EP2794036B1 - Restraint device, in particular for training purposes - Google Patents

Restraint device, in particular for training purposes Download PDF

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Publication number
EP2794036B1
EP2794036B1 EP12821251.1A EP12821251A EP2794036B1 EP 2794036 B1 EP2794036 B1 EP 2794036B1 EP 12821251 A EP12821251 A EP 12821251A EP 2794036 B1 EP2794036 B1 EP 2794036B1
Authority
EP
European Patent Office
Prior art keywords
supply roll
training apparatus
holder
roll
line
Prior art date
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Active
Application number
EP12821251.1A
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German (de)
French (fr)
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EP2794036A1 (en
Inventor
Harald Scheffer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ergo-Fit & Co KG GmbH
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Ergo-Fit & Co KG GmbH
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Publication of EP2794036A1 publication Critical patent/EP2794036A1/en
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Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
    • A63B21/02—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using resilient force-resisters
    • A63B21/045—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using resilient force-resisters having torsion or bending or flexion element
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B69/00—Training appliances or apparatus for special sports
    • A63B69/0028—Training appliances or apparatus for special sports for running, jogging or speed-walking
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
    • A63B21/012—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using frictional force-resisters
    • A63B21/015—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using frictional force-resisters including rotating or oscillating elements rubbing against fixed elements
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
    • A63B21/15—Arrangements for force transmissions
    • A63B21/151—Using flexible elements for reciprocating movements, e.g. ropes or chains
    • A63B21/153—Using flexible elements for reciprocating movements, e.g. ropes or chains wound-up and unwound during exercise, e.g. from a reel
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
    • A63B21/15—Arrangements for force transmissions
    • A63B21/157—Ratchet-wheel links; Overrunning clutches; One-way clutches
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
    • A63B21/16—Supports for anchoring force-resisters
    • A63B21/1618—Supports for anchoring force-resisters on a door or a door frame
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
    • A63B21/16—Supports for anchoring force-resisters
    • A63B21/169—Supports for anchoring force-resisters for anchoring on or against a wall
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B23/00—Exercising apparatus specially adapted for particular parts of the body
    • A63B23/035—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously
    • A63B23/04—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously for lower limbs
    • A63B23/0405—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously for lower limbs involving a bending of the knee and hip joints simultaneously
    • A63B23/047—Walking and pulling or pushing a load
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B22/00—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
    • A63B22/0076—Rowing machines for conditioning the cardio-vascular system
    • A63B2022/0079—Rowing machines for conditioning the cardio-vascular system with a pulling cable

