EP2203376A1

EP2203376A1 - Device, particularly for safety braking of vehicles on rails

Info

Publication number: EP2203376A1
Application number: EP08838957A
Authority: EP
Inventors: Jörg Kühne
Original assignee: Maha Maschinenbau Haldenwang GmbH and Co KG; Maha GmbH and Co KG
Current assignee: Maha Maschinenbau Haldenwang GmbH and Co KG; Maha GmbH and Co KG
Priority date: 2007-10-19
Filing date: 2008-10-15
Publication date: 2010-07-07
Also published as: RU2494034C2; US8087361B2; DE102007050147A1; WO2009049606A1; US20100319566A1; RU2010119930A

Abstract

The invention relates to a device, particularly for safety braking of vehicles on rails having at least one flap unit (1) connected in a rotatable fashion to a rail, wherein the flap unit (1) may be moved into a locking position and a release position by rotation about a rotational axis (D), wherein, in a locking position, the balance point SPK of the flap unit (1) is located above a horizontal plane (E) in which the rotational axis (D) is located.

Description

DEVICE, ESPECIALLY FOR SAFETY CONTROL OF VEHICLES OF RAILS

The present invention relates to a device, in particular for the roll-off protection of vehicles against the rolling of a running rail, with which an automatic transfer of the device can be realized in a safety position.

Driving rails are known from the prior art, which are used on lifting platforms with which vehicles, such as passenger cars, are brought into a raised position in order to be able to carry out maintenance and repair work on the vehicles. The raised vehicles are secured against rolling by the vehicle-mounted handbrake is tightened. In this type of protection, however, the human factor plays a mistake-prone and not negligible role, so that when the handbrake is forgotten, the vehicle can be set in motion, for example, due to repair work, center of gravity displacement or the inclination of the rail Rolling the vehicle consists of the running rail. As a consequence of this, considerable damage to the vehicle or to the running rail as well as to human injuries is possible.

The known from practice devices that are located in the up and Abfahrbereichen of rails, have a scissors mechanism that allows an extension of the fuse when the rail of the lift is in a raised state. In a deflated condition, the fuse is retracted to allow unobstructed loading and unloading from the rail. However, such safety devices Part on that due to external influences such as pollution, rust or abrasion, the kinematics of the scissor mechanism is impaired and thus the extension and retraction of the roll-stop is no longer possible.

Alternatively, lifting platforms are known in the art, are mounted on the rails ramps. These ramps are rotatably mounted and have a long Auffahrbereich as an extension of the rail to compensate for differences in height between a rail and a floor surface and a short portion that overlaps with the rail. After a vehicle is driven onto the running rail, the lift is raised, wherein the ramps tilt such that the shorter, the rail overlap areas of the ramps and thus form a Abrollhindernis for the vehicle. Such safety devices, however, have the disadvantage that the long overhangs of the ramps in the raised state hang freely in the workshop space and pose a significant risk of injury to the workforce due to their length and their often sharp-edged design.

In contrast, the invention has the object, so far as to form a device of the type described above, that an automatic roll-off is provided, while reducing the risk of injury of workers and ensuring retrofitting to a variety of different rails.

This object is achieved by a device having the features of the independent claim. Advantageous embodiments and preferred embodiments of the invention are specified in the subclaims.

To solve this problem, the invention teaches that the device may comprise at least one flap unit, which may be rotatably connected to a running rail, wherein the flap unit in a securing position and / or in a Entsicherungsstellung by rotation about an axis of rotation can be transferred, wherein the device may be characterized in that in a securing position, the center of gravity of the flap unit can lie above a horizontal plane in which the axis of rotation can be arranged.

Furthermore, an additional element may be provided, which may be so in communication with the flap unit, which may lie in a securing position, the focus of the totality of flap unit and additional element below the horizontal plane in which the axis of rotation can be arranged.

