Modular gym equipment

Abstract

Gym equipment for performing exercises by a user, comprising a beam and legs for ground support in a condition where the beam is at least partially spaced from the ground. The gym equipment is a modular device in which the legs are selectable from a set of mutually interchangeable legs. The set of legs includes various types of legs for supporting the beam relative to the ground with different degrees of instability.

Description

[0001] Title: " MODULAR GYM EQUIPMENT

[0002] DESCRIPTION

[0003] Technical Field

[0004] The present invention relates to a modular gym equipment according to the features of the preamble of claim 1.

[0005] Prior Art

[0006] In the field of tools for balance training, balance boards are known. These are small devices consisting of a rigid, walkable surface forming a circular or rectangular board, where the surface is made of plastic or wood. Underneath the board, a support is attached. This support, typically made of plastic, wood, or inflatable rubber and shaped like a semi-sphere with a specific rolling radius, keeps the board raised a few centimeters above the ground, creating a condition of instability, primarily in the form of lateral and antero-posterior oscillations of the board. These tools are used for static balance training, mainly in mono and bipodal stances on surfaces that channel instability along specific planes.

[0007] Other small tools are also known, which include walkable surfaces made of soft and / or deformable materials, such as rectangular mats made of soft and resilient foam or inflatable air rubber cushions. These tools are also used for static balance training, both in mono and bipodal stances. In this case, the surfaces create instability due to the yielding nature of their material.

[0008] In the field of gym equipment for balance training, larger equipmentes such as balance beam and rocking board are also known, which are designed to be lifted from the ground using support feet. Balance beams and rocking boards are typically made of wood, they can span several meters in length. The beam has a single flat walking surface, generally 100 mm wide, while the board is equipped with two flat walking surfaces, one flat and one slightly rounded, 50 mm wide. These equipment are primarily used for dynamic balance training on surfaces with stable but narrow translocation areas. Additionally, variations of balance beams are known, featuring variable widths of the walkable surface, high-density foam construction, and without ground supports.

[0009] In the field of gym equipment, balance beams or rocking boards are also known, supported by a ground support or central trestle, which is fixed at the center of the beam or board. Users ascend on the inclined side of the beam and descend on the opposite side upon reaching the highest point aligned with the central support and causing an antero-posterior oscillation of the beam or board around a fulcrum point on the central support. These tools are employed for dynamic balance training on sloping surfaces, in which an instability component is introduced through oscillations of the beam around its transverse axis.

[0010] In the field of sports equipment, self-supporting structures are known, consisting of an oblong frame to which a strap, ranging from 25 to 50 mm in width and made of synthetic fibers, is attached and tensioned at its ends. This equipment enables the practice of the indoor activity known as slacklining, which is typically an outdoor sport with various disciplines that, in its most basic form, involves maintaining balance and walking on a tensioned strap between two anchor points such as trees or poles. Self- supporting slackline structures are used for training both static and dynamic balance and serve as a complementary training tool for balance in numerous competitive sports. Specifically, the user's balance is challenged not only by lateral shifts but also by vertical shifts in the strap.

[0011] In the field of gym equipment, horizontal bars are known, incorporated into structures for calisthenics activities, with a diameter of 33 mm. Additionally, horizontal bars are common in most gyms and fitness centers, either wall-mounted or integrated into multifunctional structures, with diameters generally ranging from 25 mm to 35 mm. These bars are typically positioned at a height of 2-2.5 meters. The practice of bar exercises, in its most basic form, involves hanging under the bar in either complete or partial suspension with the hands, performing core-strengthening exercises by raising the lower limbs while the user remains suspended by gripping the bar, executing pull- up exercises, and performing bar muscle-ups that is climbing up onto the bar, elevating the user's center of gravity slightly above the bar.

[0012] Additionally, known are gym equipment including steps, usually made of rigid plastic, and sturdy plyometric boxes, commonly known as plyoboxes, usually made of wood, of various sizes with three levels of height from the ground, used in gyms and fitness centers for exercises such as step-ups, step-downs, and jumping.

[0013] The document KR 2020 / 0143103 A discloses a portable balance board that allows for selective and stable movements at various angles by placing a foot or an arm on it. In particular, the described board has dimensions suitable for receiving a user's foot or arm and supporting their weight. An exercise selector is then coupled to the ends of the board in such a way as to choose a type of exercise and select an incline angle. The exercise selector is embodied in two lateral elements, snap-connectable to respective seats on the board, designed to keep the board elevated above the ground at different angles.

[0014] The document EP 0810007 A2 discloses an equipment for abdominal muscle training that includes a support frame shaped in a triangle relative to the ground with two arms, each attached to a ground support element. The equipment also comprises a user support base fixed to one of the two arms of the frame. Each ground support element is attached to a respective oscillation element, which can take the form of a cup structure, a curved element, or a single curved plate constrained to both ground support elements, capable of allowing the structure to oscillate in the vertical direction.

[0015] The document US 2018 / 117389 Al describes a device for balance training that includes a footplate and at least one support element coupled to a respective base and constrained to the footplate. The number of support elements and respective bases, as well as their arrangement, is adaptable to different configurations for performing various exercises. For example, the document describes a swinging mode with a centrally positioned support element relative to the footplate, and a mode with a ramplike support element for exercising the leg muscles.

[0016] The document WO 2022 / 157242 Al shows an equipment for simulating the behavior of a slackline, comprising a curved board with upward concavity that extends between two raised ends relative to the central portion. The equipment also includes a strap tensioned between the two ends of the board, causing it to be elevated relative to the central portion of the board and parallel to the ground. The document US 2010 / 167886 Al describes an exercise platform comprising a plate usable by the user, equipped with cavities on the underside for securing support elements. The platform allows for different combinations of attaching support elements to the plate to replicate various exercises. For example, the platform may include two support elements with flat support bases fixed at opposite ends of the plate. Alternatively, the two support elements may have different support bases, such as one flat and one curved, to replicate different balance conditions for the user's feet. Alternatively, the platform may include a support element with a curved support base positioned at the center of the plate in a swinging mode. Still alternatively, the platform may include a single support element with a flat support base fixed at one end of the plate to replicate a ramp mode.

[0017] Problems with the Prior Art

[0018] The human body's balance system represents one of the most significant obstacles to achieving optimal performance in both daily life and sports. Yet, this obstacle is almost universally underestimated by the fitness industry, which predominantly focuses on strength development, thereby overlooking the development of coordinative abilities determined by movement control processes of the nervous system. However, both are necessary for the development and maintenance of an individual's physical capabilities. The balance system tends to suffer damage or weakening due to incorrect training, poor movement habits, or simply disuse in environments like urban settings with regular and less complex surfaces that fail to sufficiently stimulate the balance system. Even minor alterations in balance capacity can have a profound impact on the entire body, leading to a decline in athletic performance, decreased strength, speed, and coordination, worsened flexibility, deteriorating posture, pain, general fatigue, visual disturbances, and anxiety issues. The brain controls the body's balance through two modes, the righting reflex, which helps the body maintain balance on stable surfaces, and the balance reflex, which aids in maintaining balance on moving surfaces. These two types of reflexes are not interchangeable or transferable; for example, an expert gymnast with balance on the beam, which is stable, does not automatically become skilled in a sport like surfing that requires balancing on an unstable surface, and vice versa. The gym equipment of the prior art is not suitable for maintaining and developing a real balance capability that is useful in both daily life and sports. More precisely:

[0019] - balance boards have only one training surface and allow only static balance exercises, making them unsuitable for training the righting reflex and, regarding the balance reflex, they are suitable for training with only one level of instability, thus lacking gradual and measurable 'load' progression. Similar considerations apply to balance mats and cushions;

[0020] - the balance beam has only one training surface, does not train the balance reflex, trains the righting reflex but lacks gradual and measurable load progression except for height and only in some cases; it allows training balance while supported on the beam but is not designed to train balance in suspension underneath or climbing above the beam;

[0021] - the rocking board, a narrower balance beam, has only two training surfaces, trains the righting reflex, does not train the balance reflex, or only partially do so if it is also a rocking beam, it accommodates only certain incline and elevation configurations and is not designed to train balance in suspension underneath or for climbing above the beam;

[0022] - The self-supporting slackline has only one training surface consisting of the strap, does not train the righting reflex, trains the balance reflex but lacks anteroposterior oscillations, it is not designed to train balance in suspension underneath or for climbing above the slackline.

[0023] Furthermore, the described solutions involve balance training without the possibility of progressively varying the difficulty conditions of the training surface, such as transitioning between different surfaces like rough and smooth, between flat surfaces of varying widths, between round surfaces of different diameters, or between horizontal and inclined surfaces, or between stable and unstable surfaces, or between unstable surfaces with different degrees of instability.

[0024] The bar for suspension and climbing movements, found in gyms and fitness centers, does not allow for a progressive and complete training because it does not involve using other parts of the body besides the hands to hang underneath the bar, it does not allow for transitioning under or climbing over the bar using climbing techniques other than bar muscle ups, it involves the use of only one type of surface, typically tubular around 30 mm in diameter, does not introduce surface instability conditions, does not include surface inclination conditions, and may inhibit the user due to the fear of falling, as it is generally placed at a height of 2-2.5 meters

[0025] In summary, solutions based on the prior art generally involve an equipment suitable for performing only a limited range of exercises, typically on one or two training surfaces that lack a gradual and measurable progression in load intensity in the form of increasing difficulty due to progressively challenging surfaces and, consequently, for a gym that aims to enable users to perform a greater variety of exercises, this necessitates the provision of a large number of gym equipment, leading to equipment costs and the need for dedicated spaces to store the gym equipment when not in use.

[0026] Additionally, solutions based on the prior art are unable to facilitate essential movement training under unstable conditions, which are vital for the development and maintenance of the individual's optimal physical condition.

[0027] Summary of the Invention

[0028] The purpose of the present invention is to provide a modular gym equipment that is configurable across different operating modes based on the type of exercises a user of the gym equipment needs to perform. In particular, one of the objectives of the present invention is to provide a modular gym equipment for the development of strength, balance, coordination, and motor control through the training of specific movements essential for the proper functioning of the human body, but generally overlooked by the fitness industry.

[0029] Specifically, the solution according to the present invention aims to enable the user to perform different positions and gaits on complex surfaces, to jump, climb, and transition from one specific position or movement to another. These types of movements are essential movements that the user experienced and learned in their childhood without any formal instruction, acquiring individual motor experience that however he has forgotten as an adult. It is important to note that our morphology, anatomy, and physiology have been shaped over millions of years, thanks also to these movements that are part of the motor heritage of our species, yet, they have gradually been abandoned due to the conveniences of modern living. Progress, with its conveniences, gives the illusion that we can live and maintain our health without engaging in the natural motor activities inherent to our species. Another goal of the inventive gym equipment is, therefore, to allow for efficient and healthy maintenance of the body, preserving and training the functions that have brought the human body to its current level of development but are excessively neglected in modern society.

[0030] The objective is achieved through the features of the main claim. The sub-claims represent advantageous solutions. Advantages of the Invention

[0031] The solution in accordance with the present invention, through the significant creative contribution whose effect constitutes an immediate and non-negligible technical advancement, presents various advantages.

[0032] The modular gym equipment according to the present invention is advantageous as it allows training, with a single configurable equipment, for various movements such as different gaits on challenging surfaces, jumps, and climbs.

[0033] This is also advantageous from a cost perspective, for example, for a gym that, with a single gym equipment, can offer users the opportunity to perform numerous types of exercises without the need to purchase a large number of different types of equipment.

[0034] Advantageously, the high configurability of the modular gym equipment makes it suitable for various motor skills applications, for the development of skills such as different gaits, jumps, climbs, and is suitable for sports training, abdominal strengthening, injury prevention in sports, motor recovery, walking rehabilitation, and fall prevention

[0035] Advantageously, the solution in accordance with the present invention allows for a gradual and progressive training program on a wide variety of training surfaces, both with stable balance and with different types of unstable balance characterized by lateral oscillations, antero-posterior oscillations, vertical and lateral oscillations. Additionally advantageous, the modularity of the solution according to the present invention allows for the flexible combination of various training surfaces with different types of stable or unstable balance conditions, including lateral, antero-posterior, vertical and lateral oscillations, achieving a very high number of configurations, which would not be possible to achieve with solutions from the prior art.

[0036] Advantageously, the solution in accordance with the present invention allows for a wide range of positions, such as standing, lying down, sitting, squatting, lunging, kneeling, and hinging positions and a broad range of movements, including crawling on hands and knees, moving on all fours, moving upright, shuffling, getting up and down, prone crawling, reversing, stepping upward or downward, jumping forward, upward, or downward, vaulting, hanging, traversing underneath the surface, and climbing.

[0037] Furthermore, advantageously, the solution in accordance with the present invention also allows for transitions between the mentioned positions and movements, the transitions can occur within the same movement category, such as in the case of gaits transitioning from a sitting position to an upright stance, or from one movement category to another, especially from a climbing movement to a gait, and vice versa, or from a walking movement to a jumping one, and vice versa.

[0038] Thanks to its high configurability, the gym equipment allows for various types of gaits, particularly barefoot walking to restore normal lower limb functionality, specifically by strengthening the feet with overall positive effects on strength, posture, balance, coordination, and motor control. Gait movements on challenging surfaces, as well as jumping and climbing movements, are natural actions that are always contextual, meaning they depend on the environment, especially the surfaces on which they are performed. The environment in which we move influences how we navigate and dictates those tiny but extremely important adjustments required to adapt to the context. To be strong and coordinated anytime and anywhere, not limited to practice in the gym or on the field, it is essential to enhance this adaptive capacity, the ability to adjust to constantly changing environments and surfaces that require body movement. Natural environments can provide an extraordinary variety of irregular, angled, elevated, unstable surfaces, etc. These features are essential to achieve high levels of adaptability crucial for our well-being. In contrast, urban environments are largely made up of regular, stable, and predictable surfaces that inadequately stimulate an individual's adaptability. The lack of movement variety performed by the foot in modern society has negative effects on balance, stability, strength, coordination, and motor control, contributing to an increased incidence of injuries. Feet are our foundations and have evolved to adapt to any type of terrestrial surface.

