Abstract: The invention refers to the equipment of the training rink for floorball, manufacturing of exerciser structural element, applying concept of tennis racket stringing. Proposed design of subsidiary element for floorball rink arrangement characterized with that it is made as latticework formed by: two parallel end plates; several threaded rods as stiffening members; two elastic string structures disposed in two parallel planes, at that each of it presents one side of mentioned latticework and provided with: holes for fastening threaded rods which assure rigidity and load bearing capacity of the subsidiary element frame structure; holes for criss-cross stringing in two parallel planes and string fastening at mentioned end plates independently one from another.

Abstract: A pit cushion assembly of an automatic pinsetter is fitted with a pit cushion follower assembly that includes a cam and roller assembly that allows a pit cushion of a pin setting mechanism to move toward and away from a support arm on which the pit cushion is movably mounted without restricting a range of motion of the pit cushion away from the support arm. The cam is operative, upon movement of the pit cushion toward the support arm from an initial position thereof, to ride along the roller while driving the support arm to move. The cam is also operative to permit return movement of the pit cushion to the operative position thereof without restricting the range of pit cushion motion. The cam and roller-based follower assembly allows the pinsetter to operate more efficiently with less moving parts and with less maintenance requirements than with a traditional link-based follower assembly.

Abstract: A bowling alley return mechanism includes a horizontal ball return disposed between two adjacent lanes, a pair of side walls which define a chamber and a ball door or opening in one of the side walls. A generally crescent-shaped concave pivotally mounted cradle is disposed within the chamber and adjacent to the opening for receiving a bowling ball thereon. The mechanism also includes an optical sensor which is responsive to a portion of the bowling ball when the bowling ball is on the cradle. A bell crank and linkage rotates the cradle in response to a signal from the sensor. The mechanism also includes an exit door and a releasable locking assembly of the pin and groove type which prevents any flying pins from passing through the exit door. The locking assembly is responsive to an upper portion of a bowling ball when the ball is moved by the cradle to unlock the exit door and allow the ball to pass therethrough and into the horizontal ball return for propulsion to the opposite end of the alley.

Abstract: An ultimate bowling simulator is provided which consists of a miniature bowling alley, with a pit unit located behind the alley. A structure is for elevating the alley in an upwardly tilted rearward gravity feed position with respect to the pit unit. Ten small pins are set up in a triangular rack formation directly in front of the pit unit. A plurality of small bowling balls are provided, so that each can be rolled down the alley to knock down the pins. A ball return extends from one side of the it unit. A component within the pit unit is for separating the pins from the bowling balls, so that the bowling balls can go into the ball return, while the pins will stay in the pit unit.