WO2013004734A2

WO2013004734A2 - Exercise device

Info

Publication number: WO2013004734A2
Application number: PCT/EP2012/063007
Authority: WO
Inventors: Olaf Peters
Original assignee: VARIOSPORTS GmbH
Priority date: 2011-07-04
Filing date: 2012-07-04
Publication date: 2013-01-10
Also published as: DE102011051535A1; WO2013004734A3; WO2013004734A9

Abstract

The invention relates to an exercise device comprising at least one elongate part whose length can be adjusted. At least one wind-up device is fixed to an object by means of fastening means and has a shaft for winding and unwinding the elongate part, a first end of said elongate part being fastened to the shaft. The exercise device further comprises a locking device for releasably immobilizing the elongate part in various positions relative to the wind-up device.

Description

Title: Exercise machine

The present invention relates to an exercise device with at least one length-adjustable, elongate member.

Such training devices offer the opportunity to train the whole body in terms of strength, muscle, coordination, stability, flexibility and / or core training through a variety of possible exercises. By using the exercise machine, the training is performed only with your own body weight against the resistance of gravity. The use of additional weights is therefore not necessary. The exercise device can be used by top athletes, amateur athletes as well as physiotherapists.

In this type of exercise equipment, the elongate member is fixed at one end to a fixed object. The other end of the elongated part is used by the user. Depending on the training exercise to be performed with the exercise device, the length of the elongated part may be changed by the user. If the user has set his desired length of the elongated part, this position is fixed and held by a blocking device. The blocking device must be designed to withstand the user's exercise and prevent length change of the elongate member during use.

Exercise machines of this type are already known from the prior art in a wide variety. From EP 1945319 AI, for example, an exercise device is known that has an inelastic, elongate member to which a handle is attached, and in which the length of the inelastic part is variable in certain areas. The disadvantage here is that the entire elongated part is always visible and therefore the exercise device after use, especially if it is used in living rooms, for visual reasons and because it is often perceived as disturbing in the door opening, must be removed so it does not the environment is disturbing. Furthermore, a length adjustment is very time consuming and cumbersome. It is solved by knots or clamping elements, which usually have to be adjusted at two points and then leave an unused belt or band element. The user wants the length of the inelastic Changing part, he has to perform this each time consuming by two clamping buckles and thus fix in the desired position. In addition, the adaptation of two independently arranged bands to the same length is very time consuming, whereby the training fuss z. B is disturbed in a group.

Since parts of a defined length are located next to the adjustable parts on the device, the maximum and minimum length of the elongate part or of the entire device can only be changed as far as the adjustment possibilities permit. This leads to limitations in exercises and the required training space, since the body is always in a triangular position with the device. The economic component is another disadvantage of existing equipment. On the one hand, more webbing material must be used, since webbing is required for both attachment and length adjustment. On the other hand, the wear of this construction is much higher because during training a friction acts on the webbing or rope in the adjustment device.

Furthermore, the localized suspension is often inflexible in previous devices. They can only be used for a permanent installation or an undefined suspension. Often, pull-up bars, hooks or special brackets are used. The suspensions also do not always provide the necessary support, e.g. a housing, can deliver.

It is an object of the present invention to provide an exercise device that is compact, can be adjusted quickly and easily, so that with the

Exercise device a variety of individual exercises are executable and it can also be used by a variety of users and thus individually adapted to the needs of the individual. Furthermore, an optimal training effect can be achieved by maximum length adjustment on the smallest training room. Furthermore, the exercise device should fit optimally into its environment, so that it does not have to be removed every time when not in use, but can remain stuck and the interior design of the rooms little disturbs. This object is achieved by an exercise device having the features of claim 1. The exercise device according to the invention has at least one length-adjustable, elongated member and is characterized in that at least one roll-up device is provided, which is fixed by means of fastening means to an object and a shaft for Up and unwinding of the elongated member, wherein the elongate member is attached to a first end of the shaft and that at least one blocking device for releasably fixing the elongated member is provided in different positions with respect to the retractor.

