Multi-functional statioary bike for gymnastic purpose

Abstract

 A multi-functional stationary bike for gymnastic purpose, comprising a hand-exercise mechanism (30) mounted above a bike frame (10) and a foot-exercise mechanism (40) under said bike frame (10); said hand-exercise and foot-exercise mechanism (30,40) include a base (50,80) and a gear mechanism (60,90) respectively, wherein said gear mechanism (80,90) can rotate and roll along said base (50,60) by means of a gear and several bearings, whereby said hand-exercise and foot-exercise mechanisms (30,40) are allowed to do recipocal motions in forward, rearward, upward and downward directions simultaneously, whereby the users may take adequate full-body exercise.

Description

FIELD OF THE INVENTION

[0001] The present invention relates to a multi-functional gymnastic bike, particularly to a gymnastic bike easily for manufacture, assembly and available for the users taking a full-body exercise.

BACKGROUND OF THE INVENTION

[0002] In the art of conventional gymnastic bikes, it is to simulate the motion of pedalling a bike by means of holding a stationary handle with the hands and pedalling the pedals with feet for circular motions, whereby leg parts are exercised or simulating excercise equipment enables the hand portions pulling/extending the handles for stretching motions. However, the conventional gymnastic bikes are permitted for either a rotational motion around the stationary shaft or a stretching motion by the hand portions only, whereby a simultaneous exercise for both hand and foot portions is not allowed. In order to improve insufficient functions in the art of conventional gymnastic bikes, the applicant had disclosed U.S.A. Patent No. 4,842,269 and European Patent Application Serial No. 88311021.5 i.e. "Multi-functional Stationary Bike For Gymnastic Purpose", in which said bike mounting was equipped with an exercise mechanism for hand portions and a motion mechanism for foot portions, whereby the users were able to take a full body exercise through laterally reciprocating circulation motions produced by said hand-exercise mechanism, and longitudinally reciprocating circulation motions produced by said foot-exercise mechanism. However, said hand-exercise and foot-exercise mechanisms are complicated comprising of multiple members, not convenient for dismounting/assembly, and expensive in production/processing cost. The said design shall be improved further so as to enable said gymnastic bike wider applied hereof.

[0003] In view of aforesaid inconveniences for the application in the art of conventional gymnastic bikes and the prior art mentioned above, the applicant thereby has achieved the present invention through delicate thinking for research together with accumulated experiences in this field of design and manufacture plus numerous tests and improvements thereof.

SUMMARY OF THE INVENTION

[0004] The primary object of the present invention is to provide a multi-functional stationary gymnastic bike that is permitted the users taking a full body excercise adequately.

[0005] Another object of the present invention is to provide a multi-functional gymnastic bike that is simple for assembly and easy for processing/manufacture.

[0006] These and other objects and advantages of the present invention will become apparent from a reading of the following specification, taken in conjunction with the enclosed drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

[0007] FIG. 1 is a front view of the present invention.

[0008] FIG. 2 is a partial exploded front view of the hand-exercise mechanism.

[0009] FIG. 3 is a sectional view take along the lines X-X of FIG. 2., showing a layout of said hand-exercise mechanism.

[0010] FIG. 4 is a partially perspective view of the foot-exercise base.

[0011] FIG. 5 is a top view of said bike frame, wherein said front section, middle section and rear section have been removed in advance.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] Referring to the drawings, the multi-functional bike 1 of the present invention comprising:
a bike frame 1, a seat tube 15, a hand-exercise mechanism 30 and a foot-exercise mechanism. In which, said seat tube 15 is mounted at upper end of the rear section 11 of said bike frame 10 and is adjustable in height. Said hand-exercise mechanism 30 is laterally mounted at upper ends of middle section 13 and front section 12 of said bike frame 10. Said foot-exercise mechanism 40 is longitudinally mounted under a main body 14 of said bike frame 10. Reciprocating exercises generated from said hand-exercise and foot-exercise mechanism 30, 40 enable the user to take a full-body exercise.

