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United States Patent Application 20180140891
Kind Code A1
SCHEFFER; Harald May 24, 2018

DEVICE FOR TRANSMITTING A RESTRAINING FORCE DURING RUNNING TRAINING

Abstract

A device for transmitting a restraining force to the body of a runner during running training, including a strap to be wound around the body, and an element for connecting the strap to a tension cord transmitting the restraining force. The connection element engages behind the strap, and upon a body rotation of the runner, rolls and/or glides in the circumferential direction of the strap on the inner side of the strap facing the body.


Inventors: SCHEFFER; Harald; (Merzig, DE)
Applicant:
Name City State Country Type

ERGO-FIT GMBH & CO. KG

Pirmasens

DE
Family ID: 1000003161990
Appl. No.: 15/571536
Filed: May 3, 2016
PCT Filed: May 3, 2016
PCT NO: PCT/DE2016/100200
371 Date: November 3, 2017


Current U.S. Class: 1/1
Current CPC Class: A63B 21/4009 20151001; A63B 21/153 20130101; A63B 23/047 20130101; A63B 69/0028 20130101; A63B 21/012 20130101
International Class: A63B 21/00 20060101 A63B021/00; A63B 23/04 20060101 A63B023/04; A63B 69/00 20060101 A63B069/00

Foreign Application Data

DateCodeApplication Number
May 5, 2015DE10 2015 106 971.7

Claims



1-11. (canceled)

12. A device for transmitting a restraining force to a body of a runner during running training, comprising: a strap to be wrapped around the body; and an element for connecting the strap to a tension cord that transmits the restraining force, wherein the connecting element engages behind the strap and, upon rotation of the body of the runner, rolls and/or slides in a circumferential direction of the strap over an inner side of the strap facing the body.

13. The device according to claim 12, wherein the strap is configured as a nondetachably closed ring.

14. The device according to claim 13, wherein the ring has ends that are not connected together.

15. The device according to claim 12, wherein the strap has, on its inner side of the strap facing the body of the runner has a surface that promotes gripping of the strap on the body.

16. The device according to claim 12, wherein the strap has a circumference greater than a circumference of the body of the runner.

17. The device according to claim 12, wherein the connecting element engages around the strap as an eye.

18. The device according to claim 12, wherein the connecting element is connected to the strap nondetachably in a form-fitting manner.

19. The device according to claim 12, wherein the connecting element has a roller that extends over substantially an entire width of the strap.

20. The device according to claim 19, wherein the roller extends of the entire width of the strap.

21. The device according to claim 19, wherein the connecting element has a metal core encapsulated with plastic material.

22. The device according to claim 19, wherein the connecting element is configured a plate with a cutout for the strap to pass through.

23. The device according to claim 22, wherein the roller is arranged within the cutout.

24. The device according to claim 22, wherein the cutout is closed all around.

25. The device according to claim 21, wherein the roller is rotatable about an axle pin welded to the metal core.
Description



[0001] The invention relates to a device for transmitting a restraining force to the body of a runner during running training, having a strap to be wrapped around the body and an element for connecting the strap to a tension cord that transmits the restraining force.

[0002] Such a device that transmits the force of a restraining device to the body of a runner and comprises a strap and a connecting element is disclosed in DE 10 2011 053 199 A1. The restraining force transmissible by the device always acts in the same direction on the runner.

[0003] The invention is based on the object of creating a novel device of the type mentioned at the beginning, which allows running training with more variants than conventional devices of this type.

[0004] The device according to the invention that achieves this object is characterized in that the connecting element engages behind the strap and, upon a body rotation of the runner, rolls and/or slides in the strap circumferential direction over the strap inner side facing the body.

[0005] Advantageously, the device according to the invention allows any desired body rotations during running with a constantly applied restraining load, such that the runner can change for example from running forward to running backward, optionally via running sideways.

[0006] The strap may be configured as a nondetachably closed strap, optionally endless, i.e. without connected ends.

[0007] In one embodiment, the strap has, on its inner side facing the body of the runner, a surface that promotes the gripping of the strap on the body.

[0008] Advantageously, the strap does not slide downward off the body even when, according to a further preferred embodiment of the invention, it has a greater circumference than the body of the runner. Such a wide strap ensures that there is enough room for the connecting element to perform a rolling and/or sliding movement.

[0009] While the connecting piece could be connected for example captively to the restraining cord, it is preferably connected nondetachably and thus captively to the strap, wherein it engages around the strap for example in the manner of an eye.

[0010] The connecting piece expediently has a roller which extends over the entire width or virtually the entire width of the strap.

[0011] In a particularly preferred embodiment, the connecting piece comprises a metal core encapsulated with plastics material, which gives the connecting piece high stability, while the outer side is advantageously formed by a softer material.

[0012] In particular, the connecting piece is configured in a plate-like manner with a cutout for the strap to pass through, wherein the roller is preferably arranged within the cutout.

[0013] Expediently, the cutout is closed all around, thereby giving the connecting piece stability in addition.

[0014] Expediently, the roller is rotatable about an axle pin which is welded to the metal core and is partially co-encapsulated with the plastics material.

[0015] The invention is explained further in the following text on the basis of an exemplary embodiment and the accompanying drawings which relate to this exemplary embodiment and in which:

[0016] FIG. 1 shows a device according to the invention in different working positions,

[0017] FIG. 2 shows a side view of a connecting piece used in the device in FIG. 1, and

[0018] FIG. 3 shows a plan view of the connecting piece in FIG. 2.

[0019] A device for transmitting a restraining force comprises a strap 1 and an element 2 via which the strap 1 is connectable to a tension cord 4 that exerts the restraining force along arrow 3. The tension cord 4 can be a constituent part of a restraining device (not shown), as is disclosed for example in the abovementioned application.

[0020] In the example shown, the strap 1 consists of a firm fabric made of plastics threads and has a width of 5 cm. As a result of overlapping ends being sewn together, the strap 1 is closed nondetachably to form a ring.

[0021] As can be seen in FIGS. 2 and 3, the connecting element 2 is configured substantially in a plate-like manner with a cutout 5 in the form of a rectangular eye opening for the strap 1 to pass through and a circular eye opening 6 for coupling the tension cord 4. A roller 7 mounted on an axle pin 8 so as to be able to rotate projects into the rectangular eye opening 5, the length of said roller 7 corresponding approximately to the width of the strap 1 in the example shown.

[0022] In the example shown, the connecting element 2 has a sheet steel core 9, illustrated by dashed lines, onto which a plastics coating is injection-molded. While the sheet steel core 9 is set back with respect to the outer plate rim and the edge of the rectangular eye opening, it projects right up to the circular eye opening 6.

[0023] The axle pin 8 is welded at its ends to the sheet steel core 9. As can be seen in FIG. 3, the plastics coating has a thickened portion 10 in these connecting regions.

[0024] In order to use the device, a training runner, for example, puts the strap 1 around their body 11 and couples the connecting piece 2, which is connected to the strap captively in a form-fitting manner in the example shown, for example with the aid of a snap hook 12 to the cord 4 of the restraining device. As a result of a tensile force exerted constantly along arrow 3 by the restraining device, the strap 1 rests frictionally against the body 11 without sliding down and the connecting element 2 is kept at a distance from the body 11.

[0025] During their running movement, the runner has to constantly overcome a restraining force, with the result that the achievable training effect can be enhanced. As FIG. 1b shows, the device allows a rotation of the body 11 along arrow 13 with a restraining load applied, wherein the roller 7 of the connecting piece 2 rolls in the strap circumferential direction along arrow 14 over the strap inner side.

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