DE4205892C1 - Pivot-mounted push-open door for road vehicle - is joined to vehicle wall via drivable pivot levers and guide rails and is movable between three positions - Google Patents

Abstract

In a first closed position of the door, it locates with the pivot levers pivoted inwards in the vehicle longitudinal direction in a door opening of the vehicle side wall as part of the wall. In a second outwardly pivoted position, the door with the pivot levers pivoted outwards is located at a distance in front of the area of the door opening and the plane of the vehicle side wall. In a third opened position, the door from the second outwardly pivoted position is pushed away in the guide rails along the vehicle side wall away from the area of the door opening. A sensor (14) with an evaluation circuit is provided for assessing a side impact in the area of the closed door (1). The evaluation circuit is so controlled by a control part in the event of a side impact and activates the pivot drive so that the door (1) adopts the second outwardly pivoted position, in which it is at a distance from the area of the door opening (7). The sensor works with infrared or ultrasound waves (15). USE/ADVANTAGE - A pivot-and-slide door for a motor vehicle with which the safety of an occupant is increased in the event of a side impact.

Description

The invention relates to a pivoting sliding door on a vehicle, ins special a passenger car.

To improve the protection of vehicle occupants when opening impact accidents are a number of safety devices knows. For a front or rear impact are particularly deformable, energy-consuming components provided, whereby reduces the impact energy for a vehicle occupant becomes.

On the other hand, a special security problem poses a problem due to the side walls of the vehicle as a vehicle doors are only a short distance away from the driver's seating positions Connect the occupants and therefore only slight deformation paths for energy-consuming components are available. A colliding vehicle arriving from the side deforms therefore, especially with its front bumper, quickly and strong the side vehicle door of the other vehicle in the Area of a vehicle seat, causing injury sensitive pelvic area of an occupant is at risk.

To make improvements here, it is common knowledge stiffen the side vehicle doors and with upholstery elements. The basic problem that Vehicle side area between the vehicle wall and an In sat only a short distance and thus a small deformation path for energy-consuming components remains  but also obtained with these solutions. Are improvements therefore only possible within the given geometry.

Another generally known safety device at a side impact consists of a pyrotechnic inflation gas cushion (side air start), which is attached via a sensor a side impact between occupants and the side Vehicle door is inflated. Even for such a, since Lich gas cushion has the disadvantage that the distance between side door and occupants is only small, thus the effective gas cushion diameter is only appropriate can be low and therefore the effectiveness against one Gas cushions in the front area, where there is plenty of space, is reduced.

Previously common vehicle doors are on the vertical front edge te swiveled over hinges. The swivel range is often restricted in confined spaces, so that this can hinder getting in and be uncomfortable. To an open vehicle door, especially one Driver door on the side facing the road, a handicap represent. It is therefore also known as vehicle doors Train sliding doors.

A pivoting sliding door on a vehicle, according to the preamble of claim 1, is known from DE 36 30 229 A1.

The object of the invention is a generic sliding sliding door to train so that safety for an occupant a side impact in the door area is increased.

This task is carried out with the characterizing features of the claim 1 solved.

According to claim 1 is a sensor with an evaluation circuit to detect an impending side impact in the area of the closed swivel sliding door attached. The rotary actuator for the swivel lever is through the evaluation circuit and over a Control unit is activated in the event of an impending side impact, that the swivel sliding door has the second, swings out state, in which it is in a Distance in front of the area of the door opening.

This ensures that in the event of a side impact in the area the swivel sliding door a greater distance between the occupant and the sliding sliding door is made, the sliding sliding door like a shield a colliding object, especially another Vehicle that is being driven towards. So there is a side impact a considerably larger one than previous arrangements Deformation path between occupants and vehicle door available. The occupant sits on the one hand from the bulging Swing sliding door further away by swiveling it out and to others may be due to energy-consuming safety components the larger deformation path can be dimensioned more favorably, so that overall security is significantly improved.  

According to claim 2 can be used as sensors to detect an upcoming Side impact (enemy sensors) known per se, contactless working sensors are used, the infrared and / or emit ultrasonic waves, an approximation to a side impact by time-of-flight measurements of reflected waves and their evaluation (time and speed dependent) is determined.

