Portable compact cycling trainer

Abstract

A micro, compact cycling utility with an adjustable and modifiable structure that can perform as cycling or exercise equipment. The invention encompasses a housing that can be used as a case and/or attachment, crank arms, pedals and a stand. In the exemplary embodiment, the crank arms and pedals and stand are modifiable and adjustable.

Claims

1. An exercise apparatus comprising: a housing having first and second spaced apart opposed sides; first and second support bearings carried respectively by said first and second spaced apart opposed sides in aligned coaxial relationship; an elongated shaft carried on said first and second support bearings and releasably carrying first and second arms extending from said elongated shaft radially from said shaft at axially spaced points along the axial extent of said shaft, in radial positions that are 180 degrees apart; said first and second arms releasably carrying first and second pedals; said housing being dimensioned and configured for storing said elongated shaft, said first and second arms and said first and second pedals within the housing when said pedals are released from said arms and said arms are released from said shaft.

2. The apparatus as described in claim 1 wherein said housing is substantially a parallelepiped shape.

3. The apparatus as described in claim 1 wherein said support bearings have an axis thereof disposed substantially in a vertical plane that bisects said housing.

4. The apparatus as described in claim 1 wherein said first and second sides are substantially square and said support bearings have an axis thereof disposed substantially in the geometric center of said sides.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The subject matter which is regarded as the invention is particularly pointed out and distinctly claimed in the concluding portion of the specification. The invention, however, both as to organization and method of practice, together with the further objects and advantages thereof, may best be understood by reference to the following description taken in connection with the accompanying drawings in which:

(2) FIG. 1 is an isometric view of a fully assembled embodiment of the present invention.

(3) FIG. 2A is a top view of a washer that is part of the assembly shown in FIG. 1

(4) FIG. 2B is a top view of a washer that is part of the assembly shown in FIG. 1

(5) FIG. 2C is a top view of a washer that is part of the assembly shown in FIG. 1

(6) FIG. 2D is a top view of a washer that is part of the assembly shown in FIG. 1

(7) FIG. 2E is a side view of the crank arm assembly, having sleeve shaped protector and reinforcement axially extending over the rectilinear rod shaped portion thereof, that is part of the assembly shown in FIG. 1,

(8) FIG. 2F is a top view of a pedal that is part of the assembly shown in FIG. 1,

(9) FIG. 2G is a top view of a pedal that is part of the assembly shown in FIG. 1,

(10) FIG. 2H is a side view of a housing that is part of the assembly shown in FIG. 1,

(11) FIG. 2I is a side view of a stand that is part of the assembly shown in FIG. 1 and which provides stability for the assembly,

(12) FIG. 3 is a top view of the disassembled parts of the apparatus disposed in the housing illustrating fit within the housing which facilitates transport and storage,

(13) FIG. 4 is the front view of the apparatus shown in FIG. 1,

(14) FIG. 5 is the back view of the apparatus shown in FIG. 1,

(15) FIG. 6 is a left side view of the apparatus shown in FIG. 1,

(16) FIG. 7 is a right side view of the apparatus shown in FIG. 1,

(17) FIG. 8 is a bottom view of the housing shown in FIG. 1, illustrating the interior of the housing,

(18) FIG. 9 is a top view of the apparatus shown in FIG. 1, with pedals visible on opposed sides of the housing,

DETAILED DESCRIPTION

(19) The following detailed description is of the best currently contemplated mode of carrying out exemplary embodiments of the invention. The description is not to be taken in a limiting sense but is made merely for illustrating the general principles of the invention.

(20) The fully assembled embodiment of the invention is comprised of a hollow substantially parallelepiped shaped housing 11 having opposed sidewalls 12, 14. The opposed sidewalls 12, 14 are provided respectively with 1st and 2.sup.nd circular bearing holes 16, 18. The two bearing holes 16, 18 are coaxial and dimensioned and configured for receiving a rectilinear portion of the crank arm assembly 20. More particularly, a central sleeve 22 is concentrically disposed with respect to coaxial parts of each of the 1st and 2nd crank arms. The central sleeve 22 releasably engages the 1st and 2nd crank arms 24, 26. Respective thumbscrews (Not shown) in some cases fix the 1st and 2nd crank arms 24, 26 to the central sleeve 22. Those skilled in the art will recognize that separation of the central sleeve 22 from the respective crank arms 24, 26 is necessary to disassemble the apparatus 10 for storage. Similarly, those skilled in the art will recognize that fixing the central sleeve 22 to the respective crank arms 24, 26 is necessary for operation of the apparatus as in exercise device.