Advantageous embodiments are the subject of the dependent claims. It should be noted that the features listed individually in the claims also across the various categories of claims in any, technologically meaningful way can be combined and show other embodiments of the invention.

With adjustable length in the context of the invention is meant that the portion of the elongate member which is located outside of the retractor can be changed in its length by the winding and unwinding and not that the absolute length of the elongate member is changeable.

The elongated part of the exercise device according to the invention is preferably designed as a belt. But it is also possible that the elongated part can be a rope or a band. The elongate member may be constructed of both an elastic and an inelastic material. The elongated part has a first and a second end. The first end is connected to the shaft of the retractor, the second end is a free end.

In the present invention, the elongated part of the exerciser can be rolled up between an initial position and an end position. In the initial position, the first elongated part of the shaft is completely or partially unwound. In the end position, the elongated part is wholly or partially wound on the shaft, but at least stronger wound up in relation to the initial position. Between the beginning and the end position, the oblong part can be replaced by the

Locking device can be fixed in any intermediate position. and remains in this position until the blocking is released again. The blocking device is designed such that it holds the weight of the user in the exercises and does not dissolve under both load and without load. A change in length of the elongate member during use is prevented by the blocking device.

In a preferred embodiment, the retractor comprises a housing. The housing is not limited to any particular shape or material. Preferably, a housing is used which has a lateral surface and two base surfaces. The housing has at least one opening, preferably an elongate opening. Through the opening, the elongated part emerges from the housing. The elongate member is selectively guided by the opening arranged in the housing. When winding up, it is therefore possible, for example, to prevent the elongated band from winding onto the shaft in a twisted state. Particularly preferably, the opening extends obliquely to the axial direction of the shaft. In an advantageous embodiment, the angle between the axial direction of the shaft and the course of the opening in a range between about 10 ° and 70 °. In a particularly advantageous embodiment, the opening is designed sickle-shaped. The oblique or crescent-shaped opening reduces frictional forces and bruising between the elongated part and the housing during training. In a further preferred embodiment, the housing has two openings, which constitute a guide for two elongated parts and prevents twisting and touching of the two elongated parts between opening and retractor during winding and unrolling and during training. Wear and tear of the exercise device according to the invention are thus reduced and the life of the exercise device increases.

The blocking device may be arranged on the retractor and / or on the elongated part.

In a preferred embodiment, the blocking device has gear elements. In a particularly preferred embodiment, the

Blocking a pawl and a cooperating with the pawl teeth. If the pawl is engaged with the teeth, so is an unwinding or unwinding of the elongated member is not possible. Once the pawl is disengaged from the gearing, unwinding or unwinding of the elongate member on or from the shaft is possible. Advantageously, the pawl is spring-biased. In a particularly preferred embodiment, the pawl rotates with the shaft, ie the pawl is mounted on the shaft. By the rotation of the generally in comparison to the teeth providing heavy parts, such as at least the pawl and the associated storage advantageously the moment of inertia is increased with respect to the axis of rotation of the shaft, so that when winding the acceleration is reduced. A resulting by a jerky winding, uncontrolled snap back of the elongated member can be avoided. In a preferred embodiment, the pawl is more toothed in the unwinding than in the winding. This can prevent contact loss on the gear.

In a further embodiment, the blocking device comprises, in addition to the pawl, a rotating with the shaft, but relative to the shaft between a release and locking position and thus limited rotatable blocking wheel, which is preferably spring-biased, and cooperating with the blocking wheel brake lever, wherein the brake lever the blocking wheel releases and / or blocks via an actuating button. Preferably, the brake lever is spring biased against the blocking wheel and the actuation of the actuating button causes against the bias the release of the blocking wheel.

In a preferred embodiment, the Blockerierrad is blocked in the up and in unwinding by the brake lever. In a further preferred embodiment, the teeth of the blocking wheel and the recesses of the brake lever are arranged coincident so that they block equally in the up and unwinding.

