Wrap Around Walking Aid

Abstract

A wrap around walking aid is configured to assist a human user in walking. The wrap around walking aid comprising has a first rear lower frame and a first front lower frame mechanically coupled to a first upper frame. A back rest is connected to the first rear lower frame. A second rear lower frame and a second front lower frame are mechanically coupled to a second upper frame. The second rear lower frame is further mechanically coupled to the back rest. At least one first fixed front wheel is mechanically coupled to both front lower frames. At least one first castor rear wheel is mechanically coupled to both rear lower frames. The wheels enable a turn radius while the human user is walking forward.

Description

TECHNICAL FIELD

The present disclosure relates to walking aids that assist those with mobility difficulties, and, more particularly, upright walking aids that wrap around a user's body.

BACKGROUND

Prior to embodiments of the disclosed invention, conventional walkers caused people to have a bent forward low back and neck in extension posture. This caused neck and back pain. They also had break handles that could cause the wrist to be bent in an abnormal way that can could wrist and elbow pain. Conventional walkers also inhibited a normal gait pattern. Embodiments of the disclosed invention solve these problems. Conventional walkers' forward leaning posture has been shown to contribute to falls. With a more upright posture along with the forearm support of this embodiment this should reduce this problem.

SUMMARY

A wrap around walking aid is configured to assist a human user in walking. The wrap around walking aid can include a first rear lower frame and a first front lower frame mechanically coupled to a first upper frame. At least one first fixed front wheel can be mechanically coupled to the first front lower frame. At least one first castor rear wheel can be mechanically coupled to the first rear lower frame. A back rest can be connected to the first rear lower frame. A second rear lower frame and a second front lower frame can be mechanically coupled to a second upper frame. The second rear lower frame can be further mechanically coupled to the back rest. At least one second fixed front wheel can be mechanically coupled to the second front lower frame. At least one second castor rear wheel can be mechanically coupled to the second rear lower frame. The at least one first castor rear wheel, the at least one second castor rear wheel, the at least one first fixed front wheel and the at least one second fixed front wheel can enable a turn radius while the human user is walking forward.

In some embodiments, a first folding point can be arranged between the first front lower frame and the first rear lower frame. The first folding point can be configured to permit the first front lower frame to fold upon the first rear lower frame. A second folding point can be arranged between the second front lower frame and the second rear lower frame. The second folding point can be configured to permit the second front lower frame to fold upon the second rear lower frame.

In some embodiments, at least one first strut can be connected to the first rear lower frame and the first front lower frame. The at least one first strut can be configured to limit the first front lower frame moving away from the first rear lower frame. At least one second strut can be connected to the second rear lower frame and the second front lower frame. The at least one second strut can be configured to limit the second front lower frame moving away from the second rear lower frame.

In some embodiments, a seat rest can be mechanically coupled to the first front lower frame and the second front lower frame. A seat pivot can be attached to a seat and the back rest. Rotating the seat from the seat pivot can cause the seat to rest upon the seat rest.

In some embodiments, the first upper frame can further comprise a first telescoping segment, configured to extend from within the first rear lower frame and further configured to be tightened into place by a first height adjustment. The first telescoping segment can be on a first telescoping axis. A first forearm support segment can be joined to the first telescoping segment. The first forearm support segment can extend on a first forearm axis. Measured from the first telescoping segment, the first forearm support segment can be arranged at a first obtuse angle that is greater than 90 degrees. A first handle segment can be joined to the first forearm support segment.

In some embodiments, a first handle can be mechanically coupled to the first handle segment. A first hand brake can be mechanically coupled to the first handle. A first brake cable can be connected to the first hand brake and the at least one first fixed front wheel. Squeezing the first hand brake can engage the first brake cable to stop motion of the at least one first fixed front wheel. In some embodiments, a first forearm rest can be mechanically coupled to the first forearm support segment.

In some embodiments, the second upper frame can further comprise a second telescoping segment, configured to extend from within the second rear lower frame and further configured to be tightened into place by a second height adjustment. The second telescoping segment can be on a second telescoping axis. A second forearm support segment can be joined to the second telescoping segment. The second forearm support segment can extend on a second forearm axis. Measured from the second telescoping segment, the second forearm support segment can be arranged at a second obtuse angle that is greater than 90 degrees. A second handle segment can be joined to the second forearm support segment.

In some embodiments, a second handle can be mechanically coupled to the second handle segment. A second hand brake can be mechanically coupled to the second handle. A second brake cable can be connected to the second hand brake and the at least one second fixed front wheel. Squeezing the second hand brake can engage the second brake cable to stop motion of the at least one second fixed front wheel. In some embodiments, a second forearm rest can be mechanically coupled to the second forearm support segment.