(21) The housing 11 sits on a stand 15 that provides stability. First and second crank arms 24, 26 are attached to axial extremities of a rectilinear rod. First and second pedals 36 are respectively attached to the outboard part of the first and second crank arms 24, 26.

(22) The exemplary embodiment of the present invention is polymeric plastic, but other embodiments may use metal. The bottom of the housing 11 affixes to a stand which stabilizes the device 10 while the device 10 is in use. The portion of the crank arm assembly 20 which resides inside the housing 11 when the device 10 is fully assembled is referred to here as the interior portion. The portion of the crank arm assembly 20 which resides outside the housing 11 is referred to as the exterior portion. The crank arms 24, 26 extend through the bearing holes 16, 18 in the opposed sides 30, 32 of the housing 11 and fixed together inside the housing 11 to form a single assembly.

(23) In other embodiments the inboard extremities of the respective crank arms 24, 26 are not identical. More specifically, one crank has an inboard extremity that is a solid shaft and the other crank arm has an inboard axial extremity that is a hollow sleeve dimensioned and configured for concentric engagement with the solid shaft of the other crank arm. Some such embodiments of the present invention may provide a splined engagement between the 1st and 2nd crank arms. In a similar manner the embodiments using a sleeve to fix together two identical 1st and 2nd crank arms may also utilize a splined engagement to prevent relative rotation of one crank arm with respect to the other crank arm.

(24) Still other embodiments of the present invention prevent relative rotational movement between the 1st and 2nd crank arms by using a polygon shaped coupling between the 1st and 2nd crank arms to lock the position of the arms relative to each other when torque is applied.

(25) The exterior portions of the crank arms are cylindrical in shape in some embodiments. Other embodiments of the present invention may utilize a ball shaped locking detent to secure the crank arms 24, 26. The locking ball in such embodiments can be pressed to release a given crank arm. The exterior portions of the crank arms 24, 26 have a pedal 36 affixed to the end thereof which remains outside the housing 11. The pedals 36 freely rotate on their longitudinal axis to support normal cycling motion. When the current invention is being used, a user places his or her feet on the pedals 36 and moves his or her legs with a standard circular cycling motion.

(26) The apparatus according to the present invention can be quickly disassembled for storage or for transport. The pedals 36 can be removed from the crank arms 26 by pressing the locking mechanism and pulling them apart. The locking mechanism may be a ball locking detent. Other embodiments of the invention may use a different locking mechanism. The crank arms 26 can be separated from each other by similarly pressing the lock mechanism and pulling them apart. The stand can be separated from the housing. The pedals, crank arms and stand will then fit inside the housing 11.

(27) All publications and patent applications mentioned in this specification are indicative of the level of skill of those skilled in the art to which this invention pertains. All publications and patent applications are herein incorporated by reference to the same extent as if each individual publication or patent application was specifically and individually indicated to be incorporated by reference.

(28) Although the description above contains many specifics, these should not be construed as limiting the scope of the invention, but as merely providing illustrations of some of the presently preferred embodiments of this invention. Thus, the scope of this invention should be determined by the appended claims and their legal equivalents. Therefore, it will be appreciated that the scope of the present invention fully encompasses other embodiments which may become obvious to those skilled in the art, and that the scope of the present invention is accordingly to be limited by the appended claims, in which reference to an element in the singular is not intended to mean one and only one unless explicitly so stated, but rather one or more. All structural, chemical, and functional equivalents to the elements of the above-described preferred embodiment that are known to those of ordinary skill in the art are expressly incorporated herein by reference and are intended to be encompassed by the present claims. Moreover, it is not necessary for a device or method to address each and every problem sought to be solved by the present invention, for it to be encompassed by the present claims. Furthermore, no element, component, or method step in the present disclosure is intended to be dedicated to the public regardless of whether the element, component, or method step is explicitly recited in the claims. No claim element herein is to be construed under the provisions of 35 U.S.C. 112, sixth paragraph, unless the element is expressly recited using the phrase means for.