An impending side impact is only within a certain one Distance from the vehicle is clearly recognizable so that it can be seen the time for swinging out the swivel sliding door before the side impact is relatively short. According to claim 3 it is therefore required that the rotary actuator works quickly and in the event of a detected impending side impact, if necessary. is operated pyrotechnically supported.

To the sliding door in the event of a detected, upcoming Side impact, similar to a sign in the pivoted position, To keep stable, it is according to a preferred embodiment according to claim 4 advantageous that with the Swing out at the same time with at least one swivel lever Support device is controlled and swung out. Such support devices are preferred on all pivot levers attached and support them against their swivel direction from. This can be used in the event of a side impact do not simply swing back (without the desired energy consumption). Such a support is particularly then required if a side impact from one direction with a Component takes place in the pivoting direction of the pivot lever.

According to claim 5, the support device is advantageous as Ratchet arrangement designed with a toothed rack on Swivel lever and an associated, at least in the case of a detected, upcoming side impact swing out Support lever.

For a stable hold when swung out, use Claim 6 further proposed that at least one pivot lever,  preferably all, in the swung-out state in the swivel-out direction abut a stop.

In a particularly preferred embodiment according to claim 7 are the pivot levers and / or the support levers as hollow supports built and targeted by attaching beads trained energy-consuming components.

A gas cushion between occupants is advantageous according to claim 8 and pivoting sliding door used because now in the event of a side impact a greater distance between the occupant and the sliding sliding door is available and a gas cushion for good function can be dimensioned with sufficient depth.

Using an exemplary embodiment, the invention with others Details, features and advantages explained in more detail.

The only figure shows a pivoting sliding door in one view on a vehicle in the swung-out state and (dashed) in the closed state in a schematic representation.

A pivoting sliding door 1 is connected to a vehicle side wall 6 via pivoting levers 2 , 3 and guide rails 4 , 5 .

The swivel levers 2 , 3 (of which only two are shown in the plan view according to FIG. 1) are arranged in the manner of a four-bar linkage, one swivel lever end having a vertical axis with the swivel sliding door 1 and the other swivel lever end via a vertical one Axis engages in an associated guide rail 4 , 5 .

In a first, closed state of the pivoting sliding door 1 (shown in broken lines), the pivoting levers 2 , 3 are pivoted in the longitudinal direction of the vehicle and the pivoting sliding door 1 lies in a door opening 7 as part of the vehicle wall 6 .

In a second, swiveled-out state (drawn in with solid lines), the swivel levers 2 , 3 are swiveled out in the transverse direction of the vehicle, so that the swivel-slide door 1 is at a distance 8 corresponding to the swivel lever lengths in front of the door opening 7 or the vehicle wall 6 . The pivoting sliding door 1 was thus moved by the pivoting movement (arrow 9 ) in front of the vehicle wall 6 (arrows 10 , 11 ).

Starting from the second, pivoted-out state of the pivoting sliding door 1 , it can be pushed along the guide rails 4 , 5 into a third, open state (not shown) from the region of the door opening 7 (arrows 12 , 13 ).

The arrangements and operating states of the vehicle door 1 shown so far correspond to a normal opening and closing.

In a further use of the arrangement, the second, swung out state in the manner shown as a safety device used:

Infrared and / or ultrasonic waves 15 are emitted in a contactless manner from a sensor 14 shown schematically in the vehicle door 1 , and are evaluated via reflection and a transit time measurement to determine the approach of an object with the aid of an evaluation circuit (not shown). An impending side impact in the area of the (closed) pivoting sliding door 1 can thus be recognized during driving operation.

In the event of an imminent, recognized side impact, a control part (not shown), fast-working, possibly pyrotechnically supported pivot drive for the pivot levers 2 , 3 is actuated via a control part downstream of the evaluation circuit, which swivels the pivot / slide door 1 from the first, closed state before the side impact extends the second, swung out state. At the same time, a support lever 16 is pivoted out (arrow 17 ), which supports (at least one) pivot lever 3 against pivoting back, so that the pivoting sliding door 1 is held stable in its pivoted-out position. The support device with the support lever 16 is advantageously designed as a ratchet arrangement. The pivot levers 2 , 3 are constructed as hollow beams, with beads 18 , so that the hollow beams are designed in a manner known per se for the targeted absorption of impact energy. At the same time, this bead arrangement can serve as a toothed strip for the ratchet arrangement of the support device.