[0039] In more detail, gait positions and movements practiced on the gym equipment reactivate sensory responses at the level of the plantar receptors, rebalance the distribution of body weight and loading points, increase the flexibility of the foot and toes, enhance the gripping and pushing capacity of the toes, strengthen the propulsive force of the arch, increase the kinetic absorption capacity of the arch, enhance the length, strength, and power of the Achilles tendon and calf muscles, restore the correct position of the foot, ankle, knee, hip, and spine joints, promoting proper posture, improve active joint mobility, i.e., flexibility plus strength and neurological control, especially in the ankles, knees, and hips, enhance active joint stability, i.e., the ability to control joint position or movement, particularly in the ankles, knees, hips, and shoulders, and strengthen the core section of the body.

[0040] In more detail, the jumping movements practiced on the gym equipment allow for the restoration of normal lower limb functionality, particularly by strengthening and enhancing the legs with overall positive effects on strength, balance, coordination, and motor control. The ability to jump and, in particular, the ability to land is an essential skill, evolved to enable our species to move agilely in challenging and complex environments. Our legs can be likened to two large springs. An often-overlooked aspect in contemporary motor practice, which focuses almost exclusively on concentric muscle work, is the maintenance and development of the legs' deceleration capacity, i.e., the ability to dissipate impact forces with the ground, aspect of paramount importance for the overall health of the lower limbs and the prevention of joint injuries, especially at the ankle and knee.

[0041] In more detail, the climbing movements practiced on the gym equipment allow for the restoration of normal functionality in the upper limbs, particularly by strengthening hands, arms, and shoulders with overall positive effects on strength, posture, balance, coordination, and motor control, fortify and enhance all muscles of the upper limb and shoulder, strengthen the anterior and posterior muscles of the trunk, and especially, with appropriate exercises, the muscles of the core section of the body, through suitable exercises, they stimulate the vestibular system, improving balance and spatial orientation, positively impact the shoulder girdle joint and scapulothoracic joint, preventing sub-acromial impingement syndrome, reinforce hand grip, contribute to maintaining proper postural alignment, keep the contractile tissues of the front part of the trunk at an appropriate length, and allow for loading the joints not through gravity- induced compression but through tensioning due to joint suspension and surrounding soft tissues.

[0042] BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The following is a description of an exemplary embodiment with reference to the attached drawings, to be considered as a non-limiting example of the present invention in which:

[0044] - Fig. 1 represents an exploded perspective view of the modular gym equipment according to the present invention;

[0045] - Fig. 2 represents a perspective view of one of the supports of the modular gym equipment of Fig. 1;

[0046] - Fig. 3 represents an enlargement of the portion indicated by P in Fig. 2;

[0047] - Fig. 4 represents a perspective view of the detail of one of the components of the modular gym equipment of Fig. 1;

[0048] - Fig. 5 represents a plan view of the detail of the component of Fig. 4; - Fig. 6 represents a sectional perspective view of the detail illustrating the mutual coupling between two components of the modular gym equipment of Fig. 1;

[0049] - Fig. 7 represents a perspective view of the detail illustrating the mutual coupling between two components of the modular gym equipment of Fig. 1;

[0050] - Fig. 8 represents a plan view of one of the supports of the modular gym equipment of Fig. 1;

[0051] - Fig. 9 represents a front perspective view of the support of Fig. 8;

[0052] - Fig. 10 represents a bottom perspective view of the support of Fig. 8;

[0053] - Fig. 11 represents a perspective view of a possible configuration of the gym equipment of Fig. 1, in combination with the support of Fig. 8;

[0054] - Fig. 12 represents a three-quarter upper perspective view of one of the supports of the modular gym equipment of Fig. 1;

[0055] - Fig. 13 represents a three-quarter lower perspective view of the support of Fig. 12;

[0056] - Fig. 14 represents an exploded perspective view of the support of Fig. 12;

[0057] - Fig. 15 represents a perspective view of a possible configuration of the gym equipment of Fig. 1, in combination with the support of Fig. 12;

[0058] - Fig. 16 and Fig. 17 represent perspective views of a pair of supports of the modular gym equipment of Fig. 1 for use in combination with each other;

[0059] - Fig. 18 represents a perspective view of a possible configuration of the gym equipment of Fig. 1, in combination with the pair of supports of Fig. 16 and Fig. 17; - Fig. 19 represents a perspective view of a possible configuration of the gym equipment of Fig. 1, in combination with the support of Fig. 2;

[0060] - Fig. 20 represents a perspective view of possible configurations of the gym equipment of Fig. 1, for combination with a series of accessories;

[0061] - Fig. 21 depicts a perspective view of one of the possible configurations of the gym equipment of Fig. 1, in combination with some of the accessories in the accessory series;

[0062] - Fig. 22 represents a perspective view of one of the possible configurations of the gym equipment of Fig. 1, in combination with other accessories of the accessory series;

[0063] - Fig. 23 depicts a perspective view of one of the possible configurations of the gym equipment of Fig. 1, in combination with additional accessories of the accessory series;

[0064] - Fig. 24 represents a perspective view of one of the possible configurations of the gym equipment of Fig. 1, in combination with accessories of the accessory series;

[0065] - Fig. 25 depicts a perspective view of one of the possible configurations of the gym equipment of Fig. 1, in combination with an over-elevation element;

[0066] - Fig. 26 represents a detailed perspective view of a portion of the support of Fig. 8;

[0067] - Fig. 27 represents a perspective view illustrating an independent usage mode of one of the accessories; - Fig. 28 depicts a perspective view illustrating an independent usage mode of one of the accessories with an over-elevation element

[0068] - Fig. 29 represents a perspective view illustrating a mode of use for the inventive gym equipment with over-elevation elements;

[0069] - Fig. 30 represents a perspective view illustrating a mode of use for the inventive gym equipment with an over-elevation element;

[0070] - Fig. 31 and Fig. 32 represent sectional perspective views illustrating a fastening screw storage system for the accessories.

[0071] DETAILED DESCRIPTION

[0072] The present invention relates to (Fig. 1, Fig. 11, Fig. 15, Fig. 18, Fig. 19, Fig.

[0073] 20, Fig. 21, Fig. 22, Fig. 23, Fig. 24) a modular gym equipment 10 that can be configured by choosing from different operating modes based on the type of exercises a user of the gym equipment 10 needs to perform and the level of difficulty to which the user is subjected for the same exercise performed.

[0074] In particular (Fig. 1), the gym equipment 10 is composed of various combinable elements, including a beam 6, a pair of flat first supports 1, a pair of semilunar second supports 2, a pair of strap 43 supports consisting of a third support 3 and a fourth support 4, and a fifth trestle support 5. The gym equipment 10 may further include (Fig. 20, Fig.

[0075] 21, Fig. 22, Fig. 23, Fig. 24) a series of accessories 46 for mounting on the beam 6 or for independent use (Fig. 27, Fig. 28) relative to the beam 6, wherein the series of accessories 46 comprises elements defining different operating surfaces for the execution of various types of exercises or variations of the same exercise with different difficulty levels. In practice, as will be explained, the training surface can be constituted by a smooth first side 61 of the beam, but the first side 61 includes an anchoring system for anchoring one or more accessories selected from a series of accessories 46, where each accessory constitutes an element for modifying the training characteristics of the training surface of the first side 61 of the beam 6.

[0076] Advantageously, therefore, the modularity of the gym equipment 10 according to the present invention allows for the flexible combination of a variety of training surfaces, through the series of accessories 46, with different types of stable balance conditions using the flat first supports 1, or unstable conditions, including lateral oscillations using the second supports 2, anteroposterior oscillations using the fifth support 5. Additionally, there is the possibility of using another type of unstable balance condition through the pair 3, 4 of strap 43 supports, which produce not only lateral but also vertical oscillations. In this way, it is possible to achieve a very high number of configurations that allow for programming a gradual and progressive training.

[0077] The beam 6 is (Fig. 1, Fig. 4, Fig. 5) an element with an oblong shape extending in length along a longitudinal axis 58. The beam 6, particularly thanks to the first side 61, is capable of serving both as a support or suspension base for performing exercises and as a mounting structure for the accessories 47, 48, 49 of the series of accessories 46. For example, and without limitation for the purposes of the present invention, the beam 6 may have a length ranging from 2 to 4 meters, such as 2 meters, 2.5 meters, 3 meters, 3.5 meters, 4 meters. However, shorter or longer lengths than those indicated are not excluded, as the length is not an essential element for the purposes of the present invention. Regarding lengths shorter than those indicated, they are acceptable although they may reduce the number of practicable exercises, especially those that require moving along the beam 6 above or below it. The beam 6 can be made as a single oblong element or as the mutual union of two or more sub-oblong elements that are mutually fixable to each other by means of known fastening means, both releasable and fixed, such as screws, bolts, rivets, or similar, or systems with mutual interlocking. For example, the beam 6 can be made as the mutual union of two or three or four sub-oblong elements. The solution that provides the beam 6 in the form of a single oblong element is advantageous as it allows obtaining an extremely resistant element to stresses and does not include joints and fastening means that may constitute elements of stress or structural weakening. The solution that provides the beam 6 in the form of the mutual union of two or more sub-oblong elements, on the other hand, while requiring stiffening and strengthening precautions, is advantageous as it allows disassembly, which, especially in the case of a long beam 6, enables easier transport or reduces the space needed for storing the disassembled beam 6 when it is not expected to be used for a certain period of time. The beam 6 is preferably made of a metallic material or a combination of metallic materials, such as, for example, steel or iron alloy, aluminum or aluminum alloy, or a combination of these materials. The beam 6 includes a first head 21 at a first end 11 of the oblong shape and a second head 22 at a second end 12, which is an end opposite to the first end 11 and with respect to the oblong shape of the beam 6 itself. That is, the first head 21 and the second head 22 are arranged at opposite ends 11, 12 of the oblong shape of the beam 6 itself. The beam 6 can have a squareshaped section, such as a square or rectangular section, for example. However, for the purposes of the present invention, the section shape of the beam 6 can also be polygonal, such as pentagonal or hexagonal, or similar. The section shape of the beam 6 can also be constituted by a portion of a circle with a straight connecting side between the opposite ends of the circular portion.

[0078] In the preferred solution of the present invention, the beam 6 has a rectangular section shape with the edges running along the longitudinal axis 58 of the central body radiated with a curvature that allows training climbing positions and movements on the beam 6 from the ground without causing skin abrasions from friction. In this configuration, as a non -limiting example, a short first side 61 of the rectangular section shape can have a measurement ranging from 40 to 60 mm, preferably 50 mm, while long second sides 62 of the rectangular section shape can have a measurement ranging from 70 to 90 mm, preferably 80 mm.

[0079] The first side 61 of the rectangular section shape is oriented upwards when the gym equipment 10 is in use, i.e., in a condition of resting on the ground with its supports 1, 2, 3, 4, 5, the term 'up' being referred to in relation to the direction of gravity, while the long second sides 62 are arranged laterally and orthogonally to the first side 61. The beam 6 comprises two seats 45, which are arranged (Fig. 1) one on each of the long second sides 62 so as to be mutually aligned transversely along a transverse axis 66 passing through the center of gravity of the beam 6. The two seats 45 are designed for attaching the fifth support 5 with trestle (Fig. 2, Fig. 3) to the beam 6 for configuring the gym equipment 10 in the form of an oscillating system (Fig. 19).

[0080] The first side 61 constitutes a flat and smooth primary training surface of the gym equipment 10, but, thanks to the modularity of the gym equipment 10, it is possible to configure the first side 61 with one or more selected accessories 47, 48, 49 (Fig. 20, Fig. 21, Fig. 22, Fig. 23, Fig. 24) from the series of accessories 46. To this end, the first side 61 includes an accessory anchoring system through which accessories 47, 48, 49 can be securely attached to the first side 61 to modify the training surface. The accessory anchoring system includes at least two threaded holes 63, each arranged near one of the ends 11, 12 of the beam 6, i.e., a first hole positioned near the first end 12 and a second hole positioned near the second end 12. However, with this configuration, it would be possible to attach only one accessory at a time, thus obtaining a uniform training surface. Advantageously, in the preferred solution of the present invention, it is provided that the accessory anchoring system includes two additional holes positioned close to each other on opposite sides of the center of the beam 6 along the junction line between the first hole positioned near the first end 11 and the second hole positioned near the second end 12. In this way, it is possible to attach (Fig. 21, Fig. 22, Fig. 23, Fig. 24) different accessories simultaneously to have different configurations of the training surface on a first portion 64 of the first side 61 and a second portion 65 of the first side 61. The attachment can take place, for example, using screws 69 that screw into the threaded holes 63.

[0081] The one or more accessories can be selected from the series of accessories 46, which may include at least one flat accessory 49 in the form of a rectangular section board with a smooth surface 50, at least one flat accessory 49 in the form of a rectangular section board with a rough or textured surface 51, at least one flat accessory 49 in the form of a rectangular section board with a smooth surface 50 on a first side and a rough or textured surface 51 on a second side opposite, at least one first tubular accessory 47 with a first diameter, and at least one second tubular accessory 48 with a second diameter greater than the first diameter.

