Patent Application
20140309081
1. Field of the Invention
The present invention relates to exercise apparatus. More specifically, the present invention relates to systems and techniques for exercising using sledge hammers, medicine balls and other similar apparatus.
2. Description of the Related Art
In the fitness industry, a plethora of machines and devices have been used to facilitate muscular development, body health and overall fitness. One such device is a sledge hammer. As is well-known by many with experience in the use of sledge hammers for construction, exercise and other purposes, the repetitive motion of lifting a sledge hammer works a number of muscle groups including triceps, latissimus dorsi, rectus abdominus, transverse abdominus, internal and external obliques, lateral deltoids, rear deltoids, anterior deltoids, glutes, quadriceps, and hamstrings. Supplemental benefits of using the sledge hammer include aerobic conditioning, neuromuscular facilitation, coordination and increased excess post-exercise oxygen consumption (EPOC).
Typically, a conventional sledge hammer has a wooden handle and a metallic head. The handle can range from 0.5 meters (1 ft 8 in) to a full 1 meter (3 ft 3 in) in length, depending on the mass of the head. The head mass is usually 1 to 3 kilograms (2.2 to 6.6 lb). Modern heavy duty sledgehammers come with 10 to 20 pounds (4.5 to 9.1 kg) heads.
Sledgehammers usually require two hands and a swinging motion involving the entire torso, in contrast to smaller hammers used for driving in nails. The combination of a long swinging range, and heavy head, increase the force of the resulting impact, (See http://en.wikipedia.org/wiki/Sledgehammer.)
Sledgehammers are increasingly being used as inexpensive exercise equipment; since all major upper body muscle groups need to put forth a significant amount of force when swinging a sledgehammer, it can easily be used to work muscles to failure as in resistance training.
When used for exercise, the hammer is struck against a flexible surface that safely dampens the momentum of the head. A rubber tire is often used as the hammer's target as its elasticity reduces the shock to the user's joints when used for this purpose.
Hence, conventional sledge hammers used for exercise typically require two components, a hammer and a target surface for safely receiving the impact of the hammer. This adds to the cost and limits the options of a conventional sledge hammer as an exercise solution.
In addition, most sledge hammers do not allow for the weight of the head to be changed or adjusted. Accordingly, a hammer may be too light for some users and too heavy for others.
Hence, a need remains in the art for a simple all in one low cost sledge hammer implementation for exercise purposes that enables hammer heads of different weights and sizes to be used as an all-in-one solution without the need for supplemental equipment.
The need in the art is addressed by the sledge hammer of the present invention. The inventive hammer includes an elongate handle having a longitudinal axis and a flexible generally geometrically uniform removable mass affixed to the handle at a distal end thereof.
In the illustrative embodiment, the mass is secured to the handle with a bolt adapted to extend through the mass and into the distal end of the handle. The bolt is threaded and engages mating threads in the handle. Preferably, a cone is disposed on the distal end of the handle between the handle and the mass to secure the mass to the handle. As an alternative, the mass may be secured to the handle with a Velcro strap.
In the best mode, the mass is a ball which may be perfectly round or have one or more flat surfaces. The ball should have some dampening properties and may be elastic is as well. Rubber would be an ideal material for the construction of the ball. The ball may be at least partially translucent. If so, a light may be mounted inside the ball.
A striking target may be used. The target may be a simple surface or object. In the alternative, the striking target may include an electronic sensor for measuring the number and strength of each hammer strike and provide a digital readout with respect thereto.
In addition, a camera or radio frequency (RF) ID tag may be used to sense the position of the hammer and provide a display on a monitor with respect to the position thereof. As an alternative, the display may be implemented with virtual goggles. The display may be implemented in the context of a virtual or gaming environment allowing the user to easily visualize the exercise session m a realistic or fantasy context.
Illustrative embodiments and exemplary applications will now be described with reference to the accompanying drawings to disclose the advantageous teachings of the present invention.
While the present invention is described herein with reference to illustrative embodiments for particular applications, it should be understood that the invention is not limited thereto. Those having ordinary skill in the art and access to the teachings provided herein will recognize additional modifications, applications, and embodiments within the scope thereof and additional fields in which the present invention would be of significant utility.
In the best mode, the mass 14 is a ball which may be perfectly round or have one or more flat surfaces. The ball 14 should have some dampening properties and may be elastic as well. Rubber would be an ideal material for the construction of the ball however the present invention is not limited thereto.
In the illustrative embodiment, the ball 14 is secured to the handle with a bolt 16 adapted to extend through the ball 14 and into the distal end of the handle 12. (As an alternative, the ball 14 may be secured to the handle 12 with a Velcro strap (not shown)).
The bolt 16, which may be steel, aluminum, plastic. or other suitable material, is threaded and engages mating threads in the handle 12 aligned around the longitudinal axis thereof. In the best mode, the bolt head 22 is flat and has a cutout not shown to receive a hex key or Allen wrench, or other suitable tool, to effect tightening or removal thereof. The ball has a conical recess 24 to effect a flush mounting of the bolt in the mass 14. The threaded bolt mounting arrangement allows for an easy interchangeability of the ball 14 allowing the user to readily to change the ball to select a lighter or heavier weight. Hence, the ball can be as light as 6 pounds and as heavy as 15 pounds.
The ball 14 may be at least partially translucent. If so, a light (not shown) may be mounted inside the ball. Electronics may be included inside the ball (i.e., piezoelectric transducer, battery, switch etc.) to cause the light to activate on impact for a pleasing visual effect when in use. The circuit could be set to cause the ball to glow brighter or in a different color depending on the number or intensity of the impact. This could add a level of motivation for the user to meet or exceed a threshold or workout goal.
As shown in
In the best mode, the optional battery, electronics, etc., discussed above, are disposed within the cone 20 and the light, if an mounted within the ball is a length of fiber optic that is illuminated by a lamp in the cone, not shown. In this case, in the best mode, the optical fiber light is disposed on or just below the surface of the ball, permitting illumination with ball materials that are not translucent. Metal contacts may be disposed on the surface of the ball connected to a lamp disposed within the ball and adapted to engage corresponding contacts in the cone to effect electrical connection to the circuitry therein in the event the optional display is implemented. Other electronic features could be included as well such as an audio capability, motion sensing, wireless connectivity, etc.
In use, the hammer 10 is repeated lifted and slammed onto a suitable surface or target. The target may be a simple surface or object.
Thus, the present mention has been described herein with reference to a particular embodiment for a particular application. Those having ordinary skill in the art and access to the present teachings will recognize additional modifications, applications and embodiments within the scope thereof. For example, a camera or radio frequency (RF) ID tag (not shown) may be used to sense the position of the hammer and provide a display on a monitor with respect to the position thereof. As an alternative, the display may be implemented with virtual goggles. The display may be implemented in the context of a virtual or gaming environment allowing the user to easily visualize the exercise session in a realistic or fantasy context.
It is therefore intended by the appended claims to cover any and all such applications, modifications and embodiments within the scope of the present invention.
Accordingly,
