An ergonomic workstation with a reduced or minimal footprint comprises a modified treadmill component and a workstation component. In one embodiment, a substantial portion of the workstation's support structure fits under the treadmill component so that the overall footprint of the treadmill workstation is minimized. Additional lateral stability of the workstation component is ensured by its proximal location under the heavy treadmill component. A vertical support extends from the base of the workstation component and supports a vertically oriented desk and monitor. In another embodiment, a single vertical workstation support enables adjustability at more than one point. Because both the screen and the desk are connected to the single vertical support, a user may quickly adjust both the desk surface and the viewing monitor to appropriate, individually tailored heights with minimum effort. Once these adjustments are accomplished, the user may simultaneously type on a keyboard at a customized desk height, view a screen at customized eye level, and walk on the treadmill and reduce stress to the user's body.
This application claims the benefit of the filing date of U.S. Provisional Application No. 61/366,968, filed Jul. 23, 2010. The entire disclosure of U.S. Provisional Application No. 61/366,968, filed Jul. 23, 2010, is incorporated herein by reference as if set forth in its entirety.FIELD OF THE DISCLOSURE
The present disclosure generally relates to office furniture, and more specifically, to office furniture with ergonomic adjustability that also functions as exercise equipment and a workstation.BACKGROUND OF THE DISCLOSURE
A traditional office environment, which is one where the employee spends a large portion of a typical workday seated working behind a desk, has produced a largely sedentary workforce. This suggests that the office environment may be harmful and that a lack of exercise could actually cause chronic, costly, and debilitating diseases.
Moderate exercise each day could improve and increase employee productivity, while reducing the risk of chronic and debilitating diseases. To burn calories and stay fit is a tough challenge for the modern office worker. Most people whose work does not entail considerable physical exertion are fully aware that they would enjoy better health if they exercised more. But with the five-day work week, oftentimes only the weekends provide the free time for this.
Office cardio exercise can be a solution for many employers who desire to cut costs and improve workplace productivity and employees interested in improving their overall health and work related performance and effectiveness. Furthermore, employee exercise could boost endorphin levels, relieving stress and providing a boost to their self-confidence, which could benefit job performance. As a result, office employees may benefit greatly from an in-office exercise program.SUMMARY OF THE DISCLOSURE
Briefly described herein are a plurality of embodiments of an ergonomic workstation (i.e. an article of furniture) for incorporating performance of work related activities while at the same allowing the user to exercise. The workstation may be considered a single structure that may interface with an exercise element or the ergonomic workstation may be considered the combination of the single structure workstation in combination with the exercise element (i.e. an exercise platform). The exercise element may be a treadmill, a stationary cycle, an elliptical stepping machine, or any substantially similar stationary exercise device. The workstation, or article of furniture, further comprises a substantially flat base having a first portion sized and configured to engage with a lower surface of the exercise platform, wherein the base further comprises a receiving area for a central processing unit. The article of furniture also comprises a support structure extending from a second portion of the base and arranged toward a first end of an exercise element, the support structure having a proximal end and a distal end, wherein the distal end is attached to the base and the support structure is able to telescope in a vertical direction. A work platform is attached to the support structure and a viewing monitor is attached to the support structure. The viewing monitor is generally located at about the proximal end but the monitor may be adjustable between the proximal end and the work platform.
In another embodiment. a workstation comprises a support base in operative communication with an exercise device, the support base comprising an elongate tongue to engage with a base of the exercise element, wherein the elongate tongue may have an adjustable length and width to secure the base to the exercise element. A generally vertical hollow telescoping support structure extends from the base upward and has a first end attached to the base and a second end opposite the first end. A work platform, which is adjustable or movable is attached to the support structure and a viewing monitor, which is adjustable or movable is attached to the support structure at about the second end, wherein the monitor is vertically adjustable between the second end and the work platform. A plurality of electrical connections extending from at least the viewing monitor through the hollow support structure to a central processing unit supported on the base.
Additional features and advantages will be set forth in the detailed description that follows. These additional features and advantages will in part be readily apparent to those skilled in the art from the detailed description, or recognized by practicing the embodiments as described herein, including the detailed description and aspects of the disclosure that follows, as well as the appended drawings.
