Exercise Device for Use as a Walking Stick Having an Ergonomically Angled Handle
An ergonomic walking stick of the present invention is particularly useful during therapeutic exercise involving walking. The ergonomic walking stick of the present invention has an ergonomically angled handle that is configured such that said angled handle section is offset from the longitudinal axis of the elongated shaft and that allows for a more comfortable wrist angle through the entire walking stride. In one exemplary embodiment, the ergonomically angled handle is angled with respect to the handle support section and is further canted in relation to the plane defined by the vertical axis of the shaft and the horizontal axis of the handle support section.
This application is a continuation-in-part of and claims priority to U.S. patent application Ser. No. 14/934,695, filed on Nov. 6, 2015, which is a non-provisional application that claimed priority to U.S. Provisional Patent Application No. 62/108,258, filed on Jan. 27, 2015. The entire content of each of the foregoing applications is incorporated by reference herein.
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENTNot Applicable
BACKGROUND OF THE INVENTION1. Field of Invention
The invention relates to an exercise device. More particularly, it relates to an ergonomic walking stick having an ergonomically angled handle for use as an ergonomically adapted walking stick that allows for a more natural wrist break when being used by a user.
2. Description of the Related Art
In the exercise arts, it is known that walking provides numerous benefits including muscle tone, endurance, and posture. Additionally, as a cardio, aerobic exercise, walking provides benefits in the areas of heart health, cholesterol management, blood pressure management, stress relief, management of depression and/or anxiety related symptoms, and contributes to an overall sense of well-being. And, it is also known, especially in the areas of walking generally, Nordic walking, hiking, and trekking, that the use of walking sticks enhances the benefits of the workout by involving the muscles in the shoulders, arms, and back, particularly the lower back. Various known patents disclose various forms of walking sticks. For instance, U.S. Pat. No. 5,443,435, issued to Wilkinson on Aug. 22, 1995, discloses an exercise device in the form of a walking stick having a weight attached to the shaft. U.S. Pat. No. 5,490,825, issued to Wilkinson on Feb. 13, 1996, discloses an exercise device in the form of a walking stick having an offset either at the top or the bottom. U.S. Pat. No. 5,586,957, issued to Wilkinson on Dec. 24, 1996, also discloses an exercise device in the form of a walking stick which can have a weight attached to the staff. U.S. Pat. No. 5,628,713, issued to Wilkinson on May 13, 1997, also discloses an exercise device in the form of a walking stick. Each of the Wilkinson exercise devices are adjustable in length. Further, U.S. Pat. No. 5,778,914, issued to Trani on Jul. 14, 1998, discloses a portable, telescopic, weighted walking pole. U.S. Pat. No. 5,566,700, issued to Brown on Oct. 22, 1996, discloses a walking stick for aiding support of an individual in which the device includes a stanchion assembly having a handgrip assembly secured to an upper end and a stanchion assembly at the lower end for rollingly engaging a ground surface during walking. U.S. Pat. No. 7,222,633, issued to Werner, III on May 29, 2006; and U.S. Pat. No. 7,451,775, issued to Werner, III on Nov. 18, 2008, each disclose ergonomic support staff apparatuses having a handle member that protrudes laterally outward from the support member to define an angled grip portion. And, finally, U.S. Pat. No. 8,500,609, issued to Williams on Aug. 6, 2013, discloses an attachable weight for a walking pole.
Additionally, in U.S. Pat. No. 5,193,567, issued on Mar. 16, 1993, Razny discloses a mobility enhancing crutch bent so as to form a forearm and hand support assembly. Razny teaches that with his device, the weight of the user is applied directly down onto the vertical shaft of the Razny device. Similarly, in U.S. Pat. No. 5,495,867, issued on Mar. 5, 1996, to Block, Block discloses a dual handled cane, having upper and lower handles, in which both handles are geometrically centered over the load-bearing shaft of the cane. As a result of the fact that the load bearing handles are positioned directly over the shaft of these devices, the devices are limited in their range of safe planting angles during the gait cycle due to this design.
What is missing from the art is an ergonomic walking stick having an ergonomically angled handle that is both inclined with respect to the walking stick and is canted toward the user so as to provide a more natural break of the wrist throughout the full motion of the walking stride. Also missing from the art is such an ergonomic walking stick having a bi-directional curvature that allows the handle to be positioned off the center line of the elongated shaft so as to have a greater base of stability. Further, also missing from the art is an ergonomically angled handle that is adapted to be retrofitted to state of the art walking poles.