[0082] In particular, the series of accessories 46 includes (Fig. 20, Fig. 22, Fig. 23, Fig. 24) at least one flat accessory 49 in the form of a rectangular section board. The board is equipped (Fig. 20, Fig. 32) with passages 84 for screws that screw into the threaded holes 63 of the beam 6 for securely fastening the flat accessory 49 to the beam 6. The edges of the board parallel to the longitudinal axis 58 are radiused with a curvature that allows training in climbing positions and movements without causing skin abrasions from friction. This accessory can be an element with a length equal to the length of the first side 61 of the beam 6, or, in the preferred solution of the present invention, the flat accessory 49 has a length equal to half of the length of the first side 61 of the beam 6, and in this case, two flat accessories 49 are provided which can be installed on the first side 61 simultaneously (Fig. 24) one after the other along the longitudinal axis 58 to form a uniform training surface along the entire length of the beam 6. Alternatively, one of the two flat accessories 49 can be mounted (Fig. 23) covering only half of the length of the beam 6, while the other half of the length of the beam 6 can be left free (Fig. 23) or equipped (Fig. 22) with a different type of accessory selected from the series of accessories 46, thus obtaining a non-uniform training surface along the entire length of the beam 6 to create variations in the training surface useful for the development of the user's balance capabilities. The flat accessory 49 has a width greater than the width of the first side 61, so that the first side 61 can be used as the primary flat and smooth training surface that has a smaller width and, therefore, a higher level of difficulty for the user. In the case of mounting the flat accessory 49, a wider flat training surface is obtained, which, therefore, has a lower level of difficulty for the user. Furthermore, it is provided (Fig. 20) that the flat accessory 49 is equipped with a smooth surface 50 and a rough or textured surface 51 arranged on opposite sides of the flat accessory 49, so that by flipping the flat accessory 49 before its installation on the beam 6, the gym equipment 10 can be configured with training surfaces 50, 51 having different sensory characteristics. For example, the flat accessory 49 may have a width between 70 and 120 mm, preferably 90 mm. Of course, sets of flat accessories 49 with different widths can be provided for use alone or in combination along the longitudinal axis of the beam 6. Since the first side 61 is expected to have a width between 40 and 60 mm with 50 mm as the preferred value, it is understood that the use of the flat accessory 49 results in a configuration of the gym equipment 10 with less difficulty for the user who performs the exercises with a laterally extended training surface. Referring to the textured surface 51, it is preferably obtained by a coating of rubbery material, with an indicative and non-limiting thickness of around 3 mm, wherein the rubbery material has pyramid-shaped protrusions. Scientific research suggests that textured surfaces can improve posture and balance by altering sensorimotor inputs through mechanoreceptors distributed on the soles of the feet. In other words, training on this type of surface with bare feet activates proprioception in the feet and hands, which over time produces a general improvement in posture, balance, and therefore also sports performance. Preferably, but not necessarily, the flat accessory 49 is made of wood.

[0083] In particular, the series of accessories 46 includes (Fig. 20, Fig. 21, Fig. 22) at least one first tubular accessory 47 with a first diameter between 30 and 55 mm. In general, various first tubular accessories 47 can be provided, which can be appropriately chosen from three different diameter ranges: 30-35, 40-45, or 50-55 mm. However, diameters different from those indicated are not excluded, including those within the range of 30-55 mm, as well as diameters less than 30 mm or greater than 55 mm. It will be apparent to one skilled in the art that these diameter ranges are not alternatives but can be integrated into the form of a set of first tubular accessories 47 with different diameters. For example, 50, 40, and 30 mm, as a set of first tubular accessories 47 with different diameters can provide a progression of intensity of the level of difficulty that a single tubular accessory of a single diameter cannot provide. This accessory can be an element with a length equal to the length of the first side 61 of the beam 6, or, in the preferred solution of the present invention, the first tubular accessory 47 has a length equal to half of the length of the first side 61 of the beam 6, and in this case, two first tubular accessories 47 are provided, which can be installed on the first side 61 simultaneously, one after the other along the longitudinal axis 58 to form a uniform training surface along the entire length of the beam 6. Alternatively, one of the two first tubular accessories 47 can be mounted (Fig. 21, Fig. 22) covering only half of the length of the beam 6, while the other half of the length of the beam 6 can be left free or equipped (Fig. 21, Fig. 22) with a different type of accessory selected from the series of accessories 46, thus obtaining a non-uniform training surface along the entire length of the beam 6 to create variations in the training surface useful for the development of the user's balance capabilities. Also in this case, it will be apparent to one skilled in the art that it is possible to provide (not shown) that the first tubular accessory 47 is equipped with a smooth surface and a rough or textured surface arranged on opposite sides of the first tubular accessory 47, so that by flipping the first tubular accessory 47 before its installation on the beam 6, the gym equipment 10 can be configured with training surfaces having different sensory characteristics, applying similar considerations as mentioned earlier for the flat accessory 49 regarding the type of rough or textured surface and the rubbery material and its beneficial effects.

[0084] In particular, the series of accessories 46 includes (Fig. 20, Fig. 21) at least one second tubular accessory 48 with a second diameter between 60 and 90 mm. In general, various second tubular accessories 48 can be provided, which can be appropriately chosen from three different diameter ranges: 60-70, 70-80, or 80-90 mm. However, diameters different from those indicated are not excluded, including those within the range of 60-90 mm, as well as diameters less than 60 mm or greater than 90 mm. It will be apparent to one skilled in the art that these diameter ranges are not alternatives but can be integrated into the form of a set of second tubular accessories 48 with different diameters. For example, 60, 70, and 80 mm, as a set of second tubular accessories 48 with different diameters can provide a progression of intensity of the level of difficulty that a single tubular accessory of a single diameter cannot provide. This accessory can be an element with a length equal to the length of the first side 61 of the beam 6, or, in the preferred solution of the present invention, the second tubular accessory 48 has a length equal to half of the length of the first side 61 of the beam 6, and in this case, two second tubular accessories 48 are provided, which can be installed on the first side 61 simultaneously, one after the other along the longitudinal axis 58 to form a uniform training surface along the entire length of the beam 6. Alternatively, one of the two second tubular accessories 48 can be mounted (Fig. 21) covering only half of the length of the beam 6, while the other half of the length of the beam 6 can be left free or equipped (Fig. 21) with a different type of accessory selected from the series of accessories 46, thus obtaining a non-uniform training surface along the entire length of the beam 6 to create variations in the training surface useful for the development of the user's balance capabilities. Also in this case, it will be apparent to one skilled in the art that it is possible to provide (not shown) that the second tubular accessory 48 is equipped with a smooth surface and a rough or textured surface arranged on opposite sides of the second tubular accessory 48, so that by flipping the second tubular accessory 48 before its installation on the beam 6, the gym equipment 10 can be configured with training surfaces having different sensory characteristics, applying similar considerations as mentioned earlier for the flat accessory 49 regarding the type of rough or textured surface and the rubbery material and its beneficial effects.

[0085] Of course, it is possible to combine (Fig. 21) a first tubular accessory 47 and a second tubular accessory 48 for installation on the first side 61 simultaneously, one after the other along the longitudinal axis 58, to form a non-uniform training surface with different diameters along the length of the beam 6, creating variations in the training surface useful for the development of the user's balance capabilities.

[0086] For example, the first tubular accessory 47 and the second tubular accessory 48 can be made as combinations of a tube with end closure headers on which passages 84 are formed (Fig. 20, Fig. 31) for screws to be screwed into the threaded holes 63 of the beam 6 for attachment to the beam 6. The tube can be made of a metallic material or a combination of metallic materials, such as, for example, steel or iron alloy, aluminum or aluminum alloy, or a combination of these materials. The end closure headers can be made of a metallic material or a combination of metallic materials, such as, for example, steel or iron alloy, aluminum or aluminum alloy, or a combination of these materials, or the end closure headers can be made of a plastic material, such as a technopolymer. The tube is sized to withstand the loads required by its use, namely walking, jumping, and climbing positions and movements.

[0087] Advantageously, it is envisaged that the accessories can also be used independently of the beam 6, for example, by using (Fig. 27) for each of the tubular accessories 47, 48, a pair of sixth supports 68 on which the accessory can be fixed with screws 69. The sixth support 68 includes a semicircular recess 37 for inserting a nonslip element 24 for ground support. The non-slip element 24 has a circular or ellipsoidal cross-sectional shape and extends transversely to the longitudinal development of the tubular accessories 47, 48 mounted on the sixth supports 68. This shape, given by the cross-sectional shape of the non-slip element 24 and its transverse development, is advantageous because it allows the use of the tubular accessory 47, 48 with the sixth supports 68 in a tilted condition (Fig. 28) on an elevation element 52, so that the curved surface of the circular or ellipsoidal cross-sectional shape of the non-slip element 24 always ensures a condition of adhesion regardless of the assumed inclination. In this way, when the tubular accessory 47, 48 with the sixth supports 68 is tilted or elevated, it does not require a non-slip mat because the non-slip element 24 of the sixth support 68 ensures adequate friction on different types of surfaces such as the floor, elevation elements 52 of the step or plyometric box type, or other rigid material supports. Furthermore, the friction between the non-slip element 24 and the support surface increases with increasing pressure exerted by the user's body weight performing the exercise. The non-slip element 24 is preferably a tubular strip made of flexible thermoplastic elastomer with high durability. It is also possible (Fig. 28) to combine the accessory used independently with elevation elements 52 to achieve inclined conditions and, consequently, increased training difficulty for the same exercise performed. The tubular accessory 47, 48 with the sixth supports 68 can be inclined up to approximately 25°-30°. An inclination of 30° can be achieved, for example, by placing the tubular accessory 47, 48 with one of the sixth supports 68 on an elevation element 52 about 75 cm high while the other of the sixth supports 68 remains on the ground. As the inclination increases, the difficulty of execution increases for the same surface and exercise performed due to biomechanical and emotional factors. The sixth supports 68, for example, can be structured to achieve a condition of lifting the tubular accessory 47, 48 about 3 cm off the ground. The tubular accessory 47, 48 can be safely elevated to a height of about 1.2 meters. With increasing height, for the same exercise performed, the training difficulty increases mainly due to emotional factors related to the fear of falling. Various configurations can be created for training with tubular accessories 47, 48 on the ground, such as a single small tubular accessory 47 or large 48 positioned on the ground, a pair of small tubular accessories 47 or large 48, or in combination with each other arranged parallel to each other, a pair of small tubular accessories 47 or large 48, or in combination with each other arranged side by side in a non-parallel manner but divergent or convergent, a pair of small tubular accessories 47 or large 48, or in combination with each other arranged one after the other, united or spaced apart. The flat accessory 49 can also be used independently of the beam 6. When the flat accessory 49 is used independently of the beam 6, it can be positioned on the ground, creating various configurations for training with the flat accessory 49 on the ground, for example, a single flat accessory 49 positioned on the ground with the smooth surface 50 facing upwards, a single flat accessory 49 positioned on the ground with the rough or textured surface 51 facing upwards, a pair of flat accessories 49 arranged parallel to each other, a pair of flat accessories 49 arranged side by side in a non-parallel but divergent or convergent manner, a pair of flat accessories 49 arranged one after the other, united or spaced apart. In the case of using a pair of flat accessories 49, it is also possible to choose whether to arrange them both with the smooth surface 50 facing upwards, both with the rough or textured surface 51 facing upwards, or one with the smooth surface 50 facing upwards and the other with the rough or textured surface 51 facing upwards. In the case of a flat accessory 49 made of wood, for safety reasons, it is preferable to use it in a ground-supported condition without the use of a sixth support 68 or similar, or in an inclined condition on elevation elements 52. However, it will be apparent to one skilled in the art that by using flat accessories 49 made of a material other than wood and more rigid or made of wood but with a metallic reinforcing core, the use of sixth supports 68 or similar, or use in an inclined condition on elevation elements 52, is possible.

[0088] The beam 6 of the gym equipment 10 is structured to be paired with the ground supports 1, 2, 3, 4 fixable to the beam 6 at the respective first ends 11 and second ends 12 of the beam 6 to obtain different configurations of the modular gym equipment 10. The gym equipment 10, therefore, includes a coupling system 9, 14, 17 consisting of a coupling plate 9 for each of the heads 21, 22 of the beam 6, two counter-coupling plates 14, and a locking element 17. In particular, the beam 6 includes a coupling plate 9 on the first head 21 of the first end 11 and a coupling plate 9 on the second head 22 of the second end 12. Each of the ground supports 1, 2, 3, 4, in turn, comprises two countercoupling plates 14, each equipped with a respective oblong and open housing 15 on one side in the form of an insertion guide. The two counter-coupling plates 14 are arranged so that the housing 15 is positioned with its guide opening facing upwards when the support 1, 2, 3, 4 is in a ground-supported condition on respective feet 23. The coupling plate 9 comprises (Fig. 4, Fig. 5, Fig. 6, Fig. 7) two mutually spaced insertion portions 7 laterally protruding from opposite ends of the coupling plate 9 with respect to the longitudinal axis 58. Each insertion portion 7 is suitable for insertion into the two corresponding housings 15 of the counter-coupling plate 14 with which the ground supports 1, 2, 3, 4 are equipped. Each of the insertion portions 7 is further delimited by a respective transverse holding element 8 so that each insertion portion 7 is transversely delimited on one side by the coupling plate 9 and on the opposite side by a respective transverse holding element 8. The insertion portion 7 has a thickness corresponding to the width of the housing 15 but less than the thickness of the coupling plate 9 and transverse holding element 8, so that, in the condition of insertion of the insertion portion 7 into the housing 15, the insertion portion 7 is transversely locked by the greater thickness of the coupling plate 9 and transverse holding element 8 compared to the width of the housing 15. In practice, the insertion portion 7 constitutes a slide for insertion into the housing 15 by (Fig. 7) sliding in a coupling direction 59 that is an essentially vertical direction so that the insertion portion 7 is inserted into the housing

[0089] 15 with the coupling plate 9 and transverse holding element 8 blocking its transverse movement, preventing it from moving or slipping laterally. As described, there are two parallel and transversely aligned counter-coupling plates 14 which are arranged at a mutual distance equal to the mutual distance between the two insertion portions 7 of the coupling plate 9. Once the coupling plate 9 is in a coupled condition with the two counter-coupling plates 14, the only allowed reciprocal movement is in the vertical coupling direction 59. To lock the reciprocal coupling between the beam 6 and the respective support 1, 2, 3, 4, releasable locking means 13, 17, 18 are provided. In particular, the coupling plate 9 includes a locking opening 13 with a longitudinal development, and the support 1, 2, 3, 4 includes a locking element 17 positioned on a connection plate 16 that transversely connects the two-parallel counter-coupling plates 14, so that the connection plate 16 is arranged parallel and frontal to the coupling plate 9. The locking element 17 includes a lifting handle 19 by which the excursion of a locking pin 18 can be controlled between two positions, of which a first position is a retracted position within the bulk of the connection plate 16 and a second position is an extended position in which the locking pin 18 protrudes relative to the connection plate

[0090] 16 with insertion (Fig. 6) of the locking pin 18 into the locking opening 13 with longitudinal development, so that the reciprocal movement between the beam 6 and the respective support 1, 2, 3, 4 in the vertical coupling direction 59 is blocked, preventing the insertion portion 7 from slipping out of the respective housing 15. A spring 20 keeps the locking pin 18 pushed within the locking opening 13 for safety, and only a pulling action on the lifting handle 19, which counteracts the spring force of the spring 20, allows the extraction of the locking pin 18 and the unlocking of the reciprocal sliding between the beam 6 and the respective support 1, 2, 3, 4 in the vertical coupling direction 59.