Aspects of the present disclosure may involve a wrap around walking aid that assists a user in walking in an upright position. The wrap around walking aid may include: a rear lower frame structure including first and second rear lower frame members; a front lower frame structure including first and second front lower frame members, the first front lower frame member coupled to the first rear lower frame member, the second front lower frame member coupled to the second rear lower frame member; a first front wheel coupled to the first front lower frame member; a second front wheel coupled to the second front lower frame member; a first rear wheel coupled to the first rear lower frame member; a second rear wheel coupled to the second rear lower frame member; an upper frame structure including a first upper frame member, a second upper frame member, a first forearm support coupled to the first upper frame member, a second forearm support coupled to the second upper frame member, a first handle joined with the first upper frame member, and a second handle joined with the second upper frame member, the first upper frame member being adjustably coupled to the first rear lower frame member along a first length of the first upper frame member, the second upper frame member being adjustably coupled to the second rear lower frame member along a second length of the second upper frame member; and a back rest coupled to the rear lower frame structure and extending between the first and second rear lower frame members.

In certain instances, the wrap around walking aid may further include a seat operably coupled to and pivotal relative to the rear lower frame structure so as to be pivotally positioned in a seated position or a stowed position.

In certain instances, the wrap around walking aid may further include a seat rest coupled between the first and second front lower frame members, the seat rest supporting the seat when the seat may be in the seated position.

In certain instances, the upper frame structure further includes first and second brakes, the first brake joined with the first upper frame member near the first handle, the second brake joined with the second upper frame member near the second handle.

In certain instances, the first upper frame member may be adjustably coupled to the first rear lower frame member along the first length of the first upper frame member via a first telescoping connection, the second upper frame member may be adjustably coupled to the second rear lower frame member along the second length of the second upper frame member via a second telescoping connection.

In certain instances, the wrap around walking aid may further include first and second folding joints, the first folding joint joining the first front lower frame member and the first rear lower frame member, the second folding joint joining the second front lower frame member and the second rear lower frame member.

In certain instances, the wrap around walking aid may further include first and second collapsible struts, the first collapsible strut coupling the first front lower frame member and the first rear lower frame member, the second collapsible strut coupling the second front lower frame member and the second rear lower frame member.

Aspects of the present disclosure may involve a wrap around walking aid that assists a user in walking in an upright position. The wrap around walking aid may include: a rear lower frame structure including first and second rear lower frame members; a front lower frame structure including first and second front lower frame members, the first front lower frame member coupled to the first rear lower frame member, the second front lower frame member coupled to the second rear lower frame member; a first front wheel coupled to the first front lower frame member; a second front wheel coupled to the second front lower frame member; a first rear wheel coupled to the first rear lower frame member; a second rear wheel coupled to the second rear lower frame member; an upper frame structure including a first upper frame member, a second upper frame member, a first forearm support coupled to the first upper frame member, a second forearm support coupled to the second upper frame member, a first handle joined with the first upper frame member, and a second handle joined with the second upper frame member, the first upper frame member coupled to the first rear lower frame member, the second upper frame member being adjustably coupled to the second rear lower frame member; a back rest coupled to the rear lower frame structure and extending between the first and second rear lower frame members; and a seat operably coupled to and pivotal relative to the rear lower frame structure so as to be pivotally positioned in a seated position or a stowed position.

In certain instances, the first upper frame member may be adjustable relative to the first rear lower frame member, and the second upper frame member may be adjustable relative to the second rear lower frame member so as to increase or decrease a distance between the upper frame structure and the seat.

In certain instances, the wrap around walking aid may further include a seat rest coupled between the first and second front lower frame members, the seat rest supporting the seat when the seat may be in the seated position.

In certain instances, the upper frame structure further includes first and second brakes, the first brake joined with the first upper frame member near the first handle, the second brake joined with the second upper frame member near the second handle.

In certain instances, the first and second front wheels may be fixed wheels, and the first and second rear wheels may be castor wheels.

In certain instances, the wrap around walking aid may further include first and second folding joints, the first folding joint joining the first front lower frame member and the first rear lower frame member, the second folding joint joining the second front lower frame member and the second rear lower frame member.

In certain instances, the wrap around walking aid may further include first and second collapsible struts, the first collapsible strut coupling the first front lower frame member and the first rear lower frame member, the second collapsible strut coupling the second front lower frame member and the second rear lower frame member.

Aspects of the present disclosure may involve a wrap around walking aid that assists a user in walking in an upright position. The wrap around walking aid may include: a rear lower frame structure including first and second rear lower frame members; a front lower frame structure including a first front lower frame member, a second front lower frame member, and a seat rest coupled to and extending between the first and second front lower frame members, the first front lower frame member coupled to the first rear lower frame member at a first folding joint, the second front lower frame member coupled to the second rear lower frame member at a second folding joint; a first front wheel coupled to the first front lower frame member; a second front wheel coupled to the second front lower frame member; a first rear wheel coupled to the first rear lower frame member; a second rear wheel coupled to the second rear lower frame member; and an upper frame structure including a first upper frame member, a second upper frame member, a first forearm support coupled to the first upper frame member, a second forearm support coupled to the second upper frame member, a first handle joined with the first upper frame member, and a second handle joined with the second upper frame member, the first upper frame member coupled to the first rear lower frame member, the second upper frame member being adjustably coupled to the second rear lower frame member, wherein the rear lower frame structure and the front lower frame structure may be foldable relative to each other about the first and second folding joints such that the first and second front wheels may be positioned closer to the first and second rear wheels in a folded state than when the rear lower frame structure and the front lower frame structure may be in an unfolded state.

