DE20104597U1 - Driving device for movable objects or movable object - Google Patents

Description

GDE01E17

"Transportation device for movable objects or movable object"

The invention relates to a transport device for movable objects, in particular for machines, frames or the like, with at least one wheel element that is mounted so that it can rotate about its wheel axis and is arranged so that it can move, wherein, in a state of the transport device arranged on the object, the wheel element can be brought at least into a lower first position for the realization of the contact between the wheel element and the ground to enable the object to be moved, and the wheel element can be brought into an upper second position to enable the object to be positioned on the ground. The invention further relates to a movable object with a corresponding transport device.

In the state of the art, various transport devices for movable objects such as machines, frames, hospital beds, in particular for band saws, table saws or the like are known. What all of these objects have in common is that they have to be positioned, i.e. set up and occasionally moved, in different places at certain times. For this purpose, it is advantageous if the objects are movable and have appropriate transport devices for this purpose.

The driving devices currently known in the state of the art have wheel elements that are rotatably mounted about corresponding wheel axles and are preferably designed as wheels, rollers or cylinders. If such a driving device is arranged on a movable object, the wheel elements are preferably also arranged to be movable, namely they can be brought into at least a lower first position (driving position) and an upper second position (parking position). For example, driving devices are known where the wheel elements can be moved upwards and downwards by means of a threaded spindle, namely when the user applies a corresponding turning force. The wheel elements are brought into the lower first position when the corresponding object has to be moved, since in the lower first position a corresponding contact between the wheel element and the ground is made possible in order to be able to move the object. In the upper second position, the wheel

element, however, has no contact with the ground, so that the positioning of the object itself on the ground is possible and the object then stands "firmly" on the ground or is positioned there due to the corresponding contact with the ground.

The alternative already described, of turning a wheel element of a travel device upwards and downwards using a threaded spindle, is usually very expensive and time-consuming to handle in the holding position and is therefore not yet optimal.

Furthermore, the prior art includes moving devices that are connected to the object, in particular the machine or the frame, in such a way that the machine always stands on the wheel elements. For this purpose, appropriate fixing devices are also provided in the area of the wheel elements so that the wheel elements can be fixed in a certain position so that they no longer rotate, so that the machine is initially also "fixed" to the ground. However, this alternative, i.e. a machine that always stands on the corresponding wheel elements, is often not permitted for certain work machines (circular saws, table saws, band saws) for labor law reasons, since there is a risk that the corresponding fixing device on the moving device will be inadvertently released during processing of a workpiece and the machine can then be moved inadvertently.

Furthermore, the prior art also includes moving devices that are arranged on only one side of the machine or frame, whereby in order to move the machine, the machine must be lifted on the opposite side so that the wheel elements of the moving device come into contact with the ground. In this case, the machine often not only has to be positioned at a very steep angle so that the foot elements of the machine have sufficient clearance from the ground and the machine can be moved, but the workload over a longer period of time, namely due to the longer lifting of the machine, is very high.

Furthermore, there are moving devices that are only screwed on for moving the machine or the frame or are attached to it by a locking mechanism.

must be attached. This way of making an object such as a machine or a frame mobile is also very complex in most cases. In addition, there are moving devices that have corresponding levers etc. or other elements so that the wheel elements of the moving devices can be brought into the appropriate position.

As a result, the moving devices known in the state of the art are not yet optimally designed. On the one hand, the amount of work required by the user to move a corresponding object, in particular a machine, is very high and requires increased physical effort from the user over a longer period of time, for example when tilting a machine in order to move it, or the moving devices must first be assembled in order to move the machine, or moved up and down manually using a spindle provided with the appropriate torque. On the other hand, the sources of danger for the user when handling the known moving devices are increased because, for example, the user has to lift the machine over a longer period of time (back injuries) or has to operate additional elements such as spindles, levers or the like in a complex manner, which brings with it the risk of jamming or the like.

The invention is therefore based on the object of designing and developing a driving device of the type mentioned at the outset in such a way that the manner of operation is considerably simplified, in particular the workload for the user and the possible sources of danger for the user are reduced.

