DE102020111111A1 - Exercise device for improving the mobility of the joints of the lower extremities of people - Google Patents

Abstract

Training device for improving the mobility of the joints of the lower extremities of people, comprising a base support (1) which can be moved in its longitudinal direction on a mounting base with wheels (2), rollers or glides on the underside, a pedal (3) with a rear heel bed (4) and a front strap (5) or another fastening device for fixing a foot or shoe (6) thereon, the pedal (3) being fastened on the front side in a pivotable manner on at least one rocker (8) which is attached to a rear joint (7) on the base support ( 1) is fixed in a pivotable manner, whereby when the base support (1) moves forward, the pedal (3) with the rocker arm (8) can be set up by an angle of ≤ 90 ° by adjusting the angle of the foot depending on the sliding distance, and the rocker arm (8 ) can be lowered into the basic position with the pedal (3) and when moving the base support (1) backwards over the basic position around the front joint (9) on the Schwin ge (8) the pedal (3) with the heel bed (4) can be set up at an angle ≤ 90 ° depending on the sliding path of the base support (1) and can be returned to the basic position by pulling the base support (1) forward.

Description

The invention relates to a training device for improving the mobility of the joints of the lower extremities of people, at least having one base support that can be moved at least in its longitudinal direction on a mounting base with wheels, rollers or gliders on the underside and a pedal with a rear heel bed and a front belt or another Fastening device for fixing a foot or shoe to it, which pedal can be set up in the rear area of the base support around a joint running transversely to the longitudinal axis of the base support when the base support is advanced by the muscle power of the person's leg and can be lowered when retracting into the horizontal basic position.

From the WO 2015 185 792 a training device is known that increases the blood circulation and the metabolism in the knee, whereby in a sitting position with a pumping movement against a special suspension of a cradle a pedal mounted pivotably by means of a hinge on the back with simultaneous pushing of the cradle stands up and is lowered when you withdraw. The pedal has a heel bed on the back and a strap on the front with which a foot or a shoe can be fixed to it. The movement path of the training device is limited by storage in a box-shaped housing with a special bottom.

From the DE 295 00 737 U1 a therapy roller for restoring or improving joint mobility in the leg area is known, especially for knee joint diseases, which has a base plate in which at least two rollers are attached, which are mounted in roller holders and are adapted to the width of the base plate. The base plate is equipped with a conical or curved recess in the middle, into which the person can put the heel of their foot in order to be able to move the therapy roller back and forth.

From the US 2007 219 060 A1 a sewing machine type step foot exerciser is known which has a base frame, a pivot frame pivotably attached to the base frame, and two spaced pedals fixed to the pivot frame so as to be pivotable simultaneously with the pivot frame. Furthermore, a damping mechanism is provided between the base frame and the pivot point on the swivel frame in order to exercise a defined movement damping on the swivel frame. The user steps on the pedals with both feet at the same time to move the pedals and apply a force that overcomes the damping force of the damping mechanism to exercise and strengthen the muscles of both feet and legs of the user.

The invention is based on the object of developing an efficient training device that can be used in particular by people or patients in a sitting position in order to positively influence movement restrictions in the joints of the lower extremities and to restore or improve joint mobility. The training device should be designed in such a way that it can be used in particular after joint diseases and / or surgical interventions in the knee and hip joint and that the regeneration time is significantly reduced through intensive use.

The object is achieved by designing the training device according to the technical teaching specified in claim 1, according to which the pedal is pivotably attached to at least one rocker at the front, which is fixed to the base support so that it can pivot, the pedal with the rocker when the base support moves forward Can be set up by an angle of ≤ 90 ° by adjusting the angle of the foot depending on the sliding path, and when the foot is withdrawn the rocker can be lowered into the basic position with the pedal and the pedal when the base support is moved backwards over the basic position around the front joint on the rocker with the heel bed, depending on the sliding path of the base support, can be set up at an angle ≤ 90 ° and can be returned to the basic position by pulling the base support forward.

The active forward and backward movement of the foot using the training device has a positive effect on both the flexion and the extension of the leg. The training device is usually used while seated, but it is also suitable to be able to be used standing when the person is standing with one leg and foot on the floor and the other foot on the pedal. Furthermore, the training device can be used with a second training device for the simultaneous movement of both legs and feet of a person, seated as well as standing. Standing in particular when braking devices act on the provided wheels or rollers which are suitable for limiting the movement path of the two training devices in opposite directions. It can be seen that by using a rocker to which the pedal is pivotably attached, a movement of the joints is effected not only when the training device is moved forward, but in particular also when the training device has a central position or basic position in which the foot is aligned horizontally and parallel to the installation floor, is moved backwards. This makes it possible, for. B. the knee joint up to 140 ° to be able to spend a stretched position in an angled position.

