A length adjustment device according to an exemplary embodiment forms a latching groove on an interior circumference of a first extension pole, which is configured to be separately assembled, and there is an effect that a manufacturing becomes easy and a mass production is possible.

The present disclosure presents a multi-purpose pole grip design in a generally conical shape to resist a user's hand from sliding off it while under axial loading. The present disclosure provides a more ergonomic and comfortable handle that requires less grip strength thus making it a prime design for poles used in sports like skiing and hiking and general walking sticks, including canes.

A pole comprising a pole handle and a pole tip, with at least two tube portions located therebetween, which in an assembled state of the pole are connected to one another by means of insertion connections aligned along a longitudinal pole axis A. At least one of the plug connections is realized on a second tube portion by way of a form-fit and/or force-fit locking device, wherein the second tube portion has a smaller the same outer diameter than the inner diameter of a first tube portion, and which can be inserted into the first tube portion, and which can be fixed in the relative axial position by means of the form-fit locking device. On at least one of the plug connections, a tubular sleeve having a clamping element in a receiving groove is arranged between the tubular sleeve and the lower end of the first tubular portion.

The present invention relates to a sport stick that measures the driving force generated by the upper body, which is applied to the ground through poles during the natural performance of nordic walking or any other sport, where poles are used to drive/propel the body forward. An inclination sensor along with a pole length sensor (pole length constant in a fixed length pole) has been placed into the pole for the achievement of the most suitable biomechanical performance, i.e. proper technique. The sport pole uses the Global Positioning System along with a topographical map to ensure that the slope of terrain does not affect the inclination sensor measurements. All collected data is analyzed by a control center, wherein correct usage models have been saved along with a collection of the user's anthropometric and fitness levels.

Ski pole accessories are described herein. Ski pole accessories can include a releasable ski pole basket system, a ski pole clamp system, and a releasable ski pole strap system. A ski pole basket system can include a ski pole ferrule and a ski pole basket having a slot therethrough that receives and secures the ski pole ferrule. A ski pole clamp system can include a rubber mold with a first and a second thickness to secure the ski pole clamp to an upper component and a lower component of a ski pole. A releasable ski pole strap system can include a pole mount including a jaw that engages a strap attachment member, where operation of the jaw disengages the strap attachment member from the ski pole mount.

A power and stabilizing apparatus for rolling or sliding-based recreational activities is disclosed. The apparatus may include a shafted body coupled to a biased member. The biased member may be a bowed biased member or any other biased member configured to store and release energy during use of the apparatus. The apparatus may also include a shoe coupled to the biased member opposite the body, the shoe having a traction element coupled thereto. The body may be a shafted telescoping body configured to lock in an extended position and lock in a retracted position. The body may be coupled to the bowed biased member with a coupling member having a first leg coupled to the body and a second leg coupled to the bowed biased member.

The invention relates to a folding pole (1), normally comprising four pipe sections (7-9), wherein the pipe sections (7-9) are connected to each other by means of plug-in connections while aligned along the pole axis (32) in the assembled state of the folding pole (1), and normally only three pipe sections (8, 8, 9) are still connected to each other by means of a movable connecting element (16) in the folded state, and wherein a pole handle (2) is arranged on a top pipe section (7) and a pole tip (23) is arranged on a bottom pipe section (9). According to the invention, at least one of the plug-in connections is realized by means of an external clamping mechanism (10), wherein the clamping mechanism (10) is fastened to a first pipe section (7), and wherein a second pipe section (8), which has an outside diameter smaller than or nearly equal to the inside diameter of the first pipe section (7), and which is supported in the first pipe section (7) so as to be movable itself, can be fastened in the relative axial position by the external clamping mechanism (10). The further plug-in connections are designed as pure plug-in connections, wherein pipe sections (8, 8, 9) are fastened only an axial direction in the connected state. The pipe sections (7-9) are connected to each other by means of at least one tension cable (16), which is fastened to the bottom pipe section (9) and to the top pipe section (7) and which is arranged so as to pass through the interior (31) of the at least two middle pipe sections (8, 8). The folding pole (1) is designed in such a way that the folding pole can be transferred from the folded state to the assembled state by connecting the further plug-in connections, and then, with the external clamping mechanism (10) released, pulling the second pipe section (8) out of the first pipe section (7) until the tension cable (16) is under tension, and fastening the external clamping mechanism (10).

A power and stabilizing apparatus for rolling or sliding-based recreational activities is disclosed. The apparatus may include a shafted body coupled to a biased member. The biased member may be a bowed biased member or any other biased member configured to store and release energy during use of the apparatus. The apparatus may also include a shoe coupled to the biased member opposite the body, the shoe having a traction element coupled thereto. The body may be a shafted telescoping body configured to lock in an extended position and lock in a retracted position. The body may be coupled to the bowed biased member with a coupling member having a first leg coupled to the body and a second leg coupled to the bowed biased member.

A watersports paddle includes an elongated handle body having a first material, a biased member having a second material more flexible than the first material such that the biased member is more flexible than the elongated handle body, and a paddle blade coupled to the biased member opposite the elongated handle body. The biased member deforms when a force is applied to the biased member with the elongated handle body by pulling the paddle blade through water and reforms when the force is not applied to the biased member by the elongated handle body to store and release energy during use of the watersports paddle. The biased member may be a substantially planar leaf spring or a bowed leaf spring.

A releasable lock assembly for use with a collapsible pole assembly having a first shaft section slidably secured to a second shaft section includes a locking mechanism configured to selectively lock the first and second shaft sections in an extended position. The releasable lock assembly further includes a stop assembly having an elongated member having first and second ends, wherein the first end is secured to one of the first and second shaft sections and the second end secured to the other of the first and second shaft sections. The stop assembly further comprises a stop assembly biasing member configured to urge the first and second shaft sections into a collapsed position.