In certain instances, the wrap around walking aid may further include a back rest coupled to the rear lower frame structure and extending between the first and second rear lower frame members.

In certain instances, the wrap around walking aid may further include a seat operably coupled to and pivotal relative to the rear lower frame structure so as to be pivotally positioned in a seated position or a stowed position, the seat rest supporting the seat when the seat may be in the seated position.

In certain instances, the wrap around walking aid may further include first and second collapsible struts, the first collapsible strut coupling the first front lower frame member and the first rear lower frame member, the second collapsible strut coupling the second front lower frame member and the second rear lower frame member.

In certain instances, the first upper frame member may be adjustable relative to the first rear lower frame member, and the second upper frame member may be adjustable relative to the second rear lower frame member so as to increase or decrease a distance between the upper frame structure and the seat.

In certain instances, the first and second front wheels may be fixed wheels, and the first and second rear wheels may be castor wheels.

Aspects of the present disclosure may involve a wrap around walking aid that assists a user in walking in an upright position. The wrap around walking aid may include: a rear lower frame structure including first and second rear lower frame members; a front lower frame structure including first and second front lower frame members, the first front lower frame member coupled to the first rear lower frame member, the second front lower frame member coupled to the second rear lower frame member; a first front wheel coupled to the first front lower frame member; a second front wheel coupled to the second front lower frame member; a first rear wheel coupled to the first rear lower frame member; a second rear wheel coupled to the second rear lower frame member; an upper frame structure including a first upper frame member, a second upper frame member, a first forearm support coupled to the first upper frame member, a second forearm support coupled to the second upper frame member, a first handle joined with the first upper frame member, and a second handle joined with the second upper frame member, the first upper frame member being adjustably coupled to the first rear lower frame member along a first length of the first upper frame member, the second upper frame member being adjustably coupled to the second rear lower frame member along a second length of the second upper frame member, the first upper frame member being rotatable relative to the first rear lower frame member so as to be positionable in a first plurality of orientations relative to the first rear lower frame member, the second upper frame member being rotatable relative to the second rear lower frame member so as to be positionable in a second plurality of orientations relative to the second rear lower frame member; and a back rest coupled to the rear lower frame structure and extending between the first and second rear lower frame members.

In certain instances, the first plurality of orientations includes a first forward orientation where the back rest is configured to be positioned behind the legs of the user, and a first reverse orientation where the back rest is configured to be positioned in front of the legs of the user, where the first upper frame member is oriented generally one hundred eighty degrees between the first forward orientation and the first reverse orientation.

In certain instances, the second plurality of orientations includes a second forward orientation where the back rest is configured to be positioned behind the legs of the user, and a second reverse orientation where the back rest is configured to be positioned in front of the legs of the user, where the second upper frame member is oriented generally one hundred eighty degrees between the second forward orientation and the second reverse orientation.

BRIEF DESCRIPTION OF THE FIGURES

The detailed description of some embodiments of the invention is made below with reference to the accompanying figures, wherein like numerals represent corresponding parts of the figures.

FIG. 1 is a side elevation view of an embodiment of the invention in use.

FIG. 2 is a side elevation view showing an embodiment of the invention used in a seating mode.

FIG. 3 is a top plan view of an embodiment of the invention.

FIG. 4 is a top plan view of an embodiment of the invention with a user.

FIG. 5 is a side elevation view showing an embodiment of the invention in a storage mode.

FIG. 6 is a front isometric view of a walking aid.

FIG. 7 is a front exploded-isometric view of the walking aid of FIG. 6.

FIG. 8 is a side view of the walking aid of FIG. 6, where an opposite side view is the same or substantially similar.

FIG. 9 is a top view of the walking aid of FIG. 6.

FIG. 10 is a bottom view of the walking aid of FIG. 6.

FIG. 11 is a front isometric view of the walking aid of FIG. 6 with the seat pivoted upwards and the upper frame structure rotated one hundred eighty degrees from a forward orientation to a rearward orientation.

FIG. 12 is a front isometric view of the walking aid of FIG. 6 in a folded or stowed position.

DETAILED DESCRIPTION OF CERTAIN EMBODIMENTS

By way of example, and referring to FIG. 1, one embodiment of wrap-around walking aid 10 further comprises first rear lower frame 11A and first front lower frame 12A mechanically coupled to first upper frame 13A. First front lower frame 12A is further mechanically coupled to at least one first fixed front wheel 14A. First rear lower frame 11A is further mechanically coupled to at least one first castor rear wheel 16A. First front lower frame 12A is joined to first rear lower frame 11A at first folding point 18 which is configured to permit first front lower frame 12A to fold upon first rear lower frame 11A as shown in FIG. 5. First rear lower frame 11A is further connected to first front lower frame 12A with at least one first strut 20A. The at least one first strut 20A limits the distance the first front lower frame 12A can move away from first rear lower frame 11A.

