FR2861602A1 - ARMCHAIR OR MUSCULATION BENCH OF THE VERTEBRAUX PARA AND ABDOMINALS - Google Patents

Abstract

The present invention relates to a device for strengthening the para-vertebral and abdominal areas of an individual, of the type comprising a seat (5), a backrest (4), feet (13), a force element (2). , armrests (10), an adjustment lever (3), a rotation axis (9), removable foot rests (14), particular attachment systems for its spring element (2). The invention can, thanks to the adjustment device (3) choose to tilt the backrest (4) of the invention forwards or backwards, block it and, depending on the direction of tilt, choose to work against resistance variable thanks to the height-adjustable attachment system (6), varying the tension of the spring element (2) for the para-vertebral areas. For the work of the abdominals, the work is variable depending on the inclination of the backrest. Finally, the device can be manufactured with a more sporty orientation. In this case, the work of the abdominals can be done against adjustable resistance, thanks to specific arrangements.

Description

The present invention relates to the field of bodybuilding and more

  particularly to an integrated device in an armchair for the musculation of lumbar, dorsal, cervical para-vertebral areas, as well as abdominal muscles. The para-vertebral and abdominal weight training devices are intended to prevent back problems such as

  That's lumbago, sciatica, etc. Classically, the recommended exercises to strengthen such areas are exercises of bending of the trunk, extension of the trunk with the precaution of not working lumbar spine lordosis in case of back problems in the majority of cases.

  The present invention aims to provide a weight training device whose effort to provide the user can be adjusted in its intensity but also in its positioning.

  The present invention also aims to provide a weight training device integrated in a piece of comfort can be part of a living room furniture, or in a sportier version that can be integrated into a gym.

  The present invention also aims to provide a marking system allowing the user to perform his exercises with good positioning.

  The present invention also aims to provide fastening systems of the spring element forming part of the invention, to increase the life of it.

  To do this, the present invention relates to a device for strengthening the lumbar, dorsal, cervical para-vertebral zones of an individual, of the type comprising: a seat, a backrest on which is fixed a set of effort (E) consisting of a spring element, a bar / axis of rotation backrest / seat, a cylinder, a locking / unlocking system of the seatback angle and a headrest. It also relates to a device for allowing the bodybuilding of abdominals.

  The present invention is remarkable in that at the backrest junction on the outer part of the invention, and on at least one of the sides, there is a circular surface having two marking zones defining for one a angular angle of inclination of the backrest corresponding to the ideal inclination of work of the lumbar spine, denoted by one color, and for the other an ideal angular zone of work of the abdominal region, noted of another color. At the backrest, along its side edge, on the side where the marking areas are located, is placed a vertical mark for positioning the folder relative to these areas.

  The present invention is remarkable, in its widest acceptance, in that the device comprises at least one force assembly where the spring element comprises: a height-adjustable fastening element connecting the backrest to a blade; blade of rectilinear shape, related to the backrest and the seat by means of a fixing element at the top and a cylindrical fastening element at the bottom.

  The present invention is particularly notable in that the lower part of the system is formed by the joining of a blade and a cylinder. The blade tangentially crosses the cylinder, attached to the lower half of it. The invention also comprises a bar (or axis of rotation seated back) through the longitudinal axis of said cylinder, fixed only to the cylinder in the entire length thereof and passing in front of the blade.

  The cylinder, the lower part of the backrest and the rear part of the seat, are crossed by a bar or axis of rotation so as to secure the backrest assembly, cylinder blade, seat, in order to adjust the inclination of the backrest. the invention. The seat, the backrest and the cylinder are nested together according to a preferred embodiment of the invention in a sequence: seat, backrest, cylinder, backrest, seat.

  At one end of the axis of rotation is installed a control acting on a locking / unlocking system to block the angle of inclination of the backrest relative to the vertical. Thus it is possible to vary the angle between the backrest and the seat and then block the system to work with an adjustable counter-resistance. For example for the back, the user being seated, he pushes with his trunk by leaning against the backrest, backwards and against variable resistance according to a previously chosen angle.

  According to an advantageous embodiment of the invention, the angle of inclination of the backrest is adjustable from 0 to 30 forward relative to the vertical and 0 to 90 rearward, with a locking system to to limit the inclination of the backrest so that it does not exceed 90 backwards from the vertical.

  Preferably the spring element is a flexible blade with a length ranging from 50 to 80 cm and a variable thickness depending on the type of material used.

