Abstract: A lift device includes a base, a platform, and a scissor assembly coupling the base to the platform. The scissor assembly includes a first scissor layer, a second scissor layer, and a third scissor layer each including an inner arm pivotally coupled to an outer arm. The first scissor layer has a first middle axis offset vertically from a first end axis center point. A kicker assembly couples an actuator configured to raise and lower the platform to the second scissor layer and the third scissor layer. The kicker assembly includes a kicker with opposing first and second kicker ends. The kicker is pivotally coupled to the second scissor layer and releasably coupled to the third scissor layer. The actuator rotates the kicker relative to the second scissor layer. A guide is coupled to the kicker and configured to limit the rotation of the kicker.

Abstract: A lift device includes a base, a platform, and a scissor assembly coupling the base to the platform. The scissor assembly includes a first scissor layer, a second scissor layer, and a third scissor layer each including an inner arm pivotally coupled to an outer arm. The first scissor layer has a first middle axis offset vertically from a first end axis center point. A kicker assembly couples an actuator configured to raise and lower the platform to the second scissor layer and the third scissor layer. The kicker assembly includes a kicker with opposing first and second kicker ends. The kicker is pivotally coupled to the second scissor layer and releasably coupled to the third scissor layer. The actuator rotates the kicker relative to the second scissor layer. A guide is coupled to the kicker and configured to limit the rotation of the kicker.

Abstract: A lift device includes a scissor assembly coupling a base to a platform. The scissor assembly includes a first scissor layer including a first inner arm configured to rotate relative to a first outer arm about a middle axis. The first scissor layer has an end axis center point defined based on the positions of the end axes about which the first inner arm and the first outer arm rotate. The first middle axis is offset from the first end axis center point. The scissor assembly further includes a second scissor layer coupled to the first scissor layer and extending between the first scissor layer and the platform. The second scissor layer includes a second inner arm pivotally coupled to a second outer arm.

Abstract: A lift device includes a base, a platform configured to support an operator, and a scissor assembly coupling the base to the platform. The scissor assembly includes a first scissor layer including a first inner arm pivotally coupled to a first outer arm. The first inner arm is configured rotate relative to the first outer arm about a first middle axis. The first scissor layer has a first end axis center point. An actuator is configured to move the platform between a fully raised position and a fully lowered position relative to the base. The first middle axis is offset vertically from the first end axis center point.

Abstract: At least one embodiment relates to a lift device including a chassis, a series of tractive elements coupled to the chassis, an implement, and a boom coupling the implement to the chassis. The boom includes (a) a first shell including a first sidewall and a first transition coupling a first set of flanges to the sidewall and (b) a second shell including a second sidewall and a second transition coupling a second set of flanges to the sidewall. The first shell abuts the second shell along the first set of flanges and the second set of flanges. The first transition and the second transition extend along a length of the boom. The first transition and the second transition at least partially define a channel. The first shell is coupled to the second shell by a weld positioned within the channel.

Abstract: A lift device includes a base, a platform configured to support an operator, and a scissor assembly coupling the base to the platform. The scissor assembly includes a first scissor layer including a first inner arm pivotally coupled to a first outer arm. The first inner arm is configured rotate relative to the first outer arm about a first middle axis. The first scissor layer has a first end axis center point. An actuator is configured to move the platform between a fully raised position and a fully lowered position relative to the base. The first middle axis is offset vertically from the first end axis center point.

Abstract: A panel installation apparatus is cooperable with an aerial work platform of a lift vehicle for installation of panels on a surface. The apparatus includes a trolley movable on at least one rail supported by the aerial work platform between a displaced position spaced from the surface and engaged position adjacent the surface. The trolley is sized to support a panel to be installed. At least one mounting unit is fixed to the aerial work platform via a mounting unit frame and pivotable between a receiving position adjacent the trolley in the engaged position and an installing position adjacent the surface. The mounting unit includes at least one fixing unit selectively attachable to the panel. With the panel delivered to the mounting unit, the mounting unit can be pivoted and secured to the panel via the fixing unit, and the panel can be subsequently pivoted adjacent the surface for installation.

Abstract: A panel installation apparatus is cooperable with an aerial work platform of a lift vehicle for installation of panels on a surface. The apparatus includes a trolley movable on at least one rail supported by the aerial work platform between a displaced position spaced from the surface and engaged position adjacent the surface. The trolley is sized to support a panel to be installed. At least one mounting unit is fixed to the aerial work platform via a mounting unit frame and pivotable between a receiving position adjacent the trolley in the engaged position and an installing position adjacent the surface. The mounting unit includes at least one fixing unit selectively attachable to the panel. With the panel delivered to the mounting unit, the mounting unit can be pivoted and secured to the panel via the fixing unit, and the panel can be subsequently pivoted adjacent the surface for installation.

Abstract: An aerial work platform apparatus includes a shiftable counterweight which shifts in response to movement of the boom in order to maintain optimum balance of the apparatus during movement of the boom and platform. The counterweight shifts towards and away from the front of the apparatus, and also in a vertical direction. Several constructions for shifting the counterweight are disclosed.