Definitions

  • the invention relates to a training device for sprinters, comprising a holder which can be anchored in a fixed manner, from which a retaining thread can be pulled by a user over a training course of the user while unwinding the strand from a supply roll, wherein the supply roll moves axially in opposite directions in bearings projecting pivot pins and with a restoring force by sliding friction generating braking device, which inhibits the unwinding of the strand whose settlement of the supply roll.
  • the training of fast starts in sprint runs can be intensified by the fact that the runner not only applies large acceleration forces, but also overcomes a restraining force.
  • a restraining force conventionally elastically stretchable, connected at one end to the rotor and at the other end with a counter-holder bands are used, which then pulls the runner over a short sprint distance in length.
  • a training device of the type mentioned goes out WO 2010/123948 A2 out.
  • This known training device has a supply roll for receiving the strand. From the supply roll are in opposite directions with the roller rigidly connected axle journals, over which the supply roll is rotatably mounted, bearings are mounted on opposite frame rods, between which the supply roll is arranged. Connected to one of the stub axles is a flywheel on which a braking device engages peripherally.
  • the invention provides a new training device of the type mentioned in the introduction, which is characterized in that the bearings for the journal are arranged in mutually opposite side walls of a housing surrounding the supply roll and that the braking device comprises two mutually coaxial brake disks which are axially compressible, wherein the brake disks are arranged coaxially to the supply roll or to one of these under winding through the strand upstream, rotatably mounted about axle journals and wherein one of the two discs rotatably about the respective journal rotatably with the supply roll or the upstream role and the other disc rotatably with is connected to the housing.
  • the extendable preferably designed as a rope strand of the supply roll under rotation of the supply roll against a restoring moment, in particular a torsional moment of a spring, be unwound.
  • the restoring moment which is small against the restraint force generated by the braking device, can be advantageously used to automatically retract the strand into the holder.
  • the supply roll or separate roll is preferably freely rotatable freely against the direction of rotation corresponding to the withdrawal direction by the braking device.
  • the braking device for automatic retraction need not be solved in this case.
  • the rotatably connected to the supply roll or upstream role brake disc can be acted upon with an adjustable braking force.
  • the setting of the braking force is expediently via a brake disc acting, adjustable in its bias compression spring.
  • the holder may have, as a device for selective anchoring to different counter-holders, a bracket connected at its ends to the holder.
  • the bracket is pivotally connected to a connecting the ends of the bracket axis of rotation to the holder.
  • a training or restraint device comprises a holder 1, which has a flat housing 2 with opposite side walls 3 and 3 ', between which a roller 4 is rotatably mounted about an axis perpendicular to the side walls axis. On the roll 4, a band-shaped strand 6 is wound to form a winding 5.
  • the band-shaped strand 6 bears against a roller 7, which deflects it in the direction of a slot-shaped housing opening 8.
  • the strand 6 has a connecting means, in the relevant embodiment, an eyelet.
  • a sleeve 11 serves to guide the friction element 10 and also the inclusion of a coil spring 12 which rests with one end against the other end face of the friction element 10. The other end of the coil spring 12 presses against a screwable into the sleeve 11 screw member 13 with a projecting handle portion 14th
  • a hook-like anchoring element 15 is mounted on the housing 2 of the holder 1, with the aid of which the device can be attached to a wall 16 forming a counter-holder and can be fixed by a screw 17.
  • the anchoring element 15 could be adjustable to adapt to different wall thicknesses not only by the screw 17 but also in the length of the hook legs.
  • the holder 1 could have further, for example, flexible bands comprehensive anchoring elements for attachment of the device to differently shaped counter-holders. Also possible, for example, connecting means for attaching the device to a pile to be driven into the ground as a counter-holder.
  • the retaining device described above can be used for training purposes, as described with reference to Fig. 3 is explained.
  • a special training effect arises as a result of the fact that the sprinter 18, in addition to the forces that accelerate its running motion, must overcome a restraint force generated essentially by the friction element 10.
  • the size of the retaining force can be preselected by means of the screw 13, by which the tension of the coil spring 13 is adjustable.
  • the length of the strand 6 is dimensioned for a Sprintweglois to 25 m, with an additional extendable length section for the deceleration of the running motion is taken into account after exceeding this Sprintwegeria.
  • the device can be protected against overloading so that when the strand 6 is completely unwound from the roller 5, the eyelet 9 automatically releases from the belt holder 19.
  • the roller 5 could be provided at 20 with a spiral return spring (not shown), which ensures an automatic winding of the pulled out of the housing of the holder 1 strand after the pressurization of the strand 6 has been repealed by means of the screw 13. Otherwise, the strand 6 could be wound up by hand from a handle 21 projecting from the housing of the holder 1, possibly folding over.
  • a roller 4a mounted in side walls 2a and 2a 'of a housing 1 has end plates 22 and 22' whose diameter is several times greater than the roller diameter. Through the end plates 22 and 22 ', a wound on the roller 4a, rope-shaped strand 6a is held laterally.
  • a coil spring 23 and 23 ' is arranged on both sides of the roller 6a. The outer end of the springs 23, 23 'is connected via a bolt 24 or 24' with the end plate 22 and 23 '. At the inner end, the coil springs 23, 23 'by a bolt 25 or 25' fixed to the housing 1a.
  • the coil springs not only serve to retract the strand 6a into the housing 1a, but also produce the desired retention force when the strand is pulled out. In contrast to the preceding embodiment, this restraining force is still applied even when the runner pulling out the strand 6a stands still or moves backwards. This can be further training effects.
  • An in 6 and 7 illustrated embodiment of a restraint device comprises in addition to a supply roll 4b for receiving a strand winding 5b another roll 24. A unwound from the roll 4b, cord-shaped strand 6b is once wound around the roller 24 before he a the rollers 4b and 24 receiving housing 2b leaves through an opening 8b to the outside.
  • a bow-shaped anchoring element 15b is articulated with two strap ends and pivotable about an axis of rotation 25 connecting the strap ends.
  • Fig. 7 shows the roller 24 and its storage in detail. From the roller 24 axially projecting axle journals 26 and 27 are rotatable in bearings 28 and 29 which are connected to a holding frame 30. Between the journals 26,27 and the roller 24 is a rotationally fixed connection in one direction. In the opposite direction of rotation between the journals and the roller (not shown) freewheel is formed.
  • the journal 26 is rotationally fixed in conjunction with a to the roller 24 coaxial first brake disc 31, against which a second, coaxial to the roller 24 brake disc 32 can be pressed via a coil spring 33 in the axial direction.
  • the second brake disc 32 is rotatably mounted but slidably mounted on an axle 34 in the axial direction.
  • the coil spring 33 rests with one end against a ring widening 35 of the axle bolt 34 and with the other end against the second brake disk 32.
  • Via screw thread at 36 of the axle 34 is axially adjustable on the support frame 30 by rotation.
  • a rotary lever 37 is used for rotation of the axle 34.
  • the roller 24 When pulling the strand 6b out of the housing 2b of the holder 1b, the roller 24 is rotated as a result of the looping through the strand 6b.
  • the braking device formed by the brake discs 31,32 inhibits this rotation and generates a counter to the extension direction acting restraining force.
  • the size of this restraining force can be adjusted by rotation of the axle bolt 34 by means of the lever 37 by changing the bias of the coil spring 33 resting between the ring widening 35 and the second brake disk 32.
  • a coil spring (not shown) arranged in the supply roll 4b at 20b ensures an automatic withdrawal of the strand 6b while being wound onto the roll 4b.
  • the counterforce generated by the coil spring during extraction is small compared to the restraining force provided by the braking device.
  • An in Fig. 8 Retaining device shown in detail comprises a flat housing 2c with side walls 3c and 3c '. Between the side walls 3c, 3c ', a roller 4c is rotatable about an axis 38 while winding or unwinding a cable strand 6c.
  • the axle journal 42 is non-rotatably connected to a brake disc 31c which is coaxial with the roller 4c.
  • a second, to the brake disc 31c coaxial brake disc 32c can be pressed against the first-mentioned brake disc 31c via a coil spring 33c and is non-rotatably but slidably mounted in the axial direction on a pivot pin 34c.
  • the coil spring 33c bears at one end against a ring widening 35c of the axle pin 34c and at the other end against the brake disk 32c.
  • the axle pin 34c is axially adjustable by rotation, with a rotary lever 37c serving to rotate the axle pin.
  • the braking force between the brake discs can be suitably adjusted by rotation of the rotary lever 37 and thus the force required to unwind the strand 6c from the roller 4c.

