Exercise Unit
The subject of the invention is an exercise unit that is simple, yet owing to its stable construction, can be easily used is various positions to perform various types of exercises at different difficulty levels irrespective of sex and age by practically anyone, from children to the elderly.
We are aware that numerous alternatives, such as training machines, training equipment and body building equipment, are available for physical training, muscle development and attaining a proper physical condition. Such alternatives are typically complex and relatively complicated equipment and machines, most being equipped with digital displays to meet current requirements.
The prior art is represented, for example, by a patent description published under No. JP9024117, whose subject is fitness equipment suitable for start-up loading during exercise.
The equipment intended for physical training under publication No. US5776039 also represents the prior art and is constructed from a base body, dual pivoted arms and a flexible device between the two arms.
Patent description No. JP2004016577 outlines equipment for indoor physical training intended for performing exercises with practically all parts of the body and a multitude of such exercises can be performed with ease.
Patent description No. FR2897782 demonstrates a solution falling closer to the invention. Its subject is an abdominal muscle training unit intended primarily for people with weak back muscles. The unit features two parallel tubes connected by a third tube perpendicular to the first two and equipped with sleeves. A handle is affixed on each end of the longer tube and, when connected, the two parts form an "L" shape. The handle allows training the abdominal muscles by stretching the spinal column. This
alternative differs in structure from the exercise unit demonstrated in the invention and allows performing fewer exercises.
The objective of the invention was to eliminate the deficiencies of already known solutions and to create a training unit that is simple in structure yet stable and safe, and can be used is numerous positions and suitable for performing numerous exercises without auxiliary devices that could have so far been performed in the gym only, e.g. pull-ups in a 45-degree angle, triceps strengthening, triceps in the seated position, negative push-ups with 1/3 body weight or negative push-ups with 2/3 body weight. It can be well used for personal training at home, requires minimum space and can be easily carried and stowed away in a folded position, apart from being economically manufactured.
The solution described in the invention is based on the idea that if we created an exercise unit that, in the initial position, has two parallel tubes resting on the floor and an H-shaped lower part constructed from a bracket perpendicular to the two tubes with the tubes interconnected by a non-releasable joint, two tubes parallel with the floor and an upper part perpendicular to it, including an interconnecting tube fixed by a non- releasable joint to be used for gripping; a middle section consisting of two parallel interconnecting posts connected to the lower and the upper sections, with the interconnecting posts connected to the tubes of the lower part and the middle of the tubes of the upper part by non-releasable joints, preferably fastened by U-sections, then the interconnecting posts connected to the tubes at a 40-90-degree angle and preferably at 70-degree angle; to ensure a proper grip 0-10 cm from the ends of the tubes of the upper part opposite the interconnecting tube, preferably 0.5 cm further in perpendicularly to the tubes with a grip handle, pointing at the floor, with a length appropriate for gripping that is preferably connected to the tubes by non-releasable joints, and the unit so created ensures stable use if rotated to the left or right by approximately 90-degrees in the floor plane, then such unit realizes the objectives of the exercise unit described in the invention.
In its most general embodiment, the exercise unit is implemented as described in Claim 1. Further embodiments can be implemented according to Claims 2 through 13.
The solution described in the invention is demonstrated in detail through figures where: Figure 1 shows an axonometric drawing of an advantageous embodiment of the exercise unit described in the invention in its initial position,
Figure 2 shows a lateral axonometric drawing of the exercise unit shown in Figure 1 when tilted left,
Figure 3 shows a lateral axonometric drawing of the exercise unit shown in Figure 1 when tilted right,
Figure 4 shows an axonometric drawing of a detail of the arrangement of one tube and one interconnecting post of the exercise unit shown in Figure 1 in the stowed position,
Figure 5 shows an axonometric drawing of a detail of the arrangement of the other tube and other interconnecting post of the exercise unit shown in Figure 1 in the stowed position
Figure 6 shows an axonometric drawing of the exercise unit shown in Figure 1 in the stowed position,
Figure 7 shows an axonometric drawing of the exercise unit shown in Figure 1 when affixed to the floor, Figure 8 shows an axonometric drawing of an advantageous implementation of the fastening rails.
