JPH0244564Y2 - - Google Patents

Description

[Detailed explanation of the idea] (Industrial application field) The present invention relates to a sliding door structure for an automobile.

(Prior art) Conventionally, many van-type vehicles have openings on the sides of the vehicle body that can be opened and closed with sliding doors.
As described in Japanese Utility Model Application Publication No. 57-45573, this sliding door structure generally has an upper rail, a center rail, and a lower rail on the vehicle body each guiding each guide roller on the sliding door side. The front end of the upper end of the above sliding door,
An upper guide roller, a center guide roller, and a lower guide roller are attached to the rear end of the middle part and the front end of the lower part through brackets, respectively, and each part of the sliding door is prevented from coming off to the outside by the vertical shaft roller of each guide roller. The rear end of the middle section and the front end of the lower end of the sliding door are supported upward by the horizontal shaft rollers of each guide roller.

By the way, each of the vertical shaft rollers that restrain the sliding door from coming off laterally is supported in a cantilevered manner on a small-diameter shaft, so when the vehicle makes a sharp turn or collides, the occupants and cargo inside the vehicle are protected. When a strong impact force is applied from inside the vehicle due to movement, etc.
There was a concern that the support shaft of the vertical shaft roller would be deformed or damaged, causing the sliding door to come off the guide rail.

(Purpose of the invention) The present invention was created in view of the above-mentioned drawbacks, and it is a safe and simple structure that prevents the sliding door from coming off the guide rail even if the roller spindle etc. is deformed or damaged by impact force. The purpose is to provide a sliding door structure.

(Structure of the invention) The sliding door structure for an automobile of the invention includes arms having guide rollers attached to at least the front and lower ends of the upper end on the passenger compartment side of the sliding door that opens and closes the opening on the side of the vehicle body. In a sliding door structure in which each guide rail that guides the guide roller of each arm is provided on the vehicle body above and below the opening, a locking hole is formed in at least the front end wall of the upper guide rail, and the upper end of the sliding door is When the sliding door is closed, the arm at the front end is inserted into and removably inserted into the locking hole, and when an impact force is applied to the sliding door from the passenger compartment side, it engages with the locking hole, and the sliding door is closed. The hook is provided with a hook that restricts the slide in the opening direction.

(Effects of the invention) Since the present invention is constructed as described above, when opening and closing the sliding door under normal conditions, the hook can be freely inserted into and removed from the locking hole without being obstructed by the peripheral wall of the locking hole. On the other hand, when an impact force is applied to the sliding door from the passenger compartment side and the guide roller spindle is deformed or damaged and the sliding door begins to come off outward, the The hook is locked in the locking hole at the front end of the top rail, and at the same time, the hook on the hook prevents the sliding door from sliding in the opening direction, so the sliding door will not come off the guide rail and passengers and luggage will be protected. There is no danger of it falling outside the vehicle, greatly improving safety. Furthermore, this sliding door structure has an extremely simple configuration and can be implemented easily and at low cost.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

As shown in Figures 1 and 2, a sliding door 1 opens and closes an opening in the center of the side of a van-type vehicle.
is the upper guide rail 2 attached to the vehicle body above the opening, the lower guide rail 4 attached to the vehicle body below the opening, and the part that overlaps the slide door 1 when the slide door 1 is opened. It is opened and closed by allowing the upper guide roller 6, lower guide roller 8, and center guide roller 7 attached to the sliding door 1 side to be guided by the center guide rail 3 attached to the middle part of the side panel 5 of the vehicle body, respectively. It is becoming more and more common.

As shown in FIGS. 2 and 3, the above-mentioned upper guide rail 2 is a strip with a U-shaped cross section that opens at the bottom, and is attached to the frame on the side of the roof panel 9, and its front end 2a extends from the front end. It is bent into a horizontal plane at a predetermined position and directed diagonally toward the passenger compartment. The Atsupa arm 10 to which the Atsupa guide roller 6 is attached is located at the front end of the upper end of the sliding door 1.
It is fixed horizontally with a pair of bolts 11 and protrudes from the sliding door 1 toward the passenger compartment, and the vertical shaft roller 6a of the Atsuppa guide roller 6 is attached to the support shaft 6 on the upper side of its tip.
By fitting this vertical shaft roller 6a into the guide groove 12 of the Atsupa guide rail 2 and guiding it, the front end of the upper end of the sliding door 1 is prevented from moving laterally (in the left-right direction). You will be restrained and guided.

As shown in FIGS. 2 and 4, the lower guide roller 8 is connected to a vertical shaft roller 8a attached above the tip of a lower arm 13 protruding inside the front end of the lower end of the sliding door 1. The lower guide rail 4 consists of a horizontal shaft roller 8b attached to the lower side, and the lower guide rail 4 is a strip with an outwardly opening cross section as shown in the figure, and the vertical shaft roller 8a is guided by its guide groove 14, and the vertical shaft roller 8a is supported. The horizontal axis roller 8b is configured to roll on the rail portion 15, and
The front end 4a of the lower guide rail 4 is bent in substantially the same manner as the front end 2a of the upper guide rail 2, and is directed diagonally toward the passenger compartment.