BRIEF SUMMARY OF THE INVENTIONThe ergonomic walking stick of the present invention is particularly useful during exercise involving walking, and is especially useful for walking, as a therapeutic exercise, to assist with alleviating chronic lower back pain. The ergonomic walking stick of the present invention has an ergonomically angled handle that allows for a more comfortable, and more natural, wrist angle through the entire walking stride. In one exemplary embodiment, the handle of the ergonomic walking stick is both inclined with respect to the vertical axis of the walking stick and is canted towards the user thereby allowing a more natural wrist break throughout the full range of motion. This canted handle results in left and right walking sticks that can be utilized singly, or in matched pairs.
The above-mentioned features of the invention will become more clearly understood from the following detailed description of the invention read together with the drawings in which:
The ergonomic walking stick of the present invention is particularly useful during exercise involving walking, especially walking as a therapeutic exercise to assist in alleviating chronic lower back pain. The ergonomic walking stick of the present invention has an ergonomically angled handle that allows for a more comfortable wrist angle through the entire walking stride. Further, the ergonomic walking stick of the present invention has a bi-directional curved configuration that results in the handle being positioned off the center line of the elongated shaft. In this regard, the ergonomically angled handle is angled with respect to the horizontal axis of the handle support section; and, the ergonomically angled handle is further canted towards the user such that it is angled with respect to the plane defined by the vertical axis of the walking stick and the horizontal axis of the handle support section.
Connected to the handle support section 50 is ergonomic handle section 60. In an exemplary embodiment, ergonomic walking stick 10 includes a proximal bi-directional curvature of the handle section 60 of the ergonomic walking stick 10 with respect to the elongated shaft 15. Ergonomic handle section 60 is, in an exemplary embodiment, an elongated body having a longitudinal axis 65. The longitudinal axis 65 of ergonomic handle section 60 lies in a different plane than the plane defined between the longitudinal axis 55 of handle support section 50 and longitudinal axis 35 of elongated shaft 15, which is represented by surface 80 in
As stated above, and as illustrated in
The differences between the ergonomic walking stick 10 of the present invention and state of the art walking sticks, canes, or crutches in which the handles are geometrically centered over the load-bearing shaft of the cane are best illustrated in reference to
Thus, comparing
In a similar fashion in the frontal plane, the unique bi-directional curvature at the handle level of ergonomic walking stick 10 also creates a greater medial-lateral moment arm, df for the vertical reaction force, Fz, in the frontal plane when it is planted on the ground, (
In a similar fashion, for the frontal plane, the medial-lateral length, b, of the BOS for the ergonomic walking stick 10 of the present invention is greater than the medial-lateral length b′ than that for a state-of-the-art cane or crutch as it needs to be held in a medial-lateral position closer than that of the ergonomic walking stick 10 and would create a smaller medial-lateral length of the BOS when compared to that of the ergonomic walking stick 10.
The unique design of ergonomic walking stick 10 offers greater flexibility in its handle positions in forward, lateral, or a combination of forward and lateral positions and therefore greater flexibility in maintaining the user's stability. The unique design of ergonomic walking stick 10, with the above described bi-directional curvature, provides a greater size and more stable inverted BOS at the handle level. The inverted and increased handle-level BOS increases the stable range of motion, (hereinafter “ROM”), at the handle level, compared to prior art crutches and canes. The greater proximal, i.e. handle level, stability is also attributed to the unique bi-directional moment arms created by the curved proximal part and the ergonomic handle section 60 of ergonomic walking stick 10, compared to the more traditional straight design of prior art crutches and canes.