First front lower frame 12A is mechanically coupled to seat rest 22 which partially extends between first front lower frame 12A and first rear lower frame 11A. Seat 24 and back rest 26 are attached to seat pivot 28. Back rest 26 is connected to first rear lower frame 11A.

First upper frame 13A has three segments, a first telescoping segment 15A that extends from first rear lower frame 11A and can be tightened into place by first height adjustment 30A. In some embodiments, this could be a quick release height adjustment. The first telescoping segment 15A bends into the first forearm support segment 17A. The first forearm support segment 17A extends on a first forearm axis Ax1 whereas the first telescoping segment 15A is on a first telescoping axis Ay1. Measured from the first telescoping segment 15A the first forearm segment 17A is arranged at a first obtuse angle θ1 that is greater than 90 degrees. First obtuse angle θ1 brings the torso of a human user back slightly to create a more upright posture reducing neck and back pain.

The first forearm support segment is mechanically coupled to first forearm rest 32A. The first forearm support segment bends into a first handle segment. The first handle segment is mechanically coupled to first handle 34A. First handle 34A is further mechanically coupled to first hand brake 36A. First hand brake 36A can be squeezed toward first handle 34A to engage first brake cable 38A. First brake cable 38A is mechanically coupled to at least one first fixed front wheel 14A.

FIG. 3 illustrates that some parts can exist in multiple quantities. For instance, one embodiment of wrap-around walking aid 10 further comprises second rear lower frame 11B and second front lower frame 12B mechanically coupled to second upper frame 13B. Second front lower frame 12B is further mechanically coupled to at least one second fixed front wheel 14B. Second rear lower frame 11B is further mechanically coupled to at least one second castor rear wheel 16B. Second front lower frame 12B is joined to second rear lower frame 11B at second folding point 18B which is configured to permit second front lower frame 12B to fold upon second rear lower frame 11B as shown in FIG. 5. Second rear lower frame 11B is further connected to second front lower frame 12B with at least one second strut 20B. The at least one second struts 20B limits the distance the second front lower frame 12B can move away from second rear lower frame 11B.

Second front lower frame 12B is mechanically coupled to seat rest 22 which partially extends between second front lower frame 12B and second rear lower frame 11B. Seat 24 and back rest 26 are attached to seat pivot 28. Back rest 26 is connected to second rear lower frame 11B. Note that contrary to conventional walkers, as shown in FIG. 3 and FIG. 4, there is no support member forward of seat 24 when deployed. This removes a common problem in conventional walkers—the human user banging legs and knees on forward supports.

Second upper frame 13B has three segments, a second telescoping segment 15B that extends from second rear lower frame 11B and can be tightened into place by second height adjustment 30B. In some embodiments, this could be a quick release height adjustment. The second telescoping segment 15B bends into the second forearm support segment 17B. The second forearm support segment 17B extends on a second forearm axis whereas the second telescoping segment 15B is on a second telescoping axis. Measured from the second telescoping segment the second forearm segment is arranged at a second obtuse angle that is greater than 90 degrees. The second obtuse angle brings the torso of a human user back slightly to create a more upright posture reducing neck and back pain.

The second forearm support segment is mechanically coupled to second forearm rest 32B. The second forearm support segment bends into a second handle segment. The second handle segment is mechanically coupled to second handle 34B. Second handle 34B is further mechanically coupled to second hand brake 36B. Second hand brake 36B can be squeezed toward second handle 34B to engage second brake cable 38B. Second brake cable 38B is mechanically coupled to at least one second fixed front wheel 14B.

Further, as shown in FIG. 4, wrap-around walking aid 10 can be scaled to accommodate any size human user. The human user's nose is approximately in the position of center of rotation 42 of at least one first castor rear wheel 16A and at least one second castor rear wheel 16B creating turn radius 40. This enables a user to easily turn wrap-around walking aid 10 while moving forward. Turn radius 40 is very tight, in some cases as wide as wrap-around walking aid 10.

Reference is made to FIGS. 6-10, which depict another embodiment of a walking aid 100. In particular, FIGS. 6-10 depict, respectively, an isometric front view of the walking aid 100, a front isometric-exploded view of the walking aid 100, a first side view of the walking aid 100, a top view of the walking aid 100, and a bottom view of the walking aid 100. The walking aid 100 may be used in the same manner as the previous described walking aid and may include the same or different components. The walking aid 100 may be considered a wrap around walking aid because the structure of the walking aid 100 wraps around the back of the user when the upper frame structure is oriented in a forward facing position. The walking aid 100 may also wrap around the front of the user when the upper frame structure is oriented in a rearward, or opposite facing, position. In the forward facing position, as shown FIGS. 1 and 6, among others, the area in front of the user's body is open or clear from obstruction by the structure of the walking aid 100. Conversely, in the rearward, or opposite facing, position, as seen in FIG. 11, the area behind the user's body is open or clear from obstruction by the structure of the walking aid 100. In the forward facing position, the user may walk and then sit without turning their body relative to the walking aid 100. In the rearward facing position, the user may walk and then turn one hundred eighty degrees before sitting on the seat of the walking aid 100.