This can be ensured in a particularly simple manner that the flap unit of the device is automatically transferred by the action of gravity into a securing position. Furthermore, there are advantages that is dispensed with additional drives, such as servomotors, hydraulic cylinders or the like, and thus the number of components of the overall device is reduced.

Furthermore, the device may comprise a rotational movement generating means.

Furthermore, the rotational movement generating means may be a force member that can communicate with the flap unit such that a torque about the axis of rotation can be generated, so that in a securing position, the center of gravity of the flap unit can lie above a horizontal plane in which the axis of rotation can be arranged. The force element may be a tension spring, compression spring, a hydraulic cylinder and / or a pneumatic cylinder.

As a result, there are advantages in that the locking effect of the device is increased by the rotational movement generating means and a substantial improvement of the fuse is generated. Another advantage is that regardless of the position of the center of gravity of the flap unit and thus independent of the weight force, the device can be moved into a securing position.

Furthermore, at least one stop element can be provided on the flap unit, the connecting element and / or the carrier of the device.

In this way, the predetermined positions of the flap unit in the securing position and the releasing position can be determined in a particularly simple manner by the stop element coming into contact, for example, with the running rail and / or with the flap unit, depending on the installation location.

Furthermore, the flap unit of the device can communicate with at least one support and guide element. In this case, the support and guide element made of plastic. Furthermore, the support and guide element may be formed as a wheel or as a roller and rotatably mounted on the device.

This offers the advantage that when the device is transferred from the securing position to the armed position, Contacting a floor surface, for example a workshop, the contact is first made via the support and guide element, whereby abrasions on the workshop floor and on the flap unit are prevented. Further advantages result from the interchangeability of the support and guide element when reaching a wear limit, as this extends the life of the flap unit.

Furthermore, the flap unit can be connected to the running rail in such a way that the rotation axis can subdivide the flap unit into a short partial area and a long partial area and / or the support and guide element and / or the additional element can be arranged on the short partial area.

This can be ensured that the risk of injury to a worker or operator of the safety device is minimal by short overhangs.

Furthermore, the additional element may be made of a material of high density such as steel, lead or concrete, be arranged on the flap unit and / or within a carrier, wherein the carrier may be in communication with the flap unit.

This results on the one hand the advantage that a high weight can be achieved by the high density of the material and thereby the Aufklappwirkung is improved and the extension of the flap unit is accelerated. On the other hand there is the advantage that the additional element can be arranged to save space in or on the carrier. Furthermore, the flap unit from a. Grid sheet, one. Perforated plate and / or a plate may be formed, wherein the flap unit may consist of organic material, inorganic material and / or plastic.

Furthermore, the device may be characterized in that it can be retrofitted to existing rails.

In summary, the advantages of the invention will be listed below. By selecting the position of the center of gravity SPG an automatic extension of the device can be realized in a particularly simple manner, without the need for an additional drive is necessary. The simple structure with the help of a single rotational degree of freedom can be dispensed with the use of a complex kinematics, whereby malfunction due to failures of this kinematics are prevented. Due to short overhangs, space requirements can be minimized, while at the same time reducing the risk of injury to the workforce. Due to the simple installation can be retrofitted to a variety of different existing rails, or driving platforms for a variety of applications are guaranteed.

In the following the invention will be explained in more detail with reference to exemplary embodiments illustrative drawings. In a schematic and non-limiting representation:

1 is a perspective view of the securing device,

2A is a side view of the securing device in a securing position, 2B is a side view of the device in a Entsicherungs- position,

3A is a perspective view of the securing device,

3B is another perspective view of the securing device with alternatively arranged stop elements,

Fig. 4 is a perspective sectional view of the securing device, and

Fig. 5 is a perspective view of a lift with at the

Rails arranged security devices.

The illustrated in the Fig. 1 embodiment of the device for Roll-off of vehicles from a running rail has a flap unit 1, in the form of a plate.