It is to be understood that both the foregoing summary and the following detailed description are merely exemplary of preferred embodiments, and are intended to provide an overview or framework to understanding the nature and character of the claims. The accompanying drawings are included to provide a further understanding, and are incorporated in and constitute a part of this specification. The drawings illustrate the exemplary embodiments, and together with the description serve to explain principles and operation of the various embodiments.
The components of the following figures are illustrated to emphasize the general principles of the present disclosure and are not necessarily drawn to scale. Reference characters designating corresponding components are repeated as necessary throughout the figures for the sake of consistency and clarity.
An ergonomic workstation design is disclosed having a treadmill component or exercise element in combination with a working area where the two cooperatively interface but with have no significant physical connection between the exercise element and the working area. As is disclosed, it will be understood by the skilled artisan that the term “treadmill component” may also mean stationary bicycle, stationary rowing machine, stationary elliptical stepping machine or any stationary exercise component wherein the user may exercise and accomplish a non-exercise related activity (i.e. tasks related to employment or work) concurrently. The term “working area” used throughout this disclosure is understood to mean a location where one performs work, such as a desk or workspace. The low profile of the workstation optimizes the use of space by minimizing the workstation's footprint and by eliminating any unnecessary supports surrounding the treadmill component. The term “low profile” used throughout this disclosure is understood to mean that the profile of the workstation (i.e. the workstation size, workstation aspect ratio, workstation weight and workstation footprint) have been reduced. The workstation design further conceals and secures components and wires or connections, and the workstation provides multiple daily users with quick and efficient means of adjusting both the height of the work area relative to the treadmill component and the height of a viewing screen relative to at least the height of the work area. Thus allowing each user to work and exercise at their respective optimum mobile-working posture. The ergonomic workstation allows a user to exercise while performing non-exercise related tasks.
Depending on the type of work the user is performing, the user is often required to adjust their head, shoulder, and arm positions while working at the workstation. The present ergonomic workstation affords the user the flexibility to ergonomically adjust the workstation's viewing monitor to his standing eye level, as well as the work area to his appropriate and comfortable typing level, may eliminate straining the back or neck. Further, by using the present ergonomically adjustable workstation design, the user may experience better posture, health, and enjoy the benefits of daily exercise while at work.
Employers providing ergonomically adjustable workstations and employees using with ergonomically adjustable treadmill workstations will reap rewards in decreased healthcare cost and realize improvement in morale and health. A single, easily and quickly adjustable workstation is cost effective because it can rapidly adjusted to accommodate a wide variety of unique users in a given day as well as a wide variety of body types in a given day. Common computer networks, wifi networks and wireless technologies may allow many users to access their respective workloads from the same computer throughout the day. As an example, an employer may only need to provide one adjustable workstation for every five employees. This is in stark contrast to prior workstation designs, which are bulky and take up excessive space. The present design presents a minimized footprint without loosing functionality. This workstation may be unobtrusively featured in the common areas of offices, in gyms, or in a variety of other facilities where space must be conserved.
The benefits of working at an ergonomic treadmill workstation are superior to the traditional sedentary work-style that most employees struggle with today. Record numbers of chronic back pain sufferers, a dramatic rise in the prevalence of obesity among office workers, and the rising cost of corporate healthcare, all suggest that the sedentary method of office work is harmful. The human body is designed to spend the majority of its time upright and in motion.
The present workstation disclosed herein allows quick and efficient adjustment of the viewing monitor to standing eye level, and adjustment of the work area to an optimum level for typing while walking. The workstation is space saving and more stable than previous designs. The present invention allows a user to maintain a healthier mobile posture than any previous workstation design.
Designs for both treadmill workstations and space saving standalone vertically oriented computer stations are now common in the field of office furniture. The desire to save space brought about many designs for vertically oriented computer workstations. For example, as discussed in U.S. Pat. 6,298,794 to Brown, a vertically adjustable computer workstation with a single telescoping support is disclosed. However, single support workstations have failed to be significantly implemented into the real world because of a significant drawback, i.e. all single support computer workstation designs suffer from a high center of gravity and fail to provide a workstation that is safe and laterally stable enough for day to day use in the workplace.
The common single support workstation that can accommodate standing users typically supports the work area and viewing monitor with a base that occupies an excessive amount of space. The large base, which is required to sufficiently stabilize a single support workstation, poses a tripping hazard to users and can substantially negate the space saving benefits of the workstation itself.