[0013] Said hand-exercise mechanism 30 comprising a hand-exercise base 50 and a hand-gearing mechanism 60 (See FIG. 1); wherein, said hand-exercise base 50 is laterally fixed at upper ends of front section 12 and middle section 13 of said bike frame 10, and has a pair of elliptic rings 51 and a rack 52. The sectional surface of each said elliptic ring 51 is resembling a C shape, which one end extends outward vertically; said rack 52 is resembling an elliptic ring plate shape, which one end is equipped with gear teeth and both sides are formed plurality of protuberances 53 adapted to be attached with two positioning ring plates 54 which section is resembling an L shape respectively. Each ring plate 54 has plurality of holes 55 to accomodate said protuberances 53. The elliptic rings 51, the rack 52 and the ring plates 54 are attached tightly by several bolts 56, whereby the sectional surface of said hand-exercise base 50 is in a

shape (See FIG.2, 3). The rim at rear side of said hand-exercise base 50 is locked with an arc cover body 57. The sectional surface of said cover body 57 is resembling a U shape, with appropriate elasticity for covering the junction of said hand-exercise base 50, which assembly is convenient and available to provide better safety. The outer margin of said hand-exercise base 50 is equipped with two convex 58 that connects with the front section 12 and middle section 13 of said bike frame 10 by means of a long bolt 59 going through.

[0014] Said hand-gearing mechanism 60 is geared to the rack 52 of said hand-exercise base 50, whereby it can rise up and down reciprocally along the inner marginal face of said hand-gearing mechanism 60. Said hand-gearing mechanism 60 includes a housing body 61, a pivot 62 and a gear 63 driven by said pivot 62. In which, said housing body 61 is resembling an uncovered rectangular box, and the diameter of said pivot 62 in the housing body 61 is larger than that out of the housing body 61. Two long bolts 64 as the same height are mounted through two lateral walls at opening end of said housing body 61 respectively. Each of said long bolts 64 on both ends respectively is cased with a bearing 65, a washer 66 and nuts 67 for positioning said bearing 65. When said hand-exercise mechanism 30 is in reciprocating motions, whereby each said bearing 65 is rolling along said hand-exercise base 50 so as to provide supporting force and balance function. Said pivot 62 penetrates through said housing body 61, and which each end is pivoted with a crank 68 respectively. Said two cranks 68 are setup upward and downward counterly and which each end has a handle 69. Said gear 63 is mounted in said housing body 61 and is abrasively matching said pivot 62 tightly, which both sides are respectively attached with a guard plate 70 and a bearing 71 inserted the lateral wall of said housing body 61; said gear 63, said guard plates 69 and said bearings 71 all are penetrated by said pivot 62. Each said guard plate 69 has a greater outer diameter than that of said gear 63, whereby said gear 63 is guided precisely gearing with the rack 52 of said hand-exercise base 50 (See FIG. 3). Each said bearing 71 is covered outside by an annual plate 72 which has an U-shaped section and clamps the outer race of said bearing 71 tightly. Each said annual plate 72 is locked with said housing body 61 by bolts 73 setted on the edge of said plate 72.

[0015] When said hand-gearing mechanism 60 is geared on said hand-exercise base 50, whereby said gear 63 is geared with said rack 52, whereby said bearing 65 and said gear 63 abrasively roll on the inner wall of said elliptic ring 51 and the transverse portion of said plate 54, and clamping/rolling up and down at inner side of said hand-exercise base 50 by means of matching with multi-point contact of gear 63 and bearing 65. Said hand-gearing mechanism 60 will produce reciprocal circulating motions either in forward or reversal direction (subject to the direction of rotation of the crank) accompanying with the rotation of the crank 68 when said hand-exercise mechanism 30 is used hereof.