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  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biophysics (AREA)
  • Rehabilitation Therapy (AREA)
  • Rehabilitation Tools (AREA)
  • Tension Adjustment In Filamentary Materials (AREA)
  • Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)
  • Emergency Lowering Means (AREA)

Description

Die Erfindung betrifft eine Trainingsvorrichtung für Sprinter, mit einem ortsfest verankerbaren Halter, von dem gegen eine Rückhaltekraft ein mit einem Benutzer verbindbarer Strang über eine Trainingslaufstrecke des Benutzers unter Abwicklung des Strangs von einer Vorratsrolle ausziehbar ist, wobei von der Vorratsrolle axial in entgegengesetzten Richtungen in Lagern drehbare Achszapfen vorstehen und mit einer die Rückstellkraft durch Gleitreibung erzeugenden Bremseinrichtung, die beim Ausziehen des Strangs dessen Abwicklung von der Vorratsrolle hemmt.The invention relates to a training device for sprinters, comprising a holder which can be anchored in a fixed manner, from which a retaining thread can be pulled by a user over a training course of the user while unwinding the strand from a supply roll, wherein the supply roll moves axially in opposite directions in bearings projecting pivot pins and with a restoring force by sliding friction generating braking device, which inhibits the unwinding of the strand whose settlement of the supply roll.

Wie in der DE 10 2011 053 199 A1 beschrieben ist, kann zum Beispiel das Training schneller Starts bei Sprintläufen dadurch intensiviert werden, dass der Läufer nicht nur große Beschleunigungskräfte aufbringt, sondern zusätzlich noch eine Rückhaltekraft überwindet. Zur Erzeugung einer Rückhaltekraft werden herkömmlich elastisch dehnbare, an einem Ende mit dem Läufer und am anderen Ende mit einem Gegenhalter verbundene Bänder eingesetzt, die der Läufer dann über eine kurze Sprintstrecke in die Länge zieht.Like in the DE 10 2011 053 199 A1 For example, the training of fast starts in sprint runs can be intensified by the fact that the runner not only applies large acceleration forces, but also overcomes a restraining force. To generate a restraining force conventionally elastically stretchable, connected at one end to the rotor and at the other end with a counter-holder bands are used, which then pulls the runner over a short sprint distance in length.

Aus der US 4 871 165 , der US 3 861 215 , der US 518 967 sowie der US 4 765 615 gehen jeweils Vorrichtungen zum Körperkrafttraining stationär am Aufstellungsort der Vorrichtung hervor. Ein ausziehbarer Strang ist von einer Rolle unter Drehung der Rolle abwickelbar, wobei deren Drehbewegung durch eine Bremseinrichtung gehemmt wird.
Die US 6 503 850 beschreibt ein Trainingsgerät für Sprinter mit einer Umlenkrolle. Ein um die Umlenkrolle gewundener, durch die Umlenkrolle um 180° umgelenkter Strang lässt sich an einem Ende aus der Vorrichtung ausziehen, wobei jeweils ein der Auszugslänge entsprechender Strangabschnitt in die Vorrichtung hineingezogen wird. Die Vorrichtung weist eine Bremseinrichtung mit einer radial gegen die Umlenkrolle andrückbaren Andruckrolle auf.From the U.S. 4,871,165 , of the US 3,861,215 , of the US 518,967 as well as the US 4,765,615 In each case devices for physical strength training stationary out at the site of the device. An extendable strand is unwound from a roll with rotation of the roller, wherein the rotational movement is inhibited by a braking device.
The US Pat. No. 6,503,850 describes a training device for Sprinter with a pulley. A strand wound around the deflection roller and deflected through the deflection roller by 180 ° can be pulled out of the device at one end, wherein in each case one of the extension lengths corresponding strand section is drawn into the device. The device has a braking device with a pressure roller which can be pressed radially against the deflection roller.

Eine Trainingsvorrichtung der eingangs erwähnten Art geht aus WO 2010/123948 A2 hervor. Diese bekannte Trainingsvorrichtung weist eine Vorratsrolle für die Aufnahme des Strangs auf. Von der Vorratsrolle stehen in entgegengesetzten Richtungen mit der Rolle starr verbundene Achszapfen vor, über welche die Vorratsrolle drehbar gelagert ist, wobei Lager an einander gegenüberliegenden Gestellstangen angebracht sind, zwischen denen die Vorratsrolle angeordnet ist. Mit einem der Achszapfen verbunden ist ein Schwungrad, an dem peripher eine Bremseinrichtung angreift.A training device of the type mentioned goes out WO 2010/123948 A2 out. This known training device has a supply roll for receiving the strand. From the supply roll are in opposite directions with the roller rigidly connected axle journals, over which the supply roll is rotatably mounted, bearings are mounted on opposite frame rods, between which the supply roll is arranged. Connected to one of the stub axles is a flywheel on which a braking device engages peripherally.