  Advantageously, the rectilinear blade is made of carbon or any other material having flexibility properties.

  Advantageously, the blade is used in the manner of a lever arm. The part of the blade located at the back of the backrest is connected to it by a system of attachment adjustable in height.

  Advantageously, the blade / back height-adjustable fastening system makes it possible to vary the tension of the spring element by varying the lever arm effect on the blade. It comprises in its front part a T-shaped piece accommodating at its horizontal portion in a vertical rail located at the rear part of the backrest, and a rectangular portion traversed by the blade and having in its rear part an orifice intended for a screw, the latter having the purpose of securing the blade by pressure to the adjustable fastening system. The vertical part of the T, is connected to the front part of the rectangle enclosing the blade.

  Advantageously, the lower part of the blade is fixed to a cylinder passing through it tangentially behind its long axis.

  Advantageously, the cylinder traversed by the blade has an opening corresponding to the passage of the blade. This opening depends on the type of material used for the blade and has four walls. The two lateral ones are vertical, the anterior and posterior walls are vertical on their lower half and tend towards the oblique one with a curvature inclined towards the front for the front wall and towards the back for the posterior wall, with a value of d angle of about 5 to 10 forwards or backwards from the vertical. The blade is attached to the cylinder in the narrowest part of its opening.

  Advantageously the bar or axis of rotation is welded to the cylinder block / blade, and is free from any attachment relative to the backrest and the seat.

  Advantageously a bar or rotation axis seat / back crosses successively from left to right, the rear part of the seat, the lower part of the backrest, the cylinder, the lower part 15 of the backrest, the rear part of the seat.

  Advantageously at its end is located a locking / unlocking system for adjusting the angle of inclination of the folder. Through the blade, the locking / unlocking system and the blade cylinder block are completely integral with the bar or axis of rotation. The back part of the seat and the lower part of the backrest are not secured to this same bar.

  Advantageously at one of its ends is a marking system intended to indicate ideal values of working angle to strengthen the back and abdominals.

  Advantageously, the rear feet of the seat are inclined backwards at an angle of 20 relative to the vertical.

  Advantageously, the seat comprises in its front part and therefore opposite to the backrest, a system of wedges movable feet, adjustable in length, allowing the user to rest his feet above, or to wedge them below to give a fixed point lower than the body to work the abdominals.

  Advantageously armrests are installed on the sides of the seat. They are not united in the file.

  Advantageously the backrest includes a headrest to improve the comfort of the chair and to allow participation of the cervical paravertebral muscles during the work of the entire back.

  Advantageously located at each rear foot of the chair, in their upper part and back, there are reinforcements for blocking the back of the chair when it is in the same plane as the seat, ie when it is inclined towards 1 back to 90 with respect to the vertical.

  Advantageously, the backrest has in its rear part at the top and on the sides of the removable feet intended to stabilize it when the folder is 90 relative to the vertical.

  Thus the user wishing to work the abdominals tilts the backrest to the working angles indicated by the side marker and if he wants to work at 90, pulls out the removable feet stabilizing the entire chair.

  Advantageously in the model with a sportier orientation, the backrest has height-adjustable handles allowing to have a resistance to effort for the work of the abdominals. These handles can be positioned at the backrest level by means of vertical rails placed in the back part of the backrest, making it possible to adjust the height of the handles and to suit any type of user.

  The present invention as described above relates to a device for strengthening either the para vertebral areas or the abdominal muscles.

  The invention will be better understood by means of the description, given purely for explanatory purposes, of an embodiment of a living room furniture version of the invention, with reference to the appended figures: FIG. 1 illustrates a view 3 / 4 rear of a device according to the invention to strengthen the para-vertebral or abdominal areas of a patient.

  Figure 2 illustrates a view of the marking system indicating the ideal angular areas of work of the back and abdominal muscles.

  Figure 3 illustrates a close-up and side sectional view of the ratio of blade, cylinder, axis of rotation or bar.

  Figure 4 illustrates a top view of the upper attachment system of the blade to the backrest and adjusting the intensity of the spring member.

  Figure 1 illustrates a device (1) for strengthening the lumbar, dorsal, and cervical para-vertebral areas, as well as the abdominal area of an individual. For the back it is a movement of the rear tilt of the trunk with a variable positioning and against resistance, adjustable thanks to a spring element (2), a system of adjustment of the intensity (6), and a lever of adjusting the inclination of the backrest (3); for the abdominals it is a forward movement of the variable intensity trunk by positioning change by means of the adjustment lever (3), the user can then choose to use or not the locking system of the feet (14).

