| Training apparatus, in particular an elliptical trainer or cross trainer -> Monitor Keywords |
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Training apparatus, in particular an elliptical trainer or cross trainerRelated Patent Categories: Exercise Devices, Involving User Translation Or Physical Simulation Thereof, Stair ClimbingTraining apparatus, in particular an elliptical trainer or cross trainer description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20060142123, Training apparatus, in particular an elliptical trainer or cross trainer. Brief Patent Description - Full Patent Description - Patent Application Claims
BACKGROUND OF THE INVENTION [0001] The invention relates to a training apparatus, in particular an elliptical trainer or cross trainer, with two pedals which are fitted on a respective pedal bar, rear ends of the pedal bars being connected in an articulated manner to a respective pedal crank. In this case, the pedal cranks are arranged rotatably about an axis. [0002] Training apparatus of this type are disclosed, for example, in the utility model with the publication number DE 201 00 276 U1. Furthermore, training apparatus' of this type are produced and sold by various suppliers, including the applicant. [0003] The training apparatus disclosed in the publication with the publication number DE 201 00 267 U1 has two pedals which are connected fixedly to the associated pedal bars. A user of the training apparatus, who stands on the pedals of the training apparatus, therefore executes every movement which the pedal bars execute. The movement is essentially elliptical, for which reason the term elliptical trainer is also used. The training apparatus disclosed in the publication has the possibility of setting different strides, i.e. elliptical movements of different size, depending in each case on the users height. For smaller individuals with a smaller stride, an ellipse having smaller radii can be set, and for larger individuals having a larger stride, an ellipse having a larger radius can be set. [0004] Although the elliptical movement of the feet that is transmitted with the movement apparatus to the trunk of the body very closely approximates a natural running movement, it does not correspond 100% to the natural sequence of movement. The movement on a training apparatus of this type is therefore unfamiliar in particular to first time users. [0005] The invention is based on an object of permitting a more natural sequence of movement, in particular a more natural movement of the legs and the hips, for the user than in the case of the previously known cross trainers. SUMMARY OF THE INVENTION [0006] This object is achieved according to the invention by the pedals being mounted displaceably on the pedal bars. The pedals are mounted displaceably on the pedal bars in such a manner that they are displaced forward and rearward during use of the training apparatus. The pedals are therefore displaceable on the pedal bars during operation and do not execute the movement of the pedal bars one to one. As a result, a more natural movement is permitted for the user. [0007] The pedals are preferably connected in an articulated manner to a respective push bar, it being possible for these push bars to be connected in an articulated manner to a respective push bar crank. These push bar cranks are preferably arranged rotatably about the same axis about which the pedal cranks are already rotatably arranged. Via the push bar cranks and the push bars, each pedal is pushed to and fro on the pedal bar during operation of the training apparatus. The pedals therefore execute a defined movement on the pedal bars. By means of these movements of the pedals, the ellipse is overall shallower, which corresponds to a more natural sequence of movement. [0008] In a preferred embodiment of the training apparatus, the distances between the points of engagement of the push bars on the push bar cranks and the axis are adjustable. Adaptation to individuals having different strides is therefore possible. [0009] The pedal cranks and/or the push bar cranks may be completely or partially formed by circular disks. The points of engagements of the pedal bars on the pedal cranks and if appropriate the points of engagement of the push bars on the push bar cranks lie preferably in a plane which also includes the axis about which the pedal cranks and the push bar cranks rotate. [0010] The front ends of pedal bars of a training apparatus according to the invention can be connected in an articulated manner to a respective pedal lever. The pedal levers for their part can be fitted pivotably in a respective front bearing. This front bearing is preferably fitted with height adjustment to a front part of the frame of the training apparatus. The ellipse, which is normally aligned essentially horizontally, can be inclined upward or downward by the height-adjustability of the front bearing. By means of an inclination of this type, the sensation of going uphill or downhill can be imparted to a user. [0011] The training apparatus with a height-adjustable front bearing can have particular adjustment means for adjusting the height of the front bearing. These adjustment means may comprise a drive, in particular an electric motor, so that the adjustment of the front bearing does not have to take place manually. [0012] The adjustment means advantageously have elements for converting a rotational movement into a linear movement. Elements of this type may comprise a spindle on which a nut can be rotatably fitted. [0013] Handles on which the user can place his hands during the exercises are preferably fitted or integrally formed on the pedal levers. BRIEF DESCRIPTION OF THE DRAWINGS [0014] An exemplary embodiment of a cross trainer according to the invention is illustrated in more detail in the drawings, in which [0015] FIG. 1 shows a side view of the cross trainer; [0016] FIG. 2 shows a plan view of the cross trainer; [0017] FIG. 3 shows a view from the rear; [0018] FIG. 4 shows a view from the front; and [0019] FIG. 5 shows a perspective illustration. DETAILED DESCRIPTION OF THE INVENTION [0020] The cross trainer illustrated in FIGS. 1 to 5 has a frame with a lower part 1a and a front part 1b. The frame is produced essentially by two hollow profiles arranged at a distance from each other. The hollow profiles are largely guided parallel to each other, in particular in the region of the front part 1b of the frame. In a rear region of the lower part 1a of the frame, the hollow profiles are angled, so that they lie directly adjacent to each other in this region. 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