WO2019214822A1

WO2019214822A1 - Securing device and vehicle washing system with a securing device

Info

Publication number: WO2019214822A1
Application number: PCT/EP2018/062127
Authority: WO
Inventors: Heinz-Peter ULRICHSKÖTTER
Original assignee: Alfred Kärcher SE & Co. KG
Priority date: 2018-05-09
Filing date: 2018-05-09
Publication date: 2019-11-14
Also published as: EP3790774A1

Abstract

A securing device for contact-based detection of the relative position of a function device, specifically of a drying device (20), in a vehicle washing system (10) and a vehicle (18) to be dried, wherein the function device can be moved relative to the vehicle (18), specifically the drying device (20) can be pivoted relative to the vehicle (18) about a pivoting axis (38), wherein the securing device (24; 110) comprises a holding part (50) for attachment to the function device, a sensing part (48) which, when there is contact with the vehicle (18), can be transferred from a non-activation state into at least one activation state, a sensor apparatus (52) to which the sensing part (48) is operatively connected and with which the assumption of the at least one activation state can be detected, and a resetting apparatus (54), counter to the effect of which the sensing part (48) can be transferred from the non-activation state into the at least one activation state, and which is designed to keep the sensing part (48) in the non-activation state without application of force by the vehicle (18) during the movement of the function device, in particular during the pivoting of the drying device (20). The invention also relates to a vehicle washing system.

Description

FUSE DEVICE AND VEHICLE WASHING SYSTEM

WITH A FUSE DEVICE

The present invention relates to a safety device for contact-related detection of the relative position of a functional device, especially a drying device, in a vehicle washing system and a vehicle to be dried, the functional device relative to the vehicle movable, especially the drying device relative to the vehicle by a

Swivel axis is pivotable.

Moreover, the present invention relates to a vehicle washing system with a functional device.

In vehicle washing systems, different movable functional devices can be used, for example cleaning units such as body brushes, spraying devices for high-pressure and / or cleaning fluid or drying devices for drying the vehicle after cleaning.

During the drying process, vehicle surfaces are exposed to drying air from at least one nozzle of the drying device. It is known, for example, to move the drying device depending on the contour of the vehicle in order to achieve the best possible drying result. For example, the contour of the vehicle is determined by means of light barriers before the cleaning process. The drying device, in particular a roof-drying device, is raised and lowered as a function of the determined contour, the distance to the vehicle surface being kept substantially constant. Meanwhile, the drying device is moved relative to the vehicle. The movement can be carried out in a gantry washing system by moving a washing portal on which the drying device is held relative to the stationary vehicle. In a car wash, the vehicle can be moved by means of a conveyor relative to the stationary drying device.

For use with such a drying device, a safety device is conventionally used, which is fixed to the drying device and has a feeler part. Upon contact of the probe with the vehicle, for example due to incorrect determination of the contour of the vehicle, a switching element is actuated. Depending on this, for example, a drive device of the conveying device, the washing portal or the drying device can be influenced and, in particular, overridden.

To achieve a better drying result, it is known that the drying device can be designed pivotable about a pivot axis. Such a drying device and a washer having it are described, for example, in WO 2017/220171 A1. The pivoting of the drying device improves the orientation of the drying air flow on vehicle surfaces, in particular in the area of the front, the windscreen, the rear window and the rear of the vehicle. Also, transition areas between vehicle surfaces that are at an angle to each other can be dried better.

Object of the present invention is to provide a safety device and a vehicle washing system with a safety device, with a higher reliability can be achieved.

This object is achieved by a securing device for the contact-related detection of the relative position of a functional device, especially a drying device, in a vehicle washing system and a vehicle to be dried, the functional device being movable relative to the vehicle, especially the drying device relative to the vehicle

Swivel axis is pivotable, wherein the securing device comprises a holding part for fixing to the functional device, a sensing part, which in Kon- a sensor device with which the sensing part is operatively connected and with which the receipt of the at least one actuation state is detectable, and a restoring device, counteracting the effect of the sensing part of non-actuated state in the at least one actuation state can be transferred and which is designed to hold the feeler part in the non-actuated state without force being applied by the vehicle when moving the function device, in particular when pivoting the drying device about the pivot axis.

The securing device according to the invention can be defined via the holding part on the functional device and in particular the drying device. The sensing part is transferred from the non-actuated state to an actuated state as a result of a force applied by the vehicle. The assumption of the at least one actuation state can be detected by means of the sensor device. Depending on a signal of the sensor device, for example, a drive device can be influenced. For cooperating with the sensor device, the securing device, for example the feeler part, has, for example, an actuating section or forms such an actuating section. The feeler part is transferred into the at least one actuation state against the action of the restoring device. The restoring device provides a restoring force in order to ensure that the feeler part is transferred back into the non-actuated state when the force is removed or absent, or when the force is removed. It is particularly advantageous that the restoring device is designed such that the feeler part is held in the non-actuated state during a movement and in particular pivoting of the functional device. The feeler part is prevented, in the absence of the application of force, unintentionally adopting the at least one actuation state. A disturbance due to the erroneously triggering safety device can be avoided in this way. The securing device according to the invention can be used in various movable functional devices of the vehicle washing system, for example in body brushes or spraying devices. The following is particularly, but not by way of limitation, the use in a pivotable drying device. For example, the safety device according to the invention, unlike the conventional safety device used in non-pivoting drying devices, can ensure the operational safety of a pivotable drying device. If the conventional securing device is used with a pivotable drying device, the feeler part deflects itself and can actuate the switching element when there is no contact with the vehicle. A disruption of the drying process is the result. In contrast, the restoring device of the securing device according to the invention makes it possible to retain the feeler part of the securing device according to the invention in the non-actuated state when the drying device is pivoted.