Durch die Erfindung wird eine neue Trainingsvorrichtung der eingangs erwähnten Art geschaffen, die dadurch gekennzeichnet ist, dass die Lager für die Achszapfen in einander gegenüberliegenden Seitenwänden eines die Vorratsrolle umgebenden Gehäuses angeordnet sind und dass die Bremseinrichtung zwei zueinander koaxiale Bremsscheiben umfasst, die axial zusammenpressbar sind, wobei die Bremsscheiben koaxial zu der Vorratsrolle oder zu einer dieser unter Umschlingung durch den Strang vorgeordneten, über Achszapfen drehbar gelagerten Rolle angeordnet sind und wobei eine der beiden Bremsscheiben über den betreffenden Achszapfen drehfest mit der Vorratsrolle bzw. der vorgeordneten Rolle und die andere Bremsscheibe drehfest mit dem Gehäuse verbunden ist.The invention provides a new training device of the type mentioned in the introduction, which is characterized in that the bearings for the journal are arranged in mutually opposite side walls of a housing surrounding the supply roll and that the braking device comprises two mutually coaxial brake disks which are axially compressible, wherein the brake disks are arranged coaxially to the supply roll or to one of these under winding through the strand upstream, rotatably mounted about axle journals and wherein one of the two discs rotatably about the respective journal rotatably with the supply roll or the upstream role and the other disc rotatably with is connected to the housing.

In weiterer Ausgestaltung der Erfindung kann der ausziehbare, vorzugsweise als Seil ausgebildete Strang von der Vorratsrolle unter Drehung der Vorratsrolle gegen ein rücktreibendes Moment, insbesondere ein Torsionsmoment einer Feder, abwickelbar sein. Das rücktreibende Moment, das klein gegen die durch die Bremseinrichtung erzeugte Rückhaltekraft ist, kann vorteilhaft zum automatischen Rückzug des Strangs in den Halter genutzt werden.In a further embodiment of the invention, the extendable, preferably designed as a rope strand of the supply roll under rotation of the supply roll against a restoring moment, in particular a torsional moment of a spring, be unwound. The restoring moment, which is small against the restraint force generated by the braking device, can be advantageously used to automatically retract the strand into the holder.

Vorzugsweise ist die Vorratsrolle oder separate Rolle entgegen ihrer der Auszugsrichtung entsprechenden Drehrichtung durch die Bremseinrichtung unbehindert frei drehbar. Vorteilhaft braucht die Bremseinrichtung für den automatischen Rückzug in diesem Fall nicht gelöst zu werden.The supply roll or separate roll is preferably freely rotatable freely against the direction of rotation corresponding to the withdrawal direction by the braking device. Advantageously, the braking device for automatic retraction need not be solved in this case.

In einer Ausführungsform ist die drehfest mit der Vorratsrolle bzw. vorgeordneten Rolle verbundene Bremsscheibe mit einer einstellbaren Bremskraft beaufschlagbar. Die Einstellung der Bremskraft erfolgt zweckmäßig über eine die Bremsscheibe beaufschlagende, in ihrer Vorspannung einstellbare Druckfeder.In one embodiment, the rotatably connected to the supply roll or upstream role brake disc can be acted upon with an adjustable braking force. The setting of the braking force is expediently via a brake disc acting, adjustable in its bias compression spring.

In einer weiteren Ausführungsform der Erfindung kann der Halter als Einrichtung zur wahlweisen Verankerung an unterschiedlichen Gegenhaltern einen an seinen Enden mit dem Halter verbundenen Bügel aufweisen.In a further embodiment of the invention, the holder may have, as a device for selective anchoring to different counter-holders, a bracket connected at its ends to the holder.

Vorzugsweise ist der Bügel um eine die Enden des Bügels verbindende Drehachse drehbar an den Halter angelenkt.Preferably, the bracket is pivotally connected to a connecting the ends of the bracket axis of rotation to the holder.

Die Erfindung wird nachfolgend anhand eines Ausführungsbeispiels und der beiliegenden, sich auf dieses Ausführungsbeispiel beziehenden Zeichnungen weiter erläutert. Es zeigen:

Fig. 1
einen Halter einer in der obengenannten DE 10 2011 053 199 A1 beschriebenen Vorrichtung in einer geschnittenen Seitenansicht,
Fig. 2
den Halter von Fig. 1 in einer Ansicht von unten,
Fig. 3
eine die Funktion der Vorrichtung von Fig. 1 erläuternde Darstellung,
Fig. 4
einen Halter einer weiteren in der obengenannten DE 10 2011 053 199 A1 beschriebenen Vorrichtung,
Fig. 5
den Halter von Fig. 4 gemäß Schnitt I-I,
Fig. 6
einen Halter gemäß einem Ausführungsbeispiel für die Erfindung,
Fig. 7
eine Detaildarstellung einer in dem Halter von Fig. 6 verwendeten Rolle, und
Fig. 8
eine Teildarstellung eines Halters gemäß einem weiteren Ausführungsbeispiel einer Trainingsvorrichtung.
The invention will be explained below with reference to an embodiment and the accompanying, referring to this embodiment drawings. Show it:
Fig. 1
a holder one in the above DE 10 2011 053 199 A1 described device in a sectional side view,
Fig. 2
the holder of Fig. 1 in a view from below,
Fig. 3
one the function of the device of Fig. 1 explanatory illustration,
Fig. 4
a holder of another in the above DE 10 2011 053 199 A1 described device,
Fig. 5
the holder of Fig. 4 according to section II,
Fig. 6
a holder according to an embodiment of the invention,
Fig. 7
a detailed view of a in the holder of Fig. 6 used role, and
Fig. 8
a partial view of a holder according to another embodiment of a training device.

Eine Trainings- bzw. Rückhaltevorrichtung umfasst einen Halter 1, der ein flaches Gehäuse 2 mit einander gegenüberliegenden Seitenwänden 3 und 3' aufweist, zwischen denen eine Rolle 4 um eine zu den Seitenwänden senkrechte Achse drehbar gelagert ist. Auf die Rolle 4 ist unter Bildung einer Wicklung 5 ein bandförmiger Strang 6 aufgewickelt.A training or restraint device comprises a holder 1, which has a flat housing 2 with opposite side walls 3 and 3 ', between which a roller 4 is rotatably mounted about an axis perpendicular to the side walls axis. On the roll 4, a band-shaped strand 6 is wound to form a winding 5.