The proximal bi-directional curvature of the handle section 60 of the ergonomic walking stick 10 of the present invention allows the handle section 60 to be positioned off the center line axis of the elongated shaft 15, which is another unique feature of ergonomic walking stick 10. This unique feature allows ergonomic walking stick 10 to be planted further away from the body, such that the handle section 60 has a sharper planting angle, with the supporting surface, at initial contact, β in
Because of the mechanism discussed above, traditional crutches and canes are limited in their range of safe planting angles during the gait cycle due to their straight design as illustrated in
In an exemplary embodiment, ergonomic walking stick 10 further includes padding 120 at the lower end 25 of shaft 15, padding 130 which covers the upper end 20 and handle support section 50, and gripping padding 140 on handle section 60. Padding 120, padding 130, and gripping padding 140 could be closed or open cell foam material. Further, while the ergonomic walking stick 10 illustrated herein has been, in an exemplary embodiment, constructed of tube stock that has been bent on a tube bending machine, such that the elongated shaft section 15, the handle support section 50, and ergonomically angled handle 60 are integral, it will be recognized by those skilled in the art that the individual sections described herein could be cut from separate pieces of stock and welded together at sharp angles or with filleted curves of any selected radius; and it will be further recognized that the various components, such as, particularly, the handle support member and the angled handle member could be injection molded. It will also be appreciated that the individual sections described herein could be connected to one another by any means known or later to be developed.
For example, in a further exemplary embodiment, the various sections could be modular. In this regard, referring to
In an additional exemplary embodiment, illustrated in
It has been found that use of the ergonomic walking stick 10, constructed in accordance with the present invention, has particular benefits for certain people who suffer from certain types of chronic back pain. In this regard, in use, as the person plants the ergonomic walking stick, strides past, and pushes against the ergonomic walking stick, (during which motion the ergonomically shaped handle section allows for an decreased angle of attack of the wrist, and therefore greater comfort during use), then swings the ergonomic walking stick forward towards the next forward impact point, the action of walking past the ergonomic walking stick and swinging the ergonomic walking stick forward, stretches and energizes certain of the muscles in the back, especially the lower back, abdomen, chest, arms, and hips. In this regard, bilateral use of ergonomic walking sticks 10, i.e. use of a pair of ergonomic walking sticks 10, of the present invention requires increased requirement of upper extremity and low back strength, especially when the ergonomic walking sticks 10 are held in a farther out position. Because of the increased moment arms, ds and df, in both sagittal and frontal planes, see
It will be appreciated that in each of the embodiments illustrated and described herein, the handle sections could be manufactured of any of a select group of rigid materials commonly used in this art. Further, the handle sections could be smooth, textured for grip and/or tactile response, or could be covered in a closed-cell foam material. While the present invention has been illustrated by description of several embodiments and while the illustrative embodiments have been described in detail, it is not the intention of the applicant to restrict or in any way limit the scope of the appended claims to such detail. Additional modifications will readily appear to those skilled in the art. The invention in its broader aspects is therefore not limited to the specific details, representative apparatus and methods, and illustrative examples shown and described. Accordingly, departures may be made from such details without departing from the spirit or scope of applicant's general inventive concept.
Claims
1. An ergonomic walking stick having an ergonomically angled handle for use during walking, said ergonomic walking stick comprising:
- an elongated shaft section having an upper end, a lower end, and a longitudinal axis;
- a handle support section connected to said upper end of said elongated shaft section, said handle support section having a longitudinal axis, said longitudinal axis of said handle support section defining an angle with said longitudinal axis of said elongated shaft section, and wherein said longitudinal axis of said handle support section and said longitudinal axis of said elongated shaft section define a first plane; and
- an ergonomically angled handle section connected to said handle support section at a selected angle and configured such that said angled handle section is offset from said longitudinal axis of said elongated shaft, wherein said ergonomically angled handle section has a longitudinal axis, wherein said longitudinal axis of said ergonomically angled handle section is offset from said first plane such that said ergonomically angled handle section is offset from said longitudinal axis of said elongated shaft.
2. The ergonomic walking stick of claim 1 wherein said selected longitudinal axis of said handle support section is in an orthogonal relationship with said longitudinal axis of said elongated shaft section.
3. The ergonomic walking stick of claim 1 wherein said selected angle between said longitudinal axis of said handle section and said longitudinal axis of said elongated shaft section is in a range of approximately 15° to approximately 75°.
4. The ergonomic walking stick of claim 1 wherein said longitudinal axis of said ergonomically angled handle section and said longitudinal axis of said handle support section define an angle in a range of approximately 20° to approximately 70°.
5. The ergonomic walking stick of claim 1 wherein said longitudinal axis of said handle support section and said longitudinal axis of said elongated shaft section define a first plane, and said longitudinal axis of said handle section and said longitudinal axis of said handle support section define a second plane, and further wherein said first plane and said second plane intersect.
6. The ergonomic walking stick of claim 1 wherein said longitudinal axis of said ergonomically angled handle section forms an acute angle with a level support surface during use.