[0091] In other words, the coupling plates 9 located at the two ends 11, 12 of the beam 6, identical to each other, feature a frontal and central locking opening 13, along with two lateral linear guides formed by the two insertion portions 7, each fitting into its respective housing 15 of the support 1, 2, 3, 4. In this way, this creates an extremely robust, durable, and secure sliding mechanical insertion system, consisting in the pin 18 in the form of retractile spring-loaded piston 20.

[0092] In conclusion, the described coupling system enables stable and robust coupling between the beam 6 and the potential supports 1, 2, 3, 4, each serving a different function:

[0093] - a pair (Fig. 1, Fig. 7, Fig. 8, Fig. 9, Fig.10, Fig. 11) of first flat supports 1,

[0094] - a pair (Fig. 1, Fig. 12, Fig. 13, Fig. 14, Fig. 15) of second semilunar supports

[0095] 2,

[0096] - a pair (Fig. 1, Fig. 16, Fig. 17, Fig. 18) of supports for anchoring a strap 43 composed of a third support 3 and a fourth support 4.

[0097] Furthermore, as mentioned earlier, it is also possible to use (Fig. 1, Fig. 2, Fig. 3, Fig. 19) a fifth trestle support 5 that attaches to the beam 6 differently and in a central position along the length of the beam 6 along the longitudinal axis 58.

[0098] It is considered that this is the minimum set of legs 1, 2, 3, 4, 5 for training, both on stable surfaces, using the beam with supports 1, 3, 4 equipped with feet 23, and on unstable surfaces, using the beam with supports 2, 5 without feet 23. The instability that the user may experience during a training session is not of a single type but of three different types, namely instability caused by the second semilunar supports 2, instability caused by the strap anchored to the third support 3 and the fourth support 4, instability caused by the fifth trestle support 5. A training program carried out not only on stable surfaces but also on unstable surfaces, and furthermore, with multiple forms of instability, is more effective than a training program carried out only on a stable surface or only on an unstable surface with a single form of instability.

[0099] Considering (Fig. 1, Fig. 7, Fig. 8, Fig. 9, Fig.10, Fig. 11) the first flat support 1, it is envisaged to use two first flat supports 1, one fixed to the first head 21 on the first end 11 of the beam 6 and the other fixed to the second head 22 on the second end 12 of the beam 6. The first flat support 1 includes (Fig. 7) the counter-coupling portion of the previously described coupling system, consisting of the two counter-coupling plates 14 mutually parallel and spaced apart, joined together by the connection plate 16 equipped with the locking element 17. The first flat support 1 further includes (Fig. 9, Fig. 10, Fig. 26) two feet 23 arranged transversely externally or on opposite sides relative to the counter-coupling portion comprising counter-coupling means 14, 15 of the coupling system. Each of the feet 23 is fixed to one of the counter-coupling plates 14 and extends transversely externally to the region of the connection plate 16. Each of the feet 23 has a particular shape, which allows for a ground grip condition regardless of the inclination of the gym equipment 10. Indeed, the foot 23 is composed (Fig. 26) of a body 53 comprising a first side 55 and a second side 56 opposite each other, connected by a peripheral surface 57 which is at least curved underneath and includes at least one flat portion with a hollow 72, so that the flat portion of the surface serves as a fixing surface for a corresponding counter-coupling plate 14 which is inserted into the appropriate hollow 72 which is rectangular and equipped with holes for the passage of screws for fixing the counter-coupling plate 14. The peripheral surface 57 is provided with a groove 54 that extends along a transverse direction 73 in a spiral pattern around the peripheral surface 57. The groove 54 has a semi-circular cross-sectional shape so as to accommodate (Fig. 7, Fig. 8) the non-slip element 24 in the form of a tubular strip with a circular section that is wound into the groove 54 along the spiral shape to be blocked by insertion into the appropriate insertion holes 25 for locking in a tensioned condition of the tubular strip arranged within the groove 54. Since the groove 54 has a semi-circular cross-sectional shape and the strip of non-slip element 24 has a tubular shape with a circular section, half of the section of the non-slip element 24 is inserted into the groove 54 while the other half of the section of the non-slip element 24 protrudes from the groove 54 with the protruding part. The protruding part has a semicircular shape to achieve, therefore, a ground-contacting surface adaptable (Fig. 10) to different inclinations of the gym equipment 10 thanks to the combination of the curved lower shape of the peripheral surface 57 in a first ground-adaptation direction 74 and the curved shape of the strip constituting the non-slip element 24 in a second groundadaptation direction 75 orthogonal to the first ground-adaptation direction 74. This allows for a stable ground contact condition on (Fig. 10) a contact axis 81 on the ground comprising a series of contact areas 76 where each contact area 76 has an arcuate configuration in two orthogonal directions, even with different inclinations of the gym equipment 10. This condition is achieved in any direction of inclination, such as in the case of use in combination (Fig. 30) with one or more elevation elements 52, but also in a condition of support on a plane such as, for example, on the ground or on two elevation elements 52 similarly to the case of Fig. 29 relating to the embodiment with the pair of second semilunar supports 2, for which the same considerations apply. The foot 23, the counter-coupling plate 14, and the connection plate 16 can be made of a metallic material or a combination of metallic materials, such as, for example, steel or iron alloy, aluminum or aluminum alloy, or a combination of these materials, or a plastic material, such as a technopolymer. By using the first supports 1, the gym equipment 10 is configured for use in a stable form or with a low degree of instability. In this configuration, the gym equipment 10 equipped with the first supports 1 can be used in an inclined position (Fig. 30) according to different inclinations using elevation elements 52 of different heights to obtain different inclinations up to inclinations of 25°-30°. The use in the inclined condition is safe even at high degrees of inclination, thanks to the previously described combination of the curved lower shape of the peripheral surface 57 in a first ground-adaptation direction 74 and the curved shape of the strip constituting the non-slip element 24 in a second ground-adaptation direction 75 orthogonal to the first ground-adaptation direction 74. In the configuration of the gym equipment 10 with the first flat supports 1, the first side 61 constitutes a primary flat and smooth training surface of the gym equipment 10, but, thanks to the modularity of the gym equipment 10, it is possible to configure the first side 61 with one or more accessories 47, 48, 49 selected (Fig. 20, Fig. 21, Fig. 22, Fig. 23, Fig. 24, Fig. 30) from the series of accessories 46, as previously explained. With the gym equipment 10 equipped with the first supports 1 placed on the ground, the first side 61 of the beam 6, which constitutes a primary narrow flat and smooth training surface, is at a height from the ground of about 15 cm, which can also reach up to 24 cm by using one of the accessories in the series of accessories 46, such as, for example, with the second tubular accessory 48 having a larger diameter. In this configuration, the gym equipment 10 equipped with the first supports 1 can be used in an elevated position at different heights using two elevation elements 52 up to heights of the order of 1.2 meters from the ground, similarly to the case of Fig. 29 concerning the embodiment with the pair of second semilunar supports 2, for which the same considerations apply. In this configuration, the gym equipment 10 equipped with the first supports 1 can be used in an inclined position (Fig. 30) at different inclinations using an elevation element 52.

[0100] Considering (Fig. 1, Fig. 12, Fig. 13, Fig. 14, Fig. 15) a second semilunar support 2, it is envisaged to use two second semilunar supports 2, one fixed to the first head 21 on the first end 11 of the beam 6 and the other fixed to the second head 22 on the second end 12 of the beam 6. The second semilunar support 2 includes (Fig. 12) the counter-coupling portion comprising counter-coupling means 14, 15 of the coupling system previously described, consisting of two counter-coupling plates 14 mutually parallel and spaced apart, joined together by the connection plate 16 equipped with the locking element 17. The second semilunar support 2 further includes (Fig. 12, Fig. 13, Fig. 14) a base 26 in the form of a circular flange paired with a ground support interface 77, which is rotatable relative to the base 26 in different rotational positions by means of a central protrusion 35 of the ground support interface 77, which is inserted underneath the base 26 into a central cavity 36 of the base 26, which is located at the center of the circular shape of the circular flange constituting the base 26, so that the central protrusion 35 is free to rotate when in the inserted condition within the central cavity 36. The central protrusion 35 can be the cylindrical head of a screw screwed to the top of the interface 77, or a rotation pin fixed by interference to the top of the interface 77, or other similar elements capable of allowing mutual engagement with free rotation of one element with respect to the other. The ground support interface 77 has a bar-shaped configuration that extends along a transverse direction 73 of development in length, and the central protrusion 35 is centrally disposed with respect to the lengthwise development of the bar, thus defining a mutual rotation axis 78 between the base 26 and the ground support interface 77. The bar-shaped configuration of the ground support interface 77 further includes (Fig. 14) two threaded conduits 79 for tightening two corresponding cursors 27, which are composed of a plate 85, a knob 28, and a headless screw or setscrew 80 in a configuration where the base 26 is clamped between the plate 85 of each of the cursors 27 and the interface 77, obtaining releasable mutual fixation between the base 26 and the ground support interface 77. The cursors 27 slide within arcuate-shaped guides 29 symmetrically arranged on opposite sides with respect to the mutual rotation axis 78 between the base 26 and the ground support interface 77. By unscrewing the knobs 28 of the cursors 27, the clamping action of the base 26 between the interface 77 and each plate 85 of the cursors 27 is released, and the cursors 27 can slide within the guides 29, achieving mutual rotation between the base 26 and the ground support interface 77 around the rotation axis 78 with a variation of the inclination of the transverse direction 73 of development in length of the interface 77 relative (Fig. 15) to the longitudinal axis 58 of the beam 6, consequently obtaining different degrees of instability due to the rotation of the ground support interface 77 around the rotation axis 78. The base 26 is equipped with graduation scales 30 on each of the guides 29 for precise adjustment of the mutual rotational position between the base 26 and the ground support interface 77 around the rotation axis 78. In summary, in the case of the second semilunar support 2, the counter-coupling plates 14 are fixed on the base 26 in the form of a circular flange with two arcuate and symmetrical guides 29, each of which houses a respective cursor 27. The cursors 27 are screwed, on the other side of the base 26, onto the ground support interface 77, which has a semilunar arcuate shape comprising a central protrusion 35 that inserts into a cavity 36 of the base 26. The protrusion 35 constitutes a rotation pin for mutual rotation between the base 26 and the ground support interface 77 around a rotation axis 78. The center of the ground support interface 77 and the center of the base 26 are vertically aligned with each other and are further aligned with the transverse center of the beam 6 when the beam 6 is mounted on the second support 2. Preferably, the ground support interface 77 is hooked underneath the base 26 through a vertical clamp mechanism comprising a setscrew 80 that is inserted into a through-hole in the sliding plate 85 of the cursor 27 and screwed onto the underlying ground support interface 77 and finally locked with thread-locking material. In this case, the knob 28 is screwed onto the setscrew 80 until the base 26 is compressed between the sliding plate 85 and the ground support interface 77. This mechanism is duplicated on two opposite sides with respect to the rotation center of the base 26, i.e., with respect to the rotation axis 78. The two knobs 28 are then used to lock / unlock the rotation of the ground support interface 77 relative to the base 26, on which the counter-coupling plates 14 are fixed in a mutually integral manner for coupling with the beam 6. Once the knobs 28 are unscrewed, the semilunar ground support interface 77 can be rotated and locked in a different rotational position using the same knobs 28. The base 26, the ground support interface 77, the counter-coupling plate 14, and the connection plate 16 can be made of a metallic material or a combination of metallic materials, such as, for example, steel or iron alloy, aluminum or aluminum alloy, or a combination of these materials, or a plastic material, such as a technopolymer. The ground support interface 77 is configured as a bar, which is equipped (Fig. 14) with a recess 37 that extends along a transverse direction 73 of development in length of the bar, in which the recess 37 has a convex arcuate shape. The recess 37 has a semi-circular cross-sectional shape, so as to accommodate (Fig. 14) the non-slip element 24 in the form of a tubular strip with a circular section that is fixed within the recess 37 along the convex arcuate shape to be locked by locking screws in a tensioned condition of the tubular strip arranged within the recess 37. Since the recess 37 has a semi-circular cross-sectional shape and the strip of non-slip element 24 has a tubular shape with a circular section, half of the section of the non-slip element 24 is inserted into the recess 37 while the other half of the section of the non-slip element 24 protrudes from the recess 37 with the protruding part having an arcuate shape to achieve, therefore, a ground-contacting surface at a single contact point 82 on the ground. The single contact point 82 is adaptable (Fig. 13) to different inclinations of the gym equipment 10 thanks (Fig. 13) to the combination of the arcuate lower shape of the ground support interface 77 in a first ground-adaptation direction 74, and the curved shape of the strip constituting the non-slip element 24 in a second groundadaptation direction 75, orthogonal to the first ground-adaptation direction 74. This allows for a stable ground contact condition even with different inclinations of the gym equipment 10 in each direction, as, for example, in the case of use in combination (Fig. 25) with elevation elements 52, but also in a condition of support on a plane, as, for example, on the ground or on two (Fig. 29) elevation elements 52 in case a user on the beam 6 shifts the center of gravity of the system in one direction, causing an inclination of the gym equipment 10 at the single contact point 82 on the ground. The single contact point 82 on the ground, thanks to the indicated feature, is in each situation in a stable support condition preventing tipping, but with a general condition of system instability depending on the weight exerted by the user. By using the second supports 2, the gym equipment 10 is configured for use in an unstable form or with a high degree of instability. Consequently, training is carried out on a destabilizing surface. In particular, in this configuration, the instability is due to oscillations of the beam 6 around its longitudinal axis 58 with lateral oscillations, roll type.