In one embodiment, not shown, the flap unit 1 may also be designed in the form of a grid.

In the exemplary embodiment illustrated in FIG. 1, support and guide elements 2 are mounted in the longitudinal edge regions of the flap unit 1. In this case, the disc-shaped bearing and guide elements 2 are fastened eccentrically with fastening elements or by welding or gluing to the flap unit 1, wherein at least a portion of a circular surface of the support and guide element 2 is in contact with a first surface 13 of the flap unit 1. The flap unit 1 has a second surface 14, cf. Fig. 3A / 3B which is parallel to the first surface 13. With this second surface 14 is the flap unit 1 with a Carrier 7 in contact, wherein the flap unit 1 and the carrier 7 are connected by means of fastening elements or by a welded or adhesive connection. The carrier 7 extends substantially parallel to a longitudinal direction of the flap unit 1, wherein at its two end regions in each case a rotary joint is provided with a rotational degree of freedom.

Each rotary joint is connected on the one hand to the carrier 7 and on the other hand to a connecting element 6, so that a rotation of the connecting elements 6 about an axis of rotation of the rotary joint is made possible. As a result, the flap unit 1, which is fixedly connected to the carrier element 7, a rotational degree of freedom about the connecting elements 6.

The connecting elements 6 are two mirror-symmetrical components, with which the device according to the invention can be mounted, for example, on rails. The connecting elements 6 are mirror-symmetrical, relative to a plane on which the axis of rotation D is perpendicular, arranged on the carrier 7.

In the embodiment shown in Fig. 1, the connecting elements 6 are designed in the form of L-shaped angles, wherein on a leg a bore for receiving the rotary joint is provided. At the same time, this hole defines the axis of rotation D. The connecting element 6 has on the other leg two further holes through which by means of fastening elements, such as screws or rivets, the connecting elements 6 can be mounted on a running rail.

The operation of the device is explained in more detail below with reference to Figures 2A and 2B. In Fig. 2A, the embodiment of the device according to the invention is shown in a securing position. The same reference numerals point to the same elements as in FIG. 1. The axis of rotation D, which allows a rotational movement of the flap unit 1 to the connecting elements 6, lies in a horizontal plane E. The center of gravity SPK the flap unit 1 is located above this horizontal plane E. The center of gravity SPG of the assembly of the flap unit 1 and an additional element 3, cf. 4, located below the plane E. At the same time the axis of rotation D passes through a further plane F, which is perpendicular to the first and the second surface of the flap unit 1. The plane F divides the flap unit 1 into a long partial region 11 and a short partial region 12, cf. Fig. 2B. At the short portion 12, an additional element 3 is arranged as an additional weight.

The weight G (not shown) acts on the center of gravity SPG and generates a torque about the rotation axis D, so that a clockwise torque is generated, which tends to the short portion 12 as well as the long portion 11 in a vertical position related to move to the E level.

With the help of stop elements 5, see. Fig. 3A / 3B, the rotational movement of the flap unit 1 is stopped in a predetermined position, so that the flap unit 1 dwells in this securing position pos. The stop elements 5 come either directly with a rail or with a counter-stop element in contact.

From Fig. 2A it can be seen that the support and guide elements 2 are in communication with the flap unit 1. During a downward movement of the running rail, the support and guide elements 2 come with a bottom surface 15, cf. Fig. 5 in conjunction, the on the support and guide elements 2 exerts a force. This force generates a torque which counteracts the torque generated by the weight force and thus transfers the flap unit 1 into a release position Pos. 2, as shown in FIG. 2B. In a securing position Pos. 2, the first and second surfaces 13, 14 of the flap unit 1 are substantially parallel to the plane E.

Fig. 3A shows a further perspective view of an embodiment of the device according to the invention. On the connecting elements 6, respectively surfaces 8 are provided, which are brought into contact with the running rail during assembly of the device. By means of the fastening elements 4, the connecting elements 6 are mounted on the running rail, whereby the flap unit 1 is fixed with respect to the running rail such that it has only one rotational degree of freedom about the axis of rotation D.

