A treadmill has a treadmill frame and a treadmill belt movably mounted on the treadmill frame. An air space exists between the treadmill belt and a support surface on which the treadmill is placed at a rear of the treadmill belt. A disconnect switch is positioned to engage an object entering the air space. The disconnect switch is operatively connected to the treadmill motor so that the treadmill motor automatically shuts off when the disconnect switch is activated.

A system for a manual treadmill having a tread that rotates around a front axle and a rear axle and side rails on opposing sides of the tread includes a brake configured to slow rotation of at least one of the front axle or the rear axle, a controller, and a first presence sensor in communication with the controller, the first presence sensor positioned on a side rail and configured to detect a user on the side rail. The brake is not normally engaged during operation of the treadmill when the tread is moving and the first presence sensor does not detect the user on the side rail. The controller is configured to, in response to the first presence sensor subsequently detecting the user on the side rail, engage the brake.

A treadmill with a safety warning function includes a miming unit, a driving unit, a detection unit and a control unit. The running unit includes a driving roller and a running belt provided for a runner to stand thereon. The detection unit includes a camera arranged at a predefined height range on top of the running belt for photographing images. The control unit determines a height of the runner based on the images photographed. The safety monitoring method for the treadmill includes obtaining an image above the running belt and determining whether the height of the runner is greater than the predefined height. By determining whether the height of the runner is greater than the predefined height, it is able to determine whether the driving roller can be driven by the driving unit to rotate, thereby preventing the hazard of accidental activation by a child of insufficient height.

Controlling access to a stationary exercise machine. In one aspect of the disclosure, a method may include establishing one or more authorized users of a stationary exercise machine having one or more moveable members, automatically locking the one or more moveable members of the stationary exercise machine, and receiving a request to perform a workout on the stationary exercise machine. In response to the receiving of the request to perform the workout on the stationary exercise machine, the method may include automatically determining whether any of the one or more authorized users is proximate to the stationary exercise machine. In response to automatically determining that one of the one or more authorized users is proximate to the stationary exercise machine, the method may include automatically unlocking the one or more moveable members of the stationary exercise machine to enable the workout to be performed on the stationary exercise machine.

Deployable slackline systems are disclosed which can support a slackline at a desired height and nominal tension. The disclosed systems may maintain one or more slacklines and can adjust height and tension of individual slacklines while the slacklines are in use. The disclosed slackline systems are stowable; tensioning and termination assemblies of the slackline system can each fold into a compact housing having a height substantially less than a vertical range of motion of the slackline. The disclosed slackline systems can be implemented in aquatic or non-aquatic performance environments such as on cruise ships or other hospitality settings.

A system for a treadmill with a tread that rotates on front wheels supported on a front axle and rear wheels supported on a rear axle includes a locking mechanism. The locking mechanism comprises a first device associated with one of the front axle or the rear axle and configured to prevent rotation of respective front wheels or rear wheels in a first direction and a second device associated with another of the front axle or the rear axle and configured to prevent rotation of the respective front wheels or rear wheels in a second direction opposite the first direction. The system also includes a controller and a sensor configured to detect a user on the tread. The controller is configured to, in response to the sensor detecting no user on the manual treadmill, engage the locking mechanism to prevent movement of the front wheels and the rear wheels.

A carrying device with a built-in security system including a security unit 10 having components housed in an integral unit, where the components include a camera 1 with a light sensor 2; with a shatter proof clear cover 3 over the camera lens 16; a speed sensor 4; a distance sensor 9; a GPS tracker 8; a transponder 7 for sending and accepting digital data; a microcontroller 15, and a rechargeable power supply 5 in electrical communication with the microcontroller 15, the camera 1, the speed sensor 4, the distance sensor 9, the GPS tracker 8 and the transponder 7; to monitor the location and contents of the carrying device and to provide real time feedback to the user.

Methods and apparatus for authorizing use of a mat processing device are disclosed. The disclosed process requests and receives a public customer identifier. If the public identifier is not on a “required” list, the process authorizes a mat processing despite payment not yet being confirmed and no private information being. If the public customer identifier is recognized by the system, the process requests and receives a private customer identifier, even though the mat processing has already been authorized. If the private identifier is associated with the public identifier, the customer's account is debited for the mat processing. If the private identifier does not correspond to the public identifier, and optionally an additional user confirmation attempt fails, the public identifier is placed on the “required” list, so subsequent attempts will not receive a “free” mat processing.

An article of manufacture for providing an adjustable tee marker according to the present invention is an adjustable tee marker having a tee marker body having a front side, top side, and a rear side, a yardage display positioned on the front side of the tee marker body, the yardage display shows a plurality of numerical digits corresponding to a yardage distance from the adjustable tee marker to a specified location on golf course hole, a location name display positioned on the front side of the tee marker body, the location name display shows one of a plurality of changeable location names corresponding to the specified location on golf course hole, and an installation spike coupled to the tee marker body. A mechanism/winder accessible using a key may be inserted into the tee marker body. The mechanism/winder rotates when the key inserted into the tee marker body is rotated causing the location name display to change the changeable location name seen in the location name display.

Deployable slackline systems are disclosed which can support a slackline at a desired height and nominal tension. The disclosed systems may maintain one or more slacklines and can adjust height and tension of individual slacklines while the slacklines are in use. The disclosed slackline systems are stowable; tensioning and termination assemblies of the slackline system can each fold into a compact housing having a height substantially less than a vertical range of motion of the slackline. The disclosed slackline systems can be implemented in aquatic or non-aquatic performance environments such as on cruise ships or other hospitality settings.