To secure the pivoting sliding door 1 in the event of a side impact against movement in the pivoting direction, the pivoting levers 2 , 3 are expediently moved (counterclockwise) against a stop (not shown) in the pivoted-out position and, at the same time, the displacement movement in the event of a side impact by a controllable ( bars not shown) prevented. In addition to the pivot levers 2 , 3 , the support levers 16 are also designed as energy-absorbing parts.

Due to the movement of the pivoting sliding door 1 in the event of a detected, impending side impact into the second, pivoted-out position, a deformation path increased by the distance 8 is made available to a subsequent seating area, the pivoting levers 2 , 3 and the support levers 16 being energy-consuming components in addition to the door structure contribute to a reduction in the impact energy. This means that there is also enough space for an inflatable gas cushion (side airbag) to function properly.

Claims (8)

1. pivoting sliding door on a vehicle, in particular for passenger cars, which is connected to a vehicle side wall via pivoting levers which engage on one side on guide rails arranged in the longitudinal direction of the vehicle and, by pivoting by means of a pivoting drive, move the pivoting sliding door in front of the area of the door opening,
that in a first, closed state of the pivoting sliding door, it lies as part of this wall in a door opening of the vehicle side wall when the pivoting levers are pivoted in the longitudinal direction of the vehicle,
that in a second, swiveled-out state of the pivoting sliding door, this is at a distance from the region of the door opening and the plane of the vehicle side wall when the pivoting levers are pivoted out and
that in a third, opened state of the pivoting sliding door, starting from the second, pivoted-out state, it is pushed away in the guide rails along the vehicle side wall from the area of the door opening,
characterized,
that a sensor ( 14 ) with an evaluation circuit for detecting a side impact impending in the area of the closed sliding door ( 1 ) is attached,
that the evaluation circuit controls the pivot drive in the event of an impending side impact in such a way that the pivoting sliding door ( 1 ) assumes the second, pivoted-out state before the side impact, in which it is at a distance from the area of the door opening ( 7 ). 2. Swivel sliding door according to claim 1, characterized in that the sensor ( 14 ) is a known, contactless working sensor which emits infrared and / or ultrasonic waves ( 15 ) and an approach to a side impact by time-of-flight measurements of reflected waves ( 15 ) and their evaluation is determined in the evaluation circuit. 3. pivoting sliding door according to claim 1 or 2, characterized in that the swivel drive quickly to the swiveled out state works and in the event of a detected impending side impact possibly pyrotechnic support. 4. Swivel sliding door according to one of claims 1 to 3, characterized in that a support device (support lever 16 ) at the same time as pivoting into the second state, together with at least one pivot lever ( 2 , 3 ), at least in the event of a detected impending side impact. can be controlled and swung out, which supports the swivel lever ( 2 , 3 ) against its swivel direction. 5. Swivel sliding door according to claim 4, characterized in that the support device is a ratchet arrangement with a toothed bar on the pivot lever ( 3 ) and an associated, pivotable support lever ( 16 ). 6. pivoting sliding door according to one of claims 1 to 5, characterized in that at least one pivot lever ( 2 , 3 ) in the pivoting direction in the second, pivoted state abuts a stop. 7. pivoting sliding door according to one of claims 1 to 6, characterized in that at least one pivot lever ( 2 , 3 ) and / or support lever ( 16 ) is constructed as a hollow support and by attaching beads ( 18 ) in a conventional manner for targeted reception is formed by impact energy. 8. pivoting sliding door according to one of claims 1 to 7, characterized in that in the region of the inside of the closed pivoting sliding door ( 1 ) a known, inflatable via a pyrotechnic charge gas cushion is arranged as a safety component, which in the event of a detected impending side impact the evaluation circuit or the control part can be controlled.