adjust the spring force. Also, charging port 1
A cover plate 14 is required to close 2, which increases the number of parts.

[Means for solving problems]

This invention improves the structure of the guide rail in view of the above problems.It does not reduce the strength of the guide rail, has a simple structure, has a small number of parts, and is easy to adjust the catch spring for adjusting the spring force. To provide a sliding door for a vehicle that can be removed without being removed.

In the sliding door of the present invention, as shown in FIG. The protrusion 21 is inserted into the guide rail R1 from the loading port 12.
It is made to protrude inside.

[Effect]

Horizontal roller A3 rolling within guide rail R1
is the protrusion 2 of the catch spring 2 when the door is opened.
1 is pushed outward and reaches the rear end of the guide rail R1, and is held at the rear end position by the protrusion 21, which returns to its original shape after passing through the rollers.

[Embodiment 1] FIG. 1 shows the rear end of the guide rail R1 according to the present invention, and corresponds to section C in FIG. 3. The guide rail R1 has a U-shaped cross section that opens downward (the fourth
(see figure), horizontal roller A installed on sliding door A
3 is fitted on both sides thereof so as to be able to roll and move. A portion of the outer side surface of the guide rail R1 is cut out to form a charging port 12 into which the horizontal roller A3 is inserted when the sliding door A is installed.
After the horizontal roller A3 is inserted into the charging port 12, it is covered with the catch spring 2 and closed.

That is, the catch spring 2 is made of a plate spring member having a plate width approximately equal to the opening height of the charging port 12, and is formed into a chevron shape as a whole. A mounting seat 15 having a nut 151 installed therein is provided near the charging port 12, and one end of the spring 2 is screwed onto the mounting seat 15. In the fixed state, the spring 2 covers the charging port 12, and its protrusion 21 projects from the charging port 12 into the guide rail R1.

When the sliding door A is opened, the horizontal roller A3 moves rearward (to the left in the figure) within the guide rail R1, pushes the protrusion 21 outward, and reaches the rear end of the guide rail R1. The protrusion 21 is a horizontal roller A3
The roller A returns to its original shape after passing through the roller A.
3 is held at the rear end position, and the sliding door A is kept open.

[Embodiment 2] In FIG. 2, the catch spring 2 is formed into a W-shape and has protrusions 21 and 22 at two locations. On the other hand, a notch 12 and a notch 16 are formed as charging ports on both sides of the mounting seat 15 on the outer side surface of the guide rail R1, and the center of the catch spring 2 is screwed into the mounting seat 15. As a result, both cutouts 12, 16 are closed. In this state, the protrusions 21 and 22 each have a cutout 1
2 and 16 into the guide rail R1, and the amount of protrusion is such that the protrusion 21 is larger than the protrusion 22.

According to this structure, when the sliding door A is opened, the horizontal roller A3 is first decelerated by pushing out the protrusion 22 and then further decelerated by the protrusion 21 to smoothly move the slide rail R.
1 and is held there.

[Effect of idea]

As described above, the sliding door of the present invention is provided at the rear end of the guide rail and covers the charging port for loading the horizontal roller with the catch spring, and also allows the protrusion of the catch spring to be inserted into the guide rail from the charging port. The horizontal roller is made to protrude to hold the horizontal roller at the rear end position when the sliding door is opened, and by serving as the loading port and the opening for protruding the catch spring, it prevents the strength of the guide rail from decreasing. In addition, a cover plate for closing the charging port is not required, reducing the number of parts and simplifying the structure.

Further, since the catch spring is provided on the outer side surface of the guide rail to cover the loading port, it can be easily removed to change the amount of protrusion of the spring and adjust the spring force.

[Brief explanation of the drawing]

Figures 1 and 2 are perspective views of the rear end of the guide rail showing the first and second embodiments of the present invention, respectively, and correspond to section C in Figure 3, and each figure shows the catch spring separated. Indicates the state in which FIG. 3 is a side view of a van-type vehicle with the sliding door separated, FIG. 4 is a sectional view taken along the - line in FIG. 3, and FIG. 5 is a perspective view of the rear end of a guide rail showing a conventional example. A...Sliding door, A3...Horizontal roller, B
...Door opening, R1, R2, R3...Guide rail, 12...Charging port, 2...Catch spring, 21...Protrusion.

Claims (1)

[Scope of utility model registration request] In a sliding door in which a horizontal roller provided on the door is guided by a guide rail provided in the front-rear direction along the door opening edge on the side of the vehicle, the rear end of the guide rail where the horizontal roller is located when the door is opened is When installing the door, a loading port is provided for loading the horizontal roller into the guide rail, and a catch spring made of a plate spring member is covered with the loading port, and the protrusion of the catch spring is inserted into the guide rail. A sliding door for a vehicle characterized by protruding into a guide rail from a loading port.