DE102004033040B4 - exerciser - Google Patents

Abstract

Training device (1) for a person, with base frame (2) and with continuously rotatably movable actuating elements (5, 6, 20, 21) for each pair of arms and / or a pair of legs with crank arms (7) and at least one motor (8) for Driving and / or braking the actuating elements (5, 6, 20, 21), characterized in that the effective effective length L of at least one crank arm (7) is set to zero or almost zero, so that a limb bearing on this crank during the training does not perform any or only an insignificant movement.

Description

The present invention relates to a training device with continuously rotatably movable actuators according to the preamble of claim 1.

State of the art

Commercially available exercise or exercise therapy devices are known, which are equipped with motor-operated pedal and / or hand crank systems.

These training devices are designed for a total body workout and serve to strengthen the musculoskeletal system. They are mainly used in therapy, but they can also be used specifically to increase the performance of healthy people.

Both passive and active limb movements can be performed with these devices. In active training, the braking effect is in the foreground, in passive training, the drive effect.

Different arrangements of pedal and / or hand crank systems for generic training devices are among others in the writings DE 3415396 C2 . DE 3640274 A1 . GB 2349099 A . DE 3732905 A1 shown.

Purpose and advantages of the invention

The invention has for its object to provide a training device of the type described above, with which an improved training effect can be achieved.

This object is solved by the feature of claim 1. In the dependent claims advantageous and expedient developments of the invention are given.

First, the invention of a training device, which is constructed on a base frame, and continuously rotatably movable actuators for each pair of legs and / or a pair of arms with crank arms and at least one motor for driving and / or braking of the actuating elements comprises. The essence of the invention is that the effective effective length L of at least one crank arm is adjustable to zero or almost zero, so that a limb (arm or leg) bearing on this crank performs no or only insignificant movement during exercise. This can be done on the training device z. B. adjusting means are arranged, which are suitable for adjusting the effective effective length L at least one crank arm. Preferably, however, the effective lengths L of all crank arms are variable. The effectively effective crank length is the distance between a rotational axis of a crank and a rotatably mounted actuating part of the crank, z. As a handle or a foot pedal.

The present approach is based on the finding that a movement of a person exercising in the crank movement of the legs or arms in asymmetric stresses of muscle parts, for example, in one-sided disabled persons, for. B. after a stroke, causing a twisting of the torso. This effect occurs in particular when a specific side of the leg and / or arm area is to be trained. The limb which is not to be trained is left at the relevant crank, and should only move loosely with the rotation of the crank. This is cumbersome and in many people only very limited and only at the beginning of the exercise possible. As the training progresses, the loose, unrestrained movement of the limb that is not to be trained is reduced and, due to an uncoordinated movement, has a negative effect on the training. In half-sided paralyzes, z. For example, due to stroke, it can be extremely beneficial to set the healthy side to zero, forcing the affected side to learn, work actively, and give up restraint. Also, the performance metrics of the affected page will be accurate. The healthy side can stabilize at the anatomically best level in the center of the moving affected side.

With these adjustment means it is possible to adjust the length of the crank arm and thus to reduce the negative compensation processes in the movement with reduced load of certain limbs. For reasons of simplification, the term "crank arm length" is understood to mean the effective crank arm length in the following text.

The adjusting means can be designed such that they can be latched, displaced, pivoted or the like. You can change the effective length of a crank arm in step intervals according to a detent pattern or stepless effect. To lock the crank arm length screws, bolts, pins, clamps, fits and the like can be provided more.

The respective crank arms can be formed in one or more parts, and they can be releasably or non-detachably attached to its axis of rotation associated with the motor.

The crank arms may for example be formed in two parts, wherein in the region in which the two halves of the crank meet, a joint, a pivoting device, a sliding device or the like may be formed for the change in position of the two crank halves to each other. For example, in a pivotable embodiment, the half of the crank arm, which is farther from the axis of rotation of the motor, can be pivoted in the direction of the engine rotational axis with respect to the half of the crank arm closer to the axis of rotation in order to shorten the effective length of the crank arm.

For example, in the case of a crank arm that can not be changed in its absolute length, a displacement mechanism can be provided which causes the crank arm to be displaced along its longitudinal axis in the direction of the axis of rotation assigned to it and optionally beyond it. For a shortening of the effective length L of the crank arm is also possible. Of course, other embodiments for the adjustment are conceivable.