The blocking wheel is arranged coaxially with the shaft and rotatable relative thereto between a release position in a locking position. Furthermore, the

Blocking a driver, which cooperates with the pawl to effect in the locking position, the engagement of the pawl in the toothing and to disengage in the release position, the pawl out of engagement with the toothing bring. When the blocking wheel is blocked and the shaft is unwound, for example by pulling on the elongated part, there is a relative movement of the blocking wheel into the locking part. When released blocking wheel the blocking wheel is spent by the winding and / or its preferred spring preload in the release position.

In one embodiment of the present invention, a pin is used as a blocking agent. The shaft preferably has at least one hole, which particularly preferably runs parallel to the axis of rotation of the shaft. But it is also possible that not the shaft itself has holes, but one firmly connected to the shaft plate, which is in particular fixedly disposed on at least one base of the shaft. Furthermore, the housing has at least one hole and assumes the role of an abutment. The hole in the shaft or in the plate must be arranged to the hole in the housing so that the holes can be brought into coincidence in at least one position. In this position, the pin can be inserted into both holes and connects the housing and the shaft form-fitting with each other, so that the shaft can not be rotated in this position. In principle, it is possible that the shaft and / or the housing each have a plurality of holes. The cross sections of the holes may be, for example, oval, round or rectangular.

In a further advantageous embodiment of the present invention, a clamping closure is used as blocking means. The clamp closure is attached to the elongated part. In order that the length of the elongated part after attachment of the clamp closure can not change, this must be fixed so that it prevents winding or unwinding of the elongate member. The fixation of the elongated part can be achieved in that the clamping closure is surrounded by delimiting elements or abutments in both the reeling and unwinding directions. The delimiting elements may be U-shaped webs. But it is also possible that the clamping closure is limited only in the unwinding of webs; in the retraction then the retractor serves as an abutment and prevents movement of the terminal closure in this direction. So that the clamp closure on the elongated part is really tight, it can be designed on its inner sides, the sides which face the elongate part, so that the greatest possible frictional force exists between the clamp closure and the elongate part. Preferably, the inner sides are made profiled. But it is also possible that the clamping closure has on at least one of its inner sides needles, which, as soon as the clamping closure is attached to the elongate part, engage in this.

In a preferred embodiment, the blocking device can be actuated via an actuating means, that is, released and also locked. As an actuating element, for example, a band is suitable, which is connected to the elongate member, with the retractor or with the blocking means, and by which the operation of the blocking device is made possible. In a particularly preferred embodiment, the band is a cord train, as it is known in commercial blinds.

If, in a further embodiment, a pin is used as a blocking means, then this can be held by spring force in engagement, whereby the housing and the shaft are positively connected with each other. Is on the pin a rope or belt arranged as an actuator, the pin can be pulled by pulling on the rope against the spring force disengaged, whereby the shaft is rotatable. When the cable or tape is released, the pin is pushed back into the holes and locks the retractor again.

If, in a further embodiment, the blocking device has means which can be electrically driven, for example gears or shafts, it is possible for the blocking device to be activated by a radio signal, e.g. B. by a remote control to operate.

In an advantageous embodiment, the exercise device on two elongated parts, each having an electrical conductor. The electrical conductors are not isolated at least at one point to the outside. When the electrical conductors are contacted with the non-isolated locations, a circuit is closed and the blocking device releases. The non-isolated sites are preferably arranged so that they do not touch during exercise can and so an unwanted release of the locking device is excluded.

In a particularly advantageous embodiment, it is also conceivable that the elongated part itself represents the actuating means. This means that the blocking device directly over the elongated part, e.g. controlled by special movement patterns. The embodiment has the advantage that the trainee, when he is in the bottom position, can adjust the length without having to get up. If the exercise device has two elongated parts, the release of the blocking device can be achieved, for example, by the user intersecting the elongated parts, for example, and thereby actuating a triggering mechanism.

The unwinding or unwinding of the elongate member can be done by hand. For manual operation is particularly well a crank device, which is preferably arranged on the shaft. By actuating the crank, the user can bring the elongate member in the desired position. However, the unrolling can also take place, for example, by the user pulling on the elongated part. The crank can also be part of the same time

Blocking be, for example, the crank is fixed to the housing, so the shaft can not rotate and a winding or unwinding of the elongated member is not possible.

