Work platform and method
AssigneeWerner Co.
InventorThomas W. Parker
Life of this patent
Estimating the term…
Abstract
A work scaffold having a platform and leg assemblies rotatably attached to each end of the platform. The platform may have a handle connected to free end that extends out the sides of the platform, which engage with links attached to the leg assemblies and the platform to lock the scaffold in an open or closed position. The platform may have hooks that extend out beyond the ends of the platform from under the platform so a second work scaffold can be situated on the hooks. The platform may be formed of boards with holes that receive cross members. A method for using a work scaffold. A method for forming a work scaffold.
Claims13
An apparatus comprising:
- a platform;
- a first hook assembly having a hook bracket coupled to an interior surface of a sidewall of the platform and having a hook arm secured to the hook bracket through a first slot formed in the hook bracket and a second slot formed in the hook bracket, the hook arm configured to slide through the first slot and the second slot between an extended position and a retracted position, the hook arm of the first hook assembly having a first end that extends out through the first slot and beyond an edge of the platform when the hook arm of the first hook assembly is in the extended position, wherein the first end is configured to couple to a second platform when the hook arm is in the extended position;
- and
- a hook spring attached to the platform spaced from and between the first slot and the second slot, and having a biasing force that presses the hook spring into engagement with the hook arm to impart a retention force that opposes movement of the hook arm,
- wherein the biasing force is configured to automatically move the hook spring into a notch of the hook arm when the hook arm is disposed in the extended position,
- wherein when the hook arm is in the extended position, the hook spring seats into the notch, thereby opposing movement of the hook arm from the extended position to the retracted position.
An apparatus comprising:
- a platform;
- a first hook assembly coupled to a sidewall of the platform and having a hook arm configured to slide between an extended position and a retracted position, the hook arm of the first hook assembly having a first end that extends out beyond an edge of the platform when the hook arm of the first hook assembly is in the extended position, wherein the first end is configured to couple to a second platform when the hook arm is in the extended position;
- and
- a hook spring attached to the platform and having a biasing force that presses the hook spring into engagement with the hook arm in the retracted position to impart a retention force that opposes movement of the hook arm,
- wherein the biasing force is configured to automatically move the hook spring into a notch of the hook arm when the hook arm is disposed in the extended position, the hook spring seating in the notch in the extended position and thereby opposing movement of the hook arm from the extended position to the retracted position,
- the notch having an interior cam surface so that manually pushing the hook arm in a longitudinal direction from the extended position to the retracted position to retract the hook arm causes the hook spring to disengage the notch;
- the first hook assembly having a hook bracket coupled to an interior surface of the sidewall, the hook arm being secured to the hook bracket through a first slot formed in the hook bracket and a second slot formed in the hook bracket and configured to slide through the first slot and the second slot between the extended position and the retracted position.
Dependencies are inferred from the claim text.