[0101] The described system, comprising the base 26 coupled with the curved and rotatable ground support interface 77 relative to the base 26, constitutes a mechanism for adjusting the degree of instability of the gym equipment 10. The heart of this instability mechanism is the semilunar curved ground support interface 77. It rotates around its rotation center on the rotation axis 78, which is aligned with the center of the beam 6. The stability ratio is given by the ratio between (Fig. 14) the radius r of curvature of the semilunar arc-shaped configuration of the ground support interface 77 and (Fig. 15) the height h from the ground of the first side 61 of the beam 6, which constitutes the primary training surface, or alternatively, the corresponding height obtained with the application of any accessories (Fig. 20) from the accessories series 46. If r / h < 1, the beam 6 is in an unstable equilibrium condition, and the beam 6, together with its respective training surface, tilts more to one side and can no longer be optimally used for training, preventing any type of static and dynamic postural assessment. If r / h > 1 or r / h = 1, the training surface is in a stable or neutral equilibrium condition, and the beam no longer tilts to one side and remains level, i.e., parallel to the ground. In this case, the training surface can be used for training and also allows for the possibility of performing static and dynamic postural assessment. The conditions of stable and neutral equilibrium (r / h > 1 or r / h = 1) have been exploited to design this instability mechanism of the gym equipment 10, in order to determine a starting position of the exercise with always horizontal support. Considering the values of r / h, the closer it gets to 1, the more instability increases, and therefore, the difficulty of using the gym equipment 10 increases. Thus, as the radius r decreases or the height h increases, there is an increase in the degree of imbalance. The imbalance is maximum when r / h = 1. Similar stability ratios can be obtained by varying the radius r and keeping the height h constant or by varying the height h and keeping the radius r constant.

[0102] The gym equipment 10 does not provide a mechanism for varying the height h; therefore, the height h is a fixed value. Consequently, it is necessary to act on the radius r to modify the level of instability. One way to reduce the radius r could be to build different second supports 2 in a semilunar shape with gradually decreasing radii r of curvature. However, this solution is very inconvenient, expensive, and impractical since the setup times would be excessively long. Consequently, the system of reciprocal rotation between the base 26 and the curved ground support interface 77 has been devised. The physical radius of curvature r (Fig. 14) of the semilunar interface 77 can take values between 400 mm and 600 mm, such as 500 mm, for example. However, it will be evident that these values are indicative and not limiting, and radii of curvature lower than 400 mm and higher than 600 mm can be foreseen. If the semilunar ground support interface 77 is rotated around its center, the actual radius r' of the semilunar curve, i.e., the one that defines the level of difficulty, varies. More precisely, as the semilunar curve rotates from position 1 to position 5 on the graduation scale 30, the actual radius r' of curvature gradually decreases, resulting in a user experiencing a gradual and measurable increase in difficulty, at the same height h and for the same exercise performed on the training surface. Position 1 of the graduation scale 30 corresponds to a perfectly transverse condition of the ground support interface 77 relative to (Fig. 15) the longitudinal axis 58 of the beam 6, achieving the condition of minimum instability corresponding to an actual radius r' of curvature equal to the physical radius of curvature r of the interface 77, with the ground support interface 77 arranged at 90° relative to the beam 6. Position 5 of the graduation scale 30 corresponds to a maximally rotated condition of the ground support interface 77 relative to (Fig. 15) the longitudinal axis 58 of the beam 6, corresponding to the maximum condition of instability compared to other positions on the graduation scale 30, with an actual radius r' of curvature minimum compared to other positions on the graduation scale 30. This is the condition of maximum difficulty for the user. For example, with a physical radius of curvature r of the semilunar interface 77 equal to 500 mm and a rotated condition of 45° relative to the longitudinal axis 58 of the beam 6, an actual radius r' of curvature equal to 250 mm is obtained.

[0103] The actual radius r' can be determined using a trigonometric function for each angle of rotation of the ground support interface 77 relative to (Fig. 15) the longitudinal axis 58 of the beam 6. With this instability mechanism, various difficulty levels can be set, easily identifiable by the user because they are displayed on the upper face of the base 26, through the graduation scale 30. For example, in the depicted solution (Fig. 12), 9 difficulty levels are shown, i.e., 9 notches, five of which are numbered from 1 to 5 and four intermediate levels indicated by unnumbered notches. A lower or higher number of difficulty levels can be envisaged, or a graphically different grading scale can be designed. However, the logic of the adopted solution remains unchanged. One aspect to consider is the overall amplitude of the angle of rotation of the ground support interface 77. In determining the overall amplitude of the angle of rotation of the ground support interface 77, it is necessary to consider the condition r / h greater than or equal to 1 for all possible values of h for the gym equipment 10. Indeed, it must be considered that the height h of the beam 6 is fixed, but accessories from the series of accessories 46 can be applied to the beam 6, obtaining a training surface that is positioned higher than the first side 61 of the beam 6, with the risk that if this aspect is not taken into consideration, conditions can be obtained where r / h is less than 1, i.e., conditions where the beam 6 leans more to one side and can no longer be used effectively for training, preventing any type of static and dynamic postural assessment.

[0104] For example, consider cases where:

[0105] - hO = height from the ground of the first side 61 of the beam 6 without accessories,

[0106] - hl = height from the ground of the first side 61 increased by the thickness of the flat accessory 49 equal to 30 mm,

[0107] - h2 = height from the ground of the first side 61 increased by the diameter of a first tubular accessory with a diameter of 50 mm,

[0108] - h3 = height from the ground of the first side 61 increased by the diameter of a second tubular accessory with a diameter of 70 mm.

[0109] From this example, it is understood that the reference height for the dimensioning of r / h, in order to maintain a value of the ratio r / h greater than or equal to 1 in any condition, is the highest possible, given by r / hMAX corresponding to h3 = height from the ground of the first side 61 increased by the diameter of a second tubular accessory with a diameter of 70 mm.

[0110] To determine the full-scale position, i.e., position 5, in the example provided, and thus to determine the overall amplitude of the rotation angle, it is necessary to consider the r / hMAX ratio and accordingly determine the maximum reciprocal rotation angle between the base 26 and the arcuate ground support interface 77 at which the effective curvature radius r’ maintains a condition of r’ / hMAX greater than or equal to 1. Consequently, the amplitude of the graduation scale is minimized, considering the various surfaces. All surfaces will not reach an r / h=l except for the surface at height h3, which is the highest. Alternatively, one could calculate the maximum reciprocal rotation angle between the base 26 and the interface 77 for each of the possible heights hO, hl, h2, h3, setting position 5 as the position corresponding to a value of r / h = 1 for the minimum height hO. This means that, for example, with the flat accessory 49 in rotation position 5, a value of r / h < 1 is obtained, i.e., with the beam 6 leaning more to one side. In such a case, then, it is possible to indicate on the scale of graduation 30 the maximum reciprocal rotation angle between the base 26 and the interface 77 that can be set for each of the accessories in such a way that the r / h condition is guaranteed to be greater than or equal to 1.

[0111] Thanks to the indicated adjustment system, it is easy and intuitive to set the desired level of instability. To transition, for example, from difficulty level 1 to difficulty level 2.5, you will need to act simultaneously on the two knobs 28, following three simple operations: a) unscrew the knobs 28 simultaneously with both hands, for example, half a turn, to release the clamping between base 26 and interface 77; b) rotate the semilunar interface 77 by acting, always with both hands, on both ends of the semilunar shape, so that the cursor 27 moves, and correspondingly, a notch on the plate 85 moves from position 1 to align with position 2.5 on the scale 30; c) screw the knobs 28 to achieve the mutual tightening of the base 26 and interface 77 in the set position. This sequence must be carried out for both second supports 2 located on opposite ends 11, 12 of the beam 6. In other words, both second supports 2 must be positioned at the value 2.5 on the scale of graduation 30. If the interfaces 77 of the two second supports 2 on opposite ends 11, 12 of the beam 6 are not parallel, the effective radius of curvature of the two semilunar supports 2 does not coincide. Consequently, the level of instability varies along the surface, becomes unknown, and makes it impossible to administer a load, that is, a progressive level of instability.

[0112] By using the second supports 2, the gym equipment 10 is configured for use in an unstable form or with an adjustable high degree of instability. In this configuration, the gym equipment 10 equipped with the second supports 2 can also be used in an inclined position at different inclinations using (Fig. 25) elevation elements 52 of different heights to achieve different angles A of inclination relative to the ground 60, up to an inclination, for example, of about 15°. However, the gym equipment 10 with the second supports 2 can be inclined only if the interface 77 is arranged at 90° to the beam 6, that is, when the notch of the plate 85 of the cursor 27 is aligned with position 1 of the graduation scale 30, or when the instability level selected by the user is at the minimum level. Otherwise, when the instability level selected by the user is higher than the minimum level, the beam 6, or the training surface, leans more to one side and can no longer be used effectively for training. The use in the inclined condition is safe thanks to the previously described combination of the lower curved shape of the ground support interface 77 in a first ground-adaptation direction 74 and the lower curved shape of the strip constituting the non-slip element 24 in a second ground-adaptation direction 75 orthogonal to the first ground-adaptation direction 74. In the configuration of the gym equipment 10 with the second supports 2 in a semilunar shape, the first side 61 constitutes a flat and smooth primary training surface of the gym equipment 10, but, thanks to the modularity of the gym equipment 10, it is possible to configure the first side 61 with one or more accessories 47, 48, 49 selected (Fig. 20, Fig. 21, Fig. 22, Fig. 23, Fig. 24) from the series of accessories 46, as previously explained. With the gym equipment 10 equipped with the second supports 2 resting on the ground, the first side 61 of the beam 6, which constitutes a narrow flat and smooth primary training surface, is at a height from the ground of about 15 cm, which can reach 24 cm by using one of the accessories from the series of accessories 46, such as with the second tubular accessory 48 with a larger diameter. In this configuration, the gym equipment 10 equipped with the second supports 2 can be used in an elevated position (Fig. 29) at different heights using two elevation elements 52, up to heights of the order of 1.2 meters from the ground.

[0113] Considering (Fig. 1, Fig. 16, Fig. 17, Fig. 18) a pair of supports for strap 43, one fixed to the first head 21 on the first end 11 of the beam 6, and the other fixed to the second head 22 on the second end 12 of the beam 6, in this case, the pair of supports consists of a third support 3 and a fourth support 4 that are different from each other because:

[0114] - the third support 3 is configured for a fixed attachment of the strap 43 to a respective bar 40 positioned transversely between the two counter-coupling plates 14, which is removable by two flat knobs 41 on the sides in order to insert the bar 40 into an end loop of the strap 43 to securely engage it with the third support 3. The third support 3 further includes guide crosspieces 42 for guiding the strap 43 to achieve a guided path of the strap 43 from the strap holding bar 40 towards the direction of extension of the strap 43 in order to obtain a condition of parallelism between the strap 43 and the first surface 61 of the beam 6 with the strap 43 spaced and positioned superiorly and parallel to the first surface 61 of the beam 6;

[0115] - the fourth support 4 is configured for the attachment of the strap 43 to a toothed roller or tensioner 38 operated by a lever 39 that creates a ratchet tensioning system for the strap 43. The fourth support 4 further includes guide crosspieces 42 for guiding the strap 43 to achieve a guided path of the strap 43 from the toothed roller 38 towards the direction of extension of the strap 43 in order to obtain a condition of parallelism between the strap 43 and the first surface 61 of the beam 6 with the strap 43 spaced and positioned superiorly and parallel to the first surface 61 of the beam 6.

[0116] The strap 43 and the toothed roller or ratchet tensioning system 38 for tensioning the strap 43 are to be considered known elements of the prior art.

[0117] The strap 43 is approximately 4-5 meters long and can have a width ranging from 25 mm to 50 mm, preferably 50 mm. The strap 43 is typically made of high- tenacity flat polyester fabric, capable of withstanding a breaking load that can be, for example, between 20 kN and 40 kN. The strap 43 has a loop at one end and is free at the other end for insertion into the ratchet tensioning system. The strap 43 is to be considered a known element of the prior art.

[0118] Assuming a body weight of 80 kg, a usable length of the strap 43 of about 3 meters, and a height difference, i.e., the vertical distance between the taut strap and the first side 61 of the beam 6, of about 18 cm, the static working load is approximately 3 kN. With a breaking load of the strap of 20 kN, there is, therefore, a wide safety margin for training: indeed, the safety factor, given by the ratio of the breaking load to the working load of the strap, is greater than 6.

[0119] Both the third support 3 and the fourth support 4 include (Fig. 16, Fig. 17) the counter-coupling portion of the previously described coupling system, consisting of two mutually parallel and spaced counter-coupling plates 14, joined together by the connection plate 16 equipped with the locking element 17. Both the third support 3 and the fourth support 4 further include (Fig. 16, Fig. 17) two feet 23 arranged externally or transversely on opposite sides of the counter-coupling portion comprising countercoupling means 14, 15 of the coupling system. Each of the feet 23 is attached to one of the counter-coupling plates 14 and extends transversely outwardly from the region of the connection plate 16. Each of the feet 23, both for the third support 3 and the fourth support 4, has the same configuration previously described with reference to the first support 1, to which reference is made for details regarding the particular conformation that allows achieving a ground grip condition regardless of the inclination of the gym equipment 10, i.e., with respect to the conformation of the body 53, the peripheral surface 57, the spiral groove 54 to accommodate the non-slip element 24 in the form of a tubular strip with a circular section. The foot 23, the counter-coupling plate 14, the connection plate 16, the bar 40, and the crosspiece 42 can be made of a metallic material or a combination of metallic materials, such as, for example, and without limitation for the purposes of the present invention, steel or iron alloy, aluminum or aluminum alloy, or a combination of these materials, or in a plastic material, such as a technopolymer.

[0120] By using the third support 3 and the fourth support 4, one might think that the gym equipment 10 is configured for use on a stable surface. However, the training surface is not the first side 61 of the beam 6, which is rigid and stable, but it is the surface of the strap 43, which is a flexible and unstable element tensioned between the opposite ends 11, 12 of the beam 6 thanks to the ratchet tensioner 38.