The previously indicated task is now solved by the wheel element being mounted and/or arranged to be movable in such a way that the wheel axle of the wheel element can be moved at least from its first position and/or from its second position by a pressure force generated by the user and acting directly or indirectly on the wheel element. The driving device according to the invention is now designed and developed in such a way that the displacement or positioning of the wheel element is made possible in a simple manner for a user. By applying a simple pressure force, the

The wheel element can be moved from the first and second position. The user applies the pressure force with the help of his foot, i.e. applies the pressure force directly to the wheel element by raising his foot. This has the advantage that he does not need his hands for this and can use them elsewhere, so that a second person is no longer needed to move an object, for example to tilt the machine and lift it "tilted" over a longer period of time. The object, i.e. the machine or the frame, is lifted once and the wheel element is positioned accordingly with the help of the foot force applied, namely either in the lower first position (driving position) or in the upper second position (parking position). The simple "possibility of moving" the wheel axle of the wheel element, namely with the help of a simple pressure force that can be applied by the user's foot, achieves decisive advantages, namely the operating effort required to move an object is significantly minimized, and the potential sources of danger for the user are also reduced. As a result, the driving device according to the invention avoids the disadvantages described above and achieves corresponding advantages.

There are now a number of possibilities for designing and developing the driving device according to the invention, for which reference may first be made to the claims subordinate to claim 1. A preferred embodiment of the invention will now be explained in more detail with reference to the following description and the drawing. The drawing shows:

Fig. la shows in a simplified schematic perspective exploded view the assembly or the individual components of a driving device according to the invention,

Fig. Ib shows the driving device assembled according to Fig. la in a perspective schematic representation,

Fig. 2 shows the driving device according to the invention shown in Fig. 1 in a schematic simplified representation from the side, arranged on the foot

of an object, wherein the wheel element occupies the upper second position (parking position),

Fig. 3 shows the driving device according to the invention shown in Figs. 1 and 2 in a simplified schematic representation from the side, in a simplified schematic representation from the side, with the wheel element assuming its lower first position (driving position),

Fig. 4 shows a second embodiment of a driving device according to the invention in a simplified schematic representation from the side, with the wheel element in its lower first position (driving position), arranged at the foot of an object and

Fig. 5a is a schematic simplified representation of the driving device according to the invention shown in Figs. 1 to 3 from above and

Fig. 5b in a simplified schematic representation, the driving device shown in Fig. 4 from above.

Fig. 1 to 5 show a transport device 1 for a movable object, which is not shown in detail but only partially, such as for a machine, a frame or the like, in particular for machine tools such as band saws, table saws, but also for hospital beds or the like.

The driving device 1 has a wheel element 3 that is rotatably mounted and movably arranged around the wheel axis 2. The wheel element 3 shown here is designed as a roller. However, it is also conceivable that the wheel element 3 is designed like a roller or in some other way. The decisive factor is that the wheel element 3 ensures that the object can be easily moved, namely with the help of the driving device 1.

The driving device 1 shown in Figs. 1 and 5 can be arranged or attached to a corresponding object. Figs. 2, 3 and 4 show a driving device 1 which is arranged on the foot, namely on the support area 14 of an object not specified in more detail.

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The wheel element 3 of the driving device 1 can now be brought into a lower first position I and into an upper second position II. If the driving device 1 is arranged on an object, i.e. preferably in a position attached to the object.

5 arranged state of the driving device 1 and when the wheel element 3 is in the lower first position I, contact between the wheel element 3 and the floor 4 is ensured so that the object can be moved accordingly with the help of the driving device 1. If the wheel element 3 assumes its upper second position II, the driving device 1 is designed such that the object itself can be positioned directly or indirectly on the floor 4, namely has direct or indirect contact with the floor 4, and therefore cannot be moved. For this purpose, the driving device 1 can be designed and arranged on the object in such a way that it itself touches the floor 4 in order to ensure that the object is positioned on the floor 4, namely, for example, it itself has a support area, or the driving device 1 is arranged on the object, for example in its foot area, in such a way that the feet of the object itself, namely its support area 14, as shown in Figs. 2, 3 and 4, come into contact with the floor 4. This will become clearer in the following.

The disadvantages described at the beginning are now addressed by the fact that the wheel element 3 is mounted and/or arranged to be movable in such a way that the wheel axle 2 of the wheel element 3 can be moved at least from its first position and/or from its second position by a pressure force Fi that can be generated by the user and acts directly or indirectly on the wheel element 3. As already explained at the beginning, this has decisive advantages, in particular the user can generate the pressure force Fi with the help of his foot and move the wheel element 3 or the wheel axle 2 of the wheel element 3 accordingly, in particular press the wheel element 3 down or press it up, i.e. move the wheel element 3 into the lower first position I (driving position) or into the upper second position II (parking position). No additional person is required to operate the driving device 1 or to move the object, in particular to lift the machine over a longer period of time. The driving device 1 shown can be mounted on any machine or frame, since it is primarily a single-wheel construction.