7. The ergonomic walking stick of claim 1 wherein said shaft section, said handle support section, and said ergonomically angled handle section are integrally formed.
8. The ergonomic walking stick of claim 1 wherein said lower end of said elongated shaft is adapted for engaging a walking surface.
9. The ergonomic walking stick of claim 1 wherein said handle section includes a bi-directional curvature with respect to said elongated shaft.
10. An ergonomic walking stick for use during walking, said ergonomic walking stick comprising:
- an elongated body section defined by an elongated shaft section having an upper end, a lower end adapted for engaging a walking surface, and a longitudinal axis;
- a handle support section connected to said upper end of said elongated shaft section, said handle support section having a longitudinal axis, said longitudinal axis of said handle support section defining an angle with said longitudinal axis of said elongated shaft section, and wherein said longitudinal axis of said handle support section and said longitudinal axis of said elongated shaft section define a first plane; and
- an ergonomically angled handle section connected to said handle support section at a selected angle and configured such that said angled handle section is offset from said longitudinal axis of said elongated shaft, wherein said ergonomically angled handle section has a longitudinal axis, wherein said longitudinal axis of said ergonomically angled handle section is offset from said first plane, wherein said longitudinal axis of said ergonomically angled handle and said longitudinal axis of said elongated shaft section define a selected angle in a range of approximately 15° to approximately 75°.
11. The ergonomic walking stick of claim 10 wherein said selected longitudinal axis of said handle support section is in an orthogonal relationship with said longitudinal axis of said elongated shaft section.
12. The ergonomic walking stick of claim 10 wherein said longitudinal axis of said ergonomically angled handle section and said longitudinal axis of said handle support section define an angle in a range of approximately 20° to approximately 70°.
13. The ergonomic walking stick of claim 10 wherein said longitudinal axis of said handle support section and said longitudinal axis of said elongated shaft section define a first plane, and said longitudinal axis of said handle section and said longitudinal axis of said handle support section define a second plane, and further wherein said first plane and said second plane intersect.
14. The ergonomic walking stick of claim 10 wherein said longitudinal axis of said ergonomically angled handle section forms an acute angle with a level support surface during use.
15. The ergonomic walking stick of claim 10 wherein said handle section includes a bi-directional curvature with respect to said elongated shaft.
16. An ergonomic walking stick for use during walking, said ergonomic walking stick comprising:
- an elongated body section defined by an elongated shaft section having an upper end, a lower end adapted for engaging a walking surface, and a longitudinal axis;
- a handle support section connected to said upper end of said elongated shaft section wherein said handle section includes a bi-directional curvature with respect to said elongated shaft, said handle support section having a longitudinal axis, said longitudinal axis of said handle support section defining an angle with said longitudinal axis of said elongated shaft section, and wherein said longitudinal axis of said handle support section and said longitudinal axis of said elongated shaft section define a first plane; and
- an ergonomically angled handle section connected to said handle support section at a selected angle and configured such that said angled handle section is offset from said longitudinal axis of said elongated shaft, wherein said ergonomically angled handle section has a longitudinal axis, offset from said first plane in relation to said longitudinal axis of said elongated shaft section to define a selected angle, wherein said longitudinal axis of said ergonomically angled handle section and said longitudinal axis of said handle support section define an angle in a range of approximately 20° to approximately 70°.
17. The ergonomic walking stick of claim 16 wherein said selected longitudinal axis of said handle support section is in an orthogonal relationship with said longitudinal axis of said elongated shaft section.
18. The ergonomic walking stick of claim 16 wherein said selected angle between said longitudinal axis of said handle section and said longitudinal axis of said elongated shaft section is in a range of approximately 15° to approximately 75°.
19. The ergonomic walking stick of claim 16 wherein said longitudinal axis of said handle support section and said longitudinal axis of said elongated shaft section define a first plane, and said longitudinal axis of said handle section and said longitudinal axis of said handle support section define a second plane, and further wherein said first plane and said second plane intersect.
20. The ergonomic walking stick of claim 16 wherein said longitudinal axis of said ergonomically angled handle section forms an acute angle with a level support surface during use.
Type: Application
Filed: Jul 12, 2016
Publication Date: Nov 3, 2016
Inventors: Timothy N. Byrd (Townsend, TN), Teresa C. BYRD (Townsend, TN)
Application Number: 15/208,059