[0121] In this configuration, training is done on a destabilizing surface provided by the strap 43 because it is a flexible and partially elastic material, unlike the other surfaces already described, which are all rigid. The usable length of the strap 43 is about 3 meters in the case of a beam 6 with a length of 3 meters, and it is evident to one skilled in the art that different lengths of the beam 6 will correspond to different lengths of the strap 43 tensioned between the opposite ends of the beam 6. In particular, in this configuration, instability is caused by lateral and vertical oscillations of the strap 43. The more the strap 43 is tensioned, the more stable the training surface. The looser the strap 43, the more the training surface moves, oscillating, the more precarious the balance, and therefore, the more difficult the exercise execution. Therefore, the level of instability of the strap 43 is adjustable by acting on the lever 39 of the ratchet 38. Stability of the strap will be maximum when the load that can be manually applied with the lever 39 of the ratchet to increase the tension of the strap without using tools is not further increasable. Stability / instability of the strap will be minimum / maximum when a further reduction of the manual load causes the user placed above the strap at the center of the beam 6 to touch the beam 6 with the strap 43, canceling the height difference between the strap 43 and the first side 61 of the beam 6. When the strap 43 touches the beam 6, the training is no longer practicable. In this configuration, the available training surface is only that of the strap 43 tensioned between the opposite ends 11, 12 of the beam 6. In this configuration, the gym equipment 10 equipped with the third support 3 and the fourth support 4 can be used in an inclined position at different inclinations using elevation elements 52 of different heights to achieve different inclinations up to 25°-30°. The use in the inclined condition is safe even at high degrees of inclination, thanks to the previously described combination of the curved lower shape of the peripheral surface 57 in a first ground-adaptation direction 74 and the curved lower shape of the strip constituting the non-slip element 24 in a second ground-adaptation direction 75 orthogonal to the first ground-adaptation direction 74. With the gym equipment 10 equipped with the third support 3 and the fourth support 4 resting on the ground, the strap 43, which constitutes the training surface, is at a height of about 30 cm from the ground, given by the sum of the height of the gym equipment 10 and the elevation of the strap 43 compared to the first side 61 of the beam 6. Although less preferable in this configuration, the gym equipment 10 equipped with the third support 3 and the fourth support 4 can be used in an elevated position at different heights using two elevation elements 52 similarly to what is illustrated in Fig. 29. However, the presence of the beam 6 under the strap prevents the execution of climbing exercises (e.g., suspensions from the strap 43) even though the beam is elevated. In practice, the strap is used to perform walking, jumping, and other exercises that require positioning above the strap 43 and not below. Elevating the strap, although possible, serves only to increase the perceived difficulty of the exercise due to emotional factors related to the fear of falling.

[0122] Considering (Fig. 1, Fig. 2, Fig. 3, Fig. 19) a fifth support as a trestle 5, this support, unlike the other supports 1, 2, 3, 4 previously illustrated, is not fixed to the ends 11, 12 of the beam 6 of the gym equipment 10, but it is a single support, meaning it is not intended to be used in conjunction with another similar support and is intended to be fixed centrally with respect to the longitudinal development of the beam 6. The fifth trestle support 5 comprises a flat frame 31 having a trapezoidal shape in which the base of the trapezoid includes a non-slip element 24 for ground support. On the side opposite to the base for ground support, the fifth trestle support 5 comprises a cradle 33 equipped with an insertion space 32 for inserting the beam 6, wherein the cradle 33 has a shape equal to the cross-sectional shape of the beam 6 so that the beam 6, in the inserted condition within the cradle 33, is laterally blocked by the walls of the cradle 33. The beam 6 comprises two seats 45, which are arranged (Fig. 1) on each of the second sides 62 to be mutually aligned transversely along a transverse axis 66 passing through the center of gravity of the beam 6, the two seats 45 being designed for attachment to the beam 6 of the fifth trestle support 5 (Fig. 2, Fig. 3) for configuring the gym equipment 10 in the form of (Fig. 19) an oscillating system. The seats 45 are threaded, and in the condition of inserting the beam 6 into the cradle 33, the two seats 45 are aligned with corresponding bushings 34 of the frame 31. In this way, fastening elements 44 in the form of screws can be inserted into the bushings 34 for screwing into the threaded seats 45 of the beam 6, creating a coupling between the beam 6 and the fifth trestle support 5, where the beam 6 and the fifth trestle support 5 are mutually fixed securely to each other. The bushings 34 are made in the form of through-holes of the fifth support 5 so that the fastening elements 44 in the form of screws pass laterally through the cradle 33 without screwing onto it and screw directly into the threaded seats 45 of the beam 6, locking the beam 6 within the cradle 33, making the beam 6 and the fifth trestle support 5 mutually integral to each other. The non-slip element 24 for ground support is attached to the base of the trapezoidal frame 31 within an insertion slot 86, which extends along a transverse development direction 73 in width parallel to the transverse axis 66 of the beam 6, wherein the insertion slot 86 has a straight course. The insertion slot 86 has a semi-circular cross-sectional shape to accommodate (Fig. 3) the non-slip element 24 in the form of a tubular strip with a circular section. The nonslip element 24 is fixed within the insertion slot 86 along the straight conformation, for example, by locking screws, maintaining tension in the tubular strip within the insertion slot 86. Since the insertion slot 86 has a semi-circular cross-sectional shape, and the strip of the non-slip element 24 has a tubular circular section, half of the section of the non-slip element 24 is inserted into the insertion slot 86 while the other half of the section of the non-slip element 24 protrudes from the insertion slot 86 with the protruding part having a semi-circular configuration along the direction of the longitudinal axis 58. In this way, it is possible to obtain an adaptable ground contact surface (Fig. 19) for oscillations around an orthogonal axis 67 passing through the center of the fifth trestle support 5, thereby allowing oscillations of the beam 6 between two opposite stable positions. In particular, in a first stable position, the beam 6 is centrally supported by the fifth trestle support 5 and rests on the ground with the first head 21, and in a second stable position, the beam 6 is centrally supported by the fifth trestle support 5 and rests on the ground with the second head 22. Thanks to (Fig. 2, Fig. 3, Fig. 19) the semi-circular shape of the portion of the non-slip element 24 that protrudes downward from the insertion slot 86, a stable central ground contact condition of the fifth trestle support 5 is achieved even during variations in the inclination of the gym equipment 10 during the transition between the first stable position, the beam 6 resting on the ground with the non-slip element 24 and the first head 21, and the second stable position, the beam 6 resting on the ground with the non-slip element 24 and the second head 22. In this configuration, therefore, there is (Fig. 2, Fig. 3, Fig. 19) a ground contact line 83 condition parallel to a transverse direction 73 relative to the longitudinal axis 58, where the ground contact line 83 is an intersection line between a contact surface having a cylindrical shape and the ground 60. The non-slip element 24 ensures adequate friction between the fifth support 5 and its contact surface, which can be the floor as well as an elevation element 52. In this configuration, the gym equipment 10 is unstable in the condition supported centrally by the trestle. The user walks on the beam 6, climbing from the end 11, 12 resting on the ground, and as soon as the body weight surpasses the center of the beam 6, the beam becomes declined. More precisely, the user walks on the first side 61 along its longitudinal axis 58. During the first half of the path, the first side 61 is inclined. As soon as the user surpasses the center of the beam 6, the body weight causes the beam 6 to oscillate antero-posteriorly as indicated by the arrows in Fig. 19. The beam 6 tilts from the opposite side, coming to rest on the ground on the end opposite to where the user climbed onto the beam 6. From that point onwards, the user continues to walk on the first side 61 along its longitudinal axis 58, traversing the beam 6 that is in a declined position. In particular, the instability is caused by an oscillation of the beam 6 substantially around its orthogonal axis 67 with an anteroposterior oscillation, resembling pitching. Since the fifth support 5 is fixed solidly to the beam 6, the fifth trestle support 5 rotates together with the beam 6 in a condition of ground support on the semi-circular shape of half of the section of the non-slip element 24 protruding from the insertion slot 86. When the fifth trestle support 5 is positioned on the ground, the beam 6 has an inclination / declination of about 10°. A lower inclination can be achieved by placing the heads 21, 22 on cushioning supports that keep them elevated from the ground. The frame 31 and the cradle 33 of the fifth support 5 can be made of a metallic material or a combination of metallic materials, such as, for example and without limitation for the purposes of this invention, steel or iron alloy, aluminum or aluminum alloy, or a combination of these materials, or in a plastic material, such as, for example, a technopolymer. In the preferred form of the present invention, the cradle 33 is made of a technopolymer that ensures a firm grip when the fifth trestle support 5 is screwed onto the beam 6, while at the same time preventing damage to the surface of the beam. The mechanical coupling between the cradle 33 and the beam 6 is robust and sized to withstand the loads expected from its use. In the configuration of the gym equipment 10 with the fifth trestle support 5, the first side 61 constitutes a flat and smooth primary training surface of the gym equipment 10, but, thanks to the modularity of the gym equipment 10, it is possible to configure the first side 61 with one or more selected accessories 47, 48, 49 (Fig. 20) from the series of accessories 46, as previously explained. The gym equipment 10 equipped with the fifth trestle support 5 can be used in an elevated position at different heights using an elevation element 52, placed between the ground and the non-slip element 24 present on the base of the trapezoidal frame 31. For example, the elevation can be achieved with an elevation element 52 having a height of 50 cm, which corresponds to an increase in the inclination of the beam from the standard condition of 10° to about 30° with an increase in the difficulty level of the exercise by the user. The elevation of the gym equipment 10 with the fifth support 5 using an elevation element 52 occurs safely and without the need for a non-slip mat since the gym equipment 10 interacts with the contact surface of the elevation element 52 through the non-slip element 24, which ensures adequate friction.

[0123] Furthermore, friction increases as the pressure on the equipment exerted by the user's body weight increases.

[0124] As specified, the non-slip element 24 for ground support used for supports 1, 2, 3, 4, 5 of the gym equipment 10 is a strip of elastomeric material with a circular or ellipsoidal cross-sectional shape, which advantageously has a degree of deformability that allows compression to increase the frictional condition with a ground support surface as the pressure exerted by the user's body weight performing an exercise on the gym equipment 10 increases. Preferably, the non-slip element 24 is made of a flexible material with high durability. For example, the elastomeric material can be selected from various materials such as rubber or plastic. The non-slip element 24 can be made of a flexible thermoplastic elastomer with high durability, which is not subjected to thermoplastic treatment, thus maintaining the desired degree of deformability. In the preferred solution of the present invention, the nonslip element 24 is made of thermoplastic polyurethane with a rough or smooth surface and a hardness between 85 and 95 shore A. The choice of these values is not arbitrary but responds to the need to allow obtaining sufficient deformability and friction to ensure a secure ground support, but also resistance to excessive deformability to maintain the described instability characteristics desirable for the types of training provided, as previously explained. For example, for the first support 1, the third support 3, and the fourth support 4, a non-slip element 24 with a diameter of 10 mm can be used, while for the second support 2 and the fifth support 5, a non-slip element 24 with a larger diameter, such as 15 mm, can be used. For each of the described configurations of the gym equipment 10 with two flat first supports 1, two semilunar second supports 2, a pair of strap supports consisting of a third support 3 and a fourth support 4, it is also possible (Fig. 25, Fig. 29) to combine them with elevation elements 52 to achieve inclined conditions (Fig. 25) relative to the ground 60 or lifting conditions (Fig. 29) from the ground. As the inclination increases, the difficulty of execution increases with the same surface and exercise performed due to biomechanical and emotional factors. For example, (Fig. 25) by using only one elevation element 52 on which one of the supports 1, 2, 3, 4 of the gym equipment 10 is supported, and keeping the other of the supports 1, 2, 3, 4 of the gym equipment 10 in a ground 60 support condition, it is possible to achieve an inclined condition at an angle A relative to the ground 60. By using elevation elements 52 of different heights, it is possible to vary the angle A of inclination relative to the ground 60. In addition to the inclined condition, using two elevation elements 52 from opposite sides of the gym equipment 10, a lifting condition (Fig. 29) from the ground up to a height of about 1.2 meters can be achieved. As the height increases, with the same exercise performed, the difficulty of training increases mainly due to emotional factors related to the fear of falling.

[0125] From what has been explained, it is understood how the modularity of the gym equipment 10 allows an extremely high combination of configurations to perform a multitude of exercises and workouts that no prior art solution contemplates for a single equipment. This allows the achievement of a variety of training surfaces and different instability conditions, such as:

[0126] - flat and narrow smooth primary training surface constituted by the first side 61 of the beam 6, wide flat and smooth training surface constituted by the smooth surface 50 of the flat accessory 49 mounted on the first side 61 of the beam 6, wide flat and rough or textured training surface constituted by the rough or textured surface 51 of the flat accessory 49 mounted on the first side 61 of the beam 6, small round surface constituted by the first tubular accessory 47 mounted on the first side 61 of the beam 6, large round surface constituted by the second tubular accessory 48 mounted on the first side 61 of the beam 6, combination of a flat accessory 49 with one of the tubular accessories 47, 48 mounted on semi-portions of the first side 61 of the beam 6; each of them in combination with the possible conditions of stable and unstable support with different types of instability given by:

[0127] - beam 6 supported on the ground by a pair of flat first supports 1, achieving a stable condition; beam 6 supported on the ground by a pair of semilunar second supports 2, achieving an unstable condition; beam 6 supported on the ground by the fifth trestle support 5, achieving an unstable condition.

[0128] An additional unstable combination is provided by the flexible flat surface constituted by the strap 43 mounted parallel to the first side 61 of the beam 6, using the third support 3 and the fourth support 4. To all these combinations, further possible combinations are added by using elevation elements 52 that can have different heights, be applied on only one side of the gym equipment 10, or on both sides of the gym equipment 10.