Figure 1 shows an axonometric drawing of an advantageous embodiment of the exercise unit described in the invention, in the initial position. In this position, the exercise unit has two parallel tubes Ia, Ib, an H-shaped lower part constructed from bracket 2 being perpendicular to tubes Ia and Ib and interconnecting the same by a non-releasable joint, two tubes 3 a, 3b parallel to the floor, an upper part constructed from interconnecting tubes 4 fastened by non-releasable joints and being perpendicular to the same, to be used for gripping, and a middle part constructed from two parallel interconnecting posts 5a, 5b connected to the lower and the upper parts. The interconnecting posts 5a, 5b are connected by non-releasable joints to the tubes Ia, Ib of the lower part and to the interconnecting posts 5a, 5b at the middle section of tubes 3a, 3b of the upper part,
preferably using U-sections 6a, 6c, 6b, 6d for fastening. The interconnecting posts 5a, 5b are connected to the tubes Ia, Ib at a 40 to 90-degree angle and preferably at a 70- degree angle, i.e., their longitudinal section is rhomboidal. At 0.5 cm from the end of the tubes 3 a, 3b of the upper part opposite the interconnecting tubes 4, grip handles 7a, 7b of a length suitable of gripping are formed perpendicularly on the tubes 3a, 3b and point at the floor and are preferably connected to the tubes 3a, 3b by non-releasable joints. Each of the U-sections 6a, 6b, 6c, 6d shown in the figure has at least four holes and the lower U-sections 6a, 6c which open downwards, are connected to the tubes Ia, Ib through one external hole using fϊxing-releasing pins 8 or screws 9 ending in end- nuts, and through the other (inner) hole with joints releasable with screws 9 ending in end-nuts. Each of the upper U-sections 6b, 6d which open upwards, are connected to the middle of the tubes 3 a, 3b through one external hole with screws 9 ending in end-nuts, and through the other (inner) bore with fixing-rel easing pins 8 or joints releasable with screws 9 ending in end-nuts. The image clearly shows that the tubes 3a, 3b have circular cross sections at their ends and are preferably squared in their middle part, manufactured from a single section preferably produced by pressing.
To improve stability and to protect the legs of the user as well as to provide adequate space, the bracket 2 is connected by non-releasable joints to the tubes Ia, Ib in an offset position closer to the interconnecting posts 5a, 5b at 1/5-1/2 part of the length of the tubes Ia, Ib, preferably at 1/4 length. The bracket 2 can also be placed farther from the interconnecting posts 5a, 5b at the tube Ia, Ib ends but in this case stability will slightly decrease.
To eliminate unevenness of the surface and to protect the ground, there is at least one and preferably two plates at the lower surface of each of the tubes Ia, Ib that can be adjusted by screws positioned in non-threaded holes located near the ends.
The image also shows at least two rubber bumpers 11, fastened by releasable joints on the interconnecting tube 4, in order to protect the surface (being preferably flooring) and a plug 12, preferably made of plastic, used for plugging the ends of the square section
(tubes Ia, Ib) and the circular sections (tubes 3a, 3b, interconnecting tube 4, grip handle 7a, 7b).
Both the fixing and releasing pins and the screw 9 ending in an end-nut are preferably fastened by a retainer ring and such rings are fastened to each other and the unit by some material of adequate strength and flexibility (preferably a Bowden cable) to prevent being lost when not in use.
Figure 2 shows a lateral axonometric drawing of the exercise unit when tilted left. The exercise unit can be set in this position so that it is turned left in the floor plane by approximately 90 degrees from the initial position from the lower parts of the interconnecting posts 5a, 5b connected by the tubes Ia, Ib (in this case, by more than 90 degrees). If so, the exercise unit rests on the interconnecting tube 4 or on the at least two rubber bumpers 11 intended to protect the surface (preferably the floor), and on the surface of the tubes Ia, Ib near the bracket 2, and is stable for being used in its position tilted left. The figure also shows significant elements of the unit and their references, including the tubes 3a, 3b, U-sections 6a, 6b, 6c, 6d and grip handles 7a, 7b.