Advantageous further developments of the invention are specified in detail in the subclaims.

In order to ensure the necessary stability of the training device, at least three wheels, rollers and / or sliders are provided on the underside of the base support, two of which run parallel, at the front or rear, are attached to the base support, and the at least third on the front. The wheels, rollers and / or sliders can, however, also be arranged reversed. In order to achieve optimal stability, however, four wheels, castors or gliders should be attached, two in pairs at the front and rear of the base support. The mountings of the bearings for these wheels, rollers and / or sliders can be provided in various designs on the base support. They can be screwed on the underside or attached to the side surfaces. If the base support has a frame structure, the wheels, rollers or sliders can be attached to cross braces or to longitudinal supports or strips of the frame. They must always be attached in such a way that they come into contact with the installation floor and can be moved on it.

In order to ensure a parallel alignment of the pedal to the installation floor in the basic position of the training device, the swing arm and / or the pedal in the basic position should take up stops on the base support, which ensure the desired alignment and the positioning of the pedal or the swing arm with the Do not hinder the pedal when it is pushed.

When using a base support with a frame structure, it is provided in a further embodiment that the base support can consist of two side walls which are connected to one another via at least one cross strut, with at least one rocker pivotably arranged with the rear end on an axis between the side walls and on a swivel joint is provided at its front end for pivotably fixing the front end of the protruding pedal. The cross strut can, for example, connect the two side cheeks to one another at the front and at the same time form the stop for the rocker arm or rocker arms. The rocker is or the wings are between the side walls at the rear end of the base support z. B. connected to one another via a shaft fixed in the side cheeks and then mounted so as to be pivotable. In principle, the rocker arms and the cross strut can also be attached reversed. Furthermore, it is possible to provide a continuous cross strut in the form of a surface element or a front and a rear cross strut, whereby the bearings for the rockers are to be attached so that the rockers can be raised unhindered and swiveled back into the neutral starting position. The frame structure can be made of wood, as can the rocker arm and the pedal, which in turn is pivotably mounted on it. Manufacture from other materials, in particular from plastic or metal, is also possible. Sheet metal or wood can be used for smaller series, and injection-molded parts made of plastic or metal for larger series.

In another embodiment it is provided that the base support is U-shaped at least in the area of the rear swivel joint of the rocker, the side cheeks protruding upward and having bearing points for the pivotable mounting of the rocker. The wheels or castors are attached to the front and rear of the underside of the base support. The rocker can be U-shaped at least in the area of the swivel joint on the base support, the side walls of which bear against the inner surfaces of the side walls of the base support and the swivel joint can consist of a shaft or axle mounted on the side walls of the base support or fastened therein, on which the rocker can be plugged with mounting holes in its side walls. The rocker can also be U-shaped at the front end and have bearing points on the side walls for a swivel joint on the underside of the pedal or on a support element for the pedal.

In order to enable simple and inexpensive manufacture, the side walls of the base support can also consist of U-profiles, the side walls of the U-profiles projecting upwards and a rocker arm with a U-profile being inserted into each of them, the outer widths of which are the clear Width of the U-profile of the base support are adjusted. These U-profiles are pivotably attached to the rear end of the side walls of the U-profile of the base support. On the front side, tabs can be provided protruding upwards on the side walls or they can be attached to the surface in order to be able to fasten the pedal to it in a pivotable manner. The pedal can also consist of a U-profile, the side walls of which point downwards or freely project upwards in order to be able to give the foot or the shoe a lateral support in addition to the support of the intended heel bed and that of the strap.

If, according to a further embodiment, the pedal is not pivotably mounted directly on the rocker, but rather on a carrier element which, for example, can also consist of a U-profile, there is the possibility that To divide pedal for adjustment to a shoe size, namely in a front section and a rear heel section. These two sections can be attached to the support elements of the pedal in a longitudinally displaceable manner. This is possible in a simple manner in that longitudinal slots are made in the carrier element, through which screws fastened to the sections are inserted, so that by means of a nut, e.g. B. a wing nut, the attachment can be made. This configuration can also be implemented if the pedal is attached to a carrier element that is inserted between two rockers and is pivotably mounted with the pedal on the joint on the rocker, but also when the carrier element is designed as a surface element and has bearing lugs on the Joint is mounted on one or more rockers.

In order to support the sequences of movements when setting up and lowering the pedal, at least one spring accumulator is provided in a further embodiment, which acts on the rocker in such a way that it stands up in an unloaded state through a person's foot and leg, and a spring accumulator on the pedal acts in such a way that it also stands up against the rocker in the unloaded state, and that to save the spring accumulators are tensioned by the weight of the foot and leg in such a way that they prevent the movement of the pedal and / or the rocker when pushing the forward and backward Support the base carrier. It can be seen that in this embodiment an increased pressure force has to be exerted on the pedal in order to ensure the desired setting up when moving forward and tilting up when moving backward. Through controlled settings, different loads can be exerted on the person's joints during the movement sequences, which can be beneficial for training and flexibility. The spring storage device (s) should therefore be adjustable.