It is favorable when the restoring device is designed to hold the feeler part in the non-actuated state over a pivot angle of the functional device, especially the drying device about the pivot axis, of at least approximately 90 °, preferably at least approximately 180 °, more preferably at least approximately 270 °, more preferably about 360 °. If the drying device can be pivoted, for example, by approximately 90 °, for example, substantially horizontally and substantially vertically aligned vehicle surfaces can be better blown off with drying air. In this case, it is favorable if the feeler part can be held in the non-actuated state by about 90 ° over the restoring device during pivoting. Even more advantageous is a possibility of pivoting the drying device by at least approximately 180 °, for example for improved drying of substantially vertical front and rear surfaces of the vehicle.

When the restoring device is designed, it is advantageous for the feeler part to be operated independently of the orientation of the safety device in the non-actuated manner. condition. This ensures that the sensor device is actuated only when the sensing part is acted upon by the vehicle with an actuating force. Disturbances are largely avoided and increases the reliability of the vehicle washing system. In particular, it is favorable if the feeler part can also be held in the non-actuated state by means of the restoring device independently of the position of the securing device.

It may be provided in a preferred embodiment that the sensing part can be converted by at least partially deformation of Nichtbetätigungs- state in the at least one operating state. The feeler part can be, for example, form-elastic and / or material-elastic. The deformation may be, for example, a compression, elongation or bending.

Alternatively or additionally, it can be provided that the sensing part can be transferred from the non-actuated state into the at least one actuation state by movement relative to the sensor device. For example, the sensing part is at least partially movably mounted, such as displaceable and / or pivotable.

In an advantageous embodiment of the securing device, it can be provided that the restoring device comprises at least one elastically deformable restoring element acting between the holding part and the sensing part. Contrary to a restoring force of the restoring element, the feeler part can be moved relative to the holding part. An actuation section of the probe part or on the probe part, for example, can interact with the sensor device.

In an advantageous embodiment of the securing device, it is favorable if the sensing part comprises or forms the restoring device, or vice versa. In this way, a structurally simple design of the securing device can be achieved. This is also advantageous for their reliable function. Separate components of the security device for the sensing part and the return means are not required in this embodiment. With regard to a compact design and a simple production, the sensing part provides the restoring device, or vice versa.

In particular, in combination with the last-mentioned advantageous embodiment, it is preferably provided that the feeler part is made of an elastically deformable material which is deformed at least in sections by application of force and deforms again when the contact disappears. When deforming due to a force applied by the vehicle, the feeler part can be transferred, in particular, from the non-actuated state into the at least one actuation state.

It is advantageous if the sensing part is at least partially and preferably made entirely of a foam material. By way of example, the feeler part is made of the foam material at least on a side which contacts the vehicle, in order to prevent damage to the vehicle. By the production of foam material, the feeler part with the effects described above can be particularly elastically deformable. Furthermore, the feeler part can be manufactured cost-effectively by manufacturing from foam material.

The foam material is preferably a closed-cell foam material. The closed-cell material may have cells on the surface. Inside the closed-cell material, however, the cells are separated from each other so that liquid can not penetrate the foam material, but can merely wet it on the surface. This prevents the feeler part from becoming saturated with liquid, in particular water, which, for example, could drip from the feeler part onto the vehicle surfaces during a drying process and impair the cleaning result.

It is advantageous if the securing device comprises a damping device with which a restoring force of the return device is damped. By way of the damping effect of the damping device, it can be avoided, for example, that the feeler part is set into vibration during operation of the functional device and the sensor device is inadvertently actuated.

It is advantageous if the restoring device summarizes or forms the damping device, or vice versa. Separate components for the restoring device and the damping device are not required. The structural design of the securing device is thereby simplified.

In a corresponding manner, it is favorable if the sensing part comprises or forms the damping device, or vice versa. Separate components for the probe and the damping device are not required.

In particular, it is advantageous if the sensing part comprises or forms the restoring device and the damping device. The three functions of the probe, the restoring device and the damping device can be combined in one component.

Preferably, the sensing part is formed integrally with the restoring device and / or with the damping device.

In particular, it can be provided that the sensing part is integrally formed. Particularly advantageous here is the one-piece production of the probe of an elastically deformable material, such as a foam material.

It can be provided that the feeler part can be transferred from the non-actuation state into the at least one actuation state by application of force in one actuation plane. The actuation plane is preferably defined by the probe part. For example, a deformation takes place by compression of the probe in the operating plane. Furthermore, it can be provided that, when force is applied in an actuating direction which is aligned at an angle and in particular transversely to the actuation plane, the feeler part can be transferred from the non-actuation state into the at least one actuation state. For example, the force is usually exerted by the vehicle on the probe part in the operating plane. However, with a force directed at an angle to the actuation plane, there is also the possibility that the sensor device is actuated. This is due, for example, to deformation by bending the probe.

The feeler part is preferably configured disk-shaped, wherein the plane of the disk defines, for example, the aforementioned actuation plane.

In an overhead view, in an advantageous embodiment of the securing device, the feeler part may, for example, have a round and at least partially circular or substantially circular contour.

For loading by the vehicle, the sensing part, for example, a touch area.