Figure 3 shows a lateral axonometric drawing of the exercise unit shown in Figure 1 when tilted right. The exercise unit can be set in this position so that it is turned right in the floor plane by approximately 90 degree from the initial position from the ends of the tubes Ia, Ib farther from the bracket 2 (in this case by more than 90 degrees). If so, the exercise unit rests on the surfaces of the tubes Ia, Ib farther from the bracket 2 and the surface of the ends of the tubes 3a, 3b under the grip handles 7a, 7b, and is stable for being used in its position tilted right.
The figure also shows significant elements of the unit and their references, including the interconnecting tube 4, interconnecting posts 5a, 5b and U-sections 6a, 6b, 6c, 6d.
Figure 4 shows an axonometric drawing of a detail of the arrangement of one tube Ia and one interconnecting post 5a of the exercise unit shown in Figure 1, in the stowed position. This is necessary when the exercise unit is not in use and you need to store it
in a small place, e.g., under the bed. In this case, the U-section 6a at the lower end of the interconnecting post 5a and the fixing and releasing pin from the external hole of the tube Ia (not visible in the figure) are removed, and the interconnecting post 5 a can be folded to the tube 1 a by turning it around the U-section 6a and the screw 9 ending in an end-nut, located in the inner hole of the tube Ia, which acts as the rotational axis. The figure also shows a plate 10 adjustable by a screw placed in the threaded hole located on the lower surface of the tube Ia.
Figure 5 shows an axonometric drawing of a detail of the arrangement of the other tube 3b and the other interconnecting post 5b of the exercise unit displayed in Figure 1, in the stowed position. In this case, the U-section 6d at the upper end of the interconnecting post 5b and the fixing-rel easing pin 8 from the inner hole at the middle of the tube 3b are removed, and the tube 3b can be folded to the interconnecting post 5b by turning it around the U-section 6d and the screw 9 ending in an end-nut, located in the external hole of the tube 3b, which acts as the rotational axis. The figure also shows that the fixing-releasing pin 8 and the screw 9 ending in an end-nut are fastened by retainer rings and a Bowden cable to prevent them from being lost when not in use.
Figure 6 shows an axonometric drawing of the exercise unit shown in Figure 1 in the stowed position when the unit is not in use. As outlined above, after the four fixing- releasing pins 8 have been removed, the interconnecting posts 5a, 5b can be folded to the tubes Ia, Ib, and respectively the tubes 3a, 3b along with the interconnecting tube 4 can be folded to the interconnecting posts 5a, 5b by turning them around the U-sections 6a, 6c at the upper ends of the interconnecting posts 5a, 5b and the screws 9 ending in end-nuts, in the inner holes of the tubes Ia, Ib respectively around the U-sections 6b, 6d at the upper ends of the interconnecting posts 5a, 5b and the screws 9 ending in end- nuts, in the external holes at the middle of the tubes 3a, 3b, acting as the rotational axis, and thus the exercise unit folds and rests on the plates 10 and the lower surface of the grip handles 7a, 7b and respectively the plugs 12 inserted therein.
Figure 7 shows an axonometric drawing of the exercise unit shown in Figure 1 when affixed to the floor. In case you wish to use the unit at a permanent location, e.g., in a
gym, the tubes Ia, Ib are inserted in the fastening rails 13 a, 13b affixed to the surface (floor) so the stable position as well as ease of swinging in both directions required for use, are ensured by the hinge-joints 15a, 15b, 15c, 15d. The fastening of the rails 13a, 13b to the floor can be implemented preferably by means of gluing but can also be achieved by drilling at least one threaded hole into the floor and the rails fastened using screws. Fitted to the ends of the tubes Ia, Ib through the tabs 14 formed at the ends of the fastening rails 13a, 13b with their cylindrical parts, the hinge-joints 15a, 15b, 15c, 15d are fastened by fixing-releasing pins 8, affording a stable and dislocation-free grip of the exercise unit. The figure shows the whole exercise unit and, in addition to the elements described above, the bracket 2, tubes 3a, 3b, interconnecting tube 4, interconnecting posts 5a, 5b, U-sections 6a, 6b, 6c, 6d, grip handles 7a, 7b and screws 9 ending in an end-nut are also visible.