In order to be able to increase or decrease the pushing and pushing force exerted on the training device, a further embodiment provides that an adjustable or fixed braking device acts on at least one wheel or roller on the base support when the base support is moved. This also makes it possible to force the training device to move on a curved path if, for example, only one wheel is braked. In order to enable a lateral displacement of the training device and a forward and backward movement or also to be able to drive curved tracks on the support floor, it is provided in a further embodiment that the wheels or rollers are inserted on the underside of the base support in bearing holders rotatable about vertical axes and above both a forward and backward movement as well as a curved movement as well as a lateral movement of the training device on the floor stand is made possible. Furniture castors can be used for this, as are known from swivel chairs. These, too, can be provided with braking devices and locking devices in order to prevent rotation about the vertical axis.

The invention is explained in addition using the embodiment shown in the drawings.

Figure list

• 1 a training device according to the invention in a photo-perspective side view with a shoe of a person not shown,
• 2 this in 1 shown training device in a photo perspective side view in a position of the person using the training device, which is advanced compared to the sitting position, not shown, with the pedal raised,
• 3 that in the 1 Training device shown in a photo perspective side view in a position pushed back with respect to a seated person with the pedal tilted forward and
• 4th that in the 1 to 3 shown training device in a photo perspective side view with raised pedal.

That in the 1 to 4th illustrated embodiment of a training device according to the invention consists of a base support 1 , which has a frame structure, and two side walls 10 and 11 formed in the front area via a cross strut 12 are firmly connected to each other. On the underside of the side panels 10 and 11 are wheel bearing holders 14th attached in which wheels 2 are rotatably mounted. The base carrier 1 stands with these wheels 2 on a shelf, not shown, for. B. the floor in a living room and can be moved lengthways on it. In the rear area of the base support 1 are in the side cheeks 10 , 11 Joints 7th provided, e.g. B. a fixed round axis or a shaft on which the between the side walls 10 , 11 inserted wings 8th are pivoted. The joints 7th also connect the side walls at the same time 10 , 11 in the rear. The wings 8th have anterior joints 9 on, which can also be realized by a shaft or an axis on which a carrier element 13 is pivotally attached to which a pedal 3 is attached. The carrier element 13 fits between the two wings 8th one and is on the side of the pedal 3 covered. In the basic position in 1 the pedal rests 3 with the Lateral protrusion areas on the top of the side wings 8th so how out 1 can be seen, the front ends on the cross brace 12 come to circulation. The shoe 6 in this position is aligned almost parallel to the installation floor. The shoe 6 is on the pedal 3 through the heel bed 4th and through the strap 5 fixed. The strap 5 can for example be realized by flat zipper elements.

The exercise device is placed at the side of a chair on which a person is sitting and the person puts their foot with or without a shoe 6 on the pedal 3 and fix it with the strap 5 It can be seen that the training device can be moved both forwards and backwards with the muscle force exerted by the leg. The wheels 2 cause the rolling movement and can be replaced by gliders. If the training device is moved forward, it can be seen that the swing arms automatically when the seated position is maintained 8th be set up, since the inclination of the foot changes when the base support is moved 1 changed. The pedal 3 so is around the joint 7th set up. The person's knee is stretched and the foot is pulled in. When the training device is withdrawn into the basic position, the knee joint is angled again and the ankle is set almost at right angles. If the person pushes the leg backwards, i.e. reduces the knee angle even further, the pedal tilts 3 in the out 3 apparent position. The ankle is stretched over 90 ° and the knee joint is brought into an acute angle. Because the shoe 6 on the pedal 3 is fixed, the training device can be removed from the 3 position shown and the pedal is lowered to the horizontal position.

Out 4th are the base carrier 1 and especially the joints 7th and 9 as well as the carrier element 13 on the pedal 3 clearly visible. 4th also shows that, for example, springs control the wings 8th reach under and also between the swing arm 8th and support element 13 Springs can be attached, if desired, to support the movements of the exercise machine and the pedal through the force of springs.