As seen in FIG. 6, which shows the walking aid 100 with the seat in a lowered, down, or seated position, the walking aid 100 includes a rear lower frame structure 102, a front lower frame structure 104, a seat 106, and an upper frame structure 108. The rear lower frame structure 102 may include a first rear lower frame member 110, a second rear lower frame member 112, and a rear seat support member 114 coupled between the first and second lower frame members 110, 112. A lower end 116 of the first rear lower frame member 110 is rotatably coupled with a first rear wheel 118, which may be a wheel that freely rotates (e.g., cator wheel), as previously described herein. A lower end 120 of the second rear lower frame member 112 is rotatably coupled with a second rear wheel 122, which may be a wheel that freely rotates (e.g., castor wheel), as previously described herein. An upper end 124 of the first rear lower frame member 110 includes a first tubular member 126 including vertically spaced through-holes 128 therein. The first tubular member 126 is vertically oriented with respect to the floor surface the walking aid 100 is used on, and includes a longitudinal axis extending through a lumen of the member 126, where the longitudinal axis is generally perpendicular to the floor surface. A first linear section 150 of the first rear lower frame member 110 connects the lower end 116 and the upper end 124. An upper end 130 of the second rear lower frame member 112 includes a second tubular member 132 including vertically spaced through-holes 134 therein. The second tubular member 132 is vertically oriented with respect to the floor surface the walking aid 100 is used on, and includes a longitudinal axis extending through a lumen of the member 132, where the longitudinal axis is generally perpendicular to the floor surface. A second linear section 152 of the second rear lower frame member 112 connects the lower end 120 and the upper end 130.

The front lower frame structure 104 includes a first front lower frame member 136, a second front lower frame member 138, and a front seat support member 140 that is curved and that couples between the first and second front lower frame members 136, 138. When the seat 106 of the walking aid 100 is in the lowered position, a bottom surface of the seat 106 contacts the front seat support member 140 and prevents the seat 106 from rotating further. In this orientation (i.e., seat in lowered position), the seat 106 is generally level or parallel with the floor surface.

A lower end 142 of the first front lower frame member 136 is coupled with a first front wheel 144 that may be locked or fixed in a particular orientation. That is, the first front wheel 144 may rotate such that the walking aid 100 may be utilized to move forward, back, etc., but the first front wheel 144 may be fixed so as to not be rotatable about an axis perpendicular to the wheel's axis of rotation. A lock 146 may be positioned at the lower end 142 near the first front wheel 144 so as to lock the rotation of the first front wheel 144. An upper end 148 of the first front lower frame member 136 is pivotally coupled with a front section of a pair of first frame connection plates 154 at a joint 156, which may be a pin, rivet, or the like.

A lower end 158 of the second front lower frame member 138 is coupled with a second front wheel 160 that may be locked or fixed in a particular orientation. That is, the second front wheel 160 may rotate such that the walking aid 100 may be utilized to move forward, back, etc., but the second front wheel 160 may be fixed so as to not be rotatable about an axis perpendicular to the wheel's axis of rotation. A lock 162 may be positioned at the lower end 158 near the second front wheel 160 so as to lock the rotation of the second front wheel 160. An upper end 164 of the second front lower frame member 138 is pivotally coupled with a front section of a pair of second frame connection plates 166 at a joint 168, which may be a pin, rivet, or the like.

A first folding strut 170 connects the first rear lower frame member 110 and the first front lower frame member 136. The first folding strut 170 includes a front strut 172 coupled with a rear strut 174 about a joint 176. A second folding strut 178 connects the second rear lower frame member 112 and the second front lower frame member 138. The second folding strut 178 includes a front strut 180 coupled with a rear strut 182 about a joint 184. In this way, when the walking aid 100 is pivoted or folded about the joints 156, 168 of the first and second frame connection plates 154, 166, the first and second folding struts 170, 178 may be permitted to collapse or pivot about the joints 176, 184 such that the rear lower frame structure 102 and the front lower frame structure move closer together or converge. Each of the first and second folding struts 170, 178 may include a stop feature such that the struts 170, 178 can only pivot in one direction and are restrained from pivoting in an opposite direction (i.e., beyond ninety degrees).

The seat 106 is pivotally coupled with the rear seat support member 114 so as to pivot between a seated, down, or lowered position (shown in FIG. 6) and a stowed, up, or raised position (shown in FIG. 11). A top surface of the seat 106 may be padded and a bottom surface of the seat 106 may be stiff or hard. A pair of rod clamps 186, seen in FIG. 11, may be positioned on the bottom surface of the seat 106 to receive the rear seat support member 114 therethrough. In this way, the seat 106 may pivot about the rear seat support member 114 from the lowered position to the raised position.