In a preferred embodiment, the adjusting means are formed so that the length of the crank arm is adjustable to zero, or that it is reducible to a much shorter length compared to a conventional crank length. As a result, the limb, which should be excluded from the movement, continue to the actuator such. B. handle or foot pedal, be hung without having to participate in the exercise movement or may.

The axis of rotation of an operating part on which a limb lies, z. As a handle or an outer shell, it is particularly advantageous by the axis of rotation of the crank of the other actuator for the leg and / or arm pair to be trained, so that the exerciser must make any change in posture, but the non-exercising limb is stationary. An immobilization of limbs is also in particular in parameter recording of the exerciser, such as blood pressure, lactate, oxygen saturation of the blood, delivered performance of advantage.

In a pivotable embodiment of the crank arm to the two halves, for example, be formed about the same length. By pivoting the radially outer half of the crank arm with respect to its radially inner half of the rotatable handle or the rotatable foot pedal in the region of the central, the rotor associated axis of rotation of the crank can be locked.

As a preferred embodiment, the adjustment can be designed as a quick-adjusting, so that the adjustment of the length L of the crank arm can be adjusted without tools, so to speak, in no time, without tools and / or Verlierteillos. An adaptation to different training situations is thus easily and time-saving possible.

The quick-adjusting means may be formed, for example, as an easy-to-use operating lever, which acts upon actuation corresponding to a locking unit releasing. After releasing. the actuating lever, the locking device can be effective again. In a simple embodiment, the locking device may be formed with a, a restoring force having element, for example a return spring which acts on a bolt.

To facilitate the length adjustment of the crank arm, the adjusting means can also be designed to be operated with one hand. This is for both pairs of actuators advantage. Thus, the exerciser with his healthy arm, or even a therapist, even during exercise to operate the respective adjustment accordingly.

For example, such a one-handed adjustment means can be realized by a handle or pedal near actuating or adjusting ring, which acts on the locking of the Kurbelarmverstellung.

It is regarded as particularly advantageous if the adjusting means are designed and arranged such that they can be operated without the hand having to be moved substantially into its rest or operating position. The adjusting means can thus be operated with the hand applied to the handle.

For example, the adjusting means for this purpose have an adjusting or actuating ring, which is advantageously arranged in the vicinity of the handle, that the exerciser presses only with one finger, for example the thumb or forefinger, against the adjusting ring and thus able to solve the locking mechanism. He then spends the actuator in the desired position and allows the adjusting ring to return to its locked position.

In order to use the adjustment for the change of the effective effective length L of the crank arm with a weakened limb, can further be provided an amplifying unit for the operation of the adjusting, so that a power-saving operation is possible. This reinforcing unit can be realized for example by the formation of a longer lever arm, which acts on the locking unit.

Disadvantages are also caused by a non-corporeal alignment of the limbs of the exerciser on the training device. Especially for large or small people, such. For example, for children with disabilities, it is difficult, if not impossible, to use exercise equipment built for people of average height.

In order to better meet the training needs of different sized people or growing people, such as children or adolescents, the distance between each of a motor operatively connected actuators for a pair of legs or for a pair of arms to each other on the base frame can be adjusted. In particular, in preferred embodiments, a common adjustment for motor and actuators may be provided. This is particularly advantageous when a separate drive is provided for each actuator, so that each actuator is independently activated by the rest. For this purpose, for example, various displacement mechanisms can be formed on the base frame. In simple embodiments, these may be, for example, tubes arranged coaxially with one another, which are linearly displaceable relative to one another and fixable by means of a locking screw or a pin.

In a special embodiment, in which at least part of the frame is column-shaped, the actuating elements for the pair of legs with associated motor can also be slidably adjustable in height on a column, in particular on an inclined column. This has the further advantage that the other elements of the training device can remain unchanged in their position, in particular the length of the column does not need to be changed.

Of course, more exclusive embodiments can also have the displacement movements and detents supporting means.

Regardless, however, can be provided in a very simple and inexpensive design, only one motor for all actuators, which acts by means of transmissions on individual actuators. If necessary, then the motor can also be adjusted separately from an actuator.

