Spring type apparatus for projecting balls

Mechanical guns and projectors – Spring

Patent

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Details

124 41R, 124 36, 124 34, 273411, F41B 700

Patent

active

043455778

DESCRIPTION:

BRIEF SUMMARY
TECHNICAL FIELD

The present invention relates to an apparatus for automatic projecting balls, preferably footballs, which apparatus includes an impact device supported in a frame and provided to convey to a ball an impulse in a direction of projection for projection thereof from a position of projection in the frame, the frame being supported in a framework for movement around a vertical axis and a horizontal axis.
In training ball players, e.g. football players, it is in several occasions desirable to deliver a ball to a desired area of the field. Thus, in training of the goalkeeper and in training continued game in connection with kicks at goal (crosses) as well as corner kicks a player is all the time retained for kicking the ball. The effect of the training is highly dependent on the degree of accuracy this player can deliver the ball to the desired area of the field.


PRIOR ART

Prior art apparatus for projecting balls are described in British Pat. Nos. 1,363,146, 1,188,498 and 466,781.
These prior art apparatus for projecting balls all have the drawback that the direction of projection cannot be adjusted to any greater accuracy. Moreover, as soon as the direction of projection is to be changed an operator has to manually either move the entire apparatus or change an adjustment device for the direction of projection.


PURPOSE OF THE INVENTION

The purpose of the invention is to achieve an apparatus for automatic projecting balls, which apparatus with great accuracy permits projection of balls in sequence in different directions without requiring any intermediate, manual adjustment of the apparatus.
This purpose is achieved by means of an apparatus having the features mentioned in the introductory part and being distinguished in that first drive means is provided to rotate the frame around its vertical axis in a two-way movement over an adjustable angular arc in horizontal direction, that second drive means is provided for rotating said frame around the horizontal axis in a two-way movement over an adjustable angular arc in vertical direction.


BRIEF DESCRIPTION OF THE DRAWINGS

The invention is described in detail below with reference to the enclosed drawings illustrating preferred embodiments of an apparatus according to the invention.
FIG. 1 is a lateral view schematically illustrating a preferred embodiment of the apparatus of the invention having one lateral cover plate removed.
FIG. 2 is a top view schematically illustrating the apparatus of FIG. 1 with its top plate removed.
FIG. 3 shows the apparatus according to the invention placed in front of a football goal for the training of a goalkeeper.
FIG. 4 is a block diagram of the direction adjusting systems in the apparatus according to the invention.
FIG. 5 is a block diagram of a modified structure of the direction adjusting systems according to the invention.


PREFERRED EMBODIMENTS OF THE INVENTION AND INDUSTRIAL APPLICABILITY

The embodiment disclosed in FIGS. 1-3 of the apparatus according to the invention for projecting balls includes an impact device 10 which is provided to convey an impulse to a ball 13 for projecting said ball in a direction of projection Z determined by the direction of the impact device. The impact device is supported on a frame 11 which is movable around two mutually perpendicular axes X and Y, axis Y being substantially horizontal and axis X being substantially vertical.
The direction of projection Z for a ball which is projected by the impact means 10 is determined by a direction adjusting device 20 which is provided to rotate the impact device around either or both of said axes X and Y.
Frame 11 of the impact device together with the direction adjusting device 20 is supported by a framework 30 which includes longitudinal, lateral as well as vertical stiffening beams, several of which are not disclosed on the drawings. Preferably, framework 30 is supported on wheels 31 (FIG. 3) for facilitating simple movement and coarse aiming of the projection apparatus. Moreover, cover plates are fixed to the top and lower po

REFERENCES:
patent: 3602208 (1967-11-01), Huerlimann
patent: 3807379 (1974-04-01), Vodinh
patent: 3878828 (1975-04-01), Francesco
patent: 4122822 (1978-10-01), Scheiwiller

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