In another embodiment, the unrolling of the elongate member can be done simply by simply pulling the user on the elongate member.

In a further advantageous embodiment, the elongated part automatically rolls on the shaft after releasing the blocking device. Under automatically in the present invention is understood that the shaft after solving the blocking device on its own, so without further action by the user of the exercise device, rotates in the winding direction. For the automatic rolling of the elongate member, the retractor preferably has a spring connected to the shaft, the use of a helical spring is advantageous. Furthermore, at least one damping element can be provided. This prevents the elongated part from being uncontrolled in the roll-up device rolls up or uncontrollably snaps back and thereby represents a risk of injury to the user.

In a particularly advantageous embodiment, the roll-up device provided according to the invention comprises deflection means. Deflection means according to the invention means means for changing direction preferably reversal of the winding direction when the elongate member is wound on or. Particularly preferably, the deflection means are fixed to each other

spaced winding posts or rollers around which the elongate member is meandered on the shaft prior to winding. Preferably, the elongate member is in each case at least one third of the circumference of the lateral surface of the shell or post in the circumferential direction. The axial direction of the winding posts or rollers runs, for example, parallel to the axial direction of the shaft. But it is also conceivable that the axial direction of the winding posts extend at a different angle to the axial direction of the shaft. In a particularly preferred embodiment, the exercise device has at least two winding posts or rollers. Their axes can lie on a common plane. By using the rollers or winding posts, the elongated part is selectively guided and braked before winding onto the shaft. Thus, a taut and thus clean winding is achieved by the braking effect. Due to the braking effect, the slip, i. an unwanted change in length, minimized at strongly wound and blocked elongated part, as the

Winding is under higher tension and allows less space for movement. Furthermore, due to the braking effect, the deflecting means prevent the elongate part from uncontrollably rebounding after releasing the blocking device with a shaft spring-biased in the take-up direction. Especially when winding the elongate member onto the shaft, friction between the elongated member and the rollers is created. The friction creates a force that opposes the winding of the elongated member and leads to a braking effect. A possible risk of injury to the user by an uncontrolled snap back or the slippage of the elongate member can thus be avoided.

In a further preferred embodiment, the rollers or winding posts cause that when two elongated parts are used, they do not twist. hen or touch and thereby disturb the operation of the device. In particular, with the use of the opening on the housing creates a parallel guide for two elongated parts, which leads to a functional winding and unwinding, regardless of the position of the elongated parts.

In the present invention, in another embodiment, the shaft is driven by a motor. This has the advantage that the elongated part can not only be unrolled but also unrolled by the motor and this does not have to be done manually. Further, it is possible to effect the fixation of the elongate member in various positions by the engine itself. The motor can thus also be used as a blocking device.

In an advantageous embodiment of the exercise device according to the invention, the complete retraction of the elongate member in the retractor or in the housing of the retractor is prevented in that the elongate member has a stopper member in the region of its second end. The stopper element is larger than the opening of the housing through which the elongate member is guided in the retractor. The stopper element may in particular be a hook-shaped or an angular-shaped element which is connected to the end of the exercise device via connecting elements, for example rivets or the like. But it is also possible that the stopper element itself is a rivet or the elongated part is a stopper element by multilayer sewing.

In a preferred embodiment, a connection part is arranged at the second end of the elongated part. Through the use of connecting parts, it is possible to attach various essays quickly and easily to the exercise device. As connections, for example, rings, handles, buckles, loops or other parts that allow a quick attachment or removal of essays are. But it is also conceivable that the second end of the elongated part itself forms the connection part. This is possible, for example, in that the second end of the elongated part itself is formed as a loop. In a preferred embodiment, the attachments may be a loop, a handle, preferably a double handle, or a rod. In an advantageous embodiment, the exercise device on two attached to the shaft elongated parts. Preferably, the winding direction is identical. This has the advantage that the elongated parts always have exactly the same length when using the exercise device. The use can thus be done simultaneously with two body parts, such as right and left arm. As a result, a particularly uniform stress on the muscles of the user is possible. For safety reasons, simultaneous use of two elongated parts is also important because greater balance is achieved and the user is less likely to injure himself. Furthermore, by only one

Blocking device for two elongated parts, the length of the two elongated parts are changed very quickly, which has a positive effect on the smooth training sequence.