As shown in FIGS. 2 and 5, the center guide roller 7 is a pair of center guide rollers attached to a swingable center arm 18 via a vertical support shaft 17 on a bracket 16 at the rear end of the interrupted portion of the sliding door 1. The center guide rail 3 is a strip with an outwardly opening cross section as shown in the figure, and its guide groove 19 guides the vertical axis roller 7.
a is guided, and the horizontal axis roller 7b on the support rail portion 20 rolls, and the front end portion 3a of the center guide rail 3 is bent in a curved shape toward the interior of the vehicle.

Each guide roller 6, 7 of the sliding door 1,
8 is the front end portion 2a, 3 of each guide rail 2, 3, 4
When guided by straight parts other than a and 4a,
The sliding door 1 is located outside the side panel 5 of the vehicle body and can be opened and closed without interference, and when closing the sliding door 1, each guide roller 9,
7 and 8 move to the front end portions 2a, 3a, and 4a of each guide rail 2, 3, and 4 toward the interior of the vehicle, the sliding door 1 gradually moves toward the interior of the vehicle, and when the sliding door 1 is completely closed, The sliding door 1 fits into the opening and is arranged in the same plane as the side panel 5.

Next, when an impact force is applied to the sliding door 1 from the passenger compartment side, the sliding door 1 is disengaged from the guide rail 2 and is locked.
As shown in Figures to Figure 8, the front end of the Atsupa guide rail 2 is strongly fixed to the frame by a reinforcing plate 21, and a locking plate 22 closes the end face of the Atsupa guide rail 2 at the front end. A locking hole 23 facing the center of the cross section of the guide groove 12 is opened in the locking plate 22, which is fixed in place by welding and forming the front end wall of the upper guide rail 2.

Furthermore, a hook 24 is provided at the tip of the upper arm 10 and protrudes forward from the upper guide roller 6.
is bent from the upper arm 10 and formed one step higher, and when the sliding door 1 is closed, the hook 24 is inserted into and removed from the locking hole 23, and
When the sliding door 1 is fully closed, the hook 24
protrudes toward the front side of the locking hole 23.

Further, a hook portion 24a facing toward the outside of the vehicle interior is formed at the portion of the hook 24 that projects toward the front side of the locking hole 23, so that the sliding door 1 can be pushed outward by an impact force from the vehicle interior side. At times, the hook 24 comes into contact with the circumferential surface of the locking hole 23 and is locked, and the hook portion 24a comes into contact with the front surface of the edge wall of the locking hole 23 to prevent it from coming off.

As described above, when a car makes a sudden turn or collides, the occupants and luggage inside the vehicle move, and an impact force is applied to the sliding door 1 from the passenger compartment side.
When the vertical support shaft 6b is deformed or damaged and the sliding door 1 begins to come off the guide rail 2, the hook 24 moves outward relative to the locking hole 23 and touches the circumferential surface of the locking hole 23. The hook 24 is abutted and locked, and the hook 24 does not come off from the locking hole 23 via the hook portion 24a of the hook 24.

In addition, as a modification of the above embodiment, the locking plate 22
As shown in FIG. 9, a locking hole 23 is formed in the lower part of the upper guide rail 2, and a hook 24 is horizontally extended forward from the tip of the upper arm 10 to lock the locking hole. Hook 2 in hole 23
4 may be inserted.

In this case, since the hook 24 is not restricted by the guide groove 12, the hook 24 can be made large.

Furthermore, the lower guide rail 4 and the lower arm 13
If locking holes 23 and hooks 24 similar to those described above are also provided at the distal ends of the handles, safety will be improved.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; Fig. 1 is a partial perspective view of an automobile, Fig. 2 is an exploded perspective view of the sliding door and each guide rail provided on the car body side,
Figure 3 is a cross-sectional view of the main part, Figure 4 is a vertical cross-sectional view of the lower guide rail, Figure 5 is a vertical cross-sectional view of the center guide rail, Figure 6 is a rear view of the sliding door and frame, and 7 is a partial perspective view of the ATSUPA guide rail, FIG. 8 is a partial perspective view of the ATSUPA arm and the ATSUPA guide rail, and FIG. 9 is a view corresponding to FIG. 7 of a modified example. 1... Sliding door, 2... Atsupa guide rail, 4... Lower guide rail, 6... Atsupa guide roller, 8... Lower guide roller, 10... Atsupa arm, 13... Lower arm, 22... Person in charge Stop plate, 23...Latching hole, 24...Hook.

Claims (1)

[Scope of utility model registration request] Arms having guide rollers are attached to at least the front and lower ends of the upper end on the passenger compartment side of the sliding door that opens and closes the opening on the side of the vehicle body, and each guide rail that guides the guide rollers of each arm is attached to the opening. In the sliding door structure provided on the upper and lower vehicle bodies, a locking hole is formed in at least the front end wall of the upper guide rail, and a locking hole is formed in the arm at the front end of the upper end of the sliding door when the sliding door is closed. A hook that is inserted into and removed from the slide door and has a hook that engages with the locking hole when an impact force is applied to the slide door from the passenger compartment side and restricts the slide door from sliding in the opening direction. A sliding door structure for an automobile characterized by the following.