Der bandförmige Strang 6 liegt gegen eine Rolle 7 an, die ihn in Richtung einer schlitzförmigen Gehäuseöffnung 8 umlenkt. Am freien Ende außerhalb des Gehäuses weist der Strang 6 ein Verbindungsmittel auf, in dem betreffenden Ausführungsbeispiel eine Öse 9.The band-shaped strand 6 bears against a roller 7, which deflects it in the direction of a slot-shaped housing opening 8. At the free end outside the housing, the strand 6 has a connecting means, in the relevant embodiment, an eyelet. 9

Gegen den Strang 6 liegt mit einer Stirnfläche ein Reibelement 10 an, das den Strang 6 gegen die Rolle 7 presst. Eine Hülse 11 dient der Führung des Reibelements 10 und ferner der Aufnahme einer Schraubenfeder 12, die mit einem Ende gegen die andere Stirnfläche des Reibelements 10 anliegt. Das andere Ende der Schraubenfeder 12 drückt gegen ein in die Hülse 11 eindrehbares Schraubenelement 13 mit einem vorspringenden Griffteil 14.Against the strand 6 is located with an end face on a friction element 10, which presses the strand 6 against the roller 7. A sleeve 11 serves to guide the friction element 10 and also the inclusion of a coil spring 12 which rests with one end against the other end face of the friction element 10. The other end of the coil spring 12 presses against a screwable into the sleeve 11 screw member 13 with a projecting handle portion 14th

An dem Gehäuse 2 des Halters 1 ist in dem gezeigten Ausführungsbeispiel ein hakenartiges Verankerungselement 15 angebracht, mit dessen Hilfe die Vorrichtung an einer einen Gegenhalter bildenden Mauer 16 anbringbar und durch eine Schraube 17 fixierbar ist. Das Verankerungselement 15 könnte zur Anpassung an unterschiedliche Wandstärken nicht nur durch die Schraube 17 sondern auch in der Länge der Hakenschenkel verstellbar sein. Der Halter 1 könnte weitere, z.B. flexible Bänder umfassende Verankerungselemente zur Befestigung der Vorrichtung an unterschiedlich gestalteten Gegenhaltern aufweisen. Möglich wären z.B. auch Verbindungsmittel zur Anbringung der Vorrichtung an einem in den Boden als Gegenhalter zu treibenden Pfahl.On the housing 2 of the holder 1, a hook-like anchoring element 15 is mounted in the embodiment shown, with the aid of which the device can be attached to a wall 16 forming a counter-holder and can be fixed by a screw 17. The anchoring element 15 could be adjustable to adapt to different wall thicknesses not only by the screw 17 but also in the length of the hook legs. The holder 1 could have further, for example, flexible bands comprehensive anchoring elements for attachment of the device to differently shaped counter-holders. Also possible, for example, connecting means for attaching the device to a pile to be driven into the ground as a counter-holder.

Die vorangehend beschriebene Rückhaltevorrichtung lässt sich zu Trainingszwecken verwenden, wie dies anhand von Fig. 3 erläutert ist. Ein Sprinter 18 trainiert Startbewegungen, wobei die Öse 9 am freien Ende des Stranges 6 in eine Gurthalterung 19 eingehängt ist.The retaining device described above can be used for training purposes, as described with reference to Fig. 3 is explained. A sprinter 18 trained starting movements, wherein the eyelet 9 is mounted at the free end of the strand 6 in a belt holder 19.

Ein besonderer Trainingseffekt stellt sich dadurch ein, dass der Sprinter 18 zusätzlich zu den seine Laufbewegung beschleunigenden Kräften eine im Wesentlichen durch das Reibelement 10 erzeugte Rückhaltekraft überwinden muss. Die Größe der Rückhaltekraft lässt sich mit Hilfe des Schraubelements 13 vorwählen, durch das die Spannung der Schraubenfeder 13 einstellbar ist.A special training effect arises as a result of the fact that the sprinter 18, in addition to the forces that accelerate its running motion, must overcome a restraint force generated essentially by the friction element 10. The size of the retaining force can be preselected by means of the screw 13, by which the tension of the coil spring 13 is adjustable.

In dem gezeigten Ausführungsbeispiel ist die Länge des Strangs 6 für eine Sprintweglänge bis 25 m bemessen, wobei ein zusätzlich ausziehbarer Längenabschnitt für die Abbremsung der Laufbewegung nach Überschreitung dieser Sprintweglänge berücksichtigt ist. Die Vorrichtung kann gegen Überlastung derart geschützt sein, dass sich bei vollständiger Abwicklung des Strangs 6 von der Rolle 5 die Öse 9 automatisch von der Gurthalterung 19 löst.In the embodiment shown, the length of the strand 6 is dimensioned for a Sprintweglänge to 25 m, with an additional extendable length section for the deceleration of the running motion is taken into account after exceeding this Sprintweglänge. The device can be protected against overloading so that when the strand 6 is completely unwound from the roller 5, the eyelet 9 automatically releases from the belt holder 19.