Shaft according to the invention also includes two, jointly, preferably synchronously rotating shafts, which are connected for example by a mechanical coupling. In a further embodiment, the two elongated parts are each arranged on a shaft, wherein the shafts are coupled together. The coupling of the waves is preferably carried out by transmission, more preferably by 1: 1 transmission.

Furthermore, an arrangement is conceivable, which is composed of two training devices according to the invention. This arrangement has two spatially separate training devices. The exercise equipment can be next to each other, but also offset from each other, for example, at different heights, arranged. In the arrangement according to the invention, the exercise devices are particularly preferably movable relative to one another. The training devices according to the invention can be independently rotatable and / or pivotable. Such an arrangement causes the user instabilities during training and thus even more uses of the exercise device. Preferably, the exercise devices are arranged on a plate.

In a further embodiment of the present invention, the exercise device has an audio system. Furthermore, it is also possible to integrate a camera, preferably in combination with a monitor, in the exercise device. This gives the user the opportunity to record his training movements. and store them if necessary. This gives the user the opportunity to look at his movements up-to-date or in retrospect and to check, for example, whether the exercises have been carried out correctly.

Further, the exerciser may include means for measuring the length of the elongate member located outside the retractor. This length can then be displayed to the user via an advertisement, for example. This gives the user the opportunity to determine if he has set the correct length for the exercise to be performed. Preference is given to using lasers or rollers with metric measurement. In an advantageous embodiment, the roller, which is used for deflecting and braking the elongate member, perform a measurement of the change in length.

In a further embodiment, the exercise device has a force gauge. By giving the user feedback about the force applied to the individual repetitions, the force meter helps the user to customize his training intensity and to perform exercises as evenly and effectively as possible. If the exercise device has a plurality of elongated parts, then it is also conceivable that a separate force gauge is arranged on each elongated part. This offers the advantage that the user can recognize which force he has applied to the respective elongated part. This can z. B. muscular imbalances of the user can be detected.

By using a counter that counts, for example, load peaks, the user can concentrate fully on his exercises, without having to additionally deal with the counting of repetitions. Preferably, the force gauge and / or the counter is arranged on the shaft or the housing. In a further preferred embodiment, the force gauge and / or the counter at the winding posts or rollers, which cause the deflection of the elongated parts, be mounted. The force gauge and / or the counter itself can also represent the winding post or the roller.

Furthermore, the exercise device may have means for generating vibration, which are preferably arranged on the shaft. This is for the user It is possible to train your deep muscles. In a further preferred embodiment, the vibration on the winding posts or rollers, which cause the deflection of the elongated parts, be appropriate.

Furthermore, in an advantageous embodiment, the exercise device has at least one sensor system which detects the movements of the user. In this case, the body parts and axes of the user are recorded on camera, which are preferably attached to the housing of the retractor, and compared with an ideal motion image. It is also possible to integrate a monitor in the exercise device. The monitor can be used to play entertainment media. On the other hand, he can also play back the movements of the user recorded with the camera. The said additional elements can also be combined with each other as desired.

Furthermore, the exercise device has a sensor system with which the course of movement of the elongate member is detected during an exercise. The system detects the change in position of the second end of the elongate member with respect to the retractor or preferably the change in position of the handle with respect to the retractor. The movement profile of the grip detected by the sensor system can advantageously be compared with a movement pattern previously set by the user. The user thus receives feedback on whether he performs the exercise correctly.