Furthermore, the carrier 7 is mounted on the flap unit 1, wherein stop elements 5 are provided in its longitudinal end regions. These stop elements 5 have at least one abutment surface 51, which is substantially perpendicular to a tangent of a circle through whose center the axis of rotation D extends, wherein the axis of rotation is perpendicular to the circular surface. As mentioned above, the stopper members 5 define a predetermined securing position Pos. 1 of the flap unit, are secured in the vehicles, which are on the running rail before rolling.

On the second surface 14 further stop elements 5 'are arranged in the long portion 11 of the flap unit 1, which come into contact with a running rail when the flap unit 1 is in the armed position Pos. 2. The stop elements 5 'set Thus, the position of the flap unit 1 in the armed position Pos. 2 firmly.

FIG. 3B shows a further embodiment of the device, in which the stop elements 5 are arranged on the connecting elements 6. When the flap unit 1 is in a securing position, an underside of the carrier 7 comes into contact with an edge region 52 of at least one stop element 5 and fixes the securing position Pos. 1 of the flap unit 1.

In this case, the stop elements 5 can be made variable, so that different securing positions can be predetermined, for example, depending on the size of the wheel and / or the weight of the vehicle to be secured.

In another embodiment, not shown, the stop elements 5 may be bolted to the carrier 7. On a thread with which the stop element 5 is screwed to the carrier 7, at least one lock nut is provided between the carrier 7 and the stop element 5, with which the vertical distance between a contact surface 51 of the stop element 5 to a surface of the carrier 7 is adjustable by countering the nuts against a surface of the carrier 7.

As can be seen from Figures 1 and 3, the flap unit 1 and the support and guide elements 2 rounded edges in order to minimize a risk of injury to persons largely.

Fig. 4 shows a perspective sectional view of the embodiment of the present invention. The same reference numerals as in Figures 1 - 3 refer to the same components. From the sectional view It can be seen that the additional element 3 is arranged directly within the carrier 7. In this case, the additional element 3 may be connected to the carrier 7 by a welded connection, adhesive connection or by a detachable connection.

In a further, not shown embodiment of the invention, the additional element 3 can be directly connected to the flap unit 1 in connection. In this case, the additional element 3 may be mounted between the carrier 7 and a lower longitudinal edge of the short portion 12 of the flap unit 1.

In FIG. 4, the first surface 13 of the flap unit 1 has a beveled region 9 on its longitudinal side in the short partial region 12. By providing the chamfered region 9, a vehicle can be easily ascended onto the running rail. In particular, if the drive of the vehicle has a defect, the skew 9 proves to be advantageous because a vehicle can be pushed onto the running rail by hand without much effort.

In a further, not shown embodiment of the present invention, the additional element 3 may be integral with the carrier 7, for example as a carrier 7 made of solid material. Such a carrier can be in communication with the flap unit 1, wherein additionally the axis of rotation D runs eccentrically through the carrier 7. In this way, the center of gravity SPG can be shifted further below the plane E in a particularly simple manner. The carrier may have a round, oval, or at least three- or polygonal cross-section and be executed in prismatic form. In a further, not shown embodiment of the present invention, instead of the additional element 3, a rotation movement generating means, for example a tension and / or compression spring, a hydraulic cylinder, pneumatic cylinder and / or electric servomotor may be provided. The rotation generating means generates a torque tending to move the flap unit 1 to a securing position corresponding to the above-described securing position when the support and guide member 2 does not contact a bottom surface 15. Preferably, a compression spring is used as rotational movement generating means, which is on the one hand with the flap unit 1 and on the other hand with the running rail or the connecting elements 6 in connection.

