DE102013007197B4 - pulley drive - Google Patents

Abstract

Pulley drive for use in sports equipment and vehicles, which can be mechanically operated by means of an up and down movement with the feet or other body parts with the help of its own weight and the necessary physical strength, because the pulley with its attached roller (F1) on a cover plate (12) is fixed and a loose pulley roller (F2) moves during operation of a of the cover plate (12) remote position in a closer to the cover plate (12) located position and then mechanically back to the position of the cover plate (12) remote position, characterized characterized in that a toothed belt (5) located on the axle drive pulley (6) and on top of a free-running guide pulley (7) is attached to the loose pulley roller (F2) with a toothed belt support (4), trains and at least one drive wheel (15) drives and moves forward during the extended lift with increased drive power and a to a pedal pedal (8) belonging to guide and pull roller (9) when down pedaling the pedal (8) from an upper to a lower position a pull rope (3) of the pulley pull down twice the length of a lifting height (11), since the end of Pulling cable (3) behind the guide and tension roller (9) at an attachment point (10) on the cover plate (12) is attached.

Description

The invention relates to a pulley drive for use in sports equipment and vehicles.

The starting point of the invention are bicycles, go-karts, vehicles for several people and bicycle-like vehicles or scooters, which have a chain drive and are equipped with running boards, as they are used in referred to as "stepper" fitness equipment. A bicycle with such running boards is for example in WO 2012/131404 A1 described.

It has been shown that the operators of such vehicles usually complain about the tedious locomotion. Lenders of these vehicles can therefore only settle mainly where flat terrain prevails. Another disadvantage of these vehicles is that they are too bulky and maintenance intensive.

Against this background, the invention has the object to provide a drive for sports equipment and vehicles of the aforementioned type, which can be operated mechanically by means of the user's own weight and its physical strength and compared to the aforementioned vehicles allows carefree movement generation.

This object is achieved by a first pulley drive with the features specified in claim 1 and with a second pulley drive with the features specified in claim 2. Advantageous developments of this pulley drives will become apparent from the dependent claims, the following description and the drawings.

The inventively provided first pulley drive is used in sports equipment and vehicles. This is a drive that can be mechanically operated by means of an up and down movement with the feet or other parts of the body with the help of its own weight and the necessary physical strength. The inventively provided second pulley drive is also used in sports equipment and vehicles. It differs from the first pulley drive to the effect that it can be mechanically operated by a circular motion with the feet or other body parts with the help of its own weight and the necessary physical strength, otherwise the second pulley drive but with the first pulley drive matches, which is based on an embodiment shown in the drawing is explained in more detail.

The drawing shows, in each case in a schematically highly simplified side view:

1 a rear part of a scooter with a pulley drive in a first operating state and

2 the back of the scooter 1 with the pulley drive in a second operating state.

As is clear from the drawing, a scooter is equipped with a pulley drive, which is mechanically operated by means of an up and down movement with the feet. For this purpose, the scooter has a pedal 8th and a pulley. The pulley is with a pull rope 3 , equipped with a fixed roller F1 and with a loose pulley roller F2. The attached roller F1 is on a cover plate 12 attached. The rope 3 is at one end at an attachment point 10 attached. The attachment point 10 is here behind a leadership and train role 9 arranged, which to the pedal 8th belongs. On an axis drive pulley 6 and on top of a free-running guide disc 7 there is a toothed belt 5 , The timing belt 5 is at the loose Pulley F2 with a timing belt bracket 4 attached.

When stepping down the pedal 8th from the in 1 shown upper position in the in 2 shown lower position moves the loose pulley F2 of one of the cover plate 12 distant position ( 1 ) in a closer to the cover plate 12 located position ( 2 ). Because the end of the pull rope 3 on the cover plate 12 is attached, the tow rope becomes 3 the pulley by twice the length of a lifting height 11 of the pedal 8th pulled down, causing the timing belt 5 a drive wheel 15 the scooter drives and in this case exerts a move to the forward movement of the scooter, the pulley enormously enhances the acting force of the operator. Then comes the loose pulley F2 mechanically back into the in 2 shown, from the cover plate 12 backward position.