Die Rolle 5 könnte bei 20 mit einer spiralförmigen Rückzugsfeder (nicht gezeigt) versehen sein, welche für eine automatische Aufwicklung des aus dem Gehäuse des Halters 1 herausgezogenen Stranges sorgt, nachdem mit Hilfe des Schraubelements 13 die Druckbeaufschlagung des Stranges 6 aufgehoben worden ist. Der Strang 6 ließe sich andernfalls von einem vom Gehäuse des Halters 1 vorstehenden, ggf. umklappbaren Griffstück 21 von Hand aufwickeln.The roller 5 could be provided at 20 with a spiral return spring (not shown), which ensures an automatic winding of the pulled out of the housing of the holder 1 strand after the pressurization of the strand 6 has been repealed by means of the screw 13. Otherwise, the strand 6 could be wound up by hand from a handle 21 projecting from the housing of the holder 1, possibly folding over.

Im Folgenden sind gleiche oder gleichwirkende Teile mit derselben Bezugszahl wie bei dem vorangehenden Ausführungsbeispiel bezeichnet, wobei der betreffenden Bezugszahl der Buchstabe a bzw. b beigefügt ist.Hereinafter, the same or equivalent parts are denoted by the same reference numerals as in the preceding embodiment, wherein the relevant reference number is accompanied by the letter a or b.

Bei einem in Fig. 4 und 5 gezeigten Ausführungsbeispiel sind gleiche oder gleichwirkende Teile mit derselben Bezugszahl wie bei dem vorangehenden Ausführungsbeispiel bezeichnet, wobei der betreffenden Bezugszahl der Buchstabe a beigefügt ist.At an in 4 and 5 embodiment shown are the same or equivalent parts with the same reference number as in the preceding embodiment, with the relevant reference number, the letter a is attached.

Ein in Seitenwänden 2a und 2a' eines Gehäuses 1 gelagerte Rolle 4a weist Stirnplatten 22 und 22' auf, deren Durchmesser um ein Mehrfaches größer als der Rollendurchmesser ist. Durch die Stirnplatten 22 und 22' wird ein auf die Rolle 4a aufgewickelter, seilförmiger Strang 6a seitlich gehalten. Auf beiden Seiten der Rolle 6a ist eine Spiralfeder 23 bzw. 23' angeordnet. Das äußere Ende der Federn 23, 23' ist über einen Bolzen 24 bzw. 24' mit der Stirnplatte 22 bzw. 23' verbunden. Am inneren Ende sind die Spiralfedern 23, 23' durch einen Bolzen 25 bzw. 25' am Gehäuse 1a festgelegt.A roller 4a mounted in side walls 2a and 2a 'of a housing 1 has end plates 22 and 22' whose diameter is several times greater than the roller diameter. Through the end plates 22 and 22 ', a wound on the roller 4a, rope-shaped strand 6a is held laterally. On both sides of the roller 6a, a coil spring 23 and 23 'is arranged. The outer end of the springs 23, 23 'is connected via a bolt 24 or 24' with the end plate 22 and 23 '. At the inner end, the coil springs 23, 23 'by a bolt 25 or 25' fixed to the housing 1a.

Bei dem in Fig. 4 und 5 gezeigten Ausführungsbeispiel dienen die Spiralfedern nicht nur zum Zurückziehen des Strangs 6a in das Gehäuse 1a, sondern erzeugen die gewünschte Rückhaltekraft beim Ausziehen des Strangs. Im Unterschied zu dem vorangehenden Ausführungsbeispiel liegt diese Rückhaltekraft auch dann noch an, wenn der den Strang 6a ausziehende Läufer still steht oder sich rückwärts bewegt. Hierdurch lassen sich weitere Trainingseffekte erzielen.At the in 4 and 5 In the embodiment shown, the coil springs not only serve to retract the strand 6a into the housing 1a, but also produce the desired retention force when the strand is pulled out. In contrast to the preceding embodiment, this restraining force is still applied even when the runner pulling out the strand 6a stands still or moves backwards. This can be further training effects.

Ein in Fig. 6 und 7 dargestelltes Ausführungsbeispiel für eine Rückhaltvorrichtung umfasst neben einer Vorratsrolle 4b für die Aufnahme einer Strangwicklung 5b eine weitere Rolle 24. Ein von der Rolle 4b abgewickelter, schnurförmiger Strang 6b ist einmal um die Rolle 24 herumgewunden, bevor er ein die Rollen 4b und 24 aufnehmendes Gehäuse 2b durch eine Öffnung 8b hindurch nach außen verlässt.An in 6 and 7 illustrated embodiment of a restraint device comprises in addition to a supply roll 4b for receiving a strand winding 5b another roll 24. A unwound from the roll 4b, cord-shaped strand 6b is once wound around the roller 24 before he a the rollers 4b and 24 receiving housing 2b leaves through an opening 8b to the outside.

An das Gehäuse 2b ist ein bügelförmiges Verankerungselement 15b mit beiden Bügelenden angelenkt und um eine die Bügelenden verbindende Drehachse 25 verschwenkbar.To the housing 2b, a bow-shaped anchoring element 15b is articulated with two strap ends and pivotable about an axis of rotation 25 connecting the strap ends.

Fig. 7 zeigt die Rolle 24 und ihre Lagerung im Detail.
Von der Rolle 24 axial vorstehende Achszapfen 26 und 27 sind in Lagern 28 und 29 drehbar, die mit einem Halterahmen 30 verbunden sind. Zwischen den Achszapfen 26,27 und der Rolle 24 besteht in einer Drehrichtung eine drehfeste Verbindung. In der entgegengesetzten Drehrichtung ist zwischen den Achszapfen und der Rolle ein (nicht gezeigter) Freilauf gebildet. Fig. 7 shows the roller 24 and its storage in detail.
From the roller 24 axially projecting axle journals 26 and 27 are rotatable in bearings 28 and 29 which are connected to a holding frame 30. Between the journals 26,27 and the roller 24 is a rotationally fixed connection in one direction. In the opposite direction of rotation between the journals and the roller (not shown) freewheel is formed.