In the present disclosure, a treadmill workstation design that integrates a treadmill with a single support computer workstation solves both problems associated with standard vertically oriented workstations. In this design, the large space that was previously required for stabilization of the workstation is substantially transformed into a useful exercise component. In addition, sufficient stability of the single support workstation is ensured by its integration with a heavy, stable treadmill.
Many of the prior art workstations are not practical for use in a public or semi public place such as a workout facility or a common area in an office complex. Previous designs fail to present an effective way for a user to adjust both the screen height of his monitor and the height of his desk to his preferences in a quick manner that will not take excessive time from his workout. Rapid adjustability of the viewing monitor and work area is a desired feature in a situation where several people use the same workstation throughout the day. Also, neither present an ability to conceal component connections (i.e. electrical wires) or secure the computer and monitor portion of the workstation. Thus, components of previous designs are significantly susceptible to tampering or theft.
Additionally, previous designs are unsuited for public, or semi-public spaces because of their excessive footprint. Excessive clutter proximate the sides of the treadmill from the support structure presents additional danger to the user of the workstation. For example, a user may need to dismount a moving treadmill workstation quickly to avoid injury. As another example, a user may impact or contact unnecessary lateral supports (i.e. during dismount) and suffer serious injury. Thus, a traditional desk with sides or a desk with any type of support that occupy a footprint on either side of the treadmill, poses additional and undesirable risk.
Some prior art workstations feature a treadmill workstation design wherein the treadmill component and the workstation component are significantly structurally connected. Practically speaking, a significant connection between the two components causes an undesirable transfer of motion from the feet of a user, into the treadmill, and then into the workstation component. This transfer can cause undesirable shaking or vibration of a monitor screen or a keyboard that is supported by the workstation. The transfer of motion throughout a traditional treadmill workstation significantly impairs a user's ability to concentrate on their work.DETAILED DESCRIPTION
The present disclosure is directed to a workstation for use in an office environment or exercise facility environment. Another aspect of the present disclosure is the use of a workspace in a private or semi-private environment. Yet another aspect of the present disclosure is directed to office furniture that incorporates aspects of exercise equipment. Although disclosed primarily within the context of a workstation for use in an office environment, the skilled artisan will recognize that the principles of the present disclosure are not limited to a workstation for use in an office environment, but extend to a workstation used in combination with a stationary exercise element, such as a treadmill, a stationary bicycle or elliptical stepping machine, wherein the user may perform specified non-exercise related tasks while exercising, in a variety of environments.
The workstation is an ergonomic workstation and is therefore concerned with the “fit” between people and their technological tools and environments. The workstation takes account of the user's capabilities and limitations in seeking to ensure that tasks, equipment, information and the environment suit each user by offering components that are easily and quickly adjustable to best match the user's particular preferences. Further, the workstation functions to be used in concert with a stationary exercise element so a user (i.e. an employee) may be able to continue performing non-exercise related activities while at the same time exercising. It is anticipated that the workstation will be sufficiently “universal” in connectivity with the exercise element such that the workstation will be compatible and usable with a wide variety of exercise elements manufactured by a wide variety of manufacturers.
It is understood that the ergonomic workstation as disclosed in this document may mean a stand alone structure (see
The support structure 18 has a first end 20 and a second end 22. And as illustrated, may be a generally vertical support structure 18, although it is not required that the support structure 18 be generally vertical. The support structure 18 may be generally cylindrical in cross section; however, other cross sectional shapes may be suitable and may depend on the particular application. The first end 22 is arranged proximate the flat base 4 and is attached to the flat base 4. The manner of attachment of the first end 20 to the flat base 4 may be by any means that provides a secure and robust connection between the two elements. For example, the attachment means may be a mechanical attachment means such as a welded joint, a brazed joint, or a bolted joint. In some embodiments, the attachment means may be by interference fit between the first end 20 and the flat base 4. In other embodiments, the attachment means may be an attachment means that permits relative motion, such as, for example, rotation or pivoting, between the first end 20 and the flat base 4. In yet other embodiments, the support structure 18 and the flat base 4 may be fabricated or cast as a single element.
