Patent classifications
E06C7/02
TELESCOPING LADDER WITH A CASCADING COLLAPSE MECHANISM
A telescoping ladder is provided, that includes a plurality of columns disposed in a nested arrangement for relative axial movement in a telescopic fashion between a fully-extended position and a collapsed position. The columns are connected to rungs by way of connector assemblies. Each connector assembly has a locking pin moveable between an extended position or a retracted position for extending into or retracting out of openings of adjacent columns to selectively lock or release the columns respectively. The telescoping ladder includes a plurality of actuators that permit collapsing the ladder in a sequential manner, the sequence involving collapsing the columns on a lower portion of the ladder prior to collapsing columns immediately thereabove.
TELESCOPING LADDER WITH A CASCADING COLLAPSE MECHANISM
A telescoping ladder is provided, that includes a plurality of columns disposed in a nested arrangement for relative axial movement in a telescopic fashion between a fully-extended position and a collapsed position. The columns are connected to rungs by way of connector assemblies. Each connector assembly has a locking pin moveable between an extended position or a retracted position for extending into or retracting out of openings of adjacent columns to selectively lock or release the columns respectively. The telescoping ladder includes a plurality of actuators that permit collapsing the ladder in a sequential manner, the sequence involving collapsing the columns on a lower portion of the ladder prior to collapsing columns immediately thereabove.
PORTABLE STEP DEVICE AND METHOD
A portable step device is disclosed herein. The portable step device includes a step support surface with a top-side, the step support surface further having a surface-covering affixed to the top-side. The device also features a support rod having a length, a step-end, a base-end, a front-side and a back-side, where the support rod is fixed to the bottom-side of the step support surface and configured to elevate the step support surface away from a terrain. In addition, the device includes a base support surface having a support-rod side and a ground-side to provide stability for bracing the support rod and the step support surface on the terrain.
PORTABLE STEP DEVICE AND METHOD
A portable step device is disclosed herein. The portable step device includes a step support surface with a top-side, the step support surface further having a surface-covering affixed to the top-side. The device also features a support rod having a length, a step-end, a base-end, a front-side and a back-side, where the support rod is fixed to the bottom-side of the step support surface and configured to elevate the step support surface away from a terrain. In addition, the device includes a base support surface having a support-rod side and a ground-side to provide stability for bracing the support rod and the step support surface on the terrain.
Access ladder assembly for a movable machine
An access ladder assembly for a machine includes a fixed section, a movable section, a biasing member, a locking member, and a release assembly. The fixed section includes a pair of guide members and a fixed step. The movable section is mounted on and is movable along the fixed section between extended and retracted positions. The movable section includes a pair of sidewalls, and at least one horizontal step and is biased towards the retracted position by the biasing member. The locking member locks the movable member at the extended position. The release assembly operates to release the locking member. A manually engagable actuator of the release assembly may be disposed adjacent the fixed step. The movable section may include rails that slide within a hollow portions of the guide members as the movable section moves between the extended and retracted positions.
Work vehicle
An access device is configured to be switched between a stored state in which an access member is stored in a vehicle body and a deployed state in which the access member is deployed. In the stored state, an exterior cover becomes a portion of an exterior surface of the vehicle body and the access member is stored inside the vehicle body. In the deployed state, the access member extends from the vehicle body toward a ground surface and the exterior cover is disposed on a back side of the access member.
LADDER
A ladder including a step leg and a support leg connected to the step leg with a joint. The joint is adjustable and the ladder latches automatically with the joint in the angular positions at 0, between 25 and 45, between 100 and 120 and at 180.
LADDER
A ladder including a step leg and a support leg connected to the step leg with a joint. The joint is adjustable and the ladder latches automatically with the joint in the angular positions at 0, between 25 and 45, between 100 and 120 and at 180.
Extension ladder with cushions
An extension ladder includes sub-ladders and cushions. Each sub-ladder includes a rung s connected to two tubes. The tubes of each sub-ladder are telescopically connected to the tubes of an adjacent sub-ladder. Each cushion includes an air bag and a slow-release unit. The air bag includes an open end with a channel. The air bag of each cushion is inserted in a corresponding tube. The slow-release unit is operable to slowly release air from the air bag and includes a restraint and a membrane. The restraint is connected to the open end of the air bag. The membrane includes an aperture and is movable arranged between the restraint and the open end of the air bag, with the aperture in communication with the channel.
Extension ladder with cushions
An extension ladder includes sub-ladders and cushions. Each sub-ladder includes a rung s connected to two tubes. The tubes of each sub-ladder are telescopically connected to the tubes of an adjacent sub-ladder. Each cushion includes an air bag and a slow-release unit. The air bag includes an open end with a channel. The air bag of each cushion is inserted in a corresponding tube. The slow-release unit is operable to slowly release air from the air bag and includes a restraint and a membrane. The restraint is connected to the open end of the air bag. The membrane includes an aperture and is movable arranged between the restraint and the open end of the air bag, with the aperture in communication with the channel.