A device for support and propulsion comprising a shaft, a spring element coupled to the shaft, and a swing arm coupled to the shaft and the spring element. A lower portion of the spring element comprises a ground interface, optionally comprising a wheel.

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.

Attachment for a pole, in particular for a trekking pole, cross-country ski pole, Nordic-walking pole, or Alpine ski pole, comprising a substantially cylindrical sleeve (3) which can be fastened to the bottom free end (25) of a pole shaft (1), comprising a blind hole (22) open towards the top to accommodate the bottom free end of the pole bar, and an interchangeable clement (2), which can be fastened to the sleeve in a detachable brut-fitting and force-fitting manner. The sleeve comprises a head region (4) and an adjoining body region (5) extending downwards, and an outer thread (6) on at least one axial section of the body region. The interchangeable element comprises a tip or a rolling surface on the bottom end (21) thereof, wherein the interchangeable element has an axial blind hole (15) open towards the top for accommodating the sleeve.

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.

The invention relates to a pole handle (1), in particular for trekking poles, Nordic walking poles, Alpine ski poles, or cross-country ski poles, comprising a handle head (2), a handle body (3), and a hook-like device (4) for securing a handling device. A movable, pivotal, or rotatable latching means (5) is arranged in the region of the hook-like device such that a loop-, ring-, or eye-shaped device, which is provided on the handling device and inserted into the hook-like device substantially from above, is fixed in the hook-like device in a self-latching manner. The hitching means is desiped in the form of a retaining lug which defines a constrained region (7) for the loop-, ring-, or eye-shaped device towards the bottom in the braced position. Additionally, a recess (8) is provided in the handle head and/or handle body from above, wherein a movably and/or rotatably mounted securing block (9) on or in which the engaging means is arranged is arranged in the recess.

The ground-contact device (1) includes a pole (2) provided with a handgrip (5), a pole strap (3) provided with a connecting element (7) intended to be fastened removably to the handgrip, and a locking element (11) mobile relative to the handgrip (5) between a locked position and an unlocked position, the locking element having a body (14) and a retaining element (25) connected to the body (14) and able to immobilize the connecting element relative to the handgrip when the locking element is in the locked position, the connecting element being free relative to the handgrip when the locking element is in the unlocked position, and a first retaining surface (19) connected to said body (14) by an elastic portion (22).

A pair of first and second ski poles that can be connected to each other. The first ski pole has a first shaft with a first hand-grip at an upper end thereof and a first basket near the lower end thereof. The second ski pole has a second shaft with a second hand-grip at an upper end thereof and a second basket near the lower end thereof. The first and second ski poles can be interconnected by engagement of the first and second baskets to each other and engagement of the first and second hand-grips to each other. The first hand grip is mounted to the first shaft via a spring for limited axial movement relative thereto, and engagement of the first and second hand-grips is maintained by a biased force provided by the spring.

The invention relates to a hand-retaining device (70) for securing to a pole handle (1), comprising an insert opening (71) for the hand, a first exit opening (72) for the back of the hand, and a second exit opening (73) for the thumb. The hand-retaining device according to the invention further has a first elastic strip (74) which is led between the thumb and the other fingers and on which a coupling element (79) is provided that can be secured in or on the pole handle in a removable mechanism in a self-latching manner. The invention further relates to a pole handle to which the handle loop according to the invention can be optimally secured.

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 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.