It is favorable if the feeler part comprises or forms a coherent touch surface for contacting the vehicle. The coherent touch surface ensures that components of the vehicle can be reliably scanned, for example on protruding areas such as attachments.

The touch surface is preferably arranged on an outer edge of the probe. For example, the tactile surface is formed by a lateral surface of the probe part, which, as explained above, may preferably have a disk-shaped design.

In a preferred embodiment of the securing device, it is favorable if the sensing part is at least partially annular (and forming a ring portion) or when the sensing part encompasses or forms an annular region extending over an angular range of at least about 90 °, preferably at least about 180 ° and more preferably about 270 °, more preferably about 360 °, with respect to one of the sensing part defined axis extends. The above-mentioned touch surface is preferably arranged or formed on the ring section or on the ring region. The axis of the probe part can coincide with the pivot axis for the functional device, but this is not necessary. It is conceivable in particular that the pivot axis and the axis of the sensing part are aligned parallel to each other.

It may be provided on the securing device, a central region which is connected to the annular region or with the ring portion via connecting portions.

In a preferred embodiment, return elements of the reset device form the connection areas and the holding part forms the central area. The ring section can be moved counter to the restoring force of the connecting areas relative to the holding part and thereby the feeler part can be transferred from the non-actuating state into the at least one operating state.

The return elements are formed, for example, as bent spring webs between the holding part and the ring portion.

It can be provided that sections of the ring section which are opposite one another with respect to the axis are connected to one another via an actuating section, which is in operative connection with the sensor device. When moving the ring portion as a result of contact with the vehicle and the actuating portion is moved, thereby actuating the sensor device. The provision is made by means of the return elements, such as the spring bars. In an advantageous embodiment of the securing device, it can be provided that the sensing part comprises the central region, which is connected to the annular region in a spoke-like manner via the connection regions.

The holding part preferably engages on an outer edge of the probe.

For example, the holding part is connected to the sensing part by adhesion and / or positive engagement.

It can be provided that the feeler part can be connected without tools to the holding part and released from it. Alternatively, for example, a screw with the holding part is conceivable.

In an advantageous embodiment of the securing device, the contact part is contact-connected with the sensor device in operative connection, with which a movement and / or a deformation of the sensing part tactile is detected.

Alternatively or additionally, it is expediently provided that the feeler part is in contactless contact with the sensor device.

By way of example, the sensor device is or comprises an optical sensor device. The optical sensor device can in particular manage without independently moving parts and thereby has a reliable function.

It can be provided that the optical sensor device comprises or forms a light barrier, wherein the sensing part interrupts a light path of the light barrier in at least one actuation state. By movement and / or deformation of the sensing part of the light path is interrupted, thereby actuating the sensor device. In a preferred embodiment, the sensing part, for example, on a passageway for light, the edge of which blocks the light path in at least one operating state. In the non-actuated state of the sensing part, the light from the light barrier propagates through the channel, which light can be configured, for example, as a fork light barrier. Even a relatively small force exerted on the feeler part in contact with the vehicle is preferably sufficient to move and / or deform the feeler part in such a way that the light path is interrupted by the edge of the passageway.

The holding part preferably has a contact element for the sensor device or forms such. This ensures that the sensor device is positioned in a defined position relative to the holding part. In addition, the sensor device can preferably be fixed to the functional device by means of the holding part.

The object stated at the outset is achieved by a vehicle washing system according to the invention, comprising a functional device and a safety device of the abovementioned type, which is fixed to the functional device. The functional device is, for example, a drying device which comprises at least one nozzle for providing a drying air flow for a vehicle, wherein the drying device is pivotable about a pivot axis for adaptation to a contour of the vehicle.

The advantages that can be achieved by means of the vehicle washing system according to the invention have already been mentioned in connection with the explanation of the safety device according to the invention. In this regard, reference may be made to the above statements.

Advantageous embodiments of the vehicle washing system according to the invention result from advantageous embodiments of the invention Safety device, so that also in this regard can be made to the above explanations.

Conveniently, the vehicle washing system comprises a control device, which can be supplied with a signal from the sensor device when an actuating state is taken up by the sensing part. In the presence of the signal, it is provided in particular that a drive device for effecting a relative movement of the functional device and the vehicle and / or a drive device for pivoting the functional device can be influenced. If the sensor device is actuated, the drying process with a drying device can be interrupted in this way, for example, and as a result the operational safety of the vehicle washing system can be increased.

The following description of preferred embodiments of the invention serves in conjunction with the drawings, the detailed explanation of the invention. Show it :

FIG. 1 shows a schematic side view of a vehicle washing system according to the invention in the form of a gantry washing system, which comprises a functional device in the form of a drying device and a securing device according to the invention, and a vehicle to be dried;

FIG. 2 shows a partial view of a drying device with securing device attached thereto in perspective view;

FIG. 3 shows the securing device according to the invention from FIG. 2 in a perspective view;

FIG. 4 shows a representation corresponding to FIG. 3 in an exploded view;

FIG. 5 shows a side view of the securing device in contact with an object, for example a vehicle part; Figure 6: an enlarged view of detail A in Figure 3, wherein a

Tastteil the securing device assumes a non-actuated state;

Figure 7: a representation corresponding to Figure 6, wherein the sensing part a

Assumes operating state;

Figure 8: a side view of the securing device of Figure 3 at

Force application from the side;

FIG. 9: a representation corresponding to FIG. 8 when force is applied from the opposite side;

Figures 10

to 13: schematic partial representations of the drying device from FIG. 2 at different positions of the vehicle, the drying device and the securing device being pivoted in the illustration according to FIGS. 12 and 13 relative to the illustrations of FIGS. 10 and 11 relative to the vehicle ; and

FIG. 14 shows a side view of a securing device according to the invention.