The exercise device according to the invention can be fixed by a variety of fastening means, such as dowels and screws on a ceiling or on a wall. Furthermore, the exercise device may also have attachment hooks or eyelets. But it is also conceivable that the exercise device on doors, preferably between the door frame and the door leaf, can be attached. For this purpose, especially jamming door anchors are suitable. It is also conceivable that the exercise device is clamped by means of fastening means in a doorway or between door frames. As fasteners are particularly suitable for this purpose clamping bars. In an advantageous embodiment, the shaft according to the invention may be part of the rod. Basically, the exercise device can be used not only indoors but also outdoors. For this purpose, the exercise device is attached to trees, branches and / or the like. Preferably, the fastening arranged on the Aufrolleinrichtung tion means. Particularly preferably, the exercise device is fastened so that the retractor is movable relative to the wall and / or ceiling, in particular rotatable and / or pivotable. The invention can be connected directly to the retractor connected to the housing with different mounting options.

However, it is also conceivable that the housing has a quick and easy adapter connection for various fastening means, so that the user can change places quickly without having to forego fastening security.

The invention will be explained in more detail with reference to FIGS. It should be noted that the figures show a particularly preferred embodiment of the invention. However, the invention is not limited to the embodiment shown. In particular, the invention includes, as far as technically feasible, any combinations of the technical features listed in the subclaims or described in the description as being relevant to the invention.

Show it :

1: an embodiment of an exercise device according to the invention FIG. 2: an embodiment of a retractor according to the invention FIG. 3: a further view of the retractor

4 shows a side view of the roll-up device with an embodiment of a blocking device according to the invention

5 shows an embodiment of a blocking wheel

6 shows a further illustration of the blocking device from FIG. 4

Fig. 7: a second embodiment of a blocking device 8 shows a third embodiment of a blocking device

The Fig. 1 shows a schematic representation of an embodiment of an exercise device 1 according to the invention. The exercise device 1 has a roll-up device 2, which can be fastened to a wall or ceiling with fastening means, for example with a screw-plug connection. The retractor 2 comprises a housing 4. The housing 4 is formed as a cuboid. But it is also possible that the housing 4 has the shape of a cylinder. Within the housing 4, a shaft 6 is arranged. The housing 4 further has an opening through which an elongate member 8 extends into the housing 4.

The elongate member 8 has a first end 10 and a second end 12 and may be in the direction of arrow in or out of the retractor 2 from an initial position in which the first elongated member 8 is not or hardly rolled on the shaft 6, to a End position in which the elongated member 8 is completely unrolled, rolled up.

Before the exercise device 1 can be used, the user unrolls the elongate member 8 from the retractor 2 until the elongate member 8 has the length a desired by the user. In this position, the elongate member 8 is then fixed with the aid of at least one blocking device.

As shown in FIG. 1, the exercise device may include a motor 28. The motor 28 is connected to the shaft 6. By the motor 28 drives the shaft 6, the elongated member 8 on the shaft 6 up or from the shaft 6 can be unrolled. Further, the motor 28 may also serve as a blocking device and prevent rotation of the shaft 6.

At the second end 12 of the elongate member 8, a connection part 14 is arranged. The connection between the second end 12 and the connecting part 14 is achieved in that the second end 12 is formed as a loop 13 and the connecting part 14 is held by the loop 13. The connection part 14 is a ring, which is preferably made of metal. It is also conceivable that it is made of plastic. By using the Endpiece 14, it is possible various attachments quickly and easily attached to the exercise device 1 and thereby obtain a wide range of applications of the exercise device 1 according to the invention. In the figure 1, for example, a grip device 16 is arranged. The user of the exercise device 1, depending on the exercise grip the grip device 16 with the legs as well as with the arms.

Fig. 2 shows a plan view of the retractor 2 according to the invention. The retractor 2 has two posts 32, 33 which are arranged between the shaft 6 and the opening 30. The posts 32, 33 are parallel to the longitudinal axis of the shaft 6 and serve to guide the elongate member 8 (not shown here). The elongate member 8 advantageously extends meandering through the posts 32, 33. The elongated member 8 extends, for example, above the first posts 32 before passing between the two posts 32, 33 and then below the second roller 33 and finally the retractor 2 through the Opening 30 leaves. The contact between the posts 32, 33 and the elongated part 8 creates friction. If the user accidentally starts the unblocked elongated part 8, this does not jump back uncontrolled into the retractor 2, but is slowed down by the frictional force that arises. A risk of injury to the user can thus be reduced.