From the foregoing description of the invention, it will be apparent to a person skilled in the art that the device according to the invention can also be retrofitted to a multiplicity of different travel rails on account of the connecting elements 6. In addition, such a security device can also be on rails or driving platforms as they occur, for example, in duplex garages, tow trucks, truck trailers for transporting vehicles or train carriages for transporting vehicles.

Fig. 5 shows by way of example and not limitation the use of an embodiment of the device according to the invention on a vehicle lift. In the raised state, the flap unit 1 is in a securing position, so that a rolling of a vehicle is prevented by the rails. In a deflated, not shown state of the lift, the device is folded (Pos. 2), wherein the short portion 12 covers gaps between the rail 10 and a hall floor 15, where- is significantly facilitated by the driving or pushing the vehicle onto the rail 10.

Claims

claims

1. Device, in particular for roll-off of vehicles on rails, with at least one flap unit (1) which is rotatably connected to a running rail, wherein the flap unit (1) in a securing position (Pos. 1) and in a releasing position (Pos ), by rotation about a rotation axis (D), can be converted, characterized in that in a securing position (Pos. 1) of the center of gravity (SPK) of the flap unit (1) above a horizontal plane (E) lies in which the axis of rotation ( D) is arranged.

2. Device according to claim 1, wherein an additional element (3) is provided, which is in such a way with the flap unit (1) that in a securing position (Pos. 1) the center of gravity (SPG) of the totality of flap unit (1) and Additional element (3) below a horizontal plane (E), in which the axis of rotation (D) is arranged.

3. Device according to claim 1 or 2, wherein a rotational movement generating means is provided.

4. The device according to at least one of claims 1 to 3, wherein the rotational movement generating means is a force element in such a way with the flap unit (1) is in communication that a torque about the rotational axis (D) can be generated, so that in a securing position (pos 1) the center of gravity (SPK) of the flap unit (1) lies above a horizontal plane (E), in which the axis of rotation (D) is arranged.

5. Device according to at least one of claims 1 to 4, wherein at least one stop element (5, 5 ') is provided on the flap unit (1), the carrier (7) and / or on the connecting element (6).

6. Device according to at least one of claims 1 to 5, wherein the flap unit (1) with at least one support and guide element (2) is in communication.

7. Device according to at least one of claims 1 to 6, wherein the axis of rotation (D) the flap unit (1) into a short portion (12) and a long portion (11) divided and the support and guide element (2) and / or the additional element (3) is arranged on the short portion (12).

8. The device according to at least one of claims 1 to 7, wherein the additional element (3) consists of a material with high density and is in communication with the flap unit (1).

9. Device according to at least one of claims 1 to 8, wherein the flap unit (1) is formed from a grid plate, a perforated plate and / or a plate, wherein the flap unit (1) consists of organic material, inorganic material and / or plastic.

10. The device according to at least one of claims 1 to 9, characterized in that it can be retrofitted to existing rails.

11. Device, in particular for roll-off of vehicles on rails, with at least one flap unit (1) which is rotatably connected to a running rail, wherein the flap unit (1) in a securing position (Pos. 1) and in a release position (Pos ), by rotation about a rotation axis (D), can be converted, characterized in that in a securing position (Pos. 1) of the center of gravity (SPK) of the flap unit (1) above a horizontal plane (E) lies in which the axis of rotation ( D), wherein an additional element (3) is provided, which is in such a way with the flap unit (1) that in a securing position (Pos. 1) the center of gravity (SPG) of the totality of flap unit (1) and additional element ( 3) lies below a horizontal plane (E), in which the axis of rotation (D) is arranged.

12. Device, in particular for roll-off of vehicles on rails, with at least one flap unit (1) which is rotatably connected to a running rail, wherein the flap unit (1) in a securing position (Pos. 1) and in a releasing position (Pos ), by rotation about a rotation axis (D), can be converted, characterized in that in a securing position (Pos. 1) of the center of gravity (SPK) of the flap unit (1) above a horizontal plane (E) lies in which the axis of rotation ( D), wherein an additional element (3) is provided, which in such a way with the flap unit (1) in connection that in a securing position (Pos. 1) of the center of gravity (SPG) of the totality of flap unit (1) and Additional element (3) below a horizontal plane (E), in which the axis of rotation (D) is arranged, wherein a rotational movement generating means is provided.