1 shows a schematic side view of an occupied with the reference numeral 10 advantageous embodiment of a vehicle wash according to the invention. The vehicle washing system 10 is designed as a gantry washing system, which has a schematically illustrated washing portal 12, on which body brushes 14 are arranged, in the present case side brushes and a roof brush. The washing portal 12 is moved along a machining direction 16 relative to a vehicle 18 to be cleaned. In another advantageous embodiment, it can be provided that the vehicle washing system according to the invention is a washing line in which the vehicle 18 is moved by means of a conveying device.

The vehicle washing system 10 includes a movable functional device. In the present case, this is a drying device 20 in order to dry vehicle surfaces after cleaning. The dryer 20 is configured as a "roof dryer" to dry overhead vehicle surfaces, i. in particular the roof, but also the hood, the windscreen, the rear window, the tailgate or the boot lid. In the present case, the drying device 20 is in particular pivotable, whereby the vehicle front and the rear of the vehicle can be dried. This will be discussed below.

To increase operational safety, the vehicle washing system 10 comprises an advantageous embodiment of a securing device according to the invention, which is designated by the reference numeral 24. The safety device 24 is not shown in FIG. 1 for the sake of clarity, reference is made to FIGS. 2 to 13.

The securing device 24 can be used in a functional device of the vehicle washing system 10, for example a body brush, a spraying device or, as in this case, the drying device 30.

For holding the drying device 20, the vehicle washing system 10 comprises a carrying device 26 which, for example, comprises a vertically oriented carrier. The drying device 20 is held adjustable in height on the carrying device 26. For this purpose, the vehicle washing system 10 comprises a lifting device 28. The lifting device 28 can be activated by a control device 30 of the vehicle washing system 10. Before cleaning the vehicle 18, the contour of the vehicle 18 is at least approximately determined via a detection device 32 coupled to the control device 30. For example, the detection device 32 is designed as an optical detection device and comprises at least one light barrier.

To dry the vehicle 18, the lifting device 28 is actuated by the control device 30 as a function of the determined contour of the vehicle 18 in order to raise and lower the drying device 20 when the washing portal 12 is moved relative to the vehicle 18 in the machining direction 16. To move the washing portal 12, a drive device 34 that can be activated by the control device 30 is provided. In this way it is ensured that the drying device 20 always has an appropriate distance from the vehicle surfaces, in order to achieve the best possible drying result and not to damage the vehicle as a result of a collision.

As already mentioned, the drying device 20 can be pivoted in the present case. For pivoting a pivoting device 36 is provided which can be controlled by the control device 30. By means of the pivoting device 36, the drying device 20 can be pivoted about a pivot axis 38. The pivot axis 38 is aligned transversely and in particular perpendicular to the machining direction 16 and preferably parallel to a footprint 40 for the vehicle 18. In particular, the pivot axis 38 is oriented horizontally.

By means of the pivoting device 36, the drying device 20 can preferably be pivoted about the pivot axis 38 by at least approximately 180 °. As a result, drying air that emerges from drying nozzles 42 of the drying device 20 is specifically aligned at an angle on the vehicle surfaces. For example, in a basic position of the drying device 20, drying air emerges directed onto the placement surface 40, ie approximately vertically downwards. To dry the front of the vehicle can Drying device 20 are pivoted, for example by at least about 90 ° (in Figure 1 about the pivot axis 38 in the counterclockwise direction). For drying the rear of the vehicle, the drying device 20 can be pivoted, for example, by approximately 90 ° in the reverse direction, ie in the clockwise direction in FIG.

The pivoting device 36 can be activated by the control device 30 in order to pivot the drying device 20 in particular as a function of the previously determined contour of the vehicle 18.

In the present case, the drying device 20 comprises two nozzle carrier lei 44, which are pivotable relative to each other. A respective pivot axis is, for example, oriented transversely and in particular perpendicular to the pivot axis 38. At each nozzle support member 44 at least one drying nozzle 42 is held. For pressurizing the drying nozzles 42, the drying device 20 comprises at least one blower device 46.

FIG. 2 schematically shows the drying device 20 in a partial view with the nozzle carrier parts 44 arranged relative to one another in a pivoting position.

Examples of embodiments of drying devices with nozzle support parts which can be pivoted relative to one another and the advantages which can be achieved in this way are described in WO 2017/220171 A1, to which reference is made in the present case as the technological background. For the present invention it is not essential that the drying device has nozzle support parts that are pivotable relative to each other.

However, the securing device 24 according to the invention is used in particular in a vehicle washing system in which the drying device is pivotable relative to the vehicle in order to improve the alignment of the drying air on inclined and angularly adjacent vehicle surfaces, in particular the vehicle rear and vehicle front. It can do this It may be provided that the drying device used has only one drying nozzle, for example a slot nozzle extending transversely across the vehicle, or that a plurality of drying nozzles is provided.

Furthermore, it can be provided in the context of the present invention that the drying device of the vehicle washing system according to the invention, in contrast to the embodiment described here, is a side drying device with which lateral vehicle surfaces can be dried.

As already mentioned, the vehicle washing system 10 comprises the securing device 24 in order to increase operational safety. The relative position of the drying device 20 and of the vehicle 18 can be detected by the securing device 24 in contact with the contact. In particular, it can be deduced from this that this relative position per se is undesirable and the drying device 20 is so relative to the vehicle 18 that there is a malfunction, in particular a disturbance of the drying process.