  To do this, said device (1) consists of a backrest (4) of a seat (5) and a force assembly (E) comprising a flexible straight blade (2), preferably of carbon, fixed on the back (4) by an upper attachment system (6) having a clamping screw (6.1) for locking the blade (2). The upper attachment system in its part in relation to the back of the folder slides along a rail (7) fixed vertically on the back part of the backrest (4). The lower the fastening system on the rail, the shorter the lever arm of the spring element, the greater the effort required for the back muscles. In its lower part the blade passes through a cylinder, said cylinder is traversed by the blade (2) and by an axis of rotation (9). At the end of the axis of rotation (8) is placed a lever (3) for adjusting the inclination of the backrest to choose the correct working position.

  Thus for the work of the back, the user adjusts the backrest (4) forward with a preferred angle between 10 and 30, it then pushes with his back against the backrest while resting on his feet on the ground and on his hands resting on the armrests (10), against adjustable resistance of the force assembly (E) and if he wishes with the head thanks to a headrest (11) .. The work thus provided is dynamic at the start then becomes static thanks to the properties of the spring element (2). When the user ceases his effort, the file (4) then returns to its initial position of beginning of exercise.

  For the work of the abdominals, the adjustment device (3) allows the user to tilt the backrest (4) to the rear, to position the folder with a preferred angle between 45 and 90 from the vertical. The user uses the removable feet (14) by placing his feet on it, or under it if he wants to have. a fixed point at this level. The muscular movement is to bring the trunk forward, so against gravity. The greater the degree of inclination, the greater the effort required. In the sportier form the abdominals can work against resistance adjustable in intensity, thanks to a support on handles fixed at the backrest (not shown in the diagram).

  For more stability when the backrest (4) is 90 relative to the vertical, so flat in the extension of the seat (5), there is on each side of the backrest, above and back thereof, detachable feet (12) installed by the user when working the abdominals within the angular limits described above.

  Also for greater stability, the rear legs (13) of the seat (5) are obliquely rearward at an angle of 20 relative to the vertical.

  Finally, there is advantageously on the part located at the top and back of the rear legs of the invention reinforcements (17) for blocking the backrest (4) when it is flat in the extension of the seat (5).

  Figure 2 illustrates a marking device (M) forming part of the invention seen on the left side. Advantageously on the rear and lateral part of the seat (5), secured to that 35 and detached from the backrest (4), is a circular marking device (15) indicating two working angle zones (15.1, 15.2). Placed vertically on the lower and left side of the backrest (4) is inscribed a mark (16) defining the vertical axis of said folder. Thus to work the back muscles and to have a correct installation of the invention, the user adjusts the inclination of the backrest (4) forward at a defined angle through the mark (16) and the marking area (15.1) inscribed on the circular marking device (15). For the work of the abdominals, the user, for a correct installation of the invention, adjusts the inclination of the backrest (4) rearwardly at an angle defined by the mark (16) and the marking area (15.2 ). Ideally according to a preferred embodiment of the invention the area (15.1) for the work of the back muscles is between 10 and 30 forward with respect to the vertical. The area (15.2) for the work of the abdominal muscles is between 45 and 90 posterior to the vertical. This marking device allows the user to have good working angles.

  FIG. 3 illustrates a close-up sectional view of the relationships between the spring element (2), the cylinder (8), the axis of rotation (9), the fasteners (18) solidifying the spring element (2) and the cylinder (8), and the opening region (19) of the cylinder with the rearward inclination of its rear bank (19.1), and its front bank (19.2).

  Advantageously, the axis of rotation (9) is fixed to the cylinder (8).

  Advantageously the blade (2) is fixed to the lower half of the cylinder (8) by one or more fasteners (18), it is therefore free to move back or forward in the upper half of the cylinder to the front bank (19.2 ) or posterior (1 X9..1) of the inlet orifice of the blade present on the cylinder. Also, for example, when the spring element (2) recedes, it is based on a curve represented by the posterior bank (19.1), thus having a bearing area to avoid tiring the spring element on a single point . This system makes it possible to increase the life of the invention.