In the raised position, as seen in FIG. 11, the seat 106 may contact and be restrained from further pivoting by a back support member 188 that is U-shaped. The back support member 188 includes a first end 190 and a second end 192, where the first end is pivotally coupled with a rear section of the first frame connection plate 154 at a joint 194, such as a pin, rivet, or the like. The second end 192 of the back support member 188 is pivotally coupled with a rear section of the second frame connection plate 166 at a joint 196, such as a pin, rivet, or the like. More particularly, the first end 190 of the back support member 188 may fit within a sleeve 198 having a stop member that contacts the linear section 150 and restricts the back support member 188 from rotating back towards the rear seat support member 114. Similarly, the second end 192 of the back support member may fit within a sleeve 200 having a stop member that contacts the linear section 152 and restricts the back support member 188 from rotating back towards the rear seat support member 114.

Turning back to the rear lower frame structure 102, the linear section 150 of the first rear lower frame member 110 extends through the pair of first frame connection plates 154 between the first end 190 of the back support member 188 and the upper end 124 of the first rear lower frame member 110. The linear section 150 may be pivotally coupled with the pair of first frame connection plates 154 at a joint 202, such as a pin, rivet, or the like. On the other side, the linear section 152 of the second rear lower frame member 112 extends through the pair of second frame connection plates 166 between the second end 192 of the back support member 188 and the upper end 130 of the second rear lower frame member 112. The linear section 152 may be pivotally coupled with the pair of second frame connection plates 166 at a joint 204, such as a pin, rivet, or the like.

The upper frame structure 108 includes a first upper frame member 206, and a second upper frame member 208. The first upper frame member 206 may be L-shaped and includes a lower cylindrical section 210 that is linear with through-holes 212 vertically spaced along the section 210. The first upper frame member 206 also includes a curved transition section 214 and a first forearm section 216 that is linear and generally perpendicular to the lower cylindrical section 210. A first forearm support 218 is coupled to the first forearm section 216. The first forearm support 218 includes a curved support pad 220 for contacting and supporting the user's forearm, and a flared support member 222 positioned between the curved support pad 220 and the first forearm section 216. The flared support member 222 angles the curved support pad 220 so the front end of the pad 220 is farther away from the first forearm section 216 than a rear end of the pad 220. The angle of the curved support pad 220 may vary depending on the height of the user of the walking aid 100. With the first forearm section 216 being generally level or parallel with the floor surface, the curved support pad 220 will cause a user's arm to angle slightly upward from the elbow to the hand.

The first forearm section 216 is coupled with a first handle 242 oriented generally perpendicular to the first forearm section 216. Coupled to the first handle 242 is a brake lever 244 that is linked with a brake at the first front wheel 144.

The second upper frame member 208 may also be L-shaped and includes a lower cylindrical section 224 that is linear with through-holes 226 vertically spaced along the section 224. The second upper frame member 208 also includes a curved transition section 228 and a second forearm section 230 that is linear and generally perpendicular to the lower cylindrical section 224. A second forearm support 232 is coupled to the second forearm section 230. The second forearm support 232 includes a curved support pad 234 for contacting and supporting the user's forearm, and a flared support member 236 positioned between the curved support pad 234 and the second forearm section 230. The flared support member 236 angles the curved support pad 234 so the front end of the pad 234 is farther away from the second forearm section 230 than a rear end of the pad 234. The angle of the curved support pad 234 may vary depending on the height of the user of the walking aid 100. With the first forearm section 230 being generally level or parallel with the floor surface, the curved support pad 234 will cause a user's arm to angle slightly upward from the elbow to the hand.

The second forearm section 230 is coupled with a second handle 246 oriented generally perpendicular to the second forearm section 230. Coupled to the second handle 246 is a brake lever 248 that is linked with a brake at the second front wheel 160.

In order to adjust the height of the upper frame structure 108 relative to the floor surface, the lower cylindrical sections 210, 224 of the first and second upper frame members 206, 208 may be received within the lumens of the first and second tubular member 126, 132, respectively, and first and second pins (not shown) may be inserted into coaxially aligned through-holes 128, 134, 212, 226 of the lower cylindrical sections 210, 224 and the first and second tubular members 126, 132, respectively. That is, the first and second upper frame members 206, 208 of the upper frame structure 108 are adjustably coupled, respectively, to the first and second rear lower frame member 110, 112 of the rear lower frame structure 102 along lengths of the first and second upper frame members 206, 208. More particularly, the first and second upper frame members 206, 208 of the upper frame structure 108 and the first and second tubular member 126, 132 define a telescoping connection between each other. Adjustment of the height of the upper frame structure 108 does not move the relative fore-aft position of first and second forearm supports 218, 232. That is, the height adjustment of the upper frame structure 108 is accomplished in the vertical direction only.