[0016] For assembling said hand-exercise mechanism 30, said pair of guard plates 70 and said gear 63 are setted into said housing body 61. Then, penetrating said pivot 62 into said housing body 61 to position said guard plates 70 and said gear 63. Further, inserting said bearing 71 into the lateral wall of said housing body 61 and positioning at said pivot 62, and covered by said plates 72 outside. Finally, mounting each said long bolt 64 through the lateral wall of said housing body 61 and positioning the bearings 65, the washers 66 and the nuts 67 at each long bolt 64 in sequence , whereby the assembly of said hand-gearing mechanism 60 is completed. To set each ring plate 54 between the relative long bolts 64 and move sideward to provide a support for said bearing 65, and insert the gear teeth of said rack 52 between said guard plates 70 of said hand-gearing mechanism 60 so as to gear with said gear 63 precisely; in addition, each said elliptic ring 51 is to wrap up the bearing 65 on the external side of said hand-gearing mechanism 60 from both sides, whereby each said bearing 65 will hold against inner wall of each said elliptic ring 51 to lock each elliptic ring 51, each ring plate 54 and said rack 52 hereof, and each end of said pivot 62 is connected with the crank 67 and handle 68 respectively, whereby the assembly of said hand-exercise mechanism 30 is completed. Said hand-exercise mechanism 30 not only is very easy for mounting/dismounting, assembly but also is very convenient for manufacture and maintenance, in addition with multi-point type firm assembly between said hand-exercise base 50 and hand-gearing mechanism 60, whereby said hand-exercise mechanism becomes more advantageous for utility.

[0017] Said foot-exercise mechanism 40 is longitudinally mounted under the middle section 13 of said bike frame 10, comprising a foot-exercise base 80 and a foot-gearing mechanism 90 (See FIG.1), wherein the structure of said foot-exercise mechanism 40 is similar to that of said hand-exercise mechanism 30, except said foot-exercise base 80 having an arc connection plate 81 at top edge and a convex 82 at lateral margin (See FIG. 4); said connection plate 81 is equipped with two arc holes 83 along the circular direction, whereby said foot-exercise base 80 is approximately vertical connected under the main body 14 of said bike frame 10 by means of mounting connection elements 84 (such as pin, bolt, screw etc. ) through.

[0018] By means of the assembly of said elements, the hand-gearing mechanism 60 of said hand-exercise mechanism 30 may allow to be relative to the user to do reciprocal motions either in a long or short distance through the rotation of said pair of cranks 68, whereby the user can do an appropriate exercise for the muscle and joints of hands, neck, waist of the user. The foot-gearing mechanism 90 of said foot-exercise mechanism 40 allows to be relative to the user to do reciprocal motions high or low through the rotation of cranks, whereby the user is convenient to do an appropriate exercise for the muscle and joints of feet portion.

[0019] The main boy 14 of said bike frame 10 is resembling an inverted U, including a front guard casing 16.A and several tube clamps 16.B clamping a pair of bent tubes 17 in parallel, and vertical type seat tubes 18.A and 18.B are respectively locked at each end of said pair of bent tubes 17 (See FIG. 5). Two adjusting members 19.A and 19.B are laterally mounted on said main body 14 for clamping said front section 12 and an adjusting rod 20 respectively, wherein each of said adjusting members 19.A and 19.B has a rotational handle 21.A (21.B), a long bolt 22.A (22.B) laterally through each said bent tube 17, a pair of concave flexible blocks 23.A (23.B) and a nut 24.A (24.B). To rotate said rotational handles 21.A, 21.B, whereby said flexible blocks 23.A, 23.B can be controlled to clamp said front section 12 and said adjusting rod 20 in different tightness and obliquity of said exercise mechanisms 30, 40 can be adjusted hereof, whereby it is very convenient for operation. A casing ring 25 is obliquely mounted on the tube clamp 16.B on top end of said main body 14 for inserting and positioning said L-shaped middle section 13.

[0020] The front section 12 and the middle section 13 of said bike frame are respectively pivoted with the convex 58 of said hand-exercise base 50, wherein said middle section 13 is connected with said convex 58 at one end and is vertically connected with said rear section 11 at the other end. A long hole 26 is radially formed through said front section 12 for adjusting, positioning and inserted by said long bolt 22 of said adjusting member 19.A, whereby said hand-exercise base 50 can obtain different angle of altitude/depression to allow the user taking an upper-body exercise. In addition, the adjusting rod 20 for extension adjustment and a pedal stand 27 are pivoted at rear side of said main body 14 of said bike frame 10. Said adjusting rod 20 is laterally pivoted with the convex 82 of said foot-exercise base 80, which is radially formed with a long hole 28 through for adjusting, positioning and inserted by said long bolt 22.B of said adjusting member 19.B, whereby said foot-exercise base 80 can obtain different angle of swing to allow the user taking lower-body exercises by means of fitting with said adjusting rod 20 and said arc connection plate 81 hereof.