Since normally the contour of the vehicle 18 is detected before cleaning, the relative position of the drying device 20 to the vehicle 18 can be adjusted by means of the lifting device 28, the drive device 34 and the pivoting device 36. The adjustment is made such that the drying device 20 always has a distance from vehicle surfaces. Nevertheless, it could occur that a collision of the drying device 20 with the vehicle 18 is imminent, for example if the contour of the vehicle 18 is incorrectly detected, if the lifting device 28, the drive device 34 or the pivoting device 36 malfunctions, or at Car washes - when a driver brakes undesirably.

The securing device 24 comprises, for sensing the vehicle 18, a feeler part 48, furthermore a holding part 50, a sensor device 52, a reset device. Device 54 and preferably a damping device 56. For fixing the securing device 24 to the drying device 20, the holding part 50 is provided. FIG. 2 shows, by way of example, the fixing of the securing device 24 on one of the nozzle support parts 44. The type of fixing can be different in different ways, for example by force and / or positive locking, latching, jamming, gluing or by one-piece design with components of the drying device 20th

Conveniently, the securing device 24 is arranged centrally or substantially centrally in the transverse direction of the vehicle washing system 10, such that when the vehicle 18 is correctly positioned by the securing device 24, approximately the center of the vehicle can be contacted. FIG. 2 shows this by way of example by arranging the securing device 24 at the end on a nozzle carrier part 44 and thus between the two nozzle carrier parts 44.

In the present case, the feeler part 48 is disc-shaped and in plan view it is round and essentially of circular contour. The disk 58 of the sensing part 48 comprises an annular region 60. The annular region 60 extends in the circumference of an axis 62 defined by the sensing part 48. Over an angular range of approximately 30 ° to 40 ° with respect to the axis 62, the annular region 60 is interrupted and has there opposite sections 64 on each other. With respect to the axis 62, the sections 64 are radially displaced slightly inwards.

The holding part 50 engages on the outer edge of the sensing part 48, in the present case on the sections 64. For this purpose, a screw connection of the holding part 50 to the sensing part 48 is provided in the present case, but the type of fastening could also be different. For example, a connection by force and / or positive connection, locking and / or jamming is used.

In the present case, the holding part 50 is designed rigidly and forms a connecting web 66. The web 66 bears laterally against the sections 64 and is connected to these by screwing in each case. 64 a double screw is provided. Essentially in the middle between the sections 64, an example V-shaped recess 68 is formed on the connecting web 66.

The holding part 50 further comprises a contact element 70 for the sensor device 52. The contact element 70 protrudes from the connecting web 66 and is present at the side next to one of the sections 64.

The annular region 60 forms a scanning region at the outer edge 72 of the sensing part 48. The touch area is in particular a contiguous touch surface 74. The touch surface 74 extends along the annular region 60 in the circumferential direction of the axis 62. In the extension direction, the touch surface 74 covers an angular range of approximately 270 ° with respect to the axis 62.

In this way, with the feeler part 48, a force applied to the touch surface 74 can be detected over substantially 270 °. In FIG. 5, this is illustrated schematically by radially oriented arrows 76.

The sensing part 48 comprises a central region 78, through which the axis 62 passes. The central region 78 is connected to the annular region 60 via connecting regions 80. In the present case three connection regions 80 are provided, wherein two adjacent regions each enclose an angle of substantially 90 °. The connecting regions 80 connect the central region 78 in the manner of a spoke and are aligned in the radial direction with respect to the axis 62.

The sensing part 48 comprises an actuating portion 82 for cooperation with the sensor device 52. The actuating portion 82 is in the present case, for example, radially from the central portion 78 extending portion of the sensing part 48, which extends into the gap 84 between the sections 64. For example, the actuating portion 82 is aligned in extension of one of the connecting portions 80. At the end, the actuating portion 82 comprises a passageway 86 with an opening 88 and an edge 90 enclosing it. The passageway 86 is aligned parallel to the axis 62, transversely and in particular perpendicular to the plane defined by the disc 58.

The passageway 86 is positioned so that it is arranged in plan view of the securing device 24 in the region of the recess 68 of the holding part 50.

In the present case, the sensor device 52 is an optical sensor device, which in particular comprises a light barrier 92. For the abutment on the contact element 70, a base body 94 is provided, which is connected to the holding part 50 in a non-positive and / or form-fitting manner, for example.

The light barrier 92 is a forked light barrier with legs 96 spaced apart from the base body 94. The legs 96 are spaced so far apart that they are positioned laterally adjacent to the passageway 86 and adjacent the recess 68 (FIGS. 3 and 6).

A light beam 98 of the light barrier 92 extends between the legs 96 and through the opening 88, in the absence of an actuating force of the vehicle 18 on the sensing part 48. When applied to the light beam 98 is interrupted by the edge 90 and the sensor device 52 is actuated. This will be discussed below.

A signal of the sensor device 52 can be supplied to the control device 30. Depending on the signal, as mentioned, for example, the lifting device 28, the drive device 34 and / or the pivoting device 36 can be influenced and, in particular, deactivated.

The sensing part 48 is made of an elastically deformable material, so that the sensor device 52 can be actuated via the actuating section 42 by deformation of the sensing part 48. The elastically deformable terial is a foam material, preferably a closed-cell foam material. In this way, the feeler 48 may be superficially wetted with cleaning liquid of the vehicle washing system 10, but it does not suck itself fully. As a result, it can be largely avoided that drops detach from the feeler part 48 during the drying process and influence the cleaning result.