Reference is made to FIG. 11, which depicts the walking aid 100 with the seat 106 in an up or upward position, and the first and second upper frame members 206, 208 of the upper frame structure 108 rotated one hundred eighty degrees from a forward position or orientation to a rearward position or orientation. More particularly, the first upper frame member 206 is rotated one hundred eighty degrees about the longitudinal axis through the lumen of the first tubular member 126, and the second upper frame member 208 is rotated one hundred eighty degrees about the longitudinal axis through the lumen of the second tubular member 132. In this way, the walking aid 100 may be used by a user where the seat 106, the front seat support member 140, and back rest 188 are positioned in front of the user's legs, where the freely rotatable rear wheels 118, 122 are positioned, generally, beneath the first and second handles 242, 246. Alternatively, the walking aid may be used by a user where the seat 106, the front seat support member 140, and back rest 188 are positioned behind the user's legs, where the fixed front wheels 144, 160 are positioned, generally, beneath the first and second handles 242, 246.

Stated differently, the walking aid 100 is configurable in at least two arrangements for supporting a user in walking. In a first arrangement of the walking aid 100, shown in FIG. 6, the seat 106 (in either an upward or down position) is positioned behind the user such that an area between and in front of the first and second upper frame members 206, 208 is open. In a second arrangement of the walking aid 100, shown in FIG. 11, the seat 106 (in either an upward or down position) is positioned in front of the user such that an area between and in front of the first and second upper frame members 206, 208 is blocked or obstructed by the seat 106, the front seat support member 140, the back support member 188, and the rear seat support member 114.

Reference is made to FIG. 12, which is an isometric view of the walking aid 100 in a folded, stowed, or stored position. In particular, the walking aid 100 may be pivoted or folded about the joints 156, 168 of the first and second frame connection plates 154, 166 such that the rear lower frame structure 102 and the front lower frame structure 104 move closer together or converge. To permit this pivoting, the first and second folding struts 170, 178 also collapse or pivot about their respective joints 176, 184. As seen in the figure, the back support member 188 may be pivoted about the joints 194, 196 at the rear of first and second frame connection plates 154, 166. And, the first and second lower cylindrical sections 210, 224 of the first and second upper frame members 206, 208, respectively, may be removed from being received within the top openings of the first and second tubular member 126, 132 of the first and second rear lower frame members 110, 112. The first and second lower cylindrical sections 210, 224 may then be received within bottom openings of the first and second tubular members 126, 132 of the first and second rear lower frame members 110, 112, respectively. The first and second upper frame members 206, 208 may be pivoted about the longitudinal axes of the lumens of the first and second tubular members 126, 132 such that the first and second handles 242, 246 are positioned adjacent each other and inward of the first and second tubular members 126, 132.

In the folded position, seen in FIG. 12, the walking aid 100 may be transported by rolling the walking aid 100 on the front wheels 144, 160 or carried. As seen in FIG. 12, the front wheels 144, 160 are positioned outside of the rear wheels 118, 122 such that the front wheels 144, 160 are still rotatable.

Persons of ordinary skill in the art may appreciate that numerous design configurations may be possible to enjoy the functional benefits of the inventive systems. Thus, given the wide variety of configurations and arrangements of embodiments of the present invention the scope of the invention is reflected by the breadth of the claims below rather than narrowed by the embodiments described above. Further, reference to “first” and “second” may also be considered “right” and “left” or vice versa.

Claims

1. A walking aid that assists a user in walking in an upright position, the walking aid comprising: a rear lower frame structure comprising first and second rear lower frame members;a front lower frame structure comprising first and second front lower frame members, the first front lower frame member coupled to the first rear lower frame member, the second front lower frame member coupled to the second rear lower frame member;a first front wheel coupled to the first front lower frame member;a second front wheel coupled to the second front lower frame member;a first rear wheel coupled to the first rear lower frame member;a second rear wheel coupled to the second rear lower frame member;an upper frame structure comprising a first upper frame member, a second upper frame member, a first forearm support coupled to the first upper frame member, a second forearm support coupled to the second upper frame member, a first handle coupled with the first upper frame member, and a second handle coupled with the second upper frame member, the first upper frame member being adjustably coupled to the first rear lower frame member along a first length of the first upper frame member, the second upper frame member being adjustably coupled to the second rear lower frame member along a second length of the second upper frame member; anda back rest coupled to the rear lower frame structure and extending between the first and second rear lower frame members.

2. The walking aid of claim 1, further comprising a seat operably coupled to and pivotal relative to the rear lower frame structure so as to be pivotally positioned in a lowered position or a raised position.

3. The walking aid of claim 2, further comprising a seat rest coupled between the first and second front lower frame members, the seat rest supporting the seat when the seat is in the lowered position.

4. The walking aid of claim 1, wherein the upper frame structure further comprises first and second brakes, the first brake joined with the first upper frame member near the first handle, the second brake joined with the second upper frame member near the second handle.

