JPH0210728B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a full-open lock device for a sliding door device for an automobile.

In conventional sliding door vehicles, a checker, which is an elastic projection, is provided on the roller running surface at the rear end of the lower guide rail in order to maintain the sliding door in the fully open state. Although the roller on the lower side is engaged with the checker, the checker alone is insufficient to prevent the slide door from running out of control on a slope, for example, so a locking device as shown in Fig. 4 is installed. was previously proposed by the present applicant and others.

That is, Figures 2 to 4 illustrate the case of a so-called center pillar-less vehicle that adopts a hinge type front door and a sliding type rear door as shown in Figure 1, and the lower guide rail provided on the side sill of the vehicle body. A checker 2, which is an elastic projection, is provided on the roller running surface at the rear end of the slider 1, and when the sliding door 3 is fully opened, a guide roller 5, which is pivotally supported by a roller bracket 4 on the side of the sliding door 3, climbs over the checker 2. The slide door 3 is engaged with the slide door 3 to maintain the fully open state of the slide door 3. On the other hand, a striker 7 is fixed to the rear end of a center guide rail 6 provided at the waist of the vehicle, and a hook 9 is rotatably supported on a center roller bracket 8 on the side of the sliding door 3. In addition to the checker 2, the hook 9 is configured to engage the striker 7.

According to the above configuration, the fully open state of the sliding door 3 can be reliably maintained unless the engagement between the hook 9 and the striker 7 is released, and there is no fear that the sliding door 3 will run out of control even on a slope, for example. .

When the door is closed, by operating a lock release handle (not shown) provided coaxially with the door handle, the actuating rod 10 is pulled and the hook 9 is rotated clockwise in FIG. The engagement with the

However, according to the above structure, when the roller 5 on the lower side engages with the checker 2, the hook 9 engages and comes into contact with the striker 7, so that the lock is released when the sliding door is closed. While operating the handle, move the sliding door further in the opening direction and close the hook 9 and striker 7.
The problem is that the door must be pulled forward after disengaging the door, making it difficult to operate.

In view of the above-mentioned points, this invention was made for the purpose of improving the release operability of the fully open lock device.For this purpose, in the present invention, when the sliding door is fully open, that is, when the guide roller is While engaged with the checker that maintains the fully open state, the hook provided on the sliding door side and the striker provided on the guide rail side are faced to each other with a certain clearance, and the sliding door is moved in the opening direction. The hook and the striker are engaged for the first time in order to restrain the closed door, and the hook can be released from opposing position by operating the lock release handle in a no-load state.

Hereinafter, one embodiment of the present invention will be described based on the drawings, with the same parts as those of the conventional example being denoted by the same reference numerals.

That is, even in this embodiment, the structure of the checker 2 on the lower guide rail is the same as that shown in FIGS. 2 and 3, and the details are as described above. When the sliding door 3 is fully open, the lower guide roller 5 climbs over checker 2 and engages with it. The full opening locking device in this embodiment is as shown in FIG. 5, and includes a hook 9 pivotally supported by a center roller bracket 8 on the side of the sliding door 3 and a striker 7 provided at the rear end of the center guide rail 6. The relationship between
The hook 9 is made to face each other by setting a clearance such that the two hooks face each other, and the amount of rotation of the hook 9 is regulated so that the two do not come into direct contact. That is, the above-mentioned rotational restriction is performed by the return spring 11 which urges the hook 9 to rotate counterclockwise in FIG. 5 and holds it in the free state at the position shown by the solid line in FIG. In addition, the clearance 1 is such that when the door is fully open and the hook 9 is rotated clockwise in FIG. The dimensions are set so that it can be rotated independently of the striker 7 to the position shown by the dashed line. 12 is a guide roller on the center side, and 13 is an arm connecting the sliding door 3 and the center roller bracket 8.

Therefore, according to the above configuration, when the lock release handle (not shown) is rotated when the door is closed, only an extremely small operating force is required since the hook 9 does not come into contact with the striker 7 and is almost under no load. , the hook 9 is immediately pivoted via the actuating rod 10 to the position indicated by the dash-dotted line in the figure. Then, if the guide roller 5 pulls the sliding door 3 in the closing direction with enough operating force to overcome the checker 2, a predetermined closing operation is achieved. Also,
Even if an unexpected force is applied to the sliding door 3 and the guide roller 5 tries to climb over the checker 2, the striker 7 and the hook 9 engage with each other, so that the door 3 is prevented from running out of control. In the above embodiment, the checker is provided on the lower guide rail and the striker is provided on the center guide rail, but both the checker and the striker may be provided on the lower guide rail. In this case, the hook is attached to the lower guide roller bracket.

As described above, according to the present invention, it is possible to improve the release operability of the lock release handle without impairing the original function of the full-open lock device, and this has the effect of contributing to improving the opening/closing performance and safety of the sliding door. There is.

[Brief explanation of drawings]

Figure 1 shows an example of a hinge type on the front door.
A side view of a center pillarless car with a sliding rear door, Figure 2 is an explanatory diagram of the lower guide rail checker, Figure 3 is a cross-sectional view taken along the - line in Figure 2, and Figure 4 is a conventional fully open lock. FIG. 5 is an explanatory diagram showing an embodiment of the full-open lock device of the present invention. 1... lower guide rail, 2... checkerboard,
3...Sliding door, 5...Guide roller, 6...
...Center guide rail, 7...Striker,
8...Center roller bracket, 9...Hook.

Claims (1)

[Claims] 1. A sliding door device for an automobile in which a guide rail is provided with a checker that engages with a guide roller of the sliding door to maintain the door in a fully open state when the sliding door is fully opened, and a striker is provided at the rear end of the guide rail. On the sliding door side, when a guide roller and a checker are engaged and the door is fully open, when the sliding door is moved in the closing direction against the checker, it engages with the striker and operates the lock release handle. A full opening lock device for a sliding door device for an automobile, which is provided with a hook that faces the striker with a certain clearance so that the hook can be rotated independently by the striker.