Figure 8 shows an axonometric drawing of an advantageous embodiment of the fastening rails 13a, 13b. (One fastening rail 13a is marked in the figure.) Adjusted to the shape and the dimensions of the tubes Ia, Ib of the H-shaped lower part of the exercise unit, the fastening rail 13a is preferably formed into a U-section profile. Each tab (14) has a hole 16 with a diameter accepting the fixing-releasing pin 8, and respectively has recessed holes 17 at the bottom of the tubes Ia, Ib at the plates 10 for fastening the splines (flat part attached to the cylindrical part with a non-releasable joint) of the hinge-joints 15a, 15b, 15c, 15d using small screws.
The exercise unit inserted in and fastened the fastening rails 13a, 13b, as demonstrated in Figures 7 and 8, enters its stable position turned left from its initial position by turning it approximately 90 degrees left in the floor plane around the hinge-joints 15a, 15c located near the bracket 2 of the H-shaped lower part after the fixing-releasing pins 8 in the hinge-joints 15b, 15d farther from the bracket 2 of the H-shaped lower part have been removed, so the desired exercises can be performed.
If, in the initial position, the fixing-releasing pins 8 in the hinge-joints 15a, 15c closer to the bracket 2 of the H-shaped lower part are removed and the unit is turned
approximately 90 degrees right in the floor plane around the hinge-joints 15b, 15d farther from the bracket 2, the unit enters its position tilted right and is stable for use.
Based on the foregoing, the use of the exercise unit described above is as follows: The following exercises can be performed in its initial position (the H-shaped lower part rests on the floor):
Push-ups with approximately 1/3 of the body weight (eased push-ups)
In this exercise, the initial position is that the interconnecting tube 4 is gripped with stretched arms at an arbitrary grip distance with the body being nearly parallel to the interconnecting posts 5a, 5b, while the end position is the bending of the arms. In this case, approximately 1/3 of the body weight is used only, so children, elderly people or people in a weaker physical condition can also perform this exercise. (We are not aware of any other gym equipment that could be used to perform this kind of exercise.) - Thrusts
In this exercise, the initial position is that the interconnecting tubes 3 a, 3b are grabbed at the front (from the side of the grip handles 7a, 7b) with the hands, with arms stretched and knees bended (at approx. 45 degrees), while the end position is that the arms and the knees are bended at approximately 90 degrees. - Abdominal exercise while seated horizontally
In this exercise, the initial position is that while standing with the back to the unit, the interconnecting tubes 3a, 3b are grabbed with stretched arms, while the end position is that the legs are pulled up parallel with the floor to a horizontal seated position. - Abdominal exercise with leg pull-ups
In this exercise, the initial position is identical to the previous one, while the end position is that the bended legs are pulled up with the knees approaching the height of the navel. Abdominal exercise from a seated position to horizontal seated position In this exercise, the initial position is that while sitting with the back to the unit, the interconnecting tubes 3a, 3b are grabbed in the front, while the end position
is that the legs are stretched out parallel with the floor into a horizontal seated position.
Pull-ups at a 45 -degree angle
In this exercise, the initial position is that the interconnecting tubes 3a, 3b are grabbed in a stretched out position, standing on the heels with the arms stretched and facing upwards, and the end position is pulling up with approximately 50% of the body weight at an approximately 45-degree angle with bended elbows. This exercise is quite suitable for persons who cannot perform pull-ups in a vertical position at all. (This exercise could not be performed on earlier gym equipment, either.)
Strengthening the calves
In this exercise, the initial position is standing on the tubes Ia, Ib with legs astride and holding the tubes 3a, 3b in the front with slightly bended arms, while the end position is the strengthening of the calves standing tiptoe and taking hold with stretched arms.
Stretching the triceps
In this more difficult exercise, the initial position is holding the interconnecting tube 4 with an appropriate grip width in a leaning body position nearly parallel to the interconnecting posts 5a, 5b, leaning on the unit as if intending to push it away at full strength, and the end position is the performance of arm-bends to the back of the head in a body position closing an approximately 30-degree angle with the floor. (This exercise could not be performed on earlier gym equipment, either.)
