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a technology of exercise system and trampoline, which is applied in trampolines, gymnastic exercise, sport apparatus, etc., can solve the problems of reducing the use range of the user, so as to achieve fewer and less frequent impacts.
Inactive Publication Date: 2011-06-30
PUBLICOVER MARK W
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[0004]Like larger trampolines, such devices have a bed that is made of flexible fabric attached to an encompassing frame by springs. Although the bed of such a rebounder is quite resilient, it subjects the jumper's feet to severe pronation because the bed does not descend uniformly upon impact. Instead, the periphery of the bed remains near its original elevation upon impact from a jumper's foot while the center region of the bed descends a relatively much greater distance. The effect is similar to running on a severely banked roadway where a runner's foot is subject to unnatural stresses because it never lands on flat ground.
[0005]Jumping on full-sized trampolines is far less stressful because, due to its larger diameter, the bed of a full-sized trampoline typically is never at as steep an angle and because full-sized trampolines are used differently. With rebounders, the user is typically exercising in a way that produces numerous rapid footfalls, whereas use of a full-sized trampoline typically involves fewer and less frequent impacts.
Problems solved by technology
Although the bed of such a rebounder is quite resilient, it subjects the jumper's feet to severe pronation because the bed does not descend uniformly upon impact.
Currently available rebounder-type devices do not fully allow the user to develop their spatial awareness, balance and coordination because of their restrictiveness.
Rebounders with fixed handholds attached to the rebounder frame are known, but do not allow the user freedom of rotation while performing rebounding exercise.
Method used
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[0013]FIGS. 1-3 show a rebounder having an encompassing frame 10 supported by plural legs 12. The rebounder has a jumping bed which is a platform suspended on the frame. The platform may be suspended by connection to the frame by elastic members such as spring elements 22. Springs may be attached in any conventional manner. Most conveniently, multiple attachment points, such holes defined by walls of the frame and platform are provided. The ends of the springs may be hooked into such holes. Unlike the fabric of a conventional trampoline bed, which is quite flexible and must be stretched to hold its shape, the platform is sufficiently rigid to support its own weight even when not attached to a frame. For example, if such a self-supporting bed were lifted from a single point at its center, it could flex downward significantly at its perimeter but it would not collapse like a piece of fabric. It also could be made from a material that would not deflect when lifted from a point at its c...
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Abstract
A rebounder comprising an encompassing frame has a platform suspended on the frame. The platform has a substantially rigid base and a pad of resilient material is secured on the base. A vertical handhold frame may have a directly attached handhold or a rotating handhold, which may be attached by elastic connections.
Description
CROSS REFERENCE TO RELATED APPLICATIONS[0001]This is a continuation of application Ser. No. 12 / 028,760, filed Feb. 8, 2008, which is a continuation-in-part of application Ser. No. 11 / 412,309, filed Apr. 26, 2006, which is continuation of application Ser. No. 10 / 946,927, filed Sep. 21, 2004, now U.S. Pat. No. 7,060,001, which is a continuation of application Ser. No. 10 / 240,387, filed Sep. 27, 2002, now U.S. Pat. No. 6,846,271, which is the National Stage of International Application No. PCT / US01 / 41736, filed Aug. 14, 2001, which claims the benefit of Provisional Application No. 60 / 225,326, filed Aug. 14, 2000, all of which prior applications are incorporated herein by reference.[0002]This also is continuation of application Ser. No. 11 / 860,447, filed Sep. 24, 2007, which claims the benefit of U.S. Provisional Application No. 60 / 846,526, filed Sep. 22, 2006, both of which prior applications are incorporated herein by reference.BACKGROUND AND SUMMARY[0003]This invention relates trampo...
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Patent Type & Authority Applications(United States)
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