Modular Frame for Stand-up, Motor-driven Scoote

Abstract

This design incorporates four separate modules which are bolted together in this succession: a welded, structural single-unit steering tube/downtube module; independent, twin, front-to-rear horizontal frame rails which serve as the support for the rider to stand; a welded, structural single-unit module to mount shock absorbers and a swingarm; and, a welded swingarm. The defined space between the twin frame rails and the two adjoining modules can be modified by altering the length of the frame rails and/or using spacers between each rail and its corresponding module at the bolt-on location.

Description

BACKGROUND OF THE INVENTION

The kick-scooter was originally designed for children as a recreational toy. Various developments such as frame and/or wheel sizes and optional equipment have spurred popularity of the vehicle as a mode of short-hop transportation for people of all ages. In tandem, electric vehicles, specifically scooters, have also risen in popularity for use as commuter transportation as an alternative to automobiles or motorcycles. The disclosed invention utilizes an improved frame structure comprised of a steering tube and downtube, which are typically welded, that support a rotatable fork and attached front wheel, a handlebar stem, and handlebars. The bottom of the downtube is attached to the base platform of the frame upon which the rider stands. This junction can be welded or bolted, or shaped as a single, continuous unit from bent tubular or pressed metal. The front of the base platform extends rearward with sufficient length for the rider to stand with feet positioned one in front of the other, typical of the stance upon riding a skateboard. Right side and left side parallel supports of tubular or pressed metal extend rearward from the rear side of the base platform, and can also be shaped as one continuous unit of the base, to a length suitable for the attachment of a rear wheel assembly. The embodiment of a kick-scooter frame design, or any particular feature thereof, is not-limited. Accordingly, in an alternate embodiment from the above described, the kick-scooter frame may incorporate a hinged or collapsible frame, or, a shock absorbing mechanism on the front forks or rear wheel frame assembly. Also, the electric motor-driven frame designs incorporate a defined space within the base platform to house the battery, therefore, the dimensions of the battery must be defined prior to the manufacture of the frame. Batteries manufactured for typical scooter motors are non-standardized sizes. With ever-advancing technology of the battery, such as capacity and efficiency while maintaining comparably reduced size dimensions, upgrading to a new battery, for the advantage of shorter recharge time and greater travel distance per charge, would be impossible if the battery was only slightly larger in dimension than the original battery for which the frame was designed.

SUMMARY OF THE INVENTION

It is the objective of the present invention to prevent obsolescence of the entire vehicle due to continual advancements in battery technology, By swapping out only one module, the twin, front-to-rear horizontal frame rails of different dimensions than the original, the battery's defined space can accommodate any reasonably, nonstandardized sized battery with the latest technological advancements. The other three original modules, and any/all corresponding components that make up the complete embodiment of the vehicle, remain.

BRIEF DESCRIPTION OF THE DRAWINGS

Page 1 shows no figure numeral. This is the representative first page drawing.

FIGS. 1-4 is Prior Art.

FIG. 5 shows the disclosed invention complete and ready-to-ride.

FIG. 6 has ancillaries and components removed for clarity of frame structure.

FIG. 7 is the four modules in an exploded view.

FIG. 8 is the four modules in an exploded view canted side angle.

FIG. 9 is the modules viewed in a canted angle with bolts' paths.

FIG. 10 is an aftermarket, longer than original frame rail.

FIG. 11 is an exploded rear angle view with rail spacers.

DETAILED DESCRIPTIONS OF THE DRAWINGS

FIGS. 1-4 is Prior Art.

FIG. 5 is the disclosed invention fully assembled, completed with all necessary components to ride the vehicle. The invention utilizes 26″ mountain bike sized wheel assemblies which makes the vehicle suitable for adult riders.

FIG. 6 is an exploded view of FIG. 5 but with many of the components removed to show the actual frame structure more precisely. The wheel assemblies (7,9) are not limited to standard 26″ mountain bike sized wheels. The electric hub motor (10) is a product that comes in many output capacities and is not limited to any. The greatest benefit of this invention is the four modules: the steering tube (5) is connected to the downtube (6) and makes up the first in the succession of the four modules. The frame rails module, shown here (2), is the left side rail. Its twin is parallel to it, and hidden in this view. This is the designated space for the battery. This module can be changed with similar rails of the same bolting pattern but of different length and heights. Batteries for electric motors are continually changing and improving with updated technology. As there is no specific standardized sizes, an aftermarket battery could prove to be impossible to mount within the designated space. Having the ability to change only this module, with the three other modules remaining, the benefits of the updated technology may translate into shorter charging time, longer distances for travel between recharging and greater power output. The third module (3), the shock absorber and swingarm mount, is partially hidden in this view. The swingarm (4) is partially hidden in this view.

FIG. 7 is a partially exploded view of the four module (1,2,3,4) in a line.

FIG. 8 is an overhead view to show off (2) the twin frame rails. The bolt paths are shown in FIG. 9 to show how all four modules are joined. Exposed in FIG. 10 is the original equipment frame rail module (2) and the aftermarket, longer version of the rail (11). Length is limited only to a reasonably sized battery considering weight and overall dimensions. FIG. 11 shows an exploded view of the four modules with widening spacers (12) in between the frame rails and their corresponding bolt on positions to the modules (1,3).

Claims

1) A kick-scooter frame structure of non-limited dimensions comprised of four separate modules bolted together in succession: a welded, structural, single-unit steering tube/downtube module;independent, twin, front-to-rear horizontal frame rails;a welded, structural, single-unit shock absorbers and swingarm mount module, and, a swingarm.

2) The frame structure recited in claim 1 with non-limited, alternative dimensions of the independent, twin, front-to-rear horizontal frame rails.