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[0001] This invention relates to the field of strength training exercise devices, more particularly, to a device that develops strength and increases muscle mass in the forearms, upper arms, and shoulders. The invention, in particular, involves a multi-functional exercise device incorporating the use of free weights suspended by an exercise cord, and the use of a weight machine system to achieve the desired strength-training workout in developing the forearms, upper arms, and shoulders. There are various existing devices for strengthening the hands, wrists, forearms, and upper arms that operate on the principles of variable threading, tension, torque, and compression mechanisms. These devices range in degrees of effectiveness. Examples of prior art devices include U.S. Pat. No. 4,643,417 to Nieman, which discloses a manipulated exercise device comprising of two telescopic hollow tubes held together by a coupling mechanism. This internal coupling mechanism permits relative rotation of the two hollow tubes, via grippable outer surfaces, against two axially facing frictional surfaces within the tubes. Adjustment of pressure exerted on the frictional surfaces is controlled by a wrench externally. Another such device is seen in U.S. Pat. No. 3,184,234 to Struble, which discloses a hand-held device comprising a pair of cylindrical grips mounted coaxially with a friction member inserted there between, the grips being rotatable in opposing directions. End members may be tightened in the axial direction to increase or decrease the resistance.
[0002] Other issued patent devices such as U.S. Pat. No. 4,095,789 to Mueller, U.S. Pat. No. 4,838,542 to Wilkinson, and U.S. Pat. No. 4,695,094 to Ciemiega all lack the ability to significantly vary the weight or resistance of the device, rendering them less effective in strength training. U.S. Pat. No. 6,152,858, to Kolb utilizes free weight, but in an ineffective manner. All these aforementioned devices are also more complicate and expensive to produce.
[0003] It is the object of this invention to provide a simple and inexpensive to produce strength-training device directed at strengthening muscles and muscle groups in the forearms, upper arms, and shoulders, where the device can utilize free weights or be used in conjunction with weight machine a system to achieve the desired strength workout.
[0004] The invention is a strength-training device for developing strength and increasing muscle mass in the forearms, upper arms, and shoulders. The training device comprises in general a center joint piece that is connected to two gripping handles with fixed end caps. Unique features of the center joint piece include a concave surface at the top, an underbody cavity at the bottom, and a secure hole that is bored through the side just below the concave surface. The training device includes an exercise cord that is supported by a latching rod, which is positioned in the secure hole. The use of free weights with the exercise cord allows the user to develop the forearms and shoulders by raising and lowering the free weights through curling motion of the training device with arms extended and parallel to the ground. The exercise cord may be wrapped around the training device's end caps, longitudinally, for easy storage when training is complete. The use of a weight machine system in conjunction with the training device allows the user to develop the upper arms by performing bicep curls and triceps extension exercises.
[0005] An objective of this invention is to provide a simple and inexpensive to produce strength-training device directed at strengthening and increasing muscle groups in the forearms, upper arms, and shoulders.
[0006] A further objective of this invention is the provision of a training device which can readily adapt to a weight machine system or be used independently using free weights to achieve the desired strength workout in the forearms, upper arms, and shoulders.
[0007] A further objective of this invention is the provision of a training device that can vary the resistance level by increasing or decreasing the desire amount of weights, and tailors to the individual user's condition level.
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4 First cross-section directional view 5 Second cross-section directional view 10 The device of this invention 12 Main concave surface 13 Center joint piece 14a Cross-section wall of left gripping handle 14b Cross-section wall of center joint piece 15 Internal walls of underbody cavity 16 Column end cap 17a Left gripping handle 17b Right gripping handle 17c Left gripping handle internal wall 18a Left handle end cap 18b Right handle end cap 19 Exercise cord 20 Secure hole 21 End cap stopper 22 T-lock cavity 23 Underbody cavity 24 Main surface vertex line 25 End cap concave surface 26 End cap surface vertex line 27 Latching rod 28 Main rod column 29 T-lock arm 30 T-lock pin 31 T-lock arm housing slot 32a First end loop of exercise cord 32b Second end loop of exercise cord 33a Left hand 33b Right hand 34 Free weight disc (not part of invention) 35 Carabiner (not part of invention) 36 Weight machine pulley system (not part of invention) 37 Weight machine cable (not part of invention) 38 Weight machine weights (not part of invention) 39a First cord clip 39b Second cord clip
[0027] A perspective view of the strength-training device of this invention is illustrated at
[0028] The strength-training device
[0029] Center joint piece
[0030] The latching rod
[0031] To place latching rod
[0032] To secure latching rod
[0033] The exercise cord
[0034] The strength-training device
[0035] Second way: With the assistance of a weight machine system, properly attach carabiner
[0036] Third way: With the assistance of a weight machine system, properly attach carabiner
[0037] The exercise cord may be wrapped around the training device's end caps, longitudinally, for easy storage when training is complete.
[0038] The inventive strength-training device