In the following, the preferred embodiments of the driving device 1 will be described in more detail:

Firstly, the driving device 1 has a first holding leg 5 which is essentially L-shaped and can be clearly seen in Figs. 1 to 5. The first holding leg 5 is preferably designed as "double-walled". For this purpose, the first holding leg 5 has a base plate 5a and two lateral areas 5b which are essentially designed as side walls. In the lateral areas 5b of the first holding leg 5, a first guide slot 6 is provided for the storage or guidance of the wheel element 3. As Figs. 1 to 4 show, the first guide slot 6 is designed such that the first and second positions I and II of the wheel element 3 are defined by the beginning and the end of the first guide slot 6. For this purpose, the first guide slot 6 is at least partially J-shaped.

Furthermore, a substantially L-shaped second holding leg 7 is provided, as is clearly shown in Fig. 1a. The second holding leg 7 is preferably also designed as "double-walled" and also has a base plate 7a and two side areas 7b. As can be clearly seen in Fig. 1 to 5, the second holding leg 7 is hinged to the first holding leg 5. For this purpose, the second holding leg 7 is hinged to the first holding leg 5 at its upper end using a bolt 8. For this purpose, first bearing openings 9 are provided on the first holding leg 5 and second bearing openings 10 are provided on the second holding leg 7, so that the second holding leg 7 can be hinged to the first holding leg 5 using the bolt 8. In the side areas 7b of the second holding leg 7, a second guide slot 11 is now provided for the bearing or guidance of the wheel element 3. This can be clearly seen in Fig. 1 as well as in Figs. 3 and 4. The second guide slot 11 is now designed in such a way that the first and second positions I and II can be reached accordingly when the wheel element 3 is displaced. For this purpose, the second guide slot 11 is preferably elongated, namely designed as an elongated hole. The first and second guide slots 6 and 11 are preferably designed as through holes in the corresponding lateral areas 5b and 7b of the first and second holding legs 5 and 7.

The wheel element 3 has a bearing pin 12, which can be designed as a bolt, for example, and can be inserted or stored in a corresponding recess opening in the wheel element 3. It is important that the bearing pin 12 can be stored within the first and second guide slots 6 and 11 or can be guided through the first and second guide slots 6 and 11, respectively, which will be explained in more detail below.

For the further functioning of the driving device 1, a spring element 13 is now effectively arranged between the first and second holding legs 5 and 7. For example, recesses not shown here can be provided for mounting the spring element 13. The spring element 13 shown schematically here is preferably designed as a helical spring, but spring elements 13 of other designs are also conceivable, for example hydraulic spring elements, leaf springs, etc.

In the following, the mode of operation of the driving device 1 according to the invention will first be described in more detail with reference to Fig. 2 and 3. The wheel element 3 is now mounted and/or arranged to be movable in such a way that the wheel axle 2 of the wheel element 3 can be moved both from its first lower position I - as shown in Fig. 3 - and from its upper second position II - as shown in Fig. 2 - by a pressure force Fi generated by the user and acting directly on the wheel element 3.

As shown in Fig. 2, the wheel element 3 is mounted and arranged to be displaceable in such a way that the wheel element 3 can be moved out of the second position II (parking position) by the pressure force Fi against the spring force F2 generated by the spring element 13 and finally into the first position I by the spring force F2 - without a pressure force Fi being applied. As shown in Fig. 2, the user's foot is placed directly on the wheel element 3, whereby the user briefly lifts the object to be moved. The user then uses his foot to generate the pressure force Fi (shown by the corresponding arrow) and presses the wheel element 3, which is in its upper second position II in Fig. 2, downwards, whereby the wheel axle 2, namely the bearing pin 12 of the wheel element 3, is within the first

guide slot 6 downwards. The second holding leg 7 pivots inwards, namely to the right in Fig. 2 against the spring force F2 (shown by the other arrow), whereby while the wheel element 3 is being pressed down, the wheel axle 2 simultaneously moves downwards along the second guide slot 11 and pivots the second holding leg 7 in the process. At the end of the first guide slot 6, where it is almost J-shaped, a "locking position" for the wheel axle 2, namely the bearing pin 12, is formed by the end of the first guide slot 6. If the wheel axle 2 or the bearing pin 12 reaches the lower area of the first guide slot 6 and the user takes his foot off the wheel element 3, i.e. there is no longer any pressure force Fi, the wheel axle 2 or the bearing pin 12 slides into the end of the first guide slot 6, so that the wheel element 3 then assumes the first position I (driving position), which is shown in Fig. 3. In this case, the machine or the object can be moved accordingly with the help of the driving device 1.

