# US 2018/0021200 A1 · Multiple terrain mobility device

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- Number: US 2018/0021200 A1
- Document ID: US20180021200A1
- Status: Published application
- Kind: A1
- Application number: 15/653,684
- Filed: 2017-07-19
- Published: 2018-01-25
- Earliest claimed: 2016-07-19
- Inventors: JOSHUA ORNDORFF
- Web page: https://patentgrep.com/patent/US20180021200A1

## CPC

- A61H 3/00: Appliances for aiding patients or disabled persons to walk about (apparatus for helping babies to walk A47D13/04 {; applying electrical currents by contact electrodes for stimulating motor muscles, e.g. walking assistance A61N1/36003})
- A61H 1/00: Apparatus for passive exercising (A61H5/00 takes precedence); Vibrating apparatus; Chiropractic devices, e.g. body impacting devices, external devices for briefly extending or aligning unbroken bones
- A61H 3/008: {using suspension devices for supporting the body in an upright walking or standing position, e.g. harnesses}
- A61H 3/02: Crutches
- A61H 3/0244: {Arrangements for storing or keeping upright when not in use}
- A61H 2003/001: {on steps or stairways}
- A61H 2003/025: {with devices for securing a pair of crutches together}
- A61H 2201/0192: Specific means for adjusting dimensions
- A61H 2201/1253: driven by a human being, e.g. hand driven
- A61H 2201/1635: Hand or arm, e.g. handle
- A61H: PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY (electrotherapy, magnetotherapy, radiation therapy or ultrasound therapy A61N)

## Abstract

A multiple terrain mobility device capable of use as a walker or crutches. The mobility device has a central cross support and a pair of crutch assemblies. Each respective crutch assembly has a rear support leg that can be extended downward or retracted upward and a front leg assembly that is capable of extending forward or retracting rearward. These adjustable extension features allow the mobility device, to traverse terrain of varying height such as stairs or hills with greater stability. The central cross support can be separated into a left and right cross support member so that the walker can be converted into a pair of crutches when conditions warrant.

## Claims

### Claim 1

A multiple terrain mobility device comprised of a central cross support and a pair of crutch assemblies,
wherein each respective crutch assembly is comprised of a set of support legs which include at least one vertically oriented front support leg and at least one vertically oriented rear support leg and at least a pair of horizontally oriented components
wherein each respective rear support leg is rearward of the respective front support leg relative to the position of a user of the mobility device facing forward,
wherein the respective front and rear support legs are secured by, and help secure, at least a pair of horizontally oriented components,
wherein the at least a pair of horizontally oriented components are comprised of a top hand grip that extends from the front support leg to the rear support leg,
at least one center crutch handle also extending from the front to the rear support leg and is connected to the front and rear support legs in a relative position beneath the top hand grips,
and at least one lower support bar also extending from the front to the rear support leg in a relative position beneath the at least one center crutch handle,
and wherein the rear support leg further comprises adjustment apparatus capable of extending the rear leg downward or retracting the rear leg upward to adjust the height of the rear leg, and
further comprised of an extendable or retractable front leg component in a relative forward direction from the front support leg, and
and further comprised of front leg adjustment apparatus for retracting the front leg component or extending the front leg component to provide extra stability, and
wherein the central cross support is further comprised of a left cross support member and a right cross support member relative to a user,
and a separation apparatus located in proximity to the junction between the Left and right cross support members that is capable of both securely holding the left and right support members together and reversibly separating them.

### Claim 2 (depends on 1)

A multiple terrain mobility device according to claim 1, wherein the cross support members are each comprised of at least a pair of horizontal bars connected to moveable cross support securing apparatus, and
wherein the moveable cross support securing apparatus is capable of securing the respective left and right cross support members to the respective front support legs such that the left and right support cross support members are capable of rotating up to 270 degrees.

### Claim 3 (depends on 1)

A multiple terrain mobility device according to claim 1, wherein the left and right cross support members, the front support legs, rear support legs, the top hand grips, the center crutch handles, the lower support bars, front leg components, and general crutch assemblies are each of a single or multiple-piece construction, and are each constructed of a metal, plastic or other resin, wood, fiberglass, carbon fiber, or a combination thereof.