The basic idea of the invention is thus to integrate the advantages of a pulley into a closed drive operated by the body weight and the physical force, in order to enjoy a lighthearted locomotion in sports equipment or vehicles and to make it fun even on hilly terrain to have carefree driving. Here, the pulley drive when installing in various sports equipment and vehicles always be adapted to different situations, as far as the basic principle of the described pulley drive is met. In this context, it may be advantageous, for example, if two or more pulleys are installed in a device, wherein the pulleys or their rollers can be advantageously formed from any materials. Furthermore, it may be appropriate to incorporate a scar in a drive shaft, a freewheel and a return spring. In addition, it may be provided according to a further advantageous embodiment of the invention pulley drive that the pedal pedal in height, angle and length is adjustable, whereby the pulley drive according to the invention can be adapted to the individual needs of the operator. It is therefore possible to operate the drive as desired by the left or right foot in an optimal position, which ensures the highest efficiency or the most comfortable execution of the treadle.

Although not part of the invention, it should be noted that in the in the 1 and 2 shown scooters the pull rope 3 instead of at the attachment point 10 also at a position 14 on the pedal 8th can be fixed to achieve fewer turns. According to a further variant not according to the invention, the drive wheels of a pulley drive can also be driven by a pre-rolled drive cable, which is pre-rolled on a drive axle and can be mechanically connected to a loose pulley block to subordinate applications of the pulley drive on the timing belt according to the invention to dispense with its components for cost reasons. Finally, it should also be mentioned that the pulley drive according to the invention can also be operated when the movable pulley F2 shown in the drawing is missing, and the guided over the fixed roller F1 pulley cable is connected directly to a drive roller frictionally and drives at least one drive wheel to subordinate Fields of application of the pulley drive for economic reasons missing parts.

LIST OF REFERENCE NUMBERS

3

rope

4

Timing belt holder

5

toothed belt

6

Axis drive pulley

7

guide disc

8th

foot pedal

9

Guide and tension roller

10

attachment point

11

Lifting height

12

cover sheet

14

position

15

drive wheel

F1

role

F2

pulley wheel

Claims (4)

Pulley drive for use in sports equipment and vehicles, which can be operated mechanically by means of an up and down movement with the feet or other body parts with the help of its own weight and the necessary physical strength, because the pulley with its attached roller (F1) on a cover plate ( 12 ) and a loose pulley roller (F2) during operation of one of the cover plate ( 12 ) distant position in a closer to the cover plate ( 12 ) and then mechanically back into the of the cover plate ( 12 ) remoter position, characterized in that a toothed belt ( 5 ) located on the axle drive pulley ( 6 ) and on top of a free-running guide disc ( 7 ), with the loose pulley (F2) with a toothed belt holder ( 4 ), performs a train and at least one drive wheel ( 15 ) drives and moves forward during the extended lift with increased drive force and one to a pedal ( 8th ) belonging guide and traction roller ( 9 ) when stepping down the pedal ( 8th ) from an upper to a lower position a pull rope ( 3 ) of the pulley twice the length of a lifting height ( 11 ), because the end of the pull rope ( 3 ) behind the guide and pull roller ( 9 ) at an attachment point ( 10 ) on the cover plate ( 12 ) is attached. Pulley drive for use in sports equipment and vehicles, which can be mechanically operated by means of a circular movement with the feet or other body parts with the help of its own weight and the necessary physical strength, because the pulley with its attached roller (F1) on the cover plate ( 12 ) and a loose pulley roller (F2) during operation of one of the cover plate ( 12 ) distant position in a closer to the cover plate ( 12 ) and then returns mechanically to the position further away from the cover plate, characterized in that a toothed belt ( 5 ) located on the final drive pulley ( 6 ) and on top of a free-running guide disc ( 7 ), with the loose pulley (F2) with a toothed belt holder ( 4 ), performs a train and at least one drive wheel ( 15 ) drives and moves forward during the extended lift with increased drive force and one to a pedal ( 8th ) belonging guide and traction roller ( 9 ) when stepping down the pedal ( 8th ) from an upper to a lower position a pull rope ( 3 ) of the pulley twice the length of a lifting height ( 11 ), because the end of the pull rope ( 3 ) behind the guide and pull roller ( 9 ) at an attachment point ( 10 ) on the cover plate ( 12 ) is attached. Pulley drive according to one of claims 1 or 2, characterized in that also two or multiple pulleys installed in one unit. Pulley according to one of the preceding claims, characterized in that the pedal ( 8th ) in height, angle and length is adjustable.

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