Disposed along the support structure 18, between the first and 20 and the second end 22 are a work platform 24 and a viewing monitor 26. The work platform 24 may be a substantially flat work platform 24 that has a substantially horizontal work surface 27. The work surface 27 is the location where a user may perform non-exercise related activities, such as, for example, work activities associated with the user's employment. The viewing monitor 26 is arranged to be substantially vertical and may be arranged closer to the second end 22 than the work platform 24. The work platform 24 and the viewing monitor 26 may be attached to the support structure 18 by any appropriate means, including rigid and non-rigid, or flexible means of attachment. Also, the work platform 24 and the viewing monitor 26 may be attached to the support structure 18 by any suitable adjustable means such as adjustable clips, adjustable flanges, quick release and locking devices, or any attachment mechanism that satisfies requirements of the environment. Ideally, the viewing monitor will be adjustable to a height that is convenient for the user to view and the work platform may also be adjustable to a height that is convenient for the user to perform non-exercise related work or activities.
In use, the workstation 2 and exercise element 12 are brought together by moving the workstation 2 toward the exercise element 12 in a direction 32 until the support structure 18 of the workstation is proximate the first end 14 of the exercise element 12. The workstation 2 may attach or connect to the exercise element 12 to secure the components 2, 12 together. The support features 10 of the workstation 2 may engage with the exercise element 12 by, for example, bolting to the exercise element 12; or the weight of the exercise element 12 may secure the workstation 2 in a proper position, which is understood to be a position having sufficient clearance in direction 32 between the workstation 2 and exercise element 12 and sufficient support for the workstation 2 to remain stationary and not susceptible to excessive interaction, such as, for example, vibration, impulse, or shock with the exercise element 12 during use. A damping material 30 may be placed between an upper surface of the support features 10 and the exercise element base 16. It is anticipated that vibration, oscillatory loads, and/or impulsive loads may be transferred from the exercise element 12 to the workstation and the damping material may reduce or minimize some of the load. A damping system may be used in addition to or instead of a damping material. The damping system may include shock absorbing elements to dissipate the load applied to the workstation 2 by the exercise element 12.
After properly adjusting the workstation (i.e. adjusting the viewing monitor height and the work platform height) the user may engage with the exercise element 12 and begin exercising. While exercising, the user may begin performing non-exercise related work on the work platform 24. The workstation 2 is designed to provide the user with the ability to work comfortable as well as simultaneously exercise.
The first end 20 of the support structure 18 is seen in the flat base 4. The first end 20 may or may not extend completely through the receiving portion 8 of the flat base 4 and the extent to which the first end 20 does extend through the flat base may depend upon the type of attachment means used to affix the first end 20 to the flat base 4.
As illustrated, the exercise element supports 34 will raise the exercise element base 16 off a surface the workstation 2 and workstation are resting upon. In some embodiments, a support height 35 may be almost the same as a flat base height 5, with the flat base height being sufficiently greater than the support height 35, thereby assuring that the weight of the exercise element 12 may partially secure the workstation 2 in the proper position. Additional connections or attachments may be used to workstation 2 to the exercise element 12. A partial list of connections or connection elements may at least include clamps, bolts, pins, welded connections, screws, chemical bonds or adhesives, and combinations thereof. It will be understood by the skilled artisan that the connection should be sufficient to secure the workstation 2 and exercise element 12 in place relative to each other, but should be not such a rigid connection that any motion or load generated while using the exercise element 12 is transferred to the workstation 2. Furthermore, the weight of the exercise element 12 alone may be sufficient to secure the workstation 2 and exercise element 12 in place relative to each other.
The viewing monitor 26 has a viewing monitor upper surface 52 and a viewing monitor lower surface 54, the distance between the two establishing a viewing monitor height 56. The viewing monitor 26 is sufficiently adjustable so a center of the viewing monitor height 56 is properly positioned to allow the user to work comfortable and efficiently, i.e. ergonomically. The viewing monitor may be adjusted using any means that provides the required range of motion and ease of use. For example, the viewing monitor may be adjusted using a rack and pinion gear system, a locking telescopic mechanism, a swage lock mechanism, a clamping mechanism, a quick release mechanism, an adjustable locking sleeve, and the like.
