This invention is directed toward mobile chairs and stools and more specifically to height adjustable mobile chairs with plural operative configurations.
Current multifunctional carts have a frame including an upper and lower support member, with the lower support member fixedly attached to a plurality of wheels and the upper support member attached to a frame member having a pull handle such as disclosed in U.S. Pat. No. 7,661,685. Between the upper and lower support member can be a space used for storage as disclosed in U.S. Pat. No. 6,520,513. Often, the upper support member includes a padded area, with a generally planar seat attached to the frame as disclosed in U.S. Pat. No. 7,891,678. Other height adjustable chairs and stools include U.S. Pat. Nos. 8,569,651, 5,611,511 and 6,010,187.
There is a desire to have a multifunctional cart support an ascending or descending force applied by a user using a pair of arms fixedly attached to the frame of the multifunctional cart, acting as a stable arm configuration. Prior devices lack a capability for a stable arm configuration that would allow the user to descend onto the multifunctional cart from a standing position and ascend from the multifunctional cart to the standing position. The stable arm configuration acts to support the ascending or descending force of the user at a height appropriate to a height of the multifunctional cart, with such not provided by the current configurations.
A multifunctional cart can include a frame and a pair of arms, with each arm fixedly attached at opposite ends of the frame and extending outwardly from the frame, thereby defining an outer closed end. The pair of arms support an ascending or descending force applied to the multifunctional cart. A plurality of platform support members can be attached to the frame at spaced distances outwardly from the frame. The platform support members transversely support the pair of arms. A platform can be slideably engageable within an interstitial space, defined as a space between adjacent platform support members, providing an adjustable surface with respect to the frame. Thus the platform support members act to support the ascending or descending force applied to the platform.
A multifunctional cart can include a rectangular frame having a pair of short sides, a pair of long sides, and a pair of arms. Each arm can be fixedly attached at opposite ends of the rectangular frame, extending outwardly from the rectangular frame and defining an outer closed end. The pair of arms support an ascending or descending force applied to the multifunctional cart as the user attempts to rise from a kneeling or seated position. A plurality of platform support members can be transversely attached to the rectangular frame along a longitudinal axis of the rectangular frame at spaced distances outwardly from the rectangular frame. The platform support members transversely support the pair of arms. Further, a platform can be slideably engageable within an interstitial space, defined as a space between adjacent platform support members, providing an adjustable surface with respect to the rectangular frame. The platform can have a pair of stop members fixedly attached to side corner edges of the platform to prevent sliding movement after full engagement of the platform with respect to the platform support members.
A multifunctional cart can include a rectangular frame having a pair of short sides, a pair of long sides, and a pair of arms. Each arm can be fixedly attached at opposite ends of the rectangular frame, extending outwardly from the rectangular frame and defining an outer closed end. The pair of arms support an ascending or descending force applied to the multifunctional cart. A tray can be pivotably attached to the rectangular frame at one of the opposite ends. The tray can be lockable in both a storage position and a use position. A first tray can have a recessed first surface and a second tray can be a cup holder. The multifunctional cart can include a plurality of platform support members transversely attached along a longitudinal axis to the rectangular frame at spaced distances outwardly from the rectangular frame. The platform support members transversely support the pair of arms. A platform can be slideably engageable within an interstitial space, defined as a space between adjacent platform support members, providing an adjustable surface with respect to the rectangular frame. The platform can have a pair of stop member fixedly attached to side corner edges of the platform to prevent sliding movement after full engagement of the platform with respect to the platform support members. The pair of stop members prevent an unintended dislodging movement with respect to the interstitial space between platform support members. The platform can include a first surface with a padded area defining a seat. A pair of side rails can be removably attached to the rectangular frame, defining a storage space.
Other applications of the present invention will become apparent to those skilled in the art when the following description of the best mode contemplated for practicing the invention is read in conjunction with the accompanying drawings.
The description herein makes reference to the accompanying drawings wherein like reference numerals refer to like parts throughout the several views, and wherein:
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The multifunctional cart 10 further can include a plurality of platform support members 20 fixedly attached to a first arm 60a, 62a and a second arm 60b, 62b of the pair of arms 14a, 14b. As shown in
With reference to
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The platform 24 of the multifunctional cart 10 can further include a first surface 32a having a padded area 34 defining a seat 36. The seat 36 can be fixably or removably attached to the platform 24. As known to those skilled in the art, fixable attachment of the seat 36 to the platform 24 can be by any fastening process includes staples, glue, stitching, nails or any combination thereof. As known to those skilled in the art, removable attachment can employ any fastening process including snaps, buttons, fabric hook and loop fastener, or other transient fastening means. The composition and design of the seat 36 as known to those skilled in the art can include a foam or polyurethane cushion surrounded by a weather-resistant vinyl covering. The padded area 34 can occupy any portion of a surface area 72 of the first surface 32a of the platform 24, from a total coverage of the first surface 32a of the platform 24 (see
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The multifunctional cart 10 can further include a tray 42 attached to at least one of the opposite ends 16a, 16b of the multifunctional cart 10. More specifically, the tray 42 can pivotably engage using a hinge bracket 52 to attach to at least one of the pair of arms 14a, 14b. The hinge bracket 52 can be fixably or removably attached to at least one of the pair of arms 14a, 14b. The tray 42 can have both a storage position 78 (
Additionally, the multifunctional cart 10 can include a pair of side rails 46 removably attached to the frame 12. As known to those skilled in the art, the removable attachment can employ any transient joint forming mechanism including but not limited to a bridle joint, dowel joint, finger joint, trench joint, mortise and tenon joint or any combination thereof. Boundaries as defined by the plurality of platform support members 20 transversely attached to the pair of arms 14, and the pair of side rails 46, define a storage space 48. The storage space 48 can contain items as desired by the user, such as but not limited to garden equipment, home improvement tools, and automotive tools.
While the invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not to be limited to the disclosed embodiments but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims, which scope is to be accorded the broadest interpretation so as to encompass all such modifications and equivalent structures as is permitted under the law.
This application claims the benefit of U.S. Provisional Patent Application No. 62/121,622, filed on Feb. 27, 2015, which is hereby incorporated by reference herein in its entirety.
Number | Date | Country | |
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62121622 | Feb 2015 | US |