Magnetic control multifunctional exercise apparatus

[0002] 1. Field of the Invention

[0003] The present invention relates to a magnetic control multifunctional exercise apparatus, and more particularly, to a device utilizing magnetic control resistance mechanism to create the resistance for achieving a better exercise effect.

[0004] 2. Description of the Prior Art

[0005] First of all, referring to the attached document of U.S. Pat. No. 5,569,138, named “MULTI-PURPOSE EXERCISING APPARATUS”, this invention belongs to the same inventor of the present invention. In this invention, two supporting arms for adjusting angle are disposed at two sides of the top of a base frame. An elastic rope extends from the inside of both supporting arms and is connected with a pull ring with which the upper limb of the user pulls. Meanwhile, the inside of the base frame is provided with another rope which extends to the front end of the base frame and is fixed to a resisting arm pivoted with the base frame, thereby enabling the user to use the lower limb to push the resisting arm for achieving an exercise effect of four limbs.

[0006] Though the aforementioned prior art is exactly applicable, the adjusting mechanism in design is too complicated (see FIGS. 2 and 3), thereby causing a great cost burden. Meanwhile, the fatigue of the elastic ropes will appear when they are used for a certain period. Moreover, no adjusting possibility of the elastic value is available. Thus, the exercising resistance can't meet the needs of the user for a long time.

[0007] It is a primary object of the present invention to remove the above-mentioned drawbacks and to provide a magnetic control multifunctional exercise apparatus in which the elastic rope is replaced with the magnetic control resisting mechanism whose exercising resistance is adjustable by an adjusting device. Moreover, a simplified supporting arm adjusting locating member is utilized to simplify the whole structure and to considerably reduce the manufacturing costs.

[0008] The accomplishment of this and other objects of the invention will become apparent from the following description and its accompanying drawings of which:

[0009] FIG. 1 is a perspective view of the present invention;

[0010] FIG. 2 is a side view of FIG. 1;

[0011] FIG. 3 is an perspective exploded view of a magnetic control resisting mechanism of the present invention;

[0012] FIG. 4 is a front view of the present invention;

[0013] FIG. 5 is a schematic drawing of the action of the present invention; and

[0014] FIG. 6 is another schematic drawing of the action of the present invention.

[0015] First of all, referring to FIGS. 1 and 2, a base frame 10 of the present invention includes a seat pad 11, an back pad 12, two hollow supporting arms 13 pivotably connected at the top thereof, a resisting arm 14 pivotably connected at the front end thereof and a magnetic control resisting mechanism 20 at the bottom thereof. A plurality of pulleys are utilized in combination with two ropes 30, 40 to connect with the supporting arms 13 and the resisting arm 14 so that the user can pull the ropes 30 of the supporting arms 13 or push the resisting arm 14. By means of the interconnection between the ropes 30, 40, a flywheel 21 of the magnetic control resisting mechanism 20 will unidirectionally turn to achieve the expected magnetic resistance.

[0016] The first rope 30 extends from one of the supporting arm 13 into a upright rod 15 of the base frame 10 while the upright rod 15 is provided with an up and down movable pulley block 31. Thereafter, the first rope 30 extends through an upper pulley 32 of the pulley block 31 and exits from another supporting arm 13. One end of the second rope 40 extends around a pulley 22 for many times and then goes upwards to enter into the upright rod 15 of the base frame 10. After the second rope 40 extends through a lower pulley 33 of the pulley block 31, it extends from the lower side of the base frame 10 in the direction of the resisting arm 14 at the front end of the base frame 10. After it extends around a limit pulley 16 in the resisting arm 14, the other end of the second rope 40 is fixed at a certain position of the base frame 10.

[0017] As shown in FIG. 3, the magnetic control resisting mechanism 20 includes a flywheel 21, a pulley 22, a spring band 23, an outer cover 24 and several screws 25. The magnetic control resisting mechanism 20 is pivotably connected to a cross rod 17 of the base frame 10 by means of a shaft 26 and two bearings 27. The spring band 23 includes a projecting piece 231 to insert into a slot 221 of the pulley 22. Accordingly, when the pulley 22 rotates in a preset direction because the second rope 40 is pulled, the spring band 23 will be in a compressed state. After the external force disappears, the pulley 22 rotates in the reverse direction by means of the action of the spring band 23. Meanwhile, the second rope 40 restores itself. Besides, the flywheel 21 is inserted on the shaft 26 by means of a unidirectional bearing 211. When the pulley 22 rotates due to the pull force of the second rope 40, the flywheel 21 will be brought into a unidirectional rotation. When the pulley 22 rotates in the reverse direction because of the restoring force of the spring band 23, the flywheel 21 won't be influenced.

[0018] In addition, the flywheel 21 includes a magnet set 28 which is kept away from the flywheel 21 and the both don't contact with each other. In addition, a spring 281 is provided at the rear end of the magnet set 28 while a cable 282 and an adjusting device 29 are disposed at the other end of the magnet set 28. The clearance between the magnet set 28 and the flywheel 21 can be effectively adjusted by the extension part 29 and the cable 282 so that the exercising resistance of the flywheel 21 can be controlled.

[0019] As illustrated in FIG. 4, the adjacent side of both supporting arms 13 are fitted with teeth 18. A synchronic displacement is created by means of adjusting a locating knob 19 to get different exercising positions (see FIGS. 5 and 6).

[0020] The arrangement of the ropes 30, 40 is dependent upon several guide pulleys or limit pulley 16 for controlling the direction thereof and for preventing the ropes 30, 40 and the adjacent components from interference. These belong to the prior art and are not the features of the present invention so that further descriptions thereof are not given hereinafter.

[0021] Many changes and modifications in the above-described embodiment of the invention can, of course, be carried out without departing from the scope thereof. Accordingly, to promote the progress in science and the useful arts, the invention is disclosed and is intended to be limited only by the scope of the appended claim.