List of reference symbols

1

Base carrier

3

pedal

5

belt

7th

joint

9

joint

11

Sidewall

13th

Support element

2

wheel

4th

Heel bed

6th

shoe

8th

Swing arm

10

Sidewall

12

Cross brace

14th

Wheel bearing holder

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• WO 2015185792 [0002]
• DE 29500737 U1 [0003]
• US 2007219060 A1 [0004]

Claims (11)

Training device for improving the mobility of the joints of the lower extremities of people, at least having one base support (1) that can be moved at least in its longitudinal direction on a mounting floor with wheels (2), rollers or glides on the underside and a pedal (3) with a rear heel bed (4 ) and a front strap (5) or other fastening device for fixing a foot or shoe (6) to it, which pedal (3) in the rear area of the base support (1) around a joint (7) running transversely to the longitudinal axis of the same when the Base support (1) can be set up by the muscle power of the person's leg and can be lowered when retracting into the horizontal basic position, characterized in that the pedal (3) is attached pivotably at the front to at least one rocker (8) which is attached to the rear joint (7 ) is fixed to the base support (1) so that it can pivot, and when the base support (1) moves forward, the pedal (3) with the S The swing arm (8) can be set up by an angle ≤ 90 ° by adjusting the angle of the foot depending on the sliding path, and when the foot is withdrawn, the swing arm (8) can be lowered into the basic position with the pedal (3) and over when the base support (1) is moved the basic position backwards around the front joint (9) on the rocker arm (8) the pedal (3) with the heel bed (4) depending on the sliding path of the base support (1) can be set up at an angle ≤ 90 ° and by pulling the base support forward ( 1) can be returned to the basic position. Training device after Claim 1 , characterized in that at least three wheels (2), rollers and / or sliders are provided above on the underside of the base support (1), two of which run parallel, at the front or rear, are attached to the base support (1) and the at least third Wheel is arranged on the front or the wheels (2), rollers and / or sliders are arranged reversed. Training device after Claim 1 , characterized in that the rocker (8) and / or the pedal (3) in the basic position of the pedal (3) interact with stops on the base support (1) in such a way that the pedal (3) is aligned parallel to the floor . Training device after Claim 1 , characterized in that the base support (1) has two side cheeks (10, 11) which are connected to one another via at least one cross strut (12), that between the side cheeks (10, 11) at least one rocker (8) can pivot with the rear End is arranged on an axis forming the joint (7) and at its front end a joint (9) is provided for the pivotable fixation of the front end of the protruding pedal (3), or that the rocker arm and the cross strut are mounted reversed or a continuous Cross strut is provided in the form of a surface element or a front and a rear cross strut are provided, the bearings for the at least one rocker being attached to the side cheeks or the associated cross strut so that the at least one rocker is unhindered upwards and back into the neutral position Starting position can be swiveled back. Training device after Claim 1 , characterized in that the base support is U-shaped at least in the area of the rear swivel joint of the rocker, the side cheeks protruding upwards and bearing points for the pivoting mounting of the rocker, the wheels or on the underside of the base support in the front and rear areas Rollers are attached, and the rocker is U-shaped at least in the area of the swivel joint on the base beam or consists of two longitudinal beams, the side walls or the longitudinal beams resting on the inner surfaces of the side walls on the base beam and the swivel joint consisting of one on the side walls of the There is a shaft or axle mounted on the base support or fastened therein, on which the rocker arm with bearing bores in its side walls or in the longitudinal supports is attached, that the rocker arm is U-shaped at the front end or the longitudinal supports are connected to one another and that bearing points on the side walls for a dr are provided on the underside of the pedal or on a support element for the pedal. Training device after Claim 1 or 4th , characterized in that the pedal (3) is fastened to a carrier element (13) which is inserted between two rockers (8) and is pivotably mounted with the pedal (3) on the joint (9) on the rockers (8), or is attached to a carrier element (13) which is designed as a surface element or consists of at least one longitudinal beam and is pivotably mounted with bearing lugs on the joint (9) on one or more rockers (8). Training device after Claim 5 or 6 , characterized in that the pedal (3) is divided to adapt to a shoe size and consists of a front section and a rear heel section and that the two sections are attached to the support element of the pedal so as to be longitudinally displaceable relative to one another. Training device according to one of the preceding claims, characterized in that at least one spring storage device is provided which acts on the at least one rocker arm (8) in such a way that, in the unloaded state, it is supported by the foot and leg Person stands up, and that a spring accumulator acts on the pedal (3) or the carrier element (13) in such a way that it also stands up against the rocker (8) in the unloaded state, and that the spring accumulator is operated by the weight of the foot and the leg are tensioned in such a way that they support the movement of the pedal and / or the rocker arm when the base support is pushed back and forth. Training device after Claim 8 , characterized in that the spring accumulators are adjustable. Training device after Claim 1 , characterized in that an adjustable or fixed braking device acts on at least one wheel or a roller on the base support when the base support is moved. Training device after Claim 1 or 10 , characterized in that the wheels or rollers are mounted on the underside of the base support in bearing holders rotatable about vertical axes and this enables both a forward and backward movement and a curved movement and lateral movement of the training device on the floor.

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