In the normal drying process, the sensing part 48 does not contact the vehicle surfaces, but is arranged at a distance therefrom. The sensing part 48 assumes a non-operating state in which it is undeformed. This is shown in Figures 2, 3, 6 and 10 to 13, wherein the sensing part 48, although the vehicle 18 in Figures 10 to 13 contacted, but is not acted upon with a force.

Due to the fact that the feeler part 48 is undeformed in the non-actuated state, the light beam 98 passes through the opening 88 (FIG. 6). It can be provided that the sensor device 52 of the control device 30 in this case provides no signal or alternatively a signal that there is no fault or the sensing part 48 assumes the non-actuated state or the sensor device 52 is not actuated.

If the feeler part 48 strikes the vehicle 18, a sufficient application of force to the feeler part 48 leads to its deformation. The force acting on the feeler part 48 acts in particular radially in the direction of the axis 62 on the touch surface 74. Fi gur 5 shows an exemplary application of force, wherein the force vector 100, which is exerted by an object 102 on the feeler 48, is shown larger than the arrows 76.

As a result of the application of force, the feeler part deforms 48, wherein the holding part 50 receives the counterforce. In the example of FIG. 5, the feeler part 48 is compressed. The force acting on the annular region 60 is transmitted via the connecting regions 80 to the central region 78 and from there to the actuating section 82. As a result, the actuation movement moves. cut 82 relative to the light barrier 92. The sensing part 48 assumes an actuation state.

In the operating state, the edge 90 blocks the light beam 98, so that the light barrier 92 is interrupted (Figures 5 and 7). The sensor device 52 provides the control device 30 with a signal in this regard.

Due to the fact that the touch surface 74 extends over a large angular range of approximately 270 °, forces from various directions can be absorbed by the feeler part 48, which transfer the feeler part 48 from the non-actuation state into the actuation state. This increases the operational safety of the vehicle washing system 10. For example, by means of the detection device 32 unrecognizable attachment parts of the vehicle 18 can be detected in a tentative manner, the presence of which is not expected and lead to the actuation of the securing device 24.

Moreover, the feeler part 48 is designed to be transferred from the non-actuation state to the actuation state by a force applied to the side surfaces of the disc 58. This leads to a tilting and / or bending of the sensing part 48. FIGS. 8 and 9 show, for example, a force application parallel to the axis 62, symbolized by arrows 104 and 106, respectively, of opposite sides of the disc 58. Such application of force is achieved As a result, the edge 90 tilted relative to the light beam 98. Even with an axial or paraxial force application of the sensing part 48, the sensor device 52 is thus actuated.

Such a configuration is particularly advantageous if the sensor device 24 is arranged, for example, on nozzle support parts 44 which can be pivoted relative to one another. In a pivoting position of the nozzle carrier parts 44 (FIG. 2), the plane defined by the disk 58 assumes an angular position relative to a vehicle center plane. The probability that the tactile Part 48 contacted an object with the top or bottom of the disc 58 is thereby increased.

Overall, the sensor device 24 thus has the possibility of transferring the feeler part 48 from the non-actuated state into an actuated state by application of force in an actuation plane defined by the plane of the disc 58 and in a transversely and in particular perpendicularly aligned actuation direction.

The aforementioned restoring device 54 is provided in the securing device 24 in order to transfer the sensing part 48 again from the actuation state into the non-actuated state. It is particularly advantageous that the restoring device 54 in the present case is formed by the feeler part 48 itself. Due to the possibility of elastic deformation, the feeler 48 again assumes the non-actuated state when the application of force ceases, the restoring force being based on the elasticity of the material. A separate restoring device 54 can be dispensed with, so that in the present case a cost-effective production of the securing device 24 which is simple in terms of manufacturing technology is possible.

The damping device 56 makes it possible to dampen the restoring force exerted by the restoring device 54. This is favorable in order to avoid oscillation of the sensing part 48, for example as a result of a movement of the drying device 20. This ensures that the sensing part 48 is returned to the non-actuated state, the passageway 86 returns to its original position, does not oscillate and thus does not oscillate. ne unwanted repeated interruptions of the light beam 98 occur.

In the present case, the damping device 56 is also formed by the sensing part 48 and its nature of an elastically deformable material. In particular, the feeler part 48 is formed in one piece and especially in one piece with the return device 54 and the damping device 56. It is particularly advantageous in the securing device 24 that the reset device 54, which is provided by the sensing part 48, is formed, the feeler 48 when pivoting the drying device 20 to the

Swivel axle 38 without force applied by the vehicle 18 to hold in the non-operating state. As a result, the feeler 48 is retained in the non-actuated state when it is not acted upon by contact with the vehicle 18 with a force. An erroneous operation of the sensor device 52 and thus a disturbance of the sensor device 24, associated with a disturbance of the drying process, is thereby avoided when the drying device 20 is pivoted.

The restoring device 54 is such that when the drying device 20 is pivoted about the pivot axis 38 at least over the pivoting angle of at least approximately 180 °, the sensing part 48 is held in the non-actuated state.

It is particularly advantageous that the resetting device 54 in the present case is designed to hold and retain the sensing part 48 in the non-actuated state, irrespective of the orientation and position of the securing device 24, ie. preferably independent of the pivoting position of the drying device 20 about the pivot axis 38, of the pivotal position of the securing device 24 holding nozzle support member 44 and / or the lifting position of the drying device 20th

FIGS. 10 to 13 illustrate the advantage that can be achieved with the restoring device 54, wherein an arrow 108 identifies the direction of gravity in each case.

