Height adjustable rolling walker for transportation seating
View Patent ↗A walker device for assisting an individual with mobility which is temporarily convertible to a wheeled transportation chair, includes a frame structure having two front legs and two rear legs, each of the legs having a leg extension adjustably attached thereto and supported on a rotatable wheel. A seat is attached to the frame structure. A backrest is selectively disposed in a front position for a rearward seating condition or in a rear position for a forward seating condition. A footrest assembly is optionally attached to the frame structure and is adapted to pivot about first and second pivoting axes parallel to each other, between a folded position and an unfolded position optionally with different height levels.
1. A walker device for assisting an individual with mobility, comprising:
a frame structure including:
two front legs in a substantially parallel relationship, each having an upper end and a lower end,
two rear legs in a substantially parallel relationship, each having an upper end and a lower end, the rear legs being connected at the upper end thereof to the respective front legs, and
a leg extension adjustably attached to the lower end of each of the front and rear legs;
means for rolling the walker device along a support surface, the means being attached to each leg extension of the front and rear legs;
a seat extending between the front legs and between the rear legs and attached to the frame structure to provide seating at a selected height, enabled by adjustable attachments of the leg extensions to the respective front and rear legs; and
a detachable backrest being selectively attached to a first pair of brackets mounted on the front legs in a front position or to a second pair of brackets mounted on the rear legs in a rear position.
2. The walker device as defined in claim 1 wherein the backrest comprises an upper portion extending transversely with respect to the frame structure and two arms selectively supported in the first or second pair of brackets.
3. The walker device as defined in claim 2 wherein the frame structure comprises a pair of hand grips, each being adjustably attached to the upper end of one of the front legs, the hand grips being enabled to adjust in height without interference with the upper portion of the backrest when the backrest is in the rear position.
4. The walker device as defined in claim 1 wherein the front and rear legs are tubular, each leg extension of the front and rear legs including a tube for axial insertion into the respective tubular legs to a selected depth.
5. The walker device as defined in claim 1 comprising a foldable footrest assembly attached to the lower ends of the front legs, the footrest assembly being selectively disposed in a folded position when the walker device is used as a walker or in an first unfolded position or in a second unfolded position to support a user's feet at different levels relative to the seat when the walker device is used as a transportation chair.
6. The walker device as defined in claim 4 wherein each leg extension of the front and rear legs comprises a separate tubular sleeve for selective use to surround a portion of the tube when the tube is partially inserted into a corresponding one of the legs.
7. The walker device as defined in claim 6 wherein each of the front and rear legs is provided with a locking pin to be inserted laterally through the leg and an inserted portion of the tube of a corresponding leg extension when the tube is inserted into the leg to a selected depth, for securing the leg extension to the leg.
8. A walker device for assisting an individual with mobility, the walker device being convertible to a transportation chair, comprising:
a frame structure, including:
two front legs in a substantially parallel relationship, each having an upper end and a lower end,
two rear legs in a substantially parallel relationship, each having an upper end and a lower end, and
a leg extension adjustably attached to the lower end of each of the front and rear legs;
a rotatable wheel attached to each leg extension of the front and rear legs for rotatably supporting the frame structure;
a seat attached to the frame structure to provide seating at a selected height, enabled by adjustable attachments of the leg extensions to the respective front and rear legs;
a backrest attached to the frame structure, being selectively attached to the front legs in a front position for a rearward seating condition or attached to the rear legs in a rear position for a forward seating condition; and
a footrest assembly being pivotally attached to the frame structure, and having a footrest member being pivoted about first and second pivoting axes parallel to each other, between a folded position and an unfolded position, and the footrest member being suspended downward from the second axis in the unfolded position.
9. The walker device as defined in claim 8 wherein the footrest member is adjustable in accordance with the adjustable attachment of the leg extensions to the respective legs when the footrest assembly is in the unfolded position.
10. The walker device as defined in claim 9 wherein the footrest assembly comprises a pair of arms pivotally connected to the lower ends of the respective front legs and being adapted to pivot about the first pivoting axis, the footrest member being pivotally connected to the arms to pivot about the second pivoting axis.
11. The walker device as defined in claim 10 wherein the footrest member is substantially in a U-shape, including two substantially parallel side sections each having a telescoping configuration to allow a length adjustment of the side sections of the footrest member.
12. The walker device as defined in claim 11 wherein the footrest member is suspended downwardly from the arms when the arms are either in the folded position to extend substantially in an orientation of the front legs, or in the unfolded position to extend forwardly from the frame structure.
13. The walker device as defined in claim 8 wherein the footrest assembly comprises a first hinge device having means for restricting a first pivotal motion of the footrest assembly about the first pivotal axis within a first predetermined angular range, and a second hinge device having means for restricting a second pivotal motion of the footrest assembly about the second pivotal axis within a second predetermined angular range.
14. The walker device as defined in claim 11 wherein the footrest assembly comprises means for selectively locking the telescoping configuration to secure a selected length of the side sections of the footrest member.