The work platform 24 has a horizontal reference line 60 and the viewing monitor has a horizontal reference line 61. The work platform may be angularly adjusted in plane to a work platform angle 64 and the viewing monitor may be adjusted in plane to a viewing monitor angle 62. The work platform angle 64 and the viewing monitor angle 62 may be adjusted to a convenient position by the user to achieve a comfortable working position and a comfortable exercise position. These positions will vary depending on the user's own body dimensions. The distance between the viewing monitor horizontal line 61 and the work platform horizontal line 60 establishes a vertical spacing 66 between the 2 elements. The viewing monitor 26 may be moved independently of the work platform 24, or they may be moved together by a fixed ratio, or they may be moved together by a variable ratio. In some embodiments, the vertical spacing 66 may be optimized to a single setting, thereby accommodating a wide variety of users. Some exemplary fixed ratios may be 1:1, 2:1, 3:1, 4:1, 2.5:1, 3.5:1, 4.5:1, where the first or second number of the ratio may be either the work platform 24 or the viewing monitor 26.
Furthermore, the viewing monitor 26 and the work platform may be rotated out of plane about an axis parallel with the support structure 18.
A horizontal member 72 extends between support legs 70 and a substantially vertical support structure 18 extends from the horizontal member. The support structure 18 is arranged proximate a center of the horizontal member 72, and the support structure 18 is generally cylindrical in cross section. The support structure 18 may be a telescoping support structure 18 having a telescoping member 19 that is in a telescoping relation with the support structure 18. The structural support 18 and the telescoping member 19 function to allow a variety of different height adjustments in a vertical direction. The support structure 18 and telescoping member 19 may be hollow and function as a conduit to contain and direct a plurality of electrical connections 50 extending through telescoping element 19
A work platform 24 may be disposed along the structural support 18 and may be secured or attached to either the structural support 18 or the telescoping member 19 using any of the means discussed herein. A viewing monitor may be disposed along the telescoping member 19 and may be secured or attached to the telescoping member 19 using any of the means discussed herein. The telescoping operability of the support structure 18 and telescoping member 19 may provide quick and easy vertical adjustment of the work platform 24 and the viewing element 26.
In many of the aforementioned embodiments, the work platform 24 and the viewing monitor 26 may be rotatably disposed on the support structure 18 so a user no longer wanting to exercise while performing non-exercise related activities may rotate both the work platform 24 and the viewing monitor 26 an angular amount ranging from about 30 degrees to about 180 degrees.
It will be apparent to those skilled in the art that various other modifications and variations can be made without departing from the spirit or scope of the present disclosure.
1. An article of furniture, comprising:
- an exercise element;
- a substantially flat base having a first portion sized and configured to engage with a lower surface of the exercise platform;
- a support structure extending from a second portion of the base and arranged toward a first end of an exercise element, the support structure having a proximal end and a distal end, wherein the distal end is attached to the base;
- a work platform attached to the support structure, wherein the work platform is adjustable relative to the support structure; and
- a viewing monitor attached to the support structure at about the proximal end, wherein the monitor location is adjustable relative to the support structure.
2. An ergonomic workstation, comprising:
- a workstation having a support base in communication with an exercise device, the support base comprising an elongate tongue to engage with a base of the exercise device, wherein the elongate tongue has an adjustable length and width to secure the base to the exercise device;
- a generally vertical hollow telescoping support structure extending from the base upward having a first end attached to the base and a second end opposite the first end;
- an adjustable work platform attached to the support structure;
- an adjustable viewing monitor attached to the support structure at about the second end, wherein the monitor location is vertically adjustable between the second end and the work platform; and
- a plurality of electrical connections extending from at least the viewing monitor through the hollow support structure to a central processing unit supported on the base.
3. An article of furniture, comprising:
- an exercise platform;
- a support structure extending from an upper surface of a first end of the exercise platform, the support structure having a proximal end and a distal end, wherein the distal end telescopes in a vertical direction;
- a work platform attached to the support structure; and
- a viewing monitor attached to the support structure at about the proximal end, wherein the monitor location is adjustable between the proximal end and the work platform.
4. An article of furniture according to claim 3, wherein any significant contact between the work platform and the exercise platform is significantly buffered by material that substantially prevents transfer of motion, transfer of vibration, and transfer of impulse between the two platforms.
5. An article of furniture according to claim 3, wherein the substantially vertical support is located on the bilateral axis of symmetry of the exercise platform.
6. An article of furniture according to claim 3, wherein the manipulation of the platform's exercise functions can be accomplished through the work platform.
7. An article of furniture according to claim 3, wherein the viewing monitor and the work platform may be independently adjusted.