FIG. 3 shows a further view of the reeling device 2 according to the invention. In the housing 4, two arcuate openings 30 are arranged, which run along a circular path. Through the openings 30, the elongated parts 8 leave the retractor 2. By the arcuate openings 30 is achieved that the friction or pinch, which arises between the elongated parts 8 and the housing 4 when performing the exercises is minimized since through the arcuate openings 30, the elongated parts 8 are directed in the direction as they are preferably moved by the user in the exercises.

FIG. 4 shows a side view of the reeling device 2 with a blocking device. On the housing 4, a blocking wheel 38 with external teeth 40 and a cooperating with the blocking wheel 38 brake lever 35 is arranged, wherein the brake lever 35, the blocking wheel 38 releases via an actuating knob 34 and / or blocked. The brake lever 35 is preferably spring-biased and blocks the blocking wheel. The blocking wheel 38 is arranged coaxially with the shaft 6 and relative thereto rotatable between a release position and a locking position. Preferably, the blocking wheel 38 is spring-biased in the direction of the release position. The brake lever 35 engages with its toothing 36 in a portion of the external toothing 40 of the blocking wheel 38, whereby the blocking wheel 38 is fixed and is not rotatable. If the operating button 34 is actuated by the user, the toothed portion 36 is released from the external toothing 40 of the blocking wheel 38 and the blocking wheel 38 can rotate. The blocking wheel 38 has on its side lying to the housing 4 a driver 39 (see Figure 5). The driver 39 engages in an opening 46 of a pawl 44, whereby the pawl 44 is forcibly guided.

Figure 6 shows the blocking device of Figure 4 with the blocking wheel 38 omitted. A toothed element 42 with internal toothing 43 is fastened to the housing 4 from the outside. Furthermore, the blocking device has the pawl 44 with opening 46, which rotates with the shaft 6. The pawl 44 can engage in the internal toothing 43 of the toothed element 42. Preferably, the pawl 44 is biased by a spring.

When the operating lever 34 is actuated by the user, the toothed portion 36 is released from the external toothing 40 of the blocking wheel 38, whereby the blocking wheel 38 is released. By the blocking wheel 38 is spring-biased, the blocking wheel 38 rotates after release relative to the shaft 6 in its release position. By the relative movement of the blocking wheel 38 and the engagement of the driver 39 in the opening 46 of the pawl 44, the pawl 44 is brought out of engagement with the internal teeth 43 of the toothed element 42. The shaft 6 can now rotate about its longitudinal axis, whereby the elongate member 8 can be wound up or unwound. When the user releases the actuating lever 34, the toothed section 36 engages with the external toothing 40 of the blocking wheel 38. The blocking wheel 38 is fixed. If the user now pulls on the elongated part 8, then there is a relative movement of the shaft 6 to the blocking wheel 38, the blocking wheel takes its

Lock position on. By this relative movement and engaging in the opening 46 of the pawl 44 driver 39, the pawl 44 with the Internal toothing 43 of the toothed element 42 is brought into engagement. A rotation of the shaft 6 is no longer possible. The elongated part 8 is fixed.

