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US 2022/0186507 A1Published application
Multi-Function Scaffold with Reversible Platform
OwnerGrady F. Smithinventor
Life of this patent
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Abstract
A lightweight, multi-function scaffold includes an adjustable height platform that slidably mounts between two ladder frames. The side rails of the platform are reversible so that they can be mounted between the ladder frames in either a first orientation or in a second orientation. In the first orientation, the adjustable height platform is vertically movable between a first threshold and a maximum height. In the second orientation, the adjustable height platform is vertically movable between a second threshold and a minimum height. The ranges of movement in the first and second orientations may overlap.
Claims29
A scaffold comprising:
- first and second ladder frames, each ladder frame comprising two vertical supports made of a tubular material connected by two or more cross members;
- and
- an adjustable height platform with reversible side rails configured to be supported between the first and second ladder frames at a user selected height, wherein the side rails are configurable in a first orientation to obtain a maximum height and in a second orientation to obtain a minimum height.
A method of adjusting a height of a scaffold, the method comprising:
- determining a height requirement for a task;
- when the height requirement is greater than a first threshold, movably mounting side rails of an adjustable height platform between first and second ladder frames in a first orientation to enable adjustment of the platform between the first threshold and a maximum height;
- and
- when the height requirement is less than a second threshold, movably mounting the side rails of the adjustable height platform between first and second ladder frames in a second orientation to enable adjustment of the platform between the second threshold and a minimum height.
1 more element
A scaffold comprising:
- first and second ladder frames, each ladder frame comprising two vertical supports made of a tubular material connected by two or more cross members;
- and
- an adjustable height platform configured to be supported between the first and second ladder frames at a user selected height in an adjustment range, wherein a maximum height of the adjustment range is above an upper end of the ladder frame.
A scaffold comprising:
- first and second ladder frames, each ladder frame comprising two vertical supports made of a tubular material connected by two or more cross members;
- and
- an adjustable platform comprising:
- first and second side rails extending between respective pairs of the vertical supports on the first and second ladder frames;
- a pair of guide channels at opposing ends of each side rail configured to slide along respective ones of the vertical supports to adjust a height of the platform;
- and
- a releasable locking mechanism on each guide channel to releasably lock the guide channel at a desired position along vertical support;
- a ground-engaging member removably secured to a lower end of each vertical support, the ground-engaging member comprising a stem that extends into the lower end of a respective tubular vertical support;
- a span pin insertable through aligned openings in the ground-engaging member and the vertical support to secure the ground engaging member to the vertical support;
- and
- wherein the guide channel includes an opening configured to align with the openings in the ground-engaging member and vertical supports through which the span pin can pass when the adjustable height platform is adjusted to a predetermined height.
8 more elements
A scaffold comprising:
- first and second ladder frames, each ladder frame comprising two vertical supports made of a tubular material connected by two or more cross members, each vertical support including first and second openings passing through the vertical support adjacent a lower end thereof, wherein the axes of the first and second opening are perpendicular to one another;
- a platform configured to be supported between the first and second ladder frames;
- a ground-engaging member removably secured to a lower end of each vertical support, the ground-engaging member comprising a stem that extends into the lower end of a respective vertical support, wherein the stem of each ground-engaging member includes an opening passing through the stem that aligns with the first opening in the vertical support in a first orientation and a second opening in the vertical support in a second orientation;
- and
- a span pin configured to pass through one of the first and second openings in the vertical support and the opening in the ground-engaging member to secure the ground-engaging member to the vertical support.
2 more elements
A scaffold comprising:
- first and second ladder frames, each ladder frame comprising two vertical supports made of a tubular material connected by two or more cross members, each vertical support including first and second openings passing through the vertical support adjacent a lower end thereof, wherein the axes of the first and second opening are perpendicular to one another;
- a platform configured to be supported between the first and second ladder frames;
- a ground-engaging member removably secured to a lower end of each vertical support, the ground-engaging member comprising a stem that extends into the lower end of a respective vertical support, wherein the stem of each ground-engaging member includes a first opening passing through the stem that aligns with the first opening in the vertical support and a second opening passing through the stem that aligns with the second opening in the vertical support;
- and
- a span pin configured to pass through one of the first and second openings in the vertical support and a corresponding one of the first and second openings in the vertical support the opening in the ground-engaging member to secure the ground-engaging member to secure the ground-engaging member to the vertical support.
2 more elements
Dependencies are inferred from the claim text.