5. The walking aid of claim 1, wherein the first upper frame member is adjustably coupled to the first rear lower frame member along the first length of the first upper frame member via a first telescoping connection, the second upper frame member is adjustably coupled to the second rear lower frame member along the second length of the second upper frame member via a second telescoping connection.

6. The walking aid of claim 1, further comprising first and second folding joints, the first folding joint joining the first front lower frame member and the first rear lower frame member, the second folding joint joining the second front lower frame member and the second rear lower frame member.

7. The walking aid of claim 6, further comprising first and second collapsible struts, the first collapsible strut coupling the first front lower frame member and the first rear lower frame member, the second collapsible strut coupling the second front lower frame member and the second rear lower frame member.

8. A walking aid that assists a user in walking in an upright position, the walking aid comprising: a rear lower frame structure comprising first and second rear lower frame members;a front lower frame structure comprising first and second front lower frame members, the first front lower frame member coupled to the first rear lower frame member, the second front lower frame member coupled to the second rear lower frame member;a first front wheel coupled to the first front lower frame member;a second front wheel coupled to the second front lower frame member;a first rear wheel coupled to the first rear lower frame member;a second rear wheel coupled to the second rear lower frame member;an upper frame structure comprising a first upper frame member, a second upper frame member, a first forearm support coupled to the first upper frame member, a second forearm support coupled to the second upper frame member, a first handle coupled with the first upper frame member, and a second handle coupled with the second upper frame member, the first upper frame member coupled to the first rear lower frame member, the second upper frame member coupled to the second rear lower frame member;a back rest coupled to the rear lower frame structure and extending between the first and second rear lower frame members; anda seat operably coupled to and pivotal relative to the rear lower frame structure so as to be pivotally positioned in a lowered position or a raised position.

9. The walking aid of claim 8, wherein the first upper frame member is adjustable relative to the first rear lower frame member, and the second upper frame member is adjustable relative to the second rear lower frame member so as to increase or decrease a distance between the upper frame structure and the seat.

10. The walking aid of claim 8, further comprising a seat rest coupled between the first and second front lower frame members, the seat rest supporting the seat when the seat is in the lowered position.

11. The walking aid of claim 8, further comprising a rear seat support member coupled between the first and second rear lower frame members, the seat pivotally mounted to the rear seat support member.

12. The walking aid of claim 8, wherein the first and second front wheels are fixed wheels, and the first and second rear wheels are castor wheels.

13. The walking aid of claim 8, further comprising first and second folding joints, the first folding joint joining the first front lower frame member and the first rear lower frame member, the second folding joint joining the second front lower frame member and the second rear lower frame member.

14. The walking aid of claim 13, further comprising first and second collapsible struts, the first collapsible strut coupling the first front lower frame member and the first rear lower frame member, the second collapsible strut coupling the second front lower frame member and the second rear lower frame member.

15. A walking aid that assists a user in walking in an upright position, the walking aid comprising: a rear lower frame structure comprising first and second rear lower frame members;a front lower frame structure comprising a first front lower frame member, a second front lower frame member, and a seat rest coupled to and extending between the first and second front lower frame members, the first front lower frame member coupled to the first rear lower frame member at a first folding joint, the second front lower frame member coupled to the second rear lower frame member at a second folding joint;a first front wheel coupled to the first front lower frame member;a second front wheel coupled to the second front lower frame member;a first rear wheel coupled to the first rear lower frame member;a second rear wheel coupled to the second rear lower frame member; andan upper frame structure comprising a first upper frame member, a second upper frame member, a first forearm support coupled to the first upper frame member, a second forearm support coupled to the second upper frame member, a first handle coupled with the first upper frame member, and a second handle coupled with the second upper frame member, the first upper frame member coupled to the first rear lower frame member, the second upper frame member coupled to the second rear lower frame member,wherein the rear lower frame structure and the front lower frame structure are foldable relative to each other about the first and second folding joints such that the first and second front wheels are positioned closer to the first and second rear wheels in a folded state than when the rear lower frame structure and the front lower frame structure are in an unfolded state.

16. The walking aid of claim 15, further comprising a back rest coupled to the rear lower frame structure and extending between the first and second rear lower frame members.

17. The walking aid of claim 15, further comprising a seat operably coupled to and pivotal relative to the rear lower frame structure so as to be pivotally positioned in a lowered position or a raised position, the seat rest supporting the seat when the seat is in the seated position.

18. The walking aid of claim 15, further comprising first and second collapsible struts, the first collapsible strut coupling the first front lower frame member and the first rear lower frame member, the second collapsible strut coupling the second front lower frame member and the second rear lower frame member.

19. The walking aid of claim 15, wherein the first upper frame member is adjustable relative to the first rear lower frame member, and the second upper frame member is adjustable relative to the second rear lower frame member so as to increase or decrease a distance between the upper frame structure and the seat.

20. The walking aid of claim 15, wherein the first and second front wheels are fixed wheels, and the first and second rear wheels are castor wheels.