Der Achszapfen 26 steht drehfest in Verbindung mit einer zu der Rolle 24 koaxialen ersten Bremsscheibe 31, gegen die sich eine zweite, zu der Rolle 24 koaxiale Bremsscheibe 32 über eine Schraubenfeder 33 in axialer Richtung anpressen lässt. Die zweite Bremsscheibe 32 ist drehfest aber in axialer Richtung verschiebbar auf einem Achsbolzen 34 gelagert. Die Schraubenfeder 33 liegt mit einem Ende gegen eine Ringaufweitung 35 des Achsbolzens 34 und mit dem anderen Ende gegen die zweite Bremsscheibe 32 an. Über Schraubengewinde bei 36 ist der Achsbolzen 34 an dem Halterahmen 30 durch Drehung axial verstellbar. Zur Drehung des Achsbolzens 34 dient ein Drehhebel 37.The journal 26 is rotationally fixed in conjunction with a to the roller 24 coaxial first brake disc 31, against which a second, coaxial to the roller 24 brake disc 32 can be pressed via a coil spring 33 in the axial direction. The second brake disc 32 is rotatably mounted but slidably mounted on an axle 34 in the axial direction. The coil spring 33 rests with one end against a ring widening 35 of the axle bolt 34 and with the other end against the second brake disk 32. Via screw thread at 36 of the axle 34 is axially adjustable on the support frame 30 by rotation. For rotation of the axle 34, a rotary lever 37 is used.

Beim Herausziehen des Strangs 6b aus dem Gehäuse 2b des Halters 1b wird die Rolle 24 infolge der Umschlingung durch den Strang 6b gedreht. Die durch die Bremsscheiben 31,32 gebildete Bremseinrichtung hemmt diese Drehung und erzeugt eine entgegen der Auszugsrichtung wirkende Rückhaltekraft. Die Größe dieser Rückhaltekraft lässt sich durch Drehung des Achsbolzens 34 mit Hilfe des Hebels 37 einstellen, indem die Vorspannung der zwischen der Ringaufweitung 35 und der zweiten Bremsscheibe 32 anliegenden Schraubenfeder 33 geändert wird.When pulling the strand 6b out of the housing 2b of the holder 1b, the roller 24 is rotated as a result of the looping through the strand 6b. The braking device formed by the brake discs 31,32 inhibits this rotation and generates a counter to the extension direction acting restraining force. The size of this restraining force can be adjusted by rotation of the axle bolt 34 by means of the lever 37 by changing the bias of the coil spring 33 resting between the ring widening 35 and the second brake disk 32.

Wird keine Auszugskraft mehr auf den Strang 6b ausgeübt, so sorgt eine in der Vorratsrolle 4b bei 20b angeordnete Spiralfeder (nicht gezeigt) für einen automatischen Rückzug des Strangs 6b unter Aufwicklung auf die Rolle 4b. Die während des Ausziehens durch die Spiralfeder erzeugte Gegenkraft ist klein im Vergleich zu der durch die Bremseinrichtung bewirkten Rückhaltekraft.If a pull-out force is no longer exerted on the strand 6b, then a coil spring (not shown) arranged in the supply roll 4b at 20b ensures an automatic withdrawal of the strand 6b while being wound onto the roll 4b. The counterforce generated by the coil spring during extraction is small compared to the restraining force provided by the braking device.

Eine in Fig. 8 ausschnittsweise dargestellte Rückhaltevorrichtung umfasst ein flaches Gehäuse 2c mit Seitenwänden 3c und 3c'. Zwischen den Seitenwänden 3c,3c' ist eine Rolle 4c unter Ab- oder Aufwicklung eines Seilstrangs 6c um eine Achse 38 drehbar.An in Fig. 8 Retaining device shown in detail comprises a flat housing 2c with side walls 3c and 3c '. Between the side walls 3c, 3c ', a roller 4c is rotatable about an axis 38 while winding or unwinding a cable strand 6c.

Von der Rolle 4c vorstehende Achszapfen 39,40 greifen in Lagerungen 41 und 42 in den Seitenwänden 3c,3c' ein. Der Achszapfen 42 steht drehfest in Verbindung mit einer zu der Rolle 4c koaxialen Bremsscheibe 31c. Eine zweite, zu der Bremsscheibe 31c koaxiale Bremsscheibe 32c lässt sich über eine Schraubenfeder 33c gegen die erstgenannte Bremsscheibe 31c anpressen und ist drehfest aber in axialer Richtung verschiebbar auf einem Achsbolzen 34c gelagert. Die Schraubenfeder 33c liegt mit einem Ende gegen eine Ringaufweitung 35c des Achsbolzens 34c und mit anderen Ende gegen die Bremsscheibe 32c an.Axle pins 39, 40 projecting from the roller 4c engage in bearings 41 and 42 in the side walls 3c, 3c '. The axle journal 42 is non-rotatably connected to a brake disc 31c which is coaxial with the roller 4c. A second, to the brake disc 31c coaxial brake disc 32c can be pressed against the first-mentioned brake disc 31c via a coil spring 33c and is non-rotatably but slidably mounted in the axial direction on a pivot pin 34c. The coil spring 33c bears at one end against a ring widening 35c of the axle pin 34c and at the other end against the brake disk 32c.