FIG. 7 shows a second embodiment of a blocking device. The blocking device is arranged on the Ausrolleinrichtung 2 and has a pin 21 as a blocking means. The shaft 6 of the exercise device 1 has a hole 20 which extends parallel to the axis of rotation of the shaft 6. The retractor 2 has a plurality of holes 18, which also extend parallel to the axis of rotation of the shaft 6. Depending on the relative position of the hole 20 to the housing 4, in which the holes 18 are located, the hole 20 with one of the holes 18 form a common hole. That is, the holes are exactly superimposed in this position. Once a hole 20 is just above a hole 18, a pin 21 can be inserted and the shaft 6 is rotatably connected to the retractor 2. A movement of the shaft 6 is no longer possible in this state, the length of the elongate member 8 is thus fixed. The retractor 2 serves as an abutment for the shaft second

FIG. 8 shows a third embodiment of a blocking device. As a blocking agent, a clamping closure 22 is used here. The clamp closure 22 is arranged on the elongate part 8. In order that the length of the elongate member 8 can be fixed by the clamp closure 22, it must be prevented that the clamp closure 22 can move in the rolling or unwinding direction of the elongate member 8. The fixation of the clamp closure 22 can be achieved, for example, in that the clamping closure 22 adjoins delimiting elements or abutments both in the roll-up direction and in the unwinding direction (in the direction of the arrow). As shown in FIG. 3, these limiting elements can be webs 26 and 27. But it is also possible that the webs 27 are omitted and the clamping closure 22 is limited for example only in the rolling direction of the webs 26; in the retraction then serves the retractor 2 and the housing 4 as an abutment and prevents movement of the terminal closure in this direction.

The fixation of the elongate member 8 with a clamp closure 22, as shown in Figure 3, is very easy for the user to handle. After the user of the exercise device 1, the elongated member 8 in the desired by him Length brought, he simply fastens the clamp closure 22 to the elongate member 8, that the clamping closure 22 adjacent in the rolling or in the unwinding direction of the abutment and thus its position is fixed in this direction.

Claims

claims

1. exercise device (1) with at least one length-adjustable, elongated

Part (8),

characterized in that at least

- A retractor (2) is provided which is fixed by means of fastening means to an object and which has a shaft (6) for winding and unwinding of the elongate member (8), wherein the elongate member (8) with a first end (10 ) is attached to the shaft (6) and

- A blocking device for releasably fixing the elongated member (8) is provided in different positions with respect to the retractor (2).

2. exercise device (1) according to claim 1, characterized in that the

Blocking device on the retractor (2) is arranged.

3. exercise device (1) according to claim 1, characterized in that the

Blocking device on the elongate member (8) is arranged.

4. exercise device according to claim 1 or 2, characterized in that the

Blocking device has a pawl (44) and with the pawl (44) cooperating toothing (42).

5. exercise device according to claim 4, characterized in that the pawl (44) with the shaft (6) rotates.

6. exercise device (1) according to any one of claims 2, characterized in that the blocking device as a blocking means comprises a pin (21), wherein the pin (21) the retractor (2) and the shaft (6) positively connected with each other, the retractor (2) acts as a wind bearing, so that the shaft (6) can not rotate.

7. exercise device (1) according to any one of the preceding claims, characterized in that in the winding direction on the shaft (6) acts a spring force, whereby the shaft (6) rotates after loosening the blocking device in the winding direction and thus the elongate member (8) is rolled up.

8. exercise device (1) according to any one of the preceding claims, characterized in that the blocking device actuated by an actuating means, preferably dissolved, is.

9. exercise device (1) according to any one of the preceding claims, characterized in that it is at the elongated part (8) is a webbing.

10. exercise device (1) according to any one of the preceding claims, characterized in that at least one handle (16) is arranged at the second end of the elongate member (8).

11. Exercise device (1) according to any one of the preceding claims, characterized in that at least two elongate parts (8) on a common shaft (6) or preferably on two coupled shafts (6), preferably by a transmission, more preferably by one

1: 1 transmission, connected to each other, are arranged.

12. Exercise device (1) according to one of the preceding claims, characterized in that at least one device from the group:

- audio system,

- camera to check the exercise movement,

- monitor,

- dynamometer,

- counter,

- time measurement,

- means for generating vibrations

is provided.

13. Exercise device (1) according to any one of the preceding claims, characterized in that the exercise device (1) comprises a sensor system which detects the movements of a user of the exercise device (1).

4. Arrangement comprising two exercise devices (1) according to one of the preceding claims, wherein the exercise devices (1) are preferably rotatable relative to each other.