13. Device, in particular for roll-off of vehicles on rails, with at least one flap unit (1) which is rotatably connected to a running rail, wherein the flap unit (1) in a securing position (Pos. 1) and in a releasing position (Pos ), by rotation about a rotation axis (D), can be converted, characterized in that in a securing position (Pos. 1) of the center of gravity (SPK) of the flap unit (1) above a horizontal plane (E) lies in which the axis of rotation ( D), wherein an additional element (3) is provided, which is in such a way with the flap unit (1) that in a securing position (Pos. 1) the center of gravity (SPG) of the totality of flap unit (1) and additional element ( 3) is below a horizontal plane (E), in which the rotation axis (D) is arranged, wherein a rotational movement generating means is provided, wherein the rotational movement generating means is a force element, in such a way with the flap unit (1) in Verbin tion is that a torque about the rotational axis (D) can be generated, so that in a locking position (pos. 1) the center of gravity (SPK) of the flap unit (1) lies above a horizontal plane (E), in which the axis of rotation (D) is arranged.

14. Device, in particular for roll-off of vehicles on rails, with at least one flap unit (1) rotatable with a running rail wherein the flap unit (1) can be converted into a securing position (item 1) and into an unlocking position (item 2) by rotation about a rotation axis (D), characterized in that in a securing position (item 1 ) the center of gravity (SPK) of the flap unit (1) lies above a horizontal plane (E), in which the axis of rotation (D) is arranged, wherein a rotational movement generating means is provided.

15. Device, in particular for roll-off of vehicles on rails, with at least one flap unit (1) which is rotatably connected to a running rail, wherein the flap unit (1) in a securing position (Pos. 1) and in a release position (Pos ), by rotation about a rotation axis (D), can be converted, characterized in that in a securing position (Pos. 1) of the center of gravity (SPK) of the flap unit (1) above a horizontal plane (E) lies in which the axis of rotation ( D), wherein a rotational movement generating means is provided, wherein the rotational movement generating means is a force element in such a way with the flap unit (1) is in connection that a torque about the rotational axis (D) can be generated, so that in a securing position (Pos. 1) the center of gravity (SPK) of the flap unit (1) lies above a horizontal plane (E), in which the axis of rotation (D) is arranged.

16. Device, in particular for roll-off of vehicles on rails, with at least one flap unit (1) which is rotatably connected to a running rail, wherein the flap unit (1) in a securing position (Pos. 1) and in a Entsicherungsstellung (Pos. 2), by rotation about a rotation axis (D), can be transferred , characterized in that in a securing position (Pos. 1) of the center of gravity (SPK) of the flap unit (1) above a horizontal plane (E), in which the axis of rotation (D) is arranged, wherein the flap unit (1) with at least a support and guide element (2) is in communication.

17. Device, in particular for roll-off of vehicles on rails, with at least one flap unit (1) which is rotatably connected to a running rail, wherein the flap unit (1) in a securing position (Pos. 1) and in a release position (Pos ), by rotation about a rotation axis (D), can be converted, characterized in that in a securing position (Pos. 1) of the center of gravity (SPK) of the flap unit (1) above a horizontal plane (E) lies in which the axis of rotation ( D), wherein an additional element (3) is provided, which is in such a way with the flap unit (1) that in a securing position (Pos. 1) the center of gravity (SPG) of the totality of flap unit (1) and additional element ( 3) lies below a horizontal plane (E), in which the axis of rotation (D) is arranged, wherein the flap unit (1) with at least one support and guide element (2) is in communication.