If the wheel element 3 is now to be moved from its lower first position I to its upper second position II, i.e. from the driving position to the parking position, then - as shown in Fig. 3 - a corresponding pressure force Fi is again applied by the user, preferably by the user's foot, to the wheel element 3, this time in a slightly oblique direction. For this purpose, the object, i.e. the machine, is again briefly slightly raised. By applying the pressure force Fi, which acts against the spring force F2, the wheel axle 2 or the bearing pin 12 of the wheel element 3 leaves its "locking position" and moves along the first guide slot 6, initially slightly downwards, then slightly to the right and finally upwards, with the second holding leg 7 being pivoted first to the right against the spring force F2 and then to the left with the same amount of spring force F2, particularly when the user has taken his foot off the wheel element 3, so that the pressure force Fi is no longer applied.

As shown in Figs. 2 to 4, a support region 14 is shown here, with the aid of which the movable object can be positioned on the floor 4, because here the support region 14 is precisely the foot region of the object and the driving device 1 is arranged on it.

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It is also conceivable that the driving device 1 itself has such a support region or that the support region is formed by the lower edge of the lateral regions 5b of the first holding leg 5. As a further embodiment, the support region 14 can be designed as a separate support post of the driving device 1.

As can be clearly seen from Fig. 2, the support region 14, i.e. the support post of the object itself, rests on the ground 4 when the wheel element 3 is in its upper second position II (parking position), whereas the support region 14 no longer rests on the ground 4 when the wheel element 3 is in its lower first position I (driving position).

As already mentioned, the driving device 1 can have a support area 14. However, this does not necessarily have to be the case, since such a driving device 1 can also be arranged on the foot of an object, particularly on the feet of a machine or a hospital bed, so that the feet of the machine or the hospital bed themselves can come into contact with the floor 4, as is shown here in Figs. 2, 3 and 4.

Fig. 4 shows a further preferred embodiment of the driving device 1. Here, the driving device 1 is pivotally connected to the support area 14. This has the advantage that an object can be moved optimally, since corresponding changes in direction can also be carried out easily. For this purpose, the driving device 1 has a type of retaining clip 15a and a retaining bolt 16, with the aid of which a corresponding pivotability relative to the support area 14 can be achieved with the aid of a further retaining clip 15b.

The individual components of the driving device 1 can now be made from different materials. This depends on the respective application. Sheet metal, sheet steel, plastic and other corresponding alloys and also rubber components are conceivable, especially for the wheel element 3.

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It is also conceivable that a different mounting than the one shown here is implemented for the wheel axle 2, so that the first holding leg 5 or the second holding leg 7 are not designed to be "double-walled". This also depends on the respective application, in particular on the space available for arranging the corresponding driving device 1 on a movable object.

As a result, the workload for the user is considerably reduced with the specialist device 1 according to the invention created here and a very cost-effective, easy-to-use driving device 1 is created.

GDE01E17 *

List of reference symbols :

I Driving device 2 wheel axle

3 Wheel element

4 Floor

5 1. Holding leg 5a Base plate

5b lateral areas

6 1. Leadership backdrop

7 2. Holding leg 7a Base plate

7b lateral areas

8 bolts

9 1. Warehouse opening

10 2. Warehouse opening

II 2. Guide slot 12 bearing pins

13 Spring element

14 Support area

15a retaining clip

15b Retaining clip

16 retaining bolts

Fi pressure force

F2 spring force

I lower first position

II upper second position

Claims (24)

