An autonomous vehicle executes a teaching travel mode to store a route traveled by an operator's manual operation and an autonomous travel mode to autonomously travel on a planned traveling route. A ball collection route travel schedule creator creates a planned traveling route from a teaching route obtained by the teaching travel mode. A difference calculator calculates differences in position coordinates and posture angles between an arbitrary point designated by an operator and a current position. A display displays the differences calculated by the difference calculator.

Methods, systems, and apparatus, including computer programs encoded on computer storage media, coordinate dynamic adjustments of a trailer based in part on a user profile associated with a user physically present at the trailer and an activity profile associated with an activity selected to be performed at the trailer. A dynamic adjustment may modify a tilt of a lower surface of the trailer. A dynamic adjustment may modify a dimension(s) of the trailer based in part on a detected object(s). Various dynamic adjustments may occur concurrently, individually and/or sequentially. The trailer may be a moveable trailer for temporary attachment with a vehicle.

A ball return system for returning balls shot at a target to a user of the ball return system includes an ejector adapted to accelerate balls out of the ball return system toward a target destination. The ball return system also includes a mast disposed on a base on which the ejector is disposed. The ball return system further includes a collapsible net support adapted to transition between a collapsed state and an expanded state. The collapsible net support is connected to the mast by a joint that enables the collapsible net support to transition between: a first orientation in which a length of the collapsible net support is aligned with a length of the mast, and a second orientation in which the collapsible support net is stacked on top of the ejector.

The invention is that of a lacrosse ball collection apparatus fabricated from materials such as plastics, metals and fabrics. The apparatus comprises a fabric which when in its open position forms a substantially triangular horizontal surface capable of fitting inside a lacrosse goal. When lacrosse balls are shot into the goal, they collect on the fabric. The apparatus is foldable at a front joint and comprises a spout located behind the front joint and in close proximity thereto, such that the apparatus may be used to carry the balls to a collection receptacle, where they may be poured out of the spout into the receptacle for reuse. The apparatus is further foldable at two side joints such that an apical joint is foldable toward the front joint and two front member segments are foldable inward to render the apparatus in a compact, closed position suitable for storage in small spaces.

The present invention proposes a court, which is a half- or full-court in which ball sports, such as soccer (penalty kicks), foot volleyball, volleyball, and basketball (33 basketball), can be played. The court allows balls to be automatically and rapidly supplied in the case where it takes time to resume a game, such as a case where a game is replayed or a case where a ball is out according to the characteristics of each type of sport, or in the case where serve-reception practice is required, and also allows balls to be naturally collected and lifted because the court is inclined and allows the balls to be automatically classified according to the types of balls and to be supplied to the court.

Provided is a screen badminton practice device enabling badminton, even while alone, to be played like a real game or practiced, and enabling shuttlecocks to be automatically collected and loaded, the screen badminton practice device comprising: a screen provided at one side of a practice location; a beam projector for projecting an image on the screen; a shuttlecock shooting part, which is provided at the rear of the screen, has a storage container, provided at the upper part thereof, for storing a plurality of shuttlecocks, and withdraws and shoots the shuttlecocks stored in the storage container; and a shuttlecock collection part collecting the shuttlecocks, which fall on the lower part of the practice location, so as to fill the storage container with the same.

The invention is that of a lacrosse ball collection apparatus fabricated from materials such as plastics, metals and fabrics. The apparatus comprises a fabric which when in its open position forms a substantially triangular horizontal surface capable of fitting inside a lacrosse goal. When lacrosse balls are shot into the goal, they collect on the fabric. The apparatus is foldable at a front joint and comprises a spout located behind the front joint and in close proximity thereto, such that the apparatus may be used to carry the balls to a collection receptacle, where they may be poured out of the spout into the receptacle for reuse. The apparatus is further foldable at two side joints such that an apical joint is foldable toward the front joint and two front member segments are foldable inward to render the apparatus in a compact, closed position suitable for storage in small spaces.

Embodiments of the present disclosure may include a system for returning a golf ball to a golfer playing simulated golf or hitting a golf ball towards any vertical surface or hitting it into a net or such, the system including a ball catcher tray assembly adapted to receive a golf ball after the golfer has hit the ball against an impact surface, the ball catcher tray optionally including ball catcher tray sections connected together. Embodiments may also include a golf ball launcher adapted to receive the golf ball as it rolls from the ball catcher tray assembly. Embodiments may also include a modular track system comprised of interconnected track sections, at least one of which may be connected to the golf ball launcher and may be adapted to receive the golf ball from the golf ball launcher as the ball may be propelled toward the golfer.

A method of increasing a total number of players configured to hit a ball into a single field is disclosed. The method comprises providing a substantially circular shaped enclosed field, a structure housing a plurality of bays positioned at a midpoint of the substantially circular shaped enclosed field, and a plurality of mock pitching mounds. The plurality of mock pitching mounds is disposed around the structure and in front of each bay of the plurality of bays thereby each bay emulates the look and feel of a baseball diamond from the perspective of each of the players and bays. Each bay is convex shaped being disposed on the outer perimeter of the substantially circular structure to provide the plurality of bays each emulating the home plate and batter's boxes of a baseball field.

The invention relates to a device (1) for returning balls (24) in a playing arrangement (20) of a ball sport, having a goal wall (21), wherein a space (22) in front of the goal wall (21) and a space (23) behind the goal wall (21) are provided, wherein an inclined plane (3) is provided in the space (23) behind the goal wall (21), wherein the inclined plane (3) leads to a receiving position (4) of a motor-actuated lifting apparatus (5) for one ball (24) at a time, and having a dispensing mechanism, which, in a dispensing position of the lifting apparatus (5), acts on the ball (24) in such a way that the ball (24) can be dispensed into the space (22) in front of the goal wall (21). The invention further relates to a motor-actuatable lifting apparatus (5) for one ball (24) at a time for use in a device (1) for returning balls (24) and to a method for returning balls (24).