The following exercises can be performed in the lateral position of the unit tilted left:
Negative push-ups
In this exercise, the initial position is grabbing the grip handles 7a, 7b in a stretched position leaning back, and the end position is the performance of negative push-ups with arm-bends. - Triceps in the seated position, eased
In this exercise, the initial position is grabbing the grip handles 7a, 7b with stretched arms and placing the bended legs on the bracket 2, while the end position is the performance of arm-bends with bended legs and arms. Triceps in the seated position, more difficult In this exercise, the initial position is grabbing the grip handles 7a, 7b with stretched arms and supporting the calves of the stretched legs at the lower surface of the tubes Ia, Ib, while the end position is the performance of arm- bends with bended legs and arms.
None of the exercises performed in the lateral position tilted left could be performed on gym equipment so far.
In the lateral position of the exercise unit tilted right, one exercise can be performed, namely push-ups with 2/3 of the body weight. In this case, the initial position is grabbing at an appropriate grip width (narrow or wide) the interconnecting tube 4 with stretched arms with a body position nearly parallel to the interconnecting posts 5a, 5b, while the end position is the performance of more difficult push-ups with bended arms. Compared to "traditional" push-ups, approximately 2/3 of the body weight is used only in this exercise. No such exercise could be performed on gym equipment so far.
At a preferred embodiment, the elements used for affixing the exercise unit described in the invention are made of square sections while the elements designed for grabbing have circular cross sections and, accordingly, the H-shaped lower part constructed from the tubes Ia, Ib and the bracket 2 are made of 40x40 mm square sections while the middle part, including the interconnecting posts 5 a, 5b are also made from 40x40 mm square sections, while the upper part, consisting of the tubes 3a, 3b, interconnecting tube 4 and grip handles 7a, 7b, is made of 5/4" circular section tubes. The middle part of the tubes 3 a, 3b is preferably constructed from 40x40 mm square section material since it is more stable and folding can be performed easier than in case of circular sections. (The task could also be solved using separate fastening-clamping elements but this would make production of the unit more complicated and expensive.)
To ensure adequate stability, the offset bracket 2 is located closer to the interconnecting posts 5a, 5b and thus there is more space for the legs of the user when performing the exercises.
The interconnecting posts 5a, 5b are preferably connected to the tubes Ia, Ib at a 70- degree angle since approximately such an angle ensures proper stability of the unit on the one hand and allows grabbing the tubes 3 a, 3b at an adequate grip width on the other hand.
The fixing-rel easing pins 8 are preferably steel rods 12 mm in diameter of toggle type, while the screws 9 ending in an end-nut, used for fastening the U-sections 6a, 6b, 6c, 6d to the tubes Ia, Ib and the middle part of the tubes 3a, 3b, are preferably also 12 mm in diameter.
In case the exercise unit is used in a stationary position only, or if sufficient storage space is available, the screws 9 are to be used instead of the fixing-releasing pins 8 and thus the unit will be rigid.
Located at the bottom of the tubes Ia, Ib fitted with adjustable screws, the plates, preferably made of plastic, ensure elimination of surface unevenness and protect the ground (flooring) (scratching, slipping of tiles).
The fastening rails 13a, 13b are profiles preferably made of 2 mm U-profile iron plates.
The square section elements of the unit connected by non-releasable joints and the circular section elements of the unit are preferably fastened by welding and the ends of the elements are preferably plugged using plastic plugs 12.
If required, the elements used for gripping can be coated with a slip-proof material such as wood, plastic or leather but any other appropriate material can also be used for this purpose.
Following finishing, the exercise unit described in the invention can be manufactured in any choice of color.
The exercise unit described in the invention achieved its objectives and has the following advantages:
Simple structure and stable,
Can be safely used in multiple positions,
Can be used by persons of different height and weight,
Can be used for performing numerous exercises (over ten), of which six (push- ups with 1/3 of the body weight, pull-ups at a 45-degree angle, triceps stretching, negative push-ups, triceps in a seated position — eased, triceps in seated positions - more difficult) could not be performed in the gym so far,
Can be used for personal training at home,
Easily portable (weighing approximately 13.5 kg) , - Requires little space,
Can be simply stored when folded (in this case, it is 15.8 cm high and 124 cm long),
Has a pleasing design,
Can be manufactured economically.