[0129] As explained, the gym equipment 10 includes (Fig. 20) accessories 47, 48, 49 selectable from a series of accessories 46, which can be fixed (Fig. 21, Fig. 22, Fig. 23, Fig. 24, Fig. 30) to the beam 6 of the gym equipment 10 or, in general, can be used (Fig. 27, Fig. 28) independently using specific sixth supports 68. As previously mentioned, the fixing (Fig. 20) of the accessories to the beam 6 or the sixth supports 68 is done with screws 69. Advantageously, the accessories 47, 48, 49 of the gym equipment 10 are expected (Fig. 31, Fig. 32) to have a screw 69 housing system, which is an integrated screw housing system in the accessories 47, 48, 49 themselves. The solution adopted to minimize the insertion / removal times of the screws 69 into the provided housings also allows for housing in the case of accessories made of wood or reduced thickness that would not be properly threadable to retain the screw 69. It is necessary first to consider the availability of material needed to accommodate the entire shank of the screw, the material's ability to be threaded, and the length of the screw, which varies depending on the accessory and can be over 9 cm. A fully threaded housing would be an unfeasible solution because it would make the screwing / unscrewing times excessive or incompatible with professional use in gyms, fitness centers, rehabilitation centers, or sports centers where equipment needs to be set up or modified quickly and equipped with accessories during use. A partially threaded housing is a feasible solution only if there is material available to accommodate the entire shank of the screw, and the material lends itself to being threaded, which is not feasible in the case of a flat accessory 49 made of wood, for example. In the case of the tubular accessory, the head is threadable but has insufficient thickness to contain the entire shank of the screw 69. One might think of increasing the thickness of the head of the tubular accessory, but this would involve the use of excess material, increasing the weight of the accessory without an increase in robustness. The screw 69 housing system consists of two storage spaces 70 created within the respective accessory 47, 48, 49. For example, storage spaces 70 can be arranged on opposite head end sides of the accessories themselves, so as to be able to deposit the screws 69 within them when the accessories need to be stored and are not in use. Advantageously, with this solution, the screws 69 are always in an insertion condition and more precisely (Fig. 1) in the holes 63 of the beam 6 when the accessories are in a mounted condition on the beam 6 or within the storage spaces 70 when the accessories are not in use. This limits the risk that the screws 69 may be lost or scattered in the environment of use of the gym equipment 10, creating potential danger conditions as a user could slip on them. Advantageously, when the screw 69 is housed in the storage space 70, the cylindrical head of the screw remains visible because it protrudes (Fig. 31, Fig. 32) completely from the surface of the head, allowing for easy gripping to extract the screw 69 from the storage space 70 by pulling. In fact, the screw 69 is not retained by screwing on a thread but is retained within the storage space 70 by interference with an interference element 71 that protrudes partially into the storage space 70 in an intermediate area of the latter with respect to the lengthwise development of the oblong storage space 70 to accommodate the shank of the screw 69. The interference element 71 is inserted through a transverse hollow 72 with respect to the lengthwise direction of the storage space 70, and the interference element 71 is pushed into the partially protruding position within the storage space 70 by a bead that also prevents the interference element 71 from coming out of the transverse hollow 72. The interference element 71 can be made of, for example, a rubbery material or in the same material as the non-slip element 24. Alternatively, the interference element 71 can be formed directly on the bead, for example, by using a bead with a tip made of polyurethane plastic. The bead is screwed in just enough to create friction between the tip of the bead and the shank of the screw, preventing the screw 69 from coming out or falling out of the storage space 70, but at the same time allowing for easy removal of the screw 69 from the storage space 70 with a simple finger pull.

[0130] With regard to the housing system for the fastening element 44 of the fifth support 5 as a trestle, in this case, a different system has been provided compared to the one used for accessories. Indeed, in this case (Fig. 2), the frame 31 has a sufficient amount of material to be threaded, and the solution adopted, in this case, to minimize insertion / removal times is a shorter partial thread compared to the entire length of the threaded shank of the fastening element 44 of the fifth support 5 as a trestle. The housing hole for the fastening element 44 is sufficiently deep to accommodate the entire shank of the fastening element 44. It is threadable because it is made of metallic material. The thread is partial, placed at the bottom of the housing seat, with a length sufficient to fasten the fastening element 44 with about 1 turn. The choice of this solution is therefore linked to the fact that there is enough material in the frame 31 to accommodate the entire shank of the fastening element 44, and the material lends itself to being threaded. Ultimately, the present invention relates (Fig. 1) to a gym equipment 10 for performing exercises by a user comprising a beam 6 having an oblong shape developed lengthwise along a longitudinal axis 58. The beam 6 comprises a first head 21 at a first end 11 and a second head 22 at a second end 12, which is an end opposite to the first end 11 and with respect to the oblong shape of the beam 6. The gym equipment 10 includes legs 1, 2, 3, 4, 5 for support on the ground 60 in a condition where the beam 6 is (Fig. 11, Fig. 15, Fig. 18, Fig. 19) at least partially spaced from the ground 60, the legs being equipped with a non-slip element 24 for ground support. The beam 6 comprises an upper first side 61 constituting a primary upward-facing training surface, with the terms "high" and "upper" being referred to in relation to the direction of gravity when the gym equipment 10 is in operational condition on the ground 60. In particular, the gym equipment 10 is a modular device in which the legs 1, 2, 3, 4, 5 are selectable (Fig. 1) from a set of mutually interchangeable legs 1, 2, 3, 4, 5 for releasable attachment to the beam 6, wherein the set of legs 1, 2, 3, 4, 5 includes types of legs supporting the beam 6 relative to the ground 60 with a different degree of instability relative to the ground 60, including at least:

[0131] - a first type of leg 1, 3, 4 that is in a ground support condition on a series of ground contact areas 76 arranged (Fig. 10) on a ground contact axis 81 where each ground contact area 76 has a curved lower shape in a first ground-adaptation direction 74 and in a second ground-adaptation direction 75, achieving a stable condition relative to the ground and the weight exerted on the beam 6;

[0132] - a second type of leg 2 that is in a ground support condition on (Fig. 13) a single ground contact point 82, where the contact point 82 is located at the intersection between a convex curved shape in the first ground-adaptation direction 74 and a convex curved shape in the second ground-adaptation direction 75, orthogonal to the first ground-adaptation direction 74, achieving a stable condition relative to the ground and instability relative to the weight exerted on the beam 6 with oscillations of the beam 6 around the longitudinal axis 58.

[0133] Furthermore, (Fig. 2, Fig. 3, Fig. 19) the types of support legs for the beam 6 relative to the ground 60 with different degrees of instability relative to the ground 60 further include a third type of leg 5 that is in a ground support condition on a ground contact line 83 parallel to a transverse direction 73 relative to the longitudinal axis 58, where the ground contact line 83 is an intersection line between a contact surface having a cylindrical shape and the ground 60. This third type of leg 5 is constituted by the previously described trestle 5 for configuring the gymnastic device 10 in the form of an oscillating system in which the trestle 5 and the beam 6 are mutually fixed to each other. In this configuration, the non-slip element 24 for ground support is fixed to the base of the trapezoidal frame 31 within the previously described (Fig. 2, Fig. 3) insertion slot 86. Half of the section of the non-slip element 24 protrudes from the insertion slot 86, constituting the ground contact surface with a cylindrical shape, achieving the ground contact line 83 parallel to the transverse direction 73 relative to the longitudinal axis 58, where the ground contact line 83 is the intersection line between the contact surface having a cylindrical shape and the ground 60.

[0134] The gym equipment 10 comprises a coupling system 9, 14, 17 for mutual coupling between the beam 6 and one of the pairs of supports 1, 2, 3, 4 selected from the series of supports 1, 2, 3, 4, the coupling system 9, 14, 17 includes coupling means 7, 8, 9 arranged on the first head 21 and the second head 22 of the beam 6, countercoupling means 14, 15 arranged on each support 1, 2, 3, 4 of the selected pair from the series of supports 1, 2, 3, 4, and releasable locking means 13, 17, 18 for locking in the condition of mutual coupling between the coupling means 7, 8, 9 and the countercoupling means 14, 15. The coupling means 7, 8, 9 arranged on the first head 21 and the second head 22 of the beam 6 each consist of a coupling plate 9 on the first head 21 of the first end 11 and a coupling plate 9 on the second head 22 of the second end 12. The counter-coupling means 14, 15 consist of two counter-coupling plates 14, wherein each of the counter-coupling plates 14 is provided with a respective oblong and open housing 15 on one side in the form of a guide with an insertion mouth. The two countercoupling plates 14 are arranged in a configuration where the counter-coupling plates 14 are oriented with their respective insertion mouth of the housing 15 facing upward when the support 1, 2, 3, 4 is in the condition of ground support. The coupling plate 9 comprises two mutually spaced insertion portions 7 protruding laterally from opposite ends of the coupling plate 9 with respect to the longitudinal axis 58. Each insertion portion 7 is suitable for insertion into the two corresponding housings 15 of the countercoupling plate 14 of the support 1, 2, 3, 4, wherein each of the insertion portions 7 is further delimited by a respective transverse holding element 8, so that each insertion portion 7 is transversely locked from one side by means of the greater thickness of the coupling plate 9 and from the other side by a respective transverse holding element 8. The insertion portion 7 has a thickness corresponding to the width of the housing 15 but lower compared to the thickness of the coupling plate 9 and to the thickness of the transverse holding element 8 so that, in the condition of insertion of the insertion portion 7 into the housing 15, the insertion portion 7 is transversally locked by means of the greater thickness of the coupling plate 9 and the transverse holding element 8 with respect to the width of the housing 15. The insertion portion 7 constitutes a slide for insertion into the housing 15 by sliding in a coupling direction 59 that is an essentially vertical direction, so that the insertion portion 7 is inserted into the housing 15 with the coupling plate 9 and transverse holding element 8 transversely locking the coupling plate 9. The releasable locking means 13, 17, 18 for locking in the condition of mutual coupling between the coupling means 7, 8, 9 and the counter-coupling means 14, 15 include a locking opening 13 with longitudinal development centrally formed on the coupling plate 9 and a locking element 17 positioned on a connection plate 16 of the support 1, 2, 3, 4, wherein the connection plate 16 transversely connects the two counter-coupling plates 14 parallel to each other. In this way, the connection plate 16 is arranged parallel and frontally with respect to the coupling plate 9. The locking element 17 includes a lifting handle 19 by which the travel of a locking pin 18 between two positions can be controlled, wherein a first position is a retracted position within the dimensions of the connection plate 16, and a second position is an extended position in which the locking pin 18 protrudes relative to the connection plate 16 with the insertion of the locking pin 18 into the locking opening 13 with longitudinal development, so that the reciprocal movement between the beam 6 and the respective support 1, 2, 3, 4 is blocked in the vertical coupling direction 59.

[0135] The description of the present invention has been made with reference to the accompanying figures in a preferred embodiment thereof, but it is evident that many possible alterations, modifications, and variations will be immediately apparent to those skilled in the art in light of the foregoing description. Thus, it should be emphasized that the invention is not limited by the foregoing description but includes all those alterations, modifications, and variations in accordance with the appended claims.

[0136] NOMENCLATURE

[0137] 1. First support

[0138] 2. Second support

[0139] 3. Third support 25. Hole

[0140] 26. Base

[0141] 27. Cursor

[0142] 28. Knob

[0143] 29. Guide

[0144] 30. Graduation scale

[0145] 31. Frame

[0146] 32. Insertion space

[0147] 33. Cradle

[0148] 34. Bushing

[0149] 35. Protrusion

[0150] 36. Central cavity

[0151] 37. Recess

[0152] 38. Toothed roll or tensioner

[0153] 39. Lever

[0154] 40. Bar

[0155] 41. Flat knob

[0156] 42. Crosspiece

[0157] 43. Strap

[0158] 44. Fastening element

[0159] 45. Seat 46. Series of accessories

[0160] 47. First tubular accessory

[0161] 48. Second tubular accessory

[0162] 49. Flat accessory

[0163] 50. Smooth surface

[0164] 51. Rough or textured surface

[0165] 52. Elevation element

[0166] 53. Body

[0167] 54. Groove

[0168] 55. First side

[0169] 56. Second side

[0170] 57. Peripheral surface

[0171] 58. Longitudinal axis

[0172] 59. Coupling direction

[0173] 60. Ground

[0174] 61. First side

[0175] 62. Second side

[0176] 63. Hole

[0177] 64. First portion

[0178] 65. Second portion

[0179] 66. Transverse axis 67. Orthogonal axis

[0180] 68. Sixth support

[0181] 69. Screw

[0182] 70. Storage space

[0183] 71. Interference element

[0184] 72. Hollow

[0185] 73. Transverse direction

[0186] 74. First ground-adaptation direction

[0187] 75. Second ground-adaptation direction

[0188] 76. Contact area

[0189] 77. Interface

[0190] 78. Rotation axis

[0191] 79. Conduit

[0192] 80. Setscrew

[0193] 81. Ground contact axis

[0194] 82. Ground contact point

[0195] 83. Ground contact line

[0196] 84. Passage

[0197] 85. Plate

[0198] 86. Insertion slot

[0199] A. Angle r. Radius h. Height

Claims

CLAIMS1. Gym equipment (10) for performing exercises by a user comprising a beam (6) having an elongated shape extending along a longitudinal axis (58) with two opposite ends (11, 12), the beam (6) including a first head (21) at a first end (11) and a second head (22) at a second end (12), which is an end opposite to the first end (11) and to the elongated shape of the beam (6), the gym equipment (10) including legs (1, 2, 3, 4, 5) for ground (60) support in a condition where the beam (6) is at least partially spaced from the ground (60), the legs being equipped with a non-slip element (24) for ground (60) support, the beam (6) including a first upper side (61) constituting a primary training surface oriented upward, where the terms "upper" and "higher" are referred to in relation to the direction of gravity when the gym equipment (10) is in operational condition on the ground (60), characterized by the fact that the gym equipment (10) is a modular device in which the legs (1, 2, 3, 4, 5) are selectable from a set of mutually interchangeable legs (1, 2, 3, 4, 5) for releasable attachment to the beam (6), where the set of legs (1, 2, 3, 4, 5) includes different types of supporting legs for the beam (6) with respect to the ground (60) with varying degree of instability with respect to the ground (60), comprising at least:- a first type of leg (1, 3, 4) comprising pairs of supports selected from a series of supports (1, 2, 3, 4) for attachment to the opposite ends (11, 12) of the beam (6), where each support is in a condition of ground support on a series of ground contactareas (76) arranged on a ground contact axis (81), wherein each contact area (76) has a curved configuration in a first ground-adaptation direction (74) and in a second groundadaptation direction (75), achieving a stable condition with respect to the ground and the weight exerted on the beam (6);- a second type of leg (2) comprising pairs of supports selected from a series of supports (1, 2, 3, 4) for attachment to the opposite ends (11, 12) of the beam (6), where each support is in a ground support condition on a single contact point (82), wherein the contact point (82) is located at the intersection between a convex curved configuration in the first ground-adaptation direction (74) and a convex curved configuration in the second ground-adaptation direction (75) orthogonal to the first ground-adaptation direction (74), achieving a stable condition with respect to the ground and an instability condition with respect to the weight exerted on the beam (6) with oscillations of the beam (6) around the longitudinal axis (58).

