Device for training finger strength

Abstract

Device for training finger strength, comprising a load holder (6) and several handle elements (3), characterized in that the load holder (6) is coupled to the handle elements (3) via a hierarchical arrangement of movable rocker elements (2), wherein the rocker elements (2) are arranged in such a way that a load acting on the load holder (6) is mechanically distributed evenly onto the handle elements (3).

Description

1. Technical field: The invention relates to a training device for the hand muscles, in particular a device for increasing finger strength for sport climbers. 2. State of the art Conventional finger strength training devices, such as hangboards or simple portable grip bars, have the disadvantage that the load distribution across the individual fingers depends significantly on hand geometry and grip position. This often leads to overloading of the index and middle fingers, while the ring and little fingers remain under-challenged. Systems already exist that attempt to solve this problem through decoupled suspension (e.g., cord-based systems). However, these use flexible cord constructions to distribute the load. Disadvantages of the state of the art • Uneven load: With rigid handles, the shorter or weaker fingers (ring and little fingers) are often anatomically disadvantaged, leading to uneven training progress and an increased risk of injury. • Instability: Cord-based load distribution systems are inherently unstable. They tend to swing and tip, making precise force application difficult. Furthermore, the tangled cords make them unwieldy for transport and time-consuming to set up. Task 3 & Solution The invention is based on the objective of creating a device for training finger strength that: • guarantees an anatomically optimized, even load distribution on all fingers involved, • can stably replicate a variety of different grip situations (e.g., edges, pockets, pliers), • and offers high mechanical stability with a compact and portable design. This task is solved by a device with a ball-bearing system. In contrast to cord constructions, the ball-bearing mounting of the moving parts enables low-friction and, above all, tilt-resistant alignment of the handle elements under load. Advantages of the invention • Even load distribution: Thanks to mechanical decoupling via ball bearings, the system adjusts itself under load so that each finger bears its intended share of the load, regardless of finger length. • Stability and precision: The rigid mechanical guidance provided by the bearings prevents the uncontrolled oscillation that occurs with cord systems. • Handling: The integrated mechanics make the assembly significantly more compact, easier to transport (no tangling), and ready for immediate use. 4. Detailed description A preferred embodiment of the device according to the invention for training finger strength is explained in more detail below with reference to the accompanying drawings. Fig. 1 shows the device in an assembled isometric view, while Fig. 2 shows an exploded view of the individual components. The device comprises a total of seven different functional components arranged in a symmetrical assembly. The core technical element of the invention is the mechanical coupling between the load-bearing element and the handle elements via a hierarchical bearing structure. Structure and components The device consists of the following main components: • Four anatomically shaped grip elements (3) to individually accommodate the fingertips. • Two bearing housings (2) that act as intermediate elements (rockers). • A central support consisting of a front support (5) and a rear support (4). • Several ball bearings (1) that enable low-friction and tilt-resistant movement of the components relative to each other. • A load-bearing element (6) (e.g., designed as a cord or loop) through which the training load is introduced into the system. • A multitude of screws or bolts (7) that define the pivot points of the bearings and hold the assembly together. Function and load distribution The force acting on the load-bearing element (6) is first transferred to the central support (4, 5). Within this support, the two bearing housings (2) are pivotally mounted via ball bearings (1). Each of these bearing housings (2) in turn carries two of the handle elements (3) at its upper end, which are also mounted via ball bearings. This cascaded arrangement of the bearing points (1) makes the system act like a mechanical balance. As soon as fingers of different lengths or different forces act on the handle elements (3), the bearing housings (2) compensate for these differences by a balancing movement (tilting). This ensures that the load hanging from the load-bearing element (6) is distributed evenly across all four fingers at all times. The ball-bearing system (1, 2) guarantees a significantly higher torsional stiffness compared to conventional cord constructions and prevents uncontrolled breaking out or fluttering of the individual handle elements (3) during the load phase. Reference symbol list 1 Ball bearing 2 Bearing housing 3 Handle / Grip element 4 Rear bracket 5 Front bracket 6 Load attachment (e.g. cord or loop) 7 Screws / Connecting bolts

Claims

Device for training finger strength, comprising a load-bearing capacity (6) and several grip elements (3), characterized in that the load-bearing capacity (6) is coupled to the grip elements (3) via a hierarchical arrangement of movable rocker elements (2), wherein the rocker elements (2) are arranged such that a load acting on the load-bearing capacity (6) is mechanically distributed evenly onto the grip elements (3). Device according to claim 1, characterized in that the rocker elements (2) and / or the handle elements (3) are mounted by means of ball bearings (1). Device according to one of the preceding claims, characterized in that two primary rocker elements (2) are provided, each of which carries two handle elements (3) to distribute the load over a total of four fingers. Device according to one of the preceding claims, characterized in that the rocker elements (2) are mounted in a tilt-resistant manner within a central support consisting of a front support (5) and a rear support (4). Device according to one of the preceding claims, characterized in that the handle elements (3) are anatomically shaped to receive individual fingertips. Device according to one of the preceding claims, characterized in that the entire assembly is connected by means of screws or bolts (7) as axis points for the bearing points.

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