In a further embodiment, for example, the distance of the actuators for the pair of arms and / or for the pair of legs to a control position of a person on the base frame be horizontally adjustable, preferably also together with the engine in operative connection. Thereby, the distance can be optimally adjusted to the arm or leg length of the exerciser, which can take a preferred training effect attitude, especially if at the same time the legs are fixed in the foot shells or passive legs during arm training regardless of an arm movement or be moved actively.

With regard to the distance between the actuators for the pair of legs with the associated motor to an operating position of a person on the base frame, a horizontal and / or vertical adjustability is provided in a next embodiment. Preferably, they are designed as a separate unit without an operating unit for setting the therapy parameters. Thus, according to the leg length of the trainee, the distance between the foot pedals and an intended seat opportunity can be set.

drawings

An embodiment of the invention is explained in more detail in the following drawings, indicating further advantages and details.

Show it

1 a training device for a person with base frame and with the base frame continuously rotatory movable actuators for each pair of legs and / or a pair of arms with crank arms,

2 a sloping top view of the arm pair associated unit of the exercise device after 1 .

3 the motor-facing side view of the trained as a handle actuator from the 2 .

4 a top view of the handle after 3 .

5 the the 3 opposite side view of the handle after 2 .

6 one of the 4 corresponding figure with drawn section plane A / A for the representation of 7 and drawn arrow in the direction of movement of an actuating element in the unactuated state,

7 the sectional view to 6 .

8th one of the 6 corresponding representation, but in the actuated state with the drawn section plane B / B for the representation of 9 .

9 the sectional view 8th .

10 to 16 one opposite the 3 to 9 modified embodiment in the same views.

The 1 shows a side view of a training device 1 on a base frame 2 is built and an arm trainer 3 and a leg trainer 4 having. The arm trainer 3 has two trained as handles actuators 5 . 6 on. One in view in front of a motor 9 lying, the handle 6 associated crank arm 7 is designed as a multipart, pivoting crank arm. It is about an approximately in the middle of the longitudinal extent of the crank arm arranged pivot axis 10 so kinked that of a rotation axis 8th of the motor 9 remoter half of the crank arm with its handle axis 11 exactly in the axis of rotation 8th of the motor 9 lies (see also 2 ).

The second crank arm 7 of the handle 5 In contrast, it is arranged with the maximum length L of the crank arm in the fully extended position.

The arm trainer 3 is on the base frame 2 along an exemplary horizontal axis 12 displaceable. This is a detection means 13 in the form of a screw, a pin or the like on a receptacle 14 arranged in the horizontally movable unit of the arm trainer 3 is guided and by the locking means 13 can be fixed. The shift can be in the two directions of an arrow 15 respectively.

For vertical adjustment of the arm trainer 3 can be a longitudinal support 16 in a corresponding manner in a longitudinal guide 17 shifted and by means of a further locking means 18 be fixed in a desired position. The related possibility of moving the arm trainer 3 corresponds to the two by an arrow 19 shown directions, so that this displacement possibility both a vertical and also a horizontal change in the position of the arm trainer is possible. Of course, but also a completely vertical orientation of such adjustment would be conceivable.

The leg trainer 4 also has two actuators 20 . 21 which, in this case, are designed as foot pedals and by means of the cranks 7 with a rotation axis 22 an engine 23 are connected. These two cranks 7 Both are shown in fully extended length L.

To the leg trainer 4 with engine as the arm trainer 3 with motor linearly inclined upwards or downwards to adjust, he has a recording 24 on which the longitudinal guide 17 is formed encompassing. This can be the leg trainer 4 along a sloping axis 25 in the two directions of an arrow 26 moved and by a detection means 24A be fixed appropriately.

The longitudinal guide 17 is in turn in a foot element 27 of the basic frame 2 inserted and by a locking means 28 secured to it. The foot element 27 in turn has an extension 29 and a fixing agent 30 on, by which it may be supported for training use or at a fixing point, for. B. on a wheelchair or chair, can be attached. In addition, it still has a rolling agent 31 on, by means of which it is gently and effortlessly movable.

The leg trainer 4 is on the base frame preferably along a horizontal axis 12A displaceable. This is a detection means 13A in the form of, for example, a screw, a pin or the like on a receptacle 14A arranged in the preferably horizontally movable unit of the leg trainer 4 is guided and by the locking means 13A can be fixed. The shift can be in the two directions of an arrow 15A respectively.