[0021] With reference to above-said description, this multi-functional stationary bike of the present inven tion not only is easy for dismounting, assembly but also is convenient for maintenance. More specifically, it can be provided for the people taking a full-body exercise thereof.

[0022] Obviously, many modifications may be made without departing from the basic spirit of the present invention. Accordingly, it will be appreciated by those skilled in the art that within the scope of the appended claims, the invention may be practised other than has been specifically described herein.

Claims

1. A multi-functional stationary bike for gymnastic purpose, comprising:
a bike frame including a front section extensible in length, a middle section, a rear section and a main body;
a seat tube mounted at upper end of said bike frame;
a hand-exercise mechanism laterally mounted at upper ends of said front section and said middle section of said bike frame, including a hand-exercise base and a hand-gearing mechanism;
a foot-exercise mechanism longitudinally mounted under the main body of said bike frame including a foot-exercise base and a foot-gearing mechanism;
it is characterized that:
said hand-exercise base is laterally mounted on the front section and the middle section of said bike frame and includes a pair of elliptic rings and a rack; the sectional surface of each said elliptic ring is resembling a C shape, which one end extends outward, said rack is resembling an elliptic ring shape , which one end is equipped with gear teeth and both sides are attached with a pair of positioning ring plates which has an L section respectively; said elliptic rings, said rack and said positioning ring plates are assembled by bolts, whereby the sectional surface of said hand-exercise base is resembling a

shape;
said hand-gearing mechanism includes a housing body, a pivot through said housing body and said gear; the diameter of said pivot in said housing body is greater than that out of said housing body; said gear is mounted in said housing body and is abrasively pivoted by means of said pivot for gearing the rack of said hand-exercise base;
said foot-exercise mechanism is longitu-dinal ly mounted under the main body of said bike frame, and includes a pair of elliptic rings and a rack; the sectional surface of each said elliptic ring is resembling a C shape, which one end extends outward, said rack is resembling an elliptic ring shape, which one end is equipped with gear teeth and both sides are attached with a pair of positioning ring plates which has an L section respectively; said elliptic rings, said rack and said positioning ring plates are assembled by bolts ; whereby the sectional surface of said foot-exercise base is resembling a

shape;
said foot-gearing mechanism includes a housing body, a pivot through said housing body and a gear; the diameter of said pivot in said housing body is greater than that out of housing body; said gear is mounted in said housing body and abrasively pivoted by means of said pivot for gearing the rack of said foot-exercise base.

2. The multi-functional stationary bike for gymnastic purposes of claim 1, wherein an arc cover body is locked at ring edge on the rear side of said hand-exercise base and is adequate to cover the junction of said hand-exercise base; the sectional surface of said cover body is resembling an U shape and equipped with appropriate elasticity.

3. The multi-functional stationary bike for gymnastic purposes of claim 1, wherein each housing body of said hand-gearing mechanism and foot-gearing mechanism is resembling an uncovered rectangular box; at least one long bolt is penetrated through each lateral wall at the opening end of said housing body; each said long bolt on both ends respectively is cased with a bearing, a washer and a nut for positioning said bearing.

4. The multi-functional stationary bike for gymnastic purposes of claim 1, wherein each said gear of said hand-gearing mechanism and foot-gearing mechanism is locked with a guard plate and a bearing inserted in the lateral wall of said housing body respectively at both ends; each said guard plate has a greater outer diameter than that of said gear; each said bearing is covered outside by an annual plate which has an U-shaped section and is locked with said housing body by bolts setted on the edge thereof.

5. The multi-functional stationary bike for gymnastic purposes of claim 1, wherein an arc connection plate is locked at top edge of said foot-exercise base; said connection plate is equipped with two arc holes along the circular direction.

Drawing