  FIG. 4 illustrates a sectional view of the relationship between the backrest (4) and the spring element (2), via a rail (7) fixed against the backrest (4), in which an element T-shaped (6.2) itself welded to a rectangular-shaped element (6.3), traversed by the blade (2). U clamp screw through the rear part of the fastener (6. 3) allows to secure the blade (2) to the fastening system and thus the backrest (4).

  Advantageously, the upper fastener by this preferred embodiment makes it possible not to tire the zone connecting the spring element (2) to the backrest (4). This system makes it possible to increase the life of the invention.

  The invention is described in the foregoing by way of example. It is understood that the skilled person is able to realize different variants of the invention without departing from the scope of the patent. Thus, for a model that is more interesting for sportsmen, the seat can be in the form of a weight bench that does not include armrests as described above and having footrests fixed on the lateral sides and at the lower part of the front feet. the invention, in order to provide effective lower back support to the user when working the back and abdominal muscles. The seat can be extended backwards relative to the backrest and thus increase the stability of the assembly. The folder can be a simple plan. The bodybuilding movements are the same as for the furniture version of salon with the added benefit of offering work of the abdominal muscles against resistance. To do this, it may include handles. These handles can be adjustable in height by means of vertical rails placed in the rear part of the file of the invention. J-shaped they are placed at the back of the backrest in the rails provided for this purpose. The long part of the J sliding in the rails, the short part of the J allowing handling and therefore the support of the user. Thus to work the abdominals against resistance the user installed on the invention brings the trunk forward bearing on the handles, he can then fix his feet in the footpegs located on the front part of the seat. The wedges can be adjustable in length to adapt to the morphology of the user.

25 3.0

Claims (9)

  1) A device for strengthening para-vertebral areas such as the lumbar, dorsal, and cervical zones, as well as the abdominal region, against resistance and with adjustable positioning, of the type comprising a headrest (11), a seat (5), a backrest (4) to which is attached a force assembly consisting of a spring element (2), a top fixing system (6) for increasing the service life of the spring element (2), a cylinder ( 8) having a particular opening (19, 19.1, 19.2), for increasing the service life of the spring element (2) and on which the blade (2) is fixed, an axis of rotation (9), a adjusting and locking lever (3) of the backrest angle of inclination (4) / seat (5), on the external parts of the axis of rotation being a marking system (M) indicating ideal zones of the work of the muscles concerned by the invention and a control lever (3), these elements being one or both sides.   2) Device according to claim 1 characterized in that it comprises at least one set of effort (E) wherein said spring element (2) comprises: an upper part fixed to the backrest (4), a lower part fixed to a cylinder (8), itself being traversed in its long axis by an axis of rotation (9), the spring element (2), the cylinder (8) and the axis of rotation (9) being integral in this lower part, the spring element having a rectilinear blade shape and preferably rectangular.   3) Device according to any one of claims 1 or 2 characterized in that it comprises a system for adjusting the inclination of the backrest (4) relative to the seat (5).   4) A device for strengthening the para vertebral and abdominal areas according to claim 1, characterized in that the spring element (2) is a blade (2) rectilinear for the work of the paratraternal muscles, a system of adjustment / blocking (3). ) inclination of the backrest (4) via the blade (2) relative to the seat (5) of the invention and a footrest system (14) removable for the work of the abdominals.   5) A device for strengthening the para-vertebral and abdominal areas according to claim 1, characterized in that the blade (2) is in the form of a lever arm, the upper part being fixed to the backrest (4), the part one cylinder cylinder (8), the tilt lock adjustment knob being located on the side of the invention.   6) device for strengthening the para vertebral and abdominal zones according to claim 2 or claim 3, characterized in that said blade is carbon or any other material having flexibility properties.   7) A device for strengthening the para-vertebral and abdominal areas according to any one of claims 4, characterized in that the upper part of the spring element (2) is fixed at the top by a fastening system (6) sliding in a rail (7) itself attached to the backrest, for varying the tension of the spring element (2), as well as a system for adjusting / locking (3) the backrest and seat of the invention.   8) Device for strengthening the para-vertebral area according to one of claims 1 to 5, characterized in that the rear legs of the invention (13) comprise reinforcements or stop members to block the back tilt back when it is in the same plane as the seat (5).   9) Device according to claims 1 to 6, characterized in that the invention can be installed in an individual as a living room furniture comprising removable footrests, a backrest (4) adjustable inclination, armrests, a support head, rear feet inclined backwards from 20 to the vertical. 20