The 2 shows more details of the arm trainer 3 , At the central axis of rotation 8th of the motor 9 are the two cranks 7 with the respective handle sections arranged thereon 5A . 6A shown. In this view, right in the front of the illustration, the folded crank arm 7 of the handle formed as an actuating element 6 recognizable. The handle 6 lies with his handle axis 11 directly in the axis of rotation 8th of the motor 9 , leaving a distance zero for the length of this crank arm 7 results.

At the left side of the engine 9 lies on its axis of rotation 8th arranged and outgoing from her the second crank arm 7 for the second handle section 5A , The crank arms 7 are designed in several parts and have adjustment 32 on, a pivoting of the handle side crank arm half about a pivot axis 33 allow the motor-side crank arm half in a dissolved state, so that a change in the effective length L of the crank arm 7 between the handle axis 11 and the axis of rotation 8th of the motor 9 results. The adjusting means 32 are in the present case by spring-loaded bolts 32B with associated holes, one in the pivot axis 33 arranged pivoting element, preferably a bearing 34 , and realized an actuating element. The on the adjusting means 32 acting actuating means are in the form of an adjusting ring 35 trained and act by means of a lever translation 32A on the spring loaded bolt 32B ,

By the operation of the adjusting ring 35 in a direction of movement according to an arrow 36 becomes the spring-loaded bolt 32A solved and the handle half of the crank arm 7 can be in the direction of the axis of rotation 8th according to the direction of an arrow 37 be pivoted radially inwardly. However, it is also conceivable to bring about an unlocking with the adjusting ring in a direction opposite to the illustrated adjustment direction (see embodiment in FIGS 10 to 16 ). Then the pivot axis needs 41 for the adjusting ring 35 be relocated.

In 2 is in dashed line a relation to the embodiment shown in full view by 90 ° pivoted position of a handle portion 5 ' shown. After another pivoting 90 ° in the same direction would the handle section 5 ' like the handle section 6A with the handle axis 11 in the axis of rotation 8th of the motor 9 to come to rest. The difference between the right and left grip would then be just the alignment of the crank arm 7 , At the left handle 5 . 5 ' then point the two crank arm halves forward, and the right handle 6 show the two halves of the crank arm 7 to the rear. Overall, thus three pivoting positions of the handles with crank arms 7 realizable.

With the three described pivoting positions of the two halves of the crank arms 7 are three different radii for the actuators adjustable. The largest is the radius 38 , the smallest is not a radius per se, because then the distance is zero. Here is the handle axis 11 directly in the axis 8th of the motor 9 , Between these two can still the radius 39 can be adjusted, in which the parts of the respective crank arm are at right angles.

The 3 to 7 show two side views and a top view of the handle 5 with multipart crank arm 7 , In the picture 3 are around the camp 34 around three holes distributed 40 to recognize, in which the spring-loaded pin 32A after appropriate pivoting of the handle half of the crank arm 7 can engage. The right of the camp 34 arranged hole 40 is for the maximum length L of the crank arm 7 provided as a fixing point. The one in the representation below the camp 34 shown hole is for the right angle bent position of the crank arm 7 provided as a security point and the left hole 40 in the case where the distance of the effective crank arm is zero, as in the handle 6 in 2 ,

In the 4 is the one on the front of the adjusting ring 35 arranged lever axis 41 recognizable by which the adjusting ring 35 is pivoted to the spring-loaded bolt 32B Raise it so far that it's out of the hole 40 is pulled out to the locking of the crank arm 7 release. As the front is doing the the actuator 5 facing side understood. Then the bolt can 32B in stock 34 around the pivot axis 33 in one of the two directions of the arrows 42 , as described, be pivoted.

The 5 shows the view from the opposite side of the representation of 3 ,

The 6 shows a corresponding representation as in the 4 with an additional arrow 36 that the actuating direction of the adjusting ring 35 represents. The 7 shows the sectional view after the section AA from the 6 , Here are a pen 43 and the bolt 32A exposed. The bolt 32A Approximately one quarter goes into its assigned hole 40 for the realization of the locking effect. The adjusting ring 35 is with its main element 44 with which it is operated, aligned horizontally.