2. Gym equipment (10) according to the preceding claim, characterized by the fact that the types of supporting legs for the beam (6) with respect to the ground (60) with different degree of instability with respect to the ground (60) further include a third type of leg (5) that is in a ground support condition on a ground contact line (83) transverse to the longitudinal axis (58), where the ground contact line (83) is a line of intersection between a contact surface having a cylindrical shape and the ground (60).

3. Gym equipment (10) according to the preceding claim, characterized by the fact that the third type of leg (5) is a trestle (5) comprising a flat frame (31) with a trapezoidal shape wherein the base of the trapezoid includes said non-slip element (24) for ground support, the trestle (5) including, at the opposite side with respect to the base for ground support, a cradle (33), and the cradle (33) being equipped with an insertion space (32) for inserting the beam (6), wherein the cradle (33) has a shape identical to the cross- sectional shape of the beam (6), so that the beam (6) in the inserted condition within the cradle (33) is laterally locked by walls of the cradle (33), the beam (6) including two seats (45) arranged on each of the mutually opposite second sides (62) of the beam (6) and orthogonal to the first side (61), so that the two seats (45) are mutually aligned transversely along a transverse axis (66) passing through the center of gravity of the beam (6), the two seats (45) being adapted for attaching the trestle (5) to the beam (6) by means of screws to configure the gym equipment (10) in the form of an oscillating system between two conditions of stable ground support in which the trestle (5) and the beam (6) are mutually fixed together.

4. Gym equipment (10) according to the preceding claim, characterized by the fact that the non-slip element (24) for ground support is fixed to the base of the trapezoidal frame (31) within an insertion slot (86) that develops parallel to the transverse axis (66) of the beam (6), wherein the insertion slot (86) has a rectilinear course, the insertion slot (86) having a semi-circular cross-sectional shape, so as to accommodate the non-slipelement (24) in the form of a tubular strip with a circular section that is fixed within the rectilinear section of the insertion slot (86), so that half of the section of the non-slip element (24) is inserted into the insertion slot (86), while the other half of the section of the non-slip element (24) protrudes from the insertion slot (86), constituting said ground contact surface with a cylindrical shape, achieving said ground contact line (83) transversely to the longitudinal axis (58) of the beam (6) and parallel to the transverse axis (66) of the beam (6), wherein he ground contact line (83) is the intersection line between a surface with a cylindrical shape and the ground (60).

5. Gym equipment (10) according to claim 1, characterized by the fact that the gym equipment (10) comprises a coupling system (9, 14, 17) for mutual coupling between the beam (6) and one of said pairs of supports (1, 2, 3, 4) selected from the series of supports (1, 2, 3, 4), the coupling system (9, 14, 17) comprising coupling means (7, 8, 9) arranged on the first head (21) and the second head (22) of the beam (6), countercoupling means (14, 15) arranged on each support (1, 2, 3, 4) of the pair of supports selected from the series of supports (1, 2, 3, 4), and releasable locking means (13, 17, 18) for locking in the condition of mutual coupling between the coupling means (7, 8, 9) and the counter-coupling means (14, 15).

6. Gym equipment (10) according to the preceding claim, characterized by the fact that the coupling means (7, 8, 9) arranged on the first head (21) and the second head (22) ofthe beam (6) are each constituted by a coupling plate (9) on the first head (21) of the first end (11) and a coupling plate (9) on the second head (22) of the second end (12), the counter-coupling means (14, 15) being constituted by two counter-coupling plates(14), each of the counter-coupling plates (14) being equipped with a respective oblong housing (15) open on one side in the form of a guide with an insertion opening, the two counter-coupling plates (14) being arranged in a configuration in which the countercoupling plates (14) are oriented with the respective insertion opening of the housing(15) facing upward when the support (1, 2, 3, 4) is in a condition of ground support, the coupling plate (9) comprising two mutually spaced insertion portions (7) laterally protruding from opposite ends of the coupling plate (9) with respect to the longitudinal axis (58), each insertion portion (7) being adapted for insertion into the two corresponding housings (15) of the counter-coupling plate (14) of the support (1, 2, 3, 4), each of the insertion portions (7) being further delimited by a respective transverse holding element (8), so that each insertion portion (7) is transversely delimited on one side by the coupling plate (9) and on the opposite side by a respective transverse holding element (8), the insertion portion (7) has a thickness corresponding to the width of the housing (15) but lower than the thickness of the coupling plate (9) and the thickness of the transverse holding element (8), so that, in the condition of insertion of the insertion portion (7) into the housing (15), the insertion portion (7) is in a transversely locked condition by means of the greater thickness of the coupling plate (9) and transverse holding element (8) compared to the width of the housing (15), the insertion portion (7)constituting a slide for insertion into the housing (15) by sliding in a coupling direction (59) that is an essentially vertical direction, so that the insertion portion (7) is inserted into the housing (15) with the coupling plate (9) and the transverse holding element (8) transversely locking the coupling plate (9).

7. Gym equipment (10) according to the preceding claim, characterized by the fact that the releasable locking means (13, 17, 18), for locking in the condition of mutual coupling between the coupling means (7, 8, 9) and the counter-coupling means (14, 15), comprise a locking opening (13) with longitudinal development centrally formed on the coupling plate (9) and a locking element (17) positioned on a connection plate (16) of the support (1, 2, 3, 4), wherein the connection plate (16) transversely connects the two counter-coupling plates (14) mutually parallel, so that the connection plate (16) is arranged parallel and frontally with respect to the coupling plate (9), the locking element (17) comprising a lifting handle (19) by means of which the excursion of a locking pin (18) between two positions can be controlled, wherein a first position is a retracted position within the space of the connection plate (16), a second position is an extended position in which the locking pin (18) protrudes relative to the connection plate (16) with insertion of the locking pin (18) into the locking opening (13) with longitudinal development, so as to block the mutual movement between the beam (6) and the respective support (1, 2, 3, 4) in the vertical coupling direction (59).

8. Gym equipment (10) according to any one of claims 1, 5, 6, 7, characterized by the fact that the first type of leg (1, 3, 4) comprises two ground contact feet (23), which are arranged transversely to the longitudinal axis (58) of the beam (6), each foot (23) being composed of a body (53) comprising a first side (55) and a second side (56) opposite, connected by a peripheral surface (57) which is curved underneath, the peripheral surface (57) being provided with a groove (54) that extends along a transverse direction (73) with a spiral pattern around the peripheral surface (57), the groove (54) having a semi-circular cross-sectional shape, so as to accommodate the non-slip element (24) in the form of a tubular strip with a circular cross-section wrapped within the groove (54) along the spiral configuration, in which half of the section of the non-slip element (24) is inserted into the groove (54) while the other half of the section of the non-slip element (24) protrudes from the groove (54) with a semi-circular shape.

9. Gym equipment (10) according to claim 5 and according to claim 8, characterized by the fact that the first type of leg (1, 3, 4) comprises a pair of first supports (1), wherein each first support (1) is equipped with said counter-coupling means (14, 15) and said two ground contact feet (23), wherein each of the feet (23) is attached on opposite sides of the counter-coupling means (14, 15) and extends transversely externally to the counter-coupling means (14, 15).

10. Gym equipment (10) according to any one of claims from 5 to 7, characterized bythe fact that the second type of leg (2) comprises a pair of second supports (2), wherein each second support (2) is equipped with said counter-coupling means (14, 15), the counter-coupling means (14, 15) being fixed superiorly to a base (26) in the form of a circular flange which is inferiorly provided with a ground support interface (77) centrally pivoted to the circular flange, so that the ground support interface (77) is rotatable in different rotational positions on a mutual axis of rotation (78) between the base (26) and the ground support interface (77), the ground support interface (77) being a semilunar-shaped bar in which a straight side of the bar faces towards the base (26) and a curved side of the bar faces towards the ground, the curved side of the bar includes a recess (37) where the recess (37) has a convex-arc shape, the recess (37) having a semi-circular cross-sectional shape so as to accommodate the non-slip element (24) in the form of a tubular strip with a circular cross-section that is fixed within the recess (37) along the convex arc shape, half of the cross-section of the non-slip element (24) being inserted into the recess (37), while the other half of the cross-section of the nonslip element (24) protruding from the recess (37) with the protruding part having an arc shape to obtain said contact point (82) which is located at the intersection between the convex curved shape in the first ground-adaptation direction (74) of the semilunar shape and the convex curved shape in the second ground-adaptation direction (75) of the circular cross-sectional shape of the non-slip element (24), wherein the first groundadaptation direction (74) is orthogonal to the second ground-adaptation direction (75).

11. Gym equipment (10) according to the preceding claim, characterized by the fact that the ground support interface (77) is centrally pivoted to the circular flange by means of a central protrusion (35) of the ground support interface (77) which inserts inferiorly into the base (26) within a central cavity (36) of the base (26), which is arranged at the center of the circular configuration of the circular flange constituting the base (26), so that the central protrusion (35) is free to rotate when in the condition of insertion into the central cavity (36).

12. Gym equipment (10) according to any one of claims 10 to 11, characterized by the fact that the ground support interface (77) further comprises two threaded conduits (79) for tightening two corresponding cursors (27), which include a plate (85) for releasable clamping of the base (26) between the plate (85) of the cursor (27) and the interface(77), achieving a releasable mutual fixation between the base (26) and the ground support interface (77), the cursors (27) being slidable within arc-shaped guides (29) symmetrically arranged on opposite sides with respect to the axis of mutual rotation(78) between the base (26) and the ground support interface (77), the base (26) being equipped with graduation scales (30) on each of the guides (29) for precise adjustment of the mutual rotational position between the base (26) and the interface (77) around the axis of rotation (78).

13. Gym equipment (10) according to claim 6 or 7, in combination with claim 8 or 9,characterized by the fact that the first type of leg (1, 3, 4) further comprises a pair of supports for a strap (43) consisting of a third support (3) and a fourth support (4), wherein:- the third support (3) comprises a respective bar (40) releasable for securing an end loop of the strap (43), wherein the bar (40) is positioned transversely between the two counter-coupling plates (14), the third support (3) further comprising crosspieces (42) for guiding the strap (43) to achieve a guided path of the strap (43) from the strap holding bar (40) towards an extension direction of the strap (43) to achieve a condition of parallelism between the strap (43) and the first surface (61) of the beam (6) with the strap (43) spaced and positioned superiorly and parallel to the first surface (61) of the beam (6);- the fourth support (4) comprises a toothed roller (38) driven by a lever (39) for attaching the strap (43), the toothed roller (38) constituting a ratchet strap for tensioning the strap (43), the fourth support (4) further comprising crosspieces (42) for guiding the strap (43) to achieve a guided path of the strap (43) from the toothed roller (38) towards an extension direction of the strap (43) to achieve a condition of parallelism between the strap (43) and the first surface (61) of the beam (6) with the strap (43) spaced and positioned superiorly and parallel to the first surface (61) of the beam (6).

14. Gym equipment (10) according to any one of the preceding claims, characterized inthat it comprises a series of accessories (46) including one or more accessories (47, 48, 49), the first side (61) comprising an anchoring system for anchoring the one or more accessories (47, 48, 49) on the first side (61) of the beam (6), wherein each of the accessories constitutes an element for modifying training characteristics of the training surface of the first side (61) of the beam (6).

15. Gym equipment (10) according to the preceding claim, characterized in that the first side (61) comprises a first portion (64) and a second portion (65), wherein both portions are equipped with said anchoring system for anchoring one or more accessories on the first side (61), so that the first portion (64) and the second portion (65) are configurable with accessories of different types from each other.

16. Gym equipment (10) according to any one of the preceding claims from 14 to 15, characterized in that the one or more accessories are selected from the series of accessories (46), which includes:- at least one flat accessory (49) in the form of a rectangular- section board with a smooth surface (50);- at least one flat accessory (49) in the form of a rectangular- section board with a rough or textured surface (51);- at least one flat accessory (49) in the form of a rectangular- section board with a smooth surface (50) on a first side and a rough or textured surface (51) on asecond opposite side;- at least one first tubular accessory (47) with a first diameter;- at least one second tubular accessory (48) with a second diameter larger than the first diameter.

17. Gym equipment (10) according to any one of the preceding claims from 14 to 16, characterized in that the anchoring system consists of threaded holes (63), the one or more accessories comprising screws (69) for attaching the accessories to the first side (61).

18. Gym equipment (10) according to the preceding claim, characterized in that the accessories are equipped with a screw (69) housing system which is an integrated housing system within the accessories (47, 48, 49) themselves, the screw (69) housing system comprising at least one storage space (70) formed within the accessory, wherein the storage space (70) is designed such that when a shaft of the screw (69) is inserted into the storage space (70), a head of the screw (69) protrudes from the storage space (70) for gripping and extracting the screw (69), the screw (69) being retained in the storage space (70) by interference with an interference element (71) that partially protrudes into the storage space (70) in an intermediate zone thereof with respect to the lengthwise development of the elongated storage space (70) to accommodate the shaft of the screw (69), the interference element (71) being inserted through a transversehollow (72) with respect to the lengthwise direction of the storage space (70), and the interference element (71) being in a partially protruding position within the storage space (70).

19. Gym equipment (10) according to the preceding claim, characterized in that the interference element (71) is made of a rubbery or elastomeric material.

20. Gym equipment (10) according to any one of the preceding claims from 14 to 19, characterized in that it comprises a pair of sixth supports (68) for fastening to one of the accessories selected from a series of accessories (46) for the use of said accessories independently of the beam (6), the sixth supports (68) being equipped with said nonslip element (24) having a circular or ellipsoidal cross-sectional shape, which extends transversely to the longitudinal development of the accessories when the accessories are in a fastened condition on the sixth supports (68).

21. Gym equipment (10) according to any one of the preceding claims, characterized in that the non-slip element (24) for ground support used for the supports of the gym equipment (10) is a strip of elastomeric material with a degree of deformability such as to allow compression to increase the frictional condition with a ground support surface as pressure increases.

22. Gym equipment (10) according to the preceding claim, characterized by the fact that the non-slip element (24) is made of a material selected from:- rubber material;- plastic material; - flexible thermoplastic elastomer, which is not subjected to thermoplastic treatment;- thermoplastic polyurethane with a rough surface and a hardness between 85 and 95 shore A, which is not subjected to thermoplastic treatment;- thermoplastic polyurethane with a smooth surface and a hardness between 85 and 95 shore A, which is not subjected to thermoplastic treatment.

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