### Claim 4 (depends on 1)

A multiple terrain mobility device according to claim 1, wherein either:
the front leg component is a retractable 90-degree component, directly or indirectly connected or fitted to the bottom support bar, or
the front leg component is a vertical component connected directly or indirectly to the bottom support bar at a 90-degree angle, and wherein the bottom support bar is retractable or extendable and is capable of being extended further forward than the front support leg,

### Claim 5 (depends on 1)

A multiple terrain mobility device according to claim 1, wherein the top hand grips have a non-smooth surface to facilitate gripping, are covered with padding for a more comfortable grip, or a combination thereof.

### Claim 6 (depends on 1)

A multiple terrain mobility device according to claim 1, wherein each crutch assembly is further comprised of an upper support located just below the top hand grip and secured to the front and rear support leg, and wherein the upper support is either part of a single piece construction with the top hand grip or a separate component.

### Claim 7 (depends on 1)

A multiple terrain mobility device according to claim 1, wherein the respective crutch handles are height adjustable, and
wherein the height adjustability of the respective crutch handles is brought about by a dentin type system with apertures located in proximity to the respective crutch handles, a frictionally securing apparatus within or in proximity to the respective crutch handles, or at least one bolt and nut fitted through at least one of a plurality of apertures in the support bars and center crutch handles.

### Claim 8 (depends on 1)

A multiple terrain mobility device according to claim 1, wherein the lower support bars are secured to the respective front and rear support bars with respective front and rear support leg fittings capable of securing the lower support bars to the respective front and rear support legs.

### Claim 9 (depends on 1)

A multiple terrain mobility device according to claim 1, wherein the bottom support bar goes through, and is extendable beyond, the front leg fitting and is attached to the front leg component at a 90-degree angle,
or the bottom support bar is secured between the front leg fitting and rear leg fitting and the front leg is a single or multiple piece 90-degree component with one end extending from, and retractable into, the bottom support bar.

### Claim 10 (depends on 1)

A multiple terrain mobility device according to claim 1, wherein the rear support legs are of a telescopic construction.

### Claim 11 (depends on 1)

A multiple terrain mobility device according to claim 1, wherein the rear leg adjustment apparatus can be comprised of a motor with controlling device or detent apparatus with a series of apertures and detent pin or depress-able button.

### Claim 12 (depends on 1)

A multiple terrain mobility device according to claim 1, further comprising an extension controller capable of retracting or extending the rear leg and the front leg component.

### Claim 13 (depends on 1)

A multiple terrain mobility device according to claim 1, wherein the front leg component is capable of being rotated at least 180 degrees from a downward to an upward orientation.

### Claim 14 (depends on 1)

A multiple terrain mobility device according to claim 1, wherein the front leg components and rear support legs are each further comprised of feet at the bottom of the legs for gripping the ground, and
wherein the feet can be comprised of a plastic or other resin, silicone, rubber, or rubberized material.

### Claim 15 (depends on 1)

A multiple terrain mobility device according to claim 1, wherein the bottom support bar extends beyond the front support leg and a portion of the bottom support bar is telescopic or of slightly smaller or larger diameter than the remainder of the bottom support bar such that it is capable of retracting within the remainder of the support bar.

### Claim 16 (depends on 1)

A multiple terrain mobility device according to claim 1, further comprising front leg extension apparatus located on the bottom support bar and/or the front leg component, and wherein the front leg component extension apparatus is capable of being extended forward or retracted rearward,
and wherein the leg extension apparatus is manually or automatically controlled.

### Claim 17 (depends on 16)

A multiple terrain mobility device according to claim 16, wherein the front leg extension apparatus is a dentin type apparatus with apertures and dentin type pin or button, or is a motor-controlled apparatus.

### Claim 18 (depends on 1)

A multiple terrain mobility device according to claim 1, wherein the cross support is generally curved to provide a concave space, when the mobility device is in a crutch configuration.

### Claim 19 (depends on 1)

A multiple terrain mobility device according to claim 1, wherein the separation apparatus of the central cross support is comprised of a detent system with slide-able or depress-able buttons, a lever with actuator, or a threaded sleeve system.

### Claim 20 (depends on 1)

A multiple terrain mobility device according to claim 1, wherein the left and right support members of the central cross support are capable of being swiveled either 90 degrees inward or 270 degrees outward to a position parallel to the hand grips.