The 8th shows the handle 5 with the crank arm 7 with activated adjusting ring 35 , This is in contrast to the representation of 6 with its main part 44 , So the part with which it is operated, inclined obliquely downwards, so that no finger is pinched, if during the crank movement, the crank arm length is adjusted, so that is behind the pivot point of the lever axis 41 located part of the adjusting ring against the spring force lifts up and the bolt 32A out of the hole 40 pulls out. The section BB is in the representation of 9 to see. Here is the opposite to the representation in the 7 compressed spring 43 recognizable. The bolt 32A is completely out of the hole 40 pulled out, the handle section 5A could now with his assigned half of the crank arm 7 around the pivot axis 33 , as described, be pivoted.

In the in the 10 to 16 illustrated embodiment is the lever axis 41 , from the actuator 5 Seen from the back of a recording 45 arranged. An adjusting ring 47 is different from the angled shape of the adjusting ring 35 Shown here flat by way of example. To operate the bolt 32A must the adjusting ring 47 to the handle section 5A used. The positioning of the lever axis 41 and the shape of the adjusting ring 35 . 47 are ultimately of the geometry of the adjustment 32 and a well and easily operable lever travel or the confirmation direction, which in the 13 and 15 through an arrow 46 is shown.

LIST OF REFERENCE NUMBERS

1

exerciser

2

base frame

3

arm trainer

4

leg trainer

5

actuator

5A

handle portion

5 '

handle portion

6

actuator

6A

handle portion

7

crank

8th

axis of rotation

9

engine

10

swivel axis

11

handle axis

12

axis

12A

axis

13

Locking means

13A

Locking means

14

admission

14A

admission

15

arrow

15A

arrow

16

longitudinal support

17

longitudinal guide

18

Locking means

19

arrow

20

actuator

21

actuator

22

axis of rotation

23

engine

24

admission

24A

Locking means

25

bent axis

26

arrow

27

foot element

28

renewal

30

fixer

31

rolling means

32

adjustment

32A

leverage

32B

bolt

33

swivel axis

34

camp

35

adjusting

36

arrow

37

arrow

38

radius

39

radius

40

drilling

41

lever axis

42

arrow

43

feather

44

main element

45

admission

46

arrow

47

adjusting

Claims (9)

Exercise Device ( 1 ) for one person, with base frame ( 2 ) and with continuously rotatably movable actuators ( 5 . 6 ; 20 . 21 ) for each pair of arms and / or a pair of legs with crank arms ( 7 ) and at least one engine ( 8th ) for driving and / or braking the actuating elements ( 5 . 6 ; 20 . 21 ), characterized in that the effective effective length L of at least one crank arm ( 7 ) is adjustable to zero or nearly zero, so that a limb bearing on this crank performs no or only insignificant movement during the exercise. Training device according to claim 1, characterized in that adjusting means ( 32 ) for adjusting the effective effective length L of the at least one crank arm ( 7 ) as a quick-adjusting means for tool-free and / or Verlierteillosen adjustment of the length L of the crank arm ( 7 ) are formed. Training device according to claim 1 or 2, characterized in that the adjusting means ( 32 ) are designed such that they can be operated with one hand. Training device according to claim 1, 2 or 3, characterized in that the adjusting means ( 32 ) are designed and arranged so that they can be operated without having to move the hand substantially from a rest or operating position on a handle of the crank. Training device according to one of the preceding claims, characterized in that the adjusting means ( 32 ) have an amplifying unit for a power-saving operation. Training device according to one of the preceding claims, characterized in that the distance of each of which is operatively connected to a motor actuating elements for a pair of arms ( 5 . 6 ) or for a pair of legs ( 20 . 21 ) is adjustable to each other. Training device according to one of the preceding claims, characterized in that the actuating elements, which are in operative connection with a motor, for the pair of arms ( 5 . 6 ) and / or for the leg pair ( 20 . 21 ) horizontally displaceable and lockable on the base frame ( 2 ) are arranged. Training device according to one of the preceding claims, characterized in that the actuating elements ( 20 . 21 ) for the pair of legs with associated motor as a separate unit, without a control unit for setting the therapy parameters, on the base frame ( 2 ) are height adjustable. Training device according to one of the preceding claims, characterized in that the actuating elements ( 20 . 21 ) for the pair of legs with associated motor sled-like on a column, in particular on an inclined column, are height adjustable.

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