8. An article of furniture according to claim 3, wherein the support structure comprises a single vertical support member, and wherein electrical connections related to the function of at least one of the viewing monitor, the computer, and the exercise platform, are substantially housed interior to the single vertical support.
9. An article of furniture according to claim 3, where the viewing monitor and the work platform may be vertically adjusted at a constant ratio.
10. An article of furniture according to claim 3, where a computer enclosure to prevent access is attached to the work platform.
11. An article of furniture according to claim 3, where the operation of the work platform is exclusively maintained and adjusted by computer software that has been installed onto the operating system of a computer which is attached to any other component on the workstation.
12. An article of furniture according to claim 11, where a single power cable supplies power to both the work platform and exercise platform.
13. An article of furniture according to claim 11, including tamper proof means of securing the viewing monitor and computer's processing unit.
14. An article of furniture according to claim 3, where a desk surface or work surface associated with the work platform is tilt adjustable in relation to the support structure.
15. An article of furniture according to claim 3, where the viewing monitor may be a laptop computer that has been provided by an individual user and connected with any of the work additional components.
16. An article of furniture according to claim 3, where the work platform features a laptop docking station that allows a user to connect his or her laptop to other components of the work platform.
17. An article of furniture according to claim 3, where the viewing monitor is tilt adjustable.
18. An article of furniture according to claim 3, where adjustment of the work platform is accomplished by at least one vertically oriented screw that is attached to at least one bevel gear.
19. An article of furniture according to claim 3, wherein adjustment of the work platform and monitor are accomplished by at least one pneumatic cylinder.
20. An article of furniture according to claim 3, wherein said adjustment is accomplished by at least one vertically oriented screw that is powered by an electric motor.
21. An article of furniture according to claim 3, wherein one or more substantially horizontal desk surfaces are attached to any of the supports disclosed herein.
22. An article of furniture according to claim 3, wherein one or more computer displays are attached to either a second vertical support or the third vertical support.
23. An article of furniture according to claim 3, further comprising a treadmill associated with the exercise platform and treadmill struts or stabilizers operably connected to the treadmill that dissipate undesired transferred movement by a user of treadmill.
24. An article of furniture according to claim 3, wherein the support structure includes at least one vertical support member, and wherein struts or stabilizers or deployable struts or stabilizers are connected to any vertical support member.
25. An article of furniture according to claim 24, wherein the means of connection to or between any of the vertical support members employ any material known to absorb an impulsive force, vibratory motion, or oscillatory motion.
26. An article of furniture according to claim 3, wherein a shroud is employed to obscure at least one side of the user's lower body.
27. An article of furniture according to claim 3, including a treadmill associated with the exercise platform and wherein the treadmill features a padded or otherwise modified track that is designed to dampen the noise of foot impact thereon as the treadmill is used.
28. An article of furniture according to claim 3, wherein the exercise platform comprises a treadmill and supports that benefit the stabilization of the work platform more than they benefit the stabilization of the treadmill itself; where said treadmill features structures or supports that are exclusively intended to stabilize a part of the work platform or its vertical support.
29. An article of furniture according to claim 3, wherein the work platform includes a desk surface that is foldable approximately 90 degrees from a substantially horizontal position to a substantially vertical position.
30. An article of furniture according to claim 3, including a fixed on pad or cushion located on the desk surface that is useful for both absorbing accidental user collision against desk edges and increasing stability of a users arms and or wrists by absorbing transferred motion.
31. An article of furniture according to claim 3, including one or more ramps that allow a user to easily roll a chair onto a deck of a treadmill.
32. An ergonomic, space-saving treadmill workstation comprising: a base, at least one hollow member extending as a vertical support from said base, which hollow member can substantially conceal wire that may be related or unrelated to the treadmill's functions; and one or more substantially horizontal desk surfaces supported by at least one of the said vertical supports.
33. An article of furniture according to claim 32, wherein the weight of the second support may also include a third support that is connected to the second vertical support through connection means permitting vertical adjustment of the third vertical support relative to the first and the second vertical supports.
34. An article of furniture according to claim 1, wherein:
- the work platform is attached to the support structure by means of an adjustable arm; and
- the viewing monitor is attached to the support structure by means of an adjustable arm.
Filed: Jul 14, 2011
Publication Date: Apr 12, 2012
Inventor: Joshua P. Crafton
Application Number: 13/182,845
International Classification: A63B 24/00 (20060101);