In FIGS. 10 and 11, the drying device 20 is used to blow off a transition region from the windshield to the engine hood (FIG. 10) or the engine hood (FIG. 11). The securing device 24 is inoperative, but the sensing part 48 can, as shown by way of example, block the driving Contact 18, but it is not acted upon by this force, so that the sensing part 48 still assumes the non-actuated state. The outflow direction of drying air from the drying nozzles 42 is aligned in the direction of gravity 108.

To blow off the front of the vehicle, the drying device 20 is pivoted. FIG. 12 shows a pivoting position in which the outflow direction of the drying air with the direction of gravity 108 assumes an angle of approximately 60 °. In the illustration according to FIG. 13, the drying device 20 is pivoted so far that the angle is approximately 90 °. In both cases, the restoring device 54 holds the sensing member 48 in the non-actuated state without application of force by the vehicle 18, so that erroneous operation of the sensor device 52 is avoided. Even with a contact with the vehicle surface is no operation. Only when force is applied to the sensing part 48 is this, as explained above, converted by deformation against the restoring force of the restoring device 54 into the actuation state.

Corresponding to the illustrations according to FIGS. 12 and 13, the blowing off of the rear of the vehicle is the result. In this case, the drying device 20 is pivoted in the opposite direction about the pivot axis 38. Again, the reset device 54 keeps the sensing part 48 in the non-actuated state, if no force is exerted on the vehicle.

FIG. 14 shows a side view of an advantageous embodiment of a securing device 24 according to the invention, designated by the reference numeral 110. The securing device 110 is used, for example, in the vehicle washing system 10 instead of the securing device 24. For identical or equivalent features and components identical reference numerals are used. The advantages mentioned in connection with the explanation of the securing device 24 can also be achieved in the case of the securing device 110. In the securing device 110, a ring section 112 is provided, which corresponds in its function to the annular region 60. The ring portion 112 extends in the present case over an angular range of approximately 250 ° with respect to the axis 62, which is defined by the central region 78. Opposing end sections of the ring section 112 are connected to one another via an actuating section 116. The actuation section 116 interacts with the sensor device 52 in contact with one another. For this purpose, for example, a switching element of the sensor device 52 is provided (not shown).

The central region 78 forms the holding part 50. The securing device 110 can be fixed to the drying device 20 via the holding part 50.

The central region 78 is connected to the annular section 112 via the connection regions 80. In the present case, the connecting regions 80 are formed by return elements 118 of the return device 54. The return elements 118 are designed as spring webs 120, which are preferably curved.

Overall, the securing device 110 has a substantially planar shape, in which the annular section 112, the spring webs 120, the central region 78 and the actuating section 116 are arranged in one plane.

If a force acts on the ring section 112, the ring section 112 is moved relative to the retaining part 50 in opposition to the restoring force of the restoring elements 118. This leads to a movement of the operating portion 116, and the switching element of the sensor device 52 is actuated. In this way, the sensing part 48 is transferred from the non-actuated state into the actuated state. A return to the non-actuated state takes place under the restoring force of the return elements 118 when the application of force to the ring section 112 is dispensed with.

In the case of the securing device 110, too, the restoring device 54 is suitable for holding the feeler part 48, in particular its ring section 112, in the non-actuated state without force being applied by the vehicle 18, in particular independently of the position and orientation of the securing device 110.

LIST OF REFERENCE NUMBERS

10 Vehicle washing system 12 Washing portal

14 Body brush 16 Machining direction 18 Vehicle

20 drying device 24 securing device 26 carrying device 28 lifting device 30 control device 32 detecting device 34 driving device 36 pivoting device 38 pivoting axis

40 footprint

42 Drying nozzle 44 Nozzle carrier part

46 Blower device 48 Tastteil

50 holding part

52 Sensor device 54 Reset device 56 Damping device 58 Washer

60 ring area

62 axis

64 section

66 Connecting bar 68 recess

70 contact element 72 outer edge touch surface

arrow

Central area

Connection area Operating section Interspace

Through-hole opening

edge

photocell

body

leg

beam of light

force vector

object

arrow

Direction of gravity safety device Ring section

Operating section Return element Spring bar

Claims

1. Securing device for contact-based detection of the relative position of a functional device, especially a drying device (20), in a vehicle washing system (10) and a vehicle (18) to be dried, wherein the functional device is movable relative to the vehicle (18), especially the Drying device (20) relative to the vehicle (18) about a pivot axis (38) is pivotable, wherein the securing device (24, 110) comprises a holding part (50) for fixing to the functional device, a sensing part (48) upon contact with the vehicle (18) from a non-actuation state into at least one actuation state, a sensor device (52) with which the feeler part (48) is operatively connected and with which the receipt of the at least one actuation state is detectable, and a reset device (54), against the action of which the feeler part (48) transfers from the non-actuation state into the at least one actuation state can be felt and that is designed to hold the feeler part (48) without force applied by the vehicle (18) when moving the Funktionsvorrich-, in particular when pivoting the drying device (20) about the pivot axis (38) in the non-actuated state.

2. Safety device according to claim 1, characterized in that the restoring device (54) is formed, the sensing part (48) in the non-operating state via a pivot angle of the functional device, especially the drying device (20) about the pivot axis (38), of at least approximately 90 °, preferably at least about 180 °, more preferably at least about 270 °, more preferably about 360 °.