Über ein Schraubengewinde 36c in einem Halterahmen 30c ist der Achsbolzen 34c durch Drehung axial verstellbar, wobei zur Drehung des Achsbolzen ein Drehhebel 37c dient.Via a screw thread 36c in a holding frame 30c, the axle pin 34c is axially adjustable by rotation, with a rotary lever 37c serving to rotate the axle pin.

Die Bremskraft zwischen den Bremsscheiben lässt sich durch Drehung des Drehhebels 37 geeignet verstellen und damit die Kraft, die benötigt wird, um den Strang 6c von der Rolle 4c abzuwickeln.The braking force between the brake discs can be suitably adjusted by rotation of the rotary lever 37 and thus the force required to unwind the strand 6c from the roller 4c.

Claims (9)

  1. Training apparatus for sprinters, having a holder (1b), which can be anchored in a fixed position and from which a line (6b, 6c), which can be connected to a user (18), can be pulled out, counter to a restoring force, over a training distance covered by the user (18), the line (6b, 6c) being unwound from a supply roll (4b, 4c) in the process, wherein journals (39, 40), which can be rotated in bearings (41, 42), project axially in opposite directions from the supply roll (4b, 4c), and having a braking device, which generates the restoring force by sliding friction and, when the line (6b, 6c) is pulled out, inhibits the action of the latter being unwound from the supply roll (4b, 4c),
    characterized
    in that the bearings (41, 42) for the journals (39, 40) are arranged in mutually opposite side walls (3c, 3c') of a housing (2b, 2c), which encloses the supply roll (4b, 4c), and
    in that the braking device comprises two brake discs (31, 32; 31c, 32c), which are coaxial in relation to one another and can be pressed axially together,
    wherein the brake discs (31, 32; 31c, 32c) are arranged coaxially in relation to the supply roll (4b, 4c) or in relation to a roll (24) which is arranged in front of the supply roll, having the line (6b, 6c) wrapping around it, and is mounted in a rotatable manner via journals (26, 27), and wherein one of the two brake discs (31, 31c) is connected in a rotationally fixed manner, via the relevant journals (31, 40), to the supply roll (6c) or the roll (24) arranged in front of it and the other brake disc (32, 32c) is connected in a rotationally fixed manner to the housing (2b, 2c).
  2. Training apparatus according to Claim 1,
    characterized
    in that the pull-out line (6b; 6c) can be unwound from the supply roll (4b; 4c) with the supply roll (4b; 4c) being rotated counter to a restoring torque, in particular a torsional moment of a spring (20b).
  3. Training apparatus according to Claim 1 or 2,
    characterized
    in that the supply roll (4c) or the roll (24) arranged in front of it can be rotated freely in an uninhibited manner counter to its direction of rotation, which corresponds to the pulling-out direction, by the braking device (31, 32; 31c, 32c) .
  4. Training apparatus according to one of Claims 1 to 3,
    characterized
    in that the brake disc (32; 32c), which is connected in a rotationally fixed manner to the supply roll (4c) or the roll (24) arranged in front of it, can be subjected axially to an adjustable braking force.
  5. Training apparatus according to Claim 4,
    characterized
    in that the brake disc (32; 32c) can be subjected to the braking force by a spring (33; 33c), which can have its level of prestressing adjusted.
  6. Training apparatus according to one of Claims 1 to 5,
    characterized
    in that the holder (1) is transportable and has devices (15) for anchoring it optionally on different supports (16).
  7. Training apparatus according to one of Claims 1 to 8,
    characterized
    in that the holder (1b) has, as a device for anchoring it optionally on different supports, a bracket-like anchoring element (15b), which has its ends connected to the holder.
  8. Training apparatus according to Claim 7,
    characterized
    in that the bracket-like anchoring element (15b) is articulated on the holder (1b) such that it can be rotated about an axis of rotation (25) which connects the ends of the bracket.
  9. Training apparatus according to one of Claims 1 to 8,
    characterized
    in that the line (6b; 6c) is designed in the form of a rope.
EP12821251.1A 2011-12-22 2012-12-20 Restraint device, in particular for training purposes Active EP2794036B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102011122104 2011-12-22
DE102012110051A DE102012110051A1 (en) 2011-12-22 2012-10-22 Restraint device, in particular for training purposes
PCT/DE2012/100392 WO2013091625A1 (en) 2011-12-22 2012-12-20 Restraint device, in particular for training purposes

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EP2794036A1 EP2794036A1 (en) 2014-10-29
EP2794036B1 true EP2794036B1 (en) 2018-08-08

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US (1) US10046195B2 (en)
EP (1) EP2794036B1 (en)
KR (1) KR20140107570A (en)
CN (1) CN104245059B (en)
AU (1) AU2012357215A1 (en)
CA (1) CA2859845A1 (en)
DE (1) DE102012110051A1 (en)
EA (1) EA029600B1 (en)
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WO2013091625A1 (en) 2013-06-27
ES2689793T3 (en) 2018-11-15
AU2012357215A1 (en) 2014-07-10
CN104245059A (en) 2014-12-24
US20150051056A1 (en) 2015-02-19
CA2859845A1 (en) 2013-06-27
CN104245059B (en) 2018-06-19
EP2794036A1 (en) 2014-10-29
EA029600B1 (en) 2018-04-30
KR20140107570A (en) 2014-09-04
US10046195B2 (en) 2018-08-14
EA201400747A1 (en) 2014-09-30
DE102012110051A1 (en) 2013-06-27

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