1. Transport device ( 1 ) for movable objects, in particular for machines, frames or the like, with at least one wheel element ( 3 ) which is rotatably mounted and movably arranged about its wheel axis ( 2 ), wherein - vzw. in a state of the driving device ( 1 ) arranged on the object - the wheel element ( 3 ) can be brought at least into a lower first position (I) for the realization of the contact between the wheel element ( 3 ) and the ground ( 4 ) to enable the object to be moved and the wheel element ( 3 ) can be brought into an upper second position (II) to enable the object to be positioned on the ground ( 4 ), characterized in that the wheel element ( 3 ) is mounted and/or arranged to be movable in such a way that the wheel axle ( 2 ) of the wheel element ( 3 ) can be moved at least from its first position (I) and/or from its second position ( _{II) by a pressure force (F 1} ) that can be generated by the user and acts directly or indirectly on the wheel element (3). 2. Driving device according to the preceding claim, characterized in that the wheel element ( 3 ) is mounted and displaceably arranged in such a way that the wheel element ( 3 ) can be moved by the pressure force (F ₁ ) from its second position (II) substantially in the direction of the first position (I) and - at least initially - by the pressure force (F ₁ ) from its first position (I). 3. Driving device according to one of the preceding claims, characterized in that at least one spring element ( 13 ) is provided and is functionally arranged in such a way that the wheel element ( 3 ) can be moved out of the first position (I) by the pressure force (F ₁ ) against a spring force (F ₂ ) generated by the spring element ( 13 ) and can finally be moved into the second position (II) by the spring force (F ₂ ) - without a pressure force (F ₁ ) being applied. 4. Driving device according to one of the preceding claims, characterized in that at least one spring element ( 13 ) is provided and is functionally arranged in such a way that the wheel element ( 3 ) can be moved out of the second position (II) by the pressure force (F ₁ ) against a spring force (F ₂ ) generated by the spring element ( 13 ) and can finally be moved into the first position (I) by the spring force (F ₂ ) - without a pressure force (F ₁ ) being applied. 5. Driving device according to one of the preceding claims, characterized in that a substantially L-shaped first holding leg ( 5 ) is provided. 6. Driving device according to one of the preceding claims, characterized in that the first holding leg ( 5 ) is double-walled. 7. Driving device according to one of the preceding claims, characterized in that in the lateral region ( 5b ) of the first holding leg ( 5 ) a first guide slot ( 6 ) for the mounting of the wheel element ( 3 ) is provided. 8. Driving device according to one of the preceding claims, characterized in that the first guide slot ( 6 ) is designed such that the first and second positions (I and II) of the wheel element ( 3 ) are defined by the beginning and end of the first guide slot ( 6 ). 9. Driving device according to one of the preceding claims, characterized in that the first guide slot ( 6 ) is at least partially J-shaped. 10. Driving device according to one of the preceding claims, characterized in that a substantially L-shaped second holding leg ( 7 ) is provided. 11. Driving device according to one of the preceding claims, characterized in that the second holding leg ( 7 ) is double-walled. 12. Driving device according to one of the preceding claims, characterized in that the second holding leg ( 7 ) is hinged to the first holding leg ( 5 ). 13. Driving device according to one of the preceding claims, characterized in that in the lateral region ( 7b ) of the second holding leg ( 7 ) a second guide slot ( 11 ) for the mounting of the wheel element ( 3 ) is provided. 14. Driving device according to one of the preceding claims, characterized in that the second guide slot ( 11 ) is designed such that the first and second positions (I and II) of the first guide slot ( 6 ) can be reached accordingly when the wheel element ( 3 ) is displaced. 15. Driving device according to one of the preceding claims, characterized in that the second guide slot ( 11 ) is elongated. 16. Travel device according to one of the preceding claims, characterized in that the first and second guide slots ( 6 ; 11 ) are designed as through holes. 17. Driving device according to one of the preceding claims, characterized in that a bearing pin ( 12 ) of the wheel element ( 3 ) can be mounted within the first and second guide slots ( 6 ; 11 ). 18. Driving device according to one of the preceding claims, characterized in that the spring element ( 13 ) is effectively arranged between the first and second holding legs ( 5 ; 7 ). 19. Driving device according to one of the preceding claims, characterized in that the spring element ( 13 ) is designed as a helical spring. 20. Transport device according to one of the preceding claims, characterized in that a support region ( 14 ) is provided for positioning the object on the floor ( 4 ). 21. Travel device according to one of the preceding claims, characterized in that the support region is formed by the lower edge of the lateral region ( 5 b) of the first holding leg ( 5 ). 22. Travel device according to one of the preceding claims, characterized in that the support area ( 14 ) is designed as a separate support post. 23. Driving device according to one of the preceding claims, characterized in that the driving device ( 1 ) can be pivoted to an object about a substantially vertical axis. 24. Movable object, in particular a machine tool, hospital bed or the like, characterized by a travel device ( 1 ) according to one of claims 1 to 23.