3. Safety device according to claim 1 or 2, characterized in that the restoring device (54) is formed, the sensing part (48) un- depending on the orientation of the securing device (24, 110) to keep in the non-actuated state.

4. Safety device according to one of the preceding claims,

characterized in that the tactile part (48) can be converted from the non-actuated state into the at least one actuation state by at least a portion-wise deformation.

5. Safety device according to one of the preceding claims,

characterized in that the sensing part (48) by movement relative to the sensor device (52) from the non-actuated state in the at least one operating state can be transferred.

6. Safety device according to one of the preceding claims,

characterized in that the restoring device (54) comprises at least one elastically deformable return element (118) acting between the holding part (50) and the feeler part (48).

7. Safety device according to one of the preceding claims,

characterized in that the sensing part (48) comprises or forms the resetting device (54), or vice versa.

8. Safety device according to one of the preceding claims,

characterized in that the feeler part (48) is made of an elastically deformable material, which is deformed by applying force at least in sections, and deforms again upon removal of the contact tes.

9. Safety device according to one of the preceding claims,

characterized in that the sensing part (48) is at least partially and preferably made entirely of a foam material.

10. Safety device according to claim 9, characterized in that the foam material is a closed-cell foam material.

11. Safety device according to one of the preceding claims,

characterized in that the securing device (24, 110) comprises a damping device (56) with which a restoring force of the restoring device (54) is damped.

12. Safety device according to claim 11, characterized in that the restoring device (54) comprises or forms the damping device (56), or vice versa.

13. Safety device according to claim 11 or 11, characterized marked, that the sensing part (48) comprises the damping device (56) or forms, or vice versa.

14. Safety device according to one of the preceding claims,

characterized in that the feeler part (48) is integrally formed with the restoring device (54) and / or with the damping device (56).

15. Safety device according to one of the preceding claims,

characterized in that the feeler part (48) is integrally formed.

16. Safety device according to one of the preceding claims,

characterized in that the feeler part (48) can be transferred from the non-actuation state into the at least one actuation state by application of force in an actuation plane preferably defined by the feeler part (48).

17. Securing device according to claim 16, characterized in that the sensing part (48) upon application of force in an actuating direction, which is aligned at an angle and in particular transversely to the actuation plane, can be converted from the non-actuation state into the at least one actuation state.

18. Safety device according to one of the preceding claims,

characterized in that the feeler part (48) is disc-shaped.

19. Safety device according to one of the preceding claims,

characterized in that the feeler part (48) comprises or forms a coherent touch surface (74) for contacting the vehicle (18), in particular that the touch surface (74) is arranged on an outer edge (72) of the feeler part (48).

20. Safety device according to one of the preceding claims,

characterized in that the sensing part (48) is at least partially annular (112) or comprises or forms an annular region (60) extending over an angular range of at least about 90 °, preferably at least about 180 ° and even more preferably approximately 270 °, more preferably approximately 360 °, with respect to an axis defined by the sensing part (48) axis (62).

21. Safety device according to claim 20, characterized in that a central region (78) is provided which is connected to the annular region (60) or the annular portion (112) via connecting regions (80).

22. Securing device according to claim 21, characterized in that restoring elements (118) of the restoring device (54) form the connection areas (80) and the holding part (50) forms the central area (78).

23. Securing device according to claim 22, characterized in that the return elements (118) are formed as bent spring webs (120) between the holding part (50) and the ring portion (112).

24. Securing device according to claim 22 or 23, characterized in that opposite to each other with respect to the axis (62) sections of the ring portion (112) via an actuating portion (116) are connected to the sensor means (52) in operative connection stands.

25. Securing device according to claim 21, characterized in that the sensing part (48) comprises the central region (78), which is connected via the connecting regions (80) like a spoke to the annular region (60).

26. Safety device according to one of the preceding claims,

characterized in that the holding part (50) on an outer edge (72) of the sensing part (48) engages and is preferably connected thereto by adhesion and / or positive engagement.

27. Securing device according to one of the preceding claims,

characterized in that the tactile part (48) is contact-connected with the sensor device (52) in operative connection, with which a movement and / or deformation of the sensing part (48) is tactually detected.

28. Securing device according to one of the preceding claims,

characterized in that the feeler part (48) is contactlessly in operative connection with the sensor device (52).

29. Securing device according to claim 28, characterized in that the sensor device (52) is or comprises an optical sensor device (52).

30. Securing device according to claim 29, characterized in that the optical sensor device (52) comprises a light barrier (92) o- forms and that the sensing part (48) interrupts a light path of the light barrier (92) in at least one operating state, wherein the sensing part (48) preferably has a through-channel (86) for light, whose edge (90) blocks the light path in at least one operating state.

31. A vehicle washing system, comprising a movable functional device, as well as a securing device (24, 110) according to one of the preceding claims, which is fixed to the functional device.

32. Vehicle wash according to claim 31, characterized in that the functional device is a drying device (20), the at least one nozzle (42) for providing a drying air flow for a vehicle (18), wherein the drying device (20) for adaptation to a contour of the vehicle (18) about a pivot axis (38) is pivotable.

33. A vehicle washing system according to claim 31 or 32, characterized in that the vehicle washing system (10) comprises a control device (30) to which a signal can be fed from the sensor device (52) when the actuating element is engaged by the sensing part (48), and that a drive device (28, 34) for effecting a relative movement of the functional device and of the vehicle (18) and / or a drive device (36) for pivoting the functional device in the presence of the signal can be influenced.