Ladder safety device having a building clamp assembly and a ladder hook assembly

摘要

A house clamp assembly having a fixed jaw and a slide bar mounted movable jaw, the fixed jaw opposing the movable jaw. A one-way drive means, by operation of a trigger handle grip, releasably engages the slide bar and advances the movable jaw towards the fixed jaw. The one-way drive means is incapable of moving the slide bar and movable jaw away from the fixed jaw. A return motion of the movable jaw (separating) is accomplished manually when the one-way drive means is disengaged. A braking lever, which is biased to bind the slide bar, prevents reverse motion of the slideable jaw away from the fixed jaw, except when the first lever is disengaged from the slide bar. A device for securing a ladder to a building, wherein the removed end of the slide member has a hook shape; wherein the jaws include jaw faces having multiple raised portions, wherein the releasable braking means of the building clamp assembly means includes a pivoting lever; wherein the locking member of the ladder hook assembly includes a pivoting lever, attached at one end to the body, and having a slot dimensioned to slideably receive the hook slide member therethrough; wherein the body of the ladder hook assembly includes a pair of slots dimensioned for and adapted to slideably receive the slide member therethrough; and wherein the slots are arranged to maintain the hook slide member substantially parallel to the slide bar of the building clamp assembly.

主权项

1. A device for securing a ladder to a building, the device including:
a building clamp assembly; and a ladder hook assembly;
wherein the building clamp assembly comprises a body including a fixed jaw, and a body having a moveable jaw, the body having the moveable jaw moveable with respect to the body including the fixed jaw, the building clamp assembly including
a hand grip, a slide bar slideably engaging the body including the fixed jaw and fixedly attached to the body having the moveable jaw, a pivoting trigger handle on the body including the fixed jaw for moving the body having the moveable jaw and a releasable braking member for releasably preventing the body including the fixed jaw and the body having the moveable from separating; andwherein the ladder hook assembly is engaged with the building clamp assembly and includes a cylindrical slide member having a removed end, which the slide member slideably and rotatably engages round apertures within the body including the fixed jaw and the body having the moveable jaw, and a locking member, the locking member having a round hole for receiving the cylindrical slide member, the locking member pivotally engaging the body including the fixed jaw, which the locking member releasably fixes a distance of the removed end of the cylindrical slide member with respect to the body having the fixed jaw.