DE20305276U1 - Mechanical dispensing unit for use in ball field sports training - Google Patents

Abstract

The unit has a frame that supports a pair of roller [1,2] that impart spin to a ball that is within a cage [11]. The rollers are driven by in line motors that are controlled by a programmable logic unit such that the roller operate to eject a ball with a given flight path and spin. A cam [5] provides adjustment for different ball sizes.

Description

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Utility model application: hleclfanisihe Sall$iflg3be,z0r SjDielfQrtsetzung on sports fields

Description:

Mechanical ball input to resume play on sports fields.

Ball machines of the usual design have a funnel-shaped ball supply and 2 rotating rollers, e.g. in tennis and baseball, and are designed for balls of much smaller circumference and are designed purely for training purposes. Due to the small ball circumference and the nature of the ball, it is moved from a funnel-shaped ball supply to a pair of rollers using only its own weight. Ball machines for balls with a minimum circumference of 60 cm, which are made of leather or another material suitable for the sport and have a certain atmospheric pressure, must have additional properties for quick, controlled and flexible inputs to continue the game on sports fields.

In ball games on sports fields, especially football and volleyball fields, balls that have left the boundary of the playing field, so-called out-of-bounds balls, must be returned to the playing field at the same place or at a designated place. The traditional return of a game ball by a "ball boy and/or ball girl" for the purpose of continuing the game is often associated with delays in transport and inaccuracies when throwing.

The invention specified in claim 1 is based on the problem of creating a mechanical ball input for resuming play on sports fields, in particular football and volleyball fields, which feeds a ball to a predetermined location on the field quickly, in a controlled manner and in accordance with the conditions of a standard field border.

This problem is solved with the features listed in claim 1.

The invention ensures that the ball remains in the designated place on the field, especially for kicks and corners or serves, even without being picked up (catching or stopping the ball by a player), so that a player can continue playing immediately as soon as the referee has given the go-ahead to play. The variable setting options for ball input with regard to the shot distance, flight phase and spin function of the ball mean that the positioning of the device can be flexibly adapted to the conditions of the respective field edge and the weather conditions. Ball input can optionally be started at the push of a button or via radio triggering.

All of the technology is housed in a body/protective cover that can be designed variably. The flap opening on the body, which is integrated into the program sequence, ensures that the flap opens immediately before the ball is transported and closes again immediately after the ball has exited. The relatively short opening time represents a predictable and perceptually attractive ball entry onto the playing field for the ball receiver, as well as for the observer on site and the observer via the visual media.

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Utility model application: Mechanical ball bearing system for playing on sports fields

An embodiment of the invention is explained with reference to Figures 1 to 4.

Fig. 1 Side view right without side cover

Fig. 2 Back view

Fig. 3 Side view right

Fig. 4 Side view left with body and opening flap

The specially shaped rollers (1 and 2) with adhesive coating are each driven by permanent direct current electric motors (3 and 4) as shown in Fig. 2 and 3. The ball is fed via a cam drive (5), which guides the ball in its reservoir (7) to the rotating rollers in a controlled manner by turning the same. The cam drive (5) is controlled as shown in Fig. 2 and 3 via an electric motor (6) with a flanged gear. The upper roller (2) is also guided in a swing arm (9), which ensures that small deviations in the ball diameters can be compensated for by adjusting it.

The core element according to Fig. 2 and 3 is an electronic logo module (8), which ensures a programmed sequence of variable ball transport. On the one hand, the program regulates the rotation of the cam (5), and on the other hand, the speed of the individually controlled electric motors (3 and 4 / roller drive).

By means of the different speeds that can be generated on the drive motors (3 and 4), the machine is able to set the ball to be transported to different trajectories or ranges with or without a spin function (generated rotation of the ball).

The technology is embedded in a frame (10) and is surrounded by a protective cover/body (11) as shown in Fig. 4, the opening flap of which is also integrated in the program flow of the logo module (8).

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Claims (2)

1. Mechanical ball input for the continuation of play on sports fields, in particular football and volleyball fields, which has a programmed logo module and 2 rotating, electrically driven rollers, whereby the mechanical sequence of the ball input - is electronically controlled via a programmed logo module ( 8 ), - by means of a cam drive ( 5 ) which guides the ball to 2 specially shaped, rotating rollers ( 1 and 2 ) with an adhesive coating, - is additionally surrounded by a protective cover/body ( 11 ), the opening flap ( 12 ) of which is also integrated in the program sequence of the logo module ( 8 )., - requires a ball circumference of at least 60 cm. 2. Ball input according to protection claim 1, - that by the controlled rotation of the cam ( 5 ), the ball is quickly and controlledly guided from its reservoir ( 7 ) to the rotating rollers ( 1 and 2 ), - whereby the trajectory, spin and range of the ball can be determined variably and precisely by generating different speeds on the drive motors of the rollers ( 3 and 4 ).